bevy/crates/bevy_ptr/src
James Liu dfc4f05c87 Ensure Ptr/PtrMut/OwningPtr are aligned when casting in debug builds (#7117)
# Objective
Improve safety testing when using `bevy_ptr` types. This is a follow-up to #7113.

## Solution
Add a debug-only assertion that pointers are aligned when casting to a concrete type. This should very quickly catch any unsoundness from unaligned pointers, even without miri. However, this can have a large negative perf impact on debug builds.

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## Changelog
Added: `Ptr::deref` will now panic in debug builds if the pointer is not aligned.
Added: `PtrMut::deref_mut` will now panic in debug builds if the pointer is not aligned.
Added: `OwningPtr::read` will now panic in debug builds if the pointer is not aligned.
Added: `OwningPtr::drop_as` will now panic in debug builds if the pointer is not aligned.
2023-01-11 23:12:20 +00:00
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lib.rs Ensure Ptr/PtrMut/OwningPtr are aligned when casting in debug builds (#7117) 2023-01-11 23:12:20 +00:00