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//opt/alt/php83/usr/include/php/Zend/zend_iterators.h
/* +----------------------------------------------------------------------+ | 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> | +----------------------------------------------------------------------+ */ /* These iterators were designed to operate within the foreach() * structures provided by the engine, but could be extended for use * with other iterative engine opcodes. * These methods have similar semantics to the zend_hash API functions * with similar names. * */ typedef struct _zend_object_iterator zend_object_iterator; typedef struct _zend_object_iterator_funcs { /* release all resources associated with this iterator instance */ void (*dtor)(zend_object_iterator *iter); /* check for end of iteration (FAILURE or SUCCESS if data is valid) */ int (*valid)(zend_object_iterator *iter); /* fetch the item data for the current element */ zval *(*get_current_data)(zend_object_iterator *iter); /* fetch the key for the current element (optional, may be NULL). The key * should be written into the provided zval* using the ZVAL_* macros. If * this handler is not provided auto-incrementing integer keys will be * used. */ void (*get_current_key)(zend_object_iterator *iter, zval *key); /* step forwards to next element */ void (*move_forward)(zend_object_iterator *iter); /* rewind to start of data (optional, may be NULL) */ void (*rewind)(zend_object_iterator *iter); /* invalidate current value/key (optional, may be NULL) */ void (*invalidate_current)(zend_object_iterator *iter); /* Expose owned values to GC. * This has the same semantics as the corresponding object handler. */ HashTable *(*get_gc)(zend_object_iterator *iter, zval **table, int *n); } zend_object_iterator_funcs; struct _zend_object_iterator { zend_object std; zval data; const zend_object_iterator_funcs *funcs; zend_ulong index; /* private to fe_reset/fe_fetch opcodes */ }; typedef struct _zend_class_iterator_funcs { zend_function *zf_new_iterator; zend_function *zf_valid; zend_function *zf_current; zend_function *zf_key; zend_function *zf_next; zend_function *zf_rewind; } zend_class_iterator_funcs; typedef struct _zend_class_arrayaccess_funcs { zend_function *zf_offsetget; zend_function *zf_offsetexists; zend_function *zf_offsetset; zend_function *zf_offsetunset; } zend_class_arrayaccess_funcs; BEGIN_EXTERN_C() /* given a zval, returns stuff that can be used to iterate it. */ ZEND_API zend_object_iterator* zend_iterator_unwrap(zval *array_ptr); /* given an iterator, wrap it up as a zval for use by the engine opcodes */ ZEND_API void zend_iterator_init(zend_object_iterator *iter); ZEND_API void zend_iterator_dtor(zend_object_iterator *iter); ZEND_API void zend_register_iterator_wrapper(void); END_EXTERN_C()
