diff options
Diffstat (limited to 'tests/ui/impl-trait/multiple-lifetimes/ordinary-bounds-pick-original-elided.rs')
-rw-r--r-- | tests/ui/impl-trait/multiple-lifetimes/ordinary-bounds-pick-original-elided.rs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/tests/ui/impl-trait/multiple-lifetimes/ordinary-bounds-pick-original-elided.rs b/tests/ui/impl-trait/multiple-lifetimes/ordinary-bounds-pick-original-elided.rs new file mode 100644 index 000000000..0bddce49b --- /dev/null +++ b/tests/ui/impl-trait/multiple-lifetimes/ordinary-bounds-pick-original-elided.rs @@ -0,0 +1,25 @@ +// edition:2018 +// build-pass (FIXME(62277): could be check-pass? + +trait Trait<'a, 'b> {} +impl<T> Trait<'_, '_> for T {} + +// Test case where we have elision in the impl trait and we have to +// pick the right region. + +// Ultimately `Trait<'x, 'static>`. +fn upper_bounds1(a: &u8) -> impl Trait<'_, 'static> { + (a, a) +} + +// Ultimately `Trait<'x, 'x>`, so not really multiple bounds. +fn upper_bounds2(a: &u8) -> impl Trait<'_, '_> { + (a, a) +} + +// Kind of a weird annoying case. +fn upper_bounds3<'b>(a: &u8) -> impl Trait<'_, 'b> { + (a, a) +} + +fn main() {} |