Deeply check that method signatures match, and allow for nested RPITITs

2022-09-02 21:02:59 +00:00
parent 1f03edeabe
commit cdf78073c5
13 changed files with 231 additions and 52 deletions
--- a/compiler/rustc_middle/src/ty/util.rs
+++ b/compiler/rustc_middle/src/ty/util.rs
@@ -651,6 +651,13 @@ impl<'tcx> TyCtxt<'tcx> {
        ty::EarlyBinder(self.type_of(def_id))
    }

+    pub fn bound_trait_impl_trait_tys(
+        self,
+        def_id: DefId,
+    ) -> ty::EarlyBinder<Result<&'tcx FxHashMap<DefId, Ty<'tcx>>, ErrorGuaranteed>> {
+        ty::EarlyBinder(self.compare_predicates_and_trait_impl_trait_tys(def_id))
+    }
+
    pub fn bound_fn_sig(self, def_id: DefId) -> ty::EarlyBinder<ty::PolyFnSig<'tcx>> {
        ty::EarlyBinder(self.fn_sig(def_id))
    }