[][src]Struct futures::stream::Scan

#[must_use = "streams do nothing unless polled"]pub struct Scan<St, S, Fut, F> where
    St: Stream
{ /* fields omitted */ }

Stream for the scan method.

Implementations

impl<B, St, S, Fut, F> Scan<St, S, Fut, F> where
    F: FnMut(&mut S, <St as Stream>::Item) -> Fut,
    Fut: Future<Output = Option<B>>,
    St: Stream
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pub fn get_ref(&self) -> &St

Important traits for &'_ mut F

impl<'_, F> Future for &'_ mut F where
    F: Unpin + Future + ?Sized
type Output = <F as Future>::Output;
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Acquires a reference to the underlying sink or stream that this combinator is pulling from.

pub fn get_mut(&mut self) -> &mut St

Important traits for &'_ mut F

impl<'_, F> Future for &'_ mut F where
    F: Unpin + Future + ?Sized
type Output = <F as Future>::Output;
[src]

Acquires a mutable reference to the underlying sink or stream that this combinator is pulling from.

Note that care must be taken to avoid tampering with the state of the sink or stream which may otherwise confuse this combinator.

pub fn get_pin_mut(self: Pin<&mut Scan<St, S, Fut, F>>) -> Pin<&mut St>

Important traits for Pin<P>

impl<P> Future for Pin<P> where
    P: Unpin + DerefMut,
    <P as Deref>::Target: Future
type Output = <<P as Deref>::Target as Future>::Output;
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Acquires a pinned mutable reference to the underlying sink or stream that this combinator is pulling from.

Note that care must be taken to avoid tampering with the state of the sink or stream which may otherwise confuse this combinator.

pub fn into_inner(self) -> St[src]

Consumes this combinator, returning the underlying sink or stream.

Note that this may discard intermediate state of this combinator, so care should be taken to avoid losing resources when this is called.

Trait Implementations

impl<St, S, Fut, F> Debug for Scan<St, S, Fut, F> where
    Fut: Debug,
    S: Debug,
    St: Stream + Debug,
    <St as Stream>::Item: Debug
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impl<B, St, S, Fut, F> FusedStream for Scan<St, S, Fut, F> where
    F: FnMut(&mut S, <St as Stream>::Item) -> Fut,
    Fut: Future<Output = Option<B>>,
    St: FusedStream
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impl<S, Fut, F, Item> Sink<Item> for Scan<S, S, Fut, F> where
    S: Stream + Sink<Item>, 
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type Error = <S as Sink<Item>>::Error

The type of value produced by the sink when an error occurs.

impl<B, St, S, Fut, F> Stream for Scan<St, S, Fut, F> where
    F: FnMut(&mut S, <St as Stream>::Item) -> Fut,
    Fut: Future<Output = Option<B>>,
    St: Stream
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type Item = B

Values yielded by the stream.

impl<'pin, St, S, Fut, F> Unpin for Scan<St, S, Fut, F> where
    St: Stream,
    __Scan<'pin, St, S, Fut, F>: Unpin
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impl<St, S, Fut, F> UnsafeUnpin for Scan<St, S, Fut, F> where
    St: Stream
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Auto Trait Implementations

impl<St, S, Fut, F> RefUnwindSafe for Scan<St, S, Fut, F> where
    F: RefUnwindSafe,
    Fut: RefUnwindSafe,
    S: RefUnwindSafe,
    St: RefUnwindSafe

impl<St, S, Fut, F> Send for Scan<St, S, Fut, F> where
    F: Send,
    Fut: Send,
    S: Send,
    St: Send

impl<St, S, Fut, F> Sync for Scan<St, S, Fut, F> where
    F: Sync,
    Fut: Sync,
    S: Sync,
    St: Sync

impl<St, S, Fut, F> UnwindSafe for Scan<St, S, Fut, F> where
    F: UnwindSafe,
    Fut: UnwindSafe,
    S: UnwindSafe,
    St: UnwindSafe

Blanket Implementations

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

impl<T, U> Into<U> for T where
    U: From<T>, 
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impl<T, Item> SinkExt<Item> for T where
    T: Sink<Item> + ?Sized
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impl<T> StreamExt for T where
    T: Stream + ?Sized
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impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
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type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<S, T, E> TryStream for S where
    S: Stream<Item = Result<T, E>> + ?Sized
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type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

impl<S> TryStreamExt for S where
    S: TryStream + ?Sized
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