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comparison gcc/testsuite/ada/acats/tests/cc/cc51d01.a @ 111:04ced10e8804

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author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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1 -- CC51D01.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, in an instance, each implicit declaration of a user-defined
28 -- subprogram of a formal private extension declares a view of the
29 -- corresponding primitive subprogram of the ancestor, and that if the
30 -- tag in a call is statically determined to be that of the formal type,
31 -- the body executed will be that corresponding to the actual type.
32 --
33 -- Check subprograms declared within a generic formal package. Check for
34 -- the case where the actual type passed to the formal private extension
35 -- is a specific tagged type. Check for several types in the same class.
36 --
37 --
38 -- TEST DESCRIPTION:
39 -- Declare a list abstraction in a generic package which manages lists of
40 -- elements of any nonlimited type (foundation code). Declare a package
41 -- which declares a tagged type and a type derived from it. Declare an
42 -- operation for the root tagged type and override it for the derived
43 -- type. Derive a type from this derived type, but do not override the
44 -- operation. Declare a generic subprogram which operates on lists of
45 -- elements of tagged types. Provide the generic subprogram with two
46 -- formal parameters: (1) a formal derived tagged type which represents a
47 -- list element type, and (2) a generic formal package with the list
48 -- abstraction package as template. Use the formal derived type as the
49 -- generic formal actual part for the formal package. Within the generic
50 -- subprogram, call the operation of the root tagged type. In the main
51 -- program, instantiate the generic list package and the generic
52 -- subprogram with the root tagged type and each derivative, then call
53 -- each instance with an object of the appropriate type.
54 --
55 -- TEST FILES:
56 -- The following files comprise this test:
57 --
58 -- FC51D00.A
59 -- -> CC51D01.A
60 --
61 --
62 -- CHANGE HISTORY:
63 -- 06 Dec 94 SAIC ACVC 2.0
64 -- 04 Jan 95 SAIC Moved declaration of type Ranked_ID_Type from
65 -- main subprogram to package CC51D01_0. Removed
66 -- case passing class-wide actual to instance.
67 -- Updated test description and modified comments.
68 --
69 --!
70
71 package CC51D01_0 is -- This package simulates support for a personnel
72 -- database.
73
74 type SSN_Type is new String (1 .. 9);
75
76 type Blind_ID_Type is tagged record -- Root type of
77 SSN : SSN_Type; -- class.
78 -- ... Other components.
79 end record;
80
81 procedure Update_ID (Item : in out Blind_ID_Type); -- Parent operation.
82
83 -- ... Other operations.
84
85
86 type Name_Type is new String (1 .. 9);
87
88 type Named_ID_Type is new Blind_ID_Type with record -- Direct derivative
89 Name : Name_Type := "Doe "; -- of root type.
90 -- ... Other components.
91 end record;
92
93 -- Inherits Update_ID from parent.
94
95 procedure Update_ID (Item : in out Named_ID_Type); -- Overrides parent's
96 -- implementation.
97
98
99 type Ranked_ID_Type is new Named_ID_Type with record
100 Level : Integer := 0; -- Indirect derivative
101 -- ... Other components. -- of root type.
102 end record;
103
104 -- Inherits Update_ID from parent.
105
106 end CC51D01_0;
107
108
109 --==================================================================--
110
111
112 package body CC51D01_0 is
113
114 -- The implementations of Update_ID are purely artificial; the validity of
115 -- their implementations in the context of the abstraction is irrelevant to
116 -- the feature being tested.
117
118 procedure Update_ID (Item : in out Blind_ID_Type) is
119 begin
120 Item.SSN := "111223333";
121 end Update_ID;
122
123
124 procedure Update_ID (Item : in out Named_ID_Type) is
125 begin
126 Item.SSN := "444556666";
127 -- ... Other stuff.
128 end Update_ID;
129
130 end CC51D01_0;
131
132
133 --==================================================================--
134
135
136 -- --
137 -- Formal package used here. --
138 -- --
139
140 with FC51D00; -- Generic list abstraction.
141 with CC51D01_0; -- Tagged type declarations.
142 generic -- This procedure simulates a generic operation for types
143 -- in the class rooted at Blind_ID_Type.
144 type Elem_Type is new CC51D01_0.Blind_ID_Type with private;
145 with package List_Mgr is new FC51D00 (Elem_Type);
146 procedure CC51D01_1 (L : in out List_Mgr.List_Type; E : in Elem_Type);
147
148
149 --==================================================================--
150
151
152 -- The implementation of CC51D01_1 is purely artificial; the validity
153 -- of its implementation in the context of the abstraction is irrelevant
154 -- to the feature being tested.
155 --
156 -- The expected behavior here is as follows: for each actual type corresponding
157 -- to Elem_Type, the call to Update_ID should invoke the actual type's
158 -- implementation, which updates the object's SSN field. Write_Element then
159 -- adds the object to the list.
160
161 procedure CC51D01_1 (L : in out List_Mgr.List_Type; E : in Elem_Type) is
162 Element : Elem_Type := E; -- Can't update IN parameter.
163 begin
164 Update_ID (Element); -- Executes actual type's version.
165 List_Mgr.Write_Element (1, L, Element); -- Executes actual type's version.
166 end CC51D01_1;
167
168
169 --==================================================================--
170
171
172 with FC51D00; -- Generic list abstraction.
173 with CC51D01_0; -- Tagged type declarations.
174 with CC51D01_1; -- Generic operation.
175
176 with Report;
177 procedure CC51D01 is
178
179 use CC51D01_0; -- All types & ops
180 -- directly visible.
181
182 -- Begin test code declarations: -----------------------
183
184 TC_Expected_1 : Blind_ID_Type := (SSN => "111223333");
185 TC_Expected_2 : Named_ID_Type := ("444556666", "Doe ");
186 TC_Expected_3 : Ranked_ID_Type := ("444556666", "Doe ", 0);
187
188 TC_Initial_1 : Blind_ID_Type := (SSN => "777889999");
189 TC_Initial_2 : Named_ID_Type := ("777889999", "Doe ");
190 TC_Initial_3 : Ranked_ID_Type := ("777889999", "Doe ", 0);
191
192 -- End test code declarations. -------------------------
193
194
195 -- Begin instantiations and list declarations: ---------
196
197 -- At this point in an application, the generic list package would be
198 -- instantiated for one of the visible tagged types. Next, the generic
199 -- subprogram would be instantiated for the same tagged type and the
200 -- preceding list package instance.
201 --
202 -- In order to cover all the important cases, this test instantiates several
203 -- packages and subprograms (probably more than would typically appear
204 -- in user code).
205
206 -- Support for lists of blind IDs:
207
208 package Blind_Lists is new FC51D00 (Blind_ID_Type);
209 procedure Update_and_Write is new CC51D01_1 (Blind_ID_Type, Blind_Lists);
210 Blind_List : Blind_Lists.List_Type;
211
212
213 -- Support for lists of named IDs:
214
215 package Named_Lists is new FC51D00 (Named_ID_Type);
216 procedure Update_and_Write is new -- Overloads subprog
217 CC51D01_1 (Elem_Type => Named_ID_Type, -- for Blind_ID_Type.
218 List_Mgr => Named_Lists);
219 Named_List : Named_Lists.List_Type;
220
221
222 -- Support for lists of ranked IDs:
223
224 package Ranked_Lists is new FC51D00 (Ranked_ID_Type);
225 procedure Update_and_Write is new -- Overloads.
226 CC51D01_1 (Elem_Type => Ranked_ID_Type,
227 List_Mgr => Ranked_Lists);
228 Ranked_List : Ranked_Lists.List_Type;
229
230 -- End instantiations and list declarations. -----------
231
232
233 begin
234 Report.Test ("CC51D01", "Formal private extension, specific tagged " &
235 "type actual: body of primitive subprogram executed is " &
236 "that of actual type. Check for subprograms declared in " &
237 "a formal package");
238
239
240 Update_and_Write (Blind_List, TC_Initial_1);
241
242 if (Blind_Lists.View_Element (1, Blind_List) /= TC_Expected_1) then
243 Report.Failed ("Wrong result for root tagged type");
244 end if;
245
246
247 Update_and_Write (Named_List, TC_Initial_2);
248
249 if (Named_Lists.View_Element (1, Named_List) /= TC_Expected_2) then
250 Report.Failed ("Wrong result for type derived directly from root");
251 end if;
252
253
254 Update_and_Write (Ranked_List, TC_Initial_3);
255
256 if (Ranked_Lists.View_Element (1, Ranked_List) /= TC_Expected_3) then
257 Report.Failed ("Wrong result for type derived indirectly from root");
258 end if;
259
260
261 Report.Result;
262 end CC51D01;