/**
  * Loads assets from the supplied node.
  *
  * @param \Twig_Node $node
  *
  * @return array An array of asset formulae indexed by name
  */
 private function loadNode(\Twig_Node $node)
 {
     $assets = array();
     if ($node instanceof OroAsseticNode) {
         $assets[$node->getNameUnCompress()] = $node;
     }
     foreach ($node as $child) {
         if ($child instanceof \Twig_Node) {
             $assets += $this->loadNode($child);
         }
     }
     return $assets;
 }