Mercurial > hg > CbC > CbC_gcc

comparison gcc/testsuite/ada/acats/tests/ca/ca11010.a @ 111:04ced10e8804

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents
children
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
1 -- CA11010.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 private child package can use entities declared in the
28 -- private part of its parent unit.
29 --
30 -- TEST DESCRIPTION:
31 -- Declare a parent package containing private types, objects,
32 -- and functions used by the system. Declare a private child package that
33 -- uses the parent components to provide functionality to the system.
34 --
35 -- Declare an array of files with default values for all
36 -- component fields of the files (records). Check the initial state of
37 -- a specified file for proper default values. Perform the file "creation"
38 -- (initialization), which will modify the fields of the record object.
39 -- Again verify the file object to determine whether the fields have been
40 -- reset properly.
41 --
42 --
43 -- CHANGE HISTORY:
44 -- 06 Dec 94 SAIC ACVC 2.0
45 --
46
47 package CA11010_0 is -- Package OS.
48
49 type File_Descriptor_Type is private;
50
51 Default_Descriptor : constant File_Descriptor_Type;
52
53 function Initialize_File return File_Descriptor_Type;
54 procedure Verify_Initial_Conditions (Status : out Boolean);
55 function Final_Conditions_Valid return Boolean;
56
57 private
58
59 type File_Descriptor_Type is new Integer;
60 type File_Name_Type is new String (1 .. 11);
61 type Permission_Type is (None, User, System);
62 type File_Mode_Type is (Read_Only, Write_Only, Read_Write);
63 type File_Status_Type is (Open, Closed);
64
65 Default_Descriptor : constant File_Descriptor_Type := 0;
66 Default_Permission : constant Permission_Type := None;
67 Default_Mode : constant File_Mode_Type := Read_Only;
68 Default_Status : constant File_Status_Type := Closed;
69 Default_Filename : constant File_Name_Type := " ";
70 An_Ada_File_Name : constant File_Name_Type := "AdaFileName";
71 Max_Files : constant File_Descriptor_Type := 100;
72
73 type File_Type is tagged
74 record
75 Descriptor : File_Descriptor_Type := Default_Descriptor;
76 Name : File_Name_Type := Default_Filename;
77 Acct_Access : Permission_Type := Default_Permission;
78 Mode : File_Mode_Type := Default_Mode;
79 Current_Status : File_Status_Type := Default_Status;
80 end record;
81
82 type File_Array_Type is array (1 .. Max_Files) of File_Type;
83
84 File_Table : File_Array_Type;
85 File_Counter : Integer := 0;
86
87 --
88
89 function Get_File_Name return File_Name_Type;
90
91 end CA11010_0; -- Package OS.
92
93 --=================================================================--
94
95 -- Subprograms that perform the actual file operations are contained in a
96 -- private package so that they are not accessible to any client.
97
98 private package CA11010_0.CA11010_1 is -- Package OS.Internals
99
100 Private_File_Counter : Integer renames File_Counter; -- Parent priv. object.
101
102 function Initialize
103 (File_Name : File_Name_Type := Get_File_Name; -- Parent priv. function.
104 File_Mode : File_Mode_Type := Read_Write) -- Parent priv. literal.
105 return File_Descriptor_Type; -- Parent type.
106
107 end CA11010_0.CA11010_1; -- Package OS.Internals
108
109 --=================================================================--
110
111 package body CA11010_0.CA11010_1 is -- Package body OS.Internals
112
113 function Next_Available_File return File_Descriptor_Type is
114 begin
115 Private_File_Counter := Private_File_Counter + 1;
116 return (File_Descriptor_Type(File_Counter));
117 end Next_Available_File;
118 ----------------------------------------------------------------
119 function Initialize
120 (File_Name : File_Name_Type := Get_File_Name; -- Parent priv. function
121 File_Mode : File_Mode_Type := Read_Write) -- Parent priv. literal
122 return File_Descriptor_Type is -- Parent type
123 Number : File_Descriptor_Type;
124 begin
125 Number := Next_Available_File;
126 File_Table(Number).Descriptor := Number; -- Parent priv. object
127 File_Table(Number).Name := File_Name; -- Default parameter value
128 File_Table(Number).Mode := File_Mode; -- Default parameter value
129 File_Table(Number).Acct_Access := User;
130 File_Table(Number).Current_Status := Open;
131 return (Number);
132 end Initialize;
133
134 end CA11010_0.CA11010_1; -- Package body OS.Internals
135
136 --=================================================================--
137
138 with CA11010_0.CA11010_1; -- Private child package "withed" by
139 -- parent body.
140
141 package body CA11010_0 is -- Package body OS
142
143 function Get_File_Name return File_Name_Type is
144 begin
145 return (An_Ada_File_Name); -- If this was a real function, the user
146 end Get_File_Name; -- would be asked to input a name, or there
147 -- would be some type of similar processing.
148
149 -- This subprogram utilizes a call to a subprogram contained in a private
150 -- child to perform the actual processing.
151
152 function Initialize_File return File_Descriptor_Type is
153 begin
154 return (CA11010_0.CA11010_1.Initialize); -- No parameters are needed,
155 -- since defaults have been
156 -- provided.
157 end Initialize_File;
158
159 --
160 -- Separate subunits.
161 --
162
163 procedure Verify_Initial_Conditions (Status : out Boolean) is separate;
164
165 function Final_Conditions_Valid return Boolean is separate;
166
167 end CA11010_0; -- Package body OS
168
169 --=================================================================--
170
171 separate (CA11010_0)
172 procedure Verify_Initial_Conditions (Status : out Boolean) is
173 begin
174 Status := False;
175 if (File_Table(1).Descriptor = Default_Descriptor) and then
176 (File_Table(1).Name = Default_Filename) and then
177 (File_Table(1).Acct_Access = Default_Permission) and then
178 (File_Table(1).Mode = Default_Mode) and then
179 (File_Table(1).Current_Status = Default_Status)
180 then
181 Status := True;
182 end if;
183 end Verify_Initial_Conditions;
184
185 --=================================================================--
186
187 separate (CA11010_0)
188 function Final_Conditions_Valid return Boolean is
189 begin
190 if ((File_Table(1).Descriptor /= Default_Descriptor) and then
191 (File_Table(1).Name = An_Ada_File_Name) and then
192 (File_Table(1).Acct_Access = User) and then
193 not ((File_Table(1).Mode = Default_Mode) or else
194 (File_Table(1).Current_Status = Default_Status)))
195 then
196 return (True);
197 else
198 return (False);
199 end if;
200 end Final_Conditions_Valid;
201
202 --=================================================================--
203
204 with CA11010_0; -- with Package OS.
205 with Report;
206
207 procedure CA11010 is
208
209 package OS renames CA11010_0;
210
211 Ada_File_Key : OS.File_Descriptor_Type := OS.Default_Descriptor;
212 Initialization_Status : Boolean := False;
213
214 begin
215
216 -- This test indicates one approach to a file management operation.
217 -- It is not intended to demonstrate full functionality, but rather
218 -- that the use of a private child package can provide a solution
219 -- to a user situation, that being the implementation of certain functions
220 -- being provided in a child package, with the parent package body
221 -- utilizing these implementations.
222
223 Report.Test ("CA11010", "Check that a private child package can use " &
224 "entities declared in the private part of its " &
225 "parent unit");
226
227 -- Check initial conditions of the first entry in the file table.
228 -- These are all default values provided in the declaration of the
229 -- type File_Type.
230
231 OS.Verify_Initial_Conditions (Initialization_Status);
232
233 if not Initialization_Status then
234 Report.Failed ("Initial condition failure");
235 end if;
236
237 -- Call the initialization function. This will result in the resetting
238 -- of the fields associated with the first entry in the File_Table (this
239 -- is the first/only call of Initialize_File).
240 -- No parameters are necessary for this call, due to the default values
241 -- provided in the private child package routine Initialize.
242
243 Ada_File_Key := OS.Initialize_File;
244
245 -- Verify that the initial conditions of the file table component have
246 -- been properly modified by the initialization function.
247
248 if not OS.Final_Conditions_Valid then
249 Report.Failed ("Initialization processing failure");
250 end if;
251
252 Report.Result;
253
254 end CA11010;