projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 30fdf114 LG |
1 | /*\r |
| 2 | * ATokPtrImpl.h (formerly ATokPtr.cpp)\r | |
| 3 | *\r | |
| 4 | * This is #included in ATokBuffer.cpp for historical reasons.\r | |
| 5 | * It has been renamed because of problems with the .cpp extension\r | |
| 6 | * when used with IDE.\r | |
| 7 | *\r | |
| 8 | *\r | |
| 9 | * ANTLRToken MUST be defined before entry to this file.\r | |
| 10 | *\r | |
| 11 | * SOFTWARE RIGHTS\r | |
| 12 | *\r | |
| 13 | * We reserve no LEGAL rights to the Purdue Compiler Construction Tool\r | |
| 14 | * Set (PCCTS) -- PCCTS is in the public domain. An individual or\r | |
| 15 | * company may do whatever they wish with source code distributed with\r | |
| 16 | * PCCTS or the code generated by PCCTS, including the incorporation of\r | |
| 17 | * PCCTS, or its output, into commerical software.\r | |
| 18 | *\r | |
| 19 | * We encourage users to develop software with PCCTS. However, we do ask\r | |
| 20 | * that credit is given to us for developing PCCTS. By "credit",\r | |
| 21 | * we mean that if you incorporate our source code into one of your\r | |
| 22 | * programs (commercial product, research project, or otherwise) that you\r | |
| 23 | * acknowledge this fact somewhere in the documentation, research report,\r | |
| 24 | * etc... If you like PCCTS and have developed a nice tool with the\r | |
| 25 | * output, please mention that you developed it using PCCTS. In\r | |
| 26 | * addition, we ask that this header remain intact in our source code.\r | |
| 27 | * As long as these guidelines are kept, we expect to continue enhancing\r | |
| 28 | * this system and expect to make other tools available as they are\r | |
| 29 | * completed.\r | |
| 30 | *\r | |
| 31 | * ANTLR 1.33\r | |
| 32 | * Written by Russell Quong June 30, 1995\r | |
| 33 | * Adapted by Terence Parr to ANTLR stuff\r | |
| 34 | * Parr Research Corporation\r | |
| 35 | * with Purdue University and AHPCRC, University of Minnesota\r | |
| 36 | * 1989-2000\r | |
| 37 | */\r | |
| 38 | \r | |
| 39 | #include "pcctscfg.h"\r | |
| 40 | \r | |
| 41 | PCCTS_NAMESPACE_STD\r | |
| 42 | \r | |
| 43 | #include "ATokPtr.h"\r | |
| 44 | \r | |
| 45 | void ANTLRTokenPtr::ref() const\r | |
| 46 | {\r | |
| 47 | if (ptr_ != NULL) {\r | |
| 48 | ptr_->ref();\r | |
| 49 | }\r | |
| 50 | }\r | |
| 51 | \r | |
| 52 | void ANTLRTokenPtr::deref()\r | |
| 53 | {\r | |
| 54 | if (ptr_ != NULL)\r | |
| 55 | {\r | |
| 56 | ptr_->deref();\r | |
| 57 | if ( ptr_->nref()==0 )\r | |
| 58 | {\r | |
| 59 | delete ptr_;\r | |
| 60 | ptr_ = NULL;\r | |
| 61 | }\r | |
| 62 | }\r | |
| 63 | }\r | |
| 64 | \r | |
| 65 | ANTLRTokenPtr::~ANTLRTokenPtr()\r | |
| 66 | {\r | |
| 67 | deref();\r | |
| 68 | }\r | |
| 69 | \r | |
| 70 | //\r | |
| 71 | // 8-Apr-97 MR1 Make operator -> a const member function\r | |
| 72 | // as weall as some other member functions\r | |
| 73 | //\r | |
| fef15ecd | 74 | ANTLRTokenPtr& ANTLRTokenPtr::operator = (const ANTLRTokenPtr & lhs) // MR1\r |
| 30fdf114 LG |
75 | {\r |
| 76 | lhs.ref(); // protect against "xp = xp"; ie same underlying object\r | |
| 77 | deref();\r | |
| 78 | ptr_ = lhs.ptr_;\r | |
| fef15ecd | 79 | return *this;\r |
| 30fdf114 LG |
80 | }\r |
| 81 | \r | |
| fef15ecd | 82 | ANTLRTokenPtr& ANTLRTokenPtr::operator = (ANTLRAbstractToken *addr)\r |
| 30fdf114 LG |
83 | {\r |
| 84 | if (addr != NULL) {\r | |
| 85 | addr->ref();\r | |
| 86 | }\r | |
| 87 | deref();\r | |
| 88 | ptr_ = addr;\r | |
| fef15ecd | 89 | return *this;\r |
| 30fdf114 | 90 | }\r |