bevy/crates/bevy_utils
JoJoJet ae39b07d26
Replace some unsafe system executor code with safe code (#8274)
# Objective

The function `SyncUnsafeCell::from_mut` returns `&SyncUnsafeCell<T>`,
even though it could return `&mut SyncUnsafeCell<T>`. This means it is
not possible to call `get_mut` on the returned value, so you need to use
unsafe code to get exclusive access back.

## Solution

Return `&mut Self` instead of `&Self` in `SyncUnsafeCell::from_mut`.
This is consistent with my proposal for `UnsafeCell::from_mut`:
https://github.com/rust-lang/libs-team/issues/198.

Replace an unsafe pointer dereference with a safe call to `get_mut`.

---

## Changelog

+ The function `bevy_utils::SyncUnsafeCell::get_mut` now returns a value
of type `&mut SyncUnsafeCell<T>`. Previously, this returned an immutable
reference.

## Migration Guide

The function `bevy_utils::SyncUnsafeCell::get_mut` now returns a value
of type `&mut SyncUnsafeCell<T>`. Previously, this returned an immutable
reference.
2023-03-31 21:56:49 +00:00
..
macros chore: Release (#7920) 2023-03-06 05:13:36 +00:00
src Replace some unsafe system executor code with safe code (#8274) 2023-03-31 21:56:49 +00:00
Cargo.toml chore: Release (#7920) 2023-03-06 05:13:36 +00:00