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-- C393A03.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 a non-abstract primitive subprogram of an abstract
-- type can be called as a dispatching operation and that the body
-- of this subprogram can make a dispatching call to an abstract
-- operation of the corresponding abstract type.
--
-- TEST DESCRIPTION:
-- This test expands on the class family defined in foundation F393A00
-- by deriving a new abstract type from the root abstract type "Object".
-- The subprograms defined for the new abstract type are then
-- appropriately overridden, and the test ultimately calls various
-- mixtures of these subprograms to check that the dispatching occurs
-- correctly.
--
-- TEST FILES:
-- The following files comprise this test:
--
-- F393A00.A (foundation code)
-- C393A03.A
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
-- 19 Dec 94 SAIC Removed ARM references from objective text.
-- 23 Oct 95 SAIC Fixed bugs for ACVC 2.0.1
--
--!
------------------------------------------------------------------- C393A03_0
with F393A00_1;
package C393A03_0 is
type Counting_Object is abstract new F393A00_1.Object with private;
-- inherits Initialize, Swap (abstract) and Create (abstract)
procedure Bump ( A_Counter: in out Counting_Object );
procedure Clear( A_Counter: in out Counting_Object ) is abstract;
procedure Zero ( A_Counter: in out Counting_Object );
function Value( A_Counter: Counting_Object'Class ) return Natural;
private
type Counting_Object is abstract new F393A00_1.Object with
record
Tally : Natural :=0;
end record;
end C393A03_0;
-----------------------------------------------------------------------------
with F393A00_0;
package body C393A03_0 is
procedure Bump ( A_Counter: in out Counting_Object ) is
begin
F393A00_0.TC_Touch('A');
A_Counter.Tally := A_Counter.Tally +1;
end Bump;
procedure Zero ( A_Counter: in out Counting_Object ) is
begin
F393A00_0.TC_Touch('B');
-- dispatching call to abstract operation of Counting_Object
Clear( Counting_Object'Class(A_Counter) );
A_Counter.Tally := 0;
end Zero;
function Value( A_Counter: Counting_Object'Class ) return Natural is
begin
F393A00_0.TC_Touch('C');
return A_Counter.Tally;
end Value;
end C393A03_0;
------------------------------------------------------------------- C393A03_1
with C393A03_0;
package C393A03_1 is
type Modular_Object is new C393A03_0.Counting_Object with private;
-- inherits Initialize, Bump, Zero and Value,
-- inherits abstract Swap, Create and Clear
procedure Swap( A,B: in out Modular_Object );
procedure Clear( It: in out Modular_Object );
procedure Set_Max( It : in out Modular_Object; Value : Natural );
function Create return Modular_Object;
private
type Modular_Object is new C393A03_0.Counting_Object with
record
Max_Value : Natural;
end record;
end C393A03_1;
-----------------------------------------------------------------------------
with F393A00_0;
package body C393A03_1 is
procedure Swap( A,B: in out Modular_Object ) is
T : constant Modular_Object := B;
begin
F393A00_0.TC_Touch('1');
B := A;
A := T;
end Swap;
procedure Clear( It: in out Modular_Object ) is
begin
F393A00_0.TC_Touch('2');
null;
end Clear;
procedure Set_Max( It : in out Modular_Object; Value : Natural ) is
begin
F393A00_0.TC_Touch('3');
It.Max_Value := Value;
end Set_Max;
function Create return Modular_Object is
AMO : Modular_Object;
begin
F393A00_0.TC_Touch('4');
AMO.Max_Value := Natural'Last;
return AMO;
end Create;
end C393A03_1;
--------------------------------------------------------------------- C393A03
with Report;
with F393A00_0;
with F393A00_1;
with C393A03_0;
with C393A03_1;
procedure C393A03 is
A_Thing : C393A03_1.Modular_Object;
Another_Thing : C393A03_1.Modular_Object;
procedure Initialize( It: in out C393A03_0.Counting_Object'Class ) is
begin
C393A03_0.Initialize( It ); -- dispatch to inherited procedure
end Initialize;
procedure Bump( It: in out C393A03_0.Counting_Object'Class ) is
begin
C393A03_0.Bump( It ); -- dispatch to non-abstract procedure
end Bump;
procedure Set_Max( It : in out C393A03_1.Modular_Object'Class;
Val : Natural) is
begin
C393A03_1.Set_Max( It, Val ); -- dispatch to non-abstract procedure
end Set_Max;
procedure Swap( A, B : in out C393A03_0.Counting_Object'Class ) is
begin
C393A03_0.Swap( A, B ); -- dispatch to inherited abstract procedure
end Swap;
procedure Zero( It: in out C393A03_0.Counting_Object'Class ) is
begin
C393A03_0.Zero( It ); -- dispatch to non-abstract procedure
end Zero;
begin -- Main test procedure.
Report.Test ("C393A03", "Check that a non-abstract primitive subprogram "
& "of an abstract type can be called as a "
& "dispatching operation and that the body of this "
& "subprogram can make a dispatching call to an "
& "abstract operation of the corresponding "
& "abstract type" );
A_Thing := C393A03_1.Create; -- Max_Value = Natural'Last
F393A00_0.TC_Validate( "4", "Overridden primitive layer 2");
Initialize( A_Thing );
Initialize( Another_Thing );
F393A00_0.TC_Validate( "aa", "Non-abstract primitive layer 0");
Bump( A_Thing ); -- Tally = 1
F393A00_0.TC_Validate( "A", "Non-abstract primitive layer 1");
Set_Max( A_Thing, 42 ); -- Max_Value = 42
F393A00_0.TC_Validate( "3", "Non-abstract normal layer 2");
if not F393A00_1.Initialized( A_Thing ) then
Report.Failed("Initialize didn't");
end if;
F393A00_0.TC_Validate( "b", "Class-wide layer 0");
Swap( A_Thing, Another_Thing );
F393A00_0.TC_Validate( "1", "Overridden abstract layer 2");
Zero( A_Thing );
F393A00_0.TC_Validate( "B2", "Non-abstract layer 0, calls dispatch");
if C393A03_0.Value( A_Thing ) /= 0 then
Report.Failed("Zero didn't");
end if;
F393A00_0.TC_Validate( "C", "Class-wide normal layer 2");
Report.Result;
end C393A03;
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