Struct futures_util::future::FlattenStream

#[must_use = "streams do nothing unless polled"]
pub struct FlattenStream<Fut: Future> { /* fields omitted */ }

Stream for the flatten_stream method.

Trait Implementations

impl<Fut> Debug for FlattenStream<Fut> where
    Fut: Future + Debug,
    Fut::Output: Debug, 

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

Formats the value using the given formatter.

impl<Fut> Stream for FlattenStream<Fut> where
    Fut: Future,
    Fut::Output: Stream, 

type Item = <Fut::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<Fut> FusedStream for FlattenStream<Fut> where
    Fut: Future,
    Fut::Output: Stream + FusedStream, 

fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.