source: liacs/coco/assignment4/Symbol.h@ 422

/*

 * Symbol.h

 * 

 * This file contains the declaration of the "Symbol" abstract

 * data structure. It is part of the assignment for the Compiler Construction

 * course at the Leiden Institute of Advanced Computer Science (LIACS), Leiden

 * University.

 */



#ifndef _SYMBOL_H_

#define _SYMBOL_H_



#include <string>

#include <vector>

#include <cstdio>



#include "types.h"



using namespace std;



// The base class for Symbols

class Symbol {

  public:

    // Constructor/Destructor

    Symbol (void);

    virtual ~Symbol (void);



    // Set the identifier text

    void SetName (string name);



    // Get the identifier text

    string GetName (void);



    // Set declaration line

    void SetLine (int line);



    // Get declaration line

    int GetLine (void);



    // Set return type

    void SetReturnType (ReturnType type);



    // Get return type

    ReturnType GetReturnType (void);



    // Set symbol type

    void SetSymbolType (SymbolType type);



    // Get symbol type

    SymbolType GetSymbolType (void);



    // Get offset (used during code generation)

    int GetOffset();

    

    // Set offset (used during code generation)

    void SetOffset(int offset);

    

    // Dump the contents

    virtual void Dump (FILE * file, int indent);



    // Virtuals (empty for this base class)

    virtual void AddParameter (Symbol * symbol);

    virtual int GetParameterCount (void);

    virtual Symbol * GetParameter (unsigned int num);



  private:

    string myName;

    int myLine;

    ReturnType myReturnType;

    SymbolType mySymbolType;

    int myOffset;

};//Symbol







// Extended symbol class for functions and procedures

class Symbol_Subprogram : public Symbol {

  public:

    // Destructor

    ~Symbol_Subprogram (void);



    // Add a parameter to the end of the parameter list

    void AddParameter (Symbol * symbol);



    // Get number of parameters

    int GetParameterCount (void);



    // Get the num-th argument

    Symbol * GetParameter (unsigned int num);



    // Dump

    void Dump (FILE * file, int indent);



  private:

    vector<Symbol *> parameters;

};//Symbol_Subprogram



#endif