Files
abomonation
abomonation_derive
ansi_term
async_trait
atty
bincode
bitflags
byteorder
bytes
cfg_if
chrono
clap
dirs
dirs_sys
erdos
fixedbitset
fnv
futures
futures_channel
futures_core
futures_executor
futures_io
futures_macro
futures_sink
futures_task
futures_util
async_await
future
io
lock
sink
stream
task
indexmap
iovec
lazy_static
libc
log
memchr
mio
net2
num_cpus
num_integer
num_traits
petgraph
pin_project_lite
pin_utils
proc_macro2
proc_macro_hack
proc_macro_nested
quote
rand
rand_chacha
rand_core
rand_hc
rand_isaac
rand_jitter
rand_os
rand_pcg
rand_xorshift
serde
serde_derive
sha1
slab
slog
slog_term
strsim
syn
synstructure
term
textwrap
thread_local
time
tokio
future
io
loom
macros
net
park
runtime
stream
sync
task
time
util
tokio_macros
tokio_serde
tokio_serde_bincode
tokio_util
unicode_width
unicode_xid
uuid
vec_map
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
use crate::stream::Stream;

use core::future::Future;
use core::pin::Pin;
use core::task::{Context, Poll};

/// Future for the [`all`](super::StreamExt::all) method.
#[derive(Debug)]
#[must_use = "futures do nothing unless you `.await` or poll them"]
pub struct AllFuture<'a, St: ?Sized, F> {
    stream: &'a mut St,
    f: F,
}

impl<'a, St: ?Sized, F> AllFuture<'a, St, F> {
    pub(super) fn new(stream: &'a mut St, f: F) -> Self {
        Self { stream, f }
    }
}

impl<St: ?Sized + Unpin, F> Unpin for AllFuture<'_, St, F> {}

impl<St, F> Future for AllFuture<'_, St, F>
where
    St: ?Sized + Stream + Unpin,
    F: FnMut(St::Item) -> bool,
{
    type Output = bool;

    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
        let next = futures_core::ready!(Pin::new(&mut self.stream).poll_next(cx));

        match next {
            Some(v) => {
                if !(&mut self.f)(v) {
                    Poll::Ready(false)
                } else {
                    cx.waker().wake_by_ref();
                    Poll::Pending
                }
            }
            None => Poll::Ready(true),
        }
    }
}