1-- CA11A02.A
2--
3--                             Grant of Unlimited Rights
4--
5--     Under contracts F33600-87-D-0337, F33600-84-D-0280, MDA903-79-C-0687,
6--     F08630-91-C-0015, and DCA100-97-D-0025, the U.S. Government obtained
7--     unlimited rights in the software and documentation contained herein.
8--     Unlimited rights are defined in DFAR 252.227-7013(a)(19).  By making
9--     this public release, the Government intends to confer upon all
10--     recipients unlimited rights  equal to those held by the Government.
11--     These rights include rights to use, duplicate, release or disclose the
12--     released technical data and computer software in whole or in part, in
13--     any manner and for any purpose whatsoever, and to have or permit others
14--     to do so.
15--
16--                                    DISCLAIMER
17--
18--     ALL MATERIALS OR INFORMATION HEREIN RELEASED, MADE AVAILABLE OR
19--     DISCLOSED ARE AS IS.  THE GOVERNMENT MAKES NO EXPRESS OR IMPLIED
20--     WARRANTY AS TO ANY MATTER WHATSOEVER, INCLUDING THE CONDITIONS OF THE
21--     SOFTWARE, DOCUMENTATION OR OTHER INFORMATION RELEASED, MADE AVAILABLE
22--     OR DISCLOSED, OR THE OWNERSHIP, MERCHANTABILITY, OR FITNESS FOR A
23--     PARTICULAR PURPOSE OF SAID MATERIAL.
24--*
25--
26-- OBJECTIVE:
27--      Check that a type extended in a client of a public child inherits
28--      primitive operations from parent.
29--
30-- TEST DESCRIPTION:
31--      Declare a root tagged type in a package specification. Declare two
32--      primitive subprograms for the type (foundation code).
33--
34--      Add a public child to the above package.  Extend the root type with
35--      a record extension in the specification.  Declare a new primitive
36--      subprogram to write to the child extension.
37--
38--      In the main program, "with" the child.  Declare an extension of
39--      the child extension.  Access the primitive operations from both
40--      parent and child packages.
41--
42-- TEST FILES:
43--      This test depends on the following foundation code:
44--
45--         FA11A00.A
46--
47--
48-- CHANGE HISTORY:
49--      06 Dec 94   SAIC    ACVC 2.0
50--      20 Dec 94   SAIC    Moved declaration of Label_Widget to library level
51--
52--!
53
54package FA11A00.CA11A02_0 is     -- Color_Widget_Pkg
55-- This public child declares an extension from its parent.  It
56-- represents processing of widgets in a window system.
57
58   type Widget_Color_Enum is (Black, Green, White);
59
60   type Color_Widget is new Widget with           -- Record extension of
61      record                                      -- parent tagged type.
62         Color : Widget_Color_Enum;
63      end record;
64
65   -- Inherits procedure Set_Width from parent.
66   -- Inherits procedure Set_Height from parent.
67
68   -- To be inherited by its derivatives.
69   procedure Set_Color (The_Widget : in out Color_Widget;
70                        C          : in     Widget_Color_Enum);
71
72end FA11A00.CA11A02_0;     -- Color_Widget_Pkg
73
74--=======================================================================--
75
76package body FA11A00.CA11A02_0 is     -- Color_Widget_Pkg
77
78   procedure Set_Color (The_Widget : in out Color_Widget;
79                        C          : in     Widget_Color_Enum) is
80   begin
81      The_Widget.Color := C;
82   end Set_Color;
83
84end FA11A00.CA11A02_0;     -- Color_Widget_Pkg
85
86--=======================================================================--
87
88with FA11A00.CA11A02_0;               -- Color_Widget_Pkg.
89
90package CA11A02_1 is
91
92   type Label_Widget (Str_Disc : Integer) is new
93     FA11A00.CA11A02_0.Color_Widget with
94       record
95         Label : String (1 .. Str_Disc);
96       end record;
97
98   -- Inherits (inherited) procedure Set_Width from Color_Widget.
99   -- Inherits (inherited) procedure Set_Height from Color_Widget.
100   -- Inherits procedure Set_Color from Color_Widget.
101
102end CA11A02_1;
103
104--=======================================================================--
105
106with FA11A00.CA11A02_0;               -- Color_Widget_Pkg,
107                                      -- implicitly with Widget_Pkg
108with CA11A02_1;
109
110with Report;
111
112procedure CA11A02 is
113
114   package Widget_Pkg renames FA11A00;
115   package Color_Widget_Pkg renames FA11A00.CA11A02_0;
116
117   use Widget_Pkg;              -- All user-defined operators directly visible.
118
119   procedure Set_Label (The_Widget : in out CA11A02_1.Label_Widget;
120                        L          : in     String) is
121   begin
122      The_Widget.Label := L;
123   end Set_Label;
124   ---------------------------------------------------------
125   procedure Set_Widget (The_Widget : in out CA11A02_1.Label_Widget;
126                         The_Width  : in     Widget_Length;
127                         The_Height : in     Widget_Length;
128                         The_Color  : in
129                                          Color_Widget_Pkg.Widget_Color_Enum;
130                         The_Label  : in     String) is
131   begin
132      CA11A02_1.Set_Width  (The_Widget, The_Width);    -- Twice inherited.
133      CA11A02_1.Set_Height (The_Widget, The_Height);   -- Twice inherited.
134      CA11A02_1.Set_Color (The_Widget, The_Color);     -- Inherited.
135      Set_Label  (The_Widget, The_Label);              -- Explicitly declared.
136   end Set_Widget;
137
138   White_Widget : CA11A02_1.Label_Widget (11);
139
140begin
141
142   Report.Test ("CA11A02", "Check that a type extended in a client of " &
143                "a public child inherits primitive operations from parent");
144
145   Set_Widget (White_Widget, 15, 21, Color_Widget_Pkg.White, "Alarm_Clock");
146
147   If White_Widget.Width /= Widget_Length (Report.Ident_Int (15)) or
148     White_Widget.Height /= Widget_Length (Report.Ident_Int (21)) or
149       Color_Widget_Pkg."/=" (White_Widget.Color, Color_Widget_Pkg.White) or
150         White_Widget.Label /= "Alarm_Clock" then
151            Report.Failed ("Incorrect result for White_Widget");
152   end if;
153
154   Report.Result;
155
156end CA11A02;
157