rust/tests/ui/traits/object/bounds-cycle-1.rs

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// Check that we don't have a cycle when we try to normalize `Self::U` in the
// bound below.
// check-pass
trait Is {
type T;
}
impl<U> Is for U {
type T = U;
}
trait Obj {
type U: Is<T = Self::U>;
}
fn is_obj<T: ?Sized + Obj>(_: &T) {}
fn f(x: &dyn Obj<U = i32>) {
is_obj(x)
}
fn main() {}