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Collect features from #[rustc_default_body_unstable]

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This commit is contained in:
Maybe Waffle 2022-04-27 19:00:17 +04:00
parent 177af47104
commit 9015a5110f
1 changed files with 14 additions and 5 deletions
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19
compiler/rustc_passes/src/lib_features.rs
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@ -29,11 +29,16 @@ impl<'tcx> LibFeatureCollector<'tcx> {
}
fn extract(&self, attr: &Attribute) -> Option<(Symbol, Option<Symbol>, Span)> {
let stab_attrs =
[sym::stable, sym::unstable, sym::rustc_const_stable, sym::rustc_const_unstable];
let stab_attrs = [
sym::stable,
sym::unstable,
sym::rustc_const_stable,
sym::rustc_const_unstable,
sym::rustc_default_body_unstable,
];
// Find a stability attribute: one of #[stable(…)], #[unstable(…)],
// #[rustc_const_stable(…)], or #[rustc_const_unstable(…)].
// #[rustc_const_stable(…)], #[rustc_const_unstable(…)] or #[rustc_default_body_unstable].
if let Some(stab_attr) = stab_attrs.iter().find(|stab_attr| attr.has_name(**stab_attr)) {
let meta_kind = attr.meta_kind();
if let Some(MetaItemKind::List(ref metas)) = meta_kind {
@ -53,8 +58,12 @@ impl<'tcx> LibFeatureCollector<'tcx> {
// This additional check for stability is to make sure we
// don't emit additional, irrelevant errors for malformed
// attributes.
let is_unstable =
matches!(*stab_attr, sym::unstable | sym::rustc_const_unstable);
let is_unstable = matches!(
*stab_attr,
sym::unstable
| sym::rustc_const_unstable
| sym::rustc_default_body_unstable
);
if since.is_some() || is_unstable {
return Some((feature, since, attr.span));
}