42     protected function doEnterNode(Node $node, Environment $env)  argument
44         if ($node instanceof ModuleNode) {
50             return $node;
53             if ($node->getNodeTag() && !isset($this->tags[$node->getNodeTag()])) {
54                 $this->tags[$node->getNodeTag()] = $node;
58 …if ($node instanceof FilterExpression && !isset($this->filters[$node->getNode('filter')->getAttrib…
59                 $this->filters[$node->getNode('filter')->getAttribute('value')] = $node;
63 …if ($node instanceof FunctionExpression && !isset($this->functions[$node->getAttribute('name')])) {
64                 $this->functions[$node->getAttribute('name')] = $node;
68             if ($node instanceof RangeBinary && !isset($this->functions['range'])) {
69                 $this->functions['range'] = $node;
72             if ($node instanceof PrintNode) {
74                 $this->wrapNode($node, 'expr');
77             if ($node instanceof SetNode && !$node->getAttribute('capture')) {
83                 if ($node instanceof ConcatBinary) {
84                     $this->wrapNode($node, 'left');
85                     $this->wrapNode($node, 'right');
87                 if ($node instanceof FilterExpression) {
88                     $this->wrapNode($node, 'node');
89                     $this->wrapArrayNode($node, 'arguments');
91                 if ($node instanceof FunctionExpression) {
92                     $this->wrapArrayNode($node, 'arguments');
97         return $node;
100     protected function doLeaveNode(Node $node, Environment $env)  argument
102         if ($node instanceof ModuleNode) {
105 …$node->setNode('constructor_end', new Node([new CheckSecurityNode($this->filters, $this->tags, $th…
107             if ($node instanceof PrintNode || $node instanceof SetNode) {
112         return $node;
115     private function wrapNode(Node $node, $name)  argument
117         $expr = $node->getNode($name);
119             $node->setNode($name, new CheckToStringNode($expr));
123     private function wrapArrayNode(Node $node, $name)  argument
125         $args = $node->getNode($name);