From 0cd8694128262d3fed4744d9629151776a6c5813 Mon Sep 17 00:00:00 2001 From: Elichai Turkel Date: Mon, 28 Oct 2024 17:28:47 +0200 Subject: [PATCH 001/255] Impl TryFrom> for String --- library/alloc/src/string.rs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/library/alloc/src/string.rs b/library/alloc/src/string.rs index b042720933b6..565947db1458 100644 --- a/library/alloc/src/string.rs +++ b/library/alloc/src/string.rs @@ -3078,6 +3078,24 @@ impl From for Vec { } } +#[stable(feature = "try_from_vec_u8_for_string", since = "CURRENT_RUSTC_VERSION")] +impl TryFrom> for String { + type Error = FromUtf8Error; + /// Converts the given [`Vec`] into a [`String`] if it contains valid UTF-8 data. + /// + /// # Examples + /// + /// ``` + /// let s1 = b"hello world".to_vec(); + /// let v1 = String::try_from(s1).unwrap(); + /// assert_eq!(v1, "hello world"); + /// + /// ``` + fn try_from(bytes: Vec) -> Result { + Self::from_utf8(bytes) + } +} + #[cfg(not(no_global_oom_handling))] #[stable(feature = "rust1", since = "1.0.0")] impl fmt::Write for String { From 7de250f1e34ac18cf616179353a67019dfc2c0d6 Mon Sep 17 00:00:00 2001 From: DaniPopes <57450786+DaniPopes@users.noreply.github.com> Date: Wed, 1 Jan 2025 15:25:20 +0100 Subject: [PATCH 002/255] Stabilize const_slice_flatten Const-stabilizes `slice::as_flattened{,_mut}`: ```rust // core::slice impl [[T; N]] { pub const fn as_flattened(&self) -> &[T]; pub const fn as_flattened_mut(&mut self) -> &mut [T]; } ``` Tracking issue: https://github.com/rust-lang/rust/issues/95629 Requires separate libs-api FCP, as per https://github.com/rust-lang/rust/issues/95629#issuecomment-2566546257. Closes https://github.com/rust-lang/rust/issues/95629. --- library/core/src/slice/mod.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index df9720698d32..3ba1cbb12907 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -4784,7 +4784,7 @@ impl [[T; N]] { /// assert!(empty_slice_of_arrays.as_flattened().is_empty()); /// ``` #[stable(feature = "slice_flatten", since = "1.80.0")] - #[rustc_const_unstable(feature = "const_slice_flatten", issue = "95629")] + #[rustc_const_stable(feature = "const_slice_flatten", since = "CURRENT_RUSTC_VERSION")] pub const fn as_flattened(&self) -> &[T] { let len = if T::IS_ZST { self.len().checked_mul(N).expect("slice len overflow") @@ -4821,7 +4821,7 @@ impl [[T; N]] { /// assert_eq!(array, [[6, 7, 8], [9, 10, 11], [12, 13, 14]]); /// ``` #[stable(feature = "slice_flatten", since = "1.80.0")] - #[rustc_const_unstable(feature = "const_slice_flatten", issue = "95629")] + #[rustc_const_stable(feature = "const_slice_flatten", since = "CURRENT_RUSTC_VERSION")] pub const fn as_flattened_mut(&mut self) -> &mut [T] { let len = if T::IS_ZST { self.len().checked_mul(N).expect("slice len overflow") From 8b14227aa96cf1bfdfdf46e879837b0763073a1b Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 01:53:25 -0600 Subject: [PATCH 003/255] add MSVC tuple providers --- src/etc/lldb_commands | 6 ++++- src/etc/lldb_providers.py | 53 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+), 1 deletion(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index ef0c3740f032..71968f2dbe61 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -18,7 +18,10 @@ type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)NonZ type synthetic add -l lldb_lookup.synthetic_lookup -x "^core::num::([a-z_]+::)*NonZero.+$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::([a-z_]+::)+)PathBuf$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^(.*)$" --category Rust +type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref\$ >" --category Rust +type synthetic add -l lldb_lookup.MSVCTupleSyntheticProvider -x "^tuple\$<.+>$" --category Rust +type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust +type synthetic add -l lldb_lookup.synthetic_lookup -x "^\(.*\)$" --category Rust type summary add -F _ -e -x -h "^.*$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust @@ -40,4 +43,5 @@ type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)N type summary add -F lldb_lookup.summary_lookup -e -x -h "^core::num::([a-z_]+::)*NonZero.+$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::([a-z_]+::)+)PathBuf$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust +type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust type category enable Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 2f32ed833af1..9f2b2c85e653 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -205,6 +205,24 @@ def StdPathSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: return '"%s"' % data +def sequence_formatter(output: str, valobj: SBValue, _dict: LLDBOpaque): + length: int = valobj.GetNumChildren() + + long: bool = False + for i in range(0, length): + if len(output) > 32: + long = True + break + child: SBValue = valobj.GetChildAtIndex(i) + output += f"{child.value}, " + if long: + output = f"(len: {length}) " + output + "..." + else: + output = output[:-2] + + return output + + class StructSyntheticProvider: """Pretty-printer for structs and struct enum variants""" @@ -348,6 +366,41 @@ class TupleSyntheticProvider: return True +class MSVCTupleSyntheticProvider: + __slots__ = ["valobj"] + + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): + self.valobj = valobj + + def num_children(self) -> int: + return self.valobj.GetNumChildren() + + def get_child_index(self, name: str) -> int: + return self.valobj.GetIndexOfChildWithName(name) + + def get_child_at_index(self, index: int) -> SBValue: + child: SBValue = self.valobj.GetChildAtIndex(index) + return child.CreateChildAtOffset(str(index), 0, child.GetType()) + + def update(self): + pass + + def has_children(self) -> bool: + return self.valobj.MightHaveChildren() + + def get_type_name(self) -> str: + name = self.valobj.GetTypeName() + # remove "tuple$<" and ">", str.removeprefix and str.removesuffix require python 3.9+ + name = name[7:-1] + return "(" + name + ")" + + +def TupleSummaryProvider(valobj: SBValue, _dict: LLDBOpaque): + output: str = sequence_formatter("(", valobj, dict) + output += ")" + return output + + class StdVecSyntheticProvider: """Pretty-printer for alloc::vec::Vec From 71b6d49282ee68a980aada44a65d4f6e8f1c8991 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 02:02:01 -0600 Subject: [PATCH 004/255] add MSVC slice providers --- src/etc/lldb_commands | 2 ++ src/etc/lldb_providers.py | 27 +++++++++++++++++++++++++-- 2 files changed, 27 insertions(+), 2 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index 71968f2dbe61..23282d2d25b0 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -44,4 +44,6 @@ type summary add -F lldb_lookup.summary_lookup -e -x -h "^core::num::([a-z_]+:: type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::([a-z_]+::)+)PathBuf$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust +type summary add -F lldb_lookup.StdSliceSummaryProvider -e -x -h "^ref(_mut)?\$ >" --category Rust +type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref(_mut)?\$ >" --category Rust type category enable Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 9f2b2c85e653..7be40068b90a 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -456,6 +456,8 @@ class StdVecSyntheticProvider: class StdSliceSyntheticProvider: + __slots__ = ["valobj", "length", "ptr", "element_type", "element_size"] + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): self.valobj = valobj self.update() @@ -472,7 +474,7 @@ class StdSliceSyntheticProvider: def get_child_at_index(self, index: int) -> SBValue: start = self.data_ptr.GetValueAsUnsigned() - address = start + index * self.element_type_size + address = start + index * self.element_size element = self.data_ptr.CreateValueFromAddress( "[%s]" % index, address, self.element_type ) @@ -483,12 +485,33 @@ class StdSliceSyntheticProvider: self.data_ptr = self.valobj.GetChildMemberWithName("data_ptr") self.element_type = self.data_ptr.GetType().GetPointeeType() - self.element_type_size = self.element_type.GetByteSize() + self.element_size = self.element_type.GetByteSize() def has_children(self) -> bool: return True +class MSVCStdSliceSyntheticProvider(StdSliceSyntheticProvider): + def get_type_name(self) -> str: + name = self.valobj.GetTypeName() + + if name.startswith("ref_mut"): + # remove "ref_mut$ >" + name = name[17:-3] + ref = "&mut " + else: + # remove "ref$ >" + name = name[13:-3] + ref = "&" + + return "".join([ref, "[", name, "]"]) + +def StdSliceSummaryProvider(valobj, dict): + output = sequence_formatter("[", valobj, dict) + output += "]" + return output + + class StdVecDequeSyntheticProvider: """Pretty-printer for alloc::collections::vec_deque::VecDeque From c425660858fb19e13dde3a28fef824b1c4dd5f48 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 21:13:52 -0600 Subject: [PATCH 005/255] add msvc enum providers --- src/etc/lldb_commands | 6 +- src/etc/lldb_providers.py | 175 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 179 insertions(+), 2 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index 23282d2d25b0..24c485b35337 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -18,9 +18,10 @@ type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)NonZ type synthetic add -l lldb_lookup.synthetic_lookup -x "^core::num::([a-z_]+::)*NonZero.+$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::([a-z_]+::)+)PathBuf$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust +type synthetic add -l lldb_lookup.MSVCEnumSyntheticProvider -x "^enum2\$<.+>$" --category Rust +type synthetic add -l lldb_lookup.synthetic_lookup -x "^enum2\$<.+>::.*$" --category Rust type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref\$ >" --category Rust type synthetic add -l lldb_lookup.MSVCTupleSyntheticProvider -x "^tuple\$<.+>$" --category Rust -type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^\(.*\)$" --category Rust type summary add -F _ -e -x -h "^.*$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust @@ -45,5 +46,6 @@ type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::([a-z_]+::)+)Pa type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust type summary add -F lldb_lookup.StdSliceSummaryProvider -e -x -h "^ref(_mut)?\$ >" --category Rust -type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref(_mut)?\$ >" --category Rust +type summary add -F lldb_lookup.MSVCEnumSummaryProvider -e -x -h "^enum2\$<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^enum2\$<.+>::.*$" --category Rust type category enable Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 7be40068b90a..b05dd5162f09 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -3,6 +3,8 @@ import sys from lldb import ( SBData, SBError, + SBType, + SBTypeStaticField, SBValue, eBasicTypeLong, eBasicTypeUnsignedLong, @@ -325,6 +327,179 @@ class ClangEncodedEnumProvider: default_index = i return default_index +class MSVCEnumSyntheticProvider: + """ + Synthetic provider for sum-type enums on MSVC. For a detailed explanation of the internals, + see: + + https://github.com/rust-lang/rust/blob/master/compiler/rustc_codegen_llvm/src/debuginfo/metadata/enums/cpp_like.rs + """ + + __slots__ = ["valobj", "variant", "value"] + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): + self.valobj = valobj + self.variant: SBValue + self.value: SBValue + self.update() + + def update(self): + tag: SBValue = self.valobj.GetChildMemberWithName("tag") + + if tag.IsValid(): + tag: int = tag.GetValueAsUnsigned() + for child in self.valobj.GetNonSyntheticValue().children: + if not child.name.startswith("variant"): + continue + + variant_type: SBType = child.GetType() + exact: SBTypeStaticField = variant_type.GetStaticFieldWithName( + "DISCR_EXACT" + ) + + if exact.IsValid(): + discr: int = exact.GetConstantValue( + self.valobj.target + ).GetValueAsUnsigned() + if tag == discr: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + else: # if invalid, DISCR must be a range + begin: int = variant_type.GetStaticFieldWithName( + "DISCR_BEGIN" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + end: int = variant_type.GetStaticFieldWithName( + "DISCR_END" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + + # begin isn't necessarily smaller than end, so we must test for both cases + if begin < end: + if begin <= tag <= end: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + else: + if tag >= begin or tag <= end: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + else: # if invalid, tag is a 128 bit value + tag_lo: int = self.valobj.GetChildMemberWithName("tag128_lo").GetValueAsUnsigned() + tag_hi: int = self.valobj.GetChildMemberWithName("tag128_hi").GetValueAsUnsigned() + + tag: int = (tag_hi << 64) | tag_lo + + for child in self.valobj.GetNonSyntheticValue().children: + if not child.name.startswith("variant"): + continue + + variant_type: SBType = child.GetType() + exact_lo: SBTypeStaticField = variant_type.GetStaticFieldWithName( + "DISCR128_EXACT_LO" + ) + + if exact_lo.IsValid(): + exact_lo: int = exact_lo.GetConstantValue(self.valobj.target).GetValueAsUnsigned() + exact_hi: int = variant_type.GetStaticFieldWithName( + "DISCR128_EXACT_HI" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + + discr: int = (exact_hi << 64) | exact_lo + if tag == discr: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + else: # if invalid, DISCR must be a range + begin_lo: int = variant_type.GetStaticFieldWithName( + "DISCR128_BEGIN_LO" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + begin_hi: int = variant_type.GetStaticFieldWithName( + "DISCR128_BEGIN_HI" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + + end_lo: int = variant_type.GetStaticFieldWithName( + "DISCR128_END_LO" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + end_hi: int = variant_type.GetStaticFieldWithName( + "DISCR128_END_HI" + ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + + begin = (begin_hi << 64) | begin_lo + end = (end_hi << 64) | end_lo + + # begin isn't necessarily smaller than end, so we must test for both cases + if begin < end: + if begin <= tag <= end: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + else: + if tag >= begin or tag <= end: + self.variant = child + self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + return + + def num_children(self) -> int: + return self.value.GetNumChildren() + + def get_child_index(self, name: str) -> int: + return self.value.GetIndexOfChildWithName(name) + + def get_child_at_index(self, index: int) -> SBValue: + return self.value.GetChildAtIndex(index) + + def has_children(self) -> bool: + return self.value.MightHaveChildren() + + def get_type_name(self) -> str: + name = self.valobj.GetTypeName() + # remove "enum2$<", str.removeprefix() is python 3.9+ + name = name[7:] + + # MSVC misinterprets ">>" as a shift operator, so spaces are inserted by rust to + # avoid that + if name.endswith(" >"): + name = name[:-2] + elif name.endswith(">"): + name = name[:-1] + + return name + + +def MSVCEnumSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: + enum_synth = MSVCEnumSyntheticProvider(valobj.GetNonSyntheticValue(), _dict) + variant_names: SBType = valobj.target.FindFirstType( + f"{enum_synth.valobj.GetTypeName()}::VariantNames" + ) + name_idx = ( + enum_synth.variant.GetType() + .GetStaticFieldWithName("NAME") + .GetConstantValue(valobj.target) + .GetValueAsUnsigned() + ) + + name: str = variant_names.enum_members[name_idx].name + + if enum_synth.num_children() == 0: + return name + + child_name: str = enum_synth.value.GetChildAtIndex(0).name + if child_name == "0" or child_name == "__0": + # enum variant is a tuple struct + return name + TupleSummaryProvider(enum_synth.value, _dict) + else: + # enum variant is a regular struct + var_list = ( + str(enum_synth.value.GetNonSyntheticValue()).split("= ", 1)[1].splitlines() + ) + vars = [x.strip() for x in var_list if x not in ("{", "}")] + if vars[0][0] == "(": + vars[0] = vars[0][1:] + if vars[-1][-1] == ")": + vars[-1] = vars[-1][:-1] + + return f'{name}{{{", ".join(vars)}}}' + class TupleSyntheticProvider: """Pretty-printer for tuples and tuple enum variants""" From 009994a8499d1156b2d54429bfa2622c8140bf5b Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 21:21:44 -0600 Subject: [PATCH 006/255] organize lldb_commands --- src/etc/lldb_commands | 75 ++++++++++++++++++++++++++++--------------- 1 file changed, 50 insertions(+), 25 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index 24c485b35337..b2ec8aa23999 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -1,51 +1,76 @@ +# Std String type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)String$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust +# Std str type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?str$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust +# Array type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?\\[.+\\]$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?\\[.+\\]$" --category Rust +# Slice +## MSVC +type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref\$ >" --category Rust +type summary add -F lldb_lookup.StdSliceSummaryProvider -e -x -h "^ref(_mut)?\$ >" --category Rust +# OsString type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust +# Vec type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Vec<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Vec<.+>$" --category Rust +# VecDeque type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)VecDeque<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)VecDeque<.+>$" --category Rust +# BTreeSet type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)BTreeSet<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)BTreeSet<.+>$" --category Rust +# BTreeMap type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)BTreeMap<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)BTreeMap<.+>$" --category Rust +# HashMap type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::collections::([a-z_]+::)+)HashMap<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::collections::([a-z_]+::)+)HashMap<.+>$" --category Rust +# HashSet type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::collections::([a-z_]+::)+)HashSet<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::collections::([a-z_]+::)+)HashSet<.+>$" --category Rust +# Rc type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Rc<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Rc<.+>$" --category Rust +# Arc type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)Arc<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Arc<.+>$" --category Rust +# Cell type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)Cell<.+>$" --category Rust +type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)Cell<.+>$" --category Rust +# RefCell type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)Ref<.+>$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)RefMut<.+>$" --category Rust type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)RefCell<.+>$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)NonZero<.+>$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^core::num::([a-z_]+::)*NonZero.+$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::([a-z_]+::)+)PathBuf$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust -type synthetic add -l lldb_lookup.MSVCEnumSyntheticProvider -x "^enum2\$<.+>$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^enum2\$<.+>::.*$" --category Rust -type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref\$ >" --category Rust -type synthetic add -l lldb_lookup.MSVCTupleSyntheticProvider -x "^tuple\$<.+>$" --category Rust -type synthetic add -l lldb_lookup.synthetic_lookup -x "^\(.*\)$" --category Rust -type summary add -F _ -e -x -h "^.*$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?\\[.+\\]$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Vec<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)VecDeque<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)BTreeSet<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)BTreeMap<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::collections::([a-z_]+::)+)HashMap<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::collections::([a-z_]+::)+)HashSet<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Rc<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)Arc<.+>$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)Cell<.+>$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)Ref<.+>$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)RefMut<.+>$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)RefCell<.+>$" --category Rust +# NonZero +type synthetic add -l lldb_lookup.synthetic_lookup -x "^(core::([a-z_]+::)+)NonZero<.+>$" --category Rust +type synthetic add -l lldb_lookup.synthetic_lookup -x "^core::num::([a-z_]+::)*NonZero.+$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(core::([a-z_]+::)+)NonZero<.+>$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^core::num::([a-z_]+::)*NonZero.+$" --category Rust +# PathBuf +type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::([a-z_]+::)+)PathBuf$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(std::([a-z_]+::)+)PathBuf$" --category Rust +# Path +type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?(std::([a-z_]+::)+)Path$" --category Rust -type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust -type summary add -F lldb_lookup.StdSliceSummaryProvider -e -x -h "^ref(_mut)?\$ >" --category Rust +# Enum +## MSVC +type synthetic add -l lldb_lookup.MSVCEnumSyntheticProvider -x "^enum2\$<.+>$" --category Rust type summary add -F lldb_lookup.MSVCEnumSummaryProvider -e -x -h "^enum2\$<.+>$" --category Rust +## MSVC Variants +type synthetic add -l lldb_lookup.synthetic_lookup -x "^enum2\$<.+>::.*$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^enum2\$<.+>::.*$" --category Rust +# Tuple +type synthetic add -l lldb_lookup.synthetic_lookup -x "^\(.*\)$" --category Rust +## MSVC +type synthetic add -l lldb_lookup.MSVCTupleSyntheticProvider -x "^tuple\$<.+>$" --category Rust +type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust +# Forces test-compliant formatting to all other types +type summary add -F _ -e -x -h "^.*$" --category Rust type category enable Rust From 2b8ff7534a085271d3803cfd9401ef3ec9112563 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 21:47:27 -0600 Subject: [PATCH 007/255] add MSVC str providers --- src/etc/lldb_commands | 9 ++- src/etc/lldb_providers.py | 138 +++++++++++++++++++++++++++++--------- 2 files changed, 113 insertions(+), 34 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index b2ec8aa23999..e2c30acfc850 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -1,15 +1,20 @@ +# Forces test-compliant formatting to all other types +type summary add -F _ -e -x -h "^.*$" --category Rust # Std String type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)String$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust # Std str type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?str$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust +## MSVC +type synthetic add -l lldb_lookup.MSVCStrSyntheticProvider -x "^ref(_mut)?\$$" --category Rust +type summary add -F lldb_lookup.StdStrSummaryProvider -e -h -x "^ref(_mut)?\$$" --category Rust # Array type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?\\[.+\\]$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?\\[.+\\]$" --category Rust # Slice ## MSVC -type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref\$ >" --category Rust +type synthetic add -l lldb_lookup.MSVCStdSliceSyntheticProvider -x "^ref(_mut)?\$ >" --category Rust type summary add -F lldb_lookup.StdSliceSummaryProvider -e -x -h "^ref(_mut)?\$ >" --category Rust # OsString type synthetic add -l lldb_lookup.synthetic_lookup -x "^(std::ffi::([a-z_]+::)+)OsString$" --category Rust @@ -71,6 +76,4 @@ type synthetic add -l lldb_lookup.synthetic_lookup -x "^\(.*\)$" --category Rust ## MSVC type synthetic add -l lldb_lookup.MSVCTupleSyntheticProvider -x "^tuple\$<.+>$" --category Rust type summary add -F lldb_lookup.TupleSummaryProvider -e -x -h "^tuple\$<.+>$" --category Rust -# Forces test-compliant formatting to all other types -type summary add -F _ -e -x -h "^.*$" --category Rust type category enable Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index b05dd5162f09..b1bf6f9b06c2 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -266,6 +266,47 @@ class StructSyntheticProvider: return True +class MSVCStrSyntheticProvider: + __slots__ = ["valobj", "data_ptr", "length"] + + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): + self.valobj = valobj + self.update() + + def update(self): + self.data_ptr = self.valobj.GetChildMemberWithName("data_ptr") + self.length = self.valobj.GetChildMemberWithName("length").GetValueAsUnsigned() + + def has_children(self) -> bool: + return True + + def num_children(self) -> int: + return self.length + + def get_child_index(self, name: str) -> int: + index = name.lstrip("[").rstrip("]") + if index.isdigit(): + return int(index) + + return -1 + + def get_child_at_index(self, index: int) -> SBValue: + if not 0 <= index < self.length: + return None + start = self.data_ptr.GetValueAsUnsigned() + address = start + index + element = self.data_ptr.CreateValueFromAddress( + f"[{index}]", address, self.data_ptr.GetType().GetPointeeType() + ) + return element + + def get_type_name(self): + if self.valobj.GetTypeName().startswith("ref_mut"): + return "&mut str" + else: + return "&str" + + class ClangEncodedEnumProvider: """Pretty-printer for 'clang-encoded' enums support implemented in LLDB""" @@ -327,6 +368,7 @@ class ClangEncodedEnumProvider: default_index = i return default_index + class MSVCEnumSyntheticProvider: """ Synthetic provider for sum-type enums on MSVC. For a detailed explanation of the internals, @@ -336,6 +378,7 @@ class MSVCEnumSyntheticProvider: """ __slots__ = ["valobj", "variant", "value"] + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): self.valobj = valobj self.variant: SBValue @@ -362,30 +405,44 @@ class MSVCEnumSyntheticProvider: ).GetValueAsUnsigned() if tag == discr: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return else: # if invalid, DISCR must be a range - begin: int = variant_type.GetStaticFieldWithName( - "DISCR_BEGIN" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() - end: int = variant_type.GetStaticFieldWithName( - "DISCR_END" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + begin: int = ( + variant_type.GetStaticFieldWithName("DISCR_BEGIN") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) + end: int = ( + variant_type.GetStaticFieldWithName("DISCR_END") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) # begin isn't necessarily smaller than end, so we must test for both cases if begin < end: if begin <= tag <= end: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return else: if tag >= begin or tag <= end: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return else: # if invalid, tag is a 128 bit value - tag_lo: int = self.valobj.GetChildMemberWithName("tag128_lo").GetValueAsUnsigned() - tag_hi: int = self.valobj.GetChildMemberWithName("tag128_hi").GetValueAsUnsigned() + tag_lo: int = self.valobj.GetChildMemberWithName( + "tag128_lo" + ).GetValueAsUnsigned() + tag_hi: int = self.valobj.GetChildMemberWithName( + "tag128_hi" + ).GetValueAsUnsigned() tag: int = (tag_hi << 64) | tag_lo @@ -399,30 +456,44 @@ class MSVCEnumSyntheticProvider: ) if exact_lo.IsValid(): - exact_lo: int = exact_lo.GetConstantValue(self.valobj.target).GetValueAsUnsigned() - exact_hi: int = variant_type.GetStaticFieldWithName( - "DISCR128_EXACT_HI" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + exact_lo: int = exact_lo.GetConstantValue( + self.valobj.target + ).GetValueAsUnsigned() + exact_hi: int = ( + variant_type.GetStaticFieldWithName("DISCR128_EXACT_HI") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) discr: int = (exact_hi << 64) | exact_lo if tag == discr: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return else: # if invalid, DISCR must be a range - begin_lo: int = variant_type.GetStaticFieldWithName( - "DISCR128_BEGIN_LO" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() - begin_hi: int = variant_type.GetStaticFieldWithName( - "DISCR128_BEGIN_HI" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + begin_lo: int = ( + variant_type.GetStaticFieldWithName("DISCR128_BEGIN_LO") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) + begin_hi: int = ( + variant_type.GetStaticFieldWithName("DISCR128_BEGIN_HI") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) - end_lo: int = variant_type.GetStaticFieldWithName( - "DISCR128_END_LO" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() - end_hi: int = variant_type.GetStaticFieldWithName( - "DISCR128_END_HI" - ).GetConstantValue(self.valobj.target).GetValueAsUnsigned() + end_lo: int = ( + variant_type.GetStaticFieldWithName("DISCR128_END_LO") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) + end_hi: int = ( + variant_type.GetStaticFieldWithName("DISCR128_END_HI") + .GetConstantValue(self.valobj.target) + .GetValueAsUnsigned() + ) begin = (begin_hi << 64) | begin_lo end = (end_hi << 64) | end_lo @@ -431,12 +502,16 @@ class MSVCEnumSyntheticProvider: if begin < end: if begin <= tag <= end: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return else: if tag >= begin or tag <= end: self.variant = child - self.value = child.GetChildMemberWithName("value").GetSyntheticValue() + self.value = child.GetChildMemberWithName( + "value" + ).GetSyntheticValue() return def num_children(self) -> int: @@ -498,7 +573,7 @@ def MSVCEnumSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: if vars[-1][-1] == ")": vars[-1] = vars[-1][:-1] - return f'{name}{{{", ".join(vars)}}}' + return f"{name}{{{', '.join(vars)}}}" class TupleSyntheticProvider: @@ -681,6 +756,7 @@ class MSVCStdSliceSyntheticProvider(StdSliceSyntheticProvider): return "".join([ref, "[", name, "]"]) + def StdSliceSummaryProvider(valobj, dict): output = sequence_formatter("[", valobj, dict) output += "]" From 4f595334f5771b28d85c46f29859d2e48af270b5 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 22:02:45 -0600 Subject: [PATCH 008/255] add alternate inner type lookup for vec/string for missing template args --- src/etc/lldb_commands | 4 +- src/etc/lldb_providers.py | 89 ++++++++++++++++++++++++++++++++++++--- 2 files changed, 86 insertions(+), 7 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index e2c30acfc850..5f24d0da047e 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -1,8 +1,8 @@ # Forces test-compliant formatting to all other types type summary add -F _ -e -x -h "^.*$" --category Rust # Std String -type synthetic add -l lldb_lookup.synthetic_lookup -x "^(alloc::([a-z_]+::)+)String$" --category Rust -type summary add -F lldb_lookup.summary_lookup -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust +type synthetic add -l lldb_lookup.StdStringSyntheticProvider -x "^(alloc::([a-z_]+::)+)String$" --category Rust +type summary add -F lldb_lookup.StdStringSummaryProvider -e -x -h "^(alloc::([a-z_]+::)+)String$" --category Rust # Std str type synthetic add -l lldb_lookup.synthetic_lookup -x "^&(mut )?str$" --category Rust type summary add -F lldb_lookup.summary_lookup -e -x -h "^&(mut )?str$" --category Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index b1bf6f9b06c2..063db7abb3ca 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -9,6 +9,7 @@ from lldb import ( eBasicTypeLong, eBasicTypeUnsignedLong, eBasicTypeUnsignedChar, + eFormatChar, ) # from lldb.formatters import Logger @@ -143,11 +144,32 @@ def vec_to_string(vec: SBValue) -> str: ) -def StdStringSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: - # logger = Logger.Logger() - # logger >> "[StdStringSummaryProvider] for " + str(valobj.GetName()) - vec = valobj.GetChildAtIndex(0) - return '"%s"' % vec_to_string(vec) +def StdStringSummaryProvider(valobj, dict): + inner_vec = ( + valobj.GetNonSyntheticValue() + .GetChildMemberWithName("vec") + .GetNonSyntheticValue() + ) + + pointer = ( + inner_vec.GetChildMemberWithName("buf") + .GetChildMemberWithName("inner") + .GetChildMemberWithName("ptr") + .GetChildMemberWithName("pointer") + .GetChildMemberWithName("pointer") + ) + + length = inner_vec.GetChildMemberWithName("len").GetValueAsUnsigned() + + if length <= 0: + return "" + error = SBError() + process = pointer.GetProcess() + data = process.ReadMemory(pointer.GetValueAsUnsigned(), length, error) + if error.Success(): + return '"' + data.decode("utf8", "replace") + '"' + else: + raise Exception("ReadMemory error: %s", error.GetCString()) def StdOsStringSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: @@ -266,6 +288,48 @@ class StructSyntheticProvider: return True +class StdStringSyntheticProvider: + def __init__(self, valobj: SBValue, _dict: LLDBOpaque): + self.valobj = valobj + self.update() + + def update(self): + inner_vec = self.valobj.GetChildMemberWithName("vec").GetNonSyntheticValue() + self.data_ptr = ( + inner_vec.GetChildMemberWithName("buf") + .GetChildMemberWithName("inner") + .GetChildMemberWithName("ptr") + .GetChildMemberWithName("pointer") + .GetChildMemberWithName("pointer") + ) + self.length = inner_vec.GetChildMemberWithName("len").GetValueAsUnsigned() + self.element_type = self.data_ptr.GetType().GetPointeeType() + + def has_children(self) -> bool: + return True + + def num_children(self) -> int: + return self.length + + def get_child_index(self, name: str) -> int: + index = name.lstrip("[").rstrip("]") + if index.isdigit(): + return int(index) + + return -1 + + def get_child_at_index(self, index: int) -> SBValue: + if not 0 <= index < self.length: + return None + start = self.data_ptr.GetValueAsUnsigned() + address = start + index + element = self.data_ptr.CreateValueFromAddress( + f"[{index}]", address, self.element_type + ) + element.SetFormat(eFormatChar) + return element + + class MSVCStrSyntheticProvider: __slots__ = ["valobj", "data_ptr", "length"] @@ -699,6 +763,21 @@ class StdVecSyntheticProvider: ) self.element_type = self.valobj.GetType().GetTemplateArgumentType(0) + + if not self.element_type.IsValid(): + # annoyingly, vec's constituent type isn't guaranteed to be contained anywhere useful. + # Some functions have it, but those functions only exist in binary when they're used. + # that means it's time for string-based garbage. + + # acquire the first generic parameter via its type name + _, _, end = self.valobj.GetTypeName().partition("<") + element_name, _, _ = end.partition(",") + + # this works even for built-in rust types like `u32` because internally it's just a + # `typedef` i really REALLY wish there was a better way to do this, but at the moment + # LLDB flat out ignores template parameters due to piggybacking off of TypeSystemClang. + self.element_type = self.valobj.target.FindFirstType(element_name) + self.element_type_size = self.element_type.GetByteSize() def has_children(self) -> bool: From f725ad7f1d7485ee78feae1db03a37245682b7b0 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 10 Jan 2025 22:21:49 -0600 Subject: [PATCH 009/255] more robust tuple summary --- src/etc/lldb_providers.py | 16 +++++++++++++--- 1 file changed, 13 insertions(+), 3 deletions(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 063db7abb3ca..d928f1d0cf5c 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -1,4 +1,5 @@ import sys +from typing import List from lldb import ( SBData, @@ -710,9 +711,18 @@ class MSVCTupleSyntheticProvider: def TupleSummaryProvider(valobj: SBValue, _dict: LLDBOpaque): - output: str = sequence_formatter("(", valobj, dict) - output += ")" - return output + output: List[str] = [] + + for i in range(0, valobj.GetNumChildren()): + child: SBValue = valobj.GetChildAtIndex(i) + summary = child.summary + if summary is None: + summary = child.value + if summary is None: + summary = "{...}" + output.append(summary) + + return "(" + ", ".join(output) + ")" class StdVecSyntheticProvider: From 0bf0817dd50b2784c46660ce5778325053e2237d Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Sat, 11 Jan 2025 00:38:48 -0600 Subject: [PATCH 010/255] More robust sequence formatter --- src/etc/lldb_providers.py | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index d928f1d0cf5c..a1470c4c1a4e 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -238,8 +238,15 @@ def sequence_formatter(output: str, valobj: SBValue, _dict: LLDBOpaque): if len(output) > 32: long = True break + child: SBValue = valobj.GetChildAtIndex(i) - output += f"{child.value}, " + + summary = child.summary + if summary is None: + summary = child.value + if summary is None: + summary = "{...}" + output += f"{summary}, " if long: output = f"(len: {length}) " + output + "..." else: From a3adcd24db6b25b1bf85ef8c3314ee9664c7228c Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Sat, 11 Jan 2025 03:33:41 -0600 Subject: [PATCH 011/255] add alternate inner type lookup for hashmap/set when template args missing --- src/etc/lldb_providers.py | 28 +++++++++++++++++++++++++++- 1 file changed, 27 insertions(+), 1 deletion(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index a1470c4c1a4e..b380db81eeca 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -130,6 +130,23 @@ class EmptySyntheticProvider: def has_children(self) -> bool: return False +def get_template_args(type_name: str) -> List[str]: + params = [] + level = 0 + start = 0 + for i, c in enumerate(type_name): + if c == "<": + level += 1 + if level == 1: + start = i + 1 + elif c == ">": + level -= 1 + if level == 0: + params.append(type_name[start:i].strip()) + elif c == "," and level == 1: + params.append(type_name[start:i].strip()) + start = i + 1 + return params def SizeSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: return "size=" + str(valobj.GetNumChildren()) @@ -1050,7 +1067,16 @@ class StdHashMapSyntheticProvider: ctrl = inner_table.GetChildMemberWithName("ctrl").GetChildAtIndex(0) self.size = inner_table.GetChildMemberWithName("items").GetValueAsUnsigned() - self.pair_type = table.type.template_args[0] + + template_args = table.type.template_args + + if template_args is None: + type_name = table.GetTypeName() + args = get_template_args(type_name) + self.pair_type = self.valobj.target.FindFirstType(args[0]) + else: + self.pair_type = template_args[0] + if self.pair_type.IsTypedefType(): self.pair_type = self.pair_type.GetTypedefedType() self.pair_type_size = self.pair_type.GetByteSize() From 2be88129f9fc67071df8542035825d74197ac879 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Sat, 11 Jan 2025 03:40:07 -0600 Subject: [PATCH 012/255] tidy --- src/etc/lldb_providers.py | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index b380db81eeca..c0371699ed7b 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -130,6 +130,7 @@ class EmptySyntheticProvider: def has_children(self) -> bool: return False + def get_template_args(type_name: str) -> List[str]: params = [] level = 0 @@ -148,6 +149,7 @@ def get_template_args(type_name: str) -> List[str]: start = i + 1 return params + def SizeSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: return "size=" + str(valobj.GetNumChildren()) From e8c5e09e4f5df601943c2cfb20d3447a6caed043 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Sat, 11 Jan 2025 19:09:08 -0600 Subject: [PATCH 013/255] doc comment for get_template_args --- src/etc/lldb_providers.py | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index c0371699ed7b..3cfec8a6a29e 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -131,7 +131,18 @@ class EmptySyntheticProvider: return False -def get_template_args(type_name: str) -> List[str]: +def get_template_args(type_name: str) -> list[str]: + """ + Takes a type name `T, D>` and returns a list of its generic args + `["A", "tuple$", "D"]`. + + String-based replacement for LLDB's `SBType.template_args`, as LLDB is currently unable to + populate this field for targets with PDB debug info. Also useful for manually altering the type + name of generics (e.g. `Vec` -> `Vec<&str>`). + + Each element of the returned list can be looked up for its `SBType` value via + `SBTarget.FindFirstType()` + """ params = [] level = 0 start = 0 @@ -801,17 +812,7 @@ class StdVecSyntheticProvider: self.element_type = self.valobj.GetType().GetTemplateArgumentType(0) if not self.element_type.IsValid(): - # annoyingly, vec's constituent type isn't guaranteed to be contained anywhere useful. - # Some functions have it, but those functions only exist in binary when they're used. - # that means it's time for string-based garbage. - - # acquire the first generic parameter via its type name - _, _, end = self.valobj.GetTypeName().partition("<") - element_name, _, _ = end.partition(",") - - # this works even for built-in rust types like `u32` because internally it's just a - # `typedef` i really REALLY wish there was a better way to do this, but at the moment - # LLDB flat out ignores template parameters due to piggybacking off of TypeSystemClang. + element_name = get_template_args(self.valobj.GetTypeName())[0] self.element_type = self.valobj.target.FindFirstType(element_name) self.element_type_size = self.element_type.GetByteSize() From 0f12b8cf121365ba48703fda854e5b5b523e8938 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Sat, 18 Jan 2025 21:12:23 -0600 Subject: [PATCH 014/255] slots fix --- src/etc/lldb_providers.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 3cfec8a6a29e..319682a1c8c8 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -822,7 +822,7 @@ class StdVecSyntheticProvider: class StdSliceSyntheticProvider: - __slots__ = ["valobj", "length", "ptr", "element_type", "element_size"] + __slots__ = ["valobj", "length", "data_ptr", "element_type", "element_size"] def __init__(self, valobj: SBValue, _dict: LLDBOpaque): self.valobj = valobj From 80faf203515bf3be214ad3ffc019b55b026b1220 Mon Sep 17 00:00:00 2001 From: Joshua Wong Date: Sun, 26 Jan 2025 03:23:02 -0500 Subject: [PATCH 015/255] add test for Box::default's stack usage in debug mode --- tests/codegen/box-default-debug-copies.rs | 25 +++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 tests/codegen/box-default-debug-copies.rs diff --git a/tests/codegen/box-default-debug-copies.rs b/tests/codegen/box-default-debug-copies.rs new file mode 100644 index 000000000000..ed4e0c416b8d --- /dev/null +++ b/tests/codegen/box-default-debug-copies.rs @@ -0,0 +1,25 @@ +//@ compile-flags: -Copt-level=0 + +// Test to make sure that `>::default` does not create too many copies of `T` on the stack. +// in debug mode. This regressed in dd0620b86721ae8cae86736443acd3f72ba6fc32 to +// four `T` allocas. +// +// See https://github.com/rust-lang/rust/issues/136043 for more context. + +#![crate_type = "lib"] + +#[allow(dead_code)] +pub struct Thing([u8; 1000000]); + +impl Default for Thing { + fn default() -> Self { + Thing([0; 1000000]) + } +} + +// CHECK-COUNT-4: %{{.*}} = alloca {{.*}}1000000 +// CHECK-NOT: %{{.*}} = alloca {{.*}}1000000 +#[no_mangle] +pub fn box_default_single_copy() -> Box { + Box::default() +} From 97005678c38fd391c9b502d011cc3f3d4434a18a Mon Sep 17 00:00:00 2001 From: Joshua Wong Date: Sun, 26 Jan 2025 03:36:50 -0500 Subject: [PATCH 016/255] reduce `Box::default` stack copies in debug mode The `Box::new(T::default())` implementation of `Box::default` only had two stack copies in debug mode, compared to the current version, which has four. By avoiding creating any `MaybeUninit`'s and just writing `T` directly to the `Box` pointer, the stack usage in debug mode remains the same as the old version. --- library/alloc/src/boxed.rs | 15 ++++++++++++++- tests/codegen/box-default-debug-copies.rs | 5 ++++- 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs index 1b5e44a91346..8f43ebc38888 100644 --- a/library/alloc/src/boxed.rs +++ b/library/alloc/src/boxed.rs @@ -1730,7 +1730,20 @@ impl Default for Box { /// Creates a `Box`, with the `Default` value for T. #[inline] fn default() -> Self { - Box::write(Box::new_uninit(), T::default()) + let mut x: Box> = Box::new_uninit(); + unsafe { + // SAFETY: `x` is valid for writing and has the same layout as `T`. + // If `T::default()` panics, dropping `x` will just deallocate the Box as `MaybeUninit` + // does not have a destructor. + // + // We use `ptr::write` as `MaybeUninit::write` creates + // extra stack copies of `T` in debug mode. + // + // See https://github.com/rust-lang/rust/issues/136043 for more context. + ptr::write(&raw mut *x as *mut T, T::default()); + // SAFETY: `x` was just initialized above. + x.assume_init() + } } } diff --git a/tests/codegen/box-default-debug-copies.rs b/tests/codegen/box-default-debug-copies.rs index ed4e0c416b8d..06cc41b21c06 100644 --- a/tests/codegen/box-default-debug-copies.rs +++ b/tests/codegen/box-default-debug-copies.rs @@ -5,6 +5,9 @@ // four `T` allocas. // // See https://github.com/rust-lang/rust/issues/136043 for more context. +// +// FIXME: This test only wants to ensure that there are at most two allocas of `T` created, instead +// of checking for exactly two. #![crate_type = "lib"] @@ -17,7 +20,7 @@ impl Default for Thing { } } -// CHECK-COUNT-4: %{{.*}} = alloca {{.*}}1000000 +// CHECK-COUNT-2: %{{.*}} = alloca {{.*}}1000000 // CHECK-NOT: %{{.*}} = alloca {{.*}}1000000 #[no_mangle] pub fn box_default_single_copy() -> Box { From 5914fb779ff22ca2e58f78bace7176c5fccbd788 Mon Sep 17 00:00:00 2001 From: Urgau Date: Sun, 15 Dec 2024 16:17:05 +0100 Subject: [PATCH 017/255] Stabilize `num_midpoint_signed` feature --- library/core/src/num/mod.rs | 8 ++++---- library/coretests/tests/lib.rs | 1 - 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs index 6c1b568e231d..b479b8502a8e 100644 --- a/library/core/src/num/mod.rs +++ b/library/core/src/num/mod.rs @@ -163,14 +163,14 @@ macro_rules! midpoint_impl { /// # Examples /// /// ``` - /// #![feature(num_midpoint_signed)] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(4), 2);")] #[doc = concat!("assert_eq!((-1", stringify!($SelfT), ").midpoint(2), 0);")] #[doc = concat!("assert_eq!((-7", stringify!($SelfT), ").midpoint(0), -3);")] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(-7), -3);")] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(7), 3);")] /// ``` - #[unstable(feature = "num_midpoint_signed", issue = "110840")] + #[stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline] @@ -215,14 +215,14 @@ macro_rules! midpoint_impl { /// # Examples /// /// ``` - /// #![feature(num_midpoint_signed)] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(4), 2);")] #[doc = concat!("assert_eq!((-1", stringify!($SelfT), ").midpoint(2), 0);")] #[doc = concat!("assert_eq!((-7", stringify!($SelfT), ").midpoint(0), -3);")] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(-7), -3);")] #[doc = concat!("assert_eq!(0", stringify!($SelfT), ".midpoint(7), 3);")] /// ``` - #[unstable(feature = "num_midpoint_signed", issue = "110840")] + #[stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "num_midpoint_signed", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline] diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index 0607d508a48e..7353f12f4577 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -63,7 +63,6 @@ #![feature(maybe_uninit_write_slice)] #![feature(min_specialization)] #![feature(never_type)] -#![feature(num_midpoint_signed)] #![feature(numfmt)] #![feature(pattern)] #![feature(pointer_is_aligned_to)] From 9cb74323aa9e17d910166994b824a9797f77d7a3 Mon Sep 17 00:00:00 2001 From: Marijn Schouten Date: Thu, 30 Jan 2025 15:03:50 +0100 Subject: [PATCH 018/255] Improve instant docs --- library/std/src/time.rs | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/library/std/src/time.rs b/library/std/src/time.rs index 9f4f8a0d0880..797c5ff24c00 100644 --- a/library/std/src/time.rs +++ b/library/std/src/time.rs @@ -96,11 +96,17 @@ use crate::sys_common::{FromInner, IntoInner}; /// use std::time::{Instant, Duration}; /// /// let now = Instant::now(); -/// let max_seconds = u64::MAX / 1_000_000_000; -/// let duration = Duration::new(max_seconds, 0); +/// let days_per_10_millennia = 365_2425; +/// let solar_seconds_per_day = 60 * 60 * 24; +/// let millenium_in_solar_seconds = 31_556_952_000; +/// assert_eq!(millenium_in_solar_seconds, days_per_10_millennia * solar_seconds_per_day / 10); +/// +/// let duration = Duration::new(millenium_in_solar_seconds, 0); /// println!("{:?}", now + duration); /// ``` /// +/// For cross-platform code, you can comfortably use durations of up to around one hundred years. +/// /// # Underlying System calls /// /// The following system calls are [currently] being used by `now()` to find out From ca58e23ede760152eaa6c6fb7b880a991ade0fd0 Mon Sep 17 00:00:00 2001 From: Tommaso Allevi Date: Fri, 31 Jan 2025 11:01:37 +0100 Subject: [PATCH 019/255] Update fs.rs --- library/std/src/fs.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index a5b0111adfb4..5631c3e0156c 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -2505,6 +2505,7 @@ pub fn rename, Q: AsRef>(from: P, to: Q) -> io::Result<()> /// * `from` does not exist. /// * The current process does not have the permission rights to read /// `from` or write `to`. +/// * The parent folder of `to` doesn't exists /// /// # Examples /// From a90cb05da642607545560fb64dd057d3fedf2e97 Mon Sep 17 00:00:00 2001 From: Lukas Markeffsky <@> Date: Thu, 9 Jan 2025 17:34:58 +0000 Subject: [PATCH 020/255] interpret: adjust vtable validity check for higher-ranked types --- .../rustc_const_eval/src/interpret/cast.rs | 10 +++-- .../src/interpret/eval_context.rs | 40 +------------------ .../rustc_const_eval/src/interpret/traits.rs | 20 ++++------ .../validity/dyn-transmute-inner-binder.rs | 30 ++++++++++++++ .../dyn-transmute-inner-binder.stderr | 15 +++++++ src/tools/miri/tests/pass/dyn-upcast.rs | 30 ++++++++++++++ 6 files changed, 89 insertions(+), 56 deletions(-) create mode 100644 src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.rs create mode 100644 src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.stderr diff --git a/compiler/rustc_const_eval/src/interpret/cast.rs b/compiler/rustc_const_eval/src/interpret/cast.rs index e110c155da08..86fdfae1ffbf 100644 --- a/compiler/rustc_const_eval/src/interpret/cast.rs +++ b/compiler/rustc_const_eval/src/interpret/cast.rs @@ -430,10 +430,12 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { }; let erased_trait_ref = ty::ExistentialTraitRef::erase_self_ty(*self.tcx, upcast_trait_ref); - assert!(data_b.principal().is_some_and(|b| self.eq_in_param_env( - erased_trait_ref, - self.tcx.instantiate_bound_regions_with_erased(b) - ))); + assert_eq!( + data_b.principal().map(|b| { + self.tcx.normalize_erasing_late_bound_regions(self.typing_env, b) + }), + Some(erased_trait_ref), + ); } else { // In this case codegen would keep using the old vtable. We don't want to do // that as it has the wrong trait. The reason codegen can do this is that diff --git a/compiler/rustc_const_eval/src/interpret/eval_context.rs b/compiler/rustc_const_eval/src/interpret/eval_context.rs index 95a72d3cbc1d..242cf6484dd9 100644 --- a/compiler/rustc_const_eval/src/interpret/eval_context.rs +++ b/compiler/rustc_const_eval/src/interpret/eval_context.rs @@ -4,9 +4,6 @@ use either::{Left, Right}; use rustc_abi::{Align, HasDataLayout, Size, TargetDataLayout}; use rustc_errors::DiagCtxtHandle; use rustc_hir::def_id::DefId; -use rustc_infer::infer::TyCtxtInferExt; -use rustc_infer::infer::at::ToTrace; -use rustc_infer::traits::ObligationCause; use rustc_middle::mir::interpret::{ErrorHandled, InvalidMetaKind, ReportedErrorInfo}; use rustc_middle::query::TyCtxtAt; use rustc_middle::ty::layout::{ @@ -17,8 +14,7 @@ use rustc_middle::{mir, span_bug}; use rustc_session::Limit; use rustc_span::Span; use rustc_target::callconv::FnAbi; -use rustc_trait_selection::traits::ObligationCtxt; -use tracing::{debug, instrument, trace}; +use tracing::{debug, trace}; use super::{ Frame, FrameInfo, GlobalId, InterpErrorInfo, InterpErrorKind, InterpResult, MPlaceTy, Machine, @@ -323,40 +319,6 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { } } - /// Check if the two things are equal in the current param_env, using an infcx to get proper - /// equality checks. - #[instrument(level = "trace", skip(self), ret)] - pub(super) fn eq_in_param_env(&self, a: T, b: T) -> bool - where - T: PartialEq + TypeFoldable> + ToTrace<'tcx>, - { - // Fast path: compare directly. - if a == b { - return true; - } - // Slow path: spin up an inference context to check if these traits are sufficiently equal. - let (infcx, param_env) = self.tcx.infer_ctxt().build_with_typing_env(self.typing_env); - let ocx = ObligationCtxt::new(&infcx); - let cause = ObligationCause::dummy_with_span(self.cur_span()); - // equate the two trait refs after normalization - let a = ocx.normalize(&cause, param_env, a); - let b = ocx.normalize(&cause, param_env, b); - - if let Err(terr) = ocx.eq(&cause, param_env, a, b) { - trace!(?terr); - return false; - } - - let errors = ocx.select_all_or_error(); - if !errors.is_empty() { - trace!(?errors); - return false; - } - - // All good. - true - } - /// Walks up the callstack from the intrinsic's callsite, searching for the first callsite in a /// frame which is not `#[track_caller]`. This matches the `caller_location` intrinsic, /// and is primarily intended for the panic machinery. diff --git a/compiler/rustc_const_eval/src/interpret/traits.rs b/compiler/rustc_const_eval/src/interpret/traits.rs index 4cfaacebfcd0..a5029eea5a79 100644 --- a/compiler/rustc_const_eval/src/interpret/traits.rs +++ b/compiler/rustc_const_eval/src/interpret/traits.rs @@ -86,21 +86,15 @@ impl<'tcx, M: Machine<'tcx>> InterpCx<'tcx, M> { throw_ub!(InvalidVTableTrait { vtable_dyn_type, expected_dyn_type }); } + // This checks whether there is a subtyping relation between the predicates in either direction. + // For example: + // - casting between `dyn for<'a> Trait` and `dyn Trait` is OK + // - casting between `dyn Trait fn(&'a u8)>` and either of the above is UB for (a_pred, b_pred) in std::iter::zip(sorted_vtable, sorted_expected) { - let is_eq = match (a_pred.skip_binder(), b_pred.skip_binder()) { - ( - ty::ExistentialPredicate::Trait(a_data), - ty::ExistentialPredicate::Trait(b_data), - ) => self.eq_in_param_env(a_pred.rebind(a_data), b_pred.rebind(b_data)), + let a_pred = self.tcx.normalize_erasing_late_bound_regions(self.typing_env, a_pred); + let b_pred = self.tcx.normalize_erasing_late_bound_regions(self.typing_env, b_pred); - ( - ty::ExistentialPredicate::Projection(a_data), - ty::ExistentialPredicate::Projection(b_data), - ) => self.eq_in_param_env(a_pred.rebind(a_data), b_pred.rebind(b_data)), - - _ => false, - }; - if !is_eq { + if a_pred != b_pred { throw_ub!(InvalidVTableTrait { vtable_dyn_type, expected_dyn_type }); } } diff --git a/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.rs b/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.rs new file mode 100644 index 000000000000..7de4aef422a0 --- /dev/null +++ b/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.rs @@ -0,0 +1,30 @@ +// Test that transmuting from `&dyn Trait` to `&dyn Trait fn(&'a ())>` is UB. +// +// The vtable of `() as Trait` and `() as Trait fn(&'a ())>` can have +// different entries and, because in the former the entry for `foo` is vacant, this test will +// segfault at runtime. + +trait Trait { + fn foo(&self) + where + U: HigherRanked, + { + } +} +impl Trait for T {} + +trait HigherRanked {} +impl HigherRanked for for<'a> fn(&'a ()) {} + +// 2nd candidate is required so that selecting `(): Trait` will +// evaluate the candidates and fail the leak check instead of returning the +// only applicable candidate. +trait Unsatisfied {} +impl HigherRanked for T {} + +fn main() { + let x: &dyn Trait = &(); + let y: &dyn Trait fn(&'a ())> = unsafe { std::mem::transmute(x) }; + //~^ ERROR: wrong trait in wide pointer vtable + y.foo(); +} diff --git a/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.stderr b/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.stderr new file mode 100644 index 000000000000..cfdf279a6053 --- /dev/null +++ b/src/tools/miri/tests/fail/validity/dyn-transmute-inner-binder.stderr @@ -0,0 +1,15 @@ +error: Undefined Behavior: constructing invalid value: wrong trait in wide pointer vtable: expected `Trait fn(&'a ())>`, but encountered `Trait` + --> tests/fail/validity/dyn-transmute-inner-binder.rs:LL:CC + | +LL | let y: &dyn Trait fn(&'a ())> = unsafe { std::mem::transmute(x) }; + | ^^^^^^^^^^^^^^^^^^^^^^ constructing invalid value: wrong trait in wide pointer vtable: expected `Trait fn(&'a ())>`, but encountered `Trait` + | + = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior + = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information + = note: BACKTRACE: + = note: inside `main` at tests/fail/validity/dyn-transmute-inner-binder.rs:LL:CC + +note: some details are omitted, run with `MIRIFLAGS=-Zmiri-backtrace=full` for a verbose backtrace + +error: aborting due to 1 previous error + diff --git a/src/tools/miri/tests/pass/dyn-upcast.rs b/src/tools/miri/tests/pass/dyn-upcast.rs index f100c4d6a869..394e80aa2578 100644 --- a/src/tools/miri/tests/pass/dyn-upcast.rs +++ b/src/tools/miri/tests/pass/dyn-upcast.rs @@ -12,6 +12,7 @@ fn main() { drop_principal(); modulo_binder(); modulo_assoc(); + bidirectional_subtyping(); } fn vtable_nop_cast() { @@ -534,3 +535,32 @@ fn modulo_assoc() { (&() as &dyn Trait as &dyn Middle<()>).say_hello(&0); } + +fn bidirectional_subtyping() { + // Test that transmuting between subtypes of dyn traits is fine, even in the + // "wrong direction", i.e. going from a lower-ranked to a higher-ranked dyn trait. + // Note that compared to the `dyn-transmute-inner-binder` test, the `for` is on the + // *outside* here! + + trait Trait {} + impl Trait for T {} + + struct Wrapper(T); + + let x: &dyn Trait = &(); + let _y: &dyn for<'a> Trait = unsafe { std::mem::transmute(x) }; + + let x: &dyn for<'a> Trait = &(); + let _y: &dyn Trait = unsafe { std::mem::transmute(x) }; + + let x: &dyn Trait> = &(); + let _y: &dyn for<'a> Trait> = unsafe { std::mem::transmute(x) }; + + let x: &dyn for<'a> Trait> = &(); + let _y: &dyn Trait> = unsafe { std::mem::transmute(x) }; + + // This lowers to a ptr-to-ptr cast (which behaves like a transmute) + // and not an unsizing coercion: + let x: *const dyn for<'a> Trait<&'a ()> = &(); + let _y: *const Wrapper> = x as _; +} From 04e7a10af68e6174e42e9ce4a6e81f97722a6032 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Tue, 4 Feb 2025 15:15:28 +0100 Subject: [PATCH 021/255] intrinsics: unify rint, roundeven, nearbyint in a single round_ties_even intrinsic --- .../src/intrinsics/mod.rs | 16 +- .../rustc_codegen_gcc/src/intrinsic/mod.rs | 9 +- compiler/rustc_codegen_llvm/src/intrinsic.rs | 22 +-- .../rustc_hir_analysis/src/check/intrinsic.rs | 18 +- compiler/rustc_span/src/symbol.rs | 16 +- library/core/src/intrinsics/mod.rs | 185 +++++++----------- library/std/src/f128.rs | 2 +- library/std/src/f16.rs | 2 +- library/std/src/f32.rs | 2 +- library/std/src/f64.rs | 2 +- src/tools/miri/src/intrinsics/mod.rs | 16 +- tests/codegen/intrinsics/nearby.rs | 18 -- tests/ui/intrinsics/intrinsic-nearby.rs | 11 -- 13 files changed, 111 insertions(+), 208 deletions(-) delete mode 100644 tests/codegen/intrinsics/nearby.rs delete mode 100644 tests/ui/intrinsics/intrinsic-nearby.rs diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index 26f14532b458..4d9bed8652cb 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs @@ -340,14 +340,10 @@ fn codegen_float_intrinsic_call<'tcx>( sym::ceilf64 => ("ceil", 1, fx.tcx.types.f64, types::F64), sym::truncf32 => ("truncf", 1, fx.tcx.types.f32, types::F32), sym::truncf64 => ("trunc", 1, fx.tcx.types.f64, types::F64), - sym::rintf32 => ("rintf", 1, fx.tcx.types.f32, types::F32), - sym::rintf64 => ("rint", 1, fx.tcx.types.f64, types::F64), + sym::round_ties_even_f32 => ("rintf", 1, fx.tcx.types.f32, types::F32), + sym::round_ties_even_f64 => ("rint", 1, fx.tcx.types.f64, types::F64), sym::roundf32 => ("roundf", 1, fx.tcx.types.f32, types::F32), sym::roundf64 => ("round", 1, fx.tcx.types.f64, types::F64), - sym::roundevenf32 => ("roundevenf", 1, fx.tcx.types.f32, types::F32), - sym::roundevenf64 => ("roundeven", 1, fx.tcx.types.f64, types::F64), - sym::nearbyintf32 => ("nearbyintf", 1, fx.tcx.types.f32, types::F32), - sym::nearbyintf64 => ("nearbyint", 1, fx.tcx.types.f64, types::F64), sym::sinf32 => ("sinf", 1, fx.tcx.types.f32, types::F32), sym::sinf64 => ("sin", 1, fx.tcx.types.f64, types::F64), sym::cosf32 => ("cosf", 1, fx.tcx.types.f32, types::F32), @@ -399,8 +395,8 @@ fn codegen_float_intrinsic_call<'tcx>( | sym::ceilf64 | sym::truncf32 | sym::truncf64 - | sym::nearbyintf32 - | sym::nearbyintf64 + | sym::round_ties_even_f32 + | sym::round_ties_even_f64 | sym::sqrtf32 | sym::sqrtf64 => { let val = match intrinsic { @@ -408,7 +404,9 @@ fn codegen_float_intrinsic_call<'tcx>( sym::floorf32 | sym::floorf64 => fx.bcx.ins().floor(args[0]), sym::ceilf32 | sym::ceilf64 => fx.bcx.ins().ceil(args[0]), sym::truncf32 | sym::truncf64 => fx.bcx.ins().trunc(args[0]), - sym::nearbyintf32 | sym::nearbyintf64 => fx.bcx.ins().nearest(args[0]), + sym::round_ties_even_f32 | sym::round_ties_even_f64 => { + fx.bcx.ins().nearest(args[0]) + } sym::sqrtf32 | sym::sqrtf64 => fx.bcx.ins().sqrt(args[0]), _ => unreachable!(), }; diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs index 48606f5f91c0..83d0db0fb54a 100644 --- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs +++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs @@ -84,14 +84,11 @@ fn get_simple_intrinsic<'gcc, 'tcx>( sym::ceilf64 => "ceil", sym::truncf32 => "truncf", sym::truncf64 => "trunc", - sym::rintf32 => "rintf", - sym::rintf64 => "rint", - sym::nearbyintf32 => "nearbyintf", - sym::nearbyintf64 => "nearbyint", + // We match the LLVM backend and lower this to `rint`. + sym::round_ties_even_f32 => "rintf", + sym::round_ties_even_f64 => "rint", sym::roundf32 => "roundf", sym::roundf64 => "round", - sym::roundevenf32 => "roundevenf", - sym::roundevenf64 => "roundeven", sym::abort => "abort", _ => return None, }; diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index 43d6ccfcb4a2..464a6ce434d1 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -126,15 +126,14 @@ fn get_simple_intrinsic<'ll>( sym::truncf64 => "llvm.trunc.f64", sym::truncf128 => "llvm.trunc.f128", - sym::rintf16 => "llvm.rint.f16", - sym::rintf32 => "llvm.rint.f32", - sym::rintf64 => "llvm.rint.f64", - sym::rintf128 => "llvm.rint.f128", - - sym::nearbyintf16 => "llvm.nearbyint.f16", - sym::nearbyintf32 => "llvm.nearbyint.f32", - sym::nearbyintf64 => "llvm.nearbyint.f64", - sym::nearbyintf128 => "llvm.nearbyint.f128", + // We could use any of `rint`, `nearbyint`, or `roundeven` + // for this -- they are all identical in semantics when + // assuming the default FP environment. + // `rint` is what we used for $forever. + sym::round_ties_even_f16 => "llvm.rint.f16", + sym::round_ties_even_f32 => "llvm.rint.f32", + sym::round_ties_even_f64 => "llvm.rint.f64", + sym::round_ties_even_f128 => "llvm.rint.f128", sym::roundf16 => "llvm.round.f16", sym::roundf32 => "llvm.round.f32", @@ -143,11 +142,6 @@ fn get_simple_intrinsic<'ll>( sym::ptr_mask => "llvm.ptrmask", - sym::roundevenf16 => "llvm.roundeven.f16", - sym::roundevenf32 => "llvm.roundeven.f32", - sym::roundevenf64 => "llvm.roundeven.f64", - sym::roundevenf128 => "llvm.roundeven.f128", - _ => return None, }; Some(cx.get_intrinsic(llvm_name)) diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index cf3d48973042..acdd2facc24d 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -398,26 +398,16 @@ pub fn check_intrinsic_type( sym::truncf64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), sym::truncf128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), - sym::rintf16 => (0, 0, vec![tcx.types.f16], tcx.types.f16), - sym::rintf32 => (0, 0, vec![tcx.types.f32], tcx.types.f32), - sym::rintf64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), - sym::rintf128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), - - sym::nearbyintf16 => (0, 0, vec![tcx.types.f16], tcx.types.f16), - sym::nearbyintf32 => (0, 0, vec![tcx.types.f32], tcx.types.f32), - sym::nearbyintf64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), - sym::nearbyintf128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), + sym::round_ties_even_f16 => (0, 0, vec![tcx.types.f16], tcx.types.f16), + sym::round_ties_even_f32 => (0, 0, vec![tcx.types.f32], tcx.types.f32), + sym::round_ties_even_f64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), + sym::round_ties_even_f128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), sym::roundf16 => (0, 0, vec![tcx.types.f16], tcx.types.f16), sym::roundf32 => (0, 0, vec![tcx.types.f32], tcx.types.f32), sym::roundf64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), sym::roundf128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), - sym::roundevenf16 => (0, 0, vec![tcx.types.f16], tcx.types.f16), - sym::roundevenf32 => (0, 0, vec![tcx.types.f32], tcx.types.f32), - sym::roundevenf64 => (0, 0, vec![tcx.types.f64], tcx.types.f64), - sym::roundevenf128 => (0, 0, vec![tcx.types.f128], tcx.types.f128), - sym::volatile_load | sym::unaligned_volatile_load => { (1, 0, vec![Ty::new_imm_ptr(tcx, param(0))], param(0)) } diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 382b12638f43..0188327fd823 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -1337,10 +1337,6 @@ symbols! { native_link_modifiers_whole_archive, natvis_file, ne, - nearbyintf128, - nearbyintf16, - nearbyintf32, - nearbyintf64, needs_allocator, needs_drop, needs_panic_runtime, @@ -1655,20 +1651,16 @@ symbols! { return_position_impl_trait_in_trait, return_type_notation, rhs, - rintf128, - rintf16, - rintf32, - rintf64, riscv_target_feature, rlib, ropi, ropi_rwpi: "ropi-rwpi", rotate_left, rotate_right, - roundevenf128, - roundevenf16, - roundevenf32, - roundevenf64, + round_ties_even_f128, + round_ties_even_f16, + round_ties_even_f32, + round_ties_even_f64, roundf128, roundf16, roundf32, diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index bf07632d9928..320122a53e9d 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -2739,110 +2739,112 @@ pub unsafe fn truncf128(_x: f128) -> f128 { unreachable!() } -/// Returns the nearest integer to an `f16`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// May raise an inexact floating-point exception if the argument is not an integer. -/// However, Rust assumes floating-point exceptions cannot be observed, so these exceptions -/// cannot actually be utilized from Rust code. -/// In other words, this intrinsic is equivalent in behavior to `nearbyintf16` and `roundevenf16`. +/// Returns the nearest integer to an `f16`. Rounds half-way cases to the number with an even +/// least significant digit. /// /// The stabilized version of this intrinsic is /// [`f16::round_ties_even`](../../std/primitive.f16.html#method.round_ties_even) #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] -pub unsafe fn rintf16(_x: f16) -> f16 { +#[cfg(not(bootstrap))] +pub unsafe fn round_ties_even_f16(_x: f16) -> f16 { unreachable!() } -/// Returns the nearest integer to an `f32`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// May raise an inexact floating-point exception if the argument is not an integer. -/// However, Rust assumes floating-point exceptions cannot be observed, so these exceptions -/// cannot actually be utilized from Rust code. -/// In other words, this intrinsic is equivalent in behavior to `nearbyintf32` and `roundevenf32`. + +/// To be removed on next bootstrap bump. +#[cfg(bootstrap)] +pub unsafe fn round_ties_even_f16(x: f16) -> f16 { + #[rustc_intrinsic] + #[rustc_intrinsic_must_be_overridden] + #[rustc_nounwind] + unsafe fn rintf16(_x: f16) -> f16 { + unreachable!() + } + + // SAFETY: this intrinsic isn't actually unsafe + unsafe { rintf16(x) } +} + +/// Returns the nearest integer to an `f32`. Rounds half-way cases to the number with an even +/// least significant digit. /// /// The stabilized version of this intrinsic is /// [`f32::round_ties_even`](../../std/primitive.f32.html#method.round_ties_even) #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] -pub unsafe fn rintf32(_x: f32) -> f32 { +#[cfg(not(bootstrap))] +pub unsafe fn round_ties_even_f32(_x: f32) -> f32 { unreachable!() } -/// Returns the nearest integer to an `f64`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// May raise an inexact floating-point exception if the argument is not an integer. -/// However, Rust assumes floating-point exceptions cannot be observed, so these exceptions -/// cannot actually be utilized from Rust code. -/// In other words, this intrinsic is equivalent in behavior to `nearbyintf64` and `roundevenf64`. + +/// To be removed on next bootstrap bump. +#[cfg(bootstrap)] +pub unsafe fn round_ties_even_f32(x: f32) -> f32 { + #[rustc_intrinsic] + #[rustc_intrinsic_must_be_overridden] + #[rustc_nounwind] + unsafe fn rintf32(_x: f32) -> f32 { + unreachable!() + } + + // SAFETY: this intrinsic isn't actually unsafe + unsafe { rintf32(x) } +} + +/// Returns the nearest integer to an `f64`. Rounds half-way cases to the number with an even +/// least significant digit. /// /// The stabilized version of this intrinsic is /// [`f64::round_ties_even`](../../std/primitive.f64.html#method.round_ties_even) #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] -pub unsafe fn rintf64(_x: f64) -> f64 { +#[cfg(not(bootstrap))] +pub unsafe fn round_ties_even_f64(_x: f64) -> f64 { unreachable!() } -/// Returns the nearest integer to an `f128`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// May raise an inexact floating-point exception if the argument is not an integer. -/// However, Rust assumes floating-point exceptions cannot be observed, so these exceptions -/// cannot actually be utilized from Rust code. -/// In other words, this intrinsic is equivalent in behavior to `nearbyintf128` and `roundevenf128`. + +/// To be removed on next bootstrap bump. +#[cfg(bootstrap)] +pub unsafe fn round_ties_even_f64(x: f64) -> f64 { + #[rustc_intrinsic] + #[rustc_intrinsic_must_be_overridden] + #[rustc_nounwind] + unsafe fn rintf64(_x: f64) -> f64 { + unreachable!() + } + + // SAFETY: this intrinsic isn't actually unsafe + unsafe { rintf64(x) } +} + +/// Returns the nearest integer to an `f128`. Rounds half-way cases to the number with an even +/// least significant digit. /// /// The stabilized version of this intrinsic is /// [`f128::round_ties_even`](../../std/primitive.f128.html#method.round_ties_even) #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] -pub unsafe fn rintf128(_x: f128) -> f128 { +#[cfg(not(bootstrap))] +pub unsafe fn round_ties_even_f128(_x: f128) -> f128 { unreachable!() } -/// Returns the nearest integer to an `f16`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn nearbyintf16(_x: f16) -> f16 { - unreachable!() -} -/// Returns the nearest integer to an `f32`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn nearbyintf32(_x: f32) -> f32 { - unreachable!() -} -/// Returns the nearest integer to an `f64`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn nearbyintf64(_x: f64) -> f64 { - unreachable!() -} -/// Returns the nearest integer to an `f128`. Changing the rounding mode is not possible in Rust, -/// so this rounds half-way cases to the number with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn nearbyintf128(_x: f128) -> f128 { - unreachable!() +/// To be removed on next bootstrap bump. +#[cfg(bootstrap)] +pub unsafe fn round_ties_even_f128(x: f128) -> f128 { + #[rustc_intrinsic] + #[rustc_intrinsic_must_be_overridden] + #[rustc_nounwind] + unsafe fn rintf128(_x: f128) -> f128 { + unreachable!() + } + + // SAFETY: this intrinsic isn't actually unsafe + unsafe { rintf128(x) } } /// Returns the nearest integer to an `f16`. Rounds half-way cases away from zero. @@ -2886,47 +2888,6 @@ pub unsafe fn roundf128(_x: f128) -> f128 { unreachable!() } -/// Returns the nearest integer to an `f16`. Rounds half-way cases to the number -/// with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn roundevenf16(_x: f16) -> f16 { - unreachable!() -} -/// Returns the nearest integer to an `f32`. Rounds half-way cases to the number -/// with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn roundevenf32(_x: f32) -> f32 { - unreachable!() -} -/// Returns the nearest integer to an `f64`. Rounds half-way cases to the number -/// with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn roundevenf64(_x: f64) -> f64 { - unreachable!() -} -/// Returns the nearest integer to an `f128`. Rounds half-way cases to the number -/// with an even least significant digit. -/// -/// This intrinsic does not have a stable counterpart. -#[rustc_intrinsic] -#[rustc_intrinsic_must_be_overridden] -#[rustc_nounwind] -pub unsafe fn roundevenf128(_x: f128) -> f128 { - unreachable!() -} - /// Float addition that allows optimizations based on algebraic rules. /// May assume inputs are finite. /// diff --git a/library/std/src/f128.rs b/library/std/src/f128.rs index d65f5ed61cfb..615c4fd33484 100644 --- a/library/std/src/f128.rs +++ b/library/std/src/f128.rs @@ -129,7 +129,7 @@ impl f128 { #[unstable(feature = "f128", issue = "116909")] #[must_use = "method returns a new number and does not mutate the original value"] pub fn round_ties_even(self) -> f128 { - unsafe { intrinsics::rintf128(self) } + unsafe { intrinsics::round_ties_even_f128(self) } } /// Returns the integer part of `self`. diff --git a/library/std/src/f16.rs b/library/std/src/f16.rs index 5b0903bceabb..85b82b91fabc 100644 --- a/library/std/src/f16.rs +++ b/library/std/src/f16.rs @@ -129,7 +129,7 @@ impl f16 { #[unstable(feature = "f16", issue = "116909")] #[must_use = "method returns a new number and does not mutate the original value"] pub fn round_ties_even(self) -> f16 { - unsafe { intrinsics::rintf16(self) } + unsafe { intrinsics::round_ties_even_f16(self) } } /// Returns the integer part of `self`. diff --git a/library/std/src/f32.rs b/library/std/src/f32.rs index f9b6723788ae..da1f000278da 100644 --- a/library/std/src/f32.rs +++ b/library/std/src/f32.rs @@ -125,7 +125,7 @@ impl f32 { #[stable(feature = "round_ties_even", since = "1.77.0")] #[inline] pub fn round_ties_even(self) -> f32 { - unsafe { intrinsics::rintf32(self) } + unsafe { intrinsics::round_ties_even_f32(self) } } /// Returns the integer part of `self`. diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs index 0de55a15d48e..8a9f693a7a82 100644 --- a/library/std/src/f64.rs +++ b/library/std/src/f64.rs @@ -125,7 +125,7 @@ impl f64 { #[stable(feature = "round_ties_even", since = "1.77.0")] #[inline] pub fn round_ties_even(self) -> f64 { - unsafe { intrinsics::rintf64(self) } + unsafe { intrinsics::round_ties_even_f64(self) } } /// Returns the integer part of `self`. diff --git a/src/tools/miri/src/intrinsics/mod.rs b/src/tools/miri/src/intrinsics/mod.rs index bce78adcaea4..0faad0f7621a 100644 --- a/src/tools/miri/src/intrinsics/mod.rs +++ b/src/tools/miri/src/intrinsics/mod.rs @@ -145,7 +145,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { this.write_scalar(Scalar::from_bool(branch), dest)?; } - "floorf16" | "ceilf16" | "truncf16" | "roundf16" | "rintf16" => { + "floorf16" | "ceilf16" | "truncf16" | "roundf16" | "round_ties_even_f16" => { let [f] = check_arg_count(args)?; let f = this.read_scalar(f)?.to_f16()?; let mode = match intrinsic_name { @@ -153,14 +153,14 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { "ceilf16" => Round::TowardPositive, "truncf16" => Round::TowardZero, "roundf16" => Round::NearestTiesToAway, - "rintf16" => Round::NearestTiesToEven, + "round_ties_even_f16" => Round::NearestTiesToEven, _ => bug!(), }; let res = f.round_to_integral(mode).value; let res = this.adjust_nan(res, &[f]); this.write_scalar(res, dest)?; } - "floorf32" | "ceilf32" | "truncf32" | "roundf32" | "rintf32" => { + "floorf32" | "ceilf32" | "truncf32" | "roundf32" | "round_ties_even_f32" => { let [f] = check_arg_count(args)?; let f = this.read_scalar(f)?.to_f32()?; let mode = match intrinsic_name { @@ -168,14 +168,14 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { "ceilf32" => Round::TowardPositive, "truncf32" => Round::TowardZero, "roundf32" => Round::NearestTiesToAway, - "rintf32" => Round::NearestTiesToEven, + "round_ties_even_f32" => Round::NearestTiesToEven, _ => bug!(), }; let res = f.round_to_integral(mode).value; let res = this.adjust_nan(res, &[f]); this.write_scalar(res, dest)?; } - "floorf64" | "ceilf64" | "truncf64" | "roundf64" | "rintf64" => { + "floorf64" | "ceilf64" | "truncf64" | "roundf64" | "round_ties_even_f64" => { let [f] = check_arg_count(args)?; let f = this.read_scalar(f)?.to_f64()?; let mode = match intrinsic_name { @@ -183,14 +183,14 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { "ceilf64" => Round::TowardPositive, "truncf64" => Round::TowardZero, "roundf64" => Round::NearestTiesToAway, - "rintf64" => Round::NearestTiesToEven, + "round_ties_even_f64" => Round::NearestTiesToEven, _ => bug!(), }; let res = f.round_to_integral(mode).value; let res = this.adjust_nan(res, &[f]); this.write_scalar(res, dest)?; } - "floorf128" | "ceilf128" | "truncf128" | "roundf128" | "rintf128" => { + "floorf128" | "ceilf128" | "truncf128" | "roundf128" | "round_ties_even_f128" => { let [f] = check_arg_count(args)?; let f = this.read_scalar(f)?.to_f128()?; let mode = match intrinsic_name { @@ -198,7 +198,7 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> { "ceilf128" => Round::TowardPositive, "truncf128" => Round::TowardZero, "roundf128" => Round::NearestTiesToAway, - "rintf128" => Round::NearestTiesToEven, + "round_ties_even_f128" => Round::NearestTiesToEven, _ => bug!(), }; let res = f.round_to_integral(mode).value; diff --git a/tests/codegen/intrinsics/nearby.rs b/tests/codegen/intrinsics/nearby.rs deleted file mode 100644 index 520fe2f1886e..000000000000 --- a/tests/codegen/intrinsics/nearby.rs +++ /dev/null @@ -1,18 +0,0 @@ -#![crate_type = "lib"] -#![feature(core_intrinsics)] - -use std::intrinsics; - -// CHECK-LABEL: @nearbyintf32 -#[no_mangle] -pub unsafe fn nearbyintf32(a: f32) -> f32 { - // CHECK: llvm.nearbyint.f32 - intrinsics::nearbyintf32(a) -} - -// CHECK-LABEL: @nearbyintf64 -#[no_mangle] -pub unsafe fn nearbyintf64(a: f64) -> f64 { - // CHECK: llvm.nearbyint.f64 - intrinsics::nearbyintf64(a) -} diff --git a/tests/ui/intrinsics/intrinsic-nearby.rs b/tests/ui/intrinsics/intrinsic-nearby.rs deleted file mode 100644 index 990ecfc2b70d..000000000000 --- a/tests/ui/intrinsics/intrinsic-nearby.rs +++ /dev/null @@ -1,11 +0,0 @@ -//@ run-pass -#![feature(core_intrinsics)] - -use std::intrinsics::*; - -fn main() { - unsafe { - assert_eq!(nearbyintf32(5.234f32), 5f32); - assert_eq!(nearbyintf64(6.777f64), 7f64); - } -} From 0819c1638c6fdb41884d7aadd1528611b2f09d7b Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Fri, 7 Feb 2025 20:41:57 -0600 Subject: [PATCH 022/255] Fix import/attribute errors related to `SBTypeStaticField` --- src/etc/lldb_providers.py | 56 ++++++++++++++++++++++++++++++--------- 1 file changed, 43 insertions(+), 13 deletions(-) diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 319682a1c8c8..573cc50a8685 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -1,18 +1,19 @@ +from __future__ import annotations import sys -from typing import List +from typing import List, TYPE_CHECKING from lldb import ( SBData, SBError, - SBType, - SBTypeStaticField, - SBValue, eBasicTypeLong, eBasicTypeUnsignedLong, eBasicTypeUnsignedChar, eFormatChar, ) +if TYPE_CHECKING: + from lldb import SBValue, SBType, SBTypeStaticField + # from lldb.formatters import Logger #################################################################################################### @@ -497,9 +498,18 @@ class MSVCEnumSyntheticProvider: continue variant_type: SBType = child.GetType() - exact: SBTypeStaticField = variant_type.GetStaticFieldWithName( - "DISCR_EXACT" - ) + try: + exact: SBTypeStaticField = variant_type.GetStaticFieldWithName( + "DISCR_EXACT" + ) + except AttributeError: + # LLDB versions prior to 19.0.0 do not have the `SBTypeGetStaticField` API. + # With current DI generation there's not a great way to provide a "best effort" + # evaluation either, so we just return the object itself with no further + # attempts to inspect the type information + self.variant = self.valobj + self.value = self.valobj + return if exact.IsValid(): discr: int = exact.GetConstantValue( @@ -648,12 +658,32 @@ def MSVCEnumSummaryProvider(valobj: SBValue, _dict: LLDBOpaque) -> str: variant_names: SBType = valobj.target.FindFirstType( f"{enum_synth.valobj.GetTypeName()}::VariantNames" ) - name_idx = ( - enum_synth.variant.GetType() - .GetStaticFieldWithName("NAME") - .GetConstantValue(valobj.target) - .GetValueAsUnsigned() - ) + try: + name_idx = ( + enum_synth.variant.GetType() + .GetStaticFieldWithName("NAME") + .GetConstantValue(valobj.target) + .GetValueAsUnsigned() + ) + except AttributeError: + # LLDB versions prior to 19 do not have the `SBTypeGetStaticField` API, and have no way + # to determine the value based on the tag field. + tag: SBValue = valobj.GetChildMemberWithName("tag") + + if tag.IsValid(): + discr: int = tag.GetValueAsUnsigned() + return "".join(["{tag = ", str(tag.unsigned), "}"]) + else: + tag_lo: int = valobj.GetChildMemberWithName( + "tag128_lo" + ).GetValueAsUnsigned() + tag_hi: int = valobj.GetChildMemberWithName( + "tag128_hi" + ).GetValueAsUnsigned() + + discr: int = (tag_hi << 64) | tag_lo + + return "".join(["{tag = ", str(discr), "}"]) name: str = variant_names.enum_members[name_idx].name From 6fe8b8d4a0c359b467918f62c774241dd4a63157 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 9 Feb 2025 19:09:43 +0000 Subject: [PATCH 023/255] Remove lifetime_capture_rules_2024 feature --- compiler/rustc_feature/src/removed.rs | 2 ++ compiler/rustc_feature/src/unstable.rs | 2 -- .../src/collect/resolve_bound_vars.rs | 33 +++++++------------ .../rustc_lint/src/impl_trait_overcaptures.rs | 6 ++-- tests/ui/impl-trait/implicit-capture-late.rs | 6 ++-- .../impl-trait/implicit-capture-late.stderr | 6 ++-- .../precise-capturing/higher-ranked.rs | 3 +- .../impl-trait/precise-capturing/outlives.rs | 3 +- tests/ui/impl-trait/variance.e2024.stderr | 8 ++--- tests/ui/impl-trait/variance.new.stderr | 26 --------------- tests/ui/impl-trait/variance.old.stderr | 8 ++--- tests/ui/impl-trait/variance.rs | 10 ++---- 12 files changed, 35 insertions(+), 78 deletions(-) delete mode 100644 tests/ui/impl-trait/variance.new.stderr diff --git a/compiler/rustc_feature/src/removed.rs b/compiler/rustc_feature/src/removed.rs index 2fb0c8e43448..60e7788f2c05 100644 --- a/compiler/rustc_feature/src/removed.rs +++ b/compiler/rustc_feature/src/removed.rs @@ -135,6 +135,8 @@ declare_features! ( Some("removed as it caused some confusion and discussion was inactive for years")), /// Lazily evaluate constants. This allows constants to depend on type parameters. (removed, lazy_normalization_consts, "1.46.0", Some(72219), Some("superseded by `generic_const_exprs`")), + /// Changes `impl Trait` to capture all lifetimes in scope. + (removed, lifetime_capture_rules_2024, "1.76.0", None, Some("unnecessary -- use edition 2024 instead")), /// Allows using the `#[link_args]` attribute. (removed, link_args, "1.53.0", Some(29596), Some("removed in favor of using `-C link-arg=ARG` on command line, \ diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index 3a2e810dc6af..b0d1ba917054 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -214,8 +214,6 @@ declare_features! ( (internal, intrinsics, "1.0.0", None), /// Allows using `#[lang = ".."]` attribute for linking items to special compiler logic. (internal, lang_items, "1.0.0", None), - /// Changes `impl Trait` to capture all lifetimes in scope. - (unstable, lifetime_capture_rules_2024, "1.76.0", None), /// Allows `#[link(..., cfg(..))]`; perma-unstable per #37406 (internal, link_cfg, "1.14.0", None), /// Allows using `?Trait` trait bounds in more contexts. diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 76006354717e..739a50db3fc8 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -305,21 +305,15 @@ fn generic_param_def_as_bound_arg(param: &ty::GenericParamDef) -> ty::BoundVaria } /// Whether this opaque always captures lifetimes in scope. -/// Right now, this is all RPITIT and TAITs, and when `lifetime_capture_rules_2024` -/// is enabled. We don't check the span of the edition, since this is done -/// on a per-opaque basis to account for nested opaques. -fn opaque_captures_all_in_scope_lifetimes<'tcx>( - tcx: TyCtxt<'tcx>, - opaque: &'tcx hir::OpaqueTy<'tcx>, -) -> bool { +/// Right now, this is all RPITIT and TAITs, and when the opaque +/// is coming from a span corresponding to edition 2024. +fn opaque_captures_all_in_scope_lifetimes<'tcx>(opaque: &'tcx hir::OpaqueTy<'tcx>) -> bool { match opaque.origin { // if the opaque has the `use<...>` syntax, the user is telling us that they only want // to account for those lifetimes, so do not try to be clever. _ if opaque.bounds.iter().any(|bound| matches!(bound, hir::GenericBound::Use(..))) => false, hir::OpaqueTyOrigin::AsyncFn { .. } | hir::OpaqueTyOrigin::TyAlias { .. } => true, - _ if tcx.features().lifetime_capture_rules_2024() || opaque.span.at_least_rust_2024() => { - true - } + _ if opaque.span.at_least_rust_2024() => true, hir::OpaqueTyOrigin::FnReturn { in_trait_or_impl, .. } => in_trait_or_impl.is_some(), } } @@ -519,8 +513,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { fn visit_opaque_ty(&mut self, opaque: &'tcx rustc_hir::OpaqueTy<'tcx>) { let captures = RefCell::new(FxIndexMap::default()); - let capture_all_in_scope_lifetimes = - opaque_captures_all_in_scope_lifetimes(self.tcx, opaque); + let capture_all_in_scope_lifetimes = opaque_captures_all_in_scope_lifetimes(opaque); if capture_all_in_scope_lifetimes { let lifetime_ident = |def_id: LocalDefId| { let name = self.tcx.item_name(def_id.to_def_id()); @@ -2273,7 +2266,7 @@ fn is_late_bound_map( } let mut appears_in_output = - AllCollector { tcx, has_fully_capturing_opaque: false, regions: Default::default() }; + AllCollector { has_fully_capturing_opaque: false, regions: Default::default() }; intravisit::walk_fn_ret_ty(&mut appears_in_output, &sig.decl.output); if appears_in_output.has_fully_capturing_opaque { appears_in_output.regions.extend(generics.params.iter().map(|param| param.def_id)); @@ -2286,7 +2279,7 @@ fn is_late_bound_map( // Subtle point: because we disallow nested bindings, we can just // ignore binders here and scrape up all names we see. let mut appears_in_where_clause = - AllCollector { tcx, has_fully_capturing_opaque: true, regions: Default::default() }; + AllCollector { has_fully_capturing_opaque: true, regions: Default::default() }; appears_in_where_clause.visit_generics(generics); debug!(?appears_in_where_clause.regions); @@ -2452,23 +2445,21 @@ fn is_late_bound_map( } } - struct AllCollector<'tcx> { - tcx: TyCtxt<'tcx>, + struct AllCollector { has_fully_capturing_opaque: bool, regions: FxHashSet, } - impl<'v> Visitor<'v> for AllCollector<'v> { - fn visit_lifetime(&mut self, lifetime_ref: &'v hir::Lifetime) { + impl<'tcx> Visitor<'tcx> for AllCollector { + fn visit_lifetime(&mut self, lifetime_ref: &'tcx hir::Lifetime) { if let hir::LifetimeName::Param(def_id) = lifetime_ref.res { self.regions.insert(def_id); } } - fn visit_opaque_ty(&mut self, opaque: &'v hir::OpaqueTy<'v>) { + fn visit_opaque_ty(&mut self, opaque: &'tcx hir::OpaqueTy<'tcx>) { if !self.has_fully_capturing_opaque { - self.has_fully_capturing_opaque = - opaque_captures_all_in_scope_lifetimes(self.tcx, opaque); + self.has_fully_capturing_opaque = opaque_captures_all_in_scope_lifetimes(opaque); } intravisit::walk_opaque_ty(self, opaque); } diff --git a/compiler/rustc_lint/src/impl_trait_overcaptures.rs b/compiler/rustc_lint/src/impl_trait_overcaptures.rs index d251b4b7459e..a83f50938349 100644 --- a/compiler/rustc_lint/src/impl_trait_overcaptures.rs +++ b/compiler/rustc_lint/src/impl_trait_overcaptures.rs @@ -86,8 +86,7 @@ declare_lint! { /// /// ### Example /// - /// ```rust,compile_fail - /// # #![feature(lifetime_capture_rules_2024)] + /// ```rust,edition2024,compile_fail /// # #![deny(impl_trait_redundant_captures)] /// fn test<'a>(x: &'a i32) -> impl Sized + use<'a> { x } /// ``` @@ -268,8 +267,7 @@ where && parent == self.parent_def_id { let opaque_span = self.tcx.def_span(opaque_def_id); - let new_capture_rules = opaque_span.at_least_rust_2024() - || self.tcx.features().lifetime_capture_rules_2024(); + let new_capture_rules = opaque_span.at_least_rust_2024(); if !new_capture_rules && !opaque.bounds.iter().any(|bound| matches!(bound, hir::GenericBound::Use(..))) { diff --git a/tests/ui/impl-trait/implicit-capture-late.rs b/tests/ui/impl-trait/implicit-capture-late.rs index 986620b101bd..13cbcd66f8d8 100644 --- a/tests/ui/impl-trait/implicit-capture-late.rs +++ b/tests/ui/impl-trait/implicit-capture-late.rs @@ -1,13 +1,13 @@ -//@ known-bug: #117647 +//@ edition: 2024 -#![feature(lifetime_capture_rules_2024)] #![feature(rustc_attrs)] #![allow(internal_features)] #![rustc_variance_of_opaques] use std::ops::Deref; -fn foo(x: Vec) -> Box Deref> { +fn foo(x: Vec) -> Box Deref> { //~ ['a: o] + //~^ ERROR cannot capture higher-ranked lifetime Box::new(x) } diff --git a/tests/ui/impl-trait/implicit-capture-late.stderr b/tests/ui/impl-trait/implicit-capture-late.stderr index 3adf78322d2e..085d3eaedd48 100644 --- a/tests/ui/impl-trait/implicit-capture-late.stderr +++ b/tests/ui/impl-trait/implicit-capture-late.stderr @@ -1,17 +1,17 @@ error[E0657]: `impl Trait` cannot capture higher-ranked lifetime from `dyn` type - --> $DIR/implicit-capture-late.rs:10:55 + --> $DIR/implicit-capture-late.rs:9:55 | LL | fn foo(x: Vec) -> Box Deref> { | ^^^^^^^^^^^ `impl Trait` implicitly captures all lifetimes in scope | note: lifetime declared here - --> $DIR/implicit-capture-late.rs:10:36 + --> $DIR/implicit-capture-late.rs:9:36 | LL | fn foo(x: Vec) -> Box Deref> { | ^^ error: ['a: o] - --> $DIR/implicit-capture-late.rs:10:55 + --> $DIR/implicit-capture-late.rs:9:55 | LL | fn foo(x: Vec) -> Box Deref> { | ^^^^^^^^^^^ diff --git a/tests/ui/impl-trait/precise-capturing/higher-ranked.rs b/tests/ui/impl-trait/precise-capturing/higher-ranked.rs index 3dc8523e9635..925f03589e89 100644 --- a/tests/ui/impl-trait/precise-capturing/higher-ranked.rs +++ b/tests/ui/impl-trait/precise-capturing/higher-ranked.rs @@ -1,9 +1,8 @@ //@ check-pass +//@ edition: 2024 // Show how precise captures allow us to skip capturing a higher-ranked lifetime -#![feature(lifetime_capture_rules_2024)] - trait Trait<'a> { type Item; } diff --git a/tests/ui/impl-trait/precise-capturing/outlives.rs b/tests/ui/impl-trait/precise-capturing/outlives.rs index f86a61be1e07..45e46848eea7 100644 --- a/tests/ui/impl-trait/precise-capturing/outlives.rs +++ b/tests/ui/impl-trait/precise-capturing/outlives.rs @@ -1,9 +1,8 @@ //@ check-pass +//@ edition: 2024 // Show that precise captures allow us to skip a lifetime param for outlives -#![feature(lifetime_capture_rules_2024)] - fn hello<'a: 'a, 'b: 'b>() -> impl Sized + use<'a> { } fn outlives<'a, T: 'a>(_: T) {} diff --git a/tests/ui/impl-trait/variance.e2024.stderr b/tests/ui/impl-trait/variance.e2024.stderr index 361a165da66f..adbe8b91e866 100644 --- a/tests/ui/impl-trait/variance.e2024.stderr +++ b/tests/ui/impl-trait/variance.e2024.stderr @@ -1,23 +1,23 @@ error: ['a: *, 'a: o] - --> $DIR/variance.rs:13:36 + --> $DIR/variance.rs:11:36 | LL | fn not_captured_early<'a: 'a>() -> impl Sized {} | ^^^^^^^^^^ error: ['a: *, 'a: o] - --> $DIR/variance.rs:18:32 + --> $DIR/variance.rs:15:32 | LL | fn captured_early<'a: 'a>() -> impl Sized + Captures<'a> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: ['a: o] - --> $DIR/variance.rs:20:40 + --> $DIR/variance.rs:17:40 | LL | fn not_captured_late<'a>(_: &'a ()) -> impl Sized {} | ^^^^^^^^^^ error: ['a: o] - --> $DIR/variance.rs:25:36 + --> $DIR/variance.rs:21:36 | LL | fn captured_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/impl-trait/variance.new.stderr b/tests/ui/impl-trait/variance.new.stderr deleted file mode 100644 index 361a165da66f..000000000000 --- a/tests/ui/impl-trait/variance.new.stderr +++ /dev/null @@ -1,26 +0,0 @@ -error: ['a: *, 'a: o] - --> $DIR/variance.rs:13:36 - | -LL | fn not_captured_early<'a: 'a>() -> impl Sized {} - | ^^^^^^^^^^ - -error: ['a: *, 'a: o] - --> $DIR/variance.rs:18:32 - | -LL | fn captured_early<'a: 'a>() -> impl Sized + Captures<'a> {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: ['a: o] - --> $DIR/variance.rs:20:40 - | -LL | fn not_captured_late<'a>(_: &'a ()) -> impl Sized {} - | ^^^^^^^^^^ - -error: ['a: o] - --> $DIR/variance.rs:25:36 - | -LL | fn captured_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^ - -error: aborting due to 4 previous errors - diff --git a/tests/ui/impl-trait/variance.old.stderr b/tests/ui/impl-trait/variance.old.stderr index 578d6fd14cd2..57ffa7cde31c 100644 --- a/tests/ui/impl-trait/variance.old.stderr +++ b/tests/ui/impl-trait/variance.old.stderr @@ -1,23 +1,23 @@ error: ['a: *] - --> $DIR/variance.rs:13:36 + --> $DIR/variance.rs:11:36 | LL | fn not_captured_early<'a: 'a>() -> impl Sized {} | ^^^^^^^^^^ error: ['a: *, 'a: o] - --> $DIR/variance.rs:18:32 + --> $DIR/variance.rs:15:32 | LL | fn captured_early<'a: 'a>() -> impl Sized + Captures<'a> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ error: [] - --> $DIR/variance.rs:20:40 + --> $DIR/variance.rs:17:40 | LL | fn not_captured_late<'a>(_: &'a ()) -> impl Sized {} | ^^^^^^^^^^ error: ['a: o] - --> $DIR/variance.rs:25:36 + --> $DIR/variance.rs:21:36 | LL | fn captured_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {} | ^^^^^^^^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/impl-trait/variance.rs b/tests/ui/impl-trait/variance.rs index 1e359f033ff5..bde3a886a4d3 100644 --- a/tests/ui/impl-trait/variance.rs +++ b/tests/ui/impl-trait/variance.rs @@ -1,8 +1,6 @@ -//@ revisions: old new e2024 +//@ revisions: old e2024 //@[e2024] edition: 2024 -#![cfg_attr(new, feature(lifetime_capture_rules_2024))] - #![feature(rustc_attrs)] #![allow(internal_features)] #![rustc_variance_of_opaques] @@ -12,15 +10,13 @@ impl Captures<'_> for T {} fn not_captured_early<'a: 'a>() -> impl Sized {} //[old]~^ ['a: *] -//[new]~^^ ['a: *, 'a: o] -//[e2024]~^^^ ['a: *, 'a: o] +//[e2024]~^^ ['a: *, 'a: o] fn captured_early<'a: 'a>() -> impl Sized + Captures<'a> {} //~ ['a: *, 'a: o] fn not_captured_late<'a>(_: &'a ()) -> impl Sized {} //[old]~^ [] -//[new]~^^ ['a: o] -//[e2024]~^^^ ['a: o] +//[e2024]~^^ ['a: o] fn captured_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {} //~ ['a: o] From 82af73dd4c58cd6bec5fb44cf02f7ac96b1ed48b Mon Sep 17 00:00:00 2001 From: Christopher Berner Date: Sun, 9 Feb 2025 13:54:50 -0800 Subject: [PATCH 024/255] Stabilize file_lock --- library/std/src/fs.rs | 15 +++++---------- 1 file changed, 5 insertions(+), 10 deletions(-) diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index 0871a9e22d38..509b9388af5d 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -660,7 +660,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_lock)] /// use std::fs::File; /// /// fn main() -> std::io::Result<()> { @@ -669,7 +668,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_lock", issue = "130994")] + #[stable(feature = "file_lock", since = "CURRENT_RUSTC_VERSION")] pub fn lock(&self) -> io::Result<()> { self.inner.lock() } @@ -708,7 +707,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_lock)] /// use std::fs::File; /// /// fn main() -> std::io::Result<()> { @@ -717,7 +715,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_lock", issue = "130994")] + #[stable(feature = "file_lock", since = "CURRENT_RUSTC_VERSION")] pub fn lock_shared(&self) -> io::Result<()> { self.inner.lock_shared() } @@ -763,7 +761,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_lock)] /// use std::fs::File; /// /// fn main() -> std::io::Result<()> { @@ -772,7 +769,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_lock", issue = "130994")] + #[stable(feature = "file_lock", since = "CURRENT_RUSTC_VERSION")] pub fn try_lock(&self) -> io::Result { self.inner.try_lock() } @@ -815,7 +812,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_lock)] /// use std::fs::File; /// /// fn main() -> std::io::Result<()> { @@ -824,7 +820,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_lock", issue = "130994")] + #[stable(feature = "file_lock", since = "CURRENT_RUSTC_VERSION")] pub fn try_lock_shared(&self) -> io::Result { self.inner.try_lock_shared() } @@ -849,7 +845,6 @@ impl File { /// # Examples /// /// ```no_run - /// #![feature(file_lock)] /// use std::fs::File; /// /// fn main() -> std::io::Result<()> { @@ -859,7 +854,7 @@ impl File { /// Ok(()) /// } /// ``` - #[unstable(feature = "file_lock", issue = "130994")] + #[stable(feature = "file_lock", since = "CURRENT_RUSTC_VERSION")] pub fn unlock(&self) -> io::Result<()> { self.inner.unlock() } From 5573cd320cd80f6ed9d44aa6129570380280f0fd Mon Sep 17 00:00:00 2001 From: Chris Denton Date: Mon, 10 Feb 2025 12:16:27 +0000 Subject: [PATCH 025/255] Prevent /msys64/bin from being prepended to PATH --- src/ci/scripts/install-mingw.sh | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/ci/scripts/install-mingw.sh b/src/ci/scripts/install-mingw.sh index 91eab2e7a081..c8c501e646a9 100755 --- a/src/ci/scripts/install-mingw.sh +++ b/src/ci/scripts/install-mingw.sh @@ -32,6 +32,12 @@ if isWindows && isKnownToBeMingwBuild; then ;; esac + # Stop /msys64/bin from being prepended to PATH by adding the bin directory manually. + # Note that this intentionally uses a Windows style path instead of the msys2 path to + # avoid being auto-translated into `/usr/bin`, which will not have the desired effect. + msys2Path="c:/msys64" + ciCommandAddPath "${msys2Path}/usr/bin" + mingw_dir="mingw${bits}" curl -o mingw.7z "${MIRRORS_BASE}/${mingw_archive}" From ec8ec41d9ee8b03bbddf815217452e37656e2d0b Mon Sep 17 00:00:00 2001 From: Chris Denton Date: Mon, 10 Feb 2025 15:06:41 +0000 Subject: [PATCH 026/255] Print the environment a second time --- .github/workflows/ci.yml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0934e42b277e..c6f3fcada08e 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -173,6 +173,11 @@ jobs: - name: ensure the stable version number is correct run: src/ci/scripts/verify-stable-version-number.sh + # Show the environment just before we run the build + # This makes it easier to diagnose problems with the above install scripts. + - name: show the current environment + run: src/ci/scripts/dump-environment.sh + - name: run the build # Redirect stderr to stdout to avoid reordering the two streams in the GHA logs. run: src/ci/scripts/run-build-from-ci.sh 2>&1 From c930bb2cfbe0ddd99188deed68f6a1a4d22fff3e Mon Sep 17 00:00:00 2001 From: Yotam Ofek Date: Sun, 2 Feb 2025 13:01:10 +0000 Subject: [PATCH 027/255] rustc_codegen_ssa: use slice patterns instead of len-check+indexing --- compiler/rustc_codegen_ssa/src/back/write.rs | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index ce2161a07ebf..85e592d59591 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -572,10 +572,10 @@ fn produce_final_output_artifacts( }; let copy_if_one_unit = |output_type: OutputType, keep_numbered: bool| { - if compiled_modules.modules.len() == 1 { + if let [module] = &compiled_modules.modules[..] { // 1) Only one codegen unit. In this case it's no difficulty // to copy `foo.0.x` to `foo.x`. - let module_name = Some(&compiled_modules.modules[0].name[..]); + let module_name = Some(&module.name[..]); let path = crate_output.temp_path(output_type, module_name); let output = crate_output.path(output_type); if !output_type.is_text_output() && output.is_tty() { @@ -707,8 +707,8 @@ fn produce_final_output_artifacts( } if sess.opts.json_artifact_notifications { - if compiled_modules.modules.len() == 1 { - compiled_modules.modules[0].for_each_output(|_path, ty| { + if let [module] = &compiled_modules.modules[..] { + module.for_each_output(|_path, ty| { if sess.opts.output_types.contains_key(&ty) { let descr = ty.shorthand(); // for single cgu file is renamed to drop cgu specific suffix @@ -864,7 +864,7 @@ pub(crate) fn compute_per_cgu_lto_type( // require LTO so the request for LTO is always unconditionally // passed down to the backend, but we don't actually want to do // anything about it yet until we've got a final product. - let is_rlib = sess_crate_types.len() == 1 && sess_crate_types[0] == CrateType::Rlib; + let is_rlib = matches!(sess_crate_types, [CrateType::Rlib]); match sess_lto { Lto::ThinLocal if !linker_does_lto && !is_allocator => ComputedLtoType::Thin, From 9e5e6a9d0fc95d7f5a22ca8da0816d407977c674 Mon Sep 17 00:00:00 2001 From: Yotam Ofek Date: Sun, 2 Feb 2025 13:04:38 +0000 Subject: [PATCH 028/255] rustc_codegen_ssa: cleanup nested `if`s and a needless `match` --- compiler/rustc_codegen_ssa/src/back/link.rs | 7 ++-- compiler/rustc_codegen_ssa/src/back/write.rs | 5 +-- .../rustc_codegen_ssa/src/codegen_attrs.rs | 35 ++++++++----------- compiler/rustc_codegen_ssa/src/mir/block.rs | 5 +-- 4 files changed, 24 insertions(+), 28 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 105a4cb81f0d..c592cf347b57 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -626,10 +626,9 @@ fn link_staticlib( let mut all_rust_dylibs = vec![]; for &cnum in crates { - match fmts.get(cnum) { - Some(&Linkage::Dynamic) => {} - _ => continue, - } + let Some(Linkage::Dynamic) = fmts.get(cnum) else { + continue; + }; let crate_name = codegen_results.crate_info.crate_name[&cnum]; let used_crate_source = &codegen_results.crate_info.used_crate_source[&cnum]; if let Some((path, _)) = &used_crate_source.dylib { diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index 85e592d59591..6be7d6fdf841 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -1537,8 +1537,9 @@ fn start_executing_work( // Spin up what work we can, only doing this while we've got available // parallelism slots and work left to spawn. if codegen_state != Aborted { - while !work_items.is_empty() && running_with_own_token < tokens.len() { - let (item, _) = work_items.pop().unwrap(); + while running_with_own_token < tokens.len() + && let Some((item, _)) = work_items.pop() + { spawn_work( &cgcx, &mut llvm_start_time, diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 1d8f61806f56..a9ec8dba6d56 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -655,25 +655,20 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { // llvm/llvm-project#70563). if !codegen_fn_attrs.target_features.is_empty() && matches!(codegen_fn_attrs.inline, InlineAttr::Always) + && let Some(span) = inline_span { - if let Some(span) = inline_span { - tcx.dcx().span_err(span, "cannot use `#[inline(always)]` with `#[target_feature]`"); - } + tcx.dcx().span_err(span, "cannot use `#[inline(always)]` with `#[target_feature]`"); } - if !codegen_fn_attrs.no_sanitize.is_empty() && codegen_fn_attrs.inline.always() { - if let (Some(no_sanitize_span), Some(inline_span)) = (no_sanitize_span, inline_span) { - let hir_id = tcx.local_def_id_to_hir_id(did); - tcx.node_span_lint( - lint::builtin::INLINE_NO_SANITIZE, - hir_id, - no_sanitize_span, - |lint| { - lint.primary_message("`no_sanitize` will have no effect after inlining"); - lint.span_note(inline_span, "inlining requested here"); - }, - ) - } + if !codegen_fn_attrs.no_sanitize.is_empty() + && codegen_fn_attrs.inline.always() + && let (Some(no_sanitize_span), Some(inline_span)) = (no_sanitize_span, inline_span) + { + let hir_id = tcx.local_def_id_to_hir_id(did); + tcx.node_span_lint(lint::builtin::INLINE_NO_SANITIZE, hir_id, no_sanitize_span, |lint| { + lint.primary_message("`no_sanitize` will have no effect after inlining"); + lint.span_note(inline_span, "inlining requested here"); + }) } // Weak lang items have the same semantics as "std internal" symbols in the @@ -703,10 +698,10 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { // Any linkage to LLVM intrinsics for now forcibly marks them all as never // unwinds since LLVM sometimes can't handle codegen which `invoke`s // intrinsic functions. - if let Some(name) = &codegen_fn_attrs.link_name { - if name.as_str().starts_with("llvm.") { - codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; - } + if let Some(name) = &codegen_fn_attrs.link_name + && name.as_str().starts_with("llvm.") + { + codegen_fn_attrs.flags |= CodegenFnAttrFlags::NEVER_UNWIND; } if let Some(features) = check_tied_features( diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index 8c571558717e..1edc6a514859 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -990,8 +990,9 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { }); // Split the rust-call tupled arguments off. - let (first_args, untuple) = if abi == ExternAbi::RustCall && !args.is_empty() { - let (tup, args) = args.split_last().unwrap(); + let (first_args, untuple) = if abi == ExternAbi::RustCall + && let Some((tup, args)) = args.split_last() + { (args, Some(tup)) } else { (args, None) From a82178564184c167954472f0079cf8773ee0b485 Mon Sep 17 00:00:00 2001 From: Yotam Ofek Date: Sun, 2 Feb 2025 13:08:51 +0000 Subject: [PATCH 029/255] rustc_codegen_ssa: simplify test for incompatible dependency formats thanks @kadiwa4 --- compiler/rustc_codegen_ssa/src/back/link.rs | 25 +++++++++------------ 1 file changed, 10 insertions(+), 15 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index c592cf347b57..6e30c6c14516 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -244,22 +244,17 @@ pub fn each_linked_rlib( fmts } else { - for combination in info.dependency_formats.iter().combinations(2) { - let (ty1, list1) = &combination[0]; - let (ty2, list2) = &combination[1]; - if list1 != list2 { - return Err(errors::LinkRlibError::IncompatibleDependencyFormats { - ty1: format!("{ty1:?}"), - ty2: format!("{ty2:?}"), - list1: format!("{list1:?}"), - list2: format!("{list2:?}"), - }); - } + let mut dep_formats = info.dependency_formats.iter(); + let (ty1, list1) = dep_formats.next().ok_or(errors::LinkRlibError::MissingFormat)?; + if let Some((ty2, list2)) = dep_formats.find(|(_, list2)| list1 != *list2) { + return Err(errors::LinkRlibError::IncompatibleDependencyFormats { + ty1: format!("{ty1:?}"), + ty2: format!("{ty2:?}"), + list1: format!("{list1:?}"), + list2: format!("{list2:?}"), + }); } - if info.dependency_formats.is_empty() { - return Err(errors::LinkRlibError::MissingFormat); - } - info.dependency_formats.first().unwrap().1 + list1 }; let used_dep_crates = info.used_crates.iter(); From 73d5fe153be5e34f58886afbb801e35fd476b125 Mon Sep 17 00:00:00 2001 From: Yotam Ofek Date: Sun, 2 Feb 2025 13:09:03 +0000 Subject: [PATCH 030/255] rustc_codegen_ssa: cleanup codegen attrs --- .../rustc_codegen_ssa/src/codegen_attrs.rs | 118 +++++++++--------- 1 file changed, 56 insertions(+), 62 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index a9ec8dba6d56..8aa5c54f1e21 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -1,7 +1,6 @@ use std::str::FromStr; use rustc_abi::ExternAbi; -use rustc_ast::attr::list_contains_name; use rustc_ast::expand::autodiff_attrs::{ AutoDiffAttrs, DiffActivity, DiffMode, valid_input_activity, valid_ret_activity, }; @@ -385,24 +384,20 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { let segments = set.path.segments.iter().map(|x| x.ident.name).collect::>(); match segments.as_slice() { - [sym::arm, sym::a32] | [sym::arm, sym::t32] => { - if !tcx.sess.target.has_thumb_interworking { - struct_span_code_err!( - tcx.dcx(), - attr.span, - E0779, - "target does not support `#[instruction_set]`" - ) - .emit(); - None - } else if segments[1] == sym::a32 { - Some(InstructionSetAttr::ArmA32) - } else if segments[1] == sym::t32 { - Some(InstructionSetAttr::ArmT32) - } else { - unreachable!() - } + [sym::arm, sym::a32 | sym::t32] + if !tcx.sess.target.has_thumb_interworking => + { + struct_span_code_err!( + tcx.dcx(), + attr.span, + E0779, + "target does not support `#[instruction_set]`" + ) + .emit(); + None } + [sym::arm, sym::a32] => Some(InstructionSetAttr::ArmA32), + [sym::arm, sym::t32] => Some(InstructionSetAttr::ArmT32), _ => { struct_span_code_err!( tcx.dcx(), @@ -443,7 +438,7 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { && let Some((sym::align, literal)) = item.singleton_lit_list() { rustc_attr_parsing::parse_alignment(&literal.kind) - .map_err(|msg| { + .inspect_err(|msg| { struct_span_code_err!( tcx.dcx(), literal.span, @@ -544,25 +539,27 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { } if attr.is_word() { - InlineAttr::Hint - } else if let Some(ref items) = attr.meta_item_list() { - inline_span = Some(attr.span); - if items.len() != 1 { - struct_span_code_err!(tcx.dcx(), attr.span, E0534, "expected one argument").emit(); - InlineAttr::None - } else if list_contains_name(items, sym::always) { - InlineAttr::Always - } else if list_contains_name(items, sym::never) { - InlineAttr::Never - } else { - struct_span_code_err!(tcx.dcx(), items[0].span(), E0535, "invalid argument") - .with_help("valid inline arguments are `always` and `never`") - .emit(); + return InlineAttr::Hint; + } + let Some(ref items) = attr.meta_item_list() else { + return ia; + }; - InlineAttr::None - } + inline_span = Some(attr.span); + let [item] = &items[..] else { + struct_span_code_err!(tcx.dcx(), attr.span, E0534, "expected one argument").emit(); + return InlineAttr::None; + }; + if item.has_name(sym::always) { + InlineAttr::Always + } else if item.has_name(sym::never) { + InlineAttr::Never } else { - ia + struct_span_code_err!(tcx.dcx(), item.span(), E0535, "invalid argument") + .with_help("valid inline arguments are `always` and `never`") + .emit(); + + InlineAttr::None } }); codegen_fn_attrs.inline = attrs.iter().fold(codegen_fn_attrs.inline, |ia, attr| { @@ -594,23 +591,25 @@ fn codegen_fn_attrs(tcx: TyCtxt<'_>, did: LocalDefId) -> CodegenFnAttrs { let err = |sp, s| struct_span_code_err!(tcx.dcx(), sp, E0722, "{}", s).emit(); if attr.is_word() { err(attr.span, "expected one argument"); - ia - } else if let Some(ref items) = attr.meta_item_list() { - inline_span = Some(attr.span); - if items.len() != 1 { - err(attr.span, "expected one argument"); - OptimizeAttr::Default - } else if list_contains_name(items, sym::size) { - OptimizeAttr::Size - } else if list_contains_name(items, sym::speed) { - OptimizeAttr::Speed - } else if list_contains_name(items, sym::none) { - OptimizeAttr::DoNotOptimize - } else { - err(items[0].span(), "invalid argument"); - OptimizeAttr::Default - } + return ia; + } + let Some(ref items) = attr.meta_item_list() else { + return OptimizeAttr::Default; + }; + + inline_span = Some(attr.span); + let [item] = &items[..] else { + err(attr.span, "expected one argument"); + return OptimizeAttr::Default; + }; + if item.has_name(sym::size) { + OptimizeAttr::Size + } else if item.has_name(sym::speed) { + OptimizeAttr::Speed + } else if item.has_name(sym::none) { + OptimizeAttr::DoNotOptimize } else { + err(item.span(), "invalid argument"); OptimizeAttr::Default } }); @@ -762,18 +761,13 @@ fn should_inherit_track_caller(tcx: TyCtxt<'_>, def_id: DefId) -> bool { fn check_link_ordinal(tcx: TyCtxt<'_>, attr: &hir::Attribute) -> Option { use rustc_ast::{LitIntType, LitKind, MetaItemLit}; - let meta_item_list = attr.meta_item_list(); - let meta_item_list = meta_item_list.as_deref(); - let sole_meta_list = match meta_item_list { - Some([item]) => item.lit(), - Some(_) => { - tcx.dcx().emit_err(errors::InvalidLinkOrdinalNargs { span: attr.span }); - return None; - } - _ => None, + let meta_item_list = attr.meta_item_list()?; + let [sole_meta_list] = &meta_item_list[..] else { + tcx.dcx().emit_err(errors::InvalidLinkOrdinalNargs { span: attr.span }); + return None; }; if let Some(MetaItemLit { kind: LitKind::Int(ordinal, LitIntType::Unsuffixed), .. }) = - sole_meta_list + sole_meta_list.lit() { // According to the table at // https://docs.microsoft.com/en-us/windows/win32/debug/pe-format#import-header, the From d2ed8cf6619764e2a0af8a691c4ccb8c034b1e57 Mon Sep 17 00:00:00 2001 From: Kevin Reid Date: Mon, 27 Jan 2025 09:34:56 -0800 Subject: [PATCH 031/255] Optionally add type names to `TypeId`s. This feature is intended to provide expensive but thorough help for developers who have an unexpected `TypeId` value and need to determine what type it actually is. It causes `impl Debug for TypeId` to print the type name in addition to the opaque ID hash, and in order to do so, adds a name field to `TypeId`. The cost of this is the increased size of `TypeId` and the need to store type names in the binary; therefore, it is an optional feature. It may be enabled via `cargo -Zbuild-std -Zbuild-std-features=debug_typeid`. (Note that `-Zbuild-std-features` disables default features which you may wish to reenable in addition; see .) Example usage and output: ``` fn main() { use std::any::{Any, TypeId}; dbg!(TypeId::of::(), drop::.type_id()); } ``` ``` TypeId::of::() = TypeId(0x763d199bccd319899208909ed1a860c6 = usize) drop::.type_id() = TypeId(0xe6a34bd13f8c92dd47806da07b8cca9a = core::mem::drop) ``` Also added feature declarations for the existing `debug_refcell` feature so it is usable from the `rust.std-features` option of `config.toml`. --- library/core/Cargo.toml | 2 ++ library/core/src/any.rs | 20 +++++++++++++++++--- library/coretests/tests/any.rs | 8 ++++++++ library/std/Cargo.toml | 7 +++++++ library/sysroot/Cargo.toml | 4 +++- 5 files changed, 37 insertions(+), 4 deletions(-) diff --git a/library/core/Cargo.toml b/library/core/Cargo.toml index b7c6db6c78dd..e49d978a3678 100644 --- a/library/core/Cargo.toml +++ b/library/core/Cargo.toml @@ -23,6 +23,8 @@ optimize_for_size = [] # Make `RefCell` store additional debugging information, which is printed out when # a borrow error occurs debug_refcell = [] +# Make `TypeId` store a reference to the name of the type, so that it can print that name. +debug_typeid = [] [lints.rust.unexpected_cfgs] level = "warn" diff --git a/library/core/src/any.rs b/library/core/src/any.rs index 17d945559278..3565cb4a3adc 100644 --- a/library/core/src/any.rs +++ b/library/core/src/any.rs @@ -616,6 +616,8 @@ pub struct TypeId { // We avoid using `u128` because that imposes higher alignment requirements on many platforms. // See issue #115620 for more information. t: (u64, u64), + #[cfg(feature = "debug_typeid")] + name: &'static str, } #[stable(feature = "rust1", since = "1.0.0")] @@ -647,10 +649,14 @@ impl TypeId { #[rustc_const_unstable(feature = "const_type_id", issue = "77125")] pub const fn of() -> TypeId { let t: u128 = intrinsics::type_id::(); - let t1 = (t >> 64) as u64; let t2 = t as u64; - TypeId { t: (t1, t2) } + + TypeId { + t: (t1, t2), + #[cfg(feature = "debug_typeid")] + name: type_name::(), + } } fn as_u128(self) -> u128 { @@ -681,7 +687,15 @@ impl hash::Hash for TypeId { #[stable(feature = "rust1", since = "1.0.0")] impl fmt::Debug for TypeId { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> { - write!(f, "TypeId({:#034x})", self.as_u128()) + #[cfg(feature = "debug_typeid")] + { + write!(f, "TypeId({:#034x} = {})", self.as_u128(), self.name)?; + } + #[cfg(not(feature = "debug_typeid"))] + { + write!(f, "TypeId({:#034x})", self.as_u128())?; + } + Ok(()) } } diff --git a/library/coretests/tests/any.rs b/library/coretests/tests/any.rs index 25002617d0bb..117ef0042380 100644 --- a/library/coretests/tests/any.rs +++ b/library/coretests/tests/any.rs @@ -118,6 +118,14 @@ fn any_unsized() { is_any::<[i32]>(); } +#[cfg(feature = "debug_typeid")] +#[test] +fn debug_typeid_includes_name() { + let type_id = TypeId::of::<[usize; 2]>(); + let debug_str = format!("{type_id:?}"); + assert!(debug_str.ends_with("= [usize; 2])"), "{debug_str:?} did not match"); +} + #[test] fn distinct_type_names() { // https://github.com/rust-lang/rust/issues/84666 diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 9eab75b06961..1d964cab087b 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -109,6 +109,13 @@ panic_immediate_abort = [ # Choose algorithms that are optimized for binary size instead of runtime performance optimize_for_size = ["core/optimize_for_size", "alloc/optimize_for_size"] +# Make `RefCell` store additional debugging information, which is printed out when +# a borrow error occurs +debug_refcell = ["core/debug_refcell"] +# Make `TypeId` store a reference to the name of the type, so that it can print that name. +debug_typeid = ["core/debug_typeid"] + + # Enable std_detect default features for stdarch/crates/std_detect: # https://github.com/rust-lang/stdarch/blob/master/crates/std_detect/Cargo.toml std_detect_file_io = ["std_detect/std_detect_file_io"] diff --git a/library/sysroot/Cargo.toml b/library/sysroot/Cargo.toml index aa6c3dc32e2b..6ed2756e526d 100644 --- a/library/sysroot/Cargo.toml +++ b/library/sysroot/Cargo.toml @@ -19,11 +19,13 @@ compiler-builtins-mem = ["std/compiler-builtins-mem"] compiler-builtins-no-asm = ["std/compiler-builtins-no-asm"] compiler-builtins-no-f16-f128 = ["std/compiler-builtins-no-f16-f128"] compiler-builtins-mangled-names = ["std/compiler-builtins-mangled-names"] +debug_refcell = ["std/debug_refcell"] +debug_typeid = ["std/debug_typeid"] llvm-libunwind = ["std/llvm-libunwind"] system-llvm-libunwind = ["std/system-llvm-libunwind"] +optimize_for_size = ["std/optimize_for_size"] panic-unwind = ["std/panic_unwind"] panic_immediate_abort = ["std/panic_immediate_abort"] -optimize_for_size = ["std/optimize_for_size"] profiler = ["dep:profiler_builtins"] std_detect_file_io = ["std/std_detect_file_io"] std_detect_dlsym_getauxval = ["std/std_detect_dlsym_getauxval"] From d6f5d34744a2e2b6823d103353b3e9e3d525c714 Mon Sep 17 00:00:00 2001 From: Walnut <39544927+Walnut356@users.noreply.github.com> Date: Wed, 12 Feb 2025 01:30:09 -0600 Subject: [PATCH 032/255] fix string and tuple struct formatting --- src/etc/lldb_commands | 1 + src/etc/lldb_providers.py | 2 +- tests/debuginfo/empty-string.rs | 2 +- tests/debuginfo/msvc-pretty-enums.rs | 2 +- tests/debuginfo/pretty-std.rs | 3 ++- tests/debuginfo/strings-and-strs.rs | 2 +- 6 files changed, 7 insertions(+), 5 deletions(-) diff --git a/src/etc/lldb_commands b/src/etc/lldb_commands index 5f24d0da047e..508296c3a5ae 100644 --- a/src/etc/lldb_commands +++ b/src/etc/lldb_commands @@ -1,4 +1,5 @@ # Forces test-compliant formatting to all other types +type synthetic add -l lldb_lookup.synthetic_lookup -x ".*" --category Rust type summary add -F _ -e -x -h "^.*$" --category Rust # Std String type synthetic add -l lldb_lookup.StdStringSyntheticProvider -x "^(alloc::([a-z_]+::)+)String$" --category Rust diff --git a/src/etc/lldb_providers.py b/src/etc/lldb_providers.py index 573cc50a8685..98426e424239 100644 --- a/src/etc/lldb_providers.py +++ b/src/etc/lldb_providers.py @@ -194,7 +194,7 @@ def StdStringSummaryProvider(valobj, dict): length = inner_vec.GetChildMemberWithName("len").GetValueAsUnsigned() if length <= 0: - return "" + return '""' error = SBError() process = pointer.GetProcess() data = process.ReadMemory(pointer.GetValueAsUnsigned(), length, error) diff --git a/tests/debuginfo/empty-string.rs b/tests/debuginfo/empty-string.rs index 014465c27cab..6cf61e177714 100644 --- a/tests/debuginfo/empty-string.rs +++ b/tests/debuginfo/empty-string.rs @@ -17,7 +17,7 @@ // lldb-command:run // lldb-command:fr v empty_string -// lldb-check:[...] empty_string = "" { vec = size=0 } +// lldb-check:[...] empty_string = "" // lldb-command:fr v empty_str // lldb-check:[...] empty_str = "" diff --git a/tests/debuginfo/msvc-pretty-enums.rs b/tests/debuginfo/msvc-pretty-enums.rs index d60a7b81944e..06bc25dc5d59 100644 --- a/tests/debuginfo/msvc-pretty-enums.rs +++ b/tests/debuginfo/msvc-pretty-enums.rs @@ -30,7 +30,7 @@ // lldb-check:(msvc_pretty_enums::CStyleEnum) j = High // lldb-command:v k -// lldb-check:(core::option::Option) k = { value = { 0 = "IAMA optional string!" { vec = size=21 { [0] = 'I' [1] = 'A' [2] = 'M' [3] = 'A' [4] = ' ' [5] = 'o' [6] = 'p' [7] = 't' [8] = 'i' [9] = 'o' [10] = 'n' [11] = 'a' [12] = 'l' [13] = ' ' [14] = 's' [15] = 't' [16] = 'r' [17] = 'i' [18] = 'n' [19] = 'g' [20] = '!' } } } } +// lldb-check:(core::option::Option) k = { value = { 0 = "IAMA optional string!" { [0] = 'I' [1] = 'A' [2] = 'M' [3] = 'A' [4] = ' ' [5] = 'o' [6] = 'p' [7] = 't' [8] = 'i' [9] = 'o' [10] = 'n' [11] = 'a' [12] = 'l' [13] = ' ' [14] = 's' [15] = 't' [16] = 'r' [17] = 'i' [18] = 'n' [19] = 'g' [20] = '!' } } } // lldb-command:v l // lldb-check:(core::result::Result) l = { value = { 0 = {} } } diff --git a/tests/debuginfo/pretty-std.rs b/tests/debuginfo/pretty-std.rs index d7c640a5bea3..53835d41be24 100644 --- a/tests/debuginfo/pretty-std.rs +++ b/tests/debuginfo/pretty-std.rs @@ -51,7 +51,8 @@ // lldb-check:[...] str_slice = "IAMA string slice!" { [0] = 'I' [1] = 'A' [2] = 'M' [3] = 'A' [4] = ' ' [5] = 's' [6] = 't' [7] = 'r' [8] = 'i' [9] = 'n' [10] = 'g' [11] = ' ' [12] = 's' [13] = 'l' [14] = 'i' [15] = 'c' [16] = 'e' [17] = '!' } // lldb-command:v string -// lldb-check:[...] string = "IAMA string!" { vec = size=12 { [0] = 'I' [1] = 'A' [2] = 'M' [3] = 'A' [4] = ' ' [5] = 's' [6] = 't' [7] = 'r' [8] = 'i' [9] = 'n' [10] = 'g' [11] = '!' } } +// lldb-check:[...] string = "IAMA string!" { [0] = 'I' [1] = 'A' [2] = 'M' [3] = 'A' [4] = ' ' [5] = 's' [6] = 't' [7] = 'r' [8] = 'i' [9] = 'n' [10] = 'g' [11] = '!' } + // lldb-command:v some // lldb-check:[...] some = Some(8) diff --git a/tests/debuginfo/strings-and-strs.rs b/tests/debuginfo/strings-and-strs.rs index 3d6589db34b8..ffdad303d515 100644 --- a/tests/debuginfo/strings-and-strs.rs +++ b/tests/debuginfo/strings-and-strs.rs @@ -24,7 +24,7 @@ // === LLDB TESTS ================================================================================== // lldb-command:run // lldb-command:v plain_string -// lldb-check:(alloc::string::String) plain_string = "Hello" { vec = size=5 { [0] = 'H' [1] = 'e' [2] = 'l' [3] = 'l' [4] = 'o' } } +// lldb-check:(alloc::string::String) plain_string = "Hello" { [0] = 'H' [1] = 'e' [2] = 'l' [3] = 'l' [4] = 'o' } // lldb-command:v plain_str // lldb-check:(&str) plain_str = "Hello" { [0] = 'H' [1] = 'e' [2] = 'l' [3] = 'l' [4] = 'o' } From f3515fb127ae07f1b13340dde0c61a20291eb304 Mon Sep 17 00:00:00 2001 From: Samuel Tardieu Date: Wed, 12 Feb 2025 10:35:32 +0100 Subject: [PATCH 033/255] Remove ignored `#[must_use]` attributes from portable-simd The `#[must_use]` attribute has no effect when applied to methods in trait implementations. --- library/portable-simd/crates/core_simd/src/masks.rs | 13 ------------- .../crates/core_simd/src/masks/full_masks.rs | 5 ----- library/portable-simd/crates/core_simd/src/ops.rs | 1 - .../portable-simd/crates/core_simd/src/ops/deref.rs | 3 --- .../portable-simd/crates/core_simd/src/ops/unary.rs | 2 -- .../crates/core_simd/src/simd/num/float.rs | 1 - 6 files changed, 25 deletions(-) diff --git a/library/portable-simd/crates/core_simd/src/masks.rs b/library/portable-simd/crates/core_simd/src/masks.rs index b763a7c75a5a..19d45f4d3b31 100644 --- a/library/portable-simd/crates/core_simd/src/masks.rs +++ b/library/portable-simd/crates/core_simd/src/masks.rs @@ -401,7 +401,6 @@ where LaneCount: SupportedLaneCount, { #[inline] - #[must_use = "method returns a defaulted mask with all elements set to false (0)"] fn default() -> Self { Self::splat(false) } @@ -413,7 +412,6 @@ where LaneCount: SupportedLaneCount, { #[inline] - #[must_use = "method returns a new bool and does not mutate the original value"] fn eq(&self, other: &Self) -> bool { self.0 == other.0 } @@ -425,7 +423,6 @@ where LaneCount: SupportedLaneCount, { #[inline] - #[must_use = "method returns a new Ordering and does not mutate the original value"] fn partial_cmp(&self, other: &Self) -> Option { self.0.partial_cmp(&other.0) } @@ -451,7 +448,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitand(self, rhs: Self) -> Self { Self(self.0 & rhs.0) } @@ -464,7 +460,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitand(self, rhs: bool) -> Self { self & Self::splat(rhs) } @@ -477,7 +472,6 @@ where { type Output = Mask; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitand(self, rhs: Mask) -> Mask { Mask::splat(self) & rhs } @@ -490,7 +484,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitor(self, rhs: Self) -> Self { Self(self.0 | rhs.0) } @@ -503,7 +496,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitor(self, rhs: bool) -> Self { self | Self::splat(rhs) } @@ -516,7 +508,6 @@ where { type Output = Mask; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitor(self, rhs: Mask) -> Mask { Mask::splat(self) | rhs } @@ -529,7 +520,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitxor(self, rhs: Self) -> Self::Output { Self(self.0 ^ rhs.0) } @@ -542,7 +532,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitxor(self, rhs: bool) -> Self::Output { self ^ Self::splat(rhs) } @@ -555,7 +544,6 @@ where { type Output = Mask; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitxor(self, rhs: Mask) -> Self::Output { Mask::splat(self) ^ rhs } @@ -568,7 +556,6 @@ where { type Output = Mask; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn not(self) -> Self::Output { Self(!self.0) } diff --git a/library/portable-simd/crates/core_simd/src/masks/full_masks.rs b/library/portable-simd/crates/core_simd/src/masks/full_masks.rs index 2d01946b5747..387b508c4b4e 100644 --- a/library/portable-simd/crates/core_simd/src/masks/full_masks.rs +++ b/library/portable-simd/crates/core_simd/src/masks/full_masks.rs @@ -21,7 +21,6 @@ where LaneCount: SupportedLaneCount, { #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn clone(&self) -> Self { *self } @@ -252,7 +251,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitand(self, rhs: Self) -> Self { // Safety: `self` is an integer vector unsafe { Self(core::intrinsics::simd::simd_and(self.0, rhs.0)) } @@ -266,7 +264,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitor(self, rhs: Self) -> Self { // Safety: `self` is an integer vector unsafe { Self(core::intrinsics::simd::simd_or(self.0, rhs.0)) } @@ -280,7 +277,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn bitxor(self, rhs: Self) -> Self { // Safety: `self` is an integer vector unsafe { Self(core::intrinsics::simd::simd_xor(self.0, rhs.0)) } @@ -294,7 +290,6 @@ where { type Output = Self; #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn not(self) -> Self::Output { Self::splat(true) ^ self } diff --git a/library/portable-simd/crates/core_simd/src/ops.rs b/library/portable-simd/crates/core_simd/src/ops.rs index d3bd14a34027..4ac64a253a3b 100644 --- a/library/portable-simd/crates/core_simd/src/ops.rs +++ b/library/portable-simd/crates/core_simd/src/ops.rs @@ -135,7 +135,6 @@ macro_rules! for_base_types { type Output = $out; #[inline] - #[must_use = "operator returns a new vector without mutating the inputs"] // TODO: only useful for int Div::div, but we hope that this // will essentially always get inlined anyway. #[track_caller] diff --git a/library/portable-simd/crates/core_simd/src/ops/deref.rs b/library/portable-simd/crates/core_simd/src/ops/deref.rs index 0ff76cfba39b..913cbbe977c4 100644 --- a/library/portable-simd/crates/core_simd/src/ops/deref.rs +++ b/library/portable-simd/crates/core_simd/src/ops/deref.rs @@ -18,7 +18,6 @@ macro_rules! deref_lhs { type Output = Simd; #[inline] - #[must_use = "operator returns a new vector without mutating the inputs"] fn $call(self, rhs: $simd) -> Self::Output { (*self).$call(rhs) } @@ -39,7 +38,6 @@ macro_rules! deref_rhs { type Output = Simd; #[inline] - #[must_use = "operator returns a new vector without mutating the inputs"] fn $call(self, rhs: &$simd) -> Self::Output { self.$call(*rhs) } @@ -71,7 +69,6 @@ macro_rules! deref_ops { type Output = $simd; #[inline] - #[must_use = "operator returns a new vector without mutating the inputs"] fn $call(self, rhs: &'rhs $simd) -> Self::Output { (*self).$call(*rhs) } diff --git a/library/portable-simd/crates/core_simd/src/ops/unary.rs b/library/portable-simd/crates/core_simd/src/ops/unary.rs index bdae96332a3a..412a5b801171 100644 --- a/library/portable-simd/crates/core_simd/src/ops/unary.rs +++ b/library/portable-simd/crates/core_simd/src/ops/unary.rs @@ -11,7 +11,6 @@ macro_rules! neg { type Output = Self; #[inline] - #[must_use = "operator returns a new vector without mutating the input"] fn neg(self) -> Self::Output { // Safety: `self` is a signed vector unsafe { core::intrinsics::simd::simd_neg(self) } @@ -46,7 +45,6 @@ macro_rules! not { type Output = Self; #[inline] - #[must_use = "operator returns a new vector without mutating the input"] fn not(self) -> Self::Output { self ^ (Simd::splat(!(0 as $scalar))) } diff --git a/library/portable-simd/crates/core_simd/src/simd/num/float.rs b/library/portable-simd/crates/core_simd/src/simd/num/float.rs index 79954b937b39..db705dfe2022 100644 --- a/library/portable-simd/crates/core_simd/src/simd/num/float.rs +++ b/library/portable-simd/crates/core_simd/src/simd/num/float.rs @@ -371,7 +371,6 @@ macro_rules! impl_trait { } #[inline] - #[must_use = "method returns a new mask and does not mutate the original value"] fn is_normal(self) -> Self::Mask { !(self.abs().simd_eq(Self::splat(0.0)) | self.is_nan() | self.is_subnormal() | self.is_infinite()) } From 3e66ba73d519a2b653cc2f6af01c03ce6ed94055 Mon Sep 17 00:00:00 2001 From: Samuel Tardieu Date: Wed, 12 Feb 2025 15:22:32 +0100 Subject: [PATCH 034/255] Remove ignored `#[must_use]` attributes from Clippy The `#[must_use]` attribute has no effect when applied to methods in trait implementations. --- src/tools/clippy/clippy_lints/src/infinite_iter.rs | 1 - src/tools/clippy/clippy_utils/src/consts.rs | 3 --- 2 files changed, 4 deletions(-) diff --git a/src/tools/clippy/clippy_lints/src/infinite_iter.rs b/src/tools/clippy/clippy_lints/src/infinite_iter.rs index d3aade31f14f..7210f4b438db 100644 --- a/src/tools/clippy/clippy_lints/src/infinite_iter.rs +++ b/src/tools/clippy/clippy_lints/src/infinite_iter.rs @@ -94,7 +94,6 @@ impl Finiteness { } impl From for Finiteness { - #[must_use] fn from(b: bool) -> Self { if b { Infinite } else { Finite } } diff --git a/src/tools/clippy/clippy_utils/src/consts.rs b/src/tools/clippy/clippy_utils/src/consts.rs index db82c458f703..21909896c33e 100644 --- a/src/tools/clippy/clippy_utils/src/consts.rs +++ b/src/tools/clippy/clippy_utils/src/consts.rs @@ -351,21 +351,18 @@ pub enum FullInt { } impl PartialEq for FullInt { - #[must_use] fn eq(&self, other: &Self) -> bool { self.cmp(other) == Ordering::Equal } } impl PartialOrd for FullInt { - #[must_use] fn partial_cmp(&self, other: &Self) -> Option { Some(self.cmp(other)) } } impl Ord for FullInt { - #[must_use] fn cmp(&self, other: &Self) -> Ordering { use FullInt::{S, U}; From 7e7f5d385694ca345e0b47d8c59c7c966ee60a30 Mon Sep 17 00:00:00 2001 From: xizheyin Date: Tue, 11 Feb 2025 01:01:00 +0800 Subject: [PATCH 035/255] Replace mem::zeroed with mem::MaybeUninit::uninit for large struct in unix Signed-off-by: xizheyin --- library/std/src/sys/net/connection/socket.rs | 9 +++++--- .../std/src/sys/net/connection/socket/unix.rs | 7 ++++-- .../std/src/sys/pal/unix/stack_overflow.rs | 23 ++++++++++++++----- library/std/src/sys/pal/unix/thread.rs | 5 ++-- 4 files changed, 31 insertions(+), 13 deletions(-) diff --git a/library/std/src/sys/net/connection/socket.rs b/library/std/src/sys/net/connection/socket.rs index b4f0a7836803..ddd74b426158 100644 --- a/library/std/src/sys/net/connection/socket.rs +++ b/library/std/src/sys/net/connection/socket.rs @@ -557,10 +557,13 @@ impl TcpListener { } pub fn accept(&self) -> io::Result<(TcpStream, SocketAddr)> { - let mut storage: c::sockaddr_storage = unsafe { mem::zeroed() }; + // The `accept` function will fill in the storage with the address, + // so we don't need to zero it here. + // reference: https://linux.die.net/man/2/accept4 + let mut storage: mem::MaybeUninit = mem::MaybeUninit::uninit(); let mut len = mem::size_of_val(&storage) as c::socklen_t; - let sock = self.inner.accept((&raw mut storage) as *mut _, &mut len)?; - let addr = unsafe { socket_addr_from_c(&storage, len as usize)? }; + let sock = self.inner.accept(storage.as_mut_ptr() as *mut _, &mut len)?; + let addr = unsafe { socket_addr_from_c(storage.as_ptr(), len as usize)? }; Ok((TcpStream { inner: sock }, addr)) } diff --git a/library/std/src/sys/net/connection/socket/unix.rs b/library/std/src/sys/net/connection/socket/unix.rs index 34ab26bc117a..29fb47ddca3b 100644 --- a/library/std/src/sys/net/connection/socket/unix.rs +++ b/library/std/src/sys/net/connection/socket/unix.rs @@ -322,7 +322,10 @@ impl Socket { buf: &mut [u8], flags: c_int, ) -> io::Result<(usize, SocketAddr)> { - let mut storage: libc::sockaddr_storage = unsafe { mem::zeroed() }; + // The `recvfrom` function will fill in the storage with the address, + // so we don't need to zero it here. + // reference: https://linux.die.net/man/2/recvfrom + let mut storage: mem::MaybeUninit = mem::MaybeUninit::uninit(); let mut addrlen = mem::size_of_val(&storage) as libc::socklen_t; let n = cvt(unsafe { @@ -335,7 +338,7 @@ impl Socket { &mut addrlen, ) })?; - Ok((n as usize, unsafe { socket_addr_from_c(&storage, addrlen as usize)? })) + Ok((n as usize, unsafe { socket_addr_from_c(storage.as_ptr(), addrlen as usize)? })) } pub fn recv_from(&self, buf: &mut [u8]) -> io::Result<(usize, SocketAddr)> { diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs index db5c6bd3a1c3..1ccf2011ea16 100644 --- a/library/std/src/sys/pal/unix/stack_overflow.rs +++ b/library/std/src/sys/pal/unix/stack_overflow.rs @@ -319,9 +319,14 @@ mod imp { ))] unsafe fn get_stack_start() -> Option<*mut libc::c_void> { let mut ret = None; - let mut attr: libc::pthread_attr_t = crate::mem::zeroed(); - #[cfg(target_os = "freebsd")] - assert_eq!(libc::pthread_attr_init(&mut attr), 0); + let attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { + let mut attr = mem::MaybeUninit::uninit(); + assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); + attr + } else { + mem::MaybeUninit::zeroed() + }; + let mut attr = unsafe { attr.assume_init() }; #[cfg(target_os = "freebsd")] let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr); #[cfg(not(target_os = "freebsd"))] @@ -509,9 +514,15 @@ mod imp { // FIXME: I am probably not unsafe. unsafe fn current_guard() -> Option> { let mut ret = None; - let mut attr: libc::pthread_attr_t = crate::mem::zeroed(); - #[cfg(target_os = "freebsd")] - assert_eq!(libc::pthread_attr_init(&mut attr), 0); + let attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { + let mut attr = mem::MaybeUninit::uninit(); + assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); + attr + } else { + mem::MaybeUninit::zeroed() + }; + + let mut attr = unsafe { attr.assume_init() }; #[cfg(target_os = "freebsd")] let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr); #[cfg(not(target_os = "freebsd"))] diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index 479021af040a..c339970c5d37 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -49,8 +49,9 @@ impl Thread { pub unsafe fn new(stack: usize, p: Box) -> io::Result { let p = Box::into_raw(Box::new(p)); let mut native: libc::pthread_t = mem::zeroed(); - let mut attr: libc::pthread_attr_t = mem::zeroed(); - assert_eq!(libc::pthread_attr_init(&mut attr), 0); + let mut attr: mem::MaybeUninit = mem::MaybeUninit::uninit(); + assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); + let mut attr: libc::pthread_attr_t = unsafe { attr.assume_init() }; #[cfg(target_os = "espidf")] if stack > 0 { From c1ecdf112401cc03f5e0ed364892e5da04d3bf41 Mon Sep 17 00:00:00 2001 From: xizheyin Date: Tue, 11 Feb 2025 20:38:25 +0800 Subject: [PATCH 036/255] Consistently using as_mut_ptr() and as_ptr() in thread Signed-off-by: xizheyin --- library/std/src/sys/pal/unix/thread.rs | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-) diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index c339970c5d37..d476f6600bf4 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -50,24 +50,27 @@ impl Thread { let p = Box::into_raw(Box::new(p)); let mut native: libc::pthread_t = mem::zeroed(); let mut attr: mem::MaybeUninit = mem::MaybeUninit::uninit(); - assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); - let mut attr: libc::pthread_attr_t = unsafe { attr.assume_init() }; + assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); + //let mut attr: libc::pthread_attr_t = unsafe { attr.assume_init() }; #[cfg(target_os = "espidf")] if stack > 0 { // Only set the stack if a non-zero value is passed // 0 is used as an indication that the default stack size configured in the ESP-IDF menuconfig system should be used assert_eq!( - libc::pthread_attr_setstacksize(&mut attr, cmp::max(stack, min_stack_size(&attr))), + libc::pthread_attr_setstacksize( + attr.as_mut_ptr(), + cmp::max(stack, min_stack_size(&attr)) + ), 0 ); } #[cfg(not(target_os = "espidf"))] { - let stack_size = cmp::max(stack, min_stack_size(&attr)); + let stack_size = cmp::max(stack, min_stack_size(attr.as_ptr())); - match libc::pthread_attr_setstacksize(&mut attr, stack_size) { + match libc::pthread_attr_setstacksize(attr.as_mut_ptr(), stack_size) { 0 => {} n => { assert_eq!(n, libc::EINVAL); @@ -78,16 +81,16 @@ impl Thread { let page_size = os::page_size(); let stack_size = (stack_size + page_size - 1) & (-(page_size as isize - 1) as usize - 1); - assert_eq!(libc::pthread_attr_setstacksize(&mut attr, stack_size), 0); + assert_eq!(libc::pthread_attr_setstacksize(attr.as_mut_ptr(), stack_size), 0); } }; } - let ret = libc::pthread_create(&mut native, &attr, thread_start, p as *mut _); + let ret = libc::pthread_create(&mut native, attr.as_ptr(), thread_start, p as *mut _); // Note: if the thread creation fails and this assert fails, then p will // be leaked. However, an alternative design could cause double-free // which is clearly worse. - assert_eq!(libc::pthread_attr_destroy(&mut attr), 0); + assert_eq!(libc::pthread_attr_destroy(attr.as_mut_ptr()), 0); return if ret != 0 { // The thread failed to start and as a result p was not consumed. Therefore, it is From ef7534a5529a4e5fa93acacfeaee6e0798771421 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 13 Feb 2025 09:44:09 +0100 Subject: [PATCH 037/255] Update sccache version used on CI to 0.9.1 --- src/ci/docker/scripts/sccache.sh | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/ci/docker/scripts/sccache.sh b/src/ci/docker/scripts/sccache.sh index 6c713e1f8611..f66671c64d25 100644 --- a/src/ci/docker/scripts/sccache.sh +++ b/src/ci/docker/scripts/sccache.sh @@ -6,10 +6,10 @@ set -ex case "$(uname -m)" in x86_64) - url="https://ci-mirrors.rust-lang.org/rustc/2021-08-24-sccache-v0.2.15-x86_64-unknown-linux-musl" + url="https://ci-mirrors.rust-lang.org/rustc/2025-01-07-sccache-v0.9.1-x86_64-unknown-linux-musl" ;; aarch64) - url="https://ci-mirrors.rust-lang.org/rustc/2021-08-25-sccache-v0.2.15-aarch64-unknown-linux-musl" + url="https://ci-mirrors.rust-lang.org/rustc/2025-01-07-sccache-v0.9.1-aarch64-unknown-linux-musl" ;; *) echo "unsupported architecture: $(uname -m)" From f240986b8aa703393d4ee8dc83833368d60876d9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 13 Feb 2025 09:44:17 +0100 Subject: [PATCH 038/255] Print advanced sccache statistics --- src/ci/run.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ci/run.sh b/src/ci/run.sh index b874f71832d7..536754f12bc6 100755 --- a/src/ci/run.sh +++ b/src/ci/run.sh @@ -279,5 +279,5 @@ if [ "$RUN_CHECK_WITH_PARALLEL_QUERIES" != "" ]; then fi echo "::group::sccache stats" -sccache --show-stats || true +sccache --show-adv-stats || true echo "::endgroup::" From 5789fc0db18755af5f8a3ad067277cb56149d8de Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 13 Feb 2025 10:01:21 +0100 Subject: [PATCH 039/255] Add sccache S3 region --- .github/workflows/ci.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 0934e42b277e..4886bd272d15 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -70,6 +70,7 @@ jobs: HEAD_SHA: ${{ github.event.pull_request.head.sha || github.sha }} DOCKER_TOKEN: ${{ secrets.GITHUB_TOKEN }} SCCACHE_BUCKET: rust-lang-ci-sccache2 + SCCACHE_REGION: us-west-1 CACHE_DOMAIN: ci-caches.rust-lang.org continue-on-error: ${{ matrix.continue_on_error || false }} strategy: From 0d0a2a3bea3ad69b4acaa421932cc0d2aee53a58 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 13 Feb 2025 10:25:57 +0100 Subject: [PATCH 040/255] Do not pass empty AWS keys to sccache in PR builds --- src/ci/docker/run.sh | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/src/ci/docker/run.sh b/src/ci/docker/run.sh index d2697ac27ab7..6658b83efc8d 100755 --- a/src/ci/docker/run.sh +++ b/src/ci/docker/run.sh @@ -236,9 +236,15 @@ args= if [ "$SCCACHE_BUCKET" != "" ]; then args="$args --env SCCACHE_BUCKET" args="$args --env SCCACHE_REGION" - args="$args --env AWS_ACCESS_KEY_ID" - args="$args --env AWS_SECRET_ACCESS_KEY" args="$args --env AWS_REGION" + + # Disable S3 authentication for PR builds, because the access keys are missing + if [ "$PR_CI_JOB" != "" ]; then + args="$args --env SCCACHE_S3_NO_CREDENTIALS=1" + else + args="$args --env AWS_ACCESS_KEY_ID" + args="$args --env AWS_SECRET_ACCESS_KEY" + fi else mkdir -p $HOME/.cache/sccache args="$args --env SCCACHE_DIR=/sccache --volume $HOME/.cache/sccache:/sccache" From aede8f5fbff92bd1b257685c2e654a9bdf3a021f Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Sun, 9 Feb 2025 01:57:23 -0800 Subject: [PATCH 041/255] Simplify `slice::Iter::next` enough that it inlines --- library/core/src/slice/iter.rs | 2 +- library/core/src/slice/iter/macros.rs | 22 +- tests/codegen/slice-iter-nonnull.rs | 6 +- ...ated_loop.PreCodegen.after.panic-abort.mir | 255 +++++++++++++----- ...ward_loop.PreCodegen.after.panic-abort.mir | 192 ++++++++++--- ...ard_loop.PreCodegen.after.panic-unwind.mir | 200 +++++++++++--- ...iter_next.PreCodegen.after.panic-abort.mir | 124 ++++++++- ...ter_next.PreCodegen.after.panic-unwind.mir | 124 ++++++++- 8 files changed, 773 insertions(+), 152 deletions(-) diff --git a/library/core/src/slice/iter.rs b/library/core/src/slice/iter.rs index a687ed7129dc..5a87f1327dd7 100644 --- a/library/core/src/slice/iter.rs +++ b/library/core/src/slice/iter.rs @@ -11,7 +11,7 @@ use crate::iter::{ use crate::marker::PhantomData; use crate::mem::{self, SizedTypeProperties}; use crate::num::NonZero; -use crate::ptr::{NonNull, without_provenance, without_provenance_mut}; +use crate::ptr::{NonNull, null, without_provenance, without_provenance_mut}; use crate::{cmp, fmt}; #[stable(feature = "boxed_slice_into_iter", since = "1.80.0")] diff --git a/library/core/src/slice/iter/macros.rs b/library/core/src/slice/iter/macros.rs index 45e320e66bc1..74dfb8634f2f 100644 --- a/library/core/src/slice/iter/macros.rs +++ b/library/core/src/slice/iter/macros.rs @@ -154,16 +154,26 @@ macro_rules! iterator { #[inline] fn next(&mut self) -> Option<$elem> { - // could be implemented with slices, but this avoids bounds checks + // intentionally not using the helpers because this is + // one of the most mono'd things in the library. - // SAFETY: The call to `next_unchecked` is - // safe since we check if the iterator is empty first. + let ptr = self.ptr; + let end_or_len = self.end_or_len; + // SAFETY: Type invariants. unsafe { - if is_empty!(self) { - None + if T::IS_ZST { + let byte_end = end_or_len as *const u8; + if byte_end == null() { + return None; + } + self.end_or_len = byte_end.wrapping_sub(1) as _; } else { - Some(self.next_unchecked()) + if ptr == crate::intrinsics::transmute::<*const T, NonNull>(end_or_len) { + return None; + } + self.ptr = ptr.add(1); } + crate::intrinsics::transmute::, Option<$elem>>(ptr) } } diff --git a/tests/codegen/slice-iter-nonnull.rs b/tests/codegen/slice-iter-nonnull.rs index 98a1b961a644..87907e7ad0a3 100644 --- a/tests/codegen/slice-iter-nonnull.rs +++ b/tests/codegen/slice-iter-nonnull.rs @@ -14,11 +14,11 @@ // CHECK-LABEL: @slice_iter_next( #[no_mangle] pub fn slice_iter_next<'a>(it: &mut std::slice::Iter<'a, u32>) -> Option<&'a u32> { - // CHECK: %[[ENDP:.+]] = getelementptr inbounds{{( nuw)?}} i8, ptr %it, {{i32 4|i64 8}} - // CHECK: %[[END:.+]] = load ptr, ptr %[[ENDP]] + // CHECK: %[[START:.+]] = load ptr, ptr %it, // CHECK-SAME: !nonnull // CHECK-SAME: !noundef - // CHECK: %[[START:.+]] = load ptr, ptr %it, + // CHECK: %[[ENDP:.+]] = getelementptr inbounds{{( nuw)?}} i8, ptr %it, {{i32 4|i64 8}} + // CHECK: %[[END:.+]] = load ptr, ptr %[[ENDP]] // CHECK-SAME: !nonnull // CHECK-SAME: !noundef // CHECK: icmp eq ptr %[[START]], %[[END]] diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir index b7a9b4a1fe01..e12f97073d0f 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir @@ -4,28 +4,30 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { debug slice => _1; debug f => _2; let mut _0: (); - let mut _11: std::slice::Iter<'_, T>; - let mut _12: std::iter::Enumerate>; - let mut _13: std::iter::Enumerate>; - let mut _21: std::option::Option<(usize, &T)>; - let mut _24: &impl Fn(usize, &T); - let mut _25: (usize, &T); - let _26: (); + let mut _11: std::ptr::NonNull; + let mut _12: *const T; + let mut _13: usize; + let mut _33: std::option::Option<(usize, &T)>; + let mut _36: &impl Fn(usize, &T); + let mut _37: (usize, &T); + let _38: (); scope 1 { - debug iter => _13; - let _22: usize; - let _23: &T; + debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; + debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).1: *const T) => _12; + debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; + debug ((iter: Enumerate>).1: usize) => _13; + let _34: usize; + let _35: &T; scope 2 { - debug i => _22; - debug x => _23; + debug i => _34; + debug x => _35; } scope 19 (inlined > as Iterator>::next) { - let mut _14: &mut std::slice::Iter<'_, T>; - let mut _15: std::option::Option<&T>; - let mut _19: (usize, bool); - let mut _20: (usize, &T); + let mut _27: std::option::Option<&T>; + let mut _31: (usize, bool); + let mut _32: (usize, &T); scope 20 { - let _18: usize; + let _30: usize; scope 25 { } } @@ -40,11 +42,58 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } } scope 26 (inlined as Try>::branch) { - let mut _16: isize; - let _17: &T; + let mut _28: isize; + let _29: &T; scope 27 { } } + scope 29 (inlined as Iterator>::next) { + let _14: std::ptr::NonNull; + let _16: std::ptr::NonNull; + let mut _19: bool; + let mut _22: std::ptr::NonNull; + let mut _24: bool; + let mut _25: *const u8; + let mut _26: *const T; + scope 30 { + let _15: *const T; + scope 31 { + let _23: *const u8; + scope 32 { + scope 33 (inlined null::) { + scope 34 (inlined without_provenance::<()>) { + scope 35 (inlined without_provenance_mut::<()>) { + } + } + scope 36 (inlined std::ptr::from_raw_parts::) { + } + } + scope 37 (inlined std::ptr::const_ptr::::wrapping_sub) { + scope 38 (inlined core::num::::wrapping_neg) { + scope 39 (inlined core::num::::wrapping_sub) { + } + } + scope 40 (inlined std::ptr::const_ptr::::wrapping_offset) { + } + } + } + scope 41 (inlined as PartialEq>::eq) { + let mut _17: *mut T; + let mut _18: *mut T; + scope 42 (inlined NonNull::::as_ptr) { + } + scope 43 (inlined NonNull::::as_ptr) { + } + } + scope 44 (inlined NonNull::::add) { + let mut _20: *const T; + let mut _21: *const T; + scope 45 (inlined NonNull::::as_ptr) { + } + } + } + } + } } } scope 3 (inlined core::slice::::iter) { @@ -89,9 +138,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb0: { - StorageLive(_11); StorageLive(_3); - StorageLive(_6); StorageLive(_4); _3 = PtrMetadata(copy _1); _4 = &raw const (*_1); @@ -120,86 +167,162 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb3: { - StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; - StorageDead(_10); StorageDead(_9); StorageDead(_4); - StorageDead(_6); StorageDead(_3); - _12 = Enumerate::> { iter: copy _11, count: const 0_usize }; - StorageDead(_11); + StorageLive(_11); + StorageLive(_12); StorageLive(_13); - _13 = copy _12; + _11 = copy _6; + _12 = copy _10; + _13 = const 0_usize; goto -> bb4; } bb4: { - StorageLive(_21); - StorageLive(_18); - StorageLive(_19); - StorageLive(_15); + StorageLive(_33); + StorageLive(_30); + StorageLive(_31); + StorageLive(_27); StorageLive(_14); - _14 = &mut (_13.0: std::slice::Iter<'_, T>); - _15 = as Iterator>::next(move _14) -> [return: bb5, unwind unreachable]; + StorageLive(_15); + StorageLive(_23); + StorageLive(_16); + _14 = copy _11; + _15 = copy _12; + switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; } bb5: { - StorageDead(_14); - StorageLive(_16); - _16 = discriminant(_15); - switchInt(move _16) -> [0: bb6, 1: bb8, otherwise: bb11]; + StorageLive(_19); + _16 = copy _15 as std::ptr::NonNull (Transmute); + StorageLive(_17); + _17 = copy _14 as *mut T (Transmute); + StorageLive(_18); + _18 = copy _16 as *mut T (Transmute); + _19 = Eq(move _17, move _18); + StorageDead(_18); + StorageDead(_17); + switchInt(move _19) -> [0: bb6, otherwise: bb7]; } bb6: { - StorageDead(_16); - StorageDead(_15); StorageDead(_19); - StorageDead(_18); + StorageLive(_22); + StorageLive(_21); + StorageLive(_20); + _20 = copy _14 as *const T (Transmute); + _21 = Offset(move _20, const 1_usize); + StorageDead(_20); + _22 = NonNull:: { pointer: move _21 }; StorageDead(_21); - StorageDead(_13); - drop(_2) -> [return: bb7, unwind unreachable]; + _11 = move _22; + StorageDead(_22); + goto -> bb11; } bb7: { - return; + StorageDead(_19); + StorageDead(_16); + StorageDead(_23); + StorageDead(_15); + StorageDead(_14); + StorageLive(_28); + goto -> bb17; } bb8: { - _17 = move ((_15 as Some).0: &T); - StorageDead(_16); - StorageDead(_15); - _18 = copy (_13.1: usize); - _19 = AddWithOverflow(copy (_13.1: usize), const 1_usize); - assert(!move (_19.1: bool), "attempt to compute `{} + {}`, which would overflow", copy (_13.1: usize), const 1_usize) -> [success: bb9, unwind unreachable]; + _23 = copy _15 as *const u8 (PtrToPtr); + StorageLive(_24); + _24 = Eq(copy _23, const {0x0 as *const u8}); + switchInt(move _24) -> [0: bb9, otherwise: bb16]; } bb9: { - (_13.1: usize) = move (_19.0: usize); - StorageLive(_20); - _20 = (copy _18, copy _17); - _21 = Option::<(usize, &T)>::Some(move _20); - StorageDead(_20); - StorageDead(_19); - StorageDead(_18); - _22 = copy (((_21 as Some).0: (usize, &T)).0: usize); - _23 = copy (((_21 as Some).0: (usize, &T)).1: &T); - StorageLive(_24); - _24 = &_2; + StorageDead(_24); StorageLive(_25); - _25 = (copy _22, copy _23); - _26 = >::call(move _24, move _25) -> [return: bb10, unwind unreachable]; + _25 = arith_offset::(move _23, const -1_isize) -> [return: bb10, unwind unreachable]; } bb10: { + _26 = move _25 as *const T (PtrToPtr); StorageDead(_25); - StorageDead(_24); - StorageDead(_21); - goto -> bb4; + _12 = copy _26; + goto -> bb11; } bb11: { + _27 = copy _14 as std::option::Option<&T> (Transmute); + StorageDead(_16); + StorageDead(_23); + StorageDead(_15); + StorageDead(_14); + StorageLive(_28); + _28 = discriminant(_27); + switchInt(move _28) -> [0: bb17, 1: bb12, otherwise: bb15]; + } + + bb12: { + _29 = move ((_27 as Some).0: &T); + StorageDead(_28); + StorageDead(_27); + _30 = copy _13; + _31 = AddWithOverflow(copy _13, const 1_usize); + assert(!move (_31.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _13, const 1_usize) -> [success: bb13, unwind unreachable]; + } + + bb13: { + _13 = move (_31.0: usize); + StorageLive(_32); + _32 = (copy _30, copy _29); + _33 = Option::<(usize, &T)>::Some(move _32); + StorageDead(_32); + StorageDead(_31); + StorageDead(_30); + _34 = copy (((_33 as Some).0: (usize, &T)).0: usize); + _35 = copy (((_33 as Some).0: (usize, &T)).1: &T); + StorageLive(_36); + _36 = &_2; + StorageLive(_37); + _37 = (copy _34, copy _35); + _38 = >::call(move _36, move _37) -> [return: bb14, unwind unreachable]; + } + + bb14: { + StorageDead(_37); + StorageDead(_36); + StorageDead(_33); + goto -> bb4; + } + + bb15: { unreachable; } + + bb16: { + StorageDead(_24); + StorageDead(_16); + StorageDead(_23); + StorageDead(_15); + StorageDead(_14); + StorageLive(_28); + goto -> bb17; + } + + bb17: { + StorageDead(_28); + StorageDead(_27); + StorageDead(_31); + StorageDead(_30); + StorageDead(_33); + StorageDead(_11); + StorageDead(_12); + StorageDead(_13); + drop(_2) -> [return: bb18, unwind unreachable]; + } + + bb18: { + return; + } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir index dc13bb23c310..88d0aa7f6240 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir @@ -4,19 +4,67 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { debug slice => _1; debug f => _2; let mut _0: (); - let mut _11: std::slice::Iter<'_, T>; - let mut _12: std::slice::Iter<'_, T>; - let mut _13: &mut std::slice::Iter<'_, T>; - let mut _14: std::option::Option<&T>; - let mut _15: isize; - let mut _17: &impl Fn(&T); - let mut _18: (&T,); - let _19: (); + let mut _11: std::ptr::NonNull; + let mut _12: *const T; + let mut _26: std::option::Option<&T>; + let mut _27: isize; + let mut _29: &impl Fn(&T); + let mut _30: (&T,); + let _31: (); scope 1 { - debug iter => _12; - let _16: &T; + debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; + debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; + debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; + let _28: &T; scope 2 { - debug x => _16; + debug x => _28; + } + scope 17 (inlined as Iterator>::next) { + let _13: std::ptr::NonNull; + let _15: std::ptr::NonNull; + let mut _18: bool; + let mut _21: std::ptr::NonNull; + let mut _23: bool; + let mut _24: *const u8; + let mut _25: *const T; + scope 18 { + let _14: *const T; + scope 19 { + let _22: *const u8; + scope 20 { + scope 21 (inlined null::) { + scope 22 (inlined without_provenance::<()>) { + scope 23 (inlined without_provenance_mut::<()>) { + } + } + scope 24 (inlined std::ptr::from_raw_parts::) { + } + } + scope 25 (inlined std::ptr::const_ptr::::wrapping_sub) { + scope 26 (inlined core::num::::wrapping_neg) { + scope 27 (inlined core::num::::wrapping_sub) { + } + } + scope 28 (inlined std::ptr::const_ptr::::wrapping_offset) { + } + } + } + scope 29 (inlined as PartialEq>::eq) { + let mut _16: *mut T; + let mut _17: *mut T; + scope 30 (inlined NonNull::::as_ptr) { + } + scope 31 (inlined NonNull::::as_ptr) { + } + } + scope 32 (inlined NonNull::::add) { + let mut _19: *const T; + let mut _20: *const T; + scope 33 (inlined NonNull::::as_ptr) { + } + } + } + } } } scope 3 (inlined core::slice::::iter) { @@ -58,7 +106,6 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb0: { StorageLive(_3); - StorageLive(_6); StorageLive(_4); _3 = PtrMetadata(copy _1); _4 = &raw const (*_1); @@ -87,57 +134,132 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb3: { - StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; - StorageDead(_10); StorageDead(_9); StorageDead(_4); - StorageDead(_6); StorageDead(_3); + StorageLive(_11); StorageLive(_12); - _12 = copy _11; + _11 = copy _6; + _12 = copy _10; goto -> bb4; } bb4: { + StorageLive(_26); + StorageLive(_13); StorageLive(_14); - _13 = &mut _12; - _14 = as Iterator>::next(move _13) -> [return: bb5, unwind unreachable]; + StorageLive(_22); + StorageLive(_15); + _13 = copy _11; + _14 = copy _12; + switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; } bb5: { - _15 = discriminant(_14); - switchInt(move _15) -> [0: bb6, 1: bb8, otherwise: bb10]; + StorageLive(_18); + _15 = copy _14 as std::ptr::NonNull (Transmute); + StorageLive(_16); + _16 = copy _13 as *mut T (Transmute); + StorageLive(_17); + _17 = copy _15 as *mut T (Transmute); + _18 = Eq(move _16, move _17); + StorageDead(_17); + StorageDead(_16); + switchInt(move _18) -> [0: bb6, otherwise: bb7]; } bb6: { - StorageDead(_14); - StorageDead(_12); - drop(_2) -> [return: bb7, unwind unreachable]; + StorageDead(_18); + StorageLive(_21); + StorageLive(_20); + StorageLive(_19); + _19 = copy _13 as *const T (Transmute); + _20 = Offset(move _19, const 1_usize); + StorageDead(_19); + _21 = NonNull:: { pointer: move _20 }; + StorageDead(_20); + _11 = move _21; + StorageDead(_21); + goto -> bb11; } bb7: { - return; + StorageDead(_18); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb16; } bb8: { - _16 = copy ((_14 as Some).0: &T); - StorageLive(_17); - _17 = &_2; - StorageLive(_18); - _18 = (copy _16,); - _19 = >::call(move _17, move _18) -> [return: bb9, unwind unreachable]; + _22 = copy _14 as *const u8 (PtrToPtr); + StorageLive(_23); + _23 = Eq(copy _22, const {0x0 as *const u8}); + switchInt(move _23) -> [0: bb9, otherwise: bb15]; } bb9: { - StorageDead(_18); - StorageDead(_17); - StorageDead(_14); - goto -> bb4; + StorageDead(_23); + StorageLive(_24); + _24 = arith_offset::(move _22, const -1_isize) -> [return: bb10, unwind unreachable]; } bb10: { + _25 = move _24 as *const T (PtrToPtr); + StorageDead(_24); + _12 = copy _25; + goto -> bb11; + } + + bb11: { + _26 = copy _13 as std::option::Option<&T> (Transmute); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + _27 = discriminant(_26); + switchInt(move _27) -> [0: bb16, 1: bb12, otherwise: bb14]; + } + + bb12: { + _28 = copy ((_26 as Some).0: &T); + StorageLive(_29); + _29 = &_2; + StorageLive(_30); + _30 = (copy _28,); + _31 = >::call(move _29, move _30) -> [return: bb13, unwind unreachable]; + } + + bb13: { + StorageDead(_30); + StorageDead(_29); + StorageDead(_26); + goto -> bb4; + } + + bb14: { unreachable; } + + bb15: { + StorageDead(_23); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb16; + } + + bb16: { + StorageDead(_26); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb17, unwind unreachable]; + } + + bb17: { + return; + } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir index 3f1e0e0f746b..f34edc4775d3 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir @@ -4,19 +4,67 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { debug slice => _1; debug f => _2; let mut _0: (); - let mut _11: std::slice::Iter<'_, T>; - let mut _12: std::slice::Iter<'_, T>; - let mut _13: &mut std::slice::Iter<'_, T>; - let mut _14: std::option::Option<&T>; - let mut _15: isize; - let mut _17: &impl Fn(&T); - let mut _18: (&T,); - let _19: (); + let mut _11: std::ptr::NonNull; + let mut _12: *const T; + let mut _26: std::option::Option<&T>; + let mut _27: isize; + let mut _29: &impl Fn(&T); + let mut _30: (&T,); + let _31: (); scope 1 { - debug iter => _12; - let _16: &T; + debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; + debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; + debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; + let _28: &T; scope 2 { - debug x => _16; + debug x => _28; + } + scope 17 (inlined as Iterator>::next) { + let _13: std::ptr::NonNull; + let _15: std::ptr::NonNull; + let mut _18: bool; + let mut _21: std::ptr::NonNull; + let mut _23: bool; + let mut _24: *const u8; + let mut _25: *const T; + scope 18 { + let _14: *const T; + scope 19 { + let _22: *const u8; + scope 20 { + scope 21 (inlined null::) { + scope 22 (inlined without_provenance::<()>) { + scope 23 (inlined without_provenance_mut::<()>) { + } + } + scope 24 (inlined std::ptr::from_raw_parts::) { + } + } + scope 25 (inlined std::ptr::const_ptr::::wrapping_sub) { + scope 26 (inlined core::num::::wrapping_neg) { + scope 27 (inlined core::num::::wrapping_sub) { + } + } + scope 28 (inlined std::ptr::const_ptr::::wrapping_offset) { + } + } + } + scope 29 (inlined as PartialEq>::eq) { + let mut _16: *mut T; + let mut _17: *mut T; + scope 30 (inlined NonNull::::as_ptr) { + } + scope 31 (inlined NonNull::::as_ptr) { + } + } + scope 32 (inlined NonNull::::add) { + let mut _19: *const T; + let mut _20: *const T; + scope 33 (inlined NonNull::::as_ptr) { + } + } + } + } } } scope 3 (inlined core::slice::::iter) { @@ -58,7 +106,6 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb0: { StorageLive(_3); - StorageLive(_6); StorageLive(_4); _3 = PtrMetadata(copy _1); _4 = &raw const (*_1); @@ -87,65 +134,140 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb3: { - StorageLive(_10); _10 = copy _9; - _11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> }; - StorageDead(_10); StorageDead(_9); StorageDead(_4); - StorageDead(_6); StorageDead(_3); + StorageLive(_11); StorageLive(_12); - _12 = copy _11; + _11 = copy _6; + _12 = copy _10; goto -> bb4; } bb4: { + StorageLive(_26); + StorageLive(_13); StorageLive(_14); - _13 = &mut _12; - _14 = as Iterator>::next(move _13) -> [return: bb5, unwind: bb11]; + StorageLive(_22); + StorageLive(_15); + _13 = copy _11; + _14 = copy _12; + switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; } bb5: { - _15 = discriminant(_14); - switchInt(move _15) -> [0: bb6, 1: bb8, otherwise: bb10]; + StorageLive(_18); + _15 = copy _14 as std::ptr::NonNull (Transmute); + StorageLive(_16); + _16 = copy _13 as *mut T (Transmute); + StorageLive(_17); + _17 = copy _15 as *mut T (Transmute); + _18 = Eq(move _16, move _17); + StorageDead(_17); + StorageDead(_16); + switchInt(move _18) -> [0: bb6, otherwise: bb7]; } bb6: { - StorageDead(_14); - StorageDead(_12); - drop(_2) -> [return: bb7, unwind continue]; + StorageDead(_18); + StorageLive(_21); + StorageLive(_20); + StorageLive(_19); + _19 = copy _13 as *const T (Transmute); + _20 = Offset(move _19, const 1_usize); + StorageDead(_19); + _21 = NonNull:: { pointer: move _20 }; + StorageDead(_20); + _11 = move _21; + StorageDead(_21); + goto -> bb11; } bb7: { - return; + StorageDead(_18); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb18; } bb8: { - _16 = copy ((_14 as Some).0: &T); - StorageLive(_17); - _17 = &_2; - StorageLive(_18); - _18 = (copy _16,); - _19 = >::call(move _17, move _18) -> [return: bb9, unwind: bb11]; + _22 = copy _14 as *const u8 (PtrToPtr); + StorageLive(_23); + _23 = Eq(copy _22, const {0x0 as *const u8}); + switchInt(move _23) -> [0: bb9, otherwise: bb17]; } bb9: { - StorageDead(_18); - StorageDead(_17); - StorageDead(_14); - goto -> bb4; + StorageDead(_23); + StorageLive(_24); + _24 = arith_offset::(move _22, const -1_isize) -> [return: bb10, unwind unreachable]; } bb10: { + _25 = move _24 as *const T (PtrToPtr); + StorageDead(_24); + _12 = copy _25; + goto -> bb11; + } + + bb11: { + _26 = copy _13 as std::option::Option<&T> (Transmute); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + _27 = discriminant(_26); + switchInt(move _27) -> [0: bb18, 1: bb12, otherwise: bb16]; + } + + bb12: { + _28 = copy ((_26 as Some).0: &T); + StorageLive(_29); + _29 = &_2; + StorageLive(_30); + _30 = (copy _28,); + _31 = >::call(move _29, move _30) -> [return: bb13, unwind: bb14]; + } + + bb13: { + StorageDead(_30); + StorageDead(_29); + StorageDead(_26); + goto -> bb4; + } + + bb14 (cleanup): { + drop(_2) -> [return: bb15, unwind terminate(cleanup)]; + } + + bb15 (cleanup): { + resume; + } + + bb16: { unreachable; } - bb11 (cleanup): { - drop(_2) -> [return: bb12, unwind terminate(cleanup)]; + bb17: { + StorageDead(_23); + StorageDead(_15); + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb18; } - bb12 (cleanup): { - resume; + bb18: { + StorageDead(_26); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb19, unwind continue]; + } + + bb19: { + return; } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir index 8edac638ccdd..975a8a11fb21 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir @@ -3,12 +3,134 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { debug it => _1; let mut _0: std::option::Option<&T>; + scope 1 (inlined as Iterator>::next) { + let _2: std::ptr::NonNull; + let _4: std::ptr::NonNull; + let mut _7: bool; + let mut _10: std::ptr::NonNull; + let mut _12: bool; + let mut _13: *const u8; + let mut _14: *const T; + scope 2 { + let _3: *const T; + scope 3 { + let _11: *const u8; + scope 4 { + scope 5 (inlined null::) { + scope 6 (inlined without_provenance::<()>) { + scope 7 (inlined without_provenance_mut::<()>) { + } + } + scope 8 (inlined std::ptr::from_raw_parts::) { + } + } + scope 9 (inlined std::ptr::const_ptr::::wrapping_sub) { + scope 10 (inlined core::num::::wrapping_neg) { + scope 11 (inlined core::num::::wrapping_sub) { + } + } + scope 12 (inlined std::ptr::const_ptr::::wrapping_offset) { + } + } + } + scope 13 (inlined as PartialEq>::eq) { + let mut _5: *mut T; + let mut _6: *mut T; + scope 14 (inlined NonNull::::as_ptr) { + } + scope 15 (inlined NonNull::::as_ptr) { + } + } + scope 16 (inlined NonNull::::add) { + let mut _8: *const T; + let mut _9: *const T; + scope 17 (inlined NonNull::::as_ptr) { + } + } + } + } + } bb0: { - _0 = as Iterator>::next(move _1) -> [return: bb1, unwind unreachable]; + StorageLive(_2); + StorageLive(_3); + StorageLive(_11); + StorageLive(_4); + _2 = copy ((*_1).0: std::ptr::NonNull); + _3 = copy ((*_1).1: *const T); + switchInt(const ::IS_ZST) -> [0: bb1, otherwise: bb4]; } bb1: { + StorageLive(_7); + _4 = copy _3 as std::ptr::NonNull (Transmute); + StorageLive(_5); + _5 = copy _2 as *mut T (Transmute); + StorageLive(_6); + _6 = copy _4 as *mut T (Transmute); + _7 = Eq(move _5, move _6); + StorageDead(_6); + StorageDead(_5); + switchInt(move _7) -> [0: bb2, otherwise: bb3]; + } + + bb2: { + StorageDead(_7); + StorageLive(_10); + StorageLive(_9); + StorageLive(_8); + _8 = copy _2 as *const T (Transmute); + _9 = Offset(move _8, const 1_usize); + StorageDead(_8); + _10 = NonNull:: { pointer: move _9 }; + StorageDead(_9); + ((*_1).0: std::ptr::NonNull) = move _10; + StorageDead(_10); + goto -> bb7; + } + + bb3: { + _0 = const {transmute(0x0000000000000000): Option<&T>}; + StorageDead(_7); + goto -> bb9; + } + + bb4: { + _11 = copy _3 as *const u8 (PtrToPtr); + StorageLive(_12); + _12 = Eq(copy _11, const {0x0 as *const u8}); + switchInt(move _12) -> [0: bb5, otherwise: bb8]; + } + + bb5: { + StorageDead(_12); + StorageLive(_13); + _13 = arith_offset::(move _11, const -1_isize) -> [return: bb6, unwind unreachable]; + } + + bb6: { + _14 = move _13 as *const T (PtrToPtr); + StorageDead(_13); + ((*_1).1: *const T) = copy _14; + goto -> bb7; + } + + bb7: { + _0 = copy _2 as std::option::Option<&T> (Transmute); + goto -> bb9; + } + + bb8: { + _0 = const {transmute(0x0000000000000000): Option<&T>}; + StorageDead(_12); + goto -> bb9; + } + + bb9: { + StorageDead(_4); + StorageDead(_11); + StorageDead(_3); + StorageDead(_2); return; } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir index fdde07173437..975a8a11fb21 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir @@ -3,12 +3,134 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { debug it => _1; let mut _0: std::option::Option<&T>; + scope 1 (inlined as Iterator>::next) { + let _2: std::ptr::NonNull; + let _4: std::ptr::NonNull; + let mut _7: bool; + let mut _10: std::ptr::NonNull; + let mut _12: bool; + let mut _13: *const u8; + let mut _14: *const T; + scope 2 { + let _3: *const T; + scope 3 { + let _11: *const u8; + scope 4 { + scope 5 (inlined null::) { + scope 6 (inlined without_provenance::<()>) { + scope 7 (inlined without_provenance_mut::<()>) { + } + } + scope 8 (inlined std::ptr::from_raw_parts::) { + } + } + scope 9 (inlined std::ptr::const_ptr::::wrapping_sub) { + scope 10 (inlined core::num::::wrapping_neg) { + scope 11 (inlined core::num::::wrapping_sub) { + } + } + scope 12 (inlined std::ptr::const_ptr::::wrapping_offset) { + } + } + } + scope 13 (inlined as PartialEq>::eq) { + let mut _5: *mut T; + let mut _6: *mut T; + scope 14 (inlined NonNull::::as_ptr) { + } + scope 15 (inlined NonNull::::as_ptr) { + } + } + scope 16 (inlined NonNull::::add) { + let mut _8: *const T; + let mut _9: *const T; + scope 17 (inlined NonNull::::as_ptr) { + } + } + } + } + } bb0: { - _0 = as Iterator>::next(move _1) -> [return: bb1, unwind continue]; + StorageLive(_2); + StorageLive(_3); + StorageLive(_11); + StorageLive(_4); + _2 = copy ((*_1).0: std::ptr::NonNull); + _3 = copy ((*_1).1: *const T); + switchInt(const ::IS_ZST) -> [0: bb1, otherwise: bb4]; } bb1: { + StorageLive(_7); + _4 = copy _3 as std::ptr::NonNull (Transmute); + StorageLive(_5); + _5 = copy _2 as *mut T (Transmute); + StorageLive(_6); + _6 = copy _4 as *mut T (Transmute); + _7 = Eq(move _5, move _6); + StorageDead(_6); + StorageDead(_5); + switchInt(move _7) -> [0: bb2, otherwise: bb3]; + } + + bb2: { + StorageDead(_7); + StorageLive(_10); + StorageLive(_9); + StorageLive(_8); + _8 = copy _2 as *const T (Transmute); + _9 = Offset(move _8, const 1_usize); + StorageDead(_8); + _10 = NonNull:: { pointer: move _9 }; + StorageDead(_9); + ((*_1).0: std::ptr::NonNull) = move _10; + StorageDead(_10); + goto -> bb7; + } + + bb3: { + _0 = const {transmute(0x0000000000000000): Option<&T>}; + StorageDead(_7); + goto -> bb9; + } + + bb4: { + _11 = copy _3 as *const u8 (PtrToPtr); + StorageLive(_12); + _12 = Eq(copy _11, const {0x0 as *const u8}); + switchInt(move _12) -> [0: bb5, otherwise: bb8]; + } + + bb5: { + StorageDead(_12); + StorageLive(_13); + _13 = arith_offset::(move _11, const -1_isize) -> [return: bb6, unwind unreachable]; + } + + bb6: { + _14 = move _13 as *const T (PtrToPtr); + StorageDead(_13); + ((*_1).1: *const T) = copy _14; + goto -> bb7; + } + + bb7: { + _0 = copy _2 as std::option::Option<&T> (Transmute); + goto -> bb9; + } + + bb8: { + _0 = const {transmute(0x0000000000000000): Option<&T>}; + StorageDead(_12); + goto -> bb9; + } + + bb9: { + StorageDead(_4); + StorageDead(_11); + StorageDead(_3); + StorageDead(_2); return; } } From 3a62c70051e40fbcfc7e5b9ad60cb9cfc4dddcee Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Thu, 13 Feb 2025 22:28:29 -0800 Subject: [PATCH 042/255] Save another BB by using `SubUnchecked` instead of a call to `arith_offset` Probably reasonable anyway since it more obviously drops provenance. --- library/core/src/slice/iter.rs | 2 +- library/core/src/slice/iter/macros.rs | 8 +- ...ated_loop.PreCodegen.after.panic-abort.mir | 198 ++++++++---------- ...ward_loop.PreCodegen.after.panic-abort.mir | 122 +++++------ ...ard_loop.PreCodegen.after.panic-unwind.mir | 138 ++++++------ ...iter_next.PreCodegen.after.panic-abort.mir | 64 +++--- ...ter_next.PreCodegen.after.panic-unwind.mir | 64 +++--- 7 files changed, 266 insertions(+), 330 deletions(-) diff --git a/library/core/src/slice/iter.rs b/library/core/src/slice/iter.rs index 5a87f1327dd7..a687ed7129dc 100644 --- a/library/core/src/slice/iter.rs +++ b/library/core/src/slice/iter.rs @@ -11,7 +11,7 @@ use crate::iter::{ use crate::marker::PhantomData; use crate::mem::{self, SizedTypeProperties}; use crate::num::NonZero; -use crate::ptr::{NonNull, null, without_provenance, without_provenance_mut}; +use crate::ptr::{NonNull, without_provenance, without_provenance_mut}; use crate::{cmp, fmt}; #[stable(feature = "boxed_slice_into_iter", since = "1.80.0")] diff --git a/library/core/src/slice/iter/macros.rs b/library/core/src/slice/iter/macros.rs index 74dfb8634f2f..101f3157651f 100644 --- a/library/core/src/slice/iter/macros.rs +++ b/library/core/src/slice/iter/macros.rs @@ -162,13 +162,13 @@ macro_rules! iterator { // SAFETY: Type invariants. unsafe { if T::IS_ZST { - let byte_end = end_or_len as *const u8; - if byte_end == null() { + let len = end_or_len.addr(); + if len == 0 { return None; } - self.end_or_len = byte_end.wrapping_sub(1) as _; + self.end_or_len = without_provenance_mut(len.unchecked_sub(1)); } else { - if ptr == crate::intrinsics::transmute::<*const T, NonNull>(end_or_len) { + if ptr == crate::intrinsics::transmute::<$ptr, NonNull>(end_or_len) { return None; } self.ptr = ptr.add(1); diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir index e12f97073d0f..80b96e01041e 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir @@ -7,27 +7,27 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let mut _11: std::ptr::NonNull; let mut _12: *const T; let mut _13: usize; - let mut _33: std::option::Option<(usize, &T)>; - let mut _36: &impl Fn(usize, &T); - let mut _37: (usize, &T); - let _38: (); + let mut _31: std::option::Option<(usize, &T)>; + let mut _34: &impl Fn(usize, &T); + let mut _35: (usize, &T); + let _36: (); scope 1 { debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).1: *const T) => _12; debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; debug ((iter: Enumerate>).1: usize) => _13; - let _34: usize; - let _35: &T; + let _32: usize; + let _33: &T; scope 2 { - debug i => _34; - debug x => _35; + debug i => _32; + debug x => _33; } scope 19 (inlined > as Iterator>::next) { - let mut _27: std::option::Option<&T>; - let mut _31: (usize, bool); - let mut _32: (usize, &T); + let mut _25: std::option::Option<&T>; + let mut _29: (usize, bool); + let mut _30: (usize, &T); scope 20 { - let _30: usize; + let _28: usize; scope 25 { } } @@ -42,8 +42,8 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } } scope 26 (inlined as Try>::branch) { - let mut _28: isize; - let _29: &T; + let mut _26: isize; + let _27: &T; scope 27 { } } @@ -52,43 +52,37 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let _16: std::ptr::NonNull; let mut _19: bool; let mut _22: std::ptr::NonNull; - let mut _24: bool; - let mut _25: *const u8; - let mut _26: *const T; + let mut _24: usize; scope 30 { let _15: *const T; scope 31 { - let _23: *const u8; + let _23: usize; scope 32 { - scope 33 (inlined null::) { - scope 34 (inlined without_provenance::<()>) { - scope 35 (inlined without_provenance_mut::<()>) { + scope 35 (inlined core::num::::unchecked_sub) { + scope 36 (inlined core::ub_checks::check_language_ub) { + scope 37 (inlined core::ub_checks::check_language_ub::runtime) { } } - scope 36 (inlined std::ptr::from_raw_parts::) { - } } - scope 37 (inlined std::ptr::const_ptr::::wrapping_sub) { - scope 38 (inlined core::num::::wrapping_neg) { - scope 39 (inlined core::num::::wrapping_sub) { - } - } - scope 40 (inlined std::ptr::const_ptr::::wrapping_offset) { - } + scope 38 (inlined without_provenance_mut::) { } } - scope 41 (inlined as PartialEq>::eq) { + scope 33 (inlined std::ptr::const_ptr::::addr) { + scope 34 (inlined std::ptr::const_ptr::::cast::<()>) { + } + } + scope 39 (inlined as PartialEq>::eq) { let mut _17: *mut T; let mut _18: *mut T; - scope 42 (inlined NonNull::::as_ptr) { + scope 40 (inlined NonNull::::as_ptr) { } - scope 43 (inlined NonNull::::as_ptr) { + scope 41 (inlined NonNull::::as_ptr) { } } - scope 44 (inlined NonNull::::add) { + scope 42 (inlined NonNull::::add) { let mut _20: *const T; let mut _21: *const T; - scope 45 (inlined NonNull::::as_ptr) { + scope 43 (inlined NonNull::::as_ptr) { } } } @@ -181,13 +175,14 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb4: { - StorageLive(_33); - StorageLive(_30); StorageLive(_31); - StorageLive(_27); + StorageLive(_28); + StorageLive(_29); + StorageLive(_25); StorageLive(_14); StorageLive(_15); StorageLive(_23); + StorageLive(_24); StorageLive(_16); _14 = copy _11; _15 = copy _12; @@ -225,104 +220,97 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { bb7: { StorageDead(_19); StorageDead(_16); + StorageDead(_24); StorageDead(_23); StorageDead(_15); StorageDead(_14); - StorageLive(_28); - goto -> bb17; + StorageLive(_26); + goto -> bb12; } bb8: { - _23 = copy _15 as *const u8 (PtrToPtr); - StorageLive(_24); - _24 = Eq(copy _23, const {0x0 as *const u8}); - switchInt(move _24) -> [0: bb9, otherwise: bb16]; + _23 = copy _15 as usize (Transmute); + switchInt(copy _23) -> [0: bb9, otherwise: bb10]; } bb9: { + StorageDead(_16); StorageDead(_24); - StorageLive(_25); - _25 = arith_offset::(move _23, const -1_isize) -> [return: bb10, unwind unreachable]; + StorageDead(_23); + StorageDead(_15); + StorageDead(_14); + StorageLive(_26); + goto -> bb12; } bb10: { - _26 = move _25 as *const T (PtrToPtr); - StorageDead(_25); - _12 = copy _26; + _24 = SubUnchecked(copy _23, const 1_usize); + _12 = copy _24 as *const T (Transmute); goto -> bb11; } bb11: { - _27 = copy _14 as std::option::Option<&T> (Transmute); + _25 = copy _14 as std::option::Option<&T> (Transmute); StorageDead(_16); + StorageDead(_24); StorageDead(_23); StorageDead(_15); StorageDead(_14); - StorageLive(_28); - _28 = discriminant(_27); - switchInt(move _28) -> [0: bb17, 1: bb12, otherwise: bb15]; + StorageLive(_26); + _26 = discriminant(_25); + switchInt(move _26) -> [0: bb12, 1: bb14, otherwise: bb17]; } bb12: { - _29 = move ((_27 as Some).0: &T); + StorageDead(_26); + StorageDead(_25); + StorageDead(_29); StorageDead(_28); - StorageDead(_27); - _30 = copy _13; - _31 = AddWithOverflow(copy _13, const 1_usize); - assert(!move (_31.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _13, const 1_usize) -> [success: bb13, unwind unreachable]; - } - - bb13: { - _13 = move (_31.0: usize); - StorageLive(_32); - _32 = (copy _30, copy _29); - _33 = Option::<(usize, &T)>::Some(move _32); - StorageDead(_32); StorageDead(_31); - StorageDead(_30); - _34 = copy (((_33 as Some).0: (usize, &T)).0: usize); - _35 = copy (((_33 as Some).0: (usize, &T)).1: &T); - StorageLive(_36); - _36 = &_2; - StorageLive(_37); - _37 = (copy _34, copy _35); - _38 = >::call(move _36, move _37) -> [return: bb14, unwind unreachable]; - } - - bb14: { - StorageDead(_37); - StorageDead(_36); - StorageDead(_33); - goto -> bb4; - } - - bb15: { - unreachable; - } - - bb16: { - StorageDead(_24); - StorageDead(_16); - StorageDead(_23); - StorageDead(_15); - StorageDead(_14); - StorageLive(_28); - goto -> bb17; - } - - bb17: { - StorageDead(_28); - StorageDead(_27); - StorageDead(_31); - StorageDead(_30); - StorageDead(_33); StorageDead(_11); StorageDead(_12); StorageDead(_13); - drop(_2) -> [return: bb18, unwind unreachable]; + drop(_2) -> [return: bb13, unwind unreachable]; } - bb18: { + bb13: { return; } + + bb14: { + _27 = move ((_25 as Some).0: &T); + StorageDead(_26); + StorageDead(_25); + _28 = copy _13; + _29 = AddWithOverflow(copy _13, const 1_usize); + assert(!move (_29.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _13, const 1_usize) -> [success: bb15, unwind unreachable]; + } + + bb15: { + _13 = move (_29.0: usize); + StorageLive(_30); + _30 = (copy _28, copy _27); + _31 = Option::<(usize, &T)>::Some(move _30); + StorageDead(_30); + StorageDead(_29); + StorageDead(_28); + _32 = copy (((_31 as Some).0: (usize, &T)).0: usize); + _33 = copy (((_31 as Some).0: (usize, &T)).1: &T); + StorageLive(_34); + _34 = &_2; + StorageLive(_35); + _35 = (copy _32, copy _33); + _36 = >::call(move _34, move _35) -> [return: bb16, unwind unreachable]; + } + + bb16: { + StorageDead(_35); + StorageDead(_34); + StorageDead(_31); + goto -> bb4; + } + + bb17: { + unreachable; + } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir index 88d0aa7f6240..c539170055d6 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir @@ -6,61 +6,55 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _0: (); let mut _11: std::ptr::NonNull; let mut _12: *const T; - let mut _26: std::option::Option<&T>; - let mut _27: isize; - let mut _29: &impl Fn(&T); - let mut _30: (&T,); - let _31: (); + let mut _24: std::option::Option<&T>; + let mut _25: isize; + let mut _27: &impl Fn(&T); + let mut _28: (&T,); + let _29: (); scope 1 { debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; - let _28: &T; + let _26: &T; scope 2 { - debug x => _28; + debug x => _26; } scope 17 (inlined as Iterator>::next) { let _13: std::ptr::NonNull; let _15: std::ptr::NonNull; let mut _18: bool; let mut _21: std::ptr::NonNull; - let mut _23: bool; - let mut _24: *const u8; - let mut _25: *const T; + let mut _23: usize; scope 18 { let _14: *const T; scope 19 { - let _22: *const u8; + let _22: usize; scope 20 { - scope 21 (inlined null::) { - scope 22 (inlined without_provenance::<()>) { - scope 23 (inlined without_provenance_mut::<()>) { + scope 23 (inlined core::num::::unchecked_sub) { + scope 24 (inlined core::ub_checks::check_language_ub) { + scope 25 (inlined core::ub_checks::check_language_ub::runtime) { } } - scope 24 (inlined std::ptr::from_raw_parts::) { - } } - scope 25 (inlined std::ptr::const_ptr::::wrapping_sub) { - scope 26 (inlined core::num::::wrapping_neg) { - scope 27 (inlined core::num::::wrapping_sub) { - } - } - scope 28 (inlined std::ptr::const_ptr::::wrapping_offset) { - } + scope 26 (inlined without_provenance_mut::) { } } - scope 29 (inlined as PartialEq>::eq) { + scope 21 (inlined std::ptr::const_ptr::::addr) { + scope 22 (inlined std::ptr::const_ptr::::cast::<()>) { + } + } + scope 27 (inlined as PartialEq>::eq) { let mut _16: *mut T; let mut _17: *mut T; - scope 30 (inlined NonNull::::as_ptr) { + scope 28 (inlined NonNull::::as_ptr) { } - scope 31 (inlined NonNull::::as_ptr) { + scope 29 (inlined NonNull::::as_ptr) { } } - scope 32 (inlined NonNull::::add) { + scope 30 (inlined NonNull::::add) { let mut _19: *const T; let mut _20: *const T; - scope 33 (inlined NonNull::::as_ptr) { + scope 31 (inlined NonNull::::as_ptr) { } } } @@ -146,10 +140,11 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb4: { - StorageLive(_26); + StorageLive(_24); StorageLive(_13); StorageLive(_14); StorageLive(_22); + StorageLive(_23); StorageLive(_15); _13 = copy _11; _14 = copy _12; @@ -187,79 +182,72 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb7: { StorageDead(_18); StorageDead(_15); + StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb16; + goto -> bb12; } bb8: { - _22 = copy _14 as *const u8 (PtrToPtr); - StorageLive(_23); - _23 = Eq(copy _22, const {0x0 as *const u8}); - switchInt(move _23) -> [0: bb9, otherwise: bb15]; + _22 = copy _14 as usize (Transmute); + switchInt(copy _22) -> [0: bb9, otherwise: bb10]; } bb9: { + StorageDead(_15); StorageDead(_23); - StorageLive(_24); - _24 = arith_offset::(move _22, const -1_isize) -> [return: bb10, unwind unreachable]; + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb12; } bb10: { - _25 = move _24 as *const T (PtrToPtr); - StorageDead(_24); - _12 = copy _25; + _23 = SubUnchecked(copy _22, const 1_usize); + _12 = copy _23 as *const T (Transmute); goto -> bb11; } bb11: { - _26 = copy _13 as std::option::Option<&T> (Transmute); + _24 = copy _13 as std::option::Option<&T> (Transmute); StorageDead(_15); + StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - _27 = discriminant(_26); - switchInt(move _27) -> [0: bb16, 1: bb12, otherwise: bb14]; + _25 = discriminant(_24); + switchInt(move _25) -> [0: bb12, 1: bb14, otherwise: bb16]; } bb12: { - _28 = copy ((_26 as Some).0: &T); - StorageLive(_29); - _29 = &_2; - StorageLive(_30); - _30 = (copy _28,); - _31 = >::call(move _29, move _30) -> [return: bb13, unwind unreachable]; + StorageDead(_24); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb13, unwind unreachable]; } bb13: { - StorageDead(_30); - StorageDead(_29); - StorageDead(_26); - goto -> bb4; + return; } bb14: { - unreachable; + _26 = copy ((_24 as Some).0: &T); + StorageLive(_27); + _27 = &_2; + StorageLive(_28); + _28 = (copy _26,); + _29 = >::call(move _27, move _28) -> [return: bb15, unwind unreachable]; } bb15: { - StorageDead(_23); - StorageDead(_15); - StorageDead(_22); - StorageDead(_14); - StorageDead(_13); - goto -> bb16; + StorageDead(_28); + StorageDead(_27); + StorageDead(_24); + goto -> bb4; } bb16: { - StorageDead(_26); - StorageDead(_11); - StorageDead(_12); - drop(_2) -> [return: bb17, unwind unreachable]; - } - - bb17: { - return; + unreachable; } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir index f34edc4775d3..dc537ad87402 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir @@ -6,61 +6,55 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _0: (); let mut _11: std::ptr::NonNull; let mut _12: *const T; - let mut _26: std::option::Option<&T>; - let mut _27: isize; - let mut _29: &impl Fn(&T); - let mut _30: (&T,); - let _31: (); + let mut _24: std::option::Option<&T>; + let mut _25: isize; + let mut _27: &impl Fn(&T); + let mut _28: (&T,); + let _29: (); scope 1 { debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; - let _28: &T; + let _26: &T; scope 2 { - debug x => _28; + debug x => _26; } scope 17 (inlined as Iterator>::next) { let _13: std::ptr::NonNull; let _15: std::ptr::NonNull; let mut _18: bool; let mut _21: std::ptr::NonNull; - let mut _23: bool; - let mut _24: *const u8; - let mut _25: *const T; + let mut _23: usize; scope 18 { let _14: *const T; scope 19 { - let _22: *const u8; + let _22: usize; scope 20 { - scope 21 (inlined null::) { - scope 22 (inlined without_provenance::<()>) { - scope 23 (inlined without_provenance_mut::<()>) { + scope 23 (inlined core::num::::unchecked_sub) { + scope 24 (inlined core::ub_checks::check_language_ub) { + scope 25 (inlined core::ub_checks::check_language_ub::runtime) { } } - scope 24 (inlined std::ptr::from_raw_parts::) { - } } - scope 25 (inlined std::ptr::const_ptr::::wrapping_sub) { - scope 26 (inlined core::num::::wrapping_neg) { - scope 27 (inlined core::num::::wrapping_sub) { - } - } - scope 28 (inlined std::ptr::const_ptr::::wrapping_offset) { - } + scope 26 (inlined without_provenance_mut::) { } } - scope 29 (inlined as PartialEq>::eq) { + scope 21 (inlined std::ptr::const_ptr::::addr) { + scope 22 (inlined std::ptr::const_ptr::::cast::<()>) { + } + } + scope 27 (inlined as PartialEq>::eq) { let mut _16: *mut T; let mut _17: *mut T; - scope 30 (inlined NonNull::::as_ptr) { + scope 28 (inlined NonNull::::as_ptr) { } - scope 31 (inlined NonNull::::as_ptr) { + scope 29 (inlined NonNull::::as_ptr) { } } - scope 32 (inlined NonNull::::add) { + scope 30 (inlined NonNull::::add) { let mut _19: *const T; let mut _20: *const T; - scope 33 (inlined NonNull::::as_ptr) { + scope 31 (inlined NonNull::::as_ptr) { } } } @@ -146,10 +140,11 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb4: { - StorageLive(_26); + StorageLive(_24); StorageLive(_13); StorageLive(_14); StorageLive(_22); + StorageLive(_23); StorageLive(_15); _13 = copy _11; _14 = copy _12; @@ -187,87 +182,80 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { bb7: { StorageDead(_18); StorageDead(_15); + StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb18; + goto -> bb12; } bb8: { - _22 = copy _14 as *const u8 (PtrToPtr); - StorageLive(_23); - _23 = Eq(copy _22, const {0x0 as *const u8}); - switchInt(move _23) -> [0: bb9, otherwise: bb17]; + _22 = copy _14 as usize (Transmute); + switchInt(copy _22) -> [0: bb9, otherwise: bb10]; } bb9: { + StorageDead(_15); StorageDead(_23); - StorageLive(_24); - _24 = arith_offset::(move _22, const -1_isize) -> [return: bb10, unwind unreachable]; + StorageDead(_22); + StorageDead(_14); + StorageDead(_13); + goto -> bb12; } bb10: { - _25 = move _24 as *const T (PtrToPtr); - StorageDead(_24); - _12 = copy _25; + _23 = SubUnchecked(copy _22, const 1_usize); + _12 = copy _23 as *const T (Transmute); goto -> bb11; } bb11: { - _26 = copy _13 as std::option::Option<&T> (Transmute); + _24 = copy _13 as std::option::Option<&T> (Transmute); StorageDead(_15); + StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - _27 = discriminant(_26); - switchInt(move _27) -> [0: bb18, 1: bb12, otherwise: bb16]; + _25 = discriminant(_24); + switchInt(move _25) -> [0: bb12, 1: bb14, otherwise: bb18]; } bb12: { - _28 = copy ((_26 as Some).0: &T); - StorageLive(_29); - _29 = &_2; - StorageLive(_30); - _30 = (copy _28,); - _31 = >::call(move _29, move _30) -> [return: bb13, unwind: bb14]; + StorageDead(_24); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb13, unwind continue]; } bb13: { - StorageDead(_30); - StorageDead(_29); - StorageDead(_26); + return; + } + + bb14: { + _26 = copy ((_24 as Some).0: &T); + StorageLive(_27); + _27 = &_2; + StorageLive(_28); + _28 = (copy _26,); + _29 = >::call(move _27, move _28) -> [return: bb15, unwind: bb16]; + } + + bb15: { + StorageDead(_28); + StorageDead(_27); + StorageDead(_24); goto -> bb4; } - bb14 (cleanup): { - drop(_2) -> [return: bb15, unwind terminate(cleanup)]; + bb16 (cleanup): { + drop(_2) -> [return: bb17, unwind terminate(cleanup)]; } - bb15 (cleanup): { + bb17 (cleanup): { resume; } - bb16: { + bb18: { unreachable; } - - bb17: { - StorageDead(_23); - StorageDead(_15); - StorageDead(_22); - StorageDead(_14); - StorageDead(_13); - goto -> bb18; - } - - bb18: { - StorageDead(_26); - StorageDead(_11); - StorageDead(_12); - drop(_2) -> [return: bb19, unwind continue]; - } - - bb19: { - return; - } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir index 975a8a11fb21..0fe469c21f74 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir @@ -8,43 +8,37 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { let _4: std::ptr::NonNull; let mut _7: bool; let mut _10: std::ptr::NonNull; - let mut _12: bool; - let mut _13: *const u8; - let mut _14: *const T; + let mut _12: usize; scope 2 { let _3: *const T; scope 3 { - let _11: *const u8; + let _11: usize; scope 4 { - scope 5 (inlined null::) { - scope 6 (inlined without_provenance::<()>) { - scope 7 (inlined without_provenance_mut::<()>) { + scope 7 (inlined core::num::::unchecked_sub) { + scope 8 (inlined core::ub_checks::check_language_ub) { + scope 9 (inlined core::ub_checks::check_language_ub::runtime) { } } - scope 8 (inlined std::ptr::from_raw_parts::) { - } } - scope 9 (inlined std::ptr::const_ptr::::wrapping_sub) { - scope 10 (inlined core::num::::wrapping_neg) { - scope 11 (inlined core::num::::wrapping_sub) { - } - } - scope 12 (inlined std::ptr::const_ptr::::wrapping_offset) { - } + scope 10 (inlined without_provenance_mut::) { } } - scope 13 (inlined as PartialEq>::eq) { + scope 5 (inlined std::ptr::const_ptr::::addr) { + scope 6 (inlined std::ptr::const_ptr::::cast::<()>) { + } + } + scope 11 (inlined as PartialEq>::eq) { let mut _5: *mut T; let mut _6: *mut T; - scope 14 (inlined NonNull::::as_ptr) { + scope 12 (inlined NonNull::::as_ptr) { } - scope 15 (inlined NonNull::::as_ptr) { + scope 13 (inlined NonNull::::as_ptr) { } } - scope 16 (inlined NonNull::::add) { + scope 14 (inlined NonNull::::add) { let mut _8: *const T; let mut _9: *const T; - scope 17 (inlined NonNull::::as_ptr) { + scope 15 (inlined NonNull::::as_ptr) { } } } @@ -55,6 +49,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_2); StorageLive(_3); StorageLive(_11); + StorageLive(_12); StorageLive(_4); _2 = copy ((*_1).0: std::ptr::NonNull); _3 = copy ((*_1).1: *const T); @@ -92,42 +87,33 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { bb3: { _0 = const {transmute(0x0000000000000000): Option<&T>}; StorageDead(_7); - goto -> bb9; + goto -> bb8; } bb4: { - _11 = copy _3 as *const u8 (PtrToPtr); - StorageLive(_12); - _12 = Eq(copy _11, const {0x0 as *const u8}); - switchInt(move _12) -> [0: bb5, otherwise: bb8]; + _11 = copy _3 as usize (Transmute); + switchInt(copy _11) -> [0: bb5, otherwise: bb6]; } bb5: { - StorageDead(_12); - StorageLive(_13); - _13 = arith_offset::(move _11, const -1_isize) -> [return: bb6, unwind unreachable]; + _0 = const {transmute(0x0000000000000000): Option<&T>}; + goto -> bb8; } bb6: { - _14 = move _13 as *const T (PtrToPtr); - StorageDead(_13); - ((*_1).1: *const T) = copy _14; + _12 = SubUnchecked(copy _11, const 1_usize); + ((*_1).1: *const T) = copy _12 as *const T (Transmute); goto -> bb7; } bb7: { _0 = copy _2 as std::option::Option<&T> (Transmute); - goto -> bb9; + goto -> bb8; } bb8: { - _0 = const {transmute(0x0000000000000000): Option<&T>}; - StorageDead(_12); - goto -> bb9; - } - - bb9: { StorageDead(_4); + StorageDead(_12); StorageDead(_11); StorageDead(_3); StorageDead(_2); diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir index 975a8a11fb21..0fe469c21f74 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir @@ -8,43 +8,37 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { let _4: std::ptr::NonNull; let mut _7: bool; let mut _10: std::ptr::NonNull; - let mut _12: bool; - let mut _13: *const u8; - let mut _14: *const T; + let mut _12: usize; scope 2 { let _3: *const T; scope 3 { - let _11: *const u8; + let _11: usize; scope 4 { - scope 5 (inlined null::) { - scope 6 (inlined without_provenance::<()>) { - scope 7 (inlined without_provenance_mut::<()>) { + scope 7 (inlined core::num::::unchecked_sub) { + scope 8 (inlined core::ub_checks::check_language_ub) { + scope 9 (inlined core::ub_checks::check_language_ub::runtime) { } } - scope 8 (inlined std::ptr::from_raw_parts::) { - } } - scope 9 (inlined std::ptr::const_ptr::::wrapping_sub) { - scope 10 (inlined core::num::::wrapping_neg) { - scope 11 (inlined core::num::::wrapping_sub) { - } - } - scope 12 (inlined std::ptr::const_ptr::::wrapping_offset) { - } + scope 10 (inlined without_provenance_mut::) { } } - scope 13 (inlined as PartialEq>::eq) { + scope 5 (inlined std::ptr::const_ptr::::addr) { + scope 6 (inlined std::ptr::const_ptr::::cast::<()>) { + } + } + scope 11 (inlined as PartialEq>::eq) { let mut _5: *mut T; let mut _6: *mut T; - scope 14 (inlined NonNull::::as_ptr) { + scope 12 (inlined NonNull::::as_ptr) { } - scope 15 (inlined NonNull::::as_ptr) { + scope 13 (inlined NonNull::::as_ptr) { } } - scope 16 (inlined NonNull::::add) { + scope 14 (inlined NonNull::::add) { let mut _8: *const T; let mut _9: *const T; - scope 17 (inlined NonNull::::as_ptr) { + scope 15 (inlined NonNull::::as_ptr) { } } } @@ -55,6 +49,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_2); StorageLive(_3); StorageLive(_11); + StorageLive(_12); StorageLive(_4); _2 = copy ((*_1).0: std::ptr::NonNull); _3 = copy ((*_1).1: *const T); @@ -92,42 +87,33 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { bb3: { _0 = const {transmute(0x0000000000000000): Option<&T>}; StorageDead(_7); - goto -> bb9; + goto -> bb8; } bb4: { - _11 = copy _3 as *const u8 (PtrToPtr); - StorageLive(_12); - _12 = Eq(copy _11, const {0x0 as *const u8}); - switchInt(move _12) -> [0: bb5, otherwise: bb8]; + _11 = copy _3 as usize (Transmute); + switchInt(copy _11) -> [0: bb5, otherwise: bb6]; } bb5: { - StorageDead(_12); - StorageLive(_13); - _13 = arith_offset::(move _11, const -1_isize) -> [return: bb6, unwind unreachable]; + _0 = const {transmute(0x0000000000000000): Option<&T>}; + goto -> bb8; } bb6: { - _14 = move _13 as *const T (PtrToPtr); - StorageDead(_13); - ((*_1).1: *const T) = copy _14; + _12 = SubUnchecked(copy _11, const 1_usize); + ((*_1).1: *const T) = copy _12 as *const T (Transmute); goto -> bb7; } bb7: { _0 = copy _2 as std::option::Option<&T> (Transmute); - goto -> bb9; + goto -> bb8; } bb8: { - _0 = const {transmute(0x0000000000000000): Option<&T>}; - StorageDead(_12); - goto -> bb9; - } - - bb9: { StorageDead(_4); + StorageDead(_12); StorageDead(_11); StorageDead(_3); StorageDead(_2); From 39118d6181df1ffef6e4407bbf273542ae5efe3c Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Thu, 13 Feb 2025 22:53:35 -0800 Subject: [PATCH 043/255] Go back to `Some` instead of transmuting to it. This adds a few more statements to `next`, but optimizes better in the loops (saving 2 blocks in `forward_loop`, for example) --- library/core/src/slice/iter/macros.rs | 2 +- ...ated_loop.PreCodegen.after.panic-abort.mir | 151 +++++++++--------- ...ward_loop.PreCodegen.after.panic-abort.mir | 94 ++++++----- ...ard_loop.PreCodegen.after.panic-unwind.mir | 100 ++++++------ ...iter_next.PreCodegen.after.panic-abort.mir | 16 +- ...ter_next.PreCodegen.after.panic-unwind.mir | 16 +- 6 files changed, 210 insertions(+), 169 deletions(-) diff --git a/library/core/src/slice/iter/macros.rs b/library/core/src/slice/iter/macros.rs index 101f3157651f..c4b8583b75ff 100644 --- a/library/core/src/slice/iter/macros.rs +++ b/library/core/src/slice/iter/macros.rs @@ -173,7 +173,7 @@ macro_rules! iterator { } self.ptr = ptr.add(1); } - crate::intrinsics::transmute::, Option<$elem>>(ptr) + Some({ptr}.$into_ref()) } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir index 80b96e01041e..7ef532d222dc 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-abort.mir @@ -7,27 +7,27 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let mut _11: std::ptr::NonNull; let mut _12: *const T; let mut _13: usize; - let mut _31: std::option::Option<(usize, &T)>; - let mut _34: &impl Fn(usize, &T); - let mut _35: (usize, &T); - let _36: (); + let mut _32: std::option::Option<(usize, &T)>; + let mut _35: &impl Fn(usize, &T); + let mut _36: (usize, &T); + let _37: (); scope 1 { debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).1: *const T) => _12; debug (((iter: Enumerate>).0: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; debug ((iter: Enumerate>).1: usize) => _13; - let _32: usize; - let _33: &T; + let _33: usize; + let _34: &T; scope 2 { - debug i => _32; - debug x => _33; + debug i => _33; + debug x => _34; } scope 19 (inlined > as Iterator>::next) { - let mut _25: std::option::Option<&T>; - let mut _29: (usize, bool); - let mut _30: (usize, &T); + let mut _27: std::option::Option<&T>; + let mut _30: (usize, bool); + let mut _31: (usize, &T); scope 20 { - let _28: usize; + let _29: usize; scope 25 { } } @@ -42,8 +42,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } } scope 26 (inlined as Try>::branch) { - let mut _26: isize; - let _27: &T; + let _28: &T; scope 27 { } } @@ -53,6 +52,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let mut _19: bool; let mut _22: std::ptr::NonNull; let mut _24: usize; + let _26: &T; scope 30 { let _15: *const T; scope 31 { @@ -85,6 +85,13 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { scope 43 (inlined NonNull::::as_ptr) { } } + scope 44 (inlined NonNull::::as_ref::<'_>) { + let _25: *const T; + scope 45 (inlined NonNull::::as_ptr) { + } + scope 46 (inlined std::ptr::mut_ptr::::cast_const) { + } + } } } } @@ -175,15 +182,16 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } bb4: { - StorageLive(_31); - StorageLive(_28); + StorageLive(_32); StorageLive(_29); - StorageLive(_25); + StorageLive(_30); + StorageLive(_27); StorageLive(_14); StorageLive(_15); StorageLive(_23); StorageLive(_24); StorageLive(_16); + StorageLive(_26); _14 = copy _11; _15 = copy _12; switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; @@ -214,103 +222,96 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { StorageDead(_21); _11 = move _22; StorageDead(_22); - goto -> bb11; + goto -> bb13; } bb7: { StorageDead(_19); + StorageDead(_26); StorageDead(_16); StorageDead(_24); StorageDead(_23); StorageDead(_15); StorageDead(_14); - StorageLive(_26); - goto -> bb12; + goto -> bb10; } bb8: { _23 = copy _15 as usize (Transmute); - switchInt(copy _23) -> [0: bb9, otherwise: bb10]; + switchInt(copy _23) -> [0: bb9, otherwise: bb12]; } bb9: { + StorageDead(_26); StorageDead(_16); StorageDead(_24); StorageDead(_23); StorageDead(_15); StorageDead(_14); - StorageLive(_26); - goto -> bb12; + goto -> bb10; } bb10: { - _24 = SubUnchecked(copy _23, const 1_usize); - _12 = copy _24 as *const T (Transmute); - goto -> bb11; + StorageDead(_27); + StorageDead(_30); + StorageDead(_29); + StorageDead(_32); + StorageDead(_11); + StorageDead(_12); + StorageDead(_13); + drop(_2) -> [return: bb11, unwind unreachable]; } bb11: { - _25 = copy _14 as std::option::Option<&T> (Transmute); + return; + } + + bb12: { + _24 = SubUnchecked(copy _23, const 1_usize); + _12 = copy _24 as *const T (Transmute); + goto -> bb13; + } + + bb13: { + StorageLive(_25); + _25 = copy _14 as *const T (Transmute); + _26 = &(*_25); + StorageDead(_25); + _27 = Option::<&T>::Some(copy _26); + StorageDead(_26); StorageDead(_16); StorageDead(_24); StorageDead(_23); StorageDead(_15); StorageDead(_14); - StorageLive(_26); - _26 = discriminant(_25); - switchInt(move _26) -> [0: bb12, 1: bb14, otherwise: bb17]; - } - - bb12: { - StorageDead(_26); - StorageDead(_25); - StorageDead(_29); - StorageDead(_28); - StorageDead(_31); - StorageDead(_11); - StorageDead(_12); - StorageDead(_13); - drop(_2) -> [return: bb13, unwind unreachable]; - } - - bb13: { - return; + _28 = move ((_27 as Some).0: &T); + StorageDead(_27); + _29 = copy _13; + _30 = AddWithOverflow(copy _13, const 1_usize); + assert(!move (_30.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _13, const 1_usize) -> [success: bb14, unwind unreachable]; } bb14: { - _27 = move ((_25 as Some).0: &T); - StorageDead(_26); - StorageDead(_25); - _28 = copy _13; - _29 = AddWithOverflow(copy _13, const 1_usize); - assert(!move (_29.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _13, const 1_usize) -> [success: bb15, unwind unreachable]; + _13 = move (_30.0: usize); + StorageLive(_31); + _31 = (copy _29, copy _28); + _32 = Option::<(usize, &T)>::Some(move _31); + StorageDead(_31); + StorageDead(_30); + StorageDead(_29); + _33 = copy (((_32 as Some).0: (usize, &T)).0: usize); + _34 = copy (((_32 as Some).0: (usize, &T)).1: &T); + StorageLive(_35); + _35 = &_2; + StorageLive(_36); + _36 = (copy _33, copy _34); + _37 = >::call(move _35, move _36) -> [return: bb15, unwind unreachable]; } bb15: { - _13 = move (_29.0: usize); - StorageLive(_30); - _30 = (copy _28, copy _27); - _31 = Option::<(usize, &T)>::Some(move _30); - StorageDead(_30); - StorageDead(_29); - StorageDead(_28); - _32 = copy (((_31 as Some).0: (usize, &T)).0: usize); - _33 = copy (((_31 as Some).0: (usize, &T)).1: &T); - StorageLive(_34); - _34 = &_2; - StorageLive(_35); - _35 = (copy _32, copy _33); - _36 = >::call(move _34, move _35) -> [return: bb16, unwind unreachable]; - } - - bb16: { + StorageDead(_36); StorageDead(_35); - StorageDead(_34); - StorageDead(_31); + StorageDead(_32); goto -> bb4; } - - bb17: { - unreachable; - } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir index c539170055d6..62787f3447ce 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-abort.mir @@ -6,18 +6,17 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _0: (); let mut _11: std::ptr::NonNull; let mut _12: *const T; - let mut _24: std::option::Option<&T>; - let mut _25: isize; - let mut _27: &impl Fn(&T); - let mut _28: (&T,); - let _29: (); + let mut _26: std::option::Option<&T>; + let mut _28: &impl Fn(&T); + let mut _29: (&T,); + let _30: (); scope 1 { debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; - let _26: &T; + let _27: &T; scope 2 { - debug x => _26; + debug x => _27; } scope 17 (inlined as Iterator>::next) { let _13: std::ptr::NonNull; @@ -25,6 +24,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _18: bool; let mut _21: std::ptr::NonNull; let mut _23: usize; + let _25: &T; scope 18 { let _14: *const T; scope 19 { @@ -57,6 +57,13 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { scope 31 (inlined NonNull::::as_ptr) { } } + scope 32 (inlined NonNull::::as_ref::<'_>) { + let _24: *const T; + scope 33 (inlined NonNull::::as_ptr) { + } + scope 34 (inlined std::ptr::mut_ptr::::cast_const) { + } + } } } } @@ -140,12 +147,13 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb4: { - StorageLive(_24); + StorageLive(_26); StorageLive(_13); StorageLive(_14); StorageLive(_22); StorageLive(_23); StorageLive(_15); + StorageLive(_25); _13 = copy _11; _14 = copy _12; switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; @@ -176,78 +184,76 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { StorageDead(_20); _11 = move _21; StorageDead(_21); - goto -> bb11; + goto -> bb13; } bb7: { StorageDead(_18); + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb12; + goto -> bb10; } bb8: { _22 = copy _14 as usize (Transmute); - switchInt(copy _22) -> [0: bb9, otherwise: bb10]; + switchInt(copy _22) -> [0: bb9, otherwise: bb12]; } bb9: { + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb12; + goto -> bb10; } bb10: { - _23 = SubUnchecked(copy _22, const 1_usize); - _12 = copy _23 as *const T (Transmute); - goto -> bb11; + StorageDead(_26); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb11, unwind unreachable]; } bb11: { - _24 = copy _13 as std::option::Option<&T> (Transmute); + return; + } + + bb12: { + _23 = SubUnchecked(copy _22, const 1_usize); + _12 = copy _23 as *const T (Transmute); + goto -> bb13; + } + + bb13: { + StorageLive(_24); + _24 = copy _13 as *const T (Transmute); + _25 = &(*_24); + StorageDead(_24); + _26 = Option::<&T>::Some(copy _25); + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - _25 = discriminant(_24); - switchInt(move _25) -> [0: bb12, 1: bb14, otherwise: bb16]; - } - - bb12: { - StorageDead(_24); - StorageDead(_11); - StorageDead(_12); - drop(_2) -> [return: bb13, unwind unreachable]; - } - - bb13: { - return; + _27 = copy ((_26 as Some).0: &T); + StorageLive(_28); + _28 = &_2; + StorageLive(_29); + _29 = (copy _27,); + _30 = >::call(move _28, move _29) -> [return: bb14, unwind unreachable]; } bb14: { - _26 = copy ((_24 as Some).0: &T); - StorageLive(_27); - _27 = &_2; - StorageLive(_28); - _28 = (copy _26,); - _29 = >::call(move _27, move _28) -> [return: bb15, unwind unreachable]; - } - - bb15: { + StorageDead(_29); StorageDead(_28); - StorageDead(_27); - StorageDead(_24); + StorageDead(_26); goto -> bb4; } - - bb16: { - unreachable; - } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir index dc537ad87402..e5478e279188 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.forward_loop.PreCodegen.after.panic-unwind.mir @@ -6,18 +6,17 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _0: (); let mut _11: std::ptr::NonNull; let mut _12: *const T; - let mut _24: std::option::Option<&T>; - let mut _25: isize; - let mut _27: &impl Fn(&T); - let mut _28: (&T,); - let _29: (); + let mut _26: std::option::Option<&T>; + let mut _28: &impl Fn(&T); + let mut _29: (&T,); + let _30: (); scope 1 { debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull) => _11; debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _12; debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>; - let _26: &T; + let _27: &T; scope 2 { - debug x => _26; + debug x => _27; } scope 17 (inlined as Iterator>::next) { let _13: std::ptr::NonNull; @@ -25,6 +24,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { let mut _18: bool; let mut _21: std::ptr::NonNull; let mut _23: usize; + let _25: &T; scope 18 { let _14: *const T; scope 19 { @@ -57,6 +57,13 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { scope 31 (inlined NonNull::::as_ptr) { } } + scope 32 (inlined NonNull::::as_ref::<'_>) { + let _24: *const T; + scope 33 (inlined NonNull::::as_ptr) { + } + scope 34 (inlined std::ptr::mut_ptr::::cast_const) { + } + } } } } @@ -140,12 +147,13 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } bb4: { - StorageLive(_24); + StorageLive(_26); StorageLive(_13); StorageLive(_14); StorageLive(_22); StorageLive(_23); StorageLive(_15); + StorageLive(_25); _13 = copy _11; _14 = copy _12; switchInt(const ::IS_ZST) -> [0: bb5, otherwise: bb8]; @@ -176,86 +184,84 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { StorageDead(_20); _11 = move _21; StorageDead(_21); - goto -> bb11; + goto -> bb13; } bb7: { StorageDead(_18); + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb12; + goto -> bb10; } bb8: { _22 = copy _14 as usize (Transmute); - switchInt(copy _22) -> [0: bb9, otherwise: bb10]; + switchInt(copy _22) -> [0: bb9, otherwise: bb12]; } bb9: { + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - goto -> bb12; + goto -> bb10; } bb10: { - _23 = SubUnchecked(copy _22, const 1_usize); - _12 = copy _23 as *const T (Transmute); - goto -> bb11; + StorageDead(_26); + StorageDead(_11); + StorageDead(_12); + drop(_2) -> [return: bb11, unwind continue]; } bb11: { - _24 = copy _13 as std::option::Option<&T> (Transmute); + return; + } + + bb12: { + _23 = SubUnchecked(copy _22, const 1_usize); + _12 = copy _23 as *const T (Transmute); + goto -> bb13; + } + + bb13: { + StorageLive(_24); + _24 = copy _13 as *const T (Transmute); + _25 = &(*_24); + StorageDead(_24); + _26 = Option::<&T>::Some(copy _25); + StorageDead(_25); StorageDead(_15); StorageDead(_23); StorageDead(_22); StorageDead(_14); StorageDead(_13); - _25 = discriminant(_24); - switchInt(move _25) -> [0: bb12, 1: bb14, otherwise: bb18]; - } - - bb12: { - StorageDead(_24); - StorageDead(_11); - StorageDead(_12); - drop(_2) -> [return: bb13, unwind continue]; - } - - bb13: { - return; + _27 = copy ((_26 as Some).0: &T); + StorageLive(_28); + _28 = &_2; + StorageLive(_29); + _29 = (copy _27,); + _30 = >::call(move _28, move _29) -> [return: bb14, unwind: bb15]; } bb14: { - _26 = copy ((_24 as Some).0: &T); - StorageLive(_27); - _27 = &_2; - StorageLive(_28); - _28 = (copy _26,); - _29 = >::call(move _27, move _28) -> [return: bb15, unwind: bb16]; - } - - bb15: { + StorageDead(_29); StorageDead(_28); - StorageDead(_27); - StorageDead(_24); + StorageDead(_26); goto -> bb4; } - bb16 (cleanup): { - drop(_2) -> [return: bb17, unwind terminate(cleanup)]; + bb15 (cleanup): { + drop(_2) -> [return: bb16, unwind terminate(cleanup)]; } - bb17 (cleanup): { + bb16 (cleanup): { resume; } - - bb18: { - unreachable; - } } diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir index 0fe469c21f74..b6df2300efb1 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-abort.mir @@ -9,6 +9,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { let mut _7: bool; let mut _10: std::ptr::NonNull; let mut _12: usize; + let _14: &T; scope 2 { let _3: *const T; scope 3 { @@ -41,6 +42,13 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { scope 15 (inlined NonNull::::as_ptr) { } } + scope 16 (inlined NonNull::::as_ref::<'_>) { + let _13: *const T; + scope 17 (inlined NonNull::::as_ptr) { + } + scope 18 (inlined std::ptr::mut_ptr::::cast_const) { + } + } } } } @@ -51,6 +59,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_11); StorageLive(_12); StorageLive(_4); + StorageLive(_14); _2 = copy ((*_1).0: std::ptr::NonNull); _3 = copy ((*_1).1: *const T); switchInt(const ::IS_ZST) -> [0: bb1, otherwise: bb4]; @@ -107,11 +116,16 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { } bb7: { - _0 = copy _2 as std::option::Option<&T> (Transmute); + StorageLive(_13); + _13 = copy _2 as *const T (Transmute); + _14 = &(*_13); + StorageDead(_13); + _0 = Option::<&T>::Some(copy _14); goto -> bb8; } bb8: { + StorageDead(_14); StorageDead(_4); StorageDead(_12); StorageDead(_11); diff --git a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir index 0fe469c21f74..b6df2300efb1 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.slice_iter_next.PreCodegen.after.panic-unwind.mir @@ -9,6 +9,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { let mut _7: bool; let mut _10: std::ptr::NonNull; let mut _12: usize; + let _14: &T; scope 2 { let _3: *const T; scope 3 { @@ -41,6 +42,13 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { scope 15 (inlined NonNull::::as_ptr) { } } + scope 16 (inlined NonNull::::as_ref::<'_>) { + let _13: *const T; + scope 17 (inlined NonNull::::as_ptr) { + } + scope 18 (inlined std::ptr::mut_ptr::::cast_const) { + } + } } } } @@ -51,6 +59,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { StorageLive(_11); StorageLive(_12); StorageLive(_4); + StorageLive(_14); _2 = copy ((*_1).0: std::ptr::NonNull); _3 = copy ((*_1).1: *const T); switchInt(const ::IS_ZST) -> [0: bb1, otherwise: bb4]; @@ -107,11 +116,16 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { } bb7: { - _0 = copy _2 as std::option::Option<&T> (Transmute); + StorageLive(_13); + _13 = copy _2 as *const T (Transmute); + _14 = &(*_13); + StorageDead(_13); + _0 = Option::<&T>::Some(copy _14); goto -> bb8; } bb8: { + StorageDead(_14); StorageDead(_4); StorageDead(_12); StorageDead(_11); From 7add35831955f8fc5ba08dcdb93921cd8de17841 Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Fri, 14 Feb 2025 22:59:19 -0800 Subject: [PATCH 044/255] Add real safety comments --- library/core/src/slice/iter/macros.rs | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/library/core/src/slice/iter/macros.rs b/library/core/src/slice/iter/macros.rs index c4b8583b75ff..b1456a1bc1da 100644 --- a/library/core/src/slice/iter/macros.rs +++ b/library/core/src/slice/iter/macros.rs @@ -159,20 +159,33 @@ macro_rules! iterator { let ptr = self.ptr; let end_or_len = self.end_or_len; - // SAFETY: Type invariants. + // SAFETY: See inner comments. (For some reason having multiple + // block breaks inlining this -- if you can fix that please do!) unsafe { if T::IS_ZST { let len = end_or_len.addr(); if len == 0 { return None; } + // SAFETY: just checked that it's not zero, so subtracting one + // cannot wrap. (Ideally this would be `checked_sub`, which + // does the same thing internally, but as of 2025-02 that + // doesn't optimize quite as small in MIR.) self.end_or_len = without_provenance_mut(len.unchecked_sub(1)); } else { + // SAFETY: by type invariant, the `end_or_len` field is always + // non-null for a non-ZST pointee. (This transmute ensures we + // get `!nonnull` metadata on the load of the field.) if ptr == crate::intrinsics::transmute::<$ptr, NonNull>(end_or_len) { return None; } + // SAFETY: since it's not empty, per the check above, moving + // forward one keeps us inside the slice, and this is valid. self.ptr = ptr.add(1); } + // SAFETY: Now that we know it wasn't empty and we've moved past + // the first one (to avoid giving a duplicate `&mut` next time), + // we can give out a reference to it. Some({ptr}.$into_ref()) } } From 18d7ffa8fc82cd85382339a72b8acaa92c7a25b0 Mon Sep 17 00:00:00 2001 From: "Chai T. Rex" Date: Sat, 15 Feb 2025 15:16:27 -0500 Subject: [PATCH 045/255] Prepare `./x setup` to handle more IDEs; make minor improvements * Order IDEs alphabetically so that manually searching for an IDE is easier, both when running `./x setup` and when editing the source code behind `./x setup` * Prepare for IDEs with spaces in their names * Allow explicitly typing 'none' for the IDE * Change capitalization of `Vscode` to the more standard `VsCode` * Make minor efficiency improvements * Add `'static` annotations where they apply --- src/bootstrap/src/core/build_steps/setup.rs | 66 +++++++++++---------- 1 file changed, 35 insertions(+), 31 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/setup.rs b/src/bootstrap/src/core/build_steps/setup.rs index fbd0dc3ec302..a732008afdea 100644 --- a/src/bootstrap/src/core/build_steps/setup.rs +++ b/src/bootstrap/src/core/build_steps/setup.rs @@ -523,19 +523,19 @@ undesirable, simply delete the `pre-push` file from .git/hooks." /// Handles editor-specific setup differences #[derive(Clone, Debug, Eq, PartialEq)] enum EditorKind { - Vscode, - Vim, Emacs, Helix, + Vim, + VsCode, } impl EditorKind { fn prompt_user() -> io::Result> { let prompt_str = "Available editors: -1. vscode -2. vim -3. emacs -4. helix +1. Emacs +2. Helix +3. Vim +4. VS Code Select which editor you would like to set up [default: None]: "; @@ -543,28 +543,39 @@ Select which editor you would like to set up [default: None]: "; loop { print!("{}", prompt_str); io::stdout().flush()?; - input.clear(); io::stdin().read_line(&mut input)?; - match input.trim().to_lowercase().as_str() { - "1" | "vscode" => return Ok(Some(EditorKind::Vscode)), - "2" | "vim" => return Ok(Some(EditorKind::Vim)), - "3" | "emacs" => return Ok(Some(EditorKind::Emacs)), - "4" | "helix" => return Ok(Some(EditorKind::Helix)), - "" => return Ok(None), + + let mut modified_input = input.to_lowercase(); + modified_input.retain(|ch| !ch.is_whitespace()); + match modified_input.as_str() { + "1" | "emacs" => return Ok(Some(EditorKind::Emacs)), + "2" | "helix" => return Ok(Some(EditorKind::Helix)), + "3" | "vim" => return Ok(Some(EditorKind::Vim)), + "4" | "vscode" => return Ok(Some(EditorKind::VsCode)), + "" | "none" => return Ok(None), _ => { eprintln!("ERROR: unrecognized option '{}'", input.trim()); eprintln!("NOTE: press Ctrl+C to exit"); } - }; + } + + input.clear(); } } /// A list of historical hashes of each LSP settings file /// New entries should be appended whenever this is updated so we can detect /// outdated vs. user-modified settings files. - fn hashes(&self) -> Vec<&str> { + fn hashes(&self) -> &'static [&'static str] { match self { - EditorKind::Vscode | EditorKind::Vim => vec![ + EditorKind::Emacs => &[ + "51068d4747a13732440d1a8b8f432603badb1864fa431d83d0fd4f8fa57039e0", + "d29af4d949bbe2371eac928a3c31cf9496b1701aa1c45f11cd6c759865ad5c45", + ], + EditorKind::Helix => { + &["2d3069b8cf1b977e5d4023965eb6199597755e6c96c185ed5f2854f98b83d233"] + } + EditorKind::Vim | EditorKind::VsCode => &[ "ea67e259dedf60d4429b6c349a564ffcd1563cf41c920a856d1f5b16b4701ac8", "56e7bf011c71c5d81e0bf42e84938111847a810eee69d906bba494ea90b51922", "af1b5efe196aed007577899db9dae15d6dbc923d6fa42fa0934e68617ba9bbe0", @@ -576,13 +587,6 @@ Select which editor you would like to set up [default: None]: "; "4eecb58a2168b252077369da446c30ed0e658301efe69691979d1ef0443928f4", "c394386e6133bbf29ffd32c8af0bb3d4aac354cba9ee051f29612aa9350f8f8d", ], - EditorKind::Emacs => vec![ - "51068d4747a13732440d1a8b8f432603badb1864fa431d83d0fd4f8fa57039e0", - "d29af4d949bbe2371eac928a3c31cf9496b1701aa1c45f11cd6c759865ad5c45", - ], - EditorKind::Helix => { - vec!["2d3069b8cf1b977e5d4023965eb6199597755e6c96c185ed5f2854f98b83d233"] - } } } @@ -592,29 +596,29 @@ Select which editor you would like to set up [default: None]: "; fn settings_short_path(&self) -> PathBuf { self.settings_folder().join(match self { - EditorKind::Vscode => "settings.json", - EditorKind::Vim => "coc-settings.json", EditorKind::Emacs => ".dir-locals.el", EditorKind::Helix => "languages.toml", + EditorKind::Vim => "coc-settings.json", + EditorKind::VsCode => "settings.json", }) } fn settings_folder(&self) -> PathBuf { match self { - EditorKind::Vscode => PathBuf::from(".vscode"), - EditorKind::Vim => PathBuf::from(".vim"), EditorKind::Emacs => PathBuf::new(), EditorKind::Helix => PathBuf::from(".helix"), + EditorKind::Vim => PathBuf::from(".vim"), + EditorKind::VsCode => PathBuf::from(".vscode"), } } - fn settings_template(&self) -> &str { + fn settings_template(&self) -> &'static str { match self { - EditorKind::Vscode | EditorKind::Vim => { - include_str!("../../../../etc/rust_analyzer_settings.json") - } EditorKind::Emacs => include_str!("../../../../etc/rust_analyzer_eglot.el"), EditorKind::Helix => include_str!("../../../../etc/rust_analyzer_helix.toml"), + EditorKind::Vim | EditorKind::VsCode => { + include_str!("../../../../etc/rust_analyzer_settings.json") + } } } From d9f125dcf20f11acea3a7c29c6a3f513350ed964 Mon Sep 17 00:00:00 2001 From: "Chai T. Rex" Date: Sat, 15 Feb 2025 16:28:39 -0500 Subject: [PATCH 046/255] Add support for the Zed IDE to `./x setup` --- src/bootstrap/src/core/build_steps/setup.rs | 10 +++- src/etc/rust_analyzer_zed.json | 52 +++++++++++++++++++++ 2 files changed, 61 insertions(+), 1 deletion(-) create mode 100644 src/etc/rust_analyzer_zed.json diff --git a/src/bootstrap/src/core/build_steps/setup.rs b/src/bootstrap/src/core/build_steps/setup.rs index a732008afdea..523f688bd914 100644 --- a/src/bootstrap/src/core/build_steps/setup.rs +++ b/src/bootstrap/src/core/build_steps/setup.rs @@ -527,6 +527,7 @@ enum EditorKind { Helix, Vim, VsCode, + Zed, } impl EditorKind { @@ -536,6 +537,7 @@ impl EditorKind { 2. Helix 3. Vim 4. VS Code +5. Zed Select which editor you would like to set up [default: None]: "; @@ -552,6 +554,7 @@ Select which editor you would like to set up [default: None]: "; "2" | "helix" => return Ok(Some(EditorKind::Helix)), "3" | "vim" => return Ok(Some(EditorKind::Vim)), "4" | "vscode" => return Ok(Some(EditorKind::VsCode)), + "5" | "zed" => return Ok(Some(EditorKind::Zed)), "" | "none" => return Ok(None), _ => { eprintln!("ERROR: unrecognized option '{}'", input.trim()); @@ -587,6 +590,9 @@ Select which editor you would like to set up [default: None]: "; "4eecb58a2168b252077369da446c30ed0e658301efe69691979d1ef0443928f4", "c394386e6133bbf29ffd32c8af0bb3d4aac354cba9ee051f29612aa9350f8f8d", ], + EditorKind::Zed => { + &["bbce727c269d1bd0c98afef4d612eb4ce27aea3c3a8968c5f10b31affbc40b6c"] + } } } @@ -599,7 +605,7 @@ Select which editor you would like to set up [default: None]: "; EditorKind::Emacs => ".dir-locals.el", EditorKind::Helix => "languages.toml", EditorKind::Vim => "coc-settings.json", - EditorKind::VsCode => "settings.json", + EditorKind::VsCode | EditorKind::Zed => "settings.json", }) } @@ -609,6 +615,7 @@ Select which editor you would like to set up [default: None]: "; EditorKind::Helix => PathBuf::from(".helix"), EditorKind::Vim => PathBuf::from(".vim"), EditorKind::VsCode => PathBuf::from(".vscode"), + EditorKind::Zed => PathBuf::from(".zed"), } } @@ -619,6 +626,7 @@ Select which editor you would like to set up [default: None]: "; EditorKind::Vim | EditorKind::VsCode => { include_str!("../../../../etc/rust_analyzer_settings.json") } + EditorKind::Zed => include_str!("../../../../etc/rust_analyzer_zed.json"), } } diff --git a/src/etc/rust_analyzer_zed.json b/src/etc/rust_analyzer_zed.json new file mode 100644 index 000000000000..469ea0506218 --- /dev/null +++ b/src/etc/rust_analyzer_zed.json @@ -0,0 +1,52 @@ +{ + "lsp": { + "rust-analyzer": { + "initialization_options": { + "cargo": { + "buildScripts": { + "enable": true, + "invocationLocation": "root", + "invocationStrategy": "once", + "overrideCommand": ["python3", "x.py", "check", "--json-output"] + }, + "extraEnv": { + "RUSTC_BOOTSTRAP": "1" + }, + "sysrootSrc": "./library" + }, + "check": { + "invocationLocation": "root", + "invocationStrategy": "once", + "overrideCommand": ["python3", "x.py", "check", "--json-output"] + }, + "linkedProjects": [ + "Cargo.toml", + "library/Cargo.toml", + "src/tools/x/Cargo.toml", + "src/bootstrap/Cargo.toml", + "src/tools/rust-analyzer/Cargo.toml", + "compiler/rustc_codegen_cranelift/Cargo.toml", + "compiler/rustc_codegen_gcc/Cargo.toml" + ], + "procMacro": { + "enable": true, + "server": "${workspaceFolder}/build/host/stage0/libexec/rust-analyzer-proc-macro-srv" + }, + "rustc": { + "source": "./Cargo.toml" + }, + "rustfmt": { + "overrideCommand": [ + "${workspaceFolder}/build/host/rustfmt/bin/rustfmt", + "--edition=2021" + ] + }, + "server": { + "extraEnv": { + "RUSTUP_TOOLCHAIN": "nightly" + } + } + } + } + } +} From 841768422827b76b1b52abea9fd46c451e6aa613 Mon Sep 17 00:00:00 2001 From: "Chai T. Rex" Date: Sat, 15 Feb 2025 18:30:50 -0500 Subject: [PATCH 047/255] Check all IDE config hashes in `./x test bootstrap`, update Helix hash --- src/bootstrap/src/core/build_steps/setup.rs | 17 ++++++++++++--- .../src/core/build_steps/setup/tests.rs | 21 +++++++++++-------- 2 files changed, 26 insertions(+), 12 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/setup.rs b/src/bootstrap/src/core/build_steps/setup.rs index 523f688bd914..f25dfaab0f11 100644 --- a/src/bootstrap/src/core/build_steps/setup.rs +++ b/src/bootstrap/src/core/build_steps/setup.rs @@ -531,6 +531,16 @@ enum EditorKind { } impl EditorKind { + // Used in `./tests.rs`. + #[allow(dead_code)] + pub const ALL: &[EditorKind] = &[ + EditorKind::Emacs, + EditorKind::Helix, + EditorKind::Vim, + EditorKind::VsCode, + EditorKind::Zed, + ]; + fn prompt_user() -> io::Result> { let prompt_str = "Available editors: 1. Emacs @@ -575,9 +585,10 @@ Select which editor you would like to set up [default: None]: "; "51068d4747a13732440d1a8b8f432603badb1864fa431d83d0fd4f8fa57039e0", "d29af4d949bbe2371eac928a3c31cf9496b1701aa1c45f11cd6c759865ad5c45", ], - EditorKind::Helix => { - &["2d3069b8cf1b977e5d4023965eb6199597755e6c96c185ed5f2854f98b83d233"] - } + EditorKind::Helix => &[ + "2d3069b8cf1b977e5d4023965eb6199597755e6c96c185ed5f2854f98b83d233", + "6736d61409fbebba0933afd2e4c44ff2f97c1cb36cf0299a7f4a7819b8775040", + ], EditorKind::Vim | EditorKind::VsCode => &[ "ea67e259dedf60d4429b6c349a564ffcd1563cf41c920a856d1f5b16b4701ac8", "56e7bf011c71c5d81e0bf42e84938111847a810eee69d906bba494ea90b51922", diff --git a/src/bootstrap/src/core/build_steps/setup/tests.rs b/src/bootstrap/src/core/build_steps/setup/tests.rs index f3d4b6aa4db6..e8f83ff75e40 100644 --- a/src/bootstrap/src/core/build_steps/setup/tests.rs +++ b/src/bootstrap/src/core/build_steps/setup/tests.rs @@ -5,13 +5,16 @@ use crate::utils::helpers::hex_encode; #[test] fn check_matching_settings_hash() { - let editor = EditorKind::Vscode; - let mut hasher = sha2::Sha256::new(); - hasher.update(&editor.settings_template()); - let hash = hex_encode(hasher.finalize().as_slice()); - assert_eq!( - &hash, - editor.hashes().last().unwrap(), - "Update `EditorKind::hashes()` with the new hash of `src/etc/rust_analyzer_settings.json`" - ); + for editor in EditorKind::ALL { + let mut hasher = sha2::Sha256::new(); + hasher.update(&editor.settings_template()); + let hash = hex_encode(hasher.finalize().as_slice()); + assert_eq!( + &hash, + editor.hashes().last().unwrap(), + "Update `EditorKind::hashes()` with the new hash of `{}` for `EditorKind::{:?}`", + editor.settings_template(), + editor, + ); + } } From eec49bbf59c922060a5785a47d885529e6cb2ac8 Mon Sep 17 00:00:00 2001 From: HTGAzureX1212 <39023054+HTGAzureX1212@users.noreply.github.com> Date: Fri, 2 Feb 2024 20:49:20 +0800 Subject: [PATCH 048/255] add MAX_LEN_UTF8 and MAX_LEN_UTF16 constants --- library/alloc/src/lib.rs | 1 + library/alloc/src/string.rs | 8 +++++--- library/alloc/tests/lib.rs | 1 + library/alloc/tests/str.rs | 5 +++-- library/core/src/char/methods.rs | 10 ++++++++++ library/core/src/char/mod.rs | 10 ++++++++++ library/core/src/fmt/mod.rs | 6 +++--- library/core/src/str/pattern.rs | 5 +++-- library/coretests/tests/char.rs | 3 ++- library/coretests/tests/lib.rs | 1 + library/std/src/fs/tests.rs | 7 ++++--- library/std/src/lib.rs | 1 + library/std/src/sys/pal/windows/stdio.rs | 3 ++- library/std/src/sys_common/wtf8.rs | 6 +++--- 14 files changed, 49 insertions(+), 18 deletions(-) diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs index 0bb7c432cc35..2795fe5c769d 100644 --- a/library/alloc/src/lib.rs +++ b/library/alloc/src/lib.rs @@ -105,6 +105,7 @@ #![feature(box_uninit_write)] #![feature(bstr)] #![feature(bstr_internals)] +#![feature(char_max_len)] #![feature(clone_to_uninit)] #![feature(coerce_unsized)] #![feature(const_eval_select)] diff --git a/library/alloc/src/string.rs b/library/alloc/src/string.rs index b29f740ef0f2..37e9e05a6a1c 100644 --- a/library/alloc/src/string.rs +++ b/library/alloc/src/string.rs @@ -1419,7 +1419,9 @@ impl String { pub fn push(&mut self, ch: char) { match ch.len_utf8() { 1 => self.vec.push(ch as u8), - _ => self.vec.extend_from_slice(ch.encode_utf8(&mut [0; 4]).as_bytes()), + _ => { + self.vec.extend_from_slice(ch.encode_utf8(&mut [0; char::MAX_LEN_UTF8]).as_bytes()) + } } } @@ -1716,7 +1718,7 @@ impl String { #[rustc_confusables("set")] pub fn insert(&mut self, idx: usize, ch: char) { assert!(self.is_char_boundary(idx)); - let mut bits = [0; 4]; + let mut bits = [0; char::MAX_LEN_UTF8]; let bits = ch.encode_utf8(&mut bits).as_bytes(); unsafe { @@ -2771,7 +2773,7 @@ impl SpecToString for core::ascii::Char { impl SpecToString for char { #[inline] fn spec_to_string(&self) -> String { - String::from(self.encode_utf8(&mut [0; 4])) + String::from(self.encode_utf8(&mut [0; char::MAX_LEN_UTF8])) } } diff --git a/library/alloc/tests/lib.rs b/library/alloc/tests/lib.rs index 391ff04a4b8e..708dfc582a7e 100644 --- a/library/alloc/tests/lib.rs +++ b/library/alloc/tests/lib.rs @@ -3,6 +3,7 @@ #![feature(iter_array_chunks)] #![feature(assert_matches)] #![feature(btree_extract_if)] +#![feature(char_max_len)] #![feature(cow_is_borrowed)] #![feature(core_intrinsics)] #![feature(downcast_unchecked)] diff --git a/library/alloc/tests/str.rs b/library/alloc/tests/str.rs index 6f930ab08535..aeb0e681c226 100644 --- a/library/alloc/tests/str.rs +++ b/library/alloc/tests/str.rs @@ -2,6 +2,7 @@ use std::assert_matches::assert_matches; use std::borrow::Cow; +use std::char::MAX_LEN_UTF8; use std::cmp::Ordering::{Equal, Greater, Less}; use std::str::{from_utf8, from_utf8_unchecked}; @@ -1231,7 +1232,7 @@ fn test_to_uppercase_rev_iterator() { #[test] #[cfg_attr(miri, ignore)] // Miri is too slow fn test_chars_decoding() { - let mut bytes = [0; 4]; + let mut bytes = [0; MAX_LEN_UTF8]; for c in (0..0x110000).filter_map(std::char::from_u32) { let s = c.encode_utf8(&mut bytes); if Some(c) != s.chars().next() { @@ -1243,7 +1244,7 @@ fn test_chars_decoding() { #[test] #[cfg_attr(miri, ignore)] // Miri is too slow fn test_chars_rev_decoding() { - let mut bytes = [0; 4]; + let mut bytes = [0; MAX_LEN_UTF8]; for c in (0..0x110000).filter_map(std::char::from_u32) { let s = c.encode_utf8(&mut bytes); if Some(c) != s.chars().rev().next() { diff --git a/library/core/src/char/methods.rs b/library/core/src/char/methods.rs index ccfdbf0eb704..40137ea44ddc 100644 --- a/library/core/src/char/methods.rs +++ b/library/core/src/char/methods.rs @@ -71,6 +71,16 @@ impl char { #[stable(feature = "assoc_char_consts", since = "1.52.0")] pub const MAX: char = '\u{10FFFF}'; + /// The maximum number of bytes required to [encode](char::encode_utf8) a `char` to + /// UTF-8 encoding. + #[unstable(feature = "char_max_len", issue = "121714")] + pub const MAX_LEN_UTF8: usize = 4; + + /// The maximum number of two-byte units required to [encode](char::encode_utf16) a `char` + /// to UTF-16 encoding. + #[unstable(feature = "char_max_len", issue = "121714")] + pub const MAX_LEN_UTF16: usize = 2; + /// `U+FFFD REPLACEMENT CHARACTER` (�) is used in Unicode to represent a /// decoding error. /// diff --git a/library/core/src/char/mod.rs b/library/core/src/char/mod.rs index 59fd7250e8f8..088c709f1a2a 100644 --- a/library/core/src/char/mod.rs +++ b/library/core/src/char/mod.rs @@ -95,6 +95,16 @@ const MAX_THREE_B: u32 = 0x10000; #[stable(feature = "rust1", since = "1.0.0")] pub const MAX: char = char::MAX; +/// The maximum number of bytes required to [encode](char::encode_utf8) a `char` to +/// UTF-8 encoding. +#[unstable(feature = "char_max_len", issue = "121714")] +pub const MAX_LEN_UTF8: usize = char::MAX_LEN_UTF8; + +/// The maximum number of two-byte units required to [encode](char::encode_utf16) a `char` +/// to UTF-16 encoding. +#[unstable(feature = "char_max_len", issue = "121714")] +pub const MAX_LEN_UTF16: usize = char::MAX_LEN_UTF16; + /// `U+FFFD REPLACEMENT CHARACTER` (�) is used in Unicode to represent a /// decoding error. Use [`char::REPLACEMENT_CHARACTER`] instead. #[stable(feature = "decode_utf16", since = "1.9.0")] diff --git a/library/core/src/fmt/mod.rs b/library/core/src/fmt/mod.rs index a1bf3a4d7a70..764e7fff33ec 100644 --- a/library/core/src/fmt/mod.rs +++ b/library/core/src/fmt/mod.rs @@ -3,7 +3,7 @@ #![stable(feature = "rust1", since = "1.0.0")] use crate::cell::{Cell, Ref, RefCell, RefMut, SyncUnsafeCell, UnsafeCell}; -use crate::char::EscapeDebugExtArgs; +use crate::char::{EscapeDebugExtArgs, MAX_LEN_UTF8}; use crate::marker::PhantomData; use crate::num::fmt as numfmt; use crate::ops::Deref; @@ -187,7 +187,7 @@ pub trait Write { /// ``` #[stable(feature = "fmt_write_char", since = "1.1.0")] fn write_char(&mut self, c: char) -> Result { - self.write_str(c.encode_utf8(&mut [0; 4])) + self.write_str(c.encode_utf8(&mut [0; MAX_LEN_UTF8])) } /// Glue for usage of the [`write!`] macro with implementors of this trait. @@ -2768,7 +2768,7 @@ impl Display for char { if f.options.width.is_none() && f.options.precision.is_none() { f.write_char(*self) } else { - f.pad(self.encode_utf8(&mut [0; 4])) + f.pad(self.encode_utf8(&mut [0; MAX_LEN_UTF8])) } } } diff --git a/library/core/src/str/pattern.rs b/library/core/src/str/pattern.rs index 52e2364893eb..2d941adfd859 100644 --- a/library/core/src/str/pattern.rs +++ b/library/core/src/str/pattern.rs @@ -38,6 +38,7 @@ issue = "27721" )] +use crate::char::MAX_LEN_UTF8; use crate::cmp::Ordering; use crate::convert::TryInto as _; use crate::slice::memchr; @@ -561,8 +562,8 @@ impl Pattern for char { type Searcher<'a> = CharSearcher<'a>; #[inline] - fn into_searcher(self, haystack: &str) -> Self::Searcher<'_> { - let mut utf8_encoded = [0; 4]; + fn into_searcher<'a>(self, haystack: &'a str) -> Self::Searcher<'a> { + let mut utf8_encoded = [0; MAX_LEN_UTF8]; let utf8_size = self .encode_utf8(&mut utf8_encoded) .len() diff --git a/library/coretests/tests/char.rs b/library/coretests/tests/char.rs index 6422387e9560..153fb36925e6 100644 --- a/library/coretests/tests/char.rs +++ b/library/coretests/tests/char.rs @@ -1,3 +1,4 @@ +use std::char::MAX_LEN_UTF8; use std::str::FromStr; use std::{char, str}; @@ -259,7 +260,7 @@ fn test_escape_unicode() { #[test] fn test_encode_utf8() { fn check(input: char, expect: &[u8]) { - let mut buf = [0; 4]; + let mut buf = [0; MAX_LEN_UTF8]; let ptr = buf.as_ptr(); let s = input.encode_utf8(&mut buf); assert_eq!(s.as_ptr() as usize, ptr as usize); diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index 7fe728626085..adceeb101ff3 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -13,6 +13,7 @@ #![feature(bigint_helper_methods)] #![feature(bstr)] #![feature(cell_update)] +#![feature(char_max_len)] #![feature(clone_to_uninit)] #![feature(const_eval_select)] #![feature(const_swap_nonoverlapping)] diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs index 28f16da1ed8d..3e26e7007144 100644 --- a/library/std/src/fs/tests.rs +++ b/library/std/src/fs/tests.rs @@ -1,5 +1,6 @@ use rand::RngCore; +use crate::char::MAX_LEN_UTF8; use crate::fs::{self, File, FileTimes, OpenOptions}; use crate::io::prelude::*; use crate::io::{BorrowedBuf, ErrorKind, SeekFrom}; @@ -155,7 +156,7 @@ fn file_test_io_non_positional_read() { #[test] fn file_test_io_seek_and_tell_smoke_test() { let message = "ten-four"; - let mut read_mem = [0; 4]; + let mut read_mem = [0; MAX_LEN_UTF8]; let set_cursor = 4 as u64; let tell_pos_pre_read; let tell_pos_post_read; @@ -356,7 +357,7 @@ fn file_test_io_seek_shakedown() { let chunk_one: &str = "qwer"; let chunk_two: &str = "asdf"; let chunk_three: &str = "zxcv"; - let mut read_mem = [0; 4]; + let mut read_mem = [0; MAX_LEN_UTF8]; let tmpdir = tmpdir(); let filename = &tmpdir.join("file_rt_io_file_test_seek_shakedown.txt"); { @@ -621,7 +622,7 @@ fn file_test_directoryinfo_readdir() { check!(w.write(msg)); } let files = check!(fs::read_dir(dir)); - let mut mem = [0; 4]; + let mut mem = [0; MAX_LEN_UTF8]; for f in files { let f = f.unwrap().path(); { diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index acb3a0578e50..f75c56d4fa51 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -281,6 +281,7 @@ #![feature(cfg_sanitizer_cfi)] #![feature(cfg_target_thread_local)] #![feature(cfi_encoding)] +#![feature(char_max_len)] #![feature(concat_idents)] #![feature(decl_macro)] #![feature(deprecated_suggestion)] diff --git a/library/std/src/sys/pal/windows/stdio.rs b/library/std/src/sys/pal/windows/stdio.rs index fd3f559ba190..1b245991aa79 100644 --- a/library/std/src/sys/pal/windows/stdio.rs +++ b/library/std/src/sys/pal/windows/stdio.rs @@ -1,5 +1,6 @@ #![unstable(issue = "none", feature = "windows_stdio")] +use core::char::MAX_LEN_UTF8; use core::str::utf8_char_width; use super::api::{self, WinError}; @@ -426,7 +427,7 @@ fn utf16_to_utf8(utf16: &[u16], utf8: &mut [u8]) -> io::Result { impl IncompleteUtf8 { pub const fn new() -> IncompleteUtf8 { - IncompleteUtf8 { bytes: [0; 4], len: 0 } + IncompleteUtf8 { bytes: [0; MAX_LEN_UTF8], len: 0 } } } diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs index 6c60d901ee90..a7704a65fc9f 100644 --- a/library/std/src/sys_common/wtf8.rs +++ b/library/std/src/sys_common/wtf8.rs @@ -18,7 +18,7 @@ #[cfg(test)] mod tests; -use core::char::{encode_utf8_raw, encode_utf16_raw}; +use core::char::{MAX_LEN_UTF8, MAX_LEN_UTF16, encode_utf8_raw, encode_utf16_raw}; use core::clone::CloneToUninit; use core::str::next_code_point; @@ -240,7 +240,7 @@ impl Wtf8Buf { /// Copied from String::push /// This does **not** include the WTF-8 concatenation check or `is_known_utf8` check. fn push_code_point_unchecked(&mut self, code_point: CodePoint) { - let mut bytes = [0; 4]; + let mut bytes = [0; MAX_LEN_UTF8]; let bytes = encode_utf8_raw(code_point.value, &mut bytes); self.bytes.extend_from_slice(bytes) } @@ -1001,7 +1001,7 @@ impl<'a> Iterator for EncodeWide<'a> { return Some(tmp); } - let mut buf = [0; 2]; + let mut buf = [0; MAX_LEN_UTF16]; self.code_points.next().map(|code_point| { let n = encode_utf16_raw(code_point.value, &mut buf).len(); if n == 2 { From 2c1f48970cc7954de147d5f71cd718b9035c6788 Mon Sep 17 00:00:00 2001 From: Yotam Ofek Date: Sat, 15 Feb 2025 21:12:58 +0000 Subject: [PATCH 049/255] fix rustdoc test directives that were accidentally ignored replace "// @" with "//@ ", and fix the tests so they actually pass, after directives are checked --- .../anchor-id-duplicate-method-name-25001.rs | 4 +-- ...long_typename.extremely_long_typename.html | 2 +- tests/rustdoc/extremely_long_typename.rs | 2 +- tests/rustdoc/unsafe-extern-blocks.rs | 26 +++++++++---------- 4 files changed, 17 insertions(+), 17 deletions(-) diff --git a/tests/rustdoc/anchor-id-duplicate-method-name-25001.rs b/tests/rustdoc/anchor-id-duplicate-method-name-25001.rs index e1f19e7e0173..d7f4e587d5ef 100644 --- a/tests/rustdoc/anchor-id-duplicate-method-name-25001.rs +++ b/tests/rustdoc/anchor-id-duplicate-method-name-25001.rs @@ -24,14 +24,14 @@ impl Foo { } impl Bar for Foo { - // @has - '//*[@id="associatedtype.Item"]//h4[@class="code-header"]' 'type Item = T' + //@ has - '//*[@id="associatedtype.Item"]//h4[@class="code-header"]' 'type Item = T' type Item=T; //@ has - '//*[@id="method.quux"]//h4[@class="code-header"]' 'fn quux(self)' fn quux(self) {} } impl<'a, T> Bar for &'a Foo { - // @has - '//*[@id="associatedtype.Item-1"]//h4[@class="code-header"]' "type Item = &'a T" + //@ has - '//*[@id="associatedtype.Item-1"]//h4[@class="code-header"]' "type Item = &'a T" type Item=&'a T; //@ has - '//*[@id="method.quux-1"]//h4[@class="code-header"]' 'fn quux(self)' diff --git a/tests/rustdoc/extremely_long_typename.extremely_long_typename.html b/tests/rustdoc/extremely_long_typename.extremely_long_typename.html index b20e59866dac..64c4d5fb3e3b 100644 --- a/tests/rustdoc/extremely_long_typename.extremely_long_typename.html +++ b/tests/rustdoc/extremely_long_typename.extremely_long_typename.html @@ -1 +1 @@ -
  • CreateSubscriptionPaymentSettingsPaymentMethodOptionsCustomerBalanceBankTransferEuBankTransfer
    • \ No newline at end of file +
    CreateSubscriptionPaymentSettingsPaymentMethodOptionsCustomerBalanceBankTransferEuBankTransfer
    \ No newline at end of file diff --git a/tests/rustdoc/extremely_long_typename.rs b/tests/rustdoc/extremely_long_typename.rs index 212afe2d1103..a87c61e38bd8 100644 --- a/tests/rustdoc/extremely_long_typename.rs +++ b/tests/rustdoc/extremely_long_typename.rs @@ -3,5 +3,5 @@ // the item table has it line wrapped. // There should be some reasonably-placed `` tags in the snapshot file. -// @snapshot extremely_long_typename "extremely_long_typename/index.html" '//ul[@class="item-table"]/li' +//@ snapshot extremely_long_typename "extremely_long_typename/index.html" '//dl[@class="item-table"]/dt' pub struct CreateSubscriptionPaymentSettingsPaymentMethodOptionsCustomerBalanceBankTransferEuBankTransfer; diff --git a/tests/rustdoc/unsafe-extern-blocks.rs b/tests/rustdoc/unsafe-extern-blocks.rs index 829095f300f2..9a4e292dc834 100644 --- a/tests/rustdoc/unsafe-extern-blocks.rs +++ b/tests/rustdoc/unsafe-extern-blocks.rs @@ -2,28 +2,28 @@ #![crate_name = "foo"] -// @has 'foo/index.html' +//@ has 'foo/index.html' // First we check that both the static and the function have a "sup" element // to tell they're unsafe. -// @count - '//ul[@class="item-table"]//sup[@title="unsafe static"]' 1 -// @has - '//ul[@class="item-table"]//sup[@title="unsafe static"]' '⚠' -// @count - '//ul[@class="item-table"]//sup[@title="unsafe function"]' 1 -// @has - '//ul[@class="item-table"]//sup[@title="unsafe function"]' '⚠' +//@ count - '//dl[@class="item-table"]//sup[@title="unsafe static"]' 1 +//@ has - '//dl[@class="item-table"]//sup[@title="unsafe static"]' '⚠' +//@ count - '//dl[@class="item-table"]//sup[@title="unsafe function"]' 1 +//@ has - '//dl[@class="item-table"]//sup[@title="unsafe function"]' '⚠' unsafe extern "C" { - // @has 'foo/static.FOO.html' - // @has - '//pre[@class="rust item-decl"]' 'pub static FOO: i32' + //@ has 'foo/static.FOO.html' + //@ has - '//pre[@class="rust item-decl"]' 'pub static FOO: i32' pub safe static FOO: i32; - // @has 'foo/static.BAR.html' - // @has - '//pre[@class="rust item-decl"]' 'pub unsafe static BAR: i32' + //@ has 'foo/static.BAR.html' + //@ has - '//pre[@class="rust item-decl"]' 'pub unsafe static BAR: i32' pub static BAR: i32; - // @has 'foo/fn.foo.html' - // @has - '//pre[@class="rust item-decl"]' 'pub extern "C" fn foo()' + //@ has 'foo/fn.foo.html' + //@ has - '//pre[@class="rust item-decl"]' 'pub extern "C" fn foo()' pub safe fn foo(); - // @has 'foo/fn.bar.html' - // @has - '//pre[@class="rust item-decl"]' 'pub unsafe extern "C" fn bar()' + //@ has 'foo/fn.bar.html' + //@ has - '//pre[@class="rust item-decl"]' 'pub unsafe extern "C" fn bar()' pub fn bar(); } From 2445dd794e4e24d62ab8d79ba8924baba44865ae Mon Sep 17 00:00:00 2001 From: kulst Date: Sun, 9 Feb 2025 11:50:06 +0100 Subject: [PATCH 050/255] Persist target features used for codegen beyond tcx Bitcode linkers like llvm-bitcode-linker or bpf linker hand over the target features to llvm during link stage. During link stage the `TyCtxt` is already gone so it is not possible to create a query for the global backend features any longer. The features preserved in `Session.target_features` only incorporate target features known to rustc. This would contradict with the behaviour during codegen stage which also passes target features to llvm which are unknown to rustc. This commit adds target features as a field to the `CrateInfo` struct and queries the target features in its new function. This way the target features are preserved beyond tcx and available at link stage. To make sure the `global_backend_features` query is always registered even if the CodegenBackend does not register it, this registration is added to the `provide`function of the `rustc_codegen_ssa` crate. --- compiler/rustc_codegen_ssa/src/base.rs | 1 + compiler/rustc_codegen_ssa/src/lib.rs | 2 ++ 2 files changed, 3 insertions(+) diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index e800492dad02..0b420fcfaae2 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -921,6 +921,7 @@ impl CrateInfo { let n_crates = crates.len(); let mut info = CrateInfo { target_cpu, + target_features: tcx.global_backend_features(()).clone(), crate_types, exported_symbols, linked_symbols, diff --git a/compiler/rustc_codegen_ssa/src/lib.rs b/compiler/rustc_codegen_ssa/src/lib.rs index 428a45975f1e..9d2ac219d592 100644 --- a/compiler/rustc_codegen_ssa/src/lib.rs +++ b/compiler/rustc_codegen_ssa/src/lib.rs @@ -190,6 +190,7 @@ impl From<&cstore::NativeLib> for NativeLib { #[derive(Debug, Encodable, Decodable)] pub struct CrateInfo { pub target_cpu: String, + pub target_features: Vec, pub crate_types: Vec, pub exported_symbols: UnordMap>, pub linked_symbols: FxIndexMap>, @@ -230,6 +231,7 @@ pub fn provide(providers: &mut Providers) { crate::base::provide(providers); crate::target_features::provide(providers); crate::codegen_attrs::provide(providers); + providers.queries.global_backend_features = |_tcx: TyCtxt<'_>, ()| vec![]; } /// Checks if the given filename ends with the `.rcgu.o` extension that `rustc` From 831d9f39e9c330934b7c4f35010477ba4a738d96 Mon Sep 17 00:00:00 2001 From: kulst Date: Wed, 5 Feb 2025 21:33:58 +0100 Subject: [PATCH 051/255] Pass through of target features to llvm-bitcode-linker and handling them The .ptx version produced by llc can be specified by passing it with --mattr. Currently it is not possible to specify the .ptx version with -Ctarget-feature because these are not passed through to llvm-bitcode-linker and handled by it. This commit adds both. --target-feature and -mattr are passed with equals to mitigate issues when the value starts with a - (minus). --- compiler/rustc_codegen_ssa/src/back/link.rs | 6 ++++++ .../src/bin/llvm-bitcode-linker.rs | 6 +++++- src/tools/llvm-bitcode-linker/src/linker.rs | 13 ++++++++++++- 3 files changed, 23 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 105a4cb81f0d..dceef52e81a2 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -2518,6 +2518,12 @@ fn add_order_independent_options( "--target-cpu", &codegen_results.crate_info.target_cpu, ]); + if codegen_results.crate_info.target_features.len() > 0 { + cmd.link_arg(&format!( + "--target-feature={}", + &codegen_results.crate_info.target_features.join(",") + )); + } } else if flavor == LinkerFlavor::Ptx { cmd.link_args(&["--fallback-arch", &codegen_results.crate_info.target_cpu]); } else if flavor == LinkerFlavor::Bpf { diff --git a/src/tools/llvm-bitcode-linker/src/bin/llvm-bitcode-linker.rs b/src/tools/llvm-bitcode-linker/src/bin/llvm-bitcode-linker.rs index fdbf6171c53f..608c6605304f 100644 --- a/src/tools/llvm-bitcode-linker/src/bin/llvm-bitcode-linker.rs +++ b/src/tools/llvm-bitcode-linker/src/bin/llvm-bitcode-linker.rs @@ -27,6 +27,10 @@ pub struct Args { #[arg(long)] target_cpu: Option, + /// The target features + #[arg(long)] + target_feature: Option, + /// Write output to the filename #[arg(short, long)] output: PathBuf, @@ -49,7 +53,7 @@ fn main() -> anyhow::Result<()> { let args = Args::parse(); - let mut linker = Session::new(args.target, args.target_cpu, args.output); + let mut linker = Session::new(args.target, args.target_cpu, args.target_feature, args.output); linker.add_exported_symbols(args.export_symbol); diff --git a/src/tools/llvm-bitcode-linker/src/linker.rs b/src/tools/llvm-bitcode-linker/src/linker.rs index 9f579d100940..dafd847e7680 100644 --- a/src/tools/llvm-bitcode-linker/src/linker.rs +++ b/src/tools/llvm-bitcode-linker/src/linker.rs @@ -8,6 +8,7 @@ use crate::{Optimization, Target}; pub struct Session { target: Target, cpu: Option, + feature: Option, symbols: Vec, /// A file that `llvm-link` supports, like a bitcode file or an archive. @@ -21,7 +22,12 @@ pub struct Session { } impl Session { - pub fn new(target: crate::Target, cpu: Option, out_path: PathBuf) -> Self { + pub fn new( + target: crate::Target, + cpu: Option, + feature: Option, + out_path: PathBuf, + ) -> Self { let link_path = out_path.with_extension("o"); let opt_path = out_path.with_extension("optimized.o"); let sym_path = out_path.with_extension("symbols.txt"); @@ -29,6 +35,7 @@ impl Session { Session { target, cpu, + feature, symbols: Vec::new(), files: Vec::new(), link_path, @@ -134,6 +141,10 @@ impl Session { lcc_command.arg("--mcpu").arg(mcpu); } + if let Some(mattr) = &self.feature { + lcc_command.arg(&format!("--mattr={}", mattr)); + } + let lcc_output = lcc_command .arg(&self.opt_path) .arg("-o").arg(&self.out_path) From 09dc38f23b4aa759d65d2fb940781f080445f685 Mon Sep 17 00:00:00 2001 From: Thalia Archibald Date: Wed, 5 Feb 2025 14:03:50 -0800 Subject: [PATCH 052/255] Improve WTF-8 comments --- library/std/src/sys_common/wtf8.rs | 38 ++++++++++++++++++------------ 1 file changed, 23 insertions(+), 15 deletions(-) diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs index 6c60d901ee90..0d327189d123 100644 --- a/library/std/src/sys_common/wtf8.rs +++ b/library/std/src/sys_common/wtf8.rs @@ -156,9 +156,12 @@ impl ops::DerefMut for Wtf8Buf { } } -/// Format the string with double quotes, -/// and surrogates as `\u` followed by four hexadecimal digits. -/// Example: `"a\u{D800}"` for a string with code points [U+0061, U+D800] +/// Formats the string in double quotes, with characters escaped according to +/// [`char::escape_debug`] and unpaired surrogates represented as `\u{xxxx}`, +/// where each `x` is a hexadecimal digit. +/// +/// For example, the code units [U+0061, U+D800, U+000A] are formatted as +/// `"a\u{D800}\n"`. impl fmt::Debug for Wtf8Buf { #[inline] fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { @@ -181,7 +184,7 @@ impl Wtf8Buf { /// Creates a WTF-8 string from a WTF-8 byte vec. /// - /// Since the byte vec is not checked for valid WTF-8, this functions is + /// Since the byte vec is not checked for valid WTF-8, this function is /// marked unsafe. #[inline] pub unsafe fn from_bytes_unchecked(value: Vec) -> Wtf8Buf { @@ -237,8 +240,9 @@ impl Wtf8Buf { string } - /// Copied from String::push + /// Appends the given `char` to the end of this string. /// This does **not** include the WTF-8 concatenation check or `is_known_utf8` check. + /// Copied from String::push. fn push_code_point_unchecked(&mut self, code_point: CodePoint) { let mut bytes = [0; 4]; let bytes = encode_utf8_raw(code_point.value, &mut bytes); @@ -264,16 +268,16 @@ impl Wtf8Buf { /// /// # Panics /// - /// Panics if the new capacity overflows `usize`. + /// Panics if the new capacity exceeds `isize::MAX` bytes. #[inline] pub fn reserve(&mut self, additional: usize) { self.bytes.reserve(additional) } - /// Tries to reserve capacity for at least `additional` more length units - /// in the given `Wtf8Buf`. The `Wtf8Buf` may reserve more space to avoid - /// frequent reallocations. After calling `try_reserve`, capacity will be - /// greater than or equal to `self.len() + additional`. Does nothing if + /// Tries to reserve capacity for at least `additional` more bytes to be + /// inserted in the given `Wtf8Buf`. The `Wtf8Buf` may reserve more space to + /// avoid frequent reallocations. After calling `try_reserve`, capacity will + /// be greater than or equal to `self.len() + additional`. Does nothing if /// capacity is already sufficient. This method preserves the contents even /// if an error occurs. /// @@ -291,8 +295,8 @@ impl Wtf8Buf { self.bytes.reserve_exact(additional) } - /// Tries to reserve the minimum capacity for exactly `additional` - /// length units in the given `Wtf8Buf`. After calling + /// Tries to reserve the minimum capacity for exactly `additional` more + /// bytes to be inserted in the given `Wtf8Buf`. After calling /// `try_reserve_exact`, capacity will be greater than or equal to /// `self.len() + additional` if it returns `Ok(())`. /// Does nothing if the capacity is already sufficient. @@ -450,6 +454,8 @@ impl Wtf8Buf { match self.next_surrogate(pos) { Some((surrogate_pos, _)) => { pos = surrogate_pos + 3; + // Surrogates and the replacement character are all 3 bytes, + // so they can substituted in-place. self.bytes[surrogate_pos..pos] .copy_from_slice(UTF8_REPLACEMENT_CHARACTER.as_bytes()); } @@ -535,9 +541,9 @@ impl AsInner<[u8]> for Wtf8 { } } -/// Format the slice with double quotes, -/// and surrogates as `\u` followed by four hexadecimal digits. -/// Example: `"a\u{D800}"` for a slice with code points [U+0061, U+D800] +/// Formats the string in double quotes, with characters escaped according to +/// [`char::escape_debug`] and unpaired surrogates represented as `\u{xxxx}`, +/// where each `x` is a hexadecimal digit. impl fmt::Debug for Wtf8 { fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { fn write_str_escaped(f: &mut fmt::Formatter<'_>, s: &str) -> fmt::Result { @@ -562,6 +568,8 @@ impl fmt::Debug for Wtf8 { } } +/// Formats the string with unpaired surrogates substituted with the replacement +/// character, U+FFFD. impl fmt::Display for Wtf8 { fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { let wtf8_bytes = &self.bytes; From 8b1a3a26c7b9db36f8ff6940ecc8e679c659d275 Mon Sep 17 00:00:00 2001 From: Thalia Archibald Date: Wed, 5 Feb 2025 22:46:27 -0800 Subject: [PATCH 053/255] Simplify control flow with while-let --- library/std/src/sys_common/wtf8.rs | 36 ++++++++++++------------------ 1 file changed, 14 insertions(+), 22 deletions(-) diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs index 0d327189d123..f4402fc6f986 100644 --- a/library/std/src/sys_common/wtf8.rs +++ b/library/std/src/sys_common/wtf8.rs @@ -208,7 +208,7 @@ impl Wtf8Buf { /// Since WTF-8 is a superset of UTF-8, this always succeeds. #[inline] pub fn from_str(s: &str) -> Wtf8Buf { - Wtf8Buf { bytes: <[_]>::to_vec(s.as_bytes()), is_known_utf8: true } + Wtf8Buf { bytes: s.as_bytes().to_vec(), is_known_utf8: true } } pub fn clear(&mut self) { @@ -444,24 +444,17 @@ impl Wtf8Buf { /// /// Surrogates are replaced with `"\u{FFFD}"` (the replacement character “�”) pub fn into_string_lossy(mut self) -> String { - // Fast path: If we already have UTF-8, we can return it immediately. - if self.is_known_utf8 { - return unsafe { String::from_utf8_unchecked(self.bytes) }; - } - - let mut pos = 0; - loop { - match self.next_surrogate(pos) { - Some((surrogate_pos, _)) => { - pos = surrogate_pos + 3; - // Surrogates and the replacement character are all 3 bytes, - // so they can substituted in-place. - self.bytes[surrogate_pos..pos] - .copy_from_slice(UTF8_REPLACEMENT_CHARACTER.as_bytes()); - } - None => return unsafe { String::from_utf8_unchecked(self.bytes) }, + if !self.is_known_utf8 { + let mut pos = 0; + while let Some((surrogate_pos, _)) = self.next_surrogate(pos) { + pos = surrogate_pos + 3; + // Surrogates and the replacement character are all 3 bytes, so + // they can substituted in-place. + self.bytes[surrogate_pos..pos] + .copy_from_slice(UTF8_REPLACEMENT_CHARACTER.as_bytes()); } } + unsafe { String::from_utf8_unchecked(self.bytes) } } /// Converts this `Wtf8Buf` into a boxed `Wtf8`. @@ -680,9 +673,8 @@ impl Wtf8 { /// /// This only copies the data if necessary (if it contains any surrogate). pub fn to_string_lossy(&self) -> Cow<'_, str> { - let surrogate_pos = match self.next_surrogate(0) { - None => return Cow::Borrowed(unsafe { str::from_utf8_unchecked(&self.bytes) }), - Some((pos, _)) => pos, + let Some((surrogate_pos, _)) = self.next_surrogate(0) else { + return Cow::Borrowed(unsafe { str::from_utf8_unchecked(&self.bytes) }); }; let wtf8_bytes = &self.bytes; let mut utf8_bytes = Vec::with_capacity(self.len()); @@ -972,7 +964,7 @@ pub struct Wtf8CodePoints<'a> { bytes: slice::Iter<'a, u8>, } -impl<'a> Iterator for Wtf8CodePoints<'a> { +impl Iterator for Wtf8CodePoints<'_> { type Item = CodePoint; #[inline] @@ -998,7 +990,7 @@ pub struct EncodeWide<'a> { // Copied from libunicode/u_str.rs #[stable(feature = "rust1", since = "1.0.0")] -impl<'a> Iterator for EncodeWide<'a> { +impl Iterator for EncodeWide<'_> { type Item = u16; #[inline] From 05e4175d79a7e8f2fc11c3d2ae70bb31a354f130 Mon Sep 17 00:00:00 2001 From: Thalia Archibald Date: Thu, 6 Feb 2025 15:36:42 -0800 Subject: [PATCH 054/255] Synchronize platform adaptors for OsString/OsStr * Order items as the average of the two adaptors. Enables easier diffs. * Consistently apply #[inline]. * Implement FromInner> for bytes::Buf. * Implement Clone::clone_from for wtf8::Buf. --- library/std/src/sys/os_str/bytes.rs | 86 +++++++++++-------- library/std/src/sys/os_str/wtf8.rs | 123 +++++++++++++++++----------- 2 files changed, 127 insertions(+), 82 deletions(-) diff --git a/library/std/src/sys/os_str/bytes.rs b/library/std/src/sys/os_str/bytes.rs index 5b65d862be10..1d337694944b 100644 --- a/library/std/src/sys/os_str/bytes.rs +++ b/library/std/src/sys/os_str/bytes.rs @@ -8,7 +8,7 @@ use crate::collections::TryReserveError; use crate::fmt::Write; use crate::rc::Rc; use crate::sync::Arc; -use crate::sys_common::{AsInner, IntoInner}; +use crate::sys_common::{AsInner, FromInner, IntoInner}; use crate::{fmt, mem, str}; #[cfg(test)] @@ -25,6 +25,37 @@ pub struct Slice { pub inner: [u8], } +impl IntoInner> for Buf { + fn into_inner(self) -> Vec { + self.inner + } +} + +impl FromInner> for Buf { + fn from_inner(inner: Vec) -> Self { + Buf { inner } + } +} + +impl AsInner<[u8]> for Buf { + #[inline] + fn as_inner(&self) -> &[u8] { + &self.inner + } +} + +impl fmt::Debug for Buf { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(self.as_slice(), f) + } +} + +impl fmt::Display for Buf { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Display::fmt(self.as_slice(), f) + } +} + impl fmt::Debug for Slice { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&self.inner.utf8_chunks().debug(), f) @@ -55,18 +86,6 @@ impl fmt::Display for Slice { } } -impl fmt::Debug for Buf { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Debug::fmt(self.as_slice(), formatter) - } -} - -impl fmt::Display for Buf { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(self.as_slice(), formatter) - } -} - impl Clone for Buf { #[inline] fn clone(&self) -> Self { @@ -79,19 +98,6 @@ impl Clone for Buf { } } -impl IntoInner> for Buf { - fn into_inner(self) -> Vec { - self.inner - } -} - -impl AsInner<[u8]> for Buf { - #[inline] - fn as_inner(&self) -> &[u8] { - &self.inner - } -} - impl Buf { #[inline] pub fn into_encoded_bytes(self) -> Vec { @@ -103,6 +109,12 @@ impl Buf { Self { inner: s } } + #[inline] + pub fn into_string(self) -> Result { + String::from_utf8(self.inner).map_err(|p| Buf { inner: p.into_bytes() }) + } + + #[inline] pub fn from_string(s: String) -> Buf { Buf { inner: s.into_bytes() } } @@ -122,6 +134,11 @@ impl Buf { self.inner.capacity() } + #[inline] + pub fn push_slice(&mut self, s: &Slice) { + self.inner.extend_from_slice(&s.inner) + } + #[inline] pub fn reserve(&mut self, additional: usize) { self.inner.reserve(additional) @@ -157,7 +174,7 @@ impl Buf { // SAFETY: Slice just wraps [u8], // and &*self.inner is &[u8], therefore // transmuting &[u8] to &Slice is safe. - unsafe { mem::transmute(&*self.inner) } + unsafe { mem::transmute(self.inner.as_slice()) } } #[inline] @@ -165,15 +182,7 @@ impl Buf { // SAFETY: Slice just wraps [u8], // and &mut *self.inner is &mut [u8], therefore // transmuting &mut [u8] to &mut Slice is safe. - unsafe { mem::transmute(&mut *self.inner) } - } - - pub fn into_string(self) -> Result { - String::from_utf8(self.inner).map_err(|p| Buf { inner: p.into_bytes() }) - } - - pub fn push_slice(&mut self, s: &Slice) { - self.inner.extend_from_slice(&s.inner) + unsafe { mem::transmute(self.inner.as_mut_slice()) } } #[inline] @@ -278,18 +287,22 @@ impl Slice { unsafe { Slice::from_encoded_bytes_unchecked(s.as_bytes()) } } + #[inline] pub fn to_str(&self) -> Result<&str, crate::str::Utf8Error> { str::from_utf8(&self.inner) } + #[inline] pub fn to_string_lossy(&self) -> Cow<'_, str> { String::from_utf8_lossy(&self.inner) } + #[inline] pub fn to_owned(&self) -> Buf { Buf { inner: self.inner.to_vec() } } + #[inline] pub fn clone_into(&self, buf: &mut Buf) { self.inner.clone_into(&mut buf.inner) } @@ -300,6 +313,7 @@ impl Slice { unsafe { mem::transmute(boxed) } } + #[inline] pub fn empty_box() -> Box { let boxed: Box<[u8]> = Default::default(); unsafe { mem::transmute(boxed) } diff --git a/library/std/src/sys/os_str/wtf8.rs b/library/std/src/sys/os_str/wtf8.rs index a4ad5966afe5..19728d33990a 100644 --- a/library/std/src/sys/os_str/wtf8.rs +++ b/library/std/src/sys/os_str/wtf8.rs @@ -10,11 +10,16 @@ use crate::sys_common::wtf8::{Wtf8, Wtf8Buf, check_utf8_boundary}; use crate::sys_common::{AsInner, FromInner, IntoInner}; use crate::{fmt, mem}; -#[derive(Clone, Hash)] +#[derive(Hash)] pub struct Buf { pub inner: Wtf8Buf, } +#[repr(transparent)] +pub struct Slice { + pub inner: Wtf8, +} + impl IntoInner for Buf { fn into_inner(self) -> Wtf8Buf { self.inner @@ -35,31 +40,38 @@ impl AsInner for Buf { } impl fmt::Debug for Buf { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Debug::fmt(self.as_slice(), formatter) + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(self.as_slice(), f) } } impl fmt::Display for Buf { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(self.as_slice(), formatter) + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Display::fmt(self.as_slice(), f) } } -#[repr(transparent)] -pub struct Slice { - pub inner: Wtf8, -} - impl fmt::Debug for Slice { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Debug::fmt(&self.inner, formatter) + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Debug::fmt(&self.inner, f) } } impl fmt::Display for Slice { - fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { - fmt::Display::fmt(&self.inner, formatter) + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + fmt::Display::fmt(&self.inner, f) + } +} + +impl Clone for Buf { + #[inline] + fn clone(&self) -> Self { + Buf { inner: self.inner.clone() } + } + + #[inline] + fn clone_from(&mut self, source: &Self) { + self.inner.clone_from(&source.inner) } } @@ -74,62 +86,57 @@ impl Buf { unsafe { Self { inner: Wtf8Buf::from_bytes_unchecked(s) } } } - pub fn with_capacity(capacity: usize) -> Buf { - Buf { inner: Wtf8Buf::with_capacity(capacity) } - } - - pub fn clear(&mut self) { - self.inner.clear() - } - - pub fn capacity(&self) -> usize { - self.inner.capacity() - } - - pub fn from_string(s: String) -> Buf { - Buf { inner: Wtf8Buf::from_string(s) } - } - - pub fn as_slice(&self) -> &Slice { - // SAFETY: Slice is just a wrapper for Wtf8, - // and self.inner.as_slice() returns &Wtf8. - // Therefore, transmuting &Wtf8 to &Slice is safe. - unsafe { mem::transmute(self.inner.as_slice()) } - } - - pub fn as_mut_slice(&mut self) -> &mut Slice { - // SAFETY: Slice is just a wrapper for Wtf8, - // and self.inner.as_mut_slice() returns &mut Wtf8. - // Therefore, transmuting &mut Wtf8 to &mut Slice is safe. - // Additionally, care should be taken to ensure the slice - // is always valid Wtf8. - unsafe { mem::transmute(self.inner.as_mut_slice()) } - } - + #[inline] pub fn into_string(self) -> Result { self.inner.into_string().map_err(|buf| Buf { inner: buf }) } + #[inline] + pub fn from_string(s: String) -> Buf { + Buf { inner: Wtf8Buf::from_string(s) } + } + + #[inline] + pub fn with_capacity(capacity: usize) -> Buf { + Buf { inner: Wtf8Buf::with_capacity(capacity) } + } + + #[inline] + pub fn clear(&mut self) { + self.inner.clear() + } + + #[inline] + pub fn capacity(&self) -> usize { + self.inner.capacity() + } + + #[inline] pub fn push_slice(&mut self, s: &Slice) { self.inner.push_wtf8(&s.inner) } + #[inline] pub fn reserve(&mut self, additional: usize) { self.inner.reserve(additional) } + #[inline] pub fn try_reserve(&mut self, additional: usize) -> Result<(), TryReserveError> { self.inner.try_reserve(additional) } + #[inline] pub fn reserve_exact(&mut self, additional: usize) { self.inner.reserve_exact(additional) } + #[inline] pub fn try_reserve_exact(&mut self, additional: usize) -> Result<(), TryReserveError> { self.inner.try_reserve_exact(additional) } + #[inline] pub fn shrink_to_fit(&mut self) { self.inner.shrink_to_fit() } @@ -139,6 +146,24 @@ impl Buf { self.inner.shrink_to(min_capacity) } + #[inline] + pub fn as_slice(&self) -> &Slice { + // SAFETY: Slice is just a wrapper for Wtf8, + // and self.inner.as_slice() returns &Wtf8. + // Therefore, transmuting &Wtf8 to &Slice is safe. + unsafe { mem::transmute(self.inner.as_slice()) } + } + + #[inline] + pub fn as_mut_slice(&mut self) -> &mut Slice { + // SAFETY: Slice is just a wrapper for Wtf8, + // and self.inner.as_mut_slice() returns &mut Wtf8. + // Therefore, transmuting &mut Wtf8 to &mut Slice is safe. + // Additionally, care should be taken to ensure the slice + // is always valid Wtf8. + unsafe { mem::transmute(self.inner.as_mut_slice()) } + } + #[inline] pub fn leak<'a>(self) -> &'a mut Slice { unsafe { mem::transmute(self.inner.leak()) } @@ -194,6 +219,7 @@ impl Slice { } #[track_caller] + #[inline] pub fn check_public_boundary(&self, index: usize) { check_utf8_boundary(&self.inner, index); } @@ -203,18 +229,22 @@ impl Slice { unsafe { mem::transmute(Wtf8::from_str(s)) } } + #[inline] pub fn to_str(&self) -> Result<&str, crate::str::Utf8Error> { self.inner.as_str() } + #[inline] pub fn to_string_lossy(&self) -> Cow<'_, str> { self.inner.to_string_lossy() } + #[inline] pub fn to_owned(&self) -> Buf { Buf { inner: self.inner.to_owned() } } + #[inline] pub fn clone_into(&self, buf: &mut Buf) { self.inner.clone_into(&mut buf.inner) } @@ -224,6 +254,7 @@ impl Slice { unsafe { mem::transmute(self.inner.into_box()) } } + #[inline] pub fn empty_box() -> Box { unsafe { mem::transmute(Wtf8::empty_box()) } } From 92fd960ca4144d43f5753019d950193cba9d4194 Mon Sep 17 00:00:00 2001 From: bendn Date: Sun, 16 Feb 2025 17:18:53 +0700 Subject: [PATCH 055/255] stabilize (const_)ptr_sub_ptr --- compiler/rustc_serialize/src/lib.rs | 1 - library/alloc/src/lib.rs | 1 - library/core/src/intrinsics/mod.rs | 1 + library/core/src/ptr/const_ptr.rs | 11 +++----- library/core/src/ptr/mut_ptr.rs | 11 +++----- library/core/src/ptr/non_null.rs | 10 +++---- .../ptr_offset_from_unsigned_neg.rs | 2 -- src/tools/miri/tests/pass/ptr_offset.rs | 1 - tests/ui/consts/offset_from.rs | 3 -- tests/ui/consts/offset_from_ub.rs | 1 - tests/ui/consts/offset_from_ub.stderr | 28 +++++++++---------- 11 files changed, 27 insertions(+), 43 deletions(-) diff --git a/compiler/rustc_serialize/src/lib.rs b/compiler/rustc_serialize/src/lib.rs index 47f72298e22c..9e9b78cfdd57 100644 --- a/compiler/rustc_serialize/src/lib.rs +++ b/compiler/rustc_serialize/src/lib.rs @@ -13,7 +13,6 @@ #![feature(core_intrinsics)] #![feature(min_specialization)] #![feature(never_type)] -#![feature(ptr_sub_ptr)] #![feature(rustdoc_internals)] #![warn(unreachable_pub)] // tidy-alphabetical-end diff --git a/library/alloc/src/lib.rs b/library/alloc/src/lib.rs index 1bb0f7610647..6e4612b709ca 100644 --- a/library/alloc/src/lib.rs +++ b/library/alloc/src/lib.rs @@ -136,7 +136,6 @@ #![feature(pointer_like_trait)] #![feature(ptr_internals)] #![feature(ptr_metadata)] -#![feature(ptr_sub_ptr)] #![feature(set_ptr_value)] #![feature(sized_type_properties)] #![feature(slice_from_ptr_range)] diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 99c42f3626e7..7cc604901ef0 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -3675,6 +3675,7 @@ pub const unsafe fn ptr_offset_from(_ptr: *const T, _base: *const T) -> isize #[rustc_nounwind] #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] +#[rustc_intrinsic_const_stable_indirect] pub const unsafe fn ptr_offset_from_unsigned(_ptr: *const T, _base: *const T) -> usize { unimplemented!() } diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index 974946a7818d..14693de0ae01 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -723,7 +723,6 @@ impl *const T { /// to [`sub`](#method.sub)). The following are all equivalent, assuming /// that their safety preconditions are met: /// ```rust - /// # #![feature(ptr_sub_ptr)] /// # unsafe fn blah(ptr: *const i32, origin: *const i32, count: usize) -> bool { unsafe { /// ptr.sub_ptr(origin) == count /// # && @@ -752,8 +751,6 @@ impl *const T { /// # Examples /// /// ``` - /// #![feature(ptr_sub_ptr)] - /// /// let a = [0; 5]; /// let ptr1: *const i32 = &a[1]; /// let ptr2: *const i32 = &a[3]; @@ -767,8 +764,8 @@ impl *const T { /// // This would be incorrect, as the pointers are not correctly ordered: /// // ptr1.sub_ptr(ptr2) /// ``` - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces pub const unsafe fn sub_ptr(self, origin: *const T) -> usize @@ -812,8 +809,8 @@ impl *const T { /// /// For non-`Sized` pointees this operation considers only the data pointers, /// ignoring the metadata. - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces pub const unsafe fn byte_sub_ptr(self, origin: *const U) -> usize { diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 94ebd0d2522e..6f9019ae0884 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -895,7 +895,6 @@ impl *mut T { /// to [`sub`](#method.sub)). The following are all equivalent, assuming /// that their safety preconditions are met: /// ```rust - /// # #![feature(ptr_sub_ptr)] /// # unsafe fn blah(ptr: *mut i32, origin: *mut i32, count: usize) -> bool { unsafe { /// ptr.sub_ptr(origin) == count /// # && @@ -924,8 +923,6 @@ impl *mut T { /// # Examples /// /// ``` - /// #![feature(ptr_sub_ptr)] - /// /// let mut a = [0; 5]; /// let p: *mut i32 = a.as_mut_ptr(); /// unsafe { @@ -940,8 +937,8 @@ impl *mut T { /// /// // This would be incorrect, as the pointers are not correctly ordered: /// // ptr1.offset_from(ptr2) - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces pub const unsafe fn sub_ptr(self, origin: *const T) -> usize @@ -962,8 +959,8 @@ impl *mut T { /// /// For non-`Sized` pointees this operation considers only the data pointers, /// ignoring the metadata. - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces pub const unsafe fn byte_sub_ptr(self, origin: *mut U) -> usize { diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index f4ac00062d73..befb3ccb14be 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -856,7 +856,6 @@ impl NonNull { /// to [`sub`](#method.sub)). The following are all equivalent, assuming /// that their safety preconditions are met: /// ```rust - /// # #![feature(ptr_sub_ptr)] /// # unsafe fn blah(ptr: std::ptr::NonNull, origin: std::ptr::NonNull, count: usize) -> bool { unsafe { /// ptr.sub_ptr(origin) == count /// # && @@ -885,7 +884,6 @@ impl NonNull { /// # Examples /// /// ``` - /// #![feature(ptr_sub_ptr)] /// use std::ptr::NonNull; /// /// let a = [0; 5]; @@ -903,8 +901,8 @@ impl NonNull { /// ``` #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] pub const unsafe fn sub_ptr(self, subtracted: NonNull) -> usize where T: Sized, @@ -925,8 +923,8 @@ impl NonNull { /// ignoring the metadata. #[inline(always)] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - #[unstable(feature = "ptr_sub_ptr", issue = "95892")] - #[rustc_const_unstable(feature = "const_ptr_sub_ptr", issue = "95892")] + #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] pub const unsafe fn byte_sub_ptr(self, origin: NonNull) -> usize { // SAFETY: the caller must uphold the safety contract for `byte_sub_ptr`. unsafe { self.as_ptr().byte_sub_ptr(origin.as_ptr()) } diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs index 13eb5bfb3421..13874398f7be 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs +++ b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs @@ -1,6 +1,4 @@ //@normalize-stderr-test: "\d+ < \d+" -> "$$ADDR < $$ADDR" -#![feature(ptr_sub_ptr)] - fn main() { let arr = [0u8; 8]; let ptr1 = arr.as_ptr(); diff --git a/src/tools/miri/tests/pass/ptr_offset.rs b/src/tools/miri/tests/pass/ptr_offset.rs index 92b275b00327..a8a0d2836e70 100644 --- a/src/tools/miri/tests/pass/ptr_offset.rs +++ b/src/tools/miri/tests/pass/ptr_offset.rs @@ -1,5 +1,4 @@ //@compile-flags: -Zmiri-permissive-provenance -#![feature(ptr_sub_ptr)] use std::{mem, ptr}; fn main() { diff --git a/tests/ui/consts/offset_from.rs b/tests/ui/consts/offset_from.rs index 7737b5ab0b8a..c06314ac7df0 100644 --- a/tests/ui/consts/offset_from.rs +++ b/tests/ui/consts/offset_from.rs @@ -1,8 +1,5 @@ //@ run-pass -#![feature(const_ptr_sub_ptr)] -#![feature(ptr_sub_ptr)] - struct Struct { field: (), } diff --git a/tests/ui/consts/offset_from_ub.rs b/tests/ui/consts/offset_from_ub.rs index 883569006050..39384bf0c8b9 100644 --- a/tests/ui/consts/offset_from_ub.rs +++ b/tests/ui/consts/offset_from_ub.rs @@ -1,5 +1,4 @@ //@ normalize-stderr: "\d+ bytes" -> "$$BYTES bytes" -#![feature(const_ptr_sub_ptr)] #![feature(core_intrinsics)] use std::intrinsics::{ptr_offset_from, ptr_offset_from_unsigned}; diff --git a/tests/ui/consts/offset_from_ub.stderr b/tests/ui/consts/offset_from_ub.stderr index 1379365cc25c..8cfbdd131909 100644 --- a/tests/ui/consts/offset_from_ub.stderr +++ b/tests/ui/consts/offset_from_ub.stderr @@ -1,5 +1,5 @@ error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:19:27 + --> $DIR/offset_from_ub.rs:18:27 | LL | let offset = unsafe { ptr_offset_from(field_ptr, base_ptr) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers that are not both derived from the same allocation @@ -12,67 +12,67 @@ error[E0080]: evaluation of constant value failed note: inside `std::ptr::const_ptr::::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `NOT_PTR` - --> $DIR/offset_from_ub.rs:25:14 + --> $DIR/offset_from_ub.rs:24:14 | LL | unsafe { (42 as *const u8).offset_from(&5u8) as usize } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:32:14 + --> $DIR/offset_from_ub.rs:31:14 | LL | unsafe { ptr_offset_from(field_ptr, base_ptr as *const u16) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ exact_div: 1_isize cannot be divided by 2_isize without remainder error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:39:14 + --> $DIR/offset_from_ub.rs:38:14 | LL | unsafe { ptr_offset_from(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers that are not both derived from the same allocation error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:48:14 + --> $DIR/offset_from_ub.rs:47:14 | LL | unsafe { ptr_offset_from(end_ptr, start_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers where the memory range between them is not in-bounds of an allocation error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:57:14 + --> $DIR/offset_from_ub.rs:56:14 | LL | unsafe { ptr_offset_from(start_ptr, end_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called on two different pointers where the memory range between them is not in-bounds of an allocation error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:66:14 + --> $DIR/offset_from_ub.rs:65:14 | LL | unsafe { ptr_offset_from_unsigned(field_ptr, base_ptr) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:73:14 + --> $DIR/offset_from_ub.rs:72:14 | LL | unsafe { ptr_offset_from(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far ahead of second error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:79:14 + --> $DIR/offset_from_ub.rs:78:14 | LL | unsafe { ptr_offset_from(ptr1, ptr2) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far before second error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:87:14 + --> $DIR/offset_from_ub.rs:86:14 | LL | unsafe { ptr_offset_from(ptr1, ptr2) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from` called when first pointer is too far before second error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:94:14 + --> $DIR/offset_from_ub.rs:93:14 | LL | unsafe { ptr_offset_from_unsigned(p, p.add(2) ) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer has smaller offset than second: 0 < 8 error[E0080]: evaluation of constant value failed - --> $DIR/offset_from_ub.rs:101:14 + --> $DIR/offset_from_ub.rs:100:14 | LL | unsafe { ptr_offset_from_unsigned(ptr2, ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer is too far ahead of second @@ -85,7 +85,7 @@ error[E0080]: evaluation of constant value failed note: inside `std::ptr::const_ptr::::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `OFFSET_VERY_FAR1` - --> $DIR/offset_from_ub.rs:110:14 + --> $DIR/offset_from_ub.rs:109:14 | LL | unsafe { ptr2.offset_from(ptr1) } | ^^^^^^^^^^^^^^^^^^^^^^ @@ -98,7 +98,7 @@ error[E0080]: evaluation of constant value failed note: inside `std::ptr::const_ptr::::offset_from` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `OFFSET_VERY_FAR2` - --> $DIR/offset_from_ub.rs:116:14 + --> $DIR/offset_from_ub.rs:115:14 | LL | unsafe { ptr1.offset_from(ptr2.wrapping_offset(1)) } | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ From 136f777ae1dbdfee2664503468a9a3231d50925a Mon Sep 17 00:00:00 2001 From: Matthew Jasper Date: Fri, 31 Jan 2025 18:06:38 +0000 Subject: [PATCH 056/255] Report dropck normalization errors in borrowck HIR type checking no longer runs dropck, so we may get new errors when we run it in borrowck. If this happens then rerun the query in a local infcx and report errors for it. --- .../src/type_check/liveness/trace.rs | 57 ++++++++++++++----- .../src/traits/query/dropck_outlives.rs | 51 ++++++++++++++--- 2 files changed, 86 insertions(+), 22 deletions(-) diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 62d49a62744e..75897ba540e2 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -3,7 +3,7 @@ use rustc_index::bit_set::DenseBitSet; use rustc_index::interval::IntervalSet; use rustc_infer::infer::canonical::QueryRegionConstraints; use rustc_infer::infer::outlives::for_liveness; -use rustc_middle::mir::{BasicBlock, Body, ConstraintCategory, Local, Location}; +use rustc_middle::mir::{BasicBlock, Body, ConstraintCategory, HasLocalDecls, Local, Location}; use rustc_middle::traits::query::DropckOutlivesResult; use rustc_middle::ty::relate::Relate; use rustc_middle::ty::{Ty, TyCtxt, TypeVisitable, TypeVisitableExt}; @@ -11,7 +11,10 @@ use rustc_mir_dataflow::ResultsCursor; use rustc_mir_dataflow::impls::MaybeInitializedPlaces; use rustc_mir_dataflow::move_paths::{HasMoveData, MoveData, MovePathIndex}; use rustc_mir_dataflow::points::{DenseLocationMap, PointIndex}; -use rustc_span::DUMMY_SP; +use rustc_span::{DUMMY_SP, Span}; +use rustc_trait_selection::error_reporting::InferCtxtErrorExt; +use rustc_trait_selection::traits::ObligationCtxt; +use rustc_trait_selection::traits::query::dropck_outlives; use rustc_trait_selection::traits::query::type_op::{DropckOutlives, TypeOp, TypeOpOutput}; use tracing::debug; @@ -162,9 +165,10 @@ impl<'a, 'typeck, 'b, 'tcx> LivenessResults<'a, 'typeck, 'b, 'tcx> { fn dropck_boring_locals(&mut self, boring_locals: Vec) { for local in boring_locals { let local_ty = self.cx.body.local_decls[local].ty; + let local_span = self.cx.body.local_decls[local].source_info.span; let drop_data = self.cx.drop_data.entry(local_ty).or_insert_with({ let typeck = &self.cx.typeck; - move || LivenessContext::compute_drop_data(typeck, local_ty) + move || LivenessContext::compute_drop_data(typeck, local_ty, local_span) }); drop_data.dropck_result.report_overflows( @@ -522,9 +526,10 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { values::pretty_print_points(self.location_map, live_at.iter()), ); + let local_span = self.body.local_decls()[dropped_local].source_info.span; let drop_data = self.drop_data.entry(dropped_ty).or_insert_with({ let typeck = &self.typeck; - move || Self::compute_drop_data(typeck, dropped_ty) + move || Self::compute_drop_data(typeck, dropped_ty, local_span) }); if let Some(data) = &drop_data.region_constraint_data { @@ -589,19 +594,45 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { } } - fn compute_drop_data(typeck: &TypeChecker<'_, 'tcx>, dropped_ty: Ty<'tcx>) -> DropData<'tcx> { - debug!("compute_drop_data(dropped_ty={:?})", dropped_ty,); + fn compute_drop_data( + typeck: &TypeChecker<'_, 'tcx>, + dropped_ty: Ty<'tcx>, + span: Span, + ) -> DropData<'tcx> { + debug!("compute_drop_data(dropped_ty={:?})", dropped_ty); - match typeck - .infcx - .param_env - .and(DropckOutlives { dropped_ty }) - .fully_perform(typeck.infcx, DUMMY_SP) - { + let op = typeck.infcx.param_env.and(DropckOutlives { dropped_ty }); + + match op.fully_perform(typeck.infcx, DUMMY_SP) { Ok(TypeOpOutput { output, constraints, .. }) => { DropData { dropck_result: output, region_constraint_data: constraints } } - Err(_) => DropData { dropck_result: Default::default(), region_constraint_data: None }, + Err(_) => { + // We don't run dropck on HIR, and dropck looks inside fields of + // types, so there's no guarantee that it succeeds. We also + // can't rely on the the `ErrorGuaranteed` from `fully_perform` here + // because it comes from delay_span_bug. + let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx); + let errors = match dropck_outlives::compute_dropck_outlives_with_errors( + &ocx, op, span, true, + ) { + Ok(_) => ocx.select_all_or_error(), + Err(e) => { + if e.is_empty() { + ocx.select_all_or_error() + } else { + e + } + } + }; + + if !errors.is_empty() { + typeck.infcx.err_ctxt().report_fulfillment_errors(errors); + } else { + rustc_middle::span_bug!(span, "Rerunning drop data query produced no error."); + } + DropData { dropck_result: Default::default(), region_constraint_data: None } + } } } } diff --git a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs index 92098e204487..03a2e1adda25 100644 --- a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs +++ b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs @@ -2,12 +2,13 @@ use rustc_data_structures::fx::FxHashSet; use rustc_infer::traits::query::type_op::DropckOutlives; use rustc_middle::traits::query::{DropckConstraint, DropckOutlivesResult}; use rustc_middle::ty::{self, EarlyBinder, ParamEnvAnd, Ty, TyCtxt}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::Span; use tracing::{debug, instrument}; +use crate::solve::NextSolverError; use crate::traits::query::NoSolution; use crate::traits::query::normalize::QueryNormalizeExt; -use crate::traits::{Normalized, ObligationCause, ObligationCtxt}; +use crate::traits::{FromSolverError, Normalized, ObligationCause, ObligationCtxt}; /// This returns true if the type `ty` is "trivial" for /// dropck-outlives -- that is, if it doesn't require any types to @@ -93,6 +94,21 @@ pub fn compute_dropck_outlives_inner<'tcx>( goal: ParamEnvAnd<'tcx, DropckOutlives<'tcx>>, span: Span, ) -> Result, NoSolution> { + match compute_dropck_outlives_with_errors(ocx, goal, span, false) { + Ok(r) => Ok(r), + Err(_) => Err(NoSolution), + } +} + +pub fn compute_dropck_outlives_with_errors<'tcx, E>( + ocx: &ObligationCtxt<'_, 'tcx, E>, + goal: ParamEnvAnd<'tcx, DropckOutlives<'tcx>>, + span: Span, + report_errors: bool, +) -> Result, Vec> +where + E: FromSolverError<'tcx, NextSolverError<'tcx>>, +{ let tcx = ocx.infcx.tcx; let ParamEnvAnd { param_env, value: DropckOutlives { dropped_ty } } = goal; @@ -146,14 +162,17 @@ pub fn compute_dropck_outlives_inner<'tcx>( result.overflows.len(), ty_stack.len() ); - dtorck_constraint_for_ty_inner( + match dtorck_constraint_for_ty_inner( tcx, ocx.infcx.typing_env(param_env), - DUMMY_SP, + span, depth, ty, &mut constraints, - )?; + ) { + Err(_) => return Err(Vec::new()), + _ => (), + }; // "outlives" represent types/regions that may be touched // by a destructor. @@ -173,11 +192,25 @@ pub fn compute_dropck_outlives_inner<'tcx>( // do not themselves define a destructor", more or less. We have // to push them onto the stack to be expanded. for ty in constraints.dtorck_types.drain(..) { - let Normalized { value: ty, obligations } = - ocx.infcx.at(&cause, param_env).query_normalize(ty)?; - ocx.register_obligations(obligations); + let ty = if report_errors { + let normalized_ty = ocx.deeply_normalize(&cause, param_env, ty)?; - debug!("dropck_outlives: ty from dtorck_types = {:?}", ty); + let errors = ocx.select_where_possible(); + if !errors.is_empty() { + debug!("failed to normalize dtorck type: {ty} ~> {errors:#?}"); + return Err(errors); + } + normalized_ty + } else if let Ok(Normalized { value: ty, obligations }) = + ocx.infcx.at(&cause, param_env).query_normalize(ty) + { + ocx.register_obligations(obligations); + + debug!("dropck_outlives: ty from dtorck_types = {:?}", ty); + ty + } else { + return Err(Vec::new()); + }; match ty.kind() { // All parameters live for the duration of the From cde8c6f52bf83f3976302a7f7508c962ed6d15ff Mon Sep 17 00:00:00 2001 From: Matthew Jasper Date: Fri, 31 Jan 2025 18:08:09 +0000 Subject: [PATCH 057/255] Handle normalization failures in drop elaboration Drop elaboration looks at fields of a type, which may error when we try to normalize them. Borrowck will have detected this if HIR typeck didn't, but we don't delete the MIR body for errors in borrowck so still have to handle this happening in drop elaboration by checking whether an error has been emitted. --- .../rustc_mir_transform/src/elaborate_drop.rs | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_mir_transform/src/elaborate_drop.rs b/compiler/rustc_mir_transform/src/elaborate_drop.rs index 2de55e38052e..48d9382c055a 100644 --- a/compiler/rustc_mir_transform/src/elaborate_drop.rs +++ b/compiler/rustc_mir_transform/src/elaborate_drop.rs @@ -266,8 +266,21 @@ where let tcx = self.tcx(); assert_eq!(self.elaborator.typing_env().typing_mode, ty::TypingMode::PostAnalysis); - let field_ty = - tcx.normalize_erasing_regions(self.elaborator.typing_env(), f.ty(tcx, args)); + // The type error for normalization may have been in dropck: see + // `compute_drop_data` in rustc_borrowck, in which case we wouldn't have + // deleted the MIR body and could have an error here as well. + let field_ty = match tcx + .try_normalize_erasing_regions(self.elaborator.typing_env(), f.ty(tcx, args)) + { + Ok(t) => t, + Err(_) => Ty::new_error( + self.tcx(), + self.elaborator + .body() + .tainted_by_errors + .expect("Error in drop elaboration not found by dropck."), + ), + }; (tcx.mk_place_field(base_place, field, field_ty), subpath) }) From 87e5969572ebc0d6b97277d4ad06fa3f5a0b7010 Mon Sep 17 00:00:00 2001 From: Matthew Jasper Date: Fri, 31 Jan 2025 18:13:02 +0000 Subject: [PATCH 058/255] Update tests for dropck normalization errors Takes crash tests from #135039, #103899, #91985 and #105299 and turns them into ui tests --- tests/crashes/103899.rs | 27 ------------------- tests/crashes/105299.rs | 19 ------------- .../ui/dropck/dropck-only-error-ambiguity.rs | 23 ++++++++++++++++ .../dropck/dropck-only-error-ambiguity.stderr | 11 ++++++++ .../dropck/dropck-only-error-async.rs} | 13 +++++---- .../ui/dropck/dropck-only-error-async.stderr | 15 +++++++++++ .../dropck/dropck-only-error-gat.rs} | 9 ++++--- tests/ui/dropck/dropck-only-error-gat.stderr | 15 +++++++++++ tests/ui/dropck/dropck-only-error.rs | 23 ++++++++++++++++ tests/ui/dropck/dropck-only-error.stderr | 9 +++++++ tests/ui/typeck/issue-103899.current.stderr | 15 +++++++++++ tests/ui/typeck/issue-103899.next.stderr | 15 +++++++++++ tests/ui/typeck/issue-103899.rs | 5 +--- tests/ui/wf/hir-wf-check-erase-regions.rs | 4 ++- tests/ui/wf/hir-wf-check-erase-regions.stderr | 12 ++++++++- 15 files changed, 154 insertions(+), 61 deletions(-) delete mode 100644 tests/crashes/103899.rs delete mode 100644 tests/crashes/105299.rs create mode 100644 tests/ui/dropck/dropck-only-error-ambiguity.rs create mode 100644 tests/ui/dropck/dropck-only-error-ambiguity.stderr rename tests/{crashes/135039.rs => ui/dropck/dropck-only-error-async.rs} (62%) create mode 100644 tests/ui/dropck/dropck-only-error-async.stderr rename tests/{crashes/91985.rs => ui/dropck/dropck-only-error-gat.rs} (70%) create mode 100644 tests/ui/dropck/dropck-only-error-gat.stderr create mode 100644 tests/ui/dropck/dropck-only-error.rs create mode 100644 tests/ui/dropck/dropck-only-error.stderr create mode 100644 tests/ui/typeck/issue-103899.current.stderr create mode 100644 tests/ui/typeck/issue-103899.next.stderr diff --git a/tests/crashes/103899.rs b/tests/crashes/103899.rs deleted file mode 100644 index 39c2d72bd357..000000000000 --- a/tests/crashes/103899.rs +++ /dev/null @@ -1,27 +0,0 @@ -//@ known-bug: #103899 - -trait BaseWithAssoc { - type Assoc; -} - -trait WrapperWithAssoc { - type BaseAssoc: BaseWithAssoc; -} - -struct Wrapper { - inner: B, -} - -struct ProjectToBase { - data_type_h: T::Assoc, -} - -struct DoubleProject { - buffer: Wrapper>, -} - -fn trigger>() -> DoubleProject { - loop {} -} - -fn main() {} diff --git a/tests/crashes/105299.rs b/tests/crashes/105299.rs deleted file mode 100644 index 8e3aafa47bc9..000000000000 --- a/tests/crashes/105299.rs +++ /dev/null @@ -1,19 +0,0 @@ -//@ known-bug: #105299 - -pub trait Foo: Clone {} - -pub struct Bar<'a, T: Clone> { - pub cow: std::borrow::Cow<'a, [T]>, - - pub THIS_CAUSES_ICE: (), // #1 -} - -impl Bar<'_, T> -where - T: Clone, - [T]: Foo, -{ - pub fn MOVES_SELF(self) {} // #2 -} - -pub fn main() {} diff --git a/tests/ui/dropck/dropck-only-error-ambiguity.rs b/tests/ui/dropck/dropck-only-error-ambiguity.rs new file mode 100644 index 000000000000..ddba2af70703 --- /dev/null +++ b/tests/ui/dropck/dropck-only-error-ambiguity.rs @@ -0,0 +1,23 @@ +// Test that we don't ICE for a typeck error that only shows up in dropck +// Version where the normalization error is an ambiguous trait implementation. +// <[T] as ToOwned>::Owned is ambiguous on whether to use T: Clone or [T]::Clone. +// Regression test for #105299 + +pub trait Foo: Clone {} + +pub struct Bar<'a, T: Clone> { + pub cow: std::borrow::Cow<'a, [T]>, + + pub THIS_CAUSES_ICE: (), +} + +impl Bar<'_, T> +where + T: Clone, + [T]: Foo, +{ + pub fn MOVES_SELF(self) {} + //~^ ERROR type annotations needed +} + +pub fn main() {} diff --git a/tests/ui/dropck/dropck-only-error-ambiguity.stderr b/tests/ui/dropck/dropck-only-error-ambiguity.stderr new file mode 100644 index 000000000000..de19bd49f4e9 --- /dev/null +++ b/tests/ui/dropck/dropck-only-error-ambiguity.stderr @@ -0,0 +1,11 @@ +error[E0284]: type annotations needed + --> $DIR/dropck-only-error-ambiguity.rs:19:23 + | +LL | pub fn MOVES_SELF(self) {} + | ^^^^ cannot infer type + | + = note: cannot satisfy `<[T] as ToOwned>::Owned == _` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0284`. diff --git a/tests/crashes/135039.rs b/tests/ui/dropck/dropck-only-error-async.rs similarity index 62% rename from tests/crashes/135039.rs rename to tests/ui/dropck/dropck-only-error-async.rs index c4c5336fd4fd..71158e3c6ef7 100644 --- a/tests/crashes/135039.rs +++ b/tests/ui/dropck/dropck-only-error-async.rs @@ -1,7 +1,6 @@ -//@ known-bug: #135039 -//@ edition:2021 - -pub type UserId = <::User as AuthUser>::Id; +// Test that we don't ICE for a typeck error that only shows up in dropck +// issue #135039 +//@ edition:2018 pub trait AuthUser { type Id; @@ -13,7 +12,7 @@ pub trait AuthnBackend { pub struct AuthSession { user: Option, - data: Option>, + data: Option<<::User as AuthUser>::Id>, } pub trait Authz: Sized { @@ -27,8 +26,12 @@ pub trait Query { pub async fn run_query + 'static>( auth: AuthSession, + //~^ ERROR the trait bound `User: AuthUser` is not satisfied [E0277] + //~| ERROR the trait bound `User: AuthUser` is not satisfied [E0277] query: Q, ) -> Result { let user = auth.user; query.run().await } + +fn main() {} diff --git a/tests/ui/dropck/dropck-only-error-async.stderr b/tests/ui/dropck/dropck-only-error-async.stderr new file mode 100644 index 000000000000..4a069c8ac33a --- /dev/null +++ b/tests/ui/dropck/dropck-only-error-async.stderr @@ -0,0 +1,15 @@ +error[E0277]: the trait bound `User: AuthUser` is not satisfied + --> $DIR/dropck-only-error-async.rs:28:5 + | +LL | auth: AuthSession, + | ^^^^ the trait `AuthUser` is not implemented for `User` + +error[E0277]: the trait bound `User: AuthUser` is not satisfied + --> $DIR/dropck-only-error-async.rs:28:5 + | +LL | auth: AuthSession, + | ^^^^ the trait `AuthUser` is not implemented for `User` + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/crashes/91985.rs b/tests/ui/dropck/dropck-only-error-gat.rs similarity index 70% rename from tests/crashes/91985.rs rename to tests/ui/dropck/dropck-only-error-gat.rs index 338550430e1f..dadcf76a43f3 100644 --- a/tests/crashes/91985.rs +++ b/tests/ui/dropck/dropck-only-error-gat.rs @@ -1,6 +1,6 @@ -//@ known-bug: #91985 - -#![feature(generic_associated_types)] +// Test that we don't ICE for a typeck error that only shows up in dropck +// Version that uses a generic associated type +// Regression test for #91985 pub trait Trait1 { type Associated: Ord; @@ -22,7 +22,7 @@ impl GatTrait for GatStruct { pub struct OuterStruct { inner: InnerStruct, - t1: T1, + t1: T1, } pub struct InnerStruct { @@ -35,6 +35,7 @@ where T2: Trait2, { pub fn new() -> Self { + //~^ ERROR the trait bound `::Associated: Clone` is not satisfied todo!() } } diff --git a/tests/ui/dropck/dropck-only-error-gat.stderr b/tests/ui/dropck/dropck-only-error-gat.stderr new file mode 100644 index 000000000000..53982c0826a7 --- /dev/null +++ b/tests/ui/dropck/dropck-only-error-gat.stderr @@ -0,0 +1,15 @@ +error[E0277]: the trait bound `::Associated: Clone` is not satisfied + --> $DIR/dropck-only-error-gat.rs:37:21 + | +LL | pub fn new() -> Self { + | ^^^^ the trait `Clone` is not implemented for `::Associated` + | +note: required by a bound in `GatTrait::Gat` + --> $DIR/dropck-only-error-gat.rs:14:17 + | +LL | type Gat; + | ^^^^^ required by this bound in `GatTrait::Gat` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/dropck/dropck-only-error.rs b/tests/ui/dropck/dropck-only-error.rs new file mode 100644 index 000000000000..e85eeb82e00b --- /dev/null +++ b/tests/ui/dropck/dropck-only-error.rs @@ -0,0 +1,23 @@ +// Test that we don't ICE for a typeck error that only shows up in dropck +// issue #135039 + +pub trait AuthUser { + type Id; +} + +pub trait AuthnBackend { + type User: AuthUser; +} + +pub struct AuthSession { + data: Option<<::User as AuthUser>::Id>, +} + +pub trait Authz: Sized { + type AuthnBackend: AuthnBackend; +} + +pub fn run_query(auth: AuthSession) {} +//~^ ERROR the trait bound `User: AuthUser` is not satisfied [E0277] + +fn main() {} diff --git a/tests/ui/dropck/dropck-only-error.stderr b/tests/ui/dropck/dropck-only-error.stderr new file mode 100644 index 000000000000..6c7cd5d296c4 --- /dev/null +++ b/tests/ui/dropck/dropck-only-error.stderr @@ -0,0 +1,9 @@ +error[E0277]: the trait bound `User: AuthUser` is not satisfied + --> $DIR/dropck-only-error.rs:20:31 + | +LL | pub fn run_query(auth: AuthSession) {} + | ^^^^ the trait `AuthUser` is not implemented for `User` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/typeck/issue-103899.current.stderr b/tests/ui/typeck/issue-103899.current.stderr new file mode 100644 index 000000000000..a3a164907be4 --- /dev/null +++ b/tests/ui/typeck/issue-103899.current.stderr @@ -0,0 +1,15 @@ +error[E0277]: the trait bound `(): BaseWithAssoc` is not satisfied + --> $DIR/issue-103899.rs:24:54 + | +LL | fn trigger>() -> DoubleProject { + | ^^^^^^^^^^^^^^^^ the trait `BaseWithAssoc` is not implemented for `()` + | +help: this trait has no implementations, consider adding one + --> $DIR/issue-103899.rs:4:1 + | +LL | trait BaseWithAssoc { + | ^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/typeck/issue-103899.next.stderr b/tests/ui/typeck/issue-103899.next.stderr new file mode 100644 index 000000000000..a3a164907be4 --- /dev/null +++ b/tests/ui/typeck/issue-103899.next.stderr @@ -0,0 +1,15 @@ +error[E0277]: the trait bound `(): BaseWithAssoc` is not satisfied + --> $DIR/issue-103899.rs:24:54 + | +LL | fn trigger>() -> DoubleProject { + | ^^^^^^^^^^^^^^^^ the trait `BaseWithAssoc` is not implemented for `()` + | +help: this trait has no implementations, consider adding one + --> $DIR/issue-103899.rs:4:1 + | +LL | trait BaseWithAssoc { + | ^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/typeck/issue-103899.rs b/tests/ui/typeck/issue-103899.rs index 81ab92a8994c..92356ecf288b 100644 --- a/tests/ui/typeck/issue-103899.rs +++ b/tests/ui/typeck/issue-103899.rs @@ -1,9 +1,5 @@ //@ revisions: current next //@ ignore-compare-mode-next-solver (explicit revisions) -//@ check-fail -//@ failure-status: 101 -//@ dont-check-compiler-stderr -//@ known-bug: #103899 trait BaseWithAssoc { type Assoc; @@ -26,6 +22,7 @@ struct DoubleProject { } fn trigger>() -> DoubleProject { + //~^ ERROR the trait bound `(): BaseWithAssoc` is not satisfied [E0277] loop {} } diff --git a/tests/ui/wf/hir-wf-check-erase-regions.rs b/tests/ui/wf/hir-wf-check-erase-regions.rs index 01893044c278..20cc1cfe7301 100644 --- a/tests/ui/wf/hir-wf-check-erase-regions.rs +++ b/tests/ui/wf/hir-wf-check-erase-regions.rs @@ -8,7 +8,9 @@ impl<'a, T, const N: usize> IntoIterator for &'a Table { //~^ ERROR `&'a T` is not an iterator type Item = &'a T; - fn into_iter(self) -> Self::IntoIter { //~ ERROR `&'a T` is not an iterator + fn into_iter(self) -> Self::IntoIter { + //~^ ERROR `&'a T` is not an iterator + //~| ERROR `&T` is not an iterator unimplemented!() } } diff --git a/tests/ui/wf/hir-wf-check-erase-regions.stderr b/tests/ui/wf/hir-wf-check-erase-regions.stderr index 4b696dc1d1df..e4d48bf82c00 100644 --- a/tests/ui/wf/hir-wf-check-erase-regions.stderr +++ b/tests/ui/wf/hir-wf-check-erase-regions.stderr @@ -34,6 +34,16 @@ LL | fn into_iter(self) -> Self::IntoIter { note: required by a bound in `Flatten` --> $SRC_DIR/core/src/iter/adapters/flatten.rs:LL:COL -error: aborting due to 3 previous errors +error[E0277]: `&T` is not an iterator + --> $DIR/hir-wf-check-erase-regions.rs:11:27 + | +LL | fn into_iter(self) -> Self::IntoIter { + | ^^^^^^^^^^^^^^ `&T` is not an iterator + | + = help: the trait `Iterator` is not implemented for `&T` + = help: the trait `Iterator` is implemented for `&mut I` + = note: required for `&T` to implement `IntoIterator` + +error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0277`. From 49cf00c7c04e24bb27a09fbcfe9bac9278075608 Mon Sep 17 00:00:00 2001 From: Matthew Jasper Date: Tue, 11 Feb 2025 15:36:24 +0000 Subject: [PATCH 059/255] Clean up dropck code a bit - Remove `Result` that couldn't be Err on valid compilation. - Always compute errors on failure. --- .../src/type_check/liveness/trace.rs | 24 ++++---- compiler/rustc_middle/src/query/mod.rs | 2 +- .../src/traits/query/dropck_outlives.rs | 56 +++++++------------ compiler/rustc_traits/src/dropck_outlives.rs | 11 ++-- 4 files changed, 38 insertions(+), 55 deletions(-) diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 75897ba540e2..148e75aa84cc 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -4,6 +4,7 @@ use rustc_index::interval::IntervalSet; use rustc_infer::infer::canonical::QueryRegionConstraints; use rustc_infer::infer::outlives::for_liveness; use rustc_middle::mir::{BasicBlock, Body, ConstraintCategory, HasLocalDecls, Local, Location}; +use rustc_middle::span_bug; use rustc_middle::traits::query::DropckOutlivesResult; use rustc_middle::ty::relate::Relate; use rustc_middle::ty::{Ty, TyCtxt, TypeVisitable, TypeVisitableExt}; @@ -613,23 +614,22 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { // can't rely on the the `ErrorGuaranteed` from `fully_perform` here // because it comes from delay_span_bug. let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx); - let errors = match dropck_outlives::compute_dropck_outlives_with_errors( - &ocx, op, span, true, - ) { - Ok(_) => ocx.select_all_or_error(), - Err(e) => { - if e.is_empty() { - ocx.select_all_or_error() - } else { - e + let errors = + match dropck_outlives::compute_dropck_outlives_with_errors(&ocx, op, span) { + Ok(_) => ocx.select_all_or_error(), + Err(e) => { + if e.is_empty() { + ocx.select_all_or_error() + } else { + e + } } - } - }; + }; if !errors.is_empty() { typeck.infcx.err_ctxt().report_fulfillment_errors(errors); } else { - rustc_middle::span_bug!(span, "Rerunning drop data query produced no error."); + span_bug!(span, "Rerunning drop data query produced no error."); } DropData { dropck_result: Default::default(), region_constraint_data: None } } diff --git a/compiler/rustc_middle/src/query/mod.rs b/compiler/rustc_middle/src/query/mod.rs index cd81890598e7..3b74a513f213 100644 --- a/compiler/rustc_middle/src/query/mod.rs +++ b/compiler/rustc_middle/src/query/mod.rs @@ -802,7 +802,7 @@ rustc_queries! { query adt_dtorck_constraint( key: DefId - ) -> Result<&'tcx DropckConstraint<'tcx>, NoSolution> { + ) -> &'tcx DropckConstraint<'tcx> { desc { |tcx| "computing drop-check constraints for `{}`", tcx.def_path_str(key) } } diff --git a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs index 03a2e1adda25..f04a5feba301 100644 --- a/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs +++ b/compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs @@ -94,7 +94,7 @@ pub fn compute_dropck_outlives_inner<'tcx>( goal: ParamEnvAnd<'tcx, DropckOutlives<'tcx>>, span: Span, ) -> Result, NoSolution> { - match compute_dropck_outlives_with_errors(ocx, goal, span, false) { + match compute_dropck_outlives_with_errors(ocx, goal, span) { Ok(r) => Ok(r), Err(_) => Err(NoSolution), } @@ -104,7 +104,6 @@ pub fn compute_dropck_outlives_with_errors<'tcx, E>( ocx: &ObligationCtxt<'_, 'tcx, E>, goal: ParamEnvAnd<'tcx, DropckOutlives<'tcx>>, span: Span, - report_errors: bool, ) -> Result, Vec> where E: FromSolverError<'tcx, NextSolverError<'tcx>>, @@ -162,17 +161,14 @@ where result.overflows.len(), ty_stack.len() ); - match dtorck_constraint_for_ty_inner( + dtorck_constraint_for_ty_inner( tcx, ocx.infcx.typing_env(param_env), span, depth, ty, &mut constraints, - ) { - Err(_) => return Err(Vec::new()), - _ => (), - }; + ); // "outlives" represent types/regions that may be touched // by a destructor. @@ -192,16 +188,7 @@ where // do not themselves define a destructor", more or less. We have // to push them onto the stack to be expanded. for ty in constraints.dtorck_types.drain(..) { - let ty = if report_errors { - let normalized_ty = ocx.deeply_normalize(&cause, param_env, ty)?; - - let errors = ocx.select_where_possible(); - if !errors.is_empty() { - debug!("failed to normalize dtorck type: {ty} ~> {errors:#?}"); - return Err(errors); - } - normalized_ty - } else if let Ok(Normalized { value: ty, obligations }) = + let ty = if let Ok(Normalized { value: ty, obligations }) = ocx.infcx.at(&cause, param_env).query_normalize(ty) { ocx.register_obligations(obligations); @@ -209,7 +196,11 @@ where debug!("dropck_outlives: ty from dtorck_types = {:?}", ty); ty } else { - return Err(Vec::new()); + ocx.deeply_normalize(&cause, param_env, ty)?; + + let errors = ocx.select_where_possible(); + debug!("normalize errors: {ty} ~> {errors:#?}"); + return Err(errors); }; match ty.kind() { @@ -246,14 +237,14 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( depth: usize, ty: Ty<'tcx>, constraints: &mut DropckConstraint<'tcx>, -) -> Result<(), NoSolution> { +) { if !tcx.recursion_limit().value_within_limit(depth) { constraints.overflows.push(ty); - return Ok(()); + return; } if trivial_dropck_outlives(tcx, ty) { - return Ok(()); + return; } match ty.kind() { @@ -277,22 +268,20 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( // single-element containers, behave like their element rustc_data_structures::stack::ensure_sufficient_stack(|| { dtorck_constraint_for_ty_inner(tcx, typing_env, span, depth + 1, *ety, constraints) - })?; + }); } ty::Tuple(tys) => rustc_data_structures::stack::ensure_sufficient_stack(|| { for ty in tys.iter() { - dtorck_constraint_for_ty_inner(tcx, typing_env, span, depth + 1, ty, constraints)?; + dtorck_constraint_for_ty_inner(tcx, typing_env, span, depth + 1, ty, constraints); } - Ok::<_, NoSolution>(()) - })?, + }), ty::Closure(_, args) => rustc_data_structures::stack::ensure_sufficient_stack(|| { for ty in args.as_closure().upvar_tys() { - dtorck_constraint_for_ty_inner(tcx, typing_env, span, depth + 1, ty, constraints)?; + dtorck_constraint_for_ty_inner(tcx, typing_env, span, depth + 1, ty, constraints); } - Ok::<_, NoSolution>(()) - })?, + }), ty::CoroutineClosure(_, args) => { rustc_data_structures::stack::ensure_sufficient_stack(|| { @@ -304,10 +293,9 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( depth + 1, ty, constraints, - )?; + ); } - Ok::<_, NoSolution>(()) - })? + }) } ty::Coroutine(_, args) => { @@ -346,7 +334,7 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( ty::Adt(def, args) => { let DropckConstraint { dtorck_types, outlives, overflows } = - tcx.at(span).adt_dtorck_constraint(def.did())?; + tcx.at(span).adt_dtorck_constraint(def.did()); // FIXME: we can try to recursively `dtorck_constraint_on_ty` // there, but that needs some way to handle cycles. constraints @@ -379,9 +367,7 @@ pub fn dtorck_constraint_for_ty_inner<'tcx>( ty::Placeholder(..) | ty::Bound(..) | ty::Infer(..) | ty::Error(_) => { // By the time this code runs, all type variables ought to // be fully resolved. - return Err(NoSolution); + tcx.dcx().span_delayed_bug(span, format!("Unresolved type in dropck: {:?}.", ty)); } } - - Ok(()) } diff --git a/compiler/rustc_traits/src/dropck_outlives.rs b/compiler/rustc_traits/src/dropck_outlives.rs index b3377e15aa79..5eddad39e2be 100644 --- a/compiler/rustc_traits/src/dropck_outlives.rs +++ b/compiler/rustc_traits/src/dropck_outlives.rs @@ -30,10 +30,7 @@ fn dropck_outlives<'tcx>( } /// Calculates the dtorck constraint for a type. -pub(crate) fn adt_dtorck_constraint( - tcx: TyCtxt<'_>, - def_id: DefId, -) -> Result<&DropckConstraint<'_>, NoSolution> { +pub(crate) fn adt_dtorck_constraint(tcx: TyCtxt<'_>, def_id: DefId) -> &DropckConstraint<'_> { let def = tcx.adt_def(def_id); let span = tcx.def_span(def_id); let typing_env = ty::TypingEnv::non_body_analysis(tcx, def_id); @@ -52,20 +49,20 @@ pub(crate) fn adt_dtorck_constraint( overflows: vec![], }; debug!("dtorck_constraint: {:?} => {:?}", def, result); - return Ok(tcx.arena.alloc(result)); + return tcx.arena.alloc(result); } let mut result = DropckConstraint::empty(); for field in def.all_fields() { let fty = tcx.type_of(field.did).instantiate_identity(); - dtorck_constraint_for_ty_inner(tcx, typing_env, span, 0, fty, &mut result)?; + dtorck_constraint_for_ty_inner(tcx, typing_env, span, 0, fty, &mut result); } result.outlives.extend(tcx.destructor_constraints(def)); dedup_dtorck_constraint(&mut result); debug!("dtorck_constraint: {:?} => {:?}", def, result); - Ok(tcx.arena.alloc(result)) + tcx.arena.alloc(result) } fn dedup_dtorck_constraint(c: &mut DropckConstraint<'_>) { From 17f2928caa78b665989fc48f204bcd9b4327a746 Mon Sep 17 00:00:00 2001 From: Pyrode Date: Fri, 14 Feb 2025 16:58:14 +0530 Subject: [PATCH 060/255] Adds binary_format to rustc target specs --- .../rustc_codegen_ssa/src/back/metadata.rs | 10 +--- .../rustc_codegen_ssa/src/mir/naked_asm.rs | 40 ++++---------- compiler/rustc_target/src/spec/base/aix.rs | 5 +- .../rustc_target/src/spec/base/apple/mod.rs | 5 +- compiler/rustc_target/src/spec/base/cygwin.rs | 5 +- compiler/rustc_target/src/spec/base/msvc.rs | 3 +- compiler/rustc_target/src/spec/base/wasm.rs | 5 +- .../rustc_target/src/spec/base/windows_gnu.rs | 5 +- .../src/spec/base/windows_gnullvm.rs | 5 +- compiler/rustc_target/src/spec/json.rs | 15 ++++++ compiler/rustc_target/src/spec/mod.rs | 52 +++++++++++++++++++ 11 files changed, 102 insertions(+), 48 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/back/metadata.rs b/compiler/rustc_codegen_ssa/src/back/metadata.rs index d70413b8a474..236507ac0cd2 100644 --- a/compiler/rustc_codegen_ssa/src/back/metadata.rs +++ b/compiler/rustc_codegen_ssa/src/back/metadata.rs @@ -252,15 +252,7 @@ pub(crate) fn create_object_file(sess: &Session) -> Option return None, }; - let binary_format = if sess.target.is_like_osx { - BinaryFormat::MachO - } else if sess.target.is_like_windows { - BinaryFormat::Coff - } else if sess.target.is_like_aix { - BinaryFormat::Xcoff - } else { - BinaryFormat::Elf - }; + let binary_format = sess.target.binary_format.to_object(); let mut file = write::Object::new(binary_format, architecture, endianness); file.set_sub_architecture(sub_architecture); diff --git a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs index eb0711dbb32f..0593fb420c30 100644 --- a/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs +++ b/compiler/rustc_codegen_ssa/src/mir/naked_asm.rs @@ -8,7 +8,7 @@ use rustc_middle::ty::{Instance, Ty, TyCtxt}; use rustc_middle::{bug, span_bug, ty}; use rustc_span::sym; use rustc_target::callconv::{ArgAbi, FnAbi, PassMode}; -use rustc_target::spec::WasmCAbi; +use rustc_target::spec::{BinaryFormat, WasmCAbi}; use crate::common; use crate::traits::{AsmCodegenMethods, BuilderMethods, GlobalAsmOperandRef, MiscCodegenMethods}; @@ -104,27 +104,6 @@ fn inline_to_global_operand<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( } } -enum AsmBinaryFormat { - Elf, - Macho, - Coff, - Wasm, -} - -impl AsmBinaryFormat { - fn from_target(target: &rustc_target::spec::Target) -> Self { - if target.is_like_windows { - Self::Coff - } else if target.is_like_osx { - Self::Macho - } else if target.is_like_wasm { - Self::Wasm - } else { - Self::Elf - } - } -} - fn prefix_and_suffix<'tcx>( tcx: TyCtxt<'tcx>, instance: Instance<'tcx>, @@ -134,7 +113,7 @@ fn prefix_and_suffix<'tcx>( ) -> (String, String) { use std::fmt::Write; - let asm_binary_format = AsmBinaryFormat::from_target(&tcx.sess.target); + let asm_binary_format = &tcx.sess.target.binary_format; let is_arm = tcx.sess.target.arch == "arm"; let is_thumb = tcx.sess.unstable_target_features.contains(&sym::thumb_mode); @@ -178,10 +157,13 @@ fn prefix_and_suffix<'tcx>( } Linkage::LinkOnceAny | Linkage::LinkOnceODR | Linkage::WeakAny | Linkage::WeakODR => { match asm_binary_format { - AsmBinaryFormat::Elf | AsmBinaryFormat::Coff | AsmBinaryFormat::Wasm => { + BinaryFormat::Elf + | BinaryFormat::Coff + | BinaryFormat::Wasm + | BinaryFormat::Xcoff => { writeln!(w, ".weak {asm_name}")?; } - AsmBinaryFormat::Macho => { + BinaryFormat::MachO => { writeln!(w, ".globl {asm_name}")?; writeln!(w, ".weak_definition {asm_name}")?; } @@ -207,7 +189,7 @@ fn prefix_and_suffix<'tcx>( let mut begin = String::new(); let mut end = String::new(); match asm_binary_format { - AsmBinaryFormat::Elf => { + BinaryFormat::Elf | BinaryFormat::Xcoff => { let section = link_section.unwrap_or(format!(".text.{asm_name}")); let progbits = match is_arm { @@ -239,7 +221,7 @@ fn prefix_and_suffix<'tcx>( writeln!(end, "{}", arch_suffix).unwrap(); } } - AsmBinaryFormat::Macho => { + BinaryFormat::MachO => { let section = link_section.unwrap_or("__TEXT,__text".to_string()); writeln!(begin, ".pushsection {},regular,pure_instructions", section).unwrap(); writeln!(begin, ".balign {align}").unwrap(); @@ -255,7 +237,7 @@ fn prefix_and_suffix<'tcx>( writeln!(end, "{}", arch_suffix).unwrap(); } } - AsmBinaryFormat::Coff => { + BinaryFormat::Coff => { let section = link_section.unwrap_or(format!(".text.{asm_name}")); writeln!(begin, ".pushsection {},\"xr\"", section).unwrap(); writeln!(begin, ".balign {align}").unwrap(); @@ -272,7 +254,7 @@ fn prefix_and_suffix<'tcx>( writeln!(end, "{}", arch_suffix).unwrap(); } } - AsmBinaryFormat::Wasm => { + BinaryFormat::Wasm => { let section = link_section.unwrap_or(format!(".text.{asm_name}")); writeln!(begin, ".section {section},\"\",@").unwrap(); diff --git a/compiler/rustc_target/src/spec/base/aix.rs b/compiler/rustc_target/src/spec/base/aix.rs index a92d104f9108..aa42b4d1c502 100644 --- a/compiler/rustc_target/src/spec/base/aix.rs +++ b/compiler/rustc_target/src/spec/base/aix.rs @@ -1,6 +1,8 @@ use rustc_abi::Endian; -use crate::spec::{Cc, CodeModel, LinkOutputKind, LinkerFlavor, TargetOptions, crt_objects, cvs}; +use crate::spec::{ + BinaryFormat, Cc, CodeModel, LinkOutputKind, LinkerFlavor, TargetOptions, crt_objects, cvs, +}; pub(crate) fn opts() -> TargetOptions { TargetOptions { @@ -21,6 +23,7 @@ pub(crate) fn opts() -> TargetOptions { linker: Some("ld".into()), eh_frame_header: false, is_like_aix: true, + binary_format: BinaryFormat::Xcoff, default_dwarf_version: 3, function_sections: true, pre_link_objects: crt_objects::new(&[ diff --git a/compiler/rustc_target/src/spec/base/apple/mod.rs b/compiler/rustc_target/src/spec/base/apple/mod.rs index 1b56143545f6..66c85146c294 100644 --- a/compiler/rustc_target/src/spec/base/apple/mod.rs +++ b/compiler/rustc_target/src/spec/base/apple/mod.rs @@ -2,8 +2,8 @@ use std::borrow::Cow; use std::env; use crate::spec::{ - Cc, DebuginfoKind, FloatAbi, FramePointer, LinkerFlavor, Lld, RustcAbi, SplitDebuginfo, - StackProbeType, StaticCow, TargetOptions, cvs, + BinaryFormat, Cc, DebuginfoKind, FloatAbi, FramePointer, LinkerFlavor, Lld, RustcAbi, + SplitDebuginfo, StackProbeType, StaticCow, TargetOptions, cvs, }; #[cfg(test)] @@ -116,6 +116,7 @@ pub(crate) fn base( dynamic_linking: true, families: cvs!["unix"], is_like_osx: true, + binary_format: BinaryFormat::MachO, // LLVM notes that macOS 10.11+ and iOS 9+ default // to v4, so we do the same. // https://github.com/llvm/llvm-project/blob/378778a0d10c2f8d5df8ceff81f95b6002984a4b/clang/lib/Driver/ToolChains/Darwin.cpp#L1203 diff --git a/compiler/rustc_target/src/spec/base/cygwin.rs b/compiler/rustc_target/src/spec/base/cygwin.rs index fe3efb3f46ba..819d1d68a71d 100644 --- a/compiler/rustc_target/src/spec/base/cygwin.rs +++ b/compiler/rustc_target/src/spec/base/cygwin.rs @@ -1,6 +1,8 @@ use std::borrow::Cow; -use crate::spec::{Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs}; +use crate::spec::{ + BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs, +}; pub(crate) fn opts() -> TargetOptions { let mut pre_link_args = TargetOptions::link_args( @@ -32,6 +34,7 @@ pub(crate) fn opts() -> TargetOptions { exe_suffix: ".exe".into(), families: cvs!["unix"], is_like_windows: true, + binary_format: BinaryFormat::Coff, allows_weak_linkage: false, pre_link_args, late_link_args, diff --git a/compiler/rustc_target/src/spec/base/msvc.rs b/compiler/rustc_target/src/spec/base/msvc.rs index b0fb2ef4b27f..486d7158723f 100644 --- a/compiler/rustc_target/src/spec/base/msvc.rs +++ b/compiler/rustc_target/src/spec/base/msvc.rs @@ -1,6 +1,6 @@ use std::borrow::Cow; -use crate::spec::{DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions}; +use crate::spec::{BinaryFormat, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions}; pub(crate) fn opts() -> TargetOptions { // Suppress the verbose logo and authorship debugging output, which would needlessly @@ -12,6 +12,7 @@ pub(crate) fn opts() -> TargetOptions { dll_tls_export: false, is_like_windows: true, is_like_msvc: true, + binary_format: BinaryFormat::Coff, pre_link_args, abi_return_struct_as_int: true, emit_debug_gdb_scripts: false, diff --git a/compiler/rustc_target/src/spec/base/wasm.rs b/compiler/rustc_target/src/spec/base/wasm.rs index 81b96cd39ffa..88e7af5e6697 100644 --- a/compiler/rustc_target/src/spec/base/wasm.rs +++ b/compiler/rustc_target/src/spec/base/wasm.rs @@ -1,6 +1,6 @@ use crate::spec::{ - Cc, LinkSelfContainedDefault, LinkerFlavor, PanicStrategy, RelocModel, TargetOptions, TlsModel, - add_link_args, cvs, + BinaryFormat, Cc, LinkSelfContainedDefault, LinkerFlavor, PanicStrategy, RelocModel, + TargetOptions, TlsModel, add_link_args, cvs, }; pub(crate) fn options() -> TargetOptions { @@ -53,6 +53,7 @@ pub(crate) fn options() -> TargetOptions { TargetOptions { is_like_wasm: true, + binary_format: BinaryFormat::Wasm, families: cvs!["wasm"], // we allow dynamic linking, but only cdylibs. Basically we allow a diff --git a/compiler/rustc_target/src/spec/base/windows_gnu.rs b/compiler/rustc_target/src/spec/base/windows_gnu.rs index 024b10f2faad..4ba110219884 100644 --- a/compiler/rustc_target/src/spec/base/windows_gnu.rs +++ b/compiler/rustc_target/src/spec/base/windows_gnu.rs @@ -1,8 +1,8 @@ use std::borrow::Cow; use crate::spec::{ - Cc, DebuginfoKind, LinkSelfContainedDefault, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, - add_link_args, crt_objects, cvs, + BinaryFormat, Cc, DebuginfoKind, LinkSelfContainedDefault, LinkerFlavor, Lld, SplitDebuginfo, + TargetOptions, add_link_args, crt_objects, cvs, }; pub(crate) fn opts() -> TargetOptions { @@ -90,6 +90,7 @@ pub(crate) fn opts() -> TargetOptions { exe_suffix: ".exe".into(), families: cvs!["windows"], is_like_windows: true, + binary_format: BinaryFormat::Coff, allows_weak_linkage: false, pre_link_args, pre_link_objects: crt_objects::pre_mingw(), diff --git a/compiler/rustc_target/src/spec/base/windows_gnullvm.rs b/compiler/rustc_target/src/spec/base/windows_gnullvm.rs index 4a6e7c75200f..f24ad781e2b8 100644 --- a/compiler/rustc_target/src/spec/base/windows_gnullvm.rs +++ b/compiler/rustc_target/src/spec/base/windows_gnullvm.rs @@ -1,6 +1,8 @@ use std::borrow::Cow; -use crate::spec::{Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs}; +use crate::spec::{ + BinaryFormat, Cc, DebuginfoKind, LinkerFlavor, Lld, SplitDebuginfo, TargetOptions, cvs, +}; pub(crate) fn opts() -> TargetOptions { // We cannot use `-nodefaultlibs` because compiler-rt has to be passed @@ -30,6 +32,7 @@ pub(crate) fn opts() -> TargetOptions { exe_suffix: ".exe".into(), families: cvs!["windows"], is_like_windows: true, + binary_format: BinaryFormat::Coff, allows_weak_linkage: false, pre_link_args, late_link_args, diff --git a/compiler/rustc_target/src/spec/json.rs b/compiler/rustc_target/src/spec/json.rs index f703132e51f0..134405f3630e 100644 --- a/compiler/rustc_target/src/spec/json.rs +++ b/compiler/rustc_target/src/spec/json.rs @@ -103,6 +103,19 @@ impl Target { base.$key_name = Some(s); } } ); + ($key_name:ident, BinaryFormat) => ( { + let name = (stringify!($key_name)).replace("_", "-"); + obj.remove(&name).and_then(|f| f.as_str().and_then(|s| { + match s.parse::() { + Ok(binary_format) => base.$key_name = binary_format, + _ => return Some(Err(format!( + "'{s}' is not a valid value for binary_format. \ + Use 'coff', 'elf', 'mach-o', 'wasm' or 'xcoff' " + ))), + } + Some(Ok(())) + })).unwrap_or(Ok(())) + } ); ($key_name:ident, MergeFunctions) => ( { let name = (stringify!($key_name)).replace("_", "-"); obj.remove(&name).and_then(|o| o.as_str().and_then(|s| { @@ -585,6 +598,7 @@ impl Target { key!(is_like_msvc, bool); key!(is_like_wasm, bool); key!(is_like_android, bool); + key!(binary_format, BinaryFormat)?; key!(default_dwarf_version, u32); key!(allows_weak_linkage, bool); key!(has_rpath, bool); @@ -762,6 +776,7 @@ impl ToJson for Target { target_option_val!(is_like_msvc); target_option_val!(is_like_wasm); target_option_val!(is_like_android); + target_option_val!(binary_format); target_option_val!(default_dwarf_version); target_option_val!(allows_weak_linkage); target_option_val!(has_rpath); diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 794d6457cb78..f40af2dce266 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1640,6 +1640,55 @@ impl fmt::Display for StackProtector { } } +#[derive(PartialEq, Clone, Debug)] +pub enum BinaryFormat { + Coff, + Elf, + MachO, + Wasm, + Xcoff, +} + +impl BinaryFormat { + /// Returns [`object::BinaryFormat`] for given `BinaryFormat` + pub fn to_object(&self) -> object::BinaryFormat { + match self { + Self::Coff => object::BinaryFormat::Coff, + Self::Elf => object::BinaryFormat::Elf, + Self::MachO => object::BinaryFormat::MachO, + Self::Wasm => object::BinaryFormat::Wasm, + Self::Xcoff => object::BinaryFormat::Xcoff, + } + } +} + +impl FromStr for BinaryFormat { + type Err = (); + fn from_str(s: &str) -> Result { + match s { + "coff" => Ok(Self::Coff), + "elf" => Ok(Self::Elf), + "mach-o" => Ok(Self::MachO), + "wasm" => Ok(Self::Wasm), + "xcoff" => Ok(Self::Xcoff), + _ => Err(()), + } + } +} + +impl ToJson for BinaryFormat { + fn to_json(&self) -> Json { + match self { + Self::Coff => "coff", + Self::Elf => "elf", + Self::MachO => "mach-o", + Self::Wasm => "wasm", + Self::Xcoff => "xcoff", + } + .to_json() + } +} + macro_rules! supported_targets { ( $(($tuple:literal, $module:ident),)+ ) => { mod targets { @@ -2369,6 +2418,8 @@ pub struct TargetOptions { pub is_like_wasm: bool, /// Whether a target toolchain is like Android, implying a Linux kernel and a Bionic libc pub is_like_android: bool, + /// Target's binary file format. Defaults to BinaryFormat::Elf + pub binary_format: BinaryFormat, /// Default supported version of DWARF on this platform. /// Useful because some platforms (osx, bsd) only want up to DWARF2. pub default_dwarf_version: u32, @@ -2744,6 +2795,7 @@ impl Default for TargetOptions { is_like_msvc: false, is_like_wasm: false, is_like_android: false, + binary_format: BinaryFormat::Elf, default_dwarf_version: 4, allows_weak_linkage: true, has_rpath: false, From 28d589cb3896c4076faae0d67a54c6e04bf4c1f9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Mon, 17 Feb 2025 20:58:24 +0100 Subject: [PATCH 061/255] Update host LLVM to 20.1 on CI --- src/ci/docker/scripts/build-clang.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ci/docker/scripts/build-clang.sh b/src/ci/docker/scripts/build-clang.sh index 841a0adb2ab8..536991cc06b7 100755 --- a/src/ci/docker/scripts/build-clang.sh +++ b/src/ci/docker/scripts/build-clang.sh @@ -5,7 +5,7 @@ set -ex source shared.sh # Try to keep the LLVM version here in sync with src/ci/scripts/install-clang.sh -LLVM=llvmorg-19.1.0-rc3 +LLVM=llvmorg-20.1.0-rc2 mkdir llvm-project cd llvm-project From 40ecda6a33bdfb4ca66ecb5555473511a9b1b9f6 Mon Sep 17 00:00:00 2001 From: Kornel Date: Mon, 17 Feb 2025 21:17:05 +0000 Subject: [PATCH 062/255] Remove obsolete MinGW ThinLTO+TLS workaround #109797 is fixed --- library/std/src/sys/thread_local/os.rs | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/library/std/src/sys/thread_local/os.rs b/library/std/src/sys/thread_local/os.rs index 00d2e30bd603..fe6af27db3a1 100644 --- a/library/std/src/sys/thread_local/os.rs +++ b/library/std/src/sys/thread_local/os.rs @@ -28,9 +28,7 @@ pub macro thread_local_inner { // user provided type or type alias with a matching name. Please update the shadowing test // in `tests/thread.rs` if these types are renamed. unsafe { - // Inlining does not work on windows-gnu due to linking errors around - // dllimports. See https://github.com/rust-lang/rust/issues/109797. - $crate::thread::LocalKey::new(#[cfg_attr(windows, inline(never))] |init| { + $crate::thread::LocalKey::new(|init| { static VAL: $crate::thread::local_impl::Storage<$t> = $crate::thread::local_impl::Storage::new(); VAL.get(init, __init) From 4e4cb10b846c71f2993d2e4babbc026ff68bab3b Mon Sep 17 00:00:00 2001 From: Peter Todd Date: Tue, 18 Feb 2025 04:56:03 +0000 Subject: [PATCH 063/255] Add #[track_caller] to Duration Div impl Previously the location of the divide-by-zero error condition would be attributed to the code in the rust standard library, eg: thread 'main' panicked at /home/user/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/time.rs:1172:31: divide by zero error when dividing duration by scalar With #[track_caller] the error is correctly attributed to the callee. --- library/core/src/time.rs | 2 ++ 1 file changed, 2 insertions(+) diff --git a/library/core/src/time.rs b/library/core/src/time.rs index 22bd46c567ea..8b211b442eab 100644 --- a/library/core/src/time.rs +++ b/library/core/src/time.rs @@ -1168,6 +1168,7 @@ impl Div for Duration { type Output = Duration; #[inline] + #[track_caller] fn div(self, rhs: u32) -> Duration { self.checked_div(rhs).expect("divide by zero error when dividing duration by scalar") } @@ -1176,6 +1177,7 @@ impl Div for Duration { #[stable(feature = "time_augmented_assignment", since = "1.9.0")] impl DivAssign for Duration { #[inline] + #[track_caller] fn div_assign(&mut self, rhs: u32) { *self = *self / rhs; } From 410331c74c3dbb360633ca6127caaf5edca7d89e Mon Sep 17 00:00:00 2001 From: "Chai T. Rex" Date: Mon, 17 Feb 2025 23:48:39 -0500 Subject: [PATCH 064/255] Add Zed to dev guide suggested workflows page --- src/doc/rustc-dev-guide/src/building/suggested.md | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/doc/rustc-dev-guide/src/building/suggested.md b/src/doc/rustc-dev-guide/src/building/suggested.md index 2c6c3fe1df84..5c041d6cb70f 100644 --- a/src/doc/rustc-dev-guide/src/building/suggested.md +++ b/src/doc/rustc-dev-guide/src/building/suggested.md @@ -154,6 +154,16 @@ You can run `./x setup editor` and select `helix`, which will prompt you to create `languages.toml` with the recommended configuration for Helix. The recommended settings live at [`src/etc/rust_analyzer_helix.toml`]. +### Zed + +Zed comes with built-in LSP and rust-analyzer support. +It can be configured through `.zed/settings.json`, as described +[here](https://zed.dev/docs/configuring-languages). Selecting `zed` +in `./x setup editor` will prompt you to create a `.zed/settings.json` +file which will configure Zed with the recommended configuration. The +recommended `rust-analyzer` settings live +at [`src/etc/rust_analyzer_zed.json`]. + ## Check, check, and check again When doing simple refactoring, it can be useful to run `./x check` @@ -381,4 +391,5 @@ load this completion. [`src/etc/rust_analyzer_settings.json`]: https://github.com/rust-lang/rust/blob/master/src/etc/rust_analyzer_settings.json [`src/etc/rust_analyzer_eglot.el`]: https://github.com/rust-lang/rust/blob/master/src/etc/rust_analyzer_eglot.el [`src/etc/rust_analyzer_helix.toml`]: https://github.com/rust-lang/rust/blob/master/src/etc/rust_analyzer_helix.toml +[`src/etc/rust_analyzer_zed.json`]: https://github.com/rust-lang/rust/blob/master/src/etc/rust_analyzer_zed.json [`src/etc/pre-push.sh`]: https://github.com/rust-lang/rust/blob/master/src/etc/pre-push.sh From f012427aa6abeb4013971108211d1bd6819b46f3 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 12:56:39 +0300 Subject: [PATCH 065/255] handle `ToolRustc` build stages automatically Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/tool.rs | 23 +++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 75bfff340862..b8ce92ac8af1 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -76,11 +76,16 @@ impl Step for ToolBuild { /// This will build the specified tool with the specified `host` compiler in /// `stage` into the normal cargo output directory. fn run(self, builder: &Builder<'_>) -> PathBuf { - let compiler = self.compiler; let target = self.target; let mut tool = self.tool; let path = self.path; + let compiler = if self.mode == Mode::ToolRustc { + get_tool_rustc_compiler(builder, self.compiler) + } else { + self.compiler + }; + match self.mode { Mode::ToolRustc => { builder.ensure(compile::Std::new(compiler, compiler.host)); @@ -147,6 +152,9 @@ pub fn prepare_tool_cargo( source_type: SourceType, extra_features: &[String], ) -> CargoCommand { + let compiler = + if mode == Mode::ToolRustc { get_tool_rustc_compiler(builder, compiler) } else { compiler }; + let mut cargo = builder::Cargo::new(builder, compiler, mode, source_type, target, cmd_kind); let dir = builder.src.join(path); @@ -240,6 +248,19 @@ pub fn prepare_tool_cargo( cargo } +fn get_tool_rustc_compiler(builder: &Builder<'_>, target_compiler: Compiler) -> Compiler { + if builder.download_rustc() && target_compiler.stage == 1 { + // We already have the stage 1 compiler, we don't need to cut the stage. + builder.compiler(target_compiler.stage, builder.config.build) + } else { + // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise + // we'd have stageN/bin/rustc and stageN/bin/$rustc_tool be effectively different stage + // compilers, which isn't what we want. Rustc tools should be linked in the same way as the + // compiler it's paired with, so it must be built with the previous stage compiler. + builder.compiler(target_compiler.stage.saturating_sub(1), builder.config.build) + } +} + /// Links a built tool binary with the given `name` from the build directory to the /// tools directory. fn copy_link_tool_bin( From 164f2408a215a33f3b9d638dde2944a4dbeae6ea Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 12:59:20 +0300 Subject: [PATCH 066/255] pass target_compiler from Rustdoc Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/tool.rs | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index b8ce92ac8af1..05c9ab29e057 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -650,16 +650,7 @@ impl Step for Rustdoc { } } - let build_compiler = if builder.download_rustc() && target_compiler.stage == 1 { - // We already have the stage 1 compiler, we don't need to cut the stage. - builder.compiler(target_compiler.stage, builder.config.build) - } else { - // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise - // we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage - // compilers, which isn't what we want. Rustdoc should be linked in the same way as the - // rustc compiler it's paired with, so it must be built with the previous stage compiler. - builder.compiler(target_compiler.stage - 1, builder.config.build) - }; + let build_compiler = get_tool_rustc_compiler(builder, target_compiler); // When using `download-rustc` and a stage0 build_compiler, copying rustc doesn't actually // build stage0 libstd (because the libstd in sysroot has the wrong ABI). Explicitly build @@ -682,7 +673,7 @@ impl Step for Rustdoc { // NOTE: Never modify the rustflags here, it breaks the build cache for other tools! let mut cargo = prepare_tool_cargo( builder, - build_compiler, + target_compiler, Mode::ToolRustc, target, Kind::Build, From 7638abb5807cb77548092420af25c012a399568e Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 13:05:36 +0300 Subject: [PATCH 067/255] bless tests Signed-off-by: onur-ozkan --- src/bootstrap/src/core/builder/tests.rs | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index 445b5dfbeab2..433e02299c14 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -525,6 +525,7 @@ mod dist { first(cache.all::()), &[ rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_1, stage = 0), + rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_2, stage = 0), rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_2, stage = 1), ] ); @@ -796,7 +797,10 @@ mod dist { // stage minus 1 if --stage is not 0. Very confusing! assert_eq!( first(builder.cache.all::()), - &[tool::Rustdoc { compiler: Compiler { host: a, stage: 2 } },] + &[ + tool::Rustdoc { compiler: Compiler { host: a, stage: 1 } }, + tool::Rustdoc { compiler: Compiler { host: a, stage: 2 } }, + ] ); } From 72e67e87da600492930c5289cfb018441ca8c732 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 13:34:33 +0300 Subject: [PATCH 068/255] return more advanced type from `ToolBuild` Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/tool.rs | 223 ++++++++++++--------- 1 file changed, 125 insertions(+), 98 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 05c9ab29e057..8175c9213b97 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -64,8 +64,15 @@ impl Builder<'_> { } } +#[derive(Clone)] +struct ToolBuildResult { + tool_path: PathBuf, + build_compiler: Compiler, + target_compiler: Compiler, +} + impl Step for ToolBuild { - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.never() @@ -75,12 +82,13 @@ impl Step for ToolBuild { /// /// This will build the specified tool with the specified `host` compiler in /// `stage` into the normal cargo output directory. - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(mut self, builder: &Builder<'_>) -> ToolBuildResult { let target = self.target; let mut tool = self.tool; let path = self.path; - let compiler = if self.mode == Mode::ToolRustc { + let target_compiler = self.compiler; + self.compiler = if self.mode == Mode::ToolRustc { get_tool_rustc_compiler(builder, self.compiler) } else { self.compiler @@ -88,17 +96,17 @@ impl Step for ToolBuild { match self.mode { Mode::ToolRustc => { - builder.ensure(compile::Std::new(compiler, compiler.host)); - builder.ensure(compile::Rustc::new(compiler, target)); + builder.ensure(compile::Std::new(self.compiler, self.compiler.host)); + builder.ensure(compile::Rustc::new(self.compiler, target)); } - Mode::ToolStd => builder.ensure(compile::Std::new(compiler, target)), + Mode::ToolStd => builder.ensure(compile::Std::new(self.compiler, target)), Mode::ToolBootstrap => {} // uses downloaded stage0 compiler libs _ => panic!("unexpected Mode for tool build"), } let mut cargo = prepare_tool_cargo( builder, - compiler, + self.compiler, self.mode, target, Kind::Build, @@ -136,7 +144,10 @@ impl Step for ToolBuild { if tool == "tidy" { tool = "rust-tidy"; } - copy_link_tool_bin(builder, self.compiler, self.target, self.mode, tool) + let tool_path = + copy_link_tool_bin(builder, target_compiler, self.target, self.mode, tool); + + ToolBuildResult { tool_path, build_compiler: self.compiler, target_compiler } } } } @@ -361,7 +372,7 @@ macro_rules! bootstrap_tool { extra_features: vec![], allow_features: concat!($($allow_features)*), cargo_args: vec![] - }) + }).tool_path } } )+ @@ -429,17 +440,19 @@ impl Step for OptimizedDist { // the tool requires it to be in place to run. builder.require_submodule("src/tools/rustc-perf", None); - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "opt-dist", - mode: Mode::ToolBootstrap, - path: "src/tools/opt-dist", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) + builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "opt-dist", + mode: Mode::ToolBootstrap, + path: "src/tools/opt-dist", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) + .tool_path } } @@ -483,7 +496,7 @@ impl Step for RustcPerf { // a CLI. cargo_args: vec!["-p".to_string(), "collector".to_string()], }; - let collector_bin = builder.ensure(tool.clone()); + let collector_bin = builder.ensure(tool.clone()).tool_path; // We also need to symlink the `rustc-fake` binary to the corresponding directory, // because `collector` expects it in the same directory. copy_link_tool_bin(builder, tool.compiler, tool.target, tool.mode, "rustc-fake"); @@ -533,17 +546,19 @@ impl Step for ErrorIndex { } fn run(self, builder: &Builder<'_>) -> PathBuf { - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.compiler.host, - tool: "error_index_generator", - mode: Mode::ToolRustc, - path: "src/tools/error_index_generator", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) + builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.compiler.host, + tool: "error_index_generator", + mode: Mode::ToolRustc, + path: "src/tools/error_index_generator", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) + .tool_path } } @@ -568,17 +583,19 @@ impl Step for RemoteTestServer { } fn run(self, builder: &Builder<'_>) -> PathBuf { - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "remote-test-server", - mode: Mode::ToolStd, - path: "src/tools/remote-test-server", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) + builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "remote-test-server", + mode: Mode::ToolStd, + path: "src/tools/remote-test-server", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) + .tool_path } } @@ -754,17 +771,19 @@ impl Step for Cargo { fn run(self, builder: &Builder<'_>) -> PathBuf { builder.build.require_submodule("src/tools/cargo", None); - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "cargo", - mode: Mode::ToolRustc, - path: "src/tools/cargo", - source_type: SourceType::Submodule, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) + builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "cargo", + mode: Mode::ToolRustc, + path: "src/tools/cargo", + source_type: SourceType::Submodule, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) + .tool_path } } @@ -797,17 +816,19 @@ impl Step for LldWrapper { let target = self.target_compiler.host; - let executable = builder.ensure(ToolBuild { - compiler: self.build_compiler, - target, - tool: "lld-wrapper", - mode: Mode::ToolStd, - path: "src/tools/lld-wrapper", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }); + let executable = builder + .ensure(ToolBuild { + compiler: self.build_compiler, + target, + tool: "lld-wrapper", + mode: Mode::ToolStd, + path: "src/tools/lld-wrapper", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) + .tool_path; let libdir_bin = builder.sysroot_target_bindir(self.target_compiler, target); t!(fs::create_dir_all(&libdir_bin)); @@ -854,17 +875,19 @@ impl Step for RustAnalyzer { } fn run(self, builder: &Builder<'_>) -> PathBuf { - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "rust-analyzer", - mode: Mode::ToolRustc, - path: "src/tools/rust-analyzer", - extra_features: vec!["in-rust-tree".to_owned()], - source_type: SourceType::InTree, - allow_features: RustAnalyzer::ALLOW_FEATURES, - cargo_args: Vec::new(), - }) + builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "rust-analyzer", + mode: Mode::ToolRustc, + path: "src/tools/rust-analyzer", + extra_features: vec!["in-rust-tree".to_owned()], + source_type: SourceType::InTree, + allow_features: RustAnalyzer::ALLOW_FEATURES, + cargo_args: Vec::new(), + }) + .tool_path } } @@ -898,17 +921,19 @@ impl Step for RustAnalyzerProcMacroSrv { } fn run(self, builder: &Builder<'_>) -> Option { - let path = builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "rust-analyzer-proc-macro-srv", - mode: Mode::ToolRustc, - path: "src/tools/rust-analyzer/crates/proc-macro-srv-cli", - extra_features: vec!["in-rust-tree".to_owned()], - source_type: SourceType::InTree, - allow_features: RustAnalyzer::ALLOW_FEATURES, - cargo_args: Vec::new(), - }); + let path = builder + .ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "rust-analyzer-proc-macro-srv", + mode: Mode::ToolRustc, + path: "src/tools/rust-analyzer/crates/proc-macro-srv-cli", + extra_features: vec!["in-rust-tree".to_owned()], + source_type: SourceType::InTree, + allow_features: RustAnalyzer::ALLOW_FEATURES, + cargo_args: Vec::new(), + }) + .tool_path; // Copy `rust-analyzer-proc-macro-srv` to `/libexec/` // so that r-a can use it. @@ -1146,17 +1171,19 @@ fn run_tool_build_step( path: &'static str, add_bins_to_sysroot: Option<&[&str]>, ) -> PathBuf { - let tool = builder.ensure(ToolBuild { - compiler, - target, - tool: tool_name, - mode: Mode::ToolRustc, - path, - extra_features: vec![], - source_type: SourceType::InTree, - allow_features: "", - cargo_args: vec![], - }); + let tool = builder + .ensure(ToolBuild { + compiler, + target, + tool: tool_name, + mode: Mode::ToolRustc, + path, + extra_features: vec![], + source_type: SourceType::InTree, + allow_features: "", + cargo_args: vec![], + }) + .tool_path; // FIXME: This should just be an if-let-chain, but those are unstable. if let Some(add_bins_to_sysroot) = From 8e011e5e672440e9fb45476385d6e9866b72ee12 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 14:01:22 +0300 Subject: [PATCH 069/255] migrate llvm-bitcode-linker to `ToolBuild` Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/tool.rs | 78 ++++++++-------------- 1 file changed, 27 insertions(+), 51 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 8175c9213b97..8bcb5770e39f 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -145,7 +145,7 @@ impl Step for ToolBuild { tool = "rust-tidy"; } let tool_path = - copy_link_tool_bin(builder, target_compiler, self.target, self.mode, tool); + copy_link_tool_bin(builder, self.compiler, self.target, self.mode, tool); ToolBuildResult { tool_path, build_compiler: self.compiler, target_compiler } } @@ -976,50 +976,30 @@ impl Step for LlvmBitcodeLinker { instrument(level = "debug", name = "LlvmBitcodeLinker::run", skip_all) )] fn run(self, builder: &Builder<'_>) -> PathBuf { - let bin_name = "llvm-bitcode-linker"; + let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "llvm-bitcode-linker", + mode: Mode::ToolRustc, + path: "src/tools/llvm-bitcode-linker", + source_type: SourceType::InTree, + extra_features: self.extra_features, + allow_features: "", + cargo_args: Vec::new(), + }); - // If enabled, use ci-rustc and skip building the in-tree compiler. - if !builder.download_rustc() { - builder.ensure(compile::Std::new(self.compiler, self.compiler.host)); - builder.ensure(compile::Rustc::new(self.compiler, self.target)); - } - - let cargo = prepare_tool_cargo( - builder, - self.compiler, - Mode::ToolRustc, - self.target, - Kind::Build, - "src/tools/llvm-bitcode-linker", - SourceType::InTree, - &self.extra_features, - ); - - let _guard = builder.msg_tool( - Kind::Build, - Mode::ToolRustc, - bin_name, - self.compiler.stage, - &self.compiler.host, - &self.target, - ); - - cargo.into_cmd().run(builder); - - let tool_out = builder - .cargo_out(self.compiler, Mode::ToolRustc, self.target) - .join(exe(bin_name, self.compiler.host)); - - if self.compiler.stage > 0 { + if target_compiler.stage > 0 { let bindir_self_contained = builder - .sysroot(self.compiler) + .sysroot(target_compiler) .join(format!("lib/rustlib/{}/bin/self-contained", self.target.triple)); t!(fs::create_dir_all(&bindir_self_contained)); - let bin_destination = bindir_self_contained.join(exe(bin_name, self.compiler.host)); - builder.copy_link(&tool_out, &bin_destination); + let bin_destination = + bindir_self_contained.join(exe("llvm-bitcode-linker", target_compiler.host)); + builder.copy_link(&tool_path, &bin_destination); bin_destination } else { - tool_out + tool_path } } } @@ -1171,7 +1151,7 @@ fn run_tool_build_step( path: &'static str, add_bins_to_sysroot: Option<&[&str]>, ) -> PathBuf { - let tool = builder + let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = builder .ensure(ToolBuild { compiler, target, @@ -1182,28 +1162,24 @@ fn run_tool_build_step( source_type: SourceType::InTree, allow_features: "", cargo_args: vec![], - }) - .tool_path; + }); // FIXME: This should just be an if-let-chain, but those are unstable. if let Some(add_bins_to_sysroot) = - add_bins_to_sysroot.filter(|bins| !bins.is_empty() && compiler.stage > 0) + add_bins_to_sysroot.filter(|bins| !bins.is_empty() && target_compiler.stage > 0) { - let bindir = builder.sysroot(compiler).join("bin"); + let bindir = builder.sysroot(target_compiler).join("bin"); t!(fs::create_dir_all(&bindir)); - let tools_out = builder.cargo_out(compiler, Mode::ToolRustc, target); - for add_bin in add_bins_to_sysroot { - let bin_source = tools_out.join(exe(add_bin, target)); - let bin_destination = bindir.join(exe(add_bin, compiler.host)); - builder.copy_link(&bin_source, &bin_destination); + let bin_destination = bindir.join(exe(add_bin, target_compiler.host)); + builder.copy_link(&tool_path, &bin_destination); } // Return a path into the bin dir. - bindir.join(exe(tool_name, compiler.host)) + bindir.join(exe(tool_name, target_compiler.host)) } else { - tool + tool_path } } From a33843968ceae214b2a2c8699e0612bb582a3a4e Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 15:06:23 +0300 Subject: [PATCH 070/255] return `ToolBuildResult` to utilize them from callers Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/dist.rs | 14 +-- src/bootstrap/src/core/build_steps/test.rs | 8 +- src/bootstrap/src/core/build_steps/tool.rs | 118 +++++++++------------ src/bootstrap/src/core/builder/mod.rs | 6 +- src/bootstrap/src/core/builder/tests.rs | 5 +- 5 files changed, 66 insertions(+), 85 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 85b224771bb3..403aa48bad9b 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -1180,7 +1180,7 @@ impl Step for Rls { let mut tarball = Tarball::new(builder, "rls", &target.triple); tarball.set_overlay(OverlayKind::Rls); tarball.is_preview(true); - tarball.add_file(rls, "bin", 0o755); + tarball.add_file(rls.tool_path, "bin", 0o755); tarball.add_legal_and_readme_to("share/doc/rls"); Some(tarball.generate()) } @@ -1268,8 +1268,8 @@ impl Step for Clippy { let mut tarball = Tarball::new(builder, "clippy", &target.triple); tarball.set_overlay(OverlayKind::Clippy); tarball.is_preview(true); - tarball.add_file(clippy, "bin", 0o755); - tarball.add_file(cargoclippy, "bin", 0o755); + tarball.add_file(clippy.tool_path, "bin", 0o755); + tarball.add_file(cargoclippy.tool_path, "bin", 0o755); tarball.add_legal_and_readme_to("share/doc/clippy"); Some(tarball.generate()) } @@ -1318,8 +1318,8 @@ impl Step for Miri { let mut tarball = Tarball::new(builder, "miri", &target.triple); tarball.set_overlay(OverlayKind::Miri); tarball.is_preview(true); - tarball.add_file(miri, "bin", 0o755); - tarball.add_file(cargomiri, "bin", 0o755); + tarball.add_file(miri.tool_path, "bin", 0o755); + tarball.add_file(cargomiri.tool_path, "bin", 0o755); tarball.add_legal_and_readme_to("share/doc/miri"); Some(tarball.generate()) } @@ -1449,8 +1449,8 @@ impl Step for Rustfmt { let mut tarball = Tarball::new(builder, "rustfmt", &target.triple); tarball.set_overlay(OverlayKind::Rustfmt); tarball.is_preview(true); - tarball.add_file(rustfmt, "bin", 0o755); - tarball.add_file(cargofmt, "bin", 0o755); + tarball.add_file(rustfmt.tool_path, "bin", 0o755); + tarball.add_file(cargofmt.tool_path, "bin", 0o755); tarball.add_legal_and_readme_to("share/doc/rustfmt"); Some(tarball.generate()) } diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index b3f4a7bad99c..1820c13a861c 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -427,7 +427,8 @@ impl Step for Rustfmt { let host = self.host; let compiler = builder.compiler(stage, host); - builder.ensure(tool::Rustfmt { compiler, target: self.host }); + let tool_result = builder.ensure(tool::Rustfmt { compiler, target: self.host }); + let compiler = tool_result.build_compiler; let mut cargo = tool::prepare_tool_cargo( builder, @@ -571,7 +572,7 @@ impl Step for Miri { // miri tests need to know about the stage sysroot cargo.env("MIRI_SYSROOT", &miri_sysroot); cargo.env("MIRI_HOST_SYSROOT", &host_sysroot); - cargo.env("MIRI", &miri); + cargo.env("MIRI", &miri.tool_path); // Set the target. cargo.env("MIRI_TEST_TARGET", target.rustc_target_arg()); @@ -743,7 +744,8 @@ impl Step for Clippy { let host = self.host; let compiler = builder.compiler(stage, host); - builder.ensure(tool::Clippy { compiler, target: self.host }); + let tool_result = builder.ensure(tool::Clippy { compiler, target: self.host }); + let compiler = tool_result.build_compiler; let mut cargo = tool::prepare_tool_cargo( builder, compiler, diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 8bcb5770e39f..cbb973428e2c 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -65,10 +65,10 @@ impl Builder<'_> { } #[derive(Clone)] -struct ToolBuildResult { - tool_path: PathBuf, - build_compiler: Compiler, - target_compiler: Compiler, +pub struct ToolBuildResult { + pub tool_path: PathBuf, + pub build_compiler: Compiler, + pub target_compiler: Compiler, } impl Step for ToolBuild { @@ -114,10 +114,28 @@ impl Step for ToolBuild { self.source_type, &self.extra_features, ); + + if path.ends_with("/rustdoc") && + // rustdoc is performance sensitive, so apply LTO to it. + is_lto_stage(&self.compiler) + { + let lto = match builder.config.rust_lto { + RustcLto::Off => Some("off"), + RustcLto::Thin => Some("thin"), + RustcLto::Fat => Some("fat"), + RustcLto::ThinLocal => None, + }; + if let Some(lto) = lto { + cargo.env(cargo_profile_var("LTO", &builder.config), lto); + } + } + if !self.allow_features.is_empty() { cargo.allow_features(self.allow_features); } + cargo.args(self.cargo_args); + let _guard = builder.msg_tool( Kind::Build, self.mode, @@ -163,9 +181,6 @@ pub fn prepare_tool_cargo( source_type: SourceType, extra_features: &[String], ) -> CargoCommand { - let compiler = - if mode == Mode::ToolRustc { get_tool_rustc_compiler(builder, compiler) } else { compiler }; - let mut cargo = builder::Cargo::new(builder, compiler, mode, source_type, target, cmd_kind); let dir = builder.src.join(path); @@ -667,14 +682,6 @@ impl Step for Rustdoc { } } - let build_compiler = get_tool_rustc_compiler(builder, target_compiler); - - // When using `download-rustc` and a stage0 build_compiler, copying rustc doesn't actually - // build stage0 libstd (because the libstd in sysroot has the wrong ABI). Explicitly build - // it. - builder.ensure(compile::Std::new(build_compiler, target_compiler.host)); - builder.ensure(compile::Rustc::new(build_compiler, target_compiler.host)); - // The presence of `target_compiler` ensures that the necessary libraries (codegen backends, // compiler libraries, ...) are built. Rustdoc does not require the presence of any // libraries within sysroot_libdir (i.e., rustlib), though doctests may want it (since @@ -682,65 +689,39 @@ impl Step for Rustdoc { // libraries here. The intuition here is that If we've built a compiler, we should be able // to build rustdoc. // - let mut features = Vec::new(); + let mut extra_features = Vec::new(); if builder.config.jemalloc(target) { - features.push("jemalloc".to_string()); + extra_features.push("jemalloc".to_string()); } - // NOTE: Never modify the rustflags here, it breaks the build cache for other tools! - let mut cargo = prepare_tool_cargo( - builder, - target_compiler, - Mode::ToolRustc, - target, - Kind::Build, - "src/tools/rustdoc", - SourceType::InTree, - features.as_slice(), - ); - - // rustdoc is performance sensitive, so apply LTO to it. - if is_lto_stage(&build_compiler) { - let lto = match builder.config.rust_lto { - RustcLto::Off => Some("off"), - RustcLto::Thin => Some("thin"), - RustcLto::Fat => Some("fat"), - RustcLto::ThinLocal => None, - }; - if let Some(lto) = lto { - cargo.env(cargo_profile_var("LTO", &builder.config), lto); - } - } - - let _guard = builder.msg_tool( - Kind::Build, - Mode::ToolRustc, - "rustdoc", - build_compiler.stage, - &self.compiler.host, - &target, - ); - cargo.into_cmd().run(builder); - - // Cargo adds a number of paths to the dylib search path on windows, which results in - // the wrong rustdoc being executed. To avoid the conflicting rustdocs, we name the "tool" - // rustdoc a different name. - let tool_rustdoc = builder - .cargo_out(build_compiler, Mode::ToolRustc, target) - .join(exe("rustdoc_tool_binary", target_compiler.host)); + let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = + builder.ensure(ToolBuild { + compiler: target_compiler, + target, + // Cargo adds a number of paths to the dylib search path on windows, which results in + // the wrong rustdoc being executed. To avoid the conflicting rustdocs, we name the "tool" + // rustdoc a different name. + tool: "rustdoc_tool_binary", + mode: Mode::ToolRustc, + path: "src/tools/rustdoc", + source_type: SourceType::InTree, + extra_features, + allow_features: "", + cargo_args: Vec::new(), + }); // don't create a stage0-sysroot/bin directory. if target_compiler.stage > 0 { if builder.config.rust_debuginfo_level_tools == DebuginfoLevel::None { // Due to LTO a lot of debug info from C++ dependencies such as jemalloc can make it into // our final binaries - compile::strip_debug(builder, target, &tool_rustdoc); + compile::strip_debug(builder, target, &tool_path); } let bin_rustdoc = bin_rustdoc(); - builder.copy_link(&tool_rustdoc, &bin_rustdoc); + builder.copy_link(&tool_path, &bin_rustdoc); bin_rustdoc } else { - tool_rustdoc + tool_path } } } @@ -1084,7 +1065,7 @@ macro_rules! tool_extended { } impl Step for $name { - type Output = PathBuf; + type Output = ToolBuildResult; const DEFAULT: bool = true; // Overridden by `should_run_tool_build_step` const ONLY_HOSTS: bool = true; @@ -1104,7 +1085,7 @@ macro_rules! tool_extended { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { let Self { compiler, target } = self; run_tool_build_step( builder, @@ -1150,9 +1131,9 @@ fn run_tool_build_step( tool_name: &'static str, path: &'static str, add_bins_to_sysroot: Option<&[&str]>, -) -> PathBuf { - let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = builder - .ensure(ToolBuild { +) -> ToolBuildResult { + let ToolBuildResult { tool_path, build_compiler, target_compiler } = + builder.ensure(ToolBuild { compiler, target, tool: tool_name, @@ -1177,9 +1158,10 @@ fn run_tool_build_step( } // Return a path into the bin dir. - bindir.join(exe(tool_name, target_compiler.host)) + let path = bindir.join(exe(tool_name, target_compiler.host)); + ToolBuildResult { tool_path: path, build_compiler, target_compiler } } else { - tool_path + ToolBuildResult { tool_path, build_compiler, target_compiler } } } diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index daef8fa3c8a3..b7820acc7e8b 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -1415,7 +1415,7 @@ impl<'a> Builder<'a> { let mut dylib_path = helpers::dylib_path(); dylib_path.insert(0, self.sysroot(run_compiler).join("lib")); - let mut cmd = command(cargo_clippy); + let mut cmd = command(cargo_clippy.tool_path); cmd.env(helpers::dylib_path_var(), env::join_paths(&dylib_path).unwrap()); cmd.env("CARGO", &self.initial_cargo); cmd @@ -1430,8 +1430,8 @@ impl<'a> Builder<'a> { let cargo_miri = self.ensure(tool::CargoMiri { compiler: build_compiler, target: self.build.build }); // Invoke cargo-miri, make sure it can find miri and cargo. - let mut cmd = command(cargo_miri); - cmd.env("MIRI", &miri); + let mut cmd = command(cargo_miri.tool_path); + cmd.env("MIRI", &miri.tool_path); cmd.env("CARGO", &self.initial_cargo); // Need to add the `run_compiler` libs. Those are the libs produces *by* `build_compiler`, // so they match the Miri we just built. However this means they are actually living one diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index 433e02299c14..a828a844f810 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -797,10 +797,7 @@ mod dist { // stage minus 1 if --stage is not 0. Very confusing! assert_eq!( first(builder.cache.all::()), - &[ - tool::Rustdoc { compiler: Compiler { host: a, stage: 1 } }, - tool::Rustdoc { compiler: Compiler { host: a, stage: 2 } }, - ] + &[tool::Rustdoc { compiler: Compiler { host: a, stage: 2 } },] ); } From 6cf650fce7c9a599b18df72b1bac202a19eb81cd Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 16:32:13 +0300 Subject: [PATCH 071/255] remove manually handled stage offs Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/run.rs | 6 +----- src/bootstrap/src/core/build_steps/test.rs | 25 +++++----------------- src/bootstrap/src/core/build_steps/tool.rs | 17 ++++++--------- src/bootstrap/src/core/builder/mod.rs | 25 ++++++++++------------ 4 files changed, 24 insertions(+), 49 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/run.rs b/src/bootstrap/src/core/build_steps/run.rs index 2b17e02cae5a..fea8232296ec 100644 --- a/src/bootstrap/src/core/build_steps/run.rs +++ b/src/bootstrap/src/core/build_steps/run.rs @@ -126,11 +126,7 @@ impl Step for Miri { // This compiler runs on the host, we'll just use it for the target. let target_compiler = builder.compiler(stage, host); - // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise - // we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage - // compilers, which isn't what we want. Rustdoc should be linked in the same way as the - // rustc compiler it's paired with, so it must be built with the previous stage compiler. - let host_compiler = builder.compiler(stage - 1, host); + let host_compiler = tool::get_tool_rustc_compiler(builder, target_compiler); // Get a target sysroot for Miri. let miri_sysroot = test::Miri::build_miri_sysroot(builder, target_compiler, target); diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 1820c13a861c..e871a40731e3 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -523,16 +523,11 @@ impl Step for Miri { // This compiler runs on the host, we'll just use it for the target. let target_compiler = builder.compiler(stage, host); - // Similar to `compile::Assemble`, build with the previous stage's compiler. Otherwise - // we'd have stageN/bin/rustc and stageN/bin/rustdoc be effectively different stage - // compilers, which isn't what we want. Rustdoc should be linked in the same way as the - // rustc compiler it's paired with, so it must be built with the previous stage compiler. - let host_compiler = builder.compiler(stage - 1, host); // Build our tools. - let miri = builder.ensure(tool::Miri { compiler: host_compiler, target: host }); + let miri = builder.ensure(tool::Miri { compiler: target_compiler, target: host }); // the ui tests also assume cargo-miri has been built - builder.ensure(tool::CargoMiri { compiler: host_compiler, target: host }); + builder.ensure(tool::CargoMiri { compiler: target_compiler, target: host }); // We also need sysroots, for Miri and for the host (the latter for build scripts). // This is for the tests so everything is done with the target compiler. @@ -543,7 +538,8 @@ impl Step for Miri { // Miri has its own "target dir" for ui test dependencies. Make sure it gets cleared when // the sysroot gets rebuilt, to avoid "found possibly newer version of crate `std`" errors. if !builder.config.dry_run() { - let ui_test_dep_dir = builder.stage_out(host_compiler, Mode::ToolStd).join("miri_ui"); + let ui_test_dep_dir = + builder.stage_out(miri.build_compiler, Mode::ToolStd).join("miri_ui"); // The mtime of `miri_sysroot` changes when the sysroot gets rebuilt (also see // ). // We can hence use that directly as a signal to clear the ui test dir. @@ -554,7 +550,7 @@ impl Step for Miri { // This is with the Miri crate, so it uses the host compiler. let mut cargo = tool::prepare_tool_cargo( builder, - host_compiler, + miri.build_compiler, Mode::ToolRustc, host, Kind::Test, @@ -1722,17 +1718,6 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the // If we're using `--stage 0`, we should provide the bootstrap cargo. builder.initial_cargo.clone() } else { - // We need to properly build cargo using the suitable stage compiler. - - let compiler = builder.download_rustc().then_some(compiler).unwrap_or_else(|| - // HACK: currently tool stages are off-by-one compared to compiler stages, i.e. if - // you give `tool::Cargo` a stage 1 rustc, it will cause stage 2 rustc to be built - // and produce a cargo built with stage 2 rustc. To fix this, we need to chop off - // the compiler stage by 1 to align with expected `./x test run-make --stage N` - // behavior, i.e. we need to pass `N - 1` compiler stage to cargo. See also Miri - // which does a similar hack. - builder.compiler(builder.top_stage - 1, compiler.host)); - builder.ensure(tool::Cargo { compiler, target: compiler.host }) }; diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index cbb973428e2c..f734776a3d87 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -274,7 +274,10 @@ pub fn prepare_tool_cargo( cargo } -fn get_tool_rustc_compiler(builder: &Builder<'_>, target_compiler: Compiler) -> Compiler { +pub(crate) fn get_tool_rustc_compiler( + builder: &Builder<'_>, + target_compiler: Compiler, +) -> Compiler { if builder.download_rustc() && target_compiler.stage == 1 { // We already have the stage 1 compiler, we don't need to cut the stage. builder.compiler(target_compiler.stage, builder.config.build) @@ -555,8 +558,7 @@ impl Step for ErrorIndex { // src/tools/error-index-generator` which almost nobody does. // Normally, `x.py test` or `x.py doc` will use the // `ErrorIndex::command` function instead. - let compiler = - run.builder.compiler(run.builder.top_stage.saturating_sub(1), run.builder.config.build); + let compiler = run.builder.compiler(run.builder.top_stage, run.builder.config.build); run.builder.ensure(ErrorIndex { compiler }); } @@ -631,13 +633,8 @@ impl Step for Rustdoc { } fn make_run(run: RunConfig<'_>) { - run.builder.ensure(Rustdoc { - // NOTE: this is somewhat unique in that we actually want a *target* - // compiler here, because rustdoc *is* a compiler. We won't be using - // this as the compiler to build with, but rather this is "what - // compiler are we producing"? - compiler: run.builder.compiler(run.builder.top_stage, run.target), - }); + run.builder + .ensure(Rustdoc { compiler: run.builder.compiler(run.builder.top_stage, run.target) }); } fn run(self, builder: &Builder<'_>) -> PathBuf { diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index b7820acc7e8b..c94bdd0a2468 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -1408,10 +1408,9 @@ impl<'a> Builder<'a> { return cmd; } - let build_compiler = self.compiler(run_compiler.stage - 1, self.build.build); - self.ensure(tool::Clippy { compiler: build_compiler, target: self.build.build }); + let _ = self.ensure(tool::Clippy { compiler: run_compiler, target: self.build.build }); let cargo_clippy = - self.ensure(tool::CargoClippy { compiler: build_compiler, target: self.build.build }); + self.ensure(tool::CargoClippy { compiler: run_compiler, target: self.build.build }); let mut dylib_path = helpers::dylib_path(); dylib_path.insert(0, self.sysroot(run_compiler).join("lib")); @@ -1423,23 +1422,21 @@ impl<'a> Builder<'a> { pub fn cargo_miri_cmd(&self, run_compiler: Compiler) -> BootstrapCommand { assert!(run_compiler.stage > 0, "miri can not be invoked at stage 0"); - let build_compiler = self.compiler(run_compiler.stage - 1, self.build.build); - // Prepare the tools - let miri = self.ensure(tool::Miri { compiler: build_compiler, target: self.build.build }); + let miri = self.ensure(tool::Miri { compiler: run_compiler, target: self.build.build }); let cargo_miri = - self.ensure(tool::CargoMiri { compiler: build_compiler, target: self.build.build }); + self.ensure(tool::CargoMiri { compiler: run_compiler, target: self.build.build }); // Invoke cargo-miri, make sure it can find miri and cargo. let mut cmd = command(cargo_miri.tool_path); cmd.env("MIRI", &miri.tool_path); cmd.env("CARGO", &self.initial_cargo); - // Need to add the `run_compiler` libs. Those are the libs produces *by* `build_compiler`, - // so they match the Miri we just built. However this means they are actually living one - // stage up, i.e. we are running `stage0-tools-bin/miri` with the libraries in `stage1/lib`. - // This is an unfortunate off-by-1 caused (possibly) by the fact that Miri doesn't have an - // "assemble" step like rustc does that would cross the stage boundary. We can't use - // `add_rustc_lib_path` as that's a NOP on Windows but we do need these libraries added to - // the PATH due to the stage mismatch. + // Need to add the `run_compiler` libs. Those are the libs produces *by* `build_compiler` + // in `tool::ToolBuild` step, so they match the Miri we just built. However this means they + // are actually living one stage up, i.e. we are running `stage0-tools-bin/miri` with the + // libraries in `stage1/lib`. This is an unfortunate off-by-1 caused (possibly) by the fact + // that Miri doesn't have an "assemble" step like rustc does that would cross the stage boundary. + // We can't use `add_rustc_lib_path` as that's a NOP on Windows but we do need these libraries + // added to the PATH due to the stage mismatch. // Also see https://github.com/rust-lang/rust/pull/123192#issuecomment-2028901503. add_dylib_path(self.rustc_lib_paths(run_compiler), &mut cmd); cmd From 5e5b1b054aae3407f4226ccae2b321e114990776 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 15:34:34 +0000 Subject: [PATCH 072/255] document tool implementations Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/tool.rs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index f734776a3d87..7adb7b4681fb 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -1,3 +1,14 @@ +//! This module handles building and managing various tools in bootstrap +//! build system. +//! +//! **What It Does** +//! - Defines how tools are built, configured and installed. +//! - Manages tool dependencies and build steps. +//! - Copies built tool binaries to the correct locations. +//! +//! Each Rust tool **MUST** utilize `ToolBuild` inside their `Step` logic, +//! return `ToolBuildResult` and should never prepare `cargo` invocations manually. + use std::path::PathBuf; use std::{env, fs}; @@ -64,10 +75,16 @@ impl Builder<'_> { } } +/// Result of the tool build process. Each `Step` in this module is responsible +/// for using this type as `type Output = ToolBuildResult;` #[derive(Clone)] pub struct ToolBuildResult { + /// Executable path of the corresponding tool that was built. pub tool_path: PathBuf, + /// Compiler used to build the tool. For non-`ToolRustc` tools this is equal to `target_compiler`. + /// For `ToolRustc` this is one stage before of the `target_compiler`. pub build_compiler: Compiler, + /// Target compiler passed to `Step`. pub target_compiler: Compiler, } @@ -274,6 +291,7 @@ pub fn prepare_tool_cargo( cargo } +/// Handle stage-off logic for `ToolRustc` tools when necessary. pub(crate) fn get_tool_rustc_compiler( builder: &Builder<'_>, target_compiler: Compiler, From baef666f788108620263b5d851d845735346acaa Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 16:00:06 +0000 Subject: [PATCH 073/255] adapt tool module to `ToolBuildResult` Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/compile.rs | 26 +- src/bootstrap/src/core/build_steps/dist.rs | 8 +- src/bootstrap/src/core/build_steps/perf.rs | 2 +- src/bootstrap/src/core/build_steps/test.rs | 18 +- src/bootstrap/src/core/build_steps/tool.rs | 312 +++++++++--------- src/bootstrap/src/core/builder/mod.rs | 2 +- 6 files changed, 189 insertions(+), 179 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index aa08dd7e4248..8a0d8b979c37 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -1977,13 +1977,14 @@ impl Step for Assemble { let maybe_install_llvm_bitcode_linker = |compiler| { if builder.config.llvm_bitcode_linker_enabled { trace!("llvm-bitcode-linker enabled, installing"); - let src_path = builder.ensure(crate::core::build_steps::tool::LlvmBitcodeLinker { - compiler, - target: target_compiler.host, - extra_features: vec![], - }); + let llvm_bitcode_linker = + builder.ensure(crate::core::build_steps::tool::LlvmBitcodeLinker { + compiler, + target: target_compiler.host, + extra_features: vec![], + }); let tool_exe = exe("llvm-bitcode-linker", target_compiler.host); - builder.copy_link(&src_path, &libdir_bin.join(tool_exe)); + builder.copy_link(&llvm_bitcode_linker.tool_path, &libdir_bin.join(tool_exe)); } }; @@ -2171,14 +2172,13 @@ impl Step for Assemble { // logic to create the final binary. This is used by the // `wasm32-wasip2` target of Rust. if builder.tool_enabled("wasm-component-ld") { - let wasm_component_ld_exe = - builder.ensure(crate::core::build_steps::tool::WasmComponentLd { - compiler: build_compiler, - target: target_compiler.host, - }); + let wasm_component = builder.ensure(crate::core::build_steps::tool::WasmComponentLd { + compiler: build_compiler, + target: target_compiler.host, + }); builder.copy_link( - &wasm_component_ld_exe, - &libdir_bin.join(wasm_component_ld_exe.file_name().unwrap()), + &wasm_component.tool_path, + &libdir_bin.join(wasm_component.tool_path.file_name().unwrap()), ); } diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 403aa48bad9b..f742a277a95a 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -430,7 +430,7 @@ impl Step for Rustc { }, builder.kind, ) { - builder.install(&ra_proc_macro_srv, &image.join("libexec"), 0o755); + builder.install(&ra_proc_macro_srv.tool_path, &image.join("libexec"), 0o755); } let libdir_relative = builder.libdir_relative(compiler); @@ -1134,7 +1134,7 @@ impl Step for Cargo { let mut tarball = Tarball::new(builder, "cargo", &target.triple); tarball.set_overlay(OverlayKind::Cargo); - tarball.add_file(cargo, "bin", 0o755); + tarball.add_file(cargo.tool_path, "bin", 0o755); tarball.add_file(etc.join("_cargo"), "share/zsh/site-functions", 0o644); tarball.add_renamed_file(etc.join("cargo.bashcomp.sh"), "etc/bash_completion.d", "cargo"); tarball.add_dir(etc.join("man"), "share/man/man1"); @@ -1222,7 +1222,7 @@ impl Step for RustAnalyzer { let mut tarball = Tarball::new(builder, "rust-analyzer", &target.triple); tarball.set_overlay(OverlayKind::RustAnalyzer); tarball.is_preview(true); - tarball.add_file(rust_analyzer, "bin", 0o755); + tarball.add_file(rust_analyzer.tool_path, "bin", 0o755); tarball.add_legal_and_readme_to("share/doc/rust-analyzer"); Some(tarball.generate()) } @@ -2272,7 +2272,7 @@ impl Step for LlvmBitcodeLinker { tarball.set_overlay(OverlayKind::LlvmBitcodeLinker); tarball.is_preview(true); - tarball.add_file(llbc_linker, self_contained_bin_dir, 0o755); + tarball.add_file(llbc_linker.tool_path, self_contained_bin_dir, 0o755); Some(tarball.generate()) } diff --git a/src/bootstrap/src/core/build_steps/perf.rs b/src/bootstrap/src/core/build_steps/perf.rs index 98c63a41e768..6962001fdc24 100644 --- a/src/bootstrap/src/core/build_steps/perf.rs +++ b/src/bootstrap/src/core/build_steps/perf.rs @@ -166,7 +166,7 @@ Consider setting `rust.debuginfo-level = 1` in `config.toml`."#); let results_dir = rustc_perf_dir.join("results"); builder.create_dir(&results_dir); - let mut cmd = command(collector); + let mut cmd = command(collector.tool_path); // We need to set the working directory to `src/tools/rustc-perf`, so that it can find the directory // with compile-time benchmarks. diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index e871a40731e3..c7e9675faa2a 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -263,7 +263,7 @@ impl Step for Cargotest { let _time = helpers::timeit(builder); let mut cmd = builder.tool_cmd(Tool::CargoTest); - cmd.arg(&cargo) + cmd.arg(&cargo.tool_path) .arg(&out_dir) .args(builder.config.test_args()) .env("RUSTC", builder.rustc(compiler)) @@ -1718,7 +1718,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the // If we're using `--stage 0`, we should provide the bootstrap cargo. builder.initial_cargo.clone() } else { - builder.ensure(tool::Cargo { compiler, target: compiler.host }) + builder.ensure(tool::Cargo { compiler, target: compiler.host }).tool_path }; cmd.arg("--cargo-path").arg(cargo_path); @@ -1739,9 +1739,10 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the // Use the beta compiler for jsondocck let json_compiler = compiler.with_stage(0); cmd.arg("--jsondocck-path") - .arg(builder.ensure(tool::JsonDocCk { compiler: json_compiler, target })); - cmd.arg("--jsondoclint-path") - .arg(builder.ensure(tool::JsonDocLint { compiler: json_compiler, target })); + .arg(builder.ensure(tool::JsonDocCk { compiler: json_compiler, target }).tool_path); + cmd.arg("--jsondoclint-path").arg( + builder.ensure(tool::JsonDocLint { compiler: json_compiler, target }).tool_path, + ); } if matches!(mode, "coverage-map" | "coverage-run") { @@ -2976,12 +2977,15 @@ impl Step for RemoteCopyLibs { builder.info(&format!("REMOTE copy libs to emulator ({target})")); - let server = builder.ensure(tool::RemoteTestServer { compiler, target }); + let remote_test_server = builder.ensure(tool::RemoteTestServer { compiler, target }); // Spawn the emulator and wait for it to come online let tool = builder.tool_exe(Tool::RemoteTestClient); let mut cmd = command(&tool); - cmd.arg("spawn-emulator").arg(target.triple).arg(&server).arg(builder.tempdir()); + cmd.arg("spawn-emulator") + .arg(target.triple) + .arg(&remote_test_server.tool_path) + .arg(builder.tempdir()); if let Some(rootfs) = builder.qemu_rootfs(target) { cmd.arg(rootfs); } diff --git a/src/bootstrap/src/core/build_steps/tool.rs b/src/bootstrap/src/core/build_steps/tool.rs index 7adb7b4681fb..39acb646dff4 100644 --- a/src/bootstrap/src/core/build_steps/tool.rs +++ b/src/bootstrap/src/core/build_steps/tool.rs @@ -347,7 +347,7 @@ macro_rules! bootstrap_tool { self.ensure($name { compiler: self.compiler(0, self.config.build), target: self.config.build, - }), + }).tool_path, )+ } } @@ -361,7 +361,7 @@ macro_rules! bootstrap_tool { } impl Step for $name { - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.path($path) @@ -383,7 +383,7 @@ macro_rules! bootstrap_tool { skip_all, ), )] - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { $( for submodule in $submodules { builder.require_submodule(submodule, None); @@ -408,7 +408,7 @@ macro_rules! bootstrap_tool { extra_features: vec![], allow_features: concat!($($allow_features)*), cargo_args: vec![] - }).tool_path + }) } } )+ @@ -458,7 +458,7 @@ pub struct OptimizedDist { } impl Step for OptimizedDist { - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.path("src/tools/opt-dist") @@ -471,24 +471,22 @@ impl Step for OptimizedDist { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { // We need to ensure the rustc-perf submodule is initialized when building opt-dist since // the tool requires it to be in place to run. builder.require_submodule("src/tools/rustc-perf", None); - builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "opt-dist", - mode: Mode::ToolBootstrap, - path: "src/tools/opt-dist", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) - .tool_path + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "opt-dist", + mode: Mode::ToolBootstrap, + path: "src/tools/opt-dist", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) } } @@ -502,7 +500,7 @@ pub struct RustcPerf { impl Step for RustcPerf { /// Path to the built `collector` binary. - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.path("src/tools/rustc-perf") @@ -515,7 +513,7 @@ impl Step for RustcPerf { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { // We need to ensure the rustc-perf submodule is initialized. builder.require_submodule("src/tools/rustc-perf", None); @@ -532,12 +530,12 @@ impl Step for RustcPerf { // a CLI. cargo_args: vec!["-p".to_string(), "collector".to_string()], }; - let collector_bin = builder.ensure(tool.clone()).tool_path; + let res = builder.ensure(tool.clone()); // We also need to symlink the `rustc-fake` binary to the corresponding directory, // because `collector` expects it in the same directory. copy_link_tool_bin(builder, tool.compiler, tool.target, tool.mode, "rustc-fake"); - collector_bin + res } } @@ -552,7 +550,7 @@ impl ErrorIndex { // for rustc_private and libLLVM.so, and `sysroot_lib` for libstd, etc. let host = builder.config.build; let compiler = builder.compiler_for(builder.top_stage, host, host); - let mut cmd = command(builder.ensure(ErrorIndex { compiler })); + let mut cmd = command(builder.ensure(ErrorIndex { compiler }).tool_path); let mut dylib_paths = builder.rustc_lib_paths(compiler); dylib_paths.push(PathBuf::from(&builder.sysroot_target_libdir(compiler, compiler.host))); add_dylib_path(dylib_paths, &mut cmd); @@ -561,16 +559,13 @@ impl ErrorIndex { } impl Step for ErrorIndex { - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.path("src/tools/error_index_generator") } fn make_run(run: RunConfig<'_>) { - // Compile the error-index in the same stage as rustdoc to avoid - // recompiling rustdoc twice if we can. - // // NOTE: This `make_run` isn't used in normal situations, only if you // manually build the tool with `x.py build // src/tools/error-index-generator` which almost nobody does. @@ -580,20 +575,18 @@ impl Step for ErrorIndex { run.builder.ensure(ErrorIndex { compiler }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { - builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.compiler.host, - tool: "error_index_generator", - mode: Mode::ToolRustc, - path: "src/tools/error_index_generator", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) - .tool_path + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.compiler.host, + tool: "error_index_generator", + mode: Mode::ToolRustc, + path: "src/tools/error_index_generator", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) } } @@ -604,7 +597,7 @@ pub struct RemoteTestServer { } impl Step for RemoteTestServer { - type Output = PathBuf; + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.path("src/tools/remote-test-server") @@ -617,20 +610,18 @@ impl Step for RemoteTestServer { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { - builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "remote-test-server", - mode: Mode::ToolStd, - path: "src/tools/remote-test-server", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) - .tool_path + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "remote-test-server", + mode: Mode::ToolStd, + path: "src/tools/remote-test-server", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) } } @@ -642,7 +633,7 @@ pub struct Rustdoc { } impl Step for Rustdoc { - type Output = PathBuf; + type Output = ToolBuildResult; const DEFAULT: bool = true; const ONLY_HOSTS: bool = true; @@ -655,15 +646,21 @@ impl Step for Rustdoc { .ensure(Rustdoc { compiler: run.builder.compiler(run.builder.top_stage, run.target) }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { let target_compiler = self.compiler; + let target = target_compiler.host; + if target_compiler.stage == 0 { if !target_compiler.is_snapshot(builder) { panic!("rustdoc in stage 0 must be snapshot rustdoc"); } - return builder.initial_rustdoc.clone(); + + return ToolBuildResult { + tool_path: builder.initial_rustdoc.clone(), + build_compiler: target_compiler, + target_compiler, + }; } - let target = target_compiler.host; let bin_rustdoc = || { let sysroot = builder.sysroot(target_compiler); @@ -693,7 +690,12 @@ impl Step for Rustdoc { let bin_rustdoc = bin_rustdoc(); builder.copy_link(&precompiled_rustdoc, &bin_rustdoc); - return bin_rustdoc; + + return ToolBuildResult { + tool_path: bin_rustdoc, + build_compiler: target_compiler, + target_compiler, + }; } } @@ -709,7 +711,7 @@ impl Step for Rustdoc { extra_features.push("jemalloc".to_string()); } - let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = + let ToolBuildResult { tool_path, build_compiler, target_compiler } = builder.ensure(ToolBuild { compiler: target_compiler, target, @@ -734,9 +736,9 @@ impl Step for Rustdoc { } let bin_rustdoc = bin_rustdoc(); builder.copy_link(&tool_path, &bin_rustdoc); - bin_rustdoc + ToolBuildResult { tool_path: bin_rustdoc, build_compiler, target_compiler } } else { - tool_path + ToolBuildResult { tool_path, build_compiler, target_compiler } } } } @@ -748,7 +750,7 @@ pub struct Cargo { } impl Step for Cargo { - type Output = PathBuf; + type Output = ToolBuildResult; const DEFAULT: bool = true; const ONLY_HOSTS: bool = true; @@ -764,22 +766,20 @@ impl Step for Cargo { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { builder.build.require_submodule("src/tools/cargo", None); - builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "cargo", - mode: Mode::ToolRustc, - path: "src/tools/cargo", - source_type: SourceType::Submodule, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) - .tool_path + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "cargo", + mode: Mode::ToolRustc, + path: "src/tools/cargo", + source_type: SourceType::Submodule, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }) } } @@ -790,7 +790,7 @@ pub struct LldWrapper { } impl Step for LldWrapper { - type Output = (); + type Output = ToolBuildResult; fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> { run.never() @@ -805,26 +805,29 @@ impl Step for LldWrapper { fields(build_compiler = ?self.build_compiler, target_compiler = ?self.target_compiler), ), )] - fn run(self, builder: &Builder<'_>) { + + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { if builder.config.dry_run() { - return; + return ToolBuildResult { + tool_path: Default::default(), + build_compiler: self.build_compiler, + target_compiler: self.target_compiler, + }; } let target = self.target_compiler.host; - let executable = builder - .ensure(ToolBuild { - compiler: self.build_compiler, - target, - tool: "lld-wrapper", - mode: Mode::ToolStd, - path: "src/tools/lld-wrapper", - source_type: SourceType::InTree, - extra_features: Vec::new(), - allow_features: "", - cargo_args: Vec::new(), - }) - .tool_path; + let tool_result = builder.ensure(ToolBuild { + compiler: self.build_compiler, + target, + tool: "lld-wrapper", + mode: Mode::ToolStd, + path: "src/tools/lld-wrapper", + source_type: SourceType::InTree, + extra_features: Vec::new(), + allow_features: "", + cargo_args: Vec::new(), + }); let libdir_bin = builder.sysroot_target_bindir(self.target_compiler, target); t!(fs::create_dir_all(&libdir_bin)); @@ -838,8 +841,11 @@ impl Step for LldWrapper { t!(fs::create_dir_all(&self_contained_lld_dir)); for name in crate::LLD_FILE_NAMES { - builder.copy_link(&executable, &self_contained_lld_dir.join(exe(name, target))); + builder + .copy_link(&tool_result.tool_path, &self_contained_lld_dir.join(exe(name, target))); } + + tool_result } } @@ -854,7 +860,7 @@ impl RustAnalyzer { } impl Step for RustAnalyzer { - type Output = PathBuf; + type Output = ToolBuildResult; const DEFAULT: bool = true; const ONLY_HOSTS: bool = true; @@ -870,20 +876,18 @@ impl Step for RustAnalyzer { }); } - fn run(self, builder: &Builder<'_>) -> PathBuf { - builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "rust-analyzer", - mode: Mode::ToolRustc, - path: "src/tools/rust-analyzer", - extra_features: vec!["in-rust-tree".to_owned()], - source_type: SourceType::InTree, - allow_features: RustAnalyzer::ALLOW_FEATURES, - cargo_args: Vec::new(), - }) - .tool_path + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { + builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "rust-analyzer", + mode: Mode::ToolRustc, + path: "src/tools/rust-analyzer", + extra_features: vec!["in-rust-tree".to_owned()], + source_type: SourceType::InTree, + allow_features: RustAnalyzer::ALLOW_FEATURES, + cargo_args: Vec::new(), + }) } } @@ -894,7 +898,7 @@ pub struct RustAnalyzerProcMacroSrv { } impl Step for RustAnalyzerProcMacroSrv { - type Output = Option; + type Output = Option; const DEFAULT: bool = true; const ONLY_HOSTS: bool = true; @@ -916,28 +920,27 @@ impl Step for RustAnalyzerProcMacroSrv { }); } - fn run(self, builder: &Builder<'_>) -> Option { - let path = builder - .ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "rust-analyzer-proc-macro-srv", - mode: Mode::ToolRustc, - path: "src/tools/rust-analyzer/crates/proc-macro-srv-cli", - extra_features: vec!["in-rust-tree".to_owned()], - source_type: SourceType::InTree, - allow_features: RustAnalyzer::ALLOW_FEATURES, - cargo_args: Vec::new(), - }) - .tool_path; + fn run(self, builder: &Builder<'_>) -> Option { + let tool_result = builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "rust-analyzer-proc-macro-srv", + mode: Mode::ToolRustc, + path: "src/tools/rust-analyzer/crates/proc-macro-srv-cli", + extra_features: vec!["in-rust-tree".to_owned()], + source_type: SourceType::InTree, + allow_features: RustAnalyzer::ALLOW_FEATURES, + cargo_args: Vec::new(), + }); // Copy `rust-analyzer-proc-macro-srv` to `/libexec/` // so that r-a can use it. let libexec_path = builder.sysroot(self.compiler).join("libexec"); t!(fs::create_dir_all(&libexec_path)); - builder.copy_link(&path, &libexec_path.join("rust-analyzer-proc-macro-srv")); + builder + .copy_link(&tool_result.tool_path, &libexec_path.join("rust-analyzer-proc-macro-srv")); - Some(path) + Some(tool_result) } } @@ -949,7 +952,7 @@ pub struct LlvmBitcodeLinker { } impl Step for LlvmBitcodeLinker { - type Output = PathBuf; + type Output = ToolBuildResult; const DEFAULT: bool = true; const ONLY_HOSTS: bool = true; @@ -971,31 +974,34 @@ impl Step for LlvmBitcodeLinker { feature = "tracing", instrument(level = "debug", name = "LlvmBitcodeLinker::run", skip_all) )] - fn run(self, builder: &Builder<'_>) -> PathBuf { - let ToolBuildResult { tool_path, build_compiler: _build_compiler, target_compiler } = - builder.ensure(ToolBuild { - compiler: self.compiler, - target: self.target, - tool: "llvm-bitcode-linker", - mode: Mode::ToolRustc, - path: "src/tools/llvm-bitcode-linker", - source_type: SourceType::InTree, - extra_features: self.extra_features, - allow_features: "", - cargo_args: Vec::new(), - }); + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { + let tool_result = builder.ensure(ToolBuild { + compiler: self.compiler, + target: self.target, + tool: "llvm-bitcode-linker", + mode: Mode::ToolRustc, + path: "src/tools/llvm-bitcode-linker", + source_type: SourceType::InTree, + extra_features: self.extra_features, + allow_features: "", + cargo_args: Vec::new(), + }); - if target_compiler.stage > 0 { + if tool_result.target_compiler.stage > 0 { let bindir_self_contained = builder - .sysroot(target_compiler) + .sysroot(tool_result.target_compiler) .join(format!("lib/rustlib/{}/bin/self-contained", self.target.triple)); t!(fs::create_dir_all(&bindir_self_contained)); - let bin_destination = - bindir_self_contained.join(exe("llvm-bitcode-linker", target_compiler.host)); - builder.copy_link(&tool_path, &bin_destination); - bin_destination + let bin_destination = bindir_self_contained + .join(exe("llvm-bitcode-linker", tool_result.target_compiler.host)); + builder.copy_link(&tool_result.tool_path, &bin_destination); + ToolBuildResult { + tool_path: bin_destination, + build_compiler: tool_result.build_compiler, + target_compiler: tool_result.target_compiler, + } } else { - tool_path + tool_result } } } @@ -1214,7 +1220,7 @@ pub struct TestFloatParse { } impl Step for TestFloatParse { - type Output = (); + type Output = ToolBuildResult; const ONLY_HOSTS: bool = true; const DEFAULT: bool = false; @@ -1222,7 +1228,7 @@ impl Step for TestFloatParse { run.path("src/etc/test-float-parse") } - fn run(self, builder: &Builder<'_>) { + fn run(self, builder: &Builder<'_>) -> ToolBuildResult { let bootstrap_host = builder.config.build; let compiler = builder.compiler(builder.top_stage, bootstrap_host); @@ -1236,7 +1242,7 @@ impl Step for TestFloatParse { extra_features: Vec::new(), allow_features: "", cargo_args: Vec::new(), - }); + }) } } diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index c94bdd0a2468..25fa10e08111 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -1392,7 +1392,7 @@ impl<'a> Builder<'a> { } pub fn rustdoc(&self, compiler: Compiler) -> PathBuf { - self.ensure(tool::Rustdoc { compiler }) + self.ensure(tool::Rustdoc { compiler }).tool_path } pub fn cargo_clippy_cmd(&self, run_compiler: Compiler) -> BootstrapCommand { From 60ade6c1d7c8bbac52d6d1b9ed6703582028f954 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 16:07:42 +0000 Subject: [PATCH 074/255] add test coverage for `tool::get_tool_rustc_compiler` Signed-off-by: onur-ozkan --- src/bootstrap/src/core/builder/tests.rs | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index a828a844f810..b6aa9e7c8446 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -1085,3 +1085,33 @@ fn test_is_builder_target() { assert!(!builder.is_builder_target(target2)); } } + +#[test] +fn test_get_tool_rustc_compiler() { + let mut config = configure("build", &[], &[]); + config.download_rustc_commit = None; + let build = Build::new(config); + let builder = Builder::new(&build); + + let target_triple_1 = TargetSelection::from_user(TEST_TRIPLE_1); + + let compiler = Compiler { stage: 2, host: target_triple_1 }; + let expected = Compiler { stage: 1, host: target_triple_1 }; + let actual = tool::get_tool_rustc_compiler(&builder, compiler); + assert_eq!(expected, actual); + + let compiler = Compiler { stage: 1, host: target_triple_1 }; + let expected = Compiler { stage: 0, host: target_triple_1 }; + let actual = tool::get_tool_rustc_compiler(&builder, compiler); + assert_eq!(expected, actual); + + let mut config = configure("build", &[], &[]); + config.download_rustc_commit = Some("".to_owned()); + let build = Build::new(config); + let builder = Builder::new(&build); + + let compiler = Compiler { stage: 1, host: target_triple_1 }; + let expected = Compiler { stage: 1, host: target_triple_1 }; + let actual = tool::get_tool_rustc_compiler(&builder, compiler); + assert_eq!(expected, actual); +} From 26f588bba4e2b2309628ecc1322b6d254253eae7 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Tue, 18 Feb 2025 16:28:05 +0000 Subject: [PATCH 075/255] fix cargo tests Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/test.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index c7e9675faa2a..db2f433bfe15 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -300,7 +300,9 @@ impl Step for Cargo { fn run(self, builder: &Builder<'_>) { let compiler = builder.compiler(self.stage, self.host); - builder.ensure(tool::Cargo { compiler, target: self.host }); + let cargo = builder.ensure(tool::Cargo { compiler, target: self.host }); + let compiler = cargo.build_compiler; + let cargo = tool::prepare_tool_cargo( builder, compiler, From aecde199adeed94f79c612bb380e76e8775a6653 Mon Sep 17 00:00:00 2001 From: Ed Page Date: Tue, 18 Feb 2025 10:28:36 -0600 Subject: [PATCH 076/255] docs(dev): Remove reference to features_untracked This was removed in #114723 --- src/doc/rustc-dev-guide/src/implementing_new_features.md | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/src/doc/rustc-dev-guide/src/implementing_new_features.md b/src/doc/rustc-dev-guide/src/implementing_new_features.md index 5b67ccd7f4c5..c77b872cf5c1 100644 --- a/src/doc/rustc-dev-guide/src/implementing_new_features.md +++ b/src/doc/rustc-dev-guide/src/implementing_new_features.md @@ -167,9 +167,7 @@ a new unstable feature: 1. Prevent usage of the new feature unless the feature gate is set. You can check it in most places in the compiler using the - expression `tcx.features().$feature_name` (or - `sess.features_untracked().$feature_name` if the - tcx is unavailable) + expression `tcx.features().$feature_name` If the feature gate is not set, you should either maintain the pre-feature behavior or raise an error, depending on From 5e92241b618714adaa3894afc992b648ba5889a8 Mon Sep 17 00:00:00 2001 From: Ed Page Date: Tue, 18 Feb 2025 10:35:13 -0600 Subject: [PATCH 077/255] docs(dev): Access features as functions, not members This was changed in #132027 --- src/doc/rustc-dev-guide/src/implementing_new_features.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/doc/rustc-dev-guide/src/implementing_new_features.md b/src/doc/rustc-dev-guide/src/implementing_new_features.md index c77b872cf5c1..fda38ef4fc01 100644 --- a/src/doc/rustc-dev-guide/src/implementing_new_features.md +++ b/src/doc/rustc-dev-guide/src/implementing_new_features.md @@ -167,7 +167,7 @@ a new unstable feature: 1. Prevent usage of the new feature unless the feature gate is set. You can check it in most places in the compiler using the - expression `tcx.features().$feature_name` + expression `tcx.features().$feature_name()` If the feature gate is not set, you should either maintain the pre-feature behavior or raise an error, depending on From fdba8a7c47398e8bd99cb22ede199bf9a0167eaf Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Mon, 17 Feb 2025 09:35:47 -0800 Subject: [PATCH 078/255] update version placeholders (cherry picked from commit e4840ce59bdddb19394df008c5c26d9c493725f8) --- compiler/rustc_feature/src/accepted.rs | 4 ++-- compiler/rustc_feature/src/unstable.rs | 22 +++++++++---------- .../src/deref_into_dyn_supertrait.rs | 2 +- library/alloc/src/slice.rs | 2 +- library/alloc/src/vec/mod.rs | 2 +- library/core/src/error.rs | 2 +- library/core/src/hint.rs | 2 +- library/core/src/num/f32.rs | 8 +++---- library/core/src/num/f64.rs | 8 +++---- library/core/src/num/nonzero.rs | 4 ++-- library/core/src/slice/mod.rs | 8 +++---- library/core/src/str/mod.rs | 10 ++++----- library/std/src/collections/hash/map.rs | 4 ++-- library/std/src/io/cursor.rs | 4 ++-- library/std/src/sync/once_lock.rs | 2 +- library/std/src/sync/poison/once.rs | 4 ++-- 16 files changed, 44 insertions(+), 44 deletions(-) diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs index 2dfb0c8e0409..d50fe8c6a3e6 100644 --- a/compiler/rustc_feature/src/accepted.rs +++ b/compiler/rustc_feature/src/accepted.rs @@ -387,7 +387,7 @@ declare_features! ( /// Allows `#[target_feature(...)]`. (accepted, target_feature, "1.27.0", None), /// Allows the use of `#[target_feature]` on safe functions. - (accepted, target_feature_11, "CURRENT_RUSTC_VERSION", Some(69098)), + (accepted, target_feature_11, "1.86.0", Some(69098)), /// Allows `fn main()` with return types which implements `Termination` (RFC 1937). (accepted, termination_trait, "1.26.0", Some(43301)), /// Allows `#[test]` functions where the return type implements `Termination` (RFC 1937). @@ -401,7 +401,7 @@ declare_features! ( (accepted, track_caller, "1.46.0", Some(47809)), /// Allows dyn upcasting trait objects via supertraits. /// Dyn upcasting is casting, e.g., `dyn Foo -> dyn Bar` where `Foo: Bar`. - (accepted, trait_upcasting, "CURRENT_RUSTC_VERSION", Some(65991)), + (accepted, trait_upcasting, "1.86.0", Some(65991)), /// Allows #[repr(transparent)] on univariant enums (RFC 2645). (accepted, transparent_enums, "1.42.0", Some(60405)), /// Allows indexing tuples. diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index e852f239aa27..db1d36f4a7f8 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -203,7 +203,7 @@ declare_features! ( /// Allows using anonymous lifetimes in argument-position impl-trait. (unstable, anonymous_lifetime_in_impl_trait, "1.63.0", None), /// Allows access to the emscripten_wasm_eh config, used by panic_unwind and unwind - (internal, cfg_emscripten_wasm_eh, "CURRENT_RUSTC_VERSION", None), + (internal, cfg_emscripten_wasm_eh, "1.86.0", None), /// Allows identifying the `compiler_builtins` crate. (internal, compiler_builtins, "1.13.0", None), /// Allows writing custom MIR @@ -360,7 +360,7 @@ declare_features! ( /// Allows `extern "C-cmse-nonsecure-call" fn()`. (unstable, abi_c_cmse_nonsecure_call, "1.51.0", Some(81391)), /// Allows `extern "gpu-kernel" fn()`. - (unstable, abi_gpu_kernel, "CURRENT_RUSTC_VERSION", Some(135467)), + (unstable, abi_gpu_kernel, "1.86.0", Some(135467)), /// Allows `extern "msp430-interrupt" fn()`. (unstable, abi_msp430_interrupt, "1.16.0", Some(38487)), /// Allows `extern "ptx-*" fn()`. @@ -404,7 +404,7 @@ declare_features! ( /// Allows the use of `#[cfg()]`. (unstable, cfg_boolean_literals, "1.83.0", Some(131204)), /// Allows the use of `#[cfg(contract_checks)` to check if contract checks are enabled. - (unstable, cfg_contract_checks, "CURRENT_RUSTC_VERSION", Some(128044)), + (unstable, cfg_contract_checks, "1.86.0", Some(128044)), /// Allows the use of `#[cfg(overflow_checks)` to check if integer overflow behaviour. (unstable, cfg_overflow_checks, "1.71.0", Some(111466)), /// Provides the relocation model information as cfg entry @@ -448,9 +448,9 @@ declare_features! ( /// Allows the `?` operator in const contexts. (unstable, const_try, "1.56.0", Some(74935)), /// Allows use of contracts attributes. - (incomplete, contracts, "CURRENT_RUSTC_VERSION", Some(128044)), + (incomplete, contracts, "1.86.0", Some(128044)), /// Allows access to internal machinery used to implement contracts. - (internal, contracts_internals, "CURRENT_RUSTC_VERSION", Some(128044)), + (internal, contracts_internals, "1.86.0", Some(128044)), /// Allows coroutines to be cloned. (unstable, coroutine_clone, "1.65.0", Some(95360)), /// Allows defining coroutines. @@ -491,7 +491,7 @@ declare_features! ( /// for functions with varargs. (unstable, extended_varargs_abi_support, "1.65.0", Some(100189)), /// Allows using `system` as a calling convention with varargs. - (unstable, extern_system_varargs, "CURRENT_RUSTC_VERSION", Some(136946)), + (unstable, extern_system_varargs, "1.86.0", Some(136946)), /// Allows defining `extern type`s. (unstable, extern_types, "1.23.0", Some(43467)), /// Allow using 128-bit (quad precision) floating point numbers. @@ -519,7 +519,7 @@ declare_features! ( /// Allows generic parameters and where-clauses on free & associated const items. (incomplete, generic_const_items, "1.73.0", Some(113521)), /// Allows any generic constants being used as pattern type range ends - (incomplete, generic_pattern_types, "CURRENT_RUSTC_VERSION", Some(136574)), + (incomplete, generic_pattern_types, "1.86.0", Some(136574)), /// Allows registering static items globally, possibly across crates, to iterate over at runtime. (unstable, global_registration, "1.80.0", Some(125119)), /// Allows using guards in patterns. @@ -535,7 +535,7 @@ declare_features! ( /// Allows `impl Trait` as output type in `Fn` traits in return position of functions. (unstable, impl_trait_in_fn_trait_return, "1.64.0", Some(99697)), /// Allows `use` associated functions from traits. - (unstable, import_trait_associated_functions, "CURRENT_RUSTC_VERSION", Some(134691)), + (unstable, import_trait_associated_functions, "1.86.0", Some(134691)), /// Allows associated types in inherent impls. (incomplete, inherent_associated_types, "1.52.0", Some(8995)), /// Allow anonymous constants from an inline `const` block in pattern position @@ -543,7 +543,7 @@ declare_features! ( /// Allows using `pointer` and `reference` in intra-doc links (unstable, intra_doc_pointers, "1.51.0", Some(80896)), // Allows using the `kl` and `widekl` target features and the associated intrinsics - (unstable, keylocker_x86, "CURRENT_RUSTC_VERSION", Some(134813)), + (unstable, keylocker_x86, "1.86.0", Some(134813)), // Allows setting the threshold for the `large_assignments` lint. (unstable, large_assignments, "1.52.0", Some(83518)), /// Allow to have type alias types for inter-crate use. @@ -584,7 +584,7 @@ declare_features! ( /// Allows diverging expressions to fall back to `!` rather than `()`. (unstable, never_type_fallback, "1.41.0", Some(65992)), /// Switch `..` syntax to use the new (`Copy + IntoIterator`) range types. - (unstable, new_range, "CURRENT_RUSTC_VERSION", Some(123741)), + (unstable, new_range, "1.86.0", Some(123741)), /// Allows `#![no_core]`. (unstable, no_core, "1.3.0", Some(29639)), /// Allows the use of `no_sanitize` attribute. @@ -636,7 +636,7 @@ declare_features! ( /// Allows string patterns to dereference values to match them. (unstable, string_deref_patterns, "1.67.0", Some(87121)), /// Allows subtrait items to shadow supertrait items. - (unstable, supertrait_item_shadowing, "CURRENT_RUSTC_VERSION", Some(89151)), + (unstable, supertrait_item_shadowing, "1.86.0", Some(89151)), /// Allows using `#[thread_local]` on `static` items. (unstable, thread_local, "1.0.0", Some(29594)), /// Allows defining `trait X = A + B;` alias items. diff --git a/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs b/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs index f418d6d8753b..ec8f84415759 100644 --- a/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs +++ b/compiler/rustc_lint/src/deref_into_dyn_supertrait.rs @@ -12,7 +12,7 @@ declare_lint! { /// for `dyn SubTrait` with a `dyn SuperTrait` type as the `Output` type. /// /// These implementations are "shadowed" by trait upcasting (stabilized since - /// CURRENT_RUSTC_VERSION). The `deref` functions is no longer called implicitly, which might + /// 1.86.0). The `deref` functions is no longer called implicitly, which might /// change behavior compared to previous rustc versions. /// /// ### Example diff --git a/library/alloc/src/slice.rs b/library/alloc/src/slice.rs index c83b1962eb69..dcd95ddf00ff 100644 --- a/library/alloc/src/slice.rs +++ b/library/alloc/src/slice.rs @@ -27,7 +27,7 @@ pub use core::slice::ArrayChunksMut; pub use core::slice::ArrayWindows; #[stable(feature = "inherent_ascii_escape", since = "1.60.0")] pub use core::slice::EscapeAscii; -#[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "get_many_mut", since = "1.86.0")] pub use core::slice::GetDisjointMutError; #[stable(feature = "slice_get_slice", since = "1.28.0")] pub use core::slice::SliceIndex; diff --git a/library/alloc/src/vec/mod.rs b/library/alloc/src/vec/mod.rs index 7d02a15ed7a5..a84bb724473a 100644 --- a/library/alloc/src/vec/mod.rs +++ b/library/alloc/src/vec/mod.rs @@ -2526,7 +2526,7 @@ impl Vec { /// assert_eq!(vec, [1, 2, 3]); /// assert_eq!(vec.pop_if(pred), None); /// ``` - #[stable(feature = "vec_pop_if", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "vec_pop_if", since = "1.86.0")] pub fn pop_if(&mut self, predicate: impl FnOnce(&mut T) -> bool) -> Option { let last = self.last_mut()?; if predicate(last) { self.pop() } else { None } diff --git a/library/core/src/error.rs b/library/core/src/error.rs index 69ad7239954a..94847685ec96 100644 --- a/library/core/src/error.rs +++ b/library/core/src/error.rs @@ -1099,5 +1099,5 @@ impl Error for crate::time::TryFromFloatSecsError {} #[stable(feature = "cstr_from_bytes_until_nul", since = "1.69.0")] impl Error for crate::ffi::FromBytesUntilNulError {} -#[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "get_many_mut", since = "1.86.0")] impl Error for crate::slice::GetDisjointMutError {} diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs index 76afb3b8e20c..5ce282b05de7 100644 --- a/library/core/src/hint.rs +++ b/library/core/src/hint.rs @@ -472,7 +472,7 @@ pub fn spin_loop() { /// During constant evaluation, `black_box` is treated as a no-op. #[inline] #[stable(feature = "bench_black_box", since = "1.66.0")] -#[rustc_const_stable(feature = "const_black_box", since = "CURRENT_RUSTC_VERSION")] +#[rustc_const_stable(feature = "const_black_box", since = "1.86.0")] pub const fn black_box(dummy: T) -> T { crate::intrinsics::black_box(dummy) } diff --git a/library/core/src/num/f32.rs b/library/core/src/num/f32.rs index 4d42997369ff..a200fd531866 100644 --- a/library/core/src/num/f32.rs +++ b/library/core/src/num/f32.rs @@ -741,8 +741,8 @@ impl f32 { /// [`MAX`]: Self::MAX #[inline] #[doc(alias = "nextUp")] - #[stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] - #[rustc_const_stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "float_next_up_down", since = "1.86.0")] + #[rustc_const_stable(feature = "float_next_up_down", since = "1.86.0")] pub const fn next_up(self) -> Self { // Some targets violate Rust's assumption of IEEE semantics, e.g. by flushing // denormals to zero. This is in general unsound and unsupported, but here @@ -792,8 +792,8 @@ impl f32 { /// [`MAX`]: Self::MAX #[inline] #[doc(alias = "nextDown")] - #[stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] - #[rustc_const_stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "float_next_up_down", since = "1.86.0")] + #[rustc_const_stable(feature = "float_next_up_down", since = "1.86.0")] pub const fn next_down(self) -> Self { // Some targets violate Rust's assumption of IEEE semantics, e.g. by flushing // denormals to zero. This is in general unsound and unsupported, but here diff --git a/library/core/src/num/f64.rs b/library/core/src/num/f64.rs index 907971d303ff..de63a462b61a 100644 --- a/library/core/src/num/f64.rs +++ b/library/core/src/num/f64.rs @@ -758,8 +758,8 @@ impl f64 { /// [`MAX`]: Self::MAX #[inline] #[doc(alias = "nextUp")] - #[stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] - #[rustc_const_stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "float_next_up_down", since = "1.86.0")] + #[rustc_const_stable(feature = "float_next_up_down", since = "1.86.0")] pub const fn next_up(self) -> Self { // Some targets violate Rust's assumption of IEEE semantics, e.g. by flushing // denormals to zero. This is in general unsound and unsupported, but here @@ -809,8 +809,8 @@ impl f64 { /// [`MAX`]: Self::MAX #[inline] #[doc(alias = "nextDown")] - #[stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] - #[rustc_const_stable(feature = "float_next_up_down", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "float_next_up_down", since = "1.86.0")] + #[rustc_const_stable(feature = "float_next_up_down", since = "1.86.0")] pub const fn next_down(self) -> Self { // Some targets violate Rust's assumption of IEEE semantics, e.g. by flushing // denormals to zero. This is in general unsound and unsupported, but here diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 21bad6705ab8..332f77bf53e7 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -625,8 +625,8 @@ macro_rules! nonzero_integer { /// # } /// ``` /// - #[stable(feature = "non_zero_count_ones", since = "CURRENT_RUSTC_VERSION")] - #[rustc_const_stable(feature = "non_zero_count_ones", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "non_zero_count_ones", since = "1.86.0")] + #[rustc_const_stable(feature = "non_zero_count_ones", since = "1.86.0")] #[doc(alias = "popcount")] #[doc(alias = "popcnt")] #[must_use = "this returns the result of the operation, \ diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index ed45e26256e5..cc290f75f92d 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -4569,7 +4569,7 @@ impl [T] { /// /// [`get_disjoint_mut`]: slice::get_disjoint_mut /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html - #[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "get_many_mut", since = "1.86.0")] #[inline] pub unsafe fn get_disjoint_unchecked_mut( &mut self, @@ -4636,7 +4636,7 @@ impl [T] { /// } /// assert_eq!(v, &[1, 11, 111]); /// ``` - #[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "get_many_mut", since = "1.86.0")] #[inline] pub fn get_disjoint_mut( &mut self, @@ -5025,7 +5025,7 @@ fn get_disjoint_check_valid( /// assert_eq!(v.get_disjoint_mut([0, 999]), Err(GetDisjointMutError::IndexOutOfBounds)); /// assert_eq!(v.get_disjoint_mut([1, 1]), Err(GetDisjointMutError::OverlappingIndices)); /// ``` -#[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "get_many_mut", since = "1.86.0")] #[derive(Debug, Clone, PartialEq, Eq)] pub enum GetDisjointMutError { /// An index provided was out-of-bounds for the slice. @@ -5034,7 +5034,7 @@ pub enum GetDisjointMutError { OverlappingIndices, } -#[stable(feature = "get_many_mut", since = "CURRENT_RUSTC_VERSION")] +#[stable(feature = "get_many_mut", since = "1.86.0")] impl fmt::Display for GetDisjointMutError { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { let msg = match self { diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs index fd2cd59f88e0..5f47e0e31c1e 100644 --- a/library/core/src/str/mod.rs +++ b/library/core/src/str/mod.rs @@ -365,7 +365,7 @@ impl str { /// ``` #[must_use] #[stable(feature = "is_char_boundary", since = "1.9.0")] - #[rustc_const_stable(feature = "const_is_char_boundary", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_is_char_boundary", since = "1.86.0")] #[inline] pub const fn is_char_boundary(&self, index: usize) -> bool { // 0 is always ok. @@ -822,7 +822,7 @@ impl str { #[inline] #[must_use] #[stable(feature = "str_split_at", since = "1.4.0")] - #[rustc_const_stable(feature = "const_str_split_at", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_str_split_at", since = "1.86.0")] pub const fn split_at(&self, mid: usize) -> (&str, &str) { match self.split_at_checked(mid) { None => slice_error_fail(self, 0, mid), @@ -863,7 +863,7 @@ impl str { #[inline] #[must_use] #[stable(feature = "str_split_at", since = "1.4.0")] - #[rustc_const_stable(feature = "const_str_split_at", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_str_split_at", since = "1.86.0")] pub const fn split_at_mut(&mut self, mid: usize) -> (&mut str, &mut str) { // is_char_boundary checks that the index is in [0, .len()] if self.is_char_boundary(mid) { @@ -903,7 +903,7 @@ impl str { #[inline] #[must_use] #[stable(feature = "split_at_checked", since = "1.80.0")] - #[rustc_const_stable(feature = "const_str_split_at", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_str_split_at", since = "1.86.0")] pub const fn split_at_checked(&self, mid: usize) -> Option<(&str, &str)> { // is_char_boundary checks that the index is in [0, .len()] if self.is_char_boundary(mid) { @@ -944,7 +944,7 @@ impl str { #[inline] #[must_use] #[stable(feature = "split_at_checked", since = "1.80.0")] - #[rustc_const_stable(feature = "const_str_split_at", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_str_split_at", since = "1.86.0")] pub const fn split_at_mut_checked(&mut self, mid: usize) -> Option<(&mut str, &mut str)> { // is_char_boundary checks that the index is in [0, .len()] if self.is_char_boundary(mid) { diff --git a/library/std/src/collections/hash/map.rs b/library/std/src/collections/hash/map.rs index 6a0ff3a29e08..93d254e34f5e 100644 --- a/library/std/src/collections/hash/map.rs +++ b/library/std/src/collections/hash/map.rs @@ -1024,7 +1024,7 @@ where /// ``` #[inline] #[doc(alias = "get_many_mut")] - #[stable(feature = "map_many_mut", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "map_many_mut", since = "1.86.0")] pub fn get_disjoint_mut( &mut self, ks: [&Q; N], @@ -1091,7 +1091,7 @@ where /// ``` #[inline] #[doc(alias = "get_many_unchecked_mut")] - #[stable(feature = "map_many_mut", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "map_many_mut", since = "1.86.0")] pub unsafe fn get_disjoint_unchecked_mut( &mut self, ks: [&Q; N], diff --git a/library/std/src/io/cursor.rs b/library/std/src/io/cursor.rs index 606099c8bc67..08832bbc1e3d 100644 --- a/library/std/src/io/cursor.rs +++ b/library/std/src/io/cursor.rs @@ -153,7 +153,7 @@ impl Cursor { /// let reference = buff.get_mut(); /// ``` #[stable(feature = "rust1", since = "1.0.0")] - #[rustc_const_stable(feature = "const_mut_cursor", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_mut_cursor", since = "1.86.0")] pub const fn get_mut(&mut self) -> &mut T { &mut self.inner } @@ -201,7 +201,7 @@ impl Cursor { /// assert_eq!(buff.position(), 4); /// ``` #[stable(feature = "rust1", since = "1.0.0")] - #[rustc_const_stable(feature = "const_mut_cursor", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "const_mut_cursor", since = "1.86.0")] pub const fn set_position(&mut self, pos: u64) { self.pos = pos; } diff --git a/library/std/src/sync/once_lock.rs b/library/std/src/sync/once_lock.rs index 21e6b65a744f..ffb90b146958 100644 --- a/library/std/src/sync/once_lock.rs +++ b/library/std/src/sync/once_lock.rs @@ -191,7 +191,7 @@ impl OnceLock { /// }) /// ``` #[inline] - #[stable(feature = "once_wait", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "once_wait", since = "1.86.0")] pub fn wait(&self) -> &T { self.once.wait_force(); diff --git a/library/std/src/sync/poison/once.rs b/library/std/src/sync/poison/once.rs index d2938b7a0c12..103e51954079 100644 --- a/library/std/src/sync/poison/once.rs +++ b/library/std/src/sync/poison/once.rs @@ -284,7 +284,7 @@ impl Once { /// If this [`Once`] has been poisoned because an initialization closure has /// panicked, this method will also panic. Use [`wait_force`](Self::wait_force) /// if this behavior is not desired. - #[stable(feature = "once_wait", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "once_wait", since = "1.86.0")] pub fn wait(&self) { if !self.inner.is_completed() { self.inner.wait(false); @@ -293,7 +293,7 @@ impl Once { /// Blocks the current thread until initialization has completed, ignoring /// poisoning. - #[stable(feature = "once_wait", since = "CURRENT_RUSTC_VERSION")] + #[stable(feature = "once_wait", since = "1.86.0")] pub fn wait_force(&self) { if !self.inner.is_completed() { self.inner.wait(true); From 82ad08ea7fa613012b270789063544b7e9c53320 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 08:51:01 -0800 Subject: [PATCH 079/255] bump stage0 --- src/stage0 | 926 ++++++++++++++++++++++++++--------------------------- 1 file changed, 463 insertions(+), 463 deletions(-) diff --git a/src/stage0 b/src/stage0 index 5c3e3a7cebcc..9d6a08d378d8 100644 --- a/src/stage0 +++ b/src/stage0 @@ 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onur-ozkan Date: Tue, 18 Feb 2025 20:21:50 +0300 Subject: [PATCH 080/255] fix rust-analyzer tests Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/test.rs | 1 + 1 file changed, 1 insertion(+) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index db2f433bfe15..8d53ebdca19e 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -369,6 +369,7 @@ impl Step for RustAnalyzer { let stage = self.stage; let host = self.host; let compiler = builder.compiler(stage, host); + let compiler = tool::get_tool_rustc_compiler(builder, compiler); // We don't need to build the whole Rust Analyzer for the proc-macro-srv test suite, // but we do need the standard library to be present. From 3c45324e678d7148d542f08ced5c666dba2e1d60 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:10:45 -0800 Subject: [PATCH 081/255] update `cfg(bootstrap)` --- compiler/rustc_data_structures/src/flock.rs | 25 --- .../rustc_data_structures/src/profiling.rs | 63 ------ compiler/rustc_lint/src/lib.rs | 1 - compiler/rustc_middle/src/lib.rs | 1 - .../rustc_span/src/analyze_source_file.rs | 126 ------------ library/alloc/src/boxed.rs | 10 - library/core/src/contracts.rs | 1 - library/core/src/intrinsics/mod.rs | 35 +--- library/core/src/lib.rs | 1 - library/core/src/macros/mod.rs | 92 --------- library/core/src/marker.rs | 3 +- library/core/src/panicking.rs | 2 +- library/core/src/range.rs | 6 +- library/coretests/tests/lib.rs | 3 - library/coretests/tests/macros_bootstrap.rs | 193 ------------------ library/panic_unwind/src/lib.rs | 2 +- library/std/src/lib.rs | 2 +- library/unwind/src/lib.rs | 2 +- src/bootstrap/src/core/build_steps/test.rs | 5 +- src/bootstrap/src/core/builder/cargo.rs | 10 +- src/tools/compiletest/src/header/tests.rs | 2 - src/tools/miri/src/lib.rs | 1 - 22 files changed, 17 insertions(+), 569 deletions(-) delete mode 100644 library/coretests/tests/macros_bootstrap.rs diff --git a/compiler/rustc_data_structures/src/flock.rs b/compiler/rustc_data_structures/src/flock.rs index 292a33d56469..d423d8acefd0 100644 --- a/compiler/rustc_data_structures/src/flock.rs +++ b/compiler/rustc_data_structures/src/flock.rs @@ -4,31 +4,6 @@ //! green/native threading. This is just a bare-bones enough solution for //! librustdoc, it is not production quality at all. -#[cfg(bootstrap)] -cfg_match! { - cfg(target_os = "linux") => { - mod linux; - use linux as imp; - } - cfg(target_os = "redox") => { - mod linux; - use linux as imp; - } - cfg(unix) => { - mod unix; - use unix as imp; - } - cfg(windows) => { - mod windows; - use self::windows as imp; - } - _ => { - mod unsupported; - use unsupported as imp; - } -} - -#[cfg(not(bootstrap))] cfg_match! { target_os = "linux" => { mod linux; diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs index 18e98e6c39fa..39db551adfb8 100644 --- a/compiler/rustc_data_structures/src/profiling.rs +++ b/compiler/rustc_data_structures/src/profiling.rs @@ -860,69 +860,6 @@ fn get_thread_id() -> u32 { } // Memory reporting -#[cfg(bootstrap)] -cfg_match! { - cfg(windows) => { - pub fn get_resident_set_size() -> Option { - use std::mem; - - use windows::{ - Win32::System::ProcessStatus::{K32GetProcessMemoryInfo, PROCESS_MEMORY_COUNTERS}, - Win32::System::Threading::GetCurrentProcess, - }; - - let mut pmc = PROCESS_MEMORY_COUNTERS::default(); - let pmc_size = mem::size_of_val(&pmc); - unsafe { - K32GetProcessMemoryInfo( - GetCurrentProcess(), - &mut pmc, - pmc_size as u32, - ) - } - .ok() - .ok()?; - - Some(pmc.WorkingSetSize) - } - } - cfg(target_os = "macos") => { - pub fn get_resident_set_size() -> Option { - use libc::{c_int, c_void, getpid, proc_pidinfo, proc_taskinfo, PROC_PIDTASKINFO}; - use std::mem; - const PROC_TASKINFO_SIZE: c_int = mem::size_of::() as c_int; - - unsafe { - let mut info: proc_taskinfo = mem::zeroed(); - let info_ptr = &mut info as *mut proc_taskinfo as *mut c_void; - let pid = getpid() as c_int; - let ret = proc_pidinfo(pid, PROC_PIDTASKINFO, 0, info_ptr, PROC_TASKINFO_SIZE); - if ret == PROC_TASKINFO_SIZE { - Some(info.pti_resident_size as usize) - } else { - None - } - } - } - } - cfg(unix) => { - pub fn get_resident_set_size() -> Option { - let field = 1; - let contents = fs::read("/proc/self/statm").ok()?; - let contents = String::from_utf8(contents).ok()?; - let s = contents.split_whitespace().nth(field)?; - let npages = s.parse::().ok()?; - Some(npages * 4096) - } - } - _ => { - pub fn get_resident_set_size() -> Option { - None - } - } -} - -#[cfg(not(bootstrap))] cfg_match! { windows => { pub fn get_resident_set_size() -> Option { diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index c8de5e877531..95239d66e768 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -21,7 +21,6 @@ // tidy-alphabetical-start #![allow(internal_features)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] #![doc(rust_logo)] #![feature(array_windows)] diff --git a/compiler/rustc_middle/src/lib.rs b/compiler/rustc_middle/src/lib.rs index 95128a5d903b..93a7227d65ee 100644 --- a/compiler/rustc_middle/src/lib.rs +++ b/compiler/rustc_middle/src/lib.rs @@ -29,7 +29,6 @@ #![allow(rustc::diagnostic_outside_of_impl)] #![allow(rustc::potential_query_instability)] #![allow(rustc::untranslatable_diagnostic)] -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")] #![doc(rust_logo)] #![feature(allocator_api)] diff --git a/compiler/rustc_span/src/analyze_source_file.rs b/compiler/rustc_span/src/analyze_source_file.rs index 47cc16b623d1..a39bb884faad 100644 --- a/compiler/rustc_span/src/analyze_source_file.rs +++ b/compiler/rustc_span/src/analyze_source_file.rs @@ -29,132 +29,6 @@ pub(crate) fn analyze_source_file(src: &str) -> (Vec, Vec { - fn analyze_source_file_dispatch( - src: &str, - lines: &mut Vec, - multi_byte_chars: &mut Vec, - ) { - if is_x86_feature_detected!("sse2") { - unsafe { - analyze_source_file_sse2(src, lines, multi_byte_chars); - } - } else { - analyze_source_file_generic( - src, - src.len(), - RelativeBytePos::from_u32(0), - lines, - multi_byte_chars, - ); - } - } - - /// Checks 16 byte chunks of text at a time. If the chunk contains - /// something other than printable ASCII characters and newlines, the - /// function falls back to the generic implementation. Otherwise it uses - /// SSE2 intrinsics to quickly find all newlines. - #[target_feature(enable = "sse2")] - unsafe fn analyze_source_file_sse2( - src: &str, - lines: &mut Vec, - multi_byte_chars: &mut Vec, - ) { - #[cfg(target_arch = "x86")] - use std::arch::x86::*; - #[cfg(target_arch = "x86_64")] - use std::arch::x86_64::*; - - const CHUNK_SIZE: usize = 16; - - let src_bytes = src.as_bytes(); - - let chunk_count = src.len() / CHUNK_SIZE; - - // This variable keeps track of where we should start decoding a - // chunk. If a multi-byte character spans across chunk boundaries, - // we need to skip that part in the next chunk because we already - // handled it. - let mut intra_chunk_offset = 0; - - for chunk_index in 0..chunk_count { - let ptr = src_bytes.as_ptr() as *const __m128i; - // We don't know if the pointer is aligned to 16 bytes, so we - // use `loadu`, which supports unaligned loading. - let chunk = unsafe { _mm_loadu_si128(ptr.add(chunk_index)) }; - - // For character in the chunk, see if its byte value is < 0, which - // indicates that it's part of a UTF-8 char. - let multibyte_test = unsafe { _mm_cmplt_epi8(chunk, _mm_set1_epi8(0)) }; - // Create a bit mask from the comparison results. - let multibyte_mask = unsafe { _mm_movemask_epi8(multibyte_test) }; - - // If the bit mask is all zero, we only have ASCII chars here: - if multibyte_mask == 0 { - assert!(intra_chunk_offset == 0); - - // Check for newlines in the chunk - let newlines_test = unsafe { _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8)) }; - let mut newlines_mask = unsafe { _mm_movemask_epi8(newlines_test) }; - - let output_offset = RelativeBytePos::from_usize(chunk_index * CHUNK_SIZE + 1); - - while newlines_mask != 0 { - let index = newlines_mask.trailing_zeros(); - - lines.push(RelativeBytePos(index) + output_offset); - - // Clear the bit, so we can find the next one. - newlines_mask &= newlines_mask - 1; - } - } else { - // The slow path. - // There are multibyte chars in here, fallback to generic decoding. - let scan_start = chunk_index * CHUNK_SIZE + intra_chunk_offset; - intra_chunk_offset = analyze_source_file_generic( - &src[scan_start..], - CHUNK_SIZE - intra_chunk_offset, - RelativeBytePos::from_usize(scan_start), - lines, - multi_byte_chars, - ); - } - } - - // There might still be a tail left to analyze - let tail_start = chunk_count * CHUNK_SIZE + intra_chunk_offset; - if tail_start < src.len() { - analyze_source_file_generic( - &src[tail_start..], - src.len() - tail_start, - RelativeBytePos::from_usize(tail_start), - lines, - multi_byte_chars, - ); - } - } - } - _ => { - // The target (or compiler version) does not support SSE2 ... - fn analyze_source_file_dispatch( - src: &str, - lines: &mut Vec, - multi_byte_chars: &mut Vec, - ) { - analyze_source_file_generic( - src, - src.len(), - RelativeBytePos::from_u32(0), - lines, - multi_byte_chars, - ); - } - } -} - -#[cfg(not(bootstrap))] cfg_match! { any(target_arch = "x86", target_arch = "x86_64") => { fn analyze_source_file_dispatch( diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs index 4b124b5a3b38..493a22fcd01a 100644 --- a/library/alloc/src/boxed.rs +++ b/library/alloc/src/boxed.rs @@ -237,7 +237,6 @@ pub struct Box< /// the newly allocated memory. This is an intrinsic to avoid unnecessary copies. /// /// This is the surface syntax for `box ` expressions. -#[cfg(not(bootstrap))] #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[unstable(feature = "liballoc_internals", issue = "none")] @@ -245,15 +244,6 @@ pub fn box_new(_x: T) -> Box { unreachable!() } -/// Transition function for the next bootstrap bump. -#[cfg(bootstrap)] -#[unstable(feature = "liballoc_internals", issue = "none")] -#[inline(always)] -pub fn box_new(x: T) -> Box { - #[rustc_box] - Box::new(x) -} - impl Box { /// Allocates memory on the heap and then places `x` into it. /// diff --git a/library/core/src/contracts.rs b/library/core/src/contracts.rs index c769e219e4d4..8b79a3a7eba8 100644 --- a/library/core/src/contracts.rs +++ b/library/core/src/contracts.rs @@ -1,5 +1,4 @@ //! Unstable module containing the unstable contracts lang items and attribute macros. -#![cfg(not(bootstrap))] pub use crate::macros::builtin::{contracts_ensures as ensures, contracts_requires as requires}; diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 99c42f3626e7..bd39695a8dbb 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -78,11 +78,7 @@ pub mod simd; use crate::sync::atomic::{self, AtomicBool, AtomicI32, AtomicIsize, AtomicU32, Ordering}; #[stable(feature = "drop_in_place", since = "1.8.0")] -#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)] -#[cfg_attr( - not(bootstrap), - rustc_allowed_through_unstable_modules = "import this function via `std::ptr` instead" -)] +#[rustc_allowed_through_unstable_modules = "import this function via `std::ptr` instead"] #[deprecated(note = "no longer an intrinsic - use `ptr::drop_in_place` directly", since = "1.52.0")] #[inline] pub unsafe fn drop_in_place(to_drop: *mut T) { @@ -1901,11 +1897,7 @@ pub const fn forget(_: T) { /// } /// ``` #[stable(feature = "rust1", since = "1.0.0")] -#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)] -#[cfg_attr( - not(bootstrap), - rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead" -)] +#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"] #[rustc_const_stable(feature = "const_transmute", since = "1.56.0")] #[rustc_diagnostic_item = "transmute"] #[rustc_nounwind] @@ -3260,7 +3252,7 @@ pub const fn three_way_compare(_lhs: T, _rhss: T) -> crate::cmp::Orderi /// Otherwise it's immediate UB. #[rustc_const_unstable(feature = "disjoint_bitor", issue = "135758")] #[rustc_nounwind] -#[cfg_attr(not(bootstrap), rustc_intrinsic)] +#[rustc_intrinsic] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces #[miri::intrinsic_fallback_is_spec] // the fallbacks all `assume` to tell Miri pub const unsafe fn disjoint_bitor(a: T, b: T) -> T { @@ -4070,7 +4062,6 @@ pub const unsafe fn const_deallocate(_ptr: *mut u8, _size: usize, _align: usize) /// of not prematurely commiting at compile-time to whether contract /// checking is turned on, so that we can specify contracts in libstd /// and let an end user opt into turning them on. -#[cfg(not(bootstrap))] #[rustc_const_unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)] #[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)] #[inline(always)] @@ -4086,7 +4077,6 @@ pub const fn contract_checks() -> bool { /// /// By default, if `contract_checks` is enabled, this will panic with no unwind if the condition /// returns false. -#[cfg(not(bootstrap))] #[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)] #[lang = "contract_check_requires"] #[rustc_intrinsic] @@ -4101,7 +4091,6 @@ pub fn contract_check_requires bool>(cond: C) { /// /// By default, if `contract_checks` is enabled, this will panic with no unwind if the condition /// returns false. -#[cfg(not(bootstrap))] #[unstable(feature = "contracts_internals", issue = "128044" /* compiler-team#759 */)] #[rustc_intrinsic] pub fn contract_check_ensures<'a, Ret, C: Fn(&'a Ret) -> bool>(ret: &'a Ret, cond: C) { @@ -4400,11 +4389,7 @@ pub const fn ptr_metadata + ?Sized, M>(_ptr: *cons /// [`Vec::append`]: ../../std/vec/struct.Vec.html#method.append #[doc(alias = "memcpy")] #[stable(feature = "rust1", since = "1.0.0")] -#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)] -#[cfg_attr( - not(bootstrap), - rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead" -)] +#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"] #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[inline(always)] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces @@ -4508,11 +4493,7 @@ pub const unsafe fn copy_nonoverlapping(src: *const T, dst: *mut T, count: us /// ``` #[doc(alias = "memmove")] #[stable(feature = "rust1", since = "1.0.0")] -#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)] -#[cfg_attr( - not(bootstrap), - rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead" -)] +#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"] #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[inline(always)] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces @@ -4595,11 +4576,7 @@ pub const unsafe fn copy(src: *const T, dst: *mut T, count: usize) { /// ``` #[doc(alias = "memset")] #[stable(feature = "rust1", since = "1.0.0")] -#[cfg_attr(bootstrap, rustc_allowed_through_unstable_modules)] -#[cfg_attr( - not(bootstrap), - rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead" -)] +#[rustc_allowed_through_unstable_modules = "import this function via `std::mem` instead"] #[rustc_const_stable(feature = "const_ptr_write", since = "1.83.0")] #[inline(always)] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces diff --git a/library/core/src/lib.rs b/library/core/src/lib.rs index 99d5af9f0ef9..db68f472c42f 100644 --- a/library/core/src/lib.rs +++ b/library/core/src/lib.rs @@ -247,7 +247,6 @@ pub mod autodiff { pub use crate::macros::builtin::autodiff; } -#[cfg(not(bootstrap))] #[unstable(feature = "contracts", issue = "128044")] pub mod contracts; diff --git a/library/core/src/macros/mod.rs b/library/core/src/macros/mod.rs index 4c6fd196bd31..16200184422b 100644 --- a/library/core/src/macros/mod.rs +++ b/library/core/src/macros/mod.rs @@ -196,95 +196,6 @@ pub macro assert_matches { }, } -/// A macro for defining `#[cfg]` match-like statements. -/// -/// It is similar to the `if/elif` C preprocessor macro by allowing definition of a cascade of -/// `#[cfg]` cases, emitting the implementation which matches first. -/// -/// This allows you to conveniently provide a long list `#[cfg]`'d blocks of code -/// without having to rewrite each clause multiple times. -/// -/// Trailing `_` wildcard match arms are **optional** and they indicate a fallback branch when -/// all previous declarations do not evaluate to true. -/// -/// # Example -/// -/// ``` -/// #![feature(cfg_match)] -/// -/// cfg_match! { -/// cfg(unix) => { -/// fn foo() { /* unix specific functionality */ } -/// } -/// cfg(target_pointer_width = "32") => { -/// fn foo() { /* non-unix, 32-bit functionality */ } -/// } -/// _ => { -/// fn foo() { /* fallback implementation */ } -/// } -/// } -/// ``` -#[cfg(bootstrap)] -#[unstable(feature = "cfg_match", issue = "115585")] -#[rustc_diagnostic_item = "cfg_match"] -pub macro cfg_match { - // with a final wildcard - ( - $(cfg($initial_meta:meta) => { $($initial_tokens:tt)* })+ - _ => { $($extra_tokens:tt)* } - ) => { - cfg_match! { - @__items (); - $((($initial_meta) ($($initial_tokens)*)),)+ - (() ($($extra_tokens)*)), - } - }, - - // without a final wildcard - ( - $(cfg($extra_meta:meta) => { $($extra_tokens:tt)* })* - ) => { - cfg_match! { - @__items (); - $((($extra_meta) ($($extra_tokens)*)),)* - } - }, - - // Internal and recursive macro to emit all the items - // - // Collects all the previous cfgs in a list at the beginning, so they can be - // negated. After the semicolon is all the remaining items. - (@__items ($($_:meta,)*);) => {}, - ( - @__items ($($no:meta,)*); - (($($yes:meta)?) ($($tokens:tt)*)), - $($rest:tt,)* - ) => { - // Emit all items within one block, applying an appropriate #[cfg]. The - // #[cfg] will require all `$yes` matchers specified and must also negate - // all previous matchers. - #[cfg(all( - $($yes,)? - not(any($($no),*)) - ))] - cfg_match! { @__identity $($tokens)* } - - // Recurse to emit all other items in `$rest`, and when we do so add all - // our `$yes` matchers to the list of `$no` matchers as future emissions - // will have to negate everything we just matched as well. - cfg_match! { - @__items ($($no,)* $($yes,)?); - $($rest,)* - } - }, - - // Internal macro to make __apply work out right for different match types, - // because of how macros match/expand stuff. - (@__identity $($tokens:tt)*) => { - $($tokens)* - } -} - /// A macro for defining `#[cfg]` match-like statements. /// /// It is similar to the `if/elif` C preprocessor macro by allowing definition of a cascade of @@ -324,7 +235,6 @@ pub macro cfg_match { /// _ => { "Behind every successful diet is an unwatched pizza" } /// }}; /// ``` -#[cfg(not(bootstrap))] #[unstable(feature = "cfg_match", issue = "115585")] #[rustc_diagnostic_item = "cfg_match"] pub macro cfg_match { @@ -1782,7 +1692,6 @@ pub(crate) mod builtin { /// The attribute carries an argument token-tree which is /// eventually parsed as a unary closure expression that is /// invoked on a reference to the return value. - #[cfg(not(bootstrap))] #[unstable(feature = "contracts", issue = "128044")] #[allow_internal_unstable(contracts_internals)] #[rustc_builtin_macro] @@ -1795,7 +1704,6 @@ pub(crate) mod builtin { /// The attribute carries an argument token-tree which is /// eventually parsed as an boolean expression with access to the /// function's formal parameters - #[cfg(not(bootstrap))] #[unstable(feature = "contracts", issue = "128044")] #[allow_internal_unstable(contracts_internals)] #[rustc_builtin_macro] diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs index 042ee419d57e..842a48e1606d 100644 --- a/library/core/src/marker.rs +++ b/library/core/src/marker.rs @@ -467,7 +467,7 @@ impl Copy for &T {} /// /// Bikeshed name for now. #[unstable(feature = "bikeshed_guaranteed_no_drop", issue = "none")] -#[cfg_attr(not(bootstrap), lang = "bikeshed_guaranteed_no_drop")] +#[lang = "bikeshed_guaranteed_no_drop"] pub trait BikeshedGuaranteedNoDrop {} /// Types for which it is safe to share references between threads. @@ -1313,7 +1313,6 @@ pub macro CoercePointee($item:item) { /// /// This trait is not intended to be implemented by users or used other than /// validation, so it should never be stabilized. -#[cfg(not(bootstrap))] #[lang = "coerce_pointee_validated"] #[unstable(feature = "coerce_pointee_validated", issue = "none")] #[doc(hidden)] diff --git a/library/core/src/panicking.rs b/library/core/src/panicking.rs index d36e677d21a1..33ad59916e39 100644 --- a/library/core/src/panicking.rs +++ b/library/core/src/panicking.rs @@ -294,7 +294,7 @@ fn panic_misaligned_pointer_dereference(required: usize, found: usize) -> ! { #[cfg_attr(not(feature = "panic_immediate_abort"), inline(never), cold, optimize(size))] #[cfg_attr(feature = "panic_immediate_abort", inline)] #[track_caller] -#[cfg_attr(not(bootstrap), lang = "panic_null_pointer_dereference")] // needed by codegen for panic on null pointer deref +#[lang = "panic_null_pointer_dereference"] // needed by codegen for panic on null pointer deref #[rustc_nounwind] // `CheckNull` MIR pass requires this function to never unwind fn panic_null_pointer_dereference() -> ! { if cfg!(feature = "panic_immediate_abort") { diff --git a/library/core/src/range.rs b/library/core/src/range.rs index e94499065ac9..2276112a27bb 100644 --- a/library/core/src/range.rs +++ b/library/core/src/range.rs @@ -50,7 +50,7 @@ pub use crate::ops::{ /// assert_eq!(Range::from(3..5), Range { start: 3, end: 5 }); /// assert_eq!(3 + 4 + 5, Range::from(3..6).into_iter().sum()); /// ``` -#[cfg_attr(not(bootstrap), lang = "RangeCopy")] +#[lang = "RangeCopy"] #[derive(Clone, Copy, Default, PartialEq, Eq, Hash)] #[unstable(feature = "new_range_api", issue = "125687")] pub struct Range { @@ -216,7 +216,7 @@ impl From> for Range { /// assert_eq!(RangeInclusive::from(3..=5), RangeInclusive { start: 3, end: 5 }); /// assert_eq!(3 + 4 + 5, RangeInclusive::from(3..=5).into_iter().sum()); /// ``` -#[cfg_attr(not(bootstrap), lang = "RangeInclusiveCopy")] +#[lang = "RangeInclusiveCopy"] #[derive(Clone, Copy, PartialEq, Eq, Hash)] #[unstable(feature = "new_range_api", issue = "125687")] pub struct RangeInclusive { @@ -408,7 +408,7 @@ impl From> for RangeInclusive { /// assert_eq!(RangeFrom::from(2..), core::range::RangeFrom { start: 2 }); /// assert_eq!(2 + 3 + 4, RangeFrom::from(2..).into_iter().take(3).sum()); /// ``` -#[cfg_attr(not(bootstrap), lang = "RangeFromCopy")] +#[lang = "RangeFromCopy"] #[derive(Clone, Copy, PartialEq, Eq, Hash)] #[unstable(feature = "new_range_api", issue = "125687")] pub struct RangeFrom { diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index 1e1ff29e1615..9be0b6fbf272 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -153,10 +153,7 @@ mod intrinsics; mod io; mod iter; mod lazy; -#[cfg(not(bootstrap))] mod macros; -#[cfg(bootstrap)] -mod macros_bootstrap; mod manually_drop; mod mem; mod net; diff --git a/library/coretests/tests/macros_bootstrap.rs b/library/coretests/tests/macros_bootstrap.rs deleted file mode 100644 index f10ef862c5dd..000000000000 --- a/library/coretests/tests/macros_bootstrap.rs +++ /dev/null @@ -1,193 +0,0 @@ -#![allow(unused_must_use)] - -#[allow(dead_code)] -trait Trait { - fn blah(&self); -} - -#[allow(dead_code)] -struct Struct; - -impl Trait for Struct { - cfg_match! { - cfg(feature = "blah") => { - fn blah(&self) { - unimplemented!(); - } - } - _ => { - fn blah(&self) { - unimplemented!(); - } - } - } -} - -#[test] -fn assert_eq_trailing_comma() { - assert_eq!(1, 1,); -} - -#[test] -fn assert_escape() { - assert!(r#"☃\backslash"#.contains("\\")); -} - -#[test] -fn assert_ne_trailing_comma() { - assert_ne!(1, 2,); -} - -#[rustfmt::skip] -#[test] -fn matches_leading_pipe() { - matches!(1, | 1 | 2 | 3); -} - -#[test] -fn cfg_match_basic() { - cfg_match! { - cfg(target_pointer_width = "64") => { fn f0_() -> bool { true }} - } - - cfg_match! { - cfg(unix) => { fn f1_() -> bool { true }} - cfg(any(target_os = "macos", target_os = "linux")) => { fn f1_() -> bool { false }} - } - - cfg_match! { - cfg(target_pointer_width = "32") => { fn f2_() -> bool { false }} - cfg(target_pointer_width = "64") => { fn f2_() -> bool { true }} - } - - cfg_match! { - cfg(target_pointer_width = "16") => { fn f3_() -> i32 { 1 }} - _ => { fn f3_() -> i32 { 2 }} - } - - #[cfg(target_pointer_width = "64")] - assert!(f0_()); - - #[cfg(unix)] - assert!(f1_()); - - #[cfg(target_pointer_width = "32")] - assert!(!f2_()); - #[cfg(target_pointer_width = "64")] - assert!(f2_()); - - #[cfg(not(target_pointer_width = "16"))] - assert_eq!(f3_(), 2); -} - -#[test] -fn cfg_match_debug_assertions() { - cfg_match! { - cfg(debug_assertions) => { - assert!(cfg!(debug_assertions)); - assert_eq!(4, 2+2); - } - _ => { - assert!(cfg!(not(debug_assertions))); - assert_eq!(10, 5+5); - } - } -} - -#[cfg(target_pointer_width = "64")] -#[test] -fn cfg_match_no_duplication_on_64() { - cfg_match! { - cfg(windows) => { - fn foo() {} - } - cfg(unix) => { - fn foo() {} - } - cfg(target_pointer_width = "64") => { - fn foo() {} - } - } - foo(); -} - -#[test] -fn cfg_match_options() { - cfg_match! { - cfg(test) => { - use core::option::Option as Option2; - fn works1() -> Option2 { Some(1) } - } - _ => { fn works1() -> Option { None } } - } - - cfg_match! { - cfg(feature = "foo") => { fn works2() -> bool { false } } - cfg(test) => { fn works2() -> bool { true } } - _ => { fn works2() -> bool { false } } - } - - cfg_match! { - cfg(feature = "foo") => { fn works3() -> bool { false } } - _ => { fn works3() -> bool { true } } - } - - cfg_match! { - cfg(test) => { - use core::option::Option as Option3; - fn works4() -> Option3 { Some(1) } - } - } - - cfg_match! { - cfg(feature = "foo") => { fn works5() -> bool { false } } - cfg(test) => { fn works5() -> bool { true } } - } - - assert!(works1().is_some()); - assert!(works2()); - assert!(works3()); - assert!(works4().is_some()); - assert!(works5()); -} - -#[test] -fn cfg_match_two_functions() { - cfg_match! { - cfg(target_pointer_width = "64") => { - fn foo1() {} - fn bar1() {} - } - _ => { - fn foo2() {} - fn bar2() {} - } - } - - #[cfg(target_pointer_width = "64")] - { - foo1(); - bar1(); - } - #[cfg(not(target_pointer_width = "64"))] - { - foo2(); - bar2(); - } -} - -fn _accepts_expressions() -> i32 { - cfg_match! { - cfg(unix) => { 1 } - _ => { 2 } - } -} - -fn _allows_stmt_expr_attributes() { - let one = 1; - let two = 2; - cfg_match! { - cfg(unix) => { one * two; } - _ => { one + two; } - } -} diff --git a/library/panic_unwind/src/lib.rs b/library/panic_unwind/src/lib.rs index 1111c2009b3d..a284633ea2fc 100644 --- a/library/panic_unwind/src/lib.rs +++ b/library/panic_unwind/src/lib.rs @@ -14,6 +14,7 @@ #![no_std] #![unstable(feature = "panic_unwind", issue = "32837")] #![doc(issue_tracker_base_url = "https://github.com/rust-lang/rust/issues/")] +#![feature(cfg_emscripten_wasm_eh)] #![feature(core_intrinsics)] #![feature(lang_items)] #![feature(panic_unwind)] @@ -25,7 +26,6 @@ // `real_imp` is unused with Miri, so silence warnings. #![cfg_attr(miri, allow(dead_code))] #![allow(internal_features)] -#![cfg_attr(not(bootstrap), feature(cfg_emscripten_wasm_eh))] #![warn(unreachable_pub)] #![deny(unsafe_op_in_unsafe_fn)] diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 750116c6269d..9d441257517d 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -274,7 +274,6 @@ // tidy-alphabetical-start // stabilization was reverted after it hit beta -#![cfg_attr(not(bootstrap), feature(extended_varargs_abi_support))] #![feature(alloc_error_handler)] #![feature(allocator_internals)] #![feature(allow_internal_unsafe)] @@ -292,6 +291,7 @@ #![feature(doc_masked)] #![feature(doc_notable_trait)] #![feature(dropck_eyepatch)] +#![feature(extended_varargs_abi_support)] #![feature(f128)] #![feature(f16)] #![feature(formatting_options)] diff --git a/library/unwind/src/lib.rs b/library/unwind/src/lib.rs index 761f92484462..5451a38a674c 100644 --- a/library/unwind/src/lib.rs +++ b/library/unwind/src/lib.rs @@ -1,5 +1,6 @@ #![no_std] #![unstable(feature = "panic_unwind", issue = "32837")] +#![feature(cfg_emscripten_wasm_eh)] #![feature(link_cfg)] #![feature(staged_api)] #![cfg_attr(not(target_env = "msvc"), feature(libc))] @@ -8,7 +9,6 @@ feature(simd_wasm64, wasm_exception_handling_intrinsics) )] #![allow(internal_features)] -#![cfg_attr(not(bootstrap), feature(cfg_emscripten_wasm_eh))] #![deny(unsafe_op_in_unsafe_fn)] // Force libc to be included even if unused. This is required by many platforms. diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index b3f4a7bad99c..d40f4ee8e718 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1847,10 +1847,7 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the } // FIXME(136096): on macOS, we get linker warnings about duplicate `-lm` flags. - // NOTE: `stage > 1` here because `test --stage 1 ui-fulldeps` is a hack that compiles - // with stage 0, but links the tests against stage 1. - // cfg(bootstrap) - remove only the `stage > 1` check, leave everything else. - if suite == "ui-fulldeps" && compiler.stage > 1 && target.ends_with("darwin") { + if suite == "ui-fulldeps" && target.ends_with("darwin") { flags.push("-Alinker_messages".into()); } diff --git a/src/bootstrap/src/core/builder/cargo.rs b/src/bootstrap/src/core/builder/cargo.rs index 1ec3e601cad1..f08d229c76d5 100644 --- a/src/bootstrap/src/core/builder/cargo.rs +++ b/src/bootstrap/src/core/builder/cargo.rs @@ -285,10 +285,7 @@ impl Cargo { // Ignore linker warnings for now. These are complicated to fix and don't affect the build. // FIXME: we should really investigate these... - // cfg(bootstrap) - if compiler.stage != 0 { - self.rustflags.arg("-Alinker-messages"); - } + self.rustflags.arg("-Alinker-messages"); // Throughout the build Cargo can execute a number of build scripts // compiling C/C++ code and we need to pass compilers, archivers, flags, etc @@ -1071,10 +1068,7 @@ impl Builder<'_> { if mode == Mode::Rustc { rustflags.arg("-Wrustc::internal"); - // cfg(bootstrap) - remove this check when lint is in bootstrap compiler - if stage != 0 { - rustflags.arg("-Drustc::symbol_intern_string_literal"); - } + rustflags.arg("-Drustc::symbol_intern_string_literal"); // FIXME(edition_2024): Change this to `-Wrust_2024_idioms` when all // of the individual lints are satisfied. rustflags.arg("-Wkeyword_idents_2024"); diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs index 55292c46bba9..20e7859853fc 100644 --- a/src/tools/compiletest/src/header/tests.rs +++ b/src/tools/compiletest/src/header/tests.rs @@ -891,8 +891,6 @@ fn test_needs_target_has_atomic() { } #[test] -// FIXME: this test will fail against stage 0 until #137037 changes reach beta. -#[cfg_attr(bootstrap, ignore)] fn test_rustc_abi() { let config = cfg().target("i686-unknown-linux-gnu").build(); assert_eq!(config.target_cfg().rustc_abi, Some("x86-sse2".to_string())); diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 44e4f1a29321..75429220bad3 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -1,4 +1,3 @@ -#![cfg_attr(bootstrap, feature(trait_upcasting))] #![feature(rustc_private)] #![feature(cell_update)] #![feature(float_gamma)] From 5a8923768043b58aafa2977de057f5308617a4c8 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:12:05 -0800 Subject: [PATCH 082/255] update `STAGE0_MISSING_TARGETS` --- src/bootstrap/src/core/sanity.rs | 4 ---- 1 file changed, 4 deletions(-) diff --git a/src/bootstrap/src/core/sanity.rs b/src/bootstrap/src/core/sanity.rs index 241b7386d18c..fdac7f3cb179 100644 --- a/src/bootstrap/src/core/sanity.rs +++ b/src/bootstrap/src/core/sanity.rs @@ -34,10 +34,6 @@ pub struct Finder { // Targets can be removed from this list once they are present in the stage0 compiler (usually by updating the beta compiler of the bootstrap). const STAGE0_MISSING_TARGETS: &[&str] = &[ // just a dummy comment so the list doesn't get onelined - "aarch64-unknown-nto-qnx710_iosock", - "x86_64-pc-nto-qnx710_iosock", - "x86_64-pc-nto-qnx800", - "aarch64-unknown-nto-qnx800", ]; /// Minimum version threshold for libstdc++ required when using prebuilt LLVM From 587012b85a019b169a8808112ff978b2a030d2d5 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:16:18 -0800 Subject: [PATCH 083/255] fix `clippy::unneeded-struct-pattern` --- src/bootstrap/src/core/build_steps/check.rs | 2 +- src/bootstrap/src/core/config/config.rs | 16 ++++++++-------- src/bootstrap/src/core/config/flags.rs | 8 ++++---- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/check.rs b/src/bootstrap/src/core/build_steps/check.rs index 21afb0312033..b8bbe1eb5f8a 100644 --- a/src/bootstrap/src/core/build_steps/check.rs +++ b/src/bootstrap/src/core/build_steps/check.rs @@ -69,7 +69,7 @@ impl Step for Std { ); std_cargo(builder, target, compiler.stage, &mut cargo); - if matches!(builder.config.cmd, Subcommand::Fix { .. }) { + if matches!(builder.config.cmd, Subcommand::Fix) { // By default, cargo tries to fix all targets. Tell it not to fix tests until we've added `test` to the sysroot. cargo.arg("--lib"); } diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index 64a510240f83..9a539e895576 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -2330,21 +2330,21 @@ impl Config { Subcommand::Doc { .. } => { flags.stage.or(doc_stage).unwrap_or(if download_rustc { 2 } else { 0 }) } - Subcommand::Build { .. } => { + Subcommand::Build => { flags.stage.or(build_stage).unwrap_or(if download_rustc { 2 } else { 1 }) } Subcommand::Test { .. } | Subcommand::Miri { .. } => { flags.stage.or(test_stage).unwrap_or(if download_rustc { 2 } else { 1 }) } Subcommand::Bench { .. } => flags.stage.or(bench_stage).unwrap_or(2), - Subcommand::Dist { .. } => flags.stage.or(dist_stage).unwrap_or(2), - Subcommand::Install { .. } => flags.stage.or(install_stage).unwrap_or(2), + Subcommand::Dist => flags.stage.or(dist_stage).unwrap_or(2), + Subcommand::Install => flags.stage.or(install_stage).unwrap_or(2), Subcommand::Perf { .. } => flags.stage.unwrap_or(1), // These are all bootstrap tools, which don't depend on the compiler. // The stage we pass shouldn't matter, but use 0 just in case. Subcommand::Clean { .. } | Subcommand::Clippy { .. } - | Subcommand::Fix { .. } + | Subcommand::Fix | Subcommand::Run { .. } | Subcommand::Setup { .. } | Subcommand::Format { .. } @@ -2359,10 +2359,10 @@ impl Config { Subcommand::Test { .. } | Subcommand::Miri { .. } | Subcommand::Doc { .. } - | Subcommand::Build { .. } + | Subcommand::Build | Subcommand::Bench { .. } - | Subcommand::Dist { .. } - | Subcommand::Install { .. } => { + | Subcommand::Dist + | Subcommand::Install => { assert_eq!( config.stage, 2, "x.py should be run with `--stage 2` on CI, but was run with `--stage {}`", @@ -2372,7 +2372,7 @@ impl Config { Subcommand::Clean { .. } | Subcommand::Check { .. } | Subcommand::Clippy { .. } - | Subcommand::Fix { .. } + | Subcommand::Fix | Subcommand::Run { .. } | Subcommand::Setup { .. } | Subcommand::Format { .. } diff --git a/src/bootstrap/src/core/config/flags.rs b/src/bootstrap/src/core/config/flags.rs index c08a041ebcd3..3bb62bbe3808 100644 --- a/src/bootstrap/src/core/config/flags.rs +++ b/src/bootstrap/src/core/config/flags.rs @@ -490,17 +490,17 @@ impl Subcommand { pub fn kind(&self) -> Kind { match self { Subcommand::Bench { .. } => Kind::Bench, - Subcommand::Build { .. } => Kind::Build, + Subcommand::Build => Kind::Build, Subcommand::Check { .. } => Kind::Check, Subcommand::Clippy { .. } => Kind::Clippy, Subcommand::Doc { .. } => Kind::Doc, - Subcommand::Fix { .. } => Kind::Fix, + Subcommand::Fix => Kind::Fix, Subcommand::Format { .. } => Kind::Format, Subcommand::Test { .. } => Kind::Test, Subcommand::Miri { .. } => Kind::Miri, Subcommand::Clean { .. } => Kind::Clean, - Subcommand::Dist { .. } => Kind::Dist, - Subcommand::Install { .. } => Kind::Install, + Subcommand::Dist => Kind::Dist, + Subcommand::Install => Kind::Install, Subcommand::Run { .. } => Kind::Run, Subcommand::Setup { .. } => Kind::Setup, Subcommand::Suggest { .. } => Kind::Suggest, From 0b7d8ab4c2ad07bc821e11f627db28d96e776f26 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:18:50 -0800 Subject: [PATCH 084/255] fix `clippy::double-ended-iterator-last` --- src/bootstrap/src/core/build_steps/test.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index d40f4ee8e718..824dd5964161 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -3619,7 +3619,7 @@ impl Step for TestFloatParse { let bootstrap_host = builder.config.build; let compiler = builder.compiler(builder.top_stage, bootstrap_host); let path = self.path.to_str().unwrap(); - let crate_name = self.path.components().last().unwrap().as_os_str().to_str().unwrap(); + let crate_name = self.path.iter().next_back().unwrap().to_str().unwrap(); builder.ensure(tool::TestFloatParse { host: self.host }); From 9b08f0eebb5d1f16069895bdb3c506c5078d17a5 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:19:33 -0800 Subject: [PATCH 085/255] fix `clippy::doc-overindented-list-items` --- src/bootstrap/src/core/build_steps/toolstate.rs | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/toolstate.rs b/src/bootstrap/src/core/build_steps/toolstate.rs index 668133f05cb3..a65623de95a3 100644 --- a/src/bootstrap/src/core/build_steps/toolstate.rs +++ b/src/bootstrap/src/core/build_steps/toolstate.rs @@ -354,12 +354,12 @@ fn read_old_toolstate() -> Vec { /// 1. Generate a new Personal access token: /// /// * Login to the bot account, and go to Settings -> Developer settings -> -/// Personal access tokens +/// Personal access tokens /// * Click "Generate new token" /// * Enable the "public_repo" permission, then click "Generate token" /// * Copy the generated token (should be a 40-digit hexadecimal number). -/// Save it somewhere secure, as the token would be gone once you leave -/// the page. +/// Save it somewhere secure, as the token would be gone once you leave +/// the page. /// /// 2. Update the variable group in Azure Pipelines /// @@ -368,7 +368,7 @@ fn read_old_toolstate() -> Vec { /// 4. Replace the email address below if the bot account identity is changed /// /// * See -/// if a private email by GitHub is wanted. +/// if a private email by GitHub is wanted. fn commit_toolstate_change(builder: &Builder<'_>, current_toolstate: &ToolstateData) { let message = format!("({} CI update)", OS.expect("linux/windows only")); let mut success = false; From fa7a188e85f54ac69607bce89d663a8443b9efe6 Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 09:20:11 -0800 Subject: [PATCH 086/255] fix `clippy::len-zero` --- src/bootstrap/src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index dfaf0418d9a2..7e0346a8edc1 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -633,7 +633,7 @@ impl Build { // Check for postponed failures from `test --no-fail-fast`. let failures = self.delayed_failures.borrow(); - if failures.len() > 0 { + if !failures.is_empty() { eprintln!("\n{} command(s) did not execute successfully:\n", failures.len()); for failure in failures.iter() { eprintln!(" - {failure}\n"); From 6eb48824dac44b466ca03fe67760a63d8a45d1dc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Tue, 18 Feb 2025 17:34:16 +0000 Subject: [PATCH 087/255] Don't mention `FromResidual` on bad `?` Unless `try_trait_v2` is enabled, don't mention that `FromResidual` isn't implemented for a specific type when the implicit `From` conversion of a `?` fails. For the end user on stable, `?` might as well be a compiler intrinsic, so we remove that note to avoid further confusion and allowing other parts of the error to be more prominent. ``` error[E0277]: `?` couldn't convert the error to `u8` --> $DIR/bad-interconversion.rs:4:20 | LL | fn result_to_result() -> Result { | --------------- expected `u8` because of this LL | Ok(Err(123_i32)?) | ------------^ the trait `From` is not implemented for `u8` | | | this can't be annotated with `?` because it has type `Result<_, i32>` | = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = help: the following other types implement trait `From`: `u8` implements `From` `u8` implements `From` ``` --- .../src/error_reporting/traits/suggestions.rs | 8 ++++++++ tests/ui/traits/question-mark-result-err-mismatch.rs | 1 + tests/ui/traits/question-mark-result-err-mismatch.stderr | 6 +++--- tests/ui/try-block/try-block-bad-type.stderr | 1 - tests/ui/try-trait/bad-interconversion.stderr | 1 - tests/ui/try-trait/issue-32709.stderr | 1 - 6 files changed, 12 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index 527d2e54e432..94d652a0e98f 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -3293,6 +3293,14 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let mut parent_trait_pred = self.resolve_vars_if_possible(data.derived.parent_trait_pred); let parent_def_id = parent_trait_pred.def_id(); + if tcx.is_diagnostic_item(sym::FromResidual, parent_def_id) + && !tcx.features().enabled(sym::try_trait_v2) + { + // If `#![feature(try_trait_v2)]` is not enabled, then there's no point on + // talking about `FromResidual>`, as the end user has nothing they + // can do about it. As far as they are concerned, `?` is compiler magic. + return; + } let self_ty_str = tcx.short_string(parent_trait_pred.skip_binder().self_ty(), err.long_ty_path()); let trait_name = parent_trait_pred.print_modifiers_and_trait_path().to_string(); diff --git a/tests/ui/traits/question-mark-result-err-mismatch.rs b/tests/ui/traits/question-mark-result-err-mismatch.rs index 0ca18b5b0ddc..df1d5105a34a 100644 --- a/tests/ui/traits/question-mark-result-err-mismatch.rs +++ b/tests/ui/traits/question-mark-result-err-mismatch.rs @@ -1,3 +1,4 @@ +#![feature(try_trait_v2)] fn foo() -> Result { //~ NOTE expected `String` because of this let test = String::from("one,two"); let x = test diff --git a/tests/ui/traits/question-mark-result-err-mismatch.stderr b/tests/ui/traits/question-mark-result-err-mismatch.stderr index bad325a67204..0f83c9e73a31 100644 --- a/tests/ui/traits/question-mark-result-err-mismatch.stderr +++ b/tests/ui/traits/question-mark-result-err-mismatch.stderr @@ -1,5 +1,5 @@ error[E0277]: `?` couldn't convert the error to `String` - --> $DIR/question-mark-result-err-mismatch.rs:14:22 + --> $DIR/question-mark-result-err-mismatch.rs:15:22 | LL | fn foo() -> Result { | ---------------------- expected `String` because of this @@ -17,7 +17,7 @@ LL | .map(|()| "")?; = note: required for `Result` to implement `FromResidual>` error[E0277]: `?` couldn't convert the error to `String` - --> $DIR/question-mark-result-err-mismatch.rs:28:25 + --> $DIR/question-mark-result-err-mismatch.rs:29:25 | LL | fn bar() -> Result<(), String> { | ------------------ expected `String` because of this @@ -40,7 +40,7 @@ LL | .map_err(|_| ())?; = note: required for `Result<(), String>` to implement `FromResidual>` error[E0277]: `?` couldn't convert the error to `String` - --> $DIR/question-mark-result-err-mismatch.rs:48:11 + --> $DIR/question-mark-result-err-mismatch.rs:49:11 | LL | fn baz() -> Result { | ---------------------- expected `String` because of this diff --git a/tests/ui/try-block/try-block-bad-type.stderr b/tests/ui/try-block/try-block-bad-type.stderr index c67ad762a83b..818ab499306f 100644 --- a/tests/ui/try-block/try-block-bad-type.stderr +++ b/tests/ui/try-block/try-block-bad-type.stderr @@ -10,7 +10,6 @@ LL | Err("")?; = help: the trait `From<&str>` is not implemented for `TryFromSliceError` but trait `From` is implemented for it = help: for that trait implementation, expected `Infallible`, found `&str` - = note: required for `Result` to implement `FromResidual>` error[E0271]: type mismatch resolving ` as Try>::Output == &str` --> $DIR/try-block-bad-type.rs:12:9 diff --git a/tests/ui/try-trait/bad-interconversion.stderr b/tests/ui/try-trait/bad-interconversion.stderr index bb5e5646ad29..45422be946e8 100644 --- a/tests/ui/try-trait/bad-interconversion.stderr +++ b/tests/ui/try-trait/bad-interconversion.stderr @@ -12,7 +12,6 @@ LL | Ok(Err(123_i32)?) = help: the following other types implement trait `From`: `u8` implements `From` `u8` implements `From` - = note: required for `Result` to implement `FromResidual>` error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a function that returns `Result` --> $DIR/bad-interconversion.rs:9:12 diff --git a/tests/ui/try-trait/issue-32709.stderr b/tests/ui/try-trait/issue-32709.stderr index 475bd1ff3ac5..20454e12de55 100644 --- a/tests/ui/try-trait/issue-32709.stderr +++ b/tests/ui/try-trait/issue-32709.stderr @@ -19,7 +19,6 @@ LL | Err(5)?; `(T, T, T, T, T, T, T, T)` implements `From<[T; 8]>` `(T, T, T, T, T, T, T, T, T)` implements `From<[T; 9]>` and 4 others - = note: required for `Result` to implement `FromResidual>` error: aborting due to 1 previous error From e61cac20c88f545891fdd2c0a2482b4ca4e0ecaf Mon Sep 17 00:00:00 2001 From: Josh Stone Date: Tue, 18 Feb 2025 10:22:46 -0800 Subject: [PATCH 088/255] Remove outdated target `unexpected_cfgs` --- library/core/Cargo.toml | 1 - library/std/Cargo.toml | 2 -- 2 files changed, 3 deletions(-) diff --git a/library/core/Cargo.toml b/library/core/Cargo.toml index b7c6db6c78dd..ed0433480c78 100644 --- a/library/core/Cargo.toml +++ b/library/core/Cargo.toml @@ -30,7 +30,6 @@ check-cfg = [ 'cfg(bootstrap)', 'cfg(no_fp_fmt_parse)', 'cfg(stdarch_intel_sde)', - 'cfg(target_arch, values("xtensa"))', # core use #[path] imports to portable-simd `core_simd` crate # and to stdarch `core_arch` crate which messes-up with Cargo list # of declared features, we therefor expect any feature cfg diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 36a0a59d939f..888fff80f42f 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -152,8 +152,6 @@ test = true level = "warn" check-cfg = [ 'cfg(bootstrap)', - 'cfg(target_arch, values("xtensa", "aarch64-unknown-nto-qnx710_iosock", "x86_64-pc-nto-qnx710_iosock", "x86_64-pc-nto-qnx800","aarch64-unknown-nto-qnx800"))', - 'cfg(target_env, values("nto71_iosock", "nto80"))', # std use #[path] imports to portable-simd `std_float` crate # and to the `backtrace` crate which messes-up with Cargo list # of declared features, we therefor expect any feature cfg From fe37adab4b378d68eda8a8893339606d7f381465 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Thu, 30 Jan 2025 16:28:00 -0600 Subject: [PATCH 089/255] Suggest using :: instead of . in more cases. When `Foo.field` or `Foo.method()` exprs are encountered, suggest `Foo::field` or `Foo::method()` when Foo is a type alias, not just a struct, trait, or module. Also rename test for this suggestion from issue-22692.rs to something more meaningful. --- .../rustc_resolve/src/late/diagnostics.rs | 16 +++--- src/tools/tidy/src/issues.txt | 1 - ...tation-type-namespace-suggest-path-sep.rs} | 20 ++++++++ ...on-type-namespace-suggest-path-sep.stderr} | 51 +++++++++++++++---- 4 files changed, 69 insertions(+), 19 deletions(-) rename tests/ui/resolve/{issue-22692.rs => dot-notation-type-namespace-suggest-path-sep.rs} (77%) rename tests/ui/resolve/{issue-22692.stderr => dot-notation-type-namespace-suggest-path-sep.stderr} (68%) diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 0962865e7f19..524915b44e78 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -1566,7 +1566,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } }; - let mut bad_struct_syntax_suggestion = |this: &mut Self, def_id: DefId| { + let bad_struct_syntax_suggestion = |this: &mut Self, err: &mut Diag<'_>, def_id: DefId| { let (followed_by_brace, closing_brace) = this.followed_by_brace(span); match source { @@ -1740,12 +1740,10 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } } ( - Res::Def(kind @ (DefKind::Mod | DefKind::Trait), _), + Res::Def(kind @ (DefKind::Mod | DefKind::Trait | DefKind::TyAlias), _), PathSource::Expr(Some(parent)), - ) => { - if !path_sep(self, err, parent, kind) { - return false; - } + ) if path_sep(self, err, parent, kind) => { + return true; } ( Res::Def(DefKind::Enum, def_id), @@ -1777,13 +1775,13 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { let (ctor_def, ctor_vis, fields) = if let Some(struct_ctor) = struct_ctor { if let PathSource::Expr(Some(parent)) = source { if let ExprKind::Field(..) | ExprKind::MethodCall(..) = parent.kind { - bad_struct_syntax_suggestion(self, def_id); + bad_struct_syntax_suggestion(self, err, def_id); return true; } } struct_ctor } else { - bad_struct_syntax_suggestion(self, def_id); + bad_struct_syntax_suggestion(self, err, def_id); return true; }; @@ -1861,7 +1859,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { err.span_label(span, "constructor is not visible here due to private fields"); } (Res::Def(DefKind::Union | DefKind::Variant, def_id), _) if ns == ValueNS => { - bad_struct_syntax_suggestion(self, def_id); + bad_struct_syntax_suggestion(self, err, def_id); } (Res::Def(DefKind::Ctor(_, CtorKind::Const), def_id), _) if ns == ValueNS => { match source { diff --git a/src/tools/tidy/src/issues.txt b/src/tools/tidy/src/issues.txt index 39c9a148e9e5..1cb47353469f 100644 --- a/src/tools/tidy/src/issues.txt +++ b/src/tools/tidy/src/issues.txt @@ -3619,7 +3619,6 @@ ui/resolve/issue-21221-1.rs ui/resolve/issue-21221-2.rs ui/resolve/issue-21221-3.rs ui/resolve/issue-21221-4.rs -ui/resolve/issue-22692.rs ui/resolve/issue-2330.rs ui/resolve/issue-23305.rs ui/resolve/issue-2356.rs diff --git a/tests/ui/resolve/issue-22692.rs b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs similarity index 77% rename from tests/ui/resolve/issue-22692.rs rename to tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs index 31a76261408e..104d11f685cc 100644 --- a/tests/ui/resolve/issue-22692.rs +++ b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs @@ -1,3 +1,11 @@ +// see also https://github.com/rust-lang/rust/issues/22692 + +type Alias = Vec; + +mod foo { + fn bar() {} +} + fn main() { let _ = String.new(); //~^ ERROR expected value, found struct `String` @@ -10,6 +18,18 @@ fn main() { let _ = Vec::<()>.with_capacity(1); //~^ ERROR expected value, found struct `Vec` //~| HELP use the path separator + + let _ = Alias.new(); + //~^ ERROR expected value, found type alias `Alias` + //~| HELP use the path separator + + let _ = Alias.default; + //~^ ERROR expected value, found type alias `Alias` + //~| HELP use the path separator + + let _ = foo.bar; + //~^ ERROR expected value, found module `foo` + //~| HELP use the path separator } macro_rules! Type { diff --git a/tests/ui/resolve/issue-22692.stderr b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr similarity index 68% rename from tests/ui/resolve/issue-22692.stderr rename to tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr index 546f12b35c15..a5397306b01e 100644 --- a/tests/ui/resolve/issue-22692.stderr +++ b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr @@ -1,5 +1,5 @@ error[E0423]: expected value, found struct `String` - --> $DIR/issue-22692.rs:2:13 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:10:13 | LL | let _ = String.new(); | ^^^^^^ @@ -11,7 +11,7 @@ LL + let _ = String::new(); | error[E0423]: expected value, found struct `String` - --> $DIR/issue-22692.rs:6:13 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:14:13 | LL | let _ = String.default; | ^^^^^^ @@ -23,7 +23,7 @@ LL + let _ = String::default; | error[E0423]: expected value, found struct `Vec` - --> $DIR/issue-22692.rs:10:13 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:18:13 | LL | let _ = Vec::<()>.with_capacity(1); | ^^^^^^^^^ @@ -34,8 +34,41 @@ LL - let _ = Vec::<()>.with_capacity(1); LL + let _ = Vec::<()>::with_capacity(1); | +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:22:13 + | +LL | let _ = Alias.new(); + | ^^^^^ + | +help: use the path separator to refer to an item + | +LL | let _ = Alias::new(); + | ~~ + +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:26:13 + | +LL | let _ = Alias.default; + | ^^^^^ + | +help: use the path separator to refer to an item + | +LL | let _ = Alias::default; + | ~~ + +error[E0423]: expected value, found module `foo` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:30:13 + | +LL | let _ = foo.bar; + | ^^^ + | +help: use the path separator to refer to an item + | +LL | let _ = foo::bar; + | ~~ + error[E0423]: expected value, found struct `std::cell::Cell` - --> $DIR/issue-22692.rs:17:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:37:9 | LL | ::std::cell::Cell | ^^^^^^^^^^^^^^^^^ @@ -51,7 +84,7 @@ LL + ::get(); | error[E0423]: expected value, found struct `std::cell::Cell` - --> $DIR/issue-22692.rs:17:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:37:9 | LL | ::std::cell::Cell | ^^^^^^^^^^^^^^^^^ @@ -67,7 +100,7 @@ LL + ::get; | error[E0423]: expected value, found struct `Vec` - --> $DIR/issue-22692.rs:26:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:46:9 | LL | Vec.new() | ^^^ @@ -83,7 +116,7 @@ LL + Vec::new() | error[E0423]: expected value, found struct `Vec` - --> $DIR/issue-22692.rs:31:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:51:9 | LL | Vec.new | ^^^ @@ -99,7 +132,7 @@ LL + Vec::new | error[E0423]: expected value, found struct `std::cell::Cell` - --> $DIR/issue-22692.rs:17:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:37:9 | LL | ::std::cell::Cell | ^^^^^^^^^^^^^^^^^ @@ -114,6 +147,6 @@ LL - Type!().new(0) LL + ::new(0) | -error: aborting due to 8 previous errors +error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0423`. From bfde43c84bfb35fd0d7c7ea46f8cdb0d682ef680 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Thu, 30 Jan 2025 20:45:30 -0600 Subject: [PATCH 090/255] Suggest using :: instead of . for enums in some cases. Suggest replacing `.` with `::` when encountering "expected value, found enum": - in a method-call expression and the method has the same name as a tuple variant - in a field-access expression and the field has the same name as a unit or tuple variant --- .../rustc_resolve/src/late/diagnostics.rs | 70 ++++-- .../enum-expected-value-suggest-variants.rs | 58 +++++ ...num-expected-value-suggest-variants.stderr | 225 ++++++++++++++++++ 3 files changed, 339 insertions(+), 14 deletions(-) create mode 100644 tests/ui/resolve/enum-expected-value-suggest-variants.rs create mode 100644 tests/ui/resolve/enum-expected-value-suggest-variants.stderr diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 524915b44e78..2731efdba48b 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -8,7 +8,7 @@ use rustc_ast::ptr::P; use rustc_ast::visit::{FnCtxt, FnKind, LifetimeCtxt, Visitor, walk_ty}; use rustc_ast::{ self as ast, AssocItemKind, DUMMY_NODE_ID, Expr, ExprKind, GenericParam, GenericParamKind, - Item, ItemKind, MethodCall, NodeId, Path, Ty, TyKind, + Item, ItemKind, MethodCall, NodeId, Path, PathSegment, Ty, TyKind, }; use rustc_ast_pretty::pprust::where_bound_predicate_to_string; use rustc_data_structures::fx::{FxHashSet, FxIndexSet}; @@ -2469,31 +2469,73 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { def_id: DefId, span: Span, ) { - let Some(variants) = self.collect_enum_ctors(def_id) else { + let Some(variant_ctors) = self.collect_enum_ctors(def_id) else { err.note("you might have meant to use one of the enum's variants"); return; }; - let suggest_only_tuple_variants = - matches!(source, PathSource::TupleStruct(..)) || source.is_call(); - if suggest_only_tuple_variants { + // If the expression is a field-access or method-call, try to find a variant with the field/method name + // that could have been intended, and suggest replacing the `.` with `::`. + // Otherwise, suggest adding `::VariantName` after the enum; + // and if the expression is call-like, only suggest tuple variants. + let (suggest_path_sep_dot_span, suggest_only_tuple_variants) = match source { + // `Type(a, b)` in a pattern, only suggest adding a tuple variant after `Type`. + PathSource::TupleStruct(..) => (None, true), + PathSource::Expr(Some(expr)) => match &expr.kind { + // `Type(a, b)`, only suggest adding a tuple variant after `Type`. + ExprKind::Call(..) => (None, true), + // `Type.Foo(a, b)`, suggest replacing `.` -> `::` if variant `Foo` exists and is a tuple variant, + // otherwise suggest adding a variant after `Type`. + ExprKind::MethodCall(box MethodCall { + receiver, + span, + seg: PathSegment { ident, .. }, + .. + }) => { + let dot_span = receiver.span.between(*span); + let found_tuple_variant = variant_ctors.iter().any(|(path, _, ctor_kind)| { + *ctor_kind == CtorKind::Fn + && path.segments.last().is_some_and(|seg| seg.ident == *ident) + }); + (found_tuple_variant.then_some(dot_span), false) + } + // `Type.Foo`, suggest replacing `.` -> `::` if variant `Foo` exists and is a unit or tuple variant, + // otherwise suggest adding a variant after `Type`. + ExprKind::Field(base, ident) => { + let dot_span = base.span.between(ident.span); + let found_tuple_or_unit_variant = variant_ctors.iter().any(|(path, ..)| { + path.segments.last().is_some_and(|seg| seg.ident == *ident) + }); + (found_tuple_or_unit_variant.then_some(dot_span), false) + } + _ => (None, false), + }, + _ => (None, false), + }; + + if let Some(dot_span) = suggest_path_sep_dot_span { + err.span_suggestion_verbose( + dot_span, + "use the path separator to refer to a variant", + "::", + Applicability::MaybeIncorrect, + ); + } else if suggest_only_tuple_variants { // Suggest only tuple variants regardless of whether they have fields and do not // suggest path with added parentheses. - let mut suggestable_variants = variants + let mut suggestable_variants = variant_ctors .iter() .filter(|(.., kind)| *kind == CtorKind::Fn) .map(|(variant, ..)| path_names_to_string(variant)) .collect::>(); suggestable_variants.sort(); - let non_suggestable_variant_count = variants.len() - suggestable_variants.len(); + let non_suggestable_variant_count = variant_ctors.len() - suggestable_variants.len(); - let source_msg = if source.is_call() { - "to construct" - } else if matches!(source, PathSource::TupleStruct(..)) { + let source_msg = if matches!(source, PathSource::TupleStruct(..)) { "to match against" } else { - unreachable!() + "to construct" }; if !suggestable_variants.is_empty() { @@ -2512,7 +2554,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } // If the enum has no tuple variants.. - if non_suggestable_variant_count == variants.len() { + if non_suggestable_variant_count == variant_ctors.len() { err.help(format!("the enum has no tuple variants {source_msg}")); } @@ -2535,7 +2577,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } }; - let mut suggestable_variants = variants + let mut suggestable_variants = variant_ctors .iter() .filter(|(_, def_id, kind)| !needs_placeholder(*def_id, *kind)) .map(|(variant, _, kind)| (path_names_to_string(variant), kind)) @@ -2562,7 +2604,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { ); } - let mut suggestable_variants_with_placeholders = variants + let mut suggestable_variants_with_placeholders = variant_ctors .iter() .filter(|(_, def_id, kind)| needs_placeholder(*def_id, *kind)) .map(|(variant, _, kind)| (path_names_to_string(variant), kind)) diff --git a/tests/ui/resolve/enum-expected-value-suggest-variants.rs b/tests/ui/resolve/enum-expected-value-suggest-variants.rs new file mode 100644 index 000000000000..9f86a0a1ecc7 --- /dev/null +++ b/tests/ui/resolve/enum-expected-value-suggest-variants.rs @@ -0,0 +1,58 @@ +enum Foo { + //~^ HELP consider importing this tuple variant + A(u32), + B(u32), +} + +enum Bar { + C(u32), + D(u32), + E, + F, +} + +fn main() { + let _: Foo = Foo(0); + //~^ ERROR expected function + //~| HELP try to construct one of the enum's variants + + let _: Foo = Foo.A(0); + //~^ ERROR expected value, found enum `Foo` + //~| HELP use the path separator to refer to a variant + + let _: Foo = Foo.Bad(0); + //~^ ERROR expected value, found enum `Foo` + //~| HELP the following enum variants are available + + let _: Bar = Bar(0); + //~^ ERROR expected function + //~| HELP try to construct one of the enum's variants + //~| HELP you might have meant to construct one of the enum's non-tuple variants + + let _: Bar = Bar.C(0); + //~^ ERROR expected value, found enum `Bar` + //~| HELP use the path separator to refer to a variant + + let _: Bar = Bar.E; + //~^ ERROR expected value, found enum `Bar` + //~| HELP use the path separator to refer to a variant + + let _: Bar = Bar.Bad(0); + //~^ ERROR expected value, found enum `Bar` + //~| HELP you might have meant to use one of the following enum variants + //~| HELP alternatively, the following enum variants are also available + + let _: Bar = Bar.Bad; + //~^ ERROR expected value, found enum `Bar` + //~| HELP you might have meant to use one of the following enum variants + //~| HELP alternatively, the following enum variants are also available + + match Foo::A(42) { + A(..) => {} + //~^ ERROR cannot find tuple struct or tuple variant `A` in this scope + Foo(..) => {} + //~^ ERROR expected tuple struct or tuple variant + //~| HELP try to match against one of the enum's variants + _ => {} + } +} diff --git a/tests/ui/resolve/enum-expected-value-suggest-variants.stderr b/tests/ui/resolve/enum-expected-value-suggest-variants.stderr new file mode 100644 index 000000000000..0bd6069b2720 --- /dev/null +++ b/tests/ui/resolve/enum-expected-value-suggest-variants.stderr @@ -0,0 +1,225 @@ +error[E0423]: expected value, found enum `Foo` + --> $DIR/enum-expected-value-suggest-variants.rs:19:18 + | +LL | let _: Foo = Foo.A(0); + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:1:1 + | +LL | / enum Foo { +LL | | +LL | | A(u32), +LL | | B(u32), +LL | | } + | |_^ +help: use the path separator to refer to a variant + | +LL | let _: Foo = Foo::A(0); + | ~~ + +error[E0423]: expected value, found enum `Foo` + --> $DIR/enum-expected-value-suggest-variants.rs:23:18 + | +LL | let _: Foo = Foo.Bad(0); + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:1:1 + | +LL | / enum Foo { +LL | | +LL | | A(u32), +LL | | B(u32), +LL | | } + | |_^ +help: the following enum variants are available + | +LL | let _: Foo = (Foo::A(/* fields */)).Bad(0); + | ~~~~~~~~~~~~~~~~~~~~~~ +LL | let _: Foo = (Foo::B(/* fields */)).Bad(0); + | ~~~~~~~~~~~~~~~~~~~~~~ + +error[E0423]: expected value, found enum `Bar` + --> $DIR/enum-expected-value-suggest-variants.rs:32:18 + | +LL | let _: Bar = Bar.C(0); + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:7:1 + | +LL | / enum Bar { +LL | | C(u32), +LL | | D(u32), +LL | | E, +LL | | F, +LL | | } + | |_^ +help: use the path separator to refer to a variant + | +LL | let _: Bar = Bar::C(0); + | ~~ + +error[E0423]: expected value, found enum `Bar` + --> $DIR/enum-expected-value-suggest-variants.rs:36:18 + | +LL | let _: Bar = Bar.E; + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:7:1 + | +LL | / enum Bar { +LL | | C(u32), +LL | | D(u32), +LL | | E, +LL | | F, +LL | | } + | |_^ +help: use the path separator to refer to a variant + | +LL | let _: Bar = Bar::E; + | ~~ + +error[E0423]: expected value, found enum `Bar` + --> $DIR/enum-expected-value-suggest-variants.rs:40:18 + | +LL | let _: Bar = Bar.Bad(0); + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:7:1 + | +LL | / enum Bar { +LL | | C(u32), +LL | | D(u32), +LL | | E, +LL | | F, +LL | | } + | |_^ +help: you might have meant to use one of the following enum variants + | +LL | let _: Bar = Bar::E.Bad(0); + | ~~~~~~ +LL | let _: Bar = Bar::F.Bad(0); + | ~~~~~~ +help: alternatively, the following enum variants are also available + | +LL | let _: Bar = (Bar::C(/* fields */)).Bad(0); + | ~~~~~~~~~~~~~~~~~~~~~~ +LL | let _: Bar = (Bar::D(/* fields */)).Bad(0); + | ~~~~~~~~~~~~~~~~~~~~~~ + +error[E0423]: expected value, found enum `Bar` + --> $DIR/enum-expected-value-suggest-variants.rs:45:18 + | +LL | let _: Bar = Bar.Bad; + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:7:1 + | +LL | / enum Bar { +LL | | C(u32), +LL | | D(u32), +LL | | E, +LL | | F, +LL | | } + | |_^ +help: you might have meant to use one of the following enum variants + | +LL | let _: Bar = Bar::E.Bad; + | ~~~~~~ +LL | let _: Bar = Bar::F.Bad; + | ~~~~~~ +help: alternatively, the following enum variants are also available + | +LL | let _: Bar = (Bar::C(/* fields */)).Bad; + | ~~~~~~~~~~~~~~~~~~~~~~ +LL | let _: Bar = (Bar::D(/* fields */)).Bad; + | ~~~~~~~~~~~~~~~~~~~~~~ + +error[E0531]: cannot find tuple struct or tuple variant `A` in this scope + --> $DIR/enum-expected-value-suggest-variants.rs:51:9 + | +LL | A(..) => {} + | ^ not found in this scope + | +help: consider importing this tuple variant + | +LL + use Foo::A; + | + +error[E0532]: expected tuple struct or tuple variant, found enum `Foo` + --> $DIR/enum-expected-value-suggest-variants.rs:53:9 + | +LL | Foo(..) => {} + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:1:1 + | +LL | / enum Foo { +LL | | +LL | | A(u32), +LL | | B(u32), +LL | | } + | |_^ +help: try to match against one of the enum's variants + | +LL | Foo::A(..) => {} + | ~~~~~~ +LL | Foo::B(..) => {} + | ~~~~~~ + +error[E0423]: expected function, tuple struct or tuple variant, found enum `Foo` + --> $DIR/enum-expected-value-suggest-variants.rs:15:18 + | +LL | let _: Foo = Foo(0); + | ^^^ + | +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:1:1 + | +LL | / enum Foo { +LL | | +LL | | A(u32), +LL | | B(u32), +LL | | } + | |_^ +help: try to construct one of the enum's variants + | +LL | let _: Foo = Foo::A(0); + | ~~~~~~ +LL | let _: Foo = Foo::B(0); + | ~~~~~~ + +error[E0423]: expected function, tuple struct or tuple variant, found enum `Bar` + --> $DIR/enum-expected-value-suggest-variants.rs:27:18 + | +LL | let _: Bar = Bar(0); + | ^^^ + | + = help: you might have meant to construct one of the enum's non-tuple variants +note: the enum is defined here + --> $DIR/enum-expected-value-suggest-variants.rs:7:1 + | +LL | / enum Bar { +LL | | C(u32), +LL | | D(u32), +LL | | E, +LL | | F, +LL | | } + | |_^ +help: try to construct one of the enum's variants + | +LL | let _: Bar = Bar::C(0); + | ~~~~~~ +LL | let _: Bar = Bar::D(0); + | ~~~~~~ + +error: aborting due to 10 previous errors + +Some errors have detailed explanations: E0423, E0531, E0532. +For more information about an error, try `rustc --explain E0423`. From ae7b45a6d4b25f01f5c8b9ed547a980146c0d519 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Fri, 31 Jan 2025 16:28:25 -0600 Subject: [PATCH 091/255] When giving a suggestion to use :: instead of . where the rhs is a macro giving a type, make it also work when the rhs is a type alias, not just a struct. --- .../rustc_resolve/src/late/diagnostics.rs | 2 +- ...otation-type-namespace-suggest-path-sep.rs | 43 +++++++++ ...ion-type-namespace-suggest-path-sep.stderr | 96 ++++++++++++++++++- 3 files changed, 137 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index 2731efdba48b..b37c684a0556 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -1529,7 +1529,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { Applicability::MaybeIncorrect, ); true - } else if kind == DefKind::Struct + } else if matches!(kind, DefKind::Struct | DefKind::TyAlias) && let Some(lhs_source_span) = lhs_span.find_ancestor_inside(expr.span) && let Ok(snippet) = this.r.tcx.sess.source_map().span_to_snippet(lhs_source_span) { diff --git a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs index 104d11f685cc..432e3c0b77ef 100644 --- a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs +++ b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.rs @@ -39,6 +39,12 @@ macro_rules! Type { //~| ERROR expected value, found struct `std::cell::Cell` //~| ERROR expected value, found struct `std::cell::Cell` }; + (alias) => { + Alias + //~^ ERROR expected value, found type alias `Alias` + //~| ERROR expected value, found type alias `Alias` + //~| ERROR expected value, found type alias `Alias` + }; } macro_rules! create { @@ -56,6 +62,32 @@ macro_rules! create { Type!().new(0) //~^ HELP use the path separator }; + (macro method alias) => { + Type!(alias).new(0) + //~^ HELP use the path separator + }; +} + +macro_rules! check_ty { + ($Ty:ident) => { + $Ty.foo + //~^ ERROR expected value, found type alias `Alias` + //~| HELP use the path separator + }; +} +macro_rules! check_ident { + ($Ident:ident) => { + Alias.$Ident + //~^ ERROR expected value, found type alias `Alias` + //~| HELP use the path separator + }; +} +macro_rules! check_ty_ident { + ($Ty:ident, $Ident:ident) => { + $Ty.$Ident + //~^ ERROR expected value, found type alias `Alias` + //~| HELP use the path separator + }; } fn interaction_with_macros() { @@ -70,6 +102,12 @@ fn interaction_with_macros() { Type! {}.get; //~^ HELP use the path separator + Type!(alias).get(); + //~^ HELP use the path separator + + Type! {alias}.get; + //~^ HELP use the path separator + // // Ensure that the suggestion is shown for expressions inside of macro definitions. // @@ -77,4 +115,9 @@ fn interaction_with_macros() { let _ = create!(type method); let _ = create!(type field); let _ = create!(macro method); + let _ = create!(macro method alias); + + let _ = check_ty!(Alias); + let _ = check_ident!(foo); + let _ = check_ty_ident!(Alias, foo); } diff --git a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr index a5397306b01e..bb2ae7f2de2d 100644 --- a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr +++ b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr @@ -99,8 +99,38 @@ LL - Type! {}.get; LL + ::get; | +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:43:9 + | +LL | Alias + | ^^^^^ +... +LL | Type!(alias).get(); + | ------------ in this macro invocation + | + = note: this error originates in the macro `Type` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | ::get(); + | ~~~~~~~~~~~~~~~~ + +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:43:9 + | +LL | Alias + | ^^^^^ +... +LL | Type! {alias}.get; + | ------------- in this macro invocation + | + = note: this error originates in the macro `Type` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | ::get; + | ~~~~~~~~~~~~~~~~~ + error[E0423]: expected value, found struct `Vec` - --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:46:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:52:9 | LL | Vec.new() | ^^^ @@ -116,7 +146,7 @@ LL + Vec::new() | error[E0423]: expected value, found struct `Vec` - --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:51:9 + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:57:9 | LL | Vec.new | ^^^ @@ -147,6 +177,66 @@ LL - Type!().new(0) LL + ::new(0) | -error: aborting due to 11 previous errors +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:43:9 + | +LL | Alias + | ^^^^^ +... +LL | let _ = create!(macro method alias); + | --------------------------- in this macro invocation + | + = note: this error originates in the macro `Type` which comes from the expansion of the macro `create` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | ::new(0) + | ~~~~~~~~~~~~~~~~ + +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:73:9 + | +LL | $Ty.foo + | ^^^ +... +LL | let _ = check_ty!(Alias); + | ---------------- in this macro invocation + | + = note: this error originates in the macro `check_ty` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | $Ty::foo + | ~~ + +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:80:9 + | +LL | Alias.$Ident + | ^^^^^ +... +LL | let _ = check_ident!(foo); + | ----------------- in this macro invocation + | + = note: this error originates in the macro `check_ident` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | ::$Ident + | ~~~~~~~~~ + +error[E0423]: expected value, found type alias `Alias` + --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:87:9 + | +LL | $Ty.$Ident + | ^^^ +... +LL | let _ = check_ty_ident!(Alias, foo); + | --------------------------- in this macro invocation + | + = note: this error originates in the macro `check_ty_ident` (in Nightly builds, run with -Z macro-backtrace for more info) +help: use the path separator to refer to an item + | +LL | <$Ty>::$Ident + | ~~~~~~~ + +error: aborting due to 17 previous errors For more information about this error, try `rustc --explain E0423`. From e639e886b24d51a527e05477b787246148ce8cc2 Mon Sep 17 00:00:00 2001 From: Samuel Tardieu Date: Wed, 12 Feb 2025 10:35:32 +0100 Subject: [PATCH 092/255] Lint `#[must_use]` attributes applied to methods in trait impls The `#[must_use]` attribute has no effect when applied to methods in trait implementations. This case was not linted before. --- compiler/rustc_passes/src/check_attr.rs | 49 ++++++++++++------- .../lint/unused/unused_attributes-must_use.rs | 5 ++ .../unused/unused_attributes-must_use.stderr | 36 ++++++++------ 3 files changed, 56 insertions(+), 34 deletions(-) diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index f578708b40cd..939637d0e296 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -1431,37 +1431,48 @@ impl<'tcx> CheckAttrVisitor<'tcx> { /// Warns against some misuses of `#[must_use]` fn check_must_use(&self, hir_id: HirId, attr: &Attribute, target: Target) { - if !matches!( + if matches!( target, Target::Fn | Target::Enum | Target::Struct | Target::Union - | Target::Method(_) + | Target::Method(MethodKind::Trait { body: false } | MethodKind::Inherent) | Target::ForeignFn // `impl Trait` in return position can trip // `unused_must_use` if `Trait` is marked as // `#[must_use]` | Target::Trait ) { - let article = match target { - Target::ExternCrate - | Target::Enum - | Target::Impl - | Target::Expression - | Target::Arm - | Target::AssocConst - | Target::AssocTy => "an", - _ => "a", - }; - - self.tcx.emit_node_span_lint( - UNUSED_ATTRIBUTES, - hir_id, - attr.span, - errors::MustUseNoEffect { article, target }, - ); + return; } + + // `#[must_use]` can be applied to a trait method definition with a default body + if let Target::Method(MethodKind::Trait { body: true }) = target + && let parent_def_id = self.tcx.hir().get_parent_item(hir_id).def_id + && let containing_item = self.tcx.hir().expect_item(parent_def_id) + && let hir::ItemKind::Trait(..) = containing_item.kind + { + return; + } + + let article = match target { + Target::ExternCrate + | Target::Enum + | Target::Impl + | Target::Expression + | Target::Arm + | Target::AssocConst + | Target::AssocTy => "an", + _ => "a", + }; + + self.tcx.emit_node_span_lint( + UNUSED_ATTRIBUTES, + hir_id, + attr.span, + errors::MustUseNoEffect { article, target }, + ); } /// Checks if `#[must_not_suspend]` is applied to a struct, enum, union, or trait. diff --git a/tests/ui/lint/unused/unused_attributes-must_use.rs b/tests/ui/lint/unused/unused_attributes-must_use.rs index 51f868706b69..860fc5046d10 100644 --- a/tests/ui/lint/unused/unused_attributes-must_use.rs +++ b/tests/ui/lint/unused/unused_attributes-must_use.rs @@ -79,6 +79,11 @@ trait Use { #[must_use] //~ ERROR `#[must_use]` has no effect impl Use for () { type AssocTy = (); + + #[must_use] //~ ERROR `#[must_use]` has no effect + fn get_four(&self) -> usize { + 4 + } } #[must_use] //~ ERROR `#[must_use]` has no effect diff --git a/tests/ui/lint/unused/unused_attributes-must_use.stderr b/tests/ui/lint/unused/unused_attributes-must_use.stderr index 9633767c4428..28fd8eeb8cbd 100644 --- a/tests/ui/lint/unused/unused_attributes-must_use.stderr +++ b/tests/ui/lint/unused/unused_attributes-must_use.stderr @@ -76,43 +76,43 @@ LL | #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a trait alias - --> $DIR/unused_attributes-must_use.rs:84:1 + --> $DIR/unused_attributes-must_use.rs:89:1 | LL | #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a macro def - --> $DIR/unused_attributes-must_use.rs:87:1 + --> $DIR/unused_attributes-must_use.rs:92:1 | LL | #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a statement - --> $DIR/unused_attributes-must_use.rs:95:5 + --> $DIR/unused_attributes-must_use.rs:100:5 | LL | #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a closure - --> $DIR/unused_attributes-must_use.rs:99:13 + --> $DIR/unused_attributes-must_use.rs:104:13 | LL | let x = #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to an match arm - --> $DIR/unused_attributes-must_use.rs:121:9 + --> $DIR/unused_attributes-must_use.rs:126:9 | LL | #[must_use] | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a struct field - --> $DIR/unused_attributes-must_use.rs:129:28 + --> $DIR/unused_attributes-must_use.rs:134:28 | LL | let s = PatternField { #[must_use] foo: 123 }; | ^^^^^^^^^^^ error: `#[must_use]` has no effect when applied to a pattern field - --> $DIR/unused_attributes-must_use.rs:130:24 + --> $DIR/unused_attributes-must_use.rs:135:24 | LL | let PatternField { #[must_use] foo } = s; | ^^^^^^^^^^^ @@ -129,6 +129,12 @@ error: `#[must_use]` has no effect when applied to an associated type LL | #[must_use] | ^^^^^^^^^^^ +error: `#[must_use]` has no effect when applied to a provided trait method + --> $DIR/unused_attributes-must_use.rs:83:5 + | +LL | #[must_use] + | ^^^^^^^^^^^ + error: `#[must_use]` has no effect when applied to a foreign static item --> $DIR/unused_attributes-must_use.rs:50:5 | @@ -136,7 +142,7 @@ LL | #[must_use] | ^^^^^^^^^^^ error: unused `X` that must be used - --> $DIR/unused_attributes-must_use.rs:103:5 + --> $DIR/unused_attributes-must_use.rs:108:5 | LL | X; | ^ @@ -152,7 +158,7 @@ LL | let _ = X; | +++++++ error: unused `Y` that must be used - --> $DIR/unused_attributes-must_use.rs:104:5 + --> $DIR/unused_attributes-must_use.rs:109:5 | LL | Y::Z; | ^^^^ @@ -163,7 +169,7 @@ LL | let _ = Y::Z; | +++++++ error: unused `U` that must be used - --> $DIR/unused_attributes-must_use.rs:105:5 + --> $DIR/unused_attributes-must_use.rs:110:5 | LL | U { unit: () }; | ^^^^^^^^^^^^^^ @@ -174,7 +180,7 @@ LL | let _ = U { unit: () }; | +++++++ error: unused return value of `U::method` that must be used - --> $DIR/unused_attributes-must_use.rs:106:5 + --> $DIR/unused_attributes-must_use.rs:111:5 | LL | U::method(); | ^^^^^^^^^^^ @@ -185,7 +191,7 @@ LL | let _ = U::method(); | +++++++ error: unused return value of `foo` that must be used - --> $DIR/unused_attributes-must_use.rs:107:5 + --> $DIR/unused_attributes-must_use.rs:112:5 | LL | foo(); | ^^^^^ @@ -196,7 +202,7 @@ LL | let _ = foo(); | +++++++ error: unused return value of `foreign_foo` that must be used - --> $DIR/unused_attributes-must_use.rs:110:9 + --> $DIR/unused_attributes-must_use.rs:115:9 | LL | foreign_foo(); | ^^^^^^^^^^^^^ @@ -207,7 +213,7 @@ LL | let _ = foreign_foo(); | +++++++ error: unused return value of `Use::get_four` that must be used - --> $DIR/unused_attributes-must_use.rs:118:5 + --> $DIR/unused_attributes-must_use.rs:123:5 | LL | ().get_four(); | ^^^^^^^^^^^^^ @@ -217,5 +223,5 @@ help: use `let _ = ...` to ignore the resulting value LL | let _ = ().get_four(); | +++++++ -error: aborting due to 28 previous errors +error: aborting due to 29 previous errors From 2c3725021e1b976ecc30b902f74e0f867c634592 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Tue, 11 Feb 2025 12:49:36 -0600 Subject: [PATCH 093/255] Update `.` -> `::` tests for new diff suggestion format. --- ...ion-type-namespace-suggest-path-sep.stderr | 45 ++++++++----- ...num-expected-value-suggest-variants.stderr | 65 +++++++++++-------- 2 files changed, 64 insertions(+), 46 deletions(-) diff --git a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr index bb2ae7f2de2d..d74814dd876c 100644 --- a/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr +++ b/tests/ui/resolve/dot-notation-type-namespace-suggest-path-sep.stderr @@ -42,8 +42,9 @@ LL | let _ = Alias.new(); | help: use the path separator to refer to an item | -LL | let _ = Alias::new(); - | ~~ +LL - let _ = Alias.new(); +LL + let _ = Alias::new(); + | error[E0423]: expected value, found type alias `Alias` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:26:13 @@ -53,8 +54,9 @@ LL | let _ = Alias.default; | help: use the path separator to refer to an item | -LL | let _ = Alias::default; - | ~~ +LL - let _ = Alias.default; +LL + let _ = Alias::default; + | error[E0423]: expected value, found module `foo` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:30:13 @@ -64,8 +66,9 @@ LL | let _ = foo.bar; | help: use the path separator to refer to an item | -LL | let _ = foo::bar; - | ~~ +LL - let _ = foo.bar; +LL + let _ = foo::bar; + | error[E0423]: expected value, found struct `std::cell::Cell` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:37:9 @@ -111,8 +114,9 @@ LL | Type!(alias).get(); = note: this error originates in the macro `Type` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | ::get(); - | ~~~~~~~~~~~~~~~~ +LL - Type!(alias).get(); +LL + ::get(); + | error[E0423]: expected value, found type alias `Alias` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:43:9 @@ -126,8 +130,9 @@ LL | Type! {alias}.get; = note: this error originates in the macro `Type` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | ::get; - | ~~~~~~~~~~~~~~~~~ +LL - Type! {alias}.get; +LL + ::get; + | error[E0423]: expected value, found struct `Vec` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:52:9 @@ -189,8 +194,9 @@ LL | let _ = create!(macro method alias); = note: this error originates in the macro `Type` which comes from the expansion of the macro `create` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | ::new(0) - | ~~~~~~~~~~~~~~~~ +LL - Type!(alias).new(0) +LL + ::new(0) + | error[E0423]: expected value, found type alias `Alias` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:73:9 @@ -204,8 +210,9 @@ LL | let _ = check_ty!(Alias); = note: this error originates in the macro `check_ty` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | $Ty::foo - | ~~ +LL - $Ty.foo +LL + $Ty::foo + | error[E0423]: expected value, found type alias `Alias` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:80:9 @@ -219,8 +226,9 @@ LL | let _ = check_ident!(foo); = note: this error originates in the macro `check_ident` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | ::$Ident - | ~~~~~~~~~ +LL - Alias.$Ident +LL + ::$Ident + | error[E0423]: expected value, found type alias `Alias` --> $DIR/dot-notation-type-namespace-suggest-path-sep.rs:87:9 @@ -234,8 +242,9 @@ LL | let _ = check_ty_ident!(Alias, foo); = note: this error originates in the macro `check_ty_ident` (in Nightly builds, run with -Z macro-backtrace for more info) help: use the path separator to refer to an item | -LL | <$Ty>::$Ident - | ~~~~~~~ +LL - $Ty.$Ident +LL + <$Ty>::$Ident + | error: aborting due to 17 previous errors diff --git a/tests/ui/resolve/enum-expected-value-suggest-variants.stderr b/tests/ui/resolve/enum-expected-value-suggest-variants.stderr index 0bd6069b2720..548a4c0e5932 100644 --- a/tests/ui/resolve/enum-expected-value-suggest-variants.stderr +++ b/tests/ui/resolve/enum-expected-value-suggest-variants.stderr @@ -15,8 +15,9 @@ LL | | } | |_^ help: use the path separator to refer to a variant | -LL | let _: Foo = Foo::A(0); - | ~~ +LL - let _: Foo = Foo.A(0); +LL + let _: Foo = Foo::A(0); + | error[E0423]: expected value, found enum `Foo` --> $DIR/enum-expected-value-suggest-variants.rs:23:18 @@ -35,10 +36,12 @@ LL | | } | |_^ help: the following enum variants are available | -LL | let _: Foo = (Foo::A(/* fields */)).Bad(0); - | ~~~~~~~~~~~~~~~~~~~~~~ -LL | let _: Foo = (Foo::B(/* fields */)).Bad(0); - | ~~~~~~~~~~~~~~~~~~~~~~ +LL - let _: Foo = Foo.Bad(0); +LL + let _: Foo = (Foo::A(/* fields */)).Bad(0); + | +LL - let _: Foo = Foo.Bad(0); +LL + let _: Foo = (Foo::B(/* fields */)).Bad(0); + | error[E0423]: expected value, found enum `Bar` --> $DIR/enum-expected-value-suggest-variants.rs:32:18 @@ -58,8 +61,9 @@ LL | | } | |_^ help: use the path separator to refer to a variant | -LL | let _: Bar = Bar::C(0); - | ~~ +LL - let _: Bar = Bar.C(0); +LL + let _: Bar = Bar::C(0); + | error[E0423]: expected value, found enum `Bar` --> $DIR/enum-expected-value-suggest-variants.rs:36:18 @@ -79,8 +83,9 @@ LL | | } | |_^ help: use the path separator to refer to a variant | -LL | let _: Bar = Bar::E; - | ~~ +LL - let _: Bar = Bar.E; +LL + let _: Bar = Bar::E; + | error[E0423]: expected value, found enum `Bar` --> $DIR/enum-expected-value-suggest-variants.rs:40:18 @@ -101,15 +106,17 @@ LL | | } help: you might have meant to use one of the following enum variants | LL | let _: Bar = Bar::E.Bad(0); - | ~~~~~~ + | +++ LL | let _: Bar = Bar::F.Bad(0); - | ~~~~~~ + | +++ help: alternatively, the following enum variants are also available | -LL | let _: Bar = (Bar::C(/* fields */)).Bad(0); - | ~~~~~~~~~~~~~~~~~~~~~~ -LL | let _: Bar = (Bar::D(/* fields */)).Bad(0); - | ~~~~~~~~~~~~~~~~~~~~~~ +LL - let _: Bar = Bar.Bad(0); +LL + let _: Bar = (Bar::C(/* fields */)).Bad(0); + | +LL - let _: Bar = Bar.Bad(0); +LL + let _: Bar = (Bar::D(/* fields */)).Bad(0); + | error[E0423]: expected value, found enum `Bar` --> $DIR/enum-expected-value-suggest-variants.rs:45:18 @@ -130,15 +137,17 @@ LL | | } help: you might have meant to use one of the following enum variants | LL | let _: Bar = Bar::E.Bad; - | ~~~~~~ + | +++ LL | let _: Bar = Bar::F.Bad; - | ~~~~~~ + | +++ help: alternatively, the following enum variants are also available | -LL | let _: Bar = (Bar::C(/* fields */)).Bad; - | ~~~~~~~~~~~~~~~~~~~~~~ -LL | let _: Bar = (Bar::D(/* fields */)).Bad; - | ~~~~~~~~~~~~~~~~~~~~~~ +LL - let _: Bar = Bar.Bad; +LL + let _: Bar = (Bar::C(/* fields */)).Bad; + | +LL - let _: Bar = Bar.Bad; +LL + let _: Bar = (Bar::D(/* fields */)).Bad; + | error[E0531]: cannot find tuple struct or tuple variant `A` in this scope --> $DIR/enum-expected-value-suggest-variants.rs:51:9 @@ -169,9 +178,9 @@ LL | | } help: try to match against one of the enum's variants | LL | Foo::A(..) => {} - | ~~~~~~ + | +++ LL | Foo::B(..) => {} - | ~~~~~~ + | +++ error[E0423]: expected function, tuple struct or tuple variant, found enum `Foo` --> $DIR/enum-expected-value-suggest-variants.rs:15:18 @@ -191,9 +200,9 @@ LL | | } help: try to construct one of the enum's variants | LL | let _: Foo = Foo::A(0); - | ~~~~~~ + | +++ LL | let _: Foo = Foo::B(0); - | ~~~~~~ + | +++ error[E0423]: expected function, tuple struct or tuple variant, found enum `Bar` --> $DIR/enum-expected-value-suggest-variants.rs:27:18 @@ -215,9 +224,9 @@ LL | | } help: try to construct one of the enum's variants | LL | let _: Bar = Bar::C(0); - | ~~~~~~ + | +++ LL | let _: Bar = Bar::D(0); - | ~~~~~~ + | +++ error: aborting due to 10 previous errors From a467ecacd4e77a3704924f5ac46f8a752e1e73e5 Mon Sep 17 00:00:00 2001 From: yukang Date: Wed, 19 Feb 2025 08:35:51 +0800 Subject: [PATCH 094/255] Add custom sort for link in rustdoc --- src/librustdoc/html/render/sidebar.rs | 18 +++++++++++++++++- .../rustdoc-gui/sidebar-foreign-impl-sort.goml | 15 +++++++++++++++ tests/rustdoc-gui/src/test_docs/lib.rs | 18 ++++++++++++++++++ 3 files changed, 50 insertions(+), 1 deletion(-) create mode 100644 tests/rustdoc-gui/sidebar-foreign-impl-sort.goml diff --git a/src/librustdoc/html/render/sidebar.rs b/src/librustdoc/html/render/sidebar.rs index 50c09b98db44..64dbaf9083e7 100644 --- a/src/librustdoc/html/render/sidebar.rs +++ b/src/librustdoc/html/render/sidebar.rs @@ -1,4 +1,5 @@ use std::borrow::Cow; +use std::cmp::Ordering; use rinja::Template; use rustc_data_structures::fx::FxHashSet; @@ -12,6 +13,7 @@ use crate::clean; use crate::formats::Impl; use crate::formats::item_type::ItemType; use crate::html::markdown::{IdMap, MarkdownWithToc}; +use crate::html::render::print_item::compare_names; #[derive(Clone, Copy)] pub(crate) enum ModuleLike { @@ -77,7 +79,7 @@ impl<'a> LinkBlock<'a> { } /// A link to an item. Content should not be escaped. -#[derive(PartialOrd, Ord, PartialEq, Eq, Hash, Clone)] +#[derive(Ord, PartialEq, Eq, Hash, Clone)] pub(crate) struct Link<'a> { /// The content for the anchor tag and title attr name: Cow<'a, str>, @@ -89,6 +91,20 @@ pub(crate) struct Link<'a> { children: Vec>, } +impl PartialOrd for Link<'_> { + fn partial_cmp(&self, other: &Link<'_>) -> Option { + match compare_names(&self.name, &other.name) { + Ordering::Equal => (), + result => return Some(result), + } + (&self.name_html, &self.href, &self.children).partial_cmp(&( + &other.name_html, + &other.href, + &other.children, + )) + } +} + impl<'a> Link<'a> { pub fn new(href: impl Into>, name: impl Into>) -> Self { Self { href: href.into(), name: name.into(), children: vec![], name_html: None } diff --git a/tests/rustdoc-gui/sidebar-foreign-impl-sort.goml b/tests/rustdoc-gui/sidebar-foreign-impl-sort.goml new file mode 100644 index 000000000000..f09f09713514 --- /dev/null +++ b/tests/rustdoc-gui/sidebar-foreign-impl-sort.goml @@ -0,0 +1,15 @@ +// Checks sidebar resizing close the Settings popover +go-to: "file://" + |DOC_PATH| + "/test_docs/SidebarSort/trait.Sort.html#foreign-impls" + +// Check that the sidebar contains the expected foreign implementations +assert-text: (".sidebar-elems section ul > li:nth-child(1)", "&'a str") +assert-text: (".sidebar-elems section ul > li:nth-child(2)", "AtomicBool") +assert-text: (".sidebar-elems section ul > li:nth-child(3)", "AtomicU8") +assert-text: (".sidebar-elems section ul > li:nth-child(4)", "AtomicU16") +assert-text: (".sidebar-elems section ul > li:nth-child(5)", "AtomicU32") +assert-text: (".sidebar-elems section ul > li:nth-child(6)", "Cell") +assert-text: (".sidebar-elems section ul > li:nth-child(7)", "Cell") +assert-text: (".sidebar-elems section ul > li:nth-child(8)", "u8") +assert-text: (".sidebar-elems section ul > li:nth-child(9)", "u16") +assert-text: (".sidebar-elems section ul > li:nth-child(10)", "u32") +assert-text: (".sidebar-elems section ul > li:nth-child(11)", "usize") diff --git a/tests/rustdoc-gui/src/test_docs/lib.rs b/tests/rustdoc-gui/src/test_docs/lib.rs index 1a9ffbe88985..f9c20ab22b89 100644 --- a/tests/rustdoc-gui/src/test_docs/lib.rs +++ b/tests/rustdoc-gui/src/test_docs/lib.rs @@ -713,3 +713,21 @@ pub trait ItemsTrait { /// blablala fn bar(); } + +pub mod SidebarSort { + use std::cell::Cell; + use std::sync::atomic::*; + pub trait Sort {} + + impl Sort for u32 {} + impl Sort for u8 {} + impl Sort for u16 {} + impl Sort for usize {} + impl Sort for AtomicU32 {} + impl Sort for AtomicU16 {} + impl Sort for AtomicU8 {} + impl Sort for AtomicBool {} + impl Sort for Cell {} + impl Sort for Cell {} + impl<'a> Sort for &'a str {} +} From e24833a4a8789c0acd1850284b3fd660d7a0094a Mon Sep 17 00:00:00 2001 From: dianne Date: Wed, 22 Jan 2025 23:59:03 -0800 Subject: [PATCH 095/255] add test revisions for old-edition behavior of feature gates This also adds `#[cfg]` attributes to tests for bindings' types, to make it visually clearer which revisions type successfully. --- .../borrowck-errors.classic2021.stderr | 37 ++ .../borrowck-errors.classic2024.stderr | 22 +- .../experimental/borrowck-errors.rs | 24 +- .../borrowck-errors.stable2021.stderr | 12 +- .../borrowck-errors.structural2021.stderr | 25 ++ .../borrowck-errors.structural2024.stderr | 4 +- .../mut-ref-mut.classic2024.stderr | 6 +- .../experimental/mut-ref-mut.rs | 16 +- .../mut-ref-mut.structural2024.stderr | 6 +- .../pattern-errors.classic2021.stderr | 354 ++++++++++++++++++ .../pattern-errors.classic2024.stderr | 20 +- .../experimental/pattern-errors.rs | 115 +++--- .../pattern-errors.stable2021.stderr | 52 +-- .../pattern-errors.structural2021.stderr | 354 ++++++++++++++++++ .../pattern-errors.structural2024.stderr | 50 +-- ...nding-on-inh-ref-errors.classic2021.stderr | 9 + ...nding-on-inh-ref-errors.classic2024.stderr | 20 +- .../ref-binding-on-inh-ref-errors.rs | 26 +- ...inding-on-inh-ref-errors.stable2021.stderr | 6 +- ...ng-on-inh-ref-errors.structural2021.stderr | 9 + ...ng-on-inh-ref-errors.structural2024.stderr | 46 +-- ...t-inside-shared-ref-pat.classic2021.stderr | 63 ++++ ...ut-inside-shared-ref-pat.classic2024.fixed | 24 +- ...t-inside-shared-ref-pat.classic2024.stderr | 14 +- .../ref-mut-inside-shared-ref-pat.rs | 24 +- ...ut-inside-shared-ref-pat.stable2021.stderr | 12 +- ...nside-shared-ref-pat.structural2021.stderr | 55 +++ ...inside-shared-ref-pat.structural2024.fixed | 24 +- ...nside-shared-ref-pat.structural2024.stderr | 12 +- ...well-typed-edition-2024.classic2021.stderr | 254 +++++++++++++ .../experimental/well-typed-edition-2024.rs | 112 +++--- .../well-typed-edition-2024.stable2021.stderr | 44 +-- ...l-typed-edition-2024.structural2021.stderr | 254 +++++++++++++ 33 files changed, 1783 insertions(+), 322 deletions(-) create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2021.stderr new file mode 100644 index 000000000000..355a8af6760f --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2021.stderr @@ -0,0 +1,37 @@ +error[E0507]: cannot move out of a shared reference + --> $DIR/borrowck-errors.rs:31:29 + | +LL | if let Some(&Some(x)) = Some(&Some(&mut 0)) { + | - ^^^^^^^^^^^^^^^^^^^ + | | + | data moved here + | move occurs because `x` has type `&mut u32`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - if let Some(&Some(x)) = Some(&Some(&mut 0)) { +LL + if let Some(Some(x)) = Some(&Some(&mut 0)) { + | + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/borrowck-errors.rs:36:10 + | +LL | let &ref mut x = &0; + | ^^^^^^^^^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/borrowck-errors.rs:41:23 + | +LL | if let &Some(Some(x)) = &Some(&mut Some(0)) { + | ^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/borrowck-errors.rs:46:11 + | +LL | let &[x] = &&mut [0]; + | ^ cannot borrow as mutable + +error: aborting due to 4 previous errors + +Some errors have detailed explanations: E0507, E0596. +For more information about an error, try `rustc --explain E0507`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2024.stderr index 1c4461783082..d40bdb9111b3 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.classic2024.stderr @@ -1,25 +1,25 @@ -error[E0508]: cannot move out of type `[&mut u32; 1]`, a non-copy array - --> $DIR/borrowck-errors.rs:13:16 +error[E0508]: cannot move out of type `[&mut i32; 1]`, a non-copy array + --> $DIR/borrowck-errors.rs:15:16 | LL | let [&x] = &[&mut 0]; | - ^^^^^^^^^ cannot move out of here | | | data moved here - | move occurs because `x` has type `&mut u32`, which does not implement the `Copy` trait + | move occurs because `x` has type `&mut i32`, which does not implement the `Copy` trait | help: consider borrowing the pattern binding | LL | let [&ref x] = &[&mut 0]; | +++ -error[E0508]: cannot move out of type `[&mut u32; 1]`, a non-copy array - --> $DIR/borrowck-errors.rs:19:16 +error[E0508]: cannot move out of type `[&mut i32; 1]`, a non-copy array + --> $DIR/borrowck-errors.rs:22:16 | LL | let [&x] = &mut [&mut 0]; | - ^^^^^^^^^^^^^ cannot move out of here | | | data moved here - | move occurs because `x` has type `&mut u32`, which does not implement the `Copy` trait + | move occurs because `x` has type `&mut i32`, which does not implement the `Copy` trait | help: consider borrowing the pattern binding | @@ -27,7 +27,7 @@ LL | let [&ref x] = &mut [&mut 0]; | +++ error[E0507]: cannot move out of a shared reference - --> $DIR/borrowck-errors.rs:27:29 + --> $DIR/borrowck-errors.rs:31:29 | LL | if let Some(&Some(x)) = Some(&Some(&mut 0)) { | - ^^^^^^^^^^^^^^^^^^^ @@ -42,25 +42,25 @@ LL + if let Some(Some(x)) = Some(&Some(&mut 0)) { | error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:32:10 + --> $DIR/borrowck-errors.rs:36:10 | LL | let &ref mut x = &0; | ^^^^^^^^^ cannot borrow as mutable error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:37:23 + --> $DIR/borrowck-errors.rs:41:23 | LL | if let &Some(Some(x)) = &Some(&mut Some(0)) { | ^ cannot borrow as mutable error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:42:11 + --> $DIR/borrowck-errors.rs:46:11 | LL | let &[x] = &&mut [0]; | ^ cannot borrow as mutable error[E0508]: cannot move out of type `[&mut i32; 1]`, a non-copy array - --> $DIR/borrowck-errors.rs:46:20 + --> $DIR/borrowck-errors.rs:50:20 | LL | let [&mut x] = &mut [&mut 0]; | - ^^^^^^^^^^^^^ cannot move out of here diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.rs index 59cafc50d866..621ca7cc792e 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.rs @@ -1,11 +1,13 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //! Tests for pattern errors not handled by the pattern typing rules, but by borrowck. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] /// These patterns additionally use `&` to match a `&mut` reference type, which causes compilation /// to fail in HIR typeck on stable. As such, they need to be separate from the other tests. @@ -14,13 +16,15 @@ fn errors_caught_in_hir_typeck_on_stable() { //[stable2021]~^ mismatched types //[stable2021]~| types differ in mutability //[classic2024]~^^^ ERROR: cannot move out of type - let _: &u32 = x; + #[cfg(any(classic2021, structural2021))] let _: u32 = x; + #[cfg(structural2024)] let _: &u32 = x; let [&x] = &mut [&mut 0]; //[stable2021]~^ mismatched types //[stable2021]~| types differ in mutability //[classic2024]~^^^ ERROR: cannot move out of type - let _: &u32 = x; + #[cfg(any(classic2021, structural2021))] let _: u32 = x; + #[cfg(structural2024)] let _: &u32 = x; } pub fn main() { @@ -35,16 +39,16 @@ pub fn main() { // For 2021 edition, this is also a regression test for #136223 // since the maximum mutability is downgraded during the pattern check process. if let &Some(Some(x)) = &Some(&mut Some(0)) { - //[stable2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable - let _: &u32 = x; + //[stable2021,classic2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable + #[cfg(any(structural2021, structural2024))] let _: &u32 = x; } let &[x] = &&mut [0]; - //[stable2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable - let _: &u32 = x; + //[stable2021,classic2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable + #[cfg(any(structural2021, structural2024))] let _: &u32 = x; let [&mut x] = &mut [&mut 0]; //[classic2024]~^ ERROR: cannot move out of type - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(structural2024)] let _: &mut u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.stable2021.stderr index deefe21ca7d4..edcf9f303570 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.stable2021.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/borrowck-errors.rs:13:10 + --> $DIR/borrowck-errors.rs:15:10 | LL | let [&x] = &[&mut 0]; | ^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -15,7 +15,7 @@ LL + let [x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/borrowck-errors.rs:19:10 + --> $DIR/borrowck-errors.rs:22:10 | LL | let [&x] = &mut [&mut 0]; | ^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -31,7 +31,7 @@ LL + let [x] = &mut [&mut 0]; | error[E0507]: cannot move out of a shared reference - --> $DIR/borrowck-errors.rs:27:29 + --> $DIR/borrowck-errors.rs:31:29 | LL | if let Some(&Some(x)) = Some(&Some(&mut 0)) { | - ^^^^^^^^^^^^^^^^^^^ @@ -46,19 +46,19 @@ LL + if let Some(Some(x)) = Some(&Some(&mut 0)) { | error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:32:10 + --> $DIR/borrowck-errors.rs:36:10 | LL | let &ref mut x = &0; | ^^^^^^^^^ cannot borrow as mutable error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:37:23 + --> $DIR/borrowck-errors.rs:41:23 | LL | if let &Some(Some(x)) = &Some(&mut Some(0)) { | ^ cannot borrow as mutable error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:42:11 + --> $DIR/borrowck-errors.rs:46:11 | LL | let &[x] = &&mut [0]; | ^ cannot borrow as mutable diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2021.stderr new file mode 100644 index 000000000000..208f6c8bbed0 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2021.stderr @@ -0,0 +1,25 @@ +error[E0507]: cannot move out of a shared reference + --> $DIR/borrowck-errors.rs:31:29 + | +LL | if let Some(&Some(x)) = Some(&Some(&mut 0)) { + | - ^^^^^^^^^^^^^^^^^^^ + | | + | data moved here + | move occurs because `x` has type `&mut u32`, which does not implement the `Copy` trait + | +help: consider removing the borrow + | +LL - if let Some(&Some(x)) = Some(&Some(&mut 0)) { +LL + if let Some(Some(x)) = Some(&Some(&mut 0)) { + | + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/borrowck-errors.rs:36:10 + | +LL | let &ref mut x = &0; + | ^^^^^^^^^ cannot borrow as mutable + +error: aborting due to 2 previous errors + +Some errors have detailed explanations: E0507, E0596. +For more information about an error, try `rustc --explain E0507`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2024.stderr index 30d2f9f3d702..208f6c8bbed0 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/borrowck-errors.structural2024.stderr @@ -1,5 +1,5 @@ error[E0507]: cannot move out of a shared reference - --> $DIR/borrowck-errors.rs:27:29 + --> $DIR/borrowck-errors.rs:31:29 | LL | if let Some(&Some(x)) = Some(&Some(&mut 0)) { | - ^^^^^^^^^^^^^^^^^^^ @@ -14,7 +14,7 @@ LL + if let Some(Some(x)) = Some(&Some(&mut 0)) { | error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/borrowck-errors.rs:32:10 + --> $DIR/borrowck-errors.rs:36:10 | LL | let &ref mut x = &0; | ^^^^^^^^^ cannot borrow as mutable diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.classic2024.stderr index fa95b2b5a575..6ddced3d1681 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.classic2024.stderr @@ -1,5 +1,5 @@ error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/mut-ref-mut.rs:14:13 + --> $DIR/mut-ref-mut.rs:18:13 | LL | let Foo(mut a) = &Foo(0); | ^^^^ @@ -9,7 +9,7 @@ LL | let Foo(mut a) = &Foo(0); = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/mut-ref-mut.rs:19:13 + --> $DIR/mut-ref-mut.rs:23:13 | LL | let Foo(mut a) = &mut Foo(0); | ^^^^ @@ -19,7 +19,7 @@ LL | let Foo(mut a) = &mut Foo(0); = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0308]: mismatched types - --> $DIR/mut-ref-mut.rs:24:10 + --> $DIR/mut-ref-mut.rs:28:10 | LL | let [&mut mut x] = &[&mut 0]; | ^^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.rs index fbd6514df73d..c8e988ad76d9 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.rs @@ -1,29 +1,33 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //@[stable2021] run-pass +//@[classic2021] run-pass +//@[structural2021] run-pass //! Test diagnostics for binding with `mut` when the default binding mode is by-ref. #![allow(incomplete_features, unused_assignments, unused_variables)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { struct Foo(u8); let Foo(mut a) = &Foo(0); //[classic2024,structural2024]~^ ERROR: binding cannot be both mutable and by-reference - #[cfg(stable2021)] { a = 42 } + #[cfg(any(stable2021, classic2021, structural2021))] { a = 42 } #[cfg(any(classic2024, structural2024))] { a = &42 } let Foo(mut a) = &mut Foo(0); //[classic2024,structural2024]~^ ERROR: binding cannot be both mutable and by-reference - #[cfg(stable2021)] { a = 42 } + #[cfg(any(stable2021, classic2021, structural2021))] { a = 42 } #[cfg(any(classic2024, structural2024))] { a = &mut 42 } let [&mut mut x] = &[&mut 0]; //[classic2024]~^ ERROR: mismatched types //[classic2024]~| cannot match inherited `&` with `&mut` pattern //[structural2024]~^^^ binding cannot be both mutable and by-reference - #[cfg(stable2021)] { x = 0 } + #[cfg(any(stable2021, classic2021, structural2021))] { x = 0 } } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.structural2024.stderr index fd82da70a18d..c0c0f966b680 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mut-ref-mut.structural2024.stderr @@ -1,5 +1,5 @@ error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/mut-ref-mut.rs:14:13 + --> $DIR/mut-ref-mut.rs:18:13 | LL | let Foo(mut a) = &Foo(0); | ^^^^ @@ -9,7 +9,7 @@ LL | let Foo(mut a) = &Foo(0); = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/mut-ref-mut.rs:19:13 + --> $DIR/mut-ref-mut.rs:23:13 | LL | let Foo(mut a) = &mut Foo(0); | ^^^^ @@ -19,7 +19,7 @@ LL | let Foo(mut a) = &mut Foo(0); = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/mut-ref-mut.rs:24:15 + --> $DIR/mut-ref-mut.rs:28:15 | LL | let [&mut mut x] = &[&mut 0]; | ^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr new file mode 100644 index 000000000000..e039884cdb14 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr @@ -0,0 +1,354 @@ +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:20:27 + | +LL | if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { + | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { +LL + if let Some(&mut Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:33:17 + | +LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { + | ^^^^^^^^^^^^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | types differ in mutability + | + = note: expected reference `&Option<{integer}>` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:38:23 + | +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { + | ^^^^^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:38:23 + | +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { +LL + if let Some(&Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:45:23 + | +LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { + | ^^^^^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:50:17 + | +LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { + | ^^^^^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` + | | + | expected `Option<&mut Option<{integer}>>`, found `&_` + | + = note: expected enum `Option<&mut Option<{integer}>>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:57:17 + | +LL | if let Some(&mut Some(x)) = &Some(Some(0)) { + | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` + | | + | expected `Option<{integer}>`, found `&mut _` + | + = note: expected enum `Option<{integer}>` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:66:11 + | +LL | let &[&mut x] = &&mut [0]; + | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:66:11 + | +LL | let &[&mut x] = &&mut [0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut x] = &&mut [0]; +LL + let &[x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:73:11 + | +LL | let &[&mut x] = &mut &mut [0]; + | ^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:73:11 + | +LL | let &[&mut x] = &mut &mut [0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut x] = &mut &mut [0]; +LL + let &[x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:80:11 + | +LL | let &[&mut ref x] = &&mut [0]; + | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:80:11 + | +LL | let &[&mut ref x] = &&mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut ref x] = &&mut [0]; +LL + let &[ref x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:87:11 + | +LL | let &[&mut ref x] = &mut &mut [0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:87:11 + | +LL | let &[&mut ref x] = &mut &mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut ref x] = &mut &mut [0]; +LL + let &[ref x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:94:11 + | +LL | let &[&mut mut x] = &&mut [0]; + | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:94:11 + | +LL | let &[&mut mut x] = &&mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut mut x] = &&mut [0]; +LL + let &[mut x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:101:11 + | +LL | let &[&mut mut x] = &mut &mut [0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:101:11 + | +LL | let &[&mut mut x] = &mut &mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut mut x] = &mut &mut [0]; +LL + let &[mut x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:122:11 + | +LL | let [&&mut x] = &[&mut 0]; + | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut x] = &[&mut 0]; +LL + let [&x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:129:11 + | +LL | let [&&mut x] = &mut [&mut 0]; + | ^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut x] = &mut [&mut 0]; +LL + let [&x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:136:11 + | +LL | let [&&mut ref x] = &[&mut 0]; + | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut ref x] = &[&mut 0]; +LL + let [&ref x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:143:11 + | +LL | let [&&mut ref x] = &mut [&mut 0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut ref x] = &mut [&mut 0]; +LL + let [&ref x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:150:11 + | +LL | let [&&mut mut x] = &[&mut 0]; + | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut mut x] = &[&mut 0]; +LL + let [&mut x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:157:11 + | +LL | let [&&mut mut x] = &mut [&mut 0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut mut x] = &mut [&mut 0]; +LL + let [&mut x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:172:15 + | +LL | let [&mut &x] = &[&mut 0]; + | ^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &x] = &[&mut 0]; +LL + let [&mut x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:178:15 + | +LL | let [&mut &ref x] = &[&mut 0]; + | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &ref x] = &[&mut 0]; +LL + let [&mut ref x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:184:15 + | +LL | let [&mut &(mut x)] = &[&mut 0]; + | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &(mut x)] = &[&mut 0]; +LL + let [&mut mut x)] = &[&mut 0]; + | + +error: aborting due to 21 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr index 6726a7263153..b98cfe337efe 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:12:17 + --> $DIR/pattern-errors.rs:14:17 | LL | if let Some(&mut x) = &Some(&mut 0) { | ^^^^^ @@ -12,7 +12,7 @@ LL + if let Some(&x) = &Some(&mut 0) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:18:17 + --> $DIR/pattern-errors.rs:20:17 | LL | if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { | ^^^^^ @@ -25,7 +25,7 @@ LL + if let Some(&Some(&x)) = &Some(&mut Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:24:22 + --> $DIR/pattern-errors.rs:26:22 | LL | if let Some(Some(&mut x)) = &Some(Some(&mut 0)) { | ^^^^^ @@ -38,7 +38,7 @@ LL + if let Some(Some(&x)) = &Some(Some(&mut 0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:31:17 + --> $DIR/pattern-errors.rs:33:17 | LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { | ^^^^^ @@ -51,7 +51,7 @@ LL + if let Some(&Some(&_)) = &Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:41:23 + --> $DIR/pattern-errors.rs:45:23 | LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { | ^^^^^ @@ -64,7 +64,7 @@ LL + if let Some(&Some(&_)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:51:17 + --> $DIR/pattern-errors.rs:57:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^ @@ -77,7 +77,7 @@ LL + if let Some(&Some(x)) = &Some(Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:147:10 + --> $DIR/pattern-errors.rs:166:10 | LL | let [&mut x] = &[&mut 0]; | ^^^^^ @@ -90,7 +90,7 @@ LL + let [&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:153:10 + --> $DIR/pattern-errors.rs:172:10 | LL | let [&mut &x] = &[&mut 0]; | ^^^^^ @@ -103,7 +103,7 @@ LL + let [&&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:159:10 + --> $DIR/pattern-errors.rs:178:10 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^ @@ -116,7 +116,7 @@ LL + let [&&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:165:10 + --> $DIR/pattern-errors.rs:184:10 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs index c07c2972cd05..4173b1819cba 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs @@ -1,170 +1,189 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //! Test cases for poorly-typed patterns in edition 2024 which are caught by HIR typeck. These must //! be separate from cases caught by MIR borrowck or the latter errors may not be emitted. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { if let Some(&mut x) = &Some(&mut 0) { //[classic2024]~^ ERROR: mismatched types //[classic2024]~| cannot match inherited `&` with `&mut` pattern - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(structural2024)] let _: &u32 = x; } if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { - //[stable2021,classic2024]~^ ERROR: mismatched types - //[stable2021]~| expected integer, found `&_` + //[stable2021,classic2021,structural2021,classic2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&_` //[classic2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(structural2024)] let _: u32 = x; } if let Some(Some(&mut x)) = &Some(Some(&mut 0)) { //[classic2024]~^ ERROR: mismatched types //[classic2024]~| cannot match inherited `&` with `&mut` pattern - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(structural2024)] let _: &u32 = x; } if let Some(&mut Some(&_)) = &Some(&Some(0)) { //~^ ERROR: mismatched types - //[stable2021]~| types differ in mutability + //[stable2021,classic2021,structural2021]~| types differ in mutability //[classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern } - if let Some(&Some(&mut _)) = &Some(&mut Some(0)) { - //[stable2021,structural2024]~^ ERROR: mismatched types + if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021]~| expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(classic2024)] let _: u32 = x; } if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { //~^ ERROR: mismatched types - //[stable2021]~| expected integer, found `&mut _` + //[stable2021,classic2021,structural2021]~| expected integer, found `&mut _` //[classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern } - if let Some(&Some(Some(&mut _))) = &Some(Some(&mut Some(0))) { - //[stable2021,structural2024]~^ ERROR: mismatched types + if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected `Option<&mut Option<{integer}>>`, found `&_` //[structural2024]~| cannot match inherited `&` with `&mut` pattern + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold on `classic2021` too } if let Some(&mut Some(x)) = &Some(Some(0)) { //~^ ERROR: mismatched types - //[stable2021]~| expected `Option<{integer}>`, found `&mut _` + //[stable2021,classic2021,structural2021]~| expected `Option<{integer}>`, found `&mut _` //[classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern + // TODO: the error on `classic2021` and `structural2021` should be the mutability mismatch } } fn structural_errors_0() { let &[&mut x] = &&mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too let &[&mut x] = &mut &mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too let &[&mut ref x] = &&mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: &u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: &u32 = x; // TODO: this should hold for `classic2021` too let &[&mut ref x] = &mut &mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: &u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: &u32 = x; // TODO: this should hold for `classic2021` too let &[&mut mut x] = &&mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too let &[&mut mut x] = &mut &mut [0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too + #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too } fn structural_errors_1() { let [&(mut x)] = &[&0]; //[structural2024]~^ ERROR: binding cannot be both mutable and by-reference - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(classic2024)] let _: &u32 = x; let [&(mut x)] = &mut [&0]; //[structural2024]~^ ERROR: binding cannot be both mutable and by-reference - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(classic2024)] let _: &u32 = x; } fn structural_errors_2() { let [&&mut x] = &[&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(classic2024)] let _: u32 = x; let [&&mut x] = &mut [&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(classic2024)] let _: u32 = x; let [&&mut ref x] = &[&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: &u32 = x; + #[cfg(classic2024)] let _: &u32 = x; let [&&mut ref x] = &mut [&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: &u32 = x; + #[cfg(classic2024)] let _: &u32 = x; let [&&mut mut x] = &[&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(classic2024)] let _: u32 = x; let [&&mut mut x] = &mut [&mut 0]; - //[stable2021,structural2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability + //[classic2021,structural2021] expected integer, found `&mut _` //[structural2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(classic2024)] let _: u32 = x; } fn classic_errors_0() { let [&mut x] = &[&mut 0]; //[classic2024]~^ ERROR: mismatched types //[classic2024]~| cannot match inherited `&` with `&mut` pattern - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(structural2024)] let _: &u32 = x; let [&mut &x] = &[&mut 0]; - //[stable2021,classic2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,classic2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&_` //[classic2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(structural2024)] let _: u32 = x; let [&mut &ref x] = &[&mut 0]; - //[stable2021,classic2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,classic2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&_` //[classic2024]~| cannot match inherited `&` with `&mut` pattern - let _: &u32 = x; + #[cfg(structural2024)] let _: &u32 = x; let [&mut &(mut x)] = &[&mut 0]; - //[stable2021,classic2024]~^ ERROR: mismatched types + //[stable2021,classic2021,structural2021,classic2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&_` //[classic2024]~| cannot match inherited `&` with `&mut` pattern - let _: u32 = x; + #[cfg(structural2024)] let _: u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr index ad19b122c20d..ad9541b71a02 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:18:27 + --> $DIR/pattern-errors.rs:20:27 | LL | if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` @@ -15,7 +15,7 @@ LL + if let Some(&mut Some(x)) = &Some(&mut Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:31:17 + --> $DIR/pattern-errors.rs:33:17 | LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { | ^^^^^^^^^^^^^ --------------- this expression has type `&Option<&Option<{integer}>>` @@ -26,9 +26,9 @@ LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:36:17 + --> $DIR/pattern-errors.rs:38:17 | -LL | if let Some(&Some(&mut _)) = &Some(&mut Some(0)) { +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { | ^^^^^^^^^^^^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` | | | types differ in mutability @@ -37,7 +37,7 @@ LL | if let Some(&Some(&mut _)) = &Some(&mut Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:41:23 + --> $DIR/pattern-errors.rs:45:23 | LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { | ^^^^^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` @@ -48,9 +48,9 @@ LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:46:17 + --> $DIR/pattern-errors.rs:50:17 | -LL | if let Some(&Some(Some(&mut _))) = &Some(Some(&mut Some(0))) { +LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { | ^^^^^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` | | | expected `Option<&mut Option<{integer}>>`, found `&_` @@ -59,7 +59,7 @@ LL | if let Some(&Some(Some(&mut _))) = &Some(Some(&mut Some(0))) { found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:51:17 + --> $DIR/pattern-errors.rs:57:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` @@ -70,7 +70,7 @@ LL | if let Some(&mut Some(x)) = &Some(Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:59:11 + --> $DIR/pattern-errors.rs:66:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -80,7 +80,7 @@ LL | let &[&mut x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:59:11 + --> $DIR/pattern-errors.rs:66:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^^ @@ -91,7 +91,7 @@ LL + let &[x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:65:9 + --> $DIR/pattern-errors.rs:73:9 | LL | let &[&mut x] = &mut &mut [0]; | ^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -102,7 +102,7 @@ LL | let &[&mut x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:71:11 + --> $DIR/pattern-errors.rs:80:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -112,7 +112,7 @@ LL | let &[&mut ref x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:71:11 + --> $DIR/pattern-errors.rs:80:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^^^^^^ @@ -123,7 +123,7 @@ LL + let &[ref x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:77:9 + --> $DIR/pattern-errors.rs:87:9 | LL | let &[&mut ref x] = &mut &mut [0]; | ^^^^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -134,7 +134,7 @@ LL | let &[&mut ref x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:83:11 + --> $DIR/pattern-errors.rs:94:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -144,7 +144,7 @@ LL | let &[&mut mut x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:83:11 + --> $DIR/pattern-errors.rs:94:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^^^^^^ @@ -155,7 +155,7 @@ LL + let &[mut x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:89:9 + --> $DIR/pattern-errors.rs:101:9 | LL | let &[&mut mut x] = &mut &mut [0]; | ^^^^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -166,7 +166,7 @@ LL | let &[&mut mut x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:109:10 + --> $DIR/pattern-errors.rs:122:10 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -177,7 +177,7 @@ LL | let [&&mut x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:115:10 + --> $DIR/pattern-errors.rs:129:10 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -188,7 +188,7 @@ LL | let [&&mut x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:121:10 + --> $DIR/pattern-errors.rs:136:10 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -199,7 +199,7 @@ LL | let [&&mut ref x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:127:10 + --> $DIR/pattern-errors.rs:143:10 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -210,7 +210,7 @@ LL | let [&&mut ref x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:133:10 + --> $DIR/pattern-errors.rs:150:10 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -221,7 +221,7 @@ LL | let [&&mut mut x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:139:10 + --> $DIR/pattern-errors.rs:157:10 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -232,7 +232,7 @@ LL | let [&&mut mut x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:153:15 + --> $DIR/pattern-errors.rs:172:15 | LL | let [&mut &x] = &[&mut 0]; | ^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -248,7 +248,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:159:15 + --> $DIR/pattern-errors.rs:178:15 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -264,7 +264,7 @@ LL + let [&mut ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:165:15 + --> $DIR/pattern-errors.rs:184:15 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr new file mode 100644 index 000000000000..e039884cdb14 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr @@ -0,0 +1,354 @@ +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:20:27 + | +LL | if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { + | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { +LL + if let Some(&mut Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:33:17 + | +LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { + | ^^^^^^^^^^^^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | types differ in mutability + | + = note: expected reference `&Option<{integer}>` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:38:23 + | +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { + | ^^^^^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:38:23 + | +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { +LL + if let Some(&Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:45:23 + | +LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { + | ^^^^^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:50:17 + | +LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { + | ^^^^^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` + | | + | expected `Option<&mut Option<{integer}>>`, found `&_` + | + = note: expected enum `Option<&mut Option<{integer}>>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:57:17 + | +LL | if let Some(&mut Some(x)) = &Some(Some(0)) { + | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` + | | + | expected `Option<{integer}>`, found `&mut _` + | + = note: expected enum `Option<{integer}>` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:66:11 + | +LL | let &[&mut x] = &&mut [0]; + | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:66:11 + | +LL | let &[&mut x] = &&mut [0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut x] = &&mut [0]; +LL + let &[x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:73:11 + | +LL | let &[&mut x] = &mut &mut [0]; + | ^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:73:11 + | +LL | let &[&mut x] = &mut &mut [0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut x] = &mut &mut [0]; +LL + let &[x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:80:11 + | +LL | let &[&mut ref x] = &&mut [0]; + | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:80:11 + | +LL | let &[&mut ref x] = &&mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut ref x] = &&mut [0]; +LL + let &[ref x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:87:11 + | +LL | let &[&mut ref x] = &mut &mut [0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:87:11 + | +LL | let &[&mut ref x] = &mut &mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut ref x] = &mut &mut [0]; +LL + let &[ref x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:94:11 + | +LL | let &[&mut mut x] = &&mut [0]; + | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:94:11 + | +LL | let &[&mut mut x] = &&mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut mut x] = &&mut [0]; +LL + let &[mut x] = &&mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:101:11 + | +LL | let &[&mut mut x] = &mut &mut [0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/pattern-errors.rs:101:11 + | +LL | let &[&mut mut x] = &mut &mut [0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let &[&mut mut x] = &mut &mut [0]; +LL + let &[mut x] = &mut &mut [0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:122:11 + | +LL | let [&&mut x] = &[&mut 0]; + | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut x] = &[&mut 0]; +LL + let [&x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:129:11 + | +LL | let [&&mut x] = &mut [&mut 0]; + | ^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut x] = &mut [&mut 0]; +LL + let [&x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:136:11 + | +LL | let [&&mut ref x] = &[&mut 0]; + | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut ref x] = &[&mut 0]; +LL + let [&ref x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:143:11 + | +LL | let [&&mut ref x] = &mut [&mut 0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut ref x] = &mut [&mut 0]; +LL + let [&ref x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:150:11 + | +LL | let [&&mut mut x] = &[&mut 0]; + | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut mut x] = &[&mut 0]; +LL + let [&mut x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:157:11 + | +LL | let [&&mut mut x] = &mut [&mut 0]; + | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +help: consider removing `&mut` from the pattern + | +LL - let [&&mut mut x] = &mut [&mut 0]; +LL + let [&mut x] = &mut [&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:172:15 + | +LL | let [&mut &x] = &[&mut 0]; + | ^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &x] = &[&mut 0]; +LL + let [&mut x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:178:15 + | +LL | let [&mut &ref x] = &[&mut 0]; + | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &ref x] = &[&mut 0]; +LL + let [&mut ref x] = &[&mut 0]; + | + +error[E0308]: mismatched types + --> $DIR/pattern-errors.rs:184:15 + | +LL | let [&mut &(mut x)] = &[&mut 0]; + | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &(mut x)] = &[&mut 0]; +LL + let [&mut mut x)] = &[&mut 0]; + | + +error: aborting due to 21 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr index fdf48a5a71b5..950d9f8b3511 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:31:17 + --> $DIR/pattern-errors.rs:33:17 | LL | if let Some(&mut Some(&_)) = &Some(&Some(0)) { | ^^^^^ @@ -12,20 +12,20 @@ LL + if let Some(&Some(&_)) = &Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:36:23 + --> $DIR/pattern-errors.rs:38:23 | -LL | if let Some(&Some(&mut _)) = &Some(&mut Some(0)) { +LL | if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { | ^^^^^ | = note: cannot match inherited `&` with `&mut` pattern help: replace this `&mut` pattern with `&` | -LL - if let Some(&Some(&mut _)) = &Some(&mut Some(0)) { -LL + if let Some(&Some(&_)) = &Some(&mut Some(0)) { +LL - if let Some(&Some(&mut x)) = &Some(&mut Some(0)) { +LL + if let Some(&Some(&x)) = &Some(&mut Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:41:23 + --> $DIR/pattern-errors.rs:45:23 | LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { | ^^^^^ @@ -38,20 +38,20 @@ LL + if let Some(&Some(&_)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:46:28 + --> $DIR/pattern-errors.rs:50:28 | -LL | if let Some(&Some(Some(&mut _))) = &Some(Some(&mut Some(0))) { +LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { | ^^^^^ | = note: cannot match inherited `&` with `&mut` pattern help: replace this `&mut` pattern with `&` | -LL - if let Some(&Some(Some(&mut _))) = &Some(Some(&mut Some(0))) { -LL + if let Some(&Some(Some(&_))) = &Some(Some(&mut Some(0))) { +LL - if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { +LL + if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:51:17 + --> $DIR/pattern-errors.rs:57:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^ @@ -64,7 +64,7 @@ LL + if let Some(&Some(x)) = &Some(Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:59:11 + --> $DIR/pattern-errors.rs:66:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^ @@ -77,7 +77,7 @@ LL + let &[&x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:65:11 + --> $DIR/pattern-errors.rs:73:11 | LL | let &[&mut x] = &mut &mut [0]; | ^^^^^ @@ -90,7 +90,7 @@ LL + let &[&x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:71:11 + --> $DIR/pattern-errors.rs:80:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^ @@ -103,7 +103,7 @@ LL + let &[&ref x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:77:11 + --> $DIR/pattern-errors.rs:87:11 | LL | let &[&mut ref x] = &mut &mut [0]; | ^^^^^ @@ -116,7 +116,7 @@ LL + let &[&ref x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:83:11 + --> $DIR/pattern-errors.rs:94:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^ @@ -129,7 +129,7 @@ LL + let &[&mut x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:89:11 + --> $DIR/pattern-errors.rs:101:11 | LL | let &[&mut mut x] = &mut &mut [0]; | ^^^^^ @@ -142,7 +142,7 @@ LL + let &[&mut x] = &mut &mut [0]; | error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/pattern-errors.rs:97:12 + --> $DIR/pattern-errors.rs:110:12 | LL | let [&(mut x)] = &[&0]; | ^^^^ @@ -152,7 +152,7 @@ LL | let [&(mut x)] = &[&0]; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/pattern-errors.rs:102:12 + --> $DIR/pattern-errors.rs:115:12 | LL | let [&(mut x)] = &mut [&0]; | ^^^^ @@ -162,7 +162,7 @@ LL | let [&(mut x)] = &mut [&0]; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:109:11 + --> $DIR/pattern-errors.rs:122:11 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^ @@ -175,7 +175,7 @@ LL + let [&&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:115:11 + --> $DIR/pattern-errors.rs:129:11 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^ @@ -188,7 +188,7 @@ LL + let [&&x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:121:11 + --> $DIR/pattern-errors.rs:136:11 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^ @@ -201,7 +201,7 @@ LL + let [&&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:127:11 + --> $DIR/pattern-errors.rs:143:11 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^ @@ -214,7 +214,7 @@ LL + let [&&ref x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:133:11 + --> $DIR/pattern-errors.rs:150:11 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^ @@ -227,7 +227,7 @@ LL + let [&&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:139:11 + --> $DIR/pattern-errors.rs:157:11 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2021.stderr new file mode 100644 index 000000000000..1dda2dca4a48 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2021.stderr @@ -0,0 +1,9 @@ +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 + | +LL | let [ref mut x] = &[0]; + | ^^^^^^^^^ cannot borrow as mutable + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2024.stderr index 56125be2d6fc..44cb005a748d 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.classic2024.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/ref-binding-on-inh-ref-errors.rs:54:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:58:10 | LL | let [&mut ref x] = &[&mut 0]; | ^^^^^ @@ -12,14 +12,14 @@ LL + let [&ref x] = &[&mut 0]; | error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 | LL | let [ref mut x] = &[0]; | ^^^^^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:9 | LL | let [ref mut x] = &[0]; | ^^^^^^^^^^^ this matches on type `&_` @@ -29,20 +29,20 @@ LL | let &[ref mut x] = &[0]; | + error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 | LL | let [ref mut x] = &[0]; | ^^^^^^^^^ cannot borrow as mutable error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:75:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:79:10 | LL | let [ref x] = &[0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:75:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:79:9 | LL | let [ref x] = &[0]; | ^^^^^^^ this matches on type `&_` @@ -52,14 +52,14 @@ LL | let &[ref x] = &[0]; | + error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:79:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:83:10 | LL | let [ref x] = &mut [0]; | ^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:79:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:83:9 | LL | let [ref x] = &mut [0]; | ^^^^^^^ this matches on type `&mut _` @@ -69,14 +69,14 @@ LL | let &mut [ref x] = &mut [0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:83:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:87:10 | LL | let [ref mut x] = &mut [0]; | ^^^^^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:83:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:87:9 | LL | let [ref mut x] = &mut [0]; | ^^^^^^^^^^^ this matches on type `&mut _` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.rs index 4e048570c33c..ea6f028fe4b8 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.rs @@ -1,35 +1,37 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //! Tests for errors from binding with `ref x` under a by-ref default binding mode in edition 2024. //! These can't be in the same body as tests for other errors, since they're emitted during THIR //! construction. The errors on stable edition 2021 Rust are unrelated. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] /// These only fail on the eat-inner variant of the new edition 2024 pattern typing rules. /// The eat-outer variant eats the inherited reference, so binding with `ref` isn't a problem. fn errors_from_eating_the_real_reference() { let [&ref x] = &[&0]; //[structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; #[cfg(classic2024)] let _: &&u32 = x; let [&ref x] = &mut [&0]; //[structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; #[cfg(classic2024)] let _: &&u32 = x; let [&mut ref x] = &mut [&mut 0]; //[structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; #[cfg(classic2024)] let _: &&mut u32 = x; let [&mut ref mut x] = &mut [&mut 0]; //[structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &mut u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &mut u32 = x; #[cfg(classic2024)] let _: &mut &mut u32 = x; } @@ -40,12 +42,14 @@ fn errors_from_eating_the_real_reference_caught_in_hir_typeck_on_stable() { //[stable2021]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability //[structural2024]~^^^ ERROR: binding modifiers may only be written when the default binding mode is `move` + #[cfg(any(classic2021, structural2021))] let _: &u32 = x; #[cfg(classic2024)] let _: &&mut u32 = x; let [&ref x] = &mut [&mut 0]; //[stable2021]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability //[structural2024]~^^^ ERROR: binding modifiers may only be written when the default binding mode is `move` + #[cfg(any(classic2021, structural2021))] let _: &u32 = x; #[cfg(classic2024)] let _: &&mut u32 = x; } @@ -55,7 +59,7 @@ fn errors_dependent_on_eating_order_caught_in_hir_typeck_when_eating_outer() { //[classic2024]~^ ERROR: mismatched types //[classic2024]~| cannot match inherited `&` with `&mut` pattern //[structural2024]~^^^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; } /// These should be errors in all editions. In edition 2024, they should be caught by the pattern @@ -74,13 +78,13 @@ fn borrowck_errors_in_old_editions() { pub fn main() { let [ref x] = &[0]; //[classic2024,structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; let [ref x] = &mut [0]; //[classic2024,structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &u32 = x; let [ref mut x] = &mut [0]; //[classic2024,structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` - #[cfg(stable2021)] let _: &mut u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: &mut u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.stable2021.stderr index 26095d846057..2ec6650dd7d0 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.stable2021.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/ref-binding-on-inh-ref-errors.rs:39:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:41:10 | LL | let [&ref x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -15,7 +15,7 @@ LL + let [ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/ref-binding-on-inh-ref-errors.rs:45:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:48:10 | LL | let [&ref x] = &mut [&mut 0]; | ^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -31,7 +31,7 @@ LL + let [ref x] = &mut [&mut 0]; | error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 | LL | let [ref mut x] = &[0]; | ^^^^^^^^^ cannot borrow as mutable diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2021.stderr new file mode 100644 index 000000000000..1dda2dca4a48 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2021.stderr @@ -0,0 +1,9 @@ +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 + | +LL | let [ref mut x] = &[0]; + | ^^^^^^^^^ cannot borrow as mutable + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2024.stderr index 31930e8c0337..6f62ad06cc49 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-binding-on-inh-ref-errors.structural2024.stderr @@ -1,12 +1,12 @@ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:15:11 + --> $DIR/ref-binding-on-inh-ref-errors.rs:17:11 | LL | let [&ref x] = &[&0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:15:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:17:9 | LL | let [&ref x] = &[&0]; | ^^^^^^^^ this matches on type `&_` @@ -16,14 +16,14 @@ LL | let &[&ref x] = &[&0]; | + error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:20:11 + --> $DIR/ref-binding-on-inh-ref-errors.rs:22:11 | LL | let [&ref x] = &mut [&0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:20:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:22:9 | LL | let [&ref x] = &mut [&0]; | ^^^^^^^^ this matches on type `&mut _` @@ -33,14 +33,14 @@ LL | let &mut [&ref x] = &mut [&0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:25:15 + --> $DIR/ref-binding-on-inh-ref-errors.rs:27:15 | LL | let [&mut ref x] = &mut [&mut 0]; | ^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:25:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:27:9 | LL | let [&mut ref x] = &mut [&mut 0]; | ^^^^^^^^^^^^ this matches on type `&mut _` @@ -50,14 +50,14 @@ LL | let &mut [&mut ref x] = &mut [&mut 0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:30:15 + --> $DIR/ref-binding-on-inh-ref-errors.rs:32:15 | LL | let [&mut ref mut x] = &mut [&mut 0]; | ^^^^^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:30:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:32:9 | LL | let [&mut ref mut x] = &mut [&mut 0]; | ^^^^^^^^^^^^^^^^ this matches on type `&mut _` @@ -67,14 +67,14 @@ LL | let &mut [&mut ref mut x] = &mut [&mut 0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:39:11 + --> $DIR/ref-binding-on-inh-ref-errors.rs:41:11 | LL | let [&ref x] = &[&mut 0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:39:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:41:9 | LL | let [&ref x] = &[&mut 0]; | ^^^^^^^^ this matches on type `&_` @@ -84,14 +84,14 @@ LL | let &[&ref x] = &[&mut 0]; | + error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:45:11 + --> $DIR/ref-binding-on-inh-ref-errors.rs:48:11 | LL | let [&ref x] = &mut [&mut 0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:45:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:48:9 | LL | let [&ref x] = &mut [&mut 0]; | ^^^^^^^^ this matches on type `&mut _` @@ -101,14 +101,14 @@ LL | let &mut [&ref x] = &mut [&mut 0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:54:15 + --> $DIR/ref-binding-on-inh-ref-errors.rs:58:15 | LL | let [&mut ref x] = &[&mut 0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:54:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:58:9 | LL | let [&mut ref x] = &[&mut 0]; | ^^^^^^^^^^^^ this matches on type `&_` @@ -118,14 +118,14 @@ LL | let &[&mut ref x] = &[&mut 0]; | + error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 | LL | let [ref mut x] = &[0]; | ^^^^^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:9 | LL | let [ref mut x] = &[0]; | ^^^^^^^^^^^ this matches on type `&_` @@ -135,20 +135,20 @@ LL | let &[ref mut x] = &[0]; | + error[E0596]: cannot borrow data in a `&` reference as mutable - --> $DIR/ref-binding-on-inh-ref-errors.rs:67:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:71:10 | LL | let [ref mut x] = &[0]; | ^^^^^^^^^ cannot borrow as mutable error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:75:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:79:10 | LL | let [ref x] = &[0]; | ^^^ binding modifier not allowed under `ref` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:75:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:79:9 | LL | let [ref x] = &[0]; | ^^^^^^^ this matches on type `&_` @@ -158,14 +158,14 @@ LL | let &[ref x] = &[0]; | + error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:79:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:83:10 | LL | let [ref x] = &mut [0]; | ^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:79:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:83:9 | LL | let [ref x] = &mut [0]; | ^^^^^^^ this matches on type `&mut _` @@ -175,14 +175,14 @@ LL | let &mut [ref x] = &mut [0]; | ++++ error: binding modifiers may only be written when the default binding mode is `move` - --> $DIR/ref-binding-on-inh-ref-errors.rs:83:10 + --> $DIR/ref-binding-on-inh-ref-errors.rs:87:10 | LL | let [ref mut x] = &mut [0]; | ^^^^^^^ binding modifier not allowed under `ref mut` default binding mode | = note: for more information, see note: matching on a reference type with a non-reference pattern changes the default binding mode - --> $DIR/ref-binding-on-inh-ref-errors.rs:83:9 + --> $DIR/ref-binding-on-inh-ref-errors.rs:87:9 | LL | let [ref mut x] = &mut [0]; | ^^^^^^^^^^^ this matches on type `&mut _` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr new file mode 100644 index 000000000000..379ba4a11c55 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr @@ -0,0 +1,63 @@ +error[E0308]: mismatched types + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 + | +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 + | +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:22:31 + | +LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:31:15 + | +LL | let &pat!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:19 + | +LL | let &(ref mut a, ref mut b) = &mut (true, false); + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:30 + | +LL | let &(ref mut a, ref mut b) = &mut (true, false); + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:43:11 + | +LL | let &[x] = &mut &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: aborting due to 7 previous errors + +Some errors have detailed explanations: E0308, E0596. +For more information about an error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed index c01784d5076b..105313a14896 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed @@ -1,5 +1,7 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //@[classic2024] run-rustfix @@ -7,19 +9,19 @@ //! Tests for `&` patterns matched against `&mut` reference types where the inner pattern attempts //! to bind by mutable reference. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { - //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } if let &mut Some(Some(ref mut x)) = &mut Some(Some(0)) { //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } @@ -28,18 +30,18 @@ pub fn main() { } let &mut pat!(x) = &mut 0; //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; let &mut (ref mut a, ref mut b) = &mut (true, false); //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern - //[classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut bool = a; let _: &mut bool = b; let &mut [x] = &mut &mut [0]; //[stable2021]~^ ERROR: mismatched types - //[classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr index 5e98b77be40c..93ddf4d60fd5 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr @@ -1,13 +1,13 @@ error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:14:31 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types | - ^ | | | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:20:31 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:22:31 | LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { | - ^ @@ -15,7 +15,7 @@ LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:29:15 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:31:15 | LL | let &pat!(x) = &mut 0; | - ^ @@ -23,7 +23,7 @@ LL | let &pat!(x) = &mut 0; | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:34:19 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:19 | LL | let &(ref mut a, ref mut b) = &mut (true, false); | - ^ @@ -31,7 +31,7 @@ LL | let &(ref mut a, ref mut b) = &mut (true, false); | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:34:30 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:30 | LL | let &(ref mut a, ref mut b) = &mut (true, false); | - ^ @@ -39,7 +39,7 @@ LL | let &(ref mut a, ref mut b) = &mut (true, false); | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:41:11 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:43:11 | LL | let &[x] = &mut &mut [0]; | - ^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs index fe40dabb5539..800aca06396c 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs @@ -1,5 +1,7 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //@[classic2024] run-rustfix @@ -7,19 +9,19 @@ //! Tests for `&` patterns matched against `&mut` reference types where the inner pattern attempts //! to bind by mutable reference. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { - //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } @@ -28,18 +30,18 @@ pub fn main() { } let &pat!(x) = &mut 0; //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; let &(ref mut a, ref mut b) = &mut (true, false); //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern - //[classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut bool = a; let _: &mut bool = b; let &[x] = &mut &mut [0]; //[stable2021]~^ ERROR: mismatched types - //[classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr index 72c6c05e1844..9a3b896d4f84 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr @@ -1,7 +1,7 @@ error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:14:17 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` | | | expected `Option<{integer}>`, found `&_` @@ -10,7 +10,7 @@ LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:20:12 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:22:12 | LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { | ^^^^^^^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` @@ -21,7 +21,7 @@ LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:29:9 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:31:9 | LL | let &pat!(x) = &mut 0; | ^^^^^^^^ ------ this expression has type `&mut {integer}` @@ -32,7 +32,7 @@ LL | let &pat!(x) = &mut 0; found reference `&_` error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:34:9 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:9 | LL | let &(ref mut a, ref mut b) = &mut (true, false); | ^^^^^^^^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut (bool, bool)` @@ -43,7 +43,7 @@ LL | let &(ref mut a, ref mut b) = &mut (true, false); found reference `&_` error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:41:9 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:43:9 | LL | let &[x] = &mut &mut [0]; | ^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr new file mode 100644 index 000000000000..1a138494b85a --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr @@ -0,0 +1,55 @@ +error[E0308]: mismatched types + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 + | +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 + | +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:22:31 + | +LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:31:15 + | +LL | let &pat!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:19 + | +LL | let &(ref mut a, ref mut b) = &mut (true, false); + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:30 + | +LL | let &(ref mut a, ref mut b) = &mut (true, false); + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0308, E0596. +For more information about an error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed index 4ee849b38c53..78fbffdb2703 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed @@ -1,5 +1,7 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //@[classic2024] run-rustfix @@ -7,19 +9,19 @@ //! Tests for `&` patterns matched against `&mut` reference types where the inner pattern attempts //! to bind by mutable reference. #![allow(incomplete_features)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { - //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types + //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } if let &mut Some(Some(ref mut x)) = &mut Some(Some(0)) { //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } @@ -28,18 +30,18 @@ pub fn main() { } let &mut pat!(x) = &mut 0; //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; let &mut (ref mut a, ref mut b) = &mut (true, false); //[stable2021]~^ ERROR: mismatched types - //[classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern - //[classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,structural2021,classic2024,structural2024]~| ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut bool = a; let _: &mut bool = b; let &[x] = &mut &mut [0]; //[stable2021]~^ ERROR: mismatched types - //[classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern + //[classic2021,classic2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr index 69cb6c438b6e..11e39abb860b 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr @@ -1,13 +1,13 @@ error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:14:31 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types | - ^ | | | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:20:31 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:22:31 | LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { | - ^ @@ -15,7 +15,7 @@ LL | if let &Some(Some(ref mut x)) = &mut Some(Some(0)) { | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:29:15 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:31:15 | LL | let &pat!(x) = &mut 0; | - ^ @@ -23,7 +23,7 @@ LL | let &pat!(x) = &mut 0; | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:34:19 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:19 | LL | let &(ref mut a, ref mut b) = &mut (true, false); | - ^ @@ -31,7 +31,7 @@ LL | let &(ref mut a, ref mut b) = &mut (true, false); | help: replace this `&` with `&mut`: `&mut` error[E0596]: cannot borrow as mutable inside an `&` pattern - --> $DIR/ref-mut-inside-shared-ref-pat.rs:34:30 + --> $DIR/ref-mut-inside-shared-ref-pat.rs:36:30 | LL | let &(ref mut a, ref mut b) = &mut (true, false); | - ^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr new file mode 100644 index 000000000000..c9195dbfbf5f --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr @@ -0,0 +1,254 @@ +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:32:23 + | +LL | if let Some(Some(&&x)) = &Some(Some(&0)) { + | ^^ --------------- this expression has type `&Option>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(Some(&&x)) = &Some(Some(&0)) { +LL + if let Some(Some(&x)) = &Some(Some(&0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:39:22 + | +LL | if let Some(Some(&x)) = &Some(&Some(0)) { + | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(Some(&x)) = &Some(&Some(0)) { +LL + if let Some(Some(x)) = &Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:44:17 + | +LL | if let Some(&Some(x)) = &Some(Some(0)) { + | ^^^^^^^^ -------------- this expression has type `&Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:49:22 + | +LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { + | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:49:22 + | +LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { +LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:63:23 + | +LL | if let Some(&Some(&x)) = &Some(&Some(0)) { + | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &Some(&Some(0)) { +LL + if let Some(&Some(x)) = &Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:70:17 + | +LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { + | ^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` + | | + | expected `Option<&mut Option<{integer}>>`, found `&_` + | + = note: expected enum `Option<&mut Option<{integer}>>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:75:17 + | +LL | if let Some(&Some(x)) = &mut Some(Some(0)) { + | ^^^^^^^^ ------------------ this expression has type `&mut Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:82:23 + | +LL | if let Some(&Some(&x)) = &Some(&mut Some(0)) { + | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &Some(&mut Some(0)) { +LL + if let Some(&Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:88:23 + | +LL | if let Some(&Some(&x)) = &mut Some(&Some(0)) { + | ^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &mut Some(&Some(0)) { +LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:96:10 + | +LL | let [&mut x] = &mut [&0]; + | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:96:10 + | +LL | let [&mut x] = &mut [&0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut x] = &mut [&0]; +LL + let [x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:102:10 + | +LL | let [&mut ref x] = &mut [&0]; + | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:102:10 + | +LL | let [&mut ref x] = &mut [&0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref x] = &mut [&0]; +LL + let [ref x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:108:10 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:108:10 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref mut x] = &mut [&0]; +LL + let [ref mut x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:114:10 + | +LL | let [&mut mut x] = &mut [&0]; + | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:114:10 + | +LL | let [&mut mut x] = &mut [&0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut mut x] = &mut [&0]; +LL + let [mut x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:120:10 + | +LL | let [&mut &x] = &mut [&0]; + | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:126:10 + | +LL | let [&mut &ref x] = &mut [&0]; + | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:132:10 + | +LL | let [&mut &(mut x)] = &mut [&0]; + | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error: aborting due to 16 previous errors + +For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs index 3114b9d3bf8c..e61aa5f35c9a 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs @@ -1,5 +1,7 @@ -//@ revisions: stable2021 classic2024 structural2024 +//@ revisions: stable2021 classic2021 structural2021 classic2024 structural2024 //@[stable2021] edition: 2021 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 //@[classic2024] edition: 2024 //@[structural2024] edition: 2024 //@[classic2024] run-pass @@ -7,8 +9,8 @@ //! Test cases for well-typed patterns in edition 2024. These are in their own file to ensure we //! pass both HIR typeck and MIR borrowck, as we may skip the latter if grouped with failing tests. #![allow(incomplete_features, unused_mut)] -#![cfg_attr(classic2024, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural2024, feature(ref_pat_eat_one_layer_2024_structural))] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { // Tests not using match ergonomics. These should always succeed with the same bindings. @@ -18,110 +20,118 @@ pub fn main() { // Tests for differences in how many layers of reference are eaten by reference patterns if let Some(Some(&x)) = &Some(Some(&0)) { - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; } if let Some(&Some(x)) = &mut Some(&Some(0)) { // This additionally tests that `&` patterns can eat inherited `&mut` refs. // This is possible on stable when the real reference being eaten is of a `&` type. - #[cfg(stable2021)] let _: u32 = x; + #[cfg(any(stable2021, classic2021, structural2021))] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; } if let Some(Some(&&x)) = &Some(Some(&0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected integer, found `&_` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; } // Tests for eating a lone inherited reference if let Some(Some(&x)) = &Some(&Some(0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected integer, found `&_` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` } if let Some(&Some(x)) = &Some(Some(0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected `Option<{integer}>`, found `&_` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected `Option<{integer}>`, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` } if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected integer, found `&mut _` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&mut _` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` } // Tests for `&` patterns matching real `&mut` reference types if let Some(&Some(&x)) = Some(&Some(&mut 0)) { //[stable2021]~^ mismatched types //[stable2021]~| types differ in mutability - let _: u32 = x; + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } // Tests for eating only one layer and also eating a lone inherited reference if let Some(&Some(&x)) = &Some(&Some(0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected integer, found `&_` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; } // Tests for `&` matching a lone inherited possibly-`&mut` reference if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { - //[stable2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~^ mismatched types //[stable2021]~| expected `Option<&mut Option<{integer}>>`, found `&_` - let _: u32 = x; + #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` } if let Some(&Some(x)) = &mut Some(Some(0)) { - //[stable2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~^ mismatched types //[stable2021]~| expected `Option<{integer}>`, found `&_` - let _: u32 = x; + #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` } // Tests eating one layer, eating a lone inherited ref, and `&` eating `&mut` (realness varies) if let Some(&Some(&x)) = &Some(&mut Some(0)) { - //[stable2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~^ mismatched types //[stable2021]~| types differ in mutability - let _: u32 = x; + //[classic2021,structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; } if let Some(&Some(&x)) = &mut Some(&Some(0)) { - //[stable2021]~^ mismatched types - //[stable2021]~| expected integer, found `&_` - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; } // Tests for eat-inner rulesets matching on the outer reference if matching on the inner // reference causes a mutability mismatch, i.e. `Deref(EatInner, FallbackToOuter)`: let [&mut x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: &u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: on `structural2021` `x` should have type `u32` + #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut ref x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: &&u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: on `structural2021` `x` should have type `&u32` + #[cfg(any(classic2024, structural2024))] let _: &&u32 = x; let [&mut ref mut x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: &mut &u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: this should be a mut borrow behind shared borrow error on `structural2021` + #[cfg(any(classic2024, structural2024))] let _: &mut &u32 = x; let [&mut mut x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: &u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: on `structural2021` `x` should have type `u32` + #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: [structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; let [&mut &ref x] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: &u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: [structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &(mut x)] = &mut [&0]; - //[stable2021]~^ mismatched types - //[stable2021]~| types differ in mutability - let _: u32 = x; + //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021,classic2021,structural2021]~| types differ in mutability + // TODO: [structural2021]~| expected integer, found `&_` + #[cfg(any(classic2024, structural2024))] let _: u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr index b1a8024397bd..fb99e3983e8c 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr @@ -1,5 +1,5 @@ error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:30:23 + --> $DIR/well-typed-edition-2024.rs:32:23 | LL | if let Some(Some(&&x)) = &Some(Some(&0)) { | ^^ --------------- this expression has type `&Option>` @@ -15,7 +15,7 @@ LL + if let Some(Some(&x)) = &Some(Some(&0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:37:22 + --> $DIR/well-typed-edition-2024.rs:39:22 | LL | if let Some(Some(&x)) = &Some(&Some(0)) { | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` @@ -31,7 +31,7 @@ LL + if let Some(Some(x)) = &Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:42:17 + --> $DIR/well-typed-edition-2024.rs:44:17 | LL | if let Some(&Some(x)) = &Some(Some(0)) { | ^^^^^^^^ -------------- this expression has type `&Option>` @@ -42,7 +42,7 @@ LL | if let Some(&Some(x)) = &Some(Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:47:22 + --> $DIR/well-typed-edition-2024.rs:49:22 | LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` @@ -52,7 +52,7 @@ LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:47:22 + --> $DIR/well-typed-edition-2024.rs:49:22 | LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { | ^^^^^^ @@ -63,7 +63,7 @@ LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:54:23 + --> $DIR/well-typed-edition-2024.rs:56:23 | LL | if let Some(&Some(&x)) = Some(&Some(&mut 0)) { | ^^ ------------------- this expression has type `Option<&Option<&mut {integer}>>` @@ -79,7 +79,7 @@ LL + if let Some(&Some(x)) = Some(&Some(&mut 0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:61:23 + --> $DIR/well-typed-edition-2024.rs:63:23 | LL | if let Some(&Some(&x)) = &Some(&Some(0)) { | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` @@ -95,7 +95,7 @@ LL + if let Some(&Some(x)) = &Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:68:17 + --> $DIR/well-typed-edition-2024.rs:70:17 | LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { | ^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` @@ -106,7 +106,7 @@ LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { found reference `&_` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:73:17 + --> $DIR/well-typed-edition-2024.rs:75:17 | LL | if let Some(&Some(x)) = &mut Some(Some(0)) { | ^^^^^^^^ ------------------ this expression has type `&mut Option>` @@ -117,7 +117,7 @@ LL | if let Some(&Some(x)) = &mut Some(Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:80:17 + --> $DIR/well-typed-edition-2024.rs:82:17 | LL | if let Some(&Some(&x)) = &Some(&mut Some(0)) { | ^^^^^^^^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` @@ -128,7 +128,7 @@ LL | if let Some(&Some(&x)) = &Some(&mut Some(0)) { found reference `&_` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:85:23 + --> $DIR/well-typed-edition-2024.rs:88:23 | LL | if let Some(&Some(&x)) = &mut Some(&Some(0)) { | ^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` @@ -144,7 +144,7 @@ LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:93:10 + --> $DIR/well-typed-edition-2024.rs:96:10 | LL | let [&mut x] = &mut [&0]; | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -154,7 +154,7 @@ LL | let [&mut x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:93:10 + --> $DIR/well-typed-edition-2024.rs:96:10 | LL | let [&mut x] = &mut [&0]; | ^^^^^^ @@ -165,7 +165,7 @@ LL + let [x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:98:10 + --> $DIR/well-typed-edition-2024.rs:102:10 | LL | let [&mut ref x] = &mut [&0]; | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -175,7 +175,7 @@ LL | let [&mut ref x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:98:10 + --> $DIR/well-typed-edition-2024.rs:102:10 | LL | let [&mut ref x] = &mut [&0]; | ^^^^^^^^^^ @@ -186,7 +186,7 @@ LL + let [ref x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:103:10 + --> $DIR/well-typed-edition-2024.rs:108:10 | LL | let [&mut ref mut x] = &mut [&0]; | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -196,7 +196,7 @@ LL | let [&mut ref mut x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:103:10 + --> $DIR/well-typed-edition-2024.rs:108:10 | LL | let [&mut ref mut x] = &mut [&0]; | ^^^^^^^^^^^^^^ @@ -207,7 +207,7 @@ LL + let [ref mut x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:108:10 + --> $DIR/well-typed-edition-2024.rs:114:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -217,7 +217,7 @@ LL | let [&mut mut x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:108:10 + --> $DIR/well-typed-edition-2024.rs:114:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ @@ -228,7 +228,7 @@ LL + let [mut x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:113:10 + --> $DIR/well-typed-edition-2024.rs:120:10 | LL | let [&mut &x] = &mut [&0]; | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -239,7 +239,7 @@ LL | let [&mut &x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:118:10 + --> $DIR/well-typed-edition-2024.rs:126:10 | LL | let [&mut &ref x] = &mut [&0]; | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -250,7 +250,7 @@ LL | let [&mut &ref x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:123:10 + --> $DIR/well-typed-edition-2024.rs:132:10 | LL | let [&mut &(mut x)] = &mut [&0]; | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr new file mode 100644 index 000000000000..c9195dbfbf5f --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr @@ -0,0 +1,254 @@ +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:32:23 + | +LL | if let Some(Some(&&x)) = &Some(Some(&0)) { + | ^^ --------------- this expression has type `&Option>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(Some(&&x)) = &Some(Some(&0)) { +LL + if let Some(Some(&x)) = &Some(Some(&0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:39:22 + | +LL | if let Some(Some(&x)) = &Some(&Some(0)) { + | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(Some(&x)) = &Some(&Some(0)) { +LL + if let Some(Some(x)) = &Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:44:17 + | +LL | if let Some(&Some(x)) = &Some(Some(0)) { + | ^^^^^^^^ -------------- this expression has type `&Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:49:22 + | +LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { + | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` + | | + | expected integer, found `&mut _` + | + = note: expected type `{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:49:22 + | +LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { +LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:63:23 + | +LL | if let Some(&Some(&x)) = &Some(&Some(0)) { + | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &Some(&Some(0)) { +LL + if let Some(&Some(x)) = &Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:70:17 + | +LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { + | ^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` + | | + | expected `Option<&mut Option<{integer}>>`, found `&_` + | + = note: expected enum `Option<&mut Option<{integer}>>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:75:17 + | +LL | if let Some(&Some(x)) = &mut Some(Some(0)) { + | ^^^^^^^^ ------------------ this expression has type `&mut Option>` + | | + | expected `Option<{integer}>`, found `&_` + | + = note: expected enum `Option<{integer}>` + found reference `&_` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:82:23 + | +LL | if let Some(&Some(&x)) = &Some(&mut Some(0)) { + | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &Some(&mut Some(0)) { +LL + if let Some(&Some(x)) = &Some(&mut Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:88:23 + | +LL | if let Some(&Some(&x)) = &mut Some(&Some(0)) { + | ^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - if let Some(&Some(&x)) = &mut Some(&Some(0)) { +LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:96:10 + | +LL | let [&mut x] = &mut [&0]; + | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:96:10 + | +LL | let [&mut x] = &mut [&0]; + | ^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut x] = &mut [&0]; +LL + let [x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:102:10 + | +LL | let [&mut ref x] = &mut [&0]; + | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:102:10 + | +LL | let [&mut ref x] = &mut [&0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref x] = &mut [&0]; +LL + let [ref x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:108:10 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:108:10 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref mut x] = &mut [&0]; +LL + let [ref mut x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:114:10 + | +LL | let [&mut mut x] = &mut [&0]; + | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:114:10 + | +LL | let [&mut mut x] = &mut [&0]; + | ^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut mut x] = &mut [&0]; +LL + let [mut x] = &mut [&0]; + | + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:120:10 + | +LL | let [&mut &x] = &mut [&0]; + | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:126:10 + | +LL | let [&mut &ref x] = &mut [&0]; + | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:132:10 + | +LL | let [&mut &(mut x)] = &mut [&0]; + | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` + +error: aborting due to 16 previous errors + +For more information about this error, try `rustc --explain E0308`. From 3e77657312dbd7da6a398825860b01e838893b3c Mon Sep 17 00:00:00 2001 From: dianne Date: Thu, 23 Jan 2025 00:21:17 -0800 Subject: [PATCH 096/255] remove old edition-2021-specific tests These are superseded by the old-edition revisions on the shared tests. --- .../ref_pat_eat_one_layer_2021.rs | 17 --- .../ref_pat_eat_one_layer_2021_fail.rs | 37 ----- .../ref_pat_eat_one_layer_2021_fail.stderr | 133 ------------------ 3 files changed, 187 deletions(-) delete mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021.rs delete mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.rs delete mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.stderr diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021.rs deleted file mode 100644 index ab3264704acc..000000000000 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021.rs +++ /dev/null @@ -1,17 +0,0 @@ -//@ run-pass -//@ edition: 2021 -//@ revisions: classic structural -#![allow(incomplete_features)] -#![cfg_attr(classic, feature(ref_pat_eat_one_layer_2024))] -#![cfg_attr(structural, feature(ref_pat_eat_one_layer_2024_structural))] - -pub fn main() { - #[cfg(structural)] - if let &Some(Some(x)) = &Some(&mut Some(0)) { - let _: &u32 = x; - } - - if let Some(&x) = Some(&mut 0) { - let _: u32 = x; - } -} diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.rs deleted file mode 100644 index d28567f2859a..000000000000 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.rs +++ /dev/null @@ -1,37 +0,0 @@ -//@ edition: 2021 -#![allow(incomplete_features)] -#![feature(ref_pat_eat_one_layer_2024)] -pub fn main() { - if let Some(Some(&x)) = &Some(&Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(Some(&x)) = &Some(Some(&0)) { - let _: &u32 = x; - //~^ ERROR: mismatched types - } - if let Some(Some(&&x)) = &Some(Some(&0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(&Some(x)) = &Some(Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(Some(&x)) = &Some(&Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } - if let Some(&Some(&mut x)) = &mut Some(&Some(0)) { - //~^ ERROR: mismatched types - let _: u32 = x; - } -} diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.stderr deleted file mode 100644 index 0158ed0f4235..000000000000 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref_pat_eat_one_layer_2021_fail.stderr +++ /dev/null @@ -1,133 +0,0 @@ -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:5:22 - | -LL | if let Some(Some(&x)) = &Some(&Some(0)) { - | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(Some(&x)) = &Some(&Some(0)) { -LL + if let Some(Some(x)) = &Some(&Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:10:23 - | -LL | let _: &u32 = x; - | ---- ^ expected `&u32`, found integer - | | - | expected due to this - | -help: consider borrowing here - | -LL | let _: &u32 = &x; - | + - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:13:23 - | -LL | if let Some(Some(&&x)) = &Some(Some(&0)) { - | ^^ --------------- this expression has type `&Option>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(Some(&&x)) = &Some(Some(&0)) { -LL + if let Some(Some(&x)) = &Some(Some(&0)) { - | - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:17:17 - | -LL | if let Some(&Some(x)) = &Some(Some(0)) { - | ^^^^^^^^ -------------- this expression has type `&Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:21:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:21:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { -LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:25:22 - | -LL | if let Some(Some(&x)) = &Some(&Some(0)) { - | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(Some(&x)) = &Some(&Some(0)) { -LL + if let Some(Some(x)) = &Some(&Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:29:27 - | -LL | if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { - | ^^ ------------------- this expression has type `&Option<&mut Option<{integer}>>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(&mut Some(&x)) = &Some(&mut Some(0)) { -LL + if let Some(&mut Some(x)) = &Some(&mut Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:33:23 - | -LL | if let Some(&Some(&mut x)) = &mut Some(&Some(0)) { - | ^^^^^^ ------------------- this expression has type `&mut Option<&Option<{integer}>>` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/ref_pat_eat_one_layer_2021_fail.rs:33:23 - | -LL | if let Some(&Some(&mut x)) = &mut Some(&Some(0)) { - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - if let Some(&Some(&mut x)) = &mut Some(&Some(0)) { -LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { - | - -error: aborting due to 8 previous errors - -For more information about this error, try `rustc --explain E0308`. From 8dc64a405d53f30fef4a080afb68d10e59318a3d Mon Sep 17 00:00:00 2001 From: dianne Date: Sat, 25 Jan 2025 23:32:12 -0800 Subject: [PATCH 097/255] "classic2021" and "structural2021" rulesets: add eat-inherited-ref-alone deref rules --- compiler/rustc_hir_typeck/src/pat.rs | 39 +++- .../pattern-errors.classic2021.stderr | 167 ++---------------- .../pattern-errors.classic2024.stderr | 10 +- .../experimental/pattern-errors.rs | 54 +++--- .../pattern-errors.stable2021.stderr | 38 ++-- .../pattern-errors.structural2021.stderr | 154 ++++++---------- .../pattern-errors.structural2024.stderr | 30 ++-- ...t-inside-shared-ref-pat.classic2021.stderr | 18 +- ...ut-inside-shared-ref-pat.classic2024.fixed | 4 +- ...t-inside-shared-ref-pat.classic2024.stderr | 2 +- .../ref-mut-inside-shared-ref-pat.rs | 4 +- ...ut-inside-shared-ref-pat.stable2021.stderr | 2 +- ...nside-shared-ref-pat.structural2021.stderr | 18 +- ...inside-shared-ref-pat.structural2024.fixed | 4 +- ...nside-shared-ref-pat.structural2024.stderr | 2 +- ...well-typed-edition-2024.classic2021.stderr | 72 +------- .../experimental/well-typed-edition-2024.rs | 26 +-- ...l-typed-edition-2024.structural2021.stderr | 72 +------- 18 files changed, 195 insertions(+), 521 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index ae00bb4e218a..47175cda63b8 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -230,10 +230,12 @@ enum InheritedRefMatchRule { /// underlying type is not a reference type, the inherited reference will be consumed. EatInner, /// When the underlying type is a reference type, reference patterns consume both layers of - /// reference, i.e. they both reset the binding mode and consume the reference type. Reference - /// patterns are not permitted when there is no underlying reference type, i.e. they can't eat - /// only an inherited reference. This is the current stable Rust behavior. - EatBoth, + /// reference, i.e. they both reset the binding mode and consume the reference type. + EatBoth { + /// Whether to allow reference patterns to consume only an inherited reference when matching + /// against a non-reference type. This is `false` for stable Rust. + eat_inherited_ref_alone: bool, + }, } impl<'a, 'tcx> FnCtxt<'a, 'tcx> { @@ -259,10 +261,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else { // Currently, matching against an inherited ref on edition 2024 is an error. // Use `EatBoth` as a fallback to be similar to stable Rust. - InheritedRefMatchRule::EatBoth + InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: false } } } else { - InheritedRefMatchRule::EatBoth + InheritedRefMatchRule::EatBoth { + eat_inherited_ref_alone: self.tcx.features().ref_pat_eat_one_layer_2024() + || self.tcx.features().ref_pat_eat_one_layer_2024_structural(), + } } } @@ -2381,9 +2386,29 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth => { + InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: true } => { // Reset binding mode on old editions pat_info.binding_mode = ByRef::No; + + if let ty::Ref(_, _, _) = *expected.kind() { + // Consume both the inherited and inner references. + } else { + // The expected type isn't a reference type, so only match against the + // inherited reference. + if pat_mutbl > inh_mut { + // We can't match a lone inherited shared reference with `&mut`. + self.error_inherited_ref_mutability_mismatch(pat, pat_prefix_span); + } + + self.typeck_results.borrow_mut().skipped_ref_pats_mut().insert(pat.hir_id); + self.check_pat(inner, expected, pat_info); + return expected; + } + } + InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: false } => { + // Reset binding mode on stable Rust. This will be a type error below if + // `expected` is not a reference type. + pat_info.binding_mode = ByRef::No; self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr index e039884cdb14..a856a0eaf2a7 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2021.stderr @@ -58,155 +58,20 @@ LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:50:17 - | -LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { - | ^^^^^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` - | | - | expected `Option<&mut Option<{integer}>>`, found `&_` - | - = note: expected enum `Option<&mut Option<{integer}>>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:57:17 + --> $DIR/pattern-errors.rs:56:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { - | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` - | | - | expected `Option<{integer}>`, found `&mut _` + | ^^^^^ | - = note: expected enum `Option<{integer}>` - found mutable reference `&mut _` - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:66:11 + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | -LL | let &[&mut x] = &&mut [0]; - | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:66:11 - | -LL | let &[&mut x] = &&mut [0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut x] = &&mut [0]; -LL + let &[x] = &&mut [0]; +LL - if let Some(&mut Some(x)) = &Some(Some(0)) { +LL + if let Some(&Some(x)) = &Some(Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:73:11 - | -LL | let &[&mut x] = &mut &mut [0]; - | ^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:73:11 - | -LL | let &[&mut x] = &mut &mut [0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut x] = &mut &mut [0]; -LL + let &[x] = &mut &mut [0]; - | - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:80:11 - | -LL | let &[&mut ref x] = &&mut [0]; - | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:80:11 - | -LL | let &[&mut ref x] = &&mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut ref x] = &&mut [0]; -LL + let &[ref x] = &&mut [0]; - | - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:87:11 - | -LL | let &[&mut ref x] = &mut &mut [0]; - | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:87:11 - | -LL | let &[&mut ref x] = &mut &mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut ref x] = &mut &mut [0]; -LL + let &[ref x] = &mut &mut [0]; - | - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:94:11 - | -LL | let &[&mut mut x] = &&mut [0]; - | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:94:11 - | -LL | let &[&mut mut x] = &&mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut mut x] = &&mut [0]; -LL + let &[mut x] = &&mut [0]; - | - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:101:11 - | -LL | let &[&mut mut x] = &mut &mut [0]; - | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:101:11 - | -LL | let &[&mut mut x] = &mut &mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let &[&mut mut x] = &mut &mut [0]; -LL + let &[mut x] = &mut &mut [0]; - | - -error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:122:11 + --> $DIR/pattern-errors.rs:114:11 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -222,7 +87,7 @@ LL + let [&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:129:11 + --> $DIR/pattern-errors.rs:121:11 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -238,7 +103,7 @@ LL + let [&x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:136:11 + --> $DIR/pattern-errors.rs:128:11 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -254,7 +119,7 @@ LL + let [&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:143:11 + --> $DIR/pattern-errors.rs:135:11 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -270,7 +135,7 @@ LL + let [&ref x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:150:11 + --> $DIR/pattern-errors.rs:142:11 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -286,7 +151,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:157:11 + --> $DIR/pattern-errors.rs:149:11 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -302,7 +167,7 @@ LL + let [&mut x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:172:15 + --> $DIR/pattern-errors.rs:164:15 | LL | let [&mut &x] = &[&mut 0]; | ^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -318,7 +183,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:178:15 + --> $DIR/pattern-errors.rs:170:15 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -334,7 +199,7 @@ LL + let [&mut ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:184:15 + --> $DIR/pattern-errors.rs:176:15 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -349,6 +214,6 @@ LL - let [&mut &(mut x)] = &[&mut 0]; LL + let [&mut mut x)] = &[&mut 0]; | -error: aborting due to 21 previous errors +error: aborting due to 14 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr index b98cfe337efe..90510d23e661 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.classic2024.stderr @@ -64,7 +64,7 @@ LL + if let Some(&Some(&_)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:57:17 + --> $DIR/pattern-errors.rs:56:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^ @@ -77,7 +77,7 @@ LL + if let Some(&Some(x)) = &Some(Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:166:10 + --> $DIR/pattern-errors.rs:158:10 | LL | let [&mut x] = &[&mut 0]; | ^^^^^ @@ -90,7 +90,7 @@ LL + let [&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:172:10 + --> $DIR/pattern-errors.rs:164:10 | LL | let [&mut &x] = &[&mut 0]; | ^^^^^ @@ -103,7 +103,7 @@ LL + let [&&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:178:10 + --> $DIR/pattern-errors.rs:170:10 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^ @@ -116,7 +116,7 @@ LL + let [&&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:184:10 + --> $DIR/pattern-errors.rs:176:10 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs index 4173b1819cba..5e677445644a 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.rs @@ -48,62 +48,54 @@ pub fn main() { //[classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern } if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected `Option<&mut Option<{integer}>>`, found `&_` - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold on `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: u32 = x; } if let Some(&mut Some(x)) = &Some(Some(0)) { //~^ ERROR: mismatched types - //[stable2021,classic2021,structural2021]~| expected `Option<{integer}>`, found `&mut _` - //[classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `classic2021` and `structural2021` should be the mutability mismatch + //[stable2021]~| expected `Option<{integer}>`, found `&mut _` + //[classic2021,structural2021,classic2024,structural2024]~| cannot match inherited `&` with `&mut` pattern } } fn structural_errors_0() { let &[&mut x] = &&mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: u32 = x; let &[&mut x] = &mut &mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: u32 = x; let &[&mut ref x] = &&mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: &u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: &u32 = x; let &[&mut ref x] = &mut &mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: &u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: &u32 = x; let &[&mut mut x] = &&mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| expected integer, found `&mut _` - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: u32 = x; let &[&mut mut x] = &mut &mut [0]; - //[stable2021,classic2021,structural2021,structural2024]~^ ERROR: mismatched types + //[stable2021,structural2021,structural2024]~^ ERROR: mismatched types //[stable2021]~| types differ in mutability - //[structural2024]~| cannot match inherited `&` with `&mut` pattern - // TODO: the error on `structural2021` should be an inherited ref mutability mismatch too - #[cfg(classic2024)] let _: u32 = x; // TODO: this should hold for `classic2021` too + //[structural2021,structural2024]~| cannot match inherited `&` with `&mut` pattern + #[cfg(any(classic2021, classic2024))] let _: u32 = x; } fn structural_errors_1() { diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr index ad9541b71a02..76e6d2f562a2 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.stable2021.stderr @@ -59,7 +59,7 @@ LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:57:17 + --> $DIR/pattern-errors.rs:56:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` @@ -70,7 +70,7 @@ LL | if let Some(&mut Some(x)) = &Some(Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:66:11 + --> $DIR/pattern-errors.rs:64:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -80,7 +80,7 @@ LL | let &[&mut x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:66:11 + --> $DIR/pattern-errors.rs:64:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^^ @@ -91,7 +91,7 @@ LL + let &[x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:73:9 + --> $DIR/pattern-errors.rs:70:9 | LL | let &[&mut x] = &mut &mut [0]; | ^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -102,7 +102,7 @@ LL | let &[&mut x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:80:11 + --> $DIR/pattern-errors.rs:76:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -112,7 +112,7 @@ LL | let &[&mut ref x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:80:11 + --> $DIR/pattern-errors.rs:76:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^^^^^^ @@ -123,7 +123,7 @@ LL + let &[ref x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:87:9 + --> $DIR/pattern-errors.rs:82:9 | LL | let &[&mut ref x] = &mut &mut [0]; | ^^^^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -134,7 +134,7 @@ LL | let &[&mut ref x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:94:11 + --> $DIR/pattern-errors.rs:88:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` @@ -144,7 +144,7 @@ LL | let &[&mut mut x] = &&mut [0]; = note: expected type `{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:94:11 + --> $DIR/pattern-errors.rs:88:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^^^^^^ @@ -155,7 +155,7 @@ LL + let &[mut x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:101:9 + --> $DIR/pattern-errors.rs:94:9 | LL | let &[&mut mut x] = &mut &mut [0]; | ^^^^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` @@ -166,7 +166,7 @@ LL | let &[&mut mut x] = &mut &mut [0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:122:10 + --> $DIR/pattern-errors.rs:114:10 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -177,7 +177,7 @@ LL | let [&&mut x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:129:10 + --> $DIR/pattern-errors.rs:121:10 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -188,7 +188,7 @@ LL | let [&&mut x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:136:10 + --> $DIR/pattern-errors.rs:128:10 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -199,7 +199,7 @@ LL | let [&&mut ref x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:143:10 + --> $DIR/pattern-errors.rs:135:10 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -210,7 +210,7 @@ LL | let [&&mut ref x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:150:10 + --> $DIR/pattern-errors.rs:142:10 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -221,7 +221,7 @@ LL | let [&&mut mut x] = &[&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:157:10 + --> $DIR/pattern-errors.rs:149:10 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -232,7 +232,7 @@ LL | let [&&mut mut x] = &mut [&mut 0]; found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:172:15 + --> $DIR/pattern-errors.rs:164:15 | LL | let [&mut &x] = &[&mut 0]; | ^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -248,7 +248,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:178:15 + --> $DIR/pattern-errors.rs:170:15 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -264,7 +264,7 @@ LL + let [&mut ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:184:15 + --> $DIR/pattern-errors.rs:176:15 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr index e039884cdb14..1ca6bff3f38c 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2021.stderr @@ -58,155 +58,111 @@ LL | if let Some(&Some(&mut _)) = &mut Some(&Some(0)) { found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:50:17 + --> $DIR/pattern-errors.rs:50:28 | LL | if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { - | ^^^^^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` - | | - | expected `Option<&mut Option<{integer}>>`, found `&_` + | ^^^^^ + | + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` + | +LL - if let Some(&Some(Some(&mut x))) = &Some(Some(&mut Some(0))) { +LL + if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { | - = note: expected enum `Option<&mut Option<{integer}>>` - found reference `&_` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:57:17 + --> $DIR/pattern-errors.rs:56:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { - | ^^^^^^^^^^^^ -------------- this expression has type `&Option>` - | | - | expected `Option<{integer}>`, found `&mut _` + | ^^^^^ + | + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` + | +LL - if let Some(&mut Some(x)) = &Some(Some(0)) { +LL + if let Some(&Some(x)) = &Some(Some(0)) { | - = note: expected enum `Option<{integer}>` - found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:66:11 + --> $DIR/pattern-errors.rs:64:11 | LL | let &[&mut x] = &&mut [0]; - | ^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:66:11 - | -LL | let &[&mut x] = &&mut [0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut x] = &&mut [0]; -LL + let &[x] = &&mut [0]; +LL + let &[&x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:73:11 + --> $DIR/pattern-errors.rs:70:11 | LL | let &[&mut x] = &mut &mut [0]; - | ^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:73:11 - | -LL | let &[&mut x] = &mut &mut [0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut x] = &mut &mut [0]; -LL + let &[x] = &mut &mut [0]; +LL + let &[&x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:80:11 + --> $DIR/pattern-errors.rs:76:11 | LL | let &[&mut ref x] = &&mut [0]; - | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:80:11 - | -LL | let &[&mut ref x] = &&mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut ref x] = &&mut [0]; -LL + let &[ref x] = &&mut [0]; +LL + let &[&ref x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:87:11 + --> $DIR/pattern-errors.rs:82:11 | LL | let &[&mut ref x] = &mut &mut [0]; - | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:87:11 - | -LL | let &[&mut ref x] = &mut &mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut ref x] = &mut &mut [0]; -LL + let &[ref x] = &mut &mut [0]; +LL + let &[&ref x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:94:11 + --> $DIR/pattern-errors.rs:88:11 | LL | let &[&mut mut x] = &&mut [0]; - | ^^^^^^^^^^ --------- this expression has type `&&mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:94:11 - | -LL | let &[&mut mut x] = &&mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut mut x] = &&mut [0]; -LL + let &[mut x] = &&mut [0]; +LL + let &[&mut x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:101:11 + --> $DIR/pattern-errors.rs:94:11 | LL | let &[&mut mut x] = &mut &mut [0]; - | ^^^^^^^^^^ ------------- this expression has type `&mut &mut [{integer}; 1]` - | | - | expected integer, found `&mut _` + | ^^^^^ | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/pattern-errors.rs:101:11 - | -LL | let &[&mut mut x] = &mut &mut [0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern + = note: cannot match inherited `&` with `&mut` pattern +help: replace this `&mut` pattern with `&` | LL - let &[&mut mut x] = &mut &mut [0]; -LL + let &[mut x] = &mut &mut [0]; +LL + let &[&mut x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:122:11 + --> $DIR/pattern-errors.rs:114:11 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -222,7 +178,7 @@ LL + let [&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:129:11 + --> $DIR/pattern-errors.rs:121:11 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -238,7 +194,7 @@ LL + let [&x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:136:11 + --> $DIR/pattern-errors.rs:128:11 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -254,7 +210,7 @@ LL + let [&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:143:11 + --> $DIR/pattern-errors.rs:135:11 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -270,7 +226,7 @@ LL + let [&ref x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:150:11 + --> $DIR/pattern-errors.rs:142:11 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -286,7 +242,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:157:11 + --> $DIR/pattern-errors.rs:149:11 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^^^^^^ ------------- this expression has type `&mut [&mut {integer}; 1]` @@ -302,7 +258,7 @@ LL + let [&mut x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:172:15 + --> $DIR/pattern-errors.rs:164:15 | LL | let [&mut &x] = &[&mut 0]; | ^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -318,7 +274,7 @@ LL + let [&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:178:15 + --> $DIR/pattern-errors.rs:170:15 | LL | let [&mut &ref x] = &[&mut 0]; | ^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` @@ -334,7 +290,7 @@ LL + let [&mut ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:184:15 + --> $DIR/pattern-errors.rs:176:15 | LL | let [&mut &(mut x)] = &[&mut 0]; | ^^^^^^^^ --------- this expression has type `&[&mut {integer}; 1]` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr index 950d9f8b3511..3658893df9cc 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/pattern-errors.structural2024.stderr @@ -51,7 +51,7 @@ LL + if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:57:17 + --> $DIR/pattern-errors.rs:56:17 | LL | if let Some(&mut Some(x)) = &Some(Some(0)) { | ^^^^^ @@ -64,7 +64,7 @@ LL + if let Some(&Some(x)) = &Some(Some(0)) { | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:66:11 + --> $DIR/pattern-errors.rs:64:11 | LL | let &[&mut x] = &&mut [0]; | ^^^^^ @@ -77,7 +77,7 @@ LL + let &[&x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:73:11 + --> $DIR/pattern-errors.rs:70:11 | LL | let &[&mut x] = &mut &mut [0]; | ^^^^^ @@ -90,7 +90,7 @@ LL + let &[&x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:80:11 + --> $DIR/pattern-errors.rs:76:11 | LL | let &[&mut ref x] = &&mut [0]; | ^^^^^ @@ -103,7 +103,7 @@ LL + let &[&ref x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:87:11 + --> $DIR/pattern-errors.rs:82:11 | LL | let &[&mut ref x] = &mut &mut [0]; | ^^^^^ @@ -116,7 +116,7 @@ LL + let &[&ref x] = &mut &mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:94:11 + --> $DIR/pattern-errors.rs:88:11 | LL | let &[&mut mut x] = &&mut [0]; | ^^^^^ @@ -129,7 +129,7 @@ LL + let &[&mut x] = &&mut [0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:101:11 + --> $DIR/pattern-errors.rs:94:11 | LL | let &[&mut mut x] = &mut &mut [0]; | ^^^^^ @@ -142,7 +142,7 @@ LL + let &[&mut x] = &mut &mut [0]; | error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/pattern-errors.rs:110:12 + --> $DIR/pattern-errors.rs:102:12 | LL | let [&(mut x)] = &[&0]; | ^^^^ @@ -152,7 +152,7 @@ LL | let [&(mut x)] = &[&0]; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: binding cannot be both mutable and by-reference - --> $DIR/pattern-errors.rs:115:12 + --> $DIR/pattern-errors.rs:107:12 | LL | let [&(mut x)] = &mut [&0]; | ^^^^ @@ -162,7 +162,7 @@ LL | let [&(mut x)] = &mut [&0]; = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:122:11 + --> $DIR/pattern-errors.rs:114:11 | LL | let [&&mut x] = &[&mut 0]; | ^^^^^ @@ -175,7 +175,7 @@ LL + let [&&x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:129:11 + --> $DIR/pattern-errors.rs:121:11 | LL | let [&&mut x] = &mut [&mut 0]; | ^^^^^ @@ -188,7 +188,7 @@ LL + let [&&x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:136:11 + --> $DIR/pattern-errors.rs:128:11 | LL | let [&&mut ref x] = &[&mut 0]; | ^^^^^ @@ -201,7 +201,7 @@ LL + let [&&ref x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:143:11 + --> $DIR/pattern-errors.rs:135:11 | LL | let [&&mut ref x] = &mut [&mut 0]; | ^^^^^ @@ -214,7 +214,7 @@ LL + let [&&ref x] = &mut [&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:150:11 + --> $DIR/pattern-errors.rs:142:11 | LL | let [&&mut mut x] = &[&mut 0]; | ^^^^^ @@ -227,7 +227,7 @@ LL + let [&&mut x] = &[&mut 0]; | error[E0308]: mismatched types - --> $DIR/pattern-errors.rs:157:11 + --> $DIR/pattern-errors.rs:149:11 | LL | let [&&mut mut x] = &mut [&mut 0]; | ^^^^^ diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr index 379ba4a11c55..8127ca92e025 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2021.stderr @@ -1,18 +1,7 @@ -error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 - | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types - | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - error[E0596]: cannot borrow as mutable inside an `&` pattern --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { | - ^ | | | help: replace this `&` with `&mut`: `&mut` @@ -57,7 +46,6 @@ LL | let &[x] = &mut &mut [0]; | | | help: replace this `&` with `&mut`: `&mut` -error: aborting due to 7 previous errors +error: aborting due to 6 previous errors -Some errors have detailed explanations: E0308, E0596. -For more information about an error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed index 105313a14896..57de9cb4c10d 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.fixed @@ -13,8 +13,8 @@ #![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types - //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { + //[stable2021]~^ ERROR: mismatched types //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr index 93ddf4d60fd5..8127ca92e025 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.classic2024.stderr @@ -1,7 +1,7 @@ error[E0596]: cannot borrow as mutable inside an `&` pattern --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { | - ^ | | | help: replace this `&` with `&mut`: `&mut` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs index 800aca06396c..277ff90b673c 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.rs @@ -13,8 +13,8 @@ #![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types - //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { + //[stable2021]~^ ERROR: mismatched types //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr index 9a3b896d4f84..5fbaacd7281d 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.stable2021.stderr @@ -1,7 +1,7 @@ error[E0308]: mismatched types --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` | | | expected `Option<{integer}>`, found `&_` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr index 1a138494b85a..e735cfed2492 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2021.stderr @@ -1,18 +1,7 @@ -error[E0308]: mismatched types - --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:17 - | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types - | ^^^^^^^^^^^^^^^^ ------------------ this expression has type `&mut Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - error[E0596]: cannot borrow as mutable inside an `&` pattern --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { | - ^ | | | help: replace this `&` with `&mut`: `&mut` @@ -49,7 +38,6 @@ LL | let &(ref mut a, ref mut b) = &mut (true, false); | | | help: replace this `&` with `&mut`: `&mut` -error: aborting due to 6 previous errors +error: aborting due to 5 previous errors -Some errors have detailed explanations: E0308, E0596. -For more information about an error, try `rustc --explain E0308`. +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed index 78fbffdb2703..bcde4b90f592 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.fixed @@ -13,8 +13,8 @@ #![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] pub fn main() { - if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types - //[stable2021,classic2021,structural2021]~^ ERROR: mismatched types + if let Some(&mut Some(ref mut x)) = &mut Some(Some(0)) { + //[stable2021]~^ ERROR: mismatched types //[classic2021,structural2021,classic2024,structural2024]~^^ ERROR: cannot borrow as mutable inside an `&` pattern let _: &mut u8 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr index 11e39abb860b..e735cfed2492 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/ref-mut-inside-shared-ref-pat.structural2024.stderr @@ -1,7 +1,7 @@ error[E0596]: cannot borrow as mutable inside an `&` pattern --> $DIR/ref-mut-inside-shared-ref-pat.rs:16:31 | -LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { // TODO: `classic2021` and `structural2021` shouldn't have mismatched types +LL | if let Some(&Some(ref mut x)) = &mut Some(Some(0)) { | - ^ | | | help: replace this `&` with `&mut`: `&mut` diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr index c9195dbfbf5f..f784d7e9988d 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr @@ -14,54 +14,6 @@ LL - if let Some(Some(&&x)) = &Some(Some(&0)) { LL + if let Some(Some(&x)) = &Some(Some(&0)) { | -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:39:22 - | -LL | if let Some(Some(&x)) = &Some(&Some(0)) { - | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(Some(&x)) = &Some(&Some(0)) { -LL + if let Some(Some(x)) = &Some(&Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:44:17 - | -LL | if let Some(&Some(x)) = &Some(Some(0)) { - | ^^^^^^^^ -------------- this expression has type `&Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:49:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:49:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { -LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { - | - error[E0308]: mismatched types --> $DIR/well-typed-edition-2024.rs:63:23 | @@ -78,28 +30,6 @@ LL - if let Some(&Some(&x)) = &Some(&Some(0)) { LL + if let Some(&Some(x)) = &Some(&Some(0)) { | -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:70:17 - | -LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { - | ^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` - | | - | expected `Option<&mut Option<{integer}>>`, found `&_` - | - = note: expected enum `Option<&mut Option<{integer}>>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:75:17 - | -LL | if let Some(&Some(x)) = &mut Some(Some(0)) { - | ^^^^^^^^ ------------------ this expression has type `&mut Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - error[E0308]: mismatched types --> $DIR/well-typed-edition-2024.rs:82:23 | @@ -249,6 +179,6 @@ LL | let [&mut &(mut x)] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` -error: aborting due to 16 previous errors +error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs index e61aa5f35c9a..851011918fe9 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs @@ -37,19 +37,19 @@ pub fn main() { // Tests for eating a lone inherited reference if let Some(Some(&x)) = &Some(&Some(0)) { - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| expected integer, found `&_` - #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` + //[stable2021]~^ mismatched types + //[stable2021]~| expected integer, found `&_` + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } if let Some(&Some(x)) = &Some(Some(0)) { - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| expected `Option<{integer}>`, found `&_` - #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` + //[stable2021]~^ mismatched types + //[stable2021]~| expected `Option<{integer}>`, found `&_` + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| expected integer, found `&mut _` - #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` + //[stable2021]~^ mismatched types + //[stable2021]~| expected integer, found `&mut _` + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } // Tests for `&` patterns matching real `&mut` reference types @@ -68,14 +68,14 @@ pub fn main() { // Tests for `&` matching a lone inherited possibly-`&mut` reference if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { - //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021]~^ mismatched types //[stable2021]~| expected `Option<&mut Option<{integer}>>`, found `&_` - #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } if let Some(&Some(x)) = &mut Some(Some(0)) { - //[stable2021,classic2021,structural2021]~^ mismatched types + //[stable2021]~^ mismatched types //[stable2021]~| expected `Option<{integer}>`, found `&_` - #[cfg(any(classic2024, structural2024))] let _: u32 = x; // TODO: this should hold on `classic2021` and `structural2021` + #[cfg(any(classic2021, structural2021, classic2024, structural2024))] let _: u32 = x; } // Tests eating one layer, eating a lone inherited ref, and `&` eating `&mut` (realness varies) diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr index c9195dbfbf5f..f784d7e9988d 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr @@ -14,54 +14,6 @@ LL - if let Some(Some(&&x)) = &Some(Some(&0)) { LL + if let Some(Some(&x)) = &Some(Some(&0)) { | -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:39:22 - | -LL | if let Some(Some(&x)) = &Some(&Some(0)) { - | ^^ --------------- this expression has type `&Option<&Option<{integer}>>` - | | - | expected integer, found `&_` - | - = note: expected type `{integer}` - found reference `&_` -help: consider removing `&` from the pattern - | -LL - if let Some(Some(&x)) = &Some(&Some(0)) { -LL + if let Some(Some(x)) = &Some(&Some(0)) { - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:44:17 - | -LL | if let Some(&Some(x)) = &Some(Some(0)) { - | ^^^^^^^^ -------------- this expression has type `&Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:49:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ ----------------------- this expression has type `&mut Option<&mut Option<{integer}>>` - | | - | expected integer, found `&mut _` - | - = note: expected type `{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:49:22 - | -LL | if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - if let Some(Some(&mut x)) = &mut Some(&mut Some(0)) { -LL + if let Some(Some(x)) = &mut Some(&mut Some(0)) { - | - error[E0308]: mismatched types --> $DIR/well-typed-edition-2024.rs:63:23 | @@ -78,28 +30,6 @@ LL - if let Some(&Some(&x)) = &Some(&Some(0)) { LL + if let Some(&Some(x)) = &Some(&Some(0)) { | -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:70:17 - | -LL | if let Some(&Some(Some(&x))) = &Some(Some(&mut Some(0))) { - | ^^^^^^^^^^^^^^^ ------------------------- this expression has type `&Option>>` - | | - | expected `Option<&mut Option<{integer}>>`, found `&_` - | - = note: expected enum `Option<&mut Option<{integer}>>` - found reference `&_` - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:75:17 - | -LL | if let Some(&Some(x)) = &mut Some(Some(0)) { - | ^^^^^^^^ ------------------ this expression has type `&mut Option>` - | | - | expected `Option<{integer}>`, found `&_` - | - = note: expected enum `Option<{integer}>` - found reference `&_` - error[E0308]: mismatched types --> $DIR/well-typed-edition-2024.rs:82:23 | @@ -249,6 +179,6 @@ LL | let [&mut &(mut x)] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` -error: aborting due to 16 previous errors +error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0308`. From 443c51d5d6eb0903e3eef9a44e1dfb017e69958d Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 26 Jan 2025 00:27:37 -0800 Subject: [PATCH 098/255] "structural2021" ruleset: add fallback-to-outer (eat both) deref rule --- compiler/rustc_hir_typeck/src/pat.rs | 43 +++++- ...well-typed-edition-2024.classic2021.stderr | 52 +++---- .../experimental/well-typed-edition-2024.rs | 47 +++--- .../well-typed-edition-2024.stable2021.stderr | 52 +++---- ...l-typed-edition-2024.structural2021.stderr | 146 +++++------------- 5 files changed, 156 insertions(+), 184 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 47175cda63b8..be72af63fe50 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -235,6 +235,9 @@ enum InheritedRefMatchRule { /// Whether to allow reference patterns to consume only an inherited reference when matching /// against a non-reference type. This is `false` for stable Rust. eat_inherited_ref_alone: bool, + /// Whether to allow a `&mut` reference pattern to eat a `&` reference type if it's also + /// able to consume a mutable inherited reference. This is `false` for stable Rust. + fallback_to_outer: bool, }, } @@ -261,12 +264,17 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else { // Currently, matching against an inherited ref on edition 2024 is an error. // Use `EatBoth` as a fallback to be similar to stable Rust. - InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: false } + InheritedRefMatchRule::EatBoth { + eat_inherited_ref_alone: false, + fallback_to_outer: false, + } } } else { + let has_structural_gate = self.tcx.features().ref_pat_eat_one_layer_2024_structural(); InheritedRefMatchRule::EatBoth { - eat_inherited_ref_alone: self.tcx.features().ref_pat_eat_one_layer_2024() - || self.tcx.features().ref_pat_eat_one_layer_2024_structural(), + eat_inherited_ref_alone: has_structural_gate + || self.tcx.features().ref_pat_eat_one_layer_2024(), + fallback_to_outer: has_structural_gate, } } } @@ -2386,12 +2394,31 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: true } => { + InheritedRefMatchRule::EatBoth { + eat_inherited_ref_alone: true, + fallback_to_outer, + } => { // Reset binding mode on old editions pat_info.binding_mode = ByRef::No; - if let ty::Ref(_, _, _) = *expected.kind() { + if let ty::Ref(_, inner_ty, _) = *expected.kind() { // Consume both the inherited and inner references. + if fallback_to_outer && inh_mut.is_mut() { + // If we can fall back to matching the inherited reference, the expected + // type is a reference type (of any mutability), and the inherited + // reference is mutable, we'll always be able to match. We handle that + // here to avoid adding fallback-to-outer to the common logic below. + // NB: This way of phrasing the logic will catch more cases than those + // that need to fall back to matching the inherited reference. However, + // as long as `&` patterns can match mutable (inherited) references + // (RFC 3627, Rule 5) this should be sound. + debug_assert!(ref_pat_matches_mut_ref); + self.check_pat(inner, inner_ty, pat_info); + return expected; + } else { + // Otherwise, use the common logic below for matching the inner + // reference type. + } } else { // The expected type isn't a reference type, so only match against the // inherited reference. @@ -2405,9 +2432,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth { eat_inherited_ref_alone: false } => { + rule @ InheritedRefMatchRule::EatBoth { + eat_inherited_ref_alone: false, + fallback_to_outer, + } => { // Reset binding mode on stable Rust. This will be a type error below if // `expected` is not a reference type. + debug_assert!(!fallback_to_outer, "typing rule `{rule:?}` is unimplemented."); pat_info.binding_mode = ByRef::No; self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr index f784d7e9988d..086d4bb133ba 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr @@ -105,28 +105,7 @@ LL + let [ref x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref mut x] = &mut [&0]; -LL + let [ref mut x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:114:10 + --> $DIR/well-typed-edition-2024.rs:117:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -136,7 +115,7 @@ LL | let [&mut mut x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:114:10 + --> $DIR/well-typed-edition-2024.rs:117:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ @@ -147,7 +126,7 @@ LL + let [mut x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:120:10 + --> $DIR/well-typed-edition-2024.rs:123:10 | LL | let [&mut &x] = &mut [&0]; | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -158,7 +137,7 @@ LL | let [&mut &x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:126:10 + --> $DIR/well-typed-edition-2024.rs:129:10 | LL | let [&mut &ref x] = &mut [&0]; | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -169,7 +148,7 @@ LL | let [&mut &ref x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:132:10 + --> $DIR/well-typed-edition-2024.rs:135:10 | LL | let [&mut &(mut x)] = &mut [&0]; | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -179,6 +158,27 @@ LL | let [&mut &(mut x)] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:109:14 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:109:14 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref mut x] = &mut [&0]; +LL + let [ref mut x] = &mut [&0]; + | + error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs index 851011918fe9..63a09fe90c9f 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs @@ -91,47 +91,50 @@ pub fn main() { #[cfg(any(classic2024, structural2024))] let _: u32 = x; } - // Tests for eat-inner rulesets matching on the outer reference if matching on the inner - // reference causes a mutability mismatch, i.e. `Deref(EatInner, FallbackToOuter)`: + // Tests for eat-inner and eat-both rulesets matching on the outer reference if matching on the + // inner reference causes a mutability mismatch. i.e. tests for "fallback-to-outer" deref rules. let [&mut x] = &mut [&0]; - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: on `structural2021` `x` should have type `u32` + //[stable2021,classic2021]~^ mismatched types + //[stable2021,classic2021]~| types differ in mutability + #[cfg(structural2021)] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut ref x] = &mut [&0]; - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: on `structural2021` `x` should have type `&u32` + //[stable2021,classic2021]~^ mismatched types + //[stable2021,classic2021]~| types differ in mutability + #[cfg(structural2021)] let _: &u32 = x; #[cfg(any(classic2024, structural2024))] let _: &&u32 = x; - let [&mut ref mut x] = &mut [&0]; - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: this should be a mut borrow behind shared borrow error on `structural2021` - #[cfg(any(classic2024, structural2024))] let _: &mut &u32 = x; + fn borrowck_error_on_structural2021() { + let [&mut ref mut x] = &mut [&0]; + //[stable2021,classic2021]~^ mismatched types + //[stable2021,classic2021]~| types differ in mutability + //[structural2021]~^^^ cannot borrow data in a `&` reference as mutable + #[cfg(any(classic2024, structural2024))] let _: &mut &u32 = x; + } + borrowck_error_on_structural2021(); let [&mut mut x] = &mut [&0]; - //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: on `structural2021` `x` should have type `u32` + //[stable2021,classic2021]~^ mismatched types + //[stable2021,classic2021]~| types differ in mutability + #[cfg(structural2021)] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &x] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: [structural2021]~| expected integer, found `&_` + //[stable2021,classic2021]~| types differ in mutability + //[structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: u32 = x; let [&mut &ref x] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: [structural2021]~| expected integer, found `&_` + //[stable2021,classic2021]~| types differ in mutability + //[structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &(mut x)] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021,structural2021]~| types differ in mutability - // TODO: [structural2021]~| expected integer, found `&_` + //[stable2021,classic2021]~| types differ in mutability + //[structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: u32 = x; } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr index fb99e3983e8c..adb47172f34c 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.stable2021.stderr @@ -186,28 +186,7 @@ LL + let [ref x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref mut x] = &mut [&0]; -LL + let [ref mut x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:114:10 + --> $DIR/well-typed-edition-2024.rs:117:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -217,7 +196,7 @@ LL | let [&mut mut x] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:114:10 + --> $DIR/well-typed-edition-2024.rs:117:10 | LL | let [&mut mut x] = &mut [&0]; | ^^^^^^^^^^ @@ -228,7 +207,7 @@ LL + let [mut x] = &mut [&0]; | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:120:10 + --> $DIR/well-typed-edition-2024.rs:123:10 | LL | let [&mut &x] = &mut [&0]; | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -239,7 +218,7 @@ LL | let [&mut &x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:126:10 + --> $DIR/well-typed-edition-2024.rs:129:10 | LL | let [&mut &ref x] = &mut [&0]; | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -250,7 +229,7 @@ LL | let [&mut &ref x] = &mut [&0]; found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:132:10 + --> $DIR/well-typed-edition-2024.rs:135:10 | LL | let [&mut &(mut x)] = &mut [&0]; | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` @@ -260,6 +239,27 @@ LL | let [&mut &(mut x)] = &mut [&0]; = note: expected reference `&{integer}` found mutable reference `&mut _` +error[E0308]: mismatched types + --> $DIR/well-typed-edition-2024.rs:109:14 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | types differ in mutability + | + = note: expected reference `&{integer}` + found mutable reference `&mut _` +note: to declare a mutable binding use: `mut x` + --> $DIR/well-typed-edition-2024.rs:109:14 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^^^^^^ +help: consider removing `&mut` from the pattern + | +LL - let [&mut ref mut x] = &mut [&0]; +LL + let [ref mut x] = &mut [&0]; + | + error: aborting due to 17 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr index f784d7e9988d..f8c2bd9a9212 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.structural2021.stderr @@ -63,122 +63,60 @@ LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:96:10 - | -LL | let [&mut x] = &mut [&0]; - | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:96:10 - | -LL | let [&mut x] = &mut [&0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut x] = &mut [&0]; -LL + let [x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:102:10 - | -LL | let [&mut ref x] = &mut [&0]; - | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:102:10 - | -LL | let [&mut ref x] = &mut [&0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref x] = &mut [&0]; -LL + let [ref x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:108:10 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref mut x] = &mut [&0]; -LL + let [ref mut x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:114:10 - | -LL | let [&mut mut x] = &mut [&0]; - | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:114:10 - | -LL | let [&mut mut x] = &mut [&0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut mut x] = &mut [&0]; -LL + let [mut x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:120:10 + --> $DIR/well-typed-edition-2024.rs:123:15 | LL | let [&mut &x] = &mut [&0]; - | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &x] = &mut [&0]; +LL + let [&mut x] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:126:10 + --> $DIR/well-typed-edition-2024.rs:129:15 | LL | let [&mut &ref x] = &mut [&0]; - | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &ref x] = &mut [&0]; +LL + let [&mut ref x] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:132:10 + --> $DIR/well-typed-edition-2024.rs:135:15 | LL | let [&mut &(mut x)] = &mut [&0]; - | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &(mut x)] = &mut [&0]; +LL + let [&mut mut x)] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -error: aborting due to 11 previous errors +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/well-typed-edition-2024.rs:109:19 + | +LL | let [&mut ref mut x] = &mut [&0]; + | ^^^^^^^^^ cannot borrow as mutable -For more information about this error, try `rustc --explain E0308`. +error: aborting due to 8 previous errors + +Some errors have detailed explanations: E0308, E0596. +For more information about an error, try `rustc --explain E0308`. From 1ed74aaf0c6d673c8dbd345b178c3faf769c7e85 Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 26 Jan 2025 03:16:17 -0800 Subject: [PATCH 099/255] add mixed-edition tests --- .../auxiliary/mixed-editions-macros.rs | 48 +++++++ .../mixed-editions.classic2021.stderr | 103 +++++++++++++++ .../mixed-editions.classic2024.stderr | 97 ++++++++++++++ .../experimental/mixed-editions.rs | 122 ++++++++++++++++++ .../mixed-editions.structural2021.stderr | 61 +++++++++ .../mixed-editions.structural2024.stderr | 55 ++++++++ 6 files changed, 486 insertions(+) create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/auxiliary/mixed-editions-macros.rs create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2024.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.rs create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2021.stderr create mode 100644 tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2024.stderr diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/auxiliary/mixed-editions-macros.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/auxiliary/mixed-editions-macros.rs new file mode 100644 index 000000000000..14d26be91a08 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/auxiliary/mixed-editions-macros.rs @@ -0,0 +1,48 @@ +//@[classic2021] edition: 2024 +//@[structural2021] edition: 2024 +//@[classic2024] edition: 2021 +//@[structural2024] edition: 2021 +//! This contains macros in an edition *different* to the one used in `../mixed-editions.rs`, in +//! order to test typing mixed-edition patterns. + +#[macro_export] +macro_rules! match_ctor { + ($p:pat) => { + [$p] + }; +} + +#[macro_export] +macro_rules! match_ref { + ($p:pat) => { + &$p + }; +} + +#[macro_export] +macro_rules! bind { + ($i:ident) => { + $i + } +} + +#[macro_export] +macro_rules! bind_ref { + ($i:ident) => { + ref $i + } +} + +#[macro_export] +macro_rules! bind_mut { + ($i:ident) => { + mut $i + } +} + +#[macro_export] +macro_rules! bind_ref_mut { + ($i:ident) => { + ref mut $i + } +} diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2021.stderr new file mode 100644 index 000000000000..7e3caaf97974 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2021.stderr @@ -0,0 +1,103 @@ +error[E0658]: binding cannot be both mutable and by-reference + --> $DIR/mixed-editions.rs:41:10 + | +LL | let [bind_mut!(y)] = &[0]; + | ^^^^^^^^^^^^ + | + = note: see issue #123076 for more information + = help: add `#![feature(mut_ref)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: this error originates in the macro `bind_mut` (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:76:21 + | +LL | let match_ref!([x]) = &mut &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:80:22 + | +LL | let &match_ctor!(y) = &mut &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:84:17 + | +LL | let &[bind!(z)] = &mut &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:110:28 + | +LL | let match_ref!(ref mut x) = &mut 0; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:112:24 + | +LL | let &bind_ref_mut!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:116:29 + | +LL | let [match_ref!(ref mut x)] = &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:118:25 + | +LL | let [&bind_ref_mut!(x)] = &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: binding modifiers may only be written when the default binding mode is `move` + --> $DIR/mixed-editions.rs:30:10 + | +LL | let [bind_ref!(y)] = &[0]; + | ^^^^^^^^^^^^ occurs within macro expansion + | + = note: for more information, see +note: matching on a reference type with a non-reference pattern changes the default binding mode + --> $DIR/mixed-editions.rs:30:9 + | +LL | let [bind_ref!(y)] = &[0]; + | ^^^^^^^^^^^^^^ this matches on type `&_` + = note: this error originates in the macro `bind_ref` (in Nightly builds, run with -Z macro-backtrace for more info) +help: make the implied reference pattern explicit + | +LL | let &[bind_ref!(y)] = &[0]; + | + + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:61:21 + | +LL | let match_ref!([x]) = &&mut [0]; + | ^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:65:22 + | +LL | let &match_ctor!(y) = &&mut [0]; + | ^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:69:11 + | +LL | let &[bind!(z)] = &&mut [0]; + | ^^^^^^^^ cannot borrow as mutable + | + = note: this error originates in the macro `bind` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 12 previous errors + +Some errors have detailed explanations: E0596, E0658. +For more information about an error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2024.stderr new file mode 100644 index 000000000000..466993a1671f --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.classic2024.stderr @@ -0,0 +1,97 @@ +error[E0658]: binding cannot be both mutable and by-reference + --> $DIR/mixed-editions.rs:37:21 + | +LL | let match_ctor!(mut x) = &[0]; + | ^^^^ + | + = note: see issue #123076 for more information + = help: add `#![feature(mut_ref)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:76:21 + | +LL | let match_ref!([x]) = &mut &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:80:22 + | +LL | let &match_ctor!(y) = &mut &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:84:17 + | +LL | let &[bind!(z)] = &mut &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:110:28 + | +LL | let match_ref!(ref mut x) = &mut 0; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:112:24 + | +LL | let &bind_ref_mut!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:116:29 + | +LL | let [match_ref!(ref mut x)] = &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:118:25 + | +LL | let [&bind_ref_mut!(x)] = &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: binding modifiers may only be written when the default binding mode is `move` + --> $DIR/mixed-editions.rs:26:21 + | +LL | let match_ctor!(ref x) = &[0]; + | ^^^ binding modifier not allowed under `ref` default binding mode + | + = note: for more information, see +help: make the implied reference pattern explicit + --> $DIR/auxiliary/mixed-editions-macros.rs:11:9 + | +LL | &[$p] + | + + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:61:21 + | +LL | let match_ref!([x]) = &&mut [0]; + | ^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:65:22 + | +LL | let &match_ctor!(y) = &&mut [0]; + | ^ cannot borrow as mutable + +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/mixed-editions.rs:69:11 + | +LL | let &[bind!(z)] = &&mut [0]; + | ^^^^^^^^ cannot borrow as mutable + | + = note: this error originates in the macro `bind` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 12 previous errors + +Some errors have detailed explanations: E0596, E0658. +For more information about an error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.rs new file mode 100644 index 000000000000..0a22b55ab637 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.rs @@ -0,0 +1,122 @@ +//@ revisions: classic2021 structural2021 classic2024 structural2024 +//@[classic2021] edition: 2021 +//@[structural2021] edition: 2021 +//@[classic2024] edition: 2024 +//@[structural2024] edition: 2024 +//@ aux-build:mixed-editions-macros.rs +//! Tests for typing mixed-edition patterns under the `ref_pat_eat_one_layer_2024` and +//! `ref_pat_eat_one_layer_2024_structural` feature gates. +//! This is meant both to check that patterns are typed with edition-appropriate typing rules and +//! that we keep our internal state consistent when mixing editions. +#![allow(incomplete_features, unused)] +#![cfg_attr(any(classic2021, classic2024), feature(ref_pat_eat_one_layer_2024))] +#![cfg_attr(any(structural2021, structural2024), feature(ref_pat_eat_one_layer_2024_structural))] + +extern crate mixed_editions_macros; +use mixed_editions_macros::*; + +// Tests type equality in a way that avoids coercing `&&T` to `&T`. +trait Eq {} +impl Eq for T {} +fn assert_type_eq>(_: T, _: U) {} + +/// Make sure binding with `ref` in the presence of an inherited reference is forbidden when and +/// only when the binding is from edition 2024. +fn ref_binding_tests() { + let match_ctor!(ref x) = &[0]; + //[classic2024,structural2024]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` + #[cfg(any(classic2021, structural2021))] assert_type_eq(x, &0u32); + + let [bind_ref!(y)] = &[0]; + //[classic2021,structural2021]~^ ERROR: binding modifiers may only be written when the default binding mode is `move` + #[cfg(any(classic2024, structural2024))] assert_type_eq(y, &0u32); +} + +/// Likewise, when binding with `mut`. +fn mut_binding_tests() { + let match_ctor!(mut x) = &[0]; + //[classic2024,structural2024]~^ ERROR: binding cannot be both mutable and by-reference + #[cfg(any(classic2021, structural2021))] assert_type_eq(x, 0u32); + + let [bind_mut!(y)] = &[0]; + //[classic2021,structural2021]~^ ERROR: binding cannot be both mutable and by-reference + #[cfg(any(classic2024, structural2024))] assert_type_eq(y, 0u32); +} + +/// Make sure reference patterns correspond to one deref on edition 2024 and two on edition 2021. +fn layers_eaten_tests() { + let match_ctor!(&x) = &[&0]; + #[cfg(any(classic2021, structural2021))] assert_type_eq(x, 0u32); + #[cfg(any(classic2024, structural2024))] assert_type_eq(x, &0u32); + + let [match_ref!(y)] = &[&0]; + #[cfg(any(classic2021, structural2021))] assert_type_eq(y, &0u32); + #[cfg(any(classic2024, structural2024))] assert_type_eq(y, 0u32); +} + +/// Make sure downgrading mutable binding modes inside shared refs ("Rule 3") doesn't break. +/// This only applies to `ref_pat_eat_one_layer_2024_structural`, which has Rule 3 in all editions; +/// under `ref_pat_eat_one_layer_2024`, these should be errors. +fn rule_3_tests() { + let match_ref!([x]) = &&mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable + #[cfg(any(structural2021, structural2024))] assert_type_eq(x, &0u32); + + let &match_ctor!(y) = &&mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable + #[cfg(any(structural2021, structural2024))] assert_type_eq(y, &0u32); + + let &[bind!(z)] = &&mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow data in a `&` reference as mutable + #[cfg(any(structural2021, structural2024))] assert_type_eq(z, &0u32); +} + +/// Test that the interaction between Rules 3 and 5 doesn't break. +fn rules_3_and_5_tests() { + let match_ref!([x]) = &mut &mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow as mutable inside an `&` pattern + #[cfg(any(structural2021, structural2024))] assert_type_eq(x, &0u32); + + let &match_ctor!(y) = &mut &mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow as mutable inside an `&` pattern + #[cfg(any(structural2021, structural2024))] assert_type_eq(y, &0u32); + + let &[bind!(z)] = &mut &mut [0]; + //[classic2021,classic2024]~^ ERROR: cannot borrow as mutable inside an `&` pattern + #[cfg(any(structural2021, structural2024))] assert_type_eq(z, &0u32); +} + +/// Make sure matching a lone shared reference with a `&` ("Rule 4") doesn't break. +fn rule_4_tests() { + let match_ref!([x]) = &[0]; + assert_type_eq(x, 0u32); + + let &match_ctor!(y) = &[0]; + assert_type_eq(y, 0u32); +} + +/// Make sure matching a `&mut` reference with a `&` pattern ("Rule 5") doesn't break. +fn rule_5_tests() { + let match_ref!(x) = &mut 0; + assert_type_eq(x, 0u32); + + // also test inherited references (assumes rule 4) + let [match_ref!(y)] = &mut [0]; + assert_type_eq(y, 0u32); +} + +/// Make sure binding with `ref mut` is an error within a `&` pattern matching a `&mut` reference. +fn rule_5_mutability_error_tests() { + let match_ref!(ref mut x) = &mut 0; + //~^ ERROR: cannot borrow as mutable inside an `&` pattern + let &bind_ref_mut!(x) = &mut 0; + //~^ ERROR: cannot borrow as mutable inside an `&` pattern + + // also test inherited references (assumes rule 4) + let [match_ref!(ref mut x)] = &mut [0]; + //~^ ERROR: cannot borrow as mutable inside an `&` pattern + let [&bind_ref_mut!(x)] = &mut [0]; + //~^ ERROR: cannot borrow as mutable inside an `&` pattern +} + +fn main() {} diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2021.stderr new file mode 100644 index 000000000000..4075dc9529da --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2021.stderr @@ -0,0 +1,61 @@ +error[E0658]: binding cannot be both mutable and by-reference + --> $DIR/mixed-editions.rs:41:10 + | +LL | let [bind_mut!(y)] = &[0]; + | ^^^^^^^^^^^^ + | + = note: see issue #123076 for more information + = help: add `#![feature(mut_ref)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + = note: this error originates in the macro `bind_mut` (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:110:28 + | +LL | let match_ref!(ref mut x) = &mut 0; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:112:24 + | +LL | let &bind_ref_mut!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:116:29 + | +LL | let [match_ref!(ref mut x)] = &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:118:25 + | +LL | let [&bind_ref_mut!(x)] = &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: binding modifiers may only be written when the default binding mode is `move` + --> $DIR/mixed-editions.rs:30:10 + | +LL | let [bind_ref!(y)] = &[0]; + | ^^^^^^^^^^^^ occurs within macro expansion + | + = note: for more information, see +note: matching on a reference type with a non-reference pattern changes the default binding mode + --> $DIR/mixed-editions.rs:30:9 + | +LL | let [bind_ref!(y)] = &[0]; + | ^^^^^^^^^^^^^^ this matches on type `&_` + = note: this error originates in the macro `bind_ref` (in Nightly builds, run with -Z macro-backtrace for more info) +help: make the implied reference pattern explicit + | +LL | let &[bind_ref!(y)] = &[0]; + | + + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0596, E0658. +For more information about an error, try `rustc --explain E0596`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2024.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2024.stderr new file mode 100644 index 000000000000..819a54299ea1 --- /dev/null +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/mixed-editions.structural2024.stderr @@ -0,0 +1,55 @@ +error[E0658]: binding cannot be both mutable and by-reference + --> $DIR/mixed-editions.rs:37:21 + | +LL | let match_ctor!(mut x) = &[0]; + | ^^^^ + | + = note: see issue #123076 for more information + = help: add `#![feature(mut_ref)]` to the crate attributes to enable + = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:110:28 + | +LL | let match_ref!(ref mut x) = &mut 0; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:112:24 + | +LL | let &bind_ref_mut!(x) = &mut 0; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:116:29 + | +LL | let [match_ref!(ref mut x)] = &mut [0]; + | ^ + +error[E0596]: cannot borrow as mutable inside an `&` pattern + --> $DIR/mixed-editions.rs:118:25 + | +LL | let [&bind_ref_mut!(x)] = &mut [0]; + | - ^ + | | + | help: replace this `&` with `&mut`: `&mut` + +error: binding modifiers may only be written when the default binding mode is `move` + --> $DIR/mixed-editions.rs:26:21 + | +LL | let match_ctor!(ref x) = &[0]; + | ^^^ binding modifier not allowed under `ref` default binding mode + | + = note: for more information, see +help: make the implied reference pattern explicit + --> $DIR/auxiliary/mixed-editions-macros.rs:11:9 + | +LL | &[$p] + | + + +error: aborting due to 6 previous errors + +Some errors have detailed explanations: E0596, E0658. +For more information about an error, try `rustc --explain E0596`. From 2c595d649aa3ca7cb07ddbbd07ec38a753d6a70d Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 26 Jan 2025 03:33:48 -0800 Subject: [PATCH 100/255] update unstable book --- .../ref-pat-eat-one-layer-2024-structural.md | 5 +++-- .../src/language-features/ref-pat-eat-one-layer-2024.md | 5 +++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024-structural.md b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024-structural.md index bc5876861117..bfdb579cd352 100644 --- a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024-structural.md +++ b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024-structural.md @@ -10,10 +10,11 @@ This feature is incomplete and not yet intended for general use. This implements experimental, Edition-dependent match ergonomics under consideration for inclusion in Rust. -For more information, see the corresponding typing rules for [Editions 2024 and later]. -On earlier Editions, the current behavior is unspecified. +For more information, see the corresponding typing rules for [Editions 2021 and earlier] and for +[Editions 2024 and later]. For alternative experimental match ergonomics, see the feature [`ref_pat_eat_one_layer_2024`](./ref-pat-eat-one-layer-2024.md). +[Editions 2021 and earlier]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAQIBAQEBAAAAAAAAAAAAAAAAAAA%3D&mode=rules&do_cmp=false [Editions 2024 and later]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAgEBAQEBAgIAAAAAAAAAAAAAAAA%3D&mode=rules&do_cmp=false diff --git a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md index 43de1849a5eb..58d8d2905030 100644 --- a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md +++ b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md @@ -10,10 +10,11 @@ This feature is incomplete and not yet intended for general use. This implements experimental, Edition-dependent match ergonomics under consideration for inclusion in Rust. -For more information, see the corresponding typing rules for [Editions 2024 and later]. -On earlier Editions, the current behavior is unspecified. +For more information, see the corresponding typing rules for [Editions 2021 and earlier] and for +[Editions 2024 and later]. For alternative experimental match ergonomics, see the feature [`ref_pat_eat_one_layer_2024_structural`](./ref-pat-eat-one-layer-2024-structural.md). +[Editions 2021 and earlier]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAQABAQABAAAAAQEBAAEBAAABAAA%3D&mode=rules&do_cmp=false [Editions 2024 and later]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAAABAQABAgIAAQEBAAEBAAABAAA%3D&mode=rules&do_cmp=false From 799e0f76903f694632db29bf7fc38c8a7f1453b6 Mon Sep 17 00:00:00 2001 From: dianne Date: Thu, 30 Jan 2025 16:03:02 -0800 Subject: [PATCH 101/255] add FIXMEs for diagnostic improvements --- compiler/rustc_hir_typeck/src/pat.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index be72af63fe50..1e28571807e7 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -2384,6 +2384,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // NB: This assumes that `&` patterns can match against mutable // references (RFC 3627, Rule 5). If we implement a pattern typing // ruleset with Rule 4 but not Rule 5, we'll need to check that here. + // FIXME(ref_pat_eat_one_layer_2024_structural): If we already tried + // matching the real reference, the error message should explain that + // falling back to the inherited reference didn't work. This should be + // the same error as the old-Edition version below. debug_assert!(ref_pat_matches_mut_ref); self.error_inherited_ref_mutability_mismatch(pat, pat_prefix_span); } @@ -2418,6 +2422,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else { // Otherwise, use the common logic below for matching the inner // reference type. + // FIXME(ref_pat_eat_one_layer_2024_structural): If this results in a + // mutability mismatch, the error message should explain that falling + // back to the inherited reference didn't work. This should be the same + // error as the Edition 2024 version above. } } else { // The expected type isn't a reference type, so only match against the From 20149629ba8b143f0529295be22450488e173f30 Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 26 Jan 2025 04:20:30 -0800 Subject: [PATCH 102/255] "classic2021" ruleset: experimentally add fallback-to-outer (eat both) My reasoning: the ruleset implemented by the same feature gate in Edition 2024 always tries to eat the inherited reference first. For consistency, it makes sense to me to say across all editions that users should consider the inherited reference's mutability when wondering if a `&mut` pattern will type. --- compiler/rustc_hir_typeck/src/pat.rs | 46 +++--- .../ref-pat-eat-one-layer-2024.md | 2 +- ...well-typed-edition-2024.classic2021.stderr | 140 +++++------------- .../experimental/well-typed-edition-2024.rs | 36 ++--- 4 files changed, 76 insertions(+), 148 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 1e28571807e7..4201ef667412 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -232,12 +232,13 @@ enum InheritedRefMatchRule { /// When the underlying type is a reference type, reference patterns consume both layers of /// reference, i.e. they both reset the binding mode and consume the reference type. EatBoth { - /// Whether to allow reference patterns to consume only an inherited reference when matching - /// against a non-reference type. This is `false` for stable Rust. - eat_inherited_ref_alone: bool, - /// Whether to allow a `&mut` reference pattern to eat a `&` reference type if it's also - /// able to consume a mutable inherited reference. This is `false` for stable Rust. - fallback_to_outer: bool, + /// This represents two behaviors implemented by both the `ref_pat_eat_one_layer_2024` and + /// `ref_pat_eat_one_layer_2024_structural` feature gates, and is false for stable Rust. + /// - Whether to allow reference patterns to consume only an inherited reference when + /// matching against a non-reference type. + /// - Whether to allow a `&mut` reference pattern to eat a `&` reference type if it's also + /// able to consume a mutable inherited reference. + consider_inherited_ref_first: bool, }, } @@ -264,17 +265,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else { // Currently, matching against an inherited ref on edition 2024 is an error. // Use `EatBoth` as a fallback to be similar to stable Rust. - InheritedRefMatchRule::EatBoth { - eat_inherited_ref_alone: false, - fallback_to_outer: false, - } + InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: false } } } else { - let has_structural_gate = self.tcx.features().ref_pat_eat_one_layer_2024_structural(); InheritedRefMatchRule::EatBoth { - eat_inherited_ref_alone: has_structural_gate - || self.tcx.features().ref_pat_eat_one_layer_2024(), - fallback_to_outer: has_structural_gate, + consider_inherited_ref_first: self.tcx.features().ref_pat_eat_one_layer_2024() + || self.tcx.features().ref_pat_eat_one_layer_2024_structural(), } } } @@ -2398,20 +2394,18 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth { - eat_inherited_ref_alone: true, - fallback_to_outer, - } => { + InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: true } => { // Reset binding mode on old editions pat_info.binding_mode = ByRef::No; if let ty::Ref(_, inner_ty, _) = *expected.kind() { // Consume both the inherited and inner references. - if fallback_to_outer && inh_mut.is_mut() { - // If we can fall back to matching the inherited reference, the expected - // type is a reference type (of any mutability), and the inherited - // reference is mutable, we'll always be able to match. We handle that - // here to avoid adding fallback-to-outer to the common logic below. + if inh_mut.is_mut() { + // If the expected type is a reference type (of any mutability) and the + // inherited ref is mutable, we'll be able to match, since we can fall + // back to matching the inherited ref if the real reference isn't + // mutable enough for our pattern. We handle that here to avoid adding + // fallback-to-outer to the common logic below. // NB: This way of phrasing the logic will catch more cases than those // that need to fall back to matching the inherited reference. However, // as long as `&` patterns can match mutable (inherited) references @@ -2440,13 +2434,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - rule @ InheritedRefMatchRule::EatBoth { - eat_inherited_ref_alone: false, - fallback_to_outer, - } => { + InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: false } => { // Reset binding mode on stable Rust. This will be a type error below if // `expected` is not a reference type. - debug_assert!(!fallback_to_outer, "typing rule `{rule:?}` is unimplemented."); pat_info.binding_mode = ByRef::No; self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, diff --git a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md index 58d8d2905030..0c90cec0dbdd 100644 --- a/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md +++ b/src/doc/unstable-book/src/language-features/ref-pat-eat-one-layer-2024.md @@ -16,5 +16,5 @@ For more information, see the corresponding typing rules for [Editions 2021 and For alternative experimental match ergonomics, see the feature [`ref_pat_eat_one_layer_2024_structural`](./ref-pat-eat-one-layer-2024-structural.md). -[Editions 2021 and earlier]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAQABAQABAAAAAQEBAAEBAAABAAA%3D&mode=rules&do_cmp=false +[Editions 2021 and earlier]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAQIBAQABAAAAAQEBAAEBAAABAAA%3D&mode=rules&do_cmp=false [Editions 2024 and later]: https://nadrieril.github.io/typing-rust-patterns/?compare=false&opts1=AQEBAAABAQABAgIAAQEBAAEBAAABAAA%3D&mode=rules&do_cmp=false diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr index 086d4bb133ba..f8c2bd9a9212 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.classic2021.stderr @@ -63,122 +63,60 @@ LL + if let Some(&Some(x)) = &mut Some(&Some(0)) { | error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:96:10 - | -LL | let [&mut x] = &mut [&0]; - | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:96:10 - | -LL | let [&mut x] = &mut [&0]; - | ^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut x] = &mut [&0]; -LL + let [x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:102:10 - | -LL | let [&mut ref x] = &mut [&0]; - | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:102:10 - | -LL | let [&mut ref x] = &mut [&0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref x] = &mut [&0]; -LL + let [ref x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:117:10 - | -LL | let [&mut mut x] = &mut [&0]; - | ^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:117:10 - | -LL | let [&mut mut x] = &mut [&0]; - | ^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut mut x] = &mut [&0]; -LL + let [mut x] = &mut [&0]; - | - -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:123:10 + --> $DIR/well-typed-edition-2024.rs:123:15 | LL | let [&mut &x] = &mut [&0]; - | ^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &x] = &mut [&0]; +LL + let [&mut x] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:129:10 + --> $DIR/well-typed-edition-2024.rs:129:15 | LL | let [&mut &ref x] = &mut [&0]; - | ^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &ref x] = &mut [&0]; +LL + let [&mut ref x] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:135:10 + --> $DIR/well-typed-edition-2024.rs:135:15 | LL | let [&mut &(mut x)] = &mut [&0]; - | ^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability + | ^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` + | | + | expected integer, found `&_` + | + = note: expected type `{integer}` + found reference `&_` +help: consider removing `&` from the pattern + | +LL - let [&mut &(mut x)] = &mut [&0]; +LL + let [&mut mut x)] = &mut [&0]; | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -error[E0308]: mismatched types - --> $DIR/well-typed-edition-2024.rs:109:14 +error[E0596]: cannot borrow data in a `&` reference as mutable + --> $DIR/well-typed-edition-2024.rs:109:19 | LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ --------- this expression has type `&mut [&{integer}; 1]` - | | - | types differ in mutability - | - = note: expected reference `&{integer}` - found mutable reference `&mut _` -note: to declare a mutable binding use: `mut x` - --> $DIR/well-typed-edition-2024.rs:109:14 - | -LL | let [&mut ref mut x] = &mut [&0]; - | ^^^^^^^^^^^^^^ -help: consider removing `&mut` from the pattern - | -LL - let [&mut ref mut x] = &mut [&0]; -LL + let [ref mut x] = &mut [&0]; - | + | ^^^^^^^^^ cannot borrow as mutable -error: aborting due to 11 previous errors +error: aborting due to 8 previous errors -For more information about this error, try `rustc --explain E0308`. +Some errors have detailed explanations: E0308, E0596. +For more information about an error, try `rustc --explain E0308`. diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs index 63a09fe90c9f..62c1c28022b7 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/experimental/well-typed-edition-2024.rs @@ -94,47 +94,47 @@ pub fn main() { // Tests for eat-inner and eat-both rulesets matching on the outer reference if matching on the // inner reference causes a mutability mismatch. i.e. tests for "fallback-to-outer" deref rules. let [&mut x] = &mut [&0]; - //[stable2021,classic2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - #[cfg(structural2021)] let _: u32 = x; + //[stable2021]~^ mismatched types + //[stable2021]~| types differ in mutability + #[cfg(any(classic2021, structural2021))] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut ref x] = &mut [&0]; - //[stable2021,classic2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - #[cfg(structural2021)] let _: &u32 = x; + //[stable2021]~^ mismatched types + //[stable2021]~| types differ in mutability + #[cfg(any(classic2021, structural2021))] let _: &u32 = x; #[cfg(any(classic2024, structural2024))] let _: &&u32 = x; fn borrowck_error_on_structural2021() { let [&mut ref mut x] = &mut [&0]; - //[stable2021,classic2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - //[structural2021]~^^^ cannot borrow data in a `&` reference as mutable + //[stable2021]~^ mismatched types + //[stable2021]~| types differ in mutability + //[classic2021,structural2021]~^^^ cannot borrow data in a `&` reference as mutable #[cfg(any(classic2024, structural2024))] let _: &mut &u32 = x; } borrowck_error_on_structural2021(); let [&mut mut x] = &mut [&0]; - //[stable2021,classic2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - #[cfg(structural2021)] let _: u32 = x; + //[stable2021]~^ mismatched types + //[stable2021]~| types differ in mutability + #[cfg(any(classic2021, structural2021))] let _: u32 = x; #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &x] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - //[structural2021]~| expected integer, found `&_` + //[stable2021]~| types differ in mutability + //[classic2021,structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: u32 = x; let [&mut &ref x] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - //[structural2021]~| expected integer, found `&_` + //[stable2021]~| types differ in mutability + //[classic2021,structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: &u32 = x; let [&mut &(mut x)] = &mut [&0]; //[stable2021,classic2021,structural2021]~^ mismatched types - //[stable2021,classic2021]~| types differ in mutability - //[structural2021]~| expected integer, found `&_` + //[stable2021]~| types differ in mutability + //[classic2021,structural2021]~| expected integer, found `&_` #[cfg(any(classic2024, structural2024))] let _: u32 = x; } From 37bcc1cc5ccd6b87257388e11a7573df61ebc990 Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 16 Feb 2025 16:20:52 -0800 Subject: [PATCH 103/255] clarify wording on doc comment Co-authored-by: Nadrieril --- compiler/rustc_hir_typeck/src/pat.rs | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 4201ef667412..40df87188cd3 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -232,12 +232,15 @@ enum InheritedRefMatchRule { /// When the underlying type is a reference type, reference patterns consume both layers of /// reference, i.e. they both reset the binding mode and consume the reference type. EatBoth { - /// This represents two behaviors implemented by both the `ref_pat_eat_one_layer_2024` and - /// `ref_pat_eat_one_layer_2024_structural` feature gates, and is false for stable Rust. - /// - Whether to allow reference patterns to consume only an inherited reference when - /// matching against a non-reference type. - /// - Whether to allow a `&mut` reference pattern to eat a `&` reference type if it's also - /// able to consume a mutable inherited reference. + /// If `true`, an inherited reference will be considered when determining whether a reference + /// pattern matches a given type: + /// - If the underlying type is not a reference, a reference pattern may eat the inherited reference; + /// - If the underlying type is a reference, a reference pattern matches if it can eat either one + /// of the underlying and inherited references. E.g. a `&mut` pattern is allowed if either the + /// underlying type is `&mut` or the inherited reference is `&mut`. + /// If `false`, a reference pattern is only matched against the underlying type. + /// This is `false` for stable Rust and `true` for both the `ref_pat_eat_one_layer_2024` and + /// `ref_pat_eat_one_layer_2024_structural` feature gates. consider_inherited_ref_first: bool, }, } From 0e758c4ba6d9165106f6db768e23f01fabfd2d8c Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 16 Feb 2025 17:04:26 -0800 Subject: [PATCH 104/255] rename `consider_inherited_ref_first` -> `consider_inherited_ref` --- compiler/rustc_hir_typeck/src/pat.rs | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 40df87188cd3..9456247de887 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -241,7 +241,7 @@ enum InheritedRefMatchRule { /// If `false`, a reference pattern is only matched against the underlying type. /// This is `false` for stable Rust and `true` for both the `ref_pat_eat_one_layer_2024` and /// `ref_pat_eat_one_layer_2024_structural` feature gates. - consider_inherited_ref_first: bool, + consider_inherited_ref: bool, }, } @@ -268,11 +268,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else { // Currently, matching against an inherited ref on edition 2024 is an error. // Use `EatBoth` as a fallback to be similar to stable Rust. - InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: false } + InheritedRefMatchRule::EatBoth { consider_inherited_ref: false } } } else { InheritedRefMatchRule::EatBoth { - consider_inherited_ref_first: self.tcx.features().ref_pat_eat_one_layer_2024() + consider_inherited_ref: self.tcx.features().ref_pat_eat_one_layer_2024() || self.tcx.features().ref_pat_eat_one_layer_2024_structural(), } } @@ -2397,7 +2397,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: true } => { + InheritedRefMatchRule::EatBoth { consider_inherited_ref: true } => { // Reset binding mode on old editions pat_info.binding_mode = ByRef::No; @@ -2437,7 +2437,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return expected; } } - InheritedRefMatchRule::EatBoth { consider_inherited_ref_first: false } => { + InheritedRefMatchRule::EatBoth { consider_inherited_ref: false } => { // Reset binding mode on stable Rust. This will be a type error below if // `expected` is not a reference type. pat_info.binding_mode = ByRef::No; From 0a15bfb340430075703689630ab99d3bc22a96d5 Mon Sep 17 00:00:00 2001 From: dianne Date: Sun, 16 Feb 2025 18:48:07 -0800 Subject: [PATCH 105/255] simplify fallback-to-outer condition on old editions --- compiler/rustc_hir_typeck/src/pat.rs | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 9456247de887..73a1432b06ce 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -2403,17 +2403,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let ty::Ref(_, inner_ty, _) = *expected.kind() { // Consume both the inherited and inner references. - if inh_mut.is_mut() { - // If the expected type is a reference type (of any mutability) and the - // inherited ref is mutable, we'll be able to match, since we can fall - // back to matching the inherited ref if the real reference isn't - // mutable enough for our pattern. We handle that here to avoid adding - // fallback-to-outer to the common logic below. - // NB: This way of phrasing the logic will catch more cases than those - // that need to fall back to matching the inherited reference. However, - // as long as `&` patterns can match mutable (inherited) references - // (RFC 3627, Rule 5) this should be sound. - debug_assert!(ref_pat_matches_mut_ref); + if pat_mutbl.is_mut() && inh_mut.is_mut() { + // As a special case, a `&mut` reference pattern will be able to match + // against a reference type of any mutability if the inherited ref is + // mutable. Since this allows us to match against a shared reference + // type, we refer to this as "falling back" to matching the inherited + // reference, though we consume the real reference as well. We handle + // this here to avoid adding this case to the common logic below. self.check_pat(inner, inner_ty, pat_info); return expected; } else { From d9b91de00c3716e577aeb02929bee69f8028f3a0 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 19 Feb 2025 00:56:54 +1100 Subject: [PATCH 106/255] coverage: Add some more cases to `tests/coverage/holes.rs` --- tests/coverage/holes.cov-map | 31 +++++++++++++++----------- tests/coverage/holes.coverage | 41 +++++++++++++++++++++++++++++++---- tests/coverage/holes.rs | 33 ++++++++++++++++++++++++++++ 3 files changed, 88 insertions(+), 17 deletions(-) diff --git a/tests/coverage/holes.cov-map b/tests/coverage/holes.cov-map index 3c740d80ea05..3deacbc8e128 100644 --- a/tests/coverage/holes.cov-map +++ b/tests/coverage/holes.cov-map @@ -1,52 +1,57 @@ Function name: ::_method (unused) -Raw bytes (9): 0x[01, 01, 00, 01, 00, 25, 09, 00, 1d] +Raw bytes (9): 0x[01, 01, 00, 01, 00, 2b, 09, 00, 1d] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 1 -- Code(Zero) at (prev + 37, 9) to (start + 0, 29) +- Code(Zero) at (prev + 43, 9) to (start + 0, 29) Highest counter ID seen: (none) Function name: holes::main -Raw bytes (44): 0x[01, 01, 00, 08, 01, 08, 01, 06, 11, 01, 0f, 05, 00, 12, 01, 04, 05, 00, 12, 01, 07, 05, 00, 12, 01, 06, 05, 00, 12, 01, 06, 05, 03, 0f, 01, 0a, 05, 03, 0f, 01, 0a, 05, 01, 02] +Raw bytes (69): 0x[01, 01, 00, 0d, 01, 08, 01, 01, 12, 01, 05, 05, 00, 12, 01, 07, 09, 00, 11, 01, 09, 05, 00, 12, 01, 04, 05, 00, 12, 01, 07, 05, 00, 12, 01, 06, 05, 00, 12, 01, 04, 05, 00, 12, 01, 04, 05, 00, 12, 01, 06, 05, 03, 0f, 01, 0a, 05, 03, 0f, 01, 0a, 05, 0c, 0d, 01, 0f, 0e, 05, 02] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 -Number of file 0 mappings: 8 -- Code(Counter(0)) at (prev + 8, 1) to (start + 6, 17) -- Code(Counter(0)) at (prev + 15, 5) to (start + 0, 18) +Number of file 0 mappings: 13 +- Code(Counter(0)) at (prev + 8, 1) to (start + 1, 18) +- Code(Counter(0)) at (prev + 5, 5) to (start + 0, 18) +- Code(Counter(0)) at (prev + 7, 9) to (start + 0, 17) +- Code(Counter(0)) at (prev + 9, 5) to (start + 0, 18) - Code(Counter(0)) at (prev + 4, 5) to (start + 0, 18) - Code(Counter(0)) at (prev + 7, 5) to (start + 0, 18) - Code(Counter(0)) at (prev + 6, 5) to (start + 0, 18) +- Code(Counter(0)) at (prev + 4, 5) to (start + 0, 18) +- Code(Counter(0)) at (prev + 4, 5) to (start + 0, 18) - Code(Counter(0)) at (prev + 6, 5) to (start + 3, 15) - Code(Counter(0)) at (prev + 10, 5) to (start + 3, 15) -- Code(Counter(0)) at (prev + 10, 5) to (start + 1, 2) +- Code(Counter(0)) at (prev + 10, 5) to (start + 12, 13) +- Code(Counter(0)) at (prev + 15, 14) to (start + 5, 2) Highest counter ID seen: c0 Function name: holes::main::_unused_fn (unused) -Raw bytes (9): 0x[01, 01, 00, 01, 00, 19, 05, 00, 17] +Raw bytes (9): 0x[01, 01, 00, 01, 00, 1f, 05, 00, 17] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 1 -- Code(Zero) at (prev + 25, 5) to (start + 0, 23) +- Code(Zero) at (prev + 31, 5) to (start + 0, 23) Highest counter ID seen: (none) Function name: holes::main::{closure#0} (unused) -Raw bytes (9): 0x[01, 01, 00, 01, 00, 12, 09, 02, 0a] +Raw bytes (9): 0x[01, 01, 00, 01, 00, 18, 09, 02, 0a] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 1 -- Code(Zero) at (prev + 18, 9) to (start + 2, 10) +- Code(Zero) at (prev + 24, 9) to (start + 2, 10) Highest counter ID seen: (none) Function name: holes::main::{closure#1} (unused) -Raw bytes (9): 0x[01, 01, 00, 01, 00, 3d, 09, 02, 0a] +Raw bytes (9): 0x[01, 01, 00, 01, 00, 4b, 09, 02, 0a] Number of files: 1 - file 0 => global file 1 Number of expressions: 0 Number of file 0 mappings: 1 -- Code(Zero) at (prev + 61, 9) to (start + 2, 10) +- Code(Zero) at (prev + 75, 9) to (start + 2, 10) Highest counter ID seen: (none) diff --git a/tests/coverage/holes.coverage b/tests/coverage/holes.coverage index 6e65435f7e3f..1b45c12156ae 100644 --- a/tests/coverage/holes.coverage +++ b/tests/coverage/holes.coverage @@ -7,10 +7,16 @@ LL| | LL| 1|fn main() { LL| 1| black_box(()); - LL| 1| - LL| 1| // Splitting this across multiple lines makes it easier to see where the - LL| 1| // coverage mapping regions begin and end. - LL| 1| #[rustfmt::skip] + LL| | + LL| | static MY_STATIC: () = (); + LL| | + LL| 1| black_box(()); + LL| | + LL| | const MY_CONST: () = (); + LL| | + LL| | // Splitting this across multiple lines makes it easier to see where the + LL| | // coverage mapping regions begin and end. + LL| | #[rustfmt::skip] LL| 1| let _closure = LL| | | LL| | _arg: (), @@ -39,6 +45,14 @@ LL| | LL| 1| black_box(()); LL| | + LL| | trait MyTrait {} + LL| | + LL| 1| black_box(()); + LL| | + LL| | impl MyTrait for MyStruct {} + LL| | + LL| 1| black_box(()); + LL| | LL| | macro_rules! _my_macro { LL| | () => {}; LL| | } @@ -64,5 +78,24 @@ LL| | ; LL| | LL| 1| black_box(()); + LL| 1| + LL| 1| // This tests the edge case of a const block nested inside an "anon const", + LL| 1| // such as the length of an array literal. Handling this case requires + LL| 1| // `nested_filter::OnlyBodies` or equivalent. + LL| 1| #[rustfmt::skip] + LL| 1| let _const_block_inside_anon_const = + LL| 1| [ + LL| 1| 0 + LL| 1| ; + LL| 1| 7 + LL| 1| + + LL| 1| const + LL| | { + LL| | 3 + LL| 1| } + LL| 1| ] + LL| 1| ; + LL| 1| + LL| 1| black_box(()); LL| 1|} diff --git a/tests/coverage/holes.rs b/tests/coverage/holes.rs index b3a71e759c83..7f6671772c32 100644 --- a/tests/coverage/holes.rs +++ b/tests/coverage/holes.rs @@ -8,6 +8,12 @@ use core::hint::black_box; fn main() { black_box(()); + static MY_STATIC: () = (); + + black_box(()); + + const MY_CONST: () = (); + // Splitting this across multiple lines makes it easier to see where the // coverage mapping regions begin and end. #[rustfmt::skip] @@ -39,6 +45,14 @@ fn main() { black_box(()); + trait MyTrait {} + + black_box(()); + + impl MyTrait for MyStruct {} + + black_box(()); + macro_rules! _my_macro { () => {}; } @@ -64,4 +78,23 @@ fn main() { ; black_box(()); + + // This tests the edge case of a const block nested inside an "anon const", + // such as the length of an array literal. Handling this case requires + // `nested_filter::OnlyBodies` or equivalent. + #[rustfmt::skip] + let _const_block_inside_anon_const = + [ + 0 + ; + 7 + + + const + { + 3 + } + ] + ; + + black_box(()); } From 51f704f0ff22965d6f21cc7e6888d55e5141932d Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 19 Feb 2025 00:54:47 +1100 Subject: [PATCH 107/255] coverage: Get hole spans from nested items without fully visiting them It turns out that this visitor doesn't actually need `nested_filter::All` to handle nested items; it just needs to override `visit_nested_item` and look up the item's span. --- .../rustc_mir_transform/src/coverage/mod.rs | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 264995efe8fa..774f47a35aa4 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -352,19 +352,20 @@ fn extract_hole_spans_from_hir<'tcx>( } impl<'hir, F: FnMut(Span)> Visitor<'hir> for HolesVisitor<'hir, F> { - /// - We need `NestedFilter::INTRA = true` so that `visit_item` will be called. - /// - Bodies of nested items don't actually get visited, because of the - /// `visit_item` override. - /// - For nested bodies that are not part of an item, we do want to visit any - /// items contained within them. - type NestedFilter = nested_filter::All; + /// We have special handling for nested items, but we still want to + /// traverse into nested bodies of things that are not considered items, + /// such as "anon consts" (e.g. array lengths). + type NestedFilter = nested_filter::OnlyBodies; fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt { self.tcx } - fn visit_item(&mut self, item: &'hir hir::Item<'hir>) { - (self.visit_hole_span)(item.span); + /// We override `visit_nested_item` instead of `visit_item` because we + /// only need the item's span, not the item itself. + fn visit_nested_item(&mut self, id: hir::ItemId) -> Self::Result { + let span = self.tcx.def_span(id.owner_id.def_id); + (self.visit_hole_span)(span); // Having visited this item, we don't care about its children, // so don't call `walk_item`. } From d38f6880c029cd71a4ce1bc6be783741767d10c3 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Wed, 19 Feb 2025 01:22:28 +1100 Subject: [PATCH 108/255] coverage: Make `HolesVisitor::visit_hole_span` a regular method --- .../rustc_mir_transform/src/coverage/mod.rs | 36 +++++++++---------- 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/compiler/rustc_mir_transform/src/coverage/mod.rs b/compiler/rustc_mir_transform/src/coverage/mod.rs index 774f47a35aa4..1ccae0fd7fe9 100644 --- a/compiler/rustc_mir_transform/src/coverage/mod.rs +++ b/compiler/rustc_mir_transform/src/coverage/mod.rs @@ -346,18 +346,19 @@ fn extract_hole_spans_from_hir<'tcx>( body_span: Span, // Usually `hir_body.value.span`, but not always hir_body: &hir::Body<'tcx>, ) -> Vec { - struct HolesVisitor<'hir, F> { - tcx: TyCtxt<'hir>, - visit_hole_span: F, + struct HolesVisitor<'tcx> { + tcx: TyCtxt<'tcx>, + body_span: Span, + hole_spans: Vec, } - impl<'hir, F: FnMut(Span)> Visitor<'hir> for HolesVisitor<'hir, F> { + impl<'tcx> Visitor<'tcx> for HolesVisitor<'tcx> { /// We have special handling for nested items, but we still want to /// traverse into nested bodies of things that are not considered items, /// such as "anon consts" (e.g. array lengths). type NestedFilter = nested_filter::OnlyBodies; - fn maybe_tcx(&mut self) -> Self::MaybeTyCtxt { + fn maybe_tcx(&mut self) -> TyCtxt<'tcx> { self.tcx } @@ -365,17 +366,17 @@ fn extract_hole_spans_from_hir<'tcx>( /// only need the item's span, not the item itself. fn visit_nested_item(&mut self, id: hir::ItemId) -> Self::Result { let span = self.tcx.def_span(id.owner_id.def_id); - (self.visit_hole_span)(span); + self.visit_hole_span(span); // Having visited this item, we don't care about its children, // so don't call `walk_item`. } // We override `visit_expr` instead of the more specific expression // visitors, so that we have direct access to the expression span. - fn visit_expr(&mut self, expr: &'hir hir::Expr<'hir>) { + fn visit_expr(&mut self, expr: &'tcx hir::Expr<'tcx>) { match expr.kind { hir::ExprKind::Closure(_) | hir::ExprKind::ConstBlock(_) => { - (self.visit_hole_span)(expr.span); + self.visit_hole_span(expr.span); // Having visited this expression, we don't care about its // children, so don't call `walk_expr`. } @@ -385,18 +386,17 @@ fn extract_hole_spans_from_hir<'tcx>( } } } - - let mut hole_spans = vec![]; - let mut visitor = HolesVisitor { - tcx, - visit_hole_span: |hole_span| { + impl HolesVisitor<'_> { + fn visit_hole_span(&mut self, hole_span: Span) { // Discard any holes that aren't directly visible within the body span. - if body_span.contains(hole_span) && body_span.eq_ctxt(hole_span) { - hole_spans.push(hole_span); + if self.body_span.contains(hole_span) && self.body_span.eq_ctxt(hole_span) { + self.hole_spans.push(hole_span); } - }, - }; + } + } + + let mut visitor = HolesVisitor { tcx, body_span, hole_spans: vec![] }; visitor.visit_body(hir_body); - hole_spans + visitor.hole_spans } From b02eac37ffa30ad4f0ffb703ac7e598fa7213c7a Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 19 Feb 2025 03:58:31 +0000 Subject: [PATCH 109/255] Restrict bevy hack --- .../rustc_hir_analysis/src/check/wfcheck.rs | 54 +++++++++---------- compiler/rustc_span/src/symbol.rs | 2 + compiler/rustc_type_ir/src/visit.rs | 7 +++ tests/ui/implied-bounds/bevy_world_query.rs | 2 + 4 files changed, 37 insertions(+), 28 deletions(-) diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index edfa897860b7..f98504e19dec 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -16,7 +16,6 @@ use rustc_lint_defs::builtin::SUPERTRAIT_ITEM_SHADOWING_DEFINITION; use rustc_macros::LintDiagnostic; use rustc_middle::mir::interpret::ErrorHandled; use rustc_middle::query::Providers; -use rustc_middle::ty::print::with_no_trimmed_paths; use rustc_middle::ty::trait_def::TraitSpecializationKind; use rustc_middle::ty::{ self, AdtKind, GenericArgKind, GenericArgs, GenericParamDefKind, Ty, TyCtxt, TypeFoldable, @@ -143,33 +142,7 @@ where return Ok(()); } - let is_bevy = 'is_bevy: { - // We don't want to emit this for dependents of Bevy, for now. - // See #119956 - let is_bevy_paramset = |def: ty::AdtDef<'_>| { - let adt_did = with_no_trimmed_paths!(infcx.tcx.def_path_str(def.0.did)); - adt_did.contains("ParamSet") - }; - for ty in assumed_wf_types.iter() { - match ty.kind() { - ty::Adt(def, _) => { - if is_bevy_paramset(*def) { - break 'is_bevy true; - } - } - ty::Ref(_, ty, _) => match ty.kind() { - ty::Adt(def, _) => { - if is_bevy_paramset(*def) { - break 'is_bevy true; - } - } - _ => {} - }, - _ => {} - } - } - false - }; + let is_bevy = assumed_wf_types.visit_with(&mut ContainsBevyParamSet { tcx }).is_break(); // If we have set `no_implied_bounds_compat`, then do not attempt compatibility. // We could also just always enter if `is_bevy`, and call `implied_bounds_tys`, @@ -194,6 +167,31 @@ where } } +struct ContainsBevyParamSet<'tcx> { + tcx: TyCtxt<'tcx>, +} + +impl<'tcx> TypeVisitor> for ContainsBevyParamSet<'tcx> { + type Result = ControlFlow<()>; + + fn visit_ty(&mut self, t: Ty<'tcx>) -> Self::Result { + // We only care to match `ParamSet` or `&ParamSet`. + match t.kind() { + ty::Adt(def, _) => { + if self.tcx.item_name(def.did()) == sym::ParamSet + && self.tcx.crate_name(def.did().krate) == sym::bevy_ecs + { + return ControlFlow::Break(()); + } + } + ty::Ref(_, ty, _) => ty.visit_with(self)?, + _ => {} + } + + ControlFlow::Continue(()) + } +} + fn check_well_formed(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Result<(), ErrorGuaranteed> { let node = tcx.hir_node_by_def_id(def_id); let mut res = match node { diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index d155e95078be..d4d435d9b746 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -289,6 +289,7 @@ symbols! { OsString, Output, Param, + ParamSet, PartialEq, PartialOrd, Path, @@ -520,6 +521,7 @@ symbols! { bang, begin_panic, bench, + bevy_ecs, bikeshed_guaranteed_no_drop, bin, binaryheap_iter, diff --git a/compiler/rustc_type_ir/src/visit.rs b/compiler/rustc_type_ir/src/visit.rs index a12e9856304a..0d8da2bacfcb 100644 --- a/compiler/rustc_type_ir/src/visit.rs +++ b/compiler/rustc_type_ir/src/visit.rs @@ -224,6 +224,13 @@ impl, Ix: Idx> TypeVisitable for IndexVec, S> TypeVisitable for indexmap::IndexSet { + fn visit_with>(&self, visitor: &mut V) -> V::Result { + walk_visitable_list!(visitor, self.iter()); + V::Result::output() + } +} + pub trait Flags { fn flags(&self) -> TypeFlags; fn outer_exclusive_binder(&self) -> ty::DebruijnIndex; diff --git a/tests/ui/implied-bounds/bevy_world_query.rs b/tests/ui/implied-bounds/bevy_world_query.rs index e36be26d003f..6548c03d1b00 100644 --- a/tests/ui/implied-bounds/bevy_world_query.rs +++ b/tests/ui/implied-bounds/bevy_world_query.rs @@ -1,3 +1,5 @@ +#![crate_name = "bevy_ecs"] + //@ check-pass // We currently special case bevy from erroring on incorrect implied bounds From 604364fcf44e0843e4ea9818daaf97418da233d5 Mon Sep 17 00:00:00 2001 From: xizheyin Date: Wed, 19 Feb 2025 13:20:03 +0800 Subject: [PATCH 110/255] remove assume_init in stack_overflow Signed-off-by: xizheyin --- library/std/src/sys/pal/unix/stack_overflow.rs | 15 +++++++++------ library/std/src/sys/pal/unix/thread.rs | 1 - 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs index 1ccf2011ea16..0550223eb9ac 100644 --- a/library/std/src/sys/pal/unix/stack_overflow.rs +++ b/library/std/src/sys/pal/unix/stack_overflow.rs @@ -319,26 +319,29 @@ mod imp { ))] unsafe fn get_stack_start() -> Option<*mut libc::c_void> { let mut ret = None; - let attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { + let mut attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { let mut attr = mem::MaybeUninit::uninit(); assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); attr } else { mem::MaybeUninit::zeroed() }; - let mut attr = unsafe { attr.assume_init() }; + #[cfg(target_os = "freebsd")] - let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr); + let e = libc::pthread_attr_get_np(libc::pthread_self(), attr.as_mut_ptr()); #[cfg(not(target_os = "freebsd"))] - let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr); + let e = libc::pthread_getattr_np(libc::pthread_self(), attr.as_mut_ptr()); if e == 0 { let mut stackaddr = crate::ptr::null_mut(); let mut stacksize = 0; - assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackaddr, &mut stacksize), 0); + assert_eq!( + libc::pthread_attr_getstack(attr.as_ptr(), &mut stackaddr, &mut stacksize), + 0 + ); ret = Some(stackaddr); } if e == 0 || cfg!(target_os = "freebsd") { - assert_eq!(libc::pthread_attr_destroy(&mut attr), 0); + assert_eq!(libc::pthread_attr_destroy(attr.as_mut_ptr()), 0); } ret } diff --git a/library/std/src/sys/pal/unix/thread.rs b/library/std/src/sys/pal/unix/thread.rs index d476f6600bf4..e23d3d6d647a 100644 --- a/library/std/src/sys/pal/unix/thread.rs +++ b/library/std/src/sys/pal/unix/thread.rs @@ -51,7 +51,6 @@ impl Thread { let mut native: libc::pthread_t = mem::zeroed(); let mut attr: mem::MaybeUninit = mem::MaybeUninit::uninit(); assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); - //let mut attr: libc::pthread_attr_t = unsafe { attr.assume_init() }; #[cfg(target_os = "espidf")] if stack > 0 { From 8fb888555fb54dfd39529bca6f1180c083bfe36f Mon Sep 17 00:00:00 2001 From: Nathan Perry Date: Wed, 5 Feb 2025 18:46:10 -0500 Subject: [PATCH 111/255] core/net: IpAddr*::as_octets() Adds `const` `Ip*Addr::as_octets` methods providing reference access to `Ip*Addr` octets contents. See https://github.com/rust-lang/libs-team/issues/535 for accepted ACP with a more detailed justification. --- library/core/src/net/ip_addr.rs | 60 +++++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/library/core/src/net/ip_addr.rs b/library/core/src/net/ip_addr.rs index b11ba0568535..8e4417ec461b 100644 --- a/library/core/src/net/ip_addr.rs +++ b/library/core/src/net/ip_addr.rs @@ -451,6 +451,28 @@ impl IpAddr { IpAddr::V6(v6) => v6.to_canonical(), } } + + /// Returns the eight-bit integers this address consists of as a slice. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip_as_octets)] + /// + /// use std::net::{Ipv4Addr, Ipv6Addr, IpAddr}; + /// + /// assert_eq!(IpAddr::V4(Ipv4Addr::LOCALHOST).as_octets(), &[127, 0, 0, 1]); + /// assert_eq!(IpAddr::V6(Ipv6Addr::LOCALHOST).as_octets(), + /// &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]) + /// ``` + #[unstable(feature = "ip_as_octets", issue = "137259")] + #[inline] + pub const fn as_octets(&self) -> &[u8] { + match self { + IpAddr::V4(ip) => ip.as_octets().as_slice(), + IpAddr::V6(ip) => ip.as_octets().as_slice(), + } + } } impl Ipv4Addr { @@ -616,6 +638,25 @@ impl Ipv4Addr { Ipv4Addr { octets } } + /// Returns the four eight-bit integers that make up this address + /// as a slice. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip_as_octets)] + /// + /// use std::net::Ipv4Addr; + /// + /// let addr = Ipv4Addr::new(127, 0, 0, 1); + /// assert_eq!(addr.as_octets(), &[127, 0, 0, 1]); + /// ``` + #[unstable(feature = "ip_as_octets", issue = "137259")] + #[inline] + pub const fn as_octets(&self) -> &[u8; 4] { + &self.octets + } + /// Returns [`true`] for the special 'unspecified' address (`0.0.0.0`). /// /// This property is defined in _UNIX Network Programming, Second Edition_, @@ -2001,6 +2042,25 @@ impl Ipv6Addr { pub const fn from_octets(octets: [u8; 16]) -> Ipv6Addr { Ipv6Addr { octets } } + + /// Returns the sixteen eight-bit integers the IPv6 address consists of + /// as a slice. + /// + /// # Examples + /// + /// ``` + /// #![feature(ip_as_octets)] + /// + /// use std::net::Ipv6Addr; + /// + /// assert_eq!(Ipv6Addr::new(0xff00, 0, 0, 0, 0, 0, 0, 0).as_octets(), + /// &[255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]) + /// ``` + #[unstable(feature = "ip_as_octets", issue = "137259")] + #[inline] + pub const fn as_octets(&self) -> &[u8; 16] { + &self.octets + } } /// Writes an Ipv6Addr, conforming to the canonical style described by From 26d6ce76a7b38059146a277d15c007b0eeab834e Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Wed, 19 Feb 2025 09:03:35 +0300 Subject: [PATCH 112/255] add rustc-dev doc about bootstrap tools Signed-off-by: onur-ozkan --- src/doc/rustc-dev-guide/src/SUMMARY.md | 1 + .../writing-tools-in-bootstrap.md | 23 +++++++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 src/doc/rustc-dev-guide/src/building/bootstrapping/writing-tools-in-bootstrap.md diff --git a/src/doc/rustc-dev-guide/src/SUMMARY.md b/src/doc/rustc-dev-guide/src/SUMMARY.md index 91c4aeacbd74..106db508ebbc 100644 --- a/src/doc/rustc-dev-guide/src/SUMMARY.md +++ b/src/doc/rustc-dev-guide/src/SUMMARY.md @@ -75,6 +75,7 @@ - [Prologue](./building/bootstrapping/intro.md) - [What Bootstrapping does](./building/bootstrapping/what-bootstrapping-does.md) - [How Bootstrap does it](./building/bootstrapping/how-bootstrap-does-it.md) +- [Writing tools in Bootstrap](./building/bootstrapping/writing-tools-in-bootstrap.md) - [Debugging bootstrap](./building/bootstrapping/debugging-bootstrap.md) # High-level Compiler Architecture diff --git a/src/doc/rustc-dev-guide/src/building/bootstrapping/writing-tools-in-bootstrap.md b/src/doc/rustc-dev-guide/src/building/bootstrapping/writing-tools-in-bootstrap.md new file mode 100644 index 000000000000..6046d5b133d7 --- /dev/null +++ b/src/doc/rustc-dev-guide/src/building/bootstrapping/writing-tools-in-bootstrap.md @@ -0,0 +1,23 @@ +# Writing tools in Bootstrap + +There are three types of tools you can write in bootstrap: + +- **`Mode::ToolBootstrap`** + Use this for tools that don’t need anything from the in-tree compiler and can run with the stage0 `rustc`. + The output is placed in the "stage0-bootstrap-tools" directory. This mode is for general-purpose tools built + entirely with the stage0 compiler, including target libraries and only works for stage 0. + +- **`Mode::ToolStd`** + Use this for tools that rely on the locally built std. The output goes into the "stageN-tools" directory. + This mode is rarely used, mainly for `compiletest` which requires `libtest`. + +- **`Mode::ToolRustc`** + Use this for tools that depend on both the locally built `rustc` and the target `std`. This is more complex than + the other modes because the tool must be built with the same compiler used for `rustc` and placed in the "stageN-tools" + directory. When you choose `Mode::ToolRustc`, `ToolBuild` implementation takes care of this automatically. + If you need to use the builder’s compiler for something specific, you can get it from `ToolBuildResult`, which is + returned by the tool's [`Step`]. + +Regardless of the tool type you must return `ToolBuildResult` from the tool’s [`Step`] implementation and use `ToolBuild` inside it. + +[`Step`]: https://doc.rust-lang.org/nightly/nightly-rustc/bootstrap/core/builder/trait.Step.html From b78c626a9516f7e8ad6be3e0698f6b6c6fddd286 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 19 Feb 2025 06:54:15 +0000 Subject: [PATCH 113/255] Make fewer crates depend on rustc_ast_ir --- Cargo.lock | 7 ------- compiler/rustc_ast_ir/src/lib.rs | 7 +++++++ compiler/rustc_hir_typeck/Cargo.toml | 1 - compiler/rustc_infer/Cargo.toml | 1 - compiler/rustc_infer/src/traits/structural_impls.rs | 3 +-- compiler/rustc_macros/src/type_visitable.rs | 6 +++--- compiler/rustc_middle/Cargo.toml | 1 - compiler/rustc_middle/src/macros.rs | 2 +- compiler/rustc_middle/src/mir/interpret/error.rs | 3 +-- compiler/rustc_middle/src/traits/solve.rs | 2 +- compiler/rustc_middle/src/ty/generic_args.rs | 4 +--- compiler/rustc_middle/src/ty/mod.rs | 3 +-- compiler/rustc_middle/src/ty/structural_impls.rs | 3 +-- compiler/rustc_middle/src/ty/visit.rs | 2 +- compiler/rustc_next_trait_solver/Cargo.toml | 2 -- .../src/solve/assembly/structural_traits.rs | 3 +-- compiler/rustc_next_trait_solver/src/solve/trait_goals.rs | 5 +++-- compiler/rustc_trait_selection/Cargo.toml | 1 - .../rustc_trait_selection/src/solve/inspect/analyse.rs | 3 +-- compiler/rustc_transmute/Cargo.toml | 2 -- compiler/rustc_ty_utils/Cargo.toml | 1 - compiler/rustc_ty_utils/src/sig_types.rs | 3 +-- compiler/rustc_type_ir/src/lib.rs | 1 + compiler/rustc_type_ir/src/visit.rs | 4 ++-- compiler/rustc_type_ir_macros/src/lib.rs | 6 +++--- 25 files changed, 30 insertions(+), 46 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index bb17717aceb4..048af61e998f 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3748,7 +3748,6 @@ dependencies = [ "itertools", "rustc_abi", "rustc_ast", - "rustc_ast_ir", "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", @@ -3813,7 +3812,6 @@ dependencies = [ name = "rustc_infer" version = "0.0.0" dependencies = [ - "rustc_ast_ir", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", @@ -4004,7 +4002,6 @@ dependencies = [ "rustc_apfloat", "rustc_arena", "rustc_ast", - "rustc_ast_ir", "rustc_attr_parsing", "rustc_data_structures", "rustc_error_messages", @@ -4134,7 +4131,6 @@ name = "rustc_next_trait_solver" version = "0.0.0" dependencies = [ "derive-where", - "rustc_ast_ir", "rustc_data_structures", "rustc_index", "rustc_macros", @@ -4454,7 +4450,6 @@ dependencies = [ "itertools", "rustc_abi", "rustc_ast", - "rustc_ast_ir", "rustc_attr_parsing", "rustc_data_structures", "rustc_errors", @@ -4493,7 +4488,6 @@ version = "0.0.0" dependencies = [ "itertools", "rustc_abi", - "rustc_ast_ir", "rustc_data_structures", "rustc_hir", "rustc_infer", @@ -4509,7 +4503,6 @@ version = "0.0.0" dependencies = [ "itertools", "rustc_abi", - "rustc_ast_ir", "rustc_data_structures", "rustc_errors", "rustc_fluent_macro", diff --git a/compiler/rustc_ast_ir/src/lib.rs b/compiler/rustc_ast_ir/src/lib.rs index ff9d940ce9f2..9884e191ea7b 100644 --- a/compiler/rustc_ast_ir/src/lib.rs +++ b/compiler/rustc_ast_ir/src/lib.rs @@ -1,3 +1,10 @@ +//! Common utilities shared by both `rustc_ast` and `rustc_type_ir`. +//! +//! Don't depend on this crate directly; both of those crates should re-export +//! the functionality. Additionally, if you're in scope of `rustc_middle`, then +//! prefer imports via that too, to avoid needing to directly depend on (e.g.) +//! `rustc_type_ir` for a single import. + // tidy-alphabetical-start #![cfg_attr(feature = "nightly", allow(internal_features))] #![cfg_attr(feature = "nightly", feature(never_type))] diff --git a/compiler/rustc_hir_typeck/Cargo.toml b/compiler/rustc_hir_typeck/Cargo.toml index 1f5acaa58a97..0331a20f95b7 100644 --- a/compiler/rustc_hir_typeck/Cargo.toml +++ b/compiler/rustc_hir_typeck/Cargo.toml @@ -8,7 +8,6 @@ edition = "2021" itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } -rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_infer/Cargo.toml b/compiler/rustc_infer/Cargo.toml index 6d1a2d3de9e3..baf5dbbfd422 100644 --- a/compiler/rustc_infer/Cargo.toml +++ b/compiler/rustc_infer/Cargo.toml @@ -8,7 +8,6 @@ doctest = false [dependencies] # tidy-alphabetical-start -rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_infer/src/traits/structural_impls.rs b/compiler/rustc_infer/src/traits/structural_impls.rs index 31f585c0c9ed..b346e193d0b8 100644 --- a/compiler/rustc_infer/src/traits/structural_impls.rs +++ b/compiler/rustc_infer/src/traits/structural_impls.rs @@ -1,8 +1,7 @@ use std::fmt; -use rustc_ast_ir::try_visit; use rustc_middle::ty::fold::{FallibleTypeFolder, TypeFoldable}; -use rustc_middle::ty::visit::{TypeVisitable, TypeVisitor}; +use rustc_middle::ty::visit::{TypeVisitable, TypeVisitor, try_visit}; use rustc_middle::ty::{self, TyCtxt}; use crate::traits; diff --git a/compiler/rustc_macros/src/type_visitable.rs b/compiler/rustc_macros/src/type_visitable.rs index 527ca26c0eb1..a7906d50d0f2 100644 --- a/compiler/rustc_macros/src/type_visitable.rs +++ b/compiler/rustc_macros/src/type_visitable.rs @@ -36,12 +36,12 @@ pub(super) fn type_visitable_derive( s.add_bounds(synstructure::AddBounds::Generics); let body_visit = s.each(|bind| { quote! { - match ::rustc_ast_ir::visit::VisitorResult::branch( + match ::rustc_middle::ty::visit::VisitorResult::branch( ::rustc_middle::ty::visit::TypeVisitable::visit_with(#bind, __visitor) ) { ::core::ops::ControlFlow::Continue(()) => {}, ::core::ops::ControlFlow::Break(r) => { - return ::rustc_ast_ir::visit::VisitorResult::from_residual(r); + return ::rustc_middle::ty::visit::VisitorResult::from_residual(r); }, } } @@ -56,7 +56,7 @@ pub(super) fn type_visitable_derive( __visitor: &mut __V ) -> __V::Result { match *self { #body_visit } - <__V::Result as ::rustc_ast_ir::visit::VisitorResult>::output() + <__V::Result as ::rustc_middle::ty::visit::VisitorResult>::output() } }, ) diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml index 1b6a174c0932..389c861c3b52 100644 --- a/compiler/rustc_middle/Cargo.toml +++ b/compiler/rustc_middle/Cargo.toml @@ -14,7 +14,6 @@ rustc_abi = { path = "../rustc_abi" } rustc_apfloat = "0.2.0" rustc_arena = { path = "../rustc_arena" } rustc_ast = { path = "../rustc_ast" } -rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_error_messages = { path = "../rustc_error_messages" } # Used for intra-doc links diff --git a/compiler/rustc_middle/src/macros.rs b/compiler/rustc_middle/src/macros.rs index b3064d8fe25c..b5f3a0e1482a 100644 --- a/compiler/rustc_middle/src/macros.rs +++ b/compiler/rustc_middle/src/macros.rs @@ -83,7 +83,7 @@ macro_rules! TrivialTypeTraversalImpls { _: &mut F) -> F::Result { - ::output() + ::output() } } )+ diff --git a/compiler/rustc_middle/src/mir/interpret/error.rs b/compiler/rustc_middle/src/mir/interpret/error.rs index 8861e31b0991..743812e3a20a 100644 --- a/compiler/rustc_middle/src/mir/interpret/error.rs +++ b/compiler/rustc_middle/src/mir/interpret/error.rs @@ -5,7 +5,6 @@ use std::{convert, fmt, mem, ops}; use either::Either; use rustc_abi::{Align, Size, VariantIdx, WrappingRange}; -use rustc_ast_ir::Mutability; use rustc_data_structures::sync::Lock; use rustc_errors::{DiagArgName, DiagArgValue, DiagMessage, ErrorGuaranteed, IntoDiagArg}; use rustc_macros::{HashStable, TyDecodable, TyEncodable}; @@ -16,7 +15,7 @@ use rustc_span::{DUMMY_SP, Span, Symbol}; use super::{AllocId, AllocRange, ConstAllocation, Pointer, Scalar}; use crate::error; use crate::mir::{ConstAlloc, ConstValue}; -use crate::ty::{self, Ty, TyCtxt, ValTree, layout, tls}; +use crate::ty::{self, Mutability, Ty, TyCtxt, ValTree, layout, tls}; #[derive(Debug, Copy, Clone, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] pub enum ErrorHandled { diff --git a/compiler/rustc_middle/src/traits/solve.rs b/compiler/rustc_middle/src/traits/solve.rs index f659bf8125a0..9c74f6263b3c 100644 --- a/compiler/rustc_middle/src/traits/solve.rs +++ b/compiler/rustc_middle/src/traits/solve.rs @@ -1,9 +1,9 @@ -use rustc_ast_ir::try_visit; use rustc_data_structures::intern::Interned; use rustc_macros::HashStable; use rustc_type_ir as ir; pub use rustc_type_ir::solve::*; +use crate::ty::visit::try_visit; use crate::ty::{ self, FallibleTypeFolder, TyCtxt, TypeFoldable, TypeFolder, TypeVisitable, TypeVisitor, }; diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index 56a38a84c9f1..b74ddb817103 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -6,8 +6,6 @@ use std::mem; use std::num::NonZero; use std::ptr::NonNull; -use rustc_ast_ir::visit::VisitorResult; -use rustc_ast_ir::walk_visitable_list; use rustc_data_structures::intern::Interned; use rustc_errors::{DiagArgValue, IntoDiagArg}; use rustc_hir::def_id::DefId; @@ -18,7 +16,7 @@ use smallvec::SmallVec; use crate::ty::codec::{TyDecoder, TyEncoder}; use crate::ty::fold::{FallibleTypeFolder, TypeFoldable}; -use crate::ty::visit::{TypeVisitable, TypeVisitor}; +use crate::ty::visit::{TypeVisitable, TypeVisitor, VisitorResult, walk_visitable_list}; use crate::ty::{ self, ClosureArgs, CoroutineArgs, CoroutineClosureArgs, InlineConstArgs, Lift, List, Ty, TyCtxt, }; diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index c52e774c8b7e..a1d44882e63f 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -27,7 +27,6 @@ pub use intrinsic::IntrinsicDef; use rustc_abi::{Align, FieldIdx, Integer, IntegerType, ReprFlags, ReprOptions, VariantIdx}; use rustc_ast::expand::StrippedCfgItem; use rustc_ast::node_id::NodeMap; -pub use rustc_ast_ir::{Movability, Mutability, try_visit}; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::intern::Interned; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; @@ -48,7 +47,7 @@ pub use rustc_session::lint::RegisteredTools; use rustc_span::hygiene::MacroKind; use rustc_span::{ExpnId, ExpnKind, Ident, Span, Symbol, kw, sym}; pub use rustc_type_ir::relate::VarianceDiagInfo; -pub use rustc_type_ir::*; +pub use rustc_type_ir::{Movability, Mutability, *}; use tracing::{debug, instrument}; pub use vtable::*; use {rustc_ast as ast, rustc_attr_parsing as attr, rustc_hir as hir}; diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 6c15e033bb04..b2286c744020 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -7,13 +7,12 @@ use std::fmt::{self, Debug}; use rustc_abi::TyAndLayout; use rustc_ast::InlineAsmTemplatePiece; -use rustc_ast_ir::try_visit; -use rustc_ast_ir::visit::VisitorResult; use rustc_hir::def::Namespace; use rustc_hir::def_id::LocalDefId; use rustc_span::Span; use rustc_span::source_map::Spanned; use rustc_type_ir::ConstKind; +use rustc_type_ir::visit::{VisitorResult, try_visit}; use super::print::PrettyPrinter; use super::{GenericArg, GenericArgKind, Pattern, Region}; diff --git a/compiler/rustc_middle/src/ty/visit.rs b/compiler/rustc_middle/src/ty/visit.rs index 4efaccefcf74..95256b55bb4a 100644 --- a/compiler/rustc_middle/src/ty/visit.rs +++ b/compiler/rustc_middle/src/ty/visit.rs @@ -2,7 +2,7 @@ use std::ops::ControlFlow; use rustc_data_structures::fx::FxIndexSet; use rustc_type_ir::fold::TypeFoldable; -pub use rustc_type_ir::visit::{TypeSuperVisitable, TypeVisitable, TypeVisitableExt, TypeVisitor}; +pub use rustc_type_ir::visit::*; use crate::ty::{self, Binder, Ty, TyCtxt, TypeFlags}; diff --git a/compiler/rustc_next_trait_solver/Cargo.toml b/compiler/rustc_next_trait_solver/Cargo.toml index 451c215566be..eacb6002f5a4 100644 --- a/compiler/rustc_next_trait_solver/Cargo.toml +++ b/compiler/rustc_next_trait_solver/Cargo.toml @@ -6,7 +6,6 @@ edition = "2021" [dependencies] # tidy-alphabetical-start derive-where = "1.2.7" -rustc_ast_ir = { path = "../rustc_ast_ir", default-features = false } rustc_data_structures = { path = "../rustc_data_structures", optional = true } rustc_index = { path = "../rustc_index", default-features = false } rustc_macros = { path = "../rustc_macros", optional = true } @@ -22,7 +21,6 @@ nightly = [ "dep:rustc_data_structures", "dep:rustc_macros", "dep:rustc_serialize", - "rustc_ast_ir/nightly", "rustc_index/nightly", "rustc_type_ir/nightly", ] diff --git a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs index 082c356cc5fb..dc0f4c4483e6 100644 --- a/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs +++ b/compiler/rustc_next_trait_solver/src/solve/assembly/structural_traits.rs @@ -2,12 +2,11 @@ //! traits, `Copy`/`Clone`. use derive_where::derive_where; -use rustc_ast_ir::{Movability, Mutability}; use rustc_type_ir::data_structures::HashMap; use rustc_type_ir::fold::{TypeFoldable, TypeFolder, TypeSuperFoldable}; use rustc_type_ir::inherent::*; use rustc_type_ir::lang_items::TraitSolverLangItem; -use rustc_type_ir::{self as ty, Interner, Upcast as _, elaborate}; +use rustc_type_ir::{self as ty, Interner, Movability, Mutability, Upcast as _, elaborate}; use rustc_type_ir_macros::{TypeFoldable_Generic, TypeVisitable_Generic}; use tracing::instrument; diff --git a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs index dabfa5cc04c8..1665dbb30189 100644 --- a/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs +++ b/compiler/rustc_next_trait_solver/src/solve/trait_goals.rs @@ -1,13 +1,14 @@ //! Dealing with trait goals, i.e. `T: Trait<'a, U>`. -use rustc_ast_ir::Movability; use rustc_type_ir::data_structures::IndexSet; use rustc_type_ir::fast_reject::DeepRejectCtxt; use rustc_type_ir::inherent::*; use rustc_type_ir::lang_items::TraitSolverLangItem; use rustc_type_ir::solve::CanonicalResponse; use rustc_type_ir::visit::TypeVisitableExt as _; -use rustc_type_ir::{self as ty, Interner, TraitPredicate, TypingMode, Upcast as _, elaborate}; +use rustc_type_ir::{ + self as ty, Interner, Movability, TraitPredicate, TypingMode, Upcast as _, elaborate, +}; use tracing::{instrument, trace}; use crate::delegate::SolverDelegate; diff --git a/compiler/rustc_trait_selection/Cargo.toml b/compiler/rustc_trait_selection/Cargo.toml index b13a753c4ed1..2f2361609a26 100644 --- a/compiler/rustc_trait_selection/Cargo.toml +++ b/compiler/rustc_trait_selection/Cargo.toml @@ -8,7 +8,6 @@ edition = "2021" itertools = "0.12" rustc_abi = { path = "../rustc_abi" } rustc_ast = { path = "../rustc_ast" } -rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_attr_parsing = { path = "../rustc_attr_parsing" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } diff --git a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs index 9fbc1d64d742..4b1bc316d5f1 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs @@ -11,12 +11,11 @@ use std::assert_matches::assert_matches; -use rustc_ast_ir::try_visit; -use rustc_ast_ir::visit::VisitorResult; use rustc_infer::infer::{DefineOpaqueTypes, InferCtxt, InferOk}; use rustc_macros::extension; use rustc_middle::traits::ObligationCause; use rustc_middle::traits::solve::{Certainty, Goal, GoalSource, NoSolution, QueryResult}; +use rustc_middle::ty::visit::{VisitorResult, try_visit}; use rustc_middle::ty::{TyCtxt, TypeFoldable}; use rustc_middle::{bug, ty}; use rustc_next_trait_solver::resolve::EagerResolver; diff --git a/compiler/rustc_transmute/Cargo.toml b/compiler/rustc_transmute/Cargo.toml index 6a98be185039..94c7695117c6 100644 --- a/compiler/rustc_transmute/Cargo.toml +++ b/compiler/rustc_transmute/Cargo.toml @@ -6,7 +6,6 @@ edition = "2021" [dependencies] # tidy-alphabetical-start rustc_abi = { path = "../rustc_abi", optional = true } -rustc_ast_ir = { path = "../rustc_ast_ir", optional = true } rustc_data_structures = { path = "../rustc_data_structures" } rustc_hir = { path = "../rustc_hir", optional = true } rustc_infer = { path = "../rustc_infer", optional = true } @@ -19,7 +18,6 @@ tracing = "0.1" [features] rustc = [ "dep:rustc_abi", - "dep:rustc_ast_ir", "dep:rustc_hir", "dep:rustc_infer", "dep:rustc_macros", diff --git a/compiler/rustc_ty_utils/Cargo.toml b/compiler/rustc_ty_utils/Cargo.toml index f88f8c38d508..ab903c6ed73f 100644 --- a/compiler/rustc_ty_utils/Cargo.toml +++ b/compiler/rustc_ty_utils/Cargo.toml @@ -7,7 +7,6 @@ edition = "2021" # tidy-alphabetical-start itertools = "0.12" rustc_abi = { path = "../rustc_abi" } -rustc_ast_ir = { path = "../rustc_ast_ir" } rustc_data_structures = { path = "../rustc_data_structures" } rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } diff --git a/compiler/rustc_ty_utils/src/sig_types.rs b/compiler/rustc_ty_utils/src/sig_types.rs index 64e5a609b2f6..d6f9277813d1 100644 --- a/compiler/rustc_ty_utils/src/sig_types.rs +++ b/compiler/rustc_ty_utils/src/sig_types.rs @@ -1,11 +1,10 @@ //! This module contains helpers for walking all types of //! a signature, while preserving spans as much as possible -use rustc_ast_ir::try_visit; -use rustc_ast_ir::visit::VisitorResult; use rustc_hir::def::DefKind; use rustc_hir::def_id::LocalDefId; use rustc_middle::span_bug; +use rustc_middle::ty::visit::{VisitorResult, try_visit}; use rustc_middle::ty::{self, TyCtxt}; use rustc_span::Span; use rustc_type_ir::visit::TypeVisitable; diff --git a/compiler/rustc_type_ir/src/lib.rs b/compiler/rustc_type_ir/src/lib.rs index e7ca24178cbf..15ef4e7d6c1d 100644 --- a/compiler/rustc_type_ir/src/lib.rs +++ b/compiler/rustc_type_ir/src/lib.rs @@ -74,6 +74,7 @@ pub use opaque_ty::*; pub use predicate::*; pub use predicate_kind::*; pub use region_kind::*; +pub use rustc_ast_ir::{Movability, Mutability, Pinnedness}; pub use ty_info::*; pub use ty_kind::*; pub use upcast::*; diff --git a/compiler/rustc_type_ir/src/visit.rs b/compiler/rustc_type_ir/src/visit.rs index a12e9856304a..f7d6b2060395 100644 --- a/compiler/rustc_type_ir/src/visit.rs +++ b/compiler/rustc_type_ir/src/visit.rs @@ -45,8 +45,8 @@ use std::fmt; use std::ops::ControlFlow; use std::sync::Arc; -use rustc_ast_ir::visit::VisitorResult; -use rustc_ast_ir::{try_visit, walk_visitable_list}; +pub use rustc_ast_ir::visit::VisitorResult; +pub use rustc_ast_ir::{try_visit, walk_visitable_list}; use rustc_index::{Idx, IndexVec}; use smallvec::SmallVec; use thin_vec::ThinVec; diff --git a/compiler/rustc_type_ir_macros/src/lib.rs b/compiler/rustc_type_ir_macros/src/lib.rs index ede6dcd469cc..640299c21679 100644 --- a/compiler/rustc_type_ir_macros/src/lib.rs +++ b/compiler/rustc_type_ir_macros/src/lib.rs @@ -45,12 +45,12 @@ fn type_visitable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::Tok s.add_bounds(synstructure::AddBounds::Fields); let body_visit = s.each(|bind| { quote! { - match ::rustc_ast_ir::visit::VisitorResult::branch( + match ::rustc_type_ir::visit::VisitorResult::branch( ::rustc_type_ir::visit::TypeVisitable::visit_with(#bind, __visitor) ) { ::core::ops::ControlFlow::Continue(()) => {}, ::core::ops::ControlFlow::Break(r) => { - return ::rustc_ast_ir::visit::VisitorResult::from_residual(r); + return ::rustc_type_ir::visit::VisitorResult::from_residual(r); }, } } @@ -65,7 +65,7 @@ fn type_visitable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::Tok __visitor: &mut __V ) -> __V::Result { match *self { #body_visit } - <__V::Result as ::rustc_ast_ir::visit::VisitorResult>::output() + <__V::Result as ::rustc_type_ir::visit::VisitorResult>::output() } }, ) From 047e77cff13f5c3282486247c9791b484f1f53de Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 19 Feb 2025 07:19:25 +0000 Subject: [PATCH 114/255] Register USAGE_OF_TYPE_IR_INHERENT, remove inherent usages --- compiler/rustc_lint/src/lib.rs | 1 + compiler/rustc_monomorphize/src/mono_checks/abi_check.rs | 5 ++--- .../src/error_reporting/infer/need_type_info.rs | 3 +-- 3 files changed, 4 insertions(+), 5 deletions(-) diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index c8de5e877531..044a613dad62 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -641,6 +641,7 @@ fn register_internals(store: &mut LintStore) { LintId::of(LINT_PASS_IMPL_WITHOUT_MACRO), LintId::of(USAGE_OF_QUALIFIED_TY), LintId::of(NON_GLOB_IMPORT_OF_TYPE_IR_INHERENT), + LintId::of(USAGE_OF_TYPE_IR_INHERENT), LintId::of(BAD_OPT_ACCESS), LintId::of(SPAN_USE_EQ_CTXT), ], diff --git a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs index 36cd3e00b76c..8e93bdc61d04 100644 --- a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs +++ b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs @@ -1,9 +1,8 @@ //! This module ensures that if a function's ABI requires a particular target feature, //! that target feature is enabled both on the callee and all callers. -use rustc_abi::{BackendRepr, RegKind}; +use rustc_abi::{BackendRepr, ExternAbi, RegKind}; use rustc_hir::CRATE_HIR_ID; use rustc_middle::mir::{self, traversal}; -use rustc_middle::ty::inherent::*; use rustc_middle::ty::{self, Instance, InstanceKind, Ty, TyCtxt}; use rustc_session::lint::builtin::ABI_UNSUPPORTED_VECTOR_TYPES; use rustc_span::def_id::DefId; @@ -97,7 +96,7 @@ fn check_call_site_abi<'tcx>( span: Span, caller: InstanceKind<'tcx>, ) { - if callee.fn_sig(tcx).abi().is_rust() { + if callee.fn_sig(tcx).abi() == ExternAbi::Rust { // "Rust" ABI never passes arguments in vector registers. return; } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs index 2bb38f3ed14a..42b8199cb265 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs @@ -18,7 +18,6 @@ use rustc_middle::ty::{ TypeFoldable, TypeFolder, TypeSuperFoldable, TypeckResults, }; use rustc_span::{BytePos, DUMMY_SP, FileName, Ident, Span, sym}; -use rustc_type_ir::inherent::*; use rustc_type_ir::visit::TypeVisitableExt; use tracing::{debug, instrument, warn}; @@ -217,7 +216,7 @@ impl<'a, 'tcx> TypeFolder> for ClosureEraser<'a, 'tcx> { // `_` because then we'd end up with `Vec<_, _>`, instead of // `Vec<_>`. arg - } else if let GenericArgKind::Type(_) = arg.kind() { + } else if let GenericArgKind::Type(_) = arg.unpack() { // We don't replace lifetime or const params, only type params. self.new_infer().into() } else { From 73b6482ead710656c14fbb86011aa0e7d65461fd Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Tue, 18 Feb 2025 14:21:29 +0100 Subject: [PATCH 115/255] x86_win64 ABI: do not use xmm0 with softfloat ABI --- .../rustc_target/src/callconv/x86_win64.rs | 16 +++++--- tests/assembly/x86_64-windows-i128-abi.rs | 26 +++++++++++++ tests/codegen/i128-x86-callconv.rs | 38 +++++++++++-------- 3 files changed, 59 insertions(+), 21 deletions(-) create mode 100644 tests/assembly/x86_64-windows-i128-abi.rs diff --git a/compiler/rustc_target/src/callconv/x86_win64.rs b/compiler/rustc_target/src/callconv/x86_win64.rs index 23ef2cf82840..2ef5127de04a 100644 --- a/compiler/rustc_target/src/callconv/x86_win64.rs +++ b/compiler/rustc_target/src/callconv/x86_win64.rs @@ -1,11 +1,11 @@ use rustc_abi::{BackendRepr, Float, Integer, Primitive, RegKind, Size}; use crate::callconv::{ArgAbi, FnAbi, Reg}; -use crate::spec::HasTargetSpec; +use crate::spec::{HasTargetSpec, RustcAbi}; // Win64 ABI: https://docs.microsoft.com/en-us/cpp/build/parameter-passing -pub(crate) fn compute_abi_info(_cx: &impl HasTargetSpec, fn_abi: &mut FnAbi<'_, Ty>) { +pub(crate) fn compute_abi_info(cx: &impl HasTargetSpec, fn_abi: &mut FnAbi<'_, Ty>) { let fixup = |a: &mut ArgAbi<'_, Ty>, is_ret: bool| { match a.layout.backend_repr { BackendRepr::Uninhabited | BackendRepr::Memory { sized: false } => {} @@ -24,10 +24,14 @@ pub(crate) fn compute_abi_info(_cx: &impl HasTargetSpec, fn_abi: &mut FnAbi< } BackendRepr::Scalar(scalar) => { if is_ret && matches!(scalar.primitive(), Primitive::Int(Integer::I128, _)) { - // `i128` is returned in xmm0 by Clang and GCC - // FIXME(#134288): This may change for the `-msvc` targets in the future. - let reg = Reg { kind: RegKind::Vector, size: Size::from_bits(128) }; - a.cast_to(reg); + if cx.target_spec().rustc_abi == Some(RustcAbi::X86Softfloat) { + // Use the native `i128` LLVM type for the softfloat ABI -- in other words, adjust nothing. + } else { + // `i128` is returned in xmm0 by Clang and GCC + // FIXME(#134288): This may change for the `-msvc` targets in the future. + let reg = Reg { kind: RegKind::Vector, size: Size::from_bits(128) }; + a.cast_to(reg); + } } else if a.layout.size.bytes() > 8 && !matches!(scalar.primitive(), Primitive::Float(Float::F128)) { diff --git a/tests/assembly/x86_64-windows-i128-abi.rs b/tests/assembly/x86_64-windows-i128-abi.rs new file mode 100644 index 000000000000..d2aefb7daa64 --- /dev/null +++ b/tests/assembly/x86_64-windows-i128-abi.rs @@ -0,0 +1,26 @@ +//@ assembly-output: emit-asm +//@ add-core-stubs +//@ revisions: msvc softfloat +//@ compile-flags: -Copt-level=3 +//@[msvc] compile-flags: --target x86_64-pc-windows-msvc +//@[msvc] needs-llvm-components: x86 +//@[softfloat] compile-flags: --target x86_64-unknown-uefi +//@[softfloat] needs-llvm-components: x86 + +#![feature(no_core)] +#![no_core] +#![crate_type = "lib"] + +extern crate minicore; +use minicore::*; + +// CHECK-LABEL: ret_i128 +// Hardfloat targets return via xmm0, softfloat targets via rax and rdx. +// msvc: movaps {{.*}}, %xmm0 +// softfloat: movq (%[[INPUT:.*]]), %rax +// softfloat-NEXT: movq 8(%[[INPUT]]), %rdx +// CHECK-NEXT: retq +#[no_mangle] +pub extern "C" fn ret_i128(x: &i128) -> i128 { + *x +} diff --git a/tests/codegen/i128-x86-callconv.rs b/tests/codegen/i128-x86-callconv.rs index 9a9c9002fc02..41c30c09c1ac 100644 --- a/tests/codegen/i128-x86-callconv.rs +++ b/tests/codegen/i128-x86-callconv.rs @@ -4,13 +4,18 @@ //@ compile-flags: -Copt-level=1 //@ add-core-stubs -//@ revisions: MSVC MINGW +//@ revisions: MSVC MINGW softfloat //@ [MSVC] needs-llvm-components: x86 -//@ [MINGW] needs-llvm-components: x86 //@ [MSVC] compile-flags: --target x86_64-pc-windows-msvc -//@ [MINGW] compile-flags: --target x86_64-pc-windows-gnu +// Use `WIN` as a common prefix for MSVC and MINGW but *not* the softfloat test. //@ [MSVC] filecheck-flags: --check-prefix=WIN +//@ [MINGW] needs-llvm-components: x86 +//@ [MINGW] compile-flags: --target x86_64-pc-windows-gnu //@ [MINGW] filecheck-flags: --check-prefix=WIN +// The `x86_64-unknown-uefi` target also uses the Windows calling convention, +// but does not have SSE registers available. +//@ [softfloat] needs-llvm-components: x86 +//@ [softfloat] compile-flags: --target x86_64-unknown-uefi #![crate_type = "lib"] #![no_std] @@ -28,24 +33,26 @@ extern "C" { pub extern "C" fn pass(_arg0: u32, arg1: i128) { // CHECK-LABEL: @pass( // i128 is passed indirectly on Windows. It should load the pointer to the stack and pass - // a pointer to that allocation. - // WIN-SAME: %_arg0, ptr{{.*}} %arg1) - // WIN: [[PASS:%[_0-9]+]] = alloca [16 x i8], align 16 - // WIN: [[LOADED:%[_0-9]+]] = load i128, ptr %arg1 - // WIN: store i128 [[LOADED]], ptr [[PASS]] - // WIN: call void @extern_call + // a pointer to that allocation. The softfloat ABI works the same. + // CHECK-SAME: %_arg0, ptr{{.*}} %arg1) + // CHECK: [[PASS:%[_0-9]+]] = alloca [16 x i8], align 16 + // CHECK: [[LOADED:%[_0-9]+]] = load i128, ptr %arg1 + // CHECK: store i128 [[LOADED]], ptr [[PASS]] + // CHECK: call void @extern_call unsafe { extern_call(arg1) }; } // Check that we produce the correct return ABI #[no_mangle] pub extern "C" fn ret(_arg0: u32, arg1: i128) -> i128 { - // CHECK-LABEL: @ret( + // WIN-LABEL: @ret( // i128 is returned in xmm0 on Windows // FIXME(#134288): This may change for the `-msvc` targets in the future. // WIN-SAME: i32{{.*}} %_arg0, ptr{{.*}} %arg1) // WIN: [[LOADED:%[_0-9]+]] = load <16 x i8>, ptr %arg1 // WIN-NEXT: ret <16 x i8> [[LOADED]] + // The softfloat ABI returns this indirectly. + // softfloat-LABEL: i128 @ret(i32{{.*}} %_arg0, ptr{{.*}} %arg1) arg1 } @@ -57,6 +64,7 @@ pub extern "C" fn forward(dst: *mut i128) { // WIN: [[RETURNED:%[_0-9]+]] = tail call <16 x i8> @extern_ret() // WIN: store <16 x i8> [[RETURNED]], ptr %dst // WIN: ret void + // softfloat: [[RETURNED:%[_0-9]+]] = tail call {{.*}}i128 @extern_ret() unsafe { *dst = extern_ret() }; } @@ -70,10 +78,10 @@ struct RetAggregate { pub extern "C" fn ret_aggregate(_arg0: u32, arg1: i128) -> RetAggregate { // CHECK-LABEL: @ret_aggregate( // Aggregates should also be returned indirectly - // WIN-SAME: ptr{{.*}}sret([32 x i8]){{.*}}[[RET:%[_0-9]+]], i32{{.*}}%_arg0, ptr{{.*}}%arg1) - // WIN: [[LOADED:%[_0-9]+]] = load i128, ptr %arg1 - // WIN: [[GEP:%[_0-9]+]] = getelementptr{{.*}}, ptr [[RET]] - // WIN: store i128 [[LOADED]], ptr [[GEP]] - // WIN: ret void + // CHECK-SAME: ptr{{.*}}sret([32 x i8]){{.*}}[[RET:%[_0-9]+]], i32{{.*}}%_arg0, ptr{{.*}}%arg1) + // CHECK: [[LOADED:%[_0-9]+]] = load i128, ptr %arg1 + // CHECK: [[GEP:%[_0-9]+]] = getelementptr{{.*}}, ptr [[RET]] + // CHECK: store i128 [[LOADED]], ptr [[GEP]] + // CHECK: ret void RetAggregate { a: 1, b: arg1 } } From 3ad847779ec12875a96c563dadb63493b28856c0 Mon Sep 17 00:00:00 2001 From: Tommaso Allevi Date: Wed, 19 Feb 2025 09:17:18 +0100 Subject: [PATCH 116/255] Update library/std/src/fs.rs Co-authored-by: Amanieu d'Antras --- library/std/src/fs.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index 5631c3e0156c..2aa00c0c2948 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -2505,7 +2505,7 @@ pub fn rename, Q: AsRef>(from: P, to: Q) -> io::Result<()> /// * `from` does not exist. /// * The current process does not have the permission rights to read /// `from` or write `to`. -/// * The parent folder of `to` doesn't exists +/// * The parent directory of `to` doesn't exist. /// /// # Examples /// From cee430b2ce152092d14e7b8832a725582b4bcf64 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 19 Feb 2025 14:39:09 +1100 Subject: [PATCH 117/255] Add `super_local` method to the MIR visitors. `visit_local` is the only method that doesn't call a corresponding `super_local` method. This is valid, because `super_local` would be empty. But it's inconsistent with every other case; we have multiple other empty `super` methods: `super_span`, `super_ty`, etc. This commit adds an empty `super_local` and makes `visit_local` call it. --- compiler/rustc_middle/src/mir/visit.rs | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 8ad88fbda7c8..35906009618c 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -270,10 +270,12 @@ macro_rules! make_mir_visitor { fn visit_local( &mut self, - _local: $(& $mutability)? Local, - _context: PlaceContext, - _location: Location, - ) {} + local: $(& $mutability)? Local, + context: PlaceContext, + location: Location, + ) { + self.super_local(local, context, location) + } fn visit_source_scope( &mut self, @@ -868,6 +870,14 @@ macro_rules! make_mir_visitor { } } + fn super_local( + &mut self, + _local: $(& $mutability)? Local, + _context: PlaceContext, + _location: Location, + ) { + } + fn super_var_debug_info( &mut self, var_debug_info: & $($mutability)? VarDebugInfo<'tcx> From 311e8d3e5dbcd0db9ca478f18ed0f8324a5e750e Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 19 Feb 2025 15:52:05 +1100 Subject: [PATCH 118/255] Remove `MirVisitable`. The `MirVisitable` trait is just a complicated way to visit either a statement or a terminator. (And its impl for `Terminator` is unused.) It has a single use. This commit removes it, replacing it with an if/else, which is shorter and simpler. --- .../src/diagnostics/find_use.rs | 34 ++++++++++--------- compiler/rustc_middle/src/mir/mod.rs | 5 --- compiler/rustc_middle/src/mir/visit.rs | 22 ------------ 3 files changed, 18 insertions(+), 43 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/find_use.rs b/compiler/rustc_borrowck/src/diagnostics/find_use.rs index 26a090f5579c..96f48840468e 100644 --- a/compiler/rustc_borrowck/src/diagnostics/find_use.rs +++ b/compiler/rustc_borrowck/src/diagnostics/find_use.rs @@ -1,7 +1,7 @@ use std::collections::VecDeque; use rustc_data_structures::fx::FxIndexSet; -use rustc_middle::mir::visit::{MirVisitable, PlaceContext, Visitor}; +use rustc_middle::mir::visit::{PlaceContext, Visitor}; use rustc_middle::mir::{self, Body, Local, Location}; use rustc_middle::ty::{RegionVid, TyCtxt}; @@ -45,7 +45,22 @@ impl<'a, 'tcx> UseFinder<'a, 'tcx> { let block_data = &self.body[p.block]; - match self.def_use(p, block_data.visitable(p.statement_index)) { + let mut visitor = DefUseVisitor { + body: self.body, + tcx: self.tcx, + region_vid: self.region_vid, + def_use_result: None, + }; + + let is_statement = p.statement_index < block_data.statements.len(); + + if is_statement { + visitor.visit_statement(&block_data.statements[p.statement_index], p); + } else { + visitor.visit_terminator(block_data.terminator.as_ref().unwrap(), p); + } + + match visitor.def_use_result { Some(DefUseResult::Def) => {} Some(DefUseResult::UseLive { local }) => { @@ -57,7 +72,7 @@ impl<'a, 'tcx> UseFinder<'a, 'tcx> { } None => { - if p.statement_index < block_data.statements.len() { + if is_statement { queue.push_back(p.successor_within_block()); } else { queue.extend( @@ -77,19 +92,6 @@ impl<'a, 'tcx> UseFinder<'a, 'tcx> { None } - - fn def_use(&self, location: Location, thing: &dyn MirVisitable<'tcx>) -> Option { - let mut visitor = DefUseVisitor { - body: self.body, - tcx: self.tcx, - region_vid: self.region_vid, - def_use_result: None, - }; - - thing.apply(location, &mut visitor); - - visitor.def_use_result - } } struct DefUseVisitor<'a, 'tcx> { diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 528da4ca0577..ff493fa65a6a 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -32,7 +32,6 @@ use tracing::{debug, trace}; pub use self::query::*; use self::visit::TyContext; use crate::mir::interpret::{AllocRange, Scalar}; -use crate::mir::visit::MirVisitable; use crate::ty::codec::{TyDecoder, TyEncoder}; use crate::ty::print::{FmtPrinter, Printer, pretty_print_const, with_no_trimmed_paths}; use crate::ty::visit::TypeVisitableExt; @@ -1364,10 +1363,6 @@ impl<'tcx> BasicBlockData<'tcx> { self.terminator.as_mut().expect("invalid terminator state") } - pub fn visitable(&self, index: usize) -> &dyn MirVisitable<'tcx> { - if index < self.statements.len() { &self.statements[index] } else { &self.terminator } - } - /// Does the block have no statements and an unreachable terminator? #[inline] pub fn is_empty_unreachable(&self) -> bool { diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 35906009618c..9c5c0862261c 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -1265,28 +1265,6 @@ macro_rules! visit_place_fns { make_mir_visitor!(Visitor,); make_mir_visitor!(MutVisitor, mut); -pub trait MirVisitable<'tcx> { - fn apply(&self, location: Location, visitor: &mut dyn Visitor<'tcx>); -} - -impl<'tcx> MirVisitable<'tcx> for Statement<'tcx> { - fn apply(&self, location: Location, visitor: &mut dyn Visitor<'tcx>) { - visitor.visit_statement(self, location) - } -} - -impl<'tcx> MirVisitable<'tcx> for Terminator<'tcx> { - fn apply(&self, location: Location, visitor: &mut dyn Visitor<'tcx>) { - visitor.visit_terminator(self, location) - } -} - -impl<'tcx> MirVisitable<'tcx> for Option> { - fn apply(&self, location: Location, visitor: &mut dyn Visitor<'tcx>) { - visitor.visit_terminator(self.as_ref().unwrap(), location) - } -} - /// Extra information passed to `visit_ty` and friends to give context /// about where the type etc appears. #[derive(Copy, Clone, Debug, Hash, Eq, PartialEq)] From 5bb37ce76409f2e2b03d7b7b44b6fd129ea7b02d Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 19 Feb 2025 14:56:46 +1100 Subject: [PATCH 119/255] Improve formatting within `make_mir_visitor` macro body. rustfmt doesn't touch it because it's a macro body, but it's large enough that the misformatting is annoying. This commit improves it. The most common problems fixed: - Unnecessary multi-line patterns reduced to one line. - Multi-line function headers adjusted so the parameter indentation doesn't depend on the length of the function name. (This is Rust code, not C.) - `|` used at the start of lines, not the end. - More consistent formatting of empty function bodies. - Overly long lines are broken. --- compiler/rustc_middle/src/mir/visit.rs | 268 ++++++++++++------------- 1 file changed, 127 insertions(+), 141 deletions(-) diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 9c5c0862261c..193806f238b1 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -294,9 +294,11 @@ macro_rules! make_mir_visitor { super_body!(self, body, $($mutability, true)?); } - fn super_basic_block_data(&mut self, - block: BasicBlock, - data: & $($mutability)? BasicBlockData<'tcx>) { + fn super_basic_block_data( + &mut self, + block: BasicBlock, + data: & $($mutability)? BasicBlockData<'tcx>) + { let BasicBlockData { statements, terminator, @@ -341,24 +343,24 @@ macro_rules! make_mir_visitor { match callee_def { ty::InstanceKind::Item(_def_id) => {} - ty::InstanceKind::Intrinsic(_def_id) | - ty::InstanceKind::VTableShim(_def_id) | - ty::InstanceKind::ReifyShim(_def_id, _) | - ty::InstanceKind::Virtual(_def_id, _) | - ty::InstanceKind::ThreadLocalShim(_def_id) | - ty::InstanceKind::ClosureOnceShim { call_once: _def_id, track_caller: _ } | - ty::InstanceKind::ConstructCoroutineInClosureShim { + ty::InstanceKind::Intrinsic(_def_id) + | ty::InstanceKind::VTableShim(_def_id) + | ty::InstanceKind::ReifyShim(_def_id, _) + | ty::InstanceKind::Virtual(_def_id, _) + | ty::InstanceKind::ThreadLocalShim(_def_id) + | ty::InstanceKind::ClosureOnceShim { call_once: _def_id, track_caller: _ } + | ty::InstanceKind::ConstructCoroutineInClosureShim { coroutine_closure_def_id: _def_id, receiver_by_ref: _, - } | - ty::InstanceKind::AsyncDropGlueCtorShim(_def_id, None) | - ty::InstanceKind::DropGlue(_def_id, None) => {} + } + | ty::InstanceKind::AsyncDropGlueCtorShim(_def_id, None) + | ty::InstanceKind::DropGlue(_def_id, None) => {} - ty::InstanceKind::FnPtrShim(_def_id, ty) | - ty::InstanceKind::DropGlue(_def_id, Some(ty)) | - ty::InstanceKind::CloneShim(_def_id, ty) | - ty::InstanceKind::FnPtrAddrShim(_def_id, ty) | - ty::InstanceKind::AsyncDropGlueCtorShim(_def_id, Some(ty)) => { + ty::InstanceKind::FnPtrShim(_def_id, ty) + | ty::InstanceKind::DropGlue(_def_id, Some(ty)) + | ty::InstanceKind::CloneShim(_def_id, ty) + | ty::InstanceKind::FnPtrAddrShim(_def_id, ty) + | ty::InstanceKind::AsyncDropGlueCtorShim(_def_id, Some(ty)) => { // FIXME(eddyb) use a better `TyContext` here. self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); } @@ -370,19 +372,16 @@ macro_rules! make_mir_visitor { } } - fn super_statement(&mut self, - statement: & $($mutability)? Statement<'tcx>, - location: Location) { - let Statement { - source_info, - kind, - } = statement; + fn super_statement( + &mut self, + statement: & $($mutability)? Statement<'tcx>, + location: Location + ) { + let Statement { source_info, kind } = statement; self.visit_source_info(source_info); match kind { - StatementKind::Assign( - box (place, rvalue) - ) => { + StatementKind::Assign(box (place, rvalue)) => { self.visit_assign(place, rvalue, location); } StatementKind::FakeRead(box (_, place)) => { @@ -430,11 +429,13 @@ macro_rules! make_mir_visitor { location ); } - StatementKind::AscribeUserType( - box (place, user_ty), - variance - ) => { - self.visit_ascribe_user_ty(place, $(& $mutability)? *variance, user_ty, location); + StatementKind::AscribeUserType(box (place, user_ty), variance) => { + self.visit_ascribe_user_ty( + place, + $(& $mutability)? *variance, + user_ty, + location + ); } StatementKind::Coverage(coverage) => { self.visit_coverage( @@ -445,7 +446,11 @@ macro_rules! make_mir_visitor { StatementKind::Intrinsic(box ref $($mutability)? intrinsic) => { match intrinsic { NonDivergingIntrinsic::Assume(op) => self.visit_operand(op, location), - NonDivergingIntrinsic::CopyNonOverlapping(CopyNonOverlapping { src, dst, count }) => { + NonDivergingIntrinsic::CopyNonOverlapping(CopyNonOverlapping { + src, + dst, + count + }) => { self.visit_operand(src, location); self.visit_operand(dst, location); self.visit_operand(count, location); @@ -458,10 +463,12 @@ macro_rules! make_mir_visitor { } } - fn super_assign(&mut self, - place: &$($mutability)? Place<'tcx>, - rvalue: &$($mutability)? Rvalue<'tcx>, - location: Location) { + fn super_assign( + &mut self, + place: &$($mutability)? Place<'tcx>, + rvalue: &$($mutability)? Rvalue<'tcx>, + location: Location + ) { self.visit_place( place, PlaceContext::MutatingUse(MutatingUseContext::Store), @@ -470,20 +477,22 @@ macro_rules! make_mir_visitor { self.visit_rvalue(rvalue, location); } - fn super_terminator(&mut self, - terminator: &$($mutability)? Terminator<'tcx>, - location: Location) { + fn super_terminator( + &mut self, + terminator: &$($mutability)? Terminator<'tcx>, + location: Location + ) { let Terminator { source_info, kind } = terminator; self.visit_source_info(source_info); match kind { - TerminatorKind::Goto { .. } | - TerminatorKind::UnwindResume | - TerminatorKind::UnwindTerminate(_) | - TerminatorKind::CoroutineDrop | - TerminatorKind::Unreachable | - TerminatorKind::FalseEdge { .. } | - TerminatorKind::FalseUnwind { .. } => {} + TerminatorKind::Goto { .. } + | TerminatorKind::UnwindResume + | TerminatorKind::UnwindTerminate(_) + | TerminatorKind::CoroutineDrop + | TerminatorKind::Unreachable + | TerminatorKind::FalseEdge { .. } + | TerminatorKind::FalseUnwind { .. } => {} TerminatorKind::Return => { // `return` logically moves from the return place `_0`. Note that the place @@ -502,19 +511,11 @@ macro_rules! make_mir_visitor { ); } - TerminatorKind::SwitchInt { - discr, - targets: _ - } => { + TerminatorKind::SwitchInt { discr, targets: _ } => { self.visit_operand(discr, location); } - TerminatorKind::Drop { - place, - target: _, - unwind: _, - replace: _, - } => { + TerminatorKind::Drop { place, target: _, unwind: _, replace: _ } => { self.visit_place( place, PlaceContext::MutatingUse(MutatingUseContext::Drop), @@ -543,11 +544,7 @@ macro_rules! make_mir_visitor { ); } - TerminatorKind::TailCall { - func, - args, - fn_span, - } => { + TerminatorKind::TailCall { func, args, fn_span } => { self.visit_span($(& $mutability)? *fn_span); self.visit_operand(func, location); for arg in args { @@ -555,23 +552,12 @@ macro_rules! make_mir_visitor { } }, - TerminatorKind::Assert { - cond, - expected: _, - msg, - target: _, - unwind: _, - } => { + TerminatorKind::Assert { cond, expected: _, msg, target: _, unwind: _ } => { self.visit_operand(cond, location); self.visit_assert_message(msg, location); } - TerminatorKind::Yield { - value, - resume: _, - resume_arg, - drop: _, - } => { + TerminatorKind::Yield { value, resume: _, resume_arg, drop: _ } => { self.visit_operand(value, location); self.visit_place( resume_arg, @@ -624,9 +610,11 @@ macro_rules! make_mir_visitor { } } - fn super_assert_message(&mut self, - msg: & $($mutability)? AssertMessage<'tcx>, - location: Location) { + fn super_assert_message( + &mut self, + msg: & $($mutability)? AssertMessage<'tcx>, + location: Location + ) { use crate::mir::AssertKind::*; match msg { BoundsCheck { len, index } => { @@ -650,9 +638,11 @@ macro_rules! make_mir_visitor { } } - fn super_rvalue(&mut self, - rvalue: & $($mutability)? Rvalue<'tcx>, - location: Location) { + fn super_rvalue( + &mut self, + rvalue: & $($mutability)? Rvalue<'tcx>, + location: Location + ) { match rvalue { Rvalue::Use(operand) => { self.visit_operand(operand, location); @@ -679,6 +669,7 @@ macro_rules! make_mir_visitor { }; self.visit_place(path, ctx, location); } + Rvalue::CopyForDeref(place) => { self.visit_place( place, @@ -742,8 +733,7 @@ macro_rules! make_mir_visitor { AggregateKind::Array(ty) => { self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); } - AggregateKind::Tuple => { - } + AggregateKind::Tuple => {} AggregateKind::Adt( _adt_def, _variant_index, @@ -753,22 +743,13 @@ macro_rules! make_mir_visitor { ) => { self.visit_args(args, location); } - AggregateKind::Closure( - _, - closure_args - ) => { + AggregateKind::Closure(_, closure_args) => { self.visit_args(closure_args, location); } - AggregateKind::Coroutine( - _, - coroutine_args, - ) => { + AggregateKind::Coroutine(_, coroutine_args) => { self.visit_args(coroutine_args, location); } - AggregateKind::CoroutineClosure( - _, - coroutine_closure_args, - ) => { + AggregateKind::CoroutineClosure(_, coroutine_closure_args) => { self.visit_args(coroutine_closure_args, location); } AggregateKind::RawPtr(ty, _) => { @@ -793,9 +774,11 @@ macro_rules! make_mir_visitor { } } - fn super_operand(&mut self, - operand: & $($mutability)? Operand<'tcx>, - location: Location) { + fn super_operand( + &mut self, + operand: & $($mutability)? Operand<'tcx>, + location: Location + ) { match operand { Operand::Copy(place) => { self.visit_place( @@ -817,28 +800,36 @@ macro_rules! make_mir_visitor { } } - fn super_ascribe_user_ty(&mut self, - place: & $($mutability)? Place<'tcx>, - variance: $(& $mutability)? ty::Variance, - user_ty: & $($mutability)? UserTypeProjection, - location: Location) { + fn super_ascribe_user_ty( + &mut self, + place: & $($mutability)? Place<'tcx>, + variance: $(& $mutability)? ty::Variance, + user_ty: & $($mutability)? UserTypeProjection, + location: Location) + { self.visit_place( place, - PlaceContext::NonUse(NonUseContext::AscribeUserTy($(* &$mutability *)? variance)), + PlaceContext::NonUse( + NonUseContext::AscribeUserTy($(* &$mutability *)? variance) + ), location ); self.visit_user_type_projection(user_ty); } - fn super_coverage(&mut self, - _kind: & $($mutability)? coverage::CoverageKind, - _location: Location) { + fn super_coverage( + &mut self, + _kind: & $($mutability)? coverage::CoverageKind, + _location: Location + ) { } - fn super_retag(&mut self, - _kind: $(& $mutability)? RetagKind, - place: & $($mutability)? Place<'tcx>, - location: Location) { + fn super_retag( + &mut self, + _kind: $(& $mutability)? RetagKind, + place: & $($mutability)? Place<'tcx>, + location: Location + ) { self.visit_place( place, PlaceContext::MutatingUse(MutatingUseContext::Retag), @@ -846,9 +837,11 @@ macro_rules! make_mir_visitor { ); } - fn super_local_decl(&mut self, - local: Local, - local_decl: & $($mutability)? LocalDecl<'tcx>) { + fn super_local_decl( + &mut self, + local: Local, + local_decl: & $($mutability)? LocalDecl<'tcx> + ) { let LocalDecl { mutability: _, ty, @@ -892,7 +885,10 @@ macro_rules! make_mir_visitor { self.visit_source_info(source_info); let location = Location::START; - if let Some(box VarDebugInfoFragment { ref $($mutability)? ty, ref $($mutability)? projection }) = composite { + if let Some(box VarDebugInfoFragment { + ref $($mutability)? ty, + ref $($mutability)? projection + }) = composite { self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); for elem in projection { let ProjectionElem::Field(_, ty) = elem else { bug!() }; @@ -910,10 +906,7 @@ macro_rules! make_mir_visitor { } } - fn super_source_scope( - &mut self, - _scope: $(& $mutability)? SourceScope - ) {} + fn super_source_scope(&mut self, _scope: $(& $mutability)? SourceScope) {} fn super_const_operand( &mut self, @@ -929,8 +922,12 @@ macro_rules! make_mir_visitor { self.visit_span($(& $mutability)? *span); match const_ { Const::Ty(_, ct) => self.visit_ty_const($(&$mutability)? *ct, location), - Const::Val(_, ty) => self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)), - Const::Unevaluated(_, ty) => self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)), + Const::Val(_, ty) => { + self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); + } + Const::Unevaluated(_, ty) => { + self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); + } } } @@ -939,27 +936,18 @@ macro_rules! make_mir_visitor { _ct: $(& $mutability)? ty::Const<'tcx>, _location: Location, ) { - } - fn super_span(&mut self, _span: $(& $mutability)? Span) { - } + fn super_span(&mut self, _span: $(& $mutability)? Span) {} fn super_source_info(&mut self, source_info: & $($mutability)? SourceInfo) { - let SourceInfo { - span, - scope, - } = source_info; + let SourceInfo { span, scope } = source_info; self.visit_span($(& $mutability)? *span); self.visit_source_scope($(& $mutability)? *scope); } - fn super_user_type_projection( - &mut self, - _ty: & $($mutability)? UserTypeProjection, - ) { - } + fn super_user_type_projection(&mut self, _ty: & $($mutability)? UserTypeProjection) {} fn super_user_type_annotation( &mut self, @@ -970,14 +958,11 @@ macro_rules! make_mir_visitor { self.visit_ty($(& $mutability)? ty.inferred_ty, TyContext::UserTy(ty.span)); } - fn super_ty(&mut self, _ty: $(& $mutability)? Ty<'tcx>) { - } + fn super_ty(&mut self, _ty: $(& $mutability)? Ty<'tcx>) {} - fn super_region(&mut self, _region: $(& $mutability)? ty::Region<'tcx>) { - } + fn super_region(&mut self, _region: $(& $mutability)? ty::Region<'tcx>) {} - fn super_args(&mut self, _args: & $($mutability)? GenericArgsRef<'tcx>) { - } + fn super_args(&mut self, _args: & $($mutability)? GenericArgsRef<'tcx>) {} // Convenience methods @@ -986,7 +971,8 @@ macro_rules! make_mir_visitor { body: &$($mutability)? Body<'tcx>, location: Location ) { - let basic_block = & $($mutability)? basic_blocks!(body, $($mutability, true)?)[location.block]; + let basic_block = + & $($mutability)? basic_blocks!(body, $($mutability, true)?)[location.block]; if basic_block.statements.len() == location.statement_index { if let Some(ref $($mutability)? terminator) = basic_block.terminator { self.visit_terminator(terminator, location) From ef6df3b7135a0f70e83e840b6d6256709504b022 Mon Sep 17 00:00:00 2001 From: dianne Date: Wed, 19 Feb 2025 00:04:26 -0800 Subject: [PATCH 120/255] add a failing test --- .../migration_lint.fixed | 6 +++++ .../migration_lint.rs | 6 +++++ .../migration_lint.stderr | 23 ++++++++++++++++++- 3 files changed, 34 insertions(+), 1 deletion(-) diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.fixed b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.fixed index e35896f32ad7..bb4ecc09063b 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.fixed +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.fixed @@ -244,4 +244,10 @@ fn main() { let &[migration_lint_macros::bind_ref!(a)] = &[0]; //~^ ERROR: binding modifiers may only be written when the default binding mode is `move` assert_type_eq(a, &0u32); + + // Test that we use the correct span when labeling a `&` whose subpattern is from an expansion. + let &[&migration_lint_macros::bind_ref!(a)] = &[&0]; + //~^ ERROR: reference patterns may only be written when the default binding mode is `move` in Rust 2024 + //~| WARN: this changes meaning in Rust 2024 + assert_type_eq(a, &0u32); } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.rs b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.rs index 10a23e6f2fa1..2837c8d81dbd 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.rs +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.rs @@ -244,4 +244,10 @@ fn main() { let [migration_lint_macros::bind_ref!(a)] = &[0]; //~^ ERROR: binding modifiers may only be written when the default binding mode is `move` assert_type_eq(a, &0u32); + + // Test that we use the correct span when labeling a `&` whose subpattern is from an expansion. + let [&migration_lint_macros::bind_ref!(a)] = &[&0]; + //~^ ERROR: reference patterns may only be written when the default binding mode is `move` in Rust 2024 + //~| WARN: this changes meaning in Rust 2024 + assert_type_eq(a, &0u32); } diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr index 3dd91c86a3b8..eb76615aac12 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr @@ -580,5 +580,26 @@ help: make the implied reference pattern explicit LL | let &[migration_lint_macros::bind_ref!(a)] = &[0]; | + -error: aborting due to 30 previous errors +error: reference patterns may only be written when the default binding mode is `move` in Rust 2024 + --> $DIR/auxiliary/migration_lint_macros.rs:15:22 + | +LL | ($foo:ident) => { + | ______________________^ +LL | | ref $foo + | |________________^ reference pattern not allowed under `ref` default binding mode + | + = warning: this changes meaning in Rust 2024 + = note: for more information, see +note: matching on a reference type with a non-reference pattern changes the default binding mode + --> $DIR/migration_lint.rs:249:9 + | +LL | let [&migration_lint_macros::bind_ref!(a)] = &[&0]; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_` +help: make the implied reference pattern explicit + --> $DIR/migration_lint.rs:249:9 + | +LL | let &[&migration_lint_macros::bind_ref!(a)] = &[&0]; + | + + +error: aborting due to 31 previous errors From 51a2ee3252b33d31574ad0d03766e1b7a4034812 Mon Sep 17 00:00:00 2001 From: dianne Date: Wed, 19 Feb 2025 00:50:31 -0800 Subject: [PATCH 121/255] don't get trapped inside of expansions when trimming labels --- compiler/rustc_hir_typeck/src/pat.rs | 26 +++++++++---------- .../migration_lint.stderr | 9 +++---- 2 files changed, 16 insertions(+), 19 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index ae00bb4e218a..242536e00182 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -835,20 +835,20 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - ident.span, + 't', def_br_mutbl, ); BindingMode(ByRef::No, Mutability::Mut) } } BindingMode(ByRef::No, mutbl) => BindingMode(def_br, mutbl), - BindingMode(ByRef::Yes(_), _) => { + BindingMode(ByRef::Yes(user_br_mutbl), _) => { if let ByRef::Yes(def_br_mutbl) = def_br { // `ref`/`ref mut` overrides the binding mode on edition <= 2021 self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - ident.span, + if user_br_mutbl.is_mut() { 't' } else { 'f' }, def_br_mutbl, ); } @@ -2387,7 +2387,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - inner.span, + if pat_mutbl.is_mut() { 't' } else { '&' }, inh_mut, ) } @@ -2779,18 +2779,19 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { &self, pat_id: HirId, subpat: &'tcx Pat<'tcx>, - cutoff_span: Span, + final_char: char, def_br_mutbl: Mutability, ) { // Try to trim the span we're labeling to just the `&` or binding mode that's an issue. // If the subpattern's span is is from an expansion, the emitted label will not be trimmed. - let source_map = self.tcx.sess.source_map(); - let cutoff_span = source_map - .span_extend_prev_while(cutoff_span, |c| c.is_whitespace() || c == '(') - .unwrap_or(cutoff_span); - // Ensure we use the syntax context and thus edition of `subpat.span`; this will be a hard - // error if the subpattern is of edition >= 2024. - let trimmed_span = subpat.span.until(cutoff_span).with_ctxt(subpat.span.ctxt()); + // Importantly, the edition of the trimmed span should be the same as `subpat.span`; this + // will be a hard error if the subpattern is of edition >= 2024. + let from_expansion = subpat.span.from_expansion(); + let trimmed_span = if from_expansion { + subpat.span + } else { + self.tcx.sess.source_map().span_through_char(subpat.span, final_char) + }; let mut typeck_results = self.typeck_results.borrow_mut(); let mut table = typeck_results.rust_2024_migration_desugared_pats_mut(); @@ -2824,7 +2825,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { }; // Only provide a detailed label if the problematic subpattern isn't from an expansion. // In the case that it's from a macro, we'll add a more detailed note in the emitter. - let from_expansion = subpat.span.from_expansion(); let primary_label = if from_expansion { // We can't suggest eliding modifiers within expansions. info.suggest_eliding_modes = false; diff --git a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr index eb76615aac12..6efda4f757ff 100644 --- a/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr +++ b/tests/ui/pattern/rfc-3627-match-ergonomics-2024/migration_lint.stderr @@ -581,12 +581,10 @@ LL | let &[migration_lint_macros::bind_ref!(a)] = &[0]; | + error: reference patterns may only be written when the default binding mode is `move` in Rust 2024 - --> $DIR/auxiliary/migration_lint_macros.rs:15:22 + --> $DIR/migration_lint.rs:249:10 | -LL | ($foo:ident) => { - | ______________________^ -LL | | ref $foo - | |________________^ reference pattern not allowed under `ref` default binding mode +LL | let [&migration_lint_macros::bind_ref!(a)] = &[&0]; + | ^ reference pattern not allowed under `ref` default binding mode | = warning: this changes meaning in Rust 2024 = note: for more information, see @@ -596,7 +594,6 @@ note: matching on a reference type with a non-reference pattern changes the defa LL | let [&migration_lint_macros::bind_ref!(a)] = &[&0]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this matches on type `&_` help: make the implied reference pattern explicit - --> $DIR/migration_lint.rs:249:9 | LL | let &[&migration_lint_macros::bind_ref!(a)] = &[&0]; | + From 35febd7a6d57179f41cb5b4a37f9545915e4d7a5 Mon Sep 17 00:00:00 2001 From: Li Keqing Date: Wed, 19 Feb 2025 18:05:37 +0800 Subject: [PATCH 122/255] Fix `*-win7-windows-msvc` target since 26eeac1a1e9fe46ffd80dd0d3dafdd2c2a644306 --- library/std/src/sys/pal/windows/c.rs | 4 ++-- library/std/src/sys/random/windows.rs | 2 +- library/std/src/sys/sync/mutex/windows7.rs | 2 +- library/std/src/sys/sync/thread_parking/windows7.rs | 8 ++++---- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/library/std/src/sys/pal/windows/c.rs b/library/std/src/sys/pal/windows/c.rs index 8dc61edb603f..4fbdc839939c 100644 --- a/library/std/src/sys/pal/windows/c.rs +++ b/library/std/src/sys/pal/windows/c.rs @@ -204,7 +204,7 @@ compat_fn_with_fallback! { pub fn NtReleaseKeyedEvent( EventHandle: HANDLE, Key: *const c_void, - Alertable: BOOLEAN, + Alertable: bool, Timeout: *mut i64 ) -> NTSTATUS { panic!("keyed events not available") @@ -213,7 +213,7 @@ compat_fn_with_fallback! { pub fn NtWaitForKeyedEvent( EventHandle: HANDLE, Key: *const c_void, - Alertable: BOOLEAN, + Alertable: bool, Timeout: *mut i64 ) -> NTSTATUS { panic!("keyed events not available") diff --git a/library/std/src/sys/random/windows.rs b/library/std/src/sys/random/windows.rs index 7566000f9e6f..f5da637f56ca 100644 --- a/library/std/src/sys/random/windows.rs +++ b/library/std/src/sys/random/windows.rs @@ -14,7 +14,7 @@ pub fn fill_bytes(mut bytes: &mut [u8]) { while !bytes.is_empty() { let len = bytes.len().try_into().unwrap_or(u32::MAX); let ret = unsafe { c::RtlGenRandom(bytes.as_mut_ptr().cast(), len) }; - assert_ne!(ret, 0, "failed to generate random data"); + assert!(ret, "failed to generate random data"); bytes = &mut bytes[len as usize..]; } } diff --git a/library/std/src/sys/sync/mutex/windows7.rs b/library/std/src/sys/sync/mutex/windows7.rs index 689dba10f01e..0b57de78ba6d 100644 --- a/library/std/src/sys/sync/mutex/windows7.rs +++ b/library/std/src/sys/sync/mutex/windows7.rs @@ -44,7 +44,7 @@ impl Mutex { #[inline] pub fn try_lock(&self) -> bool { - unsafe { c::TryAcquireSRWLockExclusive(raw(self)) != 0 } + unsafe { c::TryAcquireSRWLockExclusive(raw(self)) } } #[inline] diff --git a/library/std/src/sys/sync/thread_parking/windows7.rs b/library/std/src/sys/sync/thread_parking/windows7.rs index f7585e882f05..a1a0f8427cd8 100644 --- a/library/std/src/sys/sync/thread_parking/windows7.rs +++ b/library/std/src/sys/sync/thread_parking/windows7.rs @@ -195,7 +195,7 @@ mod keyed_events { pub unsafe fn park(parker: Pin<&Parker>) { // Wait for unpark() to produce this event. - c::NtWaitForKeyedEvent(keyed_event_handle(), parker.ptr(), 0, ptr::null_mut()); + c::NtWaitForKeyedEvent(keyed_event_handle(), parker.ptr(), false, ptr::null_mut()); // Set the state back to EMPTY (from either PARKED or NOTIFIED). // Note that we don't just write EMPTY, but use swap() to also // include an acquire-ordered read to synchronize with unpark()'s @@ -218,7 +218,7 @@ mod keyed_events { // Wait for unpark() to produce this event. let unparked = - c::NtWaitForKeyedEvent(handle, parker.ptr(), 0, &mut timeout) == c::STATUS_SUCCESS; + c::NtWaitForKeyedEvent(handle, parker.ptr(), false, &mut timeout) == c::STATUS_SUCCESS; // Set the state back to EMPTY (from either PARKED or NOTIFIED). let prev_state = parker.state.swap(EMPTY, Acquire); @@ -228,7 +228,7 @@ mod keyed_events { // was set to NOTIFIED, which means we *just* missed an // unpark(), which is now blocked on us to wait for it. // Wait for it to consume the event and unblock that thread. - c::NtWaitForKeyedEvent(handle, parker.ptr(), 0, ptr::null_mut()); + c::NtWaitForKeyedEvent(handle, parker.ptr(), false, ptr::null_mut()); } } pub unsafe fn unpark(parker: Pin<&Parker>) { @@ -239,7 +239,7 @@ mod keyed_events { // To prevent this thread from blocking indefinitely in that case, // park_impl() will, after seeing the state set to NOTIFIED after // waking up, call NtWaitForKeyedEvent again to unblock us. - c::NtReleaseKeyedEvent(keyed_event_handle(), parker.ptr(), 0, ptr::null_mut()); + c::NtReleaseKeyedEvent(keyed_event_handle(), parker.ptr(), false, ptr::null_mut()); } fn keyed_event_handle() -> c::HANDLE { From 5e9d8a7d55fbf1771d1b83ff2f15bdc75c9216d8 Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Wed, 19 Feb 2025 10:55:36 +0100 Subject: [PATCH 123/255] Switch to the LLVMBuildGEPWithNoWrapFlags API This API allows us to set the nuw flag as well. --- compiler/rustc_codegen_llvm/src/builder.rs | 8 ++++--- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 22 +++++++++++-------- .../rustc_llvm/llvm-wrapper/RustWrapper.cpp | 18 +++++++++++++++ 3 files changed, 36 insertions(+), 12 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index e10a4d63407c..5e130854b78b 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -32,7 +32,7 @@ use crate::abi::FnAbiLlvmExt; use crate::attributes; use crate::common::Funclet; use crate::context::{CodegenCx, SimpleCx}; -use crate::llvm::{self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, Metadata, True}; +use crate::llvm::{self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True}; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; use crate::value::Value; @@ -908,13 +908,14 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { fn gep(&mut self, ty: &'ll Type, ptr: &'ll Value, indices: &[&'ll Value]) -> &'ll Value { unsafe { - llvm::LLVMBuildGEP2( + llvm::LLVMBuildGEPWithNoWrapFlags( self.llbuilder, ty, ptr, indices.as_ptr(), indices.len() as c_uint, UNNAMED, + GEPNoWrapFlags::default(), ) } } @@ -926,13 +927,14 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { indices: &[&'ll Value], ) -> &'ll Value { unsafe { - llvm::LLVMBuildInBoundsGEP2( + llvm::LLVMBuildGEPWithNoWrapFlags( self.llbuilder, ty, ptr, indices.as_ptr(), indices.len() as c_uint, UNNAMED, + GEPNoWrapFlags::InBounds, ) } } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 3b0187b9d37b..da91e6edbcfb 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -954,6 +954,17 @@ bitflags! { } } +// These values **must** match with LLVMGEPNoWrapFlags +bitflags! { + #[repr(transparent)] + #[derive(Default)] + pub struct GEPNoWrapFlags : c_uint { + const InBounds = 1 << 0; + const NUSW = 1 << 1; + const NUW = 1 << 2; + } +} + unsafe extern "C" { pub type ModuleBuffer; } @@ -1454,21 +1465,14 @@ unsafe extern "C" { pub(crate) fn LLVMBuildStore<'a>(B: &Builder<'a>, Val: &'a Value, Ptr: &'a Value) -> &'a Value; - pub(crate) fn LLVMBuildGEP2<'a>( - B: &Builder<'a>, - Ty: &'a Type, - Pointer: &'a Value, - Indices: *const &'a Value, - NumIndices: c_uint, - Name: *const c_char, - ) -> &'a Value; - pub(crate) fn LLVMBuildInBoundsGEP2<'a>( + pub(crate) fn LLVMBuildGEPWithNoWrapFlags<'a>( B: &Builder<'a>, Ty: &'a Type, Pointer: &'a Value, Indices: *const &'a Value, NumIndices: c_uint, Name: *const c_char, + Flags: GEPNoWrapFlags, ) -> &'a Value; // Casts diff --git a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp index b8cef6a7e250..aea2a8dd0978 100644 --- a/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/RustWrapper.cpp @@ -1767,6 +1767,24 @@ extern "C" LLVMValueRef LLVMRustBuildMaxNum(LLVMBuilderRef B, LLVMValueRef LHS, return wrap(unwrap(B)->CreateMaxNum(unwrap(LHS), unwrap(RHS))); } +#if LLVM_VERSION_LT(19, 0) +enum { + LLVMGEPFlagInBounds = (1 << 0), + LLVMGEPFlagNUSW = (1 << 1), + LLVMGEPFlagNUW = (1 << 2), +}; +extern "C" LLVMValueRef +LLVMBuildGEPWithNoWrapFlags(LLVMBuilderRef B, LLVMTypeRef Ty, + LLVMValueRef Pointer, LLVMValueRef *Indices, + unsigned NumIndices, const char *Name, + unsigned NoWrapFlags) { + if (NoWrapFlags & LLVMGEPFlagInBounds) + return LLVMBuildInBoundsGEP2(B, Ty, Pointer, Indices, NumIndices, Name); + else + return LLVMBuildGEP2(B, Ty, Pointer, Indices, NumIndices, Name); +} +#endif + // Transfers ownership of DiagnosticHandler unique_ptr to the caller. extern "C" DiagnosticHandler * LLVMRustContextGetDiagnosticHandler(LLVMContextRef C) { From 31cc4c074d9df22110daa59d8f5486ae02bac3bd Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Wed, 19 Feb 2025 11:06:11 +0100 Subject: [PATCH 124/255] Emit getelementptr inbounds nuw for pointer::add() --- compiler/rustc_codegen_llvm/src/builder.rs | 23 ++++++++++++++- compiler/rustc_codegen_ssa/src/mir/rvalue.rs | 29 +++++++++++++------ .../rustc_codegen_ssa/src/traits/builder.rs | 8 +++++ tests/codegen/gep-index.rs | 4 +-- tests/codegen/intrinsics/offset.rs | 2 +- tests/codegen/intrinsics/ptr_metadata.rs | 2 +- tests/codegen/ptr-arithmetic.rs | 2 +- 7 files changed, 55 insertions(+), 15 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 5e130854b78b..7e428f010ef4 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -32,7 +32,9 @@ use crate::abi::FnAbiLlvmExt; use crate::attributes; use crate::common::Funclet; use crate::context::{CodegenCx, SimpleCx}; -use crate::llvm::{self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True}; +use crate::llvm::{ + self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, GEPNoWrapFlags, Metadata, True, +}; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; use crate::value::Value; @@ -939,6 +941,25 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } } + fn inbounds_nuw_gep( + &mut self, + ty: &'ll Type, + ptr: &'ll Value, + indices: &[&'ll Value], + ) -> &'ll Value { + unsafe { + llvm::LLVMBuildGEPWithNoWrapFlags( + self.llbuilder, + ty, + ptr, + indices.as_ptr(), + indices.len() as c_uint, + UNNAMED, + GEPNoWrapFlags::InBounds | GEPNoWrapFlags::NUW, + ) + } + } + /* Casts */ fn trunc(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { unsafe { llvm::LLVMBuildTrunc(self.llbuilder, val, dest_ty, UNNAMED) } diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index 4c5b183cfe92..6ba38b7186d2 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -664,9 +664,15 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { lhs.layout.ty, ), - (OperandValue::Immediate(lhs_val), OperandValue::Immediate(rhs_val)) => { - self.codegen_scalar_binop(bx, op, lhs_val, rhs_val, lhs.layout.ty) - } + (OperandValue::Immediate(lhs_val), OperandValue::Immediate(rhs_val)) => self + .codegen_scalar_binop( + bx, + op, + lhs_val, + rhs_val, + lhs.layout.ty, + rhs.layout.ty, + ), _ => bug!(), }; @@ -887,10 +893,11 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { op: mir::BinOp, lhs: Bx::Value, rhs: Bx::Value, - input_ty: Ty<'tcx>, + lhs_ty: Ty<'tcx>, + rhs_ty: Ty<'tcx>, ) -> Bx::Value { - let is_float = input_ty.is_floating_point(); - let is_signed = input_ty.is_signed(); + let is_float = lhs_ty.is_floating_point(); + let is_signed = lhs_ty.is_signed(); match op { mir::BinOp::Add => { if is_float { @@ -956,9 +963,9 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { mir::BinOp::BitAnd => bx.and(lhs, rhs), mir::BinOp::BitXor => bx.xor(lhs, rhs), mir::BinOp::Offset => { - let pointee_type = input_ty + let pointee_type = lhs_ty .builtin_deref(true) - .unwrap_or_else(|| bug!("deref of non-pointer {:?}", input_ty)); + .unwrap_or_else(|| bug!("deref of non-pointer {:?}", lhs_ty)); let pointee_layout = bx.cx().layout_of(pointee_type); if pointee_layout.is_zst() { // `Offset` works in terms of the size of pointee, @@ -966,7 +973,11 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { lhs } else { let llty = bx.cx().backend_type(pointee_layout); - bx.inbounds_gep(llty, lhs, &[rhs]) + if !rhs_ty.is_signed() { + bx.inbounds_nuw_gep(llty, lhs, &[rhs]) + } else { + bx.inbounds_gep(llty, lhs, &[rhs]) + } } } mir::BinOp::Shl | mir::BinOp::ShlUnchecked => { diff --git a/compiler/rustc_codegen_ssa/src/traits/builder.rs b/compiler/rustc_codegen_ssa/src/traits/builder.rs index 48ae000f2c69..868bd4f90393 100644 --- a/compiler/rustc_codegen_ssa/src/traits/builder.rs +++ b/compiler/rustc_codegen_ssa/src/traits/builder.rs @@ -332,6 +332,14 @@ pub trait BuilderMethods<'a, 'tcx>: ptr: Self::Value, indices: &[Self::Value], ) -> Self::Value; + fn inbounds_nuw_gep( + &mut self, + ty: Self::Type, + ptr: Self::Value, + indices: &[Self::Value], + ) -> Self::Value { + self.inbounds_gep(ty, ptr, indices) + } fn ptradd(&mut self, ptr: Self::Value, offset: Self::Value) -> Self::Value { self.gep(self.cx().type_i8(), ptr, &[offset]) } diff --git a/tests/codegen/gep-index.rs b/tests/codegen/gep-index.rs index 1f5e8855910e..6b45692bea17 100644 --- a/tests/codegen/gep-index.rs +++ b/tests/codegen/gep-index.rs @@ -18,7 +18,7 @@ fn index_on_struct(a: &[Foo], index: usize) -> &Foo { // CHECK-LABEL: @offset_on_struct( #[no_mangle] fn offset_on_struct(a: *const Foo, index: usize) -> *const Foo { - // CHECK: getelementptr inbounds %Foo, ptr %a, {{i64|i32}} %index + // CHECK: getelementptr inbounds{{( nuw)?}} %Foo, ptr %a, {{i64|i32}} %index unsafe { a.add(index) } } @@ -32,6 +32,6 @@ fn index_on_i32(a: &[i32], index: usize) -> &i32 { // CHECK-LABEL: @offset_on_i32( #[no_mangle] fn offset_on_i32(a: *const i32, index: usize) -> *const i32 { - // CHECK: getelementptr inbounds i32, ptr %a, {{i64|i32}} %index + // CHECK: getelementptr inbounds{{( nuw)?}} i32, ptr %a, {{i64|i32}} %index unsafe { a.add(index) } } diff --git a/tests/codegen/intrinsics/offset.rs b/tests/codegen/intrinsics/offset.rs index d76d3e705aba..cf0c7c7ac7d7 100644 --- a/tests/codegen/intrinsics/offset.rs +++ b/tests/codegen/intrinsics/offset.rs @@ -27,7 +27,7 @@ pub unsafe fn offset_isize(p: *const u32, d: isize) -> *const u32 { // CHECK-SAME: (ptr noundef %p, [[SIZE]] noundef %d) #[no_mangle] pub unsafe fn offset_usize(p: *const u64, d: usize) -> *const u64 { - // CHECK: %[[R:.*]] = getelementptr inbounds i64, ptr %p, [[SIZE]] %d + // CHECK: %[[R:.*]] = getelementptr inbounds{{( nuw)?}} i64, ptr %p, [[SIZE]] %d // CHECK-NEXT: ret ptr %[[R]] offset(p, d) } diff --git a/tests/codegen/intrinsics/ptr_metadata.rs b/tests/codegen/intrinsics/ptr_metadata.rs index 87a32fa3d246..044dbc204869 100644 --- a/tests/codegen/intrinsics/ptr_metadata.rs +++ b/tests/codegen/intrinsics/ptr_metadata.rs @@ -28,7 +28,7 @@ pub unsafe fn dyn_byte_offset( p: *const dyn std::fmt::Debug, n: usize, ) -> *const dyn std::fmt::Debug { - // CHECK: %[[Q:.+]] = getelementptr inbounds i8, ptr %p.0, i64 %n + // CHECK: %[[Q:.+]] = getelementptr inbounds{{( nuw)?}} i8, ptr %p.0, i64 %n // CHECK: %[[TEMP1:.+]] = insertvalue { ptr, ptr } poison, ptr %[[Q]], 0 // CHECK: %[[TEMP2:.+]] = insertvalue { ptr, ptr } %[[TEMP1]], ptr %p.1, 1 // CHECK: ret { ptr, ptr } %[[TEMP2]] diff --git a/tests/codegen/ptr-arithmetic.rs b/tests/codegen/ptr-arithmetic.rs index ecb44b30f5ca..fc4441ef4486 100644 --- a/tests/codegen/ptr-arithmetic.rs +++ b/tests/codegen/ptr-arithmetic.rs @@ -6,7 +6,7 @@ // CHECK-SAME: [[WORD:i[0-9]+]] noundef %n) #[no_mangle] pub unsafe fn i32_add(p: *const i32, n: usize) -> *const i32 { - // CHECK: %[[TEMP:.+]] = getelementptr inbounds i32, ptr %p, [[WORD]] %n + // CHECK: %[[TEMP:.+]] = getelementptr inbounds{{( nuw)?}} i32, ptr %p, [[WORD]] %n // CHECK: ret ptr %[[TEMP]] p.add(n) } From 70f11ee0c063fa85dff72306c2ec29532b8cabeb Mon Sep 17 00:00:00 2001 From: xizheyin Date: Wed, 19 Feb 2025 20:16:28 +0800 Subject: [PATCH 125/255] fix by comments Signed-off-by: xizheyin --- .../std/src/sys/pal/unix/stack_overflow.rs | 38 +++++++++---------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/library/std/src/sys/pal/unix/stack_overflow.rs b/library/std/src/sys/pal/unix/stack_overflow.rs index 0550223eb9ac..43ece63457fe 100644 --- a/library/std/src/sys/pal/unix/stack_overflow.rs +++ b/library/std/src/sys/pal/unix/stack_overflow.rs @@ -319,14 +319,12 @@ mod imp { ))] unsafe fn get_stack_start() -> Option<*mut libc::c_void> { let mut ret = None; - let mut attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { - let mut attr = mem::MaybeUninit::uninit(); - assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); - attr - } else { - mem::MaybeUninit::zeroed() - }; - + let mut attr: mem::MaybeUninit = mem::MaybeUninit::uninit(); + if !cfg!(target_os = "freebsd") { + attr = mem::MaybeUninit::zeroed(); + } + #[cfg(target_os = "freebsd")] + assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); #[cfg(target_os = "freebsd")] let e = libc::pthread_attr_get_np(libc::pthread_self(), attr.as_mut_ptr()); #[cfg(not(target_os = "freebsd"))] @@ -517,22 +515,20 @@ mod imp { // FIXME: I am probably not unsafe. unsafe fn current_guard() -> Option> { let mut ret = None; - let attr: mem::MaybeUninit = if cfg!(target_os = "freebsd") { - let mut attr = mem::MaybeUninit::uninit(); - assert_eq!(libc::pthread_attr_init((&raw mut attr) as *mut _), 0); - attr - } else { - mem::MaybeUninit::zeroed() - }; - let mut attr = unsafe { attr.assume_init() }; + let mut attr: mem::MaybeUninit = mem::MaybeUninit::uninit(); + if !cfg!(target_os = "freebsd") { + attr = mem::MaybeUninit::zeroed(); + } #[cfg(target_os = "freebsd")] - let e = libc::pthread_attr_get_np(libc::pthread_self(), &mut attr); + assert_eq!(libc::pthread_attr_init(attr.as_mut_ptr()), 0); + #[cfg(target_os = "freebsd")] + let e = libc::pthread_attr_get_np(libc::pthread_self(), attr.as_mut_ptr()); #[cfg(not(target_os = "freebsd"))] - let e = libc::pthread_getattr_np(libc::pthread_self(), &mut attr); + let e = libc::pthread_getattr_np(libc::pthread_self(), attr.as_mut_ptr()); if e == 0 { let mut guardsize = 0; - assert_eq!(libc::pthread_attr_getguardsize(&attr, &mut guardsize), 0); + assert_eq!(libc::pthread_attr_getguardsize(attr.as_ptr(), &mut guardsize), 0); if guardsize == 0 { if cfg!(all(target_os = "linux", target_env = "musl")) { // musl versions before 1.1.19 always reported guard @@ -545,7 +541,7 @@ mod imp { } let mut stackptr = crate::ptr::null_mut::(); let mut size = 0; - assert_eq!(libc::pthread_attr_getstack(&attr, &mut stackptr, &mut size), 0); + assert_eq!(libc::pthread_attr_getstack(attr.as_ptr(), &mut stackptr, &mut size), 0); let stackaddr = stackptr.addr(); ret = if cfg!(any(target_os = "freebsd", target_os = "netbsd", target_os = "hurd")) { @@ -566,7 +562,7 @@ mod imp { }; } if e == 0 || cfg!(target_os = "freebsd") { - assert_eq!(libc::pthread_attr_destroy(&mut attr), 0); + assert_eq!(libc::pthread_attr_destroy(attr.as_mut_ptr()), 0); } ret } From 9e7b1847dcd0d5c61c48e362e02c36ad6f8c51ab Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Wed, 19 Feb 2025 15:14:12 +0100 Subject: [PATCH 126/255] Also use gep inbounds nuw for index projections --- compiler/rustc_codegen_ssa/src/mir/place.rs | 2 +- tests/codegen/gep-index.rs | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/mir/place.rs b/compiler/rustc_codegen_ssa/src/mir/place.rs index eb4270ffe809..84451698c34a 100644 --- a/compiler/rustc_codegen_ssa/src/mir/place.rs +++ b/compiler/rustc_codegen_ssa/src/mir/place.rs @@ -423,7 +423,7 @@ impl<'a, 'tcx, V: CodegenObject> PlaceRef<'tcx, V> { layout.size }; - let llval = bx.inbounds_gep(bx.cx().backend_type(layout), self.val.llval, &[llindex]); + let llval = bx.inbounds_nuw_gep(bx.cx().backend_type(layout), self.val.llval, &[llindex]); let align = self.val.align.restrict_for_offset(offset); PlaceValue::new_sized(llval, align).with_type(layout) } diff --git a/tests/codegen/gep-index.rs b/tests/codegen/gep-index.rs index 6b45692bea17..bfb2511af87a 100644 --- a/tests/codegen/gep-index.rs +++ b/tests/codegen/gep-index.rs @@ -11,7 +11,7 @@ struct Foo(i32, i32); // CHECK-LABEL: @index_on_struct( #[no_mangle] fn index_on_struct(a: &[Foo], index: usize) -> &Foo { - // CHECK: getelementptr inbounds %Foo, ptr %a.0, {{i64|i32}} %index + // CHECK: getelementptr inbounds{{( nuw)?}} %Foo, ptr %a.0, {{i64|i32}} %index &a[index] } @@ -25,7 +25,7 @@ fn offset_on_struct(a: *const Foo, index: usize) -> *const Foo { // CHECK-LABEL: @index_on_i32( #[no_mangle] fn index_on_i32(a: &[i32], index: usize) -> &i32 { - // CHECK: getelementptr inbounds i32, ptr %a.0, {{i64|i32}} %index + // CHECK: getelementptr inbounds{{( nuw)?}} i32, ptr %a.0, {{i64|i32}} %index &a[index] } From b4a3b6484d4a6ca4d5b4561aa0113a8e2ab27695 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Wed, 19 Feb 2025 19:16:49 +0300 Subject: [PATCH 127/255] set `build.test-stage = 2` for `tools` profile Signed-off-by: onur-ozkan --- src/bootstrap/defaults/config.tools.toml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/bootstrap/defaults/config.tools.toml b/src/bootstrap/defaults/config.tools.toml index 64097320caba..57c2706f60a5 100644 --- a/src/bootstrap/defaults/config.tools.toml +++ b/src/bootstrap/defaults/config.tools.toml @@ -8,6 +8,8 @@ incremental = true download-rustc = "if-unchanged" [build] +# cargo and clippy tests don't pass on stage 1 +test-stage = 2 # Document with the in-tree rustdoc by default, since `download-rustc` makes it quick to compile. doc-stage = 2 # Contributors working on tools will probably expect compiler docs to be generated, so they can figure out how to use the API. From 4b9b5d78963154386d7a0b41b4215bc13ad4dbca Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Wed, 19 Feb 2025 19:18:54 +0300 Subject: [PATCH 128/255] add change-entry for tools profile update Signed-off-by: onur-ozkan --- src/bootstrap/src/utils/change_tracker.rs | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/bootstrap/src/utils/change_tracker.rs b/src/bootstrap/src/utils/change_tracker.rs index f215c3f6d0b3..8dfe0d3a35ef 100644 --- a/src/bootstrap/src/utils/change_tracker.rs +++ b/src/bootstrap/src/utils/change_tracker.rs @@ -355,4 +355,9 @@ pub const CONFIG_CHANGE_HISTORY: &[ChangeInfo] = &[ severity: ChangeSeverity::Info, summary: "It is now possible to configure `jemalloc` for each target", }, + ChangeInfo { + change_id: 137215, + severity: ChangeSeverity::Info, + summary: "Added `build.test-stage = 2` to 'tools' profile defaults", + }, ]; From 76063a683f2ef7530d07301127027488f1ecec8d Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Wed, 19 Feb 2025 19:25:17 +0300 Subject: [PATCH 129/255] print warning and help messages Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/test.rs | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index 8d53ebdca19e..40f5259133a5 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -298,6 +298,11 @@ impl Step for Cargo { /// Runs `cargo test` for `cargo` packaged with Rust. fn run(self, builder: &Builder<'_>) { + if self.stage < 2 { + eprintln!("WARNING: cargo tests on stage {} may not behave well.", self.stage); + eprintln!("HELP: consider using stage 2"); + } + let compiler = builder.compiler(self.stage, self.host); let cargo = builder.ensure(tool::Cargo { compiler, target: self.host }); @@ -743,6 +748,11 @@ impl Step for Clippy { let host = self.host; let compiler = builder.compiler(stage, host); + if stage < 2 { + eprintln!("WARNING: clippy tests on stage {stage} may not behave well."); + eprintln!("HELP: consider using stage 2"); + } + let tool_result = builder.ensure(tool::Clippy { compiler, target: self.host }); let compiler = tool_result.build_compiler; let mut cargo = tool::prepare_tool_cargo( From a090e76dab39b3771b5e99096766b5ffac588145 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Wed, 19 Feb 2025 17:26:03 +0000 Subject: [PATCH 130/255] Tweak "expected ident" parse error to avoid talking about doc comments When encountering a doc comment without an identifier after, we'd unconditionally state "this doc comment doesn't document anything", swallowing the *actual* error which is that the thing *after* the doc comment wasn't expected. Added a check that the found token is something that "conceptually" closes the previous item before emitting that error, otherwise just complain about the missing identifier. In both of the following cases, the syntax error follows a doc comment: ``` error: expected identifier, found keyword `Self` --> $DIR/doc-before-bad-variant.rs:4:5 | LL | enum TestEnum { | -------- while parsing this enum ... LL | Self, | ^^^^ expected identifier, found keyword | = help: enum variants can be `Variant`, `Variant = `, `Variant(Type, ..., TypeN)` or `Variant { fields: Types }` ``` ``` error: expected identifier, found `<` --> $DIR/doc-before-syntax-error.rs:2:1 | LL | <> | ^ expected identifier ``` Fix #71982. --- compiler/rustc_parse/src/parser/diagnostics.rs | 16 +++++++++------- tests/ui/parser/doc-before-bad-variant.rs | 6 ++++++ tests/ui/parser/doc-before-bad-variant.stderr | 13 +++++++++++++ tests/ui/parser/doc-before-syntax-error.rs | 2 ++ tests/ui/parser/doc-before-syntax-error.stderr | 8 ++++++++ 5 files changed, 38 insertions(+), 7 deletions(-) create mode 100644 tests/ui/parser/doc-before-bad-variant.rs create mode 100644 tests/ui/parser/doc-before-bad-variant.stderr create mode 100644 tests/ui/parser/doc-before-syntax-error.rs create mode 100644 tests/ui/parser/doc-before-syntax-error.stderr diff --git a/compiler/rustc_parse/src/parser/diagnostics.rs b/compiler/rustc_parse/src/parser/diagnostics.rs index 72aebb5d1214..67abc2d53940 100644 --- a/compiler/rustc_parse/src/parser/diagnostics.rs +++ b/compiler/rustc_parse/src/parser/diagnostics.rs @@ -301,13 +301,6 @@ impl<'a> Parser<'a> { &mut self, recover: bool, ) -> PResult<'a, (Ident, IdentIsRaw)> { - if let TokenKind::DocComment(..) = self.prev_token.kind { - return Err(self.dcx().create_err(DocCommentDoesNotDocumentAnything { - span: self.prev_token.span, - missing_comma: None, - })); - } - let valid_follow = &[ TokenKind::Eq, TokenKind::Colon, @@ -319,6 +312,15 @@ impl<'a> Parser<'a> { TokenKind::CloseDelim(Delimiter::Brace), TokenKind::CloseDelim(Delimiter::Parenthesis), ]; + if let TokenKind::DocComment(..) = self.prev_token.kind + && valid_follow.contains(&self.token.kind) + { + let err = self.dcx().create_err(DocCommentDoesNotDocumentAnything { + span: self.prev_token.span, + missing_comma: None, + }); + return Err(err); + } let mut recovered_ident = None; // we take this here so that the correct original token is retained in diff --git a/tests/ui/parser/doc-before-bad-variant.rs b/tests/ui/parser/doc-before-bad-variant.rs new file mode 100644 index 000000000000..bfede28c1089 --- /dev/null +++ b/tests/ui/parser/doc-before-bad-variant.rs @@ -0,0 +1,6 @@ +enum TestEnum { + Works, + /// Some documentation + Self, //~ ERROR expected identifier, found keyword `Self` + //~^ HELP enum variants can be +} diff --git a/tests/ui/parser/doc-before-bad-variant.stderr b/tests/ui/parser/doc-before-bad-variant.stderr new file mode 100644 index 000000000000..5e4d4116f259 --- /dev/null +++ b/tests/ui/parser/doc-before-bad-variant.stderr @@ -0,0 +1,13 @@ +error: expected identifier, found keyword `Self` + --> $DIR/doc-before-bad-variant.rs:4:5 + | +LL | enum TestEnum { + | -------- while parsing this enum +... +LL | Self, + | ^^^^ expected identifier, found keyword + | + = help: enum variants can be `Variant`, `Variant = `, `Variant(Type, ..., TypeN)` or `Variant { fields: Types }` + +error: aborting due to 1 previous error + diff --git a/tests/ui/parser/doc-before-syntax-error.rs b/tests/ui/parser/doc-before-syntax-error.rs new file mode 100644 index 000000000000..435f497d186e --- /dev/null +++ b/tests/ui/parser/doc-before-syntax-error.rs @@ -0,0 +1,2 @@ +/// Some documentation +<> //~ ERROR expected identifier diff --git a/tests/ui/parser/doc-before-syntax-error.stderr b/tests/ui/parser/doc-before-syntax-error.stderr new file mode 100644 index 000000000000..93e39d630007 --- /dev/null +++ b/tests/ui/parser/doc-before-syntax-error.stderr @@ -0,0 +1,8 @@ +error: expected identifier, found `<` + --> $DIR/doc-before-syntax-error.rs:2:1 + | +LL | <> + | ^ expected identifier + +error: aborting due to 1 previous error + From 452c14e7c2f749a664ada644d294d40187c0a540 Mon Sep 17 00:00:00 2001 From: dianne Date: Wed, 19 Feb 2025 09:48:06 -0800 Subject: [PATCH 131/255] re-add explicit `with_ctxt` and tweak comments --- compiler/rustc_hir_typeck/src/pat.rs | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 242536e00182..00ee3e10db12 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -2783,14 +2783,15 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { def_br_mutbl: Mutability, ) { // Try to trim the span we're labeling to just the `&` or binding mode that's an issue. - // If the subpattern's span is is from an expansion, the emitted label will not be trimmed. - // Importantly, the edition of the trimmed span should be the same as `subpat.span`; this - // will be a hard error if the subpattern is of edition >= 2024. let from_expansion = subpat.span.from_expansion(); let trimmed_span = if from_expansion { + // If the subpattern is from an expansion, highlight the whole macro call instead. subpat.span } else { - self.tcx.sess.source_map().span_through_char(subpat.span, final_char) + let trimmed = self.tcx.sess.source_map().span_through_char(subpat.span, final_char); + // The edition of the trimmed span should be the same as `subpat.span`; this will be a + // a hard error if the subpattern is of edition >= 2024. We set it manually to be sure: + trimmed.with_ctxt(subpat.span.ctxt()) }; let mut typeck_results = self.typeck_results.borrow_mut(); From 2be26f0fe80ce2bcf25653ad3e4ca7fe9f4d4b26 Mon Sep 17 00:00:00 2001 From: dianne Date: Wed, 19 Feb 2025 10:01:13 -0800 Subject: [PATCH 132/255] add clarifying comments to chars used for label-trimming --- compiler/rustc_hir_typeck/src/pat.rs | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index 00ee3e10db12..0ef1b923399b 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -835,7 +835,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - 't', + 't', // last char of `mut` def_br_mutbl, ); BindingMode(ByRef::No, Mutability::Mut) @@ -848,7 +848,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - if user_br_mutbl.is_mut() { 't' } else { 'f' }, + match user_br_mutbl { + Mutability::Not => 'f', // last char of `ref` + Mutability::Mut => 't', // last char of `ref mut` + }, def_br_mutbl, ); } @@ -2387,7 +2390,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.add_rust_2024_migration_desugared_pat( pat_info.top_info.hir_id, pat, - if pat_mutbl.is_mut() { 't' } else { '&' }, + match pat_mutbl { + Mutability::Not => '&', // last char of `&` + Mutability::Mut => 't', // last char of `&mut` + }, inh_mut, ) } From 78ddabf31d3147a19be77c3b38b49fe60915d75a Mon Sep 17 00:00:00 2001 From: Patryk Wychowaniec Date: Sun, 13 Oct 2024 14:58:44 +0200 Subject: [PATCH 133/255] Create a generic AVR target: avr-none This commit removes the `avr-unknown-gnu-atmega328` target and replaces it with a more generic `avr-none` variant that must be specialized with the `-C target-cpu` flag (e.g. `-C target-cpu=atmega328p`). --- compiler/rustc_codegen_ssa/src/back/link.rs | 1 + compiler/rustc_codegen_ssa/src/back/linker.rs | 12 +++ .../src/spec/base/{avr_gnu.rs => avr.rs} | 40 --------- compiler/rustc_target/src/spec/base/mod.rs | 2 +- compiler/rustc_target/src/spec/mod.rs | 9 ++- .../rustc_target/src/spec/targets/avr_none.rs | 32 ++++++++ .../spec/targets/avr_unknown_gnu_atmega328.rs | 5 -- src/doc/rustc/src/platform-support.md | 2 +- .../rustc/src/platform-support/avr-none.md | 81 +++++++++++++++++++ src/tools/compiletest/src/header/tests.rs | 3 + .../src/external_deps/rustc.rs | 7 ++ tests/assembly/asm/avr-modifiers.rs | 2 +- tests/assembly/asm/avr-types.rs | 2 +- tests/assembly/targets/targets-pe.rs | 6 +- tests/codegen/asm/avr-clobbers.rs | 2 +- tests/codegen/avr/avr-func-addrspace.rs | 2 +- tests/run-make/avr-rjmp-offset/rmake.rs | 4 +- .../feature-gate-abi-avr-interrupt.rs | 2 +- tests/ui/repr/16-bit-repr-c-enum.rs | 2 +- 19 files changed, 156 insertions(+), 60 deletions(-) rename compiler/rustc_target/src/spec/base/{avr_gnu.rs => avr.rs} (91%) create mode 100644 compiler/rustc_target/src/spec/targets/avr_none.rs delete mode 100644 compiler/rustc_target/src/spec/targets/avr_unknown_gnu_atmega328.rs create mode 100644 src/doc/rustc/src/platform-support/avr-none.md diff --git a/compiler/rustc_codegen_ssa/src/back/link.rs b/compiler/rustc_codegen_ssa/src/back/link.rs index 105a4cb81f0d..0399ea77c72a 100644 --- a/compiler/rustc_codegen_ssa/src/back/link.rs +++ b/compiler/rustc_codegen_ssa/src/back/link.rs @@ -1990,6 +1990,7 @@ fn add_pre_link_args(cmd: &mut dyn Linker, sess: &Session, flavor: LinkerFlavor) if let Some(args) = sess.target.pre_link_args.get(&flavor) { cmd.verbatim_args(args.iter().map(Deref::deref)); } + cmd.verbatim_args(&sess.opts.unstable_opts.pre_link_args); } diff --git a/compiler/rustc_codegen_ssa/src/back/linker.rs b/compiler/rustc_codegen_ssa/src/back/linker.rs index e3ace01c1eb5..8900405c1b8f 100644 --- a/compiler/rustc_codegen_ssa/src/back/linker.rs +++ b/compiler/rustc_codegen_ssa/src/back/linker.rs @@ -153,6 +153,7 @@ pub(crate) fn get_linker<'a>( hinted_static: None, is_ld: cc == Cc::No, is_gnu: flavor.is_gnu(), + uses_lld: flavor.uses_lld(), }) as Box, LinkerFlavor::Msvc(..) => Box::new(MsvcLinker { cmd, sess }) as Box, LinkerFlavor::EmCc => Box::new(EmLinker { cmd, sess }) as Box, @@ -361,6 +362,7 @@ struct GccLinker<'a> { // Link as ld is_ld: bool, is_gnu: bool, + uses_lld: bool, } impl<'a> GccLinker<'a> { @@ -552,6 +554,7 @@ impl<'a> Linker for GccLinker<'a> { self.link_args(&["--entry", "_initialize"]); } } + // VxWorks compiler driver introduced `--static-crt` flag specifically for rustc, // it switches linking for libc and similar system libraries to static without using // any `#[link]` attributes in the `libc` crate, see #72782 for details. @@ -567,6 +570,15 @@ impl<'a> Linker for GccLinker<'a> { { self.cc_arg("--static-crt"); } + + // avr-none doesn't have default ISA, users must specify which specific + // CPU (well, microcontroller) they are targetting using `-Ctarget-cpu`. + // + // Currently this makes sense only when using avr-gcc as a linker, since + // it brings a couple of hand-written important intrinsics from libgcc. + if self.sess.target.arch == "avr" && !self.uses_lld { + self.verbatim_arg(format!("-mmcu={}", self.target_cpu)); + } } fn link_dylib_by_name(&mut self, name: &str, verbatim: bool, as_needed: bool) { diff --git a/compiler/rustc_target/src/spec/base/avr_gnu.rs b/compiler/rustc_target/src/spec/base/avr.rs similarity index 91% rename from compiler/rustc_target/src/spec/base/avr_gnu.rs rename to compiler/rustc_target/src/spec/base/avr.rs index 3554dcfcb4a1..85b73e61e52c 100644 --- a/compiler/rustc_target/src/spec/base/avr_gnu.rs +++ b/compiler/rustc_target/src/spec/base/avr.rs @@ -1,45 +1,5 @@ use object::elf; -use crate::spec::{Cc, LinkerFlavor, Lld, RelocModel, Target, TargetOptions}; - -/// A base target for AVR devices using the GNU toolchain. -/// -/// Requires GNU avr-gcc and avr-binutils on the host system. -/// FIXME: Remove the second parameter when const string concatenation is possible. -pub(crate) fn target(target_cpu: &'static str, mmcu: &'static str) -> Target { - Target { - arch: "avr".into(), - metadata: crate::spec::TargetMetadata { - description: None, - tier: None, - host_tools: None, - std: None, - }, - data_layout: "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8".into(), - llvm_target: "avr-unknown-unknown".into(), - pointer_width: 16, - options: TargetOptions { - env: "gnu".into(), - - c_int_width: "16".into(), - cpu: target_cpu.into(), - exe_suffix: ".elf".into(), - - linker: Some("avr-gcc".into()), - eh_frame_header: false, - pre_link_args: TargetOptions::link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &[mmcu]), - late_link_args: TargetOptions::link_args( - LinkerFlavor::Gnu(Cc::Yes, Lld::No), - &["-lgcc"], - ), - max_atomic_width: Some(16), - atomic_cas: false, - relocation_model: RelocModel::Static, - ..TargetOptions::default() - }, - } -} - /// Resolve the value of the EF_AVR_ARCH field for AVR ELF files, given the /// name of the target CPU / MCU. /// diff --git a/compiler/rustc_target/src/spec/base/mod.rs b/compiler/rustc_target/src/spec/base/mod.rs index b9139c8452c5..6f88be5d37f1 100644 --- a/compiler/rustc_target/src/spec/base/mod.rs +++ b/compiler/rustc_target/src/spec/base/mod.rs @@ -1,7 +1,7 @@ pub(crate) mod aix; pub(crate) mod android; pub(crate) mod apple; -pub(crate) mod avr_gnu; +pub(crate) mod avr; pub(crate) mod bpf; pub(crate) mod cygwin; pub(crate) mod dragonfly; diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f7e467b0c115..3b943fc178f2 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -60,7 +60,7 @@ pub mod crt_objects; mod base; mod json; -pub use base::avr_gnu::ef_avr_arch; +pub use base::avr::ef_avr_arch; /// Linker is called through a C/C++ compiler. #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)] @@ -1797,7 +1797,7 @@ supported_targets! { ("riscv64gc-unknown-fuchsia", riscv64gc_unknown_fuchsia), ("x86_64-unknown-fuchsia", x86_64_unknown_fuchsia), - ("avr-unknown-gnu-atmega328", avr_unknown_gnu_atmega328), + ("avr-none", avr_none), ("x86_64-unknown-l4re-uclibc", x86_64_unknown_l4re_uclibc), @@ -3062,7 +3062,10 @@ impl Target { &self.post_link_args, ] { for (&flavor, flavor_args) in args { - check!(!flavor_args.is_empty(), "linker flavor args must not be empty"); + check!( + !flavor_args.is_empty() || self.arch == "avr", + "linker flavor args must not be empty" + ); // Check that flavors mentioned in link args are compatible with the default flavor. match self.linker_flavor { LinkerFlavor::Gnu(..) => { diff --git a/compiler/rustc_target/src/spec/targets/avr_none.rs b/compiler/rustc_target/src/spec/targets/avr_none.rs new file mode 100644 index 000000000000..91d3197d0998 --- /dev/null +++ b/compiler/rustc_target/src/spec/targets/avr_none.rs @@ -0,0 +1,32 @@ +use crate::spec::{Cc, LinkerFlavor, Lld, RelocModel, Target, TargetOptions}; + +pub(crate) fn target() -> Target { + Target { + arch: "avr".into(), + metadata: crate::spec::TargetMetadata { + description: None, + tier: None, + host_tools: None, + std: None, + }, + data_layout: "e-P1-p:16:8-i8:8-i16:8-i32:8-i64:8-f32:8-f64:8-n8-a:8".into(), + llvm_target: "avr-unknown-unknown".into(), + pointer_width: 16, + options: TargetOptions { + c_int_width: "16".into(), + exe_suffix: ".elf".into(), + linker: Some("avr-gcc".into()), + eh_frame_header: false, + pre_link_args: TargetOptions::link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &[]), + late_link_args: TargetOptions::link_args( + LinkerFlavor::Gnu(Cc::Yes, Lld::No), + &["-lgcc"], + ), + max_atomic_width: Some(16), + atomic_cas: false, + relocation_model: RelocModel::Static, + need_explicit_cpu: true, + ..TargetOptions::default() + }, + } +} diff --git a/compiler/rustc_target/src/spec/targets/avr_unknown_gnu_atmega328.rs b/compiler/rustc_target/src/spec/targets/avr_unknown_gnu_atmega328.rs deleted file mode 100644 index c3d6fb722733..000000000000 --- a/compiler/rustc_target/src/spec/targets/avr_unknown_gnu_atmega328.rs +++ /dev/null @@ -1,5 +0,0 @@ -use crate::spec::{Target, base}; - -pub(crate) fn target() -> Target { - base::avr_gnu::target("atmega328", "-mmcu=atmega328") -} diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index b5cd3864620d..c7f4ab48ab13 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -301,7 +301,7 @@ target | std | host | notes [`armv8r-none-eabihf`](platform-support/armv8r-none-eabihf.md) | * | | Bare Armv8-R, hardfloat [`armv7a-nuttx-eabi`](platform-support/nuttx.md) | ✓ | | ARMv7-A with NuttX [`armv7a-nuttx-eabihf`](platform-support/nuttx.md) | ✓ | | ARMv7-A with NuttX, hardfloat -`avr-unknown-gnu-atmega328` | * | | AVR. Requires `-Z build-std=core` +`avr-none` | * | | AVR; requires `-Zbuild-std=core` and `-Ctarget-cpu=...` `bpfeb-unknown-none` | * | | BPF (big endian) `bpfel-unknown-none` | * | | BPF (little endian) `csky-unknown-linux-gnuabiv2` | ✓ | | C-SKY abiv2 Linux (little endian) diff --git a/src/doc/rustc/src/platform-support/avr-none.md b/src/doc/rustc/src/platform-support/avr-none.md new file mode 100644 index 000000000000..9c1836222c10 --- /dev/null +++ b/src/doc/rustc/src/platform-support/avr-none.md @@ -0,0 +1,81 @@ +# `avr-none` + +Series of microcontrollers from Atmel: ATmega8, ATmega328p etc. + +**Tier: 3** + +## Target maintainers + +- [Patryk Wychowaniec](https://github.com/Patryk27) + +## Requirements + +This target is only cross-compiled; x86-64 Linux, x86-64 macOS and aarch64 macOS +hosts are confirmed to work, but in principle any machine able to run rustc and +avr-gcc should be good. + +Compiling for this target requires `avr-gcc` installed, because a couple of +intrinsics (like 32-bit multiplication) rely on [`libgcc`](https://github.com/gcc-mirror/gcc/blob/3269a722b7a03613e9c4e2862bc5088c4a17cc11/libgcc/config/avr/lib1funcs.S) +and can't be provided through `compiler-builtins` yet. This is a limitation that +[we hope to lift in the future](https://github.com/rust-lang/compiler-builtins/issues/711). + +You'll also need to setup the `.cargo/config` file - see below for details. + +## Building the target + +Rust comes with AVR support enabled, you don't have to rebuild the compiler. + +## Building Rust programs + +Install `avr-gcc`: + +```console +# Ubuntu: +$ sudo apt-get install gcc-avr + +# Mac: +$ brew tap osx-cross/avr && brew install avr-gcc + +# NixOS (takes a couple of minutes, since it's not provided through Hydra): +$ nix shell nixpkgs#pkgsCross.avr.buildPackages.gcc11 +``` + +... setup `.cargo/config` for your project: + +```toml +[build] +target = "avr-none" +rustflags = ["-C", "target-cpu=atmega328p"] + +[unstable] +build-std = ["core"] +``` + +... and then simply run: + +```console +$ cargo build --release +``` + +The final binary will be placed into +`./target/avr-none/release/your-project.elf`. + +Note that since AVRs have rather small amounts of registers, ROM and RAM, it's +recommended to always use `--release` to avoid running out of space. + +Also, please note that specifying `-C target-cpu` is required - here's a list of +the possible variants: + +https://github.com/llvm/llvm-project/blob/093d4db2f3c874d4683fb01194b00dbb20e5c713/clang/lib/Basic/Targets/AVR.cpp#L32 + +## Testing + +You can use [`simavr`](https://github.com/buserror/simavr) to emulate the +resulting firmware on your machine: + +```console +$ simavr -m atmega328p ./target/avr-none/release/your-project.elf +``` + +Alternatively, if you want to write a couple of actual `#[test]`s, you can use +[`avr-tester`](https://github.com/Patryk27/avr-tester). diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs index 55292c46bba9..c65f10a52bd5 100644 --- a/src/tools/compiletest/src/header/tests.rs +++ b/src/tools/compiletest/src/header/tests.rs @@ -465,7 +465,10 @@ fn profiler_runtime() { #[test] fn asm_support() { let asms = [ + #[cfg(bootstrap)] ("avr-unknown-gnu-atmega328", false), + #[cfg(not(bootstrap))] + ("avr-none", false), ("i686-unknown-netbsd", true), ("riscv32gc-unknown-linux-gnu", true), ("riscv64imac-unknown-none-elf", true), diff --git a/src/tools/run-make-support/src/external_deps/rustc.rs b/src/tools/run-make-support/src/external_deps/rustc.rs index fd4a20278add..710ba025830a 100644 --- a/src/tools/run-make-support/src/external_deps/rustc.rs +++ b/src/tools/run-make-support/src/external_deps/rustc.rs @@ -253,6 +253,13 @@ impl Rustc { self } + /// Specify the target CPU. + pub fn target_cpu>(&mut self, target_cpu: S) -> &mut Self { + let target_cpu = target_cpu.as_ref(); + self.cmd.arg(format!("-Ctarget-cpu={target_cpu}")); + self + } + /// Specify the crate type. pub fn crate_type(&mut self, crate_type: &str) -> &mut Self { self.cmd.arg("--crate-type"); diff --git a/tests/assembly/asm/avr-modifiers.rs b/tests/assembly/asm/avr-modifiers.rs index 585fdd7b7253..124cad9bef6a 100644 --- a/tests/assembly/asm/avr-modifiers.rs +++ b/tests/assembly/asm/avr-modifiers.rs @@ -1,6 +1,6 @@ //@ add-core-stubs //@ assembly-output: emit-asm -//@ compile-flags: --target avr-unknown-gnu-atmega328 +//@ compile-flags: --target avr-none -C target-cpu=atmega328p //@ needs-llvm-components: avr #![feature(no_core, asm_experimental_arch)] diff --git a/tests/assembly/asm/avr-types.rs b/tests/assembly/asm/avr-types.rs index 25cf3ec3b4bd..309405f4d51e 100644 --- a/tests/assembly/asm/avr-types.rs +++ b/tests/assembly/asm/avr-types.rs @@ -1,6 +1,6 @@ //@ add-core-stubs //@ assembly-output: emit-asm -//@ compile-flags: --target avr-unknown-gnu-atmega328 +//@ compile-flags: --target avr-none -C target-cpu=atmega328p //@ needs-llvm-components: avr #![feature(no_core, asm_experimental_arch)] diff --git a/tests/assembly/targets/targets-pe.rs b/tests/assembly/targets/targets-pe.rs index 1fa4dc821dd3..b74d0181c4d6 100644 --- a/tests/assembly/targets/targets-pe.rs +++ b/tests/assembly/targets/targets-pe.rs @@ -15,9 +15,9 @@ //@ revisions: arm64ec_pc_windows_msvc //@ [arm64ec_pc_windows_msvc] compile-flags: --target arm64ec-pc-windows-msvc //@ [arm64ec_pc_windows_msvc] needs-llvm-components: aarch64 -//@ revisions: avr_unknown_gnu_atmega328 -//@ [avr_unknown_gnu_atmega328] compile-flags: --target avr-unknown-gnu-atmega328 -//@ [avr_unknown_gnu_atmega328] needs-llvm-components: avr +//@ revisions: avr_none +//@ [avr_none] compile-flags: --target avr-none -C target-cpu=atmega328p +//@ [avr_none] needs-llvm-components: avr //@ revisions: bpfeb_unknown_none //@ [bpfeb_unknown_none] compile-flags: --target bpfeb-unknown-none //@ [bpfeb_unknown_none] needs-llvm-components: bpf diff --git a/tests/codegen/asm/avr-clobbers.rs b/tests/codegen/asm/avr-clobbers.rs index 56218cd7bcff..9451127bf04a 100644 --- a/tests/codegen/asm/avr-clobbers.rs +++ b/tests/codegen/asm/avr-clobbers.rs @@ -1,6 +1,6 @@ //@ add-core-stubs //@ assembly-output: emit-asm -//@ compile-flags: --target avr-unknown-gnu-atmega328 +//@ compile-flags: --target avr-none -C target-cpu=atmega328p //@ needs-llvm-components: avr #![crate_type = "rlib"] diff --git a/tests/codegen/avr/avr-func-addrspace.rs b/tests/codegen/avr/avr-func-addrspace.rs index ed8acccb1ad8..2ec7c86b5f43 100644 --- a/tests/codegen/avr/avr-func-addrspace.rs +++ b/tests/codegen/avr/avr-func-addrspace.rs @@ -1,4 +1,4 @@ -//@ compile-flags: -Copt-level=3 --target=avr-unknown-gnu-atmega328 --crate-type=rlib -C panic=abort +//@ compile-flags: -Copt-level=3 --target=avr-none -C target-cpu=atmega328p --crate-type=rlib -C panic=abort //@ needs-llvm-components: avr // This test validates that function pointers can be stored in global variables diff --git a/tests/run-make/avr-rjmp-offset/rmake.rs b/tests/run-make/avr-rjmp-offset/rmake.rs index de64b724eed2..73b6ab3977e9 100644 --- a/tests/run-make/avr-rjmp-offset/rmake.rs +++ b/tests/run-make/avr-rjmp-offset/rmake.rs @@ -22,7 +22,8 @@ fn main() { .input("avr-rjmp-offsets.rs") .opt_level("s") .panic("abort") - .target("avr-unknown-gnu-atmega328") + .target("avr-none") + .target_cpu("avr") // normally one links with `avr-gcc`, but this is not available in CI, // hence this test diverges from the default behavior to enable linking // at all, which is necessary for the test (to resolve the labels). To @@ -49,6 +50,7 @@ fn main() { // of the Rust compiler did produce a label `rjmp .-4` (misses the first // instruction in the loop). assert!(disassembly.contains("
    "), "no main function in output"); + disassembly .trim() .lines() diff --git a/tests/ui/feature-gates/feature-gate-abi-avr-interrupt.rs b/tests/ui/feature-gates/feature-gate-abi-avr-interrupt.rs index 5386628a8e06..ce3d3fc645d7 100644 --- a/tests/ui/feature-gates/feature-gate-abi-avr-interrupt.rs +++ b/tests/ui/feature-gates/feature-gate-abi-avr-interrupt.rs @@ -1,5 +1,5 @@ //@ needs-llvm-components: avr -//@ compile-flags: --target=avr-unknown-gnu-atmega328 --crate-type=rlib +//@ compile-flags: --target=avr-none -C target-cpu=atmega328p --crate-type=rlib #![no_core] #![feature(no_core, lang_items)] #[lang="sized"] diff --git a/tests/ui/repr/16-bit-repr-c-enum.rs b/tests/ui/repr/16-bit-repr-c-enum.rs index 2b6bbf126508..011076882d24 100644 --- a/tests/ui/repr/16-bit-repr-c-enum.rs +++ b/tests/ui/repr/16-bit-repr-c-enum.rs @@ -2,7 +2,7 @@ //@ revisions: avr msp430 // //@ [avr] needs-llvm-components: avr -//@ [avr] compile-flags: --target=avr-unknown-gnu-atmega328 --crate-type=rlib +//@ [avr] compile-flags: --target=avr-none -C target-cpu=atmega328p --crate-type=rlib //@ [msp430] needs-llvm-components: msp430 //@ [msp430] compile-flags: --target=msp430-none-elf --crate-type=rlib #![feature(no_core, lang_items, intrinsics, staged_api, rustc_attrs)] From b24f77507f2b1684f69b68ac122f0b368cac7302 Mon Sep 17 00:00:00 2001 From: may Date: Wed, 19 Feb 2025 16:20:45 +0100 Subject: [PATCH 134/255] stabilize `inherent_str_constructors` --- library/core/src/str/mod.rs | 25 +++----- tests/ui/lint/invalid_from_utf8.rs | 1 - tests/ui/lint/invalid_from_utf8.stderr | 80 +++++++++++++------------- 3 files changed, 47 insertions(+), 59 deletions(-) diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs index c0ee49fbb301..4754d18b06ea 100644 --- a/library/core/src/str/mod.rs +++ b/library/core/src/str/mod.rs @@ -198,8 +198,6 @@ impl str { /// Basic usage: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // some bytes, in a vector /// let sparkle_heart = vec![240, 159, 146, 150]; /// @@ -213,8 +211,6 @@ impl str { /// Incorrect bytes: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // some invalid bytes, in a vector /// let sparkle_heart = vec![0, 159, 146, 150]; /// @@ -227,8 +223,6 @@ impl str { /// A "stack allocated string": /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // some bytes, in a stack-allocated array /// let sparkle_heart = [240, 159, 146, 150]; /// @@ -237,7 +231,8 @@ impl str { /// /// assert_eq!("💖", sparkle_heart); /// ``` - #[unstable(feature = "inherent_str_constructors", issue = "131114")] + #[stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] #[rustc_diagnostic_item = "str_inherent_from_utf8"] pub const fn from_utf8(v: &[u8]) -> Result<&str, Utf8Error> { converts::from_utf8(v) @@ -250,8 +245,6 @@ impl str { /// Basic usage: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // "Hello, Rust!" as a mutable vector /// let mut hellorust = vec![72, 101, 108, 108, 111, 44, 32, 82, 117, 115, 116, 33]; /// @@ -264,8 +257,6 @@ impl str { /// Incorrect bytes: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // Some invalid bytes in a mutable vector /// let mut invalid = vec![128, 223]; /// @@ -273,7 +264,7 @@ impl str { /// ``` /// See the docs for [`Utf8Error`] for more details on the kinds of /// errors that can be returned. - #[unstable(feature = "inherent_str_constructors", issue = "131114")] + #[stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] #[rustc_const_unstable(feature = "const_str_from_utf8", issue = "91006")] #[rustc_diagnostic_item = "str_inherent_from_utf8_mut"] pub const fn from_utf8_mut(v: &mut [u8]) -> Result<&mut str, Utf8Error> { @@ -294,8 +285,6 @@ impl str { /// Basic usage: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// // some bytes, in a vector /// let sparkle_heart = vec![240, 159, 146, 150]; /// @@ -307,7 +296,8 @@ impl str { /// ``` #[inline] #[must_use] - #[unstable(feature = "inherent_str_constructors", issue = "131114")] + #[stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] #[rustc_diagnostic_item = "str_inherent_from_utf8_unchecked"] pub const unsafe fn from_utf8_unchecked(v: &[u8]) -> &str { // SAFETY: converts::from_utf8_unchecked has the same safety requirements as this function. @@ -324,8 +314,6 @@ impl str { /// Basic usage: /// /// ``` - /// #![feature(inherent_str_constructors)] - /// /// let mut heart = vec![240, 159, 146, 150]; /// let heart = unsafe { str::from_utf8_unchecked_mut(&mut heart) }; /// @@ -333,7 +321,8 @@ impl str { /// ``` #[inline] #[must_use] - #[unstable(feature = "inherent_str_constructors", issue = "131114")] + #[stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "inherent_str_constructors", since = "CURRENT_RUSTC_VERSION")] #[rustc_diagnostic_item = "str_inherent_from_utf8_unchecked_mut"] pub const unsafe fn from_utf8_unchecked_mut(v: &mut [u8]) -> &mut str { // SAFETY: converts::from_utf8_unchecked_mut has the same safety requirements as this function. diff --git a/tests/ui/lint/invalid_from_utf8.rs b/tests/ui/lint/invalid_from_utf8.rs index 8f8000fe34d4..87a906761c07 100644 --- a/tests/ui/lint/invalid_from_utf8.rs +++ b/tests/ui/lint/invalid_from_utf8.rs @@ -1,7 +1,6 @@ //@ check-pass #![feature(concat_bytes)] -#![feature(inherent_str_constructors)] #![warn(invalid_from_utf8_unchecked)] #![warn(invalid_from_utf8)] diff --git a/tests/ui/lint/invalid_from_utf8.stderr b/tests/ui/lint/invalid_from_utf8.stderr index 715ecf56f218..3cd4d227fc27 100644 --- a/tests/ui/lint/invalid_from_utf8.stderr +++ b/tests/ui/lint/invalid_from_utf8.stderr @@ -1,5 +1,5 @@ warning: calls to `std::str::from_utf8_unchecked_mut` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:22:9 + --> $DIR/invalid_from_utf8.rs:21:9 | LL | std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -7,13 +7,13 @@ LL | std::str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112 | the literal was valid UTF-8 up to the 2 bytes | note: the lint level is defined here - --> $DIR/invalid_from_utf8.rs:5:9 + --> $DIR/invalid_from_utf8.rs:4:9 | LL | #![warn(invalid_from_utf8_unchecked)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8_unchecked_mut` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:24:9 + --> $DIR/invalid_from_utf8.rs:23:9 | LL | str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -21,7 +21,7 @@ LL | str::from_utf8_unchecked_mut(&mut [99, 108, 130, 105, 112, 112, 121 | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_unchecked_mut` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:26:9 + --> $DIR/invalid_from_utf8.rs:25:9 | LL | std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -29,7 +29,7 @@ LL | std::str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_unchecked_mut` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:28:9 + --> $DIR/invalid_from_utf8.rs:27:9 | LL | str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -37,7 +37,7 @@ LL | str::from_utf8_unchecked_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:50:9 + --> $DIR/invalid_from_utf8.rs:49:9 | LL | std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -45,7 +45,7 @@ LL | std::str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:52:9 + --> $DIR/invalid_from_utf8.rs:51:9 | LL | str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -53,7 +53,7 @@ LL | str::from_utf8_unchecked(&[99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:54:9 + --> $DIR/invalid_from_utf8.rs:53:9 | LL | std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -61,7 +61,7 @@ LL | std::str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b' | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:56:9 + --> $DIR/invalid_from_utf8.rs:55:9 | LL | str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -69,7 +69,7 @@ LL | str::from_utf8_unchecked(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:58:9 + --> $DIR/invalid_from_utf8.rs:57:9 | LL | std::str::from_utf8_unchecked(b"cl\x82ippy"); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^-------------^ @@ -77,7 +77,7 @@ LL | std::str::from_utf8_unchecked(b"cl\x82ippy"); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:60:9 + --> $DIR/invalid_from_utf8.rs:59:9 | LL | str::from_utf8_unchecked(b"cl\x82ippy"); | ^^^^^^^^^^^^^^^^^^^^^^^^^-------------^ @@ -85,7 +85,7 @@ LL | str::from_utf8_unchecked(b"cl\x82ippy"); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:62:9 + --> $DIR/invalid_from_utf8.rs:61:9 | LL | std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy")); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------^ @@ -93,7 +93,7 @@ LL | std::str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy")); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_unchecked` with an invalid literal are undefined behavior - --> $DIR/invalid_from_utf8.rs:64:9 + --> $DIR/invalid_from_utf8.rs:63:9 | LL | str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy")); | ^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------^ @@ -101,7 +101,7 @@ LL | str::from_utf8_unchecked(concat_bytes!(b"cl", b"\x82ippy")); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:84:9 + --> $DIR/invalid_from_utf8.rs:83:9 | LL | std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -109,13 +109,13 @@ LL | std::str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes | note: the lint level is defined here - --> $DIR/invalid_from_utf8.rs:6:9 + --> $DIR/invalid_from_utf8.rs:5:9 | LL | #![warn(invalid_from_utf8)] | ^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:86:9 + --> $DIR/invalid_from_utf8.rs:85:9 | LL | str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -123,7 +123,7 @@ LL | str::from_utf8_mut(&mut [99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:88:9 + --> $DIR/invalid_from_utf8.rs:87:9 | LL | std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -131,7 +131,7 @@ LL | std::str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p' | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:90:9 + --> $DIR/invalid_from_utf8.rs:89:9 | LL | str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -139,7 +139,7 @@ LL | str::from_utf8_mut(&mut [b'c', b'l', b'\x82', b'i', b'p', b'p', b'y | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:112:9 + --> $DIR/invalid_from_utf8.rs:111:9 | LL | std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^^^^^^----------------------------------^ @@ -147,7 +147,7 @@ LL | std::str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:114:9 + --> $DIR/invalid_from_utf8.rs:113:9 | LL | str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]); | ^^^^^^^^^^^^^^^^----------------------------------^ @@ -155,7 +155,7 @@ LL | str::from_utf8(&[99, 108, 130, 105, 112, 112, 121]); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:116:9 + --> $DIR/invalid_from_utf8.rs:115:9 | LL | std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -163,7 +163,7 @@ LL | std::str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']) | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:118:9 + --> $DIR/invalid_from_utf8.rs:117:9 | LL | str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | ^^^^^^^^^^^^^^^^---------------------------------------------^ @@ -171,7 +171,7 @@ LL | str::from_utf8(&[b'c', b'l', b'\x82', b'i', b'p', b'p', b'y']); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:120:9 + --> $DIR/invalid_from_utf8.rs:119:9 | LL | std::str::from_utf8(b"cl\x82ippy"); | ^^^^^^^^^^^^^^^^^^^^-------------^ @@ -179,7 +179,7 @@ LL | std::str::from_utf8(b"cl\x82ippy"); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:122:9 + --> $DIR/invalid_from_utf8.rs:121:9 | LL | str::from_utf8(b"cl\x82ippy"); | ^^^^^^^^^^^^^^^-------------^ @@ -187,7 +187,7 @@ LL | str::from_utf8(b"cl\x82ippy"); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:124:9 + --> $DIR/invalid_from_utf8.rs:123:9 | LL | std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy")); | ^^^^^^^^^^^^^^^^^^^^---------------------------------^ @@ -195,7 +195,7 @@ LL | std::str::from_utf8(concat_bytes!(b"cl", b"\x82ippy")); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:126:9 + --> $DIR/invalid_from_utf8.rs:125:9 | LL | str::from_utf8(concat_bytes!(b"cl", b"\x82ippy")); | ^^^^^^^^^^^^^^^---------------------------------^ @@ -203,7 +203,7 @@ LL | str::from_utf8(concat_bytes!(b"cl", b"\x82ippy")); | the literal was valid UTF-8 up to the 2 bytes warning: calls to `std::str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:133:5 + --> $DIR/invalid_from_utf8.rs:132:5 | LL | let mut a = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -211,7 +211,7 @@ LL | std::str::from_utf8_mut(&mut a); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:135:5 + --> $DIR/invalid_from_utf8.rs:134:5 | LL | let mut a = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -220,7 +220,7 @@ LL | str::from_utf8_mut(&mut a); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:139:5 + --> $DIR/invalid_from_utf8.rs:138:5 | LL | let mut a = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -229,7 +229,7 @@ LL | std::str::from_utf8_mut(c); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8_mut` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:141:5 + --> $DIR/invalid_from_utf8.rs:140:5 | LL | let mut a = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -238,7 +238,7 @@ LL | str::from_utf8_mut(c); | ^^^^^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:144:5 + --> $DIR/invalid_from_utf8.rs:143:5 | LL | let mut c = &[99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -246,7 +246,7 @@ LL | std::str::from_utf8(c); | ^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:146:5 + --> $DIR/invalid_from_utf8.rs:145:5 | LL | let mut c = &[99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -255,7 +255,7 @@ LL | str::from_utf8(c); | ^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:149:5 + --> $DIR/invalid_from_utf8.rs:148:5 | LL | const INVALID_1: [u8; 7] = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -263,7 +263,7 @@ LL | std::str::from_utf8(&INVALID_1); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:151:5 + --> $DIR/invalid_from_utf8.rs:150:5 | LL | const INVALID_1: [u8; 7] = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -272,7 +272,7 @@ LL | str::from_utf8(&INVALID_1); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:154:5 + --> $DIR/invalid_from_utf8.rs:153:5 | LL | static INVALID_2: [u8; 7] = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -280,7 +280,7 @@ LL | std::str::from_utf8(&INVALID_2); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:156:5 + --> $DIR/invalid_from_utf8.rs:155:5 | LL | static INVALID_2: [u8; 7] = [99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -289,7 +289,7 @@ LL | str::from_utf8(&INVALID_2); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:159:5 + --> $DIR/invalid_from_utf8.rs:158:5 | LL | const INVALID_3: &'static [u8; 7] = &[99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -297,7 +297,7 @@ LL | std::str::from_utf8(INVALID_3); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:161:5 + --> $DIR/invalid_from_utf8.rs:160:5 | LL | const INVALID_3: &'static [u8; 7] = &[99, 108, 130, 105, 112, 112, 121]; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -306,7 +306,7 @@ LL | str::from_utf8(INVALID_3); | ^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `std::str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:164:5 + --> $DIR/invalid_from_utf8.rs:163:5 | LL | const INVALID_4: &'static [u8; 7] = { &[99, 108, 130, 105, 112, 112, 121] }; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes @@ -314,7 +314,7 @@ LL | std::str::from_utf8(INVALID_4); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ warning: calls to `str::from_utf8` with an invalid literal always return an error - --> $DIR/invalid_from_utf8.rs:166:5 + --> $DIR/invalid_from_utf8.rs:165:5 | LL | const INVALID_4: &'static [u8; 7] = { &[99, 108, 130, 105, 112, 112, 121] }; | ---------------------------------- the literal was valid UTF-8 up to the 2 bytes From fe7ed278b7cfc8a152dcee29ca6ba583ff0d876d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Tue, 23 Jul 2024 00:23:54 +0000 Subject: [PATCH 135/255] Specify scope in `out_of_scope_macro_calls` lint ``` warning: cannot find macro `in_root` in the crate root --> $DIR/key-value-expansion-scope.rs:1:10 | LL | #![doc = in_root!()] | ^^^^^^^ not found in the crate root | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition = note: `#[warn(out_of_scope_macro_calls)]` on by default ``` --- compiler/rustc_lint/messages.ftl | 3 ++- compiler/rustc_lint/src/early/diagnostics.rs | 4 +-- compiler/rustc_lint/src/lints.rs | 3 +++ compiler/rustc_lint_defs/src/lib.rs | 2 ++ compiler/rustc_resolve/src/macros.rs | 26 +++++++++++++++---- .../attributes/key-value-expansion-scope.rs | 12 ++++----- .../key-value-expansion-scope.stderr | 24 ++++++++--------- 7 files changed, 48 insertions(+), 26 deletions(-) diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index dbe24c9cdf24..1d8bdb948991 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -630,7 +630,8 @@ lint_opaque_hidden_inferred_bound_sugg = add this bound lint_or_patterns_back_compat = the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro .suggestion = use pat_param to preserve semantics -lint_out_of_scope_macro_calls = cannot find macro `{$path}` in this scope +lint_out_of_scope_macro_calls = cannot find macro `{$path}` in {$scope} + .label = not found in {$scope} .help = import `macro_rules` with `use` to make it callable above its definition lint_overflowing_bin_hex = literal out of range for `{$ty}` diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index aeb5a03a4f7e..d1345467d103 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -444,8 +444,8 @@ pub(super) fn decorate_lint( lints::InnerAttributeUnstable::CustomInnerAttribute } .decorate_lint(diag), - BuiltinLintDiag::OutOfScopeMacroCalls { path } => { - lints::OutOfScopeMacroCalls { path }.decorate_lint(diag) + BuiltinLintDiag::OutOfScopeMacroCalls { span, path, scope } => { + lints::OutOfScopeMacroCalls { span, path, scope }.decorate_lint(diag) } BuiltinLintDiag::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by } => { lints::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }.decorate_lint(diag) diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index 368d36bfdd0b..afd3117d6bc1 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -3108,7 +3108,10 @@ pub(crate) struct UnsafeAttrOutsideUnsafeSuggestion { #[diag(lint_out_of_scope_macro_calls)] #[help] pub(crate) struct OutOfScopeMacroCalls { + #[label] + pub span: Span, pub path: String, + pub scope: String, } #[derive(LintDiagnostic)] diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index 7ffe4e4e4901..efa6a934b006 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -819,7 +819,9 @@ pub enum BuiltinLintDiag { is_macro: bool, }, OutOfScopeMacroCalls { + span: Span, path: String, + scope: String, }, UnexpectedBuiltinCfg { cfg: String, diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index cca01a01e987..07d1d377b419 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -857,8 +857,10 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { ), path_res @ (PathResult::NonModule(..) | PathResult::Failed { .. }) => { let mut suggestion = None; - let (span, label, module) = - if let PathResult::Failed { span, label, module, .. } = path_res { + let (span, label, module, segment) = + if let PathResult::Failed { span, label, module, segment_name, .. } = + path_res + { // try to suggest if it's not a macro, maybe a function if let PathResult::NonModule(partial_res) = self.maybe_resolve_path(&path, Some(ValueNS), &parent_scope, None) @@ -876,7 +878,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { Applicability::MaybeIncorrect, )); } - (span, label, module) + (span, label, module, segment_name) } else { ( path_span, @@ -886,12 +888,13 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { kind.descr() ), None, + path.last().map(|segment| segment.ident.name).unwrap(), ) }; self.report_error( span, ResolutionError::FailedToResolve { - segment: path.last().map(|segment| segment.ident.name), + segment: Some(segment), label, suggestion, module, @@ -1067,11 +1070,24 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { None, ); if fallback_binding.ok().and_then(|b| b.res().opt_def_id()) != Some(def_id) { + let scope = match parent_scope.module.kind { + ModuleKind::Def(_, _, name) if name == kw::Empty => { + "the crate root".to_string() + } + ModuleKind::Def(kind, def_id, name) => { + format!("{} `{name}`", kind.descr(def_id)) + } + ModuleKind::Block => "this scope".to_string(), + }; self.tcx.sess.psess.buffer_lint( OUT_OF_SCOPE_MACRO_CALLS, path.span, node_id, - BuiltinLintDiag::OutOfScopeMacroCalls { path: pprust::path_to_string(path) }, + BuiltinLintDiag::OutOfScopeMacroCalls { + span: path.span, + path: pprust::path_to_string(path), + scope, + }, ); } } diff --git a/tests/ui/attributes/key-value-expansion-scope.rs b/tests/ui/attributes/key-value-expansion-scope.rs index b6eab1571d49..49a59502377f 100644 --- a/tests/ui/attributes/key-value-expansion-scope.rs +++ b/tests/ui/attributes/key-value-expansion-scope.rs @@ -1,7 +1,7 @@ -#![doc = in_root!()] //~ WARN cannot find macro `in_root` in this scope +#![doc = in_root!()] //~ WARN cannot find macro `in_root` //~| WARN this was previously accepted by the compiler #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope -#![doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` in this scope +#![doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` //~| WARN this was previously accepted by the compiler #![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope @@ -18,10 +18,10 @@ fn before() { macro_rules! in_root { () => { "" } } -#[doc = in_mod!()] //~ WARN cannot find macro `in_mod` in this scope +#[doc = in_mod!()] //~ WARN cannot find macro `in_mod` //~| WARN this was previously accepted by the compiler mod macros_stay { - #![doc = in_mod!()] //~ WARN cannot find macro `in_mod` in this scope + #![doc = in_mod!()] //~ WARN cannot find macro `in_mod` //~| WARN this was previously accepted by the compiler macro_rules! in_mod { () => { "" } } @@ -33,10 +33,10 @@ mod macros_stay { } #[macro_use] -#[doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` in this scope +#[doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` //~| WARN this was previously accepted by the compiler mod macros_escape { - #![doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` in this scope + #![doc = in_mod_escape!()] //~ WARN cannot find macro `in_mod_escape` //~| WARN this was previously accepted by the compiler macro_rules! in_mod_escape { () => { "" } } diff --git a/tests/ui/attributes/key-value-expansion-scope.stderr b/tests/ui/attributes/key-value-expansion-scope.stderr index d22fef7dd251..172b2c54cc6b 100644 --- a/tests/ui/attributes/key-value-expansion-scope.stderr +++ b/tests/ui/attributes/key-value-expansion-scope.stderr @@ -126,62 +126,62 @@ LL | #![doc = in_block!()] | = help: have you added the `#[macro_use]` on the module/import? -warning: cannot find macro `in_root` in this scope +warning: cannot find macro `in_root` in the crate root --> $DIR/key-value-expansion-scope.rs:1:10 | LL | #![doc = in_root!()] - | ^^^^^^^ + | ^^^^^^^ not found in the crate root | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition = note: `#[warn(out_of_scope_macro_calls)]` on by default -warning: cannot find macro `in_mod_escape` in this scope +warning: cannot find macro `in_mod_escape` in the crate root --> $DIR/key-value-expansion-scope.rs:4:10 | LL | #![doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^ not found in the crate root | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod` in this scope +warning: cannot find macro `in_mod` in module `macros_stay` --> $DIR/key-value-expansion-scope.rs:21:9 | LL | #[doc = in_mod!()] - | ^^^^^^ + | ^^^^^^ not found in module `macros_stay` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod` in this scope +warning: cannot find macro `in_mod` in module `macros_stay` --> $DIR/key-value-expansion-scope.rs:24:14 | LL | #![doc = in_mod!()] - | ^^^^^^ + | ^^^^^^ not found in module `macros_stay` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod_escape` in this scope +warning: cannot find macro `in_mod_escape` in module `macros_escape` --> $DIR/key-value-expansion-scope.rs:36:9 | LL | #[doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^ not found in module `macros_escape` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod_escape` in this scope +warning: cannot find macro `in_mod_escape` in module `macros_escape` --> $DIR/key-value-expansion-scope.rs:39:14 | LL | #![doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ + | ^^^^^^^^^^^^^ not found in module `macros_escape` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 From 511bf307f03d7045f54a376d389ebdf9786e7a24 Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Fri, 14 Feb 2025 20:25:43 -0800 Subject: [PATCH 136/255] Emit `trunc nuw` for unchecked shifts and `to_immediate_scalar` MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - For shifts this shrinks the IR by no longer needing an `assume` while still providing the UB information - Having this on the `i8`→`i1` truncations will hopefully help with some places that have to load `i8`s or pass those in LLVM structs without range information --- compiler/rustc_codegen_gcc/src/builder.rs | 2 +- compiler/rustc_codegen_llvm/src/builder.rs | 28 ++++++++- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 1 + compiler/rustc_codegen_ssa/src/base.rs | 10 +--- .../rustc_codegen_ssa/src/traits/builder.rs | 11 ++++ tests/codegen/intrinsics/transmute-niched.rs | 2 +- tests/codegen/intrinsics/transmute.rs | 11 ++-- tests/codegen/transmute-scalar.rs | 2 +- tests/codegen/unchecked_shifts.rs | 58 +++++++++---------- tests/codegen/union-abi.rs | 2 +- 10 files changed, 77 insertions(+), 50 deletions(-) diff --git a/compiler/rustc_codegen_gcc/src/builder.rs b/compiler/rustc_codegen_gcc/src/builder.rs index b8e37b604801..76846692459d 100644 --- a/compiler/rustc_codegen_gcc/src/builder.rs +++ b/compiler/rustc_codegen_gcc/src/builder.rs @@ -1694,7 +1694,7 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> { fn to_immediate_scalar(&mut self, val: Self::Value, scalar: abi::Scalar) -> Self::Value { if scalar.is_bool() { - return self.trunc(val, self.cx().type_i1()); + return self.unchecked_utrunc(val, self.cx().type_i1()); } val } diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index e10a4d63407c..18bb6a609aaa 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -29,13 +29,13 @@ use smallvec::SmallVec; use tracing::{debug, instrument}; use crate::abi::FnAbiLlvmExt; -use crate::attributes; use crate::common::Funclet; use crate::context::{CodegenCx, SimpleCx}; use crate::llvm::{self, AtomicOrdering, AtomicRmwBinOp, BasicBlock, False, Metadata, True}; use crate::type_::Type; use crate::type_of::LayoutLlvmExt; use crate::value::Value; +use crate::{attributes, llvm_util}; #[must_use] pub(crate) struct GenericBuilder<'a, 'll, CX: Borrow>> { @@ -606,7 +606,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { fn to_immediate_scalar(&mut self, val: Self::Value, scalar: abi::Scalar) -> Self::Value { if scalar.is_bool() { - return self.trunc(val, self.cx().type_i1()); + return self.unchecked_utrunc(val, self.cx().type_i1()); } val } @@ -942,6 +942,30 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { unsafe { llvm::LLVMBuildTrunc(self.llbuilder, val, dest_ty, UNNAMED) } } + fn unchecked_utrunc(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { + let trunc = self.trunc(val, dest_ty); + if llvm_util::get_version() >= (19, 0, 0) { + unsafe { + if llvm::LLVMIsATruncInst(trunc).is_some() { + llvm::LLVMSetNUW(trunc, True); + } + } + } + trunc + } + + fn unchecked_strunc(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { + let trunc = self.trunc(val, dest_ty); + if llvm_util::get_version() >= (19, 0, 0) { + unsafe { + if llvm::LLVMIsATruncInst(trunc).is_some() { + llvm::LLVMSetNSW(trunc, True); + } + } + } + trunc + } + fn sext(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { unsafe { llvm::LLVMBuildSExt(self.llbuilder, val, dest_ty, UNNAMED) } } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 3b0187b9d37b..1e105e86189f 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -1165,6 +1165,7 @@ unsafe extern "C" { // Operations on instructions pub(crate) fn LLVMIsAInstruction(Val: &Value) -> Option<&Value>; + pub(crate) fn LLVMIsATruncInst(Val: &Value) -> Option<&Value>; pub(crate) fn LLVMGetFirstBasicBlock(Fn: &Value) -> &BasicBlock; pub(crate) fn LLVMGetOperand(Val: &Value, Index: c_uint) -> Option<&Value>; diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index e800492dad02..a989e9c64c0f 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -24,7 +24,7 @@ use rustc_middle::query::Providers; use rustc_middle::ty::layout::{HasTyCtxt, HasTypingEnv, LayoutOf, TyAndLayout}; use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; use rustc_session::Session; -use rustc_session::config::{self, CrateType, EntryFnType, OptLevel, OutputType}; +use rustc_session::config::{self, CrateType, EntryFnType, OutputType}; use rustc_span::{DUMMY_SP, Symbol, sym}; use rustc_trait_selection::infer::{BoundRegionConversionTime, TyCtxtInferExt}; use rustc_trait_selection::traits::{ObligationCause, ObligationCtxt}; @@ -364,13 +364,7 @@ pub(crate) fn build_shift_expr_rhs<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>( let rhs_sz = bx.cx().int_width(rhs_llty); let lhs_sz = bx.cx().int_width(lhs_llty); if lhs_sz < rhs_sz { - if is_unchecked && bx.sess().opts.optimize != OptLevel::No { - // FIXME: Use `trunc nuw` once that's available - let inrange = bx.icmp(IntPredicate::IntULE, rhs, mask); - bx.assume(inrange); - } - - bx.trunc(rhs, lhs_llty) + if is_unchecked { bx.unchecked_utrunc(rhs, lhs_llty) } else { bx.trunc(rhs, lhs_llty) } } else if lhs_sz > rhs_sz { // We zero-extend even if the RHS is signed. So e.g. `(x: i32) << -1i8` will zero-extend the // RHS to `255i32`. But then we mask the shift amount to be within the size of the LHS diff --git a/compiler/rustc_codegen_ssa/src/traits/builder.rs b/compiler/rustc_codegen_ssa/src/traits/builder.rs index 48ae000f2c69..345db3130226 100644 --- a/compiler/rustc_codegen_ssa/src/traits/builder.rs +++ b/compiler/rustc_codegen_ssa/src/traits/builder.rs @@ -340,6 +340,17 @@ pub trait BuilderMethods<'a, 'tcx>: } fn trunc(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value; + /// Produces the same value as [`Self::trunc`] (and defaults to that), + /// but is UB unless the *zero*-extending the result can reproduce `val`. + fn unchecked_utrunc(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value { + self.trunc(val, dest_ty) + } + /// Produces the same value as [`Self::trunc`] (and defaults to that), + /// but is UB unless the *sign*-extending the result can reproduce `val`. + fn unchecked_strunc(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value { + self.trunc(val, dest_ty) + } + fn sext(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value; fn fptoui_sat(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value; fn fptosi_sat(&mut self, val: Self::Value, dest_ty: Self::Type) -> Self::Value; diff --git a/tests/codegen/intrinsics/transmute-niched.rs b/tests/codegen/intrinsics/transmute-niched.rs index 5ded0e192fa2..8ff5cc8ee4f4 100644 --- a/tests/codegen/intrinsics/transmute-niched.rs +++ b/tests/codegen/intrinsics/transmute-niched.rs @@ -170,7 +170,7 @@ pub unsafe fn check_bool_from_ordering(x: std::cmp::Ordering) -> bool { // OPT: call void @llvm.assume(i1 %2) // CHECK-NOT: icmp // CHECK-NOT: assume - // CHECK: %[[R:.+]] = trunc i8 %x to i1 + // CHECK: %[[R:.+]] = trunc{{( nuw)?}} i8 %x to i1 // CHECK: ret i1 %[[R]] transmute(x) diff --git a/tests/codegen/intrinsics/transmute.rs b/tests/codegen/intrinsics/transmute.rs index 5b40a6a12c0f..ff297b270657 100644 --- a/tests/codegen/intrinsics/transmute.rs +++ b/tests/codegen/intrinsics/transmute.rs @@ -11,6 +11,9 @@ use std::intrinsics::mir::*; use std::intrinsics::{transmute, transmute_unchecked}; use std::mem::MaybeUninit; +// FIXME(LLVM18REMOVED): `trunc nuw` doesn't exist in LLVM 18, so once we no +// longer support it the optional flag checks can be changed to required. + pub enum ZstNever {} #[repr(align(2))] @@ -153,7 +156,7 @@ pub unsafe fn check_from_newtype(x: Scalar64) -> u64 { pub unsafe fn check_aggregate_to_bool(x: Aggregate8) -> bool { // CHECK: %x = alloca [1 x i8], align 1 // CHECK: %[[BYTE:.+]] = load i8, ptr %x, align 1 - // CHECK: %[[BOOL:.+]] = trunc i8 %[[BYTE]] to i1 + // CHECK: %[[BOOL:.+]] = trunc{{( nuw)?}} i8 %[[BYTE]] to i1 // CHECK: ret i1 %[[BOOL]] transmute(x) } @@ -171,7 +174,7 @@ pub unsafe fn check_aggregate_from_bool(x: bool) -> Aggregate8 { #[no_mangle] pub unsafe fn check_byte_to_bool(x: u8) -> bool { // CHECK-NOT: alloca - // CHECK: %[[R:.+]] = trunc i8 %x to i1 + // CHECK: %[[R:.+]] = trunc{{( nuw)?}} i8 %x to i1 // CHECK: ret i1 %[[R]] transmute(x) } @@ -284,7 +287,7 @@ pub unsafe fn check_long_array_more_aligned(x: [u8; 100]) -> [u32; 25] { #[no_mangle] pub unsafe fn check_pair_with_bool(x: (u8, bool)) -> (bool, i8) { // CHECK-NOT: alloca - // CHECK: trunc i8 %x.0 to i1 + // CHECK: trunc{{( nuw)?}} i8 %x.0 to i1 // CHECK: zext i1 %x.1 to i8 transmute(x) } @@ -338,7 +341,7 @@ pub unsafe fn check_heterogeneous_integer_pair(x: (i32, bool)) -> (bool, u32) { // CHECK: store i8 %[[WIDER]] // CHECK: %[[BYTE:.+]] = load i8 - // CHECK: trunc i8 %[[BYTE:.+]] to i1 + // CHECK: trunc{{( nuw)?}} i8 %[[BYTE:.+]] to i1 // CHECK: load i32 transmute(x) } diff --git a/tests/codegen/transmute-scalar.rs b/tests/codegen/transmute-scalar.rs index 43da7c1781ef..c080259a9172 100644 --- a/tests/codegen/transmute-scalar.rs +++ b/tests/codegen/transmute-scalar.rs @@ -26,7 +26,7 @@ pub fn bool_to_byte(b: bool) -> u8 { } // CHECK-LABEL: define{{.*}}zeroext i1 @byte_to_bool(i8{{.*}} %byte) -// CHECK: %_0 = trunc i8 %byte to i1 +// CHECK: %_0 = trunc{{( nuw)?}} i8 %byte to i1 // CHECK-NEXT: ret i1 %_0 #[no_mangle] pub unsafe fn byte_to_bool(byte: u8) -> bool { diff --git a/tests/codegen/unchecked_shifts.rs b/tests/codegen/unchecked_shifts.rs index b27eb73c0cc9..a0d8990d29fd 100644 --- a/tests/codegen/unchecked_shifts.rs +++ b/tests/codegen/unchecked_shifts.rs @@ -1,4 +1,10 @@ -//@ compile-flags: -Copt-level=3 +//@ revisions: LLVM18 LLVM19PLUS +//@ compile-flags: -Copt-level=3 -C no-prepopulate-passes +//@[LLVM18] exact-llvm-major-version: 18 +//@[LLVM19PLUS] min-llvm-version: 19 + +// This runs mir-opts to inline the standard library call, but doesn't run LLVM +// optimizations so it doesn't need to worry about them adding more flags. #![crate_type = "lib"] #![feature(unchecked_shifts)] @@ -17,12 +23,9 @@ pub unsafe fn unchecked_shl_unsigned_same(a: u32, b: u32) -> u32 { // CHECK-LABEL: @unchecked_shl_unsigned_smaller #[no_mangle] pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { - // This uses -DAG to avoid failing on irrelevant reorderings, - // like emitting the truncation earlier. - - // CHECK-DAG: %[[INRANGE:.+]] = icmp ult i32 %b, 16 - // CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]]) - // CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i32 %b to i16 + // CHECK-NOT: assume + // LLVM18-DAG: %[[TRUNC:.+]] = trunc i32 %b to i16 + // LLVM19PLUS-DAG: %[[TRUNC:.+]] = trunc nuw i32 %b to i16 // CHECK-DAG: shl i16 %a, %[[TRUNC]] a.unchecked_shl(b) } @@ -31,7 +34,7 @@ pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { #[no_mangle] pub unsafe fn unchecked_shl_unsigned_bigger(a: u64, b: u32) -> u64 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i32 %b to i64 + // CHECK: %[[EXT:.+]] = zext i32 %b to i64 // CHECK: shl i64 %a, %[[EXT]] a.unchecked_shl(b) } @@ -49,13 +52,10 @@ pub unsafe fn unchecked_shr_signed_same(a: i32, b: u32) -> i32 { // CHECK-LABEL: @unchecked_shr_signed_smaller #[no_mangle] pub unsafe fn unchecked_shr_signed_smaller(a: i16, b: u32) -> i16 { - // This uses -DAG to avoid failing on irrelevant reorderings, - // like emitting the truncation earlier. - - // CHECK-DAG: %[[INRANGE:.+]] = icmp ult i32 %b, 16 - // CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]]) - // CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i32 %b to i16 - // CHECK-DAG: ashr i16 %a, %[[TRUNC]] + // CHECK-NOT: assume + // LLVM18: %[[TRUNC:.+]] = trunc i32 %b to i16 + // LLVM19PLUS: %[[TRUNC:.+]] = trunc nuw i32 %b to i16 + // CHECK: ashr i16 %a, %[[TRUNC]] a.unchecked_shr(b) } @@ -63,7 +63,7 @@ pub unsafe fn unchecked_shr_signed_smaller(a: i16, b: u32) -> i16 { #[no_mangle] pub unsafe fn unchecked_shr_signed_bigger(a: i64, b: u32) -> i64 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i32 %b to i64 + // CHECK: %[[EXT:.+]] = zext i32 %b to i64 // CHECK: ashr i64 %a, %[[EXT]] a.unchecked_shr(b) } @@ -72,7 +72,7 @@ pub unsafe fn unchecked_shr_signed_bigger(a: i64, b: u32) -> i64 { #[no_mangle] pub unsafe fn unchecked_shr_u128_i8(a: u128, b: i8) -> u128 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i8 %b to i128 + // CHECK: %[[EXT:.+]] = zext i8 %b to i128 // CHECK: lshr i128 %a, %[[EXT]] std::intrinsics::unchecked_shr(a, b) } @@ -81,7 +81,7 @@ pub unsafe fn unchecked_shr_u128_i8(a: u128, b: i8) -> u128 { #[no_mangle] pub unsafe fn unchecked_shl_i128_u8(a: i128, b: u8) -> i128 { // CHECK-NOT: assume - // CHECK: %[[EXT:.+]] = zext{{( nneg)?}} i8 %b to i128 + // CHECK: %[[EXT:.+]] = zext i8 %b to i128 // CHECK: shl i128 %a, %[[EXT]] std::intrinsics::unchecked_shl(a, b) } @@ -89,25 +89,19 @@ pub unsafe fn unchecked_shl_i128_u8(a: i128, b: u8) -> i128 { // CHECK-LABEL: @unchecked_shl_u8_i128 #[no_mangle] pub unsafe fn unchecked_shl_u8_i128(a: u8, b: i128) -> u8 { - // This uses -DAG to avoid failing on irrelevant reorderings, - // like emitting the truncation earlier. - - // CHECK-DAG: %[[INRANGE:.+]] = icmp ult i128 %b, 8 - // CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]]) - // CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i128 %b to i8 - // CHECK-DAG: shl i8 %a, %[[TRUNC]] + // CHECK-NOT: assume + // LLVM18: %[[TRUNC:.+]] = trunc i128 %b to i8 + // LLVM19PLUS: %[[TRUNC:.+]] = trunc nuw i128 %b to i8 + // CHECK: shl i8 %a, %[[TRUNC]] std::intrinsics::unchecked_shl(a, b) } // CHECK-LABEL: @unchecked_shr_i8_u128 #[no_mangle] pub unsafe fn unchecked_shr_i8_u128(a: i8, b: u128) -> i8 { - // This uses -DAG to avoid failing on irrelevant reorderings, - // like emitting the truncation earlier. - - // CHECK-DAG: %[[INRANGE:.+]] = icmp ult i128 %b, 8 - // CHECK-DAG: tail call void @llvm.assume(i1 %[[INRANGE]]) - // CHECK-DAG: %[[TRUNC:.+]] = trunc{{( nuw)?( nsw)?}} i128 %b to i8 - // CHECK-DAG: ashr i8 %a, %[[TRUNC]] + // CHECK-NOT: assume + // LLVM18: %[[TRUNC:.+]] = trunc i128 %b to i8 + // LLVM19PLUS: %[[TRUNC:.+]] = trunc nuw i128 %b to i8 + // CHECK: ashr i8 %a, %[[TRUNC]] std::intrinsics::unchecked_shr(a, b) } diff --git a/tests/codegen/union-abi.rs b/tests/codegen/union-abi.rs index 16022fad8af7..28acc4de2f32 100644 --- a/tests/codegen/union-abi.rs +++ b/tests/codegen/union-abi.rs @@ -142,4 +142,4 @@ pub union UnionBool { pub fn test_UnionBool(b: UnionBool) -> bool { unsafe { b.b } } -// CHECK: %_0 = trunc i8 %b to i1 +// CHECK: %_0 = trunc{{( nuw)?}} i8 %b to i1 From 642a705f714eaa73875b9bc9e7848568efc4b890 Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Sat, 15 Feb 2025 10:24:24 -0800 Subject: [PATCH 137/255] PR feedback --- compiler/rustc_codegen_llvm/src/builder.rs | 4 ++-- compiler/rustc_codegen_llvm/src/llvm/ffi.rs | 1 - tests/codegen/unchecked_shifts.rs | 6 +++--- 3 files changed, 5 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 18bb6a609aaa..5d1a133e8082 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -946,7 +946,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let trunc = self.trunc(val, dest_ty); if llvm_util::get_version() >= (19, 0, 0) { unsafe { - if llvm::LLVMIsATruncInst(trunc).is_some() { + if llvm::LLVMIsAInstruction(trunc).is_some() { llvm::LLVMSetNUW(trunc, True); } } @@ -958,7 +958,7 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let trunc = self.trunc(val, dest_ty); if llvm_util::get_version() >= (19, 0, 0) { unsafe { - if llvm::LLVMIsATruncInst(trunc).is_some() { + if llvm::LLVMIsAInstruction(trunc).is_some() { llvm::LLVMSetNSW(trunc, True); } } diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs index 1e105e86189f..3b0187b9d37b 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs @@ -1165,7 +1165,6 @@ unsafe extern "C" { // Operations on instructions pub(crate) fn LLVMIsAInstruction(Val: &Value) -> Option<&Value>; - pub(crate) fn LLVMIsATruncInst(Val: &Value) -> Option<&Value>; pub(crate) fn LLVMGetFirstBasicBlock(Fn: &Value) -> &BasicBlock; pub(crate) fn LLVMGetOperand(Val: &Value, Index: c_uint) -> Option<&Value>; diff --git a/tests/codegen/unchecked_shifts.rs b/tests/codegen/unchecked_shifts.rs index a0d8990d29fd..9fccaf2252e0 100644 --- a/tests/codegen/unchecked_shifts.rs +++ b/tests/codegen/unchecked_shifts.rs @@ -24,9 +24,9 @@ pub unsafe fn unchecked_shl_unsigned_same(a: u32, b: u32) -> u32 { #[no_mangle] pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { // CHECK-NOT: assume - // LLVM18-DAG: %[[TRUNC:.+]] = trunc i32 %b to i16 - // LLVM19PLUS-DAG: %[[TRUNC:.+]] = trunc nuw i32 %b to i16 - // CHECK-DAG: shl i16 %a, %[[TRUNC]] + // LLVM18: %[[TRUNC:.+]] = trunc i32 %b to i16 + // LLVM19PLUS: %[[TRUNC:.+]] = trunc nuw i32 %b to i16 + // CHECK: shl i16 %a, %[[TRUNC]] a.unchecked_shl(b) } From 6f9cfd694d67ad24af6c7e2235a2da5d22918df0 Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Sat, 15 Feb 2025 16:07:18 -0800 Subject: [PATCH 138/255] Rework `OperandRef::extract_field` to stop calling `to_immediate_scalar` on things which are already immediates That means it stops trying to truncate things that are already `i1`s. --- compiler/rustc_codegen_gcc/src/builder.rs | 12 +- .../rustc_codegen_gcc/src/intrinsic/mod.rs | 11 +- compiler/rustc_codegen_llvm/src/builder.rs | 10 +- compiler/rustc_codegen_ssa/src/mir/block.rs | 10 +- compiler/rustc_codegen_ssa/src/mir/operand.rs | 131 +++++++++--------- compiler/rustc_codegen_ssa/src/mir/rvalue.rs | 4 +- .../rustc_codegen_ssa/src/traits/builder.rs | 9 +- .../simd/project-to-simd-array-field.rs | 31 +++++ tests/crashes/project-to-simd-array-field.rs | 33 +++++ 9 files changed, 164 insertions(+), 87 deletions(-) create mode 100644 tests/codegen/simd/project-to-simd-array-field.rs create mode 100644 tests/crashes/project-to-simd-array-field.rs diff --git a/compiler/rustc_codegen_gcc/src/builder.rs b/compiler/rustc_codegen_gcc/src/builder.rs index 76846692459d..c8b7616e6450 100644 --- a/compiler/rustc_codegen_gcc/src/builder.rs +++ b/compiler/rustc_codegen_gcc/src/builder.rs @@ -989,10 +989,14 @@ impl<'a, 'gcc, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'gcc, 'tcx> { OperandValue::Ref(place.val) } else if place.layout.is_gcc_immediate() { let load = self.load(place.layout.gcc_type(self), place.val.llval, place.val.align); - if let abi::BackendRepr::Scalar(ref scalar) = place.layout.backend_repr { - scalar_load_metadata(self, load, scalar); - } - OperandValue::Immediate(self.to_immediate(load, place.layout)) + OperandValue::Immediate( + if let abi::BackendRepr::Scalar(ref scalar) = place.layout.backend_repr { + scalar_load_metadata(self, load, scalar); + self.to_immediate_scalar(load, *scalar) + } else { + load + }, + ) } else if let abi::BackendRepr::ScalarPair(ref a, ref b) = place.layout.backend_repr { let b_offset = a.size(self).align_to(b.align(self).abi); diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs index a1123fafe2f3..5322b731d8bb 100644 --- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs +++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs @@ -9,7 +9,7 @@ use gccjit::FunctionType; use gccjit::{ComparisonOp, Function, RValue, ToRValue, Type, UnaryOp}; #[cfg(feature = "master")] use rustc_abi::ExternAbi; -use rustc_abi::HasDataLayout; +use rustc_abi::{BackendRepr, HasDataLayout}; use rustc_codegen_ssa::MemFlags; use rustc_codegen_ssa::base::wants_msvc_seh; use rustc_codegen_ssa::common::IntPredicate; @@ -181,14 +181,19 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc sym::volatile_load | sym::unaligned_volatile_load => { let tp_ty = fn_args.type_at(0); let ptr = args[0].immediate(); + let layout = self.layout_of(tp_ty); let load = if let PassMode::Cast { cast: ref ty, pad_i32: _ } = fn_abi.ret.mode { let gcc_ty = ty.gcc_type(self); self.volatile_load(gcc_ty, ptr) } else { - self.volatile_load(self.layout_of(tp_ty).gcc_type(self), ptr) + self.volatile_load(layout.gcc_type(self), ptr) }; // TODO(antoyo): set alignment. - self.to_immediate(load, self.layout_of(tp_ty)) + if let BackendRepr::Scalar(scalar) = layout.backend_repr { + self.to_immediate_scalar(load, scalar) + } else { + load + } } sym::volatile_store => { let dst = args[0].deref(self.cx()); diff --git a/compiler/rustc_codegen_llvm/src/builder.rs b/compiler/rustc_codegen_llvm/src/builder.rs index 5d1a133e8082..e1609e31c070 100644 --- a/compiler/rustc_codegen_llvm/src/builder.rs +++ b/compiler/rustc_codegen_llvm/src/builder.rs @@ -746,10 +746,12 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { let load = self.load(llty, place.val.llval, place.val.align); if let abi::BackendRepr::Scalar(scalar) = place.layout.backend_repr { scalar_load_metadata(self, load, scalar, place.layout, Size::ZERO); + self.to_immediate_scalar(load, scalar) + } else { + load } - load }); - OperandValue::Immediate(self.to_immediate(llval, place.layout)) + OperandValue::Immediate(llval) } else if let abi::BackendRepr::ScalarPair(a, b) = place.layout.backend_repr { let b_offset = a.size(self).align_to(b.align(self).abi); @@ -943,6 +945,8 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } fn unchecked_utrunc(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { + debug_assert_ne!(self.val_ty(val), dest_ty); + let trunc = self.trunc(val, dest_ty); if llvm_util::get_version() >= (19, 0, 0) { unsafe { @@ -955,6 +959,8 @@ impl<'a, 'll, 'tcx> BuilderMethods<'a, 'tcx> for Builder<'a, 'll, 'tcx> { } fn unchecked_strunc(&mut self, val: &'ll Value, dest_ty: &'ll Type) -> &'ll Value { + debug_assert_ne!(self.val_ty(val), dest_ty); + let trunc = self.trunc(val, dest_ty); if llvm_util::get_version() >= (19, 0, 0) { unsafe { diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index 616d748a2995..0620f08fc731 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -1040,7 +1040,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let (idx, _) = op.layout.non_1zst_field(bx).expect( "not exactly one non-1-ZST field in a `DispatchFromDyn` type", ); - op = op.extract_field(bx, idx); + op = op.extract_field(self, bx, idx); } // Now that we have `*dyn Trait` or `&dyn Trait`, split it up into its @@ -1072,7 +1072,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { let (idx, _) = op.layout.non_1zst_field(bx).expect( "not exactly one non-1-ZST field in a `DispatchFromDyn` type", ); - op = op.extract_field(bx, idx); + op = op.extract_field(self, bx, idx); } // Make sure that we've actually unwrapped the rcvr down @@ -1572,9 +1572,9 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { if scalar.is_bool() { bx.range_metadata(llval, WrappingRange { start: 0, end: 1 }); } + // We store bools as `i8` so we need to truncate to `i1`. + llval = bx.to_immediate_scalar(llval, scalar); } - // We store bools as `i8` so we need to truncate to `i1`. - llval = bx.to_immediate(llval, arg.layout); } } @@ -1604,7 +1604,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { } else { // If the tuple is immediate, the elements are as well. for i in 0..tuple.layout.fields.count() { - let op = tuple.extract_field(bx, i); + let op = tuple.extract_field(self, bx, i); self.codegen_argument(bx, op, llargs, &args[i]); } } diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index 9ca7d4f8f004..958a52a2cb1d 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -1,15 +1,14 @@ -use std::assert_matches::assert_matches; use std::fmt; use arrayvec::ArrayVec; use either::Either; use rustc_abi as abi; use rustc_abi::{Align, BackendRepr, Size}; -use rustc_middle::bug; use rustc_middle::mir::interpret::{Pointer, Scalar, alloc_range}; use rustc_middle::mir::{self, ConstValue}; use rustc_middle::ty::Ty; use rustc_middle::ty::layout::{LayoutOf, TyAndLayout}; +use rustc_middle::{bug, span_bug}; use tracing::debug; use super::place::{PlaceRef, PlaceValue}; @@ -352,79 +351,83 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { pub(crate) fn extract_field>( &self, + fx: &mut FunctionCx<'a, 'tcx, Bx>, bx: &mut Bx, i: usize, ) -> Self { let field = self.layout.field(bx.cx(), i); let offset = self.layout.fields.offset(i); - let mut val = match (self.val, self.layout.backend_repr) { - // If the field is ZST, it has no data. - _ if field.is_zst() => OperandValue::ZeroSized, - - // Newtype of a scalar, scalar pair or vector. - (OperandValue::Immediate(_) | OperandValue::Pair(..), _) - if field.size == self.layout.size => - { - assert_eq!(offset.bytes(), 0); - self.val + let val = if field.is_zst() { + OperandValue::ZeroSized + } else if field.size == self.layout.size { + assert_eq!(offset.bytes(), 0); + if let Some(field_val) = fx.codegen_transmute_operand(bx, *self, field) { + field_val + } else { + // we have to go through memory for things like + // Newtype vector of array, e.g. #[repr(simd)] struct S([i32; 4]); + let place = PlaceRef::alloca(bx, field); + self.val.store(bx, place.val.with_type(self.layout)); + bx.load_operand(place).val } - - // Extract a scalar component from a pair. - (OperandValue::Pair(a_llval, b_llval), BackendRepr::ScalarPair(a, b)) => { - if offset.bytes() == 0 { - assert_eq!(field.size, a.size(bx.cx())); - OperandValue::Immediate(a_llval) - } else { - assert_eq!(offset, a.size(bx.cx()).align_to(b.align(bx.cx()).abi)); - assert_eq!(field.size, b.size(bx.cx())); - OperandValue::Immediate(b_llval) + } else { + let (in_scalar, imm) = match (self.val, self.layout.backend_repr) { + // Extract a scalar component from a pair. + (OperandValue::Pair(a_llval, b_llval), BackendRepr::ScalarPair(a, b)) => { + if offset.bytes() == 0 { + assert_eq!(field.size, a.size(bx.cx())); + (Some(a), a_llval) + } else { + assert_eq!(offset, a.size(bx.cx()).align_to(b.align(bx.cx()).abi)); + assert_eq!(field.size, b.size(bx.cx())); + (Some(b), b_llval) + } } - } - // `#[repr(simd)]` types are also immediate. - (OperandValue::Immediate(llval), BackendRepr::Vector { .. }) => { - OperandValue::Immediate(bx.extract_element(llval, bx.cx().const_usize(i as u64))) - } + // `#[repr(simd)]` types are also immediate. + (OperandValue::Immediate(llval), BackendRepr::Vector { .. }) => { + (None, bx.extract_element(llval, bx.cx().const_usize(i as u64))) + } - _ => bug!("OperandRef::extract_field({:?}): not applicable", self), + _ => { + span_bug!(fx.mir.span, "OperandRef::extract_field({:?}): not applicable", self) + } + }; + OperandValue::Immediate(match field.backend_repr { + BackendRepr::Vector { .. } => imm, + BackendRepr::Scalar(out_scalar) => { + let Some(in_scalar) = in_scalar else { + span_bug!( + fx.mir.span, + "OperandRef::extract_field({:?}): missing input scalar for output scalar", + self + ) + }; + if in_scalar != out_scalar { + // If the backend and backend_immediate types might differ, + // flip back to the backend type then to the new immediate. + // This avoids nop truncations, but still handles things like + // Bools in union fields needs to be truncated. + let backend = bx.from_immediate(imm); + bx.to_immediate_scalar(backend, out_scalar) + } else { + imm + } + } + BackendRepr::Memory { sized: true } => { + span_bug!( + fx.mir.span, + "Projecting into a simd type with padding doesn't work; \ + See ", + ); + } + BackendRepr::Uninhabited + | BackendRepr::ScalarPair(_, _) + | BackendRepr::Memory { sized: false } => bug!(), + }) }; - match (&mut val, field.backend_repr) { - (OperandValue::ZeroSized, _) => {} - ( - OperandValue::Immediate(llval), - BackendRepr::Scalar(_) | BackendRepr::ScalarPair(..) | BackendRepr::Vector { .. }, - ) => { - // Bools in union fields needs to be truncated. - *llval = bx.to_immediate(*llval, field); - } - (OperandValue::Pair(a, b), BackendRepr::ScalarPair(a_abi, b_abi)) => { - // Bools in union fields needs to be truncated. - *a = bx.to_immediate_scalar(*a, a_abi); - *b = bx.to_immediate_scalar(*b, b_abi); - } - // Newtype vector of array, e.g. #[repr(simd)] struct S([i32; 4]); - (OperandValue::Immediate(llval), BackendRepr::Memory { sized: true }) => { - assert_matches!(self.layout.backend_repr, BackendRepr::Vector { .. }); - - let llfield_ty = bx.cx().backend_type(field); - - // Can't bitcast an aggregate, so round trip through memory. - let llptr = bx.alloca(field.size, field.align.abi); - bx.store(*llval, llptr, field.align.abi); - *llval = bx.load(llfield_ty, llptr, field.align.abi); - } - ( - OperandValue::Immediate(_), - BackendRepr::Uninhabited | BackendRepr::Memory { sized: false }, - ) => { - bug!() - } - (OperandValue::Pair(..), _) => bug!(), - (OperandValue::Ref(..), _) => bug!(), - } - OperandRef { val, layout: field } } } @@ -587,7 +590,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { "Bad PlaceRef: destructing pointers should use cast/PtrMetadata, \ but tried to access field {f:?} of pointer {o:?}", ); - o = o.extract_field(bx, f.index()); + o = o.extract_field(self, bx, f.index()); } mir::ProjectionElem::Index(_) | mir::ProjectionElem::ConstantIndex { .. } => { diff --git a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs index 4c5b183cfe92..daa4fa90ed70 100644 --- a/compiler/rustc_codegen_ssa/src/mir/rvalue.rs +++ b/compiler/rustc_codegen_ssa/src/mir/rvalue.rs @@ -231,7 +231,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { /// /// Returns `None` for cases that can't work in that framework, such as for /// `Immediate`->`Ref` that needs an `alloc` to get the location. - fn codegen_transmute_operand( + pub(crate) fn codegen_transmute_operand( &mut self, bx: &mut Bx, operand: OperandRef<'tcx, Bx::Value>, @@ -260,6 +260,8 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { OperandValue::Ref(source_place_val) => { assert_eq!(source_place_val.llextra, None); assert_matches!(operand_kind, OperandValueKind::Ref); + // The existing alignment is part of `source_place_val`, + // so that alignment will be used, not `cast`'s. Some(bx.load_operand(source_place_val.with_type(cast)).val) } OperandValue::ZeroSized => { diff --git a/compiler/rustc_codegen_ssa/src/traits/builder.rs b/compiler/rustc_codegen_ssa/src/traits/builder.rs index 345db3130226..2b00ba01946e 100644 --- a/compiler/rustc_codegen_ssa/src/traits/builder.rs +++ b/compiler/rustc_codegen_ssa/src/traits/builder.rs @@ -1,7 +1,7 @@ use std::assert_matches::assert_matches; use std::ops::Deref; -use rustc_abi::{Align, BackendRepr, Scalar, Size, WrappingRange}; +use rustc_abi::{Align, Scalar, Size, WrappingRange}; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs; use rustc_middle::ty::layout::{FnAbiOf, LayoutOf, TyAndLayout}; use rustc_middle::ty::{Instance, Ty}; @@ -223,13 +223,6 @@ pub trait BuilderMethods<'a, 'tcx>: ) -> (Self::Value, Self::Value); fn from_immediate(&mut self, val: Self::Value) -> Self::Value; - fn to_immediate(&mut self, val: Self::Value, layout: TyAndLayout<'_>) -> Self::Value { - if let BackendRepr::Scalar(scalar) = layout.backend_repr { - self.to_immediate_scalar(val, scalar) - } else { - val - } - } fn to_immediate_scalar(&mut self, val: Self::Value, scalar: Scalar) -> Self::Value; fn alloca(&mut self, size: Size, align: Align) -> Self::Value; diff --git a/tests/codegen/simd/project-to-simd-array-field.rs b/tests/codegen/simd/project-to-simd-array-field.rs new file mode 100644 index 000000000000..29fab6406336 --- /dev/null +++ b/tests/codegen/simd/project-to-simd-array-field.rs @@ -0,0 +1,31 @@ +//@compile-flags: -Copt-level=3 + +#![crate_type = "lib"] +#![feature(repr_simd, core_intrinsics)] + +#[allow(non_camel_case_types)] +#[derive(Clone, Copy)] +#[repr(simd)] +struct i32x4([i32; 4]); + +#[inline(always)] +fn to_array4(a: i32x4) -> [i32; 4] { + a.0 +} + +// CHECK-LABEL: simd_add_self_then_return_array( +// CHECK-SAME: ptr{{.+}}sret{{.+}}%[[RET:.+]], +// CHECK-SAME: ptr{{.+}}%a) +#[no_mangle] +pub fn simd_add_self_then_return_array(a: &i32x4) -> [i32; 4] { + // It would be nice to just ban `.0` into simd types, + // but until we do this has to keep working. + // See also + + // CHECK: %[[T1:.+]] = load <4 x i32>, ptr %a + // CHECK: %[[T2:.+]] = shl <4 x i32> %[[T1]], {{splat \(i32 1\)|}} + // CHECK: store <4 x i32> %[[T2]], ptr %[[RET]] + let a = *a; + let b = unsafe { core::intrinsics::simd::simd_add(a, a) }; + to_array4(b) +} diff --git a/tests/crashes/project-to-simd-array-field.rs b/tests/crashes/project-to-simd-array-field.rs new file mode 100644 index 000000000000..6dc916c41dbd --- /dev/null +++ b/tests/crashes/project-to-simd-array-field.rs @@ -0,0 +1,33 @@ +//@ known-bug: #137108 +//@compile-flags: -Copt-level=3 + +// If you fix this, put it in the corresponding codegen test, +// not in a UI test like the readme says. + +#![crate_type = "lib"] + +#![feature(repr_simd, core_intrinsics)] + +#[allow(non_camel_case_types)] +#[derive(Clone, Copy)] +#[repr(simd)] +struct i32x3([i32; 3]); + +const _: () = { assert!(size_of::() == 16) }; + +#[inline(always)] +fn to_array3(a: i32x3) -> [i32; 3] { + a.0 +} + +// CHECK-LABEL: simd_add_self_then_return_array_packed( +// CHECK-SAME: ptr{{.+}}sret{{.+}}%[[RET:.+]], +// CHECK-SAME: ptr{{.+}}%a) +#[no_mangle] +pub fn simd_add_self_then_return_array_packed(a: i32x3) -> [i32; 3] { + // CHECK: %[[T1:.+]] = load <3 x i32>, ptr %a + // CHECK: %[[T2:.+]] = shl <3 x i32> %[[T1]], + // CHECK: store <3 x i32> %[[T2]], ptr %[[RET]] + let b = unsafe { core::intrinsics::simd::simd_add(a, a) }; + to_array3(b) +} From c9fbaab4533f109ce4e7b56ab8d3df0a49c46ffb Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Tue, 18 Feb 2025 14:16:22 +1100 Subject: [PATCH 139/255] Reflow `MirPhase` comments. Currently many of them exceed 100 chars, which makes them painful to read on a terminal that is 100 chars wide. --- compiler/rustc_middle/src/mir/syntax.rs | 47 +++++++++++++------------ 1 file changed, 25 insertions(+), 22 deletions(-) diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 389792a04f8a..69c19ae7b9c2 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -53,7 +53,8 @@ pub enum MirPhase { /// sequences of statements that would generally be subject to constant promotion are /// semantically constants, while in analysis MIR all constants are explicit. /// - /// The result of const promotion is available from the `mir_promoted` and `promoted_mir` queries. + /// The result of const promotion is available from the `mir_promoted` and `promoted_mir` + /// queries. /// /// This is the version of MIR used by borrowck and friends. Analysis(AnalysisPhase), @@ -61,26 +62,27 @@ pub enum MirPhase { /// /// The semantic changes that occur in the lowering from analysis to runtime MIR are as follows: /// - /// - Drops: In analysis MIR, `Drop` terminators represent *conditional* drops; roughly speaking, - /// if dataflow analysis determines that the place being dropped is uninitialized, the drop will - /// not be executed. The exact semantics of this aren't written down anywhere, which means they - /// are essentially "what drop elaboration does." In runtime MIR, the drops are unconditional; - /// when a `Drop` terminator is reached, if the type has drop glue that drop glue is always - /// executed. This may be UB if the underlying place is not initialized. - /// - Packed drops: Places might in general be misaligned - in most cases this is UB, the exception - /// is fields of packed structs. In analysis MIR, `Drop(P)` for a `P` that might be misaligned - /// for this reason implicitly moves `P` to a temporary before dropping. Runtime MIR has no such - /// rules, and dropping a misaligned place is simply UB. - /// - Unwinding: in analysis MIR, unwinding from a function which may not unwind aborts. In runtime - /// MIR, this is UB. - /// - Retags: If `-Zmir-emit-retag` is enabled, analysis MIR has "implicit" retags in the same way - /// that Rust itself has them. Where exactly these are is generally subject to change, and so we - /// don't document this here. Runtime MIR has most retags explicit (though implicit retags - /// can still occur at `Rvalue::{Ref,AddrOf}`). - /// - Coroutine bodies: In analysis MIR, locals may actually be behind a pointer that user code has - /// access to. This occurs in coroutine bodies. Such locals do not behave like other locals, - /// because they eg may be aliased in surprising ways. Runtime MIR has no such special locals - - /// all coroutine bodies are lowered and so all places that look like locals really are locals. + /// - Drops: In analysis MIR, `Drop` terminators represent *conditional* drops; roughly + /// speaking, if dataflow analysis determines that the place being dropped is uninitialized, + /// the drop will not be executed. The exact semantics of this aren't written down anywhere, + /// which means they are essentially "what drop elaboration does." In runtime MIR, the drops + /// are unconditional; when a `Drop` terminator is reached, if the type has drop glue that + /// drop glue is always executed. This may be UB if the underlying place is not initialized. + /// - Packed drops: Places might in general be misaligned - in most cases this is UB, the + /// exception is fields of packed structs. In analysis MIR, `Drop(P)` for a `P` that might be + /// misaligned for this reason implicitly moves `P` to a temporary before dropping. Runtime + /// MIR has no such rules, and dropping a misaligned place is simply UB. + /// - Unwinding: in analysis MIR, unwinding from a function which may not unwind aborts. In + /// runtime MIR, this is UB. + /// - Retags: If `-Zmir-emit-retag` is enabled, analysis MIR has "implicit" retags in the same + /// way that Rust itself has them. Where exactly these are is generally subject to change, + /// and so we don't document this here. Runtime MIR has most retags explicit (though implicit + /// retags can still occur at `Rvalue::{Ref,AddrOf}`). + /// - Coroutine bodies: In analysis MIR, locals may actually be behind a pointer that user code + /// has access to. This occurs in coroutine bodies. Such locals do not behave like other + /// locals, because they eg may be aliased in surprising ways. Runtime MIR has no such + /// special locals. All coroutine bodies are lowered and so all places that look like locals + /// really are locals. /// /// Also note that the lint pass which reports eg `200_u8 + 200_u8` as an error is run as a part /// of analysis to runtime MIR lowering. To ensure lints are reported reliably, this means that @@ -111,7 +113,8 @@ pub enum AnalysisPhase { /// * [`TerminatorKind::FalseEdge`] /// * [`StatementKind::FakeRead`] /// * [`StatementKind::AscribeUserType`] - /// * [`StatementKind::Coverage`] with [`CoverageKind::BlockMarker`] or [`CoverageKind::SpanMarker`] + /// * [`StatementKind::Coverage`] with [`CoverageKind::BlockMarker`] or + /// [`CoverageKind::SpanMarker`] /// * [`Rvalue::Ref`] with `BorrowKind::Fake` /// * [`CastKind::PointerCoercion`] with any of the following: /// * [`PointerCoercion::ArrayToPointer`] From c039533656d344b465cf95da721197a6fdd3d7f7 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Tue, 18 Feb 2025 14:33:59 +1100 Subject: [PATCH 140/255] Improve MIR phase comments. I found the dialect/phase distinction quite confusing when I first read these comments. This commit clarifies things a bit. --- compiler/rustc_middle/src/mir/syntax.rs | 51 ++++++++++++++----------- 1 file changed, 29 insertions(+), 22 deletions(-) diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index 69c19ae7b9c2..b63c4d172f2e 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -23,44 +23,49 @@ use crate::ty::{self, GenericArgsRef, List, Region, Ty, UserTypeAnnotationIndex} /// Represents the "flavors" of MIR. /// -/// All flavors of MIR use the same data structure, but there are some important differences. These -/// differences come in two forms: Dialects and phases. +/// The MIR pipeline is structured into a few major dialects, with one or more phases within each +/// dialect. A MIR flavor is identified by a dialect-phase pair. A single `MirPhase` value +/// specifies such a pair. All flavors of MIR use the same data structure to represent the program. /// -/// Dialects represent a stronger distinction than phases. This is because the transitions between -/// dialects are semantic changes, and therefore technically *lowerings* between distinct IRs. In -/// other words, the same [`Body`](crate::mir::Body) might be well-formed for multiple dialects, but -/// have different semantic meaning and different behavior at runtime. +/// Different MIR dialects have different semantics. (The differences between dialects are small, +/// but they do exist.) The progression from one MIR dialect to the next is technically a lowering +/// from one IR to another. In other words, a single well-formed [`Body`](crate::mir::Body) might +/// have different semantic meaning and different behavior at runtime in the different dialects. +/// The specific differences between dialects are described on the variants below. /// -/// Each dialect additionally has a number of phases. However, phase changes never involve semantic -/// changes. If some MIR is well-formed both before and after a phase change, it is also guaranteed -/// that it has the same semantic meaning. In this sense, phase changes can only add additional -/// restrictions on what MIR is well-formed. +/// Phases exist only to place restrictions on what language constructs are permitted in +/// well-formed MIR, and subsequent phases mostly increase those restrictions. I.e. to convert MIR +/// from one phase to the next might require removing/replacing certain MIR constructs. /// -/// When adding phases, remember to update [`MirPhase::phase_index`]. +/// When adding dialects or phases, remember to update [`MirPhase::phase_index`]. #[derive(Copy, Clone, TyEncodable, TyDecodable, Debug, PartialEq, Eq, PartialOrd, Ord)] #[derive(HashStable)] pub enum MirPhase { - /// The MIR that is generated by MIR building. + /// The "built MIR" dialect, as generated by MIR building. /// /// The only things that operate on this dialect are unsafeck, the various MIR lints, and const /// qualifs. /// - /// This has no distinct phases. + /// This dialect has just the one (implicit) phase, which places few restrictions on what MIR + /// constructs are allowed. Built, - /// The MIR used for most analysis. + + /// The "analysis MIR" dialect, used for borrowck and friends. /// - /// The only semantic change between analysis and built MIR is constant promotion. In built MIR, - /// sequences of statements that would generally be subject to constant promotion are - /// semantically constants, while in analysis MIR all constants are explicit. + /// The only semantic difference between built MIR and analysis MIR relates to constant + /// promotion. In built MIR, sequences of statements that would generally be subject to + /// constant promotion are semantically constants, while in analysis MIR all constants are + /// explicit. /// /// The result of const promotion is available from the `mir_promoted` and `promoted_mir` /// queries. /// - /// This is the version of MIR used by borrowck and friends. + /// The phases of this dialect are described in `AnalysisPhase`. Analysis(AnalysisPhase), - /// The MIR used for CTFE, optimizations, and codegen. + + /// The "runtime MIR" dialect, used for CTFE, optimizations, and codegen. /// - /// The semantic changes that occur in the lowering from analysis to runtime MIR are as follows: + /// The semantic differences between analysis MIR and runtime MIR are as follows. /// /// - Drops: In analysis MIR, `Drop` terminators represent *conditional* drops; roughly /// speaking, if dataflow analysis determines that the place being dropped is uninitialized, @@ -80,13 +85,15 @@ pub enum MirPhase { /// retags can still occur at `Rvalue::{Ref,AddrOf}`). /// - Coroutine bodies: In analysis MIR, locals may actually be behind a pointer that user code /// has access to. This occurs in coroutine bodies. Such locals do not behave like other - /// locals, because they eg may be aliased in surprising ways. Runtime MIR has no such + /// locals, because they e.g. may be aliased in surprising ways. Runtime MIR has no such /// special locals. All coroutine bodies are lowered and so all places that look like locals /// really are locals. /// /// Also note that the lint pass which reports eg `200_u8 + 200_u8` as an error is run as a part /// of analysis to runtime MIR lowering. To ensure lints are reported reliably, this means that - /// transformations which may suppress such errors should not run on analysis MIR. + /// transformations that can suppress such errors should not run on analysis MIR. + /// + /// The phases of this dialect are described in `RuntimePhase`. Runtime(RuntimePhase), } From 83a7fb61fbf2377961d05cad10a699fd954a4bb7 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Tue, 18 Feb 2025 15:17:50 +1100 Subject: [PATCH 141/255] Improve how the MIR dialect/phase index is reported. The only visible change is to the filenames produce by `-Zdump-mir`. E.g. before and after: ``` h.main.003-000.analysis-post-cleanup.after.mir h.main.2-2-000.analysis-post-cleanup.after.mir ``` It also fixes a FIXME comment. --- compiler/rustc_middle/src/mir/mod.rs | 21 +++++++-------------- compiler/rustc_middle/src/mir/pretty.rs | 3 ++- compiler/rustc_middle/src/mir/syntax.rs | 2 +- 3 files changed, 10 insertions(+), 16 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 528da4ca0577..096422369dc0 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -99,20 +99,13 @@ impl<'tcx> HasLocalDecls<'tcx> for Body<'tcx> { } impl MirPhase { - /// Gets the index of the current MirPhase within the set of all `MirPhase`s. - /// - /// FIXME(JakobDegen): Return a `(usize, usize)` instead. - pub fn phase_index(&self) -> usize { - const BUILT_PHASE_COUNT: usize = 1; - const ANALYSIS_PHASE_COUNT: usize = 2; - match self { - MirPhase::Built => 1, - MirPhase::Analysis(analysis_phase) => { - 1 + BUILT_PHASE_COUNT + (*analysis_phase as usize) - } - MirPhase::Runtime(runtime_phase) => { - 1 + BUILT_PHASE_COUNT + ANALYSIS_PHASE_COUNT + (*runtime_phase as usize) - } + /// Gets the (dialect, phase) index of the current `MirPhase`. Both numbers + /// are 1-indexed. + pub fn index(&self) -> (usize, usize) { + match *self { + MirPhase::Built => (1, 1), + MirPhase::Analysis(analysis_phase) => (2, 1 + analysis_phase as usize), + MirPhase::Runtime(runtime_phase) => (3, 1 + runtime_phase as usize), } } diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 1e3b8d029e1b..dd3de48fc14f 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -231,7 +231,8 @@ fn dump_path<'tcx>( let pass_num = if tcx.sess.opts.unstable_opts.dump_mir_exclude_pass_number { String::new() } else if pass_num { - format!(".{:03}-{:03}", body.phase.phase_index(), body.pass_count) + let (dialect_index, phase_index) = body.phase.index(); + format!(".{}-{}-{:03}", dialect_index, phase_index, body.pass_count) } else { ".-------".to_string() }; diff --git a/compiler/rustc_middle/src/mir/syntax.rs b/compiler/rustc_middle/src/mir/syntax.rs index b63c4d172f2e..af6f0e4c5518 100644 --- a/compiler/rustc_middle/src/mir/syntax.rs +++ b/compiler/rustc_middle/src/mir/syntax.rs @@ -37,7 +37,7 @@ use crate::ty::{self, GenericArgsRef, List, Region, Ty, UserTypeAnnotationIndex} /// well-formed MIR, and subsequent phases mostly increase those restrictions. I.e. to convert MIR /// from one phase to the next might require removing/replacing certain MIR constructs. /// -/// When adding dialects or phases, remember to update [`MirPhase::phase_index`]. +/// When adding dialects or phases, remember to update [`MirPhase::index`]. #[derive(Copy, Clone, TyEncodable, TyDecodable, Debug, PartialEq, Eq, PartialOrd, Ord)] #[derive(HashStable)] pub enum MirPhase { From dc4f948299b58e1d34c0267c17eea09a1119e8c7 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 5 Feb 2025 15:39:15 +1100 Subject: [PATCH 142/255] Move `StatementAsExpression` to where it's actually used. Also minimize some visibilities in the destination file. --- compiler/rustc_middle/src/traits/mod.rs | 6 ------ .../src/error_reporting/infer/suggest.rs | 21 ++++++++++++------- 2 files changed, 13 insertions(+), 14 deletions(-) diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index f039da772fd4..23c06f712322 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -514,12 +514,6 @@ impl<'tcx> ObligationCauseCode<'tcx> { #[cfg(target_pointer_width = "64")] rustc_data_structures::static_assert_size!(ObligationCauseCode<'_>, 48); -#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] -pub enum StatementAsExpression { - CorrectType, - NeedsBoxing, -} - #[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] #[derive(TypeVisitable, TypeFoldable)] pub struct MatchExpressionArmCause<'tcx> { diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs index 628888c8d45c..a87a449daf1c 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs @@ -10,7 +10,6 @@ use rustc_hir::def::Res; use rustc_hir::{MatchSource, Node}; use rustc_middle::traits::{ IfExpressionCause, MatchExpressionArmCause, ObligationCause, ObligationCauseCode, - StatementAsExpression, }; use rustc_middle::ty::error::TypeError; use rustc_middle::ty::print::with_no_trimmed_paths; @@ -26,8 +25,14 @@ use crate::errors::{ SuggestTuplePatternMany, SuggestTuplePatternOne, TypeErrorAdditionalDiags, }; +#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)] +enum StatementAsExpression { + CorrectType, + NeedsBoxing, +} + #[derive(Clone, Copy)] -pub enum SuggestAsRefKind { +enum SuggestAsRefKind { Option, Result, } @@ -382,7 +387,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } } - pub fn suggest_function_pointers_impl( + pub(crate) fn suggest_function_pointers_impl( &self, span: Option, exp_found: &ty::error::ExpectedFound>, @@ -518,7 +523,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { } } - pub fn should_suggest_as_ref_kind( + fn should_suggest_as_ref_kind( &self, expected: Ty<'tcx>, found: Ty<'tcx>, @@ -588,8 +593,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { ) -> Option { /// Find the if expression with given span struct IfVisitor { - pub found_if: bool, - pub err_span: Span, + found_if: bool, + err_span: Span, } impl<'v> Visitor<'v> for IfVisitor { @@ -736,7 +741,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { impl<'tcx> TypeErrCtxt<'_, 'tcx> { /// Be helpful when the user wrote `{... expr; }` and taking the `;` off /// is enough to fix the error. - pub fn could_remove_semicolon( + fn could_remove_semicolon( &self, blk: &'tcx hir::Block<'tcx>, expected_ty: Ty<'tcx>, @@ -816,7 +821,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { /// Suggest returning a local binding with a compatible type if the block /// has no return expression. - pub fn consider_returning_binding_diag( + fn consider_returning_binding_diag( &self, blk: &'tcx hir::Block<'tcx>, expected_ty: Ty<'tcx>, From 0895fe20e2f8ea4603fddae35412e0bc00511457 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 5 Feb 2025 16:31:16 +1100 Subject: [PATCH 143/255] Remove unused items from `query.rs`. --- compiler/rustc_middle/src/traits/query.rs | 6 ------ 1 file changed, 6 deletions(-) diff --git a/compiler/rustc_middle/src/traits/query.rs b/compiler/rustc_middle/src/traits/query.rs index 4203c8fd8614..76f3d2bab9cf 100644 --- a/compiler/rustc_middle/src/traits/query.rs +++ b/compiler/rustc_middle/src/traits/query.rs @@ -75,12 +75,6 @@ pub type CanonicalPredicateGoal<'tcx> = pub type CanonicalTypeOpAscribeUserTypeGoal<'tcx> = CanonicalQueryInput<'tcx, ty::ParamEnvAnd<'tcx, type_op::AscribeUserType<'tcx>>>; -pub type CanonicalTypeOpEqGoal<'tcx> = - CanonicalQueryInput<'tcx, ty::ParamEnvAnd<'tcx, type_op::Eq<'tcx>>>; - -pub type CanonicalTypeOpSubtypeGoal<'tcx> = - CanonicalQueryInput<'tcx, ty::ParamEnvAnd<'tcx, type_op::Subtype<'tcx>>>; - pub type CanonicalTypeOpProvePredicateGoal<'tcx> = CanonicalQueryInput<'tcx, ty::ParamEnvAnd<'tcx, type_op::ProvePredicate<'tcx>>>; From cae9ebbe1e09c2878d56ab1425d3765f450fd5fe Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 19 Feb 2025 14:08:52 +1100 Subject: [PATCH 144/255] Simplify `Postorder` customization. `Postorder` has a `C: Customization<'tcx>` parameter, that gives it flexibility about how it computes successors. But in practice, there are only two `impls` of `Customization`, and one is for the unit type. This commit simplifies things by removing the generic parameter and replacing it with an `Option`. --- compiler/rustc_middle/src/mir/basic_blocks.rs | 2 +- compiler/rustc_middle/src/mir/traversal.rs | 47 +++++-------------- src/tools/clippy/clippy_utils/src/mir/mod.rs | 2 +- 3 files changed, 15 insertions(+), 36 deletions(-) diff --git a/compiler/rustc_middle/src/mir/basic_blocks.rs b/compiler/rustc_middle/src/mir/basic_blocks.rs index 107c3198525a..171542d1279c 100644 --- a/compiler/rustc_middle/src/mir/basic_blocks.rs +++ b/compiler/rustc_middle/src/mir/basic_blocks.rs @@ -79,7 +79,7 @@ impl<'tcx> BasicBlocks<'tcx> { #[inline] pub fn reverse_postorder(&self) -> &[BasicBlock] { self.cache.reverse_postorder.get_or_init(|| { - let mut rpo: Vec<_> = Postorder::new(&self.basic_blocks, START_BLOCK, ()).collect(); + let mut rpo: Vec<_> = Postorder::new(&self.basic_blocks, START_BLOCK, None).collect(); rpo.reverse(); rpo }) diff --git a/compiler/rustc_middle/src/mir/traversal.rs b/compiler/rustc_middle/src/mir/traversal.rs index 0e7dcc24dafa..5950ac295af1 100644 --- a/compiler/rustc_middle/src/mir/traversal.rs +++ b/compiler/rustc_middle/src/mir/traversal.rs @@ -104,23 +104,21 @@ impl<'a, 'tcx> Iterator for Preorder<'a, 'tcx> { /// ``` /// /// A Postorder traversal of this graph is `D B C A` or `D C B A` -pub struct Postorder<'a, 'tcx, C> { +pub struct Postorder<'a, 'tcx> { basic_blocks: &'a IndexSlice>, visited: DenseBitSet, visit_stack: Vec<(BasicBlock, Successors<'a>)>, root_is_start_block: bool, - extra: C, + /// A non-empty `extra` allows for a precise calculation of the successors. + extra: Option<(TyCtxt<'tcx>, Instance<'tcx>)>, } -impl<'a, 'tcx, C> Postorder<'a, 'tcx, C> -where - C: Customization<'tcx>, -{ +impl<'a, 'tcx> Postorder<'a, 'tcx> { pub fn new( basic_blocks: &'a IndexSlice>, root: BasicBlock, - extra: C, - ) -> Postorder<'a, 'tcx, C> { + extra: Option<(TyCtxt<'tcx>, Instance<'tcx>)>, + ) -> Postorder<'a, 'tcx> { let mut po = Postorder { basic_blocks, visited: DenseBitSet::new_empty(basic_blocks.len()), @@ -140,7 +138,11 @@ where return; } let data = &self.basic_blocks[bb]; - let successors = C::successors(data, self.extra); + let successors = if let Some(extra) = self.extra { + data.mono_successors(extra.0, extra.1) + } else { + data.terminator().successors() + }; self.visit_stack.push((bb, successors)); } @@ -198,10 +200,7 @@ where } } -impl<'tcx, C> Iterator for Postorder<'_, 'tcx, C> -where - C: Customization<'tcx>, -{ +impl<'tcx> Iterator for Postorder<'_, 'tcx> { type Item = BasicBlock; fn next(&mut self) -> Option { @@ -241,32 +240,12 @@ pub fn postorder<'a, 'tcx>( reverse_postorder(body).rev() } -/// Lets us plug in some additional logic and data into a Postorder traversal. Or not. -pub trait Customization<'tcx>: Copy { - fn successors<'a>(_: &'a BasicBlockData<'tcx>, _: Self) -> Successors<'a>; -} - -impl<'tcx> Customization<'tcx> for () { - fn successors<'a>(data: &'a BasicBlockData<'tcx>, _: ()) -> Successors<'a> { - data.terminator().successors() - } -} - -impl<'tcx> Customization<'tcx> for (TyCtxt<'tcx>, Instance<'tcx>) { - fn successors<'a>( - data: &'a BasicBlockData<'tcx>, - (tcx, instance): (TyCtxt<'tcx>, Instance<'tcx>), - ) -> Successors<'a> { - data.mono_successors(tcx, instance) - } -} - pub fn mono_reachable_reverse_postorder<'a, 'tcx>( body: &'a Body<'tcx>, tcx: TyCtxt<'tcx>, instance: Instance<'tcx>, ) -> Vec { - let mut iter = Postorder::new(&body.basic_blocks, START_BLOCK, (tcx, instance)); + let mut iter = Postorder::new(&body.basic_blocks, START_BLOCK, Some((tcx, instance))); let mut items = Vec::with_capacity(body.basic_blocks.len()); while let Some(block) = iter.next() { items.push(block); diff --git a/src/tools/clippy/clippy_utils/src/mir/mod.rs b/src/tools/clippy/clippy_utils/src/mir/mod.rs index 637c0bafd964..ffcfcd240ea5 100644 --- a/src/tools/clippy/clippy_utils/src/mir/mod.rs +++ b/src/tools/clippy/clippy_utils/src/mir/mod.rs @@ -30,7 +30,7 @@ pub fn visit_local_usage(locals: &[Local], mir: &Body<'_>, location: Location) - locals.len() ]; - traversal::Postorder::new(&mir.basic_blocks, location.block, ()) + traversal::Postorder::new(&mir.basic_blocks, location.block, None) .collect::>() .into_iter() .rev() From d4609f8d4298ec3068b7dc957bad1df91031f347 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 03:36:58 +0000 Subject: [PATCH 145/255] Use a probe to avoid registering stray region obligations when re-checking drops in MIR typeck --- .../src/type_check/liveness/trace.rs | 22 ++++++++++++------- compiler/rustc_infer/src/infer/mod.rs | 2 +- tests/ui/borrowck/bad-drop-side-effects.rs | 18 +++++++++++++++ .../ui/borrowck/bad-drop-side-effects.stderr | 9 ++++++++ 4 files changed, 42 insertions(+), 9 deletions(-) create mode 100644 tests/ui/borrowck/bad-drop-side-effects.rs create mode 100644 tests/ui/borrowck/bad-drop-side-effects.stderr diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 148e75aa84cc..12e8be41614b 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -613,9 +613,14 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { // types, so there's no guarantee that it succeeds. We also // can't rely on the the `ErrorGuaranteed` from `fully_perform` here // because it comes from delay_span_bug. - let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx); - let errors = - match dropck_outlives::compute_dropck_outlives_with_errors(&ocx, op, span) { + // + // Do this inside of a probe because we don't particularly care (or want) + // any region side-effects of this operation in our infcx. + typeck.infcx.probe(|_| { + let ocx = ObligationCtxt::new_with_diagnostics(&typeck.infcx); + let errors = match dropck_outlives::compute_dropck_outlives_with_errors( + &ocx, op, span, + ) { Ok(_) => ocx.select_all_or_error(), Err(e) => { if e.is_empty() { @@ -626,11 +631,12 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { } }; - if !errors.is_empty() { - typeck.infcx.err_ctxt().report_fulfillment_errors(errors); - } else { - span_bug!(span, "Rerunning drop data query produced no error."); - } + if !errors.is_empty() { + typeck.infcx.err_ctxt().report_fulfillment_errors(errors); + } else { + span_bug!(span, "Rerunning drop data query produced no error."); + } + }); DropData { dropck_result: Default::default(), region_constraint_data: None } } } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index c2513a1af198..88a325a39be5 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -950,7 +950,7 @@ impl<'tcx> InferCtxt<'tcx> { let inner = self.inner.borrow(); assert!(!UndoLogs::>::in_snapshot(&inner.undo_log)); let storage = inner.region_constraint_storage.as_ref().expect("regions already resolved"); - assert!(storage.data.is_empty()); + assert!(storage.data.is_empty(), "{:#?}", storage.data); // We clone instead of taking because borrowck still wants to use the // inference context after calling this for diagnostics and the new // trait solver. diff --git a/tests/ui/borrowck/bad-drop-side-effects.rs b/tests/ui/borrowck/bad-drop-side-effects.rs new file mode 100644 index 000000000000..a09b7087608f --- /dev/null +++ b/tests/ui/borrowck/bad-drop-side-effects.rs @@ -0,0 +1,18 @@ +// Regression test for . + +trait B { + type C; +} + +impl B for &Missing { +//~^ ERROR cannot find type `Missing` in this scope + type C = (); +} + +struct E { + g: ::C, +} + +fn h(i: Box>) {} + +fn main() {} diff --git a/tests/ui/borrowck/bad-drop-side-effects.stderr b/tests/ui/borrowck/bad-drop-side-effects.stderr new file mode 100644 index 000000000000..0a5998c7e483 --- /dev/null +++ b/tests/ui/borrowck/bad-drop-side-effects.stderr @@ -0,0 +1,9 @@ +error[E0412]: cannot find type `Missing` in this scope + --> $DIR/bad-drop-side-effects.rs:7:16 + | +LL | impl B for &Missing { + | ^^^^^^^ not found in this scope + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0412`. From 51d9a6c617b6e7357b506e59a4b4a64e5e63a825 Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Wed, 29 Jan 2025 06:31:50 +0000 Subject: [PATCH 146/255] Track where crate dependencies come from in `creader` Introduce an enum that represents the different possible sources for dependencies, and use them where possible. This will enable more fine grained control and provides better context than passing the `dep_root` tuple. Use this to ensure that injected crates always show up as private by default. --- compiler/rustc_metadata/src/creader.rs | 93 ++++++++++++++++++++------ 1 file changed, 73 insertions(+), 20 deletions(-) diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index c2dda21bb72e..9efe18af863a 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -162,6 +162,39 @@ impl<'a> std::fmt::Debug for CrateDump<'a> { } } +/// Reason that a crate is being sourced as a dependency. +#[derive(Clone, Copy)] +enum CrateOrigin<'a> { + /// This crate was a dependency of another crate. + IndirectDependency { + dep_root: &'a CratePaths, + /// Dependency info about this crate. + dep: &'a CrateDep, + }, + /// Injected by `rustc`. + Injected, + /// Provided by `extern crate foo` or as part of the extern prelude. + Extern, +} + +impl<'a> CrateOrigin<'a> { + /// Return the dependency root, if any. + fn dep_root(&self) -> Option<&'a CratePaths> { + match self { + CrateOrigin::IndirectDependency { dep_root, .. } => Some(dep_root), + _ => None, + } + } + + /// Return dependency information, if any. + fn dep(&self) -> Option<&'a CrateDep> { + match self { + CrateOrigin::IndirectDependency { dep, .. } => Some(dep), + _ => None, + } + } +} + impl CStore { pub fn from_tcx(tcx: TyCtxt<'_>) -> FreezeReadGuard<'_, CStore> { FreezeReadGuard::map(tcx.untracked().cstore.read(), |cstore| { @@ -497,7 +530,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { &self, name: Symbol, private_dep: Option, - dep_root: Option<&CratePaths>, + origin: CrateOrigin<'_>, ) -> bool { // Standard library crates are never private. if STDLIB_STABLE_CRATES.contains(&name) { @@ -505,12 +538,16 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { return false; } + if matches!(origin, CrateOrigin::Injected) { + return true; + } + let extern_private = self.sess.opts.externs.get(name.as_str()).map(|e| e.is_private_dep); // Any descendants of `std` should be private. These crates are usually not marked // private in metadata, so we ignore that field. if extern_private.is_none() - && let Some(dep) = dep_root + && let Some(dep) = origin.dep_root() && STDLIB_STABLE_CRATES.contains(&dep.name) { return true; @@ -528,7 +565,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { fn register_crate( &mut self, host_lib: Option, - dep_root: Option<&CratePaths>, + origin: CrateOrigin<'_>, lib: Library, dep_kind: CrateDepKind, name: Symbol, @@ -540,7 +577,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { let Library { source, metadata } = lib; let crate_root = metadata.get_root(); let host_hash = host_lib.as_ref().map(|lib| lib.metadata.get_root().hash()); - let private_dep = self.is_private_dep(name, private_dep, dep_root); + let private_dep = self.is_private_dep(name, private_dep, origin); // Claim this crate number and cache it let feed = self.cstore.intern_stable_crate_id(&crate_root, self.tcx)?; @@ -556,7 +593,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { // Maintain a reference to the top most crate. // Stash paths for top-most crate locally if necessary. let crate_paths; - let dep_root = if let Some(dep_root) = dep_root { + let dep_root = if let Some(dep_root) = origin.dep_root() { dep_root } else { crate_paths = CratePaths::new(crate_root.name(), source.clone()); @@ -664,17 +701,19 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { name: Symbol, span: Span, dep_kind: CrateDepKind, + origin: CrateOrigin<'_>, ) -> Option { self.used_extern_options.insert(name); - match self.maybe_resolve_crate(name, dep_kind, None) { + match self.maybe_resolve_crate(name, dep_kind, origin) { Ok(cnum) => { self.cstore.set_used_recursively(cnum); Some(cnum) } Err(err) => { debug!("failed to resolve crate {} {:?}", name, dep_kind); - let missing_core = - self.maybe_resolve_crate(sym::core, CrateDepKind::Explicit, None).is_err(); + let missing_core = self + .maybe_resolve_crate(sym::core, CrateDepKind::Explicit, CrateOrigin::Extern) + .is_err(); err.report(self.sess, span, missing_core); None } @@ -685,15 +724,15 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { &'b mut self, name: Symbol, mut dep_kind: CrateDepKind, - dep_of: Option<(&'b CratePaths, &'b CrateDep)>, + origin: CrateOrigin<'b>, ) -> Result { info!("resolving crate `{}`", name); if !name.as_str().is_ascii() { return Err(CrateError::NonAsciiName(name)); } - let dep_root = dep_of.map(|d| d.0); - let dep = dep_of.map(|d| d.1); + let dep_root = origin.dep_root(); + let dep = origin.dep(); let hash = dep.map(|d| d.hash); let host_hash = dep.map(|d| d.host_hash).flatten(); let extra_filename = dep.map(|d| &d.extra_filename[..]); @@ -736,7 +775,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { // not specified by `--extern` on command line parameters, it may be // `private-dependency` when `register_crate` is called for the first time. Then it must be updated to // `public-dependency` here. - let private_dep = self.is_private_dep(name, private_dep, dep_root); + let private_dep = self.is_private_dep(name, private_dep, origin); let data = self.cstore.get_crate_data_mut(cnum); if data.is_proc_macro_crate() { dep_kind = CrateDepKind::MacrosOnly; @@ -747,7 +786,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { } (LoadResult::Loaded(library), host_library) => { info!("register newly loaded library for `{}`", name); - self.register_crate(host_library, dep_root, library, dep_kind, name, private_dep) + self.register_crate(host_library, origin, library, dep_kind, name, private_dep) } _ => panic!(), } @@ -823,7 +862,11 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { CrateDepKind::MacrosOnly => CrateDepKind::MacrosOnly, _ => dep.kind, }; - let cnum = self.maybe_resolve_crate(dep.name, dep_kind, Some((dep_root, &dep)))?; + let cnum = self.maybe_resolve_crate( + dep.name, + dep_kind, + CrateOrigin::IndirectDependency { dep_root, dep: &dep }, + )?; crate_num_map.push(cnum); } @@ -917,7 +960,9 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { }; info!("panic runtime not found -- loading {}", name); - let Some(cnum) = self.resolve_crate(name, DUMMY_SP, CrateDepKind::Implicit) else { + let Some(cnum) = + self.resolve_crate(name, DUMMY_SP, CrateDepKind::Implicit, CrateOrigin::Injected) + else { return; }; let data = self.cstore.get_crate_data(cnum); @@ -946,7 +991,9 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { info!("loading profiler"); let name = Symbol::intern(&self.sess.opts.unstable_opts.profiler_runtime); - let Some(cnum) = self.resolve_crate(name, DUMMY_SP, CrateDepKind::Implicit) else { + let Some(cnum) = + self.resolve_crate(name, DUMMY_SP, CrateDepKind::Implicit, CrateOrigin::Injected) + else { return; }; let data = self.cstore.get_crate_data(cnum); @@ -1059,7 +1106,12 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { if entry.force { let name_interned = Symbol::intern(name); if !self.used_extern_options.contains(&name_interned) { - self.resolve_crate(name_interned, DUMMY_SP, CrateDepKind::Explicit); + self.resolve_crate( + name_interned, + DUMMY_SP, + CrateDepKind::Explicit, + CrateOrigin::Extern, + ); } } } @@ -1185,6 +1237,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { info!("{:?}", CrateDump(self.cstore)); } + /// Process an `extern crate foo` AST node. pub fn process_extern_crate( &mut self, item: &ast::Item, @@ -1210,7 +1263,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { CrateDepKind::Explicit }; - let cnum = self.resolve_crate(name, item.span, dep_kind)?; + let cnum = self.resolve_crate(name, item.span, dep_kind, CrateOrigin::Extern)?; let path_len = definitions.def_path(def_id).data.len(); self.cstore.update_extern_crate( @@ -1229,7 +1282,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { } pub fn process_path_extern(&mut self, name: Symbol, span: Span) -> Option { - let cnum = self.resolve_crate(name, span, CrateDepKind::Explicit)?; + let cnum = self.resolve_crate(name, span, CrateDepKind::Explicit, CrateOrigin::Extern)?; self.cstore.update_extern_crate( cnum, @@ -1246,7 +1299,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { } pub fn maybe_process_path_extern(&mut self, name: Symbol) -> Option { - self.maybe_resolve_crate(name, CrateDepKind::Explicit, None).ok() + self.maybe_resolve_crate(name, CrateDepKind::Explicit, CrateOrigin::Extern).ok() } } From 83d70c029860e619f8cb91f15bfc34f7f2d7965f Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Wed, 29 Jan 2025 23:45:36 +0000 Subject: [PATCH 147/255] Improve debugging for metadata structures I had to do a lot of debug by printing; having these `Debug` traits in place made it easier. Additionally, add some more information to existing `info!` statements. --- compiler/rustc_metadata/src/creader.rs | 3 ++- compiler/rustc_metadata/src/locator.rs | 10 ++++++---- compiler/rustc_metadata/src/rmeta/decoder.rs | 4 ++++ 3 files changed, 12 insertions(+), 5 deletions(-) diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 9efe18af863a..582572586cf1 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -147,6 +147,7 @@ impl<'a> std::fmt::Debug for CrateDump<'a> { writeln!(fmt, " cnum: {cnum}")?; writeln!(fmt, " hash: {}", data.hash())?; writeln!(fmt, " reqd: {:?}", data.dep_kind())?; + writeln!(fmt, " priv: {:?}", data.is_private_dep())?; let CrateSource { dylib, rlib, rmeta } = data.source(); if let Some(dylib) = dylib { writeln!(fmt, " dylib: {}", dylib.0.display())?; @@ -770,7 +771,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { match result { (LoadResult::Previous(cnum), None) => { - info!("library for `{}` was loaded previously", name); + info!("library for `{}` was loaded previously, cnum {cnum}", name); // When `private_dep` is none, it indicates the directly dependent crate. If it is // not specified by `--extern` on command line parameters, it may be // `private-dependency` when `register_crate` is called for the first time. Then it must be updated to diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs index 2ddabeb49f70..3f3e58384cbf 100644 --- a/compiler/rustc_metadata/src/locator.rs +++ b/compiler/rustc_metadata/src/locator.rs @@ -260,7 +260,7 @@ pub(crate) struct CrateLocator<'a> { crate_rejections: CrateRejections, } -#[derive(Clone)] +#[derive(Clone, Debug)] pub(crate) struct CratePaths { pub(crate) name: Symbol, source: CrateSource, @@ -272,7 +272,7 @@ impl CratePaths { } } -#[derive(Copy, Clone, PartialEq)] +#[derive(Copy, Clone, Debug, PartialEq)] pub(crate) enum CrateFlavor { Rlib, Rmeta, @@ -893,13 +893,13 @@ fn get_flavor_from_path(path: &Path) -> CrateFlavor { // ------------------------------------------ Error reporting ------------------------------------- -#[derive(Clone)] +#[derive(Clone, Debug)] struct CrateMismatch { path: PathBuf, got: String, } -#[derive(Clone, Default)] +#[derive(Clone, Debug, Default)] struct CrateRejections { via_hash: Vec, via_triple: Vec, @@ -912,6 +912,7 @@ struct CrateRejections { /// Candidate rejection reasons collected during crate search. /// If no candidate is accepted, then these reasons are presented to the user, /// otherwise they are ignored. +#[derive(Debug)] pub(crate) struct CombinedLocatorError { crate_name: Symbol, dep_root: Option, @@ -921,6 +922,7 @@ pub(crate) struct CombinedLocatorError { crate_rejections: CrateRejections, } +#[derive(Debug)] pub(crate) enum CrateError { NonAsciiName(Symbol), ExternLocationNotExist(Symbol, PathBuf), diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index e8dcda875e67..0516179f62ca 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -1936,6 +1936,10 @@ impl CrateMetadata { self.root.needs_panic_runtime } + pub(crate) fn is_private_dep(&self) -> bool { + self.private_dep + } + pub(crate) fn is_panic_runtime(&self) -> bool { self.root.panic_runtime } From 849b0920b1704cae318e8e8709269d2b1c5d0f05 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 16 Feb 2025 21:19:44 +1100 Subject: [PATCH 148/255] Partly flatten the user-type loop in `TypeVerifier::visit_local_decl` --- compiler/rustc_borrowck/src/type_check/mod.rs | 63 ++++++++++--------- 1 file changed, 33 insertions(+), 30 deletions(-) diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 84759a0ae04a..1f3a15df80cf 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -456,38 +456,41 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> { fn visit_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>) { self.super_local_decl(local, local_decl); - if let Some(user_ty) = &local_decl.user_ty { - for (user_ty, span) in user_ty.projections_and_spans() { - let ty = if !local_decl.is_nonref_binding() { - // If we have a binding of the form `let ref x: T = ..` - // then remove the outermost reference so we can check the - // type annotation for the remaining type. - if let ty::Ref(_, rty, _) = local_decl.ty.kind() { - *rty - } else { - bug!("{:?} with ref binding has wrong type {}", local, local_decl.ty); - } + for (user_ty, span) in local_decl + .user_ty + .as_deref() + .into_iter() + .flat_map(UserTypeProjections::projections_and_spans) + { + let ty = if !local_decl.is_nonref_binding() { + // If we have a binding of the form `let ref x: T = ..` + // then remove the outermost reference so we can check the + // type annotation for the remaining type. + if let ty::Ref(_, rty, _) = local_decl.ty.kind() { + *rty } else { - local_decl.ty - }; - - if let Err(terr) = self.typeck.relate_type_and_user_type( - ty, - ty::Invariant, - user_ty, - Locations::All(*span), - ConstraintCategory::TypeAnnotation(AnnotationSource::Declaration), - ) { - span_mirbug!( - self, - local, - "bad user type on variable {:?}: {:?} != {:?} ({:?})", - local, - local_decl.ty, - local_decl.user_ty, - terr, - ); + bug!("{:?} with ref binding has wrong type {}", local, local_decl.ty); } + } else { + local_decl.ty + }; + + if let Err(terr) = self.typeck.relate_type_and_user_type( + ty, + ty::Invariant, + user_ty, + Locations::All(*span), + ConstraintCategory::TypeAnnotation(AnnotationSource::Declaration), + ) { + span_mirbug!( + self, + local, + "bad user type on variable {:?}: {:?} != {:?} ({:?})", + local, + local_decl.ty, + local_decl.user_ty, + terr, + ); } } } From bf3bb5fd37b5dcf54a723c8559bba6718630095b Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 16 Feb 2025 21:22:36 +1100 Subject: [PATCH 149/255] Flatten the check for ref/non-ref bindings --- compiler/rustc_borrowck/src/type_check/mod.rs | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 1f3a15df80cf..21b0a62fe430 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -462,17 +462,15 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> { .into_iter() .flat_map(UserTypeProjections::projections_and_spans) { - let ty = if !local_decl.is_nonref_binding() { + let ty = if local_decl.is_nonref_binding() { + local_decl.ty + } else if let &ty::Ref(_, rty, _) = local_decl.ty.kind() { // If we have a binding of the form `let ref x: T = ..` // then remove the outermost reference so we can check the // type annotation for the remaining type. - if let ty::Ref(_, rty, _) = local_decl.ty.kind() { - *rty - } else { - bug!("{:?} with ref binding has wrong type {}", local, local_decl.ty); - } + rty } else { - local_decl.ty + bug!("{:?} with ref binding has wrong type {}", local, local_decl.ty); }; if let Err(terr) = self.typeck.relate_type_and_user_type( From a64efc72d0811732bbbe9b6d8b678bdebd1848a2 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 16 Feb 2025 21:49:33 +1100 Subject: [PATCH 150/255] Avoid a useless clone of `UserTypeProjection` --- compiler/rustc_middle/src/mir/mod.rs | 4 ++-- compiler/rustc_mir_build/src/builder/matches/mod.rs | 7 ++----- 2 files changed, 4 insertions(+), 7 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index ff493fa65a6a..d74a917f33cc 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -1516,8 +1516,8 @@ impl<'tcx> UserTypeProjections { self.contents.iter().map(|&(ref user_type, _span)| user_type) } - pub fn push_projection(mut self, user_ty: &UserTypeProjection, span: Span) -> Self { - self.contents.push((user_ty.clone(), span)); + pub fn push_user_type(mut self, base_user_ty: UserTypeAnnotationIndex, span: Span) -> Self { + self.contents.push((UserTypeProjection { base: base_user_ty, projs: vec![] }, span)); self } diff --git a/compiler/rustc_mir_build/src/builder/matches/mod.rs b/compiler/rustc_mir_build/src/builder/matches/mod.rs index ed577f7adeb3..f551f0ceedaf 100644 --- a/compiler/rustc_mir_build/src/builder/matches/mod.rs +++ b/compiler/rustc_mir_build/src/builder/matches/mod.rs @@ -926,12 +926,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // Note that the variance doesn't apply here, as we are tracking the effect // of `user_ty` on any bindings contained with subpattern. - let projection = UserTypeProjection { - base: self.canonical_user_type_annotations.push(annotation.clone()), - projs: Vec::new(), - }; + let base_user_ty = self.canonical_user_type_annotations.push(annotation.clone()); let subpattern_user_ty = - pattern_user_ty.push_projection(&projection, annotation.span); + pattern_user_ty.push_user_type(base_user_ty, annotation.span); self.visit_primary_bindings(subpattern, subpattern_user_ty, f) } From 8bb574fdd301dbb6ff18bd2500ccf463ce8a19d4 Mon Sep 17 00:00:00 2001 From: Zalathar Date: Sun, 16 Feb 2025 21:10:04 +1100 Subject: [PATCH 151/255] Don't store a redundant span in user-type projections This span is already present in the corresponding `CanonicalUserTypeAnnotation`, and can be retrieved via the annotation's ID. --- compiler/rustc_borrowck/src/type_check/mod.rs | 11 +++++----- compiler/rustc_middle/src/mir/mod.rs | 21 ++++++------------- compiler/rustc_middle/src/mir/visit.rs | 2 +- .../src/builder/matches/mod.rs | 3 +-- 4 files changed, 13 insertions(+), 24 deletions(-) diff --git a/compiler/rustc_borrowck/src/type_check/mod.rs b/compiler/rustc_borrowck/src/type_check/mod.rs index 21b0a62fe430..bd0d98028ae8 100644 --- a/compiler/rustc_borrowck/src/type_check/mod.rs +++ b/compiler/rustc_borrowck/src/type_check/mod.rs @@ -456,12 +456,11 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> { fn visit_local_decl(&mut self, local: Local, local_decl: &LocalDecl<'tcx>) { self.super_local_decl(local, local_decl); - for (user_ty, span) in local_decl - .user_ty - .as_deref() - .into_iter() - .flat_map(UserTypeProjections::projections_and_spans) + for user_ty in + local_decl.user_ty.as_deref().into_iter().flat_map(UserTypeProjections::projections) { + let span = self.typeck.user_type_annotations[user_ty.base].span; + let ty = if local_decl.is_nonref_binding() { local_decl.ty } else if let &ty::Ref(_, rty, _) = local_decl.ty.kind() { @@ -477,7 +476,7 @@ impl<'a, 'b, 'tcx> Visitor<'tcx> for TypeVerifier<'a, 'b, 'tcx> { ty, ty::Invariant, user_ty, - Locations::All(*span), + Locations::All(span), ConstraintCategory::TypeAnnotation(AnnotationSource::Declaration), ) { span_mirbug!( diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index d74a917f33cc..71fed4b3e1e9 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -1494,7 +1494,7 @@ pub struct SourceScopeLocalData { /// &'static str`. #[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable, TypeFoldable, TypeVisitable)] pub struct UserTypeProjections { - pub contents: Vec<(UserTypeProjection, Span)>, + pub contents: Vec, } impl<'tcx> UserTypeProjections { @@ -1506,26 +1506,17 @@ impl<'tcx> UserTypeProjections { self.contents.is_empty() } - pub fn projections_and_spans( - &self, - ) -> impl Iterator + ExactSizeIterator { + pub fn projections(&self) -> impl Iterator + ExactSizeIterator { self.contents.iter() } - pub fn projections(&self) -> impl Iterator + ExactSizeIterator { - self.contents.iter().map(|&(ref user_type, _span)| user_type) - } - - pub fn push_user_type(mut self, base_user_ty: UserTypeAnnotationIndex, span: Span) -> Self { - self.contents.push((UserTypeProjection { base: base_user_ty, projs: vec![] }, span)); + pub fn push_user_type(mut self, base_user_type: UserTypeAnnotationIndex) -> Self { + self.contents.push(UserTypeProjection { base: base_user_type, projs: vec![] }); self } - fn map_projections( - mut self, - mut f: impl FnMut(UserTypeProjection) -> UserTypeProjection, - ) -> Self { - self.contents = self.contents.into_iter().map(|(proj, span)| (f(proj), span)).collect(); + fn map_projections(mut self, f: impl FnMut(UserTypeProjection) -> UserTypeProjection) -> Self { + self.contents = self.contents.into_iter().map(f).collect(); self } diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 193806f238b1..98e8f269c57b 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -857,7 +857,7 @@ macro_rules! make_mir_visitor { source_info: *source_info, }); if let Some(user_ty) = user_ty { - for (user_ty, _) in & $($mutability)? user_ty.contents { + for user_ty in & $($mutability)? user_ty.contents { self.visit_user_type_projection(user_ty); } } diff --git a/compiler/rustc_mir_build/src/builder/matches/mod.rs b/compiler/rustc_mir_build/src/builder/matches/mod.rs index f551f0ceedaf..6334612eced3 100644 --- a/compiler/rustc_mir_build/src/builder/matches/mod.rs +++ b/compiler/rustc_mir_build/src/builder/matches/mod.rs @@ -927,8 +927,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // of `user_ty` on any bindings contained with subpattern. let base_user_ty = self.canonical_user_type_annotations.push(annotation.clone()); - let subpattern_user_ty = - pattern_user_ty.push_user_type(base_user_ty, annotation.span); + let subpattern_user_ty = pattern_user_ty.push_user_type(base_user_ty); self.visit_primary_bindings(subpattern, subpattern_user_ty, f) } From 97bc99a18f8175bf251a902fe5956e4d42fecebb Mon Sep 17 00:00:00 2001 From: okaneco <47607823+okaneco@users.noreply.github.com> Date: Wed, 12 Feb 2025 02:14:33 -0500 Subject: [PATCH 152/255] Implement feature `isolate_most_least_significant_one` for integer types Implement accepted ACP for functions that isolate the most significant set bit and least significant set bit on unsigned, signed, and NonZero integers. Add function `isolate_most_significant_one` Add function `isolate_least_significant_one` Add tests --- library/core/src/num/int_macros.rs | 46 ++++++++++ library/core/src/num/nonzero.rs | 64 +++++++++++++ library/core/src/num/uint_macros.rs | 46 ++++++++++ library/coretests/tests/lib.rs | 1 + library/coretests/tests/nonzero.rs | 100 +++++++++++++++++++++ library/coretests/tests/num/int_macros.rs | 34 +++++++ library/coretests/tests/num/uint_macros.rs | 34 +++++++ 7 files changed, 325 insertions(+) diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs index 96a290ad5a09..a26832d8231e 100644 --- a/library/core/src/num/int_macros.rs +++ b/library/core/src/num/int_macros.rs @@ -183,6 +183,52 @@ macro_rules! int_impl { (self as $UnsignedT).trailing_ones() } + /// Returns `self` with only the most significant bit set, or `0` if + /// the input is `0`. + /// + /// # Examples + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + #[doc = concat!("let n: ", stringify!($SelfT), " = 0b_01100100;")] + /// + /// assert_eq!(n.isolate_most_significant_one(), 0b_01000000); + #[doc = concat!("assert_eq!(0_", stringify!($SelfT), ".isolate_most_significant_one(), 0);")] + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_most_significant_one(self) -> Self { + self & (((1 as $SelfT) << (<$SelfT>::BITS - 1)).wrapping_shr(self.leading_zeros())) + } + + /// Returns `self` with only the least significant bit set, or `0` if + /// the input is `0`. + /// + /// # Examples + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + #[doc = concat!("let n: ", stringify!($SelfT), " = 0b_01100100;")] + /// + /// assert_eq!(n.isolate_least_significant_one(), 0b_00000100); + #[doc = concat!("assert_eq!(0_", stringify!($SelfT), ".isolate_least_significant_one(), 0);")] + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_least_significant_one(self) -> Self { + self & self.wrapping_neg() + } + /// Returns the bit pattern of `self` reinterpreted as an unsigned integer of the same size. /// /// This produces the same result as an `as` cast, but ensures that the bit-width remains diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index a115acf42b12..b14928514f51 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -605,6 +605,70 @@ macro_rules! nonzero_integer { } } + /// Returns `self` with only the most significant bit set. + /// + /// # Example + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + /// # use core::num::NonZero; + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("let a = NonZero::<", stringify!($Int), ">::new(0b_01100100)?;")] + #[doc = concat!("let b = NonZero::<", stringify!($Int), ">::new(0b_01000000)?;")] + /// + /// assert_eq!(a.isolate_most_significant_one(), b); + /// # Some(()) + /// # } + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_most_significant_one(self) -> Self { + let n = self.get() & (((1 as $Int) << (<$Int>::BITS - 1)).wrapping_shr(self.leading_zeros())); + + // SAFETY: + // `self` is non-zero, so masking to preserve only the most + // significant set bit will result in a non-zero `n`. + unsafe { NonZero::new_unchecked(n) } + } + + /// Returns `self` with only the least significant bit set. + /// + /// # Example + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + /// # use core::num::NonZero; + /// # fn main() { test().unwrap(); } + /// # fn test() -> Option<()> { + #[doc = concat!("let a = NonZero::<", stringify!($Int), ">::new(0b_01100100)?;")] + #[doc = concat!("let b = NonZero::<", stringify!($Int), ">::new(0b_00000100)?;")] + /// + /// assert_eq!(a.isolate_least_significant_one(), b); + /// # Some(()) + /// # } + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_least_significant_one(self) -> Self { + let n = self.get(); + let n = n & n.wrapping_neg(); + + // SAFETY: `self` is non-zero, so `self` with only its least + // significant set bit will remain non-zero. + unsafe { NonZero::new_unchecked(n) } + } + /// Returns the number of ones in the binary representation of `self`. /// /// # Examples diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs index 29f6791ee6ad..85d80c341f50 100644 --- a/library/core/src/num/uint_macros.rs +++ b/library/core/src/num/uint_macros.rs @@ -213,6 +213,52 @@ macro_rules! uint_impl { (!self).trailing_zeros() } + /// Returns `self` with only the most significant bit set, or `0` if + /// the input is `0`. + /// + /// # Examples + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + #[doc = concat!("let n: ", stringify!($SelfT), " = 0b_01100100;")] + /// + /// assert_eq!(n.isolate_most_significant_one(), 0b_01000000); + #[doc = concat!("assert_eq!(0_", stringify!($SelfT), ".isolate_most_significant_one(), 0);")] + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_most_significant_one(self) -> Self { + self & (((1 as $SelfT) << (<$SelfT>::BITS - 1)).wrapping_shr(self.leading_zeros())) + } + + /// Returns `self` with only the least significant bit set, or `0` if + /// the input is `0`. + /// + /// # Examples + /// + /// Basic usage: + /// + /// ``` + /// #![feature(isolate_most_least_significant_one)] + /// + #[doc = concat!("let n: ", stringify!($SelfT), " = 0b_01100100;")] + /// + /// assert_eq!(n.isolate_least_significant_one(), 0b_00000100); + #[doc = concat!("assert_eq!(0_", stringify!($SelfT), ".isolate_least_significant_one(), 0);")] + /// ``` + #[unstable(feature = "isolate_most_least_significant_one", issue = "136909")] + #[must_use = "this returns the result of the operation, \ + without modifying the original"] + #[inline(always)] + pub const fn isolate_least_significant_one(self) -> Self { + self & self.wrapping_neg() + } + /// Returns the bit pattern of `self` reinterpreted as a signed integer of the same size. /// /// This produces the same result as an `as` cast, but ensures that the bit-width remains diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index f1bbed3de301..a3fd33f9b1a8 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -43,6 +43,7 @@ #![feature(ip)] #![feature(ip_from)] #![feature(is_ascii_octdigit)] +#![feature(isolate_most_least_significant_one)] #![feature(iter_advance_by)] #![feature(iter_array_chunks)] #![feature(iter_chain)] diff --git a/library/coretests/tests/nonzero.rs b/library/coretests/tests/nonzero.rs index 43c279053d82..bdc5701d9fd2 100644 --- a/library/coretests/tests/nonzero.rs +++ b/library/coretests/tests/nonzero.rs @@ -321,6 +321,106 @@ fn nonzero_trailing_zeros() { assert_eq!(TRAILING_ZEROS, 2); } +#[test] +fn test_nonzero_isolate_most_significant_one() { + // Signed most significant one + macro_rules! nonzero_int_impl { + ($($T:ty),+) => { + $( + { + const BITS: $T = -1; + const MOST_SIG_ONE: $T = 1 << (<$T>::BITS - 1); + + // Right shift the most significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + NonZero::<$T>::new(BITS >> i).unwrap().isolate_most_significant_one(), + NonZero::<$T>::new(MOST_SIG_ONE >> i).unwrap().isolate_most_significant_one() + ); + i += 1; + } + } + )+ + }; + } + + // Unsigned most significant one + macro_rules! nonzero_uint_impl { + ($($T:ty),+) => { + $( + { + const BITS: $T = <$T>::MAX; + const MOST_SIG_ONE: $T = 1 << (<$T>::BITS - 1); + + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + NonZero::<$T>::new(BITS >> i).unwrap().isolate_most_significant_one(), + NonZero::<$T>::new(MOST_SIG_ONE >> i).unwrap().isolate_most_significant_one(), + ); + i += 1; + } + } + )+ + }; + } + + nonzero_int_impl!(i8, i16, i32, i64, i128, isize); + nonzero_uint_impl!(u8, u16, u32, u64, u128, usize); +} + +#[test] +fn test_nonzero_isolate_least_significant_one() { + // Signed least significant one + macro_rules! nonzero_int_impl { + ($($T:ty),+) => { + $( + { + const BITS: $T = -1; + const LEAST_SIG_ONE: $T = 1; + + // Left shift the least significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + NonZero::<$T>::new(BITS << i).unwrap().isolate_least_significant_one(), + NonZero::<$T>::new(LEAST_SIG_ONE << i).unwrap().isolate_least_significant_one() + ); + i += 1; + } + } + )+ + }; + } + + // Unsigned least significant one + macro_rules! nonzero_uint_impl { + ($($T:ty),+) => { + $( + { + const BITS: $T = <$T>::MAX; + const LEAST_SIG_ONE: $T = 1; + + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + NonZero::<$T>::new(BITS << i).unwrap().isolate_least_significant_one(), + NonZero::<$T>::new(LEAST_SIG_ONE << i).unwrap().isolate_least_significant_one(), + ); + i += 1; + } + } + )+ + }; + } + + nonzero_int_impl!(i8, i16, i32, i64, i128, isize); + nonzero_uint_impl!(u8, u16, u32, u64, u128, usize); +} + #[test] fn test_nonzero_uint_div() { let nz = NonZero::new(1).unwrap(); diff --git a/library/coretests/tests/num/int_macros.rs b/library/coretests/tests/num/int_macros.rs index f13b836378b9..392704e7509a 100644 --- a/library/coretests/tests/num/int_macros.rs +++ b/library/coretests/tests/num/int_macros.rs @@ -192,6 +192,40 @@ macro_rules! int_module { } } + #[test] + fn test_isolate_most_significant_one() { + const BITS: $T = -1; + const MOST_SIG_ONE: $T = 1 << (<$T>::BITS - 1); + + // Right shift the most significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + (BITS >> i).isolate_most_significant_one(), + (MOST_SIG_ONE >> i).isolate_most_significant_one() + ); + i += 1; + } + } + + #[test] + fn test_isolate_least_significant_one() { + const BITS: $T = -1; + const LEAST_SIG_ONE: $T = 1; + + // Left shift the least significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + (BITS << i).isolate_least_significant_one(), + (LEAST_SIG_ONE << i).isolate_least_significant_one() + ); + i += 1; + } + } + #[test] fn test_from_str() { fn from_str(t: &str) -> Option { diff --git a/library/coretests/tests/num/uint_macros.rs b/library/coretests/tests/num/uint_macros.rs index 99a2d4cd462b..c085ba5a249a 100644 --- a/library/coretests/tests/num/uint_macros.rs +++ b/library/coretests/tests/num/uint_macros.rs @@ -141,6 +141,40 @@ macro_rules! uint_module { } } + #[test] + fn test_isolate_most_significant_one() { + const BITS: $T = <$T>::MAX; + const MOST_SIG_ONE: $T = 1 << (<$T>::BITS - 1); + + // Right shift the most significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + (BITS >> i).isolate_most_significant_one(), + (MOST_SIG_ONE >> i).isolate_most_significant_one(), + ); + i += 1; + } + } + + #[test] + fn test_isolate_least_significant_one() { + const BITS: $T = <$T>::MAX; + const LEAST_SIG_ONE: $T = 1; + + // Left shift the least significant one through each + // bit position, starting with all bits set + let mut i = 0; + while i < <$T>::BITS { + assert_eq!( + (BITS << i).isolate_least_significant_one(), + (LEAST_SIG_ONE << i).isolate_least_significant_one(), + ); + i += 1; + } + } + fn from_str(t: &str) -> Option { core::str::FromStr::from_str(t).ok() } From 81ab20f34e5447108c8103c10cd3f106f338e7e1 Mon Sep 17 00:00:00 2001 From: Jordan McQueen Date: Thu, 20 Feb 2025 10:37:28 +0000 Subject: [PATCH 153/255] Update references to cc_detect.rs The locations of these files have since been changed. This is a simple change to update the references to these files. --- config.example.toml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/config.example.toml b/config.example.toml index fd27b24e4619..a17d3ec9f884 100644 --- a/config.example.toml +++ b/config.example.toml @@ -793,12 +793,12 @@ # C compiler to be used to compile C code. Note that the # default value is platform specific, and if not specified it may also depend on # what platform is crossing to what platform. -# See `src/bootstrap/cc_detect.rs` for details. +# See `src/bootstrap/src/utils/cc_detect.rs` for details. #cc = "cc" (path) # C++ compiler to be used to compile C++ code (e.g. LLVM and our LLVM shims). # This is only used for host targets. -# See `src/bootstrap/cc_detect.rs` for details. +# See `src/bootstrap/src/utils/cc_detect.rs` for details. #cxx = "c++" (path) # Archiver to be used to assemble static libraries compiled from C/C++ code. From 79b2360d985d325741e066e7b6070ed465b785df Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Tue, 18 Feb 2025 16:51:47 +0100 Subject: [PATCH 154/255] mono-time abi_check: unify error paths for call and definition sites also move the existing tests to a more sensible location --- compiler/rustc_monomorphize/messages.ftl | 34 ++++--- compiler/rustc_monomorphize/src/errors.rs | 30 ++---- .../src/mono_checks/abi_check.rs | 94 +++++++++---------- .../{ => abi}/simd-abi-checks-empty-list.rs | 0 .../simd-abi-checks-empty-list.stderr | 0 tests/ui/{ => abi}/simd-abi-checks-s390x.rs | 0 .../simd-abi-checks-s390x.z10.stderr | 0 ...simd-abi-checks-s390x.z13_no_vector.stderr | 0 ...imd-abi-checks-s390x.z13_soft_float.stderr | 0 tests/ui/{ => abi}/simd-abi-checks.rs | 0 tests/ui/{ => abi}/simd-abi-checks.stderr | 0 tests/ui/abi/sse-abi-checks.rs | 23 +++++ tests/ui/abi/sse-abi-checks.stderr | 25 +++++ tests/ui/sse-simd-abi-checks.rs | 2 +- 14 files changed, 122 insertions(+), 86 deletions(-) rename tests/ui/{ => abi}/simd-abi-checks-empty-list.rs (100%) rename tests/ui/{ => abi}/simd-abi-checks-empty-list.stderr (100%) rename tests/ui/{ => abi}/simd-abi-checks-s390x.rs (100%) rename tests/ui/{ => abi}/simd-abi-checks-s390x.z10.stderr (100%) rename tests/ui/{ => abi}/simd-abi-checks-s390x.z13_no_vector.stderr (100%) rename tests/ui/{ => abi}/simd-abi-checks-s390x.z13_soft_float.stderr (100%) rename tests/ui/{ => abi}/simd-abi-checks.rs (100%) rename tests/ui/{ => abi}/simd-abi-checks.stderr (100%) create mode 100644 tests/ui/abi/sse-abi-checks.rs create mode 100644 tests/ui/abi/sse-abi-checks.stderr diff --git a/compiler/rustc_monomorphize/messages.ftl b/compiler/rustc_monomorphize/messages.ftl index 463c42b69b1a..a83c18cda0e2 100644 --- a/compiler/rustc_monomorphize/messages.ftl +++ b/compiler/rustc_monomorphize/messages.ftl @@ -1,18 +1,26 @@ -monomorphize_abi_error_disabled_vector_type_call = - this function call uses SIMD vector type `{$ty}` which (with the chosen ABI) requires the `{$required_feature}` target feature, which is not enabled in the caller - .label = function called here - .help = consider enabling it globally (`-C target-feature=+{$required_feature}`) or locally (`#[target_feature(enable="{$required_feature}")]`) -monomorphize_abi_error_disabled_vector_type_def = - this function definition uses SIMD vector type `{$ty}` which (with the chosen ABI) requires the `{$required_feature}` target feature, which is not enabled - .label = function defined here +monomorphize_abi_error_disabled_vector_type = + this function {$is_call -> + [true] call + *[false] definition + } uses SIMD vector type `{$ty}` which (with the chosen ABI) requires the `{$required_feature}` target feature, which is not enabled{$is_call -> + [true] {" "}in the caller + *[false] {""} + } + .label = function {$is_call -> + [true] called + *[false] defined + } here .help = consider enabling it globally (`-C target-feature=+{$required_feature}`) or locally (`#[target_feature(enable="{$required_feature}")]`) -monomorphize_abi_error_unsupported_vector_type_call = - this function call uses SIMD vector type `{$ty}` which is not currently supported with the chosen ABI - .label = function called here -monomorphize_abi_error_unsupported_vector_type_def = - this function definition uses SIMD vector type `{$ty}` which is not currently supported with the chosen ABI - .label = function defined here +monomorphize_abi_error_unsupported_vector_type = + this function {$is_call -> + [true] call + *[false] definition + } uses SIMD vector type `{$ty}` which is not currently supported with the chosen ABI + .label = function {$is_call -> + [true] called + *[false] defined + } here monomorphize_couldnt_dump_mono_stats = unexpected error occurred while dumping monomorphization stats: {$error} diff --git a/compiler/rustc_monomorphize/src/errors.rs b/compiler/rustc_monomorphize/src/errors.rs index 75687a80b82a..1cfcd52b6662 100644 --- a/compiler/rustc_monomorphize/src/errors.rs +++ b/compiler/rustc_monomorphize/src/errors.rs @@ -70,37 +70,23 @@ pub(crate) struct UnknownCguCollectionMode<'a> { } #[derive(LintDiagnostic)] -#[diag(monomorphize_abi_error_disabled_vector_type_def)] +#[diag(monomorphize_abi_error_disabled_vector_type)] #[help] -pub(crate) struct AbiErrorDisabledVectorTypeDef<'a> { +pub(crate) struct AbiErrorDisabledVectorType<'a> { #[label] pub span: Span, pub required_feature: &'a str, pub ty: Ty<'a>, + /// Whether this is a problem at a call site or at a declaration. + pub is_call: bool, } #[derive(LintDiagnostic)] -#[diag(monomorphize_abi_error_disabled_vector_type_call)] -#[help] -pub(crate) struct AbiErrorDisabledVectorTypeCall<'a> { - #[label] - pub span: Span, - pub required_feature: &'a str, - pub ty: Ty<'a>, -} - -#[derive(LintDiagnostic)] -#[diag(monomorphize_abi_error_unsupported_vector_type_def)] -pub(crate) struct AbiErrorUnsupportedVectorTypeDef<'a> { - #[label] - pub span: Span, - pub ty: Ty<'a>, -} - -#[derive(LintDiagnostic)] -#[diag(monomorphize_abi_error_unsupported_vector_type_call)] -pub(crate) struct AbiErrorUnsupportedVectorTypeCall<'a> { +#[diag(monomorphize_abi_error_unsupported_vector_type)] +pub(crate) struct AbiErrorUnsupportedVectorType<'a> { #[label] pub span: Span, pub ty: Ty<'a>, + /// Whether this is a problem at a call site or at a declaration. + pub is_call: bool, } diff --git a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs index 8e93bdc61d04..b5a7a8103795 100644 --- a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs +++ b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs @@ -6,13 +6,10 @@ use rustc_middle::mir::{self, traversal}; use rustc_middle::ty::{self, Instance, InstanceKind, Ty, TyCtxt}; use rustc_session::lint::builtin::ABI_UNSUPPORTED_VECTOR_TYPES; use rustc_span::def_id::DefId; -use rustc_span::{DUMMY_SP, Span, Symbol}; -use rustc_target::callconv::{FnAbi, PassMode}; +use rustc_span::{DUMMY_SP, Span, Symbol, sym}; +use rustc_target::callconv::{Conv, FnAbi, PassMode}; -use crate::errors::{ - AbiErrorDisabledVectorTypeCall, AbiErrorDisabledVectorTypeDef, - AbiErrorUnsupportedVectorTypeCall, AbiErrorUnsupportedVectorTypeDef, -}; +use crate::errors; fn uses_vector_registers(mode: &PassMode, repr: &BackendRepr) -> bool { match mode { @@ -27,16 +24,21 @@ fn uses_vector_registers(mode: &PassMode, repr: &BackendRepr) -> bool { /// Checks whether a certain function ABI is compatible with the target features currently enabled /// for a certain function. -/// If not, `emit_err` is called, with `Some(feature)` if a certain feature should be enabled and -/// with `None` if no feature is known that would make the ABI compatible. +/// `is_call` indicates whether this is a call-site check or a definition-site check; +/// this is only relevant for the wording in the emitted error. fn do_check_abi<'tcx>( tcx: TyCtxt<'tcx>, abi: &FnAbi<'tcx, Ty<'tcx>>, target_feature_def: DefId, - mut emit_err: impl FnMut(Ty<'tcx>, Option<&'static str>), + is_call: bool, + span: impl Fn() -> Span, ) { let feature_def = tcx.sess.target.features_for_correct_vector_abi(); let codegen_attrs = tcx.codegen_fn_attrs(target_feature_def); + let have_feature = |feat: Symbol| { + tcx.sess.unstable_target_features.contains(&feat) + || codegen_attrs.target_features.iter().any(|x| x.name == feat) + }; for arg_abi in abi.args.iter().chain(std::iter::once(&abi.ret)) { let size = arg_abi.layout.size; if uses_vector_registers(&arg_abi.mode, &arg_abi.layout.backend_repr) { @@ -44,15 +46,34 @@ fn do_check_abi<'tcx>( let feature = match feature_def.iter().find(|(bits, _)| size.bits() <= *bits) { Some((_, feature)) => feature, None => { - emit_err(arg_abi.layout.ty, None); + let span = span(); + tcx.emit_node_span_lint( + ABI_UNSUPPORTED_VECTOR_TYPES, + CRATE_HIR_ID, + span, + errors::AbiErrorUnsupportedVectorType { + span, + ty: arg_abi.layout.ty, + is_call, + }, + ); continue; } }; - let feature_sym = Symbol::intern(feature); - if !tcx.sess.unstable_target_features.contains(&feature_sym) - && !codegen_attrs.target_features.iter().any(|x| x.name == feature_sym) - { - emit_err(arg_abi.layout.ty, Some(&feature)); + if !have_feature(Symbol::intern(feature)) { + // Emit error. + let span = span(); + tcx.emit_node_span_lint( + ABI_UNSUPPORTED_VECTOR_TYPES, + CRATE_HIR_ID, + span, + errors::AbiErrorDisabledVectorType { + span, + required_feature: feature, + ty: arg_abi.layout.ty, + is_call, + }, + ); } } } @@ -68,24 +89,13 @@ fn check_instance_abi<'tcx>(tcx: TyCtxt<'tcx>, instance: Instance<'tcx>) { // function. return; }; - do_check_abi(tcx, abi, instance.def_id(), |ty, required_feature| { - let span = tcx.def_span(instance.def_id()); - if let Some(required_feature) = required_feature { - tcx.emit_node_span_lint( - ABI_UNSUPPORTED_VECTOR_TYPES, - CRATE_HIR_ID, - span, - AbiErrorDisabledVectorTypeDef { span, required_feature, ty }, - ); - } else { - tcx.emit_node_span_lint( - ABI_UNSUPPORTED_VECTOR_TYPES, - CRATE_HIR_ID, - span, - AbiErrorUnsupportedVectorTypeDef { span, ty }, - ); - } - }) + do_check_abi( + tcx, + abi, + instance.def_id(), + /*is_call*/ false, + || tcx.def_span(instance.def_id()), + ) } /// Checks that a call expression does not try to pass a vector-passed argument which requires a @@ -122,23 +132,7 @@ fn check_call_site_abi<'tcx>( // ABI failed to compute; this will not get through codegen. return; }; - do_check_abi(tcx, callee_abi, caller.def_id(), |ty, required_feature| { - if let Some(required_feature) = required_feature { - tcx.emit_node_span_lint( - ABI_UNSUPPORTED_VECTOR_TYPES, - CRATE_HIR_ID, - span, - AbiErrorDisabledVectorTypeCall { span, required_feature, ty }, - ); - } else { - tcx.emit_node_span_lint( - ABI_UNSUPPORTED_VECTOR_TYPES, - CRATE_HIR_ID, - span, - AbiErrorUnsupportedVectorTypeCall { span, ty }, - ); - } - }); + do_check_abi(tcx, callee_abi, caller.def_id(), /*is_call*/ true, || span); } fn check_callees_abi<'tcx>(tcx: TyCtxt<'tcx>, instance: Instance<'tcx>, body: &mir::Body<'tcx>) { diff --git a/tests/ui/simd-abi-checks-empty-list.rs b/tests/ui/abi/simd-abi-checks-empty-list.rs similarity index 100% rename from tests/ui/simd-abi-checks-empty-list.rs rename to tests/ui/abi/simd-abi-checks-empty-list.rs diff --git a/tests/ui/simd-abi-checks-empty-list.stderr b/tests/ui/abi/simd-abi-checks-empty-list.stderr similarity index 100% rename from tests/ui/simd-abi-checks-empty-list.stderr rename to tests/ui/abi/simd-abi-checks-empty-list.stderr diff --git a/tests/ui/simd-abi-checks-s390x.rs b/tests/ui/abi/simd-abi-checks-s390x.rs similarity index 100% rename from tests/ui/simd-abi-checks-s390x.rs rename to tests/ui/abi/simd-abi-checks-s390x.rs diff --git a/tests/ui/simd-abi-checks-s390x.z10.stderr b/tests/ui/abi/simd-abi-checks-s390x.z10.stderr similarity index 100% rename from tests/ui/simd-abi-checks-s390x.z10.stderr rename to tests/ui/abi/simd-abi-checks-s390x.z10.stderr diff --git a/tests/ui/simd-abi-checks-s390x.z13_no_vector.stderr b/tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr similarity index 100% rename from tests/ui/simd-abi-checks-s390x.z13_no_vector.stderr rename to tests/ui/abi/simd-abi-checks-s390x.z13_no_vector.stderr diff --git a/tests/ui/simd-abi-checks-s390x.z13_soft_float.stderr b/tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr similarity index 100% rename from tests/ui/simd-abi-checks-s390x.z13_soft_float.stderr rename to tests/ui/abi/simd-abi-checks-s390x.z13_soft_float.stderr diff --git a/tests/ui/simd-abi-checks.rs b/tests/ui/abi/simd-abi-checks.rs similarity index 100% rename from tests/ui/simd-abi-checks.rs rename to tests/ui/abi/simd-abi-checks.rs diff --git a/tests/ui/simd-abi-checks.stderr b/tests/ui/abi/simd-abi-checks.stderr similarity index 100% rename from tests/ui/simd-abi-checks.stderr rename to tests/ui/abi/simd-abi-checks.stderr diff --git a/tests/ui/abi/sse-abi-checks.rs b/tests/ui/abi/sse-abi-checks.rs new file mode 100644 index 000000000000..cb708bea3cae --- /dev/null +++ b/tests/ui/abi/sse-abi-checks.rs @@ -0,0 +1,23 @@ +//! Ensure we trigger abi_unsupported_vector_types for target features that are usually enabled +//! on a target via the base CPU, but disabled in this file via a `-C` flag. +//@ compile-flags: --crate-type=rlib --target=i586-unknown-linux-gnu +//@ compile-flags: -Ctarget-cpu=pentium4 -C target-feature=-sse,-sse2 +//@ add-core-stubs +//@ build-pass +//@ ignore-pass (test emits codegen-time warnings) +//@ needs-llvm-components: x86 +#![feature(no_core, repr_simd)] +#![no_core] +#![allow(improper_ctypes_definitions)] + +extern crate minicore; +use minicore::*; + +#[repr(simd)] +pub struct SseVector([i64; 2]); + +#[no_mangle] +pub unsafe extern "C" fn f(_: SseVector) { + //~^ this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled + //~| WARNING this was previously accepted by the compiler +} diff --git a/tests/ui/abi/sse-abi-checks.stderr b/tests/ui/abi/sse-abi-checks.stderr new file mode 100644 index 000000000000..95486f480d25 --- /dev/null +++ b/tests/ui/abi/sse-abi-checks.stderr @@ -0,0 +1,25 @@ +warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled + --> $DIR/sse-simd-abi-checks.rs:20:1 + | +LL | pub unsafe extern "C" fn f(_: SseVector) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #116558 + = help: consider enabling it globally (`-C target-feature=+sse`) or locally (`#[target_feature(enable="sse")]`) + = note: `#[warn(abi_unsupported_vector_types)]` on by default + +warning: 1 warning emitted + +Future incompatibility report: Future breakage diagnostic: +warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled + --> $DIR/sse-simd-abi-checks.rs:20:1 + | +LL | pub unsafe extern "C" fn f(_: SseVector) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here + | + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #116558 + = help: consider enabling it globally (`-C target-feature=+sse`) or locally (`#[target_feature(enable="sse")]`) + = note: `#[warn(abi_unsupported_vector_types)]` on by default + diff --git a/tests/ui/sse-simd-abi-checks.rs b/tests/ui/sse-simd-abi-checks.rs index 396e9bf13188..cb708bea3cae 100644 --- a/tests/ui/sse-simd-abi-checks.rs +++ b/tests/ui/sse-simd-abi-checks.rs @@ -6,7 +6,7 @@ //@ build-pass //@ ignore-pass (test emits codegen-time warnings) //@ needs-llvm-components: x86 -#![feature(no_core, lang_items, repr_simd)] +#![feature(no_core, repr_simd)] #![no_core] #![allow(improper_ctypes_definitions)] From ea7180813b4dface2bc02a9095ce1ebb8c64d4de Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Fri, 14 Feb 2025 17:27:49 +0000 Subject: [PATCH 155/255] Create safe helper for LLVMSetDLLStorageClass --- compiler/rustc_codegen_llvm/src/callee.rs | 6 ++---- compiler/rustc_codegen_llvm/src/consts.rs | 8 ++------ compiler/rustc_codegen_llvm/src/llvm/mod.rs | 6 ++++++ 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/callee.rs b/compiler/rustc_codegen_llvm/src/callee.rs index aa9a0f34f55e..90075e1c1055 100644 --- a/compiler/rustc_codegen_llvm/src/callee.rs +++ b/compiler/rustc_codegen_llvm/src/callee.rs @@ -66,9 +66,7 @@ pub(crate) fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'t // LLVM will prefix the name with `__imp_`. Ideally, we'd like the // existing logic below to set the Storage Class, but it has an // exemption for MinGW for backwards compatibility. - unsafe { - llvm::LLVMSetDLLStorageClass(llfn, llvm::DLLStorageClass::DllImport); - } + llvm::set_dllimport_storage_class(llfn); llfn } else { cx.declare_fn(sym, fn_abi, Some(instance)) @@ -150,7 +148,7 @@ pub(crate) fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'t && library.kind.is_dllimport() && !matches!(tcx.sess.target.env.as_ref(), "gnu" | "uclibc") { - llvm::LLVMSetDLLStorageClass(llfn, llvm::DLLStorageClass::DllImport); + llvm::set_dllimport_storage_class(llfn); } if cx.should_assume_dso_local(llfn, true) { diff --git a/compiler/rustc_codegen_llvm/src/consts.rs b/compiler/rustc_codegen_llvm/src/consts.rs index 4a5491ec7a18..5ab437d27c20 100644 --- a/compiler/rustc_codegen_llvm/src/consts.rs +++ b/compiler/rustc_codegen_llvm/src/consts.rs @@ -375,9 +375,7 @@ impl<'ll> CodegenCx<'ll, '_> { // is actually present in the current crate. We can find out via the // is_codegened_item query. if !self.tcx.is_codegened_item(def_id) { - unsafe { - llvm::LLVMSetDLLStorageClass(g, llvm::DLLStorageClass::DllImport); - } + llvm::set_dllimport_storage_class(g); } } } @@ -387,9 +385,7 @@ impl<'ll> CodegenCx<'ll, '_> { && library.kind.is_dllimport() { // For foreign (native) libs we know the exact storage type to use. - unsafe { - llvm::LLVMSetDLLStorageClass(g, llvm::DLLStorageClass::DllImport); - } + llvm::set_dllimport_storage_class(g); } self.instances.borrow_mut().insert(instance, g); diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs index efc9cf2ef691..7f57e6406379 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs @@ -403,3 +403,9 @@ pub(crate) fn add_module_flag_str( ); } } + +pub(crate) fn set_dllimport_storage_class<'ll>(v: &'ll Value) { + unsafe { + LLVMSetDLLStorageClass(v, DLLStorageClass::DllImport); + } +} From ce7f58bd91548fd8674aaceb670f827de26d4216 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Fri, 14 Feb 2025 17:27:49 +0000 Subject: [PATCH 156/255] Merge two operations that were always performed together --- compiler/rustc_codegen_llvm/src/back/lto.rs | 2 +- compiler/rustc_codegen_llvm/src/callee.rs | 104 +++++++++---------- compiler/rustc_codegen_llvm/src/consts.rs | 11 +- compiler/rustc_codegen_llvm/src/llvm/mod.rs | 6 ++ compiler/rustc_codegen_llvm/src/mono_item.rs | 25 +++-- 5 files changed, 71 insertions(+), 77 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index 7262fce49119..3e25b94961b0 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -362,8 +362,8 @@ fn fat_lto( ptr as *const *const libc::c_char, symbols_below_threshold.len() as libc::size_t, ); - save_temp_bitcode(cgcx, &module, "lto.after-restriction"); } + save_temp_bitcode(cgcx, &module, "lto.after-restriction"); } Ok(LtoModuleCodegen::Fat(module)) diff --git a/compiler/rustc_codegen_llvm/src/callee.rs b/compiler/rustc_codegen_llvm/src/callee.rs index 90075e1c1055..ea9ab5c02bd6 100644 --- a/compiler/rustc_codegen_llvm/src/callee.rs +++ b/compiler/rustc_codegen_llvm/src/callee.rs @@ -97,65 +97,61 @@ pub(crate) fn get_fn<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, instance: Instance<'t // has been applied to the definition (wherever that definition may be). llvm::set_linkage(llfn, llvm::Linkage::ExternalLinkage); - unsafe { - let is_generic = instance.args.non_erasable_generics().next().is_some(); + let is_generic = instance.args.non_erasable_generics().next().is_some(); - let is_hidden = if is_generic { - // This is a monomorphization of a generic function. - if !(cx.tcx.sess.opts.share_generics() - || tcx.codegen_fn_attrs(instance_def_id).inline - == rustc_attr_parsing::InlineAttr::Never) - { - // When not sharing generics, all instances are in the same - // crate and have hidden visibility. - true - } else { - if let Some(instance_def_id) = instance_def_id.as_local() { - // This is a monomorphization of a generic function - // defined in the current crate. It is hidden if: - // - the definition is unreachable for downstream - // crates, or - // - the current crate does not re-export generics - // (because the crate is a C library or executable) - cx.tcx.is_unreachable_local_definition(instance_def_id) - || !cx.tcx.local_crate_exports_generics() - } else { - // This is a monomorphization of a generic function - // defined in an upstream crate. It is hidden if: - // - it is instantiated in this crate, and - // - the current crate does not re-export generics - instance.upstream_monomorphization(tcx).is_none() - && !cx.tcx.local_crate_exports_generics() - } - } - } else { - // This is a non-generic function. It is hidden if: - // - it is instantiated in the local crate, and - // - it is defined an upstream crate (non-local), or - // - it is not reachable - cx.tcx.is_codegened_item(instance_def_id) - && (!instance_def_id.is_local() - || !cx.tcx.is_reachable_non_generic(instance_def_id)) - }; - if is_hidden { - llvm::set_visibility(llfn, llvm::Visibility::Hidden); - } - - // MinGW: For backward compatibility we rely on the linker to decide whether it - // should use dllimport for functions. - if cx.use_dll_storage_attrs - && let Some(library) = tcx.native_library(instance_def_id) - && library.kind.is_dllimport() - && !matches!(tcx.sess.target.env.as_ref(), "gnu" | "uclibc") + let is_hidden = if is_generic { + // This is a monomorphization of a generic function. + if !(cx.tcx.sess.opts.share_generics() + || tcx.codegen_fn_attrs(instance_def_id).inline + == rustc_attr_parsing::InlineAttr::Never) { - llvm::set_dllimport_storage_class(llfn); - } - - if cx.should_assume_dso_local(llfn, true) { - llvm::LLVMRustSetDSOLocal(llfn, true); + // When not sharing generics, all instances are in the same + // crate and have hidden visibility. + true + } else { + if let Some(instance_def_id) = instance_def_id.as_local() { + // This is a monomorphization of a generic function + // defined in the current crate. It is hidden if: + // - the definition is unreachable for downstream + // crates, or + // - the current crate does not re-export generics + // (because the crate is a C library or executable) + cx.tcx.is_unreachable_local_definition(instance_def_id) + || !cx.tcx.local_crate_exports_generics() + } else { + // This is a monomorphization of a generic function + // defined in an upstream crate. It is hidden if: + // - it is instantiated in this crate, and + // - the current crate does not re-export generics + instance.upstream_monomorphization(tcx).is_none() + && !cx.tcx.local_crate_exports_generics() + } } + } else { + // This is a non-generic function. It is hidden if: + // - it is instantiated in the local crate, and + // - it is defined an upstream crate (non-local), or + // - it is not reachable + cx.tcx.is_codegened_item(instance_def_id) + && (!instance_def_id.is_local() + || !cx.tcx.is_reachable_non_generic(instance_def_id)) + }; + if is_hidden { + llvm::set_visibility(llfn, llvm::Visibility::Hidden); } + // MinGW: For backward compatibility we rely on the linker to decide whether it + // should use dllimport for functions. + if cx.use_dll_storage_attrs + && let Some(library) = tcx.native_library(instance_def_id) + && library.kind.is_dllimport() + && !matches!(tcx.sess.target.env.as_ref(), "gnu" | "uclibc") + { + llvm::set_dllimport_storage_class(llfn); + } + + cx.assume_dso_local(llfn, true); + llfn }; diff --git a/compiler/rustc_codegen_llvm/src/consts.rs b/compiler/rustc_codegen_llvm/src/consts.rs index 5ab437d27c20..330e8a8f4069 100644 --- a/compiler/rustc_codegen_llvm/src/consts.rs +++ b/compiler/rustc_codegen_llvm/src/consts.rs @@ -336,12 +336,7 @@ impl<'ll> CodegenCx<'ll, '_> { llvm::set_thread_local_mode(g, self.tls_model); } - let dso_local = self.should_assume_dso_local(g, true); - if dso_local { - unsafe { - llvm::LLVMRustSetDSOLocal(g, true); - } - } + let dso_local = self.assume_dso_local(g, true); if !def_id.is_local() { let needs_dll_storage_attr = self.use_dll_storage_attrs @@ -456,9 +451,7 @@ impl<'ll> CodegenCx<'ll, '_> { set_global_alignment(self, g, alloc.align); llvm::set_initializer(g, v); - if self.should_assume_dso_local(g, true) { - llvm::LLVMRustSetDSOLocal(g, true); - } + self.assume_dso_local(g, true); // Forward the allocation's mutability (picked by the const interner) to LLVM. if alloc.mutability.is_not() { diff --git a/compiler/rustc_codegen_llvm/src/llvm/mod.rs b/compiler/rustc_codegen_llvm/src/llvm/mod.rs index 7f57e6406379..5ec934241314 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/mod.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/mod.rs @@ -409,3 +409,9 @@ pub(crate) fn set_dllimport_storage_class<'ll>(v: &'ll Value) { LLVMSetDLLStorageClass(v, DLLStorageClass::DllImport); } } + +pub(crate) fn set_dso_local<'ll>(v: &'ll Value) { + unsafe { + LLVMRustSetDSOLocal(v, true); + } +} diff --git a/compiler/rustc_codegen_llvm/src/mono_item.rs b/compiler/rustc_codegen_llvm/src/mono_item.rs index 70edee21bd63..a64627eaf598 100644 --- a/compiler/rustc_codegen_llvm/src/mono_item.rs +++ b/compiler/rustc_codegen_llvm/src/mono_item.rs @@ -38,11 +38,7 @@ impl<'tcx> PreDefineCodegenMethods<'tcx> for CodegenCx<'_, 'tcx> { llvm::set_linkage(g, base::linkage_to_llvm(linkage)); llvm::set_visibility(g, base::visibility_to_llvm(visibility)); - unsafe { - if self.should_assume_dso_local(g, false) { - llvm::LLVMRustSetDSOLocal(g, true); - } - } + self.assume_dso_local(g, false); self.instances.borrow_mut().insert(instance, g); } @@ -79,9 +75,7 @@ impl<'tcx> PreDefineCodegenMethods<'tcx> for CodegenCx<'_, 'tcx> { debug!("predefine_fn: instance = {:?}", instance); - if self.should_assume_dso_local(lldecl, false) { - unsafe { llvm::LLVMRustSetDSOLocal(lldecl, true) }; - } + self.assume_dso_local(lldecl, false); self.instances.borrow_mut().insert(instance, lldecl); } @@ -90,11 +84,16 @@ impl<'tcx> PreDefineCodegenMethods<'tcx> for CodegenCx<'_, 'tcx> { impl CodegenCx<'_, '_> { /// Whether a definition or declaration can be assumed to be local to a group of /// libraries that form a single DSO or executable. - pub(crate) fn should_assume_dso_local( - &self, - llval: &llvm::Value, - is_declaration: bool, - ) -> bool { + /// Marks the local as DSO if so. + pub(crate) fn assume_dso_local(&self, llval: &llvm::Value, is_declaration: bool) -> bool { + let assume = self.should_assume_dso_local(llval, is_declaration); + if assume { + llvm::set_dso_local(llval); + } + assume + } + + fn should_assume_dso_local(&self, llval: &llvm::Value, is_declaration: bool) -> bool { let linkage = llvm::get_linkage(llval); let visibility = llvm::get_visibility(llval); From 83fd16f6258f3ae6fb6c8d6cf06eb4f8c654333e Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Tue, 18 Feb 2025 17:17:16 +0100 Subject: [PATCH 157/255] vectorcall ABI: error if sse2 is not available --- compiler/rustc_monomorphize/messages.ftl | 14 ++++++ compiler/rustc_monomorphize/src/errors.rs | 13 ++++++ .../src/mono_checks/abi_check.rs | 13 +++++- ...d-abi-checks.rs => simd-abi-checks-avx.rs} | 0 ...ecks.stderr => simd-abi-checks-avx.stderr} | 44 +++++++++---------- ...e-abi-checks.rs => simd-abi-checks-sse.rs} | 0 ...ecks.stderr => simd-abi-checks-sse.stderr} | 4 +- tests/ui/abi/vectorcall-abi-checks.rs | 21 +++++++++ tests/ui/abi/vectorcall-abi-checks.stderr | 18 ++++++++ tests/ui/extern/extern-vectorcall.rs | 1 + tests/ui/sse-simd-abi-checks.rs | 23 ---------- tests/ui/sse-simd-abi-checks.stderr | 25 ----------- 12 files changed, 102 insertions(+), 74 deletions(-) rename tests/ui/abi/{simd-abi-checks.rs => simd-abi-checks-avx.rs} (100%) rename tests/ui/abi/{simd-abi-checks.stderr => simd-abi-checks-avx.stderr} (94%) rename tests/ui/abi/{sse-abi-checks.rs => simd-abi-checks-sse.rs} (100%) rename tests/ui/abi/{sse-abi-checks.stderr => simd-abi-checks-sse.stderr} (94%) create mode 100644 tests/ui/abi/vectorcall-abi-checks.rs create mode 100644 tests/ui/abi/vectorcall-abi-checks.stderr delete mode 100644 tests/ui/sse-simd-abi-checks.rs delete mode 100644 tests/ui/sse-simd-abi-checks.stderr diff --git a/compiler/rustc_monomorphize/messages.ftl b/compiler/rustc_monomorphize/messages.ftl index a83c18cda0e2..bdeab12ab503 100644 --- a/compiler/rustc_monomorphize/messages.ftl +++ b/compiler/rustc_monomorphize/messages.ftl @@ -22,6 +22,20 @@ monomorphize_abi_error_unsupported_vector_type = *[false] defined } here +monomorphize_abi_required_target_feature = + this function {$is_call -> + [true] call + *[false] definition + } uses ABI "{$abi}" which requires the `{$required_feature}` target feature, which is not enabled{$is_call -> + [true] {" "}in the caller + *[false] {""} + } + .label = function {$is_call -> + [true] called + *[false] defined + } here + .help = consider enabling it globally (`-C target-feature=+{$required_feature}`) or locally (`#[target_feature(enable="{$required_feature}")]`) + monomorphize_couldnt_dump_mono_stats = unexpected error occurred while dumping monomorphization stats: {$error} diff --git a/compiler/rustc_monomorphize/src/errors.rs b/compiler/rustc_monomorphize/src/errors.rs index 1cfcd52b6662..8dafbbca905f 100644 --- a/compiler/rustc_monomorphize/src/errors.rs +++ b/compiler/rustc_monomorphize/src/errors.rs @@ -90,3 +90,16 @@ pub(crate) struct AbiErrorUnsupportedVectorType<'a> { /// Whether this is a problem at a call site or at a declaration. pub is_call: bool, } + +#[derive(Diagnostic)] +#[diag(monomorphize_abi_required_target_feature)] +#[help] +pub(crate) struct AbiRequiredTargetFeature<'a> { + #[primary_span] + #[label] + pub span: Span, + pub required_feature: &'a str, + pub abi: &'a str, + /// Whether this is a problem at a call site or at a declaration. + pub is_call: bool, +} diff --git a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs index b5a7a8103795..4c8dd933317e 100644 --- a/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs +++ b/compiler/rustc_monomorphize/src/mono_checks/abi_check.rs @@ -29,12 +29,12 @@ fn uses_vector_registers(mode: &PassMode, repr: &BackendRepr) -> bool { fn do_check_abi<'tcx>( tcx: TyCtxt<'tcx>, abi: &FnAbi<'tcx, Ty<'tcx>>, - target_feature_def: DefId, + def_id: DefId, is_call: bool, span: impl Fn() -> Span, ) { let feature_def = tcx.sess.target.features_for_correct_vector_abi(); - let codegen_attrs = tcx.codegen_fn_attrs(target_feature_def); + let codegen_attrs = tcx.codegen_fn_attrs(def_id); let have_feature = |feat: Symbol| { tcx.sess.unstable_target_features.contains(&feat) || codegen_attrs.target_features.iter().any(|x| x.name == feat) @@ -77,6 +77,15 @@ fn do_check_abi<'tcx>( } } } + // The `vectorcall` ABI is special in that it requires SSE2 no matter which types are being passed. + if abi.conv == Conv::X86VectorCall && !have_feature(sym::sse2) { + tcx.dcx().emit_err(errors::AbiRequiredTargetFeature { + span: span(), + required_feature: "sse2", + abi: "vectorcall", + is_call, + }); + } } /// Checks that the ABI of a given instance of a function does not contain vector-passed arguments diff --git a/tests/ui/abi/simd-abi-checks.rs b/tests/ui/abi/simd-abi-checks-avx.rs similarity index 100% rename from tests/ui/abi/simd-abi-checks.rs rename to tests/ui/abi/simd-abi-checks-avx.rs diff --git a/tests/ui/abi/simd-abi-checks.stderr b/tests/ui/abi/simd-abi-checks-avx.stderr similarity index 94% rename from tests/ui/abi/simd-abi-checks.stderr rename to tests/ui/abi/simd-abi-checks-avx.stderr index a849993a1663..0dddc7dfa1c1 100644 --- a/tests/ui/abi/simd-abi-checks.stderr +++ b/tests/ui/abi/simd-abi-checks-avx.stderr @@ -1,5 +1,5 @@ warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:64:11 + --> $DIR/simd-abi-checks-avx.rs:64:11 | LL | f(g()); | ^^^ function called here @@ -10,7 +10,7 @@ LL | f(g()); = note: `#[warn(abi_unsupported_vector_types)]` on by default warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:64:9 + --> $DIR/simd-abi-checks-avx.rs:64:9 | LL | f(g()); | ^^^^^^ function called here @@ -20,7 +20,7 @@ LL | f(g()); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:72:14 + --> $DIR/simd-abi-checks-avx.rs:72:14 | LL | gavx(favx()); | ^^^^^^ function called here @@ -30,7 +30,7 @@ LL | gavx(favx()); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:72:9 + --> $DIR/simd-abi-checks-avx.rs:72:9 | LL | gavx(favx()); | ^^^^^^^^^^^^ function called here @@ -40,7 +40,7 @@ LL | gavx(favx()); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:84:19 + --> $DIR/simd-abi-checks-avx.rs:84:19 | LL | w(Wrapper(g())); | ^^^ function called here @@ -50,7 +50,7 @@ LL | w(Wrapper(g())); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `Wrapper` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:84:9 + --> $DIR/simd-abi-checks-avx.rs:84:9 | LL | w(Wrapper(g())); | ^^^^^^^^^^^^^^^ function called here @@ -60,7 +60,7 @@ LL | w(Wrapper(g())); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:100:9 + --> $DIR/simd-abi-checks-avx.rs:100:9 | LL | some_extern(); | ^^^^^^^^^^^^^ function called here @@ -70,7 +70,7 @@ LL | some_extern(); = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function definition uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:27:1 + --> $DIR/simd-abi-checks-avx.rs:27:1 | LL | unsafe extern "C" fn g() -> __m256 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -80,7 +80,7 @@ LL | unsafe extern "C" fn g() -> __m256 { = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function definition uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:21:1 + --> $DIR/simd-abi-checks-avx.rs:21:1 | LL | unsafe extern "C" fn f(_: __m256) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -90,7 +90,7 @@ LL | unsafe extern "C" fn f(_: __m256) { = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function definition uses SIMD vector type `Wrapper` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:15:1 + --> $DIR/simd-abi-checks-avx.rs:15:1 | LL | unsafe extern "C" fn w(_: Wrapper) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -100,7 +100,7 @@ LL | unsafe extern "C" fn w(_: Wrapper) { = help: consider enabling it globally (`-C target-feature=+avx`) or locally (`#[target_feature(enable="avx")]`) warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:57:8 + --> $DIR/simd-abi-checks-avx.rs:57:8 | LL | || g() | ^^^ function called here @@ -113,7 +113,7 @@ warning: 11 warnings emitted Future incompatibility report: Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:64:11 + --> $DIR/simd-abi-checks-avx.rs:64:11 | LL | f(g()); | ^^^ function called here @@ -125,7 +125,7 @@ LL | f(g()); Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:64:9 + --> $DIR/simd-abi-checks-avx.rs:64:9 | LL | f(g()); | ^^^^^^ function called here @@ -137,7 +137,7 @@ LL | f(g()); Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:72:14 + --> $DIR/simd-abi-checks-avx.rs:72:14 | LL | gavx(favx()); | ^^^^^^ function called here @@ -149,7 +149,7 @@ LL | gavx(favx()); Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:72:9 + --> $DIR/simd-abi-checks-avx.rs:72:9 | LL | gavx(favx()); | ^^^^^^^^^^^^ function called here @@ -161,7 +161,7 @@ LL | gavx(favx()); Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:84:19 + --> $DIR/simd-abi-checks-avx.rs:84:19 | LL | w(Wrapper(g())); | ^^^ function called here @@ -173,7 +173,7 @@ LL | w(Wrapper(g())); Future breakage diagnostic: warning: this function call uses SIMD vector type `Wrapper` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:84:9 + --> $DIR/simd-abi-checks-avx.rs:84:9 | LL | w(Wrapper(g())); | ^^^^^^^^^^^^^^^ function called here @@ -185,7 +185,7 @@ LL | w(Wrapper(g())); Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:100:9 + --> $DIR/simd-abi-checks-avx.rs:100:9 | LL | some_extern(); | ^^^^^^^^^^^^^ function called here @@ -197,7 +197,7 @@ LL | some_extern(); Future breakage diagnostic: warning: this function definition uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:27:1 + --> $DIR/simd-abi-checks-avx.rs:27:1 | LL | unsafe extern "C" fn g() -> __m256 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -209,7 +209,7 @@ LL | unsafe extern "C" fn g() -> __m256 { Future breakage diagnostic: warning: this function definition uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:21:1 + --> $DIR/simd-abi-checks-avx.rs:21:1 | LL | unsafe extern "C" fn f(_: __m256) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -221,7 +221,7 @@ LL | unsafe extern "C" fn f(_: __m256) { Future breakage diagnostic: warning: this function definition uses SIMD vector type `Wrapper` which (with the chosen ABI) requires the `avx` target feature, which is not enabled - --> $DIR/simd-abi-checks.rs:15:1 + --> $DIR/simd-abi-checks-avx.rs:15:1 | LL | unsafe extern "C" fn w(_: Wrapper) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -233,7 +233,7 @@ LL | unsafe extern "C" fn w(_: Wrapper) { Future breakage diagnostic: warning: this function call uses SIMD vector type `std::arch::x86_64::__m256` which (with the chosen ABI) requires the `avx` target feature, which is not enabled in the caller - --> $DIR/simd-abi-checks.rs:57:8 + --> $DIR/simd-abi-checks-avx.rs:57:8 | LL | || g() | ^^^ function called here diff --git a/tests/ui/abi/sse-abi-checks.rs b/tests/ui/abi/simd-abi-checks-sse.rs similarity index 100% rename from tests/ui/abi/sse-abi-checks.rs rename to tests/ui/abi/simd-abi-checks-sse.rs diff --git a/tests/ui/abi/sse-abi-checks.stderr b/tests/ui/abi/simd-abi-checks-sse.stderr similarity index 94% rename from tests/ui/abi/sse-abi-checks.stderr rename to tests/ui/abi/simd-abi-checks-sse.stderr index 95486f480d25..c0f2e6e1e1b1 100644 --- a/tests/ui/abi/sse-abi-checks.stderr +++ b/tests/ui/abi/simd-abi-checks-sse.stderr @@ -1,5 +1,5 @@ warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled - --> $DIR/sse-simd-abi-checks.rs:20:1 + --> $DIR/simd-abi-checks-sse.rs:20:1 | LL | pub unsafe extern "C" fn f(_: SseVector) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here @@ -13,7 +13,7 @@ warning: 1 warning emitted Future incompatibility report: Future breakage diagnostic: warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled - --> $DIR/sse-simd-abi-checks.rs:20:1 + --> $DIR/simd-abi-checks-sse.rs:20:1 | LL | pub unsafe extern "C" fn f(_: SseVector) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here diff --git a/tests/ui/abi/vectorcall-abi-checks.rs b/tests/ui/abi/vectorcall-abi-checks.rs new file mode 100644 index 000000000000..d83bbffa745f --- /dev/null +++ b/tests/ui/abi/vectorcall-abi-checks.rs @@ -0,0 +1,21 @@ +//@ add-core-stubs +//@ compile-flags: --crate-type=rlib --target=i586-unknown-linux-gnu -C target-feature=-sse,-sse2 +//@ build-fail +//@ ignore-pass (test emits codegen-time errors) +//@ needs-llvm-components: x86 +#![feature(no_core, abi_vectorcall)] +#![no_core] + +extern crate minicore; +use minicore::*; + +#[no_mangle] +pub extern "vectorcall" fn f() { + //~^ ABI "vectorcall" which requires the `sse2` target feature +} + +#[no_mangle] +pub fn call_site() { + f(); + //~^ ABI "vectorcall" which requires the `sse2` target feature +} diff --git a/tests/ui/abi/vectorcall-abi-checks.stderr b/tests/ui/abi/vectorcall-abi-checks.stderr new file mode 100644 index 000000000000..671ebc25b42a --- /dev/null +++ b/tests/ui/abi/vectorcall-abi-checks.stderr @@ -0,0 +1,18 @@ +error: this function definition uses ABI "vectorcall" which requires the `sse2` target feature, which is not enabled + --> $DIR/vectorcall-abi-checks.rs:13:1 + | +LL | pub extern "vectorcall" fn f() { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here + | + = help: consider enabling it globally (`-C target-feature=+sse2`) or locally (`#[target_feature(enable="sse2")]`) + +error: this function call uses ABI "vectorcall" which requires the `sse2` target feature, which is not enabled in the caller + --> $DIR/vectorcall-abi-checks.rs:19:5 + | +LL | f(); + | ^^^ function called here + | + = help: consider enabling it globally (`-C target-feature=+sse2`) or locally (`#[target_feature(enable="sse2")]`) + +error: aborting due to 2 previous errors + diff --git a/tests/ui/extern/extern-vectorcall.rs b/tests/ui/extern/extern-vectorcall.rs index c0d872bc14be..fb23c4cd5b54 100644 --- a/tests/ui/extern/extern-vectorcall.rs +++ b/tests/ui/extern/extern-vectorcall.rs @@ -2,6 +2,7 @@ //@ revisions: x64 x32 //@ [x64]only-x86_64 //@ [x32]only-x86 +//@ [x32]compile-flags: -Ctarget-feature=+sse2 #![feature(abi_vectorcall)] diff --git a/tests/ui/sse-simd-abi-checks.rs b/tests/ui/sse-simd-abi-checks.rs deleted file mode 100644 index cb708bea3cae..000000000000 --- a/tests/ui/sse-simd-abi-checks.rs +++ /dev/null @@ -1,23 +0,0 @@ -//! Ensure we trigger abi_unsupported_vector_types for target features that are usually enabled -//! on a target via the base CPU, but disabled in this file via a `-C` flag. -//@ compile-flags: --crate-type=rlib --target=i586-unknown-linux-gnu -//@ compile-flags: -Ctarget-cpu=pentium4 -C target-feature=-sse,-sse2 -//@ add-core-stubs -//@ build-pass -//@ ignore-pass (test emits codegen-time warnings) -//@ needs-llvm-components: x86 -#![feature(no_core, repr_simd)] -#![no_core] -#![allow(improper_ctypes_definitions)] - -extern crate minicore; -use minicore::*; - -#[repr(simd)] -pub struct SseVector([i64; 2]); - -#[no_mangle] -pub unsafe extern "C" fn f(_: SseVector) { - //~^ this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled - //~| WARNING this was previously accepted by the compiler -} diff --git a/tests/ui/sse-simd-abi-checks.stderr b/tests/ui/sse-simd-abi-checks.stderr deleted file mode 100644 index 95486f480d25..000000000000 --- a/tests/ui/sse-simd-abi-checks.stderr +++ /dev/null @@ -1,25 +0,0 @@ -warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled - --> $DIR/sse-simd-abi-checks.rs:20:1 - | -LL | pub unsafe extern "C" fn f(_: SseVector) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here - | - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #116558 - = help: consider enabling it globally (`-C target-feature=+sse`) or locally (`#[target_feature(enable="sse")]`) - = note: `#[warn(abi_unsupported_vector_types)]` on by default - -warning: 1 warning emitted - -Future incompatibility report: Future breakage diagnostic: -warning: this function definition uses SIMD vector type `SseVector` which (with the chosen ABI) requires the `sse` target feature, which is not enabled - --> $DIR/sse-simd-abi-checks.rs:20:1 - | -LL | pub unsafe extern "C" fn f(_: SseVector) { - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ function defined here - | - = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! - = note: for more information, see issue #116558 - = help: consider enabling it globally (`-C target-feature=+sse`) or locally (`#[target_feature(enable="sse")]`) - = note: `#[warn(abi_unsupported_vector_types)]` on by default - From c23bf48e4fedafee67ae1e52edeb8f3f94268a7d Mon Sep 17 00:00:00 2001 From: usamoi Date: Mon, 3 Feb 2025 16:43:24 +0800 Subject: [PATCH 158/255] infer linker flavor by linker name if it's sufficiently specific --- compiler/rustc_target/src/spec/mod.rs | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f7e467b0c115..60e1699b11d6 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -303,15 +303,16 @@ impl LinkerFlavor { } } - fn infer_linker_hints(linker_stem: &str) -> (Option, Option) { + fn infer_linker_hints(linker_stem: &str) -> Result, Option)> { // Remove any version postfix. let stem = linker_stem .rsplit_once('-') .and_then(|(lhs, rhs)| rhs.chars().all(char::is_numeric).then_some(lhs)) .unwrap_or(linker_stem); - // GCC/Clang can have an optional target prefix. - if stem == "emcc" + if stem == "llvm-bitcode-linker" { + Ok(Self::Llbc) + } else if stem == "emcc" // GCC/Clang can have an optional target prefix. || stem == "gcc" || stem.ends_with("-gcc") || stem == "g++" @@ -321,7 +322,7 @@ impl LinkerFlavor { || stem == "clang++" || stem.ends_with("-clang++") { - (Some(Cc::Yes), Some(Lld::No)) + Err((Some(Cc::Yes), Some(Lld::No))) } else if stem == "wasm-ld" || stem.ends_with("-wasm-ld") || stem == "ld.lld" @@ -329,11 +330,11 @@ impl LinkerFlavor { || stem == "rust-lld" || stem == "lld-link" { - (Some(Cc::No), Some(Lld::Yes)) + Err((Some(Cc::No), Some(Lld::Yes))) } else if stem == "ld" || stem.ends_with("-ld") || stem == "link" { - (Some(Cc::No), Some(Lld::No)) + Err((Some(Cc::No), Some(Lld::No))) } else { - (None, None) + Err((None, None)) } } @@ -357,7 +358,10 @@ impl LinkerFlavor { } pub fn with_linker_hints(self, linker_stem: &str) -> LinkerFlavor { - self.with_hints(LinkerFlavor::infer_linker_hints(linker_stem)) + match LinkerFlavor::infer_linker_hints(linker_stem) { + Ok(linker_flavor) => linker_flavor, + Err(hints) => self.with_hints(hints), + } } pub fn check_compatibility(self, cli: LinkerFlavorCli) -> Option { From d5128f92745774a93cd4384a71c7df727bc87377 Mon Sep 17 00:00:00 2001 From: Patryk Wychowaniec Date: Thu, 20 Feb 2025 15:05:06 +0100 Subject: [PATCH 159/255] avr-rjmp-offset: Explain `.target_cpu()` --- tests/run-make/avr-rjmp-offset/rmake.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/run-make/avr-rjmp-offset/rmake.rs b/tests/run-make/avr-rjmp-offset/rmake.rs index 73b6ab3977e9..da314f26ca78 100644 --- a/tests/run-make/avr-rjmp-offset/rmake.rs +++ b/tests/run-make/avr-rjmp-offset/rmake.rs @@ -23,6 +23,10 @@ fn main() { .opt_level("s") .panic("abort") .target("avr-none") + // rust-lld has some troubles understanding the -mmcu flag, so for the + // time being let's tell rustc to emit binary that's compatible with the + // target CPU that lld defaults to, i.e. just `avr` (that's simply the + // minimal common instruction set across all AVRs) .target_cpu("avr") // normally one links with `avr-gcc`, but this is not available in CI, // hence this test diverges from the default behavior to enable linking From 18c210c7869b5786acde4d343a47df99113dba9b Mon Sep 17 00:00:00 2001 From: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Thu, 20 Feb 2025 15:06:53 +0000 Subject: [PATCH 160/255] Workaround Cranelift not yet properly supporting vectors smaller than 128bit While it would technically be possible to workaround this in cg_clif, it quickly becomes very messy and would likely cause correctness issues. Working around it in rustc instead is much simper and won't have any negative impact for code running on stable as vectors smaller than 128bit can only be made on nightly using core::simd or #[repr(simd)]. --- compiler/rustc_target/src/callconv/mod.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/compiler/rustc_target/src/callconv/mod.rs b/compiler/rustc_target/src/callconv/mod.rs index c2a176facdfa..b90a006ac51a 100644 --- a/compiler/rustc_target/src/callconv/mod.rs +++ b/compiler/rustc_target/src/callconv/mod.rs @@ -737,7 +737,9 @@ impl<'a, Ty> FnAbi<'a, Ty> { // to 128-bit-sized vectors. "x86" if spec.rustc_abi == Some(RustcAbi::X86Sse2) => arg.layout.size.bits() <= 128, "x86_64" if spec.rustc_abi != Some(RustcAbi::X86Softfloat) => { - arg.layout.size.bits() <= 128 + // FIXME once https://github.com/bytecodealliance/wasmtime/issues/10254 is fixed + // accept vectors up to 128bit rather than vectors of exactly 128bit. + arg.layout.size.bits() == 128 } // So far, we haven't implemented this logic for any other target. _ => false, From c2aed39ea7285d86d4a9c1b02e221bddc1d9a45f Mon Sep 17 00:00:00 2001 From: Alex Crichton Date: Thu, 20 Feb 2025 08:15:07 -0800 Subject: [PATCH 161/255] Update docs for default features of wasm targets LLVM 20 enabled the `nontrapping-fptoint` and `bulk-memory` features by default, so this updates the corresponding documentation for the `wasm32-*` targets (which all point to `wasm32-unknown-unknown`). cc #137315 --- src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md b/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md index 73264aba8580..ba95ab7af6d1 100644 --- a/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md +++ b/src/doc/rustc/src/platform-support/wasm32-unknown-unknown.md @@ -129,6 +129,8 @@ As of the time of this writing the proposals that are enabled by default (the * `mutable-globals` * `reference-types` * `sign-ext` +* `nontrapping-fptoint` (Rust 1.87.0+, LLVM 20+) +* `bulk-memory` (Rust 1.87.0+, LLVM 20+) If you're compiling WebAssembly code for an engine that does not support a feature in LLVM's default feature set then the feature must be disabled at From 32a1ff1aafba04670f557c7175d6962148a0260f Mon Sep 17 00:00:00 2001 From: Florian Bartels Date: Thu, 20 Feb 2025 16:40:50 +0000 Subject: [PATCH 162/255] Make x86 QNX target name consistent with other Rust targets --- compiler/rustc_target/src/spec/mod.rs | 2 +- .../{i586_pc_nto_qnx700.rs => i686_pc_nto_qnx700.rs} | 0 src/doc/rustc/src/platform-support.md | 2 +- src/doc/rustc/src/platform-support/nto-qnx.md | 2 +- src/tools/tidy/src/target_policy.rs | 1 + tests/assembly/targets/targets-elf.rs | 6 +++--- 6 files changed, 7 insertions(+), 6 deletions(-) rename compiler/rustc_target/src/spec/targets/{i586_pc_nto_qnx700.rs => i686_pc_nto_qnx700.rs} (100%) diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index f7e467b0c115..e9733113acc7 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -2001,7 +2001,7 @@ supported_targets! { ("x86_64-pc-nto-qnx710", x86_64_pc_nto_qnx710), ("x86_64-pc-nto-qnx710_iosock", x86_64_pc_nto_qnx710_iosock), ("x86_64-pc-nto-qnx800", x86_64_pc_nto_qnx800), - ("i586-pc-nto-qnx700", i586_pc_nto_qnx700), + ("i686-pc-nto-qnx700", i686_pc_nto_qnx700), ("aarch64-unknown-linux-ohos", aarch64_unknown_linux_ohos), ("armv7-unknown-linux-ohos", armv7_unknown_linux_ohos), diff --git a/compiler/rustc_target/src/spec/targets/i586_pc_nto_qnx700.rs b/compiler/rustc_target/src/spec/targets/i686_pc_nto_qnx700.rs similarity index 100% rename from compiler/rustc_target/src/spec/targets/i586_pc_nto_qnx700.rs rename to compiler/rustc_target/src/spec/targets/i686_pc_nto_qnx700.rs diff --git a/src/doc/rustc/src/platform-support.md b/src/doc/rustc/src/platform-support.md index b5cd3864620d..86a210a0d9c0 100644 --- a/src/doc/rustc/src/platform-support.md +++ b/src/doc/rustc/src/platform-support.md @@ -309,10 +309,10 @@ target | std | host | notes [`hexagon-unknown-linux-musl`](platform-support/hexagon-unknown-linux-musl.md) | ✓ | | Hexagon Linux with musl 1.2.3 [`hexagon-unknown-none-elf`](platform-support/hexagon-unknown-none-elf.md)| * | | Bare Hexagon (v60+, HVX) [`i386-apple-ios`](platform-support/apple-ios.md) | ✓ | | 32-bit x86 iOS (Penryn) [^x86_32-floats-return-ABI] -[`i586-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS (Pentium 4) [^x86_32-floats-return-ABI] [`i586-unknown-netbsd`](platform-support/netbsd.md) | ✓ | | 32-bit x86 (original Pentium) [^x86_32-floats-x87] [`i586-unknown-redox`](platform-support/redox.md) | ✓ | | 32-bit x86 Redox OS (PentiumPro) [^x86_32-floats-x87] [`i686-apple-darwin`](platform-support/apple-darwin.md) | ✓ | ✓ | 32-bit macOS (10.12+, Sierra+, Penryn) [^x86_32-floats-return-ABI] +[`i686-pc-nto-qnx700`](platform-support/nto-qnx.md) | * | | 32-bit x86 QNX Neutrino 7.0 RTOS (Pentium 4) [^x86_32-floats-return-ABI] `i686-unknown-haiku` | ✓ | ✓ | 32-bit Haiku (Pentium 4) [^x86_32-floats-return-ABI] [`i686-unknown-hurd-gnu`](platform-support/hurd.md) | ✓ | ✓ | 32-bit GNU/Hurd (Pentium 4) [^x86_32-floats-return-ABI] [`i686-unknown-netbsd`](platform-support/netbsd.md) | ✓ | ✓ | NetBSD/i386 (Pentium 4) [^x86_32-floats-return-ABI] diff --git a/src/doc/rustc/src/platform-support/nto-qnx.md b/src/doc/rustc/src/platform-support/nto-qnx.md index 339741f14727..77e8caaee4cd 100644 --- a/src/doc/rustc/src/platform-support/nto-qnx.md +++ b/src/doc/rustc/src/platform-support/nto-qnx.md @@ -31,7 +31,7 @@ Currently, the following QNX versions and compilation targets are supported: | `aarch64-unknown-nto-qnx710_iosock` | QNX Neutrino 7.1 with io-sock | AArch64 | ? | ✓ | | `x86_64-pc-nto-qnx710_iosock` | QNX Neutrino 7.1 with io-sock | x86_64 | ? | ✓ | | `aarch64-unknown-nto-qnx700` | QNX Neutrino 7.0 | AArch64 | ? | ✓ | -| `i586-pc-nto-qnx700` | QNX Neutrino 7.0 | x86 | | ✓ | +| `i686-pc-nto-qnx700` | QNX Neutrino 7.0 | x86 | | ✓ | On QNX Neutrino 7.0 and 7.1, `io-pkt` is used as network stack by default. QNX Neutrino 7.1 includes the optional network stack `io-sock`. diff --git a/src/tools/tidy/src/target_policy.rs b/src/tools/tidy/src/target_policy.rs index 776221d30623..b2681934417c 100644 --- a/src/tools/tidy/src/target_policy.rs +++ b/src/tools/tidy/src/target_policy.rs @@ -21,6 +21,7 @@ const EXCEPTIONS: &[&str] = &[ "xtensa_esp32s2_espidf", "xtensa_esp32s3_none_elf", "xtensa_esp32s3_espidf", + "i586_pc_nto_qnx700", // Renamed to i686-pc-nto-qnx700, see https://github.com/rust-lang/rust/issues/136495 ]; pub fn check(root_path: &Path, bad: &mut bool) { diff --git a/tests/assembly/targets/targets-elf.rs b/tests/assembly/targets/targets-elf.rs index b5c0ee5a1074..3e73d2c6eb72 100644 --- a/tests/assembly/targets/targets-elf.rs +++ b/tests/assembly/targets/targets-elf.rs @@ -216,9 +216,9 @@ //@ revisions: hexagon_unknown_none_elf //@ [hexagon_unknown_none_elf] compile-flags: --target hexagon-unknown-none-elf //@ [hexagon_unknown_none_elf] needs-llvm-components: hexagon -//@ revisions: i586_pc_nto_qnx700 -//@ [i586_pc_nto_qnx700] compile-flags: --target i586-pc-nto-qnx700 -//@ [i586_pc_nto_qnx700] needs-llvm-components: x86 +//@ revisions: i686_pc_nto_qnx700 +//@ [i686_pc_nto_qnx700] compile-flags: --target i686-pc-nto-qnx700 +//@ [i686_pc_nto_qnx700] needs-llvm-components: x86 //@ revisions: i586_unknown_linux_gnu //@ [i586_unknown_linux_gnu] compile-flags: --target i586-unknown-linux-gnu //@ [i586_unknown_linux_gnu] needs-llvm-components: x86 From 835d434c79559f68e22a6ddf6394b84f4fd353cd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Wed, 19 Feb 2025 18:52:53 +0000 Subject: [PATCH 163/255] Reword message --- compiler/rustc_lint/messages.ftl | 4 ++-- compiler/rustc_lint/src/early/diagnostics.rs | 4 ++-- compiler/rustc_lint/src/lints.rs | 2 +- compiler/rustc_lint_defs/src/lib.rs | 2 +- compiler/rustc_resolve/src/macros.rs | 4 ++-- .../key-value-expansion-scope.stderr | 24 +++++++++---------- 6 files changed, 20 insertions(+), 20 deletions(-) diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index 1d8bdb948991..679367634276 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -630,8 +630,8 @@ lint_opaque_hidden_inferred_bound_sugg = add this bound lint_or_patterns_back_compat = the meaning of the `pat` fragment specifier is changing in Rust 2021, which may affect this macro .suggestion = use pat_param to preserve semantics -lint_out_of_scope_macro_calls = cannot find macro `{$path}` in {$scope} - .label = not found in {$scope} +lint_out_of_scope_macro_calls = cannot find macro `{$path}` in the current scope when looking from {$location} + .label = not found from {$location} .help = import `macro_rules` with `use` to make it callable above its definition lint_overflowing_bin_hex = literal out of range for `{$ty}` diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index d1345467d103..40ca9e05d95d 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -444,8 +444,8 @@ pub(super) fn decorate_lint( lints::InnerAttributeUnstable::CustomInnerAttribute } .decorate_lint(diag), - BuiltinLintDiag::OutOfScopeMacroCalls { span, path, scope } => { - lints::OutOfScopeMacroCalls { span, path, scope }.decorate_lint(diag) + BuiltinLintDiag::OutOfScopeMacroCalls { span, path, location } => { + lints::OutOfScopeMacroCalls { span, path, location }.decorate_lint(diag) } BuiltinLintDiag::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by } => { lints::UnexpectedBuiltinCfg { cfg, cfg_name, controlled_by }.decorate_lint(diag) diff --git a/compiler/rustc_lint/src/lints.rs b/compiler/rustc_lint/src/lints.rs index afd3117d6bc1..005863095729 100644 --- a/compiler/rustc_lint/src/lints.rs +++ b/compiler/rustc_lint/src/lints.rs @@ -3111,7 +3111,7 @@ pub(crate) struct OutOfScopeMacroCalls { #[label] pub span: Span, pub path: String, - pub scope: String, + pub location: String, } #[derive(LintDiagnostic)] diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index efa6a934b006..66fdba28502b 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -821,7 +821,7 @@ pub enum BuiltinLintDiag { OutOfScopeMacroCalls { span: Span, path: String, - scope: String, + location: String, }, UnexpectedBuiltinCfg { cfg: String, diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 07d1d377b419..a70def2f6c93 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -1070,7 +1070,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { None, ); if fallback_binding.ok().and_then(|b| b.res().opt_def_id()) != Some(def_id) { - let scope = match parent_scope.module.kind { + let location = match parent_scope.module.kind { ModuleKind::Def(_, _, name) if name == kw::Empty => { "the crate root".to_string() } @@ -1086,7 +1086,7 @@ impl<'ra, 'tcx> Resolver<'ra, 'tcx> { BuiltinLintDiag::OutOfScopeMacroCalls { span: path.span, path: pprust::path_to_string(path), - scope, + location, }, ); } diff --git a/tests/ui/attributes/key-value-expansion-scope.stderr b/tests/ui/attributes/key-value-expansion-scope.stderr index 172b2c54cc6b..91a602e57d9e 100644 --- a/tests/ui/attributes/key-value-expansion-scope.stderr +++ b/tests/ui/attributes/key-value-expansion-scope.stderr @@ -126,62 +126,62 @@ LL | #![doc = in_block!()] | = help: have you added the `#[macro_use]` on the module/import? -warning: cannot find macro `in_root` in the crate root +warning: cannot find macro `in_root` in the current scope when looking from the crate root --> $DIR/key-value-expansion-scope.rs:1:10 | LL | #![doc = in_root!()] - | ^^^^^^^ not found in the crate root + | ^^^^^^^ not found from the crate root | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition = note: `#[warn(out_of_scope_macro_calls)]` on by default -warning: cannot find macro `in_mod_escape` in the crate root +warning: cannot find macro `in_mod_escape` in the current scope when looking from the crate root --> $DIR/key-value-expansion-scope.rs:4:10 | LL | #![doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ not found in the crate root + | ^^^^^^^^^^^^^ not found from the crate root | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod` in module `macros_stay` +warning: cannot find macro `in_mod` in the current scope when looking from module `macros_stay` --> $DIR/key-value-expansion-scope.rs:21:9 | LL | #[doc = in_mod!()] - | ^^^^^^ not found in module `macros_stay` + | ^^^^^^ not found from module `macros_stay` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod` in module `macros_stay` +warning: cannot find macro `in_mod` in the current scope when looking from module `macros_stay` --> $DIR/key-value-expansion-scope.rs:24:14 | LL | #![doc = in_mod!()] - | ^^^^^^ not found in module `macros_stay` + | ^^^^^^ not found from module `macros_stay` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod_escape` in module `macros_escape` +warning: cannot find macro `in_mod_escape` in the current scope when looking from module `macros_escape` --> $DIR/key-value-expansion-scope.rs:36:9 | LL | #[doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ not found in module `macros_escape` + | ^^^^^^^^^^^^^ not found from module `macros_escape` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 = help: import `macro_rules` with `use` to make it callable above its definition -warning: cannot find macro `in_mod_escape` in module `macros_escape` +warning: cannot find macro `in_mod_escape` in the current scope when looking from module `macros_escape` --> $DIR/key-value-expansion-scope.rs:39:14 | LL | #![doc = in_mod_escape!()] - | ^^^^^^^^^^^^^ not found in module `macros_escape` + | ^^^^^^^^^^^^^ not found from module `macros_escape` | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = note: for more information, see issue #124535 From e565eeed78d0e59e475dce34b0833bbf8f84871b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Tue, 18 Feb 2025 20:29:10 +0000 Subject: [PATCH 164/255] Tweak E0277 when predicate comes indirectly from `?` When a `?` operation requires an `Into` conversion with additional bounds (like having a concrete error but wanting to convert to a trait object), we handle it speficically and provide the same kind of information we give other `?` related errors. ``` error[E0277]: `?` couldn't convert the error: `E: std::error::Error` is not satisfied --> $DIR/bad-question-mark-on-trait-object.rs:5:13 | LL | fn foo() -> Result<(), Box> { | -------------------------------------- required `E: std::error::Error` because of this LL | Ok(bar()?) | ^ the trait `std::error::Error` is not implemented for `E` | = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = note: required for `Box` to implement `From` ``` Avoid talking about `FromResidual` when other more relevant information is being given, particularly from `rust_on_unimplemented`. --- .../traits/fulfillment_errors.rs | 68 ++++++++++++++----- tests/ui/async-await/issue-84841.stderr | 2 - .../async-await/try-on-option-in-async.stderr | 6 -- ...urn-from-residual-sugg-issue-125997.stderr | 6 -- tests/ui/try-trait/bad-interconversion.stderr | 12 ---- .../bad-question-mark-on-trait-object.rs | 26 +++++++ .../bad-question-mark-on-trait-object.stderr | 26 +++++++ tests/ui/try-trait/option-to-result.stderr | 6 -- .../try-on-option-diagnostics.stderr | 8 --- tests/ui/try-trait/try-on-option.stderr | 5 -- .../ui/try-trait/try-operator-on-main.stderr | 3 - 11 files changed, 103 insertions(+), 65 deletions(-) create mode 100644 tests/ui/try-trait/bad-question-mark-on-trait-object.rs create mode 100644 tests/ui/try-trait/bad-question-mark-on-trait-object.stderr diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index a8ee4d61e65e..133d8a88de37 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -192,19 +192,38 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let have_alt_message = message.is_some() || label.is_some(); let is_try_conversion = self.is_try_conversion(span, main_trait_predicate.def_id()); + let is_question_mark = matches!( + root_obligation.cause.code().peel_derives(), + ObligationCauseCode::QuestionMark, + ) && !( + self.tcx.is_diagnostic_item(sym::FromResidual, main_trait_predicate.def_id()) + || self.tcx.is_lang_item(main_trait_predicate.def_id(), LangItem::Try) + ); let is_unsize = self.tcx.is_lang_item(leaf_trait_predicate.def_id(), LangItem::Unsize); + let question_mark_message = "the question mark operation (`?`) implicitly \ + performs a conversion on the error value \ + using the `From` trait"; let (message, notes, append_const_msg) = if is_try_conversion { + // We have a `-> Result<_, E1>` and `gives_E2()?`. ( Some(format!( "`?` couldn't convert the error to `{}`", main_trait_predicate.skip_binder().self_ty(), )), - vec![ - "the question mark operation (`?`) implicitly performs a \ - conversion on the error value using the `From` trait" - .to_owned(), - ], + vec![question_mark_message.to_owned()], + Some(AppendConstMessage::Default), + ) + } else if is_question_mark { + // Similar to the case above, but in this case the conversion is for a + // trait object: `-> Result<_, Box` and `gives_E()?` when + // `E: Error` isn't met. + ( + Some(format!( + "`?` couldn't convert the error: `{main_trait_predicate}` is \ + not satisfied", + )), + vec![question_mark_message.to_owned()], Some(AppendConstMessage::Default), ) } else { @@ -220,8 +239,10 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { &mut long_ty_file, ); - let (err_msg, safe_transmute_explanation) = if self.tcx.is_lang_item(main_trait_predicate.def_id(), LangItem::TransmuteTrait) - { + let (err_msg, safe_transmute_explanation) = if self.tcx.is_lang_item( + main_trait_predicate.def_id(), + LangItem::TransmuteTrait, + ) { // Recompute the safe transmute reason and use that for the error reporting match self.get_safe_transmute_error_and_reason( obligation.clone(), @@ -249,18 +270,22 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { *err.long_ty_path() = long_ty_file; let mut suggested = false; - if is_try_conversion { + if is_try_conversion || is_question_mark { suggested = self.try_conversion_context(&obligation, main_trait_predicate, &mut err); } - if is_try_conversion && let Some(ret_span) = self.return_type_span(&obligation) { - err.span_label( - ret_span, - format!( - "expected `{}` because of this", - main_trait_predicate.skip_binder().self_ty() - ), - ); + if let Some(ret_span) = self.return_type_span(&obligation) { + if is_try_conversion { + err.span_label( + ret_span, + format!( + "expected `{}` because of this", + main_trait_predicate.skip_binder().self_ty() + ), + ); + } else if is_question_mark { + err.span_label(ret_span, format!("required `{main_trait_predicate}` because of this")); + } } if tcx.is_lang_item(leaf_trait_predicate.def_id(), LangItem::Tuple) { @@ -302,10 +327,14 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // If it has a custom `#[rustc_on_unimplemented]` // error message, let's display it as the label! err.span_label(span, s); - if !matches!(leaf_trait_predicate.skip_binder().self_ty().kind(), ty::Param(_)) { + if !matches!(leaf_trait_predicate.skip_binder().self_ty().kind(), ty::Param(_)) // When the self type is a type param We don't need to "the trait // `std::marker::Sized` is not implemented for `T`" as we will point // at the type param with a label to suggest constraining it. + && !self.tcx.is_diagnostic_item(sym::FromResidual, leaf_trait_predicate.def_id()) + // Don't say "the trait `FromResidual>` is + // not implemented for `Result`". + { err.help(explanation); } } else if let Some(custom_explanation) = safe_transmute_explanation { @@ -2035,6 +2064,11 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { return false; } if let &[cand] = &candidates[..] { + if self.tcx.is_diagnostic_item(sym::FromResidual, cand.def_id) + && !self.tcx.features().enabled(sym::try_trait_v2) + { + return false; + } let (desc, mention_castable) = match (cand.self_ty().kind(), trait_pred.self_ty().skip_binder().kind()) { (ty::FnPtr(..), ty::FnDef(..)) => { diff --git a/tests/ui/async-await/issue-84841.stderr b/tests/ui/async-await/issue-84841.stderr index 69c1c882d60a..0d008477310a 100644 --- a/tests/ui/async-await/issue-84841.stderr +++ b/tests/ui/async-await/issue-84841.stderr @@ -17,8 +17,6 @@ LL | | test()?; ... | LL | | } | |_- this function should return `Result` or `Option` to accept `?` - | - = help: the trait `FromResidual<_>` is not implemented for `()` error: aborting due to 2 previous errors diff --git a/tests/ui/async-await/try-on-option-in-async.stderr b/tests/ui/async-await/try-on-option-in-async.stderr index 9e0bb42a697c..332f4d4ec0c2 100644 --- a/tests/ui/async-await/try-on-option-in-async.stderr +++ b/tests/ui/async-await/try-on-option-in-async.stderr @@ -6,8 +6,6 @@ LL | async { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in an async block that returns `{integer}` - | - = help: the trait `FromResidual>` is not implemented for `{integer}` error[E0277]: the `?` operator can only be used in an async closure that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option-in-async.rs:16:10 @@ -20,8 +18,6 @@ LL | | x?; LL | | 22_u32 LL | | }; | |_____- this function should return `Result` or `Option` to accept `?` - | - = help: the trait `FromResidual>` is not implemented for `u32` error[E0277]: the `?` operator can only be used in an async function that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option-in-async.rs:25:6 @@ -34,8 +30,6 @@ LL | | x?; LL | | 22 LL | | } | |_- this function should return `Result` or `Option` to accept `?` - | - = help: the trait `FromResidual>` is not implemented for `u32` error: aborting due to 3 previous errors diff --git a/tests/ui/return/return-from-residual-sugg-issue-125997.stderr b/tests/ui/return/return-from-residual-sugg-issue-125997.stderr index e22f33fd242a..877995dfe126 100644 --- a/tests/ui/return/return-from-residual-sugg-issue-125997.stderr +++ b/tests/ui/return/return-from-residual-sugg-issue-125997.stderr @@ -6,7 +6,6 @@ LL | fn test1() { LL | let mut _file = File::create("foo.txt")?; | ^ cannot use the `?` operator in a function that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn test1() -> Result<(), Box> { @@ -23,7 +22,6 @@ LL | fn test2() { LL | let mut _file = File::create("foo.txt")?; | ^ cannot use the `?` operator in a function that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn test2() -> Result<(), Box> { @@ -41,7 +39,6 @@ LL | fn test4(&self) { LL | let mut _file = File::create("foo.txt")?; | ^ cannot use the `?` operator in a method that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn test4(&self) -> Result<(), Box> { @@ -59,7 +56,6 @@ LL | fn test5(&self) { LL | let mut _file = File::create("foo.txt")?; | ^ cannot use the `?` operator in a method that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn test5(&self) -> Result<(), Box> { @@ -78,7 +74,6 @@ LL | fn main() { LL | let mut _file = File::create("foo.txt")?; | ^ cannot use the `?` operator in a function that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn main() -> Result<(), Box> { @@ -99,7 +94,6 @@ LL | let mut _file = File::create("foo.txt")?; LL | mac!(); | ------ in this macro invocation | - = help: the trait `FromResidual>` is not implemented for `()` = note: this error originates in the macro `mac` (in Nightly builds, run with -Z macro-backtrace for more info) help: consider adding return type | diff --git a/tests/ui/try-trait/bad-interconversion.stderr b/tests/ui/try-trait/bad-interconversion.stderr index 45422be946e8..6df05747f32c 100644 --- a/tests/ui/try-trait/bad-interconversion.stderr +++ b/tests/ui/try-trait/bad-interconversion.stderr @@ -20,9 +20,6 @@ LL | fn option_to_result() -> Result { | -------------------------------------------- this function returns a `Result` LL | Some(3)?; | ^ use `.ok_or(...)?` to provide an error compatible with `Result` - | - = help: the trait `FromResidual>` is not implemented for `Result` - = help: the trait `FromResidual>` is implemented for `Result` error[E0277]: the `?` operator can only be used on `Result`s in a function that returns `Result` --> $DIR/bad-interconversion.rs:15:31 @@ -31,9 +28,6 @@ LL | fn control_flow_to_result() -> Result { | -------------------------------------------------- this function returns a `Result` LL | Ok(ControlFlow::Break(123)?) | ^ this `?` produces `ControlFlow<{integer}, Infallible>`, which is incompatible with `Result` - | - = help: the trait `FromResidual>` is not implemented for `Result` - = help: the trait `FromResidual>` is implemented for `Result` error[E0277]: the `?` operator can only be used on `Option`s, not `Result`s, in a function that returns `Option` --> $DIR/bad-interconversion.rs:20:22 @@ -42,9 +36,6 @@ LL | fn result_to_option() -> Option { | ------------------------------------ this function returns an `Option` LL | Some(Err("hello")?) | ^ use `.ok()?` if you want to discard the `Result` error information - | - = help: the trait `FromResidual>` is not implemented for `Option` - = help: the trait `FromResidual>` is implemented for `Option` error[E0277]: the `?` operator can only be used on `Option`s in a function that returns `Option` --> $DIR/bad-interconversion.rs:25:33 @@ -53,9 +44,6 @@ LL | fn control_flow_to_option() -> Option { | ------------------------------------------ this function returns an `Option` LL | Some(ControlFlow::Break(123)?) | ^ this `?` produces `ControlFlow<{integer}, Infallible>`, which is incompatible with `Option` - | - = help: the trait `FromResidual>` is not implemented for `Option` - = help: the trait `FromResidual>` is implemented for `Option` error[E0277]: the `?` operator can only be used on `ControlFlow`s in a function that returns `ControlFlow` --> $DIR/bad-interconversion.rs:30:39 diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.rs b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs new file mode 100644 index 000000000000..f319610cb3ae --- /dev/null +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs @@ -0,0 +1,26 @@ +struct E; +struct X; + +fn foo() -> Result<(), Box> { //~ NOTE required `E: std::error::Error` because of this + Ok(bar()?) + //~^ ERROR `?` couldn't convert the error: `E: std::error::Error` is not satisfied + //~| NOTE the trait `std::error::Error` is not implemented for `E` + //~| NOTE the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait + //~| NOTE required for `Box` to implement `From` + //~| NOTE in this expansion + //~| NOTE in this expansion + //~| NOTE in this expansion +} +fn bat() -> Result<(), X> { //~ NOTE expected `X` because of this + Ok(bar()?) + //~^ ERROR `?` couldn't convert the error to `X` + //~| NOTE the trait `From` is not implemented for `X` + //~| NOTE this can't be annotated with `?` because it has type `Result<_, E>` + //~| NOTE the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait + //~| NOTE in this expansion + //~| NOTE in this expansion +} +fn bar() -> Result<(), E> { + Err(E) +} +fn main() {} diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr new file mode 100644 index 000000000000..4e7cd1e28896 --- /dev/null +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr @@ -0,0 +1,26 @@ +error[E0277]: `?` couldn't convert the error: `E: std::error::Error` is not satisfied + --> $DIR/bad-question-mark-on-trait-object.rs:5:13 + | +LL | fn foo() -> Result<(), Box> { + | -------------------------------------- required `E: std::error::Error` because of this +LL | Ok(bar()?) + | ^ the trait `std::error::Error` is not implemented for `E` + | + = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait + = note: required for `Box` to implement `From` + +error[E0277]: `?` couldn't convert the error to `X` + --> $DIR/bad-question-mark-on-trait-object.rs:15:13 + | +LL | fn bat() -> Result<(), X> { + | ------------- expected `X` because of this +LL | Ok(bar()?) + | -----^ the trait `From` is not implemented for `X` + | | + | this can't be annotated with `?` because it has type `Result<_, E>` + | + = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0277`. diff --git a/tests/ui/try-trait/option-to-result.stderr b/tests/ui/try-trait/option-to-result.stderr index 1a5a925f92fc..8a4c4707942c 100644 --- a/tests/ui/try-trait/option-to-result.stderr +++ b/tests/ui/try-trait/option-to-result.stderr @@ -6,9 +6,6 @@ LL | fn test_result() -> Result<(),()> { LL | let a:Option<()> = Some(()); LL | a?; | ^ use `.ok_or(...)?` to provide an error compatible with `Result<(), ()>` - | - = help: the trait `FromResidual>` is not implemented for `Result<(), ()>` - = help: the trait `FromResidual>` is implemented for `Result` error[E0277]: the `?` operator can only be used on `Option`s, not `Result`s, in a function that returns `Option` --> $DIR/option-to-result.rs:11:6 @@ -18,9 +15,6 @@ LL | fn test_option() -> Option{ LL | let a:Result = Ok(5); LL | a?; | ^ use `.ok()?` if you want to discard the `Result` error information - | - = help: the trait `FromResidual>` is not implemented for `Option` - = help: the trait `FromResidual>` is implemented for `Option` error: aborting due to 2 previous errors diff --git a/tests/ui/try-trait/try-on-option-diagnostics.stderr b/tests/ui/try-trait/try-on-option-diagnostics.stderr index 9ee540c79fdd..08675e242a35 100644 --- a/tests/ui/try-trait/try-on-option-diagnostics.stderr +++ b/tests/ui/try-trait/try-on-option-diagnostics.stderr @@ -6,8 +6,6 @@ LL | fn a_function() -> u32 { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in a function that returns `u32` - | - = help: the trait `FromResidual>` is not implemented for `u32` error[E0277]: the `?` operator can only be used in a closure that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option-diagnostics.rs:14:10 @@ -17,8 +15,6 @@ LL | let a_closure = || { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in a closure that returns `{integer}` - | - = help: the trait `FromResidual>` is not implemented for `{integer}` error[E0277]: the `?` operator can only be used in a method that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option-diagnostics.rs:26:14 @@ -28,8 +24,6 @@ LL | fn a_method() { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in a method that returns `()` - | - = help: the trait `FromResidual>` is not implemented for `()` error[E0277]: the `?` operator can only be used in a trait method that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option-diagnostics.rs:39:14 @@ -39,8 +33,6 @@ LL | fn a_trait_method() { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in a trait method that returns `()` - | - = help: the trait `FromResidual>` is not implemented for `()` error: aborting due to 4 previous errors diff --git a/tests/ui/try-trait/try-on-option.stderr b/tests/ui/try-trait/try-on-option.stderr index 15d0b28ddc1d..aeb519086d8c 100644 --- a/tests/ui/try-trait/try-on-option.stderr +++ b/tests/ui/try-trait/try-on-option.stderr @@ -6,9 +6,6 @@ LL | fn foo() -> Result { LL | let x: Option = None; LL | x?; | ^ use `.ok_or(...)?` to provide an error compatible with `Result` - | - = help: the trait `FromResidual>` is not implemented for `Result` - = help: the trait `FromResidual>` is implemented for `Result` error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) --> $DIR/try-on-option.rs:11:6 @@ -18,8 +15,6 @@ LL | fn bar() -> u32 { LL | let x: Option = None; LL | x?; | ^ cannot use the `?` operator in a function that returns `u32` - | - = help: the trait `FromResidual>` is not implemented for `u32` error: aborting due to 2 previous errors diff --git a/tests/ui/try-trait/try-operator-on-main.stderr b/tests/ui/try-trait/try-operator-on-main.stderr index 311e8076ed48..9c2526442ab5 100644 --- a/tests/ui/try-trait/try-operator-on-main.stderr +++ b/tests/ui/try-trait/try-operator-on-main.stderr @@ -7,7 +7,6 @@ LL | // error for a `Try` type on a non-`Try` fn LL | std::fs::File::open("foo")?; | ^ cannot use the `?` operator in a function that returns `()` | - = help: the trait `FromResidual>` is not implemented for `()` help: consider adding return type | LL ~ fn main() -> Result<(), Box> { @@ -33,8 +32,6 @@ LL | fn main() { ... LL | ()?; | ^ cannot use the `?` operator in a function that returns `()` - | - = help: the trait `FromResidual<_>` is not implemented for `()` error[E0277]: the trait bound `(): Try` is not satisfied --> $DIR/try-operator-on-main.rs:14:25 From 8ef535e03d8f34c7ad7aab14eea6a73bf4445b4c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Thu, 20 Feb 2025 19:07:39 +0000 Subject: [PATCH 165/255] Point out the type of more expressions on bad `?` --- .../src/error_reporting/traits/fulfillment_errors.rs | 7 +------ tests/ui/try-trait/bad-question-mark-on-trait-object.rs | 1 + .../ui/try-trait/bad-question-mark-on-trait-object.stderr | 6 ++++-- 3 files changed, 6 insertions(+), 8 deletions(-) diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index 133d8a88de37..4004fdd073ce 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -961,14 +961,9 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let Some(typeck) = &self.typeck_results else { return false; }; - let Some((ObligationCauseCode::QuestionMark, Some(y))) = - obligation.cause.code().parent_with_predicate() - else { + let ObligationCauseCode::QuestionMark = obligation.cause.code().peel_derives() else { return false; }; - if !self.tcx.is_diagnostic_item(sym::FromResidual, y.def_id()) { - return false; - } let self_ty = trait_pred.skip_binder().self_ty(); let found_ty = trait_pred.skip_binder().trait_ref.args.get(1).and_then(|a| a.as_type()); diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.rs b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs index f319610cb3ae..9efac78b3d78 100644 --- a/tests/ui/try-trait/bad-question-mark-on-trait-object.rs +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs @@ -7,6 +7,7 @@ fn foo() -> Result<(), Box> { //~ NOTE required `E: std:: //~| NOTE the trait `std::error::Error` is not implemented for `E` //~| NOTE the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait //~| NOTE required for `Box` to implement `From` + //~| NOTE this has type `Result<_, E>` //~| NOTE in this expansion //~| NOTE in this expansion //~| NOTE in this expansion diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr index 4e7cd1e28896..adebc16915d7 100644 --- a/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr @@ -4,13 +4,15 @@ error[E0277]: `?` couldn't convert the error: `E: std::error::Error` is not sati LL | fn foo() -> Result<(), Box> { | -------------------------------------- required `E: std::error::Error` because of this LL | Ok(bar()?) - | ^ the trait `std::error::Error` is not implemented for `E` + | -----^ the trait `std::error::Error` is not implemented for `E` + | | + | this has type `Result<_, E>` | = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = note: required for `Box` to implement `From` error[E0277]: `?` couldn't convert the error to `X` - --> $DIR/bad-question-mark-on-trait-object.rs:15:13 + --> $DIR/bad-question-mark-on-trait-object.rs:16:13 | LL | fn bat() -> Result<(), X> { | ------------- expected `X` because of this From 5112ecb8ca844888c3e2363edc914e12afbaef77 Mon Sep 17 00:00:00 2001 From: riverbl <94326797+riverbl@users.noreply.github.com> Date: Sun, 16 Feb 2025 23:08:24 +0000 Subject: [PATCH 166/255] Stabilise `os_str_display` --- library/std/src/ffi/mod.rs | 2 +- library/std/src/ffi/os_str.rs | 10 ++++------ src/librustdoc/lib.rs | 1 - 3 files changed, 5 insertions(+), 8 deletions(-) diff --git a/library/std/src/ffi/mod.rs b/library/std/src/ffi/mod.rs index 7d7cce09a3f0..860ec3a6be16 100644 --- a/library/std/src/ffi/mod.rs +++ b/library/std/src/ffi/mod.rs @@ -201,5 +201,5 @@ pub use self::c_str::{CStr, CString}; #[doc(inline)] pub use self::os_str::{OsStr, OsString}; -#[unstable(feature = "os_str_display", issue = "120048")] +#[stable(feature = "os_str_display", since = "CURRENT_RUSTC_VERSION")] pub mod os_str; diff --git a/library/std/src/ffi/os_str.rs b/library/std/src/ffi/os_str.rs index c4c8dbccd7a4..f4a02802336d 100644 --- a/library/std/src/ffi/os_str.rs +++ b/library/std/src/ffi/os_str.rs @@ -1204,13 +1204,12 @@ impl OsStr { /// # Examples /// /// ``` - /// #![feature(os_str_display)] /// use std::ffi::OsStr; /// /// let s = OsStr::new("Hello, world!"); /// println!("{}", s.display()); /// ``` - #[unstable(feature = "os_str_display", issue = "120048")] + #[stable(feature = "os_str_display", since = "CURRENT_RUSTC_VERSION")] #[must_use = "this does not display the `OsStr`; \ it returns an object that can be displayed"] #[inline] @@ -1559,7 +1558,6 @@ impl fmt::Debug for OsStr { /// # Examples /// /// ``` -/// #![feature(os_str_display)] /// use std::ffi::OsStr; /// /// let s = OsStr::new("Hello, world!"); @@ -1568,19 +1566,19 @@ impl fmt::Debug for OsStr { /// /// [`Display`]: fmt::Display /// [`format!`]: crate::format -#[unstable(feature = "os_str_display", issue = "120048")] +#[stable(feature = "os_str_display", since = "CURRENT_RUSTC_VERSION")] pub struct Display<'a> { os_str: &'a OsStr, } -#[unstable(feature = "os_str_display", issue = "120048")] +#[stable(feature = "os_str_display", since = "CURRENT_RUSTC_VERSION")] impl fmt::Debug for Display<'_> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Debug::fmt(&self.os_str, f) } } -#[unstable(feature = "os_str_display", issue = "120048")] +#[stable(feature = "os_str_display", since = "CURRENT_RUSTC_VERSION")] impl fmt::Display for Display<'_> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(&self.os_str.inner, f) diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs index e4acbcf2c626..1f2f8f7d33a4 100644 --- a/src/librustdoc/lib.rs +++ b/src/librustdoc/lib.rs @@ -13,7 +13,6 @@ #![feature(iter_intersperse)] #![feature(let_chains)] #![feature(never_type)] -#![feature(os_str_display)] #![feature(round_char_boundary)] #![feature(test)] #![feature(type_alias_impl_trait)] From 7ba3d7b54e7688f6f1a0fd22fe274ee7b06fea3e Mon Sep 17 00:00:00 2001 From: Zachary S Date: Sat, 25 Jan 2025 20:15:24 -0600 Subject: [PATCH 167/255] Remove `BackendRepr::Uninhabited`, replaced with an `uninhabited: bool` field in `LayoutData`. Also update comments that refered to BackendRepr::Uninhabited. --- compiler/rustc_abi/src/callconv.rs | 2 -- compiler/rustc_abi/src/layout.rs | 23 ++++++------ compiler/rustc_abi/src/lib.rs | 35 +++++++++---------- .../src/value_and_place.rs | 4 +-- .../rustc_codegen_gcc/src/intrinsic/mod.rs | 2 +- compiler/rustc_codegen_gcc/src/type_of.rs | 13 +++---- compiler/rustc_codegen_llvm/src/intrinsic.rs | 2 +- compiler/rustc_codegen_llvm/src/type_of.rs | 13 +++---- compiler/rustc_codegen_ssa/src/mir/operand.rs | 4 +-- .../rustc_const_eval/src/interpret/operand.rs | 2 +- .../src/interpret/validity.rs | 8 ++--- .../src/util/check_validity_requirement.rs | 16 +++++---- compiler/rustc_middle/src/ty/layout.rs | 3 +- compiler/rustc_mir_transform/src/gvn.rs | 5 ++- .../rustc_smir/src/rustc_smir/convert/abi.rs | 1 - .../rustc_target/src/callconv/loongarch.rs | 2 +- compiler/rustc_target/src/callconv/mod.rs | 3 +- compiler/rustc_target/src/callconv/riscv.rs | 2 +- compiler/rustc_target/src/callconv/x86.rs | 4 +-- compiler/rustc_target/src/callconv/x86_64.rs | 2 -- .../rustc_target/src/callconv/x86_win64.rs | 2 +- compiler/rustc_ty_utils/src/abi.rs | 4 +-- compiler/rustc_ty_utils/src/layout.rs | 21 +++++------ .../rustc_ty_utils/src/layout/invariant.rs | 15 ++++---- compiler/stable_mir/src/abi.rs | 6 +--- .../rust-analyzer/crates/hir-ty/src/layout.rs | 12 +++---- 26 files changed, 93 insertions(+), 113 deletions(-) diff --git a/compiler/rustc_abi/src/callconv.rs b/compiler/rustc_abi/src/callconv.rs index 9fb70b80c9ef..4529ab8058e9 100644 --- a/compiler/rustc_abi/src/callconv.rs +++ b/compiler/rustc_abi/src/callconv.rs @@ -65,8 +65,6 @@ impl<'a, Ty> TyAndLayout<'a, Ty> { Ty: TyAbiInterface<'a, C> + Copy, { match self.backend_repr { - BackendRepr::Uninhabited => Err(Heterogeneous), - // The primitive for this algorithm. BackendRepr::Scalar(scalar) => { let kind = match scalar.primitive() { diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index 45cd0b517f6c..53243266f992 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -130,6 +130,7 @@ impl LayoutCalculator { }, backend_repr: BackendRepr::ScalarPair(a, b), largest_niche, + uninhabited: false, align, size, max_repr_align: None, @@ -221,8 +222,9 @@ impl LayoutCalculator { LayoutData { variants: Variants::Empty, fields: FieldsShape::Primitive, - backend_repr: BackendRepr::Uninhabited, + backend_repr: BackendRepr::Memory { sized: true }, largest_niche: None, + uninhabited: true, align: dl.i8_align, size: Size::ZERO, max_repr_align: None, @@ -400,6 +402,7 @@ impl LayoutCalculator { fields: FieldsShape::Union(union_field_count), backend_repr: abi, largest_niche: None, + uninhabited: false, align, size: size.align_to(align.abi), max_repr_align, @@ -447,7 +450,6 @@ impl LayoutCalculator { Scalar::Union { .. } => {} }; match &mut st.backend_repr { - BackendRepr::Uninhabited => {} BackendRepr::Scalar(scalar) => hide_niches(scalar), BackendRepr::ScalarPair(a, b) => { hide_niches(a); @@ -639,9 +641,8 @@ impl LayoutCalculator { let same_size = size == variant_layouts[largest_variant_index].size; let same_align = align == variant_layouts[largest_variant_index].align; - let abi = if variant_layouts.iter().all(|v| v.is_uninhabited()) { - BackendRepr::Uninhabited - } else if same_size && same_align && others_zst { + let uninhabited = variant_layouts.iter().all(|v| v.is_uninhabited()); + let abi = if same_size && same_align && others_zst { match variant_layouts[largest_variant_index].backend_repr { // When the total alignment and size match, we can use the // same ABI as the scalar variant with the reserved niche. @@ -683,6 +684,7 @@ impl LayoutCalculator { }, backend_repr: abi, largest_niche, + uninhabited, size, align, max_repr_align, @@ -853,9 +855,8 @@ impl LayoutCalculator { }; let mut abi = BackendRepr::Memory { sized: true }; - if layout_variants.iter().all(|v| v.is_uninhabited()) { - abi = BackendRepr::Uninhabited; - } else if tag.size(dl) == size { + let uninhabited = layout_variants.iter().all(|v| v.is_uninhabited()); + if tag.size(dl) == size { // Make sure we only use scalar layout when the enum is entirely its // own tag (i.e. it has no padding nor any non-ZST variant fields). abi = BackendRepr::Scalar(tag); @@ -995,6 +996,7 @@ impl LayoutCalculator { memory_index: [0].into(), }, largest_niche, + uninhabited, backend_repr: abi, align, size, @@ -1355,9 +1357,7 @@ impl LayoutCalculator { _ => {} } } - if fields.iter().any(|f| f.is_uninhabited()) { - abi = BackendRepr::Uninhabited; - } + let uninhabited = fields.iter().any(|f| f.is_uninhabited()); let unadjusted_abi_align = if repr.transparent() { match layout_of_single_non_zst_field { @@ -1378,6 +1378,7 @@ impl LayoutCalculator { fields: FieldsShape::Arbitrary { offsets, memory_index }, backend_repr: abi, largest_niche, + uninhabited, align, size, max_repr_align, diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index dbb4bed5cdd9..14a8a5792004 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1404,7 +1404,6 @@ impl AddressSpace { #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug)] #[cfg_attr(feature = "nightly", derive(HashStable_Generic))] pub enum BackendRepr { - Uninhabited, Scalar(Scalar), ScalarPair(Scalar, Scalar), Vector { @@ -1423,10 +1422,9 @@ impl BackendRepr { #[inline] pub fn is_unsized(&self) -> bool { match *self { - BackendRepr::Uninhabited - | BackendRepr::Scalar(_) - | BackendRepr::ScalarPair(..) - | BackendRepr::Vector { .. } => false, + BackendRepr::Scalar(_) | BackendRepr::ScalarPair(..) | BackendRepr::Vector { .. } => { + false + } BackendRepr::Memory { sized } => !sized, } } @@ -1445,12 +1443,6 @@ impl BackendRepr { } } - /// Returns `true` if this is an uninhabited type - #[inline] - pub fn is_uninhabited(&self) -> bool { - matches!(*self, BackendRepr::Uninhabited) - } - /// Returns `true` if this is a scalar type #[inline] pub fn is_scalar(&self) -> bool { @@ -1471,7 +1463,7 @@ impl BackendRepr { BackendRepr::Vector { element, count } => { cx.data_layout().vector_align(element.size(cx) * count) } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } => return None, + BackendRepr::Memory { .. } => return None, }) } @@ -1492,7 +1484,7 @@ impl BackendRepr { // to make the size a multiple of align (e.g. for vectors of size 3). (element.size(cx) * count).align_to(self.inherent_align(cx)?.abi) } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } => return None, + BackendRepr::Memory { .. } => return None, }) } @@ -1506,9 +1498,7 @@ impl BackendRepr { BackendRepr::Vector { element, count } => { BackendRepr::Vector { element: element.to_union(), count } } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } => { - BackendRepr::Memory { sized: true } - } + BackendRepr::Memory { .. } => BackendRepr::Memory { sized: true }, } } @@ -1704,6 +1694,11 @@ pub struct LayoutData { /// The leaf scalar with the largest number of invalid values /// (i.e. outside of its `valid_range`), if it exists. pub largest_niche: Option, + /// Is this type known to be uninhabted? + /// + /// This is separate from BackendRepr, because an uninhabited return type may require special + /// consideration based on its size or other attributes. + pub uninhabited: bool, pub align: AbiAndPrefAlign, pub size: Size, @@ -1735,14 +1730,14 @@ impl LayoutData { /// Returns `true` if this is an aggregate type (including a ScalarPair!) pub fn is_aggregate(&self) -> bool { match self.backend_repr { - BackendRepr::Uninhabited | BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => false, + BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => false, BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => true, } } /// Returns `true` if this is an uninhabited type pub fn is_uninhabited(&self) -> bool { - self.backend_repr.is_uninhabited() + self.uninhabited } pub fn scalar(cx: &C, scalar: Scalar) -> Self { @@ -1778,6 +1773,7 @@ impl LayoutData { fields: FieldsShape::Primitive, backend_repr: BackendRepr::Scalar(scalar), largest_niche, + uninhabited: false, size, align, max_repr_align: None, @@ -1802,6 +1798,7 @@ where backend_repr, fields, largest_niche, + uninhabited, variants, max_repr_align, unadjusted_abi_align, @@ -1813,6 +1810,7 @@ where .field("abi", backend_repr) .field("fields", fields) .field("largest_niche", largest_niche) + .field("uninhabited", uninhabited) .field("variants", variants) .field("max_repr_align", max_repr_align) .field("unadjusted_abi_align", unadjusted_abi_align) @@ -1877,7 +1875,6 @@ impl LayoutData { BackendRepr::Scalar(_) | BackendRepr::ScalarPair(..) | BackendRepr::Vector { .. } => { false } - BackendRepr::Uninhabited => self.size.bytes() == 0, BackendRepr::Memory { sized } => sized && self.size.bytes() == 0, } } diff --git a/compiler/rustc_codegen_cranelift/src/value_and_place.rs b/compiler/rustc_codegen_cranelift/src/value_and_place.rs index a9b8e1bd3935..1b3f86c8405d 100644 --- a/compiler/rustc_codegen_cranelift/src/value_and_place.rs +++ b/compiler/rustc_codegen_cranelift/src/value_and_place.rs @@ -638,9 +638,7 @@ impl<'tcx> CPlace<'tcx> { } CPlaceInner::Addr(_, Some(_)) => bug!("Can't write value to unsized place {:?}", self), CPlaceInner::Addr(to_ptr, None) => { - if dst_layout.size == Size::ZERO - || dst_layout.backend_repr == BackendRepr::Uninhabited - { + if dst_layout.size == Size::ZERO { return; } diff --git a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs index 5322b731d8bb..433868e238a4 100644 --- a/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs +++ b/compiler/rustc_codegen_gcc/src/intrinsic/mod.rs @@ -315,7 +315,7 @@ impl<'a, 'gcc, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'a, 'gcc, 'tc let layout = self.layout_of(tp_ty).layout; let _use_integer_compare = match layout.backend_repr() { Scalar(_) | ScalarPair(_, _) => true, - Uninhabited | Vector { .. } => false, + Vector { .. } => false, Memory { .. } => { // For rusty ABIs, small aggregates are actually passed // as `RegKind::Integer` (see `FnAbi::adjust_for_abi`), diff --git a/compiler/rustc_codegen_gcc/src/type_of.rs b/compiler/rustc_codegen_gcc/src/type_of.rs index 8b8b54753e7f..bac4fc51300a 100644 --- a/compiler/rustc_codegen_gcc/src/type_of.rs +++ b/compiler/rustc_codegen_gcc/src/type_of.rs @@ -84,7 +84,7 @@ fn uncached_gcc_type<'gcc, 'tcx>( false, ); } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } => {} + BackendRepr::Memory { .. } => {} } let name = match *layout.ty.kind() { @@ -179,19 +179,16 @@ impl<'tcx> LayoutGccExt<'tcx> for TyAndLayout<'tcx> { fn is_gcc_immediate(&self) -> bool { match self.backend_repr { BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => true, - BackendRepr::ScalarPair(..) | BackendRepr::Uninhabited | BackendRepr::Memory { .. } => { - false - } + BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => false, } } fn is_gcc_scalar_pair(&self) -> bool { match self.backend_repr { BackendRepr::ScalarPair(..) => true, - BackendRepr::Uninhabited - | BackendRepr::Scalar(_) - | BackendRepr::Vector { .. } - | BackendRepr::Memory { .. } => false, + BackendRepr::Scalar(_) | BackendRepr::Vector { .. } | BackendRepr::Memory { .. } => { + false + } } } diff --git a/compiler/rustc_codegen_llvm/src/intrinsic.rs b/compiler/rustc_codegen_llvm/src/intrinsic.rs index 7e1a9d361e6f..f68365f6c69b 100644 --- a/compiler/rustc_codegen_llvm/src/intrinsic.rs +++ b/compiler/rustc_codegen_llvm/src/intrinsic.rs @@ -476,7 +476,7 @@ impl<'ll, 'tcx> IntrinsicCallBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> { let layout = self.layout_of(tp_ty).layout; let use_integer_compare = match layout.backend_repr() { Scalar(_) | ScalarPair(_, _) => true, - Uninhabited | Vector { .. } => false, + Vector { .. } => false, Memory { .. } => { // For rusty ABIs, small aggregates are actually passed // as `RegKind::Integer` (see `FnAbi::adjust_for_abi`), diff --git a/compiler/rustc_codegen_llvm/src/type_of.rs b/compiler/rustc_codegen_llvm/src/type_of.rs index b0b6da869da6..ba01fbff3853 100644 --- a/compiler/rustc_codegen_llvm/src/type_of.rs +++ b/compiler/rustc_codegen_llvm/src/type_of.rs @@ -23,7 +23,7 @@ fn uncached_llvm_type<'a, 'tcx>( let element = layout.scalar_llvm_type_at(cx, element); return cx.type_vector(element, count); } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } | BackendRepr::ScalarPair(..) => {} + BackendRepr::Memory { .. } | BackendRepr::ScalarPair(..) => {} } let name = match layout.ty.kind() { @@ -172,19 +172,16 @@ impl<'tcx> LayoutLlvmExt<'tcx> for TyAndLayout<'tcx> { fn is_llvm_immediate(&self) -> bool { match self.backend_repr { BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => true, - BackendRepr::ScalarPair(..) | BackendRepr::Uninhabited | BackendRepr::Memory { .. } => { - false - } + BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => false, } } fn is_llvm_scalar_pair(&self) -> bool { match self.backend_repr { BackendRepr::ScalarPair(..) => true, - BackendRepr::Uninhabited - | BackendRepr::Scalar(_) - | BackendRepr::Vector { .. } - | BackendRepr::Memory { .. } => false, + BackendRepr::Scalar(_) | BackendRepr::Vector { .. } | BackendRepr::Memory { .. } => { + false + } } } diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index 958a52a2cb1d..faf1300e4731 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -422,9 +422,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { See ", ); } - BackendRepr::Uninhabited - | BackendRepr::ScalarPair(_, _) - | BackendRepr::Memory { sized: false } => bug!(), + BackendRepr::ScalarPair(_, _) | BackendRepr::Memory { sized: false } => bug!(), }) }; diff --git a/compiler/rustc_const_eval/src/interpret/operand.rs b/compiler/rustc_const_eval/src/interpret/operand.rs index 5d905cff1f21..36da9037e43d 100644 --- a/compiler/rustc_const_eval/src/interpret/operand.rs +++ b/compiler/rustc_const_eval/src/interpret/operand.rs @@ -385,7 +385,7 @@ impl<'tcx, Prov: Provenance> ImmTy<'tcx, Prov> { (Immediate::Uninit, _) => Immediate::Uninit, // If the field is uninhabited, we can forget the data (can happen in ConstProp). // `enum S { A(!), B, C }` is an example of an enum with Scalar layout that - // has an `Uninhabited` variant, which means this case is possible. + // has an uninhabited variant, which means this case is possible. _ if layout.is_uninhabited() => Immediate::Uninit, // the field contains no information, can be left uninit // (Scalar/ScalarPair can contain even aligned ZST, not just 1-ZST) diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 0ac34f4633b5..3667cc84d708 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -1274,11 +1274,11 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValueVisitor<'tcx, M> for ValidityVisitor<'rt, // FIXME: We could avoid some redundant checks here. For newtypes wrapping // scalars, we do the same check on every "level" (e.g., first we check // MyNewtype and then the scalar in there). + if val.layout.is_uninhabited() { + let ty = val.layout.ty; + throw_validation_failure!(self.path, UninhabitedVal { ty }); + } match val.layout.backend_repr { - BackendRepr::Uninhabited => { - let ty = val.layout.ty; - throw_validation_failure!(self.path, UninhabitedVal { ty }); - } BackendRepr::Scalar(scalar_layout) => { if !scalar_layout.is_uninit_valid() { // There is something to check here. diff --git a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs index 79baf91c3ce6..6426bca2332d 100644 --- a/compiler/rustc_const_eval/src/util/check_validity_requirement.rs +++ b/compiler/rustc_const_eval/src/util/check_validity_requirement.rs @@ -111,13 +111,15 @@ fn check_validity_requirement_lax<'tcx>( }; // Check the ABI. - let valid = match this.backend_repr { - BackendRepr::Uninhabited => false, // definitely UB - BackendRepr::Scalar(s) => scalar_allows_raw_init(s), - BackendRepr::ScalarPair(s1, s2) => scalar_allows_raw_init(s1) && scalar_allows_raw_init(s2), - BackendRepr::Vector { element: s, count } => count == 0 || scalar_allows_raw_init(s), - BackendRepr::Memory { .. } => true, // Fields are checked below. - }; + let valid = !this.is_uninhabited() // definitely UB if uninhabited + && match this.backend_repr { + BackendRepr::Scalar(s) => scalar_allows_raw_init(s), + BackendRepr::ScalarPair(s1, s2) => { + scalar_allows_raw_init(s1) && scalar_allows_raw_init(s2) + } + BackendRepr::Vector { element: s, count } => count == 0 || scalar_allows_raw_init(s), + BackendRepr::Memory { .. } => true, // Fields are checked below. + }; if !valid { // This is definitely not okay. return Ok(false); diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs index 19fa83235749..eb14ed20fbac 100644 --- a/compiler/rustc_middle/src/ty/layout.rs +++ b/compiler/rustc_middle/src/ty/layout.rs @@ -794,8 +794,9 @@ where Some(fields) => FieldsShape::Union(fields), None => FieldsShape::Arbitrary { offsets: IndexVec::new(), memory_index: IndexVec::new() }, }, - backend_repr: BackendRepr::Uninhabited, + backend_repr: BackendRepr::Memory { sized: true }, largest_niche: None, + uninhabited: true, align: tcx.data_layout.i8_align, size: Size::ZERO, max_repr_align: None, diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index 77a3854ebdef..2f8a30501999 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -1558,8 +1558,11 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { return true; }; + if layout.uninhabited { + return true; + } + match layout.backend_repr { - BackendRepr::Uninhabited => true, BackendRepr::Scalar(a) => !a.is_always_valid(&self.ecx), BackendRepr::ScalarPair(a, b) => { !a.is_always_valid(&self.ecx) || !b.is_always_valid(&self.ecx) diff --git a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs index fb2e838cdc99..a627e0e69b62 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/abi.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/abi.rs @@ -202,7 +202,6 @@ impl<'tcx> Stable<'tcx> for rustc_abi::BackendRepr { fn stable(&self, tables: &mut Tables<'_>) -> Self::T { match *self { - rustc_abi::BackendRepr::Uninhabited => ValueAbi::Uninhabited, rustc_abi::BackendRepr::Scalar(scalar) => ValueAbi::Scalar(scalar.stable(tables)), rustc_abi::BackendRepr::ScalarPair(first, second) => { ValueAbi::ScalarPair(first.stable(tables), second.stable(tables)) diff --git a/compiler/rustc_target/src/callconv/loongarch.rs b/compiler/rustc_target/src/callconv/loongarch.rs index 47566bde6b4a..3fa67c624a7b 100644 --- a/compiler/rustc_target/src/callconv/loongarch.rs +++ b/compiler/rustc_target/src/callconv/loongarch.rs @@ -80,7 +80,7 @@ where } } }, - BackendRepr::Vector { .. } | BackendRepr::Uninhabited => return Err(CannotUseFpConv), + BackendRepr::Vector { .. } => return Err(CannotUseFpConv), BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => match arg_layout.fields { FieldsShape::Primitive => { unreachable!("aggregates can't have `FieldsShape::Primitive`") diff --git a/compiler/rustc_target/src/callconv/mod.rs b/compiler/rustc_target/src/callconv/mod.rs index c2a176facdfa..e5f986269ddc 100644 --- a/compiler/rustc_target/src/callconv/mod.rs +++ b/compiler/rustc_target/src/callconv/mod.rs @@ -38,7 +38,7 @@ mod xtensa; pub enum PassMode { /// Ignore the argument. /// - /// The argument is either uninhabited or a ZST. + /// The argument is a ZST. Ignore, /// Pass the argument directly. /// @@ -350,7 +350,6 @@ impl<'a, Ty> ArgAbi<'a, Ty> { scalar_attrs: impl Fn(&TyAndLayout<'a, Ty>, Scalar, Size) -> ArgAttributes, ) -> Self { let mode = match layout.backend_repr { - BackendRepr::Uninhabited => PassMode::Ignore, BackendRepr::Scalar(scalar) => { PassMode::Direct(scalar_attrs(&layout, scalar, Size::ZERO)) } diff --git a/compiler/rustc_target/src/callconv/riscv.rs b/compiler/rustc_target/src/callconv/riscv.rs index 265ae20f9919..785175229b03 100644 --- a/compiler/rustc_target/src/callconv/riscv.rs +++ b/compiler/rustc_target/src/callconv/riscv.rs @@ -86,7 +86,7 @@ where } } }, - BackendRepr::Vector { .. } | BackendRepr::Uninhabited => return Err(CannotUseFpConv), + BackendRepr::Vector { .. } => return Err(CannotUseFpConv), BackendRepr::ScalarPair(..) | BackendRepr::Memory { .. } => match arg_layout.fields { FieldsShape::Primitive => { unreachable!("aggregates can't have `FieldsShape::Primitive`") diff --git a/compiler/rustc_target/src/callconv/x86.rs b/compiler/rustc_target/src/callconv/x86.rs index 5f4f4cd57f65..7e5aab0201b6 100644 --- a/compiler/rustc_target/src/callconv/x86.rs +++ b/compiler/rustc_target/src/callconv/x86.rs @@ -108,9 +108,7 @@ where Ty: TyAbiInterface<'a, C> + Copy, { match layout.backend_repr { - BackendRepr::Uninhabited - | BackendRepr::Scalar(_) - | BackendRepr::ScalarPair(..) => false, + BackendRepr::Scalar(_) | BackendRepr::ScalarPair(..) => false, BackendRepr::Vector { .. } => true, BackendRepr::Memory { .. } => { for i in 0..layout.fields.count() { diff --git a/compiler/rustc_target/src/callconv/x86_64.rs b/compiler/rustc_target/src/callconv/x86_64.rs index b15d82c26dac..ab306e202396 100644 --- a/compiler/rustc_target/src/callconv/x86_64.rs +++ b/compiler/rustc_target/src/callconv/x86_64.rs @@ -51,8 +51,6 @@ where } let mut c = match layout.backend_repr { - BackendRepr::Uninhabited => return Ok(()), - BackendRepr::Scalar(scalar) => match scalar.primitive() { Primitive::Int(..) | Primitive::Pointer(_) => Class::Int, Primitive::Float(_) => Class::Sse, diff --git a/compiler/rustc_target/src/callconv/x86_win64.rs b/compiler/rustc_target/src/callconv/x86_win64.rs index 2ef5127de04a..4d99a9f9ba06 100644 --- a/compiler/rustc_target/src/callconv/x86_win64.rs +++ b/compiler/rustc_target/src/callconv/x86_win64.rs @@ -8,7 +8,7 @@ use crate::spec::{HasTargetSpec, RustcAbi}; pub(crate) fn compute_abi_info(cx: &impl HasTargetSpec, fn_abi: &mut FnAbi<'_, Ty>) { let fixup = |a: &mut ArgAbi<'_, Ty>, is_ret: bool| { match a.layout.backend_repr { - BackendRepr::Uninhabited | BackendRepr::Memory { sized: false } => {} + BackendRepr::Memory { sized: false } => {} BackendRepr::ScalarPair(..) | BackendRepr::Memory { sized: true } => { match a.layout.size.bits() { 8 => a.cast_to(Reg::i8()), diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index c5d2d0afbfad..2d20ef3d690d 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -472,9 +472,7 @@ fn fn_abi_sanity_check<'tcx>( // `layout.backend_repr` and ignore everything else. We should just reject //`Aggregate` entirely here, but some targets need to be fixed first. match arg.layout.backend_repr { - BackendRepr::Uninhabited - | BackendRepr::Scalar(_) - | BackendRepr::Vector { .. } => {} + BackendRepr::Scalar(_) | BackendRepr::Vector { .. } => {} BackendRepr::ScalarPair(..) => { panic!("`PassMode::Direct` used for ScalarPair type {}", arg.layout.ty) } diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index 556512e0236e..b6a14d147cad 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -348,19 +348,17 @@ fn layout_of_uncached<'tcx>( .checked_mul(count, dl) .ok_or_else(|| error(cx, LayoutError::SizeOverflow(ty)))?; - let abi = if count != 0 && ty.is_privately_uninhabited(tcx, cx.typing_env) { - BackendRepr::Uninhabited - } else { - BackendRepr::Memory { sized: true } - }; + let abi = BackendRepr::Memory { sized: true }; let largest_niche = if count != 0 { element.largest_niche } else { None }; + let uninhabited = if count != 0 { element.uninhabited } else { false }; tcx.mk_layout(LayoutData { variants: Variants::Single { index: FIRST_VARIANT }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr: abi, largest_niche, + uninhabited, align: element.align, size, max_repr_align: None, @@ -375,6 +373,7 @@ fn layout_of_uncached<'tcx>( fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, + uninhabited: false, align: element.align, size: Size::ZERO, max_repr_align: None, @@ -390,6 +389,7 @@ fn layout_of_uncached<'tcx>( fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, + uninhabited: false, align: dl.i8_align, size: Size::ZERO, max_repr_align: None, @@ -555,6 +555,7 @@ fn layout_of_uncached<'tcx>( fields, backend_repr: abi, largest_niche: e_ly.largest_niche, + uninhabited: false, size, align, max_repr_align: None, @@ -1014,13 +1015,8 @@ fn coroutine_layout<'tcx>( size = size.align_to(align.abi); - let abi = if prefix.backend_repr.is_uninhabited() - || variants.iter().all(|v| v.backend_repr.is_uninhabited()) - { - BackendRepr::Uninhabited - } else { - BackendRepr::Memory { sized: true } - }; + let uninhabited = prefix.uninhabited || variants.iter().all(|v| v.is_uninhabited()); + let abi = BackendRepr::Memory { sized: true }; // this is similar to how ReprOptions populates its field_shuffle_seed let def_hash = tcx.def_path_hash(def_id).0.to_smaller_hash(); @@ -1041,6 +1037,7 @@ fn coroutine_layout<'tcx>( // See , . // FIXME: Remove when is implemented and aliased coroutine fields are wrapped in `UnsafePinned`. largest_niche: None, + uninhabited, size, align, max_repr_align: None, diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index 8d5403ed3246..5ea6716c5ca1 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -10,7 +10,11 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou // Type-level uninhabitedness should always imply ABI uninhabitedness. if layout.ty.is_privately_uninhabited(tcx, cx.typing_env) { - assert!(layout.is_uninhabited()); + assert!( + layout.is_uninhabited(), + "{:?} is type-level uninhabited but not ABI-uninhabited?", + layout.ty + ); } if layout.size.bytes() % layout.align.abi.bytes() != 0 { @@ -71,7 +75,7 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou let Some((align, size)) = align.zip(size) else { assert_matches!( layout.layout.backend_repr(), - BackendRepr::Uninhabited | BackendRepr::Memory { .. }, + BackendRepr::Memory { .. }, "ABI unexpectedly missing alignment and/or size in {layout:#?}" ); return; @@ -235,7 +239,7 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou assert!(align >= element.align(cx).abi); // just sanity-checking `vector_align`. // FIXME: Do some kind of check of the inner type, like for Scalar and ScalarPair. } - BackendRepr::Uninhabited | BackendRepr::Memory { .. } => {} // Nothing to check. + BackendRepr::Memory { .. } => {} // Nothing to check. } } @@ -291,8 +295,8 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou || variant.is_uninhabited() { // These are never actually accessed anyway, so we can skip the coherence check - // for them. They also fail that check, since they have - // `Aggregate`/`Uninhabited` ABI even when the main type is + // for them. They also fail that check, since they may have + // a different ABI even when the main type is // `Scalar`/`ScalarPair`. (Note that sometimes, variants with fields have size // 0, and sometimes, variants without fields have non-0 size.) continue; @@ -306,7 +310,6 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou (BackendRepr::ScalarPair(a1, b1), BackendRepr::ScalarPair(a2, b2)) => { scalar_coherent(a1, a2) && scalar_coherent(b1, b2) } - (BackendRepr::Uninhabited, _) => true, (BackendRepr::Memory { .. }, _) => true, _ => false, }; diff --git a/compiler/stable_mir/src/abi.rs b/compiler/stable_mir/src/abi.rs index 861b6692b536..091f3e1a95e9 100644 --- a/compiler/stable_mir/src/abi.rs +++ b/compiler/stable_mir/src/abi.rs @@ -227,7 +227,6 @@ pub enum TagEncoding { /// in terms of categories of C types there are ABI rules for. #[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize)] pub enum ValueAbi { - Uninhabited, Scalar(Scalar), ScalarPair(Scalar, Scalar), Vector { @@ -244,10 +243,7 @@ impl ValueAbi { /// Returns `true` if the layout corresponds to an unsized type. pub fn is_unsized(&self) -> bool { match *self { - ValueAbi::Uninhabited - | ValueAbi::Scalar(_) - | ValueAbi::ScalarPair(..) - | ValueAbi::Vector { .. } => false, + ValueAbi::Scalar(_) | ValueAbi::ScalarPair(..) | ValueAbi::Vector { .. } => false, ValueAbi::Aggregate { sized } => !sized, } } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs index b6f7c44c2aee..f5a7b6581230 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs @@ -194,6 +194,7 @@ fn layout_of_simd_ty( fields, backend_repr: BackendRepr::Vector { element: e_abi, count: e_len }, largest_niche: e_ly.largest_niche, + uninhabited: false, size, align, max_repr_align: None, @@ -297,20 +298,17 @@ pub fn layout_of_ty_query( .checked_mul(count, dl) .ok_or(LayoutError::BadCalc(LayoutCalculatorError::SizeOverflow))?; - let backend_repr = - if count != 0 && matches!(element.backend_repr, BackendRepr::Uninhabited) { - BackendRepr::Uninhabited - } else { - BackendRepr::Memory { sized: true } - }; + let backend_repr = BackendRepr::Memory { sized: true }; let largest_niche = if count != 0 { element.largest_niche } else { None }; + let uninhabited = if count != 0 { element.uninhabited } else { false }; Layout { variants: Variants::Single { index: struct_variant_idx() }, fields: FieldsShape::Array { stride: element.size, count }, backend_repr, largest_niche, + uninhabited, align: element.align, size, max_repr_align: None, @@ -325,6 +323,7 @@ pub fn layout_of_ty_query( fields: FieldsShape::Array { stride: element.size, count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, + uninhabited: false, align: element.align, size: Size::ZERO, max_repr_align: None, @@ -337,6 +336,7 @@ pub fn layout_of_ty_query( fields: FieldsShape::Array { stride: Size::from_bytes(1), count: 0 }, backend_repr: BackendRepr::Memory { sized: false }, largest_niche: None, + uninhabited: false, align: dl.i8_align, size: Size::ZERO, max_repr_align: None, From c33fb5ae854e8ac26d75e72b7cb31519730f51d6 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Sat, 25 Jan 2025 21:28:54 -0600 Subject: [PATCH 168/255] Update ui tests with `LayoutData { uninhabited: ... }` etc --- tests/ui/abi/c-zst.aarch64-darwin.stderr | 2 + tests/ui/abi/c-zst.powerpc-linux.stderr | 2 + tests/ui/abi/c-zst.s390x-linux.stderr | 2 + tests/ui/abi/c-zst.sparc64-linux.stderr | 2 + tests/ui/abi/c-zst.x86_64-linux.stderr | 2 + .../ui/abi/c-zst.x86_64-pc-windows-gnu.stderr | 2 + tests/ui/abi/debug.stderr | 24 +++++++++ tests/ui/abi/sysv64-zst.stderr | 2 + tests/ui/layout/debug.stderr | 22 +++++++- tests/ui/layout/hexagon-enum.stderr | 10 ++++ ...-scalarpair-payload-might-be-uninit.stderr | 17 +++++++ .../issue-96185-overaligned-enum.stderr | 6 +++ tests/ui/layout/thumb-enum.stderr | 10 ++++ .../layout/zero-sized-array-enum-niche.stderr | 13 +++++ ...-variants.aarch64-unknown-linux-gnu.stderr | 50 +++++++++++++++++-- ...-c-dead-variants.armebv7r-none-eabi.stderr | 50 +++++++++++++++++-- ...-dead-variants.i686-pc-windows-msvc.stderr | 50 +++++++++++++++++-- ...d-variants.x86_64-unknown-linux-gnu.stderr | 50 +++++++++++++++++-- tests/ui/repr/repr-c-int-dead-variants.stderr | 50 +++++++++++++++++-- .../type/pattern_types/range_patterns.stderr | 9 ++++ 20 files changed, 349 insertions(+), 26 deletions(-) diff --git a/tests/ui/abi/c-zst.aarch64-darwin.stderr b/tests/ui/abi/c-zst.aarch64-darwin.stderr index c8f7d0a517c4..57cc48aa9cf4 100644 --- a/tests/ui/abi/c-zst.aarch64-darwin.stderr +++ b/tests/ui/abi/c-zst.aarch64-darwin.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -45,6 +46,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/c-zst.powerpc-linux.stderr b/tests/ui/abi/c-zst.powerpc-linux.stderr index 1015f7d88988..673801767300 100644 --- a/tests/ui/abi/c-zst.powerpc-linux.stderr +++ b/tests/ui/abi/c-zst.powerpc-linux.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -56,6 +57,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/c-zst.s390x-linux.stderr b/tests/ui/abi/c-zst.s390x-linux.stderr index 1015f7d88988..673801767300 100644 --- a/tests/ui/abi/c-zst.s390x-linux.stderr +++ b/tests/ui/abi/c-zst.s390x-linux.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -56,6 +57,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/c-zst.sparc64-linux.stderr b/tests/ui/abi/c-zst.sparc64-linux.stderr index 1015f7d88988..673801767300 100644 --- a/tests/ui/abi/c-zst.sparc64-linux.stderr +++ b/tests/ui/abi/c-zst.sparc64-linux.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -56,6 +57,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/c-zst.x86_64-linux.stderr b/tests/ui/abi/c-zst.x86_64-linux.stderr index c8f7d0a517c4..57cc48aa9cf4 100644 --- a/tests/ui/abi/c-zst.x86_64-linux.stderr +++ b/tests/ui/abi/c-zst.x86_64-linux.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -45,6 +46,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr index 1015f7d88988..673801767300 100644 --- a/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr +++ b/tests/ui/abi/c-zst.x86_64-pc-windows-gnu.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -56,6 +57,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/debug.stderr b/tests/ui/abi/debug.stderr index e550e5bfcf3c..5f73ff7d6bd5 100644 --- a/tests/ui/abi/debug.stderr +++ b/tests/ui/abi/debug.stderr @@ -20,6 +20,7 @@ error: fn_abi_of(test) = FnAbi { ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -67,6 +68,7 @@ error: fn_abi_of(test) = FnAbi { valid_range: 0..=1, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -125,6 +127,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { valid_range: 0..=1, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -163,6 +166,7 @@ error: fn_abi_of(TestFnPtr) = FnAbi { ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -213,6 +217,7 @@ error: fn_abi_of(test_generic) = FnAbi { ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -248,6 +253,7 @@ error: fn_abi_of(test_generic) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -297,6 +303,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -332,6 +339,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -369,6 +377,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -404,6 +413,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -444,6 +454,7 @@ error: ABIs are not compatible count: 32, }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -483,6 +494,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -517,6 +529,7 @@ error: ABIs are not compatible count: 32, }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -556,6 +569,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -598,6 +612,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -633,6 +648,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -670,6 +686,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -705,6 +722,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -748,6 +766,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -783,6 +802,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -820,6 +840,7 @@ error: ABIs are not compatible ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -855,6 +876,7 @@ error: ABIs are not compatible memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -923,6 +945,7 @@ error: fn_abi_of(assoc_test) = FnAbi { valid_range: $NON_NULL, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -960,6 +983,7 @@ error: fn_abi_of(assoc_test) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/abi/sysv64-zst.stderr b/tests/ui/abi/sysv64-zst.stderr index 781e9b2f4c9d..ec85030c1068 100644 --- a/tests/ui/abi/sysv64-zst.stderr +++ b/tests/ui/abi/sysv64-zst.stderr @@ -17,6 +17,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -45,6 +46,7 @@ error: fn_abi_of(pass_zst) = FnAbi { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/layout/debug.stderr b/tests/ui/layout/debug.stderr index 0daf2d3b9e7f..07cad7766920 100644 --- a/tests/ui/layout/debug.stderr +++ b/tests/ui/layout/debug.stderr @@ -31,6 +31,7 @@ error: layout_of(E) = Layout { valid_range: 0..=0, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -56,6 +57,7 @@ error: layout_of(E) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -69,7 +71,9 @@ error: layout_of(E) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(4 bytes), @@ -83,6 +87,7 @@ error: layout_of(E) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 1, }, @@ -136,6 +141,7 @@ error: layout_of(S) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -161,6 +167,7 @@ error: layout_of(U) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -213,6 +220,7 @@ error: layout_of(Result) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -255,6 +263,7 @@ error: layout_of(Result) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -293,6 +302,7 @@ error: layout_of(Result) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -328,6 +338,7 @@ error: layout_of(i32) = Layout { ), fields: Primitive, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -353,6 +364,7 @@ error: layout_of(V) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -378,6 +390,7 @@ error: layout_of(W) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -403,6 +416,7 @@ error: layout_of(Y) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -428,6 +442,7 @@ error: layout_of(P1) = Layout { 1, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -453,6 +468,7 @@ error: layout_of(P2) = Layout { 1, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -478,6 +494,7 @@ error: layout_of(P3) = Layout { 1, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -503,6 +520,7 @@ error: layout_of(P4) = Layout { 1, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -533,6 +551,7 @@ error: layout_of(P5) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -563,6 +582,7 @@ error: layout_of(MaybeUninit) = Layout { 2, ), largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/layout/hexagon-enum.stderr b/tests/ui/layout/hexagon-enum.stderr index 96f0a8c87408..90c06ba1f834 100644 --- a/tests/ui/layout/hexagon-enum.stderr +++ b/tests/ui/layout/hexagon-enum.stderr @@ -31,6 +31,7 @@ error: layout_of(A) = Layout { valid_range: 0..=0, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -56,6 +57,7 @@ error: layout_of(A) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -107,6 +109,7 @@ error: layout_of(B) = Layout { valid_range: 255..=255, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -132,6 +135,7 @@ error: layout_of(B) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -183,6 +187,7 @@ error: layout_of(C) = Layout { valid_range: 256..=256, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -208,6 +213,7 @@ error: layout_of(C) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -259,6 +265,7 @@ error: layout_of(P) = Layout { valid_range: 268435456..=268435456, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -284,6 +291,7 @@ error: layout_of(P) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -335,6 +343,7 @@ error: layout_of(T) = Layout { valid_range: 2164260864..=2164260864, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -360,6 +369,7 @@ error: layout_of(T) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr index cd9e4c027815..3bdb9c5c143e 100644 --- a/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr +++ b/tests/ui/layout/issue-96158-scalarpair-payload-might-be-uninit.stderr @@ -37,6 +37,7 @@ error: layout_of(MissingPayloadField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -78,6 +79,7 @@ error: layout_of(MissingPayloadField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -99,6 +101,7 @@ error: layout_of(MissingPayloadField) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -157,6 +160,7 @@ error: layout_of(CommonPayloadField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -199,6 +203,7 @@ error: layout_of(CommonPayloadField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -237,6 +242,7 @@ error: layout_of(CommonPayloadField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -294,6 +300,7 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -335,6 +342,7 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -372,6 +380,7 @@ error: layout_of(CommonPayloadFieldIsMaybeUninit) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -429,6 +438,7 @@ error: layout_of(NicheFirst) = Layout { valid_range: 0..=4, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -486,6 +496,7 @@ error: layout_of(NicheFirst) = Layout { valid_range: 0..=2, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -507,6 +518,7 @@ error: layout_of(NicheFirst) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -528,6 +540,7 @@ error: layout_of(NicheFirst) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 2, }, @@ -585,6 +598,7 @@ error: layout_of(NicheSecond) = Layout { valid_range: 0..=4, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -642,6 +656,7 @@ error: layout_of(NicheSecond) = Layout { valid_range: 0..=2, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -663,6 +678,7 @@ error: layout_of(NicheSecond) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -684,6 +700,7 @@ error: layout_of(NicheSecond) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 2, }, diff --git a/tests/ui/layout/issue-96185-overaligned-enum.stderr b/tests/ui/layout/issue-96185-overaligned-enum.stderr index 15a3f6004f50..1d4e44364482 100644 --- a/tests/ui/layout/issue-96185-overaligned-enum.stderr +++ b/tests/ui/layout/issue-96185-overaligned-enum.stderr @@ -25,6 +25,7 @@ error: layout_of(Aligned1) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -50,6 +51,7 @@ error: layout_of(Aligned1) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -73,6 +75,7 @@ error: layout_of(Aligned1) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -128,6 +131,7 @@ error: layout_of(Aligned2) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -153,6 +157,7 @@ error: layout_of(Aligned2) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -176,6 +181,7 @@ error: layout_of(Aligned2) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/layout/thumb-enum.stderr b/tests/ui/layout/thumb-enum.stderr index 120081d193c6..0c3433185647 100644 --- a/tests/ui/layout/thumb-enum.stderr +++ b/tests/ui/layout/thumb-enum.stderr @@ -31,6 +31,7 @@ error: layout_of(A) = Layout { valid_range: 0..=0, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -56,6 +57,7 @@ error: layout_of(A) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -107,6 +109,7 @@ error: layout_of(B) = Layout { valid_range: 255..=255, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -132,6 +135,7 @@ error: layout_of(B) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -183,6 +187,7 @@ error: layout_of(C) = Layout { valid_range: 256..=256, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -208,6 +213,7 @@ error: layout_of(C) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -259,6 +265,7 @@ error: layout_of(P) = Layout { valid_range: 268435456..=268435456, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -284,6 +291,7 @@ error: layout_of(P) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -335,6 +343,7 @@ error: layout_of(T) = Layout { valid_range: 2164260864..=2164260864, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -360,6 +369,7 @@ error: layout_of(T) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, diff --git a/tests/ui/layout/zero-sized-array-enum-niche.stderr b/tests/ui/layout/zero-sized-array-enum-niche.stderr index b6fcc14c063c..33d2eede2209 100644 --- a/tests/ui/layout/zero-sized-array-enum-niche.stderr +++ b/tests/ui/layout/zero-sized-array-enum-niche.stderr @@ -25,6 +25,7 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -54,6 +55,7 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -88,6 +90,7 @@ error: layout_of(Result<[u32; 0], bool>) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Single { index: 1, }, @@ -133,6 +136,7 @@ error: layout_of(MultipleAlignments) = Layout { valid_range: 0..=2, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -162,6 +166,7 @@ error: layout_of(MultipleAlignments) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -187,6 +192,7 @@ error: layout_of(MultipleAlignments) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -221,6 +227,7 @@ error: layout_of(MultipleAlignments) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Single { index: 2, }, @@ -266,6 +273,7 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -295,6 +303,7 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -329,6 +338,7 @@ error: layout_of(Result<[u32; 0], Packed>>) = Layout { valid_range: 1..=65535, }, ), + uninhabited: false, variants: Single { index: 1, }, @@ -374,6 +384,7 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -407,6 +418,7 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -441,6 +453,7 @@ error: layout_of(Result<[u32; 0], Packed>) = Layout { valid_range: 0..=0, }, ), + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr index 8e8f1d159b74..204db30786ee 100644 --- a/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.aarch64-unknown-linux-gnu.stderr @@ -4,7 +4,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(0 bytes), @@ -23,6 +31,7 @@ error: layout_of(Univariant) = Layout { valid_range: 0..=0, }, ), + uninhabited: true, variants: Multiple { tag: Initialized { value: Int( @@ -40,7 +49,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -50,6 +67,7 @@ error: layout_of(Univariant) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -107,6 +125,7 @@ error: layout_of(TwoVariants) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -119,12 +138,26 @@ error: layout_of(TwoVariants) = Layout { tag_field: 0, variants: [ Layout { - size: Size(4 bytes), + size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: ScalarPair( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=1, + }, + Union { + value: Int( + I8, + false, + ), + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -134,6 +167,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -171,6 +205,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +251,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -233,7 +269,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { abi: Align(8 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(8 bytes), @@ -245,6 +283,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -272,6 +311,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr index 2cd0960ce3ee..1fab00bf50c4 100644 --- a/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr +++ b/tests/ui/repr/repr-c-dead-variants.armebv7r-none-eabi.stderr @@ -4,7 +4,15 @@ error: layout_of(Univariant) = Layout { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(0 bytes), @@ -23,6 +31,7 @@ error: layout_of(Univariant) = Layout { valid_range: 0..=0, }, ), + uninhabited: true, variants: Multiple { tag: Initialized { value: Int( @@ -40,7 +49,15 @@ error: layout_of(Univariant) = Layout { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(1 bytes), @@ -50,6 +67,7 @@ error: layout_of(Univariant) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -107,6 +125,7 @@ error: layout_of(TwoVariants) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -119,12 +138,26 @@ error: layout_of(TwoVariants) = Layout { tag_field: 0, variants: [ Layout { - size: Size(1 bytes), + size: Size(2 bytes), align: AbiAndPrefAlign { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: ScalarPair( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + Union { + value: Int( + I8, + false, + ), + }, + ), fields: Arbitrary { offsets: [ Size(1 bytes), @@ -134,6 +167,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -171,6 +205,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +251,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -233,7 +269,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { abi: Align(8 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(8 bytes), @@ -245,6 +283,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -272,6 +311,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr index 8e8f1d159b74..204db30786ee 100644 --- a/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr +++ b/tests/ui/repr/repr-c-dead-variants.i686-pc-windows-msvc.stderr @@ -4,7 +4,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(0 bytes), @@ -23,6 +31,7 @@ error: layout_of(Univariant) = Layout { valid_range: 0..=0, }, ), + uninhabited: true, variants: Multiple { tag: Initialized { value: Int( @@ -40,7 +49,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -50,6 +67,7 @@ error: layout_of(Univariant) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -107,6 +125,7 @@ error: layout_of(TwoVariants) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -119,12 +138,26 @@ error: layout_of(TwoVariants) = Layout { tag_field: 0, variants: [ Layout { - size: Size(4 bytes), + size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: ScalarPair( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=1, + }, + Union { + value: Int( + I8, + false, + ), + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -134,6 +167,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -171,6 +205,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +251,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -233,7 +269,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { abi: Align(8 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(8 bytes), @@ -245,6 +283,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -272,6 +311,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr index 8e8f1d159b74..204db30786ee 100644 --- a/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr +++ b/tests/ui/repr/repr-c-dead-variants.x86_64-unknown-linux-gnu.stderr @@ -4,7 +4,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(0 bytes), @@ -23,6 +31,7 @@ error: layout_of(Univariant) = Layout { valid_range: 0..=0, }, ), + uninhabited: true, variants: Multiple { tag: Initialized { value: Int( @@ -40,7 +49,15 @@ error: layout_of(Univariant) = Layout { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -50,6 +67,7 @@ error: layout_of(Univariant) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -107,6 +125,7 @@ error: layout_of(TwoVariants) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -119,12 +138,26 @@ error: layout_of(TwoVariants) = Layout { tag_field: 0, variants: [ Layout { - size: Size(4 bytes), + size: Size(8 bytes), align: AbiAndPrefAlign { abi: Align(4 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: ScalarPair( + Initialized { + value: Int( + I32, + false, + ), + valid_range: 0..=1, + }, + Union { + value: Int( + I8, + false, + ), + }, + ), fields: Arbitrary { offsets: [ Size(4 bytes), @@ -134,6 +167,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -171,6 +205,7 @@ error: layout_of(TwoVariants) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +251,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -233,7 +269,9 @@ error: layout_of(DeadBranchHasOtherField) = Layout { abi: Align(8 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(8 bytes), @@ -245,6 +283,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -272,6 +311,7 @@ error: layout_of(DeadBranchHasOtherField) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/repr/repr-c-int-dead-variants.stderr b/tests/ui/repr/repr-c-int-dead-variants.stderr index fa08b323dec2..f852212deb90 100644 --- a/tests/ui/repr/repr-c-int-dead-variants.stderr +++ b/tests/ui/repr/repr-c-int-dead-variants.stderr @@ -4,7 +4,15 @@ error: layout_of(UnivariantU8) = Layout { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(0 bytes), @@ -23,6 +31,7 @@ error: layout_of(UnivariantU8) = Layout { valid_range: 0..=0, }, ), + uninhabited: true, variants: Multiple { tag: Initialized { value: Int( @@ -40,7 +49,15 @@ error: layout_of(UnivariantU8) = Layout { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Scalar( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=0, + }, + ), fields: Arbitrary { offsets: [ Size(1 bytes), @@ -50,6 +67,7 @@ error: layout_of(UnivariantU8) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -107,6 +125,7 @@ error: layout_of(TwoVariantsU8) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -119,12 +138,26 @@ error: layout_of(TwoVariantsU8) = Layout { tag_field: 0, variants: [ Layout { - size: Size(1 bytes), + size: Size(2 bytes), align: AbiAndPrefAlign { abi: Align(1 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: ScalarPair( + Initialized { + value: Int( + I8, + false, + ), + valid_range: 0..=1, + }, + Union { + value: Int( + I8, + false, + ), + }, + ), fields: Arbitrary { offsets: [ Size(1 bytes), @@ -134,6 +167,7 @@ error: layout_of(TwoVariantsU8) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -171,6 +205,7 @@ error: layout_of(TwoVariantsU8) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +251,7 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { valid_range: 0..=1, }, ), + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -233,7 +269,9 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { abi: Align(8 bytes), pref: $SOME_ALIGN, }, - abi: Uninhabited, + abi: Memory { + sized: true, + }, fields: Arbitrary { offsets: [ Size(8 bytes), @@ -245,6 +283,7 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { ], }, largest_niche: None, + uninhabited: true, variants: Single { index: 0, }, @@ -272,6 +311,7 @@ error: layout_of(DeadBranchHasOtherFieldU8) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Single { index: 1, }, diff --git a/tests/ui/type/pattern_types/range_patterns.stderr b/tests/ui/type/pattern_types/range_patterns.stderr index 7da8cfd4dbc2..690592ba0b8d 100644 --- a/tests/ui/type/pattern_types/range_patterns.stderr +++ b/tests/ui/type/pattern_types/range_patterns.stderr @@ -31,6 +31,7 @@ error: layout_of(NonZero) = Layout { valid_range: 1..=4294967295, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -69,6 +70,7 @@ error: layout_of((u32) is 1..=) = Layout { valid_range: 1..=4294967295, }, ), + uninhabited: false, variants: Single { index: 0, }, @@ -105,6 +107,7 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -134,6 +137,7 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -174,6 +178,7 @@ error: layout_of(Option<(u32) is 1..=>) = Layout { valid_range: 1..=4294967295, }, ), + uninhabited: false, variants: Single { index: 1, }, @@ -216,6 +221,7 @@ error: layout_of(Option>) = Layout { ], }, largest_niche: None, + uninhabited: false, variants: Multiple { tag: Initialized { value: Int( @@ -245,6 +251,7 @@ error: layout_of(Option>) = Layout { memory_index: [], }, largest_niche: None, + uninhabited: false, variants: Single { index: 0, }, @@ -285,6 +292,7 @@ error: layout_of(Option>) = Layout { valid_range: 1..=4294967295, }, ), + uninhabited: false, variants: Single { index: 1, }, @@ -336,6 +344,7 @@ error: layout_of(NonZeroU32New) = Layout { valid_range: 1..=4294967295, }, ), + uninhabited: false, variants: Single { index: 0, }, From bcfde13d51229e5ba4cb324194561b18e9326680 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Tue, 28 Jan 2025 01:29:37 -0600 Subject: [PATCH 169/255] Update check to reflect that non-ZST uninhabited types should not be PassMode::Ignore. --- compiler/rustc_ty_utils/src/abi.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compiler/rustc_ty_utils/src/abi.rs b/compiler/rustc_ty_utils/src/abi.rs index 2d20ef3d690d..0ff82f0c256d 100644 --- a/compiler/rustc_ty_utils/src/abi.rs +++ b/compiler/rustc_ty_utils/src/abi.rs @@ -464,7 +464,7 @@ fn fn_abi_sanity_check<'tcx>( match &arg.mode { PassMode::Ignore => { - assert!(arg.layout.is_zst() || arg.layout.is_uninhabited()); + assert!(arg.layout.is_zst()); } PassMode::Direct(_) => { // Here the Rust type is used to determine the actual ABI, so we have to be very From 58ebf6afdd01d32f9f6d22d2e788c0dc10bc65a5 Mon Sep 17 00:00:00 2001 From: Zachary S Date: Thu, 13 Feb 2025 13:17:39 -0600 Subject: [PATCH 170/255] Add test that uninhabited repr(transparent) type has same function return ABI as wrapped type. Fix codegen of uninhabited PassMode::Indirect return types. Add codegen test for uninhabited PassMode::Indirect return types. Enable optimizations for uninhabited return type codegen test --- compiler/rustc_codegen_ssa/src/mir/block.rs | 28 +++--------- .../uninhabited-transparent-return-abi.rs | 44 +++++++++++++++++++ .../uninhabited-transparent-return-abi.rs | 33 ++++++++++++++ 3 files changed, 84 insertions(+), 21 deletions(-) create mode 100644 tests/codegen/uninhabited-transparent-return-abi.rs create mode 100644 tests/ui/uninhabited/uninhabited-transparent-return-abi.rs diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index 0620f08fc731..49074996174a 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -4,9 +4,7 @@ use rustc_abi::{BackendRepr, ExternAbi, HasDataLayout, Reg, WrappingRange}; use rustc_ast as ast; use rustc_ast::{InlineAsmOptions, InlineAsmTemplatePiece}; use rustc_hir::lang_items::LangItem; -use rustc_middle::mir::{ - self, AssertKind, BasicBlock, InlineAsmMacro, SwitchTargets, UnwindTerminateReason, -}; +use rustc_middle::mir::{self, AssertKind, InlineAsmMacro, SwitchTargets, UnwindTerminateReason}; use rustc_middle::ty::layout::{HasTyCtxt, LayoutOf, ValidityRequirement}; use rustc_middle::ty::print::{with_no_trimmed_paths, with_no_visible_paths}; use rustc_middle::ty::{self, Instance, Ty}; @@ -942,7 +940,6 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { &fn_abi.ret, &mut llargs, Some(intrinsic), - target, ); let dest = match ret_dest { _ if fn_abi.ret.is_indirect() => llargs[0], @@ -998,19 +995,12 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { }; let mut llargs = Vec::with_capacity(arg_count); - let destination = target.as_ref().map(|&target| { - ( - self.make_return_dest( - bx, - destination, - &fn_abi.ret, - &mut llargs, - None, - Some(target), - ), - target, - ) - }); + + // We still need to call `make_return_dest` even if there's no `target`, since + // `fn_abi.ret` could be `PassMode::Indirect`, even if it is uninhabited, + // and `make_return_dest` adds the return-place indirect pointer to `llargs`. + let return_dest = self.make_return_dest(bx, destination, &fn_abi.ret, &mut llargs, None); + let destination = target.map(|target| (return_dest, target)); // Split the rust-call tupled arguments off. let (first_args, untuple) = if abi == ExternAbi::RustCall && !args.is_empty() { @@ -1813,11 +1803,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { fn_ret: &ArgAbi<'tcx, Ty<'tcx>>, llargs: &mut Vec, intrinsic: Option, - target: Option, ) -> ReturnDest<'tcx, Bx::Value> { - if target.is_none() { - return ReturnDest::Nothing; - } // If the return is ignored, we can just return a do-nothing `ReturnDest`. if fn_ret.is_ignore() { return ReturnDest::Nothing; diff --git a/tests/codegen/uninhabited-transparent-return-abi.rs b/tests/codegen/uninhabited-transparent-return-abi.rs new file mode 100644 index 000000000000..6e8b1683163e --- /dev/null +++ b/tests/codegen/uninhabited-transparent-return-abi.rs @@ -0,0 +1,44 @@ +//@ compile-flags: -Copt-level=3 + +// See https://github.com/rust-lang/rust/issues/135802 + +#![crate_type = "lib"] + +enum Void {} + +// Should be ABI-compatible with T, but wasn't prior to the PR adding this test. +#[repr(transparent)] +struct NoReturn(T, Void); + +// Returned by invisible reference (in most ABIs) +#[allow(dead_code)] +struct Large(u64, u64, u64); + +extern "Rust" { + fn opaque() -> NoReturn; + fn opaque_with_arg(rsi: u32) -> NoReturn; +} + +// CHECK-LABEL: @test_uninhabited_ret_by_ref +#[no_mangle] +pub fn test_uninhabited_ret_by_ref() { + // CHECK: %_1 = alloca [24 x i8], align {{8|4}} + // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %_1) + // CHECK-NEXT: call void @opaque(ptr noalias nocapture noundef nonnull sret([24 x i8]) align {{8|4}} dereferenceable(24) %_1) #2 + // CHECK-NEXT: unreachable + unsafe { + opaque(); + } +} + +// CHECK-LABEL: @test_uninhabited_ret_by_ref_with_arg +#[no_mangle] +pub fn test_uninhabited_ret_by_ref_with_arg(rsi: u32) { + // CHECK: %_2 = alloca [24 x i8], align {{8|4}} + // CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %_2) + // CHECK-NEXT: call void @opaque_with_arg(ptr noalias nocapture noundef nonnull sret([24 x i8]) align {{8|4}} dereferenceable(24) %_2, i32 noundef %rsi) #2 + // CHECK-NEXT: unreachable + unsafe { + opaque_with_arg(rsi); + } +} diff --git a/tests/ui/uninhabited/uninhabited-transparent-return-abi.rs b/tests/ui/uninhabited/uninhabited-transparent-return-abi.rs new file mode 100644 index 000000000000..2c2788a3e564 --- /dev/null +++ b/tests/ui/uninhabited/uninhabited-transparent-return-abi.rs @@ -0,0 +1,33 @@ +//@ run-pass +//@ needs-unwind +// See https://github.com/rust-lang/rust/issues/135802 + +enum Void {} + +// Should be ABI-compatible with T, but wasn't prior to the PR adding this test. +#[repr(transparent)] +struct NoReturn(T, Void); + +// Returned by invisible reference (in most ABIs) +#[allow(dead_code)] +struct Large(u64, u64, u64); + +// Prior to the PR adding this test, this function had a different ABI than +// `fn() -> Large` (on `x86_64-unknown-linux-gnu` at least), so calling it as `fn() -> Large` +// would pass the return place pointer in rdi and `correct` in rsi, but the function +// would expect `correct` in rdi. +fn never(correct: &mut bool) -> NoReturn { + *correct = true; + panic!("catch this") +} + +fn main() { + let mut correct = false; + let never: fn(&mut bool) -> NoReturn = never; + // Safety: `NoReturn` is a `repr(transparent)` wrapper around `Large`, + // so they should be ABI-compatible. + let never: fn(&mut bool) -> Large = unsafe { std::mem::transmute(never) }; + let result = std::panic::catch_unwind(std::panic::AssertUnwindSafe(|| never(&mut correct))); + assert!(result.is_err(), "function should have panicked"); + assert!(correct, "function should have stored `true` into `correct`"); +} From 6493cd8699cc6d55a38b5187ff4cc731f969c483 Mon Sep 17 00:00:00 2001 From: zachs18 <8355914+zachs18@users.noreply.github.com> Date: Mon, 17 Feb 2025 18:49:18 -0600 Subject: [PATCH 171/255] Adjust LayoutData::uninhabited doc comment. Co-authored-by: Jubilee --- compiler/rustc_abi/src/lib.rs | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 14a8a5792004..098638b6bcfa 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1696,8 +1696,8 @@ pub struct LayoutData { pub largest_niche: Option, /// Is this type known to be uninhabted? /// - /// This is separate from BackendRepr, because an uninhabited return type may require special - /// consideration based on its size or other attributes. + /// This is separate from BackendRepr because uninhabited return types can affect ABI, + /// especially in the case of by-pointer struct returns, which allocate stack even when unused. pub uninhabited: bool, pub align: AbiAndPrefAlign, From e3f5db07e0daa833c51c335fa07d87affd8a8bf9 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Tue, 18 Feb 2025 11:31:38 +0100 Subject: [PATCH 172/255] fine-tune comment --- compiler/rustc_const_eval/src/interpret/validity.rs | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 3667cc84d708..40dec0cb39e7 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -1264,12 +1264,11 @@ impl<'rt, 'tcx, M: Machine<'tcx>> ValueVisitor<'tcx, M> for ValidityVisitor<'rt, } } - // *After* all of this, check the ABI. We need to check the ABI to handle - // types like `NonNull` where the `Scalar` info is more restrictive than what - // the fields say (`rustc_layout_scalar_valid_range_start`). - // But in most cases, this will just propagate what the fields say, - // and then we want the error to point at the field -- so, first recurse, - // then check ABI. + // *After* all of this, check further information stored in the layout. We need to check + // this to handle types like `NonNull` where the `Scalar` info is more restrictive than what + // the fields say (`rustc_layout_scalar_valid_range_start`). But in most cases, this will + // just propagate what the fields say, and then we want the error to point at the field -- + // so, we first recurse, then we do this check. // // FIXME: We could avoid some redundant checks here. For newtypes wrapping // scalars, we do the same check on every "level" (e.g., first we check From 953515131b32deaf26410cb78b7eb6fe93d4d9b4 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 20 Feb 2025 20:43:57 +0100 Subject: [PATCH 173/255] Improve error message when a submodule directory is missing completely --- src/bootstrap/src/lib.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index dfaf0418d9a2..c41be41219e0 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -488,7 +488,7 @@ impl Build { } self.config.update_submodule(submodule); let absolute_path = self.config.src.join(submodule); - if dir_is_empty(&absolute_path) { + if !absolute_path.exists() || dir_is_empty(&absolute_path) { let maybe_enable = if !self.config.submodules() && self.config.rust_info.is_managed_git_subrepository() { From d2203ad59c67a6acb2968ea77e1e9dea5530e518 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Thu, 20 Feb 2025 22:48:39 +0300 Subject: [PATCH 174/255] skip submodule updating logics on tarballs Signed-off-by: onur-ozkan --- src/bootstrap/src/core/config/config.rs | 2 +- src/bootstrap/src/lib.rs | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/config/config.rs b/src/bootstrap/src/core/config/config.rs index 64a510240f83..172b8d787640 100644 --- a/src/bootstrap/src/core/config/config.rs +++ b/src/bootstrap/src/core/config/config.rs @@ -2767,7 +2767,7 @@ impl Config { ), )] pub(crate) fn update_submodule(&self, relative_path: &str) { - if !self.submodules() { + if self.rust_info.is_from_tarball() || !self.submodules() { return; } diff --git a/src/bootstrap/src/lib.rs b/src/bootstrap/src/lib.rs index dfaf0418d9a2..a0934a8d5566 100644 --- a/src/bootstrap/src/lib.rs +++ b/src/bootstrap/src/lib.rs @@ -481,6 +481,10 @@ impl Build { ), )] pub fn require_submodule(&self, submodule: &str, err_hint: Option<&str>) { + if self.rust_info().is_from_tarball() { + return; + } + // When testing bootstrap itself, it is much faster to ignore // submodules. Almost all Steps work fine without their submodules. if cfg!(test) && !self.config.submodules() { From c2dba9ce787c088066ae81f51c4088714bb5e69d Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 6 Feb 2025 16:33:55 +1100 Subject: [PATCH 175/255] Rename `InternedObligationCauseCode`. It's a misleading name, because it's not interned. --- compiler/rustc_middle/src/traits/mod.rs | 32 +++++++++++++------------ 1 file changed, 17 insertions(+), 15 deletions(-) diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 23c06f712322..53bc9eb7e466 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -51,7 +51,7 @@ pub struct ObligationCause<'tcx> { /// information. pub body_id: LocalDefId, - code: InternedObligationCauseCode<'tcx>, + code: ObligationCauseCodeHandle<'tcx>, } // This custom hash function speeds up hashing for `Obligation` deduplication @@ -97,7 +97,7 @@ impl<'tcx> ObligationCause<'tcx> { pub fn map_code( &mut self, - f: impl FnOnce(InternedObligationCauseCode<'tcx>) -> ObligationCauseCode<'tcx>, + f: impl FnOnce(ObligationCauseCodeHandle<'tcx>) -> ObligationCauseCode<'tcx>, ) { self.code = f(std::mem::take(&mut self.code)).into(); } @@ -152,15 +152,16 @@ pub struct UnifyReceiverContext<'tcx> { pub args: GenericArgsRef<'tcx>, } +/// A compact form of `ObligationCauseCode`. #[derive(Clone, PartialEq, Eq, Default, HashStable)] #[derive(TypeVisitable, TypeFoldable, TyEncodable, TyDecodable)] -pub struct InternedObligationCauseCode<'tcx> { +pub struct ObligationCauseCodeHandle<'tcx> { /// `None` for `ObligationCauseCode::Misc` (a common case, occurs ~60% of /// the time). `Some` otherwise. code: Option>>, } -impl<'tcx> std::fmt::Debug for InternedObligationCauseCode<'tcx> { +impl<'tcx> std::fmt::Debug for ObligationCauseCodeHandle<'tcx> { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { let cause: &ObligationCauseCode<'_> = self; cause.fmt(f) @@ -169,14 +170,14 @@ impl<'tcx> std::fmt::Debug for InternedObligationCauseCode<'tcx> { impl<'tcx> ObligationCauseCode<'tcx> { #[inline(always)] - fn into(self) -> InternedObligationCauseCode<'tcx> { - InternedObligationCauseCode { + fn into(self) -> ObligationCauseCodeHandle<'tcx> { + ObligationCauseCodeHandle { code: if let ObligationCauseCode::Misc = self { None } else { Some(Arc::new(self)) }, } } } -impl<'tcx> std::ops::Deref for InternedObligationCauseCode<'tcx> { +impl<'tcx> std::ops::Deref for ObligationCauseCodeHandle<'tcx> { type Target = ObligationCauseCode<'tcx>; fn deref(&self) -> &Self::Target { @@ -305,7 +306,7 @@ pub enum ObligationCauseCode<'tcx> { /// The node of the function call. call_hir_id: HirId, /// The obligation introduced by this argument. - parent_code: InternedObligationCauseCode<'tcx>, + parent_code: ObligationCauseCodeHandle<'tcx>, }, /// Error derived when checking an impl item is compatible with @@ -390,7 +391,8 @@ pub enum ObligationCauseCode<'tcx> { /// `WellFormed(None)`. WellFormed(Option), - /// From `match_impl`. The cause for us having to match an impl, and the DefId we are matching against. + /// From `match_impl`. The cause for us having to match an impl, and the DefId we are matching + /// against. MatchImpl(ObligationCause<'tcx>, DefId), BinOp { @@ -413,7 +415,7 @@ pub enum ObligationCauseCode<'tcx> { ConstParam(Ty<'tcx>), /// Obligations emitted during the normalization of a weak type alias. - TypeAlias(InternedObligationCauseCode<'tcx>, Span, DefId), + TypeAlias(ObligationCauseCodeHandle<'tcx>, Span, DefId), } /// Whether a value can be extracted into a const. @@ -578,7 +580,7 @@ pub struct DerivedCause<'tcx> { pub parent_trait_pred: ty::PolyTraitPredicate<'tcx>, /// The parent trait had this cause. - pub parent_code: InternedObligationCauseCode<'tcx>, + pub parent_code: ObligationCauseCodeHandle<'tcx>, } #[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] @@ -586,9 +588,9 @@ pub struct DerivedCause<'tcx> { pub struct ImplDerivedCause<'tcx> { pub derived: DerivedCause<'tcx>, /// The `DefId` of the `impl` that gave rise to the `derived` obligation. - /// If the `derived` obligation arose from a trait alias, which conceptually has a synthetic impl, - /// then this will be the `DefId` of that trait alias. Care should therefore be taken to handle - /// that exceptional case where appropriate. + /// If the `derived` obligation arose from a trait alias, which conceptually has a synthetic + /// impl, then this will be the `DefId` of that trait alias. Care should therefore be taken to + /// handle that exceptional case where appropriate. pub impl_or_alias_def_id: DefId, /// The index of the derived predicate in the parent impl's predicates. pub impl_def_predicate_index: Option, @@ -605,7 +607,7 @@ pub struct DerivedHostCause<'tcx> { pub parent_host_pred: ty::Binder<'tcx, ty::HostEffectPredicate<'tcx>>, /// The parent trait had this cause. - pub parent_code: InternedObligationCauseCode<'tcx>, + pub parent_code: ObligationCauseCodeHandle<'tcx>, } #[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] From c0bea5d92d69c93ec8b6d4374df6863ff312e20f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Thu, 20 Feb 2025 21:06:25 +0100 Subject: [PATCH 176/255] Add a notice about missing GCC sources in source tarballs --- src/bootstrap/src/core/build_steps/dist.rs | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 85b224771bb3..795f9506a259 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -1029,6 +1029,17 @@ impl Step for PlainSourceTarball { ], plain_dst_src, ); + // We keep something in src/gcc because it is a registered submodule, + // and if it misses completely it can cause issues elsewhere + // (see https://github.com/rust-lang/rust/issues/137332). + // We can also let others know why is the source code missing. + if !builder.config.dry_run() { + builder.create_dir(&plain_dst_src.join("src/gcc")); + t!(std::fs::write( + plain_dst_src.join("src/gcc/notice.txt"), + "The GCC source code is not included due to unclear licensing implications\n" + )); + } // Copy the files normally for item in &src_files { From e2e4d0bdb1c04faa538fea2db097c9a3b0b4df41 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 6 Feb 2025 16:37:02 +1100 Subject: [PATCH 177/255] Remove an unnecessary re-export. It's a bit weird. --- compiler/rustc_infer/src/infer/mod.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index c2513a1af198..bc701871d46d 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -28,7 +28,6 @@ use rustc_middle::bug; use rustc_middle::infer::canonical::{CanonicalQueryInput, CanonicalVarValues}; use rustc_middle::mir::ConstraintCategory; use rustc_middle::traits::select; -pub use rustc_middle::ty::IntVarValue; use rustc_middle::ty::error::{ExpectedFound, TypeError}; use rustc_middle::ty::fold::{ BoundVarReplacerDelegate, TypeFoldable, TypeFolder, TypeSuperFoldable, fold_regions, From c301ba57a652ffdf8f39d9ddd92cf168e594f21c Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 12 Feb 2025 17:00:57 +1100 Subject: [PATCH 178/255] Fix a typo in a comment. --- compiler/rustc_middle/src/mir/mod.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 528da4ca0577..214fa3f38db3 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -116,7 +116,7 @@ impl MirPhase { } } - /// Parses an `MirPhase` from a pair of strings. Panics if this isn't possible for any reason. + /// Parses a `MirPhase` from a pair of strings. Panics if this isn't possible for any reason. pub fn parse(dialect: String, phase: Option) -> Self { match &*dialect.to_ascii_lowercase() { "built" => { From 2f695dc64ec7912ebc93c0322566a0ac2a6a21b4 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 13 Feb 2025 11:09:46 +1100 Subject: [PATCH 179/255] Remove unused `Body::span_for_ty_context` method. --- compiler/rustc_middle/src/mir/mod.rs | 12 ------------ 1 file changed, 12 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 214fa3f38db3..2e8d3f213947 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -30,7 +30,6 @@ use rustc_span::{DUMMY_SP, Span, Symbol}; use tracing::{debug, trace}; pub use self::query::*; -use self::visit::TyContext; use crate::mir::interpret::{AllocRange, Scalar}; use crate::mir::visit::MirVisitable; use crate::ty::codec::{TyDecoder, TyEncoder}; @@ -540,17 +539,6 @@ impl<'tcx> Body<'tcx> { } } - pub fn span_for_ty_context(&self, ty_context: TyContext) -> Span { - match ty_context { - TyContext::UserTy(span) => span, - TyContext::ReturnTy(source_info) - | TyContext::LocalDecl { source_info, .. } - | TyContext::YieldTy(source_info) - | TyContext::ResumeTy(source_info) => source_info.span, - TyContext::Location(loc) => self.source_info(loc).span, - } - } - /// Returns the return type; it always return first element from `local_decls` array. #[inline] pub fn return_ty(&self) -> Ty<'tcx> { From 5d2d11fd5da7216595154b7a67ca4477281f65a9 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 13 Feb 2025 14:00:39 +1100 Subject: [PATCH 180/255] Rename `ClearCrossCrate::assert_crate_local`. As `unwrap_crate_local`, because it follows exactly the standard form of an `unwrap` function. --- compiler/rustc_middle/src/mir/mod.rs | 4 ++-- compiler/rustc_mir_build/src/builder/expr/as_operand.rs | 2 +- compiler/rustc_mir_build/src/builder/expr/as_temp.rs | 2 +- compiler/rustc_mir_build/src/builder/matches/mod.rs | 2 +- compiler/rustc_mir_build/src/builder/mod.rs | 4 ++-- compiler/rustc_mir_build/src/builder/scope.rs | 4 ++-- compiler/rustc_mir_transform/src/check_const_item_mutation.rs | 2 +- compiler/rustc_mir_transform/src/coroutine.rs | 2 +- compiler/rustc_mir_transform/src/ffi_unwind_calls.rs | 2 +- compiler/rustc_mir_transform/src/function_item_references.rs | 2 +- compiler/rustc_mir_transform/src/patch.rs | 2 +- src/tools/clippy/clippy_lints/src/redundant_clone.rs | 2 +- 12 files changed, 15 insertions(+), 15 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 2e8d3f213947..20cf358fd2dc 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -780,7 +780,7 @@ impl ClearCrossCrate { } } - pub fn assert_crate_local(self) -> T { + pub fn unwrap_crate_local(self) -> T { match self { ClearCrossCrate::Clear => bug!("unwrapping cross-crate data"), ClearCrossCrate::Set(v) => v, @@ -1094,7 +1094,7 @@ pub enum LocalInfo<'tcx> { impl<'tcx> LocalDecl<'tcx> { pub fn local_info(&self) -> &LocalInfo<'tcx> { - self.local_info.as_ref().assert_crate_local() + self.local_info.as_ref().unwrap_crate_local() } /// Returns `true` only if local is a binding that can itself be diff --git a/compiler/rustc_mir_build/src/builder/expr/as_operand.rs b/compiler/rustc_mir_build/src/builder/expr/as_operand.rs index 63e9b1dc6cd5..2059610ee47d 100644 --- a/compiler/rustc_mir_build/src/builder/expr/as_operand.rs +++ b/compiler/rustc_mir_build/src/builder/expr/as_operand.rs @@ -142,7 +142,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { // Overwrite temp local info if we have something more interesting to record. if !matches!(local_info, LocalInfo::Boring) { let decl_info = - this.local_decls[operand].local_info.as_mut().assert_crate_local(); + this.local_decls[operand].local_info.as_mut().unwrap_crate_local(); if let LocalInfo::Boring | LocalInfo::BlockTailTemp(_) = **decl_info { **decl_info = local_info; } diff --git a/compiler/rustc_mir_build/src/builder/expr/as_temp.rs b/compiler/rustc_mir_build/src/builder/expr/as_temp.rs index 2927f5b0c45d..0bd61168fba0 100644 --- a/compiler/rustc_mir_build/src/builder/expr/as_temp.rs +++ b/compiler/rustc_mir_build/src/builder/expr/as_temp.rs @@ -85,7 +85,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { _ => LocalInfo::Boring, }; - **local_decl.local_info.as_mut().assert_crate_local() = local_info; + **local_decl.local_info.as_mut().unwrap_crate_local() = local_info; this.local_decls.push(local_decl) }; debug!(?temp); diff --git a/compiler/rustc_mir_build/src/builder/matches/mod.rs b/compiler/rustc_mir_build/src/builder/matches/mod.rs index ed577f7adeb3..828dd9f363a6 100644 --- a/compiler/rustc_mir_build/src/builder/matches/mod.rs +++ b/compiler/rustc_mir_build/src/builder/matches/mod.rs @@ -722,7 +722,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { if let LocalInfo::User(BindingForm::Var(VarBindingForm { opt_match_place: Some((ref mut match_place, _)), .. - })) = **self.local_decls[local].local_info.as_mut().assert_crate_local() + })) = **self.local_decls[local].local_info.as_mut().unwrap_crate_local() { *match_place = Some(place); } else { diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index fb0aa354913f..2fe643e478e9 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -967,7 +967,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } => { self.local_decls[local].mutability = mutability; self.local_decls[local].source_info.scope = self.source_scope; - **self.local_decls[local].local_info.as_mut().assert_crate_local() = + **self.local_decls[local].local_info.as_mut().unwrap_crate_local() = if let Some(kind) = param.self_kind { LocalInfo::User(BindingForm::ImplicitSelf(kind)) } else { @@ -1032,7 +1032,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let parent_id = self.source_scopes[original_source_scope] .local_data .as_ref() - .assert_crate_local() + .unwrap_crate_local() .lint_root; self.maybe_new_source_scope(pattern_span, arg_hir_id, parent_id); } diff --git a/compiler/rustc_mir_build/src/builder/scope.rs b/compiler/rustc_mir_build/src/builder/scope.rs index d3551ea3a97b..815612394912 100644 --- a/compiler/rustc_mir_build/src/builder/scope.rs +++ b/compiler/rustc_mir_build/src/builder/scope.rs @@ -604,7 +604,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let source_scope = self.source_scope; if let LintLevel::Explicit(current_hir_id) = lint_level { let parent_id = - self.source_scopes[source_scope].local_data.as_ref().assert_crate_local().lint_root; + self.source_scopes[source_scope].local_data.as_ref().unwrap_crate_local().lint_root; self.maybe_new_source_scope(region_scope.1.span, current_hir_id, parent_id); } self.push_scope(region_scope); @@ -992,7 +992,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { lint_root: if let LintLevel::Explicit(lint_root) = lint_level { lint_root } else { - self.source_scopes[parent].local_data.as_ref().assert_crate_local().lint_root + self.source_scopes[parent].local_data.as_ref().unwrap_crate_local().lint_root }, }; self.source_scopes.push(SourceScopeData { diff --git a/compiler/rustc_mir_transform/src/check_const_item_mutation.rs b/compiler/rustc_mir_transform/src/check_const_item_mutation.rs index 3affe4abbfad..ceea72c6755a 100644 --- a/compiler/rustc_mir_transform/src/check_const_item_mutation.rs +++ b/compiler/rustc_mir_transform/src/check_const_item_mutation.rs @@ -79,7 +79,7 @@ impl<'tcx> ConstMutationChecker<'_, 'tcx> { let lint_root = self.body.source_scopes[source_info.scope] .local_data .as_ref() - .assert_crate_local() + .unwrap_crate_local() .lint_root; Some((lint_root, source_info.span, self.tcx.def_span(const_item))) diff --git a/compiler/rustc_mir_transform/src/coroutine.rs b/compiler/rustc_mir_transform/src/coroutine.rs index f3f3a65cd805..04d96f117072 100644 --- a/compiler/rustc_mir_transform/src/coroutine.rs +++ b/compiler/rustc_mir_transform/src/coroutine.rs @@ -945,7 +945,7 @@ fn compute_layout<'tcx>( let decl = &body.local_decls[local]; debug!(?decl); - // Do not `assert_crate_local` here, as post-borrowck cleanup may have already cleared + // Do not `unwrap_crate_local` here, as post-borrowck cleanup may have already cleared // the information. This is alright, since `ignore_for_traits` is only relevant when // this code runs on pre-cleanup MIR, and `ignore_for_traits = false` is the safer // default. diff --git a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs index 5d21d687a35a..7b3553e7afd0 100644 --- a/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs +++ b/compiler/rustc_mir_transform/src/ffi_unwind_calls.rs @@ -85,7 +85,7 @@ fn has_ffi_unwind_calls(tcx: TyCtxt<'_>, local_def_id: LocalDefId) -> bool { let lint_root = body.source_scopes[terminator.source_info.scope] .local_data .as_ref() - .assert_crate_local() + .unwrap_crate_local() .lint_root; let span = terminator.source_info.span; diff --git a/compiler/rustc_mir_transform/src/function_item_references.rs b/compiler/rustc_mir_transform/src/function_item_references.rs index 73e47bb79f0b..38b5ccdb32e7 100644 --- a/compiler/rustc_mir_transform/src/function_item_references.rs +++ b/compiler/rustc_mir_transform/src/function_item_references.rs @@ -154,7 +154,7 @@ impl<'tcx> FunctionItemRefChecker<'_, 'tcx> { let lint_root = self.body.source_scopes[source_info.scope] .local_data .as_ref() - .assert_crate_local() + .unwrap_crate_local() .lint_root; // FIXME: use existing printing routines to print the function signature let fn_sig = self.tcx.fn_sig(fn_id).instantiate(self.tcx, fn_args); diff --git a/compiler/rustc_mir_transform/src/patch.rs b/compiler/rustc_mir_transform/src/patch.rs index d3d181f6cb2b..6a177faeac81 100644 --- a/compiler/rustc_mir_transform/src/patch.rs +++ b/compiler/rustc_mir_transform/src/patch.rs @@ -158,7 +158,7 @@ impl<'tcx> MirPatch<'tcx> { let index = self.next_local; self.next_local += 1; let mut new_decl = LocalDecl::new(ty, span); - **new_decl.local_info.as_mut().assert_crate_local() = local_info; + **new_decl.local_info.as_mut().unwrap_crate_local() = local_info; self.new_locals.push(new_decl); Local::new(index) } diff --git a/src/tools/clippy/clippy_lints/src/redundant_clone.rs b/src/tools/clippy/clippy_lints/src/redundant_clone.rs index fb1bc494bd94..cfa622aea582 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_clone.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_clone.rs @@ -205,7 +205,7 @@ impl<'tcx> LateLintPass<'tcx> for RedundantClone { let node = mir.source_scopes[scope] .local_data .as_ref() - .assert_crate_local() + .unwrap_crate_local() .lint_root; if let Some(snip) = span.get_source_text(cx) From c49e2df668838a38d9919a2457cde4e47e0f89fe Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Thu, 13 Feb 2025 14:27:06 +1100 Subject: [PATCH 181/255] Put a `BlockTailInfo` in `BlockFrame::TailExpr`. Because it has the same fields, and avoids the need to deconstruct the latter to construct the former. --- compiler/rustc_middle/src/mir/mod.rs | 2 +- compiler/rustc_mir_build/src/builder/block.rs | 5 +++-- .../rustc_mir_build/src/builder/expr/stmt.rs | 3 +-- compiler/rustc_mir_build/src/builder/mod.rs | 21 +++++-------------- 4 files changed, 10 insertions(+), 21 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 20cf358fd2dc..afde812fbf51 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -937,7 +937,7 @@ mod binding_form_impl { /// involved in borrow_check errors, e.g., explanations of where the /// temporaries come from, when their destructors are run, and/or how /// one might revise the code to satisfy the borrow checker's rules. -#[derive(Clone, Debug, TyEncodable, TyDecodable, HashStable)] +#[derive(Clone, Copy, Debug, PartialEq, Eq, TyEncodable, TyDecodable, HashStable)] pub struct BlockTailInfo { /// If `true`, then the value resulting from evaluating this tail /// expression is ignored by the block's expression context. diff --git a/compiler/rustc_mir_build/src/builder/block.rs b/compiler/rustc_mir_build/src/builder/block.rs index ba63a97de89f..93ee90011a58 100644 --- a/compiler/rustc_mir_build/src/builder/block.rs +++ b/compiler/rustc_mir_build/src/builder/block.rs @@ -331,8 +331,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { let expr = &this.thir[expr_id]; let tail_result_is_ignored = destination_ty.is_unit() || this.block_context.currently_ignores_tail_results(); - this.block_context - .push(BlockFrame::TailExpr { tail_result_is_ignored, span: expr.span }); + this.block_context.push(BlockFrame::TailExpr { + info: BlockTailInfo { tail_result_is_ignored, span: expr.span }, + }); block = this.expr_into_dest(destination, block, expr_id).into_block(); let popped = this.block_context.pop(); diff --git a/compiler/rustc_mir_build/src/builder/expr/stmt.rs b/compiler/rustc_mir_build/src/builder/expr/stmt.rs index 58090d3748b4..7f8a0a34c312 100644 --- a/compiler/rustc_mir_build/src/builder/expr/stmt.rs +++ b/compiler/rustc_mir_build/src/builder/expr/stmt.rs @@ -164,8 +164,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } } this.block_context.push(BlockFrame::TailExpr { - tail_result_is_ignored: true, - span: expr.span, + info: BlockTailInfo { tail_result_is_ignored: true, span: expr.span }, }); Some(expr.span) } else { diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index 2fe643e478e9..4348b7a4b4cc 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -112,16 +112,7 @@ enum BlockFrame { /// Evaluation is currently within the tail expression of a block. /// /// Example: `{ STMT_1; STMT_2; EXPR }` - TailExpr { - /// If true, then the surrounding context of the block ignores - /// the result of evaluating the block's tail expression. - /// - /// Example: `let _ = { STMT_1; EXPR };` - tail_result_is_ignored: bool, - - /// `Span` of the tail expression. - span: Span, - }, + TailExpr { info: BlockTailInfo }, /// Generic mark meaning that the block occurred as a subexpression /// where the result might be used. @@ -277,9 +268,7 @@ impl BlockContext { match bf { BlockFrame::SubExpr => continue, BlockFrame::Statement { .. } => break, - &BlockFrame::TailExpr { tail_result_is_ignored, span } => { - return Some(BlockTailInfo { tail_result_is_ignored, span }); - } + &BlockFrame::TailExpr { info } => return Some(info), } } @@ -302,9 +291,9 @@ impl BlockContext { // otherwise: use accumulated is_ignored state. Some( - BlockFrame::TailExpr { tail_result_is_ignored: ignored, .. } - | BlockFrame::Statement { ignores_expr_result: ignored }, - ) => *ignored, + BlockFrame::TailExpr { info: BlockTailInfo { tail_result_is_ignored: ign, .. } } + | BlockFrame::Statement { ignores_expr_result: ign }, + ) => *ign, } } } From e03c809402d1f60b158a86810a51ab4e6e40f114 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Fri, 14 Feb 2025 08:56:58 +1100 Subject: [PATCH 182/255] Remove some unnecessary `FIXME` comments. The comments didn't make much sense to me. I asked Matthew Jasper on Zulip about it and they said: > I think that at the time I wanted to replace all (or most of) this > with a reference to the HIR Id of the variable. I'll give this a look > to see if it's still a reasonable idea, but removing the comments is > fine. and then: > I don't think that changing this to an HirId would be better, > recovering the information from the HIR seems like too much effort in > exchange for making the MIR a little smaller. --- compiler/rustc_middle/src/mir/mod.rs | 3 --- 1 file changed, 3 deletions(-) diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index afde812fbf51..cd18d94d0ed8 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -961,7 +961,6 @@ pub struct LocalDecl<'tcx> { /// Temporaries and the return place are always mutable. pub mutability: Mutability, - // FIXME(matthewjasper) Don't store in this in `Body` pub local_info: ClearCrossCrate>>, /// The type of this local. @@ -971,7 +970,6 @@ pub struct LocalDecl<'tcx> { /// e.g., via `let x: T`, then we carry that type here. The MIR /// borrow checker needs this information since it can affect /// region inference. - // FIXME(matthewjasper) Don't store in this in `Body` pub user_ty: Option>, /// The *syntactic* (i.e., not visibility) source scope the local is defined @@ -1079,7 +1077,6 @@ pub enum LocalInfo<'tcx> { AggregateTemp, /// A temporary created for evaluation of some subexpression of some block's tail expression /// (with no intervening statement context). - // FIXME(matthewjasper) Don't store in this in `Body` BlockTailTemp(BlockTailInfo), /// A temporary created during evaluating `if` predicate, possibly for pattern matching for `let`s, /// and subject to Edition 2024 temporary lifetime rules From 0519a58f7a461e0d2f7342de421ce1176f7bfd8d Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Fri, 14 Feb 2025 16:29:23 +1100 Subject: [PATCH 183/255] Make `PassWhere` impl `Copy`. It's a very small and simple type. --- compiler/rustc_borrowck/src/polonius/dump.rs | 2 +- compiler/rustc_middle/src/mir/pretty.rs | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_borrowck/src/polonius/dump.rs b/compiler/rustc_borrowck/src/polonius/dump.rs index 5f9fa3612b8d..aa64a7c4e2a6 100644 --- a/compiler/rustc_borrowck/src/polonius/dump.rs +++ b/compiler/rustc_borrowck/src/polonius/dump.rs @@ -226,7 +226,7 @@ fn emit_polonius_mir<'tcx>( regioncx, closure_region_requirements, borrow_set, - pass_where.clone(), + pass_where, out, )?; diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 1e3b8d029e1b..5d58ce9b4094 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -22,7 +22,7 @@ pub(crate) const ALIGN: usize = 40; /// An indication of where we are in the control flow graph. Used for printing /// extra information in `dump_mir` -#[derive(Clone)] +#[derive(Clone, Copy)] pub enum PassWhere { /// We have not started dumping the control flow graph, but we are about to. BeforeCFG, From 2edaf684da10792f9e0fa97b8cccff3c270f7402 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Wed, 19 Feb 2025 10:35:06 +1100 Subject: [PATCH 184/255] Clarify a comment. --- compiler/rustc_middle/src/mir/terminator.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compiler/rustc_middle/src/mir/terminator.rs b/compiler/rustc_middle/src/mir/terminator.rs index 9357e19f7c57..49e0f619b1ec 100644 --- a/compiler/rustc_middle/src/mir/terminator.rs +++ b/compiler/rustc_middle/src/mir/terminator.rs @@ -86,7 +86,7 @@ impl SwitchTargets { self.iter().find_map(|(v, t)| (v == value).then_some(t)).unwrap_or_else(|| self.otherwise()) } - /// Adds a new target to the switch. But You cannot add an already present value. + /// Adds a new target to the switch. Panics if you add an already present value. #[inline] pub fn add_target(&mut self, value: u128, bb: BasicBlock) { let value = Pu128(value); From ff7533e1ac98cc8adac7db750d93595a7aa864f1 Mon Sep 17 00:00:00 2001 From: binarycat Date: Sun, 10 Nov 2024 15:04:48 -0600 Subject: [PATCH 185/255] rustdoc book: acknowlage --document-hidden-items --- src/doc/rustdoc/src/command-line-arguments.md | 3 ++- src/doc/rustdoc/src/unstable-features.md | 19 +++++++++++++++++++ .../write-documentation/the-doc-attribute.md | 5 ++--- 3 files changed, 23 insertions(+), 4 deletions(-) diff --git a/src/doc/rustdoc/src/command-line-arguments.md b/src/doc/rustdoc/src/command-line-arguments.md index f8fb52844727..b0e939dbe2d5 100644 --- a/src/doc/rustdoc/src/command-line-arguments.md +++ b/src/doc/rustdoc/src/command-line-arguments.md @@ -100,7 +100,8 @@ mod private { // this item is private and will not be documented } ``` -`--document-private-items` documents all items, even if they're not public. +`--document-private-items` includes all non-public items in the generated documentation except for `#[doc(hidden)]` items. Private items will be shown with a 🔒 icon. + ## `-L`/`--library-path`: where to look for dependencies diff --git a/src/doc/rustdoc/src/unstable-features.md b/src/doc/rustdoc/src/unstable-features.md index ebbe141b6f54..6a64000fdebb 100644 --- a/src/doc/rustdoc/src/unstable-features.md +++ b/src/doc/rustdoc/src/unstable-features.md @@ -258,6 +258,25 @@ themselves marked as unstable. To use any of these options, pass `-Z unstable-op the flag in question to Rustdoc on the command-line. To do this from Cargo, you can either use the `RUSTDOCFLAGS` environment variable or the `cargo rustdoc` command. +### `--document-hidden-items`: Show items that are `#[doc(hidden)]` + + +By default, `rustdoc` does not document items that are annotated with +[`#[doc(hidden)]`](write-documentation/the-doc-attribute.html#hidden). + +`--document-hidden-items` causes all items to be documented as if they did not have `#[doc(hidden)]`, except that hidden items will be shown with a 👻 icon. + +Here is a table that fully describes which items are documented with each combination of `--document-hidden-items` and `--document-private-items`: + + +| rustdoc flags | items that will be documented | +|---------------------------------|---------------------------------------| +| neither flag | only public items that are not hidden | +| only `--document-hidden-items` | all public items | +| only `--document-private-items` | all items that are not hidden | +| both flags | all items | + + ### `--markdown-before-content`: include rendered Markdown before the content * Tracking issue: [#44027](https://github.com/rust-lang/rust/issues/44027) diff --git a/src/doc/rustdoc/src/write-documentation/the-doc-attribute.md b/src/doc/rustdoc/src/write-documentation/the-doc-attribute.md index ff033aa14b82..45146993371f 100644 --- a/src/doc/rustdoc/src/write-documentation/the-doc-attribute.md +++ b/src/doc/rustdoc/src/write-documentation/the-doc-attribute.md @@ -230,9 +230,8 @@ If you want to know more about inlining rules, take a look at the -Any item annotated with `#[doc(hidden)]` will not appear in the documentation, unless -the `strip-hidden` pass is removed. Re-exported items where one of its ancestors has -`#[doc(hidden)]` will be considered the same as private. +Any item annotated with `#[doc(hidden)]` will not appear in the documentation, +unless the [`--document-hidden-items`](../unstable-features.md#document-hidden-items) flag is used. You can find more information in the [`re-exports` chapter](./re-exports.md). From 69c7e1d02f1d77ac75e40fe9eef18df271dc3a13 Mon Sep 17 00:00:00 2001 From: Folkert de Vries Date: Fri, 17 Jan 2025 14:57:18 +0100 Subject: [PATCH 186/255] add more s390x target features The target feature names are, right now, based on the llvm target feature names. These mostly line up well with the names of [Facility Inidications](https://publibfp.dhe.ibm.com/epubs/pdf/a227832d.pdf#page=301) names. The linux kernel uses shorter, more cryptic names. (e.g. "vector" is `vx`). We can deviate from the llvm names, but the CPU vendor (IBM) does not appear to use e.g. `vx` for what they call `vector`. There are a number of implied target features between the vector facilities (based on the [Facility Inidications](https://publibfp.dhe.ibm.com/epubs/pdf/a227832d.pdf#page=301) table): - 129 The vector facility for z/Architecture is installed in the z/Architecture architectural mode. - 134 The vector packed decimal facility is installed in the z/Architecture architectural mode. When bit 134 is one, bit 129 is also one. - 135 The vector enhancements facility 1 is installed in the z/Architecture architectural mode. When bit 135 is one, bit 129 is also one. - 148 The vector-enhancements facility 2 is installed in the z/Architecture architectural mode. When bit 148 is one, bits 129 and 135 are also one. - 152 The vector-packed-decimal-enhancement facility 1 is installed in the z/Architecture architectural mode. When bit 152 is one, bits 129 and 134 are also one. - 165 The neural-network-processing-assist facility is installed in the z/Architecture architectural mode. When bit 165 is one, bit 129 is also one. - 192 The vector-packed-decimal-enhancement facility 2 is installed in the z/Architecture architectural mode. When bit 192 is one, bits 129, 134, and 152 are also one. And then there are a number of facilities without any implied target features - 45 The distinct-operands, fast-BCR-serialization, high-word, and population-count facilities, the interlocked-access facility 1, and the load/store-oncondition facility 1 are installed in the z/Architecture architectural mode. - 73 The transactional-execution facility is installed in the z/Architecture architectural mode. Bit 49 is one when bit 73 is one. - 133 The guarded-storage facility is installed in the z/Architecture architectural mode. - 150 The enhanced-sort facility is installed in the z/Architecture architectural mode. - 151 The DEFLATE-conversion facility is installed in the z/Architecture architectural mode. The added target features are those that have ISA implications, can be queried at runtime, and have LLVM support. LLVM [defines more target features](https://github.com/llvm/llvm-project/blob/d49a2d2bc9c65c787bfa04ac8ece614da48a8cd5/llvm/lib/Target/SystemZ/SystemZFeatures.td), but I'm not sure those are useful. They can always be added later, and can already be set globally using `-Ctarget-feature`. --- compiler/rustc_target/src/target_features.rs | 21 +++++++++++++++++++- tests/ui/check-cfg/target_feature.stderr | 11 ++++++++++ 2 files changed, 31 insertions(+), 1 deletion(-) diff --git a/compiler/rustc_target/src/target_features.rs b/compiler/rustc_target/src/target_features.rs index bb41d03e87f5..b98bca60c9de 100644 --- a/compiler/rustc_target/src/target_features.rs +++ b/compiler/rustc_target/src/target_features.rs @@ -611,7 +611,26 @@ static LOONGARCH_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ const IBMZ_FEATURES: &[(&str, Stability, ImpliedFeatures)] = &[ // tidy-alphabetical-start ("backchain", Unstable(sym::s390x_target_feature), &[]), + ("deflate-conversion", Unstable(sym::s390x_target_feature), &[]), + ("enhanced-sort", Unstable(sym::s390x_target_feature), &[]), + ("guarded-storage", Unstable(sym::s390x_target_feature), &[]), + ("high-word", Unstable(sym::s390x_target_feature), &[]), + ("nnp-assist", Unstable(sym::s390x_target_feature), &["vector"]), + ("transactional-execution", Unstable(sym::s390x_target_feature), &[]), ("vector", Unstable(sym::s390x_target_feature), &[]), + ("vector-enhancements-1", Unstable(sym::s390x_target_feature), &["vector"]), + ("vector-enhancements-2", Unstable(sym::s390x_target_feature), &["vector-enhancements-1"]), + ("vector-packed-decimal", Unstable(sym::s390x_target_feature), &["vector"]), + ( + "vector-packed-decimal-enhancement", + Unstable(sym::s390x_target_feature), + &["vector-packed-decimal"], + ), + ( + "vector-packed-decimal-enhancement-2", + Unstable(sym::s390x_target_feature), + &["vector-packed-decimal-enhancement"], + ), // tidy-alphabetical-end ]; @@ -768,7 +787,7 @@ impl Target { /// the first list contains target features that must be enabled for ABI reasons, /// and the second list contains target feature that must be disabled for ABI reasons. /// - /// These features are automatically appended to whatever the target spec sats as default + /// These features are automatically appended to whatever the target spec sets as default /// features for the target. /// /// All features enabled/disabled via `-Ctarget-features` and `#[target_features]` are checked diff --git a/tests/ui/check-cfg/target_feature.stderr b/tests/ui/check-cfg/target_feature.stderr index 70852423bdbe..51808c5c7bcd 100644 --- a/tests/ui/check-cfg/target_feature.stderr +++ b/tests/ui/check-cfg/target_feature.stderr @@ -58,6 +58,7 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `cssc` `d` `d32` +`deflate-conversion` `dit` `doloop` `dotprod` @@ -72,6 +73,7 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `ecv` `edsp` `elrw` +`enhanced-sort` `ermsb` `exception-handling` `extended-const` @@ -109,11 +111,13 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `frintts` `fxsr` `gfni` +`guarded-storage` `hard-float` `hard-float-abi` `hard-tp` `hbc` `high-registers` +`high-word` `hvx` `hvx-length128b` `hwdiv` @@ -151,6 +155,7 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `multivalue` `mutable-globals` `neon` +`nnp-assist` `nontrapping-fptoint` `nvic` `paca` @@ -229,6 +234,7 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `thumb-mode` `thumb2` `tme` +`transactional-execution` `trust` `trustzone` `ual` @@ -262,6 +268,11 @@ LL | cfg!(target_feature = "_UNEXPECTED_VALUE"); `vdspv1` `vdspv2` `vector` +`vector-enhancements-1` +`vector-enhancements-2` +`vector-packed-decimal` +`vector-packed-decimal-enhancement` +`vector-packed-decimal-enhancement-2` `vfp2` `vfp3` `vfp4` From 43c2b0086a60ad9864af5ead49b058e8d8ef1de8 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Fri, 21 Feb 2025 07:54:46 +1100 Subject: [PATCH 187/255] Store `TyCtxt` instead of `Map` in some iterators. --- compiler/rustc_middle/src/hir/map.rs | 38 ++++++++++++++-------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 3436c2f372f4..a6ae3eb44f6c 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -29,21 +29,21 @@ pub struct Map<'hir> { /// An iterator that walks up the ancestor tree of a given `HirId`. /// Constructed using `tcx.hir().parent_iter(hir_id)`. -struct ParentHirIterator<'hir> { +struct ParentHirIterator<'tcx> { current_id: HirId, - map: Map<'hir>, + tcx: TyCtxt<'tcx>, // Cache the current value of `hir_owner_nodes` to avoid repeatedly calling the same query for // the same owner, which will uselessly record many times the same query dependency. - current_owner_nodes: Option<&'hir OwnerNodes<'hir>>, + current_owner_nodes: Option<&'tcx OwnerNodes<'tcx>>, } -impl<'hir> ParentHirIterator<'hir> { - fn new(map: Map<'hir>, current_id: HirId) -> ParentHirIterator<'hir> { - ParentHirIterator { current_id, map, current_owner_nodes: None } +impl<'tcx> ParentHirIterator<'tcx> { + fn new(tcx: TyCtxt<'tcx>, current_id: HirId) -> ParentHirIterator<'tcx> { + ParentHirIterator { current_id, tcx, current_owner_nodes: None } } } -impl<'hir> Iterator for ParentHirIterator<'hir> { +impl<'tcx> Iterator for ParentHirIterator<'tcx> { type Item = HirId; fn next(&mut self) -> Option { @@ -56,10 +56,10 @@ impl<'hir> Iterator for ParentHirIterator<'hir> { let parent_id = if local_id == ItemLocalId::ZERO { // We go from an owner to its parent, so clear the cache. self.current_owner_nodes = None; - self.map.tcx.hir_owner_parent(owner) + self.tcx.hir_owner_parent(owner) } else { let owner_nodes = - self.current_owner_nodes.get_or_insert_with(|| self.map.tcx.hir_owner_nodes(owner)); + self.current_owner_nodes.get_or_insert_with(|| self.tcx.hir_owner_nodes(owner)); let parent_local_id = owner_nodes.nodes[local_id].parent; // HIR indexing should have checked that. debug_assert_ne!(parent_local_id, local_id); @@ -75,32 +75,32 @@ impl<'hir> Iterator for ParentHirIterator<'hir> { /// An iterator that walks up the ancestor tree of a given `HirId`. /// Constructed using `tcx.hir().parent_owner_iter(hir_id)`. -pub struct ParentOwnerIterator<'hir> { +pub struct ParentOwnerIterator<'tcx> { current_id: HirId, - map: Map<'hir>, + tcx: TyCtxt<'tcx>, } -impl<'hir> Iterator for ParentOwnerIterator<'hir> { - type Item = (OwnerId, OwnerNode<'hir>); +impl<'tcx> Iterator for ParentOwnerIterator<'tcx> { + type Item = (OwnerId, OwnerNode<'tcx>); fn next(&mut self) -> Option { if self.current_id.local_id.index() != 0 { self.current_id.local_id = ItemLocalId::ZERO; - let node = self.map.tcx.hir_owner_node(self.current_id.owner); + let node = self.tcx.hir_owner_node(self.current_id.owner); return Some((self.current_id.owner, node)); } if self.current_id == CRATE_HIR_ID { return None; } - let parent_id = self.map.tcx.hir_def_key(self.current_id.owner.def_id).parent; + let parent_id = self.tcx.hir_def_key(self.current_id.owner.def_id).parent; let parent_id = parent_id.map_or(CRATE_OWNER_ID, |local_def_index| { let def_id = LocalDefId { local_def_index }; - self.map.tcx.local_def_id_to_hir_id(def_id).owner + self.tcx.local_def_id_to_hir_id(def_id).owner }); self.current_id = HirId::make_owner(parent_id.def_id); - let node = self.map.tcx.hir_owner_node(self.current_id.owner); + let node = self.tcx.hir_owner_node(self.current_id.owner); Some((self.current_id.owner, node)) } } @@ -505,7 +505,7 @@ impl<'hir> Map<'hir> { /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] pub fn parent_id_iter(self, current_id: HirId) -> impl Iterator + 'hir { - ParentHirIterator::new(self, current_id) + ParentHirIterator::new(self.tcx, current_id) } /// Returns an iterator for the nodes in the ancestor tree of the `current_id` @@ -519,7 +519,7 @@ impl<'hir> Map<'hir> { /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] pub fn parent_owner_iter(self, current_id: HirId) -> ParentOwnerIterator<'hir> { - ParentOwnerIterator { current_id, map: self } + ParentOwnerIterator { current_id, tcx: self.tcx } } /// Checks if the node is left-hand side of an assignment. From d32eeb86b2f3e8e08ea40da6e374e754ed790cb4 Mon Sep 17 00:00:00 2001 From: Thalia Archibald Date: Tue, 4 Feb 2025 19:27:55 -0800 Subject: [PATCH 188/255] Implement read_buf for WASI stdin --- library/std/src/sys/pal/wasi/stdio.rs | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/library/std/src/sys/pal/wasi/stdio.rs b/library/std/src/sys/pal/wasi/stdio.rs index d08b772e5fc7..fb21cb4d393d 100644 --- a/library/std/src/sys/pal/wasi/stdio.rs +++ b/library/std/src/sys/pal/wasi/stdio.rs @@ -1,7 +1,7 @@ #![forbid(unsafe_op_in_unsafe_fn)] use super::fd::WasiFd; -use crate::io::{self, IoSlice, IoSliceMut}; +use crate::io::{self, BorrowedCursor, IoSlice, IoSliceMut}; use crate::mem::ManuallyDrop; use crate::os::raw; use crate::os::wasi::io::{AsRawFd, FromRawFd}; @@ -28,6 +28,10 @@ impl io::Read for Stdin { self.read_vectored(&mut [IoSliceMut::new(data)]) } + fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> io::Result<()> { + ManuallyDrop::new(unsafe { WasiFd::from_raw_fd(self.as_raw_fd()) }).read_buf(buf) + } + fn read_vectored(&mut self, data: &mut [IoSliceMut<'_>]) -> io::Result { ManuallyDrop::new(unsafe { WasiFd::from_raw_fd(self.as_raw_fd()) }).read(data) } @@ -64,6 +68,7 @@ impl io::Write for Stdout { fn is_write_vectored(&self) -> bool { true } + fn flush(&mut self) -> io::Result<()> { Ok(()) } From 0a7ab1d6df4a2cfac819b0bada85b9142ac8ba26 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 23:05:38 +0000 Subject: [PATCH 189/255] More sophisticated span trimming --- compiler/rustc_errors/src/lib.rs | 45 +- .../ui/borrow_deref_ref_unfixable.stderr | 5 +- .../tests/ui/fn_to_numeric_cast_any.stderr | 81 +- .../clippy/tests/ui/implicit_hasher.stderr | 15 +- src/tools/clippy/tests/ui/literals.stderr | 5 +- .../clippy/tests/ui/octal_escapes.stderr | 75 +- .../tests/ui/suspicious_to_owned.stderr | 20 +- tests/ui/argument-suggestions/basic.stderr | 10 +- .../display-is-suggestable.stderr | 5 +- .../extern-fn-arg-names.stderr | 5 +- .../argument-suggestions/issue-97197.stderr | 5 +- .../argument-suggestions/issue-98894.stderr | 5 +- .../argument-suggestions/issue-98897.stderr | 5 +- .../argument-suggestions/issue-99482.stderr | 5 +- .../missing_arguments.stderr | 5 +- .../associated-const-ambiguity-report.stderr | 10 +- .../issue-109768.stderr | 5 +- .../associated-item-enum.stderr | 15 +- tests/ui/binop/placement-syntax.stderr | 5 +- .../borrowck-struct-update-with-dtor.stderr | 5 +- ...rowck-unsafe-static-mutable-borrows.stderr | 5 +- tests/ui/borrowck/issue-85765-closure.stderr | 15 +- tests/ui/borrowck/issue-85765.stderr | 15 +- tests/ui/c-variadic/variadic-ffi-1.stderr | 10 +- .../ice-cast-type-with-error-124848.stderr | 5 +- .../cfg-attr-parse.stderr | 5 +- tests/ui/consts/const_let_assign2.stderr | 5 +- tests/ui/coroutine/issue-102645.stderr | 5 +- tests/ui/coroutine/resume-arg-outlives.stderr | 5 +- .../ui/coverage-attr/bad-attr-ice.feat.stderr | 6 +- .../coverage-attr/bad-attr-ice.nofeat.stderr | 6 +- tests/ui/coverage-attr/bad-syntax.stderr | 20 +- tests/ui/coverage-attr/word-only.stderr | 72 +- .../struct_destructure_fail.stderr | 5 +- .../diagnostic_namespace/suggest_typos.stderr | 10 +- tests/ui/error-codes/E0027.stderr | 45 +- tests/ui/error-codes/E0057.stderr | 5 +- tests/ui/error-codes/E0060.stderr | 5 +- tests/ui/error-codes/E0061.stderr | 10 +- tests/ui/error-codes/E0259.stderr | 3 +- tests/ui/error-codes/E0260.stderr | 3 +- tests/ui/extern/extern-crate-rename.stderr | 5 +- ...-gate-unboxed-closures-manual-impls.stderr | 5 +- .../no-inline-literals-out-of-range.stderr | 5 +- tests/ui/fn/param-mismatch-foreign.stderr | 5 +- .../trait-bounds/issue-58451.stderr | 5 +- ...e-to-map-to-reearlybound-ice-108580.stderr | 5 +- .../in-trait/refine-captures.stderr | 15 +- .../must_outlive_least_region_or_bound.stderr | 10 +- .../extern-crate-self-fail.stderr | 5 +- ...-crate-rename-suggestion-formatting.stderr | 3 +- .../ui/imports/issue-45829/import-self.stderr | 5 +- .../ui/imports/issue-45829/issue-45829.stderr | 5 +- .../issue-45829/rename-extern-vs-use.stderr | 3 +- .../imports/issue-45829/rename-extern.stderr | 3 +- .../issue-45829/rename-use-vs-extern.stderr | 5 +- .../issue-45829/rename-with-path.stderr | 5 +- tests/ui/imports/issue-45829/rename.stderr | 5 +- ...ultiple-extern-by-macro-for-buitlin.stderr | 3 +- ...multiple-extern-by-macro-for-custom.stderr | 3 +- ...ultiple-extern-by-macro-for-inexist.stderr | 3 +- tests/ui/imports/no-std-inject.stderr | 5 +- tests/ui/include-macros/parent_dir.stderr | 5 +- tests/ui/issues/issue-20225.stderr | 15 +- tests/ui/issues/issue-23073.stderr | 5 +- .../issue-76077-1.stderr | 5 +- .../lifetimes/borrowck-let-suggestion.stderr | 2 +- tests/ui/lifetimes/issue-26638.stderr | 5 +- tests/ui/lint/static-mut-refs.e2021.stderr | 5 +- tests/ui/lint/static-mut-refs.e2024.stderr | 5 +- tests/ui/lint/type-overflow.stderr | 10 +- .../malformed/malformed-special-attrs.stderr | 5 +- tests/ui/methods/method-call-err-msg.stderr | 15 +- .../mismatched_types/closure-arg-count.stderr | 15 +- tests/ui/mismatched_types/issue-13033.stderr | 5 +- .../mismatch-args-crash-issue-128848.stderr | 5 +- .../mismatch-args-crash-issue-130400.stderr | 5 +- .../mismatch-args-vargs-issue-130372.stderr | 5 +- .../overloaded-calls-bad.stderr | 5 +- .../trait-impl-fn-incompatibility.stderr | 5 +- ...local-static-mut-borrow-outlives-fn.stderr | 5 +- tests/ui/not-enough-arguments.stderr | 10 +- tests/ui/obsolete-in-place/bad.stderr | 5 +- .../ui/on-unimplemented/bad-annotation.stderr | 6 +- tests/ui/on-unimplemented/issue-104140.stderr | 10 +- tests/ui/panic-handler/weak-lang-item.stderr | 3 +- tests/ui/parser/emoji-identifiers.stderr | 5 +- .../extern-crate-unexpected-token.stderr | 5 +- .../misspelled-keywords/const-fn.stderr | 5 +- .../usefulness/unstable-gated-fields.stderr | 30 +- .../region-object-lifetime-in-coercion.stderr | 10 +- .../regions/regions-proc-bound-capture.stderr | 5 +- ...nflict-extern-crate-vs-extern-crate.stderr | 3 +- ...lve-conflict-import-vs-extern-crate.stderr | 5 +- ..._types_not_allow_call_with_no_deref.stderr | 5 +- tests/ui/span/missing-unit-argument.stderr | 30 +- .../statics/static-mut-shared-parens.stderr | 5 +- tests/ui/statics/static-mut-xc.stderr | 5 +- .../non-exhaustive-ctor.disabled.stderr | 5 +- .../non-exhaustive-ctor.enabled.stderr | 5 +- .../args-instead-of-tuple-errors.stderr | 5 +- .../suggestions/args-instead-of-tuple.stderr | 5 +- tests/ui/suggestions/bad-hex-float-lit.stderr | 5 +- .../suggestions/incorrect-variant-literal.svg | 978 +++++++++--------- ...suggest-deref-in-match-issue-132784.stderr | 10 +- .../suggest-field-through-deref.stderr | 10 +- .../suggest-let-for-assignment.stderr | 5 +- .../suggest-trait-in-ufcs-in-hrtb.stderr | 10 +- .../inaccessible-test-modules.stderr | 2 +- ...priority-higher-than-other-inherent.stderr | 5 +- .../type-check/point-at-inference-4.stderr | 5 +- tests/ui/typeck/issue-110052.stderr | 10 +- ...-missing-inaccessible-field-pattern.stderr | 15 +- tests/ui/typeck/struct-enum-wrong-args.stderr | 20 +- 114 files changed, 932 insertions(+), 1136 deletions(-) diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 6fce1fade266..0016dacc8b23 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -71,7 +71,7 @@ use rustc_macros::{Decodable, Encodable}; pub use rustc_span::ErrorGuaranteed; pub use rustc_span::fatal_error::{FatalError, FatalErrorMarker}; use rustc_span::source_map::SourceMap; -use rustc_span::{DUMMY_SP, Loc, Span}; +use rustc_span::{BytePos, DUMMY_SP, Loc, Span}; pub use snippet::Style; // Used by external projects such as `rust-gpu`. // See https://github.com/rust-lang/rust/pull/115393. @@ -237,10 +237,9 @@ impl SubstitutionPart { /// it with "abx" is, since the "c" character is lost. pub fn is_destructive_replacement(&self, sm: &SourceMap) -> bool { self.is_replacement(sm) - && !sm.span_to_snippet(self.span).is_ok_and(|snippet| { - self.snippet.trim_start().starts_with(snippet.trim_start()) - || self.snippet.trim_end().ends_with(snippet.trim_end()) - }) + && !sm + .span_to_snippet(self.span) + .is_ok_and(|snippet| as_substr(snippet.trim(), self.snippet.trim()).is_some()) } fn replaces_meaningful_content(&self, sm: &SourceMap) -> bool { @@ -257,16 +256,40 @@ impl SubstitutionPart { let Ok(snippet) = sm.span_to_snippet(self.span) else { return; }; - if self.snippet.starts_with(&snippet) { - self.span = self.span.shrink_to_hi(); - self.snippet = self.snippet[snippet.len()..].to_string(); - } else if self.snippet.ends_with(&snippet) { - self.span = self.span.shrink_to_lo(); - self.snippet = self.snippet[..self.snippet.len() - snippet.len()].to_string(); + + if let Some((prefix, substr, suffix)) = as_substr(&snippet, &self.snippet) { + self.span = Span::new( + self.span.lo() + BytePos(prefix as u32), + self.span.hi() - BytePos(suffix as u32), + self.span.ctxt(), + self.span.parent(), + ); + self.snippet = substr.to_string(); } } } +/// Given an original string like `AACC`, and a suggestion like `AABBCC`, try to detect +/// the case where a substring of the suggestion is "sandwiched" in the original, like +/// `BB` is. Return the length of the prefix, the "trimmed" suggestion, and the length +/// of the suffix. +fn as_substr<'a>(original: &'a str, suggestion: &'a str) -> Option<(usize, &'a str, usize)> { + let common_prefix = original + .chars() + .zip(suggestion.chars()) + .take_while(|(c1, c2)| c1 == c2) + .map(|(c, _)| c.len_utf8()) + .sum(); + let original = &original[common_prefix..]; + let suggestion = &suggestion[common_prefix..]; + if suggestion.ends_with(original) { + let common_suffix = original.len(); + Some((common_prefix, &suggestion[..suggestion.len() - original.len()], common_suffix)) + } else { + None + } +} + impl CodeSuggestion { /// Returns the assembled code suggestions, whether they should be shown with an underline /// and whether the substitution only differs in capitalization. diff --git a/src/tools/clippy/tests/ui/borrow_deref_ref_unfixable.stderr b/src/tools/clippy/tests/ui/borrow_deref_ref_unfixable.stderr index 71f43af46c24..b8a0eedeb9ee 100644 --- a/src/tools/clippy/tests/ui/borrow_deref_ref_unfixable.stderr +++ b/src/tools/clippy/tests/ui/borrow_deref_ref_unfixable.stderr @@ -13,9 +13,8 @@ LL + let x: &str = s; | help: if you would like to deref, try using `&**` | -LL - let x: &str = &*s; -LL + let x: &str = &**s; - | +LL | let x: &str = &**s; + | + error: aborting due to 1 previous error diff --git a/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr b/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr index c069c9d1672d..895297a04006 100644 --- a/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr +++ b/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr @@ -8,9 +8,8 @@ LL | let _ = foo as i8; = help: to override `-D warnings` add `#[allow(clippy::fn_to_numeric_cast_any)]` help: did you mean to invoke the function? | -LL - let _ = foo as i8; -LL + let _ = foo() as i8; - | +LL | let _ = foo() as i8; + | ++ error: casting function pointer `foo` to `i16` --> tests/ui/fn_to_numeric_cast_any.rs:26:13 @@ -20,9 +19,8 @@ LL | let _ = foo as i16; | help: did you mean to invoke the function? | -LL - let _ = foo as i16; -LL + let _ = foo() as i16; - | +LL | let _ = foo() as i16; + | ++ error: casting function pointer `foo` to `i32` --> tests/ui/fn_to_numeric_cast_any.rs:28:13 @@ -32,9 +30,8 @@ LL | let _ = foo as i32; | help: did you mean to invoke the function? | -LL - let _ = foo as i32; -LL + let _ = foo() as i32; - | +LL | let _ = foo() as i32; + | ++ error: casting function pointer `foo` to `i64` --> tests/ui/fn_to_numeric_cast_any.rs:30:13 @@ -44,9 +41,8 @@ LL | let _ = foo as i64; | help: did you mean to invoke the function? | -LL - let _ = foo as i64; -LL + let _ = foo() as i64; - | +LL | let _ = foo() as i64; + | ++ error: casting function pointer `foo` to `i128` --> tests/ui/fn_to_numeric_cast_any.rs:32:13 @@ -56,9 +52,8 @@ LL | let _ = foo as i128; | help: did you mean to invoke the function? | -LL - let _ = foo as i128; -LL + let _ = foo() as i128; - | +LL | let _ = foo() as i128; + | ++ error: casting function pointer `foo` to `isize` --> tests/ui/fn_to_numeric_cast_any.rs:34:13 @@ -68,9 +63,8 @@ LL | let _ = foo as isize; | help: did you mean to invoke the function? | -LL - let _ = foo as isize; -LL + let _ = foo() as isize; - | +LL | let _ = foo() as isize; + | ++ error: casting function pointer `foo` to `u8` --> tests/ui/fn_to_numeric_cast_any.rs:37:13 @@ -80,9 +74,8 @@ LL | let _ = foo as u8; | help: did you mean to invoke the function? | -LL - let _ = foo as u8; -LL + let _ = foo() as u8; - | +LL | let _ = foo() as u8; + | ++ error: casting function pointer `foo` to `u16` --> tests/ui/fn_to_numeric_cast_any.rs:39:13 @@ -92,9 +85,8 @@ LL | let _ = foo as u16; | help: did you mean to invoke the function? | -LL - let _ = foo as u16; -LL + let _ = foo() as u16; - | +LL | let _ = foo() as u16; + | ++ error: casting function pointer `foo` to `u32` --> tests/ui/fn_to_numeric_cast_any.rs:41:13 @@ -104,9 +96,8 @@ LL | let _ = foo as u32; | help: did you mean to invoke the function? | -LL - let _ = foo as u32; -LL + let _ = foo() as u32; - | +LL | let _ = foo() as u32; + | ++ error: casting function pointer `foo` to `u64` --> tests/ui/fn_to_numeric_cast_any.rs:43:13 @@ -116,9 +107,8 @@ LL | let _ = foo as u64; | help: did you mean to invoke the function? | -LL - let _ = foo as u64; -LL + let _ = foo() as u64; - | +LL | let _ = foo() as u64; + | ++ error: casting function pointer `foo` to `u128` --> tests/ui/fn_to_numeric_cast_any.rs:45:13 @@ -128,9 +118,8 @@ LL | let _ = foo as u128; | help: did you mean to invoke the function? | -LL - let _ = foo as u128; -LL + let _ = foo() as u128; - | +LL | let _ = foo() as u128; + | ++ error: casting function pointer `foo` to `usize` --> tests/ui/fn_to_numeric_cast_any.rs:47:13 @@ -140,9 +129,8 @@ LL | let _ = foo as usize; | help: did you mean to invoke the function? | -LL - let _ = foo as usize; -LL + let _ = foo() as usize; - | +LL | let _ = foo() as usize; + | ++ error: casting function pointer `Struct::static_method` to `usize` --> tests/ui/fn_to_numeric_cast_any.rs:52:13 @@ -152,9 +140,8 @@ LL | let _ = Struct::static_method as usize; | help: did you mean to invoke the function? | -LL - let _ = Struct::static_method as usize; -LL + let _ = Struct::static_method() as usize; - | +LL | let _ = Struct::static_method() as usize; + | ++ error: casting function pointer `f` to `usize` --> tests/ui/fn_to_numeric_cast_any.rs:57:5 @@ -164,8 +151,7 @@ LL | f as usize | help: did you mean to invoke the function? | -LL - f as usize -LL + f() as usize +LL | f() as usize | error: casting function pointer `T::static_method` to `usize` @@ -176,8 +162,7 @@ LL | T::static_method as usize | help: did you mean to invoke the function? | -LL - T::static_method as usize -LL + T::static_method() as usize +LL | T::static_method() as usize | error: casting function pointer `(clos as fn(u32) -> u32)` to `usize` @@ -188,9 +173,8 @@ LL | let _ = (clos as fn(u32) -> u32) as usize; | help: did you mean to invoke the function? | -LL - let _ = (clos as fn(u32) -> u32) as usize; -LL + let _ = (clos as fn(u32) -> u32)() as usize; - | +LL | let _ = (clos as fn(u32) -> u32)() as usize; + | ++ error: casting function pointer `foo` to `*const ()` --> tests/ui/fn_to_numeric_cast_any.rs:74:13 @@ -200,9 +184,8 @@ LL | let _ = foo as *const (); | help: did you mean to invoke the function? | -LL - let _ = foo as *const (); -LL + let _ = foo() as *const (); - | +LL | let _ = foo() as *const (); + | ++ error: aborting due to 17 previous errors diff --git a/src/tools/clippy/tests/ui/implicit_hasher.stderr b/src/tools/clippy/tests/ui/implicit_hasher.stderr index 6e964c65a2e4..01d08a1bd9b2 100644 --- a/src/tools/clippy/tests/ui/implicit_hasher.stderr +++ b/src/tools/clippy/tests/ui/implicit_hasher.stderr @@ -78,9 +78,8 @@ LL | pub fn map(map: &mut HashMap) {} | help: add a type parameter for `BuildHasher` | -LL - pub fn map(map: &mut HashMap) {} -LL + pub fn map(map: &mut HashMap) {} - | +LL | pub fn map(map: &mut HashMap) {} + | +++++++++++++++++++++++++++++ +++ error: parameter of type `HashSet` should be generalized over different hashers --> tests/ui/implicit_hasher.rs:70:22 @@ -90,9 +89,8 @@ LL | pub fn set(set: &mut HashSet) {} | help: add a type parameter for `BuildHasher` | -LL - pub fn set(set: &mut HashSet) {} -LL + pub fn set(set: &mut HashSet) {} - | +LL | pub fn set(set: &mut HashSet) {} + | +++++++++++++++++++++++++++++ +++ error: impl for `HashMap` should be generalized over different hashers --> tests/ui/implicit_hasher.rs:76:43 @@ -116,9 +114,8 @@ LL | pub async fn election_vote(_data: HashMap) {} | help: add a type parameter for `BuildHasher` | -LL - pub async fn election_vote(_data: HashMap) {} -LL + pub async fn election_vote(_data: HashMap) {} - | +LL | pub async fn election_vote(_data: HashMap) {} + | +++++++++++++++++++++++++++++ +++ error: aborting due to 9 previous errors diff --git a/src/tools/clippy/tests/ui/literals.stderr b/src/tools/clippy/tests/ui/literals.stderr index a9192825b354..576b38a47d2d 100644 --- a/src/tools/clippy/tests/ui/literals.stderr +++ b/src/tools/clippy/tests/ui/literals.stderr @@ -99,9 +99,8 @@ LL + let fail8 = 123; | help: if you mean to use an octal constant, use `0o` | -LL - let fail8 = 0123; -LL + let fail8 = 0o123; - | +LL | let fail8 = 0o123; + | + error: integer type suffix should not be separated by an underscore --> tests/ui/literals.rs:48:16 diff --git a/src/tools/clippy/tests/ui/octal_escapes.stderr b/src/tools/clippy/tests/ui/octal_escapes.stderr index c8a89ac8bea4..61c781e316ef 100644 --- a/src/tools/clippy/tests/ui/octal_escapes.stderr +++ b/src/tools/clippy/tests/ui/octal_escapes.stderr @@ -14,9 +14,8 @@ LL + let _bad1 = "\x1b[0m"; | help: if a null escape is intended, disambiguate using | -LL - let _bad1 = "\033[0m"; -LL + let _bad1 = "\x0033[0m"; - | +LL | let _bad1 = "\x0033[0m"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:6:19 @@ -31,9 +30,8 @@ LL + let _bad2 = b"\x1b[0m"; | help: if a null escape is intended, disambiguate using | -LL - let _bad2 = b"\033[0m"; -LL + let _bad2 = b"\x0033[0m"; - | +LL | let _bad2 = b"\x0033[0m"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:7:20 @@ -48,9 +46,8 @@ LL + let _bad3 = "\\\x1b[0m"; | help: if a null escape is intended, disambiguate using | -LL - let _bad3 = "\\\033[0m"; -LL + let _bad3 = "\\\x0033[0m"; - | +LL | let _bad3 = "\\\x0033[0m"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:9:18 @@ -65,9 +62,8 @@ LL + let _bad4 = "\x0a34567"; | help: if a null escape is intended, disambiguate using | -LL - let _bad4 = "\01234567"; -LL + let _bad4 = "\x001234567"; - | +LL | let _bad4 = "\x001234567"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:10:20 @@ -77,14 +73,12 @@ LL | let _bad5 = "\0\03"; | help: if an octal escape is intended, use a hex escape instead | -LL - let _bad5 = "\0\03"; -LL + let _bad5 = "\0\x03"; - | +LL | let _bad5 = "\0\x03"; + | + help: if a null escape is intended, disambiguate using | -LL - let _bad5 = "\0\03"; -LL + let _bad5 = "\0\x0003"; - | +LL | let _bad5 = "\0\x0003"; + | +++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:11:23 @@ -99,9 +93,8 @@ LL + let _bad6 = "Text-\x2d\077-MoreText"; | help: if a null escape is intended, disambiguate using | -LL - let _bad6 = "Text-\055\077-MoreText"; -LL + let _bad6 = "Text-\x0055\077-MoreText"; - | +LL | let _bad6 = "Text-\x0055\077-MoreText"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:11:27 @@ -116,9 +109,8 @@ LL + let _bad6 = "Text-\055\x3f-MoreText"; | help: if a null escape is intended, disambiguate using | -LL - let _bad6 = "Text-\055\077-MoreText"; -LL + let _bad6 = "Text-\055\x0077-MoreText"; - | +LL | let _bad6 = "Text-\055\x0077-MoreText"; + | ++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:14:31 @@ -128,14 +120,12 @@ LL | let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; | help: if an octal escape is intended, use a hex escape instead | -LL - let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; -LL + let _bad7 = "EvenMoreText-\x01\02-ShortEscapes"; - | +LL | let _bad7 = "EvenMoreText-\x01\02-ShortEscapes"; + | + help: if a null escape is intended, disambiguate using | -LL - let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; -LL + let _bad7 = "EvenMoreText-\x0001\02-ShortEscapes"; - | +LL | let _bad7 = "EvenMoreText-\x0001\02-ShortEscapes"; + | +++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:14:34 @@ -145,14 +135,12 @@ LL | let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; | help: if an octal escape is intended, use a hex escape instead | -LL - let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; -LL + let _bad7 = "EvenMoreText-\01\x02-ShortEscapes"; - | +LL | let _bad7 = "EvenMoreText-\01\x02-ShortEscapes"; + | + help: if a null escape is intended, disambiguate using | -LL - let _bad7 = "EvenMoreText-\01\02-ShortEscapes"; -LL + let _bad7 = "EvenMoreText-\01\x0002-ShortEscapes"; - | +LL | let _bad7 = "EvenMoreText-\01\x0002-ShortEscapes"; + | +++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:17:19 @@ -162,14 +150,12 @@ LL | let _bad8 = "锈\01锈"; | help: if an octal escape is intended, use a hex escape instead | -LL - let _bad8 = "锈\01锈"; -LL + let _bad8 = "锈\x01锈"; - | +LL | let _bad8 = "锈\x01锈"; + | + help: if a null escape is intended, disambiguate using | -LL - let _bad8 = "锈\01锈"; -LL + let _bad8 = "锈\x0001锈"; - | +LL | let _bad8 = "锈\x0001锈"; + | +++ error: octal-looking escape in a literal --> tests/ui/octal_escapes.rs:18:19 @@ -184,9 +170,8 @@ LL + let _bad9 = "锈\x09锈"; | help: if a null escape is intended, disambiguate using | -LL - let _bad9 = "锈\011锈"; -LL + let _bad9 = "锈\x0011锈"; - | +LL | let _bad9 = "锈\x0011锈"; + | ++ error: aborting due to 11 previous errors diff --git a/src/tools/clippy/tests/ui/suspicious_to_owned.stderr b/src/tools/clippy/tests/ui/suspicious_to_owned.stderr index 74bbcfcca51e..2c26565d5ef1 100644 --- a/src/tools/clippy/tests/ui/suspicious_to_owned.stderr +++ b/src/tools/clippy/tests/ui/suspicious_to_owned.stderr @@ -8,9 +8,8 @@ LL | let _ = cow.to_owned(); = help: to override `-D warnings` add `#[allow(clippy::suspicious_to_owned)]` help: depending on intent, either make the Cow an Owned variant | -LL - let _ = cow.to_owned(); -LL + let _ = cow.into_owned(); - | +LL | let _ = cow.into_owned(); + | ++ help: or clone the Cow itself | LL - let _ = cow.to_owned(); @@ -25,9 +24,8 @@ LL | let _ = cow.to_owned(); | help: depending on intent, either make the Cow an Owned variant | -LL - let _ = cow.to_owned(); -LL + let _ = cow.into_owned(); - | +LL | let _ = cow.into_owned(); + | ++ help: or clone the Cow itself | LL - let _ = cow.to_owned(); @@ -42,9 +40,8 @@ LL | let _ = cow.to_owned(); | help: depending on intent, either make the Cow an Owned variant | -LL - let _ = cow.to_owned(); -LL + let _ = cow.into_owned(); - | +LL | let _ = cow.into_owned(); + | ++ help: or clone the Cow itself | LL - let _ = cow.to_owned(); @@ -59,9 +56,8 @@ LL | let _ = cow.to_owned(); | help: depending on intent, either make the Cow an Owned variant | -LL - let _ = cow.to_owned(); -LL + let _ = cow.into_owned(); - | +LL | let _ = cow.into_owned(); + | ++ help: or clone the Cow itself | LL - let _ = cow.to_owned(); diff --git a/tests/ui/argument-suggestions/basic.stderr b/tests/ui/argument-suggestions/basic.stderr index 9a639d4b5e4e..a71b6ab0e994 100644 --- a/tests/ui/argument-suggestions/basic.stderr +++ b/tests/ui/argument-suggestions/basic.stderr @@ -42,9 +42,8 @@ LL | fn missing(_i: u32) {} | ^^^^^^^ ------- help: provide the argument | -LL - missing(); -LL + missing(/* u32 */); - | +LL | missing(/* u32 */); + | +++++++++ error[E0308]: arguments to this function are incorrect --> $DIR/basic.rs:23:5 @@ -98,9 +97,8 @@ LL | let closure = |x| x; | ^^^ help: provide the argument | -LL - closure(); -LL + closure(/* x */); - | +LL | closure(/* x */); + | +++++++ error: aborting due to 6 previous errors diff --git a/tests/ui/argument-suggestions/display-is-suggestable.stderr b/tests/ui/argument-suggestions/display-is-suggestable.stderr index bb5df1ec234c..921cc1233387 100644 --- a/tests/ui/argument-suggestions/display-is-suggestable.stderr +++ b/tests/ui/argument-suggestions/display-is-suggestable.stderr @@ -11,9 +11,8 @@ LL | fn foo(x: &(dyn Display + Send)) {} | ^^^ ------------------------ help: provide the argument | -LL - foo(); -LL + foo(/* &dyn std::fmt::Display + Send */); - | +LL | foo(/* &dyn std::fmt::Display + Send */); + | +++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/argument-suggestions/extern-fn-arg-names.stderr b/tests/ui/argument-suggestions/extern-fn-arg-names.stderr index 62670316cd16..28500908e7ea 100644 --- a/tests/ui/argument-suggestions/extern-fn-arg-names.stderr +++ b/tests/ui/argument-suggestions/extern-fn-arg-names.stderr @@ -17,9 +17,8 @@ LL | fn dstfn(src: i32, dst: err); | ^^^^^ --- help: provide the argument | -LL - dstfn(1); -LL + dstfn(1, /* dst */); - | +LL | dstfn(1, /* dst */); + | +++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/argument-suggestions/issue-97197.stderr b/tests/ui/argument-suggestions/issue-97197.stderr index acaf4f151073..ae56e12c975f 100644 --- a/tests/ui/argument-suggestions/issue-97197.stderr +++ b/tests/ui/argument-suggestions/issue-97197.stderr @@ -11,9 +11,8 @@ LL | pub fn g(a1: (), a2: bool, a3: bool, a4: bool, a5: bool, a6: ()) -> () {} | ^ -------- -------- -------- -------- help: provide the arguments | -LL - g((), ()); -LL + g((), /* bool */, /* bool */, /* bool */, /* bool */, ()); - | +LL | g((), /* bool */, /* bool */, /* bool */, /* bool */, ()); + | +++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/argument-suggestions/issue-98894.stderr b/tests/ui/argument-suggestions/issue-98894.stderr index 44353cb33388..141355ff153b 100644 --- a/tests/ui/argument-suggestions/issue-98894.stderr +++ b/tests/ui/argument-suggestions/issue-98894.stderr @@ -11,9 +11,8 @@ LL | (|_, ()| ())(if true {} else {return;}); | ^^^^^^^ help: provide the argument | -LL - (|_, ()| ())(if true {} else {return;}); -LL + (|_, ()| ())(if true {} else {return;}, ()); - | +LL | (|_, ()| ())(if true {} else {return;}, ()); + | ++++ error: aborting due to 1 previous error diff --git a/tests/ui/argument-suggestions/issue-98897.stderr b/tests/ui/argument-suggestions/issue-98897.stderr index fd3ef467b1c3..a85e72336890 100644 --- a/tests/ui/argument-suggestions/issue-98897.stderr +++ b/tests/ui/argument-suggestions/issue-98897.stderr @@ -11,9 +11,8 @@ LL | (|_, ()| ())([return, ()]); | ^^^^^^^ help: provide the argument | -LL - (|_, ()| ())([return, ()]); -LL + (|_, ()| ())([return, ()], ()); - | +LL | (|_, ()| ())([return, ()], ()); + | ++++ error: aborting due to 1 previous error diff --git a/tests/ui/argument-suggestions/issue-99482.stderr b/tests/ui/argument-suggestions/issue-99482.stderr index b3c39604a99b..972ab401958b 100644 --- a/tests/ui/argument-suggestions/issue-99482.stderr +++ b/tests/ui/argument-suggestions/issue-99482.stderr @@ -11,9 +11,8 @@ LL | let f = |_: (), f: fn()| f; | ^^^^^^^^^^^^^^^^ help: provide the argument | -LL - let _f = f(main); -LL + let _f = f((), main); - | +LL | let _f = f((), main); + | +++ error: aborting due to 1 previous error diff --git a/tests/ui/argument-suggestions/missing_arguments.stderr b/tests/ui/argument-suggestions/missing_arguments.stderr index 264c485cbe1c..9dc13c41113b 100644 --- a/tests/ui/argument-suggestions/missing_arguments.stderr +++ b/tests/ui/argument-suggestions/missing_arguments.stderr @@ -11,9 +11,8 @@ LL | fn one_arg(_a: i32) {} | ^^^^^^^ ------- help: provide the argument | -LL - one_arg(); -LL + one_arg(/* i32 */); - | +LL | one_arg(/* i32 */); + | +++++++++ error[E0061]: this function takes 2 arguments but 0 arguments were supplied --> $DIR/missing_arguments.rs:14:3 diff --git a/tests/ui/associated-consts/associated-const-ambiguity-report.stderr b/tests/ui/associated-consts/associated-const-ambiguity-report.stderr index e68ba503c505..041c9b485f0a 100644 --- a/tests/ui/associated-consts/associated-const-ambiguity-report.stderr +++ b/tests/ui/associated-consts/associated-const-ambiguity-report.stderr @@ -16,12 +16,10 @@ LL | const ID: i32 = 1; | ^^^^^^^^^^^^^ help: use fully-qualified syntax to disambiguate | -LL - const X: i32 = ::ID; -LL + const X: i32 = ::ID; - | -LL - const X: i32 = ::ID; -LL + const X: i32 = ::ID; - | +LL | const X: i32 = ::ID; + | ++++++ +LL | const X: i32 = ::ID; + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/associated-inherent-types/issue-109768.stderr b/tests/ui/associated-inherent-types/issue-109768.stderr index 18455f4669e9..59f8526a73e5 100644 --- a/tests/ui/associated-inherent-types/issue-109768.stderr +++ b/tests/ui/associated-inherent-types/issue-109768.stderr @@ -43,9 +43,8 @@ LL | struct Wrapper(T); | ^^^^^^^ help: provide the argument | -LL - const WRAPPED_ASSOC_3: Wrapper = Wrapper(); -LL + const WRAPPED_ASSOC_3: Wrapper = Wrapper(/* value */); - | +LL | const WRAPPED_ASSOC_3: Wrapper = Wrapper(/* value */); + | +++++++++++ error: aborting due to 4 previous errors diff --git a/tests/ui/associated-item/associated-item-enum.stderr b/tests/ui/associated-item/associated-item-enum.stderr index 49f168b85440..c3ce7c34d056 100644 --- a/tests/ui/associated-item/associated-item-enum.stderr +++ b/tests/ui/associated-item/associated-item-enum.stderr @@ -9,9 +9,8 @@ LL | Enum::mispellable(); | help: there is an associated function `misspellable` with a similar name | -LL - Enum::mispellable(); -LL + Enum::misspellable(); - | +LL | Enum::misspellable(); + | + error[E0599]: no variant or associated item named `mispellable_trait` found for enum `Enum` in the current scope --> $DIR/associated-item-enum.rs:18:11 @@ -24,9 +23,8 @@ LL | Enum::mispellable_trait(); | help: there is an associated function `misspellable_trait` with a similar name | -LL - Enum::mispellable_trait(); -LL + Enum::misspellable_trait(); - | +LL | Enum::misspellable_trait(); + | + error[E0599]: no variant or associated item named `MISPELLABLE` found for enum `Enum` in the current scope --> $DIR/associated-item-enum.rs:19:11 @@ -39,9 +37,8 @@ LL | Enum::MISPELLABLE; | help: there is an associated constant `MISSPELLABLE` with a similar name | -LL - Enum::MISPELLABLE; -LL + Enum::MISSPELLABLE; - | +LL | Enum::MISSPELLABLE; + | + error: aborting due to 3 previous errors diff --git a/tests/ui/binop/placement-syntax.stderr b/tests/ui/binop/placement-syntax.stderr index e398c0b0702a..c07ee7184c77 100644 --- a/tests/ui/binop/placement-syntax.stderr +++ b/tests/ui/binop/placement-syntax.stderr @@ -6,9 +6,8 @@ LL | if x<-1 { | help: if you meant to write a comparison against a negative value, add a space in between `<` and `-` | -LL - if x<-1 { -LL + if x< -1 { - | +LL | if x< -1 { + | + error: aborting due to 1 previous error diff --git a/tests/ui/borrowck/borrowck-struct-update-with-dtor.stderr b/tests/ui/borrowck/borrowck-struct-update-with-dtor.stderr index d953ed2ad3ef..5cc5b87cd44b 100644 --- a/tests/ui/borrowck/borrowck-struct-update-with-dtor.stderr +++ b/tests/ui/borrowck/borrowck-struct-update-with-dtor.stderr @@ -116,9 +116,8 @@ LL | let _s2 = T { ..s0 }; | help: clone the value from the field instead of using the functional record update syntax | -LL - let _s2 = T { ..s0 }; -LL + let _s2 = T { b: s0.b.clone(), ..s0 }; - | +LL | let _s2 = T { b: s0.b.clone(), ..s0 }; + | ++++++++++++++++ error[E0509]: cannot move out of type `T`, which implements the `Drop` trait --> $DIR/borrowck-struct-update-with-dtor.rs:47:32 diff --git a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr index 1e3570fc8557..a392177ffe2f 100644 --- a/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr +++ b/tests/ui/borrowck/borrowck-unsafe-static-mutable-borrows.stderr @@ -9,9 +9,8 @@ LL | let sfoo: *mut Foo = &mut SFOO; = note: `#[warn(static_mut_refs)]` on by default help: use `&raw mut` instead to create a raw pointer | -LL - let sfoo: *mut Foo = &mut SFOO; -LL + let sfoo: *mut Foo = &raw mut SFOO; - | +LL | let sfoo: *mut Foo = &raw mut SFOO; + | +++ warning: 1 warning emitted diff --git a/tests/ui/borrowck/issue-85765-closure.stderr b/tests/ui/borrowck/issue-85765-closure.stderr index fa4e54415087..cd2544ec5c95 100644 --- a/tests/ui/borrowck/issue-85765-closure.stderr +++ b/tests/ui/borrowck/issue-85765-closure.stderr @@ -6,9 +6,8 @@ LL | rofl.push(Vec::new()); | help: consider changing this binding's type | -LL - let rofl: &Vec> = &mut test; -LL + let rofl: &mut Vec> = &mut test; - | +LL | let rofl: &mut Vec> = &mut test; + | +++ error[E0594]: cannot assign to `*r`, which is behind a `&` reference --> $DIR/issue-85765-closure.rs:13:9 @@ -29,9 +28,8 @@ LL | *x = 1; | help: consider changing this binding's type | -LL - let x: &usize = &mut{0}; -LL + let x: &mut usize = &mut{0}; - | +LL | let x: &mut usize = &mut{0}; + | +++ error[E0594]: cannot assign to `*y`, which is behind a `&` reference --> $DIR/issue-85765-closure.rs:27:9 @@ -41,9 +39,8 @@ LL | *y = 1; | help: consider changing this binding's type | -LL - let y: &usize = &mut(0); -LL + let y: &mut usize = &mut(0); - | +LL | let y: &mut usize = &mut(0); + | +++ error: aborting due to 4 previous errors diff --git a/tests/ui/borrowck/issue-85765.stderr b/tests/ui/borrowck/issue-85765.stderr index 9354294f52b2..e252f3d44d97 100644 --- a/tests/ui/borrowck/issue-85765.stderr +++ b/tests/ui/borrowck/issue-85765.stderr @@ -6,9 +6,8 @@ LL | rofl.push(Vec::new()); | help: consider changing this binding's type | -LL - let rofl: &Vec> = &mut test; -LL + let rofl: &mut Vec> = &mut test; - | +LL | let rofl: &mut Vec> = &mut test; + | +++ error[E0594]: cannot assign to `*r`, which is behind a `&` reference --> $DIR/issue-85765.rs:12:5 @@ -29,9 +28,8 @@ LL | *x = 1; | help: consider changing this binding's type | -LL - let x: &usize = &mut{0}; -LL + let x: &mut usize = &mut{0}; - | +LL | let x: &mut usize = &mut{0}; + | +++ error[E0594]: cannot assign to `*y`, which is behind a `&` reference --> $DIR/issue-85765.rs:26:5 @@ -41,9 +39,8 @@ LL | *y = 1; | help: consider changing this binding's type | -LL - let y: &usize = &mut(0); -LL + let y: &mut usize = &mut(0); - | +LL | let y: &mut usize = &mut(0); + | +++ error: aborting due to 4 previous errors diff --git a/tests/ui/c-variadic/variadic-ffi-1.stderr b/tests/ui/c-variadic/variadic-ffi-1.stderr index 061eae9729e2..39dfb2548a3b 100644 --- a/tests/ui/c-variadic/variadic-ffi-1.stderr +++ b/tests/ui/c-variadic/variadic-ffi-1.stderr @@ -17,9 +17,8 @@ LL | fn foo(f: isize, x: u8, ...); | ^^^ - - help: provide the arguments | -LL - foo(); -LL + foo(/* isize */, /* u8 */); - | +LL | foo(/* isize */, /* u8 */); + | +++++++++++++++++++++ error[E0060]: this function takes at least 2 arguments but 1 argument was supplied --> $DIR/variadic-ffi-1.rs:23:9 @@ -34,9 +33,8 @@ LL | fn foo(f: isize, x: u8, ...); | ^^^ - help: provide the argument | -LL - foo(1); -LL + foo(1, /* u8 */); - | +LL | foo(1, /* u8 */); + | ++++++++++ error[E0308]: mismatched types --> $DIR/variadic-ffi-1.rs:25:56 diff --git a/tests/ui/cast/ice-cast-type-with-error-124848.stderr b/tests/ui/cast/ice-cast-type-with-error-124848.stderr index 402ee27386dd..0b2ab1dfc4c1 100644 --- a/tests/ui/cast/ice-cast-type-with-error-124848.stderr +++ b/tests/ui/cast/ice-cast-type-with-error-124848.stderr @@ -48,9 +48,8 @@ LL | struct MyType<'a>(Cell>>, Pin); | ^^^^^^ help: provide the argument | -LL - let mut unpinned = MyType(Cell::new(None)); -LL + let mut unpinned = MyType(Cell::new(None), /* value */); - | +LL | let mut unpinned = MyType(Cell::new(None), /* value */); + | +++++++++++++ error[E0606]: casting `&MyType<'_>` as `*const Cell>>` is invalid --> $DIR/ice-cast-type-with-error-124848.rs:14:20 diff --git a/tests/ui/conditional-compilation/cfg-attr-parse.stderr b/tests/ui/conditional-compilation/cfg-attr-parse.stderr index 1605761e5919..76f199caace3 100644 --- a/tests/ui/conditional-compilation/cfg-attr-parse.stderr +++ b/tests/ui/conditional-compilation/cfg-attr-parse.stderr @@ -7,9 +7,8 @@ LL | #[cfg_attr()] = note: for more information, visit help: missing condition and attribute | -LL - #[cfg_attr()] -LL + #[cfg_attr(condition, attribute, other_attribute, ...)] - | +LL | #[cfg_attr(condition, attribute, other_attribute, ...)] + | ++++++++++++++++++++++++++++++++++++++++++ error: expected `,`, found end of `cfg_attr` input --> $DIR/cfg-attr-parse.rs:8:17 diff --git a/tests/ui/consts/const_let_assign2.stderr b/tests/ui/consts/const_let_assign2.stderr index be0ffefc80de..0d76f142d174 100644 --- a/tests/ui/consts/const_let_assign2.stderr +++ b/tests/ui/consts/const_let_assign2.stderr @@ -9,9 +9,8 @@ LL | let ptr = unsafe { &mut BB }; = note: `#[warn(static_mut_refs)]` on by default help: use `&raw mut` instead to create a raw pointer | -LL - let ptr = unsafe { &mut BB }; -LL + let ptr = unsafe { &raw mut BB }; - | +LL | let ptr = unsafe { &raw mut BB }; + | +++ warning: 1 warning emitted diff --git a/tests/ui/coroutine/issue-102645.stderr b/tests/ui/coroutine/issue-102645.stderr index bec0518d8c60..be16674668ea 100644 --- a/tests/ui/coroutine/issue-102645.stderr +++ b/tests/ui/coroutine/issue-102645.stderr @@ -8,9 +8,8 @@ note: method defined here --> $SRC_DIR/core/src/ops/coroutine.rs:LL:COL help: provide the argument | -LL - Pin::new(&mut b).resume(); -LL + Pin::new(&mut b).resume(()); - | +LL | Pin::new(&mut b).resume(()); + | ++ error: aborting due to 1 previous error diff --git a/tests/ui/coroutine/resume-arg-outlives.stderr b/tests/ui/coroutine/resume-arg-outlives.stderr index 0150009c8fa2..045c77e8d054 100644 --- a/tests/ui/coroutine/resume-arg-outlives.stderr +++ b/tests/ui/coroutine/resume-arg-outlives.stderr @@ -9,9 +9,8 @@ LL | generator | help: consider changing `impl Coroutine<&'not_static str> + 'static`'s explicit `'static` bound to the lifetime of argument `s` | -LL - fn demo<'not_static>(s: &'not_static str) -> Pin + 'static>> { -LL + fn demo<'not_static>(s: &'not_static str) -> Pin + 'not_static>> { - | +LL | fn demo<'not_static>(s: &'not_static str) -> Pin + 'not_static>> { + | ++++ help: alternatively, add an explicit `'static` bound to this reference | LL - fn demo<'not_static>(s: &'not_static str) -> Pin + 'static>> { diff --git a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr index a8a70e363b7e..50e1c39d4f8b 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr @@ -6,11 +6,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: aborting due to 1 previous error diff --git a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr index 6443fafef3e4..e8bdd99c9b9b 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr @@ -6,11 +6,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error[E0658]: the `#[coverage]` attribute is an experimental feature diff --git a/tests/ui/coverage-attr/bad-syntax.stderr b/tests/ui/coverage-attr/bad-syntax.stderr index 3123066e7bf9..fa500b542097 100644 --- a/tests/ui/coverage-attr/bad-syntax.stderr +++ b/tests/ui/coverage-attr/bad-syntax.stderr @@ -6,12 +6,10 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] - | -LL - #[coverage] -LL + #[coverage(on)] - | +LL | #[coverage(off)] + | +++++ +LL | #[coverage(on)] + | ++++ error: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:20:1 @@ -36,12 +34,10 @@ LL | #[coverage()] | help: the following are the possible correct uses | -LL - #[coverage()] -LL + #[coverage(off)] - | -LL - #[coverage()] -LL + #[coverage(on)] - | +LL | #[coverage(off)] + | +++ +LL | #[coverage(on)] + | ++ error: malformed `coverage` attribute input --> $DIR/bad-syntax.rs:26:1 diff --git a/tests/ui/coverage-attr/word-only.stderr b/tests/ui/coverage-attr/word-only.stderr index c034149d8ec9..bad50b0c961d 100644 --- a/tests/ui/coverage-attr/word-only.stderr +++ b/tests/ui/coverage-attr/word-only.stderr @@ -6,11 +6,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -21,11 +19,9 @@ LL | #![coverage] | help: the following are the possible correct uses | -LL - #![coverage] -LL + #![coverage(off)] +LL | #![coverage(off)] | -LL - #![coverage] -LL + #![coverage(on)] +LL | #![coverage(on)] | error: malformed `coverage` attribute input @@ -36,11 +32,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -51,11 +45,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -66,11 +58,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -81,11 +71,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -96,11 +84,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -111,11 +97,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -126,11 +110,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -141,11 +123,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -156,11 +136,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error: malformed `coverage` attribute input @@ -171,11 +149,9 @@ LL | #[coverage] | help: the following are the possible correct uses | -LL - #[coverage] -LL + #[coverage(off)] +LL | #[coverage(off)] | -LL - #[coverage] -LL + #[coverage(on)] +LL | #[coverage(on)] | error[E0788]: coverage attribute not allowed here diff --git a/tests/ui/destructuring-assignment/struct_destructure_fail.stderr b/tests/ui/destructuring-assignment/struct_destructure_fail.stderr index 7efc0b20e54b..2d02e33b2586 100644 --- a/tests/ui/destructuring-assignment/struct_destructure_fail.stderr +++ b/tests/ui/destructuring-assignment/struct_destructure_fail.stderr @@ -31,9 +31,8 @@ LL + Struct { a, b } = Struct { a: 1, b: 2 }; | help: if you don't care about this missing field, you can explicitly ignore it | -LL - Struct { a, _ } = Struct { a: 1, b: 2 }; -LL + Struct { a, b: _ } = Struct { a: 1, b: 2 }; - | +LL | Struct { a, b: _ } = Struct { a: 1, b: 2 }; + | ++ help: or always ignore missing fields here | LL - Struct { a, _ } = Struct { a: 1, b: 2 }; diff --git a/tests/ui/diagnostic_namespace/suggest_typos.stderr b/tests/ui/diagnostic_namespace/suggest_typos.stderr index f41e2f655567..86d778c6ec05 100644 --- a/tests/ui/diagnostic_namespace/suggest_typos.stderr +++ b/tests/ui/diagnostic_namespace/suggest_typos.stderr @@ -11,9 +11,8 @@ LL | #![deny(unknown_or_malformed_diagnostic_attributes)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: an attribute with a similar name exists | -LL - #[diagnostic::onunimplemented] -LL + #[diagnostic::on_unimplemented] - | +LL | #[diagnostic::on_unimplemented] + | + error: unknown diagnostic attribute --> $DIR/suggest_typos.rs:9:15 @@ -35,9 +34,8 @@ LL | #[diagnostic::on_implemented] | help: an attribute with a similar name exists | -LL - #[diagnostic::on_implemented] -LL + #[diagnostic::on_unimplemented] - | +LL | #[diagnostic::on_unimplemented] + | ++ error: aborting due to 3 previous errors diff --git a/tests/ui/error-codes/E0027.stderr b/tests/ui/error-codes/E0027.stderr index 3a1ebf297194..72f20a845567 100644 --- a/tests/ui/error-codes/E0027.stderr +++ b/tests/ui/error-codes/E0027.stderr @@ -25,19 +25,16 @@ LL | Dog { name: x, } => {} | help: include the missing field in the pattern | -LL - Dog { name: x, } => {} -LL + Dog { name: x, age } => {} - | +LL | Dog { name: x, age } => {} + | +++ help: if you don't care about this missing field, you can explicitly ignore it | -LL - Dog { name: x, } => {} -LL + Dog { name: x, age: _ } => {} - | +LL | Dog { name: x, age: _ } => {} + | ++++++ help: or always ignore missing fields here | -LL - Dog { name: x, } => {} -LL + Dog { name: x, .. } => {} - | +LL | Dog { name: x, .. } => {} + | ++ error[E0027]: pattern does not mention field `age` --> $DIR/E0027.rs:19:9 @@ -47,19 +44,16 @@ LL | Dog { name: x , } => {} | help: include the missing field in the pattern | -LL - Dog { name: x , } => {} -LL + Dog { name: x, age } => {} - | +LL | Dog { name: x, age } => {} + | ~~~~~~~ help: if you don't care about this missing field, you can explicitly ignore it | -LL - Dog { name: x , } => {} -LL + Dog { name: x, age: _ } => {} - | +LL | Dog { name: x, age: _ } => {} + | ~~~~~~~~~~ help: or always ignore missing fields here | -LL - Dog { name: x , } => {} -LL + Dog { name: x, .. } => {} - | +LL | Dog { name: x, .. } => {} + | ~~~~~~ error[E0027]: pattern does not mention fields `name`, `age` --> $DIR/E0027.rs:22:9 @@ -69,19 +63,16 @@ LL | Dog {} => {} | help: include the missing fields in the pattern | -LL - Dog {} => {} -LL + Dog { name, age } => {} - | +LL | Dog { name, age } => {} + | +++++++++ help: if you don't care about these missing fields, you can explicitly ignore them | -LL - Dog {} => {} -LL + Dog { name: _, age: _ } => {} - | +LL | Dog { name: _, age: _ } => {} + | +++++++++++++++ help: or always ignore missing fields here | -LL - Dog {} => {} -LL + Dog { .. } => {} - | +LL | Dog { .. } => {} + | ++ error: aborting due to 4 previous errors diff --git a/tests/ui/error-codes/E0057.stderr b/tests/ui/error-codes/E0057.stderr index 35bd842b2cf4..26c9689b9c58 100644 --- a/tests/ui/error-codes/E0057.stderr +++ b/tests/ui/error-codes/E0057.stderr @@ -11,9 +11,8 @@ LL | let f = |x| x * 3; | ^^^ help: provide the argument | -LL - let a = f(); -LL + let a = f(/* x */); - | +LL | let a = f(/* x */); + | +++++++ error[E0057]: this function takes 1 argument but 2 arguments were supplied --> $DIR/E0057.rs:5:13 diff --git a/tests/ui/error-codes/E0060.stderr b/tests/ui/error-codes/E0060.stderr index fc52c6fc5ea5..7065b623ad32 100644 --- a/tests/ui/error-codes/E0060.stderr +++ b/tests/ui/error-codes/E0060.stderr @@ -11,9 +11,8 @@ LL | fn printf(_: *const u8, ...) -> u32; | ^^^^^^ - help: provide the argument | -LL - unsafe { printf(); } -LL + unsafe { printf(/* *const u8 */); } - | +LL | unsafe { printf(/* *const u8 */); } + | +++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/error-codes/E0061.stderr b/tests/ui/error-codes/E0061.stderr index b70d607ebeb6..cab72a984a6b 100644 --- a/tests/ui/error-codes/E0061.stderr +++ b/tests/ui/error-codes/E0061.stderr @@ -11,9 +11,8 @@ LL | fn f(a: u16, b: &str) {} | ^ ------- help: provide the argument | -LL - f(0); -LL + f(0, /* &str */); - | +LL | f(0, /* &str */); + | ++++++++++++ error[E0061]: this function takes 1 argument but 0 arguments were supplied --> $DIR/E0061.rs:9:5 @@ -28,9 +27,8 @@ LL | fn f2(a: u16) {} | ^^ ------ help: provide the argument | -LL - f2(); -LL + f2(/* u16 */); - | +LL | f2(/* u16 */); + | +++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/error-codes/E0259.stderr b/tests/ui/error-codes/E0259.stderr index 08d3deb68d23..975d1a161a01 100644 --- a/tests/ui/error-codes/E0259.stderr +++ b/tests/ui/error-codes/E0259.stderr @@ -10,8 +10,7 @@ LL | extern crate test as alloc; = note: `alloc` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate test as alloc; -LL + extern crate test as other_alloc; +LL | extern crate test as other_alloc; | error: aborting due to 1 previous error diff --git a/tests/ui/error-codes/E0260.stderr b/tests/ui/error-codes/E0260.stderr index cb47b77904a3..35698c653590 100644 --- a/tests/ui/error-codes/E0260.stderr +++ b/tests/ui/error-codes/E0260.stderr @@ -10,8 +10,7 @@ LL | mod alloc { = note: `alloc` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate alloc; -LL + extern crate alloc as other_alloc; +LL | extern crate alloc as other_alloc; | error: aborting due to 1 previous error diff --git a/tests/ui/extern/extern-crate-rename.stderr b/tests/ui/extern/extern-crate-rename.stderr index 4d4a585de60c..88b78a07485d 100644 --- a/tests/ui/extern/extern-crate-rename.stderr +++ b/tests/ui/extern/extern-crate-rename.stderr @@ -9,9 +9,8 @@ LL | extern crate m2 as m1; = note: `m1` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate m2 as m1; -LL + extern crate m2 as other_m1; - | +LL | extern crate m2 as other_m1; + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr index 214725b77c04..7768c25bd2c3 100644 --- a/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr +++ b/tests/ui/feature-gates/feature-gate-unboxed-closures-manual-impls.stderr @@ -165,9 +165,8 @@ LL | extern "rust-call" fn call_mut(&self, args: ()) -> () {} found signature `extern "rust-call" fn(&Bar, ()) -> ()` help: change the self-receiver type to match the trait | -LL - extern "rust-call" fn call_mut(&self, args: ()) -> () {} -LL + extern "rust-call" fn call_mut(&mut self, args: ()) -> () {} - | +LL | extern "rust-call" fn call_mut(&mut self, args: ()) -> () {} + | +++ error[E0046]: not all trait items implemented, missing: `Output` --> $DIR/feature-gate-unboxed-closures-manual-impls.rs:35:1 diff --git a/tests/ui/fmt/no-inline-literals-out-of-range.stderr b/tests/ui/fmt/no-inline-literals-out-of-range.stderr index e17023887046..0800fb249761 100644 --- a/tests/ui/fmt/no-inline-literals-out-of-range.stderr +++ b/tests/ui/fmt/no-inline-literals-out-of-range.stderr @@ -13,9 +13,8 @@ LL + format_args!("{}", 0x8f_u8); // issue #115423 | help: to use as a negative number (decimal `-113`), consider using the type `u8` for the literal and cast it to `i8` | -LL - format_args!("{}", 0x8f_i8); // issue #115423 -LL + format_args!("{}", 0x8f_u8 as i8); // issue #115423 - | +LL | format_args!("{}", 0x8f_u8 as i8); // issue #115423 + | +++++ error: literal out of range for `u8` --> $DIR/no-inline-literals-out-of-range.rs:6:24 diff --git a/tests/ui/fn/param-mismatch-foreign.stderr b/tests/ui/fn/param-mismatch-foreign.stderr index 88aa3cd03683..835e0a3343e9 100644 --- a/tests/ui/fn/param-mismatch-foreign.stderr +++ b/tests/ui/fn/param-mismatch-foreign.stderr @@ -11,9 +11,8 @@ LL | fn foo(x: i32, y: u32, z: i32); | ^^^ - help: provide the argument | -LL - foo(1i32, 2i32); -LL + foo(1i32, /* u32 */, 2i32); - | +LL | foo(1i32, /* u32 */, 2i32); + | ++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/higher-ranked/trait-bounds/issue-58451.stderr b/tests/ui/higher-ranked/trait-bounds/issue-58451.stderr index 4f9fc0ac6492..9f94b3aff882 100644 --- a/tests/ui/higher-ranked/trait-bounds/issue-58451.stderr +++ b/tests/ui/higher-ranked/trait-bounds/issue-58451.stderr @@ -11,9 +11,8 @@ LL | fn f(i: I) | ^ ---- help: provide the argument | -LL - f(&[f()]); -LL + f(&[f(/* i */)]); - | +LL | f(&[f(/* i */)]); + | +++++++ error: aborting due to 1 previous error diff --git a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr index b7797317ea68..7c064cc71769 100644 --- a/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr +++ b/tests/ui/impl-trait/in-trait/expeced-refree-to-map-to-reearlybound-ice-108580.stderr @@ -12,9 +12,8 @@ LL | fn bar(&self) -> impl Iterator + '_ { = note: `#[warn(refining_impl_trait_internal)]` on by default help: replace the return type so that it matches the trait | -LL - fn bar(&self) -> impl Iterator + '_ { -LL + fn bar(&self) -> impl Iterator + '_ { - | +LL | fn bar(&self) -> impl Iterator + '_ { + | +++++++++++++++++++ warning: 1 warning emitted diff --git a/tests/ui/impl-trait/in-trait/refine-captures.stderr b/tests/ui/impl-trait/in-trait/refine-captures.stderr index 8a5c8d3c77b0..166991894d16 100644 --- a/tests/ui/impl-trait/in-trait/refine-captures.stderr +++ b/tests/ui/impl-trait/in-trait/refine-captures.stderr @@ -9,9 +9,8 @@ LL | fn test() -> impl Sized + use<> {} = note: `#[warn(refining_impl_trait_internal)]` on by default help: modify the `use<..>` bound to capture the same lifetimes that the trait does | -LL - fn test() -> impl Sized + use<> {} -LL + fn test() -> impl Sized + use<'a> {} - | +LL | fn test() -> impl Sized + use<'a> {} + | ++ warning: impl trait in impl method captures fewer lifetimes than in trait --> $DIR/refine-captures.rs:22:31 @@ -23,9 +22,8 @@ LL | fn test() -> impl Sized + use<> {} = note: we are soliciting feedback, see issue #121718 for more information help: modify the `use<..>` bound to capture the same lifetimes that the trait does | -LL - fn test() -> impl Sized + use<> {} -LL + fn test() -> impl Sized + use<'a> {} - | +LL | fn test() -> impl Sized + use<'a> {} + | ++ warning: impl trait in impl method captures fewer lifetimes than in trait --> $DIR/refine-captures.rs:27:31 @@ -37,9 +35,8 @@ LL | fn test() -> impl Sized + use<'b> {} = note: we are soliciting feedback, see issue #121718 for more information help: modify the `use<..>` bound to capture the same lifetimes that the trait does | -LL - fn test() -> impl Sized + use<'b> {} -LL + fn test() -> impl Sized + use<'a, 'b> {} - | +LL | fn test() -> impl Sized + use<'a, 'b> {} + | ++++ error: `impl Trait` must mention all type parameters in scope in `use<...>` --> $DIR/refine-captures.rs:32:18 diff --git a/tests/ui/impl-trait/must_outlive_least_region_or_bound.stderr b/tests/ui/impl-trait/must_outlive_least_region_or_bound.stderr index 46561b66c8ee..ba7d7770e503 100644 --- a/tests/ui/impl-trait/must_outlive_least_region_or_bound.stderr +++ b/tests/ui/impl-trait/must_outlive_least_region_or_bound.stderr @@ -41,9 +41,8 @@ LL + fn elided2(x: &i32) -> impl Copy + '_ { x } | help: alternatively, add an explicit `'static` bound to this reference | -LL - fn elided2(x: &i32) -> impl Copy + 'static { x } -LL + fn elided2(x: &'static i32) -> impl Copy + 'static { x } - | +LL | fn elided2(x: &'static i32) -> impl Copy + 'static { x } + | +++++++ error: lifetime may not live long enough --> $DIR/must_outlive_least_region_or_bound.rs:12:55 @@ -172,9 +171,8 @@ LL + fn elided4(x: &i32) -> Box { Box::new(x) } | help: alternatively, add an explicit `'static` bound to this reference | -LL - fn elided4(x: &i32) -> Box { Box::new(x) } -LL + fn elided4(x: &'static i32) -> Box { Box::new(x) } - | +LL | fn elided4(x: &'static i32) -> Box { Box::new(x) } + | +++++++ error: lifetime may not live long enough --> $DIR/must_outlive_least_region_or_bound.rs:27:60 diff --git a/tests/ui/imports/extern-crate-self/extern-crate-self-fail.stderr b/tests/ui/imports/extern-crate-self/extern-crate-self-fail.stderr index 9a3ebfddc49c..ec700cf7e590 100644 --- a/tests/ui/imports/extern-crate-self/extern-crate-self-fail.stderr +++ b/tests/ui/imports/extern-crate-self/extern-crate-self-fail.stderr @@ -6,9 +6,8 @@ LL | extern crate self; | help: rename the `self` crate to be able to import it | -LL - extern crate self; -LL + extern crate self as name; - | +LL | extern crate self as name; + | +++++++ error: `#[macro_use]` is not supported on `extern crate self` --> $DIR/extern-crate-self-fail.rs:3:1 diff --git a/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr b/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr index def0676a0f82..80cea1a83d93 100644 --- a/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr +++ b/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr @@ -7,8 +7,7 @@ LL | extern crate std; = note: `std` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate std; -LL + extern crate std as other_std; +LL | extern crate std as other_std; | error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/import-self.stderr b/tests/ui/imports/issue-45829/import-self.stderr index b392d93c1541..5094a50635d5 100644 --- a/tests/ui/imports/issue-45829/import-self.stderr +++ b/tests/ui/imports/issue-45829/import-self.stderr @@ -62,9 +62,8 @@ LL | use foo::{self as A}; = note: `A` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use foo::{self as A}; -LL + use foo::{self as OtherA}; - | +LL | use foo::{self as OtherA}; + | +++++ error: aborting due to 5 previous errors diff --git a/tests/ui/imports/issue-45829/issue-45829.stderr b/tests/ui/imports/issue-45829/issue-45829.stderr index 9fd0e5a76729..618fac350f02 100644 --- a/tests/ui/imports/issue-45829/issue-45829.stderr +++ b/tests/ui/imports/issue-45829/issue-45829.stderr @@ -9,9 +9,8 @@ LL | use foo::{A, B as A}; = note: `A` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use foo::{A, B as A}; -LL + use foo::{A, B as OtherA}; - | +LL | use foo::{A, B as OtherA}; + | +++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr b/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr index 98fe16824ff7..8f2f7bbac0c9 100644 --- a/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr +++ b/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr @@ -9,8 +9,7 @@ LL | extern crate issue_45829_b as bar; = note: `bar` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate issue_45829_b as bar; -LL + extern crate issue_45829_b as other_bar; +LL | extern crate issue_45829_b as other_bar; | error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-extern.stderr b/tests/ui/imports/issue-45829/rename-extern.stderr index f99f433c6424..46560ef9244e 100644 --- a/tests/ui/imports/issue-45829/rename-extern.stderr +++ b/tests/ui/imports/issue-45829/rename-extern.stderr @@ -9,8 +9,7 @@ LL | extern crate issue_45829_b as issue_45829_a; = note: `issue_45829_a` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate issue_45829_b as issue_45829_a; -LL + extern crate issue_45829_b as other_issue_45829_a; +LL | extern crate issue_45829_b as other_issue_45829_a; | error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-use-vs-extern.stderr b/tests/ui/imports/issue-45829/rename-use-vs-extern.stderr index e0647cd3ab68..399de74a5919 100644 --- a/tests/ui/imports/issue-45829/rename-use-vs-extern.stderr +++ b/tests/ui/imports/issue-45829/rename-use-vs-extern.stderr @@ -9,9 +9,8 @@ LL | use std as issue_45829_b; = note: `issue_45829_b` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use std as issue_45829_b; -LL + use std as other_issue_45829_b; - | +LL | use std as other_issue_45829_b; + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-with-path.stderr b/tests/ui/imports/issue-45829/rename-with-path.stderr index 45fdd46850e0..fc30eb1cf8d7 100644 --- a/tests/ui/imports/issue-45829/rename-with-path.stderr +++ b/tests/ui/imports/issue-45829/rename-with-path.stderr @@ -9,9 +9,8 @@ LL | use std::{collections::HashMap as A, sync::Arc as A}; = note: `A` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use std::{collections::HashMap as A, sync::Arc as A}; -LL + use std::{collections::HashMap as A, sync::Arc as OtherA}; - | +LL | use std::{collections::HashMap as A, sync::Arc as OtherA}; + | +++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename.stderr b/tests/ui/imports/issue-45829/rename.stderr index dc5775e3d56d..a17dc6964dad 100644 --- a/tests/ui/imports/issue-45829/rename.stderr +++ b/tests/ui/imports/issue-45829/rename.stderr @@ -9,9 +9,8 @@ LL | use std as core; = note: `core` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use std as core; -LL + use std as other_core; - | +LL | use std as other_core; + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr b/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr index 4a5c85479d33..a84a6c42aa8d 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr @@ -14,8 +14,7 @@ LL | m!(); = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) help: you can use `as` to change the binding name of the import | -LL - extern crate std as core; -LL + extern crate std as other_core; +LL | extern crate std as other_core; | error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr b/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr index 8b87ae93b4d5..556d75a4dbb5 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr @@ -14,8 +14,7 @@ LL | m!(); = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) help: you can use `as` to change the binding name of the import | -LL - extern crate std as empty; -LL + extern crate std as other_empty; +LL | extern crate std as other_empty; | error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr b/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr index 9a9e538740d7..ec34489f2323 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr @@ -20,8 +20,7 @@ LL | m!(); = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) help: you can use `as` to change the binding name of the import | -LL - extern crate std as non_existent; -LL + extern crate std as other_non_existent; +LL | extern crate std as other_non_existent; | error: aborting due to 2 previous errors diff --git a/tests/ui/imports/no-std-inject.stderr b/tests/ui/imports/no-std-inject.stderr index d3952a50cd31..7299c2e8a9f3 100644 --- a/tests/ui/imports/no-std-inject.stderr +++ b/tests/ui/imports/no-std-inject.stderr @@ -7,9 +7,8 @@ LL | extern crate core; = note: `core` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate core; -LL + extern crate core as other_core; - | +LL | extern crate core as other_core; + | +++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/include-macros/parent_dir.stderr b/tests/ui/include-macros/parent_dir.stderr index 23029e911203..d0a1f4fd3b91 100644 --- a/tests/ui/include-macros/parent_dir.stderr +++ b/tests/ui/include-macros/parent_dir.stderr @@ -20,9 +20,8 @@ LL | let _ = include_str!("hello.rs"); = note: this error originates in the macro `include_str` (in Nightly builds, run with -Z macro-backtrace for more info) help: there is a file with the same name in a different directory | -LL - let _ = include_str!("hello.rs"); -LL + let _ = include_str!("../hello.rs"); - | +LL | let _ = include_str!("../hello.rs"); + | +++ error: couldn't read `$DIR/../../data.bin`: $FILE_NOT_FOUND_MSG --> $DIR/parent_dir.rs:8:13 diff --git a/tests/ui/issues/issue-20225.stderr b/tests/ui/issues/issue-20225.stderr index 6a3c4e2a836e..775f23dd7e62 100644 --- a/tests/ui/issues/issue-20225.stderr +++ b/tests/ui/issues/issue-20225.stderr @@ -10,9 +10,8 @@ LL | extern "rust-call" fn call(&self, (_,): (T,)) {} found signature `extern "rust-call" fn(&Foo, (_,))` help: change the parameter type to match the trait | -LL - extern "rust-call" fn call(&self, (_,): (T,)) {} -LL + extern "rust-call" fn call(&self, (_,): (&'a T,)) {} - | +LL | extern "rust-call" fn call(&self, (_,): (&'a T,)) {} + | +++ error[E0053]: method `call_mut` has an incompatible type for trait --> $DIR/issue-20225.rs:11:51 @@ -26,9 +25,8 @@ LL | extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {} found signature `extern "rust-call" fn(&mut Foo, (_,))` help: change the parameter type to match the trait | -LL - extern "rust-call" fn call_mut(&mut self, (_,): (T,)) {} -LL + extern "rust-call" fn call_mut(&mut self, (_,): (&'a T,)) {} - | +LL | extern "rust-call" fn call_mut(&mut self, (_,): (&'a T,)) {} + | +++ error[E0053]: method `call_once` has an incompatible type for trait --> $DIR/issue-20225.rs:18:47 @@ -43,9 +41,8 @@ LL | extern "rust-call" fn call_once(self, (_,): (T,)) {} found signature `extern "rust-call" fn(Foo, (_,))` help: change the parameter type to match the trait | -LL - extern "rust-call" fn call_once(self, (_,): (T,)) {} -LL + extern "rust-call" fn call_once(self, (_,): (&'a T,)) {} - | +LL | extern "rust-call" fn call_once(self, (_,): (&'a T,)) {} + | +++ error: aborting due to 3 previous errors diff --git a/tests/ui/issues/issue-23073.stderr b/tests/ui/issues/issue-23073.stderr index 8aa86887bcfc..87dcf3b32892 100644 --- a/tests/ui/issues/issue-23073.stderr +++ b/tests/ui/issues/issue-23073.stderr @@ -6,9 +6,8 @@ LL | type FooT = <::Foo>::T; | help: if there were a trait named `Example` with associated type `T` implemented for `::Foo`, you could use the fully-qualified path | -LL - type FooT = <::Foo>::T; -LL + type FooT = <::Foo as Example>::T; - | +LL | type FooT = <::Foo as Example>::T; + | ++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr b/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr index eabb08421121..f54990d5d861 100644 --- a/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr +++ b/tests/ui/issues/issue-76077-inaccesible-private-fields/issue-76077-1.stderr @@ -6,9 +6,8 @@ LL | let foo::Foo {} = foo::Foo::default(); | help: ignore the inaccessible and unused fields | -LL - let foo::Foo {} = foo::Foo::default(); -LL + let foo::Foo { .. } = foo::Foo::default(); - | +LL | let foo::Foo { .. } = foo::Foo::default(); + | ++ error: pattern requires `..` due to inaccessible fields --> $DIR/issue-76077-1.rs:16:9 diff --git a/tests/ui/lifetimes/borrowck-let-suggestion.stderr b/tests/ui/lifetimes/borrowck-let-suggestion.stderr index 4703d7f10dc2..9020ee22f9bd 100644 --- a/tests/ui/lifetimes/borrowck-let-suggestion.stderr +++ b/tests/ui/lifetimes/borrowck-let-suggestion.stderr @@ -13,7 +13,7 @@ LL | x.use_mut(); help: consider consuming the `Vec` when turning it into an `Iterator` | LL | let mut x = vec![1].into_iter(); - | +++++ + | +++++ help: consider using a `let` binding to create a longer lived value | LL ~ let binding = vec![1]; diff --git a/tests/ui/lifetimes/issue-26638.stderr b/tests/ui/lifetimes/issue-26638.stderr index 8aa94f66812f..bdf911367653 100644 --- a/tests/ui/lifetimes/issue-26638.stderr +++ b/tests/ui/lifetimes/issue-26638.stderr @@ -56,9 +56,8 @@ LL | fn parse_type_2(iter: fn(&u8)->&u8) -> &str { iter() } | help: provide the argument | -LL - fn parse_type_2(iter: fn(&u8)->&u8) -> &str { iter() } -LL + fn parse_type_2(iter: fn(&u8)->&u8) -> &str { iter(/* &u8 */) } - | +LL | fn parse_type_2(iter: fn(&u8)->&u8) -> &str { iter(/* &u8 */) } + | +++++++++ error[E0308]: mismatched types --> $DIR/issue-26638.rs:4:47 diff --git a/tests/ui/lint/static-mut-refs.e2021.stderr b/tests/ui/lint/static-mut-refs.e2021.stderr index 337d5d0b307e..00a2ca99f241 100644 --- a/tests/ui/lint/static-mut-refs.e2021.stderr +++ b/tests/ui/lint/static-mut-refs.e2021.stderr @@ -22,9 +22,8 @@ LL | let _y = &mut X; = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives help: use `&raw mut` instead to create a raw pointer | -LL - let _y = &mut X; -LL + let _y = &raw mut X; - | +LL | let _y = &raw mut X; + | +++ warning: creating a shared reference to mutable static is discouraged --> $DIR/static-mut-refs.rs:50:22 diff --git a/tests/ui/lint/static-mut-refs.e2024.stderr b/tests/ui/lint/static-mut-refs.e2024.stderr index cf7f0a86f4fe..ff41f316250d 100644 --- a/tests/ui/lint/static-mut-refs.e2024.stderr +++ b/tests/ui/lint/static-mut-refs.e2024.stderr @@ -22,9 +22,8 @@ LL | let _y = &mut X; = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives help: use `&raw mut` instead to create a raw pointer | -LL - let _y = &mut X; -LL + let _y = &raw mut X; - | +LL | let _y = &raw mut X; + | +++ error: creating a shared reference to mutable static is discouraged --> $DIR/static-mut-refs.rs:50:22 diff --git a/tests/ui/lint/type-overflow.stderr b/tests/ui/lint/type-overflow.stderr index 6ba0c9d907c5..4d6403b1e7db 100644 --- a/tests/ui/lint/type-overflow.stderr +++ b/tests/ui/lint/type-overflow.stderr @@ -26,9 +26,8 @@ LL + let fail = 0b1000_0001u8; | help: to use as a negative number (decimal `-127`), consider using the type `u8` for the literal and cast it to `i8` | -LL - let fail = 0b1000_0001i8; -LL + let fail = 0b1000_0001u8 as i8; - | +LL | let fail = 0b1000_0001u8 as i8; + | +++++ warning: literal out of range for `i64` --> $DIR/type-overflow.rs:15:16 @@ -44,9 +43,8 @@ LL + let fail = 0x8000_0000_0000_0000u64; | help: to use as a negative number (decimal `-9223372036854775808`), consider using the type `u64` for the literal and cast it to `i64` | -LL - let fail = 0x8000_0000_0000_0000i64; -LL + let fail = 0x8000_0000_0000_0000u64 as i64; - | +LL | let fail = 0x8000_0000_0000_0000u64 as i64; + | ++++++ warning: literal out of range for `u32` --> $DIR/type-overflow.rs:19:16 diff --git a/tests/ui/malformed/malformed-special-attrs.stderr b/tests/ui/malformed/malformed-special-attrs.stderr index a6220710cf91..b6a1a6b50e46 100644 --- a/tests/ui/malformed/malformed-special-attrs.stderr +++ b/tests/ui/malformed/malformed-special-attrs.stderr @@ -7,9 +7,8 @@ LL | #[cfg_attr] = note: for more information, visit help: missing condition and attribute | -LL - #[cfg_attr] -LL + #[cfg_attr(condition, attribute, other_attribute, ...)] - | +LL | #[cfg_attr(condition, attribute, other_attribute, ...)] + | ++++++++++++++++++++++++++++++++++++++++++++ error: malformed `cfg_attr` attribute input --> $DIR/malformed-special-attrs.rs:4:1 diff --git a/tests/ui/methods/method-call-err-msg.stderr b/tests/ui/methods/method-call-err-msg.stderr index 7cda928aca9d..95de40ff891b 100644 --- a/tests/ui/methods/method-call-err-msg.stderr +++ b/tests/ui/methods/method-call-err-msg.stderr @@ -28,9 +28,8 @@ LL | fn one(self, _: isize) -> Foo { self } | ^^^ -------- help: provide the argument | -LL - .one() -LL + .one(/* isize */) - | +LL | .one(/* isize */) + | +++++++++++ error[E0061]: this method takes 2 arguments but 1 argument was supplied --> $DIR/method-call-err-msg.rs:15:7 @@ -45,9 +44,8 @@ LL | fn two(self, _: isize, _: isize) -> Foo { self } | ^^^ -------- help: provide the argument | -LL - .two(0); -LL + .two(0, /* isize */); - | +LL | .two(0, /* isize */); + | +++++++++++++ error[E0599]: `Foo` is not an iterator --> $DIR/method-call-err-msg.rs:19:7 @@ -84,9 +82,8 @@ LL | fn three(self, _: T, _: T, _: T) -> Foo { self } | ^^^^^ ---- ---- ---- help: provide the arguments | -LL - y.three::(); -LL + y.three::(/* usize */, /* usize */, /* usize */); - | +LL | y.three::(/* usize */, /* usize */, /* usize */); + | +++++++++++++++++++++++++++++++++++++ error: aborting due to 5 previous errors diff --git a/tests/ui/mismatched_types/closure-arg-count.stderr b/tests/ui/mismatched_types/closure-arg-count.stderr index 8704d0f661be..e0fcf9beb3c4 100644 --- a/tests/ui/mismatched_types/closure-arg-count.stderr +++ b/tests/ui/mismatched_types/closure-arg-count.stderr @@ -8,9 +8,8 @@ LL | [1, 2, 3].sort_by(|| panic!()); | help: consider changing the closure to take and ignore the expected arguments | -LL - [1, 2, 3].sort_by(|| panic!()); -LL + [1, 2, 3].sort_by(|_, _| panic!()); - | +LL | [1, 2, 3].sort_by(|_, _| panic!()); + | ++++ error[E0593]: closure is expected to take 2 arguments, but it takes 1 argument --> $DIR/closure-arg-count.rs:7:15 @@ -64,9 +63,8 @@ LL | fn f>(_: F) {} | ^^^^^^^^^^^^ required by this bound in `f` help: consider changing the closure to take and ignore the expected argument | -LL - f(|| panic!()); -LL + f(|_| panic!()); - | +LL | f(|_| panic!()); + | + error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments --> $DIR/closure-arg-count.rs:15:5 @@ -84,9 +82,8 @@ LL | fn f>(_: F) {} | ^^^^^^^^^^^^ required by this bound in `f` help: consider changing the closure to take and ignore the expected argument | -LL - f( move || panic!()); -LL + f( move |_| panic!()); - | +LL | f( move |_| panic!()); + | + error[E0593]: closure is expected to take a single 2-tuple as argument, but it takes 2 distinct arguments --> $DIR/closure-arg-count.rs:18:53 diff --git a/tests/ui/mismatched_types/issue-13033.stderr b/tests/ui/mismatched_types/issue-13033.stderr index 7756217b5600..61786ef14c25 100644 --- a/tests/ui/mismatched_types/issue-13033.stderr +++ b/tests/ui/mismatched_types/issue-13033.stderr @@ -13,9 +13,8 @@ LL | fn bar(&mut self, other: &mut dyn Foo); found signature `fn(&mut Baz, &dyn Foo)` help: change the parameter type to match the trait | -LL - fn bar(&mut self, other: &dyn Foo) {} -LL + fn bar(&mut self, other: &mut dyn Foo) {} - | +LL | fn bar(&mut self, other: &mut dyn Foo) {} + | +++ error: aborting due to 1 previous error diff --git a/tests/ui/mismatched_types/mismatch-args-crash-issue-128848.stderr b/tests/ui/mismatched_types/mismatch-args-crash-issue-128848.stderr index dbd313fada99..13f51cb7b094 100644 --- a/tests/ui/mismatched_types/mismatch-args-crash-issue-128848.stderr +++ b/tests/ui/mismatched_types/mismatch-args-crash-issue-128848.stderr @@ -8,9 +8,8 @@ note: method defined here --> $SRC_DIR/core/src/ops/function.rs:LL:COL help: provide the argument | -LL - f.call_once() -LL + f.call_once(/* args */) - | +LL | f.call_once(/* args */) + | ++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/mismatched_types/mismatch-args-crash-issue-130400.stderr b/tests/ui/mismatched_types/mismatch-args-crash-issue-130400.stderr index d9d99f3d1cf5..8ed4530e85e3 100644 --- a/tests/ui/mismatched_types/mismatch-args-crash-issue-130400.stderr +++ b/tests/ui/mismatched_types/mismatch-args-crash-issue-130400.stderr @@ -11,9 +11,8 @@ LL | fn foo(&mut self) -> _ { | ^^^ --------- help: provide the argument | -LL - Self::foo() -LL + Self::foo(/* value */) - | +LL | Self::foo(/* value */) + | +++++++++++ error[E0121]: the placeholder `_` is not allowed within types on item signatures for return types --> $DIR/mismatch-args-crash-issue-130400.rs:2:26 diff --git a/tests/ui/mismatched_types/mismatch-args-vargs-issue-130372.stderr b/tests/ui/mismatched_types/mismatch-args-vargs-issue-130372.stderr index 7acc361fdb8d..b949b4ea298a 100644 --- a/tests/ui/mismatched_types/mismatch-args-vargs-issue-130372.stderr +++ b/tests/ui/mismatched_types/mismatch-args-vargs-issue-130372.stderr @@ -11,9 +11,8 @@ LL | unsafe extern "C" fn test_va_copy(_: u64, mut ap: ...) {} | ^^^^^^^^^^^^ ------ help: provide the argument | -LL - test_va_copy(); -LL + test_va_copy(/* u64 */); - | +LL | test_va_copy(/* u64 */); + | +++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/mismatched_types/overloaded-calls-bad.stderr b/tests/ui/mismatched_types/overloaded-calls-bad.stderr index 9f5c35a30097..0a872da60148 100644 --- a/tests/ui/mismatched_types/overloaded-calls-bad.stderr +++ b/tests/ui/mismatched_types/overloaded-calls-bad.stderr @@ -25,9 +25,8 @@ LL | impl FnMut<(isize,)> for S { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: provide the argument | -LL - let ans = s(); -LL + let ans = s(/* isize */); - | +LL | let ans = s(/* isize */); + | +++++++++++ error[E0057]: this function takes 1 argument but 2 arguments were supplied --> $DIR/overloaded-calls-bad.rs:37:15 diff --git a/tests/ui/mismatched_types/trait-impl-fn-incompatibility.stderr b/tests/ui/mismatched_types/trait-impl-fn-incompatibility.stderr index d232cc50e523..45a02982289d 100644 --- a/tests/ui/mismatched_types/trait-impl-fn-incompatibility.stderr +++ b/tests/ui/mismatched_types/trait-impl-fn-incompatibility.stderr @@ -32,9 +32,8 @@ LL | fn bar(&mut self, bar: &mut Bar); found signature `fn(&mut Bar, &Bar)` help: change the parameter type to match the trait | -LL - fn bar(&mut self, bar: &Bar) { } -LL + fn bar(&mut self, bar: &mut Bar) { } - | +LL | fn bar(&mut self, bar: &mut Bar) { } + | +++ error: aborting due to 2 previous errors diff --git a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr index 7e11b23d681b..9dbd67696936 100644 --- a/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr +++ b/tests/ui/nll/borrowck-thread-local-static-mut-borrow-outlives-fn.stderr @@ -9,9 +9,8 @@ LL | S1 { a: unsafe { &mut X1 } } = note: `#[warn(static_mut_refs)]` on by default help: use `&raw mut` instead to create a raw pointer | -LL - S1 { a: unsafe { &mut X1 } } -LL + S1 { a: unsafe { &raw mut X1 } } - | +LL | S1 { a: unsafe { &raw mut X1 } } + | +++ warning: 1 warning emitted diff --git a/tests/ui/not-enough-arguments.stderr b/tests/ui/not-enough-arguments.stderr index 637c2774d5a3..099d82eb9355 100644 --- a/tests/ui/not-enough-arguments.stderr +++ b/tests/ui/not-enough-arguments.stderr @@ -11,9 +11,8 @@ LL | fn foo(a: isize, b: isize, c: isize, d:isize) { | ^^^ ------- help: provide the argument | -LL - foo(1, 2, 3); -LL + foo(1, 2, 3, /* isize */); - | +LL | foo(1, 2, 3, /* isize */); + | +++++++++++++ error[E0061]: this function takes 6 arguments but 3 arguments were supplied --> $DIR/not-enough-arguments.rs:29:3 @@ -35,9 +34,8 @@ LL | f: i32, | ------ help: provide the arguments | -LL - bar(1, 2, 3); -LL + bar(1, 2, 3, /* i32 */, /* i32 */, /* i32 */); - | +LL | bar(1, 2, 3, /* i32 */, /* i32 */, /* i32 */); + | +++++++++++++++++++++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/obsolete-in-place/bad.stderr b/tests/ui/obsolete-in-place/bad.stderr index 1409a6637890..a1321a46351a 100644 --- a/tests/ui/obsolete-in-place/bad.stderr +++ b/tests/ui/obsolete-in-place/bad.stderr @@ -6,9 +6,8 @@ LL | x <- y; | help: if you meant to write a comparison against a negative value, add a space in between `<` and `-` | -LL - x <- y; -LL + x < - y; - | +LL | x < - y; + | + error: expected expression, found keyword `in` --> $DIR/bad.rs:10:5 diff --git a/tests/ui/on-unimplemented/bad-annotation.stderr b/tests/ui/on-unimplemented/bad-annotation.stderr index 0482a5c58559..9bb9423788c2 100644 --- a/tests/ui/on-unimplemented/bad-annotation.stderr +++ b/tests/ui/on-unimplemented/bad-annotation.stderr @@ -6,11 +6,9 @@ LL | #[rustc_on_unimplemented] | help: the following are the possible correct uses | -LL - #[rustc_on_unimplemented] -LL + #[rustc_on_unimplemented = "message"] +LL | #[rustc_on_unimplemented = "message"] | -LL - #[rustc_on_unimplemented] -LL + #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")] +LL | #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")] | error[E0230]: there is no parameter `C` on trait `BadAnnotation2` diff --git a/tests/ui/on-unimplemented/issue-104140.stderr b/tests/ui/on-unimplemented/issue-104140.stderr index 5c9d5e8d5539..3c317135dd43 100644 --- a/tests/ui/on-unimplemented/issue-104140.stderr +++ b/tests/ui/on-unimplemented/issue-104140.stderr @@ -6,12 +6,10 @@ LL | #[rustc_on_unimplemented] | help: the following are the possible correct uses | -LL - #[rustc_on_unimplemented] -LL + #[rustc_on_unimplemented = "message"] - | -LL - #[rustc_on_unimplemented] -LL + #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")] - | +LL | #[rustc_on_unimplemented = "message"] + | +++++++++++ +LL | #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")] + | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/panic-handler/weak-lang-item.stderr b/tests/ui/panic-handler/weak-lang-item.stderr index e9d444c1c4d8..de351d2c3e4a 100644 --- a/tests/ui/panic-handler/weak-lang-item.stderr +++ b/tests/ui/panic-handler/weak-lang-item.stderr @@ -7,8 +7,7 @@ LL | extern crate core; = note: `core` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate core; -LL + extern crate core as other_core; +LL | extern crate core as other_core; | error: `#[panic_handler]` function required, but not found diff --git a/tests/ui/parser/emoji-identifiers.stderr b/tests/ui/parser/emoji-identifiers.stderr index f0e90082bff9..ef4e647b9f50 100644 --- a/tests/ui/parser/emoji-identifiers.stderr +++ b/tests/ui/parser/emoji-identifiers.stderr @@ -81,9 +81,8 @@ LL | fn full_of_✨() -> 👀 { | ^^^^^^^^^^^^^^^^^^^^^ help: there is an associated function `full_of_✨` with a similar name | -LL - 👀::full_of✨() -LL + 👀::full_of_✨() - | +LL | 👀::full_of_✨() + | + error[E0425]: cannot find function `i_like_to_😄_a_lot` in this scope --> $DIR/emoji-identifiers.rs:13:13 diff --git a/tests/ui/parser/extern-crate-unexpected-token.stderr b/tests/ui/parser/extern-crate-unexpected-token.stderr index 3d48f0adfa11..033db85a6c7f 100644 --- a/tests/ui/parser/extern-crate-unexpected-token.stderr +++ b/tests/ui/parser/extern-crate-unexpected-token.stderr @@ -6,9 +6,8 @@ LL | extern crte foo; | help: there is a keyword `crate` with a similar name | -LL - extern crte foo; -LL + extern crate foo; - | +LL | extern crate foo; + | + error: aborting due to 1 previous error diff --git a/tests/ui/parser/misspelled-keywords/const-fn.stderr b/tests/ui/parser/misspelled-keywords/const-fn.stderr index 46a6d8ca779f..cc4c0f92917d 100644 --- a/tests/ui/parser/misspelled-keywords/const-fn.stderr +++ b/tests/ui/parser/misspelled-keywords/const-fn.stderr @@ -6,9 +6,8 @@ LL | cnst fn code() {} | help: there is a keyword `const` with a similar name | -LL - cnst fn code() {} -LL + const fn code() {} - | +LL | const fn code() {} + | + error: aborting due to 1 previous error diff --git a/tests/ui/pattern/usefulness/unstable-gated-fields.stderr b/tests/ui/pattern/usefulness/unstable-gated-fields.stderr index 4487f2735345..bd51aca65ee2 100644 --- a/tests/ui/pattern/usefulness/unstable-gated-fields.stderr +++ b/tests/ui/pattern/usefulness/unstable-gated-fields.stderr @@ -6,19 +6,16 @@ LL | let UnstableStruct { stable, stable2, } = UnstableStruct::default(); | help: include the missing field in the pattern | -LL - let UnstableStruct { stable, stable2, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, stable2, unstable } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, stable2, unstable } = UnstableStruct::default(); + | ++++++++ help: if you don't care about this missing field, you can explicitly ignore it | -LL - let UnstableStruct { stable, stable2, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, stable2, unstable: _ } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, stable2, unstable: _ } = UnstableStruct::default(); + | +++++++++++ help: or always ignore missing fields here | -LL - let UnstableStruct { stable, stable2, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, stable2, .. } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, stable2, .. } = UnstableStruct::default(); + | ++ error[E0027]: pattern does not mention field `stable2` --> $DIR/unstable-gated-fields.rs:13:9 @@ -28,19 +25,16 @@ LL | let UnstableStruct { stable, unstable, } = UnstableStruct::default(); | help: include the missing field in the pattern | -LL - let UnstableStruct { stable, unstable, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, unstable, stable2 } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, unstable, stable2 } = UnstableStruct::default(); + | +++++++ help: if you don't care about this missing field, you can explicitly ignore it | -LL - let UnstableStruct { stable, unstable, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, unstable, stable2: _ } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, unstable, stable2: _ } = UnstableStruct::default(); + | ++++++++++ help: or always ignore missing fields here | -LL - let UnstableStruct { stable, unstable, } = UnstableStruct::default(); -LL + let UnstableStruct { stable, unstable, .. } = UnstableStruct::default(); - | +LL | let UnstableStruct { stable, unstable, .. } = UnstableStruct::default(); + | ++ error: aborting due to 2 previous errors diff --git a/tests/ui/regions/region-object-lifetime-in-coercion.stderr b/tests/ui/regions/region-object-lifetime-in-coercion.stderr index 3880ae822837..5f6a11786cc8 100644 --- a/tests/ui/regions/region-object-lifetime-in-coercion.stderr +++ b/tests/ui/regions/region-object-lifetime-in-coercion.stderr @@ -13,9 +13,8 @@ LL + fn a(v: &[u8]) -> Box { | help: alternatively, add an explicit `'static` bound to this reference | -LL - fn a(v: &[u8]) -> Box { -LL + fn a(v: &'static [u8]) -> Box { - | +LL | fn a(v: &'static [u8]) -> Box { + | +++++++ error: lifetime may not live long enough --> $DIR/region-object-lifetime-in-coercion.rs:14:5 @@ -32,9 +31,8 @@ LL + fn b(v: &[u8]) -> Box { | help: alternatively, add an explicit `'static` bound to this reference | -LL - fn b(v: &[u8]) -> Box { -LL + fn b(v: &'static [u8]) -> Box { - | +LL | fn b(v: &'static [u8]) -> Box { + | +++++++ error: lifetime may not live long enough --> $DIR/region-object-lifetime-in-coercion.rs:21:5 diff --git a/tests/ui/regions/regions-proc-bound-capture.stderr b/tests/ui/regions/regions-proc-bound-capture.stderr index 3149cd8c9a1b..75e04bcb7c2a 100644 --- a/tests/ui/regions/regions-proc-bound-capture.stderr +++ b/tests/ui/regions/regions-proc-bound-capture.stderr @@ -14,9 +14,8 @@ LL + fn static_proc(x: &isize) -> Box (isize) + '_> { | help: alternatively, add an explicit `'static` bound to this reference | -LL - fn static_proc(x: &isize) -> Box (isize) + 'static> { -LL + fn static_proc(x: &'static isize) -> Box (isize) + 'static> { - | +LL | fn static_proc(x: &'static isize) -> Box (isize) + 'static> { + | +++++++ error: aborting due to 1 previous error diff --git a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr index f1db2d71b6a6..999e9a47d6c5 100644 --- a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr +++ b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr @@ -3,8 +3,7 @@ error[E0259]: the name `std` is defined multiple times = note: `std` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - extern crate std; -LL + extern crate std as other_std; +LL | extern crate std as other_std; | error: aborting due to 1 previous error diff --git a/tests/ui/resolve/resolve-conflict-import-vs-extern-crate.stderr b/tests/ui/resolve/resolve-conflict-import-vs-extern-crate.stderr index 40c76821bb83..ef8723408dae 100644 --- a/tests/ui/resolve/resolve-conflict-import-vs-extern-crate.stderr +++ b/tests/ui/resolve/resolve-conflict-import-vs-extern-crate.stderr @@ -7,9 +7,8 @@ LL | use std::slice as std; = note: `std` must be defined only once in the type namespace of this module help: you can use `as` to change the binding name of the import | -LL - use std::slice as std; -LL + use std::slice as other_std; - | +LL | use std::slice as other_std; + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/self/arbitrary_self_types_not_allow_call_with_no_deref.stderr b/tests/ui/self/arbitrary_self_types_not_allow_call_with_no_deref.stderr index 8843efc6ff8c..a30cf605829f 100644 --- a/tests/ui/self/arbitrary_self_types_not_allow_call_with_no_deref.stderr +++ b/tests/ui/self/arbitrary_self_types_not_allow_call_with_no_deref.stderr @@ -13,9 +13,8 @@ LL | foo_cpp_ref.0.frobnicate_ref(); | ++ help: there is a method `frobnicate_cpp_ref` with a similar name | -LL - foo_cpp_ref.frobnicate_ref(); -LL + foo_cpp_ref.frobnicate_cpp_ref(); - | +LL | foo_cpp_ref.frobnicate_cpp_ref(); + | ++++ error[E0599]: no method named `frobnicate_self` found for struct `CppRef` in the current scope --> $DIR/arbitrary_self_types_not_allow_call_with_no_deref.rs:32:17 diff --git a/tests/ui/span/missing-unit-argument.stderr b/tests/ui/span/missing-unit-argument.stderr index e77ec3c8447a..e83f7b6cb70f 100644 --- a/tests/ui/span/missing-unit-argument.stderr +++ b/tests/ui/span/missing-unit-argument.stderr @@ -8,9 +8,8 @@ note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL help: provide the argument | -LL - let _: Result<(), String> = Ok(); -LL + let _: Result<(), String> = Ok(()); - | +LL | let _: Result<(), String> = Ok(()); + | ++ error[E0061]: this function takes 2 arguments but 0 arguments were supplied --> $DIR/missing-unit-argument.rs:12:5 @@ -25,9 +24,8 @@ LL | fn foo(():(), ():()) {} | ^^^ ----- ----- help: provide the arguments | -LL - foo(); -LL + foo((), ()); - | +LL | foo((), ()); + | ++++++ error[E0061]: this function takes 2 arguments but 1 argument was supplied --> $DIR/missing-unit-argument.rs:13:5 @@ -42,9 +40,8 @@ LL | fn foo(():(), ():()) {} | ^^^ ----- help: provide the argument | -LL - foo(()); -LL + foo((), ()); - | +LL | foo((), ()); + | ++++ error[E0061]: this function takes 1 argument but 0 arguments were supplied --> $DIR/missing-unit-argument.rs:14:5 @@ -59,9 +56,8 @@ LL | fn bar(():()) {} | ^^^ ----- help: provide the argument | -LL - bar(); -LL + bar(()); - | +LL | bar(()); + | ++ error[E0061]: this method takes 1 argument but 0 arguments were supplied --> $DIR/missing-unit-argument.rs:15:7 @@ -76,9 +72,8 @@ LL | fn baz(self, (): ()) { } | ^^^ ------ help: provide the argument | -LL - S.baz(); -LL + S.baz(()); - | +LL | S.baz(()); + | ++ error[E0061]: this method takes 1 argument but 0 arguments were supplied --> $DIR/missing-unit-argument.rs:16:7 @@ -93,9 +88,8 @@ LL | fn generic(self, _: T) { } | ^^^^^^^ ---- help: provide the argument | -LL - S.generic::<()>(); -LL + S.generic::<()>(()); - | +LL | S.generic::<()>(()); + | ++ error: aborting due to 6 previous errors diff --git a/tests/ui/statics/static-mut-shared-parens.stderr b/tests/ui/statics/static-mut-shared-parens.stderr index 3d4b55909cde..30a586c286ae 100644 --- a/tests/ui/statics/static-mut-shared-parens.stderr +++ b/tests/ui/statics/static-mut-shared-parens.stderr @@ -22,9 +22,8 @@ LL | let _ = unsafe { ((&mut TEST)) as *const usize }; = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives help: use `&raw mut` instead to create a raw pointer | -LL - let _ = unsafe { ((&mut TEST)) as *const usize }; -LL + let _ = unsafe { ((&raw mut TEST)) as *const usize }; - | +LL | let _ = unsafe { ((&raw mut TEST)) as *const usize }; + | +++ warning: 2 warnings emitted diff --git a/tests/ui/statics/static-mut-xc.stderr b/tests/ui/statics/static-mut-xc.stderr index 48cac28a6eb5..69f334a5636a 100644 --- a/tests/ui/statics/static-mut-xc.stderr +++ b/tests/ui/statics/static-mut-xc.stderr @@ -67,9 +67,8 @@ LL | static_bound_set(&mut static_mut_xc::a); = note: mutable references to mutable statics are dangerous; it's undefined behavior if any other pointer to the static is used or if any other reference is created for the static while the mutable reference lives help: use `&raw mut` instead to create a raw pointer | -LL - static_bound_set(&mut static_mut_xc::a); -LL + static_bound_set(&raw mut static_mut_xc::a); - | +LL | static_bound_set(&raw mut static_mut_xc::a); + | +++ warning: 7 warnings emitted diff --git a/tests/ui/structs/default-field-values/non-exhaustive-ctor.disabled.stderr b/tests/ui/structs/default-field-values/non-exhaustive-ctor.disabled.stderr index c7689cfd323a..09506703b7ec 100644 --- a/tests/ui/structs/default-field-values/non-exhaustive-ctor.disabled.stderr +++ b/tests/ui/structs/default-field-values/non-exhaustive-ctor.disabled.stderr @@ -66,9 +66,8 @@ LL | let _ = S { }; | help: all remaining fields have default values, if you added `#![feature(default_field_values)]` to your crate you could use those values with `..` | -LL - let _ = S { }; -LL + let _ = S { .. }; - | +LL | let _ = S { .. }; + | ++ error[E0063]: missing fields `field1` and `field2` in initializer of `S` --> $DIR/non-exhaustive-ctor.rs:26:13 diff --git a/tests/ui/structs/default-field-values/non-exhaustive-ctor.enabled.stderr b/tests/ui/structs/default-field-values/non-exhaustive-ctor.enabled.stderr index d9b8e76aa0de..229f47093adc 100644 --- a/tests/ui/structs/default-field-values/non-exhaustive-ctor.enabled.stderr +++ b/tests/ui/structs/default-field-values/non-exhaustive-ctor.enabled.stderr @@ -6,9 +6,8 @@ LL | let _ = S { }; | help: all remaining fields have default values, you can use those values with `..` | -LL - let _ = S { }; -LL + let _ = S { .. }; - | +LL | let _ = S { .. }; + | ++ error[E0063]: missing fields `field1` and `field2` in initializer of `S` --> $DIR/non-exhaustive-ctor.rs:26:13 diff --git a/tests/ui/suggestions/args-instead-of-tuple-errors.stderr b/tests/ui/suggestions/args-instead-of-tuple-errors.stderr index 8644f4a1dd45..2ad9c807e48a 100644 --- a/tests/ui/suggestions/args-instead-of-tuple-errors.stderr +++ b/tests/ui/suggestions/args-instead-of-tuple-errors.stderr @@ -60,9 +60,8 @@ note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL help: provide the argument | -LL - let _: Option<(i8,)> = Some(); -LL + let _: Option<(i8,)> = Some(/* (i8,) */); - | +LL | let _: Option<(i8,)> = Some(/* (i8,) */); + | +++++++++++ error[E0308]: mismatched types --> $DIR/args-instead-of-tuple-errors.rs:14:34 diff --git a/tests/ui/suggestions/args-instead-of-tuple.stderr b/tests/ui/suggestions/args-instead-of-tuple.stderr index 4b0bab971ee7..4093d06970e1 100644 --- a/tests/ui/suggestions/args-instead-of-tuple.stderr +++ b/tests/ui/suggestions/args-instead-of-tuple.stderr @@ -34,9 +34,8 @@ note: tuple variant defined here --> $SRC_DIR/core/src/option.rs:LL:COL help: provide the argument | -LL - let _: Option<()> = Some(); -LL + let _: Option<()> = Some(()); - | +LL | let _: Option<()> = Some(()); + | ++ error[E0308]: mismatched types --> $DIR/args-instead-of-tuple.rs:14:34 diff --git a/tests/ui/suggestions/bad-hex-float-lit.stderr b/tests/ui/suggestions/bad-hex-float-lit.stderr index 94c0715a4e68..351dc879be3c 100644 --- a/tests/ui/suggestions/bad-hex-float-lit.stderr +++ b/tests/ui/suggestions/bad-hex-float-lit.stderr @@ -8,9 +8,8 @@ LL | let _f: f32 = 0xAAf32; | help: rewrite this as a decimal floating point literal, or use `as` to turn a hex literal into a float | -LL - let _f: f32 = 0xAAf32; -LL + let _f: f32 = 0xAA as f32; - | +LL | let _f: f32 = 0xAA as f32; + | ++ LL - let _f: f32 = 0xAAf32; LL + let _f: f32 = 170_f32; | diff --git a/tests/ui/suggestions/incorrect-variant-literal.svg b/tests/ui/suggestions/incorrect-variant-literal.svg index 0f2ade633c5a..68cd42deaea0 100644 --- a/tests/ui/suggestions/incorrect-variant-literal.svg +++ b/tests/ui/suggestions/incorrect-variant-literal.svg @@ -1,4 +1,4 @@ - + Foo for Bar where for<'a> <&'a S>::Item: Foo {} | help: use fully-qualified syntax | -LL - impl Foo for Bar where for<'a> <&'a S>::Item: Foo {} -LL + impl Foo for Bar where for<'a> <&'a S as IntoAsyncIterator>::Item: Foo {} - | -LL - impl Foo for Bar where for<'a> <&'a S>::Item: Foo {} -LL + impl Foo for Bar where for<'a> <&'a S as IntoIterator>::Item: Foo {} - | +LL | impl Foo for Bar where for<'a> <&'a S as IntoAsyncIterator>::Item: Foo {} + | ++++++++++++++++++++ +LL | impl Foo for Bar where for<'a> <&'a S as IntoIterator>::Item: Foo {} + | +++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/test-attrs/inaccessible-test-modules.stderr b/tests/ui/test-attrs/inaccessible-test-modules.stderr index dfb6985730af..c66dc0d0fc26 100644 --- a/tests/ui/test-attrs/inaccessible-test-modules.stderr +++ b/tests/ui/test-attrs/inaccessible-test-modules.stderr @@ -13,7 +13,7 @@ LL | use test as y; help: consider importing this module instead | LL | use test::test as y; - | ++++++ + | ++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/type-alias-enum-variants/enum-variant-priority-higher-than-other-inherent.stderr b/tests/ui/type-alias-enum-variants/enum-variant-priority-higher-than-other-inherent.stderr index c4deafd4f6b7..03fd43d43a93 100644 --- a/tests/ui/type-alias-enum-variants/enum-variant-priority-higher-than-other-inherent.stderr +++ b/tests/ui/type-alias-enum-variants/enum-variant-priority-higher-than-other-inherent.stderr @@ -11,9 +11,8 @@ LL | V(u8) | ^ help: provide the argument | -LL - ::V(); -LL + ::V(/* u8 */); - | +LL | ::V(/* u8 */); + | ++++++++ error[E0308]: mismatched types --> $DIR/enum-variant-priority-higher-than-other-inherent.rs:22:17 diff --git a/tests/ui/type/type-check/point-at-inference-4.stderr b/tests/ui/type/type-check/point-at-inference-4.stderr index 52d603c59808..adfb0cebf26e 100644 --- a/tests/ui/type/type-check/point-at-inference-4.stderr +++ b/tests/ui/type/type-check/point-at-inference-4.stderr @@ -11,9 +11,8 @@ LL | fn infer(&self, a: A, b: B) {} | ^^^^^ ---- help: provide the argument | -LL - s.infer(0i32); -LL + s.infer(0i32, /* b */); - | +LL | s.infer(0i32, /* b */); + | +++++++++ error[E0308]: mismatched types --> $DIR/point-at-inference-4.rs:18:24 diff --git a/tests/ui/typeck/issue-110052.stderr b/tests/ui/typeck/issue-110052.stderr index 649fc8429b9c..832cdf6f710b 100644 --- a/tests/ui/typeck/issue-110052.stderr +++ b/tests/ui/typeck/issue-110052.stderr @@ -6,12 +6,10 @@ LL | for<'iter> dyn Validator<<&'iter I>::Item>:, | help: use fully-qualified syntax | -LL - for<'iter> dyn Validator<<&'iter I>::Item>:, -LL + for<'iter> dyn Validator<<&'iter I as IntoAsyncIterator>::Item>:, - | -LL - for<'iter> dyn Validator<<&'iter I>::Item>:, -LL + for<'iter> dyn Validator<<&'iter I as IntoIterator>::Item>:, - | +LL | for<'iter> dyn Validator<<&'iter I as IntoAsyncIterator>::Item>:, + | ++++++++++++++++++++ +LL | for<'iter> dyn Validator<<&'iter I as IntoIterator>::Item>:, + | +++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/typeck/issue-87872-missing-inaccessible-field-pattern.stderr b/tests/ui/typeck/issue-87872-missing-inaccessible-field-pattern.stderr index ed0e4eb9ece8..da9caebb2d63 100644 --- a/tests/ui/typeck/issue-87872-missing-inaccessible-field-pattern.stderr +++ b/tests/ui/typeck/issue-87872-missing-inaccessible-field-pattern.stderr @@ -6,19 +6,16 @@ LL | let foo::Foo {} = foo::Foo::default(); | help: include the missing field in the pattern and ignore the inaccessible fields | -LL - let foo::Foo {} = foo::Foo::default(); -LL + let foo::Foo { visible, .. } = foo::Foo::default(); - | +LL | let foo::Foo { visible, .. } = foo::Foo::default(); + | +++++++++++ help: if you don't care about this missing field, you can explicitly ignore it | -LL - let foo::Foo {} = foo::Foo::default(); -LL + let foo::Foo { visible: _, .. } = foo::Foo::default(); - | +LL | let foo::Foo { visible: _, .. } = foo::Foo::default(); + | ++++++++++++++ help: or always ignore missing fields here | -LL - let foo::Foo {} = foo::Foo::default(); -LL + let foo::Foo { .. } = foo::Foo::default(); - | +LL | let foo::Foo { .. } = foo::Foo::default(); + | ++ error: aborting due to 1 previous error diff --git a/tests/ui/typeck/struct-enum-wrong-args.stderr b/tests/ui/typeck/struct-enum-wrong-args.stderr index d1003fbb6b31..690851ad19ad 100644 --- a/tests/ui/typeck/struct-enum-wrong-args.stderr +++ b/tests/ui/typeck/struct-enum-wrong-args.stderr @@ -38,9 +38,8 @@ note: tuple variant defined here --> $SRC_DIR/core/src/result.rs:LL:COL help: provide the argument | -LL - let _ = Ok(); -LL + let _ = Ok(/* value */); - | +LL | let _ = Ok(/* value */); + | +++++++++++ error[E0061]: this struct takes 1 argument but 0 arguments were supplied --> $DIR/struct-enum-wrong-args.rs:9:13 @@ -55,9 +54,8 @@ LL | struct Wrapper(i32); | ^^^^^^^ help: provide the argument | -LL - let _ = Wrapper(); -LL + let _ = Wrapper(/* i32 */); - | +LL | let _ = Wrapper(/* i32 */); + | +++++++++ error[E0061]: this struct takes 1 argument but 2 arguments were supplied --> $DIR/struct-enum-wrong-args.rs:10:13 @@ -89,9 +87,8 @@ LL | struct DoubleWrapper(i32, i32); | ^^^^^^^^^^^^^ help: provide the arguments | -LL - let _ = DoubleWrapper(); -LL + let _ = DoubleWrapper(/* i32 */, /* i32 */); - | +LL | let _ = DoubleWrapper(/* i32 */, /* i32 */); + | ++++++++++++++++++++ error[E0061]: this struct takes 2 arguments but 1 argument was supplied --> $DIR/struct-enum-wrong-args.rs:12:13 @@ -106,9 +103,8 @@ LL | struct DoubleWrapper(i32, i32); | ^^^^^^^^^^^^^ help: provide the argument | -LL - let _ = DoubleWrapper(5); -LL + let _ = DoubleWrapper(5, /* i32 */); - | +LL | let _ = DoubleWrapper(5, /* i32 */); + | +++++++++++ error[E0061]: this struct takes 2 arguments but 3 arguments were supplied --> $DIR/struct-enum-wrong-args.rs:13:13 From 160905b6253f42967ed4aef4b98002944c7df24c Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Fri, 21 Feb 2025 00:29:56 +0000 Subject: [PATCH 190/255] Trim suggestion part before generating highlights --- compiler/rustc_errors/src/emitter.rs | 7 +-- compiler/rustc_errors/src/lib.rs | 7 ++- .../clippy/tests/ui/async_yields_async.stderr | 12 ++--- .../tests/ui/fn_to_numeric_cast_any.stderr | 4 +- .../clippy/tests/ui/implicit_return.stderr | 14 +++--- .../clippy/tests/ui/manual_flatten.stderr | 8 ++-- .../too_long_first_doc_paragraph-fix.stderr | 2 +- .../ui/too_long_first_doc_paragraph.stderr | 4 +- .../ui/coverage-attr/bad-attr-ice.feat.stderr | 4 +- .../coverage-attr/bad-attr-ice.nofeat.stderr | 4 +- tests/ui/coverage-attr/word-only.stderr | 48 +++++++++---------- tests/ui/error-codes/E0259.stderr | 2 +- tests/ui/error-codes/E0260.stderr | 2 +- ...89280-emitter-overflow-splice-lines.stderr | 7 +-- tests/ui/fn/issue-3044.stderr | 4 +- ...-crate-rename-suggestion-formatting.stderr | 2 +- .../issue-45829/rename-extern-vs-use.stderr | 2 +- .../imports/issue-45829/rename-extern.stderr | 2 +- ...ultiple-extern-by-macro-for-buitlin.stderr | 2 +- ...multiple-extern-by-macro-for-custom.stderr | 2 +- ...ultiple-extern-by-macro-for-inexist.stderr | 2 +- .../ui/on-unimplemented/bad-annotation.stderr | 4 +- tests/ui/panic-handler/weak-lang-item.stderr | 2 +- .../empty-types.exhaustive_patterns.stderr | 10 ++-- .../usefulness/empty-types.never_pats.stderr | 12 ++--- .../usefulness/empty-types.normal.stderr | 12 ++--- tests/ui/pattern/usefulness/impl-trait.stderr | 4 +- .../pointer-sized-int.deny.stderr | 2 +- ...ssue-78123-non-exhaustive-reference.stderr | 2 +- ...nflict-extern-crate-vs-extern-crate.stderr | 2 +- .../enum_same_crate_empty_match.stderr | 4 +- .../suggestions/incorrect-variant-literal.svg | 4 +- tests/ui/suggestions/return-bindings.stderr | 12 ++--- .../bad-tait-no-substs.stderr | 2 +- .../unconstrained-due-to-bad-pattern.stderr | 2 +- tests/ui/typeck/issue-13853-5.stderr | 4 +- 36 files changed, 106 insertions(+), 113 deletions(-) diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 634afacf5390..f7f842393084 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -2216,12 +2216,7 @@ impl HumanEmitter { if let DisplaySuggestion::Diff | DisplaySuggestion::Underline | DisplaySuggestion::Add = show_code_change { - for mut part in parts { - // If this is a replacement of, e.g. `"a"` into `"ab"`, adjust the - // suggestion and snippet to look as if we just suggested to add - // `"b"`, which is typically much easier for the user to understand. - part.trim_trivial_replacements(sm); - + for part in parts { let snippet = if let Ok(snippet) = sm.span_to_snippet(part.span) { snippet } else { diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 0016dacc8b23..ceed0cd94fc9 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -403,7 +403,12 @@ impl CodeSuggestion { // or deleted code in order to point at the correct column *after* substitution. let mut acc = 0; let mut only_capitalization = false; - for part in &substitution.parts { + for part in &mut substitution.parts { + // If this is a replacement of, e.g. `"a"` into `"ab"`, adjust the + // suggestion and snippet to look as if we just suggested to add + // `"b"`, which is typically much easier for the user to understand. + part.trim_trivial_replacements(sm); + only_capitalization |= is_case_difference(sm, &part.snippet, part.span); let cur_lo = sm.lookup_char_pos(part.span.lo()); if prev_hi.line == cur_lo.line { diff --git a/src/tools/clippy/tests/ui/async_yields_async.stderr b/src/tools/clippy/tests/ui/async_yields_async.stderr index 474914299d06..8c023d0d61f4 100644 --- a/src/tools/clippy/tests/ui/async_yields_async.stderr +++ b/src/tools/clippy/tests/ui/async_yields_async.stderr @@ -14,9 +14,9 @@ LL | | }; = help: to override `-D warnings` add `#[allow(clippy::async_yields_async)]` help: consider awaiting this value | -LL ~ async { -LL + 3 -LL + }.await +LL | async { +LL | 3 +LL ~ }.await | error: an async construct yields a type which is itself awaitable @@ -46,9 +46,9 @@ LL | | }; | help: consider awaiting this value | -LL ~ async { -LL + 3 -LL + }.await +LL | async { +LL | 3 +LL ~ }.await | error: an async construct yields a type which is itself awaitable diff --git a/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr b/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr index 895297a04006..0238e3a91369 100644 --- a/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr +++ b/src/tools/clippy/tests/ui/fn_to_numeric_cast_any.stderr @@ -152,7 +152,7 @@ LL | f as usize help: did you mean to invoke the function? | LL | f() as usize - | + | ++ error: casting function pointer `T::static_method` to `usize` --> tests/ui/fn_to_numeric_cast_any.rs:62:5 @@ -163,7 +163,7 @@ LL | T::static_method as usize help: did you mean to invoke the function? | LL | T::static_method() as usize - | + | ++ error: casting function pointer `(clos as fn(u32) -> u32)` to `usize` --> tests/ui/fn_to_numeric_cast_any.rs:69:13 diff --git a/src/tools/clippy/tests/ui/implicit_return.stderr b/src/tools/clippy/tests/ui/implicit_return.stderr index 7ea72307450c..936a779fa747 100644 --- a/src/tools/clippy/tests/ui/implicit_return.stderr +++ b/src/tools/clippy/tests/ui/implicit_return.stderr @@ -9,7 +9,7 @@ LL | true help: add `return` as shown | LL | return true - | + | ++++++ error: missing `return` statement --> tests/ui/implicit_return.rs:19:15 @@ -122,7 +122,7 @@ LL | format!("test {}", "test") help: add `return` as shown | LL | return format!("test {}", "test") - | + | ++++++ error: missing `return` statement --> tests/ui/implicit_return.rs:90:5 @@ -133,7 +133,7 @@ LL | m!(true, false) help: add `return` as shown | LL | return m!(true, false) - | + | ++++++ error: missing `return` statement --> tests/ui/implicit_return.rs:96:13 @@ -169,10 +169,8 @@ LL | | } | help: add `return` as shown | -LL ~ return loop { -LL + m!(true); -LL + } - | +LL | return loop { + | ++++++ error: missing `return` statement --> tests/ui/implicit_return.rs:130:5 @@ -183,7 +181,7 @@ LL | true help: add `return` as shown | LL | return true - | + | ++++++ error: aborting due to 16 previous errors diff --git a/src/tools/clippy/tests/ui/manual_flatten.stderr b/src/tools/clippy/tests/ui/manual_flatten.stderr index cf1b0a1c8bbf..93f7f11b5e64 100644 --- a/src/tools/clippy/tests/ui/manual_flatten.stderr +++ b/src/tools/clippy/tests/ui/manual_flatten.stderr @@ -196,11 +196,9 @@ LL | | } | |_________^ help: try | -LL ~ for n in vec![ -LL + -LL + Some(1), -LL + Some(2), -LL + Some(3) +LL | for n in vec![ +... +LL | Some(3) LL ~ ].iter().flatten() { | diff --git a/src/tools/clippy/tests/ui/too_long_first_doc_paragraph-fix.stderr b/src/tools/clippy/tests/ui/too_long_first_doc_paragraph-fix.stderr index 6ef333f0cfd2..84a574017a9b 100644 --- a/src/tools/clippy/tests/ui/too_long_first_doc_paragraph-fix.stderr +++ b/src/tools/clippy/tests/ui/too_long_first_doc_paragraph-fix.stderr @@ -12,7 +12,7 @@ LL | | /// 200 characters so I needed to write something longeeeeeeer. = help: to override `-D warnings` add `#[allow(clippy::too_long_first_doc_paragraph)]` help: add an empty line | -LL ~ /// A very short summary. +LL | /// A very short summary. LL + /// | diff --git a/src/tools/clippy/tests/ui/too_long_first_doc_paragraph.stderr b/src/tools/clippy/tests/ui/too_long_first_doc_paragraph.stderr index 95f42349b9b3..8bc853132ec0 100644 --- a/src/tools/clippy/tests/ui/too_long_first_doc_paragraph.stderr +++ b/src/tools/clippy/tests/ui/too_long_first_doc_paragraph.stderr @@ -12,8 +12,8 @@ LL | | //! 200 characters so I needed to write something longeeeeeeer. = help: to override `-D warnings` add `#[allow(clippy::too_long_first_doc_paragraph)]` help: add an empty line | -LL ~ //! A very short summary. -LL + //! +LL | //! A very short summary. +LL ~ //! LL ~ //! A much longer explanation that goes into a lot more detail about | diff --git a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr index 50e1c39d4f8b..dc84394fe3c0 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.feat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.feat.stderr @@ -7,9 +7,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: aborting due to 1 previous error diff --git a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr index e8bdd99c9b9b..49b8974bfdfb 100644 --- a/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr +++ b/tests/ui/coverage-attr/bad-attr-ice.nofeat.stderr @@ -7,9 +7,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error[E0658]: the `#[coverage]` attribute is an experimental feature --> $DIR/bad-attr-ice.rs:11:1 diff --git a/tests/ui/coverage-attr/word-only.stderr b/tests/ui/coverage-attr/word-only.stderr index bad50b0c961d..612301885dcc 100644 --- a/tests/ui/coverage-attr/word-only.stderr +++ b/tests/ui/coverage-attr/word-only.stderr @@ -7,9 +7,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:17:5 @@ -20,9 +20,9 @@ LL | #![coverage] help: the following are the possible correct uses | LL | #![coverage(off)] - | + | +++++ LL | #![coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:21:1 @@ -33,9 +33,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:29:5 @@ -46,9 +46,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:26:1 @@ -59,9 +59,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:39:5 @@ -72,9 +72,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:44:5 @@ -85,9 +85,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:35:1 @@ -98,9 +98,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:53:5 @@ -111,9 +111,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:58:5 @@ -124,9 +124,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:50:1 @@ -137,9 +137,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error: malformed `coverage` attribute input --> $DIR/word-only.rs:64:1 @@ -150,9 +150,9 @@ LL | #[coverage] help: the following are the possible correct uses | LL | #[coverage(off)] - | + | +++++ LL | #[coverage(on)] - | + | ++++ error[E0788]: coverage attribute not allowed here --> $DIR/word-only.rs:21:1 diff --git a/tests/ui/error-codes/E0259.stderr b/tests/ui/error-codes/E0259.stderr index 975d1a161a01..1833fe90f3d5 100644 --- a/tests/ui/error-codes/E0259.stderr +++ b/tests/ui/error-codes/E0259.stderr @@ -11,7 +11,7 @@ LL | extern crate test as alloc; help: you can use `as` to change the binding name of the import | LL | extern crate test as other_alloc; - | + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/error-codes/E0260.stderr b/tests/ui/error-codes/E0260.stderr index 35698c653590..10811d1f3187 100644 --- a/tests/ui/error-codes/E0260.stderr +++ b/tests/ui/error-codes/E0260.stderr @@ -11,7 +11,7 @@ LL | mod alloc { help: you can use `as` to change the binding name of the import | LL | extern crate alloc as other_alloc; - | + | ++++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr b/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr index 54bde98b57f9..d9acdbea3fc0 100644 --- a/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr +++ b/tests/ui/errors/issue-89280-emitter-overflow-splice-lines.stderr @@ -12,11 +12,8 @@ LL | | )) {} = note: `#[warn(anonymous_parameters)]` on by default help: try naming the parameter or explicitly ignoring it | -LL ~ fn test(x: u32, _: ( -LL + -LL + -LL ~ )) {} - | +LL | fn test(x: u32, _: ( + | ++ warning: 1 warning emitted diff --git a/tests/ui/fn/issue-3044.stderr b/tests/ui/fn/issue-3044.stderr index 8351818dc897..787eeec09cc2 100644 --- a/tests/ui/fn/issue-3044.stderr +++ b/tests/ui/fn/issue-3044.stderr @@ -11,8 +11,8 @@ note: method defined here --> $SRC_DIR/core/src/iter/traits/iterator.rs:LL:COL help: provide the argument | -LL ~ needlesArr.iter().fold(|x, y| { -LL + +LL | needlesArr.iter().fold(|x, y| { +LL | LL ~ }, /* f */); | diff --git a/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr b/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr index 80cea1a83d93..2621f913186e 100644 --- a/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr +++ b/tests/ui/imports/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr @@ -8,7 +8,7 @@ LL | extern crate std; help: you can use `as` to change the binding name of the import | LL | extern crate std as other_std; - | + | ++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr b/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr index 8f2f7bbac0c9..f33b093725f0 100644 --- a/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr +++ b/tests/ui/imports/issue-45829/rename-extern-vs-use.stderr @@ -10,7 +10,7 @@ LL | extern crate issue_45829_b as bar; help: you can use `as` to change the binding name of the import | LL | extern crate issue_45829_b as other_bar; - | + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/issue-45829/rename-extern.stderr b/tests/ui/imports/issue-45829/rename-extern.stderr index 46560ef9244e..2a3a05d1e7b4 100644 --- a/tests/ui/imports/issue-45829/rename-extern.stderr +++ b/tests/ui/imports/issue-45829/rename-extern.stderr @@ -10,7 +10,7 @@ LL | extern crate issue_45829_b as issue_45829_a; help: you can use `as` to change the binding name of the import | LL | extern crate issue_45829_b as other_issue_45829_a; - | + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr b/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr index a84a6c42aa8d..bc9755732813 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-buitlin.stderr @@ -15,7 +15,7 @@ LL | m!(); help: you can use `as` to change the binding name of the import | LL | extern crate std as other_core; - | + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr b/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr index 556d75a4dbb5..f1b60bbe39d5 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-custom.stderr @@ -15,7 +15,7 @@ LL | m!(); help: you can use `as` to change the binding name of the import | LL | extern crate std as other_empty; - | + | ++++++ error: aborting due to 1 previous error diff --git a/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr b/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr index ec34489f2323..13e1aaacd702 100644 --- a/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr +++ b/tests/ui/imports/multiple-extern-by-macro-for-inexist.stderr @@ -21,7 +21,7 @@ LL | m!(); help: you can use `as` to change the binding name of the import | LL | extern crate std as other_non_existent; - | + | ++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/on-unimplemented/bad-annotation.stderr b/tests/ui/on-unimplemented/bad-annotation.stderr index 9bb9423788c2..4ceea779b29d 100644 --- a/tests/ui/on-unimplemented/bad-annotation.stderr +++ b/tests/ui/on-unimplemented/bad-annotation.stderr @@ -7,9 +7,9 @@ LL | #[rustc_on_unimplemented] help: the following are the possible correct uses | LL | #[rustc_on_unimplemented = "message"] - | + | +++++++++++ LL | #[rustc_on_unimplemented(/*opt*/ message = "...", /*opt*/ label = "...", /*opt*/ note = "...")] - | + | ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ error[E0230]: there is no parameter `C` on trait `BadAnnotation2` --> $DIR/bad-annotation.rs:22:1 diff --git a/tests/ui/panic-handler/weak-lang-item.stderr b/tests/ui/panic-handler/weak-lang-item.stderr index de351d2c3e4a..5dcb37df6892 100644 --- a/tests/ui/panic-handler/weak-lang-item.stderr +++ b/tests/ui/panic-handler/weak-lang-item.stderr @@ -8,7 +8,7 @@ LL | extern crate core; help: you can use `as` to change the binding name of the import | LL | extern crate core as other_core; - | + | +++++++++++++ error: `#[panic_handler]` function required, but not found diff --git a/tests/ui/pattern/usefulness/empty-types.exhaustive_patterns.stderr b/tests/ui/pattern/usefulness/empty-types.exhaustive_patterns.stderr index 23821decd6e4..d241f417553f 100644 --- a/tests/ui/pattern/usefulness/empty-types.exhaustive_patterns.stderr +++ b/tests/ui/pattern/usefulness/empty-types.exhaustive_patterns.stderr @@ -37,7 +37,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match ref_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -100,7 +100,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match res_u32_never { LL + Ok(_) => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -374,7 +374,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `&[]` not covered @@ -415,7 +415,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match *slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -462,7 +462,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match array_0_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern diff --git a/tests/ui/pattern/usefulness/empty-types.never_pats.stderr b/tests/ui/pattern/usefulness/empty-types.never_pats.stderr index 84aefe7d9637..ea63d7ba1afd 100644 --- a/tests/ui/pattern/usefulness/empty-types.never_pats.stderr +++ b/tests/ui/pattern/usefulness/empty-types.never_pats.stderr @@ -46,7 +46,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match ref_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -76,7 +76,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match res_u32_never { LL + Ok(_) => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `Ok(1_u32..=u32::MAX)` not covered @@ -321,7 +321,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `&[!, ..]` not covered @@ -376,7 +376,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match *slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: type `[!; 0]` is non-empty @@ -390,7 +390,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match array_0_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -502,7 +502,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match *ref_tuple_half_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern diff --git a/tests/ui/pattern/usefulness/empty-types.normal.stderr b/tests/ui/pattern/usefulness/empty-types.normal.stderr index f3af74c16c30..a1a44e777442 100644 --- a/tests/ui/pattern/usefulness/empty-types.normal.stderr +++ b/tests/ui/pattern/usefulness/empty-types.normal.stderr @@ -37,7 +37,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match ref_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -67,7 +67,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match res_u32_never { LL + Ok(_) => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `Ok(1_u32..=u32::MAX)` not covered @@ -312,7 +312,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `&[_, ..]` not covered @@ -367,7 +367,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match *slice_never { LL + _ => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: type `[!; 0]` is non-empty @@ -381,7 +381,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match array_0_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -493,7 +493,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match *ref_tuple_half_never { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern diff --git a/tests/ui/pattern/usefulness/impl-trait.stderr b/tests/ui/pattern/usefulness/impl-trait.stderr index 34f8eb1e1635..c3e1c267b614 100644 --- a/tests/ui/pattern/usefulness/impl-trait.stderr +++ b/tests/ui/pattern/usefulness/impl-trait.stderr @@ -36,7 +36,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match return_never_rpit(x) { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern @@ -118,7 +118,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match return_never_tait(x) { LL + _ => todo!(), -LL + } +LL ~ } | error: unreachable pattern diff --git a/tests/ui/pattern/usefulness/integer-ranges/pointer-sized-int.deny.stderr b/tests/ui/pattern/usefulness/integer-ranges/pointer-sized-int.deny.stderr index 914c6ed60c83..7caee64a33fb 100644 --- a/tests/ui/pattern/usefulness/integer-ranges/pointer-sized-int.deny.stderr +++ b/tests/ui/pattern/usefulness/integer-ranges/pointer-sized-int.deny.stderr @@ -154,7 +154,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match 7usize { LL + _ => todo!(), -LL + } +LL ~ } | error: aborting due to 12 previous errors diff --git a/tests/ui/pattern/usefulness/issue-78123-non-exhaustive-reference.stderr b/tests/ui/pattern/usefulness/issue-78123-non-exhaustive-reference.stderr index 2acde8496506..c37a9a515790 100644 --- a/tests/ui/pattern/usefulness/issue-78123-non-exhaustive-reference.stderr +++ b/tests/ui/pattern/usefulness/issue-78123-non-exhaustive-reference.stderr @@ -15,7 +15,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match a { LL + _ => todo!(), -LL + } +LL ~ } | error: aborting due to 1 previous error diff --git a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr index 999e9a47d6c5..a9b45a18af39 100644 --- a/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr +++ b/tests/ui/resolve/resolve-conflict-extern-crate-vs-extern-crate.stderr @@ -4,7 +4,7 @@ error[E0259]: the name `std` is defined multiple times help: you can use `as` to change the binding name of the import | LL | extern crate std as other_std; - | + | ++++++++++++ error: aborting due to 1 previous error diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/enum_same_crate_empty_match.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/enum_same_crate_empty_match.stderr index 45a0ca01a560..100e0a501e01 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/enum_same_crate_empty_match.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/enum_same_crate_empty_match.stderr @@ -38,7 +38,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match NonExhaustiveEnum::Unit { LL + NonExhaustiveEnum::Unit | NonExhaustiveEnum::Tuple(_) | NonExhaustiveEnum::Struct { .. } => todo!(), -LL + } +LL ~ } | error[E0004]: non-exhaustive patterns: `NormalEnum::Unit`, `NormalEnum::Tuple(_)` and `NormalEnum::Struct { .. }` not covered @@ -65,7 +65,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match NormalEnum::Unit { LL + NormalEnum::Unit | NormalEnum::Tuple(_) | NormalEnum::Struct { .. } => todo!(), -LL + } +LL ~ } | error: aborting due to 3 previous errors diff --git a/tests/ui/suggestions/incorrect-variant-literal.svg b/tests/ui/suggestions/incorrect-variant-literal.svg index 68cd42deaea0..279fd30f2165 100644 --- a/tests/ui/suggestions/incorrect-variant-literal.svg +++ b/tests/ui/suggestions/incorrect-variant-literal.svg @@ -103,7 +103,7 @@ | - LL | Enum::Tuple(/* i32 */); + LL | Enum::Tuple(/* i32 */); | +++++++++ @@ -581,7 +581,7 @@ LL - Enum::tuple(); - LL + Enum::Tuple(/* i32 */); + LL + Enum::Tuple(/* i32 */); | diff --git a/tests/ui/suggestions/return-bindings.stderr b/tests/ui/suggestions/return-bindings.stderr index 6f906c27ba94..8e396d17dc07 100644 --- a/tests/ui/suggestions/return-bindings.stderr +++ b/tests/ui/suggestions/return-bindings.stderr @@ -22,8 +22,8 @@ LL | | } else { | help: consider returning the local binding `s` | -LL ~ let s: String = if let Some(s) = opt_str { -LL + s +LL | let s: String = if let Some(s) = opt_str { +LL ~ s LL ~ | @@ -54,8 +54,8 @@ LL | | } else { | help: consider returning the local binding `s` | -LL ~ let s: String = if let Some(s) = opt_str { -LL + s +LL | let s: String = if let Some(s) = opt_str { +LL ~ s LL ~ | @@ -71,8 +71,8 @@ LL | String::new() | help: consider returning the local binding `s` | -LL ~ let s = if let Some(s) = opt_str { -LL + s +LL | let s = if let Some(s) = opt_str { +LL ~ s LL ~ } else { | diff --git a/tests/ui/type-alias-impl-trait/bad-tait-no-substs.stderr b/tests/ui/type-alias-impl-trait/bad-tait-no-substs.stderr index 55df117d0664..38fbff9d59da 100644 --- a/tests/ui/type-alias-impl-trait/bad-tait-no-substs.stderr +++ b/tests/ui/type-alias-impl-trait/bad-tait-no-substs.stderr @@ -69,7 +69,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match x { LL + UninhabitedVariants::Tuple(_) => todo!(), -LL + } +LL ~ } | error: aborting due to 5 previous errors diff --git a/tests/ui/type-alias-impl-trait/unconstrained-due-to-bad-pattern.stderr b/tests/ui/type-alias-impl-trait/unconstrained-due-to-bad-pattern.stderr index 6d9c8eabfad5..5c9a4688105f 100644 --- a/tests/ui/type-alias-impl-trait/unconstrained-due-to-bad-pattern.stderr +++ b/tests/ui/type-alias-impl-trait/unconstrained-due-to-bad-pattern.stderr @@ -9,7 +9,7 @@ help: ensure that all possible cases are being handled by adding a match arm wit | LL ~ match empty_opaque() { LL + _ => todo!(), -LL + } +LL ~ } | error: aborting due to 1 previous error diff --git a/tests/ui/typeck/issue-13853-5.stderr b/tests/ui/typeck/issue-13853-5.stderr index 388d5ec746ce..4e483a0a58ef 100644 --- a/tests/ui/typeck/issue-13853-5.stderr +++ b/tests/ui/typeck/issue-13853-5.stderr @@ -14,8 +14,8 @@ LL | fn deserialize_token>(_x: D, _y: &'a str) -> &'a st | help: consider returning the local binding `_y` | -LL ~ fn deserialize_token>(_x: D, _y: &'a str) -> &'a str { -LL + _y +LL | fn deserialize_token>(_x: D, _y: &'a str) -> &'a str { +LL ~ _y LL ~ | From 806be25fc9d519d32db1941b0c67a06c8a6faa40 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Fri, 21 Feb 2025 07:54:35 +1100 Subject: [PATCH 191/255] Move methods from Map to TyCtxt, part 3. Continuing the work from #137162. Every method gains a `hir_` prefix. --- .../src/diagnostics/conflict_errors.rs | 18 ++--- .../src/diagnostics/explain_borrow.rs | 4 +- .../src/diagnostics/move_errors.rs | 2 +- .../src/diagnostics/mutability_errors.rs | 7 +- .../src/diagnostics/region_name.rs | 7 +- .../rustc_hir_analysis/src/check/check.rs | 2 +- compiler/rustc_hir_analysis/src/check/mod.rs | 2 +- .../rustc_hir_analysis/src/check/wfcheck.rs | 2 +- compiler/rustc_hir_analysis/src/collect.rs | 4 +- .../src/collect/generics_of.rs | 6 +- .../src/collect/predicates_of.rs | 3 +- .../rustc_hir_analysis/src/collect/type_of.rs | 6 +- .../src/collect/type_of/opaque.rs | 2 +- .../errors/wrong_number_of_generic_args.rs | 11 ++- .../src/hir_ty_lowering/bounds.rs | 3 +- .../src/hir_ty_lowering/errors.rs | 7 +- .../src/hir_ty_lowering/generics.rs | 3 +- .../src/hir_ty_lowering/lint.rs | 6 +- .../src/hir_ty_lowering/mod.rs | 3 +- compiler/rustc_hir_analysis/src/lib.rs | 4 +- .../rustc_hir_analysis/src/outlives/mod.rs | 2 +- compiler/rustc_hir_typeck/src/callee.rs | 3 +- compiler/rustc_hir_typeck/src/coercion.rs | 4 +- compiler/rustc_hir_typeck/src/demand.rs | 4 +- compiler/rustc_hir_typeck/src/expr.rs | 6 +- .../rustc_hir_typeck/src/fn_ctxt/_impl.rs | 2 +- .../rustc_hir_typeck/src/fn_ctxt/checks.rs | 6 +- .../src/fn_ctxt/suggestions.rs | 29 ++++---- .../rustc_hir_typeck/src/method/suggest.rs | 2 +- compiler/rustc_hir_typeck/src/pat.rs | 2 +- compiler/rustc_hir_typeck/src/upvar.rs | 2 +- compiler/rustc_lint/src/builtin.rs | 2 +- .../rustc_lint/src/drop_forget_useless.rs | 2 +- compiler/rustc_lint/src/if_let_rescope.rs | 4 +- compiler/rustc_lint/src/internal.rs | 4 +- compiler/rustc_lint/src/shadowed_into_iter.rs | 2 +- .../src/unqualified_local_imports.rs | 2 +- compiler/rustc_middle/src/hir/map.rs | 72 ++++++++++--------- compiler/rustc_middle/src/lint.rs | 2 +- compiler/rustc_middle/src/middle/stability.rs | 2 +- compiler/rustc_middle/src/ty/context.rs | 2 +- .../rustc_mir_build/src/check_unsafety.rs | 4 +- .../src/thir/pattern/check_match.rs | 4 +- compiler/rustc_passes/src/check_attr.rs | 12 ++-- compiler/rustc_passes/src/liveness.rs | 2 +- compiler/rustc_passes/src/stability.rs | 2 +- .../nice_region_error/static_impl_trait.rs | 6 +- .../error_reporting/infer/note_and_explain.rs | 4 +- .../src/error_reporting/traits/mod.rs | 2 +- .../src/error_reporting/traits/suggestions.rs | 7 +- compiler/rustc_trait_selection/src/errors.rs | 3 +- compiler/rustc_ty_utils/src/assoc.rs | 2 +- compiler/rustc_ty_utils/src/opaque_types.rs | 4 +- src/librustdoc/scrape_examples.rs | 2 +- .../clippy_lints/src/assigning_clones.rs | 2 +- .../clippy_lints/src/doc/missing_headers.rs | 3 +- src/tools/clippy/clippy_lints/src/doc/mod.rs | 2 +- src/tools/clippy/clippy_lints/src/escape.rs | 3 +- src/tools/clippy/clippy_lints/src/exit.rs | 2 +- .../clippy_lints/src/indexing_slicing.rs | 6 +- .../clippy_lints/src/large_stack_arrays.rs | 2 +- .../clippy_lints/src/loops/infinite_loop.rs | 2 +- .../clippy_lints/src/loops/manual_find.rs | 2 +- .../src/loops/needless_range_loop.rs | 4 +- .../src/matches/redundant_pattern_match.rs | 2 +- .../clippy_lints/src/methods/is_empty.rs | 3 +- .../clippy_lints/src/methods/iter_nth_zero.rs | 2 +- .../src/methods/manual_c_str_literals.rs | 2 +- .../src/methods/manual_inspect.rs | 2 +- .../clippy/clippy_lints/src/methods/mod.rs | 2 +- .../clippy_lints/src/methods/or_fun_call.rs | 2 +- .../clippy_lints/src/methods/str_splitn.rs | 6 +- .../src/methods/unnecessary_to_owned.rs | 2 +- .../clippy_lints/src/min_ident_chars.rs | 6 +- .../clippy_lints/src/missing_const_for_fn.rs | 2 +- .../src/missing_const_for_thread_local.rs | 2 +- .../clippy_lints/src/needless_borrowed_ref.rs | 3 +- .../clippy_lints/src/needless_late_init.rs | 2 +- .../src/needless_pass_by_ref_mut.rs | 3 +- .../clippy_lints/src/new_without_default.rs | 2 +- .../clippy/clippy_lints/src/no_effect.rs | 2 +- .../clippy/clippy_lints/src/non_copy_const.rs | 2 +- .../clippy_lints/src/non_zero_suggestions.rs | 2 +- .../src/operators/assign_op_pattern.rs | 2 +- .../clippy_lints/src/operators/identity_op.rs | 4 +- .../clippy_lints/src/panic_unimplemented.rs | 4 +- src/tools/clippy/clippy_lints/src/ptr.rs | 3 +- .../clippy_lints/src/redundant_locals.rs | 5 +- src/tools/clippy/clippy_lints/src/returns.rs | 5 +- .../src/self_named_constructors.rs | 2 +- src/tools/clippy/clippy_lints/src/shadow.rs | 10 +-- .../src/significant_drop_tightening.rs | 3 +- .../clippy_lints/src/suspicious_trait_impl.rs | 4 +- .../src/transmute/eager_transmute.rs | 2 +- .../missing_transmute_annotations.rs | 2 +- .../clippy/clippy_lints/src/types/mod.rs | 5 +- .../src/unconditional_recursion.rs | 6 +- .../src/undocumented_unsafe_blocks.rs | 5 +- .../clippy_lints/src/unused_io_amount.rs | 2 +- .../clippy_lints/src/unused_peekable.rs | 2 +- .../clippy/clippy_lints/src/unused_self.rs | 2 +- .../clippy_lints/src/zero_sized_map_values.rs | 4 +- src/tools/clippy/clippy_utils/src/higher.rs | 2 +- src/tools/clippy/clippy_utils/src/lib.rs | 51 +++++++------ src/tools/clippy/clippy_utils/src/macros.rs | 2 +- 105 files changed, 243 insertions(+), 273 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index b2cc58fbe116..5a526da0087e 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -386,7 +386,6 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { } } let tcx = self.infcx.tcx; - let hir = self.infcx.tcx.hir(); if let Some(body) = tcx.hir_maybe_body_owned_by(self.mir_def_id()) { let expr = body.value; let place = &self.move_data.move_paths[mpi].place; @@ -402,7 +401,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { if let Some(span) = span && let Some(expr) = finder.expr { - for (_, expr) in hir.parent_iter(expr.hir_id) { + for (_, expr) in tcx.hir_parent_iter(expr.hir_id) { if let hir::Node::Expr(expr) = expr { if expr.span.contains(span) { // If the let binding occurs within the same loop, then that @@ -969,7 +968,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { let mut parent = None; // The top-most loop where the moved expression could be moved to a new binding. let mut outer_most_loop: Option<&hir::Expr<'_>> = None; - for (_, node) in tcx.hir().parent_iter(expr.hir_id) { + for (_, node) in tcx.hir_parent_iter(expr.hir_id) { let e = match node { hir::Node::Expr(e) => e, hir::Node::LetStmt(hir::LetStmt { els: Some(els), .. }) => { @@ -1021,8 +1020,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { } } let loop_count: usize = tcx - .hir() - .parent_iter(expr.hir_id) + .hir_parent_iter(expr.hir_id) .map(|(_, node)| match node { hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Loop(..), .. }) => 1, _ => 0, @@ -1048,8 +1046,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { .collect::>(); // All of the spans for the loops above the expression with the move error. let loop_spans: Vec<_> = tcx - .hir() - .parent_iter(expr.hir_id) + .hir_parent_iter(expr.hir_id) .filter_map(|(_, node)| match node { hir::Node::Expr(hir::Expr { span, kind: hir::ExprKind::Loop(..), .. }) => { Some(*span) @@ -1334,7 +1331,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { } fn in_move_closure(&self, expr: &hir::Expr<'_>) -> bool { - for (_, node) in self.infcx.tcx.hir().parent_iter(expr.hir_id) { + for (_, node) in self.infcx.tcx.hir_parent_iter(expr.hir_id) { if let hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(closure), .. }) = node && let hir::CaptureBy::Value { .. } = closure.capture_clause { @@ -2118,7 +2115,6 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { issued_span: Span, ) { let tcx = self.infcx.tcx; - let hir = tcx.hir(); let has_split_at_mut = |ty: Ty<'tcx>| { let ty = ty.peel_refs(); @@ -2171,7 +2167,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { return; }; - let Some(object) = hir.parent_id_iter(index1.hir_id).find_map(|id| { + let Some(object) = tcx.hir_parent_id_iter(index1.hir_id).find_map(|id| { if let hir::Node::Expr(expr) = tcx.hir_node(id) && let hir::ExprKind::Index(obj, ..) = expr.kind { @@ -2189,7 +2185,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { return; }; - let Some(swap_call) = hir.parent_id_iter(object.hir_id).find_map(|id| { + let Some(swap_call) = tcx.hir_parent_id_iter(object.hir_id).find_map(|id| { if let hir::Node::Expr(call) = tcx.hir_node(id) && let hir::ExprKind::Call(callee, ..) = call.kind && let hir::ExprKind::Path(qpath) = callee.kind diff --git a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs index a88b27f24767..b2b66eabb38b 100644 --- a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs +++ b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs @@ -117,7 +117,7 @@ impl<'tcx> BorrowExplanation<'tcx> { let local_decl = &body.local_decls[dropped_local]; if let &LocalInfo::IfThenRescopeTemp { if_then } = local_decl.local_info() - && let Some((_, hir::Node::Expr(expr))) = tcx.hir().parent_iter(if_then).next() + && let Some((_, hir::Node::Expr(expr))) = tcx.hir_parent_iter(if_then).next() && let hir::ExprKind::If(cond, conseq, alt) = expr.kind && let hir::ExprKind::Let(&hir::LetExpr { span: _, @@ -522,7 +522,7 @@ fn suggest_rewrite_if_let( ); if expr.span.can_be_used_for_suggestions() && conseq.span.can_be_used_for_suggestions() { let needs_block = if let Some(hir::Node::Expr(expr)) = - alt.and_then(|alt| tcx.hir().parent_iter(alt.hir_id).next()).map(|(_, node)| node) + alt.and_then(|alt| tcx.hir_parent_iter(alt.hir_id).next()).map(|(_, node)| node) { matches!(expr.kind, hir::ExprKind::If(..)) } else { diff --git a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs index ddf6187a662e..5e83d2ffa97a 100644 --- a/compiler/rustc_borrowck/src/diagnostics/move_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/move_errors.rs @@ -388,7 +388,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { // Search for an appropriate place for the structured `.clone()` suggestion to be applied. // If we encounter a statement before the borrow error, we insert a statement there. - for (_, node) in tcx.hir().parent_iter(closure_expr.hir_id) { + for (_, node) in tcx.hir_parent_iter(closure_expr.hir_id) { if let Node::Stmt(stmt) = node { let padding = tcx .sess diff --git a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs index be83e61f75d8..be4a7736b1c2 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mutability_errors.rs @@ -404,7 +404,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { pat.kind { if upvar_ident.name == kw::SelfLower { - for (_, node) in self.infcx.tcx.hir().parent_iter(upvar_hir_id) { + for (_, node) in self.infcx.tcx.hir_parent_iter(upvar_hir_id) { if let Some(fn_decl) = node.fn_decl() { if !matches!( fn_decl.implicit_self, @@ -934,7 +934,6 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { err.span_label(sp, format!("cannot {act}")); let tcx = self.infcx.tcx; - let hir = tcx.hir(); let closure_id = self.mir_hir_id(); let closure_span = tcx.def_span(self.mir_def_id()); let fn_call_id = tcx.parent_hir_id(closure_id); @@ -1017,10 +1016,10 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { } } - if look_at_return && hir.get_fn_id_for_return_block(closure_id).is_some() { + if look_at_return && tcx.hir_get_fn_id_for_return_block(closure_id).is_some() { // ...otherwise we are probably in the tail expression of the function, point at the // return type. - match tcx.hir_node_by_def_id(hir.get_parent_item(fn_call_id).def_id) { + match tcx.hir_node_by_def_id(tcx.hir_get_parent_item(fn_call_id).def_id) { hir::Node::Item(hir::Item { ident, kind: hir::ItemKind::Fn { sig, .. }, .. }) diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index b036e6e950b9..88804560f28e 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -671,7 +671,6 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { #[instrument(level = "trace", skip(self))] fn give_name_if_anonymous_region_appears_in_output(&self, fr: RegionVid) -> Option { let tcx = self.infcx.tcx; - let hir = tcx.hir(); let return_ty = self.regioncx.universal_regions().unnormalized_output_ty; debug!("give_name_if_anonymous_region_appears_in_output: return_ty = {:?}", return_ty); @@ -711,7 +710,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { hir::CoroutineSource::Fn, )) => { let parent_item = - tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(tcx.hir_get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from async fn should be in fn") @@ -741,7 +740,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { hir::CoroutineSource::Fn, )) => { let parent_item = - tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(tcx.hir_get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from gen fn should be in fn") @@ -768,7 +767,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { hir::CoroutineSource::Fn, )) => { let parent_item = - tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id); + tcx.hir_node_by_def_id(tcx.hir_get_parent_item(mir_hir_id).def_id); let output = &parent_item .fn_decl() .expect("coroutine lowered from async gen fn should be in fn") diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 516ecbcfe0ef..b1b046d71752 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -482,7 +482,7 @@ fn best_definition_site_of_opaque<'tcx>( None } hir::OpaqueTyOrigin::TyAlias { in_assoc_ty: false, .. } => { - let scope = tcx.hir().get_defining_scope(tcx.local_def_id_to_hir_id(opaque_def_id)); + let scope = tcx.hir_get_defining_scope(tcx.local_def_id_to_hir_id(opaque_def_id)); let found = if scope == hir::CRATE_HIR_ID { tcx.hir_walk_toplevel_module(&mut locator) } else { diff --git a/compiler/rustc_hir_analysis/src/check/mod.rs b/compiler/rustc_hir_analysis/src/check/mod.rs index 7b3c3ea2bb46..1c5455710db8 100644 --- a/compiler/rustc_hir_analysis/src/check/mod.rs +++ b/compiler/rustc_hir_analysis/src/check/mod.rs @@ -127,7 +127,7 @@ fn get_owner_return_paths( def_id: LocalDefId, ) -> Option<(LocalDefId, ReturnsVisitor<'_>)> { let hir_id = tcx.local_def_id_to_hir_id(def_id); - let parent_id = tcx.hir().get_parent_item(hir_id).def_id; + let parent_id = tcx.hir_get_parent_item(hir_id).def_id; tcx.hir_node_by_def_id(parent_id).body_id().map(|body_id| { let body = tcx.hir_body(body_id); let mut visitor = ReturnsVisitor::default(); diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index f98504e19dec..e6ea6eddcaaf 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -853,7 +853,7 @@ fn could_be_self(trait_def_id: LocalDefId, ty: &hir::Ty<'_>) -> bool { /// In such cases, suggest using `Self` instead. fn check_dyn_incompatible_self_trait_by_name(tcx: TyCtxt<'_>, item: &hir::TraitItem<'_>) { let (trait_name, trait_def_id) = - match tcx.hir_node_by_def_id(tcx.hir().get_parent_item(item.hir_id()).def_id) { + match tcx.hir_node_by_def_id(tcx.hir_get_parent_item(item.hir_id()).def_id) { hir::Node::Item(item) => match item.kind { hir::ItemKind::Trait(..) => (item.ident, item.owner_id), _ => return, diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 75ea207a06bb..5bb77c096dcf 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -469,7 +469,7 @@ impl<'tcx> HirTyLowerer<'tcx> for ItemCtxt<'tcx> { let item = self .tcx .hir() - .expect_item(self.tcx.hir().get_parent_item(self.hir_id()).def_id); + .expect_item(self.tcx.hir_get_parent_item(self.hir_id()).def_id); match &item.kind { hir::ItemKind::Enum(_, generics) | hir::ItemKind::Struct(_, generics) @@ -1349,7 +1349,7 @@ fn fn_sig(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<'_, ty::PolyFn } Ctor(data) | Variant(hir::Variant { data, .. }) if data.ctor().is_some() => { - let adt_def_id = tcx.hir().get_parent_item(hir_id).def_id.to_def_id(); + let adt_def_id = tcx.hir_get_parent_item(hir_id).def_id.to_def_id(); let ty = tcx.type_of(adt_def_id).instantiate_identity(); let inputs = data.fields().iter().map(|f| tcx.type_of(f.def_id).instantiate_identity()); // constructors for structs with `layout_scalar_valid_range` are unsafe to call diff --git a/compiler/rustc_hir_analysis/src/collect/generics_of.rs b/compiler/rustc_hir_analysis/src/collect/generics_of.rs index c0902398a54a..a363076b75ac 100644 --- a/compiler/rustc_hir_analysis/src/collect/generics_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/generics_of.rs @@ -71,7 +71,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics { | Node::Variant(_) | Node::Ctor(..) | Node::Field(_) => { - let parent_id = tcx.hir().get_parent_item(hir_id); + let parent_id = tcx.hir_get_parent_item(hir_id); Some(parent_id.to_def_id()) } // FIXME(#43408) always enable this once `lazy_normalization` is @@ -90,12 +90,12 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics { let parent_did = if let DefKind::AnonConst = tcx.def_kind(parent_did) { parent_did } else { - tcx.hir().get_parent_item(hir_id).to_def_id() + tcx.hir_get_parent_item(hir_id).to_def_id() }; debug!(?parent_did); let mut in_param_ty = false; - for (_parent, node) in tcx.hir().parent_iter(hir_id) { + for (_parent, node) in tcx.hir_parent_iter(hir_id) { if let Some(generics) = node.generics() { let mut visitor = AnonConstInParamTyDetector { in_param_ty: false, ct: hir_id }; diff --git a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs index 7b1fff157b54..5b511d270743 100644 --- a/compiler/rustc_hir_analysis/src/collect/predicates_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/predicates_of.rs @@ -382,8 +382,7 @@ fn const_evaluatable_predicates_of<'tcx>( fn is_const_param_default(tcx: TyCtxt<'_>, def: LocalDefId) -> bool { let hir_id = tcx.local_def_id_to_hir_id(def); let (_, parent_node) = tcx - .hir() - .parent_iter(hir_id) + .hir_parent_iter(hir_id) .skip_while(|(_, n)| matches!(n, Node::ConstArg(..))) .next() .unwrap(); diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 293a095b41d0..717713d93399 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -107,7 +107,7 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx } } Node::Variant(Variant { disr_expr: Some(ref e), .. }) if e.hir_id == hir_id => { - tcx.adt_def(tcx.hir().get_parent_item(hir_id)).repr().discr_type().to_ty(tcx) + tcx.adt_def(tcx.hir_get_parent_item(hir_id)).repr().discr_type().to_ty(tcx) } // Sort of affects the type system, but only for the purpose of diagnostics // so no need for ConstArg. @@ -257,7 +257,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<'_ } } ImplItemKind::Type(ty) => { - if tcx.impl_trait_ref(tcx.hir().get_parent_item(hir_id)).is_none() { + if tcx.impl_trait_ref(tcx.hir_get_parent_item(hir_id)).is_none() { check_feature_inherent_assoc_ty(tcx, item.span); } @@ -341,7 +341,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<'_ Node::Ctor(def) | Node::Variant(Variant { data: def, .. }) => match def { VariantData::Unit(..) | VariantData::Struct { .. } => { - tcx.type_of(tcx.hir().get_parent_item(hir_id)).instantiate_identity() + tcx.type_of(tcx.hir_get_parent_item(hir_id)).instantiate_identity() } VariantData::Tuple(_, _, ctor) => { let args = ty::GenericArgs::identity_for_item(tcx, def_id); diff --git a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs index 0c36888f3639..399c4fbe55a9 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of/opaque.rs @@ -83,7 +83,7 @@ pub(super) fn find_opaque_ty_constraints_for_impl_trait_in_assoc_type( #[instrument(skip(tcx), level = "debug")] pub(super) fn find_opaque_ty_constraints_for_tait(tcx: TyCtxt<'_>, def_id: LocalDefId) -> Ty<'_> { let hir_id = tcx.local_def_id_to_hir_id(def_id); - let scope = tcx.hir().get_defining_scope(hir_id); + let scope = tcx.hir_get_defining_scope(hir_id); let mut locator = TaitConstraintLocator { def_id, tcx, found: None, typeck_types: vec![] }; debug!(?scope); diff --git a/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs b/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs index 681e8e36d589..610b293a114e 100644 --- a/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs +++ b/compiler/rustc_hir_analysis/src/errors/wrong_number_of_generic_args.rs @@ -134,9 +134,9 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { // is from the 'of_trait' field of the enclosing impl let parent = self.tcx.parent_hir_node(self.path_segment.hir_id); - let parent_item = self.tcx.hir_node_by_def_id( - self.tcx.hir().get_parent_item(self.path_segment.hir_id).def_id, - ); + let parent_item = self + .tcx + .hir_node_by_def_id(self.tcx.hir_get_parent_item(self.path_segment.hir_id).def_id); // Get the HIR id of the trait ref let hir::Node::TraitRef(hir::TraitRef { hir_ref_id: trait_ref_id, .. }) = parent else { @@ -343,7 +343,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { let mut ret = Vec::new(); let mut ty_id = None; - for (id, node) in self.tcx.hir().parent_iter(path_hir_id) { + for (id, node) in self.tcx.hir_parent_iter(path_hir_id) { debug!(?id); if let hir::Node::Ty(_) = node { ty_id = Some(id); @@ -437,8 +437,7 @@ impl<'a, 'tcx> WrongNumberOfGenericArgs<'a, 'tcx> { ) -> String { let is_in_a_method_call = self .tcx - .hir() - .parent_iter(self.path_segment.hir_id) + .hir_parent_iter(self.path_segment.hir_id) .skip(1) .find_map(|(_, node)| match node { hir::Node::Expr(expr) => Some(expr), diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs index 75c97001c327..dd346ed1f97a 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/bounds.rs @@ -736,8 +736,7 @@ fn check_assoc_const_binding_type<'tcx>( .map(|ty| crate::errors::TyOfAssocConstBindingNote { assoc_const, ty }); let enclosing_item_owner_id = tcx - .hir() - .parent_owner_iter(hir_id) + .hir_parent_owner_iter(hir_id) .find_map(|(owner_id, parent)| parent.generics().map(|_| owner_id)) .unwrap(); let generics = tcx.generics_of(enclosing_item_owner_id); diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs index d2789cc0fd62..d644a1f224c7 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/errors.rs @@ -223,7 +223,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { // inside an opaque type while we're interested in the overarching type alias (TAIT). // FIXME: However, for trait aliases, this incorrectly returns the enclosing module... && let item_def_id = - tcx.hir().get_parent_item(tcx.local_def_id_to_hir_id(ty_param_def_id)) + tcx.hir_get_parent_item(tcx.local_def_id_to_hir_id(ty_param_def_id)) // FIXME: ...which obviously won't have any generics. && let Some(generics) = tcx.hir_get_generics(item_def_id.def_id) { @@ -979,7 +979,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { qself: &hir::Ty<'_>, ) -> Result<(), ErrorGuaranteed> { let tcx = self.tcx(); - if let Some((_, node)) = tcx.hir().parent_iter(qself.hir_id).skip(1).next() + if let Some((_, node)) = tcx.hir_parent_iter(qself.hir_id).skip(1).next() && let hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Path(hir::QPath::TypeRelative( @@ -1278,8 +1278,7 @@ pub fn prohibit_assoc_item_constraint( // Get the parent impl block based on the binding we have // and the trait DefId let impl_block = tcx - .hir() - .parent_iter(constraint.hir_id) + .hir_parent_iter(constraint.hir_id) .find_map(|(_, node)| node.impl_block_of_trait(def_id)); let type_with_constraints = diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs index 17de64db6290..8d58a3bfbd3c 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/generics.rs @@ -542,8 +542,7 @@ pub(crate) fn check_generic_arg_count( // ``` let parent_is_impl_block = cx .tcx() - .hir() - .parent_owner_iter(seg.hir_id) + .hir_parent_owner_iter(seg.hir_id) .next() .is_some_and(|(_, owner_node)| owner_node.is_impl_block()); if parent_is_impl_block { diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs index 44f7a035a10f..f5e075367f33 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/lint.rs @@ -130,7 +130,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { diag: &mut Diag<'_, G>, ) { let tcx = self.tcx(); - let parent_id = tcx.hir().get_parent_item(self_ty.hir_id).def_id; + let parent_id = tcx.hir_get_parent_item(self_ty.hir_id).def_id; if let hir::Node::Item(hir::Item { kind: hir::ItemKind::Impl(hir::Impl { self_ty: impl_self_ty, of_trait, generics, .. }), .. @@ -191,7 +191,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { /// Make sure that we are in the condition to suggest `impl Trait`. fn maybe_suggest_impl_trait(&self, self_ty: &hir::Ty<'_>, diag: &mut Diag<'_>) -> bool { let tcx = self.tcx(); - let parent_id = tcx.hir().get_parent_item(self_ty.hir_id).def_id; + let parent_id = tcx.hir_get_parent_item(self_ty.hir_id).def_id; // FIXME: If `type_alias_impl_trait` is enabled, also look for `Trait0` // and suggest `Trait0`. // Functions are found in three different contexts. @@ -321,7 +321,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } fn maybe_suggest_assoc_ty_bound(&self, self_ty: &hir::Ty<'_>, diag: &mut Diag<'_>) { - let mut parents = self.tcx().hir().parent_iter(self_ty.hir_id); + let mut parents = self.tcx().hir_parent_iter(self_ty.hir_id); if let Some((_, hir::Node::AssocItemConstraint(constraint))) = parents.next() && let Some(obj_ty) = constraint.ty() diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs index e9b99caf737b..fcd0d4d40fd4 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -1673,8 +1673,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { debug!(item_def_id = ?def_id); // FIXME: document why/how this is different from `tcx.local_parent(def_id)` - let parent_def_id = - tcx.hir().get_parent_item(tcx.local_def_id_to_hir_id(def_id)).to_def_id(); + let parent_def_id = tcx.hir_get_parent_item(tcx.local_def_id_to_hir_id(def_id)).to_def_id(); debug!(?parent_def_id); // If the trait in segment is the same as the trait defining the item, diff --git a/compiler/rustc_hir_analysis/src/lib.rs b/compiler/rustc_hir_analysis/src/lib.rs index 0859a39b1556..bdfbd540e40a 100644 --- a/compiler/rustc_hir_analysis/src/lib.rs +++ b/compiler/rustc_hir_analysis/src/lib.rs @@ -251,7 +251,7 @@ pub fn lower_ty<'tcx>(tcx: TyCtxt<'tcx>, hir_ty: &hir::Ty<'tcx>) -> Ty<'tcx> { // In case there are any projections, etc., find the "environment" // def-ID that will be used to determine the traits/predicates in // scope. This is derived from the enclosing item-like thing. - let env_def_id = tcx.hir().get_parent_item(hir_ty.hir_id); + let env_def_id = tcx.hir_get_parent_item(hir_ty.hir_id); collect::ItemCtxt::new(tcx, env_def_id.def_id).lower_ty(hir_ty) } @@ -262,6 +262,6 @@ pub fn lower_const_arg_for_rustdoc<'tcx>( hir_ct: &hir::ConstArg<'tcx>, feed: FeedConstTy, ) -> Const<'tcx> { - let env_def_id = tcx.hir().get_parent_item(hir_ct.hir_id); + let env_def_id = tcx.hir_get_parent_item(hir_ct.hir_id); collect::ItemCtxt::new(tcx, env_def_id.def_id).lowerer().lower_const_arg(hir_ct, feed) } diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index c43917649de2..32b05dcc569e 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -37,7 +37,7 @@ fn inferred_outlives_of(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[(ty::Clau // parent of generics returned by `generics_of` // // In the above code we want the anon const to have predicates in its param env for `'b: 'a` - let item_def_id = tcx.hir().get_parent_item(id); + let item_def_id = tcx.hir_get_parent_item(id); // In the above code example we would be calling `inferred_outlives_of(Foo)` here tcx.inferred_outlives_of(item_def_id) } else { diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index 49ea2181b075..5de3c05c63c5 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -346,7 +346,6 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; - let hir = self.tcx.hir(); let fn_decl_span = if let hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. @@ -368,7 +367,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { }), .. }), - )) = hir.parent_iter(hir_id).nth(3) + )) = self.tcx.hir_parent_iter(hir_id).nth(3) { // Actually need to unwrap one more layer of HIR to get to // the _real_ closure... diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index cf11bccae0ac..625c7f38fbb4 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -1752,7 +1752,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { return false; } let Some((_, hir::Node::Expr(expr))) = - fcx.tcx.hir().parent_iter(id).nth(1) + fcx.tcx.hir_parent_iter(id).nth(1) else { return false; }; @@ -1909,7 +1909,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { found, block_or_return_id, ); - if let Some(cond_expr) = fcx.tcx.hir().get_if_cause(expr.hir_id) + if let Some(cond_expr) = fcx.tcx.hir_get_if_cause(expr.hir_id) && expected.is_unit() && !pointing_at_return_type // If the block is from an external macro or try (`?`) desugaring, then diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 4dc736f72cf8..38c07e473db3 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -156,7 +156,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { && segment.ident.name.as_str() == name && let Res::Local(hir_id) = path.res && let Some((_, hir::Node::Expr(match_expr))) = - self.tcx.hir().parent_iter(hir_id).nth(2) + self.tcx.hir_parent_iter(hir_id).nth(2) && let hir::ExprKind::Match(scrutinee, _, _) = match_expr.kind && let hir::ExprKind::Tup(exprs) = scrutinee.kind && let hir::ExprKind::AddrOf(_, _, macro_arg) = exprs[idx].kind @@ -841,7 +841,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // The pattern we have is an fn argument. && let hir::Node::Param(hir::Param { ty_span, .. }) = self.tcx.parent_hir_node(pat.hir_id) - && let item = self.tcx.hir().get_parent_item(pat.hir_id) + && let item = self.tcx.hir_get_parent_item(pat.hir_id) && let item = self.tcx.hir_owner_node(item) && let Some(fn_decl) = item.fn_decl() diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 1c63b8b36559..277396da19c1 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -1130,7 +1130,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { statement_kind: kind, }; - let encl_item_id = self.tcx.hir().get_parent_item(expr.hir_id); + let encl_item_id = self.tcx.hir_get_parent_item(expr.hir_id); if let hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn { .. }, @@ -1279,7 +1279,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Check if our original expression is a child of the condition of a while loop. // If it is, then we have a situation like `while Some(0) = value.get(0) {`, // where `while let` was more likely intended. - if self.tcx.hir().parent_id_iter(original_expr_id).any(|id| id == expr.hir_id) { + if self.tcx.hir_parent_id_iter(original_expr_id).any(|id| id == expr.hir_id) { then(expr); } break; @@ -1774,7 +1774,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } fn suggest_array_len(&self, expr: &'tcx hir::Expr<'tcx>, array_len: u64) { - let parent_node = self.tcx.hir().parent_iter(expr.hir_id).find(|(_, node)| { + let parent_node = self.tcx.hir_parent_iter(expr.hir_id).find(|(_, node)| { !matches!(node, hir::Node::Expr(hir::Expr { kind: hir::ExprKind::AddrOf(..), .. })) }); let Some((_, hir::Node::LetStmt(hir::LetStmt { ty: Some(ty), .. }))) = parent_node else { diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs index ff41a080d629..2d7d80e39bc3 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/_impl.rs @@ -856,7 +856,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) -> Option<(LocalDefId, &'tcx hir::FnDecl<'tcx>)> { // Get enclosing Fn, if it is a function or a trait method, unless there's a `loop` or // `while` before reaching it, as block tail returns are not available in them. - self.tcx.hir().get_fn_id_for_return_block(blk_id).and_then(|item_id| { + self.tcx.hir_get_fn_id_for_return_block(blk_id).and_then(|item_id| { match self.tcx.hir_node(item_id) { Node::Item(&hir::Item { kind: hir::ItemKind::Fn { sig, .. }, owner_id, .. diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 7ca44d23e3ed..cf61659479b1 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -2052,7 +2052,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } fn parent_item_span(&self, id: HirId) -> Option { - let node = self.tcx.hir_node_by_def_id(self.tcx.hir().get_parent_item(id).def_id); + let node = self.tcx.hir_node_by_def_id(self.tcx.hir_get_parent_item(id).def_id); match node { Node::Item(&hir::Item { kind: hir::ItemKind::Fn { body: body_id, .. }, .. }) | Node::ImplItem(&hir::ImplItem { kind: hir::ImplItemKind::Fn(_, body_id), .. }) => { @@ -2179,7 +2179,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { { let mut block_num = 0; let mut found_semi = false; - for (hir_id, node) in self.tcx.hir().parent_iter(binding_hir_id) { + for (hir_id, node) in self.tcx.hir_parent_iter(binding_hir_id) { // Don't proceed into parent bodies if hir_id.owner != binding_hir_id.owner { break; @@ -2521,7 +2521,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Try to find earlier invocations of this closure to find if the type mismatch // is because of inference. If we find one, point at them. let mut call_finder = FindClosureArg { tcx: self.tcx, calls: vec![] }; - let parent_def_id = self.tcx.hir().get_parent_item(call_expr.hir_id).def_id; + let parent_def_id = self.tcx.hir_get_parent_item(call_expr.hir_id).def_id; match self.tcx.hir_node_by_def_id(parent_def_id) { hir::Node::Item(item) => call_finder.visit_item(item), hir::Node::TraitItem(item) => call_finder.visit_trait_item(item), diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs index 347a6557c2aa..f9fc12159363 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs @@ -308,7 +308,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { }; let mut tuple_indexes = Vec::new(); let mut expr_id = expr.hir_id; - for (parent_id, node) in self.tcx.hir().parent_iter(expr.hir_id) { + for (parent_id, node) in self.tcx.hir_parent_iter(expr.hir_id) { match node { Node::Expr(&Expr { kind: ExprKind::Tup(subs), .. }) => { tuple_indexes.push( @@ -565,7 +565,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { found: Ty<'tcx>, ) -> bool { // Do not suggest `Box::new` in const context. - if self.tcx.hir().is_inside_const_context(hir_id) || !expected.is_box() || found.is_box() { + if self.tcx.hir_is_inside_const_context(hir_id) || !expected.is_box() || found.is_box() { return false; } if self.may_coerce(Ty::new_box(self.tcx, found), expected) { @@ -645,7 +645,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { ) -> bool { // Handle #68197. - if self.tcx.hir().is_inside_const_context(expr.hir_id) { + if self.tcx.hir_is_inside_const_context(expr.hir_id) { // Do not suggest `Box::new` in const context. return false; } @@ -1084,8 +1084,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let in_loop = self.is_loop(id) || self .tcx - .hir() - .parent_iter(id) + .hir_parent_iter(id) .take_while(|(_, node)| { // look at parents until we find the first body owner node.body_id().is_none() @@ -1095,8 +1094,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let in_local_statement = self.is_local_statement(id) || self .tcx - .hir() - .parent_iter(id) + .hir_parent_iter(id) .any(|(parent_id, _)| self.is_local_statement(parent_id)); if in_loop && in_local_statement { @@ -1111,7 +1109,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; } - let scope = self.tcx.hir().parent_iter(id).find(|(_, node)| { + let scope = self.tcx.hir_parent_iter(id).find(|(_, node)| { matches!( node, Node::Expr(Expr { kind: ExprKind::Closure(..), .. }) @@ -1168,7 +1166,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // -------------^^^^^^^- // Don't add semicolon `;` at the end of `dbg!(x)` expr fn is_in_arm<'tcx>(expr: &'tcx hir::Expr<'tcx>, tcx: TyCtxt<'tcx>) -> bool { - for (_, node) in tcx.hir().parent_iter(expr.hir_id) { + for (_, node) in tcx.hir_parent_iter(expr.hir_id) { match node { hir::Node::Block(block) => { if let Some(ret) = block.expr @@ -1411,8 +1409,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return false; } - let hir = self.tcx.hir(); - let cond_parent = hir.parent_iter(expr.hir_id).find(|(_, node)| { + let cond_parent = self.tcx.hir_parent_iter(expr.hir_id).find(|(_, node)| { !matches!(node, hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Binary(op, _, _), .. }) if op.node == hir::BinOpKind::And) }); // Don't suggest: @@ -2048,11 +2045,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected: Ty<'tcx>, found: Ty<'tcx>, ) -> bool { - let map = self.tcx.hir(); let returned = matches!( self.tcx.parent_hir_node(expr.hir_id), hir::Node::Expr(hir::Expr { kind: hir::ExprKind::Ret(_), .. }) - ) || map.get_fn_id_for_return_block(expr.hir_id).is_some(); + ) || self.tcx.hir_get_fn_id_for_return_block(expr.hir_id).is_some(); if returned && let ty::Adt(e, args_e) = expected.kind() && let ty::Adt(f, args_f) = found.kind() @@ -2095,9 +2091,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { expected: Ty<'tcx>, ) -> bool { let tcx = self.tcx; - let hir = tcx.hir(); let enclosing_scope = - hir.get_enclosing_scope(expr.hir_id).map(|hir_id| tcx.hir_node(hir_id)); + tcx.hir_get_enclosing_scope(expr.hir_id).map(|hir_id| tcx.hir_node(hir_id)); // Get tail expr of the enclosing block or body let tail_expr = if let Some(Node::Block(hir::Block { expr, .. })) = enclosing_scope @@ -3098,7 +3093,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { |expr: &hir::Expr<'_>| matches!(expr.kind, hir::ExprKind::Unary(hir::UnOp::Neg, ..)); let is_uint = |ty: Ty<'_>| matches!(ty.kind(), ty::Uint(..)); - let in_const_context = self.tcx.hir().is_inside_const_context(expr.hir_id); + let in_const_context = self.tcx.hir_is_inside_const_context(expr.hir_id); let suggest_fallible_into_or_lhs_from = |err: &mut Diag<'_>, exp_to_found_is_fallible: bool| { @@ -3142,7 +3137,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let suggest_to_change_suffix_or_into = |err: &mut Diag<'_>, found_to_exp_is_fallible: bool, exp_to_found_is_fallible: bool| { - let exp_is_lhs = expected_ty_expr.is_some_and(|e| self.tcx.hir().is_lhs(e.hir_id)); + let exp_is_lhs = expected_ty_expr.is_some_and(|e| self.tcx.hir_is_lhs(e.hir_id)); if exp_is_lhs { return; diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 780ab8c18334..c757d089478f 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -2390,7 +2390,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { long_ty_path: &mut Option, ) -> Result<(), ErrorGuaranteed> { if let SelfSource::MethodCall(expr) = source { - for (_, parent) in tcx.hir().parent_iter(expr.hir_id).take(5) { + for (_, parent) in tcx.hir_parent_iter(expr.hir_id).take(5) { if let Node::Expr(parent_expr) = parent { let lang_item = match parent_expr.kind { ExprKind::Struct(qpath, _, _) => match *qpath { diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index e63cc090993f..c56396c38c95 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -946,7 +946,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let var_ty = self.resolve_vars_if_possible(var_ty); let msg = format!("first introduced with type `{var_ty}` here"); err.span_label(hir.span(var_id), msg); - let in_match = hir.parent_iter(var_id).any(|(_, n)| { + let in_match = self.tcx.hir_parent_iter(var_id).any(|(_, n)| { matches!( n, hir::Node::Expr(hir::Expr { diff --git a/compiler/rustc_hir_typeck/src/upvar.rs b/compiler/rustc_hir_typeck/src/upvar.rs index 762d04fdedd4..9a0b22470585 100644 --- a/compiler/rustc_hir_typeck/src/upvar.rs +++ b/compiler/rustc_hir_typeck/src/upvar.rs @@ -1934,7 +1934,7 @@ fn apply_capture_kind_on_capture_ty<'tcx>( /// Returns the Span of where the value with the provided HirId would be dropped fn drop_location_span(tcx: TyCtxt<'_>, hir_id: HirId) -> Span { - let owner_id = tcx.hir().get_enclosing_scope(hir_id).unwrap(); + let owner_id = tcx.hir_get_enclosing_scope(hir_id).unwrap(); let owner_node = tcx.hir_node(owner_id); let owner_span = match owner_node { diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index e449f1106131..b5f09ff346a7 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -466,7 +466,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingDoc { MethodLateContext::TraitAutoImpl => {} // If the method is an impl for an item with docs_hidden, don't doc. MethodLateContext::PlainImpl => { - let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()); + let parent = cx.tcx.hir_get_parent_item(impl_item.hir_id()); let impl_ty = cx.tcx.type_of(parent).instantiate_identity(); let outerdef = match impl_ty.kind() { ty::Adt(def, _) => Some(def.did()), diff --git a/compiler/rustc_lint/src/drop_forget_useless.rs b/compiler/rustc_lint/src/drop_forget_useless.rs index 1ca2e4e74ea6..7f098893f7de 100644 --- a/compiler/rustc_lint/src/drop_forget_useless.rs +++ b/compiler/rustc_lint/src/drop_forget_useless.rs @@ -147,7 +147,7 @@ impl<'tcx> LateLintPass<'tcx> for DropForgetUseless { let is_copy = cx.type_is_copy_modulo_regions(arg_ty); let drop_is_single_call_in_arm = is_single_call_in_arm(cx, arg, expr); let let_underscore_ignore_sugg = || { - if let Some((_, node)) = cx.tcx.hir().parent_iter(expr.hir_id).nth(0) + if let Some((_, node)) = cx.tcx.hir_parent_iter(expr.hir_id).nth(0) && let Node::Stmt(stmt) = node && let StmtKind::Semi(e) = stmt.kind && e.hir_id == expr.hir_id diff --git a/compiler/rustc_lint/src/if_let_rescope.rs b/compiler/rustc_lint/src/if_let_rescope.rs index 869dab6799d0..c1aa95667da6 100644 --- a/compiler/rustc_lint/src/if_let_rescope.rs +++ b/compiler/rustc_lint/src/if_let_rescope.rs @@ -95,7 +95,7 @@ pub(crate) struct IfLetRescope { } fn expr_parent_is_else(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool { - let Some((_, hir::Node::Expr(expr))) = tcx.hir().parent_iter(hir_id).next() else { + let Some((_, hir::Node::Expr(expr))) = tcx.hir_parent_iter(hir_id).next() else { return false; }; let hir::ExprKind::If(_cond, _conseq, Some(alt)) = expr.kind else { return false }; @@ -103,7 +103,7 @@ fn expr_parent_is_else(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool { } fn expr_parent_is_stmt(tcx: TyCtxt<'_>, hir_id: hir::HirId) -> bool { - let mut parents = tcx.hir().parent_iter(hir_id); + let mut parents = tcx.hir_parent_iter(hir_id); let stmt = match parents.next() { Some((_, hir::Node::Stmt(stmt))) => stmt, Some((_, hir::Node::Block(_) | hir::Node::Arm(_))) => return true, diff --git a/compiler/rustc_lint/src/internal.rs b/compiler/rustc_lint/src/internal.rs index ddc9ae1594f9..1f999bbea5fe 100644 --- a/compiler/rustc_lint/src/internal.rs +++ b/compiler/rustc_lint/src/internal.rs @@ -497,7 +497,7 @@ impl Diagnostics { return; }; - for (hir_id, _parent) in cx.tcx.hir().parent_iter(current_id) { + for (hir_id, _parent) in cx.tcx.hir_parent_iter(current_id) { if let Some(owner_did) = hir_id.as_owner() && cx.tcx.has_attr(owner_did, sym::rustc_lint_diagnostics) { @@ -512,7 +512,7 @@ impl Diagnostics { // // Otherwise, emit a `DIAGNOSTIC_OUTSIDE_OF_IMPL` lint. let mut is_inside_appropriate_impl = false; - for (_hir_id, parent) in cx.tcx.hir().parent_iter(current_id) { + for (_hir_id, parent) in cx.tcx.hir_parent_iter(current_id) { debug!(?parent); if let Node::Item(Item { kind: ItemKind::Impl(impl_), .. }) = parent && let Impl { of_trait: Some(of_trait), .. } = impl_ diff --git a/compiler/rustc_lint/src/shadowed_into_iter.rs b/compiler/rustc_lint/src/shadowed_into_iter.rs index 7cc35e20fcb6..571cab934fd6 100644 --- a/compiler/rustc_lint/src/shadowed_into_iter.rs +++ b/compiler/rustc_lint/src/shadowed_into_iter.rs @@ -128,7 +128,7 @@ impl<'tcx> LateLintPass<'tcx> for ShadowedIntoIter { // we should just suggest removing the `.into_iter()` or changing it to `.iter()` // to disambiguate if we want to iterate by-value or by-ref. let sub = if let Some((_, hir::Node::Expr(parent_expr))) = - cx.tcx.hir().parent_iter(expr.hir_id).nth(1) + cx.tcx.hir_parent_iter(expr.hir_id).nth(1) && let hir::ExprKind::Match(arg, [_], hir::MatchSource::ForLoopDesugar) = &parent_expr.kind && let hir::ExprKind::Call(path, [_]) = &arg.kind diff --git a/compiler/rustc_lint/src/unqualified_local_imports.rs b/compiler/rustc_lint/src/unqualified_local_imports.rs index b27398a950c8..50c5119285f7 100644 --- a/compiler/rustc_lint/src/unqualified_local_imports.rs +++ b/compiler/rustc_lint/src/unqualified_local_imports.rs @@ -68,7 +68,7 @@ impl<'tcx> LateLintPass<'tcx> for UnqualifiedLocalImports { return; } - let encl_item_id = cx.tcx.hir().get_parent_item(item.hir_id()); + let encl_item_id = cx.tcx.hir_get_parent_item(item.hir_id()); let encl_item = cx.tcx.hir_node_by_def_id(encl_item_id.def_id); if encl_item.fn_kind().is_some() { // `use` in a method -- don't lint, that leads to too many undesirable lints diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index a6ae3eb44f6c..40dd6aa73fd4 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -28,7 +28,7 @@ pub struct Map<'hir> { } /// An iterator that walks up the ancestor tree of a given `HirId`. -/// Constructed using `tcx.hir().parent_iter(hir_id)`. +/// Constructed using `tcx.hir_parent_iter(hir_id)`. struct ParentHirIterator<'tcx> { current_id: HirId, tcx: TyCtxt<'tcx>, @@ -74,7 +74,7 @@ impl<'tcx> Iterator for ParentHirIterator<'tcx> { } /// An iterator that walks up the ancestor tree of a given `HirId`. -/// Constructed using `tcx.hir().parent_owner_iter(hir_id)`. +/// Constructed using `tcx.hir_parent_owner_iter(hir_id)`. pub struct ParentOwnerIterator<'tcx> { current_id: HirId, tcx: TyCtxt<'tcx>, @@ -146,7 +146,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Returns `HirId` of the parent HIR node of node with this `hir_id`. /// Returns the same `hir_id` if and only if `hir_id == CRATE_HIR_ID`. /// - /// If calling repeatedly and iterating over parents, prefer [`Map::parent_iter`]. + /// If calling repeatedly and iterating over parents, prefer [`TyCtxt::hir_parent_iter`]. pub fn parent_hir_id(self, hir_id: HirId) -> HirId { let HirId { owner, local_id } = hir_id; if local_id == ItemLocalId::ZERO { @@ -242,7 +242,7 @@ impl<'tcx> TyCtxt<'tcx> { #[track_caller] pub fn hir_enclosing_body_owner(self, hir_id: HirId) -> LocalDefId { - for (_, node) in self.hir().parent_iter(hir_id) { + for (_, node) in self.hir_parent_iter(hir_id) { if let Some((def_id, _)) = node.associated_body() { return def_id; } @@ -498,33 +498,31 @@ impl<'tcx> TyCtxt<'tcx> { f(LocalModDefId::new_unchecked(module.def_id)) }) } -} -impl<'hir> Map<'hir> { /// Returns an iterator for the nodes in the ancestor tree of the `current_id` /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] - pub fn parent_id_iter(self, current_id: HirId) -> impl Iterator + 'hir { - ParentHirIterator::new(self.tcx, current_id) + pub fn hir_parent_id_iter(self, current_id: HirId) -> impl Iterator + 'tcx { + ParentHirIterator::new(self, current_id) } /// Returns an iterator for the nodes in the ancestor tree of the `current_id` /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] - pub fn parent_iter(self, current_id: HirId) -> impl Iterator)> { - self.parent_id_iter(current_id).map(move |id| (id, self.tcx.hir_node(id))) + pub fn hir_parent_iter(self, current_id: HirId) -> impl Iterator)> { + self.hir_parent_id_iter(current_id).map(move |id| (id, self.hir_node(id))) } /// Returns an iterator for the nodes in the ancestor tree of the `current_id` /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] - pub fn parent_owner_iter(self, current_id: HirId) -> ParentOwnerIterator<'hir> { - ParentOwnerIterator { current_id, tcx: self.tcx } + pub fn hir_parent_owner_iter(self, current_id: HirId) -> ParentOwnerIterator<'tcx> { + ParentOwnerIterator { current_id, tcx: self } } /// Checks if the node is left-hand side of an assignment. - pub fn is_lhs(self, id: HirId) -> bool { - match self.tcx.parent_hir_node(id) { + pub fn hir_is_lhs(self, id: HirId) -> bool { + match self.parent_hir_node(id) { Node::Expr(expr) => match expr.kind { ExprKind::Assign(lhs, _rhs, _span) => lhs.hir_id == id, _ => false, @@ -535,8 +533,8 @@ impl<'hir> Map<'hir> { /// Whether the expression pointed at by `hir_id` belongs to a `const` evaluation context. /// Used exclusively for diagnostics, to avoid suggestion function calls. - pub fn is_inside_const_context(self, hir_id: HirId) -> bool { - self.tcx.hir_body_const_context(self.tcx.hir_enclosing_body_owner(hir_id)).is_some() + pub fn hir_is_inside_const_context(self, hir_id: HirId) -> bool { + self.hir_body_const_context(self.hir_enclosing_body_owner(hir_id)).is_some() } /// Retrieves the `HirId` for `id`'s enclosing function *if* the `id` block or return is @@ -561,12 +559,11 @@ impl<'hir> Map<'hir> { /// false /// } /// ``` - pub fn get_fn_id_for_return_block(self, id: HirId) -> Option { - let enclosing_body_owner = - self.tcx.local_def_id_to_hir_id(self.tcx.hir_enclosing_body_owner(id)); + pub fn hir_get_fn_id_for_return_block(self, id: HirId) -> Option { + let enclosing_body_owner = self.local_def_id_to_hir_id(self.hir_enclosing_body_owner(id)); // Return `None` if the `id` expression is not the returned value of the enclosing body - let mut iter = [id].into_iter().chain(self.parent_id_iter(id)).peekable(); + let mut iter = [id].into_iter().chain(self.hir_parent_id_iter(id)).peekable(); while let Some(cur_id) = iter.next() { if enclosing_body_owner == cur_id { break; @@ -574,14 +571,16 @@ impl<'hir> Map<'hir> { // A return statement is always the value returned from the enclosing body regardless of // what the parent expressions are. - if let Node::Expr(Expr { kind: ExprKind::Ret(_), .. }) = self.tcx.hir_node(cur_id) { + if let Node::Expr(Expr { kind: ExprKind::Ret(_), .. }) = self.hir_node(cur_id) { break; } - // If the current expression's value doesnt get used as the parent expressions value then return `None` + // If the current expression's value doesnt get used as the parent expressions value + // then return `None` if let Some(&parent_id) = iter.peek() { - match self.tcx.hir_node(parent_id) { - // The current node is not the tail expression of the block expression parent expr. + match self.hir_node(parent_id) { + // The current node is not the tail expression of the block expression parent + // expr. Node::Block(Block { expr: Some(e), .. }) if cur_id != e.hir_id => return None, Node::Block(Block { expr: Some(e), .. }) if matches!(e.kind, ExprKind::If(_, _, None)) => @@ -589,7 +588,8 @@ impl<'hir> Map<'hir> { return None; } - // The current expression's value does not pass up through these parent expressions + // The current expression's value does not pass up through these parent + // expressions. Node::Block(Block { expr: None, .. }) | Node::Expr(Expr { kind: ExprKind::Loop(..), .. }) | Node::LetStmt(..) => return None, @@ -606,11 +606,11 @@ impl<'hir> Map<'hir> { /// parent item is in this map. The "parent item" is the closest parent node /// in the HIR which is recorded by the map and is an item, either an item /// in a module, trait, or impl. - pub fn get_parent_item(self, hir_id: HirId) -> OwnerId { + pub fn hir_get_parent_item(self, hir_id: HirId) -> OwnerId { if hir_id.local_id != ItemLocalId::ZERO { // If this is a child of a HIR owner, return the owner. hir_id.owner - } else if let Some((def_id, _node)) = self.parent_owner_iter(hir_id).next() { + } else if let Some((def_id, _node)) = self.hir_parent_owner_iter(hir_id).next() { def_id } else { CRATE_OWNER_ID @@ -622,8 +622,8 @@ impl<'hir> Map<'hir> { /// /// Used by error reporting when there's a type error in an if or match arm caused by the /// expression needing to be unit. - pub fn get_if_cause(self, hir_id: HirId) -> Option<&'hir Expr<'hir>> { - for (_, node) in self.parent_iter(hir_id) { + pub fn hir_get_if_cause(self, hir_id: HirId) -> Option<&'tcx Expr<'tcx>> { + for (_, node) in self.hir_parent_iter(hir_id) { match node { Node::Item(_) | Node::ForeignItem(_) @@ -640,8 +640,8 @@ impl<'hir> Map<'hir> { } /// Returns the nearest enclosing scope. A scope is roughly an item or block. - pub fn get_enclosing_scope(self, hir_id: HirId) -> Option { - for (hir_id, node) in self.parent_iter(hir_id) { + pub fn hir_get_enclosing_scope(self, hir_id: HirId) -> Option { + for (hir_id, node) in self.hir_parent_iter(hir_id) { if let Node::Item(Item { kind: ItemKind::Fn { .. } @@ -667,18 +667,20 @@ impl<'hir> Map<'hir> { } /// Returns the defining scope for an opaque type definition. - pub fn get_defining_scope(self, id: HirId) -> HirId { + pub fn hir_get_defining_scope(self, id: HirId) -> HirId { let mut scope = id; loop { - scope = self.get_enclosing_scope(scope).unwrap_or(CRATE_HIR_ID); - if scope == CRATE_HIR_ID || !matches!(self.tcx.hir_node(scope), Node::Block(_)) { + scope = self.hir_get_enclosing_scope(scope).unwrap_or(CRATE_HIR_ID); + if scope == CRATE_HIR_ID || !matches!(self.hir_node(scope), Node::Block(_)) { return scope; } } } +} +impl<'hir> Map<'hir> { pub fn get_foreign_abi(self, hir_id: HirId) -> ExternAbi { - let parent = self.get_parent_item(hir_id); + let parent = self.tcx.hir_get_parent_item(hir_id); if let OwnerNode::Item(Item { kind: ItemKind::ForeignMod { abi, .. }, .. }) = self.tcx.hir_owner_node(parent) { diff --git a/compiler/rustc_middle/src/lint.rs b/compiler/rustc_middle/src/lint.rs index ab711aca573e..88bf17070b9c 100644 --- a/compiler/rustc_middle/src/lint.rs +++ b/compiler/rustc_middle/src/lint.rs @@ -131,7 +131,7 @@ impl ShallowLintLevelMap { let mut owner = start.owner; let mut specs = &self.specs; - for parent in tcx.hir().parent_id_iter(start) { + for parent in tcx.hir_parent_id_iter(start) { if parent.owner != owner { owner = parent.owner; specs = &tcx.shallow_lint_levels_on(owner).specs; diff --git a/compiler/rustc_middle/src/middle/stability.rs b/compiler/rustc_middle/src/middle/stability.rs index 93bbf6d7fa4f..2260cad41b97 100644 --- a/compiler/rustc_middle/src/middle/stability.rs +++ b/compiler/rustc_middle/src/middle/stability.rs @@ -373,7 +373,7 @@ impl<'tcx> TyCtxt<'tcx> { // Deprecated attributes apply in-crate and cross-crate. if let Some(id) = id { if let Some(depr_entry) = self.lookup_deprecation_entry(def_id) { - let parent_def_id = self.hir().get_parent_item(id); + let parent_def_id = self.hir_get_parent_item(id); let skip = self .lookup_deprecation_entry(parent_def_id.to_def_id()) .is_some_and(|parent_depr| parent_depr.same_origin(&depr_entry)); diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 35893ad953d1..c0bd0d2b2b0b 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -3019,7 +3019,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Find the crate root and the appropriate span where `use` and outer attributes can be /// inserted at. pub fn crate_level_attribute_injection_span(self, hir_id: HirId) -> Option { - for (_hir_id, node) in self.hir().parent_iter(hir_id) { + for (_hir_id, node) in self.hir_parent_iter(hir_id) { if let hir::Node::Crate(m) = node { return Some(m.spans.inject_use_span.shrink_to_lo()); } diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index 84f58f1968db..d65c2097d226 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -751,7 +751,7 @@ impl UnsafeOpKind { span: Span, suggest_unsafe_block: bool, ) { - let parent_id = tcx.hir().get_parent_item(hir_id); + let parent_id = tcx.hir_get_parent_item(hir_id); let parent_owner = tcx.hir_owner_node(parent_id); let should_suggest = parent_owner.fn_sig().is_some_and(|sig| { // Do not suggest for safe target_feature functions @@ -921,7 +921,7 @@ impl UnsafeOpKind { hir_context: HirId, unsafe_op_in_unsafe_fn_allowed: bool, ) { - let note_non_inherited = tcx.hir().parent_iter(hir_context).find(|(id, node)| { + let note_non_inherited = tcx.hir_parent_iter(hir_context).find(|(id, node)| { if let hir::Node::Expr(block) = node && let hir::ExprKind::Block(block, _) = block.kind && let hir::BlockCheckMode::UnsafeBlock(_) = block.rules diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs index 6dbb460d8b15..18305db28c28 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs @@ -1041,7 +1041,7 @@ fn find_fallback_pattern_typo<'tcx>( let mut imported = vec![]; let mut imported_spans = vec![]; let (infcx, param_env) = cx.tcx.infer_ctxt().build_with_typing_env(cx.typing_env); - let parent = cx.tcx.hir().get_parent_item(hir_id); + let parent = cx.tcx.hir_get_parent_item(hir_id); for item in cx.tcx.hir_crate_items(()).free_items() { if let DefKind::Use = cx.tcx.def_kind(item.owner_id) { @@ -1137,7 +1137,7 @@ fn find_fallback_pattern_typo<'tcx>( } else { // Look for local bindings for people that might have gotten confused with how // `let` and `const` works. - for (_, node) in cx.tcx.hir().parent_iter(hir_id) { + for (_, node) in cx.tcx.hir_parent_iter(hir_id) { match node { hir::Node::Stmt(hir::Stmt { kind: hir::StmtKind::Let(let_stmt), .. }) => { if let hir::PatKind::Binding(_, _, binding_name, _) = let_stmt.pat.kind { diff --git a/compiler/rustc_passes/src/check_attr.rs b/compiler/rustc_passes/src/check_attr.rs index 74c48a45f185..9a4db612cfed 100644 --- a/compiler/rustc_passes/src/check_attr.rs +++ b/compiler/rustc_passes/src/check_attr.rs @@ -48,7 +48,7 @@ fn target_from_impl_item<'tcx>(tcx: TyCtxt<'tcx>, impl_item: &hir::ImplItem<'_>) match impl_item.kind { hir::ImplItemKind::Const(..) => Target::AssocConst, hir::ImplItemKind::Fn(..) => { - let parent_def_id = tcx.hir().get_parent_item(impl_item.hir_id()).def_id; + let parent_def_id = tcx.hir_get_parent_item(impl_item.hir_id()).def_id; let containing_item = tcx.hir().expect_item(parent_def_id); let containing_impl_is_for_trait = match &containing_item.kind { hir::ItemKind::Impl(impl_) => impl_.of_trait.is_some(), @@ -868,7 +868,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { let span = meta.span(); if let Some(location) = match target { Target::AssocTy => { - let parent_def_id = self.tcx.hir().get_parent_item(hir_id).def_id; + let parent_def_id = self.tcx.hir_get_parent_item(hir_id).def_id; let containing_item = self.tcx.hir().expect_item(parent_def_id); if Target::from_item(containing_item) == Target::Impl { Some("type alias in implementation block") @@ -877,7 +877,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { } } Target::AssocConst => { - let parent_def_id = self.tcx.hir().get_parent_item(hir_id).def_id; + let parent_def_id = self.tcx.hir_get_parent_item(hir_id).def_id; let containing_item = self.tcx.hir().expect_item(parent_def_id); // We can't link to trait impl's consts. let err = "associated constant in trait implementation block"; @@ -1161,7 +1161,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { // insert a bang between `#` and `[...` let bang_span = attr.span.lo() + BytePos(1); let sugg = (attr.style == AttrStyle::Outer - && self.tcx.hir().get_parent_item(hir_id) == CRATE_OWNER_ID) + && self.tcx.hir_get_parent_item(hir_id) == CRATE_OWNER_ID) .then_some(errors::AttrCrateLevelOnlySugg { attr: attr.span.with_lo(bang_span).with_hi(bang_span), }); @@ -1449,7 +1449,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { // `#[must_use]` can be applied to a trait method definition with a default body if let Target::Method(MethodKind::Trait { body: true }) = target - && let parent_def_id = self.tcx.hir().get_parent_item(hir_id).def_id + && let parent_def_id = self.tcx.hir_get_parent_item(hir_id).def_id && let containing_item = self.tcx.hir().expect_item(parent_def_id) && let hir::ItemKind::Trait(..) = containing_item.kind { @@ -2580,7 +2580,7 @@ impl<'tcx> CheckAttrVisitor<'tcx> { .. }) ); - let parent_did = self.tcx.hir().get_parent_item(hir_id).to_def_id(); + let parent_did = self.tcx.hir_get_parent_item(hir_id).to_def_id(); let parent_span = self.tcx.def_span(parent_did); let parent_force_inline_attr = self.tcx.get_attr(parent_did, sym::rustc_force_inline); diff --git a/compiler/rustc_passes/src/liveness.rs b/compiler/rustc_passes/src/liveness.rs index a7bca67e4e4a..24dc018c6612 100644 --- a/compiler/rustc_passes/src/liveness.rs +++ b/compiler/rustc_passes/src/liveness.rs @@ -1623,7 +1623,7 @@ impl<'tcx> Liveness<'_, 'tcx> { && let hir::Node::Pat(pat) = self.ir.tcx.hir_node(var_hid) && let hir::Node::Param(hir::Param { ty_span, .. }) = self.ir.tcx.parent_hir_node(pat.hir_id) - && let item_id = self.ir.tcx.hir().get_parent_item(pat.hir_id) + && let item_id = self.ir.tcx.hir_get_parent_item(pat.hir_id) && let item = self.ir.tcx.hir_owner_node(item_id) && let Some(fn_decl) = item.fn_decl() && let hir::PatKind::Binding(hir::BindingMode::MUT, _hir_id, ident, _) = pat.kind diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index a65859466561..4124e8a4dd1f 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -645,7 +645,7 @@ impl<'tcx> Visitor<'tcx> for MissingStabilityAnnotations<'tcx> { } fn visit_impl_item(&mut self, ii: &'tcx hir::ImplItem<'tcx>) { - let impl_def_id = self.tcx.hir().get_parent_item(ii.hir_id()); + let impl_def_id = self.tcx.hir_get_parent_item(ii.hir_id()); if self.tcx.impl_trait_ref(impl_def_id).is_none() { self.check_missing_stability(ii.owner_id.def_id, ii.span); self.check_missing_const_stability(ii.owner_id.def_id, ii.span); diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index 5b8d48e3ca9e..3f15a79271d5 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -146,7 +146,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { if let ObligationCauseCode::ReturnValue(hir_id) | ObligationCauseCode::BlockTailExpression(hir_id, ..) = cause.code() { - let parent_id = tcx.hir().get_parent_item(*hir_id); + let parent_id = tcx.hir_get_parent_item(*hir_id); if let Some(fn_decl) = tcx.hir_fn_decl_by_hir_id(parent_id.into()) { let mut span: MultiSpan = fn_decl.output.span().into(); let mut spans = Vec::new(); @@ -472,7 +472,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { ) -> Option<(Ident, &'tcx hir::Ty<'tcx>)> { match tcx.hir_get_if_local(def_id)? { Node::ImplItem(impl_item) => { - let impl_did = tcx.hir().get_parent_item(impl_item.hir_id()); + let impl_did = tcx.hir_get_parent_item(impl_item.hir_id()); if let hir::OwnerNode::Item(Item { kind: ItemKind::Impl(hir::Impl { self_ty, .. }), .. @@ -484,7 +484,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { } } Node::TraitItem(trait_item) => { - let trait_id = tcx.hir().get_parent_item(trait_item.hir_id()); + let trait_id = tcx.hir_get_parent_item(trait_item.hir_id()); debug_assert_eq!(tcx.def_kind(trait_id.def_id), hir::def::DefKind::Trait); // The method being called is defined in the `trait`, but the `'static` // obligation comes from the `impl`. Find that `impl` so that we can point diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs index 37032b539018..36726cc6cae0 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/note_and_explain.rs @@ -586,7 +586,7 @@ impl Trait for X { hir::Node::TraitItem(item) => item.hir_id(), _ => return false, }; - let parent = tcx.hir().get_parent_item(hir_id).def_id; + let parent = tcx.hir_get_parent_item(hir_id).def_id; self.suggest_constraint(diag, msg, parent.into(), proj_ty, ty) } @@ -820,7 +820,7 @@ fn foo(&self) -> Self::T { String::new() } // When `body_owner` is an `impl` or `trait` item, look in its associated types for // `expected` and point at it. let hir_id = tcx.local_def_id_to_hir_id(def_id); - let parent_id = tcx.hir().get_parent_item(hir_id); + let parent_id = tcx.hir_get_parent_item(hir_id); let item = tcx.hir_node_by_def_id(parent_id.def_id); debug!("expected_projection parent item {:?}", item); diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs index 22d219cd64d2..4d87a93be0ca 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/mod.rs @@ -587,7 +587,7 @@ fn attempt_dyn_to_impl_suggestion(tcx: TyCtxt<'_>, hir_id: Option, e // `type Alias = Box;` to // `type Alias = Box;` let Some((_id, first_non_type_parent_node)) = - tcx.hir().parent_iter(hir_id).find(|(_id, node)| !matches!(node, hir::Node::Ty(_))) + tcx.hir_parent_iter(hir_id).find(|(_id, node)| !matches!(node, hir::Node::Ty(_))) else { return; }; diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index ee0ab0dfbb82..6eeb47a21f8d 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -1552,7 +1552,6 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { obligation: &PredicateObligation<'tcx>, err: &mut Diag<'_>, ) { - let hir = self.tcx.hir(); if let ObligationCauseCode::AwaitableExpr(hir_id) = obligation.cause.code().peel_derives() && let hir::Node::Expr(expr) = self.tcx.hir_node(*hir_id) { @@ -1562,7 +1561,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { // it is from the local crate. // use nth(1) to skip one layer of desugaring from `IntoIter::into_iter` - if let Some((_, hir::Node::Expr(await_expr))) = hir.parent_iter(*hir_id).nth(1) + if let Some((_, hir::Node::Expr(await_expr))) = self.tcx.hir_parent_iter(*hir_id).nth(1) && let Some(expr_span) = expr.span.find_ancestor_inside_same_ctxt(await_expr.span) { let removal_span = self @@ -4118,8 +4117,8 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { let ty::Param(..) = ty.kind() else { continue; }; - let hir = tcx.hir(); - let node = tcx.hir_node_by_def_id(hir.get_parent_item(expr.hir_id).def_id); + let node = + tcx.hir_node_by_def_id(tcx.hir_get_parent_item(expr.hir_id).def_id); let pred = ty::Binder::dummy(ty::TraitPredicate { trait_ref: ty::TraitRef::new( diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index ac4399750f59..e8d30d3ee799 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -1880,8 +1880,7 @@ pub fn impl_trait_overcapture_suggestion<'tcx>( let opaque_hir_id = tcx.local_def_id_to_hir_id(opaque_def_id); // FIXME: This is a bit too conservative, since it ignores parens already written in AST. let (lparen, rparen) = match tcx - .hir() - .parent_iter(opaque_hir_id) + .hir_parent_iter(opaque_hir_id) .nth(1) .expect("expected ty to have a parent always") .1 diff --git a/compiler/rustc_ty_utils/src/assoc.rs b/compiler/rustc_ty_utils/src/assoc.rs index f71b924b177a..c8034f4e7b9f 100644 --- a/compiler/rustc_ty_utils/src/assoc.rs +++ b/compiler/rustc_ty_utils/src/assoc.rs @@ -95,7 +95,7 @@ fn impl_item_implementor_ids(tcx: TyCtxt<'_>, impl_id: DefId) -> DefIdMap fn associated_item(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::AssocItem { let id = tcx.local_def_id_to_hir_id(def_id); - let parent_def_id = tcx.hir().get_parent_item(id); + let parent_def_id = tcx.hir_get_parent_item(id); let parent_item = tcx.hir().expect_item(parent_def_id.def_id); match parent_item.kind { hir::ItemKind::Impl(impl_) => { diff --git a/compiler/rustc_ty_utils/src/opaque_types.rs b/compiler/rustc_ty_utils/src/opaque_types.rs index 7ce72c76e5c0..98881905bcf8 100644 --- a/compiler/rustc_ty_utils/src/opaque_types.rs +++ b/compiler/rustc_ty_utils/src/opaque_types.rs @@ -98,10 +98,10 @@ impl<'tcx> OpaqueTypeCollector<'tcx> { let opaque_hir_id = self.tcx.local_def_id_to_hir_id(opaque_def_id); // Named opaque types can be defined by any siblings or children of siblings. - let scope = self.tcx.hir().get_defining_scope(opaque_hir_id); + let scope = self.tcx.hir_get_defining_scope(opaque_hir_id); // We walk up the node tree until we hit the root or the scope of the opaque type. while hir_id != scope && hir_id != CRATE_HIR_ID { - hir_id = self.tcx.hir().get_parent_item(hir_id).into(); + hir_id = self.tcx.hir_get_parent_item(hir_id).into(); } // Syntactically, we are allowed to define the concrete type if: hir_id == scope diff --git a/src/librustdoc/scrape_examples.rs b/src/librustdoc/scrape_examples.rs index a36dcb0d30e5..44551d75903d 100644 --- a/src/librustdoc/scrape_examples.rs +++ b/src/librustdoc/scrape_examples.rs @@ -177,7 +177,7 @@ where // If the enclosing item has a span coming from a proc macro, then we also don't want to // include the example. let enclosing_item_span = - tcx.hir().span_with_body(tcx.hir().get_parent_item(ex.hir_id).into()); + tcx.hir().span_with_body(tcx.hir_get_parent_item(ex.hir_id).into()); if enclosing_item_span.from_expansion() { trace!("Rejecting expr ({call_span:?}) from macro item: {enclosing_item_span:?}"); return; diff --git a/src/tools/clippy/clippy_lints/src/assigning_clones.rs b/src/tools/clippy/clippy_lints/src/assigning_clones.rs index c01155ca86e0..348495f97a27 100644 --- a/src/tools/clippy/clippy_lints/src/assigning_clones.rs +++ b/src/tools/clippy/clippy_lints/src/assigning_clones.rs @@ -107,7 +107,7 @@ impl<'tcx> LateLintPass<'tcx> for AssigningClones { && !cx.tcx.is_builtin_derived(resolved_impl) // Don't suggest calling a function we're implementing. && resolved_impl.as_local().is_none_or(|block_id| { - cx.tcx.hir().parent_owner_iter(e.hir_id).all(|(id, _)| id.def_id != block_id) + cx.tcx.hir_parent_owner_iter(e.hir_id).all(|(id, _)| id.def_id != block_id) }) && let resolved_assoc_items = cx.tcx.associated_items(resolved_impl) // Only suggest if `clone_from`/`clone_into` is explicitly implemented diff --git a/src/tools/clippy/clippy_lints/src/doc/missing_headers.rs b/src/tools/clippy/clippy_lints/src/doc/missing_headers.rs index d1ffbb6ffe25..e8638595c4b2 100644 --- a/src/tools/clippy/clippy_lints/src/doc/missing_headers.rs +++ b/src/tools/clippy/clippy_lints/src/doc/missing_headers.rs @@ -24,8 +24,7 @@ pub fn check( if !check_private_items && cx .tcx - .hir() - .parent_iter(owner_id.into()) + .hir_parent_iter(owner_id.into()) .any(|(id, _node)| is_doc_hidden(cx.tcx.hir().attrs(id))) { return; diff --git a/src/tools/clippy/clippy_lints/src/doc/mod.rs b/src/tools/clippy/clippy_lints/src/doc/mod.rs index 93c2b7a2d182..713d62a8801d 100644 --- a/src/tools/clippy/clippy_lints/src/doc/mod.rs +++ b/src/tools/clippy/clippy_lints/src/doc/mod.rs @@ -1057,7 +1057,7 @@ impl<'tcx> Visitor<'tcx> for FindPanicUnwrap<'_, 'tcx> { "assert" | "assert_eq" | "assert_ne" ) { - self.is_const = self.cx.tcx.hir().is_inside_const_context(expr.hir_id); + self.is_const = self.cx.tcx.hir_is_inside_const_context(expr.hir_id); self.panic_span = Some(macro_call.span); } } diff --git a/src/tools/clippy/clippy_lints/src/escape.rs b/src/tools/clippy/clippy_lints/src/escape.rs index c55d4387d696..0c06c9117d73 100644 --- a/src/tools/clippy/clippy_lints/src/escape.rs +++ b/src/tools/clippy/clippy_lints/src/escape.rs @@ -80,8 +80,7 @@ impl<'tcx> LateLintPass<'tcx> for BoxedLocal { let parent_id = cx .tcx - .hir() - .get_parent_item(cx.tcx.local_def_id_to_hir_id(fn_def_id)) + .hir_get_parent_item(cx.tcx.local_def_id_to_hir_id(fn_def_id)) .def_id; let mut trait_self_ty = None; diff --git a/src/tools/clippy/clippy_lints/src/exit.rs b/src/tools/clippy/clippy_lints/src/exit.rs index e6ddcd107d9d..cc8e4d7d9e28 100644 --- a/src/tools/clippy/clippy_lints/src/exit.rs +++ b/src/tools/clippy/clippy_lints/src/exit.rs @@ -47,7 +47,7 @@ impl<'tcx> LateLintPass<'tcx> for Exit { && let ExprKind::Path(ref path) = path_expr.kind && let Some(def_id) = cx.qpath_res(path, path_expr.hir_id).opt_def_id() && cx.tcx.is_diagnostic_item(sym::process_exit, def_id) - && let parent = cx.tcx.hir().get_parent_item(e.hir_id) + && let parent = cx.tcx.hir_get_parent_item(e.hir_id) && let OwnerNode::Item(Item{kind: ItemKind::Fn{ .. }, ..}) = cx.tcx.hir_owner_node(parent) // If the next item up is a function we check if it is an entry point // and only then emit a linter warning diff --git a/src/tools/clippy/clippy_lints/src/indexing_slicing.rs b/src/tools/clippy/clippy_lints/src/indexing_slicing.rs index f666ed0a440b..33431385c7de 100644 --- a/src/tools/clippy/clippy_lints/src/indexing_slicing.rs +++ b/src/tools/clippy/clippy_lints/src/indexing_slicing.rs @@ -112,7 +112,7 @@ impl IndexingSlicing { impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { if let ExprKind::Index(array, index, _) = &expr.kind - && (!self.suppress_restriction_lint_in_const || !cx.tcx.hir().is_inside_const_context(expr.hir_id)) + && (!self.suppress_restriction_lint_in_const || !cx.tcx.hir_is_inside_const_context(expr.hir_id)) && let expr_ty = cx.typeck_results().expr_ty(array) && let mut deref = deref_chain(cx, expr_ty) && deref.any(|l| { @@ -181,7 +181,7 @@ impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { span_lint_and_then(cx, INDEXING_SLICING, expr.span, "slicing may panic", |diag| { diag.help(help_msg); - if cx.tcx.hir().is_inside_const_context(expr.hir_id) { + if cx.tcx.hir_is_inside_const_context(expr.hir_id) { diag.note(note); } }); @@ -223,7 +223,7 @@ impl<'tcx> LateLintPass<'tcx> for IndexingSlicing { span_lint_and_then(cx, INDEXING_SLICING, expr.span, "indexing may panic", |diag| { diag.help("consider using `.get(n)` or `.get_mut(n)` instead"); - if cx.tcx.hir().is_inside_const_context(expr.hir_id) { + if cx.tcx.hir_is_inside_const_context(expr.hir_id) { diag.note(note); } }); diff --git a/src/tools/clippy/clippy_lints/src/large_stack_arrays.rs b/src/tools/clippy/clippy_lints/src/large_stack_arrays.rs index c68499ce9f78..620e27fa67c6 100644 --- a/src/tools/clippy/clippy_lints/src/large_stack_arrays.rs +++ b/src/tools/clippy/clippy_lints/src/large_stack_arrays.rs @@ -83,7 +83,7 @@ impl<'tcx> LateLintPass<'tcx> for LargeStackArrays { && let ty::Array(element_type, cst) = cx.typeck_results().expr_ty(expr).kind() && let Some(element_count) = cst.try_to_target_usize(cx.tcx) && let Ok(element_size) = cx.layout_of(*element_type).map(|l| l.size.bytes()) - && !cx.tcx.hir().parent_iter(expr.hir_id).any(|(_, node)| { + && !cx.tcx.hir_parent_iter(expr.hir_id).any(|(_, node)| { matches!( node, Node::Item(Item { diff --git a/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs b/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs index 4d206850c998..797ff1f39866 100644 --- a/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs +++ b/src/tools/clippy/clippy_lints/src/loops/infinite_loop.rs @@ -61,7 +61,7 @@ pub(super) fn check<'tcx>( } fn get_parent_fn_ret_ty<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>) -> Option> { - for (_, parent_node) in cx.tcx.hir().parent_iter(expr.hir_id) { + for (_, parent_node) in cx.tcx.hir_parent_iter(expr.hir_id) { match parent_node { // Skip `Coroutine` closures, these are the body of `async fn`, not async closures. // This is because we still need to backtrack one parent node to get the `OpaqueDef` ty. diff --git a/src/tools/clippy/clippy_lints/src/loops/manual_find.rs b/src/tools/clippy/clippy_lints/src/loops/manual_find.rs index 1721f569541b..aa8a2934f89b 100644 --- a/src/tools/clippy/clippy_lints/src/loops/manual_find.rs +++ b/src/tools/clippy/clippy_lints/src/loops/manual_find.rs @@ -134,7 +134,7 @@ fn last_stmt_and_ret<'tcx>( } None } - let mut parent_iter = cx.tcx.hir().parent_iter(expr.hir_id); + let mut parent_iter = cx.tcx.hir_parent_iter(expr.hir_id); if let Some((node_hir, Node::Stmt(..))) = parent_iter.next() // This should be the loop // This should be the function body diff --git a/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs b/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs index e98c3c9698ba..0f62183eb33d 100644 --- a/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs +++ b/src/tools/clippy/clippy_lints/src/loops/needless_range_loop.rs @@ -56,7 +56,7 @@ pub(super) fn check<'tcx>( // ensure that the indexed variable was declared before the loop, see #601 if let Some(indexed_extent) = indexed_extent { - let parent_def_id = cx.tcx.hir().get_parent_item(expr.hir_id); + let parent_def_id = cx.tcx.hir_get_parent_item(expr.hir_id); let region_scope_tree = cx.tcx.region_scope_tree(parent_def_id); let pat_extent = region_scope_tree.var_scope(pat.hir_id.local_id).unwrap(); if region_scope_tree.is_subscope_of(indexed_extent, pat_extent) { @@ -256,7 +256,7 @@ impl<'tcx> VarVisitor<'_, 'tcx> { let res = self.cx.qpath_res(seqpath, seqexpr.hir_id); match res { Res::Local(hir_id) => { - let parent_def_id = self.cx.tcx.hir().get_parent_item(expr.hir_id); + let parent_def_id = self.cx.tcx.hir_get_parent_item(expr.hir_id); let extent = self .cx .tcx diff --git a/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs b/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs index 393399660131..722ea7042dd7 100644 --- a/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs +++ b/src/tools/clippy/clippy_lints/src/matches/redundant_pattern_match.rs @@ -199,7 +199,7 @@ fn find_method_sugg_for_if_let<'tcx>( // type needs to be considered, not just the inner type of the branch being matched on. // Note the last expression in a block is dropped after all local bindings. let check_ty = if has_else - || (keyword == "if" && matches!(cx.tcx.hir().parent_iter(expr.hir_id).next(), Some((_, Node::Block(..))))) + || (keyword == "if" && matches!(cx.tcx.hir_parent_iter(expr.hir_id).next(), Some((_, Node::Block(..))))) { op_ty } else { diff --git a/src/tools/clippy/clippy_lints/src/methods/is_empty.rs b/src/tools/clippy/clippy_lints/src/methods/is_empty.rs index 92c81b3c49d8..1c64f78678ae 100644 --- a/src/tools/clippy/clippy_lints/src/methods/is_empty.rs +++ b/src/tools/clippy/clippy_lints/src/methods/is_empty.rs @@ -40,8 +40,7 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &'_ Expr<'_>, receiver: &Expr<'_ fn is_under_cfg(cx: &LateContext<'_>, id: HirId) -> bool { cx.tcx - .hir() - .parent_id_iter(id) + .hir_parent_id_iter(id) .any(|id| cx.tcx.hir().attrs(id).iter().any(|attr| attr.has_name(sym::cfg))) } diff --git a/src/tools/clippy/clippy_lints/src/methods/iter_nth_zero.rs b/src/tools/clippy/clippy_lints/src/methods/iter_nth_zero.rs index 9ff6eaa34871..4bdf589f4876 100644 --- a/src/tools/clippy/clippy_lints/src/methods/iter_nth_zero.rs +++ b/src/tools/clippy/clippy_lints/src/methods/iter_nth_zero.rs @@ -11,7 +11,7 @@ use rustc_span::sym; use super::ITER_NTH_ZERO; pub(super) fn check(cx: &LateContext<'_>, expr: &hir::Expr<'_>, recv: &hir::Expr<'_>, arg: &hir::Expr<'_>) { - if let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir().get_parent_item(expr.hir_id)) + if let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir_get_parent_item(expr.hir_id)) && let def_id = item.owner_id.to_def_id() && is_trait_method(cx, expr, sym::Iterator) && let Some(Constant::Int(0)) = ConstEvalCtxt::new(cx).eval(arg) diff --git a/src/tools/clippy/clippy_lints/src/methods/manual_c_str_literals.rs b/src/tools/clippy/clippy_lints/src/methods/manual_c_str_literals.rs index 7d5ebdedd0c3..e1ebca0b09df 100644 --- a/src/tools/clippy/clippy_lints/src/methods/manual_c_str_literals.rs +++ b/src/tools/clippy/clippy_lints/src/methods/manual_c_str_literals.rs @@ -187,7 +187,7 @@ fn peel_ptr_cast<'tcx>(e: &'tcx Expr<'tcx>) -> &'tcx Expr<'tcx> { /// ^ given this `x` expression, returns the `foo(...)` expression fn peel_ptr_cast_ancestors<'tcx>(cx: &LateContext<'tcx>, e: &'tcx Expr<'tcx>) -> &'tcx Expr<'tcx> { let mut prev = e; - for (_, node) in cx.tcx.hir().parent_iter(e.hir_id) { + for (_, node) in cx.tcx.hir_parent_iter(e.hir_id) { if let Node::Expr(e) = node && get_cast_target(e).is_some() { diff --git a/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs b/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs index de37df2394d3..09ccb386a20b 100644 --- a/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs +++ b/src/tools/clippy/clippy_lints/src/methods/manual_inspect.rs @@ -123,7 +123,7 @@ pub(crate) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, arg: &Expr<'_>, name: }; let mut prev_expr = e; - for (_, parent) in cx.tcx.hir().parent_iter(e.hir_id) { + for (_, parent) in cx.tcx.hir_parent_iter(e.hir_id) { if let Node::Expr(e) = parent { match e.kind { ExprKind::Field(_, name) diff --git a/src/tools/clippy/clippy_lints/src/methods/mod.rs b/src/tools/clippy/clippy_lints/src/methods/mod.rs index ccc5cd4fa417..b58e8ba32e78 100644 --- a/src/tools/clippy/clippy_lints/src/methods/mod.rs +++ b/src/tools/clippy/clippy_lints/src/methods/mod.rs @@ -4671,7 +4671,7 @@ impl<'tcx> LateLintPass<'tcx> for Methods { return; } let name = impl_item.ident.name.as_str(); - let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()).def_id; + let parent = cx.tcx.hir_get_parent_item(impl_item.hir_id()).def_id; let item = cx.tcx.hir().expect_item(parent); let self_ty = cx.tcx.type_of(item.owner_id).instantiate_identity(); diff --git a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs index f5f404070cab..69f933fee68f 100644 --- a/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs +++ b/src/tools/clippy/clippy_lints/src/methods/or_fun_call.rs @@ -92,7 +92,7 @@ pub(super) fn check<'tcx>( let in_sugg_method_implementation = { matches!( suggested_method_def_id.as_local(), - Some(local_def_id) if local_def_id == cx.tcx.hir().get_parent_item(receiver.hir_id).def_id + Some(local_def_id) if local_def_id == cx.tcx.hir_get_parent_item(receiver.hir_id).def_id ) }; if in_sugg_method_implementation { diff --git a/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs b/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs index 8a99974394c3..8389c2e3f982 100644 --- a/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs +++ b/src/tools/clippy/clippy_lints/src/methods/str_splitn.rs @@ -35,7 +35,7 @@ pub(super) fn check( }; let manual = count == 2 && msrv.meets(msrvs::STR_SPLIT_ONCE); - match parse_iter_usage(cx, expr.span.ctxt(), cx.tcx.hir().parent_iter(expr.hir_id)) { + match parse_iter_usage(cx, expr.span.ctxt(), cx.tcx.hir_parent_iter(expr.hir_id)) { Some(usage) if needless(usage.kind) => lint_needless(cx, method_name, expr, self_arg, pat_arg), Some(usage) if manual => check_manual_split_once(cx, method_name, expr, self_arg, pat_arg, &usage), None if manual => { @@ -127,7 +127,7 @@ fn check_manual_split_once_indirect( pat_arg: &Expr<'_>, ) -> Option<()> { let ctxt = expr.span.ctxt(); - let mut parents = cx.tcx.hir().parent_iter(expr.hir_id); + let mut parents = cx.tcx.hir_parent_iter(expr.hir_id); if let (_, Node::LetStmt(local)) = parents.next()? && let PatKind::Binding(BindingMode::MUT, iter_binding_id, _, None) = local.pat.kind && let (iter_stmt_id, Node::Stmt(_)) = parents.next()? @@ -220,7 +220,7 @@ fn indirect_usage<'tcx>( ControlFlow::Continue(Descend::from(path_to_binding.is_none())) }); - let mut parents = cx.tcx.hir().parent_iter(path_to_binding?.hir_id); + let mut parents = cx.tcx.hir_parent_iter(path_to_binding?.hir_id); let iter_usage = parse_iter_usage(cx, ctxt, &mut parents)?; let (parent_id, _) = parents.find(|(_, node)| { diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs index e80d99dca56d..ea134c057053 100644 --- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs +++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_to_owned.rs @@ -494,7 +494,7 @@ fn get_input_traits_and_projections<'tcx>( #[expect(clippy::too_many_lines)] fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty<'a>) -> bool { - for (_, node) in cx.tcx.hir().parent_iter(expr.hir_id) { + for (_, node) in cx.tcx.hir_parent_iter(expr.hir_id) { match node { Node::Stmt(_) => return true, Node::Block(..) => {}, diff --git a/src/tools/clippy/clippy_lints/src/min_ident_chars.rs b/src/tools/clippy/clippy_lints/src/min_ident_chars.rs index 4119b1d1051c..e5801124db48 100644 --- a/src/tools/clippy/clippy_lints/src/min_ident_chars.rs +++ b/src/tools/clippy/clippy_lints/src/min_ident_chars.rs @@ -121,9 +121,9 @@ impl Visitor<'_> for IdentVisitor<'_, '_> { // Check whether the node is part of a `use` statement. We don't want to emit a warning if the user // has no control over the type. let usenode = opt_as_use_node(node).or_else(|| { - cx.tcx - .hir() - .parent_iter(hir_id) + cx + .tcx + .hir_parent_iter(hir_id) .find_map(|(_, node)| opt_as_use_node(node)) }); diff --git a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs index ba4af134ccd0..8d751c2c0acb 100644 --- a/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs +++ b/src/tools/clippy/clippy_lints/src/missing_const_for_fn.rs @@ -143,7 +143,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingConstForFn { // Const fns are not allowed as methods in a trait. { - let parent = cx.tcx.hir().get_parent_item(hir_id).def_id; + let parent = cx.tcx.hir_get_parent_item(hir_id).def_id; if parent != CRATE_DEF_ID { if let hir::Node::Item(item) = cx.tcx.hir_node_by_def_id(parent) { if let hir::ItemKind::Trait(..) = &item.kind { diff --git a/src/tools/clippy/clippy_lints/src/missing_const_for_thread_local.rs b/src/tools/clippy/clippy_lints/src/missing_const_for_thread_local.rs index e2ca4458edaa..d4181c677afd 100644 --- a/src/tools/clippy/clippy_lints/src/missing_const_for_thread_local.rs +++ b/src/tools/clippy/clippy_lints/src/missing_const_for_thread_local.rs @@ -81,7 +81,7 @@ fn is_unreachable(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool { | sym::core_panic_2015_macro | sym::std_panic_2015_macro | sym::core_panic_2021_macro - ) && !cx.tcx.hir().is_inside_const_context(expr.hir_id)) + ) && !cx.tcx.hir_is_inside_const_context(expr.hir_id)) || matches!( diag_name, sym::unimplemented_macro | sym::todo_macro | sym::unreachable_macro | sym::unreachable_2015_macro diff --git a/src/tools/clippy/clippy_lints/src/needless_borrowed_ref.rs b/src/tools/clippy/clippy_lints/src/needless_borrowed_ref.rs index 098098718af3..1b6896827fed 100644 --- a/src/tools/clippy/clippy_lints/src/needless_borrowed_ref.rs +++ b/src/tools/clippy/clippy_lints/src/needless_borrowed_ref.rs @@ -41,8 +41,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessBorrowedRef { && !ref_pat.span.from_expansion() && cx .tcx - .hir() - .parent_iter(ref_pat.hir_id) + .hir_parent_iter(ref_pat.hir_id) .map_while(|(_, parent)| if let Node::Pat(pat) = parent { Some(pat) } else { None }) // Do not lint patterns that are part of an OR `|` pattern, the binding mode must match in all arms .all(|pat| !matches!(pat.kind, PatKind::Or(_))) diff --git a/src/tools/clippy/clippy_lints/src/needless_late_init.rs b/src/tools/clippy/clippy_lints/src/needless_late_init.rs index 4e19a2f409dd..863a1f895c93 100644 --- a/src/tools/clippy/clippy_lints/src/needless_late_init.rs +++ b/src/tools/clippy/clippy_lints/src/needless_late_init.rs @@ -347,7 +347,7 @@ fn check<'tcx>( impl<'tcx> LateLintPass<'tcx> for NeedlessLateInit { fn check_local(&mut self, cx: &LateContext<'tcx>, local: &'tcx LetStmt<'tcx>) { - let mut parents = cx.tcx.hir().parent_iter(local.hir_id); + let mut parents = cx.tcx.hir_parent_iter(local.hir_id); if let LetStmt { init: None, pat: diff --git a/src/tools/clippy/clippy_lints/src/needless_pass_by_ref_mut.rs b/src/tools/clippy/clippy_lints/src/needless_pass_by_ref_mut.rs index 5e85d23718a9..36a0738cbc95 100644 --- a/src/tools/clippy/clippy_lints/src/needless_pass_by_ref_mut.rs +++ b/src/tools/clippy/clippy_lints/src/needless_pass_by_ref_mut.rs @@ -350,8 +350,7 @@ impl MutablyUsedVariablesCtxt<'_> { // The goal here is to find if the current scope is unsafe or not. It stops when it finds // a function or an unsafe block. fn is_in_unsafe_block(&self, item: HirId) -> bool { - let hir = self.tcx.hir(); - for (parent, node) in hir.parent_iter(item) { + for (parent, node) in self.tcx.hir_parent_iter(item) { if let Some(fn_sig) = self.tcx.hir_fn_sig_by_hir_id(parent) { return fn_sig.header.is_unsafe(); } else if let Node::Block(block) = node { diff --git a/src/tools/clippy/clippy_lints/src/new_without_default.rs b/src/tools/clippy/clippy_lints/src/new_without_default.rs index cf407e51f7af..f0ee613791fb 100644 --- a/src/tools/clippy/clippy_lints/src/new_without_default.rs +++ b/src/tools/clippy/clippy_lints/src/new_without_default.rs @@ -90,7 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for NewWithoutDefault { if sig.decl.inputs.is_empty() && name == sym::new && cx.effective_visibilities.is_reachable(impl_item.owner_id.def_id) - && let self_def_id = cx.tcx.hir().get_parent_item(id.into()) + && let self_def_id = cx.tcx.hir_get_parent_item(id.into()) && let self_ty = cx.tcx.type_of(self_def_id).instantiate_identity() && self_ty == return_ty(cx, id) && let Some(default_trait_id) = cx.tcx.get_diagnostic_item(sym::Default) diff --git a/src/tools/clippy/clippy_lints/src/no_effect.rs b/src/tools/clippy/clippy_lints/src/no_effect.rs index 4d3e6aa79d0a..7187a8f2c11a 100644 --- a/src/tools/clippy/clippy_lints/src/no_effect.rs +++ b/src/tools/clippy/clippy_lints/src/no_effect.rs @@ -141,7 +141,7 @@ impl NoEffect { stmt.span, "statement with no effect", |diag| { - for parent in cx.tcx.hir().parent_iter(stmt.hir_id) { + for parent in cx.tcx.hir_parent_iter(stmt.hir_id) { if let Node::Item(item) = parent.1 && let ItemKind::Fn { .. } = item.kind && let Node::Block(block) = cx.tcx.parent_hir_node(stmt.hir_id) diff --git a/src/tools/clippy/clippy_lints/src/non_copy_const.rs b/src/tools/clippy/clippy_lints/src/non_copy_const.rs index f965ab90da23..4007ca88a00e 100644 --- a/src/tools/clippy/clippy_lints/src/non_copy_const.rs +++ b/src/tools/clippy/clippy_lints/src/non_copy_const.rs @@ -344,7 +344,7 @@ impl<'tcx> LateLintPass<'tcx> for NonCopyConst<'tcx> { fn check_impl_item(&mut self, cx: &LateContext<'tcx>, impl_item: &'tcx ImplItem<'_>) { if let ImplItemKind::Const(_, body_id) = &impl_item.kind { - let item_def_id = cx.tcx.hir().get_parent_item(impl_item.hir_id()).def_id; + let item_def_id = cx.tcx.hir_get_parent_item(impl_item.hir_id()).def_id; let item = cx.tcx.hir().expect_item(item_def_id); match &item.kind { diff --git a/src/tools/clippy/clippy_lints/src/non_zero_suggestions.rs b/src/tools/clippy/clippy_lints/src/non_zero_suggestions.rs index f6ce1d1d5867..16c4391c0fbe 100644 --- a/src/tools/clippy/clippy_lints/src/non_zero_suggestions.rs +++ b/src/tools/clippy/clippy_lints/src/non_zero_suggestions.rs @@ -55,7 +55,7 @@ impl<'tcx> LateLintPass<'tcx> for NonZeroSuggestions { check_non_zero_conversion(cx, rhs, Applicability::MachineApplicable); } else { // Check if the parent expression is a binary operation - let parent_is_binary = cx.tcx.hir().parent_iter(expr.hir_id).any(|(_, node)| { + let parent_is_binary = cx.tcx.hir_parent_iter(expr.hir_id).any(|(_, node)| { matches!(node, rustc_hir::Node::Expr(parent_expr) if matches!(parent_expr.kind, ExprKind::Binary(..))) }); diff --git a/src/tools/clippy/clippy_lints/src/operators/assign_op_pattern.rs b/src/tools/clippy/clippy_lints/src/operators/assign_op_pattern.rs index 1315c3dfc127..5737a91031db 100644 --- a/src/tools/clippy/clippy_lints/src/operators/assign_op_pattern.rs +++ b/src/tools/clippy/clippy_lints/src/operators/assign_op_pattern.rs @@ -26,7 +26,7 @@ pub(super) fn check<'tcx>( let rty = cx.typeck_results().expr_ty(rhs); if let Some((_, lang_item)) = binop_traits(op.node) && let Some(trait_id) = cx.tcx.lang_items().get(lang_item) - && let parent_fn = cx.tcx.hir().get_parent_item(e.hir_id).def_id + && let parent_fn = cx.tcx.hir_get_parent_item(e.hir_id).def_id && trait_ref_of_method(cx, parent_fn).is_none_or(|t| t.path.res.def_id() != trait_id) && implements_trait(cx, ty, trait_id, &[rty.into()]) { diff --git a/src/tools/clippy/clippy_lints/src/operators/identity_op.rs b/src/tools/clippy/clippy_lints/src/operators/identity_op.rs index 1c2d6e90fc95..035823228278 100644 --- a/src/tools/clippy/clippy_lints/src/operators/identity_op.rs +++ b/src/tools/clippy/clippy_lints/src/operators/identity_op.rs @@ -120,7 +120,7 @@ fn needs_parenthesis(cx: &LateContext<'_>, binary: &Expr<'_>, child: &Expr<'_>) // the parent HIR node is an expression, or if the parent HIR node // is a Block or Stmt, and the new left hand side would need // parenthesis be treated as a statement rather than an expression. - if let Some((_, parent)) = cx.tcx.hir().parent_iter(binary.hir_id).next() { + if let Some((_, parent)) = cx.tcx.hir_parent_iter(binary.hir_id).next() { match parent { Node::Expr(_) => return Parens::Needed, Node::Block(_) | Node::Stmt(_) => { @@ -142,7 +142,7 @@ fn needs_parenthesis(cx: &LateContext<'_>, binary: &Expr<'_>, child: &Expr<'_>) // This would mean that the rustfix suggestion will appear at the start of a line, which causes // these expressions to be interpreted as statements if they do not have parenthesis. let mut prev_id = binary.hir_id; - for (_, parent) in cx.tcx.hir().parent_iter(binary.hir_id) { + for (_, parent) in cx.tcx.hir_parent_iter(binary.hir_id) { if let Node::Expr(expr) = parent && let ExprKind::Binary(_, lhs, _) | ExprKind::Cast(lhs, _) | ExprKind::Unary(_, lhs) = expr.kind && lhs.hir_id == prev_id diff --git a/src/tools/clippy/clippy_lints/src/panic_unimplemented.rs b/src/tools/clippy/clippy_lints/src/panic_unimplemented.rs index fa5b02a5a41b..c9bdeed660e2 100644 --- a/src/tools/clippy/clippy_lints/src/panic_unimplemented.rs +++ b/src/tools/clippy/clippy_lints/src/panic_unimplemented.rs @@ -98,7 +98,7 @@ impl<'tcx> LateLintPass<'tcx> for PanicUnimplemented { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) { if let Some(macro_call) = root_macro_call_first_node(cx, expr) { if is_panic(cx, macro_call.def_id) { - if cx.tcx.hir().is_inside_const_context(expr.hir_id) + if cx.tcx.hir_is_inside_const_context(expr.hir_id) || self.allow_panic_in_tests && is_in_test(cx.tcx, expr.hir_id) { return; @@ -139,7 +139,7 @@ impl<'tcx> LateLintPass<'tcx> for PanicUnimplemented { && let Res::Def(DefKind::Fn, def_id) = expr_path.res && match_def_path(cx, def_id, &paths::PANIC_ANY) { - if cx.tcx.hir().is_inside_const_context(expr.hir_id) + if cx.tcx.hir_is_inside_const_context(expr.hir_id) || self.allow_panic_in_tests && is_in_test(cx.tcx, expr.hir_id) { return; diff --git a/src/tools/clippy/clippy_lints/src/ptr.rs b/src/tools/clippy/clippy_lints/src/ptr.rs index 9b241edf4ccf..ef4948a05b7f 100644 --- a/src/tools/clippy/clippy_lints/src/ptr.rs +++ b/src/tools/clippy/clippy_lints/src/ptr.rs @@ -186,8 +186,7 @@ impl<'tcx> LateLintPass<'tcx> for Ptr { } fn check_body(&mut self, cx: &LateContext<'tcx>, body: &Body<'tcx>) { - let hir = cx.tcx.hir(); - let mut parents = hir.parent_iter(body.value.hir_id); + let mut parents = cx.tcx.hir_parent_iter(body.value.hir_id); let (item_id, sig, is_trait_item) = match parents.next() { Some((_, Node::Item(i))) => { if let ItemKind::Fn { sig, .. } = &i.kind { diff --git a/src/tools/clippy/clippy_lints/src/redundant_locals.rs b/src/tools/clippy/clippy_lints/src/redundant_locals.rs index e15e12629209..f3ccc9e38f4d 100644 --- a/src/tools/clippy/clippy_lints/src/redundant_locals.rs +++ b/src/tools/clippy/clippy_lints/src/redundant_locals.rs @@ -122,8 +122,7 @@ fn find_binding(pat: &Pat<'_>, name: Ident) -> Option { /// Check if a rebinding of a local changes the effect of assignments to the binding. fn affects_assignments(cx: &LateContext<'_>, mutability: Mutability, bind: HirId, rebind: HirId) -> bool { - let hir = cx.tcx.hir(); - // the binding is mutable and the rebinding is in a different scope than the original binding - mutability == Mutability::Mut && hir.get_enclosing_scope(bind) != hir.get_enclosing_scope(rebind) + mutability == Mutability::Mut + && cx.tcx.hir_get_enclosing_scope(bind) != cx.tcx.hir_get_enclosing_scope(rebind) } diff --git a/src/tools/clippy/clippy_lints/src/returns.rs b/src/tools/clippy/clippy_lints/src/returns.rs index 9f0ea84246dd..152739c2973b 100644 --- a/src/tools/clippy/clippy_lints/src/returns.rs +++ b/src/tools/clippy/clippy_lints/src/returns.rs @@ -177,8 +177,7 @@ declare_lint_pass!(Return => [LET_AND_RETURN, NEEDLESS_RETURN, NEEDLESS_RETURN_W /// because of the never-ness of `return` expressions fn stmt_needs_never_type(cx: &LateContext<'_>, stmt_hir_id: HirId) -> bool { cx.tcx - .hir() - .parent_iter(stmt_hir_id) + .hir_parent_iter(stmt_hir_id) .find_map(|(_, node)| if let Node::Expr(expr) = node { Some(expr) } else { None }) .is_some_and(|e| { cx.typeck_results() @@ -203,7 +202,7 @@ impl<'tcx> LateLintPass<'tcx> for Return { && is_res_lang_ctor(cx, path_res(cx, maybe_constr), ResultErr) // Ensure this is not the final stmt, otherwise removing it would cause a compile error - && let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir().get_parent_item(expr.hir_id)) + && let OwnerNode::Item(item) = cx.tcx.hir_owner_node(cx.tcx.hir_get_parent_item(expr.hir_id)) && let ItemKind::Fn { body, .. } = item.kind && let block = cx.tcx.hir_body(body).value && let ExprKind::Block(block, _) = block.kind diff --git a/src/tools/clippy/clippy_lints/src/self_named_constructors.rs b/src/tools/clippy/clippy_lints/src/self_named_constructors.rs index 23b47606f8aa..fc02c3a51716 100644 --- a/src/tools/clippy/clippy_lints/src/self_named_constructors.rs +++ b/src/tools/clippy/clippy_lints/src/self_named_constructors.rs @@ -51,7 +51,7 @@ impl<'tcx> LateLintPass<'tcx> for SelfNamedConstructors { _ => return, } - let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()).def_id; + let parent = cx.tcx.hir_get_parent_item(impl_item.hir_id()).def_id; let item = cx.tcx.hir().expect_item(parent); let self_ty = cx.tcx.type_of(item.owner_id).instantiate_identity(); let ret_ty = return_ty(cx, impl_item.owner_id); diff --git a/src/tools/clippy/clippy_lints/src/shadow.rs b/src/tools/clippy/clippy_lints/src/shadow.rs index a931e39bac9c..ee282ee1dfb7 100644 --- a/src/tools/clippy/clippy_lints/src/shadow.rs +++ b/src/tools/clippy/clippy_lints/src/shadow.rs @@ -224,9 +224,9 @@ fn lint_shadow(cx: &LateContext<'_>, pat: &Pat<'_>, shadowed: HirId, span: Span) /// Returns true if the expression is a simple transformation of a local binding such as `&x` fn is_self_shadow(cx: &LateContext<'_>, pat: &Pat<'_>, mut expr: &Expr<'_>, hir_id: HirId) -> bool { - let hir = cx.tcx.hir(); - let is_direct_binding = hir - .parent_iter(pat.hir_id) + let is_direct_binding = cx + .tcx + .hir_parent_iter(pat.hir_id) .map_while(|(_id, node)| match node { Node::Pat(pat) => Some(pat), _ => None, @@ -259,14 +259,14 @@ fn is_self_shadow(cx: &LateContext<'_>, pat: &Pat<'_>, mut expr: &Expr<'_>, hir_ /// For closure arguments passed to a method call, returns the method call, and the `HirId` of the /// closure (which will later be skipped). This is for fn find_init<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option<(&'tcx Expr<'tcx>, Option)> { - for (hir_id, node) in cx.tcx.hir().parent_iter(hir_id) { + for (hir_id, node) in cx.tcx.hir_parent_iter(hir_id) { let init = match node { Node::Arm(_) | Node::Pat(_) | Node::PatField(_) | Node::Param(_) => continue, Node::Expr(expr) => match expr.kind { ExprKind::Match(e, _, _) | ExprKind::Let(&LetExpr { init: e, .. }) => Some((e, None)), // If we're a closure argument, then a parent call is also an associated item. ExprKind::Closure(_) => { - if let Some((_, node)) = cx.tcx.hir().parent_iter(hir_id).next() { + if let Some((_, node)) = cx.tcx.hir_parent_iter(hir_id).next() { match node { Node::Expr(expr) => match expr.kind { ExprKind::MethodCall(_, _, _, _) | ExprKind::Call(_, _) => Some((expr, Some(hir_id))), diff --git a/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs b/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs index 597bfddecbc5..e9db7c9d031a 100644 --- a/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs +++ b/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs @@ -232,8 +232,7 @@ impl<'ap, 'lc, 'others, 'stmt, 'tcx> StmtsChecker<'ap, 'lc, 'others, 'stmt, 'tcx let block_is_ancestor = self .cx .tcx - .hir() - .parent_iter(self.ap.curr_block_hir_id) + .hir_parent_iter(self.ap.curr_block_hir_id) .any(|(id, _)| id == apa.first_block_hir_id); if last_stmt_is_not_dummy && last_stmt_is_not_curr && (block_equals_curr || block_is_ancestor) { apa.has_expensive_expr_after_last_attr = true; diff --git a/src/tools/clippy/clippy_lints/src/suspicious_trait_impl.rs b/src/tools/clippy/clippy_lints/src/suspicious_trait_impl.rs index 9326b2adaffb..fb426e91bf01 100644 --- a/src/tools/clippy/clippy_lints/src/suspicious_trait_impl.rs +++ b/src/tools/clippy/clippy_lints/src/suspicious_trait_impl.rs @@ -63,11 +63,11 @@ impl<'tcx> LateLintPass<'tcx> for SuspiciousImpl { // Check for more than one binary operation in the implemented function // Linting when multiple operations are involved can result in false positives - && let parent_fn = cx.tcx.hir().get_parent_item(expr.hir_id).def_id + && let parent_fn = cx.tcx.hir_get_parent_item(expr.hir_id).def_id && let hir::Node::ImplItem(impl_item) = cx.tcx.hir_node_by_def_id(parent_fn) && let hir::ImplItemKind::Fn(_, body_id) = impl_item.kind && let body = cx.tcx.hir_body(body_id) - && let parent_fn = cx.tcx.hir().get_parent_item(expr.hir_id).def_id + && let parent_fn = cx.tcx.hir_get_parent_item(expr.hir_id).def_id && let Some(trait_ref) = trait_ref_of_method(cx, parent_fn) && let trait_id = trait_ref.path.res.def_id() && ![binop_trait_id, op_assign_trait_id].contains(&trait_id) diff --git a/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs b/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs index 1209bd5b34f2..81c0a57083e8 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/eager_transmute.rs @@ -10,7 +10,7 @@ use rustc_middle::ty::Ty; use super::EAGER_TRANSMUTE; fn peel_parent_unsafe_blocks<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) -> Option<&'tcx Expr<'tcx>> { - for (_, parent) in cx.tcx.hir().parent_iter(expr.hir_id) { + for (_, parent) in cx.tcx.hir_parent_iter(expr.hir_id) { match parent { Node::Block(_) => {}, Node::Expr(e) if let ExprKind::Block(..) = e.kind => {}, diff --git a/src/tools/clippy/clippy_lints/src/transmute/missing_transmute_annotations.rs b/src/tools/clippy/clippy_lints/src/transmute/missing_transmute_annotations.rs index 0b5d83ef58ca..96286fcf73d6 100644 --- a/src/tools/clippy/clippy_lints/src/transmute/missing_transmute_annotations.rs +++ b/src/tools/clippy/clippy_lints/src/transmute/missing_transmute_annotations.rs @@ -7,7 +7,7 @@ use rustc_middle::ty::Ty; use crate::transmute::MISSING_TRANSMUTE_ANNOTATIONS; fn get_parent_local_binding_ty<'tcx>(cx: &LateContext<'tcx>, expr_hir_id: HirId) -> Option> { - let mut parent_iter = cx.tcx.hir().parent_iter(expr_hir_id); + let mut parent_iter = cx.tcx.hir_parent_iter(expr_hir_id); if let Some((_, node)) = parent_iter.next() { match node { Node::LetStmt(local) => Some(*local), diff --git a/src/tools/clippy/clippy_lints/src/types/mod.rs b/src/tools/clippy/clippy_lints/src/types/mod.rs index 579cbf447a2b..71e6e75c1bd3 100644 --- a/src/tools/clippy/clippy_lints/src/types/mod.rs +++ b/src/tools/clippy/clippy_lints/src/types/mod.rs @@ -375,8 +375,7 @@ impl<'tcx> LateLintPass<'tcx> for Types { ) { let is_in_trait_impl = if let hir::Node::Item(item) = cx.tcx.hir_node_by_def_id( cx.tcx - .hir() - .get_parent_item(cx.tcx.local_def_id_to_hir_id(def_id)) + .hir_get_parent_item(cx.tcx.local_def_id_to_hir_id(def_id)) .def_id, ) { matches!(item.kind, ItemKind::Impl(hir::Impl { of_trait: Some(_), .. })) @@ -420,7 +419,7 @@ impl<'tcx> LateLintPass<'tcx> for Types { ImplItemKind::Const(ty, _) => { let is_in_trait_impl = if let hir::Node::Item(item) = cx .tcx - .hir_node_by_def_id(cx.tcx.hir().get_parent_item(item.hir_id()).def_id) + .hir_node_by_def_id(cx.tcx.hir_get_parent_item(item.hir_id()).def_id) { matches!(item.kind, ItemKind::Impl(hir::Impl { of_trait: Some(_), .. })) } else { diff --git a/src/tools/clippy/clippy_lints/src/unconditional_recursion.rs b/src/tools/clippy/clippy_lints/src/unconditional_recursion.rs index 76a0b927df42..a443043bef90 100644 --- a/src/tools/clippy/clippy_lints/src/unconditional_recursion.rs +++ b/src/tools/clippy/clippy_lints/src/unconditional_recursion.rs @@ -111,7 +111,7 @@ fn get_impl_trait_def_id(cx: &LateContext<'_>, method_def_id: LocalDefId) -> Opt owner_id, .. }), - )) = cx.tcx.hir().parent_iter(hir_id).next() + )) = cx.tcx.hir_parent_iter(hir_id).next() // We exclude `impl` blocks generated from rustc's proc macros. && !cx.tcx.has_attr(*owner_id, sym::automatically_derived) // It is a implementation of a trait. @@ -216,7 +216,7 @@ fn check_to_string(cx: &LateContext<'_>, method_span: Span, method_def_id: Local owner_id, .. }), - )) = cx.tcx.hir().parent_iter(hir_id).next() + )) = cx.tcx.hir_parent_iter(hir_id).next() // We exclude `impl` blocks generated from rustc's proc macros. && !cx.tcx.has_attr(*owner_id, sym::automatically_derived) // It is a implementation of a trait. @@ -367,7 +367,7 @@ impl UnconditionalRecursion { kind: ItemKind::Impl(impl_), .. }), - )) = cx.tcx.hir().parent_iter(hir_id).next() + )) = cx.tcx.hir_parent_iter(hir_id).next() && let Some(implemented_ty_id) = get_hir_ty_def_id(cx.tcx, *impl_.self_ty) && { self.init_default_impl_for_type_if_needed(cx); diff --git a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs index c8e3c46f2f6f..93abf95e3577 100644 --- a/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs +++ b/src/tools/clippy/clippy_lints/src/undocumented_unsafe_blocks.rs @@ -291,7 +291,7 @@ fn expr_has_unnecessary_safety_comment<'tcx>( expr: &'tcx hir::Expr<'tcx>, comment_pos: BytePos, ) -> Option { - if cx.tcx.hir().parent_iter(expr.hir_id).any(|(_, ref node)| { + if cx.tcx.hir_parent_iter(expr.hir_id).any(|(_, ref node)| { matches!( node, Node::Block(Block { @@ -604,10 +604,9 @@ fn span_from_macro_expansion_has_safety_comment(cx: &LateContext<'_>, span: Span fn get_body_search_span(cx: &LateContext<'_>) -> Option { let body = cx.enclosing_body?; - let map = cx.tcx.hir(); let mut span = cx.tcx.hir_body(body).value.span; let mut maybe_global_var = false; - for (_, node) in map.parent_iter(body.hir_id) { + for (_, node) in cx.tcx.hir_parent_iter(body.hir_id) { match node { Node::Expr(e) => span = e.span, Node::Block(_) | Node::Arm(_) | Node::Stmt(_) | Node::LetStmt(_) => (), diff --git a/src/tools/clippy/clippy_lints/src/unused_io_amount.rs b/src/tools/clippy/clippy_lints/src/unused_io_amount.rs index e65123b8a949..0687fc319af6 100644 --- a/src/tools/clippy/clippy_lints/src/unused_io_amount.rs +++ b/src/tools/clippy/clippy_lints/src/unused_io_amount.rs @@ -224,7 +224,7 @@ fn is_unreachable_or_panic(cx: &LateContext<'_>, expr: &hir::Expr<'_>) -> bool { return false; }; if is_panic(cx, macro_call.def_id) { - return !cx.tcx.hir().is_inside_const_context(expr.hir_id); + return !cx.tcx.hir_is_inside_const_context(expr.hir_id); } matches!(cx.tcx.item_name(macro_call.def_id).as_str(), "unreachable") } diff --git a/src/tools/clippy/clippy_lints/src/unused_peekable.rs b/src/tools/clippy/clippy_lints/src/unused_peekable.rs index 0f9b05c84d4b..7487e273caa7 100644 --- a/src/tools/clippy/clippy_lints/src/unused_peekable.rs +++ b/src/tools/clippy/clippy_lints/src/unused_peekable.rs @@ -118,7 +118,7 @@ impl<'tcx> Visitor<'tcx> for PeekableVisitor<'_, 'tcx> { fn visit_expr(&mut self, ex: &'tcx Expr<'tcx>) -> ControlFlow<()> { if path_to_local_id(ex, self.expected_hir_id) { - for (_, node) in self.cx.tcx.hir().parent_iter(ex.hir_id) { + for (_, node) in self.cx.tcx.hir_parent_iter(ex.hir_id) { match node { Node::Expr(expr) => { match expr.kind { diff --git a/src/tools/clippy/clippy_lints/src/unused_self.rs b/src/tools/clippy/clippy_lints/src/unused_self.rs index d8305a628290..2c6c75693166 100644 --- a/src/tools/clippy/clippy_lints/src/unused_self.rs +++ b/src/tools/clippy/clippy_lints/src/unused_self.rs @@ -56,7 +56,7 @@ impl<'tcx> LateLintPass<'tcx> for UnusedSelf { if impl_item.span.from_expansion() { return; } - let parent = cx.tcx.hir().get_parent_item(impl_item.hir_id()).def_id; + let parent = cx.tcx.hir_get_parent_item(impl_item.hir_id()).def_id; let parent_item = cx.tcx.hir().expect_item(parent); let assoc_item = cx.tcx.associated_item(impl_item.owner_id); let contains_todo = |cx, body: &'_ Body<'_>| -> bool { diff --git a/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs b/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs index 1221abec1abf..4c9a7f0e16de 100644 --- a/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs +++ b/src/tools/clippy/clippy_lints/src/zero_sized_map_values.rs @@ -73,8 +73,8 @@ impl LateLintPass<'_> for ZeroSizedMapValues { } fn in_trait_impl(cx: &LateContext<'_>, hir_id: HirId) -> bool { - let parent_id = cx.tcx.hir().get_parent_item(hir_id); - let second_parent_id = cx.tcx.hir().get_parent_item(parent_id.into()).def_id; + let parent_id = cx.tcx.hir_get_parent_item(hir_id); + let second_parent_id = cx.tcx.hir_get_parent_item(parent_id.into()).def_id; if let Node::Item(item) = cx.tcx.hir_node_by_def_id(second_parent_id) { if let ItemKind::Impl(hir::Impl { of_trait: Some(_), .. }) = item.kind { return true; diff --git a/src/tools/clippy/clippy_utils/src/higher.rs b/src/tools/clippy/clippy_utils/src/higher.rs index 6bb876322f24..c4d00002292c 100644 --- a/src/tools/clippy/clippy_utils/src/higher.rs +++ b/src/tools/clippy/clippy_utils/src/higher.rs @@ -117,7 +117,7 @@ impl<'hir> IfLet<'hir> { if_else, ) = expr.kind { - let mut iter = cx.tcx.hir().parent_iter(expr.hir_id); + let mut iter = cx.tcx.hir_parent_iter(expr.hir_id); if let Some((_, Node::Block(Block { stmts: [], .. }))) = iter.next() { if let Some(( _, diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 15e395731ade..40ddd75b7fad 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -212,7 +212,7 @@ pub fn find_binding_init<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option< /// /// e.g. returns true for `x` in `fn f(x: usize) { .. }` and `let x = 1;` but false for `let x;` pub fn local_is_initialized(cx: &LateContext<'_>, local: HirId) -> bool { - for (_, node) in cx.tcx.hir().parent_iter(local) { + for (_, node) in cx.tcx.hir_parent_iter(local) { match node { Node::Pat(..) | Node::PatField(..) => {}, Node::LetStmt(let_stmt) => return let_stmt.init.is_some(), @@ -227,7 +227,7 @@ pub fn local_is_initialized(cx: &LateContext<'_>, local: HirId) -> bool { /// /// The current context is determined based on the current body which is set before calling a lint's /// entry point (any function on `LateLintPass`). If you need to check in a different context use -/// `tcx.hir().is_inside_const_context(_)`. +/// `tcx.hir_is_inside_const_context(_)`. /// /// Do not call this unless the `LateContext` has an enclosing body. For release build this case /// will safely return `false`, but debug builds will ICE. Note that `check_expr`, `check_block`, @@ -806,7 +806,7 @@ pub fn get_trait_def_id(tcx: TyCtxt<'_>, path: &[&str]) -> Option { pub fn trait_ref_of_method<'tcx>(cx: &LateContext<'tcx>, def_id: LocalDefId) -> Option<&'tcx TraitRef<'tcx>> { // Get the implemented trait for the current function let hir_id = cx.tcx.local_def_id_to_hir_id(def_id); - let parent_impl = cx.tcx.hir().get_parent_item(hir_id); + let parent_impl = cx.tcx.hir_get_parent_item(hir_id); if parent_impl != hir::CRATE_OWNER_ID && let Node::Item(item) = cx.tcx.hir_node_by_def_id(parent_impl.def_id) && let ItemKind::Impl(impl_) = &item.kind @@ -1117,7 +1117,7 @@ pub fn capture_local_usage(cx: &LateContext<'_>, e: &Expr<'_>) -> CaptureKind { let mut capture = CaptureKind::Value; let mut capture_expr_ty = e; - for (parent_id, parent) in cx.tcx.hir().parent_iter(e.hir_id) { + for (parent_id, parent) in cx.tcx.hir_parent_iter(e.hir_id) { if let [ Adjustment { kind: Adjust::Deref(_) | Adjust::Borrow(AutoBorrow::Ref(..)), @@ -1336,13 +1336,13 @@ pub fn is_entrypoint_fn(cx: &LateContext<'_>, def_id: DefId) -> bool { /// Returns `true` if the expression is in the program's `#[panic_handler]`. pub fn is_in_panic_handler(cx: &LateContext<'_>, e: &Expr<'_>) -> bool { - let parent = cx.tcx.hir().get_parent_item(e.hir_id); + let parent = cx.tcx.hir_get_parent_item(e.hir_id); Some(parent.to_def_id()) == cx.tcx.lang_items().panic_impl() } /// Gets the name of the item the expression is in, if available. pub fn get_item_name(cx: &LateContext<'_>, expr: &Expr<'_>) -> Option { - let parent_id = cx.tcx.hir().get_parent_item(expr.hir_id).def_id; + let parent_id = cx.tcx.hir_get_parent_item(expr.hir_id).def_id; match cx.tcx.hir_node_by_def_id(parent_id) { Node::Item(Item { ident, .. }) | Node::TraitItem(TraitItem { ident, .. }) @@ -1407,9 +1407,9 @@ pub fn get_parent_expr_for_hir<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> O /// Gets the enclosing block, if any. pub fn get_enclosing_block<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option<&'tcx Block<'tcx>> { - let map = &cx.tcx.hir(); - let enclosing_node = map - .get_enclosing_scope(hir_id) + let enclosing_node = cx + .tcx + .hir_get_enclosing_scope(hir_id) .map(|enclosing_id| cx.tcx.hir_node(enclosing_id)); enclosing_node.and_then(|node| match node { Node::Block(block) => Some(block), @@ -1433,7 +1433,7 @@ pub fn get_enclosing_loop_or_multi_call_closure<'tcx>( cx: &LateContext<'tcx>, expr: &Expr<'_>, ) -> Option<&'tcx Expr<'tcx>> { - for (_, node) in cx.tcx.hir().parent_iter(expr.hir_id) { + for (_, node) in cx.tcx.hir_parent_iter(expr.hir_id) { match node { Node::Expr(e) => match e.kind { ExprKind::Closure { .. } @@ -1453,7 +1453,7 @@ pub fn get_enclosing_loop_or_multi_call_closure<'tcx>( /// Gets the parent node if it's an impl block. pub fn get_parent_as_impl(tcx: TyCtxt<'_>, id: HirId) -> Option<&Impl<'_>> { - match tcx.hir().parent_iter(id).next() { + match tcx.hir_parent_iter(id).next() { Some(( _, Node::Item(Item { @@ -1531,7 +1531,7 @@ pub fn peel_blocks_with_stmt<'a>(mut expr: &'a Expr<'a>) -> &'a Expr<'a> { /// Checks if the given expression is the else clause of either an `if` or `if let` expression. pub fn is_else_clause(tcx: TyCtxt<'_>, expr: &Expr<'_>) -> bool { - let mut iter = tcx.hir().parent_iter(expr.hir_id); + let mut iter = tcx.hir_parent_iter(expr.hir_id); match iter.next() { Some(( _, @@ -1548,7 +1548,7 @@ pub fn is_else_clause(tcx: TyCtxt<'_>, expr: &Expr<'_>) -> bool { /// returns `true` for both the `init` and the `else` part pub fn is_inside_let_else(tcx: TyCtxt<'_>, expr: &Expr<'_>) -> bool { let mut child_id = expr.hir_id; - for (parent_id, node) in tcx.hir().parent_iter(child_id) { + for (parent_id, node) in tcx.hir_parent_iter(child_id) { if let Node::LetStmt(LetStmt { init: Some(init), els: Some(els), @@ -1568,7 +1568,7 @@ pub fn is_inside_let_else(tcx: TyCtxt<'_>, expr: &Expr<'_>) -> bool { /// Checks if the given expression is the else clause of a `let else` expression pub fn is_else_clause_in_let_else(tcx: TyCtxt<'_>, expr: &Expr<'_>) -> bool { let mut child_id = expr.hir_id; - for (parent_id, node) in tcx.hir().parent_iter(child_id) { + for (parent_id, node) in tcx.hir_parent_iter(child_id) { if let Node::LetStmt(LetStmt { els: Some(els), .. }) = node && els.hir_id == child_id { @@ -1961,7 +1961,7 @@ pub fn any_parent_has_attr(tcx: TyCtxt<'_>, node: HirId, symbol: Symbol) -> bool return true; } prev_enclosing_node = Some(enclosing_node); - enclosing_node = map.get_parent_item(enclosing_node).into(); + enclosing_node = tcx.hir_get_parent_item(enclosing_node).into(); } false @@ -1970,8 +1970,8 @@ pub fn any_parent_has_attr(tcx: TyCtxt<'_>, node: HirId, symbol: Symbol) -> bool /// Checks if the given HIR node is inside an `impl` block with the `automatically_derived` /// attribute. pub fn in_automatically_derived(tcx: TyCtxt<'_>, id: HirId) -> bool { - tcx.hir() - .parent_owner_iter(id) + tcx + .hir_parent_owner_iter(id) .filter(|(_, node)| matches!(node, OwnerNode::Item(item) if matches!(item.kind, ItemKind::Impl(_)))) .any(|(id, _)| { has_attr( @@ -2202,7 +2202,7 @@ pub fn is_expr_identity_function(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool /// Returns both the node and the `HirId` of the closest child node. pub fn get_expr_use_or_unification_node<'tcx>(tcx: TyCtxt<'tcx>, expr: &Expr<'_>) -> Option<(Node<'tcx>, HirId)> { let mut child_id = expr.hir_id; - let mut iter = tcx.hir().parent_iter(child_id); + let mut iter = tcx.hir_parent_iter(child_id); loop { match iter.next() { None => break None, @@ -2581,7 +2581,7 @@ pub fn is_in_test_function(tcx: TyCtxt<'_>, id: HirId) -> bool { with_test_item_names(tcx, tcx.parent_module(id), |names| { let node = tcx.hir_node(id); once((id, node)) - .chain(tcx.hir().parent_iter(id)) + .chain(tcx.hir_parent_iter(id)) // Since you can nest functions we need to collect all until we leave // function scope .any(|(_id, node)| { @@ -2617,8 +2617,8 @@ pub fn is_cfg_test(tcx: TyCtxt<'_>, id: HirId) -> bool { /// Checks if any parent node of `HirId` has `#[cfg(test)]` attribute applied pub fn is_in_cfg_test(tcx: TyCtxt<'_>, id: HirId) -> bool { - tcx.hir() - .parent_id_iter(id) + tcx + .hir_parent_id_iter(id) .any(|parent_id| is_cfg_test(tcx, parent_id)) } @@ -2632,8 +2632,8 @@ pub fn inherits_cfg(tcx: TyCtxt<'_>, def_id: LocalDefId) -> bool { let hir = tcx.hir(); tcx.has_attr(def_id, sym::cfg) - || hir - .parent_iter(tcx.local_def_id_to_hir_id(def_id)) + || tcx + .hir_parent_iter(tcx.local_def_id_to_hir_id(def_id)) .flat_map(|(parent_id, _)| hir.attrs(parent_id)) .any(|attr| attr.has_name(sym::cfg)) } @@ -2653,8 +2653,7 @@ pub fn walk_to_expr_usage<'tcx, T>( e: &Expr<'tcx>, mut f: impl FnMut(HirId, Node<'tcx>, HirId) -> ControlFlow, ) -> Option, HirId)>> { - let map = cx.tcx.hir(); - let mut iter = map.parent_iter(e.hir_id); + let mut iter = cx.tcx.hir_parent_iter(e.hir_id); let mut child_id = e.hir_id; while let Some((parent_id, parent)) = iter.next() { @@ -2677,7 +2676,7 @@ pub fn walk_to_expr_usage<'tcx, T>( ExprKind::If(child, ..) | ExprKind::Match(child, ..) if child.hir_id != child_id => child_id = parent_id, ExprKind::Break(Destination { target_id: Ok(id), .. }, _) => { child_id = id; - iter = map.parent_iter(id); + iter = cx.tcx.hir_parent_iter(id); }, ExprKind::Block(..) | ExprKind::DropTemps(_) => child_id = parent_id, _ => return Some(ControlFlow::Continue((parent, child_id))), diff --git a/src/tools/clippy/clippy_utils/src/macros.rs b/src/tools/clippy/clippy_utils/src/macros.rs index 30fd48fc0605..9ce0fd8318f1 100644 --- a/src/tools/clippy/clippy_utils/src/macros.rs +++ b/src/tools/clippy/clippy_utils/src/macros.rs @@ -178,7 +178,7 @@ pub fn first_node_in_macro(cx: &LateContext<'_>, node: &impl HirNode) -> Option< // get the parent node, possibly skipping over a statement // if the parent is not found, it is sensible to return `Some(root)` let hir = cx.tcx.hir(); - let mut parent_iter = hir.parent_iter(node.hir_id()); + let mut parent_iter = cx.tcx.hir_parent_iter(node.hir_id()); let (parent_id, _) = match parent_iter.next() { None => return Some(ExpnId::root()), Some((_, Node::Stmt(_))) => match parent_iter.next() { From efff15afeabedacc2798d214dac404061df1555d Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Tue, 18 Feb 2025 13:40:58 -0800 Subject: [PATCH 192/255] compiler: Align::max_for_offset -> Align::max_aligned_factor No functional changes. --- compiler/rustc_abi/src/lib.rs | 17 ++++++++--------- compiler/rustc_ty_utils/src/layout.rs | 2 +- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 098638b6bcfa..761df0ba1ceb 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -810,20 +810,19 @@ impl Align { self.bits().try_into().unwrap() } - /// Computes the best alignment possible for the given offset - /// (the largest power of two that the offset is a multiple of). + /// Obtain the greatest factor of `size` that is an alignment + /// (the largest power of two the Size is a multiple of). /// - /// N.B., for an offset of `0`, this happens to return `2^64`. + /// Note that all numbers are factors of 0 #[inline] - pub fn max_for_offset(offset: Size) -> Align { - Align { pow2: offset.bytes().trailing_zeros() as u8 } + pub fn max_aligned_factor(size: Size) -> Align { + Align { pow2: size.bytes().trailing_zeros() as u8 } } - /// Lower the alignment, if necessary, such that the given offset - /// is aligned to it (the offset is a multiple of the alignment). + /// Reduces Align to an aligned factor of `size`. #[inline] - pub fn restrict_for_offset(self, offset: Size) -> Align { - self.min(Align::max_for_offset(offset)) + pub fn restrict_for_offset(self, size: Size) -> Align { + self.min(Align::max_aligned_factor(size)) } } diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index b6a14d147cad..e95c95ed6c59 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -534,7 +534,7 @@ fn layout_of_uncached<'tcx>( ( BackendRepr::Memory { sized: true }, AbiAndPrefAlign { - abi: Align::max_for_offset(size), + abi: Align::max_aligned_factor(size), pref: dl.vector_align(size).pref, }, ) From 5c474fd99b97b0d86d410dfe25b876b374b436fa Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Tue, 18 Feb 2025 18:53:15 -0800 Subject: [PATCH 193/255] compiler: `BackendRepr::inherent_{size,align} -> scalar_{size,align}` This pair of fn was introduced to perform invariant checks for scalars. Their current behavior doesn't mesh as well with checking SIMD types, so change the name of the fn to reflect their actual use-case and refactor the corresponding checks. Also simplify the returns from Option to Option, because every site was mapping away the "preferred" alignment anyways. --- compiler/rustc_abi/src/layout.rs | 37 ++++++++----- compiler/rustc_abi/src/lib.rs | 53 ++++++++++--------- .../rustc_ty_utils/src/layout/invariant.rs | 51 ++++++++++-------- 3 files changed, 78 insertions(+), 63 deletions(-) diff --git a/compiler/rustc_abi/src/layout.rs b/compiler/rustc_abi/src/layout.rs index 53243266f992..3f83787ea376 100644 --- a/compiler/rustc_abi/src/layout.rs +++ b/compiler/rustc_abi/src/layout.rs @@ -310,10 +310,10 @@ impl LayoutCalculator { let mut align = if repr.pack.is_some() { dl.i8_align } else { dl.aggregate_align }; let mut max_repr_align = repr.align; - // If all the non-ZST fields have the same ABI and union ABI optimizations aren't - // disabled, we can use that common ABI for the union as a whole. + // If all the non-ZST fields have the same repr and union repr optimizations aren't + // disabled, we can use that common repr for the union as a whole. struct AbiMismatch; - let mut common_non_zst_abi_and_align = if repr.inhibits_union_abi_opt() { + let mut common_non_zst_repr_and_align = if repr.inhibits_union_abi_opt() { // Can't optimize Err(AbiMismatch) } else { @@ -337,14 +337,14 @@ impl LayoutCalculator { continue; } - if let Ok(common) = common_non_zst_abi_and_align { + if let Ok(common) = common_non_zst_repr_and_align { // Discard valid range information and allow undef let field_abi = field.backend_repr.to_union(); if let Some((common_abi, common_align)) = common { if common_abi != field_abi { // Different fields have different ABI: disable opt - common_non_zst_abi_and_align = Err(AbiMismatch); + common_non_zst_repr_and_align = Err(AbiMismatch); } else { // Fields with the same non-Aggregate ABI should also // have the same alignment @@ -357,7 +357,7 @@ impl LayoutCalculator { } } else { // First non-ZST field: record its ABI and alignment - common_non_zst_abi_and_align = Ok(Some((field_abi, field.align.abi))); + common_non_zst_repr_and_align = Ok(Some((field_abi, field.align.abi))); } } } @@ -376,16 +376,25 @@ impl LayoutCalculator { // If all non-ZST fields have the same ABI, we may forward that ABI // for the union as a whole, unless otherwise inhibited. - let abi = match common_non_zst_abi_and_align { + let backend_repr = match common_non_zst_repr_and_align { Err(AbiMismatch) | Ok(None) => BackendRepr::Memory { sized: true }, - Ok(Some((abi, _))) => { - if abi.inherent_align(dl).map(|a| a.abi) != Some(align.abi) { - // Mismatched alignment (e.g. union is #[repr(packed)]): disable opt + Ok(Some((repr, _))) => match repr { + // Mismatched alignment (e.g. union is #[repr(packed)]): disable opt + BackendRepr::Scalar(_) | BackendRepr::ScalarPair(_, _) + if repr.scalar_align(dl).unwrap() != align.abi => + { BackendRepr::Memory { sized: true } - } else { - abi } - } + // Vectors require at least element alignment, else disable the opt + BackendRepr::Vector { element, count: _ } if element.align(dl).abi > align.abi => { + BackendRepr::Memory { sized: true } + } + // the alignment tests passed and we can use this + BackendRepr::Scalar(..) + | BackendRepr::ScalarPair(..) + | BackendRepr::Vector { .. } + | BackendRepr::Memory { .. } => repr, + }, }; let Some(union_field_count) = NonZeroUsize::new(only_variant.len()) else { @@ -400,7 +409,7 @@ impl LayoutCalculator { Ok(LayoutData { variants: Variants::Single { index: only_variant_idx }, fields: FieldsShape::Union(union_field_count), - backend_repr: abi, + backend_repr, largest_niche: None, uninhabited: false, align, diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 761df0ba1ceb..43a7141472c5 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1454,37 +1454,38 @@ impl BackendRepr { matches!(*self, BackendRepr::Scalar(s) if s.is_bool()) } - /// Returns the fixed alignment of this ABI, if any is mandated. - pub fn inherent_align(&self, cx: &C) -> Option { - Some(match *self { - BackendRepr::Scalar(s) => s.align(cx), - BackendRepr::ScalarPair(s1, s2) => s1.align(cx).max(s2.align(cx)), - BackendRepr::Vector { element, count } => { - cx.data_layout().vector_align(element.size(cx) * count) - } - BackendRepr::Memory { .. } => return None, - }) + /// The psABI alignment for a `Scalar` or `ScalarPair` + /// + /// `None` for other variants. + pub fn scalar_align(&self, cx: &C) -> Option { + match *self { + BackendRepr::Scalar(s) => Some(s.align(cx).abi), + BackendRepr::ScalarPair(s1, s2) => Some(s1.align(cx).max(s2.align(cx)).abi), + // The align of a Vector can vary in surprising ways + BackendRepr::Vector { .. } | BackendRepr::Memory { .. } => None, + } } - /// Returns the fixed size of this ABI, if any is mandated. - pub fn inherent_size(&self, cx: &C) -> Option { - Some(match *self { - BackendRepr::Scalar(s) => { - // No padding in scalars. - s.size(cx) - } + /// The psABI size for a `Scalar` or `ScalarPair` + /// + /// `None` for other variants + pub fn scalar_size(&self, cx: &C) -> Option { + match *self { + // No padding in scalars. + BackendRepr::Scalar(s) => Some(s.size(cx)), + // May have some padding between the pair. BackendRepr::ScalarPair(s1, s2) => { - // May have some padding between the pair. let field2_offset = s1.size(cx).align_to(s2.align(cx).abi); - (field2_offset + s2.size(cx)).align_to(self.inherent_align(cx)?.abi) + let size = (field2_offset + s2.size(cx)).align_to( + self.scalar_align(cx) + // We absolutely must have an answer here or everything is FUBAR. + .unwrap(), + ); + Some(size) } - BackendRepr::Vector { element, count } => { - // No padding in vectors, except possibly for trailing padding - // to make the size a multiple of align (e.g. for vectors of size 3). - (element.size(cx) * count).align_to(self.inherent_align(cx)?.abi) - } - BackendRepr::Memory { .. } => return None, - }) + // The size of a Vector can vary in surprising ways + BackendRepr::Vector { .. } | BackendRepr::Memory { .. } => None, + } } /// Discard validity range information and allow undef. diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index 5ea6716c5ca1..cbbe993b62f6 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -69,31 +69,30 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou } fn check_layout_abi<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) { - // Verify the ABI mandated alignment and size. - let align = layout.backend_repr.inherent_align(cx).map(|align| align.abi); - let size = layout.backend_repr.inherent_size(cx); - let Some((align, size)) = align.zip(size) else { - assert_matches!( - layout.layout.backend_repr(), - BackendRepr::Memory { .. }, - "ABI unexpectedly missing alignment and/or size in {layout:#?}" + // Verify the ABI-mandated alignment and size for scalars. + let align = layout.backend_repr.scalar_align(cx); + let size = layout.backend_repr.scalar_size(cx); + if let Some(align) = align { + assert_eq!( + layout.layout.align().abi, + align, + "alignment mismatch between ABI and layout in {layout:#?}" ); - return; - }; - assert_eq!( - layout.layout.align().abi, - align, - "alignment mismatch between ABI and layout in {layout:#?}" - ); - assert_eq!( - layout.layout.size(), - size, - "size mismatch between ABI and layout in {layout:#?}" - ); + } + if let Some(size) = size { + assert_eq!( + layout.layout.size(), + size, + "size mismatch between ABI and layout in {layout:#?}" + ); + } // Verify per-ABI invariants match layout.layout.backend_repr() { BackendRepr::Scalar(_) => { + // These must always be present for `Scalar` types. + let align = align.unwrap(); + let size = size.unwrap(); // Check that this matches the underlying field. let inner = skip_newtypes(cx, layout); assert!( @@ -235,9 +234,15 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou "`ScalarPair` second field with bad ABI in {inner:#?}", ); } - BackendRepr::Vector { element, .. } => { - assert!(align >= element.align(cx).abi); // just sanity-checking `vector_align`. - // FIXME: Do some kind of check of the inner type, like for Scalar and ScalarPair. + BackendRepr::Vector { element, count } => { + let align = layout.align.abi; + let size = layout.size; + let element_align = element.align(cx).abi; + let element_size = element.size(cx); + // Currently, vectors must always be aligned to at least their elements: + assert!(align >= element_align); + // And the size has to be element * count plus alignment padding, of course + assert!(size == (element_size * count).align_to(align)); } BackendRepr::Memory { .. } => {} // Nothing to check. } From 79f41c773aaad6a10c2c752d223bd5aba0371f9b Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Wed, 19 Feb 2025 14:53:31 -0800 Subject: [PATCH 194/255] compiler: split vector_align into cabi and llvmlike Introduce a pair of functions that actually describe what they do, because it wasn't clear the alignment is sometimes a forgery. --- compiler/rustc_abi/src/callconv/reg.rs | 2 +- compiler/rustc_abi/src/lib.rs | 23 ++++++++++++++--------- compiler/rustc_ty_utils/src/layout.rs | 7 +++++-- 3 files changed, 20 insertions(+), 12 deletions(-) diff --git a/compiler/rustc_abi/src/callconv/reg.rs b/compiler/rustc_abi/src/callconv/reg.rs index 66f47c52c15d..8cf140dbaad4 100644 --- a/compiler/rustc_abi/src/callconv/reg.rs +++ b/compiler/rustc_abi/src/callconv/reg.rs @@ -57,7 +57,7 @@ impl Reg { 128 => dl.f128_align.abi, _ => panic!("unsupported float: {self:?}"), }, - RegKind::Vector => dl.vector_align(self.size).abi, + RegKind::Vector => dl.llvmlike_vector_align(self.size).abi, } } } diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 43a7141472c5..094a25129aea 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -408,16 +408,21 @@ impl TargetDataLayout { } } + /// psABI-mandated alignment for a vector type, if any #[inline] - pub fn vector_align(&self, vec_size: Size) -> AbiAndPrefAlign { - for &(size, align) in &self.vector_align { - if size == vec_size { - return align; - } - } - // Default to natural alignment, which is what LLVM does. - // That is, use the size, rounded up to a power of 2. - AbiAndPrefAlign::new(Align::from_bytes(vec_size.bytes().next_power_of_two()).unwrap()) + fn cabi_vector_align(&self, vec_size: Size) -> Option { + self.vector_align + .iter() + .find(|(size, _align)| *size == vec_size) + .map(|(_size, align)| *align) + } + + /// an alignment resembling the one LLVM would pick for a vector + #[inline] + pub fn llvmlike_vector_align(&self, vec_size: Size) -> AbiAndPrefAlign { + self.cabi_vector_align(vec_size).unwrap_or(AbiAndPrefAlign::new( + Align::from_bytes(vec_size.bytes().next_power_of_two()).unwrap(), + )) } } diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index e95c95ed6c59..0b5683bb84b6 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -535,11 +535,14 @@ fn layout_of_uncached<'tcx>( BackendRepr::Memory { sized: true }, AbiAndPrefAlign { abi: Align::max_aligned_factor(size), - pref: dl.vector_align(size).pref, + pref: dl.llvmlike_vector_align(size).pref, }, ) } else { - (BackendRepr::Vector { element: e_abi, count: e_len }, dl.vector_align(size)) + ( + BackendRepr::Vector { element: e_abi, count: e_len }, + dl.llvmlike_vector_align(size), + ) }; let size = size.align_to(align.abi); From 46f7a7d378972b4034118f798657a6d35091a4ca Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Tue, 18 Feb 2025 19:27:26 -0800 Subject: [PATCH 195/255] rust-analyzer: use new function in (incorrect) layout computation This is only to fix the build. --- src/tools/rust-analyzer/crates/hir-ty/src/layout.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs index f5a7b6581230..a72bcad50a0a 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/layout.rs @@ -179,7 +179,7 @@ fn layout_of_simd_ty( .size .checked_mul(e_len, dl) .ok_or(LayoutError::BadCalc(LayoutCalculatorError::SizeOverflow))?; - let align = dl.vector_align(size); + let align = dl.llvmlike_vector_align(size); let size = size.align_to(align.abi); // Compute the placement of the vector fields: From da77b39f05711fbecbfcb392314f885eece1e3f5 Mon Sep 17 00:00:00 2001 From: Scott McMurray Date: Thu, 20 Feb 2025 22:26:24 -0800 Subject: [PATCH 196/255] Refactor `OperandRef::extract_field` to prep for 838 --- compiler/rustc_codegen_ssa/src/mir/operand.rs | 46 ++++++++++--------- 1 file changed, 24 insertions(+), 22 deletions(-) diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index faf1300e4731..e7e4dfa05d0c 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -358,19 +358,33 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { let field = self.layout.field(bx.cx(), i); let offset = self.layout.fields.offset(i); + if !bx.is_backend_ref(self.layout) && bx.is_backend_ref(field) { + if let BackendRepr::Vector { count, .. } = self.layout.backend_repr + && let BackendRepr::Memory { sized: true } = field.backend_repr + && count.is_power_of_two() + { + assert_eq!(field.size, self.layout.size); + // This is being deprecated, but for now stdarch still needs it for + // Newtype vector of array, e.g. #[repr(simd)] struct S([i32; 4]); + let place = PlaceRef::alloca(bx, field); + self.val.store(bx, place.val.with_type(self.layout)); + return bx.load_operand(place); + } else { + // Part of https://github.com/rust-lang/compiler-team/issues/838 + bug!("Non-ref type {self:?} cannot project to ref field type {field:?}"); + } + } + let val = if field.is_zst() { OperandValue::ZeroSized } else if field.size == self.layout.size { assert_eq!(offset.bytes(), 0); - if let Some(field_val) = fx.codegen_transmute_operand(bx, *self, field) { - field_val - } else { - // we have to go through memory for things like - // Newtype vector of array, e.g. #[repr(simd)] struct S([i32; 4]); - let place = PlaceRef::alloca(bx, field); - self.val.store(bx, place.val.with_type(self.layout)); - bx.load_operand(place).val - } + fx.codegen_transmute_operand(bx, *self, field).unwrap_or_else(|| { + bug!( + "Expected `codegen_transmute_operand` to handle equal-size \ + field {i:?} projection from {self:?} to {field:?}" + ) + }) } else { let (in_scalar, imm) = match (self.val, self.layout.backend_repr) { // Extract a scalar component from a pair. @@ -385,11 +399,6 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { } } - // `#[repr(simd)]` types are also immediate. - (OperandValue::Immediate(llval), BackendRepr::Vector { .. }) => { - (None, bx.extract_element(llval, bx.cx().const_usize(i as u64))) - } - _ => { span_bug!(fx.mir.span, "OperandRef::extract_field({:?}): not applicable", self) } @@ -415,14 +424,7 @@ impl<'a, 'tcx, V: CodegenObject> OperandRef<'tcx, V> { imm } } - BackendRepr::Memory { sized: true } => { - span_bug!( - fx.mir.span, - "Projecting into a simd type with padding doesn't work; \ - See ", - ); - } - BackendRepr::ScalarPair(_, _) | BackendRepr::Memory { sized: false } => bug!(), + BackendRepr::ScalarPair(_, _) | BackendRepr::Memory { .. } => bug!(), }) }; From 7312747f67996b75c35bfb776c124d94d5720a8d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Fri, 21 Feb 2025 08:28:42 +0100 Subject: [PATCH 197/255] Add build step log for `run-make-support` I was always confused about what is being built, since nothing was printed in the log :) --- src/bootstrap/src/core/build_steps/test.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index b3f4a7bad99c..16f5d2c5e3f3 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1234,6 +1234,14 @@ impl Step for RunMakeSupport { &[], ); + let _guard = builder.msg_tool( + Kind::Build, + Mode::ToolStd, + "run-make-support", + self.compiler.stage, + &self.compiler.host, + &self.target, + ); cargo.into_cmd().run(builder); let lib_name = "librun_make_support.rlib"; From 2f29c2ef5516e553c4ce5eb423efc864f8eb20d6 Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Fri, 21 Feb 2025 01:11:09 -0800 Subject: [PATCH 198/255] Do not exempt nonexistent platforms from platform policy --- src/tools/tidy/src/target_policy.rs | 1 - 1 file changed, 1 deletion(-) diff --git a/src/tools/tidy/src/target_policy.rs b/src/tools/tidy/src/target_policy.rs index b2681934417c..776221d30623 100644 --- a/src/tools/tidy/src/target_policy.rs +++ b/src/tools/tidy/src/target_policy.rs @@ -21,7 +21,6 @@ const EXCEPTIONS: &[&str] = &[ "xtensa_esp32s2_espidf", "xtensa_esp32s3_none_elf", "xtensa_esp32s3_espidf", - "i586_pc_nto_qnx700", // Renamed to i686-pc-nto-qnx700, see https://github.com/rust-lang/rust/issues/136495 ]; pub fn check(root_path: &Path, bad: &mut bool) { From 918b5c391fb1d0aee0de2a189ead53c8b9daa0f6 Mon Sep 17 00:00:00 2001 From: klensy Date: Fri, 21 Feb 2025 15:06:26 +0300 Subject: [PATCH 199/255] remove unused pred_rcache --- compiler/rustc_middle/src/ty/context.rs | 2 -- 1 file changed, 2 deletions(-) diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 35893ad953d1..f4272672bd3e 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1370,7 +1370,6 @@ pub struct GlobalCtxt<'tcx> { // Internal caches for metadata decoding. No need to track deps on this. pub ty_rcache: Lock>>, - pub pred_rcache: Lock>>, /// Caches the results of trait selection. This cache is used /// for things that do not have to do with the parameters in scope. @@ -1601,7 +1600,6 @@ impl<'tcx> TyCtxt<'tcx> { query_system, query_kinds, ty_rcache: Default::default(), - pred_rcache: Default::default(), selection_cache: Default::default(), evaluation_cache: Default::default(), new_solver_evaluation_cache: Default::default(), From 8d2de634ecdad2dc95e59b79aed7d0c48c533006 Mon Sep 17 00:00:00 2001 From: klensy Date: Fri, 21 Feb 2025 15:29:17 +0300 Subject: [PATCH 200/255] convert all_macro_rules from hashmap to hashset --- compiler/rustc_middle/src/ty/mod.rs | 2 +- compiler/rustc_resolve/src/build_reduced_graph.rs | 2 +- compiler/rustc_resolve/src/lib.rs | 2 +- src/librustdoc/passes/collect_intra_doc_links.rs | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index a1d44882e63f..bd1fb0ca41cf 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -179,7 +179,7 @@ pub struct ResolverGlobalCtxt { pub confused_type_with_std_module: FxIndexMap, pub doc_link_resolutions: FxIndexMap, pub doc_link_traits_in_scope: FxIndexMap>, - pub all_macro_rules: FxHashMap>, + pub all_macro_rules: FxHashSet, pub stripped_cfg_items: Steal>, } diff --git a/compiler/rustc_resolve/src/build_reduced_graph.rs b/compiler/rustc_resolve/src/build_reduced_graph.rs index c6781ecc5668..87f7eda391d9 100644 --- a/compiler/rustc_resolve/src/build_reduced_graph.rs +++ b/compiler/rustc_resolve/src/build_reduced_graph.rs @@ -1241,7 +1241,7 @@ impl<'a, 'ra, 'tcx> BuildReducedGraphVisitor<'a, 'ra, 'tcx> { }; let binding = (res, vis, span, expansion).to_name_binding(self.r.arenas); self.r.set_binding_parent_module(binding, parent_scope.module); - self.r.all_macro_rules.insert(ident.name, res); + self.r.all_macro_rules.insert(ident.name); if is_macro_export { let import = self.r.arenas.alloc_import(ImportData { kind: ImportKind::MacroExport, diff --git a/compiler/rustc_resolve/src/lib.rs b/compiler/rustc_resolve/src/lib.rs index 5bc37e09f089..eb4ac6ce77c9 100644 --- a/compiler/rustc_resolve/src/lib.rs +++ b/compiler/rustc_resolve/src/lib.rs @@ -1220,7 +1220,7 @@ pub struct Resolver<'ra, 'tcx> { effective_visibilities: EffectiveVisibilities, doc_link_resolutions: FxIndexMap, doc_link_traits_in_scope: FxIndexMap>, - all_macro_rules: FxHashMap, + all_macro_rules: FxHashSet, /// Invocation ids of all glob delegations. glob_delegation_invoc_ids: FxHashSet, diff --git a/src/librustdoc/passes/collect_intra_doc_links.rs b/src/librustdoc/passes/collect_intra_doc_links.rs index 9fe8b99e8af8..97e6d3146427 100644 --- a/src/librustdoc/passes/collect_intra_doc_links.rs +++ b/src/librustdoc/passes/collect_intra_doc_links.rs @@ -1983,7 +1983,7 @@ fn resolution_failure( .tcx .resolutions(()) .all_macro_rules - .contains_key(&Symbol::intern(path_str)) + .contains(&Symbol::intern(path_str)) { diag.note(format!( "`macro_rules` named `{path_str}` exists in this crate, \ From b94162078d43ee07277a8a746e4176588a7ab93b Mon Sep 17 00:00:00 2001 From: Kornel Date: Mon, 17 Feb 2025 17:05:21 +0000 Subject: [PATCH 201/255] Highlight thread_local! const init in docs --- library/std/src/thread/local.rs | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/library/std/src/thread/local.rs b/library/std/src/thread/local.rs index ca04aa4ada49..d5a5d10205dd 100644 --- a/library/std/src/thread/local.rs +++ b/library/std/src/thread/local.rs @@ -50,7 +50,8 @@ use crate::fmt; /// use std::cell::Cell; /// use std::thread; /// -/// thread_local!(static FOO: Cell = Cell::new(1)); +/// // explicit `const {}` block enables more efficient initialization +/// thread_local!(static FOO: Cell = const { Cell::new(1) }); /// /// assert_eq!(FOO.get(), 1); /// FOO.set(2); @@ -138,7 +139,7 @@ impl fmt::Debug for LocalKey { /// use std::cell::{Cell, RefCell}; /// /// thread_local! { -/// pub static FOO: Cell = Cell::new(1); +/// pub static FOO: Cell = const { Cell::new(1) }; /// /// static BAR: RefCell> = RefCell::new(vec![1.0, 2.0]); /// } @@ -394,7 +395,7 @@ impl LocalKey> { /// use std::cell::Cell; /// /// thread_local! { - /// static X: Cell = Cell::new(1); + /// static X: Cell = const { Cell::new(1) }; /// } /// /// assert_eq!(X.get(), 1); @@ -423,7 +424,7 @@ impl LocalKey> { /// use std::cell::Cell; /// /// thread_local! { - /// static X: Cell> = Cell::new(Some(1)); + /// static X: Cell> = const { Cell::new(Some(1)) }; /// } /// /// assert_eq!(X.take(), Some(1)); @@ -453,7 +454,7 @@ impl LocalKey> { /// use std::cell::Cell; /// /// thread_local! { - /// static X: Cell = Cell::new(1); + /// static X: Cell = const { Cell::new(1) }; /// } /// /// assert_eq!(X.replace(2), 1); From ad566646cf02163373c5d60033be07c2d903ef90 Mon Sep 17 00:00:00 2001 From: Kornel Date: Mon, 17 Feb 2025 17:22:01 +0000 Subject: [PATCH 202/255] Use faster thread_local in current_thread_id() --- library/std/src/sync/mpmc/mod.rs | 3 +++ library/std/src/sync/mpmc/tests.rs | 14 ++++++++++++++ library/std/src/sync/mpmc/waker.rs | 2 +- 3 files changed, 18 insertions(+), 1 deletion(-) create mode 100644 library/std/src/sync/mpmc/tests.rs diff --git a/library/std/src/sync/mpmc/mod.rs b/library/std/src/sync/mpmc/mod.rs index 8caa2dcfad99..8712332dd276 100644 --- a/library/std/src/sync/mpmc/mod.rs +++ b/library/std/src/sync/mpmc/mod.rs @@ -1382,3 +1382,6 @@ impl fmt::Debug for Receiver { f.pad("Receiver { .. }") } } + +#[cfg(test)] +mod tests; diff --git a/library/std/src/sync/mpmc/tests.rs b/library/std/src/sync/mpmc/tests.rs new file mode 100644 index 000000000000..6deb4dc2fe0c --- /dev/null +++ b/library/std/src/sync/mpmc/tests.rs @@ -0,0 +1,14 @@ +// Ensure that thread_local init with `const { 0 }` still has unique address at run-time +#[test] +fn waker_current_thread_id() { + let first = super::waker::current_thread_id(); + let t = crate::thread::spawn(move || { + let second = super::waker::current_thread_id(); + assert_ne!(first, second); + assert_eq!(second, super::waker::current_thread_id()); + }); + + assert_eq!(first, super::waker::current_thread_id()); + t.join().unwrap(); + assert_eq!(first, super::waker::current_thread_id()); +} diff --git a/library/std/src/sync/mpmc/waker.rs b/library/std/src/sync/mpmc/waker.rs index 1895466f95d4..f5e764e69bd6 100644 --- a/library/std/src/sync/mpmc/waker.rs +++ b/library/std/src/sync/mpmc/waker.rs @@ -204,6 +204,6 @@ impl Drop for SyncWaker { pub fn current_thread_id() -> usize { // `u8` is not drop so this variable will be available during thread destruction, // whereas `thread::current()` would not be - thread_local! { static DUMMY: u8 = 0 } + thread_local! { static DUMMY: u8 = const { 0 } } DUMMY.with(|x| (x as *const u8).addr()) } From 4742dbc765165dc0ece5e350b3527e697ff871dc Mon Sep 17 00:00:00 2001 From: Kornel Date: Mon, 17 Feb 2025 17:04:36 +0000 Subject: [PATCH 203/255] Use faster thread_local! for stdout --- library/std/src/io/stdio.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/library/std/src/io/stdio.rs b/library/std/src/io/stdio.rs index 661c422811ab..017862c7f3aa 100644 --- a/library/std/src/io/stdio.rs +++ b/library/std/src/io/stdio.rs @@ -20,7 +20,7 @@ type LocalStream = Arc>>; thread_local! { /// Used by the test crate to capture the output of the print macros and panics. - static OUTPUT_CAPTURE: Cell> = { + static OUTPUT_CAPTURE: Cell> = const { Cell::new(None) } } From 7b74920388f71379662962acdc12233b9458be03 Mon Sep 17 00:00:00 2001 From: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Thu, 13 Feb 2025 17:33:14 +0000 Subject: [PATCH 204/255] Stacker now handles miri using a noop impl itself --- Cargo.lock | 8 ++++---- compiler/rustc_data_structures/src/stack.rs | 12 ------------ 2 files changed, 4 insertions(+), 16 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index c31fed86bc8c..6bc88fb7a6dc 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -2751,9 +2751,9 @@ dependencies = [ [[package]] name = "psm" -version = "0.1.24" +version = "0.1.25" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "200b9ff220857e53e184257720a14553b2f4aa02577d2ed9842d45d4b9654810" +checksum = "f58e5423e24c18cc840e1c98370b3993c6649cd1678b4d24318bcf0a083cbe88" dependencies = [ "cc", ] @@ -4947,9 +4947,9 @@ dependencies = [ [[package]] name = "stacker" -version = "0.1.17" +version = "0.1.18" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "799c883d55abdb5e98af1a7b3f23b9b6de8ecada0ecac058672d7635eb48ca7b" +checksum = "1d08feb8f695b465baed819b03c128dc23f57a694510ab1f06c77f763975685e" dependencies = [ "cc", "cfg-if", diff --git a/compiler/rustc_data_structures/src/stack.rs b/compiler/rustc_data_structures/src/stack.rs index 102b36409115..3d6d00034832 100644 --- a/compiler/rustc_data_structures/src/stack.rs +++ b/compiler/rustc_data_structures/src/stack.rs @@ -17,18 +17,6 @@ const STACK_PER_RECURSION: usize = 16 * 1024 * 1024; // 16MB /// /// Should not be sprinkled around carelessly, as it causes a little bit of overhead. #[inline] -#[cfg(not(miri))] pub fn ensure_sufficient_stack(f: impl FnOnce() -> R) -> R { stacker::maybe_grow(RED_ZONE, STACK_PER_RECURSION, f) } - -/// Grows the stack on demand to prevent stack overflow. Call this in strategic locations -/// to "break up" recursive calls. E.g. almost any call to `visit_expr` or equivalent can benefit -/// from this. -/// -/// Should not be sprinkled around carelessly, as it causes a little bit of overhead. -#[cfg(miri)] -#[inline] -pub fn ensure_sufficient_stack(f: impl FnOnce() -> R) -> R { - f() -} From 2fc920549be505e419ed4458695fb088c30ba3d7 Mon Sep 17 00:00:00 2001 From: bjorn3 <17426603+bjorn3@users.noreply.github.com> Date: Fri, 21 Feb 2025 14:59:53 +0000 Subject: [PATCH 205/255] Always allow reusing cratenum in CrateLoader::load The only case where can_reuse_cratenum could have been false in the past are rustc plugins, support for which has been removed over a year ago now. Nowadays the only case where locator.tuple is not target_triple is when loading a proc macro, in which case we also set can_reuse_cratenum to true. As such it is always true and we can remove some dead code. --- compiler/rustc_metadata/src/creader.rs | 30 ++++++++------------------ 1 file changed, 9 insertions(+), 21 deletions(-) diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index c2dda21bb72e..4351d340013c 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -762,29 +762,17 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { // against a hash, we could load a crate which has the same hash // as an already loaded crate. If this is the case prevent // duplicates by just using the first crate. - // - // Note that we only do this for target triple crates, though, as we - // don't want to match a host crate against an equivalent target one - // already loaded. let root = library.metadata.get_root(); - // FIXME: why is this condition necessary? It was adding in #33625 but I - // don't know why and the original author doesn't remember ... - let can_reuse_cratenum = - locator.tuple == self.sess.opts.target_triple || locator.is_proc_macro; - Ok(Some(if can_reuse_cratenum { - let mut result = LoadResult::Loaded(library); - for (cnum, data) in self.cstore.iter_crate_data() { - if data.name() == root.name() && root.hash() == data.hash() { - assert!(locator.hash.is_none()); - info!("load success, going to previous cnum: {}", cnum); - result = LoadResult::Previous(cnum); - break; - } + let mut result = LoadResult::Loaded(library); + for (cnum, data) in self.cstore.iter_crate_data() { + if data.name() == root.name() && root.hash() == data.hash() { + assert!(locator.hash.is_none()); + info!("load success, going to previous cnum: {}", cnum); + result = LoadResult::Previous(cnum); + break; } - result - } else { - LoadResult::Loaded(library) - })) + } + Ok(Some(result)) } /// Go through the crate metadata and load any crates that it references. From ad962ed131aa3bfebc55b381bc93bae93667d3ee Mon Sep 17 00:00:00 2001 From: Folkert de Vries Date: Fri, 21 Feb 2025 16:50:23 +0100 Subject: [PATCH 206/255] stabilize `unsigned_is_multiple_of` --- library/core/src/num/uint_macros.rs | 4 ++-- library/coretests/tests/lib.rs | 1 - src/tools/miri/src/lib.rs | 1 - 3 files changed, 2 insertions(+), 4 deletions(-) diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs index 74d3ae699f66..6139d8540dea 100644 --- a/library/core/src/num/uint_macros.rs +++ b/library/core/src/num/uint_macros.rs @@ -3274,14 +3274,14 @@ macro_rules! uint_impl { /// Basic usage: /// /// ``` - /// #![feature(unsigned_is_multiple_of)] #[doc = concat!("assert!(6_", stringify!($SelfT), ".is_multiple_of(2));")] #[doc = concat!("assert!(!5_", stringify!($SelfT), ".is_multiple_of(2));")] /// #[doc = concat!("assert!(0_", stringify!($SelfT), ".is_multiple_of(0));")] #[doc = concat!("assert!(!6_", stringify!($SelfT), ".is_multiple_of(0));")] /// ``` - #[unstable(feature = "unsigned_is_multiple_of", issue = "128101")] + #[stable(feature = "unsigned_is_multiple_of", since = "CURRENT_RUSTC_VERSION")] + #[rustc_const_stable(feature = "unsigned_is_multiple_of", since = "CURRENT_RUSTC_VERSION")] #[must_use] #[inline] #[rustc_inherit_overflow_checks] diff --git a/library/coretests/tests/lib.rs b/library/coretests/tests/lib.rs index 25c7d10e0bd8..08577eeeb627 100644 --- a/library/coretests/tests/lib.rs +++ b/library/coretests/tests/lib.rs @@ -87,7 +87,6 @@ #![feature(try_blocks)] #![feature(try_find)] #![feature(try_trait_v2)] -#![feature(unsigned_is_multiple_of)] #![feature(unsize)] #![feature(unsized_tuple_coercion)] #![feature(unwrap_infallible)] diff --git a/src/tools/miri/src/lib.rs b/src/tools/miri/src/lib.rs index 44e4f1a29321..3b89f4a20d79 100644 --- a/src/tools/miri/src/lib.rs +++ b/src/tools/miri/src/lib.rs @@ -16,7 +16,6 @@ #![feature(unqualified_local_imports)] #![feature(derive_coerce_pointee)] #![feature(arbitrary_self_types)] -#![feature(unsigned_is_multiple_of)] #![feature(extract_if)] // Configure clippy and other lints #![allow( From 12a0e2b4dd1e93d7f68c9bdaf4ada618c9cdfb38 Mon Sep 17 00:00:00 2001 From: bit-aloo Date: Fri, 21 Feb 2025 21:09:31 +0530 Subject: [PATCH 207/255] bootstrap: add doc for vendor build step --- src/bootstrap/src/core/build_steps/vendor.rs | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/vendor.rs b/src/bootstrap/src/core/build_steps/vendor.rs index 410dbc04f030..984c70955d7d 100644 --- a/src/bootstrap/src/core/build_steps/vendor.rs +++ b/src/bootstrap/src/core/build_steps/vendor.rs @@ -1,9 +1,14 @@ +//! Handles the vendoring process for the bootstrap system. +//! +//! This module ensures that all required Cargo dependencies are gathered +//! and stored in the `/` directory. use std::path::PathBuf; use crate::core::build_steps::tool::SUBMODULES_FOR_RUSTBOOK; use crate::core::builder::{Builder, RunConfig, ShouldRun, Step}; use crate::utils::exec::command; +/// The name of the directory where vendored dependencies are stored. pub const VENDOR_DIR: &str = "vendor"; /// Returns the cargo workspaces to vendor for `x vendor` and dist tarballs. @@ -29,11 +34,19 @@ pub fn default_paths_to_vendor(builder: &Builder<'_>) -> Vec<(PathBuf, Vec<&'sta .collect() } +/// Defines the vendoring step in the bootstrap process. +/// +/// This step executes `cargo vendor` to collect all dependencies +/// and store them in the `/` directory. #[derive(Debug, Clone, Hash, PartialEq, Eq)] pub(crate) struct Vendor { + /// Additional paths to synchronize during vendoring. pub(crate) sync_args: Vec, + /// Determines whether vendored dependencies use versioned directories. pub(crate) versioned_dirs: bool, + /// The root directory of the source code. pub(crate) root_dir: PathBuf, + /// The target directory for storing vendored dependencies. pub(crate) output_dir: PathBuf, } @@ -55,6 +68,10 @@ impl Step for Vendor { }); } + /// Executes the vendoring process. + /// + /// This function runs `cargo vendor` and ensures all required submodules + /// are initialized before vendoring begins. fn run(self, builder: &Builder<'_>) -> Self::Output { builder.info(&format!("Vendoring sources to {:?}", self.root_dir)); @@ -94,6 +111,7 @@ impl Step for Vendor { } } +/// Stores the result of the vendoring step. #[derive(Debug, Clone)] pub(crate) struct VendorOutput { pub(crate) config: String, From 1412cfc987b2b6691367c2e7428c083bb207d722 Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Wed, 29 Jan 2025 23:54:15 +0000 Subject: [PATCH 208/255] Inject `compiler_builtins` during postprocessing rather than via AST `compiler_builtins` is currently injected as `extern crate compiler_builtins as _`. This has made gating via diagnostics difficult because it appears in the crate graph as a non-private dependency, and there isn't an easy way to differentiate between the injected AST and user-specified `extern crate compiler_builtins`. Resolve this by injecting `compiler_builtins` during postprocessing rather than early in the AST. Most of the time this isn't even needed because it shows up in `std` or `core`'s crate graph, but injection is still needed to ensure `#![no_core]` works correctly. A similar change was attempted at [1] but this encountered errors building `proc_macro` and `rustc-std-workspace-std`. Similar failures showed up while working on this patch, which were traced back to `compiler_builtins` showing up in the graph twice (once via dependency and once via injection). This is resolved by not injecting if a `#![compiler_builtins]` crate already exists. [1]: https://github.com/rust-lang/rust/pull/113634 --- .../src/standard_library_imports.rs | 49 +++++-------------- compiler/rustc_metadata/messages.ftl | 3 ++ compiler/rustc_metadata/src/creader.rs | 38 ++++++++++++++ compiler/rustc_metadata/src/errors.rs | 6 +++ compiler/rustc_metadata/src/rmeta/decoder.rs | 4 ++ tests/ui/extern-flag/empty-extern-arg.stderr | 8 +-- .../issue-59191-replace-root-with-fn.rs | 3 +- .../issue-59191-replace-root-with-fn.stderr | 15 +++--- tests/ui/proc-macro/meta-macro-hygiene.stdout | 1 - .../nonterminal-token-hygiene.stdout | 1 - 10 files changed, 74 insertions(+), 54 deletions(-) diff --git a/compiler/rustc_builtin_macros/src/standard_library_imports.rs b/compiler/rustc_builtin_macros/src/standard_library_imports.rs index 1a3f4d2d4490..6933ca09349a 100644 --- a/compiler/rustc_builtin_macros/src/standard_library_imports.rs +++ b/compiler/rustc_builtin_macros/src/standard_library_imports.rs @@ -19,16 +19,12 @@ pub fn inject( let edition = sess.psess.edition; // the first name in this list is the crate name of the crate with the prelude - let names: &[Symbol] = if attr::contains_name(pre_configured_attrs, sym::no_core) { + let name: Symbol = if attr::contains_name(pre_configured_attrs, sym::no_core) { return 0; } else if attr::contains_name(pre_configured_attrs, sym::no_std) { - if attr::contains_name(pre_configured_attrs, sym::compiler_builtins) { - &[sym::core] - } else { - &[sym::core, sym::compiler_builtins] - } + sym::core } else { - &[sym::std] + sym::std }; let expn_id = resolver.expansion_for_ast_pass( @@ -43,36 +39,16 @@ pub fn inject( let ecfg = ExpansionConfig::default("std_lib_injection".to_string(), features); let cx = ExtCtxt::new(sess, ecfg, resolver, None); - // .rev() to preserve ordering above in combination with insert(0, ...) - for &name in names.iter().rev() { - let ident_span = if edition >= Edition2018 { span } else { call_site }; - let item = if name == sym::compiler_builtins { - // compiler_builtins is a private implementation detail. We only - // need to insert it into the crate graph for linking and should not - // expose any of its public API. - // - // FIXME(#113634) We should inject this during post-processing like - // we do for the panic runtime, profiler runtime, etc. - cx.item( - span, - Ident::new(kw::Underscore, ident_span), - thin_vec![], - ast::ItemKind::ExternCrate(Some(name)), - ) - } else { - cx.item( - span, - Ident::new(name, ident_span), - thin_vec![cx.attr_word(sym::macro_use, span)], - ast::ItemKind::ExternCrate(None), - ) - }; - krate.items.insert(0, item); - } + let ident_span = if edition >= Edition2018 { span } else { call_site }; - // The crates have been injected, the assumption is that the first one is - // the one with the prelude. - let name = names[0]; + let item = cx.item( + span, + Ident::new(name, ident_span), + thin_vec![cx.attr_word(sym::macro_use, span)], + ast::ItemKind::ExternCrate(None), + ); + + krate.items.insert(0, item); let root = (edition == Edition2015).then_some(kw::PathRoot); @@ -88,6 +64,7 @@ pub fn inject( .map(|&symbol| Ident::new(symbol, span)) .collect(); + // Inject the relevant crate's prelude. let use_item = cx.item( span, Ident::empty(), diff --git a/compiler/rustc_metadata/messages.ftl b/compiler/rustc_metadata/messages.ftl index 6fc84b06647f..df0a25712cca 100644 --- a/compiler/rustc_metadata/messages.ftl +++ b/compiler/rustc_metadata/messages.ftl @@ -47,6 +47,9 @@ metadata_crate_dep_rustc_driver = metadata_crate_location_unknown_type = extern location for {$crate_name} is of an unknown type: {$path} +metadata_crate_not_compiler_builtins = + the crate `{$crate_name}` resolved as `compiler_builtins` but is not `#![compiler_builtins]` + metadata_crate_not_panic_runtime = the crate `{$crate_name}` is not a panic runtime diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index 582572586cf1..a935bc3662da 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -1118,6 +1118,43 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { } } + /// Inject the `compiler_builtins` crate if it is not already in the graph. + fn inject_compiler_builtins(&mut self, krate: &ast::Crate) { + // `compiler_builtins` does not get extern builtins, nor do `#![no_core]` crates + if attr::contains_name(&krate.attrs, sym::compiler_builtins) + || attr::contains_name(&krate.attrs, sym::no_core) + { + info!("`compiler_builtins` unneeded"); + return; + } + + // If a `#![compiler_builtins]` crate already exists, avoid injecting it twice. This is + // the common case since usually it appears as a dependency of `std` or `alloc`. + for (cnum, cmeta) in self.cstore.iter_crate_data() { + if cmeta.is_compiler_builtins() { + info!("`compiler_builtins` already exists (cnum = {cnum}); skipping injection"); + return; + } + } + + // `compiler_builtins` is not yet in the graph; inject it. Error on resolution failure. + let Some(cnum) = self.resolve_crate( + sym::compiler_builtins, + krate.spans.inner_span.shrink_to_lo(), + CrateDepKind::Explicit, + CrateOrigin::Injected, + ) else { + info!("`compiler_builtins` not resolved"); + return; + }; + + // Sanity check that the loaded crate is `#![compiler_builtins]` + let cmeta = self.cstore.get_crate_data(cnum); + if !cmeta.is_compiler_builtins() { + self.dcx().emit_err(errors::CrateNotCompilerBuiltins { crate_name: cmeta.name() }); + } + } + fn inject_dependency_if( &mut self, krate: CrateNum, @@ -1227,6 +1264,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { } pub fn postprocess(&mut self, krate: &ast::Crate) { + self.inject_compiler_builtins(krate); self.inject_forced_externs(); self.inject_profiler_runtime(); self.inject_allocator_crate(krate); diff --git a/compiler/rustc_metadata/src/errors.rs b/compiler/rustc_metadata/src/errors.rs index a77f9bc623b5..2ad6389c0b4a 100644 --- a/compiler/rustc_metadata/src/errors.rs +++ b/compiler/rustc_metadata/src/errors.rs @@ -332,6 +332,12 @@ pub struct CrateNotPanicRuntime { pub crate_name: Symbol, } +#[derive(Diagnostic)] +#[diag(metadata_crate_not_compiler_builtins)] +pub struct CrateNotCompilerBuiltins { + pub crate_name: Symbol, +} + #[derive(Diagnostic)] #[diag(metadata_no_panic_strategy)] pub struct NoPanicStrategy { diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index 0516179f62ca..ef0267eb3d90 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -1948,6 +1948,10 @@ impl CrateMetadata { self.root.profiler_runtime } + pub(crate) fn is_compiler_builtins(&self) -> bool { + self.root.compiler_builtins + } + pub(crate) fn needs_allocator(&self) -> bool { self.root.needs_allocator } diff --git a/tests/ui/extern-flag/empty-extern-arg.stderr b/tests/ui/extern-flag/empty-extern-arg.stderr index b9a128e02e16..79efcc5d8b04 100644 --- a/tests/ui/extern-flag/empty-extern-arg.stderr +++ b/tests/ui/extern-flag/empty-extern-arg.stderr @@ -7,11 +7,5 @@ error: unwinding panics are not supported without std = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem -error: requires `sized` lang_item - --> $DIR/empty-extern-arg.rs:6:11 - | -LL | fn main() {} - | ^^ - -error: aborting due to 4 previous errors +error: aborting due to 3 previous errors diff --git a/tests/ui/proc-macro/issue-59191-replace-root-with-fn.rs b/tests/ui/proc-macro/issue-59191-replace-root-with-fn.rs index c1b55fd99dfa..6afafb7114a6 100644 --- a/tests/ui/proc-macro/issue-59191-replace-root-with-fn.rs +++ b/tests/ui/proc-macro/issue-59191-replace-root-with-fn.rs @@ -3,7 +3,8 @@ //@ edition:2018 //@ proc-macro: issue-59191.rs -//@ error-pattern: requires `sized` lang_item +//@ needs-unwind (affects error output) +//@ error-pattern: error: `#[panic_handler]` function required #![feature(custom_inner_attributes)] #![issue_59191::no_main] diff --git a/tests/ui/proc-macro/issue-59191-replace-root-with-fn.stderr b/tests/ui/proc-macro/issue-59191-replace-root-with-fn.stderr index 2d0c92ff2974..3cd98d9c72b8 100644 --- a/tests/ui/proc-macro/issue-59191-replace-root-with-fn.stderr +++ b/tests/ui/proc-macro/issue-59191-replace-root-with-fn.stderr @@ -1,10 +1,9 @@ -error: requires `sized` lang_item - --> $DIR/issue-59191-replace-root-with-fn.rs:9:1 - | -LL | #![issue_59191::no_main] - | ^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: this error originates in the attribute macro `issue_59191::no_main` (in Nightly builds, run with -Z macro-backtrace for more info) +error: `#[panic_handler]` function required, but not found -error: aborting due to 1 previous error +error: unwinding panics are not supported without std + | + = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding + = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem + +error: aborting due to 2 previous errors diff --git a/tests/ui/proc-macro/meta-macro-hygiene.stdout b/tests/ui/proc-macro/meta-macro-hygiene.stdout index fae8446515af..1ee7179e84c0 100644 --- a/tests/ui/proc-macro/meta-macro-hygiene.stdout +++ b/tests/ui/proc-macro/meta-macro-hygiene.stdout @@ -20,7 +20,6 @@ Respanned: TokenStream [Ident { ident: "$crate", span: $DIR/auxiliary/make-macro use core /* 0#1 */::prelude /* 0#1 */::rust_2018 /* 0#1 */::*; #[macro_use /* 0#1 */] extern crate core /* 0#1 */; -extern crate compiler_builtins /* NNN */ as _ /* 0#1 */; // Don't load unnecessary hygiene information from std extern crate std /* 0#0 */; diff --git a/tests/ui/proc-macro/nonterminal-token-hygiene.stdout b/tests/ui/proc-macro/nonterminal-token-hygiene.stdout index e7dda7d3c160..c80a33206fb4 100644 --- a/tests/ui/proc-macro/nonterminal-token-hygiene.stdout +++ b/tests/ui/proc-macro/nonterminal-token-hygiene.stdout @@ -39,7 +39,6 @@ PRINT-BANG INPUT (DEBUG): TokenStream [ use ::core /* 0#1 */::prelude /* 0#1 */::rust_2015 /* 0#1 */::*; #[macro_use /* 0#1 */] extern crate core /* 0#2 */; -extern crate compiler_builtins /* NNN */ as _ /* 0#2 */; // Don't load unnecessary hygiene information from std extern crate std /* 0#0 */; From cb1d076d42e9285488436688b8879225ab6db80e Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Tue, 14 Jan 2025 20:04:59 +0000 Subject: [PATCH 209/255] Partially revert ed63539282 ("Mark dependencies ... private by default") Remove the portion of ed63539282 that automatically sets crates private based on whether they are dependencies of `std`. Instead, this is controlled by dependency configuration in `Cargo.toml`. --- compiler/rustc_metadata/src/creader.rs | 18 +----------------- 1 file changed, 1 insertion(+), 17 deletions(-) diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index a935bc3662da..b94e32e17d41 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -32,7 +32,7 @@ use rustc_session::lint::{self, BuiltinLintDiag}; use rustc_session::output::validate_crate_name; use rustc_session::search_paths::PathKind; use rustc_span::edition::Edition; -use rustc_span::{DUMMY_SP, Ident, STDLIB_STABLE_CRATES, Span, Symbol, sym}; +use rustc_span::{DUMMY_SP, Ident, Span, Symbol, sym}; use rustc_target::spec::{PanicStrategy, Target, TargetTuple}; use tracing::{debug, info, trace}; @@ -533,27 +533,11 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { private_dep: Option, origin: CrateOrigin<'_>, ) -> bool { - // Standard library crates are never private. - if STDLIB_STABLE_CRATES.contains(&name) { - tracing::info!("returning false for {name} is private"); - return false; - } - if matches!(origin, CrateOrigin::Injected) { return true; } let extern_private = self.sess.opts.externs.get(name.as_str()).map(|e| e.is_private_dep); - - // Any descendants of `std` should be private. These crates are usually not marked - // private in metadata, so we ignore that field. - if extern_private.is_none() - && let Some(dep) = origin.dep_root() - && STDLIB_STABLE_CRATES.contains(&dep.name) - { - return true; - } - match (extern_private, private_dep) { // Explicit non-private via `--extern`, explicit non-private from metadata, or // unspecified with default to public. From 8c1b49d5e92c035661459063a645b78a47b6346a Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Tue, 28 Jan 2025 22:25:23 +0000 Subject: [PATCH 210/255] Use `public-dependencies` in all sysroot crates In [1], most dependencies of `std` and other sysroot crates were marked private, but this did not happen for `alloc` and `test`. Update these here, marking public standard library crates as the only non-private dependencies. [1]: https://github.com/rust-lang/rust/pull/111076 --- ...stdlib-Disable-f16-and-f128-in-compiler-builtins.patch | 2 +- library/alloc/Cargo.toml | 4 +++- library/sysroot/Cargo.toml | 8 +++++--- library/test/Cargo.toml | 6 ++++-- 4 files changed, 13 insertions(+), 7 deletions(-) diff --git a/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch b/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch index e3a9512dda9c..eb1fc4b0ad59 100644 --- a/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch +++ b/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch @@ -15,7 +15,7 @@ index 7165c3e48af..968552ad435 100644 edition = "2021" [dependencies] - core = { path = "../core" } + core = { path = "../core", public = true } -compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std'] } +compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std', 'no-f16-f128'] } diff --git a/library/alloc/Cargo.toml b/library/alloc/Cargo.toml index c1d7f324f177..395cff13189d 100644 --- a/library/alloc/Cargo.toml +++ b/library/alloc/Cargo.toml @@ -1,3 +1,5 @@ +cargo-features = ["public-dependency"] + [package] name = "alloc" version = "0.0.0" @@ -9,7 +11,7 @@ autobenches = false edition = "2021" [dependencies] -core = { path = "../core" } +core = { path = "../core", public = true } compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std'] } [dev-dependencies] diff --git a/library/sysroot/Cargo.toml b/library/sysroot/Cargo.toml index aa6c3dc32e2b..45a9eda445df 100644 --- a/library/sysroot/Cargo.toml +++ b/library/sysroot/Cargo.toml @@ -1,3 +1,5 @@ +cargo-features = ["public-dependency"] + [package] name = "sysroot" version = "0.0.0" @@ -5,10 +7,10 @@ edition = "2021" # this is a dummy crate to ensure that all required crates appear in the sysroot [dependencies] -proc_macro = { path = "../proc_macro" } +proc_macro = { path = "../proc_macro", public = true } profiler_builtins = { path = "../profiler_builtins", optional = true } -std = { path = "../std" } -test = { path = "../test" } +std = { path = "../std", public = true } +test = { path = "../test", public = true } # Forward features to the `std` crate as necessary [features] diff --git a/library/test/Cargo.toml b/library/test/Cargo.toml index 75cc7c00e389..241ef324b008 100644 --- a/library/test/Cargo.toml +++ b/library/test/Cargo.toml @@ -1,3 +1,5 @@ +cargo-features = ["public-dependency"] + [package] name = "test" version = "0.0.0" @@ -5,8 +7,8 @@ edition = "2021" [dependencies] getopts = { version = "0.2.21", features = ['rustc-dep-of-std'] } -std = { path = "../std" } -core = { path = "../core" } +std = { path = "../std", public = true } +core = { path = "../core", public = true } [target.'cfg(not(all(windows, target_env = "msvc")))'.dependencies] libc = { version = "0.2.150", default-features = false } From aca5b5dd5260d4e2c1bf584fc6ba36b5fba239cb Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Tue, 28 Jan 2025 23:20:36 +0000 Subject: [PATCH 211/255] If the parent dependency is private, treat dependents as private Currently, marking a dependency private does not automatically make all its child dependencies private. Resolve this by making its children private by default as well. This also resolves some FIXMEs for tests that are intended to fail but previously passed. [1]: https://github.com/rust-lang/rust/pull/135501#issuecomment-2620242419 --- compiler/rustc_metadata/src/creader.rs | 31 ++++++++++++++++--- .../pub-priv-dep/reexport_from_priv.rs | 3 +- .../pub-priv-dep/reexport_from_priv.stderr | 14 +++++++++ .../privacy/pub-priv-dep/shared_indirect.rs | 3 +- .../pub-priv-dep/shared_indirect.stderr | 14 +++++++++ 5 files changed, 56 insertions(+), 9 deletions(-) create mode 100644 tests/ui/privacy/pub-priv-dep/reexport_from_priv.stderr create mode 100644 tests/ui/privacy/pub-priv-dep/shared_indirect.stderr diff --git a/compiler/rustc_metadata/src/creader.rs b/compiler/rustc_metadata/src/creader.rs index b94e32e17d41..58ff2425748f 100644 --- a/compiler/rustc_metadata/src/creader.rs +++ b/compiler/rustc_metadata/src/creader.rs @@ -168,7 +168,10 @@ impl<'a> std::fmt::Debug for CrateDump<'a> { enum CrateOrigin<'a> { /// This crate was a dependency of another crate. IndirectDependency { + /// Where this dependency was included from. dep_root: &'a CratePaths, + /// True if the parent is private, meaning the dependent should also be private. + parent_private: bool, /// Dependency info about this crate. dep: &'a CrateDep, }, @@ -194,6 +197,17 @@ impl<'a> CrateOrigin<'a> { _ => None, } } + + /// `Some(true)` if the dependency is private or its parent is private, `Some(false)` if the + /// dependency is not private, `None` if it could not be determined. + fn private_dep(&self) -> Option { + match self { + CrateOrigin::IndirectDependency { parent_private, dep, .. } => { + Some(dep.is_private || *parent_private) + } + _ => None, + } + } } impl CStore { @@ -585,7 +599,8 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { &crate_paths }; - let cnum_map = self.resolve_crate_deps(dep_root, &crate_root, &metadata, cnum, dep_kind)?; + let cnum_map = + self.resolve_crate_deps(dep_root, &crate_root, &metadata, cnum, dep_kind, private_dep)?; let raw_proc_macros = if crate_root.is_proc_macro_crate() { let temp_root; @@ -722,7 +737,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { let host_hash = dep.map(|d| d.host_hash).flatten(); let extra_filename = dep.map(|d| &d.extra_filename[..]); let path_kind = if dep.is_some() { PathKind::Dependency } else { PathKind::Crate }; - let private_dep = dep.map(|d| d.is_private); + let private_dep = origin.private_dep(); let result = if let Some(cnum) = self.existing_match(name, hash, path_kind) { (LoadResult::Previous(cnum), None) @@ -819,6 +834,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { metadata: &MetadataBlob, krate: CrateNum, dep_kind: CrateDepKind, + parent_is_private: bool, ) -> Result { debug!( "resolving deps of external crate `{}` with dep root `{}`", @@ -837,11 +853,12 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { crate_num_map.push(krate); for dep in deps { info!( - "resolving dep `{}`->`{}` hash: `{}` extra filename: `{}`", + "resolving dep `{}`->`{}` hash: `{}` extra filename: `{}` private {}", crate_root.name(), dep.name, dep.hash, - dep.extra_filename + dep.extra_filename, + dep.is_private, ); let dep_kind = match dep_kind { CrateDepKind::MacrosOnly => CrateDepKind::MacrosOnly, @@ -850,7 +867,11 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> { let cnum = self.maybe_resolve_crate( dep.name, dep_kind, - CrateOrigin::IndirectDependency { dep_root, dep: &dep }, + CrateOrigin::IndirectDependency { + dep_root, + parent_private: parent_is_private, + dep: &dep, + }, )?; crate_num_map.push(cnum); } diff --git a/tests/ui/privacy/pub-priv-dep/reexport_from_priv.rs b/tests/ui/privacy/pub-priv-dep/reexport_from_priv.rs index 3c6e9825e728..136e0ceeb5be 100644 --- a/tests/ui/privacy/pub-priv-dep/reexport_from_priv.rs +++ b/tests/ui/privacy/pub-priv-dep/reexport_from_priv.rs @@ -1,6 +1,5 @@ //@ aux-crate:priv:reexport=reexport.rs //@ compile-flags: -Zunstable-options -//@ check-pass // Checks the behavior of a reexported item from a private dependency. @@ -9,7 +8,7 @@ extern crate reexport; -// FIXME: This should trigger. pub fn leaks_priv() -> reexport::Shared { + //~^ ERROR type `Shared` from private dependency 'shared' in public interface reexport::Shared } diff --git a/tests/ui/privacy/pub-priv-dep/reexport_from_priv.stderr b/tests/ui/privacy/pub-priv-dep/reexport_from_priv.stderr new file mode 100644 index 000000000000..f1573283ff2e --- /dev/null +++ b/tests/ui/privacy/pub-priv-dep/reexport_from_priv.stderr @@ -0,0 +1,14 @@ +error: type `Shared` from private dependency 'shared' in public interface + --> $DIR/reexport_from_priv.rs:11:1 + | +LL | pub fn leaks_priv() -> reexport::Shared { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +note: the lint level is defined here + --> $DIR/reexport_from_priv.rs:7:9 + | +LL | #![deny(exported_private_dependencies)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + diff --git a/tests/ui/privacy/pub-priv-dep/shared_indirect.rs b/tests/ui/privacy/pub-priv-dep/shared_indirect.rs index 34b624b4a1a4..2fe66ae80cf4 100644 --- a/tests/ui/privacy/pub-priv-dep/shared_indirect.rs +++ b/tests/ui/privacy/pub-priv-dep/shared_indirect.rs @@ -1,7 +1,6 @@ //@ aux-crate:priv:shared=shared.rs //@ aux-crate:priv:indirect1=indirect1.rs //@ compile-flags: -Zunstable-options -//@ check-pass // A shared dependency, where it is only indirectly public. // @@ -23,7 +22,7 @@ extern crate shared; extern crate indirect1; -// FIXME: This should trigger. pub fn leaks_priv() -> shared::Shared { + //~^ ERROR type `Shared` from private dependency 'shared' in public interface shared::Shared } diff --git a/tests/ui/privacy/pub-priv-dep/shared_indirect.stderr b/tests/ui/privacy/pub-priv-dep/shared_indirect.stderr new file mode 100644 index 000000000000..dbc534713d16 --- /dev/null +++ b/tests/ui/privacy/pub-priv-dep/shared_indirect.stderr @@ -0,0 +1,14 @@ +error: type `Shared` from private dependency 'shared' in public interface + --> $DIR/shared_indirect.rs:25:1 + | +LL | pub fn leaks_priv() -> shared::Shared { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | +note: the lint level is defined here + --> $DIR/shared_indirect.rs:20:9 + | +LL | #![deny(exported_private_dependencies)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: aborting due to 1 previous error + From 93925809eb2f4be76c7babcc7cdb73d10ef977bd Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Thu, 30 Jan 2025 02:52:39 +0000 Subject: [PATCH 212/255] Replace some instances of `pub` with `pub(crate)` The recent fixes to private dependencies exposed some cases in the UEFI module where private dependencies are exposed in a public interface. These do not need to be crate-public, so change them to `pub(crate)`. --- library/std/src/sys/pal/uefi/process.rs | 2 +- library/std/src/sys/pal/uefi/time.rs | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/library/std/src/sys/pal/uefi/process.rs b/library/std/src/sys/pal/uefi/process.rs index 9efe9a314f2e..c73a6350357a 100644 --- a/library/std/src/sys/pal/uefi/process.rs +++ b/library/std/src/sys/pal/uefi/process.rs @@ -388,7 +388,7 @@ mod uefi_command_internal { } } - pub fn start_image(&mut self) -> io::Result { + pub(crate) fn start_image(&mut self) -> io::Result { self.update_st_crc32()?; // Use our system table instead of the default one diff --git a/library/std/src/sys/pal/uefi/time.rs b/library/std/src/sys/pal/uefi/time.rs index 495ff2dc930e..c4ff3015ac60 100644 --- a/library/std/src/sys/pal/uefi/time.rs +++ b/library/std/src/sys/pal/uefi/time.rs @@ -84,7 +84,7 @@ pub(crate) mod system_time_internal { // This algorithm is based on the one described in the post // https://blog.reverberate.org/2020/05/12/optimizing-date-algorithms.html - pub const fn uefi_time_to_duration(t: r_efi::system::Time) -> Duration { + pub(crate) const fn uefi_time_to_duration(t: r_efi::system::Time) -> Duration { assert!(t.month <= 12); assert!(t.month != 0); From ef3c339f9ce35aaecf71114a6ec0f618f73dd520 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E8=AE=B8=E6=9D=B0=E5=8F=8B=20Jieyou=20Xu=20=28Joe=29?= <39484203+jieyouxu@users.noreply.github.com> Date: Mon, 3 Feb 2025 17:22:13 +0800 Subject: [PATCH 213/255] compiletest: introduce and use `--src-root` and `--src-test-suite-root` Instead of only having `--src-base` and `src_base` which *actually* refers to the directory containing the test suite and not the sources root. More importantly, kill off `find_rust_src_root` when we can simply pass that info from bootstrap. --- src/tools/compiletest/src/common.rs | 6 +- src/tools/compiletest/src/header.rs | 15 +--- src/tools/compiletest/src/header/tests.rs | 3 +- src/tools/compiletest/src/lib.rs | 69 ++++++++++++------- src/tools/compiletest/src/runtest.rs | 6 +- .../compiletest/src/runtest/debuginfo.rs | 29 +++----- src/tools/compiletest/src/runtest/js_doc.rs | 3 +- src/tools/compiletest/src/runtest/run_make.rs | 35 ++-------- src/tools/compiletest/src/runtest/rustdoc.rs | 5 +- 9 files changed, 74 insertions(+), 97 deletions(-) diff --git a/src/tools/compiletest/src/common.rs b/src/tools/compiletest/src/common.rs index 1614c35cb1ce..98ab7adf5a72 100644 --- a/src/tools/compiletest/src/common.rs +++ b/src/tools/compiletest/src/common.rs @@ -215,8 +215,10 @@ pub struct Config { /// `None` then these tests will be ignored. pub run_clang_based_tests_with: Option, - /// The directory containing the tests to run - pub src_base: PathBuf, + /// The directory containing the sources. + pub src_root: PathBuf, + /// The directory containing the test suite sources. Must be a subdirectory of `src_root`. + pub src_test_suite_root: PathBuf, /// The directory where programs should be built pub build_base: PathBuf, diff --git a/src/tools/compiletest/src/header.rs b/src/tools/compiletest/src/header.rs index 452a2e9a9d51..3bdf37a1f294 100644 --- a/src/tools/compiletest/src/header.rs +++ b/src/tools/compiletest/src/header.rs @@ -1026,19 +1026,6 @@ impl Config { } } - pub fn find_rust_src_root(&self) -> Option { - let mut path = self.src_base.clone(); - let path_postfix = Path::new("src/etc/lldb_batchmode.py"); - - while path.pop() { - if path.join(&path_postfix).is_file() { - return Some(path); - } - } - - None - } - fn parse_edition(&self, line: &str) -> Option { self.parse_name_value_directive(line, "edition") } @@ -1098,7 +1085,7 @@ fn expand_variables(mut value: String, config: &Config) -> String { } if value.contains(SRC_BASE) { - value = value.replace(SRC_BASE, &config.src_base.to_string_lossy()); + value = value.replace(SRC_BASE, &config.src_test_suite_root.to_str().unwrap()); } if value.contains(BUILD_BASE) { diff --git a/src/tools/compiletest/src/header/tests.rs b/src/tools/compiletest/src/header/tests.rs index c65f10a52bd5..c9536b7a19b7 100644 --- a/src/tools/compiletest/src/header/tests.rs +++ b/src/tools/compiletest/src/header/tests.rs @@ -153,7 +153,8 @@ impl ConfigBuilder { "--run-lib-path=", "--python=", "--jsondocck-path=", - "--src-base=", + "--src-root=", + "--src-test-suite-root=", "--build-base=", "--sysroot-base=", "--cc=c", diff --git a/src/tools/compiletest/src/lib.rs b/src/tools/compiletest/src/lib.rs index d0a83cab9cd9..979821701385 100644 --- a/src/tools/compiletest/src/lib.rs +++ b/src/tools/compiletest/src/lib.rs @@ -61,7 +61,8 @@ pub fn parse_config(args: Vec) -> Config { .optopt("", "jsondoclint-path", "path to jsondoclint to use for doc tests", "PATH") .optopt("", "run-clang-based-tests-with", "path to Clang executable", "PATH") .optopt("", "llvm-filecheck", "path to LLVM's FileCheck binary", "DIR") - .reqopt("", "src-base", "directory to scan for test files", "PATH") + .reqopt("", "src-root", "directory containing sources", "PATH") + .reqopt("", "src-test-suite-root", "directory containing test suite sources", "PATH") .reqopt("", "build-base", "directory to deposit test outputs", "PATH") .reqopt("", "sysroot-base", "directory containing the compiler sysroot", "PATH") .reqopt("", "stage", "stage number under test", "N") @@ -243,7 +244,6 @@ pub fn parse_config(args: Vec) -> Config { || header::extract_llvm_version_from_binary(&matches.opt_str("llvm-filecheck")?), ); - let src_base = opt_path(matches, "src-base"); let run_ignored = matches.opt_present("ignored"); let with_rustc_debug_assertions = matches.opt_present("with-rustc-debug-assertions"); let with_std_debug_assertions = matches.opt_present("with-std-debug-assertions"); @@ -300,6 +300,15 @@ pub fn parse_config(args: Vec) -> Config { None => panic!("`--stage` is required"), }; + let src_root = opt_path(matches, "src-root"); + let src_test_suite_root = opt_path(matches, "src-test-suite-root"); + assert!( + src_test_suite_root.starts_with(&src_root), + "`src-root` must be a parent of `src-test-suite-root`: `src-root`=`{}`, `src-test-suite-root` = `{}`", + src_root.display(), + src_test_suite_root.display() + ); + Config { bless: matches.opt_present("bless"), compile_lib_path: make_absolute(opt_path(matches, "compile-lib-path")), @@ -314,7 +323,10 @@ pub fn parse_config(args: Vec) -> Config { run_clang_based_tests_with: matches.opt_str("run-clang-based-tests-with"), llvm_filecheck: matches.opt_str("llvm-filecheck").map(PathBuf::from), llvm_bin_dir: matches.opt_str("llvm-bin-dir").map(PathBuf::from), - src_base, + + src_root, + src_test_suite_root, + build_base: opt_path(matches, "build-base"), sysroot_base: opt_path(matches, "sysroot-base"), @@ -422,7 +434,10 @@ pub fn log_config(config: &Config) { logv(c, format!("rustc_path: {:?}", config.rustc_path.display())); logv(c, format!("cargo_path: {:?}", config.cargo_path)); logv(c, format!("rustdoc_path: {:?}", config.rustdoc_path)); - logv(c, format!("src_base: {:?}", config.src_base.display())); + + logv(c, format!("src_root: {}", config.src_root.display())); + logv(c, format!("src_test_suite_root: {}", config.src_test_suite_root.display())); + logv(c, format!("build_base: {:?}", config.build_base.display())); logv(c, format!("stage: {}", config.stage)); logv(c, format!("stage_id: {}", config.stage_id)); @@ -620,20 +635,29 @@ struct TestCollector { /// regardless of whether any filters/tests were specified on the command-line, /// because filtering is handled later by libtest. pub fn collect_and_make_tests(config: Arc) -> Vec { - debug!("making tests from {:?}", config.src_base.display()); + debug!("making tests from {}", config.src_test_suite_root.display()); let common_inputs_stamp = common_inputs_stamp(&config); - let modified_tests = modified_tests(&config, &config.src_base).unwrap_or_else(|err| { - panic!("modified_tests got error from dir: {}, error: {}", config.src_base.display(), err) - }); + let modified_tests = + modified_tests(&config, &config.src_test_suite_root).unwrap_or_else(|err| { + panic!( + "modified_tests got error from dir: {}, error: {}", + config.src_test_suite_root.display(), + err + ) + }); let cache = HeadersCache::load(&config); let cx = TestCollectorCx { config, cache, common_inputs_stamp, modified_tests }; let mut collector = TestCollector { tests: vec![], found_path_stems: HashSet::new(), poisoned: false }; - collect_tests_from_dir(&cx, &mut collector, &cx.config.src_base, Path::new("")).unwrap_or_else( - |reason| panic!("Could not read tests from {}: {reason}", cx.config.src_base.display()), - ); + collect_tests_from_dir(&cx, &mut collector, &cx.config.src_test_suite_root, Path::new("")) + .unwrap_or_else(|reason| { + panic!( + "Could not read tests from {}: {reason}", + cx.config.src_test_suite_root.display() + ) + }); let TestCollector { tests, found_path_stems, poisoned } = collector; @@ -655,7 +679,7 @@ pub fn collect_and_make_tests(config: Arc) -> Vec { /// common to some subset of tests, and are hopefully unlikely to be modified /// while working on other tests.) fn common_inputs_stamp(config: &Config) -> Stamp { - let rust_src_dir = config.find_rust_src_root().expect("Could not find Rust source root"); + let src_root = &config.src_root; let mut stamp = Stamp::from_path(&config.rustc_path); @@ -670,17 +694,17 @@ fn common_inputs_stamp(config: &Config) -> Stamp { "src/etc/lldb_providers.py", ]; for file in &pretty_printer_files { - let path = rust_src_dir.join(file); + let path = src_root.join(file); stamp.add_path(&path); } - stamp.add_dir(&rust_src_dir.join("src/etc/natvis")); + stamp.add_dir(&src_root.join("src/etc/natvis")); stamp.add_dir(&config.run_lib_path); if let Some(ref rustdoc_path) = config.rustdoc_path { stamp.add_path(&rustdoc_path); - stamp.add_path(&rust_src_dir.join("src/etc/htmldocck.py")); + stamp.add_path(&src_root.join("src/etc/htmldocck.py")); } // Re-run coverage tests if the `coverage-dump` tool was modified, @@ -689,10 +713,10 @@ fn common_inputs_stamp(config: &Config) -> Stamp { stamp.add_path(coverage_dump_path) } - stamp.add_dir(&rust_src_dir.join("src/tools/run-make-support")); + stamp.add_dir(&src_root.join("src/tools/run-make-support")); // Compiletest itself. - stamp.add_dir(&rust_src_dir.join("src/tools/compiletest/")); + stamp.add_dir(&src_root.join("src/tools/compiletest")); stamp } @@ -933,10 +957,7 @@ fn files_related_to_test( } // `minicore.rs` test auxiliary: we need to make sure tests get rerun if this changes. - // - // FIXME(jieyouxu): untangle these paths, we should provide both a path to root `tests/` or - // `tests/auxiliary/` and the test suite in question. `src_base` is also a terrible name. - related.push(config.src_base.parent().unwrap().join("auxiliary").join("minicore.rs")); + related.push(config.src_root.join("tests").join("auxiliary").join("minicore.rs")); related } @@ -1026,10 +1047,8 @@ fn make_test_name( testpaths: &TestPaths, revision: Option<&str>, ) -> test::TestName { - // Print the name of the file, relative to the repository root. - // `src_base` looks like `/path/to/rust/tests/ui` - let root_directory = config.src_base.parent().unwrap().parent().unwrap(); - let path = testpaths.file.strip_prefix(root_directory).unwrap(); + // Print the name of the file, relative to the sources root. + let path = testpaths.file.strip_prefix(&config.src_root).unwrap(); let debugger = match config.debugger { Some(d) => format!("-{}", d), None => String::new(), diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs index 0e2da2b02ca0..536e19bc4933 100644 --- a/src/tools/compiletest/src/runtest.rs +++ b/src/tools/compiletest/src/runtest.rs @@ -1365,7 +1365,7 @@ impl<'test> TestCx<'test> { // // Note: avoid adding a subdirectory of an already filtered directory here, otherwise the // same slice of text will be double counted and the truncation might not happen. - add_path(&self.config.src_base); + add_path(&self.config.src_test_suite_root); add_path(&self.config.build_base); read2_abbreviated(child, &filter_paths_from_len).expect("failed to read output") @@ -1471,7 +1471,7 @@ impl<'test> TestCx<'test> { // Similarly, vendored sources shouldn't be shown when running from a dist tarball. rustc.arg("-Z").arg(format!( "ignore-directory-in-diagnostics-source-blocks={}", - self.config.find_rust_src_root().unwrap().join("vendor").display(), + self.config.src_root.join("vendor").to_str().unwrap(), )); // Optionally prevent default --sysroot if specified in test compile-flags. @@ -1632,7 +1632,7 @@ impl<'test> TestCx<'test> { if self.props.remap_src_base { rustc.arg(format!( "--remap-path-prefix={}={}", - self.config.src_base.display(), + self.config.src_test_suite_root.to_str().unwrap(), FAKE_SRC_BASE, )); } diff --git a/src/tools/compiletest/src/runtest/debuginfo.rs b/src/tools/compiletest/src/runtest/debuginfo.rs index b236b0675690..170b8a809968 100644 --- a/src/tools/compiletest/src/runtest/debuginfo.rs +++ b/src/tools/compiletest/src/runtest/debuginfo.rs @@ -257,11 +257,8 @@ impl TestCx<'_> { println!("Adb process is already finished."); } } else { - let rust_src_root = - self.config.find_rust_src_root().expect("Could not find Rust source root"); - let rust_pp_module_rel_path = Path::new("./src/etc"); - let rust_pp_module_abs_path = - rust_src_root.join(rust_pp_module_rel_path).to_str().unwrap().to_owned(); + let rust_pp_module_abs_path = self.config.src_root.join("src").join("etc"); + let rust_pp_module_abs_path = rust_pp_module_abs_path.to_str().unwrap(); // write debugger script let mut script_str = String::with_capacity(2048); script_str.push_str(&format!("set charset {}\n", Self::charset())); @@ -338,7 +335,7 @@ impl TestCx<'_> { let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { format!("{pp}:{rust_pp_module_abs_path}") } else { - rust_pp_module_abs_path + rust_pp_module_abs_path.to_string() }; gdb.args(debugger_opts).env("PYTHONPATH", pythonpath); @@ -407,11 +404,8 @@ impl TestCx<'_> { // Make LLDB emit its version, so we have it documented in the test output script_str.push_str("version\n"); - // Switch LLDB into "Rust mode" - let rust_src_root = - self.config.find_rust_src_root().expect("Could not find Rust source root"); - let rust_pp_module_rel_path = Path::new("./src/etc"); - let rust_pp_module_abs_path = rust_src_root.join(rust_pp_module_rel_path); + // Switch LLDB into "Rust mode". + let rust_pp_module_abs_path = self.config.src_root.join("src/etc"); script_str.push_str(&format!( "command script import {}/lldb_lookup.py\n", @@ -445,7 +439,7 @@ impl TestCx<'_> { let debugger_script = self.make_out_name("debugger.script"); // Let LLDB execute the script via lldb_batchmode.py - let debugger_run_result = self.run_lldb(&exe_file, &debugger_script, &rust_src_root); + let debugger_run_result = self.run_lldb(&exe_file, &debugger_script); if !debugger_run_result.status.success() { self.fatal_proc_rec("Error while running LLDB", &debugger_run_result); @@ -456,18 +450,13 @@ impl TestCx<'_> { } } - fn run_lldb( - &self, - test_executable: &Path, - debugger_script: &Path, - rust_src_root: &Path, - ) -> ProcRes { + fn run_lldb(&self, test_executable: &Path, debugger_script: &Path) -> ProcRes { // Prepare the lldb_batchmode which executes the debugger script - let lldb_script_path = rust_src_root.join("src/etc/lldb_batchmode.py"); + let lldb_script_path = self.config.src_root.join("src/etc/lldb_batchmode.py"); let pythonpath = if let Ok(pp) = std::env::var("PYTHONPATH") { format!("{pp}:{}", self.config.lldb_python_dir.as_ref().unwrap()) } else { - self.config.lldb_python_dir.as_ref().unwrap().to_string() + self.config.lldb_python_dir.clone().unwrap() }; self.run_command_to_procres( Command::new(&self.config.python) diff --git a/src/tools/compiletest/src/runtest/js_doc.rs b/src/tools/compiletest/src/runtest/js_doc.rs index a83bcd70c871..d630affbec10 100644 --- a/src/tools/compiletest/src/runtest/js_doc.rs +++ b/src/tools/compiletest/src/runtest/js_doc.rs @@ -9,12 +9,11 @@ impl TestCx<'_> { self.document(&out_dir, &self.testpaths); - let root = self.config.find_rust_src_root().unwrap(); let file_stem = self.testpaths.file.file_stem().and_then(|f| f.to_str()).expect("no file stem"); let res = self.run_command_to_procres( Command::new(&nodejs) - .arg(root.join("src/tools/rustdoc-js/tester.js")) + .arg(self.config.src_root.join("src/tools/rustdoc-js/tester.js")) .arg("--doc-folder") .arg(out_dir) .arg("--crate-name") diff --git a/src/tools/compiletest/src/runtest/run_make.rs b/src/tools/compiletest/src/runtest/run_make.rs index 16c46fc13390..74e6af36ea1d 100644 --- a/src/tools/compiletest/src/runtest/run_make.rs +++ b/src/tools/compiletest/src/runtest/run_make.rs @@ -21,8 +21,6 @@ impl TestCx<'_> { fn run_rmake_legacy_test(&self) { let cwd = env::current_dir().unwrap(); - let src_root = self.config.src_base.parent().unwrap().parent().unwrap(); - let src_root = cwd.join(&src_root); // FIXME(Zalathar): This should probably be `output_base_dir` to avoid // an unnecessary extra subdirectory, but since legacy Makefile tests @@ -51,7 +49,7 @@ impl TestCx<'_> { .stderr(Stdio::piped()) .env("TARGET", &self.config.target) .env("PYTHON", &self.config.python) - .env("S", src_root) + .env("S", &self.config.src_root) .env("RUST_BUILD_STAGE", &self.config.stage_id) .env("RUSTC", cwd.join(&self.config.rustc_path)) .env("TMPDIR", &tmpdir) @@ -181,28 +179,10 @@ impl TestCx<'_> { // library. // 2. We need to run the recipe binary. - // So we assume the rust-lang/rust project setup looks like the following (our `.` is the - // top-level directory, irrelevant entries to our purposes omitted): - // - // ``` - // . // <- `source_root` - // ├── build/ // <- `build_root` - // ├── compiler/ - // ├── library/ - // ├── src/ - // │ └── tools/ - // │ └── run_make_support/ - // └── tests - // └── run-make/ - // ``` - - // `source_root` is the top-level directory containing the rust-lang/rust checkout. - let source_root = - self.config.find_rust_src_root().expect("could not determine rust source root"); // `self.config.build_base` is actually the build base folder + "test" + test suite name, it // looks like `build//test/run-make`. But we want `build//`. Note // that the `build` directory does not need to be called `build`, nor does it need to be - // under `source_root`, so we must compute it based off of `self.config.build_base`. + // under `src_root`, so we must compute it based off of `self.config.build_base`. let build_root = self.config.build_base.parent().and_then(Path::parent).unwrap().to_path_buf(); @@ -389,10 +369,9 @@ impl TestCx<'_> { .env("TARGET", &self.config.target) // Some tests unfortunately still need Python, so provide path to a Python interpreter. .env("PYTHON", &self.config.python) - // Provide path to checkout root. This is the top-level directory containing - // rust-lang/rust checkout. - .env("SOURCE_ROOT", &source_root) - // Path to the build directory. This is usually the same as `source_root.join("build").join("host")`. + // Provide path to sources root. + .env("SOURCE_ROOT", &self.config.src_root) + // Path to the host build directory. .env("BUILD_ROOT", &build_root) // Provide path to stage-corresponding rustc. .env("RUSTC", &self.config.rustc_path) @@ -408,11 +387,11 @@ impl TestCx<'_> { .env("LLVM_COMPONENTS", &self.config.llvm_components); if let Some(ref cargo) = self.config.cargo_path { - cmd.env("CARGO", source_root.join(cargo)); + cmd.env("CARGO", cargo); } if let Some(ref rustdoc) = self.config.rustdoc_path { - cmd.env("RUSTDOC", source_root.join(rustdoc)); + cmd.env("RUSTDOC", rustdoc); } if let Some(ref node) = self.config.nodejs { diff --git a/src/tools/compiletest/src/runtest/rustdoc.rs b/src/tools/compiletest/src/runtest/rustdoc.rs index 3f33862d2cfe..2583ae96a678 100644 --- a/src/tools/compiletest/src/runtest/rustdoc.rs +++ b/src/tools/compiletest/src/runtest/rustdoc.rs @@ -17,9 +17,10 @@ impl TestCx<'_> { if self.props.check_test_line_numbers_match { self.check_rustdoc_test_option(proc_res); } else { - let root = self.config.find_rust_src_root().unwrap(); let mut cmd = Command::new(&self.config.python); - cmd.arg(root.join("src/etc/htmldocck.py")).arg(&out_dir).arg(&self.testpaths.file); + cmd.arg(self.config.src_root.join("src/etc/htmldocck.py")) + .arg(&out_dir) + .arg(&self.testpaths.file); if self.config.bless { cmd.arg("--bless"); } From 6d0c27e9763cdf6c1cad46d7a71ff83468ad6371 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E8=AE=B8=E6=9D=B0=E5=8F=8B=20Jieyou=20Xu=20=28Joe=29?= <39484203+jieyouxu@users.noreply.github.com> Date: Mon, 3 Feb 2025 16:28:32 +0800 Subject: [PATCH 214/255] bootstrap: pass `--src-root` and `--src-test-suite-root` instead of `--src-base` --- src/bootstrap/src/core/build_steps/test.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/build_steps/test.rs b/src/bootstrap/src/core/build_steps/test.rs index b3f4a7bad99c..5fc3e8469bb7 100644 --- a/src/bootstrap/src/core/build_steps/test.rs +++ b/src/bootstrap/src/core/build_steps/test.rs @@ -1762,7 +1762,9 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the cmd.arg("--coverage-dump-path").arg(coverage_dump); } - cmd.arg("--src-base").arg(builder.src.join("tests").join(suite)); + cmd.arg("--src-root").arg(&builder.src); + cmd.arg("--src-test-suite-root").arg(builder.src.join("tests").join(suite)); + cmd.arg("--build-base").arg(testdir(builder, compiler.host).join(suite)); // When top stage is 0, that means that we're testing an externally provided compiler. From 0713bbcdfa91c02d35c13482ef506906b4035990 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 19 Feb 2025 05:23:33 +0000 Subject: [PATCH 215/255] Ignore fake borrows for packed field check --- compiler/rustc_middle/src/mir/visit.rs | 8 +++--- .../lint/unaligned_references_fake_borrow.rs | 27 +++++++++++++++++++ 2 files changed, 31 insertions(+), 4 deletions(-) create mode 100644 tests/ui/lint/unaligned_references_fake_borrow.rs diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 98e8f269c57b..af09a6d570ba 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -1364,13 +1364,13 @@ impl PlaceContext { matches!(self, PlaceContext::MutatingUse(MutatingUseContext::Drop)) } - /// Returns `true` if this place context represents a borrow. + /// Returns `true` if this place context represents a borrow, excluding fake borrows + /// (which are an artifact of borrowck and not actually borrows in runtime MIR). pub fn is_borrow(self) -> bool { matches!( self, - PlaceContext::NonMutatingUse( - NonMutatingUseContext::SharedBorrow | NonMutatingUseContext::FakeBorrow - ) | PlaceContext::MutatingUse(MutatingUseContext::Borrow) + PlaceContext::NonMutatingUse(NonMutatingUseContext::SharedBorrow) + | PlaceContext::MutatingUse(MutatingUseContext::Borrow) ) } diff --git a/tests/ui/lint/unaligned_references_fake_borrow.rs b/tests/ui/lint/unaligned_references_fake_borrow.rs new file mode 100644 index 000000000000..b0ef8b471caa --- /dev/null +++ b/tests/ui/lint/unaligned_references_fake_borrow.rs @@ -0,0 +1,27 @@ +//@ check-pass + +// Regression test for . + +// Ensure that we don't emit unaligned packed field reference errors for the fake +// borrows that we generate during match lowering. These fake borrows are there to +// ensure in *borrow-checking* that we don't modify the value being matched, but +// they are removed after the MIR is processed by `CleanupPostBorrowck`. + +#[repr(packed)] +pub struct Packed(i32); + +fn f(x: Packed) { + match &x { + Packed(4) => {}, + _ if true => {}, + _ => {} + } + + match x { + Packed(4) => {}, + _ if true => {}, + _ => {} + } +} + +fn main() {} From 241a602d2714d98e65727bce01c7f1e17021b645 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 5 Feb 2025 17:27:24 +0000 Subject: [PATCH 216/255] Make sure we don't overrun the stack in canonicalizer --- .../src/canonicalizer.rs | 4 +- tests/ui/associated-consts/issue-93775.rs | 67 +++++++++++++++++-- 2 files changed, 65 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_next_trait_solver/src/canonicalizer.rs b/compiler/rustc_next_trait_solver/src/canonicalizer.rs index 7eeed721d5a0..9cae7f27947b 100644 --- a/compiler/rustc_next_trait_solver/src/canonicalizer.rs +++ b/compiler/rustc_next_trait_solver/src/canonicalizer.rs @@ -1,6 +1,6 @@ use std::cmp::Ordering; -use rustc_type_ir::data_structures::HashMap; +use rustc_type_ir::data_structures::{HashMap, ensure_sufficient_stack}; use rustc_type_ir::fold::{TypeFoldable, TypeFolder, TypeSuperFoldable}; use rustc_type_ir::inherent::*; use rustc_type_ir::solve::{Goal, QueryInput}; @@ -389,7 +389,7 @@ impl<'a, D: SolverDelegate, I: Interner> Canonicalizer<'a, D, I> { | ty::Alias(_, _) | ty::Bound(_, _) | ty::Error(_) => { - return t.super_fold_with(self); + return ensure_sufficient_stack(|| t.super_fold_with(self)); } }; diff --git a/tests/ui/associated-consts/issue-93775.rs b/tests/ui/associated-consts/issue-93775.rs index 88e88b559870..a9b8d10a83fb 100644 --- a/tests/ui/associated-consts/issue-93775.rs +++ b/tests/ui/associated-consts/issue-93775.rs @@ -2,11 +2,13 @@ // Similar to stress testing, the test case requires a larger call stack, // so we ignore rustc's debug assertions. -//@ build-pass -// ignore-tidy-linelength - // Regression for #93775, needs build-pass to test it. +//@ build-pass +//@ revisions: current next +//@ ignore-compare-mode-next-solver (explicit revisions) +//@[next] compile-flags: -Znext-solver + #![recursion_limit = "1001"] use std::marker::PhantomData; @@ -14,7 +16,64 @@ use std::marker::PhantomData; struct Z; struct S(PhantomData); -type Nested = S>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; +type Nested = S>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> +>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>; trait AsNum { const NUM: u32; From 31febc684ba8847494b1d1e223e8fc2cc87f3dcc Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Thu, 20 Feb 2025 19:47:31 +0000 Subject: [PATCH 217/255] Point at type that doesn't implement needed trait ``` error[E0277]: `?` couldn't convert the error: `E: std::error::Error` is not satisfied --> $DIR/bad-question-mark-on-trait-object.rs:7:13 | LL | fn foo() -> Result<(), Box> { | -------------------------------------- required `E: std::error::Error` because of this LL | Ok(bar()?) | -----^ the trait `std::error::Error` is not implemented for `E` | | | this has type `Result<_, E>` | note: `E` needs to implement `std::error::Error` --> $DIR/bad-question-mark-on-trait-object.rs:1:1 | LL | struct E; | ^^^^^^^^ = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = note: required for `Box` to implement `From` error[E0277]: `?` couldn't convert the error to `X` --> $DIR/bad-question-mark-on-trait-object.rs:18:13 | LL | fn bat() -> Result<(), X> { | ------------- expected `X` because of this LL | Ok(bar()?) | -----^ the trait `From` is not implemented for `X` | | | this can't be annotated with `?` because it has type `Result<_, E>` | note: `X` needs to implement `From` --> $DIR/bad-question-mark-on-trait-object.rs:4:1 | LL | struct X; | ^^^^^^^^ note: alternatively, `E` needs to implement `Into` --> $DIR/bad-question-mark-on-trait-object.rs:1:1 | LL | struct E; | ^^^^^^^^ = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait ``` --- .../traits/fulfillment_errors.rs | 51 +++++++++++++++++++ .../bad-question-mark-on-trait-object.rs | 4 +- .../bad-question-mark-on-trait-object.stderr | 19 ++++++- 3 files changed, 71 insertions(+), 3 deletions(-) diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index 4004fdd073ce..c92dfa24f85e 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -966,6 +966,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { }; let self_ty = trait_pred.skip_binder().self_ty(); let found_ty = trait_pred.skip_binder().trait_ref.args.get(1).and_then(|a| a.as_type()); + self.note_missing_impl_for_question_mark(err, self_ty, found_ty, trait_pred); let mut prev_ty = self.resolve_vars_if_possible( typeck.expr_ty_adjusted_opt(expr).unwrap_or(Ty::new_misc_error(self.tcx)), @@ -1130,6 +1131,56 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { suggested } + fn note_missing_impl_for_question_mark( + &self, + err: &mut Diag<'_>, + self_ty: Ty<'_>, + found_ty: Option>, + trait_pred: ty::PolyTraitPredicate<'tcx>, + ) { + match (self_ty.kind(), found_ty) { + (ty::Adt(def, _), Some(ty)) + if let ty::Adt(found, _) = ty.kind() + && def.did().is_local() + && found.did().is_local() => + { + err.span_note( + self.tcx.def_span(def.did()), + format!("`{self_ty}` needs to implement `From<{ty}>`"), + ); + err.span_note( + self.tcx.def_span(found.did()), + format!("alternatively, `{ty}` needs to implement `Into<{self_ty}>`"), + ); + } + (ty::Adt(def, _), None) if def.did().is_local() => { + err.span_note( + self.tcx.def_span(def.did()), + format!( + "`{self_ty}` needs to implement `{}`", + trait_pred.skip_binder().trait_ref.print_only_trait_path(), + ), + ); + } + (ty::Adt(def, _), Some(ty)) if def.did().is_local() => { + err.span_note( + self.tcx.def_span(def.did()), + format!("`{self_ty}` needs to implement `From<{ty}>`"), + ); + } + (_, Some(ty)) + if let ty::Adt(def, _) = ty.kind() + && def.did().is_local() => + { + err.span_note( + self.tcx.def_span(def.did()), + format!("`{ty}` needs to implement `Into<{self_ty}>`"), + ); + } + _ => {} + } + } + fn report_const_param_not_wf( &self, ty: Ty<'tcx>, diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.rs b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs index 9efac78b3d78..2a0d14b17503 100644 --- a/tests/ui/try-trait/bad-question-mark-on-trait-object.rs +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.rs @@ -1,5 +1,7 @@ struct E; -struct X; +//~^ NOTE `E` needs to implement `std::error::Error` +//~| NOTE alternatively, `E` needs to implement `Into` +struct X; //~ NOTE `X` needs to implement `From` fn foo() -> Result<(), Box> { //~ NOTE required `E: std::error::Error` because of this Ok(bar()?) diff --git a/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr index adebc16915d7..dd380850c9ec 100644 --- a/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr +++ b/tests/ui/try-trait/bad-question-mark-on-trait-object.stderr @@ -1,5 +1,5 @@ error[E0277]: `?` couldn't convert the error: `E: std::error::Error` is not satisfied - --> $DIR/bad-question-mark-on-trait-object.rs:5:13 + --> $DIR/bad-question-mark-on-trait-object.rs:7:13 | LL | fn foo() -> Result<(), Box> { | -------------------------------------- required `E: std::error::Error` because of this @@ -8,11 +8,16 @@ LL | Ok(bar()?) | | | this has type `Result<_, E>` | +note: `E` needs to implement `std::error::Error` + --> $DIR/bad-question-mark-on-trait-object.rs:1:1 + | +LL | struct E; + | ^^^^^^^^ = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait = note: required for `Box` to implement `From` error[E0277]: `?` couldn't convert the error to `X` - --> $DIR/bad-question-mark-on-trait-object.rs:16:13 + --> $DIR/bad-question-mark-on-trait-object.rs:18:13 | LL | fn bat() -> Result<(), X> { | ------------- expected `X` because of this @@ -21,6 +26,16 @@ LL | Ok(bar()?) | | | this can't be annotated with `?` because it has type `Result<_, E>` | +note: `X` needs to implement `From` + --> $DIR/bad-question-mark-on-trait-object.rs:4:1 + | +LL | struct X; + | ^^^^^^^^ +note: alternatively, `E` needs to implement `Into` + --> $DIR/bad-question-mark-on-trait-object.rs:1:1 + | +LL | struct E; + | ^^^^^^^^ = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait error: aborting due to 2 previous errors From a825e37fe4dba0e8b33ed05611ba130d396a5509 Mon Sep 17 00:00:00 2001 From: Lukas Markeffsky <@> Date: Fri, 21 Feb 2025 18:00:56 +0100 Subject: [PATCH 218/255] layout_of: put back not-so-unreachable case --- compiler/rustc_ty_utils/src/layout.rs | 15 ++++++++++- .../ui/layout/gce-rigid-const-in-array-len.rs | 27 +++++++++++++++++++ .../gce-rigid-const-in-array-len.stderr | 17 ++++++++++++ .../layout/unconstrained-param-ice-137308.rs | 18 +++++++++++++ .../unconstrained-param-ice-137308.stderr | 15 +++++++++++ 5 files changed, 91 insertions(+), 1 deletion(-) create mode 100644 tests/ui/layout/gce-rigid-const-in-array-len.rs create mode 100644 tests/ui/layout/gce-rigid-const-in-array-len.stderr create mode 100644 tests/ui/layout/unconstrained-param-ice-137308.rs create mode 100644 tests/ui/layout/unconstrained-param-ice-137308.stderr diff --git a/compiler/rustc_ty_utils/src/layout.rs b/compiler/rustc_ty_utils/src/layout.rs index b6a14d147cad..c8b3c8a796f3 100644 --- a/compiler/rustc_ty_utils/src/layout.rs +++ b/compiler/rustc_ty_utils/src/layout.rs @@ -147,12 +147,25 @@ fn extract_const_value<'tcx>( ) -> Result, &'tcx LayoutError<'tcx>> { match ct.kind() { ty::ConstKind::Value(cv) => Ok(cv), - ty::ConstKind::Param(_) | ty::ConstKind::Expr(_) | ty::ConstKind::Unevaluated(_) => { + ty::ConstKind::Param(_) | ty::ConstKind::Expr(_) => { if !ct.has_param() { bug!("failed to normalize const, but it is not generic: {ct:?}"); } Err(error(cx, LayoutError::TooGeneric(ty))) } + ty::ConstKind::Unevaluated(_) => { + let err = if ct.has_param() { + LayoutError::TooGeneric(ty) + } else { + // This case is reachable with unsatisfiable predicates and GCE (which will + // cause anon consts to inherit the unsatisfiable predicates). For example + // if we have an unsatisfiable `u8: Trait` bound, then it's not a compile + // error to mention `[u8; ::CONST]`, but we can't compute its + // layout. + LayoutError::Unknown(ty) + }; + Err(error(cx, err)) + } ty::ConstKind::Infer(_) | ty::ConstKind::Bound(..) | ty::ConstKind::Placeholder(_) diff --git a/tests/ui/layout/gce-rigid-const-in-array-len.rs b/tests/ui/layout/gce-rigid-const-in-array-len.rs new file mode 100644 index 000000000000..8e57907a2c5e --- /dev/null +++ b/tests/ui/layout/gce-rigid-const-in-array-len.rs @@ -0,0 +1,27 @@ +//! With `feature(generic_const_exprs)`, anon consts (e.g. length in array types) will +//! inherit their parent's predicates. When combined with `feature(trivial_bounds)`, it +//! is possible to have an unevaluated constant that is rigid, but not generic. +//! +//! This is what happens below: `u8: A` does not hold in the global environment, but +//! with trivial bounds + GCE it it possible that `::B` can appear in an array +//! length without causing a compile error. This constant is *rigid* (i.e. it cannot be +//! normalized further), but it is *not generic* (i.e. it does not depend on any generic +//! parameters). +//! +//! This test ensures that we do not ICE in layout computation when encountering such a +//! constant. + +#![feature(rustc_attrs)] +#![feature(generic_const_exprs)] //~ WARNING: the feature `generic_const_exprs` is incomplete +#![feature(trivial_bounds)] + +#![crate_type = "lib"] + +trait A { + const B: usize; +} + +#[rustc_layout(debug)] +struct S([u8; ::B]) //~ ERROR: the type `[u8; ::B]` has an unknown layout +where + u8: A; diff --git a/tests/ui/layout/gce-rigid-const-in-array-len.stderr b/tests/ui/layout/gce-rigid-const-in-array-len.stderr new file mode 100644 index 000000000000..6149debdfe88 --- /dev/null +++ b/tests/ui/layout/gce-rigid-const-in-array-len.stderr @@ -0,0 +1,17 @@ +warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes + --> $DIR/gce-rigid-const-in-array-len.rs:15:12 + | +LL | #![feature(generic_const_exprs)] + | ^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #76560 for more information + = note: `#[warn(incomplete_features)]` on by default + +error: the type `[u8; ::B]` has an unknown layout + --> $DIR/gce-rigid-const-in-array-len.rs:25:1 + | +LL | struct S([u8; ::B]) + | ^^^^^^^^ + +error: aborting due to 1 previous error; 1 warning emitted + diff --git a/tests/ui/layout/unconstrained-param-ice-137308.rs b/tests/ui/layout/unconstrained-param-ice-137308.rs new file mode 100644 index 000000000000..d460fc64f1f9 --- /dev/null +++ b/tests/ui/layout/unconstrained-param-ice-137308.rs @@ -0,0 +1,18 @@ +//! Regression test for . +//! +//! This used to ICE in layout computation, because `::B` fails to normalize +//! due to the unconstrained param on the impl. + +#![feature(rustc_attrs)] +#![crate_type = "lib"] + +trait A { + const B: usize; +} + +impl A for u8 { //~ ERROR: the type parameter `C` is not constrained + const B: usize = 42; +} + +#[rustc_layout(debug)] +struct S([u8; ::B]); //~ ERROR: the type `[u8; ::B]` has an unknown layout diff --git a/tests/ui/layout/unconstrained-param-ice-137308.stderr b/tests/ui/layout/unconstrained-param-ice-137308.stderr new file mode 100644 index 000000000000..03ee941d37e1 --- /dev/null +++ b/tests/ui/layout/unconstrained-param-ice-137308.stderr @@ -0,0 +1,15 @@ +error[E0207]: the type parameter `C` is not constrained by the impl trait, self type, or predicates + --> $DIR/unconstrained-param-ice-137308.rs:13:6 + | +LL | impl A for u8 { + | ^ unconstrained type parameter + +error: the type `[u8; ::B]` has an unknown layout + --> $DIR/unconstrained-param-ice-137308.rs:18:1 + | +LL | struct S([u8; ::B]); + | ^^^^^^^^ + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0207`. From 7fea935ec5e2e5ab7f0c86e3b4f89c0da8d646c6 Mon Sep 17 00:00:00 2001 From: Lukas Markeffsky <@> Date: Fri, 21 Feb 2025 18:34:14 +0100 Subject: [PATCH 219/255] don't leave assoc const unnormalized due to unconstrained params --- compiler/rustc_middle/src/traits/mod.rs | 5 ++++- compiler/rustc_traits/src/codegen.rs | 16 +++++++--------- compiler/rustc_ty_utils/src/instance.rs | 1 + .../ui/layout/unconstrained-param-ice-137308.rs | 2 +- .../layout/unconstrained-param-ice-137308.stderr | 2 +- 5 files changed, 14 insertions(+), 12 deletions(-) diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 53bc9eb7e466..54cd8cc3efe7 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -12,7 +12,7 @@ use std::borrow::Cow; use std::hash::{Hash, Hasher}; use std::sync::Arc; -use rustc_errors::{Applicability, Diag, EmissionGuarantee}; +use rustc_errors::{Applicability, Diag, EmissionGuarantee, ErrorGuaranteed}; use rustc_hir as hir; use rustc_hir::HirId; use rustc_hir::def_id::DefId; @@ -996,4 +996,7 @@ pub enum CodegenObligationError { /// but was included during typeck due to the trivial_bounds feature. Unimplemented, FulfillmentError, + /// The selected impl has unconstrained generic parameters. This will emit an error + /// during impl WF checking. + UnconstrainedParam(ErrorGuaranteed), } diff --git a/compiler/rustc_traits/src/codegen.rs b/compiler/rustc_traits/src/codegen.rs index e5276e6d5158..cc329ca33288 100644 --- a/compiler/rustc_traits/src/codegen.rs +++ b/compiler/rustc_traits/src/codegen.rs @@ -80,16 +80,14 @@ pub(crate) fn codegen_select_candidate<'tcx>( // but never resolved, causing the return value of a query to contain inference // vars. We do not have a concept for this and will in fact ICE in stable hashing // of the return value. So bail out instead. - match impl_source { - ImplSource::UserDefined(impl_) => { - tcx.dcx().span_delayed_bug( - tcx.def_span(impl_.impl_def_id), - "this impl has unconstrained generic parameters", - ); - } + let guar = match impl_source { + ImplSource::UserDefined(impl_) => tcx.dcx().span_delayed_bug( + tcx.def_span(impl_.impl_def_id), + "this impl has unconstrained generic parameters", + ), _ => unreachable!(), - } - return Err(CodegenObligationError::FulfillmentError); + }; + return Err(CodegenObligationError::UnconstrainedParam(guar)); } Ok(&*tcx.arena.alloc(impl_source)) diff --git a/compiler/rustc_ty_utils/src/instance.rs b/compiler/rustc_ty_utils/src/instance.rs index 8c6e3c86bf5c..d059d6dcd139 100644 --- a/compiler/rustc_ty_utils/src/instance.rs +++ b/compiler/rustc_ty_utils/src/instance.rs @@ -112,6 +112,7 @@ fn resolve_associated_item<'tcx>( | CodegenObligationError::Unimplemented | CodegenObligationError::FulfillmentError, ) => return Ok(None), + Err(CodegenObligationError::UnconstrainedParam(guar)) => return Err(guar), }; // Now that we know which impl is being used, we can dispatch to diff --git a/tests/ui/layout/unconstrained-param-ice-137308.rs b/tests/ui/layout/unconstrained-param-ice-137308.rs index d460fc64f1f9..c9b1e0a4b9ec 100644 --- a/tests/ui/layout/unconstrained-param-ice-137308.rs +++ b/tests/ui/layout/unconstrained-param-ice-137308.rs @@ -15,4 +15,4 @@ impl A for u8 { //~ ERROR: the type parameter `C` is not constrained } #[rustc_layout(debug)] -struct S([u8; ::B]); //~ ERROR: the type `[u8; ::B]` has an unknown layout +struct S([u8; ::B]); //~ ERROR: the type has an unknown layout diff --git a/tests/ui/layout/unconstrained-param-ice-137308.stderr b/tests/ui/layout/unconstrained-param-ice-137308.stderr index 03ee941d37e1..615c131eb904 100644 --- a/tests/ui/layout/unconstrained-param-ice-137308.stderr +++ b/tests/ui/layout/unconstrained-param-ice-137308.stderr @@ -4,7 +4,7 @@ error[E0207]: the type parameter `C` is not constrained by the impl trait, self LL | impl A for u8 { | ^ unconstrained type parameter -error: the type `[u8; ::B]` has an unknown layout +error: the type has an unknown layout --> $DIR/unconstrained-param-ice-137308.rs:18:1 | LL | struct S([u8; ::B]); From 72bd174c43406068727e17cbf6fc2f4e1a36f6af Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 3 Feb 2025 02:38:56 +0000 Subject: [PATCH 220/255] Do not deduplicate list of associated types provided by dyn principal --- .../src/hir_ty_lowering/dyn_compatibility.rs | 127 ++++++++++++++---- compiler/rustc_middle/src/ty/relate.rs | 18 +-- compiler/rustc_type_ir/src/elaborate.rs | 15 +-- tests/crashes/125957.rs | 20 --- tests/crashes/132330.rs | 28 ---- .../associated-types-overridden-binding-2.rs | 2 +- ...sociated-types-overridden-binding-2.stderr | 14 +- .../associated-types-overridden-binding.rs | 1 + ...associated-types-overridden-binding.stderr | 13 +- .../closures/deduce-from-object-supertrait.rs | 18 +++ .../multiple-supers-should-work.rs | 21 +++ .../crash-due-to-projections-modulo-norm.rs} | 17 ++- .../incomplete-multiple-super-projection.rs | 32 +++++ ...ncomplete-multiple-super-projection.stderr | 12 ++ .../infer-shadows-implied-projection.rs} | 2 +- tests/ui/traits/object/outlives-super-proj.rs | 24 ++++ tests/ui/traits/object/pretty.stderr | 6 +- tests/ui/traits/object/redundant.rs | 12 ++ 18 files changed, 265 insertions(+), 117 deletions(-) delete mode 100644 tests/crashes/125957.rs delete mode 100644 tests/crashes/132330.rs create mode 100644 tests/ui/closures/deduce-from-object-supertrait.rs create mode 100644 tests/ui/dyn-compatibility/multiple-supers-should-work.rs rename tests/{crashes/126944.rs => ui/traits/object/crash-due-to-projections-modulo-norm.rs} (77%) create mode 100644 tests/ui/traits/object/incomplete-multiple-super-projection.rs create mode 100644 tests/ui/traits/object/incomplete-multiple-super-projection.stderr rename tests/{crashes/79590.rs => ui/traits/object/infer-shadows-implied-projection.rs} (92%) create mode 100644 tests/ui/traits/object/outlives-super-proj.rs create mode 100644 tests/ui/traits/object/redundant.rs diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs index 830dca0d3cd5..3eb4945ebf80 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/dyn_compatibility.rs @@ -1,4 +1,4 @@ -use rustc_data_structures::fx::{FxHashSet, FxIndexSet}; +use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_errors::codes::*; use rustc_errors::struct_span_code_err; use rustc_hir as hir; @@ -58,9 +58,9 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } } - let (trait_bounds, mut projection_bounds) = + let (elaborated_trait_bounds, elaborated_projection_bounds) = traits::expand_trait_aliases(tcx, user_written_bounds.iter().copied()); - let (regular_traits, mut auto_traits): (Vec<_>, Vec<_>) = trait_bounds + let (regular_traits, mut auto_traits): (Vec<_>, Vec<_>) = elaborated_trait_bounds .into_iter() .partition(|(trait_ref, _)| !tcx.trait_is_auto(trait_ref.def_id())); @@ -103,29 +103,81 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } } + // Map the projection bounds onto a key that makes it easy to remove redundant + // bounds that are constrained by supertraits of the principal def id. + // + // Also make sure we detect conflicting bounds from expanding a trait alias and + // also specifying it manually, like: + // ``` + // type Alias = Trait; + // let _: &dyn Alias = /* ... */; + // ``` + let mut projection_bounds = FxIndexMap::default(); + for (proj, proj_span) in elaborated_projection_bounds { + let key = ( + proj.skip_binder().projection_term.def_id, + tcx.anonymize_bound_vars( + proj.map_bound(|proj| proj.projection_term.trait_ref(tcx)), + ), + ); + if let Some((old_proj, old_proj_span)) = + projection_bounds.insert(key, (proj, proj_span)) + && tcx.anonymize_bound_vars(proj) != tcx.anonymize_bound_vars(old_proj) + { + let item = tcx.item_name(proj.item_def_id()); + self.dcx() + .struct_span_err( + span, + format!( + "conflicting associated type bounds for `{item}` when \ + expanding trait alias" + ), + ) + .with_span_label( + old_proj_span, + format!("`{item}` is specified to be `{}` here", old_proj.term()), + ) + .with_span_label( + proj_span, + format!("`{item}` is specified to be `{}` here", proj.term()), + ) + .emit(); + } + } + let principal_trait = regular_traits.into_iter().next(); - let mut needed_associated_types = FxIndexSet::default(); - if let Some((principal_trait, spans)) = &principal_trait { - let pred: ty::Predicate<'tcx> = (*principal_trait).upcast(tcx); - for ClauseWithSupertraitSpan { pred, supertrait_span } in traits::elaborate( + let mut needed_associated_types = vec![]; + if let Some((principal_trait, ref spans)) = principal_trait { + let principal_trait = principal_trait.map_bound(|trait_pred| { + assert_eq!(trait_pred.polarity, ty::PredicatePolarity::Positive); + trait_pred.trait_ref + }); + + for ClauseWithSupertraitSpan { clause, supertrait_span } in traits::elaborate( tcx, - [ClauseWithSupertraitSpan::new(pred, *spans.last().unwrap())], + [ClauseWithSupertraitSpan::new( + ty::TraitRef::identity(tcx, principal_trait.def_id()).upcast(tcx), + *spans.last().unwrap(), + )], ) .filter_only_self() { - debug!("observing object predicate `{pred:?}`"); + let clause = clause.instantiate_supertrait(tcx, principal_trait); + debug!("observing object predicate `{clause:?}`"); - let bound_predicate = pred.kind(); + let bound_predicate = clause.kind(); match bound_predicate.skip_binder() { - ty::PredicateKind::Clause(ty::ClauseKind::Trait(pred)) => { + ty::ClauseKind::Trait(pred) => { // FIXME(negative_bounds): Handle this correctly... let trait_ref = tcx.anonymize_bound_vars(bound_predicate.rebind(pred.trait_ref)); needed_associated_types.extend( - tcx.associated_items(trait_ref.def_id()) + tcx.associated_items(pred.trait_ref.def_id) .in_definition_order() + // We only care about associated types. .filter(|item| item.kind == ty::AssocKind::Type) + // No RPITITs -- even with `async_fn_in_dyn_trait`, they are implicit. .filter(|item| !item.is_impl_trait_in_trait()) // If the associated type has a `where Self: Sized` bound, // we do not need to constrain the associated type. @@ -133,7 +185,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { .map(|item| (item.def_id, trait_ref)), ); } - ty::PredicateKind::Clause(ty::ClauseKind::Projection(pred)) => { + ty::ClauseKind::Projection(pred) => { let pred = bound_predicate.rebind(pred); // A `Self` within the original bound will be instantiated with a // `trait_object_dummy_self`, so check for that. @@ -161,8 +213,15 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { // `dyn MyTrait`, which is uglier but works. See // the discussion in #56288 for alternatives. if !references_self { - // Include projections defined on supertraits. - projection_bounds.push((pred, supertrait_span)); + let key = ( + pred.skip_binder().projection_term.def_id, + tcx.anonymize_bound_vars( + pred.map_bound(|proj| proj.projection_term.trait_ref(tcx)), + ), + ); + if !projection_bounds.contains_key(&key) { + projection_bounds.insert(key, (pred, supertrait_span)); + } } self.check_elaborated_projection_mentions_input_lifetimes( @@ -182,12 +241,8 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { // types that we expect to be provided by the user, so the following loop // removes all the associated types that have a corresponding `Projection` // clause, either from expanding trait aliases or written by the user. - for &(projection_bound, span) in &projection_bounds { + for &(projection_bound, span) in projection_bounds.values() { let def_id = projection_bound.item_def_id(); - let trait_ref = tcx.anonymize_bound_vars( - projection_bound.map_bound(|p| p.projection_term.trait_ref(tcx)), - ); - needed_associated_types.swap_remove(&(def_id, trait_ref)); if tcx.generics_require_sized_self(def_id) { tcx.emit_node_span_lint( UNUSED_ASSOCIATED_TYPE_BOUNDS, @@ -198,9 +253,22 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { } } + let mut missing_assoc_types = FxIndexSet::default(); + let projection_bounds: Vec<_> = needed_associated_types + .into_iter() + .filter_map(|key| { + if let Some(assoc) = projection_bounds.get(&key) { + Some(*assoc) + } else { + missing_assoc_types.insert(key); + None + } + }) + .collect(); + if let Err(guar) = self.check_for_required_assoc_tys( principal_trait.as_ref().map_or(smallvec![], |(_, spans)| spans.clone()), - needed_associated_types, + missing_assoc_types, potential_assoc_types, hir_bounds, ) { @@ -266,7 +334,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { }) }); - let existential_projections = projection_bounds.iter().map(|(bound, _)| { + let existential_projections = projection_bounds.into_iter().map(|(bound, _)| { bound.map_bound(|mut b| { assert_eq!(b.projection_term.self_ty(), dummy_self); @@ -291,12 +359,16 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { }) }); - let auto_trait_predicates = auto_traits.into_iter().map(|(trait_pred, _)| { - assert_eq!(trait_pred.polarity(), ty::PredicatePolarity::Positive); - assert_eq!(trait_pred.self_ty().skip_binder(), dummy_self); + let mut auto_trait_predicates: Vec<_> = auto_traits + .into_iter() + .map(|(trait_pred, _)| { + assert_eq!(trait_pred.polarity(), ty::PredicatePolarity::Positive); + assert_eq!(trait_pred.self_ty().skip_binder(), dummy_self); - ty::Binder::dummy(ty::ExistentialPredicate::AutoTrait(trait_pred.def_id())) - }); + ty::Binder::dummy(ty::ExistentialPredicate::AutoTrait(trait_pred.def_id())) + }) + .collect(); + auto_trait_predicates.dedup(); // N.b. principal, projections, auto traits // FIXME: This is actually wrong with multiple principals in regards to symbol mangling @@ -306,7 +378,6 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { .chain(auto_trait_predicates) .collect::>(); v.sort_by(|a, b| a.skip_binder().stable_cmp(tcx, &b.skip_binder())); - v.dedup(); let existential_predicates = tcx.mk_poly_existential_predicates(&v); // Use explicitly-specified region bound, unless the bound is missing. diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index afdec7a86d44..1d1aad916bc2 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -79,20 +79,11 @@ impl<'tcx> Relate> for &'tcx ty::List RelateResult<'tcx, Self> { let tcx = relation.cx(); - - // FIXME: this is wasteful, but want to do a perf run to see how slow it is. - // We need to perform this deduplication as we sometimes generate duplicate projections - // in `a`. - let mut a_v: Vec<_> = a.into_iter().collect(); - let mut b_v: Vec<_> = b.into_iter().collect(); - a_v.dedup(); - b_v.dedup(); - if a_v.len() != b_v.len() { + if a.len() != b.len() { return Err(TypeError::ExistentialMismatch(ExpectedFound::new(a, b))); } - - let v = iter::zip(a_v, b_v).map(|(ep_a, ep_b)| { - match (ep_a.skip_binder(), ep_b.skip_binder()) { + let v = + iter::zip(a, b).map(|(ep_a, ep_b)| match (ep_a.skip_binder(), ep_b.skip_binder()) { (ty::ExistentialPredicate::Trait(a), ty::ExistentialPredicate::Trait(b)) => { Ok(ep_a.rebind(ty::ExistentialPredicate::Trait( relation.relate(ep_a.rebind(a), ep_b.rebind(b))?.skip_binder(), @@ -109,8 +100,7 @@ impl<'tcx> Relate> for &'tcx ty::List Ok(ep_a.rebind(ty::ExistentialPredicate::AutoTrait(a))), _ => Err(TypeError::ExistentialMismatch(ExpectedFound::new(a, b))), - } - }); + }); tcx.mk_poly_existential_predicates_from_iter(v) } } diff --git a/compiler/rustc_type_ir/src/elaborate.rs b/compiler/rustc_type_ir/src/elaborate.rs index 923b74abdfd2..b11bcff1d8bb 100644 --- a/compiler/rustc_type_ir/src/elaborate.rs +++ b/compiler/rustc_type_ir/src/elaborate.rs @@ -44,25 +44,22 @@ pub trait Elaboratable { } pub struct ClauseWithSupertraitSpan { - pub pred: I::Predicate, + pub clause: I::Clause, // Span of the supertrait predicatae that lead to this clause. pub supertrait_span: I::Span, } impl ClauseWithSupertraitSpan { - pub fn new(pred: I::Predicate, span: I::Span) -> Self { - ClauseWithSupertraitSpan { pred, supertrait_span: span } + pub fn new(clause: I::Clause, span: I::Span) -> Self { + ClauseWithSupertraitSpan { clause, supertrait_span: span } } } impl Elaboratable for ClauseWithSupertraitSpan { fn predicate(&self) -> ::Predicate { - self.pred + self.clause.as_predicate() } fn child(&self, clause: ::Clause) -> Self { - ClauseWithSupertraitSpan { - pred: clause.as_predicate(), - supertrait_span: self.supertrait_span, - } + ClauseWithSupertraitSpan { clause, supertrait_span: self.supertrait_span } } fn child_with_derived_cause( @@ -72,7 +69,7 @@ impl Elaboratable for ClauseWithSupertraitSpan { _parent_trait_pred: crate::Binder>, _index: usize, ) -> Self { - ClauseWithSupertraitSpan { pred: clause.as_predicate(), supertrait_span } + ClauseWithSupertraitSpan { clause, supertrait_span } } } diff --git a/tests/crashes/125957.rs b/tests/crashes/125957.rs deleted file mode 100644 index e3abe5262eb9..000000000000 --- a/tests/crashes/125957.rs +++ /dev/null @@ -1,20 +0,0 @@ -//@ known-bug: rust-lang/rust#125957 -#![feature(generic_const_exprs)] -#![allow(incomplete_features)] -#![feature(associated_const_equality)] - -pub struct Equal(); - -pub enum ParseMode { - Raw, -} -pub trait Parse { - const PARSE_MODE: ParseMode; -} -pub trait RenderRaw: Parse {} - -trait GenericVec { - fn unwrap() -> dyn RenderRaw; -} - -fn main() {} diff --git a/tests/crashes/132330.rs b/tests/crashes/132330.rs deleted file mode 100644 index 3432685749d9..000000000000 --- a/tests/crashes/132330.rs +++ /dev/null @@ -1,28 +0,0 @@ -//@ known-bug: #132330 -//@compile-flags: -Znext-solver=globally - -trait Service { - type S; -} - -trait Framing { - type F; -} - -impl Framing for () { - type F = (); -} - -trait HttpService: Service {} - -type BoxService = Box>; - -fn build_server BoxService>(_: F) {} - -fn make_server() -> Box> { - unimplemented!() -} - -fn main() { - build_server(|| make_server()) -} diff --git a/tests/ui/associated-types/associated-types-overridden-binding-2.rs b/tests/ui/associated-types/associated-types-overridden-binding-2.rs index fed60ccf089d..247724eaaf11 100644 --- a/tests/ui/associated-types/associated-types-overridden-binding-2.rs +++ b/tests/ui/associated-types/associated-types-overridden-binding-2.rs @@ -4,5 +4,5 @@ trait I32Iterator = Iterator; fn main() { let _: &dyn I32Iterator = &vec![42].into_iter(); - //~^ ERROR expected `IntoIter` to be an iterator that yields `i32`, but it yields `u32` + //~^ ERROR conflicting associated type bounds } diff --git a/tests/ui/associated-types/associated-types-overridden-binding-2.stderr b/tests/ui/associated-types/associated-types-overridden-binding-2.stderr index 4dfd275a1905..71a4a2610aac 100644 --- a/tests/ui/associated-types/associated-types-overridden-binding-2.stderr +++ b/tests/ui/associated-types/associated-types-overridden-binding-2.stderr @@ -1,11 +1,13 @@ -error[E0271]: expected `IntoIter` to be an iterator that yields `i32`, but it yields `u32` - --> $DIR/associated-types-overridden-binding-2.rs:6:43 +error: conflicting associated type bounds for `Item` when expanding trait alias + --> $DIR/associated-types-overridden-binding-2.rs:6:13 | +LL | trait I32Iterator = Iterator; + | ---------- `Item` is specified to be `i32` here +... LL | let _: &dyn I32Iterator = &vec![42].into_iter(); - | ^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `u32` - | - = note: required for the cast from `&std::vec::IntoIter` to `&dyn Iterator` + | ^^^^^^^^^^^^^^^^----------^ + | | + | `Item` is specified to be `u32` here error: aborting due to 1 previous error -For more information about this error, try `rustc --explain E0271`. diff --git a/tests/ui/associated-types/associated-types-overridden-binding.rs b/tests/ui/associated-types/associated-types-overridden-binding.rs index 9a64a06c31ba..333a3e30c7dc 100644 --- a/tests/ui/associated-types/associated-types-overridden-binding.rs +++ b/tests/ui/associated-types/associated-types-overridden-binding.rs @@ -8,4 +8,5 @@ trait U32Iterator = I32Iterator; //~ ERROR type annotations needed fn main() { let _: &dyn I32Iterator; + //~^ ERROR conflicting associated type bounds } diff --git a/tests/ui/associated-types/associated-types-overridden-binding.stderr b/tests/ui/associated-types/associated-types-overridden-binding.stderr index dc087e4185fb..3b20015dfcab 100644 --- a/tests/ui/associated-types/associated-types-overridden-binding.stderr +++ b/tests/ui/associated-types/associated-types-overridden-binding.stderr @@ -22,6 +22,17 @@ note: required by a bound in `I32Iterator` LL | trait I32Iterator = Iterator; | ^^^^^^^^^^ required by this bound in `I32Iterator` -error: aborting due to 2 previous errors +error: conflicting associated type bounds for `Item` when expanding trait alias + --> $DIR/associated-types-overridden-binding.rs:10:13 + | +LL | trait I32Iterator = Iterator; + | ---------- `Item` is specified to be `i32` here +... +LL | let _: &dyn I32Iterator; + | ^^^^^^^^^^^^^^^^----------^ + | | + | `Item` is specified to be `u32` here + +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0284`. diff --git a/tests/ui/closures/deduce-from-object-supertrait.rs b/tests/ui/closures/deduce-from-object-supertrait.rs new file mode 100644 index 000000000000..aff750dc62ea --- /dev/null +++ b/tests/ui/closures/deduce-from-object-supertrait.rs @@ -0,0 +1,18 @@ +//@ check-pass + +// This test checks that we look at consider the super traits of trait objects +// when deducing closure signatures. + +trait Foo: Fn(Bar) {} +impl Foo for T where T: Fn(Bar) {} + +struct Bar; +impl Bar { + fn bar(&self) {} +} + +fn main() { + let x: &dyn Foo = &|x| { + x.bar(); + }; +} diff --git a/tests/ui/dyn-compatibility/multiple-supers-should-work.rs b/tests/ui/dyn-compatibility/multiple-supers-should-work.rs new file mode 100644 index 000000000000..6f381da9a220 --- /dev/null +++ b/tests/ui/dyn-compatibility/multiple-supers-should-work.rs @@ -0,0 +1,21 @@ +//@ check-pass + +// We previously incorrectly deduplicated the list of projection bounds +// of trait objects, causing us to incorrectly reject this code, cc #136458. + +trait Sup { + type Assoc; +} + +impl Sup for () { + type Assoc = T; +} + +trait Trait: Sup + Sup {} + +impl Trait for () {} + +fn main() { + let x: &dyn Trait<(), _> = &(); + let y: &dyn Trait<_, ()> = x; +} diff --git a/tests/crashes/126944.rs b/tests/ui/traits/object/crash-due-to-projections-modulo-norm.rs similarity index 77% rename from tests/crashes/126944.rs rename to tests/ui/traits/object/crash-due-to-projections-modulo-norm.rs index c0c5622e2602..b1f7c4a60002 100644 --- a/tests/crashes/126944.rs +++ b/tests/ui/traits/object/crash-due-to-projections-modulo-norm.rs @@ -1,9 +1,12 @@ -//@ known-bug: rust-lang/rust#126944 +//@ check-pass + +// Regression test for #126944. + // Step 1: Create two names for a single type: `Thing` and `AlsoThing` struct Thing; struct Dummy; -pub trait DummyTrait { +trait DummyTrait { type DummyType; } impl DummyTrait for Dummy { @@ -13,7 +16,7 @@ type AlsoThing = ::DummyType; // Step 2: Create names for a single trait object type: `TraitObject` and `AlsoTraitObject` -pub trait SomeTrait { +trait SomeTrait { type Item; } type TraitObject = dyn SomeTrait; @@ -21,12 +24,12 @@ type AlsoTraitObject = dyn SomeTrait; // Step 3: Force the compiler to check whether the two names are the same type -pub trait Supertrait { +trait Supertrait { type Foo; } -pub trait Subtrait: Supertrait {} +trait Subtrait: Supertrait {} -pub trait HasOutput { +trait HasOutput { type Output; } @@ -36,3 +39,5 @@ where { todo!() } + +fn main() {} diff --git a/tests/ui/traits/object/incomplete-multiple-super-projection.rs b/tests/ui/traits/object/incomplete-multiple-super-projection.rs new file mode 100644 index 000000000000..c7294eca4bdb --- /dev/null +++ b/tests/ui/traits/object/incomplete-multiple-super-projection.rs @@ -0,0 +1,32 @@ +// Regression test for #133361. + +trait Sup { + type Assoc; +} + +impl Sup for () { + type Assoc = T; +} +impl Dyn for () {} + +trait Dyn: Sup + Sup {} + +trait Trait { + type Assoc; +} +impl Trait for dyn Dyn<(), ()> { + type Assoc = &'static str; +} +impl Trait for dyn Dyn { +//~^ ERROR conflicting implementations of trait `Trait` for type `(dyn Dyn<(), ()> + 'static)` + type Assoc = usize; +} + +fn call(x: usize) -> as Trait>::Assoc { + x +} + +fn main() { + let x: &'static str = call::<(), ()>(0xDEADBEEF); + println!("{x}"); +} diff --git a/tests/ui/traits/object/incomplete-multiple-super-projection.stderr b/tests/ui/traits/object/incomplete-multiple-super-projection.stderr new file mode 100644 index 000000000000..b4271f70ed05 --- /dev/null +++ b/tests/ui/traits/object/incomplete-multiple-super-projection.stderr @@ -0,0 +1,12 @@ +error[E0119]: conflicting implementations of trait `Trait` for type `(dyn Dyn<(), ()> + 'static)` + --> $DIR/incomplete-multiple-super-projection.rs:20:1 + | +LL | impl Trait for dyn Dyn<(), ()> { + | ------------------------------ first implementation here +... +LL | impl Trait for dyn Dyn { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(dyn Dyn<(), ()> + 'static)` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0119`. diff --git a/tests/crashes/79590.rs b/tests/ui/traits/object/infer-shadows-implied-projection.rs similarity index 92% rename from tests/crashes/79590.rs rename to tests/ui/traits/object/infer-shadows-implied-projection.rs index b73864cce234..628912c54faa 100644 --- a/tests/crashes/79590.rs +++ b/tests/ui/traits/object/infer-shadows-implied-projection.rs @@ -1,4 +1,4 @@ -//@ known-bug: #79590 +//@ check-pass trait Database: Restriction {} diff --git a/tests/ui/traits/object/outlives-super-proj.rs b/tests/ui/traits/object/outlives-super-proj.rs new file mode 100644 index 000000000000..15b67d9ab68e --- /dev/null +++ b/tests/ui/traits/object/outlives-super-proj.rs @@ -0,0 +1,24 @@ +//@ check-pass + +// Make sure that we still deduce outlives bounds from supertrait projections +// and require them for well-formedness. + +trait Trait { + type Assoc; +} + +trait Bar { + type Assoc; +} + +trait Foo<'a, T: 'a>: Bar { + +} + +fn outlives<'a, T: 'a>() {} + +fn implied_outlives<'a, T: Trait>(x: &dyn Foo<'a, T::Assoc>) { + outlives::<'a, T::Assoc>(); +} + +fn main() {} diff --git a/tests/ui/traits/object/pretty.stderr b/tests/ui/traits/object/pretty.stderr index 2f9fdf151f08..37fe142951d8 100644 --- a/tests/ui/traits/object/pretty.stderr +++ b/tests/ui/traits/object/pretty.stderr @@ -154,12 +154,12 @@ error[E0308]: mismatched types --> $DIR/pretty.rs:41:56 | LL | fn dyn_has_gat(x: &dyn HasGat = ()>) { x } - | - ^ expected `()`, found `&dyn HasGat = ()>` + | - ^ expected `()`, found `&dyn HasGat` | | - | help: try adding a return type: `-> &dyn HasGat = ()>` + | help: try adding a return type: `-> &dyn HasGat` | = note: expected unit type `()` - found reference `&dyn HasGat = ()>` + found reference `&dyn HasGat` error: aborting due to 14 previous errors; 1 warning emitted diff --git a/tests/ui/traits/object/redundant.rs b/tests/ui/traits/object/redundant.rs new file mode 100644 index 000000000000..be07b1571389 --- /dev/null +++ b/tests/ui/traits/object/redundant.rs @@ -0,0 +1,12 @@ +//@ check-pass + +trait Foo: Bar {} +trait Bar { + type Out; +} + +fn w(x: &dyn Foo) { + let x: &dyn Foo = x; +} + +fn main() {} From a2a0cfe82563146325674b8d437f9f9f6e703703 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 5 Feb 2025 00:43:32 +0000 Subject: [PATCH 221/255] Assert that we always construct dyn types with the right number of projections --- compiler/rustc_middle/src/ty/relate.rs | 3 +++ compiler/rustc_middle/src/ty/sty.rs | 30 +++++++++++++++++++++++++- 2 files changed, 32 insertions(+), 1 deletion(-) diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index 1d1aad916bc2..839c1c346a47 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -79,6 +79,9 @@ impl<'tcx> Relate> for &'tcx ty::List RelateResult<'tcx, Self> { let tcx = relation.cx(); + // Fast path for when the auto traits do not match, or if the principals + // are from different traits and therefore the projections definitely don't + // match up. if a.len() != b.len() { return Err(TypeError::ExistentialMismatch(ExpectedFound::new(a, b))); } diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 8a31b2960188..9eda76087071 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -18,7 +18,7 @@ use rustc_macros::{HashStable, TyDecodable, TyEncodable, TypeFoldable, extension use rustc_span::{DUMMY_SP, Span, Symbol, sym}; use rustc_type_ir::TyKind::*; use rustc_type_ir::visit::TypeVisitableExt; -use rustc_type_ir::{self as ir, BoundVar, CollectAndApply, DynKind}; +use rustc_type_ir::{self as ir, BoundVar, CollectAndApply, DynKind, elaborate}; use tracing::instrument; use ty::util::{AsyncDropGlueMorphology, IntTypeExt}; @@ -720,6 +720,34 @@ impl<'tcx> Ty<'tcx> { reg: ty::Region<'tcx>, repr: DynKind, ) -> Ty<'tcx> { + if cfg!(debug_assertions) { + let projection_count = obj.projection_bounds().count(); + let expected_count: usize = obj + .principal_def_id() + .into_iter() + .flat_map(|principal_def_id| { + // NOTE: This should agree with `needed_associated_types` in + // dyn trait lowering, or else we'll have ICEs. + elaborate::supertraits( + tcx, + ty::Binder::dummy(ty::TraitRef::identity(tcx, principal_def_id)), + ) + .map(|principal| { + tcx.associated_items(principal.def_id()) + .in_definition_order() + .filter(|item| item.kind == ty::AssocKind::Type) + .filter(|item| !item.is_impl_trait_in_trait()) + .filter(|item| !tcx.generics_require_sized_self(item.def_id)) + .count() + }) + }) + .sum(); + assert_eq!( + projection_count, expected_count, + "expected {obj:?} to have {expected_count} projections, \ + but it has {projection_count}" + ); + } Ty::new(tcx, Dynamic(obj, reg, repr)) } From 6ed53a624b41d0973ffe4efc1fe4ee642cdc166e Mon Sep 17 00:00:00 2001 From: Paul Mabileau Date: Fri, 21 Feb 2025 16:02:40 +0100 Subject: [PATCH 222/255] Fix(lib/fs/tests): Disable rename POSIX semantics FS tests under Windows 7 Would otherwise fail there. The Windows7-specific parts were left pretty much untouched by the changes introduced by 51df98ddb094b39b2e17d24f887cd66c52560ef6, so it is expected that these tests fail under Windows 7 as they were probably written to run under Windows 10+ only. Signed-off-by: Paul Mabileau --- library/std/src/fs/tests.rs | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs index 1a266f71965d..c7833c7dc713 100644 --- a/library/std/src/fs/tests.rs +++ b/library/std/src/fs/tests.rs @@ -1914,8 +1914,11 @@ fn test_hidden_file_truncation() { assert_eq!(metadata.len(), 0); } +// See https://github.com/rust-lang/rust/pull/131072 for more details about why +// these two tests are disabled under Windows 7 here. #[cfg(windows)] #[test] +#[cfg_attr(target_vendor = "win7", ignore = "Unsupported under Windows 7.")] fn test_rename_file_over_open_file() { // Make sure that std::fs::rename works if the target file is already opened with FILE_SHARE_DELETE. See #123985. let tmpdir = tmpdir(); @@ -1940,6 +1943,7 @@ fn test_rename_file_over_open_file() { #[test] #[cfg(windows)] +#[cfg_attr(target_vendor = "win7", ignore = "Unsupported under Windows 7.")] fn test_rename_directory_to_non_empty_directory() { // Renaming a directory over a non-empty existing directory should fail on Windows. let tmpdir: TempDir = tmpdir(); From ec88bc2e00985e99923ff3de966a947daa63c567 Mon Sep 17 00:00:00 2001 From: Nikita Revenco <154856872+NikitaRevenco@users.noreply.github.com> Date: Fri, 21 Feb 2025 01:00:19 +0000 Subject: [PATCH 223/255] =?UTF-8?q?fix:=20naming=20convention=20"ferris"?= =?UTF-8?q?=20suggestion=20for=20idents=20named=20=F0=9F=A6=80?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit test: add tests for correct ferris capitalization fix: add "struct" style: use rustfmt style: remove newline fix: _ _ _ _ _ --- compiler/rustc_interface/src/errors.rs | 3 +- compiler/rustc_interface/src/passes.rs | 35 +++++++++++++++++++++++- tests/ui/parser/ferris-static-mut.rs | 3 ++ tests/ui/parser/ferris-static-mut.stderr | 8 ++++++ tests/ui/parser/ferris-struct.rs | 3 ++ tests/ui/parser/ferris-struct.stderr | 8 ++++++ 6 files changed, 58 insertions(+), 2 deletions(-) create mode 100644 tests/ui/parser/ferris-static-mut.rs create mode 100644 tests/ui/parser/ferris-static-mut.stderr create mode 100644 tests/ui/parser/ferris-struct.rs create mode 100644 tests/ui/parser/ferris-struct.stderr diff --git a/compiler/rustc_interface/src/errors.rs b/compiler/rustc_interface/src/errors.rs index ca4e556dcdb8..eed729a1777f 100644 --- a/compiler/rustc_interface/src/errors.rs +++ b/compiler/rustc_interface/src/errors.rs @@ -24,8 +24,9 @@ pub(crate) struct CrateNameInvalid<'a> { pub struct FerrisIdentifier { #[primary_span] pub spans: Vec, - #[suggestion(code = "ferris", applicability = "maybe-incorrect")] + #[suggestion(code = "{ferris_fix}", applicability = "maybe-incorrect")] pub first_span: Span, + pub ferris_fix: &'static str, } #[derive(Diagnostic)] diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index d70d9d344b94..c4b0e244c56b 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -301,8 +301,41 @@ fn early_lint_checks(tcx: TyCtxt<'_>, (): ()) { for (ident, mut spans) in identifiers.drain(..) { spans.sort(); if ident == sym::ferris { + enum FerrisFix { + SnakeCase, + ScreamingSnakeCase, + PascalCase, + } + + impl FerrisFix { + const fn as_str(self) -> &'static str { + match self { + FerrisFix::SnakeCase => "ferris", + FerrisFix::ScreamingSnakeCase => "FERRIS", + FerrisFix::PascalCase => "Ferris", + } + } + } + let first_span = spans[0]; - sess.dcx().emit_err(errors::FerrisIdentifier { spans, first_span }); + let prev_source = sess.psess.source_map().span_to_prev_source(first_span); + let ferris_fix = prev_source + .map_or(FerrisFix::SnakeCase, |source| { + let mut source_before_ferris = source.trim_end().split_whitespace().rev(); + match source_before_ferris.next() { + Some("struct" | "trait" | "mod" | "union" | "type" | "enum") => { + FerrisFix::PascalCase + } + Some("const" | "static") => FerrisFix::ScreamingSnakeCase, + Some("mut") if source_before_ferris.next() == Some("static") => { + FerrisFix::ScreamingSnakeCase + } + _ => FerrisFix::SnakeCase, + } + }) + .as_str(); + + sess.dcx().emit_err(errors::FerrisIdentifier { spans, first_span, ferris_fix }); } else { sess.dcx().emit_err(errors::EmojiIdentifier { spans, ident }); } diff --git a/tests/ui/parser/ferris-static-mut.rs b/tests/ui/parser/ferris-static-mut.rs new file mode 100644 index 000000000000..67186982691e --- /dev/null +++ b/tests/ui/parser/ferris-static-mut.rs @@ -0,0 +1,3 @@ +static mut 🦀: &str = "ferris!";//~ ERROR Ferris cannot be used as an identifier + +fn main() {} diff --git a/tests/ui/parser/ferris-static-mut.stderr b/tests/ui/parser/ferris-static-mut.stderr new file mode 100644 index 000000000000..6af85bbaf7da --- /dev/null +++ b/tests/ui/parser/ferris-static-mut.stderr @@ -0,0 +1,8 @@ +error: Ferris cannot be used as an identifier + --> $DIR/ferris-static-mut.rs:1:12 + | +LL | static mut 🦀: &str = "ferris!"; + | ^^ help: try using their name instead: `FERRIS` + +error: aborting due to 1 previous error + diff --git a/tests/ui/parser/ferris-struct.rs b/tests/ui/parser/ferris-struct.rs new file mode 100644 index 000000000000..581957fa7757 --- /dev/null +++ b/tests/ui/parser/ferris-struct.rs @@ -0,0 +1,3 @@ +struct 🦀 {}//~ ERROR Ferris cannot be used as an identifier + +fn main() {} diff --git a/tests/ui/parser/ferris-struct.stderr b/tests/ui/parser/ferris-struct.stderr new file mode 100644 index 000000000000..34fe28c62975 --- /dev/null +++ b/tests/ui/parser/ferris-struct.stderr @@ -0,0 +1,8 @@ +error: Ferris cannot be used as an identifier + --> $DIR/ferris-struct.rs:1:8 + | +LL | struct 🦀 {} + | ^^ help: try using their name instead: `Ferris` + +error: aborting due to 1 previous error + From 76d341fa09c423e601e2c47f8e4d165fcb7c21aa Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 18:37:58 +0000 Subject: [PATCH 224/255] Upgrade the compiler to edition 2024 --- compiler/rustc/Cargo.toml | 2 +- compiler/rustc_abi/Cargo.toml | 2 +- compiler/rustc_arena/Cargo.toml | 2 +- compiler/rustc_ast/Cargo.toml | 2 +- compiler/rustc_ast_ir/Cargo.toml | 2 +- compiler/rustc_ast_lowering/Cargo.toml | 2 +- compiler/rustc_ast_passes/Cargo.toml | 2 +- compiler/rustc_ast_pretty/Cargo.toml | 2 +- compiler/rustc_attr_data_structures/Cargo.toml | 2 +- compiler/rustc_attr_parsing/Cargo.toml | 2 +- compiler/rustc_baked_icu_data/Cargo.toml | 2 +- compiler/rustc_borrowck/Cargo.toml | 2 +- compiler/rustc_builtin_macros/Cargo.toml | 2 +- compiler/rustc_codegen_llvm/Cargo.toml | 2 +- compiler/rustc_codegen_ssa/Cargo.toml | 2 +- compiler/rustc_const_eval/Cargo.toml | 2 +- compiler/rustc_data_structures/Cargo.toml | 2 +- compiler/rustc_driver/Cargo.toml | 2 +- compiler/rustc_driver_impl/Cargo.toml | 2 +- compiler/rustc_error_codes/Cargo.toml | 2 +- compiler/rustc_error_messages/Cargo.toml | 2 +- compiler/rustc_errors/Cargo.toml | 2 +- compiler/rustc_expand/Cargo.toml | 2 +- compiler/rustc_feature/Cargo.toml | 2 +- compiler/rustc_fluent_macro/Cargo.toml | 2 +- compiler/rustc_fs_util/Cargo.toml | 2 +- compiler/rustc_graphviz/Cargo.toml | 2 +- compiler/rustc_hashes/Cargo.toml | 2 +- compiler/rustc_hir/Cargo.toml | 2 +- compiler/rustc_hir_analysis/Cargo.toml | 2 +- compiler/rustc_hir_pretty/Cargo.toml | 2 +- compiler/rustc_hir_typeck/Cargo.toml | 2 +- compiler/rustc_incremental/Cargo.toml | 2 +- compiler/rustc_index/Cargo.toml | 2 +- compiler/rustc_index_macros/Cargo.toml | 2 +- compiler/rustc_infer/Cargo.toml | 2 +- compiler/rustc_interface/Cargo.toml | 2 +- compiler/rustc_lexer/Cargo.toml | 2 +- compiler/rustc_lint/Cargo.toml | 2 +- compiler/rustc_lint_defs/Cargo.toml | 2 +- compiler/rustc_llvm/Cargo.toml | 2 +- compiler/rustc_log/Cargo.toml | 2 +- compiler/rustc_macros/Cargo.toml | 2 +- compiler/rustc_metadata/Cargo.toml | 2 +- compiler/rustc_middle/Cargo.toml | 2 +- compiler/rustc_mir_build/Cargo.toml | 2 +- compiler/rustc_mir_dataflow/Cargo.toml | 2 +- compiler/rustc_mir_transform/Cargo.toml | 2 +- compiler/rustc_monomorphize/Cargo.toml | 2 +- compiler/rustc_next_trait_solver/Cargo.toml | 2 +- compiler/rustc_parse/Cargo.toml | 2 +- compiler/rustc_parse_format/Cargo.toml | 2 +- compiler/rustc_passes/Cargo.toml | 2 +- compiler/rustc_pattern_analysis/Cargo.toml | 2 +- compiler/rustc_privacy/Cargo.toml | 2 +- compiler/rustc_query_impl/Cargo.toml | 2 +- compiler/rustc_query_system/Cargo.toml | 2 +- compiler/rustc_resolve/Cargo.toml | 2 +- compiler/rustc_sanitizers/Cargo.toml | 2 +- compiler/rustc_serialize/Cargo.toml | 2 +- compiler/rustc_session/Cargo.toml | 2 +- compiler/rustc_smir/Cargo.toml | 2 +- compiler/rustc_span/Cargo.toml | 2 +- compiler/rustc_symbol_mangling/Cargo.toml | 2 +- compiler/rustc_target/Cargo.toml | 2 +- compiler/rustc_trait_selection/Cargo.toml | 2 +- compiler/rustc_traits/Cargo.toml | 2 +- compiler/rustc_transmute/Cargo.toml | 2 +- compiler/rustc_ty_utils/Cargo.toml | 2 +- compiler/rustc_type_ir/Cargo.toml | 2 +- compiler/rustc_type_ir_macros/Cargo.toml | 2 +- compiler/stable_mir/Cargo.toml | 2 +- 72 files changed, 72 insertions(+), 72 deletions(-) diff --git a/compiler/rustc/Cargo.toml b/compiler/rustc/Cargo.toml index d24b630516a7..f4caa3ef769d 100644 --- a/compiler/rustc/Cargo.toml +++ b/compiler/rustc/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc-main" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_abi/Cargo.toml b/compiler/rustc_abi/Cargo.toml index 3d6f4a6a1092..86dc84e2016d 100644 --- a/compiler/rustc_abi/Cargo.toml +++ b/compiler/rustc_abi/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_abi" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_arena/Cargo.toml b/compiler/rustc_arena/Cargo.toml index 382ab2b07754..bbcd8ea6d389 100644 --- a/compiler/rustc_arena/Cargo.toml +++ b/compiler/rustc_arena/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_arena" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_ast/Cargo.toml b/compiler/rustc_ast/Cargo.toml index 34c612dac692..902287d03280 100644 --- a/compiler/rustc_ast/Cargo.toml +++ b/compiler/rustc_ast/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ast" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_ast_ir/Cargo.toml b/compiler/rustc_ast_ir/Cargo.toml index 1905574073f1..f54e9687d8c7 100644 --- a/compiler/rustc_ast_ir/Cargo.toml +++ b/compiler/rustc_ast_ir/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ast_ir" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_ast_lowering/Cargo.toml b/compiler/rustc_ast_lowering/Cargo.toml index ce95f4dfa1b8..3215ce6b0cb4 100644 --- a/compiler/rustc_ast_lowering/Cargo.toml +++ b/compiler/rustc_ast_lowering/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ast_lowering" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] doctest = false diff --git a/compiler/rustc_ast_passes/Cargo.toml b/compiler/rustc_ast_passes/Cargo.toml index e4c227532085..c738cb2aa2fd 100644 --- a/compiler/rustc_ast_passes/Cargo.toml +++ b/compiler/rustc_ast_passes/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ast_passes" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_ast_pretty/Cargo.toml b/compiler/rustc_ast_pretty/Cargo.toml index f290fedcd8b9..2634dd1fdf93 100644 --- a/compiler/rustc_ast_pretty/Cargo.toml +++ b/compiler/rustc_ast_pretty/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ast_pretty" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_attr_data_structures/Cargo.toml b/compiler/rustc_attr_data_structures/Cargo.toml index 2ee58f24470e..19d0d5a306d6 100644 --- a/compiler/rustc_attr_data_structures/Cargo.toml +++ b/compiler/rustc_attr_data_structures/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_attr_data_structures" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_attr_parsing/Cargo.toml b/compiler/rustc_attr_parsing/Cargo.toml index 7ccedf40c3fa..f681e9397d9f 100644 --- a/compiler/rustc_attr_parsing/Cargo.toml +++ b/compiler/rustc_attr_parsing/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_attr_parsing" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_baked_icu_data/Cargo.toml b/compiler/rustc_baked_icu_data/Cargo.toml index c35556dcf5bf..cb0e145386b8 100644 --- a/compiler/rustc_baked_icu_data/Cargo.toml +++ b/compiler/rustc_baked_icu_data/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_baked_icu_data" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_borrowck/Cargo.toml b/compiler/rustc_borrowck/Cargo.toml index 89154bf2c23c..9e7d55180a23 100644 --- a/compiler/rustc_borrowck/Cargo.toml +++ b/compiler/rustc_borrowck/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_borrowck" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_builtin_macros/Cargo.toml b/compiler/rustc_builtin_macros/Cargo.toml index b50cb35b8e98..f29be2ee8185 100644 --- a/compiler/rustc_builtin_macros/Cargo.toml +++ b/compiler/rustc_builtin_macros/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_builtin_macros" version = "0.0.0" -edition = "2021" +edition = "2024" [lints.rust] diff --git a/compiler/rustc_codegen_llvm/Cargo.toml b/compiler/rustc_codegen_llvm/Cargo.toml index a81722705488..d3ce7c5a1130 100644 --- a/compiler/rustc_codegen_llvm/Cargo.toml +++ b/compiler/rustc_codegen_llvm/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_codegen_llvm" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] test = false diff --git a/compiler/rustc_codegen_ssa/Cargo.toml b/compiler/rustc_codegen_ssa/Cargo.toml index 963d9258be67..83d847f2d155 100644 --- a/compiler/rustc_codegen_ssa/Cargo.toml +++ b/compiler/rustc_codegen_ssa/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_codegen_ssa" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_const_eval/Cargo.toml b/compiler/rustc_const_eval/Cargo.toml index 7717cd2c6966..a0cc2c65e6e0 100644 --- a/compiler/rustc_const_eval/Cargo.toml +++ b/compiler/rustc_const_eval/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_const_eval" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_data_structures/Cargo.toml b/compiler/rustc_data_structures/Cargo.toml index 1705af1e210a..bdf5494f2107 100644 --- a/compiler/rustc_data_structures/Cargo.toml +++ b/compiler/rustc_data_structures/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_data_structures" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_driver/Cargo.toml b/compiler/rustc_driver/Cargo.toml index ae9712ad66d8..e3ee83512952 100644 --- a/compiler/rustc_driver/Cargo.toml +++ b/compiler/rustc_driver/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_driver" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] crate-type = ["dylib"] diff --git a/compiler/rustc_driver_impl/Cargo.toml b/compiler/rustc_driver_impl/Cargo.toml index 0b45e5786e83..8593d1faba26 100644 --- a/compiler/rustc_driver_impl/Cargo.toml +++ b/compiler/rustc_driver_impl/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_driver_impl" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_error_codes/Cargo.toml b/compiler/rustc_error_codes/Cargo.toml index de668b81b7e0..55b4e8990512 100644 --- a/compiler/rustc_error_codes/Cargo.toml +++ b/compiler/rustc_error_codes/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_error_codes" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_error_messages/Cargo.toml b/compiler/rustc_error_messages/Cargo.toml index 6974c12f994b..578af7fc51d4 100644 --- a/compiler/rustc_error_messages/Cargo.toml +++ b/compiler/rustc_error_messages/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_error_messages" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml index 434f8c1c7675..c1d8cd9bb9ed 100644 --- a/compiler/rustc_errors/Cargo.toml +++ b/compiler/rustc_errors/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_errors" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_expand/Cargo.toml b/compiler/rustc_expand/Cargo.toml index eb93972387d4..33bada106ca7 100644 --- a/compiler/rustc_expand/Cargo.toml +++ b/compiler/rustc_expand/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_expand" version = "0.0.0" -edition = "2021" +edition = "2024" build = false [lib] diff --git a/compiler/rustc_feature/Cargo.toml b/compiler/rustc_feature/Cargo.toml index 77de7fabd4f9..a5ae06473cbe 100644 --- a/compiler/rustc_feature/Cargo.toml +++ b/compiler/rustc_feature/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_feature" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_fluent_macro/Cargo.toml b/compiler/rustc_fluent_macro/Cargo.toml index eeceaa4691a2..ce76b2745eaa 100644 --- a/compiler/rustc_fluent_macro/Cargo.toml +++ b/compiler/rustc_fluent_macro/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_fluent_macro" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] proc-macro = true diff --git a/compiler/rustc_fs_util/Cargo.toml b/compiler/rustc_fs_util/Cargo.toml index 4b76200c06c5..baca3bc7d49e 100644 --- a/compiler/rustc_fs_util/Cargo.toml +++ b/compiler/rustc_fs_util/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_fs_util" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_graphviz/Cargo.toml b/compiler/rustc_graphviz/Cargo.toml index 780004ae3fbc..d84943760bae 100644 --- a/compiler/rustc_graphviz/Cargo.toml +++ b/compiler/rustc_graphviz/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_graphviz" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_hashes/Cargo.toml b/compiler/rustc_hashes/Cargo.toml index c2bae2fe8cb0..c7a273cff88c 100644 --- a/compiler/rustc_hashes/Cargo.toml +++ b/compiler/rustc_hashes/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_hashes" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_hir/Cargo.toml b/compiler/rustc_hir/Cargo.toml index b1516e53173b..98300fc40fbe 100644 --- a/compiler/rustc_hir/Cargo.toml +++ b/compiler/rustc_hir/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_hir" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_hir_analysis/Cargo.toml b/compiler/rustc_hir_analysis/Cargo.toml index 196d7d99e933..55a816a855af 100644 --- a/compiler/rustc_hir_analysis/Cargo.toml +++ b/compiler/rustc_hir_analysis/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_hir_analysis" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] test = false diff --git a/compiler/rustc_hir_pretty/Cargo.toml b/compiler/rustc_hir_pretty/Cargo.toml index 9af1fb8279e9..f5d7dbd3f96e 100644 --- a/compiler/rustc_hir_pretty/Cargo.toml +++ b/compiler/rustc_hir_pretty/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_hir_pretty" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_hir_typeck/Cargo.toml b/compiler/rustc_hir_typeck/Cargo.toml index 0331a20f95b7..f1afb7b712d5 100644 --- a/compiler/rustc_hir_typeck/Cargo.toml +++ b/compiler/rustc_hir_typeck/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_hir_typeck" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_incremental/Cargo.toml b/compiler/rustc_incremental/Cargo.toml index 46a63b02e846..a2f88f19f532 100644 --- a/compiler/rustc_incremental/Cargo.toml +++ b/compiler/rustc_incremental/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_incremental" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_index/Cargo.toml b/compiler/rustc_index/Cargo.toml index f27db7a5400a..3d83a3c98daf 100644 --- a/compiler/rustc_index/Cargo.toml +++ b/compiler/rustc_index/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_index" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_index_macros/Cargo.toml b/compiler/rustc_index_macros/Cargo.toml index 98bc1b6a29bb..891e7ded6199 100644 --- a/compiler/rustc_index_macros/Cargo.toml +++ b/compiler/rustc_index_macros/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_index_macros" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] proc-macro = true diff --git a/compiler/rustc_infer/Cargo.toml b/compiler/rustc_infer/Cargo.toml index baf5dbbfd422..08c036148849 100644 --- a/compiler/rustc_infer/Cargo.toml +++ b/compiler/rustc_infer/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_infer" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] doctest = false diff --git a/compiler/rustc_interface/Cargo.toml b/compiler/rustc_interface/Cargo.toml index 295a988d2da5..9c9660cf5046 100644 --- a/compiler/rustc_interface/Cargo.toml +++ b/compiler/rustc_interface/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_interface" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_lexer/Cargo.toml b/compiler/rustc_lexer/Cargo.toml index 4b3492fdeda2..448a50faf458 100644 --- a/compiler/rustc_lexer/Cargo.toml +++ b/compiler/rustc_lexer/Cargo.toml @@ -2,7 +2,7 @@ name = "rustc_lexer" version = "0.0.0" license = "MIT OR Apache-2.0" -edition = "2021" +edition = "2024" repository = "https://github.com/rust-lang/rust/" description = """ Rust lexer used by rustc. No stability guarantees are provided. diff --git a/compiler/rustc_lint/Cargo.toml b/compiler/rustc_lint/Cargo.toml index cc5a90296332..24e7b40c8a2d 100644 --- a/compiler/rustc_lint/Cargo.toml +++ b/compiler/rustc_lint/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_lint" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_lint_defs/Cargo.toml b/compiler/rustc_lint_defs/Cargo.toml index 450885e71647..9ab350daf69d 100644 --- a/compiler/rustc_lint_defs/Cargo.toml +++ b/compiler/rustc_lint_defs/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_lint_defs" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_llvm/Cargo.toml b/compiler/rustc_llvm/Cargo.toml index 2168a0df9ec8..4f3ce77efc44 100644 --- a/compiler/rustc_llvm/Cargo.toml +++ b/compiler/rustc_llvm/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_llvm" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_log/Cargo.toml b/compiler/rustc_log/Cargo.toml index fe399bc77e32..30f6e9ba8053 100644 --- a/compiler/rustc_log/Cargo.toml +++ b/compiler/rustc_log/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_log" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_macros/Cargo.toml b/compiler/rustc_macros/Cargo.toml index d8d2bef49640..f9d3b7583590 100644 --- a/compiler/rustc_macros/Cargo.toml +++ b/compiler/rustc_macros/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_macros" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] proc-macro = true diff --git a/compiler/rustc_metadata/Cargo.toml b/compiler/rustc_metadata/Cargo.toml index 0b9fdbbd3da8..a8821640f048 100644 --- a/compiler/rustc_metadata/Cargo.toml +++ b/compiler/rustc_metadata/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_metadata" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_middle/Cargo.toml b/compiler/rustc_middle/Cargo.toml index 389c861c3b52..aebd2181f31e 100644 --- a/compiler/rustc_middle/Cargo.toml +++ b/compiler/rustc_middle/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_middle" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_mir_build/Cargo.toml b/compiler/rustc_mir_build/Cargo.toml index 1f3689926bcf..d70d70a31a4a 100644 --- a/compiler/rustc_mir_build/Cargo.toml +++ b/compiler/rustc_mir_build/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_mir_build" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_mir_dataflow/Cargo.toml b/compiler/rustc_mir_dataflow/Cargo.toml index f84a06638976..293bcbef21b8 100644 --- a/compiler/rustc_mir_dataflow/Cargo.toml +++ b/compiler/rustc_mir_dataflow/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_mir_dataflow" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_mir_transform/Cargo.toml b/compiler/rustc_mir_transform/Cargo.toml index 2f233f787f0c..fb8d0ac5e74a 100644 --- a/compiler/rustc_mir_transform/Cargo.toml +++ b/compiler/rustc_mir_transform/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_mir_transform" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_monomorphize/Cargo.toml b/compiler/rustc_monomorphize/Cargo.toml index 5462105e5e8e..36b76d261de6 100644 --- a/compiler/rustc_monomorphize/Cargo.toml +++ b/compiler/rustc_monomorphize/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_monomorphize" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_next_trait_solver/Cargo.toml b/compiler/rustc_next_trait_solver/Cargo.toml index eacb6002f5a4..63aa60f2f26b 100644 --- a/compiler/rustc_next_trait_solver/Cargo.toml +++ b/compiler/rustc_next_trait_solver/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_next_trait_solver" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_parse/Cargo.toml b/compiler/rustc_parse/Cargo.toml index 2360914a0aba..c9dcab0c871d 100644 --- a/compiler/rustc_parse/Cargo.toml +++ b/compiler/rustc_parse/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_parse" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_parse_format/Cargo.toml b/compiler/rustc_parse_format/Cargo.toml index 707c4e318474..a39cca716d23 100644 --- a/compiler/rustc_parse_format/Cargo.toml +++ b/compiler/rustc_parse_format/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_parse_format" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_passes/Cargo.toml b/compiler/rustc_passes/Cargo.toml index f592a12ab75c..ba81ef3103bd 100644 --- a/compiler/rustc_passes/Cargo.toml +++ b/compiler/rustc_passes/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_passes" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_pattern_analysis/Cargo.toml b/compiler/rustc_pattern_analysis/Cargo.toml index 16eea9e4ff90..40d549630aca 100644 --- a/compiler/rustc_pattern_analysis/Cargo.toml +++ b/compiler/rustc_pattern_analysis/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_pattern_analysis" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_privacy/Cargo.toml b/compiler/rustc_privacy/Cargo.toml index eb48155919fe..242c67d732af 100644 --- a/compiler/rustc_privacy/Cargo.toml +++ b/compiler/rustc_privacy/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_privacy" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_query_impl/Cargo.toml b/compiler/rustc_query_impl/Cargo.toml index fd1d21b6a892..d89e1355ca67 100644 --- a/compiler/rustc_query_impl/Cargo.toml +++ b/compiler/rustc_query_impl/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_query_impl" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_query_system/Cargo.toml b/compiler/rustc_query_system/Cargo.toml index d9560f3eb0fa..839465f9273b 100644 --- a/compiler/rustc_query_system/Cargo.toml +++ b/compiler/rustc_query_system/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_query_system" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_resolve/Cargo.toml b/compiler/rustc_resolve/Cargo.toml index 309227176d4e..f4771f1af2cf 100644 --- a/compiler/rustc_resolve/Cargo.toml +++ b/compiler/rustc_resolve/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_resolve" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_sanitizers/Cargo.toml b/compiler/rustc_sanitizers/Cargo.toml index 5623a493cf00..66488bc96259 100644 --- a/compiler/rustc_sanitizers/Cargo.toml +++ b/compiler/rustc_sanitizers/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_sanitizers" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] bitflags = "2.5.0" diff --git a/compiler/rustc_serialize/Cargo.toml b/compiler/rustc_serialize/Cargo.toml index a6815c7a4476..948242352e7a 100644 --- a/compiler/rustc_serialize/Cargo.toml +++ b/compiler/rustc_serialize/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_serialize" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_session/Cargo.toml b/compiler/rustc_session/Cargo.toml index 31892c134380..a087725d34dd 100644 --- a/compiler/rustc_session/Cargo.toml +++ b/compiler/rustc_session/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_session" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_smir/Cargo.toml b/compiler/rustc_smir/Cargo.toml index 29ce24e8b784..a11df9a9c9bc 100644 --- a/compiler/rustc_smir/Cargo.toml +++ b/compiler/rustc_smir/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_smir" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_span/Cargo.toml b/compiler/rustc_span/Cargo.toml index 991c75cc98df..43a2d692577e 100644 --- a/compiler/rustc_span/Cargo.toml +++ b/compiler/rustc_span/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_span" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_symbol_mangling/Cargo.toml b/compiler/rustc_symbol_mangling/Cargo.toml index 4c51c908f541..12fe6b719f9b 100644 --- a/compiler/rustc_symbol_mangling/Cargo.toml +++ b/compiler/rustc_symbol_mangling/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_symbol_mangling" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_target/Cargo.toml b/compiler/rustc_target/Cargo.toml index e33431ba1225..189b19b02861 100644 --- a/compiler/rustc_target/Cargo.toml +++ b/compiler/rustc_target/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_target" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_trait_selection/Cargo.toml b/compiler/rustc_trait_selection/Cargo.toml index 2f2361609a26..1c61e23362a8 100644 --- a/compiler/rustc_trait_selection/Cargo.toml +++ b/compiler/rustc_trait_selection/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_trait_selection" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_traits/Cargo.toml b/compiler/rustc_traits/Cargo.toml index 9c788116d98c..04aef4e7b9e0 100644 --- a/compiler/rustc_traits/Cargo.toml +++ b/compiler/rustc_traits/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_traits" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_transmute/Cargo.toml b/compiler/rustc_transmute/Cargo.toml index 94c7695117c6..e9daf6b0c384 100644 --- a/compiler/rustc_transmute/Cargo.toml +++ b/compiler/rustc_transmute/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_transmute" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_ty_utils/Cargo.toml b/compiler/rustc_ty_utils/Cargo.toml index ab903c6ed73f..4c7a57f2931b 100644 --- a/compiler/rustc_ty_utils/Cargo.toml +++ b/compiler/rustc_ty_utils/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_ty_utils" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_type_ir/Cargo.toml b/compiler/rustc_type_ir/Cargo.toml index 8d97ec728304..d8184da927c3 100644 --- a/compiler/rustc_type_ir/Cargo.toml +++ b/compiler/rustc_type_ir/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_type_ir" version = "0.0.0" -edition = "2021" +edition = "2024" [dependencies] # tidy-alphabetical-start diff --git a/compiler/rustc_type_ir_macros/Cargo.toml b/compiler/rustc_type_ir_macros/Cargo.toml index cb95ca683462..15a555750992 100644 --- a/compiler/rustc_type_ir_macros/Cargo.toml +++ b/compiler/rustc_type_ir_macros/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "rustc_type_ir_macros" version = "0.0.0" -edition = "2021" +edition = "2024" [lib] proc-macro = true diff --git a/compiler/stable_mir/Cargo.toml b/compiler/stable_mir/Cargo.toml index 2edb3f140d7a..d691a0e4f22f 100644 --- a/compiler/stable_mir/Cargo.toml +++ b/compiler/stable_mir/Cargo.toml @@ -1,7 +1,7 @@ [package] name = "stable_mir" version = "0.1.0-preview" -edition = "2021" +edition = "2024" [dependencies] scoped-tls = "1.0" From 7f6873f64c17cfa53a10a7751c7213f6ed0215c1 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Wed, 18 Sep 2024 15:39:23 -0400 Subject: [PATCH 225/255] Fix builtin lints --- compiler/rustc_lint/src/builtin.rs | 6 ++---- compiler/rustc_lint/src/foreign_modules.rs | 4 ++-- compiler/rustc_lint/src/types.rs | 2 +- compiler/rustc_lint_defs/src/builtin.rs | 8 ++++---- 4 files changed, 9 insertions(+), 11 deletions(-) diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index b5f09ff346a7..681a76e26f0f 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -975,10 +975,8 @@ declare_lint! { /// ### Example /// /// ```rust - /// #[no_mangle] - /// fn foo(t: T) { - /// - /// } + /// #[unsafe(no_mangle)] + /// fn foo(t: T) {} /// ``` /// /// {{produces}} diff --git a/compiler/rustc_lint/src/foreign_modules.rs b/compiler/rustc_lint/src/foreign_modules.rs index 636779fe9b4c..49c34d0edcc2 100644 --- a/compiler/rustc_lint/src/foreign_modules.rs +++ b/compiler/rustc_lint/src/foreign_modules.rs @@ -35,12 +35,12 @@ declare_lint! { /// /// ```rust /// mod m { - /// extern "C" { + /// unsafe extern "C" { /// fn foo(); /// } /// } /// - /// extern "C" { + /// unsafe extern "C" { /// fn foo(_: u32); /// } /// ``` diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 68b1f435a4cf..7e242a9f5671 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -696,7 +696,7 @@ declare_lint! { /// ### Example /// /// ```rust - /// extern "C" { + /// unsafe extern "C" { /// static STATIC: String; /// } /// ``` diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 10bf4ec77ed9..97850a2afc11 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -2780,7 +2780,7 @@ declare_lint! { /// /// ```rust /// enum Void {} - /// extern { + /// unsafe extern { /// static EXTERN: Void; /// } /// ``` @@ -4011,7 +4011,7 @@ declare_lint! { /// ```rust /// #![warn(ffi_unwind_calls)] /// - /// extern "C-unwind" { + /// unsafe extern "C-unwind" { /// fn foo(); /// } /// @@ -4755,7 +4755,7 @@ declare_lint! { /// /// ### Example /// - /// ```rust + /// ```rust,edition2021 /// #![warn(missing_unsafe_on_extern)] /// #![allow(dead_code)] /// @@ -4792,7 +4792,7 @@ declare_lint! { /// /// ### Example /// - /// ```rust + /// ```rust,edition2021 /// #![warn(unsafe_attr_outside_unsafe)] /// /// #[no_mangle] From e1819a889a2606b79dc9cc790205da1497d617b7 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 18:28:42 +0000 Subject: [PATCH 226/255] Fix overcapturing, unsafe extern blocks, and new unsafe ops --- compiler/rustc/src/main.rs | 2 +- .../rustc_borrowck/src/universal_regions.rs | 2 +- .../rustc_codegen_llvm/src/llvm/enzyme_ffi.rs | 4 ++-- .../src/graph/scc/mod.rs | 2 +- compiler/rustc_expand/src/proc_macro.rs | 2 +- compiler/rustc_interface/src/passes.rs | 20 +++++++++++-------- compiler/rustc_llvm/build.rs | 8 ++++++-- 7 files changed, 24 insertions(+), 16 deletions(-) diff --git a/compiler/rustc/src/main.rs b/compiler/rustc/src/main.rs index a55a63a7bf17..ca1bb59e59d6 100644 --- a/compiler/rustc/src/main.rs +++ b/compiler/rustc/src/main.rs @@ -65,7 +65,7 @@ fn main() { // linking, so we need to explicitly depend on the function. #[cfg(target_os = "macos")] { - extern "C" { + unsafe extern "C" { fn _rjem_je_zone_register(); } diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 9a68eeb3326e..c578eb4dc458 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -308,7 +308,7 @@ impl<'tcx> UniversalRegions<'tcx> { /// Returns an iterator over all the RegionVids corresponding to /// universally quantified free regions. - pub(crate) fn universal_regions_iter(&self) -> impl Iterator { + pub(crate) fn universal_regions_iter(&self) -> impl Iterator + use<> { (FIRST_GLOBAL_INDEX..self.num_universals).map(RegionVid::from_usize) } diff --git a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs index 39bac13a9680..9c740ab98688 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs @@ -7,7 +7,7 @@ use super::ffi::{BasicBlock, Metadata, Module, Type, Value}; use crate::llvm::Bool; #[link(name = "llvm-wrapper", kind = "static")] -extern "C" { +unsafe extern "C" { // Enzyme pub(crate) fn LLVMRustHasMetadata(I: &Value, KindID: c_uint) -> bool; pub(crate) fn LLVMRustEraseInstUntilInclusive(BB: &BasicBlock, I: &Value); @@ -18,7 +18,7 @@ extern "C" { pub(crate) fn LLVMRustVerifyFunction(V: &Value, action: LLVMRustVerifierFailureAction) -> Bool; } -extern "C" { +unsafe extern "C" { // Enzyme pub(crate) fn LLVMDumpModule(M: &Module); pub(crate) fn LLVMDumpValue(V: &Value); diff --git a/compiler/rustc_data_structures/src/graph/scc/mod.rs b/compiler/rustc_data_structures/src/graph/scc/mod.rs index 93f6192b10b0..2241b538738c 100644 --- a/compiler/rustc_data_structures/src/graph/scc/mod.rs +++ b/compiler/rustc_data_structures/src/graph/scc/mod.rs @@ -133,7 +133,7 @@ impl Sccs { /// meaning that if `S1 -> S2`, we will visit `S2` first and `S1` after. /// This is convenient when the edges represent dependencies: when you visit /// `S1`, the value for `S2` will already have been computed. - pub fn all_sccs(&self) -> impl Iterator { + pub fn all_sccs(&self) -> impl Iterator + use { (0..self.scc_data.len()).map(S::new) } diff --git a/compiler/rustc_expand/src/proc_macro.rs b/compiler/rustc_expand/src/proc_macro.rs index dca0516f9f3b..814d2b04d8d0 100644 --- a/compiler/rustc_expand/src/proc_macro.rs +++ b/compiler/rustc_expand/src/proc_macro.rs @@ -31,7 +31,7 @@ impl pm::bridge::server::MessagePipe for MessagePipe { } } -fn exec_strategy(ecx: &ExtCtxt<'_>) -> impl pm::bridge::server::ExecutionStrategy { +fn exec_strategy(ecx: &ExtCtxt<'_>) -> impl pm::bridge::server::ExecutionStrategy + use<> { pm::bridge::server::MaybeCrossThread::>::new( ecx.sess.opts.unstable_opts.proc_macro_execution_strategy == ProcMacroExecutionStrategy::CrossThread, diff --git a/compiler/rustc_interface/src/passes.rs b/compiler/rustc_interface/src/passes.rs index d70d9d344b94..2d3c7f834e98 100644 --- a/compiler/rustc_interface/src/passes.rs +++ b/compiler/rustc_interface/src/passes.rs @@ -171,13 +171,15 @@ fn configure_and_expand( new_path.push(path); } } - env::set_var( - "PATH", - &env::join_paths( - new_path.iter().filter(|p| env::join_paths(iter::once(p)).is_ok()), - ) - .unwrap(), - ); + unsafe { + env::set_var( + "PATH", + &env::join_paths( + new_path.iter().filter(|p| env::join_paths(iter::once(p)).is_ok()), + ) + .unwrap(), + ); + } } // Create the config for macro expansion @@ -216,7 +218,9 @@ fn configure_and_expand( } if cfg!(windows) { - env::set_var("PATH", &old_path); + unsafe { + env::set_var("PATH", &old_path); + } } krate diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs index 48806888b43d..3d1f3b2cd4dd 100644 --- a/compiler/rustc_llvm/build.rs +++ b/compiler/rustc_llvm/build.rs @@ -51,9 +51,13 @@ fn detect_llvm_link() -> (&'static str, &'static str) { fn restore_library_path() { let key = tracked_env_var_os("REAL_LIBRARY_PATH_VAR").expect("REAL_LIBRARY_PATH_VAR"); if let Some(env) = tracked_env_var_os("REAL_LIBRARY_PATH") { - env::set_var(&key, env); + unsafe { + env::set_var(&key, env); + } } else { - env::remove_var(&key); + unsafe { + env::remove_var(&key); + } } } From 681c95c55c449a20c0abe8aadc55b0677cabaa25 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 17:36:35 +0000 Subject: [PATCH 227/255] Remove UnifyReceiver cause code --- .../rustc_hir_typeck/src/method/confirm.rs | 14 +-- compiler/rustc_middle/src/traits/mod.rs | 10 -- .../nice_region_error/static_impl_trait.rs | 112 ++---------------- .../src/error_reporting/traits/suggestions.rs | 1 - 4 files changed, 12 insertions(+), 125 deletions(-) diff --git a/compiler/rustc_hir_typeck/src/method/confirm.rs b/compiler/rustc_hir_typeck/src/method/confirm.rs index 8fb425ff0c94..3b107fbf1739 100644 --- a/compiler/rustc_hir_typeck/src/method/confirm.rs +++ b/compiler/rustc_hir_typeck/src/method/confirm.rs @@ -11,7 +11,7 @@ use rustc_hir_analysis::hir_ty_lowering::{ }; use rustc_infer::infer::{self, DefineOpaqueTypes, InferOk}; use rustc_lint::builtin::SUPERTRAIT_ITEM_SHADOWING_USAGE; -use rustc_middle::traits::{ObligationCauseCode, UnifyReceiverContext}; +use rustc_middle::traits::ObligationCauseCode; use rustc_middle::ty::adjustment::{ Adjust, Adjustment, AllowTwoPhase, AutoBorrow, AutoBorrowMutability, PointerCoercion, }; @@ -136,7 +136,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> { "confirm: self_ty={:?} method_sig_rcvr={:?} method_sig={:?} method_predicates={:?}", self_ty, method_sig_rcvr, method_sig, method_predicates ); - self.unify_receivers(self_ty, method_sig_rcvr, pick, all_args); + self.unify_receivers(self_ty, method_sig_rcvr, pick); let (method_sig, method_predicates) = self.normalize(self.span, (method_sig, method_predicates)); @@ -525,20 +525,12 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> { self_ty: Ty<'tcx>, method_self_ty: Ty<'tcx>, pick: &probe::Pick<'tcx>, - args: GenericArgsRef<'tcx>, ) { debug!( "unify_receivers: self_ty={:?} method_self_ty={:?} span={:?} pick={:?}", self_ty, method_self_ty, self.span, pick ); - let cause = self.cause( - self.self_expr.span, - ObligationCauseCode::UnifyReceiver(Box::new(UnifyReceiverContext { - assoc_item: pick.item, - param_env: self.param_env, - args, - })), - ); + let cause = self.cause(self.self_expr.span, ObligationCauseCode::Misc); match self.at(&cause, self.param_env).sup(DefineOpaqueTypes::Yes, method_self_ty, self_ty) { Ok(InferOk { obligations, value: () }) => { self.register_predicates(obligations); diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 53bc9eb7e466..a2cc5221d00e 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -144,14 +144,6 @@ impl<'tcx> ObligationCause<'tcx> { } } -#[derive(Clone, Debug, PartialEq, Eq, HashStable, TyEncodable, TyDecodable)] -#[derive(TypeVisitable, TypeFoldable)] -pub struct UnifyReceiverContext<'tcx> { - pub assoc_item: ty::AssocItem, - pub param_env: ty::ParamEnv<'tcx>, - pub args: GenericArgsRef<'tcx>, -} - /// A compact form of `ObligationCauseCode`. #[derive(Clone, PartialEq, Eq, Default, HashStable)] #[derive(TypeVisitable, TypeFoldable, TyEncodable, TyDecodable)] @@ -360,8 +352,6 @@ pub enum ObligationCauseCode<'tcx> { /// Method receiver MethodReceiver, - UnifyReceiver(Box>), - /// `return` with no expression ReturnNoExpression, diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index 3f15a79271d5..b6ada8dfbf8e 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -8,20 +8,17 @@ use rustc_hir::{ self as hir, AmbigArg, GenericBound, GenericParam, GenericParamKind, Item, ItemKind, Lifetime, LifetimeName, LifetimeParamKind, MissingLifetimeKind, Node, TyKind, }; -use rustc_middle::ty::{ - self, AssocItemContainer, StaticLifetimeVisitor, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor, -}; +use rustc_middle::ty::{self, StaticLifetimeVisitor, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor}; use rustc_span::def_id::LocalDefId; use rustc_span::{Ident, Span}; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; use crate::errors::{ - ButCallingIntroduces, ButNeedsToSatisfy, DynTraitConstraintSuggestion, MoreTargeted, - ReqIntroducedLocations, + ButNeedsToSatisfy, DynTraitConstraintSuggestion, MoreTargeted, ReqIntroducedLocations, }; use crate::infer::{RegionResolutionError, SubregionOrigin, TypeTrace}; -use crate::traits::{ObligationCauseCode, UnifyReceiverContext}; +use crate::traits::ObligationCauseCode; impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { /// Print the error message for lifetime errors when the return type is a static `impl Trait`, @@ -39,52 +36,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { sup_r, spans, ) if sub_r.is_static() => (var_origin, sub_origin, sub_r, sup_origin, sup_r, spans), - RegionResolutionError::ConcreteFailure( - SubregionOrigin::Subtype(box TypeTrace { cause, .. }), - sub_r, - sup_r, - ) if sub_r.is_static() => { - // This is for an implicit `'static` requirement coming from `impl dyn Trait {}`. - if let ObligationCauseCode::UnifyReceiver(ctxt) = cause.code() { - // This may have a closure and it would cause ICE - // through `find_param_with_region` (#78262). - let anon_reg_sup = tcx.is_suitable_region(self.generic_param_scope, *sup_r)?; - let fn_returns = tcx.return_type_impl_or_dyn_traits(anon_reg_sup.scope); - if fn_returns.is_empty() { - return None; - } - - let param = self.find_param_with_region(*sup_r, *sub_r)?; - let simple_ident = param.param.pat.simple_ident(); - - let (has_impl_path, impl_path) = match ctxt.assoc_item.container { - AssocItemContainer::Trait => { - let id = ctxt.assoc_item.container_id(tcx); - (true, tcx.def_path_str(id)) - } - AssocItemContainer::Impl => (false, String::new()), - }; - - let mut err = self.tcx().dcx().create_err(ButCallingIntroduces { - param_ty_span: param.param_ty_span, - cause_span: cause.span, - has_param_name: simple_ident.is_some(), - param_name: simple_ident.map(|x| x.to_string()).unwrap_or_default(), - has_lifetime: sup_r.has_name(), - lifetime: sup_r.to_string(), - assoc_item: ctxt.assoc_item.name, - has_impl_path, - impl_path, - }); - if self.find_impl_on_dyn_trait(&mut err, param.param_ty, ctxt) { - let reported = err.emit(); - return Some(reported); - } else { - err.cancel() - } - } - return None; - } _ => return None, }; debug!( @@ -198,25 +149,14 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let fn_returns = tcx.return_type_impl_or_dyn_traits(anon_reg_sup.scope); let mut override_error_code = None; - if let SubregionOrigin::Subtype(box TypeTrace { cause, .. }) = &sup_origin - && let ObligationCauseCode::UnifyReceiver(ctxt) = cause.code() - // Handle case of `impl Foo for dyn Bar { fn qux(&self) {} }` introducing a - // `'static` lifetime when called as a method on a binding: `bar.qux()`. - && self.find_impl_on_dyn_trait(&mut err, param.param_ty, ctxt) - { - override_error_code = Some(ctxt.assoc_item.name); - } if let SubregionOrigin::Subtype(box TypeTrace { cause, .. }) = &sub_origin && let code = match cause.code() { ObligationCauseCode::MatchImpl(parent, ..) => parent.code(), _ => cause.code(), } - && let ( - &ObligationCauseCode::WhereClause(item_def_id, _) - | &ObligationCauseCode::WhereClauseInExpr(item_def_id, ..), - None, - ) = (code, override_error_code) + && let &ObligationCauseCode::WhereClause(item_def_id, _) + | &ObligationCauseCode::WhereClauseInExpr(item_def_id, ..) = code { // Same case of `impl Foo for dyn Bar { fn qux(&self) {} }` introducing a `'static` // lifetime as above, but called using a fully-qualified path to the method: @@ -230,7 +170,9 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { override_error_code = Some(ident.name); } } - if let (Some(ident), true) = (override_error_code, fn_returns.is_empty()) { + if let Some(ident) = override_error_code + && fn_returns.is_empty() + { // Provide a more targeted error code and description. let retarget_subdiag = MoreTargeted { ident }; retarget_subdiag.add_to_diag(&mut err); @@ -495,8 +437,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { kind: ItemKind::Impl(hir::Impl { self_ty, .. }), .. }) = tcx.hir_node_by_def_id(impl_did) && trait_objects.iter().all(|did| { - // FIXME: we should check `self_ty` against the receiver - // type in the `UnifyReceiver` context, but for now, use + // FIXME: we should check `self_ty`, but for now, use // this imperfect proxy. This will fail if there are // multiple `impl`s for the same trait like // `impl Foo for Box` and `impl Foo for dyn Bar`. @@ -517,41 +458,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { } } - /// When we call a method coming from an `impl Foo for dyn Bar`, `dyn Bar` introduces a default - /// `'static` obligation. Suggest relaxing that implicit bound. - fn find_impl_on_dyn_trait( - &self, - err: &mut Diag<'_>, - ty: Ty<'_>, - ctxt: &UnifyReceiverContext<'tcx>, - ) -> bool { - let tcx = self.tcx(); - - // Find the method being called. - let Ok(Some(instance)) = ty::Instance::try_resolve( - tcx, - self.cx.typing_env(ctxt.param_env), - ctxt.assoc_item.def_id, - self.cx.resolve_vars_if_possible(ctxt.args), - ) else { - return false; - }; - - let mut v = TraitObjectVisitor(FxIndexSet::default()); - v.visit_ty(ty); - - // Get the `Ident` of the method being called and the corresponding `impl` (to point at - // `Bar` in `impl Foo for dyn Bar {}` and the definition of the method being called). - let Some((ident, self_ty)) = - NiceRegionError::get_impl_ident_and_self_ty_from_trait(tcx, instance.def_id(), &v.0) - else { - return false; - }; - - // Find the trait object types in the argument, so we point at *only* the trait object. - self.suggest_constrain_dyn_trait_in_impl(err, &v.0, ident, self_ty) - } - fn suggest_constrain_dyn_trait_in_impl( &self, err: &mut Diag<'_>, diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index 6eeb47a21f8d..496a28cd39fd 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -2680,7 +2680,6 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { | ObligationCauseCode::IntrinsicType | ObligationCauseCode::MethodReceiver | ObligationCauseCode::ReturnNoExpression - | ObligationCauseCode::UnifyReceiver(..) | ObligationCauseCode::Misc | ObligationCauseCode::WellFormed(..) | ObligationCauseCode::MatchImpl(..) From 9001e5530221de3bb89d59a0ad36c45dcd40077f Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 17:39:55 +0000 Subject: [PATCH 228/255] More dead code --- .../nice_region_error/static_impl_trait.rs | 57 +------------------ compiler/rustc_trait_selection/src/errors.rs | 16 ------ 2 files changed, 2 insertions(+), 71 deletions(-) diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index b6ada8dfbf8e..9fed03859f86 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -1,7 +1,7 @@ //! Error Reporting for static impl Traits. use rustc_data_structures::fx::FxIndexSet; -use rustc_errors::{Applicability, Diag, ErrorGuaranteed, MultiSpan, Subdiagnostic}; +use rustc_errors::{Applicability, Diag, ErrorGuaranteed, MultiSpan}; use rustc_hir::def_id::DefId; use rustc_hir::intravisit::{Visitor, VisitorExt, walk_ty}; use rustc_hir::{ @@ -14,9 +14,7 @@ use rustc_span::{Ident, Span}; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; -use crate::errors::{ - ButNeedsToSatisfy, DynTraitConstraintSuggestion, MoreTargeted, ReqIntroducedLocations, -}; +use crate::errors::{ButNeedsToSatisfy, ReqIntroducedLocations}; use crate::infer::{RegionResolutionError, SubregionOrigin, TypeTrace}; use crate::traits::ObligationCauseCode; @@ -148,36 +146,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { let fn_returns = tcx.return_type_impl_or_dyn_traits(anon_reg_sup.scope); - let mut override_error_code = None; - - if let SubregionOrigin::Subtype(box TypeTrace { cause, .. }) = &sub_origin - && let code = match cause.code() { - ObligationCauseCode::MatchImpl(parent, ..) => parent.code(), - _ => cause.code(), - } - && let &ObligationCauseCode::WhereClause(item_def_id, _) - | &ObligationCauseCode::WhereClauseInExpr(item_def_id, ..) = code - { - // Same case of `impl Foo for dyn Bar { fn qux(&self) {} }` introducing a `'static` - // lifetime as above, but called using a fully-qualified path to the method: - // `Foo::qux(bar)`. - let mut v = TraitObjectVisitor(FxIndexSet::default()); - v.visit_ty(param.param_ty); - if let Some((ident, self_ty)) = - NiceRegionError::get_impl_ident_and_self_ty_from_trait(tcx, item_def_id, &v.0) - && self.suggest_constrain_dyn_trait_in_impl(&mut err, &v.0, ident, self_ty) - { - override_error_code = Some(ident.name); - } - } - if let Some(ident) = override_error_code - && fn_returns.is_empty() - { - // Provide a more targeted error code and description. - let retarget_subdiag = MoreTargeted { ident }; - retarget_subdiag.add_to_diag(&mut err); - } - let arg = match param.param.pat.simple_ident() { Some(simple_ident) => format!("argument `{simple_ident}`"), None => "the argument".to_string(), @@ -457,27 +425,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { _ => None, } } - - fn suggest_constrain_dyn_trait_in_impl( - &self, - err: &mut Diag<'_>, - found_dids: &FxIndexSet, - ident: Ident, - self_ty: &hir::Ty<'_>, - ) -> bool { - let mut suggested = false; - for found_did in found_dids { - let mut traits = vec![]; - let mut hir_v = HirTraitObjectVisitor(&mut traits, *found_did); - hir_v.visit_ty_unambig(self_ty); - for &span in &traits { - let subdiag = DynTraitConstraintSuggestion { span, ident }; - subdiag.add_to_diag(err); - suggested = true; - } - } - suggested - } } /// Collect all the trait objects in a type that could have received an implicit `'static` lifetime. diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index e8d30d3ee799..d0b944a93528 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -1119,22 +1119,6 @@ impl Subdiagnostic for ReqIntroducedLocations { } } -pub struct MoreTargeted { - pub ident: Symbol, -} - -impl Subdiagnostic for MoreTargeted { - fn add_to_diag_with>( - self, - diag: &mut Diag<'_, G>, - _f: &F, - ) { - diag.code(E0772); - diag.primary_message(fluent::trait_selection_more_targeted); - diag.arg("ident", self.ident); - } -} - #[derive(Diagnostic)] #[diag(trait_selection_but_needs_to_satisfy, code = E0759)] pub struct ButNeedsToSatisfy { From b2b2e53916cd505e1f7626581a4f0f5be1215201 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 17:41:55 +0000 Subject: [PATCH 229/255] Even more dead code -- we don't HIR regionck anymore --- compiler/rustc_trait_selection/messages.ftl | 8 ---- .../mismatched_static_lifetime.rs | 6 +-- .../nice_region_error/static_impl_trait.rs | 43 ++----------------- compiler/rustc_trait_selection/src/errors.rs | 3 -- 4 files changed, 5 insertions(+), 55 deletions(-) diff --git a/compiler/rustc_trait_selection/messages.ftl b/compiler/rustc_trait_selection/messages.ftl index 055a3edcc329..4db9d9915b13 100644 --- a/compiler/rustc_trait_selection/messages.ftl +++ b/compiler/rustc_trait_selection/messages.ftl @@ -225,14 +225,6 @@ trait_selection_mismatched_static_lifetime = incompatible lifetime on type trait_selection_missing_options_for_on_unimplemented_attr = missing options for `on_unimplemented` attribute .help = at least one of the `message`, `note` and `label` options are expected -trait_selection_more_targeted = {$has_param_name -> - [true] `{$param_name}` - *[false] `fn` parameter -} has {$has_lifetime -> - [true] lifetime `{$lifetime}` - *[false] an anonymous lifetime `'_` -} but calling `{$ident}` introduces an implicit `'static` lifetime requirement - trait_selection_msl_introduces_static = introduces a `'static` lifetime requirement trait_selection_msl_unmet_req = because this has an unmet lifetime requirement diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/mismatched_static_lifetime.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/mismatched_static_lifetime.rs index ad2f7f00fa53..0904177ea8bb 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/mismatched_static_lifetime.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/mismatched_static_lifetime.rs @@ -33,11 +33,7 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { }; // If we added a "points at argument expression" obligation, we remove it here, we care // about the original obligation only. - let code = match cause.code() { - ObligationCauseCode::FunctionArg { parent_code, .. } => &*parent_code, - code => code, - }; - let ObligationCauseCode::MatchImpl(parent, impl_def_id) = code else { + let ObligationCauseCode::MatchImpl(parent, impl_def_id) = cause.code() else { return None; }; let (ObligationCauseCode::WhereClause(_, binding_span) diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs index 9fed03859f86..083ce022238a 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/nice_region_error/static_impl_trait.rs @@ -1,22 +1,21 @@ //! Error Reporting for static impl Traits. use rustc_data_structures::fx::FxIndexSet; -use rustc_errors::{Applicability, Diag, ErrorGuaranteed, MultiSpan}; +use rustc_errors::{Applicability, Diag, ErrorGuaranteed}; use rustc_hir::def_id::DefId; use rustc_hir::intravisit::{Visitor, VisitorExt, walk_ty}; use rustc_hir::{ self as hir, AmbigArg, GenericBound, GenericParam, GenericParamKind, Item, ItemKind, Lifetime, LifetimeName, LifetimeParamKind, MissingLifetimeKind, Node, TyKind, }; -use rustc_middle::ty::{self, StaticLifetimeVisitor, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor}; +use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitor}; use rustc_span::def_id::LocalDefId; use rustc_span::{Ident, Span}; use tracing::debug; use crate::error_reporting::infer::nice_region_error::NiceRegionError; -use crate::errors::{ButNeedsToSatisfy, ReqIntroducedLocations}; -use crate::infer::{RegionResolutionError, SubregionOrigin, TypeTrace}; -use crate::traits::ObligationCauseCode; +use crate::errors::ButNeedsToSatisfy; +use crate::infer::{RegionResolutionError, SubregionOrigin}; impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { /// Print the error message for lifetime errors when the return type is a static `impl Trait`, @@ -89,39 +88,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { None }; - let mut subdiag = None; - - if let SubregionOrigin::Subtype(box TypeTrace { cause, .. }) = sub_origin { - if let ObligationCauseCode::ReturnValue(hir_id) - | ObligationCauseCode::BlockTailExpression(hir_id, ..) = cause.code() - { - let parent_id = tcx.hir_get_parent_item(*hir_id); - if let Some(fn_decl) = tcx.hir_fn_decl_by_hir_id(parent_id.into()) { - let mut span: MultiSpan = fn_decl.output.span().into(); - let mut spans = Vec::new(); - let mut add_label = true; - if let hir::FnRetTy::Return(ty) = fn_decl.output { - let mut v = StaticLifetimeVisitor(vec![], tcx.hir()); - v.visit_ty_unambig(ty); - if !v.0.is_empty() { - span = v.0.clone().into(); - spans = v.0; - add_label = false; - } - } - let fn_decl_span = fn_decl.output.span(); - - subdiag = Some(ReqIntroducedLocations { - span, - spans, - fn_decl_span, - cause_span: cause.span, - add_label, - }); - } - } - } - let diag = ButNeedsToSatisfy { sp, influencer_point, @@ -132,7 +98,6 @@ impl<'a, 'tcx> NiceRegionError<'a, 'tcx> { require_span_as_note: require_as_note.then_some(require_span), // We don't need a note, it's already at the end, it can be shown as a `span_label`. require_span_as_label: (!require_as_note).then_some(require_span), - req_introduces_loc: subdiag, has_lifetime: sup_r.has_name(), lifetime: lifetime_name.clone(), diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index d0b944a93528..01a92091fc3f 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -1135,9 +1135,6 @@ pub struct ButNeedsToSatisfy { #[note(trait_selection_introduced_by_bound)] pub bound: Option, - #[subdiagnostic] - pub req_introduces_loc: Option, - pub has_param_name: bool, pub param_name: String, pub spans_empty: bool, From 2a6daaf89a12dcb3467b057ec1a3d539623cd32c Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 05:33:06 +0000 Subject: [PATCH 230/255] Make asm a named field --- compiler/rustc_ast_lowering/src/item.rs | 4 +++- compiler/rustc_codegen_cranelift/src/global_asm.rs | 2 +- compiler/rustc_codegen_ssa/src/mono_item.rs | 2 +- compiler/rustc_hir/src/hir.rs | 6 +++--- compiler/rustc_hir/src/intravisit.rs | 2 +- compiler/rustc_hir/src/target.rs | 2 +- compiler/rustc_hir_analysis/src/check/check.rs | 2 +- compiler/rustc_hir_analysis/src/collect.rs | 2 +- .../rustc_hir_analysis/src/collect/resolve_bound_vars.rs | 2 +- compiler/rustc_hir_analysis/src/collect/type_of.rs | 6 +++--- compiler/rustc_hir_pretty/src/lib.rs | 2 +- compiler/rustc_hir_typeck/src/lib.rs | 2 +- compiler/rustc_incremental/src/persist/dirty_clean.rs | 2 +- compiler/rustc_lint/src/types.rs | 2 +- compiler/rustc_middle/src/hir/map.rs | 2 +- compiler/rustc_monomorphize/src/collector.rs | 2 +- compiler/rustc_passes/src/reachable.rs | 2 +- compiler/rustc_privacy/src/lib.rs | 2 +- src/librustdoc/html/render/span_map.rs | 2 +- src/librustdoc/visit_ast.rs | 2 +- .../clippy_lints/src/arbitrary_source_item_ordering.rs | 4 ++-- src/tools/clippy/clippy_lints/src/missing_doc.rs | 2 +- src/tools/clippy/clippy_lints/src/missing_inline.rs | 2 +- 23 files changed, 30 insertions(+), 28 deletions(-) diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index bc2db4154698..a7a03f7d6db9 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -251,7 +251,9 @@ impl<'hir> LoweringContext<'_, 'hir> { .arena .alloc_from_iter(fm.items.iter().map(|x| self.lower_foreign_item_ref(x))), }, - ItemKind::GlobalAsm(asm) => hir::ItemKind::GlobalAsm(self.lower_inline_asm(span, asm)), + ItemKind::GlobalAsm(asm) => { + hir::ItemKind::GlobalAsm { asm: self.lower_inline_asm(span, asm) } + } ItemKind::TyAlias(box TyAlias { generics, where_clauses, ty, .. }) => { // We lower // diff --git a/compiler/rustc_codegen_cranelift/src/global_asm.rs b/compiler/rustc_codegen_cranelift/src/global_asm.rs index 54745b0d8c10..0a23f63d6ba9 100644 --- a/compiler/rustc_codegen_cranelift/src/global_asm.rs +++ b/compiler/rustc_codegen_cranelift/src/global_asm.rs @@ -16,7 +16,7 @@ use crate::prelude::*; pub(crate) fn codegen_global_asm_item(tcx: TyCtxt<'_>, global_asm: &mut String, item_id: ItemId) { let item = tcx.hir_item(item_id); - if let rustc_hir::ItemKind::GlobalAsm(asm) = item.kind { + if let rustc_hir::ItemKind::GlobalAsm { asm } = item.kind { let is_x86 = matches!(tcx.sess.asm_arch.unwrap(), InlineAsmArch::X86 | InlineAsmArch::X86_64); diff --git a/compiler/rustc_codegen_ssa/src/mono_item.rs b/compiler/rustc_codegen_ssa/src/mono_item.rs index 5f95b6615bd3..a4d5f8bb7017 100644 --- a/compiler/rustc_codegen_ssa/src/mono_item.rs +++ b/compiler/rustc_codegen_ssa/src/mono_item.rs @@ -36,7 +36,7 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { } MonoItem::GlobalAsm(item_id) => { let item = cx.tcx().hir_item(item_id); - if let hir::ItemKind::GlobalAsm(asm) = item.kind { + if let hir::ItemKind::GlobalAsm { asm } = item.kind { let operands: Vec<_> = asm .operands .iter() diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index eafc60f9d72f..7cd303727832 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -3848,7 +3848,7 @@ impl<'hir> Item<'hir> { expect_foreign_mod, (ExternAbi, &'hir [ForeignItemRef]), ItemKind::ForeignMod { abi, items }, (*abi, items); - expect_global_asm, &'hir InlineAsm<'hir>, ItemKind::GlobalAsm(asm), asm; + expect_global_asm, &'hir InlineAsm<'hir>, ItemKind::GlobalAsm { asm }, asm; expect_ty_alias, (&'hir Ty<'hir>, &'hir Generics<'hir>), ItemKind::TyAlias(ty, generics), (ty, generics); @@ -4015,7 +4015,7 @@ pub enum ItemKind<'hir> { /// An external module, e.g. `extern { .. }`. ForeignMod { abi: ExternAbi, items: &'hir [ForeignItemRef] }, /// Module-level inline assembly (from `global_asm!`). - GlobalAsm(&'hir InlineAsm<'hir>), + GlobalAsm { asm: &'hir InlineAsm<'hir> }, /// A type alias, e.g., `type Foo = Bar`. TyAlias(&'hir Ty<'hir>, &'hir Generics<'hir>), /// An enum definition, e.g., `enum Foo {C, D}`. @@ -4081,7 +4081,7 @@ impl ItemKind<'_> { ItemKind::Macro(..) => "macro", ItemKind::Mod(..) => "module", ItemKind::ForeignMod { .. } => "extern block", - ItemKind::GlobalAsm(..) => "global asm item", + ItemKind::GlobalAsm { .. } => "global asm item", ItemKind::TyAlias(..) => "type alias", ItemKind::Enum(..) => "enum", ItemKind::Struct(..) => "struct", diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index bd96fe9ee32c..5a002423a0c9 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -573,7 +573,7 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) -> V:: try_visit!(visitor.visit_id(item.hir_id())); walk_list!(visitor, visit_foreign_item_ref, items); } - ItemKind::GlobalAsm(asm) => { + ItemKind::GlobalAsm { asm } => { try_visit!(visitor.visit_id(item.hir_id())); try_visit!(visitor.visit_inline_asm(asm, item.hir_id())); } diff --git a/compiler/rustc_hir/src/target.rs b/compiler/rustc_hir/src/target.rs index f3e8f059c9e3..70e95a84e68c 100644 --- a/compiler/rustc_hir/src/target.rs +++ b/compiler/rustc_hir/src/target.rs @@ -110,7 +110,7 @@ impl Target { ItemKind::Macro(..) => Target::MacroDef, ItemKind::Mod(..) => Target::Mod, ItemKind::ForeignMod { .. } => Target::ForeignMod, - ItemKind::GlobalAsm(..) => Target::GlobalAsm, + ItemKind::GlobalAsm { .. } => Target::GlobalAsm, ItemKind::TyAlias(..) => Target::TyAlias, ItemKind::Enum(..) => Target::Enum, ItemKind::Struct(..) => Target::Struct, diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index b1b046d71752..fbe3b60c5203 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -897,7 +897,7 @@ pub(crate) fn check_item_type(tcx: TyCtxt<'_>, def_id: LocalDefId) { } DefKind::GlobalAsm => { let it = tcx.hir().expect_item(def_id); - let hir::ItemKind::GlobalAsm(asm) = it.kind else { + let hir::ItemKind::GlobalAsm { asm } = it.kind else { span_bug!(it.span, "DefKind::GlobalAsm but got {:#?}", it) }; InlineAsmCtxt::new_global_asm(tcx).check_asm(asm, def_id); diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 5bb77c096dcf..d2334c8cec5a 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -680,7 +680,7 @@ fn lower_item(tcx: TyCtxt<'_>, item_id: hir::ItemId) { | hir::ItemKind::Use(..) | hir::ItemKind::Macro(..) | hir::ItemKind::Mod(_) - | hir::ItemKind::GlobalAsm(_) => {} + | hir::ItemKind::GlobalAsm { .. } => {} hir::ItemKind::ForeignMod { items, .. } => { for item in *items { let item = tcx.hir_foreign_item(item.id); diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index 759c981a8f76..b5333f393bcd 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -630,7 +630,7 @@ impl<'a, 'tcx> Visitor<'tcx> for BoundVarContext<'a, 'tcx> { | hir::ItemKind::Mod(..) | hir::ItemKind::ForeignMod { .. } | hir::ItemKind::Static(..) - | hir::ItemKind::GlobalAsm(..) => { + | hir::ItemKind::GlobalAsm { .. } => { // These sorts of items have no lifetime parameters at all. intravisit::walk_item(self, item); } diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 717713d93399..19b78f48cfc0 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -59,7 +59,7 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx // Anon consts outside the type system. Node::Expr(&Expr { kind: ExprKind::InlineAsm(asm), .. }) - | Node::Item(&Item { kind: ItemKind::GlobalAsm(asm), .. }) + | Node::Item(&Item { kind: ItemKind::GlobalAsm { asm }, .. }) if let Some((anon_const, op_sp)) = asm.operands.iter().find_map(find_sym_fn) => { let ty = tcx.typeck(def_id).node_type(hir_id); @@ -83,7 +83,7 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx } } Node::Expr(&Expr { kind: ExprKind::InlineAsm(asm), .. }) - | Node::Item(&Item { kind: ItemKind::GlobalAsm(asm), .. }) + | Node::Item(&Item { kind: ItemKind::GlobalAsm { asm }, .. }) if let Some((anon_const, op_sp)) = asm.operands.iter().find_map(find_const) => { let ty = tcx.typeck(def_id).node_type(hir_id); @@ -318,7 +318,7 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<'_ | ItemKind::Macro(..) | ItemKind::Mod(..) | ItemKind::ForeignMod { .. } - | ItemKind::GlobalAsm(..) + | ItemKind::GlobalAsm { .. } | ItemKind::ExternCrate(..) | ItemKind::Use(..) => { span_bug!(item.span, "compute_type_of_item: unexpected item type: {:?}", item.kind); diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 34124a6aa11a..b485b426c288 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -692,7 +692,7 @@ impl<'a> State<'a> { } self.bclose(item.span); } - hir::ItemKind::GlobalAsm(asm) => { + hir::ItemKind::GlobalAsm { asm } => { self.head("global_asm!"); self.print_inline_asm(asm); self.end() diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs index 9d5184acb3ca..c1ed5b0aa507 100644 --- a/compiler/rustc_hir_typeck/src/lib.rs +++ b/compiler/rustc_hir_typeck/src/lib.rs @@ -277,7 +277,7 @@ fn infer_type_if_missing<'tcx>(fcx: &FnCtxt<'_, 'tcx>, node: Node<'tcx>) -> Opti Some(fcx.next_ty_var(span)) } Node::Expr(&hir::Expr { kind: hir::ExprKind::InlineAsm(asm), span, .. }) - | Node::Item(&hir::Item { kind: hir::ItemKind::GlobalAsm(asm), span, .. }) => { + | Node::Item(&hir::Item { kind: hir::ItemKind::GlobalAsm { asm }, span, .. }) => { asm.operands.iter().find_map(|(op, _op_sp)| match op { hir::InlineAsmOperand::Const { anon_const } | hir::InlineAsmOperand::SymFn { anon_const } diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index 118a6fed036e..56858679af66 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -261,7 +261,7 @@ impl<'tcx> DirtyCleanVisitor<'tcx> { HirItem::ForeignMod { .. } => ("ItemForeignMod", LABELS_HIR_ONLY), // Module-level inline assembly (from global_asm!) - HirItem::GlobalAsm(..) => ("ItemGlobalAsm", LABELS_HIR_ONLY), + HirItem::GlobalAsm { .. } => ("ItemGlobalAsm", LABELS_HIR_ONLY), // A type alias, e.g., `type Foo = Bar` HirItem::TyAlias(..) => ("ItemTy", LABELS_HIR_ONLY), diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 68b1f435a4cf..4930cc35c9c3 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1740,7 +1740,7 @@ impl<'tcx> LateLintPass<'tcx> for ImproperCTypesDefinitions { hir::ItemKind::Impl(..) | hir::ItemKind::TraitAlias(..) | hir::ItemKind::Trait(..) - | hir::ItemKind::GlobalAsm(..) + | hir::ItemKind::GlobalAsm { .. } | hir::ItemKind::ForeignMod { .. } | hir::ItemKind::Mod(..) | hir::ItemKind::Macro(..) diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 40dd6aa73fd4..832f80266145 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -1166,7 +1166,7 @@ fn hir_id_to_string(map: Map<'_>, id: HirId) -> String { ItemKind::Macro(..) => "macro", ItemKind::Mod(..) => "mod", ItemKind::ForeignMod { .. } => "foreign mod", - ItemKind::GlobalAsm(..) => "global asm", + ItemKind::GlobalAsm { .. } => "global asm", ItemKind::TyAlias(..) => "ty", ItemKind::Enum(..) => "enum", ItemKind::Struct(..) => "struct", diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index 1195c25e1308..bf56f468179d 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -479,7 +479,7 @@ fn collect_items_rec<'tcx>( recursion_depth_reset = None; let item = tcx.hir_item(item_id); - if let hir::ItemKind::GlobalAsm(asm) = item.kind { + if let hir::ItemKind::GlobalAsm { asm } = item.kind { for (op, op_sp) in asm.operands { match op { hir::InlineAsmOperand::Const { .. } => { diff --git a/compiler/rustc_passes/src/reachable.rs b/compiler/rustc_passes/src/reachable.rs index 1fe44bd3d21a..fd465717bf76 100644 --- a/compiler/rustc_passes/src/reachable.rs +++ b/compiler/rustc_passes/src/reachable.rs @@ -246,7 +246,7 @@ impl<'tcx> ReachableContext<'tcx> { | hir::ItemKind::Struct(..) | hir::ItemKind::Enum(..) | hir::ItemKind::Union(..) - | hir::ItemKind::GlobalAsm(..) => {} + | hir::ItemKind::GlobalAsm { .. } => {} } } Node::TraitItem(trait_method) => { diff --git a/compiler/rustc_privacy/src/lib.rs b/compiler/rustc_privacy/src/lib.rs index 6faa2c1a00d2..41725d0c6a4f 100644 --- a/compiler/rustc_privacy/src/lib.rs +++ b/compiler/rustc_privacy/src/lib.rs @@ -645,7 +645,7 @@ impl<'tcx> Visitor<'tcx> for EmbargoVisitor<'tcx> { // The interface is empty, and no nested items. hir::ItemKind::Use(..) | hir::ItemKind::ExternCrate(..) - | hir::ItemKind::GlobalAsm(..) => {} + | hir::ItemKind::GlobalAsm { .. } => {} // The interface is empty, and all nested items are processed by `visit_item`. hir::ItemKind::Mod(..) => {} hir::ItemKind::Macro(macro_def, _) => { diff --git a/src/librustdoc/html/render/span_map.rs b/src/librustdoc/html/render/span_map.rs index 658d5965b3d2..ce9c42c01cc7 100644 --- a/src/librustdoc/html/render/span_map.rs +++ b/src/librustdoc/html/render/span_map.rs @@ -288,7 +288,7 @@ impl<'tcx> Visitor<'tcx> for SpanMapVisitor<'tcx> { | ItemKind::Use(_, _) | ItemKind::ExternCrate(_) | ItemKind::ForeignMod { .. } - | ItemKind::GlobalAsm(_) + | ItemKind::GlobalAsm { .. } // We already have "visit_mod" above so no need to check it here. | ItemKind::Mod(_) => {} } diff --git a/src/librustdoc/visit_ast.rs b/src/librustdoc/visit_ast.rs index f606a3d8a927..7b6921afa080 100644 --- a/src/librustdoc/visit_ast.rs +++ b/src/librustdoc/visit_ast.rs @@ -439,7 +439,7 @@ impl<'a, 'tcx> RustdocVisitor<'a, 'tcx> { } // If we're inlining, skip private items. _ if self.inlining && !is_pub => {} - hir::ItemKind::GlobalAsm(..) => {} + hir::ItemKind::GlobalAsm { .. } => {} hir::ItemKind::Use(_, hir::UseKind::ListStem) => {} hir::ItemKind::Use(path, kind) => { for &res in &path.res { diff --git a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs index aff40fa846be..c0ae4960e10d 100644 --- a/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs +++ b/src/tools/clippy/clippy_lints/src/arbitrary_source_item_ordering.rs @@ -362,7 +362,7 @@ impl<'tcx> LateLintPass<'tcx> for ArbitrarySourceItemOrdering { } } else if let ItemKind::ForeignMod { .. } = item.kind { continue; - } else if let ItemKind::GlobalAsm(_) = item.kind { + } else if let ItemKind::GlobalAsm { .. } = item.kind { continue; } else if let ItemKind::Use(path, use_kind) = item.kind { if path.segments.is_empty() { @@ -467,7 +467,7 @@ fn convert_module_item_kind(value: &ItemKind<'_>) -> SourceItemOrderingModuleIte ItemKind::Macro(..) => Macro, ItemKind::Mod(..) => Mod, ItemKind::ForeignMod { .. } => ForeignMod, - ItemKind::GlobalAsm(..) => GlobalAsm, + ItemKind::GlobalAsm { .. } => GlobalAsm, ItemKind::TyAlias(..) => TyAlias, ItemKind::Enum(..) => Enum, ItemKind::Struct(..) => Struct, diff --git a/src/tools/clippy/clippy_lints/src/missing_doc.rs b/src/tools/clippy/clippy_lints/src/missing_doc.rs index 06e92985e664..47a9e17b3cfe 100644 --- a/src/tools/clippy/clippy_lints/src/missing_doc.rs +++ b/src/tools/clippy/clippy_lints/src/missing_doc.rs @@ -217,7 +217,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingDoc { | hir::ItemKind::Union(..) => {}, hir::ItemKind::ExternCrate(..) | hir::ItemKind::ForeignMod { .. } - | hir::ItemKind::GlobalAsm(..) + | hir::ItemKind::GlobalAsm { .. } | hir::ItemKind::Impl { .. } | hir::ItemKind::Use(..) => note_prev_span_then_ret!(self.prev_span, it.span), } diff --git a/src/tools/clippy/clippy_lints/src/missing_inline.rs b/src/tools/clippy/clippy_lints/src/missing_inline.rs index fdc0930e957a..3cf1a80607e8 100644 --- a/src/tools/clippy/clippy_lints/src/missing_inline.rs +++ b/src/tools/clippy/clippy_lints/src/missing_inline.rs @@ -128,7 +128,7 @@ impl<'tcx> LateLintPass<'tcx> for MissingInline { | hir::ItemKind::Static(..) | hir::ItemKind::Struct(..) | hir::ItemKind::TraitAlias(..) - | hir::ItemKind::GlobalAsm(..) + | hir::ItemKind::GlobalAsm { .. } | hir::ItemKind::TyAlias(..) | hir::ItemKind::Union(..) | hir::ItemKind::ExternCrate(..) From 37060aae13d0fe771f9d3222f1c644820a9d2837 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 16:14:34 +0000 Subject: [PATCH 231/255] Initial cleanups of InlineAsmCtxt --- .../rustc_hir_analysis/src/check/check.rs | 2 +- .../src/check/intrinsicck.rs | 90 +++++++------------ .../rustc_hir_typeck/src/fn_ctxt/checks.rs | 7 +- 3 files changed, 39 insertions(+), 60 deletions(-) diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index fbe3b60c5203..0d34b657dfc3 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -900,7 +900,7 @@ pub(crate) fn check_item_type(tcx: TyCtxt<'_>, def_id: LocalDefId) { let hir::ItemKind::GlobalAsm { asm } = it.kind else { span_bug!(it.span, "DefKind::GlobalAsm but got {:#?}", it) }; - InlineAsmCtxt::new_global_asm(tcx).check_asm(asm, def_id); + InlineAsmCtxt::new_global_asm(tcx, def_id).check_asm(asm); } _ => {} } diff --git a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs index 90e93bdbb507..00f2d46931fa 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs @@ -16,10 +16,11 @@ use rustc_target::asm::{ use crate::errors::RegisterTypeUnstable; -pub struct InlineAsmCtxt<'a, 'tcx> { +pub struct InlineAsmCtxt<'a, 'tcx: 'a> { tcx: TyCtxt<'tcx>, typing_env: ty::TypingEnv<'tcx>, - get_operand_ty: Box) -> Ty<'tcx> + 'a>, + target_features: &'tcx FxIndexSet, + expr_ty: Box) -> Ty<'tcx> + 'a>, } enum NonAsmTypeReason<'tcx> { @@ -29,14 +30,15 @@ enum NonAsmTypeReason<'tcx> { } impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { - pub fn new_global_asm(tcx: TyCtxt<'tcx>) -> Self { + pub fn new_global_asm(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Self { InlineAsmCtxt { tcx, typing_env: ty::TypingEnv { typing_mode: ty::TypingMode::non_body_analysis(), param_env: ty::ParamEnv::empty(), }, - get_operand_ty: Box::new(|e| bug!("asm operand in global asm: {e:?}")), + target_features: tcx.asm_target_features(def_id), + expr_ty: Box::new(|e| bug!("asm operand in global asm: {e:?}")), } } @@ -45,9 +47,19 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { pub fn new_in_fn( tcx: TyCtxt<'tcx>, typing_env: ty::TypingEnv<'tcx>, - get_operand_ty: impl Fn(&'tcx hir::Expr<'tcx>) -> Ty<'tcx> + 'a, + def_id: LocalDefId, + expr_ty: impl Fn(&hir::Expr<'tcx>) -> Ty<'tcx> + 'a, ) -> Self { - InlineAsmCtxt { tcx, typing_env, get_operand_ty: Box::new(get_operand_ty) } + InlineAsmCtxt { + tcx, + typing_env, + target_features: tcx.asm_target_features(def_id), + expr_ty: Box::new(expr_ty), + } + } + + fn expr_ty(&self, expr: &hir::Expr<'tcx>) -> Ty<'tcx> { + (self.expr_ty)(expr) } // FIXME(compiler-errors): This could use `<$ty as Pointee>::Metadata == ()` @@ -139,9 +151,8 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { template: &[InlineAsmTemplatePiece], is_input: bool, tied_input: Option<(&'tcx hir::Expr<'tcx>, Option)>, - target_features: &FxIndexSet, ) -> Option { - let ty = (self.get_operand_ty)(expr); + let ty = self.expr_ty(expr); if ty.has_non_region_infer() { bug!("inference variable in asm operand ty: {:?} {:?}", expr, ty); } @@ -229,7 +240,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { if let Some((in_expr, Some(in_asm_ty))) = tied_input { if in_asm_ty != asm_ty { let msg = "incompatible types for asm inout argument"; - let in_expr_ty = (self.get_operand_ty)(in_expr); + let in_expr_ty = self.expr_ty(in_expr); self.tcx .dcx() .struct_span_err(vec![in_expr.span, expr.span], msg) @@ -291,7 +302,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { // (!). In that case we still need the earlier check to verify that the // register class is usable at all. if let Some(feature) = feature { - if !target_features.contains(feature) { + if !self.target_features.contains(feature) { let msg = format!("`{feature}` target feature is not enabled"); self.tcx .dcx() @@ -351,14 +362,13 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { Some(asm_ty) } - pub fn check_asm(&self, asm: &hir::InlineAsm<'tcx>, enclosing_id: LocalDefId) { - let target_features = self.tcx.asm_target_features(enclosing_id.to_def_id()); + pub fn check_asm(&self, asm: &hir::InlineAsm<'tcx>) { let Some(asm_arch) = self.tcx.sess.asm_arch else { self.tcx.dcx().delayed_bug("target architecture does not support asm"); return; }; let allow_experimental_reg = self.tcx.features().asm_experimental_reg(); - for (idx, (op, op_sp)) in asm.operands.iter().enumerate() { + for (idx, &(op, op_sp)) in asm.operands.iter().enumerate() { // Validate register classes against currently enabled target // features. We check that at least one type is available for // the enabled features. @@ -381,12 +391,12 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { if let Err(msg) = reg.validate( asm_arch, self.tcx.sess.relocation_model(), - target_features, + self.target_features, &self.tcx.sess.target, op.is_clobber(), ) { let msg = format!("cannot use register `{}`: {}", reg.name(), msg); - self.tcx.dcx().span_err(*op_sp, msg); + self.tcx.dcx().span_err(op_sp, msg); continue; } } @@ -401,7 +411,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { { match feature { Some(feature) => { - if target_features.contains(&feature) { + if self.target_features.contains(&feature) { missing_required_features.clear(); break; } else { @@ -426,7 +436,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { reg_class.name(), feature ); - self.tcx.dcx().span_err(*op_sp, msg); + self.tcx.dcx().span_err(op_sp, msg); // register isn't enabled, don't do more checks continue; } @@ -440,7 +450,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { .intersperse(", ") .collect::(), ); - self.tcx.dcx().span_err(*op_sp, msg); + self.tcx.dcx().span_err(op_sp, msg); // register isn't enabled, don't do more checks continue; } @@ -448,52 +458,21 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { } } - match *op { + match op { hir::InlineAsmOperand::In { reg, expr } => { - self.check_asm_operand_type( - idx, - reg, - expr, - asm.template, - true, - None, - target_features, - ); + self.check_asm_operand_type(idx, reg, expr, asm.template, true, None); } hir::InlineAsmOperand::Out { reg, late: _, expr } => { if let Some(expr) = expr { - self.check_asm_operand_type( - idx, - reg, - expr, - asm.template, - false, - None, - target_features, - ); + self.check_asm_operand_type(idx, reg, expr, asm.template, false, None); } } hir::InlineAsmOperand::InOut { reg, late: _, expr } => { - self.check_asm_operand_type( - idx, - reg, - expr, - asm.template, - false, - None, - target_features, - ); + self.check_asm_operand_type(idx, reg, expr, asm.template, false, None); } hir::InlineAsmOperand::SplitInOut { reg, late: _, in_expr, out_expr } => { - let in_ty = self.check_asm_operand_type( - idx, - reg, - in_expr, - asm.template, - true, - None, - target_features, - ); + let in_ty = + self.check_asm_operand_type(idx, reg, in_expr, asm.template, true, None); if let Some(out_expr) = out_expr { self.check_asm_operand_type( idx, @@ -502,7 +481,6 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { asm.template, false, Some((in_expr, in_ty)), - target_features, ); } } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index cf61659479b1..bce9fbbd6d1f 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -101,7 +101,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { debug!("FnCtxt::check_asm: {} deferred checks", deferred_asm_checks.len()); for (asm, hir_id) in deferred_asm_checks.drain(..) { let enclosing_id = self.tcx.hir_enclosing_body_owner(hir_id); - let get_operand_ty = |expr| { + let expr_ty = |expr: &hir::Expr<'tcx>| { let ty = self.typeck_results.borrow().expr_ty_adjusted(expr); let ty = self.resolve_vars_if_possible(ty); if ty.has_non_region_infer() { @@ -113,9 +113,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { InlineAsmCtxt::new_in_fn( self.tcx, self.infcx.typing_env(self.param_env), - get_operand_ty, + enclosing_id, + expr_ty, ) - .check_asm(asm, enclosing_id); + .check_asm(asm); } } From 6ba39f7dc709a90bcb125974964a7e464ed86ff2 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 17 Feb 2025 16:09:46 +0000 Subject: [PATCH 232/255] Make a fake body to store typeck results for global_asm --- compiler/rustc_ast_lowering/src/asm.rs | 18 +------ compiler/rustc_ast_lowering/src/item.rs | 5 +- .../rustc_borrowck/src/universal_regions.rs | 29 +++++++++-- .../rustc_codegen_cranelift/src/global_asm.rs | 6 +-- compiler/rustc_codegen_ssa/src/mono_item.rs | 9 ++-- compiler/rustc_hir/src/hir.rs | 25 ++++++++-- compiler/rustc_hir/src/intravisit.rs | 14 ++++-- .../rustc_hir_analysis/src/check/check.rs | 9 ---- .../src/check/intrinsicck.rs | 50 ++++++++++--------- .../src/collect/generics_of.rs | 3 +- .../rustc_hir_analysis/src/collect/type_of.rs | 35 +------------ compiler/rustc_hir_pretty/src/lib.rs | 6 +-- compiler/rustc_hir_typeck/src/expr.rs | 7 ++- .../rustc_hir_typeck/src/fn_ctxt/checks.rs | 8 +-- compiler/rustc_hir_typeck/src/lib.rs | 14 +++--- compiler/rustc_hir_typeck/src/writeback.rs | 9 ++-- compiler/rustc_lint/src/builtin.rs | 8 ++- compiler/rustc_middle/src/hir/map.rs | 3 +- compiler/rustc_middle/src/thir.rs | 4 +- compiler/rustc_middle/src/thir/visit.rs | 2 +- compiler/rustc_middle/src/ty/context.rs | 6 ++- .../rustc_mir_build/src/builder/expr/into.rs | 17 ++----- compiler/rustc_mir_build/src/builder/mod.rs | 5 +- .../rustc_mir_build/src/check_unsafety.rs | 5 +- compiler/rustc_mir_build/src/thir/cx/expr.rs | 9 +--- compiler/rustc_mir_build/src/thir/cx/mod.rs | 40 ++++++++------- compiler/rustc_mir_build/src/thir/print.rs | 6 +-- compiler/rustc_monomorphize/src/collector.rs | 13 +++-- .../src/operators/numeric_arithmetic.rs | 2 +- .../clippy/clippy_utils/src/hir_utils.rs | 5 +- tests/crashes/111709-2.rs | 15 ------ tests/crashes/111709.rs | 25 ---------- tests/crashes/96304.rs | 6 --- tests/ui/asm/asm-with-nested-closure.rs | 11 ++++ tests/ui/asm/global-asm-with-lifetimes.rs | 8 +++ .../asm/inline-asm-with-lifetimes.bad.stderr | 17 +++++++ tests/ui/asm/inline-asm-with-lifetimes.rs | 22 ++++++++ 37 files changed, 244 insertions(+), 232 deletions(-) delete mode 100644 tests/crashes/111709-2.rs delete mode 100644 tests/crashes/111709.rs delete mode 100644 tests/crashes/96304.rs create mode 100644 tests/ui/asm/asm-with-nested-closure.rs create mode 100644 tests/ui/asm/global-asm-with-lifetimes.rs create mode 100644 tests/ui/asm/inline-asm-with-lifetimes.bad.stderr create mode 100644 tests/ui/asm/inline-asm-with-lifetimes.rs diff --git a/compiler/rustc_ast_lowering/src/asm.rs b/compiler/rustc_ast_lowering/src/asm.rs index 96c230ec243a..cfd32fc066f4 100644 --- a/compiler/rustc_ast_lowering/src/asm.rs +++ b/compiler/rustc_ast_lowering/src/asm.rs @@ -1,13 +1,12 @@ use std::collections::hash_map::Entry; use std::fmt::Write; -use rustc_ast::ptr::P; use rustc_ast::*; use rustc_data_structures::fx::{FxHashMap, FxHashSet, FxIndexMap}; use rustc_hir as hir; use rustc_hir::def::{DefKind, Res}; use rustc_session::parse::feature_err; -use rustc_span::{Span, kw, sym}; +use rustc_span::{Span, sym}; use rustc_target::asm; use super::LoweringContext; @@ -230,20 +229,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { tokens: None, }; - // Wrap the expression in an AnonConst. - let parent_def_id = self.current_hir_id_owner.def_id; - let node_id = self.next_node_id(); - self.create_def( - parent_def_id, - node_id, - kw::Empty, - DefKind::AnonConst, - *op_sp, - ); - let anon_const = AnonConst { id: node_id, value: P(expr) }; - hir::InlineAsmOperand::SymFn { - anon_const: self.lower_anon_const_to_anon_const(&anon_const), - } + hir::InlineAsmOperand::SymFn { expr: self.lower_expr(&expr) } } } InlineAsmOperand::Label { block } => { diff --git a/compiler/rustc_ast_lowering/src/item.rs b/compiler/rustc_ast_lowering/src/item.rs index a7a03f7d6db9..1d3db64b47ed 100644 --- a/compiler/rustc_ast_lowering/src/item.rs +++ b/compiler/rustc_ast_lowering/src/item.rs @@ -252,7 +252,10 @@ impl<'hir> LoweringContext<'_, 'hir> { .alloc_from_iter(fm.items.iter().map(|x| self.lower_foreign_item_ref(x))), }, ItemKind::GlobalAsm(asm) => { - hir::ItemKind::GlobalAsm { asm: self.lower_inline_asm(span, asm) } + let asm = self.lower_inline_asm(span, asm); + let fake_body = + self.lower_body(|this| (&[], this.expr(span, hir::ExprKind::InlineAsm(asm)))); + hir::ItemKind::GlobalAsm { asm, fake_body } } ItemKind::TyAlias(box TyAlias { generics, where_clauses, ty, .. }) => { // We lower diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index 9a68eeb3326e..a71ca37bf130 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -126,6 +126,11 @@ pub(crate) enum DefiningTy<'tcx> { /// The MIR represents an inline const. The signature has no inputs and a /// single return value found via `InlineConstArgs::ty`. InlineConst(DefId, GenericArgsRef<'tcx>), + + // Fake body for a global asm. Not particularly useful or interesting, + // but we need it so we can properly store the typeck results of the asm + // operands, which aren't associated with a body otherwise. + GlobalAsm(DefId), } impl<'tcx> DefiningTy<'tcx> { @@ -138,9 +143,10 @@ impl<'tcx> DefiningTy<'tcx> { DefiningTy::Closure(_, args) => args.as_closure().upvar_tys(), DefiningTy::CoroutineClosure(_, args) => args.as_coroutine_closure().upvar_tys(), DefiningTy::Coroutine(_, args) => args.as_coroutine().upvar_tys(), - DefiningTy::FnDef(..) | DefiningTy::Const(..) | DefiningTy::InlineConst(..) => { - ty::List::empty() - } + DefiningTy::FnDef(..) + | DefiningTy::Const(..) + | DefiningTy::InlineConst(..) + | DefiningTy::GlobalAsm(_) => ty::List::empty(), } } @@ -152,7 +158,10 @@ impl<'tcx> DefiningTy<'tcx> { DefiningTy::Closure(..) | DefiningTy::CoroutineClosure(..) | DefiningTy::Coroutine(..) => 1, - DefiningTy::FnDef(..) | DefiningTy::Const(..) | DefiningTy::InlineConst(..) => 0, + DefiningTy::FnDef(..) + | DefiningTy::Const(..) + | DefiningTy::InlineConst(..) + | DefiningTy::GlobalAsm(_) => 0, } } @@ -171,7 +180,8 @@ impl<'tcx> DefiningTy<'tcx> { | DefiningTy::Coroutine(def_id, ..) | DefiningTy::FnDef(def_id, ..) | DefiningTy::Const(def_id, ..) - | DefiningTy::InlineConst(def_id, ..) => def_id, + | DefiningTy::InlineConst(def_id, ..) + | DefiningTy::GlobalAsm(def_id) => def_id, } } } @@ -411,6 +421,7 @@ impl<'tcx> UniversalRegions<'tcx> { tcx.def_path_str_with_args(def_id, args), )); } + DefiningTy::GlobalAsm(_) => unreachable!(), } } @@ -633,6 +644,8 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { DefiningTy::InlineConst(self.mir_def.to_def_id(), args) } } + + BodyOwnerKind::GlobalAsm => DefiningTy::GlobalAsm(self.mir_def.to_def_id()), } } @@ -666,6 +679,8 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { } DefiningTy::FnDef(_, args) | DefiningTy::Const(_, args) => args, + + DefiningTy::GlobalAsm(_) => ty::List::empty(), }; let global_mapping = iter::once((tcx.lifetimes.re_static, fr_static)); @@ -802,6 +817,10 @@ impl<'cx, 'tcx> UniversalRegionsBuilder<'cx, 'tcx> { let ty = args.as_inline_const().ty(); ty::Binder::dummy(tcx.mk_type_list(&[ty])) } + + DefiningTy::GlobalAsm(def_id) => { + ty::Binder::dummy(tcx.mk_type_list(&[tcx.type_of(def_id).instantiate_identity()])) + } }; // FIXME(#129952): We probably want a more principled approach here. diff --git a/compiler/rustc_codegen_cranelift/src/global_asm.rs b/compiler/rustc_codegen_cranelift/src/global_asm.rs index 0a23f63d6ba9..9ea92c300f89 100644 --- a/compiler/rustc_codegen_cranelift/src/global_asm.rs +++ b/compiler/rustc_codegen_cranelift/src/global_asm.rs @@ -16,7 +16,7 @@ use crate::prelude::*; pub(crate) fn codegen_global_asm_item(tcx: TyCtxt<'_>, global_asm: &mut String, item_id: ItemId) { let item = tcx.hir_item(item_id); - if let rustc_hir::ItemKind::GlobalAsm { asm } = item.kind { + if let rustc_hir::ItemKind::GlobalAsm { asm, .. } = item.kind { let is_x86 = matches!(tcx.sess.asm_arch.unwrap(), InlineAsmArch::X86 | InlineAsmArch::X86_64); @@ -55,7 +55,7 @@ pub(crate) fn codegen_global_asm_item(tcx: TyCtxt<'_>, global_asm: &mut String, } } } - InlineAsmOperand::SymFn { anon_const } => { + InlineAsmOperand::SymFn { expr } => { if cfg!(not(feature = "inline_asm_sym")) { tcx.dcx().span_err( item.span, @@ -63,7 +63,7 @@ pub(crate) fn codegen_global_asm_item(tcx: TyCtxt<'_>, global_asm: &mut String, ); } - let ty = tcx.typeck_body(anon_const.body).node_type(anon_const.hir_id); + let ty = tcx.typeck(item_id.owner_id).expr_ty(expr); let instance = match ty.kind() { &ty::FnDef(def_id, args) => Instance::new(def_id, args), _ => span_bug!(op_sp, "asm sym is not a function"), diff --git a/compiler/rustc_codegen_ssa/src/mono_item.rs b/compiler/rustc_codegen_ssa/src/mono_item.rs index a4d5f8bb7017..f6af889fd6ec 100644 --- a/compiler/rustc_codegen_ssa/src/mono_item.rs +++ b/compiler/rustc_codegen_ssa/src/mono_item.rs @@ -36,7 +36,7 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { } MonoItem::GlobalAsm(item_id) => { let item = cx.tcx().hir_item(item_id); - if let hir::ItemKind::GlobalAsm { asm } = item.kind { + if let hir::ItemKind::GlobalAsm { asm, .. } = item.kind { let operands: Vec<_> = asm .operands .iter() @@ -71,11 +71,8 @@ impl<'a, 'tcx: 'a> MonoItemExt<'a, 'tcx> for MonoItem<'tcx> { } } } - hir::InlineAsmOperand::SymFn { ref anon_const } => { - let ty = cx - .tcx() - .typeck_body(anon_const.body) - .node_type(anon_const.hir_id); + hir::InlineAsmOperand::SymFn { expr } => { + let ty = cx.tcx().typeck(item_id.owner_id).expr_ty(expr); let instance = match ty.kind() { &ty::FnDef(def_id, args) => Instance::new(def_id, args), _ => span_bug!(*op_sp, "asm sym is not a function"), diff --git a/compiler/rustc_hir/src/hir.rs b/compiler/rustc_hir/src/hir.rs index 7cd303727832..61f64e62058f 100644 --- a/compiler/rustc_hir/src/hir.rs +++ b/compiler/rustc_hir/src/hir.rs @@ -1913,13 +1913,18 @@ pub enum BodyOwnerKind { /// Initializer of a `static` item. Static(Mutability), + + /// Fake body for a global asm to store its const-like value types. + GlobalAsm, } impl BodyOwnerKind { pub fn is_fn_or_closure(self) -> bool { match self { BodyOwnerKind::Fn | BodyOwnerKind::Closure => true, - BodyOwnerKind::Const { .. } | BodyOwnerKind::Static(_) => false, + BodyOwnerKind::Const { .. } | BodyOwnerKind::Static(_) | BodyOwnerKind::GlobalAsm => { + false + } } } } @@ -3420,7 +3425,7 @@ pub enum InlineAsmOperand<'hir> { anon_const: &'hir AnonConst, }, SymFn { - anon_const: &'hir AnonConst, + expr: &'hir Expr<'hir>, }, SymStatic { path: QPath<'hir>, @@ -3848,7 +3853,7 @@ impl<'hir> Item<'hir> { expect_foreign_mod, (ExternAbi, &'hir [ForeignItemRef]), ItemKind::ForeignMod { abi, items }, (*abi, items); - expect_global_asm, &'hir InlineAsm<'hir>, ItemKind::GlobalAsm { asm }, asm; + expect_global_asm, &'hir InlineAsm<'hir>, ItemKind::GlobalAsm { asm, .. }, asm; expect_ty_alias, (&'hir Ty<'hir>, &'hir Generics<'hir>), ItemKind::TyAlias(ty, generics), (ty, generics); @@ -4015,7 +4020,15 @@ pub enum ItemKind<'hir> { /// An external module, e.g. `extern { .. }`. ForeignMod { abi: ExternAbi, items: &'hir [ForeignItemRef] }, /// Module-level inline assembly (from `global_asm!`). - GlobalAsm { asm: &'hir InlineAsm<'hir> }, + GlobalAsm { + asm: &'hir InlineAsm<'hir>, + /// A fake body which stores typeck results for the global asm's sym_fn + /// operands, which are represented as path expressions. This body contains + /// a single [`ExprKind::InlineAsm`] which points to the asm in the field + /// above, and which is typechecked like a inline asm expr just for the + /// typeck results. + fake_body: BodyId, + }, /// A type alias, e.g., `type Foo = Bar`. TyAlias(&'hir Ty<'hir>, &'hir Generics<'hir>), /// An enum definition, e.g., `enum Foo {C, D}`. @@ -4540,6 +4553,10 @@ impl<'hir> Node<'hir> { .. }) => Some((owner_id.def_id, *body)), + Node::Item(Item { + owner_id, kind: ItemKind::GlobalAsm { asm: _, fake_body }, .. + }) => Some((owner_id.def_id, *fake_body)), + Node::Expr(Expr { kind: ExprKind::Closure(Closure { def_id, body, .. }), .. }) => { Some((*def_id, *body)) } diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index 5a002423a0c9..89a58e947cb5 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -573,9 +573,13 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) -> V:: try_visit!(visitor.visit_id(item.hir_id())); walk_list!(visitor, visit_foreign_item_ref, items); } - ItemKind::GlobalAsm { asm } => { + ItemKind::GlobalAsm { asm: _, fake_body } => { try_visit!(visitor.visit_id(item.hir_id())); - try_visit!(visitor.visit_inline_asm(asm, item.hir_id())); + // Visit the fake body, which contains the asm statement. + // Therefore we should not visit the asm statement again + // outside of the body, or some visitors won't have their + // typeck results set correctly. + try_visit!(visitor.visit_nested_body(fake_body)); } ItemKind::TyAlias(ref ty, ref generics) => { try_visit!(visitor.visit_id(item.hir_id())); @@ -1442,10 +1446,12 @@ pub fn walk_inline_asm<'v, V: Visitor<'v>>( try_visit!(visitor.visit_expr(in_expr)); visit_opt!(visitor, visit_expr, out_expr); } - InlineAsmOperand::Const { anon_const, .. } - | InlineAsmOperand::SymFn { anon_const, .. } => { + InlineAsmOperand::Const { anon_const, .. } => { try_visit!(visitor.visit_anon_const(anon_const)); } + InlineAsmOperand::SymFn { expr, .. } => { + try_visit!(visitor.visit_expr(expr)); + } InlineAsmOperand::SymStatic { path, .. } => { try_visit!(visitor.visit_qpath(path, id, *op_sp)); } diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 0d34b657dfc3..3236e0a3644d 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -15,7 +15,6 @@ use rustc_lint_defs::builtin::{ use rustc_middle::hir::nested_filter; use rustc_middle::middle::resolve_bound_vars::ResolvedArg; use rustc_middle::middle::stability::EvalResult; -use rustc_middle::span_bug; use rustc_middle::ty::error::TypeErrorToStringExt; use rustc_middle::ty::fold::{BottomUpFolder, fold_regions}; use rustc_middle::ty::layout::{LayoutError, MAX_SIMD_LANES}; @@ -35,7 +34,6 @@ use {rustc_attr_parsing as attr, rustc_hir as hir}; use super::compare_impl_item::check_type_bounds; use super::*; -use crate::check::intrinsicck::InlineAsmCtxt; pub fn check_abi(tcx: TyCtxt<'_>, span: Span, abi: ExternAbi) { if !tcx.sess.target.is_abi_supported(abi) { @@ -895,13 +893,6 @@ pub(crate) fn check_item_type(tcx: TyCtxt<'_>, def_id: LocalDefId) { } } } - DefKind::GlobalAsm => { - let it = tcx.hir().expect_item(def_id); - let hir::ItemKind::GlobalAsm { asm } = it.kind else { - span_bug!(it.span, "DefKind::GlobalAsm but got {:#?}", it) - }; - InlineAsmCtxt::new_global_asm(tcx, def_id).check_asm(asm); - } _ => {} } } diff --git a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs index 00f2d46931fa..e1727fc48a83 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsicck.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsicck.rs @@ -6,7 +6,7 @@ use rustc_data_structures::fx::FxIndexSet; use rustc_hir::def_id::DefId; use rustc_hir::{self as hir, LangItem}; use rustc_middle::bug; -use rustc_middle::ty::{self, FloatTy, IntTy, Ty, TyCtxt, TypeVisitableExt, UintTy}; +use rustc_middle::ty::{self, Article, FloatTy, IntTy, Ty, TyCtxt, TypeVisitableExt, UintTy}; use rustc_session::lint; use rustc_span::def_id::LocalDefId; use rustc_span::{Symbol, sym}; @@ -30,7 +30,11 @@ enum NonAsmTypeReason<'tcx> { } impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { - pub fn new_global_asm(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> Self { + pub fn new( + tcx: TyCtxt<'tcx>, + def_id: LocalDefId, + get_operand_ty: impl Fn(&hir::Expr<'tcx>) -> Ty<'tcx> + 'a, + ) -> Self { InlineAsmCtxt { tcx, typing_env: ty::TypingEnv { @@ -38,23 +42,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { param_env: ty::ParamEnv::empty(), }, target_features: tcx.asm_target_features(def_id), - expr_ty: Box::new(|e| bug!("asm operand in global asm: {e:?}")), - } - } - - // FIXME(#132279): This likely causes us to incorrectly handle opaque types in their - // defining scope. - pub fn new_in_fn( - tcx: TyCtxt<'tcx>, - typing_env: ty::TypingEnv<'tcx>, - def_id: LocalDefId, - expr_ty: impl Fn(&hir::Expr<'tcx>) -> Ty<'tcx> + 'a, - ) -> Self { - InlineAsmCtxt { - tcx, - typing_env, - target_features: tcx.asm_target_features(def_id), - expr_ty: Box::new(expr_ty), + expr_ty: Box::new(get_operand_ty), } } @@ -492,11 +480,25 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> { ); } // Typeck has checked that SymFn refers to a function. - hir::InlineAsmOperand::SymFn { anon_const } => { - debug_assert_matches!( - self.tcx.type_of(anon_const.def_id).instantiate_identity().kind(), - ty::Error(_) | ty::FnDef(..) - ); + hir::InlineAsmOperand::SymFn { expr } => { + let ty = self.expr_ty(expr); + match ty.kind() { + ty::FnDef(..) => {} + ty::Error(_) => {} + _ => { + self.tcx + .dcx() + .struct_span_err(op_sp, "invalid `sym` operand") + .with_span_label( + expr.span, + format!("is {} `{}`", ty.kind().article(), ty), + ) + .with_help( + "`sym` operands must refer to either a function or a static", + ) + .emit(); + } + } } // AST lowering guarantees that SymStatic points to a static. hir::InlineAsmOperand::SymStatic { .. } => {} diff --git a/compiler/rustc_hir_analysis/src/collect/generics_of.rs b/compiler/rustc_hir_analysis/src/collect/generics_of.rs index a363076b75ac..2cdd9a3a9348 100644 --- a/compiler/rustc_hir_analysis/src/collect/generics_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/generics_of.rs @@ -189,8 +189,7 @@ pub(super) fn generics_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::Generics { // Exclude `GlobalAsm` here which cannot have generics. Node::Expr(&Expr { kind: ExprKind::InlineAsm(asm), .. }) if asm.operands.iter().any(|(op, _op_sp)| match op { - hir::InlineAsmOperand::Const { anon_const } - | hir::InlineAsmOperand::SymFn { anon_const } => { + hir::InlineAsmOperand::Const { anon_const } => { anon_const.hir_id == hir_id } _ => false, diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 19b78f48cfc0..37c9e0610912 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -35,13 +35,6 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx let parent_node_id = tcx.parent_hir_id(hir_id); let parent_node = tcx.hir_node(parent_node_id); - let find_sym_fn = |&(op, op_sp)| match op { - hir::InlineAsmOperand::SymFn { anon_const } if anon_const.hir_id == hir_id => { - Some((anon_const, op_sp)) - } - _ => None, - }; - let find_const = |&(op, op_sp)| match op { hir::InlineAsmOperand::Const { anon_const } if anon_const.hir_id == hir_id => { Some((anon_const, op_sp)) @@ -59,31 +52,7 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx // Anon consts outside the type system. Node::Expr(&Expr { kind: ExprKind::InlineAsm(asm), .. }) - | Node::Item(&Item { kind: ItemKind::GlobalAsm { asm }, .. }) - if let Some((anon_const, op_sp)) = asm.operands.iter().find_map(find_sym_fn) => - { - let ty = tcx.typeck(def_id).node_type(hir_id); - - match ty.kind() { - ty::Error(_) => ty, - ty::FnDef(..) => ty, - _ => { - let guar = tcx - .dcx() - .struct_span_err(op_sp, "invalid `sym` operand") - .with_span_label( - tcx.def_span(anon_const.def_id), - format!("is {} `{}`", ty.kind().article(), ty), - ) - .with_help("`sym` operands must refer to either a function or a static") - .emit(); - - Ty::new_error(tcx, guar) - } - } - } - Node::Expr(&Expr { kind: ExprKind::InlineAsm(asm), .. }) - | Node::Item(&Item { kind: ItemKind::GlobalAsm { asm }, .. }) + | Node::Item(&Item { kind: ItemKind::GlobalAsm { asm, .. }, .. }) if let Some((anon_const, op_sp)) = asm.operands.iter().find_map(find_const) => { let ty = tcx.typeck(def_id).node_type(hir_id); @@ -313,12 +282,12 @@ pub(super) fn type_of(tcx: TyCtxt<'_>, def_id: LocalDefId) -> ty::EarlyBinder<'_ let args = ty::GenericArgs::identity_for_item(tcx, def_id); Ty::new_adt(tcx, def, args) } + ItemKind::GlobalAsm { .. } => tcx.typeck(def_id).node_type(hir_id), ItemKind::Trait(..) | ItemKind::TraitAlias(..) | ItemKind::Macro(..) | ItemKind::Mod(..) | ItemKind::ForeignMod { .. } - | ItemKind::GlobalAsm { .. } | ItemKind::ExternCrate(..) | ItemKind::Use(..) => { span_bug!(item.span, "compute_type_of_item: unexpected item type: {:?}", item.kind); diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index b485b426c288..b9cdf3ddc346 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -692,7 +692,7 @@ impl<'a> State<'a> { } self.bclose(item.span); } - hir::ItemKind::GlobalAsm { asm } => { + hir::ItemKind::GlobalAsm { asm, .. } => { self.head("global_asm!"); self.print_inline_asm(asm); self.end() @@ -1431,10 +1431,10 @@ impl<'a> State<'a> { s.space(); s.print_anon_const(anon_const); } - hir::InlineAsmOperand::SymFn { ref anon_const } => { + hir::InlineAsmOperand::SymFn { ref expr } => { s.word("sym_fn"); s.space(); - s.print_anon_const(anon_const); + s.print_expr(expr); } hir::InlineAsmOperand::SymStatic { ref path, def_id: _ } => { s.word("sym_static"); diff --git a/compiler/rustc_hir_typeck/src/expr.rs b/compiler/rustc_hir_typeck/src/expr.rs index 277396da19c1..0c71ef4655c5 100644 --- a/compiler/rustc_hir_typeck/src/expr.rs +++ b/compiler/rustc_hir_typeck/src/expr.rs @@ -3763,7 +3763,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut diverge = asm.asm_macro.diverges(asm.options); for (op, _op_sp) in asm.operands { - match op { + match *op { hir::InlineAsmOperand::In { expr, .. } => { self.check_expr_asm_operand(expr, true); } @@ -3778,10 +3778,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.check_expr_asm_operand(out_expr, false); } } + hir::InlineAsmOperand::SymFn { expr } => { + self.check_expr(expr); + } // `AnonConst`s have their own body and is type-checked separately. // As they don't flow into the type system we don't need them to // be well-formed. - hir::InlineAsmOperand::Const { .. } | hir::InlineAsmOperand::SymFn { .. } => {} + hir::InlineAsmOperand::Const { .. } => {} hir::InlineAsmOperand::SymStatic { .. } => {} hir::InlineAsmOperand::Label { block } => { let previous_diverges = self.diverges.get(); diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index bce9fbbd6d1f..120a43576e81 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -110,13 +110,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { self.tcx.erase_regions(ty) } }; - InlineAsmCtxt::new_in_fn( - self.tcx, - self.infcx.typing_env(self.param_env), - enclosing_id, - expr_ty, - ) - .check_asm(asm); + InlineAsmCtxt::new(self.tcx, enclosing_id, expr_ty).check_asm(asm); } } diff --git a/compiler/rustc_hir_typeck/src/lib.rs b/compiler/rustc_hir_typeck/src/lib.rs index c1ed5b0aa507..0130ad775d9e 100644 --- a/compiler/rustc_hir_typeck/src/lib.rs +++ b/compiler/rustc_hir_typeck/src/lib.rs @@ -133,7 +133,12 @@ fn typeck_with_inspect<'tcx>( } let mut fcx = FnCtxt::new(&root_ctxt, param_env, def_id); - if let Some(hir::FnSig { header, decl, .. }) = node.fn_sig() { + if let hir::Node::Item(hir::Item { kind: hir::ItemKind::GlobalAsm { .. }, .. }) = node { + // Check the fake body of a global ASM. There's not much to do here except + // for visit the asm expr of the body. + let ty = fcx.check_expr(body.value); + fcx.write_ty(id, ty); + } else if let Some(hir::FnSig { header, decl, .. }) = node.fn_sig() { let fn_sig = if decl.output.is_suggestable_infer_ty().is_some() { // In the case that we're recovering `fn() -> W<_>` or some other return // type that has an infer in it, lower the type directly so that it'll @@ -277,12 +282,9 @@ fn infer_type_if_missing<'tcx>(fcx: &FnCtxt<'_, 'tcx>, node: Node<'tcx>) -> Opti Some(fcx.next_ty_var(span)) } Node::Expr(&hir::Expr { kind: hir::ExprKind::InlineAsm(asm), span, .. }) - | Node::Item(&hir::Item { kind: hir::ItemKind::GlobalAsm { asm }, span, .. }) => { + | Node::Item(&hir::Item { kind: hir::ItemKind::GlobalAsm { asm, .. }, span, .. }) => { asm.operands.iter().find_map(|(op, _op_sp)| match op { - hir::InlineAsmOperand::Const { anon_const } - | hir::InlineAsmOperand::SymFn { anon_const } - if anon_const.hir_id == id => - { + hir::InlineAsmOperand::Const { anon_const } if anon_const.hir_id == id => { Some(fcx.next_ty_var(span)) } _ => None, diff --git a/compiler/rustc_hir_typeck/src/writeback.rs b/compiler/rustc_hir_typeck/src/writeback.rs index 8c50cc59c1d5..3e9ce0e11e40 100644 --- a/compiler/rustc_hir_typeck/src/writeback.rs +++ b/compiler/rustc_hir_typeck/src/writeback.rs @@ -48,13 +48,16 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { for param in body.params { wbcx.visit_node_id(param.pat.span, param.hir_id); } - // Type only exists for constants and statics, not functions. match self.tcx.hir_body_owner_kind(item_def_id) { - hir::BodyOwnerKind::Const { .. } | hir::BodyOwnerKind::Static(_) => { + // Visit the type of a const or static, which is used during THIR building. + hir::BodyOwnerKind::Const { .. } + | hir::BodyOwnerKind::Static(_) + | hir::BodyOwnerKind::GlobalAsm => { let item_hir_id = self.tcx.local_def_id_to_hir_id(item_def_id); wbcx.visit_node_id(body.value.span, item_hir_id); } - hir::BodyOwnerKind::Closure | hir::BodyOwnerKind::Fn => (), + // For closures and consts, we already plan to visit liberated signatures. + hir::BodyOwnerKind::Closure | hir::BodyOwnerKind::Fn => {} } wbcx.visit_body(body); wbcx.visit_min_capture_map(); diff --git a/compiler/rustc_lint/src/builtin.rs b/compiler/rustc_lint/src/builtin.rs index b5f09ff346a7..6c5a2dcd1460 100644 --- a/compiler/rustc_lint/src/builtin.rs +++ b/compiler/rustc_lint/src/builtin.rs @@ -2909,7 +2909,13 @@ enum AsmLabelKind { impl<'tcx> LateLintPass<'tcx> for AsmLabels { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { if let hir::Expr { - kind: hir::ExprKind::InlineAsm(hir::InlineAsm { template_strs, options, .. }), + kind: + hir::ExprKind::InlineAsm(hir::InlineAsm { + asm_macro: AsmMacro::Asm | AsmMacro::NakedAsm, + template_strs, + options, + .. + }), .. } = expr { diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 832f80266145..ec046d82ef64 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -305,6 +305,7 @@ impl<'tcx> TyCtxt<'tcx> { DefKind::Static { safety: _, mutability, nested: false } => { BodyOwnerKind::Static(mutability) } + DefKind::GlobalAsm => BodyOwnerKind::GlobalAsm, dk => bug!("{:?} is not a body node: {:?}", def_id, dk), } } @@ -327,7 +328,7 @@ impl<'tcx> TyCtxt<'tcx> { ConstContext::ConstFn } BodyOwnerKind::Fn if self.is_const_default_method(def_id) => ConstContext::ConstFn, - BodyOwnerKind::Fn | BodyOwnerKind::Closure => return None, + BodyOwnerKind::Fn | BodyOwnerKind::Closure | BodyOwnerKind::GlobalAsm => return None, }; Some(ccx) diff --git a/compiler/rustc_middle/src/thir.rs b/compiler/rustc_middle/src/thir.rs index 98cc00c367cf..6a2672ac02b7 100644 --- a/compiler/rustc_middle/src/thir.rs +++ b/compiler/rustc_middle/src/thir.rs @@ -94,6 +94,7 @@ thir_with_elements! { pub enum BodyTy<'tcx> { Const(Ty<'tcx>), Fn(FnSig<'tcx>), + GlobalAsm(Ty<'tcx>), } /// Description of a type-checked function parameter. @@ -605,8 +606,7 @@ pub enum InlineAsmOperand<'tcx> { span: Span, }, SymFn { - value: mir::Const<'tcx>, - span: Span, + value: ExprId, }, SymStatic { def_id: DefId, diff --git a/compiler/rustc_middle/src/thir/visit.rs b/compiler/rustc_middle/src/thir/visit.rs index 13b8af55e518..e347a64e45d0 100644 --- a/compiler/rustc_middle/src/thir/visit.rs +++ b/compiler/rustc_middle/src/thir/visit.rs @@ -172,7 +172,7 @@ pub fn walk_expr<'thir, 'tcx: 'thir, V: Visitor<'thir, 'tcx>>( } Out { expr: None, reg: _, late: _ } | Const { value: _, span: _ } - | SymFn { value: _, span: _ } + | SymFn { value: _ } | SymStatic { def_id: _ } => {} Label { block } => visitor.visit_block(&visitor.thir()[*block]), } diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 32a9e67f9ad5..361e204fb0f0 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1472,7 +1472,11 @@ impl<'tcx> TyCtxt<'tcx> { self.codegen_fn_attrs(def_id) } else if matches!( def_kind, - DefKind::AnonConst | DefKind::AssocConst | DefKind::Const | DefKind::InlineConst + DefKind::AnonConst + | DefKind::AssocConst + | DefKind::Const + | DefKind::InlineConst + | DefKind::GlobalAsm ) { CodegenFnAttrs::EMPTY } else { diff --git a/compiler/rustc_mir_build/src/builder/expr/into.rs b/compiler/rustc_mir_build/src/builder/expr/into.rs index 65dd061003d8..72443e2f60dd 100644 --- a/compiler/rustc_mir_build/src/builder/expr/into.rs +++ b/compiler/rustc_mir_build/src/builder/expr/into.rs @@ -482,15 +482,9 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { }), } } - thir::InlineAsmOperand::SymFn { value, span } => { - mir::InlineAsmOperand::SymFn { - value: Box::new(ConstOperand { - span, - user_ty: None, - const_: value, - }), - } - } + thir::InlineAsmOperand::SymFn { value } => mir::InlineAsmOperand::SymFn { + value: Box::new(this.as_constant(&this.thir[value])), + }, thir::InlineAsmOperand::SymStatic { def_id } => { mir::InlineAsmOperand::SymStatic { def_id } } @@ -518,10 +512,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { } let asm_macro = match asm_macro { - AsmMacro::Asm => InlineAsmMacro::Asm, - AsmMacro::GlobalAsm => { - span_bug!(expr_span, "unexpected global_asm! in inline asm") - } + AsmMacro::Asm | AsmMacro::GlobalAsm => InlineAsmMacro::Asm, AsmMacro::NakedAsm => InlineAsmMacro::NakedAsm, }; diff --git a/compiler/rustc_mir_build/src/builder/mod.rs b/compiler/rustc_mir_build/src/builder/mod.rs index 4348b7a4b4cc..949559549345 100644 --- a/compiler/rustc_mir_build/src/builder/mod.rs +++ b/compiler/rustc_mir_build/src/builder/mod.rs @@ -61,7 +61,9 @@ pub fn build_mir<'tcx>(tcx: TyCtxt<'tcx>, def: LocalDefId) -> Body<'tcx> { Ok((thir, expr)) => { let build_mir = |thir: &Thir<'tcx>| match thir.body_type { thir::BodyTy::Fn(fn_sig) => construct_fn(tcx, def, thir, expr, fn_sig), - thir::BodyTy::Const(ty) => construct_const(tcx, def, thir, expr, ty), + thir::BodyTy::Const(ty) | thir::BodyTy::GlobalAsm(ty) => { + construct_const(tcx, def, thir, expr, ty) + } }; // this must run before MIR dump, because @@ -576,6 +578,7 @@ fn construct_const<'a, 'tcx>( let span = tcx.def_span(def); (span, span) } + Node::Item(hir::Item { kind: hir::ItemKind::GlobalAsm { .. }, span, .. }) => (*span, *span), _ => span_bug!(tcx.def_span(def), "can't build MIR for {:?}", def), }; diff --git a/compiler/rustc_mir_build/src/check_unsafety.rs b/compiler/rustc_mir_build/src/check_unsafety.rs index d65c2097d226..c2eafd0a74e6 100644 --- a/compiler/rustc_mir_build/src/check_unsafety.rs +++ b/compiler/rustc_mir_build/src/check_unsafety.rs @@ -2,6 +2,7 @@ use std::borrow::Cow; use std::mem; use std::ops::Bound; +use rustc_ast::AsmMacro; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_errors::DiagArgValue; use rustc_hir::def::DefKind; @@ -559,7 +560,7 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { } } ExprKind::InlineAsm(box InlineAsmExpr { - asm_macro: _, + asm_macro: AsmMacro::Asm | AsmMacro::NakedAsm, ref operands, template: _, options: _, @@ -583,7 +584,7 @@ impl<'a, 'tcx> Visitor<'a, 'tcx> for UnsafetyVisitor<'a, 'tcx> { } Out { expr: None, reg: _, late: _ } | Const { value: _, span: _ } - | SymFn { value: _, span: _ } + | SymFn { value: _ } | SymStatic { def_id: _ } => {} Label { block } => { // Label blocks are safe context. diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs index d0fca76fcf05..29bc1d6572df 100644 --- a/compiler/rustc_mir_build/src/thir/cx/expr.rs +++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs @@ -739,13 +739,8 @@ impl<'tcx> ThirBuildCx<'tcx> { InlineAsmOperand::Const { value, span } } - hir::InlineAsmOperand::SymFn { ref anon_const } => { - let value = - mir::Const::from_unevaluated(tcx, anon_const.def_id.to_def_id()) - .instantiate_identity(); - let span = tcx.def_span(anon_const.def_id); - - InlineAsmOperand::SymFn { value, span } + hir::InlineAsmOperand::SymFn { expr } => { + InlineAsmOperand::SymFn { value: self.mirror_expr(expr) } } hir::InlineAsmOperand::SymStatic { path: _, def_id } => { InlineAsmOperand::SymStatic { def_id } diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs index 7a9f6e463045..c32082c609ec 100644 --- a/compiler/rustc_mir_build/src/thir/cx/mod.rs +++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs @@ -76,23 +76,29 @@ impl<'tcx> ThirBuildCx<'tcx> { let hir = tcx.hir(); let hir_id = tcx.local_def_id_to_hir_id(def); - let body_type = if tcx.hir_body_owner_kind(def).is_fn_or_closure() { - // fetch the fully liberated fn signature (that is, all bound - // types/lifetimes replaced) - BodyTy::Fn(typeck_results.liberated_fn_sigs()[hir_id]) - } else { - // Get the revealed type of this const. This is *not* the adjusted - // type of its body, which may be a subtype of this type. For - // example: - // - // fn foo(_: &()) {} - // static X: fn(&'static ()) = foo; - // - // The adjusted type of the body of X is `for<'a> fn(&'a ())` which - // is not the same as the type of X. We need the type of the return - // place to be the type of the constant because NLL typeck will - // equate them. - BodyTy::Const(typeck_results.node_type(hir_id)) + let body_type = match tcx.hir_body_owner_kind(def) { + rustc_hir::BodyOwnerKind::Fn | rustc_hir::BodyOwnerKind::Closure => { + // fetch the fully liberated fn signature (that is, all bound + // types/lifetimes replaced) + BodyTy::Fn(typeck_results.liberated_fn_sigs()[hir_id]) + } + rustc_hir::BodyOwnerKind::Const { .. } | rustc_hir::BodyOwnerKind::Static(_) => { + // Get the revealed type of this const. This is *not* the adjusted + // type of its body, which may be a subtype of this type. For + // example: + // + // fn foo(_: &()) {} + // static X: fn(&'static ()) = foo; + // + // The adjusted type of the body of X is `for<'a> fn(&'a ())` which + // is not the same as the type of X. We need the type of the return + // place to be the type of the constant because NLL typeck will + // equate them. + BodyTy::Const(typeck_results.node_type(hir_id)) + } + rustc_hir::BodyOwnerKind::GlobalAsm => { + BodyTy::GlobalAsm(typeck_results.node_type(hir_id)) + } }; Self { diff --git a/compiler/rustc_mir_build/src/thir/print.rs b/compiler/rustc_mir_build/src/thir/print.rs index 9ab87dd99ffc..cd56d93afcf7 100644 --- a/compiler/rustc_mir_build/src/thir/print.rs +++ b/compiler/rustc_mir_build/src/thir/print.rs @@ -921,10 +921,10 @@ impl<'a, 'tcx> ThirPrinter<'a, 'tcx> { print_indented!(self, format!("span: {:?}", span), depth_lvl + 1); print_indented!(self, "}", depth_lvl + 1); } - InlineAsmOperand::SymFn { value, span } => { + InlineAsmOperand::SymFn { value } => { print_indented!(self, "InlineAsmOperand::SymFn {", depth_lvl); - print_indented!(self, format!("value: {:?}", *value), depth_lvl + 1); - print_indented!(self, format!("span: {:?}", span), depth_lvl + 1); + print_indented!(self, "value: ", depth_lvl + 1); + self.print_expr(*value, depth_lvl + 2); print_indented!(self, "}", depth_lvl + 1); } InlineAsmOperand::SymStatic { def_id } => { diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index bf56f468179d..694a4dd5b4c4 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -479,24 +479,23 @@ fn collect_items_rec<'tcx>( recursion_depth_reset = None; let item = tcx.hir_item(item_id); - if let hir::ItemKind::GlobalAsm { asm } = item.kind { + if let hir::ItemKind::GlobalAsm { asm, .. } = item.kind { for (op, op_sp) in asm.operands { - match op { + match *op { hir::InlineAsmOperand::Const { .. } => { // Only constants which resolve to a plain integer // are supported. Therefore the value should not // depend on any other items. } - hir::InlineAsmOperand::SymFn { anon_const } => { - let fn_ty = - tcx.typeck_body(anon_const.body).node_type(anon_const.hir_id); + hir::InlineAsmOperand::SymFn { expr } => { + let fn_ty = tcx.typeck(item_id.owner_id).expr_ty(expr); visit_fn_use(tcx, fn_ty, false, *op_sp, &mut used_items); } hir::InlineAsmOperand::SymStatic { path: _, def_id } => { - let instance = Instance::mono(tcx, *def_id); + let instance = Instance::mono(tcx, def_id); if tcx.should_codegen_locally(instance) { trace!("collecting static {:?}", def_id); - used_items.push(dummy_spanned(MonoItem::Static(*def_id))); + used_items.push(dummy_spanned(MonoItem::Static(def_id))); } } hir::InlineAsmOperand::In { .. } diff --git a/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs b/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs index cda99a362dca..c261fd9bd9cb 100644 --- a/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs +++ b/src/tools/clippy/clippy_lints/src/operators/numeric_arithmetic.rs @@ -82,7 +82,7 @@ impl Context { } self.const_span = Some(body_span); }, - hir::BodyOwnerKind::Fn | hir::BodyOwnerKind::Closure => (), + hir::BodyOwnerKind::Fn | hir::BodyOwnerKind::Closure | hir::BodyOwnerKind::GlobalAsm => (), } } diff --git a/src/tools/clippy/clippy_utils/src/hir_utils.rs b/src/tools/clippy/clippy_utils/src/hir_utils.rs index 9ee30094d608..0ac675345ae0 100644 --- a/src/tools/clippy/clippy_utils/src/hir_utils.rs +++ b/src/tools/clippy/clippy_utils/src/hir_utils.rs @@ -968,7 +968,10 @@ impl<'a, 'tcx> SpanlessHash<'a, 'tcx> { self.hash_expr(out_expr); } }, - InlineAsmOperand::Const { anon_const } | InlineAsmOperand::SymFn { anon_const } => { + InlineAsmOperand::SymFn { expr } => { + self.hash_expr(expr); + } + InlineAsmOperand::Const { anon_const } => { self.hash_body(anon_const.body); }, InlineAsmOperand::SymStatic { path, def_id: _ } => self.hash_qpath(path), diff --git a/tests/crashes/111709-2.rs b/tests/crashes/111709-2.rs deleted file mode 100644 index 6c4fb9f28c7d..000000000000 --- a/tests/crashes/111709-2.rs +++ /dev/null @@ -1,15 +0,0 @@ -//@ known-bug: #111709 -//@ edition: 2021 - -use core::arch::asm; - -extern "C" fn test() {} - -fn uwu() { - unsafe { - asm!( - "/* {0} */", - sym test::<&mut ()> - ); - } -} diff --git a/tests/crashes/111709.rs b/tests/crashes/111709.rs deleted file mode 100644 index eef375b8924b..000000000000 --- a/tests/crashes/111709.rs +++ /dev/null @@ -1,25 +0,0 @@ -//@ known-bug: #111709 -//@ edition:2021 - -use core::arch::asm; - -struct TrapFrame; - -unsafe extern "C" fn _rust_abi_shim1(arg: A, f: fn(A) -> R) -> R { - f(arg) -} - -unsafe extern "C" fn _start_trap() { - extern "Rust" { - fn interrupt(tf: &mut TrapFrame); - } - asm!( - " - la a1, {irq} - call {shim} - ", - shim = sym crate::_rust_abi_shim1::<&mut TrapFrame, ()>, - irq = sym interrupt, - options(noreturn) - ) -} diff --git a/tests/crashes/96304.rs b/tests/crashes/96304.rs deleted file mode 100644 index 637012f45858..000000000000 --- a/tests/crashes/96304.rs +++ /dev/null @@ -1,6 +0,0 @@ -//@ known-bug: #96304 - -#![feature(asm_sym)] -core::arch::global_asm!("/* {} */", sym<&'static ()>::clone); - -pub fn main() {} diff --git a/tests/ui/asm/asm-with-nested-closure.rs b/tests/ui/asm/asm-with-nested-closure.rs new file mode 100644 index 000000000000..3a5cd48d5d4d --- /dev/null +++ b/tests/ui/asm/asm-with-nested-closure.rs @@ -0,0 +1,11 @@ +//@ build-pass +//@ needs-asm-support + +fn foo() {} + +core::arch::global_asm!("/* {} */", sym foo::<{ + || {}; + 0 +}>); + +fn main() {} diff --git a/tests/ui/asm/global-asm-with-lifetimes.rs b/tests/ui/asm/global-asm-with-lifetimes.rs new file mode 100644 index 000000000000..2709ff90fe33 --- /dev/null +++ b/tests/ui/asm/global-asm-with-lifetimes.rs @@ -0,0 +1,8 @@ +//@ build-pass +//@ needs-asm-support + +fn foo() {} + +core::arch::global_asm!("/* {} */", sym foo::<&'static ()>); + +fn main() {} diff --git a/tests/ui/asm/inline-asm-with-lifetimes.bad.stderr b/tests/ui/asm/inline-asm-with-lifetimes.bad.stderr new file mode 100644 index 000000000000..f04482f9c591 --- /dev/null +++ b/tests/ui/asm/inline-asm-with-lifetimes.bad.stderr @@ -0,0 +1,17 @@ +error[E0309]: the parameter type `T` may not live long enough + --> $DIR/inline-asm-with-lifetimes.rs:17:26 + | +LL | fn test<'a: 'a, T>() { + | -- the parameter type `T` must be valid for the lifetime `'a` as defined here... +LL | unsafe { +LL | asm!("/* {} */", sym dep::<'a, T> ); + | ^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds + | +help: consider adding an explicit lifetime bound + | +LL | fn test<'a: 'a, T: 'a>() { + | ++++ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0309`. diff --git a/tests/ui/asm/inline-asm-with-lifetimes.rs b/tests/ui/asm/inline-asm-with-lifetimes.rs new file mode 100644 index 000000000000..79def03eeb23 --- /dev/null +++ b/tests/ui/asm/inline-asm-with-lifetimes.rs @@ -0,0 +1,22 @@ +//@ revisions: good bad +//@[good] build-pass +//@ needs-asm-support + +use std::arch::asm; + +// lifetime requirement, we should check it!! +#[cfg(bad)] +fn dep<'a, T: 'a>() {} + +// no lifetime requirement +#[cfg(good)] +fn dep<'a: 'a, T>() {} + +fn test<'a: 'a, T>() { + unsafe { + asm!("/* {} */", sym dep::<'a, T> ); + //[bad]~^ ERROR the parameter type `T` may not live long enough + } +} + +fn main() {} From 3d5438accdd111b4e507bbfae5e2df6062fb5689 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 18:28:48 +0000 Subject: [PATCH 233/255] Fix binding mode problems --- compiler/rustc_abi/src/lib.rs | 18 ++++++------ compiler/rustc_ast/src/visit.rs | 2 +- .../src/diagnostics/conflict_errors.rs | 2 +- .../src/diagnostics/explain_borrow.rs | 2 +- .../rustc_borrowck/src/diagnostics/mod.rs | 2 +- .../src/diagnostics/region_name.rs | 4 +-- .../src/back/symbol_export.rs | 4 +-- .../rustc_codegen_ssa/src/codegen_attrs.rs | 6 ++-- compiler/rustc_codegen_ssa/src/mir/block.rs | 4 +-- compiler/rustc_codegen_ssa/src/mir/operand.rs | 2 +- .../src/const_eval/machine.rs | 10 +++---- .../src/sorted_map/tests.rs | 2 +- compiler/rustc_expand/src/mbe/transcribe.rs | 4 +-- compiler/rustc_hir/src/hir/tests.rs | 4 +-- compiler/rustc_hir/src/intravisit.rs | 12 ++++---- .../rustc_hir_analysis/src/collect/type_of.rs | 2 +- .../src/hir_ty_lowering/mod.rs | 7 ++--- compiler/rustc_hir_pretty/src/lib.rs | 2 +- compiler/rustc_hir_typeck/src/callee.rs | 4 +-- compiler/rustc_hir_typeck/src/coercion.rs | 2 +- compiler/rustc_hir_typeck/src/demand.rs | 10 +++---- compiler/rustc_hir_typeck/src/fallback.rs | 2 +- compiler/rustc_hir_typeck/src/method/probe.rs | 2 +- .../rustc_hir_typeck/src/method/suggest.rs | 9 ++---- compiler/rustc_hir_typeck/src/pat.rs | 4 +-- compiler/rustc_index/src/bit_set.rs | 20 +++---------- compiler/rustc_lint/src/non_ascii_idents.rs | 6 ++-- compiler/rustc_lint/src/nonstandard_style.rs | 2 +- compiler/rustc_lint/src/types.rs | 2 +- compiler/rustc_lint_defs/src/lib.rs | 4 +-- .../rustc_macros/src/diagnostics/utils.rs | 4 +-- compiler/rustc_middle/src/middle/mod.rs | 2 +- compiler/rustc_middle/src/mir/mono.rs | 2 +- compiler/rustc_middle/src/mir/pretty.rs | 2 +- compiler/rustc_middle/src/mir/terminator.rs | 2 +- compiler/rustc_middle/src/mir/visit.rs | 6 ++-- compiler/rustc_middle/src/thir.rs | 3 +- compiler/rustc_middle/src/thir/visit.rs | 2 +- compiler/rustc_middle/src/traits/mod.rs | 2 +- .../rustc_middle/src/ty/structural_impls.rs | 16 +++++------ compiler/rustc_middle/src/ty/sty.rs | 2 +- compiler/rustc_mir_build/src/builder/block.rs | 2 +- compiler/rustc_mir_build/src/thir/cx/expr.rs | 4 +-- .../src/thir/pattern/check_match.rs | 4 +-- compiler/rustc_mir_build/src/thir/util.rs | 2 +- compiler/rustc_mir_dataflow/src/un_derefer.rs | 2 +- .../rustc_mir_dataflow/src/value_analysis.rs | 4 +-- .../rustc_mir_transform/src/jump_threading.rs | 2 +- .../src/known_panics_lint.rs | 6 ++-- .../src/mentioned_items.rs | 2 +- compiler/rustc_mir_transform/src/simplify.rs | 6 ++-- .../src/simplify_branches.rs | 2 +- .../src/simplify_comparison_integral.rs | 4 +-- .../rustc_monomorphize/src/partitioning.rs | 2 +- compiler/rustc_passes/src/dead.rs | 2 +- compiler/rustc_passes/src/stability.rs | 6 +--- compiler/rustc_resolve/src/imports.rs | 18 ++++++------ compiler/rustc_resolve/src/late.rs | 28 +++++++++---------- .../rustc_resolve/src/late/diagnostics.rs | 6 ++-- compiler/rustc_session/src/session.rs | 3 +- compiler/rustc_span/src/lib.rs | 4 +-- .../src/error_reporting/infer/suggest.rs | 2 +- .../traits/fulfillment_errors.rs | 2 +- .../src/error_reporting/traits/suggestions.rs | 2 +- compiler/rustc_trait_selection/src/errors.rs | 13 ++++----- .../src/solve/fulfill.rs | 4 ++- .../src/traits/dyn_compatibility.rs | 4 +-- 67 files changed, 154 insertions(+), 181 deletions(-) diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 098638b6bcfa..34228912041d 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -329,19 +329,19 @@ impl TargetDataLayout { [p] if p.starts_with('P') => { dl.instruction_address_space = parse_address_space(&p[1..], "P")? } - ["a", ref a @ ..] => dl.aggregate_align = parse_align(a, "a")?, - ["f16", ref a @ ..] => dl.f16_align = parse_align(a, "f16")?, - ["f32", ref a @ ..] => dl.f32_align = parse_align(a, "f32")?, - ["f64", ref a @ ..] => dl.f64_align = parse_align(a, "f64")?, - ["f128", ref a @ ..] => dl.f128_align = parse_align(a, "f128")?, + ["a", a @ ..] => dl.aggregate_align = parse_align(a, "a")?, + ["f16", a @ ..] => dl.f16_align = parse_align(a, "f16")?, + ["f32", a @ ..] => dl.f32_align = parse_align(a, "f32")?, + ["f64", a @ ..] => dl.f64_align = parse_align(a, "f64")?, + ["f128", a @ ..] => dl.f128_align = parse_align(a, "f128")?, // FIXME(erikdesjardins): we should be parsing nonzero address spaces // this will require replacing TargetDataLayout::{pointer_size,pointer_align} // with e.g. `fn pointer_size_in(AddressSpace)` - [p @ "p", s, ref a @ ..] | [p @ "p0", s, ref a @ ..] => { + [p @ "p", s, a @ ..] | [p @ "p0", s, a @ ..] => { dl.pointer_size = parse_size(s, p)?; dl.pointer_align = parse_align(a, p)?; } - [s, ref a @ ..] if s.starts_with('i') => { + [s, a @ ..] if s.starts_with('i') => { let Ok(bits) = s[1..].parse::() else { parse_size(&s[1..], "i")?; // For the user error. continue; @@ -362,7 +362,7 @@ impl TargetDataLayout { dl.i128_align = a; } } - [s, ref a @ ..] if s.starts_with('v') => { + [s, a @ ..] if s.starts_with('v') => { let v_size = parse_size(&s[1..], "v")?; let a = parse_align(a, s)?; if let Some(v) = dl.vector_align.iter_mut().find(|v| v.0 == v_size) { @@ -1802,7 +1802,7 @@ where variants, max_repr_align, unadjusted_abi_align, - ref randomization_seed, + randomization_seed, } = self; f.debug_struct("Layout") .field("size", size) diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index 3242d4145959..1cb32b56875c 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -597,7 +597,7 @@ pub fn walk_use_tree<'a, V: Visitor<'a>>( visit_opt!(visitor, visit_ident, rename); } UseTreeKind::Glob => {} - UseTreeKind::Nested { ref items, span: _ } => { + UseTreeKind::Nested { items, span: _ } => { for &(ref nested_tree, nested_id) in items { try_visit!(visitor.visit_use_tree(nested_tree, nested_id, true)); } diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 5a526da0087e..94662070db40 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -2617,7 +2617,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { if let hir::Pat { kind: hir::PatKind::Binding(_, hir_id, _ident, _), .. } = local.pat && let Some(init) = local.init - && let hir::Expr { + && let &hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { kind: hir::ClosureKind::Closure, diff --git a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs index b2b66eabb38b..f77dda0d386a 100644 --- a/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs +++ b/compiler/rustc_borrowck/src/diagnostics/explain_borrow.rs @@ -262,7 +262,7 @@ impl<'tcx> BorrowExplanation<'tcx> { fn visit_expr(&mut self, expr: &'hir hir::Expr<'hir>) { if let hir::ExprKind::If(cond, _conseq, _alt) | hir::ExprKind::Loop( - hir::Block { + &hir::Block { expr: Some(&hir::Expr { kind: hir::ExprKind::If(cond, _conseq, _alt), diff --git a/compiler/rustc_borrowck/src/diagnostics/mod.rs b/compiler/rustc_borrowck/src/diagnostics/mod.rs index 7da089c5e8c6..d1f238331d56 100644 --- a/compiler/rustc_borrowck/src/diagnostics/mod.rs +++ b/compiler/rustc_borrowck/src/diagnostics/mod.rs @@ -1126,7 +1126,7 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { let hir_id = self.infcx.tcx.local_def_id_to_hir_id(def_id); let expr = &self.infcx.tcx.hir().expect_expr(hir_id).kind; debug!("closure_span: hir_id={:?} expr={:?}", hir_id, expr); - if let hir::ExprKind::Closure(&hir::Closure { kind, fn_decl_span, .. }) = expr { + if let &hir::ExprKind::Closure(&hir::Closure { kind, fn_decl_span, .. }) = expr { for (captured_place, place) in self.infcx.tcx.closure_captures(def_id).iter().zip(places) { diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 88804560f28e..be28f84debd9 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -681,7 +681,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { let mir_hir_id = self.mir_hir_id(); let (return_span, mir_description, hir_ty) = match tcx.hir_node(mir_hir_id) { - hir::Node::Expr(hir::Expr { + hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl, kind, fn_decl_span, .. }), .. }) => { @@ -873,7 +873,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { .name; let yield_span = match tcx.hir_node(self.mir_hir_id()) { - hir::Node::Expr(hir::Expr { + hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. }) => tcx.sess.source_map().end_point(fn_decl_span), diff --git a/compiler/rustc_codegen_ssa/src/back/symbol_export.rs b/compiler/rustc_codegen_ssa/src/back/symbol_export.rs index 12ee872d5314..459f4329d6e9 100644 --- a/compiler/rustc_codegen_ssa/src/back/symbol_export.rs +++ b/compiler/rustc_codegen_ssa/src/back/symbol_export.rs @@ -183,11 +183,11 @@ fn exported_symbols_provider_local( }); let mut symbols: Vec<_> = - sorted.iter().map(|(&def_id, &info)| (ExportedSymbol::NonGeneric(def_id), info)).collect(); + sorted.iter().map(|&(&def_id, &info)| (ExportedSymbol::NonGeneric(def_id), info)).collect(); // Export TLS shims if !tcx.sess.target.dll_tls_export { - symbols.extend(sorted.iter().filter_map(|(&def_id, &info)| { + symbols.extend(sorted.iter().filter_map(|&(&def_id, &info)| { tcx.needs_thread_local_shim(def_id).then(|| { ( ExportedSymbol::ThreadLocalShim(def_id), diff --git a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs index 3e9dfcea58b8..286e5e179085 100644 --- a/compiler/rustc_codegen_ssa/src/codegen_attrs.rs +++ b/compiler/rustc_codegen_ssa/src/codegen_attrs.rs @@ -894,7 +894,7 @@ fn autodiff_attrs(tcx: TyCtxt<'_>, id: DefId) -> Option { let [mode, input_activities @ .., ret_activity] = &list[..] else { span_bug!(attr.span, "rustc_autodiff attribute must contain mode and activities"); }; - let mode = if let MetaItemInner::MetaItem(MetaItem { path: ref p1, .. }) = mode { + let mode = if let MetaItemInner::MetaItem(MetaItem { path: p1, .. }) = mode { p1.segments.first().unwrap().ident } else { span_bug!(attr.span, "rustc_autodiff attribute must contain mode"); @@ -910,7 +910,7 @@ fn autodiff_attrs(tcx: TyCtxt<'_>, id: DefId) -> Option { }; // First read the ret symbol from the attribute - let ret_symbol = if let MetaItemInner::MetaItem(MetaItem { path: ref p1, .. }) = ret_activity { + let ret_symbol = if let MetaItemInner::MetaItem(MetaItem { path: p1, .. }) = ret_activity { p1.segments.first().unwrap().ident } else { span_bug!(attr.span, "rustc_autodiff attribute must contain the return activity"); @@ -924,7 +924,7 @@ fn autodiff_attrs(tcx: TyCtxt<'_>, id: DefId) -> Option { // Now parse all the intermediate (input) activities let mut arg_activities: Vec = vec![]; for arg in input_activities { - let arg_symbol = if let MetaItemInner::MetaItem(MetaItem { path: ref p2, .. }) = arg { + let arg_symbol = if let MetaItemInner::MetaItem(MetaItem { path: p2, .. }) = arg { match p2.segments.first() { Some(x) => x.ident, None => { diff --git a/compiler/rustc_codegen_ssa/src/mir/block.rs b/compiler/rustc_codegen_ssa/src/mir/block.rs index 49074996174a..676a241c74b4 100644 --- a/compiler/rustc_codegen_ssa/src/mir/block.rs +++ b/compiler/rustc_codegen_ssa/src/mir/block.rs @@ -720,14 +720,14 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // Put together the arguments to the panic entry point. let (lang_item, args) = match msg { - AssertKind::BoundsCheck { ref len, ref index } => { + AssertKind::BoundsCheck { len, index } => { let len = self.codegen_operand(bx, len).immediate(); let index = self.codegen_operand(bx, index).immediate(); // It's `fn panic_bounds_check(index: usize, len: usize)`, // and `#[track_caller]` adds an implicit third argument. (LangItem::PanicBoundsCheck, vec![index, len, location]) } - AssertKind::MisalignedPointerDereference { ref required, ref found } => { + AssertKind::MisalignedPointerDereference { required, found } => { let required = self.codegen_operand(bx, required).immediate(); let found = self.codegen_operand(bx, found).immediate(); // It's `fn panic_misaligned_pointer_dereference(required: usize, found: usize)`, diff --git a/compiler/rustc_codegen_ssa/src/mir/operand.rs b/compiler/rustc_codegen_ssa/src/mir/operand.rs index e7e4dfa05d0c..461cf1b8acda 100644 --- a/compiler/rustc_codegen_ssa/src/mir/operand.rs +++ b/compiler/rustc_codegen_ssa/src/mir/operand.rs @@ -584,7 +584,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> { // Moves out of scalar and scalar pair fields are trivial. for elem in place_ref.projection.iter() { match elem { - mir::ProjectionElem::Field(ref f, _) => { + mir::ProjectionElem::Field(f, _) => { assert!( !o.layout.ty.is_any_ptr(), "Bad PlaceRef: destructing pointers should use cast/PtrMetadata, \ diff --git a/compiler/rustc_const_eval/src/const_eval/machine.rs b/compiler/rustc_const_eval/src/const_eval/machine.rs index 82e0a6e6666f..4db862afd9f6 100644 --- a/compiler/rustc_const_eval/src/const_eval/machine.rs +++ b/compiler/rustc_const_eval/src/const_eval/machine.rs @@ -502,12 +502,10 @@ impl<'tcx> interpret::Machine<'tcx> for CompileTimeMachine<'tcx> { RemainderByZero(op) => RemainderByZero(eval_to_int(op)?), ResumedAfterReturn(coroutine_kind) => ResumedAfterReturn(*coroutine_kind), ResumedAfterPanic(coroutine_kind) => ResumedAfterPanic(*coroutine_kind), - MisalignedPointerDereference { ref required, ref found } => { - MisalignedPointerDereference { - required: eval_to_int(required)?, - found: eval_to_int(found)?, - } - } + MisalignedPointerDereference { required, found } => MisalignedPointerDereference { + required: eval_to_int(required)?, + found: eval_to_int(found)?, + }, NullPointerDereference => NullPointerDereference, }; Err(ConstEvalErrKind::AssertFailure(err)).into() diff --git a/compiler/rustc_data_structures/src/sorted_map/tests.rs b/compiler/rustc_data_structures/src/sorted_map/tests.rs index def7a7112fb3..ea4d2f1feacc 100644 --- a/compiler/rustc_data_structures/src/sorted_map/tests.rs +++ b/compiler/rustc_data_structures/src/sorted_map/tests.rs @@ -24,7 +24,7 @@ fn test_sorted_index_multi_map() { // `get_by_key` returns items in insertion order. let twos: Vec<_> = set.get_by_key_enumerated(2).collect(); let idxs: Vec = twos.iter().map(|(i, _)| *i).collect(); - let values: Vec = twos.iter().map(|(_, &v)| v).collect(); + let values: Vec = twos.iter().map(|&(_, &v)| v).collect(); assert_eq!(idxs, vec![0, 2, 4]); assert_eq!(values, vec![0, 1, 2]); diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs index 595c8c3279f4..b7c85dd4f2c8 100644 --- a/compiler/rustc_expand/src/mbe/transcribe.rs +++ b/compiler/rustc_expand/src/mbe/transcribe.rs @@ -255,7 +255,7 @@ pub(super) fn transcribe<'a>( } // Replace the meta-var with the matched token tree from the invocation. - mbe::TokenTree::MetaVar(mut sp, mut original_ident) => { + &mbe::TokenTree::MetaVar(mut sp, mut original_ident) => { // Find the matched nonterminal from the macro invocation, and use it to replace // the meta-var. // @@ -339,7 +339,7 @@ pub(super) fn transcribe<'a>( // We will produce all of the results of the inside of the `Delimited` and then we will // jump back out of the Delimited, pop the result_stack and add the new results back to // the previous results (from outside the Delimited). - mbe::TokenTree::Delimited(mut span, spacing, delimited) => { + &mbe::TokenTree::Delimited(mut span, ref spacing, ref delimited) => { mut_visit::visit_delim_span(&mut marker, &mut span); stack.push(Frame::new_delimited(delimited, span, *spacing)); result_stack.push(mem::take(&mut result)); diff --git a/compiler/rustc_hir/src/hir/tests.rs b/compiler/rustc_hir/src/hir/tests.rs index 300d44355303..f75b9662132e 100644 --- a/compiler/rustc_hir/src/hir/tests.rs +++ b/compiler/rustc_hir/src/hir/tests.rs @@ -9,11 +9,11 @@ macro_rules! define_tests { let unambig = $kind::$variant::<'_, ()> { $($init)* }; let unambig_to_ambig = unsafe { std::mem::transmute::<_, $kind<'_, AmbigArg>>(unambig) }; - assert!(matches!(&unambig_to_ambig, $kind::$variant { $($init)* })); + assert!(matches!(&unambig_to_ambig, &$kind::$variant { $($init)* })); let ambig_to_unambig = unsafe { std::mem::transmute::<_, $kind<'_, ()>>(unambig_to_ambig) }; - assert!(matches!(&ambig_to_unambig, $kind::$variant { $($init)* })); + assert!(matches!(&ambig_to_unambig, &$kind::$variant { $($init)* })); } )*}; } diff --git a/compiler/rustc_hir/src/intravisit.rs b/compiler/rustc_hir/src/intravisit.rs index bd96fe9ee32c..f62ae5ed0d63 100644 --- a/compiler/rustc_hir/src/intravisit.rs +++ b/compiler/rustc_hir/src/intravisit.rs @@ -593,9 +593,9 @@ pub fn walk_item<'v, V: Visitor<'v>>(visitor: &mut V, item: &'v Item<'v>) -> V:: defaultness: _, polarity: _, defaultness_span: _, - ref generics, - ref of_trait, - ref self_ty, + generics, + of_trait, + self_ty, items, }) => { try_visit!(visitor.visit_id(item.hir_id())); @@ -1045,7 +1045,7 @@ pub fn walk_generic_param<'v, V: Visitor<'v>>( } GenericParamKind::Const { ref ty, ref default, synthetic: _ } => { try_visit!(visitor.visit_ty_unambig(ty)); - if let Some(ref default) = default { + if let Some(default) = default { try_visit!(visitor.visit_const_param_default(param.hir_id, default)); } } @@ -1401,8 +1401,8 @@ pub fn walk_assoc_item_constraint<'v, V: Visitor<'v>>( try_visit!(visitor.visit_generic_args(constraint.gen_args)); match constraint.kind { AssocItemConstraintKind::Equality { ref term } => match term { - Term::Ty(ref ty) => try_visit!(visitor.visit_ty_unambig(ty)), - Term::Const(ref c) => try_visit!(visitor.visit_const_arg_unambig(c)), + Term::Ty(ty) => try_visit!(visitor.visit_ty_unambig(ty)), + Term::Const(c) => try_visit!(visitor.visit_const_arg_unambig(c)), }, AssocItemConstraintKind::Bound { bounds } => { walk_list!(visitor, visit_param_bound, bounds) diff --git a/compiler/rustc_hir_analysis/src/collect/type_of.rs b/compiler/rustc_hir_analysis/src/collect/type_of.rs index 717713d93399..cd5cf3bc2df1 100644 --- a/compiler/rustc_hir_analysis/src/collect/type_of.rs +++ b/compiler/rustc_hir_analysis/src/collect/type_of.rs @@ -106,7 +106,7 @@ fn anon_const_type_of<'tcx>(icx: &ItemCtxt<'tcx>, def_id: LocalDefId) -> Ty<'tcx } } } - Node::Variant(Variant { disr_expr: Some(ref e), .. }) if e.hir_id == hir_id => { + Node::Variant(Variant { disr_expr: Some(e), .. }) if e.hir_id == hir_id => { tcx.adt_def(tcx.hir_get_parent_item(hir_id)).repr().discr_type().to_ty(tcx) } // Sort of affects the type system, but only for the purpose of diagnostics diff --git a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs index fcd0d4d40fd4..750770178eef 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -1226,11 +1226,10 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { adt_def.variants().iter().find(|s| s.name == variant_name) { let mut suggestion = vec![(assoc_ident.span, variant_name.to_string())]; - if let hir::Node::Stmt(hir::Stmt { - kind: hir::StmtKind::Semi(ref expr), - .. + if let hir::Node::Stmt(&hir::Stmt { + kind: hir::StmtKind::Semi(expr), .. }) - | hir::Node::Expr(ref expr) = tcx.parent_hir_node(hir_ref_id) + | hir::Node::Expr(expr) = tcx.parent_hir_node(hir_ref_id) && let hir::ExprKind::Struct(..) = expr.kind { match variant.ctor { diff --git a/compiler/rustc_hir_pretty/src/lib.rs b/compiler/rustc_hir_pretty/src/lib.rs index 34124a6aa11a..82c4d37405ae 100644 --- a/compiler/rustc_hir_pretty/src/lib.rs +++ b/compiler/rustc_hir_pretty/src/lib.rs @@ -1856,7 +1856,7 @@ impl<'a> State<'a> { self.word_space("="); match term { Term::Ty(ty) => self.print_type(ty), - Term::Const(ref c) => self.print_const_arg(c), + Term::Const(c) => self.print_const_arg(c), } } hir::AssocItemConstraintKind::Bound { bounds } => { diff --git a/compiler/rustc_hir_typeck/src/callee.rs b/compiler/rustc_hir_typeck/src/callee.rs index 5de3c05c63c5..d18869b6d90c 100644 --- a/compiler/rustc_hir_typeck/src/callee.rs +++ b/compiler/rustc_hir_typeck/src/callee.rs @@ -346,7 +346,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return; }; - let fn_decl_span = if let hir::Node::Expr(hir::Expr { + let fn_decl_span = if let hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. }) = self.tcx.parent_hir_node(hir_id) @@ -371,7 +371,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { { // Actually need to unwrap one more layer of HIR to get to // the _real_ closure... - if let hir::Node::Expr(hir::Expr { + if let hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { fn_decl_span, .. }), .. }) = self.tcx.parent_hir_node(parent_hir_id) diff --git a/compiler/rustc_hir_typeck/src/coercion.rs b/compiler/rustc_hir_typeck/src/coercion.rs index 625c7f38fbb4..a5108e7a0326 100644 --- a/compiler/rustc_hir_typeck/src/coercion.rs +++ b/compiler/rustc_hir_typeck/src/coercion.rs @@ -1887,7 +1887,7 @@ impl<'tcx, 'exprs, E: AsCoercionSite> CoerceMany<'tcx, 'exprs, E> { let parent_id = fcx.tcx.parent_hir_id(block_or_return_id); let parent = fcx.tcx.hir_node(parent_id); if let Some(expr) = expression - && let hir::Node::Expr(hir::Expr { + && let hir::Node::Expr(&hir::Expr { kind: hir::ExprKind::Closure(&hir::Closure { body, .. }), .. }) = parent diff --git a/compiler/rustc_hir_typeck/src/demand.rs b/compiler/rustc_hir_typeck/src/demand.rs index 38c07e473db3..85131f6195f8 100644 --- a/compiler/rustc_hir_typeck/src/demand.rs +++ b/compiler/rustc_hir_typeck/src/demand.rs @@ -577,9 +577,9 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut parent; 'outer: loop { // Climb the HIR tree to see if the current `Expr` is part of a `break;` statement. - let (hir::Node::Stmt(hir::Stmt { kind: hir::StmtKind::Semi(&ref p), .. }) - | hir::Node::Block(hir::Block { expr: Some(&ref p), .. }) - | hir::Node::Expr(&ref p)) = self.tcx.hir_node(parent_id) + let (hir::Node::Stmt(&hir::Stmt { kind: hir::StmtKind::Semi(p), .. }) + | hir::Node::Block(&hir::Block { expr: Some(p), .. }) + | hir::Node::Expr(p)) = self.tcx.hir_node(parent_id) else { break; }; @@ -593,13 +593,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { loop { // Climb the HIR tree to find the (desugared) `loop` this `break` corresponds to. let parent = match self.tcx.hir_node(parent_id) { - hir::Node::Expr(&ref parent) => { + hir::Node::Expr(parent) => { parent_id = self.tcx.parent_hir_id(parent.hir_id); parent } hir::Node::Stmt(hir::Stmt { hir_id, - kind: hir::StmtKind::Semi(&ref parent) | hir::StmtKind::Expr(&ref parent), + kind: hir::StmtKind::Semi(parent) | hir::StmtKind::Expr(parent), .. }) => { parent_id = self.tcx.parent_hir_id(*hir_id); diff --git a/compiler/rustc_hir_typeck/src/fallback.rs b/compiler/rustc_hir_typeck/src/fallback.rs index e051fc7ac6ca..759b5d9550c0 100644 --- a/compiler/rustc_hir_typeck/src/fallback.rs +++ b/compiler/rustc_hir_typeck/src/fallback.rs @@ -503,7 +503,7 @@ impl<'tcx> FnCtxt<'_, 'tcx> { let unit_errors = remaining_errors_if_fallback_to(self.tcx.types.unit); if unit_errors.is_empty() && let mut never_errors = remaining_errors_if_fallback_to(self.tcx.types.never) - && let [ref mut never_error, ..] = never_errors.as_mut_slice() + && let [never_error, ..] = never_errors.as_mut_slice() { self.adjust_fulfillment_error_for_expr_obligation(never_error); let sugg = self.try_to_suggest_annotations(diverging_vids, coercions); diff --git a/compiler/rustc_hir_typeck/src/method/probe.rs b/compiler/rustc_hir_typeck/src/method/probe.rs index b3e48fd5bb59..f87e5b5202ab 100644 --- a/compiler/rustc_hir_typeck/src/method/probe.rs +++ b/compiler/rustc_hir_typeck/src/method/probe.rs @@ -873,7 +873,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> { #[instrument(level = "debug", skip(self))] fn assemble_inherent_candidates_from_object(&mut self, self_ty: Ty<'tcx>) { let principal = match self_ty.kind() { - ty::Dynamic(ref data, ..) => Some(data), + ty::Dynamic(data, ..) => Some(data), _ => None, } .and_then(|data| data.principal()) diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index c757d089478f..8dd8398ba245 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -1586,10 +1586,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { if let SelfSource::QPath(ty) = source && let hir::Node::Expr(ref path_expr) = self.tcx.parent_hir_node(ty.hir_id) && let hir::ExprKind::Path(_) = path_expr.kind - && let hir::Node::Stmt(hir::Stmt { - kind: hir::StmtKind::Semi(ref parent), .. - }) - | hir::Node::Expr(ref parent) = self.tcx.parent_hir_node(path_expr.hir_id) + && let hir::Node::Stmt(&hir::Stmt { kind: hir::StmtKind::Semi(parent), .. }) + | hir::Node::Expr(parent) = self.tcx.parent_hir_node(path_expr.hir_id) { let replacement_span = if let hir::ExprKind::Call(..) | hir::ExprKind::Struct(..) = parent.kind { @@ -3149,8 +3147,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let mut derives_grouped = Vec::<(String, Span, String)>::new(); for (self_name, self_span, trait_name) in derives.into_iter() { - if let Some((last_self_name, _, ref mut last_trait_names)) = derives_grouped.last_mut() - { + if let Some((last_self_name, _, last_trait_names)) = derives_grouped.last_mut() { if last_self_name == &self_name { last_trait_names.push_str(format!(", {trait_name}").as_str()); continue; diff --git a/compiler/rustc_hir_typeck/src/pat.rs b/compiler/rustc_hir_typeck/src/pat.rs index c56396c38c95..bd0848b99166 100644 --- a/compiler/rustc_hir_typeck/src/pat.rs +++ b/compiler/rustc_hir_typeck/src/pat.rs @@ -324,7 +324,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let PatInfo { binding_mode, max_ref_mutbl, top_info: ti, current_depth, .. } = pat_info; let path_res = match pat.kind { - PatKind::Expr(PatExpr { kind: PatExprKind::Path(ref qpath), hir_id, span }) => { + PatKind::Expr(PatExpr { kind: PatExprKind::Path(qpath), hir_id, span }) => { Some(self.resolve_ty_and_res_fully_qualified_call(qpath, *hir_id, *span)) } _ => None, @@ -344,7 +344,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { PatKind::Wild | PatKind::Err(_) => expected, // We allow any type here; we ensure that the type is uninhabited during match checking. PatKind::Never => expected, - PatKind::Expr(PatExpr { kind: PatExprKind::Path(ref qpath), hir_id, span }) => { + PatKind::Expr(PatExpr { kind: PatExprKind::Path(qpath), hir_id, span }) => { let ty = self.check_pat_path( *hir_id, pat.hir_id, diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index f12df831cb50..d7d90ea16e49 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -723,7 +723,7 @@ impl ChunkedBitSet { match self.chunks.get(chunk_index) { Some(Zeros(_chunk_domain_size)) => ChunkIter::Zeros, Some(Ones(chunk_domain_size)) => ChunkIter::Ones(0..*chunk_domain_size as usize), - Some(Mixed(chunk_domain_size, _, ref words)) => { + Some(Mixed(chunk_domain_size, _, words)) => { let num_words = num_words(*chunk_domain_size as usize); ChunkIter::Mixed(BitIter::new(&words[0..num_words])) } @@ -752,11 +752,7 @@ impl BitRelations> for ChunkedBitSet { changed = true; } ( - Mixed( - self_chunk_domain_size, - ref mut self_chunk_count, - ref mut self_chunk_words, - ), + Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), ) => { // First check if the operation would change @@ -836,11 +832,7 @@ impl BitRelations> for ChunkedBitSet { Mixed(*self_chunk_domain_size, self_chunk_count, Rc::new(self_chunk_words)); } ( - Mixed( - self_chunk_domain_size, - ref mut self_chunk_count, - ref mut self_chunk_words, - ), + Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), ) => { // See [`>>::union`] for the explanation @@ -891,11 +883,7 @@ impl BitRelations> for ChunkedBitSet { *self_chunk = other_chunk.clone(); } ( - Mixed( - self_chunk_domain_size, - ref mut self_chunk_count, - ref mut self_chunk_words, - ), + Mixed(self_chunk_domain_size, self_chunk_count, self_chunk_words), Mixed(_other_chunk_domain_size, _other_chunk_count, other_chunk_words), ) => { // See [`>>::union`] for the explanation diff --git a/compiler/rustc_lint/src/non_ascii_idents.rs b/compiler/rustc_lint/src/non_ascii_idents.rs index 2f9cf98848e9..66e207a451ef 100644 --- a/compiler/rustc_lint/src/non_ascii_idents.rs +++ b/compiler/rustc_lint/src/non_ascii_idents.rs @@ -183,7 +183,7 @@ impl EarlyLintPass for NonAsciiIdents { #[allow(rustc::potential_query_instability)] let mut symbols: Vec<_> = symbols.iter().collect(); symbols.sort_by_key(|k| k.1); - for (symbol, &sp) in symbols.iter() { + for &(ref symbol, &sp) in symbols.iter() { let symbol_str = symbol.as_str(); if symbol_str.is_ascii() { continue; @@ -242,7 +242,7 @@ impl EarlyLintPass for NonAsciiIdents { UnordMap::with_capacity(symbols.len()); let mut skeleton_buf = String::new(); - for (&symbol, &sp) in symbols.iter() { + for &(&symbol, &sp) in symbols.iter() { use unicode_security::confusable_detection::skeleton; let symbol_str = symbol.as_str(); @@ -298,7 +298,7 @@ impl EarlyLintPass for NonAsciiIdents { script_states.insert(latin_augmented_script_set, ScriptSetUsage::Verified); let mut has_suspicious = false; - for (symbol, &sp) in symbols.iter() { + for &(ref symbol, &sp) in symbols.iter() { let symbol_str = symbol.as_str(); for ch in symbol_str.chars() { if ch.is_ascii() { diff --git a/compiler/rustc_lint/src/nonstandard_style.rs b/compiler/rustc_lint/src/nonstandard_style.rs index 5636f80d6002..bc35e2f0538d 100644 --- a/compiler/rustc_lint/src/nonstandard_style.rs +++ b/compiler/rustc_lint/src/nonstandard_style.rs @@ -344,7 +344,7 @@ impl<'tcx> LateLintPass<'tcx> for NonSnakeCase { ast::attr::find_by_name(cx.tcx.hir().attrs(hir::CRATE_HIR_ID), sym::crate_name) .and_then(|attr| { if let AttrKind::Normal(n) = &attr.kind - && let AttrItem { args: AttrArgs::Eq { eq_span: _, expr: ref lit }, .. } = + && let AttrItem { args: AttrArgs::Eq { eq_span: _, expr: lit }, .. } = n.as_ref() && let ast::LitKind::Str(name, ..) = lit.kind { diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 7e242a9f5671..fa019a12469b 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1791,7 +1791,7 @@ impl<'tcx> LateLintPass<'tcx> for VariantSizeDifferences { let t = cx.tcx.type_of(it.owner_id).instantiate_identity(); let ty = cx.tcx.erase_regions(t); let Ok(layout) = cx.layout_of(ty) else { return }; - let Variants::Multiple { tag_encoding: TagEncoding::Direct, tag, ref variants, .. } = + let Variants::Multiple { tag_encoding: TagEncoding::Direct, tag, variants, .. } = &layout.variants else { return; diff --git a/compiler/rustc_lint_defs/src/lib.rs b/compiler/rustc_lint_defs/src/lib.rs index 66fdba28502b..ff3dae08ffc9 100644 --- a/compiler/rustc_lint_defs/src/lib.rs +++ b/compiler/rustc_lint_defs/src/lib.rs @@ -134,8 +134,8 @@ impl LintExpectationId { } pub fn set_lint_index(&mut self, new_lint_index: Option) { - let (LintExpectationId::Unstable { ref mut lint_index, .. } - | LintExpectationId::Stable { ref mut lint_index, .. }) = self; + let (LintExpectationId::Unstable { lint_index, .. } + | LintExpectationId::Stable { lint_index, .. }) = self; *lint_index = new_lint_index } diff --git a/compiler/rustc_macros/src/diagnostics/utils.rs b/compiler/rustc_macros/src/diagnostics/utils.rs index 612a36ba9aa5..060799e981d4 100644 --- a/compiler/rustc_macros/src/diagnostics/utils.rs +++ b/compiler/rustc_macros/src/diagnostics/utils.rs @@ -760,8 +760,8 @@ impl SubdiagnosticVariant { } ( "applicability", - SubdiagnosticKind::Suggestion { ref mut applicability, .. } - | SubdiagnosticKind::MultipartSuggestion { ref mut applicability, .. }, + SubdiagnosticKind::Suggestion { applicability, .. } + | SubdiagnosticKind::MultipartSuggestion { applicability, .. }, ) => { let value = get_string!(); let value = Applicability::from_str(&value.value()).unwrap_or_else(|()| { diff --git a/compiler/rustc_middle/src/middle/mod.rs b/compiler/rustc_middle/src/middle/mod.rs index 9f71971ea08b..4587dcaddc48 100644 --- a/compiler/rustc_middle/src/middle/mod.rs +++ b/compiler/rustc_middle/src/middle/mod.rs @@ -25,7 +25,7 @@ pub mod lib_features { self.stability .to_sorted_stable_ord() .iter() - .map(|(&sym, &(stab, _))| (sym, stab)) + .map(|&(&sym, &(stab, _))| (sym, stab)) .collect() } } diff --git a/compiler/rustc_middle/src/mir/mono.rs b/compiler/rustc_middle/src/mir/mono.rs index 4a21b6ad2370..58d5c94d0332 100644 --- a/compiler/rustc_middle/src/mir/mono.rs +++ b/compiler/rustc_middle/src/mir/mono.rs @@ -243,7 +243,7 @@ impl<'tcx> MonoItem<'tcx> { /// Returns the item's `CrateNum` pub fn krate(&self) -> CrateNum { match self { - MonoItem::Fn(ref instance) => instance.def_id().krate, + MonoItem::Fn(instance) => instance.def_id().krate, MonoItem::Static(def_id) => def_id.krate, MonoItem::GlobalAsm(..) => LOCAL_CRATE, } diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 788306a28855..1d61cf48ad26 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -970,7 +970,7 @@ impl<'tcx> TerminatorKind<'tcx> { } FalseEdge { .. } => write!(fmt, "falseEdge"), FalseUnwind { .. } => write!(fmt, "falseUnwind"), - InlineAsm { template, ref operands, options, .. } => { + InlineAsm { template, operands, options, .. } => { write!(fmt, "asm!(\"{}\"", InlineAsmTemplatePiece::to_string(template))?; for op in operands { write!(fmt, ", ")?; diff --git a/compiler/rustc_middle/src/mir/terminator.rs b/compiler/rustc_middle/src/mir/terminator.rs index 49e0f619b1ec..fdfcb128778a 100644 --- a/compiler/rustc_middle/src/mir/terminator.rs +++ b/compiler/rustc_middle/src/mir/terminator.rs @@ -226,7 +226,7 @@ impl AssertKind { { use AssertKind::*; match self { - BoundsCheck { ref len, ref index } => write!( + BoundsCheck { len, index } => write!( f, "\"index out of bounds: the length is {{}} but the index is {{}}\", {len:?}, {index:?}" ), diff --git a/compiler/rustc_middle/src/mir/visit.rs b/compiler/rustc_middle/src/mir/visit.rs index 98e8f269c57b..4198b4a338c0 100644 --- a/compiler/rustc_middle/src/mir/visit.rs +++ b/compiler/rustc_middle/src/mir/visit.rs @@ -443,7 +443,7 @@ macro_rules! make_mir_visitor { location ) } - StatementKind::Intrinsic(box ref $($mutability)? intrinsic) => { + StatementKind::Intrinsic(box intrinsic) => { match intrinsic { NonDivergingIntrinsic::Assume(op) => self.visit_operand(op, location), NonDivergingIntrinsic::CopyNonOverlapping(CopyNonOverlapping { @@ -886,8 +886,8 @@ macro_rules! make_mir_visitor { self.visit_source_info(source_info); let location = Location::START; if let Some(box VarDebugInfoFragment { - ref $($mutability)? ty, - ref $($mutability)? projection + ty, + projection }) = composite { self.visit_ty($(& $mutability)? *ty, TyContext::Location(location)); for elem in projection { diff --git a/compiler/rustc_middle/src/thir.rs b/compiler/rustc_middle/src/thir.rs index 98cc00c367cf..c67ed356818a 100644 --- a/compiler/rustc_middle/src/thir.rs +++ b/compiler/rustc_middle/src/thir.rs @@ -678,8 +678,7 @@ impl<'tcx> Pat<'tcx> { subpatterns.iter().for_each(|field| field.pattern.walk_(it)) } Or { pats } => pats.iter().for_each(|p| p.walk_(it)), - Array { box ref prefix, ref slice, box ref suffix } - | Slice { box ref prefix, ref slice, box ref suffix } => { + Array { box prefix, slice, box suffix } | Slice { box prefix, slice, box suffix } => { prefix.iter().chain(slice.as_deref()).chain(suffix.iter()).for_each(|p| p.walk_(it)) } } diff --git a/compiler/rustc_middle/src/thir/visit.rs b/compiler/rustc_middle/src/thir/visit.rs index 13b8af55e518..afe24b55a837 100644 --- a/compiler/rustc_middle/src/thir/visit.rs +++ b/compiler/rustc_middle/src/thir/visit.rs @@ -194,7 +194,7 @@ pub fn walk_stmt<'thir, 'tcx: 'thir, V: Visitor<'thir, 'tcx>>( initializer, remainder_scope: _, init_scope: _, - ref pattern, + pattern, lint_level: _, else_block, span: _, diff --git a/compiler/rustc_middle/src/traits/mod.rs b/compiler/rustc_middle/src/traits/mod.rs index 53bc9eb7e466..51420400b102 100644 --- a/compiler/rustc_middle/src/traits/mod.rs +++ b/compiler/rustc_middle/src/traits/mod.rs @@ -786,7 +786,7 @@ impl DynCompatibilityViolation { pub fn error_msg(&self) -> Cow<'static, str> { match self { DynCompatibilityViolation::SizedSelf(_) => "it requires `Self: Sized`".into(), - DynCompatibilityViolation::SupertraitSelf(ref spans) => { + DynCompatibilityViolation::SupertraitSelf(spans) => { if spans.iter().any(|sp| *sp != DUMMY_SP) { "it uses `Self` as a type parameter".into() } else { diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index b2286c744020..db9e9fbc643b 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -447,23 +447,23 @@ impl<'tcx> TypeSuperVisitable> for Ty<'tcx> { } ty::Slice(typ) => typ.visit_with(visitor), ty::Adt(_, args) => args.visit_with(visitor), - ty::Dynamic(ref trait_ty, ref reg, _) => { + ty::Dynamic(trait_ty, reg, _) => { try_visit!(trait_ty.visit_with(visitor)); reg.visit_with(visitor) } ty::Tuple(ts) => ts.visit_with(visitor), ty::FnDef(_, args) => args.visit_with(visitor), - ty::FnPtr(ref sig_tys, _) => sig_tys.visit_with(visitor), - ty::UnsafeBinder(ref f) => f.visit_with(visitor), + ty::FnPtr(sig_tys, _) => sig_tys.visit_with(visitor), + ty::UnsafeBinder(f) => f.visit_with(visitor), ty::Ref(r, ty, _) => { try_visit!(r.visit_with(visitor)); ty.visit_with(visitor) } - ty::Coroutine(_did, ref args) => args.visit_with(visitor), - ty::CoroutineWitness(_did, ref args) => args.visit_with(visitor), - ty::Closure(_did, ref args) => args.visit_with(visitor), - ty::CoroutineClosure(_did, ref args) => args.visit_with(visitor), - ty::Alias(_, ref data) => data.visit_with(visitor), + ty::Coroutine(_did, args) => args.visit_with(visitor), + ty::CoroutineWitness(_did, args) => args.visit_with(visitor), + ty::Closure(_did, args) => args.visit_with(visitor), + ty::CoroutineClosure(_did, args) => args.visit_with(visitor), + ty::Alias(_, data) => data.visit_with(visitor), ty::Pat(ty, pat) => { try_visit!(ty.visit_with(visitor)); diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index 8a31b2960188..4a97b5d475fa 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -1121,7 +1121,7 @@ impl<'tcx> Ty<'tcx> { #[inline] pub fn is_param(self, index: u32) -> bool { match self.kind() { - ty::Param(ref data) => data.index == index, + ty::Param(data) => data.index == index, _ => false, } } diff --git a/compiler/rustc_mir_build/src/builder/block.rs b/compiler/rustc_mir_build/src/builder/block.rs index 93ee90011a58..7c76e02fcef6 100644 --- a/compiler/rustc_mir_build/src/builder/block.rs +++ b/compiler/rustc_mir_build/src/builder/block.rs @@ -244,7 +244,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> { StmtKind::Let { remainder_scope, init_scope, - ref pattern, + pattern, initializer, lint_level, else_block: None, diff --git a/compiler/rustc_mir_build/src/thir/cx/expr.rs b/compiler/rustc_mir_build/src/thir/cx/expr.rs index d0fca76fcf05..eb00b95f3c83 100644 --- a/compiler/rustc_mir_build/src/thir/cx/expr.rs +++ b/compiler/rustc_mir_build/src/thir/cx/expr.rs @@ -429,9 +429,7 @@ impl<'tcx> ThirBuildCx<'tcx> { let user_provided_types = self.typeck_results.user_provided_types(); let user_ty = user_provided_types.get(fun.hir_id).copied().map(|mut u_ty| { - if let ty::UserTypeKind::TypeOf(ref mut did, _) = - &mut u_ty.value.kind - { + if let ty::UserTypeKind::TypeOf(did, _) = &mut u_ty.value.kind { *did = adt_def.did(); } Box::new(u_ty) diff --git a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs index 18305db28c28..d60ae6484afb 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/check_match.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/check_match.rs @@ -1097,7 +1097,7 @@ fn find_fallback_pattern_typo<'tcx>( } } if let Some((i, &const_name)) = - accessible.iter().enumerate().find(|(_, &const_name)| const_name == name) + accessible.iter().enumerate().find(|&(_, &const_name)| const_name == name) { // The pattern name is an exact match, so the pattern needed to be imported. lint.wanted_constant = Some(WantedConstant { @@ -1115,7 +1115,7 @@ fn find_fallback_pattern_typo<'tcx>( const_path: name.to_string(), }); } else if let Some(i) = - imported.iter().enumerate().find(|(_, &const_name)| const_name == name).map(|(i, _)| i) + imported.iter().enumerate().find(|&(_, &const_name)| const_name == name).map(|(i, _)| i) { // The const with the exact name wasn't re-exported from an import in this // crate, we point at the import. diff --git a/compiler/rustc_mir_build/src/thir/util.rs b/compiler/rustc_mir_build/src/thir/util.rs index 4dff093afd0d..60a47a94e3a1 100644 --- a/compiler/rustc_mir_build/src/thir/util.rs +++ b/compiler/rustc_mir_build/src/thir/util.rs @@ -16,7 +16,7 @@ pub(crate) fn user_args_applied_to_ty_of_hir_id<'tcx>( let ty = typeck_results.node_type(hir_id); match ty.kind() { ty::Adt(adt_def, ..) => { - if let ty::UserTypeKind::TypeOf(ref mut did, _) = &mut user_ty.value.kind { + if let ty::UserTypeKind::TypeOf(did, _) = &mut user_ty.value.kind { *did = adt_def.did(); } Some(user_ty) diff --git a/compiler/rustc_mir_dataflow/src/un_derefer.rs b/compiler/rustc_mir_dataflow/src/un_derefer.rs index b803ecc575ee..bb15b8106a1e 100644 --- a/compiler/rustc_mir_dataflow/src/un_derefer.rs +++ b/compiler/rustc_mir_dataflow/src/un_derefer.rs @@ -91,7 +91,7 @@ impl SlicePlusOne<'_, T> { #[inline] fn advance(&mut self) { match self.slice { - [_, ref remainder @ ..] => { + [_, remainder @ ..] => { self.slice = remainder; } [] => self.last = None, diff --git a/compiler/rustc_mir_dataflow/src/value_analysis.rs b/compiler/rustc_mir_dataflow/src/value_analysis.rs index 104a2e8c0910..9cba07e15a43 100644 --- a/compiler/rustc_mir_dataflow/src/value_analysis.rs +++ b/compiler/rustc_mir_dataflow/src/value_analysis.rs @@ -125,7 +125,7 @@ impl State { pub fn all_bottom(&self) -> bool { match self { State::Unreachable => false, - State::Reachable(ref values) => + State::Reachable(values) => { #[allow(rustc::potential_query_instability)] values.map.values().all(V::is_bottom) @@ -349,7 +349,7 @@ impl JoinSemiLattice for State { *self = other.clone(); true } - (State::Reachable(this), State::Reachable(ref other)) => this.join(other), + (State::Reachable(this), State::Reachable(other)) => this.join(other), } } } diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs index 17084eca6e38..bd310b078975 100644 --- a/compiler/rustc_mir_transform/src/jump_threading.rs +++ b/compiler/rustc_mir_transform/src/jump_threading.rs @@ -467,7 +467,7 @@ impl<'a, 'tcx> TOFinder<'a, 'tcx> { state.insert_place_idx(rhs, lhs, &self.map); } // If we expect `lhs ?= A`, we have an opportunity if we assume `constant == A`. - Rvalue::Aggregate(box ref kind, ref operands) => { + Rvalue::Aggregate(box kind, operands) => { let agg_ty = lhs_place.ty(self.body, self.tcx).ty; let lhs = match kind { // Do not support unions. diff --git a/compiler/rustc_mir_transform/src/known_panics_lint.rs b/compiler/rustc_mir_transform/src/known_panics_lint.rs index 59de6ca84a71..f8db8de4e82c 100644 --- a/compiler/rustc_mir_transform/src/known_panics_lint.rs +++ b/compiler/rustc_mir_transform/src/known_panics_lint.rs @@ -509,7 +509,7 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> { // other overflow checks. AssertKind::Overflow(*bin_op, eval_to_int(op1), eval_to_int(op2)) } - AssertKind::BoundsCheck { ref len, ref index } => { + AssertKind::BoundsCheck { len, index } => { let len = eval_to_int(len); let index = eval_to_int(index); AssertKind::BoundsCheck { len, index } @@ -782,10 +782,10 @@ impl<'tcx> Visitor<'tcx> for ConstPropagator<'_, 'tcx> { fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { self.super_terminator(terminator, location); match &terminator.kind { - TerminatorKind::Assert { expected, ref msg, ref cond, .. } => { + TerminatorKind::Assert { expected, msg, cond, .. } => { self.check_assertion(*expected, msg, cond, location); } - TerminatorKind::SwitchInt { ref discr, ref targets } => { + TerminatorKind::SwitchInt { discr, targets } => { if let Some(ref value) = self.eval_operand(discr) && let Some(value_const) = self.use_ecx(|this| this.ecx.read_scalar(value)) && let Some(constant) = value_const.to_bits(value_const.size()).discard_err() diff --git a/compiler/rustc_mir_transform/src/mentioned_items.rs b/compiler/rustc_mir_transform/src/mentioned_items.rs index f5c57418467a..9fd8d81d64a2 100644 --- a/compiler/rustc_mir_transform/src/mentioned_items.rs +++ b/compiler/rustc_mir_transform/src/mentioned_items.rs @@ -51,7 +51,7 @@ impl<'tcx> Visitor<'tcx> for MentionedItemsVisitor<'_, 'tcx> { let ty = place.ty(self.body, self.tcx).ty; self.mentioned_items.push(Spanned { node: MentionedItem::Drop(ty), span: span() }); } - mir::TerminatorKind::InlineAsm { ref operands, .. } => { + mir::TerminatorKind::InlineAsm { operands, .. } => { for op in operands { match *op { mir::InlineAsmOperand::SymFn { ref value } => { diff --git a/compiler/rustc_mir_transform/src/simplify.rs b/compiler/rustc_mir_transform/src/simplify.rs index 67070f03dedb..84905f4a400f 100644 --- a/compiler/rustc_mir_transform/src/simplify.rs +++ b/compiler/rustc_mir_transform/src/simplify.rs @@ -568,9 +568,9 @@ fn remove_unused_definitions_helper(used_locals: &mut UsedLocals, body: &mut Bod } StatementKind::Assign(box (place, _)) => used_locals.is_used(place.local), - StatementKind::SetDiscriminant { ref place, .. } - | StatementKind::BackwardIncompatibleDropHint { ref place, reason: _ } - | StatementKind::Deinit(ref place) => used_locals.is_used(place.local), + StatementKind::SetDiscriminant { place, .. } + | StatementKind::BackwardIncompatibleDropHint { place, reason: _ } + | StatementKind::Deinit(place) => used_locals.is_used(place.local), StatementKind::Nop => false, _ => true, }; diff --git a/compiler/rustc_mir_transform/src/simplify_branches.rs b/compiler/rustc_mir_transform/src/simplify_branches.rs index 12c3503879fb..886f4d6e5090 100644 --- a/compiler/rustc_mir_transform/src/simplify_branches.rs +++ b/compiler/rustc_mir_transform/src/simplify_branches.rs @@ -24,7 +24,7 @@ impl<'tcx> crate::MirPass<'tcx> for SimplifyConstCondition { // Simplify `assume` of a known value: either a NOP or unreachable. if let StatementKind::Intrinsic(box ref intrinsic) = stmt.kind && let NonDivergingIntrinsic::Assume(discr) = intrinsic - && let Operand::Constant(ref c) = discr + && let Operand::Constant(c) = discr && let Some(constant) = c.const_.try_eval_bool(tcx, typing_env) { if constant { diff --git a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs index 21bc51ecca14..bd0082307313 100644 --- a/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs +++ b/compiler/rustc_mir_transform/src/simplify_comparison_integral.rs @@ -89,10 +89,10 @@ impl<'tcx> crate::MirPass<'tcx> for SimplifyComparisonIntegral { use Operand::*; match rhs { - Rvalue::BinaryOp(_, box (ref mut left @ Move(_), Constant(_))) => { + Rvalue::BinaryOp(_, box (left @ Move(_), Constant(_))) => { *left = Copy(opt.to_switch_on); } - Rvalue::BinaryOp(_, box (Constant(_), ref mut right @ Move(_))) => { + Rvalue::BinaryOp(_, box (Constant(_), right @ Move(_))) => { *right = Copy(opt.to_switch_on); } _ => (), diff --git a/compiler/rustc_monomorphize/src/partitioning.rs b/compiler/rustc_monomorphize/src/partitioning.rs index d826d03918e0..b1b6f10e0fe2 100644 --- a/compiler/rustc_monomorphize/src/partitioning.rs +++ b/compiler/rustc_monomorphize/src/partitioning.rs @@ -1269,7 +1269,7 @@ fn dump_mono_items_stats<'tcx>( output_directory: &Option, crate_name: Symbol, ) -> Result<(), Box> { - let output_directory = if let Some(ref directory) = output_directory { + let output_directory = if let Some(directory) = output_directory { fs::create_dir_all(directory)?; directory } else { diff --git a/compiler/rustc_passes/src/dead.rs b/compiler/rustc_passes/src/dead.rs index 7b4fecf2ed19..7a14a7a5db29 100644 --- a/compiler/rustc_passes/src/dead.rs +++ b/compiler/rustc_passes/src/dead.rs @@ -184,7 +184,7 @@ impl<'tcx> MarkSymbolVisitor<'tcx> { rhs: &'tcx hir::Expr<'tcx>, ) -> bool { match (&lhs.kind, &rhs.kind) { - (hir::ExprKind::Path(ref qpath_l), hir::ExprKind::Path(ref qpath_r)) => { + (hir::ExprKind::Path(qpath_l), hir::ExprKind::Path(qpath_r)) => { if let (Res::Local(id_l), Res::Local(id_r)) = ( typeck_results.qpath_res(qpath_l, lhs.hir_id), typeck_results.qpath_res(qpath_r, rhs.hir_id), diff --git a/compiler/rustc_passes/src/stability.rs b/compiler/rustc_passes/src/stability.rs index 4124e8a4dd1f..d92edf959aff 100644 --- a/compiler/rustc_passes/src/stability.rs +++ b/compiler/rustc_passes/src/stability.rs @@ -780,11 +780,7 @@ impl<'tcx> Visitor<'tcx> for Checker<'tcx> { // individually as it's possible to have a stable trait with unstable // items. hir::ItemKind::Impl(hir::Impl { - of_trait: Some(ref t), - self_ty, - items, - constness, - .. + of_trait: Some(t), self_ty, items, constness, .. }) => { let features = self.tcx.features(); if features.staged_api() { diff --git a/compiler/rustc_resolve/src/imports.rs b/compiler/rustc_resolve/src/imports.rs index 46e52e1f131b..6b8a7493cd42 100644 --- a/compiler/rustc_resolve/src/imports.rs +++ b/compiler/rustc_resolve/src/imports.rs @@ -98,13 +98,13 @@ impl<'ra> std::fmt::Debug for ImportKind<'ra> { use ImportKind::*; match self { Single { - ref source, - ref target, - ref source_bindings, - ref target_bindings, - ref type_ns_only, - ref nested, - ref id, + source, + target, + source_bindings, + target_bindings, + type_ns_only, + nested, + id, } => f .debug_struct("Single") .field("source", source) @@ -122,13 +122,13 @@ impl<'ra> std::fmt::Debug for ImportKind<'ra> { .field("nested", nested) .field("id", id) .finish(), - Glob { ref is_prelude, ref max_vis, ref id } => f + Glob { is_prelude, max_vis, id } => f .debug_struct("Glob") .field("is_prelude", is_prelude) .field("max_vis", max_vis) .field("id", id) .finish(), - ExternCrate { ref source, ref target, ref id } => f + ExternCrate { source, target, id } => f .debug_struct("ExternCrate") .field("source", source) .field("target", target) diff --git a/compiler/rustc_resolve/src/late.rs b/compiler/rustc_resolve/src/late.rs index 03aeb8720ca6..ad9c3465f0cc 100644 --- a/compiler/rustc_resolve/src/late.rs +++ b/compiler/rustc_resolve/src/late.rs @@ -1191,7 +1191,7 @@ impl<'ra: 'ast, 'ast, 'tcx> Visitor<'ast> for LateResolutionVisitor<'_, 'ast, 'r debug!("visit_generic_arg({:?})", arg); let prev = replace(&mut self.diag_metadata.currently_processing_generic_args, true); match arg { - GenericArg::Type(ref ty) => { + GenericArg::Type(ty) => { // We parse const arguments as path types as we cannot distinguish them during // parsing. We try to resolve that ambiguity by attempting resolution the type // namespace first, and if that fails we try again in the value namespace. If @@ -1583,7 +1583,7 @@ impl<'a, 'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { this.visit_param_bound(bound, BoundKind::Bound); } - if let Some(ref ty) = default { + if let Some(ty) = default { this.ribs[TypeNS].push(forward_ty_ban_rib); this.ribs[ValueNS].push(forward_const_ban_rib); this.visit_ty(ty); @@ -1608,7 +1608,7 @@ impl<'a, 'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'a, 'ast, 'ra, 'tcx> { this.ribs[TypeNS].pop().unwrap(); this.ribs[ValueNS].pop().unwrap(); - if let Some(ref expr) = default { + if let Some(expr) = default { this.ribs[TypeNS].push(forward_ty_ban_rib); this.ribs[ValueNS].push(forward_const_ban_rib); this.resolve_anon_const( @@ -5044,16 +5044,16 @@ impl ItemInfoCollector<'_, '_, '_> { impl<'ast> Visitor<'ast> for ItemInfoCollector<'_, '_, '_> { fn visit_item(&mut self, item: &'ast Item) { match &item.kind { - ItemKind::TyAlias(box TyAlias { ref generics, .. }) - | ItemKind::Const(box ConstItem { ref generics, .. }) - | ItemKind::Fn(box Fn { ref generics, .. }) - | ItemKind::Enum(_, ref generics) - | ItemKind::Struct(_, ref generics) - | ItemKind::Union(_, ref generics) - | ItemKind::Impl(box Impl { ref generics, .. }) - | ItemKind::Trait(box Trait { ref generics, .. }) - | ItemKind::TraitAlias(ref generics, _) => { - if let ItemKind::Fn(box Fn { ref sig, .. }) = &item.kind { + ItemKind::TyAlias(box TyAlias { generics, .. }) + | ItemKind::Const(box ConstItem { generics, .. }) + | ItemKind::Fn(box Fn { generics, .. }) + | ItemKind::Enum(_, generics) + | ItemKind::Struct(_, generics) + | ItemKind::Union(_, generics) + | ItemKind::Impl(box Impl { generics, .. }) + | ItemKind::Trait(box Trait { generics, .. }) + | ItemKind::TraitAlias(generics, _) => { + if let ItemKind::Fn(box Fn { sig, .. }) = &item.kind { self.collect_fn_info(sig, item.id, &item.attrs); } @@ -5086,7 +5086,7 @@ impl<'ast> Visitor<'ast> for ItemInfoCollector<'_, '_, '_> { } fn visit_assoc_item(&mut self, item: &'ast AssocItem, ctxt: AssocCtxt) { - if let AssocItemKind::Fn(box Fn { ref sig, .. }) = &item.kind { + if let AssocItemKind::Fn(box Fn { sig, .. }) = &item.kind { self.collect_fn_info(sig, item.id, &item.attrs); } visit::walk_assoc_item(self, item, ctxt); diff --git a/compiler/rustc_resolve/src/late/diagnostics.rs b/compiler/rustc_resolve/src/late/diagnostics.rs index b37c684a0556..fa9c42e35933 100644 --- a/compiler/rustc_resolve/src/late/diagnostics.rs +++ b/compiler/rustc_resolve/src/late/diagnostics.rs @@ -516,7 +516,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { let Some(params) = &segment.args else { continue; }; - let ast::GenericArgs::AngleBracketed(ref params) = params.deref() else { + let ast::GenericArgs::AngleBracketed(params) = params.deref() else { continue; }; for param in ¶ms.args { @@ -1668,7 +1668,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { ); } if let PathSource::Expr(Some(Expr { - kind: ExprKind::Call(path, ref args), + kind: ExprKind::Call(path, args), span: call_span, .. })) = source @@ -1802,7 +1802,7 @@ impl<'ast, 'ra: 'ast, 'tcx> LateResolutionVisitor<'_, 'ast, 'ra, 'tcx> { } // e.g. `let _ = Enum::TupleVariant(field1, field2);` PathSource::Expr(Some(Expr { - kind: ExprKind::Call(path, ref args), + kind: ExprKind::Call(path, args), span: call_span, .. })) => { diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index c4d45ee02eea..8e5ff1d3bc48 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -1019,8 +1019,7 @@ pub fn build_session( let self_profiler = if let SwitchWithOptPath::Enabled(ref d) = sopts.unstable_opts.self_profile { - let directory = - if let Some(ref directory) = d { directory } else { std::path::Path::new(".") }; + let directory = if let Some(directory) = d { directory } else { std::path::Path::new(".") }; let profiler = SelfProfiler::new( directory, diff --git a/compiler/rustc_span/src/lib.rs b/compiler/rustc_span/src/lib.rs index 695edc956cdb..c09669d959c9 100644 --- a/compiler/rustc_span/src/lib.rs +++ b/compiler/rustc_span/src/lib.rs @@ -404,7 +404,7 @@ impl fmt::Display for FileNameDisplay<'_> { impl<'a> FileNameDisplay<'a> { pub fn to_string_lossy(&self) -> Cow<'a, str> { match self.inner { - FileName::Real(ref inner) => inner.to_string_lossy(self.display_pref), + FileName::Real(inner) => inner.to_string_lossy(self.display_pref), _ => Cow::from(self.to_string()), } } @@ -1442,7 +1442,7 @@ pub enum ExternalSourceKind { impl ExternalSource { pub fn get_source(&self) -> Option<&str> { match self { - ExternalSource::Foreign { kind: ExternalSourceKind::Present(ref src), .. } => Some(src), + ExternalSource::Foreign { kind: ExternalSourceKind::Present(src), .. } => Some(src), _ => None, } } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs index a87a449daf1c..a7e68e6419d8 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs @@ -237,7 +237,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { Some(ConsiderAddingAwait::FutureSugg { span: then_span.shrink_to_hi() }) } ObligationCauseCode::MatchExpressionArm(box MatchExpressionArmCause { - ref prior_non_diverging_arms, + prior_non_diverging_arms, .. }) => Some({ ConsiderAddingAwait::FutureSuggMultiple { diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs index a8ee4d61e65e..a666911dc5d0 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/fulfillment_errors.rs @@ -2357,7 +2357,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { obligated_types: &mut Vec>, cause_code: &ObligationCauseCode<'tcx>, ) -> bool { - if let ObligationCauseCode::BuiltinDerived(ref data) = cause_code { + if let ObligationCauseCode::BuiltinDerived(data) = cause_code { let parent_trait_ref = self.resolve_vars_if_possible(data.parent_trait_pred); let self_ty = parent_trait_ref.skip_binder().self_ty(); if obligated_types.iter().any(|ot| ot == &self_ty) { diff --git a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs index 6eeb47a21f8d..efd2d7cdb6aa 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs @@ -974,7 +974,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { hir::ExprKind::MethodCall( hir::PathSegment { ident, .. }, _receiver, - &[], + [], call_span, ), hir_id, diff --git a/compiler/rustc_trait_selection/src/errors.rs b/compiler/rustc_trait_selection/src/errors.rs index e8d30d3ee799..96eaf225159d 100644 --- a/compiler/rustc_trait_selection/src/errors.rs +++ b/compiler/rustc_trait_selection/src/errors.rs @@ -509,21 +509,18 @@ impl Subdiagnostic for AddLifetimeParamsSuggestion<'_> { let node = self.tcx.hir_node_by_def_id(anon_reg.scope); let is_impl = matches!(&node, hir::Node::ImplItem(_)); let (generics, parent_generics) = match node { - hir::Node::Item(&hir::Item { - kind: hir::ItemKind::Fn { ref generics, .. }, - .. - }) - | hir::Node::TraitItem(&hir::TraitItem { ref generics, .. }) - | hir::Node::ImplItem(&hir::ImplItem { ref generics, .. }) => ( + hir::Node::Item(hir::Item { kind: hir::ItemKind::Fn { generics, .. }, .. }) + | hir::Node::TraitItem(hir::TraitItem { generics, .. }) + | hir::Node::ImplItem(hir::ImplItem { generics, .. }) => ( generics, match self.tcx.parent_hir_node(self.tcx.local_def_id_to_hir_id(anon_reg.scope)) { hir::Node::Item(hir::Item { - kind: hir::ItemKind::Trait(_, _, ref generics, ..), + kind: hir::ItemKind::Trait(_, _, generics, ..), .. }) | hir::Node::Item(hir::Item { - kind: hir::ItemKind::Impl(hir::Impl { ref generics, .. }), + kind: hir::ItemKind::Impl(hir::Impl { generics, .. }), .. }) => Some(generics), _ => None, diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs index c238e708ab8f..51d560d4c43d 100644 --- a/compiler/rustc_trait_selection/src/solve/fulfill.rs +++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs @@ -67,7 +67,9 @@ impl<'tcx> ObligationStorage<'tcx> { obligations } - fn unstalled_for_select(&mut self) -> impl Iterator> { + fn unstalled_for_select( + &mut self, + ) -> impl Iterator> + use<'tcx> { mem::take(&mut self.pending).into_iter() } diff --git a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs index efe2386d014b..740f44ebcade 100644 --- a/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs +++ b/compiler/rustc_trait_selection/src/traits/dyn_compatibility.rs @@ -698,11 +698,11 @@ impl<'tcx> TypeVisitor> for IllegalSelfTypeVisitor<'tcx> { ControlFlow::Continue(()) } } - ty::Alias(ty::Projection, ref data) if self.tcx.is_impl_trait_in_trait(data.def_id) => { + ty::Alias(ty::Projection, data) if self.tcx.is_impl_trait_in_trait(data.def_id) => { // We'll deny these later in their own pass ControlFlow::Continue(()) } - ty::Alias(ty::Projection, ref data) => { + ty::Alias(ty::Projection, data) => { match self.allow_self_projections { AllowSelfProjections::Yes => { // This is a projected type `::X`. From fd451dc057d7332e2e40f0625e865ea5e757d000 Mon Sep 17 00:00:00 2001 From: Ben Kimock Date: Fri, 21 Feb 2025 21:36:58 -0500 Subject: [PATCH 234/255] Use StableHasher + Hash64 for dep_tracking_hash --- Cargo.lock | 1 + compiler/rustc_incremental/Cargo.toml | 1 + .../rustc_incremental/src/persist/load.rs | 3 ++- compiler/rustc_session/src/config.rs | 21 ++++++++++--------- compiler/rustc_session/src/options.rs | 10 ++++----- 5 files changed, 20 insertions(+), 16 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 6bc88fb7a6dc..4401489813a4 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -3779,6 +3779,7 @@ dependencies = [ "rustc_fluent_macro", "rustc_fs_util", "rustc_graphviz", + "rustc_hashes", "rustc_hir", "rustc_macros", "rustc_middle", diff --git a/compiler/rustc_incremental/Cargo.toml b/compiler/rustc_incremental/Cargo.toml index 46a63b02e846..83d163da4839 100644 --- a/compiler/rustc_incremental/Cargo.toml +++ b/compiler/rustc_incremental/Cargo.toml @@ -12,6 +12,7 @@ rustc_errors = { path = "../rustc_errors" } rustc_fluent_macro = { path = "../rustc_fluent_macro" } rustc_fs_util = { path = "../rustc_fs_util" } rustc_graphviz = { path = "../rustc_graphviz" } +rustc_hashes = { path = "../rustc_hashes" } rustc_hir = { path = "../rustc_hir" } rustc_macros = { path = "../rustc_macros" } rustc_middle = { path = "../rustc_middle" } diff --git a/compiler/rustc_incremental/src/persist/load.rs b/compiler/rustc_incremental/src/persist/load.rs index 7977bcc68911..50e47533ab6c 100644 --- a/compiler/rustc_incremental/src/persist/load.rs +++ b/compiler/rustc_incremental/src/persist/load.rs @@ -5,6 +5,7 @@ use std::sync::Arc; use rustc_data_structures::memmap::Mmap; use rustc_data_structures::unord::UnordMap; +use rustc_hashes::Hash64; use rustc_middle::dep_graph::{DepGraph, DepsType, SerializedDepGraph, WorkProductMap}; use rustc_middle::query::on_disk_cache::OnDiskCache; use rustc_serialize::Decodable; @@ -154,7 +155,7 @@ fn load_dep_graph(sess: &Session) -> LoadResult<(Arc, WorkPr sess.dcx().emit_warn(errors::CorruptFile { path: &path }); return LoadResult::DataOutOfDate; }; - let prev_commandline_args_hash = u64::decode(&mut decoder); + let prev_commandline_args_hash = Hash64::decode(&mut decoder); if prev_commandline_args_hash != expected_hash { if sess.opts.unstable_opts.incremental_info { diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 85ef69ea2b74..6f8da1785f43 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -2928,12 +2928,13 @@ pub enum WasiExecModel { /// how the hash should be calculated when adding a new command-line argument. pub(crate) mod dep_tracking { use std::collections::BTreeMap; - use std::hash::{DefaultHasher, Hash}; + use std::hash::Hash; use std::num::NonZero; use std::path::PathBuf; use rustc_abi::Align; use rustc_data_structures::fx::FxIndexMap; + use rustc_data_structures::stable_hasher::StableHasher; use rustc_errors::LanguageIdentifier; use rustc_feature::UnstableFeatures; use rustc_hashes::Hash64; @@ -2960,7 +2961,7 @@ pub(crate) mod dep_tracking { pub(crate) trait DepTrackingHash { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ); @@ -2969,7 +2970,7 @@ pub(crate) mod dep_tracking { macro_rules! impl_dep_tracking_hash_via_hash { ($($t:ty),+ $(,)?) => {$( impl DepTrackingHash for $t { - fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType, _for_crate_hash: bool) { + fn hash(&self, hasher: &mut StableHasher, _: ErrorOutputType, _for_crate_hash: bool) { Hash::hash(self, hasher); } } @@ -2979,7 +2980,7 @@ pub(crate) mod dep_tracking { impl DepTrackingHash for Option { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3064,7 +3065,7 @@ pub(crate) mod dep_tracking { { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3083,7 +3084,7 @@ pub(crate) mod dep_tracking { { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3099,7 +3100,7 @@ pub(crate) mod dep_tracking { impl DepTrackingHash for Vec { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3114,7 +3115,7 @@ pub(crate) mod dep_tracking { impl DepTrackingHash for FxIndexMap { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3129,7 +3130,7 @@ pub(crate) mod dep_tracking { impl DepTrackingHash for OutputTypes { fn hash( &self, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { @@ -3146,7 +3147,7 @@ pub(crate) mod dep_tracking { // This is a stable hash because BTreeMap is a sorted container pub(crate) fn stable_hash( sub_hashes: BTreeMap<&'static str, &dyn DepTrackingHash>, - hasher: &mut DefaultHasher, + hasher: &mut StableHasher, error_format: ErrorOutputType, for_crate_hash: bool, ) { diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 351dad3f3e42..ecd6ced622d6 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1,5 +1,4 @@ use std::collections::BTreeMap; -use std::hash::{DefaultHasher, Hasher}; use std::num::{IntErrorKind, NonZero}; use std::path::PathBuf; use std::str; @@ -7,6 +6,7 @@ use std::str; use rustc_abi::Align; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::profiling::TimePassesFormat; +use rustc_data_structures::stable_hasher::StableHasher; use rustc_errors::{ColorConfig, LanguageIdentifier, TerminalUrl}; use rustc_feature::UnstableFeatures; use rustc_hashes::Hash64; @@ -251,7 +251,7 @@ macro_rules! top_level_options { } impl Options { - pub fn dep_tracking_hash(&self, for_crate_hash: bool) -> u64 { + pub fn dep_tracking_hash(&self, for_crate_hash: bool) -> Hash64 { let mut sub_hashes = BTreeMap::new(); $({ hash_opt!($opt, @@ -260,7 +260,7 @@ macro_rules! top_level_options { for_crate_hash, [$dep_tracking_marker]); })* - let mut hasher = DefaultHasher::new(); + let mut hasher = StableHasher::new(); dep_tracking::stable_hash(sub_hashes, &mut hasher, self.error_format, @@ -545,7 +545,7 @@ macro_rules! options { build_options(early_dcx, matches, target_modifiers, $stat, $prefix, $outputname) } - fn dep_tracking_hash(&self, for_crate_hash: bool, error_format: ErrorOutputType) -> u64 { + fn dep_tracking_hash(&self, for_crate_hash: bool, error_format: ErrorOutputType) -> Hash64 { let mut sub_hashes = BTreeMap::new(); $({ hash_opt!($opt, @@ -554,7 +554,7 @@ macro_rules! options { for_crate_hash, [$dep_tracking_marker]); })* - let mut hasher = DefaultHasher::new(); + let mut hasher = StableHasher::new(); dep_tracking::stable_hash(sub_hashes, &mut hasher, error_format, From fe90883ef7124f5b9dae69374f9bfb37c9aebb8f Mon Sep 17 00:00:00 2001 From: Manuel Drehwald Date: Fri, 21 Feb 2025 21:45:29 -0500 Subject: [PATCH 235/255] fix build regressions --- compiler/rustc_builtin_macros/src/autodiff.rs | 1 + src/bootstrap/src/core/build_steps/compile.rs | 24 +++++++++++++------ 2 files changed, 18 insertions(+), 7 deletions(-) diff --git a/compiler/rustc_builtin_macros/src/autodiff.rs b/compiler/rustc_builtin_macros/src/autodiff.rs index 24c54edd705a..8d7ac6de8010 100644 --- a/compiler/rustc_builtin_macros/src/autodiff.rs +++ b/compiler/rustc_builtin_macros/src/autodiff.rs @@ -242,6 +242,7 @@ mod llvm_enzyme { defaultness: ast::Defaultness::Final, sig: d_sig, generics: Generics::default(), + contract: None, body: Some(d_body), }); let mut rustc_ad_attr = diff --git a/src/bootstrap/src/core/build_steps/compile.rs b/src/bootstrap/src/core/build_steps/compile.rs index aa08dd7e4248..8e9b5856096a 100644 --- a/src/bootstrap/src/core/build_steps/compile.rs +++ b/src/bootstrap/src/core/build_steps/compile.rs @@ -1174,9 +1174,15 @@ pub fn rustc_cargo( // We want to link against registerEnzyme and in the future we want to use additional // functionality from Enzyme core. For that we need to link against Enzyme. if builder.config.llvm_enzyme { - let llvm_config = builder.llvm_config(builder.config.build).unwrap(); - let llvm_version_major = llvm::get_llvm_version_major(builder, &llvm_config); - cargo.rustflag("-l").rustflag(&format!("Enzyme-{llvm_version_major}")); + let arch = builder.build.build; + let enzyme_dir = builder.build.out.join(arch).join("enzyme").join("lib"); + cargo.rustflag("-L").rustflag(enzyme_dir.to_str().expect("Invalid path")); + + if !builder.config.dry_run() { + let llvm_config = builder.llvm_config(builder.config.build).unwrap(); + let llvm_version_major = llvm::get_llvm_version_major(builder, &llvm_config); + cargo.rustflag("-l").rustflag(&format!("Enzyme-{llvm_version_major}")); + } } // Building with protected visibility reduces the number of dynamic relocations needed, giving @@ -2028,16 +2034,20 @@ impl Step for Assemble { let mut build_compiler = builder.compiler(target_compiler.stage - 1, builder.config.build); // Build enzyme - if builder.config.llvm_enzyme { + if builder.config.llvm_enzyme && !builder.config.dry_run() { debug!("`llvm_enzyme` requested"); let enzyme_install = builder.ensure(llvm::Enzyme { target: build_compiler.host }); + let llvm_config = builder.llvm_config(builder.config.build).unwrap(); + let llvm_version_major = llvm::get_llvm_version_major(builder, &llvm_config); let lib_ext = std::env::consts::DLL_EXTENSION; - let src_lib = enzyme_install.join("build/Enzyme/libEnzyme-19").with_extension(lib_ext); + let libenzyme = format!("libEnzyme-{llvm_version_major}"); + let src_lib = + enzyme_install.join("build/Enzyme").join(&libenzyme).with_extension(lib_ext); let libdir = builder.sysroot_target_libdir(build_compiler, build_compiler.host); let target_libdir = builder.sysroot_target_libdir(target_compiler, target_compiler.host); - let dst_lib = libdir.join("libEnzyme-19").with_extension(lib_ext); - let target_dst_lib = target_libdir.join("libEnzyme-19").with_extension(lib_ext); + let dst_lib = libdir.join(&libenzyme).with_extension(lib_ext); + let target_dst_lib = target_libdir.join(&libenzyme).with_extension(lib_ext); builder.copy_link(&src_lib, &dst_lib); builder.copy_link(&src_lib, &target_dst_lib); } From f4e2218b131b82097c720d28c1c2ea10922b0d47 Mon Sep 17 00:00:00 2001 From: Manuel Drehwald Date: Fri, 21 Feb 2025 21:47:48 -0500 Subject: [PATCH 236/255] clean up autodiff code/comments --- compiler/rustc_ast/src/expand/autodiff_attrs.rs | 1 - compiler/rustc_codegen_llvm/src/back/write.rs | 15 +++++---------- .../src/partitioning/autodiff.rs | 2 +- 3 files changed, 6 insertions(+), 12 deletions(-) diff --git a/compiler/rustc_ast/src/expand/autodiff_attrs.rs b/compiler/rustc_ast/src/expand/autodiff_attrs.rs index 70222f4acabe..c8ec185ee5e2 100644 --- a/compiler/rustc_ast/src/expand/autodiff_attrs.rs +++ b/compiler/rustc_ast/src/expand/autodiff_attrs.rs @@ -17,7 +17,6 @@ use crate::{Ty, TyKind}; /// functions. The proper solution is to recognize and resolve this DAG of autodiff invocations, /// as it's already done in the C++ and Julia frontend of Enzyme. /// -/// (FIXME) remove *First variants. /// Documentation for using [reverse](https://enzyme.mit.edu/rust/rev.html) and /// [forward](https://enzyme.mit.edu/rust/fwd.html) mode is available online. #[derive(Clone, Copy, Eq, PartialEq, Encodable, Decodable, Debug, HashStable_Generic)] diff --git a/compiler/rustc_codegen_llvm/src/back/write.rs b/compiler/rustc_codegen_llvm/src/back/write.rs index 9fa10e960680..b67890c04657 100644 --- a/compiler/rustc_codegen_llvm/src/back/write.rs +++ b/compiler/rustc_codegen_llvm/src/back/write.rs @@ -564,19 +564,16 @@ pub(crate) unsafe fn llvm_optimize( // FIXME(ZuseZ4): In a future update we could figure out how to only optimize individual functions getting // differentiated. + let consider_ad = cfg!(llvm_enzyme) && config.autodiff.contains(&config::AutoDiff::Enable); + let run_enzyme = autodiff_stage == AutodiffStage::DuringAD; let unroll_loops; let vectorize_slp; let vectorize_loop; - let run_enzyme = cfg!(llvm_enzyme) && autodiff_stage == AutodiffStage::DuringAD; // When we build rustc with enzyme/autodiff support, we want to postpone size-increasing // optimizations until after differentiation. Our pipeline is thus: (opt + enzyme), (full opt). // We therefore have two calls to llvm_optimize, if autodiff is used. - // - // FIXME(ZuseZ4): Before shipping on nightly, - // we should make this more granular, or at least check that the user has at least one autodiff - // call in their code, to justify altering the compilation pipeline. - if cfg!(llvm_enzyme) && autodiff_stage != AutodiffStage::PostAD { + if consider_ad && autodiff_stage != AutodiffStage::PostAD { unroll_loops = false; vectorize_slp = false; vectorize_loop = false; @@ -706,10 +703,8 @@ pub(crate) unsafe fn optimize( // If we know that we will later run AD, then we disable vectorization and loop unrolling. // Otherwise we pretend AD is already done and run the normal opt pipeline (=PostAD). - // FIXME(ZuseZ4): Make this more granular, only set PreAD if we actually have autodiff - // usages, not just if we build rustc with autodiff support. - let autodiff_stage = - if cfg!(llvm_enzyme) { AutodiffStage::PreAD } else { AutodiffStage::PostAD }; + let consider_ad = cfg!(llvm_enzyme) && config.autodiff.contains(&config::AutoDiff::Enable); + let autodiff_stage = if consider_ad { AutodiffStage::PreAD } else { AutodiffStage::PostAD }; return unsafe { llvm_optimize(cgcx, dcx, module, config, opt_level, opt_stage, autodiff_stage) }; diff --git a/compiler/rustc_monomorphize/src/partitioning/autodiff.rs b/compiler/rustc_monomorphize/src/partitioning/autodiff.rs index bce31bf0748e..0c855508434e 100644 --- a/compiler/rustc_monomorphize/src/partitioning/autodiff.rs +++ b/compiler/rustc_monomorphize/src/partitioning/autodiff.rs @@ -66,7 +66,7 @@ pub(crate) fn find_autodiff_source_functions<'tcx>( let mut autodiff_items: Vec = vec![]; for (item, instance) in autodiff_mono_items { let target_id = instance.def_id(); - let cg_fn_attr = tcx.codegen_fn_attrs(target_id).autodiff_item.clone(); + let cg_fn_attr = &tcx.codegen_fn_attrs(target_id).autodiff_item; let Some(target_attrs) = cg_fn_attr else { continue; }; From 161a4bf6ff3d0b10cd7e5b0984e908e4927d0890 Mon Sep 17 00:00:00 2001 From: Manuel Drehwald Date: Fri, 21 Feb 2025 21:49:46 -0500 Subject: [PATCH 237/255] update enzyme submodule and users --- compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp | 9 ++++++--- src/bootstrap/src/core/build_steps/llvm.rs | 7 ++----- src/tools/enzyme | 2 +- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp index 7eb11f9e6087..9ce4abdb432e 100644 --- a/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp +++ b/compiler/rustc_llvm/llvm-wrapper/PassWrapper.cpp @@ -692,9 +692,12 @@ struct LLVMRustSanitizerOptions { bool SanitizeKernelAddressRecover; }; -// This symbol won't be available or used when Enzyme is not enabled +// This symbol won't be available or used when Enzyme is not enabled. +// Always set AugmentPassBuilder to true, since it registers optimizations which +// will improve the performance for Enzyme. #ifdef ENZYME -extern "C" void registerEnzyme(llvm::PassBuilder &PB); +extern "C" void registerEnzymeAndPassPipeline(llvm::PassBuilder &PB, + /* augmentPassBuilder */ bool); #endif extern "C" LLVMRustResult LLVMRustOptimize( @@ -1023,7 +1026,7 @@ extern "C" LLVMRustResult LLVMRustOptimize( // now load "-enzyme" pass: #ifdef ENZYME if (RunEnzyme) { - registerEnzyme(PB); + registerEnzymeAndPassPipeline(PB, true); if (auto Err = PB.parsePassPipeline(MPM, "enzyme")) { std::string ErrMsg = toString(std::move(Err)); LLVMRustSetLastError(ErrMsg.c_str()); diff --git a/src/bootstrap/src/core/build_steps/llvm.rs b/src/bootstrap/src/core/build_steps/llvm.rs index 3025f9556607..40d701f22c13 100644 --- a/src/bootstrap/src/core/build_steps/llvm.rs +++ b/src/bootstrap/src/core/build_steps/llvm.rs @@ -996,13 +996,11 @@ impl Step for Enzyme { .config .update_submodule(Path::new("src").join("tools").join("enzyme").to_str().unwrap()); let mut cfg = cmake::Config::new(builder.src.join("src/tools/enzyme/enzyme/")); - // FIXME(ZuseZ4): Find a nicer way to use Enzyme Debug builds - //cfg.profile("Debug"); - //cfg.define("CMAKE_BUILD_TYPE", "Debug"); configure_cmake(builder, target, &mut cfg, true, LdFlags::default(), &[]); // Re-use the same flags as llvm to control the level of debug information - // generated for lld. + // generated by Enzyme. + // FIXME(ZuseZ4): Find a nicer way to use Enzyme Debug builds. let profile = match (builder.config.llvm_optimize, builder.config.llvm_release_debuginfo) { (false, _) => "Debug", (true, false) => "Release", @@ -1015,7 +1013,6 @@ impl Step for Enzyme { .env("LLVM_CONFIG_REAL", &llvm_config) .define("LLVM_ENABLE_ASSERTIONS", "ON") .define("ENZYME_EXTERNAL_SHARED_LIB", "ON") - .define("ENZYME_RUNPASS", "ON") .define("LLVM_DIR", builder.llvm_out(target)); cfg.build(); diff --git a/src/tools/enzyme b/src/tools/enzyme index 7f3b207c4413..5004a8f6f5d8 160000 --- a/src/tools/enzyme +++ b/src/tools/enzyme @@ -1 +1 @@ -Subproject commit 7f3b207c4413c9d715fd54b36b8a8fd3179e0b67 +Subproject commit 5004a8f6f5d8468b64fae457afb7d96e1784c783 From e2d250c3f63d14e068e92ab3048817af6e1770c2 Mon Sep 17 00:00:00 2001 From: Manuel Drehwald Date: Fri, 21 Feb 2025 21:51:20 -0500 Subject: [PATCH 238/255] update autodiff flags --- compiler/rustc_codegen_llvm/messages.ftl | 1 + compiler/rustc_codegen_llvm/src/back/lto.rs | 87 ++++++++++++----- .../src/builder/autodiff.rs | 13 ++- compiler/rustc_codegen_llvm/src/errors.rs | 5 +- .../rustc_codegen_llvm/src/llvm/enzyme_ffi.rs | 94 +++++++++++++++++++ compiler/rustc_codegen_ssa/src/back/write.rs | 3 +- compiler/rustc_interface/src/tests.rs | 2 +- compiler/rustc_session/src/config.rs | 25 ++--- compiler/rustc_session/src/options.rs | 39 ++++---- .../src/compiler-flags/autodiff.md | 9 +- tests/codegen/autodiff.rs | 2 +- 11 files changed, 204 insertions(+), 76 deletions(-) diff --git a/compiler/rustc_codegen_llvm/messages.ftl b/compiler/rustc_codegen_llvm/messages.ftl index 399d7ffea8e6..17f2e7ca9f70 100644 --- a/compiler/rustc_codegen_llvm/messages.ftl +++ b/compiler/rustc_codegen_llvm/messages.ftl @@ -1,3 +1,4 @@ +codegen_llvm_autodiff_without_enable = using the autodiff feature requires -Z autodiff=Enable codegen_llvm_autodiff_without_lto = using the autodiff feature requires using fat-lto codegen_llvm_copy_bitcode = failed to copy bitcode to object file: {$err} diff --git a/compiler/rustc_codegen_llvm/src/back/lto.rs b/compiler/rustc_codegen_llvm/src/back/lto.rs index 3e25b94961b0..99906ea7bce3 100644 --- a/compiler/rustc_codegen_llvm/src/back/lto.rs +++ b/compiler/rustc_codegen_llvm/src/back/lto.rs @@ -586,6 +586,42 @@ fn thin_lto( } } +fn enable_autodiff_settings(ad: &[config::AutoDiff], module: &mut ModuleCodegen) { + for &val in ad { + match val { + config::AutoDiff::PrintModBefore => { + unsafe { llvm::LLVMDumpModule(module.module_llvm.llmod()) }; + } + config::AutoDiff::PrintPerf => { + llvm::set_print_perf(true); + } + config::AutoDiff::PrintAA => { + llvm::set_print_activity(true); + } + config::AutoDiff::PrintTA => { + llvm::set_print_type(true); + } + config::AutoDiff::Inline => { + llvm::set_inline(true); + } + config::AutoDiff::LooseTypes => { + llvm::set_loose_types(false); + } + config::AutoDiff::PrintSteps => { + llvm::set_print(true); + } + // We handle this below + config::AutoDiff::PrintModAfter => {} + // This is required and already checked + config::AutoDiff::Enable => {} + } + } + // This helps with handling enums for now. + llvm::set_strict_aliasing(false); + // FIXME(ZuseZ4): Test this, since it was added a long time ago. + llvm::set_rust_rules(true); +} + pub(crate) fn run_pass_manager( cgcx: &CodegenContext, dcx: DiagCtxtHandle<'_>, @@ -604,34 +640,37 @@ pub(crate) fn run_pass_manager( let opt_stage = if thin { llvm::OptStage::ThinLTO } else { llvm::OptStage::FatLTO }; let opt_level = config.opt_level.unwrap_or(config::OptLevel::No); - // If this rustc version was build with enzyme/autodiff enabled, and if users applied the - // `#[autodiff]` macro at least once, then we will later call llvm_optimize a second time. - debug!("running llvm pm opt pipeline"); - unsafe { - write::llvm_optimize( - cgcx, - dcx, - module, - config, - opt_level, - opt_stage, - write::AutodiffStage::DuringAD, - )?; + // The PostAD behavior is the same that we would have if no autodiff was used. + // It will run the default optimization pipeline. If AD is enabled we select + // the DuringAD stage, which will disable vectorization and loop unrolling, and + // schedule two autodiff optimization + differentiation passes. + // We then run the llvm_optimize function a second time, to optimize the code which we generated + // in the enzyme differentiation pass. + let enable_ad = config.autodiff.contains(&config::AutoDiff::Enable); + let stage = + if enable_ad { write::AutodiffStage::DuringAD } else { write::AutodiffStage::PostAD }; + + if enable_ad { + enable_autodiff_settings(&config.autodiff, module); } - // FIXME(ZuseZ4): Make this more granular - if cfg!(llvm_enzyme) && !thin { + + unsafe { + write::llvm_optimize(cgcx, dcx, module, config, opt_level, opt_stage, stage)?; + } + + if cfg!(llvm_enzyme) && enable_ad { + let opt_stage = llvm::OptStage::FatLTO; + let stage = write::AutodiffStage::PostAD; unsafe { - write::llvm_optimize( - cgcx, - dcx, - module, - config, - opt_level, - llvm::OptStage::FatLTO, - write::AutodiffStage::PostAD, - )?; + write::llvm_optimize(cgcx, dcx, module, config, opt_level, opt_stage, stage)?; + } + + // This is the final IR, so people should be able to inspect the optimized autodiff output. + if config.autodiff.contains(&config::AutoDiff::PrintModAfter) { + unsafe { llvm::LLVMDumpModule(module.module_llvm.llmod()) }; } } + debug!("lto done"); Ok(()) } diff --git a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs index b2c1088e3fc0..2c7899975e3e 100644 --- a/compiler/rustc_codegen_llvm/src/builder/autodiff.rs +++ b/compiler/rustc_codegen_llvm/src/builder/autodiff.rs @@ -10,7 +10,7 @@ use crate::back::write::llvm_err; use crate::builder::SBuilder; use crate::context::SimpleCx; use crate::declare::declare_simple_fn; -use crate::errors::LlvmError; +use crate::errors::{AutoDiffWithoutEnable, LlvmError}; use crate::llvm::AttributePlace::Function; use crate::llvm::{Metadata, True}; use crate::value::Value; @@ -46,9 +46,6 @@ fn generate_enzyme_call<'ll>( let output = attrs.ret_activity; // We have to pick the name depending on whether we want forward or reverse mode autodiff. - // FIXME(ZuseZ4): The new pass based approach should not need the {Forward/Reverse}First method anymore, since - // it will handle higher-order derivatives correctly automatically (in theory). Currently - // higher-order derivatives fail, so we should debug that before adjusting this code. let mut ad_name: String = match attrs.mode { DiffMode::Forward => "__enzyme_fwddiff", DiffMode::Reverse => "__enzyme_autodiff", @@ -291,6 +288,14 @@ pub(crate) fn differentiate<'ll>( let diag_handler = cgcx.create_dcx(); let cx = SimpleCx { llmod: module.module_llvm.llmod(), llcx: module.module_llvm.llcx }; + // First of all, did the user try to use autodiff without using the -Zautodiff=Enable flag? + if !diff_items.is_empty() + && !cgcx.opts.unstable_opts.autodiff.contains(&rustc_session::config::AutoDiff::Enable) + { + let dcx = cgcx.create_dcx(); + return Err(dcx.handle().emit_almost_fatal(AutoDiffWithoutEnable)); + } + // Before dumping the module, we want all the TypeTrees to become part of the module. for item in diff_items.iter() { let name = item.source.clone(); diff --git a/compiler/rustc_codegen_llvm/src/errors.rs b/compiler/rustc_codegen_llvm/src/errors.rs index 97f492561659..4c5a78ca74fe 100644 --- a/compiler/rustc_codegen_llvm/src/errors.rs +++ b/compiler/rustc_codegen_llvm/src/errors.rs @@ -92,9 +92,12 @@ impl Diagnostic<'_, G> for ParseTargetMachineConfig<'_> { #[derive(Diagnostic)] #[diag(codegen_llvm_autodiff_without_lto)] -#[note] pub(crate) struct AutoDiffWithoutLTO; +#[derive(Diagnostic)] +#[diag(codegen_llvm_autodiff_without_enable)] +pub(crate) struct AutoDiffWithoutEnable; + #[derive(Diagnostic)] #[diag(codegen_llvm_lto_disallowed)] pub(crate) struct LtoDisallowed; diff --git a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs index 39bac13a9680..daa6696e9634 100644 --- a/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs +++ b/compiler/rustc_codegen_llvm/src/llvm/enzyme_ffi.rs @@ -35,3 +35,97 @@ pub enum LLVMRustVerifierFailureAction { LLVMPrintMessageAction = 1, LLVMReturnStatusAction = 2, } + +#[cfg(llvm_enzyme)] +pub use self::Enzyme_AD::*; + +#[cfg(llvm_enzyme)] +pub mod Enzyme_AD { + use libc::c_void; + extern "C" { + pub fn EnzymeSetCLBool(arg1: *mut ::std::os::raw::c_void, arg2: u8); + } + extern "C" { + static mut EnzymePrintPerf: c_void; + static mut EnzymePrintActivity: c_void; + static mut EnzymePrintType: c_void; + static mut EnzymePrint: c_void; + static mut EnzymeStrictAliasing: c_void; + static mut looseTypeAnalysis: c_void; + static mut EnzymeInline: c_void; + static mut RustTypeRules: c_void; + } + pub fn set_print_perf(print: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintPerf), print as u8); + } + } + pub fn set_print_activity(print: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintActivity), print as u8); + } + } + pub fn set_print_type(print: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrintType), print as u8); + } + } + pub fn set_print(print: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymePrint), print as u8); + } + } + pub fn set_strict_aliasing(strict: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymeStrictAliasing), strict as u8); + } + } + pub fn set_loose_types(loose: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(looseTypeAnalysis), loose as u8); + } + } + pub fn set_inline(val: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(EnzymeInline), val as u8); + } + } + pub fn set_rust_rules(val: bool) { + unsafe { + EnzymeSetCLBool(std::ptr::addr_of_mut!(RustTypeRules), val as u8); + } + } +} + +#[cfg(not(llvm_enzyme))] +pub use self::Fallback_AD::*; + +#[cfg(not(llvm_enzyme))] +pub mod Fallback_AD { + #![allow(unused_variables)] + + pub fn set_inline(val: bool) { + unimplemented!() + } + pub fn set_print_perf(print: bool) { + unimplemented!() + } + pub fn set_print_activity(print: bool) { + unimplemented!() + } + pub fn set_print_type(print: bool) { + unimplemented!() + } + pub fn set_print(print: bool) { + unimplemented!() + } + pub fn set_strict_aliasing(strict: bool) { + unimplemented!() + } + pub fn set_loose_types(loose: bool) { + unimplemented!() + } + pub fn set_rust_rules(val: bool) { + unimplemented!() + } +} diff --git a/compiler/rustc_codegen_ssa/src/back/write.rs b/compiler/rustc_codegen_ssa/src/back/write.rs index f029c08a8082..d2548deb8c7a 100644 --- a/compiler/rustc_codegen_ssa/src/back/write.rs +++ b/compiler/rustc_codegen_ssa/src/back/write.rs @@ -405,7 +405,8 @@ fn generate_lto_work( B::run_fat_lto(cgcx, needs_fat_lto, import_only_modules).unwrap_or_else(|e| e.raise()); if cgcx.lto == Lto::Fat && !autodiff.is_empty() { let config = cgcx.config(ModuleKind::Regular); - module = unsafe { module.autodiff(cgcx, autodiff, config).unwrap() }; + module = + unsafe { module.autodiff(cgcx, autodiff, config).unwrap_or_else(|e| e.raise()) }; } // We are adding a single work item, so the cost doesn't matter. vec![(WorkItem::LTO(module), 0)] diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index 233bfcb52971..aabd235bcabe 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -759,7 +759,7 @@ fn test_unstable_options_tracking_hash() { tracked!(allow_features, Some(vec![String::from("lang_items")])); tracked!(always_encode_mir, true); tracked!(assume_incomplete_release, true); - tracked!(autodiff, vec![AutoDiff::Print]); + tracked!(autodiff, vec![AutoDiff::Enable]); tracked!(binary_dep_depinfo, true); tracked!(box_noalias, false); tracked!( diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 85ef69ea2b74..4f44eaf6437b 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -198,33 +198,26 @@ pub enum CoverageLevel { /// The different settings that the `-Z autodiff` flag can have. #[derive(Clone, Copy, PartialEq, Hash, Debug)] pub enum AutoDiff { + /// Enable the autodiff opt pipeline + Enable, + /// Print TypeAnalysis information PrintTA, /// Print ActivityAnalysis Information PrintAA, /// Print Performance Warnings from Enzyme PrintPerf, - /// Combines the three print flags above. - Print, + /// Print intermediate IR generation steps + PrintSteps, /// Print the whole module, before running opts. PrintModBefore, - /// Print the whole module just before we pass it to Enzyme. - /// For Debug purpose, prefer the OPT flag below - PrintModAfterOpts, /// Print the module after Enzyme differentiated everything. - PrintModAfterEnzyme, + PrintModAfter, - /// Enzyme's loose type debug helper (can cause incorrect gradients) + /// Enzyme's loose type debug helper (can cause incorrect gradients!!) + /// Usable in cases where Enzyme errors with `can not deduce type of X`. LooseTypes, - - /// More flags - NoModOptAfter, - /// Tell Enzyme to run LLVM Opts on each function it generated. By default off, - /// since we already optimize the whole module after Enzyme is done. - EnableFncOpt, - NoVecUnroll, - RuntimeActivity, - /// Runs Enzyme specific Inlining + /// Runs Enzyme's aggressive inlining Inline, } diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 351dad3f3e42..0b94b4f122c4 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -707,7 +707,7 @@ mod desc { pub(crate) const parse_list: &str = "a space-separated list of strings"; pub(crate) const parse_list_with_polarity: &str = "a comma-separated list of strings, with elements beginning with + or -"; - pub(crate) const parse_autodiff: &str = "a comma separated list of settings: `Print`, `PrintTA`, `PrintAA`, `PrintPerf`, `PrintModBefore`, `PrintModAfterOpts`, `PrintModAfterEnzyme`, `LooseTypes`, `NoModOptAfter`, `EnableFncOpt`, `NoVecUnroll`, `Inline`"; + pub(crate) const parse_autodiff: &str = "a comma separated list of settings: `Enable`, `PrintSteps`, `PrintTA`, `PrintAA`, `PrintPerf`, `PrintModBefore`, `PrintModAfter`, `LooseTypes`, `Inline`"; pub(crate) const parse_comma_list: &str = "a comma-separated list of strings"; pub(crate) const parse_opt_comma_list: &str = parse_comma_list; pub(crate) const parse_number: &str = "a number"; @@ -1348,17 +1348,14 @@ pub mod parse { v.sort_unstable(); for &val in v.iter() { let variant = match val { + "Enable" => AutoDiff::Enable, "PrintTA" => AutoDiff::PrintTA, "PrintAA" => AutoDiff::PrintAA, "PrintPerf" => AutoDiff::PrintPerf, - "Print" => AutoDiff::Print, + "PrintSteps" => AutoDiff::PrintSteps, "PrintModBefore" => AutoDiff::PrintModBefore, - "PrintModAfterOpts" => AutoDiff::PrintModAfterOpts, - "PrintModAfterEnzyme" => AutoDiff::PrintModAfterEnzyme, + "PrintModAfter" => AutoDiff::PrintModAfter, "LooseTypes" => AutoDiff::LooseTypes, - "NoModOptAfter" => AutoDiff::NoModOptAfter, - "EnableFncOpt" => AutoDiff::EnableFncOpt, - "NoVecUnroll" => AutoDiff::NoVecUnroll, "Inline" => AutoDiff::Inline, _ => { // FIXME(ZuseZ4): print an error saying which value is not recognized @@ -2081,21 +2078,19 @@ options! { assume_incomplete_release: bool = (false, parse_bool, [TRACKED], "make cfg(version) treat the current version as incomplete (default: no)"), autodiff: Vec = (Vec::new(), parse_autodiff, [TRACKED], - "a list of optional autodiff flags to enable - Optional extra settings: - `=PrintTA` - `=PrintAA` - `=PrintPerf` - `=Print` - `=PrintModBefore` - `=PrintModAfterOpts` - `=PrintModAfterEnzyme` - `=LooseTypes` - `=NoModOptAfter` - `=EnableFncOpt` - `=NoVecUnroll` - `=Inline` - Multiple options can be combined with commas."), + "a list of autodiff flags to enable + Mandatory setting: + `=Enable` + Optional extra settings: + `=PrintTA` + `=PrintAA` + `=PrintPerf` + `=PrintSteps` + `=PrintModBefore` + `=PrintModAfter` + `=LooseTypes` + `=Inline` + Multiple options can be combined with commas."), #[rustc_lint_opt_deny_field_access("use `Session::binary_dep_depinfo` instead of this field")] binary_dep_depinfo: bool = (false, parse_bool, [TRACKED], "include artifacts (sysroot, crate dependencies) used during compilation in dep-info \ diff --git a/src/doc/unstable-book/src/compiler-flags/autodiff.md b/src/doc/unstable-book/src/compiler-flags/autodiff.md index 4e55be0ad95a..95c188d1f3b2 100644 --- a/src/doc/unstable-book/src/compiler-flags/autodiff.md +++ b/src/doc/unstable-book/src/compiler-flags/autodiff.md @@ -8,16 +8,13 @@ This feature allows you to differentiate functions using automatic differentiati Set the `-Zautodiff=` compiler flag to adjust the behaviour of the autodiff feature. Multiple options can be separated with a comma. Valid options are: +`Enable` - Required flag to enable autodiff `PrintTA` - print Type Analysis Information `PrintAA` - print Activity Analysis Information `PrintPerf` - print Performance Warnings from Enzyme -`Print` - prints all intermediate transformations +`PrintSteps` - prints all intermediate transformations `PrintModBefore` - print the whole module, before running opts -`PrintModAfterOpts` - print the whole module just before we pass it to Enzyme -`PrintModAfterEnzyme` - print the module after Enzyme differentiated everything +`PrintModAfter` - print the module after Enzyme differentiated everything `LooseTypes` - Enzyme's loose type debug helper (can cause incorrect gradients) `Inline` - runs Enzyme specific Inlining -`NoModOptAfter` - do not optimize the module after Enzyme is done -`EnableFncOpt` - tell Enzyme to run LLVM Opts on each function it generated -`NoVecUnroll` - do not unroll vectorized loops `RuntimeActivity` - allow specifying activity at runtime diff --git a/tests/codegen/autodiff.rs b/tests/codegen/autodiff.rs index abf7fcf3e4bc..cace0edb2b54 100644 --- a/tests/codegen/autodiff.rs +++ b/tests/codegen/autodiff.rs @@ -1,4 +1,4 @@ -//@ compile-flags: -C opt-level=3 -Clto=fat +//@ compile-flags: -Zautodiff=Enable -C opt-level=3 -Clto=fat //@ no-prefer-dynamic //@ needs-enzyme #![feature(autodiff)] From 49e9630641e44756b679187bfeefa85b06dfc86f Mon Sep 17 00:00:00 2001 From: Manuel Drehwald Date: Fri, 21 Feb 2025 21:53:31 -0500 Subject: [PATCH 239/255] enable rustc_autodiff cross-crate encoding --- compiler/rustc_feature/src/builtin_attrs.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compiler/rustc_feature/src/builtin_attrs.rs b/compiler/rustc_feature/src/builtin_attrs.rs index 8eb9bf158290..b2ada8fe61ef 100644 --- a/compiler/rustc_feature/src/builtin_attrs.rs +++ b/compiler/rustc_feature/src/builtin_attrs.rs @@ -743,7 +743,7 @@ pub static BUILTIN_ATTRIBUTES: &[BuiltinAttribute] = &[ rustc_attr!( rustc_autodiff, Normal, template!(Word, List: r#""...""#), DuplicatesOk, - EncodeCrossCrate::No, INTERNAL_UNSTABLE + EncodeCrossCrate::Yes, INTERNAL_UNSTABLE ), // ========================================================================== From f0ced81439d7ebf1cb6a49ff870a14c2f301af54 Mon Sep 17 00:00:00 2001 From: Jubilee Young Date: Fri, 21 Feb 2025 21:12:39 -0800 Subject: [PATCH 240/255] jubilee cleared out the review queue --- triagebot.toml | 1 - 1 file changed, 1 deletion(-) diff --git a/triagebot.toml b/triagebot.toml index 31061bd288ef..f9eb09ff3438 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -1081,7 +1081,6 @@ warn_non_default_branch.enable = true contributing_url = "https://rustc-dev-guide.rust-lang.org/getting-started.html" users_on_vacation = [ "jyn514", - "workingjubilee", ] [[assign.warn_non_default_branch.exceptions]] From c45463ec8b2675df903b2436d4baf959d801aa08 Mon Sep 17 00:00:00 2001 From: yukang Date: Sat, 22 Feb 2025 13:28:12 +0800 Subject: [PATCH 241/255] remove invalid suggestion of into_iter for extern macro --- .../rustc_hir_typeck/src/method/suggest.rs | 12 +++++++----- .../auxiliary/quote-issue-137345.rs | 19 +++++++++++++++++++ .../ui/proc-macro/valid-sugg-issue-137345.rs | 17 +++++++++++++++++ .../proc-macro/valid-sugg-issue-137345.stderr | 13 +++++++++++++ 4 files changed, 56 insertions(+), 5 deletions(-) create mode 100644 tests/ui/proc-macro/auxiliary/quote-issue-137345.rs create mode 100644 tests/ui/proc-macro/valid-sugg-issue-137345.rs create mode 100644 tests/ui/proc-macro/valid-sugg-issue-137345.stderr diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index c757d089478f..93720a7a4675 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -905,11 +905,13 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } else if self.impl_into_iterator_should_be_iterator(rcvr_ty, span, unsatisfied_predicates) { err.span_label(span, format!("`{rcvr_ty}` is not an iterator")); - err.multipart_suggestion_verbose( - "call `.into_iter()` first", - vec![(span.shrink_to_lo(), format!("into_iter()."))], - Applicability::MaybeIncorrect, - ); + if !span.in_external_macro(self.tcx.sess.source_map()) { + err.multipart_suggestion_verbose( + "call `.into_iter()` first", + vec![(span.shrink_to_lo(), format!("into_iter()."))], + Applicability::MaybeIncorrect, + ); + } return err.emit(); } else if !unsatisfied_predicates.is_empty() && matches!(rcvr_ty.kind(), ty::Param(_)) { // We special case the situation where we are looking for `_` in diff --git a/tests/ui/proc-macro/auxiliary/quote-issue-137345.rs b/tests/ui/proc-macro/auxiliary/quote-issue-137345.rs new file mode 100644 index 000000000000..f125a14669f7 --- /dev/null +++ b/tests/ui/proc-macro/auxiliary/quote-issue-137345.rs @@ -0,0 +1,19 @@ +extern crate proc_macro; +use proc_macro::TokenStream; + +fn items() -> impl IntoIterator { + vec![1, 2, 3] +} + +#[macro_export] +macro_rules! quote { + // Rule for any other number of tokens. + ($($tt:tt)*) => {{ + fn items() -> impl IntoIterator { + vec![1, 2, 3] + } + let _s = TokenStream::new(); + let other_items = items().map(|i| i + 1); + _s + }}; +} diff --git a/tests/ui/proc-macro/valid-sugg-issue-137345.rs b/tests/ui/proc-macro/valid-sugg-issue-137345.rs new file mode 100644 index 000000000000..78674797b8da --- /dev/null +++ b/tests/ui/proc-macro/valid-sugg-issue-137345.rs @@ -0,0 +1,17 @@ +//@ aux-crate: quote=quote-issue-137345.rs + +extern crate proc_macro; +extern crate quote; + +use proc_macro::TokenStream; + +pub fn default_args_fn(_: TokenStream) -> TokenStream { + let decl_macro = TokenStream::new(); + + quote::quote! { + #(#decl_macro)* + } + .into() //~^^^ ERROR no method named `map` found for opaque type +} + +fn main() {} diff --git a/tests/ui/proc-macro/valid-sugg-issue-137345.stderr b/tests/ui/proc-macro/valid-sugg-issue-137345.stderr new file mode 100644 index 000000000000..40336803f0db --- /dev/null +++ b/tests/ui/proc-macro/valid-sugg-issue-137345.stderr @@ -0,0 +1,13 @@ +error[E0599]: no method named `map` found for opaque type `impl IntoIterator` in the current scope + --> $DIR/valid-sugg-issue-137345.rs:11:5 + | +LL | / quote::quote! { +LL | | #(#decl_macro)* +LL | | } + | |_____^ `impl IntoIterator` is not an iterator + | + = note: this error originates in the macro `quote::quote` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0599`. From d1b34acb3bfa202704b5ab13e4b35eb569cf7d67 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sat, 22 Feb 2025 14:12:55 +0100 Subject: [PATCH 242/255] make the new intrinsics safe --- .../rustc_hir_analysis/src/check/intrinsic.rs | 4 ++++ library/core/src/intrinsics/mod.rs | 16 ++++++++-------- library/std/src/f128.rs | 2 +- library/std/src/f16.rs | 2 +- library/std/src/f32.rs | 2 +- library/std/src/f64.rs | 2 +- 6 files changed, 16 insertions(+), 12 deletions(-) diff --git a/compiler/rustc_hir_analysis/src/check/intrinsic.rs b/compiler/rustc_hir_analysis/src/check/intrinsic.rs index acdd2facc24d..5c0c7a86a0cc 100644 --- a/compiler/rustc_hir_analysis/src/check/intrinsic.rs +++ b/compiler/rustc_hir_analysis/src/check/intrinsic.rs @@ -137,6 +137,10 @@ pub fn intrinsic_operation_unsafety(tcx: TyCtxt<'_>, intrinsic_id: LocalDefId) - | sym::fmul_algebraic | sym::fdiv_algebraic | sym::frem_algebraic + | sym::round_ties_even_f16 + | sym::round_ties_even_f32 + | sym::round_ties_even_f64 + | sym::round_ties_even_f128 | sym::const_eval_select => hir::Safety::Safe, _ => hir::Safety::Unsafe, }; diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 320122a53e9d..a52f2b20246d 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -2748,13 +2748,13 @@ pub unsafe fn truncf128(_x: f128) -> f128 { #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] #[cfg(not(bootstrap))] -pub unsafe fn round_ties_even_f16(_x: f16) -> f16 { +pub fn round_ties_even_f16(_x: f16) -> f16 { unreachable!() } /// To be removed on next bootstrap bump. #[cfg(bootstrap)] -pub unsafe fn round_ties_even_f16(x: f16) -> f16 { +pub fn round_ties_even_f16(x: f16) -> f16 { #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] @@ -2775,13 +2775,13 @@ pub unsafe fn round_ties_even_f16(x: f16) -> f16 { #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] #[cfg(not(bootstrap))] -pub unsafe fn round_ties_even_f32(_x: f32) -> f32 { +pub fn round_ties_even_f32(_x: f32) -> f32 { unreachable!() } /// To be removed on next bootstrap bump. #[cfg(bootstrap)] -pub unsafe fn round_ties_even_f32(x: f32) -> f32 { +pub fn round_ties_even_f32(x: f32) -> f32 { #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] @@ -2802,13 +2802,13 @@ pub unsafe fn round_ties_even_f32(x: f32) -> f32 { #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] #[cfg(not(bootstrap))] -pub unsafe fn round_ties_even_f64(_x: f64) -> f64 { +pub fn round_ties_even_f64(_x: f64) -> f64 { unreachable!() } /// To be removed on next bootstrap bump. #[cfg(bootstrap)] -pub unsafe fn round_ties_even_f64(x: f64) -> f64 { +pub fn round_ties_even_f64(x: f64) -> f64 { #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] @@ -2829,13 +2829,13 @@ pub unsafe fn round_ties_even_f64(x: f64) -> f64 { #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] #[cfg(not(bootstrap))] -pub unsafe fn round_ties_even_f128(_x: f128) -> f128 { +pub fn round_ties_even_f128(_x: f128) -> f128 { unreachable!() } /// To be removed on next bootstrap bump. #[cfg(bootstrap)] -pub unsafe fn round_ties_even_f128(x: f128) -> f128 { +pub fn round_ties_even_f128(x: f128) -> f128 { #[rustc_intrinsic] #[rustc_intrinsic_must_be_overridden] #[rustc_nounwind] diff --git a/library/std/src/f128.rs b/library/std/src/f128.rs index 615c4fd33484..d4aa174cee51 100644 --- a/library/std/src/f128.rs +++ b/library/std/src/f128.rs @@ -129,7 +129,7 @@ impl f128 { #[unstable(feature = "f128", issue = "116909")] #[must_use = "method returns a new number and does not mutate the original value"] pub fn round_ties_even(self) -> f128 { - unsafe { intrinsics::round_ties_even_f128(self) } + intrinsics::round_ties_even_f128(self) } /// Returns the integer part of `self`. diff --git a/library/std/src/f16.rs b/library/std/src/f16.rs index 85b82b91fabc..c0678732365d 100644 --- a/library/std/src/f16.rs +++ b/library/std/src/f16.rs @@ -129,7 +129,7 @@ impl f16 { #[unstable(feature = "f16", issue = "116909")] #[must_use = "method returns a new number and does not mutate the original value"] pub fn round_ties_even(self) -> f16 { - unsafe { intrinsics::round_ties_even_f16(self) } + intrinsics::round_ties_even_f16(self) } /// Returns the integer part of `self`. diff --git a/library/std/src/f32.rs b/library/std/src/f32.rs index da1f000278da..bdcbd8b30b65 100644 --- a/library/std/src/f32.rs +++ b/library/std/src/f32.rs @@ -125,7 +125,7 @@ impl f32 { #[stable(feature = "round_ties_even", since = "1.77.0")] #[inline] pub fn round_ties_even(self) -> f32 { - unsafe { intrinsics::round_ties_even_f32(self) } + intrinsics::round_ties_even_f32(self) } /// Returns the integer part of `self`. diff --git a/library/std/src/f64.rs b/library/std/src/f64.rs index 8a9f693a7a82..11acc13d6570 100644 --- a/library/std/src/f64.rs +++ b/library/std/src/f64.rs @@ -125,7 +125,7 @@ impl f64 { #[stable(feature = "round_ties_even", since = "1.77.0")] #[inline] pub fn round_ties_even(self) -> f64 { - unsafe { intrinsics::round_ties_even_f64(self) } + intrinsics::round_ties_even_f64(self) } /// Returns the integer part of `self`. From 7d9322d4d7dcdd740a7d924259fc7555f662662f Mon Sep 17 00:00:00 2001 From: Weihang Lo Date: Sat, 22 Feb 2025 10:43:28 -0500 Subject: [PATCH 243/255] Update cargo --- src/tools/cargo | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/tools/cargo b/src/tools/cargo index ce948f4616e3..1d1d646c06a8 160000 --- a/src/tools/cargo +++ b/src/tools/cargo @@ -1 +1 @@ -Subproject commit ce948f4616e3d4277e30c75c8bb01e094910df39 +Subproject commit 1d1d646c06a84c1aa53967b394b7f1218f85db82 From a8f8b8de66025e254cbed08a53d5084162605d98 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Esteban=20K=C3=BCber?= Date: Sat, 22 Feb 2025 18:29:12 +0000 Subject: [PATCH 244/255] Fix "missing match arm body" suggestion involving `!` Include the match arm guard in the gated span, so that the suggestion to add a body is correct instead of inserting the body before the guard. Make the suggestion verbose. ``` error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:43:9 | LL | Some(_) if false, | ^^^^^^^^^^^^^^^^ | help: add a body after the pattern | LL | Some(_) if false => { todo!() }, | ++++++++++++++ ``` --- compiler/rustc_ast_passes/src/errors.rs | 9 ++- compiler/rustc_parse/src/parser/expr.rs | 3 +- .../feature-gate-never_patterns.stderr | 35 ++++++++++-- .../macro/macro-expand-to-match-arm.stderr | 7 ++- tests/ui/parser/match-arm-without-body.stderr | 56 ++++++++++++++++--- 5 files changed, 94 insertions(+), 16 deletions(-) diff --git a/compiler/rustc_ast_passes/src/errors.rs b/compiler/rustc_ast_passes/src/errors.rs index 0eb2043eaa35..6eb9bb1c0daf 100644 --- a/compiler/rustc_ast_passes/src/errors.rs +++ b/compiler/rustc_ast_passes/src/errors.rs @@ -804,7 +804,14 @@ pub(crate) struct NegativeBoundWithParentheticalNotation { pub(crate) struct MatchArmWithNoBody { #[primary_span] pub span: Span, - #[suggestion(code = " => todo!(),", applicability = "has-placeholders")] + // We include the braces around `todo!()` so that a comma is optional, and we don't have to have + // any logic looking at the arm being replaced if there was a comma already or not for the + // resulting code to be correct. + #[suggestion( + code = " => {{ todo!() }}", + applicability = "has-placeholders", + style = "verbose" + )] pub suggestion: Span, } diff --git a/compiler/rustc_parse/src/parser/expr.rs b/compiler/rustc_parse/src/parser/expr.rs index e0e6c2177da5..b2e58c942806 100644 --- a/compiler/rustc_parse/src/parser/expr.rs +++ b/compiler/rustc_parse/src/parser/expr.rs @@ -3125,10 +3125,11 @@ impl<'a> Parser<'a> { let mut result = if armless { // A pattern without a body, allowed for never patterns. arm_body = None; + let span = lo.to(this.prev_token.span); this.expect_one_of(&[exp!(Comma)], &[exp!(CloseBrace)]).map(|x| { // Don't gate twice if !pat.contains_never_pattern() { - this.psess.gated_spans.gate(sym::never_patterns, pat.span); + this.psess.gated_spans.gate(sym::never_patterns, span); } x }) diff --git a/tests/ui/feature-gates/feature-gate-never_patterns.stderr b/tests/ui/feature-gates/feature-gate-never_patterns.stderr index dcd5db56da88..473e263c7965 100644 --- a/tests/ui/feature-gates/feature-gate-never_patterns.stderr +++ b/tests/ui/feature-gates/feature-gate-never_patterns.stderr @@ -58,19 +58,34 @@ error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:38:9 | LL | Some(_) - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) => { todo!() } + | ++++++++++++++ error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:43:9 | LL | Some(_) if false, - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if false => { todo!() }, + | ++++++++++++++ error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:45:9 | LL | Some(_) if false - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if false => { todo!() } + | ++++++++++++++ error[E0658]: `!` patterns are experimental --> $DIR/feature-gate-never_patterns.rs:50:13 @@ -96,13 +111,23 @@ error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:64:9 | LL | Some(_) - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) => { todo!() } + | ++++++++++++++ error: `match` arm with no body --> $DIR/feature-gate-never_patterns.rs:70:9 | LL | Some(_) if false - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if false => { todo!() } + | ++++++++++++++ error: a guard on a never pattern will never be run --> $DIR/feature-gate-never_patterns.rs:54:19 diff --git a/tests/ui/parser/macro/macro-expand-to-match-arm.stderr b/tests/ui/parser/macro/macro-expand-to-match-arm.stderr index 1927d80fd724..702e76d59f98 100644 --- a/tests/ui/parser/macro/macro-expand-to-match-arm.stderr +++ b/tests/ui/parser/macro/macro-expand-to-match-arm.stderr @@ -14,7 +14,12 @@ error: `match` arm with no body --> $DIR/macro-expand-to-match-arm.rs:14:9 | LL | arm!(None => {}), - | ^^^^^^^^^^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | arm!(None => {}) => { todo!() }, + | ++++++++++++++ error: aborting due to 2 previous errors diff --git a/tests/ui/parser/match-arm-without-body.stderr b/tests/ui/parser/match-arm-without-body.stderr index 9df8485972f3..a65875b787a3 100644 --- a/tests/ui/parser/match-arm-without-body.stderr +++ b/tests/ui/parser/match-arm-without-body.stderr @@ -68,49 +68,89 @@ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:7:9 | LL | Some(_) - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) => { todo!() } + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:30:9 | LL | Some(_) if true - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if true => { todo!() } + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:40:9 | LL | Some(_) if true, - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if true => { todo!() }, + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:45:9 | LL | Some(_) if true, - | ^^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | Some(_) if true => { todo!() }, + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:51:9 | LL | pat!() - | ^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^ + | +help: add a body after the pattern + | +LL | pat!() => { todo!() } + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:56:9 | LL | pat!(), - | ^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^ + | +help: add a body after the pattern + | +LL | pat!() => { todo!() }, + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:61:9 | LL | pat!() if true, - | ^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^^^^^^^^^ + | +help: add a body after the pattern + | +LL | pat!() if true => { todo!() }, + | ++++++++++++++ error: `match` arm with no body --> $DIR/match-arm-without-body.rs:72:9 | LL | pat!(), - | ^^^^^^- help: add a body after the pattern: `=> todo!(),` + | ^^^^^^ + | +help: add a body after the pattern + | +LL | pat!() => { todo!() }, + | ++++++++++++++ error: aborting due to 13 previous errors From 12e3911d81034864314503b9c2d9fba2773c7904 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Thu, 20 Feb 2025 18:58:46 +0000 Subject: [PATCH 245/255] Greatly simplify lifetime captures in edition 2024 --- compiler/rustc_abi/src/lib.rs | 2 +- compiler/rustc_ast_lowering/src/lib.rs | 17 ++++++------ .../src/attributes/allow_unstable.rs | 24 ++++++++--------- .../src/diagnostics/conflict_errors.rs | 7 +++-- .../rustc_borrowck/src/member_constraints.rs | 7 ++--- .../src/polonius/loan_liveness.rs | 2 +- .../rustc_borrowck/src/region_infer/mod.rs | 10 +++---- .../src/region_infer/reverse_sccs.rs | 5 +--- .../rustc_borrowck/src/region_infer/values.rs | 24 +++++++---------- .../src/type_check/free_region_relations.rs | 2 +- .../src/type_check/liveness/local_use_map.rs | 8 +++--- .../rustc_borrowck/src/universal_regions.rs | 8 +++--- .../rustc_const_eval/src/interpret/intern.rs | 4 +-- .../src/graph/implementation/mod.rs | 8 +++--- .../src/graph/scc/mod.rs | 2 +- .../src/sorted_map/index_map.rs | 4 +-- compiler/rustc_data_structures/src/sso/map.rs | 2 +- compiler/rustc_data_structures/src/sso/set.rs | 2 +- .../rustc_data_structures/src/sync/vec.rs | 4 +-- .../src/transitive_relation.rs | 2 +- compiler/rustc_expand/src/proc_macro.rs | 2 +- compiler/rustc_hir/src/definitions.rs | 2 +- compiler/rustc_hir/src/lang_items.rs | 2 +- compiler/rustc_hir_analysis/src/collect.rs | 5 ++-- .../src/collect/resolve_bound_vars.rs | 7 ++--- compiler/rustc_index/src/bit_set.rs | 2 +- compiler/rustc_index/src/interval.rs | 4 +-- compiler/rustc_index/src/slice.rs | 6 ++--- compiler/rustc_index/src/vec.rs | 4 +-- .../src/infer/canonical/query_response.rs | 13 +++++----- .../rustc_infer/src/infer/free_regions.rs | 2 +- compiler/rustc_infer/src/infer/mod.rs | 7 ++--- .../rustc_infer/src/infer/outlives/mod.rs | 2 +- compiler/rustc_lexer/src/lib.rs | 2 +- compiler/rustc_lint/src/context.rs | 4 +-- compiler/rustc_metadata/src/rmeta/decoder.rs | 26 ++++++++----------- compiler/rustc_middle/src/hir/map.rs | 13 ++++------ compiler/rustc_middle/src/hir/mod.rs | 16 ++++++------ compiler/rustc_middle/src/hir/place.rs | 2 +- .../interpret/allocation/provenance_map.rs | 2 +- compiler/rustc_middle/src/mir/mod.rs | 9 +++---- compiler/rustc_middle/src/mir/pretty.rs | 2 +- compiler/rustc_middle/src/ty/adt.rs | 3 +-- compiler/rustc_middle/src/ty/closure.rs | 3 +-- compiler/rustc_middle/src/ty/context.rs | 8 +++--- compiler/rustc_middle/src/ty/generic_args.rs | 10 +++---- compiler/rustc_middle/src/ty/mod.rs | 9 +++---- compiler/rustc_middle/src/ty/predicate.rs | 13 ++++------ compiler/rustc_middle/src/ty/sty.rs | 5 ++-- compiler/rustc_middle/src/ty/trait_def.rs | 4 +-- .../rustc_middle/src/ty/typeck_results.rs | 2 +- .../src/builder/expr/as_place.rs | 6 ++--- compiler/rustc_mir_build/src/thir/cx/mod.rs | 6 ++--- .../rustc_mir_dataflow/src/move_paths/mod.rs | 2 +- compiler/rustc_mir_dataflow/src/un_derefer.rs | 2 +- .../rustc_mir_dataflow/src/value_analysis.rs | 6 +---- .../rustc_mir_transform/src/coverage/graph.rs | 3 +-- .../rustc_mir_transform/src/coverage/query.rs | 3 +-- .../rustc_mir_transform/src/coverage/spans.rs | 3 +-- .../rustc_mir_transform/src/jump_threading.rs | 4 +-- compiler/rustc_mir_transform/src/sroa.rs | 2 +- compiler/rustc_mir_transform/src/ssa.rs | 2 +- compiler/rustc_monomorphize/src/collector.rs | 2 +- compiler/rustc_parse/src/parser/mod.rs | 2 +- compiler/rustc_pattern_analysis/src/lib.rs | 10 +++---- .../rustc_pattern_analysis/src/pat_column.rs | 4 +-- compiler/rustc_pattern_analysis/src/rustc.rs | 26 ++++++++----------- .../rustc_pattern_analysis/src/usefulness.rs | 25 ++++++++---------- .../tests/common/mod.rs | 13 +++++----- .../src/dep_graph/serialized.rs | 2 +- compiler/rustc_session/src/parse.rs | 2 +- compiler/rustc_session/src/search_paths.rs | 11 ++++---- .../error_reporting/infer/need_type_info.rs | 2 +- .../src/solve/fulfill.rs | 4 +-- .../src/traits/fulfill.rs | 7 +++-- .../traits/specialize/specialization_graph.rs | 7 ++--- .../src/traits/vtable.rs | 2 +- compiler/rustc_ty_utils/src/implied_bounds.rs | 4 +-- .../rustc_ty_utils/src/layout/invariant.rs | 2 +- compiler/rustc_ty_utils/src/needs_drop.rs | 2 +- .../rustc_type_ir/src/search_graph/mod.rs | 2 +- compiler/stable_mir/src/mir/body.rs | 2 +- compiler/stable_mir/src/ty.rs | 2 +- .../diagnostics/match_check/pat_analysis.rs | 10 +++---- 84 files changed, 223 insertions(+), 294 deletions(-) diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index 34228912041d..879e4bf64a85 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1345,7 +1345,7 @@ impl FieldsShape { /// Gets source indices of the fields by increasing offsets. #[inline] - pub fn index_by_increasing_offset(&self) -> impl ExactSizeIterator + '_ { + pub fn index_by_increasing_offset(&self) -> impl ExactSizeIterator { let mut inverse_small = [0u8; 64]; let mut inverse_big = IndexVec::new(); let use_small = self.count() <= inverse_small.len(); diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 1c777111896d..b865cbedbbb7 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -45,7 +45,6 @@ use std::sync::Arc; use rustc_ast::node_id::NodeMap; use rustc_ast::{self as ast, *}; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::sorted_map::SortedMap; use rustc_data_structures::stable_hasher::{HashStable, StableHasher}; @@ -1821,11 +1820,11 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { self.new_named_lifetime_with_res(new_id, ident, res) } - fn lower_generic_params_mut<'s>( - &'s mut self, - params: &'s [GenericParam], + fn lower_generic_params_mut( + &mut self, + params: &[GenericParam], source: hir::GenericParamSource, - ) -> impl Iterator> + Captures<'a> + Captures<'s> { + ) -> impl Iterator> { params.iter().map(move |param| self.lower_generic_param(param, source)) } @@ -1986,11 +1985,11 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> { self.arena.alloc_from_iter(self.lower_param_bounds_mut(bounds, itctx)) } - fn lower_param_bounds_mut<'s>( - &'s mut self, - bounds: &'s [GenericBound], + fn lower_param_bounds_mut( + &mut self, + bounds: &[GenericBound], itctx: ImplTraitContext, - ) -> impl Iterator> + Captures<'s> + Captures<'a> { + ) -> impl Iterator> { bounds.iter().map(move |bound| self.lower_param_bound(bound, itctx)) } diff --git a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs index 471168ed4f56..13d246b08a8f 100644 --- a/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs +++ b/compiler/rustc_attr_parsing/src/attributes/allow_unstable.rs @@ -4,25 +4,25 @@ use rustc_span::{Symbol, sym}; use crate::session_diagnostics; -pub fn allow_internal_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], -) -> impl Iterator + 'a { +pub fn allow_internal_unstable( + sess: &Session, + attrs: &[impl AttributeExt], +) -> impl Iterator { allow_unstable(sess, attrs, sym::allow_internal_unstable) } -pub fn rustc_allow_const_fn_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], -) -> impl Iterator + 'a { +pub fn rustc_allow_const_fn_unstable( + sess: &Session, + attrs: &[impl AttributeExt], +) -> impl Iterator { allow_unstable(sess, attrs, sym::rustc_allow_const_fn_unstable) } -fn allow_unstable<'a>( - sess: &'a Session, - attrs: &'a [impl AttributeExt], +fn allow_unstable( + sess: &Session, + attrs: &[impl AttributeExt], symbol: Symbol, -) -> impl Iterator + 'a { +) -> impl Iterator { let attrs = filter_by_name(attrs, symbol); let list = attrs .filter_map(move |attr| { diff --git a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs index 94662070db40..f33f2ab58e05 100644 --- a/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs +++ b/compiler/rustc_borrowck/src/diagnostics/conflict_errors.rs @@ -8,7 +8,6 @@ use std::ops::ControlFlow; use either::Either; use hir::{ClosureKind, Path}; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxIndexSet; use rustc_errors::codes::*; use rustc_errors::{Applicability, Diag, MultiSpan, struct_span_code_err}; @@ -3530,10 +3529,10 @@ impl<'infcx, 'tcx> MirBorrowckCtxt<'_, 'infcx, 'tcx> { location: Location, mpi: MovePathIndex, ) -> (Vec, Vec) { - fn predecessor_locations<'a, 'tcx>( - body: &'a mir::Body<'tcx>, + fn predecessor_locations<'tcx>( + body: &mir::Body<'tcx>, location: Location, - ) -> impl Iterator + Captures<'tcx> + 'a { + ) -> impl Iterator { if location.statement_index == 0 { let predecessors = body.basic_blocks.predecessors()[location.block].to_vec(); Either::Left(predecessors.into_iter().map(move |bb| body.terminator_loc(bb))) diff --git a/compiler/rustc_borrowck/src/member_constraints.rs b/compiler/rustc_borrowck/src/member_constraints.rs index a0adf471fd31..bdd0f6fe11e0 100644 --- a/compiler/rustc_borrowck/src/member_constraints.rs +++ b/compiler/rustc_borrowck/src/member_constraints.rs @@ -1,7 +1,6 @@ use std::hash::Hash; use std::ops::Index; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxIndexMap; use rustc_index::{IndexSlice, IndexVec}; use rustc_middle::ty::{self, Ty}; @@ -147,9 +146,7 @@ impl<'tcx, R> MemberConstraintSet<'tcx, R> where R: Copy + Hash + Eq, { - pub(crate) fn all_indices( - &self, - ) -> impl Iterator + Captures<'tcx> + '_ { + pub(crate) fn all_indices(&self) -> impl Iterator { self.constraints.indices() } @@ -159,7 +156,7 @@ where pub(crate) fn indices( &self, member_region_vid: R, - ) -> impl Iterator + Captures<'tcx> + '_ { + ) -> impl Iterator { let mut next = self.first_constraints.get(&member_region_vid).cloned(); std::iter::from_fn(move || -> Option { if let Some(current) = next { diff --git a/compiler/rustc_borrowck/src/polonius/loan_liveness.rs b/compiler/rustc_borrowck/src/polonius/loan_liveness.rs index 768c12a97a64..5cd265e0db92 100644 --- a/compiler/rustc_borrowck/src/polonius/loan_liveness.rs +++ b/compiler/rustc_borrowck/src/polonius/loan_liveness.rs @@ -175,7 +175,7 @@ impl LocalizedConstraintGraph { } /// Returns the outgoing edges of a given node, not its transitive closure. - fn outgoing_edges(&self, node: LocalizedNode) -> impl Iterator + use<'_> { + fn outgoing_edges(&self, node: LocalizedNode) -> impl Iterator { // The outgoing edges are: // - the physical edges present at this node, // - the materialized logical edges that exist virtually at all points for this node's diff --git a/compiler/rustc_borrowck/src/region_infer/mod.rs b/compiler/rustc_borrowck/src/region_infer/mod.rs index e0e3e028c612..a00fce08c9ba 100644 --- a/compiler/rustc_borrowck/src/region_infer/mod.rs +++ b/compiler/rustc_borrowck/src/region_infer/mod.rs @@ -576,9 +576,7 @@ impl<'tcx> RegionInferenceContext<'tcx> { } /// Returns an iterator over all the outlives constraints. - pub(crate) fn outlives_constraints( - &self, - ) -> impl Iterator> + '_ { + pub(crate) fn outlives_constraints(&self) -> impl Iterator> { self.constraints.outlives().iter().copied() } @@ -615,10 +613,10 @@ impl<'tcx> RegionInferenceContext<'tcx> { self.scc_values.region_value_str(scc) } - pub(crate) fn placeholders_contained_in<'a>( - &'a self, + pub(crate) fn placeholders_contained_in( + &self, r: RegionVid, - ) -> impl Iterator + 'a { + ) -> impl Iterator { let scc = self.constraint_sccs.scc(r); self.scc_values.placeholders_contained_in(scc) } diff --git a/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs b/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs index d0cfe572d087..b2ed8a358279 100644 --- a/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs +++ b/compiler/rustc_borrowck/src/region_infer/reverse_sccs.rs @@ -20,10 +20,7 @@ pub(crate) struct ReverseSccGraph { impl ReverseSccGraph { /// Find all universal regions that are required to outlive the given SCC. - pub(super) fn upper_bounds<'a>( - &'a self, - scc0: ConstraintSccIndex, - ) -> impl Iterator + 'a { + pub(super) fn upper_bounds(&self, scc0: ConstraintSccIndex) -> impl Iterator { let mut duplicates = FxIndexSet::default(); graph::depth_first_search(&self.graph, scc0) .flat_map(move |scc1| { diff --git a/compiler/rustc_borrowck/src/region_infer/values.rs b/compiler/rustc_borrowck/src/region_infer/values.rs index f1bcb353dc61..d9ac5b5cb132 100644 --- a/compiler/rustc_borrowck/src/region_infer/values.rs +++ b/compiler/rustc_borrowck/src/region_infer/values.rs @@ -88,7 +88,7 @@ impl LivenessValues { } /// Iterate through each region that has a value in this set. - pub(crate) fn regions(&self) -> impl Iterator + '_ { + pub(crate) fn regions(&self) -> impl Iterator { self.points.as_ref().expect("use with_specific_points").rows() } @@ -96,7 +96,7 @@ impl LivenessValues { // We are passing query instability implications to the caller. #[rustc_lint_query_instability] #[allow(rustc::potential_query_instability)] - pub(crate) fn live_regions_unordered(&self) -> impl Iterator + '_ { + pub(crate) fn live_regions_unordered(&self) -> impl Iterator { self.live_regions.as_ref().unwrap().iter().copied() } @@ -143,7 +143,7 @@ impl LivenessValues { } /// Returns an iterator of all the points where `region` is live. - fn live_points(&self, region: RegionVid) -> impl Iterator + '_ { + fn live_points(&self, region: RegionVid) -> impl Iterator { let Some(points) = &self.points else { unreachable!( "Should be using LivenessValues::with_specific_points to ask whether live at a location" @@ -340,7 +340,7 @@ impl RegionValues { } /// Returns the locations contained within a given region `r`. - pub(crate) fn locations_outlived_by<'a>(&'a self, r: N) -> impl Iterator + 'a { + pub(crate) fn locations_outlived_by(&self, r: N) -> impl Iterator { self.points.row(r).into_iter().flat_map(move |set| { set.iter() .take_while(move |&p| self.location_map.point_in_range(p)) @@ -349,18 +349,15 @@ impl RegionValues { } /// Returns just the universal regions that are contained in a given region's value. - pub(crate) fn universal_regions_outlived_by<'a>( - &'a self, - r: N, - ) -> impl Iterator + 'a { + pub(crate) fn universal_regions_outlived_by(&self, r: N) -> impl Iterator { self.free_regions.row(r).into_iter().flat_map(|set| set.iter()) } /// Returns all the elements contained in a given region's value. - pub(crate) fn placeholders_contained_in<'a>( - &'a self, + pub(crate) fn placeholders_contained_in( + &self, r: N, - ) -> impl Iterator + 'a { + ) -> impl Iterator { self.placeholders .row(r) .into_iter() @@ -369,10 +366,7 @@ impl RegionValues { } /// Returns all the elements contained in a given region's value. - pub(crate) fn elements_contained_in<'a>( - &'a self, - r: N, - ) -> impl Iterator + 'a { + pub(crate) fn elements_contained_in(&self, r: N) -> impl Iterator { let points_iter = self.locations_outlived_by(r).map(RegionElement::Location); let free_regions_iter = diff --git a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs index efbae1e15353..eaac633b512d 100644 --- a/compiler/rustc_borrowck/src/type_check/free_region_relations.rs +++ b/compiler/rustc_borrowck/src/type_check/free_region_relations.rs @@ -172,7 +172,7 @@ impl UniversalRegionRelations<'_> { } /// Returns the _non-transitive_ set of known `outlives` constraints between free regions. - pub(crate) fn known_outlives(&self) -> impl Iterator + '_ { + pub(crate) fn known_outlives(&self) -> impl Iterator { self.outlives.base_edges() } } diff --git a/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs b/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs index 6182b68f6f41..9591da83708b 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/local_use_map.rs @@ -54,7 +54,7 @@ rustc_index::newtype_index! { fn appearances_iter( first: Option, appearances: &Appearances, -) -> impl Iterator + '_ { +) -> impl Iterator { AppearancesIter { appearances, current: first } } @@ -107,17 +107,17 @@ impl LocalUseMap { local_use_map } - pub(crate) fn defs(&self, local: Local) -> impl Iterator + '_ { + pub(crate) fn defs(&self, local: Local) -> impl Iterator { appearances_iter(self.first_def_at[local], &self.appearances) .map(move |aa| self.appearances[aa].point_index) } - pub(crate) fn uses(&self, local: Local) -> impl Iterator + '_ { + pub(crate) fn uses(&self, local: Local) -> impl Iterator { appearances_iter(self.first_use_at[local], &self.appearances) .map(move |aa| self.appearances[aa].point_index) } - pub(crate) fn drops(&self, local: Local) -> impl Iterator + '_ { + pub(crate) fn drops(&self, local: Local) -> impl Iterator { appearances_iter(self.first_drop_at[local], &self.appearances) .map(move |aa| self.appearances[aa].point_index) } diff --git a/compiler/rustc_borrowck/src/universal_regions.rs b/compiler/rustc_borrowck/src/universal_regions.rs index c578eb4dc458..b39ead66e95c 100644 --- a/compiler/rustc_borrowck/src/universal_regions.rs +++ b/compiler/rustc_borrowck/src/universal_regions.rs @@ -308,7 +308,7 @@ impl<'tcx> UniversalRegions<'tcx> { /// Returns an iterator over all the RegionVids corresponding to /// universally quantified free regions. - pub(crate) fn universal_regions_iter(&self) -> impl Iterator + use<> { + pub(crate) fn universal_regions_iter(&self) -> impl Iterator + 'static { (FIRST_GLOBAL_INDEX..self.num_universals).map(RegionVid::from_usize) } @@ -332,9 +332,9 @@ impl<'tcx> UniversalRegions<'tcx> { } /// Gets an iterator over all the early-bound regions that have names. - pub(crate) fn named_universal_regions_iter<'s>( - &'s self, - ) -> impl Iterator, ty::RegionVid)> + 's { + pub(crate) fn named_universal_regions_iter( + &self, + ) -> impl Iterator, ty::RegionVid)> { self.indices.indices.iter().map(|(&r, &v)| (r, v)) } diff --git a/compiler/rustc_const_eval/src/interpret/intern.rs b/compiler/rustc_const_eval/src/interpret/intern.rs index e14cc1dad363..43631330f89b 100644 --- a/compiler/rustc_const_eval/src/interpret/intern.rs +++ b/compiler/rustc_const_eval/src/interpret/intern.rs @@ -61,8 +61,8 @@ impl HasStaticRootDefId for const_eval::CompileTimeMachine<'_> { /// already mutable (as a sanity check). /// /// Returns an iterator over all relocations referred to by this allocation. -fn intern_shallow<'rt, 'tcx, T, M: CompileTimeMachine<'tcx, T>>( - ecx: &'rt mut InterpCx<'tcx, M>, +fn intern_shallow<'tcx, T, M: CompileTimeMachine<'tcx, T>>( + ecx: &mut InterpCx<'tcx, M>, alloc_id: AllocId, mutability: Mutability, ) -> Result + 'tcx, ()> { diff --git a/compiler/rustc_data_structures/src/graph/implementation/mod.rs b/compiler/rustc_data_structures/src/graph/implementation/mod.rs index 7724e9347d82..a80365938b96 100644 --- a/compiler/rustc_data_structures/src/graph/implementation/mod.rs +++ b/compiler/rustc_data_structures/src/graph/implementation/mod.rs @@ -193,11 +193,11 @@ impl Graph { AdjacentEdges { graph: self, direction, next: first_edge } } - pub fn successor_nodes(&self, source: NodeIndex) -> impl Iterator + '_ { + pub fn successor_nodes(&self, source: NodeIndex) -> impl Iterator { self.outgoing_edges(source).targets() } - pub fn predecessor_nodes(&self, target: NodeIndex) -> impl Iterator + '_ { + pub fn predecessor_nodes(&self, target: NodeIndex) -> impl Iterator { self.incoming_edges(target).sources() } @@ -255,11 +255,11 @@ pub struct AdjacentEdges<'g, N, E> { } impl<'g, N: Debug, E: Debug> AdjacentEdges<'g, N, E> { - fn targets(self) -> impl Iterator + 'g { + fn targets(self) -> impl Iterator { self.map(|(_, edge)| edge.target) } - fn sources(self) -> impl Iterator + 'g { + fn sources(self) -> impl Iterator { self.map(|(_, edge)| edge.source) } } diff --git a/compiler/rustc_data_structures/src/graph/scc/mod.rs b/compiler/rustc_data_structures/src/graph/scc/mod.rs index 2241b538738c..e7c4ea3daae4 100644 --- a/compiler/rustc_data_structures/src/graph/scc/mod.rs +++ b/compiler/rustc_data_structures/src/graph/scc/mod.rs @@ -133,7 +133,7 @@ impl Sccs { /// meaning that if `S1 -> S2`, we will visit `S2` first and `S1` after. /// This is convenient when the edges represent dependencies: when you visit /// `S1`, the value for `S2` will already have been computed. - pub fn all_sccs(&self) -> impl Iterator + use { + pub fn all_sccs(&self) -> impl Iterator + 'static { (0..self.scc_data.len()).map(S::new) } diff --git a/compiler/rustc_data_structures/src/sorted_map/index_map.rs b/compiler/rustc_data_structures/src/sorted_map/index_map.rs index e9a5fb519754..1654867739f0 100644 --- a/compiler/rustc_data_structures/src/sorted_map/index_map.rs +++ b/compiler/rustc_data_structures/src/sorted_map/index_map.rs @@ -84,7 +84,7 @@ impl SortedIndexMultiMap { /// If there are multiple items that are equivalent to `key`, they will be yielded in /// insertion order. #[inline] - pub fn get_by_key(&self, key: K) -> impl Iterator + '_ { + pub fn get_by_key(&self, key: K) -> impl Iterator { self.get_by_key_enumerated(key).map(|(_, v)| v) } @@ -94,7 +94,7 @@ impl SortedIndexMultiMap { /// If there are multiple items that are equivalent to `key`, they will be yielded in /// insertion order. #[inline] - pub fn get_by_key_enumerated(&self, key: K) -> impl Iterator + '_ { + pub fn get_by_key_enumerated(&self, key: K) -> impl Iterator { let lower_bound = self.idx_sorted_by_item_key.partition_point(|&i| self.items[i].0 < key); self.idx_sorted_by_item_key[lower_bound..].iter().map_while(move |&i| { let (k, v) = &self.items[i]; diff --git a/compiler/rustc_data_structures/src/sso/map.rs b/compiler/rustc_data_structures/src/sso/map.rs index 3200249a2dc4..827c82fa46a1 100644 --- a/compiler/rustc_data_structures/src/sso/map.rs +++ b/compiler/rustc_data_structures/src/sso/map.rs @@ -165,7 +165,7 @@ impl SsoHashMap { /// Clears the map, returning all key-value pairs as an iterator. Keeps the /// allocated memory for reuse. - pub fn drain(&mut self) -> impl Iterator + '_ { + pub fn drain(&mut self) -> impl Iterator { match self { SsoHashMap::Array(array) => Either::Left(array.drain(..)), SsoHashMap::Map(map) => Either::Right(map.drain()), diff --git a/compiler/rustc_data_structures/src/sso/set.rs b/compiler/rustc_data_structures/src/sso/set.rs index a4b40138933d..e3fa1cbf4cc5 100644 --- a/compiler/rustc_data_structures/src/sso/set.rs +++ b/compiler/rustc_data_structures/src/sso/set.rs @@ -80,7 +80,7 @@ impl SsoHashSet { /// Clears the set, returning all elements in an iterator. #[inline] - pub fn drain(&mut self) -> impl Iterator + '_ { + pub fn drain(&mut self) -> impl Iterator { self.map.drain().map(entry_to_key) } } diff --git a/compiler/rustc_data_structures/src/sync/vec.rs b/compiler/rustc_data_structures/src/sync/vec.rs index 21ec5cf6c13b..afbb0cef9f95 100644 --- a/compiler/rustc_data_structures/src/sync/vec.rs +++ b/compiler/rustc_data_structures/src/sync/vec.rs @@ -45,14 +45,14 @@ impl AppendOnlyVec { self.vec.read().get(i).copied() } - pub fn iter_enumerated(&self) -> impl Iterator + '_ { + pub fn iter_enumerated(&self) -> impl Iterator { (0..) .map(|i| (i, self.get(i))) .take_while(|(_, o)| o.is_some()) .filter_map(|(i, o)| Some((i, o?))) } - pub fn iter(&self) -> impl Iterator + '_ { + pub fn iter(&self) -> impl Iterator { (0..).map(|i| self.get(i)).take_while(|o| o.is_some()).flatten() } } diff --git a/compiler/rustc_data_structures/src/transitive_relation.rs b/compiler/rustc_data_structures/src/transitive_relation.rs index e81ebb9a4be2..33ac279f3e0a 100644 --- a/compiler/rustc_data_structures/src/transitive_relation.rs +++ b/compiler/rustc_data_structures/src/transitive_relation.rs @@ -363,7 +363,7 @@ impl TransitiveRelation { /// Lists all the base edges in the graph: the initial _non-transitive_ set of element /// relations, which will be later used as the basis for the transitive closure computation. - pub fn base_edges(&self) -> impl Iterator + '_ { + pub fn base_edges(&self) -> impl Iterator { self.edges .iter() .map(move |edge| (self.elements[edge.source.0], self.elements[edge.target.0])) diff --git a/compiler/rustc_expand/src/proc_macro.rs b/compiler/rustc_expand/src/proc_macro.rs index 814d2b04d8d0..a6cdeaee176f 100644 --- a/compiler/rustc_expand/src/proc_macro.rs +++ b/compiler/rustc_expand/src/proc_macro.rs @@ -31,7 +31,7 @@ impl pm::bridge::server::MessagePipe for MessagePipe { } } -fn exec_strategy(ecx: &ExtCtxt<'_>) -> impl pm::bridge::server::ExecutionStrategy + use<> { +fn exec_strategy(ecx: &ExtCtxt<'_>) -> impl pm::bridge::server::ExecutionStrategy + 'static { pm::bridge::server::MaybeCrossThread::>::new( ecx.sess.opts.unstable_opts.proc_macro_execution_strategy == ProcMacroExecutionStrategy::CrossThread, diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs index 08a0a5225e74..c4c309e77e19 100644 --- a/compiler/rustc_hir/src/definitions.rs +++ b/compiler/rustc_hir/src/definitions.rs @@ -93,7 +93,7 @@ impl DefPathTable { pub fn enumerated_keys_and_path_hashes( &self, - ) -> impl Iterator + ExactSizeIterator + '_ { + ) -> impl Iterator + ExactSizeIterator { self.index_to_key .iter_enumerated() .map(move |(index, key)| (index, key, self.def_path_hash(index))) diff --git a/compiler/rustc_hir/src/lang_items.rs b/compiler/rustc_hir/src/lang_items.rs index 34c0837b25a5..f5626937ec45 100644 --- a/compiler/rustc_hir/src/lang_items.rs +++ b/compiler/rustc_hir/src/lang_items.rs @@ -60,7 +60,7 @@ impl LanguageItems { self.reverse_items.get(&def_id).copied() } - pub fn iter(&self) -> impl Iterator + '_ { + pub fn iter(&self) -> impl Iterator { self.items .iter() .enumerate() diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index 5bb77c096dcf..1a89c9dedc52 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -20,7 +20,6 @@ use std::ops::Bound; use rustc_abi::ExternAbi; use rustc_ast::Recovered; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashSet, FxIndexMap}; use rustc_data_structures::unord::UnordMap; use rustc_errors::{ @@ -1690,10 +1689,10 @@ fn polarity_of_impl( /// the lifetimes that are declared. For fns or methods, we have to /// screen out those that do not appear in any where-clauses etc using /// `resolve_lifetime::early_bound_lifetimes`. -fn early_bound_lifetimes_from_generics<'a, 'tcx: 'a>( +fn early_bound_lifetimes_from_generics<'a, 'tcx>( tcx: TyCtxt<'tcx>, generics: &'a hir::Generics<'a>, -) -> impl Iterator> + Captures<'tcx> { +) -> impl Iterator> { generics.params.iter().filter(move |param| match param.kind { GenericParamKind::Lifetime { .. } => !tcx.is_late_bound(param.hir_id), _ => false, diff --git a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs index fee3c6088ede..efd65ba3cc40 100644 --- a/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs +++ b/compiler/rustc_hir_analysis/src/collect/resolve_bound_vars.rs @@ -160,7 +160,7 @@ enum Scope<'a> { impl<'a> Scope<'a> { // A helper for debugging scopes without printing parent scopes - fn debug_truncated(&'a self) -> impl fmt::Debug + 'a { + fn debug_truncated(&self) -> impl fmt::Debug { fmt::from_fn(move |f| match self { Self::Binder { bound_vars, scope_type, hir_id, where_bound_origin, s: _ } => f .debug_struct("Binder") @@ -2159,10 +2159,7 @@ impl<'a, 'tcx> BoundVarContext<'a, 'tcx> { /// Walk the generics of the item for a trait bound whose self type /// corresponds to the expected res, and return the trait def id. - fn for_each_trait_bound_on_res( - &self, - expected_res: Res, - ) -> impl Iterator + use<'tcx, '_> { + fn for_each_trait_bound_on_res(&self, expected_res: Res) -> impl Iterator { std::iter::from_coroutine( #[coroutine] move || { diff --git a/compiler/rustc_index/src/bit_set.rs b/compiler/rustc_index/src/bit_set.rs index d7d90ea16e49..6dc044a6d380 100644 --- a/compiler/rustc_index/src/bit_set.rs +++ b/compiler/rustc_index/src/bit_set.rs @@ -1666,7 +1666,7 @@ impl SparseBitMatrix { /// Iterates through all the columns set to true in a given row of /// the matrix. - pub fn iter(&self, row: R) -> impl Iterator + '_ { + pub fn iter(&self, row: R) -> impl Iterator { self.row(row).into_iter().flat_map(|r| r.iter()) } diff --git a/compiler/rustc_index/src/interval.rs b/compiler/rustc_index/src/interval.rs index a3d87f59567f..0225c5c4f329 100644 --- a/compiler/rustc_index/src/interval.rs +++ b/compiler/rustc_index/src/interval.rs @@ -51,7 +51,7 @@ impl IntervalSet { self.map.clear(); } - pub fn iter(&self) -> impl Iterator + '_ + pub fn iter(&self) -> impl Iterator where I: Step, { @@ -59,7 +59,7 @@ impl IntervalSet { } /// Iterates through intervals stored in the set, in order. - pub fn iter_intervals(&self) -> impl Iterator> + '_ + pub fn iter_intervals(&self) -> impl Iterator> where I: Step, { diff --git a/compiler/rustc_index/src/slice.rs b/compiler/rustc_index/src/slice.rs index 956d32c9a694..4636f294f13b 100644 --- a/compiler/rustc_index/src/slice.rs +++ b/compiler/rustc_index/src/slice.rs @@ -63,9 +63,7 @@ impl IndexSlice { } #[inline] - pub fn iter_enumerated( - &self, - ) -> impl DoubleEndedIterator + ExactSizeIterator + '_ { + pub fn iter_enumerated(&self) -> impl DoubleEndedIterator + ExactSizeIterator { self.raw.iter().enumerate().map(|(n, t)| (I::new(n), t)) } @@ -84,7 +82,7 @@ impl IndexSlice { #[inline] pub fn iter_enumerated_mut( &mut self, - ) -> impl DoubleEndedIterator + ExactSizeIterator + '_ { + ) -> impl DoubleEndedIterator + ExactSizeIterator { self.raw.iter_mut().enumerate().map(|(n, t)| (I::new(n), t)) } diff --git a/compiler/rustc_index/src/vec.rs b/compiler/rustc_index/src/vec.rs index 1cb8bc861af9..7f3f3ead5f2a 100644 --- a/compiler/rustc_index/src/vec.rs +++ b/compiler/rustc_index/src/vec.rs @@ -132,7 +132,7 @@ impl IndexVec { } #[inline] - pub fn drain>(&mut self, range: R) -> impl Iterator + '_ { + pub fn drain>(&mut self, range: R) -> impl Iterator { self.raw.drain(range) } @@ -140,7 +140,7 @@ impl IndexVec { pub fn drain_enumerated>( &mut self, range: R, - ) -> impl Iterator + '_ { + ) -> impl Iterator { let begin = match range.start_bound() { std::ops::Bound::Included(i) => *i, std::ops::Bound::Excluded(i) => i.checked_add(1).unwrap(), diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index 23f63af778d0..8a61631c69c0 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -10,7 +10,6 @@ use std::fmt::Debug; use std::iter; -use rustc_data_structures::captures::Captures; use rustc_index::{Idx, IndexVec}; use rustc_middle::arena::ArenaAllocatable; use rustc_middle::mir::ConstraintCategory; @@ -541,13 +540,13 @@ impl<'tcx> InferCtxt<'tcx> { /// Converts the region constraints resulting from a query into an /// iterator of obligations. - fn query_outlives_constraints_into_obligations<'a>( - &'a self, - cause: &'a ObligationCause<'tcx>, + fn query_outlives_constraints_into_obligations( + &self, + cause: &ObligationCause<'tcx>, param_env: ty::ParamEnv<'tcx>, - uninstantiated_region_constraints: &'a [QueryOutlivesConstraint<'tcx>], - result_args: &'a CanonicalVarValues<'tcx>, - ) -> impl Iterator> + 'a + Captures<'tcx> { + uninstantiated_region_constraints: &[QueryOutlivesConstraint<'tcx>], + result_args: &CanonicalVarValues<'tcx>, + ) -> impl Iterator> { uninstantiated_region_constraints.iter().map(move |&constraint| { let predicate = instantiate_value(self.tcx, result_args, constraint); self.query_outlives_constraint_to_obligation(predicate, cause.clone(), param_env) diff --git a/compiler/rustc_infer/src/infer/free_regions.rs b/compiler/rustc_infer/src/infer/free_regions.rs index 5452ba67497b..8fa5361121c6 100644 --- a/compiler/rustc_infer/src/infer/free_regions.rs +++ b/compiler/rustc_infer/src/infer/free_regions.rs @@ -38,7 +38,7 @@ pub struct FreeRegionMap<'tcx> { } impl<'tcx> FreeRegionMap<'tcx> { - pub fn elements(&self) -> impl Iterator> + '_ { + pub fn elements(&self) -> impl Iterator> { self.relation.elements().copied() } diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index de49c246c155..537e8119adaf 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -15,7 +15,6 @@ use region_constraints::{ }; pub use relate::StructurallyRelateAliases; pub use relate::combine::PredicateEmittingRelation; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashSet, FxIndexMap}; use rustc_data_structures::undo_log::{Rollback, UndoLogs}; use rustc_data_structures::unify as ut; @@ -233,7 +232,7 @@ impl<'tcx> InferCtxtInner<'tcx> { // while looping through this. pub fn iter_opaque_types( &self, - ) -> impl Iterator, ty::OpaqueHiddenType<'tcx>)> + '_ { + ) -> impl Iterator, ty::OpaqueHiddenType<'tcx>)> { self.opaque_type_storage.opaque_types.iter().map(|(&k, &v)| (k, v)) } } @@ -1295,9 +1294,7 @@ impl<'tcx> InferCtxt<'tcx> { /// The returned function is used in a fast path. If it returns `true` the variable is /// unchanged, `false` indicates that the status is unknown. #[inline] - pub fn is_ty_infer_var_definitely_unchanged<'a>( - &'a self, - ) -> (impl Fn(TyOrConstInferVar) -> bool + Captures<'tcx> + 'a) { + pub fn is_ty_infer_var_definitely_unchanged(&self) -> impl Fn(TyOrConstInferVar) -> bool { // This hoists the borrow/release out of the loop body. let inner = self.inner.try_borrow(); diff --git a/compiler/rustc_infer/src/infer/outlives/mod.rs b/compiler/rustc_infer/src/infer/outlives/mod.rs index 1afe50e336da..2a4544c1140d 100644 --- a/compiler/rustc_infer/src/infer/outlives/mod.rs +++ b/compiler/rustc_infer/src/infer/outlives/mod.rs @@ -20,7 +20,7 @@ pub(crate) mod verify; #[instrument(level = "debug", skip(param_env), ret)] pub fn explicit_outlives_bounds<'tcx>( param_env: ty::ParamEnv<'tcx>, -) -> impl Iterator> + 'tcx { +) -> impl Iterator> { param_env .caller_bounds() .into_iter() diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs index c63ab77decac..bf18845a0830 100644 --- a/compiler/rustc_lexer/src/lib.rs +++ b/compiler/rustc_lexer/src/lib.rs @@ -291,7 +291,7 @@ pub fn validate_raw_str(input: &str, prefix_len: u32) -> Result<(), RawStrError> } /// Creates an iterator that produces tokens from the input string. -pub fn tokenize(input: &str) -> impl Iterator + '_ { +pub fn tokenize(input: &str) -> impl Iterator { let mut cursor = Cursor::new(input); std::iter::from_fn(move || { let token = cursor.advance_token(); diff --git a/compiler/rustc_lint/src/context.rs b/compiler/rustc_lint/src/context.rs index c74158102c7a..74663e6b4bbe 100644 --- a/compiler/rustc_lint/src/context.rs +++ b/compiler/rustc_lint/src/context.rs @@ -139,9 +139,7 @@ impl LintStore { &self.lints } - pub fn get_lint_groups<'t>( - &'t self, - ) -> impl Iterator, bool)> + 't { + pub fn get_lint_groups(&self) -> impl Iterator, bool)> { self.lint_groups .iter() .filter(|(_, LintGroup { depr, .. })| { diff --git a/compiler/rustc_metadata/src/rmeta/decoder.rs b/compiler/rustc_metadata/src/rmeta/decoder.rs index e8dcda875e67..0604892e34d5 100644 --- a/compiler/rustc_metadata/src/rmeta/decoder.rs +++ b/compiler/rustc_metadata/src/rmeta/decoder.rs @@ -8,7 +8,6 @@ use std::{io, iter, mem}; pub(super) use cstore_impl::provide; use proc_macro::bridge::client::ProcMacro; use rustc_ast as ast; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxIndexMap; use rustc_data_structures::owned_slice::OwnedSlice; @@ -963,14 +962,14 @@ impl CrateRoot { pub(crate) fn decode_crate_deps<'a>( &self, metadata: &'a MetadataBlob, - ) -> impl ExactSizeIterator + Captures<'a> { + ) -> impl ExactSizeIterator { self.crate_deps.decode(metadata) } pub(crate) fn decode_target_modifiers<'a>( &self, metadata: &'a MetadataBlob, - ) -> impl ExactSizeIterator + Captures<'a> { + ) -> impl ExactSizeIterator { self.target_modifiers.decode(metadata) } } @@ -1276,7 +1275,7 @@ impl<'a> CrateMetadataRef<'a> { self, id: DefIndex, sess: &'a Session, - ) -> impl Iterator + 'a { + ) -> impl Iterator { iter::from_coroutine( #[coroutine] move || { @@ -1326,10 +1325,7 @@ impl<'a> CrateMetadataRef<'a> { .is_some_and(|ident| ident.name == kw::SelfLower) } - fn get_associated_item_or_field_def_ids( - self, - id: DefIndex, - ) -> impl Iterator + 'a { + fn get_associated_item_or_field_def_ids(self, id: DefIndex) -> impl Iterator { self.root .tables .associated_item_or_field_def_ids @@ -1380,7 +1376,7 @@ impl<'a> CrateMetadataRef<'a> { self, id: DefIndex, sess: &'a Session, - ) -> impl Iterator + 'a { + ) -> impl Iterator { self.root .tables .attributes @@ -1417,12 +1413,12 @@ impl<'a> CrateMetadataRef<'a> { } /// Decodes all traits in the crate (for rustdoc and rustc diagnostics). - fn get_traits(self) -> impl Iterator + 'a { + fn get_traits(self) -> impl Iterator { self.root.traits.decode(self).map(move |index| self.local_def_id(index)) } /// Decodes all trait impls in the crate (for rustdoc). - fn get_trait_impls(self) -> impl Iterator + 'a { + fn get_trait_impls(self) -> impl Iterator { self.cdata.trait_impls.values().flat_map(move |impls| { impls.decode(self).map(move |(impl_index, _)| self.local_def_id(impl_index)) }) @@ -1463,7 +1459,7 @@ impl<'a> CrateMetadataRef<'a> { } } - fn get_native_libraries(self, sess: &'a Session) -> impl Iterator + 'a { + fn get_native_libraries(self, sess: &'a Session) -> impl Iterator { self.root.native_libraries.decode((self, sess)) } @@ -1476,7 +1472,7 @@ impl<'a> CrateMetadataRef<'a> { .decode((self, sess)) } - fn get_foreign_modules(self, sess: &'a Session) -> impl Iterator + 'a { + fn get_foreign_modules(self, sess: &'a Session) -> impl Iterator { self.root.foreign_modules.decode((self, sess)) } @@ -1816,7 +1812,7 @@ impl<'a> CrateMetadataRef<'a> { .decode(self) } - fn get_doc_link_traits_in_scope(self, index: DefIndex) -> impl Iterator + 'a { + fn get_doc_link_traits_in_scope(self, index: DefIndex) -> impl Iterator { self.root .tables .doc_link_traits_in_scope @@ -1887,7 +1883,7 @@ impl CrateMetadata { cdata } - pub(crate) fn dependencies(&self) -> impl Iterator + '_ { + pub(crate) fn dependencies(&self) -> impl Iterator { self.dependencies.iter().copied() } diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index 40dd6aa73fd4..7d632f592aff 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -174,15 +174,12 @@ impl<'tcx> TyCtxt<'tcx> { } #[inline] - pub fn hir_free_items(self) -> impl Iterator + 'tcx { + pub fn hir_free_items(self) -> impl Iterator { self.hir_crate_items(()).free_items.iter().copied() } #[inline] - pub fn hir_module_free_items( - self, - module: LocalModDefId, - ) -> impl Iterator + 'tcx { + pub fn hir_module_free_items(self, module: LocalModDefId) -> impl Iterator { self.hir_module_items(module).free_items() } @@ -283,7 +280,7 @@ impl<'tcx> TyCtxt<'tcx> { }) } - pub fn hir_body_param_names(self, id: BodyId) -> impl Iterator + 'tcx { + pub fn hir_body_param_names(self, id: BodyId) -> impl Iterator { self.hir_body(id).params.iter().map(|arg| match arg.pat.kind { PatKind::Binding(_, _, ident, _) => ident, _ => Ident::empty(), @@ -337,7 +334,7 @@ impl<'tcx> TyCtxt<'tcx> { /// crate. If you would prefer to iterate over the bodies /// themselves, you can do `self.hir().krate().body_ids.iter()`. #[inline] - pub fn hir_body_owners(self) -> impl Iterator + 'tcx { + pub fn hir_body_owners(self) -> impl Iterator { self.hir_crate_items(()).body_owners.iter().copied() } @@ -502,7 +499,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Returns an iterator for the nodes in the ancestor tree of the `current_id` /// until the crate root is reached. Prefer this over your own loop using `parent_id`. #[inline] - pub fn hir_parent_id_iter(self, current_id: HirId) -> impl Iterator + 'tcx { + pub fn hir_parent_id_iter(self, current_id: HirId) -> impl Iterator { ParentHirIterator::new(self, current_id) } diff --git a/compiler/rustc_middle/src/hir/mod.rs b/compiler/rustc_middle/src/hir/mod.rs index 2a201e230155..6071a58367ed 100644 --- a/compiler/rustc_middle/src/hir/mod.rs +++ b/compiler/rustc_middle/src/hir/mod.rs @@ -40,25 +40,25 @@ impl ModuleItems { /// include foreign items. If you want to e.g. get all functions, use `definitions()` below. /// /// However, this does include the `impl` blocks themselves. - pub fn free_items(&self) -> impl Iterator + '_ { + pub fn free_items(&self) -> impl Iterator { self.free_items.iter().copied() } - pub fn trait_items(&self) -> impl Iterator + '_ { + pub fn trait_items(&self) -> impl Iterator { self.trait_items.iter().copied() } /// Returns all items that are associated with some `impl` block (both inherent and trait impl /// blocks). - pub fn impl_items(&self) -> impl Iterator + '_ { + pub fn impl_items(&self) -> impl Iterator { self.impl_items.iter().copied() } - pub fn foreign_items(&self) -> impl Iterator + '_ { + pub fn foreign_items(&self) -> impl Iterator { self.foreign_items.iter().copied() } - pub fn owners(&self) -> impl Iterator + '_ { + pub fn owners(&self) -> impl Iterator { self.free_items .iter() .map(|id| id.owner_id) @@ -67,15 +67,15 @@ impl ModuleItems { .chain(self.foreign_items.iter().map(|id| id.owner_id)) } - pub fn opaques(&self) -> impl Iterator + '_ { + pub fn opaques(&self) -> impl Iterator { self.opaques.iter().copied() } - pub fn nested_bodies(&self) -> impl Iterator + '_ { + pub fn nested_bodies(&self) -> impl Iterator { self.nested_bodies.iter().copied() } - pub fn definitions(&self) -> impl Iterator + '_ { + pub fn definitions(&self) -> impl Iterator { self.owners().map(|id| id.def_id) } diff --git a/compiler/rustc_middle/src/hir/place.rs b/compiler/rustc_middle/src/hir/place.rs index 66b701523b71..316ad80eb985 100644 --- a/compiler/rustc_middle/src/hir/place.rs +++ b/compiler/rustc_middle/src/hir/place.rs @@ -97,7 +97,7 @@ impl<'tcx> Place<'tcx> { /// The types are in the reverse order that they are applied. So if /// `x: &*const u32` and the `Place` is `**x`, then the types returned are ///`*const u32` then `&*const u32`. - pub fn deref_tys(&self) -> impl Iterator> + '_ { + pub fn deref_tys(&self) -> impl Iterator> { self.projections.iter().enumerate().rev().filter_map(move |(index, proj)| { if ProjectionKind::Deref == proj.kind { Some(self.ty_before_projection(index)) diff --git a/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs b/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs index 78196b053619..2f13f9635785 100644 --- a/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs +++ b/compiler/rustc_middle/src/mir/interpret/allocation/provenance_map.rs @@ -121,7 +121,7 @@ impl ProvenanceMap { } /// Yields all the provenances stored in this map. - pub fn provenances(&self) -> impl Iterator + '_ { + pub fn provenances(&self) -> impl Iterator { let bytes = self.bytes.iter().flat_map(|b| b.values()); self.ptrs.values().chain(bytes).copied() } diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index 227cb97c76b5..cf90df1b198b 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -12,7 +12,6 @@ use either::Either; use polonius_engine::Atom; use rustc_abi::{FieldIdx, VariantIdx}; pub use rustc_ast::Mutability; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashMap, FxHashSet}; use rustc_data_structures::graph::dominators::Dominators; use rustc_errors::{DiagArgName, DiagArgValue, DiagMessage, ErrorGuaranteed, IntoDiagArg}; @@ -472,7 +471,7 @@ impl<'tcx> Body<'tcx> { /// Returns an iterator over all user-declared mutable locals. #[inline] - pub fn mut_vars_iter<'a>(&'a self) -> impl Iterator + Captures<'tcx> + 'a { + pub fn mut_vars_iter(&self) -> impl Iterator { (self.arg_count + 1..self.local_decls.len()).filter_map(move |index| { let local = Local::new(index); let decl = &self.local_decls[local]; @@ -482,9 +481,7 @@ impl<'tcx> Body<'tcx> { /// Returns an iterator over all user-declared mutable arguments and locals. #[inline] - pub fn mut_vars_and_args_iter<'a>( - &'a self, - ) -> impl Iterator + Captures<'tcx> + 'a { + pub fn mut_vars_and_args_iter(&self) -> impl Iterator { (1..self.local_decls.len()).filter_map(move |index| { let local = Local::new(index); let decl = &self.local_decls[local]; @@ -514,7 +511,7 @@ impl<'tcx> Body<'tcx> { } #[inline] - pub fn drain_vars_and_temps<'a>(&'a mut self) -> impl Iterator> + 'a { + pub fn drain_vars_and_temps(&mut self) -> impl Iterator> { self.local_decls.drain(self.arg_count + 1..) } diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 1d61cf48ad26..875f5282bf29 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -1523,7 +1523,7 @@ pub fn write_allocations<'tcx>( ) -> io::Result<()> { fn alloc_ids_from_alloc( alloc: ConstAllocation<'_>, - ) -> impl DoubleEndedIterator + '_ { + ) -> impl DoubleEndedIterator { alloc.inner().provenance().ptrs().values().map(|p| p.alloc_id()) } diff --git a/compiler/rustc_middle/src/ty/adt.rs b/compiler/rustc_middle/src/ty/adt.rs index b529d17540a8..3585f28b4a55 100644 --- a/compiler/rustc_middle/src/ty/adt.rs +++ b/compiler/rustc_middle/src/ty/adt.rs @@ -4,7 +4,6 @@ use std::ops::Range; use std::str; use rustc_abi::{FIRST_VARIANT, ReprOptions, VariantIdx}; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fingerprint::Fingerprint; use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::intern::Interned; @@ -540,7 +539,7 @@ impl<'tcx> AdtDef<'tcx> { pub fn discriminants( self, tcx: TyCtxt<'tcx>, - ) -> impl Iterator)> + Captures<'tcx> { + ) -> impl Iterator)> { assert!(self.is_enum()); let repr_type = self.repr().discr_type(); let initial = repr_type.initial_discriminant(tcx); diff --git a/compiler/rustc_middle/src/ty/closure.rs b/compiler/rustc_middle/src/ty/closure.rs index c4d5367e2f03..3605f2402e7f 100644 --- a/compiler/rustc_middle/src/ty/closure.rs +++ b/compiler/rustc_middle/src/ty/closure.rs @@ -1,6 +1,5 @@ use std::fmt::Write; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxIndexMap; use rustc_hir as hir; use rustc_hir::HirId; @@ -415,7 +414,7 @@ pub fn analyze_coroutine_closure_captures<'a, 'tcx: 'a, T>( parent_captures: impl IntoIterator>, child_captures: impl IntoIterator>, mut for_each: impl FnMut((usize, &'a CapturedPlace<'tcx>), (usize, &'a CapturedPlace<'tcx>)) -> T, -) -> impl Iterator + Captures<'a> + Captures<'tcx> { +) -> impl Iterator { std::iter::from_coroutine( #[coroutine] move || { diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 32a9e67f9ad5..d20e8bd42e69 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -1939,7 +1939,7 @@ impl<'tcx> TyCtxt<'tcx> { Ok(TyCtxtFeed { key: num, tcx: self }) } - pub fn iter_local_def_id(self) -> impl Iterator + 'tcx { + pub fn iter_local_def_id(self) -> impl Iterator { // Create a dependency to the red node to be sure we re-execute this when the amount of // definitions change. self.dep_graph.read_index(DepNodeIndex::FOREVER_RED_NODE); @@ -2171,14 +2171,14 @@ impl<'tcx> TyCtxt<'tcx> { } /// All traits in the crate graph, including those not visible to the user. - pub fn all_traits(self) -> impl Iterator + 'tcx { + pub fn all_traits(self) -> impl Iterator { iter::once(LOCAL_CRATE) .chain(self.crates(()).iter().copied()) .flat_map(move |cnum| self.traits(cnum).iter().copied()) } /// All traits that are visible within the crate graph (i.e. excluding private dependencies). - pub fn visible_traits(self) -> impl Iterator + 'tcx { + pub fn visible_traits(self) -> impl Iterator { let visible_crates = self.crates(()).iter().copied().filter(move |cnum| self.is_user_visible_dep(*cnum)); @@ -2363,7 +2363,7 @@ macro_rules! sty_debug_print { } impl<'tcx> TyCtxt<'tcx> { - pub fn debug_stats(self) -> impl fmt::Debug + 'tcx { + pub fn debug_stats(self) -> impl fmt::Debug { fmt::from_fn(move |fmt| { sty_debug_print!( fmt, diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index b74ddb817103..ed0b3059d752 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -479,25 +479,23 @@ impl<'tcx> GenericArgs<'tcx> { } #[inline] - pub fn types(&'tcx self) -> impl DoubleEndedIterator> + 'tcx { + pub fn types(&self) -> impl DoubleEndedIterator> { self.iter().filter_map(|k| k.as_type()) } #[inline] - pub fn regions(&'tcx self) -> impl DoubleEndedIterator> + 'tcx { + pub fn regions(&self) -> impl DoubleEndedIterator> { self.iter().filter_map(|k| k.as_region()) } #[inline] - pub fn consts(&'tcx self) -> impl DoubleEndedIterator> + 'tcx { + pub fn consts(&self) -> impl DoubleEndedIterator> { self.iter().filter_map(|k| k.as_const()) } /// Returns generic arguments that are not lifetimes. #[inline] - pub fn non_erasable_generics( - &'tcx self, - ) -> impl DoubleEndedIterator> + 'tcx { + pub fn non_erasable_generics(&self) -> impl DoubleEndedIterator> { self.iter().filter_map(|k| match k.unpack() { ty::GenericArgKind::Lifetime(_) => None, generic => Some(generic), diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index bd1fb0ca41cf..8ed5a118093f 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -1798,14 +1798,11 @@ impl<'tcx> TyCtxt<'tcx> { } } - pub fn get_attrs_by_path<'attr>( + pub fn get_attrs_by_path( self, did: DefId, - attr: &'attr [Symbol], - ) -> impl Iterator + 'attr - where - 'tcx: 'attr, - { + attr: &[Symbol], + ) -> impl Iterator { let filter_fn = move |a: &&hir::Attribute| a.path_matches(attr); if let Some(did) = did.as_local() { self.hir().attrs(self.local_def_id_to_hir_id(did)).iter().filter(filter_fn) diff --git a/compiler/rustc_middle/src/ty/predicate.rs b/compiler/rustc_middle/src/ty/predicate.rs index 584cac22ae8d..553de83dfcb4 100644 --- a/compiler/rustc_middle/src/ty/predicate.rs +++ b/compiler/rustc_middle/src/ty/predicate.rs @@ -1,6 +1,5 @@ use std::cmp::Ordering; -use rustc_data_structures::captures::Captures; use rustc_data_structures::intern::Interned; use rustc_hir::def_id::DefId; use rustc_macros::{HashStable, extension}; @@ -336,9 +335,9 @@ impl<'tcx> ty::List> { } #[inline] - pub fn projection_bounds<'a>( - &'a self, - ) -> impl Iterator>> + 'a { + pub fn projection_bounds( + &self, + ) -> impl Iterator>> { self.iter().filter_map(|predicate| { predicate .map_bound(|pred| match pred { @@ -350,16 +349,14 @@ impl<'tcx> ty::List> { } #[inline] - pub fn auto_traits<'a>(&'a self) -> impl Iterator + Captures<'tcx> + 'a { + pub fn auto_traits(&self) -> impl Iterator { self.iter().filter_map(|predicate| match predicate.skip_binder() { ExistentialPredicate::AutoTrait(did) => Some(did), _ => None, }) } - pub fn without_auto_traits( - &self, - ) -> impl Iterator> + '_ { + pub fn without_auto_traits(&self) -> impl Iterator> { self.iter().filter(|predicate| { !matches!(predicate.as_ref().skip_binder(), ExistentialPredicate::AutoTrait(_)) }) diff --git a/compiler/rustc_middle/src/ty/sty.rs b/compiler/rustc_middle/src/ty/sty.rs index dd4da2cf4ac3..d5617adf26b4 100644 --- a/compiler/rustc_middle/src/ty/sty.rs +++ b/compiler/rustc_middle/src/ty/sty.rs @@ -9,7 +9,6 @@ use std::ops::{ControlFlow, Range}; use hir::def::{CtorKind, DefKind}; use rustc_abi::{ExternAbi, FIRST_VARIANT, FieldIdx, VariantIdx}; -use rustc_data_structures::captures::Captures; use rustc_errors::{ErrorGuaranteed, MultiSpan}; use rustc_hir as hir; use rustc_hir::LangItem; @@ -105,7 +104,7 @@ impl<'tcx> ty::CoroutineArgs> { self, def_id: DefId, tcx: TyCtxt<'tcx>, - ) -> impl Iterator)> + Captures<'tcx> { + ) -> impl Iterator)> { self.variant_range(def_id, tcx).map(move |index| { (index, Discr { val: index.as_usize() as u128, ty: self.discr_ty(tcx) }) }) @@ -139,7 +138,7 @@ impl<'tcx> ty::CoroutineArgs> { self, def_id: DefId, tcx: TyCtxt<'tcx>, - ) -> impl Iterator> + Captures<'tcx>> { + ) -> impl Iterator>> { let layout = tcx.coroutine_layout(def_id, self.kind_ty()).unwrap(); layout.variant_fields.iter().map(move |variant| { variant.iter().map(move |field| { diff --git a/compiler/rustc_middle/src/ty/trait_def.rs b/compiler/rustc_middle/src/ty/trait_def.rs index 17e90c15d413..8fa1c569737a 100644 --- a/compiler/rustc_middle/src/ty/trait_def.rs +++ b/compiler/rustc_middle/src/ty/trait_def.rs @@ -188,7 +188,7 @@ impl<'tcx> TyCtxt<'tcx> { self, trait_def_id: DefId, self_ty: Ty<'tcx>, - ) -> impl Iterator + 'tcx { + ) -> impl Iterator { let impls = self.trait_impls_of(trait_def_id); if let Some(simp) = fast_reject::simplify_type(self, self_ty, TreatParams::InstantiateWithInfer) @@ -204,7 +204,7 @@ impl<'tcx> TyCtxt<'tcx> { /// Returns an iterator containing all impls for `trait_def_id`. /// /// `trait_def_id` MUST BE the `DefId` of a trait. - pub fn all_impls(self, trait_def_id: DefId) -> impl Iterator + 'tcx { + pub fn all_impls(self, trait_def_id: DefId) -> impl Iterator { let TraitImpls { blanket_impls, non_blanket_impls } = self.trait_impls_of(trait_def_id); blanket_impls.iter().chain(non_blanket_impls.iter().flat_map(|(_, v)| v)).cloned() diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index b8c73d258437..d4484a16fea4 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -575,7 +575,7 @@ impl<'a, V> LocalTableInContext<'a, V> { } pub fn items( - &'a self, + &self, ) -> UnordItems<(hir::ItemLocalId, &'a V), impl Iterator> { self.data.items().map(|(id, value)| (*id, value)) diff --git a/compiler/rustc_mir_build/src/builder/expr/as_place.rs b/compiler/rustc_mir_build/src/builder/expr/as_place.rs index 308ca442b40c..581f45db6c48 100644 --- a/compiler/rustc_mir_build/src/builder/expr/as_place.rs +++ b/compiler/rustc_mir_build/src/builder/expr/as_place.rs @@ -216,11 +216,11 @@ fn to_upvars_resolved_place_builder<'tcx>( /// Supports only HIR projection kinds that represent a path that might be /// captured by a closure or a coroutine, i.e., an `Index` or a `Subslice` /// projection kinds are unsupported. -fn strip_prefix<'a, 'tcx>( +fn strip_prefix<'tcx>( mut base_ty: Ty<'tcx>, - projections: &'a [PlaceElem<'tcx>], + projections: &[PlaceElem<'tcx>], prefix_projections: &[HirProjection<'tcx>], -) -> impl Iterator> + 'a { +) -> impl Iterator> { let mut iter = projections .iter() .copied() diff --git a/compiler/rustc_mir_build/src/thir/cx/mod.rs b/compiler/rustc_mir_build/src/thir/cx/mod.rs index 7a9f6e463045..41a642f95b6e 100644 --- a/compiler/rustc_mir_build/src/thir/cx/mod.rs +++ b/compiler/rustc_mir_build/src/thir/cx/mod.rs @@ -159,12 +159,12 @@ impl<'tcx> ThirBuildCx<'tcx> { }) } - fn explicit_params<'a>( - &'a mut self, + fn explicit_params( + &mut self, owner_id: HirId, fn_decl: &'tcx hir::FnDecl<'tcx>, body: &'tcx hir::Body<'tcx>, - ) -> impl Iterator> + 'a { + ) -> impl Iterator> { let fn_sig = self.typeck_results.liberated_fn_sigs()[owner_id]; body.params.iter().enumerate().map(move |(index, param)| { diff --git a/compiler/rustc_mir_dataflow/src/move_paths/mod.rs b/compiler/rustc_mir_dataflow/src/move_paths/mod.rs index 8aea8d2ae3ca..18985ba0da25 100644 --- a/compiler/rustc_mir_dataflow/src/move_paths/mod.rs +++ b/compiler/rustc_mir_dataflow/src/move_paths/mod.rs @@ -343,7 +343,7 @@ impl<'tcx> MovePathLookup<'tcx> { /// `MovePathIndex`es. pub fn iter_locals_enumerated( &self, - ) -> impl DoubleEndedIterator + '_ { + ) -> impl DoubleEndedIterator { self.locals.iter_enumerated().filter_map(|(l, &idx)| Some((l, idx?))) } } diff --git a/compiler/rustc_mir_dataflow/src/un_derefer.rs b/compiler/rustc_mir_dataflow/src/un_derefer.rs index bb15b8106a1e..b38dd9d40f52 100644 --- a/compiler/rustc_mir_dataflow/src/un_derefer.rs +++ b/compiler/rustc_mir_dataflow/src/un_derefer.rs @@ -28,7 +28,7 @@ impl<'tcx> UnDerefer<'tcx> { pub(crate) fn iter_projections( &self, place: PlaceRef<'tcx>, - ) -> impl Iterator, PlaceElem<'tcx>)> + '_ { + ) -> impl Iterator, PlaceElem<'tcx>)> { ProjectionIter::new(self.deref_chain(place.local), place) } } diff --git a/compiler/rustc_mir_dataflow/src/value_analysis.rs b/compiler/rustc_mir_dataflow/src/value_analysis.rs index 9cba07e15a43..36fb1c2b36d0 100644 --- a/compiler/rustc_mir_dataflow/src/value_analysis.rs +++ b/compiler/rustc_mir_dataflow/src/value_analysis.rs @@ -2,7 +2,6 @@ use std::fmt::{Debug, Formatter}; use std::ops::Range; use rustc_abi::{FieldIdx, VariantIdx}; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::{FxHashMap, FxIndexSet, StdEntry}; use rustc_data_structures::stack::ensure_sufficient_stack; use rustc_index::IndexVec; @@ -676,10 +675,7 @@ impl<'tcx> Map<'tcx> { } /// Iterate over all direct children. - fn children( - &self, - parent: PlaceIndex, - ) -> impl Iterator + Captures<'_> + Captures<'tcx> { + fn children(&self, parent: PlaceIndex) -> impl Iterator { Children::new(self, parent) } diff --git a/compiler/rustc_mir_transform/src/coverage/graph.rs b/compiler/rustc_mir_transform/src/coverage/graph.rs index 6d84248ddfbd..09384defea86 100644 --- a/compiler/rustc_mir_transform/src/coverage/graph.rs +++ b/compiler/rustc_mir_transform/src/coverage/graph.rs @@ -2,7 +2,6 @@ use std::cmp::Ordering; use std::ops::{Index, IndexMut}; use std::{mem, slice}; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::graph::dominators::Dominators; use rustc_data_structures::graph::{self, DirectedGraph, StartNode}; @@ -218,7 +217,7 @@ impl CoverageGraph { pub(crate) fn reloop_predecessors( &self, to_bcb: BasicCoverageBlock, - ) -> impl Iterator + Captures<'_> { + ) -> impl Iterator { self.predecessors[to_bcb].iter().copied().filter(move |&pred| self.dominates(to_bcb, pred)) } } diff --git a/compiler/rustc_mir_transform/src/coverage/query.rs b/compiler/rustc_mir_transform/src/coverage/query.rs index ef86358b2057..58461be01f17 100644 --- a/compiler/rustc_mir_transform/src/coverage/query.rs +++ b/compiler/rustc_mir_transform/src/coverage/query.rs @@ -1,4 +1,3 @@ -use rustc_data_structures::captures::Captures; use rustc_index::bit_set::DenseBitSet; use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags; use rustc_middle::mir::coverage::{BasicCoverageBlock, CoverageIdsInfo, CoverageKind, MappingKind}; @@ -153,7 +152,7 @@ fn coverage_ids_info<'tcx>( fn all_coverage_in_mir_body<'a, 'tcx>( body: &'a Body<'tcx>, -) -> impl Iterator + Captures<'tcx> { +) -> impl Iterator { body.basic_blocks.iter().flat_map(|bb_data| &bb_data.statements).filter_map(|statement| { match statement.kind { StatementKind::Coverage(ref kind) if !is_inlined(body, statement) => Some(kind), diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs index 314a86ea52f0..b9ed6984ddb2 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans.rs @@ -1,6 +1,5 @@ use std::collections::VecDeque; -use rustc_data_structures::captures::Captures; use rustc_data_structures::fx::FxHashSet; use rustc_middle::mir; use rustc_span::{DesugaringKind, ExpnKind, MacroKind, Span}; @@ -182,7 +181,7 @@ fn divide_spans_into_buckets(input_covspans: Vec, holes: &[Hole]) -> Ve fn drain_front_while<'a, T>( queue: &'a mut VecDeque, mut pred_fn: impl FnMut(&T) -> bool, -) -> impl Iterator + Captures<'a> { +) -> impl Iterator { std::iter::from_fn(move || if pred_fn(queue.front()?) { queue.pop_front() } else { None }) } diff --git a/compiler/rustc_mir_transform/src/jump_threading.rs b/compiler/rustc_mir_transform/src/jump_threading.rs index bd310b078975..0a72a9d669fe 100644 --- a/compiler/rustc_mir_transform/src/jump_threading.rs +++ b/compiler/rustc_mir_transform/src/jump_threading.rs @@ -172,11 +172,11 @@ impl HasBottom for ConditionSet<'_> { } impl<'a> ConditionSet<'a> { - fn iter(self) -> impl Iterator + 'a { + fn iter(self) -> impl Iterator { self.0.iter().copied() } - fn iter_matches(self, value: ScalarInt) -> impl Iterator + 'a { + fn iter_matches(self, value: ScalarInt) -> impl Iterator { self.iter().filter(move |c| c.matches(value)) } diff --git a/compiler/rustc_mir_transform/src/sroa.rs b/compiler/rustc_mir_transform/src/sroa.rs index 28de99f9193d..7c6ccc89c4f3 100644 --- a/compiler/rustc_mir_transform/src/sroa.rs +++ b/compiler/rustc_mir_transform/src/sroa.rs @@ -185,7 +185,7 @@ impl<'tcx> ReplacementMap<'tcx> { fn place_fragments( &self, place: Place<'tcx>, - ) -> Option, Local)> + '_> { + ) -> Option, Local)>> { let local = place.as_local()?; let fields = self.fragments[local].as_ref()?; Some(fields.iter_enumerated().filter_map(|(field, &opt_ty_local)| { diff --git a/compiler/rustc_mir_transform/src/ssa.rs b/compiler/rustc_mir_transform/src/ssa.rs index 9f769077e77e..3d512fb064ec 100644 --- a/compiler/rustc_mir_transform/src/ssa.rs +++ b/compiler/rustc_mir_transform/src/ssa.rs @@ -138,7 +138,7 @@ impl SsaLocals { pub(super) fn assignments<'a, 'tcx>( &'a self, body: &'a Body<'tcx>, - ) -> impl Iterator, Location)> + 'a { + ) -> impl Iterator, Location)> { self.assignment_order.iter().filter_map(|&local| { if let Set1::One(DefLocation::Assignment(loc)) = self.assignments[local] { let stmt = body.stmt_at(loc).left()?; diff --git a/compiler/rustc_monomorphize/src/collector.rs b/compiler/rustc_monomorphize/src/collector.rs index 1195c25e1308..9b652cddc499 100644 --- a/compiler/rustc_monomorphize/src/collector.rs +++ b/compiler/rustc_monomorphize/src/collector.rs @@ -323,7 +323,7 @@ impl<'tcx> MonoItems<'tcx> { self.items.entry(item.node).or_insert(item.span); } - fn items(&self) -> impl Iterator> + '_ { + fn items(&self) -> impl Iterator> { self.items.keys().cloned() } } diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index bbd73dec2e47..80a33a760059 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -1657,7 +1657,7 @@ impl<'a> Parser<'a> { // Debug view of the parser's token stream, up to `{lookahead}` tokens. // Only used when debugging. #[allow(unused)] - pub(crate) fn debug_lookahead(&self, lookahead: usize) -> impl fmt::Debug + '_ { + pub(crate) fn debug_lookahead(&self, lookahead: usize) -> impl fmt::Debug { fmt::from_fn(move |f| { let mut dbg_fmt = f.debug_struct("Parser"); // or at least, one view of diff --git a/compiler/rustc_pattern_analysis/src/lib.rs b/compiler/rustc_pattern_analysis/src/lib.rs index fec44d5af55d..a3400ebb7993 100644 --- a/compiler/rustc_pattern_analysis/src/lib.rs +++ b/compiler/rustc_pattern_analysis/src/lib.rs @@ -61,11 +61,11 @@ pub trait PatCx: Sized + fmt::Debug { fn ctor_arity(&self, ctor: &Constructor, ty: &Self::Ty) -> usize; /// The types of the fields for this constructor. The result must contain `ctor_arity()` fields. - fn ctor_sub_tys<'a>( - &'a self, - ctor: &'a Constructor, - ty: &'a Self::Ty, - ) -> impl Iterator + ExactSizeIterator + Captures<'a>; + fn ctor_sub_tys( + &self, + ctor: &Constructor, + ty: &Self::Ty, + ) -> impl Iterator + ExactSizeIterator; /// The set of all the constructors for `ty`. /// diff --git a/compiler/rustc_pattern_analysis/src/pat_column.rs b/compiler/rustc_pattern_analysis/src/pat_column.rs index eb4e095c1c66..814eb8afcfc0 100644 --- a/compiler/rustc_pattern_analysis/src/pat_column.rs +++ b/compiler/rustc_pattern_analysis/src/pat_column.rs @@ -1,6 +1,6 @@ use crate::constructor::{Constructor, SplitConstructorSet}; use crate::pat::{DeconstructedPat, PatOrWild}; -use crate::{Captures, MatchArm, PatCx}; +use crate::{MatchArm, PatCx}; /// A column of patterns in a match, where a column is the intuitive notion of "subpatterns that /// inspect the same subvalue/place". @@ -41,7 +41,7 @@ impl<'p, Cx: PatCx> PatternColumn<'p, Cx> { pub fn head_ty(&self) -> Option<&Cx::Ty> { self.patterns.first().map(|pat| pat.ty()) } - pub fn iter<'a>(&'a self) -> impl Iterator> + Captures<'a> { + pub fn iter(&self) -> impl Iterator> { self.patterns.iter().copied() } diff --git a/compiler/rustc_pattern_analysis/src/rustc.rs b/compiler/rustc_pattern_analysis/src/rustc.rs index 0b1e954d64d4..88194c737a6c 100644 --- a/compiler/rustc_pattern_analysis/src/rustc.rs +++ b/compiler/rustc_pattern_analysis/src/rustc.rs @@ -25,7 +25,7 @@ use crate::lints::lint_nonexhaustive_missing_variants; use crate::pat_column::PatternColumn; use crate::rustc::print::EnumInfo; use crate::usefulness::{PlaceValidity, compute_match_usefulness}; -use crate::{Captures, PatCx, PrivateUninhabitedField, errors}; +use crate::{PatCx, PrivateUninhabitedField, errors}; mod print; @@ -175,8 +175,7 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> { &self, ty: RevealedTy<'tcx>, variant: &'tcx VariantDef, - ) -> impl Iterator)> + Captures<'p> + Captures<'_> - { + ) -> impl Iterator)> { let ty::Adt(_, args) = ty.kind() else { bug!() }; variant.fields.iter().map(move |field| { let ty = field.ty(self.tcx, args); @@ -203,13 +202,11 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> { /// Returns the types of the fields for a given constructor. The result must have a length of /// `ctor.arity()`. - pub(crate) fn ctor_sub_tys<'a>( - &'a self, - ctor: &'a Constructor<'p, 'tcx>, + pub(crate) fn ctor_sub_tys( + &self, + ctor: &Constructor<'p, 'tcx>, ty: RevealedTy<'tcx>, - ) -> impl Iterator, PrivateUninhabitedField)> - + ExactSizeIterator - + Captures<'a> { + ) -> impl Iterator, PrivateUninhabitedField)> + ExactSizeIterator { fn reveal_and_alloc<'a, 'tcx>( cx: &'a RustcPatCtxt<'_, 'tcx>, iter: impl Iterator>, @@ -936,12 +933,11 @@ impl<'p, 'tcx: 'p> PatCx for RustcPatCtxt<'p, 'tcx> { fn ctor_arity(&self, ctor: &crate::constructor::Constructor, ty: &Self::Ty) -> usize { self.ctor_arity(ctor, *ty) } - fn ctor_sub_tys<'a>( - &'a self, - ctor: &'a crate::constructor::Constructor, - ty: &'a Self::Ty, - ) -> impl Iterator + ExactSizeIterator + Captures<'a> - { + fn ctor_sub_tys( + &self, + ctor: &crate::constructor::Constructor, + ty: &Self::Ty, + ) -> impl Iterator + ExactSizeIterator { self.ctor_sub_tys(ctor, *ty) } fn ctors_for_ty( diff --git a/compiler/rustc_pattern_analysis/src/usefulness.rs b/compiler/rustc_pattern_analysis/src/usefulness.rs index 1dff76141da5..11ebbea07fa4 100644 --- a/compiler/rustc_pattern_analysis/src/usefulness.rs +++ b/compiler/rustc_pattern_analysis/src/usefulness.rs @@ -719,7 +719,7 @@ use tracing::{debug, instrument}; use self::PlaceValidity::*; use crate::constructor::{Constructor, ConstructorSet, IntRange}; use crate::pat::{DeconstructedPat, PatId, PatOrWild, WitnessPat}; -use crate::{Captures, MatchArm, PatCx, PrivateUninhabitedField}; +use crate::{MatchArm, PatCx, PrivateUninhabitedField}; #[cfg(not(feature = "rustc"))] pub fn ensure_sufficient_stack(f: impl FnOnce() -> R) -> R { f() @@ -902,11 +902,11 @@ struct PlaceInfo { impl PlaceInfo { /// Given a constructor for the current place, we return one `PlaceInfo` for each field of the /// constructor. - fn specialize<'a>( - &'a self, - cx: &'a Cx, - ctor: &'a Constructor, - ) -> impl Iterator + ExactSizeIterator + Captures<'a> { + fn specialize( + &self, + cx: &Cx, + ctor: &Constructor, + ) -> impl Iterator + ExactSizeIterator { let ctor_sub_tys = cx.ctor_sub_tys(ctor, &self.ty); let ctor_sub_validity = self.validity.specialize(ctor); ctor_sub_tys.map(move |(ty, PrivateUninhabitedField(private_uninhabited))| PlaceInfo { @@ -1046,13 +1046,13 @@ impl<'p, Cx: PatCx> PatStack<'p, Cx> { self.pats[0] } - fn iter(&self) -> impl Iterator> + Captures<'_> { + fn iter(&self) -> impl Iterator> { self.pats.iter().copied() } // Expand the first or-pattern into its subpatterns. Only useful if the pattern is an // or-pattern. Panics if `self` is empty. - fn expand_or_pat(&self) -> impl Iterator> + Captures<'_> { + fn expand_or_pat(&self) -> impl Iterator> { self.head().expand_or_pat().into_iter().map(move |pat| { let mut new = self.clone(); new.pats[0] = pat; @@ -1157,15 +1157,12 @@ impl<'p, Cx: PatCx> MatrixRow<'p, Cx> { self.pats.head() } - fn iter(&self) -> impl Iterator> + Captures<'_> { + fn iter(&self) -> impl Iterator> { self.pats.iter() } // Expand the first or-pattern (if any) into its subpatterns. Panics if `self` is empty. - fn expand_or_pat( - &self, - parent_row: usize, - ) -> impl Iterator> + Captures<'_> { + fn expand_or_pat(&self, parent_row: usize) -> impl Iterator> { let is_or_pat = self.pats.head().is_or_pat(); self.pats.expand_or_pat().map(move |patstack| MatrixRow { pats: patstack, @@ -1275,7 +1272,7 @@ impl<'p, Cx: PatCx> Matrix<'p, Cx> { } /// Iterate over the first pattern of each row. - fn heads(&self) -> impl Iterator> + Clone + Captures<'_> { + fn heads(&self) -> impl Iterator> + Clone { self.rows().map(|r| r.head()) } diff --git a/compiler/rustc_pattern_analysis/tests/common/mod.rs b/compiler/rustc_pattern_analysis/tests/common/mod.rs index 23560ad64190..365bc2d863f4 100644 --- a/compiler/rustc_pattern_analysis/tests/common/mod.rs +++ b/compiler/rustc_pattern_analysis/tests/common/mod.rs @@ -2,7 +2,7 @@ use rustc_pattern_analysis::constructor::{ Constructor, ConstructorSet, IntRange, MaybeInfiniteInt, RangeEnd, VariantVisibility, }; use rustc_pattern_analysis::usefulness::{PlaceValidity, UsefulnessReport}; -use rustc_pattern_analysis::{Captures, MatchArm, PatCx, PrivateUninhabitedField}; +use rustc_pattern_analysis::{MatchArm, PatCx, PrivateUninhabitedField}; /// Sets up `tracing` for easier debugging. Tries to look like the `rustc` setup. pub fn init_tracing() { @@ -156,12 +156,11 @@ impl PatCx for Cx { ty.sub_tys(ctor).len() } - fn ctor_sub_tys<'a>( - &'a self, - ctor: &'a Constructor, - ty: &'a Self::Ty, - ) -> impl Iterator + ExactSizeIterator + Captures<'a> - { + fn ctor_sub_tys( + &self, + ctor: &Constructor, + ty: &Self::Ty, + ) -> impl Iterator + ExactSizeIterator { ty.sub_tys(ctor).into_iter().map(|ty| (ty, PrivateUninhabitedField(false))) } diff --git a/compiler/rustc_query_system/src/dep_graph/serialized.rs b/compiler/rustc_query_system/src/dep_graph/serialized.rs index a4fb0a5b0722..bc78878a84a2 100644 --- a/compiler/rustc_query_system/src/dep_graph/serialized.rs +++ b/compiler/rustc_query_system/src/dep_graph/serialized.rs @@ -98,7 +98,7 @@ impl SerializedDepGraph { pub fn edge_targets_from( &self, source: SerializedDepNodeIndex, - ) -> impl Iterator + Clone + '_ { + ) -> impl Iterator + Clone { let header = self.edge_list_indices[source]; let mut raw = &self.edge_list_data[header.start()..]; // Figure out where the edge list for `source` ends by getting the start index of the next diff --git a/compiler/rustc_session/src/parse.rs b/compiler/rustc_session/src/parse.rs index e0405a71f65a..1fe521bd32d5 100644 --- a/compiler/rustc_session/src/parse.rs +++ b/compiler/rustc_session/src/parse.rs @@ -329,7 +329,7 @@ impl ParseSess { self.proc_macro_quoted_spans.push(span) } - pub fn proc_macro_quoted_spans(&self) -> impl Iterator + '_ { + pub fn proc_macro_quoted_spans(&self) -> impl Iterator { // This is equivalent to `.iter().copied().enumerate()`, but that isn't possible for // AppendOnlyVec, so we resort to this scheme. self.proc_macro_quoted_spans.iter_enumerated() diff --git a/compiler/rustc_session/src/search_paths.rs b/compiler/rustc_session/src/search_paths.rs index b750d870cb6f..00e12b45bafb 100644 --- a/compiler/rustc_session/src/search_paths.rs +++ b/compiler/rustc_session/src/search_paths.rs @@ -20,12 +20,11 @@ pub struct FilesIndex(Vec<(Arc, SearchPathFile)>); impl FilesIndex { /// Look up [SearchPathFile] by (prefix, suffix) pair. - pub fn query<'this, 'prefix, 'suffix>( - &'this self, - prefix: &'prefix str, - suffix: &'suffix str, - ) -> Option + use<'this, 'prefix, 'suffix>> - { + pub fn query<'s>( + &'s self, + prefix: &str, + suffix: &str, + ) -> Option> { let start = self.0.partition_point(|(k, _)| **k < *prefix); if start == self.0.len() { return None; diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs index 42b8199cb265..bed9734f389c 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/need_type_info.rs @@ -1074,7 +1074,7 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { &self, path: &'tcx hir::Path<'tcx>, args: GenericArgsRef<'tcx>, - ) -> impl Iterator> + 'a { + ) -> impl Iterator> + 'tcx { let tcx = self.tecx.tcx; let have_turbofish = path.segments.iter().any(|segment| { segment.args.is_some_and(|args| args.args.iter().any(|arg| arg.is_ty_or_const())) diff --git a/compiler/rustc_trait_selection/src/solve/fulfill.rs b/compiler/rustc_trait_selection/src/solve/fulfill.rs index 51d560d4c43d..704ba6e501d8 100644 --- a/compiler/rustc_trait_selection/src/solve/fulfill.rs +++ b/compiler/rustc_trait_selection/src/solve/fulfill.rs @@ -67,9 +67,7 @@ impl<'tcx> ObligationStorage<'tcx> { obligations } - fn unstalled_for_select( - &mut self, - ) -> impl Iterator> + use<'tcx> { + fn unstalled_for_select(&mut self) -> impl Iterator> + 'tcx { mem::take(&mut self.pending).into_iter() } diff --git a/compiler/rustc_trait_selection/src/traits/fulfill.rs b/compiler/rustc_trait_selection/src/traits/fulfill.rs index f2d2dd2f3ce5..e39f8e673dba 100644 --- a/compiler/rustc_trait_selection/src/traits/fulfill.rs +++ b/compiler/rustc_trait_selection/src/traits/fulfill.rs @@ -1,6 +1,5 @@ use std::marker::PhantomData; -use rustc_data_structures::captures::Captures; use rustc_data_structures::obligation_forest::{ Error, ForestObligation, ObligationForest, ObligationProcessor, Outcome, ProcessResult, }; @@ -900,10 +899,10 @@ impl<'a, 'tcx> FulfillProcessor<'a, 'tcx> { } /// Returns the set of inference variables contained in `args`. -fn args_infer_vars<'a, 'tcx>( - selcx: &SelectionContext<'a, 'tcx>, +fn args_infer_vars<'tcx>( + selcx: &SelectionContext<'_, 'tcx>, args: ty::Binder<'tcx, GenericArgsRef<'tcx>>, -) -> impl Iterator + Captures<'tcx> { +) -> impl Iterator { selcx .infcx .resolve_vars_if_possible(args) diff --git a/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs b/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs index f39c611d19fe..19d3561dd595 100644 --- a/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs +++ b/compiler/rustc_trait_selection/src/traits/specialize/specialization_graph.rs @@ -200,15 +200,12 @@ impl<'tcx> Children { } } -fn iter_children(children: &Children) -> impl Iterator + '_ { +fn iter_children(children: &Children) -> impl Iterator { let nonblanket = children.non_blanket_impls.iter().flat_map(|(_, v)| v.iter()); children.blanket_impls.iter().chain(nonblanket).cloned() } -fn filtered_children( - children: &mut Children, - st: SimplifiedType, -) -> impl Iterator + '_ { +fn filtered_children(children: &mut Children, st: SimplifiedType) -> impl Iterator { let nonblanket = children.non_blanket_impls.entry(st).or_default().iter(); children.blanket_impls.iter().chain(nonblanket).cloned() } diff --git a/compiler/rustc_trait_selection/src/traits/vtable.rs b/compiler/rustc_trait_selection/src/traits/vtable.rs index 0024316b877c..165174c0bcc1 100644 --- a/compiler/rustc_trait_selection/src/traits/vtable.rs +++ b/compiler/rustc_trait_selection/src/traits/vtable.rs @@ -196,7 +196,7 @@ fn own_existential_vtable_entries(tcx: TyCtxt<'_>, trait_def_id: DefId) -> &[Def fn own_existential_vtable_entries_iter( tcx: TyCtxt<'_>, trait_def_id: DefId, -) -> impl Iterator + '_ { +) -> impl Iterator { let trait_methods = tcx .associated_items(trait_def_id) .in_definition_order() diff --git a/compiler/rustc_ty_utils/src/implied_bounds.rs b/compiler/rustc_ty_utils/src/implied_bounds.rs index cc7baf8daac5..6205578bf747 100644 --- a/compiler/rustc_ty_utils/src/implied_bounds.rs +++ b/compiler/rustc_ty_utils/src/implied_bounds.rs @@ -151,7 +151,7 @@ fn assumed_wf_types<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalDefId) -> &'tcx [(Ty<' } } -fn fn_sig_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator + '_ { +fn fn_sig_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator { let node = tcx.hir_node_by_def_id(def_id); if let Some(decl) = node.fn_decl() { decl.inputs.iter().map(|ty| ty.span).chain(iter::once(decl.output.span())) @@ -160,7 +160,7 @@ fn fn_sig_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator, def_id: LocalDefId) -> impl Iterator + '_ { +fn impl_spans(tcx: TyCtxt<'_>, def_id: LocalDefId) -> impl Iterator { let item = tcx.hir().expect_item(def_id); if let hir::ItemKind::Impl(impl_) = item.kind { let trait_args = impl_ diff --git a/compiler/rustc_ty_utils/src/layout/invariant.rs b/compiler/rustc_ty_utils/src/layout/invariant.rs index 5ea6716c5ca1..525199801c3a 100644 --- a/compiler/rustc_ty_utils/src/layout/invariant.rs +++ b/compiler/rustc_ty_utils/src/layout/invariant.rs @@ -33,7 +33,7 @@ pub(super) fn layout_sanity_check<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayou fn non_zst_fields<'tcx, 'a>( cx: &'a LayoutCx<'tcx>, layout: &'a TyAndLayout<'tcx>, - ) -> impl Iterator)> + 'a { + ) -> impl Iterator)> { (0..layout.layout.fields().count()).filter_map(|i| { let field = layout.field(cx, i); // Also checking `align == 1` here leads to test failures in diff --git a/compiler/rustc_ty_utils/src/needs_drop.rs b/compiler/rustc_ty_utils/src/needs_drop.rs index 80de7e20951a..52955ec59a4a 100644 --- a/compiler/rustc_ty_utils/src/needs_drop.rs +++ b/compiler/rustc_ty_utils/src/needs_drop.rs @@ -373,7 +373,7 @@ fn drop_tys_helper<'tcx>( fn adt_consider_insignificant_dtor<'tcx>( tcx: TyCtxt<'tcx>, -) -> impl Fn(ty::AdtDef<'tcx>) -> Option + 'tcx { +) -> impl Fn(ty::AdtDef<'tcx>) -> Option { move |adt_def: ty::AdtDef<'tcx>| { let is_marked_insig = tcx.has_attr(adt_def.did(), sym::rustc_insignificant_dtor); if is_marked_insig { diff --git a/compiler/rustc_type_ir/src/search_graph/mod.rs b/compiler/rustc_type_ir/src/search_graph/mod.rs index 3cc2dcbaca6d..082cfff72e20 100644 --- a/compiler/rustc_type_ir/src/search_graph/mod.rs +++ b/compiler/rustc_type_ir/src/search_graph/mod.rs @@ -285,7 +285,7 @@ impl NestedGoals { #[cfg_attr(feature = "nightly", rustc_lint_query_instability)] #[allow(rustc::potential_query_instability)] - fn iter(&self) -> impl Iterator + '_ { + fn iter(&self) -> impl Iterator { self.nested_goals.iter().map(|(i, p)| (*i, *p)) } diff --git a/compiler/stable_mir/src/mir/body.rs b/compiler/stable_mir/src/mir/body.rs index bc2e427f50cb..f8b46f50a529 100644 --- a/compiler/stable_mir/src/mir/body.rs +++ b/compiler/stable_mir/src/mir/body.rs @@ -864,7 +864,7 @@ impl SwitchTargets { } /// The conditional targets which are only taken if the pattern matches the given value. - pub fn branches(&self) -> impl Iterator + '_ { + pub fn branches(&self) -> impl Iterator { self.branches.iter().copied() } diff --git a/compiler/stable_mir/src/ty.rs b/compiler/stable_mir/src/ty.rs index 9ef80edb82a6..b857a735b725 100644 --- a/compiler/stable_mir/src/ty.rs +++ b/compiler/stable_mir/src/ty.rs @@ -809,7 +809,7 @@ impl AdtDef { } /// Iterate over the variants in this ADT. - pub fn variants_iter(&self) -> impl Iterator + '_ { + pub fn variants_iter(&self) -> impl Iterator { (0..self.num_variants()) .map(|idx| VariantDef { idx: VariantIdx::to_val(idx), adt_def: *self }) } diff --git a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs index 3312da470c03..91eb59fb3140 100644 --- a/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs +++ b/src/tools/rust-analyzer/crates/hir-ty/src/diagnostics/match_check/pat_analysis.rs @@ -361,11 +361,11 @@ impl PatCx for MatchCheckCtx<'_> { } } - fn ctor_sub_tys<'a>( - &'a self, - ctor: &'a rustc_pattern_analysis::constructor::Constructor, - ty: &'a Self::Ty, - ) -> impl ExactSizeIterator + Captures<'a> { + fn ctor_sub_tys( + &self, + ctor: &rustc_pattern_analysis::constructor::Constructor, + ty: &Self::Ty, + ) -> impl ExactSizeIterator { let single = |ty| smallvec![(ty, PrivateUninhabitedField(false))]; let tys: SmallVec<[_; 2]> = match ctor { Struct | Variant(_) | UnionField => match ty.kind(Interner) { From 04c453c4bc4de30b41e3bd3ee7492d37b2cc3d89 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sat, 22 Feb 2025 23:54:08 +0000 Subject: [PATCH 246/255] Fix bugs due to unhandled ControlFlow --- compiler/rustc_lint/src/types.rs | 2 +- compiler/stable_mir/src/visitor.rs | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 68b1f435a4cf..3ec61cdf41a1 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -1587,7 +1587,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> { } impl<'a, 'b, 'tcx> ty::visit::TypeVisitor> for FnPtrFinder<'a, 'b, 'tcx> { - type Result = ControlFlow>; + type Result = (); fn visit_ty(&mut self, ty: Ty<'tcx>) -> Self::Result { if let ty::FnPtr(_, hdr) = ty.kind() diff --git a/compiler/stable_mir/src/visitor.rs b/compiler/stable_mir/src/visitor.rs index 3533ed2e8511..8463174f9a46 100644 --- a/compiler/stable_mir/src/visitor.rs +++ b/compiler/stable_mir/src/visitor.rs @@ -161,7 +161,7 @@ impl Visitable for RigidTy { RigidTy::Slice(inner) => inner.visit(visitor), RigidTy::RawPtr(ty, _) => ty.visit(visitor), RigidTy::Ref(reg, ty, _) => { - reg.visit(visitor); + reg.visit(visitor)?; ty.visit(visitor) } RigidTy::Adt(_, args) From 506532aad2368b1a62d07fa9950850a2f42966e4 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 23 Feb 2025 03:02:46 +0000 Subject: [PATCH 247/255] The sym crate is not a thing --- compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs b/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs index 50d10883d2ca..e3260e45bc52 100644 --- a/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs +++ b/compiler/rustc_mir_transform/src/lint_tail_expr_drop_order.rs @@ -186,7 +186,7 @@ fn true_significant_drop_ty<'tcx>( debug!(?name_str); match name_str[..] { // These are the types from Rust core ecosystem - ["sym" | "proc_macro2", ..] + ["syn" | "proc_macro2", ..] | ["core" | "std", "task", "LocalWaker" | "Waker"] | ["core" | "std", "task", "wake", "LocalWaker" | "Waker"] => Some(smallvec![]), // These are important types from Rust ecosystem From 54dd4c87bea51dca48dc3464df3d489c2a717b09 Mon Sep 17 00:00:00 2001 From: bit-aloo Date: Sun, 23 Feb 2025 08:37:10 +0530 Subject: [PATCH 248/255] bootstrap: add module docs for core:metadata --- src/bootstrap/src/core/metadata.rs | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/src/bootstrap/src/core/metadata.rs b/src/bootstrap/src/core/metadata.rs index 983674d2c683..01cbf6629408 100644 --- a/src/bootstrap/src/core/metadata.rs +++ b/src/bootstrap/src/core/metadata.rs @@ -1,3 +1,10 @@ +//! This module interacts with Cargo metadata to collect and store information about +//! the packages in the Rust workspace. +//! +//! It runs `cargo metadata` to gather details about each package, including its name, +//! source, dependencies, targets, and available features. The collected metadata is then +//! used to update the `Build` structure, ensuring proper dependency resolution and +//! compilation flow. use std::collections::BTreeMap; use std::path::PathBuf; From 431b9aa38ff466fbed1b933cd17efa10f6cd03b4 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 23 Feb 2025 04:46:51 +0000 Subject: [PATCH 249/255] Fix missing self subst when rendering Fn* trait with no output type --- compiler/rustc_middle/src/ty/print/pretty.rs | 24 +++++++++++-------- tests/crashes/133597.rs | 11 --------- .../unboxed-closures/existential-printing.rs | 8 +++++++ .../existential-printing.stderr | 17 +++++++++++++ 4 files changed, 39 insertions(+), 21 deletions(-) delete mode 100644 tests/crashes/133597.rs create mode 100644 tests/ui/unboxed-closures/existential-printing.rs create mode 100644 tests/ui/unboxed-closures/existential-printing.stderr diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 11b430dd358d..ed0839f47e69 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -232,7 +232,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { f: F, ) -> Result<(), PrintError> where - T: Print<'tcx, Self> + TypeFoldable>, + T: TypeFoldable>, { f(value.as_ref().skip_binder(), self) } @@ -1056,7 +1056,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { // Insert parenthesis around (Fn(A, B) -> C) if the opaque ty has more than one other trait let paren_needed = fn_traits.len() > 1 || traits.len() > 0 || !has_sized_bound; - for ((bound_args, is_async), entry) in fn_traits { + for ((bound_args_and_self_ty, is_async), entry) in fn_traits { write!(self, "{}", if first { "" } else { " + " })?; write!(self, "{}", if paren_needed { "(" } else { "" })?; @@ -1067,7 +1067,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { }; if let Some(return_ty) = entry.return_ty { - self.wrap_binder(&bound_args, |args, cx| { + self.wrap_binder(&bound_args_and_self_ty, |(args, _), cx| { define_scoped_cx!(cx); p!(write("{}", tcx.item_name(trait_def_id))); p!("("); @@ -1093,9 +1093,13 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { } else { // Otherwise, render this like a regular trait. traits.insert( - bound_args.map_bound(|args| ty::TraitPredicate { + bound_args_and_self_ty.map_bound(|(args, self_ty)| ty::TraitPredicate { polarity: ty::PredicatePolarity::Positive, - trait_ref: ty::TraitRef::new(tcx, trait_def_id, [Ty::new_tup(tcx, args)]), + trait_ref: ty::TraitRef::new( + tcx, + trait_def_id, + [self_ty, Ty::new_tup(tcx, args)], + ), }), FxIndexMap::default(), ); @@ -1229,7 +1233,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { FxIndexMap>>, >, fn_traits: &mut FxIndexMap< - (ty::Binder<'tcx, &'tcx ty::List>>, bool), + (ty::Binder<'tcx, (&'tcx ty::List>, Ty<'tcx>)>, bool), OpaqueFnEntry<'tcx>, >, ) { @@ -1249,7 +1253,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { && let ty::Tuple(types) = *trait_pred.skip_binder().trait_ref.args.type_at(1).kind() { let entry = fn_traits - .entry((trait_pred.rebind(types), is_async)) + .entry((trait_pred.rebind((types, trait_pred.skip_binder().self_ty())), is_async)) .or_insert_with(|| OpaqueFnEntry { kind, return_ty: None }); if kind.extends(entry.kind) { entry.kind = kind; @@ -2379,7 +2383,7 @@ impl<'tcx> PrettyPrinter<'tcx> for FmtPrinter<'_, 'tcx> { f: C, ) -> Result<(), PrintError> where - T: Print<'tcx, Self> + TypeFoldable>, + T: TypeFoldable>, { self.pretty_wrap_binder(value, f) } @@ -2633,7 +2637,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { value: &ty::Binder<'tcx, T>, ) -> Result<(T, UnordMap>), fmt::Error> where - T: Print<'tcx, Self> + TypeFoldable>, + T: TypeFoldable>, { fn name_by_region_index( index: usize, @@ -2814,7 +2818,7 @@ impl<'tcx> FmtPrinter<'_, 'tcx> { f: C, ) -> Result<(), fmt::Error> where - T: Print<'tcx, Self> + TypeFoldable>, + T: TypeFoldable>, { let old_region_index = self.region_index; let (new_value, _) = self.name_all_regions(value)?; diff --git a/tests/crashes/133597.rs b/tests/crashes/133597.rs deleted file mode 100644 index f716d5e7bc74..000000000000 --- a/tests/crashes/133597.rs +++ /dev/null @@ -1,11 +0,0 @@ -//@ known-bug: #133597 - -pub trait Foo2 { - fn boxed<'a: 'a>() -> impl Sized + FnOnce<()>; -} - -impl Foo2 for () {} - - -fn f() -> impl FnOnce<()> { || () } -fn main() { () = f(); } diff --git a/tests/ui/unboxed-closures/existential-printing.rs b/tests/ui/unboxed-closures/existential-printing.rs new file mode 100644 index 000000000000..f43373202091 --- /dev/null +++ b/tests/ui/unboxed-closures/existential-printing.rs @@ -0,0 +1,8 @@ +// Make sure we don't ICE printing `impl AsyncFnOnce<()>`. + +#![feature(unboxed_closures, fn_traits)] + +fn f() -> impl FnOnce<()> { || () } + +fn main() { () = f(); } +//~^ ERROR mismatched types diff --git a/tests/ui/unboxed-closures/existential-printing.stderr b/tests/ui/unboxed-closures/existential-printing.stderr new file mode 100644 index 000000000000..95de98878aff --- /dev/null +++ b/tests/ui/unboxed-closures/existential-printing.stderr @@ -0,0 +1,17 @@ +error[E0308]: mismatched types + --> $DIR/existential-printing.rs:7:13 + | +LL | fn f() -> impl FnOnce<()> { || () } + | --------------- the expected opaque type +LL | +LL | fn main() { () = f(); } + | ^^ --- this expression has type `impl FnOnce<()>` + | | + | expected opaque type, found `()` + | + = note: expected opaque type `impl FnOnce<()>` + found unit type `()` + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0308`. From 08f1086bf06796f95cf83e140b8304d77081535d Mon Sep 17 00:00:00 2001 From: Trevor Gross Date: Wed, 19 Feb 2025 20:17:02 -0500 Subject: [PATCH 250/255] Update `compiler-builtins` to 0.1.147 Removes an ABI hack that used `<2 x i64>` to return `i128` in `xmm0` on Windows [1]. [1]: https://github.com/rust-lang/compiler-builtins/pull/759 Link: https://github.com/rust-lang/rust/issues/116558 Link: https://github.com/rust-lang/compiler-builtins/issues/758 --- ...029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch | 4 ++-- library/Cargo.lock | 4 ++-- library/alloc/Cargo.toml | 2 +- library/std/Cargo.toml | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch b/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch index eb1fc4b0ad59..364a6a035ab8 100644 --- a/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch +++ b/compiler/rustc_codegen_cranelift/patches/0029-stdlib-Disable-f16-and-f128-in-compiler-builtins.patch @@ -16,8 +16,8 @@ index 7165c3e48af..968552ad435 100644 [dependencies] core = { path = "../core", public = true } --compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std'] } -+compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std', 'no-f16-f128'] } +-compiler_builtins = { version = "=0.1.147", features = ['rustc-dep-of-std'] } ++compiler_builtins = { version = "=0.1.147", features = ['rustc-dep-of-std', 'no-f16-f128'] } [dev-dependencies] rand = { version = "0.8.5", default-features = false, features = ["alloc"] } diff --git a/library/Cargo.lock b/library/Cargo.lock index 0be2f9a15493..0ad56f3ce47a 100644 --- a/library/Cargo.lock +++ b/library/Cargo.lock @@ -61,9 +61,9 @@ dependencies = [ [[package]] name = "compiler_builtins" -version = "0.1.146" +version = "0.1.147" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "a97117b1434b79833f39a5fabdf82f890bd98c1988334dea1cb67f7e627fa311" +checksum = "7170335a76fbcba350c3ea795c15df3b2c02934e35e502e82c4dd7837d4d0161" dependencies = [ "cc", "rustc-std-workspace-core", diff --git a/library/alloc/Cargo.toml b/library/alloc/Cargo.toml index 395cff13189d..6f9074d91b01 100644 --- a/library/alloc/Cargo.toml +++ b/library/alloc/Cargo.toml @@ -12,7 +12,7 @@ edition = "2021" [dependencies] core = { path = "../core", public = true } -compiler_builtins = { version = "=0.1.146", features = ['rustc-dep-of-std'] } +compiler_builtins = { version = "=0.1.147", features = ['rustc-dep-of-std'] } [dev-dependencies] rand = { version = "0.9.0", default-features = false, features = ["alloc"] } diff --git a/library/std/Cargo.toml b/library/std/Cargo.toml index 228ee6eea05f..518d4ded92da 100644 --- a/library/std/Cargo.toml +++ b/library/std/Cargo.toml @@ -18,7 +18,7 @@ cfg-if = { version = "1.0", features = ['rustc-dep-of-std'] } panic_unwind = { path = "../panic_unwind", optional = true } panic_abort = { path = "../panic_abort" } core = { path = "../core", public = true } -compiler_builtins = { version = "=0.1.146" } +compiler_builtins = { version = "=0.1.147" } unwind = { path = "../unwind" } hashbrown = { version = "0.15", default-features = false, features = [ 'rustc-dep-of-std', From b9d0555d11736f96b4fbbb83bfed94a7098a9ba7 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sun, 23 Feb 2025 10:57:44 +0100 Subject: [PATCH 251/255] add stdarch compatibility hack --- library/core/src/intrinsics/mod.rs | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index a52f2b20246d..a6d6ad572dd0 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -2793,6 +2793,12 @@ pub fn round_ties_even_f32(x: f32) -> f32 { unsafe { rintf32(x) } } +/// Provided for compatibility with stdarch. DO NOT USE. +#[inline(always)] +pub unsafe fn rintf32(x: f32) -> f32 { + round_ties_even_f32(x) +} + /// Returns the nearest integer to an `f64`. Rounds half-way cases to the number with an even /// least significant digit. /// @@ -2820,6 +2826,12 @@ pub fn round_ties_even_f64(x: f64) -> f64 { unsafe { rintf64(x) } } +/// Provided for compatibility with stdarch. DO NOT USE. +#[inline(always)] +pub unsafe fn rintf64(x: f64) -> f64 { + round_ties_even_f64(x) +} + /// Returns the nearest integer to an `f128`. Rounds half-way cases to the number with an even /// least significant digit. /// From 50f84129e66de867a735ee836339e8ed9dd7425e Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Sun, 23 Feb 2025 10:53:03 +0000 Subject: [PATCH 252/255] avoid `compiler_for` for dist tools and force the current compiler Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/dist.rs | 56 ++++------------------ src/bootstrap/src/core/builder/tests.rs | 2 +- 2 files changed, 11 insertions(+), 47 deletions(-) diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index dc96b7d0e0d9..26b3e0b701c4 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -421,11 +421,7 @@ impl Step for Rustc { if let Some(ra_proc_macro_srv) = builder.ensure_if_default( tool::RustAnalyzerProcMacroSrv { - compiler: builder.compiler_for( - compiler.stage, - builder.config.build, - compiler.host, - ), + compiler: builder.compiler(compiler.stage, builder.config.build), target: compiler.host, }, builder.kind, @@ -775,11 +771,7 @@ impl Step for Analysis { // Find the actual compiler (handling the full bootstrap option) which // produced the save-analysis data because that data isn't copied // through the sysroot uplifting. - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1124,11 +1116,7 @@ impl Step for Cargo { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Cargo { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1173,11 +1161,7 @@ impl Step for Rls { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Rls { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1215,11 +1199,7 @@ impl Step for RustAnalyzer { fn make_run(run: RunConfig<'_>) { run.builder.ensure(RustAnalyzer { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1257,11 +1237,7 @@ impl Step for Clippy { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Clippy { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1304,11 +1280,7 @@ impl Step for Miri { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Miri { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1442,11 +1414,7 @@ impl Step for Rustfmt { fn make_run(run: RunConfig<'_>) { run.builder.ensure(Rustfmt { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } @@ -1496,7 +1464,7 @@ impl Step for Extended { fn run(self, builder: &Builder<'_>) { let target = self.target; let stage = self.stage; - let compiler = builder.compiler_for(self.stage, self.host, self.target); + let compiler = builder.compiler(self.stage, self.host); builder.info(&format!("Dist extended stage{} ({})", compiler.stage, target)); @@ -2260,11 +2228,7 @@ impl Step for LlvmBitcodeLinker { fn make_run(run: RunConfig<'_>) { run.builder.ensure(LlvmBitcodeLinker { - compiler: run.builder.compiler_for( - run.builder.top_stage, - run.builder.config.build, - run.target, - ), + compiler: run.builder.compiler(run.builder.top_stage, run.builder.config.build), target: run.target, }); } diff --git a/src/bootstrap/src/core/builder/tests.rs b/src/bootstrap/src/core/builder/tests.rs index b6aa9e7c8446..0eaa89792bd9 100644 --- a/src/bootstrap/src/core/builder/tests.rs +++ b/src/bootstrap/src/core/builder/tests.rs @@ -525,7 +525,7 @@ mod dist { first(cache.all::()), &[ rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_1, stage = 0), - rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_2, stage = 0), + rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_1, stage = 1), rustc!(TEST_TRIPLE_1 => TEST_TRIPLE_2, stage = 1), ] ); From 1c7b60f8a4595efd1cef016582e6050b3cab9868 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Sun, 23 Feb 2025 10:54:24 +0000 Subject: [PATCH 253/255] add FIXME note on `Builder::compiler_for` Signed-off-by: onur-ozkan --- src/bootstrap/src/core/builder/mod.rs | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/bootstrap/src/core/builder/mod.rs b/src/bootstrap/src/core/builder/mod.rs index 25fa10e08111..9c04f097bee2 100644 --- a/src/bootstrap/src/core/builder/mod.rs +++ b/src/bootstrap/src/core/builder/mod.rs @@ -1262,6 +1262,9 @@ impl<'a> Builder<'a> { ), ), )] + + /// FIXME: This function is unnecessary (and dangerous, see ). + /// We already have uplifting logic for the compiler, so remove this. pub fn compiler_for( &self, stage: u32, From c813d8f3e49aa4c85c9eded426b6507701a2ff94 Mon Sep 17 00:00:00 2001 From: bendn Date: Sun, 23 Feb 2025 20:26:28 +0700 Subject: [PATCH 254/255] =?UTF-8?q?rename=20sub=5Fptr=20=F0=9F=98=85?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- compiler/rustc_serialize/src/opaque.rs | 6 +++--- library/alloc/src/vec/drain.rs | 2 +- library/alloc/src/vec/in_place_collect.rs | 2 +- library/alloc/src/vec/in_place_drop.rs | 2 +- library/alloc/src/vec/into_iter.rs | 4 ++-- library/core/src/ptr/const_ptr.rs | 18 +++++++++--------- library/core/src/ptr/mut_ptr.rs | 16 ++++++++-------- library/core/src/ptr/non_null.rs | 18 +++++++++--------- library/core/src/slice/iter/macros.rs | 2 +- library/core/src/slice/raw.rs | 4 ++-- library/core/src/slice/sort/shared/pivot.rs | 4 ++-- library/core/src/slice/sort/stable/merge.rs | 2 +- .../core/src/slice/sort/unstable/quicksort.rs | 2 +- .../intrinsics/ptr_offset_from_unsigned_neg.rs | 2 +- .../ptr_offset_from_unsigned_neg.stderr | 4 ++-- src/tools/miri/tests/pass/ptr_offset.rs | 6 +++--- tests/ui/const-ptr/forbidden_slices.stderr | 6 +++--- tests/ui/consts/offset_from.rs | 2 +- 18 files changed, 51 insertions(+), 51 deletions(-) diff --git a/compiler/rustc_serialize/src/opaque.rs b/compiler/rustc_serialize/src/opaque.rs index 27e9f817894f..d4907b69b720 100644 --- a/compiler/rustc_serialize/src/opaque.rs +++ b/compiler/rustc_serialize/src/opaque.rs @@ -280,13 +280,13 @@ impl<'a> MemDecoder<'a> { #[inline] pub fn len(&self) -> usize { // SAFETY: This recovers the length of the original slice, only using members we never modify. - unsafe { self.end.sub_ptr(self.start) } + unsafe { self.end.offset_from_unsigned(self.start) } } #[inline] pub fn remaining(&self) -> usize { // SAFETY: This type guarantees current <= end. - unsafe { self.end.sub_ptr(self.current) } + unsafe { self.end.offset_from_unsigned(self.current) } } #[cold] @@ -400,7 +400,7 @@ impl<'a> Decoder for MemDecoder<'a> { #[inline] fn position(&self) -> usize { // SAFETY: This type guarantees start <= current - unsafe { self.current.sub_ptr(self.start) } + unsafe { self.current.offset_from_unsigned(self.start) } } } diff --git a/library/alloc/src/vec/drain.rs b/library/alloc/src/vec/drain.rs index 9362cef2a1b0..8705a9c3d267 100644 --- a/library/alloc/src/vec/drain.rs +++ b/library/alloc/src/vec/drain.rs @@ -232,7 +232,7 @@ impl Drop for Drain<'_, T, A> { // it from the original vec but also avoid creating a &mut to the front since that could // invalidate raw pointers to it which some unsafe code might rely on. let vec_ptr = vec.as_mut().as_mut_ptr(); - let drop_offset = drop_ptr.sub_ptr(vec_ptr); + let drop_offset = drop_ptr.offset_from_unsigned(vec_ptr); let to_drop = ptr::slice_from_raw_parts_mut(vec_ptr.add(drop_offset), drop_len); ptr::drop_in_place(to_drop); } diff --git a/library/alloc/src/vec/in_place_collect.rs b/library/alloc/src/vec/in_place_collect.rs index a7dba16944e7..dffd85f13aa5 100644 --- a/library/alloc/src/vec/in_place_collect.rs +++ b/library/alloc/src/vec/in_place_collect.rs @@ -379,7 +379,7 @@ where let sink = self.try_fold::<_, _, Result<_, !>>(sink, write_in_place_with_drop(end)).into_ok(); // iteration succeeded, don't drop head - unsafe { ManuallyDrop::new(sink).dst.sub_ptr(dst_buf) } + unsafe { ManuallyDrop::new(sink).dst.offset_from_unsigned(dst_buf) } } } diff --git a/library/alloc/src/vec/in_place_drop.rs b/library/alloc/src/vec/in_place_drop.rs index 4d5b4e47d39e..997c4c7525b5 100644 --- a/library/alloc/src/vec/in_place_drop.rs +++ b/library/alloc/src/vec/in_place_drop.rs @@ -14,7 +14,7 @@ pub(super) struct InPlaceDrop { impl InPlaceDrop { fn len(&self) -> usize { - unsafe { self.dst.sub_ptr(self.inner) } + unsafe { self.dst.offset_from_unsigned(self.inner) } } } diff --git a/library/alloc/src/vec/into_iter.rs b/library/alloc/src/vec/into_iter.rs index 9a6745fdbc0a..52597e41c1cf 100644 --- a/library/alloc/src/vec/into_iter.rs +++ b/library/alloc/src/vec/into_iter.rs @@ -179,7 +179,7 @@ impl IntoIter { // say that they're all at the beginning of the "allocation". 0..this.len() } else { - this.ptr.sub_ptr(this.buf)..this.end.sub_ptr(buf) + this.ptr.offset_from_unsigned(this.buf)..this.end.offset_from_unsigned(buf) }; let cap = this.cap; let alloc = ManuallyDrop::take(&mut this.alloc); @@ -230,7 +230,7 @@ impl Iterator for IntoIter { let exact = if T::IS_ZST { self.end.addr().wrapping_sub(self.ptr.as_ptr().addr()) } else { - unsafe { non_null!(self.end, T).sub_ptr(self.ptr) } + unsafe { non_null!(self.end, T).offset_from_unsigned(self.ptr) } }; (exact, Some(exact)) } diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index 14693de0ae01..8db620596dde 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -724,7 +724,7 @@ impl *const T { /// that their safety preconditions are met: /// ```rust /// # unsafe fn blah(ptr: *const i32, origin: *const i32, count: usize) -> bool { unsafe { - /// ptr.sub_ptr(origin) == count + /// ptr.offset_from_unsigned(origin) == count /// # && /// origin.add(count) == ptr /// # && @@ -755,20 +755,20 @@ impl *const T { /// let ptr1: *const i32 = &a[1]; /// let ptr2: *const i32 = &a[3]; /// unsafe { - /// assert_eq!(ptr2.sub_ptr(ptr1), 2); + /// assert_eq!(ptr2.offset_from_unsigned(ptr1), 2); /// assert_eq!(ptr1.add(2), ptr2); /// assert_eq!(ptr2.sub(2), ptr1); - /// assert_eq!(ptr2.sub_ptr(ptr2), 0); + /// assert_eq!(ptr2.offset_from_unsigned(ptr2), 0); /// } /// /// // This would be incorrect, as the pointers are not correctly ordered: - /// // ptr1.sub_ptr(ptr2) + /// // ptr1.offset_from_unsigned(ptr2) /// ``` #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - pub const unsafe fn sub_ptr(self, origin: *const T) -> usize + pub const unsafe fn offset_from_unsigned(self, origin: *const T) -> usize where T: Sized, { @@ -786,7 +786,7 @@ impl *const T { ub_checks::assert_unsafe_precondition!( check_language_ub, - "ptr::sub_ptr requires `self >= origin`", + "ptr::offset_from_unsigned requires `self >= origin`", ( this: *const () = self as *const (), origin: *const () = origin as *const (), @@ -804,7 +804,7 @@ impl *const T { /// units of **bytes**. /// /// This is purely a convenience for casting to a `u8` pointer and - /// using [`sub_ptr`][pointer::sub_ptr] on it. See that method for + /// using [`sub_ptr`][pointer::offset_from_unsigned] on it. See that method for /// documentation and safety requirements. /// /// For non-`Sized` pointees this operation considers only the data pointers, @@ -813,9 +813,9 @@ impl *const T { #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - pub const unsafe fn byte_sub_ptr(self, origin: *const U) -> usize { + pub const unsafe fn byte_offset_from_unsigned(self, origin: *const U) -> usize { // SAFETY: the caller must uphold the safety contract for `sub_ptr`. - unsafe { self.cast::().sub_ptr(origin.cast::()) } + unsafe { self.cast::().offset_from_unsigned(origin.cast::()) } } /// Returns whether two pointers are guaranteed to be equal. diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 6f9019ae0884..5a64f12ca99f 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -896,7 +896,7 @@ impl *mut T { /// that their safety preconditions are met: /// ```rust /// # unsafe fn blah(ptr: *mut i32, origin: *mut i32, count: usize) -> bool { unsafe { - /// ptr.sub_ptr(origin) == count + /// ptr.offset_from_unsigned(origin) == count /// # && /// origin.add(count) == ptr /// # && @@ -929,10 +929,10 @@ impl *mut T { /// let ptr1: *mut i32 = p.add(1); /// let ptr2: *mut i32 = p.add(3); /// - /// assert_eq!(ptr2.sub_ptr(ptr1), 2); + /// assert_eq!(ptr2.offset_from_unsigned(ptr1), 2); /// assert_eq!(ptr1.add(2), ptr2); /// assert_eq!(ptr2.sub(2), ptr1); - /// assert_eq!(ptr2.sub_ptr(ptr2), 0); + /// assert_eq!(ptr2.offset_from_unsigned(ptr2), 0); /// } /// /// // This would be incorrect, as the pointers are not correctly ordered: @@ -941,12 +941,12 @@ impl *mut T { #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - pub const unsafe fn sub_ptr(self, origin: *const T) -> usize + pub const unsafe fn offset_from_unsigned(self, origin: *const T) -> usize where T: Sized, { // SAFETY: the caller must uphold the safety contract for `sub_ptr`. - unsafe { (self as *const T).sub_ptr(origin) } + unsafe { (self as *const T).offset_from_unsigned(origin) } } /// Calculates the distance between two pointers within the same allocation, *where it's known that @@ -954,7 +954,7 @@ impl *mut T { /// units of **bytes**. /// /// This is purely a convenience for casting to a `u8` pointer and - /// using [`sub_ptr`][pointer::sub_ptr] on it. See that method for + /// using [`sub_ptr`][pointer::offset_from_unsigned] on it. See that method for /// documentation and safety requirements. /// /// For non-`Sized` pointees this operation considers only the data pointers, @@ -963,9 +963,9 @@ impl *mut T { #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces - pub const unsafe fn byte_sub_ptr(self, origin: *mut U) -> usize { + pub const unsafe fn byte_offset_from_unsigned(self, origin: *mut U) -> usize { // SAFETY: the caller must uphold the safety contract for `byte_sub_ptr`. - unsafe { (self as *const T).byte_sub_ptr(origin) } + unsafe { (self as *const T).byte_offset_from_unsigned(origin) } } /// Adds an unsigned offset to a pointer. diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index befb3ccb14be..7abd3ddaa9ef 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -857,7 +857,7 @@ impl NonNull { /// that their safety preconditions are met: /// ```rust /// # unsafe fn blah(ptr: std::ptr::NonNull, origin: std::ptr::NonNull, count: usize) -> bool { unsafe { - /// ptr.sub_ptr(origin) == count + /// ptr.offset_from_unsigned(origin) == count /// # && /// origin.add(count) == ptr /// # && @@ -890,25 +890,25 @@ impl NonNull { /// let ptr1: NonNull = NonNull::from(&a[1]); /// let ptr2: NonNull = NonNull::from(&a[3]); /// unsafe { - /// assert_eq!(ptr2.sub_ptr(ptr1), 2); + /// assert_eq!(ptr2.offset_from_unsigned(ptr1), 2); /// assert_eq!(ptr1.add(2), ptr2); /// assert_eq!(ptr2.sub(2), ptr1); - /// assert_eq!(ptr2.sub_ptr(ptr2), 0); + /// assert_eq!(ptr2.offset_from_unsigned(ptr2), 0); /// } /// /// // This would be incorrect, as the pointers are not correctly ordered: - /// // ptr1.sub_ptr(ptr2) + /// // ptr1.offset_from_unsigned(ptr2) /// ``` #[inline] #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] - pub const unsafe fn sub_ptr(self, subtracted: NonNull) -> usize + pub const unsafe fn offset_from_unsigned(self, subtracted: NonNull) -> usize where T: Sized, { // SAFETY: the caller must uphold the safety contract for `sub_ptr`. - unsafe { self.as_ptr().sub_ptr(subtracted.as_ptr()) } + unsafe { self.as_ptr().offset_from_unsigned(subtracted.as_ptr()) } } /// Calculates the distance between two pointers within the same allocation, *where it's known that @@ -916,7 +916,7 @@ impl NonNull { /// units of **bytes**. /// /// This is purely a convenience for casting to a `u8` pointer and - /// using [`sub_ptr`][NonNull::sub_ptr] on it. See that method for + /// using [`sub_ptr`][NonNull::offset_from_unsigned] on it. See that method for /// documentation and safety requirements. /// /// For non-`Sized` pointees this operation considers only the data pointers, @@ -925,9 +925,9 @@ impl NonNull { #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces #[stable(feature = "ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "CURRENT_RUSTC_VERSION")] - pub const unsafe fn byte_sub_ptr(self, origin: NonNull) -> usize { + pub const unsafe fn byte_offset_from_unsigned(self, origin: NonNull) -> usize { // SAFETY: the caller must uphold the safety contract for `byte_sub_ptr`. - unsafe { self.as_ptr().byte_sub_ptr(origin.as_ptr()) } + unsafe { self.as_ptr().byte_offset_from_unsigned(origin.as_ptr()) } } /// Reads the value from `self` without moving it. This leaves the diff --git a/library/core/src/slice/iter/macros.rs b/library/core/src/slice/iter/macros.rs index b1456a1bc1da..7c1ed3fe8a24 100644 --- a/library/core/src/slice/iter/macros.rs +++ b/library/core/src/slice/iter/macros.rs @@ -54,7 +54,7 @@ macro_rules! len { // To get rid of some bounds checks (see `position`), we use ptr_sub instead of // offset_from (Tested by `codegen/slice-position-bounds-check`.) // SAFETY: by the type invariant pointers are aligned and `start <= end` - unsafe { end.sub_ptr($self.ptr) } + unsafe { end.offset_from_unsigned($self.ptr) } }, ) }}; diff --git a/library/core/src/slice/raw.rs b/library/core/src/slice/raw.rs index 319b76899bf8..e24b52cff82e 100644 --- a/library/core/src/slice/raw.rs +++ b/library/core/src/slice/raw.rs @@ -272,7 +272,7 @@ pub const fn from_mut(s: &mut T) -> &mut [T] { #[rustc_const_unstable(feature = "const_slice_from_ptr_range", issue = "89792")] pub const unsafe fn from_ptr_range<'a, T>(range: Range<*const T>) -> &'a [T] { // SAFETY: the caller must uphold the safety contract for `from_ptr_range`. - unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } + unsafe { from_raw_parts(range.start, range.end.offset_from_unsigned(range.start)) } } /// Forms a mutable slice from a pointer range. @@ -342,5 +342,5 @@ pub const unsafe fn from_ptr_range<'a, T>(range: Range<*const T>) -> &'a [T] { #[rustc_const_unstable(feature = "const_slice_from_mut_ptr_range", issue = "89792")] pub const unsafe fn from_mut_ptr_range<'a, T>(range: Range<*mut T>) -> &'a mut [T] { // SAFETY: the caller must uphold the safety contract for `from_mut_ptr_range`. - unsafe { from_raw_parts_mut(range.start, range.end.sub_ptr(range.start)) } + unsafe { from_raw_parts_mut(range.start, range.end.offset_from_unsigned(range.start)) } } diff --git a/library/core/src/slice/sort/shared/pivot.rs b/library/core/src/slice/sort/shared/pivot.rs index 255a1eb6c88a..3aace484b6a8 100644 --- a/library/core/src/slice/sort/shared/pivot.rs +++ b/library/core/src/slice/sort/shared/pivot.rs @@ -31,9 +31,9 @@ pub fn choose_pivot bool>(v: &[T], is_less: &mut F) -> us let c = v_base.add(len_div_8 * 7); // [7*floor(n/8), 8*floor(n/8)) if len < PSEUDO_MEDIAN_REC_THRESHOLD { - median3(&*a, &*b, &*c, is_less).sub_ptr(v_base) + median3(&*a, &*b, &*c, is_less).offset_from_unsigned(v_base) } else { - median3_rec(a, b, c, len_div_8, is_less).sub_ptr(v_base) + median3_rec(a, b, c, len_div_8, is_less).offset_from_unsigned(v_base) } } } diff --git a/library/core/src/slice/sort/stable/merge.rs b/library/core/src/slice/sort/stable/merge.rs index 0cb21740795b..bb2747bfc78a 100644 --- a/library/core/src/slice/sort/stable/merge.rs +++ b/library/core/src/slice/sort/stable/merge.rs @@ -143,7 +143,7 @@ impl Drop for MergeState { // leave the input slice `v` with each original element and all possible // modifications observed. unsafe { - let len = self.end.sub_ptr(self.start); + let len = self.end.offset_from_unsigned(self.start); ptr::copy_nonoverlapping(self.start, self.dst, len); } } diff --git a/library/core/src/slice/sort/unstable/quicksort.rs b/library/core/src/slice/sort/unstable/quicksort.rs index 4feef5deeb0f..bb9f90fc881a 100644 --- a/library/core/src/slice/sort/unstable/quicksort.rs +++ b/library/core/src/slice/sort/unstable/quicksort.rs @@ -224,7 +224,7 @@ where left = left.add(1); } - left.sub_ptr(v_base) + left.offset_from_unsigned(v_base) // `gap_opt` goes out of scope and overwrites the last wrong-side element on the right side // with the first wrong-side element of the left side that was initially overwritten by the diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs index 13874398f7be..562d72b0ca0f 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs +++ b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs @@ -3,5 +3,5 @@ fn main() { let arr = [0u8; 8]; let ptr1 = arr.as_ptr(); let ptr2 = ptr1.wrapping_add(4); - let _val = unsafe { ptr1.sub_ptr(ptr2) }; //~ERROR: first pointer has smaller address than second + let _val = unsafe { ptr1.offset_from_unsigned(ptr2) }; //~ERROR: first pointer has smaller address than second } diff --git a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.stderr b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.stderr index a0a8e97e7fa9..80e3f2c22a15 100644 --- a/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.stderr +++ b/src/tools/miri/tests/fail/intrinsics/ptr_offset_from_unsigned_neg.stderr @@ -1,8 +1,8 @@ error: Undefined Behavior: `ptr_offset_from_unsigned` called when first pointer has smaller address than second: $ADDR < $ADDR --> tests/fail/intrinsics/ptr_offset_from_unsigned_neg.rs:LL:CC | -LL | let _val = unsafe { ptr1.sub_ptr(ptr2) }; - | ^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer has smaller address than second: $ADDR < $ADDR +LL | let _val = unsafe { ptr1.offset_from_unsigned(ptr2) }; + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called when first pointer has smaller address than second: $ADDR < $ADDR | = help: this indicates a bug in the program: it performed an invalid operation, and caused Undefined Behavior = help: see https://doc.rust-lang.org/nightly/reference/behavior-considered-undefined.html for further information diff --git a/src/tools/miri/tests/pass/ptr_offset.rs b/src/tools/miri/tests/pass/ptr_offset.rs index a8a0d2836e70..89aff7bf6350 100644 --- a/src/tools/miri/tests/pass/ptr_offset.rs +++ b/src/tools/miri/tests/pass/ptr_offset.rs @@ -21,7 +21,7 @@ fn smoke() { let _val = ptr.wrapping_sub(0); let _val = unsafe { ptr.sub(0) }; let _val = unsafe { ptr.offset_from(ptr) }; - let _val = unsafe { ptr.sub_ptr(ptr) }; + let _val = unsafe { ptr.offset_from_unsigned(ptr) }; } fn test_offset_from() { @@ -32,14 +32,14 @@ fn test_offset_from() { let y = x.offset(12); assert_eq!(y.offset_from(x), 12); - assert_eq!(y.sub_ptr(x), 12); + assert_eq!(y.offset_from_unsigned(x), 12); assert_eq!(x.offset_from(y), -12); assert_eq!((y as *const u32).offset_from(x as *const u32), 12 / 4); assert_eq!((x as *const u32).offset_from(y as *const u32), -12 / 4); let x = (((x as usize) * 2) / 2) as *const u8; assert_eq!(y.offset_from(x), 12); - assert_eq!(y.sub_ptr(x), 12); + assert_eq!(y.offset_from_unsigned(x), 12); assert_eq!(x.offset_from(y), -12); } } diff --git a/tests/ui/const-ptr/forbidden_slices.stderr b/tests/ui/const-ptr/forbidden_slices.stderr index 2e0c04dcf1ea..df588fcc5e10 100644 --- a/tests/ui/const-ptr/forbidden_slices.stderr +++ b/tests/ui/const-ptr/forbidden_slices.stderr @@ -104,7 +104,7 @@ error[E0080]: could not evaluate static initializer | = note: the evaluated program panicked at 'assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize', $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL | -note: inside `std::ptr::const_ptr::::sub_ptr` +note: inside `std::ptr::const_ptr::::offset_from_unsigned` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `from_ptr_range::<'_, ()>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL @@ -192,7 +192,7 @@ error[E0080]: could not evaluate static initializer | = note: `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation | -note: inside `std::ptr::const_ptr::::sub_ptr` +note: inside `std::ptr::const_ptr::::offset_from_unsigned` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL @@ -207,7 +207,7 @@ error[E0080]: could not evaluate static initializer | = note: `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation | -note: inside `std::ptr::const_ptr::::sub_ptr` +note: inside `std::ptr::const_ptr::::offset_from_unsigned` --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `from_ptr_range::<'_, u32>` --> $SRC_DIR/core/src/slice/raw.rs:LL:COL diff --git a/tests/ui/consts/offset_from.rs b/tests/ui/consts/offset_from.rs index c06314ac7df0..02e8d145f65a 100644 --- a/tests/ui/consts/offset_from.rs +++ b/tests/ui/consts/offset_from.rs @@ -44,7 +44,7 @@ pub const OFFSET_EQUAL_INTS: isize = { pub const OFFSET_UNSIGNED: usize = { let a = ['a', 'b', 'c']; let ptr = a.as_ptr(); - unsafe { ptr.add(2).sub_ptr(ptr) } + unsafe { ptr.add(2).offset_from_unsigned(ptr) } }; fn main() { From a4a9fb412e1b0420b570a2d6ac2cf81142c5cc11 Mon Sep 17 00:00:00 2001 From: Matthew Jasper Date: Mon, 24 Feb 2025 16:38:00 +0000 Subject: [PATCH 255/255] Don't immediately panic if dropck fails without returning errors Type lowering can give non-fatal errors that dropck then uses to suppress its own errors. Assume this is the cases when we can't find the error in borrowck. --- .../src/type_check/liveness/trace.rs | 9 ++++----- .../dropck-after-failed-type-lowering.rs | 14 ++++++++++++++ .../dropck-after-failed-type-lowering.stderr | 19 +++++++++++++++++++ 3 files changed, 37 insertions(+), 5 deletions(-) create mode 100644 tests/ui/dropck/dropck-after-failed-type-lowering.rs create mode 100644 tests/ui/dropck/dropck-after-failed-type-lowering.stderr diff --git a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs index 12e8be41614b..dc35d5eb89c9 100644 --- a/compiler/rustc_borrowck/src/type_check/liveness/trace.rs +++ b/compiler/rustc_borrowck/src/type_check/liveness/trace.rs @@ -4,7 +4,6 @@ use rustc_index::interval::IntervalSet; use rustc_infer::infer::canonical::QueryRegionConstraints; use rustc_infer::infer::outlives::for_liveness; use rustc_middle::mir::{BasicBlock, Body, ConstraintCategory, HasLocalDecls, Local, Location}; -use rustc_middle::span_bug; use rustc_middle::traits::query::DropckOutlivesResult; use rustc_middle::ty::relate::Relate; use rustc_middle::ty::{Ty, TyCtxt, TypeVisitable, TypeVisitableExt}; @@ -12,7 +11,7 @@ use rustc_mir_dataflow::ResultsCursor; use rustc_mir_dataflow::impls::MaybeInitializedPlaces; use rustc_mir_dataflow::move_paths::{HasMoveData, MoveData, MovePathIndex}; use rustc_mir_dataflow::points::{DenseLocationMap, PointIndex}; -use rustc_span::{DUMMY_SP, Span}; +use rustc_span::{DUMMY_SP, ErrorGuaranteed, Span}; use rustc_trait_selection::error_reporting::InferCtxtErrorExt; use rustc_trait_selection::traits::ObligationCtxt; use rustc_trait_selection::traits::query::dropck_outlives; @@ -608,7 +607,7 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { Ok(TypeOpOutput { output, constraints, .. }) => { DropData { dropck_result: output, region_constraint_data: constraints } } - Err(_) => { + Err(ErrorGuaranteed { .. }) => { // We don't run dropck on HIR, and dropck looks inside fields of // types, so there's no guarantee that it succeeds. We also // can't rely on the the `ErrorGuaranteed` from `fully_perform` here @@ -631,10 +630,10 @@ impl<'tcx> LivenessContext<'_, '_, '_, 'tcx> { } }; + // Could have no errors if a type lowering error, say, caused the query + // to fail. if !errors.is_empty() { typeck.infcx.err_ctxt().report_fulfillment_errors(errors); - } else { - span_bug!(span, "Rerunning drop data query produced no error."); } }); DropData { dropck_result: Default::default(), region_constraint_data: None } diff --git a/tests/ui/dropck/dropck-after-failed-type-lowering.rs b/tests/ui/dropck/dropck-after-failed-type-lowering.rs new file mode 100644 index 000000000000..2441e26fec96 --- /dev/null +++ b/tests/ui/dropck/dropck-after-failed-type-lowering.rs @@ -0,0 +1,14 @@ +// Regression test for #137329 + +trait B { + type C<'a>; + fn d() -> F { + todo!() + } +} +struct F { + h: Option<::C>, + //~^ ERROR missing generics for associated type `B::C` +} + +fn main() {} diff --git a/tests/ui/dropck/dropck-after-failed-type-lowering.stderr b/tests/ui/dropck/dropck-after-failed-type-lowering.stderr new file mode 100644 index 000000000000..56ea72de0c5f --- /dev/null +++ b/tests/ui/dropck/dropck-after-failed-type-lowering.stderr @@ -0,0 +1,19 @@ +error[E0107]: missing generics for associated type `B::C` + --> $DIR/dropck-after-failed-type-lowering.rs:10:25 + | +LL | h: Option<::C>, + | ^ expected 1 lifetime argument + | +note: associated type defined here, with 1 lifetime parameter: `'a` + --> $DIR/dropck-after-failed-type-lowering.rs:4:10 + | +LL | type C<'a>; + | ^ -- +help: add missing lifetime argument + | +LL | h: Option<::C<'a>>, + | ++++ + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0107`.