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# Objective The `generate_composite_uuid` utility function hidden in `bevy_reflect::__macro_exports` could be generally useful to users. For example, I previously relied on `Hash` to generate a `u64` to create a deterministic `HandleId`. In v0.12, `HandleId` has been replaced by `AssetId` which now requires a `Uuid`, which I could generate with this function. ## Solution Relocate `generate_composite_uuid` from `bevy_reflect::__macro_exports` to `bevy_utils::uuid`. It is still re-exported under `bevy_reflect::__macro_exports` so there should not be any breaking changes (although, users should generally not rely on pseudo-private/hidden modules like `__macro_exports`). I chose to keep it in `bevy_reflect::__macro_exports` so as to not clutter up our public API and to reduce the number of changes in this PR. We could have also marked the export as `#[doc(hidden)]`, but personally I like that we have a dedicated module for this (makes it clear what is public and what isn't when just looking at the macro code). --- ## Changelog - Moved `generate_composite_uuid` to `bevy_utils::uuid` and made it public - Note: it was technically already public, just hidden |
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