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- From: bevan@cs.man.ac.uk (Stephen J Bevan)
- Newsgroups: comp.object
- Subject: Re: objects and closures
- Message-ID: <BEVAN.92Nov7131013@hippo.cs.man.ac.uk>
- Date: 7 Nov 92 13:10:13 GMT
- References: <1992Oct27.205320.13271@twg.com> <9210302223.AA11001@cs.columbia.edu>
- <720756315@sheol.UUCP> <BEVAN.92Nov3182229@hippo.cs.man.ac.uk>
- <Bx8zpz.4KE@dcs.ed.ac.uk>
- Sender: news@cs.man.ac.uk
- Organization: Department of Computer Science, University of Manchester
- Lines: 25
- In-reply-to: pdc@dcs.ed.ac.uk's message of 5 Nov 92 14:46:47 GMT
-
- In article <Bx8zpz.4KE@dcs.ed.ac.uk> pdc@dcs.ed.ac.uk (Paul Crowley) writes:
- In article <BEVAN.92Nov3182229@hippo.cs.man.ac.uk> bevan@cs.man.ac.uk (Stephen J Bevan) writes:
- >You could always use a language which has closure(goto) and lets you
- >the _user_ add the syntax necessary to represent object(while) when
- >and if they want it. One example of this would be Scheme using its
- >(hygenic) macro system.
-
- ...so long as everyone uses the same OO extension, of course.
-
- No, not necessarily. If I can write wrappers for FORTRAN code in C++,
- writing a wrapper for an object in one OO extension to use in another
- OO extension in the same language would be a doddle.
-
- I'm not convinced of the virtue of this over everyone using the same OO
- language.
-
- * OO is abstraction mechanism.
- * Users should be free to use or not as they see fit.
- * There is no universal OO system. For example, opinions differ on
- delegation vs. inheritance, single inheritance vs. multiple
- inheritance and static vs. latent typing.
- * Users should not _necessarily_ have to change the base language to
- use OOP systems that cover these different perspectives.
-
- bevan
-