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comparison libiberty/cp-demint.c @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* Demangler component interface functions.
2 Copyright (C) 2004 Free Software Foundation, Inc.
3 Written by Ian Lance Taylor <ian@wasabisystems.com>.
4
5 This file is part of the libiberty library, which is part of GCC.
6
7 This file is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 In addition to the permissions in the GNU General Public License, the
13 Free Software Foundation gives you unlimited permission to link the
14 compiled version of this file into combinations with other programs,
15 and to distribute those combinations without any restriction coming
16 from the use of this file. (The General Public License restrictions
17 do apply in other respects; for example, they cover modification of
18 the file, and distribution when not linked into a combined
19 executable.)
20
21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
25
26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
29 */
30
31 /* This file implements a few interface functions which are provided
32 for use with struct demangle_component trees. These functions are
33 declared in demangle.h. These functions are closely tied to the
34 demangler code in cp-demangle.c, and other interface functions can
35 be found in that file. We put these functions in a separate file
36 because they are not needed by the demangler, and so we avoid
37 having them pulled in by programs which only need the
38 demangler. */
39
40 #ifdef HAVE_CONFIG_H
41 #include "config.h"
42 #endif
43
44 #ifdef HAVE_STDLIB_H
45 #include <stdlib.h>
46 #endif
47 #ifdef HAVE_STRING_H
48 #include <string.h>
49 #endif
50
51 #include "ansidecl.h"
52 #include "libiberty.h"
53 #include "demangle.h"
54 #include "cp-demangle.h"
55
56 /* Fill in most component types. */
57
58 int
59 cplus_demangle_fill_component (struct demangle_component *p,
60 enum demangle_component_type type,
61 struct demangle_component *left,
62 struct demangle_component *right)
63 {
64 if (p == NULL)
65 return 0;
66 switch (type)
67 {
68 case DEMANGLE_COMPONENT_QUAL_NAME:
69 case DEMANGLE_COMPONENT_LOCAL_NAME:
70 case DEMANGLE_COMPONENT_TYPED_NAME:
71 case DEMANGLE_COMPONENT_TEMPLATE:
72 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
73 case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
74 case DEMANGLE_COMPONENT_FUNCTION_TYPE:
75 case DEMANGLE_COMPONENT_ARRAY_TYPE:
76 case DEMANGLE_COMPONENT_PTRMEM_TYPE:
77 case DEMANGLE_COMPONENT_ARGLIST:
78 case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
79 case DEMANGLE_COMPONENT_UNARY:
80 case DEMANGLE_COMPONENT_BINARY:
81 case DEMANGLE_COMPONENT_BINARY_ARGS:
82 case DEMANGLE_COMPONENT_TRINARY:
83 case DEMANGLE_COMPONENT_TRINARY_ARG1:
84 case DEMANGLE_COMPONENT_TRINARY_ARG2:
85 case DEMANGLE_COMPONENT_LITERAL:
86 case DEMANGLE_COMPONENT_LITERAL_NEG:
87 break;
88
89 /* These component types only have one subtree. */
90 case DEMANGLE_COMPONENT_VTABLE:
91 case DEMANGLE_COMPONENT_VTT:
92 case DEMANGLE_COMPONENT_TYPEINFO:
93 case DEMANGLE_COMPONENT_TYPEINFO_NAME:
94 case DEMANGLE_COMPONENT_TYPEINFO_FN:
95 case DEMANGLE_COMPONENT_THUNK:
96 case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
97 case DEMANGLE_COMPONENT_COVARIANT_THUNK:
98 case DEMANGLE_COMPONENT_JAVA_CLASS:
99 case DEMANGLE_COMPONENT_GUARD:
100 case DEMANGLE_COMPONENT_REFTEMP:
101 case DEMANGLE_COMPONENT_RESTRICT:
102 case DEMANGLE_COMPONENT_VOLATILE:
103 case DEMANGLE_COMPONENT_CONST:
104 case DEMANGLE_COMPONENT_RESTRICT_THIS:
105 case DEMANGLE_COMPONENT_VOLATILE_THIS:
106 case DEMANGLE_COMPONENT_CONST_THIS:
107 case DEMANGLE_COMPONENT_POINTER:
108 case DEMANGLE_COMPONENT_REFERENCE:
109 case DEMANGLE_COMPONENT_COMPLEX:
110 case DEMANGLE_COMPONENT_IMAGINARY:
111 case DEMANGLE_COMPONENT_VENDOR_TYPE:
112 case DEMANGLE_COMPONENT_CAST:
113 if (right != NULL)
114 return 0;
115 break;
116
117 default:
118 /* Other types do not use subtrees. */
119 return 0;
120 }
121
122 p->type = type;
123 p->u.s_binary.left = left;
124 p->u.s_binary.right = right;
125
126 return 1;
127 }
128
129 /* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE. */
130
131 int
132 cplus_demangle_fill_builtin_type (struct demangle_component *p,
133 const char *type_name)
134 {
135 int len;
136 unsigned int i;
137
138 if (p == NULL || type_name == NULL)
139 return 0;
140 len = strlen (type_name);
141 for (i = 0; i < D_BUILTIN_TYPE_COUNT; ++i)
142 {
143 if (len == cplus_demangle_builtin_types[i].len
144 && strcmp (type_name, cplus_demangle_builtin_types[i].name) == 0)
145 {
146 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
147 p->u.s_builtin.type = &cplus_demangle_builtin_types[i];
148 return 1;
149 }
150 }
151 return 0;
152 }
153
154 /* Fill in a DEMANGLE_COMPONENT_OPERATOR. */
155
156 int
157 cplus_demangle_fill_operator (struct demangle_component *p,
158 const char *opname, int args)
159 {
160 int len;
161 unsigned int i;
162
163 if (p == NULL || opname == NULL)
164 return 0;
165 len = strlen (opname);
166 for (i = 0; cplus_demangle_operators[i].name != NULL; ++i)
167 {
168 if (len == cplus_demangle_operators[i].len
169 && args == cplus_demangle_operators[i].args
170 && strcmp (opname, cplus_demangle_operators[i].name) == 0)
171 {
172 p->type = DEMANGLE_COMPONENT_OPERATOR;
173 p->u.s_operator.op = &cplus_demangle_operators[i];
174 return 1;
175 }
176 }
177 return 0;
178 }
179
180 /* Translate a mangled name into components. */
181
182 struct demangle_component *
183 cplus_demangle_v3_components (const char *mangled, int options, void **mem)
184 {
185 size_t len;
186 int type;
187 struct d_info di;
188 struct demangle_component *dc;
189
190 len = strlen (mangled);
191
192 if (mangled[0] == '_' && mangled[1] == 'Z')
193 type = 0;
194 else
195 {
196 if ((options & DMGL_TYPES) == 0)
197 return NULL;
198 type = 1;
199 }
200
201 cplus_demangle_init_info (mangled, options, len, &di);
202
203 di.comps = ((struct demangle_component *)
204 malloc (di.num_comps * sizeof (struct demangle_component)));
205 di.subs = ((struct demangle_component **)
206 malloc (di.num_subs * sizeof (struct demangle_component *)));
207 if (di.comps == NULL || di.subs == NULL)
208 {
209 if (di.comps != NULL)
210 free (di.comps);
211 if (di.subs != NULL)
212 free (di.subs);
213 return NULL;
214 }
215
216 if (! type)
217 dc = cplus_demangle_mangled_name (&di, 1);
218 else
219 dc = cplus_demangle_type (&di);
220
221 /* If DMGL_PARAMS is set, then if we didn't consume the entire
222 mangled string, then we didn't successfully demangle it. */
223 if ((options & DMGL_PARAMS) != 0 && d_peek_char (&di) != '\0')
224 dc = NULL;
225
226 free (di.subs);
227
228 if (dc != NULL)
229 *mem = di.comps;
230 else
231 free (di.comps);
232
233 return dc;
234 }