| -- C38002B.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. |
| --* |
| -- OBJECTIVE: |
| -- CHECK THAT AN UNCONSTRAINED ARRAY TYPE OR A RECORD WITHOUT |
| -- DEFAULT DISCRIMINANTS CAN BE USED IN AN ACCESS_TYPE_DEFINITION |
| -- WITHOUT AN INDEX OR DISCRIMINANT CONSTRAINT. |
| -- |
| -- CHECK THAT (NON-STATIC) INDEX OR DISCRIMINANT CONSTRAINTS CAN |
| -- SUBSEQUENTLY BE IMPOSED WHEN THE TYPE IS USED IN AN OBJECT |
| -- DECLARATION, ARRAY COMPONENT DECLARATION, RECORD COMPONENT |
| -- DECLARATION, ACCESS TYPE DECLARATION, PARAMETER DECLARATION, |
| -- ALLOCATOR, DERIVED TYPE DEFINITION, PRIVATE TYPE, OR AS THE |
| -- RETURN TYPE IN A FUNCTION DECLARATION. |
| -- |
| -- CHECK FOR GENERIC FORMAL ACCESS TYPES. |
| |
| -- HISTORY: |
| -- AH 09/02/86 CREATED ORIGINAL TEST. |
| -- DHH 08/22/88 REVISED HEADER, ADDED 'PRIVATE TYPE' TO COMMENTS |
| -- AND CORRECTED INDENTATION. |
| |
| WITH REPORT; USE REPORT; |
| PROCEDURE C38002B IS |
| |
| C3 : CONSTANT INTEGER := IDENT_INT(3); |
| |
| TYPE UNCON_ARR IS ARRAY (INTEGER RANGE <>) OF INTEGER; |
| TYPE REC (DISC : INTEGER) IS |
| RECORD |
| NULL; |
| END RECORD; |
| |
| TYPE P_ARR_NAME IS ACCESS UNCON_ARR; |
| TYPE P_REC_NAME IS ACCESS REC; |
| |
| GENERIC |
| TYPE ACC_REC IS ACCESS REC; |
| TYPE ACC_ARR IS ACCESS UNCON_ARR; |
| PACKAGE P IS |
| OBJ : ACC_REC(C3); |
| |
| TYPE ARR2 IS ARRAY (1..10) OF ACC_REC(C3); |
| |
| TYPE REC1 IS |
| RECORD |
| COMP1 : ACC_REC(C3); |
| END RECORD; |
| |
| TYPE REC2 IS |
| RECORD |
| COMP2 : ACC_ARR(1..C3); |
| END RECORD; |
| |
| SUBTYPE ACC_REC_3 IS ACC_REC(C3); |
| R : ACC_REC; |
| |
| FUNCTION F (PARM : ACC_REC_3) RETURN ACC_REC_3; |
| |
| TYPE ACC1 IS PRIVATE; |
| TYPE ACC2 IS PRIVATE; |
| TYPE DER1 IS PRIVATE; |
| TYPE DER2 IS PRIVATE; |
| |
| PRIVATE |
| |
| TYPE ACC1 IS ACCESS ACC_REC(C3); |
| TYPE ACC2 IS ACCESS ACC_ARR(1..C3); |
| TYPE DER1 IS NEW ACC_REC(C3); |
| TYPE DER2 IS NEW ACC_ARR(1..C3); |
| END P; |
| |
| PACKAGE BODY P IS |
| FUNCTION F (PARM : ACC_REC_3) RETURN ACC_REC_3 IS |
| BEGIN |
| RETURN PARM; |
| END; |
| END P; |
| |
| PACKAGE NP IS NEW P (ACC_REC => P_REC_NAME, ACC_ARR => P_ARR_NAME); |
| |
| USE NP; |
| BEGIN |
| TEST ("C38002B", "NON-STATIC CONSTRAINTS CAN BE IMPOSED " & |
| "ON ACCESS TYPES ACCESSING PREVIOUSLY UNCONSTRAINED " & |
| "ARRAY OR RECORD TYPES"); |
| |
| R := NEW REC(DISC => 3); |
| R := F(R); |
| R := NEW REC(DISC => 4); |
| R := F(R); |
| FAILED ("INCOMPATIBLE CONSTRAINT ON ACCESS VALUE ACCEPTED " & |
| "BY GENERIC FUNCTION"); |
| EXCEPTION |
| WHEN CONSTRAINT_ERROR => |
| IF R = NULL OR ELSE R.DISC /= 4 THEN |
| FAILED (" ERROR IN EVALUATION/ASSIGNMENT OF " & |
| "GENERIC ACCESS VALUE"); |
| END IF; |
| |
| RESULT; |
| END C38002B; |