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fold_with not super_fold_with in TypeFoldable impl for Predicate

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This commit is contained in:
Jack Huey 2021-01-04 01:14:07 -05:00
parent 4cd6f85a07
commit 876192e8cd
2 changed files with 2 additions and 2 deletions
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2
compiler/rustc_middle/src/ty/structural_impls.rs
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@ -1017,7 +1017,7 @@ fn visit_with<V: TypeVisitor<'tcx>>(&self, visitor: &mut V) -> ControlFlow<V::Br
impl<'tcx> TypeFoldable<'tcx> for ty::Predicate<'tcx> {
fn super_fold_with<F: TypeFolder<'tcx>>(self, folder: &mut F) -> Self {
let new = self.inner.kind.super_fold_with(folder);
let new = self.inner.kind.fold_with(folder);
folder.tcx().reuse_or_mk_predicate(self, new)
}

2
src/test/ui/specialization/min_specialization/repeated_projection_type.stderr
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@ -1,4 +1,4 @@
error: cannot specialize on `ForAll(Binder(ProjectionPredicate(ProjectionTy { substs: [V], item_def_id: DefId(0:6 ~ repeated_projection_type[317d]::Id::This) }, (I,))))`
error: cannot specialize on `Binder(ProjectionPredicate(ProjectionTy { substs: [V], item_def_id: DefId(0:6 ~ repeated_projection_type[317d]::Id::This) }, (I,)))`
--> $DIR/repeated_projection_type.rs:19:1
|
LL | / impl<I, V: Id<This = (I,)>> X for V {