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RcWeak

Struct RcWeak 

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pub struct RcWeak<T>
where T: ?Sized,
{ /* private fields */ }
Expand description

A serializable runtime wrapper around std::rc::Weak<T>.

RcWeak<T> is designed for graph-like structures where nodes may need to hold non-owning references to other nodes, and you still want them to round-trip through serialization while preserving reference identity.

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impl<T> RcWeak<T>

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pub fn new() -> RcWeak<T>

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impl<T> RcWeak<T>
where T: ?Sized,

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pub fn upgrade(&self) -> Option<Rc<T>>

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pub fn strong_count(&self) -> usize

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pub fn weak_count(&self) -> usize

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pub fn ptr_eq(&self, other: &RcWeak<T>) -> bool

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pub fn update(&self, weak: Weak<T>)

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pub fn from_std(weak: Weak<T>) -> RcWeak<T>

Trait Implementations§

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impl<T> Clone for RcWeak<T>
where T: ?Sized,

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fn clone(&self) -> RcWeak<T>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T> Debug for RcWeak<T>
where T: ?Sized,

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

Formats the value using the given formatter. Read more
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impl<T> Default for RcWeak<T>

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fn default() -> RcWeak<T>

Returns the “default value” for a type. Read more
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impl<T> Eq for RcWeak<T>
where T: ?Sized,

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impl<T> From<&Rc<T>> for RcWeak<T>
where T: ?Sized,

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fn from(rc: &Rc<T>) -> RcWeak<T>

Converts to this type from the input type.
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impl<T> PartialEq for RcWeak<T>
where T: ?Sized,

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fn eq(&self, other: &RcWeak<T>) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<T> Send for RcWeak<T>
where Weak<T>: Send, T: ?Sized,

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impl<T> Serializer for RcWeak<T>
where T: Serializer<Target = T>,

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type Target = RcWeak<T>

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fn write_data( value: &RcWeak<T>, context: &mut WriteContext<'_>, ) -> Result<(), Error>

Write the target body only.
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fn read_data(context: &mut ReadContext<'_>) -> Result<RcWeak<T>, Error>

Read the target body only.
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fn default_value(context: &mut ReadContext<'_>) -> Result<RcWeak<T>, Error>

Construct a target for a null or missing local value.
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fn read_arc_any( context: &mut ReadContext<'_>, ) -> Result<Arc<dyn Any + Send + Sync>, Error>

Read directly into the final owner for sync dynamic carriers.
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impl<T> Sync for RcWeak<T>
where Weak<T>: Sync, T: ?Sized,

Auto Trait Implementations§

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impl<T> !RefUnwindSafe for RcWeak<T>

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impl<T> !UnwindSafe for RcWeak<T>

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impl<T> Freeze for RcWeak<T>
where Rc<UnsafeCell<Weak<T>>>: Freeze, T: ?Sized,

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impl<T> Unpin for RcWeak<T>
where Rc<UnsafeCell<Weak<T>>>: Unpin, T: ?Sized,

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impl<T> UnsafeUnpin for RcWeak<T>
where Rc<UnsafeCell<Weak<T>>>: UnsafeUnpin, T: ?Sized,

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> ForyObject for T
where T: Any,

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fn as_any(&self) -> &(dyn Any + 'static)

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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.