diff options
Diffstat (limited to 'src/test/ui/type-alias-impl-trait/issue-58887.rs')
-rw-r--r-- | src/test/ui/type-alias-impl-trait/issue-58887.rs | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/test/ui/type-alias-impl-trait/issue-58887.rs b/src/test/ui/type-alias-impl-trait/issue-58887.rs new file mode 100644 index 000000000..96ac78602 --- /dev/null +++ b/src/test/ui/type-alias-impl-trait/issue-58887.rs @@ -0,0 +1,22 @@ +// run-pass + +#![feature(type_alias_impl_trait)] + +trait UnwrapItemsExt { + type Iter; + fn unwrap_items(self) -> Self::Iter; +} + +impl<I, T, E> UnwrapItemsExt for I +where + I: Iterator<Item = Result<T, E>>, + E: std::fmt::Debug, +{ + type Iter = impl Iterator<Item = T>; + + fn unwrap_items(self) -> Self::Iter { + self.map(|x| x.unwrap()) + } +} + +fn main() {} |