whileStmt.h

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/*******************************************************************************
** Copyright (c) 2004 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: whileStmt.h,v $ $Revision: 1.7 $ $State: Exp $
*******************************************************************************/


#ifndef DtWhileStmt_H_
#define DtWhileStmt_H_

#include "vrfplan/rwCondExpr.h"
#include "vrfplan/simStatement.h"

#include <vlutil/vlNetTypes.h>

const char DtWhileStmtTypeName[] = "While";

class DtRwCondExpr;
class DtWhileBlock;
class DtSimCondExpr;


struct DtNetWhileStatement
{
   DtNetU16 myCondExprSize;            
   DtNetU8  myStatementCount;          
   DtNetU8  myCondExprType;            
   DtNetU16 myPadding1;                
   DtNetU16 myPadding2;                
};                                     

#include "vrfplan/vrfplanDefines.h"
class DT_DLL_vrfplan DtWhileStmt : public DtSimStatement
{
public:

   DtWhileStmt(DtReaderWriterRegistry* parentRegistry = NULL);

   DtWhileStmt(const DtWhileStmt& orig,
      DtReaderWriterRegistry* parentRegistry = NULL);

   virtual ~DtWhileStmt();

   DtWhileStmt& operator=(const DtWhileStmt& orig);

   virtual DtSimStatement* clone(
      DtReaderWriterRegistry* parentRegistry = NULL) const;

   virtual int type() const;

   virtual bool validate();

   virtual void execute(DtPlan& planContext);

   virtual int subBlockCount() const;
   virtual DtSimBlock* subBlock(int index);

   virtual DtString stringRep(int subBlockIndex = DtSR_STMT) const;

   virtual const DtSimCondExpr* condExpr() const;
   virtual void setCondExpr(DtSimCondExpr* arg);

   virtual DtWhileBlock* whileBlock() const;
   virtual void setWhileBlock(DtWhileBlock* arg);

   virtual int netRepSize() const;

   virtual bool setFromNet(const char* contentBuffer, 
      unsigned contentSize);

   virtual bool setToNet();

public:
   static DtSimStatement* creator(DtReaderWriterRegistry* parentRegistry=NULL);

protected:
   virtual bool compare(DtSimStatement* rhs);

protected:

   DtRwCondExpr myCondExpr;
   DtWhileBlock* myBlock;
};

#endif