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Gate stability attrs with other attributes.

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This commit is contained in:
Camille GILLOT 2022-01-18 20:37:14 +01:00
parent 969f8735dc
commit 3c7947ee43
14 changed files with 242 additions and 196 deletions
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25
compiler/rustc_ast_passes/src/feature_gate.rs
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@ -420,6 +420,31 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
}
}
}
// Emit errors for non-staged-api crates.
if !self.features.staged_api {
if attr.has_name(sym::rustc_deprecated)
|| attr.has_name(sym::unstable)
|| attr.has_name(sym::stable)
|| attr.has_name(sym::rustc_const_unstable)
|| attr.has_name(sym::rustc_const_stable)
{
struct_span_err!(
self.sess,
attr.span,
E0734,
"stability attributes may not be used outside of the standard library",
)
.emit();
}
} else {
if attr.has_name(sym::deprecated) {
self.sess
.struct_span_err(attr.span, "`#[deprecated]` cannot be used in staged API")
.span_label(attr.span, "use `#[rustc_deprecated]` instead")
.emit();
}
}
}
fn visit_item(&mut self, i: &'a ast::Item) {