with_async_context

Struct AsyncContext

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pub struct AsyncContext<C, T, F>
where
    C: 'static + ToString,
    F: Future<Output = T>,
{ /* private fields */ }
Expand description

Represents an async execution context that carries data of type C while executing a future of type F that produces output of type T

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impl<C, T, F> Future for AsyncContext<C, T, F>
where C: 'static + ToString, F: Future<Output = T>,

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type Output = (T, C)

The type of value produced on completion.
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fn poll(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output>

Attempts to resolve the future to a final value, registering the current task for wakeup if the value is not yet available. Read more
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impl<'pin, C, T, F> Unpin for AsyncContext<C, T, F>
where C: 'static + ToString, F: Future<Output = T>, PinnedFieldsOf<__AsyncContext<'pin, C, T, F>>: Unpin,

Auto Trait Implementations§

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impl<C, T, F> !Freeze for AsyncContext<C, T, F>

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impl<C, T, F> RefUnwindSafe for AsyncContext<C, T, F>
where F: RefUnwindSafe,

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impl<C, T, F> Send for AsyncContext<C, T, F>
where F: Send, C: Send,

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impl<C, T, F> Sync for AsyncContext<C, T, F>
where F: Sync, C: Send,

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impl<C, T, F> UnwindSafe for AsyncContext<C, T, F>
where F: 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> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> 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<F> IntoFuture for F
where F: Future,

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type Output = <F as Future>::Output

The output that the future will produce on completion.
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type IntoFuture = F

Which kind of future are we turning this into?
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fn into_future(self) -> <F as IntoFuture>::IntoFuture

Creates a future from a value. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.