public void visitLogicalNotOperator(LogicalNotOperationNode node)
        {
            INode rhs = node.getChildren()[0];

            rhs.accept(this);
            bool value = !popBool();

            this.boolStack.Push(value);
        }
 public void visitLogicalNotOperator(LogicalNotOperationNode logicalNotOperationNode)
 {
     logicalNotOperationNode.getChildren()[0].accept(this);
 }