src/test/ui/generic-associated-types/issue-88595.rs

   1 #![feature(generic_associated_types)]
   2 #![feature(type_alias_impl_trait)]
   3
   4 fn main() {}
   5
   6 trait A<'a> {
   7     type B<'b>: Clone
   8     // FIXME(generic_associated_types): Remove one of the below bounds
   9     // https://github.com/rust-lang/rust/pull/90678#discussion_r744976085
  10     where
  11         'a: 'b, Self: 'a, Self: 'b;
  12
  13     fn a(&'a self) -> Self::B<'a>;
  14 }
  15
  16 struct C;
  17
  18 impl<'a> A<'a> for C {
  19     type B<'b> = impl Clone;
  20     //~^ ERROR: lifetime bound not satisfied
  21     //~| ERROR: could not find defining uses
  22
  23     fn a(&'a self) -> Self::B<'a> {} //~ ERROR: non-defining opaque type use in defining scope
  24 }