class Parser::Builders::Default

def send_unary_op_map(selector_t, arg_e) 

def send_unary_op_map(selector_t, arg_e)
  if arg_e.nil?
    expr_l = loc(selector_t)
  else
    expr_l = loc(selector_t).join(arg_e.loc.expression)
  end
  Source::Map::Send.new(nil, loc(selector_t),
                        nil, nil,
                        expr_l)
end