Struct futures::io::Seek [−][src]
#[must_use = "futures do nothing unless you `.await` or poll them"]pub struct Seek<'a, S> where
S: ?Sized, { /* fields omitted */ }
Expand description
Future for the seek
method.
Trait Implementations
impl<'_, S> Unpin for Seek<'_, S> where
S: Unpin + ?Sized,
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S: Unpin + ?Sized,
Auto Trait Implementations
impl<'a, S: ?Sized> RefUnwindSafe for Seek<'a, S> where
S: RefUnwindSafe,
S: RefUnwindSafe,
impl<'a, S: ?Sized> Send for Seek<'a, S> where
S: Send,
S: Send,
impl<'a, S: ?Sized> Sync for Seek<'a, S> where
S: Sync,
S: Sync,
impl<'a, S> !UnwindSafe for Seek<'a, S>
Blanket Implementations
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> FutureExt for T where
T: Future + ?Sized,
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impl<T> FutureExt for T where
T: Future + ?Sized,
[src]fn map<U, F>(self, f: F) -> Map<Self, F>ⓘ where
F: FnOnce(Self::Output) -> U,
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fn map<U, F>(self, f: F) -> Map<Self, F>ⓘ where
F: FnOnce(Self::Output) -> U,
[src]Map this future’s output to a different type, returning a new future of the resulting type. Read more
fn map_into<U>(self) -> MapInto<Self, U>ⓘ where
Self::Output: Into<U>,
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fn map_into<U>(self) -> MapInto<Self, U>ⓘ where
Self::Output: Into<U>,
[src]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,
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fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F>ⓘ where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
[src]Chain on a computation for when a future finished, passing the result of
the future to the provided closure f
. Read more
fn left_future<B>(self) -> Either<Self, B>ⓘ where
B: Future<Output = Self::Output>,
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fn left_future<B>(self) -> Either<Self, B>ⓘ where
B: Future<Output = Self::Output>,
[src]Wrap this future in an Either
future, making it the left-hand variant
of that Either
. Read more
fn right_future<A>(self) -> Either<A, Self>ⓘ where
A: Future<Output = Self::Output>,
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fn right_future<A>(self) -> Either<A, Self>ⓘ where
A: Future<Output = Self::Output>,
[src]Wrap this future in an Either
future, making it the right-hand variant
of that Either
. Read more
fn into_stream(self) -> IntoStream<Self>
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fn into_stream(self) -> IntoStream<Self>
[src]Convert this future into a single element stream. Read more
fn flatten(self) -> Flatten<Self>ⓘ where
Self::Output: Future,
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fn flatten(self) -> Flatten<Self>ⓘ where
Self::Output: Future,
[src]Flatten the execution of this future when the output of this future is itself another future. Read more
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
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fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
[src]Flatten the execution of this future when the successful result of this future is a stream. Read more
fn fuse(self) -> Fuse<Self>ⓘ
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fn fuse(self) -> Fuse<Self>ⓘ
[src]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 more
fn inspect<F>(self, f: F) -> Inspect<Self, F>ⓘ where
F: FnOnce(&Self::Output),
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fn inspect<F>(self, f: F) -> Inspect<Self, F>ⓘ where
F: FnOnce(&Self::Output),
[src]Do something with the output of a future before passing it on. Read more
fn catch_unwind(self) -> CatchUnwind<Self>ⓘNotable traits for CatchUnwind<Fut>
impl<Fut> Future for CatchUnwind<Fut> where
Fut: Future + UnwindSafe, type Output = Result<<Fut as Future>::Output, Box<dyn Any + 'static + Send, Global>>;
where
Self: UnwindSafe,
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fn catch_unwind(self) -> CatchUnwind<Self>ⓘNotable traits for CatchUnwind<Fut>
impl<Fut> Future for CatchUnwind<Fut> where
Fut: Future + UnwindSafe, type Output = Result<<Fut as Future>::Output, Box<dyn Any + 'static + Send, Global>>;
where
Self: UnwindSafe,
[src]Catches unwinding panics while polling the future. Read more
fn shared(self) -> Shared<Self>ⓘ where
Self::Output: Clone,
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fn shared(self) -> Shared<Self>ⓘ where
Self::Output: Clone,
[src]Create a cloneable handle to this future where all handles will resolve to the same result. Read more
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
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fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
[src]Turn this future into a future that yields ()
on completion and sends
its output to another future on a separate task. Read more
fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>>ⓘ where
Self: Send + 'a,
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fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a + Send, Global>>ⓘ where
Self: Send + 'a,
[src]Wrap the future in a Box, pinning it. Read more
fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>>ⓘ where
Self: 'a,
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fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>>ⓘ where
Self: 'a,
[src]Wrap the future in a Box, pinning it. Read more
fn unit_error(self) -> UnitError<Self>ⓘ
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fn unit_error(self) -> UnitError<Self>ⓘ
[src]Turns a Future<Output = T>
into a
TryFuture<Ok = T, Error = ()
>. Read more
fn never_error(self) -> NeverError<Self>ⓘNotable traits for NeverError<Fut>
impl<Fut> Future for NeverError<Fut> where
Map<Fut, OkFn<Infallible>>: Future, type Output = <Map<Fut, OkFn<Infallible>> as Future>::Output;
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fn never_error(self) -> NeverError<Self>ⓘNotable traits for NeverError<Fut>
impl<Fut> Future for NeverError<Fut> where
Map<Fut, OkFn<Infallible>>: Future, type Output = <Map<Fut, OkFn<Infallible>> as Future>::Output;
[src]Turns a Future<Output = T>
into a
TryFuture<Ok = T, Error = Never
>. Read more
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
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fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
[src]A convenience for calling Future::poll
on Unpin
future types.
fn now_or_never(self) -> Option<Self::Output>
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fn now_or_never(self) -> Option<Self::Output>
[src]Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to Future::poll
. Read more
impl<F> IntoFuture for F where
F: Future,
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impl<F> IntoFuture for F where
F: Future,
[src]type Output = <F as Future>::Output
type Output = <F as Future>::Output
into_future
)The output that the future will produce on completion.
type Future = F
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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pub fn into_future(self) -> <F as IntoFuture>::Future
[src]into_future
)Creates a future from a value.
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
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impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
[src]fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
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fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
[src]fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>ⓘ where
F: FnOnce(Self::Ok) -> T,
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fn map_ok<T, F>(self, f: F) -> MapOk<Self, F>ⓘ where
F: FnOnce(Self::Ok) -> T,
[src]Maps this future’s success value to a different value. Read more
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E>ⓘNotable traits for MapOkOrElse<Fut, F, G>
impl<Fut, F, G> Future for MapOkOrElse<Fut, F, G> where
Map<IntoFuture<Fut>, ChainFn<MapOkFn<F>, ChainFn<MapErrFn<G>, MergeResultFn>>>: Future, type Output = <Map<IntoFuture<Fut>, ChainFn<MapOkFn<F>, ChainFn<MapErrFn<G>, MergeResultFn>>> as Future>::Output;
where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
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fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E>ⓘNotable traits for MapOkOrElse<Fut, F, G>
impl<Fut, F, G> Future for MapOkOrElse<Fut, F, G> where
Map<IntoFuture<Fut>, ChainFn<MapOkFn<F>, ChainFn<MapErrFn<G>, MergeResultFn>>>: Future, type Output = <Map<IntoFuture<Fut>, ChainFn<MapOkFn<F>, ChainFn<MapErrFn<G>, MergeResultFn>>> as Future>::Output;
where
E: FnOnce(Self::Error) -> T,
F: FnOnce(Self::Ok) -> T,
[src]Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F>ⓘ where
F: FnOnce(Self::Error) -> E,
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fn map_err<E, F>(self, f: F) -> MapErr<Self, F>ⓘ where
F: FnOnce(Self::Error) -> E,
[src]Maps this future’s error value to a different value. Read more
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>ⓘ where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
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fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F>ⓘ where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
[src]Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>ⓘ where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
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fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F>ⓘ where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
[src]Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>ⓘ where
F: FnOnce(&Self::Ok),
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fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F>ⓘ where
F: FnOnce(&Self::Ok),
[src]Do something with the success value of a future before passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>ⓘNotable traits for InspectErr<Fut, F>
impl<Fut, F> Future for InspectErr<Fut, F> where
Inspect<IntoFuture<Fut>, InspectErrFn<F>>: Future, type Output = <Inspect<IntoFuture<Fut>, InspectErrFn<F>> as Future>::Output;
where
F: FnOnce(&Self::Error),
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fn inspect_err<F>(self, f: F) -> InspectErr<Self, F>ⓘNotable traits for InspectErr<Fut, F>
impl<Fut, F> Future for InspectErr<Fut, F> where
Inspect<IntoFuture<Fut>, InspectErrFn<F>>: Future, type Output = <Inspect<IntoFuture<Fut>, InspectErrFn<F>> as Future>::Output;
where
F: FnOnce(&Self::Error),
[src]Do something with the error value of a future before passing it on. Read more
fn try_flatten(self) -> TryFlatten<Self, Self::Ok>ⓘNotable traits for TryFlatten<Fut1, Fut2>
impl<Fut1, Fut2> Future for TryFlatten<Fut1, Fut2> where
TryFlatten<Fut1, Fut2>: Future, type Output = <TryFlatten<Fut1, Fut2> as Future>::Output;
where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
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fn try_flatten(self) -> TryFlatten<Self, Self::Ok>ⓘNotable traits for TryFlatten<Fut1, Fut2>
impl<Fut1, Fut2> Future for TryFlatten<Fut1, Fut2> where
TryFlatten<Fut1, Fut2>: Future, type Output = <TryFlatten<Fut1, Fut2> as Future>::Output;
where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
[src]Flatten the execution of this future when the successful result of this future is another future. Read more
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
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fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
[src]Flatten the execution of this future when the successful result of this future is a stream. Read more
fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F>ⓘNotable traits for UnwrapOrElse<Fut, F>
impl<Fut, F> Future for UnwrapOrElse<Fut, F> where
Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future, type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output;
where
F: FnOnce(Self::Error) -> Self::Ok,
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fn unwrap_or_else<F>(self, f: F) -> UnwrapOrElse<Self, F>ⓘNotable traits for UnwrapOrElse<Fut, F>
impl<Fut, F> Future for UnwrapOrElse<Fut, F> where
Map<IntoFuture<Fut>, UnwrapOrElseFn<F>>: Future, type Output = <Map<IntoFuture<Fut>, UnwrapOrElseFn<F>> as Future>::Output;
where
F: FnOnce(Self::Error) -> Self::Ok,
[src]fn into_future(self) -> IntoFuture<Self>ⓘNotable traits for IntoFuture<Fut>
impl<Fut> Future for IntoFuture<Fut> where
Fut: TryFuture, type Output = Result<<Fut as TryFuture>::Ok, <Fut as TryFuture>::Error>;
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fn into_future(self) -> IntoFuture<Self>ⓘNotable traits for IntoFuture<Fut>
impl<Fut> Future for IntoFuture<Fut> where
Fut: TryFuture, type Output = Result<<Fut as TryFuture>::Ok, <Fut as TryFuture>::Error>;
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