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Merge _Reflect and _WithRegistry commands #9680

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Merge _Reflect and _WithRegistry commands #9680

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nicopap
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@nicopap nicopap commented Sep 3, 2023

Objective

While code was already effectively deduplicated, this further deduplicates it, by removing InsertReflect and RemoveReflect, since they were just specialized version of their _WithRegistry counterparts.

Solution

  • Add ReadTypeRegistry trait, implemented for AsRef<TypeRegistry> and AppTypeRegistry
  • Add default impl for ReflectCommandExt insert_reflect and remove_reflect methods
  • Remove InsertReflect and RemoveReflect in favor of InsertReflectWithRegistry<AppTypeRegistry> and equivalent.

@nicopap nicopap added A-ECS Entities, components, systems, and events C-Code-Quality A section of code that is hard to understand or change A-Reflection Runtime information about types labels Sep 3, 2023
SkiFire13
SkiFire13 reviewed Sep 3, 2023
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alice-i-cecile
alice-i-cecile approved these changes Sep 6, 2023
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It's good to collapse these :) The AsDeref + ReadTypeRegistry gymnastics don't seem particularly worth it to me without more context, but I won't block over that.

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nicopap commented Sep 10, 2023

I would have preferred a solution where we implement AsRef<TypeRegistry> or Deref<Target=TypeRegistry> for AppTypeRegistry, but because of the lock guard from RwLock::read, it's not possible to do. I've had several attempts, but finally concluded it wasn't possible. So I created the ReadTypeRegistry trait. The GAT lifetime is because of this.

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Note that TypeRegistry itself does not implement AsRef<TypeRegistry> (in general AsRef<T> is not automatically implemented for T, but Borrow<T> is)

@nicopap
Merge InsertReflect and InsertReflectWithRegistry
3baade9 
While code was already effectively deduplicated, this further
deduplicates it, by removing InsertReflect and RemoveReflect, since they
were just specialized version of their _WithRegistry counterparts.

- Add ReadTypeRegistry trait, implemented for AsRef<TypeRegistry>
  and AppTypeRegistry
- Add default impl for ReflectCommandExt insert_reflect and
  remove_reflect methods
- Remove InsertReflect and RemoveReflect in favor of
  InsertReflectWithRegistry<AppTypeRegistry> and equivalent.
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