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/*****************************************************************************
 * Copyright (C) 1997-2010, Mark Hummel
 * This file is part of Vrq.
 *
 * Vrq 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.
 *
 * Vrq 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, 
 * Boston, MA  02110-1301  USA
 *****************************************************************************
 */
/******************************************************************************
 *
 *
 *         cdatatype.h
 *              - abstract class for data types 
 *
 *
 ******************************************************************************
 */

#ifndef CDATATYPE_H
#define CDATATYPE_H

#include <list>
#include "cobject.h"

class CNode;

enum VarDataType_t {
        eNO_VAR_TYPE = 0,
        eREAL,           
        eSHORTREAL,      
        eREALTIME,       
        eREG,            
        eTIME,           
        eLOGIC,          
        eINTEGER,        
        eBIT,            
        eINT,            
        eBYTE,           
        eSHORTINT,       
        eLONGINT,        
        eDEVENT,         
        eSTRUCT,         
        eUNION,          
        eUNION_TAGGED,   
        eENUM,           
        eCLASS,          
        ePROXY,          
};
#if defined CDATATYPE_CC

const char* varDataTypeName[] = {
        "",
        "real",
        "shortreal",
        "realtime",
        "reg",
        "time",
        "logic",
        "integer",
        "bit",
        "int",
        "byte",
        "shortint",
        "longint",
        "event",
        "struct",
        "union",
        "union tagged",
        "enum",
        "class",
        "proxy",
};
#else // CDATATYPE_CC
extern const char* varDataTypeName[];
#endif // CDATATYPE_CC

enum NodeType_t {
        eU,     
        eR,     
        eS,     
        eE,     
        eB      
};

class CDataType : public CObject
{
public:
private:
        int           const_;           
        VarDataType_t varDataType;      
        int numberOfPackedDimensions;   
        vector<CNode*> packedRange;     
public:
        CDataType( VarDataType_t t );
        CDataType( VarDataType_t t, list<CNode*> packedList );
        virtual CDataType* Clone( CObstack* heap ) = 0;
        virtual void SetVarDataType( VarDataType_t v ) { varDataType = v; }
        virtual VarDataType_t  GetVarDataType() const { return varDataType; }
        virtual void SetConst( int v ) { const_ = v; }
        virtual int  GetConst() const { return const_; }
        virtual int  GetTwoState() const = 0;
        virtual int  GetSigned() const = 0;
        virtual NodeType_t GetNodeType( void ) const = 0;
        virtual int  IsBaseWidthConstant( void ) const = 0;
        virtual int  IsBaseWidthVolatile( void ) const = 0;
        virtual int  IsBaseWidthEvaluateable( void ) const = 0;
        virtual INT32 GetBaseWidth( void ) const = 0;
        virtual CNode* GetBaseWidthExp() const = 0;
        virtual int IsScalar() const;
        virtual int IsVector() const = 0;
        virtual int IsPacked() const = 0;
        virtual int  IsPackedWidthConstant( void ) const;
        virtual int  IsPackedWidthVolatile( void ) const;
        virtual int  IsPackedWidthEvaluateable( void ) const;
        virtual CNode* GetPackedMsb() const;
        virtual CNode* GetPackedLsb() const;
        virtual CNode* GetPackedRange() const;
        virtual INT32 GetPackedWidth( void ) const;
        virtual CNode* GetPackedWidthExp() const;
        virtual int   PackedWidthDirection( void ) const;
        virtual INT32 GetNumberOfPackedDimensions( void ) const 
        { return numberOfPackedDimensions;}
        virtual CNode* GetPackedMsi( INT32 dim ) const; 
        virtual CNode* GetPackedLsi( INT32 dim ) const;
        virtual CNode*  GetPackedRange( INT32 dim ) const 
        { return packedRange[dim]; }


        virtual void Dump( FILE* f ) const = 0;
        virtual void    PreVisit1( int (*callback)(CNode*,void*), void* data );
        virtual void    PostVisit1( void (*callback)(CNode*,void*), void* data );
        virtual void PostSubVisit1( CNode* (*callback)(CNode*, void*), void* data );
protected:
        void Copy( CObstack* heap, const CDataType& o );
private:
        /*
         * disable copy constructors
         */
        CDataType( const CDataType& o );

};

#endif // CDATATYPE_H