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