1 /// \file 2 /// Definition of the ANTLR3 base tree. 3 /// 4 5 #ifndef _ANTLR3_BASE_TREE_H 6 #define _ANTLR3_BASE_TREE_H 7 8 // [The "BSD licence"] 9 // Copyright (c) 2005-2009 Jim Idle, Temporal Wave LLC 10 // http://www.temporal-wave.com 11 // http://www.linkedin.com/in/jimidle 12 // 13 // All rights reserved. 14 // 15 // Redistribution and use in source and binary forms, with or without 16 // modification, are permitted provided that the following conditions 17 // are met: 18 // 1. Redistributions of source code must retain the above copyright 19 // notice, this list of conditions and the following disclaimer. 20 // 2. Redistributions in binary form must reproduce the above copyright 21 // notice, this list of conditions and the following disclaimer in the 22 // documentation and/or other materials provided with the distribution. 23 // 3. The name of the author may not be used to endorse or promote products 24 // derived from this software without specific prior written permission. 25 // 26 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 27 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 28 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 30 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 31 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 32 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 35 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 36 37 #include <antlr3defs.h> 38 #include <antlr3collections.h> 39 #include <antlr3string.h> 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /// A generic tree implementation with no payload. You must subclass to 46 /// actually have any user data. ANTLR v3 uses a list of children approach 47 /// instead of the child-sibling approach in v2. A flat tree (a list) is 48 /// an empty node whose children represent the list. An empty (as in it does not 49 /// have payload itself), but non-null node is called "nil". 50 /// 51 typedef struct ANTLR3_BASE_TREE_struct 52 { 53 54 /// Implementers of this interface sometimes require a pointer to their selves. 55 /// 56 void * super; 57 58 /// Generic void pointer allows the grammar programmer to attach any structure they 59 /// like to a tree node, in many cases saving the need to create their own tree 60 /// and tree adaptors. ANTLR does not use this pointer, but will copy it for you and so on. 61 /// 62 void * u; 63 64 /// The list of all the children that belong to this node. They are not part of the node 65 /// as they belong to the common tree node that implements this. 66 /// 67 pANTLR3_VECTOR children; 68 69 /// This is used to store the current child index position while descending 70 /// and ascending trees as the tree walk progresses. 71 /// 72 ANTLR3_MARKER savedIndex; 73 74 /// A string factory to produce strings for toString etc 75 /// 76 pANTLR3_STRING_FACTORY strFactory; 77 78 /// A pointer to a function that returns the common token pointer 79 /// for the payload in the supplied tree. 80 /// 81 pANTLR3_COMMON_TOKEN (*getToken) (struct ANTLR3_BASE_TREE_struct * tree); 82 83 void (*addChild) (struct ANTLR3_BASE_TREE_struct * tree, void * child); 84 85 void (*addChildren) (struct ANTLR3_BASE_TREE_struct * tree, pANTLR3_LIST kids); 86 87 void (*createChildrenList) (struct ANTLR3_BASE_TREE_struct * tree); 88 89 void * (*deleteChild) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_UINT32 i); 90 91 void (*replaceChildren) (struct ANTLR3_BASE_TREE_struct * parent, ANTLR3_INT32 startChildIndex, ANTLR3_INT32 stopChildIndex, struct ANTLR3_BASE_TREE_struct * t); 92 93 void * (*dupNode) (struct ANTLR3_BASE_TREE_struct * dupNode); 94 95 void * (*dupTree) (struct ANTLR3_BASE_TREE_struct * tree); 96 97 ANTLR3_UINT32 (*getCharPositionInLine) (struct ANTLR3_BASE_TREE_struct * tree); 98 99 void * (*getChild) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_UINT32 i); 100 101 void (*setChildIndex) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_INT32 ); 102 103 ANTLR3_INT32 (*getChildIndex) (struct ANTLR3_BASE_TREE_struct * tree ); 104 105 ANTLR3_UINT32 (*getChildCount) (struct ANTLR3_BASE_TREE_struct * tree); 106 107 struct ANTLR3_BASE_TREE_struct * (*getParent) (struct ANTLR3_BASE_TREE_struct * tree); 108 109 void (*setParent) (struct ANTLR3_BASE_TREE_struct * tree, struct ANTLR3_BASE_TREE_struct * parent); 110 111 ANTLR3_UINT32 (*getType) (struct ANTLR3_BASE_TREE_struct * tree); 112 113 void * (*getFirstChildWithType) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_UINT32 type); 114 115 ANTLR3_UINT32 (*getLine) (struct ANTLR3_BASE_TREE_struct * tree); 116 117 pANTLR3_STRING (*getText) (struct ANTLR3_BASE_TREE_struct * tree); 118 119 ANTLR3_BOOLEAN (*isNilNode) (struct ANTLR3_BASE_TREE_struct * tree); 120 121 void (*setChild) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_UINT32 i, void * child); 122 123 pANTLR3_STRING (*toStringTree) (struct ANTLR3_BASE_TREE_struct * tree); 124 125 pANTLR3_STRING (*toString) (struct ANTLR3_BASE_TREE_struct * tree); 126 127 void (*freshenPACIndexesAll) (struct ANTLR3_BASE_TREE_struct * tree); 128 129 void (*freshenPACIndexes) (struct ANTLR3_BASE_TREE_struct * tree, ANTLR3_UINT32 offset); 130 131 void (*reuse) (struct ANTLR3_BASE_TREE_struct * tree); 132 133 void (*free) (struct ANTLR3_BASE_TREE_struct * tree); 134 135 } 136 ANTLR3_BASE_TREE; 137 138 #ifdef __cplusplus 139 } 140 #endif 141 142 143 #endif 144
