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-- CDE0001.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 the following names can be used in the declaration of a

--      generic formal parameter (object, array type, or access type) without

--      causing freezing of the named type:

--        (1) The name of a private type,

--        (2) A name that denotes a subtype of a private type, and

--        (3) A name that denotes a composite type with a subcomponent of a

--           private type (or subtype).

--      Check for untagged and tagged types.

--

-- TEST DESCRIPTION:

--      This transition test defines private and limited private types,

--      subtypes of these private types, records and arrays of both types and

--      subtypes, a tagged type and a private extension.

--      This test creates examples where the above types are used in the

--      definition of several generic formal type parameters (object, array

--      type, or access type) in both visible and private parts.  These

--      visible and private generic packages are instantiated in the body of

--      the public child and the private child, respectively.

--      The main program utilizes the functions declared in the public child

--      to verify results of the instantiations.

--

--      Inspired by B74103F.ADA.

--

--

-- CHANGE HISTORY:

--      12 Mar 96   SAIC    Initial version for ACVC 2.1.

--      05 Oct 96   SAIC    ACVC 2.1: Added pragma Elaborate for CDE0001.

--      21 Nov 98   RLB     Added pragma Elaborate for CDE0001 to CDE0001_3.

--!

package CDE0001_0 is

   subtype Small_Int is Integer range 1 .. 2;

   type Private_Type    is private;

   type Limited_Private is limited private;

   subtype Private_Subtype         is Private_Type;

   subtype Limited_Private_Subtype is Limited_Private;

   type Array_Of_LP_Subtype is array (1..2) of Limited_Private_Subtype;

   type Rec_Of_Limited_Private is

     record

        C1 : Limited_Private;

     end record;

   type Rec_Of_Private_SubType is

     record

        C1 : Private_SubType;

     end record;

   type Tag_Type is tagged

     record

        C1 : Small_Int;

     end record;

   type New_TagType is new Tag_Type with private;

   generic

      Formal_Obj01 : in out Private_Type;              -- Formal objects defined

      Formal_Obj02 : in out Limited_Private;           -- by names of private

      Formal_Obj03 : in out Private_Subtype;           -- types, names that

      Formal_Obj04 : in out Limited_Private_Subtype;   -- denotes subtypes of

      Formal_Obj05 : in out New_TagType;               -- the private types.

   package CDE0001_1 is

      procedure Assign_Objects;

   end CDE0001_1;

private

   generic

      -- Formal array types of a private type, a composite type with a

      -- subcomponent of a private type.

      type Formal_Arr01 is array (Small_Int) of Private_Type;

      type Formal_Arr02 is array (Small_Int) of Rec_Of_Limited_Private;

      -- Formal access types of composite types with a subcomponent of

      -- a private subtype.

      type Formal_Acc01 is access Rec_Of_Private_Subtype;

      type Formal_Acc02 is access Array_Of_LP_Subtype;

   package CDE0001_2 is

      procedure Assign_Arrays (P1 : out Formal_Arr01;

                               P2 : out Formal_Arr02);

      procedure Assign_Access (P1 : out Formal_Acc01;

                               P2 : out Formal_Acc02);

   end CDE0001_2;

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

   type Private_Type    is range 1 .. 10;

   type Limited_Private is (Eh, Bee, Sea, Dee);

   type New_TagType     is new Tag_Type with

     record

        C2 : Private_Type;

     end record;

end CDE0001_0;

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

package body CDE0001_0 is

   package body CDE0001_1 is

      procedure Assign_Objects is

      begin

         Formal_Obj01 := Private_Type'First;

         Formal_Obj02 := Limited_Private'Last;

         Formal_Obj03 := Private_Subtype'Last;

         Formal_Obj04 := Limited_Private_Subtype'First;

         Formal_Obj05 := New_TagType'(C1 => 2, C2 => Private_Type'Last);

      end Assign_Objects;

   end CDE0001_1;

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

   package body CDE0001_2 is

      procedure Assign_Arrays (P1 : out Formal_Arr01;

                               P2 : out Formal_Arr02) is

      begin

         P1(1)    := Private_Type'Pred(Private_Type'Last);

         P1(2)    := Private_Type'Succ(Private_Type'First);

         P2(1).C1 := Limited_Private'Succ(Limited_Private'First);

         P2(2).C1 := Limited_Private'Pred(Limited_Private'Last);

      end Assign_Arrays;

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

      procedure Assign_Access (P1 : out Formal_Acc01;

                               P2 : out Formal_Acc02) is

      begin

         P1 := new Rec_Of_Private_Subtype'(C1 => Private_Subtype'Last);

         P2 := new Array_Of_LP_Subtype'(Eh, Dee);

      end Assign_Access;

   end CDE0001_2;

end CDE0001_0;

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

-- The following private child package instantiates its parent private generic

-- package.

with CDE0001_0;

pragma Elaborate (CDE0001_0); -- So generic unit can be instantiated.

private

package CDE0001_0.CDE0001_3 is

   type Arr01 is array (Small_Int) of Private_Type;

   type Arr02 is array (Small_Int) of Rec_Of_Limited_Private;

   type Acc01 is access Rec_Of_Private_Subtype;

   type Acc02 is access Array_Of_LP_Subtype;

   package Formal_Types_Pck is new CDE0001_2 (Arr01, Arr02, Acc01, Acc02);

   Arr01_Obj : Arr01;

   Arr02_Obj : Arr02;

   Acc01_Obj : Acc01;

   Acc02_Obj : Acc02;

end CDE0001_0.CDE0001_3;

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

package CDE0001_0.CDE0001_4 is

   -- The following functions check the private types defined in the parent

   -- and the private child package from within the client program.

   function Verify_Objects return Boolean;

   function Verify_Arrays return Boolean;

   function Verify_Access return Boolean;

end CDE0001_0.CDE0001_4;

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

with CDE0001_0.CDE0001_3;            -- private sibling.

pragma Elaborate (CDE0001_0.CDE0001_3);

package body CDE0001_0.CDE0001_4 is

   Obj1 : Private_Type            := 2;

   Obj2 : Limited_Private         := Bee;

   Obj3 : Private_Subtype         := 3;

   Obj4 : Limited_Private_Subtype := Sea;

   Obj5 : New_TagType             := (1, 5);

   -- Instantiate the generic package declared in the visible part of

   -- the parent.

   package Formal_Obj_Pck is new CDE0001_1 (Obj1, Obj2, Obj3, Obj4, Obj5);

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

   function Verify_Objects return Boolean is

      Result : Boolean := False;

   begin

      if Obj1    = 1    and

         Obj2    = Dee  and

         Obj3    = 10   and

         Obj4    = Eh   and

         Obj5.C1 = 2    and

         Obj5.C2 = 10   then

           Result := True;

      end if;

      return Result;

   end Verify_Objects;

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

   function Verify_Arrays return Boolean is

      Result : Boolean := False;

   begin

      if CDE0001_0.CDE0001_3.Arr01_Obj(1)    = 9     and

         CDE0001_0.CDE0001_3.Arr01_Obj(2)    = 2     and

         CDE0001_0.CDE0001_3.Arr02_Obj(1).C1 = Bee   and

         CDE0001_0.CDE0001_3.Arr02_Obj(2).C1 = Sea   then

           Result := True;

      end if;

      return Result;

   end Verify_Arrays;

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

   function Verify_Access return Boolean is

      Result : Boolean := False;

   begin

      if CDE0001_0.CDE0001_3.Acc01_Obj.C1  = 10   and

         CDE0001_0.CDE0001_3.Acc02_Obj(1)  = Eh   and

         CDE0001_0.CDE0001_3.Acc02_Obj(2)  = Dee  then

            Result := True;

      end if;

      return Result;

   end Verify_Access;

begin

   Formal_Obj_Pck.Assign_Objects;

   CDE0001_0.CDE0001_3.Formal_Types_Pck.Assign_Arrays

     (CDE0001_0.CDE0001_3.Arr01_Obj, CDE0001_0.CDE0001_3.Arr02_Obj);

   CDE0001_0.CDE0001_3.Formal_Types_Pck.Assign_Access

     (CDE0001_0.CDE0001_3.Acc01_Obj, CDE0001_0.CDE0001_3.Acc02_Obj);

end CDE0001_0.CDE0001_4;

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

with Report;

with CDE0001_0.CDE0001_4;

procedure CDE0001 is

begin

   Report.Test ("CDE0001", "Check that the name of the private type, a "  &

                "name that denotes a subtype of the private type, or a "  &

                "name that denotes a composite type with a subcomponent " &

                "of a private type can be used in the declaration of a "  &

                "generic formal type parameter without causing freezing " &

                "of the named type");

   if not CDE0001_0.CDE0001_4.Verify_Objects then

      Report.Failed ("Wrong values for formal objects");

   end if;

   if not CDE0001_0.CDE0001_4.Verify_Arrays then

      Report.Failed ("Wrong values for formal array types");

   end if;

   if not CDE0001_0.CDE0001_4.Verify_Access then

      Report.Failed ("Wrong values for formal access types");

   end if;

   Report.Result;

end CDE0001;