[+] Show hidden undocumented itemsfn next(&mut self) -> Next<Self> where
Self: Unpin,
[src][−]
Creates a future that resolves to the next item in the stream. Read more
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,
[src][−]
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,
[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>,
Self: Sized,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
Collect all of the values of this stream into a vector, returning a future representing the result of that computation. Read more
fn concat(self) -> Concat<Self> where
Self: Sized,
Self::Item: Extend<<Self::Item as IntoIterator>::Item> + IntoIterator + Default,
[src][−]
Concatenate all items of a stream into a single extendable destination, returning a future representing the end result. Read more
Important 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::Item) -> Fut,
Fut: Future<Output = T>, type Output = T;
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,
[src][−]
Execute an accumulating asynchronous computation over a stream, collecting all the values into one final result. Read more
fn flatten(self) -> Flatten<Self> where
Self::Item: Stream,
Self: Sized,
[src][−]
Flattens a stream of streams into just one continuous stream. Read more
fn skip_while<Fut, F>(self, f: F) -> SkipWhile<Self, Fut, F> where
F: FnMut(&Self::Item) -> Fut,
Fut: Future<Output = bool>,
Self: Sized,
[src][−]
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,
[src][−]
Take elements from this stream while the provided asynchronous predicate resolves to true
. Read more
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F> where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
Self: Sized,
[src][−]
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,
[src][−]
Runs this stream to completion, executing the provided asynchronous closure for each element on the stream concurrently as elements become available. Read more
fn take(self, n: u64) -> Take<Self> where
Self: Sized,
[src][−]
Creates a new stream of at most n
items of the underlying stream. Read more
fn skip(self, n: u64) -> Skip<Self> where
Self: Sized,
[src][−]
Creates a new stream which skips n
items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self> where
Self: Sized,
[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: Sized + UnwindSafe,
[src][−]
Catches unwinding panics while polling the stream. Read more
fn boxed<'a>(self) -> BoxStream<'a, Self::Item> where
Self: Sized + Send + 'a,
[src][−]
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> LocalBoxStream<'a, Self::Item> where
Self: Sized + 'a,
[src][−]
Wrap the stream in a Box, pinning it. Read more
fn buffered(self, n: usize) -> Buffered<Self> where
Self::Item: Future,
Self: Sized,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
fn peekable(self) -> Peekable<Self> where
Self: Sized,
[src][−]
Creates a new stream which exposes a peek
method. Read more
fn chunks(self, capacity: usize) -> Chunks<Self> where
Self: Sized,
[src][−]
An adaptor for chunking up items of the stream inside a vector. Read more
Important traits for Forward<St, Si>
impl<St, Si, Item, E> Future for Forward<St, Si> where
Si: Sink<Item, Error = E>,
St: Stream<Item = Result<Item, E>>, type Output = Result<(), E>;
fn forward<S>(self, sink: S) -> Forward<Self, S> where
S: Sink<Self::Ok>,
Self: TryStream<Error = S::Error> + Sized,
[src][−]
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,
[src][−]
Splits this Stream + Sink
object into separate Stream
and Sink
objects. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnMut(&Self::Item),
Self: Sized,
[src][−]
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>,
Self: Sized,
[src][−]
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>,
Self: Sized,
[src][−]
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][−]
fn select_next_some(&mut self) -> SelectNextSome<Self> where
Self: Unpin + FusedStream,
[src][−]
Returns a Future
that resolves when the next item in this stream is ready. Read more
[+] Show hidden undocumented itemsfn err_into<E>(self) -> ErrInto<Self, E> where
Self: Sized,
Self::Error: Into<E>,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
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,
[src][−]
Do something with the error value of this stream, afterwards passing it on. Read more
fn into_stream(self) -> IntoStream<Self> where
Self: Sized,
[src][−]
fn try_next(&mut self) -> TryNext<Self> where
Self: Unpin,
[src][−]
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
Important traits for TryForEach<St, Fut, F>
impl<St, Fut, F> Future for TryForEach<St, Fut, F> where
St: TryStream,
F: FnMut(St::Ok) -> Fut,
Fut: TryFuture<Ok = (), Error = St::Error>, type Output = Result<(), St::Error>;
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,
[src][−]
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,
[src][−]
Skip elements on this stream while the provided asynchronous predicate resolves to true
. Read more
Important traits for TryForEachConcurrent<St, Fut, F>
impl<St, Fut, F> Future for TryForEachConcurrent<St, Fut, F> where
St: TryStream,
F: FnMut(St::Ok) -> Fut,
Fut: Future<Output = Result<(), St::Error>>, type Output = Result<(), St::Error>;
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,
[src][−]
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,
[src][−]
Attempt to Collect all of the values of this stream into a vector, returning a future representing the result of that computation. 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,
[src][−]
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,
[src][−]
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>,
Self: Sized,
[src][−]
Flattens a stream of streams into just one continuous stream. Read more
Important 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::Ok) -> Fut,
Fut: TryFuture<Ok = T, Error = St::Error>, type Output = Result<T, St::Error>;
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,
[src][−]
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::Ok as IntoIterator>::Item> + IntoIterator + Default,
[src][−]
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,
[src][−]
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][−]
fn compat(self) -> Compat<Self> where
Self: Sized + Unpin,
[src][−]
Wraps a TryStream
into a stream compatible with libraries using futures 0.1 Stream
. Requires the compat
feature to be enabled. ``` use futures::future::{FutureExt, TryFutureExt}; # let (tx, rx) = futures::channel::oneshot::channel(); Read more
fn into_async_read(self) -> IntoAsyncRead<Self> where
Self: Sized + TryStreamExt<Error = Error> + Unpin,
Self::Ok: AsRef<[u8]>,
[src][−]
Adapter that converts this stream into an AsyncRead
. Read more