bjoernager/rust
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stop hashing compile-time constant

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Ralf Jung 2024-10-23 19:44:17 +02:00
parent be01dabfef
commit 03048096f6
1 changed files with 1 additions and 6 deletions
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7
compiler/rustc_query_system/src/ich/impls_syntax.rs
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@ -111,13 +111,8 @@ impl<'a> HashStable<StableHashingContext<'a>> for SourceFile {
impl<'tcx> HashStable<StableHashingContext<'tcx>> for rustc_feature::Features { impl<'tcx> HashStable<StableHashingContext<'tcx>> for rustc_feature::Features {
fn hash_stable(&self, hcx: &mut StableHashingContext<'tcx>, hasher: &mut StableHasher) { fn hash_stable(&self, hcx: &mut StableHashingContext<'tcx>, hasher: &mut StableHasher) {
// Unfortunately we cannot exhaustively list fields here, since the // Unfortunately we cannot exhaustively list fields here, since the
// struct is macro generated. // struct has private fields (to ensure its invariant is maintained)
self.enabled_lang_features().hash_stable(hcx, hasher); self.enabled_lang_features().hash_stable(hcx, hasher);
self.enabled_lib_features().hash_stable(hcx, hasher); self.enabled_lib_features().hash_stable(hcx, hasher);
// FIXME: why do we hash something that is a compile-time constant?
for feature in rustc_feature::UNSTABLE_LANG_FEATURES.iter() {
feature.name.hash_stable(hcx, hasher);
}
} }
} }