Struct futures_util::stream::Concat

#[must_use = "streams do nothing unless polled"]
pub struct Concat<S> where
    S: Stream,  { /* fields omitted */ }

A stream combinator to concatenate the results of a stream into the first yielded item.

This structure is produced by the Stream::concat method.

Trait Implementations

impl<S: Debug> Debug for Concat<S> where
    S: Stream,
    S::Item: Debug, 

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

Formats the value using the given formatter.

impl<S> Future for Concat<S> where
    S: Stream,
    S::Item: Extend<<<S as Stream>::Item as IntoIterator>::Item> + IntoIterator + Default, 

type Item = S::Item

A successful value

type Error = S::Error

An error

fn poll(&mut self, cx: &mut Context) -> Poll<Self::Item, Self::Error>

Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available.