Iterating over internal::registry_context elements

[batuhanbozyel]

For a long time, I have been using entt::registry's internal::registry_context to manage singleton components in my engine. For the serialization part, I need to iterate over all elements in that context, then run my serialization code. This is not a major issue, as I can workaround this by storing their id in a vector, then fetching each singleton component while serializing the scene, but I believe being able to iterate would still be beneficial

[skypjack]

What would be the expected outcome though? The registry context is a homogeneous container where the types are erased. At most, you could get a void * by iterating through them all. Or simply the list of IDs, leaving the user with the burden of making the correct requests.

[batuhanbozyel]

Thats pretty much my expectation. Best case scenario would be to get id and void* at the same time while iterating. My clang based reflection system can easily retrieve the type into from id. So it solves my issues