# File lib/ruby2ruby.rb, line 83
  def process_args(exp)
    args = []

    until exp.empty? do
      arg = exp.shift
      case arg
      when Symbol then
        args << arg
      when Sexp then
        case arg.first
        when :lasgn then
          args << process(arg)
        else
          raise "unknown arg type #{arg.first.inspect}"
        end
      else
        raise "unknown arg type #{arg.inspect}"
      end
    end

    "(#{args.join ', '})"
  end