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

#[must_use = "streams do nothing unless polled"]

pub struct Zip<St1: Stream, St2: Stream> { /* fields omitted */ }

An adapter for merging the output of two streams.

The merged stream produces items from one or both of the underlying streams as they become available.

Trait Implementations

impl<St1: Debug + Stream, St2: Debug + Stream> Debug for Zip<St1, St2> where
    St1::Item: Debug,
    St2::Item: Debug, 
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impl<St1: Stream + Unpin, St2: Stream + Unpin> Unpin for Zip<St1, St2>
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impl<St1, St2> Stream for Zip<St1, St2> where
    St1: Stream,
    St2: Stream, 
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type Item = (St1::Item, St2::Item)

Values yielded by the stream.

impl<St1, St2> FusedStream for Zip<St1, St2> where
    St1: Stream,
    St2: Stream, 
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Auto Trait Implementations

impl<St1, St2> Send for Zip<St1, St2> where
    St1: Send,
    St2: Send,
    <St1 as Stream>::Item: Send,
    <St2 as Stream>::Item: Send, 

impl<St1, St2> Sync for Zip<St1, St2> where
    St1: Sync,
    St2: Sync,
    <St1 as Stream>::Item: Sync,
    <St2 as Stream>::Item: Sync, 

Blanket Implementations

impl<T> StreamExt for T where
    T: Stream + ?Sized, 
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fn next(&mut self) -> Next<Self> where
    Self: Sized + Unpin, 
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Creates a future that resolves to the next item in the stream. Read more

fn into_future(self) -> StreamFuture<Self> where
    Self: Sized + Unpin, 
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Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is None. Read more

fn map<T, F>(self, f: F) -> Map<Self, F> where
    F: FnMut(Self::Item) -> T,
    Self: Sized, 
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Maps this stream's items to a different type, returning a new stream of the resulting type. Read more

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
    F: FnMut(&Self::Item) -> Fut,
    Fut: Future<Output = bool>,
    Self: Sized, 
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Filters the values produced by this stream according to the provided asynchronous predicate. Read more

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
    F: FnMut(Self::Item) -> Fut,
    Fut: Future<Output = Option<T>>,
    Self: Sized, 
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Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
    F: FnMut(Self::Item) -> Fut,
    Fut: Future,
    Self: Sized, 
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Computes from this stream's items new items of a different type using an asynchronous closure. Read more

fn collect<C: Default + Extend<Self::Item>>(self) -> Collect<Self, C> where
    Self: Sized, 
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Collect all of the values of this stream into a vector, returning a future representing the result of that computation. Read more

fn concat(self) -> Concat<Self> where
    Self: Sized,
    Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default, 
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Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> where
    F: FnMut(T, Self::Item) -> Fut,
    Fut: Future<Output = T>,
    Self: Sized, 
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Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

fn flatten(self) -> Flatten<Self> where
    Self::Item: Stream,
    Self: Sized, 
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Flattens a stream of streams into just one continuous stream. Read more

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
    F: FnMut(&Self::Item) -> Fut,
    Fut: Future<Output = bool>,
    Self: Sized, 
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Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
    F: FnMut(&Self::Item) -> Fut,
    Fut: Future<Output = bool>,
    Self: Sized, 
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Take elements from this stream while the provided asynchronous predicate resolves to true. Read more

fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
    F: FnMut(Self::Item) -> Fut,
    Fut: Future<Output = ()>,
    Self: Sized, 
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Runs this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

fn for_each_concurrent<Fut, F>(
    self,
    limit: impl Into<Option<usize>>,
    f: F
) -> ForEachConcurrent<Self, Fut, F> where
    F: FnMut(Self::Item) -> Fut,
    Fut: Future<Output = ()>,
    Self: Sized, 
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Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more

fn take(self, n: u64) -> Take<Self> where
    Self: Sized, 
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Creates a new stream of at most n items of the underlying stream. Read more

fn skip(self, n: u64) -> Skip<Self> where
    Self: Sized, 
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Creates a new stream which skips n items of the underlying stream. Read more

fn fuse(self) -> Fuse<Self> where
    Self: Sized, 
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Fuse a stream such that poll_next will never again be called once it has finished. This method can be used t turn any Stream into a FusedStream. Read more

ⓘImportant traits for &'_ mut I
fn by_ref(&mut self) -> &mut Self where
    Self: Sized, 
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Borrows a stream, rather than consuming it. Read more

fn catch_unwind(self) -> CatchUnwind<Self> where
    Self: Sized + UnwindSafe, 
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Catches unwinding panics while polling the stream. Read more

fn boxed(self) -> Pin<Box<Self>> where
    Self: Sized, 
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Wrap the stream in a Box, pinning it.

fn buffered(self, n: usize) -> Buffered<Self> where
    Self::Item: Future,
    Self: Sized, 
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An adaptor for creating a buffered list of pending futures. Read more

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
    Self::Item: Future,
    Self: Sized, 
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An adaptor for creating a buffered list of pending futures (unordered). Read more

fn zip<St>(self, other: St) -> Zip<Self, St> where
    St: Stream,
    Self: Sized, 
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An adapter for zipping two streams together. Read more

fn chain<St>(self, other: St) -> Chain<Self, St> where
    St: Stream<Item = Self::Item>,
    Self: Sized, 
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Adapter for chaining two stream. Read more

fn peekable(self) -> Peekable<Self> where
    Self: Sized, 
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Creates a new stream which exposes a peek method. Read more

fn chunks(self, capacity: usize) -> Chunks<Self> where
    Self: Sized, 
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An adaptor for chunking up items of the stream inside a vector. Read more

fn select<St>(self, other: St) -> Select<Self, St> where
    St: Stream<Item = Self::Item>,
    Self: Sized, 
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This combinator will attempt to pull items from both streams. Each stream will be polled in a round-robin fashion, and whenever a stream is ready to yield an item that item is yielded. Read more

fn forward<S>(self, sink: S) -> Forward<Self, S> where
    S: Sink + Unpin,
    Self: Stream<Item = Result<S::SinkItem, S::SinkError>> + Sized, 
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A future that completes after the given stream has been fully processed into the sink, including flushing. Read more

fn split(self) -> (SplitSink<Self>, SplitStream<Self>) where
    Self: Sink + Sized, 
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Splits this Stream + Sink object into separate Stream and Sink objects. Read more

fn inspect<F>(self, f: F) -> Inspect<Self, F> where
    F: FnMut(&Self::Item),
    Self: Sized, 
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Do something with each item of this stream, afterwards passing it on. Read more

ⓘImportant traits for Either<L, R>
fn left_stream<B>(self) -> Either<Self, B> where
    B: Stream<Item = Self::Item>,
    Self: Sized, 
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Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more

ⓘImportant traits for Either<L, R>
fn right_stream<B>(self) -> Either<B, Self> where
    B: Stream<Item = Self::Item>,
    Self: Sized, 
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Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

fn poll_next_unpin(&mut self, lw: &LocalWaker) -> Poll<Option<Self::Item>> where
    Self: Unpin + Sized, 
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A convenience method for calling Stream::poll_next on Unpin stream types. Read more

fn select_next_some(&mut self) -> SelectNextSome<Self> where
    Self: Sized + Unpin + FusedStream, 
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Returns a Future that resolves when the next item in this stream is ready. Read more

impl<T> From for T
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impl<T, U> Into for T where
    U: From<T>, 
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impl<T, U> TryFrom for T where
    T: From<U>, 
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type Error = !

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

The type returned in the event of a conversion error.

impl<T> Borrow for T where
    T: ?Sized, 
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impl<T> Any for T where
    T: 'static + ?Sized, 
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impl<T> BorrowMut for T where
    T: ?Sized, 
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impl<T, U> TryInto for T where
    U: TryFrom<T>, 
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type Error = <U as TryFrom<T>>::Error

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

The type returned in the event of a conversion error.