1 // Check that default generics associated types are validated.
3 #![feature(specialization)]
4 #![feature(generic_associated_types)]
5 //~^^ WARNING `specialization` is incomplete
8 type U<'a>: PartialEq<&'a Self> where Self: 'a;
9 fn unsafe_compare<'b>(x: Option<Self::U<'b>>, y: Option<&'b Self>) {
11 (Some(a), Some(b)) => a == b,
17 impl<T: 'static> X for T {
18 default type U<'a> = &'a T;
19 //~^ ERROR can't compare `T` with `T`
25 <NotComparable as X>::unsafe_compare(None, None);