[−][src]Enum futures::future::Either
pub enum Either<A, B> {
Left(A),
Right(B),
}Combines two different futures, streams, or sinks having the same associated types into a single type.
Variants
First branch of the type
Second branch of the type
Implementations
impl<A, B, T> Either<(T, A), (T, B)>[src][−]
pub fn factor_first(self) -> (T, Either<A, B>)[src][−]
Factor out a homogeneous type from an either of pairs.
Here, the homogeneous type is the first element of the pairs.
impl<A, B, T> Either<(A, T), (B, T)>[src][−]
pub fn factor_second(self) -> (Either<A, B>, T)[src][−]
Factor out a homogeneous type from an either of pairs.
Here, the homogeneous type is the second element of the pairs.
impl<T> Either<T, T>[src][−]
pub fn into_inner(self) -> T[src][−]
Extract the value of an either over two equivalent types.
Trait Implementations
impl<A, B> AsyncBufRead for Either<A, B> where
A: AsyncBufRead,
B: AsyncBufRead, [src][+]
A: AsyncBufRead,
B: AsyncBufRead,
fn poll_fill_buf(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<&[u8], Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<&[u8], Error>>
Attempt to return the contents of the internal buffer, filling it with more data from the inner reader if it is empty. Read more
fn consume(self: Pin<&mut Either<A, B>>, amt: usize)[src][−]
impl<A, B> AsyncRead for Either<A, B> where
A: AsyncRead,
B: AsyncRead, [src][+]
A: AsyncRead,
B: AsyncRead,
fn poll_read(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
buf: &mut [u8]
) -> Poll<Result<usize, Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
buf: &mut [u8]
) -> Poll<Result<usize, Error>>
Attempt to read from the AsyncRead into buf. Read more
fn poll_read_vectored(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
bufs: &mut [IoSliceMut<'_>]
) -> Poll<Result<usize, Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
bufs: &mut [IoSliceMut<'_>]
) -> Poll<Result<usize, Error>>
Attempt to read from the AsyncRead into bufs using vectored
IO operations. Read more
impl<A, B> AsyncSeek for Either<A, B> where
A: AsyncSeek,
B: AsyncSeek, [src][+]
A: AsyncSeek,
B: AsyncSeek,
fn poll_seek(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
pos: SeekFrom
) -> Poll<Result<u64, Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
pos: SeekFrom
) -> Poll<Result<u64, Error>>
Attempt to seek to an offset, in bytes, in a stream. Read more
impl<A, B> AsyncWrite for Either<A, B> where
A: AsyncWrite,
B: AsyncWrite, [src][+]
A: AsyncWrite,
B: AsyncWrite,
fn poll_write(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
buf: &[u8]
) -> Poll<Result<usize, Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
buf: &[u8]
) -> Poll<Result<usize, Error>>
Attempt to write bytes from buf into the object. Read more
fn poll_write_vectored(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
bufs: &[IoSlice<'_>]
) -> Poll<Result<usize, Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>,
bufs: &[IoSlice<'_>]
) -> Poll<Result<usize, Error>>
Attempt to write bytes from bufs into the object using vectored
IO operations. Read more
fn poll_flush(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), Error>>
Attempt to flush the object, ensuring that any buffered data reach their destination. Read more
fn poll_close(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), Error>>
Attempt to close the object. Read more
impl<A, B> Clone for Either<A, B> where
A: Clone,
B: Clone, [src][+]
A: Clone,
B: Clone,
fn clone(&self) -> Either<A, B>ⓘ[src][−]
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src][−]
Performs copy-assignment from source. Read more
impl<A, B> Debug for Either<A, B> where
A: Debug,
B: Debug, [src][+]
A: Debug,
B: Debug,
fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>[src][−]
Formats the value using the given formatter. Read more
impl<A, B> FusedFuture for Either<A, B> where
A: FusedFuture,
B: FusedFuture<Output = <A as Future>::Output>, [src][+]
A: FusedFuture,
B: FusedFuture<Output = <A as Future>::Output>,
fn is_terminated(&self) -> bool[src][−]
Returns true if the underlying future should no longer be polled.
impl<A, B> FusedStream for Either<A, B> where
A: FusedStream,
B: FusedStream<Item = <A as Stream>::Item>, [src][+]
A: FusedStream,
B: FusedStream<Item = <A as Stream>::Item>,
fn is_terminated(&self) -> bool[src][−]
Returns true if the stream should no longer be polled.
impl<A, B> Future for Either<A, B> where
A: Future,
B: Future<Output = <A as Future>::Output>, [src][+]
A: Future,
B: Future<Output = <A as Future>::Output>,
type Output = <A as Future>::Output
The type of value produced on completion.
fn poll(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<<A as Future>::Output>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<<A as Future>::Output>
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
impl<A, B, Item> Sink<Item> for Either<A, B> where
A: Sink<Item>,
B: Sink<Item, Error = <A as Sink<Item>>::Error>, [src][+]
A: Sink<Item>,
B: Sink<Item, Error = <A as Sink<Item>>::Error>,
type Error = <A as Sink<Item>>::Error
The type of value produced by the sink when an error occurs.
fn poll_ready(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>
Attempts to prepare the Sink to receive a value. Read more
fn start_send(
self: Pin<&mut Either<A, B>>,
item: Item
) -> Result<(), <Either<A, B> as Sink<Item>>::Error>[src][−]
self: Pin<&mut Either<A, B>>,
item: Item
) -> Result<(), <Either<A, B> 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
fn poll_flush(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>
Flush any remaining output from this sink. Read more
fn poll_close(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Result<(), <Either<A, B> as Sink<Item>>::Error>>
Flush any remaining output and close this sink, if necessary. Read more
impl<A, B> Stream for Either<A, B> where
A: Stream,
B: Stream<Item = <A as Stream>::Item>, [src][+]
A: Stream,
B: Stream<Item = <A as Stream>::Item>,
type Item = <A as Stream>::Item
Values yielded by the stream.
fn poll_next(
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Option<<A as Stream>::Item>>[src][−]
self: Pin<&mut Either<A, B>>,
cx: &mut Context<'_>
) -> Poll<Option<<A 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
fn size_hint(&self) -> (usize, Option<usize>)[src][−]
Returns the bounds on the remaining length of the stream. Read more
impl<'pin, A, B> Unpin for Either<A, B> where
__Either<'pin, A, B>: Unpin, [src]
__Either<'pin, A, B>: Unpin,
impl<A, B> UnsafeUnpin for Either<A, B>[src]
Auto Trait Implementations
impl<A, B> RefUnwindSafe for Either<A, B> where
A: RefUnwindSafe,
B: RefUnwindSafe,
A: RefUnwindSafe,
B: RefUnwindSafe,
impl<A, B> Send for Either<A, B> where
A: Send,
B: Send,
A: Send,
B: Send,
impl<A, B> Sync for Either<A, B> where
A: Sync,
B: Sync,
A: Sync,
B: Sync,
impl<A, B> UnwindSafe for Either<A, B> where
A: UnwindSafe,
B: UnwindSafe,
A: UnwindSafe,
B: UnwindSafe,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src][+]
T: 'static + ?Sized,
fn type_id(&self) -> TypeId[src][−]
Gets the TypeId of self. Read more
impl<R> AsyncBufReadExt for R where
R: AsyncBufRead + ?Sized, [src][+]
R: AsyncBufRead + ?Sized,
fn read_until(
&'a mut self,
byte: u8,
buf: &'a mut Vec<u8>
) -> ReadUntil<'a, Self>ⓘ where
Self: Unpin, [src][−]
&'a mut self,
byte: u8,
buf: &'a mut Vec<u8>
) -> ReadUntil<'a, Self>ⓘ where
Self: Unpin,
Creates a future which will read all the bytes associated with this I/O
object into buf until the delimiter byte or EOF is reached.
This method is the async equivalent to BufRead::read_until. Read more
fn read_line(&'a mut self, buf: &'a mut String) -> ReadLine<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will read all the bytes associated with this I/O
object into buf until a newline (the 0xA byte) or EOF is reached,
This method is the async equivalent to BufRead::read_line. Read more
fn lines(self) -> Lines<Self>[src][−]
Returns a stream over the lines of this reader.
This method is the async equivalent to BufRead::lines. Read more
impl<R> AsyncReadExt for R where
R: AsyncRead + ?Sized, [src][+]
R: AsyncRead + ?Sized,
fn chain<R>(self, next: R) -> Chain<Self, R> where
R: AsyncRead, [src][−]
R: AsyncRead,
Creates an adaptor which will chain this stream with another. Read more
fn read(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Tries to read some bytes directly into the given buf in asynchronous
manner, returning a future type. Read more
fn read_vectored(
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectored<'a, Self>ⓘNotable traits for ReadVectored<'_, R>
impl<'_, R> Future for ReadVectored<'_, R> where
R: Unpin + AsyncRead + ?Sized, type Output = Result<usize, Error>; where
Self: Unpin, [src][−]
&'a mut self,
bufs: &'a mut [IoSliceMut<'a>]
) -> ReadVectored<'a, Self>ⓘ
Notable traits for ReadVectored<'_, R>
impl<'_, R> Future for ReadVectored<'_, R> where
R: Unpin + AsyncRead + ?Sized, type Output = Result<usize, Error>;Self: Unpin,
Creates a future which will read from the AsyncRead into bufs using vectored
IO operations. Read more
fn read_exact(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will read exactly enough bytes to fill buf,
returning an error if end of file (EOF) is hit sooner. Read more
fn read_to_end(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will read all the bytes from this AsyncRead. Read more
fn read_to_string(&'a mut self, buf: &'a mut String) -> ReadToString<'a, Self>ⓘNotable traits for ReadToString<'_, A>
impl<'_, A> Future for ReadToString<'_, A> where
A: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>; where
Self: Unpin, [src][−]
Notable traits for ReadToString<'_, A>
impl<'_, A> Future for ReadToString<'_, A> where
A: AsyncRead + Unpin + ?Sized, type Output = Result<usize, Error>;Self: Unpin,
Creates a future which will read all the bytes from this AsyncRead. Read more
fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>) where
Self: AsyncWrite, [src][−]
Self: AsyncWrite,
Helper method for splitting this read/write object into two halves. Read more
fn take(self, limit: u64) -> Take<Self>[src][−]
Creates an AsyncRead adapter which will read at most limit bytes
from the underlying reader. Read more
impl<S> AsyncSeekExt for S where
S: AsyncSeek + ?Sized, [src][+]
S: AsyncSeek + ?Sized,
fn seek(&mut self, pos: SeekFrom) -> Seek<'_, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will seek an IO object, and then yield the new position in the object and the object itself. Read more
impl<W> AsyncWriteExt for W where
W: AsyncWrite + ?Sized, [src][+]
W: AsyncWrite + ?Sized,
fn flush(&mut self) -> Flush<'_, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will entirely flush this AsyncWrite. Read more
fn close(&mut self) -> Close<'_, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will entirely close this AsyncWrite.
fn write(&'a mut self, buf: &'a [u8]) -> Write<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future which will write bytes from buf into the object. Read more
fn write_vectored(
&'a mut self,
bufs: &'a [IoSlice<'a>]
) -> WriteVectored<'a, Self>ⓘNotable traits for WriteVectored<'_, W>
impl<'_, W> Future for WriteVectored<'_, W> where
W: Unpin + AsyncWrite + ?Sized, type Output = Result<usize, Error>; where
Self: Unpin, [src][−]
&'a mut self,
bufs: &'a [IoSlice<'a>]
) -> WriteVectored<'a, Self>ⓘ
Notable traits for WriteVectored<'_, W>
impl<'_, W> Future for WriteVectored<'_, W> where
W: Unpin + AsyncWrite + ?Sized, type Output = Result<usize, Error>;Self: Unpin,
Creates a future which will write bytes from bufs into the object using vectored
IO operations. Read more
fn write_all(&'a mut self, buf: &'a [u8]) -> WriteAll<'a, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Write data into this object. Read more
fn into_sink<Item>(self) -> IntoSink<Self, Item> where
Item: AsRef<[u8]>, [src][−]
Item: AsRef<[u8]>,
Allow using an AsyncWrite as a Sink<Item: AsRef<[u8]>>. Read more
impl<T> Borrow<T> for T where
T: ?Sized, [src][+]
T: ?Sized,
fn borrow(&self) -> &Tⓘ[src][−]
Immutably borrows from an owned value. Read more
impl<T> BorrowMut<T> for T where
T: ?Sized, [src][+]
T: ?Sized,
fn borrow_mut(&mut self) -> &mut Tⓘ[src][−]
Mutably borrows from an owned value. Read more
impl<T> From<T> for T[src][+]
impl<T> FutureExt for T where
T: Future + ?Sized, [src][+]
T: Future + ?Sized,
fn map<U, F>(self, f: F) -> Map<Self, F>ⓘ where
F: FnOnce(Self::Output) -> U, [src][−]
F: FnOnce(Self::Output) -> U,
Map this future's output to a different type, returning a new future of the resulting type. Read more
fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>, [src][−]
Self::Output: Into<U>,
Map this future's output to a different type, returning a new future of the resulting type. Read more
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>ⓘ where
F: FnOnce(Self::Output) -> Fut,
Fut: Future, [src][−]
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Chain on a computation for when a future finished, passing the result of
the future to the provided closure f. Read more
fn left_future<B>(self) -> Either<Self, B>ⓘ where
B: Future<Output = Self::Output>, [src][−]
B: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the left-hand variant
of that Either. Read more
fn right_future<A>(self) -> Either<A, Self>ⓘ where
A: Future<Output = Self::Output>, [src][−]
A: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the right-hand variant
of that Either. Read more
fn into_stream(self) -> IntoStream<Self>[src][−]
Convert this future into a single element stream. Read more
fn flatten(self) -> Flatten<Self>ⓘ where
Self::Output: Future, [src][−]
Self::Output: Future,
Flatten the execution of this future when the output of this future is itself another future. Read more
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream, [src][−]
Self::Output: Stream,
Flatten the execution of this future when the successful result of this future is a stream. Read more
fn fuse(self) -> Fuse<Self>ⓘ[src][−]
Fuse a future such that poll will never again be called once it has
completed. This method can be used to turn any Future into a
FusedFuture. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F>ⓘ where
F: FnOnce(&Self::Output), [src][−]
F: FnOnce(&Self::Output),
Do something with the output of a future before passing it on. Read more
fn catch_unwind(self) -> CatchUnwind<Self>ⓘNotable traits for CatchUnwind<Fut>
impl<Fut> Future for CatchUnwind<Fut> where
Fut: Future + UnwindSafe, type Output = Result<<Fut as Future>::Output, Box<dyn Any + 'static + Send>>; where
Self: UnwindSafe, [src][−]
Notable traits for CatchUnwind<Fut>
impl<Fut> Future for CatchUnwind<Fut> where
Fut: Future + UnwindSafe, type Output = Result<<Fut as Future>::Output, Box<dyn Any + 'static + Send>>;Self: UnwindSafe,
Catches unwinding panics while polling the future. Read more
fn shared(self) -> Shared<Self>ⓘ where
Self::Output: Clone, [src][−]
Self::Output: Clone,
Create a cloneable handle to this future where all handles will resolve to the same result. Read more
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)[src][−]
Turn this future into a future that yields () on completion and sends
its output to another future on a separate task. Read more
fn boxed<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send>>ⓘ where
Self: Send + 'a, [src][−]
Self: Send + 'a,
Wrap the future in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Future<Output = Self::Output> + 'a>>ⓘ where
Self: 'a, [src][−]
Self: 'a,
Wrap the future in a Box, pinning it. Read more
fn unit_error(self) -> UnitError<Self>ⓘ[src][−]
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = ()>. Read more
fn never_error(self) -> NeverError<Self>ⓘNotable traits for NeverError<Fut>
impl<Fut> Future for NeverError<Fut> where
Map<Fut, OkFn<Infallible>>: Future, type Output = <Map<Fut, OkFn<Infallible>> as Future>::Output;[src][−]
Notable traits for NeverError<Fut>
impl<Fut> Future for NeverError<Fut> where
Map<Fut, OkFn<Infallible>>: Future, type Output = <Map<Fut, OkFn<Infallible>> as Future>::Output;Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = Never>. Read more
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin, [src][−]
Self: Unpin,
A convenience for calling Future::poll on Unpin future types.
fn now_or_never(self) -> Option<Self::Output>[src][−]
Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to Future::poll. Read more
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
E: From<Self::Error>,
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>, [src][−]
E: From<Self::Error>,
F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
Composes a function in front of the sink. Read more
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>>, [src][−]
F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Composes a function in front of the sink. Read more
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E, [src][−]
F: FnOnce(Self::Error) -> E,
Transforms the error returned by the sink.
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self::Error: Into<E>, [src][−]
Self::Error: Into<E>,
Map this sink's error to a different error type using the Into trait. Read more
fn buffer(self, capacity: usize) -> Buffer<Self, Item>[src][−]
Adds a fixed-size buffer to the current sink. Read more
fn close(&mut self) -> Close<'_, Self, Item>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Close the sink.
fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Item: Clone,
Si: Sink<Item, Error = Self::Error>, [src][−]
Item: Clone,
Si: Sink<Item, Error = Self::Error>,
Fanout items to multiple sinks. Read more
fn flush(&mut self) -> Flush<'_, Self, Item>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Flush the sink, processing all pending items. Read more
fn send(&mut self, item: Item) -> Send<'_, Self, Item>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
A future that completes after the given item has been fully processed into the sink, including flushing. Read more
fn send_all<St>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St>ⓘ where
Self: Unpin,
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin + ?Sized, [src][−]
Self: Unpin,
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin + ?Sized,
A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
fn left_sink<Si2>(self) -> Either<Self, Si2>ⓘ where
Si2: Sink<Item, Error = Self::Error>, [src][−]
Si2: Sink<Item, Error = Self::Error>,
Wrap this sink in an Either sink, making it the left-hand variant
of that Either. Read more
fn right_sink<Si1>(self) -> Either<Si1, Self>ⓘ where
Si1: Sink<Item, Error = Self::Error>, [src][−]
Si1: Sink<Item, Error = Self::Error>,
Wrap this stream in an Either stream, making it the right-hand variant
of that Either. Read more
fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin, [src][−]
&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
fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin, [src][−]
Self: Unpin,
A convenience method for calling Sink::start_send on Unpin
sink types. Read more
fn poll_flush_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin, [src][−]
&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
fn poll_close_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin, [src][−]
&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
impl<T> StreamExt for T where
T: Stream + ?Sized, [src][+]
T: Stream + ?Sized,
fn next(&mut self) -> Next<'_, Self>ⓘ where
Self: Unpin, [src][−]
Self: Unpin,
Creates a future that resolves to the next item in the stream. Read more
fn into_future(self) -> StreamFuture<Self>ⓘ where
Self: Unpin, [src][−]
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
fn map<T, F>(self, f: F) -> Map<Self, F> where
F: FnMut(Self::Item) -> T, [src][−]
F: FnMut(Self::Item) -> T,
Maps this stream's items to a different type, returning a new stream of the resulting type. Read more
fn enumerate(self) -> Enumerate<Self>[src][−]
Creates a stream which gives the current iteration count as well as the next value. Read more
fn filter<Fut, F>(self, f: F) -> Filter<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>, [src][−]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
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>>, [src][−]
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
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future, [src][−]
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
fn collect<C>(self) -> Collect<Self, C>ⓘ where
C: Default + Extend<Self::Item>, [src][−]
C: Default + Extend<Self::Item>,
Transforms a stream into a collection, returning a future representing the result of that computation. Read more
fn concat(self) -> Concat<Self>ⓘ where
Self::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default, [src][−]
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
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>, [src][−]
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
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream, [src][−]
Self::Item: Stream,
Flattens a stream of streams into just one continuous stream. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F> where
F: FnMut(Self::Item) -> U,
U: Stream, [src][−]
F: FnMut(Self::Item) -> U,
U: Stream,
Maps a stream like StreamExt::map but flattens nested Streams. Read more
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>>, [src][−]
F: FnMut(&mut S, Self::Item) -> Fut,
Fut: Future<Output = Option<B>>,
Combinator similar to StreamExt::fold that holds internal state
and produces a new 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>, [src][−]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
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>, [src][−]
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Take elements from this stream while the provided asynchronous predicate
resolves to true. Read more
fn take_until<Fut>(self, fut: Fut) -> TakeUntil<Self, Fut> where
Fut: Future, [src][−]
Fut: Future,
Take elements from this stream until the provided future resolves. Read more
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>ⓘ where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>, [src][−]
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
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 = ()>, [src][−]
self,
limit: impl Into<Option<usize>>,
f: F
) -> ForEachConcurrent<Self, Fut, F>ⓘ 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
fn take(self, n: usize) -> Take<Self>[src][−]
Creates a new stream of at most n items of the underlying stream. Read more
fn skip(self, n: usize) -> Skip<Self>[src][−]
Creates a new stream which skips n items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self>[src][−]
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
fn by_ref(&mut self) -> &mut Selfⓘ[src][−]
Borrows a stream, rather than consuming it. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe, [src][−]
Self: UnwindSafe,
Catches unwinding panics while polling the stream. Read more
fn boxed<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send>>ⓘ where
Self: Send + 'a, [src][−]
Self: Send + 'a,
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a>>ⓘ where
Self: 'a, [src][−]
Self: 'a,
Wrap the stream in a Box, pinning it. Read more
fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future, [src][−]
Self::Item: Future,
An adaptor for creating a buffered list of pending futures. Read more
fn buffer_unordered(self, n: usize) -> BufferUnordered<Self> where
Self::Item: Future, [src][−]
Self::Item: Future,
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, [src][−]
St: Stream,
An adapter for zipping two streams together. Read more
fn chain<St>(self, other: St) -> Chain<Self, St> where
St: Stream<Item = Self::Item>, [src][−]
St: Stream<Item = Self::Item>,
Adapter for chaining two streams. Read more
fn peekable(self) -> Peekable<Self>[src][−]
Creates a new stream which exposes a peek method. Read more
fn chunks(self, capacity: usize) -> Chunks<Self>[src][−]
An adaptor for chunking up items of the stream inside a vector. Read more
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>[src][−]
An adaptor for chunking up ready items of the stream inside a vector. Read more
fn forward<S>(self, sink: S) -> Forward<Self, S>ⓘ where
S: Sink<Self::Ok, Error = Self::Error>,
Self: TryStream, [src][−]
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
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>) where
Self: Sink<Item>, [src][−]
Self: Sink<Item>,
Splits this Stream + Sink object into separate Sink and Stream
objects. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item), [src][−]
F: FnMut(&Self::Item),
Do something with each item of this stream, afterwards passing it on. Read more
fn left_stream<B>(self) -> Either<Self, B>ⓘ where
B: Stream<Item = Self::Item>, [src][−]
B: Stream<Item = Self::Item>,
Wrap this stream in an Either stream, making it the left-hand variant
of that Either. Read more
fn right_stream<B>(self) -> Either<B, Self>ⓘ where
B: Stream<Item = Self::Item>, [src][−]
B: Stream<Item = Self::Item>,
Wrap this stream in an Either stream, making it the right-hand variant
of that Either. Read more
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> where
Self: Unpin, [src][−]
Self: Unpin,
A convenience method for calling Stream::poll_next on Unpin
stream types. Read more
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>ⓘNotable traits for SelectNextSome<'_, St>
impl<'_, St> Future for SelectNextSome<'_, St> where
St: Unpin + FusedStream + ?Sized, type Output = <St as Stream>::Item; where
Self: Unpin + FusedStream, [src][−]
Notable traits for SelectNextSome<'_, St>
impl<'_, St> Future for SelectNextSome<'_, St> where
St: Unpin + FusedStream + ?Sized, type Output = <St as Stream>::Item;Self: Unpin + FusedStream,
impl<T> ToOwned for T where
T: Clone, [src][+]
T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T[src][−]
Creates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)[src][−]
🔬 This is a nightly-only experimental API. (toowned_clone_into)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
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][−]
Performs the conversion.
impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized, [src][+]
F: Future<Output = 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
fn try_poll(
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>[src][−]
self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
Poll this TryFuture as if it were a Future. Read more
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized, [src][+]
Fut: TryFuture + ?Sized,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error, [src][−]
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
Flattens the execution of this future when the successful result of this
future is a Sink. Read more
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>ⓘ where
F: FnOnce(Self::Ok) -> T, [src][−]
F: FnOnce(Self::Ok) -> T,
Maps this future's success value to a different value. Read more
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T, [src][−]
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
Maps this future's success value to a different value, and permits for error handling resulting in the same type. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F>ⓘ where
F: FnOnce(Self::Error) -> E, [src][−]
F: FnOnce(Self::Error) -> E,
Maps this future's error value to a different value. Read more
fn err_into<E>(self) -> ErrInto<Self, E>ⓘ where
Self::Error: Into<E>, [src][−]
Self::Error: Into<E>,
fn ok_into<U>(self) -> OkInto<Self, U> where
Self::Ok: Into<U>, [src][−]
Self::Ok: Into<U>,
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>ⓘ where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>, [src][−]
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>ⓘ where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>, [src][−]
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>ⓘ where
F: FnOnce(&Self::Ok), [src][−]
F: FnOnce(&Self::Ok),
Do something with the success value of a future before passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>ⓘNotable traits for InspectErr<Fut, F>
impl<Fut, F> Future for InspectErr<Fut, F> where
Inspect<IntoFuture<Fut>, InspectErrFn<F>>: Future, type Output = <Inspect<IntoFuture<Fut>, InspectErrFn<F>> as Future>::Output; where
F: FnOnce(&Self::Error), [src][−]
Notable traits for InspectErr<Fut, F>
impl<Fut, F> Future for InspectErr<Fut, F> where
Inspect<IntoFuture<Fut>, InspectErrFn<F>>: Future, type Output = <Inspect<IntoFuture<Fut>, InspectErrFn<F>> as Future>::Output;F: FnOnce(&Self::Error),
Do something with the error value of a future before passing it on. Read more
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error, [src][−]
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is another future. Read more
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error, [src][−]
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is a stream. Read more
fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F>ⓘNotable traits for UnwrapOrElse<Fut, F>
impl<Fut, F> Future for UnwrapOrElse<Fut, F> where
Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future, type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output; where
F: FnOnce(Self::Error) -> Self::Ok, [src][−]
Notable traits for UnwrapOrElse<Fut, F>
impl<Fut, F> Future for UnwrapOrElse<Fut, F> where
Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future, type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output;F: FnOnce(Self::Error) -> Self::Ok,
Unwraps this future's ouput, producing a future with this future's
Ok type as its
Output type. Read more
fn into_future(self) -> IntoFuture<Self>ⓘNotable traits for IntoFuture<Fut>
impl<Fut> Future for IntoFuture<Fut> where
Fut: TryFuture, type Output = Result<<Fut as TryFuture>::Ok, <Fut as TryFuture>::Error>;[src][−]
Notable traits for IntoFuture<Fut>
impl<Fut> Future for IntoFuture<Fut> where
Fut: TryFuture, type Output = Result<<Fut as TryFuture>::Ok, <Fut as TryFuture>::Error>;fn try_poll_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin, [src][−]
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<Self::Ok, Self::Error>> where
Self: Unpin,
A convenience method for calling TryFuture::try_poll on Unpin
future types. Read more
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][−]
Performs the conversion.
impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized, [src][+]
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
fn try_poll_next(
self: Pin<&mut S>,
cx: &mut Context<'_>
) -> Poll<Option<Result<<S as TryStream>::Ok, <S as TryStream>::Error>>>[src][−]
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
impl<S> TryStreamExt for S where
S: TryStream + ?Sized, [src][+]
S: TryStream + ?Sized,
fn err_into<E>(self) -> ErrInto<Self, E> where
Self::Error: Into<E>, [src][−]
Self::Error: Into<E>,
Wraps the current stream in a new stream which converts the error type into the one provided. Read more
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnMut(Self::Ok) -> T, [src][−]
F: FnMut(Self::Ok) -> T,
Wraps the current stream in a new stream which maps the success value using the provided closure. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnMut(Self::Error) -> E, [src][−]
F: FnMut(Self::Error) -> E,
Wraps the current stream in a new stream which maps the error value using the provided closure. Read more
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>, [src][−]
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
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnMut(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>, [src][−]
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
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnMut(&Self::Ok), [src][−]
F: FnMut(&Self::Ok),
Do something with the success value of this stream, afterwards passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnMut(&Self::Error), [src][−]
F: FnMut(&Self::Error),
Do something with the error value of this stream, afterwards passing it on. Read more
fn into_stream(self) -> IntoStream<Self>[src][−]
fn try_next(&mut self) -> TryNext<'_, Self>ⓘ where
Self: Unpin, [src][−]
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
fn try_for_each<Fut, F>(self, f: F) -> TryForEach<Self, Fut, F>ⓘ where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = Self::Error>, [src][−]
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
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>, [src][−]
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
fn try_for_each_concurrent<Fut, F>(
self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F>ⓘ where
F: FnMut(Self::Ok) -> Fut,
Fut: Future<Output = Result<(), Self::Error>>, [src][−]
self,
limit: impl Into<Option<usize>>,
f: F
) -> TryForEachConcurrent<Self, Fut, F>ⓘ 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
fn try_collect<C>(self) -> TryCollect<Self, C>ⓘ where
C: Default + Extend<Self::Ok>, [src][−]
C: Default + Extend<Self::Ok>,
Attempt to transform a stream into a collection, returning a future representing the result of that computation. Read more
fn try_filter<Fut, F>(self, f: F) -> TryFilter<Self, Fut, F> where
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>, [src][−]
F: FnMut(&Self::Ok) -> Fut,
Fut: Future<Output = bool>,
Attempt to filter the values produced by this stream according to the provided asynchronous closure. Read more
fn try_filter_map<Fut, F, T>(self, f: F) -> TryFilterMap<Self, Fut, F> where
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>, [src][−]
F: FnMut(Self::Ok) -> Fut,
Fut: TryFuture<Ok = Option<T>, Error = Self::Error>,
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
fn try_flatten(self) -> TryFlatten<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>, [src][−]
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error: From<Self::Error>,
Flattens a stream of streams into just one continuous stream. Read more
fn try_fold<T, Fut, F>(self, init: T, f: F) -> TryFold<Self, Fut, T, F>ⓘ where
F: FnMut(T, Self::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = Self::Error>, [src][−]
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
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, [src][−]
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>;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
fn try_buffer_unordered(self, n: usize) -> TryBufferUnordered<Self> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error, [src][−]
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Attempt to execute several futures from a stream concurrently. Read more
fn try_poll_next_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Option<Result<Self::Ok, Self::Error>>> where
Self: Unpin, [src][−]
&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
fn into_async_read(self) -> IntoAsyncRead<Self> where
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>, [src][−]
Self: TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>,