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1 | // Copyright 2013 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. | |
1a4d82fc | 10 | // |
1a4d82fc JJ |
11 | |
12 | ||
13 | // Tests that we can call a function bounded over a supertrait from | |
14 | // a default method | |
223e47cc | 15 | |
c34b1796 | 16 | fn require_y<T: Y>(x: T) -> isize { x.y() } |
1a4d82fc JJ |
17 | |
18 | trait Y { | |
c34b1796 | 19 | fn y(self) -> isize; |
1a4d82fc | 20 | } |
223e47cc | 21 | |
223e47cc | 22 | |
1a4d82fc | 23 | trait Z: Y + Sized { |
c34b1796 | 24 | fn x(self) -> isize { |
1a4d82fc JJ |
25 | require_y(self) |
26 | } | |
27 | } | |
28 | ||
c34b1796 AL |
29 | impl Y for isize { |
30 | fn y(self) -> isize { self } | |
1a4d82fc JJ |
31 | } |
32 | ||
c34b1796 | 33 | impl Z for isize {} |
970d7e83 | 34 | |
1a4d82fc JJ |
35 | pub fn main() { |
36 | assert_eq!(12.x(), 12); | |
223e47cc | 37 | } |