1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
-- C730A01.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 a tagged type declared in a package specification
-- may be passed as a generic formal (tagged) private type to a generic
-- package declaration. Check that the formal type may be extended with
-- a private extension in the generic package.
--
-- Check that, in the instance, the private extension inherits the
-- user-defined primitive subprograms of the tagged actual.
--
-- TEST DESCRIPTION:
-- Declare a tagged type and an associated primitive subprogram in a
-- package specification (foundation code). Declare a generic package
-- which takes a tagged type as a formal parameter, and then extends
-- it with a private extension (foundation code).
--
-- Instantiate the generic package with the tagged type from the first
-- package (the "generic" extension should now have inherited
-- the primitive subprogram of the tagged type from the first
-- package).
--
-- In the main program, call the primitive subprogram inherited by the
-- "generic" extension, and verify the correctness of the components.
--
-- TEST FILES:
-- The following files comprise this test:
--
-- F730A000.A
-- F730A001.A
-- => C730A01.A
--
--
-- CHANGE HISTORY:
-- 06 Dec 94 SAIC ACVC 2.0
--
--!
with F730A001; -- Book definitions.
package C730A01_0 is -- Raw data to be used in creating book elements.
Book_Count : constant := 3;
subtype Number_Of_Books is Integer range 1 .. Book_Count;
type Data_List is array (Number_Of_Books) of F730A001.Text_Ptr;
Title_List : Data_List := (new String'("Wuthering Heights"),
new String'("Heart of Darkness"),
new String'("Ulysses"));
Author_List : Data_List := (new String'("Bronte, Emily"),
new String'("Conrad, Joseph"),
new String'("Joyce, James"));
end C730A01_0;
--==================================================================--
--==================================================================--
-- Library-level instantiation. Actual parameter is tagged record.
with F730A001; -- Book definitions.
with F730A000; -- Singly-linked list abstraction.
package C730A01_1 is new F730A000 (Parent_Type => F730A001.Book_Type);
--==================================================================--
with Report;
with F730A001; -- Book definitions.
with C730A01_0; -- Raw book data.
with C730A01_1; -- Instance.
use F730A001; -- Primitive operations of Book_Type directly visible.
use C730A01_1; -- Operations inherited by Node_Type directly visible.
procedure C730A01 is
List_Of_Books : Priv_Node_Ptr := null; -- Head of linked list of books.
--========================================================--
procedure Create_List (Title, Author : in C730A01_0.Data_List;
Head : in out Priv_Node_Ptr) is
Book : Priv_Node_Type; -- Object of extended type.
Book_Ptr : Priv_Node_Ptr;
begin
for I in C730A01_0.Number_Of_Books loop
Create_Book (Title (I), Author (I), Book); -- Call inherited
-- operation.
Book_Ptr := new Priv_Node_Type'(Book);
Add (Book_Ptr, Head);
end loop;
end Create_List;
--========================================================--
function Bad_List_Contents return Boolean is
Book1_Ptr : Priv_Node_Ptr;
Book2_Ptr : Priv_Node_Ptr;
Book3_Ptr : Priv_Node_Ptr;
begin
Remove (List_Of_Books, Book1_Ptr);
Remove (List_Of_Books, Book2_Ptr);
Remove (List_Of_Books, Book3_Ptr);
return (Book1_Ptr.Title.all /= "Ulysses" or -- Inherited
Book1_Ptr.Author.all /= "Joyce, James" or -- components
Book2_Ptr.Title.all /= "Heart of Darkness" or -- should still
Book2_Ptr.Author.all /= "Conrad, Joseph" or -- be visible in
Book3_Ptr.Title.all /= "Wuthering Heights" or -- private
Book3_Ptr.Author.all /= "Bronte, Emily"); -- extension.
end Bad_List_Contents;
--========================================================--
begin -- Main program.
Report.Test ("C730A01", "Inheritance of primitive operations: private " &
"extension of formal tagged private type; actual is " &
"an ultimate ancestor type");
-- Create linked list using inherited operation:
Create_List (C730A01_0.Title_List, C730A01_0.Author_List, List_Of_Books);
-- Verify results:
if Bad_List_Contents then
Report.Failed ("Wrong values after call to inherited operation");
end if;
Report.Result;
end C730A01;
|
