Relax constrained generics to TypeVisitable

2022-06-17 13:10:07 +01:00
parent f66c06f7f2
commit e9e5d0685b
23 changed files with 56 additions and 43 deletions
--- a/compiler/rustc_middle/src/ty/structural_impls.rs
+++ b/compiler/rustc_middle/src/ty/structural_impls.rs
@@ -453,7 +453,7 @@ impl<'a, 'tcx> Lift<'tcx> for ty::PredicateKind<'a> {

 impl<'a, 'tcx, T: Lift<'tcx>> Lift<'tcx> for ty::Binder<'a, T>
 where
-    <T as Lift<'tcx>>::Lifted: TypeFoldable<'tcx>,
+    <T as Lift<'tcx>>::Lifted: TypeVisitable<'tcx>,
 {
    type Lifted = ty::Binder<'tcx, T::Lifted>;
    fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> {