rust/tests/ui/type-alias-impl-trait/assoc-type-lifetime.rs

27 lines
481 B
Rust

// Tests that we still detect defining usages when
// lifetimes are used in an associated opaque type
//@ check-pass
#![feature(impl_trait_in_assoc_type)]
trait UnwrapItemsExt<'a> {
type Iter;
fn unwrap_items(self) -> Self::Iter;
}
struct MyStruct {}
trait MyTrait<'a> {}
impl<'a> MyTrait<'a> for MyStruct {}
impl<'a, I> UnwrapItemsExt<'a> for I {
type Iter = impl MyTrait<'a>;
fn unwrap_items(self) -> Self::Iter {
MyStruct {}
}
}
fn main() {}