prost

Not to be too Rust evangelist here, but why the emphasis on reflection instead of further support for generics? On the Rust side, macros can[1] transform .proto files into data structure definitions at compile time, and instances of the structs passed around have the benefit of strong typing, code completion in editors, lints and tests can easily validate properties of protobuf objects and so on. And all without adding more codegen steps which is nice - the macros can replace a build system having to do codegen as a separate step. How often do you need to mutate any protocol buffer and remove (redact as they say) fields generating a completely invalid protocol buffer object? Will anything downstream match the ".proto" of an object that's missing a bunch of required fields? Wouldn't it be easier to just all of the sensitive data into an op