Struct futures::prelude::stream::Fuse

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pub struct Fuse<St> { /* private fields */ }

Expand description

Stream for the fuse method.

Implementations

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impl<St> Fuse<St>

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pub fn is_done(&self) -> bool

Returns whether the underlying stream has finished or not.

If this method returns true, then all future calls to poll are guaranteed to return None. If this returns false, then the underlying stream is still in use.

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pub fn get_ref(&self) -> &St

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

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

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.

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pub fn get_pin_mut(self: Pin<&mut Fuse<St>>) -> Pin<&mut St>ⓘNotable traits for Pin`impl Future for Pin where P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;`

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.

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pub fn into_inner(self) -> St

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

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impl<St> Debug for Fuse<St> where
St: Debug,

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

Formats the value using the given formatter. Read more

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impl<S> FusedStream for Fuse<S> where
S: Stream,

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pub fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.

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impl<S, Item> Sink<Item> for Fuse<S> where
S: Stream + Sink<Item>,

type Error = <S as Sink<Item>>::Error

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

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pub fn poll_ready(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

Attempts to prepare the Sink to receive a value. Read more

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pub fn start_send(
self: Pin<&mut Fuse<S>>,
item: Item
) -> Result<(), <Fuse<S> as Sink<Item>>::Error>

Begin the process of sending a value to the sink. Each call to this function must be preceded by a successful call to poll_ready which returned Poll::Ready(Ok(())). Read more

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pub fn poll_flush(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

Flush any remaining output from this sink. Read more

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pub fn poll_close(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

Flush any remaining output and close this sink, if necessary. Read more

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impl<S> Stream for Fuse<S> where
S: Stream,

type Item = <S as Stream>::Item

Values yielded by the stream.

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pub fn poll_next(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Option<<S as Stream>::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more

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pub fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

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impl<'pin, St> Unpin for Fuse<St> where
Origin<'__pin, St>: Unpin,

Auto Trait Implementations

impl<St> RefUnwindSafe for Fuse<St> where
St: RefUnwindSafe,

impl<St> Send for Fuse<St> where
St: Send,

impl<St> Sync for Fuse<St> where
St: Sync,

impl<St> UnwindSafe for Fuse<St> where
St: UnwindSafe,

Blanket Implementations

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

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized,

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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>,

Composes a function in front of the sink. Read more

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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>>,

Composes a function in front of the sink. Read more

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

Transforms the error returned by the sink.

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fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>,

Map this sink’s error to a different error type using the Into trait. Read more

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fn buffer(self, capacity: usize) -> Buffer<Self, Item>

Adds a fixed-size buffer to the current sink. Read more

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fn close(&mut self) -> Close<'_, Self, Item>ⓘNotable traits for Close<'_, Si, Item>`impl<'_, Si, Item> Future for Close<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

Close the sink.

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fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Item: Clone,
Si: Sink<Item, Error = Self::Error>,

Fanout items to multiple sinks. Read more

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fn flush(&mut self) -> Flush<'_, Self, Item>ⓘNotable traits for Flush<'_, Si, Item>`impl<'_, Si, Item> Future for Flush<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

Flush the sink, processing all pending items. Read more

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fn send(&mut self, item: Item) -> Send<'_, Self, Item>ⓘNotable traits for Send<'_, Si, Item>`impl<'_, Si, Item> Future for Send<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

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

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fn feed(&mut self, item: Item) -> Feed<'_, Self, Item>ⓘNotable traits for Feed<'_, Si, Item>`impl<'_, Si, Item> Future for Feed<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

A future that completes after the given item has been received by the sink. Read more

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fn send_all<St>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St>ⓘNotable traits for SendAll<'_, Si, St>`impl<'_, Si, St, Ok, Error> Future for SendAll<'_, Si, St> where Si: Sink<Ok, Error = Error> + Unpin + ?Sized, St: Stream<Item = Result<Ok, Error>> + Unpin + ?Sized, type Output = Result<(), Error>;` where
 St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin + ?Sized,
 Self: Unpin,

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

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fn left_sink<Si2>(self) -> Either<Self, Si2>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
Si2: Sink<Item, Error = Self::Error>,

Wrap this sink in an Either sink, making it the left-hand variant of that Either. Read more

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fn right_sink<Si1>(self) -> Either<Si1, Self>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
Si1: Sink<Item, Error = Self::Error>,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

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fn compat(self) -> CompatSink<Self, Item> where
Self: Unpin,

Wraps a Sink into a sink compatible with libraries using futures 0.1 Sink. Requires the compat feature to be enabled. Read more

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fn poll_ready_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
 Self: Unpin,

A convenience method for calling Sink::poll_ready on Unpin sink types. Read more

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fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin,

A convenience method for calling Sink::start_send on Unpin sink types. Read more

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fn poll_flush_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
 Self: Unpin,

A convenience method for calling Sink::poll_flush on Unpin sink types. Read more

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fn poll_close_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
 Self: Unpin,

A convenience method for calling Sink::poll_close on Unpin sink types. Read more

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impl<T> StreamExt for T where
T: Stream + ?Sized,

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fn next(&mut self) -> Next<'_, Self>ⓘNotable traits for Next<'_, St>`impl<'_, St> Future for Next<'_, St> where St: Stream + Unpin + ?Sized, type Output = Option<<St as Stream>::Item>;` where
Self: Unpin,

Creates a future that resolves to the next item in the stream. Read more

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fn into_future(self) -> StreamFuture<Self>ⓘNotable traits for StreamFuture<St>`impl<St> Future for StreamFuture<St> where St: Stream + Unpin, type Output = (Option<<St as Stream>::Item>, St);` where
Self: Unpin,

Converts this stream into a future of (next_item, tail_of_stream). If the stream terminates, then the next item is None. Read more

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

Maps this stream’s items to a different type, returning a new stream of the resulting type. Read more

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fn enumerate(self) -> Enumerate<Self>

Creates a stream which gives the current iteration count as well as the next value. Read more

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fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

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

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fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

Filters the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

Computes from this stream’s items new items of a different type using an asynchronous closure. Read more

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fn collect<C>(self) -> Collect<Self, C>ⓘNotable traits for Collect<St, C>`impl<St, C> Future for Collect<St, C> where St: Stream, C: Default + Extend<<St as Stream>::Item>, type Output = C;` where
C: Default + Extend<Self::Item>,

Transforms a stream into a collection, returning a future representing the result of that computation. Read more

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fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>ⓘNotable traits for Unzip<St, FromA, FromB>`impl<St, A, B, FromA, FromB> Future for Unzip<St, FromA, FromB> where St: Stream<Item = (A, B)>, FromA: Default + Extend<A>, FromB: Default + Extend, type Output = (FromA, FromB);` where
 FromA: Default + Extend<A>,
 FromB: Default + Extend,
 Self: Stream<Item = (A, B)>,

Converts a stream of pairs into a future, which resolves to pair of containers. Read more

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fn concat(self) -> Concat<Self>ⓘNotable traits for Concat<St>`impl<St> Future for Concat<St> where St: Stream, <St as Stream>::Item: Extend<<<St as Stream>::Item as IntoIterator>::Item>, <St as Stream>::Item: IntoIterator, <St as Stream>::Item: Default, type Output = <St as Stream>::Item;` where
 Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
 Self::Item: IntoIterator,
 Self::Item: Default,

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

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fn cycle(self) -> Cycle<Self> where
Self: Clone,

Repeats a stream endlessly. Read more

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fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F>ⓘNotable traits for Fold<St, Fut, T, F>`impl<St, Fut, T, F> Future for Fold<St, Fut, T, F> where St: Stream, F: FnMut(T, <St as Stream>::Item) -> Fut, Fut: Future<Output = T>, type Output = T;` where
 F: FnMut(T, Self::Item) -> Fut,
 Fut: Future<Output = T>,

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

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fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more

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fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more

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fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

Flattens a stream of streams into just one continuous stream. Read more

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fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream,

Maps a stream like StreamExt::map but flattens nested Streams. Read more

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fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option>,

Combinator similar to StreamExt::fold that holds internal state and produces a new stream. Read more

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fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

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

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fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

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

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fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,

Take elements from this stream until the provided future resolves. Read more

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fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>ⓘNotable traits for ForEach<St, Fut, F>`impl<St, Fut, F> Future for ForEach<St, Fut, F> where St: Stream, F: FnMut(<St as Stream>::Item) -> Fut, Fut: Future<Output = ()>, type Output = ();` where
 F: FnMut(Self::Item) -> Fut,
 Fut: Future<Output = ()>,

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

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fn for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> ForEachConcurrent<Self, Fut, F>ⓘNotable traits for ForEachConcurrent<St, Fut, F>`impl<St, Fut, F> Future for ForEachConcurrent<St, Fut, F> where St: Stream, F: FnMut(<St as Stream>::Item) -> Fut, Fut: Future<Output = ()>, type Output = ();` where
 F: FnMut(Self::Item) -> Fut,
 Fut: Future<Output = ()>,

Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more

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fn take(self, n: usize) -> Take<Self>

Creates a new stream of at most n items of the underlying stream. Read more

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fn skip(self, n: usize) -> Skip<Self>

Creates a new stream which skips n items of the underlying stream. Read more

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fn fuse(self) -> Fuse<Self>

Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more

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

Borrows a stream, rather than consuming it. Read more

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

Catches unwinding panics while polling the stream. Read more

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fn boxed<'a>(
 self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>ⓘNotable traits for Pin`impl Future for Pin where P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;` where
 Self: 'a + Send,

Wrap the stream in a Box, pinning it. Read more

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fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘNotable traits for Pin`impl Future for Pin where P: DerefMut, ::Target: Future, type Output = <::Target as Future>::Output;` where
Self: 'a,

Wrap the stream in a Box, pinning it. Read more

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fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,

An adaptor for creating a buffered list of pending futures. Read more

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fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,

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

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fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,

An adapter for zipping two streams together. Read more

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

Adapter for chaining two streams. Read more

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fn peekable(self) -> Peekable<Self>

Creates a new stream which exposes a peek method. Read more

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

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

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fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>

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

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fn forward<S>(self, sink: S) -> Forward<Self, S>ⓘNotable traits for Forward<St, Si>`impl<St, Si> Future for Forward<St, Si> where St: TryStream, Forward<St, Si, <St as TryStream>::Ok>: Future, type Output = <Forward<St, Si, <St as TryStream>::Ok> as Future>::Output;` where
 S: Sink<Self::Ok, Error = Self::Error>,
 Self: TryStream,

A future that completes after the given stream has been fully processed into the sink and the sink has been flushed and closed. Read more

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

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

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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. Read more

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fn left_stream(self) -> Either<Self, B>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the left-hand variant of that Either. Read more

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fn right_stream(self) -> Either<B, Self>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
B: Stream<Item = Self::Item>,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more

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fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,

A convenience method for calling Stream::poll_next on Unpin stream types. Read more

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fn select_next_some(&mut self) -> SelectNextSome<'_, Self>ⓘNotable traits for SelectNextSome<'_, St>`impl<'_, St> Future for SelectNextSome<'_, St> where St: FusedStream + Unpin + ?Sized, type Output = <St as Stream>::Item;` where
Self: Unpin + FusedStream,

Returns a Future that resolves when the next item in this stream is ready. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

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pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

Poll this TryStream as if it were a Stream. Read more

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

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fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,

Wraps the current stream in a new stream which converts the error type into the one provided. Read more

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fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T,

Wraps the current stream in a new stream which maps the success value using the provided closure. Read more

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

Wraps the current stream in a new stream which maps the error value using the provided closure. Read more

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fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

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

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fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

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

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fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),

Do something with the success value of this stream, afterwards passing it on. Read more

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

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

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fn into_stream(self) -> IntoStream<Self>

Wraps a TryStream into a type that implements Stream Read more

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fn try_next(&mut self) -> TryNext<'_, Self>ⓘNotable traits for TryNext<'_, St>`impl<'_, St> Future for TryNext<'_, St> where St: TryStream + Unpin + ?Sized, type Output = Result<Option<<St as TryStream>::Ok>, <St as TryStream>::Error>;` where
Self: Unpin,

Creates a future that attempts to resolve the next item in the stream. If an error is encountered before the next item, the error is returned instead. Read more

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fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>ⓘNotable traits for TryForEach<St, Fut, F>`impl<St, Fut, F> Future for TryForEach<St, Fut, F> where St: TryStream, F: FnMut(<St as TryStream>::Ok) -> Fut, Fut: TryFuture<Ok = (), Error = <St as TryStream>::Error>, type Output = Result<(), <St as TryStream>::Error>;` where
 F: FnMut(Self::Ok) -> Fut,
 Fut: TryFuture<Ok = (), Error = Self::Error>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream. Read more

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fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

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

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fn try_take_while<Fut, F>(self, f: F) -> TryTakeWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,

Take elements on this stream while the provided asynchronous predicate resolves to true. Read more

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fn try_for_each_concurrent<Fut, F>(
 self,
 limit: impl Into<Option<usize>>,
 f: F
) -> TryForEachConcurrent<Self, Fut, F>ⓘNotable traits for TryForEachConcurrent<St, Fut, F>`impl<St, Fut, F> Future for TryForEachConcurrent<St, Fut, F> where St: TryStream, F: FnMut(<St as TryStream>::Ok) -> Fut, Fut: Future<Output = Result<(), <St as TryStream>::Error>>, type Output = Result<(), <St as TryStream>::Error>;` where
 F: FnMut(Self::Ok) -> Fut,
 Fut: Future<Output = Result<(), Self::Error>>,

Attempts to run this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available, exiting as soon as an error occurs. Read more

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fn try_collect<C>(self) -> TryCollect<Self, C>ⓘNotable traits for TryCollect<St, C>`impl<St, C> Future for TryCollect<St, C> where St: TryStream, C: Default + Extend<<St as TryStream>::Ok>, type Output = Result<C, <St as TryStream>::Error>;` where
C: Default + Extend<Self::Ok>,

Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more

source

fn try_chunks(self, capacity: usize) -> TryChunks<Self>

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

source

fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
Fut: Future<Output = bool>,
F: FnMut(&Self::Ok) -> Fut,

Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more

source

fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
F: FnMut(Self::Ok) -> Fut,

Attempt to filter the values produced by this stream while simultaneously mapping them to a different type according to the provided asynchronous closure. Read more

source

fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,

Flattens a stream of streams into just one continuous stream. Read more

source

fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>ⓘNotable traits for TryFold<St, Fut, T, F>`impl<St, Fut, T, F> Future for TryFold<St, Fut, T, F> where St: TryStream, F: FnMut(T, <St as TryStream>::Ok) -> Fut, Fut: TryFuture<Ok = T, Error = <St as TryStream>::Error>, type Output = Result<T, <St as TryStream>::Error>;` where
 F: FnMut(T, Self::Ok) -> Fut,
 Fut: TryFuture<Ok = T, Error = Self::Error>,

Attempt to execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more

source

fn try_concat(self) -> TryConcat<Self>ⓘNotable traits for TryConcat<St>`impl<St> Future for TryConcat<St> where St: TryStream, <St as TryStream>::Ok: Extend<<<St as TryStream>::Ok as IntoIterator>::Item>, <St as TryStream>::Ok: IntoIterator, <St as TryStream>::Ok: Default, type Output = Result<<St as TryStream>::Ok, <St as TryStream>::Error>;` where
 Self::Ok: Extend<<Self::Ok as IntoIterator>::Item>,
 Self::Ok: IntoIterator,
 Self::Ok: Default,

Attempt to concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more

source

fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

Attempt to execute several futures from a stream concurrently (unordered). Read more

source

fn try_buffered(self, n: usize) -> TryBuffered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,

Attempt to execute several futures from a stream concurrently. Read more

source

fn try_poll_next_unpin(
 &mut self,
 cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
 Self: Unpin,

A convenience method for calling TryStream::try_poll_next on Unpin stream types. Read more

source

fn compat(self) -> Compat<Self> where
Self: Unpin,

Wraps a TryStream into a stream compatible with libraries using futures 0.1 Stream. Requires the compat feature to be enabled. Read more

source

fn into_async_read(self) -> IntoAsyncRead<Self> where
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8 ]>,

Adapter that converts this stream into an AsyncRead. Read more

Struct futures::prelude::stream::Fuse

Implementations

impl<St> Fuse<St>

pub fn is_done(&self) -> bool

pub fn get_ref(&self) -> &St

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

pub fn get_pin_mut(self: Pin<&mut Fuse<St>>) -> Pin<&mut St>ⓘNotable traits for Pin<P>impl<P> Future for Pin<P> where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;

pub fn into_inner(self) -> St

Trait Implementations

impl<St> Debug for Fuse<St> where St: Debug,

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

impl<S> FusedStream for Fuse<S> where S: Stream,

pub fn is_terminated(&self) -> bool

impl<S, Item> Sink<Item> for Fuse<S> where S: Stream + Sink<Item>,

type Error = <S as Sink<Item>>::Error

pub fn poll_ready( self: Pin<&mut Fuse<S>>, cx: &mut Context<'_>) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

pub fn start_send( self: Pin<&mut Fuse<S>>, item: Item) -> Result<(), <Fuse<S> as Sink<Item>>::Error>

pub fn poll_flush( self: Pin<&mut Fuse<S>>, cx: &mut Context<'_>) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

pub fn poll_close( self: Pin<&mut Fuse<S>>, cx: &mut Context<'_>) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

impl<S> Stream for Fuse<S> where S: Stream,

type Item = <S as Stream>::Item

pub fn poll_next( self: Pin<&mut Fuse<S>>, cx: &mut Context<'_>) -> Poll<Option<<S as Stream>::Item>>

pub fn size_hint(&self) -> (usize, Option<usize>)

impl<'__pin, St> Unpin for Fuse<St> where __Origin<'__pin, St>: Unpin,

Auto Trait Implementations

impl<St> RefUnwindSafe for Fuse<St> where St: RefUnwindSafe,

impl<St> Send for Fuse<St> where St: Send,

impl<St> Sync for Fuse<St> where St: Sync,

impl<St> UnwindSafe for Fuse<St> where St: UnwindSafe,

Blanket Implementations

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

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T, Item> SinkExt<Item> for T where 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>,

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>>,

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

fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where Self::Error: Into<E>,

fn buffer(self, capacity: usize) -> Buffer<Self, Item>

fn close(&mut self) -> Close<'_, Self, Item>ⓘNotable traits for Close<'_, Si, Item>impl<'_, Si, Item> Future for Close<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>; where Self: Unpin,

fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where Item: Clone, Si: Sink<Item, Error = Self::Error>,

fn flush(&mut self) -> Flush<'_, Self, Item>ⓘNotable traits for Flush<'_, Si, Item>impl<'_, Si, Item> Future for Flush<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>; where Self: Unpin,

fn send(&mut self, item: Item) -> Send<'_, Self, Item>ⓘNotable traits for Send<'_, Si, Item>impl<'_, Si, Item> Future for Send<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>; where Self: Unpin,

fn feed(&mut self, item: Item) -> Feed<'_, Self, Item>ⓘNotable traits for Feed<'_, Si, Item>impl<'_, Si, Item> Future for Feed<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>; where Self: Unpin,

fn left_sink<Si2>(self) -> Either<Self, Si2>ⓘNotable traits for Either<A, B>impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output; where Si2: Sink<Item, Error = Self::Error>,

fn right_sink<Si1>(self) -> Either<Si1, Self>ⓘNotable traits for Either<A, B>impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output; where Si1: Sink<Item, Error = Self::Error>,

fn compat(self) -> CompatSink<Self, Item> where Self: Unpin,

fn poll_ready_unpin( &mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> where Self: Unpin,

fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where Self: Unpin,

fn poll_flush_unpin( &mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> where Self: Unpin,

fn poll_close_unpin( &mut self, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> where Self: Unpin,

impl<T> StreamExt for T where T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self>ⓘNotable traits for Next<'_, St>impl<'_, St> Future for Next<'_, St> where St: Stream + Unpin + ?Sized, type Output = Option<<St as Stream>::Item>; where Self: Unpin,

fn into_future(self) -> StreamFuture<Self>ⓘNotable traits for StreamFuture<St>impl<St> Future for StreamFuture<St> where St: Stream + Unpin, type Output = (Option<<St as Stream>::Item>, St); where Self: Unpin,

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

fn enumerate(self) -> Enumerate<Self>

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future,

fn collect<C>(self) -> Collect<Self, C>ⓘNotable traits for Collect<St, C>impl<St, C> Future for Collect<St, C> where St: Stream, C: Default + Extend<<St as Stream>::Item>, type Output = C; where C: Default + Extend<Self::Item>,

fn cycle(self) -> Cycle<Self> where Self: Clone,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self> where Self::Item: Stream,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where F: FnMut(Self::Item) -> U, U: Stream,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where F: FnMut(&mut S, Self::Item) -> Fut, Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where Fut: Future,

fn take(self, n: usize) -> Take<Self>

fn skip(self, n: usize) -> Skip<Self>

fn fuse(self) -> Fuse<Self>

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

pub fn get_pin_mut(self: Pin<&mut Fuse<St>>) -> Pin<&mut St>ⓘNotable traits for Pin<P>`impl<P> Future for Pin<P> where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;`

impl<St> Debug for Fuse<St> where
St: Debug,

impl<S> FusedStream for Fuse<S> where
S: Stream,

impl<S, Item> Sink<Item> for Fuse<S> where
S: Stream + Sink<Item>,

pub fn poll_ready(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

pub fn start_send(
self: Pin<&mut Fuse<S>>,
item: Item
) -> Result<(), <Fuse<S> as Sink<Item>>::Error>

pub fn poll_flush(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

pub fn poll_close(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Fuse<S> as Sink<Item>>::Error>>

impl<S> Stream for Fuse<S> where
S: Stream,

pub fn poll_next(
self: Pin<&mut Fuse<S>>,
cx: &mut Context<'_>
) -> Poll<Option<<S as Stream>::Item>>

impl<'pin, St> Unpin for Fuse<St> where
Origin<'__pin, St>: Unpin,

impl<St> RefUnwindSafe for Fuse<St> where
St: RefUnwindSafe,

impl<St> Send for Fuse<St> where
St: Send,

impl<St> Sync for Fuse<St> where
St: Sync,

impl<St> UnwindSafe for Fuse<St> where
St: UnwindSafe,

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, Item> SinkExt<Item> for T where
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>,

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>>,

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

fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>,

fn close(&mut self) -> Close<'_, Self, Item>ⓘNotable traits for Close<'_, Si, Item>`impl<'_, Si, Item> Future for Close<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Item: Clone,
Si: Sink<Item, Error = Self::Error>,

fn flush(&mut self) -> Flush<'_, Self, Item>ⓘNotable traits for Flush<'_, Si, Item>`impl<'_, Si, Item> Future for Flush<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

fn send(&mut self, item: Item) -> Send<'_, Self, Item>ⓘNotable traits for Send<'_, Si, Item>`impl<'_, Si, Item> Future for Send<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

fn feed(&mut self, item: Item) -> Feed<'_, Self, Item>ⓘNotable traits for Feed<'_, Si, Item>`impl<'_, Si, Item> Future for Feed<'_, Si, Item> where Si: Sink<Item> + Unpin + ?Sized, type Output = Result<(), <Si as Sink<Item>>::Error>;` where
Self: Unpin,

fn left_sink<Si2>(self) -> Either<Self, Si2>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
Si2: Sink<Item, Error = Self::Error>,

fn right_sink<Si1>(self) -> Either<Si1, Self>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
Si1: Sink<Item, Error = Self::Error>,

fn compat(self) -> CompatSink<Self, Item> where
Self: Unpin,

fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,

fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin,

fn poll_flush_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,

fn poll_close_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,

impl<T> StreamExt for T where
T: Stream + ?Sized,

fn next(&mut self) -> Next<'_, Self>ⓘNotable traits for Next<'_, St>`impl<'_, St> Future for Next<'_, St> where St: Stream + Unpin + ?Sized, type Output = Option<<St as Stream>::Item>;` where
Self: Unpin,

fn into_future(self) -> StreamFuture<Self>ⓘNotable traits for StreamFuture<St>`impl<St> Future for StreamFuture<St> where St: Stream + Unpin, type Output = (Option<<St as Stream>::Item>, St);` where
Self: Unpin,

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

fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn filter_map<Fut, T, F>(self, f: F) -> FilterMap<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = Option<T>>,

fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future,

fn collect<C>(self) -> Collect<Self, C>ⓘNotable traits for Collect<St, C>`impl<St, C> Future for Collect<St, C> where St: Stream, C: Default + Extend<<St as Stream>::Item>, type Output = C;` where
C: Default + Extend<Self::Item>,

fn cycle(self) -> Cycle<Self> where
Self: Clone,

fn any<Fut, F>(self, f: F) -> Any<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn all<Fut, F>(self, f: F) -> All<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,

fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream,

fn scan<S, B, Fut, F>(self, initial_state: S, f: F) -> Scan<Self, S, Fut, F> where
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,

fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_while<Fut, F>(self, f: F) -> TakeWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,

fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future,

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

fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>ⓘNotable traits for Pin<P>`impl<P> Future for Pin<P> where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;` where
Self: 'a + Send,

fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>ⓘNotable traits for Pin<P>`impl<P> Future for Pin<P> where P: DerefMut, <P as Deref>::Target: Future, type Output = <<P as Deref>::Target as Future>::Output;` where
Self: 'a,

fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,

fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future,

fn zip<St>(self, other: St) -> Zip<Self, St> where
St: Stream,

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

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

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

fn left_stream<B>(self) -> Either<Self, B>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
B: Stream<Item = Self::Item>,

fn right_stream<B>(self) -> Either<B, Self>ⓘNotable traits for Either<A, B>`impl<A, B> Future for Either<A, B> where A: Future, B: Future<Output = <A as Future>::Output>, type Output = <A as Future>::Output;` where
B: Stream<Item = Self::Item>,

fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin,

fn select_next_some(&mut self) -> SelectNextSome<'_, Self>ⓘNotable traits for SelectNextSome<'_, St>`impl<'_, St> Future for SelectNextSome<'_, St> where St: FusedStream + Unpin + ?Sized, type Output = <St as Stream>::Item;` where
Self: Unpin + FusedStream,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

pub fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>

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

fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>,

fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T,

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

fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,

fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,

fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok),

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

fn try_next(&mut self) -> TryNext<'_, Self>ⓘNotable traits for TryNext<'_, St>`impl<'_, St> Future for TryNext<'_, St> where St: TryStream + Unpin + ?Sized, type Output = Result<Option<<St as TryStream>::Ok>, <St as TryStream>::Error>;` where
Self: Unpin,

fn try_skip_while<Fut, F>(self, f: F) -> TrySkipWhile<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: TryFuture<Ok = bool, Error = Self::Error>,