pub struct Drain<T> { /* private fields */ }
Expand description
Sink for the drain
function.
Trait Implementations§
§impl<T> Sink<T> for Drain<T>
impl<T> Sink<T> for Drain<T>
§type Error = Infallible
type Error = Infallible
The type of value produced by the sink when an error occurs.
§fn poll_ready(
self: Pin<&mut Drain<T>>,
_cx: &mut Context<'_>
) -> Poll<Result<(), <Drain<T> as Sink<T>>::Error>>
fn poll_ready( self: Pin<&mut Drain<T>>, _cx: &mut Context<'_> ) -> Poll<Result<(), <Drain<T> as Sink<T>>::Error>>
Attempts to prepare the
Sink
to receive a value. Read more§fn start_send(
self: Pin<&mut Drain<T>>,
_item: T
) -> Result<(), <Drain<T> as Sink<T>>::Error>
fn start_send( self: Pin<&mut Drain<T>>, _item: T ) -> Result<(), <Drain<T> as Sink<T>>::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 moreimpl<T> Unpin for Drain<T>
Auto Trait Implementations§
impl<T> RefUnwindSafe for Drain<T>where
T: RefUnwindSafe,
impl<T> Send for Drain<T>where
T: Send,
impl<T> Sync for Drain<T>where
T: Sync,
impl<T> UnwindSafe for Drain<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
§impl<T> CompatExt for T
impl<T> CompatExt for T
§impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
§fn into_any(self: Box<T>) -> Box<dyn Any>
fn into_any(self: Box<T>) -> Box<dyn Any>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
.§fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
.§fn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s.§fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s.§impl<T> DowncastSync for T
impl<T> DowncastSync for T
§impl<S> FromSample<S> for S
impl<S> FromSample<S> for S
fn from_sample_(s: S) -> S
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
fn instrument(self, span: Span) -> Instrumented<Self> ⓘ
§impl<F, T> IntoSample<T> for Fwhere
T: FromSample<F>,
impl<F, T> IntoSample<T> for Fwhere
T: FromSample<F>,
fn into_sample(self) -> T
§impl<T> Pointable for T
impl<T> Pointable for T
§impl<T, Item> SinkExt<Item> for T
impl<T, Item> SinkExt<Item> for T
§fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>
fn with<U, Fut, F, E>(self, f: F) -> With<Self, Item, U, Fut, F>
Composes a function in front of the sink. Read more
§fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F>
fn with_flat_map<U, St, F>(self, f: F) -> WithFlatMap<Self, Item, U, St, F>
Composes a function in front of the sink. Read more
§fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F>
Transforms the error returned by the sink.
§fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E>
Map this sink’s error to a different error type using the
Into
trait. Read more§fn buffer(self, capacity: usize) -> Buffer<Self, Item>where
Self: Sized,
fn buffer(self, capacity: usize) -> Buffer<Self, Item>where
Self: Sized,
Adds a fixed-size buffer to the current sink. Read more
§fn flush(&mut self) -> Flush<'_, Self, Item> ⓘwhere
Self: Unpin,
fn flush(&mut self) -> Flush<'_, Self, Item> ⓘwhere
Self: Unpin,
Flush the sink, processing all pending items. Read more
§fn send(&mut self, item: Item) -> Send<'_, Self, Item> ⓘwhere
Self: Unpin,
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
§fn feed(&mut self, item: Item) -> Feed<'_, Self, Item> ⓘwhere
Self: Unpin,
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
§fn send_all<St, 'a>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> ⓘ
fn send_all<St, 'a>(&'a mut self, stream: &'a mut St) -> SendAll<'a, Self, St> ⓘ
A future that completes after the given stream has been fully processed
into the sink, including flushing. Read more
§fn right_sink<Si1>(self) -> Either<Si1, Self> ⓘ
fn right_sink<Si1>(self) -> Either<Si1, Self> ⓘ
§fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>where
Self: Unpin,
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.§fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error>where
Self: Unpin,
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.§fn poll_flush_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>where
Self: Unpin,
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.§fn poll_close_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>where
Self: Unpin,
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.