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From: johnson@uiucdcsp.cs.uiuc.edu
Newsgroups: comp.lang.smalltalk
Subject: Re: MVC diffs between APDA Mac Smalltal
Message-ID: <80500029@uiucdcsp>
Date: 25 Feb 88 15:26:00 GMT
References: <25228@linus.UUCP>
Lines: 8
Nf-ID: #R:linus.UUCP:25228:uiucdcsp:80500029:000:461
Nf-From: uiucdcsp.cs.uiuc.edu!johnson    Feb 25 09:26:00 1988


Apple Smalltalk is derived from an early version of Smalltalk that
did not have pluggable views.  Thus, Apple did not delete any classes,
they just didn't add them.  Since Apple plans to replace the whole
MVC system with something else, the problem of incompatibility does
not worry them.  If you avoid pluggable views, everything else seems
reasonably compatible.  Also, it is possible to port pluggable views,
though this probably violates Xerox's copywrite.