Re: Subtyping and Subclassing, again

Park SungWoo (gladius@compiler.kaist.ac.kr)
Tue, 15 Apr 1997 04:21:49 +0900 (KST)

> I don't believe, that distinguishing SFTransform
> and MFTransform in the class hierarchy,
> is a good idea.
> I would make SF and MF parts of the syntax
> for type restrictions. So SFTransform and Transform
> are equivalent, while MFTransform means one or
> more nodes, which have to belong to Transform
> or one of its subclasses are allowed. In other
> words every class C induces a type SFC and MFC.

This was exactly the same as my idea. Was there
any delivery problem via Internet? ;)

-> Conglatulation !, probably another consensus !

>
> CLASS X [ eventIn MFTransfrom nodes
> eventIn Transform next
> eventIn SFTransfrom previous ]
>
> Here the declaration of next and previous are
> equivalent.
>

-- 
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 Sungwoo Park, (Castle-Help Naive)
	homepage : http://compiler.kaist.ac.kr/~gladius
 	e-mail : gladius@compiler.kaist.ac.kr
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