[rustc.git] / src / test / ui / coherence / coherence-conflicting-negative-trait-impl.rs

#![feature(negative_impls)]
#![feature(marker_trait_attr)]

#[marker]
trait MyTrait {}

struct TestType<T>(::std::marker::PhantomData<T>);

unsafe impl<T: MyTrait + 'static> Send for TestType<T> {}

impl<T: MyTrait> !Send for TestType<T> {} //~ ERROR found both positive and negative implementation

unsafe impl<T: 'static> Send for TestType<T> {} //~ ERROR conflicting implementations

impl !Send for TestType<i32> {}

fn main() {}
Commit	Line	Data
ba9703b0	1	#![feature(negative_impls)]
74b04a01	2	#![feature(marker_trait_attr)]
85aaf69f	3
74b04a01	4	#[marker]
9346a6ac	5	trait MyTrait {}
85aaf69f SL	6
	7	struct TestType<T>(::std::marker::PhantomData<T>);
	8
ba9703b0	9	unsafe impl<T: MyTrait + 'static> Send for TestType<T> {}
85aaf69f	10
ba9703b0	11	impl<T: MyTrait> !Send for TestType<T> {} //~ ERROR found both positive and negative implementation
85aaf69f	12
ba9703b0	13	unsafe impl<T: 'static> Send for TestType<T> {} //~ ERROR conflicting implementations
85aaf69f SL	14
	15	impl !Send for TestType<i32> {}
	16
	17	fn main() {}