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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