wiwi::rc

Struct RcWeak

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pub struct RcWeak<C, V, S>
where
    C: Counter,
{ /* private fields */ }
Expand description

Weak pointer to a reference counted thin pointer Rc

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impl<C, V, S> RcWeak<C, V, S>
where C: Counter,

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pub fn strong_count(&self) -> usize

Gets the strong pointer count

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pub fn weak_count(&self) -> usize

Gets the weak pointer count

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pub fn upgrade(&self) -> Option<Rc<C, V, S>>

“Upgrades” this pointer, returning a strong pointer Rc to the data if there are still other strong pointers to it

Trait Implementations§

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impl<C, V, S> Clone for RcWeak<C, V, S>
where C: Counter,

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fn clone(&self) -> Self

Creates a new weak pointer to the same allocation, incrementing the weak count

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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<C, V, S> Drop for RcWeak<C, V, S>
where C: Counter,

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl<C, V, S> Send for RcWeak<C, V, S>
where C: Counter + Send, V: Send, S: Send,

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impl<C, V, S> Sync for RcWeak<C, V, S>
where C: Counter + Sync, V: Sync, S: Sync,

Auto Trait Implementations§

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impl<C, V, S> Freeze for RcWeak<C, V, S>

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impl<C, V, S> RefUnwindSafe for RcWeak<C, V, S>
where C: RefUnwindSafe, V: RefUnwindSafe, S: RefUnwindSafe,

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impl<C, V, S> Unpin for RcWeak<C, V, S>

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impl<C, V, S> UnwindSafe for RcWeak<C, V, S>
where C: RefUnwindSafe, V: RefUnwindSafe, S: RefUnwindSafe,

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impl<T> AcceptDefault<T> for T

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fn unwrap_or_default(self) -> T

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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, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> Encode for T

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fn encode<E>(self) -> <E as Encoding>::EncodeOutput
where T: Encodable<E>, E: Encoding,

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fn decode<E>(self) -> <E as Encoding>::DecodeOutput
where T: Decodable<E>, E: Encoding,

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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> GenericChainConversion for T

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fn into_generic_chain(self) -> GenericChain<Self>

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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.