Dynamic nested messages

[leerho]

I am new to proto buffers but it might be just what I need.  However, I have a couple of special requirements that I can't quite discern from the documentation:

• In my case the binary field layout is already defined. Think of it as a C struct, with packed primitives: bytes, ints, longs, double, arrays, etc.  Can I use Protobuf to describe that layout and read and write it as well?  To maintain compatibility of existing systems, I cannot have any compression or mangling of the struct layout.
• Is it possible to have dynamic nested messages?  For example, based on a decoded value of an outer message, the nested message could be of different types with completely different structures.

[Adam Cozzette]

Protobuf uses its own wire format, and unfortunately there is no way to make it conform to another binary format such as C struct layouts.

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[Derek Perez]

Wondering if Flatbuffers/Flexbuffers would be a better fit for your requirements?

https://google.github.io/flatbuffers/flexbuffers.html

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