nikic / PHP-Parser

     * @return Node[] Traversed array of nodes

     */

    public function traverse(array $nodes) {

        foreach ($this->visitors as $visitor) {

            if (null !== $return = $visitor->beforeTraverse($nodes)) {

                $nodes = $return;

            }

        }

        $nodes = $this->traverseArray($nodes);

        $nodes = $this->traverseArray($nodes);

        foreach ($this->visitors as $visitor) {

            if (null !== $return = $visitor->afterTraverse($nodes)) {

                $nodes = $return;

            }

        }

        return $nodes;

    }