xref: /PHP-7.1/Zend/zend_iterators.c (revision ccd4716e)
1 /*
2    +----------------------------------------------------------------------+
3    | Zend Engine                                                          |
4    +----------------------------------------------------------------------+
5    | Copyright (c) 1998-2018 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    | Author: Wez Furlong <wez@thebrainroom.com>                           |
16    |         Marcus Boerger <helly@php.net>                               |
17    +----------------------------------------------------------------------+
18 */
19 
20 /* $Id$ */
21 
22 #include "zend.h"
23 #include "zend_API.h"
24 
25 static zend_class_entry zend_iterator_class_entry;
26 
27 static void iter_wrapper_free(zend_object *object);
28 static void iter_wrapper_dtor(zend_object *object);
29 
30 static zend_object_handlers iterator_object_handlers = {
31 	0,
32 	iter_wrapper_free,
33 	iter_wrapper_dtor,
34 	NULL,
35 	NULL, /* prop read */
36 	NULL, /* prop write */
37 	NULL, /* read dim */
38 	NULL, /* write dim */
39 	NULL,
40 	NULL, /* get */
41 	NULL, /* set */
42 	NULL, /* has prop */
43 	NULL, /* unset prop */
44 	NULL, /* has dim */
45 	NULL, /* unset dim */
46 	NULL, /* props get */
47 	NULL, /* method get */
48 	NULL, /* call */
49 	NULL, /* get ctor */
50 	NULL, /* get class name */
51 	NULL, /* compare */
52 	NULL, /* cast */
53 	NULL, /* count */
54 	NULL, /* get_debug_info */
55 	NULL, /* get_closure */
56 	NULL, /* get_gc */
57 	NULL, /* do_operation */
58 	NULL  /* compare */
59 };
60 
zend_register_iterator_wrapper(void)61 ZEND_API void zend_register_iterator_wrapper(void)
62 {
63 	INIT_CLASS_ENTRY(zend_iterator_class_entry, "__iterator_wrapper", NULL);
64 }
65 
iter_wrapper_free(zend_object * object)66 static void iter_wrapper_free(zend_object *object)
67 {
68 	zend_object_iterator *iter = (zend_object_iterator*)object;
69 	iter->funcs->dtor(iter);
70 }
71 
iter_wrapper_dtor(zend_object * object)72 static void iter_wrapper_dtor(zend_object *object)
73 {
74 }
75 
zend_iterator_init(zend_object_iterator * iter)76 ZEND_API void zend_iterator_init(zend_object_iterator *iter)
77 {
78 	zend_object_std_init(&iter->std, &zend_iterator_class_entry);
79 	iter->std.handlers = &iterator_object_handlers;
80 }
81 
zend_iterator_dtor(zend_object_iterator * iter)82 ZEND_API void zend_iterator_dtor(zend_object_iterator *iter)
83 {
84 	if (--GC_REFCOUNT(&iter->std) > 0) {
85 		return;
86 	}
87 
88 	zend_objects_store_del(&iter->std);
89 }
90 
zend_iterator_unwrap(zval * array_ptr)91 ZEND_API zend_object_iterator* zend_iterator_unwrap(zval *array_ptr)
92 {
93 	ZEND_ASSERT(Z_TYPE_P(array_ptr) == IS_OBJECT);
94 	if (Z_OBJ_HT_P(array_ptr) == &iterator_object_handlers) {
95 		return (zend_object_iterator *)Z_OBJ_P(array_ptr);
96 	}
97 	return NULL;
98 }
99 
100 /*
101  * Local variables:
102  * tab-width: 4
103  * c-basic-offset: 4
104  * indent-tabs-mode: t
105  * End:
106  */
107