-- 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;