From: Andy <andy@nospam.com.tj>
Subject: Re: tagged types extensions - language design question
Date: 2000/01/29
Date: 2000-01-29T09:01:47+00:00 [thread overview]
Message-ID: <3892BABB.290D@nospam.com.tj> (raw)
In-Reply-To: s93olhgaq0s31@corp.supernews.com
Vladimir Olensky wrote:
> Actually the problem is that naming scheme becomes more
> complicated as I need to invent names for such intermediate
> packages and everything should be clean and easily understandable.
>
Although it is good practice to have each child class type in its
own package, if the intermediate type is just to allow a double
extension (one public, one private), why not just do so in the one
package, something like:
-- Root class
--
package P1 is
type Root is abstract tagged null record;
procedure Method (X : in Root) is abstract;
end P1;
-- Child class
--
package P1.P2 is
-- public extension
-- this is abstract so we don't have to override any
-- abstract operations defined by the paraent class.
--
type Intermediates is abstract new P1.Root with record
F : Float; -- etc.
end record;
type Objects is new Intermediates with private;
procedure Method (X : in Objects);
private
type Objects is new Intermediates with record
I : Integer; -- etc.
end record;
end P1.P2;
Cheers
Andy
next prev parent reply other threads:[~2000-01-29 0:00 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-01-27 0:00 tagged types extensions - language design question Vladimir Olensky
2000-01-27 0:00 ` Laurent Guerby
2000-01-28 0:00 ` Vladimir Olensky
2000-01-28 0:00 ` Andy
2000-01-28 0:00 ` Vladimir Olensky
2000-01-29 0:00 ` Andy [this message]
2000-01-31 0:00 ` Vladimir Olensky
2000-01-27 0:00 ` Matthew Heaney
2000-01-27 0:00 ` Charles Hixson
2000-01-28 0:00 ` Vladimir Olensky
2000-01-28 0:00 ` Matthew Heaney
2000-01-28 0:00 ` Charles Hixson
2000-01-28 0:00 ` Matthew Heaney
2000-02-01 0:00 ` Charles Hixson
2000-02-01 0:00 ` Matthew Heaney
2000-01-29 0:00 ` Vladimir Olensky
2000-01-29 0:00 ` Matthew Heaney
2000-01-29 0:00 ` Matthew Heaney
2000-01-31 0:00 ` Vladimir Olensky
2000-01-31 0:00 ` Matthew Heaney
2000-01-31 0:00 ` Vladimir Olensky
2000-01-27 0:00 ` Fraser
2000-01-28 0:00 ` Tucker Taft
2000-01-31 0:00 ` Vladimir Olensky
2000-02-01 0:00 ` Charles Hixson
2000-02-01 0:00 ` Matthew Heaney
2000-02-01 0:00 ` Brian Rogoff
2000-02-03 0:00 ` scripting/extension language for Ada (was : Re: tagged types extensions) root
2000-02-03 0:00 ` Brian Rogoff
2000-02-04 0:00 ` Ray Blaak
2000-02-04 0:00 ` Robert A Duff
2000-02-05 0:00 ` Ehud Lamm
2000-02-05 0:00 ` blaak
2000-02-05 0:00 ` Brian Rogoff
2000-02-09 0:00 ` Robert A Duff
2000-02-09 0:00 ` Ted Dennison
2000-02-10 0:00 ` Samuel T. Harris
2000-02-10 0:00 ` Pascal Martin
2000-02-10 0:00 ` Ray Blaak
2000-02-11 0:00 ` scripting/extension language for Ada (we have an opportunity here) Tarjei T. Jensen
2000-02-11 0:00 ` Robert I. Eachus
2000-02-12 0:00 ` Tarjei Tj�stheim Jensen
2000-02-12 0:00 ` Samuel T. Harris
2000-02-14 0:00 ` Robert A Duff
2000-02-15 0:00 ` Samuel T. Harris
2000-02-16 0:00 ` Robert A Duff
2000-02-16 0:00 ` Samuel T. Harris
2000-02-16 0:00 ` Robert A Duff
2000-02-17 0:00 ` Samuel T. Harris
2000-02-12 0:00 ` root
2000-02-12 0:00 ` Pascal Martin
2000-02-13 0:00 ` Robert I. Eachus
2000-02-16 0:00 ` scripting/extension ... [off topic] Nick Roberts
2000-02-16 0:00 ` Ray Blaak
2000-02-12 0:00 ` scripting/extension language for Ada (we have an opportunity here) blaak
2000-02-12 0:00 ` Samuel T. Harris
2000-02-11 0:00 ` scripting/extension language for Ada (was : Re: tagged types extensions) David Starner
2000-02-12 0:00 ` blaak
2000-02-15 0:00 ` Brian Rogoff
2000-02-12 0:00 ` Pascal Martin
2000-02-14 0:00 ` Robert A Duff
2000-02-04 0:00 ` Stanley R. Allen
2000-02-04 0:00 ` Samuel T. Harris
2000-02-05 0:00 ` Lionel Draghi
2000-02-05 0:00 ` Samuel T. Harris
2000-02-06 0:00 ` Bryce Bardin
2000-02-08 0:00 ` Samuel T. Harris
2000-02-06 0:00 ` Lionel Draghi
2000-02-05 0:00 ` Lionel Draghi
2000-02-05 0:00 ` Ray Blaak
2000-02-05 0:00 ` scripting/extension language for Ada (was : Re: tagged typesextensions) Lionel Draghi
2000-02-05 0:00 ` scripting/extension language for Ada (was : Re: tagged types extensions) Ehud Lamm
2000-02-06 0:00 ` Lionel Draghi
2000-02-06 0:00 ` scripting/extension language for Ada Terry Westley
2000-02-06 0:00 ` scripting/extension language for Ada (was : Re: tagged types extensions) Ehud Lamm
2000-02-09 0:00 ` Robert A Duff
2000-01-31 0:00 ` tagged types extensions - language design question Mark Lundquist
2000-02-01 0:00 ` Ehud Lamm
2000-02-01 0:00 ` Vladimir Olensky
2000-02-01 0:00 ` Simon Wright
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