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-- C392C05.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 for a call to a dispatching subprogram the subprogram
-- body which is executed is determined by the controlling tag for
-- the case where the call has statically tagged controlling operands
-- of the type T. Check this for various operands of tagged types:
-- objects (declared or allocated), formal parameters, view conversions,
-- function calls (both primitive and non-primitive).
--
-- TEST DESCRIPTION:
-- This test uses foundation F392C00 to test the usages of statically
-- tagged objects and values. The calls to Validate indicate the
-- expected sequence of procedure calls since the previous call to
-- Validate. Static tags can be determined at compile time, and
-- hence this is a test of correct overload resolution for tagged types.
-- A clever compiler which unrolls loops and does path analysis on
-- access values will be able to perform the same kind of determination
-- for all of the code in this test.
--
-- TEST FILES:
-- The following files comprise this test:
--
-- F392C00.A (foundation code)
-- C392C05.A
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
-- 19 Dec 94 SAIC Removed RM references from objective text.
-- 24 Oct 95 SAIC Updated for ACVC 2.0.1
-- 13 Feb 97 PWB.CTA Corrected assumption that "or" operands are
-- evaluated in textual order.
--!
with Report;
with TCTouch;
with F392C00_1;
procedure C392C05 is -- Hardware_Store
package Switch renames F392C00_1;
subtype Switch_Class is Switch.Toggle'Class;
type Reference is access all Switch_Class;
A_Switch : aliased Switch.Toggle;
A_Dimmer : aliased Switch.Dimmer;
An_Autodim : aliased Switch.Auto_Dimmer;
type Light_Bank is array(Positive range <>) of Reference;
Lamps : Light_Bank(1..3);
begin -- Main test procedure.
Report.Test ("C392C05", "Check that a dispatching subprogram call is "
& "determined by the controlling tag for statically "
& "tagged controlling operands" );
-- Check use of static tagged declared objects,
-- and static tagged formal parameters
-- Must call correct version of flip based on type of controlling op.
-- Turn on the lights!
Switch.Flip( A_Switch );
TCTouch.Validate( "A", "Declared Toggle" );
Switch.Flip( A_Dimmer );
TCTouch.Validate( "GBA", "Declared Dimmer" );
Switch.Flip( An_Autodim );
TCTouch.Validate( "KGBA", "Declared Auto_Dimmer" );
Lamps(1) := new Switch.Toggle;
Lamps(2) := new Switch.Dimmer;
Lamps(3) := new Switch.Auto_Dimmer;
-- Check use of static tagged allocated objects,
-- and static tagged formal parameters in a loop which may dynamically
-- dispatch. If an optimizer unrolls the loop, it may then be statically
-- determined, and no dispatching will occur. Either interpretation is
-- correct.
for Knob in Lamps'Range loop
Switch.Flip( Lamps(Knob).all );
end loop;
TCTouch.Validate( "AGBAKGBA", "Allocated Objects" );
-- Check use of static tagged declared objects,
-- calling non-primitive functions.
if not Switch.TC_Non_Disp( A_Switch ) then
Report.Failed( "Bad Value 1" );
end if;
TCTouch.Validate( "X", "Nonprimitive Function" );
if not Switch.TC_Non_Disp( A_Dimmer ) then
Report.Failed( "Bad Value 2" );
end if;
TCTouch.Validate( "Y", "Nonprimitive Function" );
if not Switch.TC_Non_Disp( An_Autodim ) then
Report.Failed( "Bad Value 3" );
end if;
TCTouch.Validate( "Z", "Nonprimitive Function" );
A_Switch := Switch.Create;
A_Dimmer := Switch.Create;
An_Autodim := Switch.Create;
TCTouch.Validate( "123", "Primitive Function" );
-- View conversions
Switch.Brighten( An_Autodim, 50 );
Switch.Flip( Switch.Toggle( A_Switch ) );
Switch.Flip( Switch.Toggle( A_Dimmer ) );
Switch.Flip( Switch.Dimmer( An_Autodim ) );
TCTouch.Validate( "DAAGBA", "View Conversions" );
-- statically tagged controlling operands (specific types) provided to
-- class-wide functions
if Switch.On( A_Switch )
or Switch.On( A_Dimmer )
or Switch.On( An_Autodim ) then
Report.Failed( "Bad Value 4" );
end if;
TCTouch.Validate( "BBB", "Class-wide" );
-- statically tagged controlling operands qualified expressions provided to
-- primitive functions, also using context to determine call to a
-- class-wide function.
if Switch.Off( Switch.Toggle'( Switch.Create ) )
or else Switch.Off( Switch.Dimmer'( Switch.Create ) )
or else Switch.Off( Switch.Auto_Dimmer'( Switch.Create ) ) then
Report.Failed( "Bad Value 5" );
end if;
TCTouch.Validate( "1C2C3C", "Qualified Expression/Class-Wide" );
Report.Result;
end C392C05;
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