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spl_array.c
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/*
+----------------------------------------------------------------------+
| Copyright (c) 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]> |
+----------------------------------------------------------------------+
*/
#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 "zend_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_SELF 0x01000000
#define SPL_ARRAY_USE_OTHER 0x02000000
#define SPL_ARRAY_INT_MASK 0xFFFF0000
#define SPL_ARRAY_CLONE_MASK 0x0100FFFF
#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 {
zval array;
uint32_t ht_iter;
int ar_flags;
unsigned char nApplyCount;
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;
zend_object std;
} spl_array_object;
static inline spl_array_object *spl_array_from_obj(zend_object *obj) /* {{{ */ {
return (spl_array_object*)((char*)(obj) - XtOffsetOf(spl_array_object, std));
}
/* }}} */
#define Z_SPLARRAY_P(zv) spl_array_from_obj(Z_OBJ_P((zv)))
static inline HashTable **spl_array_get_hash_table_ptr(spl_array_object* intern) { /* {{{ */
//??? TODO: Delay duplication for arrays; only duplicate for write operations
if (intern->ar_flags & SPL_ARRAY_IS_SELF) {
if (!intern->std.properties) {
rebuild_object_properties(&intern->std);
}
return &intern->std.properties;
} else if (intern->ar_flags & SPL_ARRAY_USE_OTHER) {
spl_array_object *other = Z_SPLARRAY_P(&intern->array);
return spl_array_get_hash_table_ptr(other);
} else if (Z_TYPE(intern->array) == IS_ARRAY) {
return &Z_ARRVAL(intern->array);
} else {
zend_object *obj = Z_OBJ(intern->array);
if (!obj->properties) {
rebuild_object_properties(obj);
} else if (GC_REFCOUNT(obj->properties) > 1) {
if (EXPECTED(!(GC_FLAGS(obj->properties) & IS_ARRAY_IMMUTABLE))) {
GC_DELREF(obj->properties);
}
obj->properties = zend_array_dup(obj->properties);
}
return &obj->properties;
}
}
/* }}} */
static inline HashTable *spl_array_get_hash_table(spl_array_object* intern) { /* {{{ */
return *spl_array_get_hash_table_ptr(intern);
}
/* }}} */
static inline void spl_array_replace_hash_table(spl_array_object* intern, HashTable *ht) { /* {{{ */
HashTable **ht_ptr = spl_array_get_hash_table_ptr(intern);
zend_array_destroy(*ht_ptr);
*ht_ptr = ht;
}
/* }}} */
static inline zend_bool spl_array_is_object(spl_array_object *intern) /* {{{ */
{
while (intern->ar_flags & SPL_ARRAY_USE_OTHER) {
intern = Z_SPLARRAY_P(&intern->array);
}
return (intern->ar_flags & SPL_ARRAY_IS_SELF) || Z_TYPE(intern->array) == IS_OBJECT;
}
/* }}} */
static int spl_array_skip_protected(spl_array_object *intern, HashTable *aht);
static zend_never_inline void spl_array_create_ht_iter(HashTable *ht, spl_array_object* intern) /* {{{ */
{
intern->ht_iter = zend_hash_iterator_add(ht, zend_hash_get_current_pos(ht));
zend_hash_internal_pointer_reset_ex(ht, &EG(ht_iterators)[intern->ht_iter].pos);
spl_array_skip_protected(intern, ht);
}
/* }}} */
static zend_always_inline uint32_t *spl_array_get_pos_ptr(HashTable *ht, spl_array_object* intern) /* {{{ */
{
if (UNEXPECTED(intern->ht_iter == (uint32_t)-1)) {
spl_array_create_ht_iter(ht, intern);
}
return &EG(ht_iterators)[intern->ht_iter].pos;
}
/* }}} */
/* {{{ spl_array_object_free_storage */
static void spl_array_object_free_storage(zend_object *object)
{
spl_array_object *intern = spl_array_from_obj(object);
if (intern->ht_iter != (uint32_t) -1) {
zend_hash_iterator_del(intern->ht_iter);
}
zend_object_std_dtor(&intern->std);
zval_ptr_dtor(&intern->array);
}
/* }}} */
zend_object_iterator *spl_array_get_iterator(zend_class_entry *ce, zval *object, int by_ref);
/* {{{ spl_array_object_new_ex */
static zend_object *spl_array_object_new_ex(zend_class_entry *class_type, zend_object *orig, int clone_orig)
{
spl_array_object *intern;
zend_class_entry *parent = class_type;
int inherited = 0;
intern = zend_object_alloc(sizeof(spl_array_object), parent);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
intern->ar_flags = 0;
intern->ce_get_iterator = spl_ce_ArrayIterator;
if (orig) {
spl_array_object *other = spl_array_from_obj(orig);
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) {
if (other->ar_flags & SPL_ARRAY_IS_SELF) {
ZVAL_UNDEF(&intern->array);
} else if (orig->handlers == &spl_handler_ArrayObject) {
ZVAL_ARR(&intern->array,
zend_array_dup(spl_array_get_hash_table(other)));
} else {
ZEND_ASSERT(orig->handlers == &spl_handler_ArrayIterator);
GC_ADDREF(orig);
ZVAL_OBJ(&intern->array, orig);
intern->ar_flags |= SPL_ARRAY_USE_OTHER;
}
} else {
GC_ADDREF(orig);
ZVAL_OBJ(&intern->array, orig);
intern->ar_flags |= SPL_ARRAY_USE_OTHER;
}
} else {
array_init(&intern->array);
}
while (parent) {
if (parent == spl_ce_ArrayIterator || parent == spl_ce_RecursiveArrayIterator) {
intern->std.handlers = &spl_handler_ArrayIterator;
break;
} else if (parent == spl_ce_ArrayObject) {
intern->std.handlers = &spl_handler_ArrayObject;
break;
}
parent = parent->parent;
inherited = 1;
}
if (!parent) { /* this must never happen */
php_error_docref(NULL, E_COMPILE_ERROR, "Internal compiler error, Class is not child of ArrayObject or ArrayIterator");
}
if (inherited) {
intern->fptr_offset_get = zend_hash_str_find_ptr(&class_type->function_table, "offsetget", sizeof("offsetget") - 1);
if (intern->fptr_offset_get->common.scope == parent) {
intern->fptr_offset_get = NULL;
}
intern->fptr_offset_set = zend_hash_str_find_ptr(&class_type->function_table, "offsetset", sizeof("offsetset") - 1);
if (intern->fptr_offset_set->common.scope == parent) {
intern->fptr_offset_set = NULL;
}
intern->fptr_offset_has = zend_hash_str_find_ptr(&class_type->function_table, "offsetexists", sizeof("offsetexists") - 1);
if (intern->fptr_offset_has->common.scope == parent) {
intern->fptr_offset_has = NULL;
}
intern->fptr_offset_del = zend_hash_str_find_ptr(&class_type->function_table, "offsetunset", sizeof("offsetunset") - 1);
if (intern->fptr_offset_del->common.scope == parent) {
intern->fptr_offset_del = NULL;
}
intern->fptr_count = zend_hash_str_find_ptr(&class_type->function_table, "count", sizeof("count") - 1);
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 (intern->std.handlers == &spl_handler_ArrayIterator) {
zend_class_iterator_funcs *funcs_ptr = class_type->iterator_funcs_ptr;
if (!funcs_ptr->zf_current) {
funcs_ptr->zf_rewind = zend_hash_str_find_ptr(&class_type->function_table, "rewind", sizeof("rewind") - 1);
funcs_ptr->zf_valid = zend_hash_str_find_ptr(&class_type->function_table, "valid", sizeof("valid") - 1);
funcs_ptr->zf_key = zend_hash_str_find_ptr(&class_type->function_table, "key", sizeof("key") - 1);
funcs_ptr->zf_current = zend_hash_str_find_ptr(&class_type->function_table, "current", sizeof("current") - 1);
funcs_ptr->zf_next = zend_hash_str_find_ptr(&class_type->function_table, "next", sizeof("next") - 1);
}
if (inherited) {
if (funcs_ptr->zf_rewind->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_REWIND;
if (funcs_ptr->zf_valid->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_VALID;
if (funcs_ptr->zf_key->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_KEY;
if (funcs_ptr->zf_current->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_CURRENT;
if (funcs_ptr->zf_next->common.scope != parent) intern->ar_flags |= SPL_ARRAY_OVERLOADED_NEXT;
}
}
intern->ht_iter = (uint32_t)-1;
return &intern->std;
}
/* }}} */
/* {{{ spl_array_object_new */
static zend_object *spl_array_object_new(zend_class_entry *class_type)
{
return spl_array_object_new_ex(class_type, NULL, 0);
}
/* }}} */
/* {{{ spl_array_object_clone */
static zend_object *spl_array_object_clone(zend_object *old_object)
{
zend_object *new_object;
new_object = spl_array_object_new_ex(old_object->ce, old_object, 1);
zend_objects_clone_members(new_object, old_object);
return new_object;
}
/* }}} */
static zval *spl_array_get_dimension_ptr(int check_inherited, spl_array_object *intern, zval *offset, int type) /* {{{ */
{
zval *retval;
zend_long index;
zend_string *offset_key;
HashTable *ht = spl_array_get_hash_table(intern);
if (!offset || Z_ISUNDEF_P(offset) || !ht) {
return &EG(uninitialized_zval);
}
if ((type == BP_VAR_W || type == BP_VAR_RW) && intern->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return &EG(error_zval);
}
try_again:
switch (Z_TYPE_P(offset)) {
case IS_NULL:
offset_key = ZSTR_EMPTY_ALLOC();
goto fetch_dim_string;
case IS_STRING:
offset_key = Z_STR_P(offset);
fetch_dim_string:
retval = zend_symtable_find(ht, offset_key);
if (retval) {
if (Z_TYPE_P(retval) == IS_INDIRECT) {
retval = Z_INDIRECT_P(retval);
if (Z_TYPE_P(retval) == IS_UNDEF) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined index: %s", ZSTR_VAL(offset_key));
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined index: %s", ZSTR_VAL(offset_key));
case BP_VAR_W: {
ZVAL_NULL(retval);
}
}
}
}
} else {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined index: %s", ZSTR_VAL(offset_key));
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE,"Undefined index: %s", ZSTR_VAL(offset_key));
case BP_VAR_W: {
zval value;
ZVAL_NULL(&value);
retval = zend_symtable_update(ht, offset_key, &value);
}
}
}
return retval;
case IS_RESOURCE:
zend_error(E_WARNING, "Resource ID#%d used as offset, casting to integer (%d)", Z_RES_P(offset)->handle, Z_RES_P(offset)->handle);
index = Z_RES_P(offset)->handle;
goto num_index;
case IS_DOUBLE:
index = (zend_long)Z_DVAL_P(offset);
goto num_index;
case IS_FALSE:
index = 0;
goto num_index;
case IS_TRUE:
index = 1;
goto num_index;
case IS_LONG:
index = Z_LVAL_P(offset);
num_index:
if ((retval = zend_hash_index_find(ht, index)) == NULL) {
switch (type) {
case BP_VAR_R:
zend_error(E_NOTICE, "Undefined offset: " ZEND_LONG_FMT, index);
case BP_VAR_UNSET:
case BP_VAR_IS:
retval = &EG(uninitialized_zval);
break;
case BP_VAR_RW:
zend_error(E_NOTICE, "Undefined offset: " ZEND_LONG_FMT, index);
case BP_VAR_W: {
zval value;
ZVAL_UNDEF(&value);
retval = zend_hash_index_update(ht, index, &value);
}
}
}
return retval;
case IS_REFERENCE:
ZVAL_DEREF(offset);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
return (type == BP_VAR_W || type == BP_VAR_RW) ?
&EG(error_zval) : &EG(uninitialized_zval);
}
} /* }}} */
static int spl_array_has_dimension(zend_object *object, zval *offset, int check_empty);
static zval *spl_array_read_dimension_ex(int check_inherited, zend_object *object, zval *offset, int type, zval *rv) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
zval *ret;
if (check_inherited &&
(intern->fptr_offset_get || (type == BP_VAR_IS && intern->fptr_offset_has))) {
if (type == BP_VAR_IS) {
if (!spl_array_has_dimension(object, offset, 0)) {
return &EG(uninitialized_zval);
}
}
if (intern->fptr_offset_get) {
zval tmp;
if (!offset) {
ZVAL_UNDEF(&tmp);
offset = &tmp;
} else {
SEPARATE_ARG_IF_REF(offset);
}
zend_call_method_with_1_params(object, object->ce, &intern->fptr_offset_get, "offsetGet", rv, offset);
zval_ptr_dtor(offset);
if (!Z_ISUNDEF_P(rv)) {
return rv;
}
return &EG(uninitialized_zval);
}
}
ret = spl_array_get_dimension_ptr(check_inherited, intern, offset, type);
/* 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 IS_REFERENCE (with refcount == 1)
*/
if ((type == BP_VAR_W || type == BP_VAR_RW || type == BP_VAR_UNSET) &&
!Z_ISREF_P(ret) &&
EXPECTED(ret != &EG(uninitialized_zval))) {
ZVAL_NEW_REF(ret, ret);
}
return ret;
} /* }}} */
static zval *spl_array_read_dimension(zend_object *object, zval *offset, int type, zval *rv) /* {{{ */
{
return spl_array_read_dimension_ex(1, object, offset, type, rv);
} /* }}} */
static void spl_array_write_dimension_ex(int check_inherited, zend_object *object, zval *offset, zval *value) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
zend_long index;
HashTable *ht;
if (check_inherited && intern->fptr_offset_set) {
zval tmp;
if (!offset) {
ZVAL_NULL(&tmp);
offset = &tmp;
} else {
SEPARATE_ARG_IF_REF(offset);
}
zend_call_method_with_2_params(object, object->ce, &intern->fptr_offset_set, "offsetSet", NULL, offset, value);
zval_ptr_dtor(offset);
return;
}
if (intern->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
Z_TRY_ADDREF_P(value);
if (!offset) {
ht = spl_array_get_hash_table(intern);
zend_hash_next_index_insert(ht, value);
return;
}
try_again:
switch (Z_TYPE_P(offset)) {
case IS_STRING:
ht = spl_array_get_hash_table(intern);
zend_symtable_update_ind(ht, Z_STR_P(offset), value);
return;
case IS_DOUBLE:
index = (zend_long)Z_DVAL_P(offset);
goto num_index;
case IS_RESOURCE:
index = Z_RES_HANDLE_P(offset);
goto num_index;
case IS_FALSE:
index = 0;
goto num_index;
case IS_TRUE:
index = 1;
goto num_index;
case IS_LONG:
index = Z_LVAL_P(offset);
num_index:
ht = spl_array_get_hash_table(intern);
zend_hash_index_update(ht, index, value);
return;
case IS_NULL:
ht = spl_array_get_hash_table(intern);
zend_hash_next_index_insert(ht, value);
return;
case IS_REFERENCE:
ZVAL_DEREF(offset);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
zval_ptr_dtor(value);
return;
}
} /* }}} */
static void spl_array_write_dimension(zend_object *object, zval *offset, zval *value) /* {{{ */
{
spl_array_write_dimension_ex(1, object, offset, value);
} /* }}} */
static void spl_array_unset_dimension_ex(int check_inherited, zend_object *object, zval *offset) /* {{{ */
{
zend_long index;
HashTable *ht;
spl_array_object *intern = spl_array_from_obj(object);
if (check_inherited && intern->fptr_offset_del) {
SEPARATE_ARG_IF_REF(offset);
zend_call_method_with_1_params(object, object->ce, &intern->fptr_offset_del, "offsetUnset", NULL, offset);
zval_ptr_dtor(offset);
return;
}
if (intern->nApplyCount > 0) {
zend_error(E_WARNING, "Modification of ArrayObject during sorting is prohibited");
return;
}
try_again:
switch (Z_TYPE_P(offset)) {
case IS_STRING:
ht = spl_array_get_hash_table(intern);
if (ht == &EG(symbol_table)) {
if (zend_delete_global_variable(Z_STR_P(offset))) {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
}
} else {
zval *data = zend_symtable_find(ht, Z_STR_P(offset));
if (data) {
if (Z_TYPE_P(data) == IS_INDIRECT) {
data = Z_INDIRECT_P(data);
if (Z_TYPE_P(data) == IS_UNDEF) {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
} else {
zval_ptr_dtor(data);
ZVAL_UNDEF(data);
HT_FLAGS(ht) |= HASH_FLAG_HAS_EMPTY_IND;
zend_hash_move_forward_ex(ht, spl_array_get_pos_ptr(ht, intern));
if (spl_array_is_object(intern)) {
spl_array_skip_protected(intern, ht);
}
}
} else if (zend_symtable_del(ht, Z_STR_P(offset)) == FAILURE) {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
}
} else {
zend_error(E_NOTICE,"Undefined index: %s", Z_STRVAL_P(offset));
}
}
break;
case IS_DOUBLE:
index = (zend_long)Z_DVAL_P(offset);
goto num_index;
case IS_RESOURCE:
index = Z_RES_HANDLE_P(offset);
goto num_index;
case IS_FALSE:
index = 0;
goto num_index;
case IS_TRUE:
index = 1;
goto num_index;
case IS_LONG:
index = Z_LVAL_P(offset);
num_index:
ht = spl_array_get_hash_table(intern);
if (zend_hash_index_del(ht, index) == FAILURE) {
zend_error(E_NOTICE,"Undefined offset: " ZEND_LONG_FMT, index);
}
break;
case IS_REFERENCE:
ZVAL_DEREF(offset);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
return;
}
} /* }}} */
static void spl_array_unset_dimension(zend_object *object, zval *offset) /* {{{ */
{
spl_array_unset_dimension_ex(1, object, offset);
} /* }}} */
static int spl_array_has_dimension_ex(int check_inherited, zend_object *object, zval *offset, int check_empty) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
zend_long index;
zval rv, *value = NULL, *tmp;
if (check_inherited && intern->fptr_offset_has) {
SEPARATE_ARG_IF_REF(offset);
zend_call_method_with_1_params(object, object->ce, &intern->fptr_offset_has, "offsetExists", &rv, offset);
zval_ptr_dtor(offset);
if (zend_is_true(&rv)) {
zval_ptr_dtor(&rv);
if (check_empty != 1) {
return 1;
} else if (intern->fptr_offset_get) {
value = spl_array_read_dimension_ex(1, object, offset, BP_VAR_R, &rv);
}
} else {
zval_ptr_dtor(&rv);
return 0;
}
}
if (!value) {
HashTable *ht = spl_array_get_hash_table(intern);
try_again:
switch (Z_TYPE_P(offset)) {
case IS_STRING:
if ((tmp = zend_symtable_find(ht, Z_STR_P(offset))) != NULL) {
if (check_empty == 2) {
return 1;
}
} else {
return 0;
}
break;
case IS_DOUBLE:
index = (zend_long)Z_DVAL_P(offset);
goto num_index;
case IS_RESOURCE:
index = Z_RES_HANDLE_P(offset);
goto num_index;
case IS_FALSE:
index = 0;
goto num_index;
case IS_TRUE:
index = 1;
goto num_index;
case IS_LONG:
index = Z_LVAL_P(offset);
num_index:
if ((tmp = zend_hash_index_find(ht, index)) != NULL) {
if (check_empty == 2) {
return 1;
}
} else {
return 0;
}
break;
case IS_REFERENCE:
ZVAL_DEREF(offset);
goto try_again;
default:
zend_error(E_WARNING, "Illegal offset type");
return 0;
}
if (check_empty && check_inherited && intern->fptr_offset_get) {
value = spl_array_read_dimension_ex(1, object, offset, BP_VAR_R, &rv);
} else {
value = tmp;
}
}
{
zend_bool result = check_empty ? zend_is_true(value) : Z_TYPE_P(value) != IS_NULL;
if (value == &rv) {
zval_ptr_dtor(&rv);
}
return result;
}
} /* }}} */
static int spl_array_has_dimension(zend_object *object, zval *offset, int check_empty) /* {{{ */
{
return spl_array_has_dimension_ex(1, object, offset, check_empty);
} /* }}} */
/* {{{ 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(), "z", &index) == FAILURE) {
return;
}
RETURN_BOOL(spl_array_has_dimension_ex(0, Z_OBJ_P(ZEND_THIS), index, 2));
} /* }}} */
/* {{{ proto mixed ArrayObject::offsetGet(mixed $index)
proto mixed ArrayIterator::offsetGet(mixed $index)
Returns the value at the specified $index. */
SPL_METHOD(Array, offsetGet)
{
zval *value, *index;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z", &index) == FAILURE) {
return;
}
value = spl_array_read_dimension_ex(0, Z_OBJ_P(ZEND_THIS), index, BP_VAR_R, return_value);
if (value != return_value) {
ZVAL_COPY_DEREF(return_value, value);
}
} /* }}} */
/* {{{ 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(), "zz", &index, &value) == FAILURE) {
return;
}
spl_array_write_dimension_ex(0, Z_OBJ_P(ZEND_THIS), index, value);
} /* }}} */
void spl_array_iterator_append(zval *object, zval *append_value) /* {{{ */
{
spl_array_object *intern = Z_SPLARRAY_P(object);
if (spl_array_is_object(intern)) {
zend_throw_error(NULL, "Cannot append properties to objects, use %s::offsetSet() instead", ZSTR_VAL(Z_OBJCE_P(object)->name));
return;
}
spl_array_write_dimension(Z_OBJ_P(object), NULL, append_value);
} /* }}} */
/* {{{ 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(), "z", &value) == FAILURE) {
return;
}
spl_array_iterator_append(ZEND_THIS, value);
} /* }}} */
/* {{{ 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(), "z", &index) == FAILURE) {
return;
}
spl_array_unset_dimension_ex(0, Z_OBJ_P(ZEND_THIS), index);
} /* }}} */
/* {{{ proto array ArrayObject::getArrayCopy()
proto array ArrayIterator::getArrayCopy()
Return a copy of the contained array */
SPL_METHOD(Array, getArrayCopy)
{
zval *object = ZEND_THIS;
spl_array_object *intern = Z_SPLARRAY_P(object);
RETURN_ARR(zend_array_dup(spl_array_get_hash_table(intern)));
} /* }}} */
static HashTable *spl_array_get_properties_for(zend_object *object, zend_prop_purpose purpose) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
HashTable *ht;
zend_bool dup;
if (intern->ar_flags & SPL_ARRAY_STD_PROP_LIST) {
return zend_std_get_properties_for(object, purpose);
}
/* We are supposed to be the only owner of the internal hashtable.
* The "dup" flag decides whether this is a "long-term" use where
* we need to duplicate, or a "temporary" one, where we can expect
* that no operations on the ArrayObject will be performed in the
* meantime. */
switch (purpose) {
case ZEND_PROP_PURPOSE_ARRAY_CAST:
dup = 1;
break;
case ZEND_PROP_PURPOSE_VAR_EXPORT:
case ZEND_PROP_PURPOSE_JSON:
dup = 0;
break;
default:
return zend_std_get_properties_for(object, purpose);
}
ht = spl_array_get_hash_table(intern);
if (dup) {
ht = zend_array_dup(ht);
} else {
GC_ADDREF(ht);
}
return ht;
} /* }}} */
static HashTable* spl_array_get_debug_info(zend_object *obj, int *is_temp) /* {{{ */
{
zval *storage;
zend_string *zname;
zend_class_entry *base;
spl_array_object *intern = spl_array_from_obj(obj);
if (!intern->std.properties) {
rebuild_object_properties(&intern->std);
}
if (intern->ar_flags & SPL_ARRAY_IS_SELF) {
*is_temp = 0;
return intern->std.properties;
} else {
HashTable *debug_info;
*is_temp = 1;
debug_info = zend_new_array(zend_hash_num_elements(intern->std.properties) + 1);
zend_hash_copy(debug_info, intern->std.properties, (copy_ctor_func_t) zval_add_ref);
storage = &intern->array;
Z_TRY_ADDREF_P(storage);
base = obj->handlers == &spl_handler_ArrayIterator
? spl_ce_ArrayIterator : spl_ce_ArrayObject;
zname = spl_gen_private_prop_name(base, "storage", sizeof("storage")-1);
zend_symtable_update(debug_info, zname, storage);
zend_string_release_ex(zname, 0);
return debug_info;
}
}
/* }}} */
static HashTable *spl_array_get_gc(zend_object *obj, zval **gc_data, int *gc_data_count) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(obj);
*gc_data = &intern->array;
*gc_data_count = 1;
return zend_std_get_properties(obj);
}
/* }}} */
static zval *spl_array_read_property(zend_object *object, zend_string *name, int type, void **cache_slot, zval *rv) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !zend_std_has_property(object, name, ZEND_PROPERTY_EXISTS, NULL)) {
zval member;
ZVAL_STR(&member, name);
return spl_array_read_dimension(object, &member, type, rv);
}
return zend_std_read_property(object, name, type, cache_slot, rv);
} /* }}} */
static zval *spl_array_write_property(zend_object *object, zend_string *name, zval *value, void **cache_slot) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !zend_std_has_property(object, name, ZEND_PROPERTY_EXISTS, NULL)) {
zval member;
ZVAL_STR(&member, name);
spl_array_write_dimension(object, &member, value);
return value;
}
return zend_std_write_property(object, name, value, cache_slot);
} /* }}} */
static zval *spl_array_get_property_ptr_ptr(zend_object *object, zend_string *name, int type, void **cache_slot) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !zend_std_has_property(object, name, ZEND_PROPERTY_EXISTS, NULL)) {
/* If object has offsetGet() overridden, then fallback to read_property,
* which will call offsetGet(). */
zval member;
if (intern->fptr_offset_get) {
return NULL;
}
ZVAL_STR(&member, name);
return spl_array_get_dimension_ptr(1, intern, &member, type);
}
return zend_std_get_property_ptr_ptr(object, name, type, cache_slot);
} /* }}} */
static int spl_array_has_property(zend_object *object, zend_string *name, int has_set_exists, void **cache_slot) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !zend_std_has_property(object, name, ZEND_PROPERTY_EXISTS, NULL)) {
zval member;
ZVAL_STR(&member, name);
return spl_array_has_dimension(object, &member, has_set_exists);
}
return zend_std_has_property(object, name, has_set_exists, cache_slot);
} /* }}} */
static void spl_array_unset_property(zend_object *object, zend_string *name, void **cache_slot) /* {{{ */
{
spl_array_object *intern = spl_array_from_obj(object);
if ((intern->ar_flags & SPL_ARRAY_ARRAY_AS_PROPS) != 0
&& !zend_std_has_property(object, name, ZEND_PROPERTY_EXISTS, NULL)) {
zval member;
ZVAL_STR(&member, name);
spl_array_unset_dimension(object, &member);
return;
}
zend_std_unset_property(object, name, cache_slot);
} /* }}} */
static int spl_array_compare_objects(zval *o1, zval *o2) /* {{{ */
{
HashTable *ht1,
*ht2;
spl_array_object *intern1,
*intern2;
int result = 0;
ZEND_COMPARE_OBJECTS_FALLBACK(o1, o2);
intern1 = Z_SPLARRAY_P(o1);
intern2 = Z_SPLARRAY_P(o2);
ht1 = spl_array_get_hash_table(intern1);
ht2 = spl_array_get_hash_table(intern2);
result = zend_compare_symbol_tables(ht1, ht2);
/* if we just compared std.properties, don't do it again */
if (result == 0 &&
!(ht1 == intern1->std.properties && ht2 == intern2->std.properties)) {
result = zend_std_compare_objects(o1, o2);
}
return result;
} /* }}} */
static int spl_array_skip_protected(spl_array_object *intern, HashTable *aht) /* {{{ */
{
zend_string *string_key;
zend_ulong num_key;
zval *data;
if (spl_array_is_object(intern)) {
uint32_t *pos_ptr = spl_array_get_pos_ptr(aht, intern);
do {
if (zend_hash_get_current_key_ex(aht, &string_key, &num_key, pos_ptr) == HASH_KEY_IS_STRING) {
data = zend_hash_get_current_data_ex(aht, pos_ptr);
if (data && Z_TYPE_P(data) == IS_INDIRECT &&
Z_TYPE_P(data = Z_INDIRECT_P(data)) == IS_UNDEF) {
/* skip */
} else if (!ZSTR_LEN(string_key) || ZSTR_VAL(string_key)[0]) {
return SUCCESS;
}
} else {
return SUCCESS;
}
if (zend_hash_has_more_elements_ex(aht, pos_ptr) != SUCCESS) {
return FAILURE;
}
zend_hash_move_forward_ex(aht, pos_ptr);
} while (1);
}
return FAILURE;
} /* }}} */
static int spl_array_next_ex(spl_array_object *intern, HashTable *aht) /* {{{ */
{
uint32_t *pos_ptr = spl_array_get_pos_ptr(aht, intern);
zend_hash_move_forward_ex(aht, pos_ptr);
if (spl_array_is_object(intern)) {
return spl_array_skip_protected(intern, aht);
} else {
return zend_hash_has_more_elements_ex(aht, pos_ptr);