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-- C393B12.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 the specification of a

--      generic package when the parent is an abstract type in a library

--      package.

--

-- TEST DESCRIPTION:

--      Extend an abstract type in the visible part of a generic package.

--      Make all of the procedures which override abstract procedures

--      available as part of the generic interface.  Instantiate the generic.

--

-- TEST FILES:

--      This test depends on the following foundation code:

--

--         F393B00.A  Package Alert_Foundation

--

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--      14 Oct 95   SAIC    Update and repair for ACVC 2.0.1

--      27 Feb 97   PWB.CTA Add pragma Elaborate for C393B12_0.

--!

----------------------------------------------------------------- C393B12_0

with F393B00;

  -- Alert_Foundation

generic

  type Generic_Status_Enum is (<>);

package C393B12_0 is

     -- Alert_Functions

  type Generic_Alert_Type is new F393B00.Alert with record

    Status : Generic_Status_Enum := Generic_Status_Enum'First;

  end record;

                                     -- extension of an abstract type

  procedure Handle (GA : in out Generic_Alert_Type);

                                     -- override of abstract procedure

  function Query_Status (GA : Generic_Alert_Type)

    return Generic_Status_Enum;      -- new primitive operation for

                                     -- Generic_Alert_Type

end C393B12_0;

 -- Alert_Functions

-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

package body C393B12_0 is

          -- Alert_Functions

  procedure Handle (GA : in out Generic_Alert_Type) is

    begin

      GA.Status := Generic_Status_Enum'Last;

    end Handle;

  function Query_Status (GA : Generic_Alert_Type)

    return Generic_Status_Enum is

    begin

      return GA.Status;

    end Query_Status;

end C393B12_0;

----------------------------------------------------------------- C393B12_1

package C393B12_1 is

  type Status is (Low, Medium, High);

end C393B12_1;

------------------------------------------------------- C393B12_1.C393B12_2

with C393B12_0;

pragma Elaborate (C393B12_0);

package C393B12_1.C393B12_2 is new C393B12_0

                        -- Alert_Functions

                 (Generic_Status_Enum => Status);

------------------------------------------------------------------- C393B12

with C393B12_1.C393B12_2;

with Report;

procedure C393B12 is

  use type C393B12_1.Status;

  package Alt_Alert renames C393B12_1.C393B12_2;

  GA : Alt_Alert.Generic_Alert_Type;

begin

  Report.Test ("C393B12",  "Check that an extended type can be derived " &

                           "from an abstract type");

  if Alt_Alert.Query_Status (GA) /= C393B12_1.Low then

    Report.Failed ("Wrong initialization");

  end if;

  Alt_Alert.Handle (GA);

  if Alt_Alert.Query_Status (GA) /= C393B12_1.High then

    Report.Failed ("Wrong results from Handle");

  end if;

  Report.Result;

end C393B12;