diff options
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/traits/object/bounds-cycle-2.rs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/traits/object/bounds-cycle-2.rs b/src/test/ui/traits/object/bounds-cycle-2.rs new file mode 100644 index 000000000..4c1df3805 --- /dev/null +++ b/src/test/ui/traits/object/bounds-cycle-2.rs @@ -0,0 +1,28 @@ +// Check that we don't have a cycle when we try to normalize `Self::V` in the +// bound below. + +// check-pass + +trait Is { + type T; +} + +impl<U> Is for U { + type T = U; +} + +trait Super { + type V; +} + +trait Obj: Super { + type U: Is<T = Self::V>; +} + +fn is_obj<T: ?Sized + Obj>(_: &T) {} + +fn f(x: &dyn Obj<U = i32, V = i32>) { + is_obj(x) +} + +fn main() {} |