On Tue, 2004-03-16 at 11:46, Dan Sugalski wrote: > A class >does< X if X is on the does list of the class or any of the > parents of the class. This class then does the role X.
> A class >isa< X if X in on the isa list of the class or any of the > parents of the class. > Alternately, your class can just declare that it does X and thus > *only* put X on its does list. Then that class or any child class is > noted as doing X, without actually being an X. As long as there are separate does and isa lists, it can work right. Just to be sure, if Class Y inherits from Class X, is X on Y's does list? -- c
