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Deferred

Struct Deferred 

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pub struct Deferred<F: FnOnce()> { /* private fields */ }
Expand description

A guard that executes an action when dropped, unless cancelled.

This provides equivalent functionality to C++ fit::deferred_action and fit::defer.

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impl<F: FnOnce()> Deferred<F>

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pub const fn new(action: F) -> Self

Creates a new Deferred action that will run when dropped.

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pub fn cancel(&mut self)

Cancels the deferred action so that it will not run upon drop.

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pub fn call(&mut self)

Executes the deferred action immediately and cancels it.

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impl<F: FnOnce()> Drop for Deferred<F>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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fn pin_drop(self: Pin<&mut Self>)

🔬This is a nightly-only experimental API. (pin_ergonomics)
Execute the destructor for this type, but different to Drop::drop, it requires self to be pinned. Read more

Auto Trait Implementations§

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impl<F> Freeze for Deferred<F>
where F: Freeze,

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impl<F> RefUnwindSafe for Deferred<F>
where F: RefUnwindSafe,

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impl<F> Send for Deferred<F>
where F: Send,

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impl<F> Sync for Deferred<F>
where F: Sync,

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impl<F> Unpin for Deferred<F>
where F: Unpin,

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impl<F> UnsafeUnpin for Deferred<F>
where F: UnsafeUnpin,

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impl<F> UnwindSafe for Deferred<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<T> ToMutPtr for T
where T: ?Sized,

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type Target = T

The target type of the pointer.
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fn to_mut_ptr(&self) -> *mut T

Casts the reference to a mutable raw pointer.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.