42 lines
1.1 KiB
Common Lisp
42 lines
1.1 KiB
Common Lisp
(defclass class_a ()
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((a
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:initarg :a
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:initform (make-array 10 :initial-element 0)
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:accessor a)))
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(defclass class_b (class_a)
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((b
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:initform (make-array 10 :initial-element 0)
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:initarg b
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:accessor b)))
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(defgeneric dothing (class data)
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(:method-combination progn :most-specific-last))
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(defmethod dothing progn ((class class_a) data)
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(loop for i from 0 to 9 do (setf (aref (a class) i) (+ (aref (a class) i) data))))
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(defmethod dothing progn ((class class_b) data)
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(loop for i from 0 to 9 do (setf (aref (b class) i) (+ (aref (b class) i) (aref (a class) i) data))))
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(defgeneric doother4 (class data)
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);(:method-combination progn :most-specific-last))
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(defmethod doother4 ((class class_a) data)
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(format t "class_a~%")
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(loop for i from 0 to 4 do (setf (aref data i) "a"))
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data)
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(defmethod doother4 :after ((class class_b) data)
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(format t "class_b~%")
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(loop for i from 0 to 2 do (setf (aref data i) "b"))
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data)
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(defmethod (setf a) (new-number (class class_a))
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(setf (aref (a class) 0) new-number))
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;(defmethod (setf a) (new-number index (class class_a))
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; (setf (aref (a class) index) new-number)) |