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Diffstat (limited to 'tests/ui/coherence/coherence_local.rs')
-rw-r--r-- | tests/ui/coherence/coherence_local.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/coherence/coherence_local.rs b/tests/ui/coherence/coherence_local.rs new file mode 100644 index 000000000..ea724ada7 --- /dev/null +++ b/tests/ui/coherence/coherence_local.rs @@ -0,0 +1,20 @@ +// Test that we are able to introduce a negative constraint that +// `MyType: !MyTrait` along with other "fundamental" wrappers. + +// check-pass +// aux-build:coherence_copy_like_lib.rs + +extern crate coherence_copy_like_lib as lib; + +struct MyType { x: i32 } + +// These are all legal because they are all fundamental types: + +impl lib::MyCopy for MyType { } +impl<'a> lib::MyCopy for &'a MyType { } +impl<'a> lib::MyCopy for &'a Box<MyType> { } +impl lib::MyCopy for Box<MyType> { } +impl lib::MyCopy for lib::MyFundamentalStruct<MyType> { } +impl lib::MyCopy for lib::MyFundamentalStruct<Box<MyType>> { } + +fn main() {} |