diff options
Diffstat (limited to 'tests/ui/impl-trait/in-trait/variance.rs')
-rw-r--r-- | tests/ui/impl-trait/in-trait/variance.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/in-trait/variance.rs b/tests/ui/impl-trait/in-trait/variance.rs new file mode 100644 index 000000000..f8e4ab88c --- /dev/null +++ b/tests/ui/impl-trait/in-trait/variance.rs @@ -0,0 +1,20 @@ +#![feature(rustc_attrs, return_position_impl_trait_in_trait)] +#![allow(internal_features)] +#![rustc_variance_of_opaques] + +trait Captures<'a> {} +impl<T> Captures<'_> for T {} + +trait Foo<'i> { + fn implicit_capture_early<'a: 'a>() -> impl Sized {} + //~^ [o, *, *, o, o] + // Self, 'i, 'a, 'i_duplicated, 'a_duplicated + + fn explicit_capture_early<'a: 'a>() -> impl Sized + Captures<'a> {} //~ [o, *, *, o, o] + + fn implicit_capture_late<'a>(_: &'a ()) -> impl Sized {} //~ [o, *, o, o] + + fn explicit_capture_late<'a>(_: &'a ()) -> impl Sized + Captures<'a> {} //~ [o, *, o, o] +} + +fn main() {} |