+;;; Bits of FUNCALLABLE-STANDARD-CLASS are easy to break; make sure
+;;; that it is at least possible to define classes with that as a
+;;; metaclass.
+(defclass gf-class (standard-generic-function) ()
+ (:metaclass sb-pcl::funcallable-standard-class))
+(defgeneric g (a b c)
+ (:generic-function-class gf-class))
+\f
+;;; until sbcl-0.7.12.47, PCL wasn't aware of some direct class
+;;; relationships. These aren't necessarily true, but are probably
+;;; not going to change often.
+(dolist (x '(number array sequence character symbol))
+ (assert (eq (car (sb-pcl:class-direct-superclasses (find-class x)))
+ (find-class t)))
+ (assert (member (find-class x)
+ (sb-pcl:class-direct-subclasses (find-class t)))))
+\f