Guard AliasTy creation against passing the wrong number of substs

2022-12-13 10:25:21 +00:00
parent 7bdda8f801
commit fef872a875
9 changed files with 35 additions and 38 deletions
--- a/compiler/rustc_hir_analysis/src/check/compare_method.rs
+++ b/compiler/rustc_hir_analysis/src/check/compare_method.rs
@@ -1746,10 +1746,7 @@ pub fn check_type_bounds<'tcx>(
            _ => predicates.push(
                ty::Binder::bind_with_vars(
                    ty::ProjectionPredicate {
-                        projection_ty: ty::AliasTy {
-                            def_id: trait_ty.def_id,
-                            substs: rebased_substs,
-                        },
+                        projection_ty: tcx.mk_alias_ty(trait_ty.def_id, rebased_substs),
                        term: impl_ty_value.into(),
                    },
                    bound_vars,