diff options
Diffstat (limited to 'compiler/rustc_middle/src/ty/util.rs')
| -rw-r--r-- | compiler/rustc_middle/src/ty/util.rs | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/compiler/rustc_middle/src/ty/util.rs b/compiler/rustc_middle/src/ty/util.rs index 3a876df84c2..0e581d7f1f7 100644 --- a/compiler/rustc_middle/src/ty/util.rs +++ b/compiler/rustc_middle/src/ty/util.rs @@ -142,16 +142,16 @@ impl<'tcx> TyCtxt<'tcx> { /// Creates a hash of the type `Ty` which will be the same no matter what crate /// context it's calculated within. This is used by the `type_id` intrinsic. pub fn type_id_hash(self, ty: Ty<'tcx>) -> u64 { - let mut hasher = StableHasher::new(); - let mut hcx = self.create_stable_hashing_context(); - // We want the type_id be independent of the types free regions, so we // erase them. The erase_regions() call will also anonymize bound // regions, which is desirable too. let ty = self.erase_regions(ty); - hcx.while_hashing_spans(false, |hcx| ty.hash_stable(hcx, &mut hasher)); - hasher.finish() + self.with_stable_hashing_context(|mut hcx| { + let mut hasher = StableHasher::new(); + hcx.while_hashing_spans(false, |hcx| ty.hash_stable(hcx, &mut hasher)); + hasher.finish() + }) } pub fn res_generics_def_id(self, res: Res) -> Option<DefId> { |