1-- CA110051.AM 2-- 3-- Grant of Unlimited Rights 4-- 5-- Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687, 6-- F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained 7-- unlimited rights in the software and documentation contained herein. 8-- Unlimited rights are defined in DFAR 252.227-7013(a)(19). By making 9-- this public release, the Government intends to confer upon all 10-- recipients unlimited rights equal to those held by the Government. 11-- These rights include rights to use, duplicate, release or disclose the 12-- released technical data and computer software in whole or in part, in 13-- any manner and for any purpose whatsoever, and to have or permit others 14-- to do so. 15-- 16-- DISCLAIMER 17-- 18-- ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR 19-- DISCLOSED ARE AS IS. THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED 20-- WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE 21-- SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE 22-- OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A 23-- PARTICULAR PURPOSE OF SAID MATERIAL. 24--* 25-- 26-- OBJECTIVE: 27-- Check that entities and operations declared in a package can be used 28-- in the private part of a child of a child of the package. 29-- 30-- TEST DESCRIPTION: 31-- Declare a series of library unit packages -- parent, child, and 32-- grandchild. The grandchild package will have a private part. 33-- From within the private part of the grandchild, make use of 34-- components declared in the parent and grandparent packages. 35-- 36-- TEST FILES: 37-- The test consists of the following files: 38-- 39-- CA110050.A 40-- => CA110051.AM 41-- 42-- 43-- CHANGE HISTORY: 44-- 06 Dec 94 SAIC ACVC 2.0 45-- 46--! 47 48 -- Grandchild Package Message.Text.Encoded 49package CA110050_0.CA110050_1.CA110050_2 is 50 51 type Coded_Message is new Text_Message_Type with private; 52 53 procedure Send (Message : in Coded_Message; 54 Confirm : out Coded_Message; 55 Status : out Boolean); 56 57 function Encode (Message : Text_Message_Type) return Coded_Message; 58 function Decode (Message : Coded_Message) return Boolean; 59 function Test_Connection return Boolean; 60 61private 62 63 Uncoded : Descriptor renames Null_Descriptor_Value; -- Grandparent object. 64 65 type Coded_Message is new Text_Message_Type with -- Parent type. 66 record 67 Key : Descriptor := Uncoded; 68 Coded_Key : Descriptor := Next_Available_Message; 69 -- Grandparent type, grandparent function. 70 Scrambled : Text_Type := Null_Text; -- Parent object. 71 end record; 72 73 Coded_Msg : Coded_Message; 74 75 type Blank_Message is new Message_Type with -- Grandparent type. 76 record 77 ID : Descriptor := Next_Available_Message; 78 -- Grandparent type, grandparent function. 79 end record; 80 81 Test_Message : Blank_Message; 82 83 Confirm_String : constant String := "OK"; 84 Scrambled_String : constant String := "KO"; 85 86 Confirm_Text : Text_Type (Confirm_String'Length) := 87 (Max_Length => Confirm_String'Length, 88 Length => Confirm_String'Length, 89 Text_Field => Confirm_String); 90 91 Scrambled_Text : Text_Type (Scrambled_String'Length) := 92 (Max_Length => Scrambled_String'Length, 93 Length => Scrambled_String'Length, 94 Text_Field => Scrambled_String); 95 96end CA110050_0.CA110050_1.CA110050_2; -- Grandchild Pkg Message.Text.Encoded 97 98 --=================================================================-- 99 100 -- Grandchild Package body Message.Text.Encoded 101package body CA110050_0.CA110050_1.CA110050_2 is 102 103 procedure Send (Message : in Coded_Message; 104 Confirm : out Coded_Message; 105 Status : out Boolean) is 106 107 Confirmation_Message : Coded_Message := 108 (Number => Message.Number, 109 Text => Confirm_Text, 110 Key => Message.Number, 111 Coded_Key => Message.Number, 112 Scrambled => Scrambled_Text); 113 114 begin -- Dummy processing unit. 115 Confirm := Confirmation_Message; 116 if Confirm.Number /= Null_Message_Descriptor then 117 Status := True; 118 else 119 Status := False; 120 end if; 121 end Send; 122 ------------------------------------------------------------------------- 123 function Encode (Message : Text_Message_Type) return Coded_Message is 124 begin 125 Coded_Msg.Number := Message.Number; 126 if Message.Text.Length > 0 then 127 Coded_Msg.Text := Message.Text; -- Record assignment. 128 Coded_Msg.Key := Message.Number; -- Same as msg number. 129 Coded_Msg.Coded_Key := Message.Number; -- Same as msg number. 130 Coded_Msg.Scrambled := Message.Text; -- Dummy processing. 131 end if; 132 return (Coded_Msg); 133 end Encode; 134 ------------------------------------------------------------------------- 135 function Decode (Message : Coded_Message) return Boolean is 136 Decoded : Boolean := False; 137 begin 138 if (Message.Text.Length = Confirm_String'Length) and then 139 (Message.Text.Text_Field = Confirm_String) and then 140 (Message.Scrambled.Length = Scrambled_String'Length) and then 141 (Message.Scrambled.Text_Field = Scrambled_String) and then 142 (Message.Coded_Key = 15) 143 then 144 Decoded := True; 145 end if; 146 return (Decoded); 147 end Decode; 148 ------------------------------------------------------------------------- 149 function Test_Connection return Boolean is 150 begin 151 return Test_Message.Id = 10; 152 end Test_Connection; 153 154end CA110050_0.CA110050_1.CA110050_2; 155 -- Grandchild Package body Message.Text.Encoded 156 157 --=================================================================-- 158 159with CA110050_0.CA110050_1.CA110050_2; 160with Report; 161 162procedure CA110051 is 163 164 package Message_Package renames CA110050_0.CA110050_1; 165 package Code_Package renames CA110050_0.CA110050_1.CA110050_2; 166 167 Message_String : constant String := "One if by land, two if by sea"; 168 169 Message_Text : Message_Package.Text_Type (Message_String'Length) := 170 (Max_Length => Message_String'Length, 171 Length => Message_String'Length, 172 Text_Field => Message_String); 173 174 Message : Message_Package.Text_Message_Type := 175 (Number => CA110050_0.Next_Available_Message, 176 Text => Message_Text); 177 178 Confirmation_Message : Code_Package.Coded_Message; 179 Verification_OK : Boolean := False; 180 Transmission_OK : Boolean := False; 181 182begin 183 184-- This test simulates the use of child library unit packages to implement 185-- a message encoding and transmission scheme. The full capability of the 186-- encoding and transmission mechanisms are not developed here, but the 187-- intent is to demonstrate that a grandchild library unit package with a 188-- private part will provide the framework for this type of processing. 189 190 Report.Test ("CA110051", "Check that entities and operations declared " & 191 "in a package can be used in the private part " & 192 "of a child of a child of the package"); 193 194 -- The following code demonstrates the use 195 -- of functionality contained in a grandchild 196 -- library unit. The grandchild unit made use 197 -- of components declared in the ancestor 198 -- packages. 199 200 Code_Package.Send -- Message object declared 201 (Message => Code_Package.Encode (Message), -- above in "encoded" by a 202 Confirm => Confirmation_Message, -- call to grandchild pkg 203 Status => Transmission_OK); -- function call, reseting 204 -- fields and returning a 205 -- coded message to the 206 -- parameter. The confirm 207 -- parameter receives an 208 -- encoded message value 209 -- from proc Send, which is 210 -- "decoded"/verified below. 211 212 if not Code_Package.Test_Connection then 213 Report.Failed ("Bad initialization"); 214 end if; 215 216 Verification_OK := Code_Package.Decode (Confirmation_Message); 217 218 if not (Transmission_OK and Verification_OK) then 219 Report.Failed ("Message transmission failure"); 220 end if; 221 222 Report.Result; 223 224end CA110051; 225