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-- LA140251.AM

--

--                             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 a compilation unit may not depend semantically

--      on two different versions of the same compilation unit.

--      Check the case where a generic instantiation depends on

--      a non-generic package that is changed.

--

-- TEST DESCRIPTION:

--      This test compiles a package, a generic package, a

--      generic instantiation that withs both of the first two

--      packages, and a main procedure that withs the instantiated

--      generic package.  Then, a new version of the first

--      package is compiled (in a separate file, simulating

--      editing and modification to the unit).  Unless automatic

--      recompilation is supported, this test should fail to link.

--      Otherwise, the test should recompile and link the correct

--      version of the withed package and report "PASSED" at

--      execution time.

--

-- SPECIAL REQUIREMENTS:

--      To build this test:

--         1) Compile the file LA140250 (and include the results in the

--            program library).

--         2) Compile the file LA140251 (and include the results in the

--            program library).

--         3) Compile the file LA140252 (and include the results in the

--            program library).

--         4) Attempt to build an executable image.

--         5) If an executable image results, run it.

--

-- TEST FILES:

--      This test consists of the following files:

--         LA140250.A

--      -> LA140251.AM

--         LA140252.A

--

-- PASS/FAIL CRITERIA:

--      The test passes if a link time error message reports that

--      LA14025 is missing or obsolete, or that LA14025_2 is

--      missing or obsolete (optional) and no executable image

--      results.  The test passes if an executable image is produced

--      and reports "PASSED" (in case the implementation supports

--      automatic recompilation).

--

--

-- CHANGE HISTORY:

--     01 MAY 95   ACVC 1.12   LA5008V baseline version

--     06 JUL 95   SAIC        Initial version

--     08 NOV 96   SAIC        Unit naming correction

--     07 DEC 96   SAIC        Moved LA14025_0 to a separate file. Added

--                             pragma Elaborate to context clause of

--                             LA14025_2.

--

--!

with LA14025_0;

generic

     type your_addition is (<>);

package LA14025_1 is          --extensions, utilities

     type extended_record is new LA14025_0.data_rec with record

          new_data : your_addition;

     end record;

     procedure stuff (param : your_addition);

     function fetch (param : LA14025_0.byte) return LA14025_0.byte;

private

     obj : extended_record;

end LA14025_1;

---------------------------------------------

package body LA14025_1 is

     procedure stuff (param : your_addition) is

     begin

          obj.new_data := param;

     end stuff;

     function fetch (param : LA14025_0.byte) return LA14025_0.byte is

     begin

          return (param + obj.val);

     end fetch;

end LA14025_1;

---------------------------------------------

with LA14025_0;

with LA14025_1;

pragma Elaborate (LA14025_1);

package LA14025_2 is new LA14025_1 (LA14025_0.byte);

---------------------------------------------

with Report; use Report;

with LA14025_2;

with LA14025_0;

procedure LA140251 is

     TC_val : LA14025_0.byte := 0;

     Temp_var : LA14025_2.extended_record;

begin

     Test ("LA14025", "Check that a compilation unit may not " &

                      "depend semantically on two different " &

                      "versions of the same compilation unit.  " &

                      "Check the case where a generic " &

                      "instantiation depends on a non-generic " &

                      "package that is changed");

     LA14025_2.stuff(10);

     TC_val := LA14025_2.fetch (Temp_var.val);

     if TC_val = 256 then

          Failed ("Old version of package used");

     elsif TC_val /= 128 then

          Failed ("Incorrect value returned");

     end if;

     Result;

end LA140251;