Struct dispose::Disposable

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pub struct Disposable<T: Dispose>(_);
Expand description

Wrapper for values implementing Dispose that provides a Drop implementation.

This struct will automatically consume its contents on drop using the provided Dispose implementation.

See this page for example usage.

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impl<T: Dispose> Disposable<T>

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pub fn new(val: T) -> Self

Construct a new Disposable instance, wrapping around val.

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pub unsafe fn leak(this: Self) -> T

Consume the wrapper, producing the contained value.

Safety

It is up to the user to ensure the value does not fall out of scope without being consumed.

The value can be safely re-inserted into a Disposable using Disposable::new to restore safe drop behavior, and it is recommended that the value is held by some container which consumes it on drop at all times. The intended use case for this function is transferring the value from one container to the other.

Trait Implementations§

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impl<T: Dispose> AsMut<T> for Disposable<T>

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

Converts this type into a mutable reference of the (usually inferred) input type.
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impl<T: Dispose> AsRef<T> for Disposable<T>

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fn as_ref(&self) -> &T

Converts this type into a shared reference of the (usually inferred) input type.
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impl<T: Dispose> Borrow<T> for Disposable<T>

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T: Dispose> BorrowMut<T> for Disposable<T>

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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: Debug + Dispose> Debug for Disposable<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: Dispose> Deref for Disposable<T>

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type Target = T

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

Dereferences the value.
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impl<T: Dispose> DerefMut for Disposable<T>

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

Mutably dereferences the value.
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impl<T: Dispose> Drop for Disposable<T>

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<T: Dispose> From<T> for Disposable<T>

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fn from(val: T) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Disposable<T>where T: RefUnwindSafe,

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impl<T> Send for Disposable<T>where T: Send,

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impl<T> Sync for Disposable<T>where T: Sync,

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impl<T> Unpin for Disposable<T>where T: Unpin,

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impl<T> UnwindSafe for Disposable<T>where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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 Twhere 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 Twhere 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 Twhere 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.