class RuboCop::Runner

def iterate_until_no_changes(source, offenses_by_iteration)
  # Keep track of the state of the source. If a cop modifies the source
  # and another cop undoes it producing identical source we have an
  # infinite loop.
  @processed_sources = []
  # It is also possible for a cop to keep adding indefinitely to a file,
  # making it bigger and bigger. If the inspection loop runs for an
  # excessively high number of iterations, this is likely happening.
  iterations = 0
  loop do
    check_for_infinite_loop(source, offenses_by_iteration)
    if (iterations += 1) > MAX_ITERATIONS
      raise InfiniteCorrectionLoop.new(source.path, offenses_by_iteration)
    end
    source = yield
    break unless source
  end
end