Struct NodeWeak

pub struct NodeWeak<T> { /* private fields */ }

A shared weak reference to a node.

Implementations

impl<T> NodeWeak<T>

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

Attempts to upgrade the weak reference of a node to a Node.

Returns None if the target node is already dropped.

use dendron::Node;

let root = Node::new_tree("root");
let root_weak = root.downgrade();
assert!(root_weak.upgrade().is_some());

drop(root);
assert!(root_weak.upgrade().is_none());

Trait Implementations

impl<T> Clone for NodeWeak<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for NodeWeak<T>

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

Formats the value using the given formatter.