Struct AsyncScope

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pub struct AsyncScope { /* private fields */ }
Expand description

An async-aware scope guard for storing and running deferred async closures.

This version uses dynamic allocation with Vec<Box<...>>. It requires the global allocator (heap).

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impl AsyncScope

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pub fn new() -> Self

Creates a new AsyncScope for collecting async deferred tasks.

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pub fn defer<F>(&mut self, f: F)
where F: FnOnce() -> Pin<Box<dyn Future<Output = ()> + 'static>> + 'static,

Registers an async closure that will be executed when run() is called.

Deferred tasks are run in reverse order (LIFO).

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pub async fn run(self)

Executes all stored async tasks in reverse (stack-like) order.

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

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fn type_id(&self) -> TypeId

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

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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<T, U> TryFrom<U> for 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.