Struct futures_util::future::FlattenStream

pub struct FlattenStream<F>
where
    F: Future,
{
    inner: Flatten<F, <F as Future>::Output>,
}

Stream for the flatten_stream method.

Fields

inner: Flatten<F, <F as Future>::Output>

Implementations

impl<F> FlattenStream<F>

where F: Future,

pub(crate) fn new(x: F) -> Self

Trait Implementations

impl<F> Debug for FlattenStream<F>

where Flatten<F, <F as Future>::Output>: Debug, F: Future,

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<F> FusedStream for FlattenStream<F>

where Flatten<F, <F as Future>::Output>: FusedStream, F: Future,

fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

impl<_Item, F> Sink<_Item> for FlattenStream<F>

where Flatten<F, <F as Future>::Output>: Sink<_Item>, F: Future,

type Error = <Flatten<F, <F as Future>::Output> as Sink<_Item>>::Error

The type of value produced by the sink when an error occurs.

fn poll_ready( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Self::Error>>

Attempts to prepare the Sink to receive a value.

fn start_send(self: Pin<&mut Self>, item: _Item) -> Result<(), Self::Error>

Begin the process of sending a value to the sink. Each call to this function must be preceded by a successful call to poll_ready which returned Poll::Ready(Ok(())).

fn poll_flush( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Self::Error>>

Flush any remaining output from this sink.

fn poll_close( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Result<(), Self::Error>>

Flush any remaining output and close this sink, if necessary.

impl<F> Stream for FlattenStream<F>

where Flatten<F, <F as Future>::Output>: Stream, F: Future,

type Item = <Flatten<F, <F as Future>::Output> as Stream>::Item

Values yielded by the stream.

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted.

fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream.

impl<'__pin, F> Unpin for FlattenStream<F>

where PinnedFieldsOf<__Origin<'__pin, F>>: Unpin, F: Future,