[−][src]Struct futures_util::stream::Scan
Stream for the scan method.
Methods
impl<B, St, S, Fut, F> Scan<St, S, Fut, F> where
St: Stream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>, [src]
St: Stream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>,
pub fn get_ref(&self) -> &St[src]
Acquires a reference to the underlying stream that this combinator is pulling from.
pub fn get_mut(&mut self) -> &mut St[src]
Acquires a mutable reference to the underlying stream that this combinator is pulling from.
Note that care must be taken to avoid tampering with the state of the stream which may otherwise confuse this combinator.
pub fn get_pin_mut(self: Pin<&mut Self>) -> Pin<&mut St>[src]
Acquires a pinned mutable reference to the underlying stream that this combinator is pulling from.
Note that care must be taken to avoid tampering with the state of the stream which may otherwise confuse this combinator.
pub fn into_inner(self) -> St[src]
Consumes this combinator, returning the underlying 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
St: Stream + Debug,
St::Item: Debug,
S: Debug,
Fut: Debug, [src]
St: Stream + Debug,
St::Item: Debug,
S: Debug,
Fut: Debug,
impl<B, St, S, Fut, F> FusedStream for Scan<St, S, Fut, F> where
St: FusedStream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>, [src]
St: FusedStream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>,
fn is_terminated(&self) -> bool[src]
impl<S, Fut, F, Item> Sink<Item> for Scan<S, S, Fut, F> where
S: Stream + Sink<Item>, [src]
S: Stream + Sink<Item>,
type Error = S::Error
The type of value produced by the sink when an error occurs.
fn poll_ready(
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>[src]
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>
fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error>[src]
fn poll_flush(
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>[src]
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>
fn poll_close(
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>[src]
self: Pin<&mut Self>,
cx: &mut Context
) -> Poll<Result<(), Self::Error>>
impl<B, St, S, Fut, F> Stream for Scan<St, S, Fut, F> where
St: Stream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>, [src]
St: Stream,
F: FnMut(&mut S, St::Item) -> Fut,
Fut: Future<Output = Option<B>>,
type Item = B
Values yielded by the stream.
fn poll_next(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Option<B>>[src]
fn size_hint(&self) -> (usize, Option<usize>)[src]
impl<St: Unpin + Stream, S, Fut: Unpin, F> Unpin for Scan<St, S, Fut, F>[src]
Auto Trait Implementations
impl<St, S, Fut, F> RefUnwindSafe for Scan<St, S, Fut, F> where
F: RefUnwindSafe,
Fut: RefUnwindSafe,
S: RefUnwindSafe,
St: RefUnwindSafe,
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,
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,
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,
F: UnwindSafe,
Fut: UnwindSafe,
S: UnwindSafe,
St: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized, [src]
T: Sink<Item> + ?Sized,
fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F> where
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
E: From<Self::Error>,
Self: Sized, [src]
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
E: From<Self::Error>,
Self: Sized,
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F> where
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Self: Sized, [src]
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Self: Sized,
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
Self: Sized, [src]
F: FnOnce(Self::Error) -> E,
Self: Sized,
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self: Sized,
Self::Error: Into<E>, [src]
Self: Sized,
Self::Error: Into<E>,
fn buffer(self, capacity: usize) -> Buffer<Self, Item> where
Self: Sized, [src]
Self: Sized,
fn close(&mut self) -> Close<Self, Item> where
Self: Unpin, [src]
Self: Unpin,
fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Self: Sized,
Item: Clone,
Si: Sink<Item, Error = Self::Error>, [src]
Self: Sized,
Item: Clone,
Si: Sink<Item, Error = Self::Error>,
fn flush(&mut self) -> Flush<Self, Item> where
Self: Unpin, [src]
Self: Unpin,
fn send(&mut self, item: Item) -> Send<Self, Item> where
Self: Unpin, [src]
Self: Unpin,
fn send_all<'a, St: ?Sized>(
&'a mut self,
stream: &'a mut St
) -> SendAll<'a, Self, St> where
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin,
Self: Unpin, [src]
&'a mut self,
stream: &'a mut St
) -> SendAll<'a, Self, St> where
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin,
Self: Unpin,
fn left_sink<Si2>(self) -> Either<Self, Si2> where
Si2: Sink<Item, Error = Self::Error>,
Self: Sized, [src]
Si2: Sink<Item, Error = Self::Error>,
Self: Sized,
fn right_sink<Si1>(self) -> Either<Si1, Self> where
Si1: Sink<Item, Error = Self::Error>,
Self: Sized, [src]
Si1: Sink<Item, Error = Self::Error>,
Self: Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized, [src]
S: Stream<Item = Result<T, E>> + ?Sized,