class RuboCop::Cop::Style::QuotedSymbols

def on_sym(node)
  return unless quoted?(node)
  message = style == :single_quotes ? MSG_SINGLE : MSG_DOUBLE
  if wrong_quotes?(node)
    add_offense(node, message: message) do |corrector|
      opposite_style_detected
      autocorrect(corrector, node)
    end
  else
    correct_style_detected
  end
end