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-- CA13A01.A
--
--                             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 subunits declared in non-generic child units of a public 
--      parent have the same visibility into its parent, its siblings 
--      (public and private), and packages on which its parent depends 
--      as is available at the point of their declaration.
--
-- TEST DESCRIPTION:
--      Declare an check system procedure as a subunit in a private child 
--      package of the basic operation package (FA13A00.A).  This procedure 
--      has visibility into its parent ancestor and its private sibling.
--
--      Declare an emergency procedure as a subunit in a public child package
--      of the basic operation package (FA13A00.A).  This procedure has 
--      visibility into its parent ancestor and its private sibling. 
--
--      Declare an express procedure as a subunit in a public child subprogram
--      of the basic operation package (FA13A00.A).  This procedure has 
--      visibility into its parent ancestor and its public sibling. 
--
--      In the main program, "with"s the child package and subprogram.  Check 
--      that subunits perform as expected.  
--
-- TEST FILES:
--      The following files comprise this test:
--
--         FA13A00.A
--         CA13A01.A
--
--
-- CHANGE HISTORY:
--      06 Dec 94   SAIC    ACVC 2.0
--
--!

-- Private child package of an elevator application.  This package
-- provides maintenance operations.

private package FA13A00_1.CA13A01_4 is    -- Maintenance operation

   One_Floor : Floor_No := 1;             -- Type declared in parent.

   procedure Check_System;

   -- other type definitions and procedure declarations in real application.

end FA13A00_1.CA13A01_4;

     --==================================================================--

-- Context clauses required for visibility needed by separate subunit.

with FA13A00_0;                           -- Building Manager

with FA13A00_1.FA13A00_2;                 -- Floor Calculation (private)
                                         
with FA13A00_1.FA13A00_3;                 -- Move Elevator

use  FA13A00_0;                           

package body FA13A00_1.CA13A01_4 is              

   procedure Check_System is separate;

end FA13A00_1.CA13A01_4;

     --==================================================================--

separate (FA13A00_1.CA13A01_4)

-- Subunit Check_System declared in Maintenance Operation.

procedure Check_System is
begin
   -- See if regular power is on.

   if Power /= V120 then                  -- Reference package with'ed by
      TC_Operation := false;              -- the subunit parent's body.
   end if;

   -- Test elevator function.

   FA13A00_1.FA13A00_3.Move_Elevator      -- Reference public sibling of
     (Penthouse, Call_Waiting);           -- the subunit parent's body.

   if not Call_Waiting (Penthouse) then   -- Reference private part of the
      TC_Operation := false;              -- parent of the subunit package's 
                                          -- body.
   end if;

   FA13A00_1.FA13A00_2.Down (One_Floor);  -- Reference private sibling of
                                          -- the subunit parent's body.

   if Current_Floor /= Floor'pred (Penthouse) then 
      TC_Operation := false;              -- Reference type declared in the
   end if;                                -- parent of the subunit parent's
                                          -- body.

end Check_System;

     --==================================================================--

-- Public child package of an elevator application.  This package provides
-- an emergency operation.

package FA13A00_1.CA13A01_5 is            -- Emergency Operation

   -- Other type definitions in real application.

   procedure Emergency;

private
   type Bell_Type is (Inactive, Active);

end FA13A00_1.CA13A01_5;

     --==================================================================--

-- Context clauses required for visibility needed by separate subunit.

with FA13A00_0;                           -- Building Manager

with FA13A00_1.FA13A00_3;                 -- Move Elevator

with FA13A00_1.CA13A01_4;                 -- Maintenance Operation (private)

use  FA13A00_0;

package body FA13A00_1.CA13A01_5 is              

   procedure Emergency is separate;

end FA13A00_1.CA13A01_5;

     --==================================================================--

separate (FA13A00_1.CA13A01_5)

-- Subunit Emergency declared in Maintenance Operation.

procedure Emergency is
   Bell : Bell_Type;                      -- Reference type declared in the 
                                          -- subunit parent's body.

begin
   -- Calls maintenance operation.

   FA13A00_1.CA13A01_4.Check_System;      -- Reference private sibling of the
                                          -- subunit parent 's body.

   -- Clear all calls to the elevator.

   Clear_Calls (Call_Waiting);            -- Reference subprogram declared
                                          -- in the parent of the subunit
                                          -- parent's body.
   for I in Floor loop                    
      if Call_Waiting (I) then            -- Reference private part of the
        TC_Operation := false;            -- parent of the subunit parent's
      end if;                             -- body.
   end loop;

   -- Move elevator to the basement.

   FA13A00_1.FA13A00_3.Move_Elevator      -- Reference public sibling of the
     (Basement, Call_Waiting);            -- subunit parent's body.

   if Current_Floor /= Basement then      -- Reference type declared in the
      TC_Operation := false;              -- parent of the subunit parent's
   end if;                                -- body.

   -- Shut off power.

   Power := Off;                          -- Reference package with'ed by
                                          -- the subunit parent's body.

   -- Activate bell.

   Bell := Active;                        -- Reference type declared in the 
                                          -- subunit parent's body. 

end Emergency;

     --==================================================================--

-- Public child subprogram of an elevator application.  This subprogram 
-- provides an express operation.

procedure FA13A00_1.CA13A01_6;

     --==================================================================--

-- Context clauses required for visibility needed by separate subunit.

with FA13A00_0;                           -- Building Manager

with FA13A00_1.FA13A00_2;                 -- Floor Calculation (private)

with FA13A00_1.FA13A00_3;                 -- Move Elevator

use  FA13A00_0;

procedure FA13A00_1.CA13A01_6 is          -- Express Operation

   -- Other type definitions in real application.

   procedure GoTo_Penthouse is separate;

begin
   GoTo_Penthouse;

end FA13A00_1.CA13A01_6;

     --==================================================================--

separate (FA13A00_1.CA13A01_6)

-- Subunit GoTo_Penthouse declared in Express Operation.

procedure GoTo_Penthouse is
begin
   -- Go faster.

   Power := V240;                         -- Reference package with'ed by
                                          -- the subunit parent's body. 

   -- Call elevator.

   Call (Penthouse, Call_Waiting);        -- Reference subprogram declared in
                                          -- the parent of the subunit 
                                          -- parent's body.

   if not Call_Waiting (Penthouse) then   -- Reference private part of the
      TC_Operation := false;              -- parent of the subunit parent's
   end if;                                -- body.

   -- Move elevator to Penthouse.

   FA13A00_1.FA13A00_3.Move_Elevator      -- Reference public sibling of the
     (Penthouse, Call_Waiting);           -- subunit parent's body.

   if Current_Floor /= Penthouse then     -- Reference type declared in the
      TC_Operation := false;              -- parent of the subunit parent's
   end if;                                -- body.

   -- Return slowly

   while Current_Floor /= Floor1 loop     -- Reference type, subprogram 
      FA13A00_1.FA13A00_2.Down (1);       -- declared in the parent of the
                                          -- subunit parent's body.
   end loop;

   if Current_Floor /= Floor1 then        -- Reference type declared in
      TC_Operation := false;              -- the parent of the subunit
   end if;                                -- parent's body.

   -- Back to normal.
                                          
   Power := V120;                         -- Reference package with'ed by
                                          -- the subunit parent's body.

end GoTo_Penthouse;

     --==================================================================--

with FA13A00_1.CA13A01_5;                 -- Emergency Operation
                                          -- implicitly with Basic Elevator
                                          -- Operations

with FA13A00_1.CA13A01_6;                 -- Express Operation

with Report;

procedure CA13A01 is

begin

   Report.Test ("CA13A01", "Check that subunits declared in non-generic " &
                "child units of a public parent have the same visibility " &
                "into its parent, its parent's siblings, and packages on " &
                "which its parent depends");

   -- Go to Penthouse.

   FA13A00_1.CA13A01_6;

   -- Call emergency operation.

   FA13A00_1.CA13A01_5.Emergency;

   if not FA13A00_1.TC_Operation then
      Report.Failed ("Incorrect elevator operation");
   end if;

   Report.Result;

end CA13A01;

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