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5e777af5 1/* Demangler component interface functions.
2afd3180 2 Copyright (C) 2004-2017 Free Software Foundation, Inc.
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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
ee58dffd 28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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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
58int
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GDR
59cplus_demangle_fill_component (struct demangle_component *p,
60 enum demangle_component_type type,
61 struct demangle_component *left,
62 struct demangle_component *right)
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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:
d4f3ce5c 72 case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
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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:
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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:
921da198 113 case DEMANGLE_COMPONENT_CONVERSION:
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114 if (right != NULL)
115 return 0;
116 break;
117
118 default:
119 /* Other types do not use subtrees. */
120 return 0;
121 }
122
123 p->type = type;
124 p->u.s_binary.left = left;
125 p->u.s_binary.right = right;
a46586c3 126 p->d_printing = 0;
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127
128 return 1;
129}
130
131/* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE. */
132
133int
500d7701 134cplus_demangle_fill_builtin_type (struct demangle_component *p,
d7cf8390 135 const char *type_name)
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136{
137 int len;
138 unsigned int i;
139
d7cf8390 140 if (p == NULL || type_name == NULL)
5e777af5 141 return 0;
d7cf8390 142 len = strlen (type_name);
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143 for (i = 0; i < D_BUILTIN_TYPE_COUNT; ++i)
144 {
145 if (len == cplus_demangle_builtin_types[i].len
d7cf8390 146 && strcmp (type_name, cplus_demangle_builtin_types[i].name) == 0)
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147 {
148 p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
149 p->u.s_builtin.type = &cplus_demangle_builtin_types[i];
a46586c3 150 p->d_printing = 0;
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151 return 1;
152 }
153 }
154 return 0;
155}
156
157/* Fill in a DEMANGLE_COMPONENT_OPERATOR. */
158
159int
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160cplus_demangle_fill_operator (struct demangle_component *p,
161 const char *opname, int args)
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162{
163 int len;
164 unsigned int i;
165
166 if (p == NULL || opname == NULL)
167 return 0;
168 len = strlen (opname);
169 for (i = 0; cplus_demangle_operators[i].name != NULL; ++i)
170 {
171 if (len == cplus_demangle_operators[i].len
172 && args == cplus_demangle_operators[i].args
173 && strcmp (opname, cplus_demangle_operators[i].name) == 0)
174 {
175 p->type = DEMANGLE_COMPONENT_OPERATOR;
176 p->u.s_operator.op = &cplus_demangle_operators[i];
a46586c3 177 p->d_printing = 0;
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178 return 1;
179 }
180 }
181 return 0;
182}
183
184/* Translate a mangled name into components. */
185
186struct demangle_component *
500d7701 187cplus_demangle_v3_components (const char *mangled, int options, void **mem)
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188{
189 size_t len;
190 int type;
191 struct d_info di;
192 struct demangle_component *dc;
193
194 len = strlen (mangled);
195
196 if (mangled[0] == '_' && mangled[1] == 'Z')
197 type = 0;
198 else
199 {
200 if ((options & DMGL_TYPES) == 0)
201 return NULL;
202 type = 1;
203 }
204
205 cplus_demangle_init_info (mangled, options, len, &di);
206
207 di.comps = ((struct demangle_component *)
208 malloc (di.num_comps * sizeof (struct demangle_component)));
209 di.subs = ((struct demangle_component **)
210 malloc (di.num_subs * sizeof (struct demangle_component *)));
211 if (di.comps == NULL || di.subs == NULL)
212 {
04695783
JM
213 free (di.comps);
214 free (di.subs);
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215 return NULL;
216 }
217
218 if (! type)
219 dc = cplus_demangle_mangled_name (&di, 1);
220 else
221 dc = cplus_demangle_type (&di);
222
223 /* If DMGL_PARAMS is set, then if we didn't consume the entire
224 mangled string, then we didn't successfully demangle it. */
225 if ((options & DMGL_PARAMS) != 0 && d_peek_char (&di) != '\0')
226 dc = NULL;
227
228 free (di.subs);
229
230 if (dc != NULL)
231 *mem = di.comps;
232 else
233 free (di.comps);
234
235 return dc;
236}