php-src/Zend/zend_interfaces.h
Nikita Popov ff19ec2df3 Introduce InternalIterator
Userland classes that implement Traversable must do so either
through Iterator or IteratorAggregate. The same requirement does
not exist for internal classes: They can implement the internal
get_iterator mechanism, without exposing either the Iterator or
IteratorAggregate APIs. This makes them usable in get_iterator(),
but incompatible with any Iterator based APIs.

A lot of internal classes do this, because exposing the userland
APIs is simply a lot of work. This patch alleviates this issue by
providing a generic InternalIterator class, which acts as an
adapater between get_iterator and Iterator, and can be easily
used by many internal classes. At the same time, we extend the
requirement that Traversable implies Iterator or IteratorAggregate
to internal classes as well.

Closes GH-5216.
2020-06-24 15:31:41 +02:00

86 lines
4.3 KiB
C

/*
+----------------------------------------------------------------------+
| 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. |
+----------------------------------------------------------------------+
| Authors: Marcus Boerger <helly@php.net> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_INTERFACES_H
#define ZEND_INTERFACES_H
#include "zend.h"
#include "zend_API.h"
BEGIN_EXTERN_C()
extern ZEND_API zend_class_entry *zend_ce_traversable;
extern ZEND_API zend_class_entry *zend_ce_aggregate;
extern ZEND_API zend_class_entry *zend_ce_iterator;
extern ZEND_API zend_class_entry *zend_ce_arrayaccess;
extern ZEND_API zend_class_entry *zend_ce_serializable;
extern ZEND_API zend_class_entry *zend_ce_countable;
extern ZEND_API zend_class_entry *zend_ce_stringable;
typedef struct _zend_user_iterator {
zend_object_iterator it;
zend_class_entry *ce;
zval value;
} zend_user_iterator;
ZEND_API zval* zend_call_method(zend_object *object, zend_class_entry *obj_ce, zend_function **fn_proxy, const char *function_name, size_t function_name_len, zval *retval, uint32_t param_count, zval* arg1, zval* arg2);
#define zend_call_method_with_0_params(obj, obj_ce, fn_proxy, function_name, retval) \
zend_call_method(obj, obj_ce, fn_proxy, function_name, sizeof(function_name)-1, retval, 0, NULL, NULL)
#define zend_call_method_with_1_params(obj, obj_ce, fn_proxy, function_name, retval, arg1) \
zend_call_method(obj, obj_ce, fn_proxy, function_name, sizeof(function_name)-1, retval, 1, arg1, NULL)
#define zend_call_method_with_2_params(obj, obj_ce, fn_proxy, function_name, retval, arg1, arg2) \
zend_call_method(obj, obj_ce, fn_proxy, function_name, sizeof(function_name)-1, retval, 2, arg1, arg2)
#define REGISTER_MAGIC_INTERFACE(class_name, class_name_str) \
{\
zend_class_entry ce;\
INIT_CLASS_ENTRY(ce, # class_name_str, class_ ## class_name_str ## _methods) \
zend_ce_ ## class_name = zend_register_internal_interface(&ce);\
zend_ce_ ## class_name->interface_gets_implemented = zend_implement_ ## class_name;\
}
#define REGISTER_MAGIC_IMPLEMENT(class_name, interface_name) \
zend_class_implements(zend_ce_ ## class_name, 1, zend_ce_ ## interface_name)
ZEND_API void zend_user_it_rewind(zend_object_iterator *_iter);
ZEND_API int zend_user_it_valid(zend_object_iterator *_iter);
ZEND_API void zend_user_it_get_current_key(zend_object_iterator *_iter, zval *key);
ZEND_API zval *zend_user_it_get_current_data(zend_object_iterator *_iter);
ZEND_API void zend_user_it_move_forward(zend_object_iterator *_iter);
ZEND_API void zend_user_it_invalidate_current(zend_object_iterator *_iter);
ZEND_API void zend_user_it_new_iterator(zend_class_entry *ce, zval *object, zval *iterator);
ZEND_API zend_object_iterator *zend_user_it_get_new_iterator(zend_class_entry *ce, zval *object, int by_ref);
ZEND_API void zend_register_interfaces(void);
ZEND_API int zend_user_serialize(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data);
ZEND_API int zend_user_unserialize(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data);
ZEND_API int zend_class_serialize_deny(zval *object, unsigned char **buffer, size_t *buf_len, zend_serialize_data *data);
ZEND_API int zend_class_unserialize_deny(zval *object, zend_class_entry *ce, const unsigned char *buf, size_t buf_len, zend_unserialize_data *data);
ZEND_API int zend_create_internal_iterator_zval(zval *return_value, zval *obj);
END_EXTERN_C()
#endif /* ZEND_INTERFACES_H */