| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // Test that we are able to introduce a negative constraint that |
| // `MyType: !MyTrait` along with other "fundamental" wrappers. |
| |
| // aux-build:coherence_copy_like_lib.rs |
| |
| extern crate coherence_copy_like_lib as lib; |
| |
| struct MyType { x: i32 } |
| |
| trait MyTrait { } |
| impl<T: lib::MyCopy> MyTrait for T { } |
| |
| // Tuples are not fundamental, therefore this would require that |
| // |
| // (MyType,): !MyTrait |
| // |
| // which we cannot approve. |
| impl MyTrait for (MyType,) { } //~ ERROR E0119 |
| |
| fn main() { } |
