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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 | ||
11 | // aux-build:coherence_copy_like_lib.rs | |
12 | ||
13 | // Test that we are able to introduce a negative constraint that | |
14 | // `MyType: !MyTrait` along with other "fundamental" wrappers. | |
15 | ||
16 | extern crate coherence_copy_like_lib as lib; | |
17 | ||
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18 | struct MyType { x: i32 } |
19 | ||
9346a6ac | 20 | trait MyTrait { } |
54a0048b | 21 | impl<T: lib::MyCopy> MyTrait for T { } |
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22 | |
23 | // `MyStruct` is not declared fundamental, therefore this would | |
24 | // require that | |
25 | // | |
26 | // MyStruct<MyType>: !MyTrait | |
27 | // | |
28 | // which we cannot approve. | |
54a0048b | 29 | impl MyTrait for lib::MyStruct<MyType> { } //~ ERROR E0119 |
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30 | |
31 | fn main() { } |