class RuboCop::Cop::Performance::DoubleStartEndWith

def on_or(node)

def on_or(node)
  receiver,
  method,
  first_call_args,
  second_call_args = process_source(node)
  return unless receiver && second_call_args.all?(&:pure?)
  combined_args = combine_args(first_call_args, second_call_args)
  add_offense_for_double_call(node, receiver, method, combined_args)
end