VR-Forces 4.0.4 Class Documentation: include/vrfplan/ifStmt.h Source File

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00001 /*********************************************************************
00002 ** Copyright (c) 1999 MaK Technologies, Inc.
00003 ** All rights reserved.
00004 *********************************************************************/
00005 /*********************************************************************
00006 ** $RCSfile: ifStmt.h,v $ $Revision: 1.18 $ $State: Exp $
00007 *********************************************************************/
00008 
00011 
00012 #ifndef DtIfStmt_H_
00013 #define DtIfStmt_H_
00014 
00015 class DtIfStmt;
00016 
00017 #include "vrfutil/condExpr.h"
00018 #include "vrfplan/rwCondExpr.h"
00019 #include "vrfplan/simStmt.h"
00020 #include <vlutil/vlNetTypes.h>
00021 
00022 const char DtIfStmtTypeName[] = "If";
00023 
00024 class DtRwCondExpr;
00025 class DtIfBlock;
00026 
00027 
00028 
00031 struct DtNetIfStatement
00032 {
00033    DtNetU16 myCondExprSize;            
00034    DtNetU8  myCondExprType;            
00035    DtNetU8  myThenBlockStatementCount; 
00036    DtNetU8  myElseBlockStatementCount; 
00037    DtNetU8  myPadding1;                
00038    DtNetU16 myPadding2;                
00039 };                                     
00040 
00049 #include "vrfplan/vrfplanDefines.h"
00050 class DT_DLL_vrfplan DtIfStmt : public DtSimStatement
00051 {
00052 public:
00053 
00056 
00058    DtIfStmt(DtReaderWriterRegistry* parentRegistry = NULL);
00059 
00061    DtIfStmt(const DtIfStmt& orig,
00062       DtReaderWriterRegistry* parentRegistry = NULL);
00063 
00065    virtual ~DtIfStmt();
00066 
00068    DtIfStmt& operator=(const DtIfStmt& orig);
00069 
00071 
00072    virtual DtSimStatement* clone(
00073       DtReaderWriterRegistry* parentRegistry = NULL) const;
00074 
00076    virtual int type() const;
00077 
00080    virtual void execute(DtPlan& planContext);
00081 
00084    virtual void step(DtPlan& planContext);
00085 
00087    virtual int subBlockCount() const;
00089    virtual DtSimBlock* subBlock(int index);
00090 
00101    virtual DtString stringRep(int subBlockIndex = DtSR_STMT) const;
00102 
00105    virtual void exitFromIf(DtPlan& planContext);
00106 
00108    virtual const DtSimCondExpr* condExpr() const;
00109    virtual void setCondExpr(DtSimCondExpr* arg);
00110 
00112    virtual DtIfBlock* thenBlock() const;
00113    virtual void setThenBlock(DtIfBlock* arg);
00114 
00116    virtual DtIfBlock* elseBlock() const;
00117    virtual void setElseBlock(DtIfBlock* arg);
00118 
00130    virtual int netRepSize() const;
00131 
00133    virtual bool setFromNet(const char* contentBuffer, 
00134       unsigned contentSize);
00135 
00147    virtual bool setToNet();
00148 
00149 public:
00150 
00151    static DtSimStatement * creator(DtReaderWriterRegistry* parentRegistry = NULL);
00152 
00153 protected:
00154    virtual bool compare(DtSimStatement* rhs);
00155 
00156 protected:
00157 
00158    DtRwCondExpr myCondExpr;
00159 
00162    bool myResult;
00163 
00164    DtIfBlock* myThenBlock;
00165    DtIfBlock* myElseBlock;
00166 };
00167 
00168 #endif