public function addChild(Node $node, $key = null)
{
if (!$node instanceof RootNode) {
throw new \InvalidArgumentException('ClassNode expects only RootNode children');
}
return parent::addChild($node, $key);
}
/**
* @param Node $node
* @param $for
*/
private function addFilterNode(Node $node, $for)
{
if (!$this->environment->hasFunction('filter_' . $for)) {
$for = $this->defaultAutofilterStrategy;
}
$node->addChild(new FunctionNode('filter_' . $for, [$node->getChild('expression')]), 'expression');
}
