From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,4e5770c49b971630
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news4.google.com!feeder.news-service.com!news.netcologne.de!newsfeed-fusi2.netcologne.de!newsfeed.straub-nv.de!noris.net!newsfeed.arcor.de!newsspool1.arcor-online.net!news.arcor.de.POSTED!not-for-mail
Date: Tue, 03 May 2011 17:22:50 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US;
 rv:1.9.2.15) Gecko/20110303 Thunderbird/3.1.9
MIME-Version: 1.0
Newsgroups: comp.lang.ada
Subject: Re: High-Integrity OO and controlled types
References: <d8204576-14ff-41a4-b850-ace9c15872d4@v8g2000yqb.googlegroups.com>
 <679e3217-98dd-43c1-86f6-2038a029c3ea@b19g2000yqg.googlegroups.com>
 <94f3a272-d071-4a74-bfbd-8f2b4c2347cf@m10g2000yqd.googlegroups.com>
 <cba1e286-d160-4f75-aebc-74f82ce78f30@26g2000yqa.googlegroups.com>
 <beefc106-01b0-4dec-ae7b-2ef41b1c7c78@b19g2000yqg.googlegroups.com>
 <f6e72476-0dca-4ab8-bfdf-94a0ddf7a7dc@j26g2000yqa.googlegroups.com>
 <4dbfe6cc$0$7664$9b4e6d93@newsspool1.arcor-online.net>
 <1in9ypl17vu1t$.1shivr91x8zw6.dlg@40tude.net>
In-Reply-To: <1in9ypl17vu1t$.1shivr91x8zw6.dlg@40tude.net>
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Message-ID: <4dc01dca$0$6885$9b4e6d93@newsspool2.arcor-online.net>
Organization: Arcor
NNTP-Posting-Date: 03 May 2011 17:22:50 CEST
NNTP-Posting-Host: 7c52672e.newsspool2.arcor-online.net
X-Trace: 
 DXC=DS4BjcBg_bR@>[RYkFXOIPA9EHlD;3YcR4Fo<]lROoRQ8kF<OcfhCO[]C][NlR?aX_nc\616M64>ZLh>_cHTX3j]Dnm_l46\`@P
X-Complaints-To: usenet-abuse@arcor.de
Xref: g2news2.google.com comp.lang.ada:20113
Date: 2011-05-03T17:22:50+02:00
List-Id: <comp.lang.ada>

On 03.05.11 14:27, Dmitry A. Kazakov wrote:
> On Tue, 03 May 2011 13:28:12 +0200, Georg Bauhaus wrote:
> 
>> On 03.05.11 11:59, Maciej Sobczak wrote:
>>
>>> Another angle: the fact that the lack of controlled types in HI
>>> profiles can be considered as a problem is entirely a result of the
>>> fact that Ada completely screwed this aspect at the beginning.
>>> Controlledness should not be based on tags - it should be a completely
>>> orthogonal property of the type,
>>
>> Actually, in non-flat languages like Ada, scope exit
>> actions should be based on scopes, not (just) types,
>> as types can effectively span multiple scopes.
> 
> But typed languages tend to consider actions as operations defined on
> types, with certain contracts, reusable, clearly bound effects etc.
> 
> Actions as amorphous chunks of code tossed here and there depending on
> scope is a way different ["anisotropic"] approach. In particular it does
> not fit into safe modular software design, because of this "anisotropy".

What will type-object/module code look like if it is equivalent
to its nested analog?  Better?

My guess is that to achieve the necessary linking, one passes
Italian food handles to constructors and/or established registries
that receive "events" like "a scope X has been left".

In general, would the type-object/module approach work
better?  For example, assuming something like the naturally nested
Integrate function.