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Date: Thu, 13 Aug 2009 11:34:20 +0300
From: Niklas Holsti <niklas.holsti@tidorum.invalid>
Organization: Tidorum Ltd
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Newsgroups: comp.lang.ada
Subject: Re: Access types as parameters
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Date: 2009-08-13T11:34:20+03:00
List-Id: <comp.lang.ada>

Randy Brukardt wrote:

> You almost never want redispatching

That's interesting as my experience is the opposite: Most of the calls 
between primitive methods in my code use redispatching.

My tagged types tend to have a hierarchy of primitive operations, for 
example an Overall_Method that implements some functionality by a 
sequence of calls to a Detail_Method. Some derived types override 
Detail_Method, so the call from Overall_Method to Detail_Method must 
redispatch. Some other (or the same) derived types override 
Overall_Method, so it cannot be class-wide.

Perhaps the frequency of redispatching depends on the application 
domain, or on personal programming style. The frequency of redispatching 
might me an interesting OO "metric".

-- 
Niklas Holsti
Tidorum Ltd
niklas holsti tidorum fi
       .      @       .