/*

   +----------------------------------------------------------------------+

   | Zend Engine                                                          |

   +----------------------------------------------------------------------+

   | Copyright (c) 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>                               |

   +----------------------------------------------------------------------+

*/

#include "zend.h"

#include "zend_API.h"

static zend_class_entry zend_iterator_class_entry;

static void iter_wrapper_free(zend_object *object);

static void iter_wrapper_dtor(zend_object *object);

static HashTable *iter_wrapper_get_gc(zend_object *object, zval **table, int *n);

static const zend_object_handlers iterator_object_handlers = {

  0,

  iter_wrapper_free,

  iter_wrapper_dtor,

  NULL, /* clone_obj */

  NULL, /* clone_obj_with */

  NULL, /* prop read */

  NULL, /* prop write */

  NULL, /* read dim */

  NULL, /* write dim */

  NULL, /* get_property_ptr_ptr */

  NULL, /* has prop */

  NULL, /* unset prop */

  NULL, /* has dim */

  NULL, /* unset dim */

  NULL, /* props get */

  NULL, /* method get */

  NULL, /* get ctor */

  NULL, /* get class name */

  NULL, /* cast */

  NULL, /* count */

  NULL, /* get_debug_info */

  NULL, /* get_closure */

  iter_wrapper_get_gc,

  NULL, /* do_operation */

  NULL, /* compare */

  NULL  /* get_properties_for */

};

ZEND_API void zend_register_iterator_wrapper(void)

{

  INIT_CLASS_ENTRY(zend_iterator_class_entry, "__iterator_wrapper", NULL);

  zend_iterator_class_entry.default_object_handlers = &iterator_object_handlers;

}

static void iter_wrapper_free(zend_object *object)

{

  zend_object_iterator *iter = (zend_object_iterator*)object;

  iter->funcs->dtor(iter);

}

static void iter_wrapper_dtor(zend_object *object)

{

}

static HashTable *iter_wrapper_get_gc(zend_object *object, zval **table, int *n) {

  zend_object_iterator *iter = (zend_object_iterator*)object;

  if (iter->funcs->get_gc) {

    return iter->funcs->get_gc(iter, table, n);

  }

  *table = NULL;

  *n = 0;

  return NULL;

}

ZEND_API void zend_iterator_init(zend_object_iterator *iter)

{

  zend_object_std_init(&iter->std, &zend_iterator_class_entry);

}

ZEND_API void zend_iterator_dtor(zend_object_iterator *iter)

{

  if (GC_DELREF(&iter->std) > 0) {

    return;

  }

  zend_objects_store_del(&iter->std);

}

ZEND_API zend_object_iterator* zend_iterator_unwrap(zval *array_ptr)

{

  ZEND_ASSERT(Z_TYPE_P(array_ptr) == IS_OBJECT);

  if (Z_OBJ_HT_P(array_ptr) == &iterator_object_handlers) {

    return (zend_object_iterator *)Z_OBJ_P(array_ptr);

  }

  return NULL;

}