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-- C761005.A

--

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--     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 deriving abstract types from the types in Ada.Finalization

--      does not negatively impact the implicit operations.

--      Check that an object of a controlled type is finalized when the

--      enclosing master is complete.

--      Check that finalization occurs in the case where the master is

--      left by a transfer of control.

--      Check this for controlled types where the derived type has a

--      discriminant.

--      Check this for cases where the type is defined as private,

--      and the full type is derived from the types in Ada.Finalization.

--

--      Check that finalization of controlled objects is

--      performed in the correct order.  In particular, check that if

--      multiple objects of controlled types are declared immediately

--      within the same declarative part then type are finalized in the

--      reverse order of their creation.

--

-- TEST DESCRIPTION:

--      This test checks these conditions for subprograms and

--      block statements; both variables and constants of controlled

--      types; cases of a controlled component of a record type, as

--      well as an array with controlled components.

--

--      The base controlled types used for the test are defined

--      with a character discriminant.  The initialize procedure for

--      the types will record the order of creation in a globally

--      accessible array, the finalize procedure for the types will call

--      TCTouch with that tag character.  The test can then check that

--      the order of finalization is indeed the reverse of the order of

--      creation (assuming that the implementation calls Initialize in

--      the order that the objects are created).

--

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--      10 Oct 95   SAIC    Fixed bugs for ACVC 2.0.1

--

--!

package C761005_Support is

  function Pick_Char return Character;

  procedure Validate(Initcount: Natural; Testnumber:Natural);

  Inits_Order  : String(1..255);

  Inits_Called : Natural := 0;

end C761005_Support;

with Report;

with TCTouch;

package body C761005_Support is

  type Pick_Rotation is mod 52;

  type Pick_String is array(Pick_Rotation) of Character;

  From : constant Pick_String  := "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

                                & "abcdefghijklmnopqrstuvwxyz";

  Recent_Pick : Pick_Rotation := Pick_Rotation'Last;

  function Pick_Char return Character is

  begin

    Recent_Pick := Recent_Pick +1;

    return From(Recent_Pick);

  end Pick_Char;

  function Invert(S:String) return String is

    T: String(1..S'Length);

    TI: Positive := 1;

  begin

    for SI in reverse S'Range loop

      T(TI) := S(SI);

      TI := TI +1;

    end loop;

    return T;

  end Invert;

  procedure Validate(Initcount: Natural; Testnumber:Natural) is

    Number : constant String := Natural'Image(Testnumber);

  begin

    if Inits_Called /= Initcount then

      Report.Failed("Wrong number of inits, Subtest " & Number);

    else

      TCTouch.Validate(

        Invert(Inits_Order(1..Inits_Called)),

               "Subtest " & Number, True);

    end if;

    Inits_Called := 0;

  end Validate;

end C761005_Support;

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

with Ada.Finalization;

package C761005_0 is

  type Final_Root(Tag: Character) is private;

  type Ltd_Final_Root(Tag: Character) is limited private;

  Inits_Order  : String(1..255);

  Inits_Called : Natural := 0;

private

  type Final_Root(Tag: Character) is new Ada.Finalization.Controlled

    with null record;

  procedure Initialize( It: in out Final_Root );

  procedure Finalize  ( It: in out Final_Root );

  type Ltd_Final_Root(Tag: Character) is new

Ada.Finalization.Limited_Controlled

    with null record;

  procedure Initialize( It: in out Ltd_Final_Root );

  procedure Finalize  ( It: in out Ltd_Final_Root );

end C761005_0;

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

with Ada.Finalization;

package C761005_1 is

  type Final_Abstract is abstract tagged private;

  type Ltd_Final_Abstract_Child is abstract tagged limited private;

  Inits_Order  : String(1..255);

  Inits_Called : Natural := 0;

private

  type Final_Abstract is abstract new Ada.Finalization.Controlled with record

    Tag: Character;

  end record;

  procedure Initialize( It: in out Final_Abstract );

  procedure Finalize  ( It: in out Final_Abstract );

  type Ltd_Final_Abstract_Child is

       abstract new Ada.Finalization.Limited_Controlled with record

    Tag: Character;

  end record;

  procedure Initialize( It: in out Ltd_Final_Abstract_Child );

  procedure Finalize  ( It: in out Ltd_Final_Abstract_Child );

end C761005_1;

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

with C761005_1;

package C761005_2 is

  type Final_Child is new C761005_1.Final_Abstract with null record;

  type Ltd_Final_Child is

       new C761005_1.Ltd_Final_Abstract_Child with null record;

end C761005_2;

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

with Report;

with TCTouch;

with C761005_Support;

package body C761005_0 is

  package Sup renames C761005_Support;

  procedure Initialize( It: in out Final_Root ) is

  begin

    Sup.Inits_Called := Sup.Inits_Called +1;

    Sup.Inits_Order(Sup.Inits_Called) := It.Tag;

  end Initialize;

  procedure Finalize( It: in out Final_Root ) is

  begin

    TCTouch.Touch(It.Tag);

  end Finalize;

  procedure Initialize( It: in out Ltd_Final_Root ) is

  begin

    Sup.Inits_Called := Sup.Inits_Called +1;

    Sup.Inits_Order(Sup.Inits_Called) := It.Tag;

  end Initialize;

  procedure Finalize( It: in out Ltd_Final_Root ) is

  begin

    TCTouch.Touch(It.Tag);

  end Finalize;

end C761005_0;

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

with Report;

with TCTouch;

with C761005_Support;

package body C761005_1 is

  package Sup renames C761005_Support;

  procedure Initialize( It: in out Final_Abstract ) is

  begin

    Sup.Inits_Called := Sup.Inits_Called +1;

    It.Tag := Sup.Pick_Char;

    Sup.Inits_Order(Sup.Inits_Called) := It.Tag;

  end Initialize;

  procedure Finalize( It: in out Final_Abstract ) is

  begin

    TCTouch.Touch(It.Tag);

  end Finalize;

  procedure Initialize( It: in out Ltd_Final_Abstract_Child ) is

  begin

    Sup.Inits_Called := Sup.Inits_Called +1;

    It.Tag := Sup.Pick_Char;

    Sup.Inits_Order(Sup.Inits_Called) := It.Tag;

  end Initialize;

  procedure Finalize( It: in out Ltd_Final_Abstract_Child ) is

  begin

    TCTouch.Touch(It.Tag);

  end Finalize;

end C761005_1;

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

with Report;

with TCTouch;

with C761005_0;

with C761005_2;

with C761005_Support;

procedure C761005 is

  package Sup renames C761005_Support;

  Subtest_1_Inits_Expected : constant := 4;

  procedure Subtest_1 is

    Item_1 : C761005_0.Final_Root(Sup.Pick_Char);

    Item_2, Item_3 : C761005_0.Final_Root(Sup.Pick_Char);

    Item_4 : C761005_0.Ltd_Final_Root(Sup.Pick_Char);

  begin

    -- check that nothing has happened yet!

    TCTouch.Validate("","Subtest 1 body");

  end Subtest_1;

  -- These declarations should cause calls to initialize and

  -- finalize.  The expected operations are the subprograms associated

  -- with the abstract types.

  Subtest_2_Inits_Expected : constant := 4;

  procedure Subtest_2 is

    Item_1 : C761005_2.Final_Child;

    Item_2, Item_3 : C761005_2.Final_Child;

    Item_4 : C761005_2.Ltd_Final_Child;

  begin

    -- check that nothing has happened yet!

    TCTouch.Validate("","Subtest 2 body");

  end Subtest_2;

begin  -- Main test procedure.

  Report.Test ("C761005", "Check that an object of a controlled type "

                        & "is finalized when the enclosing master is "

                        & "complete, left by a transfer of control, "

                        & "and performed in the correct order" );

  Subtest_1;

  Sup.Validate(Subtest_1_Inits_Expected,1);

  Subtest_2;

  Sup.Validate(Subtest_2_Inits_Expected,2);

  Report.Result;

end C761005;