Tracking Issue for const `Cell` methods that depend on const traits

[clarfonthey]

Feature gate: #![feature(const_cell_traits)]

This is a tracking issue for const Cell methods that depend on const traits.

Public API

impl<T> Cell<T> {
    pub const fn set(&self, val: T) where T: [const] Destruct;
    
    // NOTE: Copy should imply const Destruct, but it doesn't atm
    pub const fn update(&self, f: impl [const] FnOnce(T) -> T) where T: Copy + [const] Destruct;

    pub const fn take(&self) -> T where T: [const] Default;
}

Steps / History

(Remember to update the S-tracking-* label when checking boxes.)

• Implementation: const Cell methods #147788
• Final comment period (FCP)¹
• Stabilization PR

Unresolved Questions

• None yet.

Footnotes

1. https://std-dev-guide.rust-lang.org/feature-lifecycle/stabilization.html ↩