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Diffstat (limited to '')
-rw-r--r-- | src/test/ui/type-alias-impl-trait/generic_duplicate_param_use2.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use2.rs b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use2.rs new file mode 100644 index 000000000..201535efe --- /dev/null +++ b/src/test/ui/type-alias-impl-trait/generic_duplicate_param_use2.rs @@ -0,0 +1,13 @@ +#![feature(type_alias_impl_trait)] + +use std::fmt::Debug; + +fn main() {} + +// test that unused generic parameters are ok +type Two<T, U> = impl Debug; + +fn two<T: Debug, U>(t: T, _: U) -> Two<T, U> { + t + //~^ ERROR `T` doesn't implement `Debug` +} |