Expected: #<SB-MOP:FUNCALLABLE-STANDARD-CLASS STANDARD-GENERIC-FUNCTION>
Got: #<SB-MOP:FUNCALLABLE-STANDARD-CLASS MY-GENERIC-FUNCTION>
-361: initialize-instance of standard-reader-method ignores :function argument
- (reported by Bruno Haible)
- Pass a custom :function argument to initialize-instance of a
- standard-reader-method instance, but it has no effect.
- ;; Check that it's possible to define reader methods that do typechecking.
- (progn
- (defclass typechecking-reader-method (sb-pcl:standard-reader-method)
- ())
- (defmethod initialize-instance ((method typechecking-reader-method) &rest initargs
- &key slot-definition)
- (let ((name (sb-pcl:slot-definition-name slot-definition))
- (type (sb-pcl:slot-definition-type slot-definition)))
- (apply #'call-next-method method
- :function #'(lambda (args next-methods)
- (declare (ignore next-methods))
- (apply #'(lambda (instance)
- (let ((value (slot-value instance name)))
- (unless (typep value type)
- (error "Slot ~S of ~S is not of type ~S: ~S"
- name instance type value))
- value))
- args))
- initargs)))
- (defclass typechecking-reader-class (standard-class)
- ())
- (defmethod sb-pcl:validate-superclass ((c1 typechecking-reader-class) (c2 standard-class))
- t)
- (defmethod reader-method-class ((class typechecking-reader-class) direct-slot &rest args)
- (find-class 'typechecking-reader-method))
- (defclass testclass25 ()
- ((pair :type (cons symbol (cons symbol null)) :initarg :pair :accessor testclass25-pair))
- (:metaclass typechecking-reader-class))
- (macrolet ((succeeds (form)
- `(not (nth-value 1 (ignore-errors ,form)))))
- (let ((p (list 'abc 'def))
- (x (make-instance 'testclass25)))
- (list (succeeds (make-instance 'testclass25 :pair '(seventeen 17)))
- (succeeds (setf (testclass25-pair x) p))
- (succeeds (setf (second p) 456))
- (succeeds (testclass25-pair x))
- (succeeds (slot-value x 'pair))))))
- Expected: (t t t nil t)
- Got: (t t t t t)
-
- (inspect (first (sb-pcl:generic-function-methods #'testclass25-pair)))
- shows that the method was created with a FAST-FUNCTION slot but with a
- FUNCTION slot of NIL.
-
362: missing error when a slot-definition is created without a name
(reported by Bruno Haible)
The MOP says about slot-definition initialization: