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From: Robb.Nebbe@di.epfl.ch (Robb Nebbe)
Newsgroups: comp.lang.ada
Subject: Re: Child packages
Date: 21 Oct 1994 08:48:51 GMT
Organization: Ecole Polytechnique Federale de Lausanne
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 <385thq$kh6@watnews1.watson.ibm.com>
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Date: 1994-10-21T08:48:51+00:00
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In article <385thq$kh6@watnews1.watson.ibm.com>, ncohen@watson.ibm.com (Norman H. Cohen) 
|> 
|> While child packages provide many more advantages than disadvantages, I
|> feel we have lost something important from Ada 83--a clearly marked,
|> compiler-recognized distinction between those aspects of a module that do
|> and do not form a part of its "contract".
|> 
|> --
|> Norman H. Cohen    ncohen@watson.ibm.com

I have found it very helpful to think of child packages as extensions of
the parent package and not as clients of the parent package.

If you have a package that needs access to some "private information" then
you should extend the package with a child package that specifies the
interface to this information. Then make your package a client of the
child package.

- Robb Nebbe