From 3cd065d3d358c0124368f21a7deb0e75712c286b Mon Sep 17 00:00:00 2001 From: Kivooeo Date: Fri, 2 May 2025 21:28:11 +0500 Subject: [PATCH 01/46] macro expansion issue --- .../rustc_hir_typeck/src/fn_ctxt/checks.rs | 27 ++--- tests/ui/auxiliary/delegate_macro.rs | 6 ++ tests/ui/not-enough-arguments.rs | 54 +++++++--- tests/ui/not-enough-arguments.stderr | 100 +++++++++++++----- 4 files changed, 128 insertions(+), 59 deletions(-) create mode 100644 tests/ui/auxiliary/delegate_macro.rs diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs index 8b2d9ab29790..0a0967941aab 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs @@ -1546,25 +1546,20 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { SuggestionText::Reorder => Some("reorder these arguments".to_string()), SuggestionText::DidYouMean => Some("did you mean".to_string()), }; - if let Some(suggestion_text) = suggestion_text { + if let Some(suggestion_text) = suggestion_text + && !full_call_span.in_external_macro(self.sess().source_map()) + { let source_map = self.sess().source_map(); - let (mut suggestion, suggestion_span) = if let Some(call_span) = - full_call_span.find_ancestor_inside_same_ctxt(error_span) - { - ("(".to_string(), call_span.shrink_to_hi().to(error_span.shrink_to_hi())) + let suggestion_span = if let Some(args_span) = error_span.trim_start(full_call_span) { + // Span of the braces, e.g. `(a, b, c)`. + args_span } else { - ( - format!( - "{}(", - source_map.span_to_snippet(full_call_span).unwrap_or_else(|_| { - fn_def_id.map_or("".to_string(), |fn_def_id| { - tcx.item_name(fn_def_id).to_string() - }) - }) - ), - error_span, - ) + // The arg span of a function call that wasn't even given braces + // like what might happen with delegation reuse. + // e.g. `reuse HasSelf::method;` should suggest `reuse HasSelf::method($args);`. + full_call_span.shrink_to_hi() }; + let mut suggestion = "(".to_owned(); let mut needs_comma = false; for (expected_idx, provided_idx) in matched_inputs.iter_enumerated() { if needs_comma { diff --git a/tests/ui/auxiliary/delegate_macro.rs b/tests/ui/auxiliary/delegate_macro.rs new file mode 100644 index 000000000000..0d752e120395 --- /dev/null +++ b/tests/ui/auxiliary/delegate_macro.rs @@ -0,0 +1,6 @@ +#[macro_export] +macro_rules! delegate { + ($method:ident) => { + ::$method(8) + }; +} diff --git a/tests/ui/not-enough-arguments.rs b/tests/ui/not-enough-arguments.rs index 4a2ea5e44c71..ec660a1de81b 100644 --- a/tests/ui/not-enough-arguments.rs +++ b/tests/ui/not-enough-arguments.rs @@ -1,20 +1,16 @@ +//@ aux-build: delegate_macro.rs +extern crate delegate_macro; +use delegate_macro::delegate; + // Check that the only error msg we report is the // mismatch between the # of params, and not other // unrelated errors. - -fn foo(a: isize, b: isize, c: isize, d:isize) { - panic!(); +fn foo(a: isize, b: isize, c: isize, d: isize) { + panic!(); } // Check that all arguments are shown in the error message, even if they're across multiple lines. -fn bar( - a: i32, - b: i32, - c: i32, - d: i32, - e: i32, - f: i32, -) { +fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) { println!("{}", a); println!("{}", b); println!("{}", c); @@ -23,9 +19,35 @@ fn bar( println!("{}", f); } -fn main() { - foo(1, 2, 3); - //~^ ERROR function takes 4 arguments but 3 - bar(1, 2, 3); - //~^ ERROR function takes 6 arguments but 3 +macro_rules! delegate_local { + ($method:ident) => { + ::$method(8) + //~^ ERROR function takes 2 arguments but 1 + }; +} + +macro_rules! delegate_from { + ($from:ident, $method:ident) => { + <$from>::$method(8) + //~^ ERROR function takes 2 arguments but 1 + }; +} + +struct Bar; + +impl Bar { + fn foo(a: u8, b: u8) {} + fn bar() { + delegate_local!(foo); + delegate!(foo); + //~^ ERROR function takes 2 arguments but 1 + delegate_from!(Bar, foo); + } +} + +fn main() { + foo(1, 2, 3); + //~^ ERROR function takes 4 arguments but 3 + bar(1, 2, 3); + //~^ ERROR function takes 6 arguments but 3 } diff --git a/tests/ui/not-enough-arguments.stderr b/tests/ui/not-enough-arguments.stderr index 099d82eb9355..908d0273bbec 100644 --- a/tests/ui/not-enough-arguments.stderr +++ b/tests/ui/not-enough-arguments.stderr @@ -1,42 +1,88 @@ -error[E0061]: this function takes 4 arguments but 3 arguments were supplied - --> $DIR/not-enough-arguments.rs:27:3 +error[E0061]: this function takes 2 arguments but 1 argument was supplied + --> $DIR/not-enough-arguments.rs:24:9 | -LL | foo(1, 2, 3); - | ^^^--------- argument #4 of type `isize` is missing +LL | ::$method(8) + | ^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing +... +LL | delegate_local!(foo); + | -------------------- in this macro invocation | -note: function defined here - --> $DIR/not-enough-arguments.rs:5:4 +note: associated function defined here + --> $DIR/not-enough-arguments.rs:39:8 | -LL | fn foo(a: isize, b: isize, c: isize, d:isize) { - | ^^^ ------- +LL | fn foo(a: u8, b: u8) {} + | ^^^ ----- + = note: this error originates in the macro `delegate_local` (in Nightly builds, run with -Z macro-backtrace for more info) help: provide the argument | -LL | foo(1, 2, 3, /* isize */); - | +++++++++++++ +LL | ::$method(8, /* u8 */) + | ++++++++++ -error[E0061]: this function takes 6 arguments but 3 arguments were supplied - --> $DIR/not-enough-arguments.rs:29:3 +error[E0061]: this function takes 2 arguments but 1 argument was supplied + --> $DIR/not-enough-arguments.rs:42:9 | -LL | bar(1, 2, 3); - | ^^^--------- three arguments of type `i32`, `i32`, and `i32` are missing +LL | delegate!(foo); + | ^^^^^^^^^^^^^^ argument #2 of type `u8` is missing + | +note: associated function defined here + --> $DIR/not-enough-arguments.rs:39:8 + | +LL | fn foo(a: u8, b: u8) {} + | ^^^ ----- + = note: this error originates in the macro `delegate` (in Nightly builds, run with -Z macro-backtrace for more info) + +error[E0061]: this function takes 2 arguments but 1 argument was supplied + --> $DIR/not-enough-arguments.rs:31:9 + | +LL | <$from>::$method(8) + | ^^^^^^^^^^^^^^^^--- argument #2 of type `u8` is missing +... +LL | delegate_from!(Bar, foo); + | ------------------------ in this macro invocation + | +note: associated function defined here + --> $DIR/not-enough-arguments.rs:39:8 + | +LL | fn foo(a: u8, b: u8) {} + | ^^^ ----- + = note: this error originates in the macro `delegate_from` (in Nightly builds, run with -Z macro-backtrace for more info) +help: provide the argument + | +LL | <$from>::$method(8, /* u8 */) + | ++++++++++ + +error[E0061]: this function takes 4 arguments but 3 arguments were supplied + --> $DIR/not-enough-arguments.rs:49:5 + | +LL | foo(1, 2, 3); + | ^^^--------- argument #4 of type `isize` is missing | note: function defined here - --> $DIR/not-enough-arguments.rs:10:4 + --> $DIR/not-enough-arguments.rs:8:4 | -LL | fn bar( - | ^^^ -... -LL | d: i32, - | ------ -LL | e: i32, - | ------ -LL | f: i32, - | ------ +LL | fn foo(a: isize, b: isize, c: isize, d: isize) { + | ^^^ -------- +help: provide the argument + | +LL | foo(1, 2, 3, /* isize */); + | +++++++++++++ + +error[E0061]: this function takes 6 arguments but 3 arguments were supplied + --> $DIR/not-enough-arguments.rs:51:5 + | +LL | bar(1, 2, 3); + | ^^^--------- three arguments of type `i32`, `i32`, and `i32` are missing + | +note: function defined here + --> $DIR/not-enough-arguments.rs:13:4 + | +LL | fn bar(a: i32, b: i32, c: i32, d: i32, e: i32, f: i32) { + | ^^^ ------ ------ ------ help: provide the arguments | -LL | bar(1, 2, 3, /* i32 */, /* i32 */, /* i32 */); - | +++++++++++++++++++++++++++++++++ +LL | bar(1, 2, 3, /* i32 */, /* i32 */, /* i32 */); + | +++++++++++++++++++++++++++++++++ -error: aborting due to 2 previous errors +error: aborting due to 5 previous errors For more information about this error, try `rustc --explain E0061`. From be5d6c5425e8dfdf1662225fb23d6deb0e124dd4 Mon Sep 17 00:00:00 2001 From: dianqk Date: Mon, 19 May 2025 21:07:34 +0800 Subject: [PATCH 02/46] gvn: bail out unavoidable non-ssa locals in repeat We cannot transform `*elem` to `array[idx1]` in the following code, as `idx1` has already been modified. ```rust mir! { let array; let elem; { array = [*val; 5]; elem = &array[idx1]; idx1 = idx2; RET = *elem; Return() } } ``` --- compiler/rustc_mir_transform/src/gvn.rs | 8 ++- .../mir-opt/gvn_repeat.repeat_local.GVN.diff | 18 +++++++ .../mir-opt/gvn_repeat.repeat_place.GVN.diff | 17 +++++++ tests/mir-opt/gvn_repeat.rs | 49 +++++++++++++++++++ 4 files changed, 91 insertions(+), 1 deletion(-) create mode 100644 tests/mir-opt/gvn_repeat.repeat_local.GVN.diff create mode 100644 tests/mir-opt/gvn_repeat.repeat_place.GVN.diff create mode 100644 tests/mir-opt/gvn_repeat.rs diff --git a/compiler/rustc_mir_transform/src/gvn.rs b/compiler/rustc_mir_transform/src/gvn.rs index 209e818e9e32..a91d46ec406e 100644 --- a/compiler/rustc_mir_transform/src/gvn.rs +++ b/compiler/rustc_mir_transform/src/gvn.rs @@ -638,6 +638,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { place: PlaceRef<'tcx>, value: VnIndex, proj: PlaceElem<'tcx>, + from_non_ssa_index: &mut bool, ) -> Option { let proj = match proj { ProjectionElem::Deref => { @@ -682,6 +683,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } ProjectionElem::Index(idx) => { if let Value::Repeat(inner, _) = self.get(value) { + *from_non_ssa_index |= self.locals[idx].is_none(); return Some(*inner); } let idx = self.locals[idx]?; @@ -774,6 +776,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { // Invariant: `value` holds the value up-to the `index`th projection excluded. let mut value = self.locals[place.local]?; + let mut from_non_ssa_index = false; for (index, proj) in place.projection.iter().enumerate() { if let Value::Projection(pointer, ProjectionElem::Deref) = *self.get(value) && let Value::Address { place: mut pointee, kind, .. } = *self.get(pointer) @@ -791,7 +794,7 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } let base = PlaceRef { local: place.local, projection: &place.projection[..index] }; - value = self.project(base, value, proj)?; + value = self.project(base, value, proj, &mut from_non_ssa_index)?; } if let Value::Projection(pointer, ProjectionElem::Deref) = *self.get(value) @@ -804,6 +807,9 @@ impl<'body, 'tcx> VnState<'body, 'tcx> { } if let Some(new_local) = self.try_as_local(value, location) { place_ref = PlaceRef { local: new_local, projection: &[] }; + } else if from_non_ssa_index { + // If access to non-SSA locals is unavoidable, bail out. + return None; } if place_ref.local != place.local || place_ref.projection.len() < place.projection.len() { diff --git a/tests/mir-opt/gvn_repeat.repeat_local.GVN.diff b/tests/mir-opt/gvn_repeat.repeat_local.GVN.diff new file mode 100644 index 000000000000..fd0478252811 --- /dev/null +++ b/tests/mir-opt/gvn_repeat.repeat_local.GVN.diff @@ -0,0 +1,18 @@ +- // MIR for `repeat_local` before GVN ++ // MIR for `repeat_local` after GVN + + fn repeat_local(_1: usize, _2: usize, _3: i32) -> i32 { + let mut _0: i32; + let mut _4: [i32; 5]; + let mut _5: &i32; + + bb0: { + _4 = [copy _3; 5]; + _5 = &_4[_1]; + _1 = copy _2; +- _0 = copy (*_5); ++ _0 = copy _3; + return; + } + } + diff --git a/tests/mir-opt/gvn_repeat.repeat_place.GVN.diff b/tests/mir-opt/gvn_repeat.repeat_place.GVN.diff new file mode 100644 index 000000000000..e490925bc119 --- /dev/null +++ b/tests/mir-opt/gvn_repeat.repeat_place.GVN.diff @@ -0,0 +1,17 @@ +- // MIR for `repeat_place` before GVN ++ // MIR for `repeat_place` after GVN + + fn repeat_place(_1: usize, _2: usize, _3: &i32) -> i32 { + let mut _0: i32; + let mut _4: [i32; 5]; + let mut _5: &i32; + + bb0: { + _4 = [copy (*_3); 5]; + _5 = &_4[_1]; + _1 = copy _2; + _0 = copy (*_5); + return; + } + } + diff --git a/tests/mir-opt/gvn_repeat.rs b/tests/mir-opt/gvn_repeat.rs new file mode 100644 index 000000000000..bbbb2a7ccbaf --- /dev/null +++ b/tests/mir-opt/gvn_repeat.rs @@ -0,0 +1,49 @@ +//@ test-mir-pass: GVN + +#![feature(custom_mir, core_intrinsics)] + +// Check that we do not introduce out-of-bounds access. + +use std::intrinsics::mir::*; + +// EMIT_MIR gvn_repeat.repeat_place.GVN.diff +#[custom_mir(dialect = "runtime")] +pub fn repeat_place(mut idx1: usize, idx2: usize, val: &i32) -> i32 { + // CHECK-LABEL: fn repeat_place( + // CHECK: let mut [[ELEM:.*]]: &i32; + // CHECK: _0 = copy (*[[ELEM]]) + mir! { + let array; + let elem; + { + array = [*val; 5]; + elem = &array[idx1]; + idx1 = idx2; + RET = *elem; + Return() + } + } +} + +// EMIT_MIR gvn_repeat.repeat_local.GVN.diff +#[custom_mir(dialect = "runtime")] +pub fn repeat_local(mut idx1: usize, idx2: usize, val: i32) -> i32 { + // CHECK-LABEL: fn repeat_local( + // CHECK: _0 = copy _3 + mir! { + let array; + let elem; + { + array = [val; 5]; + elem = &array[idx1]; + idx1 = idx2; + RET = *elem; + Return() + } + } +} + +fn main() { + assert_eq!(repeat_place(0, 5, &0), 0); + assert_eq!(repeat_local(0, 5, 0), 0); +} From 9febbf827088cc8e94b2799e6c5976997bb88c65 Mon Sep 17 00:00:00 2001 From: Christopher Berner Date: Tue, 6 May 2025 20:18:06 -0700 Subject: [PATCH 03/46] Remove unnecessary handling of ERROR_IO_PENDING try_lock() and try_lock_shared() do not need to handle these per the discussion in https://github.com/rust-lang/rust/pull/140718#discussion_r2076678485 --- library/std/src/fs/tests.rs | 22 ++++++++++++++++++++++ library/std/src/sys/fs/windows.rs | 10 ++-------- 2 files changed, 24 insertions(+), 8 deletions(-) diff --git a/library/std/src/fs/tests.rs b/library/std/src/fs/tests.rs index 46b0d832fec4..49f99351c8aa 100644 --- a/library/std/src/fs/tests.rs +++ b/library/std/src/fs/tests.rs @@ -366,6 +366,28 @@ fn file_lock_blocking_async() { t.join().unwrap(); } +#[test] +#[cfg(windows)] +fn file_try_lock_async() { + const FILE_FLAG_OVERLAPPED: u32 = 0x40000000; + + let tmpdir = tmpdir(); + let filename = &tmpdir.join("file_try_lock_async.txt"); + let f1 = check!(File::create(filename)); + let f2 = + check!(OpenOptions::new().custom_flags(FILE_FLAG_OVERLAPPED).write(true).open(filename)); + + // Check that shared locks block exclusive locks + check!(f1.lock_shared()); + assert_matches!(f2.try_lock(), Err(TryLockError::WouldBlock)); + check!(f1.unlock()); + + // Check that exclusive locks block all locks + check!(f1.lock()); + assert_matches!(f2.try_lock(), Err(TryLockError::WouldBlock)); + assert_matches!(f2.try_lock_shared(), Err(TryLockError::WouldBlock)); +} + #[test] fn file_test_io_seek_shakedown() { // 01234567890123 diff --git a/library/std/src/sys/fs/windows.rs b/library/std/src/sys/fs/windows.rs index 9039fd00f5d6..d01a572ac733 100644 --- a/library/std/src/sys/fs/windows.rs +++ b/library/std/src/sys/fs/windows.rs @@ -415,10 +415,7 @@ impl File { match result { Ok(_) => Ok(()), - Err(err) - if err.raw_os_error() == Some(c::ERROR_IO_PENDING as i32) - || err.raw_os_error() == Some(c::ERROR_LOCK_VIOLATION as i32) => - { + Err(err) if err.raw_os_error() == Some(c::ERROR_LOCK_VIOLATION as i32) => { Err(TryLockError::WouldBlock) } Err(err) => Err(TryLockError::Error(err)), @@ -440,10 +437,7 @@ impl File { match result { Ok(_) => Ok(()), - Err(err) - if err.raw_os_error() == Some(c::ERROR_IO_PENDING as i32) - || err.raw_os_error() == Some(c::ERROR_LOCK_VIOLATION as i32) => - { + Err(err) if err.raw_os_error() == Some(c::ERROR_LOCK_VIOLATION as i32) => { Err(TryLockError::WouldBlock) } Err(err) => Err(TryLockError::Error(err)), From fd260d530b880c44874340eaf2e31666a138a874 Mon Sep 17 00:00:00 2001 From: Christopher Berner Date: Tue, 20 May 2025 14:04:38 -0700 Subject: [PATCH 04/46] Add From for io::Error This makes error propagation from try_lock() and try_lock_shared() more convenient --- library/std/src/fs.rs | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs index 11f439b9996d..4be52ac1eb38 100644 --- a/library/std/src/fs.rs +++ b/library/std/src/fs.rs @@ -392,6 +392,16 @@ impl fmt::Display for TryLockError { } } +#[unstable(feature = "file_lock", issue = "130994")] +impl From for io::Error { + fn from(err: TryLockError) -> io::Error { + match err { + TryLockError::Error(err) => err, + TryLockError::WouldBlock => io::ErrorKind::WouldBlock.into(), + } + } +} + impl File { /// Attempts to open a file in read-only mode. /// @@ -821,11 +831,14 @@ impl File { /// /// fn main() -> std::io::Result<()> { /// let f = File::create("foo.txt")?; + /// // Explicit handling of the WouldBlock error /// match f.try_lock() { /// Ok(_) => (), /// Err(TryLockError::WouldBlock) => (), // Lock not acquired /// Err(TryLockError::Error(err)) => return Err(err), /// } + /// // Alternately, propagate the error as an io::Error + /// f.try_lock()?; /// Ok(()) /// } /// ``` @@ -882,11 +895,14 @@ impl File { /// /// fn main() -> std::io::Result<()> { /// let f = File::open("foo.txt")?; + /// // Explicit handling of the WouldBlock error /// match f.try_lock_shared() { /// Ok(_) => (), /// Err(TryLockError::WouldBlock) => (), // Lock not acquired /// Err(TryLockError::Error(err)) => return Err(err), /// } + /// // Alternately, propagate the error as an io::Error + /// f.try_lock_shared()?; /// /// Ok(()) /// } From e36dc78edd4f166953afc0530500d589894ac412 Mon Sep 17 00:00:00 2001 From: Ben Kimock Date: Tue, 27 Aug 2024 11:05:45 -0400 Subject: [PATCH 05/46] Add some track_caller info to precondition panics --- library/core/src/alloc/layout.rs | 1 + library/core/src/ascii/ascii_char.rs | 1 + library/core/src/char/convert.rs | 1 + library/core/src/hint.rs | 2 +- library/core/src/intrinsics/mod.rs | 2 +- library/core/src/num/int_macros.rs | 12 +++--- library/core/src/num/nonzero.rs | 2 + library/core/src/num/uint_macros.rs | 10 ++--- library/core/src/ops/index_range.rs | 1 + library/core/src/ptr/alignment.rs | 1 + library/core/src/ptr/const_ptr.rs | 26 ++++++------- library/core/src/ptr/mod.rs | 14 ++++--- library/core/src/ptr/mut_ptr.rs | 38 +++++++++---------- library/core/src/ptr/non_null.rs | 1 + library/core/src/slice/index.rs | 6 +++ library/core/src/slice/mod.rs | 8 ++++ library/core/src/slice/raw.rs | 3 ++ library/core/src/str/traits.rs | 4 ++ library/core/src/ub_checks.rs | 6 ++- .../tests/fail/ptr_swap_nonoverlapping.stderr | 5 +-- ...ng_operand.test.GVN.32bit.panic-abort.diff | 2 +- ...ng_operand.test.GVN.64bit.panic-abort.diff | 2 +- tests/mir-opt/inline/unchecked_shifts.rs | 4 +- ...l_unsigned_smaller.Inline.panic-abort.diff | 2 +- ..._unsigned_smaller.Inline.panic-unwind.diff | 2 +- ...d_smaller.PreCodegen.after.panic-abort.mir | 2 +- ..._smaller.PreCodegen.after.panic-unwind.mir | 2 +- ..._shr_signed_bigger.Inline.panic-abort.diff | 2 +- ...shr_signed_bigger.Inline.panic-unwind.diff | 2 +- ...ed_bigger.PreCodegen.after.panic-abort.mir | 2 +- ...d_bigger.PreCodegen.after.panic-unwind.mir | 2 +- ...d.unwrap_unchecked.Inline.panic-abort.diff | 2 +- ....unwrap_unchecked.Inline.panic-unwind.diff | 2 +- ...unchecked.PreCodegen.after.panic-abort.mir | 2 +- ...nchecked.PreCodegen.after.panic-unwind.mir | 2 +- ...hecked.InstSimplify-after-simplifycfg.diff | 2 +- ...ecked_shl.PreCodegen.after.panic-abort.mir | 2 +- ...cked_shl.PreCodegen.after.panic-unwind.mir | 2 +- ...witch_targets.ub_if_b.PreCodegen.after.mir | 2 +- .../loops.int_range.PreCodegen.after.mir | 2 +- ...e_add_fat.PreCodegen.after.panic-abort.mir | 4 +- ..._add_fat.PreCodegen.after.panic-unwind.mir | 4 +- ..._add_thin.PreCodegen.after.panic-abort.mir | 4 +- ...add_thin.PreCodegen.after.panic-unwind.mir | 4 +- ...ward_loop.PreCodegen.after.panic-abort.mir | 2 +- ...ard_loop.PreCodegen.after.panic-unwind.mir | 2 +- ...iter_next.PreCodegen.after.panic-abort.mir | 2 +- ...ter_next.PreCodegen.after.panic-unwind.mir | 2 +- ...mut_range.PreCodegen.after.panic-abort.mir | 4 +- ...ut_range.PreCodegen.after.panic-unwind.mir | 4 +- ...ked_range.PreCodegen.after.panic-abort.mir | 2 +- ...ed_range.PreCodegen.after.panic-unwind.mir | 2 +- ...ated_loop.PreCodegen.after.panic-abort.mir | 4 +- ...ted_loop.PreCodegen.after.panic-unwind.mir | 2 +- ...ward_loop.PreCodegen.after.panic-abort.mir | 4 +- ...ard_loop.PreCodegen.after.panic-unwind.mir | 4 +- ...ange_loop.PreCodegen.after.panic-abort.mir | 2 +- ...nge_loop.PreCodegen.after.panic-unwind.mir | 2 +- ...erse_loop.PreCodegen.after.panic-abort.mir | 2 +- ...rse_loop.PreCodegen.after.panic-unwind.mir | 2 +- ...iter_next.PreCodegen.after.panic-abort.mir | 2 +- ...ter_next.PreCodegen.after.panic-unwind.mir | 2 +- ..._to_slice.PreCodegen.after.panic-abort.mir | 2 +- ...to_slice.PreCodegen.after.panic-unwind.mir | 2 +- tests/ui/const-ptr/forbidden_slices.stderr | 21 ---------- tests/ui/const-ptr/out_of_bounds_read.stderr | 13 ------- tests/ui/consts/const-eval/raw-pointer-ub.rs | 1 - .../consts/const-eval/raw-pointer-ub.stderr | 6 +-- tests/ui/consts/const-eval/ub-ref-ptr.stderr | 5 --- .../ui/consts/const_unsafe_unreachable_ub.rs | 5 ++- .../consts/const_unsafe_unreachable_ub.stderr | 6 +-- tests/ui/consts/issue-miri-1910.stderr | 4 -- .../consts/missing_span_in_backtrace.stderr | 3 -- tests/ui/consts/offset_ub.stderr | 33 ---------------- .../interpret-in-promoted.noopt.stderr | 4 +- .../interpret-in-promoted.opt.stderr | 4 +- .../ui/print_type_sizes/niche-filling.stdout | 25 ++++++++++++ 77 files changed, 175 insertions(+), 207 deletions(-) diff --git a/library/core/src/alloc/layout.rs b/library/core/src/alloc/layout.rs index e8a03aadc339..380f67f91f94 100644 --- a/library/core/src/alloc/layout.rs +++ b/library/core/src/alloc/layout.rs @@ -126,6 +126,7 @@ impl Layout { #[rustc_const_stable(feature = "const_alloc_layout_unchecked", since = "1.36.0")] #[must_use] #[inline] + #[track_caller] pub const unsafe fn from_size_align_unchecked(size: usize, align: usize) -> Self { assert_unsafe_precondition!( check_library_ub, diff --git a/library/core/src/ascii/ascii_char.rs b/library/core/src/ascii/ascii_char.rs index 48de4f17b1b3..0b72b4780f16 100644 --- a/library/core/src/ascii/ascii_char.rs +++ b/library/core/src/ascii/ascii_char.rs @@ -503,6 +503,7 @@ impl AsciiChar { /// something useful. It might be tightened before stabilization.) #[unstable(feature = "ascii_char", issue = "110998")] #[inline] + #[track_caller] pub const unsafe fn digit_unchecked(d: u8) -> Self { assert_unsafe_precondition!( check_language_ub, diff --git a/library/core/src/char/convert.rs b/library/core/src/char/convert.rs index fd17f92f7be0..78cd89fefae7 100644 --- a/library/core/src/char/convert.rs +++ b/library/core/src/char/convert.rs @@ -22,6 +22,7 @@ pub(super) const fn from_u32(i: u32) -> Option { #[inline] #[must_use] #[allow(unnecessary_transmutes)] +#[track_caller] pub(super) const unsafe fn from_u32_unchecked(i: u32) -> char { // SAFETY: the caller must guarantee that `i` is a valid char value. unsafe { diff --git a/library/core/src/hint.rs b/library/core/src/hint.rs index 6eefb3046893..435b610feb91 100644 --- a/library/core/src/hint.rs +++ b/library/core/src/hint.rs @@ -98,7 +98,7 @@ use crate::{intrinsics, ub_checks}; #[inline] #[stable(feature = "unreachable", since = "1.27.0")] #[rustc_const_stable(feature = "const_unreachable_unchecked", since = "1.57.0")] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] pub const unsafe fn unreachable_unchecked() -> ! { ub_checks::assert_unsafe_precondition!( check_language_ub, diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 23bafa778bc6..ca9f4f38bf39 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -2634,7 +2634,7 @@ pub const fn three_way_compare(lhs: T, rhss: T) -> crate::cmp::Ordering #[rustc_const_unstable(feature = "disjoint_bitor", issue = "135758")] #[rustc_nounwind] #[rustc_intrinsic] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] #[miri::intrinsic_fallback_is_spec] // the fallbacks all `assume` to tell Miri pub const unsafe fn disjoint_bitor(a: T, b: T) -> T { // SAFETY: same preconditions as this function. diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs index 84e1482ed31d..f320a194271e 100644 --- a/library/core/src/num/int_macros.rs +++ b/library/core/src/num/int_macros.rs @@ -555,7 +555,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_add(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -705,7 +705,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_sub(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -855,7 +855,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_mul(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -1199,7 +1199,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_neg(self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -1327,7 +1327,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_shl(self, rhs: u32) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -1448,7 +1448,7 @@ macro_rules! int_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_shr(self, rhs: u32) -> Self { assert_unsafe_precondition!( check_language_ub, diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs index 8a8b2733d5e8..a279f002772e 100644 --- a/library/core/src/num/nonzero.rs +++ b/library/core/src/num/nonzero.rs @@ -388,6 +388,7 @@ where #[rustc_const_stable(feature = "nonzero", since = "1.28.0")] #[must_use] #[inline] + #[track_caller] pub const unsafe fn new_unchecked(n: T) -> Self { match Self::new(n) { Some(n) => n, @@ -428,6 +429,7 @@ where #[unstable(feature = "nonzero_from_mut", issue = "106290")] #[must_use] #[inline] + #[track_caller] pub unsafe fn from_mut_unchecked(n: &mut T) -> &mut Self { match Self::from_mut(n) { Some(n) => n, diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs index f38d809c1544..10597854ff87 100644 --- a/library/core/src/num/uint_macros.rs +++ b/library/core/src/num/uint_macros.rs @@ -601,7 +601,7 @@ macro_rules! uint_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_add(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -791,7 +791,7 @@ macro_rules! uint_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_sub(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -974,7 +974,7 @@ macro_rules! uint_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_mul(self, rhs: Self) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -1588,7 +1588,7 @@ macro_rules! uint_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_shl(self, rhs: u32) -> Self { assert_unsafe_precondition!( check_language_ub, @@ -1709,7 +1709,7 @@ macro_rules! uint_impl { #[must_use = "this returns the result of the operation, \ without modifying the original"] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn unchecked_shr(self, rhs: u32) -> Self { assert_unsafe_precondition!( check_language_ub, diff --git a/library/core/src/ops/index_range.rs b/library/core/src/ops/index_range.rs index c645c996eb70..507fa9460bea 100644 --- a/library/core/src/ops/index_range.rs +++ b/library/core/src/ops/index_range.rs @@ -19,6 +19,7 @@ impl IndexRange { /// # Safety /// - `start <= end` #[inline] + #[track_caller] pub(crate) const unsafe fn new_unchecked(start: usize, end: usize) -> Self { ub_checks::assert_unsafe_precondition!( check_library_ub, diff --git a/library/core/src/ptr/alignment.rs b/library/core/src/ptr/alignment.rs index 19311e39b454..3e66e271f03b 100644 --- a/library/core/src/ptr/alignment.rs +++ b/library/core/src/ptr/alignment.rs @@ -73,6 +73,7 @@ impl Alignment { /// It must *not* be zero. #[unstable(feature = "ptr_alignment_type", issue = "102070")] #[inline] + #[track_caller] pub const unsafe fn new_unchecked(align: usize) -> Self { assert_unsafe_precondition!( check_language_ub, diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index f6109cafe86b..fe4eb48132de 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -444,7 +444,7 @@ impl *const T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn offset(self, count: isize) -> *const T where T: Sized, @@ -497,7 +497,7 @@ impl *const T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_offset(self, count: isize) -> Self { // SAFETY: the caller must uphold the safety contract for `offset`. unsafe { self.cast::().offset(count).with_metadata_of(self) } @@ -796,7 +796,7 @@ impl *const T { #[stable(feature = "ptr_sub_ptr", since = "1.87.0")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "1.87.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn offset_from_unsigned(self, origin: *const T) -> usize where T: Sized, @@ -841,7 +841,7 @@ impl *const T { #[stable(feature = "ptr_sub_ptr", since = "1.87.0")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "1.87.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_offset_from_unsigned(self, origin: *const U) -> usize { // SAFETY: the caller must uphold the safety contract for `offset_from_unsigned`. unsafe { self.cast::().offset_from_unsigned(origin.cast::()) } @@ -955,7 +955,7 @@ impl *const T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn add(self, count: usize) -> Self where T: Sized, @@ -1007,7 +1007,7 @@ impl *const T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_add(self, count: usize) -> Self { // SAFETY: the caller must uphold the safety contract for `add`. unsafe { self.cast::().add(count).with_metadata_of(self) } @@ -1061,7 +1061,7 @@ impl *const T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn sub(self, count: usize) -> Self where T: Sized, @@ -1119,7 +1119,7 @@ impl *const T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_sub(self, count: usize) -> Self { // SAFETY: the caller must uphold the safety contract for `sub`. unsafe { self.cast::().sub(count).with_metadata_of(self) } @@ -1292,7 +1292,7 @@ impl *const T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn read(self) -> T where T: Sized, @@ -1313,7 +1313,7 @@ impl *const T { /// [`ptr::read_volatile`]: crate::ptr::read_volatile() #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub unsafe fn read_volatile(self) -> T where T: Sized, @@ -1333,7 +1333,7 @@ impl *const T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn read_unaligned(self) -> T where T: Sized, @@ -1353,7 +1353,7 @@ impl *const T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_to(self, dest: *mut T, count: usize) where T: Sized, @@ -1373,7 +1373,7 @@ impl *const T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_to_nonoverlapping(self, dest: *mut T, count: usize) where T: Sized, diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs index 35a909f6904c..99c4211cea86 100644 --- a/library/core/src/ptr/mod.rs +++ b/library/core/src/ptr/mod.rs @@ -1377,6 +1377,7 @@ pub const unsafe fn swap(x: *mut T, y: *mut T) { #[rustc_const_stable(feature = "const_swap_nonoverlapping", since = "1.88.0")] #[rustc_diagnostic_item = "ptr_swap_nonoverlapping"] #[rustc_allow_const_fn_unstable(const_eval_select)] // both implementations behave the same +#[track_caller] pub const unsafe fn swap_nonoverlapping(x: *mut T, y: *mut T, count: usize) { ub_checks::assert_unsafe_precondition!( check_library_ub, @@ -1557,6 +1558,7 @@ unsafe fn swap_nonoverlapping_bytes(x: *mut u8, y: *mut u8, bytes: NonZero(dst: *mut T, src: T) -> T { // SAFETY: the caller must guarantee that `dst` is valid to be // cast to a mutable reference (valid for writes, aligned, initialized), @@ -1684,7 +1686,7 @@ pub const unsafe fn replace(dst: *mut T, src: T) -> T { #[inline] #[stable(feature = "rust1", since = "1.0.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] #[rustc_diagnostic_item = "ptr_read"] pub const unsafe fn read(src: *const T) -> T { // It would be semantically correct to implement this via `copy_nonoverlapping` @@ -1802,7 +1804,7 @@ pub const unsafe fn read(src: *const T) -> T { #[inline] #[stable(feature = "ptr_unaligned", since = "1.17.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] #[rustc_diagnostic_item = "ptr_read_unaligned"] pub const unsafe fn read_unaligned(src: *const T) -> T { let mut tmp = MaybeUninit::::uninit(); @@ -1901,7 +1903,7 @@ pub const unsafe fn read_unaligned(src: *const T) -> T { #[stable(feature = "rust1", since = "1.0.0")] #[rustc_const_stable(feature = "const_ptr_write", since = "1.83.0")] #[rustc_diagnostic_item = "ptr_write"] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] pub const unsafe fn write(dst: *mut T, src: T) { // Semantically, it would be fine for this to be implemented as a // `copy_nonoverlapping` and appropriate drop suppression of `src`. @@ -2005,7 +2007,7 @@ pub const unsafe fn write(dst: *mut T, src: T) { #[stable(feature = "ptr_unaligned", since = "1.17.0")] #[rustc_const_stable(feature = "const_ptr_write", since = "1.83.0")] #[rustc_diagnostic_item = "ptr_write_unaligned"] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] pub const unsafe fn write_unaligned(dst: *mut T, src: T) { // SAFETY: the caller must guarantee that `dst` is valid for writes. // `dst` cannot overlap `src` because the caller has mutable access @@ -2079,7 +2081,7 @@ pub const unsafe fn write_unaligned(dst: *mut T, src: T) { /// ``` #[inline] #[stable(feature = "volatile", since = "1.9.0")] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] #[rustc_diagnostic_item = "ptr_read_volatile"] pub unsafe fn read_volatile(src: *const T) -> T { // SAFETY: the caller must uphold the safety contract for `volatile_load`. @@ -2160,7 +2162,7 @@ pub unsafe fn read_volatile(src: *const T) -> T { #[inline] #[stable(feature = "volatile", since = "1.9.0")] #[rustc_diagnostic_item = "ptr_write_volatile"] -#[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces +#[track_caller] pub unsafe fn write_volatile(dst: *mut T, src: T) { // SAFETY: the caller must uphold the safety contract for `volatile_store`. unsafe { diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs index 2662a4fdc313..7a0452563f90 100644 --- a/library/core/src/ptr/mut_ptr.rs +++ b/library/core/src/ptr/mut_ptr.rs @@ -440,7 +440,7 @@ impl *mut T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn offset(self, count: isize) -> *mut T where T: Sized, @@ -495,7 +495,7 @@ impl *mut T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_offset(self, count: isize) -> Self { // SAFETY: the caller must uphold the safety contract for `offset`. unsafe { self.cast::().offset(count).with_metadata_of(self) } @@ -970,7 +970,7 @@ impl *mut T { #[stable(feature = "ptr_sub_ptr", since = "1.87.0")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "1.87.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn offset_from_unsigned(self, origin: *const T) -> usize where T: Sized, @@ -992,7 +992,7 @@ impl *mut T { #[stable(feature = "ptr_sub_ptr", since = "1.87.0")] #[rustc_const_stable(feature = "const_ptr_sub_ptr", since = "1.87.0")] #[inline] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_offset_from_unsigned(self, origin: *mut U) -> usize { // SAFETY: the caller must uphold the safety contract for `byte_offset_from_unsigned`. unsafe { (self as *const T).byte_offset_from_unsigned(origin) } @@ -1046,7 +1046,7 @@ impl *mut T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn add(self, count: usize) -> Self where T: Sized, @@ -1098,7 +1098,7 @@ impl *mut T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_add(self, count: usize) -> Self { // SAFETY: the caller must uphold the safety contract for `add`. unsafe { self.cast::().add(count).with_metadata_of(self) } @@ -1152,7 +1152,7 @@ impl *mut T { #[must_use = "returns a new pointer rather than modifying its argument"] #[rustc_const_stable(feature = "const_ptr_offset", since = "1.61.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn sub(self, count: usize) -> Self where T: Sized, @@ -1210,7 +1210,7 @@ impl *mut T { #[inline(always)] #[stable(feature = "pointer_byte_offsets", since = "1.75.0")] #[rustc_const_stable(feature = "const_pointer_byte_offsets", since = "1.75.0")] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn byte_sub(self, count: usize) -> Self { // SAFETY: the caller must uphold the safety contract for `sub`. unsafe { self.cast::().sub(count).with_metadata_of(self) } @@ -1377,7 +1377,7 @@ impl *mut T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn read(self) -> T where T: Sized, @@ -1398,7 +1398,7 @@ impl *mut T { /// [`ptr::read_volatile`]: crate::ptr::read_volatile() #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub unsafe fn read_volatile(self) -> T where T: Sized, @@ -1418,7 +1418,7 @@ impl *mut T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[rustc_const_stable(feature = "const_ptr_read", since = "1.71.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn read_unaligned(self) -> T where T: Sized, @@ -1438,7 +1438,7 @@ impl *mut T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_to(self, dest: *mut T, count: usize) where T: Sized, @@ -1458,7 +1458,7 @@ impl *mut T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_to_nonoverlapping(self, dest: *mut T, count: usize) where T: Sized, @@ -1478,7 +1478,7 @@ impl *mut T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_from(self, src: *const T, count: usize) where T: Sized, @@ -1498,7 +1498,7 @@ impl *mut T { #[rustc_const_stable(feature = "const_intrinsic_copy", since = "1.83.0")] #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub const unsafe fn copy_from_nonoverlapping(self, src: *const T, count: usize) where T: Sized, @@ -1528,7 +1528,7 @@ impl *mut T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[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 + #[track_caller] pub const unsafe fn write(self, val: T) where T: Sized, @@ -1547,7 +1547,7 @@ impl *mut T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[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 + #[track_caller] pub const unsafe fn write_bytes(self, val: u8, count: usize) where T: Sized, @@ -1568,7 +1568,7 @@ impl *mut T { /// [`ptr::write_volatile`]: crate::ptr::write_volatile() #[stable(feature = "pointer_methods", since = "1.26.0")] #[inline(always)] - #[cfg_attr(miri, track_caller)] // even without panics, this helps for Miri backtraces + #[track_caller] pub unsafe fn write_volatile(self, val: T) where T: Sized, @@ -1588,7 +1588,7 @@ impl *mut T { #[stable(feature = "pointer_methods", since = "1.26.0")] #[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 + #[track_caller] pub const unsafe fn write_unaligned(self, val: T) where T: Sized, diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs index bb344c6a0d31..1985526e4c97 100644 --- a/library/core/src/ptr/non_null.rs +++ b/library/core/src/ptr/non_null.rs @@ -216,6 +216,7 @@ impl NonNull { #[stable(feature = "nonnull", since = "1.25.0")] #[rustc_const_stable(feature = "const_nonnull_new_unchecked", since = "1.25.0")] #[inline] + #[track_caller] pub const unsafe fn new_unchecked(ptr: *mut T) -> Self { // SAFETY: the caller must guarantee that `ptr` is non-null. unsafe { diff --git a/library/core/src/slice/index.rs b/library/core/src/slice/index.rs index aafa19c0dd3d..644d22897deb 100644 --- a/library/core/src/slice/index.rs +++ b/library/core/src/slice/index.rs @@ -239,6 +239,7 @@ unsafe impl SliceIndex<[T]> for usize { } #[inline] + #[track_caller] unsafe fn get_unchecked(self, slice: *const [T]) -> *const T { assert_unsafe_precondition!( check_language_ub, @@ -258,6 +259,7 @@ unsafe impl SliceIndex<[T]> for usize { } #[inline] + #[track_caller] unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut T { assert_unsafe_precondition!( check_library_ub, @@ -307,6 +309,7 @@ unsafe impl SliceIndex<[T]> for ops::IndexRange { } #[inline] + #[track_caller] unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T] { assert_unsafe_precondition!( check_library_ub, @@ -321,6 +324,7 @@ unsafe impl SliceIndex<[T]> for ops::IndexRange { } #[inline] + #[track_caller] unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T] { assert_unsafe_precondition!( check_library_ub, @@ -386,6 +390,7 @@ unsafe impl SliceIndex<[T]> for ops::Range { } #[inline] + #[track_caller] unsafe fn get_unchecked(self, slice: *const [T]) -> *const [T] { assert_unsafe_precondition!( check_library_ub, @@ -410,6 +415,7 @@ unsafe impl SliceIndex<[T]> for ops::Range { } #[inline] + #[track_caller] unsafe fn get_unchecked_mut(self, slice: *mut [T]) -> *mut [T] { assert_unsafe_precondition!( check_library_ub, diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index c9b8231e856c..3339c71180d3 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -631,6 +631,7 @@ impl [T] { #[rustc_no_implicit_autorefs] #[inline] #[must_use] + #[track_caller] pub unsafe fn get_unchecked(&self, index: I) -> &I::Output where I: SliceIndex, @@ -674,6 +675,7 @@ impl [T] { #[rustc_no_implicit_autorefs] #[inline] #[must_use] + #[track_caller] pub unsafe fn get_unchecked_mut(&mut self, index: I) -> &mut I::Output where I: SliceIndex, @@ -935,6 +937,7 @@ impl [T] { /// [`swap`]: slice::swap /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html #[unstable(feature = "slice_swap_unchecked", issue = "88539")] + #[track_caller] pub const unsafe fn swap_unchecked(&mut self, a: usize, b: usize) { assert_unsafe_precondition!( check_library_ub, @@ -1307,6 +1310,7 @@ impl [T] { #[rustc_const_stable(feature = "slice_as_chunks", since = "1.88.0")] #[inline] #[must_use] + #[track_caller] pub const unsafe fn as_chunks_unchecked(&self) -> &[[T; N]] { assert_unsafe_precondition!( check_language_ub, @@ -1502,6 +1506,7 @@ impl [T] { #[rustc_const_stable(feature = "slice_as_chunks", since = "1.88.0")] #[inline] #[must_use] + #[track_caller] pub const unsafe fn as_chunks_unchecked_mut(&mut self) -> &mut [[T; N]] { assert_unsafe_precondition!( check_language_ub, @@ -2061,6 +2066,7 @@ impl [T] { #[rustc_const_stable(feature = "const_slice_split_at_unchecked", since = "1.77.0")] #[inline] #[must_use] + #[track_caller] pub const unsafe fn split_at_unchecked(&self, mid: usize) -> (&[T], &[T]) { // FIXME(const-hack): the const function `from_raw_parts` is used to make this // function const; previously the implementation used @@ -2114,6 +2120,7 @@ impl [T] { #[rustc_const_stable(feature = "const_slice_split_at_mut", since = "1.83.0")] #[inline] #[must_use] + #[track_caller] pub const unsafe fn split_at_mut_unchecked(&mut self, mid: usize) -> (&mut [T], &mut [T]) { let len = self.len(); let ptr = self.as_mut_ptr(); @@ -4642,6 +4649,7 @@ impl [T] { /// [undefined behavior]: https://doc.rust-lang.org/reference/behavior-considered-undefined.html #[stable(feature = "get_many_mut", since = "1.86.0")] #[inline] + #[track_caller] pub unsafe fn get_disjoint_unchecked_mut( &mut self, indices: [I; N], diff --git a/library/core/src/slice/raw.rs b/library/core/src/slice/raw.rs index 3582c7e8b3f3..40da69c15627 100644 --- a/library/core/src/slice/raw.rs +++ b/library/core/src/slice/raw.rs @@ -120,6 +120,7 @@ use crate::{array, ptr, ub_checks}; #[rustc_const_stable(feature = "const_slice_from_raw_parts", since = "1.64.0")] #[must_use] #[rustc_diagnostic_item = "slice_from_raw_parts"] +#[track_caller] pub const unsafe fn from_raw_parts<'a, T>(data: *const T, len: usize) -> &'a [T] { // SAFETY: the caller must uphold the safety contract for `from_raw_parts`. unsafe { @@ -174,6 +175,7 @@ pub const unsafe fn from_raw_parts<'a, T>(data: *const T, len: usize) -> &'a [T] #[rustc_const_stable(feature = "const_slice_from_raw_parts_mut", since = "1.83.0")] #[must_use] #[rustc_diagnostic_item = "slice_from_raw_parts_mut"] +#[track_caller] pub const unsafe fn from_raw_parts_mut<'a, T>(data: *mut T, len: usize) -> &'a mut [T] { // SAFETY: the caller must uphold the safety contract for `from_raw_parts_mut`. unsafe { @@ -270,6 +272,7 @@ pub const fn from_mut(s: &mut T) -> &mut [T] { /// [valid]: ptr#safety #[unstable(feature = "slice_from_ptr_range", issue = "89792")] #[rustc_const_unstable(feature = "const_slice_from_ptr_range", issue = "89792")] +#[track_caller] 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.offset_from_unsigned(range.start)) } diff --git a/library/core/src/str/traits.rs b/library/core/src/str/traits.rs index 77c70b978fd1..4baf9aacad7b 100644 --- a/library/core/src/str/traits.rs +++ b/library/core/src/str/traits.rs @@ -186,6 +186,7 @@ unsafe impl SliceIndex for ops::Range { } } #[inline] + #[track_caller] unsafe fn get_unchecked(self, slice: *const str) -> *const Self::Output { let slice = slice as *const [u8]; @@ -213,6 +214,7 @@ unsafe impl SliceIndex for ops::Range { } } #[inline] + #[track_caller] unsafe fn get_unchecked_mut(self, slice: *mut str) -> *mut Self::Output { let slice = slice as *mut [u8]; @@ -288,6 +290,7 @@ unsafe impl SliceIndex for range::Range { } } #[inline] + #[track_caller] unsafe fn get_unchecked(self, slice: *const str) -> *const Self::Output { let slice = slice as *const [u8]; @@ -315,6 +318,7 @@ unsafe impl SliceIndex for range::Range { } } #[inline] + #[track_caller] unsafe fn get_unchecked_mut(self, slice: *mut str) -> *mut Self::Output { let slice = slice as *mut [u8]; diff --git a/library/core/src/ub_checks.rs b/library/core/src/ub_checks.rs index 9eb71922218f..a7caaeb95cdb 100644 --- a/library/core/src/ub_checks.rs +++ b/library/core/src/ub_checks.rs @@ -63,11 +63,13 @@ macro_rules! assert_unsafe_precondition { #[rustc_no_mir_inline] #[inline] #[rustc_nounwind] + #[track_caller] const fn precondition_check($($name:$ty),*) { if !$e { - ::core::panicking::panic_nounwind(concat!("unsafe precondition(s) violated: ", $message, + let msg = concat!("unsafe precondition(s) violated: ", $message, "\n\nThis indicates a bug in the program. \ - This Undefined Behavior check is optional, and cannot be relied on for safety.")); + This Undefined Behavior check is optional, and cannot be relied on for safety."); + ::core::panicking::panic_nounwind_fmt(::core::fmt::Arguments::new_const(&[msg]), false); } } diff --git a/src/tools/miri/tests/fail/ptr_swap_nonoverlapping.stderr b/src/tools/miri/tests/fail/ptr_swap_nonoverlapping.stderr index f57487e3ffe1..b4dadeecaa8c 100644 --- a/src/tools/miri/tests/fail/ptr_swap_nonoverlapping.stderr +++ b/src/tools/miri/tests/fail/ptr_swap_nonoverlapping.stderr @@ -1,5 +1,5 @@ -thread 'main' panicked at RUSTLIB/core/src/panicking.rs:LL:CC: +thread 'main' panicked at tests/fail/ptr_swap_nonoverlapping.rs:LL:CC: unsafe precondition(s) violated: ptr::swap_nonoverlapping requires that both pointer arguments are aligned and non-null and the specified memory ranges do not overlap This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety. @@ -18,9 +18,6 @@ LL | ABORT() = note: inside closure at RUSTLIB/std/src/panicking.rs:LL:CC = note: inside `std::sys::backtrace::__rust_end_short_backtrace::<{closure@std::panicking::begin_panic_handler::{closure#0}}, !>` at RUSTLIB/std/src/sys/backtrace.rs:LL:CC = note: inside `std::panicking::begin_panic_handler` at RUSTLIB/std/src/panicking.rs:LL:CC - = note: inside `core::panicking::panic_nounwind` at RUSTLIB/core/src/panicking.rs:LL:CC - = note: inside `std::ptr::swap_nonoverlapping::precondition_check` at RUSTLIB/core/src/ub_checks.rs:LL:CC - = note: inside `std::ptr::swap_nonoverlapping::` at RUSTLIB/core/src/ub_checks.rs:LL:CC note: inside `main` --> tests/fail/ptr_swap_nonoverlapping.rs:LL:CC | diff --git a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff index 35eb4fbd106a..25ffff619e60 100644 --- a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff +++ b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.32bit.panic-abort.diff @@ -59,7 +59,7 @@ scope 10 (inlined ::allocate) { } } - scope 9 (inlined Layout::from_size_align_unchecked) { + scope 9 (inlined #[track_caller] Layout::from_size_align_unchecked) { let mut _19: bool; let _20: (); let mut _21: std::ptr::Alignment; diff --git a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff index 4427a5fcc7de..839b53e3b0b3 100644 --- a/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff +++ b/tests/mir-opt/dont_reset_cast_kind_without_updating_operand.test.GVN.64bit.panic-abort.diff @@ -59,7 +59,7 @@ scope 10 (inlined ::allocate) { } } - scope 9 (inlined Layout::from_size_align_unchecked) { + scope 9 (inlined #[track_caller] Layout::from_size_align_unchecked) { let mut _19: bool; let _20: (); let mut _21: std::ptr::Alignment; diff --git a/tests/mir-opt/inline/unchecked_shifts.rs b/tests/mir-opt/inline/unchecked_shifts.rs index 3c4e73bf7ea6..122f099da4b7 100644 --- a/tests/mir-opt/inline/unchecked_shifts.rs +++ b/tests/mir-opt/inline/unchecked_shifts.rs @@ -11,7 +11,7 @@ // EMIT_MIR unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.mir pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { // CHECK-LABEL: fn unchecked_shl_unsigned_smaller( - // CHECK: (inlined core::num::::unchecked_shl) + // CHECK: (inlined #[track_caller] core::num::::unchecked_shl) a.unchecked_shl(b) } @@ -19,6 +19,6 @@ pub unsafe fn unchecked_shl_unsigned_smaller(a: u16, b: u32) -> u16 { // EMIT_MIR unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.mir pub unsafe fn unchecked_shr_signed_bigger(a: i64, b: u32) -> i64 { // CHECK-LABEL: fn unchecked_shr_signed_bigger( - // CHECK: (inlined core::num::::unchecked_shr) + // CHECK: (inlined #[track_caller] core::num::::unchecked_shr) a.unchecked_shr(b) } diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-abort.diff b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-abort.diff index 39ba480d2033..813796657b24 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-abort.diff +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-abort.diff @@ -7,7 +7,7 @@ let mut _0: u16; let mut _3: u16; let mut _4: u32; -+ scope 1 (inlined core::num::::unchecked_shl) { ++ scope 1 (inlined #[track_caller] core::num::::unchecked_shl) { + let _5: (); + scope 2 (inlined core::ub_checks::check_language_ub) { + let mut _6: bool; diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-unwind.diff b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-unwind.diff index 5a758d357406..61fdb69f74b7 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-unwind.diff +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.Inline.panic-unwind.diff @@ -7,7 +7,7 @@ let mut _0: u16; let mut _3: u16; let mut _4: u32; -+ scope 1 (inlined core::num::::unchecked_shl) { ++ scope 1 (inlined #[track_caller] core::num::::unchecked_shl) { + let _5: (); + scope 2 (inlined core::ub_checks::check_language_ub) { + let mut _6: bool; diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-abort.mir b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-abort.mir index 611273ab08d7..0fc7c4b7947e 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-abort.mir @@ -4,7 +4,7 @@ fn unchecked_shl_unsigned_smaller(_1: u16, _2: u32) -> u16 { debug a => _1; debug b => _2; let mut _0: u16; - scope 1 (inlined core::num::::unchecked_shl) { + scope 1 (inlined #[track_caller] core::num::::unchecked_shl) { scope 2 (inlined core::ub_checks::check_language_ub) { scope 3 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-unwind.mir index 611273ab08d7..0fc7c4b7947e 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shl_unsigned_smaller.PreCodegen.after.panic-unwind.mir @@ -4,7 +4,7 @@ fn unchecked_shl_unsigned_smaller(_1: u16, _2: u32) -> u16 { debug a => _1; debug b => _2; let mut _0: u16; - scope 1 (inlined core::num::::unchecked_shl) { + scope 1 (inlined #[track_caller] core::num::::unchecked_shl) { scope 2 (inlined core::ub_checks::check_language_ub) { scope 3 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-abort.diff b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-abort.diff index a0caf141f2d0..5ea99e8301b8 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-abort.diff +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-abort.diff @@ -7,7 +7,7 @@ let mut _0: i64; let mut _3: i64; let mut _4: u32; -+ scope 1 (inlined core::num::::unchecked_shr) { ++ scope 1 (inlined #[track_caller] core::num::::unchecked_shr) { + let _5: (); + scope 2 (inlined core::ub_checks::check_language_ub) { + let mut _6: bool; diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-unwind.diff b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-unwind.diff index 633089e7b2a2..b13531ab148f 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-unwind.diff +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.Inline.panic-unwind.diff @@ -7,7 +7,7 @@ let mut _0: i64; let mut _3: i64; let mut _4: u32; -+ scope 1 (inlined core::num::::unchecked_shr) { ++ scope 1 (inlined #[track_caller] core::num::::unchecked_shr) { + let _5: (); + scope 2 (inlined core::ub_checks::check_language_ub) { + let mut _6: bool; diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-abort.mir b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-abort.mir index f4ddd0bca04d..bef7fa7b1df7 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-abort.mir @@ -4,7 +4,7 @@ fn unchecked_shr_signed_bigger(_1: i64, _2: u32) -> i64 { debug a => _1; debug b => _2; let mut _0: i64; - scope 1 (inlined core::num::::unchecked_shr) { + scope 1 (inlined #[track_caller] core::num::::unchecked_shr) { scope 2 (inlined core::ub_checks::check_language_ub) { scope 3 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-unwind.mir index f4ddd0bca04d..bef7fa7b1df7 100644 --- a/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/inline/unchecked_shifts.unchecked_shr_signed_bigger.PreCodegen.after.panic-unwind.mir @@ -4,7 +4,7 @@ fn unchecked_shr_signed_bigger(_1: i64, _2: u32) -> i64 { debug a => _1; debug b => _2; let mut _0: i64; - scope 1 (inlined core::num::::unchecked_shr) { + scope 1 (inlined #[track_caller] core::num::::unchecked_shr) { scope 2 (inlined core::ub_checks::check_language_ub) { scope 3 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-abort.diff b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-abort.diff index a5986a4315a2..0119dd799704 100644 --- a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-abort.diff +++ b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-abort.diff @@ -9,7 +9,7 @@ + let mut _3: isize; + scope 2 { + } -+ scope 3 (inlined unreachable_unchecked) { ++ scope 3 (inlined #[track_caller] unreachable_unchecked) { + let _4: (); + scope 4 (inlined core::ub_checks::check_language_ub) { + let mut _5: bool; diff --git a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-unwind.diff b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-unwind.diff index 12b03a6b6d92..d6a5eab1d6e9 100644 --- a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-unwind.diff +++ b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.Inline.panic-unwind.diff @@ -9,7 +9,7 @@ + let mut _3: isize; + scope 2 { + } -+ scope 3 (inlined unreachable_unchecked) { ++ scope 3 (inlined #[track_caller] unreachable_unchecked) { + let _4: (); + scope 4 (inlined core::ub_checks::check_language_ub) { + let mut _5: bool; diff --git a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-abort.mir b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-abort.mir index 66ab5e1b9622..b7b892c177c3 100644 --- a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-abort.mir @@ -7,7 +7,7 @@ fn unwrap_unchecked(_1: Option) -> T { let mut _2: isize; scope 2 { } - scope 3 (inlined unreachable_unchecked) { + scope 3 (inlined #[track_caller] unreachable_unchecked) { scope 4 (inlined core::ub_checks::check_language_ub) { scope 5 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-unwind.mir index 66ab5e1b9622..b7b892c177c3 100644 --- a/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/inline/unwrap_unchecked.unwrap_unchecked.PreCodegen.after.panic-unwind.mir @@ -7,7 +7,7 @@ fn unwrap_unchecked(_1: Option) -> T { let mut _2: isize; scope 2 { } - scope 3 (inlined unreachable_unchecked) { + scope 3 (inlined #[track_caller] unreachable_unchecked) { scope 4 (inlined core::ub_checks::check_language_ub) { scope 5 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/instsimplify/ub_check.unwrap_unchecked.InstSimplify-after-simplifycfg.diff b/tests/mir-opt/instsimplify/ub_check.unwrap_unchecked.InstSimplify-after-simplifycfg.diff index 82353a2d5404..2c9071e6e207 100644 --- a/tests/mir-opt/instsimplify/ub_check.unwrap_unchecked.InstSimplify-after-simplifycfg.diff +++ b/tests/mir-opt/instsimplify/ub_check.unwrap_unchecked.InstSimplify-after-simplifycfg.diff @@ -9,7 +9,7 @@ let mut _3: isize; scope 2 { } - scope 3 (inlined unreachable_unchecked) { + scope 3 (inlined #[track_caller] unreachable_unchecked) { let _4: (); scope 4 (inlined core::ub_checks::check_language_ub) { let mut _5: bool; diff --git a/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-abort.mir index a9dd8886577d..18eeb8e4d3b6 100644 --- a/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-abort.mir @@ -7,7 +7,7 @@ fn checked_shl(_1: u32, _2: u32) -> Option { scope 1 (inlined core::num::::checked_shl) { let mut _3: bool; let mut _4: u32; - scope 2 (inlined core::num::::unchecked_shl) { + scope 2 (inlined #[track_caller] core::num::::unchecked_shl) { scope 3 (inlined core::ub_checks::check_language_ub) { scope 4 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-unwind.mir index a9dd8886577d..18eeb8e4d3b6 100644 --- a/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/checked_ops.checked_shl.PreCodegen.after.panic-unwind.mir @@ -7,7 +7,7 @@ fn checked_shl(_1: u32, _2: u32) -> Option { scope 1 (inlined core::num::::checked_shl) { let mut _3: bool; let mut _4: u32; - scope 2 (inlined core::num::::unchecked_shl) { + scope 2 (inlined #[track_caller] core::num::::unchecked_shl) { scope 3 (inlined core::ub_checks::check_language_ub) { scope 4 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/duplicate_switch_targets.ub_if_b.PreCodegen.after.mir b/tests/mir-opt/pre-codegen/duplicate_switch_targets.ub_if_b.PreCodegen.after.mir index 518fedffc169..8a6732d5f745 100644 --- a/tests/mir-opt/pre-codegen/duplicate_switch_targets.ub_if_b.PreCodegen.after.mir +++ b/tests/mir-opt/pre-codegen/duplicate_switch_targets.ub_if_b.PreCodegen.after.mir @@ -4,7 +4,7 @@ fn ub_if_b(_1: Thing) -> Thing { debug t => _1; let mut _0: Thing; let mut _2: isize; - scope 1 (inlined unreachable_unchecked) { + scope 1 (inlined #[track_caller] unreachable_unchecked) { scope 2 (inlined core::ub_checks::check_language_ub) { scope 3 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/loops.int_range.PreCodegen.after.mir b/tests/mir-opt/pre-codegen/loops.int_range.PreCodegen.after.mir index 1f9c464d633b..154cbd3791cb 100644 --- a/tests/mir-opt/pre-codegen/loops.int_range.PreCodegen.after.mir +++ b/tests/mir-opt/pre-codegen/loops.int_range.PreCodegen.after.mir @@ -29,7 +29,7 @@ fn int_range(_1: usize, _2: usize) -> () { scope 8 (inlined ::forward_unchecked) { debug start => _11; debug n => const 1_usize; - scope 9 (inlined core::num::::unchecked_add) { + scope 9 (inlined #[track_caller] core::num::::unchecked_add) { debug self => _11; debug rhs => const 1_usize; scope 10 (inlined core::ub_checks::check_language_ub) { diff --git a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-abort.mir index 5faa1e210cf4..a6dad00bbdb1 100644 --- a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-abort.mir @@ -4,12 +4,12 @@ fn demo_byte_add_fat(_1: *const [u32], _2: usize) -> *const [u32] { debug p => _1; debug n => _2; let mut _0: *const [u32]; - scope 1 (inlined std::ptr::const_ptr::::byte_add) { + scope 1 (inlined #[track_caller] std::ptr::const_ptr::::byte_add) { let mut _3: *const u8; let mut _4: *const u8; scope 2 (inlined std::ptr::const_ptr::::cast::) { } - scope 3 (inlined std::ptr::const_ptr::::add) { + scope 3 (inlined #[track_caller] std::ptr::const_ptr::::add) { } scope 4 (inlined std::ptr::const_ptr::::with_metadata_of::<[u32]>) { let mut _5: usize; diff --git a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-unwind.mir index 5faa1e210cf4..a6dad00bbdb1 100644 --- a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_fat.PreCodegen.after.panic-unwind.mir @@ -4,12 +4,12 @@ fn demo_byte_add_fat(_1: *const [u32], _2: usize) -> *const [u32] { debug p => _1; debug n => _2; let mut _0: *const [u32]; - scope 1 (inlined std::ptr::const_ptr::::byte_add) { + scope 1 (inlined #[track_caller] std::ptr::const_ptr::::byte_add) { let mut _3: *const u8; let mut _4: *const u8; scope 2 (inlined std::ptr::const_ptr::::cast::) { } - scope 3 (inlined std::ptr::const_ptr::::add) { + scope 3 (inlined #[track_caller] std::ptr::const_ptr::::add) { } scope 4 (inlined std::ptr::const_ptr::::with_metadata_of::<[u32]>) { let mut _5: usize; diff --git a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-abort.mir index 9429785045a2..cb7f15657463 100644 --- a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-abort.mir @@ -4,12 +4,12 @@ fn demo_byte_add_thin(_1: *const u32, _2: usize) -> *const u32 { debug p => _1; debug n => _2; let mut _0: *const u32; - scope 1 (inlined std::ptr::const_ptr::::byte_add) { + scope 1 (inlined #[track_caller] std::ptr::const_ptr::::byte_add) { let mut _3: *const u8; let mut _4: *const u8; scope 2 (inlined std::ptr::const_ptr::::cast::) { } - scope 3 (inlined std::ptr::const_ptr::::add) { + scope 3 (inlined #[track_caller] std::ptr::const_ptr::::add) { } scope 4 (inlined std::ptr::const_ptr::::with_metadata_of::) { scope 5 (inlined std::ptr::metadata::) { diff --git a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-unwind.mir index 9429785045a2..cb7f15657463 100644 --- a/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/ptr_offset.demo_byte_add_thin.PreCodegen.after.panic-unwind.mir @@ -4,12 +4,12 @@ fn demo_byte_add_thin(_1: *const u32, _2: usize) -> *const u32 { debug p => _1; debug n => _2; let mut _0: *const u32; - scope 1 (inlined std::ptr::const_ptr::::byte_add) { + scope 1 (inlined #[track_caller] std::ptr::const_ptr::::byte_add) { let mut _3: *const u8; let mut _4: *const u8; scope 2 (inlined std::ptr::const_ptr::::cast::) { } - scope 3 (inlined std::ptr::const_ptr::::add) { + scope 3 (inlined #[track_caller] std::ptr::const_ptr::::add) { } scope 4 (inlined std::ptr::const_ptr::::with_metadata_of::) { scope 5 (inlined std::ptr::metadata::) { diff --git a/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-abort.mir index 0aa37203c1b0..dfe618612ab9 100644 --- a/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-abort.mir @@ -24,7 +24,7 @@ fn forward_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () { let mut _8: u32; scope 6 { scope 8 (inlined ::forward_unchecked) { - scope 9 (inlined core::num::::unchecked_add) { + scope 9 (inlined #[track_caller] core::num::::unchecked_add) { scope 10 (inlined core::ub_checks::check_language_ub) { scope 11 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir index 699d8bc8feab..e0fcfcaffc59 100644 --- a/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir @@ -24,7 +24,7 @@ fn forward_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () { let mut _8: u32; scope 6 { scope 8 (inlined ::forward_unchecked) { - scope 9 (inlined core::num::::unchecked_add) { + scope 9 (inlined #[track_caller] core::num::::unchecked_add) { scope 10 (inlined core::ub_checks::check_language_ub) { scope 11 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-abort.mir index f3033d4a2fa8..1f82fc59ac2c 100644 --- a/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-abort.mir @@ -10,7 +10,7 @@ fn range_iter_next(_1: &mut std::ops::Range) -> Option { let mut _6: u32; scope 3 { scope 5 (inlined ::forward_unchecked) { - scope 6 (inlined core::num::::unchecked_add) { + scope 6 (inlined #[track_caller] core::num::::unchecked_add) { scope 7 (inlined core::ub_checks::check_language_ub) { scope 8 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-unwind.mir index f3033d4a2fa8..1f82fc59ac2c 100644 --- a/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/range_iter.range_iter_next.PreCodegen.after.panic-unwind.mir @@ -10,7 +10,7 @@ fn range_iter_next(_1: &mut std::ops::Range) -> Option { let mut _6: u32; scope 3 { scope 5 (inlined ::forward_unchecked) { - scope 6 (inlined core::num::::unchecked_add) { + scope 6 (inlined #[track_caller] core::num::::unchecked_add) { scope 7 (inlined core::ub_checks::check_language_ub) { scope 8 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-abort.mir index 220e881f8664..597f02e837ab 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-abort.mir @@ -6,10 +6,10 @@ fn slice_get_unchecked_mut_range(_1: &mut [u32], _2: std::ops::Range) -> let mut _0: &mut [u32]; let mut _3: usize; let mut _4: usize; - scope 1 (inlined core::slice::::get_unchecked_mut::>) { + scope 1 (inlined #[track_caller] core::slice::::get_unchecked_mut::>) { let mut _5: *mut [u32]; let mut _11: *mut [u32]; - scope 2 (inlined as SliceIndex<[u32]>>::get_unchecked_mut) { + scope 2 (inlined #[track_caller] as SliceIndex<[u32]>>::get_unchecked_mut) { let mut _6: usize; let _7: (); let _8: usize; diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-unwind.mir index 220e881f8664..597f02e837ab 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_get_unchecked_mut_range.PreCodegen.after.panic-unwind.mir @@ -6,10 +6,10 @@ fn slice_get_unchecked_mut_range(_1: &mut [u32], _2: std::ops::Range) -> let mut _0: &mut [u32]; let mut _3: usize; let mut _4: usize; - scope 1 (inlined core::slice::::get_unchecked_mut::>) { + scope 1 (inlined #[track_caller] core::slice::::get_unchecked_mut::>) { let mut _5: *mut [u32]; let mut _11: *mut [u32]; - scope 2 (inlined as SliceIndex<[u32]>>::get_unchecked_mut) { + scope 2 (inlined #[track_caller] as SliceIndex<[u32]>>::get_unchecked_mut) { let mut _6: usize; let _7: (); let _8: usize; diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-abort.mir index 1e0df94b67fb..e34723898e4a 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-abort.mir @@ -7,7 +7,7 @@ fn slice_ptr_get_unchecked_range(_1: *const [u32], _2: std::ops::Range) - let mut _3: usize; let mut _4: usize; scope 1 (inlined std::ptr::const_ptr::::get_unchecked::>) { - scope 2 (inlined as SliceIndex<[u32]>>::get_unchecked) { + scope 2 (inlined #[track_caller] as SliceIndex<[u32]>>::get_unchecked) { let mut _5: usize; let _6: (); let _7: usize; diff --git a/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-unwind.mir index 1e0df94b67fb..e34723898e4a 100644 --- a/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_index.slice_ptr_get_unchecked_range.PreCodegen.after.panic-unwind.mir @@ -7,7 +7,7 @@ fn slice_ptr_get_unchecked_range(_1: *const [u32], _2: std::ops::Range) - let mut _3: usize; let mut _4: usize; scope 1 (inlined std::ptr::const_ptr::::get_unchecked::>) { - scope 2 (inlined as SliceIndex<[u32]>>::get_unchecked) { + scope 2 (inlined #[track_caller] as SliceIndex<[u32]>>::get_unchecked) { let mut _5: usize; let _6: (); let _7: usize; 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 c75edde711e1..d389e4069d05 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 @@ -58,7 +58,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { scope 30 { let _23: usize; scope 31 { - scope 34 (inlined core::num::::unchecked_sub) { + scope 34 (inlined #[track_caller] core::num::::unchecked_sub) { scope 35 (inlined core::ub_checks::check_language_ub) { scope 36 (inlined core::ub_checks::check_language_ub::runtime) { } @@ -115,7 +115,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { diff --git a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir index bc72181b77c4..3b58f1d61f4b 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.enumerated_loop.PreCodegen.after.panic-unwind.mir @@ -40,7 +40,7 @@ fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { 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 38c509d0b534..216e05ec5b79 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 @@ -30,7 +30,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { scope 18 { let _22: usize; scope 19 { - scope 22 (inlined core::num::::unchecked_sub) { + scope 22 (inlined #[track_caller] core::num::::unchecked_sub) { scope 23 (inlined core::ub_checks::check_language_ub) { scope 24 (inlined core::ub_checks::check_language_ub::runtime) { } @@ -86,7 +86,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { 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 158cc284b1ae..001023919804 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 @@ -30,7 +30,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { scope 18 { let _22: usize; scope 19 { - scope 22 (inlined core::num::::unchecked_sub) { + scope 22 (inlined #[track_caller] core::num::::unchecked_sub) { scope 23 (inlined core::ub_checks::check_language_ub) { scope 24 (inlined core::ub_checks::check_language_ub::runtime) { } @@ -86,7 +86,7 @@ fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { diff --git a/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-abort.mir index f8d11df5185c..41e273151eca 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-abort.mir @@ -29,7 +29,7 @@ fn range_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let mut _8: usize; scope 7 { scope 9 (inlined ::forward_unchecked) { - scope 10 (inlined core::num::::unchecked_add) { + scope 10 (inlined #[track_caller] core::num::::unchecked_add) { scope 11 (inlined core::ub_checks::check_language_ub) { scope 12 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-unwind.mir index 2c249197894a..ec781c1480c7 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.range_loop.PreCodegen.after.panic-unwind.mir @@ -29,7 +29,7 @@ fn range_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () { let mut _8: usize; scope 7 { scope 9 (inlined ::forward_unchecked) { - scope 10 (inlined core::num::::unchecked_add) { + scope 10 (inlined #[track_caller] core::num::::unchecked_add) { scope 11 (inlined core::ub_checks::check_language_ub) { scope 12 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir index 003667621080..b09e36223441 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-abort.mir @@ -40,7 +40,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { diff --git a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir index e1d710fb689c..12b54b57b844 100644 --- a/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/slice_iter.reverse_loop.PreCodegen.after.panic-unwind.mir @@ -40,7 +40,7 @@ fn reverse_loop(_1: &[T], _2: impl Fn(&T)) -> () { } scope 13 (inlined NonNull::::as_ptr) { } - scope 14 (inlined std::ptr::mut_ptr::::add) { + scope 14 (inlined #[track_caller] std::ptr::mut_ptr::::add) { } } scope 8 (inlined NonNull::<[T]>::from_ref) { 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 b6df2300efb1..c0ed0aea1e26 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 @@ -15,7 +15,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { scope 3 { let _11: usize; scope 4 { - scope 7 (inlined core::num::::unchecked_sub) { + scope 7 (inlined #[track_caller] core::num::::unchecked_sub) { scope 8 (inlined core::ub_checks::check_language_ub) { scope 9 (inlined core::ub_checks::check_language_ub::runtime) { } 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 b6df2300efb1..c0ed0aea1e26 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 @@ -15,7 +15,7 @@ fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> { scope 3 { let _11: usize; scope 4 { - scope 7 (inlined core::num::::unchecked_sub) { + scope 7 (inlined #[track_caller] core::num::::unchecked_sub) { scope 8 (inlined core::ub_checks::check_language_ub) { scope 9 (inlined core::ub_checks::check_language_ub::runtime) { } diff --git a/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-abort.mir b/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-abort.mir index 927deabd253f..30eafe8594b3 100644 --- a/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-abort.mir +++ b/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-abort.mir @@ -29,7 +29,7 @@ fn vec_deref_to_slice(_1: &Vec) -> &[u8] { } } } - scope 12 (inlined std::slice::from_raw_parts::<'_, u8>) { + scope 12 (inlined #[track_caller] std::slice::from_raw_parts::<'_, u8>) { debug data => _3; debug len => _4; let _5: *const [u8]; diff --git a/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-unwind.mir index 927deabd253f..30eafe8594b3 100644 --- a/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-unwind.mir +++ b/tests/mir-opt/pre-codegen/vec_deref.vec_deref_to_slice.PreCodegen.after.panic-unwind.mir @@ -29,7 +29,7 @@ fn vec_deref_to_slice(_1: &Vec) -> &[u8] { } } } - scope 12 (inlined std::slice::from_raw_parts::<'_, u8>) { + scope 12 (inlined #[track_caller] std::slice::from_raw_parts::<'_, u8>) { debug data => _3; debug len => _4; let _5: *const [u8]; diff --git a/tests/ui/const-ptr/forbidden_slices.stderr b/tests/ui/const-ptr/forbidden_slices.stderr index c73d2ca938cb..e618fbf7e0fe 100644 --- a/tests/ui/const-ptr/forbidden_slices.stderr +++ b/tests/ui/const-ptr/forbidden_slices.stderr @@ -104,20 +104,12 @@ error[E0080]: could not evaluate static initializer | LL | pub static R1: &[()] = unsafe { from_ptr_range(ptr::null()..ptr::null()) }; // errors inside libcore | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ evaluation panicked: assertion failed: 0 < pointee_size && pointee_size <= isize::MAX as usize - | -note: inside `from_ptr_range::<'_, ()>` - --> $SRC_DIR/core/src/slice/raw.rs:LL:COL -note: inside `std::ptr::const_ptr::::offset_from_unsigned` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: could not evaluate static initializer --> $DIR/forbidden_slices.rs:54:25 | LL | from_ptr_range(ptr..ptr.add(2)) // errors inside libcore | ^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by 8 bytes, but got ALLOC10 which is only 4 bytes from the end of the allocation - | -note: inside `std::ptr::const_ptr::::add` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: it is undefined behavior to use this value --> $DIR/forbidden_slices.rs:57:1 @@ -170,31 +162,18 @@ error[E0080]: could not evaluate static initializer | LL | from_ptr_range(ptr..ptr.add(1)) | ^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by 8 bytes, but got ALLOC11+0x1 which is only 7 bytes from the end of the allocation - | -note: inside `std::ptr::const_ptr::::add` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: could not evaluate static initializer --> $DIR/forbidden_slices.rs:85:34 | LL | pub static R9: &[u32] = unsafe { from_ptr_range(&D0..(&D0 as *const u32).add(1)) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation - | -note: inside `from_ptr_range::<'_, u32>` - --> $SRC_DIR/core/src/slice/raw.rs:LL:COL -note: inside `std::ptr::const_ptr::::offset_from_unsigned` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: could not evaluate static initializer --> $DIR/forbidden_slices.rs:87:35 | LL | pub static R10: &[u32] = unsafe { from_ptr_range(&D0..&D0) }; | ^^^^^^^^^^^^^^^^^^^^^^^^ `ptr_offset_from_unsigned` called on two different pointers that are not both derived from the same allocation - | -note: inside `from_ptr_range::<'_, u32>` - --> $SRC_DIR/core/src/slice/raw.rs:LL:COL -note: inside `std::ptr::const_ptr::::offset_from_unsigned` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error: aborting due to 18 previous errors diff --git a/tests/ui/const-ptr/out_of_bounds_read.stderr b/tests/ui/const-ptr/out_of_bounds_read.stderr index 1d625a26b78c..8f93793802ba 100644 --- a/tests/ui/const-ptr/out_of_bounds_read.stderr +++ b/tests/ui/const-ptr/out_of_bounds_read.stderr @@ -3,31 +3,18 @@ error[E0080]: evaluation of constant value failed | LL | const _READ: u32 = unsafe { ptr::read(PAST_END_PTR) }; | ^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: attempting to access 4 bytes, but got ALLOC0+0x4 which is at or beyond the end of the allocation of size 4 bytes - | -note: inside `std::ptr::read::` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/out_of_bounds_read.rs:10:39 | LL | const _CONST_READ: u32 = unsafe { PAST_END_PTR.read() }; | ^^^^^^^^^^^^^^^^^^^ memory access failed: attempting to access 4 bytes, but got ALLOC0+0x4 which is at or beyond the end of the allocation of size 4 bytes - | -note: inside `std::ptr::const_ptr::::read` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL -note: inside `std::ptr::read::` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/out_of_bounds_read.rs:12:37 | LL | const _MUT_READ: u32 = unsafe { (PAST_END_PTR as *mut u32).read() }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ memory access failed: attempting to access 4 bytes, but got ALLOC0+0x4 which is at or beyond the end of the allocation of size 4 bytes - | -note: inside `std::ptr::mut_ptr::::read` - --> $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL -note: inside `std::ptr::read::` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL error: aborting due to 3 previous errors diff --git a/tests/ui/consts/const-eval/raw-pointer-ub.rs b/tests/ui/consts/const-eval/raw-pointer-ub.rs index 1383de63109c..1e76104d515e 100644 --- a/tests/ui/consts/const-eval/raw-pointer-ub.rs +++ b/tests/ui/consts/const-eval/raw-pointer-ub.rs @@ -18,7 +18,6 @@ const MISALIGNED_COPY: () = unsafe { let mut z = 123; y.copy_to_nonoverlapping(&mut z, 1); //~^ ERROR evaluation of constant value failed - //~| NOTE inside `std::ptr::const_ptr //~| NOTE inside `std::ptr::copy_nonoverlapping::` //~| NOTE accessing memory with alignment 1, but alignment 4 is required // The actual error points into the implementation of `copy_to_nonoverlapping`. diff --git a/tests/ui/consts/const-eval/raw-pointer-ub.stderr b/tests/ui/consts/const-eval/raw-pointer-ub.stderr index 0f3dc33f3a31..01a8decc93b0 100644 --- a/tests/ui/consts/const-eval/raw-pointer-ub.stderr +++ b/tests/ui/consts/const-eval/raw-pointer-ub.stderr @@ -16,19 +16,17 @@ error[E0080]: evaluation of constant value failed LL | y.copy_to_nonoverlapping(&mut z, 1); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ accessing memory with alignment 1, but alignment 4 is required | -note: inside `std::ptr::const_ptr::::copy_to_nonoverlapping` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL note: inside `std::ptr::copy_nonoverlapping::` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL error[E0080]: evaluation of constant value failed - --> $DIR/raw-pointer-ub.rs:34:16 + --> $DIR/raw-pointer-ub.rs:33:16 | LL | let _val = (*ptr).0; | ^^^^^^^^ accessing memory based on pointer with alignment 4, but alignment 16 is required error[E0080]: evaluation of constant value failed - --> $DIR/raw-pointer-ub.rs:41:16 + --> $DIR/raw-pointer-ub.rs:40:16 | LL | let _val = *ptr; | ^^^^ memory access failed: attempting to access 8 bytes, but got ALLOC0 which is only 4 bytes from the end of the allocation diff --git a/tests/ui/consts/const-eval/ub-ref-ptr.stderr b/tests/ui/consts/const-eval/ub-ref-ptr.stderr index de5e721c3f71..cfec1a42f28a 100644 --- a/tests/ui/consts/const-eval/ub-ref-ptr.stderr +++ b/tests/ui/consts/const-eval/ub-ref-ptr.stderr @@ -153,11 +153,6 @@ error[E0080]: evaluation of constant value failed | LL | ptr.read(); | ^^^^^^^^^^ accessing memory based on pointer with alignment 1, but alignment 4 is required - | -note: inside `std::ptr::const_ptr::::read` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL -note: inside `std::ptr::read::` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL error: aborting due to 15 previous errors diff --git a/tests/ui/consts/const_unsafe_unreachable_ub.rs b/tests/ui/consts/const_unsafe_unreachable_ub.rs index a3f7fd46a759..76c6c56d7c50 100644 --- a/tests/ui/consts/const_unsafe_unreachable_ub.rs +++ b/tests/ui/consts/const_unsafe_unreachable_ub.rs @@ -1,14 +1,15 @@ const unsafe fn foo(x: bool) -> bool { match x { true => true, - false => std::hint::unreachable_unchecked(), //~ NOTE inside `foo` + false => std::hint::unreachable_unchecked(), + //~^ NOTE inside `foo` + //~| NOTE the failure occurred here } } const BAR: bool = unsafe { foo(false) }; //~^ ERROR evaluation of constant value failed //~| NOTE entering unreachable code -//~| NOTE inside `unreachable_unchecked` fn main() { assert_eq!(BAR, true); diff --git a/tests/ui/consts/const_unsafe_unreachable_ub.stderr b/tests/ui/consts/const_unsafe_unreachable_ub.stderr index 079ed77b219b..42bf69aded02 100644 --- a/tests/ui/consts/const_unsafe_unreachable_ub.stderr +++ b/tests/ui/consts/const_unsafe_unreachable_ub.stderr @@ -1,5 +1,5 @@ error[E0080]: evaluation of constant value failed - --> $DIR/const_unsafe_unreachable_ub.rs:8:28 + --> $DIR/const_unsafe_unreachable_ub.rs:10:28 | LL | const BAR: bool = unsafe { foo(false) }; | ^^^^^^^^^^ entering unreachable code @@ -8,9 +8,7 @@ note: inside `foo` --> $DIR/const_unsafe_unreachable_ub.rs:4:18 | LL | false => std::hint::unreachable_unchecked(), - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: inside `unreachable_unchecked` - --> $SRC_DIR/core/src/hint.rs:LL:COL + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the failure occurred here error: aborting due to 1 previous error diff --git a/tests/ui/consts/issue-miri-1910.stderr b/tests/ui/consts/issue-miri-1910.stderr index 59cbccc13a72..52edad0c389d 100644 --- a/tests/ui/consts/issue-miri-1910.stderr +++ b/tests/ui/consts/issue-miri-1910.stderr @@ -4,10 +4,6 @@ error[E0080]: evaluation of constant value failed LL | (&foo as *const _ as *const u8).add(one_and_a_half_pointers).read(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unable to turn pointer into integer | -note: inside `std::ptr::const_ptr::::read` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL -note: inside `std::ptr::read::` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported diff --git a/tests/ui/consts/missing_span_in_backtrace.stderr b/tests/ui/consts/missing_span_in_backtrace.stderr index 7c07710332b8..f802138c6131 100644 --- a/tests/ui/consts/missing_span_in_backtrace.stderr +++ b/tests/ui/consts/missing_span_in_backtrace.stderr @@ -8,8 +8,6 @@ error[E0080]: evaluation of constant value failed 18 | | ); | |_________^ unable to copy parts of a pointer from memory at ALLOC0 | -note: inside `swap_nonoverlapping::>` - --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL note: inside `swap_nonoverlapping::compiletime::>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL note: inside `std::ptr::swap_nonoverlapping_const::>` @@ -18,7 +16,6 @@ note: inside `std::ptr::copy_nonoverlapping::>` --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL = help: this code performed an operation that depends on the underlying bytes representing a pointer = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported - = note: this error originates in the macro `$crate::intrinsics::const_eval_select` which comes from the expansion of the macro `const_eval_select` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 1 previous error diff --git a/tests/ui/consts/offset_ub.stderr b/tests/ui/consts/offset_ub.stderr index 699b63dfd66d..31a2a36a6690 100644 --- a/tests/ui/consts/offset_ub.stderr +++ b/tests/ui/consts/offset_ub.stderr @@ -3,99 +3,66 @@ error[E0080]: evaluation of constant value failed | LL | pub const BEFORE_START: *const u8 = unsafe { (&0u8 as *const u8).offset(-1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC0 which is at the beginning of the allocation - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:9:43 | LL | pub const AFTER_END: *const u8 = unsafe { (&0u8 as *const u8).offset(2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got ALLOC1 which is only 1 byte from the end of the allocation - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:10:45 | LL | pub const AFTER_ARRAY: *const u8 = unsafe { [0u8; 100].as_ptr().offset(101) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got ALLOC2 which is only $BYTES bytes from the end of the allocation - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:12:43 | LL | pub const OVERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MAX) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing pointer arithmetic: the total offset in bytes does not fit in an `isize` - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:13:44 | LL | pub const UNDERFLOW: *const u16 = unsafe { [0u16; 1].as_ptr().offset(isize::MIN) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ overflowing pointer arithmetic: the total offset in bytes does not fit in an `isize` - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:14:56 | LL | pub const OVERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (usize::MAX as *const u8).offset(2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got 0xf..f[noalloc] which is a dangling pointer (it has no provenance) - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:15:57 | LL | pub const UNDERFLOW_ADDRESS_SPACE: *const u8 = unsafe { (1 as *const u8).offset(-2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got 0x1[noalloc] which is a dangling pointer (it has no provenance) - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:16:49 | LL | pub const NEGATIVE_OFFSET: *const u8 = unsafe { [0u8; 1].as_ptr().wrapping_offset(-2).offset(-2) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got ALLOC3-0x2 which is only $BYTES bytes from the beginning of the allocation - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:18:50 | LL | pub const ZERO_SIZED_ALLOC: *const u8 = unsafe { [0u8; 0].as_ptr().offset(1) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by 1 byte, but got ALLOC4 which is at or beyond the end of the allocation of size $BYTES bytes - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:19:42 | LL | pub const DANGLING: *const u8 = unsafe { ptr::NonNull::::dangling().as_ptr().offset(4) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by $BYTES bytes, but got 0x1[noalloc] which is a dangling pointer (it has no provenance) - | -note: inside `std::ptr::mut_ptr::::offset` - --> $SRC_DIR/core/src/ptr/mut_ptr.rs:LL:COL error[E0080]: evaluation of constant value failed --> $DIR/offset_ub.rs:22:47 | LL | pub const UNDERFLOW_ABS: *const u8 = unsafe { (usize::MAX as *const u8).offset(isize::MIN) }; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ in-bounds pointer arithmetic failed: attempting to offset pointer by -$BYTES bytes, but got 0xf..f[noalloc] which is a dangling pointer (it has no provenance) - | -note: inside `std::ptr::const_ptr::::offset` - --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL error: aborting due to 11 previous errors diff --git a/tests/ui/consts/required-consts/interpret-in-promoted.noopt.stderr b/tests/ui/consts/required-consts/interpret-in-promoted.noopt.stderr index f70e262ac4c5..1375ac751f22 100644 --- a/tests/ui/consts/required-consts/interpret-in-promoted.noopt.stderr +++ b/tests/ui/consts/required-consts/interpret-in-promoted.noopt.stderr @@ -8,9 +8,7 @@ note: inside `ub` --> $DIR/interpret-in-promoted.rs:9:5 | LL | std::hint::unreachable_unchecked(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: inside `unreachable_unchecked` - --> $SRC_DIR/core/src/hint.rs:LL:COL + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the failure occurred here note: erroneous constant encountered --> $DIR/interpret-in-promoted.rs:15:27 diff --git a/tests/ui/consts/required-consts/interpret-in-promoted.opt.stderr b/tests/ui/consts/required-consts/interpret-in-promoted.opt.stderr index f70e262ac4c5..1375ac751f22 100644 --- a/tests/ui/consts/required-consts/interpret-in-promoted.opt.stderr +++ b/tests/ui/consts/required-consts/interpret-in-promoted.opt.stderr @@ -8,9 +8,7 @@ note: inside `ub` --> $DIR/interpret-in-promoted.rs:9:5 | LL | std::hint::unreachable_unchecked(); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -note: inside `unreachable_unchecked` - --> $SRC_DIR/core/src/hint.rs:LL:COL + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the failure occurred here note: erroneous constant encountered --> $DIR/interpret-in-promoted.rs:15:27 diff --git a/tests/ui/print_type_sizes/niche-filling.stdout b/tests/ui/print_type_sizes/niche-filling.stdout index 70612490a471..432ab960a502 100644 --- a/tests/ui/print_type_sizes/niche-filling.stdout +++ b/tests/ui/print_type_sizes/niche-filling.stdout @@ -1,3 +1,25 @@ +print-type-size type: `std::fmt::Arguments<'_>`: 48 bytes, alignment: 8 bytes +print-type-size field `.pieces`: 16 bytes +print-type-size field `.args`: 16 bytes +print-type-size field `.fmt`: 16 bytes +print-type-size type: `std::panic::Location<'_>`: 24 bytes, alignment: 8 bytes +print-type-size field `.file`: 16 bytes +print-type-size field `.line`: 4 bytes +print-type-size field `.col`: 4 bytes +print-type-size type: `core::fmt::rt::Argument<'_>`: 16 bytes, alignment: 8 bytes +print-type-size field `.ty`: 16 bytes +print-type-size type: `core::fmt::rt::ArgumentType<'_>`: 16 bytes, alignment: 8 bytes +print-type-size variant `Placeholder`: 16 bytes +print-type-size field `.value`: 8 bytes +print-type-size field `.formatter`: 8 bytes +print-type-size field `._lifetime`: 0 bytes +print-type-size variant `Count`: 10 bytes +print-type-size padding: 8 bytes +print-type-size field `.0`: 2 bytes, alignment: 2 bytes +print-type-size type: `std::option::Option<&[core::fmt::rt::Placeholder]>`: 16 bytes, alignment: 8 bytes +print-type-size variant `Some`: 16 bytes +print-type-size field `.0`: 16 bytes +print-type-size variant `None`: 0 bytes print-type-size type: `IndirectNonZero`: 12 bytes, alignment: 4 bytes print-type-size field `.nested`: 8 bytes print-type-size field `.post`: 2 bytes @@ -34,6 +56,8 @@ print-type-size field `.val`: 4 bytes print-type-size field `.post`: 2 bytes print-type-size field `.pre`: 1 bytes print-type-size end padding: 1 bytes +print-type-size type: `std::ptr::NonNull<()>`: 8 bytes, alignment: 8 bytes +print-type-size field `.pointer`: 8 bytes print-type-size type: `Enum4<(), char, (), ()>`: 4 bytes, alignment: 4 bytes print-type-size variant `Two`: 4 bytes print-type-size field `.0`: 4 bytes @@ -116,3 +140,4 @@ print-type-size discriminant: 1 bytes print-type-size variant `Less`: 0 bytes print-type-size variant `Equal`: 0 bytes print-type-size variant `Greater`: 0 bytes +print-type-size type: `std::marker::PhantomData<&()>`: 0 bytes, alignment: 1 bytes From 72386693b16aef949c9bc2fb96fb78c9ce91093c Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sat, 24 May 2025 15:06:08 +0200 Subject: [PATCH 06/46] intrinsics: reduce references to LLVM and update notes on where the implementations live --- library/core/src/intrinsics/mod.rs | 29 +++++++++-------------------- 1 file changed, 9 insertions(+), 20 deletions(-) diff --git a/library/core/src/intrinsics/mod.rs b/library/core/src/intrinsics/mod.rs index 23bafa778bc6..439c8c1f9a1e 100644 --- a/library/core/src/intrinsics/mod.rs +++ b/library/core/src/intrinsics/mod.rs @@ -1,7 +1,10 @@ //! Compiler intrinsics. //! -//! The corresponding definitions are in . -//! The corresponding const implementations are in . +//! These are the imports making intrinsics available to Rust code. The actual implementations live in the compiler. +//! Some of these intrinsics are lowered to MIR in . +//! The remaining intrinsics are implemented for the LLVM backend in +//! and , +//! and for const evaluation in . //! //! # Const intrinsics //! @@ -20,28 +23,14 @@ //! //! The volatile intrinsics provide operations intended to act on I/O //! memory, which are guaranteed to not be reordered by the compiler -//! across other volatile intrinsics. See the LLVM documentation on -//! [[volatile]]. -//! -//! [volatile]: https://llvm.org/docs/LangRef.html#volatile-memory-accesses +//! across other volatile intrinsics. See [`read_volatile`][ptr::read_volatile] +//! and [`write_volatile`][ptr::write_volatile]. //! //! # Atomics //! //! The atomic intrinsics provide common atomic operations on machine -//! words, with multiple possible memory orderings. They obey the same -//! semantics as C++11. See the LLVM documentation on [[atomics]]. -//! -//! [atomics]: https://llvm.org/docs/Atomics.html -//! -//! A quick refresher on memory ordering: -//! -//! * Acquire - a barrier for acquiring a lock. Subsequent reads and writes -//! take place after the barrier. -//! * Release - a barrier for releasing a lock. Preceding reads and writes -//! take place before the barrier. -//! * Sequentially consistent - sequentially consistent operations are -//! guaranteed to happen in order. This is the standard mode for working -//! with atomic types and is equivalent to Java's `volatile`. +//! words, with multiple possible memory orderings. See the +//! [atomic types][crate::sync::atomic] docs for details. //! //! # Unwinding //! From ff3341434def8b34e8027411c6b100a621b42085 Mon Sep 17 00:00:00 2001 From: Ralf Jung Date: Sat, 24 May 2025 16:13:10 +0200 Subject: [PATCH 07/46] ScalarInt: support conversion with signed int types and cmp::Ordering --- .../rustc_const_eval/src/interpret/operand.rs | 2 +- .../rustc_middle/src/mir/interpret/value.rs | 10 ++-- compiler/rustc_middle/src/ty/consts/int.rs | 47 ++++++++++++++++++- 3 files changed, 51 insertions(+), 8 deletions(-) diff --git a/compiler/rustc_const_eval/src/interpret/operand.rs b/compiler/rustc_const_eval/src/interpret/operand.rs index 36da9037e43d..39755169e6ca 100644 --- a/compiler/rustc_const_eval/src/interpret/operand.rs +++ b/compiler/rustc_const_eval/src/interpret/operand.rs @@ -310,7 +310,7 @@ impl<'tcx, Prov: Provenance> ImmTy<'tcx, Prov> { let ty = tcx.ty_ordering_enum(None); let layout = tcx.layout_of(ty::TypingEnv::fully_monomorphized().as_query_input(ty)).unwrap(); - Self::from_scalar(Scalar::from_i8(c as i8), layout) + Self::from_scalar(Scalar::Int(c.into()), layout) } pub fn from_pair(a: Self, b: Self, cx: &(impl HasTypingEnv<'tcx> + HasTyCtxt<'tcx>)) -> Self { diff --git a/compiler/rustc_middle/src/mir/interpret/value.rs b/compiler/rustc_middle/src/mir/interpret/value.rs index 9d462093b9ea..7ba0e5b5e07e 100644 --- a/compiler/rustc_middle/src/mir/interpret/value.rs +++ b/compiler/rustc_middle/src/mir/interpret/value.rs @@ -180,27 +180,27 @@ impl Scalar { #[inline] pub fn from_i8(i: i8) -> Self { - Self::from_int(i, Size::from_bits(8)) + Self::Int(i.into()) } #[inline] pub fn from_i16(i: i16) -> Self { - Self::from_int(i, Size::from_bits(16)) + Self::Int(i.into()) } #[inline] pub fn from_i32(i: i32) -> Self { - Self::from_int(i, Size::from_bits(32)) + Self::Int(i.into()) } #[inline] pub fn from_i64(i: i64) -> Self { - Self::from_int(i, Size::from_bits(64)) + Self::Int(i.into()) } #[inline] pub fn from_i128(i: i128) -> Self { - Self::from_int(i, Size::from_bits(128)) + Self::Int(i.into()) } #[inline] diff --git a/compiler/rustc_middle/src/ty/consts/int.rs b/compiler/rustc_middle/src/ty/consts/int.rs index 9f5e31d894cb..9c9cd6953392 100644 --- a/compiler/rustc_middle/src/ty/consts/int.rs +++ b/compiler/rustc_middle/src/ty/consts/int.rs @@ -422,9 +422,9 @@ macro_rules! from_scalar_int_for_x { impl From for $ty { #[inline] fn from(int: ScalarInt) -> Self { - // The `unwrap` cannot fail because to_bits (if it succeeds) + // The `unwrap` cannot fail because to_uint (if it succeeds) // is guaranteed to return a value that fits into the size. - int.to_bits(Size::from_bytes(size_of::<$ty>())) + int.to_uint(Size::from_bytes(size_of::<$ty>())) .try_into().unwrap() } } @@ -450,6 +450,49 @@ impl From for ScalarInt { } } +macro_rules! from_x_for_scalar_int_signed { + ($($ty:ty),*) => { + $( + impl From<$ty> for ScalarInt { + #[inline] + fn from(u: $ty) -> Self { + Self { + data: u128::from(u.cast_unsigned()), // go via the unsigned type of the same size + size: NonZero::new(size_of::<$ty>() as u8).unwrap(), + } + } + } + )* + } +} + +macro_rules! from_scalar_int_for_x_signed { + ($($ty:ty),*) => { + $( + impl From for $ty { + #[inline] + fn from(int: ScalarInt) -> Self { + // The `unwrap` cannot fail because to_int (if it succeeds) + // is guaranteed to return a value that fits into the size. + int.to_int(Size::from_bytes(size_of::<$ty>())) + .try_into().unwrap() + } + } + )* + } +} + +from_x_for_scalar_int_signed!(i8, i16, i32, i64, i128); +from_scalar_int_for_x_signed!(i8, i16, i32, i64, i128); + +impl From for ScalarInt { + #[inline] + fn from(c: std::cmp::Ordering) -> Self { + // Here we rely on `Ordering` having the same values in host and target! + ScalarInt::from(c as i8) + } +} + /// Error returned when a conversion from ScalarInt to char fails. #[derive(Debug)] pub struct CharTryFromScalarInt; From 4ef35bcaef07871f286330c13783d8cc37f9c209 Mon Sep 17 00:00:00 2001 From: binarycat Date: Sat, 24 May 2025 14:15:20 -0500 Subject: [PATCH 08/46] rustdoc: use descriptive tooltip if doctest is conditionally ignored fixes https://github.com/rust-lang/rust/issues/141092 --- src/librustdoc/html/highlight.rs | 45 +++++++++++++++++++---- src/librustdoc/html/markdown.rs | 6 ++- tests/rustdoc/doctest/ignore-sometimes.rs | 23 ++++++++++++ 3 files changed, 64 insertions(+), 10 deletions(-) create mode 100644 tests/rustdoc/doctest/ignore-sometimes.rs diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs index 2db1ea8450ce..f9d355cc0386 100644 --- a/src/librustdoc/html/highlight.rs +++ b/src/librustdoc/html/highlight.rs @@ -6,7 +6,7 @@ //! Use the `render_with_highlighting` to highlight some rust code. use std::collections::VecDeque; -use std::fmt::{Display, Write}; +use std::fmt::{self, Display, Write}; use rustc_data_structures::fx::FxIndexMap; use rustc_lexer::{Cursor, FrontmatterAllowed, LiteralKind, TokenKind}; @@ -36,9 +36,10 @@ pub(crate) struct HrefContext<'a, 'tcx> { #[derive(Default)] pub(crate) struct DecorationInfo(pub(crate) FxIndexMap<&'static str, Vec<(u32, u32)>>); -#[derive(Eq, PartialEq, Clone, Copy)] +#[derive(Eq, PartialEq, Clone)] pub(crate) enum Tooltip { - Ignore, + IgnoreAll, + IgnoreSome(Vec), CompileFail, ShouldPanic, Edition(Edition), @@ -70,7 +71,7 @@ fn write_header( format_args!( "
", match tooltip { - Tooltip::Ignore => " ignore", + Tooltip::IgnoreAll | Tooltip::IgnoreSome(_) => " ignore", Tooltip::CompileFail => " compile_fail", Tooltip::ShouldPanic => " should_panic", Tooltip::Edition(_) => " edition", @@ -80,18 +81,46 @@ fn write_header( ); if tooltip != Tooltip::None { - let edition_code; + // variable for extending lifetimes of temporaries + let tmp; write_str( out, format_args!( "ⓘ", match tooltip { - Tooltip::Ignore => "This example is not tested", + Tooltip::IgnoreAll => "This example is not tested", + Tooltip::IgnoreSome(platforms) => { + tmp = format!( + "This example is not tested on {}", + fmt::from_fn(|f| { + match platforms.len() { + 0 => unreachable!(), + 1 => f.write_str(&platforms[0]), + 2 => write!(f, "{} or {}", &platforms[0], &platforms[1]), + _ => { + for (i, plat) in platforms.iter().enumerate() { + match (platforms.len() - 2).cmp(&i) { + std::cmp::Ordering::Greater => { + write!(f, "{}, ", plat)? + } + std::cmp::Ordering::Equal => { + write!(f, "{}, or ", plat)? + } + std::cmp::Ordering::Less => f.write_str(&plat)?, + } + } + Ok(()) + } + } + }) + ); + &tmp + } Tooltip::CompileFail => "This example deliberately fails to compile", Tooltip::ShouldPanic => "This example panics", Tooltip::Edition(edition) => { - edition_code = format!("This example runs with edition {edition}"); - &edition_code + tmp = format!("This example runs with edition {edition}"); + &tmp } Tooltip::None => unreachable!(), } diff --git a/src/librustdoc/html/markdown.rs b/src/librustdoc/html/markdown.rs index ad7dfafd90c7..987b92fa4e23 100644 --- a/src/librustdoc/html/markdown.rs +++ b/src/librustdoc/html/markdown.rs @@ -320,8 +320,10 @@ impl<'a, I: Iterator>> Iterator for CodeBlocks<'_, 'a, I> { )) }); - let tooltip = if ignore != Ignore::None { - highlight::Tooltip::Ignore + let tooltip = if ignore == Ignore::All { + highlight::Tooltip::IgnoreAll + } else if let Ignore::Some(platforms) = ignore { + highlight::Tooltip::IgnoreSome(platforms) } else if compile_fail { highlight::Tooltip::CompileFail } else if should_panic { diff --git a/tests/rustdoc/doctest/ignore-sometimes.rs b/tests/rustdoc/doctest/ignore-sometimes.rs new file mode 100644 index 000000000000..0f8586d221c1 --- /dev/null +++ b/tests/rustdoc/doctest/ignore-sometimes.rs @@ -0,0 +1,23 @@ +#![crate_name = "foo"] + +// test for https://github.com/rust-lang/rust/issues/141092 + +//@ has 'foo/fn.f.html' '//a[@title="This example is not tested on wasm"]' 'ⓘ' +/// Example +/// +/// ```ignore-wasm +/// let x = 1; +/// ``` +pub fn f() {} + +//@ has 'foo/fn.g.html' '//a[@title="This example is not tested on wasm or windows"]' 'ⓘ' +/// ```ignore-wasm,ignore-windows +/// let x = 1; +/// ``` +pub fn g() {} + +//@ has 'foo/fn.h.html' '//a[@title="This example is not tested on wasm, windows, or unix"]' 'ⓘ' +/// ```ignore-wasm,ignore-windows,ignore-unix +/// let x = 1; +/// ``` +pub fn h() {} From a8ae2af9670635a9138429ccba1ffb76787afbb1 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 25 May 2025 14:32:47 +0000 Subject: [PATCH 09/46] hir_body_const_context should take LocalDefId --- compiler/rustc_middle/src/hir/map.rs | 2 +- compiler/rustc_middle/src/mir/pretty.rs | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/compiler/rustc_middle/src/hir/map.rs b/compiler/rustc_middle/src/hir/map.rs index fee707f7b4c9..9c8f1c9eccf3 100644 --- a/compiler/rustc_middle/src/hir/map.rs +++ b/compiler/rustc_middle/src/hir/map.rs @@ -310,7 +310,7 @@ impl<'tcx> TyCtxt<'tcx> { /// This should only be used for determining the context of a body, a return /// value of `Some` does not always suggest that the owner of the body is `const`, /// just that it has to be checked as if it were. - pub fn hir_body_const_context(self, def_id: impl Into) -> Option { + pub fn hir_body_const_context(self, def_id: LocalDefId) -> Option { let def_id = def_id.into(); let ccx = match self.hir_body_owner_kind(def_id) { BodyOwnerKind::Const { inline } => ConstContext::Const { inline }, diff --git a/compiler/rustc_middle/src/mir/pretty.rs b/compiler/rustc_middle/src/mir/pretty.rs index 57ae7dc55c5c..6b262a275005 100644 --- a/compiler/rustc_middle/src/mir/pretty.rs +++ b/compiler/rustc_middle/src/mir/pretty.rs @@ -1624,7 +1624,11 @@ pub fn write_allocations<'tcx>( Some(GlobalAlloc::Static(did)) if !tcx.is_foreign_item(did) => { write!(w, " (static: {}", tcx.def_path_str(did))?; if body.phase <= MirPhase::Runtime(RuntimePhase::PostCleanup) - && tcx.hir_body_const_context(body.source.def_id()).is_some() + && body + .source + .def_id() + .as_local() + .is_some_and(|def_id| tcx.hir_body_const_context(def_id).is_some()) { // Statics may be cyclic and evaluating them too early // in the MIR pipeline may cause cycle errors even though From 5370c5753f3f769d27832f81ceefd4141ba1ee0c Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 25 May 2025 15:05:22 +0000 Subject: [PATCH 10/46] Make PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS into a HIR lint --- compiler/rustc_lint/messages.ftl | 5 + compiler/rustc_lint/src/lib.rs | 3 + compiler/rustc_lint/src/transmute.rs | 102 ++++++++++++++++++ compiler/rustc_lint_defs/src/builtin.rs | 35 ------ compiler/rustc_mir_transform/messages.ftl | 5 - .../src/check_undefined_transmutes.rs | 77 ------------- compiler/rustc_mir_transform/src/errors.rs | 7 -- compiler/rustc_mir_transform/src/lib.rs | 2 - ...-to-int-transmute-in-consts-issue-87525.rs | 25 ++--- ...int-transmute-in-consts-issue-87525.stderr | 50 ++++----- 10 files changed, 141 insertions(+), 170 deletions(-) create mode 100644 compiler/rustc_lint/src/transmute.rs delete mode 100644 compiler/rustc_mir_transform/src/check_undefined_transmutes.rs diff --git a/compiler/rustc_lint/messages.ftl b/compiler/rustc_lint/messages.ftl index 7fdf26bf3af9..9bef1c5b877b 100644 --- a/compiler/rustc_lint/messages.ftl +++ b/compiler/rustc_lint/messages.ftl @@ -805,6 +805,11 @@ lint_type_ir_inherent_usage = do not use `rustc_type_ir::inherent` unless you're lint_type_ir_trait_usage = do not use `rustc_type_ir::Interner` or `rustc_type_ir::InferCtxtLike` unless you're inside of the trait solver .note = the method or struct you're looking for is likely defined somewhere else downstream in the compiler +lint_undefined_transmute = pointers cannot be transmuted to integers during const eval + .note = at compile-time, pointers do not have an integer value + .note2 = avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior + .help = for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html + lint_undropped_manually_drops = calls to `std::mem::drop` with `std::mem::ManuallyDrop` instead of the inner value does nothing .label = argument has type `{$arg_ty}` .suggestion = use `std::mem::ManuallyDrop::into_inner` to get the inner value diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index 4ff586a79a6e..e1c981b09e60 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -75,6 +75,7 @@ mod reference_casting; mod shadowed_into_iter; mod static_mut_refs; mod traits; +mod transmute; mod types; mod unit_bindings; mod unqualified_local_imports; @@ -118,6 +119,7 @@ use shadowed_into_iter::ShadowedIntoIter; pub use shadowed_into_iter::{ARRAY_INTO_ITER, BOXED_SLICE_INTO_ITER}; use static_mut_refs::*; use traits::*; +use transmute::CheckTransmutes; use types::*; use unit_bindings::*; use unqualified_local_imports::*; @@ -245,6 +247,7 @@ late_lint_methods!( IfLetRescope: IfLetRescope::default(), StaticMutRefs: StaticMutRefs, UnqualifiedLocalImports: UnqualifiedLocalImports, + CheckTransmutes: CheckTransmutes, ] ] ); diff --git a/compiler/rustc_lint/src/transmute.rs b/compiler/rustc_lint/src/transmute.rs new file mode 100644 index 000000000000..8395bcf7cad6 --- /dev/null +++ b/compiler/rustc_lint/src/transmute.rs @@ -0,0 +1,102 @@ +use rustc_hir::def::{DefKind, Res}; +use rustc_hir::{self as hir}; +use rustc_macros::LintDiagnostic; +use rustc_session::{declare_lint, impl_lint_pass}; +use rustc_span::sym; + +use crate::{LateContext, LateLintPass}; + +declare_lint! { + /// The `ptr_to_integer_transmute_in_consts` lint detects pointer to integer + /// transmute in const functions and associated constants. + /// + /// ### Example + /// + /// ```rust + /// const fn foo(ptr: *const u8) -> usize { + /// unsafe { + /// std::mem::transmute::<*const u8, usize>(ptr) + /// } + /// } + /// ``` + /// + /// {{produces}} + /// + /// ### Explanation + /// + /// Transmuting pointers to integers in a `const` context is undefined behavior. + /// Any attempt to use the resulting integer will abort const-evaluation. + /// + /// But sometimes the compiler might not emit an error for pointer to integer transmutes + /// inside const functions and associated consts because they are evaluated only when referenced. + /// Therefore, this lint serves as an extra layer of defense to prevent any undefined behavior + /// from compiling without any warnings or errors. + /// + /// See [std::mem::transmute] in the reference for more details. + /// + /// [std::mem::transmute]: https://doc.rust-lang.org/std/mem/fn.transmute.html + pub PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, + Warn, + "detects pointer to integer transmutes in const functions and associated constants", +} + +pub(crate) struct CheckTransmutes; + +impl_lint_pass!(CheckTransmutes => [PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS]); + +impl<'tcx> LateLintPass<'tcx> for CheckTransmutes { + fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { + let hir::ExprKind::Call(callee, _) = expr.kind else { + return; + }; + let hir::ExprKind::Path(qpath) = callee.kind else { + return; + }; + let Res::Def(DefKind::Fn, def_id) = cx.qpath_res(&qpath, callee.hir_id) else { + return; + }; + if !cx.tcx.is_intrinsic(def_id, sym::transmute) { + return; + }; + let body_owner_def_id = cx.tcx.hir_enclosing_body_owner(expr.hir_id); + let Some(context) = cx.tcx.hir_body_const_context(body_owner_def_id) else { + return; + }; + let args = cx.typeck_results().node_args(callee.hir_id); + + let src = args.type_at(0); + let dst = args.type_at(1); + + // Check for transmutes that exhibit undefined behavior. + // For example, transmuting pointers to integers in a const context. + // + // Why do we consider const functions and associated constants only? + // + // Generally, undefined behavior in const items are handled by the evaluator. + // But, const functions and associated constants are evaluated only when referenced. + // This can result in undefined behavior in a library going unnoticed until + // the function or constant is actually used. + // + // Therefore, we only consider const functions and associated constants here and leave + // other const items to be handled by the evaluator. + if matches!(context, hir::ConstContext::ConstFn) + || matches!(cx.tcx.def_kind(body_owner_def_id), DefKind::AssocConst) + { + if src.is_raw_ptr() && dst.is_integral() { + cx.tcx.emit_node_span_lint( + PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, + expr.hir_id, + expr.span, + UndefinedTransmuteLint, + ); + } + } + } +} + +#[derive(LintDiagnostic)] +#[diag(lint_undefined_transmute)] +#[note] +#[note(lint_note2)] +#[help] +pub(crate) struct UndefinedTransmuteLint; diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index b8d242bad86a..2e1aaeedba1b 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -79,7 +79,6 @@ declare_lint_pass! { PRIVATE_BOUNDS, PRIVATE_INTERFACES, PROC_MACRO_DERIVE_RESOLUTION_FALLBACK, - PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, PUB_USE_OF_PRIVATE_EXTERN_CRATE, REDUNDANT_IMPORTS, REDUNDANT_LIFETIMES, @@ -4851,40 +4850,6 @@ declare_lint! { @feature_gate = supertrait_item_shadowing; } -declare_lint! { - /// The `ptr_to_integer_transmute_in_consts` lint detects pointer to integer - /// transmute in const functions and associated constants. - /// - /// ### Example - /// - /// ```rust - /// const fn foo(ptr: *const u8) -> usize { - /// unsafe { - /// std::mem::transmute::<*const u8, usize>(ptr) - /// } - /// } - /// ``` - /// - /// {{produces}} - /// - /// ### Explanation - /// - /// Transmuting pointers to integers in a `const` context is undefined behavior. - /// Any attempt to use the resulting integer will abort const-evaluation. - /// - /// But sometimes the compiler might not emit an error for pointer to integer transmutes - /// inside const functions and associated consts because they are evaluated only when referenced. - /// Therefore, this lint serves as an extra layer of defense to prevent any undefined behavior - /// from compiling without any warnings or errors. - /// - /// See [std::mem::transmute] in the reference for more details. - /// - /// [std::mem::transmute]: https://doc.rust-lang.org/std/mem/fn.transmute.html - pub PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, - Warn, - "detects pointer to integer transmutes in const functions and associated constants", -} - declare_lint! { /// The `unnecessary_transmutes` lint detects transmutations that have safer alternatives. /// diff --git a/compiler/rustc_mir_transform/messages.ftl b/compiler/rustc_mir_transform/messages.ftl index a1264471a2df..ada705a5163d 100644 --- a/compiler/rustc_mir_transform/messages.ftl +++ b/compiler/rustc_mir_transform/messages.ftl @@ -78,10 +78,5 @@ mir_transform_unconditional_recursion = function cannot return without recursing mir_transform_unconditional_recursion_call_site_label = recursive call site -mir_transform_undefined_transmute = pointers cannot be transmuted to integers during const eval - .note = at compile-time, pointers do not have an integer value - .note2 = avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior - .help = for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html - mir_transform_unknown_pass_name = MIR pass `{$name}` is unknown and will be ignored mir_transform_unnecessary_transmute = unnecessary transmute diff --git a/compiler/rustc_mir_transform/src/check_undefined_transmutes.rs b/compiler/rustc_mir_transform/src/check_undefined_transmutes.rs deleted file mode 100644 index daddb5dedbcf..000000000000 --- a/compiler/rustc_mir_transform/src/check_undefined_transmutes.rs +++ /dev/null @@ -1,77 +0,0 @@ -use rustc_middle::mir::visit::Visitor; -use rustc_middle::mir::{Body, Location, Operand, Terminator, TerminatorKind}; -use rustc_middle::ty::{AssocItem, AssocKind, TyCtxt}; -use rustc_session::lint::builtin::PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS; -use rustc_span::sym; - -use crate::errors; - -/// Check for transmutes that exhibit undefined behavior. -/// For example, transmuting pointers to integers in a const context. -pub(super) struct CheckUndefinedTransmutes; - -impl<'tcx> crate::MirLint<'tcx> for CheckUndefinedTransmutes { - fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { - let mut checker = UndefinedTransmutesChecker { body, tcx }; - checker.visit_body(body); - } -} - -struct UndefinedTransmutesChecker<'a, 'tcx> { - body: &'a Body<'tcx>, - tcx: TyCtxt<'tcx>, -} - -impl<'a, 'tcx> UndefinedTransmutesChecker<'a, 'tcx> { - // This functions checks two things: - // 1. `function` takes a raw pointer as input and returns an integer as output. - // 2. `function` is called from a const function or an associated constant. - // - // Why do we consider const functions and associated constants only? - // - // Generally, undefined behavior in const items are handled by the evaluator. - // But, const functions and associated constants are evaluated only when referenced. - // This can result in undefined behavior in a library going unnoticed until - // the function or constant is actually used. - // - // Therefore, we only consider const functions and associated constants here and leave - // other const items to be handled by the evaluator. - fn is_ptr_to_int_in_const(&self, function: &Operand<'tcx>) -> bool { - let def_id = self.body.source.def_id(); - - if self.tcx.is_const_fn(def_id) - || matches!( - self.tcx.opt_associated_item(def_id), - Some(AssocItem { kind: AssocKind::Const { .. }, .. }) - ) - { - let fn_sig = function.ty(self.body, self.tcx).fn_sig(self.tcx).skip_binder(); - if let [input] = fn_sig.inputs() { - return input.is_raw_ptr() && fn_sig.output().is_integral(); - } - } - false - } -} - -impl<'tcx> Visitor<'tcx> for UndefinedTransmutesChecker<'_, 'tcx> { - // Check each block's terminator for calls to pointer to integer transmutes - // in const functions or associated constants and emit a lint. - fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { - if let TerminatorKind::Call { func, .. } = &terminator.kind - && let Some((func_def_id, _)) = func.const_fn_def() - && self.tcx.is_intrinsic(func_def_id, sym::transmute) - && self.is_ptr_to_int_in_const(func) - && let Some(call_id) = self.body.source.def_id().as_local() - { - let hir_id = self.tcx.local_def_id_to_hir_id(call_id); - let span = self.body.source_info(location).span; - self.tcx.emit_node_span_lint( - PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, - hir_id, - span, - errors::UndefinedTransmute, - ); - } - } -} diff --git a/compiler/rustc_mir_transform/src/errors.rs b/compiler/rustc_mir_transform/src/errors.rs index 5b03a4987ed7..9777cb56f13a 100644 --- a/compiler/rustc_mir_transform/src/errors.rs +++ b/compiler/rustc_mir_transform/src/errors.rs @@ -178,13 +178,6 @@ impl<'a> LintDiagnostic<'a, ()> for UnnecessaryTransmute { } } -#[derive(LintDiagnostic)] -#[diag(mir_transform_undefined_transmute)] -#[note] -#[note(mir_transform_note2)] -#[help] -pub(crate) struct UndefinedTransmute; - #[derive(Diagnostic)] #[diag(mir_transform_force_inline)] #[note] diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 10dbb3437dcb..8d4e9e30f4fa 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -123,7 +123,6 @@ declare_passes! { mod check_const_item_mutation : CheckConstItemMutation; mod check_null : CheckNull; mod check_packed_ref : CheckPackedRef; - mod check_undefined_transmutes : CheckUndefinedTransmutes; mod check_unnecessary_transmutes: CheckUnnecessaryTransmutes; // This pass is public to allow external drivers to perform MIR cleanup pub mod cleanup_post_borrowck : CleanupPostBorrowck; @@ -390,7 +389,6 @@ fn mir_built(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { &Lint(check_packed_ref::CheckPackedRef), &Lint(check_const_item_mutation::CheckConstItemMutation), &Lint(function_item_references::FunctionItemReferences), - &Lint(check_undefined_transmutes::CheckUndefinedTransmutes), &Lint(check_unnecessary_transmutes::CheckUnnecessaryTransmutes), // What we need to do constant evaluation. &simplify::SimplifyCfg::Initial, diff --git a/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.rs b/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.rs index 19c78f019aab..5fab075785aa 100644 --- a/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.rs +++ b/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.rs @@ -1,7 +1,9 @@ +#![deny(ptr_to_integer_transmute_in_consts)] + const fn foo(ptr: *const u8) -> usize { unsafe { std::mem::transmute(ptr) - //~^ WARN pointers cannot be transmuted to integers + //~^ ERROR pointers cannot be transmuted to integers } } @@ -11,7 +13,7 @@ trait Human { let ptr: *const usize = &value; unsafe { std::mem::transmute(ptr) - //~^ WARN pointers cannot be transmuted to integers + //~^ ERROR pointers cannot be transmuted to integers } }; @@ -28,7 +30,7 @@ impl Type { let ptr: *const usize = &value; unsafe { std::mem::transmute(ptr) - //~^ WARN pointers cannot be transmuted to integers + //~^ ERROR pointers cannot be transmuted to integers } }; @@ -38,9 +40,7 @@ impl Type { } fn control(ptr: *const u8) -> usize { - unsafe { - std::mem::transmute(ptr) - } + unsafe { std::mem::transmute(ptr) } } struct ControlStruct; @@ -49,22 +49,15 @@ impl ControlStruct { fn new() -> usize { let value = 10; let ptr: *const i32 = &value; - unsafe { - std::mem::transmute(ptr) - } + unsafe { std::mem::transmute(ptr) } } } - const fn zoom(ptr: *const u8) -> usize { unsafe { std::mem::transmute(ptr) - //~^ WARN pointers cannot be transmuted to integers + //~^ ERROR pointers cannot be transmuted to integers } } -fn main() { - const a: u8 = 10; - const value: usize = zoom(&a); - //~^ ERROR evaluation of constant value failed -} +fn main() {} diff --git a/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.stderr b/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.stderr index ca6ad9408ab9..2a9d9b5cb962 100644 --- a/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.stderr +++ b/tests/ui/consts/const-eval/ptr-to-int-transmute-in-consts-issue-87525.stderr @@ -1,5 +1,5 @@ -warning: pointers cannot be transmuted to integers during const eval - --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:61:9 +error: pointers cannot be transmuted to integers during const eval + --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:5:9 | LL | std::mem::transmute(ptr) | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -7,29 +7,14 @@ LL | std::mem::transmute(ptr) = note: at compile-time, pointers do not have an integer value = note: avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior = help: for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html - = note: `#[warn(ptr_to_integer_transmute_in_consts)]` on by default +note: the lint level is defined here + --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:1:9 + | +LL | #![deny(ptr_to_integer_transmute_in_consts)] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0080]: evaluation of constant value failed - --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:68:26 - | -LL | const value: usize = zoom(&a); - | ^^^^^^^^ unable to turn pointer into integer - | - = help: this code performed an operation that depends on the underlying bytes representing a pointer - = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported - -warning: pointers cannot be transmuted to integers during const eval - --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:3:9 - | -LL | std::mem::transmute(ptr) - | ^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: at compile-time, pointers do not have an integer value - = note: avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior - = help: for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html - -warning: pointers cannot be transmuted to integers during const eval - --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:13:13 +error: pointers cannot be transmuted to integers during const eval + --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:15:13 | LL | std::mem::transmute(ptr) | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -38,8 +23,8 @@ LL | std::mem::transmute(ptr) = note: avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior = help: for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html -warning: pointers cannot be transmuted to integers during const eval - --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:30:13 +error: pointers cannot be transmuted to integers during const eval + --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:32:13 | LL | std::mem::transmute(ptr) | ^^^^^^^^^^^^^^^^^^^^^^^^ @@ -48,6 +33,15 @@ LL | std::mem::transmute(ptr) = note: avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior = help: for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html -error: aborting due to 1 previous error; 4 warnings emitted +error: pointers cannot be transmuted to integers during const eval + --> $DIR/ptr-to-int-transmute-in-consts-issue-87525.rs:58:9 + | +LL | std::mem::transmute(ptr) + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: at compile-time, pointers do not have an integer value + = note: avoiding this restriction via `union` or raw pointers leads to compile-time undefined behavior + = help: for more information, see https://doc.rust-lang.org/std/mem/fn.transmute.html + +error: aborting due to 4 previous errors -For more information about this error, try `rustc --explain E0080`. From 295a8d56f5a7d200599d587fb52bf217b9aee363 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sun, 25 May 2025 15:57:10 +0000 Subject: [PATCH 11/46] Make UNNECESSARY_TRANSMUTES into a HIR lint --- compiler/rustc_lint/src/transmute.rs | 232 ++++++++++++++--- compiler/rustc_lint_defs/src/builtin.rs | 25 -- compiler/rustc_mir_transform/messages.ftl | 1 - .../src/check_unnecessary_transmutes.rs | 136 ---------- compiler/rustc_mir_transform/src/errors.rs | 20 -- compiler/rustc_mir_transform/src/lib.rs | 2 - .../unnecessary-transmutation.stderr | 236 +++++++++++++----- 7 files changed, 379 insertions(+), 273 deletions(-) delete mode 100644 compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs diff --git a/compiler/rustc_lint/src/transmute.rs b/compiler/rustc_lint/src/transmute.rs index 8395bcf7cad6..bc1d4587d076 100644 --- a/compiler/rustc_lint/src/transmute.rs +++ b/compiler/rustc_lint/src/transmute.rs @@ -1,6 +1,9 @@ +use rustc_errors::Applicability; use rustc_hir::def::{DefKind, Res}; +use rustc_hir::def_id::LocalDefId; use rustc_hir::{self as hir}; use rustc_macros::LintDiagnostic; +use rustc_middle::ty::{self, Ty}; use rustc_session::{declare_lint, impl_lint_pass}; use rustc_span::sym; @@ -40,13 +43,37 @@ declare_lint! { "detects pointer to integer transmutes in const functions and associated constants", } +declare_lint! { + /// The `unnecessary_transmutes` lint detects transmutations that have safer alternatives. + /// + /// ### Example + /// + /// ```rust + /// fn bytes_at_home(x: [u8; 4]) -> u32 { + /// unsafe { std::mem::transmute(x) } + /// } + /// ``` + /// + /// {{produces}} + /// + /// ### Explanation + /// + /// Using an explicit method is preferable over calls to + /// [`transmute`](https://doc.rust-lang.org/std/mem/fn.transmute.html) as + /// they more clearly communicate the intent, are easier to review, and + /// are less likely to accidentally result in unsoundness. + pub UNNECESSARY_TRANSMUTES, + Warn, + "detects transmutes that can also be achieved by other operations" +} + pub(crate) struct CheckTransmutes; -impl_lint_pass!(CheckTransmutes => [PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS]); +impl_lint_pass!(CheckTransmutes => [PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, UNNECESSARY_TRANSMUTES]); impl<'tcx> LateLintPass<'tcx> for CheckTransmutes { fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx hir::Expr<'tcx>) { - let hir::ExprKind::Call(callee, _) = expr.kind else { + let hir::ExprKind::Call(callee, [arg]) = expr.kind else { return; }; let hir::ExprKind::Path(qpath) = callee.kind else { @@ -59,41 +86,190 @@ impl<'tcx> LateLintPass<'tcx> for CheckTransmutes { return; }; let body_owner_def_id = cx.tcx.hir_enclosing_body_owner(expr.hir_id); - let Some(context) = cx.tcx.hir_body_const_context(body_owner_def_id) else { - return; - }; + let const_context = cx.tcx.hir_body_const_context(body_owner_def_id); let args = cx.typeck_results().node_args(callee.hir_id); let src = args.type_at(0); let dst = args.type_at(1); - // Check for transmutes that exhibit undefined behavior. - // For example, transmuting pointers to integers in a const context. - // - // Why do we consider const functions and associated constants only? - // - // Generally, undefined behavior in const items are handled by the evaluator. - // But, const functions and associated constants are evaluated only when referenced. - // This can result in undefined behavior in a library going unnoticed until - // the function or constant is actually used. - // - // Therefore, we only consider const functions and associated constants here and leave - // other const items to be handled by the evaluator. - if matches!(context, hir::ConstContext::ConstFn) - || matches!(cx.tcx.def_kind(body_owner_def_id), DefKind::AssocConst) - { - if src.is_raw_ptr() && dst.is_integral() { - cx.tcx.emit_node_span_lint( - PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, - expr.hir_id, - expr.span, - UndefinedTransmuteLint, - ); - } + check_ptr_transmute_in_const(cx, expr, body_owner_def_id, const_context, src, dst); + check_unnecessary_transmute(cx, expr, callee, arg, const_context, src, dst); + } +} + +/// Check for transmutes that exhibit undefined behavior. +/// For example, transmuting pointers to integers in a const context. +/// +/// Why do we consider const functions and associated constants only? +/// +/// Generally, undefined behavior in const items are handled by the evaluator. +/// But, const functions and associated constants are evaluated only when referenced. +/// This can result in undefined behavior in a library going unnoticed until +/// the function or constant is actually used. +/// +/// Therefore, we only consider const functions and associated constants here and leave +/// other const items to be handled by the evaluator. +fn check_ptr_transmute_in_const<'tcx>( + cx: &LateContext<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + body_owner_def_id: LocalDefId, + const_context: Option, + src: Ty<'tcx>, + dst: Ty<'tcx>, +) { + if matches!(const_context, Some(hir::ConstContext::ConstFn)) + || matches!(cx.tcx.def_kind(body_owner_def_id), DefKind::AssocConst) + { + if src.is_raw_ptr() && dst.is_integral() { + cx.tcx.emit_node_span_lint( + PTR_TO_INTEGER_TRANSMUTE_IN_CONSTS, + expr.hir_id, + expr.span, + UndefinedTransmuteLint, + ); } } } +/// Check for transmutes that overlap with stdlib methods. +/// For example, transmuting `[u8; 4]` to `u32`. +/// +/// We chose not to lint u8 -> bool transmutes, see #140431. +fn check_unnecessary_transmute<'tcx>( + cx: &LateContext<'tcx>, + expr: &'tcx hir::Expr<'tcx>, + callee: &'tcx hir::Expr<'tcx>, + arg: &'tcx hir::Expr<'tcx>, + const_context: Option, + src: Ty<'tcx>, + dst: Ty<'tcx>, +) { + let callee_span = callee.span.find_ancestor_inside(expr.span).unwrap_or(callee.span); + let (sugg, help) = match (src.kind(), dst.kind()) { + // dont check the length; transmute does that for us. + // [u8; _] => primitive + (ty::Array(t, _), ty::Uint(_) | ty::Float(_) | ty::Int(_)) + if *t.kind() == ty::Uint(ty::UintTy::U8) => + { + ( + Some(vec![(callee_span, format!("{dst}::from_ne_bytes"))]), + Some( + "there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order", + ), + ) + } + // primitive => [u8; _] + (ty::Uint(_) | ty::Float(_) | ty::Int(_), ty::Array(t, _)) + if *t.kind() == ty::Uint(ty::UintTy::U8) => + { + ( + Some(vec![(callee_span, format!("{src}::to_ne_bytes"))]), + Some( + "there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order", + ), + ) + } + // char → u32 + (ty::Char, ty::Uint(ty::UintTy::U32)) => { + (Some(vec![(callee_span, "u32::from".to_string())]), None) + } + // char (→ u32) → i32 + (ty::Char, ty::Int(ty::IntTy::I32)) => ( + Some(vec![ + (callee_span, "u32::from".to_string()), + (expr.span.shrink_to_hi(), ".cast_signed()".to_string()), + ]), + None, + ), + // u32 → char + (ty::Uint(ty::UintTy::U32), ty::Char) => ( + Some(vec![(callee_span, "char::from_u32_unchecked".to_string())]), + Some("consider using `char::from_u32(…).unwrap()`"), + ), + // i32 → char + (ty::Int(ty::IntTy::I32), ty::Char) => ( + Some(vec![ + (callee_span, "char::from_u32_unchecked(i32::cast_unsigned".to_string()), + (expr.span.shrink_to_hi(), ")".to_string()), + ]), + Some("consider using `char::from_u32(i32::cast_unsigned(…)).unwrap()`"), + ), + // uNN → iNN + (ty::Uint(_), ty::Int(_)) => { + (Some(vec![(callee_span, format!("{src}::cast_signed"))]), None) + } + // iNN → uNN + (ty::Int(_), ty::Uint(_)) => { + (Some(vec![(callee_span, format!("{src}::cast_unsigned"))]), None) + } + // fNN → usize, isize + (ty::Float(_), ty::Uint(ty::UintTy::Usize) | ty::Int(ty::IntTy::Isize)) => ( + Some(vec![ + (callee_span, format!("{src}::to_bits")), + (expr.span.shrink_to_hi(), format!(" as {dst}")), + ]), + None, + ), + // fNN (→ uNN) → iNN + (ty::Float(_), ty::Int(..)) => ( + Some(vec![ + (callee_span, format!("{src}::to_bits")), + (expr.span.shrink_to_hi(), ".cast_signed()".to_string()), + ]), + None, + ), + // fNN → uNN + (ty::Float(_), ty::Uint(..)) => { + (Some(vec![(callee_span, format!("{src}::to_bits"))]), None) + } + // xsize → fNN + (ty::Uint(ty::UintTy::Usize) | ty::Int(ty::IntTy::Isize), ty::Float(_)) => ( + Some(vec![ + (callee_span, format!("{dst}::from_bits")), + (arg.span.shrink_to_hi(), " as _".to_string()), + ]), + None, + ), + // iNN (→ uNN) → fNN + (ty::Int(_), ty::Float(_)) => ( + Some(vec![ + (callee_span, format!("{dst}::from_bits({src}::cast_unsigned")), + (expr.span.shrink_to_hi(), ")".to_string()), + ]), + None, + ), + // uNN → fNN + (ty::Uint(_), ty::Float(_)) => { + (Some(vec![(callee_span, format!("{dst}::from_bits"))]), None) + } + // bool → x8 in const context since `From::from` is not const yet + // FIXME: Consider arg expr's precedence to avoid parentheses. + // FIXME(const_traits): Remove this when `From::from` is constified. + (ty::Bool, ty::Int(..) | ty::Uint(..)) if const_context.is_some() => ( + Some(vec![ + (callee_span, "".to_string()), + (expr.span.shrink_to_hi(), format!(" as {dst}")), + ]), + None, + ), + // bool → x8 using `x8::from` + (ty::Bool, ty::Int(..) | ty::Uint(..)) => { + (Some(vec![(callee_span, format!("{dst}::from"))]), None) + } + _ => return, + }; + + cx.tcx.node_span_lint(UNNECESSARY_TRANSMUTES, expr.hir_id, expr.span, |diag| { + diag.primary_message("unnecessary transmute"); + if let Some(sugg) = sugg { + diag.multipart_suggestion("replace this with", sugg, Applicability::MachineApplicable); + } + if let Some(help) = help { + diag.help(help); + } + }); +} + #[derive(LintDiagnostic)] #[diag(lint_undefined_transmute)] #[note] diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 2e1aaeedba1b..abf4840a026c 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -117,7 +117,6 @@ declare_lint_pass! { UNKNOWN_OR_MALFORMED_DIAGNOSTIC_ATTRIBUTES, UNNAMEABLE_TEST_ITEMS, UNNAMEABLE_TYPES, - UNNECESSARY_TRANSMUTES, UNREACHABLE_CODE, UNREACHABLE_PATTERNS, UNSAFE_ATTR_OUTSIDE_UNSAFE, @@ -4850,30 +4849,6 @@ declare_lint! { @feature_gate = supertrait_item_shadowing; } -declare_lint! { - /// The `unnecessary_transmutes` lint detects transmutations that have safer alternatives. - /// - /// ### Example - /// - /// ```rust - /// fn bytes_at_home(x: [u8; 4]) -> u32 { - /// unsafe { std::mem::transmute(x) } - /// } - /// ``` - /// - /// {{produces}} - /// - /// ### Explanation - /// - /// Using an explicit method is preferable over calls to - /// [`transmute`](https://doc.rust-lang.org/std/mem/fn.transmute.html) as - /// they more clearly communicate the intent, are easier to review, and - /// are less likely to accidentally result in unsoundness. - pub UNNECESSARY_TRANSMUTES, - Warn, - "detects transmutes that are shadowed by std methods" -} - declare_lint! { /// The `tail_expr_drop_order` lint looks for those values generated at the tail expression location, /// that runs a custom `Drop` destructor. diff --git a/compiler/rustc_mir_transform/messages.ftl b/compiler/rustc_mir_transform/messages.ftl index ada705a5163d..ae3062f07de9 100644 --- a/compiler/rustc_mir_transform/messages.ftl +++ b/compiler/rustc_mir_transform/messages.ftl @@ -79,4 +79,3 @@ mir_transform_unconditional_recursion = function cannot return without recursing mir_transform_unconditional_recursion_call_site_label = recursive call site mir_transform_unknown_pass_name = MIR pass `{$name}` is unknown and will be ignored -mir_transform_unnecessary_transmute = unnecessary transmute diff --git a/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs b/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs deleted file mode 100644 index 1a3715465ad4..000000000000 --- a/compiler/rustc_mir_transform/src/check_unnecessary_transmutes.rs +++ /dev/null @@ -1,136 +0,0 @@ -use rustc_middle::mir::visit::Visitor; -use rustc_middle::mir::{Body, Location, Operand, Terminator, TerminatorKind}; -use rustc_middle::ty::*; -use rustc_session::lint::builtin::UNNECESSARY_TRANSMUTES; -use rustc_span::source_map::Spanned; -use rustc_span::{Span, sym}; - -use crate::errors::UnnecessaryTransmute as Error; - -/// Check for transmutes that overlap with stdlib methods. -/// For example, transmuting `[u8; 4]` to `u32`. -/// We chose not to lint u8 -> bool transmutes, see #140431 -pub(super) struct CheckUnnecessaryTransmutes; - -impl<'tcx> crate::MirLint<'tcx> for CheckUnnecessaryTransmutes { - fn run_lint(&self, tcx: TyCtxt<'tcx>, body: &Body<'tcx>) { - let mut checker = UnnecessaryTransmuteChecker { body, tcx }; - checker.visit_body(body); - } -} - -struct UnnecessaryTransmuteChecker<'a, 'tcx> { - body: &'a Body<'tcx>, - tcx: TyCtxt<'tcx>, -} - -impl<'a, 'tcx> UnnecessaryTransmuteChecker<'a, 'tcx> { - fn is_unnecessary_transmute( - &self, - function: &Operand<'tcx>, - arg: String, - span: Span, - is_in_const: bool, - ) -> Option { - let fn_sig = function.ty(self.body, self.tcx).fn_sig(self.tcx).skip_binder(); - let [input] = fn_sig.inputs() else { return None }; - - let err = |sugg| Error { span, sugg, help: None }; - - Some(match (input.kind(), fn_sig.output().kind()) { - // dont check the length; transmute does that for us. - // [u8; _] => primitive - (Array(t, _), Uint(_) | Float(_) | Int(_)) if *t.kind() == Uint(UintTy::U8) => Error { - sugg: format!("{}::from_ne_bytes({arg})", fn_sig.output()), - help: Some( - "there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order", - ), - span, - }, - // primitive => [u8; _] - (Uint(_) | Float(_) | Int(_), Array(t, _)) if *t.kind() == Uint(UintTy::U8) => Error { - sugg: format!("{input}::to_ne_bytes({arg})"), - help: Some( - "there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order", - ), - span, - }, - // char → u32 - (Char, Uint(UintTy::U32)) => err(format!("u32::from({arg})")), - // char (→ u32) → i32 - (Char, Int(IntTy::I32)) => err(format!("u32::from({arg}).cast_signed()")), - // u32 → char - (Uint(UintTy::U32), Char) => Error { - sugg: format!("char::from_u32_unchecked({arg})"), - help: Some("consider `char::from_u32(…).unwrap()`"), - span, - }, - // i32 → char - (Int(IntTy::I32), Char) => Error { - sugg: format!("char::from_u32_unchecked(i32::cast_unsigned({arg}))"), - help: Some("consider `char::from_u32(i32::cast_unsigned(…)).unwrap()`"), - span, - }, - // uNN → iNN - (Uint(ty), Int(_)) => err(format!("{}::cast_signed({arg})", ty.name_str())), - // iNN → uNN - (Int(ty), Uint(_)) => err(format!("{}::cast_unsigned({arg})", ty.name_str())), - // fNN → xsize - (Float(ty), Uint(UintTy::Usize)) => { - err(format!("{}::to_bits({arg}) as usize", ty.name_str())) - } - (Float(ty), Int(IntTy::Isize)) => { - err(format!("{}::to_bits({arg}) as isize", ty.name_str())) - } - // fNN (→ uNN) → iNN - (Float(ty), Int(..)) => err(format!("{}::to_bits({arg}).cast_signed()", ty.name_str())), - // fNN → uNN - (Float(ty), Uint(..)) => err(format!("{}::to_bits({arg})", ty.name_str())), - // xsize → fNN - (Uint(UintTy::Usize) | Int(IntTy::Isize), Float(ty)) => { - err(format!("{}::from_bits({arg} as _)", ty.name_str(),)) - } - // iNN (→ uNN) → fNN - (Int(int_ty), Float(ty)) => err(format!( - "{}::from_bits({}::cast_unsigned({arg}))", - ty.name_str(), - int_ty.name_str() - )), - // uNN → fNN - (Uint(_), Float(ty)) => err(format!("{}::from_bits({arg})", ty.name_str())), - // bool → { x8 } in const context since `From::from` is not const yet - // FIXME: is it possible to know when the parentheses arent necessary? - // FIXME(const_traits): Remove this when From::from is constified? - (Bool, Int(..) | Uint(..)) if is_in_const => { - err(format!("({arg}) as {}", fn_sig.output())) - } - // " using `x8::from` - (Bool, Int(..) | Uint(..)) => err(format!("{}::from({arg})", fn_sig.output())), - _ => return None, - }) - } -} - -impl<'tcx> Visitor<'tcx> for UnnecessaryTransmuteChecker<'_, 'tcx> { - // Check each block's terminator for calls to pointer to integer transmutes - // in const functions or associated constants and emit a lint. - fn visit_terminator(&mut self, terminator: &Terminator<'tcx>, location: Location) { - if let TerminatorKind::Call { func, args, .. } = &terminator.kind - && let [Spanned { span: arg, .. }] = **args - && let Some((func_def_id, _)) = func.const_fn_def() - && self.tcx.is_intrinsic(func_def_id, sym::transmute) - && let span = self.body.source_info(location).span - && let Ok(snippet) = self.tcx.sess.source_map().span_to_snippet(arg) - && let def_id = self.body.source.def_id() - && let Some(lint) = self.is_unnecessary_transmute( - func, - snippet, - span, - self.tcx.hir_body_const_context(def_id.expect_local()).is_some(), - ) - && let Some(hir_id) = terminator.source_info.scope.lint_root(&self.body.source_scopes) - { - self.tcx.emit_node_span_lint(UNNECESSARY_TRANSMUTES, hir_id, span, lint); - } - } -} diff --git a/compiler/rustc_mir_transform/src/errors.rs b/compiler/rustc_mir_transform/src/errors.rs index 9777cb56f13a..cffa0183fa7a 100644 --- a/compiler/rustc_mir_transform/src/errors.rs +++ b/compiler/rustc_mir_transform/src/errors.rs @@ -158,26 +158,6 @@ pub(crate) struct MustNotSuspendReason { pub reason: String, } -pub(crate) struct UnnecessaryTransmute { - pub span: Span, - pub sugg: String, - pub help: Option<&'static str>, -} - -// Needed for def_path_str -impl<'a> LintDiagnostic<'a, ()> for UnnecessaryTransmute { - fn decorate_lint<'b>(self, diag: &'b mut rustc_errors::Diag<'a, ()>) { - diag.primary_message(fluent::mir_transform_unnecessary_transmute); - diag.span_suggestion( - self.span, - "replace this with", - self.sugg, - lint::Applicability::MachineApplicable, - ); - self.help.map(|help| diag.help(help)); - } -} - #[derive(Diagnostic)] #[diag(mir_transform_force_inline)] #[note] diff --git a/compiler/rustc_mir_transform/src/lib.rs b/compiler/rustc_mir_transform/src/lib.rs index 8d4e9e30f4fa..d26e44687157 100644 --- a/compiler/rustc_mir_transform/src/lib.rs +++ b/compiler/rustc_mir_transform/src/lib.rs @@ -123,7 +123,6 @@ declare_passes! { mod check_const_item_mutation : CheckConstItemMutation; mod check_null : CheckNull; mod check_packed_ref : CheckPackedRef; - mod check_unnecessary_transmutes: CheckUnnecessaryTransmutes; // This pass is public to allow external drivers to perform MIR cleanup pub mod cleanup_post_borrowck : CleanupPostBorrowck; @@ -389,7 +388,6 @@ fn mir_built(tcx: TyCtxt<'_>, def: LocalDefId) -> &Steal> { &Lint(check_packed_ref::CheckPackedRef), &Lint(check_const_item_mutation::CheckConstItemMutation), &Lint(function_item_references::FunctionItemReferences), - &Lint(check_unnecessary_transmutes::CheckUnnecessaryTransmutes), // What we need to do constant evaluation. &simplify::SimplifyCfg::Initial, &Lint(sanity_check::SanityCheck), diff --git a/tests/ui/transmute/unnecessary-transmutation.stderr b/tests/ui/transmute/unnecessary-transmutation.stderr index 602e964f5b2b..0132ac4776be 100644 --- a/tests/ui/transmute/unnecessary-transmutation.stderr +++ b/tests/ui/transmute/unnecessary-transmutation.stderr @@ -1,46 +1,85 @@ error: unnecessary transmute - --> $DIR/unnecessary-transmutation.rs:16:29 + --> $DIR/unnecessary-transmutation.rs:7:14 | -LL | pub static X: u8 = unsafe { transmute(true) }; - | ^^^^^^^^^^^^^^^ help: replace this with: `(true) as u8` +LL | unsafe { transmute(x) } + | ---------^^^ + | | + | help: replace this with: `u32::to_ne_bytes` | + = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order note: the lint level is defined here --> $DIR/unnecessary-transmutation.rs:2:9 | LL | #![deny(unnecessary_transmutes)] | ^^^^^^^^^^^^^^^^^^^^^^ -error: unnecessary transmute - --> $DIR/unnecessary-transmutation.rs:18:28 - | -LL | pub const Y: u8 = unsafe { transmute(true) }; - | ^^^^^^^^^^^^^^^ help: replace this with: `(true) as u8` - -error: unnecessary transmute - --> $DIR/unnecessary-transmutation.rs:7:14 - | -LL | unsafe { transmute(x) } - | ^^^^^^^^^^^^ help: replace this with: `u32::to_ne_bytes(x)` - | - = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order - error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:12:14 | LL | unsafe { transmute(from) } - | ^^^^^^^^^^^^^^^ help: replace this with: `(from) as u8` + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - unsafe { transmute(from) } +LL + unsafe { (from) as u8 } + | + +error: unnecessary transmute + --> $DIR/unnecessary-transmutation.rs:16:29 + | +LL | pub static X: u8 = unsafe { transmute(true) }; + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - pub static X: u8 = unsafe { transmute(true) }; +LL + pub static X: u8 = unsafe { (true) as u8 }; + | + +error: unnecessary transmute + --> $DIR/unnecessary-transmutation.rs:18:28 + | +LL | pub const Y: u8 = unsafe { transmute(true) }; + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - pub const Y: u8 = unsafe { transmute(true) }; +LL + pub const Y: u8 = unsafe { (true) as u8 }; + | error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:24:18 | LL | unsafe { transmute(x) } - | ^^^^^^^^^^^^ help: replace this with: `(x) as u8` + | ^^^^^^^^^^^^ + | +help: replace this with + | +LL - unsafe { transmute(x) } +LL + unsafe { (x) as u8 } + | + +error: unnecessary transmute + --> $DIR/unnecessary-transmutation.rs:30:22 + | +LL | const { unsafe { transmute::<_, u8>(true) } }; + | ^^^^^^^^^^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - const { unsafe { transmute::<_, u8>(true) } }; +LL + const { unsafe { (true) as u8 } }; + | error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:33:22 | LL | let x: u16 = transmute(*b"01"); - | ^^^^^^^^^^^^^^^^^ help: replace this with: `u16::from_ne_bytes(*b"01")` + | ---------^^^^^^^^ + | | + | help: replace this with: `u16::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -48,7 +87,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:35:26 | LL | let x: [u8; 2] = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u16::to_ne_bytes(x)` + | ---------^^^ + | | + | help: replace this with: `u16::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -56,7 +97,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:37:22 | LL | let x: u32 = transmute(*b"0123"); - | ^^^^^^^^^^^^^^^^^^^ help: replace this with: `u32::from_ne_bytes(*b"0123")` + | ---------^^^^^^^^^^ + | | + | help: replace this with: `u32::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -64,7 +107,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:39:26 | LL | let x: [u8; 4] = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u32::to_ne_bytes(x)` + | ---------^^^ + | | + | help: replace this with: `u32::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -72,7 +117,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:41:22 | LL | let x: u64 = transmute(*b"feriscat"); - | ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `u64::from_ne_bytes(*b"feriscat")` + | ---------^^^^^^^^^^^^^^ + | | + | help: replace this with: `u64::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -80,7 +127,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:43:26 | LL | let x: [u8; 8] = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u64::to_ne_bytes(x)` + | ---------^^^ + | | + | help: replace this with: `u64::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -88,7 +137,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:46:22 | LL | let y: i16 = transmute(*b"01"); - | ^^^^^^^^^^^^^^^^^ help: replace this with: `i16::from_ne_bytes(*b"01")` + | ---------^^^^^^^^ + | | + | help: replace this with: `i16::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -96,7 +147,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:48:26 | LL | let y: [u8; 2] = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `i16::to_ne_bytes(y)` + | ---------^^^ + | | + | help: replace this with: `i16::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -104,7 +157,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:50:22 | LL | let y: i32 = transmute(*b"0123"); - | ^^^^^^^^^^^^^^^^^^^ help: replace this with: `i32::from_ne_bytes(*b"0123")` + | ---------^^^^^^^^^^ + | | + | help: replace this with: `i32::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -112,7 +167,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:52:26 | LL | let y: [u8; 4] = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `i32::to_ne_bytes(y)` + | ---------^^^ + | | + | help: replace this with: `i32::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -120,7 +177,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:54:22 | LL | let y: i64 = transmute(*b"feriscat"); - | ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `i64::from_ne_bytes(*b"feriscat")` + | ---------^^^^^^^^^^^^^^ + | | + | help: replace this with: `i64::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -128,7 +187,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:56:26 | LL | let y: [u8; 8] = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `i64::to_ne_bytes(y)` + | ---------^^^ + | | + | help: replace this with: `i64::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -136,7 +197,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:59:22 | LL | let z: f32 = transmute(*b"0123"); - | ^^^^^^^^^^^^^^^^^^^ help: replace this with: `f32::from_ne_bytes(*b"0123")` + | ---------^^^^^^^^^^ + | | + | help: replace this with: `f32::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -144,7 +207,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:61:26 | LL | let z: [u8; 4] = transmute(z); - | ^^^^^^^^^^^^ help: replace this with: `f32::to_ne_bytes(z)` + | ---------^^^ + | | + | help: replace this with: `f32::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -152,7 +217,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:63:22 | LL | let z: f64 = transmute(*b"feriscat"); - | ^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `f64::from_ne_bytes(*b"feriscat")` + | ---------^^^^^^^^^^^^^^ + | | + | help: replace this with: `f64::from_ne_bytes` | = help: there's also `from_le_bytes` and `from_be_bytes` if you expect a particular byte order @@ -160,7 +227,9 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:65:26 | LL | let z: [u8; 8] = transmute(z); - | ^^^^^^^^^^^^ help: replace this with: `f64::to_ne_bytes(z)` + | ---------^^^ + | | + | help: replace this with: `f64::to_ne_bytes` | = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order @@ -168,119 +237,164 @@ error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:68:22 | LL | let y: u32 = transmute('🦀'); - | ^^^^^^^^^^^^^^^ help: replace this with: `u32::from('🦀')` + | ---------^^^^^^ + | | + | help: replace this with: `u32::from` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:70:23 | LL | let y: char = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `char::from_u32_unchecked(y)` + | ---------^^^ + | | + | help: replace this with: `char::from_u32_unchecked` | - = help: consider `char::from_u32(…).unwrap()` + = help: consider using `char::from_u32(…).unwrap()` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:72:22 | LL | let y: i32 = transmute('🐱'); - | ^^^^^^^^^^^^^^^ help: replace this with: `u32::from('🐱').cast_signed()` + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - let y: i32 = transmute('🐱'); +LL + let y: i32 = u32::from('🐱').cast_signed(); + | error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:74:23 | LL | let y: char = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `char::from_u32_unchecked(i32::cast_unsigned(y))` + | ^^^^^^^^^^^^ + | + = help: consider using `char::from_u32(i32::cast_unsigned(…)).unwrap()` +help: replace this with + | +LL - let y: char = transmute(y); +LL + let y: char = char::from_u32_unchecked(i32::cast_unsigned(y)); | - = help: consider `char::from_u32(i32::cast_unsigned(…)).unwrap()` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:77:22 | LL | let x: u16 = transmute(8i16); - | ^^^^^^^^^^^^^^^ help: replace this with: `i16::cast_unsigned(8i16)` + | ---------^^^^^^ + | | + | help: replace this with: `i16::cast_unsigned` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:79:22 | LL | let x: i16 = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u16::cast_signed(x)` + | ---------^^^ + | | + | help: replace this with: `u16::cast_signed` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:81:22 | LL | let x: u32 = transmute(4i32); - | ^^^^^^^^^^^^^^^ help: replace this with: `i32::cast_unsigned(4i32)` + | ---------^^^^^^ + | | + | help: replace this with: `i32::cast_unsigned` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:83:22 | LL | let x: i32 = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u32::cast_signed(x)` + | ---------^^^ + | | + | help: replace this with: `u32::cast_signed` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:85:22 | LL | let x: u64 = transmute(7i64); - | ^^^^^^^^^^^^^^^ help: replace this with: `i64::cast_unsigned(7i64)` + | ---------^^^^^^ + | | + | help: replace this with: `i64::cast_unsigned` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:87:22 | LL | let x: i64 = transmute(x); - | ^^^^^^^^^^^^ help: replace this with: `u64::cast_signed(x)` + | ---------^^^ + | | + | help: replace this with: `u64::cast_signed` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:90:22 | LL | let y: f32 = transmute(1u32); - | ^^^^^^^^^^^^^^^ help: replace this with: `f32::from_bits(1u32)` + | ---------^^^^^^ + | | + | help: replace this with: `f32::from_bits` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:92:22 | LL | let y: u32 = transmute(y); - | ^^^^^^^^^^^^ help: replace this with: `f32::to_bits(y)` + | ---------^^^ + | | + | help: replace this with: `f32::to_bits` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:94:22 | LL | let y: f64 = transmute(3u64); - | ^^^^^^^^^^^^^^^ help: replace this with: `f64::from_bits(3u64)` + | ---------^^^^^^ + | | + | help: replace this with: `f64::from_bits` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:96:22 | LL | let y: u64 = transmute(2.0); - | ^^^^^^^^^^^^^^ help: replace this with: `f64::to_bits(2.0)` + | ---------^^^^^ + | | + | help: replace this with: `f64::to_bits` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:99:22 | LL | let y: f64 = transmute(1i64); - | ^^^^^^^^^^^^^^^ help: replace this with: `f64::from_bits(i64::cast_unsigned(1i64))` + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - let y: f64 = transmute(1i64); +LL + let y: f64 = f64::from_bits(i64::cast_unsigned(1i64)); + | error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:101:22 | LL | let y: i64 = transmute(1f64); - | ^^^^^^^^^^^^^^^ help: replace this with: `f64::to_bits(1f64).cast_signed()` + | ^^^^^^^^^^^^^^^ + | +help: replace this with + | +LL - let y: i64 = transmute(1f64); +LL + let y: i64 = f64::to_bits(1f64).cast_signed(); + | error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:106:21 | LL | let z: u8 = transmute(z); - | ^^^^^^^^^^^^ help: replace this with: `u8::from(z)` + | ---------^^^ + | | + | help: replace this with: `u8::from` error: unnecessary transmute --> $DIR/unnecessary-transmutation.rs:111:21 | LL | let z: i8 = transmute(z); - | ^^^^^^^^^^^^ help: replace this with: `i8::from(z)` - -error: unnecessary transmute - --> $DIR/unnecessary-transmutation.rs:30:22 - | -LL | const { unsafe { transmute::<_, u8>(true) } }; - | ^^^^^^^^^^^^^^^^^^^^^^^^ help: replace this with: `(true) as u8` + | ---------^^^ + | | + | help: replace this with: `i8::from` error: aborting due to 40 previous errors From b71a1279a1a0238c8d4875c569721465823645a8 Mon Sep 17 00:00:00 2001 From: onur-ozkan Date: Mon, 26 May 2025 08:08:50 +0300 Subject: [PATCH 12/46] dist: make sure llvm-project submodule is present Signed-off-by: onur-ozkan --- src/bootstrap/src/core/build_steps/dist.rs | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/bootstrap/src/core/build_steps/dist.rs b/src/bootstrap/src/core/build_steps/dist.rs index 253fa224152c..7b5393a115a7 100644 --- a/src/bootstrap/src/core/build_steps/dist.rs +++ b/src/bootstrap/src/core/build_steps/dist.rs @@ -2282,6 +2282,10 @@ impl Step for LlvmTools { } } + if !builder.config.dry_run() { + builder.require_submodule("src/llvm-project", None); + } + builder.ensure(crate::core::build_steps::llvm::Llvm { target }); let mut tarball = Tarball::new(builder, "llvm-tools", &target.triple); @@ -2400,6 +2404,10 @@ impl Step for RustDev { } } + if !builder.config.dry_run() { + builder.require_submodule("src/llvm-project", None); + } + let mut tarball = Tarball::new(builder, "rust-dev", &target.triple); tarball.set_overlay(OverlayKind::Llvm); // LLVM requires a shared object symlink to exist on some platforms. From 0ea12c3c5fd218671ae42a99757a332fba8597cc Mon Sep 17 00:00:00 2001 From: Jieyou Xu Date: Mon, 26 May 2025 00:04:20 +0800 Subject: [PATCH 13/46] cfg_version: pull out dedicated syntax test from feature gate test The feature gate test was dual-purposing causing feature gate errors to distract from syntax exercises. --- tests/ui/cfg/cfg-version/syntax.rs | 152 +++++++++++++ tests/ui/cfg/cfg-version/syntax.stderr | 188 ++++++++++++++++ .../feature-gates/feature-gate-cfg-version.rs | 49 +---- .../feature-gate-cfg-version.stderr | 204 +----------------- 4 files changed, 350 insertions(+), 243 deletions(-) create mode 100644 tests/ui/cfg/cfg-version/syntax.rs create mode 100644 tests/ui/cfg/cfg-version/syntax.stderr diff --git a/tests/ui/cfg/cfg-version/syntax.rs b/tests/ui/cfg/cfg-version/syntax.rs new file mode 100644 index 000000000000..22aab47e1ecd --- /dev/null +++ b/tests/ui/cfg/cfg-version/syntax.rs @@ -0,0 +1,152 @@ +//! Check `#[cfg(version(..))]` parsing. + +#![feature(cfg_version)] + +// Overall grammar +// =============== +// +// `#[cfg(version(..))]` accepts only the `version(VERSION_STRING_LITERAL)` predicate form, where +// only a single string literal is permitted. + +#[cfg(version(42))] +//~^ ERROR expected a version literal +fn not_a_string_literal_simple() {} + +#[cfg(version(1.20))] +//~^ ERROR expected a version literal +fn not_a_string_literal_semver_like() {} + +#[cfg(version(false))] +//~^ ERROR expected a version literal +fn not_a_string_literal_other() {} + +#[cfg(version("1.43", "1.44", "1.45"))] +//~^ ERROR expected single version literal +fn multiple_version_literals() {} + +// The key-value form `cfg(version = "..")` is not considered a valid `cfg(version(..))` usage, but +// it will only trigger the `unexpected_cfgs` lint and not a hard error. + +#[cfg(version = "1.43")] +//~^ WARN unexpected `cfg` condition name: `version` +fn key_value_form() {} + +// Additional version string literal constraints +// ============================================= +// +// The `VERSION_STRING_LITERAL` ("version literal") has additional constraints on its syntactical +// well-formedness. + +// 1. A valid version literal can only constitute of numbers and periods (a "simple" semver version +// string). Non-semver strings or "complex" semver strings (such as build metadata) are not +// considered valid version literals, and will emit a non-lint warning "unknown version literal +// format". + +#[cfg(version("1.43.0"))] +fn valid_major_minor_patch() {} + +#[cfg(version("0.0.0"))] +fn valid_zero_zero_zero_major_minor_patch() {} + +#[cfg(version("foo"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn not_numbers_or_periods() {} + +#[cfg(version("1.20.0-stable"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn complex_semver_with_metadata() {} + +// 2. "Shortened" version strings are permitted but *only* for the omission of the patch number. + +#[cfg(version("1.0"))] +fn valid_major_minor_1() {} + +#[cfg(version("1.43"))] +fn valid_major_minor_2() {} + +#[cfg(not(version("1.44")))] +fn valid_major_minor_negated_smoke_test() {} + +#[cfg(version("0.0"))] +fn valid_zero_zero_major_minor() {} + +#[cfg(version("0.7"))] +fn valid_zero_major_minor() {} + +// 3. Major-only, or other non-Semver-like strings are not permitted. + +#[cfg(version("1"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn invalid_major_only() {} + +#[cfg(version("0"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn invalid_major_only_zero() {} + +#[cfg(version(".7"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn invalid_decimal_like() {} + +// Misc parsing overflow/underflow edge cases +// ========================================== +// +// Check that we report "unknown version literal format" user-facing warnings and not ICEs. + +#[cfg(version("-1"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn invalid_major_only_negative() {} + +// Implementation detail: we store rustc version as `{ major: u16, minor: u16, patch: u16 }`. + +#[cfg(version("65536"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn exceed_u16_major() {} + +#[cfg(version("1.65536.0"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn exceed_u16_minor() {} + +#[cfg(version("1.0.65536"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn exceed_u16_patch() {} + +#[cfg(version("65536.0.65536"))] +//~^ WARN unknown version literal format, assuming it refers to a future version +fn exceed_u16_mixed() {} + +// Usage as `cfg!()` +// ================= + +fn cfg_usage() { + assert!(cfg!(version("1.0"))); + assert!(cfg!(version("1.43"))); + assert!(cfg!(version("1.43.0"))); + + assert!(cfg!(version("foo"))); + //~^ WARN unknown version literal format, assuming it refers to a future version + assert!(cfg!(version("1.20.0-stable"))); + //~^ WARN unknown version literal format, assuming it refers to a future version + + assert!(cfg!(version = "1.43")); + //~^ WARN unexpected `cfg` condition name: `version` +} + +fn main() { + cfg_usage(); + + // `cfg(version = "..")` is not a valid `cfg_version` form, but it only triggers + // `unexpected_cfgs` lint, and `cfg(version = "..")` eval to `false`. + key_value_form(); //~ ERROR cannot find function + + // Invalid version literal formats within valid `cfg(version(..))` form should also cause + // `cfg(version(..))` eval to `false`. + not_numbers_or_periods(); //~ ERROR cannot find function + complex_semver_with_metadata(); //~ ERROR cannot find function + invalid_major_only(); //~ ERROR cannot find function + invalid_major_only_zero(); //~ ERROR cannot find function + invalid_major_only_negative(); //~ ERROR cannot find function + exceed_u16_major(); //~ ERROR cannot find function + exceed_u16_minor(); //~ ERROR cannot find function + exceed_u16_patch(); //~ ERROR cannot find function + exceed_u16_mixed(); //~ ERROR cannot find function +} diff --git a/tests/ui/cfg/cfg-version/syntax.stderr b/tests/ui/cfg/cfg-version/syntax.stderr new file mode 100644 index 000000000000..2facd9607631 --- /dev/null +++ b/tests/ui/cfg/cfg-version/syntax.stderr @@ -0,0 +1,188 @@ +error: expected a version literal + --> $DIR/syntax.rs:11:15 + | +LL | #[cfg(version(42))] + | ^^ + +error: expected a version literal + --> $DIR/syntax.rs:15:15 + | +LL | #[cfg(version(1.20))] + | ^^^^ + +error: expected a version literal + --> $DIR/syntax.rs:19:15 + | +LL | #[cfg(version(false))] + | ^^^^^ + +error: expected single version literal + --> $DIR/syntax.rs:23:7 + | +LL | #[cfg(version("1.43", "1.44", "1.45"))] + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:51:15 + | +LL | #[cfg(version("foo"))] + | ^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:55:15 + | +LL | #[cfg(version("1.20.0-stable"))] + | ^^^^^^^^^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:78:15 + | +LL | #[cfg(version("1"))] + | ^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:82:15 + | +LL | #[cfg(version("0"))] + | ^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:86:15 + | +LL | #[cfg(version(".7"))] + | ^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:95:15 + | +LL | #[cfg(version("-1"))] + | ^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:101:15 + | +LL | #[cfg(version("65536"))] + | ^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:105:15 + | +LL | #[cfg(version("1.65536.0"))] + | ^^^^^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:109:15 + | +LL | #[cfg(version("1.0.65536"))] + | ^^^^^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:113:15 + | +LL | #[cfg(version("65536.0.65536"))] + | ^^^^^^^^^^^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:125:26 + | +LL | assert!(cfg!(version("foo"))); + | ^^^^^ + +warning: unknown version literal format, assuming it refers to a future version + --> $DIR/syntax.rs:127:26 + | +LL | assert!(cfg!(version("1.20.0-stable"))); + | ^^^^^^^^^^^^^^^ + +warning: unexpected `cfg` condition name: `version` + --> $DIR/syntax.rs:30:7 + | +LL | #[cfg(version = "1.43")] + | ^^^^^^^^^^^^^^^^ + | + = help: to expect this configuration use `--check-cfg=cfg(version, values("1.43"))` + = note: see for more information about checking conditional configuration + = note: `#[warn(unexpected_cfgs)]` on by default +help: there is a similar config predicate: `version("..")` + | +LL - #[cfg(version = "1.43")] +LL + #[cfg(version("1.43"))] + | + +warning: unexpected `cfg` condition name: `version` + --> $DIR/syntax.rs:130:18 + | +LL | assert!(cfg!(version = "1.43")); + | ^^^^^^^^^^^^^^^^ + | + = help: to expect this configuration use `--check-cfg=cfg(version, values("1.43"))` + = note: see for more information about checking conditional configuration +help: there is a similar config predicate: `version("..")` + | +LL - assert!(cfg!(version = "1.43")); +LL + assert!(cfg!(version("1.43"))); + | + +error[E0425]: cannot find function `key_value_form` in this scope + --> $DIR/syntax.rs:139:5 + | +LL | key_value_form(); + | ^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `not_numbers_or_periods` in this scope + --> $DIR/syntax.rs:143:5 + | +LL | not_numbers_or_periods(); + | ^^^^^^^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `complex_semver_with_metadata` in this scope + --> $DIR/syntax.rs:144:5 + | +LL | complex_semver_with_metadata(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `invalid_major_only` in this scope + --> $DIR/syntax.rs:145:5 + | +LL | invalid_major_only(); + | ^^^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `invalid_major_only_zero` in this scope + --> $DIR/syntax.rs:146:5 + | +LL | invalid_major_only_zero(); + | ^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `invalid_major_only_negative` in this scope + --> $DIR/syntax.rs:147:5 + | +LL | invalid_major_only_negative(); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `exceed_u16_major` in this scope + --> $DIR/syntax.rs:148:5 + | +LL | exceed_u16_major(); + | ^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `exceed_u16_minor` in this scope + --> $DIR/syntax.rs:149:5 + | +LL | exceed_u16_minor(); + | ^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `exceed_u16_patch` in this scope + --> $DIR/syntax.rs:150:5 + | +LL | exceed_u16_patch(); + | ^^^^^^^^^^^^^^^^ not found in this scope + +error[E0425]: cannot find function `exceed_u16_mixed` in this scope + --> $DIR/syntax.rs:151:5 + | +LL | exceed_u16_mixed(); + | ^^^^^^^^^^^^^^^^ not found in this scope + +error: aborting due to 14 previous errors; 14 warnings emitted + +For more information about this error, try `rustc --explain E0425`. diff --git a/tests/ui/feature-gates/feature-gate-cfg-version.rs b/tests/ui/feature-gates/feature-gate-cfg-version.rs index e35784a68d10..ec2446cc1464 100644 --- a/tests/ui/feature-gates/feature-gate-cfg-version.rs +++ b/tests/ui/feature-gates/feature-gate-cfg-version.rs @@ -1,49 +1,12 @@ -#[cfg(version(42))] //~ ERROR: expected a version literal -//~^ ERROR `cfg(version)` is experimental and subject to change -fn foo() {} -#[cfg(version(1.20))] //~ ERROR: expected a version literal -//~^ ERROR `cfg(version)` is experimental and subject to change -fn foo() -> bool { true } -#[cfg(version("1.44"))] -//~^ ERROR `cfg(version)` is experimental and subject to change -fn foo() -> bool { true } -#[cfg(not(version("1.44")))] -//~^ ERROR `cfg(version)` is experimental and subject to change -fn foo() -> bool { false } +//! Feature gate test for `cfg_version`. +//! +//! Tracking issue: #64796. -#[cfg(version("1.43", "1.44", "1.45"))] //~ ERROR: expected single version literal -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version(false))] //~ ERROR: expected a version literal -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("foo"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("999"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("-1"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("65536"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("0"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { true } -#[cfg(version("1.0"))] -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { true } -#[cfg(version("1.65536.2"))] //~ WARNING: unknown version literal format -//~^ ERROR `cfg(version)` is experimental and subject to change -fn bar() -> bool { false } -#[cfg(version("1.20.0-stable"))] //~ WARNING: unknown version literal format +#[cfg(version("1.42"))] //~^ ERROR `cfg(version)` is experimental and subject to change fn bar() {} fn main() { - assert!(foo()); - assert!(bar()); - assert!(cfg!(version("1.42"))); //~ ERROR `cfg(version)` is experimental and subject to change + assert!(cfg!(version("1.42"))); + //~^ ERROR `cfg(version)` is experimental and subject to change } diff --git a/tests/ui/feature-gates/feature-gate-cfg-version.stderr b/tests/ui/feature-gates/feature-gate-cfg-version.stderr index c1c3e8e5897a..7cb2f1e07afe 100644 --- a/tests/ui/feature-gates/feature-gate-cfg-version.stderr +++ b/tests/ui/feature-gates/feature-gate-cfg-version.stderr @@ -1,39 +1,7 @@ error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:1:7 + --> $DIR/feature-gate-cfg-version.rs:5:7 | -LL | #[cfg(version(42))] - | ^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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: expected a version literal - --> $DIR/feature-gate-cfg-version.rs:1:15 - | -LL | #[cfg(version(42))] - | ^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:4:7 - | -LL | #[cfg(version(1.20))] - | ^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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: expected a version literal - --> $DIR/feature-gate-cfg-version.rs:4:15 - | -LL | #[cfg(version(1.20))] - | ^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:7:7 - | -LL | #[cfg(version("1.44"))] +LL | #[cfg(version("1.42"))] | ^^^^^^^^^^^^^^^ | = note: see issue #64796 for more information @@ -41,171 +9,7 @@ LL | #[cfg(version("1.44"))] = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:10:11 - | -LL | #[cfg(not(version("1.44")))] - | ^^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:14:7 - | -LL | #[cfg(version("1.43", "1.44", "1.45"))] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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: expected single version literal - --> $DIR/feature-gate-cfg-version.rs:14:7 - | -LL | #[cfg(version("1.43", "1.44", "1.45"))] - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:17:7 - | -LL | #[cfg(version(false))] - | ^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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: expected a version literal - --> $DIR/feature-gate-cfg-version.rs:17:15 - | -LL | #[cfg(version(false))] - | ^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:20:7 - | -LL | #[cfg(version("foo"))] - | ^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:20:15 - | -LL | #[cfg(version("foo"))] - | ^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:23:7 - | -LL | #[cfg(version("999"))] - | ^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:23:15 - | -LL | #[cfg(version("999"))] - | ^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:26:7 - | -LL | #[cfg(version("-1"))] - | ^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:26:15 - | -LL | #[cfg(version("-1"))] - | ^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:29:7 - | -LL | #[cfg(version("65536"))] - | ^^^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:29:15 - | -LL | #[cfg(version("65536"))] - | ^^^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:32:7 - | -LL | #[cfg(version("0"))] - | ^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:32:15 - | -LL | #[cfg(version("0"))] - | ^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:35:7 - | -LL | #[cfg(version("1.0"))] - | ^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` 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[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:38:7 - | -LL | #[cfg(version("1.65536.2"))] - | ^^^^^^^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:38:15 - | -LL | #[cfg(version("1.65536.2"))] - | ^^^^^^^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:41:7 - | -LL | #[cfg(version("1.20.0-stable"))] - | ^^^^^^^^^^^^^^^^^^^^^^^^ - | - = note: see issue #64796 for more information - = help: add `#![feature(cfg_version)]` to the crate attributes to enable - = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date - -warning: unknown version literal format, assuming it refers to a future version - --> $DIR/feature-gate-cfg-version.rs:41:15 - | -LL | #[cfg(version("1.20.0-stable"))] - | ^^^^^^^^^^^^^^^ - -error[E0658]: `cfg(version)` is experimental and subject to change - --> $DIR/feature-gate-cfg-version.rs:48:18 + --> $DIR/feature-gate-cfg-version.rs:10:18 | LL | assert!(cfg!(version("1.42"))); | ^^^^^^^^^^^^^^^ @@ -214,6 +18,6 @@ LL | assert!(cfg!(version("1.42"))); = help: add `#![feature(cfg_version)]` 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: aborting due to 19 previous errors; 7 warnings emitted +error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0658`. From 5e31cd30aae245aaa1374e12521667b8c728402d Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Mon, 26 May 2025 12:19:34 +0000 Subject: [PATCH 14/46] Support opaque_types_defined_by for SyntheticCoroutineBody --- compiler/rustc_ty_utils/src/opaque_types.rs | 8 +++++--- .../async-await/async-closures/promote-in-body.rs | 13 +++++++++++++ 2 files changed, 18 insertions(+), 3 deletions(-) create mode 100644 tests/ui/async-await/async-closures/promote-in-body.rs diff --git a/compiler/rustc_ty_utils/src/opaque_types.rs b/compiler/rustc_ty_utils/src/opaque_types.rs index 841f602d985c..3b4482146d4f 100644 --- a/compiler/rustc_ty_utils/src/opaque_types.rs +++ b/compiler/rustc_ty_utils/src/opaque_types.rs @@ -321,7 +321,10 @@ fn opaque_types_defined_by<'tcx>( collector.collect_taits_declared_in_body(); } // Closures and coroutines are type checked with their parent - DefKind::Closure | DefKind::InlineConst => { + // Note that we also support `SyntheticCoroutineBody` since we create + // a MIR body for the def kind, and some MIR passes (like promotion) + // may require doing analysis using its typing env. + DefKind::Closure | DefKind::InlineConst | DefKind::SyntheticCoroutineBody => { collector.opaques.extend(tcx.opaque_types_defined_by(tcx.local_parent(item))); } DefKind::AssocTy | DefKind::TyAlias | DefKind::GlobalAsm => {} @@ -343,8 +346,7 @@ fn opaque_types_defined_by<'tcx>( | DefKind::ForeignMod | DefKind::Field | DefKind::LifetimeParam - | DefKind::Impl { .. } - | DefKind::SyntheticCoroutineBody => { + | DefKind::Impl { .. } => { span_bug!( tcx.def_span(item), "`opaque_types_defined_by` not defined for {} `{item:?}`", diff --git a/tests/ui/async-await/async-closures/promote-in-body.rs b/tests/ui/async-await/async-closures/promote-in-body.rs new file mode 100644 index 000000000000..ea95d680987e --- /dev/null +++ b/tests/ui/async-await/async-closures/promote-in-body.rs @@ -0,0 +1,13 @@ +//@ build-pass +//@ compile-flags: --crate-type=lib +//@ edition: 2024 + +union U { + f: i32, +} + +fn foo() { + async || { + &U { f: 1 } + }; +} From 1d35ac9ce0e5e5265fae1b2a4754013c1e479960 Mon Sep 17 00:00:00 2001 From: Lukas Wirth Date: Mon, 26 May 2025 14:47:19 +0200 Subject: [PATCH 15/46] Add missing edition directives for async-await tests --- .../async-fn/edition-2015-not-async-bound.rs | 1 + tests/ui/async-await/async-fn/edition-2015.rs | 1 + .../async-await/async-fn/edition-2015.stderr | 8 +++---- .../2015-edition-error-various-positions.rs | 1 + ...015-edition-error-various-positions.stderr | 22 +++++++++---------- .../await-keyword/2015-edition-warning.fixed | 1 + .../await-keyword/2015-edition-warning.rs | 1 + .../await-keyword/2015-edition-warning.stderr | 14 ++++++------ tests/ui/async-await/for-await-2015.rs | 1 + ...34-raw-ident-suggestion.edition2015.stderr | 6 ++--- ...34-raw-ident-suggestion.edition2018.stderr | 6 ++--- .../issue-65634-raw-ident-suggestion.rs | 1 + ...uggest-switching-edition-on-await-cargo.rs | 1 + ...st-switching-edition-on-await-cargo.stderr | 8 +++---- .../suggest-switching-edition-on-await.rs | 1 + .../suggest-switching-edition-on-await.stderr | 8 +++---- 16 files changed, 45 insertions(+), 36 deletions(-) diff --git a/tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs b/tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs index d222ddc081ef..60a7dff7d499 100644 --- a/tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs +++ b/tests/ui/async-await/async-fn/edition-2015-not-async-bound.rs @@ -1,3 +1,4 @@ +//@ edition:2015 //@ check-pass // Make sure that we don't eagerly recover `async ::Bound` in edition 2015. diff --git a/tests/ui/async-await/async-fn/edition-2015.rs b/tests/ui/async-await/async-fn/edition-2015.rs index 341b9b10e671..5a81df3a4e4d 100644 --- a/tests/ui/async-await/async-fn/edition-2015.rs +++ b/tests/ui/async-await/async-fn/edition-2015.rs @@ -1,3 +1,4 @@ +//@ edition:2015 fn foo(x: impl async Fn()) -> impl async Fn() { x } //~^ ERROR `async` trait bounds are only allowed in Rust 2018 or later //~| ERROR `async` trait bounds are only allowed in Rust 2018 or later diff --git a/tests/ui/async-await/async-fn/edition-2015.stderr b/tests/ui/async-await/async-fn/edition-2015.stderr index ca9e64cd1bb0..0bec00c162c9 100644 --- a/tests/ui/async-await/async-fn/edition-2015.stderr +++ b/tests/ui/async-await/async-fn/edition-2015.stderr @@ -1,5 +1,5 @@ error: `async` trait bounds are only allowed in Rust 2018 or later - --> $DIR/edition-2015.rs:1:16 + --> $DIR/edition-2015.rs:2:16 | LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } | ^^^^^ @@ -8,7 +8,7 @@ LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } = note: for more on editions, read https://doc.rust-lang.org/edition-guide error: `async` trait bounds are only allowed in Rust 2018 or later - --> $DIR/edition-2015.rs:1:36 + --> $DIR/edition-2015.rs:2:36 | LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } | ^^^^^ @@ -17,7 +17,7 @@ LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0658]: `async` trait bounds are unstable - --> $DIR/edition-2015.rs:1:16 + --> $DIR/edition-2015.rs:2:16 | LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } | ^^^^^ @@ -28,7 +28,7 @@ LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } = help: use the desugared name of the async trait, such as `AsyncFn` error[E0658]: `async` trait bounds are unstable - --> $DIR/edition-2015.rs:1:36 + --> $DIR/edition-2015.rs:2:36 | LL | fn foo(x: impl async Fn()) -> impl async Fn() { x } | ^^^^^ diff --git a/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.rs b/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.rs index 50c1639996ee..714a3328ecf6 100644 --- a/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.rs +++ b/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.rs @@ -1,3 +1,4 @@ +//@ edition:2015 #![allow(non_camel_case_types)] #![deny(keyword_idents)] diff --git a/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr b/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr index 8cea73f86514..70900e612f48 100644 --- a/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr +++ b/tests/ui/async-await/await-keyword/2015-edition-error-various-positions.stderr @@ -1,5 +1,5 @@ error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:5:13 + --> $DIR/2015-edition-error-various-positions.rs:6:13 | LL | pub mod await { | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -7,14 +7,14 @@ LL | pub mod await { = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #49716 note: the lint level is defined here - --> $DIR/2015-edition-error-various-positions.rs:2:9 + --> $DIR/2015-edition-error-various-positions.rs:3:9 | LL | #![deny(keyword_idents)] | ^^^^^^^^^^^^^^ = note: `#[deny(keyword_idents_2018)]` implied by `#[deny(keyword_idents)]` error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:7:20 + --> $DIR/2015-edition-error-various-positions.rs:8:20 | LL | pub struct await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -23,7 +23,7 @@ LL | pub struct await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:11:16 + --> $DIR/2015-edition-error-various-positions.rs:12:16 | LL | use outer_mod::await::await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -32,7 +32,7 @@ LL | use outer_mod::await::await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:11:23 + --> $DIR/2015-edition-error-various-positions.rs:12:23 | LL | use outer_mod::await::await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -41,7 +41,7 @@ LL | use outer_mod::await::await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:16:14 + --> $DIR/2015-edition-error-various-positions.rs:17:14 | LL | struct Foo { await: () } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -50,7 +50,7 @@ LL | struct Foo { await: () } = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:20:15 + --> $DIR/2015-edition-error-various-positions.rs:21:15 | LL | impl Foo { fn await() {} } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -59,7 +59,7 @@ LL | impl Foo { fn await() {} } = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:24:14 + --> $DIR/2015-edition-error-various-positions.rs:25:14 | LL | macro_rules! await { | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -68,7 +68,7 @@ LL | macro_rules! await { = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:31:5 + --> $DIR/2015-edition-error-various-positions.rs:32:5 | LL | await!(); | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -77,7 +77,7 @@ LL | await!(); = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:34:11 + --> $DIR/2015-edition-error-various-positions.rs:35:11 | LL | match await { await => {} } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -86,7 +86,7 @@ LL | match await { await => {} } = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-error-various-positions.rs:34:19 + --> $DIR/2015-edition-error-various-positions.rs:35:19 | LL | match await { await => {} } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` diff --git a/tests/ui/async-await/await-keyword/2015-edition-warning.fixed b/tests/ui/async-await/await-keyword/2015-edition-warning.fixed index 4cb8017c7ee3..45758cb10391 100644 --- a/tests/ui/async-await/await-keyword/2015-edition-warning.fixed +++ b/tests/ui/async-await/await-keyword/2015-edition-warning.fixed @@ -1,3 +1,4 @@ +//@ edition:2015 //@ run-rustfix #![allow(non_camel_case_types)] diff --git a/tests/ui/async-await/await-keyword/2015-edition-warning.rs b/tests/ui/async-await/await-keyword/2015-edition-warning.rs index d591a5af8218..ea26abe072b3 100644 --- a/tests/ui/async-await/await-keyword/2015-edition-warning.rs +++ b/tests/ui/async-await/await-keyword/2015-edition-warning.rs @@ -1,3 +1,4 @@ +//@ edition:2015 //@ run-rustfix #![allow(non_camel_case_types)] diff --git a/tests/ui/async-await/await-keyword/2015-edition-warning.stderr b/tests/ui/async-await/await-keyword/2015-edition-warning.stderr index 70b7fa52a19c..9d19a09092b9 100644 --- a/tests/ui/async-await/await-keyword/2015-edition-warning.stderr +++ b/tests/ui/async-await/await-keyword/2015-edition-warning.stderr @@ -1,5 +1,5 @@ error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:7:13 + --> $DIR/2015-edition-warning.rs:8:13 | LL | pub mod await { | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -7,14 +7,14 @@ LL | pub mod await { = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! = note: for more information, see issue #49716 note: the lint level is defined here - --> $DIR/2015-edition-warning.rs:4:9 + --> $DIR/2015-edition-warning.rs:5:9 | LL | #![deny(keyword_idents)] | ^^^^^^^^^^^^^^ = note: `#[deny(keyword_idents_2018)]` implied by `#[deny(keyword_idents)]` error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:10:20 + --> $DIR/2015-edition-warning.rs:11:20 | LL | pub struct await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -23,7 +23,7 @@ LL | pub struct await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:15:16 + --> $DIR/2015-edition-warning.rs:16:16 | LL | use outer_mod::await::await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -32,7 +32,7 @@ LL | use outer_mod::await::await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:15:23 + --> $DIR/2015-edition-warning.rs:16:23 | LL | use outer_mod::await::await; | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -41,7 +41,7 @@ LL | use outer_mod::await::await; = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:22:11 + --> $DIR/2015-edition-warning.rs:23:11 | LL | match await { await => {} } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` @@ -50,7 +50,7 @@ LL | match await { await => {} } = note: for more information, see issue #49716 error: `await` is a keyword in the 2018 edition - --> $DIR/2015-edition-warning.rs:22:19 + --> $DIR/2015-edition-warning.rs:23:19 | LL | match await { await => {} } | ^^^^^ help: you can use a raw identifier to stay compatible: `r#await` diff --git a/tests/ui/async-await/for-await-2015.rs b/tests/ui/async-await/for-await-2015.rs index 89ff256da1dd..c2bd39c84466 100644 --- a/tests/ui/async-await/for-await-2015.rs +++ b/tests/ui/async-await/for-await-2015.rs @@ -1,3 +1,4 @@ +//@ edition:2015 //@ check-pass #![feature(async_for_loop)] diff --git a/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2015.stderr b/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2015.stderr index 2bdc1347c815..8ce4d4ea06ac 100644 --- a/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2015.stderr +++ b/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2015.stderr @@ -1,16 +1,16 @@ error[E0034]: multiple applicable items in scope - --> $DIR/issue-65634-raw-ident-suggestion.rs:24:13 + --> $DIR/issue-65634-raw-ident-suggestion.rs:25:13 | LL | r#fn {}.r#struct(); | ^^^^^^^^ multiple `r#struct` found | note: candidate #1 is defined in an impl of the trait `async` for the type `r#fn` - --> $DIR/issue-65634-raw-ident-suggestion.rs:7:5 + --> $DIR/issue-65634-raw-ident-suggestion.rs:8:5 | LL | fn r#struct(&self) { | ^^^^^^^^^^^^^^^^^^ note: candidate #2 is defined in an impl of the trait `await` for the type `r#fn` - --> $DIR/issue-65634-raw-ident-suggestion.rs:13:5 + --> $DIR/issue-65634-raw-ident-suggestion.rs:14:5 | LL | fn r#struct(&self) { | ^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2018.stderr b/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2018.stderr index ab10ab749fed..d910ef9872cd 100644 --- a/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2018.stderr +++ b/tests/ui/async-await/issue-65634-raw-ident-suggestion.edition2018.stderr @@ -1,16 +1,16 @@ error[E0034]: multiple applicable items in scope - --> $DIR/issue-65634-raw-ident-suggestion.rs:24:13 + --> $DIR/issue-65634-raw-ident-suggestion.rs:25:13 | LL | r#fn {}.r#struct(); | ^^^^^^^^ multiple `r#struct` found | note: candidate #1 is defined in an impl of the trait `r#async` for the type `r#fn` - --> $DIR/issue-65634-raw-ident-suggestion.rs:7:5 + --> $DIR/issue-65634-raw-ident-suggestion.rs:8:5 | LL | fn r#struct(&self) { | ^^^^^^^^^^^^^^^^^^ note: candidate #2 is defined in an impl of the trait `r#await` for the type `r#fn` - --> $DIR/issue-65634-raw-ident-suggestion.rs:13:5 + --> $DIR/issue-65634-raw-ident-suggestion.rs:14:5 | LL | fn r#struct(&self) { | ^^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/async-await/issue-65634-raw-ident-suggestion.rs b/tests/ui/async-await/issue-65634-raw-ident-suggestion.rs index ef5760f4846b..98f5b6dd9f98 100644 --- a/tests/ui/async-await/issue-65634-raw-ident-suggestion.rs +++ b/tests/ui/async-await/issue-65634-raw-ident-suggestion.rs @@ -1,4 +1,5 @@ //@ revisions: edition2015 edition2018 +//@[edition2015]edition:2015 //@[edition2018]edition:2018 #![allow(non_camel_case_types)] diff --git a/tests/ui/async-await/suggest-switching-edition-on-await-cargo.rs b/tests/ui/async-await/suggest-switching-edition-on-await-cargo.rs index bcb5cb94b77c..555b01105215 100644 --- a/tests/ui/async-await/suggest-switching-edition-on-await-cargo.rs +++ b/tests/ui/async-await/suggest-switching-edition-on-await-cargo.rs @@ -1,3 +1,4 @@ +//@ edition:2015 //@ rustc-env:CARGO_CRATE_NAME=foo use std::pin::Pin; diff --git a/tests/ui/async-await/suggest-switching-edition-on-await-cargo.stderr b/tests/ui/async-await/suggest-switching-edition-on-await-cargo.stderr index 11f5825c232e..c5f1793731ea 100644 --- a/tests/ui/async-await/suggest-switching-edition-on-await-cargo.stderr +++ b/tests/ui/async-await/suggest-switching-edition-on-await-cargo.stderr @@ -1,5 +1,5 @@ error[E0609]: no field `await` on type `await_on_struct_missing::S` - --> $DIR/suggest-switching-edition-on-await-cargo.rs:11:7 + --> $DIR/suggest-switching-edition-on-await-cargo.rs:12:7 | LL | x.await; | ^^^^^ unknown field @@ -9,7 +9,7 @@ LL | x.await; = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0609]: no field `await` on type `await_on_struct_similar::S` - --> $DIR/suggest-switching-edition-on-await-cargo.rs:24:7 + --> $DIR/suggest-switching-edition-on-await-cargo.rs:25:7 | LL | x.await; | ^^^^^ unknown field @@ -24,7 +24,7 @@ LL + x.awai; | error[E0609]: no field `await` on type `Pin<&mut dyn Future>` - --> $DIR/suggest-switching-edition-on-await-cargo.rs:34:7 + --> $DIR/suggest-switching-edition-on-await-cargo.rs:35:7 | LL | x.await; | ^^^^^ unknown field @@ -34,7 +34,7 @@ LL | x.await; = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0609]: no field `await` on type `impl Future` - --> $DIR/suggest-switching-edition-on-await-cargo.rs:43:7 + --> $DIR/suggest-switching-edition-on-await-cargo.rs:44:7 | LL | x.await; | ^^^^^ unknown field diff --git a/tests/ui/async-await/suggest-switching-edition-on-await.rs b/tests/ui/async-await/suggest-switching-edition-on-await.rs index 0907a87e02cf..6b639fa0b4ea 100644 --- a/tests/ui/async-await/suggest-switching-edition-on-await.rs +++ b/tests/ui/async-await/suggest-switching-edition-on-await.rs @@ -1,3 +1,4 @@ +//@ edition:2015 use std::pin::Pin; use std::future::Future; diff --git a/tests/ui/async-await/suggest-switching-edition-on-await.stderr b/tests/ui/async-await/suggest-switching-edition-on-await.stderr index 2ede8d5b7f42..bf03016222ea 100644 --- a/tests/ui/async-await/suggest-switching-edition-on-await.stderr +++ b/tests/ui/async-await/suggest-switching-edition-on-await.stderr @@ -1,5 +1,5 @@ error[E0609]: no field `await` on type `await_on_struct_missing::S` - --> $DIR/suggest-switching-edition-on-await.rs:9:7 + --> $DIR/suggest-switching-edition-on-await.rs:10:7 | LL | x.await; | ^^^^^ unknown field @@ -9,7 +9,7 @@ LL | x.await; = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0609]: no field `await` on type `await_on_struct_similar::S` - --> $DIR/suggest-switching-edition-on-await.rs:22:7 + --> $DIR/suggest-switching-edition-on-await.rs:23:7 | LL | x.await; | ^^^^^ unknown field @@ -24,7 +24,7 @@ LL + x.awai; | error[E0609]: no field `await` on type `Pin<&mut dyn Future>` - --> $DIR/suggest-switching-edition-on-await.rs:32:7 + --> $DIR/suggest-switching-edition-on-await.rs:33:7 | LL | x.await; | ^^^^^ unknown field @@ -34,7 +34,7 @@ LL | x.await; = note: for more on editions, read https://doc.rust-lang.org/edition-guide error[E0609]: no field `await` on type `impl Future` - --> $DIR/suggest-switching-edition-on-await.rs:41:7 + --> $DIR/suggest-switching-edition-on-await.rs:42:7 | LL | x.await; | ^^^^^ unknown field From 6ec41a79501cb29ef45f62b123cf097cec9eb3dd Mon Sep 17 00:00:00 2001 From: MarcoIeni <11428655+MarcoIeni@users.noreply.github.com> Date: Mon, 26 May 2025 16:52:24 +0200 Subject: [PATCH 16/46] ci: fix llvm test coverage --- src/ci/github-actions/jobs.yml | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/ci/github-actions/jobs.yml b/src/ci/github-actions/jobs.yml index 1d175bd97e6a..e257f231184d 100644 --- a/src/ci/github-actions/jobs.yml +++ b/src/ci/github-actions/jobs.yml @@ -332,7 +332,7 @@ auto: env: RUST_BACKTRACE: 1 IMAGE: x86_64-gnu-llvm-20 - DOCKER_SCRIPT: stage_2_test_set1.sh + DOCKER_SCRIPT: stage_2_test_set2.sh <<: *job-linux-4c # Skip tests that run in x86_64-gnu-llvm-20-{1,3} @@ -357,7 +357,7 @@ auto: env: RUST_BACKTRACE: 1 IMAGE: x86_64-gnu-llvm-19 - DOCKER_SCRIPT: stage_2_test_set1.sh + DOCKER_SCRIPT: stage_2_test_set2.sh <<: *job-linux-4c # Skip tests that run in x86_64-gnu-llvm-19-{1,3} From c27aff35caad45093b52988994c2bc9b5631b544 Mon Sep 17 00:00:00 2001 From: Boxy Date: Mon, 26 May 2025 16:35:36 +0100 Subject: [PATCH 17/46] Add test --- .../copy-check-when-count-inferred-later.rs | 11 +++++++++++ .../copy-check-when-count-inferred-later.stderr | 14 ++++++++++++++ 2 files changed, 25 insertions(+) create mode 100644 tests/ui/repeat-expr/copy-check-when-count-inferred-later.rs create mode 100644 tests/ui/repeat-expr/copy-check-when-count-inferred-later.stderr diff --git a/tests/ui/repeat-expr/copy-check-when-count-inferred-later.rs b/tests/ui/repeat-expr/copy-check-when-count-inferred-later.rs new file mode 100644 index 000000000000..b9d123cbefae --- /dev/null +++ b/tests/ui/repeat-expr/copy-check-when-count-inferred-later.rs @@ -0,0 +1,11 @@ +#![feature(generic_arg_infer)] + +// Test that we enforce repeat expr element types are `Copy` even +// when the repeat count is only inferred at a later point in type +// checking. + +fn main() { + let a = [String::new(); _]; + //~^ ERROR: the trait bound `String: Copy` is not satisfied + let b: [_; 2] = a; +} diff --git a/tests/ui/repeat-expr/copy-check-when-count-inferred-later.stderr b/tests/ui/repeat-expr/copy-check-when-count-inferred-later.stderr new file mode 100644 index 000000000000..d974f5add505 --- /dev/null +++ b/tests/ui/repeat-expr/copy-check-when-count-inferred-later.stderr @@ -0,0 +1,14 @@ +error[E0277]: the trait bound `String: Copy` is not satisfied + --> $DIR/copy-check-when-count-inferred-later.rs:8:14 + | +LL | let a = [String::new(); _]; + | ^^^^^^^^^^^^^ + | | + | the trait `Copy` is not implemented for `String` + | help: create an inline `const` block: `const { String::new() }` + | + = note: the `Copy` trait is required because this value will be copied for each element of the array + +error: aborting due to 1 previous error + +For more information about this error, try `rustc --explain E0277`. From 0497f31122e0c5908bf68d83f3e8ba5b559ae3d6 Mon Sep 17 00:00:00 2001 From: Tshepang Mbambo Date: Mon, 26 May 2025 17:55:03 +0200 Subject: [PATCH 18/46] rustc book: fix erratic sentence by making it more simple --- src/doc/rustc/src/check-cfg/cargo-specifics.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/doc/rustc/src/check-cfg/cargo-specifics.md b/src/doc/rustc/src/check-cfg/cargo-specifics.md index 371bbd26e943..62a4dd1a3901 100644 --- a/src/doc/rustc/src/check-cfg/cargo-specifics.md +++ b/src/doc/rustc/src/check-cfg/cargo-specifics.md @@ -9,8 +9,8 @@ rustc, not Cargo. --> This document is intended to summarize the principal ways Cargo interacts with -the `unexpected_cfgs` lint and `--check-cfg` flag. It is not intended to provide -individual details, for that refer to the [`--check-cfg` documentation](../check-cfg.md) and +the `unexpected_cfgs` lint and `--check-cfg` flag. +For individual details, refer to the [`--check-cfg` documentation](../check-cfg.md) and to the [Cargo book](../../cargo/index.html). > The full list of well known cfgs (aka builtins) can be found under [Checking conditional configurations / Well known names and values](../check-cfg.md#well-known-names-and-values). From 19802e8e9cf2732768c89dcfe1c5fa0eb88cd558 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Tue, 27 May 2025 02:06:40 +1000 Subject: [PATCH 19/46] Remove an unnecessary use of `Box::into_inner`. --- compiler/rustc_errors/src/diagnostic.rs | 2 +- compiler/rustc_errors/src/lib.rs | 1 - 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs index 539ecfbb42e2..a11f81b55bb8 100644 --- a/compiler/rustc_errors/src/diagnostic.rs +++ b/compiler/rustc_errors/src/diagnostic.rs @@ -1325,7 +1325,7 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> { )); self.note("consider using `--verbose` to print the full type name to the console"); } - Box::into_inner(self.diag.take().unwrap()) + *self.diag.take().unwrap() } /// This method allows us to access the path of the file where "long types" are written to. diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index f8e19e507789..bd421a441f95 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -12,7 +12,6 @@ #![feature(array_windows)] #![feature(assert_matches)] #![feature(associated_type_defaults)] -#![feature(box_into_inner)] #![feature(box_patterns)] #![feature(default_field_values)] #![feature(error_reporter)] From f9931d198cb92b72a0a8f893c380fdf07ebb4800 Mon Sep 17 00:00:00 2001 From: binarycat Date: Mon, 26 May 2025 11:35:45 -0500 Subject: [PATCH 20/46] rustdoc: refactor Tooltip rendering logic --- src/librustdoc/html/highlight.rs | 64 +++++++++++--------------------- 1 file changed, 21 insertions(+), 43 deletions(-) diff --git a/src/librustdoc/html/highlight.rs b/src/librustdoc/html/highlight.rs index f9d355cc0386..b2feee36c939 100644 --- a/src/librustdoc/html/highlight.rs +++ b/src/librustdoc/html/highlight.rs @@ -81,51 +81,29 @@ fn write_header( ); if tooltip != Tooltip::None { - // variable for extending lifetimes of temporaries - let tmp; - write_str( - out, - format_args!( - "ⓘ", - match tooltip { - Tooltip::IgnoreAll => "This example is not tested", - Tooltip::IgnoreSome(platforms) => { - tmp = format!( - "This example is not tested on {}", - fmt::from_fn(|f| { - match platforms.len() { - 0 => unreachable!(), - 1 => f.write_str(&platforms[0]), - 2 => write!(f, "{} or {}", &platforms[0], &platforms[1]), - _ => { - for (i, plat) in platforms.iter().enumerate() { - match (platforms.len() - 2).cmp(&i) { - std::cmp::Ordering::Greater => { - write!(f, "{}, ", plat)? - } - std::cmp::Ordering::Equal => { - write!(f, "{}, or ", plat)? - } - std::cmp::Ordering::Less => f.write_str(&plat)?, - } - } - Ok(()) - } - } - }) - ); - &tmp + let tooltip = fmt::from_fn(|f| match &tooltip { + Tooltip::IgnoreAll => f.write_str("This example is not tested"), + Tooltip::IgnoreSome(platforms) => { + f.write_str("This example is not tested on ")?; + match &platforms[..] { + [] => unreachable!(), + [platform] => f.write_str(platform)?, + [first, second] => write!(f, "{first} or {second}")?, + [platforms @ .., last] => { + for platform in platforms { + write!(f, "{platform}, ")?; + } + write!(f, "or {last}")?; } - Tooltip::CompileFail => "This example deliberately fails to compile", - Tooltip::ShouldPanic => "This example panics", - Tooltip::Edition(edition) => { - tmp = format!("This example runs with edition {edition}"); - &tmp - } - Tooltip::None => unreachable!(), } - ), - ); + Ok(()) + } + Tooltip::CompileFail => f.write_str("This example deliberately fails to compile"), + Tooltip::ShouldPanic => f.write_str("This example panics"), + Tooltip::Edition(edition) => write!(f, "This example runs with edition {edition}"), + Tooltip::None => unreachable!(), + }); + write_str(out, format_args!("ⓘ")); } if let Some(extra) = extra_content { From 108c16eebd1d3de3641c9cdec48314596d01b1b8 Mon Sep 17 00:00:00 2001 From: Jeremy Drake Date: Mon, 26 May 2025 10:31:56 -0700 Subject: [PATCH 21/46] bootstrap: translate Windows paths in a way that works for both Cygwin and MSYS2 Cygwin defaults to rooting Windows paths in /cygdrive/X, while MSYS2 configures them to be /X. Regardless of configuration, drives are always accessible as /proc/cygdrive/X, so use that. --- src/bootstrap/src/core/build_steps/install.rs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/src/bootstrap/src/core/build_steps/install.rs b/src/bootstrap/src/core/build_steps/install.rs index 585adf9be160..5419540aa2e0 100644 --- a/src/bootstrap/src/core/build_steps/install.rs +++ b/src/bootstrap/src/core/build_steps/install.rs @@ -38,7 +38,9 @@ fn sanitize_sh(path: &Path, is_cygwin: bool) -> String { if ch.next() != Some('/') { return None; } - Some(format!("/{}/{}", drive, &s[drive.len_utf8() + 2..])) + // The prefix for Windows drives in Cygwin/MSYS2 is configurable, but + // /proc/cygdrive is available regardless of configuration since 1.7.33 + Some(format!("/proc/cygdrive/{}/{}", drive, &s[drive.len_utf8() + 2..])) } } From 6a8663ae2602f3fdaf49a8f116b8a78ea3325f65 Mon Sep 17 00:00:00 2001 From: Eric Huss Date: Mon, 26 May 2025 12:01:43 -0700 Subject: [PATCH 22/46] Update mdbook to 0.4.51 This fixes a silly regression introduced in 0.4.50 that broke the search hotkey (https://github.com/rust-lang/rust/pull/141457). Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0451 --- src/tools/rustbook/Cargo.lock | 4 ++-- src/tools/rustbook/Cargo.toml | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/tools/rustbook/Cargo.lock b/src/tools/rustbook/Cargo.lock index 5c862e954007..07c5106331bf 100644 --- a/src/tools/rustbook/Cargo.lock +++ b/src/tools/rustbook/Cargo.lock @@ -885,9 +885,9 @@ dependencies = [ [[package]] name = "mdbook" -version = "0.4.50" +version = "0.4.51" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "f72bc08f096e1fb15cfc382babe218317c2897d2040f967c4db40d156ca28e21" +checksum = "a87e65420ab45ca9c1b8cdf698f95b710cc826d373fa550f0f7fad82beac9328" dependencies = [ "ammonia", "anyhow", diff --git a/src/tools/rustbook/Cargo.toml b/src/tools/rustbook/Cargo.toml index ee2ada5aa2b3..69c0cfaf5c99 100644 --- a/src/tools/rustbook/Cargo.toml +++ b/src/tools/rustbook/Cargo.toml @@ -15,6 +15,6 @@ mdbook-i18n-helpers = "0.3.3" mdbook-spec = { path = "../../doc/reference/mdbook-spec" } [dependencies.mdbook] -version = "0.4.50" +version = "0.4.51" default-features = false features = ["search"] From e33fe611f548aec16722657bf331ad75bf01617f Mon Sep 17 00:00:00 2001 From: Urgau Date: Sat, 10 May 2025 14:24:39 +0200 Subject: [PATCH 23/46] Add custom trait for emitting lint within `cfg_matches` --- .../rustc_attr_parsing/src/attributes/cfg.rs | 27 ++++++++++++++----- 1 file changed, 21 insertions(+), 6 deletions(-) diff --git a/compiler/rustc_attr_parsing/src/attributes/cfg.rs b/compiler/rustc_attr_parsing/src/attributes/cfg.rs index 528f56dfac7d..f4d23012af73 100644 --- a/compiler/rustc_attr_parsing/src/attributes/cfg.rs +++ b/compiler/rustc_attr_parsing/src/attributes/cfg.rs @@ -4,14 +4,29 @@ use rustc_attr_data_structures::RustcVersion; use rustc_feature::{Features, GatedCfg, find_gated_cfg}; use rustc_session::Session; use rustc_session::config::ExpectedValues; -use rustc_session::lint::BuiltinLintDiag; use rustc_session::lint::builtin::UNEXPECTED_CFGS; +use rustc_session::lint::{BuiltinLintDiag, Lint}; use rustc_session::parse::feature_err; use rustc_span::{Span, Symbol, sym}; use crate::session_diagnostics::{self, UnsupportedLiteralReason}; use crate::{fluent_generated, parse_version}; +/// Emitter of a builtin lint from `cfg_matches`. +/// +/// Used to support emiting a lint (currently on check-cfg), either: +/// - as an early buffered lint (in `rustc`) +/// - or has a "normal" lint from HIR (in `rustdoc`) +pub trait CfgMatchesLintEmitter { + fn emit_span_lint(&self, sess: &Session, lint: &'static Lint, sp: Span, diag: BuiltinLintDiag); +} + +impl CfgMatchesLintEmitter for NodeId { + fn emit_span_lint(&self, sess: &Session, lint: &'static Lint, sp: Span, diag: BuiltinLintDiag) { + sess.psess.buffer_lint(lint, sp, *self, diag); + } +} + #[derive(Clone, Debug)] pub struct Condition { pub name: Symbol, @@ -25,17 +40,17 @@ pub struct Condition { pub fn cfg_matches( cfg: &MetaItemInner, sess: &Session, - lint_node_id: NodeId, + lint_emitter: impl CfgMatchesLintEmitter, features: Option<&Features>, ) -> bool { eval_condition(cfg, sess, features, &mut |cfg| { try_gate_cfg(cfg.name, cfg.span, sess, features); match sess.psess.check_config.expecteds.get(&cfg.name) { Some(ExpectedValues::Some(values)) if !values.contains(&cfg.value) => { - sess.psess.buffer_lint( + lint_emitter.emit_span_lint( + sess, UNEXPECTED_CFGS, cfg.span, - lint_node_id, BuiltinLintDiag::UnexpectedCfgValue( (cfg.name, cfg.name_span), cfg.value.map(|v| (v, cfg.value_span.unwrap())), @@ -43,10 +58,10 @@ pub fn cfg_matches( ); } None if sess.psess.check_config.exhaustive_names => { - sess.psess.buffer_lint( + lint_emitter.emit_span_lint( + sess, UNEXPECTED_CFGS, cfg.span, - lint_node_id, BuiltinLintDiag::UnexpectedCfgName( (cfg.name, cfg.name_span), cfg.value.map(|v| (v, cfg.value_span.unwrap())), From 93f3db25c0e554d3143bed945e2671a14aa5288d Mon Sep 17 00:00:00 2001 From: Urgau Date: Sat, 10 May 2025 15:12:41 +0200 Subject: [PATCH 24/46] Expose `rustc_lint::decorate_builtin_lint` for use in `rustdoc` --- compiler/rustc_lint/src/early.rs | 4 ++-- compiler/rustc_lint/src/early/diagnostics.rs | 2 +- compiler/rustc_lint/src/lib.rs | 1 + 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/compiler/rustc_lint/src/early.rs b/compiler/rustc_lint/src/early.rs index f9601fa5ef1d..2607ec58f4d9 100644 --- a/compiler/rustc_lint/src/early.rs +++ b/compiler/rustc_lint/src/early.rs @@ -18,7 +18,7 @@ use tracing::debug; use crate::context::{EarlyContext, LintContext, LintStore}; use crate::passes::{EarlyLintPass, EarlyLintPassObject}; -mod diagnostics; +pub(super) mod diagnostics; macro_rules! lint_callback { ($cx:expr, $f:ident, $($args:expr),*) => ({ $cx.pass.$f(&$cx.context, $($args),*); @@ -40,7 +40,7 @@ impl<'ecx, 'tcx, T: EarlyLintPass> EarlyContextAndPass<'ecx, 'tcx, T> { for early_lint in self.context.buffered.take(id) { let BufferedEarlyLint { span, node_id: _, lint_id, diagnostic } = early_lint; self.context.opt_span_lint(lint_id.lint, span, |diag| { - diagnostics::decorate_lint(self.context.sess(), self.tcx, diagnostic, diag); + diagnostics::decorate_builtin_lint(self.context.sess(), self.tcx, diagnostic, diag); }); } } diff --git a/compiler/rustc_lint/src/early/diagnostics.rs b/compiler/rustc_lint/src/early/diagnostics.rs index 40ca9e05d95d..8987b286cf72 100644 --- a/compiler/rustc_lint/src/early/diagnostics.rs +++ b/compiler/rustc_lint/src/early/diagnostics.rs @@ -18,7 +18,7 @@ use crate::lints::{self, ElidedNamedLifetime}; mod check_cfg; -pub(super) fn decorate_lint( +pub fn decorate_builtin_lint( sess: &Session, tcx: Option>, diagnostic: BuiltinLintDiag, diff --git a/compiler/rustc_lint/src/lib.rs b/compiler/rustc_lint/src/lib.rs index 4ff586a79a6e..0de4c43a6591 100644 --- a/compiler/rustc_lint/src/lib.rs +++ b/compiler/rustc_lint/src/lib.rs @@ -126,6 +126,7 @@ use unused::*; #[rustfmt::skip] pub use builtin::{MissingDoc, SoftLints}; pub use context::{CheckLintNameResult, EarlyContext, LateContext, LintContext, LintStore}; +pub use early::diagnostics::decorate_builtin_lint; pub use early::{EarlyCheckNode, check_ast_node}; pub use late::{check_crate, late_lint_mod, unerased_lint_store}; pub use levels::LintLevelsBuilder; From 3fd0265fbb236c8309f2f913cf9946e64818f643 Mon Sep 17 00:00:00 2001 From: Urgau Date: Sat, 10 May 2025 15:15:54 +0200 Subject: [PATCH 25/46] rustdoc: use custom `CfgMatchesLintEmitter` to make check-cfg work --- src/librustdoc/clean/inline.rs | 4 +- src/librustdoc/clean/mod.rs | 1 + src/librustdoc/clean/types.rs | 39 +++++++++++++++++-- src/librustdoc/doctest/rust.rs | 9 +++-- .../doc-cfg-check-cfg.cfg_empty.stderr | 12 ++++++ tests/rustdoc-ui/doc-cfg-check-cfg.rs | 19 +++++---- tests/rustdoc-ui/doc-cfg.rs | 4 +- tests/rustdoc-ui/doc-cfg.stderr | 26 +++++++++++-- 8 files changed, 95 insertions(+), 19 deletions(-) create mode 100644 tests/rustdoc-ui/doc-cfg-check-cfg.cfg_empty.stderr diff --git a/src/librustdoc/clean/inline.rs b/src/librustdoc/clean/inline.rs index 55a116a018a8..f25cf6068129 100644 --- a/src/librustdoc/clean/inline.rs +++ b/src/librustdoc/clean/inline.rs @@ -409,12 +409,12 @@ pub(crate) fn merge_attrs( } else { Attributes::from_hir(&both) }, - extract_cfg_from_attrs(both.iter(), cx.tcx, &cx.cache.hidden_cfg), + extract_cfg_from_attrs(both.iter(), cx.tcx, None, &cx.cache.hidden_cfg), ) } else { ( Attributes::from_hir(old_attrs), - extract_cfg_from_attrs(old_attrs.iter(), cx.tcx, &cx.cache.hidden_cfg), + extract_cfg_from_attrs(old_attrs.iter(), cx.tcx, None, &cx.cache.hidden_cfg), ) } } diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 28dfa01534ea..bacc7b50018f 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -210,6 +210,7 @@ fn generate_item_with_correct_attrs( Cow::Owned(attr) => attr, }), cx.tcx, + def_id.as_local().map(|did| cx.tcx.local_def_id_to_hir_id(did)), &cx.cache.hidden_cfg, ); let attrs = Attributes::from_hir_iter(attrs.iter().map(|(attr, did)| (&**attr, *did)), false); diff --git a/src/librustdoc/clean/types.rs b/src/librustdoc/clean/types.rs index bb3469867d51..0f92aab5abe5 100644 --- a/src/librustdoc/clean/types.rs +++ b/src/librustdoc/clean/types.rs @@ -12,8 +12,9 @@ use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_hir::def::{CtorKind, DefKind, Res}; use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE, LocalDefId}; use rustc_hir::lang_items::LangItem; -use rustc_hir::{BodyId, Mutability}; +use rustc_hir::{BodyId, HirId, Mutability}; use rustc_index::IndexVec; +use rustc_lint_defs::{BuiltinLintDiag, Lint}; use rustc_metadata::rendered_const; use rustc_middle::span_bug; use rustc_middle::ty::fast_reject::SimplifiedType; @@ -477,7 +478,12 @@ impl Item { name, kind, Attributes::from_hir(hir_attrs), - extract_cfg_from_attrs(hir_attrs.iter(), cx.tcx, &cx.cache.hidden_cfg), + extract_cfg_from_attrs( + hir_attrs.iter(), + cx.tcx, + def_id.as_local().map(|did| cx.tcx.local_def_id_to_hir_id(did)), + &cx.cache.hidden_cfg, + ), ) } @@ -1033,6 +1039,7 @@ pub(crate) fn hir_attr_lists<'a, I: IntoIterator>( pub(crate) fn extract_cfg_from_attrs<'a, I: Iterator + Clone>( attrs: I, tcx: TyCtxt<'_>, + hir_id: Option, hidden_cfg: &FxHashSet, ) -> Option> { let doc_cfg_active = tcx.features().doc_cfg(); @@ -1056,6 +1063,32 @@ pub(crate) fn extract_cfg_from_attrs<'a, I: Iterator .peekable(); if doc_cfg.peek().is_some() && doc_cfg_active { let sess = tcx.sess; + + struct RustdocCfgMatchesLintEmitter<'a>(TyCtxt<'a>, Option); + + impl<'a> rustc_attr_parsing::CfgMatchesLintEmitter for RustdocCfgMatchesLintEmitter<'a> { + fn emit_span_lint( + &self, + sess: &Session, + lint: &'static Lint, + sp: rustc_span::Span, + builtin_diag: BuiltinLintDiag, + ) { + if let Some(hir_id) = self.1 { + self.0.node_span_lint(lint, hir_id, sp, |diag| { + rustc_lint::decorate_builtin_lint( + sess, + Some(self.0), + builtin_diag, + diag, + ) + }); + } else { + // No HIR id. Probably in another crate. Don't lint. + } + } + } + doc_cfg.fold(Cfg::True, |mut cfg, item| { if let Some(cfg_mi) = item.meta_item().and_then(|item| rustc_expand::config::parse_cfg(item, sess)) @@ -1064,7 +1097,7 @@ pub(crate) fn extract_cfg_from_attrs<'a, I: Iterator rustc_attr_parsing::cfg_matches( cfg_mi, tcx.sess, - rustc_ast::CRATE_NODE_ID, + RustdocCfgMatchesLintEmitter(tcx, hir_id), Some(tcx.features()), ); match Cfg::parse(cfg_mi) { diff --git a/src/librustdoc/doctest/rust.rs b/src/librustdoc/doctest/rust.rs index f9d2aa3d3b4b..a58ab3dd0fc9 100644 --- a/src/librustdoc/doctest/rust.rs +++ b/src/librustdoc/doctest/rust.rs @@ -116,9 +116,12 @@ impl HirCollector<'_> { nested: F, ) { let ast_attrs = self.tcx.hir_attrs(self.tcx.local_def_id_to_hir_id(def_id)); - if let Some(ref cfg) = - extract_cfg_from_attrs(ast_attrs.iter(), self.tcx, &FxHashSet::default()) - && !cfg.matches(&self.tcx.sess.psess) + if let Some(ref cfg) = extract_cfg_from_attrs( + ast_attrs.iter(), + self.tcx, + Some(self.tcx.local_def_id_to_hir_id(def_id)), + &FxHashSet::default(), + ) && !cfg.matches(&self.tcx.sess.psess) { return; } diff --git a/tests/rustdoc-ui/doc-cfg-check-cfg.cfg_empty.stderr b/tests/rustdoc-ui/doc-cfg-check-cfg.cfg_empty.stderr new file mode 100644 index 000000000000..7e6f8dec5ed0 --- /dev/null +++ b/tests/rustdoc-ui/doc-cfg-check-cfg.cfg_empty.stderr @@ -0,0 +1,12 @@ +warning: unexpected `cfg` condition name: `foo` + --> $DIR/doc-cfg-check-cfg.rs:13:11 + | +LL | #[doc(cfg(foo))] + | ^^^ + | + = help: to expect this configuration use `--check-cfg=cfg(foo)` + = note: see for more information about checking conditional configuration + = note: `#[warn(unexpected_cfgs)]` on by default + +warning: 1 warning emitted + diff --git a/tests/rustdoc-ui/doc-cfg-check-cfg.rs b/tests/rustdoc-ui/doc-cfg-check-cfg.rs index e3420dc07897..6bb520b0726d 100644 --- a/tests/rustdoc-ui/doc-cfg-check-cfg.rs +++ b/tests/rustdoc-ui/doc-cfg-check-cfg.rs @@ -1,16 +1,21 @@ // Ensure that `doc(cfg())` respects `check-cfg` // Currently not properly working -#![feature(doc_cfg)] -#![deny(unexpected_cfgs)] -//@revisions: no_check cfg_empty cfg_foo +//@ check-pass +//@ no-auto-check-cfg + +//@ revisions: no_check cfg_empty cfg_foo //@[cfg_empty] compile-flags: --check-cfg cfg() //@[cfg_foo] compile-flags: --check-cfg cfg(foo) -//@[no_check] check-pass -//@[cfg_empty] check-pass -//@[cfg_empty] known-bug: #138358 -//@[cfg_foo] check-pass +#![feature(doc_cfg)] #[doc(cfg(foo))] +//[cfg_empty]~^ WARN unexpected `cfg` condition name: `foo` pub fn foo() {} + +pub mod module { + #[allow(unexpected_cfgs)] + #[doc(cfg(bar))] + pub fn bar() {} +} diff --git a/tests/rustdoc-ui/doc-cfg.rs b/tests/rustdoc-ui/doc-cfg.rs index 354d76bc3c43..14943bbc3418 100644 --- a/tests/rustdoc-ui/doc-cfg.rs +++ b/tests/rustdoc-ui/doc-cfg.rs @@ -3,7 +3,9 @@ #[doc(cfg(), cfg(foo, bar))] //~^ ERROR //~^^ ERROR -#[doc(cfg(foo), cfg(bar))] // ok! +#[doc(cfg(foo), cfg(bar))] +//~^ WARN unexpected `cfg` condition name: `foo` +//~^^ WARN unexpected `cfg` condition name: `bar` #[doc(cfg())] //~ ERROR #[doc(cfg(foo, bar))] //~ ERROR pub fn foo() {} diff --git a/tests/rustdoc-ui/doc-cfg.stderr b/tests/rustdoc-ui/doc-cfg.stderr index 14b7b17e04d3..48c8e79ce962 100644 --- a/tests/rustdoc-ui/doc-cfg.stderr +++ b/tests/rustdoc-ui/doc-cfg.stderr @@ -10,17 +10,37 @@ error: multiple `cfg` predicates are specified LL | #[doc(cfg(), cfg(foo, bar))] | ^^^ +warning: unexpected `cfg` condition name: `foo` + --> $DIR/doc-cfg.rs:6:11 + | +LL | #[doc(cfg(foo), cfg(bar))] + | ^^^ + | + = help: expected names are: `FALSE` and `test` and 31 more + = help: to expect this configuration use `--check-cfg=cfg(foo)` + = note: see for more information about checking conditional configuration + = note: `#[warn(unexpected_cfgs)]` on by default + +warning: unexpected `cfg` condition name: `bar` + --> $DIR/doc-cfg.rs:6:21 + | +LL | #[doc(cfg(foo), cfg(bar))] + | ^^^ + | + = help: to expect this configuration use `--check-cfg=cfg(bar)` + = note: see for more information about checking conditional configuration + error: `cfg` predicate is not specified - --> $DIR/doc-cfg.rs:7:7 + --> $DIR/doc-cfg.rs:9:7 | LL | #[doc(cfg())] | ^^^^^ help: expected syntax is: `cfg(/* predicate */)` error: multiple `cfg` predicates are specified - --> $DIR/doc-cfg.rs:8:16 + --> $DIR/doc-cfg.rs:10:16 | LL | #[doc(cfg(foo, bar))] | ^^^ -error: aborting due to 4 previous errors +error: aborting due to 4 previous errors; 2 warnings emitted From c8ed2a74236816072c8361994dd92d21a87cc36c Mon Sep 17 00:00:00 2001 From: Santiago Pastorino Date: Mon, 26 May 2025 18:13:54 -0300 Subject: [PATCH 26/46] Remove spastorino from vacations --- triagebot.toml | 1 - 1 file changed, 1 deletion(-) diff --git a/triagebot.toml b/triagebot.toml index 9d7a0ef5aec0..308e8db34384 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -1170,7 +1170,6 @@ contributing_url = "https://rustc-dev-guide.rust-lang.org/getting-started.html" users_on_vacation = [ "fmease", "jyn514", - "spastorino", ] [[assign.warn_non_default_branch.exceptions]] From 7fe82632854ce64dd98044163b0e0e61be51fb04 Mon Sep 17 00:00:00 2001 From: Folkert de Vries Date: Tue, 27 May 2025 01:18:54 +0200 Subject: [PATCH 27/46] use custom types to clarify arguments to `emit_ptr_va_arg` --- compiler/rustc_codegen_llvm/src/va_arg.rs | 83 +++++++++++++++++------ 1 file changed, 61 insertions(+), 22 deletions(-) diff --git a/compiler/rustc_codegen_llvm/src/va_arg.rs b/compiler/rustc_codegen_llvm/src/va_arg.rs index c216f0f4a09d..b91b6efed452 100644 --- a/compiler/rustc_codegen_llvm/src/va_arg.rs +++ b/compiler/rustc_codegen_llvm/src/va_arg.rs @@ -63,14 +63,33 @@ fn emit_direct_ptr_va_arg<'ll, 'tcx>( } } +enum PassMode { + Direct, + Indirect, +} + +enum SlotSize { + Bytes8 = 8, + Bytes4 = 4, +} + +enum AllowHigherAlign { + No, + Yes, +} + fn emit_ptr_va_arg<'ll, 'tcx>( bx: &mut Builder<'_, 'll, 'tcx>, list: OperandRef<'tcx, &'ll Value>, target_ty: Ty<'tcx>, - indirect: bool, - slot_size: Align, - allow_higher_align: bool, + pass_mode: PassMode, + slot_size: SlotSize, + allow_higher_align: AllowHigherAlign, ) -> &'ll Value { + let indirect = matches!(pass_mode, PassMode::Indirect); + let allow_higher_align = matches!(allow_higher_align, AllowHigherAlign::Yes); + let slot_size = Align::from_bytes(slot_size as u64).unwrap(); + let layout = bx.cx.layout_of(target_ty); let (llty, size, align) = if indirect { ( @@ -179,8 +198,14 @@ fn emit_aapcs_va_arg<'ll, 'tcx>( // On Stack block bx.switch_to_block(on_stack); - let stack_value = - emit_ptr_va_arg(bx, list, target_ty, false, Align::from_bytes(8).unwrap(), true); + let stack_value = emit_ptr_va_arg( + bx, + list, + target_ty, + PassMode::Direct, + SlotSize::Bytes8, + AllowHigherAlign::Yes, + ); bx.br(end); bx.switch_to_block(end); @@ -386,29 +411,43 @@ pub(super) fn emit_va_arg<'ll, 'tcx>( // Determine the va_arg implementation to use. The LLVM va_arg instruction // is lacking in some instances, so we should only use it as a fallback. let target = &bx.cx.tcx.sess.target; - let arch = &bx.cx.tcx.sess.target.arch; - match &**arch { - // Windows x86 - "x86" if target.is_like_windows => { - emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), false) - } - // Generic x86 - "x86" => emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(4).unwrap(), true), - // Windows AArch64 - "aarch64" | "arm64ec" if target.is_like_windows => { - emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(8).unwrap(), false) - } - // macOS / iOS AArch64 - "aarch64" if target.is_like_darwin => { - emit_ptr_va_arg(bx, addr, target_ty, false, Align::from_bytes(8).unwrap(), true) + + match &*target.arch { + "x86" => emit_ptr_va_arg( + bx, + addr, + target_ty, + PassMode::Direct, + SlotSize::Bytes4, + if target.is_like_windows { AllowHigherAlign::No } else { AllowHigherAlign::Yes }, + ), + "aarch64" | "arm64ec" if target.is_like_windows || target.is_like_darwin => { + emit_ptr_va_arg( + bx, + addr, + target_ty, + PassMode::Direct, + SlotSize::Bytes8, + if target.is_like_windows { AllowHigherAlign::No } else { AllowHigherAlign::Yes }, + ) } "aarch64" => emit_aapcs_va_arg(bx, addr, target_ty), "s390x" => emit_s390x_va_arg(bx, addr, target_ty), // Windows x86_64 "x86_64" if target.is_like_windows => { let target_ty_size = bx.cx.size_of(target_ty).bytes(); - let indirect: bool = target_ty_size > 8 || !target_ty_size.is_power_of_two(); - emit_ptr_va_arg(bx, addr, target_ty, indirect, Align::from_bytes(8).unwrap(), false) + emit_ptr_va_arg( + bx, + addr, + target_ty, + if target_ty_size > 8 || !target_ty_size.is_power_of_two() { + PassMode::Indirect + } else { + PassMode::Direct + }, + SlotSize::Bytes8, + AllowHigherAlign::No, + ) } "xtensa" => emit_xtensa_va_arg(bx, addr, target_ty), // For all other architecture/OS combinations fall back to using From 6d0e04d6f384d8ac8d2eb00ea90d25ac6dcff914 Mon Sep 17 00:00:00 2001 From: Ben Kimock Date: Mon, 26 May 2025 22:12:02 -0400 Subject: [PATCH 28/46] Wrap NonZero::new_unchecked call in the print_type_sizes test in a const --- tests/ui/print_type_sizes/niche-filling.rs | 9 +++++- .../ui/print_type_sizes/niche-filling.stdout | 29 ------------------- 2 files changed, 8 insertions(+), 30 deletions(-) diff --git a/tests/ui/print_type_sizes/niche-filling.rs b/tests/ui/print_type_sizes/niche-filling.rs index 36739e3fc04c..719bc2a07dc9 100644 --- a/tests/ui/print_type_sizes/niche-filling.rs +++ b/tests/ui/print_type_sizes/niche-filling.rs @@ -55,7 +55,14 @@ pub struct NestedNonZero { impl Default for NestedNonZero { fn default() -> Self { - NestedNonZero { pre: 0, val: unsafe { NonZero::new_unchecked(1) }, post: 0 } + // Ideally we'd call NonZero::new_unchecked, but this test is supposed + // to be target-independent and NonZero::new_unchecked is #[track_caller] + // (see #129658) so mentioning that function pulls in std::panic::Location + // which contains a &str, whose layout is target-dependent. + const ONE: NonZero = const { + unsafe { std::mem::transmute(1u32) } + }; + NestedNonZero { pre: 0, val: ONE, post: 0 } } } diff --git a/tests/ui/print_type_sizes/niche-filling.stdout b/tests/ui/print_type_sizes/niche-filling.stdout index 432ab960a502..3342f68dd70b 100644 --- a/tests/ui/print_type_sizes/niche-filling.stdout +++ b/tests/ui/print_type_sizes/niche-filling.stdout @@ -1,25 +1,3 @@ -print-type-size type: `std::fmt::Arguments<'_>`: 48 bytes, alignment: 8 bytes -print-type-size field `.pieces`: 16 bytes -print-type-size field `.args`: 16 bytes -print-type-size field `.fmt`: 16 bytes -print-type-size type: `std::panic::Location<'_>`: 24 bytes, alignment: 8 bytes -print-type-size field `.file`: 16 bytes -print-type-size field `.line`: 4 bytes -print-type-size field `.col`: 4 bytes -print-type-size type: `core::fmt::rt::Argument<'_>`: 16 bytes, alignment: 8 bytes -print-type-size field `.ty`: 16 bytes -print-type-size type: `core::fmt::rt::ArgumentType<'_>`: 16 bytes, alignment: 8 bytes -print-type-size variant `Placeholder`: 16 bytes -print-type-size field `.value`: 8 bytes -print-type-size field `.formatter`: 8 bytes -print-type-size field `._lifetime`: 0 bytes -print-type-size variant `Count`: 10 bytes -print-type-size padding: 8 bytes -print-type-size field `.0`: 2 bytes, alignment: 2 bytes -print-type-size type: `std::option::Option<&[core::fmt::rt::Placeholder]>`: 16 bytes, alignment: 8 bytes -print-type-size variant `Some`: 16 bytes -print-type-size field `.0`: 16 bytes -print-type-size variant `None`: 0 bytes print-type-size type: `IndirectNonZero`: 12 bytes, alignment: 4 bytes print-type-size field `.nested`: 8 bytes print-type-size field `.post`: 2 bytes @@ -56,8 +34,6 @@ print-type-size field `.val`: 4 bytes print-type-size field `.post`: 2 bytes print-type-size field `.pre`: 1 bytes print-type-size end padding: 1 bytes -print-type-size type: `std::ptr::NonNull<()>`: 8 bytes, alignment: 8 bytes -print-type-size field `.pointer`: 8 bytes print-type-size type: `Enum4<(), char, (), ()>`: 4 bytes, alignment: 4 bytes print-type-size variant `Two`: 4 bytes print-type-size field `.0`: 4 bytes @@ -96,10 +72,6 @@ print-type-size type: `core::num::niche_types::NonZeroU32Inner`: 4 bytes, alignm print-type-size field `.0`: 4 bytes print-type-size type: `std::num::NonZero`: 4 bytes, alignment: 4 bytes print-type-size field `.0`: 4 bytes -print-type-size type: `std::option::Option>`: 4 bytes, alignment: 4 bytes -print-type-size variant `Some`: 4 bytes -print-type-size field `.0`: 4 bytes -print-type-size variant `None`: 0 bytes print-type-size type: `Enum4<(), (), (), MyOption>`: 2 bytes, alignment: 1 bytes print-type-size variant `Four`: 2 bytes print-type-size field `.0`: 2 bytes @@ -140,4 +112,3 @@ print-type-size discriminant: 1 bytes print-type-size variant `Less`: 0 bytes print-type-size variant `Equal`: 0 bytes print-type-size variant `Greater`: 0 bytes -print-type-size type: `std::marker::PhantomData<&()>`: 0 bytes, alignment: 1 bytes From 7fdf35ed1cf7e374f6822ba980c48c77ba7fa9de Mon Sep 17 00:00:00 2001 From: Deadbeef Date: Tue, 27 May 2025 14:24:18 +0800 Subject: [PATCH 29/46] remove `visit_mt` from `ast::mut_visit` doesn't look like anyone is using it. --- compiler/rustc_ast/src/mut_visit.rs | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 6770fd5a4aae..0006886fddfc 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -306,10 +306,6 @@ pub trait MutVisitor: Sized { walk_precise_capturing_arg(self, arg); } - fn visit_mt(&mut self, mt: &mut MutTy) { - walk_mt(self, mt); - } - fn visit_expr_field(&mut self, f: &mut ExprField) { walk_expr_field(self, f); } @@ -535,10 +531,10 @@ pub fn walk_ty(vis: &mut T, ty: &mut P) { TyKind::Infer | TyKind::ImplicitSelf | TyKind::Dummy | TyKind::Never | TyKind::CVarArgs => { } TyKind::Slice(ty) => vis.visit_ty(ty), - TyKind::Ptr(mt) => vis.visit_mt(mt), - TyKind::Ref(lt, mt) | TyKind::PinnedRef(lt, mt) => { + TyKind::Ptr(MutTy { ty, mutbl: _ }) => vis.visit_ty(ty), + TyKind::Ref(lt, MutTy { ty, mutbl: _ }) | TyKind::PinnedRef(lt, MutTy { ty, mutbl: _ }) => { visit_opt(lt, |lt| vis.visit_lifetime(lt)); - vis.visit_mt(mt); + vis.visit_ty(ty); } TyKind::BareFn(bft) => { let BareFnTy { safety, ext: _, generic_params, decl, decl_span } = bft.deref_mut(); @@ -1019,10 +1015,6 @@ pub fn walk_flat_map_expr_field( smallvec![f] } -fn walk_mt(vis: &mut T, MutTy { ty, mutbl: _ }: &mut MutTy) { - vis.visit_ty(ty); -} - pub fn walk_block(vis: &mut T, block: &mut P) { let Block { id, stmts, rules: _, span, tokens: _ } = block.deref_mut(); vis.visit_id(id); From 7fae5efa4d7ff80a2755ecb878692eb79b40fb04 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Tue, 27 May 2025 08:44:51 +0200 Subject: [PATCH 30/46] Fix CI for unrolled builds on the `try-perf` branch That branch is essentially the same as the `try` branch, it also needs S3 permissions. Long term, we should move rollup unrolling from rustc-perf to bors, so that we can have only a single try branch. --- .github/workflows/ci.yml | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml index 566ae2235001..12da1365b2b3 100644 --- a/.github/workflows/ci.yml +++ b/.github/workflows/ci.yml @@ -79,9 +79,8 @@ jobs: # This also ensures that PR CI (which doesn't get write access to S3) works, as it cannot # access the environment. # - # We only enable the environment for the rust-lang/rust repository, so that rust-lang-ci/rust - # CI works until we migrate off it (since that repository doesn't contain the environment). - environment: ${{ ((github.repository == 'rust-lang/rust' && (github.ref == 'refs/heads/try' || github.ref == 'refs/heads/auto')) && 'bors') || '' }} + # We only enable the environment for the rust-lang/rust repository, so that CI works on forks. + environment: ${{ ((github.repository == 'rust-lang/rust' && (github.ref == 'refs/heads/try' || github.ref == 'refs/heads/try-perf' || github.ref == 'refs/heads/auto')) && 'bors') || '' }} env: CI_JOB_NAME: ${{ matrix.name }} CI_JOB_DOC_URL: ${{ matrix.doc_url }} @@ -234,8 +233,8 @@ jobs: fi exit ${STATUS} env: - AWS_ACCESS_KEY_ID: ${{ (github.repository == 'rust-lang/rust' && secrets.CACHES_AWS_ACCESS_KEY_ID) || env.CACHES_AWS_ACCESS_KEY_ID }} - AWS_SECRET_ACCESS_KEY: ${{ (github.repository == 'rust-lang/rust' && secrets.CACHES_AWS_SECRET_ACCESS_KEY) || secrets[format('AWS_SECRET_ACCESS_KEY_{0}', env.CACHES_AWS_ACCESS_KEY_ID)] }} + AWS_ACCESS_KEY_ID: ${{ secrets.CACHES_AWS_ACCESS_KEY_ID }} + AWS_SECRET_ACCESS_KEY: ${{ secrets.CACHES_AWS_SECRET_ACCESS_KEY }} - name: create github artifacts run: src/ci/scripts/create-doc-artifacts.sh @@ -257,8 +256,8 @@ jobs: - name: upload artifacts to S3 run: src/ci/scripts/upload-artifacts.sh env: - AWS_ACCESS_KEY_ID: ${{ (github.repository == 'rust-lang/rust' && secrets.ARTIFACTS_AWS_ACCESS_KEY_ID) || env.ARTIFACTS_AWS_ACCESS_KEY_ID }} - AWS_SECRET_ACCESS_KEY: ${{ (github.repository == 'rust-lang/rust' && secrets.ARTIFACTS_AWS_SECRET_ACCESS_KEY) || secrets[format('AWS_SECRET_ACCESS_KEY_{0}', env.ARTIFACTS_AWS_ACCESS_KEY_ID)] }} + AWS_ACCESS_KEY_ID: ${{ secrets.ARTIFACTS_AWS_ACCESS_KEY_ID }} + AWS_SECRET_ACCESS_KEY: ${{ secrets.ARTIFACTS_AWS_SECRET_ACCESS_KEY }} # Adding a condition on DEPLOY=1 or DEPLOY_ALT=1 is not needed as all deploy # builders *should* have the AWS credentials available. Still, explicitly # adding the condition is helpful as this way CI will not silently skip From e0d4cf38f49991c7c39ad563e32ddf840e8e4cd9 Mon Sep 17 00:00:00 2001 From: Deadbeef Date: Tue, 27 May 2025 14:54:02 +0800 Subject: [PATCH 31/46] further dedup `WalkItemKind` for `mut_visit` and `visit` also some drive-by fixes. --- compiler/rustc_ast/src/mut_visit.rs | 127 ------------ compiler/rustc_ast/src/visit.rs | 302 +++++++++++++--------------- 2 files changed, 145 insertions(+), 284 deletions(-) diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 6770fd5a4aae..27a1eb17083e 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -1041,78 +1041,6 @@ pub fn walk_item_kind( kind.walk(span, id, visibility, ctxt, vis) } -impl WalkItemKind for AssocItemKind { - type Ctxt = AssocCtxt; - fn walk( - &mut self, - span: Span, - id: NodeId, - visibility: &mut Visibility, - ctxt: Self::Ctxt, - visitor: &mut V, - ) { - match self { - AssocItemKind::Const(item) => { - walk_const_item(visitor, item); - } - AssocItemKind::Fn(func) => { - visitor.visit_fn(FnKind::Fn(FnCtxt::Assoc(ctxt), visibility, &mut *func), span, id); - } - AssocItemKind::Type(box TyAlias { - defaultness, - ident, - generics, - where_clauses, - bounds, - ty, - }) => { - visit_defaultness(visitor, defaultness); - visitor.visit_ident(ident); - visitor.visit_generics(generics); - visit_bounds(visitor, bounds, BoundKind::Bound); - visit_opt(ty, |ty| visitor.visit_ty(ty)); - walk_ty_alias_where_clauses(visitor, where_clauses); - } - AssocItemKind::MacCall(mac) => visitor.visit_mac_call(mac), - AssocItemKind::Delegation(box Delegation { - id, - qself, - path, - ident, - rename, - body, - from_glob: _, - }) => { - visitor.visit_id(id); - visitor.visit_qself(qself); - visitor.visit_path(path); - visitor.visit_ident(ident); - if let Some(rename) = rename { - visitor.visit_ident(rename); - } - if let Some(body) = body { - visitor.visit_block(body); - } - } - AssocItemKind::DelegationMac(box DelegationMac { qself, prefix, suffixes, body }) => { - visitor.visit_qself(qself); - visitor.visit_path(prefix); - if let Some(suffixes) = suffixes { - for (ident, rename) in suffixes { - visitor.visit_ident(ident); - if let Some(rename) = rename { - visitor.visit_ident(rename); - } - } - } - if let Some(body) = body { - visitor.visit_block(body); - } - } - } - } -} - pub fn walk_crate(vis: &mut T, krate: &mut Crate) { let Crate { attrs, items, spans, id, is_placeholder: _ } = krate; vis.visit_id(id); @@ -1123,14 +1051,6 @@ pub fn walk_crate(vis: &mut T, krate: &mut Crate) { vis.visit_span(inject_use_span); } -pub fn walk_item(visitor: &mut impl MutVisitor, item: &mut P>>) { - walk_item_ctxt(visitor, item, ()) -} - -pub fn walk_assoc_item(visitor: &mut impl MutVisitor, item: &mut P, ctxt: AssocCtxt) { - walk_item_ctxt(visitor, item, ctxt) -} - pub fn walk_flat_map_item(vis: &mut impl MutVisitor, mut item: P) -> SmallVec<[P; 1]> { vis.visit_item(&mut item); smallvec![item] @@ -1153,53 +1073,6 @@ pub fn walk_flat_map_assoc_item( smallvec![item] } -impl WalkItemKind for ForeignItemKind { - type Ctxt = (); - fn walk( - &mut self, - span: Span, - id: NodeId, - visibility: &mut Visibility, - _ctxt: Self::Ctxt, - visitor: &mut V, - ) { - match self { - ForeignItemKind::Static(box StaticItem { - ident, - ty, - mutability: _, - expr, - safety: _, - define_opaque, - }) => { - visitor.visit_ident(ident); - visitor.visit_ty(ty); - visit_opt(expr, |expr| visitor.visit_expr(expr)); - walk_define_opaques(visitor, define_opaque); - } - ForeignItemKind::Fn(func) => { - visitor.visit_fn(FnKind::Fn(FnCtxt::Foreign, visibility, &mut *func), span, id); - } - ForeignItemKind::TyAlias(box TyAlias { - defaultness, - ident, - generics, - where_clauses, - bounds, - ty, - }) => { - visit_defaultness(visitor, defaultness); - visitor.visit_ident(ident); - visitor.visit_generics(generics); - visit_bounds(visitor, bounds, BoundKind::Bound); - visit_opt(ty, |ty| visitor.visit_ty(ty)); - walk_ty_alias_where_clauses(visitor, where_clauses); - } - ForeignItemKind::MacCall(mac) => visitor.visit_mac_call(mac), - } - } -} - pub fn walk_pat(vis: &mut T, pat: &mut P) { let Pat { id, kind, span, tokens: _ } = pat.deref_mut(); vis.visit_id(id); diff --git a/compiler/rustc_ast/src/visit.rs b/compiler/rustc_ast/src/visit.rs index c06942574809..bf5c402e52e5 100644 --- a/compiler/rustc_ast/src/visit.rs +++ b/compiler/rustc_ast/src/visit.rs @@ -393,9 +393,7 @@ macro_rules! common_visitor_and_walkers { pub fn walk_fn_header<$($lt,)? V: $Visitor$(<$lt>)?>(visitor: &mut V, header: &$($lt)? $($mut)? FnHeader) $(-> >::Result)? { let FnHeader { safety, coroutine_kind, constness, ext: _ } = header; try_visit!(visit_constness(visitor, constness)); - if let Some(coroutine_kind) = coroutine_kind { - try_visit!(visitor.visit_coroutine_kind(coroutine_kind)); - } + visit_opt!(visitor, visit_coroutine_kind, coroutine_kind); visit_safety(visitor, safety) } @@ -417,6 +415,21 @@ macro_rules! common_visitor_and_walkers { visit_span(visitor, span) } + pub fn walk_item<$($lt,)? V: $Visitor$(<$lt>)?, K: WalkItemKind>( + visitor: &mut V, + item: &$($mut P>)? $($lt Item)?, + ) $(-> >::Result)? { + walk_item_ctxt(visitor, item, ()) + } + + pub fn walk_assoc_item<$($lt,)? V: $Visitor$(<$lt>)?>( + visitor: &mut V, + item: &$($mut P)? $($lt AssocItem)?, + ctxt: AssocCtxt, + ) $(-> >::Result)? { + walk_item_ctxt(visitor, item, ctxt) + } + impl WalkItemKind for ItemKind { type Ctxt = (); fn walk<$($lt,)? V: $Visitor$(<$lt>)?>( @@ -580,12 +593,8 @@ macro_rules! common_visitor_and_walkers { try_visit!(vis.visit_qself(qself)); try_visit!(vis.visit_path(path$(${ignore($lt)}, *id)?)); try_visit!(vis.visit_ident(ident)); - if let Some(rename) = rename { - try_visit!(vis.visit_ident(rename)); - } - if let Some(body) = body { - try_visit!(vis.visit_block(body)); - } + visit_opt!(vis, visit_ident, rename); + visit_opt!(vis, visit_block, body); $(>::Result::output())? } ItemKind::DelegationMac(box DelegationMac { qself, prefix, suffixes, body }) => { @@ -594,14 +603,10 @@ macro_rules! common_visitor_and_walkers { if let Some(suffixes) = suffixes { for (ident, rename) in suffixes { try_visit!(vis.visit_ident(ident)); - if let Some(rename) = rename { - try_visit!(vis.visit_ident(rename)); - } + visit_opt!(vis, visit_ident, rename); } } - if let Some(body) = body { - try_visit!(vis.visit_block(body)); - } + visit_opt!(vis, visit_block, body); $(>::Result::output())? } } @@ -643,6 +648,131 @@ macro_rules! common_visitor_and_walkers { } $(>::Result::output())? } + + impl WalkItemKind for AssocItemKind { + type Ctxt = AssocCtxt; + fn walk<$($lt,)? V: $Visitor$(<$lt>)?>( + &$($lt)? $($mut)? self, + span: Span, + id: NodeId, + visibility: &$($lt)? $($mut)? Visibility, + ctxt: Self::Ctxt, + vis: &mut V, + ) $(-> >::Result)? { + match self { + AssocItemKind::Const(item) => { + walk_const_item(vis, item) + } + AssocItemKind::Fn(func) => { + vis.visit_fn(FnKind::Fn(FnCtxt::Assoc(ctxt), visibility, &$($mut)? *func), span, id) + } + AssocItemKind::Type(box TyAlias { + generics, + ident, + bounds, + ty, + defaultness, + $(${ignore($lt)} #[expect(unused)])? + where_clauses, + }) => { + try_visit!(visit_defaultness(vis, defaultness)); + try_visit!(vis.visit_ident(ident)); + try_visit!(vis.visit_generics(generics)); + try_visit!(visit_bounds(vis, bounds, BoundKind::Bound)); + visit_opt!(vis, visit_ty, ty); + $(${ignore($mut)} + walk_ty_alias_where_clauses(vis, where_clauses); + )? + $(>::Result::output())? + } + AssocItemKind::MacCall(mac) => { + vis.visit_mac_call(mac) + } + AssocItemKind::Delegation(box Delegation { + id, + qself, + path, + ident, + rename, + body, + from_glob: _, + }) => { + try_visit!(visit_id(vis, id)); + try_visit!(vis.visit_qself(qself)); + try_visit!(vis.visit_path(path $(${ignore($lt)}, *id)?)); + try_visit!(vis.visit_ident(ident)); + visit_opt!(vis, visit_ident, rename); + visit_opt!(vis, visit_block, body); + $(>::Result::output())? + } + AssocItemKind::DelegationMac(box DelegationMac { qself, prefix, suffixes, body }) => { + try_visit!(vis.visit_qself(qself)); + try_visit!(vis.visit_path(prefix$(${ignore($lt)}, id)?)); + if let Some(suffixes) = suffixes { + for (ident, rename) in suffixes { + try_visit!(vis.visit_ident(ident)); + visit_opt!(vis, visit_ident, rename); + } + } + visit_opt!(vis, visit_block, body); + $(>::Result::output())? + } + } + } + } + + impl WalkItemKind for ForeignItemKind { + type Ctxt = (); + fn walk<$($lt,)? V: $Visitor$(<$lt>)?>( + &$($lt)? $($mut)? self, + span: Span, + id: NodeId, + visibility: &$($lt)? $($mut)? Visibility, + _ctxt: Self::Ctxt, + vis: &mut V, + ) $(-> >::Result)? { + match self { + ForeignItemKind::Static(box StaticItem { + ident, + ty, + mutability: _, + expr, + safety: _, + define_opaque, + }) => { + try_visit!(vis.visit_ident(ident)); + try_visit!(vis.visit_ty(ty)); + visit_opt!(vis, visit_expr, expr); + walk_define_opaques(vis, define_opaque) + } + ForeignItemKind::Fn(func) => { + vis.visit_fn(FnKind::Fn(FnCtxt::Foreign, visibility, &$($mut)?*func), span, id) + } + ForeignItemKind::TyAlias(box TyAlias { + defaultness, + ident, + generics, + bounds, + ty, + $(${ignore($lt)} #[expect(unused)])? + where_clauses, + }) => { + try_visit!(visit_defaultness(vis, defaultness)); + try_visit!(vis.visit_ident(ident)); + try_visit!(vis.visit_generics(generics)); + try_visit!(visit_bounds(vis, bounds, BoundKind::Bound)); + visit_opt!(vis, visit_ty, ty); + $(${ignore($mut)} + walk_ty_alias_where_clauses(vis, where_clauses); + )? + $(>::Result::output())? + } + ForeignItemKind::MacCall(mac) => { + vis.visit_mac_call(mac) + } + } + } + } }; } @@ -928,55 +1058,6 @@ pub fn walk_pat<'a, V: Visitor<'a>>(visitor: &mut V, pattern: &'a Pat) -> V::Res V::Result::output() } -impl WalkItemKind for ForeignItemKind { - type Ctxt = (); - fn walk<'a, V: Visitor<'a>>( - &'a self, - span: Span, - id: NodeId, - vis: &'a Visibility, - _ctxt: Self::Ctxt, - visitor: &mut V, - ) -> V::Result { - match self { - ForeignItemKind::Static(box StaticItem { - ident, - ty, - mutability: _, - expr, - safety: _, - define_opaque, - }) => { - try_visit!(visitor.visit_ident(ident)); - try_visit!(visitor.visit_ty(ty)); - visit_opt!(visitor, visit_expr, expr); - try_visit!(walk_define_opaques(visitor, define_opaque)); - } - ForeignItemKind::Fn(func) => { - let kind = FnKind::Fn(FnCtxt::Foreign, vis, &*func); - try_visit!(visitor.visit_fn(kind, span, id)); - } - ForeignItemKind::TyAlias(box TyAlias { - generics, - ident, - bounds, - ty, - defaultness: _, - where_clauses: _, - }) => { - try_visit!(visitor.visit_ident(ident)); - try_visit!(visitor.visit_generics(generics)); - walk_list!(visitor, visit_param_bound, bounds, BoundKind::Bound); - visit_opt!(visitor, visit_ty, ty); - } - ForeignItemKind::MacCall(mac) => { - try_visit!(visitor.visit_mac_call(mac)); - } - } - V::Result::output() - } -} - pub fn walk_param_bound<'a, V: Visitor<'a>>(visitor: &mut V, bound: &'a GenericBound) -> V::Result { match bound { GenericBound::Trait(trait_ref) => visitor.visit_poly_trait_ref(trait_ref), @@ -1135,99 +1216,6 @@ pub fn walk_fn<'a, V: Visitor<'a>>(visitor: &mut V, kind: FnKind<'a>) -> V::Resu V::Result::output() } -impl WalkItemKind for AssocItemKind { - type Ctxt = AssocCtxt; - fn walk<'a, V: Visitor<'a>>( - &'a self, - span: Span, - id: NodeId, - vis: &'a Visibility, - ctxt: Self::Ctxt, - visitor: &mut V, - ) -> V::Result { - match self { - AssocItemKind::Const(box ConstItem { - defaultness: _, - ident, - generics, - ty, - expr, - define_opaque, - }) => { - try_visit!(visitor.visit_ident(ident)); - try_visit!(visitor.visit_generics(generics)); - try_visit!(visitor.visit_ty(ty)); - visit_opt!(visitor, visit_expr, expr); - try_visit!(walk_define_opaques(visitor, define_opaque)); - } - AssocItemKind::Fn(func) => { - let kind = FnKind::Fn(FnCtxt::Assoc(ctxt), vis, &*func); - try_visit!(visitor.visit_fn(kind, span, id)); - } - AssocItemKind::Type(box TyAlias { - generics, - ident, - bounds, - ty, - defaultness: _, - where_clauses: _, - }) => { - try_visit!(visitor.visit_generics(generics)); - try_visit!(visitor.visit_ident(ident)); - walk_list!(visitor, visit_param_bound, bounds, BoundKind::Bound); - visit_opt!(visitor, visit_ty, ty); - } - AssocItemKind::MacCall(mac) => { - try_visit!(visitor.visit_mac_call(mac)); - } - AssocItemKind::Delegation(box Delegation { - id, - qself, - path, - ident, - rename, - body, - from_glob: _, - }) => { - try_visit!(visitor.visit_qself(qself)); - try_visit!(visitor.visit_path(path, *id)); - try_visit!(visitor.visit_ident(ident)); - visit_opt!(visitor, visit_ident, rename); - visit_opt!(visitor, visit_block, body); - } - AssocItemKind::DelegationMac(box DelegationMac { qself, prefix, suffixes, body }) => { - try_visit!(visitor.visit_qself(qself)); - try_visit!(visitor.visit_path(prefix, id)); - if let Some(suffixes) = suffixes { - for (ident, rename) in suffixes { - visitor.visit_ident(ident); - if let Some(rename) = rename { - visitor.visit_ident(rename); - } - } - } - visit_opt!(visitor, visit_block, body); - } - } - V::Result::output() - } -} - -pub fn walk_item<'a, V: Visitor<'a>>( - visitor: &mut V, - item: &'a Item>, -) -> V::Result { - walk_item_ctxt(visitor, item, ()) -} - -pub fn walk_assoc_item<'a, V: Visitor<'a>>( - visitor: &mut V, - item: &'a AssocItem, - ctxt: AssocCtxt, -) -> V::Result { - walk_item_ctxt(visitor, item, ctxt) -} - pub fn walk_struct_def<'a, V: Visitor<'a>>( visitor: &mut V, struct_definition: &'a VariantData, From e3bbbeeafd159b9cb7b000950420a20d8910fd5e Mon Sep 17 00:00:00 2001 From: Folkert de Vries Date: Wed, 30 Apr 2025 11:23:09 +0200 Subject: [PATCH 32/46] support `#[cfg(...)]` on arguments to the `asm!` macros --- compiler/rustc_builtin_macros/messages.ftl | 5 + compiler/rustc_builtin_macros/src/asm.rs | 88 +++++++++++- compiler/rustc_builtin_macros/src/errors.rs | 7 + compiler/rustc_feature/src/unstable.rs | 2 + compiler/rustc_span/src/symbol.rs | 1 + tests/ui/asm/cfg-parse-error.rs | 56 ++++++++ tests/ui/asm/cfg-parse-error.stderr | 36 +++++ tests/ui/asm/cfg.rs | 125 ++++++++++++++++++ .../ui/feature-gates/feature-gate-asm_cfg.rs | 48 +++++++ .../feature-gates/feature-gate-asm_cfg.stderr | 57 ++++++++ 10 files changed, 421 insertions(+), 4 deletions(-) create mode 100644 tests/ui/asm/cfg-parse-error.rs create mode 100644 tests/ui/asm/cfg-parse-error.stderr create mode 100644 tests/ui/asm/cfg.rs create mode 100644 tests/ui/feature-gates/feature-gate-asm_cfg.rs create mode 100644 tests/ui/feature-gates/feature-gate-asm_cfg.stderr diff --git a/compiler/rustc_builtin_macros/messages.ftl b/compiler/rustc_builtin_macros/messages.ftl index 73be954cefd7..9e0fe255e999 100644 --- a/compiler/rustc_builtin_macros/messages.ftl +++ b/compiler/rustc_builtin_macros/messages.ftl @@ -1,6 +1,11 @@ builtin_macros_alloc_error_must_be_fn = alloc_error_handler must be a function builtin_macros_alloc_must_statics = allocators must be statics +builtin_macros_asm_attribute_not_supported = + this attribute is not supported on assembly +builtin_macros_asm_cfg = + the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + builtin_macros_asm_clobber_abi = clobber_abi builtin_macros_asm_clobber_no_reg = asm with `clobber_abi` must specify explicit registers for outputs builtin_macros_asm_clobber_outputs = generic outputs diff --git a/compiler/rustc_builtin_macros/src/asm.rs b/compiler/rustc_builtin_macros/src/asm.rs index 62ee71fecc27..593d9ddfdf87 100644 --- a/compiler/rustc_builtin_macros/src/asm.rs +++ b/compiler/rustc_builtin_macros/src/asm.rs @@ -10,18 +10,20 @@ use rustc_index::bit_set::GrowableBitSet; use rustc_parse::exp; use rustc_parse::parser::{ExpKeywordPair, Parser}; use rustc_session::lint; -use rustc_span::{ErrorGuaranteed, InnerSpan, Span, Symbol, kw}; +use rustc_session::parse::feature_err; +use rustc_span::{ErrorGuaranteed, InnerSpan, Span, Symbol, kw, sym}; use rustc_target::asm::InlineAsmArch; use smallvec::smallvec; use {rustc_ast as ast, rustc_parse_format as parse}; -use crate::errors; use crate::util::{ExprToSpannedString, expr_to_spanned_string}; +use crate::{errors, fluent_generated as fluent}; /// An argument to one of the `asm!` macros. The argument is syntactically valid, but is otherwise /// not validated at all. pub struct AsmArg { pub kind: AsmArgKind, + pub attributes: AsmAttrVec, pub span: Span, } @@ -52,6 +54,44 @@ struct ValidatedAsmArgs { pub options_spans: Vec, } +/// A parsed list of attributes that is not attached to any item. +/// Used to check whether `asm!` arguments are configured out. +pub struct AsmAttrVec(pub ast::AttrVec); + +impl AsmAttrVec { + fn parse<'a>(p: &mut Parser<'a>) -> PResult<'a, Self> { + let mut attributes = ast::AttrVec::new(); + while p.token == token::Pound { + let attr = p.parse_attribute(rustc_parse::parser::attr::InnerAttrPolicy::Permitted)?; + attributes.push(attr); + } + + Ok(Self(attributes)) + } +} +impl ast::HasAttrs for AsmAttrVec { + // Follows `ast::Expr`. + const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false; + + fn attrs(&self) -> &[rustc_ast::Attribute] { + &self.0 + } + + fn visit_attrs(&mut self, f: impl FnOnce(&mut rustc_ast::AttrVec)) { + f(&mut self.0) + } +} + +impl ast::HasTokens for AsmAttrVec { + fn tokens(&self) -> Option<&rustc_ast::tokenstream::LazyAttrTokenStream> { + None + } + + fn tokens_mut(&mut self) -> Option<&mut Option> { + None + } +} + /// Used for better error messages when operand types are used that are not /// supported by the current macro (e.g. `in` or `out` for `global_asm!`) /// @@ -167,8 +207,13 @@ pub fn parse_asm_args<'a>( let mut args = Vec::new(); + let attributes = AsmAttrVec::parse(p)?; let first_template = p.parse_expr()?; - args.push(AsmArg { span: first_template.span, kind: AsmArgKind::Template(first_template) }); + args.push(AsmArg { + span: first_template.span, + kind: AsmArgKind::Template(first_template), + attributes, + }); let mut allow_templates = true; @@ -188,6 +233,7 @@ pub fn parse_asm_args<'a>( break; } + let attributes = AsmAttrVec::parse(p)?; let span_start = p.token.span; // Parse `clobber_abi`. @@ -197,6 +243,7 @@ pub fn parse_asm_args<'a>( args.push(AsmArg { kind: AsmArgKind::ClobberAbi(parse_clobber_abi(p)?), span: span_start.to(p.prev_token.span), + attributes, }); continue; @@ -209,6 +256,7 @@ pub fn parse_asm_args<'a>( args.push(AsmArg { kind: AsmArgKind::Options(parse_options(p, asm_macro)?), span: span_start.to(p.prev_token.span), + attributes, }); continue; @@ -231,6 +279,7 @@ pub fn parse_asm_args<'a>( args.push(AsmArg { span: span_start.to(p.prev_token.span), kind: AsmArgKind::Operand(name, op), + attributes, }); } else if allow_templates { let template = p.parse_expr()?; @@ -252,7 +301,11 @@ pub fn parse_asm_args<'a>( } } - args.push(AsmArg { span: template.span, kind: AsmArgKind::Template(template) }); + args.push(AsmArg { + span: template.span, + kind: AsmArgKind::Template(template), + attributes, + }); } else { p.unexpected_any()? } @@ -278,6 +331,13 @@ fn validate_asm_args<'a>( ) -> PResult<'a, ValidatedAsmArgs> { let dcx = ecx.dcx(); + let strip_unconfigured = rustc_expand::config::StripUnconfigured { + sess: ecx.sess, + features: Some(ecx.ecfg.features), + config_tokens: false, + lint_node_id: ecx.current_expansion.lint_node_id, + }; + let mut validated = ValidatedAsmArgs { templates: vec![], operands: vec![], @@ -291,6 +351,26 @@ fn validate_asm_args<'a>( let mut allow_templates = true; for arg in args { + for attr in arg.attributes.0.iter() { + match attr.name() { + Some(sym::cfg | sym::cfg_attr) => { + if !ecx.ecfg.features.asm_cfg() { + let span = attr.span(); + feature_err(ecx.sess, sym::asm_cfg, span, fluent::builtin_macros_asm_cfg) + .emit(); + } + } + _ => { + ecx.dcx().emit_err(errors::AsmAttributeNotSupported { span: attr.span() }); + } + } + } + + // Skip arguments that are configured out. + if ecx.ecfg.features.asm_cfg() && strip_unconfigured.configure(arg.attributes).is_none() { + continue; + } + match arg.kind { AsmArgKind::Template(template) => { // The error for the first template is delayed. diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs index b28f7d312d93..73e8fed321cb 100644 --- a/compiler/rustc_builtin_macros/src/errors.rs +++ b/compiler/rustc_builtin_macros/src/errors.rs @@ -795,6 +795,13 @@ pub(crate) struct AsmRequiresTemplate { pub(crate) span: Span, } +#[derive(Diagnostic)] +#[diag(builtin_macros_asm_attribute_not_supported)] +pub(crate) struct AsmAttributeNotSupported { + #[primary_span] + pub(crate) span: Span, +} + #[derive(Diagnostic)] #[diag(builtin_macros_asm_expected_comma)] pub(crate) struct AsmExpectedComma { diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs index 6cdcf451f37e..3e408a031118 100644 --- a/compiler/rustc_feature/src/unstable.rs +++ b/compiler/rustc_feature/src/unstable.rs @@ -371,6 +371,8 @@ declare_features! ( (unstable, arbitrary_self_types, "1.23.0", Some(44874)), /// Allows inherent and trait methods with arbitrary self types that are raw pointers. (unstable, arbitrary_self_types_pointers, "1.83.0", Some(44874)), + /// Allows #[cfg(...)] on inline assembly templates and operands. + (unstable, asm_cfg, "CURRENT_RUSTC_VERSION", Some(140364)), /// Enables experimental inline assembly support for additional architectures. (unstable, asm_experimental_arch, "1.58.0", Some(93335)), /// Enables experimental register support in inline assembly. diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index fbe3b4ca6f5f..391d820faadd 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -475,6 +475,7 @@ symbols! { as_ref, as_str, asm, + asm_cfg, asm_const, asm_experimental_arch, asm_experimental_reg, diff --git a/tests/ui/asm/cfg-parse-error.rs b/tests/ui/asm/cfg-parse-error.rs new file mode 100644 index 000000000000..c66a627ca94f --- /dev/null +++ b/tests/ui/asm/cfg-parse-error.rs @@ -0,0 +1,56 @@ +//@ needs-asm-support +#![feature(asm_cfg)] + +use std::arch::asm; + +fn main() { + unsafe { + asm!( + "", + #[cfg(false)] + clobber_abi("C"), + #[cfg(false)] + options(att_syntax), + #[cfg(false)] + a = out(reg) x, + "", + //~^ ERROR expected one of `clobber_abi`, `const` + ); + asm!( + #[cfg(false)] + "", + #[cfg(false)] + const { + 5 + }, + "", //~ ERROR expected one of `clobber_abi`, `const` + ); + + asm!( + #[cfg_attr(true, cfg(false))] + const { + 5 + }, + "", + ); + + // This is not accepted because `a = out(reg) x` is not a valid expression. + asm!( + #[cfg(false)] + a = out(reg) x, //~ ERROR expected token: `,` + "", + ); + + // For now, any non-cfg attributes are rejected + asm!( + #[rustfmt::skip] //~ ERROR this attribute is not supported on assembly + "", + ); + + // For now, any non-cfg attributes are rejected + asm!( + #![rustfmt::skip] //~ ERROR an inner attribute is not permitted in this context + "", + ); + } +} diff --git a/tests/ui/asm/cfg-parse-error.stderr b/tests/ui/asm/cfg-parse-error.stderr new file mode 100644 index 000000000000..19c76adee637 --- /dev/null +++ b/tests/ui/asm/cfg-parse-error.stderr @@ -0,0 +1,36 @@ +error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` + --> $DIR/cfg-parse-error.rs:16:13 + | +LL | a = out(reg) x, + | - expected one of 10 possible tokens +LL | "", + | ^^ unexpected token + +error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` + --> $DIR/cfg-parse-error.rs:26:13 + | +LL | }, + | - expected one of 10 possible tokens +LL | "", + | ^^ unexpected token + +error: expected token: `,` + --> $DIR/cfg-parse-error.rs:40:26 + | +LL | a = out(reg) x, + | ^ expected `,` + +error: this attribute is not supported on assembly + --> $DIR/cfg-parse-error.rs:46:13 + | +LL | #[rustfmt::skip] + | ^^^^^^^^^^^^^^^^ + +error: this attribute is not supported on assembly + --> $DIR/cfg-parse-error.rs:52:13 + | +LL | #![rustfmt::skip] + | ^^^^^^^^^^^^^^^^^ + +error: aborting due to 5 previous errors + diff --git a/tests/ui/asm/cfg.rs b/tests/ui/asm/cfg.rs new file mode 100644 index 000000000000..bcf86340b9d8 --- /dev/null +++ b/tests/ui/asm/cfg.rs @@ -0,0 +1,125 @@ +// Check that `cfg` and `cfg_attr` work as expected. +// +//@ revisions: reva revb +//@ only-x86_64 +//@ run-pass +#![feature(asm_cfg, cfg_select)] + +use std::arch::{asm, naked_asm}; + +#[unsafe(naked)] +extern "C" fn ignore_const_operand() -> u64 { + naked_asm!( + "mov rax, 5", + #[cfg(revb)] + "mov rax, {a}", + "ret", + #[cfg(revb)] + a = const 10, + ) +} + +#[unsafe(naked)] +extern "C" fn ignore_const_operand_cfg_attr() -> u64 { + naked_asm!( + "mov rax, 5", + #[cfg_attr(true, cfg(revb))] + "mov rax, {a}", + "ret", + #[cfg_attr(true, cfg(revb))] + a = const 10, + ) +} + +#[unsafe(naked)] +extern "C" fn const_operand() -> u64 { + naked_asm!( + "mov rax, {a}", + "ret", + #[cfg(reva)] + a = const 5, + #[cfg(revb)] + a = const 10, + ) +} + +fn options() { + // Without the cfg, this throws an error that the `att_syntax` option is provided twice. + unsafe { + asm!( + "nop", + #[cfg(false)] + options(att_syntax), + options(att_syntax) + ) + } +} + +fn clobber_abi() { + // Without the cfg, this throws an error that the "C" abi is provided twice. + unsafe { + asm!( + "nop", + #[cfg(false)] + clobber_abi("C"), + clobber_abi("C"), + ); + } +} + +#[unsafe(naked)] +extern "C" fn first_template() -> u64 { + naked_asm!( + #[cfg(reva)] + "mov rax, 5", + #[cfg(revb)] + "mov rax, 10", + "ret", + ) +} + +#[unsafe(naked)] +extern "C" fn true_and_false() -> u64 { + naked_asm!( + "mov rax, 5", + #[cfg(true)] + #[cfg(false)] + "mov rax, 10", + "ret", + ) +} + +#[unsafe(naked)] +extern "C" fn false_and_true() -> u64 { + naked_asm!( + "mov rax, 5", + #[cfg(false)] + #[cfg(true)] + "mov rax, 10", + "ret", + ) +} + +pub fn main() { + std::cfg_select! { + reva => { + assert_eq!(const_operand(), 5); + assert_eq!(ignore_const_operand_cfg_attr(), 5); + assert_eq!(ignore_const_operand(), 5); + assert_eq!(first_template(), 5); + + } + revb => { + assert_eq!(const_operand(), 10); + assert_eq!(ignore_const_operand_cfg_attr(), 10); + assert_eq!(ignore_const_operand(), 10); + assert_eq!(first_template(), 10); + + } + } + options(); + clobber_abi(); + + assert_eq!(true_and_false(), 5); + assert_eq!(false_and_true(), 5); +} diff --git a/tests/ui/feature-gates/feature-gate-asm_cfg.rs b/tests/ui/feature-gates/feature-gate-asm_cfg.rs new file mode 100644 index 000000000000..ef8bf75b6929 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-asm_cfg.rs @@ -0,0 +1,48 @@ +//@ only-x86_64 +#![crate_type = "lib"] + +use std::arch::{asm, global_asm, naked_asm}; + +global_asm!( + "nop", + #[cfg(false)] + //~^ ERROR the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + "nop" +); + +#[unsafe(naked)] +#[no_mangle] +extern "C" fn naked() { + naked_asm!( + "mov rax, 5", + #[cfg(false)] + //~^ ERROR the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + "mov rax, {a}", + "ret", + #[cfg(false)] + //~^ ERROR the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + a = const 10, + ) +} + +fn asm() { + unsafe { + asm!( + "nop", + #[cfg(false)] + //~^ ERROR the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + clobber_abi("C"), + clobber_abi("C"), //~ ERROR `C` ABI specified multiple times + ); + } +} + +fn bad_attribute() { + unsafe { + asm!( + #[inline] + //~^ ERROR this attribute is not supported on assembly + "nop" + ) + }; +} diff --git a/tests/ui/feature-gates/feature-gate-asm_cfg.stderr b/tests/ui/feature-gates/feature-gate-asm_cfg.stderr new file mode 100644 index 000000000000..e92d1e8c4874 --- /dev/null +++ b/tests/ui/feature-gates/feature-gate-asm_cfg.stderr @@ -0,0 +1,57 @@ +error[E0658]: the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + --> $DIR/feature-gate-asm_cfg.rs:8:5 + | +LL | #[cfg(false)] + | ^^^^^^^^^^^^^ + | + = note: see issue #140364 for more information + = help: add `#![feature(asm_cfg)]` 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[E0658]: the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + --> $DIR/feature-gate-asm_cfg.rs:18:9 + | +LL | #[cfg(false)] + | ^^^^^^^^^^^^^ + | + = note: see issue #140364 for more information + = help: add `#![feature(asm_cfg)]` 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[E0658]: the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + --> $DIR/feature-gate-asm_cfg.rs:22:9 + | +LL | #[cfg(false)] + | ^^^^^^^^^^^^^ + | + = note: see issue #140364 for more information + = help: add `#![feature(asm_cfg)]` 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[E0658]: the `#[cfg(/* ... */)]` and `#[cfg_attr(/* ... */)]` attributes on assembly are unstable + --> $DIR/feature-gate-asm_cfg.rs:32:13 + | +LL | #[cfg(false)] + | ^^^^^^^^^^^^^ + | + = note: see issue #140364 for more information + = help: add `#![feature(asm_cfg)]` 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: this attribute is not supported on assembly + --> $DIR/feature-gate-asm_cfg.rs:43:13 + | +LL | #[inline] + | ^^^^^^^^^ + +error: `C` ABI specified multiple times + --> $DIR/feature-gate-asm_cfg.rs:35:13 + | +LL | clobber_abi("C"), + | ---------------- previously specified here +LL | clobber_abi("C"), + | ^^^^^^^^^^^^^^^^ + +error: aborting due to 6 previous errors + +For more information about this error, try `rustc --explain E0658`. From c7c0194d980cbb812a61e369b8f92faf75b12f8e Mon Sep 17 00:00:00 2001 From: Folkert de Vries Date: Mon, 5 May 2025 15:24:14 +0200 Subject: [PATCH 33/46] move asm parsing code into `rustc_parse` --- compiler/rustc_builtin_macros/messages.ftl | 27 +- compiler/rustc_builtin_macros/src/asm.rs | 387 +------------------- compiler/rustc_builtin_macros/src/errors.rs | 79 +--- compiler/rustc_parse/messages.ftl | 24 ++ compiler/rustc_parse/src/errors.rs | 70 ++++ compiler/rustc_parse/src/parser/asm.rs | 385 +++++++++++++++++++ compiler/rustc_parse/src/parser/mod.rs | 1 + src/tools/rustfmt/src/lib.rs | 1 - src/tools/rustfmt/src/parse/macros/asm.rs | 2 +- tests/ui/asm/cfg-parse-error.rs | 5 +- tests/ui/asm/cfg-parse-error.stderr | 19 +- tests/ui/asm/parse-error.stderr | 16 +- 12 files changed, 518 insertions(+), 498 deletions(-) create mode 100644 compiler/rustc_parse/src/parser/asm.rs diff --git a/compiler/rustc_builtin_macros/messages.ftl b/compiler/rustc_builtin_macros/messages.ftl index 9e0fe255e999..628bdee1129a 100644 --- a/compiler/rustc_builtin_macros/messages.ftl +++ b/compiler/rustc_builtin_macros/messages.ftl @@ -14,17 +14,6 @@ builtin_macros_asm_duplicate_arg = duplicate argument named `{$name}` .label = previously here .arg = duplicate argument -builtin_macros_asm_expected_comma = expected token: `,` - .label = expected `,` - -builtin_macros_asm_expected_other = expected operand, {$is_inline_asm -> - [false] options - *[true] clobber_abi, options - }, or additional template string - -builtin_macros_asm_expected_string_literal = expected string literal - .label = not a string literal - builtin_macros_asm_explicit_register_name = explicit register arguments cannot have names builtin_macros_asm_mayunwind = asm labels are not allowed with the `may_unwind` option @@ -50,17 +39,8 @@ builtin_macros_asm_pure_combine = the `pure` option must be combined with either builtin_macros_asm_pure_no_output = asm with the `pure` option must have at least one output -builtin_macros_asm_requires_template = requires at least a template string argument - -builtin_macros_asm_sym_no_path = expected a path for argument to `sym` - -builtin_macros_asm_underscore_input = _ cannot be used for input operands - builtin_macros_asm_unsupported_clobber_abi = `clobber_abi` cannot be used with `{$macro_name}!` -builtin_macros_asm_unsupported_operand = the `{$symbol}` operand cannot be used with `{$macro_name}!` - .label = the `{$symbol}` operand is not meaningful for global-scoped inline assembly, remove it - builtin_macros_asm_unsupported_option = the `{$symbol}` option cannot be used with `{$macro_name}!` .label = the `{$symbol}` option is not meaningful for global-scoped inline assembly .suggestion = remove this option @@ -167,7 +147,10 @@ builtin_macros_expected_comma_in_list = expected token: `,` builtin_macros_expected_one_cfg_pattern = expected 1 cfg-pattern -builtin_macros_expected_register_class_or_explicit_register = expected register class or explicit register +builtin_macros_expected_other = expected operand, {$is_inline_asm -> + [false] options + *[true] clobber_abi, options + }, or additional template string builtin_macros_export_macro_rules = cannot export macro_rules! macros from a `proc-macro` crate type currently @@ -260,8 +243,6 @@ builtin_macros_no_default_variant = `#[derive(Default)]` on enum with no `#[defa .label = this enum needs a unit variant marked with `#[default]` .suggestion = make this unit variant default by placing `#[default]` on it -builtin_macros_non_abi = at least one abi must be provided as an argument to `clobber_abi` - builtin_macros_non_exhaustive_default = default variant must be exhaustive .label = declared `#[non_exhaustive]` here .help = consider a manual implementation of `Default` diff --git a/compiler/rustc_builtin_macros/src/asm.rs b/compiler/rustc_builtin_macros/src/asm.rs index 593d9ddfdf87..1fb998172226 100644 --- a/compiler/rustc_builtin_macros/src/asm.rs +++ b/compiler/rustc_builtin_macros/src/asm.rs @@ -1,4 +1,3 @@ -use ast::token::IdentIsRaw; use lint::BuiltinLintDiag; use rustc_ast::ptr::P; use rustc_ast::tokenstream::TokenStream; @@ -7,11 +6,10 @@ use rustc_data_structures::fx::{FxHashMap, FxIndexMap}; use rustc_errors::PResult; use rustc_expand::base::*; use rustc_index::bit_set::GrowableBitSet; -use rustc_parse::exp; -use rustc_parse::parser::{ExpKeywordPair, Parser}; +use rustc_parse::parser::asm::*; use rustc_session::lint; use rustc_session::parse::feature_err; -use rustc_span::{ErrorGuaranteed, InnerSpan, Span, Symbol, kw, sym}; +use rustc_span::{ErrorGuaranteed, InnerSpan, Span, Symbol, sym}; use rustc_target::asm::InlineAsmArch; use smallvec::smallvec; use {rustc_ast as ast, rustc_parse_format as parse}; @@ -19,30 +17,6 @@ use {rustc_ast as ast, rustc_parse_format as parse}; use crate::util::{ExprToSpannedString, expr_to_spanned_string}; use crate::{errors, fluent_generated as fluent}; -/// An argument to one of the `asm!` macros. The argument is syntactically valid, but is otherwise -/// not validated at all. -pub struct AsmArg { - pub kind: AsmArgKind, - pub attributes: AsmAttrVec, - pub span: Span, -} - -pub enum AsmArgKind { - Template(P), - Operand(Option, ast::InlineAsmOperand), - Options(Vec), - ClobberAbi(Vec<(Symbol, Span)>), -} - -pub struct AsmOption { - pub symbol: Symbol, - pub span: Span, - // A bitset, with only the bit for this option's symbol set. - pub options: ast::InlineAsmOptions, - // Used when suggesting to remove an option. - pub span_with_comma: Span, -} - /// Validated assembly arguments, ready for macro expansion. struct ValidatedAsmArgs { pub templates: Vec>, @@ -54,266 +28,6 @@ struct ValidatedAsmArgs { pub options_spans: Vec, } -/// A parsed list of attributes that is not attached to any item. -/// Used to check whether `asm!` arguments are configured out. -pub struct AsmAttrVec(pub ast::AttrVec); - -impl AsmAttrVec { - fn parse<'a>(p: &mut Parser<'a>) -> PResult<'a, Self> { - let mut attributes = ast::AttrVec::new(); - while p.token == token::Pound { - let attr = p.parse_attribute(rustc_parse::parser::attr::InnerAttrPolicy::Permitted)?; - attributes.push(attr); - } - - Ok(Self(attributes)) - } -} -impl ast::HasAttrs for AsmAttrVec { - // Follows `ast::Expr`. - const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false; - - fn attrs(&self) -> &[rustc_ast::Attribute] { - &self.0 - } - - fn visit_attrs(&mut self, f: impl FnOnce(&mut rustc_ast::AttrVec)) { - f(&mut self.0) - } -} - -impl ast::HasTokens for AsmAttrVec { - fn tokens(&self) -> Option<&rustc_ast::tokenstream::LazyAttrTokenStream> { - None - } - - fn tokens_mut(&mut self) -> Option<&mut Option> { - None - } -} - -/// Used for better error messages when operand types are used that are not -/// supported by the current macro (e.g. `in` or `out` for `global_asm!`) -/// -/// returns -/// -/// - `Ok(true)` if the current token matches the keyword, and was expected -/// - `Ok(false)` if the current token does not match the keyword -/// - `Err(_)` if the current token matches the keyword, but was not expected -fn eat_operand_keyword<'a>( - p: &mut Parser<'a>, - exp: ExpKeywordPair, - asm_macro: AsmMacro, -) -> PResult<'a, bool> { - if matches!(asm_macro, AsmMacro::Asm) { - Ok(p.eat_keyword(exp)) - } else { - let span = p.token.span; - if p.eat_keyword_noexpect(exp.kw) { - // in gets printed as `r#in` otherwise - let symbol = if exp.kw == kw::In { "in" } else { exp.kw.as_str() }; - Err(p.dcx().create_err(errors::AsmUnsupportedOperand { - span, - symbol, - macro_name: asm_macro.macro_name(), - })) - } else { - Ok(false) - } - } -} - -fn parse_asm_operand<'a>( - p: &mut Parser<'a>, - asm_macro: AsmMacro, -) -> PResult<'a, Option> { - let dcx = p.dcx(); - - Ok(Some(if eat_operand_keyword(p, exp!(In), asm_macro)? { - let reg = parse_reg(p)?; - if p.eat_keyword(exp!(Underscore)) { - let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); - return Err(err); - } - let expr = p.parse_expr()?; - ast::InlineAsmOperand::In { reg, expr } - } else if eat_operand_keyword(p, exp!(Out), asm_macro)? { - let reg = parse_reg(p)?; - let expr = if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; - ast::InlineAsmOperand::Out { reg, expr, late: false } - } else if eat_operand_keyword(p, exp!(Lateout), asm_macro)? { - let reg = parse_reg(p)?; - let expr = if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; - ast::InlineAsmOperand::Out { reg, expr, late: true } - } else if eat_operand_keyword(p, exp!(Inout), asm_macro)? { - let reg = parse_reg(p)?; - if p.eat_keyword(exp!(Underscore)) { - let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); - return Err(err); - } - let expr = p.parse_expr()?; - if p.eat(exp!(FatArrow)) { - let out_expr = - if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; - ast::InlineAsmOperand::SplitInOut { reg, in_expr: expr, out_expr, late: false } - } else { - ast::InlineAsmOperand::InOut { reg, expr, late: false } - } - } else if eat_operand_keyword(p, exp!(Inlateout), asm_macro)? { - let reg = parse_reg(p)?; - if p.eat_keyword(exp!(Underscore)) { - let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); - return Err(err); - } - let expr = p.parse_expr()?; - if p.eat(exp!(FatArrow)) { - let out_expr = - if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; - ast::InlineAsmOperand::SplitInOut { reg, in_expr: expr, out_expr, late: true } - } else { - ast::InlineAsmOperand::InOut { reg, expr, late: true } - } - } else if eat_operand_keyword(p, exp!(Label), asm_macro)? { - let block = p.parse_block()?; - ast::InlineAsmOperand::Label { block } - } else if p.eat_keyword(exp!(Const)) { - let anon_const = p.parse_expr_anon_const()?; - ast::InlineAsmOperand::Const { anon_const } - } else if p.eat_keyword(exp!(Sym)) { - let expr = p.parse_expr()?; - let ast::ExprKind::Path(qself, path) = &expr.kind else { - let err = dcx.create_err(errors::AsmSymNoPath { span: expr.span }); - return Err(err); - }; - let sym = - ast::InlineAsmSym { id: ast::DUMMY_NODE_ID, qself: qself.clone(), path: path.clone() }; - ast::InlineAsmOperand::Sym { sym } - } else { - return Ok(None); - })) -} - -// Public for rustfmt. -pub fn parse_asm_args<'a>( - p: &mut Parser<'a>, - sp: Span, - asm_macro: AsmMacro, -) -> PResult<'a, Vec> { - let dcx = p.dcx(); - - if p.token == token::Eof { - return Err(dcx.create_err(errors::AsmRequiresTemplate { span: sp })); - } - - let mut args = Vec::new(); - - let attributes = AsmAttrVec::parse(p)?; - let first_template = p.parse_expr()?; - args.push(AsmArg { - span: first_template.span, - kind: AsmArgKind::Template(first_template), - attributes, - }); - - let mut allow_templates = true; - - while p.token != token::Eof { - if !p.eat(exp!(Comma)) { - if allow_templates { - // After a template string, we always expect *only* a comma... - return Err(dcx.create_err(errors::AsmExpectedComma { span: p.token.span })); - } else { - // ...after that delegate to `expect` to also include the other expected tokens. - return Err(p.expect(exp!(Comma)).err().unwrap()); - } - } - - // Accept trailing commas. - if p.token == token::Eof { - break; - } - - let attributes = AsmAttrVec::parse(p)?; - let span_start = p.token.span; - - // Parse `clobber_abi`. - if p.eat_keyword(exp!(ClobberAbi)) { - allow_templates = false; - - args.push(AsmArg { - kind: AsmArgKind::ClobberAbi(parse_clobber_abi(p)?), - span: span_start.to(p.prev_token.span), - attributes, - }); - - continue; - } - - // Parse `options`. - if p.eat_keyword(exp!(Options)) { - allow_templates = false; - - args.push(AsmArg { - kind: AsmArgKind::Options(parse_options(p, asm_macro)?), - span: span_start.to(p.prev_token.span), - attributes, - }); - - continue; - } - - // Parse operand names. - let name = if p.token.is_ident() && p.look_ahead(1, |t| *t == token::Eq) { - let (ident, _) = p.token.ident().unwrap(); - p.bump(); - p.expect(exp!(Eq))?; - allow_templates = false; - Some(ident.name) - } else { - None - }; - - if let Some(op) = parse_asm_operand(p, asm_macro)? { - allow_templates = false; - - args.push(AsmArg { - span: span_start.to(p.prev_token.span), - kind: AsmArgKind::Operand(name, op), - attributes, - }); - } else if allow_templates { - let template = p.parse_expr()?; - // If it can't possibly expand to a string, provide diagnostics here to include other - // things it could have been. - match template.kind { - ast::ExprKind::Lit(token_lit) - if matches!( - token_lit.kind, - token::LitKind::Str | token::LitKind::StrRaw(_) - ) => {} - ast::ExprKind::MacCall(..) => {} - _ => { - let err = dcx.create_err(errors::AsmExpectedOther { - span: template.span, - is_inline_asm: matches!(asm_macro, AsmMacro::Asm), - }); - return Err(err); - } - } - - args.push(AsmArg { - span: template.span, - kind: AsmArgKind::Template(template), - attributes, - }); - } else { - p.unexpected_any()? - } - } - - Ok(args) -} - fn parse_args<'a>( ecx: &ExtCtxt<'a>, sp: Span, @@ -559,103 +273,6 @@ fn validate_asm_args<'a>( Ok(validated) } -fn parse_options<'a>(p: &mut Parser<'a>, asm_macro: AsmMacro) -> PResult<'a, Vec> { - p.expect(exp!(OpenParen))?; - - let mut asm_options = Vec::new(); - - while !p.eat(exp!(CloseParen)) { - const OPTIONS: [(ExpKeywordPair, ast::InlineAsmOptions); ast::InlineAsmOptions::COUNT] = [ - (exp!(Pure), ast::InlineAsmOptions::PURE), - (exp!(Nomem), ast::InlineAsmOptions::NOMEM), - (exp!(Readonly), ast::InlineAsmOptions::READONLY), - (exp!(PreservesFlags), ast::InlineAsmOptions::PRESERVES_FLAGS), - (exp!(Noreturn), ast::InlineAsmOptions::NORETURN), - (exp!(Nostack), ast::InlineAsmOptions::NOSTACK), - (exp!(MayUnwind), ast::InlineAsmOptions::MAY_UNWIND), - (exp!(AttSyntax), ast::InlineAsmOptions::ATT_SYNTAX), - (exp!(Raw), ast::InlineAsmOptions::RAW), - ]; - - 'blk: { - for (exp, options) in OPTIONS { - // Gives a more accurate list of expected next tokens. - let kw_matched = if asm_macro.is_supported_option(options) { - p.eat_keyword(exp) - } else { - p.eat_keyword_noexpect(exp.kw) - }; - - if kw_matched { - let span = p.prev_token.span; - let span_with_comma = - if p.token == token::Comma { span.to(p.token.span) } else { span }; - - asm_options.push(AsmOption { symbol: exp.kw, span, options, span_with_comma }); - break 'blk; - } - } - - return p.unexpected_any(); - } - - // Allow trailing commas. - if p.eat(exp!(CloseParen)) { - break; - } - p.expect(exp!(Comma))?; - } - - Ok(asm_options) -} - -fn parse_clobber_abi<'a>(p: &mut Parser<'a>) -> PResult<'a, Vec<(Symbol, Span)>> { - p.expect(exp!(OpenParen))?; - - if p.eat(exp!(CloseParen)) { - return Err(p.dcx().create_err(errors::NonABI { span: p.token.span })); - } - - let mut new_abis = Vec::new(); - while !p.eat(exp!(CloseParen)) { - match p.parse_str_lit() { - Ok(str_lit) => { - new_abis.push((str_lit.symbol_unescaped, str_lit.span)); - } - Err(opt_lit) => { - let span = opt_lit.map_or(p.token.span, |lit| lit.span); - return Err(p.dcx().create_err(errors::AsmExpectedStringLiteral { span })); - } - }; - - // Allow trailing commas - if p.eat(exp!(CloseParen)) { - break; - } - p.expect(exp!(Comma))?; - } - - Ok(new_abis) -} - -fn parse_reg<'a>(p: &mut Parser<'a>) -> PResult<'a, ast::InlineAsmRegOrRegClass> { - p.expect(exp!(OpenParen))?; - let result = match p.token.uninterpolate().kind { - token::Ident(name, IdentIsRaw::No) => ast::InlineAsmRegOrRegClass::RegClass(name), - token::Literal(token::Lit { kind: token::LitKind::Str, symbol, suffix: _ }) => { - ast::InlineAsmRegOrRegClass::Reg(symbol) - } - _ => { - return Err(p.dcx().create_err(errors::ExpectedRegisterClassOrExplicitRegister { - span: p.token.span, - })); - } - }; - p.bump(); - p.expect(exp!(CloseParen))?; - Ok(result) -} - fn expand_preparsed_asm( ecx: &mut ExtCtxt<'_>, asm_macro: AsmMacro, diff --git a/compiler/rustc_builtin_macros/src/errors.rs b/compiler/rustc_builtin_macros/src/errors.rs index 73e8fed321cb..75d06a8df14c 100644 --- a/compiler/rustc_builtin_macros/src/errors.rs +++ b/compiler/rustc_builtin_macros/src/errors.rs @@ -109,13 +109,6 @@ pub(crate) struct ProcMacro { pub(crate) span: Span, } -#[derive(Diagnostic)] -#[diag(builtin_macros_non_abi)] -pub(crate) struct NonABI { - #[primary_span] - pub(crate) span: Span, -} - #[derive(Diagnostic)] #[diag(builtin_macros_trace_macros)] pub(crate) struct TraceMacros { @@ -788,13 +781,6 @@ pub(crate) struct AsmModifierInvalid { pub(crate) span: Span, } -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_requires_template)] -pub(crate) struct AsmRequiresTemplate { - #[primary_span] - pub(crate) span: Span, -} - #[derive(Diagnostic)] #[diag(builtin_macros_asm_attribute_not_supported)] pub(crate) struct AsmAttributeNotSupported { @@ -802,45 +788,6 @@ pub(crate) struct AsmAttributeNotSupported { pub(crate) span: Span, } -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_expected_comma)] -pub(crate) struct AsmExpectedComma { - #[primary_span] - #[label] - pub(crate) span: Span, -} - -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_expected_string_literal)] -pub(crate) struct AsmExpectedStringLiteral { - #[primary_span] - #[label] - pub(crate) span: Span, -} - -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_underscore_input)] -pub(crate) struct AsmUnderscoreInput { - #[primary_span] - pub(crate) span: Span, -} - -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_sym_no_path)] -pub(crate) struct AsmSymNoPath { - #[primary_span] - pub(crate) span: Span, -} - -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_expected_other)] -pub(crate) struct AsmExpectedOther { - #[primary_span] - #[label(builtin_macros_asm_expected_other)] - pub(crate) span: Span, - pub(crate) is_inline_asm: bool, -} - #[derive(Diagnostic)] #[diag(builtin_macros_asm_duplicate_arg)] pub(crate) struct AsmDuplicateArg { @@ -932,16 +879,6 @@ pub(crate) struct AsmUnsupportedOption { pub(crate) macro_name: &'static str, } -#[derive(Diagnostic)] -#[diag(builtin_macros_asm_unsupported_operand)] -pub(crate) struct AsmUnsupportedOperand<'a> { - #[primary_span] - #[label] - pub(crate) span: Span, - pub(crate) symbol: &'a str, - pub(crate) macro_name: &'static str, -} - #[derive(Diagnostic)] #[diag(builtin_macros_asm_unsupported_clobber_abi)] pub(crate) struct AsmUnsupportedClobberAbi { @@ -964,13 +901,6 @@ pub(crate) struct TestRunnerNargs { pub(crate) span: Span, } -#[derive(Diagnostic)] -#[diag(builtin_macros_expected_register_class_or_explicit_register)] -pub(crate) struct ExpectedRegisterClassOrExplicitRegister { - #[primary_span] - pub(crate) span: Span, -} - #[derive(Diagnostic)] #[diag(builtin_macros_expected_comma_in_list)] pub(crate) struct ExpectedCommaInList { @@ -1034,3 +964,12 @@ pub(crate) struct NonGenericPointee { #[primary_span] pub span: Span, } + +#[derive(Diagnostic)] +#[diag(builtin_macros_expected_other)] +pub(crate) struct AsmExpectedOther { + #[primary_span] + #[label(builtin_macros_expected_other)] + pub(crate) span: Span, + pub(crate) is_inline_asm: bool, +} diff --git a/compiler/rustc_parse/messages.ftl b/compiler/rustc_parse/messages.ftl index a6919afef12c..1f221b4bf78c 100644 --- a/compiler/rustc_parse/messages.ftl +++ b/compiler/rustc_parse/messages.ftl @@ -8,6 +8,30 @@ parse_array_brackets_instead_of_braces = this is a block expression, not an arra parse_array_index_offset_of = array indexing not supported in offset_of +parse_asm_expected_comma = expected token: `,` + .label = expected `,` + +parse_asm_expected_other = expected operand, {$is_inline_asm -> + [false] options + *[true] clobber_abi, options + }, or additional template string + +parse_asm_expected_register_class_or_explicit_register = expected register class or explicit register + +parse_asm_expected_string_literal = expected string literal + .label = not a string literal + +parse_asm_non_abi = at least one abi must be provided as an argument to `clobber_abi` + +parse_asm_requires_template = requires at least a template string argument + +parse_asm_sym_no_path = expected a path for argument to `sym` + +parse_asm_underscore_input = _ cannot be used for input operands + +parse_asm_unsupported_operand = the `{$symbol}` operand cannot be used with `{$macro_name}!` + .label = the `{$symbol}` operand is not meaningful for global-scoped inline assembly, remove it + parse_assignment_else_not_allowed = ... else {"{"} ... {"}"} is not allowed parse_associated_static_item_not_allowed = associated `static` items are not allowed diff --git a/compiler/rustc_parse/src/errors.rs b/compiler/rustc_parse/src/errors.rs index 31a48b22cfee..2dba568a258a 100644 --- a/compiler/rustc_parse/src/errors.rs +++ b/compiler/rustc_parse/src/errors.rs @@ -3525,3 +3525,73 @@ pub(crate) struct MoveSelfModifier { pub insertion_span: Span, pub modifier: String, } + +#[derive(Diagnostic)] +#[diag(parse_asm_unsupported_operand)] +pub(crate) struct AsmUnsupportedOperand<'a> { + #[primary_span] + #[label] + pub(crate) span: Span, + pub(crate) symbol: &'a str, + pub(crate) macro_name: &'static str, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_underscore_input)] +pub(crate) struct AsmUnderscoreInput { + #[primary_span] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_sym_no_path)] +pub(crate) struct AsmSymNoPath { + #[primary_span] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_requires_template)] +pub(crate) struct AsmRequiresTemplate { + #[primary_span] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_expected_comma)] +pub(crate) struct AsmExpectedComma { + #[primary_span] + #[label] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_expected_other)] +pub(crate) struct AsmExpectedOther { + #[primary_span] + #[label(parse_asm_expected_other)] + pub(crate) span: Span, + pub(crate) is_inline_asm: bool, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_non_abi)] +pub(crate) struct NonABI { + #[primary_span] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_expected_string_literal)] +pub(crate) struct AsmExpectedStringLiteral { + #[primary_span] + #[label] + pub(crate) span: Span, +} + +#[derive(Diagnostic)] +#[diag(parse_asm_expected_register_class_or_explicit_register)] +pub(crate) struct ExpectedRegisterClassOrExplicitRegister { + #[primary_span] + pub(crate) span: Span, +} diff --git a/compiler/rustc_parse/src/parser/asm.rs b/compiler/rustc_parse/src/parser/asm.rs new file mode 100644 index 000000000000..d4d0612a3179 --- /dev/null +++ b/compiler/rustc_parse/src/parser/asm.rs @@ -0,0 +1,385 @@ +use rustc_ast::ptr::P; +use rustc_ast::{self as ast, AsmMacro}; +use rustc_span::{Span, Symbol, kw}; + +use super::{ExpKeywordPair, ForceCollect, IdentIsRaw, Trailing, UsePreAttrPos}; +use crate::{PResult, Parser, errors, exp, token}; + +/// An argument to one of the `asm!` macros. The argument is syntactically valid, but is otherwise +/// not validated at all. +pub struct AsmArg { + pub kind: AsmArgKind, + pub attributes: AsmAttrVec, + pub span: Span, +} + +pub enum AsmArgKind { + Template(P), + Operand(Option, ast::InlineAsmOperand), + Options(Vec), + ClobberAbi(Vec<(Symbol, Span)>), +} + +pub struct AsmOption { + pub symbol: Symbol, + pub span: Span, + // A bitset, with only the bit for this option's symbol set. + pub options: ast::InlineAsmOptions, + // Used when suggesting to remove an option. + pub span_with_comma: Span, +} + +/// A parsed list of attributes that is not attached to any item. +/// Used to check whether `asm!` arguments are configured out. +pub struct AsmAttrVec(pub ast::AttrVec); + +impl AsmAttrVec { + fn parse<'a>(p: &mut Parser<'a>) -> PResult<'a, Self> { + let attrs = p.parse_outer_attributes()?; + + p.collect_tokens(None, attrs, ForceCollect::No, |_, attrs| { + Ok((Self(attrs), Trailing::No, UsePreAttrPos::No)) + }) + } +} +impl ast::HasAttrs for AsmAttrVec { + // Follows `ast::Expr`. + const SUPPORTS_CUSTOM_INNER_ATTRS: bool = false; + + fn attrs(&self) -> &[rustc_ast::Attribute] { + &self.0 + } + + fn visit_attrs(&mut self, f: impl FnOnce(&mut rustc_ast::AttrVec)) { + f(&mut self.0) + } +} + +impl ast::HasTokens for AsmAttrVec { + fn tokens(&self) -> Option<&rustc_ast::tokenstream::LazyAttrTokenStream> { + None + } + + fn tokens_mut(&mut self) -> Option<&mut Option> { + None + } +} + +/// Used for better error messages when operand types are used that are not +/// supported by the current macro (e.g. `in` or `out` for `global_asm!`) +/// +/// returns +/// +/// - `Ok(true)` if the current token matches the keyword, and was expected +/// - `Ok(false)` if the current token does not match the keyword +/// - `Err(_)` if the current token matches the keyword, but was not expected +fn eat_operand_keyword<'a>( + p: &mut Parser<'a>, + exp: ExpKeywordPair, + asm_macro: AsmMacro, +) -> PResult<'a, bool> { + if matches!(asm_macro, AsmMacro::Asm) { + Ok(p.eat_keyword(exp)) + } else { + let span = p.token.span; + if p.eat_keyword_noexpect(exp.kw) { + // in gets printed as `r#in` otherwise + let symbol = if exp.kw == kw::In { "in" } else { exp.kw.as_str() }; + Err(p.dcx().create_err(errors::AsmUnsupportedOperand { + span, + symbol, + macro_name: asm_macro.macro_name(), + })) + } else { + Ok(false) + } + } +} + +fn parse_asm_operand<'a>( + p: &mut Parser<'a>, + asm_macro: AsmMacro, +) -> PResult<'a, Option> { + let dcx = p.dcx(); + + Ok(Some(if eat_operand_keyword(p, exp!(In), asm_macro)? { + let reg = parse_reg(p)?; + if p.eat_keyword(exp!(Underscore)) { + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + return Err(err); + } + let expr = p.parse_expr()?; + ast::InlineAsmOperand::In { reg, expr } + } else if eat_operand_keyword(p, exp!(Out), asm_macro)? { + let reg = parse_reg(p)?; + let expr = if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; + ast::InlineAsmOperand::Out { reg, expr, late: false } + } else if eat_operand_keyword(p, exp!(Lateout), asm_macro)? { + let reg = parse_reg(p)?; + let expr = if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; + ast::InlineAsmOperand::Out { reg, expr, late: true } + } else if eat_operand_keyword(p, exp!(Inout), asm_macro)? { + let reg = parse_reg(p)?; + if p.eat_keyword(exp!(Underscore)) { + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + return Err(err); + } + let expr = p.parse_expr()?; + if p.eat(exp!(FatArrow)) { + let out_expr = + if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; + ast::InlineAsmOperand::SplitInOut { reg, in_expr: expr, out_expr, late: false } + } else { + ast::InlineAsmOperand::InOut { reg, expr, late: false } + } + } else if eat_operand_keyword(p, exp!(Inlateout), asm_macro)? { + let reg = parse_reg(p)?; + if p.eat_keyword(exp!(Underscore)) { + let err = dcx.create_err(errors::AsmUnderscoreInput { span: p.token.span }); + return Err(err); + } + let expr = p.parse_expr()?; + if p.eat(exp!(FatArrow)) { + let out_expr = + if p.eat_keyword(exp!(Underscore)) { None } else { Some(p.parse_expr()?) }; + ast::InlineAsmOperand::SplitInOut { reg, in_expr: expr, out_expr, late: true } + } else { + ast::InlineAsmOperand::InOut { reg, expr, late: true } + } + } else if eat_operand_keyword(p, exp!(Label), asm_macro)? { + let block = p.parse_block()?; + ast::InlineAsmOperand::Label { block } + } else if p.eat_keyword(exp!(Const)) { + let anon_const = p.parse_expr_anon_const()?; + ast::InlineAsmOperand::Const { anon_const } + } else if p.eat_keyword(exp!(Sym)) { + let expr = p.parse_expr()?; + let ast::ExprKind::Path(qself, path) = &expr.kind else { + let err = dcx.create_err(errors::AsmSymNoPath { span: expr.span }); + return Err(err); + }; + let sym = + ast::InlineAsmSym { id: ast::DUMMY_NODE_ID, qself: qself.clone(), path: path.clone() }; + ast::InlineAsmOperand::Sym { sym } + } else { + return Ok(None); + })) +} + +// Public for rustfmt. +pub fn parse_asm_args<'a>( + p: &mut Parser<'a>, + sp: Span, + asm_macro: AsmMacro, +) -> PResult<'a, Vec> { + let dcx = p.dcx(); + + if p.token == token::Eof { + return Err(dcx.create_err(errors::AsmRequiresTemplate { span: sp })); + } + + let mut args = Vec::new(); + + let attributes = AsmAttrVec::parse(p)?; + let first_template = p.parse_expr()?; + args.push(AsmArg { + span: first_template.span, + kind: AsmArgKind::Template(first_template), + attributes, + }); + + let mut allow_templates = true; + + while p.token != token::Eof { + if !p.eat(exp!(Comma)) { + if allow_templates { + // After a template string, we always expect *only* a comma... + return Err(dcx.create_err(errors::AsmExpectedComma { span: p.token.span })); + } else { + // ...after that delegate to `expect` to also include the other expected tokens. + return Err(p.expect(exp!(Comma)).err().unwrap()); + } + } + + // Accept trailing commas. + if p.token == token::Eof { + break; + } + + let attributes = AsmAttrVec::parse(p)?; + let span_start = p.token.span; + + // Parse `clobber_abi`. + if p.eat_keyword(exp!(ClobberAbi)) { + allow_templates = false; + + args.push(AsmArg { + kind: AsmArgKind::ClobberAbi(parse_clobber_abi(p)?), + span: span_start.to(p.prev_token.span), + attributes, + }); + + continue; + } + + // Parse `options`. + if p.eat_keyword(exp!(Options)) { + allow_templates = false; + + args.push(AsmArg { + kind: AsmArgKind::Options(parse_options(p, asm_macro)?), + span: span_start.to(p.prev_token.span), + attributes, + }); + + continue; + } + + // Parse operand names. + let name = if p.token.is_ident() && p.look_ahead(1, |t| *t == token::Eq) { + let (ident, _) = p.token.ident().unwrap(); + p.bump(); + p.expect(exp!(Eq))?; + allow_templates = false; + Some(ident.name) + } else { + None + }; + + if let Some(op) = parse_asm_operand(p, asm_macro)? { + allow_templates = false; + + args.push(AsmArg { + span: span_start.to(p.prev_token.span), + kind: AsmArgKind::Operand(name, op), + attributes, + }); + } else if allow_templates { + let template = p.parse_expr()?; + // If it can't possibly expand to a string, provide diagnostics here to include other + // things it could have been. + match template.kind { + ast::ExprKind::Lit(token_lit) + if matches!( + token_lit.kind, + token::LitKind::Str | token::LitKind::StrRaw(_) + ) => {} + ast::ExprKind::MacCall(..) => {} + _ => { + let err = dcx.create_err(errors::AsmExpectedOther { + span: template.span, + is_inline_asm: matches!(asm_macro, AsmMacro::Asm), + }); + return Err(err); + } + } + + args.push(AsmArg { + span: template.span, + kind: AsmArgKind::Template(template), + attributes, + }); + } else { + p.unexpected_any()? + } + } + + Ok(args) +} + +fn parse_options<'a>(p: &mut Parser<'a>, asm_macro: AsmMacro) -> PResult<'a, Vec> { + p.expect(exp!(OpenParen))?; + + let mut asm_options = Vec::new(); + + while !p.eat(exp!(CloseParen)) { + const OPTIONS: [(ExpKeywordPair, ast::InlineAsmOptions); ast::InlineAsmOptions::COUNT] = [ + (exp!(Pure), ast::InlineAsmOptions::PURE), + (exp!(Nomem), ast::InlineAsmOptions::NOMEM), + (exp!(Readonly), ast::InlineAsmOptions::READONLY), + (exp!(PreservesFlags), ast::InlineAsmOptions::PRESERVES_FLAGS), + (exp!(Noreturn), ast::InlineAsmOptions::NORETURN), + (exp!(Nostack), ast::InlineAsmOptions::NOSTACK), + (exp!(MayUnwind), ast::InlineAsmOptions::MAY_UNWIND), + (exp!(AttSyntax), ast::InlineAsmOptions::ATT_SYNTAX), + (exp!(Raw), ast::InlineAsmOptions::RAW), + ]; + + 'blk: { + for (exp, options) in OPTIONS { + // Gives a more accurate list of expected next tokens. + let kw_matched = if asm_macro.is_supported_option(options) { + p.eat_keyword(exp) + } else { + p.eat_keyword_noexpect(exp.kw) + }; + + if kw_matched { + let span = p.prev_token.span; + let span_with_comma = + if p.token == token::Comma { span.to(p.token.span) } else { span }; + + asm_options.push(AsmOption { symbol: exp.kw, span, options, span_with_comma }); + break 'blk; + } + } + + return p.unexpected_any(); + } + + // Allow trailing commas. + if p.eat(exp!(CloseParen)) { + break; + } + p.expect(exp!(Comma))?; + } + + Ok(asm_options) +} + +fn parse_clobber_abi<'a>(p: &mut Parser<'a>) -> PResult<'a, Vec<(Symbol, Span)>> { + p.expect(exp!(OpenParen))?; + + if p.eat(exp!(CloseParen)) { + return Err(p.dcx().create_err(errors::NonABI { span: p.token.span })); + } + + let mut new_abis = Vec::new(); + while !p.eat(exp!(CloseParen)) { + match p.parse_str_lit() { + Ok(str_lit) => { + new_abis.push((str_lit.symbol_unescaped, str_lit.span)); + } + Err(opt_lit) => { + let span = opt_lit.map_or(p.token.span, |lit| lit.span); + return Err(p.dcx().create_err(errors::AsmExpectedStringLiteral { span })); + } + }; + + // Allow trailing commas + if p.eat(exp!(CloseParen)) { + break; + } + p.expect(exp!(Comma))?; + } + + Ok(new_abis) +} + +fn parse_reg<'a>(p: &mut Parser<'a>) -> PResult<'a, ast::InlineAsmRegOrRegClass> { + p.expect(exp!(OpenParen))?; + let result = match p.token.uninterpolate().kind { + token::Ident(name, IdentIsRaw::No) => ast::InlineAsmRegOrRegClass::RegClass(name), + token::Literal(token::Lit { kind: token::LitKind::Str, symbol, suffix: _ }) => { + ast::InlineAsmRegOrRegClass::Reg(symbol) + } + _ => { + return Err(p.dcx().create_err(errors::ExpectedRegisterClassOrExplicitRegister { + span: p.token.span, + })); + } + }; + p.bump(); + p.expect(exp!(CloseParen))?; + Ok(result) +} diff --git a/compiler/rustc_parse/src/parser/mod.rs b/compiler/rustc_parse/src/parser/mod.rs index 968376678f3b..b2e902513672 100644 --- a/compiler/rustc_parse/src/parser/mod.rs +++ b/compiler/rustc_parse/src/parser/mod.rs @@ -1,3 +1,4 @@ +pub mod asm; pub mod attr; mod attr_wrapper; mod diagnostics; diff --git a/src/tools/rustfmt/src/lib.rs b/src/tools/rustfmt/src/lib.rs index 08cda6913b9e..942b42ec5f20 100644 --- a/src/tools/rustfmt/src/lib.rs +++ b/src/tools/rustfmt/src/lib.rs @@ -8,7 +8,6 @@ // N.B. these crates are loaded from the sysroot, so they need extern crate. extern crate rustc_ast; extern crate rustc_ast_pretty; -extern crate rustc_builtin_macros; extern crate rustc_data_structures; extern crate rustc_errors; extern crate rustc_expand; diff --git a/src/tools/rustfmt/src/parse/macros/asm.rs b/src/tools/rustfmt/src/parse/macros/asm.rs index 1a9614bacec8..bfa9c6300c46 100644 --- a/src/tools/rustfmt/src/parse/macros/asm.rs +++ b/src/tools/rustfmt/src/parse/macros/asm.rs @@ -1,5 +1,5 @@ use rustc_ast::ast; -use rustc_builtin_macros::asm::{AsmArg, parse_asm_args}; +use rustc_parse::parser::asm::{AsmArg, parse_asm_args}; use crate::rewrite::RewriteContext; diff --git a/tests/ui/asm/cfg-parse-error.rs b/tests/ui/asm/cfg-parse-error.rs index c66a627ca94f..9b79d16a76dd 100644 --- a/tests/ui/asm/cfg-parse-error.rs +++ b/tests/ui/asm/cfg-parse-error.rs @@ -14,7 +14,7 @@ fn main() { #[cfg(false)] a = out(reg) x, "", - //~^ ERROR expected one of `clobber_abi`, `const` + //~^ ERROR expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` ); asm!( #[cfg(false)] @@ -23,7 +23,8 @@ fn main() { const { 5 }, - "", //~ ERROR expected one of `clobber_abi`, `const` + "", + //~^ ERROR expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` ); asm!( diff --git a/tests/ui/asm/cfg-parse-error.stderr b/tests/ui/asm/cfg-parse-error.stderr index 19c76adee637..8a70d39a43dc 100644 --- a/tests/ui/asm/cfg-parse-error.stderr +++ b/tests/ui/asm/cfg-parse-error.stderr @@ -1,36 +1,39 @@ -error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` +error: expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` --> $DIR/cfg-parse-error.rs:16:13 | LL | a = out(reg) x, - | - expected one of 10 possible tokens + | - expected one of 11 possible tokens LL | "", | ^^ unexpected token -error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` +error: expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` --> $DIR/cfg-parse-error.rs:26:13 | LL | }, - | - expected one of 10 possible tokens + | - expected one of 11 possible tokens LL | "", | ^^ unexpected token error: expected token: `,` - --> $DIR/cfg-parse-error.rs:40:26 + --> $DIR/cfg-parse-error.rs:41:26 | LL | a = out(reg) x, | ^ expected `,` error: this attribute is not supported on assembly - --> $DIR/cfg-parse-error.rs:46:13 + --> $DIR/cfg-parse-error.rs:47:13 | LL | #[rustfmt::skip] | ^^^^^^^^^^^^^^^^ -error: this attribute is not supported on assembly - --> $DIR/cfg-parse-error.rs:52:13 +error: an inner attribute is not permitted in this context + --> $DIR/cfg-parse-error.rs:53:13 | LL | #![rustfmt::skip] | ^^^^^^^^^^^^^^^^^ + | + = note: inner attributes, like `#![no_std]`, annotate the item enclosing them, and are usually found at the beginning of source files + = note: outer attributes, like `#[test]`, annotate the item following them error: aborting due to 5 previous errors diff --git a/tests/ui/asm/parse-error.stderr b/tests/ui/asm/parse-error.stderr index 0bba1fd8d9b6..dff85a601b73 100644 --- a/tests/ui/asm/parse-error.stderr +++ b/tests/ui/asm/parse-error.stderr @@ -176,17 +176,17 @@ LL | asm!("{a}", a = const foo, a = const bar); | = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {1} */"` -error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` +error: expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `""` --> $DIR/parse-error.rs:80:29 | LL | asm!("", options(), ""); - | ^^ expected one of 10 possible tokens + | ^^ expected one of 11 possible tokens -error: expected one of `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `"{}"` +error: expected one of `#`, `clobber_abi`, `const`, `in`, `inlateout`, `inout`, `label`, `lateout`, `options`, `out`, or `sym`, found `"{}"` --> $DIR/parse-error.rs:82:33 | LL | asm!("{}", in(reg) foo, "{}", out(reg) foo); - | ^^^^ expected one of 10 possible tokens + | ^^^^ expected one of 11 possible tokens error: asm template must be a string literal --> $DIR/parse-error.rs:84:14 @@ -340,17 +340,17 @@ LL | global_asm!("{a}", a = const FOO, a = const BAR); | = help: if this argument is intentionally unused, consider using it in an asm comment: `"/* {1} */"` -error: expected one of `clobber_abi`, `const`, `options`, or `sym`, found `""` +error: expected one of `#`, `clobber_abi`, `const`, `options`, or `sym`, found `""` --> $DIR/parse-error.rs:137:28 | LL | global_asm!("", options(), ""); - | ^^ expected one of `clobber_abi`, `const`, `options`, or `sym` + | ^^ expected one of `#`, `clobber_abi`, `const`, `options`, or `sym` -error: expected one of `clobber_abi`, `const`, `options`, or `sym`, found `"{}"` +error: expected one of `#`, `clobber_abi`, `const`, `options`, or `sym`, found `"{}"` --> $DIR/parse-error.rs:139:30 | LL | global_asm!("{}", const FOO, "{}", const FOO); - | ^^^^ expected one of `clobber_abi`, `const`, `options`, or `sym` + | ^^^^ expected one of `#`, `clobber_abi`, `const`, `options`, or `sym` error: asm template must be a string literal --> $DIR/parse-error.rs:141:13 From 3fff727e87099b6cc4daca13f5fd0adf439ad4e7 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Mon, 26 May 2025 10:38:02 +0000 Subject: [PATCH 34/46] Use more detailed spans in dyn compat errors within bodies --- compiler/rustc_hir_analysis/src/collect.rs | 8 ++- .../src/hir_ty_lowering/dyn_compatibility.rs | 5 +- .../src/hir_ty_lowering/mod.rs | 6 +- compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs | 6 +- .../dyn/mut-is-pointer-like.stderr | 4 +- tests/ui/async-await/dyn/works.stderr | 4 +- tests/ui/async-await/dyn/wrong-size.stderr | 4 +- .../in-trait/dyn-compatibility.stderr | 4 +- ...ect-reference-without-parens-suggestion.rs | 1 + ...reference-without-parens-suggestion.stderr | 16 ++++- .../almost-supertrait-associated-type.stderr | 4 +- tests/ui/dyn-compatibility/generics.stderr | 4 +- ...tion-correct-dyn-incompatible-trait.stderr | 4 +- tests/ui/dyn-compatibility/no-static.stderr | 4 +- ...gate-dispatch-from-dyn-missing-impl.stderr | 4 +- .../issue-76535.stderr | 4 +- .../issue-78671.stderr | 4 +- .../issue-79422.stderr | 4 +- .../trait-bounds/span-bug-issue-121597.rs | 1 - .../trait-bounds/span-bug-issue-121597.stderr | 25 ++----- ...ible-trait-in-return-position-dyn-trait.rs | 2 + ...-trait-in-return-position-dyn-trait.stderr | 72 ++++++++++++++++++- .../in-trait/dyn-compatibility.stderr | 4 +- .../in-trait/foreign-dyn-error.stderr | 4 +- tests/ui/issues/issue-18959.rs | 1 + tests/ui/issues/issue-18959.stderr | 22 +++++- tests/ui/issues/issue-50781.stderr | 4 +- tests/ui/issues/issue-58734.rs | 3 +- tests/ui/issues/issue-58734.stderr | 11 +-- .../kindck/kindck-inherited-copy-bound.stderr | 4 +- ...bitrary-self-types-dyn-incompatible.stderr | 4 +- tests/ui/traits/issue-20692.stderr | 4 +- tests/ui/traits/issue-38604.stderr | 4 +- tests/ui/traits/item-privacy.rs | 4 +- tests/ui/traits/item-privacy.stderr | 54 +++----------- .../supertrait-dyn-compatibility.rs | 1 - .../supertrait-dyn-compatibility.stderr | 22 +----- ...onicalize-fresh-infer-vars-issue-103626.rs | 1 - ...alize-fresh-infer-vars-issue-103626.stderr | 24 ++----- tests/ui/traits/object/macro-matcher.stderr | 20 +++--- tests/ui/traits/object/safety.stderr | 4 +- tests/ui/traits/test-2.stderr | 4 +- ...rameter-defaults-referencing-Self-ppaux.rs | 1 - ...ter-defaults-referencing-Self-ppaux.stderr | 21 ++---- tests/ui/wf/wf-dyn-incompatible.stderr | 4 +- 45 files changed, 207 insertions(+), 208 deletions(-) diff --git a/compiler/rustc_hir_analysis/src/collect.rs b/compiler/rustc_hir_analysis/src/collect.rs index f5206d9a0152..8a2edd843f20 100644 --- a/compiler/rustc_hir_analysis/src/collect.rs +++ b/compiler/rustc_hir_analysis/src/collect.rs @@ -31,7 +31,7 @@ use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::intravisit::{self, InferKind, Visitor, VisitorExt, walk_generics}; use rustc_hir::{self as hir, GenericParamKind, HirId, Node, PreciseCapturingArgKind}; use rustc_infer::infer::{InferCtxt, TyCtxtInferExt}; -use rustc_infer::traits::ObligationCause; +use rustc_infer::traits::{DynCompatibilityViolation, ObligationCause}; use rustc_middle::hir::nested_filter; use rustc_middle::query::Providers; use rustc_middle::ty::util::{Discr, IntTypeExt}; @@ -40,7 +40,7 @@ use rustc_middle::{bug, span_bug}; use rustc_span::{DUMMY_SP, Ident, Span, Symbol, kw, sym}; use rustc_trait_selection::error_reporting::traits::suggestions::NextTypeParamName; use rustc_trait_selection::infer::InferCtxtExt; -use rustc_trait_selection::traits::ObligationCtxt; +use rustc_trait_selection::traits::{ObligationCtxt, hir_ty_lowering_dyn_compatibility_violations}; use tracing::{debug, instrument}; use crate::errors; @@ -625,6 +625,10 @@ impl<'tcx> HirTyLowerer<'tcx> for ItemCtxt<'tcx> { (input_tys, output_ty) } + + fn dyn_compatibility_violations(&self, trait_def_id: DefId) -> Vec { + hir_ty_lowering_dyn_compatibility_violations(self.tcx, trait_def_id) + } } /// Synthesize a new lifetime name that doesn't clash with any of the lifetimes already present. 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 9e44b645aca7..fb65c9a8929b 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 @@ -11,7 +11,7 @@ use rustc_middle::ty::{ }; use rustc_span::{ErrorGuaranteed, Span}; use rustc_trait_selection::error_reporting::traits::report_dyn_incompatibility; -use rustc_trait_selection::traits::{self, hir_ty_lowering_dyn_compatibility_violations}; +use rustc_trait_selection::traits; use smallvec::{SmallVec, smallvec}; use tracing::{debug, instrument}; @@ -97,8 +97,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { // to avoid ICEs. for (clause, span) in user_written_bounds { if let Some(trait_pred) = clause.as_trait_clause() { - let violations = - hir_ty_lowering_dyn_compatibility_violations(tcx, trait_pred.def_id()); + let violations = self.dyn_compatibility_violations(trait_pred.def_id()); if !violations.is_empty() { let reported = report_dyn_incompatibility( tcx, 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 6b21bbbfcd80..a5dd17b4d634 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -33,7 +33,7 @@ use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res}; use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::{self as hir, AnonConst, GenericArg, GenericArgs, HirId}; use rustc_infer::infer::{InferCtxt, TyCtxtInferExt}; -use rustc_infer::traits::ObligationCause; +use rustc_infer::traits::{DynCompatibilityViolation, ObligationCause}; use rustc_middle::middle::stability::AllowUnstable; use rustc_middle::mir::interpret::LitToConstInput; use rustc_middle::ty::print::PrintPolyTraitRefExt as _; @@ -200,6 +200,10 @@ pub trait HirTyLowerer<'tcx> { { self } + + /// Performs minimalistic dyn compat checks outside of bodies, but full within bodies. + /// Outside of bodies we could end up in cycles, so we delay most checks to later phases. + fn dyn_compatibility_violations(&self, trait_def_id: DefId) -> Vec; } /// The "qualified self" of an associated item path. diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs index ea0adf16b1a3..cfb25deac0e0 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/mod.rs @@ -14,7 +14,7 @@ use rustc_hir::def_id::{DefId, LocalDefId}; use rustc_hir::{self as hir, HirId, ItemLocalMap}; use rustc_hir_analysis::hir_ty_lowering::{HirTyLowerer, RegionInferReason}; use rustc_infer::infer; -use rustc_infer::traits::Obligation; +use rustc_infer::traits::{DynCompatibilityViolation, Obligation}; use rustc_middle::ty::{self, Const, Ty, TyCtxt, TypeVisitableExt}; use rustc_session::Session; use rustc_span::{self, DUMMY_SP, ErrorGuaranteed, Ident, Span, sym}; @@ -388,6 +388,10 @@ impl<'tcx> HirTyLowerer<'tcx> for FnCtxt<'_, 'tcx> { }; (input_tys, output_ty) } + + fn dyn_compatibility_violations(&self, trait_def_id: DefId) -> Vec { + self.tcx.dyn_compatibility_violations(trait_def_id).to_vec() + } } /// The `ty` representation of a user-provided type. Depending on the use-site diff --git a/tests/ui/async-await/dyn/mut-is-pointer-like.stderr b/tests/ui/async-await/dyn/mut-is-pointer-like.stderr index 9b818a15c29c..6689539ff453 100644 --- a/tests/ui/async-await/dyn/mut-is-pointer-like.stderr +++ b/tests/ui/async-await/dyn/mut-is-pointer-like.stderr @@ -8,10 +8,10 @@ LL | #![feature(async_fn_in_dyn_trait)] = note: `#[warn(incomplete_features)]` on by default error[E0038]: the trait `AsyncTrait` is not dyn compatible - --> $DIR/mut-is-pointer-like.rs:35:16 + --> $DIR/mut-is-pointer-like.rs:35:29 | LL | let x: Pin<&mut dyn AsyncTrait> = f; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `AsyncTrait` is not dyn compatible + | ^^^^^^^^^^^^^^^^^^^^^^^ `AsyncTrait` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/async-await/dyn/works.stderr b/tests/ui/async-await/dyn/works.stderr index 5d2cc385cbd6..338479d8b70a 100644 --- a/tests/ui/async-await/dyn/works.stderr +++ b/tests/ui/async-await/dyn/works.stderr @@ -8,10 +8,10 @@ LL | #![feature(async_fn_in_dyn_trait)] = note: `#[warn(incomplete_features)]` on by default error[E0038]: the trait `AsyncTrait` is not dyn compatible - --> $DIR/works.rs:27:16 + --> $DIR/works.rs:27:21 | LL | let x: &dyn AsyncTrait = &"hello, world!"; - | ^^^^^^^^^^^^^^^ `AsyncTrait` is not dyn compatible + | ^^^^^^^^^^ `AsyncTrait` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/async-await/dyn/wrong-size.stderr b/tests/ui/async-await/dyn/wrong-size.stderr index 930ca571417d..a465f91f62af 100644 --- a/tests/ui/async-await/dyn/wrong-size.stderr +++ b/tests/ui/async-await/dyn/wrong-size.stderr @@ -8,10 +8,10 @@ LL | #![feature(async_fn_in_dyn_trait)] = note: `#[warn(incomplete_features)]` on by default error[E0038]: the trait `AsyncTrait` is not dyn compatible - --> $DIR/wrong-size.rs:21:12 + --> $DIR/wrong-size.rs:21:17 | LL | let x: &dyn AsyncTrait = &"hello, world!"; - | ^^^^^^^^^^^^^^^ `AsyncTrait` is not dyn compatible + | ^^^^^^^^^^ `AsyncTrait` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/async-await/in-trait/dyn-compatibility.stderr b/tests/ui/async-await/in-trait/dyn-compatibility.stderr index 553bcbf89d59..f0c5dc534788 100644 --- a/tests/ui/async-await/in-trait/dyn-compatibility.stderr +++ b/tests/ui/async-await/in-trait/dyn-compatibility.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/dyn-compatibility.rs:9:12 + --> $DIR/dyn-compatibility.rs:9:17 | LL | let x: &dyn Foo = todo!(); - | ^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.rs b/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.rs index 9cd32ffeb6d0..b7470864a30d 100644 --- a/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.rs +++ b/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.rs @@ -4,4 +4,5 @@ fn main() { let _: &Copy + 'static; //~ ERROR expected a path //~^ ERROR is not dyn compatible let _: &'static Copy + 'static; //~ ERROR expected a path + //~^ ERROR is not dyn compatible } diff --git a/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.stderr b/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.stderr index 762b37b9e9d6..57dbc79a0fda 100644 --- a/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.stderr +++ b/tests/ui/did_you_mean/trait-object-reference-without-parens-suggestion.stderr @@ -21,16 +21,26 @@ LL | let _: &'static (Copy + 'static); | + + error[E0038]: the trait `Copy` is not dyn compatible - --> $DIR/trait-object-reference-without-parens-suggestion.rs:4:12 + --> $DIR/trait-object-reference-without-parens-suggestion.rs:4:13 | LL | let _: &Copy + 'static; - | ^^^^^ `Copy` is not dyn compatible + | ^^^^ `Copy` is not dyn compatible | = note: the trait is not dyn compatible because it requires `Self: Sized` = note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit -error: aborting due to 3 previous errors +error[E0038]: the trait `Copy` is not dyn compatible + --> $DIR/trait-object-reference-without-parens-suggestion.rs:6:21 + | +LL | let _: &'static Copy + 'static; + | ^^^^ `Copy` is not dyn compatible + | + = note: the trait is not dyn compatible because it requires `Self: Sized` + = note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit + +error: aborting due to 4 previous errors Some errors have detailed explanations: E0038, E0178. For more information about an error, try `rustc --explain E0038`. diff --git a/tests/ui/dyn-compatibility/almost-supertrait-associated-type.stderr b/tests/ui/dyn-compatibility/almost-supertrait-associated-type.stderr index d3022b5d8cd4..acd6dbe7b2c2 100644 --- a/tests/ui/dyn-compatibility/almost-supertrait-associated-type.stderr +++ b/tests/ui/dyn-compatibility/almost-supertrait-associated-type.stderr @@ -16,10 +16,10 @@ LL | fn transmute(&self, t: T) -> >::Assoc; = help: consider moving `transmute` to another trait error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/almost-supertrait-associated-type.rs:7:27 + --> $DIR/almost-supertrait-associated-type.rs:7:32 | LL | (&PhantomData:: as &dyn Foo).transmute(t) - | ^^^^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^^^^^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/dyn-compatibility/generics.stderr b/tests/ui/dyn-compatibility/generics.stderr index aec51970ebb1..79dccc422448 100644 --- a/tests/ui/dyn-compatibility/generics.stderr +++ b/tests/ui/dyn-compatibility/generics.stderr @@ -31,10 +31,10 @@ LL | fn bar(&self, t: T); = help: consider moving `bar` to another trait error[E0038]: the trait `Bar` is not dyn compatible - --> $DIR/generics.rs:22:10 + --> $DIR/generics.rs:22:15 | LL | t as &dyn Bar - | ^^^^^^^^ `Bar` is not dyn compatible + | ^^^ `Bar` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/dyn-compatibility/mention-correct-dyn-incompatible-trait.stderr b/tests/ui/dyn-compatibility/mention-correct-dyn-incompatible-trait.stderr index 5bc1847ebde5..dd7b31a70c55 100644 --- a/tests/ui/dyn-compatibility/mention-correct-dyn-incompatible-trait.stderr +++ b/tests/ui/dyn-compatibility/mention-correct-dyn-incompatible-trait.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Bar` is not dyn compatible - --> $DIR/mention-correct-dyn-incompatible-trait.rs:19:15 + --> $DIR/mention-correct-dyn-incompatible-trait.rs:19:24 | LL | let test: &mut dyn Bar = &mut thing; - | ^^^^^^^^^^^^ `Bar` is not dyn compatible + | ^^^ `Bar` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/dyn-compatibility/no-static.stderr b/tests/ui/dyn-compatibility/no-static.stderr index 8e4f109c97db..c1d5dd6f562f 100644 --- a/tests/ui/dyn-compatibility/no-static.stderr +++ b/tests/ui/dyn-compatibility/no-static.stderr @@ -23,10 +23,10 @@ LL | fn foo() where Self: Sized {} | +++++++++++++++++ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/no-static.rs:18:12 + --> $DIR/no-static.rs:18:20 | LL | let b: Box = Box::new(Bar); - | ^^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/feature-gates/feature-gate-dispatch-from-dyn-missing-impl.stderr b/tests/ui/feature-gates/feature-gate-dispatch-from-dyn-missing-impl.stderr index 18b99d24083b..c70ab65aa905 100644 --- a/tests/ui/feature-gates/feature-gate-dispatch-from-dyn-missing-impl.stderr +++ b/tests/ui/feature-gates/feature-gate-dispatch-from-dyn-missing-impl.stderr @@ -1,11 +1,11 @@ error[E0038]: the trait `Trait` is not dyn compatible - --> $DIR/feature-gate-dispatch-from-dyn-missing-impl.rs:32:25 + --> $DIR/feature-gate-dispatch-from-dyn-missing-impl.rs:32:33 | LL | fn ptr(self: Ptr); | --------- help: consider changing method `ptr`'s `self` parameter to be `&self`: `&Self` ... LL | Ptr(Box::new(4)) as Ptr; - | ^^^^^^^^^^^^^^ `Trait` is not dyn compatible + | ^^^^^ `Trait` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/generic-associated-types/issue-76535.stderr b/tests/ui/generic-associated-types/issue-76535.stderr index 9bac3318948c..2daf9d817bb3 100644 --- a/tests/ui/generic-associated-types/issue-76535.stderr +++ b/tests/ui/generic-associated-types/issue-76535.stderr @@ -15,10 +15,10 @@ LL | let sub: Box = SubStruct>> = Box::new(SuperS | ++++ error[E0038]: the trait `SuperTrait` is not dyn compatible - --> $DIR/issue-76535.rs:34:14 + --> $DIR/issue-76535.rs:34:22 | LL | let sub: Box> = Box::new(SuperStruct::new(0)); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SuperTrait` is not dyn compatible + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `SuperTrait` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/generic-associated-types/issue-78671.stderr b/tests/ui/generic-associated-types/issue-78671.stderr index c6da137672de..fff061a8ada7 100644 --- a/tests/ui/generic-associated-types/issue-78671.stderr +++ b/tests/ui/generic-associated-types/issue-78671.stderr @@ -15,10 +15,10 @@ LL | Box::new(Family) as &dyn CollectionFamily=usize> | +++ error[E0038]: the trait `CollectionFamily` is not dyn compatible - --> $DIR/issue-78671.rs:5:25 + --> $DIR/issue-78671.rs:5:30 | LL | Box::new(Family) as &dyn CollectionFamily - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `CollectionFamily` is not dyn compatible + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `CollectionFamily` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/generic-associated-types/issue-79422.stderr b/tests/ui/generic-associated-types/issue-79422.stderr index 403cb67adb41..dcf3a9008de5 100644 --- a/tests/ui/generic-associated-types/issue-79422.stderr +++ b/tests/ui/generic-associated-types/issue-79422.stderr @@ -15,10 +15,10 @@ LL | as Box = dyn RefCont<'_, u8>>>; | ++++ error[E0038]: the trait `MapLike` is not dyn compatible - --> $DIR/issue-79422.rs:45:12 + --> $DIR/issue-79422.rs:45:20 | LL | as Box>>; - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `MapLike` is not dyn compatible + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `MapLike` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.rs b/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.rs index 949c49a820b7..cc8134304685 100644 --- a/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.rs +++ b/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.rs @@ -15,5 +15,4 @@ fn main() { //~^ ERROR the trait `Foo` is not dyn compatible needs_bar(x); - //~^ ERROR mismatched types } diff --git a/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.stderr b/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.stderr index 10a9e2c8d24b..d35394a4f669 100644 --- a/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.stderr +++ b/tests/ui/higher-ranked/trait-bounds/span-bug-issue-121597.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/span-bug-issue-121597.rs:14:12 + --> $DIR/span-bug-issue-121597.rs:14:17 | LL | let x: &dyn Foo = &(); - | ^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -13,23 +13,6 @@ LL | trait Foo: for Bar {} | | | this trait is not dyn compatible... -error[E0308]: mismatched types - --> $DIR/span-bug-issue-121597.rs:17:15 - | -LL | needs_bar(x); - | --------- ^ types differ in mutability - | | - | arguments to this function are incorrect - | - = note: expected raw pointer `*mut Type2` - found reference `&dyn Foo` -note: function defined here - --> $DIR/span-bug-issue-121597.rs:11:4 - | -LL | fn needs_bar(_: *mut Type2) {} - | ^^^^^^^^^ ------------- +error: aborting due to 1 previous error -error: aborting due to 2 previous errors - -Some errors have detailed explanations: E0038, E0308. -For more information about an error, try `rustc --explain E0038`. +For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.rs b/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.rs index c3dc417b1873..accd173ce235 100644 --- a/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.rs +++ b/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.rs @@ -21,6 +21,8 @@ impl DynIncompatible for B { fn car() -> dyn DynIncompatible { //~ ERROR the trait `DynIncompatible` is not dyn compatible //~^ ERROR return type cannot be a trait object without pointer indirection +//~| ERROR the trait `DynIncompatible` is not dyn compatible +//~| ERROR the trait `DynIncompatible` is not dyn compatible if true { return A; } diff --git a/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.stderr b/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.stderr index a230090eb00e..a8787a01a6f6 100644 --- a/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.stderr +++ b/tests/ui/impl-trait/dyn-incompatible-trait-in-return-position-dyn-trait.stderr @@ -41,6 +41,7 @@ help: alternatively, box the return type, and wrap all of the returned values in | LL ~ fn car() -> Box { LL | +... LL | if true { LL ~ return Box::new(A); LL | } @@ -48,7 +49,7 @@ LL ~ Box::new(B) | error[E0038]: the trait `DynIncompatible` is not dyn compatible - --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:30:17 + --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:32:17 | LL | fn cat() -> Box { | ^^^^^^^^^^^^^^^^^^^ `DynIncompatible` is not dyn compatible @@ -75,7 +76,74 @@ help: alternatively, consider constraining `foo` so it does not apply to trait o LL | fn foo() -> Self where Self: Sized; | +++++++++++++++++ -error: aborting due to 3 previous errors +error[E0038]: the trait `DynIncompatible` is not dyn compatible + --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:22:17 + | +LL | fn car() -> dyn DynIncompatible { + | ^^^^^^^^^^^^^^^ `DynIncompatible` is not dyn compatible + | +note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit + --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8 + | +LL | trait DynIncompatible { + | --------------- this trait is not dyn compatible... +LL | fn foo() -> Self; + | ^^^ ...because associated function `foo` has no `self` parameter + = help: the following types implement `DynIncompatible`: + A + B + consider defining an enum where each variant holds one of these types, + implementing `DynIncompatible` for this new enum and using it instead +help: consider using an opaque type instead + | +LL - fn car() -> dyn DynIncompatible { +LL + fn car() -> impl DynIncompatible { + | +help: consider turning `foo` into a method by giving it a `&self` argument + | +LL | fn foo(&self) -> Self; + | +++++ +help: alternatively, consider constraining `foo` so it does not apply to trait objects + | +LL | fn foo() -> Self where Self: Sized; + | +++++++++++++++++ + +error[E0038]: the trait `DynIncompatible` is not dyn compatible + --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:22:17 + | +LL | fn car() -> dyn DynIncompatible { + | ^^^^^^^^^^^^^^^ `DynIncompatible` is not dyn compatible + | +note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit + --> $DIR/dyn-incompatible-trait-in-return-position-dyn-trait.rs:4:8 + | +LL | trait DynIncompatible { + | --------------- this trait is not dyn compatible... +LL | fn foo() -> Self; + | ^^^ ...because associated function `foo` has no `self` parameter + = help: the following types implement `DynIncompatible`: + A + B + consider defining an enum where each variant holds one of these types, + implementing `DynIncompatible` for this new enum and using it instead + = note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no` +help: consider using an opaque type instead + | +LL - fn car() -> dyn DynIncompatible { +LL + fn car() -> impl DynIncompatible { + | +help: consider turning `foo` into a method by giving it a `&self` argument + | +LL | fn foo(&self) -> Self; + | +++++ +help: alternatively, consider constraining `foo` so it does not apply to trait objects + | +LL | fn foo() -> Self where Self: Sized; + | +++++++++++++++++ + +error: aborting due to 5 previous errors Some errors have detailed explanations: E0038, E0746. For more information about an error, try `rustc --explain E0038`. diff --git a/tests/ui/impl-trait/in-trait/dyn-compatibility.stderr b/tests/ui/impl-trait/in-trait/dyn-compatibility.stderr index d65ed6bbcdac..8cdb38085331 100644 --- a/tests/ui/impl-trait/in-trait/dyn-compatibility.stderr +++ b/tests/ui/impl-trait/in-trait/dyn-compatibility.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/dyn-compatibility.rs:14:33 + --> $DIR/dyn-compatibility.rs:14:41 | LL | let i = Box::new(42_u32) as Box; - | ^^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/impl-trait/in-trait/foreign-dyn-error.stderr b/tests/ui/impl-trait/in-trait/foreign-dyn-error.stderr index 29235ca78a50..68ac765a3c1e 100644 --- a/tests/ui/impl-trait/in-trait/foreign-dyn-error.stderr +++ b/tests/ui/impl-trait/in-trait/foreign-dyn-error.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/foreign-dyn-error.rs:6:12 + --> $DIR/foreign-dyn-error.rs:6:17 | LL | let _: &dyn rpitit::Foo = todo!(); - | ^^^^^^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^^^^^^^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/issues/issue-18959.rs b/tests/ui/issues/issue-18959.rs index 4fe669adcdaf..415fe818f530 100644 --- a/tests/ui/issues/issue-18959.rs +++ b/tests/ui/issues/issue-18959.rs @@ -18,4 +18,5 @@ fn main() { let test: &dyn Bar = &mut thing; //~^ ERROR E0038 foo(test); + //~^ ERROR E0038 } diff --git a/tests/ui/issues/issue-18959.stderr b/tests/ui/issues/issue-18959.stderr index 5345046ba6d3..df47d50a0197 100644 --- a/tests/ui/issues/issue-18959.stderr +++ b/tests/ui/issues/issue-18959.stderr @@ -15,10 +15,10 @@ LL | pub trait Bar: Foo { } = help: consider moving `foo` to another trait error[E0038]: the trait `Bar` is not dyn compatible - --> $DIR/issue-18959.rs:18:15 + --> $DIR/issue-18959.rs:18:20 | LL | let test: &dyn Bar = &mut thing; - | ^^^^^^^^ `Bar` is not dyn compatible + | ^^^ `Bar` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -30,6 +30,22 @@ LL | pub trait Bar: Foo { } | --- this trait is not dyn compatible... = help: consider moving `foo` to another trait -error: aborting due to 2 previous errors +error[E0038]: the trait `Bar` is not dyn compatible + --> $DIR/issue-18959.rs:20:9 + | +LL | foo(test); + | ^^^^ `Bar` is not dyn compatible + | +note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit + --> $DIR/issue-18959.rs:1:20 + | +LL | pub trait Foo { fn foo(&self, ext_thing: &T); } + | ^^^ ...because method `foo` has generic type parameters +LL | pub trait Bar: Foo { } + | --- this trait is not dyn compatible... + = help: consider moving `foo` to another trait + +error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/issues/issue-50781.stderr b/tests/ui/issues/issue-50781.stderr index be6519429a51..4ba3166b6c58 100644 --- a/tests/ui/issues/issue-50781.stderr +++ b/tests/ui/issues/issue-50781.stderr @@ -16,10 +16,10 @@ LL | fn foo(&self) where Self: Trait; = help: only type `()` implements `X`; consider using it directly instead. error[E0038]: the trait `X` is not dyn compatible - --> $DIR/issue-50781.rs:16:6 + --> $DIR/issue-50781.rs:16:10 | LL | ::foo(&()); - | ^^^^^ `X` is not dyn compatible + | ^ `X` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/issues/issue-58734.rs b/tests/ui/issues/issue-58734.rs index ee23be87b6b7..e5b371f5530d 100644 --- a/tests/ui/issues/issue-58734.rs +++ b/tests/ui/issues/issue-58734.rs @@ -18,8 +18,7 @@ fn main() { Trait::exists(()); // no dyn-compatibility error Trait::nonexistent(()); - //~^ ERROR no function or associated item named `nonexistent` found - //~| WARN trait objects without an explicit `dyn` are deprecated + //~^ WARN trait objects without an explicit `dyn` are deprecated //~| WARN this is accepted in the current edition //~| ERROR the trait `Trait` is not dyn compatible } diff --git a/tests/ui/issues/issue-58734.stderr b/tests/ui/issues/issue-58734.stderr index c4624cecc621..e5dad000b510 100644 --- a/tests/ui/issues/issue-58734.stderr +++ b/tests/ui/issues/issue-58734.stderr @@ -37,13 +37,6 @@ help: alternatively, consider constraining `dyn_incompatible` so it does not app LL | fn dyn_incompatible() -> Self where Self: Sized; | +++++++++++++++++ -error[E0599]: no function or associated item named `nonexistent` found for trait object `dyn Trait` in the current scope - --> $DIR/issue-58734.rs:20:12 - | -LL | Trait::nonexistent(()); - | ^^^^^^^^^^^ function or associated item not found in `dyn Trait` +error: aborting due to 1 previous error; 1 warning emitted -error: aborting due to 2 previous errors; 1 warning emitted - -Some errors have detailed explanations: E0038, E0599. -For more information about an error, try `rustc --explain E0038`. +For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/kindck/kindck-inherited-copy-bound.stderr b/tests/ui/kindck/kindck-inherited-copy-bound.stderr index 05d31f48f47a..c15aabacddd1 100644 --- a/tests/ui/kindck/kindck-inherited-copy-bound.stderr +++ b/tests/ui/kindck/kindck-inherited-copy-bound.stderr @@ -20,10 +20,10 @@ LL | fn take_param(foo: &T) { } | ^^^ required by this bound in `take_param` error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/kindck-inherited-copy-bound.rs:23:19 + --> $DIR/kindck-inherited-copy-bound.rs:23:24 | LL | let z = &x as &dyn Foo; - | ^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/self/arbitrary-self-types-dyn-incompatible.stderr b/tests/ui/self/arbitrary-self-types-dyn-incompatible.stderr index 977ccecea064..fe4802c9b3a4 100644 --- a/tests/ui/self/arbitrary-self-types-dyn-incompatible.stderr +++ b/tests/ui/self/arbitrary-self-types-dyn-incompatible.stderr @@ -1,11 +1,11 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/arbitrary-self-types-dyn-incompatible.rs:29:32 + --> $DIR/arbitrary-self-types-dyn-incompatible.rs:29:39 | LL | fn foo(self: &Rc) -> usize; | --------- help: consider changing method `foo`'s `self` parameter to be `&self`: `&Self` ... LL | let x = Rc::new(5usize) as Rc; - | ^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/traits/issue-20692.stderr b/tests/ui/traits/issue-20692.stderr index e902a582cc70..d4a18899dcbb 100644 --- a/tests/ui/traits/issue-20692.stderr +++ b/tests/ui/traits/issue-20692.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Array` is not dyn compatible - --> $DIR/issue-20692.rs:6:5 + --> $DIR/issue-20692.rs:6:10 | LL | &dyn Array; - | ^^^^^^^^^^ `Array` is not dyn compatible + | ^^^^^ `Array` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/traits/issue-38604.stderr b/tests/ui/traits/issue-38604.stderr index 0455230b1aa3..0f39dc536eb8 100644 --- a/tests/ui/traits/issue-38604.stderr +++ b/tests/ui/traits/issue-38604.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/issue-38604.rs:14:13 + --> $DIR/issue-38604.rs:14:21 | LL | let _f: Box = - | ^^^^^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/traits/item-privacy.rs b/tests/ui/traits/item-privacy.rs index cdfd667a6f12..9f75e6e4c123 100644 --- a/tests/ui/traits/item-privacy.rs +++ b/tests/ui/traits/item-privacy.rs @@ -99,9 +99,7 @@ fn check_assoc_const() { S::C; // OK // A, B, C are resolved as inherent items, their traits don't need to be in scope ::A; - //~^ ERROR associated constant `A` is private - //~| ERROR the trait `assoc_const::C` is not dyn compatible - //~| ERROR the trait `assoc_const::C` is not dyn compatible + //~^ ERROR the trait `assoc_const::C` is not dyn compatible ::B; //~^ ERROR the trait `assoc_const::C` is not dyn compatible C::C; // OK diff --git a/tests/ui/traits/item-privacy.stderr b/tests/ui/traits/item-privacy.stderr index 1d3d8cb98437..bf59cd079a5a 100644 --- a/tests/ui/traits/item-privacy.stderr +++ b/tests/ui/traits/item-privacy.stderr @@ -131,44 +131,10 @@ LL + use assoc_const::B; | error[E0038]: the trait `assoc_const::C` is not dyn compatible - --> $DIR/item-privacy.rs:101:6 + --> $DIR/item-privacy.rs:101:10 | LL | ::A; - | ^^^^^ `assoc_const::C` is not dyn compatible - | -note: for a trait to be dyn compatible it needs to allow building a vtable - for more information, visit - --> $DIR/item-privacy.rs:25:15 - | -LL | const A: u8 = 0; - | ^ ...because it contains this associated `const` -... -LL | const B: u8 = 0; - | ^ ...because it contains this associated `const` -... -LL | pub trait C: A + B { - | - this trait is not dyn compatible... -LL | const C: u8 = 0; - | ^ ...because it contains this associated `const` - = help: consider moving `C` to another trait - = help: consider moving `A` to another trait - = help: consider moving `B` to another trait - = help: only type `S` implements `assoc_const::C`; consider using it directly instead. - -error[E0624]: associated constant `A` is private - --> $DIR/item-privacy.rs:101:14 - | -LL | const A: u8 = 0; - | ----------- private associated constant defined here -... -LL | ::A; - | ^ private associated constant - -error[E0038]: the trait `assoc_const::C` is not dyn compatible - --> $DIR/item-privacy.rs:101:5 - | -LL | ::A; - | ^^^^^^^^^^ `assoc_const::C` is not dyn compatible + | ^ `assoc_const::C` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -190,10 +156,10 @@ LL | const C: u8 = 0; = help: only type `S` implements `assoc_const::C`; consider using it directly instead. error[E0038]: the trait `assoc_const::C` is not dyn compatible - --> $DIR/item-privacy.rs:105:5 + --> $DIR/item-privacy.rs:103:10 | LL | ::B; - | ^^^^^^^^^^ `assoc_const::C` is not dyn compatible + | ^ `assoc_const::C` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -215,7 +181,7 @@ LL | const C: u8 = 0; = help: only type `S` implements `assoc_const::C`; consider using it directly instead. error[E0223]: ambiguous associated type - --> $DIR/item-privacy.rs:118:12 + --> $DIR/item-privacy.rs:116:12 | LL | let _: S::A; | ^^^^ @@ -227,7 +193,7 @@ LL + let _: ::A; | error[E0223]: ambiguous associated type - --> $DIR/item-privacy.rs:119:12 + --> $DIR/item-privacy.rs:117:12 | LL | let _: S::B; | ^^^^ @@ -239,7 +205,7 @@ LL + let _: ::B; | error[E0223]: ambiguous associated type - --> $DIR/item-privacy.rs:120:12 + --> $DIR/item-privacy.rs:118:12 | LL | let _: S::C; | ^^^^ @@ -251,7 +217,7 @@ LL + let _: ::C; | error[E0624]: associated type `A` is private - --> $DIR/item-privacy.rs:122:12 + --> $DIR/item-privacy.rs:120:12 | LL | type A = u8; | ------ the associated type is defined here @@ -260,7 +226,7 @@ LL | let _: T::A; | ^^^^ private associated type error[E0624]: associated type `A` is private - --> $DIR/item-privacy.rs:131:9 + --> $DIR/item-privacy.rs:129:9 | LL | type A = u8; | ------ the associated type is defined here @@ -268,7 +234,7 @@ LL | type A = u8; LL | A = u8, | ^^^^^^ private associated type -error: aborting due to 17 previous errors +error: aborting due to 15 previous errors Some errors have detailed explanations: E0038, E0223, E0599, E0624. For more information about an error, try `rustc --explain E0038`. diff --git a/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.rs b/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.rs index 2945b28eec36..96345732f0f6 100644 --- a/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.rs +++ b/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.rs @@ -19,5 +19,4 @@ fn main() { let x: &dyn Foo = &(); //~^ ERROR the trait `Foo` is not dyn compatible needs_bar(x); - //~^ ERROR the trait `Foo` is not dyn compatible } diff --git a/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.stderr b/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.stderr index 2cf6329d0a10..aead19c45272 100644 --- a/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.stderr +++ b/tests/ui/traits/non_lifetime_binders/supertrait-dyn-compatibility.stderr @@ -8,10 +8,10 @@ LL | #![feature(non_lifetime_binders)] = note: `#[warn(incomplete_features)]` on by default error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/supertrait-dyn-compatibility.rs:19:12 + --> $DIR/supertrait-dyn-compatibility.rs:19:17 | LL | let x: &dyn Foo = &(); - | ^^^^^^^^ `Foo` is not dyn compatible + | ^^^ `Foo` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -23,22 +23,6 @@ LL | trait Foo: for Bar {} | this trait is not dyn compatible... = help: only type `()` implements `Foo`; consider using it directly instead. -error[E0038]: the trait `Foo` is not dyn compatible - --> $DIR/supertrait-dyn-compatibility.rs:21:5 - | -LL | needs_bar(x); - | ^^^^^^^^^ `Foo` is not dyn compatible - | -note: for a trait to be dyn compatible it needs to allow building a vtable - for more information, visit - --> $DIR/supertrait-dyn-compatibility.rs:4:12 - | -LL | trait Foo: for Bar {} - | --- ^^^^^^^^^^^^^ ...because where clause cannot reference non-lifetime `for<...>` variables - | | - | this trait is not dyn compatible... - = help: only type `()` implements `Foo`; consider using it directly instead. - -error: aborting due to 2 previous errors; 1 warning emitted +error: aborting due to 1 previous error; 1 warning emitted For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.rs b/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.rs index 415b050b9d69..9ac3b84dc122 100644 --- a/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.rs +++ b/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.rs @@ -9,7 +9,6 @@ trait Try { fn w<'a, T: 'a, F: Fn(&'a T)>() { let b: &dyn FromResidual = &(); //~^ ERROR: the trait `FromResidual` is not dyn compatible - //~| ERROR the type parameter `R` must be explicitly specified } fn main() {} diff --git a/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.stderr b/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.stderr index 0f872dfba5d5..707aa9e9713d 100644 --- a/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.stderr +++ b/tests/ui/traits/object/canonicalize-fresh-infer-vars-issue-103626.stderr @@ -1,23 +1,8 @@ -error[E0393]: the type parameter `R` must be explicitly specified +error[E0038]: the trait `FromResidual` is not dyn compatible --> $DIR/canonicalize-fresh-infer-vars-issue-103626.rs:10:17 | -LL | trait FromResidual::Residual> { - | ----------------------------------------------- type parameter `R` must be specified for this -... LL | let b: &dyn FromResidual = &(); - | ^^^^^^^^^^^^ - | - = note: because the parameter default references `Self`, the parameter must be specified on the object type -help: set the type parameter to the desired type - | -LL | let b: &dyn FromResidual = &(); - | +++ - -error[E0038]: the trait `FromResidual` is not dyn compatible - --> $DIR/canonicalize-fresh-infer-vars-issue-103626.rs:10:12 - | -LL | let b: &dyn FromResidual = &(); - | ^^^^^^^^^^^^^^^^^ `FromResidual` is not dyn compatible + | ^^^^^^^^^^^^ `FromResidual` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -36,7 +21,6 @@ help: alternatively, consider constraining `from_residual` so it does not apply LL | fn from_residual(residual: R) -> Self where Self: Sized; | +++++++++++++++++ -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -Some errors have detailed explanations: E0038, E0393. -For more information about an error, try `rustc --explain E0038`. +For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/traits/object/macro-matcher.stderr b/tests/ui/traits/object/macro-matcher.stderr index 3c668ce99c7f..94d5c189a436 100644 --- a/tests/ui/traits/object/macro-matcher.stderr +++ b/tests/ui/traits/object/macro-matcher.stderr @@ -1,19 +1,19 @@ +error[E0038]: the trait `Copy` is not dyn compatible + --> $DIR/macro-matcher.rs:8:12 + | +LL | m!(dyn Copy + Send + 'static); + | ^^^^ `Copy` is not dyn compatible + | + = note: the trait is not dyn compatible because it requires `Self: Sized` + = note: for a trait to be dyn compatible it needs to allow building a vtable + for more information, visit + error[E0224]: at least one trait is required for an object type --> $DIR/macro-matcher.rs:11:8 | LL | m!(dyn 'static +); | ^^^^^^^^^^^^^ -error[E0038]: the trait `Copy` is not dyn compatible - --> $DIR/macro-matcher.rs:8:8 - | -LL | m!(dyn Copy + Send + 'static); - | ^^^^^^^^^^^^^^^^^^^^^^^^^ `Copy` is not dyn compatible - | - = note: the trait is not dyn compatible because it requires `Self: Sized` - = note: for a trait to be dyn compatible it needs to allow building a vtable - for more information, visit - error: aborting due to 2 previous errors Some errors have detailed explanations: E0038, E0224. diff --git a/tests/ui/traits/object/safety.stderr b/tests/ui/traits/object/safety.stderr index a3671d90d283..c5637b435262 100644 --- a/tests/ui/traits/object/safety.stderr +++ b/tests/ui/traits/object/safety.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `Tr` is not dyn compatible - --> $DIR/safety.rs:15:12 + --> $DIR/safety.rs:15:17 | LL | let _: &dyn Tr = &St; - | ^^^^^^^ `Tr` is not dyn compatible + | ^^ `Tr` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/traits/test-2.stderr b/tests/ui/traits/test-2.stderr index e4e39e9194ca..6a8109281a85 100644 --- a/tests/ui/traits/test-2.stderr +++ b/tests/ui/traits/test-2.stderr @@ -27,10 +27,10 @@ LL | trait bar { fn dup(&self) -> Self; fn blah(&self); } | ^^^^ - error[E0038]: the trait `bar` is not dyn compatible - --> $DIR/test-2.rs:13:22 + --> $DIR/test-2.rs:13:30 | LL | (Box::new(10) as Box).dup(); - | ^^^^^^^^^^^^ `bar` is not dyn compatible + | ^^^ `bar` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit diff --git a/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.rs b/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.rs index 444453dc6943..b877ef569f6d 100644 --- a/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.rs +++ b/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.rs @@ -13,5 +13,4 @@ fn main() { let x: i32 = 5; let y = x as dyn MyAdd; //~^ ERROR E0038 - //~| ERROR cast to unsized type: `i32` as `dyn MyAdd` } diff --git a/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.stderr b/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.stderr index eea2e75a2382..33478740d65c 100644 --- a/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.stderr +++ b/tests/ui/type/type-parameter-defaults-referencing-Self-ppaux.stderr @@ -1,20 +1,8 @@ -error[E0620]: cast to unsized type: `i32` as `dyn MyAdd` - --> $DIR/type-parameter-defaults-referencing-Self-ppaux.rs:14:13 - | -LL | let y = x as dyn MyAdd; - | ^^^^^^^^^^^^^^^^^^^ - | -help: consider using a box or reference as appropriate - --> $DIR/type-parameter-defaults-referencing-Self-ppaux.rs:14:13 - | -LL | let y = x as dyn MyAdd; - | ^ - error[E0038]: the trait `MyAdd` is not dyn compatible - --> $DIR/type-parameter-defaults-referencing-Self-ppaux.rs:14:18 + --> $DIR/type-parameter-defaults-referencing-Self-ppaux.rs:14:22 | LL | let y = x as dyn MyAdd; - | ^^^^^^^^^^^^^^ `MyAdd` is not dyn compatible + | ^^^^^^^^^^ `MyAdd` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit @@ -25,7 +13,6 @@ LL | trait MyAdd { fn add(&self, other: &Rhs) -> Self; } = help: consider moving `add` to another trait = help: only type `i32` implements `MyAdd`; consider using it directly instead. -error: aborting due to 2 previous errors +error: aborting due to 1 previous error -Some errors have detailed explanations: E0038, E0620. -For more information about an error, try `rustc --explain E0038`. +For more information about this error, try `rustc --explain E0038`. diff --git a/tests/ui/wf/wf-dyn-incompatible.stderr b/tests/ui/wf/wf-dyn-incompatible.stderr index e61b37d92932..2ba17b7aaefc 100644 --- a/tests/ui/wf/wf-dyn-incompatible.stderr +++ b/tests/ui/wf/wf-dyn-incompatible.stderr @@ -1,8 +1,8 @@ error[E0038]: the trait `A` is not dyn compatible - --> $DIR/wf-dyn-incompatible.rs:9:13 + --> $DIR/wf-dyn-incompatible.rs:9:18 | LL | let _x: &dyn A; - | ^^^^^^ `A` is not dyn compatible + | ^ `A` is not dyn compatible | note: for a trait to be dyn compatible it needs to allow building a vtable for more information, visit From dd148a06961e4e19a8d1788ed8c759e0394d48c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Fabian=20Gr=C3=BCnbichler?= Date: Tue, 27 May 2025 10:39:32 +0200 Subject: [PATCH 35/46] test: convert version_check ui test to run-make MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit else it breaks with `rpath=false`. Signed-off-by: Fabian Grünbichler --- tests/run-make/version-check/rmake.rs | 13 +++++++++++++ tests/ui/feature-gates/version_check.rs | 17 ----------------- 2 files changed, 13 insertions(+), 17 deletions(-) create mode 100644 tests/run-make/version-check/rmake.rs delete mode 100644 tests/ui/feature-gates/version_check.rs diff --git a/tests/run-make/version-check/rmake.rs b/tests/run-make/version-check/rmake.rs new file mode 100644 index 000000000000..e6a14d2e95c3 --- /dev/null +++ b/tests/run-make/version-check/rmake.rs @@ -0,0 +1,13 @@ +use run_make_support::bare_rustc; + +fn main() { + let signalled_version = "Ceci n'est pas une rustc"; + let rustc_out = bare_rustc() + .env("RUSTC_OVERRIDE_VERSION_STRING", signalled_version) + .arg("--version") + .run() + .stdout_utf8(); + + let version = rustc_out.strip_prefix("rustc ").unwrap().trim_end(); + assert_eq!(version, signalled_version); +} diff --git a/tests/ui/feature-gates/version_check.rs b/tests/ui/feature-gates/version_check.rs deleted file mode 100644 index e212dc74fd12..000000000000 --- a/tests/ui/feature-gates/version_check.rs +++ /dev/null @@ -1,17 +0,0 @@ -//@ run-pass -//@ only-linux -//@ only-x86 -// FIXME: this should be more like //@ needs-subprocesses -use std::process::Command; - -fn main() { - let signalled_version = "Ceci n'est pas une rustc"; - let version = Command::new(std::env::var_os("RUSTC").unwrap()) - .env("RUSTC_OVERRIDE_VERSION_STRING", signalled_version) - .arg("--version") - .output() - .unwrap() - .stdout; - let version = std::str::from_utf8(&version).unwrap().strip_prefix("rustc ").unwrap().trim_end(); - assert_eq!(version, signalled_version); -} From 89c21f7c1af83cfbd862e08e716026f1c357a316 Mon Sep 17 00:00:00 2001 From: Nicholas Nethercote Date: Tue, 20 May 2025 08:47:29 +1000 Subject: [PATCH 36/46] Remove out-of-date `noop_*` names. `mut_visit.rs` has a single function with a `noop_` prefix: `noop_filter_map_expr`. This commit renames as `walk_filter_map_expr` which is consistent with other functions in this file. The commit also removes out-of-date comments that refer to `noop_*` methods. --- compiler/rustc_ast/src/mut_visit.rs | 26 ++++------------------- compiler/rustc_expand/src/placeholders.rs | 2 +- 2 files changed, 5 insertions(+), 23 deletions(-) diff --git a/compiler/rustc_ast/src/mut_visit.rs b/compiler/rustc_ast/src/mut_visit.rs index 6770fd5a4aae..74dcdd86fcbf 100644 --- a/compiler/rustc_ast/src/mut_visit.rs +++ b/compiler/rustc_ast/src/mut_visit.rs @@ -40,12 +40,6 @@ pub trait MutVisitor: Sized { // fn flat_map_t(&mut self, t: T) -> SmallVec<[T; 1]>; // rare // fn filter_map_t(&mut self, t: T) -> Option; // rarest // - // Any additions to this trait should happen in form of a call to a public - // `noop_*` function that only calls out to the visitor again, not other - // `noop_*` functions. This is a necessary API workaround to the problem of - // not being able to call out to the super default method in an overridden - // default method. - // // When writing these methods, it is better to use destructuring like this: // // fn visit_abc(&mut self, ABC { a, b, c: _ }: &mut ABC) { @@ -179,7 +173,7 @@ pub trait MutVisitor: Sized { } fn filter_map_expr(&mut self, e: P) -> Option> { - noop_filter_map_expr(self, e) + walk_filter_map_expr(self, e) } fn visit_generic_arg(&mut self, arg: &mut GenericArg) { @@ -381,14 +375,11 @@ super::common_visitor_and_walkers!((mut) MutVisitor); /// Use a map-style function (`FnOnce(T) -> T`) to overwrite a `&mut T`. Useful /// when using a `flat_map_*` or `filter_map_*` method within a `visit_` /// method. -// -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. pub fn visit_clobber(t: &mut T, f: impl FnOnce(T) -> T) { let old_t = std::mem::replace(t, T::dummy()); *t = f(old_t); } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. #[inline] fn visit_vec(elems: &mut Vec, mut visit_elem: F) where @@ -399,7 +390,6 @@ where } } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. #[inline] fn visit_thin_vec(elems: &mut ThinVec, mut visit_elem: F) where @@ -410,7 +400,6 @@ where } } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. #[inline] fn visit_opt(opt: &mut Option, mut visit_elem: F) where @@ -421,25 +410,21 @@ where } } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. fn visit_attrs(vis: &mut T, attrs: &mut AttrVec) { for attr in attrs.iter_mut() { vis.visit_attribute(attr); } } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. #[allow(unused)] fn visit_exprs(vis: &mut T, exprs: &mut Vec>) { exprs.flat_map_in_place(|expr| vis.filter_map_expr(expr)) } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. fn visit_thin_exprs(vis: &mut T, exprs: &mut ThinVec>) { exprs.flat_map_in_place(|expr| vis.filter_map_expr(expr)) } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. fn visit_attr_args(vis: &mut T, args: &mut AttrArgs) { match args { AttrArgs::Empty => {} @@ -451,7 +436,6 @@ fn visit_attr_args(vis: &mut T, args: &mut AttrArgs) { } } -// No `noop_` prefix because there isn't a corresponding method in `MutVisitor`. fn visit_delim_args(vis: &mut T, args: &mut DelimArgs) { let DelimArgs { dspan, delim: _, tokens: _ } = args; let DelimSpan { open, close } = dspan; @@ -1500,11 +1484,9 @@ pub fn walk_expr(vis: &mut T, Expr { kind, id, span, attrs, token vis.visit_span(span); } -pub fn noop_filter_map_expr(vis: &mut T, mut e: P) -> Option> { - Some({ - vis.visit_expr(&mut e); - e - }) +pub fn walk_filter_map_expr(vis: &mut T, mut e: P) -> Option> { + vis.visit_expr(&mut e); + Some(e) } pub fn walk_flat_map_stmt( diff --git a/compiler/rustc_expand/src/placeholders.rs b/compiler/rustc_expand/src/placeholders.rs index 0136292decbc..3dcb20c8c768 100644 --- a/compiler/rustc_expand/src/placeholders.rs +++ b/compiler/rustc_expand/src/placeholders.rs @@ -349,7 +349,7 @@ impl MutVisitor for PlaceholderExpander { fn filter_map_expr(&mut self, expr: P) -> Option> { match expr.kind { ast::ExprKind::MacCall(_) => self.remove(expr.id).make_opt_expr(), - _ => noop_filter_map_expr(self, expr), + _ => walk_filter_map_expr(self, expr), } } From 731499400852de3a032268d3f18d0c30aa64a9e7 Mon Sep 17 00:00:00 2001 From: MarcoIeni <11428655+MarcoIeni@users.noreply.github.com> Date: Tue, 27 May 2025 11:23:05 +0200 Subject: [PATCH 37/46] ci: use ghcr registry for x86_64-gnu-tools job --- src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile index 05c90af78073..e770c58bd9cf 100644 --- a/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile +++ b/src/ci/docker/host-x86_64/x86_64-gnu-tools/Dockerfile @@ -1,4 +1,4 @@ -FROM ubuntu:22.04 +FROM ghcr.io/rust-lang/ubuntu:22.04 ARG DEBIAN_FRONTEND=noninteractive RUN apt-get update && apt-get install -y --no-install-recommends \ From e6312c923220d187458473437d1710ed9e5ae9c7 Mon Sep 17 00:00:00 2001 From: klensy Date: Tue, 27 May 2025 14:11:14 +0300 Subject: [PATCH 38/46] bump fluent-* crates --- Cargo.lock | 28 +++++++++--------------- compiler/rustc_error_messages/Cargo.toml | 4 ++-- compiler/rustc_fluent_macro/Cargo.toml | 4 ++-- src/tools/tidy/Cargo.toml | 2 +- 4 files changed, 15 insertions(+), 23 deletions(-) diff --git a/Cargo.lock b/Cargo.lock index 177ff6594e24..c309f10997ca 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1259,16 +1259,16 @@ dependencies = [ [[package]] name = "fluent-bundle" -version = "0.15.3" +version = "0.16.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "7fe0a21ee80050c678013f82edf4b705fe2f26f1f9877593d13198612503f493" +checksum = "01203cb8918f5711e73891b347816d932046f95f54207710bda99beaeb423bf4" dependencies = [ "fluent-langneg", "fluent-syntax", "intl-memoizer", "intl_pluralrules", - "rustc-hash 1.1.0", - "self_cell 0.10.3", + "rustc-hash 2.1.1", + "self_cell", "smallvec", "unic-langid", ] @@ -1284,11 +1284,12 @@ dependencies = [ [[package]] name = "fluent-syntax" -version = "0.11.1" +version = "0.12.0" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "2a530c4694a6a8d528794ee9bbd8ba0122e779629ac908d15ad5a7ae7763a33d" +checksum = "54f0d287c53ffd184d04d8677f590f4ac5379785529e5e08b1c8083acdd5c198" dependencies = [ - "thiserror 1.0.69", + "memchr", + "thiserror 2.0.12", ] [[package]] @@ -1934,9 +1935,9 @@ dependencies = [ [[package]] name = "intl-memoizer" -version = "0.5.2" +version = "0.5.3" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "fe22e020fce238ae18a6d5d8c502ee76a52a6e880d99477657e6acc30ec57bda" +checksum = "310da2e345f5eb861e7a07ee182262e94975051db9e4223e909ba90f392f163f" dependencies = [ "type-map", "unic-langid", @@ -4832,15 +4833,6 @@ version = "1.2.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49" -[[package]] -name = "self_cell" -version = "0.10.3" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "e14e4d63b804dc0c7ec4a1e52bcb63f02c7ac94476755aa579edac21e01f915d" -dependencies = [ - "self_cell 1.2.0", -] - [[package]] name = "self_cell" version = "1.2.0" diff --git a/compiler/rustc_error_messages/Cargo.toml b/compiler/rustc_error_messages/Cargo.toml index 578af7fc51d4..0951859fa531 100644 --- a/compiler/rustc_error_messages/Cargo.toml +++ b/compiler/rustc_error_messages/Cargo.toml @@ -5,8 +5,8 @@ edition = "2024" [dependencies] # tidy-alphabetical-start -fluent-bundle = "0.15.2" -fluent-syntax = "0.11" +fluent-bundle = "0.16" +fluent-syntax = "0.12" icu_list = "1.2" icu_locid = "1.2" icu_provider_adapters = "1.2" diff --git a/compiler/rustc_fluent_macro/Cargo.toml b/compiler/rustc_fluent_macro/Cargo.toml index ce76b2745eaa..d7ef4280aef0 100644 --- a/compiler/rustc_fluent_macro/Cargo.toml +++ b/compiler/rustc_fluent_macro/Cargo.toml @@ -9,8 +9,8 @@ proc-macro = true [dependencies] # tidy-alphabetical-start annotate-snippets = "0.11" -fluent-bundle = "0.15.2" -fluent-syntax = "0.11" +fluent-bundle = "0.16" +fluent-syntax = "0.12" proc-macro2 = "1" quote = "1" syn = { version = "2", features = ["full"] } diff --git a/src/tools/tidy/Cargo.toml b/src/tools/tidy/Cargo.toml index dfdbc0878f26..4835c2202104 100644 --- a/src/tools/tidy/Cargo.toml +++ b/src/tools/tidy/Cargo.toml @@ -15,7 +15,7 @@ semver = "1.0" serde = { version = "1.0.125", features = ["derive"], optional = true } termcolor = "1.1.3" rustc-hash = "2.0.0" -fluent-syntax = "0.11.1" +fluent-syntax = "0.12" similar = "2.5.0" toml = "0.7.8" From 29c3babd7c03a48b022663beb7ad39bb24bbef36 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sat, 24 May 2025 12:07:32 +0000 Subject: [PATCH 39/46] Rename unpack to kind --- .../src/diagnostics/region_name.rs | 4 +-- .../src/type_check/constraint_conversion.rs | 2 +- .../src/type_check/opaque_types.rs | 2 +- compiler/rustc_codegen_ssa/src/meth.rs | 2 +- .../rustc_const_eval/src/check_consts/ops.rs | 2 +- .../rustc_const_eval/src/util/type_name.rs | 2 +- .../rustc_hir_analysis/src/check/check.rs | 4 +-- .../src/check/compare_impl_item.rs | 4 +-- .../src/check/compare_impl_item/refine.rs | 2 +- .../rustc_hir_analysis/src/check/wfcheck.rs | 4 +-- .../src/collect/item_bounds.rs | 2 +- .../src/hir_ty_lowering/dyn_compatibility.rs | 2 +- .../src/hir_ty_lowering/mod.rs | 2 +- .../src/outlives/implicit_infer.rs | 4 +-- .../rustc_hir_analysis/src/outlives/mod.rs | 2 +- .../rustc_hir_analysis/src/outlives/utils.rs | 2 +- .../src/variance/constraints.rs | 6 ++-- .../src/fn_ctxt/adjust_fulfillment_errors.rs | 16 +++++----- .../rustc_hir_typeck/src/method/suggest.rs | 4 +-- compiler/rustc_infer/src/infer/at.rs | 2 +- .../src/infer/canonical/instantiate.rs | 6 ++-- .../src/infer/canonical/query_response.rs | 6 ++-- compiler/rustc_infer/src/infer/context.rs | 2 +- compiler/rustc_infer/src/infer/mod.rs | 4 +-- .../src/infer/outlives/obligations.rs | 4 +-- .../src/infer/relate/generalize.rs | 2 +- .../rustc_lint/src/impl_trait_overcaptures.rs | 2 +- compiler/rustc_middle/src/ty/context.rs | 4 +-- compiler/rustc_middle/src/ty/generic_args.rs | 30 +++++++++---------- compiler/rustc_middle/src/ty/impls_ty.rs | 2 +- compiler/rustc_middle/src/ty/mod.rs | 26 ++++++++-------- compiler/rustc_middle/src/ty/opaque_types.rs | 6 ++-- compiler/rustc_middle/src/ty/print/pretty.rs | 6 ++-- compiler/rustc_middle/src/ty/relate.rs | 4 +-- .../rustc_middle/src/ty/structural_impls.rs | 4 +-- .../rustc_middle/src/ty/typeck_results.rs | 2 +- compiler/rustc_middle/src/ty/util.rs | 4 +-- .../src/thir/pattern/const_to_pat.rs | 2 +- .../src/cfi/typeid/itanium_cxx_abi/encode.rs | 4 +-- .../rustc_smir/src/rustc_smir/convert/ty.rs | 12 ++++---- compiler/rustc_symbol_mangling/src/export.rs | 2 +- compiler/rustc_symbol_mangling/src/legacy.rs | 2 +- compiler/rustc_symbol_mangling/src/v0.rs | 8 ++--- .../src/error_reporting/infer/mod.rs | 8 ++--- .../error_reporting/infer/need_type_info.rs | 12 ++++---- .../src/error_reporting/infer/suggest.rs | 4 +-- .../traits/fulfillment_errors.rs | 2 +- .../rustc_trait_selection/src/opaque_types.rs | 2 +- .../src/solve/delegate.rs | 2 +- .../src/solve/inspect/analyse.rs | 2 +- .../src/traits/select/mod.rs | 2 +- .../src/traits/structural_normalize.rs | 2 +- .../rustc_trait_selection/src/traits/wf.rs | 2 +- .../rustc_ty_utils/src/representability.rs | 4 +-- compiler/rustc_ty_utils/src/ty.rs | 2 +- src/librustdoc/clean/mod.rs | 2 +- src/librustdoc/clean/utils.rs | 4 +-- .../src/arc_with_non_send_sync.rs | 2 +- src/tools/clippy/clippy_lints/src/derive.rs | 2 +- .../clippy/clippy_lints/src/eta_reduction.rs | 4 +-- .../clippy_lints/src/functions/ref_option.rs | 2 +- .../clippy/clippy_lints/src/let_underscore.rs | 2 +- .../src/matches/manual_unwrap_or.rs | 2 +- .../src/matches/redundant_pattern_match.rs | 2 +- .../matches/significant_drop_in_scrutinee.rs | 4 +-- .../src/methods/needless_collect.rs | 2 +- .../src/methods/unnecessary_sort_by.rs | 2 +- .../src/methods/unnecessary_to_owned.rs | 4 +-- .../src/needless_borrows_for_generic_args.rs | 2 +- .../src/non_send_fields_in_send_ty.rs | 6 ++-- .../src/only_used_in_recursion.rs | 2 +- src/tools/clippy/clippy_lints/src/returns.rs | 2 +- .../src/significant_drop_tightening.rs | 2 +- src/tools/clippy/clippy_lints/src/use_self.rs | 4 +-- .../src/msrv_attr_impl.rs | 2 +- src/tools/clippy/clippy_utils/src/lib.rs | 2 +- .../clippy_utils/src/qualify_min_const_fn.rs | 2 +- src/tools/clippy/clippy_utils/src/ty/mod.rs | 10 +++---- .../clippy_utils/src/ty/type_certainty/mod.rs | 2 +- src/tools/miri/src/machine.rs | 2 +- 80 files changed, 165 insertions(+), 165 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index b08c10983bbc..4aa9e90ab885 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -607,7 +607,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { search_stack: &mut Vec<(Ty<'tcx>, &'hir hir::Ty<'hir>)>, ) -> Option<&'hir hir::Lifetime> { for (kind, hir_arg) in iter::zip(args, hir_args.args) { - match (kind.unpack(), hir_arg) { + match (kind.kind(), hir_arg) { (GenericArgKind::Lifetime(r), hir::GenericArg::Lifetime(lt)) => { if r.as_var() == needle_fr { return Some(lt); @@ -997,7 +997,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { ) -> bool { let tcx = self.infcx.tcx; ty.walk().any(|arg| { - if let ty::GenericArgKind::Type(ty) = arg.unpack() + if let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Param(_) = ty.kind() { clauses.iter().any(|pred| { diff --git a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs index 57516565147e..a1c74672157b 100644 --- a/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs +++ b/compiler/rustc_borrowck/src/type_check/constraint_conversion.rs @@ -148,7 +148,7 @@ impl<'a, 'tcx> ConstraintConversion<'a, 'tcx> { let mut next_outlives_predicates = vec![]; for (ty::OutlivesPredicate(k1, r2), constraint_category) in outlives_predicates { - match k1.unpack() { + match k1.kind() { GenericArgKind::Lifetime(r1) => { let r1_vid = self.to_region_vid(r1); let r2_vid = self.to_region_vid(r2); diff --git a/compiler/rustc_borrowck/src/type_check/opaque_types.rs b/compiler/rustc_borrowck/src/type_check/opaque_types.rs index 341c50c37f6d..5a422483eef4 100644 --- a/compiler/rustc_borrowck/src/type_check/opaque_types.rs +++ b/compiler/rustc_borrowck/src/type_check/opaque_types.rs @@ -221,7 +221,7 @@ fn register_member_constraints<'tcx>( .iter() .enumerate() .filter(|(i, _)| variances[*i] == ty::Invariant) - .filter_map(|(_, arg)| match arg.unpack() { + .filter_map(|(_, arg)| match arg.kind() { GenericArgKind::Lifetime(r) => Some(typeck.to_region_vid(r)), GenericArgKind::Type(_) | GenericArgKind::Const(_) => None, }) diff --git a/compiler/rustc_codegen_ssa/src/meth.rs b/compiler/rustc_codegen_ssa/src/meth.rs index 399c592432ac..3a11ce6befb3 100644 --- a/compiler/rustc_codegen_ssa/src/meth.rs +++ b/compiler/rustc_codegen_ssa/src/meth.rs @@ -77,7 +77,7 @@ fn dyn_trait_in_self<'tcx>( ty: Ty<'tcx>, ) -> Option> { for arg in ty.peel_refs().walk() { - if let GenericArgKind::Type(ty) = arg.unpack() + if let GenericArgKind::Type(ty) = arg.kind() && let ty::Dynamic(data, _, _) = ty.kind() { // FIXME(arbitrary_self_types): This is likely broken for receivers which diff --git a/compiler/rustc_const_eval/src/check_consts/ops.rs b/compiler/rustc_const_eval/src/check_consts/ops.rs index 1e5b98675c4f..177ba56b165e 100644 --- a/compiler/rustc_const_eval/src/check_consts/ops.rs +++ b/compiler/rustc_const_eval/src/check_consts/ops.rs @@ -281,7 +281,7 @@ fn build_error_for_const_call<'tcx>( let mut sugg = None; if ccx.tcx.is_lang_item(trait_id, LangItem::PartialEq) { - match (args[0].unpack(), args[1].unpack()) { + match (args[0].kind(), args[1].kind()) { (GenericArgKind::Type(self_ty), GenericArgKind::Type(rhs_ty)) if self_ty == rhs_ty && self_ty.is_ref() diff --git a/compiler/rustc_const_eval/src/util/type_name.rs b/compiler/rustc_const_eval/src/util/type_name.rs index 30e96ae41435..e8f2728a7728 100644 --- a/compiler/rustc_const_eval/src/util/type_name.rs +++ b/compiler/rustc_const_eval/src/util/type_name.rs @@ -125,7 +125,7 @@ impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> { ) -> Result<(), PrintError> { print_prefix(self)?; let args = - args.iter().cloned().filter(|arg| !matches!(arg.unpack(), GenericArgKind::Lifetime(_))); + args.iter().cloned().filter(|arg| !matches!(arg.kind(), GenericArgKind::Lifetime(_))); if args.clone().next().is_some() { self.generic_delimiters(|cx| cx.comma_sep(args)) } else { diff --git a/compiler/rustc_hir_analysis/src/check/check.rs b/compiler/rustc_hir_analysis/src/check/check.rs index 06814eaefe84..db7a5fe78976 100644 --- a/compiler/rustc_hir_analysis/src/check/check.rs +++ b/compiler/rustc_hir_analysis/src/check/check.rs @@ -1575,7 +1575,7 @@ fn check_type_alias_type_params_are_used<'tcx>(tcx: TyCtxt<'tcx>, def_id: LocalD let mut params_used = DenseBitSet::new_empty(generics.own_params.len()); for leaf in ty.walk() { - if let GenericArgKind::Type(leaf_ty) = leaf.unpack() + if let GenericArgKind::Type(leaf_ty) = leaf.kind() && let ty::Param(param) = leaf_ty.kind() { debug!("found use of ty param {:?}", param); @@ -1700,7 +1700,7 @@ fn opaque_type_cycle_error(tcx: TyCtxt<'_>, opaque_def_id: LocalDefId) -> ErrorG let mut label_match = |ty: Ty<'_>, span| { for arg in ty.walk() { - if let ty::GenericArgKind::Type(ty) = arg.unpack() + if let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Alias( ty::Opaque, ty::AliasTy { def_id: captured_def_id, .. }, diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs index 2ee41e2efbd3..47681a78ecca 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item.rs @@ -1231,7 +1231,7 @@ fn check_region_late_boundedness<'tcx>( for (id_arg, arg) in std::iter::zip(ty::GenericArgs::identity_for_item(tcx, impl_m.def_id), impl_m_args) { - if let ty::GenericArgKind::Lifetime(r) = arg.unpack() + if let ty::GenericArgKind::Lifetime(r) = arg.kind() && let ty::ReVar(vid) = r.kind() && let r = infcx .inner @@ -1256,7 +1256,7 @@ fn check_region_late_boundedness<'tcx>( for (id_arg, arg) in std::iter::zip(ty::GenericArgs::identity_for_item(tcx, trait_m.def_id), trait_m_args) { - if let ty::GenericArgKind::Lifetime(r) = arg.unpack() + if let ty::GenericArgKind::Lifetime(r) = arg.kind() && let ty::ReVar(vid) = r.kind() && let r = infcx .inner diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs index 4973d8489597..3db1c40228f6 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs @@ -427,7 +427,7 @@ fn report_mismatched_rpitit_captures<'tcx>( }; trait_captured_args - .sort_by_cached_key(|arg| !matches!(arg.unpack(), ty::GenericArgKind::Lifetime(_))); + .sort_by_cached_key(|arg| !matches!(arg.kind(), ty::GenericArgKind::Lifetime(_))); let suggestion = format!("use<{}>", trait_captured_args.iter().join(", ")); tcx.emit_node_span_lint( diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index 06c5e518fc64..476ce0e86911 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -819,7 +819,7 @@ impl<'tcx> TypeVisitor> for GATArgsCollector<'tcx> { match t.kind() { ty::Alias(ty::Projection, p) if p.def_id == self.gat => { for (idx, arg) in p.args.iter().enumerate() { - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(lt) if !lt.is_bound() => { self.regions.insert((lt, idx)); } @@ -1517,7 +1517,7 @@ fn check_where_clauses<'tcx>(wfcx: &WfCheckingCtxt<'_, 'tcx>, span: Span, def_id } else { // If we've got a generic const parameter we still want to check its // type is correct in case both it and the param type are fully concrete. - let GenericArgKind::Const(ct) = default.unpack() else { + let GenericArgKind::Const(ct) = default.kind() else { continue; }; diff --git a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs index 279b1e82a716..5f1cdeddc193 100644 --- a/compiler/rustc_hir_analysis/src/collect/item_bounds.rs +++ b/compiler/rustc_hir_analysis/src/collect/item_bounds.rs @@ -151,7 +151,7 @@ fn remap_gat_vars_and_recurse_into_nested_projections<'tcx>( let mut mapping = FxIndexMap::default(); let generics = tcx.generics_of(assoc_item_def_id); for (param, var) in std::iter::zip(&generics.own_params, gat_vars) { - let existing = match var.unpack() { + let existing = match var.kind() { ty::GenericArgKind::Lifetime(re) => { if let ty::RegionKind::ReBound(ty::INNERMOST, bv) = re.kind() { mapping.insert(bv.var, tcx.mk_param_from_def(param)) 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 9e44b645aca7..e75c307984e7 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 @@ -216,7 +216,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { 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. - let references_self = match pred.skip_binder().term.unpack() { + let references_self = match pred.skip_binder().term.kind() { ty::TermKind::Ty(ty) => ty.walk().any(|arg| arg == dummy_self.into()), // FIXME(associated_const_equality): We should walk the const instead of not doing anything ty::TermKind::Const(_) => false, 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 6b21bbbfcd80..9eaa8360fee8 100644 --- a/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs +++ b/compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs @@ -607,7 +607,7 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ { if !infer_args && has_default { // No type parameter provided, but a default exists. if let Some(prev) = - preceding_args.iter().find_map(|arg| match arg.unpack() { + preceding_args.iter().find_map(|arg| match arg.kind() { GenericArgKind::Type(ty) => ty.error_reported().err(), _ => None, }) diff --git a/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs b/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs index c99eb12efcca..4f35b87be301 100644 --- a/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs +++ b/compiler/rustc_hir_analysis/src/outlives/implicit_infer.rs @@ -119,7 +119,7 @@ fn insert_required_predicates_to_be_wf<'tcx>( explicit_map: &mut ExplicitPredicatesMap<'tcx>, ) { for arg in ty.walk() { - let leaf_ty = match arg.unpack() { + let leaf_ty = match arg.kind() { GenericArgKind::Type(ty) => ty, // No predicates from lifetimes or constants, except potentially @@ -299,7 +299,7 @@ fn check_explicit_predicates<'tcx>( // binding) and thus infer an outlives requirement that `X: // 'b`. if let Some(self_ty) = ignored_self_ty - && let GenericArgKind::Type(ty) = outlives_predicate.0.unpack() + && let GenericArgKind::Type(ty) = outlives_predicate.0.kind() && ty.walk().any(|arg| arg == self_ty.into()) { debug!("skipping self ty = {ty:?}"); diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index daa908c8c78e..fbf973a49dc7 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -70,7 +70,7 @@ fn inferred_outlives_crate(tcx: TyCtxt<'_>, (): ()) -> CratePredicatesMap<'_> { let predicates = &*tcx.arena.alloc_from_iter(set.as_ref().skip_binder().iter().filter_map( |(ty::OutlivesPredicate(kind1, region2), &span)| { - match kind1.unpack() { + match kind1.kind() { GenericArgKind::Type(ty1) => Some(( ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(ty1, *region2)) .upcast(tcx), diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs index 044fb64ca821..3fd1dbb3a8a0 100644 --- a/compiler/rustc_hir_analysis/src/outlives/utils.rs +++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs @@ -25,7 +25,7 @@ pub(crate) fn insert_outlives_predicate<'tcx>( return; } - match kind.unpack() { + match kind.kind() { GenericArgKind::Type(ty) => { // `T: 'outlived_region` for some type `T` // But T could be a lot of things: diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs index 92cfece77c47..68ceec384b95 100644 --- a/compiler/rustc_hir_analysis/src/variance/constraints.rs +++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs @@ -201,7 +201,7 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { let variance_i = self.invariant(variance); for k in args { - match k.unpack() { + match k.kind() { GenericArgKind::Lifetime(lt) => { self.add_constraints_from_region(current, lt, variance_i) } @@ -294,7 +294,7 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { } for projection in data.projection_bounds() { - match projection.skip_binder().term.unpack() { + match projection.skip_binder().term.kind() { ty::TermKind::Ty(ty) => { self.add_constraints_from_ty(current, ty, self.invariant); } @@ -389,7 +389,7 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { "add_constraints_from_args: variance_decl={:?} variance_i={:?}", variance_decl, variance_i ); - match k.unpack() { + match k.kind() { GenericArgKind::Lifetime(lt) => { self.add_constraints_from_region(current, lt, variance_i) } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs index ee0436f73e1d..db6482fe4faf 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs @@ -80,12 +80,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let find_param_matching = |matches: &dyn Fn(ty::ParamTerm) -> bool| { predicate_args.iter().find_map(|arg| { arg.walk().find_map(|arg| { - if let ty::GenericArgKind::Type(ty) = arg.unpack() + if let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Param(param_ty) = *ty.kind() && matches(ty::ParamTerm::Ty(param_ty)) { Some(arg) - } else if let ty::GenericArgKind::Const(ct) = arg.unpack() + } else if let ty::GenericArgKind::Const(ct) = arg.kind() && let ty::ConstKind::Param(param_ct) = ct.kind() && matches(ty::ParamTerm::Const(param_ct)) { @@ -373,7 +373,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Handle `Self` param specifically, since it's separated in // the path representation if let Some(self_ty) = self_ty - && let ty::GenericArgKind::Type(ty) = param.unpack() + && let ty::GenericArgKind::Type(ty) = param.kind() && ty == self.tcx.types.self_param { error.obligation.cause.span = self_ty @@ -389,7 +389,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } // Handle `Self` param specifically, since it's separated in // the path representation - if let ty::GenericArgKind::Type(ty) = param.unpack() + if let ty::GenericArgKind::Type(ty) = param.kind() && ty == self.tcx.types.self_param { error.obligation.cause.span = self_ty @@ -424,10 +424,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // the args list does not, then we should chop off all of the lifetimes, // since they're all elided. let segment_args = segment.args().args; - if matches!(own_args[0].unpack(), ty::GenericArgKind::Lifetime(_)) + if matches!(own_args[0].kind(), ty::GenericArgKind::Lifetime(_)) && segment_args.first().is_some_and(|arg| arg.is_ty_or_const()) && let Some(offset) = own_args.iter().position(|arg| { - matches!(arg.unpack(), ty::GenericArgKind::Type(_) | ty::GenericArgKind::Const(_)) + matches!(arg.kind(), ty::GenericArgKind::Type(_) | ty::GenericArgKind::Const(_)) }) && let Some(new_index) = index.checked_sub(offset) { @@ -750,7 +750,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { return Ok(expr); } - let ty::GenericArgKind::Type(in_ty) = in_ty.unpack() else { + let ty::GenericArgKind::Type(in_ty) = in_ty.kind() else { return Err(expr); }; @@ -1045,7 +1045,7 @@ fn find_param_in_ty<'tcx>( if arg == param_to_point_at { return true; } - if let ty::GenericArgKind::Type(ty) = arg.unpack() + if let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Alias(ty::Projection | ty::Inherent, ..) = ty.kind() { // This logic may seem a bit strange, but typically when diff --git a/compiler/rustc_hir_typeck/src/method/suggest.rs b/compiler/rustc_hir_typeck/src/method/suggest.rs index 7b71f5de7569..3eae95d5b738 100644 --- a/compiler/rustc_hir_typeck/src/method/suggest.rs +++ b/compiler/rustc_hir_typeck/src/method/suggest.rs @@ -2226,7 +2226,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let infer_args = self.tcx.mk_args_from_iter(args.into_iter().map(|arg| { if !arg.is_suggestable(self.tcx, true) { has_unsuggestable_args = true; - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(_) => self .next_region_var(RegionVariableOrigin::MiscVariable(DUMMY_SP)) .into(), @@ -2843,7 +2843,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { let [first] = ***args else { return; }; - let ty::GenericArgKind::Type(ty) = first.unpack() else { + let ty::GenericArgKind::Type(ty) = first.kind() else { return; }; let Ok(pick) = self.lookup_probe_for_diagnostic( diff --git a/compiler/rustc_infer/src/infer/at.rs b/compiler/rustc_infer/src/infer/at.rs index 2cd67cc4da21..5fe795bd23a1 100644 --- a/compiler/rustc_infer/src/infer/at.rs +++ b/compiler/rustc_infer/src/infer/at.rs @@ -347,7 +347,7 @@ impl<'tcx> ToTrace<'tcx> for ty::GenericArg<'tcx> { fn to_trace(cause: &ObligationCause<'tcx>, a: Self, b: Self) -> TypeTrace<'tcx> { TypeTrace { cause: cause.clone(), - values: match (a.unpack(), b.unpack()) { + values: match (a.kind(), b.kind()) { (GenericArgKind::Lifetime(a), GenericArgKind::Lifetime(b)) => { ValuePairs::Regions(ExpectedFound::new(a, b)) } diff --git a/compiler/rustc_infer/src/infer/canonical/instantiate.rs b/compiler/rustc_infer/src/infer/canonical/instantiate.rs index f5ee5702d09c..67f13192b522 100644 --- a/compiler/rustc_infer/src/infer/canonical/instantiate.rs +++ b/compiler/rustc_infer/src/infer/canonical/instantiate.rs @@ -61,15 +61,15 @@ where value } else { let delegate = FnMutDelegate { - regions: &mut |br: ty::BoundRegion| match var_values[br.var].unpack() { + regions: &mut |br: ty::BoundRegion| match var_values[br.var].kind() { GenericArgKind::Lifetime(l) => l, r => bug!("{:?} is a region but value is {:?}", br, r), }, - types: &mut |bound_ty: ty::BoundTy| match var_values[bound_ty.var].unpack() { + types: &mut |bound_ty: ty::BoundTy| match var_values[bound_ty.var].kind() { GenericArgKind::Type(ty) => ty, r => bug!("{:?} is a type but value is {:?}", bound_ty, r), }, - consts: &mut |bound_ct: ty::BoundVar| match var_values[bound_ct].unpack() { + consts: &mut |bound_ct: ty::BoundVar| match var_values[bound_ct].kind() { GenericArgKind::Const(ct) => ct, c => bug!("{:?} is a const but value is {:?}", bound_ct, c), }, diff --git a/compiler/rustc_infer/src/infer/canonical/query_response.rs b/compiler/rustc_infer/src/infer/canonical/query_response.rs index bda33f3f455b..008ef6900089 100644 --- a/compiler/rustc_infer/src/infer/canonical/query_response.rs +++ b/compiler/rustc_infer/src/infer/canonical/query_response.rs @@ -245,7 +245,7 @@ impl<'tcx> InferCtxt<'tcx> { let result_value = query_response.instantiate_projected(self.tcx, &result_args, |v| { v.var_values[BoundVar::new(index)] }); - match (original_value.unpack(), result_value.unpack()) { + match (original_value.kind(), result_value.kind()) { (GenericArgKind::Lifetime(re1), GenericArgKind::Lifetime(re2)) if re1.is_erased() && re2.is_erased() => { @@ -402,7 +402,7 @@ impl<'tcx> InferCtxt<'tcx> { // [(?A, Vec), ('static, '?1), (?B, ?0)] for (original_value, result_value) in iter::zip(&original_values.var_values, result_values) { - match result_value.unpack() { + match result_value.kind() { GenericArgKind::Type(result_value) => { // e.g., here `result_value` might be `?0` in the example above... if let ty::Bound(debruijn, b) = *result_value.kind() { @@ -533,7 +533,7 @@ impl<'tcx> InferCtxt<'tcx> { for (index, value1) in variables1.var_values.iter().enumerate() { let value2 = variables2(BoundVar::new(index)); - match (value1.unpack(), value2.unpack()) { + match (value1.kind(), value2.kind()) { (GenericArgKind::Type(v1), GenericArgKind::Type(v2)) => { obligations.extend( self.at(cause, param_env) diff --git a/compiler/rustc_infer/src/infer/context.rs b/compiler/rustc_infer/src/infer/context.rs index 6b75d676f4d7..f7c702d321b2 100644 --- a/compiler/rustc_infer/src/infer/context.rs +++ b/compiler/rustc_infer/src/infer/context.rs @@ -90,7 +90,7 @@ impl<'tcx> rustc_type_ir::InferCtxtLike for InferCtxt<'tcx> { } fn is_changed_arg(&self, arg: ty::GenericArg<'tcx>) -> bool { - match arg.unpack() { + match arg.kind() { ty::GenericArgKind::Lifetime(_) => { // Lifetimes should not change affect trait selection. false diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs index 8fb25cb9b32f..96e03e3bea56 100644 --- a/compiler/rustc_infer/src/infer/mod.rs +++ b/compiler/rustc_infer/src/infer/mod.rs @@ -1372,7 +1372,7 @@ impl<'tcx> TyOrConstInferVar { /// for types other than `ty::Infer(_)` (or `InferTy::Fresh*`) and /// for constants other than `ty::ConstKind::Infer(_)` (or `InferConst::Fresh`). pub fn maybe_from_generic_arg(arg: GenericArg<'tcx>) -> Option { - match arg.unpack() { + match arg.kind() { GenericArgKind::Type(ty) => Self::maybe_from_ty(ty), GenericArgKind::Const(ct) => Self::maybe_from_const(ct), GenericArgKind::Lifetime(_) => None, @@ -1383,7 +1383,7 @@ impl<'tcx> TyOrConstInferVar { /// for types other than `ty::Infer(_)` (or `InferTy::Fresh*`) and /// for constants other than `ty::ConstKind::Infer(_)` (or `InferConst::Fresh`). pub fn maybe_from_term(term: Term<'tcx>) -> Option { - match term.unpack() { + match term.kind() { TermKind::Ty(ty) => Self::maybe_from_ty(ty), TermKind::Const(ct) => Self::maybe_from_const(ct), } diff --git a/compiler/rustc_infer/src/infer/outlives/obligations.rs b/compiler/rustc_infer/src/infer/outlives/obligations.rs index 890902af02bc..0d2732a3b6d3 100644 --- a/compiler/rustc_infer/src/infer/outlives/obligations.rs +++ b/compiler/rustc_infer/src/infer/outlives/obligations.rs @@ -87,7 +87,7 @@ impl<'tcx> InferCtxt<'tcx> { ty::OutlivesPredicate(arg, r2): ty::OutlivesPredicate<'tcx, ty::GenericArg<'tcx>>, cause: &ObligationCause<'tcx>, ) { - match arg.unpack() { + match arg.kind() { ty::GenericArgKind::Lifetime(r1) => { self.register_region_outlives_constraint(ty::OutlivesPredicate(r1, r2), cause); } @@ -504,7 +504,7 @@ where ) { let constraint = origin.to_constraint_category(); for (index, k) in args.iter().enumerate() { - match k.unpack() { + match k.kind() { GenericArgKind::Lifetime(lt) => { let variance = if let Some(variances) = opt_variances { variances[index] diff --git a/compiler/rustc_infer/src/infer/relate/generalize.rs b/compiler/rustc_infer/src/infer/relate/generalize.rs index 210b8f37d883..0e17b100276a 100644 --- a/compiler/rustc_infer/src/infer/relate/generalize.rs +++ b/compiler/rustc_infer/src/infer/relate/generalize.rs @@ -329,7 +329,7 @@ struct Generalizer<'me, 'tcx> { impl<'tcx> Generalizer<'_, 'tcx> { /// Create an error that corresponds to the term kind in `root_term` fn cyclic_term_error(&self) -> TypeError<'tcx> { - match self.root_term.unpack() { + match self.root_term.kind() { ty::TermKind::Ty(ty) => TypeError::CyclicTy(ty), ty::TermKind::Const(ct) => TypeError::CyclicConst(ct), } diff --git a/compiler/rustc_lint/src/impl_trait_overcaptures.rs b/compiler/rustc_lint/src/impl_trait_overcaptures.rs index a8f45d043be9..8124d7f7c86a 100644 --- a/compiler/rustc_lint/src/impl_trait_overcaptures.rs +++ b/compiler/rustc_lint/src/impl_trait_overcaptures.rs @@ -461,7 +461,7 @@ fn extract_def_id_from_arg<'tcx>( generics: &'tcx ty::Generics, arg: ty::GenericArg<'tcx>, ) -> DefId { - match arg.unpack() { + match arg.kind() { ty::GenericArgKind::Lifetime(re) => match re.kind() { ty::ReEarlyParam(ebr) => generics.region_param(ebr, tcx).def_id, ty::ReBound( diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs index 70172e55e541..57b20a1bba60 100644 --- a/compiler/rustc_middle/src/ty/context.rs +++ b/compiler/rustc_middle/src/ty/context.rs @@ -2781,7 +2781,7 @@ impl<'tcx> TyCtxt<'tcx> { return false; } - if !matches!(args[0].unpack(), ty::GenericArgKind::Type(_)) { + if !matches!(args[0].kind(), ty::GenericArgKind::Type(_)) { return false; } @@ -2803,7 +2803,7 @@ impl<'tcx> TyCtxt<'tcx> { }; for (param, arg) in std::iter::zip(&generics.own_params, own_args) { - match (¶m.kind, arg.unpack()) { + match (¶m.kind, arg.kind()) { (ty::GenericParamDefKind::Type { .. }, ty::GenericArgKind::Type(_)) | (ty::GenericParamDefKind::Lifetime, ty::GenericArgKind::Lifetime(_)) | (ty::GenericParamDefKind::Const { .. }, ty::GenericArgKind::Const(_)) => {} diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index 542c0b3e6ebb..b7d3fd81b111 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -137,7 +137,7 @@ impl<'tcx> rustc_type_ir::inherent::IntoKind for GenericArg<'tcx> { type Kind = GenericArgKind<'tcx>; fn kind(self) -> Self::Kind { - self.unpack() + self.kind() } } @@ -218,7 +218,7 @@ impl<'tcx> From> for GenericArg<'tcx> { impl<'tcx> From> for GenericArg<'tcx> { fn from(value: ty::Term<'tcx>) -> Self { - match value.unpack() { + match value.kind() { ty::TermKind::Ty(t) => t.into(), ty::TermKind::Const(c) => c.into(), } @@ -227,7 +227,7 @@ impl<'tcx> From> for GenericArg<'tcx> { impl<'tcx> GenericArg<'tcx> { #[inline] - pub fn unpack(self) -> GenericArgKind<'tcx> { + pub fn kind(self) -> GenericArgKind<'tcx> { let ptr = unsafe { self.ptr.map_addr(|addr| NonZero::new_unchecked(addr.get() & !TAG_MASK)) }; // SAFETY: use of `Interned::new_unchecked` here is ok because these @@ -251,7 +251,7 @@ impl<'tcx> GenericArg<'tcx> { #[inline] pub fn as_region(self) -> Option> { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(re) => Some(re), _ => None, } @@ -259,7 +259,7 @@ impl<'tcx> GenericArg<'tcx> { #[inline] pub fn as_type(self) -> Option> { - match self.unpack() { + match self.kind() { GenericArgKind::Type(ty) => Some(ty), _ => None, } @@ -267,7 +267,7 @@ impl<'tcx> GenericArg<'tcx> { #[inline] pub fn as_const(self) -> Option> { - match self.unpack() { + match self.kind() { GenericArgKind::Const(ct) => Some(ct), _ => None, } @@ -275,7 +275,7 @@ impl<'tcx> GenericArg<'tcx> { #[inline] pub fn as_term(self) -> Option> { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(_) => None, GenericArgKind::Type(ty) => Some(ty.into()), GenericArgKind::Const(ct) => Some(ct.into()), @@ -300,7 +300,7 @@ impl<'tcx> GenericArg<'tcx> { } pub fn is_non_region_infer(self) -> bool { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(_) => false, // FIXME: This shouldn't return numerical/float. GenericArgKind::Type(ty) => ty.is_ty_or_numeric_infer(), @@ -327,7 +327,7 @@ impl<'a, 'tcx> Lift> for GenericArg<'a> { type Lifted = GenericArg<'tcx>; fn lift_to_interner(self, tcx: TyCtxt<'tcx>) -> Option { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => tcx.lift(lt).map(|lt| lt.into()), GenericArgKind::Type(ty) => tcx.lift(ty).map(|ty| ty.into()), GenericArgKind::Const(ct) => tcx.lift(ct).map(|ct| ct.into()), @@ -340,7 +340,7 @@ impl<'tcx> TypeFoldable> for GenericArg<'tcx> { self, folder: &mut F, ) -> Result { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => lt.try_fold_with(folder).map(Into::into), GenericArgKind::Type(ty) => ty.try_fold_with(folder).map(Into::into), GenericArgKind::Const(ct) => ct.try_fold_with(folder).map(Into::into), @@ -348,7 +348,7 @@ impl<'tcx> TypeFoldable> for GenericArg<'tcx> { } fn fold_with>>(self, folder: &mut F) -> Self { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => lt.fold_with(folder).into(), GenericArgKind::Type(ty) => ty.fold_with(folder).into(), GenericArgKind::Const(ct) => ct.fold_with(folder).into(), @@ -358,7 +358,7 @@ impl<'tcx> TypeFoldable> for GenericArg<'tcx> { impl<'tcx> TypeVisitable> for GenericArg<'tcx> { fn visit_with>>(&self, visitor: &mut V) -> V::Result { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => lt.visit_with(visitor), GenericArgKind::Type(ty) => ty.visit_with(visitor), GenericArgKind::Const(ct) => ct.visit_with(visitor), @@ -368,7 +368,7 @@ impl<'tcx> TypeVisitable> for GenericArg<'tcx> { impl<'tcx, E: TyEncoder<'tcx>> Encodable for GenericArg<'tcx> { fn encode(&self, e: &mut E) { - self.unpack().encode(e) + self.kind().encode(e) } } @@ -390,7 +390,7 @@ impl<'tcx> GenericArgs<'tcx> { /// /// If any of the generic arguments are not types. pub fn into_type_list(&self, tcx: TyCtxt<'tcx>) -> &'tcx List> { - tcx.mk_type_list_from_iter(self.iter().map(|arg| match arg.unpack() { + tcx.mk_type_list_from_iter(self.iter().map(|arg| match arg.kind() { GenericArgKind::Type(ty) => ty, _ => bug!("`into_type_list` called on generic arg with non-types"), })) @@ -527,7 +527,7 @@ impl<'tcx> GenericArgs<'tcx> { /// Returns generic arguments that are not lifetimes. #[inline] pub fn non_erasable_generics(&self) -> impl DoubleEndedIterator> { - self.iter().filter_map(|k| match k.unpack() { + self.iter().filter_map(|k| match k.kind() { ty::GenericArgKind::Lifetime(_) => None, generic => Some(generic), }) diff --git a/compiler/rustc_middle/src/ty/impls_ty.rs b/compiler/rustc_middle/src/ty/impls_ty.rs index 5f6305bb48ad..ac45ce887c9a 100644 --- a/compiler/rustc_middle/src/ty/impls_ty.rs +++ b/compiler/rustc_middle/src/ty/impls_ty.rs @@ -60,7 +60,7 @@ where impl<'a, 'tcx> HashStable> for ty::GenericArg<'tcx> { fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { - self.unpack().hash_stable(hcx, hasher); + self.kind().hash_stable(hcx, hasher); } } diff --git a/compiler/rustc_middle/src/ty/mod.rs b/compiler/rustc_middle/src/ty/mod.rs index f57329608ef7..78c0812b08f8 100644 --- a/compiler/rustc_middle/src/ty/mod.rs +++ b/compiler/rustc_middle/src/ty/mod.rs @@ -504,7 +504,7 @@ impl<'tcx> rustc_type_ir::inherent::IntoKind for Term<'tcx> { type Kind = TermKind<'tcx>; fn kind(self) -> Self::Kind { - self.unpack() + self.kind() } } @@ -521,7 +521,7 @@ unsafe impl<'tcx> Sync for Term<'tcx> where &'tcx (Ty<'tcx>, Const<'tcx>): Sync impl Debug for Term<'_> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - match self.unpack() { + match self.kind() { TermKind::Ty(ty) => write!(f, "Term::Ty({ty:?})"), TermKind::Const(ct) => write!(f, "Term::Const({ct:?})"), } @@ -542,7 +542,7 @@ impl<'tcx> From> for Term<'tcx> { impl<'a, 'tcx> HashStable> for Term<'tcx> { fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) { - self.unpack().hash_stable(hcx, hasher); + self.kind().hash_stable(hcx, hasher); } } @@ -551,14 +551,14 @@ impl<'tcx> TypeFoldable> for Term<'tcx> { self, folder: &mut F, ) -> Result { - match self.unpack() { + match self.kind() { ty::TermKind::Ty(ty) => ty.try_fold_with(folder).map(Into::into), ty::TermKind::Const(ct) => ct.try_fold_with(folder).map(Into::into), } } fn fold_with>>(self, folder: &mut F) -> Self { - match self.unpack() { + match self.kind() { ty::TermKind::Ty(ty) => ty.fold_with(folder).into(), ty::TermKind::Const(ct) => ct.fold_with(folder).into(), } @@ -567,7 +567,7 @@ impl<'tcx> TypeFoldable> for Term<'tcx> { impl<'tcx> TypeVisitable> for Term<'tcx> { fn visit_with>>(&self, visitor: &mut V) -> V::Result { - match self.unpack() { + match self.kind() { ty::TermKind::Ty(ty) => ty.visit_with(visitor), ty::TermKind::Const(ct) => ct.visit_with(visitor), } @@ -576,7 +576,7 @@ impl<'tcx> TypeVisitable> for Term<'tcx> { impl<'tcx, E: TyEncoder<'tcx>> Encodable for Term<'tcx> { fn encode(&self, e: &mut E) { - self.unpack().encode(e) + self.kind().encode(e) } } @@ -589,7 +589,7 @@ impl<'tcx, D: TyDecoder<'tcx>> Decodable for Term<'tcx> { impl<'tcx> Term<'tcx> { #[inline] - pub fn unpack(self) -> TermKind<'tcx> { + pub fn kind(self) -> TermKind<'tcx> { let ptr = unsafe { self.ptr.map_addr(|addr| NonZero::new_unchecked(addr.get() & !TAG_MASK)) }; // SAFETY: use of `Interned::new_unchecked` here is ok because these @@ -609,7 +609,7 @@ impl<'tcx> Term<'tcx> { } pub fn as_type(&self) -> Option> { - if let TermKind::Ty(ty) = self.unpack() { Some(ty) } else { None } + if let TermKind::Ty(ty) = self.kind() { Some(ty) } else { None } } pub fn expect_type(&self) -> Ty<'tcx> { @@ -617,7 +617,7 @@ impl<'tcx> Term<'tcx> { } pub fn as_const(&self) -> Option> { - if let TermKind::Const(c) = self.unpack() { Some(c) } else { None } + if let TermKind::Const(c) = self.kind() { Some(c) } else { None } } pub fn expect_const(&self) -> Const<'tcx> { @@ -625,14 +625,14 @@ impl<'tcx> Term<'tcx> { } pub fn into_arg(self) -> GenericArg<'tcx> { - match self.unpack() { + match self.kind() { TermKind::Ty(ty) => ty.into(), TermKind::Const(c) => c.into(), } } pub fn to_alias_term(self) -> Option> { - match self.unpack() { + match self.kind() { TermKind::Ty(ty) => match *ty.kind() { ty::Alias(_kind, alias_ty) => Some(alias_ty.into()), _ => None, @@ -645,7 +645,7 @@ impl<'tcx> Term<'tcx> { } pub fn is_infer(&self) -> bool { - match self.unpack() { + match self.kind() { TermKind::Ty(ty) => ty.is_ty_var(), TermKind::Const(ct) => ct.is_ct_infer(), } diff --git a/compiler/rustc_middle/src/ty/opaque_types.rs b/compiler/rustc_middle/src/ty/opaque_types.rs index 9445a18ad76b..5c05bdb08eba 100644 --- a/compiler/rustc_middle/src/ty/opaque_types.rs +++ b/compiler/rustc_middle/src/ty/opaque_types.rs @@ -120,7 +120,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { } } - match self.map.get(&r.into()).map(|k| k.unpack()) { + match self.map.get(&r.into()).map(|k| k.kind()) { Some(GenericArgKind::Lifetime(r1)) => r1, Some(u) => panic!("region mapped to unexpected kind: {u:?}"), None if self.do_not_error => self.tcx.lifetimes.re_static, @@ -162,7 +162,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { ty::Param(param) => { // Look it up in the generic parameters list. - match self.map.get(&ty.into()).map(|k| k.unpack()) { + match self.map.get(&ty.into()).map(|k| k.kind()) { // Found it in the generic parameters list; replace with the parameter from the // opaque type. Some(GenericArgKind::Type(t1)) => t1, @@ -195,7 +195,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { match ct.kind() { ty::ConstKind::Param(..) => { // Look it up in the generic parameters list. - match self.map.get(&ct.into()).map(|k| k.unpack()) { + match self.map.get(&ct.into()).map(|k| k.kind()) { // Found it in the generic parameters list, replace with the parameter from the // opaque type. Some(GenericArgKind::Const(c1)) => c1, diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 6fd6aff0e2b2..877bea095f96 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -1239,7 +1239,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write { p!(write("{} = ", tcx.associated_item(assoc_item_def_id).name())); - match term.unpack() { + match term.kind() { TermKind::Ty(ty) => p!(print(ty)), TermKind::Const(c) => p!(print(c)), }; @@ -3386,7 +3386,7 @@ define_print_and_forward_display! { } ty::Term<'tcx> { - match self.unpack() { + match self.kind() { ty::TermKind::Ty(ty) => p!(print(ty)), ty::TermKind::Const(c) => p!(print(c)), } @@ -3401,7 +3401,7 @@ define_print_and_forward_display! { } GenericArg<'tcx> { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => p!(print(lt)), GenericArgKind::Type(ty) => p!(print(ty)), GenericArgKind::Const(ct) => p!(print(ct)), diff --git a/compiler/rustc_middle/src/ty/relate.rs b/compiler/rustc_middle/src/ty/relate.rs index 6ad4e5276b25..dc1d60f3d43c 100644 --- a/compiler/rustc_middle/src/ty/relate.rs +++ b/compiler/rustc_middle/src/ty/relate.rs @@ -169,7 +169,7 @@ impl<'tcx> Relate> for ty::GenericArg<'tcx> { a: ty::GenericArg<'tcx>, b: ty::GenericArg<'tcx>, ) -> RelateResult<'tcx, ty::GenericArg<'tcx>> { - match (a.unpack(), b.unpack()) { + match (a.kind(), b.kind()) { (ty::GenericArgKind::Lifetime(a_lt), ty::GenericArgKind::Lifetime(b_lt)) => { Ok(relation.relate(a_lt, b_lt)?.into()) } @@ -190,7 +190,7 @@ impl<'tcx> Relate> for ty::Term<'tcx> { a: Self, b: Self, ) -> RelateResult<'tcx, Self> { - Ok(match (a.unpack(), b.unpack()) { + Ok(match (a.kind(), b.kind()) { (ty::TermKind::Ty(a), ty::TermKind::Ty(b)) => relation.relate(a, b)?.into(), (ty::TermKind::Const(a), ty::TermKind::Const(b)) => relation.relate(a, b)?.into(), _ => return Err(TypeError::Mismatch), diff --git a/compiler/rustc_middle/src/ty/structural_impls.rs b/compiler/rustc_middle/src/ty/structural_impls.rs index 58f7bc75054b..7a7c33fb34db 100644 --- a/compiler/rustc_middle/src/ty/structural_impls.rs +++ b/compiler/rustc_middle/src/ty/structural_impls.rs @@ -202,7 +202,7 @@ impl fmt::Debug for ty::Placeholder { impl<'tcx> fmt::Debug for GenericArg<'tcx> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - match self.unpack() { + match self.kind() { GenericArgKind::Lifetime(lt) => lt.fmt(f), GenericArgKind::Type(ty) => ty.fmt(f), GenericArgKind::Const(ct) => ct.fmt(f), @@ -326,7 +326,7 @@ impl<'tcx, T: Lift>> Lift> for Option { impl<'a, 'tcx> Lift> for Term<'a> { type Lifted = ty::Term<'tcx>; fn lift_to_interner(self, tcx: TyCtxt<'tcx>) -> Option { - match self.unpack() { + match self.kind() { TermKind::Ty(ty) => tcx.lift(ty).map(Into::into), TermKind::Const(c) => tcx.lift(c).map(Into::into), } diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index c6a45f846869..9627188c334e 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -778,7 +778,7 @@ impl<'tcx> IsIdentity for CanonicalUserType<'tcx> { } iter::zip(user_args.args, BoundVar::ZERO..).all(|(kind, cvar)| { - match kind.unpack() { + match kind.kind() { GenericArgKind::Type(ty) => match ty.kind() { ty::Bound(debruijn, b) => { // We only allow a `ty::INNERMOST` index in generic parameters. diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index ecf83926df7d..06fd8a294d0e 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -517,7 +517,7 @@ impl<'tcx> TyCtxt<'tcx> { let result = iter::zip(item_args, impl_args) .filter(|&(_, k)| { - match k.unpack() { + match k.kind() { GenericArgKind::Lifetime(region) => match region.kind() { ty::ReEarlyParam(ebr) => { !impl_generics.region_param(ebr, self).pure_wrt_drop @@ -554,7 +554,7 @@ impl<'tcx> TyCtxt<'tcx> { let mut seen = GrowableBitSet::default(); let mut seen_late = FxHashSet::default(); for arg in args { - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(lt) => match (ignore_regions, lt.kind()) { (CheckRegions::FromFunction, ty::ReBound(di, reg)) => { if !seen_late.insert((di, reg)) { diff --git a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs index e233358f3866..84a0190a7fa1 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/const_to_pat.rs @@ -131,7 +131,7 @@ impl<'tcx> ConstToPat<'tcx> { .dcx() .create_err(ConstPatternDependsOnGenericParameter { span: self.span }); for arg in uv.args { - if let ty::GenericArgKind::Type(ty) = arg.unpack() + if let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Param(param_ty) = ty.kind() { let def_id = self.tcx.hir_enclosing_body_owner(self.id); diff --git a/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs b/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs index 47831f2f4180..9d1d3412f8d2 100644 --- a/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs +++ b/compiler/rustc_sanitizers/src/cfi/typeid/itanium_cxx_abi/encode.rs @@ -79,7 +79,7 @@ fn encode_args<'tcx>( s.push('I'); let def_generics = tcx.generics_of(for_def); for (n, arg) in args.iter().enumerate() { - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(region) => { s.push_str(&encode_region(region, dict)); } @@ -245,7 +245,7 @@ fn encode_predicate<'tcx>( let name = encode_ty_name(tcx, projection.def_id); let _ = write!(s, "u{}{}", name.len(), name); s.push_str(&encode_args(tcx, projection.args, projection.def_id, true, dict, options)); - match projection.term.unpack() { + match projection.term.kind() { TermKind::Ty(ty) => s.push_str(&encode_ty(tcx, ty, dict, options)), TermKind::Const(c) => s.push_str(&encode_const( tcx, diff --git a/compiler/rustc_smir/src/rustc_smir/convert/ty.rs b/compiler/rustc_smir/src/rustc_smir/convert/ty.rs index 8bcac4c4678e..b0c9dba78a65 100644 --- a/compiler/rustc_smir/src/rustc_smir/convert/ty.rs +++ b/compiler/rustc_smir/src/rustc_smir/convert/ty.rs @@ -100,7 +100,7 @@ impl<'tcx> Stable<'tcx> for ty::ExistentialProjection<'tcx> { stable_mir::ty::ExistentialProjection { def_id: tables.trait_def(*def_id), generic_args: args.stable(tables), - term: term.unpack().stable(tables), + term: term.kind().stable(tables), } } } @@ -158,7 +158,7 @@ impl<'tcx> Stable<'tcx> for ty::FieldDef { impl<'tcx> Stable<'tcx> for ty::GenericArgs<'tcx> { type T = stable_mir::ty::GenericArgs; fn stable(&self, tables: &mut Tables<'_>) -> Self::T { - GenericArgs(self.iter().map(|arg| arg.unpack().stable(tables)).collect()) + GenericArgs(self.iter().map(|arg| arg.kind().stable(tables)).collect()) } } @@ -604,8 +604,8 @@ impl<'tcx> Stable<'tcx> for ty::PredicateKind<'tcx> { PredicateKind::NormalizesTo(_pred) => unimplemented!(), PredicateKind::AliasRelate(a, b, alias_relation_direction) => { stable_mir::ty::PredicateKind::AliasRelate( - a.unpack().stable(tables), - b.unpack().stable(tables), + a.kind().stable(tables), + b.kind().stable(tables), alias_relation_direction.stable(tables), ) } @@ -640,7 +640,7 @@ impl<'tcx> Stable<'tcx> for ty::ClauseKind<'tcx> { ty.stable(tables), ), ClauseKind::WellFormed(term) => { - stable_mir::ty::ClauseKind::WellFormed(term.unpack().stable(tables)) + stable_mir::ty::ClauseKind::WellFormed(term.kind().stable(tables)) } ClauseKind::ConstEvaluatable(const_) => { stable_mir::ty::ClauseKind::ConstEvaluatable(const_.stable(tables)) @@ -726,7 +726,7 @@ impl<'tcx> Stable<'tcx> for ty::ProjectionPredicate<'tcx> { let ty::ProjectionPredicate { projection_term, term } = self; stable_mir::ty::ProjectionPredicate { projection_term: projection_term.stable(tables), - term: term.unpack().stable(tables), + term: term.kind().stable(tables), } } } diff --git a/compiler/rustc_symbol_mangling/src/export.rs b/compiler/rustc_symbol_mangling/src/export.rs index 770401fc8cfe..956c996326bf 100644 --- a/compiler/rustc_symbol_mangling/src/export.rs +++ b/compiler/rustc_symbol_mangling/src/export.rs @@ -147,7 +147,7 @@ impl<'tcx> AbiHashStable<'tcx> for ty::FnSig<'tcx> { impl<'tcx> AbiHashStable<'tcx> for ty::GenericArg<'tcx> { fn abi_hash(&self, tcx: TyCtxt<'tcx>, hasher: &mut StableHasher) { - self.unpack().abi_hash(tcx, hasher); + self.kind().abi_hash(tcx, hasher); } } diff --git a/compiler/rustc_symbol_mangling/src/legacy.rs b/compiler/rustc_symbol_mangling/src/legacy.rs index db102abda7fa..12d1de463136 100644 --- a/compiler/rustc_symbol_mangling/src/legacy.rs +++ b/compiler/rustc_symbol_mangling/src/legacy.rs @@ -386,7 +386,7 @@ impl<'tcx> Printer<'tcx> for SymbolPrinter<'tcx> { print_prefix(self)?; let args = - args.iter().cloned().filter(|arg| !matches!(arg.unpack(), GenericArgKind::Lifetime(_))); + args.iter().cloned().filter(|arg| !matches!(arg.kind(), GenericArgKind::Lifetime(_))); if args.clone().next().is_some() { self.generic_delimiters(|cx| cx.comma_sep(args)) diff --git a/compiler/rustc_symbol_mangling/src/v0.rs b/compiler/rustc_symbol_mangling/src/v0.rs index 644031af8597..49a5e20d7cf8 100644 --- a/compiler/rustc_symbol_mangling/src/v0.rs +++ b/compiler/rustc_symbol_mangling/src/v0.rs @@ -646,7 +646,7 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> { let name = cx.tcx.associated_item(projection.def_id).name(); cx.push("p"); cx.push_ident(name.as_str()); - match projection.term.unpack() { + match projection.term.kind() { ty::TermKind::Ty(ty) => ty.print(cx), ty::TermKind::Const(c) => c.print(cx), }?; @@ -912,11 +912,11 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> { args: &[GenericArg<'tcx>], ) -> Result<(), PrintError> { // Don't print any regions if they're all erased. - let print_regions = args.iter().any(|arg| match arg.unpack() { + let print_regions = args.iter().any(|arg| match arg.kind() { GenericArgKind::Lifetime(r) => !r.is_erased(), _ => false, }); - let args = args.iter().cloned().filter(|arg| match arg.unpack() { + let args = args.iter().cloned().filter(|arg| match arg.kind() { GenericArgKind::Lifetime(_) => print_regions, _ => true, }); @@ -928,7 +928,7 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> { self.push("I"); print_prefix(self)?; for arg in args { - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(lt) => { lt.print(self)?; } diff --git a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs index fdd547448f00..aeadb32ac2b4 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/mod.rs @@ -738,7 +738,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { value.push_normal(", "); } - match arg.unpack() { + match arg.kind() { ty::GenericArgKind::Lifetime(lt) => { let s = lt.to_string(); value.push_normal(if s.is_empty() { "'_" } else { &s }); @@ -1166,7 +1166,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { for (i, (arg1, arg2)) in sub1.iter().zip(sub2).enumerate().take(len) { self.push_comma(&mut values.0, &mut values.1, i); - match arg1.unpack() { + match arg1.kind() { // At one point we'd like to elide all lifetimes here, they are // irrelevant for all diagnostics that use this output. // @@ -1509,7 +1509,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } let (is_simple_error, exp_found) = match values { ValuePairs::Terms(ExpectedFound { expected, found }) => { - match (expected.unpack(), found.unpack()) { + match (expected.kind(), found.kind()) { (ty::TermKind::Ty(expected), ty::TermKind::Ty(found)) => { let is_simple_err = expected.is_simple_text() && found.is_simple_text(); @@ -2156,7 +2156,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { return None; } - Some(match (exp_found.expected.unpack(), exp_found.found.unpack()) { + Some(match (exp_found.expected.kind(), exp_found.found.kind()) { (ty::TermKind::Ty(expected), ty::TermKind::Ty(found)) => { let (mut exp, mut fnd) = self.cmp(expected, found); // Use the terminal width as the basis to determine when to compress the printed 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 cb1c9c753690..bfef3340b323 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 @@ -215,7 +215,7 @@ 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.unpack() { + } else if let GenericArgKind::Type(_) = arg.kind() { // We don't replace lifetime or const params, only type params. self.new_infer().into() } else { @@ -347,7 +347,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { highlight: ty::print::RegionHighlightMode<'tcx>, ) -> InferenceDiagnosticsData { let tcx = self.tcx; - match term.unpack() { + match term.kind() { TermKind::Ty(ty) => { if let ty::Infer(ty::TyVar(ty_vid)) = *ty.kind() { let var_origin = self.infcx.type_var_origin(ty_vid); @@ -568,7 +568,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { return arg; } - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(_) => bug!("unexpected lifetime"), GenericArgKind::Type(_) => self.next_ty_var(DUMMY_SP).into(), GenericArgKind::Const(_) => self.next_const_var(DUMMY_SP).into(), @@ -803,7 +803,7 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { } impl<'tcx> CostCtxt<'tcx> { fn arg_cost(self, arg: GenericArg<'tcx>) -> usize { - match arg.unpack() { + match arg.kind() { GenericArgKind::Lifetime(_) => 0, // erased GenericArgKind::Type(ty) => self.ty_cost(ty), GenericArgKind::Const(_) => 3, // some non-zero value @@ -898,7 +898,7 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { return true; } - match (arg.unpack(), self.target.unpack()) { + match (arg.kind(), self.target.kind()) { (GenericArgKind::Type(inner_ty), TermKind::Ty(target_ty)) => { use ty::{Infer, TyVar}; match (inner_ty.kind(), target_ty.kind()) { @@ -929,7 +929,7 @@ impl<'a, 'tcx> FindInferSourceVisitor<'a, 'tcx> { if self.generic_arg_is_target(inner) { return true; } - match inner.unpack() { + match inner.kind() { GenericArgKind::Lifetime(_) => {} GenericArgKind::Type(ty) => { if matches!( 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 cdbb92f4c7ba..3804c13acce8 100644 --- a/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs +++ b/compiler/rustc_trait_selection/src/error_reporting/infer/suggest.rs @@ -664,8 +664,8 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> { let Some(found) = exp_found.found.args.get(1) else { return; }; - let expected = expected.unpack(); - let found = found.unpack(); + let expected = expected.kind(); + let found = found.kind(); // 3. Extract the tuple type from Fn trait and suggest the change. if let GenericArgKind::Type(expected) = expected && let GenericArgKind::Type(found) = found 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 b88040a0f983..9b5e421e0e48 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 @@ -2446,7 +2446,7 @@ impl<'a, 'tcx> TypeErrCtxt<'a, 'tcx> { } if let ty::Adt(def, args) = self_ty.kind() && let [arg] = &args[..] - && let ty::GenericArgKind::Type(ty) = arg.unpack() + && let ty::GenericArgKind::Type(ty) = arg.kind() && let ty::Adt(inner_def, _) = ty.kind() && inner_def == def { diff --git a/compiler/rustc_trait_selection/src/opaque_types.rs b/compiler/rustc_trait_selection/src/opaque_types.rs index 332204a0c5f0..d5bde9192d5e 100644 --- a/compiler/rustc_trait_selection/src/opaque_types.rs +++ b/compiler/rustc_trait_selection/src/opaque_types.rs @@ -81,7 +81,7 @@ pub fn check_opaque_type_parameter_valid<'tcx>( } for (i, arg) in opaque_type_key.iter_captured_args(tcx) { - let arg_is_param = match arg.unpack() { + let arg_is_param = match arg.kind() { GenericArgKind::Lifetime(lt) => match defining_scope_kind { DefiningScopeKind::HirTypeck => continue, DefiningScopeKind::MirBorrowck => { diff --git a/compiler/rustc_trait_selection/src/solve/delegate.rs b/compiler/rustc_trait_selection/src/solve/delegate.rs index eea311fe66eb..038cdc1a5649 100644 --- a/compiler/rustc_trait_selection/src/solve/delegate.rs +++ b/compiler/rustc_trait_selection/src/solve/delegate.rs @@ -108,7 +108,7 @@ impl<'tcx> rustc_next_trait_solver::delegate::SolverDelegate for SolverDelegate< arg: ty::GenericArg<'tcx>, span: Span, ) -> ty::GenericArg<'tcx> { - match arg.unpack() { + match arg.kind() { ty::GenericArgKind::Lifetime(_) => { self.next_region_var(RegionVariableOrigin::MiscVariable(span)).into() } diff --git a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs index 49a8b363b0ab..fda2c97ed56f 100644 --- a/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs +++ b/compiler/rustc_trait_selection/src/solve/inspect/analyse.rs @@ -207,7 +207,7 @@ impl<'a, 'tcx> InspectCandidate<'a, 'tcx> { let infcx = self.goal.infcx; match goal.predicate.kind().no_bound_vars() { Some(ty::PredicateKind::NormalizesTo(ty::NormalizesTo { alias, term })) => { - let unconstrained_term = match term.unpack() { + let unconstrained_term = match term.kind() { ty::TermKind::Ty(_) => infcx.next_ty_var(span).into(), ty::TermKind::Const(_) => infcx.next_const_var(span).into(), }; diff --git a/compiler/rustc_trait_selection/src/traits/select/mod.rs b/compiler/rustc_trait_selection/src/traits/select/mod.rs index 2be799735a89..3a2f9e8ca179 100644 --- a/compiler/rustc_trait_selection/src/traits/select/mod.rs +++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs @@ -1784,7 +1784,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> { if !generics.is_own_empty() && obligation.predicate.args[generics.parent_count..].iter().any(|&p| { p.has_non_region_infer() - && match p.unpack() { + && match p.kind() { ty::GenericArgKind::Const(ct) => { self.infcx.shallow_resolve_const(ct) != ct } diff --git a/compiler/rustc_trait_selection/src/traits/structural_normalize.rs b/compiler/rustc_trait_selection/src/traits/structural_normalize.rs index e6d5d336b8d5..3f7413454047 100644 --- a/compiler/rustc_trait_selection/src/traits/structural_normalize.rs +++ b/compiler/rustc_trait_selection/src/traits/structural_normalize.rs @@ -39,7 +39,7 @@ impl<'tcx> At<'_, 'tcx> { return Ok(term); } - let new_infer = match term.unpack() { + let new_infer = match term.kind() { ty::TermKind::Ty(_) => self.infcx.next_ty_var(self.cause.span).into(), ty::TermKind::Const(_) => self.infcx.next_const_var(self.cause.span).into(), }; diff --git a/compiler/rustc_trait_selection/src/traits/wf.rs b/compiler/rustc_trait_selection/src/traits/wf.rs index 08d3b92e9b5e..3018dad8e091 100644 --- a/compiler/rustc_trait_selection/src/traits/wf.rs +++ b/compiler/rustc_trait_selection/src/traits/wf.rs @@ -37,7 +37,7 @@ pub fn obligations<'tcx>( span: Span, ) -> Option> { // Handle the "cycle" case (see comment above) by bailing out if necessary. - let term = match term.unpack() { + let term = match term.kind() { TermKind::Ty(ty) => { match ty.kind() { ty::Infer(ty::TyVar(_)) => { diff --git a/compiler/rustc_ty_utils/src/representability.rs b/compiler/rustc_ty_utils/src/representability.rs index 98b1550e1a3d..33d334092ba9 100644 --- a/compiler/rustc_ty_utils/src/representability.rs +++ b/compiler/rustc_ty_utils/src/representability.rs @@ -74,7 +74,7 @@ fn representability_adt_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Representab // but the type parameters may cause a cycle with an upstream type let params_in_repr = tcx.params_in_repr(adt.did()); for (i, arg) in args.iter().enumerate() { - if let ty::GenericArgKind::Type(ty) = arg.unpack() { + if let ty::GenericArgKind::Type(ty) = arg.kind() { if params_in_repr.contains(i as u32) { rtry!(representability_ty(tcx, ty)); } @@ -104,7 +104,7 @@ fn params_in_repr_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, params_in_repr: &mut ty::Adt(adt, args) => { let inner_params_in_repr = tcx.params_in_repr(adt.did()); for (i, arg) in args.iter().enumerate() { - if let ty::GenericArgKind::Type(ty) = arg.unpack() { + if let ty::GenericArgKind::Type(ty) = arg.kind() { if inner_params_in_repr.contains(i as u32) { params_in_repr_ty(tcx, ty, params_in_repr); } diff --git a/compiler/rustc_ty_utils/src/ty.rs b/compiler/rustc_ty_utils/src/ty.rs index 0c49ddff39bc..330aaa25d135 100644 --- a/compiler/rustc_ty_utils/src/ty.rs +++ b/compiler/rustc_ty_utils/src/ty.rs @@ -274,7 +274,7 @@ fn unsizing_params_for_adt<'tcx>(tcx: TyCtxt<'tcx>, def_id: DefId) -> DenseBitSe let def = tcx.adt_def(def_id); let num_params = tcx.generics_of(def_id).count(); - let maybe_unsizing_param_idx = |arg: ty::GenericArg<'tcx>| match arg.unpack() { + let maybe_unsizing_param_idx = |arg: ty::GenericArg<'tcx>| match arg.kind() { ty::GenericArgKind::Type(ty) => match ty.kind() { ty::Param(p) => Some(p.index), _ => None, diff --git a/src/librustdoc/clean/mod.rs b/src/librustdoc/clean/mod.rs index 28dfa01534ea..0fbffc7808de 100644 --- a/src/librustdoc/clean/mod.rs +++ b/src/librustdoc/clean/mod.rs @@ -449,7 +449,7 @@ fn clean_middle_term<'tcx>( term: ty::Binder<'tcx, ty::Term<'tcx>>, cx: &mut DocContext<'tcx>, ) -> Term { - match term.skip_binder().unpack() { + match term.skip_binder().kind() { ty::TermKind::Ty(ty) => Term::Type(clean_middle_ty(term.rebind(ty), cx, None, None)), ty::TermKind::Const(c) => Term::Constant(clean_middle_const(term.rebind(c), cx)), } diff --git a/src/librustdoc/clean/utils.rs b/src/librustdoc/clean/utils.rs index 2e38b6cdc650..c58b07a5b673 100644 --- a/src/librustdoc/clean/utils.rs +++ b/src/librustdoc/clean/utils.rs @@ -124,7 +124,7 @@ pub(crate) fn clean_middle_generic_args<'tcx>( elision_has_failed_once_before = true; } - match arg.skip_binder().unpack() { + match arg.skip_binder().kind() { GenericArgKind::Lifetime(lt) => { Some(GenericArg::Lifetime(clean_middle_region(lt).unwrap_or(Lifetime::elided()))) } @@ -161,7 +161,7 @@ fn can_elide_generic_arg<'tcx>( default: ty::Binder<'tcx, ty::GenericArg<'tcx>>, ) -> bool { debug_assert_matches!( - (actual.skip_binder().unpack(), default.skip_binder().unpack()), + (actual.skip_binder().kind(), default.skip_binder().kind()), (ty::GenericArgKind::Lifetime(_), ty::GenericArgKind::Lifetime(_)) | (ty::GenericArgKind::Type(_), ty::GenericArgKind::Type(_)) | (ty::GenericArgKind::Const(_), ty::GenericArgKind::Const(_)) diff --git a/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs b/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs index 2643f850879c..9e09fb5bb439 100644 --- a/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs +++ b/src/tools/clippy/clippy_lints/src/arc_with_non_send_sync.rs @@ -50,7 +50,7 @@ impl<'tcx> LateLintPass<'tcx> for ArcWithNonSendSync { && let arg_ty = cx.typeck_results().expr_ty(arg) // make sure that the type is not and does not contain any type parameters && arg_ty.walk().all(|arg| { - !matches!(arg.unpack(), GenericArgKind::Type(ty) if matches!(ty.kind(), ty::Param(_))) + !matches!(arg.kind(), GenericArgKind::Type(ty) if matches!(ty.kind(), ty::Param(_))) }) && let Some(send) = cx.tcx.get_diagnostic_item(sym::Send) && let Some(sync) = cx.tcx.lang_items().sync_trait() diff --git a/src/tools/clippy/clippy_lints/src/derive.rs b/src/tools/clippy/clippy_lints/src/derive.rs index 3443b36eb4f3..062f7cef3a72 100644 --- a/src/tools/clippy/clippy_lints/src/derive.rs +++ b/src/tools/clippy/clippy_lints/src/derive.rs @@ -345,7 +345,7 @@ fn check_copy_clone<'tcx>(cx: &LateContext<'tcx>, item: &Item<'_>, trait_ref: &h if ty_adt.repr().packed() && ty_subs .iter() - .any(|arg| matches!(arg.unpack(), GenericArgKind::Type(_) | GenericArgKind::Const(_))) + .any(|arg| matches!(arg.kind(), GenericArgKind::Type(_) | GenericArgKind::Const(_))) { return; } diff --git a/src/tools/clippy/clippy_lints/src/eta_reduction.rs b/src/tools/clippy/clippy_lints/src/eta_reduction.rs index 645f93068496..6ed7c87915b2 100644 --- a/src/tools/clippy/clippy_lints/src/eta_reduction.rs +++ b/src/tools/clippy/clippy_lints/src/eta_reduction.rs @@ -306,7 +306,7 @@ fn has_late_bound_to_non_late_bound_regions(from_sig: FnSig<'_>, to_sig: FnSig<' return true; } for (from_arg, to_arg) in to_subs.iter().zip(from_subs) { - match (from_arg.unpack(), to_arg.unpack()) { + match (from_arg.kind(), to_arg.kind()) { (GenericArgKind::Lifetime(from_region), GenericArgKind::Lifetime(to_region)) => { if check_region(from_region, to_region) { return true; @@ -354,5 +354,5 @@ fn has_late_bound_to_non_late_bound_regions(from_sig: FnSig<'_>, to_sig: FnSig<' fn ty_has_static(ty: Ty<'_>) -> bool { ty.walk() - .any(|arg| matches!(arg.unpack(), GenericArgKind::Lifetime(re) if re.is_static())) + .any(|arg| matches!(arg.kind(), GenericArgKind::Lifetime(re) if re.is_static())) } diff --git a/src/tools/clippy/clippy_lints/src/functions/ref_option.rs b/src/tools/clippy/clippy_lints/src/functions/ref_option.rs index aba0fbcb9feb..106202d00d40 100644 --- a/src/tools/clippy/clippy_lints/src/functions/ref_option.rs +++ b/src/tools/clippy/clippy_lints/src/functions/ref_option.rs @@ -17,7 +17,7 @@ fn check_ty<'a>(cx: &LateContext<'a>, param: &rustc_hir::Ty<'a>, param_ty: Ty<'a && is_type_diagnostic_item(cx, *opt_ty, sym::Option) && let ty::Adt(_, opt_gen_args) = opt_ty.kind() && let [gen_arg] = opt_gen_args.as_slice() - && let GenericArgKind::Type(gen_ty) = gen_arg.unpack() + && let GenericArgKind::Type(gen_ty) = gen_arg.kind() && !gen_ty.is_ref() // Need to gen the original spans, so first parsing mid, and hir parsing afterward && let hir::TyKind::Ref(lifetime, hir::MutTy { ty, .. }) = param.kind diff --git a/src/tools/clippy/clippy_lints/src/let_underscore.rs b/src/tools/clippy/clippy_lints/src/let_underscore.rs index 916191b2a7b0..b72e14246db7 100644 --- a/src/tools/clippy/clippy_lints/src/let_underscore.rs +++ b/src/tools/clippy/clippy_lints/src/let_underscore.rs @@ -137,7 +137,7 @@ impl<'tcx> LateLintPass<'tcx> for LetUnderscore { && !local.span.in_external_macro(cx.tcx.sess.source_map()) { let init_ty = cx.typeck_results().expr_ty(init); - let contains_sync_guard = init_ty.walk().any(|inner| match inner.unpack() { + let contains_sync_guard = init_ty.walk().any(|inner| match inner.kind() { GenericArgKind::Type(inner_ty) => inner_ty .ty_adt_def() .is_some_and(|adt| paths::PARKING_LOT_GUARDS.iter().any(|path| path.matches(cx, adt.did()))), diff --git a/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs b/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs index 3ac2c9fc2b36..8c3f52542d91 100644 --- a/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs +++ b/src/tools/clippy/clippy_lints/src/matches/manual_unwrap_or.rs @@ -109,7 +109,7 @@ fn handle( && implements_trait(cx, expr_type, default_trait_id, &[]) // We check if the initial condition implements Default. && let Some(condition_ty) = cx.typeck_results().expr_ty(condition).walk().nth(1) - && let GenericArgKind::Type(condition_ty) = condition_ty.unpack() + && let GenericArgKind::Type(condition_ty) = condition_ty.kind() && implements_trait(cx, condition_ty, default_trait_id, &[]) && is_default_equivalent(cx, peel_blocks(body_none)) { 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 aa9be61bf4d4..c936c96f9719 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 @@ -108,7 +108,7 @@ fn find_match_true<'tcx>( fn try_get_generic_ty(ty: Ty<'_>, index: usize) -> Option> { if let ty::Adt(_, subs) = ty.kind() && let Some(sub) = subs.get(index) - && let GenericArgKind::Type(sub_ty) = sub.unpack() + && let GenericArgKind::Type(sub_ty) = sub.kind() { Some(sub_ty) } else { diff --git a/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs b/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs index 0f3ad40784d3..88b4d9b7d544 100644 --- a/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs +++ b/src/tools/clippy/clippy_lints/src/matches/significant_drop_in_scrutinee.rs @@ -208,12 +208,12 @@ impl<'a, 'tcx> SigDropChecker<'a, 'tcx> { // (to avoid false positive on `Ref<'a, MutexGuard>`) || (args .iter() - .all(|arg| !matches!(arg.unpack(), GenericArgKind::Lifetime(_))) + .all(|arg| !matches!(arg.kind(), GenericArgKind::Lifetime(_))) // some generic parameter has significant drop // (to avoid false negative on `Box>`) && args .iter() - .filter_map(|arg| match arg.unpack() { + .filter_map(|arg| match arg.kind() { GenericArgKind::Type(ty) => Some(ty), _ => None, }) diff --git a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs index 4c1ed6a1d833..2b75d6a8248a 100644 --- a/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs +++ b/src/tools/clippy/clippy_lints/src/methods/needless_collect.rs @@ -508,7 +508,7 @@ fn get_captured_ids(cx: &LateContext<'_>, ty: Ty<'_>) -> HirIdSet { match ty.kind() { ty::Adt(_, generics) => { for generic in *generics { - if let GenericArgKind::Type(ty) = generic.unpack() { + if let GenericArgKind::Type(ty) = generic.kind() { get_captured_ids_recursive(cx, ty, set); } } diff --git a/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs b/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs index fb4984914eb0..dbff08bc51c9 100644 --- a/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs +++ b/src/tools/clippy/clippy_lints/src/methods/unnecessary_sort_by.rs @@ -188,7 +188,7 @@ fn detect_lint(cx: &LateContext<'_>, expr: &Expr<'_>, recv: &Expr<'_>, arg: &Exp fn expr_borrows(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool { let ty = cx.typeck_results().expr_ty(expr); - matches!(ty.kind(), ty::Ref(..)) || ty.walk().any(|arg| matches!(arg.unpack(), GenericArgKind::Lifetime(_))) + matches!(ty.kind(), ty::Ref(..)) || ty.walk().any(|arg| matches!(arg.kind(), GenericArgKind::Lifetime(_))) } pub(super) fn check<'tcx>( 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 29a0d2950bc6..768bbebccd4a 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 @@ -608,7 +608,7 @@ fn can_change_type<'a>(cx: &LateContext<'a>, mut expr: &'a Expr<'a>, mut ty: Ty< } fn has_lifetime(ty: Ty<'_>) -> bool { - ty.walk().any(|t| matches!(t.unpack(), GenericArgKind::Lifetime(_))) + ty.walk().any(|t| matches!(t.kind(), GenericArgKind::Lifetime(_))) } /// Returns true if the named method is `Iterator::cloned` or `Iterator::copied`. @@ -643,7 +643,7 @@ fn is_to_string_on_string_like<'a>( if let Some(args) = cx.typeck_results().node_args_opt(call_expr.hir_id) && let [generic_arg] = args.as_slice() - && let GenericArgKind::Type(ty) = generic_arg.unpack() + && let GenericArgKind::Type(ty) = generic_arg.kind() && let Some(deref_trait_id) = cx.tcx.get_diagnostic_item(sym::Deref) && let Some(as_ref_trait_id) = cx.tcx.get_diagnostic_item(sym::AsRef) && (cx.get_associated_type(ty, deref_trait_id, sym::Target) == Some(cx.tcx.types.str_) diff --git a/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs b/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs index e579dd5947d7..2efb55b9880c 100644 --- a/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs +++ b/src/tools/clippy/clippy_lints/src/needless_borrows_for_generic_args.rs @@ -269,7 +269,7 @@ fn needless_borrow_count<'tcx>( .tcx .is_diagnostic_item(sym::IntoIterator, trait_predicate.trait_ref.def_id) && let ty::Param(param_ty) = trait_predicate.self_ty().kind() - && let GenericArgKind::Type(ty) = args_with_referent_ty[param_ty.index as usize].unpack() + && let GenericArgKind::Type(ty) = args_with_referent_ty[param_ty.index as usize].kind() && ty.is_array() && !msrv.meets(cx, msrvs::ARRAY_INTO_ITERATOR) { diff --git a/src/tools/clippy/clippy_lints/src/non_send_fields_in_send_ty.rs b/src/tools/clippy/clippy_lints/src/non_send_fields_in_send_ty.rs index 9542fed38759..8ff78ec7c580 100644 --- a/src/tools/clippy/clippy_lints/src/non_send_fields_in_send_ty.rs +++ b/src/tools/clippy/clippy_lints/src/non_send_fields_in_send_ty.rs @@ -172,7 +172,7 @@ impl NonSendField<'_> { /// Example: `MyStruct>` => `vec![P, Q, R]` fn collect_generic_params(ty: Ty<'_>) -> Vec> { ty.walk() - .filter_map(|inner| match inner.unpack() { + .filter_map(|inner| match inner.kind() { GenericArgKind::Type(inner_ty) => Some(inner_ty), _ => None, }) @@ -208,7 +208,7 @@ fn ty_allowed_with_raw_pointer_heuristic<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'t ty::Adt(_, args) => { if contains_pointer_like(cx, ty) { // descends only if ADT contains any raw pointers - args.iter().all(|generic_arg| match generic_arg.unpack() { + args.iter().all(|generic_arg| match generic_arg.kind() { GenericArgKind::Type(ty) => ty_allowed_with_raw_pointer_heuristic(cx, ty, send_trait), // Lifetimes and const generics are not solid part of ADT and ignored GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => true, @@ -226,7 +226,7 @@ fn ty_allowed_with_raw_pointer_heuristic<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'t /// Checks if the type contains any pointer-like types in args (including nested ones) fn contains_pointer_like<'tcx>(cx: &LateContext<'tcx>, target_ty: Ty<'tcx>) -> bool { for ty_node in target_ty.walk() { - if let GenericArgKind::Type(inner_ty) = ty_node.unpack() { + if let GenericArgKind::Type(inner_ty) = ty_node.kind() { match inner_ty.kind() { ty::RawPtr(_, _) => { return true; diff --git a/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs b/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs index 6de203e068b7..ba8f6354d976 100644 --- a/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs +++ b/src/tools/clippy/clippy_lints/src/only_used_in_recursion.rs @@ -385,7 +385,7 @@ impl<'tcx> LateLintPass<'tcx> for OnlyUsedInRecursion { fn has_matching_args(kind: FnKind, args: GenericArgsRef<'_>) -> bool { match kind { FnKind::Fn => true, - FnKind::TraitFn => args.iter().enumerate().all(|(idx, subst)| match subst.unpack() { + FnKind::TraitFn => args.iter().enumerate().all(|(idx, subst)| match subst.kind() { GenericArgKind::Lifetime(_) => true, GenericArgKind::Type(ty) => matches!(*ty.kind(), ty::Param(ty) if ty.index as usize == idx), GenericArgKind::Const(c) => matches!(c.kind(), ConstKind::Param(c) if c.index as usize == idx), diff --git a/src/tools/clippy/clippy_lints/src/returns.rs b/src/tools/clippy/clippy_lints/src/returns.rs index ab9b0f88f936..6bc5af268ff8 100644 --- a/src/tools/clippy/clippy_lints/src/returns.rs +++ b/src/tools/clippy/clippy_lints/src/returns.rs @@ -487,7 +487,7 @@ fn last_statement_borrows<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) .skip_binder() .output() .walk() - .any(|arg| matches!(arg.unpack(), GenericArgKind::Lifetime(re) if !re.is_static())) + .any(|arg| matches!(arg.kind(), GenericArgKind::Lifetime(re) if !re.is_static())) { ControlFlow::Break(()) } else { 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 f3fea3add592..521754f7bab7 100644 --- a/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs +++ b/src/tools/clippy/clippy_lints/src/significant_drop_tightening.rs @@ -184,7 +184,7 @@ impl<'cx, 'others, 'tcx> AttrChecker<'cx, 'others, 'tcx> { } } for generic_arg in *b { - if let GenericArgKind::Type(ty) = generic_arg.unpack() + if let GenericArgKind::Type(ty) = generic_arg.kind() && self.has_sig_drop_attr(ty, depth) { return true; diff --git a/src/tools/clippy/clippy_lints/src/use_self.rs b/src/tools/clippy/clippy_lints/src/use_self.rs index 743f54ca993a..aeda864b7eb5 100644 --- a/src/tools/clippy/clippy_lints/src/use_self.rs +++ b/src/tools/clippy/clippy_lints/src/use_self.rs @@ -319,7 +319,7 @@ fn same_lifetimes<'tcx>(a: MiddleTy<'tcx>, b: MiddleTy<'tcx>) -> bool { args_a .iter() .zip(args_b.iter()) - .all(|(arg_a, arg_b)| match (arg_a.unpack(), arg_b.unpack()) { + .all(|(arg_a, arg_b)| match (arg_a.kind(), arg_b.kind()) { // TODO: Handle inferred lifetimes (GenericArgKind::Lifetime(inner_a), GenericArgKind::Lifetime(inner_b)) => inner_a == inner_b, (GenericArgKind::Type(type_a), GenericArgKind::Type(type_b)) => same_lifetimes(type_a, type_b), @@ -337,7 +337,7 @@ fn has_no_lifetime(ty: MiddleTy<'_>) -> bool { &Adt(_, args) => !args .iter() // TODO: Handle inferred lifetimes - .any(|arg| matches!(arg.unpack(), GenericArgKind::Lifetime(..))), + .any(|arg| matches!(arg.kind(), GenericArgKind::Lifetime(..))), _ => true, } } diff --git a/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs b/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs index 441c68848523..70b3c03d2bbd 100644 --- a/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs +++ b/src/tools/clippy/clippy_lints_internal/src/msrv_attr_impl.rs @@ -37,7 +37,7 @@ impl LateLintPass<'_> for MsrvAttrImpl { .type_of(f.did) .instantiate_identity() .walk() - .filter(|t| matches!(t.unpack(), GenericArgKind::Type(_))) + .filter(|t| matches!(t.kind(), GenericArgKind::Type(_))) .any(|t| internal_paths::MSRV_STACK.matches_ty(cx, t.expect_ty())) }) && !items.iter().any(|item| item.ident.name.as_str() == "check_attributes") diff --git a/src/tools/clippy/clippy_utils/src/lib.rs b/src/tools/clippy/clippy_utils/src/lib.rs index 3a3191765710..8716ee48c88f 100644 --- a/src/tools/clippy/clippy_utils/src/lib.rs +++ b/src/tools/clippy/clippy_utils/src/lib.rs @@ -3316,7 +3316,7 @@ pub fn leaks_droppable_temporary_with_limited_lifetime<'tcx>(cx: &LateContext<'t if temporary_ty.has_significant_drop(cx.tcx, cx.typing_env()) && temporary_ty .walk() - .any(|arg| matches!(arg.unpack(), GenericArgKind::Lifetime(re) if !re.is_static())) + .any(|arg| matches!(arg.kind(), GenericArgKind::Lifetime(re) if !re.is_static())) { ControlFlow::Break(()) } else { diff --git a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs index 45da266fd8a9..bb04520c6b7d 100644 --- a/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs +++ b/src/tools/clippy/clippy_utils/src/qualify_min_const_fn.rs @@ -55,7 +55,7 @@ pub fn is_min_const_fn<'tcx>(cx: &LateContext<'tcx>, body: &Body<'tcx>, msrv: Ms fn check_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>, span: Span, msrv: Msrv) -> McfResult { for arg in ty.walk() { - let ty = match arg.unpack() { + let ty = match arg.kind() { GenericArgKind::Type(ty) => ty, // No constraints on lifetimes or constants, except potentially diff --git a/src/tools/clippy/clippy_utils/src/ty/mod.rs b/src/tools/clippy/clippy_utils/src/ty/mod.rs index c50ad17bfad1..61e70b3fa0bc 100644 --- a/src/tools/clippy/clippy_utils/src/ty/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ty/mod.rs @@ -78,7 +78,7 @@ pub fn can_partially_move_ty<'tcx>(cx: &LateContext<'tcx>, ty: Ty<'tcx>) -> bool /// Walks into `ty` and returns `true` if any inner type is an instance of the given adt /// constructor. pub fn contains_adt_constructor<'tcx>(ty: Ty<'tcx>, adt: AdtDef<'tcx>) -> bool { - ty.walk().any(|inner| match inner.unpack() { + ty.walk().any(|inner| match inner.kind() { GenericArgKind::Type(inner_ty) => inner_ty.ty_adt_def() == Some(adt), GenericArgKind::Lifetime(_) | GenericArgKind::Const(_) => false, }) @@ -96,7 +96,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<' needle: Ty<'tcx>, seen: &mut FxHashSet, ) -> bool { - ty.walk().any(|inner| match inner.unpack() { + ty.walk().any(|inner| match inner.kind() { GenericArgKind::Type(inner_ty) => { if inner_ty == needle { return true; @@ -129,7 +129,7 @@ pub fn contains_ty_adt_constructor_opaque<'tcx>(cx: &LateContext<'tcx>, ty: Ty<' // For `impl Trait`, it will register a predicate of `::Assoc = U`, // so we check the term for `U`. ty::ClauseKind::Projection(projection_predicate) => { - if let ty::TermKind::Ty(ty) = projection_predicate.term.unpack() + if let ty::TermKind::Ty(ty) = projection_predicate.term.kind() && contains_ty_adt_constructor_opaque_inner(cx, ty, needle, seen) { return true; @@ -526,7 +526,7 @@ pub fn same_type_and_consts<'tcx>(a: Ty<'tcx>, b: Ty<'tcx>) -> bool { args_a .iter() .zip(args_b.iter()) - .all(|(arg_a, arg_b)| match (arg_a.unpack(), arg_b.unpack()) { + .all(|(arg_a, arg_b)| match (arg_a.kind(), arg_b.kind()) { (GenericArgKind::Const(inner_a), GenericArgKind::Const(inner_b)) => inner_a == inner_b, (GenericArgKind::Type(type_a), GenericArgKind::Type(type_b)) => { same_type_and_consts(type_a, type_b) @@ -996,7 +996,7 @@ fn assert_generic_args_match<'tcx>(tcx: TyCtxt<'tcx>, did: DefId, args: &[Generi if let Some((idx, (param, arg))) = params .clone() - .zip(args.iter().map(|&x| x.unpack())) + .zip(args.iter().map(|&x| x.kind())) .enumerate() .find(|(_, (param, arg))| match (param, arg) { (GenericParamDefKind::Lifetime, GenericArgKind::Lifetime(_)) diff --git a/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs b/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs index 6e3586623277..84df36c75bf8 100644 --- a/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs +++ b/src/tools/clippy/clippy_utils/src/ty/type_certainty/mod.rs @@ -326,5 +326,5 @@ fn adt_def_id(ty: Ty<'_>) -> Option { fn contains_param(ty: Ty<'_>, index: u32) -> bool { ty.walk() - .any(|arg| matches!(arg.unpack(), GenericArgKind::Type(ty) if ty.is_param(index))) + .any(|arg| matches!(arg.kind(), GenericArgKind::Type(ty) if ty.is_param(index))) } diff --git a/src/tools/miri/src/machine.rs b/src/tools/miri/src/machine.rs index 5d5c19a24fa3..e7a2cb25159a 100644 --- a/src/tools/miri/src/machine.rs +++ b/src/tools/miri/src/machine.rs @@ -1775,7 +1775,7 @@ impl<'tcx> Machine<'tcx> for MiriMachine<'tcx> { let is_generic = instance .args .into_iter() - .any(|kind| !matches!(kind.unpack(), ty::GenericArgKind::Lifetime(_))); + .any(|arg| !matches!(arg.kind(), ty::GenericArgKind::Lifetime(_))); let can_be_inlined = matches!( ecx.tcx.sess.opts.unstable_opts.cross_crate_inline_threshold, InliningThreshold::Always From 5f3ae06db07adcd6885558aa1f33ec2711fe0651 Mon Sep 17 00:00:00 2001 From: Michael Goulet Date: Sat, 24 May 2025 17:41:09 +0000 Subject: [PATCH 40/46] Fix some var names --- compiler/rustc_borrowck/src/diagnostics/region_name.rs | 6 +++--- compiler/rustc_hir_analysis/src/outlives/mod.rs | 4 ++-- compiler/rustc_hir_analysis/src/outlives/utils.rs | 6 +++--- .../rustc_hir_analysis/src/variance/constraints.rs | 8 ++++---- .../src/fn_ctxt/adjust_fulfillment_errors.rs | 10 +++++----- compiler/rustc_infer/src/infer/outlives/obligations.rs | 4 ++-- compiler/rustc_middle/src/ty/generic_args.rs | 2 +- compiler/rustc_middle/src/ty/opaque_types.rs | 6 +++--- compiler/rustc_middle/src/ty/typeck_results.rs | 4 ++-- compiler/rustc_middle/src/ty/util.rs | 4 ++-- .../rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs | 4 ++-- compiler/rustc_type_ir/src/binder.rs | 6 +++--- compiler/rustc_type_ir/src/flags.rs | 4 ++-- 13 files changed, 34 insertions(+), 34 deletions(-) diff --git a/compiler/rustc_borrowck/src/diagnostics/region_name.rs b/compiler/rustc_borrowck/src/diagnostics/region_name.rs index 4aa9e90ab885..487f78058a8c 100644 --- a/compiler/rustc_borrowck/src/diagnostics/region_name.rs +++ b/compiler/rustc_borrowck/src/diagnostics/region_name.rs @@ -606,8 +606,8 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { hir_args: &'hir hir::GenericArgs<'hir>, search_stack: &mut Vec<(Ty<'tcx>, &'hir hir::Ty<'hir>)>, ) -> Option<&'hir hir::Lifetime> { - for (kind, hir_arg) in iter::zip(args, hir_args.args) { - match (kind.kind(), hir_arg) { + for (arg, hir_arg) in iter::zip(args, hir_args.args) { + match (arg.kind(), hir_arg) { (GenericArgKind::Lifetime(r), hir::GenericArg::Lifetime(lt)) => { if r.as_var() == needle_fr { return Some(lt); @@ -631,7 +631,7 @@ impl<'tcx> MirBorrowckCtxt<'_, '_, 'tcx> { ) => { self.dcx().span_delayed_bug( hir_arg.span(), - format!("unmatched arg and hir arg: found {kind:?} vs {hir_arg:?}"), + format!("unmatched arg and hir arg: found {arg:?} vs {hir_arg:?}"), ); } } diff --git a/compiler/rustc_hir_analysis/src/outlives/mod.rs b/compiler/rustc_hir_analysis/src/outlives/mod.rs index fbf973a49dc7..499f5572f470 100644 --- a/compiler/rustc_hir_analysis/src/outlives/mod.rs +++ b/compiler/rustc_hir_analysis/src/outlives/mod.rs @@ -69,8 +69,8 @@ fn inferred_outlives_crate(tcx: TyCtxt<'_>, (): ()) -> CratePredicatesMap<'_> { .map(|(&def_id, set)| { let predicates = &*tcx.arena.alloc_from_iter(set.as_ref().skip_binder().iter().filter_map( - |(ty::OutlivesPredicate(kind1, region2), &span)| { - match kind1.kind() { + |(ty::OutlivesPredicate(arg1, region2), &span)| { + match arg1.kind() { GenericArgKind::Type(ty1) => Some(( ty::ClauseKind::TypeOutlives(ty::OutlivesPredicate(ty1, *region2)) .upcast(tcx), diff --git a/compiler/rustc_hir_analysis/src/outlives/utils.rs b/compiler/rustc_hir_analysis/src/outlives/utils.rs index 3fd1dbb3a8a0..301f5de9424e 100644 --- a/compiler/rustc_hir_analysis/src/outlives/utils.rs +++ b/compiler/rustc_hir_analysis/src/outlives/utils.rs @@ -14,7 +14,7 @@ pub(crate) type RequiredPredicates<'tcx> = /// outlives_component and add it to `required_predicates` pub(crate) fn insert_outlives_predicate<'tcx>( tcx: TyCtxt<'tcx>, - kind: GenericArg<'tcx>, + arg: GenericArg<'tcx>, outlived_region: Region<'tcx>, span: Span, required_predicates: &mut RequiredPredicates<'tcx>, @@ -25,7 +25,7 @@ pub(crate) fn insert_outlives_predicate<'tcx>( return; } - match kind.kind() { + match arg.kind() { GenericArgKind::Type(ty) => { // `T: 'outlived_region` for some type `T` // But T could be a lot of things: @@ -135,7 +135,7 @@ pub(crate) fn insert_outlives_predicate<'tcx>( if !is_free_region(r) { return; } - required_predicates.entry(ty::OutlivesPredicate(kind, outlived_region)).or_insert(span); + required_predicates.entry(ty::OutlivesPredicate(arg, outlived_region)).or_insert(span); } GenericArgKind::Const(_) => { diff --git a/compiler/rustc_hir_analysis/src/variance/constraints.rs b/compiler/rustc_hir_analysis/src/variance/constraints.rs index 68ceec384b95..960ec7f66ab1 100644 --- a/compiler/rustc_hir_analysis/src/variance/constraints.rs +++ b/compiler/rustc_hir_analysis/src/variance/constraints.rs @@ -200,8 +200,8 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { // Trait are always invariant so we can take advantage of that. let variance_i = self.invariant(variance); - for k in args { - match k.kind() { + for arg in args { + match arg.kind() { GenericArgKind::Lifetime(lt) => { self.add_constraints_from_region(current, lt, variance_i) } @@ -373,7 +373,7 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { (None, Some(self.tcx().variances_of(def_id))) }; - for (i, k) in args.iter().enumerate() { + for (i, arg) in args.iter().enumerate() { let variance_decl = if let Some(InferredIndex(start)) = local { // Parameter on an item defined within current crate: // variance not yet inferred, so return a symbolic @@ -389,7 +389,7 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> { "add_constraints_from_args: variance_decl={:?} variance_i={:?}", variance_decl, variance_i ); - match k.kind() { + match arg.kind() { GenericArgKind::Lifetime(lt) => { self.add_constraints_from_region(current, lt, variance_i) } diff --git a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs index db6482fe4faf..2bc007b3ad4b 100644 --- a/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs +++ b/compiler/rustc_hir_typeck/src/fn_ctxt/adjust_fulfillment_errors.rs @@ -357,7 +357,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { &self, error: &mut traits::FulfillmentError<'tcx>, def_id: DefId, - param: ty::GenericArg<'tcx>, + arg: ty::GenericArg<'tcx>, qpath: &hir::QPath<'tcx>, ) -> bool { match qpath { @@ -365,7 +365,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { for segment in path.segments.iter().rev() { if let Res::Def(kind, def_id) = segment.res && !matches!(kind, DefKind::Mod | DefKind::ForeignMod) - && self.point_at_generic_if_possible(error, def_id, param, segment) + && self.point_at_generic_if_possible(error, def_id, arg, segment) { return true; } @@ -373,7 +373,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { // Handle `Self` param specifically, since it's separated in // the path representation if let Some(self_ty) = self_ty - && let ty::GenericArgKind::Type(ty) = param.kind() + && let ty::GenericArgKind::Type(ty) = arg.kind() && ty == self.tcx.types.self_param { error.obligation.cause.span = self_ty @@ -384,12 +384,12 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> { } } hir::QPath::TypeRelative(self_ty, segment) => { - if self.point_at_generic_if_possible(error, def_id, param, segment) { + if self.point_at_generic_if_possible(error, def_id, arg, segment) { return true; } // Handle `Self` param specifically, since it's separated in // the path representation - if let ty::GenericArgKind::Type(ty) = param.kind() + if let ty::GenericArgKind::Type(ty) = arg.kind() && ty == self.tcx.types.self_param { error.obligation.cause.span = self_ty diff --git a/compiler/rustc_infer/src/infer/outlives/obligations.rs b/compiler/rustc_infer/src/infer/outlives/obligations.rs index 0d2732a3b6d3..10827c9fd037 100644 --- a/compiler/rustc_infer/src/infer/outlives/obligations.rs +++ b/compiler/rustc_infer/src/infer/outlives/obligations.rs @@ -503,8 +503,8 @@ where opt_variances: Option<&[ty::Variance]>, ) { let constraint = origin.to_constraint_category(); - for (index, k) in args.iter().enumerate() { - match k.kind() { + for (index, arg) in args.iter().enumerate() { + match arg.kind() { GenericArgKind::Lifetime(lt) => { let variance = if let Some(variances) = opt_variances { variances[index] diff --git a/compiler/rustc_middle/src/ty/generic_args.rs b/compiler/rustc_middle/src/ty/generic_args.rs index b7d3fd81b111..5e038f916750 100644 --- a/compiler/rustc_middle/src/ty/generic_args.rs +++ b/compiler/rustc_middle/src/ty/generic_args.rs @@ -527,7 +527,7 @@ impl<'tcx> GenericArgs<'tcx> { /// Returns generic arguments that are not lifetimes. #[inline] pub fn non_erasable_generics(&self) -> impl DoubleEndedIterator> { - self.iter().filter_map(|k| match k.kind() { + self.iter().filter_map(|arg| match arg.kind() { ty::GenericArgKind::Lifetime(_) => None, generic => Some(generic), }) diff --git a/compiler/rustc_middle/src/ty/opaque_types.rs b/compiler/rustc_middle/src/ty/opaque_types.rs index 5c05bdb08eba..2b024b7b6cbb 100644 --- a/compiler/rustc_middle/src/ty/opaque_types.rs +++ b/compiler/rustc_middle/src/ty/opaque_types.rs @@ -120,7 +120,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { } } - match self.map.get(&r.into()).map(|k| k.kind()) { + match self.map.get(&r.into()).map(|arg| arg.kind()) { Some(GenericArgKind::Lifetime(r1)) => r1, Some(u) => panic!("region mapped to unexpected kind: {u:?}"), None if self.do_not_error => self.tcx.lifetimes.re_static, @@ -162,7 +162,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { ty::Param(param) => { // Look it up in the generic parameters list. - match self.map.get(&ty.into()).map(|k| k.kind()) { + match self.map.get(&ty.into()).map(|arg| arg.kind()) { // Found it in the generic parameters list; replace with the parameter from the // opaque type. Some(GenericArgKind::Type(t1)) => t1, @@ -195,7 +195,7 @@ impl<'tcx> TypeFolder> for ReverseMapper<'tcx> { match ct.kind() { ty::ConstKind::Param(..) => { // Look it up in the generic parameters list. - match self.map.get(&ct.into()).map(|k| k.kind()) { + match self.map.get(&ct.into()).map(|arg| arg.kind()) { // Found it in the generic parameters list, replace with the parameter from the // opaque type. Some(GenericArgKind::Const(c1)) => c1, diff --git a/compiler/rustc_middle/src/ty/typeck_results.rs b/compiler/rustc_middle/src/ty/typeck_results.rs index 9627188c334e..cc3887079d81 100644 --- a/compiler/rustc_middle/src/ty/typeck_results.rs +++ b/compiler/rustc_middle/src/ty/typeck_results.rs @@ -777,8 +777,8 @@ impl<'tcx> IsIdentity for CanonicalUserType<'tcx> { return false; } - iter::zip(user_args.args, BoundVar::ZERO..).all(|(kind, cvar)| { - match kind.kind() { + iter::zip(user_args.args, BoundVar::ZERO..).all(|(arg, cvar)| { + match arg.kind() { GenericArgKind::Type(ty) => match ty.kind() { ty::Bound(debruijn, b) => { // We only allow a `ty::INNERMOST` index in generic parameters. diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index 06fd8a294d0e..461d92f80063 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -516,8 +516,8 @@ impl<'tcx> TyCtxt<'tcx> { let item_args = ty::GenericArgs::identity_for_item(self, def.did()); let result = iter::zip(item_args, impl_args) - .filter(|&(_, k)| { - match k.kind() { + .filter(|&(_, arg)| { + match arg.kind() { GenericArgKind::Lifetime(region) => match region.kind() { ty::ReEarlyParam(ebr) => { !impl_generics.region_param(ebr, self).pure_wrt_drop diff --git a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs index e696da9c2b72..2924208173d2 100644 --- a/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs +++ b/compiler/rustc_next_trait_solver/src/solve/eval_ctxt/mod.rs @@ -817,8 +817,8 @@ where /// Returns a ty infer or a const infer depending on whether `kind` is a `Ty` or `Const`. /// If `kind` is an integer inference variable this will still return a ty infer var. - pub(super) fn next_term_infer_of_kind(&mut self, kind: I::Term) -> I::Term { - match kind.kind() { + pub(super) fn next_term_infer_of_kind(&mut self, term: I::Term) -> I::Term { + match term.kind() { ty::TermKind::Ty(_) => self.next_ty_infer().into(), ty::TermKind::Const(_) => self.next_const_infer().into(), } diff --git a/compiler/rustc_type_ir/src/binder.rs b/compiler/rustc_type_ir/src/binder.rs index 000cf1e1fd8b..1e6ca0dcf5d3 100644 --- a/compiler/rustc_type_ir/src/binder.rs +++ b/compiler/rustc_type_ir/src/binder.rs @@ -676,7 +676,7 @@ impl<'a, I: Interner> TypeFolder for ArgFolder<'a, I> { // the specialized routine `ty::replace_late_regions()`. match r.kind() { ty::ReEarlyParam(data) => { - let rk = self.args.get(data.index() as usize).map(|k| k.kind()); + let rk = self.args.get(data.index() as usize).map(|arg| arg.kind()); match rk { Some(ty::GenericArgKind::Lifetime(lt)) => self.shift_region_through_binders(lt), Some(other) => self.region_param_expected(data, r, other), @@ -716,7 +716,7 @@ impl<'a, I: Interner> TypeFolder for ArgFolder<'a, I> { impl<'a, I: Interner> ArgFolder<'a, I> { fn ty_for_param(&self, p: I::ParamTy, source_ty: I::Ty) -> I::Ty { // Look up the type in the args. It really should be in there. - let opt_ty = self.args.get(p.index() as usize).map(|k| k.kind()); + let opt_ty = self.args.get(p.index() as usize).map(|arg| arg.kind()); let ty = match opt_ty { Some(ty::GenericArgKind::Type(ty)) => ty, Some(kind) => self.type_param_expected(p, source_ty, kind), @@ -753,7 +753,7 @@ impl<'a, I: Interner> ArgFolder<'a, I> { fn const_for_param(&self, p: I::ParamConst, source_ct: I::Const) -> I::Const { // Look up the const in the args. It really should be in there. - let opt_ct = self.args.get(p.index() as usize).map(|k| k.kind()); + let opt_ct = self.args.get(p.index() as usize).map(|arg| arg.kind()); let ct = match opt_ct { Some(ty::GenericArgKind::Const(ct)) => ct, Some(kind) => self.const_param_expected(p, source_ct, kind), diff --git a/compiler/rustc_type_ir/src/flags.rs b/compiler/rustc_type_ir/src/flags.rs index 7ed0f92b6398..37cc2baa402a 100644 --- a/compiler/rustc_type_ir/src/flags.rs +++ b/compiler/rustc_type_ir/src/flags.rs @@ -479,8 +479,8 @@ impl FlagComputation { } fn add_args(&mut self, args: &[I::GenericArg]) { - for kind in args { - match kind.kind() { + for arg in args { + match arg.kind() { ty::GenericArgKind::Type(ty) => self.add_ty(ty), ty::GenericArgKind::Lifetime(lt) => self.add_region(lt), ty::GenericArgKind::Const(ct) => self.add_const(ct), From e25cf45daa8069ca984b2e4132774681461e4231 Mon Sep 17 00:00:00 2001 From: Jieyou Xu Date: Tue, 27 May 2025 00:52:38 +0800 Subject: [PATCH 41/46] triagebot: label `src/llvm-project` and `rustc_{llvm, codegen_llvm}` changes with `A-LLVM` --- triagebot.toml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/triagebot.toml b/triagebot.toml index 9d7a0ef5aec0..572568d5d52b 100644 --- a/triagebot.toml +++ b/triagebot.toml @@ -593,6 +593,13 @@ trigger_files = [ "src/doc/rustc-dev-guide", ] +[autolabel."A-LLVM"] +trigger_files = [ + "src/llvm-project", + "compiler/rustc_llvm", + "compiler/rustc_codegen_llvm", +] + [notify-zulip."I-prioritize"] zulip_stream = 245100 # #t-compiler/prioritization/alerts topic = "#{number} {title}" From 2490bba2dd41a96f1fff443cdcf899c69d1b7524 Mon Sep 17 00:00:00 2001 From: Jieyou Xu Date: Tue, 27 May 2025 20:31:34 +0800 Subject: [PATCH 42/46] Bump master `stage0` compiler To include beta backport of revert which should undo linker warnings during bootstrapping of Windows MSVC targets due to . --- src/stage0 | 920 ++++++++++++++++++++++++++--------------------------- 1 file changed, 460 insertions(+), 460 deletions(-) diff --git a/src/stage0 b/src/stage0 index 8ca6860490ca..4cff7bafa5de 100644 --- a/src/stage0 +++ b/src/stage0 @@ -13,466 +13,466 @@ nightly_branch=master # All changes below this comment will be overridden the next time the # tool is executed. -compiler_date=2025-05-12 +compiler_date=2025-05-26 compiler_version=beta -rustfmt_date=2025-05-12 +rustfmt_date=2025-05-27 rustfmt_version=nightly -dist/2025-05-12/rustc-beta-aarch64-apple-darwin.tar.gz=e5ec8453efc1f51d37d5031d87d45a327647614b00993d1b7f477c7d2e6c7b16 -dist/2025-05-12/rustc-beta-aarch64-apple-darwin.tar.xz=6711902d59079cd57d6f93e951d3028acb5cef0f59a2ab87e1688edee96f6471 -dist/2025-05-12/rustc-beta-aarch64-pc-windows-msvc.tar.gz=7168682081144b8eacab42efe6c9ddb9ee6964712d271988345e63d2d6faac9c -dist/2025-05-12/rustc-beta-aarch64-pc-windows-msvc.tar.xz=5794e0d6bed097d349e138c7602a083f4025604f711328c0a4548e27f191444b 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+dist/2025-05-27/rustc-nightly-x86_64-unknown-linux-gnu.tar.gz=8749217fd22d81ee2f380b1af63116e4c540fd11f617752e552f66568d50868c +dist/2025-05-27/rustc-nightly-x86_64-unknown-linux-gnu.tar.xz=545ff3e0ac1c7c303b47bc062d029033a3d8de77c6fb54bad39a6a34b099c711 +dist/2025-05-27/rustc-nightly-x86_64-unknown-linux-musl.tar.gz=d146af52aa7fad3b198b9dd5242793bfc2dc8aad81642bf34702e409d5ae7f3b +dist/2025-05-27/rustc-nightly-x86_64-unknown-linux-musl.tar.xz=d72ed1096917a5789f26564ddc920c3fdcd29056cf97452371e5141bcc2c8a8e +dist/2025-05-27/rustc-nightly-x86_64-unknown-netbsd.tar.gz=94b608796d12feff92c54f942318e711879d86b1a3114a710b8366b7415ae025 +dist/2025-05-27/rustc-nightly-x86_64-unknown-netbsd.tar.xz=7d870360a35a34dffede096d62734d97a7bf60d0661e638f73d913cb93bd49ec From 3f526eeec4efe8a31154b7b20b64d99c1badce9e Mon Sep 17 00:00:00 2001 From: Zalathar Date: Tue, 27 May 2025 23:25:57 +1000 Subject: [PATCH 43/46] coverage: Revert "unused local file IDs" due to empty function names This reverts commit 3b22c21dd8c30f499051fe7a758ca0e5d81eb638, reversing changes made to 5f292eea6d63abbd26f1e6e00a0b8cf21d828d7d. --- .../src/coverageinfo/ffi.rs | 26 +++-------- .../src/coverageinfo/mapgen/covfun.rs | 44 +++++-------------- .../src/coverageinfo/mapgen/spans.rs | 28 ++++++++++-- compiler/rustc_interface/src/tests.rs | 3 +- .../rustc_mir_transform/src/coverage/spans.rs | 38 +--------------- compiler/rustc_session/src/config.rs | 5 --- compiler/rustc_session/src/options.rs | 1 - compiler/rustc_session/src/session.rs | 5 --- tests/coverage/async_closure.cov-map | 21 +++++---- tests/coverage/unused-local-file.coverage | 7 --- tests/coverage/unused-local-file.rs | 22 ---------- ...ch_match_arms.main.InstrumentCoverage.diff | 2 +- ...ument_coverage.bar.InstrumentCoverage.diff | 2 +- ...ment_coverage.main.InstrumentCoverage.diff | 4 +- ...rage_cleanup.main.CleanupPostBorrowck.diff | 4 +- ...erage_cleanup.main.InstrumentCoverage.diff | 4 +- 16 files changed, 62 insertions(+), 154 deletions(-) delete mode 100644 tests/coverage/unused-local-file.coverage delete mode 100644 tests/coverage/unused-local-file.rs diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs index c207df2fb0b4..f6000e728400 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/ffi.rs @@ -155,20 +155,6 @@ pub(crate) struct Regions { impl Regions { /// Returns true if none of this structure's tables contain any regions. pub(crate) fn has_no_regions(&self) -> bool { - // Every region has a span, so if there are no spans then there are no regions. - self.all_cov_spans().next().is_none() - } - - pub(crate) fn all_cov_spans(&self) -> impl Iterator { - macro_rules! iter_cov_spans { - ( $( $regions:expr ),* $(,)? ) => { - std::iter::empty() - $( - .chain( $regions.iter().map(|region| ®ion.cov_span) ) - )* - } - } - let Self { code_regions, expansion_regions, @@ -177,13 +163,11 @@ impl Regions { mcdc_decision_regions, } = self; - iter_cov_spans!( - code_regions, - expansion_regions, - branch_regions, - mcdc_branch_regions, - mcdc_decision_regions, - ) + code_regions.is_empty() + && expansion_regions.is_empty() + && branch_regions.is_empty() + && mcdc_branch_regions.is_empty() + && mcdc_decision_regions.is_empty() } } diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs index d3a815fabe7a..7bdbc6859529 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/covfun.rs @@ -11,7 +11,6 @@ use rustc_abi::Align; use rustc_codegen_ssa::traits::{ BaseTypeCodegenMethods as _, ConstCodegenMethods, StaticCodegenMethods, }; -use rustc_index::IndexVec; use rustc_middle::mir::coverage::{ BasicCoverageBlock, CovTerm, CoverageIdsInfo, Expression, FunctionCoverageInfo, Mapping, MappingKind, Op, @@ -105,16 +104,6 @@ fn fill_region_tables<'tcx>( ids_info: &'tcx CoverageIdsInfo, covfun: &mut CovfunRecord<'tcx>, ) { - // If this function is unused, replace all counters with zero. - let counter_for_bcb = |bcb: BasicCoverageBlock| -> ffi::Counter { - let term = if covfun.is_used { - ids_info.term_for_bcb[bcb].expect("every BCB in a mapping was given a term") - } else { - CovTerm::Zero - }; - ffi::Counter::from_term(term) - }; - // Currently a function's mappings must all be in the same file, so use the // first mapping's span to determine the file. let source_map = tcx.sess.source_map(); @@ -126,12 +115,6 @@ fn fill_region_tables<'tcx>( let local_file_id = covfun.virtual_file_mapping.push_file(&source_file); - // If this testing flag is set, add an extra unused entry to the local - // file table, to help test the code for detecting unused file IDs. - if tcx.sess.coverage_inject_unused_local_file() { - covfun.virtual_file_mapping.push_file(&source_file); - } - // In rare cases, _all_ of a function's spans are discarded, and coverage // codegen needs to handle that gracefully to avoid #133606. // It's hard for tests to trigger this organically, so instead we set @@ -152,6 +135,16 @@ fn fill_region_tables<'tcx>( // For each counter/region pair in this function+file, convert it to a // form suitable for FFI. for &Mapping { ref kind, span } in &fn_cov_info.mappings { + // If this function is unused, replace all counters with zero. + let counter_for_bcb = |bcb: BasicCoverageBlock| -> ffi::Counter { + let term = if covfun.is_used { + ids_info.term_for_bcb[bcb].expect("every BCB in a mapping was given a term") + } else { + CovTerm::Zero + }; + ffi::Counter::from_term(term) + }; + let Some(coords) = make_coords(span) else { continue }; let cov_span = coords.make_coverage_span(local_file_id); @@ -184,19 +177,6 @@ fn fill_region_tables<'tcx>( } } -/// LLVM requires all local file IDs to have at least one mapping region. -/// If that's not the case, skip this function, to avoid an assertion failure -/// (or worse) in LLVM. -fn check_local_file_table(covfun: &CovfunRecord<'_>) -> bool { - let mut local_file_id_seen = - IndexVec::::from_elem_n(false, covfun.virtual_file_mapping.local_file_table.len()); - for cov_span in covfun.regions.all_cov_spans() { - local_file_id_seen[cov_span.file_id] = true; - } - - local_file_id_seen.into_iter().all(|seen| seen) -} - /// Generates the contents of the covfun record for this function, which /// contains the function's coverage mapping data. The record is then stored /// as a global variable in the `__llvm_covfun` section. @@ -205,10 +185,6 @@ pub(crate) fn generate_covfun_record<'tcx>( global_file_table: &GlobalFileTable, covfun: &CovfunRecord<'tcx>, ) { - if !check_local_file_table(covfun) { - return; - } - let &CovfunRecord { mangled_function_name, source_hash, diff --git a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs index 574463be7ffe..39a59560c9d3 100644 --- a/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs +++ b/compiler/rustc_codegen_llvm/src/coverageinfo/mapgen/spans.rs @@ -39,10 +39,7 @@ impl Coords { /// or other expansions), and if it does happen then skipping a span or function is /// better than an ICE or `llvm-cov` failure that the user might have no way to avoid. pub(crate) fn make_coords(source_map: &SourceMap, file: &SourceFile, span: Span) -> Option { - if span.is_empty() { - debug_assert!(false, "can't make coords from empty span: {span:?}"); - return None; - } + let span = ensure_non_empty_span(source_map, span)?; let lo = span.lo(); let hi = span.hi(); @@ -73,6 +70,29 @@ pub(crate) fn make_coords(source_map: &SourceMap, file: &SourceFile, span: Span) }) } +fn ensure_non_empty_span(source_map: &SourceMap, span: Span) -> Option { + if !span.is_empty() { + return Some(span); + } + + // The span is empty, so try to enlarge it to cover an adjacent '{' or '}'. + source_map + .span_to_source(span, |src, start, end| try { + // Adjusting span endpoints by `BytePos(1)` is normally a bug, + // but in this case we have specifically checked that the character + // we're skipping over is one of two specific ASCII characters, so + // adjusting by exactly 1 byte is correct. + if src.as_bytes().get(end).copied() == Some(b'{') { + Some(span.with_hi(span.hi() + BytePos(1))) + } else if start > 0 && src.as_bytes()[start - 1] == b'}' { + Some(span.with_lo(span.lo() - BytePos(1))) + } else { + None + } + }) + .ok()? +} + /// If `llvm-cov` sees a source region that is improperly ordered (end < start), /// it will immediately exit with a fatal error. To prevent that from happening, /// discard regions that are improperly ordered, or might be interpreted in a diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index 20e081d33600..068d96c860f5 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -776,8 +776,7 @@ fn test_unstable_options_tracking_hash() { CoverageOptions { level: CoverageLevel::Mcdc, no_mir_spans: true, - discard_all_spans_in_codegen: true, - inject_unused_local_file: true, + discard_all_spans_in_codegen: true } ); tracked!(crate_attr, vec!["abc".to_string()]); diff --git a/compiler/rustc_mir_transform/src/coverage/spans.rs b/compiler/rustc_mir_transform/src/coverage/spans.rs index ddeae093df5b..ec76076020eb 100644 --- a/compiler/rustc_mir_transform/src/coverage/spans.rs +++ b/compiler/rustc_mir_transform/src/coverage/spans.rs @@ -1,8 +1,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_middle::mir; use rustc_middle::ty::TyCtxt; -use rustc_span::source_map::SourceMap; -use rustc_span::{BytePos, DesugaringKind, ExpnKind, MacroKind, Span}; +use rustc_span::{DesugaringKind, ExpnKind, MacroKind, Span}; use tracing::instrument; use crate::coverage::graph::{BasicCoverageBlock, CoverageGraph}; @@ -84,18 +83,8 @@ pub(super) fn extract_refined_covspans<'tcx>( // Discard any span that overlaps with a hole. discard_spans_overlapping_holes(&mut covspans, &holes); - // Discard spans that overlap in unwanted ways. + // Perform more refinement steps after holes have been dealt with. let mut covspans = remove_unwanted_overlapping_spans(covspans); - - // For all empty spans, either enlarge them to be non-empty, or discard them. - let source_map = tcx.sess.source_map(); - covspans.retain_mut(|covspan| { - let Some(span) = ensure_non_empty_span(source_map, covspan.span) else { return false }; - covspan.span = span; - true - }); - - // Merge covspans that can be merged. covspans.dedup_by(|b, a| a.merge_if_eligible(b)); code_mappings.extend(covspans.into_iter().map(|Covspan { span, bcb }| { @@ -241,26 +230,3 @@ fn compare_spans(a: Span, b: Span) -> std::cmp::Ordering { // - Both have the same start and span A extends further right .then_with(|| Ord::cmp(&a.hi(), &b.hi()).reverse()) } - -fn ensure_non_empty_span(source_map: &SourceMap, span: Span) -> Option { - if !span.is_empty() { - return Some(span); - } - - // The span is empty, so try to enlarge it to cover an adjacent '{' or '}'. - source_map - .span_to_source(span, |src, start, end| try { - // Adjusting span endpoints by `BytePos(1)` is normally a bug, - // but in this case we have specifically checked that the character - // we're skipping over is one of two specific ASCII characters, so - // adjusting by exactly 1 byte is correct. - if src.as_bytes().get(end).copied() == Some(b'{') { - Some(span.with_hi(span.hi() + BytePos(1))) - } else if start > 0 && src.as_bytes()[start - 1] == b'}' { - Some(span.with_lo(span.lo() - BytePos(1))) - } else { - None - } - }) - .ok()? -} diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 144aeb5c369c..60e1b465ba96 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -195,11 +195,6 @@ pub struct CoverageOptions { /// regression tests for #133606, because we don't have an easy way to /// reproduce it from actual source code. pub discard_all_spans_in_codegen: bool, - - /// `-Zcoverage-options=inject-unused-local-file`: During codegen, add an - /// extra dummy entry to each function's local file table, to exercise the - /// code that checks for local file IDs with no mapping regions. - pub inject_unused_local_file: bool, } /// Controls whether branch coverage or MC/DC coverage is enabled. diff --git a/compiler/rustc_session/src/options.rs b/compiler/rustc_session/src/options.rs index 3d9fdcbc7b14..5b4068740a15 100644 --- a/compiler/rustc_session/src/options.rs +++ b/compiler/rustc_session/src/options.rs @@ -1413,7 +1413,6 @@ pub mod parse { "mcdc" => slot.level = CoverageLevel::Mcdc, "no-mir-spans" => slot.no_mir_spans = true, "discard-all-spans-in-codegen" => slot.discard_all_spans_in_codegen = true, - "inject-unused-local-file" => slot.inject_unused_local_file = true, _ => return false, } } diff --git a/compiler/rustc_session/src/session.rs b/compiler/rustc_session/src/session.rs index 34ac37d63787..010ae42c2802 100644 --- a/compiler/rustc_session/src/session.rs +++ b/compiler/rustc_session/src/session.rs @@ -371,11 +371,6 @@ impl Session { self.opts.unstable_opts.coverage_options.discard_all_spans_in_codegen } - /// True if testing flag `-Zcoverage-options=inject-unused-local-file` was passed. - pub fn coverage_inject_unused_local_file(&self) -> bool { - self.opts.unstable_opts.coverage_options.inject_unused_local_file - } - pub fn is_sanitizer_cfi_enabled(&self) -> bool { self.opts.unstable_opts.sanitizer.contains(SanitizerSet::CFI) } diff --git a/tests/coverage/async_closure.cov-map b/tests/coverage/async_closure.cov-map index 53128dd7a48b..9f8dc8d6cbba 100644 --- a/tests/coverage/async_closure.cov-map +++ b/tests/coverage/async_closure.cov-map @@ -37,29 +37,32 @@ Number of file 0 mappings: 8 Highest counter ID seen: c0 Function name: async_closure::main::{closure#0} -Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24] +Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24] Number of files: 1 - file 0 => $DIR/async_closure.rs Number of expressions: 0 -Number of file 0 mappings: 1 -- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36) +Number of file 0 mappings: 2 +- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35) +- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36) Highest counter ID seen: c0 Function name: async_closure::main::{closure#0} -Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24] +Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24] Number of files: 1 - file 0 => $DIR/async_closure.rs Number of expressions: 0 -Number of file 0 mappings: 1 -- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36) +Number of file 0 mappings: 2 +- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35) +- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36) Highest counter ID seen: c0 Function name: async_closure::main::{closure#0}::{closure#0}:: -Raw bytes (9): 0x[01, 01, 00, 01, 01, 0b, 22, 00, 24] +Raw bytes (14): 0x[01, 01, 00, 02, 01, 0b, 22, 00, 23, 01, 00, 23, 00, 24] Number of files: 1 - file 0 => $DIR/async_closure.rs Number of expressions: 0 -Number of file 0 mappings: 1 -- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 36) +Number of file 0 mappings: 2 +- Code(Counter(0)) at (prev + 11, 34) to (start + 0, 35) +- Code(Counter(0)) at (prev + 0, 35) to (start + 0, 36) Highest counter ID seen: c0 diff --git a/tests/coverage/unused-local-file.coverage b/tests/coverage/unused-local-file.coverage deleted file mode 100644 index 8f5a32f6d708..000000000000 --- a/tests/coverage/unused-local-file.coverage +++ /dev/null @@ -1,7 +0,0 @@ - LL| |//@ edition: 2021 - LL| | - LL| |// Force this function to be generated in its home crate, so that it ends up - LL| |// with normal coverage metadata. - LL| |#[inline(never)] - LL| 1|pub fn external_function() {} - diff --git a/tests/coverage/unused-local-file.rs b/tests/coverage/unused-local-file.rs deleted file mode 100644 index cf43c62d7030..000000000000 --- a/tests/coverage/unused-local-file.rs +++ /dev/null @@ -1,22 +0,0 @@ -//! If we give LLVM a local file table for a function, but some of the entries -//! in that table have no associated mapping regions, then an assertion failure -//! will occur in LLVM. We therefore need to detect and skip any function that -//! would trigger that assertion. -//! -//! To test that this case is handled, even before adding code that could allow -//! it to happen organically (for expansion region support), we use a special -//! testing-only flag to force it to occur. - -//@ edition: 2024 -//@ compile-flags: -Zcoverage-options=inject-unused-local-file - -// The `llvm-cov` tool will complain if the test binary ends up having no -// coverage metadata at all. To prevent that, we also link to instrumented -// code in an auxiliary crate that doesn't have the special flag set. - -//@ aux-build: discard_all_helper.rs -extern crate discard_all_helper; - -fn main() { - discard_all_helper::external_function(); -} diff --git a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff index fa88211383a0..d465b8bded22 100644 --- a/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/branch_match_arms.main.InstrumentCoverage.diff @@ -40,7 +40,7 @@ + coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:17: 19:18 (#0); + coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:23: 19:30 (#0); + coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:31: 19:32 (#0); -+ coverage Code { bcb: bcb2 } => $DIR/branch_match_arms.rs:21:1: 21:2 (#0); ++ coverage Code { bcb: bcb2 } => $DIR/branch_match_arms.rs:21:2: 21:2 (#0); + bb0: { + Coverage::VirtualCounter(bcb0); diff --git a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff index 9b6d2b22087b..cf6d85abd80e 100644 --- a/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage.bar.InstrumentCoverage.diff @@ -6,7 +6,7 @@ + coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:27:1: 27:17 (#0); + coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:28:5: 28:9 (#0); -+ coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:29:1: 29:2 (#0); ++ coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:29:2: 29:2 (#0); + bb0: { + Coverage::VirtualCounter(bcb0); diff --git a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff index b2bb2375aee6..980c5e202ffd 100644 --- a/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage.main.InstrumentCoverage.diff @@ -10,8 +10,8 @@ + coverage Code { bcb: bcb0 } => $DIR/instrument_coverage.rs:13:1: 13:10 (#0); + coverage Code { bcb: bcb1 } => $DIR/instrument_coverage.rs:15:12: 15:15 (#0); + coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:16:13: 16:18 (#0); -+ coverage Code { bcb: bcb3 } => $DIR/instrument_coverage.rs:17:9: 17:10 (#0); -+ coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:19:1: 19:2 (#0); ++ coverage Code { bcb: bcb3 } => $DIR/instrument_coverage.rs:17:10: 17:10 (#0); ++ coverage Code { bcb: bcb2 } => $DIR/instrument_coverage.rs:19:2: 19:2 (#0); + bb0: { + Coverage::VirtualCounter(bcb0); diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff index 2eb78c08ee80..b707cd41788a 100644 --- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff +++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.CleanupPostBorrowck.diff @@ -10,8 +10,8 @@ coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:13:1: 13:10 (#0); coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); coverage Code { bcb: bcb3 } => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0); - coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:38: 14:39 (#0); - coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:1: 15:2 (#0); + coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0); + coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0); coverage Branch { true_bcb: bcb3, false_bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); bb0: { diff --git a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff index 0c1bc24b6dc1..239b845c2311 100644 --- a/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff +++ b/tests/mir-opt/coverage/instrument_coverage_cleanup.main.InstrumentCoverage.diff @@ -10,8 +10,8 @@ + coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:13:1: 13:10 (#0); + coverage Code { bcb: bcb0 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); + coverage Code { bcb: bcb3 } => $DIR/instrument_coverage_cleanup.rs:14:37: 14:39 (#0); -+ coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:38: 14:39 (#0); -+ coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:1: 15:2 (#0); ++ coverage Code { bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:39: 14:39 (#0); ++ coverage Code { bcb: bcb2 } => $DIR/instrument_coverage_cleanup.rs:15:2: 15:2 (#0); + coverage Branch { true_bcb: bcb3, false_bcb: bcb1 } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0); + bb0: { From a963e6fc386cb91d33ff4ca020ceaf7bf590ee27 Mon Sep 17 00:00:00 2001 From: Augie Fackler Date: Tue, 27 May 2025 10:52:09 -0400 Subject: [PATCH 44/46] tests: mark option-niche-eq as fixed on LLVM 21 Some combination of recent Rust changes (between 3d86494a0d01 and aa57e46e24a4 from what I can tell) and changes in LLVM 21 (not recently, as best I can tell) have caused this test to start showing the behavior we want, so it's time to move this test to a proper place and mark it as fixed on LLVM 21. --- tests/codegen/option-niche-eq.rs | 11 +++++++++++ .../option-niche-unfixed/option-bool-eq.rs | 15 --------------- 2 files changed, 11 insertions(+), 15 deletions(-) delete mode 100644 tests/codegen/option-niche-unfixed/option-bool-eq.rs diff --git a/tests/codegen/option-niche-eq.rs b/tests/codegen/option-niche-eq.rs index a39e2870a0f4..3900cb79aa2a 100644 --- a/tests/codegen/option-niche-eq.rs +++ b/tests/codegen/option-niche-eq.rs @@ -1,5 +1,7 @@ +//@ revisions: REGULAR LLVM21 //@ min-llvm-version: 20 //@ compile-flags: -Copt-level=3 -Zmerge-functions=disabled +//@ [LLVM21] min-llvm-version: 21 #![crate_type = "lib"] extern crate core; @@ -74,3 +76,12 @@ pub fn niche_eq(l: Option, r: Option) -> bool { // CHECK-NEXT: ret i1 l == r } + +// LLVM21-LABEL: @bool_eq +#[no_mangle] +pub fn bool_eq(l: Option, r: Option) -> bool { + // LLVM21: start: + // LLVM21-NEXT: icmp eq i8 + // LLVM21-NEXT: ret i1 + l == r +} diff --git a/tests/codegen/option-niche-unfixed/option-bool-eq.rs b/tests/codegen/option-niche-unfixed/option-bool-eq.rs deleted file mode 100644 index fa0e7836afb9..000000000000 --- a/tests/codegen/option-niche-unfixed/option-bool-eq.rs +++ /dev/null @@ -1,15 +0,0 @@ -//@ should-fail -//@ compile-flags: -Copt-level=3 -Zmerge-functions=disabled -//! FIXME(#49892) -//! Tests that LLVM does not fully optimize comparisons of `Option`. -//! If this starts passing, it can be moved to `tests/codegen/option-niche-eq.rs` -#![crate_type = "lib"] - -// CHECK-LABEL: @bool_eq -#[no_mangle] -pub fn bool_eq(l: Option, r: Option) -> bool { - // CHECK: start: - // CHECK-NEXT: icmp eq i8 - // CHECK-NEXT: ret i1 - l == r -} From eed065958bec9402f4f12810a6ddebddb86b8433 Mon Sep 17 00:00:00 2001 From: tk <49250442+tkr-sh@users.noreply.github.com> Date: Tue, 27 May 2025 19:47:14 +0200 Subject: [PATCH 45/46] =?UTF-8?q?=E2=9C=A8=20feat:=20map=5For=5Fdefault=20?= =?UTF-8?q?for=20result=20and=20option?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- library/core/src/option.rs | 30 ++++++++++++++++++++++++++++++ library/core/src/result.rs | 30 ++++++++++++++++++++++++++++++ 2 files changed, 60 insertions(+) diff --git a/library/core/src/option.rs b/library/core/src/option.rs index 1d264b260767..675556b07a83 100644 --- a/library/core/src/option.rs +++ b/library/core/src/option.rs @@ -1253,6 +1253,36 @@ impl Option { } } + /// Maps an `Option` to a `U` by applying function `f` to the contained + /// value if the option is [`Some`], otherwise if [`None`], returns the + /// [default value] for the type `U`. + /// + /// # Examples + /// + /// ``` + /// #![feature(result_option_map_or_default)] + /// + /// let x: Option<&str> = Some("hi"); + /// let y: Option<&str> = None; + /// + /// assert_eq!(x.map_or_default(|x| x.len()), 2); + /// assert_eq!(y.map_or_default(|y| y.len()), 0); + /// ``` + /// + /// [default value]: Default::default + #[inline] + #[unstable(feature = "result_option_map_or_default", issue = "138099")] + pub fn map_or_default(self, f: F) -> U + where + U: Default, + F: FnOnce(T) -> U, + { + match self { + Some(t) => f(t), + None => U::default(), + } + } + /// Transforms the `Option` into a [`Result`], mapping [`Some(v)`] to /// [`Ok(v)`] and [`None`] to [`Err(err)`]. /// diff --git a/library/core/src/result.rs b/library/core/src/result.rs index 736ffb7d0caf..ef2da5e8fbf4 100644 --- a/library/core/src/result.rs +++ b/library/core/src/result.rs @@ -858,6 +858,36 @@ impl Result { } } + /// Maps a `Result` to a `U` by applying function `f` to the contained + /// value if the result is [`Ok`], otherwise if [`Err`], returns the + /// [default value] for the type `U`. + /// + /// # Examples + /// + /// ``` + /// #![feature(result_option_map_or_default)] + /// + /// let x: Result<_, &str> = Ok("foo"); + /// let y: Result<&str, _> = Err("bar"); + /// + /// assert_eq!(x.map_or_default(|x| x.len()), 3); + /// assert_eq!(y.map_or_default(|y| y.len()), 0); + /// ``` + /// + /// [default value]: Default::default + #[inline] + #[unstable(feature = "result_option_map_or_default", issue = "138099")] + pub fn map_or_default(self, f: F) -> U + where + U: Default, + F: FnOnce(T) -> U, + { + match self { + Ok(t) => f(t), + Err(_) => U::default(), + } + } + /// Maps a `Result` to `Result` by applying a function to a /// contained [`Err`] value, leaving an [`Ok`] value untouched. /// From cd4f199db24c5f2f65c752555a39256f3955f68b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Jakub=20Ber=C3=A1nek?= Date: Wed, 28 May 2025 09:29:12 +0200 Subject: [PATCH 46/46] Revert "increase perf of charsearcher for single ascii characters" This reverts commit 245bf503e2a948ac98170516d11df632e85a948b. --- library/core/src/str/iter.rs | 2 +- library/core/src/str/pattern.rs | 32 +------------------------------- 2 files changed, 2 insertions(+), 32 deletions(-) diff --git a/library/core/src/str/iter.rs b/library/core/src/str/iter.rs index 49c581f352eb..425c4eaee28e 100644 --- a/library/core/src/str/iter.rs +++ b/library/core/src/str/iter.rs @@ -656,7 +656,7 @@ impl<'a, P: Pattern> SplitInternal<'a, P> { None } - #[inline(always)] + #[inline] fn next(&mut self) -> Option<&'a str> { if self.finished { return None; diff --git a/library/core/src/str/pattern.rs b/library/core/src/str/pattern.rs index e8189a2187b6..bcbbb11c83b2 100644 --- a/library/core/src/str/pattern.rs +++ b/library/core/src/str/pattern.rs @@ -429,23 +429,8 @@ unsafe impl<'a> Searcher<'a> for CharSearcher<'a> { SearchStep::Done } } - #[inline(always)] + #[inline] fn next_match(&mut self) -> Option<(usize, usize)> { - if self.utf8_size == 1 { - return match self - .haystack - .as_bytes() - .get(self.finger..self.finger_back)? - .iter() - .position(|x| *x == self.utf8_encoded[0]) - { - Some(x) => { - self.finger += x + 1; - Some((self.finger - 1, self.finger)) - } - None => None, - }; - } loop { // get the haystack after the last character found let bytes = self.haystack.as_bytes().get(self.finger..self.finger_back)?; @@ -513,21 +498,6 @@ unsafe impl<'a> ReverseSearcher<'a> for CharSearcher<'a> { } #[inline] fn next_match_back(&mut self) -> Option<(usize, usize)> { - if self.utf8_size == 1 { - return match self - .haystack - .get(self.finger..self.finger_back)? - .as_bytes() - .iter() - .rposition(|&x| x == self.utf8_encoded[0]) - { - Some(x) => { - self.finger_back = self.finger + x; - Some((self.finger_back, self.finger_back + 1)) - } - None => None, - }; - } let haystack = self.haystack.as_bytes(); loop { // get the haystack up to but not including the last character searched