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Stabilize feature(macro_attributes_in_derive_output)

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This commit is contained in:
Vadim Petrochenkov 2021-07-17 17:50:33 +03:00
parent 92804cd490
commit 85f02901a3
7 changed files with 40 additions and 142 deletions
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32
compiler/rustc_resolve/src/macros.rs
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@ -311,38 +311,6 @@ impl<'a> ResolverExpand for Resolver<'a> {
self.create_stable_hashing_context(),
);
if let Res::Def(_, _) = res {
// Gate macro attributes in `#[derive]` output.
if !self.session.features_untracked().macro_attributes_in_derive_output
&& kind == MacroKind::Attr
&& ext.builtin_name != Some(sym::derive)
{
let mut expn_id = parent_scope.expansion;
loop {
// Helper attr table is a quick way to determine whether the attr is `derive`.
if self.helper_attrs.contains_key(&expn_id) {
feature_err(
&self.session.parse_sess,
sym::macro_attributes_in_derive_output,
path.span,
"macro attributes in `#[derive]` output are unstable",
)
.emit();
break;
} else {
let expn_data = expn_id.expn_data();
match expn_data.kind {
ExpnKind::Root
| ExpnKind::Macro(MacroKind::Bang | MacroKind::Derive, _) => {
break;
}
_ => expn_id = expn_data.parent.expect_local(),
}
}
}
}
}
Ok(ext)
}