Struct futures_util::stream::NextIf
source · pub struct NextIf<'a, St: Stream, F> { /* private fields */ }
Expand description
Future for the Peekable::next_if
method.
Trait Implementations§
source§impl<St, F> FusedFuture for NextIf<'_, St, F>
impl<St, F> FusedFuture for NextIf<'_, St, F>
source§fn is_terminated(&self) -> bool
fn is_terminated(&self) -> bool
Returns
true
if the underlying future should no longer be polled.impl<'__pin, 'a, St: Stream, F> Unpin for NextIf<'a, St, F>where
__Origin<'__pin, 'a, St, F>: Unpin,
Auto Trait Implementations§
impl<'a, St, F> Freeze for NextIf<'a, St, F>where
F: Freeze,
impl<'a, St, F> RefUnwindSafe for NextIf<'a, St, F>
impl<'a, St, F> Send for NextIf<'a, St, F>
impl<'a, St, F> Sync for NextIf<'a, St, F>
impl<'a, St, F> !UnwindSafe for NextIf<'a, St, F>
Blanket Implementations§
§impl<T> Any for Twhere
T: 'static + ?Sized,
impl<T> Any for Twhere
T: 'static + ?Sized,
§impl<T> Borrow<T> for Twhere
T: ?Sized,
impl<T> Borrow<T> for Twhere
T: ?Sized,
§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> FutureExt for Twhere
T: Future + ?Sized,
impl<T> FutureExt for Twhere
T: Future + ?Sized,
source§fn map<U, F>(self, f: F) -> Map<Self, F> ⓘwhere
F: FnOnce(Self::Output) -> U,
Self: Sized,
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
source§fn map_into<U>(self) -> MapInto<Self, U> ⓘwhere
Self::Output: Into<U>,
Self: Sized,
fn map_into<U>(self) -> MapInto<Self, U> ⓘwhere
Self::Output: Into<U>,
Self: Sized,
Map this future’s output to a different type, returning a new future of
the resulting type. Read more
source§fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> ⓘwhere
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Self: Sized,
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 moresource§fn left_future<B>(self) -> Either<Self, B> ⓘwhere
B: Future<Output = Self::Output>,
Self: Sized,
fn left_future<B>(self) -> Either<Self, B> ⓘwhere
B: Future<Output = Self::Output>,
Self: Sized,
source§fn right_future<A>(self) -> Either<A, Self> ⓘwhere
A: Future<Output = Self::Output>,
Self: Sized,
fn right_future<A>(self) -> Either<A, Self> ⓘwhere
A: Future<Output = Self::Output>,
Self: Sized,
source§fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
fn into_stream(self) -> IntoStream<Self>where
Self: Sized,
Convert this future into a single element stream. Read more
source§fn flatten(self) -> Flatten<Self> ⓘwhere
Self::Output: Future,
Self: Sized,
fn flatten(self) -> Flatten<Self> ⓘwhere
Self::Output: Future,
Self: Sized,
Flatten the execution of this future when the output of this
future is itself another future. Read more
source§fn flatten_stream(self) -> FlattenStream<Self>where
Self::Output: Stream,
Self: Sized,
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
source§fn fuse(self) -> Fuse<Self> ⓘwhere
Self: Sized,
fn fuse(self) -> Fuse<Self> ⓘwhere
Self: Sized,
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 moresource§fn inspect<F>(self, f: F) -> Inspect<Self, F> ⓘwhere
F: FnOnce(&Self::Output),
Self: Sized,
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
source§fn unit_error(self) -> UnitError<Self> ⓘwhere
Self: Sized,
fn unit_error(self) -> UnitError<Self> ⓘwhere
Self: Sized,
Turns a
Future<Output = T>
into a
TryFuture<Ok = T, Error = ()
>.source§fn never_error(self) -> NeverError<Self> ⓘwhere
Self: Sized,
fn never_error(self) -> NeverError<Self> ⓘwhere
Self: Sized,
Turns a
Future<Output = T>
into a
TryFuture<Ok = T, Error = Never
>.source§fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output>where
Self: Unpin,
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output>where
Self: Unpin,
A convenience for calling
Future::poll
on Unpin
future types.source§fn now_or_never(self) -> Option<Self::Output>where
Self: Sized,
fn now_or_never(self) -> Option<Self::Output>where
Self: Sized,
Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to
Future::poll
. Read more§impl<T, U> Into<U> for Twhere
U: From<T>,
impl<T, U> Into<U> for Twhere
U: From<T>,
§impl<F> IntoFuture for Fwhere
F: Future,
impl<F> IntoFuture for Fwhere
F: Future,
§type IntoFuture = F
type IntoFuture = F
Which kind of future are we turning this into?
§fn into_future(self) -> <F as IntoFuture>::IntoFuture
fn into_future(self) -> <F as IntoFuture>::IntoFuture
Creates a future from a value. Read more