pub struct Boxed<O> { /* private fields */ }
Expand description
A Boxed
transport is a Transport
whose Dial
, Listener
and ListenerUpgrade
futures are Box
ed and only the Output
and Error
types are captured in type variables.
Trait Implementations
sourceimpl<O> FusedStream for Boxed<O>
impl<O> FusedStream for Boxed<O>
sourcefn is_terminated(&self) -> bool
fn is_terminated(&self) -> bool
Returns true
if the stream should no longer be polled.
sourceimpl<O> Stream for Boxed<O>
impl<O> Stream for Boxed<O>
type Item = TransportEvent<Pin<Box<dyn Future<Output = Result<O, Error>> + Send + 'static, Global>>, Error>
type Item = TransportEvent<Pin<Box<dyn Future<Output = Result<O, Error>> + Send + 'static, Global>>, Error>
Values yielded by the stream.
sourceimpl<O> Transport for Boxed<O>
impl<O> Transport for Boxed<O>
sourcefn listen_on(
&mut self,
addr: Multiaddr
) -> Result<ListenerId, TransportError<<Boxed<O> as Transport>::Error>>
fn listen_on(
&mut self,
addr: Multiaddr
) -> Result<ListenerId, TransportError<<Boxed<O> as Transport>::Error>>
Listens on the given Multiaddr
for inbound connections.
sourcefn remove_listener(&mut self, id: ListenerId) -> bool
fn remove_listener(&mut self, id: ListenerId) -> bool
Remove a listener. Read more
sourcefn dial(
&mut self,
addr: Multiaddr
) -> Result<<Boxed<O> as Transport>::Dial, TransportError<<Boxed<O> as Transport>::Error>>
fn dial(
&mut self,
addr: Multiaddr
) -> Result<<Boxed<O> as Transport>::Dial, TransportError<<Boxed<O> as Transport>::Error>>
sourcefn dial_as_listener(
&mut self,
addr: Multiaddr
) -> Result<<Boxed<O> as Transport>::Dial, TransportError<<Boxed<O> as Transport>::Error>>
fn dial_as_listener(
&mut self,
addr: Multiaddr
) -> Result<<Boxed<O> as Transport>::Dial, TransportError<<Boxed<O> as Transport>::Error>>
As Transport::dial
but has the local node act as a listener on the outgoing connection. Read more
sourcefn address_translation(
&self,
server: &Multiaddr,
observed: &Multiaddr
) -> Option<Multiaddr>
fn address_translation(
&self,
server: &Multiaddr,
observed: &Multiaddr
) -> Option<Multiaddr>
Performs a transport-specific mapping of an address observed
by
a remote onto a local listen
address to yield an address for
the local node that may be reachable for other peers. Read more
sourcefn poll(
self: Pin<&mut Boxed<O>>,
cx: &mut Context<'_>
) -> Poll<TransportEvent<<Boxed<O> as Transport>::ListenerUpgrade, <Boxed<O> as Transport>::Error>>
fn poll(
self: Pin<&mut Boxed<O>>,
cx: &mut Context<'_>
) -> Poll<TransportEvent<<Boxed<O> as Transport>::ListenerUpgrade, <Boxed<O> as Transport>::Error>>
Poll for TransportEvent
s. Read more
sourcefn map<F, O>(self, f: F) -> Map<Self, F>where
F: FnOnce(Self::Output, ConnectedPoint) -> O,
fn map<F, O>(self, f: F) -> Map<Self, F>where
F: FnOnce(Self::Output, ConnectedPoint) -> O,
Applies a function on the connections created by the transport.
sourcefn map_err<F, E>(self, f: F) -> MapErr<Self, F>where
F: FnOnce(Self::Error) -> E,
fn map_err<F, E>(self, f: F) -> MapErr<Self, F>where
F: FnOnce(Self::Error) -> E,
Applies a function on the errors generated by the futures of the transport.
sourcefn or_transport<U>(self, other: U) -> OrTransport<Self, U>where
U: Transport,
<U as Transport>::Error: 'static,
fn or_transport<U>(self, other: U) -> OrTransport<Self, U>where
U: Transport,
<U as Transport>::Error: 'static,
Adds a fallback transport that is used when encountering errors while establishing inbound or outbound connections. Read more
sourcefn and_then<C, F, O>(self, f: C) -> AndThen<Self, C>where
C: FnOnce(Self::Output, ConnectedPoint) -> F,
F: TryFuture<Ok = O>,
<F as TryFuture>::Error: 'static,
<F as TryFuture>::Error: Error,
fn and_then<C, F, O>(self, f: C) -> AndThen<Self, C>where
C: FnOnce(Self::Output, ConnectedPoint) -> F,
F: TryFuture<Ok = O>,
<F as TryFuture>::Error: 'static,
<F as TryFuture>::Error: Error,
Applies a function producing an asynchronous result to every connection created by this transport. Read more
Auto Trait Implementations
impl<O> !RefUnwindSafe for Boxed<O>
impl<O> Send for Boxed<O>
impl<O> !Sync for Boxed<O>
impl<O> Unpin for Boxed<O>
impl<O> !UnwindSafe for Boxed<O>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<I> IntoStream for Iwhere
I: Stream,
impl<I> IntoStream for Iwhere
I: Stream,
type Item = <I as Stream>::Item
type Item = <I as Stream>::Item
The type of the elements being iterated over.
type IntoStream = I
type IntoStream = I
Which kind of stream are we turning this into?
fn into_stream(self) -> I
fn into_stream(self) -> I
Creates a stream from a value.
impl<T> StreamExt for Twhere
T: Stream + ?Sized,
impl<T> StreamExt for Twhere
T: Stream + ?Sized,
fn next(&mut self) -> Next<'_, Self>where
Self: Unpin,
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: Unpin,
fn into_future(self) -> StreamFuture<Self>where
Self: Unpin,
fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,
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
fn enumerate(self) -> Enumerate<Self>
fn enumerate(self) -> Enumerate<Self>
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>,
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
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 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
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,
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
fn collect<C>(self) -> Collect<Self, C>where
C: Default + Extend<Self::Item>,
fn collect<C>(self) -> Collect<Self, C>where
C: Default + Extend<Self::Item>,
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<B>,
Self: Stream<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> Unzip<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: 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::Item: Extend<<Self::Item as IntoIterator>::Item>,
Self::Item: IntoIterator,
Self::Item: Default,
fn concat(self) -> Concat<Self>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
fn count(self) -> Count<Self>
fn count(self) -> Count<Self>
Drives the stream to completion, counting the number of items. 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>,
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>,
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>,
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
fn all<Fut, F>(self, f: F) -> All<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>,
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,
fn flatten(self) -> Flatten<Self>where
Self::Item: Stream,
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,
Self::Item: Unpin,
fn flatten_unordered(
self,
limit: impl Into<Option<usize>>
) -> FlattenUnordered<Self>where
Self::Item: Stream,
Self::Item: Unpin,
Flattens a stream of streams into just one continuous stream. Polls inner streams concurrently. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
F: FnMut(Self::Item) -> U,
U: Stream,
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 Stream
s. 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,
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,
Maps a stream like [StreamExt::map
] but flattens nested Stream
s
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<B>>,
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>>,
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>,
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
fn take_while<Fut, F>(self, f: F) -> TakeWhile<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>,
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,
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
fn for_each<Fut, F>(self, f: F) -> ForEach<Self, Fut, F>where
F: FnMut(Self::Item) -> Fut,
Fut: Future<Output = ()>,
fn for_each<Fut, F>(self, f: F) -> ForEach<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. 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 = ()>,
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 = ()>,
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>
fn take(self, n: usize) -> Take<Self>
Creates a new stream of at most n
items of the underlying stream. Read more
fn skip(self, n: usize) -> Skip<Self>
fn skip(self, n: usize) -> Skip<Self>
Creates a new stream which skips n
items of the underlying stream. Read more
fn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
fn catch_unwind(self) -> CatchUnwind<Self>where
Self: UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self>where
Self: UnwindSafe,
Catches unwinding panics while polling the stream. Read more
fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where
Self: 'a + Send,
fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where
Self: 'a + Send,
Wrap the stream in a Box, pinning it. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where
Self: 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where
Self: 'a,
Wrap the stream in a Box, pinning it. Read more
fn buffered(self, n: usize) -> Buffered<Self>where
Self::Item: Future,
fn buffered(self, n: usize) -> Buffered<Self>where
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,
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
fn zip<St>(self, other: St) -> Zip<Self, St>where
St: Stream,
fn zip<St>(self, other: St) -> Zip<Self, St>where
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>,
fn chain<St>(self, other: St) -> Chain<Self, St>where
St: Stream<Item = Self::Item>,
Adapter for chaining two streams. Read more
fn chunks(self, capacity: usize) -> Chunks<Self>
fn chunks(self, capacity: usize) -> Chunks<Self>
An adaptor for chunking up items of the stream inside a vector. Read more
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
fn ready_chunks(self, capacity: usize) -> ReadyChunks<Self>
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,
fn forward<S>(self, sink: S) -> Forward<Self, S>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
fn split<Item>(self) -> (SplitSink<Self, Item>, SplitStream<Self>)where
Self: Sink<Item>,
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
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
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
fn left_stream<B>(self) -> Either<Self, B>where
B: Stream<Item = Self::Item>,
fn left_stream<B>(self) -> Either<Self, B>where
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>,
fn right_stream<B>(self) -> Either<B, Self>where
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,
fn poll_next_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
fn select_next_some(&mut self) -> SelectNextSome<'_, Self>where
Self: Unpin + FusedStream,
impl<T> StreamExt for Twhere
T: Stream + ?Sized,
impl<T> StreamExt for Twhere
T: Stream + ?Sized,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
Advances the stream and returns the next value. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
Creates a stream that yields elements based on a predicate. Read more
fn throttle(self, d: Duration) -> Throttle<Self>
fn throttle(self, d: Duration) -> Throttle<Self>
Limit the amount of items yielded per timeslice in a stream. Read more
fn step_by(self, step: usize) -> StepBy<Self>
fn step_by(self, step: usize) -> StepBy<Self>
Creates a stream that yields each step
th element. Read more
fn chain<U>(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,
Takes two streams and creates a new stream over both in sequence. Read more
fn cloned<'a, T>(self) -> Cloned<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Clone,
fn cloned<'a, T>(self) -> Cloned<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Clone,
Creates an stream which copies all of its elements. Read more
fn copied<'a, T>(self) -> Copied<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Copy,
fn copied<'a, T>(self) -> Copied<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Copy,
Creates an stream which copies all of its elements. Read more
fn cycle(self) -> Cycle<Self>where
Self: Clone,
fn cycle(self) -> Cycle<Self>where
Self: Clone,
Creates a stream that yields the provided values infinitely and in order. Read more
fn enumerate(self) -> Enumerate<Self>
fn enumerate(self) -> Enumerate<Self>
Creates a stream that gives the current element’s count as well as the next value. Read more
fn delay(self, dur: Duration) -> Delay<Self>
fn delay(self, dur: Duration) -> Delay<Self>
Creates a stream that is delayed before it starts yielding items. Read more
fn map<B, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> B,
fn map<B, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> B,
Takes a closure and creates a stream that calls that closure on every element of this stream. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
A combinator that does something with each element in the stream, passing the value on. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn filter<P>(self, predicate: P) -> Filter<Self, P>where
P: FnMut(&Self::Item) -> bool,
Creates a stream that uses a predicate to determine if an element should be yielded. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
U: IntoStream,
F: FnMut(Self::Item) -> U,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
U: IntoStream,
F: FnMut(Self::Item) -> U,
Creates an stream that works like map, but flattens nested structure. Read more
fn flatten(self) -> Flatten<Self>where
Self::Item: IntoStream,
fn flatten(self) -> Flatten<Self>where
Self::Item: IntoStream,
Creates an stream that flattens nested structure. Read more
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<B>,
fn filter_map<B, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<B>,
Both filters and maps a stream. Read more
fn min_by_key<B, F>(self, key_by: F) -> MinByKeyFuture<Self, Self::Item, F>where
B: Ord,
F: FnMut(&Self::Item) -> B,
fn min_by_key<B, F>(self, key_by: F) -> MinByKeyFuture<Self, Self::Item, F>where
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the minimum value with respect to the
specified key function. If several elements are equally minimum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn max_by_key<B, F>(self, key_by: F) -> MaxByKeyFuture<Self, Self::Item, F>where
B: Ord,
F: FnMut(&Self::Item) -> B,
fn max_by_key<B, F>(self, key_by: F) -> MaxByKeyFuture<Self, Self::Item, F>where
B: Ord,
F: FnMut(&Self::Item) -> B,
Returns the element that gives the maximum value with respect to the
specified key function. If several elements are equally maximum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn min_by<F>(self, compare: F) -> MinByFuture<Self, F, Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn min_by<F>(self, compare: F) -> MinByFuture<Self, F, Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the minimum value with respect to the
specified comparison function. If several elements are equally minimum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn max(self) -> MaxFuture<Self, Self::Item>where
Self::Item: Ord,
fn max(self) -> MaxFuture<Self, Self::Item>where
Self::Item: Ord,
Returns the element that gives the maximum value. If several elements are equally maximum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn min(self) -> MinFuture<Self, Self::Item>where
Self::Item: Ord,
fn min(self) -> MinFuture<Self, Self::Item>where
Self::Item: Ord,
Returns the element that gives the minimum value. If several elements are equally minimum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn max_by<F>(self, compare: F) -> MaxByFuture<Self, F, Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
fn max_by<F>(self, compare: F) -> MaxByFuture<Self, F, Self::Item>where
F: FnMut(&Self::Item, &Self::Item) -> Ordering,
Returns the element that gives the maximum value with respect to the
specified comparison function. If several elements are equally maximum,
the first element is returned. If the stream is empty, None
is returned. Read more
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
Returns the nth element of the stream. Read more
fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F, Self::Item>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,
fn all<F>(&mut self, f: F) -> AllFuture<'_, Self, F, Self::Item>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,
Tests if every element of the stream matches a predicate. Read more
fn find<P>(&mut self, p: P) -> FindFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,
fn find<P>(&mut self, p: P) -> FindFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,
Searches for an element in a stream that satisfies a predicate. Read more
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,
Applies function to the elements of stream and returns the first non-none result. Read more
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, F, B>where
F: FnMut(B, Self::Item) -> B,
fn fold<B, F>(self, init: B, f: F) -> FoldFuture<Self, F, B>where
F: FnMut(B, Self::Item) -> B,
A combinator that applies a function to every element in a stream producing a single, final value. Read more
fn partition<B, F>(self, f: F) -> PartitionFuture<Self, F, B>where
F: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>,
fn partition<B, F>(self, f: F) -> PartitionFuture<Self, F, B>where
F: FnMut(&Self::Item) -> bool,
B: Default + Extend<Self::Item>,
A combinator that applies a function to every element in a stream creating two collections from it. Read more
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>where
F: FnMut(Self::Item),
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>where
F: FnMut(Self::Item),
Call a closure on each element of the stream. Read more
fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F, Self::Item>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,
fn any<F>(&mut self, f: F) -> AnyFuture<'_, Self, F, Self::Item>where
Self: Unpin,
F: FnMut(Self::Item) -> bool,
Tests if any element of the stream matches a predicate. Read more
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
Combinator that skip
s elements based on a predicate. Read more
fn skip(self, n: usize) -> Skip<Self>
fn skip(self, n: usize) -> Skip<Self>
Creates a combinator that skips the first n
elements. Read more
fn timeout(self, dur: Duration) -> Timeout<Self>where
Self: Stream,
fn timeout(self, dur: Duration) -> Timeout<Self>where
Self: Stream,
Await a stream or times out after a duration of time. Read more
fn try_fold<B, F, T, E>(&mut self, init: T, f: F) -> TryFoldFuture<'_, Self, F, T>where
Self: Unpin,
F: FnMut(B, Self::Item) -> Result<T, E>,
fn try_fold<B, F, T, E>(&mut self, init: T, f: F) -> TryFoldFuture<'_, Self, F, T>where
Self: Unpin,
F: FnMut(B, Self::Item) -> Result<T, E>,
A combinator that applies a function as long as it returns successfully, producing a single, final value. Immediately returns the error when the function returns unsuccessfully. Read more
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
Applies a falliable function to each element in a stream, stopping at first error and returning it. Read more
fn zip<U>(self, other: U) -> Zip<Self, U>where
U: Stream,
fn zip<U>(self, other: U) -> Zip<Self, U>where
U: Stream,
‘Zips up’ two streams into a single stream of pairs. Read more
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
Converts an stream of pairs into a pair of containers. Read more
fn collect<'a, B>(self) -> Pin<Box<dyn Future<Output = B> + Send + 'a, Global>>where
Self: 'a + Send,
B: FromStream<Self::Item>,
Self::Item: Send,
fn collect<'a, B>(self) -> Pin<Box<dyn Future<Output = B> + Send + 'a, Global>>where
Self: 'a + Send,
B: FromStream<Self::Item>,
Self::Item: Send,
Transforms a stream into a collection. Read more
fn merge<U>(self, other: U) -> Merge<Self, U>where
U: Stream<Item = Self::Item>,
fn merge<U>(self, other: U) -> Merge<Self, U>where
U: Stream<Item = Self::Item>,
Combines multiple streams into a single stream of all their outputs. Read more
fn partial_cmp<S>(self, other: S) -> PartialCmpFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
fn partial_cmp<S>(self, other: S) -> PartialCmpFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Lexicographically compares the elements of this Stream
with those
of another. Read more
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
Searches for an element in a Stream that satisfies a predicate, returning its index. Read more
fn cmp<S>(self, other: S) -> CmpFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: Ord,
fn cmp<S>(self, other: S) -> CmpFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: Ord,
Lexicographically compares the elements of this Stream
with those
of another using ‘Ord’. Read more
fn ne<S>(self, other: S) -> NeFuture<Self, S>where
S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
fn ne<S>(self, other: S) -> NeFuture<Self, S>where
S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
not equal to those of another. Read more
fn ge<S>(self, other: S) -> GeFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
fn ge<S>(self, other: S) -> GeFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
greater than or equal to those of another. Read more
fn eq<S>(self, other: S) -> EqFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
fn eq<S>(self, other: S) -> EqFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialEq<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
equal to those of another. Read more
fn gt<S>(self, other: S) -> GtFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
fn gt<S>(self, other: S) -> GtFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
greater than those of another. Read more
fn le<S>(self, other: S) -> LeFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
fn le<S>(self, other: S) -> LeFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
less or equal to those of another. Read more
fn lt<S>(self, other: S) -> LtFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
fn lt<S>(self, other: S) -> LtFuture<Self, S>where
Self: Stream,
S: Stream,
Self::Item: PartialOrd<<S as Stream>::Item>,
Determines if the elements of this Stream
are lexicographically
less than those of another. Read more
impl<S> StreamExt for Swhere
S: Stream + ?Sized,
impl<S> StreamExt for Swhere
S: Stream + ?Sized,
fn poll_next(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
fn poll_next(&mut self, cx: &mut Context<'_>) -> Poll<Option<Self::Item>>where
Self: Unpin,
A convenience for calling [Stream::poll_next()
] on !
Unpin
types.
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
fn next(&mut self) -> NextFuture<'_, Self>where
Self: Unpin,
Retrieves the next item in the stream. Read more
fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>where
Self: Stream<Item = Result<T, E>> + Unpin,
fn try_next<T, E>(&mut self) -> TryNextFuture<'_, Self>where
Self: Stream<Item = Result<T, E>> + Unpin,
Retrieves the next item in the stream. Read more
fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,
fn map<T, F>(self, f: F) -> Map<Self, F>where
F: FnMut(Self::Item) -> T,
Maps items of the stream to new values using a closure. Read more
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
U: Stream,
F: FnMut(Self::Item) -> U,
fn flat_map<U, F>(self, f: F) -> FlatMap<Self, U, F>where
U: Stream,
F: FnMut(Self::Item) -> U,
Maps items to streams and then concatenates them. Read more
fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,
fn then<F, Fut>(self, f: F) -> Then<Self, F, Fut>where
F: FnMut(Self::Item) -> Fut,
Fut: Future,
Maps items of the stream to new values using an async closure. Read more
fn filter<P>(self, predicate: P) -> Filter<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn filter<P>(self, predicate: P) -> Filter<Self, P>where
P: FnMut(&Self::Item) -> bool,
Keeps items of the stream for which predicate
returns true
. Read more
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<T>,
fn filter_map<T, F>(self, f: F) -> FilterMap<Self, F>where
F: FnMut(Self::Item) -> Option<T>,
Filters and maps items of the stream using a closure. Read more
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn take_while<P>(self, predicate: P) -> TakeWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
Takes items while predicate
returns true
. Read more
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P>where
P: FnMut(&Self::Item) -> bool,
Skips items while predicate
returns true
. Read more
fn chain<U>(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,
fn chain<U>(self, other: U) -> Chain<Self, U>where
U: Stream<Item = Self::Item>,
Appends another stream to the end of this one. Read more
fn cloned<'a, T>(self) -> Cloned<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Clone,
fn cloned<'a, T>(self) -> Cloned<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Clone,
Clones all items. Read more
fn copied<'a, T>(self) -> Copied<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Copy,
fn copied<'a, T>(self) -> Copied<Self>where
Self: Stream<Item = &'a T>,
T: 'a + Copy,
Copies all items. Read more
fn collect<C>(self) -> CollectFuture<Self, C>where
C: Default + Extend<Self::Item>,
fn collect<C>(self) -> CollectFuture<Self, C>where
C: Default + Extend<Self::Item>,
Collects all items in the stream into a collection. Read more
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,
fn try_collect<T, E, C>(self) -> TryCollectFuture<Self, C>where
Self: Stream<Item = Result<T, E>>,
C: Default + Extend<T>,
Collects all items in the fallible stream into a collection. Read more
fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>where
B: Default + Extend<Self::Item>,
P: FnMut(&Self::Item) -> bool,
fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B>where
B: Default + Extend<Self::Item>,
P: FnMut(&Self::Item) -> bool,
Partitions items into those for which predicate
is true
and those for which it is
false
, and then collects them into two collections. Read more
fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>where
F: FnMut(T, Self::Item) -> T,
fn fold<T, F>(self, init: T, f: F) -> FoldFuture<Self, F, T>where
F: FnMut(T, Self::Item) -> T,
Accumulates a computation over the stream. Read more
fn try_fold<T, E, F, B>(&mut self, init: B, f: F) -> TryFoldFuture<'_, Self, F, B>where
Self: Stream<Item = Result<T, E>> + Unpin,
F: FnMut(B, T) -> Result<B, E>,
fn try_fold<T, E, F, B>(&mut self, init: B, f: F) -> TryFoldFuture<'_, Self, F, B>where
Self: Stream<Item = Result<T, E>> + Unpin,
F: FnMut(B, T) -> Result<B, E>,
Accumulates a fallible computation over the stream. Read more
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
F: FnMut(&mut St, Self::Item) -> Option<B>,
fn scan<St, B, F>(self, initial_state: St, f: F) -> Scan<Self, St, F>where
F: FnMut(&mut St, Self::Item) -> Option<B>,
Maps items of the stream to new values using a state value and a closure. Read more
fn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
fn cycle(self) -> Cycle<Self>where
Self: Clone,
fn cycle(self) -> Cycle<Self>where
Self: Clone,
Repeats the stream from beginning to end, forever. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
fn inspect<F>(self, f: F) -> Inspect<Self, F>where
F: FnMut(&Self::Item),
Calls a closure on each item and passes it on. Read more
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
fn nth(&mut self, n: usize) -> NthFuture<'_, Self>where
Self: Unpin,
Gets the n
th item of the stream. Read more
fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,
fn find<P>(&mut self, predicate: P) -> FindFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(&Self::Item) -> bool,
Finds the first item of the stream for which predicate
returns true
. Read more
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,
fn find_map<F, B>(&mut self, f: F) -> FindMapFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Option<B>,
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
fn position<P>(&mut self, predicate: P) -> PositionFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
Finds the index of the first item of the stream for which predicate
returns true
. Read more
fn all<P>(&mut self, predicate: P) -> AllFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
fn all<P>(&mut self, predicate: P) -> AllFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
Tests if predicate
returns true
for all items in the stream. Read more
fn any<P>(&mut self, predicate: P) -> AnyFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
fn any<P>(&mut self, predicate: P) -> AnyFuture<'_, Self, P>where
Self: Unpin,
P: FnMut(Self::Item) -> bool,
Tests if predicate
returns true
for any item in the stream. Read more
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>where
F: FnMut(Self::Item),
fn for_each<F>(self, f: F) -> ForEachFuture<Self, F>where
F: FnMut(Self::Item),
Calls a closure on each item of the stream. Read more
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
fn try_for_each<F, E>(&mut self, f: F) -> TryForEachFuture<'_, Self, F>where
Self: Unpin,
F: FnMut(Self::Item) -> Result<(), E>,
Calls a fallible closure on each item of the stream, stopping on first error. Read more
fn zip<U>(self, other: U) -> Zip<Self, U>where
U: Stream,
fn zip<U>(self, other: U) -> Zip<Self, U>where
U: Stream,
Zips up two streams into a single stream of pairs. Read more
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
fn unzip<A, B, FromA, FromB>(self) -> UnzipFuture<Self, FromA, FromB>where
FromA: Default + Extend<A>,
FromB: Default + Extend<B>,
Self: Stream<Item = (A, B)>,
Collects a stream of pairs into a pair of collections. Read more
fn or<S>(self, other: S) -> Or<Self, S>where
S: Stream<Item = Self::Item>,
fn or<S>(self, other: S) -> Or<Self, S>where
S: Stream<Item = Self::Item>,
Merges with other
stream, preferring items from self
whenever both streams are ready. Read more
fn race<S>(self, other: S) -> Race<Self, S>where
S: Stream<Item = Self::Item>,
fn race<S>(self, other: S) -> Race<Self, S>where
S: Stream<Item = Self::Item>,
Merges with other
stream, with no preference for either stream when both are ready. Read more
fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where
Self: 'a + Send,
fn boxed<'a>(
self
) -> Pin<Box<dyn Stream<Item = Self::Item> + Send + 'a, Global>>where
Self: 'a + Send,
Boxes the stream and changes its type to dyn Stream + Send + 'a
. Read more
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where
Self: 'a,
fn boxed_local<'a>(self) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a, Global>>where
Self: 'a,
Boxes the stream and changes its type to dyn Stream + 'a
. Read more