tests/ui/specialization/min_specialization/repeated_projection_type.rs

   1 // Test that projection bounds can't be specialized on.
   2
   3 #![feature(min_specialization)]
   4
   5 trait X {
   6     fn f();
   7 }
   8 trait Id {
   9     type This;
  10 }
  11 impl<T> Id for T {
  12     type This = T;
  13 }
  14
  15 impl<T: Id> X for T {
  16     default fn f() {}
  17 }
  18
  19 impl<I, V: Id<This = (I,)>> X for V {
  20     //~^ ERROR cannot specialize on
  21     fn f() {}
  22 }
  23
  24 fn main() {}