Struct heim_common::prelude::stream::SkipWhile

#[must_use = "streams do nothing unless polled"]
pub struct SkipWhile<S, P, R> where
    R: IntoFuture,
    S: Stream,  { /* fields omitted */ }

A stream combinator which skips elements of a stream while a predicate holds.

This structure is produced by the Stream::skip_while method.

Methods

impl<S, P, R> SkipWhile<S, P, R> where
    R: IntoFuture,
    S: Stream, 

Important traits for &'_ mut R

impl<'_, R> Read for &'_ mut R where
    R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
    W: Write + ?Sized, 

pub fn get_ref(&self) -> &S

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

Important traits for &'_ mut R

impl<'_, R> Read for &'_ mut R where
    R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
    W: Write + ?Sized, 

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

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 into_inner(self) -> S

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<S, P, R> Sink for SkipWhile<S, P, R> where
    R: IntoFuture,
    S: Sink + Stream, 

type SinkItem = <S as Sink>::SinkItem

The type of value that the sink accepts.

type SinkError = <S as Sink>::SinkError

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

fn start_send(
    &mut self,
    item: <S as Sink>::SinkItem
) -> Result<AsyncSink<<S as Sink>::SinkItem>, <S as Sink>::SinkError>

Begin the process of sending a value to the sink.

fn poll_complete(&mut self) -> Result<Async<()>, <S as Sink>::SinkError>

Flush all output from this sink, if necessary.

fn close(&mut self) -> Result<Async<()>, <S as Sink>::SinkError>

A method to indicate that no more values will ever be pushed into this sink.

default fn wait(self) -> Wait<Self>

Creates a new object which will produce a synchronous sink.

default fn with<U, F, Fut>(self, f: F) -> With<Self, U, F, Fut> where
    F: FnMut(U) -> Fut,
    Fut: IntoFuture<Item = Self::SinkItem>,
    <Fut as IntoFuture>::Error: From<Self::SinkError>, 

Composes a function in front of the sink.

default fn with_flat_map<U, F, St>(self, f: F) -> WithFlatMap<Self, U, F, St> where
    F: FnMut(U) -> St,
    St: Stream<Item = Self::SinkItem, Error = Self::SinkError>, 

Composes a function in front of the sink.

default fn sink_map_err<F, E>(self, f: F) -> SinkMapErr<Self, F> where
    F: FnOnce(Self::SinkError) -> E, 

Transforms the error returned by the sink.

default fn sink_from_err<E>(self) -> SinkFromErr<Self, E> where
    E: From<Self::SinkError>, 

Map this sink's error to any error implementing From for this sink's Error, returning a new sink.

default fn buffer(self, amt: usize) -> Buffer<Self>

Adds a fixed-size buffer to the current sink.

default fn fanout<S>(self, other: S) -> Fanout<Self, S> where
    S: Sink<SinkItem = Self::SinkItem, SinkError = Self::SinkError>,
    Self::SinkItem: Clone, 

Fanout items to multiple sinks.

default fn flush(self) -> Flush<Self>

A future that completes when the sink has finished processing all pending requests.

default fn send(self, item: Self::SinkItem) -> Send<Self>

A future that completes after the given item has been fully processed into the sink, including flushing.

default fn send_all<S>(self, stream: S) -> SendAll<Self, S> where
    S: Stream<Item = Self::SinkItem>,
    Self::SinkError: From<<S as Stream>::Error>, 

A future that completes after the given stream has been fully processed into the sink, including flushing.

impl<S, P, R> Stream for SkipWhile<S, P, R> where
    P: FnMut(&<S as Stream>::Item) -> R,
    R: IntoFuture<Item = bool, Error = <S as Stream>::Error>,
    S: Stream, 

type Item = <S as Stream>::Item

The type of item this stream will yield on success.

type Error = <S as Stream>::Error

The type of error this stream may generate.

fn poll(
    &mut self
) -> Result<Async<Option<<S as Stream>::Item>>, <S as Stream>::Error>

Attempt to pull out the next value of this stream, returning None if the stream is finished.

Important traits for Wait<S>

impl<S> Iterator for Wait<S> where
    S: Stream,  type Item = Result<<S as Stream>::Item, <S as Stream>::Error>;

default fn wait(self) -> Wait<Self>

Creates an iterator which blocks the current thread until each item of this stream is resolved.

default fn into_future(self) -> StreamFuture<Self>

Converts this stream into a Future.

default fn map<U, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> U, 

Converts a stream of type T to a stream of type U.

default fn map_err<U, F>(self, f: F) -> MapErr<Self, F> where
    F: FnMut(Self::Error) -> U, 

Converts a stream of error type T to a stream of error type U.

default fn filter<F>(self, f: F) -> Filter<Self, F> where
    F: FnMut(&Self::Item) -> bool, 

Filters the values produced by this stream according to the provided predicate.

default fn filter_map<F, B>(self, f: F) -> FilterMap<Self, F> where
    F: FnMut(Self::Item) -> Option<B>, 

Filters the values produced by this stream while simultaneously mapping them to a different type.

default fn then<F, U>(self, f: F) -> Then<Self, F, U> where
    F: FnMut(Result<Self::Item, Self::Error>) -> U,
    U: IntoFuture, 

Chain on a computation for when a value is ready, passing the resulting item to the provided closure f.

default fn and_then<F, U>(self, f: F) -> AndThen<Self, F, U> where
    F: FnMut(Self::Item) -> U,
    U: IntoFuture<Error = Self::Error>, 

Chain on a computation for when a value is ready, passing the successful results to the provided closure f.

default fn or_else<F, U>(self, f: F) -> OrElse<Self, F, U> where
    F: FnMut(Self::Error) -> U,
    U: IntoFuture<Item = Self::Item>, 

Chain on a computation for when an error happens, passing the erroneous result to the provided closure f.

default fn collect(self) -> Collect<Self>

Collect all of the values of this stream into a vector, returning a future representing the result of that computation.

default fn concat2(self) -> Concat2<Self> where
    Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
    Self::Item: IntoIterator,
    Self::Item: Default, 

Concatenate all results of a stream into a single extendable destination, returning a future representing the end result.

default fn concat(self) -> Concat<Self> where
    Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
    Self::Item: IntoIterator, 

Deprecated since 0.1.14:

please use Stream::concat2 instead

Concatenate all results of a stream into a single extendable destination, returning a future representing the end result.

default fn fold<F, T, Fut>(self, init: T, f: F) -> Fold<Self, F, Fut, T> where
    F: FnMut(T, Self::Item) -> Fut,
    Fut: IntoFuture<Item = T>,
    Self::Error: From<<Fut as IntoFuture>::Error>, 

Execute an accumulating computation over a stream, collecting all the values into one final result.

default fn flatten(self) -> Flatten<Self> where
    Self::Item: Stream,
    <Self::Item as Stream>::Error: From<Self::Error>, 

Flattens a stream of streams into just one continuous stream.

default fn skip_while<P, R>(self, pred: P) -> SkipWhile<Self, P, R> where
    P: FnMut(&Self::Item) -> R,
    R: IntoFuture<Item = bool, Error = Self::Error>, 

Skip elements on this stream while the predicate provided resolves to true.

default fn take_while<P, R>(self, pred: P) -> TakeWhile<Self, P, R> where
    P: FnMut(&Self::Item) -> R,
    R: IntoFuture<Item = bool, Error = Self::Error>, 

Take elements from this stream while the predicate provided resolves to true.

default fn for_each<F, U>(self, f: F) -> ForEach<Self, F, U> where
    F: FnMut(Self::Item) -> U,
    U: IntoFuture<Item = (), Error = Self::Error>, 

Runs this stream to completion, executing the provided closure for each element on the stream.

default fn from_err<E>(self) -> FromErr<Self, E> where
    E: From<Self::Error>, 

Map this stream's error to any error implementing From for this stream's Error, returning a new stream.

default fn take(self, amt: u64) -> Take<Self>

Creates a new stream of at most amt items of the underlying stream.

default fn skip(self, amt: u64) -> Skip<Self>

Creates a new stream which skips amt items of the underlying stream.

default fn fuse(self) -> Fuse<Self>

Fuse a stream such that poll will never again be called once it has finished.

Important traits for &'_ mut R

impl<'_, R> Read for &'_ mut R where
    R: Read + ?Sized, impl<'_, W> Write for &'_ mut W where
    W: Write + ?Sized, 

default fn by_ref(&mut self) -> &mut Self

Borrows a stream, rather than consuming it.

default fn catch_unwind(self) -> CatchUnwind<Self> where
    Self: UnwindSafe, 

Catches unwinding panics while polling the stream.

default fn buffered(self, amt: usize) -> Buffered<Self> where
    Self::Item: IntoFuture,
    <Self::Item as IntoFuture>::Error == Self::Error, 

An adaptor for creating a buffered list of pending futures.

default fn buffer_unordered(self, amt: usize) -> BufferUnordered<Self> where
    Self::Item: IntoFuture,
    <Self::Item as IntoFuture>::Error == Self::Error, 

An adaptor for creating a buffered list of pending futures (unordered).

default fn merge<S>(self, other: S) -> Merge<Self, S> where
    S: Stream<Error = Self::Error>, 

Deprecated:

functionality provided by select now

An adapter for merging the output of two streams.

default fn zip<S>(self, other: S) -> Zip<Self, S> where
    S: Stream<Error = Self::Error>, 

An adapter for zipping two streams together.

default fn chain<S>(self, other: S) -> Chain<Self, S> where
    S: Stream<Item = Self::Item, Error = Self::Error>, 

Adapter for chaining two stream.

default fn peekable(self) -> Peekable<Self>

Creates a new stream which exposes a peek method.

default fn chunks(self, capacity: usize) -> Chunks<Self>

An adaptor for chunking up items of the stream inside a vector.

default fn select<S>(self, other: S) -> Select<Self, S> where
    S: Stream<Item = Self::Item, Error = Self::Error>, 

Creates a stream that selects the next element from either this stream or the provided one, whichever is ready first.

default fn forward<S>(self, sink: S) -> Forward<Self, S> where
    S: Sink<SinkItem = Self::Item>,
    Self::Error: From<<S as Sink>::SinkError>, 

A future that completes after the given stream has been fully processed into the sink, including flushing.

default fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where
    Self: Sink, 

Splits this Stream + Sink object into separate Stream and Sink objects.

default fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item), 

Do something with each item of this stream, afterwards passing it on.

default fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
    F: FnMut(&Self::Error), 

Do something with the error of this stream, afterwards passing it on.

impl<S, P, R> Debug for SkipWhile<S, P, R> where
    P: Debug,
    R: Debug + IntoFuture,
    S: Debug + Stream,
    <R as IntoFuture>::Future: Debug,
    <S as Stream>::Item: Debug, 

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.