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-- CA11A01.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 type extended in a public child inherits primitive

--      operations from its ancestor.

--

-- TEST DESCRIPTION:

--      Declare a root tagged type in a package specification. Declare two

--      primitive subprograms for the type (foundation code).

--

--      Add a public child to the above package.  Extend the root type with

--      a record extension in the specification.  Declare a new primitive

--      subprogram to write to the child extension.

--

--      Add a public grandchild to the above package.  Extend the extension of

--      the parent type with a record extension in the private part of the

--      specification.  Declare a new primitive subprogram for this grandchild

--      extension.

--

--      In the main program, "with" the grandchild.  Access the primitive

--      operations from grandparent and parent package.

--

-- TEST FILES:

--      This test depends on the following foundation code:

--

--         FA11A00.A

--

--

-- CHANGE HISTORY:

--      06 Dec 94   SAIC    ACVC 2.0

--

--!

package FA11A00.CA11A01_0 is     -- Color_Widget_Pkg

-- This public child declares an extension from its parent.  It

-- represents processing of widgets in a window system.

   type Widget_Color_Enum is (Black, Green, White);

   type Color_Widget is new Widget with           -- Record extension of

      record                                      -- parent tagged type.

         Color : Widget_Color_Enum;

      end record;

   -- Inherits procedure Set_Width from Widget.

   -- Inherits procedure Set_Height from Widget.

   -- To be inherited by its derivatives.

   procedure Set_Color (The_Widget : in out Color_Widget;

                        C          : in     Widget_Color_Enum);

   procedure Set_Color_Widget (The_Widget : in out Color_Widget;

                               The_Width  : in     Widget_Length;

                               The_Height : in     Widget_Length;

                               The_Color  : in     Widget_Color_Enum);

end FA11A00.CA11A01_0;     -- Color_Widget_Pkg

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

package body FA11A00.CA11A01_0 is     -- Color_Widget_Pkg

   procedure Set_Color (The_Widget : in out Color_Widget;

                        C          : in     Widget_Color_Enum) is

   begin

      The_Widget.Color := C;

   end Set_Color;

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

   procedure Set_Color_Widget (The_Widget : in out Color_Widget;

                               The_Width  : in     Widget_Length;

                               The_Height : in     Widget_Length;

                               The_Color  : in     Widget_Color_Enum) is

   begin

      Set_Width  (The_Widget, The_Width);   -- Inherited from parent.

      Set_Height (The_Widget, The_Height);  -- Inherited from parent.

      Set_Color  (The_Widget, The_Color);

   end Set_Color_Widget;

end FA11A00.CA11A01_0;     -- Color_Widget_Pkg

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

package FA11A00.CA11A01_0.CA11A01_1 is     -- Label_Widget_Pkg

-- This public grandchild extends the extension from its parent.  It

-- represents processing of widgets in a window system.

   -- Declaration used by private extension component.

   subtype Widget_Label_Str is string (1 .. 10);

   type Label_Widget is new Color_Widget with private;

                            -- Record extension of parent tagged type.

   -- Inherits (inherited) procedure Set_Width from Color_Widget.

   -- Inherits (inherited) procedure Set_Height from Color_Widget.

   -- Inherits procedure Set_Color from Color_Widget.

   -- Inherits procedure Set_Color_Widget from Color_Widget.

   procedure Set_Label_Widget (The_Widget : in out Label_Widget;

                               The_Width  : in     Widget_Length;

                               The_Height : in     Widget_Length;

                               The_Color  : in     Widget_Color_Enum;

                               The_Label  : in     Widget_Label_Str);

   -- The following function is needed to verify the value of the

   -- extension's private component.

   function Verify_Label (The_Widget : in Label_Widget;

                          The_Label  : in Widget_Label_Str) return Boolean;

private

   type Label_Widget is new Color_Widget with

      record

         Label : Widget_Label_Str;

      end record;

end FA11A00.CA11A01_0.CA11A01_1;     -- Label_Widget_Pkg

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

package body FA11A00.CA11A01_0.CA11A01_1 is     -- Label_Widget_Pkg

   procedure Set_Label (The_Widget : in out Label_Widget;

                        L          : in     Widget_Label_Str) is

   begin

      The_Widget.Label := L;

   end Set_Label;

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

   procedure Set_Label_Widget (The_Widget : in out Label_Widget;

                               The_Width  : in     Widget_Length;

                               The_Height : in     Widget_Length;

                               The_Color  : in     Widget_Color_Enum;

                               The_Label  : in     Widget_Label_Str) is

   begin

      Set_Width  (The_Widget, The_Width);   -- Twice inherited.

      Set_Height (The_Widget, The_Height);  -- Twice inherited.

      Set_Color  (The_Widget, The_Color);   -- Inherited from parent.

      Set_Label  (The_Widget, The_Label);

   end Set_Label_Widget;

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

   function Verify_Label (The_Widget : in Label_Widget;

                          The_Label  : in Widget_Label_Str) return Boolean is

   begin

      return (The_Widget.Label = The_Label);

   end Verify_Label;

end FA11A00.CA11A01_0.CA11A01_1;     -- Label_Widget_Pkg

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

with FA11A00.CA11A01_0.CA11A01_1;     -- Label_Widget_Pkg,

                                      -- implicitly with Widget_Pkg,

                                      -- implicitly with Color_Widget_Pkg

with Report;

procedure CA11A01 is

   package Widget_Pkg renames FA11A00;

   package Color_Widget_Pkg renames FA11A00.CA11A01_0;

   package Label_Widget_Pkg renames FA11A00.CA11A01_0.CA11A01_1;

   use Widget_Pkg;              -- All user-defined operators directly visible.

   Mail_Label     : Label_Widget_Pkg.Widget_Label_Str := "Quick_Mail";

   Default_Widget : Widget;

   Black_Widget   : Color_Widget_Pkg.Color_Widget;

   Mail_Widget    : Label_Widget_Pkg.Label_Widget;

begin

   Report.Test ("CA11A01", "Check that type extended in a public " &

                "child inherits primitive operations from its " &

                "ancestor");

   Set_Width (Default_Widget, 9);             -- Call from parent.

   Set_Height (Default_Widget, 10);           -- Call from parent.

   If Default_Widget.Width /= Widget_Length (Report.Ident_Int (9)) or

     Default_Widget.Height /= Widget_Length (Report.Ident_Int (10)) then

        Report.Failed ("Incorrect result for Default_Widget");

   end if;

   Color_Widget_Pkg.Set_Color_Widget

     (Black_Widget, 17, 18, Color_Widget_Pkg.Black);   -- Explicitly declared.

   If Black_Widget.Width /= Widget_Length (Report.Ident_Int (17)) or

     Black_Widget.Height /= Widget_Length (Report.Ident_Int (18)) or

       Color_Widget_Pkg."/=" (Black_Widget.Color, Color_Widget_Pkg.Black) then

          Report.Failed ("Incorrect result for Black_Widget");

   end if;

   Label_Widget_Pkg.Set_Label_Widget

     (Mail_Widget, 15, 21, Color_Widget_Pkg.White,

       "Quick_Mail");                                  -- Explicitly declared.

   If Mail_Widget.Width /= Widget_Length (Report.Ident_Int (15)) or

     Mail_Widget.Height /= Widget_Length (Report.Ident_Int (21)) or

       Color_Widget_Pkg."/=" (Mail_Widget.Color, Color_Widget_Pkg.White) or

         not Label_Widget_Pkg.Verify_Label (Mail_Widget, Mail_Label) then

            Report.Failed ("Incorrect result for Mail_Widget");

   end if;

   Report.Result;

end CA11A01;