rust/tests/ui/coherence/coherence_copy_like_err_struct.rs

// aux-build:coherence_copy_like_lib.rs

// Test that we are able to introduce a negative constraint that
// `MyType: !MyTrait` along with other "fundamental" wrappers.

extern crate coherence_copy_like_lib as lib;

struct MyType { x: i32 }

trait MyTrait { fn foo() {} }
impl<T: lib::MyCopy> MyTrait for T { }

// `MyStruct` is not declared fundamental, therefore this would
// require that
//
//     MyStruct<MyType>: !MyTrait
//
// which we cannot approve.
impl MyTrait for lib::MyStruct<MyType> { }
//~^ ERROR E0119

fn main() { }