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Introduce the #[diagnostic] attribute namespace

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Co-authored-by: est31 <est31@users.noreply.github.com>

Co-authored-by: Esteban Kuber <estebank@users.noreply.github.com>

Co-authored-by: Vadim Petrochenkov <vadim.petrochenkov@gmail.com>
This commit is contained in:
Georg Semmler 2023-04-28 13:04:35 +02:00
parent d150dbb067
commit 5b576665e5
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15 changed files with 202 additions and 4 deletions
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13
compiler/rustc_ast_passes/src/feature_gate.rs
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@ -218,6 +218,19 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
}
}
}
if !attr.is_doc_comment()
&& attr.get_normal_item().path.segments.len() == 2
&& attr.get_normal_item().path.segments[0].ident.name == sym::diagnostic
&& !self.features.diagnostic_namespace
{
let msg = "`#[diagnostic]` attribute name space is experimental";
gate_feature_post!(
self,
diagnostic_namespace,
attr.get_normal_item().path.segments[0].ident.span,
msg
);
}
// Emit errors for non-staged-api crates.
if !self.features.staged_api {