-(defmethod (setf slot-value-using-class)
- :around (new-value (cl hyperobject-class) obj
- (slot standard-effective-slot-definition))
- (call-next-method))
+#+ignore
+(defmethod (setf slot-value-using-class) :around
+ (new-value (cl hyperobject-class) obj (slot hyperobject-esd))
+ ;; this does not work on gerd-pcl in cmu 18e+
+ (esd-value-constraint slot)
+ (call-next-method))
+
+;; required for cmucl18e+ work-around
+(defun do-svuc (new-value cl obj slot)
+
+ #+ignore
+ (cmsg-c :verbose "Setf slot value: class: ~s, obj: ~s, slot: ~s, value: ~s" cl (class-of obj) slot new-value)
+
+ (let ((func (esd-value-constraint slot)))
+ (cond
+ ((and func (not (funcall func new-value)))
+ (warn "Rejected change to value of slot ~a of object ~a"
+ (slot-definition-name slot) obj)
+ (values (slot-value obj (slot-definition-name slot)) nil)
+ (t
+ (values new-value t))))))
+