[−][src]Function futures::future::maybe_done
ⓘImportant traits for MaybeDone<Fut>
pub fn maybe_done<Fut>(future: Fut) -> MaybeDone<Fut> where
Fut: Future,
Wraps a future into a MaybeDone
Examples
use futures::future; use futures::pin_mut; let future = future::maybe_done(async { 5 }); pin_mut!(future); assert_eq!(future.as_mut().take_output(), None); let () = future.as_mut().await; assert_eq!(future.as_mut().take_output(), Some(5)); assert_eq!(future.as_mut().take_output(), None);