class RuboCop::ProcessedSource

def parser_class(ruby_version)
  case ruby_version
  when 1.9
    require 'parser/ruby19'
    Parser::Ruby19
  when 2.0
    require 'parser/ruby20'
    Parser::Ruby20
  when 2.1
    require 'parser/ruby21'
    Parser::Ruby21
  when 2.2
    require 'parser/ruby22'
    Parser::Ruby22
  when 2.3
    require 'parser/ruby23'
    Parser::Ruby23
  else
    raise ArgumentError, "Unknown Ruby version: #{ruby_version.inspect}"
  end
end