Note that the output of `unpretty-debug.stdout` has changed. In that
test the hash values are normalized from a symbol numbers to small
numbers like "0#0" and "0#1". The increase in the number of static
symbols must have caused the original numbers to contain more digits,
resulting in different pretty-printing prior to normalization.
lint: use `transparent_newtype_field` to avoid ICE
Fixes#73747.
This PR re-uses the `transparent_newtype_field` function instead of manually calling `is_zst` on normalized fields to determine which field in a transparent type is the non-zero-sized field, thus avoiding an ICE.
typeck: use `item_name` in cross-crate packed diag
Fixes#73112.
This PR replaces the use of `expect_local` and `hir().get` to fetch the identifier for a ADT with `item_name` - which works across crates.
This commit re-uses the `transparent_newtype_field` function instead of
manually calling `is_zst` on normalized fields to determine which field
in a transparent type is the non-zero-sized field, thus avoiding an ICE.
Signed-off-by: David Wood <david@davidtw.co>
When encountering a unit or tuple pattern for a struct-like item, suggest
using the correct pattern.
Use `insert_field_names_local` when evaluating variants and store field
names even when the list is empty in order to produce accurate
structured suggestions.
This commit replaces the use of `expect_local` and `hir().get` to fetch
the identifier for a ADT with `item_name` - which works across crates.
Signed-off-by: David Wood <david@davidtw.co>
typeck: report placeholder type error w/out span
Fixes#74086.
This PR fixes a regression introduced in rust-lang/rust#70369 which meant that an error was not being emitted for invalid placeholder types when there wasn't a span available.
r? @estebank
typeck: check for infer before type impls trait
Fixes#73886.
This PR checks that the target type of the cast (an error related to which is being reported) does not have types to be inferred before checking if it implements the `From` trait.
r? @estebank
Added detailed error code explanation for issue E0688 in Rust compiler.
Added proper error explanation for issue E0688 in the Rust compiler.
Error Code E0688
Sub Part of Issue #61137
r? @GuillaumeGomez
This commit fixes a regression introduced in rust-lang/rust#70369 which
meant that an error was not being emitted for invalid placeholder types
when there wasn't a span available.
Signed-off-by: David Wood <david@davidtw.co>
Stabilize `transmute` in constants and statics but not const fn
cc #53605 (leaving issue open so we can add `transmute` to `const fn` later)
Previous attempt: #64011
r? @RalfJung
cc @rust-lang/wg-const-eval
Only add CFGuard on `windows-msvc` targets
As @ollie27 pointed out in #73893, the `cfguard` module flag causes incorrect behavior on `windows-gnu` targets. This patch restricts rustc to only add this flag for `windows-msvc` targets (this may need to be changed if other linkers gain support for CFGuard).
adjust ub-enum test to be endianess-independent
@cuviper noted that our test fails on "other" endianess systems (I never know which is which^^), so let's fix that.
Stabilize casts and coercions to `&[T]` in const fn
Part of #64992
There was never a reason to not stabilize this, we just accidentally prevented them when we implemented the `min_const_fn` feature that gave us `const fn` on stable. This PR stabilizes these casts (which are already stable in `const` outside `const fn`), while keeping all other unsizing casts (so `T` -> `dyn Trait`) unstable within const fn.
These casts have no forward compatibility concerns with any future features for const eval and users were able to use them under the `const_fn` feature gate already since at least the miri merger, possibly longer.
r? @rust-lang/lang
Accept tuple.0.0 as tuple indexing (take 2)
If we expect something identifier-like when parsing a field name after `.`, but encounter a float token, we break that float token into parts, similarly to how we break `&&` into `&` `&`, or `<<` into `<` `<`, etc.
An alternative to https://github.com/rust-lang/rust/pull/70420.
