Tracking Issue for const_ref_cell (original) (raw)

Feature gate: #![feature(const_ref_cell)]

This is a tracking issue for using RefCell in a const context.

Public API

// core::cell

impl RefCell pub const fn replace(&self, t: T) -> T; pub const fn swap(&self, other: &Self); }

impl<T: ?Sized> RefCell { pub const fn borrow(&self) -> Ref<'_, T>; pub const fn try_borrow(&self) -> Result<Ref<'_, T>, BorrowError>; pub const fn borrow_mut(&self) -> RefMut<'_, T>; pub const fn try_borrow_mut(&self) -> Result<RefMut<'_, T>, BorrowMutError>; pub const fn as_ptr(&self) -> *mut T; pub const fn get_mut(&mut self) -> &mut T; pub const fn undo_leak(&mut self) -> &mut T; pub const unsafe fn try_borrow_unguarded(&self) -> Result<&T, BorrowError>; }

impl<'b, T: ?Sized> Ref<'b, T> { pub const fn clone(orig: &Ref<'b, T>) -> Ref<'b, T>; pub const fn leak(orig: Ref<'b, T>) -> &'b T; }

impl<'b, T: ?Sized> RefMut<'b, T> { pub const fn leak(mut orig: RefMut<'b, T>) -> &'b mut T; }

Steps

Unresolved Questions

Footnotes

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