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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- R E S T R I C T --
-- --
-- B o d y --
-- --
-- $Revision: 1.9 $ --
-- --
-- Copyright (C) 1992-1997 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
with Atree; use Atree;
with Casing; use Casing;
with Errout; use Errout;
with Exp_Util; use Exp_Util;
with Fname; use Fname;
with Namet; use Namet;
with Nmake; use Nmake;
with Output; use Output;
with Sem; use Sem;
with Sinfo; use Sinfo;
with Stand; use Stand;
with Tbuild; use Tbuild;
package body Restrict is
---------------------------
-- Check_Restricted_Unit --
---------------------------
procedure Check_Restricted_Unit (U : Unit_Name_Type; Loc : Source_Ptr) is
begin
if Any_Restrictions and then Is_Spec_Name (U) then
declare
Fnam : constant File_Name_Type := Get_File_Name (U);
begin
if not Is_Predefined_File_Name (Fnam) then
return;
-- Ada child unit spec, needs checking against list
else
-- Pad name to 8 characters with blanks
Get_Name_String (Fnam);
Name_Len := Name_Len - 4;
while Name_Len < 8 loop
Name_Len := Name_Len + 1;
Name_Buffer (Name_Len) := ' ';
end loop;
for J in Unit_Array'Range loop
if Restrictions (Unit_Array (J).Res_Id)
and then Name_Buffer (3 .. 8) = Unit_Array (J).Filenm
then
declare
S : constant String :=
Restriction_Id'Image (Unit_Array (J).Res_Id);
begin
Name_Buffer (1 .. S'Last) := S;
Name_Len := S'Length;
Set_Casing (All_Lower_Case);
Error_Msg_Name_1 := Name_Enter;
Error_Msg_Unit_1 := U;
Error_Msg
("loading unit$ violates restriction %", Loc);
return;
end;
end if;
end loop;
end if;
end;
end if;
end Check_Restricted_Unit;
-----------------------------------------
-- Check_Restriction (Identifier Case) --
-----------------------------------------
procedure Check_Restriction (R : Restriction_Id; N : Node_Id) is
begin
if Restrictions (R) then
declare
S : constant String := Restriction_Id'Image (R);
begin
Name_Buffer (1 .. S'Last) := S;
Name_Len := S'Length;
Set_Casing (All_Lower_Case);
Error_Msg_Name_1 := Name_Enter;
Error_Msg_N ("violation of restriction %", N);
end;
end if;
end Check_Restriction;
-------------------------------------------------------------
-- Check_Restriction_Parameter (Identifier Parameter Case) --
-------------------------------------------------------------
procedure Check_Restriction
(R : Restriction_Parameter_Id;
N : Node_Id)
is
begin
if Restriction_Parameters (R) = Uint_0 then
declare
Loc : constant Source_Ptr := Sloc (N);
S : constant String :=
Restriction_Parameter_Id'Image (R);
begin
Error_Msg_NE
("& will be raised at runtime?!", N, Standard_Storage_Error);
Name_Buffer (1 .. S'Last) := S;
Name_Len := S'Length;
Set_Casing (All_Lower_Case);
Error_Msg_Name_1 := Name_Enter;
Error_Msg_N ("violation of restriction %?!", N);
Insert_Action (N,
Make_Raise_Storage_Error (Loc));
end;
end if;
end Check_Restriction;
------------------------------------------------------------------------
-- Check_Restriction_Parameter (Identifier Parameter Case with Count) --
------------------------------------------------------------------------
procedure Check_Restriction
(R : Restriction_Parameter_Id;
V : Uint;
N : Node_Id)
is
begin
if Restriction_Parameters (R) >= Uint_0
and then V > Restriction_Parameters (R)
then
declare
S : constant String := Restriction_Parameter_Id'Image (R);
begin
Name_Buffer (1 .. S'Last) := S;
Name_Len := S'Length;
Set_Casing (All_Lower_Case);
Error_Msg_Name_1 := Name_Enter;
Error_Msg_N ("maximum value for restriction % exceeded", N);
end;
end if;
end Check_Restriction;
------------------------
-- Get_Restriction_Id --
------------------------
function Get_Restriction_Id
(N : Name_Id)
return Restriction_Id
is
J : Restriction_Id;
begin
Get_Name_String (N);
Set_Casing (All_Upper_Case);
J := Restriction_Id'First;
while J /= Not_A_Restriction_Id loop
declare
S : constant String := Restriction_Id'Image (J);
begin
exit when S = Name_Buffer (1 .. Name_Len);
end;
J := Restriction_Id'Succ (J);
end loop;
return J;
end Get_Restriction_Id;
----------------------------------
-- Get_Restriction_Parameter_Id --
----------------------------------
function Get_Restriction_Parameter_Id
(N : Name_Id)
return Restriction_Parameter_Id
is
J : Restriction_Parameter_Id;
begin
Get_Name_String (N);
Set_Casing (All_Upper_Case);
J := Restriction_Parameter_Id'First;
while J /= Not_A_Restriction_Parameter_Id loop
declare
S : constant String := Restriction_Parameter_Id'Image (J);
begin
exit when S = Name_Buffer (1 .. Name_Len);
end;
J := Restriction_Parameter_Id'Succ (J);
end loop;
return J;
end Get_Restriction_Parameter_Id;
end Restrict;
|
