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/*
+--------------------------------------------------------------------+
| PECL :: propro |
+--------------------------------------------------------------------+
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the conditions mentioned |
| in the accompanying LICENSE file are met. |
+--------------------------------------------------------------------+
| Copyright (c) 2013 Michael Wallner <mike@php.net> |
+--------------------------------------------------------------------+
*/
#ifndef PHP_PROPRO_API_H
#define PHP_PROPRO_API_H
#include "php_propro.h"
/**
* The internal property proxy.
*
* Container for the object/array holding the proxied property.
*/
struct php_property_proxy {
/** The reference to the container holding the property */
zval container;
/** The name of the proxied property */
zend_string *member;
};
typedef struct php_property_proxy php_property_proxy_t;
/**
* The userland object.
*
* Return an object instance of php\\PropertyProxy to make your C-struct
* member accessible by reference from PHP userland.
*
* Example:
* \code{.c}
* static zval *my_read_prop(zval *object, zval *member, int type, void **cache_slot, zval *tmp)
* {
* zval *return_value;
* zend_string *member_name = zval_get_string(member);
* my_prophandler_t *handler = my_get_prophandler(member_name);
*
* if (!handler || type == BP_VAR_R || type == BP_VAR_IS) {
* return_value = zend_get_std_object_handlers()->read_property(object, member, type, cache_slot, tmp);
*
* if (handler) {
* handler->read(object, return_value);
* }
* } else {
* php_property_proxy_t *proxy;
* php_property_proxy_object_t *proxy_obj;
*
* proxy = php_property_proxy_init(object, member_name);
* proxy_obj = php_property_proxy_object_new_ex(NULL, proxy);
*
* ZVAL_OBJ(tmp, &proxy_obj->zo);
* return_value = tmp;
* }
*
* zend_string_release(member_name);
*
* return return_value;
* }
* \endcode
*/
struct php_property_proxy_object {
/** The actual property proxy */
php_property_proxy_t *proxy;
/** Any parent property proxy object */
zval parent;
/** The std zend_object */
zend_object zo;
};
typedef struct php_property_proxy_object php_property_proxy_object_t;
/**
* Create a property proxy
*
* The property proxy will forward reads and writes to itself to the
* proxied property with name \a member_str of \a container.
*
* @param container the container holding the property
* @param member the name of the proxied property
* @return a new property proxy
*/
PHP_PROPRO_API php_property_proxy_t *php_property_proxy_init(zval *container,
zend_string *member);
/**
* Destroy and free a property proxy.
*
* The destruction of the property proxy object calls this.
*
* @param proxy a pointer to the allocated property proxy
*/
PHP_PROPRO_API void php_property_proxy_free(php_property_proxy_t **proxy);
/**
* Get the zend_class_entry of php\\PropertyProxy
* @return the class entry pointer
*/
PHP_PROPRO_API zend_class_entry *php_property_proxy_get_class_entry(void);
/**
* Instantiate a new php\\PropertyProxy
* @param ce the property proxy or derived class entry
* @return the zend object
*/
PHP_PROPRO_API zend_object *php_property_proxy_object_new(zend_class_entry *ce);
/**
* Instantiate a new php\\PropertyProxy with \a proxy
* @param ce the property proxy or derived class entry
* @param proxy the internal property proxy
* @return the property proxy
*/
PHP_PROPRO_API php_property_proxy_object_t *php_property_proxy_object_new_ex(
zend_class_entry *ce, php_property_proxy_t *proxy);
#endif /* PHP_PROPRO_API_H */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
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