I've always written non-generic code generators when dealing with a specific protocols that havelots of special case packages and inter-dependencies between dif

I've always written non-generic code generators when dealing with a specific protocols that havelots of special case packages and inter-dependencies between different fields of a packet and the length and/or availability of other fields. With generic approaches, I've always run into some specific constraint that could not be expressed declaratively, but I'll definitely look at this.