开始写代码STEP_3

#ifndef STMT__H_
#define STMT__H_
#include <stdio.h>
#include "Vector.h"
#include "Expression.h"
#include "CodeRepo.h"

typedef struct Stmt_t CStmt;

typedef struct Stmt_VMT...{
    void(*generate)(CStmt*, FILE*);
}CStmt_VMT;

struct Stmt_t...{
    const CStmt_VMT* vmt;
    int srcLineNo;
};

extern void CStmt_Initialize(CStmt*,int);

extern void CStmt_Generate(CStmt*, FILE*);

#define Stmt_Generate(this,arg) 
           (((CStmt*)this)->vmt->generate((CStmt*)(this),arg))
#endif

 

 

#include "Stmt.h"

static const CStmt_VMT vmt = ...{ CStmt_Generate };


void CStmt_Initialize(CStmt* this,int no)
...{
    ((CStmt*)this)->vmt = (const CStmt_VMT*)&vmt;
    this->srcLineNo = no;
}

void CStmt_Generate(CStmt *this, FILE* output)
...{
    
    
}

 

 

#include "IfStmt.h"

extern int subprog;

static const CIfStmt_VMT vmt = ...{CIfStmt_Generate};

void CIfStmt_Initialize(CIfStmt* this,int no,CExpression *cond, Vector* ifpart, Vector* elsepart)
...{
    CStmt_Initialize((CStmt*)this, no);
    ((CStmt*)(this))->vmt = (const CStmt_VMT*)&vmt;
    this->ifpart = ifpart;
    this->elspart = elsepart;
    this->condition = cond;
}

void CIfStmt_Generate(CIfStmt* this, FILE* output)
...{
    int i;
  if(subprog)...{
    fprintf(output, "setCursor2 %d ", ((CStmt*)this)->srcLineNo - getRef(((CStmt*)this)->srcLineNo) + 1);
  }
  else...{
    fprintf(output, "setCursor %d ", ((CStmt*)this)->srcLineNo - getRef(((CStmt*)this)->srcLineNo));
  }
    
    fprintf(output, "If ");
    if(this->condition != NULL)...{
        Expression_Generate(this->condition, output);
    }
      fprintf(output, " Then ");
      
    if(this->ifpart != NULL)...{
        for(i = 0; i < size(this->ifpart); i++)...{
              Stmt_Generate(elementAt(this->ifpart, i), output);
        }
    }
    
    if(this->elspart != NULL)...{
        fprintf(output, "Else ");

        for(i = 0; i < size(this->elspart); i++)...{
            Stmt_Generate(elementAt(this->elspart, i), output);
        }
    }

  fprintf(output, "End If ");
}