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Rollup merge of #128727 - RalfJung:conflicting-repr-future-incompat, r=lcnr 

bump conflicting_repr_hints lint to be shown in dependencies

This has been a future compatibility lint for years, let's bump it up to be shown in dependencies (so that hopefully we can then make it a hard error fairly soon).

Cc https://github.com/rust-lang/rust/issues/68585
This commit is contained in:
Matthias Krüger 2024-08-21 21:58:27 +02:00 committed by GitHub
parent 6b678c57b6 ac23a2e5cd
commit 5a93c74a02
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4 changed files with 62 additions and 1 deletions
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2
compiler/rustc_lint_defs/src/builtin.rs
View File

@ -251,7 +251,7 @@ declare_lint! {
Deny,
"conflicts between `#[repr(..)]` hints that were previously accepted and used in practice",
@future_incompatible = FutureIncompatibleInfo {
reason: FutureIncompatibilityReason::FutureReleaseErrorDontReportInDeps,
reason: FutureIncompatibilityReason::FutureReleaseErrorReportInDeps,
reference: "issue #68585 <https://github.com/rust-lang/rust/issues/68585>",
};
}

14
tests/ui/feature-gates/feature-gate-repr-simd.stderr
View File

@ -35,3 +35,17 @@ error: aborting due to 3 previous errors
Some errors have detailed explanations: E0566, E0658.
For more information about an error, try `rustc --explain E0566`.
Future incompatibility report: Future breakage diagnostic:
error[E0566]: conflicting representation hints
--> $DIR/feature-gate-repr-simd.rs:4:8
|
LL | #[repr(C)]
| ^
LL |
LL | #[repr(simd)]
| ^^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>
= note: `#[deny(conflicting_repr_hints)]` on by default

25
tests/ui/issues/issue-47094.stderr
View File

@ -23,3 +23,28 @@ LL | #[repr(u8)]
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0566`.
Future incompatibility report: Future breakage diagnostic:
error[E0566]: conflicting representation hints
--> $DIR/issue-47094.rs:1:8
|
LL | #[repr(C, u8)]
| ^ ^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>
= note: `#[deny(conflicting_repr_hints)]` on by default
Future breakage diagnostic:
error[E0566]: conflicting representation hints
--> $DIR/issue-47094.rs:8:8
|
LL | #[repr(C)]
| ^
LL |
LL | #[repr(u8)]
| ^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>
= note: `#[deny(conflicting_repr_hints)]` on by default

22
tests/ui/repr/conflicting-repr-hints.stderr
View File

@ -81,3 +81,25 @@ error: aborting due to 12 previous errors
Some errors have detailed explanations: E0566, E0587, E0634.
For more information about an error, try `rustc --explain E0566`.
Future incompatibility report: Future breakage diagnostic:
error[E0566]: conflicting representation hints
--> $DIR/conflicting-repr-hints.rs:13:8
|
LL | #[repr(C, u64)]
| ^ ^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>
= note: `#[deny(conflicting_repr_hints)]` on by default
Future breakage diagnostic:
error[E0566]: conflicting representation hints
--> $DIR/conflicting-repr-hints.rs:19:8
|
LL | #[repr(u32, u64)]
| ^^^ ^^^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>
= note: `#[deny(conflicting_repr_hints)]` on by default