本文支援建立最簡單的物件
struct _zend_object {
zend_refcounted_h gc; //引用計數
uint32_t handle; // TODO: may be removed ???
zend_class_entry *ce; //所屬類
const zend_object_handlers *handlers; //物件操作處理函式
HashTable *properties;
zval properties_table[1]; //普通屬性值陣列
};struct _zend_object_handlers {
/* offset of real object header (usually zero) */
int offset;
/* general object functions */
zend_object_free_obj_t free_obj;
zend_object_dtor_obj_t dtor_obj;
zend_object_clone_obj_t clone_obj;
/* individual object functions */
zend_object_read_property_t read_property;
zend_object_write_property_t write_property;
zend_object_read_dimension_t read_dimension;
zend_object_write_dimension_t write_dimension;
zend_object_get_property_ptr_ptr_t get_property_ptr_ptr;
zend_object_get_t get;
zend_object_set_t set;
zend_object_has_property_t has_property;
zend_object_unset_property_t unset_property;
zend_object_has_dimension_t has_dimension;
zend_object_unset_dimension_t unset_dimension;
zend_object_get_properties_t get_properties;
zend_object_get_method_t get_method;
zend_object_call_method_t call_method;
zend_object_get_constructor_t get_constructor;
zend_object_get_class_name_t get_class_name;
zend_object_compare_t compare_objects;
zend_object_cast_t cast_object;
zend_object_count_elements_t count_elements;
zend_object_get_debug_info_t get_debug_info;
zend_object_get_closure_t get_closure;
zend_object_get_gc_t get_gc;
zend_object_do_operation_t do_operation;
zend_object_compare_zvals_t compare;
};typedef union _zend_function *(*zend_object_get_constructor_t)(zend_object *object);ZEND_API zend_object_handlers std_object_handlers = {
0, /* offset */
zend_object_std_dtor, /* free_obj */
zend_objects_destroy_object, /* dtor_obj */
zend_objects_clone_obj, /* clone_obj */
zend_std_read_property, /* read_property */
zend_std_write_property, /* write_property */
zend_std_read_dimension, /* read_dimension */
zend_std_write_dimension, /* write_dimension */
zend_std_get_property_ptr_ptr, /* get_property_ptr_ptr */
NULL, /* get */
NULL, /* set */
zend_std_has_property, /* has_property */
zend_std_unset_property, /* unset_property */
zend_std_has_dimension, /* has_dimension */
zend_std_unset_dimension, /* unset_dimension */
zend_std_get_properties, /* get_properties */
zend_std_get_method, /* get_method */
NULL, /* call_method */
zend_std_get_constructor, /* get_constructor */
zend_std_object_get_class_name, /* get_class_name */
zend_std_compare_objects, /* compare_objects */
zend_std_cast_object_tostring, /* cast_object */
NULL, /* count_elements */
zend_std_get_debug_info, /* get_debug_info */
zend_std_get_closure, /* get_closure */
zend_std_get_gc, /* get_gc */
NULL, /* do_operation */
NULL, /* compare */
};ZEND_API union _zend_function *zend_std_get_constructor(zend_object *zobj) /* {{{ */
{
zend_function *constructor = zobj->ce->constructor;
zend_class_entry *scope;
if (constructor) {
if (constructor->op_array.fn_flags & ZEND_ACC_PUBLIC) {
//公共方法
/* No further checks necessary */
} else if (constructor->op_array.fn_flags & ZEND_ACC_PRIVATE) {
//私有方法
/* Ensure that if we're calling a private function, we're allowed to do so.
*/
if (EG(fake_scope)) {
scope = EG(fake_scope);
} else {
scope = zend_get_executed_scope();
}
if (UNEXPECTED(constructor->common.scope != scope)) {
if (scope) {
zend_throw_error(NULL, "Call to private %s::%s() from context '%s'", ZSTR_VAL(constructor->common.scope->name), ZSTR_VAL(constructor->common.function_name), ZSTR_VAL(scope->name));
constructor = NULL;
} else {
zend_throw_error(NULL, "Call to private %s::%s() from invalid context", ZSTR_VAL(constructor->common.scope->name), ZSTR_VAL(constructor->common.function_name));
constructor = NULL;
}
}
} else if ((constructor->common.fn_flags & ZEND_ACC_PROTECTED)) {
/* Ensure that if we're calling a protected function, we're allowed to do so.
* Constructors only have prototype if they are defined by an interface but
* it is the compilers responsibility to take care of the prototype.
*/
if (EG(fake_scope)) {
scope = EG(fake_scope);
} else {
scope = zend_get_executed_scope();
}
if (UNEXPECTED(!zend_check_protected(zend_get_function_root_class(constructor), scope))) {
if (scope) {
zend_throw_error(NULL, "Call to protected %s::%s() from context '%s'", ZSTR_VAL(constructor->common.scope->name), ZSTR_VAL(constructor->common.function_name), ZSTR_VAL(scope->name));
constructor = NULL;
} else {
zend_throw_error(NULL, "Call to protected %s::%s() from invalid context", ZSTR_VAL(constructor->common.scope->name), ZSTR_VAL(constructor->common.function_name));
constructor = NULL;
}
}
}
}
return constructor;
}本作品採用《CC 協議》，轉載必須註明作者和本文連結