* @todo Implémenter cette méthode abstrasy.PCFx
*/
public Node eval(Node startAt) throws Exception {
startAt.isGoodArgsCnt(2, 3);
Node xnode = startAt.getSubNode(1,Node.VTYPE_VALUABLE);
return xnode.toSerialized(startAt.size() == 3 ? startAt.getSubNode(2, Node.TYPE_CLIST): Node.createCList());
}
}