Class Precedence Lists

• Complications when there is more than one direct super class

• Rule2: Each class definition sets the precedence order of its direct super classes

• Rule3: Classes appear only once in CPL

(defclass rectangle (selectable-part saveable-part

basic-part)

(x y width height))

• Selectable-part has precedence over saveable-part

• Saveable-part has precedence over basic-part

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