Enum futures_util::future::Either [−][src]
Combines two different futures, streams, or sinks having the same associated types into a single type.
Variants
First branch of the type
Second branch of the type
Implementations
impl<A, B, T> Either<(T, A), (T, B)>
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pub fn factor_first(self) -> (T, Either<A, B>)
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Factor out a homogeneous type from an either of pairs.
Here, the homogeneous type is the first element of the pairs.
impl<A, B, T> Either<(A, T), (B, T)>
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pub fn factor_second(self) -> (Either<A, B>, T)
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Factor out a homogeneous type from an either of pairs.
Here, the homogeneous type is the second element of the pairs.
impl<T> Either<T, T>
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pub fn into_inner(self) -> T
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Extract the value of an either over two equivalent types.
Trait Implementations
impl<A: Clone, B: Clone> Clone for Either<A, B>
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fn clone(&self) -> Either<A, B>ⓘ
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pub fn clone_from(&mut self, source: &Self)
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impl<A: Debug, B: Debug> Debug for Either<A, B>
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impl<A, B> FusedFuture for Either<A, B> where
A: FusedFuture,
B: FusedFuture<Output = A::Output>,
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A: FusedFuture,
B: FusedFuture<Output = A::Output>,
fn is_terminated(&self) -> bool
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impl<A, B> FusedStream for Either<A, B> where
A: FusedStream,
B: FusedStream<Item = A::Item>,
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A: FusedStream,
B: FusedStream<Item = A::Item>,
fn is_terminated(&self) -> bool
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impl<A, B> Future for Either<A, B> where
A: Future,
B: Future<Output = A::Output>,
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A: Future,
B: Future<Output = A::Output>,
type Output = A::Output
The type of value produced on completion.
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>
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impl<A, B, Item> Sink<Item> for Either<A, B> where
A: Sink<Item>,
B: Sink<Item, Error = A::Error>,
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A: Sink<Item>,
B: Sink<Item, Error = A::Error>,
type Error = A::Error
The type of value produced by the sink when an error occurs.
fn poll_ready(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
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self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error>
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fn poll_flush(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
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self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
fn poll_close(
self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
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self: Pin<&mut Self>,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>>
impl<A, B> Stream for Either<A, B> where
A: Stream,
B: Stream<Item = A::Item>,
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A: Stream,
B: Stream<Item = A::Item>,
Auto Trait Implementations
impl<A, B> Send for Either<A, B> where
A: Send,
B: Send,
A: Send,
B: Send,
impl<A, B> Sync for Either<A, B> where
A: Sync,
B: Sync,
A: Sync,
B: Sync,
impl<A, B> Unpin for Either<A, B> where
A: Unpin,
B: Unpin,
A: Unpin,
B: Unpin,
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<F> IntoFuture for F where
F: Future,
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F: Future,
type Output = <F as Future>::Output
into_future
)The output that the future will produce on completion.
type Future = F
into_future
)Which kind of future are we turning this into?
pub fn into_future(self) -> <F as IntoFuture>::Future
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impl<T, Item> SinkExt<Item> for T where
T: Sink<Item> + ?Sized,
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T: Sink<Item> + ?Sized,
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,
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F: FnMut(U) -> Fut,
Fut: Future<Output = Result<Item, E>>,
E: From<Self::Error>,
Self: Sized,
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,
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F: FnMut(U) -> St,
St: Stream<Item = Result<Item, Self::Error>>,
Self: Sized,
fn sink_map_err<E, F>(self, f: F) -> SinkMapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
Self: Sized,
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F: FnOnce(Self::Error) -> E,
Self: Sized,
fn sink_err_into<E>(self) -> SinkErrInto<Self, Item, E> where
Self: Sized,
Self::Error: Into<E>,
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Self: Sized,
Self::Error: Into<E>,
fn buffer(self, capacity: usize) -> Buffer<Self, Item> where
Self: Sized,
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Self: Sized,
fn close(&mut self) -> Close<'_, Self, Item>ⓘ where
Self: Unpin,
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Self: Unpin,
fn fanout<Si>(self, other: Si) -> Fanout<Self, Si> where
Self: Sized,
Item: Clone,
Si: Sink<Item, Error = Self::Error>,
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Self: Sized,
Item: Clone,
Si: Sink<Item, Error = Self::Error>,
fn flush(&mut self) -> Flush<'_, Self, Item>ⓘ where
Self: Unpin,
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Self: Unpin,
fn send(&mut self, item: Item) -> Send<'_, Self, Item>ⓘ where
Self: Unpin,
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Self: Unpin,
fn feed(&mut self, item: Item) -> Feed<'_, Self, Item>ⓘ where
Self: Unpin,
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Self: Unpin,
fn send_all<'a, St: ?Sized>(
&'a mut self,
stream: &'a mut St
) -> SendAll<'a, Self, St>ⓘ where
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin,
Self: Unpin,
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&'a mut self,
stream: &'a mut St
) -> SendAll<'a, Self, St>ⓘ where
St: TryStream<Ok = Item, Error = Self::Error> + Stream + Unpin,
Self: Unpin,
fn left_sink<Si2>(self) -> Either<Self, Si2>ⓘ where
Si2: Sink<Item, Error = Self::Error>,
Self: Sized,
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Si2: Sink<Item, Error = Self::Error>,
Self: Sized,
fn right_sink<Si1>(self) -> Either<Si1, Self>ⓘ where
Si1: Sink<Item, Error = Self::Error>,
Self: Sized,
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Si1: Sink<Item, Error = Self::Error>,
Self: Sized,
fn poll_ready_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,
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&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,
fn start_send_unpin(&mut self, item: Item) -> Result<(), Self::Error> where
Self: Unpin,
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Self: Unpin,
fn poll_flush_unpin(
&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,
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&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,
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&mut self,
cx: &mut Context<'_>
) -> Poll<Result<(), Self::Error>> where
Self: Unpin,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
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>
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impl<F, T, E> TryFuture for F where
F: Future<Output = Result<T, E>> + ?Sized,
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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>
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self: Pin<&mut F>,
cx: &mut Context<'_>
) -> Poll<<F as Future>::Output>
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
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>
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impl<S, T, E> TryStream for S where
S: Stream<Item = Result<T, E>> + ?Sized,
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S: Stream<Item = Result<T, E>> + ?Sized,