| // 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 |
| // revisions: old re |
| |
| #![cfg_attr(re, feature(re_rebalance_coherence))] |
| |
| extern crate coherence_copy_like_lib as lib; |
| |
| struct MyType { x: i32 } |
| |
| trait MyTrait { fn foo() {} } |
| 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,) { } |
| //[old]~^ ERROR E0119 |
| //[re]~^^ ERROR E0119 |
| |
| fn main() { } |
