- ((direct-methods :initform nil
- :accessor %specializer-direct-methods
- :reader specializer-direct-methods)))
+ ((direct-methods-table :allocation :class
+ :initform nil :accessor direct-methods-table)))
+
+(defmethod sb-mop:add-direct-method ((specializer extended-specializer) method)
+ (let* ((table (direct-methods-table specializer))
+ (cell (assoc specializer table :test #'sb-pcl::same-specializer-p)))
+ (unless cell
+ (setf cell (cons specializer nil))
+ (push cell (direct-methods-table specializer)))
+ (push method (cdr cell))))
+
+(defmethod sb-mop:remove-direct-method ((specializer extended-specializer) method)
+ (let* ((table (direct-methods-table specializer))
+ (cell (assoc specializer table :test #'sb-pcl::same-specializer-p)))
+ (setf (cdr cell) (remove method (cdr cell)))))
+
+(defmethod sb-mop:specializer-direct-methods ((specializer extended-specializer))
+ (cdr (assoc specializer (direct-methods-table specializer)
+ :test #'sb-pcl::same-specializer-p)))
+(defmethod sb-mop:specializer-direct-generic-functions ((specializer extended-specializer))
+ (remove-duplicates (mapcar #'sb-mop:method-generic-function (sb-mop:specializer-direct-methods specializer))))