/* ATokPtr.h | |
* | |
* SOFTWARE RIGHTS | |
* | |
* We reserve no LEGAL rights to the Purdue Compiler Construction Tool | |
* Set (PCCTS) -- PCCTS is in the public domain. An individual or | |
* company may do whatever they wish with source code distributed with | |
* PCCTS or the code generated by PCCTS, including the incorporation of | |
* PCCTS, or its output, into commerical software. | |
* | |
* We encourage users to develop software with PCCTS. However, we do ask | |
* that credit is given to us for developing PCCTS. By "credit", | |
* we mean that if you incorporate our source code into one of your | |
* programs (commercial product, research project, or otherwise) that you | |
* acknowledge this fact somewhere in the documentation, research report, | |
* etc... If you like PCCTS and have developed a nice tool with the | |
* output, please mention that you developed it using PCCTS. In | |
* addition, we ask that this header remain intact in our source code. | |
* As long as these guidelines are kept, we expect to continue enhancing | |
* this system and expect to make other tools available as they are | |
* completed. | |
* | |
* ANTLR 1.33 | |
* Written by Russell Quong June 30, 1995 | |
* Adapted by Terence Parr to ANTLR stuff | |
* Parr Research Corporation | |
* with Purdue University and AHPCRC, University of Minnesota | |
* 1989-1998 | |
*/ | |
#ifndef ATokPtr_h | |
#define ATokPtr_h | |
#include "pcctscfg.h" | |
#include "pccts_stdio.h" | |
PCCTS_NAMESPACE_STD | |
// pointer to a reference counted object | |
// robust in that an unused ANTLRTokenPtr can point to NULL. | |
class ANTLRAbstractToken; | |
class DllExportPCCTS ANTLRTokenPtr { | |
public: | |
ANTLRTokenPtr(ANTLRAbstractToken *addr=NULL){ptr_ = addr; ref();} | |
ANTLRTokenPtr(const ANTLRTokenPtr &lhs) {ptr_ = lhs.ptr_; lhs.ref();} | |
~ANTLRTokenPtr(); | |
// use ANTLRTokenPtr as a pointer to ANTLRToken | |
// | |
// 8-Apr-97 MR1 Make operator -> a const member function | |
// as well as some other member functions | |
// | |
ANTLRAbstractToken *operator-> () const { return ptr_; } // MR1 | |
// | |
// 7-Apr-97 133MR1 | |
// Fix suggested by Andreas Magnusson | |
// (Andreas.Magnusson@mailbox.swipnet.se) | |
void operator = (const ANTLRTokenPtr & lhs); // MR1 | |
void operator = (ANTLRAbstractToken *addr); | |
int operator != (const ANTLRTokenPtr &q) const // MR1 // MR11 unsigned -> int | |
{ return this->ptr_ != q.ptr_; } | |
int operator == (const ANTLRTokenPtr &q) const // MR1 // MR11 unsigned -> int | |
{ return this->ptr_ == q.ptr_; } | |
int operator == (const ANTLRAbstractToken *addr) const // MR11 | |
{ return this->ptr_ == addr; } | |
int operator != (const ANTLRAbstractToken *addr) const // MR11 | |
{ return this->ptr_ != addr; } | |
void ref() const; | |
void deref(); | |
protected: | |
ANTLRAbstractToken *ptr_; | |
}; | |
//typedef ANTLRTokenPtr _ANTLRTokenPtr; | |
/* | |
* Since you cannot redefine operator->() to return one of the user's | |
* token object types, we must down cast. This is a drag. Here's | |
* a macro that helps. template: "mytoken(a-smart-ptr)->myfield". | |
*/ | |
#define mytoken(tk) ((ANTLRToken *)(tk.operator->())) | |
#endif |