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const fn stability checking: also check declared language features

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This commit is contained in:
Ralf Jung 2024-08-27 17:07:02 +02:00
parent bf662eb808
commit c2984179d9
3 changed files with 22 additions and 7 deletions
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5
compiler/rustc_middle/src/ty/context.rs
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@ -3089,10 +3089,7 @@ impl<'tcx> TyCtxt<'tcx> {
Some(stability) if stability.is_const_unstable() => {
// has a `rustc_const_unstable` attribute, check whether the user enabled the
// corresponding feature gate.
self.features()
.declared_lib_features
.iter()
.any(|&(sym, _)| sym == stability.feature)
self.features().declared(stability.feature)
}
// functions without const stability are either stable user written
// const fn or the user is using feature gates and we thus don't