PassRefPtrWillBeRawPtr<LabelsNodeList> LabelableElement::labels() { if (!supportLabels()) return nullptr; return ensureCachedCollection<LabelsNodeList>(LabelsNodeListType); }
PassRefPtr<NodeList> LabelableElement::labels() { if (!supportLabels()) return 0; return ensureRareData().ensureNodeLists().addCacheWithAtomicName<LabelsNodeList>(*this, starAtom); }