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add stream::peekable #366

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add stream::peekable #366

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8f2ed48
add stream::peekable
starsheriff Oct 17, 2019
4f4a017
Merge branch 'master' into stream_peekable
starsheriff Oct 17, 2019
a2dc753
change type of peeked
starsheriff Oct 17, 2019
d644eee
match next in poll_next
starsheriff Oct 21, 2019
0aef382
fix types and it compiles
starsheriff Oct 21, 2019
bd104c2
using next as peekable value
starsheriff Oct 29, 2019
dc04fde
tidy up
starsheriff Oct 29, 2019
f37916c
fix types
starsheriff Oct 29, 2019
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change type of peeked
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@starsheriff
starsheriff committed Oct 17, 2019
commit a2dc7530d02d5d1f05e453b4e8fcfe8b9ab8fe8c
9 changes: 8 additions & 1 deletion src/stream/stream/peekable.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,14 @@ use crate::task::{Context, Poll};
#[allow(missing_debug_implementations)]
pub struct Peekable<S: Stream> {
stream: S,
peeked: Option<Option<S::Item>>,
peeked: Option<PeekFuture<Option<S::Item>>>,
}

pub struct PeekFuture<'a, T: Unpin + ?Sized> {
pub(crate) stream: &'a T,
}

impl<T: Stream + Unpin + ?Sized> Future for PeekFuture<'_, T> {
}


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