gcc/ada/atree.ads

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                                A T R E E                                 --
   6 --                                                                          --
   7 --                                 S p e c                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2009, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 3,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.                                     --
  17 --                                                                          --
  18 -- As a special exception under Section 7 of GPL version 3, you are granted --
  19 -- additional permissions described in the GCC Runtime Library Exception,   --
  20 -- version 3.1, as published by the Free Software Foundation.               --
  21 --                                                                          --
  22 -- You should have received a copy of the GNU General Public License and    --
  23 -- a copy of the GCC Runtime Library Exception along with this program;     --
  24 -- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
  25 -- <http://www.gnu.org/licenses/>.                                          --
  26 --                                                                          --
  27 -- GNAT was originally developed  by the GNAT team at  New York University. --
  28 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  29 --                                                                          --
  30 ------------------------------------------------------------------------------
  31
  32 with Alloc;
  33 with Sinfo;  use Sinfo;
  34 with Einfo;  use Einfo;
  35 with Namet;  use Namet;
  36 with Types;  use Types;
  37 with Snames; use Snames;
  38 with System; use System;
  39 with Table;
  40 with Uintp;  use Uintp;
  41 with Urealp; use Urealp;
  42 with Unchecked_Conversion;
  43
  44 package Atree is
  45
  46 --  This package defines the format of the tree used to represent the Ada
  47 --  program internally. Syntactic and semantic information is combined in
  48 --  this tree. There is no separate symbol table structure.
  49
  50 --  WARNING: There is a C version of this package. Any changes to this
  51 --  source file must be properly reflected in the C header file atree.h
  52
  53 --  Package Atree defines the basic structure of the tree and its nodes and
  54 --  provides the basic abstract interface for manipulating the tree. Two
  55 --  other packages use this interface to define the representation of Ada
  56 --  programs using this tree format. The package Sinfo defines the basic
  57 --  representation of the syntactic structure of the program, as output
  58 --  by the parser. The package Entity_Info defines the semantic information
  59 --  which is added to the tree nodes that represent declared entities (i.e.
  60 --  the information which might typically be described in a separate symbol
  61 --  table structure).
  62
  63 --  The front end of the compiler first parses the program and generates a
  64 --  tree that is simply a syntactic representation of the program in abstract
  65 --  syntax tree format. Subsequent processing in the front end traverses the
  66 --  tree, transforming it in various ways and adding semantic information.
  67
  68    ----------------------------------------
  69    -- Definitions of Fields in Tree Node --
  70    ----------------------------------------
  71
  72    --  The representation of the tree is completely hidden, using a functional
  73    --  interface for accessing and modifying the contents of nodes. Logically
  74    --  a node contains a number of fields, much as though the nodes were
  75    --  defined as a record type. The fields in a node are as follows:
  76
  77    --   Nkind         Indicates the kind of the node. This field is present
  78    --                 in all nodes. The type is Node_Kind, which is declared
  79    --                 in the package Sinfo.
  80
  81    --   Sloc          Location (Source_Ptr) of the corresponding token
  82    --                 in the Source buffer. The individual node definitions
  83    --                 show which token is referenced by this pointer.
  84
  85    --   In_List       A flag used to indicate if the node is a member
  86    --                 of a node list.
  87
  88    --   Rewrite_Sub   A flag set if the node has been rewritten using
  89    --                 the Rewrite procedure. The original value of the
  90    --                 node is retrievable with Original_Node.
  91
  92    --   Rewrite_Ins   A flag set if a node is marked as a rewrite inserted
  93    --                 node as a result of a call to Mark_Rewrite_Insertion.
  94
  95    --   Paren_Count   A 2-bit count used in sub-expression nodes to indicate
  96    --                 the level of parentheses. The settings are 0,1,2 and
  97    --                 3 for many. If the value is 3, then an auxiliary table
  98    --                 is used to indicate the real value. Set to zero for
  99    --                 non-subexpression nodes.
 100
 101    --   Comes_From_Source
 102    --                 This flag is present in all nodes. It is set if the
 103    --                 node is built by the scanner or parser, and clear if
 104    --                 the node is built by the analyzer or expander. It
 105    --                 indicates that the node corresponds to a construct
 106    --                 that appears in the original source program.
 107
 108    --   Analyzed      This flag is present in all nodes. It is set when
 109    --                 a node is analyzed, and is used to avoid analyzing
 110    --                 the same node twice. Analysis includes expansion if
 111    --                 expansion is active, so in this case if the flag is
 112    --                 set it means the node has been analyzed and expanded.
 113
 114    --   Error_Posted  This flag is present in all nodes. It is set when
 115    --                 an error message is posted which is associated with
 116    --                 the flagged node. This is used to avoid posting more
 117    --                 than one message on the same node.
 118
 119    --   Field1
 120    --   Field2
 121    --   Field3
 122    --   Field4
 123    --   Field5        Five fields holding Union_Id values
 124
 125    --   ElistN        Synonym for FieldN typed as Elist_Id (Empty = No_Elist)
 126    --   ListN         Synonym for FieldN typed as List_Id
 127    --   NameN         Synonym for FieldN typed as Name_Id
 128    --   NodeN         Synonym for FieldN typed as Node_Id
 129    --   StrN          Synonym for FieldN typed as String_Id
 130    --   UintN         Synonym for FieldN typed as Uint (Empty = Uint_0)
 131    --   UrealN        Synonym for FieldN typed as Ureal
 132
 133    --   Note: in the case of ElistN and UintN fields, it is common that we
 134    --   end up with a value of Union_Id'(0) as the default value. This value
 135    --   is meaningless as a Uint or Elist_Id value. We have two choices here.
 136    --   We could require that all Uint and Elist fields be initialized to an
 137    --   appropriate value, but that's error prone, since it would be easy to
 138    --   miss an initialization. So instead we have the retrieval functions
 139    --   generate an appropriate default value (Uint_0 or No_Elist). Probably
 140    --   it would be cleaner to generate No_Uint in the Uint case but we got
 141    --   stuck with representing an "unset" size value as zero early on, and
 142    --   it will take a bit of fiddling to change that ???
 143
 144    --   Note: the actual usage of FieldN (i.e. whether it contains a Elist_Id,
 145    --   List_Id, Name_Id, Node_Id, String_Id, Uint or Ureal) depends on the
 146    --   value in Nkind. Generally the access to this field is always via the
 147    --   functional interface, so the field names ElistN, ListN, NameN, NodeN,
 148    --   StrN, UintN and UrealN are used only in the bodies of the access
 149    --   functions (i.e. in the bodies of Sinfo and Einfo). These access
 150    --   functions contain debugging code that checks that the use is
 151    --   consistent with Nkind and Ekind values.
 152
 153    --   However, in specialized circumstances (examples are the circuit in
 154    --   generic instantiation to copy trees, and in the tree dump routine),
 155    --   it is useful to be able to do untyped traversals, and an internal
 156    --   package in Atree allows for direct untyped accesses in such cases.
 157
 158    --   Flag4         Fifteen Boolean flags (use depends on Nkind and
 159    --   Flag5         Ekind, as described for FieldN). Again the access
 160    --   Flag6         is usually via subprograms in Sinfo and Einfo which
 161    --   Flag7         provide high-level synonyms for these flags, and
 162    --   Flag8         contain debugging code that checks that the values
 163    --   Flag9         in Nkind and Ekind are appropriate for the access.
 164    --   Flag10
 165    --   Flag11        Note that Flag1-3 are missing from this list. The
 166    --   Flag12        first three flag positions are reserved for the
 167    --   Flag13        standard flags (Comes_From_Source, Error_Posted,
 168    --   Flag14        and Analyzed)
 169    --   Flag15
 170    --   Flag16
 171    --   Flag17
 172    --   Flag18
 173
 174    --   Link          For a node, points to the Parent. For a list, points
 175    --                 to the list header. Note that in the latter case, a
 176    --                 client cannot modify the link field. This field is
 177    --                 private to the Atree package (but is also modified
 178    --                 by the Nlists package).
 179
 180    --  The following additional fields are present in extended nodes used
 181    --  for entities (Nkind in N_Entity).
 182
 183    --   Ekind         Entity type. This field indicates the type of the
 184    --                 entity, it is of type Entity_Kind which is defined
 185    --                 in package Einfo.
 186
 187    --   Flag19        229 additional flags
 188    --   ...
 189    --   Flag247
 190
 191    --   Convention    Entity convention (Convention_Id value)
 192
 193    --   Field6        Additional Union_Id value stored in tree
 194
 195    --   Node6         Synonym for Field6 typed as Node_Id
 196    --   Elist6        Synonym for Field6 typed as Elist_Id (Empty = No_Elist)
 197    --   Uint6         Synonym for Field6 typed as Uint (Empty = Uint_0)
 198
 199    --   Similar definitions for Field7 to Field28 (and Node7-Node28,
 200    --   Elist7-Elist28, Uint7-Uint28, Ureal7-Ureal28). Note that not all
 201    --   these functions are defined, only the ones that are actually used.
 202
 203    function Last_Node_Id return Node_Id;
 204    pragma Inline (Last_Node_Id);
 205    --  Returns Id of last allocated node Id
 206
 207    function Nodes_Address return System.Address;
 208    --  Return address of Nodes table (used in Back_End for Gigi call)
 209
 210    function Num_Nodes return Nat;
 211    --  Total number of nodes allocated, where an entity counts as a single
 212    --  node. This count is incremented every time a node or entity is
 213    --  allocated, and decremented every time a node or entity is deleted.
 214    --  This value is used by Xref and by Treepr to allocate hash tables of
 215    --  suitable size for hashing Node_Id values.
 216
 217    -----------------------
 218    -- Use of Empty Node --
 219    -----------------------
 220
 221    --  The special Node_Id Empty is used to mark missing fields. Whenever the
 222    --  syntax has an optional component, then the corresponding field will be
 223    --  set to Empty if the component is missing.
 224
 225    --  Note: Empty is not used to describe an empty list. Instead in this
 226    --  case the node field contains a list which is empty, and these cases
 227    --  should be distinguished (essentially from a type point of view, Empty
 228    --  is a Node, and is thus not a list).
 229
 230    --  Note: Empty does in fact correspond to an allocated node. Only the
 231    --  Nkind field of this node may be referenced. It contains N_Empty, which
 232    --  uniquely identifies the empty case. This allows the Nkind field to be
 233    --  dereferenced before the check for Empty which is sometimes useful.
 234
 235    -----------------------
 236    -- Use of Error Node --
 237    -----------------------
 238
 239    --  The Error node is used during syntactic and semantic analysis to
 240    --  indicate that the corresponding piece of syntactic structure or
 241    --  semantic meaning cannot properly be represented in the tree because
 242    --  of an illegality in the program.
 243
 244    --  If an Error node is encountered, then you know that a previous
 245    --  illegality has been detected. The proper reaction should be to
 246    --  avoid posting related cascaded error messages, and to propagate
 247    --  the error node if necessary.
 248
 249    ------------------------
 250    -- Current_Error_Node --
 251    ------------------------
 252
 253    --  The current error node is a global location indicating the current
 254    --  node that is being processed for the purposes of placing a compiler
 255    --  abort message. This is not necessarily perfectly accurate, it is
 256    --  just a reasonably accurate best guess. It is used to output the
 257    --  source location in the abort message by Comperr, and also to
 258    --  implement the d3 debugging flag. This is also used by Rtsfind
 259    --  to generate error messages for high integrity mode.
 260
 261    --  There are two ways this gets set. During parsing, when new source
 262    --  nodes are being constructed by calls to New_Node and New_Entity,
 263    --  either one of these calls sets Current_Error_Node to the newly
 264    --  created node. During semantic analysis, this mechanism is not
 265    --  used, and instead Current_Error_Node is set by the subprograms in
 266    --  Debug_A that mark the start and end of analysis/expansion of a
 267    --  node in the tree.
 268
 269    Current_Error_Node : Node_Id;
 270    --  Node to place error messages
 271
 272    -------------------------------
 273    -- Default Setting of Fields --
 274    -------------------------------
 275
 276    --  Nkind is set to N_Unused_At_Start
 277
 278    --  Ekind is set to E_Void
 279
 280    --  Sloc is always set, there is no default value
 281
 282    --  Field1-5 fields are set to Empty
 283
 284    --  Field6-22 fields in extended nodes are set to Empty
 285
 286    --  Parent is set to Empty
 287
 288    --  All Boolean flag fields are set to False
 289
 290    --  Note: the value Empty is used in Field1-Field17 to indicate a null node.
 291    --  The usage varies. The common uses are to indicate absence of an
 292    --  optional clause or a completely unused Field1-17 field.
 293
 294    -------------------------------------
 295    -- Use of Synonyms for Node Fields --
 296    -------------------------------------
 297
 298    --  A subpackage Atree.Unchecked_Access provides routines for reading and
 299    --  writing the fields defined above (Field1-27, Node1-27, Flag1-247 etc).
 300    --  These unchecked access routines can be used for untyped traversals.
 301    --  In addition they are used in the implementations of the Sinfo and
 302    --  Einfo packages. These packages both provide logical synonyms for
 303    --  the generic fields, together with an appropriate set of access routines.
 304    --  Normally access to information within tree nodes uses these synonyms,
 305    --  providing a high level typed interface to the tree information.
 306
 307    --------------------------------------------------
 308    -- Node Allocation and Modification Subprograms --
 309    --------------------------------------------------
 310
 311    --  Generally the parser builds the tree and then it is further decorated
 312    --  (e.g. by setting the entity fields), but not fundamentally modified.
 313    --  However, there are cases in which the tree must be restructured by
 314    --  adding and rearranging nodes, as a result of disambiguating cases
 315    --  which the parser could not parse correctly, and adding additional
 316    --  semantic information (e.g. making constraint checks explicit). The
 317    --  following subprograms are used for constructing the tree in the first
 318    --  place, and then for subsequent modifications as required.
 319
 320    procedure Initialize;
 321    --  Called at the start of compilation to initialize the allocation of
 322    --  the node and list tables and make the standard entries for Empty,
 323    --  Error and Error_List. Note that Initialize must not be called if
 324    --  Tree_Read is used.
 325
 326    procedure Lock;
 327    --  Called before the back end is invoked to lock the nodes table
 328    --  Also called after Unlock to relock???
 329
 330    procedure Unlock;
 331    --  Unlocks nodes table, in cases where the back end needs to modify it
 332
 333    procedure Tree_Read;
 334    --  Initializes internal tables from current tree file using the relevant
 335    --  Table.Tree_Read routines. Note that Initialize should not be called if
 336    --  Tree_Read is used. Tree_Read includes all necessary initialization.
 337
 338    procedure Tree_Write;
 339    --  Writes out internal tables to current tree file using the relevant
 340    --  Table.Tree_Write routines.
 341
 342    function New_Node
 343      (New_Node_Kind : Node_Kind;
 344       New_Sloc      : Source_Ptr) return Node_Id;
 345    --  Allocates a completely new node with the given node type and source
 346    --  location values. All other fields are set to their standard defaults:
 347    --
 348    --    Empty for all FieldN fields
 349    --    False for all FlagN fields
 350    --
 351    --  The usual approach is to build a new node using this function and
 352    --  then, using the value returned, use the Set_xxx functions to set
 353    --  fields of the node as required. New_Node can only be used for
 354    --  non-entity nodes, i.e. it never generates an extended node.
 355    --
 356    --  If we are currently parsing, as indicated by a previous call to
 357    --  Set_Comes_From_Source_Default (True), then this call also resets
 358    --  the value of Current_Error_Node.
 359
 360    function New_Entity
 361      (New_Node_Kind : Node_Kind;
 362       New_Sloc      : Source_Ptr) return Entity_Id;
 363    --  Similar to New_Node, except that it is used only for entity nodes
 364    --  and returns an extended node.
 365
 366    procedure Set_Comes_From_Source_Default (Default : Boolean);
 367    --  Sets value of Comes_From_Source flag to be used in all subsequent
 368    --  New_Node and New_Entity calls until another call to this procedure
 369    --  changes the default. This value is set True during parsing and
 370    --  False during semantic analysis. This is also used to determine
 371    --  if New_Node and New_Entity should set Current_Error_Node.
 372
 373    function Get_Comes_From_Source_Default return Boolean;
 374    pragma Inline (Get_Comes_From_Source_Default);
 375    --  Gets the current value of the Comes_From_Source flag
 376
 377    procedure Preserve_Comes_From_Source (NewN, OldN : Node_Id);
 378    pragma Inline (Preserve_Comes_From_Source);
 379    --  When a node is rewritten, it is sometimes appropriate to preserve the
 380    --  original comes from source indication. This is true when the rewrite
 381    --  essentially corresponds to a transformation corresponding exactly to
 382    --  semantics in the reference manual. This procedure copies the setting
 383    --  of Comes_From_Source from OldN to NewN.
 384
 385    function Has_Extension (N : Node_Id) return Boolean;
 386    pragma Inline (Has_Extension);
 387    --  Returns True if the given node has an extension (i.e. was created by
 388    --  a call to New_Entity rather than New_Node, and Nkind is in N_Entity)
 389
 390    procedure Change_Node (N : Node_Id; New_Node_Kind : Node_Kind);
 391    --  This procedure replaces the given node by setting its Nkind field to
 392    --  the indicated value and resetting all other fields to their default
 393    --  values except for Sloc, which is unchanged, and the Parent pointer
 394    --  and list links, which are also unchanged. All other information in
 395    --  the original node is lost. The new node has an extension if the
 396    --  original node had an extension.
 397
 398    procedure Copy_Node (Source : Node_Id; Destination : Node_Id);
 399    --  Copy the entire contents of the source node to the destination node.
 400    --  The contents of the source node is not affected. If the source node
 401    --  has an extension, then the destination must have an extension also.
 402    --  The parent pointer of the destination and its list link, if any, are
 403    --  not affected by the copy. Note that parent pointers of descendents
 404    --  are not adjusted, so the descendents of the destination node after
 405    --  the Copy_Node is completed have dubious parent pointers.
 406
 407    function New_Copy (Source : Node_Id) return Node_Id;
 408    --  This function allocates a completely new node, and then initializes
 409    --  it by copying the contents of the source node into it. The contents
 410    --  of the source node is not affected. The target node is always marked
 411    --  as not being in a list (even if the source is a list member). The
 412    --  new node will have an extension if the source has an extension.
 413    --  New_Copy (Empty) returns Empty and New_Copy (Error) returns Error.
 414    --  Note that, unlike New_Copy_Tree, New_Copy does not recursively copy any
 415    --  descendents, so in general parent pointers are not set correctly for
 416    --  the descendents of the copied node. Both normal and extended nodes
 417    --  (entities) may be copied using New_Copy.
 418
 419    function Relocate_Node (Source : Node_Id) return Node_Id;
 420    --  Source is a non-entity node that is to be relocated. A new node is
 421    --  allocated and the contents of Source are copied to this node using
 422    --  Copy_Node. The parent pointers of descendents of the node are then
 423    --  adjusted to point to the relocated copy. The original node is not
 424    --  modified, but the parent pointers of its descendents are no longer
 425    --  valid. This routine is used in conjunction with the tree rewrite
 426    --  routines (see descriptions of Replace/Rewrite).
 427    --
 428    --  Note that the resulting node has the same parent as the source
 429    --  node, and is thus still attached to the tree. It is valid for
 430    --  Source to be Empty, in which case Relocate_Node simply returns
 431    --  Empty as the result.
 432
 433    function Copy_Separate_Tree (Source : Node_Id) return Node_Id;
 434    --  Given a node that is the root of a subtree, Copy_Separate_Tree copies
 435    --  the entire syntactic subtree, including recursively any descendants
 436    --  whose parent field references a copied node (descendants not linked to
 437    --  a copied node by the parent field are also copied.) The parent pointers
 438    --  in the copy are properly set. Copy_Separate_Tree (Empty/Error) returns
 439    --  Empty/Error. The semantic fields are not copied and the new subtree
 440    --  does not share any entity with source subtree.
 441    --  But the code *does* copy semantic fields, and the description above
 442    --  is in any case unclear on this point ??? (RBKD)
 443
 444    procedure Exchange_Entities (E1 : Entity_Id; E2 : Entity_Id);
 445    --  Exchange the contents of two entities. The parent pointers are switched
 446    --  as well as the Defining_Identifier fields in the parents, so that the
 447    --  entities point correctly to their original parents. The effect is thus
 448    --  to leave the tree completely unchanged in structure, except that the
 449    --  entity ID values of the two entities are interchanged. Neither of the
 450    --  two entities may be list members.
 451
 452    function Extend_Node (Node : Node_Id) return Entity_Id;
 453    --  This function returns a copy of its input node with an extension
 454    --  added. The fields of the extension are set to Empty. Due to the way
 455    --  extensions are handled (as four consecutive array elements), it may
 456    --  be necessary to reallocate the node, so that the returned value is
 457    --  not the same as the input value, but where possible the returned
 458    --  value will be the same as the input value (i.e. the extension will
 459    --  occur in place). It is the caller's responsibility to ensure that
 460    --  any pointers to the original node are appropriately updated. This
 461    --  function is used only by Sinfo.CN to change nodes into their
 462    --  corresponding entities.
 463
 464    type Traverse_Result is (Abandon, OK, OK_Orig, Skip);
 465    --  This is the type of the result returned by the Process function passed
 466    --  to Traverse_Func and Traverse_Proc. See below for details.
 467
 468    subtype Traverse_Final_Result is Traverse_Result range Abandon .. OK;
 469    --  This is the type of the final result returned Traverse_Func, based on
 470    --  the results of Process calls. See below for details.
 471
 472    generic
 473      with function Process (N : Node_Id) return Traverse_Result is <>;
 474    function Traverse_Func (Node : Node_Id) return Traverse_Final_Result;
 475    --  This is a generic function that, given the parent node for a subtree,
 476    --  traverses all syntactic nodes of this tree, calling the given function
 477    --  Process on each one, in pre order (i.e. top-down). The order of
 478    --  traversing subtrees is arbitrary. The traversal is controlled as follows
 479    --  by the result returned by Process:
 480
 481    --    OK       The traversal continues normally with the syntactic
 482    --             children of the node just processed.
 483
 484    --    OK_Orig  The traversal continues normally with the syntactic
 485    --             children of the original node of the node just processed.
 486
 487    --    Skip     The children of the node just processed are skipped and
 488    --             excluded from the traversal, but otherwise processing
 489    --             continues elsewhere in the tree.
 490
 491    --    Abandon  The entire traversal is immediately abandoned, and the
 492    --             original call to Traverse returns Abandon.
 493
 494    --  The result returned by Traverse is Abandon if processing was terminated
 495    --  by a call to Process returning Abandon, otherwise it is OK (meaning that
 496    --  all calls to process returned either OK, OK_Orig, or Skip).
 497
 498    generic
 499      with function Process (N : Node_Id) return Traverse_Result is <>;
 500    procedure Traverse_Proc (Node : Node_Id);
 501    pragma Inline (Traverse_Proc);
 502    --  This is the same as Traverse_Func except that no result is returned,
 503    --  i.e. Traverse_Func is called and the result is simply discarded.
 504
 505    ---------------------------
 506    -- Node Access Functions --
 507    ---------------------------
 508
 509    --  The following functions return the contents of the indicated field of
 510    --  the node referenced by the argument, which is a Node_Id.
 511
 512    function Nkind             (N : Node_Id) return Node_Kind;
 513    pragma Inline (Nkind);
 514
 515    function Analyzed          (N : Node_Id) return Boolean;
 516    pragma Inline (Analyzed);
 517
 518    function Comes_From_Source (N : Node_Id) return Boolean;
 519    pragma Inline (Comes_From_Source);
 520
 521    function Error_Posted      (N : Node_Id) return Boolean;
 522    pragma Inline (Error_Posted);
 523
 524    function Sloc              (N : Node_Id) return Source_Ptr;
 525    pragma Inline (Sloc);
 526
 527    function Paren_Count       (N : Node_Id) return Nat;
 528    pragma Inline (Paren_Count);
 529
 530    function Parent            (N : Node_Id) return Node_Id;
 531    pragma Inline (Parent);
 532    --  Returns the parent of a node if the node is not a list member, or
 533    --  else the parent of the list containing the node if the node is a
 534    --  list member.
 535
 536    function No                (N : Node_Id) return Boolean;
 537    pragma Inline (No);
 538    --  Tests given Id for equality with the Empty node. This allows notations
 539    --  like "if No (Variant_Part)" as opposed to "if Variant_Part = Empty".
 540
 541    function Present           (N : Node_Id) return Boolean;
 542    pragma Inline (Present);
 543    --  Tests given Id for inequality with the Empty node. This allows notations
 544    --  like "if Present (Statement)" as opposed to "if Statement /= Empty".
 545
 546    --  Node_Kind tests, like the functions in Sinfo, but the first argument is
 547    --  a Node_Id, and the tested field is Nkind (N).
 548
 549    function Nkind_In
 550      (N  : Node_Id;
 551       V1 : Node_Kind;
 552       V2 : Node_Kind) return Boolean;
 553
 554    function Nkind_In
 555      (N  : Node_Id;
 556       V1 : Node_Kind;
 557       V2 : Node_Kind;
 558       V3 : Node_Kind) return Boolean;
 559
 560    function Nkind_In
 561      (N  : Node_Id;
 562       V1 : Node_Kind;
 563       V2 : Node_Kind;
 564       V3 : Node_Kind;
 565       V4 : Node_Kind) return Boolean;
 566
 567    function Nkind_In
 568      (N  : Node_Id;
 569       V1 : Node_Kind;
 570       V2 : Node_Kind;
 571       V3 : Node_Kind;
 572       V4 : Node_Kind;
 573       V5 : Node_Kind) return Boolean;
 574
 575    function Nkind_In
 576      (N  : Node_Id;
 577       V1 : Node_Kind;
 578       V2 : Node_Kind;
 579       V3 : Node_Kind;
 580       V4 : Node_Kind;
 581       V5 : Node_Kind;
 582       V6 : Node_Kind) return Boolean;
 583
 584    function Nkind_In
 585      (N  : Node_Id;
 586       V1 : Node_Kind;
 587       V2 : Node_Kind;
 588       V3 : Node_Kind;
 589       V4 : Node_Kind;
 590       V5 : Node_Kind;
 591       V6 : Node_Kind;
 592       V7 : Node_Kind) return Boolean;
 593
 594    function Nkind_In
 595      (N  : Node_Id;
 596       V1 : Node_Kind;
 597       V2 : Node_Kind;
 598       V3 : Node_Kind;
 599       V4 : Node_Kind;
 600       V5 : Node_Kind;
 601       V6 : Node_Kind;
 602       V7 : Node_Kind;
 603       V8 : Node_Kind) return Boolean;
 604
 605    function Nkind_In
 606      (N  : Node_Id;
 607       V1 : Node_Kind;
 608       V2 : Node_Kind;
 609       V3 : Node_Kind;
 610       V4 : Node_Kind;
 611       V5 : Node_Kind;
 612       V6 : Node_Kind;
 613       V7 : Node_Kind;
 614       V8 : Node_Kind;
 615       V9 : Node_Kind) return Boolean;
 616
 617    pragma Inline (Nkind_In);
 618    --  Inline all above functions
 619
 620    -----------------------------
 621    -- Entity Access Functions --
 622    -----------------------------
 623
 624    --  The following functions apply only to Entity_Id values, i.e.
 625    --  to extended nodes.
 626
 627    function Ekind (E : Entity_Id) return Entity_Kind;
 628    pragma Inline (Ekind);
 629
 630    function Convention (E : Entity_Id) return Convention_Id;
 631    pragma Inline (Convention);
 632
 633    ----------------------------
 634    -- Node Update Procedures --
 635    ----------------------------
 636
 637    --  The following functions set a specified field in the node whose Id is
 638    --  passed as the first argument. The second parameter is the new value
 639    --  to be set in the specified field. Note that Set_Nkind is in the next
 640    --  section, since its use is restricted.
 641
 642    procedure Set_Sloc         (N : Node_Id; Val : Source_Ptr);
 643    pragma Inline (Set_Sloc);
 644
 645    procedure Set_Paren_Count  (N : Node_Id; Val : Nat);
 646    pragma Inline (Set_Paren_Count);
 647
 648    procedure Set_Parent       (N : Node_Id; Val : Node_Id);
 649    pragma Inline (Set_Parent);
 650
 651    procedure Set_Analyzed     (N : Node_Id; Val : Boolean := True);
 652    pragma Inline (Set_Analyzed);
 653
 654    procedure Set_Error_Posted (N : Node_Id; Val : Boolean := True);
 655    pragma Inline (Set_Error_Posted);
 656
 657    procedure Set_Comes_From_Source (N : Node_Id; Val : Boolean);
 658    pragma Inline (Set_Comes_From_Source);
 659    --  Note that this routine is very rarely used, since usually the
 660    --  default mechanism provided sets the right value, but in some
 661    --  unusual cases, the value needs to be reset (e.g. when a source
 662    --  node is copied, and the copy must not have Comes_From_Source set.
 663
 664    ------------------------------
 665    -- Entity Update Procedures --
 666    ------------------------------
 667
 668    --  The following procedures apply only to Entity_Id values, i.e.
 669    --  to extended nodes.
 670
 671    procedure Basic_Set_Convention (E : Entity_Id; Val : Convention_Id);
 672    pragma Inline (Basic_Set_Convention);
 673    --  Clients should use Sem_Util.Set_Convention rather than calling this
 674    --  routine directly, as Set_Convention also deals with the special
 675    --  processing required for access types.
 676
 677    procedure Set_Ekind (E : Entity_Id; Val : Entity_Kind);
 678    pragma Inline (Set_Ekind);
 679
 680    ---------------------------
 681    -- Tree Rewrite Routines --
 682    ---------------------------
 683
 684    --  During the compilation process it is necessary in a number of situations
 685    --  to rewrite the tree. In some cases, such rewrites do not affect the
 686    --  structure of the tree, for example, when an indexed component node is
 687    --  replaced by the corresponding call node (the parser cannot distinguish
 688    --  between these two cases).
 689
 690    --  In other situations, the rewrite does affect the structure of the
 691    --  tree. Examples are the replacement of a generic instantiation by the
 692    --  instantiated spec and body, and the static evaluation of expressions.
 693
 694    --  If such structural modifications are done by the expander, there are
 695    --  no difficulties, since the form of the tree after the expander has no
 696    --  special significance, except as input to the backend of the compiler.
 697    --  However, if these modifications are done by the semantic phase, then
 698    --  it is important that they be done in a manner which allows the original
 699    --  tree to be preserved. This is because tools like pretty printers need
 700    --  to have this original tree structure available.
 701
 702    --  The subprograms in this section allow rewriting of the tree by either
 703    --  insertion of new nodes in an existing list, or complete replacement of
 704    --  a subtree. The resulting tree for most purposes looks as though it has
 705    --  been really changed, and there is no trace of the original. However,
 706    --  special subprograms, also defined in this section, allow the original
 707    --  tree to be reconstructed if necessary.
 708
 709    --  For tree modifications done in the expander, it is permissible to
 710    --  destroy the original tree, although it is also allowable to use the
 711    --  tree rewrite routines where it is convenient to do so.
 712
 713    procedure Mark_Rewrite_Insertion (New_Node : Node_Id);
 714    pragma Inline (Mark_Rewrite_Insertion);
 715    --  This procedure marks the given node as an insertion made during a tree
 716    --  rewriting operation. Only the root needs to be marked. The call does
 717    --  not do the actual insertion, which must be done using one of the normal
 718    --  list insertion routines. The node is treated normally in all respects
 719    --  except for its response to Is_Rewrite_Insertion. The function of these
 720    --  calls is to be able to get an accurate original tree. This helps the
 721    --  accuracy of Sprint.Sprint_Node, and in particular, when stubs are being
 722    --  generated, it is essential that the original tree be accurate.
 723
 724    function Is_Rewrite_Insertion (Node : Node_Id) return Boolean;
 725    pragma Inline (Is_Rewrite_Insertion);
 726    --  Tests whether the given node was marked using Set_Rewrite_Insert. This
 727    --  is used in reconstructing the original tree (where such nodes are to
 728    --  be eliminated from the reconstructed tree).
 729
 730    procedure Rewrite (Old_Node, New_Node : Node_Id);
 731    --  This is used when a complete subtree is to be replaced. Old_Node is the
 732    --  root of the old subtree to be replaced, and New_Node is the root of the
 733    --  newly constructed replacement subtree. The actual mechanism is to swap
 734    --  the contents of these two nodes fixing up the parent pointers of the
 735    --  replaced node (we do not attempt to preserve parent pointers for the
 736    --  original node). Neither Old_Node nor New_Node can be extended nodes.
 737    --
 738    --  Note: New_Node may not contain references to Old_Node, for example as
 739    --  descendents, since the rewrite would make such references invalid. If
 740    --  New_Node does need to reference Old_Node, then these references should
 741    --  be to a relocated copy of Old_Node (see Relocate_Node procedure).
 742    --
 743    --  Note: The Original_Node function applied to Old_Node (which has now
 744    --  been replaced by the contents of New_Node), can be used to obtain the
 745    --  original node, i.e. the old contents of Old_Node.
 746
 747    procedure Replace (Old_Node, New_Node : Node_Id);
 748    --  This is similar to Rewrite, except that the old value of Old_Node is
 749    --  not saved, and the New_Node is deleted after the replace, since it
 750    --  is assumed that it can no longer be legitimately needed. The flag
 751    --  Is_Rewrite_Susbtitute will be False for the resulting node, unless
 752    --  it was already true on entry, and Original_Node will not return the
 753    --  original contents of the Old_Node, but rather the New_Node value (unless
 754    --  Old_Node had already been rewritten using Rewrite). Replace also
 755    --  preserves the setting of Comes_From_Source.
 756    --
 757    --  Note, New_Node may not contain references to Old_Node, for example as
 758    --  descendents, since the rewrite would make such references invalid. If
 759    --  New_Node does need to reference Old_Node, then these references should
 760    --  be to a relocated copy of Old_Node (see Relocate_Node procedure).
 761    --
 762    --  Replace is used in certain circumstances where it is desirable to
 763    --  suppress any history of the rewriting operation. Notably, it is used
 764    --  when the parser has mis-classified a node (e.g. a task entry call
 765    --  that the parser has parsed as a procedure call).
 766
 767    function Is_Rewrite_Substitution (Node : Node_Id) return Boolean;
 768    pragma Inline (Is_Rewrite_Substitution);
 769    --  Return True iff Node has been rewritten (i.e. if Node is the root
 770    --  of a subtree which was installed using Rewrite).
 771
 772    function Original_Node (Node : Node_Id) return Node_Id;
 773    pragma Inline (Original_Node);
 774    --  If Node has not been rewritten, then returns its input argument
 775    --  unchanged, else returns the Node for the original subtree.
 776    --
 777    --  Note: Parents are not preserved in original tree nodes that are
 778    --  retrieved in this way (i.e. their children may have children whose
 779    --  pointers which reference some other node).
 780
 781    --  Note: there is no direct mechanism for deleting an original node (in
 782    --  a manner that can be reversed later). One possible approach is to use
 783    --  Rewrite to substitute a null statement for the node to be deleted.
 784
 785    -----------------------------------
 786    -- Generic Field Access Routines --
 787    -----------------------------------
 788
 789    --  This subpackage provides the functions for accessing and procedures for
 790    --  setting fields that are normally referenced by their logical synonyms
 791    --  defined in packages Sinfo and Einfo. The implementations of these
 792    --  packages use the package Atree.Unchecked_Access.
 793
 794    package Unchecked_Access is
 795
 796       --  Functions to allow interpretation of Union_Id values as Uint
 797       --  and Ureal values
 798
 799       function To_Union is new Unchecked_Conversion (Uint,  Union_Id);
 800       function To_Union is new Unchecked_Conversion (Ureal, Union_Id);
 801
 802       function From_Union is new Unchecked_Conversion (Union_Id, Uint);
 803       function From_Union is new Unchecked_Conversion (Union_Id, Ureal);
 804
 805       --  Functions to fetch contents of indicated field. It is an error
 806       --  to attempt to read the value of a field which is not present.
 807
 808       function Field1 (N : Node_Id) return Union_Id;
 809       pragma Inline (Field1);
 810
 811       function Field2 (N : Node_Id) return Union_Id;
 812       pragma Inline (Field2);
 813
 814       function Field3 (N : Node_Id) return Union_Id;
 815       pragma Inline (Field3);
 816
 817       function Field4 (N : Node_Id) return Union_Id;
 818       pragma Inline (Field4);
 819
 820       function Field5 (N : Node_Id) return Union_Id;
 821       pragma Inline (Field5);
 822
 823       function Field6 (N : Node_Id) return Union_Id;
 824       pragma Inline (Field6);
 825
 826       function Field7 (N : Node_Id) return Union_Id;
 827       pragma Inline (Field7);
 828
 829       function Field8 (N : Node_Id) return Union_Id;
 830       pragma Inline (Field8);
 831
 832       function Field9 (N : Node_Id) return Union_Id;
 833       pragma Inline (Field9);
 834
 835       function Field10 (N : Node_Id) return Union_Id;
 836       pragma Inline (Field10);
 837
 838       function Field11 (N : Node_Id) return Union_Id;
 839       pragma Inline (Field11);
 840
 841       function Field12 (N : Node_Id) return Union_Id;
 842       pragma Inline (Field12);
 843
 844       function Field13 (N : Node_Id) return Union_Id;
 845       pragma Inline (Field13);
 846
 847       function Field14 (N : Node_Id) return Union_Id;
 848       pragma Inline (Field14);
 849
 850       function Field15 (N : Node_Id) return Union_Id;
 851       pragma Inline (Field15);
 852
 853       function Field16 (N : Node_Id) return Union_Id;
 854       pragma Inline (Field16);
 855
 856       function Field17 (N : Node_Id) return Union_Id;
 857       pragma Inline (Field17);
 858
 859       function Field18 (N : Node_Id) return Union_Id;
 860       pragma Inline (Field18);
 861
 862       function Field19 (N : Node_Id) return Union_Id;
 863       pragma Inline (Field19);
 864
 865       function Field20 (N : Node_Id) return Union_Id;
 866       pragma Inline (Field20);
 867
 868       function Field21 (N : Node_Id) return Union_Id;
 869       pragma Inline (Field21);
 870
 871       function Field22 (N : Node_Id) return Union_Id;
 872       pragma Inline (Field22);
 873
 874       function Field23 (N : Node_Id) return Union_Id;
 875       pragma Inline (Field23);
 876
 877       function Field24 (N : Node_Id) return Union_Id;
 878       pragma Inline (Field24);
 879
 880       function Field25 (N : Node_Id) return Union_Id;
 881       pragma Inline (Field25);
 882
 883       function Field26 (N : Node_Id) return Union_Id;
 884       pragma Inline (Field26);
 885
 886       function Field27 (N : Node_Id) return Union_Id;
 887       pragma Inline (Field27);
 888
 889       function Field28 (N : Node_Id) return Union_Id;
 890       pragma Inline (Field28);
 891
 892       function Node1 (N : Node_Id) return Node_Id;
 893       pragma Inline (Node1);
 894
 895       function Node2 (N : Node_Id) return Node_Id;
 896       pragma Inline (Node2);
 897
 898       function Node3 (N : Node_Id) return Node_Id;
 899       pragma Inline (Node3);
 900
 901       function Node4 (N : Node_Id) return Node_Id;
 902       pragma Inline (Node4);
 903
 904       function Node5 (N : Node_Id) return Node_Id;
 905       pragma Inline (Node5);
 906
 907       function Node6 (N : Node_Id) return Node_Id;
 908       pragma Inline (Node6);
 909
 910       function Node7 (N : Node_Id) return Node_Id;
 911       pragma Inline (Node7);
 912
 913       function Node8 (N : Node_Id) return Node_Id;
 914       pragma Inline (Node8);
 915
 916       function Node9 (N : Node_Id) return Node_Id;
 917       pragma Inline (Node9);
 918
 919       function Node10 (N : Node_Id) return Node_Id;
 920       pragma Inline (Node10);
 921
 922       function Node11 (N : Node_Id) return Node_Id;
 923       pragma Inline (Node11);
 924
 925       function Node12 (N : Node_Id) return Node_Id;
 926       pragma Inline (Node12);
 927
 928       function Node13 (N : Node_Id) return Node_Id;
 929       pragma Inline (Node13);
 930
 931       function Node14 (N : Node_Id) return Node_Id;
 932       pragma Inline (Node14);
 933
 934       function Node15 (N : Node_Id) return Node_Id;
 935       pragma Inline (Node15);
 936
 937       function Node16 (N : Node_Id) return Node_Id;
 938       pragma Inline (Node16);
 939
 940       function Node17 (N : Node_Id) return Node_Id;
 941       pragma Inline (Node17);
 942
 943       function Node18 (N : Node_Id) return Node_Id;
 944       pragma Inline (Node18);
 945
 946       function Node19 (N : Node_Id) return Node_Id;
 947       pragma Inline (Node19);
 948
 949       function Node20 (N : Node_Id) return Node_Id;
 950       pragma Inline (Node20);
 951
 952       function Node21 (N : Node_Id) return Node_Id;
 953       pragma Inline (Node21);
 954
 955       function Node22 (N : Node_Id) return Node_Id;
 956       pragma Inline (Node22);
 957
 958       function Node23 (N : Node_Id) return Node_Id;
 959       pragma Inline (Node23);
 960
 961       function Node24 (N : Node_Id) return Node_Id;
 962       pragma Inline (Node24);
 963
 964       function Node25 (N : Node_Id) return Node_Id;
 965       pragma Inline (Node25);
 966
 967       function Node26 (N : Node_Id) return Node_Id;
 968       pragma Inline (Node26);
 969
 970       function Node27 (N : Node_Id) return Node_Id;
 971       pragma Inline (Node27);
 972
 973       function Node28 (N : Node_Id) return Node_Id;
 974       pragma Inline (Node28);
 975
 976       function List1 (N : Node_Id) return List_Id;
 977       pragma Inline (List1);
 978
 979       function List2 (N : Node_Id) return List_Id;
 980       pragma Inline (List2);
 981
 982       function List3 (N : Node_Id) return List_Id;
 983       pragma Inline (List3);
 984
 985       function List4 (N : Node_Id) return List_Id;
 986       pragma Inline (List4);
 987
 988       function List5 (N : Node_Id) return List_Id;
 989       pragma Inline (List5);
 990
 991       function List10 (N : Node_Id) return List_Id;
 992       pragma Inline (List10);
 993
 994       function List14 (N : Node_Id) return List_Id;
 995       pragma Inline (List14);
 996
 997       function Elist1 (N : Node_Id) return Elist_Id;
 998       pragma Inline (Elist1);
 999
1000       function Elist2 (N : Node_Id) return Elist_Id;
1001       pragma Inline (Elist2);
1002
1003       function Elist3 (N : Node_Id) return Elist_Id;
1004       pragma Inline (Elist3);
1005
1006       function Elist4 (N : Node_Id) return Elist_Id;
1007       pragma Inline (Elist4);
1008
1009       function Elist8 (N : Node_Id) return Elist_Id;
1010       pragma Inline (Elist8);
1011
1012       function Elist13 (N : Node_Id) return Elist_Id;
1013       pragma Inline (Elist13);
1014
1015       function Elist15 (N : Node_Id) return Elist_Id;
1016       pragma Inline (Elist15);
1017
1018       function Elist16 (N : Node_Id) return Elist_Id;
1019       pragma Inline (Elist16);
1020
1021       function Elist18 (N : Node_Id) return Elist_Id;
1022       pragma Inline (Elist18);
1023
1024       function Elist21 (N : Node_Id) return Elist_Id;
1025       pragma Inline (Elist21);
1026
1027       function Elist23 (N : Node_Id) return Elist_Id;
1028       pragma Inline (Elist23);
1029
1030       function Elist25 (N : Node_Id) return Elist_Id;
1031       pragma Inline (Elist25);
1032
1033       function Elist26 (N : Node_Id) return Elist_Id;
1034       pragma Inline (Elist26);
1035
1036       function Name1 (N : Node_Id) return Name_Id;
1037       pragma Inline (Name1);
1038
1039       function Name2 (N : Node_Id) return Name_Id;
1040       pragma Inline (Name2);
1041
1042       function Str3 (N : Node_Id) return String_Id;
1043       pragma Inline (Str3);
1044
1045       --  Note: the following Uintnn functions have a special test for
1046       --  the Field value being Empty. If an Empty value is found then
1047       --  Uint_0 is returned. This avoids the rather tricky requirement
1048       --  of initializing all Uint fields in nodes and entities.
1049
1050       function Uint2 (N : Node_Id) return Uint;
1051       pragma Inline (Uint2);
1052
1053       function Uint3 (N : Node_Id) return Uint;
1054       pragma Inline (Uint3);
1055
1056       function Uint4 (N : Node_Id) return Uint;
1057       pragma Inline (Uint4);
1058
1059       function Uint5 (N : Node_Id) return Uint;
1060       pragma Inline (Uint5);
1061
1062       function Uint8 (N : Node_Id) return Uint;
1063       pragma Inline (Uint8);
1064
1065       function Uint9 (N : Node_Id) return Uint;
1066       pragma Inline (Uint9);
1067
1068       function Uint10 (N : Node_Id) return Uint;
1069       pragma Inline (Uint10);
1070
1071       function Uint11 (N : Node_Id) return Uint;
1072       pragma Inline (Uint11);
1073
1074       function Uint12 (N : Node_Id) return Uint;
1075       pragma Inline (Uint12);
1076
1077       function Uint13 (N : Node_Id) return Uint;
1078       pragma Inline (Uint13);
1079
1080       function Uint14 (N : Node_Id) return Uint;
1081       pragma Inline (Uint14);
1082
1083       function Uint15 (N : Node_Id) return Uint;
1084       pragma Inline (Uint15);
1085
1086       function Uint16 (N : Node_Id) return Uint;
1087       pragma Inline (Uint16);
1088
1089       function Uint17 (N : Node_Id) return Uint;
1090       pragma Inline (Uint17);
1091
1092       function Uint22 (N : Node_Id) return Uint;
1093       pragma Inline (Uint22);
1094
1095       function Ureal3 (N : Node_Id) return Ureal;
1096       pragma Inline (Ureal3);
1097
1098       function Ureal18 (N : Node_Id) return Ureal;
1099       pragma Inline (Ureal18);
1100
1101       function Ureal21 (N : Node_Id) return Ureal;
1102       pragma Inline (Ureal21);
1103
1104       function Flag4 (N : Node_Id) return Boolean;
1105       pragma Inline (Flag4);
1106
1107       function Flag5 (N : Node_Id) return Boolean;
1108       pragma Inline (Flag5);
1109
1110       function Flag6 (N : Node_Id) return Boolean;
1111       pragma Inline (Flag6);
1112
1113       function Flag7 (N : Node_Id) return Boolean;
1114       pragma Inline (Flag7);
1115
1116       function Flag8 (N : Node_Id) return Boolean;
1117       pragma Inline (Flag8);
1118
1119       function Flag9 (N : Node_Id) return Boolean;
1120       pragma Inline (Flag9);
1121
1122       function Flag10 (N : Node_Id) return Boolean;
1123       pragma Inline (Flag10);
1124
1125       function Flag11 (N : Node_Id) return Boolean;
1126       pragma Inline (Flag11);
1127
1128       function Flag12 (N : Node_Id) return Boolean;
1129       pragma Inline (Flag12);
1130
1131       function Flag13 (N : Node_Id) return Boolean;
1132       pragma Inline (Flag13);
1133
1134       function Flag14 (N : Node_Id) return Boolean;
1135       pragma Inline (Flag14);
1136
1137       function Flag15 (N : Node_Id) return Boolean;
1138       pragma Inline (Flag15);
1139
1140       function Flag16 (N : Node_Id) return Boolean;
1141       pragma Inline (Flag16);
1142
1143       function Flag17 (N : Node_Id) return Boolean;
1144       pragma Inline (Flag17);
1145
1146       function Flag18 (N : Node_Id) return Boolean;
1147       pragma Inline (Flag18);
1148
1149       function Flag19 (N : Node_Id) return Boolean;
1150       pragma Inline (Flag19);
1151
1152       function Flag20 (N : Node_Id) return Boolean;
1153       pragma Inline (Flag20);
1154
1155       function Flag21 (N : Node_Id) return Boolean;
1156       pragma Inline (Flag21);
1157
1158       function Flag22 (N : Node_Id) return Boolean;
1159       pragma Inline (Flag22);
1160
1161       function Flag23 (N : Node_Id) return Boolean;
1162       pragma Inline (Flag23);
1163
1164       function Flag24 (N : Node_Id) return Boolean;
1165       pragma Inline (Flag24);
1166
1167       function Flag25 (N : Node_Id) return Boolean;
1168       pragma Inline (Flag25);
1169
1170       function Flag26 (N : Node_Id) return Boolean;
1171       pragma Inline (Flag26);
1172
1173       function Flag27 (N : Node_Id) return Boolean;
1174       pragma Inline (Flag27);
1175
1176       function Flag28 (N : Node_Id) return Boolean;
1177       pragma Inline (Flag28);
1178
1179       function Flag29 (N : Node_Id) return Boolean;
1180       pragma Inline (Flag29);
1181
1182       function Flag30 (N : Node_Id) return Boolean;
1183       pragma Inline (Flag30);
1184
1185       function Flag31 (N : Node_Id) return Boolean;
1186       pragma Inline (Flag31);
1187
1188       function Flag32 (N : Node_Id) return Boolean;
1189       pragma Inline (Flag32);
1190
1191       function Flag33 (N : Node_Id) return Boolean;
1192       pragma Inline (Flag33);
1193
1194       function Flag34 (N : Node_Id) return Boolean;
1195       pragma Inline (Flag34);
1196
1197       function Flag35 (N : Node_Id) return Boolean;
1198       pragma Inline (Flag35);
1199
1200       function Flag36 (N : Node_Id) return Boolean;
1201       pragma Inline (Flag36);
1202
1203       function Flag37 (N : Node_Id) return Boolean;
1204       pragma Inline (Flag37);
1205
1206       function Flag38 (N : Node_Id) return Boolean;
1207       pragma Inline (Flag38);
1208
1209       function Flag39 (N : Node_Id) return Boolean;
1210       pragma Inline (Flag39);
1211
1212       function Flag40 (N : Node_Id) return Boolean;
1213       pragma Inline (Flag40);
1214
1215       function Flag41 (N : Node_Id) return Boolean;
1216       pragma Inline (Flag41);
1217
1218       function Flag42 (N : Node_Id) return Boolean;
1219       pragma Inline (Flag42);
1220
1221       function Flag43 (N : Node_Id) return Boolean;
1222       pragma Inline (Flag43);
1223
1224       function Flag44 (N : Node_Id) return Boolean;
1225       pragma Inline (Flag44);
1226
1227       function Flag45 (N : Node_Id) return Boolean;
1228       pragma Inline (Flag45);
1229
1230       function Flag46 (N : Node_Id) return Boolean;
1231       pragma Inline (Flag46);
1232
1233       function Flag47 (N : Node_Id) return Boolean;
1234       pragma Inline (Flag47);
1235
1236       function Flag48 (N : Node_Id) return Boolean;
1237       pragma Inline (Flag48);
1238
1239       function Flag49 (N : Node_Id) return Boolean;
1240       pragma Inline (Flag49);
1241
1242       function Flag50 (N : Node_Id) return Boolean;
1243       pragma Inline (Flag50);
1244
1245       function Flag51 (N : Node_Id) return Boolean;
1246       pragma Inline (Flag51);
1247
1248       function Flag52 (N : Node_Id) return Boolean;
1249       pragma Inline (Flag52);
1250
1251       function Flag53 (N : Node_Id) return Boolean;
1252       pragma Inline (Flag53);
1253
1254       function Flag54 (N : Node_Id) return Boolean;
1255       pragma Inline (Flag54);
1256
1257       function Flag55 (N : Node_Id) return Boolean;
1258       pragma Inline (Flag55);
1259
1260       function Flag56 (N : Node_Id) return Boolean;
1261       pragma Inline (Flag56);
1262
1263       function Flag57 (N : Node_Id) return Boolean;
1264       pragma Inline (Flag57);
1265
1266       function Flag58 (N : Node_Id) return Boolean;
1267       pragma Inline (Flag58);
1268
1269       function Flag59 (N : Node_Id) return Boolean;
1270       pragma Inline (Flag59);
1271
1272       function Flag60 (N : Node_Id) return Boolean;
1273       pragma Inline (Flag60);
1274
1275       function Flag61 (N : Node_Id) return Boolean;
1276       pragma Inline (Flag61);
1277
1278       function Flag62 (N : Node_Id) return Boolean;
1279       pragma Inline (Flag62);
1280
1281       function Flag63 (N : Node_Id) return Boolean;
1282       pragma Inline (Flag63);
1283
1284       function Flag64 (N : Node_Id) return Boolean;
1285       pragma Inline (Flag64);
1286
1287       function Flag65 (N : Node_Id) return Boolean;
1288       pragma Inline (Flag65);
1289
1290       function Flag66 (N : Node_Id) return Boolean;
1291       pragma Inline (Flag66);
1292
1293       function Flag67 (N : Node_Id) return Boolean;
1294       pragma Inline (Flag67);
1295
1296       function Flag68 (N : Node_Id) return Boolean;
1297       pragma Inline (Flag68);
1298
1299       function Flag69 (N : Node_Id) return Boolean;
1300       pragma Inline (Flag69);
1301
1302       function Flag70 (N : Node_Id) return Boolean;
1303       pragma Inline (Flag70);
1304
1305       function Flag71 (N : Node_Id) return Boolean;
1306       pragma Inline (Flag71);
1307
1308       function Flag72 (N : Node_Id) return Boolean;
1309       pragma Inline (Flag72);
1310
1311       function Flag73 (N : Node_Id) return Boolean;
1312       pragma Inline (Flag73);
1313
1314       function Flag74 (N : Node_Id) return Boolean;
1315       pragma Inline (Flag74);
1316
1317       function Flag75 (N : Node_Id) return Boolean;
1318       pragma Inline (Flag75);
1319
1320       function Flag76 (N : Node_Id) return Boolean;
1321       pragma Inline (Flag76);
1322
1323       function Flag77 (N : Node_Id) return Boolean;
1324       pragma Inline (Flag77);
1325
1326       function Flag78 (N : Node_Id) return Boolean;
1327       pragma Inline (Flag78);
1328
1329       function Flag79 (N : Node_Id) return Boolean;
1330       pragma Inline (Flag79);
1331
1332       function Flag80 (N : Node_Id) return Boolean;
1333       pragma Inline (Flag80);
1334
1335       function Flag81 (N : Node_Id) return Boolean;
1336       pragma Inline (Flag81);
1337
1338       function Flag82 (N : Node_Id) return Boolean;
1339       pragma Inline (Flag82);
1340
1341       function Flag83 (N : Node_Id) return Boolean;
1342       pragma Inline (Flag83);
1343
1344       function Flag84 (N : Node_Id) return Boolean;
1345       pragma Inline (Flag84);
1346
1347       function Flag85 (N : Node_Id) return Boolean;
1348       pragma Inline (Flag85);
1349
1350       function Flag86 (N : Node_Id) return Boolean;
1351       pragma Inline (Flag86);
1352
1353       function Flag87 (N : Node_Id) return Boolean;
1354       pragma Inline (Flag87);
1355
1356       function Flag88 (N : Node_Id) return Boolean;
1357       pragma Inline (Flag88);
1358
1359       function Flag89 (N : Node_Id) return Boolean;
1360       pragma Inline (Flag89);
1361
1362       function Flag90 (N : Node_Id) return Boolean;
1363       pragma Inline (Flag90);
1364
1365       function Flag91 (N : Node_Id) return Boolean;
1366       pragma Inline (Flag91);
1367
1368       function Flag92 (N : Node_Id) return Boolean;
1369       pragma Inline (Flag92);
1370
1371       function Flag93 (N : Node_Id) return Boolean;
1372       pragma Inline (Flag93);
1373
1374       function Flag94 (N : Node_Id) return Boolean;
1375       pragma Inline (Flag94);
1376
1377       function Flag95 (N : Node_Id) return Boolean;
1378       pragma Inline (Flag95);
1379
1380       function Flag96 (N : Node_Id) return Boolean;
1381       pragma Inline (Flag96);
1382
1383       function Flag97 (N : Node_Id) return Boolean;
1384       pragma Inline (Flag97);
1385
1386       function Flag98 (N : Node_Id) return Boolean;
1387       pragma Inline (Flag98);
1388
1389       function Flag99 (N : Node_Id) return Boolean;
1390       pragma Inline (Flag99);
1391
1392       function Flag100 (N : Node_Id) return Boolean;
1393       pragma Inline (Flag100);
1394
1395       function Flag101 (N : Node_Id) return Boolean;
1396       pragma Inline (Flag101);
1397
1398       function Flag102 (N : Node_Id) return Boolean;
1399       pragma Inline (Flag102);
1400
1401       function Flag103 (N : Node_Id) return Boolean;
1402       pragma Inline (Flag103);
1403
1404       function Flag104 (N : Node_Id) return Boolean;
1405       pragma Inline (Flag104);
1406
1407       function Flag105 (N : Node_Id) return Boolean;
1408       pragma Inline (Flag105);
1409
1410       function Flag106 (N : Node_Id) return Boolean;
1411       pragma Inline (Flag106);
1412
1413       function Flag107 (N : Node_Id) return Boolean;
1414       pragma Inline (Flag107);
1415
1416       function Flag108 (N : Node_Id) return Boolean;
1417       pragma Inline (Flag108);
1418
1419       function Flag109 (N : Node_Id) return Boolean;
1420       pragma Inline (Flag109);
1421
1422       function Flag110 (N : Node_Id) return Boolean;
1423       pragma Inline (Flag110);
1424
1425       function Flag111 (N : Node_Id) return Boolean;
1426       pragma Inline (Flag111);
1427
1428       function Flag112 (N : Node_Id) return Boolean;
1429       pragma Inline (Flag112);
1430
1431       function Flag113 (N : Node_Id) return Boolean;
1432       pragma Inline (Flag113);
1433
1434       function Flag114 (N : Node_Id) return Boolean;
1435       pragma Inline (Flag114);
1436
1437       function Flag115 (N : Node_Id) return Boolean;
1438       pragma Inline (Flag115);
1439
1440       function Flag116 (N : Node_Id) return Boolean;
1441       pragma Inline (Flag116);
1442
1443       function Flag117 (N : Node_Id) return Boolean;
1444       pragma Inline (Flag117);
1445
1446       function Flag118 (N : Node_Id) return Boolean;
1447       pragma Inline (Flag118);
1448
1449       function Flag119 (N : Node_Id) return Boolean;
1450       pragma Inline (Flag119);
1451
1452       function Flag120 (N : Node_Id) return Boolean;
1453       pragma Inline (Flag120);
1454
1455       function Flag121 (N : Node_Id) return Boolean;
1456       pragma Inline (Flag121);
1457
1458       function Flag122 (N : Node_Id) return Boolean;
1459       pragma Inline (Flag122);
1460
1461       function Flag123 (N : Node_Id) return Boolean;
1462       pragma Inline (Flag123);
1463
1464       function Flag124 (N : Node_Id) return Boolean;
1465       pragma Inline (Flag124);
1466
1467       function Flag125 (N : Node_Id) return Boolean;
1468       pragma Inline (Flag125);
1469
1470       function Flag126 (N : Node_Id) return Boolean;
1471       pragma Inline (Flag126);
1472
1473       function Flag127 (N : Node_Id) return Boolean;
1474       pragma Inline (Flag127);
1475
1476       function Flag128 (N : Node_Id) return Boolean;
1477       pragma Inline (Flag128);
1478
1479       function Flag129 (N : Node_Id) return Boolean;
1480       pragma Inline (Flag129);
1481
1482       function Flag130 (N : Node_Id) return Boolean;
1483       pragma Inline (Flag130);
1484
1485       function Flag131 (N : Node_Id) return Boolean;
1486       pragma Inline (Flag131);
1487
1488       function Flag132 (N : Node_Id) return Boolean;
1489       pragma Inline (Flag132);
1490
1491       function Flag133 (N : Node_Id) return Boolean;
1492       pragma Inline (Flag133);
1493
1494       function Flag134 (N : Node_Id) return Boolean;
1495       pragma Inline (Flag134);
1496
1497       function Flag135 (N : Node_Id) return Boolean;
1498       pragma Inline (Flag135);
1499
1500       function Flag136 (N : Node_Id) return Boolean;
1501       pragma Inline (Flag136);
1502
1503       function Flag137 (N : Node_Id) return Boolean;
1504       pragma Inline (Flag137);
1505
1506       function Flag138 (N : Node_Id) return Boolean;
1507       pragma Inline (Flag138);
1508
1509       function Flag139 (N : Node_Id) return Boolean;
1510       pragma Inline (Flag139);
1511
1512       function Flag140 (N : Node_Id) return Boolean;
1513       pragma Inline (Flag140);
1514
1515       function Flag141 (N : Node_Id) return Boolean;
1516       pragma Inline (Flag141);
1517
1518       function Flag142 (N : Node_Id) return Boolean;
1519       pragma Inline (Flag142);
1520
1521       function Flag143 (N : Node_Id) return Boolean;
1522       pragma Inline (Flag143);
1523
1524       function Flag144 (N : Node_Id) return Boolean;
1525       pragma Inline (Flag144);
1526
1527       function Flag145 (N : Node_Id) return Boolean;
1528       pragma Inline (Flag145);
1529
1530       function Flag146 (N : Node_Id) return Boolean;
1531       pragma Inline (Flag146);
1532
1533       function Flag147 (N : Node_Id) return Boolean;
1534       pragma Inline (Flag147);
1535
1536       function Flag148 (N : Node_Id) return Boolean;
1537       pragma Inline (Flag148);
1538
1539       function Flag149 (N : Node_Id) return Boolean;
1540       pragma Inline (Flag149);
1541
1542       function Flag150 (N : Node_Id) return Boolean;
1543       pragma Inline (Flag150);
1544
1545       function Flag151 (N : Node_Id) return Boolean;
1546       pragma Inline (Flag151);
1547
1548       function Flag152 (N : Node_Id) return Boolean;
1549       pragma Inline (Flag152);
1550
1551       function Flag153 (N : Node_Id) return Boolean;
1552       pragma Inline (Flag153);
1553
1554       function Flag154 (N : Node_Id) return Boolean;
1555       pragma Inline (Flag154);
1556
1557       function Flag155 (N : Node_Id) return Boolean;
1558       pragma Inline (Flag155);
1559
1560       function Flag156 (N : Node_Id) return Boolean;
1561       pragma Inline (Flag156);
1562
1563       function Flag157 (N : Node_Id) return Boolean;
1564       pragma Inline (Flag157);
1565
1566       function Flag158 (N : Node_Id) return Boolean;
1567       pragma Inline (Flag158);
1568
1569       function Flag159 (N : Node_Id) return Boolean;
1570       pragma Inline (Flag159);
1571
1572       function Flag160 (N : Node_Id) return Boolean;
1573       pragma Inline (Flag160);
1574
1575       function Flag161 (N : Node_Id) return Boolean;
1576       pragma Inline (Flag161);
1577
1578       function Flag162 (N : Node_Id) return Boolean;
1579       pragma Inline (Flag162);
1580
1581       function Flag163 (N : Node_Id) return Boolean;
1582       pragma Inline (Flag163);
1583
1584       function Flag164 (N : Node_Id) return Boolean;
1585       pragma Inline (Flag164);
1586
1587       function Flag165 (N : Node_Id) return Boolean;
1588       pragma Inline (Flag165);
1589
1590       function Flag166 (N : Node_Id) return Boolean;
1591       pragma Inline (Flag166);
1592
1593       function Flag167 (N : Node_Id) return Boolean;
1594       pragma Inline (Flag167);
1595
1596       function Flag168 (N : Node_Id) return Boolean;
1597       pragma Inline (Flag168);
1598
1599       function Flag169 (N : Node_Id) return Boolean;
1600       pragma Inline (Flag169);
1601
1602       function Flag170 (N : Node_Id) return Boolean;
1603       pragma Inline (Flag170);
1604
1605       function Flag171 (N : Node_Id) return Boolean;
1606       pragma Inline (Flag171);
1607
1608       function Flag172 (N : Node_Id) return Boolean;
1609       pragma Inline (Flag172);
1610
1611       function Flag173 (N : Node_Id) return Boolean;
1612       pragma Inline (Flag173);
1613
1614       function Flag174 (N : Node_Id) return Boolean;
1615       pragma Inline (Flag174);
1616
1617       function Flag175 (N : Node_Id) return Boolean;
1618       pragma Inline (Flag175);
1619
1620       function Flag176 (N : Node_Id) return Boolean;
1621       pragma Inline (Flag176);
1622
1623       function Flag177 (N : Node_Id) return Boolean;
1624       pragma Inline (Flag177);
1625
1626       function Flag178 (N : Node_Id) return Boolean;
1627       pragma Inline (Flag178);
1628
1629       function Flag179 (N : Node_Id) return Boolean;
1630       pragma Inline (Flag179);
1631
1632       function Flag180 (N : Node_Id) return Boolean;
1633       pragma Inline (Flag180);
1634
1635       function Flag181 (N : Node_Id) return Boolean;
1636       pragma Inline (Flag181);
1637
1638       function Flag182 (N : Node_Id) return Boolean;
1639       pragma Inline (Flag182);
1640
1641       function Flag183 (N : Node_Id) return Boolean;
1642       pragma Inline (Flag183);
1643
1644       function Flag184 (N : Node_Id) return Boolean;
1645       pragma Inline (Flag184);
1646
1647       function Flag185 (N : Node_Id) return Boolean;
1648       pragma Inline (Flag185);
1649
1650       function Flag186 (N : Node_Id) return Boolean;
1651       pragma Inline (Flag186);
1652
1653       function Flag187 (N : Node_Id) return Boolean;
1654       pragma Inline (Flag187);
1655
1656       function Flag188 (N : Node_Id) return Boolean;
1657       pragma Inline (Flag188);
1658
1659       function Flag189 (N : Node_Id) return Boolean;
1660       pragma Inline (Flag189);
1661
1662       function Flag190 (N : Node_Id) return Boolean;
1663       pragma Inline (Flag190);
1664
1665       function Flag191 (N : Node_Id) return Boolean;
1666       pragma Inline (Flag191);
1667
1668       function Flag192 (N : Node_Id) return Boolean;
1669       pragma Inline (Flag192);
1670
1671       function Flag193 (N : Node_Id) return Boolean;
1672       pragma Inline (Flag193);
1673
1674       function Flag194 (N : Node_Id) return Boolean;
1675       pragma Inline (Flag194);
1676
1677       function Flag195 (N : Node_Id) return Boolean;
1678       pragma Inline (Flag195);
1679
1680       function Flag196 (N : Node_Id) return Boolean;
1681       pragma Inline (Flag196);
1682
1683       function Flag197 (N : Node_Id) return Boolean;
1684       pragma Inline (Flag197);
1685
1686       function Flag198 (N : Node_Id) return Boolean;
1687       pragma Inline (Flag198);
1688
1689       function Flag199 (N : Node_Id) return Boolean;
1690       pragma Inline (Flag199);
1691
1692       function Flag200 (N : Node_Id) return Boolean;
1693       pragma Inline (Flag200);
1694
1695       function Flag201 (N : Node_Id) return Boolean;
1696       pragma Inline (Flag201);
1697
1698       function Flag202 (N : Node_Id) return Boolean;
1699       pragma Inline (Flag202);
1700
1701       function Flag203 (N : Node_Id) return Boolean;
1702       pragma Inline (Flag203);
1703
1704       function Flag204 (N : Node_Id) return Boolean;
1705       pragma Inline (Flag204);
1706
1707       function Flag205 (N : Node_Id) return Boolean;
1708       pragma Inline (Flag205);
1709
1710       function Flag206 (N : Node_Id) return Boolean;
1711       pragma Inline (Flag206);
1712
1713       function Flag207 (N : Node_Id) return Boolean;
1714       pragma Inline (Flag207);
1715
1716       function Flag208 (N : Node_Id) return Boolean;
1717       pragma Inline (Flag208);
1718
1719       function Flag209 (N : Node_Id) return Boolean;
1720       pragma Inline (Flag209);
1721
1722       function Flag210 (N : Node_Id) return Boolean;
1723       pragma Inline (Flag210);
1724
1725       function Flag211 (N : Node_Id) return Boolean;
1726       pragma Inline (Flag211);
1727
1728       function Flag212 (N : Node_Id) return Boolean;
1729       pragma Inline (Flag212);
1730
1731       function Flag213 (N : Node_Id) return Boolean;
1732       pragma Inline (Flag213);
1733
1734       function Flag214 (N : Node_Id) return Boolean;
1735       pragma Inline (Flag214);
1736
1737       function Flag215 (N : Node_Id) return Boolean;
1738       pragma Inline (Flag215);
1739
1740       function Flag216 (N : Node_Id) return Boolean;
1741       pragma Inline (Flag216);
1742
1743       function Flag217 (N : Node_Id) return Boolean;
1744       pragma Inline (Flag217);
1745
1746       function Flag218 (N : Node_Id) return Boolean;
1747       pragma Inline (Flag218);
1748
1749       function Flag219 (N : Node_Id) return Boolean;
1750       pragma Inline (Flag219);
1751
1752       function Flag220 (N : Node_Id) return Boolean;
1753       pragma Inline (Flag220);
1754
1755       function Flag221 (N : Node_Id) return Boolean;
1756       pragma Inline (Flag221);
1757
1758       function Flag222 (N : Node_Id) return Boolean;
1759       pragma Inline (Flag222);
1760
1761       function Flag223 (N : Node_Id) return Boolean;
1762       pragma Inline (Flag223);
1763
1764       function Flag224 (N : Node_Id) return Boolean;
1765       pragma Inline (Flag224);
1766
1767       function Flag225 (N : Node_Id) return Boolean;
1768       pragma Inline (Flag225);
1769
1770       function Flag226 (N : Node_Id) return Boolean;
1771       pragma Inline (Flag226);
1772
1773       function Flag227 (N : Node_Id) return Boolean;
1774       pragma Inline (Flag227);
1775
1776       function Flag228 (N : Node_Id) return Boolean;
1777       pragma Inline (Flag228);
1778
1779       function Flag229 (N : Node_Id) return Boolean;
1780       pragma Inline (Flag229);
1781
1782       function Flag230 (N : Node_Id) return Boolean;
1783       pragma Inline (Flag230);
1784
1785       function Flag231 (N : Node_Id) return Boolean;
1786       pragma Inline (Flag231);
1787
1788       function Flag232 (N : Node_Id) return Boolean;
1789       pragma Inline (Flag232);
1790
1791       function Flag233 (N : Node_Id) return Boolean;
1792       pragma Inline (Flag233);
1793
1794       function Flag234 (N : Node_Id) return Boolean;
1795       pragma Inline (Flag234);
1796
1797       function Flag235 (N : Node_Id) return Boolean;
1798       pragma Inline (Flag235);
1799
1800       function Flag236 (N : Node_Id) return Boolean;
1801       pragma Inline (Flag236);
1802
1803       function Flag237 (N : Node_Id) return Boolean;
1804       pragma Inline (Flag237);
1805
1806       function Flag238 (N : Node_Id) return Boolean;
1807       pragma Inline (Flag238);
1808
1809       function Flag239 (N : Node_Id) return Boolean;
1810       pragma Inline (Flag239);
1811
1812       function Flag240 (N : Node_Id) return Boolean;
1813       pragma Inline (Flag240);
1814
1815       function Flag241 (N : Node_Id) return Boolean;
1816       pragma Inline (Flag241);
1817
1818       function Flag242 (N : Node_Id) return Boolean;
1819       pragma Inline (Flag242);
1820
1821       function Flag243 (N : Node_Id) return Boolean;
1822       pragma Inline (Flag243);
1823
1824       function Flag244 (N : Node_Id) return Boolean;
1825       pragma Inline (Flag244);
1826
1827       function Flag245 (N : Node_Id) return Boolean;
1828       pragma Inline (Flag245);
1829
1830       function Flag246 (N : Node_Id) return Boolean;
1831       pragma Inline (Flag246);
1832
1833       function Flag247 (N : Node_Id) return Boolean;
1834       pragma Inline (Flag247);
1835
1836       --  Procedures to set value of indicated field
1837
1838       procedure Set_Nkind (N : Node_Id; Val : Node_Kind);
1839       pragma Inline (Set_Nkind);
1840
1841       procedure Set_Field1 (N : Node_Id; Val : Union_Id);
1842       pragma Inline (Set_Field1);
1843
1844       procedure Set_Field2 (N : Node_Id; Val : Union_Id);
1845       pragma Inline (Set_Field2);
1846
1847       procedure Set_Field3 (N : Node_Id; Val : Union_Id);
1848       pragma Inline (Set_Field3);
1849
1850       procedure Set_Field4 (N : Node_Id; Val : Union_Id);
1851       pragma Inline (Set_Field4);
1852
1853       procedure Set_Field5 (N : Node_Id; Val : Union_Id);
1854       pragma Inline (Set_Field5);
1855
1856       procedure Set_Field6 (N : Node_Id; Val : Union_Id);
1857       pragma Inline (Set_Field6);
1858
1859       procedure Set_Field7 (N : Node_Id; Val : Union_Id);
1860       pragma Inline (Set_Field7);
1861
1862       procedure Set_Field8 (N : Node_Id; Val : Union_Id);
1863       pragma Inline (Set_Field8);
1864
1865       procedure Set_Field9 (N : Node_Id; Val : Union_Id);
1866       pragma Inline (Set_Field9);
1867
1868       procedure Set_Field10 (N : Node_Id; Val : Union_Id);
1869       pragma Inline (Set_Field10);
1870
1871       procedure Set_Field11 (N : Node_Id; Val : Union_Id);
1872       pragma Inline (Set_Field11);
1873
1874       procedure Set_Field12 (N : Node_Id; Val : Union_Id);
1875       pragma Inline (Set_Field12);
1876
1877       procedure Set_Field13 (N : Node_Id; Val : Union_Id);
1878       pragma Inline (Set_Field13);
1879
1880       procedure Set_Field14 (N : Node_Id; Val : Union_Id);
1881       pragma Inline (Set_Field14);
1882
1883       procedure Set_Field15 (N : Node_Id; Val : Union_Id);
1884       pragma Inline (Set_Field15);
1885
1886       procedure Set_Field16 (N : Node_Id; Val : Union_Id);
1887       pragma Inline (Set_Field16);
1888
1889       procedure Set_Field17 (N : Node_Id; Val : Union_Id);
1890       pragma Inline (Set_Field17);
1891
1892       procedure Set_Field18 (N : Node_Id; Val : Union_Id);
1893       pragma Inline (Set_Field18);
1894
1895       procedure Set_Field19 (N : Node_Id; Val : Union_Id);
1896       pragma Inline (Set_Field19);
1897
1898       procedure Set_Field20 (N : Node_Id; Val : Union_Id);
1899       pragma Inline (Set_Field20);
1900
1901       procedure Set_Field21 (N : Node_Id; Val : Union_Id);
1902       pragma Inline (Set_Field21);
1903
1904       procedure Set_Field22 (N : Node_Id; Val : Union_Id);
1905       pragma Inline (Set_Field22);
1906
1907       procedure Set_Field23 (N : Node_Id; Val : Union_Id);
1908       pragma Inline (Set_Field23);
1909
1910       procedure Set_Field24 (N : Node_Id; Val : Union_Id);
1911       pragma Inline (Set_Field24);
1912
1913       procedure Set_Field25 (N : Node_Id; Val : Union_Id);
1914       pragma Inline (Set_Field25);
1915
1916       procedure Set_Field26 (N : Node_Id; Val : Union_Id);
1917       pragma Inline (Set_Field26);
1918
1919       procedure Set_Field27 (N : Node_Id; Val : Union_Id);
1920       pragma Inline (Set_Field27);
1921
1922       procedure Set_Field28 (N : Node_Id; Val : Union_Id);
1923       pragma Inline (Set_Field28);
1924
1925       procedure Set_Node1 (N : Node_Id; Val : Node_Id);
1926       pragma Inline (Set_Node1);
1927
1928       procedure Set_Node2 (N : Node_Id; Val : Node_Id);
1929       pragma Inline (Set_Node2);
1930
1931       procedure Set_Node3 (N : Node_Id; Val : Node_Id);
1932       pragma Inline (Set_Node3);
1933
1934       procedure Set_Node4 (N : Node_Id; Val : Node_Id);
1935       pragma Inline (Set_Node4);
1936
1937       procedure Set_Node5 (N : Node_Id; Val : Node_Id);
1938       pragma Inline (Set_Node5);
1939
1940       procedure Set_Node6 (N : Node_Id; Val : Node_Id);
1941       pragma Inline (Set_Node6);
1942
1943       procedure Set_Node7 (N : Node_Id; Val : Node_Id);
1944       pragma Inline (Set_Node7);
1945
1946       procedure Set_Node8 (N : Node_Id; Val : Node_Id);
1947       pragma Inline (Set_Node8);
1948
1949       procedure Set_Node9 (N : Node_Id; Val : Node_Id);
1950       pragma Inline (Set_Node9);
1951
1952       procedure Set_Node10 (N : Node_Id; Val : Node_Id);
1953       pragma Inline (Set_Node10);
1954
1955       procedure Set_Node11 (N : Node_Id; Val : Node_Id);
1956       pragma Inline (Set_Node11);
1957
1958       procedure Set_Node12 (N : Node_Id; Val : Node_Id);
1959       pragma Inline (Set_Node12);
1960
1961       procedure Set_Node13 (N : Node_Id; Val : Node_Id);
1962       pragma Inline (Set_Node13);
1963
1964       procedure Set_Node14 (N : Node_Id; Val : Node_Id);
1965       pragma Inline (Set_Node14);
1966
1967       procedure Set_Node15 (N : Node_Id; Val : Node_Id);
1968       pragma Inline (Set_Node15);
1969
1970       procedure Set_Node16 (N : Node_Id; Val : Node_Id);
1971       pragma Inline (Set_Node16);
1972
1973       procedure Set_Node17 (N : Node_Id; Val : Node_Id);
1974       pragma Inline (Set_Node17);
1975
1976       procedure Set_Node18 (N : Node_Id; Val : Node_Id);
1977       pragma Inline (Set_Node18);
1978
1979       procedure Set_Node19 (N : Node_Id; Val : Node_Id);
1980       pragma Inline (Set_Node19);
1981
1982       procedure Set_Node20 (N : Node_Id; Val : Node_Id);
1983       pragma Inline (Set_Node20);
1984
1985       procedure Set_Node21 (N : Node_Id; Val : Node_Id);
1986       pragma Inline (Set_Node21);
1987
1988       procedure Set_Node22 (N : Node_Id; Val : Node_Id);
1989       pragma Inline (Set_Node22);
1990
1991       procedure Set_Node23 (N : Node_Id; Val : Node_Id);
1992       pragma Inline (Set_Node23);
1993
1994       procedure Set_Node24 (N : Node_Id; Val : Node_Id);
1995       pragma Inline (Set_Node24);
1996
1997       procedure Set_Node25 (N : Node_Id; Val : Node_Id);
1998       pragma Inline (Set_Node25);
1999
2000       procedure Set_Node26 (N : Node_Id; Val : Node_Id);
2001       pragma Inline (Set_Node26);
2002
2003       procedure Set_Node27 (N : Node_Id; Val : Node_Id);
2004       pragma Inline (Set_Node27);
2005
2006       procedure Set_Node28 (N : Node_Id; Val : Node_Id);
2007       pragma Inline (Set_Node28);
2008
2009       procedure Set_List1 (N : Node_Id; Val : List_Id);
2010       pragma Inline (Set_List1);
2011
2012       procedure Set_List2 (N : Node_Id; Val : List_Id);
2013       pragma Inline (Set_List2);
2014
2015       procedure Set_List3 (N : Node_Id; Val : List_Id);
2016       pragma Inline (Set_List3);
2017
2018       procedure Set_List4 (N : Node_Id; Val : List_Id);
2019       pragma Inline (Set_List4);
2020
2021       procedure Set_List5 (N : Node_Id; Val : List_Id);
2022       pragma Inline (Set_List5);
2023
2024       procedure Set_List10 (N : Node_Id; Val : List_Id);
2025       pragma Inline (Set_List10);
2026
2027       procedure Set_List14 (N : Node_Id; Val : List_Id);
2028       pragma Inline (Set_List14);
2029
2030       procedure Set_Elist1 (N : Node_Id; Val : Elist_Id);
2031       pragma Inline (Set_Elist1);
2032
2033       procedure Set_Elist2 (N : Node_Id; Val : Elist_Id);
2034       pragma Inline (Set_Elist2);
2035
2036       procedure Set_Elist3 (N : Node_Id; Val : Elist_Id);
2037       pragma Inline (Set_Elist3);
2038
2039       procedure Set_Elist4 (N : Node_Id; Val : Elist_Id);
2040       pragma Inline (Set_Elist4);
2041
2042       procedure Set_Elist8 (N : Node_Id; Val : Elist_Id);
2043       pragma Inline (Set_Elist8);
2044
2045       procedure Set_Elist13 (N : Node_Id; Val : Elist_Id);
2046       pragma Inline (Set_Elist13);
2047
2048       procedure Set_Elist15 (N : Node_Id; Val : Elist_Id);
2049       pragma Inline (Set_Elist15);
2050
2051       procedure Set_Elist16 (N : Node_Id; Val : Elist_Id);
2052       pragma Inline (Set_Elist16);
2053
2054       procedure Set_Elist18 (N : Node_Id; Val : Elist_Id);
2055       pragma Inline (Set_Elist18);
2056
2057       procedure Set_Elist21 (N : Node_Id; Val : Elist_Id);
2058       pragma Inline (Set_Elist21);
2059
2060       procedure Set_Elist23 (N : Node_Id; Val : Elist_Id);
2061       pragma Inline (Set_Elist23);
2062
2063       procedure Set_Elist25 (N : Node_Id; Val : Elist_Id);
2064       pragma Inline (Set_Elist25);
2065
2066       procedure Set_Elist26 (N : Node_Id; Val : Elist_Id);
2067       pragma Inline (Set_Elist26);
2068
2069       procedure Set_Name1 (N : Node_Id; Val : Name_Id);
2070       pragma Inline (Set_Name1);
2071
2072       procedure Set_Name2 (N : Node_Id; Val : Name_Id);
2073       pragma Inline (Set_Name2);
2074
2075       procedure Set_Str3 (N : Node_Id; Val : String_Id);
2076       pragma Inline (Set_Str3);
2077
2078       procedure Set_Uint2 (N : Node_Id; Val : Uint);
2079       pragma Inline (Set_Uint2);
2080
2081       procedure Set_Uint3 (N : Node_Id; Val : Uint);
2082       pragma Inline (Set_Uint3);
2083
2084       procedure Set_Uint4 (N : Node_Id; Val : Uint);
2085       pragma Inline (Set_Uint4);
2086
2087       procedure Set_Uint5 (N : Node_Id; Val : Uint);
2088       pragma Inline (Set_Uint5);
2089
2090       procedure Set_Uint8 (N : Node_Id; Val : Uint);
2091       pragma Inline (Set_Uint8);
2092
2093       procedure Set_Uint9 (N : Node_Id; Val : Uint);
2094       pragma Inline (Set_Uint9);
2095
2096       procedure Set_Uint10 (N : Node_Id; Val : Uint);
2097       pragma Inline (Set_Uint10);
2098
2099       procedure Set_Uint11 (N : Node_Id; Val : Uint);
2100       pragma Inline (Set_Uint11);
2101
2102       procedure Set_Uint12 (N : Node_Id; Val : Uint);
2103       pragma Inline (Set_Uint12);
2104
2105       procedure Set_Uint13 (N : Node_Id; Val : Uint);
2106       pragma Inline (Set_Uint13);
2107
2108       procedure Set_Uint14 (N : Node_Id; Val : Uint);
2109       pragma Inline (Set_Uint14);
2110
2111       procedure Set_Uint15 (N : Node_Id; Val : Uint);
2112       pragma Inline (Set_Uint15);
2113
2114       procedure Set_Uint16 (N : Node_Id; Val : Uint);
2115       pragma Inline (Set_Uint16);
2116
2117       procedure Set_Uint17 (N : Node_Id; Val : Uint);
2118       pragma Inline (Set_Uint17);
2119
2120       procedure Set_Uint22 (N : Node_Id; Val : Uint);
2121       pragma Inline (Set_Uint22);
2122
2123       procedure Set_Ureal3 (N : Node_Id; Val : Ureal);
2124       pragma Inline (Set_Ureal3);
2125
2126       procedure Set_Ureal18 (N : Node_Id; Val : Ureal);
2127       pragma Inline (Set_Ureal18);
2128
2129       procedure Set_Ureal21 (N : Node_Id; Val : Ureal);
2130       pragma Inline (Set_Ureal21);
2131
2132       procedure Set_Flag4 (N : Node_Id; Val : Boolean);
2133       pragma Inline (Set_Flag4);
2134
2135       procedure Set_Flag5 (N : Node_Id; Val : Boolean);
2136       pragma Inline (Set_Flag5);
2137
2138       procedure Set_Flag6 (N : Node_Id; Val : Boolean);
2139       pragma Inline (Set_Flag6);
2140
2141       procedure Set_Flag7 (N : Node_Id; Val : Boolean);
2142       pragma Inline (Set_Flag7);
2143
2144       procedure Set_Flag8 (N : Node_Id; Val : Boolean);
2145       pragma Inline (Set_Flag8);
2146
2147       procedure Set_Flag9 (N : Node_Id; Val : Boolean);
2148       pragma Inline (Set_Flag9);
2149
2150       procedure Set_Flag10 (N : Node_Id; Val : Boolean);
2151       pragma Inline (Set_Flag10);
2152
2153       procedure Set_Flag11 (N : Node_Id; Val : Boolean);
2154       pragma Inline (Set_Flag11);
2155
2156       procedure Set_Flag12 (N : Node_Id; Val : Boolean);
2157       pragma Inline (Set_Flag12);
2158
2159       procedure Set_Flag13 (N : Node_Id; Val : Boolean);
2160       pragma Inline (Set_Flag13);
2161
2162       procedure Set_Flag14 (N : Node_Id; Val : Boolean);
2163       pragma Inline (Set_Flag14);
2164
2165       procedure Set_Flag15 (N : Node_Id; Val : Boolean);
2166       pragma Inline (Set_Flag15);
2167
2168       procedure Set_Flag16 (N : Node_Id; Val : Boolean);
2169       pragma Inline (Set_Flag16);
2170
2171       procedure Set_Flag17 (N : Node_Id; Val : Boolean);
2172       pragma Inline (Set_Flag17);
2173
2174       procedure Set_Flag18 (N : Node_Id; Val : Boolean);
2175       pragma Inline (Set_Flag18);
2176
2177       procedure Set_Flag19 (N : Node_Id; Val : Boolean);
2178       pragma Inline (Set_Flag19);
2179
2180       procedure Set_Flag20 (N : Node_Id; Val : Boolean);
2181       pragma Inline (Set_Flag20);
2182
2183       procedure Set_Flag21 (N : Node_Id; Val : Boolean);
2184       pragma Inline (Set_Flag21);
2185
2186       procedure Set_Flag22 (N : Node_Id; Val : Boolean);
2187       pragma Inline (Set_Flag22);
2188
2189       procedure Set_Flag23 (N : Node_Id; Val : Boolean);
2190       pragma Inline (Set_Flag23);
2191
2192       procedure Set_Flag24 (N : Node_Id; Val : Boolean);
2193       pragma Inline (Set_Flag24);
2194
2195       procedure Set_Flag25 (N : Node_Id; Val : Boolean);
2196       pragma Inline (Set_Flag25);
2197
2198       procedure Set_Flag26 (N : Node_Id; Val : Boolean);
2199       pragma Inline (Set_Flag26);
2200
2201       procedure Set_Flag27 (N : Node_Id; Val : Boolean);
2202       pragma Inline (Set_Flag27);
2203
2204       procedure Set_Flag28 (N : Node_Id; Val : Boolean);
2205       pragma Inline (Set_Flag28);
2206
2207       procedure Set_Flag29 (N : Node_Id; Val : Boolean);
2208       pragma Inline (Set_Flag29);
2209
2210       procedure Set_Flag30 (N : Node_Id; Val : Boolean);
2211       pragma Inline (Set_Flag30);
2212
2213       procedure Set_Flag31 (N : Node_Id; Val : Boolean);
2214       pragma Inline (Set_Flag31);
2215
2216       procedure Set_Flag32 (N : Node_Id; Val : Boolean);
2217       pragma Inline (Set_Flag32);
2218
2219       procedure Set_Flag33 (N : Node_Id; Val : Boolean);
2220       pragma Inline (Set_Flag33);
2221
2222       procedure Set_Flag34 (N : Node_Id; Val : Boolean);
2223       pragma Inline (Set_Flag34);
2224
2225       procedure Set_Flag35 (N : Node_Id; Val : Boolean);
2226       pragma Inline (Set_Flag35);
2227
2228       procedure Set_Flag36 (N : Node_Id; Val : Boolean);
2229       pragma Inline (Set_Flag36);
2230
2231       procedure Set_Flag37 (N : Node_Id; Val : Boolean);
2232       pragma Inline (Set_Flag37);
2233
2234       procedure Set_Flag38 (N : Node_Id; Val : Boolean);
2235       pragma Inline (Set_Flag38);
2236
2237       procedure Set_Flag39 (N : Node_Id; Val : Boolean);
2238       pragma Inline (Set_Flag39);
2239
2240       procedure Set_Flag40 (N : Node_Id; Val : Boolean);
2241       pragma Inline (Set_Flag40);
2242
2243       procedure Set_Flag41 (N : Node_Id; Val : Boolean);
2244       pragma Inline (Set_Flag41);
2245
2246       procedure Set_Flag42 (N : Node_Id; Val : Boolean);
2247       pragma Inline (Set_Flag42);
2248
2249       procedure Set_Flag43 (N : Node_Id; Val : Boolean);
2250       pragma Inline (Set_Flag43);
2251
2252       procedure Set_Flag44 (N : Node_Id; Val : Boolean);
2253       pragma Inline (Set_Flag44);
2254
2255       procedure Set_Flag45 (N : Node_Id; Val : Boolean);
2256       pragma Inline (Set_Flag45);
2257
2258       procedure Set_Flag46 (N : Node_Id; Val : Boolean);
2259       pragma Inline (Set_Flag46);
2260
2261       procedure Set_Flag47 (N : Node_Id; Val : Boolean);
2262       pragma Inline (Set_Flag47);
2263
2264       procedure Set_Flag48 (N : Node_Id; Val : Boolean);
2265       pragma Inline (Set_Flag48);
2266
2267       procedure Set_Flag49 (N : Node_Id; Val : Boolean);
2268       pragma Inline (Set_Flag49);
2269
2270       procedure Set_Flag50 (N : Node_Id; Val : Boolean);
2271       pragma Inline (Set_Flag50);
2272
2273       procedure Set_Flag51 (N : Node_Id; Val : Boolean);
2274       pragma Inline (Set_Flag51);
2275
2276       procedure Set_Flag52 (N : Node_Id; Val : Boolean);
2277       pragma Inline (Set_Flag52);
2278
2279       procedure Set_Flag53 (N : Node_Id; Val : Boolean);
2280       pragma Inline (Set_Flag53);
2281
2282       procedure Set_Flag54 (N : Node_Id; Val : Boolean);
2283       pragma Inline (Set_Flag54);
2284
2285       procedure Set_Flag55 (N : Node_Id; Val : Boolean);
2286       pragma Inline (Set_Flag55);
2287
2288       procedure Set_Flag56 (N : Node_Id; Val : Boolean);
2289       pragma Inline (Set_Flag56);
2290
2291       procedure Set_Flag57 (N : Node_Id; Val : Boolean);
2292       pragma Inline (Set_Flag57);
2293
2294       procedure Set_Flag58 (N : Node_Id; Val : Boolean);
2295       pragma Inline (Set_Flag58);
2296
2297       procedure Set_Flag59 (N : Node_Id; Val : Boolean);
2298       pragma Inline (Set_Flag59);
2299
2300       procedure Set_Flag60 (N : Node_Id; Val : Boolean);
2301       pragma Inline (Set_Flag60);
2302
2303       procedure Set_Flag61 (N : Node_Id; Val : Boolean);
2304       pragma Inline (Set_Flag61);
2305
2306       procedure Set_Flag62 (N : Node_Id; Val : Boolean);
2307       pragma Inline (Set_Flag62);
2308
2309       procedure Set_Flag63 (N : Node_Id; Val : Boolean);
2310       pragma Inline (Set_Flag63);
2311
2312       procedure Set_Flag64 (N : Node_Id; Val : Boolean);
2313       pragma Inline (Set_Flag64);
2314
2315       procedure Set_Flag65 (N : Node_Id; Val : Boolean);
2316       pragma Inline (Set_Flag65);
2317
2318       procedure Set_Flag66 (N : Node_Id; Val : Boolean);
2319       pragma Inline (Set_Flag66);
2320
2321       procedure Set_Flag67 (N : Node_Id; Val : Boolean);
2322       pragma Inline (Set_Flag67);
2323
2324       procedure Set_Flag68 (N : Node_Id; Val : Boolean);
2325       pragma Inline (Set_Flag68);
2326
2327       procedure Set_Flag69 (N : Node_Id; Val : Boolean);
2328       pragma Inline (Set_Flag69);
2329
2330       procedure Set_Flag70 (N : Node_Id; Val : Boolean);
2331       pragma Inline (Set_Flag70);
2332
2333       procedure Set_Flag71 (N : Node_Id; Val : Boolean);
2334       pragma Inline (Set_Flag71);
2335
2336       procedure Set_Flag72 (N : Node_Id; Val : Boolean);
2337       pragma Inline (Set_Flag72);
2338
2339       procedure Set_Flag73 (N : Node_Id; Val : Boolean);
2340       pragma Inline (Set_Flag73);
2341
2342       procedure Set_Flag74 (N : Node_Id; Val : Boolean);
2343       pragma Inline (Set_Flag74);
2344
2345       procedure Set_Flag75 (N : Node_Id; Val : Boolean);
2346       pragma Inline (Set_Flag75);
2347
2348       procedure Set_Flag76 (N : Node_Id; Val : Boolean);
2349       pragma Inline (Set_Flag76);
2350
2351       procedure Set_Flag77 (N : Node_Id; Val : Boolean);
2352       pragma Inline (Set_Flag77);
2353
2354       procedure Set_Flag78 (N : Node_Id; Val : Boolean);
2355       pragma Inline (Set_Flag78);
2356
2357       procedure Set_Flag79 (N : Node_Id; Val : Boolean);
2358       pragma Inline (Set_Flag79);
2359
2360       procedure Set_Flag80 (N : Node_Id; Val : Boolean);
2361       pragma Inline (Set_Flag80);
2362
2363       procedure Set_Flag81 (N : Node_Id; Val : Boolean);
2364       pragma Inline (Set_Flag81);
2365
2366       procedure Set_Flag82 (N : Node_Id; Val : Boolean);
2367       pragma Inline (Set_Flag82);
2368
2369       procedure Set_Flag83 (N : Node_Id; Val : Boolean);
2370       pragma Inline (Set_Flag83);
2371
2372       procedure Set_Flag84 (N : Node_Id; Val : Boolean);
2373       pragma Inline (Set_Flag84);
2374
2375       procedure Set_Flag85 (N : Node_Id; Val : Boolean);
2376       pragma Inline (Set_Flag85);
2377
2378       procedure Set_Flag86 (N : Node_Id; Val : Boolean);
2379       pragma Inline (Set_Flag86);
2380
2381       procedure Set_Flag87 (N : Node_Id; Val : Boolean);
2382       pragma Inline (Set_Flag87);
2383
2384       procedure Set_Flag88 (N : Node_Id; Val : Boolean);
2385       pragma Inline (Set_Flag88);
2386
2387       procedure Set_Flag89 (N : Node_Id; Val : Boolean);
2388       pragma Inline (Set_Flag89);
2389
2390       procedure Set_Flag90 (N : Node_Id; Val : Boolean);
2391       pragma Inline (Set_Flag90);
2392
2393       procedure Set_Flag91 (N : Node_Id; Val : Boolean);
2394       pragma Inline (Set_Flag91);
2395
2396       procedure Set_Flag92 (N : Node_Id; Val : Boolean);
2397       pragma Inline (Set_Flag92);
2398
2399       procedure Set_Flag93 (N : Node_Id; Val : Boolean);
2400       pragma Inline (Set_Flag93);
2401
2402       procedure Set_Flag94 (N : Node_Id; Val : Boolean);
2403       pragma Inline (Set_Flag94);
2404
2405       procedure Set_Flag95 (N : Node_Id; Val : Boolean);
2406       pragma Inline (Set_Flag95);
2407
2408       procedure Set_Flag96 (N : Node_Id; Val : Boolean);
2409       pragma Inline (Set_Flag96);
2410
2411       procedure Set_Flag97 (N : Node_Id; Val : Boolean);
2412       pragma Inline (Set_Flag97);
2413
2414       procedure Set_Flag98 (N : Node_Id; Val : Boolean);
2415       pragma Inline (Set_Flag98);
2416
2417       procedure Set_Flag99 (N : Node_Id; Val : Boolean);
2418       pragma Inline (Set_Flag99);
2419
2420       procedure Set_Flag100 (N : Node_Id; Val : Boolean);
2421       pragma Inline (Set_Flag100);
2422
2423       procedure Set_Flag101 (N : Node_Id; Val : Boolean);
2424       pragma Inline (Set_Flag101);
2425
2426       procedure Set_Flag102 (N : Node_Id; Val : Boolean);
2427       pragma Inline (Set_Flag102);
2428
2429       procedure Set_Flag103 (N : Node_Id; Val : Boolean);
2430       pragma Inline (Set_Flag103);
2431
2432       procedure Set_Flag104 (N : Node_Id; Val : Boolean);
2433       pragma Inline (Set_Flag104);
2434
2435       procedure Set_Flag105 (N : Node_Id; Val : Boolean);
2436       pragma Inline (Set_Flag105);
2437
2438       procedure Set_Flag106 (N : Node_Id; Val : Boolean);
2439       pragma Inline (Set_Flag106);
2440
2441       procedure Set_Flag107 (N : Node_Id; Val : Boolean);
2442       pragma Inline (Set_Flag107);
2443
2444       procedure Set_Flag108 (N : Node_Id; Val : Boolean);
2445       pragma Inline (Set_Flag108);
2446
2447       procedure Set_Flag109 (N : Node_Id; Val : Boolean);
2448       pragma Inline (Set_Flag109);
2449
2450       procedure Set_Flag110 (N : Node_Id; Val : Boolean);
2451       pragma Inline (Set_Flag110);
2452
2453       procedure Set_Flag111 (N : Node_Id; Val : Boolean);
2454       pragma Inline (Set_Flag111);
2455
2456       procedure Set_Flag112 (N : Node_Id; Val : Boolean);
2457       pragma Inline (Set_Flag112);
2458
2459       procedure Set_Flag113 (N : Node_Id; Val : Boolean);
2460       pragma Inline (Set_Flag113);
2461
2462       procedure Set_Flag114 (N : Node_Id; Val : Boolean);
2463       pragma Inline (Set_Flag114);
2464
2465       procedure Set_Flag115 (N : Node_Id; Val : Boolean);
2466       pragma Inline (Set_Flag115);
2467
2468       procedure Set_Flag116 (N : Node_Id; Val : Boolean);
2469       pragma Inline (Set_Flag116);
2470
2471       procedure Set_Flag117 (N : Node_Id; Val : Boolean);
2472       pragma Inline (Set_Flag117);
2473
2474       procedure Set_Flag118 (N : Node_Id; Val : Boolean);
2475       pragma Inline (Set_Flag118);
2476
2477       procedure Set_Flag119 (N : Node_Id; Val : Boolean);
2478       pragma Inline (Set_Flag119);
2479
2480       procedure Set_Flag120 (N : Node_Id; Val : Boolean);
2481       pragma Inline (Set_Flag120);
2482
2483       procedure Set_Flag121 (N : Node_Id; Val : Boolean);
2484       pragma Inline (Set_Flag121);
2485
2486       procedure Set_Flag122 (N : Node_Id; Val : Boolean);
2487       pragma Inline (Set_Flag122);
2488
2489       procedure Set_Flag123 (N : Node_Id; Val : Boolean);
2490       pragma Inline (Set_Flag123);
2491
2492       procedure Set_Flag124 (N : Node_Id; Val : Boolean);
2493       pragma Inline (Set_Flag124);
2494
2495       procedure Set_Flag125 (N : Node_Id; Val : Boolean);
2496       pragma Inline (Set_Flag125);
2497
2498       procedure Set_Flag126 (N : Node_Id; Val : Boolean);
2499       pragma Inline (Set_Flag126);
2500
2501       procedure Set_Flag127 (N : Node_Id; Val : Boolean);
2502       pragma Inline (Set_Flag127);
2503
2504       procedure Set_Flag128 (N : Node_Id; Val : Boolean);
2505       pragma Inline (Set_Flag128);
2506
2507       procedure Set_Flag129 (N : Node_Id; Val : Boolean);
2508       pragma Inline (Set_Flag129);
2509
2510       procedure Set_Flag130 (N : Node_Id; Val : Boolean);
2511       pragma Inline (Set_Flag130);
2512
2513       procedure Set_Flag131 (N : Node_Id; Val : Boolean);
2514       pragma Inline (Set_Flag131);
2515
2516       procedure Set_Flag132 (N : Node_Id; Val : Boolean);
2517       pragma Inline (Set_Flag132);
2518
2519       procedure Set_Flag133 (N : Node_Id; Val : Boolean);
2520       pragma Inline (Set_Flag133);
2521
2522       procedure Set_Flag134 (N : Node_Id; Val : Boolean);
2523       pragma Inline (Set_Flag134);
2524
2525       procedure Set_Flag135 (N : Node_Id; Val : Boolean);
2526       pragma Inline (Set_Flag135);
2527
2528       procedure Set_Flag136 (N : Node_Id; Val : Boolean);
2529       pragma Inline (Set_Flag136);
2530
2531       procedure Set_Flag137 (N : Node_Id; Val : Boolean);
2532       pragma Inline (Set_Flag137);
2533
2534       procedure Set_Flag138 (N : Node_Id; Val : Boolean);
2535       pragma Inline (Set_Flag138);
2536
2537       procedure Set_Flag139 (N : Node_Id; Val : Boolean);
2538       pragma Inline (Set_Flag139);
2539
2540       procedure Set_Flag140 (N : Node_Id; Val : Boolean);
2541       pragma Inline (Set_Flag140);
2542
2543       procedure Set_Flag141 (N : Node_Id; Val : Boolean);
2544       pragma Inline (Set_Flag141);
2545
2546       procedure Set_Flag142 (N : Node_Id; Val : Boolean);
2547       pragma Inline (Set_Flag142);
2548
2549       procedure Set_Flag143 (N : Node_Id; Val : Boolean);
2550       pragma Inline (Set_Flag143);
2551
2552       procedure Set_Flag144 (N : Node_Id; Val : Boolean);
2553       pragma Inline (Set_Flag144);
2554
2555       procedure Set_Flag145 (N : Node_Id; Val : Boolean);
2556       pragma Inline (Set_Flag145);
2557
2558       procedure Set_Flag146 (N : Node_Id; Val : Boolean);
2559       pragma Inline (Set_Flag146);
2560
2561       procedure Set_Flag147 (N : Node_Id; Val : Boolean);
2562       pragma Inline (Set_Flag147);
2563
2564       procedure Set_Flag148 (N : Node_Id; Val : Boolean);
2565       pragma Inline (Set_Flag148);
2566
2567       procedure Set_Flag149 (N : Node_Id; Val : Boolean);
2568       pragma Inline (Set_Flag149);
2569
2570       procedure Set_Flag150 (N : Node_Id; Val : Boolean);
2571       pragma Inline (Set_Flag150);
2572
2573       procedure Set_Flag151 (N : Node_Id; Val : Boolean);
2574       pragma Inline (Set_Flag151);
2575
2576       procedure Set_Flag152 (N : Node_Id; Val : Boolean);
2577       pragma Inline (Set_Flag152);
2578
2579       procedure Set_Flag153 (N : Node_Id; Val : Boolean);
2580       pragma Inline (Set_Flag153);
2581
2582       procedure Set_Flag154 (N : Node_Id; Val : Boolean);
2583       pragma Inline (Set_Flag154);
2584
2585       procedure Set_Flag155 (N : Node_Id; Val : Boolean);
2586       pragma Inline (Set_Flag155);
2587
2588       procedure Set_Flag156 (N : Node_Id; Val : Boolean);
2589       pragma Inline (Set_Flag156);
2590
2591       procedure Set_Flag157 (N : Node_Id; Val : Boolean);
2592       pragma Inline (Set_Flag157);
2593
2594       procedure Set_Flag158 (N : Node_Id; Val : Boolean);
2595       pragma Inline (Set_Flag158);
2596
2597       procedure Set_Flag159 (N : Node_Id; Val : Boolean);
2598       pragma Inline (Set_Flag159);
2599
2600       procedure Set_Flag160 (N : Node_Id; Val : Boolean);
2601       pragma Inline (Set_Flag160);
2602
2603       procedure Set_Flag161 (N : Node_Id; Val : Boolean);
2604       pragma Inline (Set_Flag161);
2605
2606       procedure Set_Flag162 (N : Node_Id; Val : Boolean);
2607       pragma Inline (Set_Flag162);
2608
2609       procedure Set_Flag163 (N : Node_Id; Val : Boolean);
2610       pragma Inline (Set_Flag163);
2611
2612       procedure Set_Flag164 (N : Node_Id; Val : Boolean);
2613       pragma Inline (Set_Flag164);
2614
2615       procedure Set_Flag165 (N : Node_Id; Val : Boolean);
2616       pragma Inline (Set_Flag165);
2617
2618       procedure Set_Flag166 (N : Node_Id; Val : Boolean);
2619       pragma Inline (Set_Flag166);
2620
2621       procedure Set_Flag167 (N : Node_Id; Val : Boolean);
2622       pragma Inline (Set_Flag167);
2623
2624       procedure Set_Flag168 (N : Node_Id; Val : Boolean);
2625       pragma Inline (Set_Flag168);
2626
2627       procedure Set_Flag169 (N : Node_Id; Val : Boolean);
2628       pragma Inline (Set_Flag169);
2629
2630       procedure Set_Flag170 (N : Node_Id; Val : Boolean);
2631       pragma Inline (Set_Flag170);
2632
2633       procedure Set_Flag171 (N : Node_Id; Val : Boolean);
2634       pragma Inline (Set_Flag171);
2635
2636       procedure Set_Flag172 (N : Node_Id; Val : Boolean);
2637       pragma Inline (Set_Flag172);
2638
2639       procedure Set_Flag173 (N : Node_Id; Val : Boolean);
2640       pragma Inline (Set_Flag173);
2641
2642       procedure Set_Flag174 (N : Node_Id; Val : Boolean);
2643       pragma Inline (Set_Flag174);
2644
2645       procedure Set_Flag175 (N : Node_Id; Val : Boolean);
2646       pragma Inline (Set_Flag175);
2647
2648       procedure Set_Flag176 (N : Node_Id; Val : Boolean);
2649       pragma Inline (Set_Flag176);
2650
2651       procedure Set_Flag177 (N : Node_Id; Val : Boolean);
2652       pragma Inline (Set_Flag177);
2653
2654       procedure Set_Flag178 (N : Node_Id; Val : Boolean);
2655       pragma Inline (Set_Flag178);
2656
2657       procedure Set_Flag179 (N : Node_Id; Val : Boolean);
2658       pragma Inline (Set_Flag179);
2659
2660       procedure Set_Flag180 (N : Node_Id; Val : Boolean);
2661       pragma Inline (Set_Flag180);
2662
2663       procedure Set_Flag181 (N : Node_Id; Val : Boolean);
2664       pragma Inline (Set_Flag181);
2665
2666       procedure Set_Flag182 (N : Node_Id; Val : Boolean);
2667       pragma Inline (Set_Flag182);
2668
2669       procedure Set_Flag183 (N : Node_Id; Val : Boolean);
2670       pragma Inline (Set_Flag183);
2671
2672       procedure Set_Flag184 (N : Node_Id; Val : Boolean);
2673       pragma Inline (Set_Flag184);
2674
2675       procedure Set_Flag185 (N : Node_Id; Val : Boolean);
2676       pragma Inline (Set_Flag185);
2677
2678       procedure Set_Flag186 (N : Node_Id; Val : Boolean);
2679       pragma Inline (Set_Flag186);
2680
2681       procedure Set_Flag187 (N : Node_Id; Val : Boolean);
2682       pragma Inline (Set_Flag187);
2683
2684       procedure Set_Flag188 (N : Node_Id; Val : Boolean);
2685       pragma Inline (Set_Flag188);
2686
2687       procedure Set_Flag189 (N : Node_Id; Val : Boolean);
2688       pragma Inline (Set_Flag189);
2689
2690       procedure Set_Flag190 (N : Node_Id; Val : Boolean);
2691       pragma Inline (Set_Flag190);
2692
2693       procedure Set_Flag191 (N : Node_Id; Val : Boolean);
2694       pragma Inline (Set_Flag191);
2695
2696       procedure Set_Flag192 (N : Node_Id; Val : Boolean);
2697       pragma Inline (Set_Flag192);
2698
2699       procedure Set_Flag193 (N : Node_Id; Val : Boolean);
2700       pragma Inline (Set_Flag193);
2701
2702       procedure Set_Flag194 (N : Node_Id; Val : Boolean);
2703       pragma Inline (Set_Flag194);
2704
2705       procedure Set_Flag195 (N : Node_Id; Val : Boolean);
2706       pragma Inline (Set_Flag195);
2707
2708       procedure Set_Flag196 (N : Node_Id; Val : Boolean);
2709       pragma Inline (Set_Flag196);
2710
2711       procedure Set_Flag197 (N : Node_Id; Val : Boolean);
2712       pragma Inline (Set_Flag197);
2713
2714       procedure Set_Flag198 (N : Node_Id; Val : Boolean);
2715       pragma Inline (Set_Flag198);
2716
2717       procedure Set_Flag199 (N : Node_Id; Val : Boolean);
2718       pragma Inline (Set_Flag199);
2719
2720       procedure Set_Flag200 (N : Node_Id; Val : Boolean);
2721       pragma Inline (Set_Flag200);
2722
2723       procedure Set_Flag201 (N : Node_Id; Val : Boolean);
2724       pragma Inline (Set_Flag201);
2725
2726       procedure Set_Flag202 (N : Node_Id; Val : Boolean);
2727       pragma Inline (Set_Flag202);
2728
2729       procedure Set_Flag203 (N : Node_Id; Val : Boolean);
2730       pragma Inline (Set_Flag203);
2731
2732       procedure Set_Flag204 (N : Node_Id; Val : Boolean);
2733       pragma Inline (Set_Flag204);
2734
2735       procedure Set_Flag205 (N : Node_Id; Val : Boolean);
2736       pragma Inline (Set_Flag205);
2737
2738       procedure Set_Flag206 (N : Node_Id; Val : Boolean);
2739       pragma Inline (Set_Flag206);
2740
2741       procedure Set_Flag207 (N : Node_Id; Val : Boolean);
2742       pragma Inline (Set_Flag207);
2743
2744       procedure Set_Flag208 (N : Node_Id; Val : Boolean);
2745       pragma Inline (Set_Flag208);
2746
2747       procedure Set_Flag209 (N : Node_Id; Val : Boolean);
2748       pragma Inline (Set_Flag209);
2749
2750       procedure Set_Flag210 (N : Node_Id; Val : Boolean);
2751       pragma Inline (Set_Flag210);
2752
2753       procedure Set_Flag211 (N : Node_Id; Val : Boolean);
2754       pragma Inline (Set_Flag211);
2755
2756       procedure Set_Flag212 (N : Node_Id; Val : Boolean);
2757       pragma Inline (Set_Flag212);
2758
2759       procedure Set_Flag213 (N : Node_Id; Val : Boolean);
2760       pragma Inline (Set_Flag213);
2761
2762       procedure Set_Flag214 (N : Node_Id; Val : Boolean);
2763       pragma Inline (Set_Flag214);
2764
2765       procedure Set_Flag215 (N : Node_Id; Val : Boolean);
2766       pragma Inline (Set_Flag215);
2767
2768       procedure Set_Flag216 (N : Node_Id; Val : Boolean);
2769       pragma Inline (Set_Flag216);
2770
2771       procedure Set_Flag217 (N : Node_Id; Val : Boolean);
2772       pragma Inline (Set_Flag217);
2773
2774       procedure Set_Flag218 (N : Node_Id; Val : Boolean);
2775       pragma Inline (Set_Flag218);
2776
2777       procedure Set_Flag219 (N : Node_Id; Val : Boolean);
2778       pragma Inline (Set_Flag219);
2779
2780       procedure Set_Flag220 (N : Node_Id; Val : Boolean);
2781       pragma Inline (Set_Flag220);
2782
2783       procedure Set_Flag221 (N : Node_Id; Val : Boolean);
2784       pragma Inline (Set_Flag221);
2785
2786       procedure Set_Flag222 (N : Node_Id; Val : Boolean);
2787       pragma Inline (Set_Flag222);
2788
2789       procedure Set_Flag223 (N : Node_Id; Val : Boolean);
2790       pragma Inline (Set_Flag223);
2791
2792       procedure Set_Flag224 (N : Node_Id; Val : Boolean);
2793       pragma Inline (Set_Flag224);
2794
2795       procedure Set_Flag225 (N : Node_Id; Val : Boolean);
2796       pragma Inline (Set_Flag225);
2797
2798       procedure Set_Flag226 (N : Node_Id; Val : Boolean);
2799       pragma Inline (Set_Flag226);
2800
2801       procedure Set_Flag227 (N : Node_Id; Val : Boolean);
2802       pragma Inline (Set_Flag227);
2803
2804       procedure Set_Flag228 (N : Node_Id; Val : Boolean);
2805       pragma Inline (Set_Flag228);
2806
2807       procedure Set_Flag229 (N : Node_Id; Val : Boolean);
2808       pragma Inline (Set_Flag229);
2809
2810       procedure Set_Flag230 (N : Node_Id; Val : Boolean);
2811       pragma Inline (Set_Flag230);
2812
2813       procedure Set_Flag231 (N : Node_Id; Val : Boolean);
2814       pragma Inline (Set_Flag231);
2815
2816       procedure Set_Flag232 (N : Node_Id; Val : Boolean);
2817       pragma Inline (Set_Flag232);
2818
2819       procedure Set_Flag233 (N : Node_Id; Val : Boolean);
2820       pragma Inline (Set_Flag233);
2821
2822       procedure Set_Flag234 (N : Node_Id; Val : Boolean);
2823       pragma Inline (Set_Flag234);
2824
2825       procedure Set_Flag235 (N : Node_Id; Val : Boolean);
2826       pragma Inline (Set_Flag235);
2827
2828       procedure Set_Flag236 (N : Node_Id; Val : Boolean);
2829       pragma Inline (Set_Flag236);
2830
2831       procedure Set_Flag237 (N : Node_Id; Val : Boolean);
2832       pragma Inline (Set_Flag237);
2833
2834       procedure Set_Flag238 (N : Node_Id; Val : Boolean);
2835       pragma Inline (Set_Flag238);
2836
2837       procedure Set_Flag239 (N : Node_Id; Val : Boolean);
2838       pragma Inline (Set_Flag239);
2839
2840       procedure Set_Flag240 (N : Node_Id; Val : Boolean);
2841       pragma Inline (Set_Flag240);
2842
2843       procedure Set_Flag241 (N : Node_Id; Val : Boolean);
2844       pragma Inline (Set_Flag241);
2845
2846       procedure Set_Flag242 (N : Node_Id; Val : Boolean);
2847       pragma Inline (Set_Flag242);
2848
2849       procedure Set_Flag243 (N : Node_Id; Val : Boolean);
2850       pragma Inline (Set_Flag243);
2851
2852       procedure Set_Flag244 (N : Node_Id; Val : Boolean);
2853       pragma Inline (Set_Flag244);
2854
2855       procedure Set_Flag245 (N : Node_Id; Val : Boolean);
2856       pragma Inline (Set_Flag245);
2857
2858       procedure Set_Flag246 (N : Node_Id; Val : Boolean);
2859       pragma Inline (Set_Flag246);
2860
2861       procedure Set_Flag247 (N : Node_Id; Val : Boolean);
2862       pragma Inline (Set_Flag247);
2863
2864       --  The following versions of Set_Noden also set the parent
2865       --  pointer of the referenced node if it is non_Empty
2866
2867       procedure Set_Node1_With_Parent (N : Node_Id; Val : Node_Id);
2868       pragma Inline (Set_Node1_With_Parent);
2869
2870       procedure Set_Node2_With_Parent (N : Node_Id; Val : Node_Id);
2871       pragma Inline (Set_Node2_With_Parent);
2872
2873       procedure Set_Node3_With_Parent (N : Node_Id; Val : Node_Id);
2874       pragma Inline (Set_Node3_With_Parent);
2875
2876       procedure Set_Node4_With_Parent (N : Node_Id; Val : Node_Id);
2877       pragma Inline (Set_Node4_With_Parent);
2878
2879       procedure Set_Node5_With_Parent (N : Node_Id; Val : Node_Id);
2880       pragma Inline (Set_Node5_With_Parent);
2881
2882       --  The following versions of Set_Listn also set the parent pointer of
2883       --  the referenced node if it is non_Empty. The procedures for List6
2884       --  to List12 can only be applied to nodes which have an extension.
2885
2886       procedure Set_List1_With_Parent (N : Node_Id; Val : List_Id);
2887       pragma Inline (Set_List1_With_Parent);
2888
2889       procedure Set_List2_With_Parent (N : Node_Id; Val : List_Id);
2890       pragma Inline (Set_List2_With_Parent);
2891
2892       procedure Set_List3_With_Parent (N : Node_Id; Val : List_Id);
2893       pragma Inline (Set_List3_With_Parent);
2894
2895       procedure Set_List4_With_Parent (N : Node_Id; Val : List_Id);
2896       pragma Inline (Set_List4_With_Parent);
2897
2898       procedure Set_List5_With_Parent (N : Node_Id; Val : List_Id);
2899       pragma Inline (Set_List5_With_Parent);
2900
2901    end Unchecked_Access;
2902
2903    -----------------------------
2904    -- Private Part Subpackage --
2905    -----------------------------
2906
2907    --  The following package contains the definition of the data structure
2908    --  used by the implementation of the Atree package. Logically it really
2909    --  corresponds to the private part, hence the name. The reason that it
2910    --  is defined as a sub-package is to allow special access from clients
2911    --  that need to see the internals of the data structures.
2912
2913    package Atree_Private_Part is
2914
2915       -------------------------
2916       -- Tree Representation --
2917       -------------------------
2918
2919       --  The nodes of the tree are stored in a table (i.e. an array). In the
2920       --  case of extended nodes five consecutive components in the array are
2921       --  used. There are thus two formats for array components. One is used
2922       --  for non-extended nodes, and for the first component of extended
2923       --  nodes. The other is used for the extension parts (second, third,
2924       --  fourth and fifth components) of an extended node. A variant record
2925       --  structure is used to distinguish the two formats.
2926
2927       type Node_Record (Is_Extension : Boolean := False) is record
2928
2929          --  Logically, the only field in the common part is the above
2930          --  Is_Extension discriminant (a single bit). However, Gigi cannot
2931          --  yet handle such a structure, so we fill out the common part of
2932          --  the record with fields that are used in different ways for
2933          --  normal nodes and node extensions.
2934
2935          Pflag1, Pflag2 : Boolean;
2936          --  The Paren_Count field is represented using two boolean flags,
2937          --  where Pflag1 is worth 1, and Pflag2 is worth 2. This is done
2938          --  because we need to be easily able to reuse this field for
2939          --  extra flags in the extended node case.
2940
2941          In_List : Boolean;
2942          --  Flag used to indicate if node is a member of a list.
2943          --  This field is considered private to the Atree package.
2944
2945          Unused_1 : Boolean;
2946          --  Currently unused flag
2947
2948          Rewrite_Ins : Boolean;
2949          --  Flag set by Mark_Rewrite_Insertion procedure.
2950          --  This field is considered private to the Atree package.
2951
2952          Analyzed : Boolean;
2953          --  Flag to indicate the node has been analyzed (and expanded)
2954
2955          Comes_From_Source : Boolean;
2956          --  Flag to indicate that node comes from the source program (i.e.
2957          --  was built by the parser or scanner, not the analyzer or expander).
2958
2959          Error_Posted : Boolean;
2960          --  Flag to indicate that an error message has been posted on the
2961          --  node (to avoid duplicate flags on the same node)
2962
2963          Flag4  : Boolean;
2964          Flag5  : Boolean;
2965          Flag6  : Boolean;
2966          Flag7  : Boolean;
2967          Flag8  : Boolean;
2968          Flag9  : Boolean;
2969          Flag10 : Boolean;
2970          Flag11 : Boolean;
2971          Flag12 : Boolean;
2972          Flag13 : Boolean;
2973          Flag14 : Boolean;
2974          Flag15 : Boolean;
2975          Flag16 : Boolean;
2976          Flag17 : Boolean;
2977          Flag18 : Boolean;
2978          --  The eighteen flags for a normal node
2979
2980          --  The above fields are used as follows in components 2-4 of
2981          --  an extended node entry. These fields are not currently
2982          --  used in component 5 (where we still have lots of room!)
2983
2984          --    In_List            used as  Flag19, Flag40, Flag129
2985          --    Unused_1           used as  Flag20, Flag41, Flag130
2986          --    Rewrite_Ins        used as  Flag21, Flag42, Flag131
2987          --    Analyzed           used as  Flag22, Flag43, Flag132
2988          --    Comes_From_Source  used as  Flag23, Flag44, Flag133
2989          --    Error_Posted       used as  Flag24, Flag45, Flag134
2990          --    Flag4              used as  Flag25, Flag46, Flag135
2991          --    Flag5              used as  Flag26, Flag47, Flag136
2992          --    Flag6              used as  Flag27, Flag48, Flag137
2993          --    Flag7              used as  Flag28, Flag49, Flag138
2994          --    Flag8              used as  Flag29, Flag50, Flag139
2995          --    Flag9              used as  Flag30, Flag51, Flag140
2996          --    Flag10             used as  Flag31, Flag52, Flag141
2997          --    Flag11             used as  Flag32, Flag53, Flag142
2998          --    Flag12             used as  Flag33, Flag54, Flag143
2999          --    Flag13             used as  Flag34, Flag55, Flag144
3000          --    Flag14             used as  Flag35, Flag56, Flag145
3001          --    Flag15             used as  Flag36, Flag57, Flag146
3002          --    Flag16             used as  Flag37, Flag58, Flag147
3003          --    Flag17             used as  Flag38, Flag59, Flag148
3004          --    Flag18             used as  Flag39, Flag60, Flag149
3005          --    Pflag1             used as  Flag61, Flag62, Flag150
3006          --    Pflag2             used as  Flag63, Flag64, Flag151
3007
3008          Nkind : Node_Kind;
3009          --  For a non-extended node, or the initial section of an extended
3010          --  node, this field holds the Node_Kind value. For an extended node,
3011          --  The Nkind field is used as follows:
3012          --
3013          --     Second entry: holds the Ekind field of the entity
3014          --     Third entry:  holds 8 additional flags (Flag65-Flag72)
3015          --     Fourth entry: not currently used
3016
3017          --  Now finally (on an 32-bit boundary!) comes the variant part
3018
3019          case Is_Extension is
3020
3021             --  Non-extended node, or first component of extended node
3022
3023             when False =>
3024
3025                Sloc : Source_Ptr;
3026                --  Source location for this node
3027
3028                Link : Union_Id;
3029                --  This field is used either as the Parent pointer (if In_List
3030                --  is False), or to point to the list header (if In_List is
3031                --  True). This field is considered private and can be modified
3032                --  only by Atree or by Nlists.
3033
3034                Field1 : Union_Id;
3035                Field2 : Union_Id;
3036                Field3 : Union_Id;
3037                Field4 : Union_Id;
3038                Field5 : Union_Id;
3039                --  Five general use fields, which can contain Node_Id, List_Id,
3040                --  Elist_Id, String_Id, or Name_Id values depending on the
3041                --  values in Nkind and (for extended nodes), in Ekind. See
3042                --  packages Sinfo and Einfo for details of their use.
3043
3044             --  Extension (second component) of extended node
3045
3046             when True =>
3047
3048                Field6  : Union_Id;
3049                Field7  : Union_Id;
3050                Field8  : Union_Id;
3051                Field9  : Union_Id;
3052                Field10 : Union_Id;
3053                Field11 : Union_Id;
3054                Field12 : Union_Id;
3055                --  Seven additional general fields available only for entities
3056                --  See package Einfo for details of their use (which depends
3057                --  on the value in the Ekind field).
3058
3059             --  In the third component, the extension format as described
3060             --  above is used to hold additional general fields and flags
3061             --  as follows:
3062
3063             --    Field6-11      Holds Field13-Field18
3064             --    Field12        Holds Flag73-Flag96 and Convention
3065
3066             --  In the fourth component, the extension format as described
3067             --  above is used to hold additional general fields and flags
3068             --  as follows:
3069
3070             --    Field6-10      Holds Field19-Field23
3071             --    Field11        Holds Flag152-Flag183
3072             --    Field12        Holds Flag97-Flag128
3073
3074             --  In the fifth component, the extension format as described
3075             --  above is used to hold additional general fields and flags
3076             --  as follows:
3077
3078             --    Field6-10      Holds Field24-Field28
3079             --    Field11        Holds Flag184-Flag215
3080             --    Field12        Holds Flag216-Flag247
3081
3082          end case;
3083       end record;
3084
3085       pragma Pack (Node_Record);
3086       for Node_Record'Size use 8*32;
3087       for Node_Record'Alignment use 4;
3088
3089       function E_To_N is new Unchecked_Conversion (Entity_Kind, Node_Kind);
3090       function N_To_E is new Unchecked_Conversion (Node_Kind, Entity_Kind);
3091
3092       --  Default value used to initialize default nodes. Note that some of the
3093       --  fields get overwritten, and in particular, Nkind always gets reset.
3094
3095       Default_Node : Node_Record := (
3096          Is_Extension      => False,
3097          Pflag1            => False,
3098          Pflag2            => False,
3099          In_List           => False,
3100          Unused_1          => False,
3101          Rewrite_Ins       => False,
3102          Analyzed          => False,
3103          Comes_From_Source => False,
3104          --  modified by Set_Comes_From_Source_Default
3105          Error_Posted      => False,
3106          Flag4             => False,
3107
3108          Flag5             => False,
3109          Flag6             => False,
3110          Flag7             => False,
3111          Flag8             => False,
3112          Flag9             => False,
3113          Flag10            => False,
3114          Flag11            => False,
3115          Flag12            => False,
3116
3117          Flag13            => False,
3118          Flag14            => False,
3119          Flag15            => False,
3120          Flag16            => False,
3121          Flag17            => False,
3122          Flag18            => False,
3123
3124          Nkind             => N_Unused_At_Start,
3125
3126          Sloc              => No_Location,
3127          Link              => Empty_List_Or_Node,
3128          Field1            => Empty_List_Or_Node,
3129          Field2            => Empty_List_Or_Node,
3130          Field3            => Empty_List_Or_Node,
3131          Field4            => Empty_List_Or_Node,
3132          Field5            => Empty_List_Or_Node);
3133
3134       --  Default value used to initialize node extensions (i.e. the second
3135       --  and third and fourth components of an extended node). Note we are
3136       --  cheating a bit here when it comes to Node12, which really holds
3137       --  flags an (for the third component), the convention. But it works
3138       --  because Empty, False, Convention_Ada, all happen to be all zero bits.
3139
3140       Default_Node_Extension : constant Node_Record := (
3141          Is_Extension      => True,
3142          Pflag1            => False,
3143          Pflag2            => False,
3144          In_List           => False,
3145          Unused_1          => False,
3146          Rewrite_Ins       => False,
3147          Analyzed          => False,
3148          Comes_From_Source => False,
3149          Error_Posted      => False,
3150          Flag4             => False,
3151
3152          Flag5             => False,
3153          Flag6             => False,
3154          Flag7             => False,
3155          Flag8             => False,
3156          Flag9             => False,
3157          Flag10            => False,
3158          Flag11            => False,
3159          Flag12            => False,
3160
3161          Flag13            => False,
3162          Flag14            => False,
3163          Flag15            => False,
3164          Flag16            => False,
3165          Flag17            => False,
3166          Flag18            => False,
3167
3168          Nkind             => E_To_N (E_Void),
3169
3170          Field6            => Empty_List_Or_Node,
3171          Field7            => Empty_List_Or_Node,
3172          Field8            => Empty_List_Or_Node,
3173          Field9            => Empty_List_Or_Node,
3174          Field10           => Empty_List_Or_Node,
3175          Field11           => Empty_List_Or_Node,
3176          Field12           => Empty_List_Or_Node);
3177
3178       --  The following defines the extendable array used for the nodes table
3179       --  Nodes with extensions use five consecutive entries in the array
3180
3181       package Nodes is new Table.Table (
3182         Table_Component_Type => Node_Record,
3183         Table_Index_Type     => Node_Id'Base,
3184         Table_Low_Bound      => First_Node_Id,
3185         Table_Initial        => Alloc.Nodes_Initial,
3186         Table_Increment      => Alloc.Nodes_Increment,
3187         Table_Name           => "Nodes");
3188
3189    end Atree_Private_Part;
3190
3191 end Atree;