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-- C3A0005.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.
--*
--
-- OBJECTIVE:
-- Check that access to subprogram may be stored within record
-- objects, and that the access to subprogram can subsequently
-- be called.
--
-- TEST DESCRIPTION:
-- Declare an access to procedure type in a package specification.
-- Declare two different procedures that can be referred to by the
-- access to procedure type. Declare a record with the access to
-- procedure type as a component. Use the access to procedure type to
-- initialize the component of a record.
--
-- In the main program, declare an operation. An access value
-- designating this operation is passed as a parameter to be
-- stored in the record.
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
package C3A0005_0 is
Default_Call : Boolean := False;
type Button;
-- Type accesses to procedures Push and Default_Response
type Button_Response_Ptr is access procedure
(B : access Button);
procedure Push (B : access Button);
procedure Set_Response (B : access Button;
R : in Button_Response_Ptr);
procedure Default_Response (B : access Button);
Emergency_Call : Boolean := False;
procedure Emergency (B : access C3A0005_0.Button);
type Button is
record
Response : Button_Response_Ptr
:= Default_Response'Access;
end record;
end C3A0005_0;
-----------------------------------------------------------------------------
with TCTouch;
package body C3A0005_0 is
procedure Push (B : access Button) is
begin
TCTouch.Touch( 'P' ); --------------------------------------------- P
-- Invoking subprogram designated by access value
B.Response (B);
end Push;
procedure Set_Response (B : access Button;
R : in Button_Response_Ptr) is
begin
TCTouch.Touch( 'S' ); --------------------------------------------- S
-- Set procedure value in record
B.Response := R;
end Set_Response;
procedure Default_Response (B : access Button) is
begin
TCTouch.Touch( 'D' ); --------------------------------------------- D
Default_Call := True;
end Default_Response;
procedure Emergency (B : access C3A0005_0.Button) is
begin
TCTouch.Touch( 'E' ); --------------------------------------------- E
Emergency_Call := True;
end Emergency;
end C3A0005_0;
-----------------------------------------------------------------------------
with TCTouch;
with Report;
with C3A0005_0;
procedure C3A0005 is
Big_Red_Button : aliased C3A0005_0.Button;
begin
Report.Test ("C3A0005", "Check that access to subprogram may be "
& "stored within data structures, and that the "
& "access to subprogram can subsequently be called");
C3A0005_0.Push (Big_Red_Button'Access);
TCTouch.Validate("PD", "Using default value");
TCTouch.Assert( C3A0005_0.Default_Call, "Default Call" );
-- set Emergency value in Button.Response
C3A0005_0.Set_Response(Big_Red_Button'Access, C3A0005_0.Emergency'Access);
C3A0005_0.Push (Big_Red_Button'Access);
TCTouch.Validate("SPE", "After set to Emergency value");
TCTouch.Assert( C3A0005_0.Emergency_Call, "Emergency Call");
Report.Result;
end C3A0005;
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