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[plt-scheme] abstract methods/classes

From: Neil W. Van Dyke (neil at neilvandyke.org)
Date: Fri Mar 21 23:30:53 EST 2003		 
Is there a way to do abstract methods in with the class.ss object
system?

I suppose one way would be to let class impose an interface constraint
upon *sub*classes that is enforced at instantiation time.

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                                             http://www.neilvandyke.org/
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