Reflection and comptime goal

[oli-obk]

With the renewed general interest in reflection via the facet crate coinciding with my own experiments with reflection, and some discussions with bevy folk at the all hands, I think that this may be a good time to pursue more language reflection capabilities than size_of and align_of.

Rendered

[fu5ha]

Wanted to point out mirror-mirror as another prior art. We made it at Embark Studios for use in our Rust game engine. It's similar to Bevy reflect in many ways, with the most interesting differences being

• An owned opaque Value type which can be interacted with thru the same reflection apis
• key paths as a more ergonomic way to query thru layers of a reflected type