This file is indexed.

/usr/share/ada/adainclude/gnatvsn/aspects.adb is in libgnatvsn7-dev 7.3.0-16ubuntu3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                              A S P E C T S                               --
--                                                                          --
--                                 B o d y                                  --
--                                                                          --
--          Copyright (C) 2010-2016, 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 Einfo;    use Einfo;
with Nlists;   use Nlists;
with Sinfo;    use Sinfo;
with Tree_IO;  use Tree_IO;

with GNAT.HTable;           use GNAT.HTable;

package body Aspects is

   --  The following array indicates aspects that a subtype inherits from its
   --  base type. True means that the subtype inherits the aspect from its base
   --  type. False means it is not inherited.

   Base_Aspect : constant array (Aspect_Id) of Boolean :=
     (Aspect_Atomic                  => True,
      Aspect_Atomic_Components       => True,
      Aspect_Constant_Indexing       => True,
      Aspect_Default_Iterator        => True,
      Aspect_Discard_Names           => True,
      Aspect_Independent_Components  => True,
      Aspect_Iterator_Element        => True,
      Aspect_Type_Invariant          => True,
      Aspect_Unchecked_Union         => True,
      Aspect_Variable_Indexing       => True,
      Aspect_Volatile                => True,
      Aspect_Volatile_Full_Access    => True,
      others                         => False);

   --  The following array indicates type aspects that are inherited and apply
   --  to the class-wide type as well.

   Inherited_Aspect : constant array (Aspect_Id) of Boolean :=
     (Aspect_Constant_Indexing    => True,
      Aspect_Default_Iterator     => True,
      Aspect_Implicit_Dereference => True,
      Aspect_Iterator_Element     => True,
      Aspect_Remote_Types         => True,
      Aspect_Variable_Indexing    => True,
      others                      => False);

   procedure Set_Aspect_Specifications_No_Check (N : Node_Id; L : List_Id);
   --  Same as Set_Aspect_Specifications, but does not contain the assertion
   --  that checks that N does not already have aspect specifications. This
   --  subprogram is supposed to be used as a part of Tree_Read. When reading
   --  tree, first read nodes with their basic properties (as Atree.Tree_Read),
   --  this includes reading the Has_Aspects flag for each node, then we reed
   --  all the list tables and only after that we call Tree_Read for Aspects.
   --  That is, when reading the tree, the list of aspects is attached to the
   --  node that already has Has_Aspects flag set ON.

   ------------------------------------------
   -- 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      => "=");

   -------------------------------------
   -- 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      => "=");

   ---------------------------
   -- 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;

   --------------------------------
   -- Aspects_On_Body_Or_Stub_OK --
   --------------------------------

   function Aspects_On_Body_Or_Stub_OK (N : Node_Id) return Boolean is
      Aspect  : Node_Id;
      Aspects : List_Id;

   begin
      --  The routine should be invoked on a body [stub] with aspects

      pragma Assert (Has_Aspects (N));
      pragma Assert (Nkind (N) in N_Body_Stub
                       or else Nkind_In (N, N_Entry_Body,
                                            N_Package_Body,
                                            N_Protected_Body,
                                            N_Subprogram_Body,
                                            N_Task_Body));

      --  Look through all aspects and see whether they can be applied to a
      --  body [stub].

      Aspects := Aspect_Specifications (N);
      Aspect  := First (Aspects);
      while Present (Aspect) loop
         if not Aspect_On_Body_Or_Stub_OK (Get_Aspect_Id (Aspect)) then
            return False;
         end if;

         Next (Aspect);
      end loop;

      return True;
   end Aspects_On_Body_Or_Stub_OK;

   ----------------------
   -- Exchange_Aspects --
   ----------------------

   procedure Exchange_Aspects (N1 : Node_Id; N2 : Node_Id) is
   begin
      pragma Assert
        (Permits_Aspect_Specifications (N1)
           and then Permits_Aspect_Specifications (N2));

      --  Perform the exchange only when both nodes have lists to be swapped

      if Has_Aspects (N1) and then Has_Aspects (N2) then
         declare
            L1 : constant List_Id := Aspect_Specifications (N1);
            L2 : constant List_Id := Aspect_Specifications (N2);
         begin
            Set_Parent (L1, N2);
            Set_Parent (L2, N1);
            Aspect_Specifications_Hash_Table.Set (N1, L2);
            Aspect_Specifications_Hash_Table.Set (N2, L1);
         end;
      end if;
   end Exchange_Aspects;

   -----------------
   -- Find_Aspect --
   -----------------

   function Find_Aspect (Id : Entity_Id; A : Aspect_Id) return Node_Id is
      Decl  : Node_Id;
      Item  : Node_Id;
      Owner : Entity_Id;
      Spec  : Node_Id;

   begin
      Owner := Id;

      --  Handle various cases of base or inherited aspects for types

      if Is_Type (Id) then
         if Base_Aspect (A) then
            Owner := Base_Type (Owner);
         end if;

         if Is_Class_Wide_Type (Owner) and then Inherited_Aspect (A) then
            Owner := Root_Type (Owner);
         end if;

         if Is_Private_Type (Owner) and then Present (Full_View (Owner)) then
            Owner := Full_View (Owner);
         end if;
      end if;

      --  Search the representation items for the desired aspect

      Item := First_Rep_Item (Owner);
      while Present (Item) loop
         if Nkind (Item) = N_Aspect_Specification
           and then Get_Aspect_Id (Item) = A
         then
            return Item;
         end if;

         Next_Rep_Item (Item);
      end loop;

      --  Note that not all aspects are added to the chain of representation
      --  items. In such cases, search the list of aspect specifications. First
      --  find the declaration node where the aspects reside. This is usually
      --  the parent or the parent of the parent.

      Decl := Parent (Owner);
      if not Permits_Aspect_Specifications (Decl) then
         Decl := Parent (Decl);
      end if;

      --  Search the list of aspect specifications for the desired aspect

      if Permits_Aspect_Specifications (Decl) then
         Spec := First (Aspect_Specifications (Decl));
         while Present (Spec) loop
            if Get_Aspect_Id (Spec) = A then
               return Spec;
            end if;

            Next (Spec);
         end loop;
      end if;

      --  The entity does not carry any aspects or the desired aspect was not
      --  found.

      return Empty;
   end Find_Aspect;

   --------------------------
   -- Find_Value_Of_Aspect --
   --------------------------

   function Find_Value_Of_Aspect
     (Id : Entity_Id;
      A  : Aspect_Id) return Node_Id
   is
      Spec : constant Node_Id := Find_Aspect (Id, A);

   begin
      if Present (Spec) then
         if A = Aspect_Default_Iterator then
            return Expression (Aspect_Rep_Item (Spec));
         else
            return Expression (Spec);
         end if;
      end if;

      return Empty;
   end Find_Value_Of_Aspect;

   -------------------
   -- 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;

   function Get_Aspect_Id (Aspect : Node_Id) return Aspect_Id is
   begin
      pragma Assert (Nkind (Aspect) = N_Aspect_Specification);
      return Aspect_Id_Hash_Table.Get (Chars (Identifier (Aspect)));
   end Get_Aspect_Id;

   ----------------
   -- Has_Aspect --
   ----------------

   function Has_Aspect (Id : Entity_Id; A : Aspect_Id) return Boolean is
   begin
      return Present (Find_Aspect (Id, A));
   end Has_Aspect;

   ------------------
   -- 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;

   ---------------------------
   -- Move_Or_Merge_Aspects --
   ---------------------------

   procedure Move_Or_Merge_Aspects (From : Node_Id; To : Node_Id) is
      procedure Relocate_Aspect (Asp : Node_Id);
      --  Move aspect specification Asp to the aspect specifications of node To

      ---------------------
      -- Relocate_Aspect --
      ---------------------

      procedure Relocate_Aspect (Asp : Node_Id) is
         Asps : List_Id;

      begin
         if Has_Aspects (To) then
            Asps := Aspect_Specifications (To);

         --  Create a new aspect specification list for node To

         else
            Asps := New_List;
            Set_Aspect_Specifications (To, Asps);
            Set_Has_Aspects (To);
         end if;

         --  Remove the aspect from its original owner and relocate it to node
         --  To.

         Remove (Asp);
         Append (Asp, Asps);
      end Relocate_Aspect;

      --  Local variables

      Asp      : Node_Id;
      Asp_Id   : Aspect_Id;
      Next_Asp : Node_Id;

   --  Start of processing for Move_Or_Merge_Aspects

   begin
      if Has_Aspects (From) then
         Asp := First (Aspect_Specifications (From));
         while Present (Asp) loop

            --  Store the next aspect now as a potential relocation will alter
            --  the contents of the list.

            Next_Asp := Next (Asp);

            --  When moving or merging aspects from a subprogram body stub that
            --  also acts as a spec, relocate only those aspects that may apply
            --  to a body [stub]. Note that a precondition must also be moved
            --  to the proper body as the pre/post machinery expects it to be
            --  there.

            if Nkind (From) = N_Subprogram_Body_Stub
              and then No (Corresponding_Spec_Of_Stub (From))
            then
               Asp_Id := Get_Aspect_Id (Asp);

               if Aspect_On_Body_Or_Stub_OK (Asp_Id)
                 or else Asp_Id = Aspect_Pre
                 or else Asp_Id = Aspect_Precondition
               then
                  Relocate_Aspect (Asp);
               end if;

            --  When moving or merging aspects from a single concurrent type
            --  declaration, relocate only those aspects that may apply to the
            --  anonymous object created for the type.

            --  Note: It is better to use Is_Single_Concurrent_Type_Declaration
            --  here, but Aspects and Sem_Util have incompatible licenses.

            elsif Nkind_In
                    (Original_Node (From), N_Single_Protected_Declaration,
                                           N_Single_Task_Declaration)
            then
               Asp_Id := Get_Aspect_Id (Asp);

               if Aspect_On_Anonymous_Object_OK (Asp_Id) then
                  Relocate_Aspect (Asp);
               end if;

            --  Default case - relocate the aspect to its new owner

            else
               Relocate_Aspect (Asp);
            end if;

            Asp := Next_Asp;
         end loop;

         --  The relocations may have left node From's aspect specifications
         --  list empty. If this is the case, simply remove the aspects.

         if Is_Empty_List (Aspect_Specifications (From)) then
            Remove_Aspects (From);
         end if;
      end if;
   end Move_Or_Merge_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_Body                             => True,
      N_Entry_Declaration                      => True,
      N_Exception_Declaration                  => True,
      N_Exception_Renaming_Declaration         => True,
      N_Expression_Function                    => 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_Renaming_Declaration           => True,
      N_Generic_Subprogram_Declaration         => True,
      N_Object_Declaration                     => True,
      N_Object_Renaming_Declaration            => True,
      N_Package_Body                           => True,
      N_Package_Body_Stub                      => True,
      N_Package_Declaration                    => True,
      N_Package_Instantiation                  => True,
      N_Package_Specification                  => True,
      N_Package_Renaming_Declaration           => True,
      N_Private_Extension_Declaration          => True,
      N_Private_Type_Declaration               => True,
      N_Procedure_Instantiation                => True,
      N_Protected_Body                         => True,
      N_Protected_Body_Stub                    => True,
      N_Protected_Type_Declaration             => True,
      N_Single_Protected_Declaration           => True,
      N_Single_Task_Declaration                => True,
      N_Subprogram_Body                        => True,
      N_Subprogram_Body_Stub                   => True,
      N_Subprogram_Declaration                 => True,
      N_Subprogram_Renaming_Declaration        => True,
      N_Subtype_Declaration                    => True,
      N_Task_Body                              => True,
      N_Task_Body_Stub                         => 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;

   --------------------
   -- Remove_Aspects --
   --------------------

   procedure Remove_Aspects (N : Node_Id) is
   begin
      if Has_Aspects (N) then
         Aspect_Specifications_Hash_Table.Remove (N);
         Set_Has_Aspects (N, False);
      end if;
   end Remove_Aspects;

   -----------------
   -- Same_Aspect --
   -----------------

   --  Table used for Same_Aspect, maps aspect to canonical aspect

   Canonical_Aspect : constant array (Aspect_Id) of Aspect_Id :=
   (No_Aspect                           => No_Aspect,
    Aspect_Abstract_State               => Aspect_Abstract_State,
    Aspect_Address                      => Aspect_Address,
    Aspect_Alignment                    => Aspect_Alignment,
    Aspect_All_Calls_Remote             => Aspect_All_Calls_Remote,
    Aspect_Annotate                     => Aspect_Annotate,
    Aspect_Async_Readers                => Aspect_Async_Readers,
    Aspect_Async_Writers                => Aspect_Async_Writers,
    Aspect_Asynchronous                 => Aspect_Asynchronous,
    Aspect_Atomic                       => Aspect_Atomic,
    Aspect_Atomic_Components            => Aspect_Atomic_Components,
    Aspect_Attach_Handler               => Aspect_Attach_Handler,
    Aspect_Bit_Order                    => Aspect_Bit_Order,
    Aspect_Component_Size               => Aspect_Component_Size,
    Aspect_Constant_After_Elaboration   => Aspect_Constant_After_Elaboration,
    Aspect_Constant_Indexing            => Aspect_Constant_Indexing,
    Aspect_Contract_Cases               => Aspect_Contract_Cases,
    Aspect_Convention                   => Aspect_Convention,
    Aspect_CPU                          => Aspect_CPU,
    Aspect_Default_Component_Value      => Aspect_Default_Component_Value,
    Aspect_Default_Initial_Condition    => Aspect_Default_Initial_Condition,
    Aspect_Default_Iterator             => Aspect_Default_Iterator,
    Aspect_Default_Storage_Pool         => Aspect_Default_Storage_Pool,
    Aspect_Default_Value                => Aspect_Default_Value,
    Aspect_Depends                      => Aspect_Depends,
    Aspect_Dimension                    => Aspect_Dimension,
    Aspect_Dimension_System             => Aspect_Dimension_System,
    Aspect_Disable_Controlled           => Aspect_Disable_Controlled,
    Aspect_Discard_Names                => Aspect_Discard_Names,
    Aspect_Dispatching_Domain           => Aspect_Dispatching_Domain,
    Aspect_Dynamic_Predicate            => Aspect_Predicate,
    Aspect_Effective_Reads              => Aspect_Effective_Reads,
    Aspect_Effective_Writes             => Aspect_Effective_Writes,
    Aspect_Elaborate_Body               => Aspect_Elaborate_Body,
    Aspect_Export                       => Aspect_Export,
    Aspect_Extensions_Visible           => Aspect_Extensions_Visible,
    Aspect_External_Name                => Aspect_External_Name,
    Aspect_External_Tag                 => Aspect_External_Tag,
    Aspect_Favor_Top_Level              => Aspect_Favor_Top_Level,
    Aspect_Ghost                        => Aspect_Ghost,
    Aspect_Global                       => Aspect_Global,
    Aspect_Implicit_Dereference         => Aspect_Implicit_Dereference,
    Aspect_Import                       => Aspect_Import,
    Aspect_Independent                  => Aspect_Independent,
    Aspect_Independent_Components       => Aspect_Independent_Components,
    Aspect_Inline                       => Aspect_Inline,
    Aspect_Inline_Always                => Aspect_Inline,
    Aspect_Initial_Condition            => Aspect_Initial_Condition,
    Aspect_Initializes                  => Aspect_Initializes,
    Aspect_Input                        => Aspect_Input,
    Aspect_Interrupt_Handler            => Aspect_Interrupt_Handler,
    Aspect_Interrupt_Priority           => Aspect_Priority,
    Aspect_Invariant                    => Aspect_Invariant,
    Aspect_Iterable                     => Aspect_Iterable,
    Aspect_Iterator_Element             => Aspect_Iterator_Element,
    Aspect_Link_Name                    => Aspect_Link_Name,
    Aspect_Linker_Section               => Aspect_Linker_Section,
    Aspect_Lock_Free                    => Aspect_Lock_Free,
    Aspect_Machine_Radix                => Aspect_Machine_Radix,
    Aspect_Max_Queue_Length             => Aspect_Max_Queue_Length,
    Aspect_No_Elaboration_Code_All      => Aspect_No_Elaboration_Code_All,
    Aspect_No_Return                    => Aspect_No_Return,
    Aspect_No_Tagged_Streams            => Aspect_No_Tagged_Streams,
    Aspect_Obsolescent                  => Aspect_Obsolescent,
    Aspect_Object_Size                  => Aspect_Object_Size,
    Aspect_Output                       => Aspect_Output,
    Aspect_Pack                         => Aspect_Pack,
    Aspect_Part_Of                      => Aspect_Part_Of,
    Aspect_Persistent_BSS               => Aspect_Persistent_BSS,
    Aspect_Post                         => Aspect_Post,
    Aspect_Postcondition                => Aspect_Post,
    Aspect_Pre                          => Aspect_Pre,
    Aspect_Precondition                 => Aspect_Pre,
    Aspect_Predicate                    => Aspect_Predicate,
    Aspect_Predicate_Failure            => Aspect_Predicate_Failure,
    Aspect_Preelaborate                 => Aspect_Preelaborate,
    Aspect_Preelaborable_Initialization => Aspect_Preelaborable_Initialization,
    Aspect_Priority                     => Aspect_Priority,
    Aspect_Pure                         => Aspect_Pure,
    Aspect_Pure_Function                => Aspect_Pure_Function,
    Aspect_Refined_Depends              => Aspect_Refined_Depends,
    Aspect_Refined_Global               => Aspect_Refined_Global,
    Aspect_Refined_Post                 => Aspect_Refined_Post,
    Aspect_Refined_State                => Aspect_Refined_State,
    Aspect_Remote_Access_Type           => Aspect_Remote_Access_Type,
    Aspect_Remote_Call_Interface        => Aspect_Remote_Call_Interface,
    Aspect_Remote_Types                 => Aspect_Remote_Types,
    Aspect_Read                         => Aspect_Read,
    Aspect_Relative_Deadline            => Aspect_Relative_Deadline,
    Aspect_Scalar_Storage_Order         => Aspect_Scalar_Storage_Order,
    Aspect_Secondary_Stack_Size         => Aspect_Secondary_Stack_Size,
    Aspect_Shared                       => Aspect_Atomic,
    Aspect_Shared_Passive               => Aspect_Shared_Passive,
    Aspect_Simple_Storage_Pool          => Aspect_Simple_Storage_Pool,
    Aspect_Simple_Storage_Pool_Type     => Aspect_Simple_Storage_Pool_Type,
    Aspect_Size                         => Aspect_Size,
    Aspect_Small                        => Aspect_Small,
    Aspect_SPARK_Mode                   => Aspect_SPARK_Mode,
    Aspect_Static_Predicate             => Aspect_Predicate,
    Aspect_Storage_Pool                 => Aspect_Storage_Pool,
    Aspect_Storage_Size                 => Aspect_Storage_Size,
    Aspect_Stream_Size                  => Aspect_Stream_Size,
    Aspect_Suppress                     => Aspect_Suppress,
    Aspect_Suppress_Debug_Info          => Aspect_Suppress_Debug_Info,
    Aspect_Suppress_Initialization      => Aspect_Suppress_Initialization,
    Aspect_Synchronization              => Aspect_Synchronization,
    Aspect_Test_Case                    => Aspect_Test_Case,
    Aspect_Thread_Local_Storage         => Aspect_Thread_Local_Storage,
    Aspect_Type_Invariant               => Aspect_Invariant,
    Aspect_Unchecked_Union              => Aspect_Unchecked_Union,
    Aspect_Unimplemented                => Aspect_Unimplemented,
    Aspect_Universal_Aliasing           => Aspect_Universal_Aliasing,
    Aspect_Universal_Data               => Aspect_Universal_Data,
    Aspect_Unmodified                   => Aspect_Unmodified,
    Aspect_Unreferenced                 => Aspect_Unreferenced,
    Aspect_Unreferenced_Objects         => Aspect_Unreferenced_Objects,
    Aspect_Unsuppress                   => Aspect_Unsuppress,
    Aspect_Variable_Indexing            => Aspect_Variable_Indexing,
    Aspect_Value_Size                   => Aspect_Value_Size,
    Aspect_Volatile                     => Aspect_Volatile,
    Aspect_Volatile_Components          => Aspect_Volatile_Components,
    Aspect_Volatile_Full_Access         => Aspect_Volatile_Full_Access,
    Aspect_Volatile_Function            => Aspect_Volatile_Function,
    Aspect_Warnings                     => Aspect_Warnings,
    Aspect_Write                        => Aspect_Write);

   function Same_Aspect (A1 : Aspect_Id; A2 : Aspect_Id) return Boolean is
   begin
      return Canonical_Aspect (A1) = Canonical_Aspect (A2);
   end Same_Aspect;

   -------------------------------
   -- 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;

   ----------------------------------------
   -- Set_Aspect_Specifications_No_Check --
   ----------------------------------------

   procedure Set_Aspect_Specifications_No_Check (N : Node_Id; L : List_Id) is
   begin
      pragma Assert (Permits_Aspect_Specifications (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_No_Check;

   ---------------
   -- 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_No_Check (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_Id loop
      Aspect_Id_Hash_Table.Set (Aspect_Names (J), J);
   end loop;
end Aspects;