# File lib/brakeman/processors/lib/rails2_route_processor.rb, line 291
  def process_call exp
    process_default exp

    if hash? exp.target and exp.method == :keys
      keys = get_keys exp.target
      exp.clear
      keys.each_with_index do |e,i|
        exp[i] = e
      end
    end
    exp
  end