Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!uwm.edu!gem.mps.ohio-state.edu!apple!apple.com!chewy
From: chewy@apple.com (Paul Snively)
Newsgroups: comp.object
Subject: Re: Understanding the Object-Oriented Life-Cycle
Message-ID: <5151@internal.Apple.COM>
Date: 11 Nov 89 22:37:15 GMT
Sender: usenet@Apple.COM
Organization: Apple Computer, Inc.
Lines: 33
References:<5026@internal.Apple.COM> <315@shrike.AUSTIN.LOCKHEED.COM>

In article <315@shrike.AUSTIN.LOCKHEED.COM> aihaug@AUSTIN.LOCKHEED.COM 
(Daniel A Haug) writes:
> Although you, Paul, have barked at people referring to Lisp as
> typeless (understandably), I still think of this as being an example
> of a typeless function.  The functions QUEUE and DEQUE know nothing
> about the types of objects on which they are operating.  This is VERY
> typical of the style of design in our applications.  The ability to
> reuse major segments of code because of their `typeless' characteristics
> saved us man-years of effort.

Understood and agreed; my "barked" point was that in Lisp, it's actually 
data that has type, not variables, which as far as I'm concerned is as it 
should be.  Sorry if I sounded like I was being too curmudgeonly! :-)

In article <315@shrike.AUSTIN.LOCKHEED.COM> aihaug@AUSTIN.LOCKHEED.COM 
(Daniel A Haug) writes:
> On a naive note, does C++ or any other C-based OO extensions support
> different types of method combination?  In our applications, we only
> used this capability in CLOS a few times.  However, it was immensely
> useful when we DID use it.

For us Macophiles, there's OIC (Objects In C), by John Wainwright.  He's 
written a set of extensions to THINK C that are based on-guess 
what?--CLOS.  He even tosses in a 15K Lisp interpreter so that you can a) 
play with his stuff interactively, b) add scripting to your applications.  
I like it a lot.

__________________________________________________________________________
Just because I work for Apple Computer, Inc. doesn't mean that they 
believe what I believe or vice-versa.
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C++ -- The language in which only friends can access your private members.
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