tests/ui/impl-trait/associated-impl-trait-type-generic-trait.rs

   1 #![feature(type_alias_impl_trait)]
   2 // build-pass (FIXME(62277): could be check-pass?)
   3
   4 trait Bar {}
   5 struct Dummy<U>(U);
   6 impl<V> Bar for Dummy<V> {}
   7
   8 trait Foo<T> {
   9     type Assoc: Bar;
  10     fn foo(t: T) -> Self::Assoc;
  11 }
  12
  13 impl<W> Foo<W> for i32 {
  14     type Assoc = impl Bar;
  15     fn foo(w: W) -> Self::Assoc {
  16         Dummy(w)
  17     }
  18 }
  19
  20 struct NonGeneric;
  21 impl Bar for NonGeneric {}
  22
  23 impl<W> Foo<W> for u32 {
  24     type Assoc = impl Bar;
  25     fn foo(_: W) -> Self::Assoc {
  26         NonGeneric
  27     }
  28 }
  29
  30 fn main() {}