From: mw@ipx2.rz.uni-mannheim.de (Marc Wachowitz)
Subject: Re: Building blocks (Was: Design By Contract)
Date: 1997/09/09
Date: 1997-09-09T00:00:00+00:00 [thread overview]
Message-ID: <5v34m5$pl9$1@trumpet.uni-mannheim.de> (raw)
paul.johnson@gecm.com (Paul Johnson) wrote:
> In fact the Eiffel exception mechanism is superior to the Ada one
> because it is built on a theoretical model of software engineering.
It is only "superior" if you think that Bertrand Meyer's proposed theory
about exceptions is the only valid one. I don't think it is - and just to
the contrary, I consider something like Eiffel's class EXCEPTION an ugly
hack to differentiate between kinds of exceptions.
In fact, I think Common Lisp, and later C++ and Java, got it right with
using subtyping as a means to differentiate between exception objects and
to associate information with exceptions; likewise, as in Modula-3 and
Java (similarly C++, as far as I know), I'd like to have a classification
of the possible exceptions raised by a routine in its declaration. Lacking
that, Ada's solution is still far superiour to Eiffel's approach, in my
view.
-- Marc Wachowitz <mw@ipx2.rz.uni-mannheim.de>
next reply other threads:[~1997-09-09 0:00 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-09 0:00 Marc Wachowitz [this message]
1997-09-15 0:00 ` Building blocks (Was: Design By Contract) Joachim Durchholz
1997-09-17 0:00 ` Paul Johnson
1997-09-18 0:00 ` Stephen Leake
1997-09-18 0:00 ` W. Wesley Groleau x4923
1997-09-21 0:00 ` Matthew Heaney
1997-09-18 0:00 ` Mark L. Fussell
1997-09-19 0:00 ` Robert A Duff
1997-09-20 0:00 ` Joachim Durchholz
1997-09-22 0:00 ` Matthew Heaney
1997-09-23 0:00 ` Veli-Pekka Nousiainen
1997-10-03 0:00 ` Robert I. Eachus
1997-10-04 0:00 ` Paul Johnson
1997-10-14 0:00 ` Robert I. Eachus
1997-09-23 0:00 ` Joachim Durchholz
1997-09-23 0:00 ` Jon S Anthony
1997-09-24 0:00 ` Richard A. O'Keefe
1997-09-24 0:00 ` Alan E & Carmel J Brain
1997-09-25 0:00 ` Anonymous
1997-09-30 0:00 ` Alan E & Carmel J Brain
1997-09-30 0:00 ` Matthew Heaney
1997-09-30 0:00 ` Neil Wilson
1997-09-30 0:00 ` Stephen Leake
1997-09-30 0:00 ` W. Wesley Groleau x4923
1997-09-30 0:00 ` Matthew Heaney
1997-10-01 0:00 ` Alan E & Carmel J Brain
1997-10-01 0:00 ` Anonymous
1997-10-01 0:00 ` Joachim Durchholz
1997-10-01 0:00 ` Paul M Gover
1997-10-04 0:00 ` Paul Johnson
1997-10-04 0:00 ` Matthew Heaney
1997-10-15 0:00 ` Paul Johnson
1997-10-15 0:00 ` Matthew Heaney
1997-10-16 0:00 ` Joachim Durchholz
1997-10-17 0:00 ` Robert I. Eachus
1997-10-16 0:00 ` Joachim Durchholz
1997-10-22 0:00 ` Reimer Behrends
1997-10-02 0:00 ` Robert A Duff
1997-10-02 0:00 ` Tucker Taft
1997-10-02 0:00 ` Matthew Heaney
1997-10-03 0:00 ` Stephen Leake
1997-10-04 0:00 ` Matthew Heaney
1997-10-07 0:00 ` Robert A Duff
[not found] ` <11861963wnr@eiffel.demon.co.uk>
1997-09-19 0:00 ` Mark L. Fussell
1997-09-19 0:00 ` Jon S Anthony
1997-09-23 0:00 ` Mark L. Fussell
1997-09-18 0:00 ` Jon S Anthony
1997-09-18 0:00 ` Robert Dewar
-- strict thread matches above, loose matches on Subject: below --
1997-09-11 0:00 Robert Dewar
1997-09-09 0:00 Marc Wachowitz
1997-09-02 0:00 Design By Contract Jon S Anthony
[not found] ` <JSA.97Sep3201329@alexandria.organon.com>
1997-09-04 0:00 ` Paul Johnson
[not found] ` <5un58u$9ih$1@gonzo.sun3.iaf.nl>
1997-09-06 0:00 ` Building blocks (Was: Design By Contract) Joachim Durchholz
1997-09-08 0:00 ` Paul Johnson
1997-09-08 0:00 ` Brian Rogoff
1997-09-09 0:00 ` Matthew Heaney
1997-09-09 0:00 ` W. Wesley Groleau x4923
1997-09-10 0:00 ` Robert A Duff
1997-09-12 0:00 ` Jon S Anthony
1997-09-09 0:00 ` Brian Rogoff
1997-09-10 0:00 ` Paul Johnson
1997-09-10 0:00 ` Darren New
1997-09-10 0:00 ` Matthew Heaney
1997-09-10 0:00 ` Robert Dewar
1997-09-12 0:00 ` Jon S Anthony
1997-09-12 0:00 ` Robert Dewar
1997-09-16 0:00 ` Brian Rogoff
1997-09-12 0:00 ` Paul Johnson
1997-09-14 0:00 ` Robert Dewar
1997-09-14 0:00 ` Robert Dewar
1997-09-14 0:00 ` Robert Dewar
1997-09-15 0:00 ` John G. Volan
1997-09-09 0:00 ` W. Wesley Groleau x4923
1997-09-09 0:00 ` Veli-Pekka Nousiainen
1997-09-09 0:00 ` Jon S Anthony
1997-09-09 0:00 ` Veli-Pekka Nousiainen
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