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# Objective `EntityHashMap` and `EntityHashSet` iterators do not implement `EntitySetIterator`. ## Solution Make them newtypes instead of aliases. The methods that create the iterators can then produce their own newtypes that carry the `Hasher` generic and implement `EntitySetIterator`. Functionality remains the same otherwise. There are some other small benefits, f.e. the removal of `with_hasher` associated functions, and the ability to implement more traits ourselves. `MainEntityHashMap` and `MainEntityHashSet` are currently left as the previous type aliases, because supporting general `TrustedEntityBorrow` hashing is more complex. However, it can also be done. ## Testing Pre-existing `EntityHashMap` tests. ## Migration Guide Users of `with_hasher` and `with_capacity_and_hasher` on `EntityHashMap`/`Set` must now use `new` and `with_capacity` respectively. If the non-newtyped versions are required, they can be obtained via `Deref`, `DerefMut` or `into_inner` calls. |
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Bevy PBR
