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
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- A S P E C T S --
-- --
-- B o d y --
-- --
-- Copyright (C) 2010, 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 3, 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. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Atree; use Atree;
with Nlists; use Nlists;
with Sinfo; use Sinfo;
with Snames; use Snames;
with Tree_IO; use Tree_IO;
with GNAT.HTable; use GNAT.HTable;
package body Aspects is
------------------------------------------
-- Hash Table for Aspect Specifications --
------------------------------------------
type AS_Hash_Range is range 0 .. 510;
-- Size of hash table headers
function AS_Hash (F : Node_Id) return AS_Hash_Range;
-- Hash function for hash table
function AS_Hash (F : Node_Id) return AS_Hash_Range is
begin
return AS_Hash_Range (F mod 511);
end AS_Hash;
package Aspect_Specifications_Hash_Table is new
GNAT.HTable.Simple_HTable
(Header_Num => AS_Hash_Range,
Element => List_Id,
No_Element => No_List,
Key => Node_Id,
Hash => AS_Hash,
Equal => "=");
-----------------------------------------
-- Table Linking Names and Aspect_Id's --
-----------------------------------------
type Aspect_Entry is record
Nam : Name_Id;
Asp : Aspect_Id;
end record;
Aspect_Names : constant array (Integer range <>) of Aspect_Entry := (
(Name_Ada_2005, Aspect_Ada_2005),
(Name_Ada_2012, Aspect_Ada_2012),
(Name_Address, Aspect_Address),
(Name_Alignment, Aspect_Alignment),
(Name_Atomic, Aspect_Atomic),
(Name_Atomic_Components, Aspect_Atomic_Components),
(Name_Bit_Order, Aspect_Bit_Order),
(Name_Component_Size, Aspect_Component_Size),
(Name_Discard_Names, Aspect_Discard_Names),
(Name_External_Tag, Aspect_External_Tag),
(Name_Favor_Top_Level, Aspect_Favor_Top_Level),
(Name_Inline, Aspect_Inline),
(Name_Inline_Always, Aspect_Inline_Always),
(Name_Input, Aspect_Input),
(Name_Invariant, Aspect_Invariant),
(Name_Machine_Radix, Aspect_Machine_Radix),
(Name_Object_Size, Aspect_Object_Size),
(Name_Output, Aspect_Output),
(Name_Pack, Aspect_Pack),
(Name_Persistent_BSS, Aspect_Persistent_BSS),
(Name_Post, Aspect_Post),
(Name_Pre, Aspect_Pre),
(Name_Predicate, Aspect_Predicate),
(Name_Preelaborable_Initialization, Aspect_Preelaborable_Initialization),
(Name_Pure_Function, Aspect_Pure_Function),
(Name_Read, Aspect_Read),
(Name_Shared, Aspect_Shared),
(Name_Size, Aspect_Size),
(Name_Storage_Pool, Aspect_Storage_Pool),
(Name_Storage_Size, Aspect_Storage_Size),
(Name_Stream_Size, Aspect_Stream_Size),
(Name_Suppress, Aspect_Suppress),
(Name_Suppress_Debug_Info, Aspect_Suppress_Debug_Info),
(Name_Unchecked_Union, Aspect_Unchecked_Union),
(Name_Universal_Aliasing, Aspect_Universal_Aliasing),
(Name_Unmodified, Aspect_Unmodified),
(Name_Unreferenced, Aspect_Unreferenced),
(Name_Unreferenced_Objects, Aspect_Unreferenced_Objects),
(Name_Unsuppress, Aspect_Unsuppress),
(Name_Value_Size, Aspect_Value_Size),
(Name_Volatile, Aspect_Volatile),
(Name_Volatile_Components, Aspect_Volatile_Components),
(Name_Warnings, Aspect_Warnings),
(Name_Write, Aspect_Write));
-------------------------------------
-- Hash Table for Aspect Id Values --
-------------------------------------
type AI_Hash_Range is range 0 .. 112;
-- Size of hash table headers
function AI_Hash (F : Name_Id) return AI_Hash_Range;
-- Hash function for hash table
function AI_Hash (F : Name_Id) return AI_Hash_Range is
begin
return AI_Hash_Range (F mod 113);
end AI_Hash;
package Aspect_Id_Hash_Table is new
GNAT.HTable.Simple_HTable
(Header_Num => AI_Hash_Range,
Element => Aspect_Id,
No_Element => No_Aspect,
Key => Name_Id,
Hash => AI_Hash,
Equal => "=");
-------------------
-- Get_Aspect_Id --
-------------------
function Get_Aspect_Id (Name : Name_Id) return Aspect_Id is
begin
return Aspect_Id_Hash_Table.Get (Name);
end Get_Aspect_Id;
---------------------------
-- Aspect_Specifications --
---------------------------
function Aspect_Specifications (N : Node_Id) return List_Id is
begin
if Has_Aspects (N) then
return Aspect_Specifications_Hash_Table.Get (N);
else
return No_List;
end if;
end Aspect_Specifications;
------------------
-- Move_Aspects --
------------------
procedure Move_Aspects (From : Node_Id; To : Node_Id) is
pragma Assert (not Has_Aspects (To));
begin
if Has_Aspects (From) then
Set_Aspect_Specifications (To, Aspect_Specifications (From));
Aspect_Specifications_Hash_Table.Remove (From);
Set_Has_Aspects (From, False);
end if;
end Move_Aspects;
-----------------------------------
-- Permits_Aspect_Specifications --
-----------------------------------
Has_Aspect_Specifications_Flag : constant array (Node_Kind) of Boolean :=
(N_Abstract_Subprogram_Declaration => True,
N_Component_Declaration => True,
N_Entry_Declaration => True,
N_Exception_Declaration => True,
N_Formal_Abstract_Subprogram_Declaration => True,
N_Formal_Concrete_Subprogram_Declaration => True,
N_Formal_Object_Declaration => True,
N_Formal_Package_Declaration => True,
N_Formal_Type_Declaration => True,
N_Full_Type_Declaration => True,
N_Function_Instantiation => True,
N_Generic_Package_Declaration => True,
N_Generic_Subprogram_Declaration => True,
N_Object_Declaration => True,
N_Package_Declaration => True,
N_Package_Instantiation => True,
N_Private_Extension_Declaration => True,
N_Private_Type_Declaration => True,
N_Procedure_Instantiation => True,
N_Protected_Type_Declaration => True,
N_Single_Protected_Declaration => True,
N_Single_Task_Declaration => True,
N_Subprogram_Declaration => True,
N_Subtype_Declaration => True,
N_Task_Type_Declaration => True,
others => False);
function Permits_Aspect_Specifications (N : Node_Id) return Boolean is
begin
return Has_Aspect_Specifications_Flag (Nkind (N));
end Permits_Aspect_Specifications;
-------------------------------
-- Set_Aspect_Specifications --
-------------------------------
procedure Set_Aspect_Specifications (N : Node_Id; L : List_Id) is
begin
pragma Assert (Permits_Aspect_Specifications (N));
pragma Assert (not Has_Aspects (N));
pragma Assert (L /= No_List);
Set_Has_Aspects (N);
Set_Parent (L, N);
Aspect_Specifications_Hash_Table.Set (N, L);
end Set_Aspect_Specifications;
---------------
-- Tree_Read --
---------------
procedure Tree_Read is
Node : Node_Id;
List : List_Id;
begin
loop
Tree_Read_Int (Int (Node));
Tree_Read_Int (Int (List));
exit when List = No_List;
Set_Aspect_Specifications (Node, List);
end loop;
end Tree_Read;
----------------
-- Tree_Write --
----------------
procedure Tree_Write is
Node : Node_Id := Empty;
List : List_Id;
begin
Aspect_Specifications_Hash_Table.Get_First (Node, List);
loop
Tree_Write_Int (Int (Node));
Tree_Write_Int (Int (List));
exit when List = No_List;
Aspect_Specifications_Hash_Table.Get_Next (Node, List);
end loop;
end Tree_Write;
-- Package initialization sets up Aspect Id hash table
begin
for J in Aspect_Names'Range loop
Aspect_Id_Hash_Table.Set (Aspect_Names (J).Nam, Aspect_Names (J).Asp);
end loop;
end Aspects;
|
