param.h

来自「this is a lp0 compilator new」· C头文件 代码 · 共 74 行

//
// ********************************************************************
// *
// *    Author          : Gerald Carter
// *                      [e-mail]
// *    Filename        : param.h
// *    Date Created    : 961228
// *
// *    Description
// *    -------------
// *	This is the header file for a formalParameter class used by
// *	the activationRecord class found in activate.h.
// *
// *    -------------
// *    Modifications
// *    -------------
// *
// *******************************************************************
//

// INCLUDE FILES
#include <iostream.h>
#include "symbol.h"

// To prevent multiple inclusion
#ifndef _PARAM_H
#define _PARAM_H

// ##################################################################
// ## class paramEntry
// ##
class paramEntry {
   private :
      symbolNode		*symbol_entry,
				*actual;

   public :
      // Constructor and Destructor
      paramEntry ( void ) { symbol_entry = actual = 0; }
      ~paramEntry ( void ) {}

      // symbol_entry Methods
      symbolNode* SetSymbolPtr ( symbolNode *ptr )
         { symbol_entry = ptr; return ( symbol_entry ); }
      symbolNode* GetSymbolPtr ( void ) 
         { return ( symbol_entry ); }
      symbolNode* SetActual ( symbolNode *ptr )
         { actual = ptr; return ( actual ); }
      symbolNode* GetActual ( void )
         { return ( actual ); }

      // Overloaded operators
      friend ostream& operator<< ( ostream& S, const paramEntry& entry ) {
         S << "Symbol Entry : " << *( entry.symbol_entry )
           << "Actual : " << *( entry.actual );
         return ( S );
      }
      // These could be problematic as there is no checking to see if 
      // the pointers are actually pointing to something.
      int operator< ( const paramEntry& cmp ) 
         { return ( *symbol_entry < *( cmp.symbol_entry ) ); }
      int operator> ( const paramEntry& cmp )
         { return ( *symbol_entry > *( cmp.symbol_entry ) ); }
      int operator== ( const paramEntry& cmp )
         { return ( *symbol_entry == *( cmp.symbol_entry ) ); }
      paramEntry& operator= ( const paramEntry& );
};
 
#endif

//********** end of param.h ***************************************
//*****************************************************************