PNode.h

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//* -*- mode:C++; tab-width:4; c-basic-offset:4; indent-tabs-mode:nil -*- */
//    Name:       src/base/PNode.h
//    Purpose:    Primary data structure for code
//    Author:     Shane T. Mueller, Ph.D.
//    Copyright:  (c) 2003-2026 Shane T. Mueller <smueller@obereed.net>
//    License:    GPL 2
//
//
//
//     This file is part of the PEBL project.
//
//    PEBL is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    PEBL is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with PEBL; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#ifndef __PNODE_H__
#define __PNODE_H__
 
#include "Variant.h"         //This contains definition for enum VariantDataType
#include <string>
#include "../utility/Defs.h"
enum PNODE_TYPE {
    PEBL_UNDEFINED_NODE,
    PEBL_OP_NODE,
    PEBL_DATA_NODE
};
 
 
 
class PNode {
 
public:
 
    PNode();
 
    PNode(const PNode & pn);
    PNode(const std::string & filename, int linenumber);
 //   PNode (const PNode * pn);
    //    PNode(PNODE_TYPE type);
    PNode(PNODE_TYPE type, const std::string & filename, int linenumber);
    virtual ~PNode();
 
    PNODE_TYPE GetType() const {return mType;};
 
 
    //Overload of the << operator
    friend std::ostream& operator<<(std::ostream& out, const PNode & node );
 
    void SetFileInfo(const std::string & filename, int linenumber);
    std::string  GetFilename()const {return mSourceFile;};
    int GetLineNumber()const {return mLineNumber;};
    void SetFunctionName(const std::string &funcname);
    std::string GetFunctionName()const{return mFunctName;};
 
    virtual void DestroyChildren();
private:
 
protected:
 
    //Inheritable printing Method.
    virtual std::ostream& SendToStream(std::ostream& out)const;
 
 
    PNODE_TYPE mType;
 
 
    int mTrace;
 
 
    std::string  mSourceFile;
 
    int mLineNumber;
 
    std::string mFunctName;
};
 
 
 
class OpNode: public PNode
{
public:
    //Constructor
    //OpNode(int type, PNode *left, PNode *right);
    OpNode(int type, PNode *left, PNode *right,const  std::string & filename, int linenumber);
    OpNode(const OpNode &);
    virtual ~OpNode();
    OpNode operator = (const OpNode & op);
    int GetOp()const{return mOp;};
    std::string GetOpName() const;
 
    PNode*  GetLeft() const {return mLeft;};
    PNode*  GetRight() const{return mRight;};
 
    virtual void DestroyChildren();
    virtual void DestroyFunctionTree();
 
 
private:
protected:
 
    virtual std::ostream& SendToStream(std::ostream& out) const;
    int mOp;
 
    PNode *mLeft;
 
    PNode *mRight;
};
 
 
class DataNode: public PNode
{
public:
    //    DataNode(const Variant value);
    //    DataNode();
    //    DataNode(pInt ivalue);
    //    DataNode(pDouble fvalue);
    DataNode(const Variant value, const  std::string & filename, int linenumber);
    DataNode(const std::string & filename, int linenumber);
    DataNode(pInt ivalue, const std::string & filename, int linenumber);
    DataNode(pDouble fvalue, const std::string & filename, int linenumber);
 
 
    virtual ~DataNode();
    VariantDataType GetDataType()const{return mValue.GetDataType();};
 
    //GetValue() returns a const reference to mValue to avoid copy issues in Emscripten
    const Variant& GetValue()const{return mValue;};
 
 
 
private:
 
protected:
    virtual std::ostream& SendToStream(std::ostream& out) const;
 
 
    Variant mValue;
};
 
 
 
#endif