示例#1
0
static void spl_dllist_it_helper_move_forward(spl_ptr_llist_element **traverse_pointer_ptr, int *traverse_position_ptr, spl_ptr_llist *llist, int flags) /* {{{ */
{
	if (*traverse_pointer_ptr) {
		spl_ptr_llist_element *old = *traverse_pointer_ptr;

		if (flags & SPL_DLLIST_IT_LIFO) {
			*traverse_pointer_ptr = old->prev;
			(*traverse_position_ptr)--;

			if (flags & SPL_DLLIST_IT_DELETE) {
				zval prev;
				spl_ptr_llist_pop(llist, &prev);

				zval_ptr_dtor(&prev);
			}
		} else {
			*traverse_pointer_ptr = old->next;

			if (flags & SPL_DLLIST_IT_DELETE) {
				zval prev;
				spl_ptr_llist_shift(llist, &prev);

				zval_ptr_dtor(&prev);
			} else {
				(*traverse_position_ptr)++;
			}
		}

		SPL_LLIST_DELREF(old);
		SPL_LLIST_CHECK_ADDREF(*traverse_pointer_ptr);
	}
}
示例#2
0
zend_object_iterator *spl_dllist_get_iterator(zend_class_entry *ce, zval *object, int by_ref) /* {{{ */
{
	spl_dllist_it *iterator;
	spl_dllist_object *dllist_object = Z_SPLDLLIST_P(object);

	if (by_ref) {
		zend_throw_exception(spl_ce_RuntimeException, "An iterator cannot be used with foreach by reference", 0);
		return NULL;
	}

	iterator = emalloc(sizeof(spl_dllist_it));

	zend_iterator_init((zend_object_iterator*)iterator);
	
	ZVAL_COPY(&iterator->intern.it.data, object);
	iterator->intern.it.funcs    = &spl_dllist_it_funcs;
	iterator->intern.ce          = ce;
	iterator->traverse_position  = dllist_object->traverse_position;
	iterator->traverse_pointer   = dllist_object->traverse_pointer;
	iterator->flags              = dllist_object->flags & SPL_DLLIST_IT_MASK;
	ZVAL_UNDEF(&iterator->intern.value);

	SPL_LLIST_CHECK_ADDREF(iterator->traverse_pointer);

	return &iterator->intern.it;
}
示例#3
0
static void spl_dllist_it_helper_rewind(spl_ptr_llist_element **traverse_pointer_ptr, int *traverse_position_ptr, spl_ptr_llist *llist, int flags) /* {{{ */
{
	SPL_LLIST_CHECK_DELREF(*traverse_pointer_ptr);

	if (flags & SPL_DLLIST_IT_LIFO) {
		*traverse_position_ptr = llist->count-1;
		*traverse_pointer_ptr  = llist->tail;
	} else {
		*traverse_position_ptr = 0;
		*traverse_pointer_ptr  = llist->head;
	}

	SPL_LLIST_CHECK_ADDREF(*traverse_pointer_ptr);
}
示例#4
0
static zend_object *spl_dllist_object_new_ex(zend_class_entry *class_type, zend_object *orig, int clone_orig) /* {{{ */
{
	spl_dllist_object *intern;
	zend_class_entry  *parent = class_type;
	int                inherited = 0;

	intern = zend_object_alloc(sizeof(spl_dllist_object), parent);

	zend_object_std_init(&intern->std, class_type);
	object_properties_init(&intern->std, class_type);

	intern->flags = 0;
	intern->traverse_position = 0;

	if (orig) {
		spl_dllist_object *other = spl_dllist_from_obj(orig);
		intern->ce_get_iterator = other->ce_get_iterator;

		if (clone_orig) {
			intern->llist = (spl_ptr_llist *)spl_ptr_llist_init(other->llist->ctor, other->llist->dtor);
			spl_ptr_llist_copy(other->llist, intern->llist);
			intern->traverse_pointer  = intern->llist->head;
			SPL_LLIST_CHECK_ADDREF(intern->traverse_pointer);
		} else {
			intern->llist = other->llist;
			intern->traverse_pointer  = intern->llist->head;
			SPL_LLIST_CHECK_ADDREF(intern->traverse_pointer);
		}

		intern->flags = other->flags;
	} else {
		intern->llist = (spl_ptr_llist *)spl_ptr_llist_init(spl_ptr_llist_zval_ctor, spl_ptr_llist_zval_dtor);
		intern->traverse_pointer  = intern->llist->head;
		SPL_LLIST_CHECK_ADDREF(intern->traverse_pointer);
	}

	while (parent) {
		if (parent == spl_ce_SplStack) {
			intern->flags |= (SPL_DLLIST_IT_FIX | SPL_DLLIST_IT_LIFO);
			intern->std.handlers = &spl_handler_SplDoublyLinkedList;
		} else if (parent == spl_ce_SplQueue) {
			intern->flags |= SPL_DLLIST_IT_FIX;
			intern->std.handlers = &spl_handler_SplDoublyLinkedList;
		}

		if (parent == spl_ce_SplDoublyLinkedList) {
			intern->std.handlers = &spl_handler_SplDoublyLinkedList;
			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 SplDoublyLinkedList");
	}
	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;
		}
	}

	return &intern->std;
}