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|
-- CA110051.AM
--
-- 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 entities and operations declared in a package can be used
-- in the private part of a child of a child of the package.
--
-- TEST DESCRIPTION:
-- Declare a series of library unit packages -- parent, child, and
-- grandchild. The grandchild package will have a private part.
-- From within the private part of the grandchild, make use of
-- components declared in the parent and grandparent packages.
--
-- TEST FILES:
-- The test consists of the following files:
--
-- CA110050.A
-- => CA110051.AM
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
-- Grandchild Package Message.Text.Encoded
package CA110050_0.CA110050_1.CA110050_2 is
type Coded_Message is new Text_Message_Type with private;
procedure Send (Message : in Coded_Message;
Confirm : out Coded_Message;
Status : out Boolean);
function Encode (Message : Text_Message_Type) return Coded_Message;
function Decode (Message : Coded_Message) return Boolean;
function Test_Connection return Boolean;
private
Uncoded : Descriptor renames Null_Descriptor_Value; -- Grandparent object.
type Coded_Message is new Text_Message_Type with -- Parent type.
record
Key : Descriptor := Uncoded;
Coded_Key : Descriptor := Next_Available_Message;
-- Grandparent type, grandparent function.
Scrambled : Text_Type := Null_Text; -- Parent object.
end record;
Coded_Msg : Coded_Message;
type Blank_Message is new Message_Type with -- Grandparent type.
record
ID : Descriptor := Next_Available_Message;
-- Grandparent type, grandparent function.
end record;
Test_Message : Blank_Message;
Confirm_String : constant String := "OK";
Scrambled_String : constant String := "KO";
Confirm_Text : Text_Type (Confirm_String'Length) :=
(Max_Length => Confirm_String'Length,
Length => Confirm_String'Length,
Text_Field => Confirm_String);
Scrambled_Text : Text_Type (Scrambled_String'Length) :=
(Max_Length => Scrambled_String'Length,
Length => Scrambled_String'Length,
Text_Field => Scrambled_String);
end CA110050_0.CA110050_1.CA110050_2; -- Grandchild Pkg Message.Text.Encoded
--=================================================================--
-- Grandchild Package body Message.Text.Encoded
package body CA110050_0.CA110050_1.CA110050_2 is
procedure Send (Message : in Coded_Message;
Confirm : out Coded_Message;
Status : out Boolean) is
Confirmation_Message : Coded_Message :=
(Number => Message.Number,
Text => Confirm_Text,
Key => Message.Number,
Coded_Key => Message.Number,
Scrambled => Scrambled_Text);
begin -- Dummy processing unit.
Confirm := Confirmation_Message;
if Confirm.Number /= Null_Message_Descriptor then
Status := True;
else
Status := False;
end if;
end Send;
-------------------------------------------------------------------------
function Encode (Message : Text_Message_Type) return Coded_Message is
begin
Coded_Msg.Number := Message.Number;
if Message.Text.Length > 0 then
Coded_Msg.Text := Message.Text; -- Record assignment.
Coded_Msg.Key := Message.Number; -- Same as msg number.
Coded_Msg.Coded_Key := Message.Number; -- Same as msg number.
Coded_Msg.Scrambled := Message.Text; -- Dummy processing.
end if;
return (Coded_Msg);
end Encode;
-------------------------------------------------------------------------
function Decode (Message : Coded_Message) return Boolean is
Decoded : Boolean := False;
begin
if (Message.Text.Length = Confirm_String'Length) and then
(Message.Text.Text_Field = Confirm_String) and then
(Message.Scrambled.Length = Scrambled_String'Length) and then
(Message.Scrambled.Text_Field = Scrambled_String) and then
(Message.Coded_Key = 15)
then
Decoded := True;
end if;
return (Decoded);
end Decode;
-------------------------------------------------------------------------
function Test_Connection return Boolean is
begin
return Test_Message.Id = 10;
end Test_Connection;
end CA110050_0.CA110050_1.CA110050_2;
-- Grandchild Package body Message.Text.Encoded
--=================================================================--
with CA110050_0.CA110050_1.CA110050_2;
with Report;
procedure CA110051 is
package Message_Package renames CA110050_0.CA110050_1;
package Code_Package renames CA110050_0.CA110050_1.CA110050_2;
Message_String : constant String := "One if by land, two if by sea";
Message_Text : Message_Package.Text_Type (Message_String'Length) :=
(Max_Length => Message_String'Length,
Length => Message_String'Length,
Text_Field => Message_String);
Message : Message_Package.Text_Message_Type :=
(Number => CA110050_0.Next_Available_Message,
Text => Message_Text);
Confirmation_Message : Code_Package.Coded_Message;
Verification_OK : Boolean := False;
Transmission_OK : Boolean := False;
begin
-- This test simulates the use of child library unit packages to implement
-- a message encoding and transmission scheme. The full capability of the
-- encoding and transmission mechanisms are not developed here, but the
-- intent is to demonstrate that a grandchild library unit package with a
-- private part will provide the framework for this type of processing.
Report.Test ("CA110051", "Check that entities and operations declared " &
"in a package can be used in the private part " &
"of a child of a child of the package");
-- The following code demonstrates the use
-- of functionality contained in a grandchild
-- library unit. The grandchild unit made use
-- of components declared in the ancestor
-- packages.
Code_Package.Send -- Message object declared
(Message => Code_Package.Encode (Message), -- above in "encoded" by a
Confirm => Confirmation_Message, -- call to grandchild pkg
Status => Transmission_OK); -- function call, reseting
-- fields and returning a
-- coded message to the
-- parameter. The confirm
-- parameter receives an
-- encoded message value
-- from proc Send, which is
-- "decoded"/verified below.
if not Code_Package.Test_Connection then
Report.Failed ("Bad initialization");
end if;
Verification_OK := Code_Package.Decode (Confirmation_Message);
if not (Transmission_OK and Verification_OK) then
Report.Failed ("Message transmission failure");
end if;
Report.Result;
end CA110051;
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