| 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 | free (di.comps); |
| 210 | free (di.subs); |
| 211 | return NULL; |
| 212 | } |
| 213 | |
| 214 | if (! type) |
| 215 | dc = cplus_demangle_mangled_name (&di, 1); |
| 216 | else |
| 217 | dc = cplus_demangle_type (&di); |
| 218 | |
| 219 | /* If DMGL_PARAMS is set, then if we didn't consume the entire |
| 220 | mangled string, then we didn't successfully demangle it. */ |
| 221 | if ((options & DMGL_PARAMS) != 0 && d_peek_char (&di) != '\0') |
| 222 | dc = NULL; |
| 223 | |
| 224 | free (di.subs); |
| 225 | |
| 226 | if (dc != NULL) |
| 227 | *mem = di.comps; |
| 228 | else |
| 229 | free (di.comps); |
| 230 | |
| 231 | return dc; |
| 232 | } |