[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Various Decisions

    Date: Tue, 29 Sep 87 12:05:58 PDT
    From: Pavel.pa@Xerox.COM

    Why are folks so opposed to using the error system instead of this
    NEXT-METHOD function?  It seems the obvious thing, leading to more
    readable code with a clearer intent.

Note that condition handlers have dynamic rather than lexical "scope"
(or whatever word you want to use for the portion of program that they
affect).  Thus a HANDLER-CASE around a CALL-NEXT-METHOD might actually
intercept some inner CALL-NEXT-METHOD in some inner, nested method.
There's no way to turn off the handler as soon as the CALL-NEXT-METHOD
has succeeded in passing control to the next method.