172   FSPermission::RadixTree::Node* current_node = root_node_;  in Lookup()  local
173   if (current_node->children.size() == 0) {  in Lookup()
177   unsigned int parent_node_prefix_len = current_node->prefix.length();  in Lookup()
182     if (parent_node_prefix_len == path_len && current_node->IsEndNode()) {  in Lookup()
186     auto node = current_node->NextNode(path, parent_node_prefix_len);  in Lookup()
191     current_node = node;  in Lookup()
192     parent_node_prefix_len += current_node->prefix.length();  in Lookup()
193     if (current_node->wildcard_child != nullptr &&  in Lookup()
201   FSPermission::RadixTree::Node* current_node = root_node_;  in Insert()  local
203   unsigned int parent_node_prefix_len = current_node->prefix.length();  in Insert()
212       current_node = current_node->CreateChild(node_path);  in Insert()
216       current_node = current_node->CreateWildcardChild();  in Insert()