pub struct Unfold<T, F, R> { /* private fields */ }
Expand description

Sink for the unfold function.

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impl<T, F, R> Debug for Unfold<T, F, R>where T: Debug, F: Debug, R: Debug,

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

Formats the value using the given formatter. Read more
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impl<T, F, R, Item, E> Sink<Item> for Unfold<T, F, R>where F: FnMut(T, Item) -> R, R: Future<Output = Result<T, E>>,

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type Error = E

The type of value produced by the sink when an error occurs.
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fn poll_ready( self: Pin<&mut Unfold<T, F, R>>, cx: &mut Context<'_> ) -> Poll<Result<(), <Unfold<T, F, R> as Sink<Item>>::Error>>

Attempts to prepare the Sink to receive a value. Read more
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fn start_send( self: Pin<&mut Unfold<T, F, R>>, item: Item ) -> Result<(), <Unfold<T, F, R> as Sink<Item>>::Error>

Begin the process of sending a value to the sink. Each call to this function must be preceded by a successful call to poll_ready which returned Poll::Ready(Ok(())). Read more
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fn poll_flush( self: Pin<&mut Unfold<T, F, R>>, cx: &mut Context<'_> ) -> Poll<Result<(), <Unfold<T, F, R> as Sink<Item>>::Error>>

Flush any remaining output from this sink. Read more
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fn poll_close( self: Pin<&mut Unfold<T, F, R>>, cx: &mut Context<'_> ) -> Poll<Result<(), <Unfold<T, F, R> as Sink<Item>>::Error>>

Flush any remaining output and close this sink, if necessary. Read more
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impl<'__pin, T, F, R> Unpin for Unfold<T, F, R>where __Origin<'__pin, T, F, R>: Unpin,

Auto Trait Implementations§

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impl<T, F, R> RefUnwindSafe for Unfold<T, F, R>where F: RefUnwindSafe, R: RefUnwindSafe, T: RefUnwindSafe,

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impl<T, F, R> Send for Unfold<T, F, R>where F: Send, R: Send, T: Send,

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impl<T, F, R> Sync for Unfold<T, F, R>where F: Sync, R: Sync, T: Sync,

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impl<T, F, R> UnwindSafe for Unfold<T, F, R>where F: UnwindSafe, R: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Any for Twhere T: Any,

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fn into_any(self: Box<T>) -> Box<dyn Any>

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fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

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fn type_name(&self) -> &'static str

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impl<T> AnySync for Twhere T: Any + Send + Sync,

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fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

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impl<T> ArchivePointee for T

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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impl<T> Borrow<T> for Twhere T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<F, W, T, D> Deserialize<With<T, W>, D> for Fwhere W: DeserializeWith<F, T, D>, D: Fallible + ?Sized, F: ?Sized,

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fn deserialize( &self, deserializer: &mut D ) -> Result<With<T, W>, <D as Fallible>::Error>

Deserializes using the given deserializer
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FutureExt for T

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fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for Twhere U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> Pointee for T

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type Metadata = ()

The type for metadata in pointers and references to Self.
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, Item> SinkExt<Item> for Twhere T: Sink<Item> + ?Sized,

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fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>where F: FnMut(U) -> Fut, Fut: Future<Output = Result<Item, E>>, E: From<Self::Error>, Self: Sized,

Composes a function in front of the sink. Read more
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fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F>where F: FnMut(U) -> St, St: Stream<Item = Result<Item, Self::Error>>, Self: Sized,

Composes a function in front of the sink. Read more
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fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>where F: FnOnce(Self::Error) -> E, Self: Sized,

Transforms the error returned by the sink.
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fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>where Self: Sized, Self::Error: Into<E>,

Map this sink’s error to a different error type using the Into trait. Read more
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fn buffer(self, capacity: usize) -> Buffer<Self, Item>where Self: Sized,

Adds a fixed-size buffer to the current sink. Read more
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fn close(&mut self) -> Close<'_, Self, Item> where Self: Unpin,

Close the sink.
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fn fanout<Si>(self, other: Si) -> Fanout<Self, Si>where Self: Sized, Item: Clone, Si: Sink<Item, Error = Self::Error>,

Fanout items to multiple sinks. Read more
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fn flush(&mut self) -> Flush<'_, Self, Item> where Self: Unpin,

Flush the sink, processing all pending items. Read more
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fn send(&mut self, item: Item) -> Send<'_, Self, Item> where Self: Unpin,

A future that completes after the given item has been fully processed into the sink, including flushing. Read more
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fn feed(&mut self, item: Item) -> Feed<'_, Self, Item> where Self: Unpin,

A future that completes after the given item has been received by the sink. Read more
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fn send_all<St, 'a>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> where St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin + ?Sized, Self: Unpin,

A future that completes after the given stream has been fully processed into the sink, including flushing. Read more
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fn left_sink<Si2>(self) -> Either<Self, Si2> where Si2: Sink<Item, Error = Self::Error>, Self: Sized,

Wrap this sink in an Either sink, making it the left-hand variant of that Either. Read more
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fn right_sink<Si1>(self) -> Either<Si1, Self> where Si1: Sink<Item, Error = Self::Error>, Self: Sized,

Wrap this stream in an Either stream, making it the right-hand variant of that Either. Read more
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fn poll_ready_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling Sink::poll_ready on Unpin sink types.
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fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error>where Self: Unpin,

A convenience method for calling Sink::start_send on Unpin sink types.
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fn poll_flush_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling Sink::poll_flush on Unpin sink types.
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fn poll_close_unpin( &mut self, cx: &mut Context<'_> ) -> Poll<Result<(), Self::Error>>where Self: Unpin,

A convenience method for calling Sink::poll_close on Unpin sink types.
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impl<Item, S> SinkRateLimitExt<Item, S> for Swhere S: Sink<Item>,

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fn ratelimit_sink<D, C>( self, limiter: &RateLimiter<NotKeyed, D, C> ) -> RatelimitedSink<'_, Item, S, D, C>where D: DirectStateStore, C: ReasonablyRealtime,

Limits the rate at which items can be put into the current sink.
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fn ratelimit_sink_with_jitter<D, C>( self, limiter: &RateLimiter<NotKeyed, D, C>, jitter: Jitter ) -> RatelimitedSink<'_, Item, S, D, C>where D: DirectStateStore, C: ReasonablyRealtime,

Limits the rate at which items can be put into the current sink, with a randomized wait period.
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impl<SS, SP> SupersetOf<SS> for SPwhere SS: SubsetOf<SP>,

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fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct self from the equivalent element of its superset. Read more
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fn is_in_subset(&self) -> bool

Checks if self is actually part of its subset T (and can be converted to it).
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fn to_subset_unchecked(&self) -> SS

Use with care! Same as self.to_subset but without any property checks. Always succeeds.
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fn from_subset(element: &SS) -> SP

The inclusion map: converts self to the equivalent element of its superset.
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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> Upcastable for Twhere T: Any + Send + Sync + 'static,

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fn upcast_any_ref(&self) -> &(dyn Any + 'static)

upcast ref
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fn upcast_any_mut(&mut self) -> &mut (dyn Any + 'static)

upcast mut ref
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fn upcast_any_box(self: Box<T>) -> Box<dyn Any>

upcast boxed dyn
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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more