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/* ATokPtr.h |
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* |
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* SOFTWARE RIGHTS |
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* |
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* We reserve no LEGAL rights to the Purdue Compiler Construction Tool |
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* Set (PCCTS) -- PCCTS is in the public domain. An individual or |
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* company may do whatever they wish with source code distributed with |
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* PCCTS or the code generated by PCCTS, including the incorporation of |
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* PCCTS, or its output, into commerical software. |
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* |
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* We encourage users to develop software with PCCTS. However, we do ask |
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* that credit is given to us for developing PCCTS. By "credit", |
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* we mean that if you incorporate our source code into one of your |
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* programs (commercial product, research project, or otherwise) that you |
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* acknowledge this fact somewhere in the documentation, research report, |
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* etc... If you like PCCTS and have developed a nice tool with the |
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* output, please mention that you developed it using PCCTS. In |
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* addition, we ask that this header remain intact in our source code. |
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* As long as these guidelines are kept, we expect to continue enhancing |
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* this system and expect to make other tools available as they are |
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* completed. |
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* |
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* ANTLR 1.33 |
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* Written by Russell Quong June 30, 1995 |
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* Adapted by Terence Parr to ANTLR stuff |
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* Parr Research Corporation |
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* with Purdue University and AHPCRC, University of Minnesota |
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* 1989-2000 |
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*/ |
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#ifndef ATokPtr_h |
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#define ATokPtr_h |
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#include "pcctscfg.h" |
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#include "pccts_stdio.h" |
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PCCTS_NAMESPACE_STD |
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// pointer to a reference counted object |
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// robust in that an unused ANTLRTokenPtr can point to NULL. |
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class ANTLRAbstractToken; |
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class DllExportPCCTS ANTLRTokenPtr { |
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public: |
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ANTLRTokenPtr(ANTLRAbstractToken *addr=NULL){ptr_ = addr; ref();} |
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ANTLRTokenPtr(const ANTLRTokenPtr &lhs) {ptr_ = lhs.ptr_; lhs.ref();} |
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~ANTLRTokenPtr(); |
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// use ANTLRTokenPtr as a pointer to ANTLRToken |
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// |
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// 8-Apr-97 MR1 Make operator -> a const member function |
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// as well as some other member functions |
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// |
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ANTLRAbstractToken *operator-> () const { return ptr_; } // MR1 |
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// |
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// 7-Apr-97 133MR1 |
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// Fix suggested by Andreas Magnusson |
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// (Andreas.Magnusson@mailbox.swipnet.se) |
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void operator = (const ANTLRTokenPtr & lhs); // MR1 |
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void operator = (ANTLRAbstractToken *addr); |
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int operator != (const ANTLRTokenPtr &q) const // MR1 // MR11 unsigned -> int |
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{ return this->ptr_ != q.ptr_; } |
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int operator == (const ANTLRTokenPtr &q) const // MR1 // MR11 unsigned -> int |
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{ return this->ptr_ == q.ptr_; } |
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int operator == (const ANTLRAbstractToken *addr) const // MR11 |
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{ return this->ptr_ == addr; } |
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int operator != (const ANTLRAbstractToken *addr) const // MR11 |
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{ return this->ptr_ != addr; } |
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void ref() const; |
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void deref(); |
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protected: |
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ANTLRAbstractToken *ptr_; |
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}; |
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//typedef ANTLRTokenPtr _ANTLRTokenPtr; |
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/* |
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* Since you cannot redefine operator->() to return one of the user's |
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* token object types, we must down cast. This is a drag. Here's |
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* a macro that helps. template: "mytoken(a-smart-ptr)->myfield". |
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*/ |
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#define mytoken(tk) ((ANTLRToken *)(tk.operator->())) |
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#endif |
