Struct ipfs_embed::SyncQuery[−][src]

pub struct SyncQuery<P: StoreParams> { /* fields omitted */ }
Expand description

A bitswap sync query.

Trait Implementations

impl<P: StoreParams> Drop for SyncQuery<P>[src]

fn drop(&mut self)[src]

Executes the destructor for this type. Read more

impl<P: StoreParams> Future for SyncQuery<P>[src]

type Output = Result<()>

The type of value produced on completion.

fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>[src]

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<P: StoreParams> Stream for SyncQuery<P>[src]

type Item = SyncEvent

Values yielded by the stream.

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

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

Auto Trait Implementations

impl<P> !RefUnwindSafe for SyncQuery<P>

impl<P> Send for SyncQuery<P>

impl<P> Sync for SyncQuery<P>

impl<P> Unpin for SyncQuery<P>

impl<P> !UnwindSafe for SyncQuery<P>

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

pub fn borrow(&self) -> &T[src]

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

pub fn borrow_mut(&mut self) -> &mut T[src]

Mutably borrows from an owned value. Read more

impl<T> From<T> for T[src]

pub fn from(t: T) -> T[src]

Performs the conversion.

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, 

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>, 

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, 

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>, 

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>, 

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

fn into_stream(self) -> IntoStream<Self>

Convert this future into a single element stream. Read more

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

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

fn fuse(self) -> Fuse<Self>

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), 

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

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

Catches unwinding panics while polling the future. Read more

fn shared(self) -> Shared<Self> where
    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>)

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, Global>> where
    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, Global>> where
    Self: 'a, 

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

fn unit_error(self) -> UnitError<Self>

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

fn never_error(self) -> NeverError<Self>

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, 

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

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

Evaluates and consumes the future, returning the resulting output if the future is ready after the first call to Future::poll. Read more

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

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

A convenience for calling Future::poll() on !Unpin types.

fn or<F>(self, other: F) -> Or<Self, F> where
    F: Future<Output = Self::Output>, 

Returns the result of self or other future, preferring self if both are ready. Read more

fn race<F>(self, other: F) -> Race<Self, F> where
    F: Future<Output = Self::Output>, 

Returns the result of self or other future, with no preference if both are ready. Read more

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

Catches panics while polling the future. Read more

fn boxed<'a>(
    self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>> where
    Self: Send + 'a, 

Boxes the future and changes its type to dyn Future + Send + 'a. Read more

fn boxed_local<'a>(
    self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
    Self: 'a, 

Boxes the future and changes its type to dyn Future + 'a. Read more

impl<T> Instrument for T[src]

fn instrument(self, span: Span) -> Instrumented<Self>[src]

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>[src]

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
    U: From<T>, [src]

pub fn into(self) -> U[src]

Performs the conversion.

impl<F> IntoFuture for F where
    F: Future, [src]

type Output = <F as Future>::Output

🔬 This is a nightly-only experimental API. (into_future)

The output that the future will produce on completion.

type Future = F

🔬 This is a nightly-only experimental API. (into_future)

Which kind of future are we turning this into?

pub fn into_future(self) -> <F as IntoFuture>::Future[src]

🔬 This is a nightly-only experimental API. (into_future)

Creates a future from a value.

impl<T> References<RawCodec> for T

pub fn references<R, E>(
    _c: RawCodec,
    _r: &mut R,
    _set: &mut E
) -> Result<(), Error> where
    E: Extend<Cid<UInt<UInt<UInt<UInt<UInt<UInt<UInt<UTerm, B1>, B0>, B0>, B0>, B0>, B0>, B0>>>,
    R: Read, 

Scrape the references from an impl Read. Read more

impl<T> Same<T> for T

type Output = T

Should always be Self

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: 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, 

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

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>, 

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>>, 

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, 

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>, 

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
    Self: Stream<Item = (A, B)>,
    FromA: Default + Extend<A>,
    FromB: Default + Extend<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, 

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

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

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, 

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, 

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>>, 

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>, 

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>, 

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, 

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 = ()>, 

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 = ()>, 

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>

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

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>

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: UnwindSafe, 

Catches unwinding panics while polling the stream. Read more

fn boxed<'a>(
    self
) -> Pin<Box<dyn Stream<Item = Self::Item> + 'a + Send, Global>> where
    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, 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, 

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

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, 

An adapter for zipping two streams together. Read more

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

Adapter for chaining two streams. Read more

fn peekable(self) -> Peekable<Self>

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

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>

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
    Self: TryStream,
    S: Sink<Self::Ok, Error = Self::Error>, 

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>, 

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), 

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>, 

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>, 

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. Read more

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

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

Advances the stream and returns the next value. Read more

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

Creates a stream that yields its first n elements. Read more

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 step_by(self, step: usize) -> StepBy<Self>

Creates a stream that yields each stepth element. Read more

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: Clone + 'a, 

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: Copy + 'a, 

Creates an stream which copies all of its elements. Read more

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>

Creates a stream that gives the current element’s count as well as the next value. Read more

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), 

A combinator that does something with each element in the stream, passing the value on. Read more

fn last(self) -> LastFuture<Self, Self::Item>

Returns the last element of the stream. Read more

fn fuse(self) -> Fuse<Self>

Creates a stream which ends after the first None. Read more

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 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
    F: FnMut(&Self::Item) -> B,
    B: Ord, 

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
    F: FnMut(&Self::Item) -> B,
    B: Ord, 

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, 

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, 

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, 

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, 

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, 

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, 

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, 

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>, 

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, 

A combinator that applies a function to every element in a stream producing a single, final value. Read more

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, 

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>, 

A stream adaptor similar to fold that holds internal state and produces a new stream. Read more

fn skip_while<P>(self, predicate: P) -> SkipWhile<Self, P> where
    P: FnMut(&Self::Item) -> bool, 

Combinator that skips elements based on a predicate. Read more

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

Creates a combinator that skips the first n elements. 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>, 

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>, 

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, 

‘Zips up’ two streams into a single stream of pairs. Read more

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, 

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, 

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>, 

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>, 

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>, 

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>, 

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>, 

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>, 

Determines if the elements of this Stream are lexicographically less than those of another. Read more

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

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, 

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, 

Retrieves the next item in the stream. Read more

fn count(self) -> CountFuture<Self>

Counts the number of items in the stream. Read more

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
    F: FnMut(Self::Item) -> U,
    U: Stream, 

Maps items to streams and then concatenates them. Read more

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

Concatenates inner streams. Read more

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, 

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>, 

Filters and maps items of the stream using a closure. Read more

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

Takes only the first n items of the stream. Read more

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

Skips the first n items of the stream. Read more

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 step_by(self, step: usize) -> StepBy<Self>

Yields every stepth item. Read more

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: Clone + 'a, 

Clones all items. Read more

fn copied<'a, T>(self) -> Copied<Self> where
    Self: Stream<Item = &'a T>,
    T: Copy + 'a, 

Copies all items. Read more

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>, 

Collects all items in the fallible stream into a collection. Read more

fn partition<B, P>(self, predicate: P) -> PartitionFuture<Self, P, B> where
    P: FnMut(&Self::Item) -> bool,
    B: Default + Extend<Self::Item>, 

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, 

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>, 

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>, 

Maps items of the stream to new values using a state value and a closure. Read more

fn fuse(self) -> Fuse<Self>

Fuses the stream so that it stops yielding items after the first None. Read more

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

Repeats the stream from beginning to end, forever. Read more

fn enumerate(self) -> Enumerate<Self>

Enumerates items, mapping them to (index, item). Read more

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, 

Gets the nth item of the stream. Read more

fn last(self) -> LastFuture<Self>

Returns the last item in the stream. Read more

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>, 

Applies a closure to items in the stream and returns the first Some result. Read more

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, 

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, 

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), 

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>, 

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, 

Zips up two streams into a single stream of pairs. Read more

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

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>, 

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> + 'a + Send, Global>> where
    Self: Send + 'a, 

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, 

Boxes the stream and changes its type to dyn Stream + 'a. Read more

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

pub 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, 

type Ok = T

The type of successful values yielded by this future

type Error = E

The type of failures yielded by this future

pub 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>,
    <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, 

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, 

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, 

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>, 

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

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

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

fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
    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>, 

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), 

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), 

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, 

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, 

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
    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 into_future(self) -> IntoFuture<Self>

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. Read more

impl<F> TryFutureExt for F where
    F: TryFuture, 

fn timeout(self, dur: Duration) -> Timeout<Self> where
    Self::Error: From<Error>, 

Creates a new future which will take at most dur time to resolve from the point at which this method is called. Read more

fn timeout_at(self, at: Instant) -> Timeout<Self> where
    Self::Error: From<Error>, 

Creates a new future which will resolve no later than at specified. Read more

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

Performs the conversion.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>, 

pub fn vzip(self) -> V

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