src/test/ui/type-alias-impl-trait/issue-74761.rs

   1 #![feature(member_constraints)]
   2 #![feature(type_alias_impl_trait)]
   3
   4 pub trait A {
   5     type B;
   6     fn f(&self) -> Self::B;
   7 }
   8 impl<'a, 'b> A for () {
   9     //~^ ERROR the lifetime parameter `'a` is not constrained
  10     //~| ERROR the lifetime parameter `'b` is not constrained
  11     type B = impl core::fmt::Debug;
  12
  13     fn f(&self) -> Self::B {}
  14 }
  15
  16 fn main() {}