I noticed earlier while playing around with this library that if a protobuf file namespace has reserved keywords, then a variables are generated with reserved keyword names. Importing the file then causes errors.

syntax = 'proto3';

package var.for.switch;

message Sampler {
	string sample = 1;
}

Compiling this and requiring it gives the following:

var var = {};
            ^^^
SyntaxError: Unexpected token var

To get around this, I simply prefixed the generated variable name with $, which seemed to be in keeping with the conventions of this library. These variables are generated within closures, so they are not assigned anywhere that they may be accessed by a consumer of the generated code.

I understand that this fix may be over-simplified, so I'm happy to work on a better solution than this. I also understand that there are no tests for this module yet, but if some were added, I'd be happy to contribute a test case for this.