| // check-pass | |
| #![allow(dead_code)] | |
| // pretty-expanded FIXME #23616 | |
| trait T0 { | |
| type O; | |
| fn dummy(&self) { } | |
| } | |
| struct S<A>(A); | |
| impl<A> T0 for S<A> { type O = A; } | |
| trait T1: T0 { | |
| // this looks okay but as we see below, `f` is unusable | |
| fn m0<F: Fn(<Self as T0>::O) -> bool>(self, f: F) -> bool; | |
| } | |
| // complains about mismatched types: <S<A> as T0>::O vs. A | |
| impl<A> T1 for S<A> | |
| { | |
| fn m0<F: Fn(<Self as T0>::O) -> bool>(self, f: F) -> bool { f(self.0) } | |
| } | |
| fn main() { } |