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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: How to test object hierarchy
Date: Sun, 21 Dec 2003 04:34:47 +0000 (UTC)
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Date: 2003-12-21T04:34:47+00:00
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Dmitry A. Kazakov <mailbox@dmitry-kazakov.de> wrote:
: 
:> should "with type" be mentioned in this context?
: 
: Interesting, why do you thing it should?

I'm not really familiar with "with type", but I thought (guessed)
that the OP's procedure could be distributed across pairs of two,
each procedure taking one top level class-wide parameter and
a derived type parameter. If I have

package D is

   type Root is tagged private;

   type Derived_1 is new Root with private;

   procedure Op_1(d: Derived_1; other: Derived_2'Class);
                                       -- too early
   procedure Op_1(d: Derived_2; other: Derived_2'Class);
                  --  too early,       too early

   type Derived_2 is new Root with private;

   procedure Op_2(d: Derived_2; other: Derived_1'Class);
   procedure Op_2(d: Derived_1; other: Derived_1'Class);
                  -- too late

   ...

Will "with type" and package reorganisation help?


-- Georg