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Diffstat (limited to 'tests/ui/lifetimes/issue-105507.fixed')
-rw-r--r-- | tests/ui/lifetimes/issue-105507.fixed | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/ui/lifetimes/issue-105507.fixed b/tests/ui/lifetimes/issue-105507.fixed new file mode 100644 index 000000000..277ce8a77 --- /dev/null +++ b/tests/ui/lifetimes/issue-105507.fixed @@ -0,0 +1,43 @@ +// run-rustfix +// +#![allow(warnings)] +struct Wrapper<'a, T: ?Sized>(&'a T); + +trait Project { + type Projected<'a> where Self: 'a; + fn project(this: Wrapper<'_, Self>) -> Self::Projected<'_>; +} +trait MyTrait {} +trait ProjectedMyTrait {} + +impl<T> Project for Option<T> { + type Projected<'a> = Option<Wrapper<'a, T>> where T: 'a; + fn project(this: Wrapper<'_, Self>) -> Self::Projected<'_> { + this.0.as_ref().map(Wrapper) + } +} + +impl<T: MyTrait> MyTrait for Option<Wrapper<'_, T>> {} + +impl<T: ProjectedMyTrait> MyTrait for Wrapper<'_, T> {} + +impl<T> ProjectedMyTrait for T + where + T: Project, + for<'a> T::Projected<'a>: MyTrait, + //~^ NOTE due to current limitations in the borrow checker, this implies a `'static` lifetime + //~| NOTE due to current limitations in the borrow checker, this implies a `'static` lifetime +{} + +fn require_trait<T: MyTrait>(_: T) {} + +fn foo<T : MyTrait + 'static + 'static, U : MyTrait + 'static + 'static>(wrap: Wrapper<'_, Option<T>>, wrap1: Wrapper<'_, Option<U>>) { + //~^ HELP consider restricting the type parameter to the `'static` lifetime + //~| HELP consider restricting the type parameter to the `'static` lifetime + require_trait(wrap); + //~^ ERROR `T` does not live long enough + require_trait(wrap1); + //~^ ERROR `U` does not live long enough +} + +fn main() {} |