41     protected function doEnterNode(Node $node, Environment $env)  argument
43         if ($node instanceof ModuleNode) {
49             return $node;
52             if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
53                 $this->tags[$node->getNodeTag()] = $node;
57 …if ($node instanceof FilterExpression && !isset($this->filters[$node->getNode('filter')->getAttrib…
58                 $this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
62 …if ($node instanceof FunctionExpression && !isset($this->functions[$node->getAttribute('name')])) {
63                 $this->functions[$node->getAttribute('name')] = $node;
67             if ($node instanceof RangeBinary && !isset($this->functions['range'])) {
68                 $this->functions['range'] = $node;
71             if ($node instanceof PrintNode) {
73                 $this->wrapNode($node, 'expr');
76             if ($node instanceof SetNode && !$node->getAttribute('capture')) {
82                 if ($node instanceof ConcatBinary) {
83                     $this->wrapNode($node, 'left');
84                     $this->wrapNode($node, 'right');
86                 if ($node instanceof FilterExpression) {
87                     $this->wrapNode($node, 'node');
88                     $this->wrapArrayNode($node, 'arguments');
90                 if ($node instanceof FunctionExpression) {
91                     $this->wrapArrayNode($node, 'arguments');
96         return $node;
99     protected function doLeaveNode(Node $node, Environment $env)  argument
101         if ($node instanceof ModuleNode) {
104 …$node->setNode('constructor_end', new Node([new CheckSecurityCallNode(), $node->getNode('construct…
105 …$node->setNode('class_end', new Node([new CheckSecurityNode($this->filters, $this->tags, $this->fu…
107             if ($node instanceof PrintNode || $node instanceof SetNode) {
112         return $node;
115     private function wrapNode(Node $node, string $name)  argument
117         $expr = $node->getNode($name);
119             $node->setNode($name, new CheckToStringNode($expr));
123     private function wrapArrayNode(Node $node, string $name)  argument
125         $args = $node->getNode($name);