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1a4d82fc | 1 | // Copyright 2015 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 | ||
85aaf69f | 11 | |
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12 | // The main purpose of this test is to ensure that different impls of the same |
13 | // trait can refer to each other without setting off the static recursion check | |
14 | // (as long as there's no actual recursion). | |
15 | ||
16 | trait Foo { | |
17 | const BAR: u32; | |
18 | } | |
19 | ||
20 | struct IsFoo1; | |
21 | ||
22 | impl Foo for IsFoo1 { | |
23 | const BAR: u32 = 1; | |
24 | } | |
25 | ||
26 | struct IsFoo2; | |
223e47cc | 27 | |
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28 | impl Foo for IsFoo2 { |
29 | const BAR: u32 = <IsFoo1 as Foo>::BAR; | |
30 | } | |
31 | ||
32 | fn main() { | |
33 | assert_eq!(<IsFoo1>::BAR, <IsFoo2 as Foo>::BAR); | |
c34b1796 | 34 | } |