async_std/collections/vec_deque/
from_stream.rs

1use std::collections::VecDeque;
2use std::pin::Pin;
3
4use crate::prelude::*;
5use crate::stream::{self, FromStream, IntoStream};
6
7impl<T: Send> FromStream<T> for VecDeque<T> {
8    #[inline]
9    fn from_stream<'a, S: IntoStream<Item = T> + 'a>(
10        stream: S,
11    ) -> Pin<Box<dyn Future<Output = Self> + 'a + Send>> 
12    where
13        <S as IntoStream>::IntoStream: Send,
14    {
15        let stream = stream.into_stream();
16
17        Box::pin(async move {
18            let mut out = VecDeque::new();
19            stream::extend(&mut out, stream).await;
20            out
21        })
22    }
23}