diff options
Diffstat (limited to 'tests/ui/nll/ty-outlives/projection-body.rs')
-rw-r--r-- | tests/ui/nll/ty-outlives/projection-body.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/tests/ui/nll/ty-outlives/projection-body.rs b/tests/ui/nll/ty-outlives/projection-body.rs new file mode 100644 index 000000000..b03a539eb --- /dev/null +++ b/tests/ui/nll/ty-outlives/projection-body.rs @@ -0,0 +1,27 @@ +// Test that when we infer the lifetime to a subset of the fn body, it +// works out. +// +// check-pass + +trait MyTrait<'a> { + type Output; +} + +fn foo1<T>() +where + for<'x> T: MyTrait<'x>, +{ + // Here the region `'c` in `<T as MyTrait<'c>>::Output` will be + // inferred to a subset of the fn body. + let x = bar::<T::Output>(); + drop(x); +} + +fn bar<'a, T>() -> &'a () +where + T: 'a, +{ + &() +} + +fn main() {} |