Tracking Issue for arc_new_cyclic

[KodrAus]

The feature gate for the issue is #![feature(arc_new_cyclic)].

Tracking the following API:

impl<T> Arc<T> {
    pub fn new_cyclic(data_fn: impl FnOnce(&Weak<T>) -> T) -> Arc<T>;
}

impl<T> Rc<T> {
    pub fn new_cyclic(data_fn: impl FnOnce(&Weak<T>) -> T) -> Rc<T>;
}

Steps

• Add Arc::new_with() function for constructing self-referential data structures #72443
• Implement Arc::new_cyclic (Add Arc::new_cyclic #75505)
• Implement Rc::new_cyclic (impl Rc::new_cyclic #75994)
• FCP: Stabilize arc_new_cyclic #90666 (comment)
• Stabilization PR: Stabilize arc_new_cyclic #90666

Unresolved Questions

[mental32]

@Dylan-DPC @KodrAus allow me a day to implement arc_new_cyclic on Rc :)