Struct futures_util::stream::Chain

#[must_use = "streams do nothing unless polled"]pub struct Chain<St1, St2> { /* fields omitted */ }

Stream for the chain method.

Trait Implementations

impl<St1: Debug, St2: Debug> Debug for Chain<St1, St2>

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

Formats the value using the given formatter.

impl<St1, St2> FusedStream for Chain<St1, St2> where
    St1: Stream,
    St2: FusedStream<Item = St1::Item>, 

fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

impl<St1, St2> Stream for Chain<St1, St2> where
    St1: Stream,
    St2: Stream<Item = St1::Item>, 

type Item = St1::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, St1, St2> Unpin for Chain<St1, St2> where
    __Origin<'__pin, St1, St2>: Unpin,