protected static Proto parseProto(File file, ProtoModule module)
    {
        CachingProtoLoader loader = module.getCachingProtoLoader();
        if (loader == null)
            return ProtoUtil.parseProto(file);

        try
        {
            return loader.loadFrom(file, null);
        }
        catch (Exception e)
        {
            throw new RuntimeException(e);
        }
    }
Returns true if there was no previous formatter with the same name.
protostuff-compiler/src/main/java/io/protostuff/compiler/STCodeGenerator.java