| -- C37213B.ADA |
| |
| -- 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. |
| --* |
| -- CHECK THAT IF |
| -- A DISCRIMINANT CONSTRAINT |
| -- DEPENDS ON A DISCRIMINANT, THE NON-DISCRIMINANT EXPRESSIONS IN THE |
| -- CONSTRAINT ARE EVALUATED WHEN THE COMPONENT SUBTYPE DEFINITION IS |
| -- ELABORATED, BUT THE VALUES ARE CHECKED WHEN THE RECORD TYPE IS: |
| -- |
| -- CASE B: USED WITHOUT A CONSTRAINT ONLY IN AN ALLOCATOR OR OBJECT |
| -- DECLARATION. |
| |
| -- JBG 10/17/86 |
| |
| WITH REPORT; USE REPORT; |
| PROCEDURE C37213B IS |
| |
| SUBTYPE SM IS INTEGER RANGE 1..10; |
| |
| TYPE REC (D1, D2 : SM) IS |
| RECORD NULL; END RECORD; |
| |
| F1_CONS : INTEGER := 2; |
| |
| FUNCTION CHK ( |
| CONS : INTEGER; |
| VALUE : INTEGER; |
| MESSAGE : STRING) RETURN BOOLEAN IS |
| BEGIN |
| IF CONS /= VALUE THEN |
| FAILED (MESSAGE & ": CONS IS " & |
| INTEGER'IMAGE(CONS)); |
| END IF; |
| RETURN TRUE; |
| END CHK; |
| |
| FUNCTION F1 RETURN INTEGER IS |
| BEGIN |
| F1_CONS := F1_CONS - IDENT_INT(1); |
| RETURN F1_CONS; |
| END F1; |
| |
| BEGIN |
| TEST ("C37213B", "CHECK EVALUATION OF DISCRIMINANT EXPRESSIONS " & |
| "WHEN CONSTRAINT DEPENDS ON DISCRIMINANT, " & |
| "AND DISCRIMINANTS HAVE DEFAULTS"); |
| |
| -- CASE B |
| |
| DECLARE |
| TYPE CONS (D3 : INTEGER := 1) IS |
| RECORD |
| C1 : REC (D3, F1); -- F1 EVALUATED |
| END RECORD; |
| CHK1 : BOOLEAN := CHK (F1_CONS, 1, "F1 NOT EVALUATED"); |
| X : CONS; -- F1 NOT EVALUATED AGAIN |
| Y : CONS; -- F1 NOT EVALUATED AGAIN |
| CHK2 : BOOLEAN := CHK (F1_CONS, 1, "F1 EVALUATED"); |
| BEGIN |
| IF X /= (1, (1, 1)) OR Y /= (1, (1, 1)) THEN |
| FAILED ("DISCRIMINANT VALUES NOT CORRECT"); |
| END IF; |
| END; |
| |
| F1_CONS := 12; |
| |
| DECLARE |
| TYPE CONS (D3 : INTEGER := 1) IS |
| RECORD |
| C1 : REC(D3, F1); |
| END RECORD; |
| BEGIN |
| BEGIN |
| DECLARE |
| X : CONS; |
| BEGIN |
| FAILED ("DISCRIMINANT CHECK NOT PERFORMED - 1"); |
| IF X /= (1, (1, 1)) THEN |
| COMMENT ("SHOULDN'T GET HERE"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION - 1"); |
| END; |
| |
| BEGIN |
| DECLARE |
| TYPE ACC_CONS IS ACCESS CONS; |
| X : ACC_CONS; |
| BEGIN |
| X := NEW CONS; |
| FAILED ("DISCRIMINANT CHECK NOT PERFORMED - 2"); |
| BEGIN |
| IF X.ALL /= (1, (1, 1)) THEN |
| COMMENT ("IRRELEVANT"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION RAISED - 2"); |
| END; |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECKED TOO SOON - 2"); |
| END; |
| |
| BEGIN |
| DECLARE |
| SUBTYPE SCONS IS CONS; |
| BEGIN |
| DECLARE |
| X : SCONS; |
| BEGIN |
| FAILED ("DISCRIMINANT CHECK NOT " & |
| "PERFORMED - 3"); |
| IF X /= (1, (1, 1)) THEN |
| COMMENT ("IRRELEVANT"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION RAISED - 3"); |
| END; |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECKED TOO SOON - 3"); |
| END; |
| |
| BEGIN |
| DECLARE |
| TYPE ARR IS ARRAY (1..5) OF CONS; |
| BEGIN |
| DECLARE |
| X : ARR; |
| BEGIN |
| FAILED ("DISCRIMINANT CHECK NOT " & |
| "PERFORMED - 4"); |
| IF X /= (1..5 => (1, (1, 1))) THEN |
| COMMENT ("IRRELEVANT"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION RAISED - 4"); |
| END; |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECKED TOO SOON - 4"); |
| END; |
| |
| BEGIN |
| DECLARE |
| TYPE NREC IS |
| RECORD |
| C1 : CONS; |
| END RECORD; |
| BEGIN |
| DECLARE |
| X : NREC; |
| BEGIN |
| FAILED ("DISCRIMINANT CHECK NOT " & |
| "PERFORMED - 5"); |
| IF X /= (C1 => (1, (1, 1))) THEN |
| COMMENT ("IRRELEVANT"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION RAISED - 5"); |
| END; |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECKED TOO SOON - 5"); |
| END; |
| |
| BEGIN |
| DECLARE |
| TYPE DREC IS NEW CONS; |
| BEGIN |
| DECLARE |
| X : DREC; |
| BEGIN |
| FAILED ("DISCRIMINANT CHECK NOT " & |
| "PERFORMED - 6"); |
| IF X /= (1, (1, 1)) THEN |
| COMMENT ("IRRELEVANT"); |
| END IF; |
| END; |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| NULL; |
| WHEN OTHERS => |
| FAILED ("UNEXPECTED EXCEPTION RAISED - 6"); |
| END; |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECKED TOO SOON - 6"); |
| END; |
| |
| END; |
| |
| RESULT; |
| |
| EXCEPTION |
| WHEN OTHERS => |
| FAILED ("CONSTRAINT CHECK DONE TOO EARLY"); |
| RESULT; |
| |
| END C37213B; |