bjoernager/rust
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fix validation for rustc_allow_const_fn_unstable targets

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The validation was introduced in 3a63bf0299
without strict validation of functions, e. g. all function types were
allowed.
Now the validation only allows `const fn`s.
This commit is contained in:
Florian Warzecha 2020-10-23 17:54:48 +02:00
parent 13b481b247
commit ac2c599f23
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GPG key ID: 4BE8C7D97F910C60
1 changed files with 5 additions and 3 deletions
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8
compiler/rustc_passes/src/check_attr.rs
View file

@ -88,7 +88,7 @@ impl CheckAttrVisitor<'tcx> {
} else if self.tcx.sess.check_name(attr, sym::allow_internal_unstable) {
self.check_allow_internal_unstable(&attr, span, target, &attrs)
} else if self.tcx.sess.check_name(attr, sym::rustc_allow_const_fn_unstable) {
self.check_rustc_allow_const_fn_unstable(&attr, span, target)
self.check_rustc_allow_const_fn_unstable(hir_id, &attr, span, target)
} else {
// lint-only checks
if self.tcx.sess.check_name(attr, sym::cold) {
@ -798,13 +798,15 @@ impl CheckAttrVisitor<'tcx> {
/// (Allows proc_macro functions)
fn check_rustc_allow_const_fn_unstable(
&self,
hir_id: HirId,
attr: &Attribute,
span: &Span,
target: Target,
) -> bool {
if let Target::Fn | Target::Method(_) = target {
// FIXME Check that this isn't just a function, but a const fn
return true;
if self.tcx.is_const_fn_raw(self.tcx.hir().local_def_id(hir_id)) {
return true;
}
}
self.tcx
.sess