/// <summary>
/// Visitor pattern method for ExceptOp
/// </summary>
/// <param name="op"> The ExceptOp being visited </param>
/// <param name="n"> The Node that references the Op </param>
public virtual void Visit(ExceptOp op, Node n)
{
VisitSetOp(op, n);
}
// <summary>
// Copies an ExceptOp
// </summary>
// <param name="op"> The Op to Copy </param>
// <param name="n"> The Node that references the Op </param>
// <returns> A copy of the original Node that references a copy of the original Op </returns>
public override Node Visit(ExceptOp op, Node n)
{
return CopySetOp(op, n);
}