1-- C391001.A 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 structures nesting discriminated records as 28-- components in record extension are correctly supported. Check 29-- for this using limited private structures. 30-- Check that record extensions inherit all the visible components 31-- of their ancestor types. 32-- Check that discriminants are correctly inherited. 33-- 34-- TEST DESCRIPTION: 35-- This test defines a textbook object, a serial number plaque. 36-- This object is used in each of several other structures modeled 37-- after those used in an existing antenna modeling software system. 38-- Record types discriminated and undiscriminated are nested to 39-- produce a layered design. Some parametrization is programmatic; 40-- some parametrization is data-driven. 41-- 42-- 43-- 44-- CHANGE HISTORY: 45-- 06 Dec 94 SAIC ACVC 2.0 46-- 19 Dec 94 SAIC Removed RM references from objective text. 47-- 19 Apr 95 SAIC Added "limited" to full type def of "Object" 48-- 49--! 50 51 package C391001_1 is 52 type Object is tagged limited private; 53 -- Constructor operation 54 procedure Create( The_Plaque : in out Object ); 55 -- Selector operations 56 function "="( Left_Plaque,Right_Plaque : Object ) return Boolean; 57 function TC_Match( Left_Plaque : Object; Right_Natural : Natural ) 58 return Boolean; 59 function Serial_Number( A_Plaque : Object ) return Natural; 60 Unserialized : exception; -- Serial_Number called before Create 61 Reserialized : exception; -- Create called twice 62 private 63 type Object is tagged limited record 64 Serial_Number : Natural := 0; 65 end record; 66 end C391001_1; 67 68 package body C391001_1 is 69 Counter : Natural := 0; 70 procedure Create( The_Plaque : in out Object ) is 71 begin 72 if The_Plaque.Serial_Number = 0 then 73 Counter := Counter +1; 74 The_Plaque.Serial_Number := Counter; 75 else 76 raise Reserialized; 77 end if; 78 end Create; 79 80 function "="( Left_Plaque,Right_Plaque : Object ) return Boolean is 81 begin 82 return (Left_Plaque.Serial_Number = Right_Plaque.Serial_Number) 83 and then -- two uninitialized plates are unequal 84 (Left_Plaque.Serial_Number /= 0); 85 end "="; 86 87 function TC_Match( Left_Plaque : Object; Right_Natural : Natural ) 88 return Boolean is 89 begin 90 return (Left_Plaque.Serial_Number = Right_Natural); 91 end TC_Match; 92 93 function Serial_Number( A_Plaque : Object ) return Natural is 94 begin 95 if A_Plaque.Serial_Number = 0 then 96 raise Unserialized; 97 end if; 98 return A_Plaque.Serial_Number; 99 end Serial_Number; 100 end C391001_1; 101 102 with C391001_1; 103 package C391001_2 is -- package Boards is 104 105 package Plaque renames C391001_1; 106 107 type Modes is (Receiving, Transmitting, Standby); 108 type Link(Mode: Modes := Standby) is record 109 case Mode is 110 when Receiving => TC_R : Integer := 100; 111 when Transmitting => TC_T : Integer := 200; 112 when Standby => TC_S : Integer := 300; -- TGA, TSA, SSA 113 end case; 114 end record; 115 116 type Data_Formats is (S_Band, KU_Band, UHF); 117 118 119 type Transceiver(Band: Data_Formats) is tagged limited record 120 ID : Plaque.Object; 121 The_Link: Link; 122 case Band is 123 when S_Band => TC_S_Band_Data : Integer := 1; -- TGA, SSA 124 when KU_Band => TC_KU_Band_Data : Integer := 2; -- TSA 125 when UHF => TC_UHF_Data : Integer := 3; 126 end case; 127 end record; 128 end C391001_2; 129 130 with C391001_1; 131 with C391001_2; 132 package C391001_3 is -- package Modules 133 package Plaque renames C391001_1; 134 package Boards renames C391001_2; 135 use type Boards.Modes; 136 use type Boards.Data_Formats; 137 138 type Command_Formats is ( Set_Compression_Code, 139 Set_Data_Rate, 140 Set_Power_State ); 141 142 type Electronics_Module(EBand : Boards.Data_Formats; 143 The_Command_Format: Command_Formats) 144 is new Boards.Transceiver(EBand) with record 145 case The_Command_Format is 146 when Set_Compression_Code => TC_SCC : Integer := 10; -- SSA 147 when Set_Data_Rate => TC_SDR : Integer := 20; -- TGA 148 when Set_Power_State => TC_SPS : Integer := 30; -- TSA 149 end case; 150 end record; 151 end C391001_3; 152 153 with Report; 154 with C391001_1; 155 with C391001_2; 156 with C391001_3; 157 procedure C391001 is 158 package Plaque renames C391001_1; 159 package Boards renames C391001_2; 160 package Modules renames C391001_3; 161 use type Boards.Modes; 162 use type Boards.Data_Formats; 163 use type Modules.Command_Formats; 164 165 type Azimuth is range 0..359; 166 167 type Ground_Antenna(The_Band : Boards.Data_Formats; 168 The_Command_Format: Modules.Command_Formats) is 169 record 170 ID : Plaque.Object; 171 Electronics : Modules.Electronics_Module(The_Band,The_Command_Format); 172 Pointing : Azimuth; 173 end record; 174 175 type Space_Antenna(The_Band : Boards.Data_Formats := Boards.KU_Band; 176 The_Command : Modules.Command_Formats 177 := Modules.Set_Power_State) 178 is 179 record 180 ID : Plaque.Object; 181 Electronics : Modules.Electronics_Module(The_Band,The_Command); 182 end record; 183 184 The_Ground_Antenna : Ground_Antenna (Boards.S_Band, 185 Modules.Set_Data_Rate); 186 The_Space_Antenna : Space_Antenna; 187 Space_Station_Antenna : Space_Antenna (Boards.S_Band, 188 Modules.Set_Compression_Code); 189 190 191 procedure Validate( Condition : Boolean; Message: String ) is 192 begin 193 if not Condition then 194 Report.Failed("Failed " & Message ); 195 end if; 196 end Validate; 197 198 begin 199 Report.Test("C391001", "Check nested tagged discriminated " 200 & "record structures"); 201 202 Plaque.Create( The_Ground_Antenna.ID ); -- 1 203 Plaque.Create( The_Ground_Antenna.Electronics.ID ); -- 2 204 Plaque.Create( The_Space_Antenna.ID ); -- 3 205 Plaque.Create( The_Space_Antenna.Electronics.ID ); -- 4 206 Plaque.Create( Space_Station_Antenna.ID ); -- 5 207 Plaque.Create( Space_Station_Antenna.Electronics.ID );-- 6 208 209 The_Ground_Antenna.Pointing := 180; 210 Validate( The_Ground_Antenna.The_Band = Boards.S_Band, "TGA discr 1" ); 211 Validate( The_Ground_Antenna.The_Command_Format = Modules.Set_Data_Rate, 212 "TGA discr 2" ); 213 Validate( Plaque.TC_Match(The_Ground_Antenna.ID,1), "TGA comp 1" ); 214 Validate( The_Ground_Antenna.Electronics.EBand = Boards.S_Band, 215 "TGA comp 2.discr 1" ); 216 Validate( The_Ground_Antenna.Electronics.The_Command_Format 217 = Modules.Set_Data_Rate, "TGA comp 2.discr 2" ); 218 Validate( The_Ground_Antenna.Electronics.TC_SDR = 20, 219 "TGA comp 2.1" ); 220 Validate( Plaque.TC_Match( The_Ground_Antenna.Electronics.ID, 2 ), 221 "TGA comp 2.inher.1" ); 222 Validate( The_Ground_Antenna.Electronics.The_Link.Mode = Boards.Standby, 223 "TGA comp 2.inher.2.discr" ); 224 Validate( The_Ground_Antenna.Electronics.The_Link.TC_S = 300, 225 "TGA comp 2.inher.2.1" ); 226 Validate( The_Ground_Antenna.Electronics.TC_S_Band_Data = 1, 227 "TGA comp 2.inher.3" ); 228 Validate( The_Ground_Antenna.Pointing = 180, "TGA comp 3" ); 229 230 Validate( The_Space_Antenna.The_Band = Boards.KU_Band, "TSA discr 1"); 231 Validate( The_Space_Antenna.The_Command = Modules.Set_Power_State, 232 "TSA discr 2"); 233 Validate( Plaque.TC_Match(The_Space_Antenna.ID,3), 234 "TSA comp 1"); 235 Validate( The_Space_Antenna.Electronics.EBand = Boards.KU_Band, 236 "TSA comp 2.discr 1"); 237 Validate( The_Space_Antenna.Electronics.The_Command_Format 238 = Modules.Set_Power_State, "TSA comp 2.discr 2"); 239 Validate( Plaque.TC_Match(The_Space_Antenna.Electronics.ID,4), 240 "TSA comp 2.inher.1"); 241 Validate( The_Space_Antenna.Electronics.The_Link.Mode = Boards.Standby, 242 "TSA comp 2.inher.2.discr"); 243 Validate( The_Space_Antenna.Electronics.The_Link.TC_S = 300, 244 "TSA comp 2.inher.2.1"); 245 Validate( The_Space_Antenna.Electronics.TC_KU_Band_Data = 2, 246 "TSA comp 2.inher.3"); 247 Validate( The_Space_Antenna.Electronics.TC_SPS = 30, 248 "TSA comp 2.1"); 249 250 Validate( Space_Station_Antenna.The_Band = Boards.S_Band, "SSA discr 1"); 251 Validate( Space_Station_Antenna.The_Command = Modules.Set_Compression_Code, 252 "SSA discr 2"); 253 Validate( Plaque.TC_Match(Space_Station_Antenna.ID,5), 254 "SSA comp 1"); 255 Validate( Space_Station_Antenna.Electronics.EBand = Boards.S_Band, 256 "SSA comp 2.discr 1"); 257 Validate( Space_Station_Antenna.Electronics.The_Command_Format 258 = Modules.Set_Compression_Code, "SSA comp 2.discr 2"); 259 Validate( Plaque.TC_Match(Space_Station_Antenna.Electronics.ID,6), 260 "SSA comp 2.inher.1"); 261 Validate( Space_Station_Antenna.Electronics.The_Link.Mode = Boards.Standby, 262 "SSA comp 2.inher.2.discr"); 263 Validate( Space_Station_Antenna.Electronics.The_Link.TC_S = 300, 264 "SSA comp 2.inher.2.1"); 265 Validate( Space_Station_Antenna.Electronics.TC_S_Band_Data = 1, 266 "SSA comp 2.inher.3"); 267 Validate( Space_Station_Antenna.Electronics.TC_SCC = 10, 268 "SSA comp 2.1"); 269 270 The_Ground_Antenna.Electronics.TC_SDR := 1001; 271 The_Ground_Antenna.Electronics.The_Link := 272(Boards.Transmitting,2001); 273 The_Ground_Antenna.Electronics.TC_S_Band_Data := 3001; 274 The_Ground_Antenna.Pointing := 41; 275 276 The_Space_Antenna.Electronics.The_Link := (Boards.Receiving,1010); 277 The_Space_Antenna.Electronics.TC_KU_Band_Data := 2020; 278 The_Space_Antenna.Electronics.TC_SPS := 3030; 279 280 Space_Station_Antenna.Electronics.The_Link 281 := The_Space_Antenna.Electronics.The_Link; 282 Space_Station_Antenna.Electronics.The_Link.TC_R := 111; 283 Space_Station_Antenna.Electronics.TC_S_Band_Data := 222; 284 Space_Station_Antenna.Electronics.TC_SCC := 333; 285 286 ---------------------------------------------------------------------- 287 begin -- should fail discriminant check 288 The_Ground_Antenna.Electronics.TC_SCC := 909; 289 Report.Failed("Discriminant check, no exception"); 290 exception 291 when Constraint_Error => null; 292 when others => 293 Report.Failed("Discriminant check, wrong exception"); 294 end; 295 296 Validate( The_Ground_Antenna.Electronics.TC_SDR = 1001, 297 "assigned value 1"); 298 Validate( The_Ground_Antenna.Electronics.The_Link.Mode 299 = Boards.Transmitting, 300 "assigned value 2.1"); 301 Validate( The_Ground_Antenna.Electronics.The_Link.TC_T = 2001, 302 "assigned value 2.2"); 303 Validate( The_Ground_Antenna.Electronics.TC_S_Band_Data = 3001, 304 "assigned value 3"); 305 Validate( The_Ground_Antenna.Pointing = 41, 306 "assigned value 4"); 307 308 Validate( The_Space_Antenna.Electronics.The_Link.Mode = Boards.Receiving, 309 "assigned value 5.1"); 310 Validate( The_Space_Antenna.Electronics.The_Link.TC_R = 1010, 311 "assigned value 5.2"); 312 Validate( The_Space_Antenna.Electronics.TC_KU_Band_Data = 2020, 313 "assigned value 6"); 314 Validate( The_Space_Antenna.Electronics.TC_SPS = 3030, 315 "assigned value 7"); 316 317 Validate( Space_Station_Antenna.Electronics.The_Link.Mode 318 = Boards.Receiving, 319 "assigned value 8.1"); 320 Validate( Space_Station_Antenna.Electronics.The_Link.TC_R = 111, 321 "assigned value 8.2"); 322 Validate( Space_Station_Antenna.Electronics.TC_S_Band_Data = 222, 323 "assigned value 9"); 324 Validate( Space_Station_Antenna.Electronics.TC_SCC = 333, 325 "assigned value 10"); 326 327 Report.Result; 328 329end C391001; 330