diff options
Diffstat (limited to 'src/test/ui/impl-trait/issue-55872.rs')
-rw-r--r-- | src/test/ui/impl-trait/issue-55872.rs | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/test/ui/impl-trait/issue-55872.rs b/src/test/ui/impl-trait/issue-55872.rs new file mode 100644 index 000000000..c4e6f6436 --- /dev/null +++ b/src/test/ui/impl-trait/issue-55872.rs @@ -0,0 +1,18 @@ +#![feature(type_alias_impl_trait)] + +pub trait Bar { + type E: Copy; + + fn foo<T>() -> Self::E; +} + +impl<S> Bar for S { + type E = impl Copy; + + fn foo<T>() -> Self::E { + || () + //~^ ERROR type parameter `T` is part of concrete type but not used in parameter list for the `impl Trait` type alias + } +} + +fn main() {} |