1 /* Abstract syntax tree 2 * 3 * SOFTWARE RIGHTS 4 * 5 * We reserve no LEGAL rights to the Purdue Compiler Construction Tool 6 * Set (PCCTS) -- PCCTS is in the public domain. An individual or 7 * company may do whatever they wish with source code distributed with 8 * PCCTS or the code generated by PCCTS, including the incorporation of 9 * PCCTS, or its output, into commerical software. 10 * 11 * We encourage users to develop software with PCCTS. However, we do ask 12 * that credit is given to us for developing PCCTS. By "credit", 13 * we mean that if you incorporate our source code into one of your 14 * programs (commercial product, research project, or otherwise) that you 15 * acknowledge this fact somewhere in the documentation, research report, 16 * etc... If you like PCCTS and have developed a nice tool with the 17 * output, please mention that you developed it using PCCTS. In 18 * addition, we ask that this header remain intact in our source code. 19 * As long as these guidelines are kept, we expect to continue enhancing 20 * this system and expect to make other tools available as they are 21 * completed. 22 * 23 * ANTLR 1.33 24 * Terence Parr 25 * Parr Research Corporation 26 * with Purdue University and AHPCRC, University of Minnesota 27 * 1989-2000 28 */ 29 30 #ifndef ASTBase_H 31 #define ASTBase_H 32 33 #include "pcctscfg.h" 34 35 #include "pccts_stdio.h" 36 #include "pccts_stdlib.h" 37 38 PCCTS_NAMESPACE_STD 39 40 #ifndef PCCTS_NOT_USING_SOR 41 #include "PCCTSAST.h" 42 #endif 43 44 /* 45 * Notes: 46 * 47 * To specify a copy constructor, subclass one of these classes and 48 * give the copy constructor. To use dup(), you must define shallowCopy(). 49 * shallowCopy() can use either a copy constructor or just copy the node 50 * itself. 51 */ 52 53 #ifdef PCCTS_NOT_USING_SOR 54 class DllExportPCCTS ASTBase { 55 #else 56 class DllExportPCCTS ASTBase : public PCCTS_AST { 57 #endif 58 59 protected: 60 ASTBase *_right, *_down; 61 62 public: 63 64 #ifdef PCCTS_NOT_USING_SOR right()65 ASTBase *right() { return _right; } down()66 ASTBase *down() { return _down; } setRight(ASTBase * t)67 void setRight(ASTBase *t) { _right = (ASTBase *)t; } setDown(ASTBase * t)68 void setDown(ASTBase *t) { _down = (ASTBase *)t; } 69 #else 70 PCCTS_AST *right() { return _right; } // define the SORCERER interface 71 PCCTS_AST *down() { return _down; } 72 void setRight(PCCTS_AST *t) { _right = (ASTBase *)t; } 73 void setDown(PCCTS_AST *t) { _down = (ASTBase *)t; } 74 #endif ASTBase()75 ASTBase() { _right = _down = NULL; } ~ASTBase()76 virtual ~ASTBase() { ; } 77 #ifndef PCCTS_NOT_USING_SOR 78 virtual ASTBase *dup(); 79 #endif 80 void destroy(); 81 void preorder(void* pData = NULL /* MR23 */); 82 static ASTBase *tmake(ASTBase *, ...); 83 static void link(ASTBase **, ASTBase **, ASTBase **); 84 void subchild(ASTBase **, ASTBase **, ASTBase **); 85 void subroot(ASTBase **, ASTBase **, ASTBase **); 86 virtual void preorder_action(void* /*pData*/ = NULL /* MR23 */) { ; } 87 virtual void preorder_before_action(void* /*pData*/ = NULL /* MR23 */) { /* MR23 */ printMessage(stdout, " ("); } 88 virtual void preorder_after_action(void* /*pData*/ = NULL /* MR23 */) { /* MR23 */ printMessage(stdout, " )"); } 89 virtual void panic(const char *msg); /* MR21 */ 90 virtual void reportOverwriteOfDownPointer(); /* MR21 */ 91 #ifdef PCCTS_NOT_USING_SOR 92 virtual int printMessage(FILE* pFile, const char* pFormat, ...); // MR23 93 #endif 94 }; 95 96 class DllExportPCCTS ASTDoublyLinkedBase : public ASTBase { 97 protected: 98 ASTDoublyLinkedBase *_left, *_up; 99 100 public: 101 void double_link(ASTBase *left, ASTBase *up); 102 103 #ifndef PCCTS_NOT_USING_SOR 104 virtual ASTBase *dup(); 105 #endif 106 107 #ifdef PCCTS_NOT_USING_SOR left()108 ASTBase *left() { return _left; } up()109 ASTBase *up() { return _up; } setLeft(ASTBase * t)110 void setLeft(ASTBase *t) { _left = (ASTDoublyLinkedBase *)t; } // MR6 setUp(ASTBase * t)111 void setUp(ASTBase *t) { _up = (ASTDoublyLinkedBase *)t; } // MR6 112 #else left()113 PCCTS_AST *left() { return _left; } up()114 PCCTS_AST *up() { return _up; } setLeft(PCCTS_AST * t)115 void setLeft(PCCTS_AST *t) { _left = (ASTDoublyLinkedBase *)t; } // MR6 setUp(PCCTS_AST * t)116 void setUp(PCCTS_AST *t) { _up = (ASTDoublyLinkedBase *)t; } // MR6 117 #endif 118 119 }; 120 121 class AST; // announce that this class will be coming along shortly 122 #endif 123