diff options
Diffstat (limited to 'tests/ui/coherence/coherence_local_err_tuple.rs')
-rw-r--r-- | tests/ui/coherence/coherence_local_err_tuple.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/coherence/coherence_local_err_tuple.rs b/tests/ui/coherence/coherence_local_err_tuple.rs new file mode 100644 index 000000000..f4033862a --- /dev/null +++ b/tests/ui/coherence/coherence_local_err_tuple.rs @@ -0,0 +1,18 @@ +// 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 +#![allow(dead_code)] + +extern crate coherence_copy_like_lib as lib; + +struct MyType { x: i32 } + +// These are all legal because they are all fundamental types: + +// Tuples are not fundamental, so this is not a local impl. +impl lib::MyCopy for (MyType,) { } +//~^ ERROR E0117 + + +fn main() { } |