root/Zend/zend_constants.c

/* [<][>][^][v][top][bottom][index][help] */

DEFINITIONS

This source file includes following definitions.
  1. free_zend_constant
  2. copy_zend_constant
  3. zend_copy_constants
  4. clean_non_persistent_constant
  5. clean_non_persistent_constant_full
  6. clean_module_constant
  7. clean_module_constants
  8. zend_startup_constants
  9. zend_register_standard_constants
  10. zend_shutdown_constants
  11. clean_non_persistent_constants
  12. zend_register_null_constant
  13. zend_register_bool_constant
  14. zend_register_long_constant
  15. zend_register_double_constant
  16. zend_register_stringl_constant
  17. zend_register_string_constant
  18. zend_get_special_constant
  19. zend_get_constant_str
  20. zend_get_constant
  21. zend_get_constant_ex
  22. zend_quick_get_constant
  23. zend_hash_add_constant
  24. zend_register_constant

   1 /*
   2    +----------------------------------------------------------------------+
   3    | Zend Engine                                                          |
   4    +----------------------------------------------------------------------+
   5    | Copyright (c) 1998-2016 Zend Technologies Ltd. (http://www.zend.com) |
   6    +----------------------------------------------------------------------+
   7    | This source file is subject to version 2.00 of the Zend license,     |
   8    | that is bundled with this package in the file LICENSE, and is        |
   9    | available through the world-wide-web at the following url:           |
  10    | http://www.zend.com/license/2_00.txt.                                |
  11    | If you did not receive a copy of the Zend license and are unable to  |
  12    | obtain it through the world-wide-web, please send a note to          |
  13    | license@zend.com so we can mail you a copy immediately.              |
  14    +----------------------------------------------------------------------+
  15    | Authors: Andi Gutmans <andi@zend.com>                                |
  16    |          Zeev Suraski <zeev@zend.com>                                |
  17    +----------------------------------------------------------------------+
  18 */
  19 
  20 /* $Id$ */
  21 
  22 #include "zend.h"
  23 #include "zend_constants.h"
  24 #include "zend_exceptions.h"
  25 #include "zend_execute.h"
  26 #include "zend_variables.h"
  27 #include "zend_operators.h"
  28 #include "zend_globals.h"
  29 #include "zend_API.h"
  30 
  31 void free_zend_constant(zval *zv)
  32 {
  33         zend_constant *c = Z_PTR_P(zv);
  34 
  35         if (!(c->flags & CONST_PERSISTENT)) {
  36                 zval_dtor(&c->value);
  37         } else {
  38                 zval_internal_dtor(&c->value);
  39         }
  40         if (c->name) {
  41                 zend_string_release(c->name);
  42         }
  43         pefree(c, c->flags & CONST_PERSISTENT);
  44 }
  45 
  46 
  47 static void copy_zend_constant(zval *zv)
  48 {
  49         zend_constant *c = Z_PTR_P(zv);
  50 
  51         Z_PTR_P(zv) = pemalloc(sizeof(zend_constant), c->flags & CONST_PERSISTENT);
  52         memcpy(Z_PTR_P(zv), c, sizeof(zend_constant));
  53 
  54         c = Z_PTR_P(zv);
  55         c->name = zend_string_copy(c->name);
  56         if (!(c->flags & CONST_PERSISTENT)) {
  57                 zval_copy_ctor(&c->value);
  58         } else {
  59                 if (Z_TYPE(c->value) == IS_STRING) {
  60                         Z_STR(c->value) = zend_string_dup(Z_STR(c->value), 1);
  61                 }
  62         }
  63 }
  64 
  65 
  66 void zend_copy_constants(HashTable *target, HashTable *source)
  67 {
  68         zend_hash_copy(target, source, copy_zend_constant);
  69 }
  70 
  71 
  72 static int clean_non_persistent_constant(zval *zv)
  73 {
  74         zend_constant *c = Z_PTR_P(zv);
  75         return (c->flags & CONST_PERSISTENT) ? ZEND_HASH_APPLY_STOP : ZEND_HASH_APPLY_REMOVE;
  76 }
  77 
  78 
  79 static int clean_non_persistent_constant_full(zval *zv)
  80 {
  81         zend_constant *c = Z_PTR_P(zv);
  82         return (c->flags & CONST_PERSISTENT) ? 0 : 1;
  83 }
  84 
  85 
  86 static int clean_module_constant(zval *el, void *arg)
  87 {
  88         zend_constant *c = (zend_constant *)Z_PTR_P(el);
  89         int module_number = *(int *)arg;
  90 
  91         if (c->module_number == module_number) {
  92                 return 1;
  93         } else {
  94                 return 0;
  95         }
  96 }
  97 
  98 
  99 void clean_module_constants(int module_number)
 100 {
 101         zend_hash_apply_with_argument(EG(zend_constants), clean_module_constant, (void *) &module_number);
 102 }
 103 
 104 
 105 int zend_startup_constants(void)
 106 {
 107         EG(zend_constants) = (HashTable *) malloc(sizeof(HashTable));
 108 
 109         zend_hash_init(EG(zend_constants), 128, NULL, ZEND_CONSTANT_DTOR, 1);
 110         return SUCCESS;
 111 }
 112 
 113 
 114 
 115 void zend_register_standard_constants(void)
 116 {
 117         REGISTER_MAIN_LONG_CONSTANT("E_ERROR", E_ERROR, CONST_PERSISTENT | CONST_CS);
 118         REGISTER_MAIN_LONG_CONSTANT("E_RECOVERABLE_ERROR", E_RECOVERABLE_ERROR, CONST_PERSISTENT | CONST_CS);
 119         REGISTER_MAIN_LONG_CONSTANT("E_WARNING", E_WARNING, CONST_PERSISTENT | CONST_CS);
 120         REGISTER_MAIN_LONG_CONSTANT("E_PARSE", E_PARSE, CONST_PERSISTENT | CONST_CS);
 121         REGISTER_MAIN_LONG_CONSTANT("E_NOTICE", E_NOTICE, CONST_PERSISTENT | CONST_CS);
 122         REGISTER_MAIN_LONG_CONSTANT("E_STRICT", E_STRICT, CONST_PERSISTENT | CONST_CS);
 123         REGISTER_MAIN_LONG_CONSTANT("E_DEPRECATED", E_DEPRECATED, CONST_PERSISTENT | CONST_CS);
 124         REGISTER_MAIN_LONG_CONSTANT("E_CORE_ERROR", E_CORE_ERROR, CONST_PERSISTENT | CONST_CS);
 125         REGISTER_MAIN_LONG_CONSTANT("E_CORE_WARNING", E_CORE_WARNING, CONST_PERSISTENT | CONST_CS);
 126         REGISTER_MAIN_LONG_CONSTANT("E_COMPILE_ERROR", E_COMPILE_ERROR, CONST_PERSISTENT | CONST_CS);
 127         REGISTER_MAIN_LONG_CONSTANT("E_COMPILE_WARNING", E_COMPILE_WARNING, CONST_PERSISTENT | CONST_CS);
 128         REGISTER_MAIN_LONG_CONSTANT("E_USER_ERROR", E_USER_ERROR, CONST_PERSISTENT | CONST_CS);
 129         REGISTER_MAIN_LONG_CONSTANT("E_USER_WARNING", E_USER_WARNING, CONST_PERSISTENT | CONST_CS);
 130         REGISTER_MAIN_LONG_CONSTANT("E_USER_NOTICE", E_USER_NOTICE, CONST_PERSISTENT | CONST_CS);
 131         REGISTER_MAIN_LONG_CONSTANT("E_USER_DEPRECATED", E_USER_DEPRECATED, CONST_PERSISTENT | CONST_CS);
 132 
 133         REGISTER_MAIN_LONG_CONSTANT("E_ALL", E_ALL, CONST_PERSISTENT | CONST_CS);
 134 
 135         REGISTER_MAIN_LONG_CONSTANT("DEBUG_BACKTRACE_PROVIDE_OBJECT", DEBUG_BACKTRACE_PROVIDE_OBJECT, CONST_PERSISTENT | CONST_CS);
 136         REGISTER_MAIN_LONG_CONSTANT("DEBUG_BACKTRACE_IGNORE_ARGS", DEBUG_BACKTRACE_IGNORE_ARGS, CONST_PERSISTENT | CONST_CS);
 137         /* true/false constants */
 138         {
 139                 REGISTER_MAIN_BOOL_CONSTANT("TRUE", 1, CONST_PERSISTENT | CONST_CT_SUBST);
 140                 REGISTER_MAIN_BOOL_CONSTANT("FALSE", 0, CONST_PERSISTENT | CONST_CT_SUBST);
 141                 REGISTER_MAIN_BOOL_CONSTANT("ZEND_THREAD_SAFE", ZTS_V, CONST_PERSISTENT | CONST_CS);
 142                 REGISTER_MAIN_BOOL_CONSTANT("ZEND_DEBUG_BUILD", ZEND_DEBUG, CONST_PERSISTENT | CONST_CS);
 143         }
 144         REGISTER_MAIN_NULL_CONSTANT("NULL", CONST_PERSISTENT | CONST_CT_SUBST);
 145 }
 146 
 147 
 148 int zend_shutdown_constants(void)
 149 {
 150         zend_hash_destroy(EG(zend_constants));
 151         free(EG(zend_constants));
 152         return SUCCESS;
 153 }
 154 
 155 
 156 void clean_non_persistent_constants(void)
 157 {
 158         if (EG(full_tables_cleanup)) {
 159                 zend_hash_apply(EG(zend_constants), clean_non_persistent_constant_full);
 160         } else {
 161                 zend_hash_reverse_apply(EG(zend_constants), clean_non_persistent_constant);
 162         }
 163 }
 164 
 165 ZEND_API void zend_register_null_constant(const char *name, size_t name_len, int flags, int module_number)
 166 {
 167         zend_constant c;
 168 
 169         ZVAL_NULL(&c.value);
 170         c.flags = flags;
 171         c.name = zend_string_init(name, name_len, flags & CONST_PERSISTENT);
 172         c.module_number = module_number;
 173         zend_register_constant(&c);
 174 }
 175 
 176 ZEND_API void zend_register_bool_constant(const char *name, size_t name_len, zend_bool bval, int flags, int module_number)
 177 {
 178         zend_constant c;
 179 
 180         ZVAL_BOOL(&c.value, bval);
 181         c.flags = flags;
 182         c.name = zend_string_init(name, name_len, flags & CONST_PERSISTENT);
 183         c.module_number = module_number;
 184         zend_register_constant(&c);
 185 }
 186 
 187 ZEND_API void zend_register_long_constant(const char *name, size_t name_len, zend_long lval, int flags, int module_number)
 188 {
 189         zend_constant c;
 190 
 191         ZVAL_LONG(&c.value, lval);
 192         c.flags = flags;
 193         c.name = zend_string_init(name, name_len, flags & CONST_PERSISTENT);
 194         c.module_number = module_number;
 195         zend_register_constant(&c);
 196 }
 197 
 198 
 199 ZEND_API void zend_register_double_constant(const char *name, size_t name_len, double dval, int flags, int module_number)
 200 {
 201         zend_constant c;
 202 
 203         ZVAL_DOUBLE(&c.value, dval);
 204         c.flags = flags;
 205         c.name = zend_string_init(name, name_len, flags & CONST_PERSISTENT);
 206         c.module_number = module_number;
 207         zend_register_constant(&c);
 208 }
 209 
 210 
 211 ZEND_API void zend_register_stringl_constant(const char *name, size_t name_len, char *strval, size_t strlen, int flags, int module_number)
 212 {
 213         zend_constant c;
 214 
 215         ZVAL_NEW_STR(&c.value, zend_string_init(strval, strlen, flags & CONST_PERSISTENT));
 216         c.flags = flags;
 217         c.name = zend_string_init(name, name_len, flags & CONST_PERSISTENT);
 218         c.module_number = module_number;
 219         zend_register_constant(&c);
 220 }
 221 
 222 
 223 ZEND_API void zend_register_string_constant(const char *name, size_t name_len, char *strval, int flags, int module_number)
 224 {
 225         zend_register_stringl_constant(name, name_len, strval, strlen(strval), flags, module_number);
 226 }
 227 
 228 static zend_constant *zend_get_special_constant(const char *name, size_t name_len)
 229 {
 230         zend_constant *c;
 231         static char haltoff[] = "__COMPILER_HALT_OFFSET__";
 232 
 233         if (!EG(current_execute_data)) {
 234                 return NULL;
 235         } else if (name_len == sizeof("__COMPILER_HALT_OFFSET__")-1 &&
 236                   !memcmp(name, "__COMPILER_HALT_OFFSET__", sizeof("__COMPILER_HALT_OFFSET__")-1)) {
 237                 const char *cfilename;
 238                 zend_string *haltname;
 239                 size_t clen;
 240 
 241                 cfilename = zend_get_executed_filename();
 242                 clen = strlen(cfilename);
 243                 /* check for __COMPILER_HALT_OFFSET__ */
 244                 haltname = zend_mangle_property_name(haltoff,
 245                         sizeof("__COMPILER_HALT_OFFSET__") - 1, cfilename, clen, 0);
 246                 c = zend_hash_find_ptr(EG(zend_constants), haltname);
 247                 zend_string_free(haltname);
 248                 return c;
 249         } else {
 250                 return NULL;
 251         }
 252 }
 253 
 254 
 255 ZEND_API zval *zend_get_constant_str(const char *name, size_t name_len)
 256 {
 257         zend_constant *c;
 258         ALLOCA_FLAG(use_heap)
 259 
 260         if ((c = zend_hash_str_find_ptr(EG(zend_constants), name, name_len)) == NULL) {
 261                 char *lcname = do_alloca(name_len + 1, use_heap);
 262                 zend_str_tolower_copy(lcname, name, name_len);
 263                 if ((c = zend_hash_str_find_ptr(EG(zend_constants), lcname, name_len)) != NULL) {
 264                         if (c->flags & CONST_CS) {
 265                                 c = NULL;
 266                         }
 267                 } else {
 268                         c = zend_get_special_constant(name, name_len);
 269                 }
 270                 free_alloca(lcname, use_heap);
 271         }
 272 
 273         return c ? &c->value : NULL;
 274 }
 275 
 276 ZEND_API zval *zend_get_constant(zend_string *name)
 277 {
 278         zend_constant *c;
 279         ALLOCA_FLAG(use_heap)
 280 
 281         if ((c = zend_hash_find_ptr(EG(zend_constants), name)) == NULL) {
 282                 char *lcname = do_alloca(ZSTR_LEN(name) + 1, use_heap);
 283                 zend_str_tolower_copy(lcname, ZSTR_VAL(name), ZSTR_LEN(name));
 284                 if ((c = zend_hash_str_find_ptr(EG(zend_constants), lcname, ZSTR_LEN(name))) != NULL) {
 285                         if (c->flags & CONST_CS) {
 286                                 c = NULL;
 287                         }
 288                 } else {
 289                         c = zend_get_special_constant(ZSTR_VAL(name), ZSTR_LEN(name));
 290                 }
 291                 free_alloca(lcname, use_heap);
 292         }
 293 
 294         return c ? &c->value : NULL;
 295 }
 296 
 297 ZEND_API zval *zend_get_constant_ex(zend_string *cname, zend_class_entry *scope, zend_ulong flags)
 298 {
 299         zend_constant *c;
 300         const char *colon;
 301         zend_class_entry *ce = NULL;
 302         zend_string *class_name;
 303         const char *name = ZSTR_VAL(cname);
 304         size_t name_len = ZSTR_LEN(cname);
 305 
 306         /* Skip leading \\ */
 307         if (name[0] == '\\') {
 308                 name += 1;
 309                 name_len -= 1;
 310                 cname = NULL;
 311         }
 312 
 313         if ((colon = zend_memrchr(name, ':', name_len)) &&
 314             colon > name && (*(colon - 1) == ':')) {
 315                 int class_name_len = colon - name - 1;
 316                 size_t const_name_len = name_len - class_name_len - 2;
 317                 zend_string *constant_name = zend_string_init(colon + 1, const_name_len, 0);
 318                 char *lcname;
 319                 zval *ret_constant = NULL;
 320                 ALLOCA_FLAG(use_heap)
 321 
 322                 class_name = zend_string_init(name, class_name_len, 0);
 323                 lcname = do_alloca(class_name_len + 1, use_heap);
 324                 zend_str_tolower_copy(lcname, name, class_name_len);
 325                 if (!scope) {
 326                         if (EG(current_execute_data)) {
 327                                 scope = EG(scope);
 328                         } else {
 329                                 scope = CG(active_class_entry);
 330                         }
 331                 }
 332 
 333                 if (class_name_len == sizeof("self")-1 &&
 334                     !memcmp(lcname, "self", sizeof("self")-1)) {
 335                         if (UNEXPECTED(!scope)) {
 336                                 zend_throw_error(NULL, "Cannot access self:: when no class scope is active");
 337                                 return NULL;
 338                         }
 339                         ce = scope;
 340                 } else if (class_name_len == sizeof("parent")-1 &&
 341                            !memcmp(lcname, "parent", sizeof("parent")-1)) {
 342                         if (UNEXPECTED(!scope)) {
 343                                 zend_throw_error(NULL, "Cannot access parent:: when no class scope is active");
 344                                 return NULL;
 345                         } else if (UNEXPECTED(!scope->parent)) {
 346                                 zend_throw_error(NULL, "Cannot access parent:: when current class scope has no parent");
 347                                 return NULL;
 348                         } else {
 349                                 ce = scope->parent;
 350                         }
 351                 } else if (class_name_len == sizeof("static")-1 &&
 352                            !memcmp(lcname, "static", sizeof("static")-1)) {
 353                         ce = zend_get_called_scope(EG(current_execute_data));
 354                         if (UNEXPECTED(!ce)) {
 355                                 zend_throw_error(NULL, "Cannot access static:: when no class scope is active");
 356                                 return NULL;
 357                         }
 358                 } else {
 359                         ce = zend_fetch_class(class_name, flags);
 360                 }
 361                 free_alloca(lcname, use_heap);
 362                 if (ce) {
 363                         ret_constant = zend_hash_find(&ce->constants_table, constant_name);
 364                         if (ret_constant == NULL) {
 365                                 if ((flags & ZEND_FETCH_CLASS_SILENT) == 0) {
 366                                         zend_throw_error(NULL, "Undefined class constant '%s::%s'", ZSTR_VAL(class_name), ZSTR_VAL(constant_name));
 367                                         zend_string_release(class_name);
 368                                         zend_string_free(constant_name);
 369                                         return NULL;
 370                                 }
 371                         } else if (Z_ISREF_P(ret_constant)) {
 372                                 ret_constant = Z_REFVAL_P(ret_constant);
 373                         }
 374                 }
 375                 zend_string_release(class_name);
 376                 zend_string_free(constant_name);
 377                 if (ret_constant && Z_CONSTANT_P(ret_constant)) {
 378                         if (UNEXPECTED(zval_update_constant_ex(ret_constant, 1, ce) != SUCCESS)) {
 379                                 return NULL;
 380                         }
 381                 }
 382                 return ret_constant;
 383         }
 384 
 385         /* non-class constant */
 386         if ((colon = zend_memrchr(name, '\\', name_len)) != NULL) {
 387                 /* compound constant name */
 388                 int prefix_len = colon - name;
 389                 size_t const_name_len = name_len - prefix_len - 1;
 390                 const char *constant_name = colon + 1;
 391                 char *lcname;
 392                 size_t lcname_len;
 393                 ALLOCA_FLAG(use_heap)
 394 
 395                 lcname_len = prefix_len + 1 + const_name_len;
 396                 lcname = do_alloca(lcname_len + 1, use_heap);
 397                 zend_str_tolower_copy(lcname, name, prefix_len);
 398                 /* Check for namespace constant */
 399 
 400                 lcname[prefix_len] = '\\';
 401                 memcpy(lcname + prefix_len + 1, constant_name, const_name_len + 1);
 402 
 403                 if ((c = zend_hash_str_find_ptr(EG(zend_constants), lcname, lcname_len)) == NULL) {
 404                         /* try lowercase */
 405                         zend_str_tolower(lcname + prefix_len + 1, const_name_len);
 406                         if ((c = zend_hash_str_find_ptr(EG(zend_constants), lcname, lcname_len)) != NULL) {
 407                                 if ((c->flags & CONST_CS) != 0) {
 408                                         c = NULL;
 409                                 }
 410                         }
 411                 }
 412                 free_alloca(lcname, use_heap);
 413                 if (c) {
 414                         return &c->value;
 415                 }
 416                 /* name requires runtime resolution, need to check non-namespaced name */
 417                 if ((flags & IS_CONSTANT_UNQUALIFIED) != 0) {
 418                         return zend_get_constant_str(constant_name, const_name_len);
 419                 }
 420                 return NULL;
 421         }
 422 
 423         if (cname) {
 424                 return zend_get_constant(cname);
 425         } else {
 426                 return zend_get_constant_str(name, name_len);
 427         }
 428 }
 429 
 430 zend_constant *zend_quick_get_constant(const zval *key, zend_ulong flags)
 431 {
 432         zend_constant *c;
 433 
 434         if ((c = zend_hash_find_ptr(EG(zend_constants), Z_STR_P(key))) == NULL) {
 435                 key++;
 436                 if ((c = zend_hash_find_ptr(EG(zend_constants), Z_STR_P(key))) == NULL ||
 437                     (c->flags & CONST_CS) != 0) {
 438                         if ((flags & (IS_CONSTANT_IN_NAMESPACE|IS_CONSTANT_UNQUALIFIED)) == (IS_CONSTANT_IN_NAMESPACE|IS_CONSTANT_UNQUALIFIED)) {
 439                                 key++;
 440                                 if ((c = zend_hash_find_ptr(EG(zend_constants), Z_STR_P(key))) == NULL) {
 441                                     key++;
 442                                         if ((c = zend_hash_find_ptr(EG(zend_constants), Z_STR_P(key))) == NULL ||
 443                                             (c->flags & CONST_CS) != 0) {
 444 
 445                                                 key--;
 446                                                 c = NULL;
 447                                         }
 448                                 }
 449                         } else {
 450                                 key--;
 451                                 c = NULL;
 452                         }
 453                 }
 454         }
 455         return c;
 456 }
 457 
 458 static void* zend_hash_add_constant(HashTable *ht, zend_string *key, zend_constant *c)
 459 {
 460         void *ret;
 461         zend_constant *copy = pemalloc(sizeof(zend_constant), c->flags & CONST_PERSISTENT);
 462 
 463         memcpy(copy, c, sizeof(zend_constant));
 464         ret = zend_hash_add_ptr(ht, key, copy);
 465         if (!ret) {
 466                 pefree(copy, c->flags & CONST_PERSISTENT);
 467         }
 468         return ret;
 469 }
 470 
 471 ZEND_API int zend_register_constant(zend_constant *c)
 472 {
 473         zend_string *lowercase_name = NULL;
 474         zend_string *name;
 475         int ret = SUCCESS;
 476 
 477 #if 0
 478         printf("Registering constant for module %d\n", c->module_number);
 479 #endif
 480 
 481         if (!(c->flags & CONST_CS)) {
 482                 lowercase_name = zend_string_alloc(ZSTR_LEN(c->name), c->flags & CONST_PERSISTENT);
 483                 zend_str_tolower_copy(ZSTR_VAL(lowercase_name), ZSTR_VAL(c->name), ZSTR_LEN(c->name));
 484                 lowercase_name = zend_new_interned_string(lowercase_name);
 485                 name = lowercase_name;
 486         } else {
 487                 char *slash = strrchr(ZSTR_VAL(c->name), '\\');
 488                 if (slash) {
 489                         lowercase_name = zend_string_init(ZSTR_VAL(c->name), ZSTR_LEN(c->name), c->flags & CONST_PERSISTENT);
 490                         zend_str_tolower(ZSTR_VAL(lowercase_name), slash - ZSTR_VAL(c->name));
 491                         lowercase_name = zend_new_interned_string(lowercase_name);
 492                         name = lowercase_name;
 493                 } else {
 494                         name = c->name;
 495                 }
 496         }
 497 
 498         /* Check if the user is trying to define the internal pseudo constant name __COMPILER_HALT_OFFSET__ */
 499         if ((ZSTR_LEN(c->name) == sizeof("__COMPILER_HALT_OFFSET__")-1
 500                 && !memcmp(ZSTR_VAL(name), "__COMPILER_HALT_OFFSET__", sizeof("__COMPILER_HALT_OFFSET__")-1))
 501                 || zend_hash_add_constant(EG(zend_constants), name, c) == NULL) {
 502 
 503                 /* The internal __COMPILER_HALT_OFFSET__ is prefixed by NULL byte */
 504                 if (ZSTR_VAL(c->name)[0] == '\0' && ZSTR_LEN(c->name) > sizeof("\0__COMPILER_HALT_OFFSET__")-1
 505                         && memcmp(ZSTR_VAL(name), "\0__COMPILER_HALT_OFFSET__", sizeof("\0__COMPILER_HALT_OFFSET__")) == 0) {
 506                 }
 507                 zend_error(E_NOTICE,"Constant %s already defined", ZSTR_VAL(name));
 508                 zend_string_release(c->name);
 509                 if (!(c->flags & CONST_PERSISTENT)) {
 510                         zval_dtor(&c->value);
 511                 }
 512                 ret = FAILURE;
 513         }
 514         if (lowercase_name) {
 515                 zend_string_release(lowercase_name);
 516         }
 517         return ret;
 518 }
 519 
 520 
 521 /*
 522  * Local variables:
 523  * tab-width: 4
 524  * c-basic-offset: 4
 525  * indent-tabs-mode: t
 526  * End:
 527  */

/* [<][>][^][v][top][bottom][index][help] */