// 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 { // Testing that this impl can call the impl of Foo fn g(&self) -> isize { self.f() } } pub fn main() { let a = &A { x: 3 }; assert_eq!(a.g(), 10); }