public override void Visit(OrSpecNode <T> orSpecNode)
{
var takenNot = _notNodes.Peek();
_notNodes.Push(takenNot);
base.Visit(orSpecNode);
var rightNode = _nodes.Pop();
var leftNode = _nodes.Pop();
_nodes.Push(takenNot
? (ISpecNode <T>) new AndSpecNode <T>(leftNode, rightNode)
: rightNode != orSpecNode.RightNode || leftNode != orSpecNode.LeftNode
? new OrSpecNode <T>(leftNode, rightNode)
: orSpecNode);
}
public virtual void Visit(OrSpecNode <T> orSpecNode)
{
Visit(orSpecNode.LeftNode);
Visit(orSpecNode.RightNode);
}