Struct futures_util::stream::Empty

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

Stream for the empty function.

Trait Implementations

impl<T> Clone for Empty<T>

fn clone(&self) -> Self

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: Debug> Debug for Empty<T>

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

Formats the value using the given formatter.

impl<T> FusedStream for Empty<T>

fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

impl<T> Stream for Empty<T>

type Item = T

Values yielded by the stream.

fn poll_next(
    self: Pin<&mut Self>,
    _: &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<T> Unpin for Empty<T>