root/Zend/zend_iterators.c

DEFINITIONS

1. zend_register_iterator_wrapper
2. iter_wrapper_dtor
3. zend_iterator_wrap
4. zend_iterator_unwrap

/*
   +----------------------------------------------------------------------+
   | Zend Engine                                                          |
   +----------------------------------------------------------------------+
   | Copyright (c) 1998-2008 Zend Technologies Ltd. (http://www.zend.com) |
   +----------------------------------------------------------------------+
   | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt.                                |
   | If you did not receive a copy of the Zend license and are unable to  |
   | obtain it through the world-wide-web, please send a note to          |
   | license@zend.com so we can mail you a copy immediately.              |
   +----------------------------------------------------------------------+
   | Author: Wez Furlong <wez@thebrainroom.com>                           |
   |         Marcus Boerger <helly@php.net>                               |
   +----------------------------------------------------------------------+
*/

/* $Id: zend_iterators.c,v 1.12.2.1.2.3 2007/12/31 07:20:03 sebastian Exp $ */

#include "zend.h"
#include "zend_API.h"

static zend_class_entry zend_iterator_class_entry;

static zend_object_handlers iterator_object_handlers = {
        ZEND_OBJECTS_STORE_HANDLERS,
        NULL, /* prop read */
        NULL, /* prop write */
        NULL, /* read dim */
        NULL, /* write dim */
        NULL,
        NULL, /* get */
        NULL, /* set */
        NULL, /* has prop */
        NULL, /* unset prop */
        NULL, /* has dim */
        NULL, /* unset dim */
        NULL, /* props get */
        NULL, /* method get */
        NULL, /* call */
        NULL, /* get ctor */
        NULL, /* get_ce */
        NULL, /* get class name */
        NULL, /* compare */
        NULL, /* cast */
        NULL  /* count */
};

ZEND_API void zend_register_iterator_wrapper(TSRMLS_D)
{
        INIT_CLASS_ENTRY(zend_iterator_class_entry, "__iterator_wrapper", NULL);
        free(zend_iterator_class_entry.name);
        zend_iterator_class_entry.name = "__iterator_wrapper";
}

static void iter_wrapper_dtor(void *object, zend_object_handle handle TSRMLS_DC)
{
        zend_object_iterator *iter = (zend_object_iterator*)object;
        iter->funcs->dtor(iter TSRMLS_CC);
}

ZEND_API zval *zend_iterator_wrap(zend_object_iterator *iter TSRMLS_DC)
{
        zval *wrapped;

        MAKE_STD_ZVAL(wrapped);
        Z_TYPE_P(wrapped) = IS_OBJECT;
        Z_OBJ_HANDLE_P(wrapped) = zend_objects_store_put(iter, iter_wrapper_dtor, NULL, NULL TSRMLS_CC);
        Z_OBJ_HT_P(wrapped) = &iterator_object_handlers;

        return wrapped;
}

ZEND_API enum zend_object_iterator_kind zend_iterator_unwrap(
        zval *array_ptr, zend_object_iterator **iter TSRMLS_DC)
{
        switch (Z_TYPE_P(array_ptr)) {
                case IS_OBJECT:
                        if (Z_OBJ_HT_P(array_ptr) == &iterator_object_handlers) {
                                *iter = (zend_object_iterator *)zend_object_store_get_object(array_ptr TSRMLS_CC);
                                return ZEND_ITER_OBJECT;
                        }
                        if (HASH_OF(array_ptr)) {
                                return ZEND_ITER_PLAIN_OBJECT;
                        }
                        return ZEND_ITER_INVALID;

                case IS_ARRAY:
                        if (HASH_OF(array_ptr)) {
                                return ZEND_ITER_PLAIN_ARRAY;
                        }
                        return ZEND_ITER_INVALID;

                default:
                        return ZEND_ITER_INVALID;
        }
}

/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * indent-tabs-mode: t
 * End:
 */