(let ((object (make-instance 'sbuc-mio-test-object)))
(slot-value object 'slot)))))))
(assert (= 1 *sbuc-counter*)))
+
+;;; Redefining classes so that slot definition class changes.
+(defclass func-slot-class (standard-class)
+ ())
+
+(defmethod sb-mop:validate-superclass ((class func-slot-class) (super standard-class))
+ t)
+
+(defclass func-slot-definition ()
+ ((function :initform nil :initarg :function :reader slotd-function)))
+
+(defclass effective-func-slot-definition (sb-mop:standard-effective-slot-definition
+ func-slot-definition)
+ ())
+
+(defclass direct-func-slot-definition (sb-mop:standard-direct-slot-definition
+ func-slot-definition)
+ ())
+
+(defmethod sb-mop:slot-value-using-class ((class func-slot-class)
+ instance
+ (slotd effective-func-slot-definition))
+ (funcall (slotd-function slotd) (call-next-method)))
+
+(defvar *func-slot*)
+
+(defmethod sb-mop:effective-slot-definition-class ((class func-slot-class) &key)
+ (if *func-slot*
+ (find-class 'effective-func-slot-definition)
+ (call-next-method)))
+
+(defmethod sb-mop:direct-slot-definition-class ((class func-slot-class) &key)
+ (find-class 'direct-func-slot-definition))
+
+(defmethod sb-mop:compute-effective-slot-definition ((class func-slot-class) name dslotds)
+ (let* ((*func-slot* (some #'slotd-function dslotds))
+ (slotd (call-next-method)))
+ (when *func-slot*
+ (setf (slot-value slotd 'function) (fdefinition *func-slot*)))
+ slotd))
+
+(with-test (:name :class-redefinition-changes-custom-slot-type)
+ (eval `(defclass func-slot-object ()
+ ((foo :initarg :foo :reader foofoo))
+ (:metaclass func-slot-class)))
+ (let ((x (cons t t)))
+ (assert (eq x (foofoo (make-instance 'func-slot-object :foo x)))))
+ (eval `(defclass func-slot-object ()
+ ((foo :initarg :foo :reader foofoo :function car))
+ (:metaclass func-slot-class)))
+ (let* ((x (cons t t))
+ (y (list x)))
+ (assert (eq x (foofoo (make-instance 'func-slot-object :foo y))))))
+
+(with-test (:name :class-redefinition-changes-custom-slot-type-mio)
+ (eval `(defclass func-slot-object2 ()
+ ((foo :initarg :foo :reader foofoo))
+ (:metaclass func-slot-class)))
+ (let* ((x (cons t t))
+ (y (cons x x))
+ (o (make-instance 'func-slot-object2 :foo y)))
+ (assert (eq y (foofoo o)))
+ (eval `(defclass func-slot-object2 ()
+ ((foo :initarg :foo :reader foofoo :function car))
+ (:metaclass func-slot-class)))
+ (assert (eq x (foofoo o)))))
+
+(defclass class-slot-removal-test ()
+ ((instance :initform 1)
+ (class :allocation :class :initform :ok)))
+
+(defmethod update-instance-for-redefined-class ((x class-slot-removal-test) added removed plist &rest inits)
+ (throw 'update-instance
+ (list added removed plist inits)))
+
+(with-test (:name :class-redefinition-removes-class-slot)
+ (let ((o (make-instance 'class-slot-removal-test)))
+ (assert (equal '(nil nil nil nil)
+ (catch 'update-instance
+ (eval `(defclass class-slot-removal-test ()
+ ((instance :initform 2))))
+ (slot-value o 'instance))))))
+
+(defclass class-slot-add-test ()
+ ((instance :initform 1)))
+
+(defmethod update-instance-for-redefined-class ((x class-slot-add-test) added removed plist &rest inits)
+ (throw 'update-instance
+ (list added removed plist inits)))
+
+(with-test (:name :class-redefinition-adds-class-slot)
+ (let ((o (make-instance 'class-slot-add-test)))
+ (assert (equal '(nil nil nil nil)
+ (catch 'update-instance
+ (eval `(defclass class-slot-add-test ()
+ ((instance :initform 2)
+ (class :allocation :class :initform :ok))))
+ (slot-value o 'instance))))))
\f
;;;; success