diff options
Diffstat (limited to 'compiler')
| -rw-r--r-- | compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs index 80daaa60324..d2b7ede6523 100644 --- a/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs +++ b/compiler/rustc_hir_analysis/src/check/compare_impl_item/refine.rs @@ -7,7 +7,8 @@ use rustc_lint_defs::builtin::{REFINING_IMPL_TRAIT_INTERNAL, REFINING_IMPL_TRAIT use rustc_middle::span_bug; use rustc_middle::traits::{ObligationCause, Reveal}; use rustc_middle::ty::{ - self, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperVisitable, TypeVisitable, TypeVisitor, + self, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperVisitable, TypeVisitable, + TypeVisitableExt, TypeVisitor, }; use rustc_span::Span; use rustc_trait_selection::regions::InferCtxtRegionExt; @@ -177,6 +178,10 @@ pub(super) fn check_refining_return_position_impl_trait_in_trait<'tcx>( return; }; + if trait_bounds.references_error() || impl_bounds.references_error() { + return; + } + // For quicker lookup, use an `IndexSet` (we don't use one earlier because // it's not foldable..). // Also, We have to anonymize binders in these types because they may contain |