-- C393008.A
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-- C393008.A
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--
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--
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-- Grant of Unlimited Rights
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-- Grant of Unlimited Rights
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--
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--
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
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-- unlimited rights in the software and documentation contained herein.
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-- unlimited rights in the software and documentation contained herein.
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making
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-- this public release, the Government intends to confer upon all
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-- this public release, the Government intends to confer upon all
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-- recipients unlimited rights equal to those held by the Government.
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-- recipients unlimited rights equal to those held by the Government.
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-- These rights include rights to use, duplicate, release or disclose the
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-- These rights include rights to use, duplicate, release or disclose the
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-- released technical data and computer software in whole or in part, in
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-- released technical data and computer software in whole or in part, in
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- any manner and for any purpose whatsoever, and to have or permit others
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-- to do so.
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-- to do so.
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--
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--
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-- DISCLAIMER
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-- DISCLAIMER
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--
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--
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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-- PARTICULAR PURPOSE OF SAID MATERIAL.
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--*
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--*
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--
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--
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-- TEST OBJECTIVE:
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-- TEST OBJECTIVE:
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-- Check that an extended type can be derived from an abstract type.
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-- Check that an extended type can be derived from an abstract type.
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--
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--
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-- TEST DESCRIPTION:
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-- TEST DESCRIPTION:
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-- Declare a tagged record; declare an abstract
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-- Declare a tagged record; declare an abstract
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-- primitive operation and a non-abstract primitive operation of the
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-- primitive operation and a non-abstract primitive operation of the
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-- type. Derive an extended type from it, including a new component.
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-- type. Derive an extended type from it, including a new component.
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-- Use the derived type, the overriding operation and the inherited
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-- Use the derived type, the overriding operation and the inherited
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-- operation to instantiate a generic package. The overriding operation
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-- operation to instantiate a generic package. The overriding operation
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-- calls a new primitive operation and an inherited operation [so the
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-- calls a new primitive operation and an inherited operation [so the
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-- instantiation must get this sorted out correctly].
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-- instantiation must get this sorted out correctly].
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--
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--
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--
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--
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-- CHANGE HISTORY:
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-- CHANGE HISTORY:
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-- 06 Dec 94 SAIC ACVC 2.0
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-- 06 Dec 94 SAIC ACVC 2.0
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--
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--
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--!
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--!
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with Report;
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with Report;
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with TCTouch;
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with TCTouch;
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procedure C393008 is
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procedure C393008 is
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package C393008_0 is
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package C393008_0 is
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type Status_Enum is (No_Status, Handled, Unhandled, Pending);
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type Status_Enum is (No_Status, Handled, Unhandled, Pending);
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type Alert_Type is abstract tagged record
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type Alert_Type is abstract tagged record
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Status : Status_Enum;
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Status : Status_Enum;
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Reply : Boolean;
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Reply : Boolean;
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Urgent : Boolean;
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Urgent : Boolean;
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end record;
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end record;
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subtype Serial_Number is Integer range 0..Integer'last;
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subtype Serial_Number is Integer range 0..Integer'last;
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Serial_Num : Serial_Number := 0;
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Serial_Num : Serial_Number := 0;
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procedure Handle (A : in out Alert_Type) is abstract;
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procedure Handle (A : in out Alert_Type) is abstract;
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-- abstract primitive operation
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-- abstract primitive operation
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-- the procedure Init would be _nice_ have this procedure be non_abstract
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-- the procedure Init would be _nice_ have this procedure be non_abstract
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-- and create a "base" object with a "null" constraint. The language
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-- and create a "base" object with a "null" constraint. The language
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-- will not allow this due to the restriction that an object of an
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-- will not allow this due to the restriction that an object of an
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-- abstract type cannot be created. Hence Init must be abstract,
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-- abstract type cannot be created. Hence Init must be abstract,
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-- requiring any type derived directly from Alert_Type to declare
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-- requiring any type derived directly from Alert_Type to declare
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-- an Init.
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-- an Init.
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--
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--
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-- In light of this, I have changed init to a function to more closely
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-- In light of this, I have changed init to a function to more closely
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-- model the typical usage of OO features...
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-- model the typical usage of OO features...
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function Init return Alert_Type is abstract;
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function Init return Alert_Type is abstract;
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procedure No_Reply (A : in out Alert_Type);
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procedure No_Reply (A : in out Alert_Type);
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end C393008_0;
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end C393008_0;
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--=======================================================================--
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--=======================================================================--
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package body C393008_0 is
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package body C393008_0 is
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procedure No_Reply (A : in out Alert_Type) is
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procedure No_Reply (A : in out Alert_Type) is
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begin -- primitive operation, not abstract
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begin -- primitive operation, not abstract
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TCTouch.Touch('A'); ------------------------------------------------- A
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TCTouch.Touch('A'); ------------------------------------------------- A
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if A.Status = Handled then
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if A.Status = Handled then
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A.Reply := False;
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A.Reply := False;
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end if;
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end if;
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end No_Reply;
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end No_Reply;
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end C393008_0;
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end C393008_0;
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--=======================================================================--
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--=======================================================================--
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generic
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generic
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-- pass in the Alert_Type object, including its
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-- pass in the Alert_Type object, including its
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-- operations
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-- operations
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type Data_Type is new C393008_0.Alert_Type with private;
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type Data_Type is new C393008_0.Alert_Type with private;
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-- note that Alert_Type is abstract, so it may not be
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-- note that Alert_Type is abstract, so it may not be
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-- used as an actual parameter
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-- used as an actual parameter
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with procedure Update (P : in out Data_Type) is <>; -- generic formal
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with procedure Update (P : in out Data_Type) is <>; -- generic formal
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with function Initialize return Data_Type is <>; -- generic formal
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with function Initialize return Data_Type is <>; -- generic formal
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package C393008_1 is
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package C393008_1 is
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-- Utilities
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-- Utilities
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procedure Modify (Item : in out Data_Type);
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procedure Modify (Item : in out Data_Type);
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end C393008_1;
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end C393008_1;
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-- Utilities
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-- Utilities
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--=======================================================================--
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--=======================================================================--
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package body C393008_1 is
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package body C393008_1 is
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-- Utilities
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-- Utilities
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procedure Modify (Item : in out Data_Type) is
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procedure Modify (Item : in out Data_Type) is
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begin
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begin
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TCTouch.Touch('B'); --------------------------------------------- B
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TCTouch.Touch('B'); --------------------------------------------- B
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Item := Initialize;
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Item := Initialize;
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Update (Item);
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Update (Item);
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end Modify;
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end Modify;
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end C393008_1;
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end C393008_1;
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--=======================================================================--
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--=======================================================================--
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package C393008_2 is
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package C393008_2 is
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type Low_Alert_Type is new C393008_0.Alert_Type with record
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type Low_Alert_Type is new C393008_0.Alert_Type with record
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Serial : C393008_0.Serial_Number;
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Serial : C393008_0.Serial_Number;
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end record;
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end record;
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procedure Serialize (LA : in out Low_Alert_Type);
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procedure Serialize (LA : in out Low_Alert_Type);
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-- inherit No_Reply
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-- inherit No_Reply
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procedure Handle (LA : in out Low_Alert_Type);
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procedure Handle (LA : in out Low_Alert_Type);
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function Init return Low_Alert_Type;
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function Init return Low_Alert_Type;
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end C393008_2;
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end C393008_2;
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package body C393008_2 is
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package body C393008_2 is
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procedure Serialize (LA : in out Low_Alert_Type) is
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procedure Serialize (LA : in out Low_Alert_Type) is
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begin -- new primitive operation
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begin -- new primitive operation
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TCTouch.Touch('C'); ------------------------------------------------- C
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TCTouch.Touch('C'); ------------------------------------------------- C
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C393008_0.Serial_Num := C393008_0.Serial_Num + 1;
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C393008_0.Serial_Num := C393008_0.Serial_Num + 1;
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LA.Serial := C393008_0.Serial_Num;
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LA.Serial := C393008_0.Serial_Num;
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end Serialize;
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end Serialize;
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-- inherit No_Reply
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-- inherit No_Reply
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function Init return Low_Alert_Type is
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function Init return Low_Alert_Type is
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TA: Low_Alert_Type;
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TA: Low_Alert_Type;
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begin
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begin
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TCTouch.Touch('D'); ------------------------------------------------- D
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TCTouch.Touch('D'); ------------------------------------------------- D
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Serialize( TA );
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Serialize( TA );
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TA.Status := C393008_0.No_Status;
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TA.Status := C393008_0.No_Status;
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return TA;
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return TA;
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end Init;
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end Init;
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procedure Handle (LA : in out Low_Alert_Type) is
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procedure Handle (LA : in out Low_Alert_Type) is
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begin -- overrides abstract inherited Handle
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begin -- overrides abstract inherited Handle
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TCTouch.Touch('E'); ------------------------------------------------- E
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TCTouch.Touch('E'); ------------------------------------------------- E
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Serialize (LA);
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Serialize (LA);
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LA.Reply := False;
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LA.Reply := False;
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LA.Status := C393008_0.Handled;
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LA.Status := C393008_0.Handled;
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No_Reply (LA);
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No_Reply (LA);
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end Handle;
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end Handle;
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end C393008_2;
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end C393008_2;
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use C393008_2;
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use C393008_2;
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package Alert_Utilities is new
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package Alert_Utilities is new
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C393008_1 (Data_Type => Low_Alert_Type,
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C393008_1 (Data_Type => Low_Alert_Type,
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Update => Handle, -- Low_Alert's Handle
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Update => Handle, -- Low_Alert's Handle
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Initialize => Init); -- inherited from Alert
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Initialize => Init); -- inherited from Alert
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Item : Low_Alert_Type;
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Item : Low_Alert_Type;
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use type C393008_0.Status_Enum;
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use type C393008_0.Status_Enum;
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begin
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begin
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Report.Test ("C393008", "Check that an extended type can be derived "&
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Report.Test ("C393008", "Check that an extended type can be derived "&
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"from an abstract type");
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"from an abstract type");
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Item := Init;
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Item := Init;
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if (Item.Status /= C393008_0.No_Status) or (Item.Serial /=1) then
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if (Item.Status /= C393008_0.No_Status) or (Item.Serial /=1) then
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Report.Failed ("Wrong initialization");
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Report.Failed ("Wrong initialization");
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end if;
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end if;
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TCTouch.Validate("DC", "Initialization Call");
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TCTouch.Validate("DC", "Initialization Call");
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Alert_Utilities.Modify (Item);
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Alert_Utilities.Modify (Item);
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if (Item.Status /= C393008_0.Handled) or (Item.Serial /= 3) then
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if (Item.Status /= C393008_0.Handled) or (Item.Serial /= 3) then
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Report.Failed ("Wrong results from Modify");
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Report.Failed ("Wrong results from Modify");
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end if;
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end if;
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TCTouch.Validate("BDCECA", "Generic Instance Call");
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TCTouch.Validate("BDCECA", "Generic Instance Call");
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Report.Result;
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Report.Result;
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end C393008;
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end C393008;
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