# File lib/parser/builders/default.rb, line 721
    def objc_restarg(star_t, name=nil)
      if name.nil?
        n0(:restarg, arg_prefix_map(star_t))
      elsif name.type == :arg # regular restarg
        name.updated(:restarg, nil,
          { :location => name.loc.with_operator(loc(star_t)) })
      else # restarg with objc_kwarg inside
        n(:objc_restarg, [ name ],
          unary_op_map(star_t, name))
      end
    end