1 /* Demangler component interface functions. 2 Copyright (C) 2004 Free Software Foundation, Inc. 3 Written by Ian Lance Taylor <ian (at) 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 } 233
