id summary reporter owner description type status priority milestone component version resolution keywords cc difficulty 460 coops: anonymous classes can't be used as metaclasses Moritz Heidkamp felix winkelmann "This program reproduces the issue: {{{ (use coops) (define-class () () metaclass: (make-class () ((bar 1)))) (print (slot-value 'bar)) }}} It results in this error: {{{ Error: (slot-value) slot not found bar #'> }}}" defect closed minor 4.9.0 extensions 4.6.x invalid coops anonymous metaclasses