/**
  * @param \Twig_Token $token
  * @return array
  */
 protected function parseArguments(\Twig_Token $token)
 {
     $stream = $this->parser->getStream();
     $location = null;
     if ($stream->nextIf(\Twig_Token::OPERATOR_TYPE, 'in')) {
         $location = $this->parser->getExpressionParser()->parseExpression();
     } else {
         $lineno = $token->getLine();
         $location = new \Twig_Node_Expression_Constant('head', $lineno);
     }
     if ($stream->nextIf(\Twig_Token::NAME_TYPE, 'with')) {
         $variables = $this->parser->getExpressionParser()->parseExpression();
     } else {
         $lineno = $token->getLine();
         $variables = new \Twig_Node_Expression_Array([], $lineno);
         $variables->setAttribute('priority', 0);
     }
     $stream->expect(\Twig_Token::BLOCK_END_TYPE);
     return [$location, $variables];
 }