[−][src]Struct futures_util::stream::Next
#[must_use = "futures do nothing unless polled"]pub struct Next<'a, St: 'a> { /* fields omitted */ }
A future of the next element of a stream.
Trait Implementations
impl<'a, St: Debug + 'a> Debug for Next<'a, St>[src]
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impl<'a, St: Debug + 'a> Debug for Next<'a, St>fn fmt(&self, f: &mut Formatter) -> Result[src]
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fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl<St: Stream + Unpin, '_> Unpin for Next<'_, St>[src]
impl<St: Stream + Unpin, '_> Unpin for Next<'_, St>impl<St: Stream + Unpin, '_> Future for Next<'_, St>[src]
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impl<St: Stream + Unpin, '_> Future for Next<'_, St>type Output = Option<St::Item>
🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
The result of the Future.
fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Self::Output>[src]
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fn poll(self: PinMut<Self>, cx: &mut Context) -> Poll<Self::Output>🔬 This is a nightly-only experimental API. (futures_api)
futures in libcore are unstable
Attempt to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
Auto Trait Implementations
impl<'a, St> Send for Next<'a, St> where
St: Send,
impl<'a, St> Send for Next<'a, St> where
St: Send, impl<'a, St> Sync for Next<'a, St> where
St: Sync,
impl<'a, St> Sync for Next<'a, St> where
St: Sync, Blanket Implementations
impl<T> FutureExt for T where
T: Future + ?Sized, [src]
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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,
Self: Sized, [src]
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fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
Self: Sized, 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,
Self: Sized, [src]
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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Self: Sized, Chain on a computation for when a future finished, passing the result of the future to the provided closure f. Read more
fn join<Fut2>(self, other: Fut2) -> Join<Self, Fut2> where
Fut2: Future,
Self: Sized, [src]
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fn join<Fut2>(self, other: Fut2) -> Join<Self, Fut2> where
Fut2: Future,
Self: Sized, Joins the result of two futures, waiting for them both to complete. Read more
fn join3<Fut2, Fut3>(
self,
future2: Fut2,
future3: Fut3
) -> Join3<Self, Fut2, Fut3> where
Fut2: Future,
Fut3: Future,
Self: Sized, [src]
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fn join3<Fut2, Fut3>(
self,
future2: Fut2,
future3: Fut3
) -> Join3<Self, Fut2, Fut3> where
Fut2: Future,
Fut3: Future,
Self: Sized, Same as join, but with more futures. Read more
fn join4<Fut2, Fut3, Fut4>(
self,
future2: Fut2,
future3: Fut3,
future4: Fut4
) -> Join4<Self, Fut2, Fut3, Fut4> where
Fut2: Future,
Fut3: Future,
Fut3: Future,
Fut4: Future,
Self: Sized, [src]
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fn join4<Fut2, Fut3, Fut4>(
self,
future2: Fut2,
future3: Fut3,
future4: Fut4
) -> Join4<Self, Fut2, Fut3, Fut4> where
Fut2: Future,
Fut3: Future,
Fut3: Future,
Fut4: Future,
Self: Sized, Same as join, but with more futures. Read more
fn join5<Fut2, Fut3, Fut4, Fut5>(
self,
future2: Fut2,
future3: Fut3,
future4: Fut4,
future5: Fut5
) -> Join5<Self, Fut2, Fut3, Fut4, Fut5> where
Fut2: Future,
Fut3: Future,
Fut3: Future,
Fut4: Future,
Fut5: Future,
Self: Sized, [src]
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fn join5<Fut2, Fut3, Fut4, Fut5>(
self,
future2: Fut2,
future3: Fut3,
future4: Fut4,
future5: Fut5
) -> Join5<Self, Fut2, Fut3, Fut4, Fut5> where
Fut2: Future,
Fut3: Future,
Fut3: Future,
Fut4: Future,
Fut5: Future,
Self: Sized, Same as join, but with more futures. Read more
fn into_stream(self) -> IntoStream<Self> where
Self: Sized, [src]
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fn into_stream(self) -> IntoStream<Self> where
Self: Sized, Convert this future into a single element stream. Read more
fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Self: Sized, [src]
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fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Self: Sized, Flatten the execution of this future when the successful result of this future is itself another future. Read more
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Self: Sized, [src]
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fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Self: Sized, Flatten the execution of this future when the successful result of this future is a stream. Read more
fn fuse(self) -> Fuse<Self> where
Self: Sized, [src]
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fn fuse(self) -> Fuse<Self> where
Self: Sized, Fuse a future such that poll will never again be called once it has completed. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
Self: Sized, [src]
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fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
Self: Sized, Do something with the output of a future before passing it on. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: Sized + UnwindSafe, [src]
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fn catch_unwind(self) -> CatchUnwind<Self> where
Self: Sized + UnwindSafe, Catches unwinding panics while polling the future. Read more
fn shared(self) -> Shared<Self> where
Self: Sized, [src]
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fn shared(self) -> Shared<Self> where
Self: Sized, Create a cloneable handle to this future where all handles will resolve to the same result. Read more
fn boxed(self) -> PinBox<Self> where
Self: Sized, [src]
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fn boxed(self) -> PinBox<Self> where
Self: Sized, Wrap the future in a Box, pinning it.
fn unit_error(self) -> UnitError<Self> where
Self: Sized, [src]
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fn unit_error(self) -> UnitError<Self> where
Self: Sized, Turns a Future into a TryFuture with Error = ().
fn with_spawner<Sp>(self, spawner: Sp) -> WithSpawner<Self, Sp> where
Self: Sized,
Sp: Spawn, [src]
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fn with_spawner<Sp>(self, spawner: Sp) -> WithSpawner<Self, Sp> where
Self: Sized,
Sp: Spawn, Assigns the provided Spawn to be used when spawning tasks from within the future. Read more
fn poll_unpin(&mut self, cx: &mut Context) -> Poll<Self::Output> where
Self: Unpin + Sized, [src]
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fn poll_unpin(&mut self, cx: &mut Context) -> Poll<Self::Output> where
Self: Unpin + Sized, A convenience for calling Future::poll on Unpin future types.
impl<T> From for T[src]
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impl<T> From for Timpl<T, U> Into for T where
U: From<T>, [src]
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impl<T, U> Into for T where
U: From<T>, impl<T, U> TryFrom for T where
T: From<U>, [src]
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impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized, [src]
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impl<T> Borrow for T where
T: ?Sized, ⓘImportant traits for &'a mut Rfn borrow(&self) -> &T[src]
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fn borrow(&self) -> &TImmutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized, [src]
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impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
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fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
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impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized, [src]
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impl<T> BorrowMut for T where
T: ?Sized,