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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: fyi, very interesting Ada paper OOP vs. Readability
Date: Wed, 30 May 2012 15:12:05 +0200
Organization: cbb software GmbH
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Date: 2012-05-30T15:12:05+02:00
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On Wed, 30 May 2012 14:45:59 +0200, stefan-lucks@see-the.signature wrote:

> On Wed, 30 May 2012, Dmitry A. Kazakov wrote:
> 
>> What about fixing the language instead of thinking about ugly kludges?
> 
> Something like
> 
>   for String use Ada.Strings.Unbounded.Unbounded_String;
> 
> and then every "constant string" in the source code is read as 
> Ada.Strings.Unbounded.To_Unbounded_String("constant string")?

Rather:

   type Unbounded_String is new String'Interface with private;

String literals are primitive operations of String's interface. E.g.

   function "abc" return String;

They are inherited by Unbounded_String and must be overridden per
compositions with To_Unbounded_String:

   overriding
      function "abc" return Unbounded_String is
         To_Unbounded_String ("abc");

Sorry, for not inventing a syntax for such sort of delegation.

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