c393b14.a

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-- C393B14.A
--
--                             Grant of Unlimited Rights
--
--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 
--     unlimited rights in the software and documentation contained herein.
--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making 
--     this public release, the Government intends to confer upon all 
--     recipients unlimited rights  equal to those held by the Government.  
--     These rights include rights to use, duplicate, release or disclose the 
--     released technical data and computer software in whole or in part, in 
--     any manner and for any purpose whatsoever, and to have or permit others 
--     to do so.
--
--                                    DISCLAIMER
--
--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 
--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 
--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
--     PARTICULAR PURPOSE OF SAID MATERIAL.
--*
--
-- TEST OBJECTIVE:
--      Check that an extended type can be derived in a private child package
--      from an abstract type defined in a library package.
--
-- TEST DESCRIPTION:
--      Add a private child package to Alert_Foundation.  Using Private_Alert
--      as parent type, declare an extended type adding a new record component.
--      Override procedure Handle.  Declare an object of the new type in the
--      child specification. Use type definitions from the private part of the
--      parent in the body of the child.
--
-- TEST FILES: 
--      This test depends on the following foundation code:
--
--         F393B00.A  Package Alert_Foundation
--
--
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--
--!

private package F393B00.C393B14_0 is
             -- Alert_Foundation.Private_Child

  type Implementation_Specific_Alert_Type is new Private_Alert with record
    New_Private_Field : Implementation_Detail 
                        := Implementation_Detail'Last;
  end record;

  procedure Handle (PA : in out Implementation_Specific_Alert_Type);
                             -- overrides abstract Handle, as required
  PA : Implementation_Specific_Alert_Type;

end F393B00.C393B14_0;
 -- Alert_Foundation.Private_Child

--=======================================================================--

package body F393B00.C393B14_0 is
                  -- Alert_Foundation.Private_Child

  procedure Handle (PA : in out Implementation_Specific_Alert_Type) is
    begin
      PA.Private_Field := 1;
      PA.New_Private_Field := PA.Private_Field + 1;
    end;

end F393B00.C393B14_0;
 -- Alert_Foundation.Private_Child

--=======================================================================--

package F393B00.C393B14_1 is
     -- Alert_Foundation.Public_Child

  type Timing is (Before, After);
  procedure Init;
  procedure Modify;
  function Check_Before return Boolean;
  function Check_After  return Boolean;

end F393B00.C393B14_1;
 -- Alert_Foundation.Public_Child

--=======================================================================--

with F393B00.C393B14_0;               -- private sibling is visible in the
  -- Alert_Foundation.Private_Child   -- body of a public sibling
package body F393B00.C393B14_1 is
     -- Alert_Foundation.Public_Child
  package Priv renames F393B00.C393B14_0;

  procedure Init is
    begin
      Priv.PA.Private_Field     := 5;
      Priv.PA.New_Private_Field := 10;
    end Init;

  procedure Modify is
    begin 
      Priv.Handle (Priv.PA);
    end Modify;

  function Check_Before return Boolean is
    begin
      return ((Priv.PA.Private_Field = 5) 
               and (Priv.PA.New_Private_Field =10));
    end Check_Before;

  function Check_After return Boolean is
    begin
      return ((Priv.PA.Private_Field = 1)
               and (Priv.PA.New_Private_Field = 2));
    end Check_After;

end F393B00.C393B14_1;
 -- Alert_Foundation.Public_Child

--=======================================================================--

with Report;
with F393B00.C393B14_1;
procedure C393B14 is
 -- Alert_Foundation.Public_Child;

begin
  Report.Test ("C393B14", "Check that an extended type can be derived " &
                          "from an abstract type");

  F393B00.C393B14_1.Init;
  if not F393B00.C393B14_1.Check_Before then 
    Report.Failed ("Wrong initialization");
  end if;

  F393B00.C393B14_1.Modify;
  if not F393B00.C393B14_1.Check_After then
    Report.Failed ("Wrong results from Handle");
  end if;

  Report.Result;
end C393B14;