1-- C34007U.ADA
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-- FOR DERIVED ACCESS TYPES WHOSE DESIGNATED TYPE IS A PRIVATE TYPE
26-- WITH DISCRIMINANTS:
27
28--   CHECK THAT ALL VALUES OF THE PARENT (BASE) TYPE ARE PRESENT FOR THE
29--   DERIVED (BASE) TYPE WHEN THE DERIVED TYPE DEFINITION IS
30--   CONSTRAINED.
31
32--   CHECK THAT ANY CONSTRAINT IMPOSED ON THE PARENT SUBTYPE IS ALSO
33--   IMPOSED ON THE DERIVED SUBTYPE.
34
35-- JRK 9/30/86
36
37WITH REPORT; USE REPORT;
38
39PROCEDURE C34007U IS
40
41     SUBTYPE COMPONENT IS INTEGER;
42
43     PACKAGE PKG_D IS
44
45          SUBTYPE LENGTH IS NATURAL RANGE 0 .. 10;
46
47          TYPE DESIGNATED (B : BOOLEAN := TRUE; L : LENGTH := 1) IS
48                          PRIVATE;
49
50          FUNCTION CREATE ( B : BOOLEAN;
51                            L : LENGTH;
52                            I : INTEGER;
53                            S : STRING;
54                            C : COMPONENT;
55                            F : FLOAT
56                          ) RETURN DESIGNATED;
57
58     PRIVATE
59
60          TYPE DESIGNATED (B : BOOLEAN := TRUE; L : LENGTH := 1) IS
61               RECORD
62                    I : INTEGER := 2;
63                    CASE B IS
64                         WHEN TRUE =>
65                              S : STRING (1 .. L) := (1 .. L => 'A');
66                              C : COMPONENT := 2;
67                         WHEN FALSE =>
68                              F : FLOAT := 5.0;
69                    END CASE;
70               END RECORD;
71
72     END PKG_D;
73
74     USE PKG_D;
75
76     PACKAGE PKG_P IS
77
78          TYPE PARENT IS ACCESS DESIGNATED;
79
80          FUNCTION CREATE ( B : BOOLEAN;
81                            L : LENGTH;
82                            I : INTEGER;
83                            S : STRING;
84                            C : COMPONENT;
85                            F : FLOAT;
86                            X : PARENT  -- TO RESOLVE OVERLOADING.
87                          ) RETURN PARENT;
88
89     END PKG_P;
90
91     USE PKG_P;
92
93     TYPE T IS NEW PARENT (IDENT_BOOL (TRUE), IDENT_INT (3));
94
95     SUBTYPE SUBPARENT IS PARENT (TRUE, 3);
96
97     TYPE S IS NEW SUBPARENT;
98
99     X : T := NEW DESIGNATED (TRUE, 3);
100     Y : S := NEW DESIGNATED (TRUE, 3);
101
102     PACKAGE BODY PKG_D IS
103
104          FUNCTION CREATE
105             ( B : BOOLEAN;
106               L : LENGTH;
107               I : INTEGER;
108               S : STRING;
109               C : COMPONENT;
110               F : FLOAT
111             ) RETURN DESIGNATED
112          IS
113          BEGIN
114               CASE B IS
115                    WHEN TRUE =>
116                         RETURN (TRUE, L, I, S, C);
117                    WHEN FALSE =>
118                         RETURN (FALSE, L, I, F);
119               END CASE;
120          END CREATE;
121
122     END PKG_D;
123
124     PACKAGE BODY PKG_P IS
125
126          FUNCTION CREATE
127             ( B : BOOLEAN;
128               L : LENGTH;
129               I : INTEGER;
130               S : STRING;
131               C : COMPONENT;
132               F : FLOAT;
133               X : PARENT
134             ) RETURN PARENT
135          IS
136          BEGIN
137               RETURN NEW DESIGNATED'(CREATE (B, L, I, S, C, F));
138          END CREATE;
139
140     END PKG_P;
141
142BEGIN
143     TEST ("C34007U", "CHECK THAT ALL VALUES OF THE PARENT (BASE) " &
144                      "TYPE ARE PRESENT FOR THE DERIVED (BASE) TYPE " &
145                      "WHEN THE DERIVED TYPE DEFINITION IS " &
146                      "CONSTRAINED.  ALSO CHECK THAT ANY CONSTRAINT " &
147                      "IMPOSED ON THE PARENT SUBTYPE IS ALSO IMPOSED " &
148                      "ON THE DERIVED SUBTYPE.  CHECK FOR DERIVED " &
149                      "ACCESS TYPES WHOSE DESIGNATED TYPE IS A " &
150                      "PRIVATE TYPE WITH DISCRIMINANTS");
151
152     -- CHECK THAT BASE TYPE VALUES NOT IN THE SUBTYPE ARE PRESENT.
153
154     IF CREATE (FALSE, 2, 3, "WW", 5, 6.0, X) . ALL /=
155        CREATE (FALSE, 2, 3, "ZZ", 7, 6.0) OR
156        CREATE (FALSE, 2, 3, "WW", 5, 6.0, Y) . ALL /=
157        CREATE (FALSE, 2, 3, "ZZ", 7, 6.0) THEN
158          FAILED ("CAN'T CREATE BASE TYPE VALUES OUTSIDE THE SUBTYPE");
159     END IF;
160
161     IF CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, X) IN T OR
162        CREATE (FALSE, 2, 3, "ZZ", 5, 6.0, Y) IN S THEN
163          FAILED ("INCORRECT ""IN""");
164     END IF;
165
166     -- CHECK THE DERIVED SUBTYPE CONSTRAINT.
167
168     IF X.B /= TRUE OR X.L /= 3 OR
169        Y.B /= TRUE OR Y.L /= 3 THEN
170          FAILED ("INCORRECT SELECTION OF DISCRIMINANT VALUES");
171     END IF;
172
173     BEGIN
174          X := NEW DESIGNATED'(CREATE (TRUE, 3, 1, "ABC", 4, 1.0));
175          Y := NEW DESIGNATED'(CREATE (TRUE, 3, 1, "ABC", 4, 1.0));
176          IF PARENT (X) = PARENT (Y) OR  -- USE X AND Y.
177             X.ALL /= Y.ALL THEN
178               FAILED ("INCORRECT ALLOCATOR OR CONVERSION TO PARENT");
179          END IF;
180     EXCEPTION
181          WHEN OTHERS =>
182               FAILED ("EXCEPTION RAISED BY OK ASSIGNMENT");
183     END;
184
185     BEGIN
186          X := NEW DESIGNATED'(CREATE (FALSE, 3, 2, "ZZZ", 5, 6.0));
187          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
188                  "X := NEW DESIGNATED'" &
189                  "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
190          IF X = NULL OR ELSE
191             X.ALL = CREATE (FALSE, 3, 2, "ZZZ", 5, 6.0) THEN  -- USE X.
192               COMMENT ("X ALTERED -- " &
193                        "X := NEW DESIGNATED'" &
194                        "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
195          END IF;
196     EXCEPTION
197          WHEN CONSTRAINT_ERROR =>
198               NULL;
199          WHEN OTHERS =>
200               FAILED ("WRONG EXCEPTION RAISED -- " &
201                       "X := NEW DESIGNATED'" &
202                       "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
203     END;
204
205     BEGIN
206          X := NEW DESIGNATED'(CREATE (TRUE, 4, 2, "ZZZZ", 6, 7.0));
207          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
208                  "X := NEW DESIGNATED'" &
209                  "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
210          IF X = NULL OR ELSE
211             X.ALL = CREATE (TRUE, 4, 2, "ZZZZ", 6, 7.0) THEN  -- USE X.
212               COMMENT ("X ALTERED -- " &
213                        "X := NEW DESIGNATED'" &
214                        "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
215          END IF;
216     EXCEPTION
217          WHEN CONSTRAINT_ERROR =>
218               NULL;
219          WHEN OTHERS =>
220               FAILED ("WRONG EXCEPTION RAISED -- " &
221                       "X := NEW DESIGNATED'" &
222                       "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
223     END;
224
225     BEGIN
226          Y := NEW DESIGNATED'(CREATE (FALSE, 3, 2, "ZZZ", 5, 6.0));
227          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
228                  "Y := NEW DESIGNATED'" &
229                  "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
230          IF Y = NULL OR ELSE
231             Y.ALL = CREATE (FALSE, 3, 2, "ZZZ", 5, 6.0) THEN  -- USE Y.
232               COMMENT ("Y ALTERED -- " &
233                        "Y := NEW DESIGNATED'" &
234                        "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
235          END IF;
236     EXCEPTION
237          WHEN CONSTRAINT_ERROR =>
238               NULL;
239          WHEN OTHERS =>
240               FAILED ("WRONG EXCEPTION RAISED -- " &
241                       "Y := NEW DESIGNATED'" &
242                       "(CREATE (FALSE, 3, 2, ""ZZZ"", 5, 6.0))");
243     END;
244
245     BEGIN
246          Y := NEW DESIGNATED'(CREATE (TRUE, 4, 2, "ZZZZ", 6, 7.0));
247          FAILED ("CONSTRAINT_ERROR NOT RAISED -- " &
248                  "Y := NEW DESIGNATED'" &
249                  "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
250          IF Y = NULL OR ELSE
251             Y.ALL = CREATE (TRUE, 4, 2, "ZZZZ", 6, 7.0) THEN  -- USE Y.
252               COMMENT ("Y ALTERED -- " &
253                        "Y := NEW DESIGNATED'" &
254                        "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
255          END IF;
256     EXCEPTION
257          WHEN CONSTRAINT_ERROR =>
258               NULL;
259          WHEN OTHERS =>
260               FAILED ("WRONG EXCEPTION RAISED -- " &
261                       "Y := NEW DESIGNATED'" &
262                       "(CREATE (TRUE, 4, 2, ""ZZZZ"", 6, 7.0))");
263     END;
264
265     RESULT;
266END C34007U;
267