rust/bb02_async: remove qualifier
Already imported at the top.
@@ -38,7 +38,7 @@ pub struct AsyncOption<'a, O>(&'a RefCell<Option<O>>);
impl<O> core::future::Future for AsyncOption<'_, O> {
type Output = ();
- fn poll(self: core::pin::Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Self::Output> {
+ fn poll(self: Pin<&mut Self>, _cx: &mut Context<'_>) -> Poll<Self::Output> {
match *self.0.borrow() {
None => Poll::Pending,
Some(_) => Poll::Ready(()),
