Struct futures_util::compat::Compat01As03

impl<T> Compat01As03<T>

pub fn new(object: T) -> Self

Wraps a futures 0.1 Future, Stream, AsyncRead, or AsyncWrite object in a futures 0.3-compatible wrapper.

pub fn get_ref(&self) -> &T

Get a reference to 0.1 Future, Stream, AsyncRead, or AsyncWrite object contained within.

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

Get a mutable reference to 0.1 Future, Stream, AsyncRead or AsyncWrite object contained within.

pub fn into_inner(self) -> T

Consume this wrapper to return the underlying 0.1 Future, Stream, AsyncRead, or AsyncWrite object.

Trait Implementations§

impl<R: AsyncRead01> AsyncRead for Compat01As03<R>

Available on crate feature io-compat only.

fn poll_read( self: Pin<&mut Self>, 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 Self>, 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<W: AsyncWrite01> AsyncWrite for Compat01As03<W>

Available on crate feature io-compat only.

fn poll_write( self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &[u8] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from buf into the object. Read more

fn poll_flush( self: Pin<&mut Self>, 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 Self>, cx: &mut Context<'_> ) -> Poll<Result<(), Error>>

Attempt to close the object. Read more

fn poll_write_vectored( self: Pin<&mut Self>, cx: &mut Context<'_>, bufs: &[IoSlice<'_>] ) -> Poll<Result<usize, Error>>

Attempt to write bytes from bufs into the object using vectored IO operations. Read more

impl<T: Debug> Debug for Compat01As03<T>

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

Formats the value using the given formatter. Read more

impl<Fut: Future01> Future for Compat01As03<Fut>

type Output = Result<<Fut as Future>::Item, <Fut as Future>::Error>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::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<St: Stream01> Stream for Compat01As03<St>

type Item = Result<<St as Stream>::Item, <St as Stream>::Error>

Values yielded by the stream.

fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_> ) -> Poll<Option<Self::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>)

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

impl<T> Unpin for Compat01As03<T>

Auto Trait Implementations§

impl<T> !UnwindSafe for Compat01As03<T>

Blanket Implementations§

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

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<R> AsyncReadExt for R
where R: AsyncRead + ?Sized,

fn chain<R>(self, next: R) -> Chain<Self, R>
where Self: Sized, R: AsyncRead,

Available on crate feature io only.

Creates an adaptor which will chain this stream with another. Read more

fn read<'a>(&'a mut self, buf: &'a mut [u8]) -> Read<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Tries to read some bytes directly into the given buf in asynchronous manner, returning a future type. Read more

fn read_vectored<'a>( &'a mut self, bufs: &'a mut [IoSliceMut<'a>] ) -> ReadVectored<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will read from the AsyncRead into bufs using vectored IO operations. Read more

fn read_exact<'a>(&'a mut self, buf: &'a mut [u8]) -> ReadExact<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

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>(&'a mut self, buf: &'a mut Vec<u8>) -> ReadToEnd<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will read all the bytes from this AsyncRead. Read more

fn read_to_string<'a>( &'a mut self, buf: &'a mut String ) -> ReadToString<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will read all the bytes from this AsyncRead. Read more

fn split(self) -> (ReadHalf<Self>, WriteHalf<Self>)
where Self: AsyncWrite + Sized,

Available on crate feature io only.

Helper method for splitting this read/write object into two halves. Read more

fn take(self, limit: u64) -> Take<Self>
where Self: Sized,

Available on crate feature io only.

Creates an AsyncRead adapter which will read at most limit bytes from the underlying reader. Read more

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

Available on crate features io and io-compat only.

Wraps an AsyncRead in a compatibility wrapper that allows it to be used as a futures 0.1 / tokio-io 0.1 AsyncRead. If the wrapped type implements AsyncWrite as well, the result will also implement the futures 0.1 / tokio 0.1 AsyncWrite trait. Read more

impl<W> AsyncWriteExt for W
where W: AsyncWrite + ?Sized,

fn flush(&mut self) -> Flush<'_, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will entirely flush this AsyncWrite. Read more

fn close(&mut self) -> Close<'_, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will entirely close this AsyncWrite.

fn write<'a>(&'a mut self, buf: &'a [u8]) -> Write<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will write bytes from buf into the object. Read more

fn write_vectored<'a>( &'a mut self, bufs: &'a [IoSlice<'a>] ) -> WriteVectored<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Creates a future which will write bytes from bufs into the object using vectored IO operations. Read more

fn write_all<'a>(&'a mut self, buf: &'a [u8]) -> WriteAll<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Write data into this object. Read more

fn write_all_vectored<'a>( &'a mut self, bufs: &'a mut [IoSlice<'a>] ) -> WriteAllVectored<'a, Self> ⓘ
where Self: Unpin,

Available on crate feature io only.

Attempts to write multiple buffers into this writer. Read more

fn compat_write(self) -> Compat<Self> ⓘ
where Self: Sized + Unpin,

Available on crate features io and io-compat only.

Wraps an AsyncWrite in a compatibility wrapper that allows it to be used as a futures 0.1 / tokio-io 0.1 AsyncWrite. Requires the io-compat feature to enable.

fn into_sink<Item: AsRef<[u8]>>(self) -> IntoSink<Self, Item>
where Self: Sized,

Available on crate features io and sink only.

Allow using an AsyncWrite as a Sink<Item: AsRef<[u8]>>. Read more

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

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> FutureExt for T
where T: Future + ?Sized,

fn map<U, F>(self, f: F) -> Map<Self, F> ⓘ
where F: FnOnce(Self::Output) -> U, Self: Sized,

Map this future’s output to a different type, returning a new future of the resulting type. Read more

fn map_into(self) -> MapInto<Self, U> ⓘ
where Self::Output: Into, Self: Sized,

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, Self: Sized,

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(self) -> Either<Self, B> ⓘ
where B: Future<Output = Self::Output>, Self: Sized,

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>, Self: Sized,

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

fn into_stream(self) -> IntoStream<Self>
where Self: Sized,

Convert this future into a single element stream. Read more

fn flatten(self) -> Flatten<Self> ⓘ
where Self::Output: Future, Self: Sized,

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, Self: Sized,

Flatten the execution of this future when the successful result of this future is a stream. Read more

fn fuse(self) -> Fuse<Self> ⓘ
where Self: Sized,

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), Self: Sized,

Do something with the output of a future before passing it on. Read more

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

Catches unwinding panics while polling the future. Read more

fn shared(self) -> Shared<Self> ⓘ
where Self: Sized, 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>)
where Self: Sized,

Available on crate feature channel only.

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) -> BoxFuture<'a, Self::Output>
where Self: Sized + Send + 'a,

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

fn boxed_local<'a>(self) -> LocalBoxFuture<'a, Self::Output>
where Self: Sized + 'a,

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

fn unit_error(self) -> UnitError<Self> ⓘ
where Self: Sized,

Turns a Future<Output = T> into a TryFuture<Ok = T, Error = ()>.

fn never_error(self) -> NeverError<Self> ⓘ
where Self: Sized,

Turns a Future<Output = T> into a TryFuture<Ok = T, Error = Never>.

fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output>
where Self: Unpin,

A convenience for calling Future::poll on Unpin future types.

fn now_or_never(self) -> Option<Self::Output>
where Self: Sized,

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 for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

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

impl<F> IntoFuture for F
where F: Future,

type Output = <F as Future>::Output

The output that the future will produce on completion.

type IntoFuture = F

Which kind of future are we turning this into?

fn into_future(self) -> <F as IntoFuture>::IntoFuture

Creates a future from a value. Read more

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

fn next(&mut self) -> Next<'_, Self> ⓘ
where Self: Unpin,

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

fn into_future(self) -> StreamFuture<Self> ⓘ
where Self: Sized + 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, Self: Sized,

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

fn enumerate(self) -> Enumerate<Self>
where Self: Sized,

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>, Self: Sized,

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

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

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

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

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

fn collect<C: Default + Extend<Self::Item>>(self) -> Collect<Self, C> ⓘ
where Self: Sized,

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

fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB> ⓘ
where FromA: Default + Extend<A>, FromB: Default + Extend, Self: Sized + Stream<Item = (A, B)>,

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

fn concat(self) -> Concat<Self> ⓘ
where Self: Sized, Self::Item: Extend<<<Self as Stream>::Item as IntoIterator>::Item> + IntoIterator + Default,

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

fn count(self) -> Count<Self> ⓘ
where Self: Sized,

Drives the stream to completion, counting the number of items. Read more

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

Repeats a stream endlessly. Read more

fn fold<T, Fut, F>(self, init: T, f: F) -> Fold<Self, Fut, T, F> ⓘ
where F: FnMut(T, Self::Item) -> Fut, Fut: Future<Output = T>, Self: Sized,

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

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

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

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

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

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

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

fn flatten_unordered( self, limit: impl Into<Option<usize>> ) -> FlattenUnordered<Self>
where Self::Item: Stream + Unpin, Self: Sized,

Flattens a stream of streams into just one continuous stream. Polls inner streams produced by the base stream concurrently. Read more

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

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

fn flat_map_unordered<U, F>( self, limit: impl Into<Option<usize>>, f: F ) -> FlatMapUnordered<Self, U, F>
where U: Stream + Unpin, F: FnMut(Self::Item) -> U, Self: Sized,

Maps a stream like StreamExt::map but flattens nested Streams and polls them concurrently, yielding items in any order, as they made available. 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>, Self: Sized,

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>, Self: Sized,

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

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

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, Self: Sized,

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 = ()>, Self: Sized,

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

fn for_each_concurrent<Fut, F>( self, limit: impl Into<Option<usize>>, f: F ) -> ForEachConcurrent<Self, Fut, F> ⓘ
where F: FnMut(Self::Item) -> Fut, Fut: Future<Output = ()>, Self: Sized,

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>
where Self: Sized,

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

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

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

fn fuse(self) -> Fuse<Self>
where Self: Sized,

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

Borrows a stream, rather than consuming it. Read more

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

Catches unwinding panics while polling the stream. Read more

fn boxed<'a>(self) -> BoxStream<'a, Self::Item>
where Self: Sized + Send + 'a,

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

fn boxed_local<'a>(self) -> LocalBoxStream<'a, Self::Item>
where Self: Sized + 'a,

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

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

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

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

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

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

An adapter for zipping two streams together. Read more

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

Adapter for chaining two streams. Read more

fn peekable(self) -> Peekable<Self>
where Self: Sized,

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

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

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

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

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 + Sized,

Available on crate feature sink only.

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> + Sized,

Available on crate feature sink only.

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), Self: Sized,

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

fn left_stream(self) -> Either<Self, B> ⓘ
where B: Stream<Item = Self::Item>, Self: Sized,

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

fn right_stream(self) -> Either<B, Self> ⓘ
where B: Stream<Item = Self::Item>, Self: Sized,

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,

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

fn select_next_some(&mut self) -> SelectNextSome<'_, Self> ⓘ
where Self: Unpin + FusedStream,

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

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

Performs the conversion.

impl<F, T, E> TryFuture for F
where 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>

Poll this TryFuture as if it were a Future. Read more

impl<Fut> TryFutureExt for Fut
where Fut: TryFuture + ?Sized,

fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok>
where Self::Ok: Sink<Item, Error = Self::Error>, Self: Sized,

Available on crate feature sink only.

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, Self: Sized,

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 F: FnOnce(Self::Ok) -> T, E: FnOnce(Self::Error) -> T, Self: Sized,

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, Self: Sized,

Maps this future’s error value to a different value. Read more

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

Maps this future’s Error to a new error type using the Into trait. Read more

fn ok_into(self) -> OkInto<Self, U> ⓘ
where Self: Sized, Self::Ok: Into,

Maps this future’s Ok to a new type using the Into trait.

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

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>, Self: Sized,

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), Self: Sized,

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> ⓘ
where F: FnOnce(&Self::Error), Self: Sized,

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<Error = Self::Error>, Self: Sized,

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<Error = Self::Error>, Self: Sized,

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> ⓘ
where Self: Sized, F: FnOnce(Self::Error) -> Self::Ok,

Unwraps this future’s output, producing a future with this future’s Ok type as its Output type. Read more

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

Available on crate feature compat only.

Wraps a TryFuture into a future compatible with libraries using futures 0.1 future definitions. Requires the compat feature to enable.

fn into_future(self) -> IntoFuture<Self> ⓘ
where Self: Sized,

Wraps a TryFuture into a type that implements Future. Read more

fn try_poll_unpin( &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.

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

type Error = >::Error

The type returned in the event of a conversion error.

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

Performs the conversion.

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

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

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

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

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>, Self: Sized,

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), Self: Sized,

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), Self: Sized,

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

fn into_stream(self) -> IntoStream<Self>
where Self: Sized,

Wraps a TryStream into a type that implements Stream Read more

fn try_next(&mut self) -> TryNext<'_, Self> ⓘ
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

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>, Self: Sized,

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>, Self: Sized,

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

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>, Self: Sized,

Take 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>>, Self: Sized,

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: Default + Extend<Self::Ok>>(self) -> TryCollect<Self, C> ⓘ
where Self: Sized,

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

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

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

fn try_ready_chunks(self, capacity: usize) -> TryReadyChunks<Self>
where Self: Sized,

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

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

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 Fut: TryFuture<Ok = Option<T>, Error = Self::Error>, F: FnMut(Self::Ok) -> Fut, Self: Sized,

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_unordered( self, limit: impl Into<Option<usize>> ) -> TryFlattenUnordered<Self>
where Self::Ok: TryStream + Unpin, <Self::Ok as TryStream>::Error: From<Self::Error>, Self: Sized,

Flattens a stream of streams into just one continuous stream. Produced streams will be polled concurrently and any errors will be passed through without looking at them. If the underlying base stream returns an error, it will be immediately propagated. Read more

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

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>, Self: Sized,

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> ⓘ
where Self: Sized, Self::Ok: Extend<<<Self as TryStream>::Ok as IntoIterator>::Item> + IntoIterator + 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<Error = Self::Error>, Self: Sized,

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

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

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,

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

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

Available on crate feature compat only.

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

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

Available on crate feature io only.

Adapter that converts this stream into an AsyncBufRead. Read more

fn try_all<Fut, F>(self, f: F) -> TryAll<Self, Fut, F> ⓘ
where Self: Sized, F: FnMut(Self::Ok) -> Fut, Fut: Future<Output = bool>,

Attempt to execute a predicate over an asynchronous stream and evaluate if all items satisfy the predicate. Exits early if an Err is encountered or if an Ok item is found that does not satisfy the predicate. Read more