1 // Copyright 2012 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
12 trait Foo { fn f(&self) -> isize; }
13 trait Bar { fn g(&self) -> isize; }
14 trait Baz { fn h(&self) -> isize; }
16 trait Quux: Foo + Bar + Baz { }
20 impl Foo for A { fn f(&self) -> isize { 10 } }
21 impl Bar for A { fn g(&self) -> isize { 20 } }
22 impl Baz for A { fn h(&self) -> isize { 30 } }
25 fn f<T:Quux + Foo + Bar + Baz>(a: &T) {
26 assert_eq!(a.f(), 10);
27 assert_eq!(a.g(), 20);
28 assert_eq!(a.h(), 30);