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+-- C84002A.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:
+
+-- A) IF A USE CLAUSE NAMES AN ENCLOSING PACKAGE, THE USE CLAUSE
+-- HAS NO EFFECT.
+
+-- B) IF A DECLARATION IS DIRECTLY VISIBLE PRIOR TO THE OCCURRENCE
+-- OF A USE CLAUSE, AND IS NOT IN THE SET OF POTENTIALLY
+-- VISIBLE DECLARATIONS, IT REMAINS DIRECTLY VISIBLE AFTER THE
+-- USE CLAUSE.
+
+-- C) IF A HOMOGRAPH FOR A POTENTIALLY VISIBLE SUBPROGRAM OR
+-- OBJECT IS DECLARED AFTER A USE CLAUSE, THE POTENTIALLY
+-- VISIBLE ENTITY IS NO LONGER VISIBLE.
+
+-- EG 02/16/84
+
+WITH REPORT;
+
+PROCEDURE C84002A IS
+
+ USE REPORT;
+
+BEGIN
+
+ TEST("C84002A","CHECK THAT DECLARATIONS DIRECTLY VISIBLE PRIOR " &
+ "TO THE USE CLAUSE REMAIN VISIBLE AFTERWARDS");
+
+ BEGIN
+
+ COMMENT ("CASE A : CHECK THAT IF A USE CLAUSE NAMES AN " &
+ "ENCLOSING PACKAGE, THE USE CLAUSE HAS NO EFFECT");
+
+CASE_A : DECLARE
+
+ PACKAGE P1 IS
+ X : FLOAT := 1.5;
+ END P1;
+ PACKAGE P2 IS
+ X : INTEGER := 15;
+
+ USE P1;
+ USE P2;
+
+ A : INTEGER := X;
+ END P2;
+ PACKAGE BODY P1 IS
+ BEGIN
+ NULL;
+ END P1;
+ PACKAGE BODY P2 IS
+ BEGIN
+ IF X /= IDENT_INT(15) OR X /= P2.X OR
+ A /= P2.X THEN
+ FAILED ("CASE A : USE CLAUSE HAS AN EFFECT");
+ END IF;
+ END P2;
+
+ BEGIN
+
+ NULL;
+
+ END CASE_A;
+
+ COMMENT ("CASE B : CHECK THAT IF A DECLARATION IS DIRECTLY " &
+ "VISIBLE PRIOR TO THE OCCURRENCE OF A USE CLAUSE, " &
+ "AND IS NOT IN THE SET OF POTENTIALLY VISIBLE " &
+ "DECLARATIONS, IT REMAINS DIRECTLY VISIBLE");
+
+CASE_B : BEGIN
+
+ CASE_B1 : DECLARE
+
+ PACKAGE P1 IS
+ Y : FLOAT := 1.5;
+ END P1;
+ PACKAGE P2 IS
+ X : INTEGER := 15;
+
+ USE P1;
+
+ A : INTEGER := X;
+ END P2;
+
+ PACKAGE BODY P1 IS
+ BEGIN
+ NULL;
+ END P1;
+ PACKAGE BODY P2 IS
+ BEGIN
+ IF X /= IDENT_INT(15) OR X /= P2.X OR
+ A /= P2.X THEN
+ FAILED ("CASE B1 : DECLARATION NO " &
+ "LONGER DIRECTLY VISIBLE");
+ END IF;
+ END P2;
+
+ BEGIN
+
+ NULL;
+
+ END CASE_B1;
+
+ CASE_B2 : DECLARE
+
+ PROCEDURE PROC1 (X : STRING) IS
+ BEGIN
+ NULL;
+ END PROC1;
+
+ PACKAGE P1 IS
+ PROCEDURE PROC1 (X : STRING);
+ END P1;
+ PACKAGE BODY P1 IS
+ PROCEDURE PROC1 (X : STRING) IS
+ BEGIN
+ FAILED ("CASE B2 : WRONG PROCEDURE " &
+ "DIRECTLY VISIBLE");
+ END PROC1;
+ END P1;
+
+ USE P1;
+
+ BEGIN
+
+ PROC1 ("ABC");
+
+ END CASE_B2;
+
+ CASE_B3 : DECLARE
+
+ PROCEDURE PROC1 (X : STRING) IS
+ BEGIN
+ NULL;
+ END PROC1;
+
+ PACKAGE P1 IS
+ PROCEDURE PROC1 (Y : STRING);
+ END P1;
+ PACKAGE BODY P1 IS
+ PROCEDURE PROC1 (Y : STRING) IS
+ BEGIN
+ FAILED ("CASE B3 : WRONG PROCEDURE " &
+ "DIRECTLY VISIBLE");
+ END PROC1;
+ END P1;
+
+ USE P1;
+
+ BEGIN
+
+ PROC1 ("ABC");
+
+ END CASE_B3;
+
+ END CASE_B;
+
+ COMMENT ("CASE C : IF A HOMOGRAPH FOR A POTENTIALLY " &
+ "VISIBLE SUBPROGRAM OR OBJECT IS DECLARED AFTER " &
+ "A USE CLAUSE, THE POTENTIALLY VISIBLE ENTITY " &
+ "IS NO LONGER VISIBLE");
+
+CASE_C : BEGIN
+
+ CASE_C1 : DECLARE
+
+ PACKAGE P1 IS
+ PROCEDURE PROC1 (X : FLOAT);
+ END P1;
+
+ USE P1;
+
+ PACKAGE BODY P1 IS
+ PROCEDURE PROC1 (X : FLOAT) IS
+ BEGIN
+ IF X = -1.5 THEN
+ FAILED ("CASE C1 : WRONG PROCEDURE" &
+ " CALLED (A)");
+ ELSIF X /= 1.5 THEN
+ FAILED ("CASE C1 : WRONG VALUE " &
+ "PASSED (A)");
+ END IF;
+ END PROC1;
+ BEGIN
+ NULL;
+ END P1;
+
+ PROCEDURE PROC2 IS
+ BEGIN
+ PROC1 (1.5);
+ END PROC2;
+
+ PROCEDURE PROC1 (X : FLOAT) IS
+ BEGIN
+ IF X = 1.5 THEN
+ FAILED ("CASE C1 : WRONG PROCEDURE" &
+ " CALLED (B)");
+ ELSIF X /= -1.5 THEN
+ FAILED ("CASE C1 : WRONG VALUE " &
+ "PASSED (B)");
+ END IF;
+ END PROC1;
+
+ BEGIN
+
+ PROC2;
+ PROC1 (-1.5);
+
+ END CASE_C1;
+
+ CASE_C2 : DECLARE
+
+ PACKAGE P1 IS
+ X : INTEGER := 15;
+ END P1;
+
+ USE P1;
+
+ A : INTEGER := X;
+
+ X : BOOLEAN := TRUE;
+
+ B : BOOLEAN := X;
+
+ BEGIN
+
+ IF A /= IDENT_INT(15) THEN
+ FAILED ("CASE C2 : VARIABLE A DOES NOT " &
+ "CONTAIN THE CORRECT VALUE");
+ END IF;
+ IF B /= IDENT_BOOL(TRUE) THEN
+ FAILED ("CASE C2 : VARIABLE B DOES NOT " &
+ "CONTAIN THE CORRECT VALUE");
+ END IF;
+
+ END CASE_C2;
+
+ END CASE_C;
+
+ END;
+
+ RESULT;
+
+END C84002A;