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Lazy error signaling?
Date: Mon, 14 May 90 17:59:36 EDT
From: kab@charon.MIT.EDU (Kim A. Barrett)
Regarding precomputing of combined methods and METHOD-COMBINATION-ERROR, this
only works if the place doing the precomputing knows how to detect and
gracefully handle a corresponding call to METHOD-COMBINATION-ERROR. Since we
didn't specify much about the behavior of METHOD-COMBINATION-ERROR, this is
currently impossible in portable code. Of course, it's not clear that
precomputing methods can be done for any useful purpose without a metaobject
I was thinking of the cases where the implementation does effective method
precomputing. For these cases the code does not have to be portable.