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From: jsa@alexandria.organon.com (Jon S Anthony)
Subject: Re: Design By Contract
Date: 1997/09/05
Date: 1997-09-05T00:00:00+00:00	[thread overview]
Message-ID: <JSA.97Sep5130913@alexandria.organon.com> (raw)
In-Reply-To: EG0oz8.F6M@syd.csa.com.au



In article <EG0oz8.F6M@syd.csa.com.au> nospam@thanks.com.au (Don Harrison) writes:

> Especially since you haven't shown how you think child packages can
> give some of what selective export has to offer. It's a bit
> difficult to give an example of what they *don't* offer if it's not
> clear what they *do* offer.

See Patrick's example.  The point is, private children provide a level
of "selective export" (exporting their interfaces only to their
parent's body and certain parts of the private subtrees).  IME, this
has been quite sufficient.

Eiffel's selective export is really much more like the granularity you
get (and the attendant problems from) C++ friendship.

/Jon

-- 
Jon Anthony
OMI, Belmont, MA 02178, 617.484.3383 
"Nightmares - Ha!  The way my life's been going lately,
 Who'd notice?"  -- Londo Mollari




  parent reply	other threads:[~1997-09-05  0:00 UTC|newest]

Thread overview: 106+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-08-21  0:00 Critique of Ariane 5 paper (finally!) aek
     [not found] ` <33FC66AD.9A0799D4@calfp.co.uk>
1997-08-22  0:00   ` Robert S. White
1997-08-22  0:00     ` Samuel Mize
1997-08-22  0:00       ` Samuel Mize
1997-08-23  0:00     ` Ken Garlington
     [not found]   ` <33FFA4B1.3543@flash.net>
1997-08-26  0:00     ` Nick Leaton
     [not found]       ` <3403940F.4154@pseserv3.fw.hac.com>
1997-08-27  0:00         ` Design By Contract Ted Velkoff
     [not found]           ` <5u3c6v$gtf$2@miranda.gmrc.gecm.com>
1997-08-28  0:00             ` Patrick Doyle
1997-09-06  0:00               ` Joachim Durchholz
1997-09-06  0:00                 ` Patrick Doyle
     [not found]             ` <34058808.3BF@pseserv3.fw.hac.com>
1997-08-28  0:00               ` Darren New
     [not found]           ` <JSA.97Aug27180328@alexandria.organon.com>
1997-08-28  0:00             ` W. Wesley Groleau x4923
1997-09-03  0:00             ` Don Harrison
1997-09-03  0:00               ` Jon S Anthony
1997-09-04  0:00                 ` Don Harrison
     [not found]         ` <EFM140.Fy9@syd.csa.com.au>
1997-08-28  0:00           ` Robert Dewar
1997-08-29  0:00             ` Don Harrison
1997-08-28  0:00           ` Jon S Anthony
1997-08-29  0:00             ` Don Harrison
1997-08-29  0:00               ` Jon S Anthony
     [not found]                 ` <EFqE8L.4Eq@ecf.toronto.edu>
     [not found]                   ` <JSA.97Aug30145058@alexandria.organon.com>
1997-09-01  0:00                     ` Patrick Doyle
1997-09-02  0:00                 ` Don Harrison
1997-09-02  0:00                   ` Joerg Rodemann
1997-09-02  0:00                     ` Jon S Anthony
1997-09-02  0:00                   ` Jon S Anthony
1997-09-03  0:00                     ` Don Harrison
     [not found]                     ` <JSA.97Sep3201329@alexandria.organon.com>
1997-09-04  0:00                       ` Paul Johnson
1997-09-05  0:00                         ` Jon S Anthony
     [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                               ` Veli-Pekka Nousiainen
1997-09-09  0:00                               ` Veli-Pekka Nousiainen
1997-09-09  0:00                                 ` Jon S Anthony
1997-09-09  0:00                               ` W. Wesley Groleau x4923
1997-09-09  0:00                               ` Matthew Heaney
1997-09-09  0:00                                 ` Brian Rogoff
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
1997-09-10  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
1997-09-15  0:00                                       ` John G. Volan
1997-09-14  0:00                                     ` Robert Dewar
1997-09-14  0:00                                     ` Robert Dewar
1997-09-10  0:00                                 ` Paul Johnson
1997-09-10  0:00                                   ` Matthew Heaney
1997-09-10  0:00                                   ` Darren New
1997-09-08  0:00                         ` Design By Contract Nick Leaton
1997-09-08  0:00                           ` Matthew Heaney
1997-09-09  0:00                           ` Paul Johnson
     [not found]                       ` <EFzLn7.481@ecf.toronto.edu>
1997-09-04  0:00                         ` Jon S Anthony
     [not found]                       ` <EFz0pD.E6n@syd.csa.com.au>
1997-09-05  0:00                         ` subjectivity W. Wesley Groleau x4923
1997-09-05  0:00                           ` subjectivity Matthew Heaney
1997-09-10  0:00                             ` subjectivity Don Harrison
1997-09-12  0:00                               ` subjectivity Jon S Anthony
1997-09-16  0:00                                 ` subjectivity Don Harrison
1997-09-16  0:00                                   ` subjectivity Jon S Anthony
1997-09-10  0:00                           ` subjectivity Don Harrison
1997-09-10  0:00                             ` subjectivity W. Wesley Groleau x4923
1997-09-11  0:00                               ` subjectivity Don Harrison
1997-09-10  0:00                             ` subjectivity W. Wesley Groleau x4923
1997-09-05  0:00                         ` Design By Contract W. Wesley Groleau x4923
     [not found]                         ` <JSA.97Sep4172912@alexandria.organon.com>
     [not found]                           ` <EG0oz8.F6M@syd.csa.com.au>
1997-09-05  0:00                             ` Jon S Anthony [this message]
1997-09-05  0:00                               ` Nick Leaton
1997-09-08  0:00                                 ` Jon S Anthony
1997-09-09  0:00                                   ` Nick Leaton
1997-09-10  0:00                                     ` Paul Johnson
1997-09-06  0:00                               ` Patrick Doyle
     [not found]                             ` <EG0rp7.GtL@syd.csa.com.au>
1997-09-05  0:00                               ` Matthew Heaney
1997-09-09  0:00                           ` Robert A Duff
1997-09-09  0:00                             ` Matthew Heaney
1997-08-29  0:00             ` Patrick Doyle
1997-08-29  0:00               ` Jon S Anthony
     [not found]                 ` <EFqDw0.3x7@ecf.toronto.edu>
     [not found]                   ` <JSA.97Aug30145354@alexandria.organon.com>
1997-09-01  0:00                     ` Patrick Doyle
     [not found]         ` <349224633wnr@eiffel.demon.co.uk>
1997-08-27  0:00           ` Design by Contract Robert Dewar
1997-08-29  0:00           ` Don Harrison
     [not found]       ` <3406BEF7.2FC3@flash.net>
     [not found]         ` <3406E0F7.6FF7ED99@calfp.co.uk>
1997-09-02  0:00           ` Critique of Ariane 5 paper (finally!) Ken Garlington
     [not found] <5u1627$1fak@info4.rus.uni-stuttgart.de>
     [not found] ` <EFM1Lx.GD2@syd.csa.com.au>
1997-08-28  0:00   ` Design by Contract Robert Dewar
  -- strict thread matches above, loose matches on Subject: below --
1997-08-07  0:00 Safety-critical development in Ada and Eiffel Ken Garlington
1997-08-12  0:00 ` Don Harrison
1997-08-12  0:00   ` Jon S Anthony
1997-08-13  0:00     ` Ted Velkoff
1997-08-13  0:00       ` Ken Garlington
1997-08-14  0:00         ` Nick Leaton
1997-08-18  0:00           ` Joachim Durchholz
1997-08-19  0:00             ` Ken Garlington
1997-08-21  0:00               ` Joachim Durchholz
1997-08-23  0:00                 ` Ken Garlington
     [not found]                   ` <JSA.97Aug25181856@alexandria.organon.com>
     [not found]                     ` <34023A1F.41C67EA6@eiffel.com>
1997-08-25  0:00                       ` Design by Contract Bertrand Meyer
1997-08-25  0:00                         ` Steve Stringfellow
1997-08-26  0:00                         ` Don Harrison
1997-08-25  0:00                       ` Bertrand Meyer
     [not found]                         ` <JSA.97Aug26151833@alexandria.organon.com>
1997-08-27  0:00                           ` Patrick Doyle
1997-08-25  0:00                       ` Bertrand Meyer
     [not found]                         ` <3402d123.0@news.uni-ulm.de>
1997-08-26  0:00                           ` Nick Leaton
     [not found]                             ` <3402e51d.0@news.uni-ulm.de>
     [not found]                               ` <3402E8C9.3384D976@calfp.co.uk>
     [not found]                                 ` <dewar.872631036@merv>
1997-08-27  0:00                                   ` Ted Velkoff
1997-08-27  0:00                                   ` Matt Kennel (Remove 'NOSPAM' to reply)
     [not found]                                   ` <34050F3C.5A3A@invest.amp.com.au>
1997-08-28  0:00                                     ` Robert Dewar
1997-08-29  0:00                                       ` Paul Johnson
1997-08-31  0:00                                         ` Matt Kennel (Remove 'NOSPAM' to reply)
1997-09-01  0:00                                           ` John F. Bell III
1997-09-02  0:00                                             ` Ken Garlington
1997-09-05  0:00                                               ` Robert Dewar
     [not found]                                         ` <dewar.872887402@merv>
1997-09-02  0:00                                           ` Ken Garlington
1997-09-03  0:00                                             ` Thomas Beale
     [not found]                                               ` <EFxx8q.2sw@ecf.toronto.edu>
1997-09-04  0:00                                                 ` Thomas Beale
1997-09-05  0:00                                             ` Robert Dewar
1997-09-05  0:00                                               ` Ken Garlington
     [not found]                             ` <340306E1.5FB64D70@XYZZYcalfp.com>
1997-08-28  0:00                               ` Mark Bennison
     [not found]                         ` <bengtk-2708972209500001@sl35.modempool.kth.se>
1997-08-28  0:00                           ` Nick Leaton
1997-08-25  0:00                       ` Bertrand Meyer
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