pgLab/pglablib/sqlast/Node.h

#pragma once

#include <QString>
#include <stdexcept>
#include <typeinfo>

namespace sqlast {

    class NodeVisitor;

    class Node {
    public:
        Node();
        virtual ~Node() = default;

        virtual void Accept(NodeVisitor &visitor) = 0;
        /// Every derived class that has child nodes should override these
        /// to facilitate
//        virtual int ChildCount() const { return 0; }
//        virtual const Node* GetChild(int index) const { throw std::out_of_range("GetChild"); }

        virtual QString ToString() const;
    };

}
/*

- Node
  - INSERT
  - UPDATE
  - DELETE
  - SELECT
  - WITH
  - CTE


*/