Trait futures_concurrency::StreamExt[−][src]

pub trait StreamExt: Stream {
    fn merge<U>(self, other: U) -> Merge<Self, U>
    where
        Self: Sized,
        U: Stream<Item = Self::Item> + Sized,
    { ... }
}
Expand description

Extend Stream with concurrency methods.

Provided methods

Combines multiple streams into a single stream of all their outputs.

Items are yielded as soon as they’re received, and the stream continues yield until both streams have been exhausted. The output ordering between streams is not guaranteed.

Examples
use futures_lite::prelude::*;
use futures_lite::future::block_on;
use futures_lite::stream;
use futures_concurrency::prelude::*;

fn main() {
    block_on(async {
        let a = stream::once(1u8);
        let b = stream::once(2u8);
        let c = stream::once(3u8);
        let s = a.merge(b).merge(c);

        let mut buf = vec![];
        s.for_each(|n| buf.push(n)).await;
        buf.sort_unstable();
        assert_eq!(&buf, &[1u8, 2u8, 3u8]);
    })
}

Implementors