132             $node = $this->createNamespaceNode($id, $subdir);
135             if ($depth !== 0 && $this->applyRecursionDecision($node, $this->maxdepth - $depth)) {
136                 $this->createHierarchy($node, $dir . '/' . $subdir, $depth - 1);
140             $this->addNodeToHierarchy($parent, $node);
157             $node = new WikiStartpage($id, $title, $ns);
159             $node = new WikiNamespace($id, $title);
161         return $node;
197      * @param AbstractNode $node Node to add
200     protected function addNodeToHierarchy(AbstractNode $parent, AbstractNode $node): void  argument
202         $node->setParent($parent); // set the parent even when not added, yet
203         $node = $this->applyNodeProcessor($node);
204         if ($node instanceof AbstractNode) {
205             $parent->addChild($node);
240     protected function applyRecursionDecision(AbstractNode $node, int $depth): bool  argument
243         if (!$this->hasNotFlag(self::FLAG_KEEP_HIDDEN) && isHiddenPage($node->getId())) {
246         return parent::applyRecursionDecision($node, $depth);
250     protected function applyNodeProcessor(AbstractNode $node): ?AbstractNode  argument
253         if (!$this->hasNotFlag(self::FLAG_KEEP_HIDDEN) && isHiddenPage($node->getId())) {
256         return parent::applyNodeProcessor($node);