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1 | // Copyright 2015 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 | ||
7453a54e SL |
11 | // aux-build:empty-struct.rs |
12 | ||
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13 | #![feature(associated_consts)] |
14 | ||
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15 | extern crate empty_struct; |
16 | use empty_struct::XEmpty2 as XFoo; | |
17 | ||
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18 | struct Foo; |
19 | ||
54a0048b | 20 | #[derive(PartialEq, Eq)] |
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21 | enum Bar { |
22 | Var1, | |
23 | Var2, | |
24 | } | |
25 | ||
26 | // Use inherent and trait impls to test UFCS syntax. | |
27 | impl Foo { | |
28 | const MYBAR: Bar = Bar::Var2; | |
29 | } | |
30 | ||
31 | trait HasBar { | |
32 | const THEBAR: Bar; | |
33 | } | |
34 | ||
35 | impl HasBar for Foo { | |
36 | const THEBAR: Bar = Bar::Var1; | |
37 | } | |
38 | ||
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39 | impl HasBar for XFoo { |
40 | const THEBAR: Bar = Bar::Var1; | |
41 | } | |
42 | ||
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43 | fn main() { |
44 | // Inherent impl | |
45 | assert!(match Bar::Var2 { | |
46 | Foo::MYBAR => true, | |
47 | _ => false, | |
48 | }); | |
49 | assert!(match Bar::Var2 { | |
50 | <Foo>::MYBAR => true, | |
51 | _ => false, | |
52 | }); | |
53 | // Trait impl | |
54 | assert!(match Bar::Var1 { | |
55 | Foo::THEBAR => true, | |
56 | _ => false, | |
57 | }); | |
58 | assert!(match Bar::Var1 { | |
59 | <Foo>::THEBAR => true, | |
60 | _ => false, | |
61 | }); | |
62 | assert!(match Bar::Var1 { | |
63 | <Foo as HasBar>::THEBAR => true, | |
64 | _ => false, | |
65 | }); | |
7453a54e SL |
66 | assert!(match Bar::Var1 { |
67 | XFoo::THEBAR => true, | |
68 | _ => false, | |
69 | }); | |
70 | assert!(match Bar::Var1 { | |
71 | <XFoo>::THEBAR => true, | |
72 | _ => false, | |
73 | }); | |
74 | assert!(match Bar::Var1 { | |
75 | <XFoo as HasBar>::THEBAR => true, | |
76 | _ => false, | |
77 | }); | |
d9579d0f | 78 | } |