+;;; bug reported by David Morse: direct-subclass update protocol was broken
+(defclass vegetable () ())
+(defclass tomato (vegetable) ())
+(assert (equal (list (find-class 'tomato)) (sb-mop:class-direct-subclasses (find-class 'vegetable))))
+(defclass tomato () ())
+(assert (null (sb-mop:class-direct-subclasses (find-class 'vegetable))))
+
+;;; bug 331: lazy creation of clos classes for defstructs
+(defstruct bug-331-super)
+(defstruct (bug-331-sub (:include bug-331-super)))
+(let ((subs (sb-mop:class-direct-subclasses (find-class 'bug-331-super))))
+ (assert (= 1 (length subs)))
+ (assert (eq (car subs) (find-class 'bug-331-sub))))
+
+;;; detection of multiple class options in defclass, reported by Bruno Haible
+(defclass option-class (standard-class)
+ ((option :accessor cl-option :initarg :my-option)))
+(defmethod sb-pcl:validate-superclass ((c1 option-class) (c2 standard-class))
+ t)
+(multiple-value-bind (result error)
+ (ignore-errors (eval '(defclass option-class-instance ()
+ ()
+ (:my-option bar)
+ (:my-option baz)
+ (:metaclass option-class))))
+ (assert (not result))
+ (assert error))
+
+;;; class as :metaclass
+(assert (typep
+ (sb-mop:ensure-class-using-class
+ nil 'class-as-metaclass-test
+ :metaclass (find-class 'standard-class)
+ :name 'class-as-metaclass-test
+ :direct-superclasses (list (find-class 'standard-object)))
+ 'class))
+\f
+;;; COMPUTE-DEFAULT-INITARGS protocol mismatch reported by Bruno
+;;; Haible
+(defparameter *extra-initarg-value* 'extra)
+(defclass custom-default-initargs-class (standard-class)
+ ())
+(defmethod compute-default-initargs ((class custom-default-initargs-class))
+ (let ((original-default-initargs
+ (remove-duplicates
+ (reduce #'append
+ (mapcar #'class-direct-default-initargs
+ (class-precedence-list class)))
+ :key #'car
+ :from-end t)))
+ (cons (list ':extra '*extra-initarg-value* #'(lambda () *extra-initarg-value*))
+ (remove ':extra original-default-initargs :key #'car))))
+(defmethod validate-superclass ((c1 custom-default-initargs-class)
+ (c2 standard-class))
+ t)
+(defclass extra-initarg ()
+ ((slot :initarg :extra))
+ (:metaclass custom-default-initargs-class))
+(assert (eq (slot-value (make-instance 'extra-initarg) 'slot) 'extra))