Custom message factory

[bshastry]

Hello,

How could I get libprotobuf-mutator to use a custom message factory (https://developers.google.com/protocol-buffers/docs/reference/cpp/google.protobuf.message#MessageFactory) that I define for mutations? Could you suggest projects making use of such a thing?

The messages created by libprotobuf by default (factory = nullptr) are quite poor in quality.

[bshastry]

Perhaps, one way to expose this to external projects is to register message factories in the same way as post processors for a message type are currently registered.

[vitalybuka]

Is the problem just nullptr?
We maybe we can use generated_factory?