Struct futures::stream::Empty

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#[must_use = "streams do nothing unless polled"]
pub struct Empty<T> { /* fields omitted */ }

[−] Expand description

A stream which contains no elements.

This stream can be created with the stream::empty function.

Trait Implementations

impl<T> Unpin for Empty<T>

impl<T> Debug for Empty<T> where     T: Debug,

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

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Formats the value using the given formatter.

impl<T> Stream for Empty<T>

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type Item = T

Values yielded by the stream.

fn poll_next(     self: PinMut<Empty<T>>,     &mut Context ) -> Poll<Option<<Empty<T> as Stream>::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.