Struct futures_util::stream::Peek[−][src]

#[must_use = "futures do nothing unless polled"]pub struct Peek<'a, St: Stream> { /* fields omitted */ }
[−]

Future for the Peekable::peek() function from Peekable

Trait Implementations

impl<St> Debug for Peek<'_, St> where
    St: Stream + Debug,
    St::Item: Debug, [src][+]

impl<St: Stream> FusedFuture for Peek<'_, St>[src][+]

impl<'a, St> Future for Peek<'a, St> where
    St: Stream, [src][+]

type Output = Option<&'a St::Item>

The type of value produced on completion.

impl<'__pin, 'a, St: Stream> Unpin for Peek<'a, St> where
    __Origin<'__pin, 'a, St>: Unpin, [src]

Auto Trait Implementations

impl<'a, St> RefUnwindSafe for Peek<'a, St> where
    St: RefUnwindSafe,
    <St as Stream>::Item: RefUnwindSafe, 

impl<'a, St> Send for Peek<'a, St> where
    St: Send,
    <St as Stream>::Item: Send, 

impl<'a, St> Sync for Peek<'a, St> where
    St: Sync,
    <St as Stream>::Item: Sync, 

impl<'a, St> !UnwindSafe for Peek<'a, St>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> From<T> for T[src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<F> IntoFuture for F where
    F: Future, [src][+]

type Output = <F as Future>::Output

🔬 This is a nightly-only experimental API. (into_future)

The output that the future will produce on completion.

type Future = F

🔬 This is a nightly-only experimental API. (into_future)

Which kind of future are we turning this into?

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.