/**
* Normalizes a node: Converts builder objects to nodes.
*
* @param Node|Builder $node The node to normalize
*
* @return Node The normalized node
*/
protected function normalizeNode($node)
{
if ($node instanceof Builder) {
return $node->getNode();
} elseif ($node instanceof Node) {
return $node;
}
throw new \LogicException('Expected node or builder object');
}
