//@ check-pass
use std::borrow::Cow;
enum _Recursive<'a>
where
Self: ToOwned<Owned=Box<Self>>
{
Variant(MyCow<'a, _Recursive<'a>>),
}
pub struct Wrapper<T>(T);
pub struct MyCow<'a, T: ToOwned<Owned=Box<T>> + 'a>(Wrapper<Cow<'a, T>>);
fn main() {}