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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. | |
4 | // | |
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. | |
10 | ||
223e47cc | 11 | |
c34b1796 AL |
12 | trait Foo { fn f(&self) -> isize; } |
13 | trait Bar : Foo { fn g(&self) -> isize; } | |
223e47cc | 14 | |
c34b1796 | 15 | struct A { x: isize } |
223e47cc | 16 | |
c34b1796 AL |
17 | impl Foo for A { fn f(&self) -> isize { 10 } } |
18 | impl Bar for A { fn g(&self) -> isize { 20 } } | |
19 | ||
20 | fn ff<T:Foo>(a: &T) -> isize { | |
223e47cc LB |
21 | a.f() |
22 | } | |
23 | ||
c34b1796 | 24 | fn gg<T:Bar>(a: &T) -> isize { |
223e47cc LB |
25 | a.g() |
26 | } | |
27 | ||
28 | pub fn main() { | |
29 | let a = &A { x: 3 }; | |
970d7e83 LB |
30 | assert_eq!(ff(a), 10); |
31 | assert_eq!(gg(a), 20); | |
223e47cc | 32 | } |