diff options
Diffstat (limited to 'src/test/ui/late-bound-lifetimes/downgraded_to_early_through_alias.rs')
-rw-r--r-- | src/test/ui/late-bound-lifetimes/downgraded_to_early_through_alias.rs | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/ui/late-bound-lifetimes/downgraded_to_early_through_alias.rs b/src/test/ui/late-bound-lifetimes/downgraded_to_early_through_alias.rs new file mode 100644 index 000000000..e56a34218 --- /dev/null +++ b/src/test/ui/late-bound-lifetimes/downgraded_to_early_through_alias.rs @@ -0,0 +1,24 @@ +// check-pass + +trait Gats<'a> { + type Assoc; + type Assoc2; +} + +trait Trait: for<'a> Gats<'a> { + fn foo<'a>(_: &mut <Self as Gats<'a>>::Assoc) -> <Self as Gats<'a>>::Assoc2; +} + +impl<'a> Gats<'a> for () { + type Assoc = &'a u32; + type Assoc2 = (); +} + +type GatsAssoc<'a, T> = <T as Gats<'a>>::Assoc; +type GatsAssoc2<'a, T> = <T as Gats<'a>>::Assoc2; + +impl Trait for () { + fn foo<'a>(_: &mut GatsAssoc<'a, Self>) -> GatsAssoc2<'a, Self> {} +} + +fn main() {} |