Struct futures_util::stream::Chain

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

[−] Expand description

An adapter for chaining the output of two streams.

The resulting stream produces items from first stream and then from second stream.

Trait Implementations

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

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

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Formats the value using the given formatter.

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

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type Item = St1::Item

Values yielded by the stream.

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

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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.