// 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 or the MIT license // , 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 MyTrait for T { } //~ ERROR E0119 // Tuples are not fundamental, therefore this would require that // // (MyType,): !MyTrait // // which we cannot approve. impl MyTrait for (MyType,) { } fn main() { }