| //@ run-pass | |
| #![allow(dead_code)] | |
| trait Foo { fn f(&self) -> isize; } | |
| trait Bar : Foo { fn g(&self) -> isize; } | |
| struct A { x: isize } | |
| impl Foo for A { fn f(&self) -> isize { 10 } } | |
| impl Bar for A { fn g(&self) -> isize { 20 } } | |
| // Call a function on Foo, given a T: Bar | |
| fn gg<T:Bar>(a: &T) -> isize { | |
| a.f() | |
| } | |
| pub fn main() { | |
| let a = &A { x: 3 }; | |
| assert_eq!(gg(a), 10); | |
| } |