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;;;; miscellaneous side-effectful tests of the MOP
;;;; This software is part of the SBCL system. See the README file for
;;;; more information.
;;;;
;;;; While most of SBCL is derived from the CMU CL system, the test
;;;; files (like this one) were written from scratch after the fork
;;;; from CMU CL.
;;;;
;;;; This software is in the public domain and is provided with
;;;; absolutely no warranty. See the COPYING and CREDITS files for
;;;; more information.
;;; a test that metaclasses can be instantiated even if there are
;;; applicable methods for SLOT-VALUE-USING-CLASS with specialized
;;; arguments that invoke slot readers. (Previously the PV
;;; optimization for slot readers caused the new class's wrapper and
;;; effective slot definitions to be available during class
;;; finalization)
(defclass my-class (standard-class)
())
(defmethod sb-mop:validate-superclass ((class my-class) (super-class standard-class))
t)
(defvar *foo*)
;;; the specialization of OBJECT here triggers the PV optimization;
;;; with an unspecialized argument, the SLOT-VALUE is not optimized.
(defmethod sb-mop:slot-value-using-class
((class my-class) (object standard-object) eslotd)
(if *foo*
(setf (slot-value object 'id) 42)
(call-next-method)))
(defclass my-object ()
((id :type integer :reader id-of))
(:metaclass my-class))
;;; the first patch failed on code like this, because the STD-P field
;;; of the accessor information was also computed lazily, but it is
;;; needed in order to real with accessor cache misses.
(defun test-global-accessors ()
(let ((object (make-instance 'my-object)))
(setf (slot-value object 'id) 13)
(let ((*foo* nil))
(assert (= (id-of object) 13))
(assert (= (slot-value object 'id) 13)))
(let ((*foo* t))
(assert (= (id-of object) 42))
(assert (= (slot-value object 'id) 42)))
(let ((*foo* nil))
(assert (= (id-of object) 42))
(assert (= (slot-value object 'id) 42)))))
(compile 'test-global-accessors)
(with-test (:name (:mop-29))
(test-global-accessors))
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