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From: fedya_fedyakoff@inbox.ru
Newsgroups: comp.lang.ada
Subject: Re: Limited returns
Date: Mon, 23 Jun 2008 08:04:33 -0700 (PDT)
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Hehe, and let's consider this:

with Ada.Finalization;
   procedure Test_Limited_Stuff is

      type E is ( Make_S, Make_S1 );

      type I is interface;

      type T is new Ada.Finalization.Controlled with record
         A : Integer;
      end record;

      type S is new T and I with record
         --Self : not null access S'Class := S'Unchecked_Access;
         B: Integer;
      end record;

      type S1 is new T and I with record
         --Self : not null access S1'Class := S1'Unchecked_Access;
         N: String(1..256);
      end record;


      function Factory( w: E ) return I'Class is
      begin
           if w = Make_S then
              return S'(Ada.Finalization.Controlled  with A => 0, B =>
1);
           else
              return S1'(Ada.Finalization.Controlled with A => 0, N =>
(others => 10) );
           end if;
      end Factory;

   Value : I'Class := Factory(Make_S);
   begin
      Value := Factory(Make_S1);
   end Test_Limited_Stuff;


Crashed pretty badly with CONSTRAINT_ERROR, whining about tag check
error. Seems its completely buggy and unusable.