Struct futures_util::stream::Once [−][src]
A stream which emits single element and then EOF.
Trait Implementations
impl<Fut: Debug> Debug for Once<Fut>[src]
impl<Fut: Future> FusedStream for Once<Fut>[src]
fn is_terminated(&self) -> bool[src]
impl<Fut: Future> Stream for Once<Fut>[src]
type Item = Fut::Output
Values yielded by the stream.
fn poll_next(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>[src]
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Option<Self::Item>>
fn size_hint(&self) -> (usize, Option<usize>)[src]
impl<'__pin, Fut> Unpin for Once<Fut> where
__Origin<'__pin, Fut>: Unpin, [src]
__Origin<'__pin, Fut>: Unpin,
Auto Trait Implementations
impl<Fut> RefUnwindSafe for Once<Fut> where
Fut: RefUnwindSafe,
Fut: RefUnwindSafe,
impl<Fut> Send for Once<Fut> where
Fut: Send,
Fut: Send,
impl<Fut> Sync for Once<Fut> where
Fut: Sync,
Fut: Sync,
impl<Fut> UnwindSafe for Once<Fut> where
Fut: UnwindSafe,
Fut: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized, [src]
S: Stream<Item = Result<T, E>> + ?Sized,