Re: [PATCH] rust: avoid `box_uninit_write` feature

[Matt Gilbride]

On Wed, Sep 4, 2024 at 4:43 PM Miguel Ojeda <ojeda@xxxxxxxxxx> wrote:
>
> Like commit 0903b9e2a46c ("rust: alloc: eschew
> `Box<MaybeUninit<T>>::write`"), but for the new `rbtree` and `alloc` code.
>
> That is, `feature(new_uninit)` [1] got partially stabilized [2]
> for Rust 1.82.0 (expected to be released on 2024-10-17), but it
> did not include `Box<MaybeUninit<T>>::write`, which got split into
> `feature(box_uninit_write)` [3].
>
> To avoid relying on a new unstable feature, rewrite the `write` +
> `assume_init` pair manually.
>
> Link: https://github.com/rust-lang/rust/issues/63291 [1]
> Link: https://github.com/rust-lang/rust/pull/129401 [2]
> Link: https://github.com/rust-lang/rust/issues/129397 [3]
> Signed-off-by: Miguel Ojeda <ojeda@xxxxxxxxxx>

Reviewed-by: Matt Gilbride <mattgilbride@xxxxxxxxxx>