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Pending

zerocopy::util::macro_util::core_reexport::future

Struct Pending

1.48.0 · Source

pub struct Pending<T> { /* private fields */ }

Expand description

Creates a future which never resolves, representing a computation that never finishes.

This struct is created by pending(). See its documentation for more.

Trait Implementations§

1.48.0 · Source§

impl<T> Clone for Pending<T>

fn clone(&self) -> Pending<T> ⓘ

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

1.48.0 · Source§

impl<T> Debug for Pending<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more

1.48.0 · Source§

impl<T> Future for Pending<T>

type Output = T

The type of value produced on completion.

fn poll(self: Pin<&mut Pending<T>>, _: &mut Context<'_>) -> Poll<T>

Attempts 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<T> Freeze for Pending<T>

impl<T> RefUnwindSafe for Pending<T>

impl<T> Send for Pending<T>

impl<T> Sync for Pending<T>

impl<T> Unpin for Pending<T>

impl<T> UnsafeUnpin for Pending<T>

impl<T> UnwindSafe for Pending<T>

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Identity for T
where T: ?Sized,

type Type = T

Self.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<F> IntoFuture for F
where F: Future,

type Output = <F as Future>::Output

The output that the future will produce on completion.

type IntoFuture = F

Which kind of future are we turning this into?

fn into_future(self) -> <F as IntoFuture>::IntoFuture

Creates a future from a value. Read more

impl<T> InvariantsEq<ManuallyDrop<T>> for T
where T: ?Sized,

impl<T> InvariantsEq<T> for T
where T: ?Sized,

impl<T> InvariantsEq<Wrapping<T>> for T

impl<Src, Dst, A, SV, DV, R> MutationCompatible<Src, A, SV, DV, (BecauseRead, R)> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: Read<A, R> + ?Sized, Dst: Read<A, R> + ?Sized,

impl<Src, Dst, A, SV, DV> MutationCompatible<Src, A, SV, DV, BecauseInvariantsEq> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: TransmuteFrom<Dst, DV, SV> + ?Sized, Dst: TransmuteFrom<Src, SV, DV> + InvariantsEq<Src> + ?Sized,

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

impl<T> SizeEq<Cell<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<ManuallyDrop<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<MaybeUninit<T>> for T

type CastFrom = CastSizedExact

impl<T> SizeEq<T> for T
where T: ?Sized,

type CastFrom = IdCast

impl<T> SizeEq<UnsafeCell<T>> for T
where T: ?Sized,

type CastFrom = CastFromWrapper

impl<T> SizeEq<Wrapping<T>> for T

type CastFrom = CastFromWrapper

impl<T> SizedTypeProperties for T

#[doc(hidden)]
const SIZE: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const ALIGNMENT: Alignment = _

🔬This is a nightly-only experimental API. (ptr_alignment_type)

#[doc(hidden)]
const IS_ZST: bool = _

🔬This is a nightly-only experimental API. (sized_type_properties)

true if this type requires no storage. false if its size is greater than zero. Read more

#[doc(hidden)]
const LAYOUT: Layout = _

🔬This is a nightly-only experimental API. (sized_type_properties)

#[doc(hidden)]
const MAX_SLICE_LEN: usize = _

🔬This is a nightly-only experimental API. (sized_type_properties)

The largest safe length for a [Self]. Read more

impl<T> TransmuteFrom<Cell<T>, Valid, Valid> for T
where T: ?Sized,

impl<T> TransmuteFrom<ManuallyDrop<T>, Valid, Valid> for T
where T: ?Sized,

impl<Src, Dst> TransmuteFrom<Src, Initialized, Initialized> for Dst
where Src: ?Sized, Dst: ?Sized,

impl<Src, Dst, V> TransmuteFrom<Src, V, Uninit> for Dst
where V: Validity, Src: ?Sized, Dst: ?Sized,

impl<Src, Dst> TransmuteFrom<Src, Valid, Initialized> for Dst
where Src: IntoBytes + ?Sized, Dst: ?Sized,

impl<T> TransmuteFrom<UnsafeCell<T>, Valid, Valid> for T
where T: ?Sized,

impl<T> TransmuteFrom<Wrapping<T>, Valid, Valid> for T

impl<Src, Dst, A, SV, DV, C, R> TransmuteFromPtr<Src, A, SV, DV, C, R> for Dst
where A: Aliasing, SV: Validity, DV: Validity, C: CastExact<Src, Dst>, Dst: TransmuteFrom<Src, SV, DV> + TryTransmuteFromPtr<Src, A, SV, DV, C, R> + ?Sized, Src: ?Sized,

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<Src, Dst, SV, DV, A, C, R> TryTransmuteFromPtr<Src, A, SV, DV, C, (BecauseMutationCompatible, R)> for Dst
where A: Aliasing, SV: Validity, DV: Validity, Src: TransmuteFrom<Dst, DV, SV> + ?Sized, Dst: MutationCompatible<Src, A, SV, DV, R> + ?Sized, C: CastExact<Src, Dst>,