Struct futures::future::FlattenSink

pub struct FlattenSink<Fut, Si> { /* private fields */ }

Sink for the flatten_sink method.

Trait Implementations

impl<Fut, Si> Debug for FlattenSink<Fut, Si>

where TryFlatten<Fut, Si>: Debug,

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

Formats the value using the given formatter.

impl<Fut, Si> FusedStream for FlattenSink<Fut, Si>

where TryFlatten<Fut, Si>: FusedStream,

fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

impl<_Item, Fut, Si> Sink<_Item> for FlattenSink<Fut, Si>

where TryFlatten<Fut, Si>: Sink<_Item>,

type Error = <TryFlatten<Fut, Si> as Sink<_Item>>::Error

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

fn poll_ready( self: Pin<&mut FlattenSink<Fut, Si>>, cx: &mut Context<'_> ) -> Poll<Result<(), <FlattenSink<Fut, Si> as Sink<_Item>>::Error>>

Attempts to prepare the Sink to receive a value.

fn start_send( self: Pin<&mut FlattenSink<Fut, Si>>, item: _Item ) -> Result<(), <FlattenSink<Fut, Si> as Sink<_Item>>::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 FlattenSink<Fut, Si>>, cx: &mut Context<'_> ) -> Poll<Result<(), <FlattenSink<Fut, Si> as Sink<_Item>>::Error>>

Flush any remaining output from this sink.

fn poll_close( self: Pin<&mut FlattenSink<Fut, Si>>, cx: &mut Context<'_> ) -> Poll<Result<(), <FlattenSink<Fut, Si> as Sink<_Item>>::Error>>

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

impl<Fut, Si> Stream for FlattenSink<Fut, Si>

where TryFlatten<Fut, Si>: Stream,

type Item = <TryFlatten<Fut, Si> as Stream>::Item

Values yielded by the stream.

fn poll_next( self: Pin<&mut FlattenSink<Fut, Si>>, cx: &mut Context<'_> ) -> Poll<Option<<FlattenSink<Fut, Si> as Stream>::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, Fut, Si> Unpin for FlattenSink<Fut, Si>

where __Origin<'__pin, Fut, Si>: Unpin,