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spl_array.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_var.h"
#include "ext/standard/php_smart_str.h"
#include "zend_interfaces.h"
#include "zend_exceptions.h"
#include "php_spl.h"
#include "spl_functions.h"
#include "spl_engine.h"
#include "spl_iterators.h"
#include "spl_array.h"
#include "spl_exceptions.h"
zend_object_handlers spl_handler_ArrayObject;
PHPAPI zend_class_entry *spl_ce_ArrayObject;
zend_object_handlers spl_handler_ArrayIterator;
PHPAPI zend_class_entry *spl_ce_ArrayIterator;
PHPAPI zend_class_entry *spl_ce_RecursiveArrayIterator;
#define SPL_ARRAY_STD_PROP_LIST 0x00000001
#define SPL_ARRAY_ARRAY_AS_PROPS 0x00000002
#define SPL_ARRAY_CHILD_ARRAYS_ONLY 0x00000004
#define SPL_ARRAY_OVERLOADED_REWIND 0x00010000
#define SPL_ARRAY_OVERLOADED_VALID 0x00020000
#define SPL_ARRAY_OVERLOADED_KEY 0x00040000
#define SPL_ARRAY_OVERLOADED_CURRENT 0x00080000
#define SPL_ARRAY_OVERLOADED_NEXT 0x00100000
#define SPL_ARRAY_IS_REF 0x01000000
#define SPL_ARRAY_IS_SELF 0x02000000
#define SPL_ARRAY_USE_OTHER 0x04000000
#define SPL_ARRAY_INT_MASK 0xFFFF0000
#define SPL_ARRAY_CLONE_MASK 0x0300FFFF
#define SPL_ARRAY_METHOD_NO_ARG 0
#define SPL_ARRAY_METHOD_USE_ARG 1
#define SPL_ARRAY_METHOD_MAY_USER_ARG 2
typedef struct _spl_array_object {
zend_object std;
zval *array;
zval *retval;
HashPosition pos;
ulong pos_h;
int ar_flags;
int is_self;
zend_function *fptr_offset_get;
zend_function *fptr_offset_set;
zend_function *fptr_offset_has;
zend_function *fptr_offset_del;
zend_function *fptr_count;
zend_class_entry* ce_get_iterator;
HashTable *debug_info;
unsigned char nApplyCount;
} spl_array_object;
static inline HashTable *spl_array_get_hash_table(spl_array_object* intern, int check_std_props TSRMLS_DC) { /* {{{ */
if ((intern->ar_flags & SPL_ARRAY_IS_SELF) != 0) {
if (!intern->std.properties) {
rebuild_object_properties(&intern->std);
}
return intern->std.properties;
} else if ((intern->ar_flags & SPL_ARRAY_USE_OTHER) && (check_std_props == 0 || (intern->ar_flags & SPL_ARRAY_STD_PROP_LIST) == 0) && Z_TYPE_P(intern->array) == IS_OBJECT) {
spl_array_object *other = (spl_array_object*)zend_object_store_get_object(intern->array TSRMLS_CC);
return spl_array_get_hash_table(other, check_std_props TSRMLS_CC);
} else if ((intern->ar_flags & ((check_std_props ? SPL_ARRAY_STD_PROP_LIST : 0) | SPL_ARRAY_IS_SELF)) != 0) {
if (!intern->std.properties) {
rebuild_object_properties(&intern->std);
}
return intern->std.properties;
} else {
return HASH_OF(intern->array);
}
} /* }}} */
static void spl_array_rewind(spl_array_object *intern TSRMLS_DC);
static void spl_array_update_pos(spl_array_object* intern) /* {{{ */
{
Bucket *pos = intern->pos;
if (pos != NULL) {
intern->pos_h = pos->h;
}
} /* }}} */
static void spl_array_set_pos(spl_array_object* intern, HashPosition pos) /* {{{ */
{
intern->pos = pos;
spl_array_update_pos(intern);
} /* }}} */
SPL_API int spl_hash_verify_pos_ex(spl_array_object * intern, HashTable * ht TSRMLS_DC) /* {{{ */
{
Bucket *p;
/* IS_CONSISTENT(ht);*/
/* HASH_PROTECT_RECURSION(ht);*/
p = ht->arBuckets[intern->pos_h & ht->nTableMask];
while (p != NULL) {
if (p == intern->pos) {
return SUCCESS;
}
p = p->pNext;
}
/* HASH_UNPROTECT_RECURSION(ht); */
spl_array_rewind(intern TSRMLS_CC);
return FAILURE;
} /* }}} */
SPL_API int spl_hash_verify_pos(spl_array_object * intern TSRMLS_DC) /* {{{ */
{
HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
return spl_hash_verify_pos_ex(intern, ht TSRMLS_CC);
}
/* }}} */
/* {{{ spl_array_object_free_storage */
static void spl_array_object_free_storage(void *object TSRMLS_DC)
{
spl_array_object *intern = (spl_array_object *)object;
zend_object_std_dtor(&intern->std TSRMLS_CC);
zval_ptr_dtor(&intern->array);
zval_ptr_dtor(&intern->retval);
if (intern->debug_info != NULL) {
zend_hash_destroy(intern->debug_info);
efree(intern->debug_info);
}
efree(object);
}
/* }}} */
zend_object_iterator *spl_array_get_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC);
/* {{{ spl_array_object_new_ex */
static zend_object_value spl_array_object_new_ex(zend_class_entry *class_type, spl_array_object **obj, zval *orig, int clone_orig TSRMLS_DC)
{
zend_object_value retval = {0};
spl_array_object *intern;
zval *tmp;
zend_class_entry * parent = class_type;
int inherited = 0;
intern = emalloc(sizeof(spl_array_object));
memset(intern, 0, sizeof(spl_array_object));
*obj = intern;
ALLOC_INIT_ZVAL(intern->retval);
zend_object_std_init(&intern->std, class_type TSRMLS_CC);
object_properties_init(&intern->std, class_type);
intern->ar_flags = 0;
intern->debug_info = NULL;
intern->ce_get_iterator = spl_ce_ArrayIterator;
if (orig) {
spl_array_object *other = (spl_array_object*)zend_object_store_get_object(orig TSRMLS_CC);
intern->ar_flags &= ~ SPL_ARRAY_CLONE_MASK;
intern->ar_flags |= (other->ar_flags & SPL_ARRAY_CLONE_MASK);
intern->ce_get_iterator = other->ce_get_iterator;
if (clone_orig) {
intern->array = other->array;
if (Z_OBJ_HT_P(orig) == &spl_handler_ArrayObject) {
MAKE_STD_ZVAL(intern->array);
array_init(intern->array);
zend_hash_copy(HASH_OF(intern->array), HASH_OF(other->array), (copy_ctor_func_t) zval_add_ref, &tmp, sizeof(zval*));
}
if (Z_OBJ_HT_P(orig) == &spl_handler_ArrayIterator) {
Z_ADDREF_P(other->array);
}
} else {
intern->array = orig;
Z_ADDREF_P(intern->array);
intern->ar_flags |= SPL_ARRAY_IS_REF | SPL_ARRAY_USE_OTHER;
}
} else {
MAKE_STD_ZVAL(intern->array);
array_init(intern->array);
intern->ar_flags &= ~SPL_ARRAY_IS_REF;
}
retval.handle = zend_objects_store_put(intern, (zend_objects_store_dtor_t)zend_objects_destroy_object, (zend_objects_free_object_storage_t) spl_array_object_free_storage, NULL TSRMLS_CC);
while (parent) {
if (parent == spl_ce_ArrayIterator || parent == spl_ce_RecursiveArrayIterator) {
retval.handlers = &spl_handler_ArrayIterator;
class_type->get_iterator = spl_array_get_iterator;
break;
} else if (parent == spl_ce_ArrayObject) {
retval.handlers = &spl_handler_ArrayObject;
break;
}
parent = parent->parent;
inherited = 1;
}
if (!parent) { /* this must never happen */
php_error_docref(NULL TSRMLS_CC, E_COMPILE_ERROR, "Internal compiler error, Class is not child of ArrayObject or ArrayIterator");
}
if (inherited) {
zend_hash_find(&class_type->function_table, "offsetget", sizeof("offsetget"), (void **) &intern->fptr_offset_get);
if (intern->fptr_offset_get->common.scope == parent) {
intern->fptr_offset_get = NULL;
}
zend_hash_find(&class_type->function_table, "offsetset", sizeof("offsetset"), (void **) &intern->fptr_offset_set);
if (intern->fptr_offset_set->common.scope == parent) {
intern->fptr_offset_set = NULL;
}
zend_hash_find(&class_type->function_table, "offsetexists", sizeof("offsetexists"), (void **) &intern->fptr_offset_has);
if (intern->fptr_offset_has->common.scope == parent) {
intern->fptr_offset_has = NULL;
}
zend_hash_find(&class_type->function_table, "offsetunset", sizeof("offsetunset"), (void **) &intern->fptr_offset_del);
if (intern->fptr_offset_del->common.scope == parent) {
intern->fptr_offset_del = NULL;
}
zend_hash_find(&class_type->function_table, "count", sizeof("count"), (void **) &intern->fptr_count);
if (intern->fptr_count->common.scope == parent) {
intern->fptr_count = NULL;
}
}
/* Cache iterator functions if ArrayIterator or derived. Check current's */
/* cache since only current is always required */
if (retval.handlers == &spl_handler_ArrayIterator) {
if (!class_type->iterator_funcs.zf_current) {
zend_hash_find(&class_type->function_table, "rewind", sizeof("rewind"), (void **) &class_type->iterator_funcs.zf_rewind);
zend_hash_find(&class_type->function_table, "valid", sizeof("valid"), (void **) &class_type->iterator_funcs.zf_valid);
zend_hash_find(&class_type->function_table, "key", sizeof("key"), (void **) &class_type->iterator_funcs.zf_key);
zend_hash_find(&class_type->function_table, "current", sizeof("current"), (void **) &class_type->iterator_funcs.zf_current);
zend_hash_find(&class_type->function_table, "next", sizeof("next"), (void **) &class_type->iterator_funcs.zf_next);
}
if (inherited) {
if (class_type->iterator_funcs.zf_rewind->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_REWIND;
if (class_type->iterator_funcs.zf_valid->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_VALID;
if (class_type->iterator_funcs.zf_key->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_KEY;
if (class_type->iterator_funcs.zf_current->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_CURRENT;
if (class_type->iterator_funcs.zf_next->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_NEXT;
}
}
spl_array_rewind(intern TSRMLS_CC);
return retval;
}
/* }}} */
/* {{{ spl_array_object_new */
static zend_object_value spl_array_object_new(zend_class_entry *class_type TSRMLS_DC)
{
spl_array_object *tmp;
return spl_array_object_new_ex(class_type, &tmp, NULL, 0 TSRMLS_CC);
}
/* }}} */
/* {{{ spl_array_object_clone */
static zend_object_value spl_array_object_clone(zval *zobject TSRMLS_DC)
{
zend_object_value new_obj_val;
zend_object *old_object;
zend_object *new_object;
zend_object_handle handle = Z_OBJ_HANDLE_P(zobject);
spl_array_object *intern;
old_object = zend_objects_get_address(zobject TSRMLS_CC);
new_obj_val = spl_array_object_new_ex(old_object->ce, &intern, zobject, 1 TSRMLS_CC);
new_object = &intern->std;
zend_objects_clone_members(new_object, new_obj_val, old_object, handle TSRMLS_CC);
return new_obj_val;
}
/* }}} */
static zval **spl_array_get_dimension_ptr_ptr(int check_inherited, zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
zval **retval;
long index;
HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (!offset) {
return &EG(uninitialized_zval_ptr);
}
if ((type == BP_VAR_W || type == BP_VAR_RW) && (ht->nApplyCount > 0)) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return &EG(error_zval_ptr);;
}
switch(Z_TYPE_P(offset)) {
case IS_NULL:
Z_STRVAL_P(offset) = "";
Z_STRLEN_P(offset) = 0;
case IS_STRING:
if (zend_symtable_find(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &retval) == FAILURE) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined index: %s", Z_STRVAL_P(offset));
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval_ptr);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
case BP_VAR_W: {
zval *value;
ALLOC_INIT_ZVAL(value);
zend_symtable_update(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void**)&value, sizeof(void*), (void **)&retval);
}
}
}
return retval;
case IS_RESOURCE:
zend_error(E_STRICT, "Resource ID#%ld used as offset, casting to integer (%ld)", Z_LVAL_P(offset), Z_LVAL_P(offset));
case IS_DOUBLE:
case IS_BOOL:
case IS_LONG:
if (offset->type == IS_DOUBLE) {
index = (long)Z_DVAL_P(offset);
} else {
index = Z_LVAL_P(offset);
}
if (zend_hash_index_find(ht, index, (void **) &retval) == FAILURE) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined offset: %ld", index);
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval_ptr);
break;
case BP_VAR_RW:
zend_error(E_NOTICE, "Undefined offset: %ld", index);
case BP_VAR_W: {
zval *value;
ALLOC_INIT_ZVAL(value);
zend_hash_index_update(ht, index, (void**)&value, sizeof(void*), (void **)&retval);
}
}
}
return retval;
default:
zend_error(E_WARNING, "Illegal offset type");
return (type == BP_VAR_W || type == BP_VAR_RW) ?
&EG(error_zval_ptr) : &EG(uninitialized_zval_ptr);
}
} /* }}} */
static zval *spl_array_read_dimension_ex(int check_inherited, zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
zval **ret;
if (check_inherited) {
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if (intern->fptr_offset_get) {
zval *rv;
if (!offset) {
ALLOC_INIT_ZVAL(offset);
} else {
SEPARATE_ARG_IF_REF(offset);
}
zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_get, "offsetGet", &rv, offset);
zval_ptr_dtor(&offset);
if (rv) {
zval_ptr_dtor(&intern->retval);
MAKE_STD_ZVAL(intern->retval);
ZVAL_ZVAL(intern->retval, rv, 1, 1);
return intern->retval;
}
return EG(uninitialized_zval_ptr);
}
}
ret = spl_array_get_dimension_ptr_ptr(check_inherited, object, offset, type TSRMLS_CC);
/* When in a write context,
* ZE has to be fooled into thinking this is in a reference set
* by separating (if necessary) and returning as an is_ref=1 zval (even if refcount == 1) */
if ((type == BP_VAR_W || type == BP_VAR_RW || type == BP_VAR_UNSET) && !Z_ISREF_PP(ret) && ret != &EG(uninitialized_zval_ptr)) {
if (Z_REFCOUNT_PP(ret) > 1) {
zval *newval;
/* Separate */
MAKE_STD_ZVAL(newval);
*newval = **ret;
zval_copy_ctor(newval);
Z_SET_REFCOUNT_P(newval, 1);
/* Replace */
Z_DELREF_PP(ret);
*ret = newval;
}
Z_SET_ISREF_PP(ret);
}
return *ret;
} /* }}} */
static zval *spl_array_read_dimension(zval *object, zval *offset, int type TSRMLS_DC) /* {{{ */
{
return spl_array_read_dimension_ex(1, object, offset, type TSRMLS_CC);
} /* }}} */
static void spl_array_write_dimension_ex(int check_inherited, zval *object, zval *offset, zval *value TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
long index;
HashTable *ht;
if (check_inherited && intern->fptr_offset_set) {
if (!offset) {
ALLOC_INIT_ZVAL(offset);
} else {
SEPARATE_ARG_IF_REF(offset);
}
zend_call_method_with_2_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_set, "offsetSet", NULL, offset, value);
zval_ptr_dtor(&offset);
return;
}
if (!offset) {
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
Z_ADDREF_P(value);
zend_hash_next_index_insert(ht, (void**)&value, sizeof(void*), NULL);
return;
}
switch(Z_TYPE_P(offset)) {
case IS_STRING:
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
Z_ADDREF_P(value);
zend_symtable_update(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void**)&value, sizeof(void*), NULL);
return;
case IS_DOUBLE:
case IS_RESOURCE:
case IS_BOOL:
case IS_LONG:
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
if (offset->type == IS_DOUBLE) {
index = (long)Z_DVAL_P(offset);
} else {
index = Z_LVAL_P(offset);
}
Z_ADDREF_P(value);
zend_hash_index_update(ht, index, (void**)&value, sizeof(void*), NULL);
return;
case IS_NULL:
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
Z_ADDREF_P(value);
zend_hash_next_index_insert(ht, (void**)&value, sizeof(void*), NULL);
return;
default:
zend_error(E_WARNING, "Illegal offset type");
return;
}
} /* }}} */
static void spl_array_write_dimension(zval *object, zval *offset, zval *value TSRMLS_DC) /* {{{ */
{
spl_array_write_dimension_ex(1, object, offset, value TSRMLS_CC);
} /* }}} */
static void spl_array_unset_dimension_ex(int check_inherited, zval *object, zval *offset TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
long index;
HashTable *ht;
if (check_inherited && intern->fptr_offset_del) {
SEPARATE_ARG_IF_REF(offset);
zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_del, "offsetUnset", NULL, offset);
zval_ptr_dtor(&offset);
return;
}
switch(Z_TYPE_P(offset)) {
case IS_STRING:
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
if (ht == &EG(symbol_table)) {
if (zend_delete_global_variable(Z_STRVAL_P(offset), Z_STRLEN_P(offset) TSRMLS_CC)) {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
}
} else {
if (zend_symtable_del(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1) == FAILURE) {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
} else {
spl_array_object *obj = intern;
while (1) {
if ((obj->ar_flags & SPL_ARRAY_IS_SELF) != 0) {
break;
} else if (Z_TYPE_P(obj->array) == IS_OBJECT) {
if ((obj->ar_flags & SPL_ARRAY_USE_OTHER) == 0) {
obj = (spl_array_object*)zend_object_store_get_object(obj->array TSRMLS_CC);
break;
} else {
obj = (spl_array_object*)zend_object_store_get_object(obj->array TSRMLS_CC);
}
} else {
obj = NULL;
break;
}
}
if (obj) {
zend_property_info *property_info = zend_get_property_info(obj->std.ce, offset, 1 TSRMLS_CC);
if (property_info &&
(property_info->flags & ZEND_ACC_STATIC) == 0 &&
property_info->offset >= 0) {
obj->std.properties_table[property_info->offset] = NULL;
}
}
}
}
break;
case IS_DOUBLE:
case IS_RESOURCE:
case IS_BOOL:
case IS_LONG:
if (offset->type == IS_DOUBLE) {
index = (long)Z_DVAL_P(offset);
} else {
index = Z_LVAL_P(offset);
}
ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (ht->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
if (zend_hash_index_del(ht, index) == FAILURE) {
zend_error(E_NOTICE,"Undefined offset: %ld", Z_LVAL_P(offset));
}
break;
default:
zend_error(E_WARNING, "Illegal offset type");
return;
}
spl_hash_verify_pos(intern TSRMLS_CC); /* call rewind on FAILURE */
} /* }}} */
static void spl_array_unset_dimension(zval *object, zval *offset TSRMLS_DC) /* {{{ */
{
spl_array_unset_dimension_ex(1, object, offset TSRMLS_CC);
} /* }}} */
static int spl_array_has_dimension_ex(int check_inherited, zval *object, zval *offset, int check_empty TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
long index;
zval *rv, **tmp;
if (check_inherited && intern->fptr_offset_has) {
SEPARATE_ARG_IF_REF(offset);
zend_call_method_with_1_params(&object, Z_OBJCE_P(object), &intern->fptr_offset_has, "offsetExists", &rv, offset);
zval_ptr_dtor(&offset);
if (rv && zend_is_true(rv)) {
zval_ptr_dtor(&rv);
return 1;
}
if (rv) {
zval_ptr_dtor(&rv);
}
return 0;
}
switch(Z_TYPE_P(offset)) {
case IS_STRING:
{
HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (zend_symtable_find(ht, Z_STRVAL_P(offset), Z_STRLEN_P(offset)+1, (void **) &tmp) != FAILURE) {
switch (check_empty) {
case 0:
return Z_TYPE_PP(tmp) != IS_NULL;
case 2:
return 1;
default:
return zend_is_true(*tmp);
}
}
}
return 0;
case IS_DOUBLE:
case IS_RESOURCE:
case IS_BOOL:
case IS_LONG:
{
HashTable *ht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (offset->type == IS_DOUBLE) {
index = (long)Z_DVAL_P(offset);
} else {
index = Z_LVAL_P(offset);
}
if (zend_hash_index_find(ht, index, (void **)&tmp) != FAILURE) {
switch (check_empty) {
case 0:
return Z_TYPE_PP(tmp) != IS_NULL;
case 2:
return 1;
default:
return zend_is_true(*tmp);
}
}
return 0;
}
default:
zend_error(E_WARNING, "Illegal offset type");
}
return 0;
} /* }}} */
static int spl_array_has_dimension(zval *object, zval *offset, int check_empty TSRMLS_DC) /* {{{ */
{
return spl_array_has_dimension_ex(1, object, offset, check_empty TSRMLS_CC);
} /* }}} */
/* {{{ spl_array_object_verify_pos_ex */
static inline int spl_array_object_verify_pos_ex(spl_array_object *object, HashTable *ht, const char *msg_prefix TSRMLS_DC)
{
if (!ht) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%sArray was modified outside object and is no longer an array", msg_prefix);
return FAILURE;
}
if (object->pos && (object->ar_flags & SPL_ARRAY_IS_REF) && spl_hash_verify_pos_ex(object, ht TSRMLS_CC) == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "%sArray was modified outside object and internal position is no longer valid", msg_prefix);
return FAILURE;
}
return SUCCESS;
} /* }}} */
/* {{{ spl_array_object_verify_pos */
static inline int spl_array_object_verify_pos(spl_array_object *object, HashTable *ht TSRMLS_DC)
{
return spl_array_object_verify_pos_ex(object, ht, "" TSRMLS_CC);
} /* }}} */
/* {{{ proto bool ArrayObject::offsetExists(mixed $index)
proto bool ArrayIterator::offsetExists(mixed $index)
Returns whether the requested $index exists. */
SPL_METHOD(Array, offsetExists)
{
zval *index;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
return;
}
RETURN_BOOL(spl_array_has_dimension_ex(0, getThis(), index, 2 TSRMLS_CC));
} /* }}} */
/* {{{ proto mixed ArrayObject::offsetGet(mixed $index)
proto mixed ArrayIterator::offsetGet(mixed $index)
Returns the value at the specified $index. */
SPL_METHOD(Array, offsetGet)
{
zval *index, *value;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
return;
}
value = spl_array_read_dimension_ex(0, getThis(), index, BP_VAR_R TSRMLS_CC);
RETURN_ZVAL(value, 1, 0);
} /* }}} */
/* {{{ proto void ArrayObject::offsetSet(mixed $index, mixed $newval)
proto void ArrayIterator::offsetSet(mixed $index, mixed $newval)
Sets the value at the specified $index to $newval. */
SPL_METHOD(Array, offsetSet)
{
zval *index, *value;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "zz", &index, &value) == FAILURE) {
return;
}
spl_array_write_dimension_ex(0, getThis(), index, value TSRMLS_CC);
} /* }}} */
void spl_array_iterator_append(zval *object, zval *append_value TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
if (!aht) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and is no longer an array");
return;
}
if (Z_TYPE_P(intern->array) == IS_OBJECT) {
php_error_docref(NULL TSRMLS_CC, E_RECOVERABLE_ERROR, "Cannot append properties to objects, use %s::offsetSet() instead", Z_OBJCE_P(object)->name);
return;
}
spl_array_write_dimension(object, NULL, append_value TSRMLS_CC);
if (!intern->pos) {
spl_array_set_pos(intern, aht->pListTail);
}
} /* }}} */
/* {{{ proto void ArrayObject::append(mixed $newval)
proto void ArrayIterator::append(mixed $newval)
Appends the value (cannot be called for objects). */
SPL_METHOD(Array, append)
{
zval *value;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &value) == FAILURE) {
return;
}
spl_array_iterator_append(getThis(), value TSRMLS_CC);
} /* }}} */
/* {{{ proto void ArrayObject::offsetUnset(mixed $index)
proto void ArrayIterator::offsetUnset(mixed $index)
Unsets the value at the specified $index. */
SPL_METHOD(Array, offsetUnset)
{
zval *index;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &index) == FAILURE) {
return;
}
spl_array_unset_dimension_ex(0, getThis(), index TSRMLS_CC);
} /* }}} */
/* {{{ proto array ArrayObject::getArrayCopy()
proto array ArrayIterator::getArrayCopy()
Return a copy of the contained array */
SPL_METHOD(Array, getArrayCopy)
{
zval *object = getThis(), *tmp;
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
array_init(return_value);
zend_hash_copy(HASH_OF(return_value), spl_array_get_hash_table(intern, 0 TSRMLS_CC), (copy_ctor_func_t) zval_add_ref, &tmp, sizeof(zval*));
} /* }}} */
static HashTable *spl_array_get_properties(zval *object TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
HashTable *result;
if (intern->nApplyCount > 1) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Nesting level too deep - recursive dependency?");
}
intern->nApplyCount++;
result = spl_array_get_hash_table(intern, 1 TSRMLS_CC);
intern->nApplyCount--;
return result;
} /* }}} */
static HashTable* spl_array_get_debug_info(zval *obj, int *is_temp TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(obj TSRMLS_CC);
zval *tmp, *storage;
int name_len;
char *zname;
zend_class_entry *base;
*is_temp = 0;
if (!intern->std.properties) {
rebuild_object_properties(&intern->std);
}
if (HASH_OF(intern->array) == intern->std.properties) {
return intern->std.properties;
} else {
if (intern->debug_info == NULL) {
ALLOC_HASHTABLE(intern->debug_info);
ZEND_INIT_SYMTABLE_EX(intern->debug_info, zend_hash_num_elements(intern->std.properties) + 1, 0);
}
if (intern->debug_info->nApplyCount == 0) {
zend_hash_clean(intern->debug_info);
zend_hash_copy(intern->debug_info, intern->std.properties, (copy_ctor_func_t) zval_add_ref, (void *) &tmp, sizeof(zval *));
storage = intern->array;
zval_add_ref(&storage);
base = (Z_OBJ_HT_P(obj) == &spl_handler_ArrayIterator) ? spl_ce_ArrayIterator : spl_ce_ArrayObject;
zname = spl_gen_private_prop_name(base, "storage", sizeof("storage")-1, &name_len TSRMLS_CC);
zend_symtable_update(intern->debug_info, zname, name_len+1, &storage, sizeof(zval *), NULL);
efree(zname);
}
return intern->debug_info;
}
}
/* }}} */
static zval *spl_array_read_property(zval *object, zval *member, int type, const zend_literal *key TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
return spl_array_read_dimension(object, member, type TSRMLS_CC);
}
return std_object_handlers.read_property(object, member, type, key TSRMLS_CC);
} /* }}} */
static void spl_array_write_property(zval *object, zval *member, zval *value, const zend_literal *key TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
spl_array_write_dimension(object, member, value TSRMLS_CC);
return;
}
std_object_handlers.write_property(object, member, value, key TSRMLS_CC);
} /* }}} */
static zval **spl_array_get_property_ptr_ptr(zval *object, zval *member, const zend_literal *key TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
return spl_array_get_dimension_ptr_ptr(1, object, member, BP_VAR_RW TSRMLS_CC);
}
return std_object_handlers.get_property_ptr_ptr(object, member, key TSRMLS_CC);
} /* }}} */
static int spl_array_has_property(zval *object, zval *member, int has_set_exists, const zend_literal *key TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
return spl_array_has_dimension(object, member, has_set_exists TSRMLS_CC);
}
return std_object_handlers.has_property(object, member, has_set_exists, key TSRMLS_CC);
} /* }}} */
static void spl_array_unset_property(zval *object, zval *member, const zend_literal *key TSRMLS_DC) /* {{{ */
{
spl_array_object *intern = (spl_array_object*)zend_object_store_get_object(object TSRMLS_CC);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !std_object_handlers.has_property(object, member, 2, key TSRMLS_CC)) {
spl_array_unset_dimension(object, member TSRMLS_CC);
spl_array_rewind(intern TSRMLS_CC); /* because deletion might invalidate position */
return;
}
std_object_handlers.unset_property(object, member, key TSRMLS_CC);
} /* }}} */
static int spl_array_compare_objects(zval *o1, zval *o2 TSRMLS_DC) /* {{{ */
{
HashTable *ht1,
*ht2;
spl_array_object *intern1,
*intern2;
int result = 0;
zval temp_zv;
intern1 = (spl_array_object*)zend_object_store_get_object(o1 TSRMLS_CC);
intern2 = (spl_array_object*)zend_object_store_get_object(o2 TSRMLS_CC);
ht1 = spl_array_get_hash_table(intern1, 0 TSRMLS_CC);
ht2 = spl_array_get_hash_table(intern2, 0 TSRMLS_CC);
zend_compare_symbol_tables(&temp_zv, ht1, ht2 TSRMLS_CC);
result = (int)Z_LVAL(temp_zv);
/* if we just compared std.properties, don't do it again */
if (result == 0 &&
!(ht1 == intern1->std.properties && ht2 == intern2->std.properties)) {
result = std_object_handlers.compare_objects(o1, o2 TSRMLS_CC);
}
return result;
} /* }}} */
static int spl_array_skip_protected(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
char *string_key;
uint string_length;
ulong num_key;
if (Z_TYPE_P(intern->array) == IS_OBJECT) {
do {
if (zend_hash_get_current_key_ex(aht, &string_key, &string_length, &num_key, 0, &intern->pos) == HASH_KEY_IS_STRING) {
/* zend_hash_get_current_key_ex() should never set
* string_length to 0 when returning HASH_KEY_IS_STRING, but we
* may as well be defensive and consider that successful.
* Beyond that, we're looking for protected keys (which will
* have a null byte at string_key[0]), but want to avoid
* skipping completely empty keys (which will also have the
* null byte, but a string_length of 1). */
if (!string_length || string_key[0] || string_length == 1) {
return SUCCESS;
}
} else {
return SUCCESS;
}
if (zend_hash_has_more_elements_ex(aht, &intern->pos) != SUCCESS) {
return FAILURE;
}
zend_hash_move_forward_ex(aht, &intern->pos);
spl_array_update_pos(intern);
} while (1);
}
return FAILURE;
} /* }}} */
static int spl_array_next_no_verify(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
zend_hash_move_forward_ex(aht, &intern->pos);
spl_array_update_pos(intern);
if (Z_TYPE_P(intern->array) == IS_OBJECT) {
return spl_array_skip_protected(intern, aht TSRMLS_CC);
} else {
return zend_hash_has_more_elements_ex(aht, &intern->pos);
}
} /* }}} */
static int spl_array_next_ex(spl_array_object *intern, HashTable *aht TSRMLS_DC) /* {{{ */
{
if ((intern->ar_flags & SPL_ARRAY_IS_REF) && spl_hash_verify_pos_ex(intern, aht TSRMLS_CC) == FAILURE) {
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Array was modified outside object and internal position is no longer valid");
return FAILURE;
}
return spl_array_next_no_verify(intern, aht TSRMLS_CC);
} /* }}} */
static int spl_array_next(spl_array_object *intern TSRMLS_DC) /* {{{ */
{
HashTable *aht = spl_array_get_hash_table(intern, 0 TSRMLS_CC);
return spl_array_next_ex(intern, aht TSRMLS_CC);
} /* }}} */
/* define an overloaded iterator structure */
typedef struct {
zend_user_iterator intern;
spl_array_object *object;
} spl_array_it;
static void spl_array_it_dtor(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
spl_array_it *iterator = (spl_array_it *)iter;
zend_user_it_invalidate_current(iter TSRMLS_CC);
zval_ptr_dtor((zval**)&iterator->intern.it.data);
efree(iterator);
}
/* }}} */
static int spl_array_it_valid(zend_object_iterator *iter TSRMLS_DC) /* {{{ */
{
spl_array_it *iterator = (spl_array_it *)iter;
spl_array_object *object = iterator->object;
HashTable *aht = spl_array_get_hash_table(object, 0 TSRMLS_CC);
if (object->ar_flags & SPL_ARRAY_OVERLOADED_VALID) {