[−][src]Enum futures::Async
Return type of future, indicating whether a value is ready or not.
Variants
Represents that a value is immediately ready.
Represents that a value is not ready yet, but may be so later.
Methods
impl<T> Async<T>
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pub fn map<F, U>(self, f: F) -> Async<U> where
F: FnOnce(T) -> U,
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F: FnOnce(T) -> U,
Change the success value of this Async
with the closure provided
pub fn is_ready(&self) -> bool
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Returns whether this is Async::Ready
pub fn is_not_ready(&self) -> bool
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Returns whether this is Async::NotReady
Trait Implementations
impl<T> From<T> for Async<T>
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impl<T: Debug> Debug for Async<T>
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impl<T: PartialEq> PartialEq<Async<T>> for Async<T>
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impl<T: Copy> Copy for Async<T>
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impl<T: Clone> Clone for Async<T>
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Auto Trait Implementations
impl<T> Unpin for Async<T> where
T: Unpin,
T: Unpin,
impl<T> Send for Async<T> where
T: Send,
T: Send,
impl<T> Sync for Async<T> where
T: Sync,
T: Sync,
impl<T> UnwindSafe for Async<T> where
T: UnwindSafe,
T: UnwindSafe,
impl<T> RefUnwindSafe for Async<T> where
T: RefUnwindSafe,
T: RefUnwindSafe,
Blanket Implementations
impl<T> From<T> for T
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impl<T> From<!> for T
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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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>
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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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>
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,