DropGuard

Struct DropGuard 

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pub struct DropGuard<F: FnOnce()>(/* private fields */);
Expand description

Run a FnOnce function on drop.

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

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pub fn new(f: F) -> Self

Construct from a FnOnce function.

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pub fn into_inner(self) -> F

Extract the function.

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impl<F: Clone + FnOnce()> Clone for DropGuard<F>

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fn clone(&self) -> DropGuard<F>

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<F: FnOnce()> Deref for DropGuard<F>

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type Target = F

The resulting type after dereferencing.
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fn deref(&self) -> &F

Dereferences the value.
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impl<F: FnOnce()> DerefMut for DropGuard<F>

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fn deref_mut(&mut self) -> &mut F

Mutably dereferences the value.
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impl<F: FnOnce()> From<F> for DropGuard<F>

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fn from(f: F) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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

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

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

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

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

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impl<F> UnwindSafe for DropGuard<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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. 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<P, T> Receiver for P
where P: Deref<Target = T> + ?Sized, T: ?Sized,

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type Target = T

🔬This is a nightly-only experimental API. (arbitrary_self_types)
The target type on which the method may be called.
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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.