Struct reusable_box_future::ReusableLocalBoxFuture [−][src]
A reusable Pin<Box<dyn Future<Output = T>>
.
This type lets you replace the future stored in the box without reallocating when the size and alignment permits this.
Implementations
impl<T> ReusableLocalBoxFuture<T>
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pub fn new<F>(future: F) -> Self where
F: Future<Output = T> + 'static,
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F: Future<Output = T> + 'static,
Create a new ReusableLocalBoxFuture<T>
containing the provided future.
pub fn set<F>(&mut self, future: F) where
F: Future<Output = T> + 'static,
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F: Future<Output = T> + 'static,
Replace the future currently stored in this box.
This reallocates if and only if the layout of the provided future is different from the layout of the currently stored future.
pub fn try_set<F>(&mut self, future: F) -> Result<(), F> where
F: Future<Output = T> + 'static,
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F: Future<Output = T> + 'static,
Replace the future currently stored in this box.
This function never reallocates, but returns an error if the provided future has a different size or alignment from the currently stored future.
pub fn get_pin(&mut self) -> Pin<&mut dyn Future<Output = T>>
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Get a pinned reference to the underlying future.
pub fn poll(&mut self, cx: &mut Context<'_>) -> Poll<T>
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Poll the future stored inside this box.
Trait Implementations
impl<T> Debug for ReusableLocalBoxFuture<T>
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impl<T> Drop for ReusableLocalBoxFuture<T>
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impl<T> Future for ReusableLocalBoxFuture<T>
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type Output = T
The type of value produced on completion.
fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<T>
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Poll the future stored inside this box.
impl<T> Unpin for ReusableLocalBoxFuture<T>
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Auto Trait Implementations
impl<T> !Send for ReusableLocalBoxFuture<T>
impl<T> !Sync for ReusableLocalBoxFuture<T>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
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,
pub fn borrow_mut(&mut self) -> &mut T
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impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<F> IntoFuture for F where
F: Future,
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F: Future,
type Output = <F as Future>::Output
into_future
)The output that the future will produce on completion.
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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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.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,