static void flattenAssignedNodes(Vector<Node*>& nodes, const HTMLSlotElement& slot)
{
auto* assignedNodes = slot.assignedNodes();
if (!assignedNodes) {
for (Node* child = slot.firstChild(); child; child = child->nextSibling()) {
if (is<HTMLSlotElement>(*child))
flattenAssignedNodes(nodes, downcast<HTMLSlotElement>(*child));
else if (is<Text>(*child) || is<Element>(*child))
nodes.append(child);
}
return;
}
for (Node* node : *assignedNodes) {
if (is<HTMLSlotElement>(*node))
flattenAssignedNodes(nodes, downcast<HTMLSlotElement>(*node));
else
nodes.append(node);
}
}
