Add in the 1st version of ECP.

[mirror_edk2.git] / EdkCompatibilityPkg / Other / Maintained / Tools / Pccts / h / ATokPtr.h

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