Trait StrongRef 

pub trait StrongRef {
    type Weak: WeakRef<Strong = Self>;

    // Required methods
    fn downgrade(&self) -> Self::Weak;
    fn ptr_eq(&self, other: &Self) -> bool;
}

A trait for strong references.

Required Associated Types

type Weak: WeakRef<Strong = Self>

The type of the weak reference.

For example, for std::rc::Rc<T>, this will be std::rc::Weak<T>.

Required Methods

fn downgrade(&self) -> Self::Weak

Constructs a weak reference from a strong reference.

This is usually implemented by a downgrade method.

fn ptr_eq(&self, other: &Self) -> bool

Compare two strong references for equality.

This is usually implemented by a ptr_eq method.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T: ?Sized> StrongRef for Rc<T>

type Weak = Weak<T>

fn downgrade(&self) -> Self::Weak

fn ptr_eq(&self, other: &Self) -> bool

impl<T: ?Sized> StrongRef for Arc<T>

type Weak = Weak<T>

fn downgrade(&self) -> Self::Weak

fn ptr_eq(&self, other: &Self) -> bool

Implementors