Support constraining opaque types while trait upcasting with binders

2024-04-17 10:48:20 +00:00
parent 7f292f41a0
commit 4387eea7f7
3 changed files with 3 additions and 11 deletions
--- a/compiler/rustc_trait_selection/src/traits/select/mod.rs
+++ b/compiler/rustc_trait_selection/src/traits/select/mod.rs
@@ -2594,7 +2594,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                        self.infcx
                            .at(&obligation.cause, obligation.param_env)
                            .eq(
-                                DefineOpaqueTypes::No,
+                                DefineOpaqueTypes::Yes,
                                upcast_principal.map_bound(|trait_ref| {
                                    ty::ExistentialTraitRef::erase_self_ty(tcx, trait_ref)
                                }),