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This commit is contained in:
ljedrz 2020-02-05 11:29:07 +01:00
parent 28b0ed020a
commit e8b72f44b0
2 changed files with 7 additions and 7 deletions
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7
src/librustc/ich/impls_hir.rs
View File

@ -40,13 +40,6 @@ impl<'ctx> rustc_hir::HashStableContext for StableHashingContext<'ctx> {
}
}
// The following implementations of HashStable for `ItemId`, `TraitItemId`, and
// `ImplItemId` deserve special attention. Normally we do not hash `NodeId`s within
// the HIR, since they just signify a HIR nodes own path. But `ItemId` et al
// are used when another item in the HIR is *referenced* and we certainly
// want to pick up on a reference changing its target, so we hash the NodeIds
// in "DefPath Mode".
fn hash_reference_to_item(&mut self, id: hir::HirId, hasher: &mut StableHasher) {
let hcx = self;

7
src/librustc_hir/stable_hash_impls.rs
View File

@ -36,6 +36,13 @@ impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for BodyId {
}
}
// The following implementations of HashStable for `ItemId`, `TraitItemId`, and
// `ImplItemId` deserve special attention. Normally we do not hash `NodeId`s within
// the HIR, since they just signify a HIR nodes own path. But `ItemId` et al
// are used when another item in the HIR is *referenced* and we certainly
// want to pick up on a reference changing its target, so we hash the NodeIds
// in "DefPath Mode".
impl<HirCtx: crate::HashStableContext> HashStable<HirCtx> for ItemId {
fn hash_stable(&self, hcx: &mut HirCtx, hasher: &mut StableHasher) {
hcx.hash_reference_to_item(self.id, hasher)