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1a4d82fc | 1 | // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT |
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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 | // Testing that supertrait methods can be called on subtrait object types |
223e47cc | 12 | |
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13 | // pretty-expanded FIXME #23616 |
14 | ||
223e47cc | 15 | trait Foo { |
c34b1796 | 16 | fn f(&self) -> isize; |
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17 | } |
18 | ||
19 | trait Bar : Foo { | |
c34b1796 | 20 | fn g(&self) -> isize; |
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21 | } |
22 | ||
23 | struct A { | |
c34b1796 | 24 | x: isize |
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25 | } |
26 | ||
27 | impl Foo for A { | |
c34b1796 | 28 | fn f(&self) -> isize { 10 } |
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29 | } |
30 | ||
31 | impl Bar for A { | |
c34b1796 | 32 | fn g(&self) -> isize { 20 } |
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33 | } |
34 | ||
35 | pub fn main() { | |
36 | let a = &A { x: 3 }; | |
37 | let afoo = a as &Foo; | |
38 | let abar = a as &Bar; | |
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39 | assert_eq!(afoo.f(), 10); |
40 | assert_eq!(abar.g(), 20); | |
41 | assert_eq!(abar.f(), 10); | |
223e47cc | 42 | } |