class RuboCop::Cop::Lint::UselessAccessModifier

def check_new_visibility(node, unused, new_vis, cur_vis)
  # does this modifier just repeat the existing visibility?
  if new_vis == cur_vis
    add_offense(node, message: format(MSG, current: cur_vis)) do |corrector|
      autocorrect(corrector, node)
    end
  else
    # was the previous modifier never applied to any defs?
    if unused
      add_offense(unused, message: format(MSG, current: cur_vis)) do |corrector|
        autocorrect(corrector, unused)
      end
    end
    # once we have already warned about a certain modifier, don't
    # warn again even if it is never applied to any method defs
    unused = node
  end
  [new_vis, unused]
end