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5e777af5 | 1 | /* Demangler component interface functions. |
2afd3180 | 2 | Copyright (C) 2004-2017 Free Software Foundation, Inc. |
5e777af5 ILT |
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. |
5e777af5 ILT |
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 | |
500d7701 GDR |
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) | |
5e777af5 ILT |
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: |
5e777af5 ILT |
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: | |
5e777af5 ILT |
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: |
5e777af5 ILT |
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; |
5e777af5 ILT |
127 | |
128 | return 1; | |
129 | } | |
130 | ||
131 | /* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE. */ | |
132 | ||
133 | int | |
500d7701 | 134 | cplus_demangle_fill_builtin_type (struct demangle_component *p, |
d7cf8390 | 135 | const char *type_name) |
5e777af5 ILT |
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); |
5e777af5 ILT |
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) |
5e777af5 ILT |
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; |
5e777af5 ILT |
151 | return 1; |
152 | } | |
153 | } | |
154 | return 0; | |
155 | } | |
156 | ||
157 | /* Fill in a DEMANGLE_COMPONENT_OPERATOR. */ | |
158 | ||
159 | int | |
500d7701 GDR |
160 | cplus_demangle_fill_operator (struct demangle_component *p, |
161 | const char *opname, int args) | |
5e777af5 ILT |
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; |
5e777af5 ILT |
178 | return 1; |
179 | } | |
180 | } | |
181 | return 0; | |
182 | } | |
183 | ||
184 | /* Translate a mangled name into components. */ | |
185 | ||
186 | struct demangle_component * | |
500d7701 | 187 | cplus_demangle_v3_components (const char *mangled, int options, void **mem) |
5e777af5 ILT |
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); | |
5e777af5 ILT |
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 | } |