async_iterator/lending_iter/mod.rs
1/// An interface for dealing with iterators which borrow from `Self`
2
3#[must_use = "iterators are lazy and do nothing unless consumed"]
4pub trait LendingIterator {
5 /// The type of the elements being iterated over.
6 type Item<'a>
7 where
8 Self: 'a;
9
10 /// Advances the iterator and returns the next value.
11 async fn next(&mut self) -> Option<Self::Item<'_>>;
12}