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Date: Thu, 10 Jun 2010 12:12:50 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Subject: Re: Ada requires too much typing!
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Date: 2010-06-10T12:12:51+02:00
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On 10.06.10 10:57, Vadim Godunko wrote:
> On Jun 10, 11:20 am, AdaMagica <christoph.gr...@eurocopter.com> wrote:
>> On 10 Jun., 08:34, Vadim Godunko <vgodu...@gmail.com> wrote:
>>
>>> I want to known more about how to use OOP in Ada without access types!
>>
>> type Element is tagged ...
>> subtype Any_Element is Element'Class;
>>
>> procedure Show (E: Element);
>>
> Thank you for example, this is example of dispatching but not use of
> Ada in heavy OOP style of programming. :-)

Will it, in theory, be possible to write a Qt-like library
in Ada such that client programs declare variables like

   W : Some_Window'Class := Some_Lib_Pack.Make (Typ => Some_Id);

That is, programs do not use access Some_Window'Class?