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Add feature diagnostic for unsafe_extern_blocks

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This commit is contained in:
Santiago Pastorino 2024-06-28 23:13:33 -03:00
parent 99f77a2eda
commit a62cbda57e
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GPG key ID: 8131A24E0C79EFAF
4 changed files with 21 additions and 1 deletions
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10
compiler/rustc_ast_passes/src/ast_validation.rs
View file

@ -1088,7 +1088,15 @@ fn visit_item(&mut self, item: &'a Item) {
}
}
} else if let &Safety::Unsafe(span) = safety {
this.dcx().emit_err(errors::UnsafeItem { span, kind: "extern block" });
let mut diag = this
.dcx()
.create_err(errors::UnsafeItem { span, kind: "extern block" });
rustc_session::parse::add_feature_diagnostics(
&mut diag,
self.session,
sym::unsafe_extern_blocks,
);
diag.emit();
}
if abi.is_none() {

4
tests/ui/feature-gates/feature-gate-unsafe-extern-blocks.stderr
View file

@ -3,6 +3,10 @@ error: extern block cannot be declared unsafe
|
LL | unsafe extern "C" {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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]: `unsafe extern {}` blocks and `safe` keyword are experimental
--> $DIR/feature-gate-unsafe-extern-blocks.rs:9:5

4
tests/ui/parser/unsafe-foreign-mod-2.stderr
View file

@ -9,6 +9,10 @@ error: extern block cannot be declared unsafe
|
LL | extern "C" unsafe {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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: items in unadorned `extern` blocks cannot have safety qualifiers
--> $DIR/unsafe-foreign-mod-2.rs:4:5

4
tests/ui/parser/unsafe-foreign-mod.stderr
View file

@ -3,6 +3,10 @@ error: extern block cannot be declared unsafe
|
LL | unsafe extern "C" {
| ^^^^^^
|
= note: see issue #123743 <https://github.com/rust-lang/rust/issues/123743> for more information
= help: add `#![feature(unsafe_extern_blocks)]` 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= note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date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 1 previous error