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,FREEMAIL_FROM
	autolearn=unavailable autolearn_force=no version=3.4.4
X-Received: by 10.236.86.67 with SMTP id v43mr23975017yhe.41.1398270689694;
        Wed, 23 Apr 2014 09:31:29 -0700 (PDT)
X-Received: by 10.140.36.6 with SMTP id o6mr45124qgo.26.1398270689677; Wed, 23
 Apr 2014 09:31:29 -0700 (PDT)
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!news.eternal-september.org!news.eternal-september.org!news.eternal-september.org!feeder.eternal-september.org!news.glorb.com!cm18no5679795qab.0!news-out.google.com!du2ni14151qab.0!nntp.google.com!m5no4682494qaj.1!postnews.google.com!glegroupsg2000goo.googlegroups.com!not-for-mail
Newsgroups: comp.lang.ada
Date: Wed, 23 Apr 2014 09:31:29 -0700 (PDT)
In-Reply-To: <lj8n3j$pki$1@dont-email.me>
Complaints-To: groups-abuse@google.com
Injection-Info: glegroupsg2000goo.googlegroups.com; posting-host=83.145.50.10;
 posting-account=3_reEwoAAAC163IAIrx427KYmwahFuh9
NNTP-Posting-Host: 83.145.50.10
References: <7f1c01c5-3563-4b94-9831-152dbbf2ecdc@googlegroups.com>
 <b00ca00f-e714-457e-b720-805fb5d455e5@googlegroups.com>
 <lj8grf$che$1@dont-email.me>
 <9f156351-e3d0-4d86-b816-1d5e09ee69da@googlegroups.com>
 <lj8n3j$pki$1@dont-email.me>
User-Agent: G2/1.0
MIME-Version: 1.0
Message-ID: <4e3a0e68-1514-4255-9c76-ef8758991ded@googlegroups.com>
Subject: Re: Your wish list for Ada 202X
From: =?ISO-8859-1?Q?bj=F6rn_lundin?= <b.f.lundin@gmail.com>
Injection-Date: Wed, 23 Apr 2014 16:31:29 +0000
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Xref: news.eternal-september.org comp.lang.ada:19532
Date: 2014-04-23T09:31:29-07:00
List-Id: <comp.lang.ada>

Den onsdagen den 23:e april 2014 kl. 17:43:48 UTC+2 skrev J-P. Rosen:
> Le 23/04/2014 16:32, bj=F6rn lundin a =E9crit :
>=20
> >> And what is the benefit over writing:
> >> >    Put_Line (F_T2_Image (V2));
> > not very much.
> > But the usual case is that you have to write
> > Pkg_with_Long_Name.Child_pkg_With_Even_Longer_Name.F_T2_Image(V2)
> > instead of V2'img
>=20
> Ah! Another case of "I don't want to use the use clause, give me
> something else that avoids writing these damn long names".

No. using the 'use' is certainly something one can have different opinions =
on.
But I like to avoid these kind of errors

               SET_ERROR_MODE(NO_ERROR, CRANE_TYPES.ASSIGNMENT_TIMEOUT, FAL=
SE);
                                     |
        >>> error: "NO_ERROR" is not visible
        >>> error: multiple use clauses cause hiding
        >>> error: hidden declaration at crane_types.ads:113
        >>> error: hidden declaration at siemens_interface.ads:374
        >>> error: hidden declaration at core_types.ads:71


One of the best thing with Ada05 was the approval of object.verb notation.
Even if i get to use it seldom at work, I do in hobby projects,
just for this reason. The variable/object knows where it belongs,
no need to use 'use' everywhere.

This is the basic idea for my 'img proposal.=20
The variable knows its type. No need to
have long package names or risk hidden declarations.

By the way, the above hidden situation was because of
adding a constant 'NO_ERROR' in siemens_interface.ads

the other two was a constant and a coded value.
no hiding before that.
/Bj=F6rn