class Protobuf::Generators::EnumGenerator

def allow_alias?
  descriptor.options.try(:allow_alias!) { false }
end

def build_value(enum_value_descriptor)
  name = enum_value_descriptor.name
  number = enum_value_descriptor.number
  return "define :#{name}, #{number}"
end

def compile
  run_once(:compile) do
    tags = []
    print_class(descriptor.name, :enum) do
      if allow_alias?
        puts "set_option :allow_alias"
        puts
      end
      descriptor.value.each do |enum_value_descriptor|
        tags << enum_value_descriptor.number
        puts build_value(enum_value_descriptor)
      end
    end
    unless allow_alias?
      self.class.validate_tags(fully_qualified_type_namespace, tags)
    end
  end
end