Struct ImmutableWeakArray

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pub struct ImmutableWeakArray<T: Sized, TAllocator = StdAllocator>
where TAllocator: Allocator,
{ /* private fields */ }
Expand description

A weak reference to an ImmutableArray.

It doesn’t provide direct access to the data itself, but is useful for tracking whether the associated ImmutableArray is still alive or not. Through ImmutableWeakArray::upgrade method.

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impl<T: Sized, TAllocator: Allocator> ImmutableWeakArray<T, TAllocator>

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pub fn upgrade(&self) -> Option<ImmutableArray<T, TAllocator>>

Upgrades the weak reference to a strong ImmutableArray reference.

Returns None if the array has been deallocated. Otherwise, returns a strong reference.

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pub fn strong_count(&self) -> usize

Returns the number of strong references to the string.

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pub fn weak_count(&self) -> usize

Returns the number of weak references to the string.

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pub fn release(self) -> bool

Releases the weak reference.

Returns true if it was the last weak reference and the memory was deallocated. Otherwise, returns false.

Trait Implementations§

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impl<T: Sized, TAllocator: Allocator> Clone for ImmutableWeakArray<T, TAllocator>

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fn clone(&self) -> Self

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

Performs copy-assignment from source. Read more
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impl<T: Sized, TAllocator: Allocator> Debug for ImmutableWeakArray<T, TAllocator>

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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: Sized, TAllocator: Allocator> Drop for ImmutableWeakArray<T, TAllocator>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<T, TAllocator> Freeze for ImmutableWeakArray<T, TAllocator>
where <TAllocator as Allocator>::TAllocatedMemory: Freeze, TAllocator: Freeze,

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impl<T, TAllocator> RefUnwindSafe for ImmutableWeakArray<T, TAllocator>
where <TAllocator as Allocator>::TAllocatedMemory: RefUnwindSafe, TAllocator: RefUnwindSafe, T: RefUnwindSafe,

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impl<T, TAllocator> Send for ImmutableWeakArray<T, TAllocator>
where T: Send + Sync,

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impl<T, TAllocator> Sync for ImmutableWeakArray<T, TAllocator>
where T: Send + Sync,

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impl<T, TAllocator> Unpin for ImmutableWeakArray<T, TAllocator>
where <TAllocator as Allocator>::TAllocatedMemory: Unpin, TAllocator: Unpin, T: Unpin,

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impl<T, TAllocator> UnwindSafe for ImmutableWeakArray<T, TAllocator>
where <TAllocator as Allocator>::TAllocatedMemory: UnwindSafe, TAllocator: UnwindSafe, T: UnwindSafe,

Blanket Implementations§

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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<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.