public function parseMultitargetExpression() {
$targets = array();
while (true) {
$targets[] = $this
->parseExpression();
if (!$this->parser
->getStream()
->test(Twig_Token::PUNCTUATION_TYPE, ',')) {
break;
}
$this->parser
->getStream()
->next();
}
return new Twig_Node($targets);
}