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// check-pass
// edition: 2021
// issue: 113796
#![feature(async_fn_in_trait)]
trait AsyncLendingIterator {
type Item<'a>
where
Self: 'a;
async fn next(&mut self) -> Option<Self::Item<'_>>;
}
struct Lend<I>(I);
impl<I> AsyncLendingIterator for Lend<I> {
type Item<'a> = &'a I
where
Self: 'a;
// Checking that the synthetic `<Self as AsyncLendingIterator>::next()` GAT
// is well-formed requires being able to assume the WF types of `next`.
async fn next(&mut self) -> Option<Self::Item<'_>> {
todo!()
}
}
fn main() {}
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