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1 149 jeremybenn
-- C760002.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 assignment to an object of a (non-limited) controlled
28
--      type causes the Adjust operation of the type to be called.
29
--      Check that Adjust is called after copying the value of the
30
--      source expression to the target object.
31
--
32
--      Check that Adjust is called for all controlled components when
33
--      the containing object is assigned.  (Test this for the cases
34
--      where the type of the containing object is controlled and
35
--      noncontrolled; test this for initialization as well as
36
--      assignment statements.)
37
--
38
--      Check that for an object of a controlled type with controlled
39
--      components, Adjust for each of the components is called before
40
--      the containing object is adjusted.
41
--
42
--      Check that an Adjust procedure for a Limited_Controlled type is
43
--      not called by the implementation.
44
--
45
-- TEST DESCRIPTION:
46
--      This test is loosely "derived" from C760001.
47
--
48
--      Visit Tags:
49
--        D - Default value at declaration
50
--        d - Default value at declaration, limited root
51
--        I - initialize at root controlled
52
--        i - initialize at root limited controlled
53
--        A - adjust at root controlled
54
--        X,Y,Z,x,y,z - used in test body
55
--
56
--
57
-- CHANGE HISTORY:
58
--      06 Dec 94   SAIC    ACVC 2.0
59
--      19 Dec 94   SAIC    Correct test assertion logic for Sinister case
60
--
61
--!
62
 
63
---------------------------------------------------------------- C760002_0
64
 
65
with Ada.Finalization;
66
package C760002_0 is
67
  subtype Unique_ID is Natural;
68
  function Unique_Value return Unique_ID;
69
  -- increments each time it's called
70
 
71
  function Most_Recent_Unique_Value return Unique_ID;
72
  -- returns the same value as the most recent call to Unique_Value
73
 
74
  type Root is tagged record
75
    My_ID      : Unique_ID := Unique_Value;
76
    Visit_Tag  : Character := 'D';  -- Default
77
  end record;
78
 
79
  procedure Initialize( R: in out Root );
80
  procedure Adjust    ( R: in out Root );
81
 
82
  type Root_Controlled is new Ada.Finalization.Controlled with record
83
    My_ID      : Unique_ID := Unique_Value;
84
    Visit_Tag  : Character := 'D'; ---------------------------------------- D
85
  end record;
86
 
87
  procedure Initialize( R: in out Root_Controlled );
88
  procedure Adjust    ( R: in out Root_Controlled );
89
 
90
  type Root_Limited_Controlled is
91
       new Ada.Finalization.Limited_Controlled with record
92
    My_ID      : Unique_ID := Unique_Value;
93
    Visit_Tag  : Character := 'd'; ---------------------------------------- d
94
  end record;
95
 
96
  procedure Initialize( R: in out Root_Limited_Controlled );
97
  procedure Adjust    ( R: in out Root_Limited_Controlled );
98
 
99
end C760002_0;
100
 
101
with Report;
102
package body C760002_0 is
103
 
104
  Global_Unique_Counter : Unique_ID := 0;
105
 
106
  function Unique_Value return Unique_ID is
107
  begin
108
    Global_Unique_Counter := Global_Unique_Counter +1;
109
    return Global_Unique_Counter;
110
  end Unique_Value;
111
 
112
  function Most_Recent_Unique_Value return Unique_ID is
113
  begin
114
    return Global_Unique_Counter;
115
  end Most_Recent_Unique_Value;
116
 
117
  procedure Initialize( R: in out Root ) is
118
  begin
119
    Report.Failed("Initialize called for Non_Controlled type");
120
  end Initialize;
121
 
122
  procedure Adjust    ( R: in out Root ) is
123
  begin
124
    Report.Failed("Adjust called for Non_Controlled type");
125
  end Adjust;
126
 
127
  procedure Initialize( R: in out Root_Controlled ) is
128
  begin
129
    R.Visit_Tag := 'I'; --------------------------------------------------- I
130
  end Initialize;
131
 
132
  procedure Adjust( R: in out Root_Controlled ) is
133
  begin
134
    R.Visit_Tag := 'A'; --------------------------------------------------- A
135
  end Adjust;
136
 
137
  procedure Initialize( R: in out Root_Limited_Controlled ) is
138
  begin
139
    R.Visit_Tag := 'i'; --------------------------------------------------- i
140
  end Initialize;
141
 
142
  procedure Adjust( R: in out Root_Limited_Controlled ) is
143
  begin
144
    Report.Failed("Adjust called for Limited_Controlled type");
145
  end Adjust;
146
 
147
end C760002_0;
148
 
149
---------------------------------------------------------------- C760002_1
150
 
151
with Ada.Finalization;
152
with C760002_0;
153
package C760002_1 is
154
 
155
  type Proc_ID is (None, Init, Adj, Fin);
156
 
157
  type Test_Controlled is new C760002_0.Root_Controlled with record
158
    Last_Proc_Called: Proc_ID := None;
159
  end record;
160
 
161
  procedure Initialize( TC: in out Test_Controlled );
162
  procedure Adjust    ( TC: in out Test_Controlled );
163
  procedure Finalize  ( TC: in out Test_Controlled );
164
 
165
  type Nested_Controlled is new C760002_0.Root_Controlled with record
166
    Nested : C760002_0.Root_Controlled;
167
    Last_Proc_Called: Proc_ID := None;
168
  end record;
169
 
170
  procedure Initialize( TC: in out Nested_Controlled );
171
  procedure Adjust    ( TC: in out Nested_Controlled );
172
  procedure Finalize  ( TC: in out Nested_Controlled );
173
 
174
  type Test_Limited_Controlled is
175
       new C760002_0.Root_Limited_Controlled with record
176
    Last_Proc_Called: Proc_ID := None;
177
  end record;
178
 
179
  procedure Initialize( TC: in out Test_Limited_Controlled );
180
  procedure Adjust    ( TC: in out Test_Limited_Controlled );
181
  procedure Finalize  ( TC: in out Test_Limited_Controlled );
182
 
183
  type Nested_Limited_Controlled is
184
       new C760002_0.Root_Limited_Controlled with record
185
    Nested : C760002_0.Root_Limited_Controlled;
186
    Last_Proc_Called: Proc_ID := None;
187
  end record;
188
 
189
  procedure Initialize( TC: in out Nested_Limited_Controlled );
190
  procedure Adjust    ( TC: in out Nested_Limited_Controlled );
191
  procedure Finalize  ( TC: in out Nested_Limited_Controlled );
192
 
193
end C760002_1;
194
 
195
with Report;
196
package body C760002_1 is
197
 
198
  procedure Initialize( TC: in out Test_Controlled ) is
199
  begin
200
    TC.Last_Proc_Called := Init;
201
    C760002_0.Initialize(C760002_0.Root_Controlled(TC));
202
  end Initialize;
203
 
204
  procedure Adjust    ( TC: in out Test_Controlled ) is
205
  begin
206
    TC.Last_Proc_Called := Adj;
207
    C760002_0.Adjust(C760002_0.Root_Controlled(TC));
208
  end Adjust;
209
 
210
  procedure Finalize  ( TC: in out Test_Controlled ) is
211
  begin
212
    TC.Last_Proc_Called := Fin;
213
  end Finalize;
214
 
215
  procedure Initialize( TC: in out Nested_Controlled ) is
216
  begin
217
    TC.Last_Proc_Called := Init;
218
    C760002_0.Initialize(C760002_0.Root_Controlled(TC));
219
  end Initialize;
220
 
221
  procedure Adjust    ( TC: in out Nested_Controlled ) is
222
  begin
223
    TC.Last_Proc_Called := Adj;
224
    C760002_0.Adjust(C760002_0.Root_Controlled(TC));
225
  end Adjust;
226
 
227
  procedure Finalize  ( TC: in out Nested_Controlled ) is
228
  begin
229
    TC.Last_Proc_Called := Fin;
230
  end Finalize;
231
 
232
  procedure Initialize( TC: in out Test_Limited_Controlled ) is
233
  begin
234
    TC.Last_Proc_Called := Init;
235
    C760002_0.Initialize(C760002_0.Root_Limited_Controlled(TC));
236
  end Initialize;
237
 
238
  procedure Adjust    ( TC: in out Test_Limited_Controlled ) is
239
  begin
240
    Report.Failed("Adjust called for Test_Limited_Controlled");
241
  end Adjust;
242
 
243
  procedure Finalize  ( TC: in out Test_Limited_Controlled ) is
244
  begin
245
    TC.Last_Proc_Called := Fin;
246
  end Finalize;
247
 
248
  procedure Initialize( TC: in out Nested_Limited_Controlled ) is
249
  begin
250
    TC.Last_Proc_Called := Init;
251
    C760002_0.Initialize(C760002_0.Root_Limited_Controlled(TC));
252
  end Initialize;
253
 
254
  procedure Adjust    ( TC: in out Nested_Limited_Controlled ) is
255
  begin
256
    Report.Failed("Adjust called for Nested_Limited_Controlled");
257
  end Adjust;
258
 
259
  procedure Finalize  ( TC: in out Nested_Limited_Controlled ) is
260
  begin
261
    TC.Last_Proc_Called := Fin;
262
  end Finalize;
263
 
264
end C760002_1;
265
 
266
---------------------------------------------------------------- C760002
267
 
268
with Report;
269
with TCTouch;
270
with C760002_0;
271
with C760002_1;
272
with Ada.Finalization;
273
procedure C760002 is
274
 
275
  use type C760002_1.Proc_ID;
276
 
277
  -- in the first test, test the simple cases.
278
  -- Also check that assignment causes a call to Adjust for a controlled
279
  -- object.  Check that assignment of a non-controlled object does not call
280
  -- an Adjust procedure.
281
 
282
  procedure Check_Simple_Objects is
283
 
284
    A,B : C760002_0.Root;
285
    S,T : C760002_1.Test_Controlled;
286
    Q   : C760002_1.Test_Limited_Controlled;  -- Adjust call shouldn't happen
287
  begin
288
 
289
    S := T;
290
 
291
    TCTouch.Assert((S.Last_Proc_Called = C760002_1.Adj),
292
                   "Adjust for simple object");
293
    TCTouch.Assert((S.My_ID = T.My_ID),
294
                   "Assignment failed for simple object");
295
 
296
    -- Check that adjust was called
297
    TCTouch.Assert((S.Visit_Tag = 'A'), "Adjust timing incorrect");
298
 
299
    -- Check that Adjust has not been called
300
    TCTouch.Assert_Not((T.Visit_Tag = 'A'), "Adjust incorrectly called");
301
 
302
    -- Check that Adjust does not get called
303
    A.My_ID := A.My_ID +1;
304
    B := A;  -- see: Adjust: Report.Failed
305
 
306
  end Check_Simple_Objects;
307
 
308
  -- in the second test, test a more complex case, check that a controlled
309
  -- component of a controlled object gets processed correctly
310
 
311
  procedure Check_Nested_Objects is
312
    NO1 : C760002_1.Nested_Controlled;
313
    NO2 : C760002_1.Nested_Controlled := NO1;
314
 
315
  begin
316
 
317
    -- NO2 should be flagged with adjust markers
318
    TCTouch.Assert((NO2.Last_Proc_Called = C760002_1.Adj),
319
                   "Adjust not called for NO2 enclosure declaration");
320
    TCTouch.Assert((NO2.Nested.Visit_Tag = 'A'),
321
                   "Adjust not called for NO2 enclosed declaration");
322
 
323
    NO2.Visit_Tag := 'x';
324
    NO2.Nested.Visit_Tag := 'y';
325
 
326
    NO1 := NO2;
327
 
328
    -- NO1 should be flagged with adjust markers
329
    TCTouch.Assert((NO1.Visit_Tag = 'A'),
330
                   "Adjust not called for NO1 enclosure declaration");
331
    TCTouch.Assert((NO1.Nested.Visit_Tag = 'A'),
332
                   "Adjust not called for NO1 enclosed declaration");
333
 
334
  end Check_Nested_Objects;
335
 
336
  procedure Check_Array_Case is
337
    type Array_Simple is array(1..4) of C760002_1.Test_Controlled;
338
    type Array_Nested is array(1..4) of C760002_1.Nested_Controlled;
339
 
340
    Left,Right      : Array_Simple;
341
    Overlap         : Array_Simple := Left;
342
 
343
    Sinister,Dexter : Array_Nested;
344
    Underlap        : Array_Nested := Sinister;
345
 
346
    Now : Natural;
347
 
348
  begin
349
 
350
    -- get a current unique value since initializations
351
    Now := C760002_0.Unique_Value;
352
 
353
    -- check results of declarations
354
    for N in 1..4 loop
355
      TCTouch.Assert(Left(N).My_Id < Now,
356
                     "Initialize for array initial value");
357
      TCTouch.Assert(Overlap(N).My_Id < Now,
358
                     "Adjust for nested array (outer) initial value");
359
      TCTouch.Assert(Sinister(N).Nested.My_Id < Now,
360
                     "Initialize for nested array (inner) initial value");
361
      TCTouch.Assert(Sinister(N).My_Id < Sinister(N).Nested.My_Id,
362
                     "Initialize for enclosure should be after enclosed");
363
      TCTouch.Assert(Overlap(N).Visit_Tag = 'A',"Adjust at declaration");
364
      TCTouch.Assert(Underlap(N).Nested.Visit_Tag = 'A',
365
                     "Adjust at declaration, nested object");
366
    end loop;
367
 
368
    -- set visit tags
369
    for O in 1..4 loop
370
      Overlap(O).Visit_Tag         := 'X';
371
      Underlap(O).Visit_Tag        := 'Y';
372
      Underlap(O).Nested.Visit_Tag := 'y';
373
    end loop;
374
 
375
    -- check that overlapping assignments don't cause odd grief
376
    Overlap(1..3)  := Overlap(2..4);
377
    Underlap(2..4) := Underlap(1..3);
378
 
379
    for M in 2..3 loop
380
      TCTouch.Assert(Overlap(M).Last_Proc_Called = C760002_1.Adj,
381
                     "Adjust for overlap");
382
      TCTouch.Assert(Overlap(M).Visit_Tag = 'A',
383
                     "Adjust for overlap ID");
384
      TCTouch.Assert(Underlap(M).Last_Proc_Called = C760002_1.Adj,
385
                     "Adjust for Underlap");
386
      TCTouch.Assert(Underlap(M).Nested.Visit_Tag = 'A',
387
                     "Adjust for Underlaps nested ID");
388
    end loop;
389
 
390
  end Check_Array_Case;
391
 
392
  procedure Check_Access_Case is
393
    type TC_Ref is access C760002_1.Test_Controlled;
394
    type NC_Ref is access C760002_1.Nested_Controlled;
395
    type TL_Ref is access C760002_1.Test_Limited_Controlled;
396
    type NL_Ref is access C760002_1.Nested_Limited_Controlled;
397
 
398
    A,B : TC_Ref;
399
    C,D : NC_Ref;
400
    E   : TL_Ref;
401
    F   : NL_Ref;
402
 
403
  begin
404
 
405
    A := new C760002_1.Test_Controlled;
406
    B := new C760002_1.Test_Controlled'( A.all );
407
 
408
    C := new C760002_1.Nested_Controlled;
409
    D := new C760002_1.Nested_Controlled'( C.all );
410
 
411
    E := new C760002_1.Test_Limited_Controlled;
412
    F := new C760002_1.Nested_Limited_Controlled;
413
 
414
    TCTouch.Assert(A.Visit_Tag = 'I',"TC Allocation");
415
    TCTouch.Assert(B.Visit_Tag = 'A',"TC Allocation, with value");
416
 
417
    TCTouch.Assert(C.Visit_Tag = 'I',"NC Allocation");
418
    TCTouch.Assert(C.Nested.Visit_Tag = 'I',"NC Allocation, Nested");
419
    TCTouch.Assert(D.Visit_Tag = 'A',"NC Allocation, with value");
420
    TCTouch.Assert(D.Nested.Visit_Tag = 'A',
421
                   "NC Allocation, Nested, with value");
422
 
423
    TCTouch.Assert(E.Visit_Tag = 'i',"TL Allocation");
424
    TCTouch.Assert(F.Visit_Tag = 'i',"NL Allocation");
425
 
426
    A.all := B.all;
427
    C.all := D.all;
428
 
429
    TCTouch.Assert(A.Visit_Tag = 'A',"TC Assignment");
430
    TCTouch.Assert(C.Visit_Tag = 'A',"NC Assignment");
431
    TCTouch.Assert(C.Nested.Visit_Tag = 'A',"NC Assignment, Nested");
432
 
433
  end Check_Access_Case;
434
 
435
  procedure Check_Access_Limited_Array_Case is
436
    type Array_Simple is array(1..4) of C760002_1.Test_Limited_Controlled;
437
    type AS_Ref is access Array_Simple;
438
    type Array_Nested is array(1..4) of C760002_1.Nested_Limited_Controlled;
439
    type AN_Ref is access Array_Nested;
440
 
441
    Simple_Array_Limited : AS_Ref;
442
 
443
    Nested_Array_Limited : AN_Ref;
444
 
445
  begin
446
 
447
    Simple_Array_Limited := new Array_Simple;
448
 
449
    Nested_Array_Limited := new Array_Nested;
450
 
451
    for N in 1..4 loop
452
      TCTouch.Assert(Simple_Array_Limited(N).Last_Proc_Called
453
                     = C760002_1.Init,
454
                     "Initialize for array initial value");
455
      TCTouch.Assert(Nested_Array_Limited(N).Last_Proc_Called
456
                     = C760002_1.Init,
457
                     "Initialize for nested array (outer) initial value");
458
      TCTouch.Assert(Nested_Array_Limited(N).Nested.Visit_Tag = 'i',
459
                     "Initialize for nested array (inner) initial value");
460
    end loop;
461
  end Check_Access_Limited_Array_Case;
462
 
463
begin  -- Main test procedure.
464
 
465
  Report.Test ("C760002", "Check that assignment causes the Adjust " &
466
                          "operation of the type to be called.  Check " &
467
                          "that Adjust is called after copying the " &
468
                          "value of the source expression to the target " &
469
                          "object.  Check that Adjust is called for all " &
470
                          "controlled components when the containing " &
471
                          "object is assigned.  Check that Adjust is " &
472
                          "called for components before the containing " &
473
                          "object is adjusted.  Check that Adjust is not " &
474
                          "called for a Limited_Controlled type by the " &
475
                          "implementation" );
476
 
477
  Check_Simple_Objects;
478
 
479
  Check_Nested_Objects;
480
 
481
  Check_Array_Case;
482
 
483
  Check_Access_Case;
484
 
485
  Check_Access_Limited_Array_Case;
486
 
487
  Report.Result;
488
 
489
end C760002;

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