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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Why no named case statements?
Newsgroups: comp.lang.ada
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Date: Sat, 5 Sep 2009 10:18:04 +0200
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Date: 2009-09-05T10:18:03+02:00
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On Fri, 4 Sep 2009 16:06:12 -0700 (PDT), Britt Snodgrass wrote:

> Ada allows optional names for loops and declare blocks but not for
> case or if statetements. Why not, since these are also multi-line
> statements that terminate with an 'end" keyword? I sometimes use loop
> names to clearly indicate the purpose of the loop and have wished I
> could do the same for case statements, e.g.,
> 
> Decide_This:
> case Some_Variable is
> ...
> end case Decide_This;
> 
> or similarly for long if statements:
> 
> Decide_That:
> if Whatever then
> ...
> end if Decide_That:
> 
> Such names could also be used in the outline view of an IDE like
> Eclipse to support quick location of the named entity.
> 
> I suppose there was some rationale so I'm curious what it was.

Ada has labels:

<<Decide_This>>
   case Some_Variable is
       ...
   end case;

<<Decide_That>>
   if Whatever then
      ...
   end if:

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de