Enum TryGet

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pub enum TryGet<H, R, E> {
    Ready(Result<R, TaskExecutionError<E>>),
    Pending(H),
}

Expand description

Result of a non-blocking attempt to retrieve a task result.

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Ready(Result<R, TaskExecutionError<E>>)

The task result is ready.

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Pending(H)

The task has not completed and the handle is returned to the caller.

Auto Trait Implementations§

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impl<H, R, E> Freeze for TryGet<H, R, E>
where H: Freeze, R: Freeze, E: Freeze,

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impl<H, R, E> RefUnwindSafe for TryGet<H, R, E>
where H: RefUnwindSafe, R: RefUnwindSafe, E: RefUnwindSafe,

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impl<H, R, E> UnsafeUnpin for TryGet<H, R, E>
where H: UnsafeUnpin, R: UnsafeUnpin, E: UnsafeUnpin,

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impl<H, R, E> UnwindSafe for TryGet<H, R, E>
where H: UnwindSafe, R: UnwindSafe, E: UnwindSafe,

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

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

Mutably borrows from an owned value. Read more

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impl<T> DropFlavorWrapper<T> for T

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type Flavor = MayDrop

The DropFlavor that wraps T into Self

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, W> HasTypeWitness<W> for T
where W: MakeTypeWitness<Arg = T>, T: ?Sized,

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const WITNESS: W = W::MAKE

A constant of the type witness

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

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const TYPE_EQ: TypeEq<T, <T as Identity>::Type> = TypeEq::NEW

Proof that Self is the same type as Self::Type, provides methods for casting between Self and Self::Type.

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type Type = T

The same type as Self, used to emulate type equality bounds (T == U) with associated type equality constraints (T: Identity<Type = U>).

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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