diff options
Diffstat (limited to 'src/test/ui/suggestions/impl-trait-missing-lifetime.rs')
-rw-r--r-- | src/test/ui/suggestions/impl-trait-missing-lifetime.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/test/ui/suggestions/impl-trait-missing-lifetime.rs b/src/test/ui/suggestions/impl-trait-missing-lifetime.rs new file mode 100644 index 000000000..6f7c912d7 --- /dev/null +++ b/src/test/ui/suggestions/impl-trait-missing-lifetime.rs @@ -0,0 +1,20 @@ +// edition:2021 + +#![feature(anonymous_lifetime_in_impl_trait)] + +// This is understood as `fn foo<'_1>(_: impl Iterator<Item = &'_1 ()>) {}`. +fn f(_: impl Iterator<Item = &'_ ()>) {} + +// But that lifetime does not participate in resolution. +fn g(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() } +//~^ ERROR missing lifetime specifier + +// This is understood as `fn foo<'_1>(_: impl Iterator<Item = &'_1 ()>) {}`. +async fn h(_: impl Iterator<Item = &'_ ()>) {} + +// But that lifetime does not participate in resolution. +async fn i(mut x: impl Iterator<Item = &'_ ()>) -> Option<&'_ ()> { x.next() } +//~^ ERROR missing lifetime specifier +//~| ERROR lifetime may not live long enough + +fn main() {} |