// Copyright 2012 The Rust Project Developers. See the COPYRIGHT // file at the top-level directory of this distribution and at // http://rust-lang.org/COPYRIGHT. // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. #[allow(default_methods)]; trait Foo { fn f() { io::println("Hello!"); self.g(); } fn g(); } struct A { x: int } impl A : Foo { fn g() { io::println("Goodbye!"); } } fn main() { let a = A { x: 1 }; a.f(); }