// 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. // xfail-test // Testing that supertrait methods can be called on subtrait object types // It's not clear yet that we want this trait Foo { fn f() -> int; } trait Bar : Foo { fn g() -> int; } struct A { x: int } impl A : Foo { fn f() -> int { 10 } } impl A : Bar { fn g() -> int { 20 } } pub fn main() { let a = &A { x: 3 }; let afoo = a as &Foo; let abar = a as &Bar; assert afoo.f() == 10; assert abar.g() == 20; assert abar.f() == 10; }