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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;