QtWebKit: QVariant and JS Array function arguments

class CWkStuff: public QObject
{
   Q_OBJECT

public:
   Q_INVOKABLE QVariant doSome(const QVariant &data) const
   {
      qDebug() << data;

      return data;
   };
}; // class

CWkStuff.doSome("hello");                 // done
CWkStuff.doSome({});                      // done
CWkStuff.doSome({a: 23, b: {q: [1, 2]}}); // done

CWkStuff.doSome([]);                      // FAILS!
   // incompatible type of argument(s) in call to doSome(); candidates were
   //     doSome(QVariant)

 Q_INVOKABLE QVariant doSome(const QVariantList &data) const

// in function 'convertValueToQVariant' we contain visited object some like that
    if (value.isObject()) {
        object = value.toObject(exec);
        if (visitedObjects->contains(object))
            return QVariant();

        visitedObjects->add(object);
    }

/* ... */

   // But checking for recursive call some like that

   if (type == Object) { // may be using `value.isObject()` here
       // Since we haven't really visited this object yet, we remove it
       visitedObjects->remove(object);
   }