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) 1992-2010, 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 Report_Proc is access procedure (Target : Node_Id; Source : Node_Id);
 465
 466    procedure Set_Reporting_Proc (P : Report_Proc);
 467    --  Register a procedure that is invoked when a node is allocated, replaced
 468    --  or rewritten.
 469
 470    type Traverse_Result is (Abandon, OK, OK_Orig, Skip);
 471    --  This is the type of the result returned by the Process function passed
 472    --  to Traverse_Func and Traverse_Proc. See below for details.
 473
 474    subtype Traverse_Final_Result is Traverse_Result range Abandon .. OK;
 475    --  This is the type of the final result returned Traverse_Func, based on
 476    --  the results of Process calls. See below for details.
 477
 478    generic
 479      with function Process (N : Node_Id) return Traverse_Result is <>;
 480    function Traverse_Func (Node : Node_Id) return Traverse_Final_Result;
 481    --  This is a generic function that, given the parent node for a subtree,
 482    --  traverses all syntactic nodes of this tree, calling the given function
 483    --  Process on each one, in pre order (i.e. top-down). The order of
 484    --  traversing subtrees is arbitrary. The traversal is controlled as follows
 485    --  by the result returned by Process:
 486
 487    --    OK       The traversal continues normally with the syntactic
 488    --             children of the node just processed.
 489
 490    --    OK_Orig  The traversal continues normally with the syntactic
 491    --             children of the original node of the node just processed.
 492
 493    --    Skip     The children of the node just processed are skipped and
 494    --             excluded from the traversal, but otherwise processing
 495    --             continues elsewhere in the tree.
 496
 497    --    Abandon  The entire traversal is immediately abandoned, and the
 498    --             original call to Traverse returns Abandon.
 499
 500    --  The result returned by Traverse is Abandon if processing was terminated
 501    --  by a call to Process returning Abandon, otherwise it is OK (meaning that
 502    --  all calls to process returned either OK, OK_Orig, or Skip).
 503
 504    generic
 505      with function Process (N : Node_Id) return Traverse_Result is <>;
 506    procedure Traverse_Proc (Node : Node_Id);
 507    pragma Inline (Traverse_Proc);
 508    --  This is the same as Traverse_Func except that no result is returned,
 509    --  i.e. Traverse_Func is called and the result is simply discarded.
 510
 511    ---------------------------
 512    -- Node Access Functions --
 513    ---------------------------
 514
 515    --  The following functions return the contents of the indicated field of
 516    --  the node referenced by the argument, which is a Node_Id.
 517
 518    function Nkind             (N : Node_Id) return Node_Kind;
 519    pragma Inline (Nkind);
 520
 521    function Analyzed          (N : Node_Id) return Boolean;
 522    pragma Inline (Analyzed);
 523
 524    function Comes_From_Source (N : Node_Id) return Boolean;
 525    pragma Inline (Comes_From_Source);
 526
 527    function Error_Posted      (N : Node_Id) return Boolean;
 528    pragma Inline (Error_Posted);
 529
 530    function Sloc              (N : Node_Id) return Source_Ptr;
 531    pragma Inline (Sloc);
 532
 533    function Paren_Count       (N : Node_Id) return Nat;
 534    pragma Inline (Paren_Count);
 535
 536    function Parent            (N : Node_Id) return Node_Id;
 537    pragma Inline (Parent);
 538    --  Returns the parent of a node if the node is not a list member, or
 539    --  else the parent of the list containing the node if the node is a
 540    --  list member.
 541
 542    function No                (N : Node_Id) return Boolean;
 543    pragma Inline (No);
 544    --  Tests given Id for equality with the Empty node. This allows notations
 545    --  like "if No (Variant_Part)" as opposed to "if Variant_Part = Empty".
 546
 547    function Present           (N : Node_Id) return Boolean;
 548    pragma Inline (Present);
 549    --  Tests given Id for inequality with the Empty node. This allows notations
 550    --  like "if Present (Statement)" as opposed to "if Statement /= Empty".
 551
 552    ---------------------
 553    -- Node_Kind Tests --
 554    ---------------------
 555
 556    --  These are like the functions in Sinfo, but the first argument is a
 557    --  Node_Id, and the tested field is Nkind (N).
 558
 559    function Nkind_In
 560      (N  : Node_Id;
 561       V1 : Node_Kind;
 562       V2 : Node_Kind) return Boolean;
 563
 564    function Nkind_In
 565      (N  : Node_Id;
 566       V1 : Node_Kind;
 567       V2 : Node_Kind;
 568       V3 : Node_Kind) return Boolean;
 569
 570    function Nkind_In
 571      (N  : Node_Id;
 572       V1 : Node_Kind;
 573       V2 : Node_Kind;
 574       V3 : Node_Kind;
 575       V4 : Node_Kind) return Boolean;
 576
 577    function Nkind_In
 578      (N  : Node_Id;
 579       V1 : Node_Kind;
 580       V2 : Node_Kind;
 581       V3 : Node_Kind;
 582       V4 : Node_Kind;
 583       V5 : Node_Kind) return Boolean;
 584
 585    function Nkind_In
 586      (N  : Node_Id;
 587       V1 : Node_Kind;
 588       V2 : Node_Kind;
 589       V3 : Node_Kind;
 590       V4 : Node_Kind;
 591       V5 : Node_Kind;
 592       V6 : 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) return Boolean;
 603
 604    function Nkind_In
 605      (N  : Node_Id;
 606       V1 : Node_Kind;
 607       V2 : Node_Kind;
 608       V3 : Node_Kind;
 609       V4 : Node_Kind;
 610       V5 : Node_Kind;
 611       V6 : Node_Kind;
 612       V7 : Node_Kind;
 613       V8 : Node_Kind) return Boolean;
 614
 615    function Nkind_In
 616      (N  : Node_Id;
 617       V1 : Node_Kind;
 618       V2 : Node_Kind;
 619       V3 : Node_Kind;
 620       V4 : Node_Kind;
 621       V5 : Node_Kind;
 622       V6 : Node_Kind;
 623       V7 : Node_Kind;
 624       V8 : Node_Kind;
 625       V9 : Node_Kind) return Boolean;
 626
 627    pragma Inline (Nkind_In);
 628    --  Inline all above functions
 629
 630    -----------------------
 631    -- Entity_Kind_Tests --
 632    -----------------------
 633
 634    --  Utility functions to test whether an Entity_Kind value, either given
 635    --  directly as the first argument, or the Ekind field of an Entity give
 636    --  as the first argument, matches any of the given list of Entity_Kind
 637    --  values. Return True if any match, False if no match.
 638
 639    function Ekind_In
 640      (E  : Entity_Id;
 641       V1 : Entity_Kind;
 642       V2 : Entity_Kind) return Boolean;
 643
 644    function Ekind_In
 645      (E  : Entity_Id;
 646       V1 : Entity_Kind;
 647       V2 : Entity_Kind;
 648       V3 : Entity_Kind) return Boolean;
 649
 650    function Ekind_In
 651      (E  : Entity_Id;
 652       V1 : Entity_Kind;
 653       V2 : Entity_Kind;
 654       V3 : Entity_Kind;
 655       V4 : Entity_Kind) return Boolean;
 656
 657    function Ekind_In
 658      (E  : Entity_Id;
 659       V1 : Entity_Kind;
 660       V2 : Entity_Kind;
 661       V3 : Entity_Kind;
 662       V4 : Entity_Kind;
 663       V5 : Entity_Kind) return Boolean;
 664
 665    function Ekind_In
 666      (E  : Entity_Id;
 667       V1 : Entity_Kind;
 668       V2 : Entity_Kind;
 669       V3 : Entity_Kind;
 670       V4 : Entity_Kind;
 671       V5 : Entity_Kind;
 672       V6 : Entity_Kind) return Boolean;
 673
 674    function Ekind_In
 675      (T  : Entity_Kind;
 676       V1 : Entity_Kind;
 677       V2 : Entity_Kind) return Boolean;
 678
 679    function Ekind_In
 680      (T  : Entity_Kind;
 681       V1 : Entity_Kind;
 682       V2 : Entity_Kind;
 683       V3 : Entity_Kind) return Boolean;
 684
 685    function Ekind_In
 686      (T  : Entity_Kind;
 687       V1 : Entity_Kind;
 688       V2 : Entity_Kind;
 689       V3 : Entity_Kind;
 690       V4 : Entity_Kind) return Boolean;
 691
 692    function Ekind_In
 693      (T  : Entity_Kind;
 694       V1 : Entity_Kind;
 695       V2 : Entity_Kind;
 696       V3 : Entity_Kind;
 697       V4 : Entity_Kind;
 698       V5 : Entity_Kind) return Boolean;
 699
 700    function Ekind_In
 701      (T  : Entity_Kind;
 702       V1 : Entity_Kind;
 703       V2 : Entity_Kind;
 704       V3 : Entity_Kind;
 705       V4 : Entity_Kind;
 706       V5 : Entity_Kind;
 707       V6 : Entity_Kind) return Boolean;
 708
 709    pragma Inline (Ekind_In);
 710    --  Inline all above functions
 711
 712    -----------------------------
 713    -- Entity Access Functions --
 714    -----------------------------
 715
 716    --  The following functions apply only to Entity_Id values, i.e.
 717    --  to extended nodes.
 718
 719    function Ekind (E : Entity_Id) return Entity_Kind;
 720    pragma Inline (Ekind);
 721
 722    function Convention (E : Entity_Id) return Convention_Id;
 723    pragma Inline (Convention);
 724
 725    ----------------------------
 726    -- Node Update Procedures --
 727    ----------------------------
 728
 729    --  The following functions set a specified field in the node whose Id is
 730    --  passed as the first argument. The second parameter is the new value
 731    --  to be set in the specified field. Note that Set_Nkind is in the next
 732    --  section, since its use is restricted.
 733
 734    procedure Set_Sloc         (N : Node_Id; Val : Source_Ptr);
 735    pragma Inline (Set_Sloc);
 736
 737    procedure Set_Paren_Count  (N : Node_Id; Val : Nat);
 738    pragma Inline (Set_Paren_Count);
 739
 740    procedure Set_Parent       (N : Node_Id; Val : Node_Id);
 741    pragma Inline (Set_Parent);
 742
 743    procedure Set_Analyzed     (N : Node_Id; Val : Boolean := True);
 744    pragma Inline (Set_Analyzed);
 745
 746    procedure Set_Error_Posted (N : Node_Id; Val : Boolean := True);
 747    pragma Inline (Set_Error_Posted);
 748
 749    procedure Set_Comes_From_Source (N : Node_Id; Val : Boolean);
 750    pragma Inline (Set_Comes_From_Source);
 751    --  Note that this routine is very rarely used, since usually the
 752    --  default mechanism provided sets the right value, but in some
 753    --  unusual cases, the value needs to be reset (e.g. when a source
 754    --  node is copied, and the copy must not have Comes_From_Source set.
 755
 756    ------------------------------
 757    -- Entity Update Procedures --
 758    ------------------------------
 759
 760    --  The following procedures apply only to Entity_Id values, i.e.
 761    --  to extended nodes.
 762
 763    procedure Basic_Set_Convention (E : Entity_Id; Val : Convention_Id);
 764    pragma Inline (Basic_Set_Convention);
 765    --  Clients should use Sem_Util.Set_Convention rather than calling this
 766    --  routine directly, as Set_Convention also deals with the special
 767    --  processing required for access types.
 768
 769    procedure Set_Ekind (E : Entity_Id; Val : Entity_Kind);
 770    pragma Inline (Set_Ekind);
 771
 772    ---------------------------
 773    -- Tree Rewrite Routines --
 774    ---------------------------
 775
 776    --  During the compilation process it is necessary in a number of situations
 777    --  to rewrite the tree. In some cases, such rewrites do not affect the
 778    --  structure of the tree, for example, when an indexed component node is
 779    --  replaced by the corresponding call node (the parser cannot distinguish
 780    --  between these two cases).
 781
 782    --  In other situations, the rewrite does affect the structure of the
 783    --  tree. Examples are the replacement of a generic instantiation by the
 784    --  instantiated spec and body, and the static evaluation of expressions.
 785
 786    --  If such structural modifications are done by the expander, there are
 787    --  no difficulties, since the form of the tree after the expander has no
 788    --  special significance, except as input to the backend of the compiler.
 789    --  However, if these modifications are done by the semantic phase, then
 790    --  it is important that they be done in a manner which allows the original
 791    --  tree to be preserved. This is because tools like pretty printers need
 792    --  to have this original tree structure available.
 793
 794    --  The subprograms in this section allow rewriting of the tree by either
 795    --  insertion of new nodes in an existing list, or complete replacement of
 796    --  a subtree. The resulting tree for most purposes looks as though it has
 797    --  been really changed, and there is no trace of the original. However,
 798    --  special subprograms, also defined in this section, allow the original
 799    --  tree to be reconstructed if necessary.
 800
 801    --  For tree modifications done in the expander, it is permissible to
 802    --  destroy the original tree, although it is also allowable to use the
 803    --  tree rewrite routines where it is convenient to do so.
 804
 805    procedure Mark_Rewrite_Insertion (New_Node : Node_Id);
 806    pragma Inline (Mark_Rewrite_Insertion);
 807    --  This procedure marks the given node as an insertion made during a tree
 808    --  rewriting operation. Only the root needs to be marked. The call does
 809    --  not do the actual insertion, which must be done using one of the normal
 810    --  list insertion routines. The node is treated normally in all respects
 811    --  except for its response to Is_Rewrite_Insertion. The function of these
 812    --  calls is to be able to get an accurate original tree. This helps the
 813    --  accuracy of Sprint.Sprint_Node, and in particular, when stubs are being
 814    --  generated, it is essential that the original tree be accurate.
 815
 816    function Is_Rewrite_Insertion (Node : Node_Id) return Boolean;
 817    pragma Inline (Is_Rewrite_Insertion);
 818    --  Tests whether the given node was marked using Set_Rewrite_Insert. This
 819    --  is used in reconstructing the original tree (where such nodes are to
 820    --  be eliminated from the reconstructed tree).
 821
 822    procedure Rewrite (Old_Node, New_Node : Node_Id);
 823    --  This is used when a complete subtree is to be replaced. Old_Node is the
 824    --  root of the old subtree to be replaced, and New_Node is the root of the
 825    --  newly constructed replacement subtree. The actual mechanism is to swap
 826    --  the contents of these two nodes fixing up the parent pointers of the
 827    --  replaced node (we do not attempt to preserve parent pointers for the
 828    --  original node). Neither Old_Node nor New_Node can be extended nodes.
 829    --
 830    --  Note: New_Node may not contain references to Old_Node, for example as
 831    --  descendents, since the rewrite would make such references invalid. If
 832    --  New_Node does need to reference Old_Node, then these references should
 833    --  be to a relocated copy of Old_Node (see Relocate_Node procedure).
 834    --
 835    --  Note: The Original_Node function applied to Old_Node (which has now
 836    --  been replaced by the contents of New_Node), can be used to obtain the
 837    --  original node, i.e. the old contents of Old_Node.
 838
 839    procedure Replace (Old_Node, New_Node : Node_Id);
 840    --  This is similar to Rewrite, except that the old value of Old_Node is
 841    --  not saved, and the New_Node is deleted after the replace, since it
 842    --  is assumed that it can no longer be legitimately needed. The flag
 843    --  Is_Rewrite_Susbtitute will be False for the resulting node, unless
 844    --  it was already true on entry, and Original_Node will not return the
 845    --  original contents of the Old_Node, but rather the New_Node value (unless
 846    --  Old_Node had already been rewritten using Rewrite). Replace also
 847    --  preserves the setting of Comes_From_Source.
 848    --
 849    --  Note, New_Node may not contain references to Old_Node, for example as
 850    --  descendents, since the rewrite would make such references invalid. If
 851    --  New_Node does need to reference Old_Node, then these references should
 852    --  be to a relocated copy of Old_Node (see Relocate_Node procedure).
 853    --
 854    --  Replace is used in certain circumstances where it is desirable to
 855    --  suppress any history of the rewriting operation. Notably, it is used
 856    --  when the parser has mis-classified a node (e.g. a task entry call
 857    --  that the parser has parsed as a procedure call).
 858
 859    function Is_Rewrite_Substitution (Node : Node_Id) return Boolean;
 860    pragma Inline (Is_Rewrite_Substitution);
 861    --  Return True iff Node has been rewritten (i.e. if Node is the root
 862    --  of a subtree which was installed using Rewrite).
 863
 864    function Original_Node (Node : Node_Id) return Node_Id;
 865    pragma Inline (Original_Node);
 866    --  If Node has not been rewritten, then returns its input argument
 867    --  unchanged, else returns the Node for the original subtree.
 868    --
 869    --  Note: Parents are not preserved in original tree nodes that are
 870    --  retrieved in this way (i.e. their children may have children whose
 871    --  pointers which reference some other node).
 872
 873    --  Note: there is no direct mechanism for deleting an original node (in
 874    --  a manner that can be reversed later). One possible approach is to use
 875    --  Rewrite to substitute a null statement for the node to be deleted.
 876
 877    -----------------------------------
 878    -- Generic Field Access Routines --
 879    -----------------------------------
 880
 881    --  This subpackage provides the functions for accessing and procedures for
 882    --  setting fields that are normally referenced by their logical synonyms
 883    --  defined in packages Sinfo and Einfo. The implementations of these
 884    --  packages use the package Atree.Unchecked_Access.
 885
 886    package Unchecked_Access is
 887
 888       --  Functions to allow interpretation of Union_Id values as Uint
 889       --  and Ureal values
 890
 891       function To_Union is new Unchecked_Conversion (Uint,  Union_Id);
 892       function To_Union is new Unchecked_Conversion (Ureal, Union_Id);
 893
 894       function From_Union is new Unchecked_Conversion (Union_Id, Uint);
 895       function From_Union is new Unchecked_Conversion (Union_Id, Ureal);
 896
 897       --  Functions to fetch contents of indicated field. It is an error
 898       --  to attempt to read the value of a field which is not present.
 899
 900       function Field1 (N : Node_Id) return Union_Id;
 901       pragma Inline (Field1);
 902
 903       function Field2 (N : Node_Id) return Union_Id;
 904       pragma Inline (Field2);
 905
 906       function Field3 (N : Node_Id) return Union_Id;
 907       pragma Inline (Field3);
 908
 909       function Field4 (N : Node_Id) return Union_Id;
 910       pragma Inline (Field4);
 911
 912       function Field5 (N : Node_Id) return Union_Id;
 913       pragma Inline (Field5);
 914
 915       function Field6 (N : Node_Id) return Union_Id;
 916       pragma Inline (Field6);
 917
 918       function Field7 (N : Node_Id) return Union_Id;
 919       pragma Inline (Field7);
 920
 921       function Field8 (N : Node_Id) return Union_Id;
 922       pragma Inline (Field8);
 923
 924       function Field9 (N : Node_Id) return Union_Id;
 925       pragma Inline (Field9);
 926
 927       function Field10 (N : Node_Id) return Union_Id;
 928       pragma Inline (Field10);
 929
 930       function Field11 (N : Node_Id) return Union_Id;
 931       pragma Inline (Field11);
 932
 933       function Field12 (N : Node_Id) return Union_Id;
 934       pragma Inline (Field12);
 935
 936       function Field13 (N : Node_Id) return Union_Id;
 937       pragma Inline (Field13);
 938
 939       function Field14 (N : Node_Id) return Union_Id;
 940       pragma Inline (Field14);
 941
 942       function Field15 (N : Node_Id) return Union_Id;
 943       pragma Inline (Field15);
 944
 945       function Field16 (N : Node_Id) return Union_Id;
 946       pragma Inline (Field16);
 947
 948       function Field17 (N : Node_Id) return Union_Id;
 949       pragma Inline (Field17);
 950
 951       function Field18 (N : Node_Id) return Union_Id;
 952       pragma Inline (Field18);
 953
 954       function Field19 (N : Node_Id) return Union_Id;
 955       pragma Inline (Field19);
 956
 957       function Field20 (N : Node_Id) return Union_Id;
 958       pragma Inline (Field20);
 959
 960       function Field21 (N : Node_Id) return Union_Id;
 961       pragma Inline (Field21);
 962
 963       function Field22 (N : Node_Id) return Union_Id;
 964       pragma Inline (Field22);
 965
 966       function Field23 (N : Node_Id) return Union_Id;
 967       pragma Inline (Field23);
 968
 969       function Field24 (N : Node_Id) return Union_Id;
 970       pragma Inline (Field24);
 971
 972       function Field25 (N : Node_Id) return Union_Id;
 973       pragma Inline (Field25);
 974
 975       function Field26 (N : Node_Id) return Union_Id;
 976       pragma Inline (Field26);
 977
 978       function Field27 (N : Node_Id) return Union_Id;
 979       pragma Inline (Field27);
 980
 981       function Field28 (N : Node_Id) return Union_Id;
 982       pragma Inline (Field28);
 983
 984       function Node1 (N : Node_Id) return Node_Id;
 985       pragma Inline (Node1);
 986
 987       function Node2 (N : Node_Id) return Node_Id;
 988       pragma Inline (Node2);
 989
 990       function Node3 (N : Node_Id) return Node_Id;
 991       pragma Inline (Node3);
 992
 993       function Node4 (N : Node_Id) return Node_Id;
 994       pragma Inline (Node4);
 995
 996       function Node5 (N : Node_Id) return Node_Id;
 997       pragma Inline (Node5);
 998
 999       function Node6 (N : Node_Id) return Node_Id;
1000       pragma Inline (Node6);
1001
1002       function Node7 (N : Node_Id) return Node_Id;
1003       pragma Inline (Node7);
1004
1005       function Node8 (N : Node_Id) return Node_Id;
1006       pragma Inline (Node8);
1007
1008       function Node9 (N : Node_Id) return Node_Id;
1009       pragma Inline (Node9);
1010
1011       function Node10 (N : Node_Id) return Node_Id;
1012       pragma Inline (Node10);
1013
1014       function Node11 (N : Node_Id) return Node_Id;
1015       pragma Inline (Node11);
1016
1017       function Node12 (N : Node_Id) return Node_Id;
1018       pragma Inline (Node12);
1019
1020       function Node13 (N : Node_Id) return Node_Id;
1021       pragma Inline (Node13);
1022
1023       function Node14 (N : Node_Id) return Node_Id;
1024       pragma Inline (Node14);
1025
1026       function Node15 (N : Node_Id) return Node_Id;
1027       pragma Inline (Node15);
1028
1029       function Node16 (N : Node_Id) return Node_Id;
1030       pragma Inline (Node16);
1031
1032       function Node17 (N : Node_Id) return Node_Id;
1033       pragma Inline (Node17);
1034
1035       function Node18 (N : Node_Id) return Node_Id;
1036       pragma Inline (Node18);
1037
1038       function Node19 (N : Node_Id) return Node_Id;
1039       pragma Inline (Node19);
1040
1041       function Node20 (N : Node_Id) return Node_Id;
1042       pragma Inline (Node20);
1043
1044       function Node21 (N : Node_Id) return Node_Id;
1045       pragma Inline (Node21);
1046
1047       function Node22 (N : Node_Id) return Node_Id;
1048       pragma Inline (Node22);
1049
1050       function Node23 (N : Node_Id) return Node_Id;
1051       pragma Inline (Node23);
1052
1053       function Node24 (N : Node_Id) return Node_Id;
1054       pragma Inline (Node24);
1055
1056       function Node25 (N : Node_Id) return Node_Id;
1057       pragma Inline (Node25);
1058
1059       function Node26 (N : Node_Id) return Node_Id;
1060       pragma Inline (Node26);
1061
1062       function Node27 (N : Node_Id) return Node_Id;
1063       pragma Inline (Node27);
1064
1065       function Node28 (N : Node_Id) return Node_Id;
1066       pragma Inline (Node28);
1067
1068       function List1 (N : Node_Id) return List_Id;
1069       pragma Inline (List1);
1070
1071       function List2 (N : Node_Id) return List_Id;
1072       pragma Inline (List2);
1073
1074       function List3 (N : Node_Id) return List_Id;
1075       pragma Inline (List3);
1076
1077       function List4 (N : Node_Id) return List_Id;
1078       pragma Inline (List4);
1079
1080       function List5 (N : Node_Id) return List_Id;
1081       pragma Inline (List5);
1082
1083       function List10 (N : Node_Id) return List_Id;
1084       pragma Inline (List10);
1085
1086       function List14 (N : Node_Id) return List_Id;
1087       pragma Inline (List14);
1088
1089       function Elist1 (N : Node_Id) return Elist_Id;
1090       pragma Inline (Elist1);
1091
1092       function Elist2 (N : Node_Id) return Elist_Id;
1093       pragma Inline (Elist2);
1094
1095       function Elist3 (N : Node_Id) return Elist_Id;
1096       pragma Inline (Elist3);
1097
1098       function Elist4 (N : Node_Id) return Elist_Id;
1099       pragma Inline (Elist4);
1100
1101       function Elist8 (N : Node_Id) return Elist_Id;
1102       pragma Inline (Elist8);
1103
1104       function Elist13 (N : Node_Id) return Elist_Id;
1105       pragma Inline (Elist13);
1106
1107       function Elist15 (N : Node_Id) return Elist_Id;
1108       pragma Inline (Elist15);
1109
1110       function Elist16 (N : Node_Id) return Elist_Id;
1111       pragma Inline (Elist16);
1112
1113       function Elist18 (N : Node_Id) return Elist_Id;
1114       pragma Inline (Elist18);
1115
1116       function Elist21 (N : Node_Id) return Elist_Id;
1117       pragma Inline (Elist21);
1118
1119       function Elist23 (N : Node_Id) return Elist_Id;
1120       pragma Inline (Elist23);
1121
1122       function Elist25 (N : Node_Id) return Elist_Id;
1123       pragma Inline (Elist25);
1124
1125       function Elist26 (N : Node_Id) return Elist_Id;
1126       pragma Inline (Elist26);
1127
1128       function Name1 (N : Node_Id) return Name_Id;
1129       pragma Inline (Name1);
1130
1131       function Name2 (N : Node_Id) return Name_Id;
1132       pragma Inline (Name2);
1133
1134       function Str3 (N : Node_Id) return String_Id;
1135       pragma Inline (Str3);
1136
1137       --  Note: the following Uintnn functions have a special test for
1138       --  the Field value being Empty. If an Empty value is found then
1139       --  Uint_0 is returned. This avoids the rather tricky requirement
1140       --  of initializing all Uint fields in nodes and entities.
1141
1142       function Uint2 (N : Node_Id) return Uint;
1143       pragma Inline (Uint2);
1144
1145       function Uint3 (N : Node_Id) return Uint;
1146       pragma Inline (Uint3);
1147
1148       function Uint4 (N : Node_Id) return Uint;
1149       pragma Inline (Uint4);
1150
1151       function Uint5 (N : Node_Id) return Uint;
1152       pragma Inline (Uint5);
1153
1154       function Uint8 (N : Node_Id) return Uint;
1155       pragma Inline (Uint8);
1156
1157       function Uint9 (N : Node_Id) return Uint;
1158       pragma Inline (Uint9);
1159
1160       function Uint10 (N : Node_Id) return Uint;
1161       pragma Inline (Uint10);
1162
1163       function Uint11 (N : Node_Id) return Uint;
1164       pragma Inline (Uint11);
1165
1166       function Uint12 (N : Node_Id) return Uint;
1167       pragma Inline (Uint12);
1168
1169       function Uint13 (N : Node_Id) return Uint;
1170       pragma Inline (Uint13);
1171
1172       function Uint14 (N : Node_Id) return Uint;
1173       pragma Inline (Uint14);
1174
1175       function Uint15 (N : Node_Id) return Uint;
1176       pragma Inline (Uint15);
1177
1178       function Uint16 (N : Node_Id) return Uint;
1179       pragma Inline (Uint16);
1180
1181       function Uint17 (N : Node_Id) return Uint;
1182       pragma Inline (Uint17);
1183
1184       function Uint22 (N : Node_Id) return Uint;
1185       pragma Inline (Uint22);
1186
1187       function Ureal3 (N : Node_Id) return Ureal;
1188       pragma Inline (Ureal3);
1189
1190       function Ureal18 (N : Node_Id) return Ureal;
1191       pragma Inline (Ureal18);
1192
1193       function Ureal21 (N : Node_Id) return Ureal;
1194       pragma Inline (Ureal21);
1195
1196       function Flag4 (N : Node_Id) return Boolean;
1197       pragma Inline (Flag4);
1198
1199       function Flag5 (N : Node_Id) return Boolean;
1200       pragma Inline (Flag5);
1201
1202       function Flag6 (N : Node_Id) return Boolean;
1203       pragma Inline (Flag6);
1204
1205       function Flag7 (N : Node_Id) return Boolean;
1206       pragma Inline (Flag7);
1207
1208       function Flag8 (N : Node_Id) return Boolean;
1209       pragma Inline (Flag8);
1210
1211       function Flag9 (N : Node_Id) return Boolean;
1212       pragma Inline (Flag9);
1213
1214       function Flag10 (N : Node_Id) return Boolean;
1215       pragma Inline (Flag10);
1216
1217       function Flag11 (N : Node_Id) return Boolean;
1218       pragma Inline (Flag11);
1219
1220       function Flag12 (N : Node_Id) return Boolean;
1221       pragma Inline (Flag12);
1222
1223       function Flag13 (N : Node_Id) return Boolean;
1224       pragma Inline (Flag13);
1225
1226       function Flag14 (N : Node_Id) return Boolean;
1227       pragma Inline (Flag14);
1228
1229       function Flag15 (N : Node_Id) return Boolean;
1230       pragma Inline (Flag15);
1231
1232       function Flag16 (N : Node_Id) return Boolean;
1233       pragma Inline (Flag16);
1234
1235       function Flag17 (N : Node_Id) return Boolean;
1236       pragma Inline (Flag17);
1237
1238       function Flag18 (N : Node_Id) return Boolean;
1239       pragma Inline (Flag18);
1240
1241       function Flag19 (N : Node_Id) return Boolean;
1242       pragma Inline (Flag19);
1243
1244       function Flag20 (N : Node_Id) return Boolean;
1245       pragma Inline (Flag20);
1246
1247       function Flag21 (N : Node_Id) return Boolean;
1248       pragma Inline (Flag21);
1249
1250       function Flag22 (N : Node_Id) return Boolean;
1251       pragma Inline (Flag22);
1252
1253       function Flag23 (N : Node_Id) return Boolean;
1254       pragma Inline (Flag23);
1255
1256       function Flag24 (N : Node_Id) return Boolean;
1257       pragma Inline (Flag24);
1258
1259       function Flag25 (N : Node_Id) return Boolean;
1260       pragma Inline (Flag25);
1261
1262       function Flag26 (N : Node_Id) return Boolean;
1263       pragma Inline (Flag26);
1264
1265       function Flag27 (N : Node_Id) return Boolean;
1266       pragma Inline (Flag27);
1267
1268       function Flag28 (N : Node_Id) return Boolean;
1269       pragma Inline (Flag28);
1270
1271       function Flag29 (N : Node_Id) return Boolean;
1272       pragma Inline (Flag29);
1273
1274       function Flag30 (N : Node_Id) return Boolean;
1275       pragma Inline (Flag30);
1276
1277       function Flag31 (N : Node_Id) return Boolean;
1278       pragma Inline (Flag31);
1279
1280       function Flag32 (N : Node_Id) return Boolean;
1281       pragma Inline (Flag32);
1282
1283       function Flag33 (N : Node_Id) return Boolean;
1284       pragma Inline (Flag33);
1285
1286       function Flag34 (N : Node_Id) return Boolean;
1287       pragma Inline (Flag34);
1288
1289       function Flag35 (N : Node_Id) return Boolean;
1290       pragma Inline (Flag35);
1291
1292       function Flag36 (N : Node_Id) return Boolean;
1293       pragma Inline (Flag36);
1294
1295       function Flag37 (N : Node_Id) return Boolean;
1296       pragma Inline (Flag37);
1297
1298       function Flag38 (N : Node_Id) return Boolean;
1299       pragma Inline (Flag38);
1300
1301       function Flag39 (N : Node_Id) return Boolean;
1302       pragma Inline (Flag39);
1303
1304       function Flag40 (N : Node_Id) return Boolean;
1305       pragma Inline (Flag40);
1306
1307       function Flag41 (N : Node_Id) return Boolean;
1308       pragma Inline (Flag41);
1309
1310       function Flag42 (N : Node_Id) return Boolean;
1311       pragma Inline (Flag42);
1312
1313       function Flag43 (N : Node_Id) return Boolean;
1314       pragma Inline (Flag43);
1315
1316       function Flag44 (N : Node_Id) return Boolean;
1317       pragma Inline (Flag44);
1318
1319       function Flag45 (N : Node_Id) return Boolean;
1320       pragma Inline (Flag45);
1321
1322       function Flag46 (N : Node_Id) return Boolean;
1323       pragma Inline (Flag46);
1324
1325       function Flag47 (N : Node_Id) return Boolean;
1326       pragma Inline (Flag47);
1327
1328       function Flag48 (N : Node_Id) return Boolean;
1329       pragma Inline (Flag48);
1330
1331       function Flag49 (N : Node_Id) return Boolean;
1332       pragma Inline (Flag49);
1333
1334       function Flag50 (N : Node_Id) return Boolean;
1335       pragma Inline (Flag50);
1336
1337       function Flag51 (N : Node_Id) return Boolean;
1338       pragma Inline (Flag51);
1339
1340       function Flag52 (N : Node_Id) return Boolean;
1341       pragma Inline (Flag52);
1342
1343       function Flag53 (N : Node_Id) return Boolean;
1344       pragma Inline (Flag53);
1345
1346       function Flag54 (N : Node_Id) return Boolean;
1347       pragma Inline (Flag54);
1348
1349       function Flag55 (N : Node_Id) return Boolean;
1350       pragma Inline (Flag55);
1351
1352       function Flag56 (N : Node_Id) return Boolean;
1353       pragma Inline (Flag56);
1354
1355       function Flag57 (N : Node_Id) return Boolean;
1356       pragma Inline (Flag57);
1357
1358       function Flag58 (N : Node_Id) return Boolean;
1359       pragma Inline (Flag58);
1360
1361       function Flag59 (N : Node_Id) return Boolean;
1362       pragma Inline (Flag59);
1363
1364       function Flag60 (N : Node_Id) return Boolean;
1365       pragma Inline (Flag60);
1366
1367       function Flag61 (N : Node_Id) return Boolean;
1368       pragma Inline (Flag61);
1369
1370       function Flag62 (N : Node_Id) return Boolean;
1371       pragma Inline (Flag62);
1372
1373       function Flag63 (N : Node_Id) return Boolean;
1374       pragma Inline (Flag63);
1375
1376       function Flag64 (N : Node_Id) return Boolean;
1377       pragma Inline (Flag64);
1378
1379       function Flag65 (N : Node_Id) return Boolean;
1380       pragma Inline (Flag65);
1381
1382       function Flag66 (N : Node_Id) return Boolean;
1383       pragma Inline (Flag66);
1384
1385       function Flag67 (N : Node_Id) return Boolean;
1386       pragma Inline (Flag67);
1387
1388       function Flag68 (N : Node_Id) return Boolean;
1389       pragma Inline (Flag68);
1390
1391       function Flag69 (N : Node_Id) return Boolean;
1392       pragma Inline (Flag69);
1393
1394       function Flag70 (N : Node_Id) return Boolean;
1395       pragma Inline (Flag70);
1396
1397       function Flag71 (N : Node_Id) return Boolean;
1398       pragma Inline (Flag71);
1399
1400       function Flag72 (N : Node_Id) return Boolean;
1401       pragma Inline (Flag72);
1402
1403       function Flag73 (N : Node_Id) return Boolean;
1404       pragma Inline (Flag73);
1405
1406       function Flag74 (N : Node_Id) return Boolean;
1407       pragma Inline (Flag74);
1408
1409       function Flag75 (N : Node_Id) return Boolean;
1410       pragma Inline (Flag75);
1411
1412       function Flag76 (N : Node_Id) return Boolean;
1413       pragma Inline (Flag76);
1414
1415       function Flag77 (N : Node_Id) return Boolean;
1416       pragma Inline (Flag77);
1417
1418       function Flag78 (N : Node_Id) return Boolean;
1419       pragma Inline (Flag78);
1420
1421       function Flag79 (N : Node_Id) return Boolean;
1422       pragma Inline (Flag79);
1423
1424       function Flag80 (N : Node_Id) return Boolean;
1425       pragma Inline (Flag80);
1426
1427       function Flag81 (N : Node_Id) return Boolean;
1428       pragma Inline (Flag81);
1429
1430       function Flag82 (N : Node_Id) return Boolean;
1431       pragma Inline (Flag82);
1432
1433       function Flag83 (N : Node_Id) return Boolean;
1434       pragma Inline (Flag83);
1435
1436       function Flag84 (N : Node_Id) return Boolean;
1437       pragma Inline (Flag84);
1438
1439       function Flag85 (N : Node_Id) return Boolean;
1440       pragma Inline (Flag85);
1441
1442       function Flag86 (N : Node_Id) return Boolean;
1443       pragma Inline (Flag86);
1444
1445       function Flag87 (N : Node_Id) return Boolean;
1446       pragma Inline (Flag87);
1447
1448       function Flag88 (N : Node_Id) return Boolean;
1449       pragma Inline (Flag88);
1450
1451       function Flag89 (N : Node_Id) return Boolean;
1452       pragma Inline (Flag89);
1453
1454       function Flag90 (N : Node_Id) return Boolean;
1455       pragma Inline (Flag90);
1456
1457       function Flag91 (N : Node_Id) return Boolean;
1458       pragma Inline (Flag91);
1459
1460       function Flag92 (N : Node_Id) return Boolean;
1461       pragma Inline (Flag92);
1462
1463       function Flag93 (N : Node_Id) return Boolean;
1464       pragma Inline (Flag93);
1465
1466       function Flag94 (N : Node_Id) return Boolean;
1467       pragma Inline (Flag94);
1468
1469       function Flag95 (N : Node_Id) return Boolean;
1470       pragma Inline (Flag95);
1471
1472       function Flag96 (N : Node_Id) return Boolean;
1473       pragma Inline (Flag96);
1474
1475       function Flag97 (N : Node_Id) return Boolean;
1476       pragma Inline (Flag97);
1477
1478       function Flag98 (N : Node_Id) return Boolean;
1479       pragma Inline (Flag98);
1480
1481       function Flag99 (N : Node_Id) return Boolean;
1482       pragma Inline (Flag99);
1483
1484       function Flag100 (N : Node_Id) return Boolean;
1485       pragma Inline (Flag100);
1486
1487       function Flag101 (N : Node_Id) return Boolean;
1488       pragma Inline (Flag101);
1489
1490       function Flag102 (N : Node_Id) return Boolean;
1491       pragma Inline (Flag102);
1492
1493       function Flag103 (N : Node_Id) return Boolean;
1494       pragma Inline (Flag103);
1495
1496       function Flag104 (N : Node_Id) return Boolean;
1497       pragma Inline (Flag104);
1498
1499       function Flag105 (N : Node_Id) return Boolean;
1500       pragma Inline (Flag105);
1501
1502       function Flag106 (N : Node_Id) return Boolean;
1503       pragma Inline (Flag106);
1504
1505       function Flag107 (N : Node_Id) return Boolean;
1506       pragma Inline (Flag107);
1507
1508       function Flag108 (N : Node_Id) return Boolean;
1509       pragma Inline (Flag108);
1510
1511       function Flag109 (N : Node_Id) return Boolean;
1512       pragma Inline (Flag109);
1513
1514       function Flag110 (N : Node_Id) return Boolean;
1515       pragma Inline (Flag110);
1516
1517       function Flag111 (N : Node_Id) return Boolean;
1518       pragma Inline (Flag111);
1519
1520       function Flag112 (N : Node_Id) return Boolean;
1521       pragma Inline (Flag112);
1522
1523       function Flag113 (N : Node_Id) return Boolean;
1524       pragma Inline (Flag113);
1525
1526       function Flag114 (N : Node_Id) return Boolean;
1527       pragma Inline (Flag114);
1528
1529       function Flag115 (N : Node_Id) return Boolean;
1530       pragma Inline (Flag115);
1531
1532       function Flag116 (N : Node_Id) return Boolean;
1533       pragma Inline (Flag116);
1534
1535       function Flag117 (N : Node_Id) return Boolean;
1536       pragma Inline (Flag117);
1537
1538       function Flag118 (N : Node_Id) return Boolean;
1539       pragma Inline (Flag118);
1540
1541       function Flag119 (N : Node_Id) return Boolean;
1542       pragma Inline (Flag119);
1543
1544       function Flag120 (N : Node_Id) return Boolean;
1545       pragma Inline (Flag120);
1546
1547       function Flag121 (N : Node_Id) return Boolean;
1548       pragma Inline (Flag121);
1549
1550       function Flag122 (N : Node_Id) return Boolean;
1551       pragma Inline (Flag122);
1552
1553       function Flag123 (N : Node_Id) return Boolean;
1554       pragma Inline (Flag123);
1555
1556       function Flag124 (N : Node_Id) return Boolean;
1557       pragma Inline (Flag124);
1558
1559       function Flag125 (N : Node_Id) return Boolean;
1560       pragma Inline (Flag125);
1561
1562       function Flag126 (N : Node_Id) return Boolean;
1563       pragma Inline (Flag126);
1564
1565       function Flag127 (N : Node_Id) return Boolean;
1566       pragma Inline (Flag127);
1567
1568       function Flag128 (N : Node_Id) return Boolean;
1569       pragma Inline (Flag128);
1570
1571       function Flag129 (N : Node_Id) return Boolean;
1572       pragma Inline (Flag129);
1573
1574       function Flag130 (N : Node_Id) return Boolean;
1575       pragma Inline (Flag130);
1576
1577       function Flag131 (N : Node_Id) return Boolean;
1578       pragma Inline (Flag131);
1579
1580       function Flag132 (N : Node_Id) return Boolean;
1581       pragma Inline (Flag132);
1582
1583       function Flag133 (N : Node_Id) return Boolean;
1584       pragma Inline (Flag133);
1585
1586       function Flag134 (N : Node_Id) return Boolean;
1587       pragma Inline (Flag134);
1588
1589       function Flag135 (N : Node_Id) return Boolean;
1590       pragma Inline (Flag135);
1591
1592       function Flag136 (N : Node_Id) return Boolean;
1593       pragma Inline (Flag136);
1594
1595       function Flag137 (N : Node_Id) return Boolean;
1596       pragma Inline (Flag137);
1597
1598       function Flag138 (N : Node_Id) return Boolean;
1599       pragma Inline (Flag138);
1600
1601       function Flag139 (N : Node_Id) return Boolean;
1602       pragma Inline (Flag139);
1603
1604       function Flag140 (N : Node_Id) return Boolean;
1605       pragma Inline (Flag140);
1606
1607       function Flag141 (N : Node_Id) return Boolean;
1608       pragma Inline (Flag141);
1609
1610       function Flag142 (N : Node_Id) return Boolean;
1611       pragma Inline (Flag142);
1612
1613       function Flag143 (N : Node_Id) return Boolean;
1614       pragma Inline (Flag143);
1615
1616       function Flag144 (N : Node_Id) return Boolean;
1617       pragma Inline (Flag144);
1618
1619       function Flag145 (N : Node_Id) return Boolean;
1620       pragma Inline (Flag145);
1621
1622       function Flag146 (N : Node_Id) return Boolean;
1623       pragma Inline (Flag146);
1624
1625       function Flag147 (N : Node_Id) return Boolean;
1626       pragma Inline (Flag147);
1627
1628       function Flag148 (N : Node_Id) return Boolean;
1629       pragma Inline (Flag148);
1630
1631       function Flag149 (N : Node_Id) return Boolean;
1632       pragma Inline (Flag149);
1633
1634       function Flag150 (N : Node_Id) return Boolean;
1635       pragma Inline (Flag150);
1636
1637       function Flag151 (N : Node_Id) return Boolean;
1638       pragma Inline (Flag151);
1639
1640       function Flag152 (N : Node_Id) return Boolean;
1641       pragma Inline (Flag152);
1642
1643       function Flag153 (N : Node_Id) return Boolean;
1644       pragma Inline (Flag153);
1645
1646       function Flag154 (N : Node_Id) return Boolean;
1647       pragma Inline (Flag154);
1648
1649       function Flag155 (N : Node_Id) return Boolean;
1650       pragma Inline (Flag155);
1651
1652       function Flag156 (N : Node_Id) return Boolean;
1653       pragma Inline (Flag156);
1654
1655       function Flag157 (N : Node_Id) return Boolean;
1656       pragma Inline (Flag157);
1657
1658       function Flag158 (N : Node_Id) return Boolean;
1659       pragma Inline (Flag158);
1660
1661       function Flag159 (N : Node_Id) return Boolean;
1662       pragma Inline (Flag159);
1663
1664       function Flag160 (N : Node_Id) return Boolean;
1665       pragma Inline (Flag160);
1666
1667       function Flag161 (N : Node_Id) return Boolean;
1668       pragma Inline (Flag161);
1669
1670       function Flag162 (N : Node_Id) return Boolean;
1671       pragma Inline (Flag162);
1672
1673       function Flag163 (N : Node_Id) return Boolean;
1674       pragma Inline (Flag163);
1675
1676       function Flag164 (N : Node_Id) return Boolean;
1677       pragma Inline (Flag164);
1678
1679       function Flag165 (N : Node_Id) return Boolean;
1680       pragma Inline (Flag165);
1681
1682       function Flag166 (N : Node_Id) return Boolean;
1683       pragma Inline (Flag166);
1684
1685       function Flag167 (N : Node_Id) return Boolean;
1686       pragma Inline (Flag167);
1687
1688       function Flag168 (N : Node_Id) return Boolean;
1689       pragma Inline (Flag168);
1690
1691       function Flag169 (N : Node_Id) return Boolean;
1692       pragma Inline (Flag169);
1693
1694       function Flag170 (N : Node_Id) return Boolean;
1695       pragma Inline (Flag170);
1696
1697       function Flag171 (N : Node_Id) return Boolean;
1698       pragma Inline (Flag171);
1699
1700       function Flag172 (N : Node_Id) return Boolean;
1701       pragma Inline (Flag172);
1702
1703       function Flag173 (N : Node_Id) return Boolean;
1704       pragma Inline (Flag173);
1705
1706       function Flag174 (N : Node_Id) return Boolean;
1707       pragma Inline (Flag174);
1708
1709       function Flag175 (N : Node_Id) return Boolean;
1710       pragma Inline (Flag175);
1711
1712       function Flag176 (N : Node_Id) return Boolean;
1713       pragma Inline (Flag176);
1714
1715       function Flag177 (N : Node_Id) return Boolean;
1716       pragma Inline (Flag177);
1717
1718       function Flag178 (N : Node_Id) return Boolean;
1719       pragma Inline (Flag178);
1720
1721       function Flag179 (N : Node_Id) return Boolean;
1722       pragma Inline (Flag179);
1723
1724       function Flag180 (N : Node_Id) return Boolean;
1725       pragma Inline (Flag180);
1726
1727       function Flag181 (N : Node_Id) return Boolean;
1728       pragma Inline (Flag181);
1729
1730       function Flag182 (N : Node_Id) return Boolean;
1731       pragma Inline (Flag182);
1732
1733       function Flag183 (N : Node_Id) return Boolean;
1734       pragma Inline (Flag183);
1735
1736       function Flag184 (N : Node_Id) return Boolean;
1737       pragma Inline (Flag184);
1738
1739       function Flag185 (N : Node_Id) return Boolean;
1740       pragma Inline (Flag185);
1741
1742       function Flag186 (N : Node_Id) return Boolean;
1743       pragma Inline (Flag186);
1744
1745       function Flag187 (N : Node_Id) return Boolean;
1746       pragma Inline (Flag187);
1747
1748       function Flag188 (N : Node_Id) return Boolean;
1749       pragma Inline (Flag188);
1750
1751       function Flag189 (N : Node_Id) return Boolean;
1752       pragma Inline (Flag189);
1753
1754       function Flag190 (N : Node_Id) return Boolean;
1755       pragma Inline (Flag190);
1756
1757       function Flag191 (N : Node_Id) return Boolean;
1758       pragma Inline (Flag191);
1759
1760       function Flag192 (N : Node_Id) return Boolean;
1761       pragma Inline (Flag192);
1762
1763       function Flag193 (N : Node_Id) return Boolean;
1764       pragma Inline (Flag193);
1765
1766       function Flag194 (N : Node_Id) return Boolean;
1767       pragma Inline (Flag194);
1768
1769       function Flag195 (N : Node_Id) return Boolean;
1770       pragma Inline (Flag195);
1771
1772       function Flag196 (N : Node_Id) return Boolean;
1773       pragma Inline (Flag196);
1774
1775       function Flag197 (N : Node_Id) return Boolean;
1776       pragma Inline (Flag197);
1777
1778       function Flag198 (N : Node_Id) return Boolean;
1779       pragma Inline (Flag198);
1780
1781       function Flag199 (N : Node_Id) return Boolean;
1782       pragma Inline (Flag199);
1783
1784       function Flag200 (N : Node_Id) return Boolean;
1785       pragma Inline (Flag200);
1786
1787       function Flag201 (N : Node_Id) return Boolean;
1788       pragma Inline (Flag201);
1789
1790       function Flag202 (N : Node_Id) return Boolean;
1791       pragma Inline (Flag202);
1792
1793       function Flag203 (N : Node_Id) return Boolean;
1794       pragma Inline (Flag203);
1795
1796       function Flag204 (N : Node_Id) return Boolean;
1797       pragma Inline (Flag204);
1798
1799       function Flag205 (N : Node_Id) return Boolean;
1800       pragma Inline (Flag205);
1801
1802       function Flag206 (N : Node_Id) return Boolean;
1803       pragma Inline (Flag206);
1804
1805       function Flag207 (N : Node_Id) return Boolean;
1806       pragma Inline (Flag207);
1807
1808       function Flag208 (N : Node_Id) return Boolean;
1809       pragma Inline (Flag208);
1810
1811       function Flag209 (N : Node_Id) return Boolean;
1812       pragma Inline (Flag209);
1813
1814       function Flag210 (N : Node_Id) return Boolean;
1815       pragma Inline (Flag210);
1816
1817       function Flag211 (N : Node_Id) return Boolean;
1818       pragma Inline (Flag211);
1819
1820       function Flag212 (N : Node_Id) return Boolean;
1821       pragma Inline (Flag212);
1822
1823       function Flag213 (N : Node_Id) return Boolean;
1824       pragma Inline (Flag213);
1825
1826       function Flag214 (N : Node_Id) return Boolean;
1827       pragma Inline (Flag214);
1828
1829       function Flag215 (N : Node_Id) return Boolean;
1830       pragma Inline (Flag215);
1831
1832       function Flag216 (N : Node_Id) return Boolean;
1833       pragma Inline (Flag216);
1834
1835       function Flag217 (N : Node_Id) return Boolean;
1836       pragma Inline (Flag217);
1837
1838       function Flag218 (N : Node_Id) return Boolean;
1839       pragma Inline (Flag218);
1840
1841       function Flag219 (N : Node_Id) return Boolean;
1842       pragma Inline (Flag219);
1843
1844       function Flag220 (N : Node_Id) return Boolean;
1845       pragma Inline (Flag220);
1846
1847       function Flag221 (N : Node_Id) return Boolean;
1848       pragma Inline (Flag221);
1849
1850       function Flag222 (N : Node_Id) return Boolean;
1851       pragma Inline (Flag222);
1852
1853       function Flag223 (N : Node_Id) return Boolean;
1854       pragma Inline (Flag223);
1855
1856       function Flag224 (N : Node_Id) return Boolean;
1857       pragma Inline (Flag224);
1858
1859       function Flag225 (N : Node_Id) return Boolean;
1860       pragma Inline (Flag225);
1861
1862       function Flag226 (N : Node_Id) return Boolean;
1863       pragma Inline (Flag226);
1864
1865       function Flag227 (N : Node_Id) return Boolean;
1866       pragma Inline (Flag227);
1867
1868       function Flag228 (N : Node_Id) return Boolean;
1869       pragma Inline (Flag228);
1870
1871       function Flag229 (N : Node_Id) return Boolean;
1872       pragma Inline (Flag229);
1873
1874       function Flag230 (N : Node_Id) return Boolean;
1875       pragma Inline (Flag230);
1876
1877       function Flag231 (N : Node_Id) return Boolean;
1878       pragma Inline (Flag231);
1879
1880       function Flag232 (N : Node_Id) return Boolean;
1881       pragma Inline (Flag232);
1882
1883       function Flag233 (N : Node_Id) return Boolean;
1884       pragma Inline (Flag233);
1885
1886       function Flag234 (N : Node_Id) return Boolean;
1887       pragma Inline (Flag234);
1888
1889       function Flag235 (N : Node_Id) return Boolean;
1890       pragma Inline (Flag235);
1891
1892       function Flag236 (N : Node_Id) return Boolean;
1893       pragma Inline (Flag236);
1894
1895       function Flag237 (N : Node_Id) return Boolean;
1896       pragma Inline (Flag237);
1897
1898       function Flag238 (N : Node_Id) return Boolean;
1899       pragma Inline (Flag238);
1900
1901       function Flag239 (N : Node_Id) return Boolean;
1902       pragma Inline (Flag239);
1903
1904       function Flag240 (N : Node_Id) return Boolean;
1905       pragma Inline (Flag240);
1906
1907       function Flag241 (N : Node_Id) return Boolean;
1908       pragma Inline (Flag241);
1909
1910       function Flag242 (N : Node_Id) return Boolean;
1911       pragma Inline (Flag242);
1912
1913       function Flag243 (N : Node_Id) return Boolean;
1914       pragma Inline (Flag243);
1915
1916       function Flag244 (N : Node_Id) return Boolean;
1917       pragma Inline (Flag244);
1918
1919       function Flag245 (N : Node_Id) return Boolean;
1920       pragma Inline (Flag245);
1921
1922       function Flag246 (N : Node_Id) return Boolean;
1923       pragma Inline (Flag246);
1924
1925       function Flag247 (N : Node_Id) return Boolean;
1926       pragma Inline (Flag247);
1927
1928       --  Procedures to set value of indicated field
1929
1930       procedure Set_Nkind (N : Node_Id; Val : Node_Kind);
1931       pragma Inline (Set_Nkind);
1932
1933       procedure Set_Field1 (N : Node_Id; Val : Union_Id);
1934       pragma Inline (Set_Field1);
1935
1936       procedure Set_Field2 (N : Node_Id; Val : Union_Id);
1937       pragma Inline (Set_Field2);
1938
1939       procedure Set_Field3 (N : Node_Id; Val : Union_Id);
1940       pragma Inline (Set_Field3);
1941
1942       procedure Set_Field4 (N : Node_Id; Val : Union_Id);
1943       pragma Inline (Set_Field4);
1944
1945       procedure Set_Field5 (N : Node_Id; Val : Union_Id);
1946       pragma Inline (Set_Field5);
1947
1948       procedure Set_Field6 (N : Node_Id; Val : Union_Id);
1949       pragma Inline (Set_Field6);
1950
1951       procedure Set_Field7 (N : Node_Id; Val : Union_Id);
1952       pragma Inline (Set_Field7);
1953
1954       procedure Set_Field8 (N : Node_Id; Val : Union_Id);
1955       pragma Inline (Set_Field8);
1956
1957       procedure Set_Field9 (N : Node_Id; Val : Union_Id);
1958       pragma Inline (Set_Field9);
1959
1960       procedure Set_Field10 (N : Node_Id; Val : Union_Id);
1961       pragma Inline (Set_Field10);
1962
1963       procedure Set_Field11 (N : Node_Id; Val : Union_Id);
1964       pragma Inline (Set_Field11);
1965
1966       procedure Set_Field12 (N : Node_Id; Val : Union_Id);
1967       pragma Inline (Set_Field12);
1968
1969       procedure Set_Field13 (N : Node_Id; Val : Union_Id);
1970       pragma Inline (Set_Field13);
1971
1972       procedure Set_Field14 (N : Node_Id; Val : Union_Id);
1973       pragma Inline (Set_Field14);
1974
1975       procedure Set_Field15 (N : Node_Id; Val : Union_Id);
1976       pragma Inline (Set_Field15);
1977
1978       procedure Set_Field16 (N : Node_Id; Val : Union_Id);
1979       pragma Inline (Set_Field16);
1980
1981       procedure Set_Field17 (N : Node_Id; Val : Union_Id);
1982       pragma Inline (Set_Field17);
1983
1984       procedure Set_Field18 (N : Node_Id; Val : Union_Id);
1985       pragma Inline (Set_Field18);
1986
1987       procedure Set_Field19 (N : Node_Id; Val : Union_Id);
1988       pragma Inline (Set_Field19);
1989
1990       procedure Set_Field20 (N : Node_Id; Val : Union_Id);
1991       pragma Inline (Set_Field20);
1992
1993       procedure Set_Field21 (N : Node_Id; Val : Union_Id);
1994       pragma Inline (Set_Field21);
1995
1996       procedure Set_Field22 (N : Node_Id; Val : Union_Id);
1997       pragma Inline (Set_Field22);
1998
1999       procedure Set_Field23 (N : Node_Id; Val : Union_Id);
2000       pragma Inline (Set_Field23);
2001
2002       procedure Set_Field24 (N : Node_Id; Val : Union_Id);
2003       pragma Inline (Set_Field24);
2004
2005       procedure Set_Field25 (N : Node_Id; Val : Union_Id);
2006       pragma Inline (Set_Field25);
2007
2008       procedure Set_Field26 (N : Node_Id; Val : Union_Id);
2009       pragma Inline (Set_Field26);
2010
2011       procedure Set_Field27 (N : Node_Id; Val : Union_Id);
2012       pragma Inline (Set_Field27);
2013
2014       procedure Set_Field28 (N : Node_Id; Val : Union_Id);
2015       pragma Inline (Set_Field28);
2016
2017       procedure Set_Node1 (N : Node_Id; Val : Node_Id);
2018       pragma Inline (Set_Node1);
2019
2020       procedure Set_Node2 (N : Node_Id; Val : Node_Id);
2021       pragma Inline (Set_Node2);
2022
2023       procedure Set_Node3 (N : Node_Id; Val : Node_Id);
2024       pragma Inline (Set_Node3);
2025
2026       procedure Set_Node4 (N : Node_Id; Val : Node_Id);
2027       pragma Inline (Set_Node4);
2028
2029       procedure Set_Node5 (N : Node_Id; Val : Node_Id);
2030       pragma Inline (Set_Node5);
2031
2032       procedure Set_Node6 (N : Node_Id; Val : Node_Id);
2033       pragma Inline (Set_Node6);
2034
2035       procedure Set_Node7 (N : Node_Id; Val : Node_Id);
2036       pragma Inline (Set_Node7);
2037
2038       procedure Set_Node8 (N : Node_Id; Val : Node_Id);
2039       pragma Inline (Set_Node8);
2040
2041       procedure Set_Node9 (N : Node_Id; Val : Node_Id);
2042       pragma Inline (Set_Node9);
2043
2044       procedure Set_Node10 (N : Node_Id; Val : Node_Id);
2045       pragma Inline (Set_Node10);
2046
2047       procedure Set_Node11 (N : Node_Id; Val : Node_Id);
2048       pragma Inline (Set_Node11);
2049
2050       procedure Set_Node12 (N : Node_Id; Val : Node_Id);
2051       pragma Inline (Set_Node12);
2052
2053       procedure Set_Node13 (N : Node_Id; Val : Node_Id);
2054       pragma Inline (Set_Node13);
2055
2056       procedure Set_Node14 (N : Node_Id; Val : Node_Id);
2057       pragma Inline (Set_Node14);
2058
2059       procedure Set_Node15 (N : Node_Id; Val : Node_Id);
2060       pragma Inline (Set_Node15);
2061
2062       procedure Set_Node16 (N : Node_Id; Val : Node_Id);
2063       pragma Inline (Set_Node16);
2064
2065       procedure Set_Node17 (N : Node_Id; Val : Node_Id);
2066       pragma Inline (Set_Node17);
2067
2068       procedure Set_Node18 (N : Node_Id; Val : Node_Id);
2069       pragma Inline (Set_Node18);
2070
2071       procedure Set_Node19 (N : Node_Id; Val : Node_Id);
2072       pragma Inline (Set_Node19);
2073
2074       procedure Set_Node20 (N : Node_Id; Val : Node_Id);
2075       pragma Inline (Set_Node20);
2076
2077       procedure Set_Node21 (N : Node_Id; Val : Node_Id);
2078       pragma Inline (Set_Node21);
2079
2080       procedure Set_Node22 (N : Node_Id; Val : Node_Id);
2081       pragma Inline (Set_Node22);
2082
2083       procedure Set_Node23 (N : Node_Id; Val : Node_Id);
2084       pragma Inline (Set_Node23);
2085
2086       procedure Set_Node24 (N : Node_Id; Val : Node_Id);
2087       pragma Inline (Set_Node24);
2088
2089       procedure Set_Node25 (N : Node_Id; Val : Node_Id);
2090       pragma Inline (Set_Node25);
2091
2092       procedure Set_Node26 (N : Node_Id; Val : Node_Id);
2093       pragma Inline (Set_Node26);
2094
2095       procedure Set_Node27 (N : Node_Id; Val : Node_Id);
2096       pragma Inline (Set_Node27);
2097
2098       procedure Set_Node28 (N : Node_Id; Val : Node_Id);
2099       pragma Inline (Set_Node28);
2100
2101       procedure Set_List1 (N : Node_Id; Val : List_Id);
2102       pragma Inline (Set_List1);
2103
2104       procedure Set_List2 (N : Node_Id; Val : List_Id);
2105       pragma Inline (Set_List2);
2106
2107       procedure Set_List3 (N : Node_Id; Val : List_Id);
2108       pragma Inline (Set_List3);
2109
2110       procedure Set_List4 (N : Node_Id; Val : List_Id);
2111       pragma Inline (Set_List4);
2112
2113       procedure Set_List5 (N : Node_Id; Val : List_Id);
2114       pragma Inline (Set_List5);
2115
2116       procedure Set_List10 (N : Node_Id; Val : List_Id);
2117       pragma Inline (Set_List10);
2118
2119       procedure Set_List14 (N : Node_Id; Val : List_Id);
2120       pragma Inline (Set_List14);
2121
2122       procedure Set_Elist1 (N : Node_Id; Val : Elist_Id);
2123       pragma Inline (Set_Elist1);
2124
2125       procedure Set_Elist2 (N : Node_Id; Val : Elist_Id);
2126       pragma Inline (Set_Elist2);
2127
2128       procedure Set_Elist3 (N : Node_Id; Val : Elist_Id);
2129       pragma Inline (Set_Elist3);
2130
2131       procedure Set_Elist4 (N : Node_Id; Val : Elist_Id);
2132       pragma Inline (Set_Elist4);
2133
2134       procedure Set_Elist8 (N : Node_Id; Val : Elist_Id);
2135       pragma Inline (Set_Elist8);
2136
2137       procedure Set_Elist13 (N : Node_Id; Val : Elist_Id);
2138       pragma Inline (Set_Elist13);
2139
2140       procedure Set_Elist15 (N : Node_Id; Val : Elist_Id);
2141       pragma Inline (Set_Elist15);
2142
2143       procedure Set_Elist16 (N : Node_Id; Val : Elist_Id);
2144       pragma Inline (Set_Elist16);
2145
2146       procedure Set_Elist18 (N : Node_Id; Val : Elist_Id);
2147       pragma Inline (Set_Elist18);
2148
2149       procedure Set_Elist21 (N : Node_Id; Val : Elist_Id);
2150       pragma Inline (Set_Elist21);
2151
2152       procedure Set_Elist23 (N : Node_Id; Val : Elist_Id);
2153       pragma Inline (Set_Elist23);
2154
2155       procedure Set_Elist25 (N : Node_Id; Val : Elist_Id);
2156       pragma Inline (Set_Elist25);
2157
2158       procedure Set_Elist26 (N : Node_Id; Val : Elist_Id);
2159       pragma Inline (Set_Elist26);
2160
2161       procedure Set_Name1 (N : Node_Id; Val : Name_Id);
2162       pragma Inline (Set_Name1);
2163
2164       procedure Set_Name2 (N : Node_Id; Val : Name_Id);
2165       pragma Inline (Set_Name2);
2166
2167       procedure Set_Str3 (N : Node_Id; Val : String_Id);
2168       pragma Inline (Set_Str3);
2169
2170       procedure Set_Uint2 (N : Node_Id; Val : Uint);
2171       pragma Inline (Set_Uint2);
2172
2173       procedure Set_Uint3 (N : Node_Id; Val : Uint);
2174       pragma Inline (Set_Uint3);
2175
2176       procedure Set_Uint4 (N : Node_Id; Val : Uint);
2177       pragma Inline (Set_Uint4);
2178
2179       procedure Set_Uint5 (N : Node_Id; Val : Uint);
2180       pragma Inline (Set_Uint5);
2181
2182       procedure Set_Uint8 (N : Node_Id; Val : Uint);
2183       pragma Inline (Set_Uint8);
2184
2185       procedure Set_Uint9 (N : Node_Id; Val : Uint);
2186       pragma Inline (Set_Uint9);
2187
2188       procedure Set_Uint10 (N : Node_Id; Val : Uint);
2189       pragma Inline (Set_Uint10);
2190
2191       procedure Set_Uint11 (N : Node_Id; Val : Uint);
2192       pragma Inline (Set_Uint11);
2193
2194       procedure Set_Uint12 (N : Node_Id; Val : Uint);
2195       pragma Inline (Set_Uint12);
2196
2197       procedure Set_Uint13 (N : Node_Id; Val : Uint);
2198       pragma Inline (Set_Uint13);
2199
2200       procedure Set_Uint14 (N : Node_Id; Val : Uint);
2201       pragma Inline (Set_Uint14);
2202
2203       procedure Set_Uint15 (N : Node_Id; Val : Uint);
2204       pragma Inline (Set_Uint15);
2205
2206       procedure Set_Uint16 (N : Node_Id; Val : Uint);
2207       pragma Inline (Set_Uint16);
2208
2209       procedure Set_Uint17 (N : Node_Id; Val : Uint);
2210       pragma Inline (Set_Uint17);
2211
2212       procedure Set_Uint22 (N : Node_Id; Val : Uint);
2213       pragma Inline (Set_Uint22);
2214
2215       procedure Set_Ureal3 (N : Node_Id; Val : Ureal);
2216       pragma Inline (Set_Ureal3);
2217
2218       procedure Set_Ureal18 (N : Node_Id; Val : Ureal);
2219       pragma Inline (Set_Ureal18);
2220
2221       procedure Set_Ureal21 (N : Node_Id; Val : Ureal);
2222       pragma Inline (Set_Ureal21);
2223
2224       procedure Set_Flag4 (N : Node_Id; Val : Boolean);
2225       pragma Inline (Set_Flag4);
2226
2227       procedure Set_Flag5 (N : Node_Id; Val : Boolean);
2228       pragma Inline (Set_Flag5);
2229
2230       procedure Set_Flag6 (N : Node_Id; Val : Boolean);
2231       pragma Inline (Set_Flag6);
2232
2233       procedure Set_Flag7 (N : Node_Id; Val : Boolean);
2234       pragma Inline (Set_Flag7);
2235
2236       procedure Set_Flag8 (N : Node_Id; Val : Boolean);
2237       pragma Inline (Set_Flag8);
2238
2239       procedure Set_Flag9 (N : Node_Id; Val : Boolean);
2240       pragma Inline (Set_Flag9);
2241
2242       procedure Set_Flag10 (N : Node_Id; Val : Boolean);
2243       pragma Inline (Set_Flag10);
2244
2245       procedure Set_Flag11 (N : Node_Id; Val : Boolean);
2246       pragma Inline (Set_Flag11);
2247
2248       procedure Set_Flag12 (N : Node_Id; Val : Boolean);
2249       pragma Inline (Set_Flag12);
2250
2251       procedure Set_Flag13 (N : Node_Id; Val : Boolean);
2252       pragma Inline (Set_Flag13);
2253
2254       procedure Set_Flag14 (N : Node_Id; Val : Boolean);
2255       pragma Inline (Set_Flag14);
2256
2257       procedure Set_Flag15 (N : Node_Id; Val : Boolean);
2258       pragma Inline (Set_Flag15);
2259
2260       procedure Set_Flag16 (N : Node_Id; Val : Boolean);
2261       pragma Inline (Set_Flag16);
2262
2263       procedure Set_Flag17 (N : Node_Id; Val : Boolean);
2264       pragma Inline (Set_Flag17);
2265
2266       procedure Set_Flag18 (N : Node_Id; Val : Boolean);
2267       pragma Inline (Set_Flag18);
2268
2269       procedure Set_Flag19 (N : Node_Id; Val : Boolean);
2270       pragma Inline (Set_Flag19);
2271
2272       procedure Set_Flag20 (N : Node_Id; Val : Boolean);
2273       pragma Inline (Set_Flag20);
2274
2275       procedure Set_Flag21 (N : Node_Id; Val : Boolean);
2276       pragma Inline (Set_Flag21);
2277
2278       procedure Set_Flag22 (N : Node_Id; Val : Boolean);
2279       pragma Inline (Set_Flag22);
2280
2281       procedure Set_Flag23 (N : Node_Id; Val : Boolean);
2282       pragma Inline (Set_Flag23);
2283
2284       procedure Set_Flag24 (N : Node_Id; Val : Boolean);
2285       pragma Inline (Set_Flag24);
2286
2287       procedure Set_Flag25 (N : Node_Id; Val : Boolean);
2288       pragma Inline (Set_Flag25);
2289
2290       procedure Set_Flag26 (N : Node_Id; Val : Boolean);
2291       pragma Inline (Set_Flag26);
2292
2293       procedure Set_Flag27 (N : Node_Id; Val : Boolean);
2294       pragma Inline (Set_Flag27);
2295
2296       procedure Set_Flag28 (N : Node_Id; Val : Boolean);
2297       pragma Inline (Set_Flag28);
2298
2299       procedure Set_Flag29 (N : Node_Id; Val : Boolean);
2300       pragma Inline (Set_Flag29);
2301
2302       procedure Set_Flag30 (N : Node_Id; Val : Boolean);
2303       pragma Inline (Set_Flag30);
2304
2305       procedure Set_Flag31 (N : Node_Id; Val : Boolean);
2306       pragma Inline (Set_Flag31);
2307
2308       procedure Set_Flag32 (N : Node_Id; Val : Boolean);
2309       pragma Inline (Set_Flag32);
2310
2311       procedure Set_Flag33 (N : Node_Id; Val : Boolean);
2312       pragma Inline (Set_Flag33);
2313
2314       procedure Set_Flag34 (N : Node_Id; Val : Boolean);
2315       pragma Inline (Set_Flag34);
2316
2317       procedure Set_Flag35 (N : Node_Id; Val : Boolean);
2318       pragma Inline (Set_Flag35);
2319
2320       procedure Set_Flag36 (N : Node_Id; Val : Boolean);
2321       pragma Inline (Set_Flag36);
2322
2323       procedure Set_Flag37 (N : Node_Id; Val : Boolean);
2324       pragma Inline (Set_Flag37);
2325
2326       procedure Set_Flag38 (N : Node_Id; Val : Boolean);
2327       pragma Inline (Set_Flag38);
2328
2329       procedure Set_Flag39 (N : Node_Id; Val : Boolean);
2330       pragma Inline (Set_Flag39);
2331
2332       procedure Set_Flag40 (N : Node_Id; Val : Boolean);
2333       pragma Inline (Set_Flag40);
2334
2335       procedure Set_Flag41 (N : Node_Id; Val : Boolean);
2336       pragma Inline (Set_Flag41);
2337
2338       procedure Set_Flag42 (N : Node_Id; Val : Boolean);
2339       pragma Inline (Set_Flag42);
2340
2341       procedure Set_Flag43 (N : Node_Id; Val : Boolean);
2342       pragma Inline (Set_Flag43);
2343
2344       procedure Set_Flag44 (N : Node_Id; Val : Boolean);
2345       pragma Inline (Set_Flag44);
2346
2347       procedure Set_Flag45 (N : Node_Id; Val : Boolean);
2348       pragma Inline (Set_Flag45);
2349
2350       procedure Set_Flag46 (N : Node_Id; Val : Boolean);
2351       pragma Inline (Set_Flag46);
2352
2353       procedure Set_Flag47 (N : Node_Id; Val : Boolean);
2354       pragma Inline (Set_Flag47);
2355
2356       procedure Set_Flag48 (N : Node_Id; Val : Boolean);
2357       pragma Inline (Set_Flag48);
2358
2359       procedure Set_Flag49 (N : Node_Id; Val : Boolean);
2360       pragma Inline (Set_Flag49);
2361
2362       procedure Set_Flag50 (N : Node_Id; Val : Boolean);
2363       pragma Inline (Set_Flag50);
2364
2365       procedure Set_Flag51 (N : Node_Id; Val : Boolean);
2366       pragma Inline (Set_Flag51);
2367
2368       procedure Set_Flag52 (N : Node_Id; Val : Boolean);
2369       pragma Inline (Set_Flag52);
2370
2371       procedure Set_Flag53 (N : Node_Id; Val : Boolean);
2372       pragma Inline (Set_Flag53);
2373
2374       procedure Set_Flag54 (N : Node_Id; Val : Boolean);
2375       pragma Inline (Set_Flag54);
2376
2377       procedure Set_Flag55 (N : Node_Id; Val : Boolean);
2378       pragma Inline (Set_Flag55);
2379
2380       procedure Set_Flag56 (N : Node_Id; Val : Boolean);
2381       pragma Inline (Set_Flag56);
2382
2383       procedure Set_Flag57 (N : Node_Id; Val : Boolean);
2384       pragma Inline (Set_Flag57);
2385
2386       procedure Set_Flag58 (N : Node_Id; Val : Boolean);
2387       pragma Inline (Set_Flag58);
2388
2389       procedure Set_Flag59 (N : Node_Id; Val : Boolean);
2390       pragma Inline (Set_Flag59);
2391
2392       procedure Set_Flag60 (N : Node_Id; Val : Boolean);
2393       pragma Inline (Set_Flag60);
2394
2395       procedure Set_Flag61 (N : Node_Id; Val : Boolean);
2396       pragma Inline (Set_Flag61);
2397
2398       procedure Set_Flag62 (N : Node_Id; Val : Boolean);
2399       pragma Inline (Set_Flag62);
2400
2401       procedure Set_Flag63 (N : Node_Id; Val : Boolean);
2402       pragma Inline (Set_Flag63);
2403
2404       procedure Set_Flag64 (N : Node_Id; Val : Boolean);
2405       pragma Inline (Set_Flag64);
2406
2407       procedure Set_Flag65 (N : Node_Id; Val : Boolean);
2408       pragma Inline (Set_Flag65);
2409
2410       procedure Set_Flag66 (N : Node_Id; Val : Boolean);
2411       pragma Inline (Set_Flag66);
2412
2413       procedure Set_Flag67 (N : Node_Id; Val : Boolean);
2414       pragma Inline (Set_Flag67);
2415
2416       procedure Set_Flag68 (N : Node_Id; Val : Boolean);
2417       pragma Inline (Set_Flag68);
2418
2419       procedure Set_Flag69 (N : Node_Id; Val : Boolean);
2420       pragma Inline (Set_Flag69);
2421
2422       procedure Set_Flag70 (N : Node_Id; Val : Boolean);
2423       pragma Inline (Set_Flag70);
2424
2425       procedure Set_Flag71 (N : Node_Id; Val : Boolean);
2426       pragma Inline (Set_Flag71);
2427
2428       procedure Set_Flag72 (N : Node_Id; Val : Boolean);
2429       pragma Inline (Set_Flag72);
2430
2431       procedure Set_Flag73 (N : Node_Id; Val : Boolean);
2432       pragma Inline (Set_Flag73);
2433
2434       procedure Set_Flag74 (N : Node_Id; Val : Boolean);
2435       pragma Inline (Set_Flag74);
2436
2437       procedure Set_Flag75 (N : Node_Id; Val : Boolean);
2438       pragma Inline (Set_Flag75);
2439
2440       procedure Set_Flag76 (N : Node_Id; Val : Boolean);
2441       pragma Inline (Set_Flag76);
2442
2443       procedure Set_Flag77 (N : Node_Id; Val : Boolean);
2444       pragma Inline (Set_Flag77);
2445
2446       procedure Set_Flag78 (N : Node_Id; Val : Boolean);
2447       pragma Inline (Set_Flag78);
2448
2449       procedure Set_Flag79 (N : Node_Id; Val : Boolean);
2450       pragma Inline (Set_Flag79);
2451
2452       procedure Set_Flag80 (N : Node_Id; Val : Boolean);
2453       pragma Inline (Set_Flag80);
2454
2455       procedure Set_Flag81 (N : Node_Id; Val : Boolean);
2456       pragma Inline (Set_Flag81);
2457
2458       procedure Set_Flag82 (N : Node_Id; Val : Boolean);
2459       pragma Inline (Set_Flag82);
2460
2461       procedure Set_Flag83 (N : Node_Id; Val : Boolean);
2462       pragma Inline (Set_Flag83);
2463
2464       procedure Set_Flag84 (N : Node_Id; Val : Boolean);
2465       pragma Inline (Set_Flag84);
2466
2467       procedure Set_Flag85 (N : Node_Id; Val : Boolean);
2468       pragma Inline (Set_Flag85);
2469
2470       procedure Set_Flag86 (N : Node_Id; Val : Boolean);
2471       pragma Inline (Set_Flag86);
2472
2473       procedure Set_Flag87 (N : Node_Id; Val : Boolean);
2474       pragma Inline (Set_Flag87);
2475
2476       procedure Set_Flag88 (N : Node_Id; Val : Boolean);
2477       pragma Inline (Set_Flag88);
2478
2479       procedure Set_Flag89 (N : Node_Id; Val : Boolean);
2480       pragma Inline (Set_Flag89);
2481
2482       procedure Set_Flag90 (N : Node_Id; Val : Boolean);
2483       pragma Inline (Set_Flag90);
2484
2485       procedure Set_Flag91 (N : Node_Id; Val : Boolean);
2486       pragma Inline (Set_Flag91);
2487
2488       procedure Set_Flag92 (N : Node_Id; Val : Boolean);
2489       pragma Inline (Set_Flag92);
2490
2491       procedure Set_Flag93 (N : Node_Id; Val : Boolean);
2492       pragma Inline (Set_Flag93);
2493
2494       procedure Set_Flag94 (N : Node_Id; Val : Boolean);
2495       pragma Inline (Set_Flag94);
2496
2497       procedure Set_Flag95 (N : Node_Id; Val : Boolean);
2498       pragma Inline (Set_Flag95);
2499
2500       procedure Set_Flag96 (N : Node_Id; Val : Boolean);
2501       pragma Inline (Set_Flag96);
2502
2503       procedure Set_Flag97 (N : Node_Id; Val : Boolean);
2504       pragma Inline (Set_Flag97);
2505
2506       procedure Set_Flag98 (N : Node_Id; Val : Boolean);
2507       pragma Inline (Set_Flag98);
2508
2509       procedure Set_Flag99 (N : Node_Id; Val : Boolean);
2510       pragma Inline (Set_Flag99);
2511
2512       procedure Set_Flag100 (N : Node_Id; Val : Boolean);
2513       pragma Inline (Set_Flag100);
2514
2515       procedure Set_Flag101 (N : Node_Id; Val : Boolean);
2516       pragma Inline (Set_Flag101);
2517
2518       procedure Set_Flag102 (N : Node_Id; Val : Boolean);
2519       pragma Inline (Set_Flag102);
2520
2521       procedure Set_Flag103 (N : Node_Id; Val : Boolean);
2522       pragma Inline (Set_Flag103);
2523
2524       procedure Set_Flag104 (N : Node_Id; Val : Boolean);
2525       pragma Inline (Set_Flag104);
2526
2527       procedure Set_Flag105 (N : Node_Id; Val : Boolean);
2528       pragma Inline (Set_Flag105);
2529
2530       procedure Set_Flag106 (N : Node_Id; Val : Boolean);
2531       pragma Inline (Set_Flag106);
2532
2533       procedure Set_Flag107 (N : Node_Id; Val : Boolean);
2534       pragma Inline (Set_Flag107);
2535
2536       procedure Set_Flag108 (N : Node_Id; Val : Boolean);
2537       pragma Inline (Set_Flag108);
2538
2539       procedure Set_Flag109 (N : Node_Id; Val : Boolean);
2540       pragma Inline (Set_Flag109);
2541
2542       procedure Set_Flag110 (N : Node_Id; Val : Boolean);
2543       pragma Inline (Set_Flag110);
2544
2545       procedure Set_Flag111 (N : Node_Id; Val : Boolean);
2546       pragma Inline (Set_Flag111);
2547
2548       procedure Set_Flag112 (N : Node_Id; Val : Boolean);
2549       pragma Inline (Set_Flag112);
2550
2551       procedure Set_Flag113 (N : Node_Id; Val : Boolean);
2552       pragma Inline (Set_Flag113);
2553
2554       procedure Set_Flag114 (N : Node_Id; Val : Boolean);
2555       pragma Inline (Set_Flag114);
2556
2557       procedure Set_Flag115 (N : Node_Id; Val : Boolean);
2558       pragma Inline (Set_Flag115);
2559
2560       procedure Set_Flag116 (N : Node_Id; Val : Boolean);
2561       pragma Inline (Set_Flag116);
2562
2563       procedure Set_Flag117 (N : Node_Id; Val : Boolean);
2564       pragma Inline (Set_Flag117);
2565
2566       procedure Set_Flag118 (N : Node_Id; Val : Boolean);
2567       pragma Inline (Set_Flag118);
2568
2569       procedure Set_Flag119 (N : Node_Id; Val : Boolean);
2570       pragma Inline (Set_Flag119);
2571
2572       procedure Set_Flag120 (N : Node_Id; Val : Boolean);
2573       pragma Inline (Set_Flag120);
2574
2575       procedure Set_Flag121 (N : Node_Id; Val : Boolean);
2576       pragma Inline (Set_Flag121);
2577
2578       procedure Set_Flag122 (N : Node_Id; Val : Boolean);
2579       pragma Inline (Set_Flag122);
2580
2581       procedure Set_Flag123 (N : Node_Id; Val : Boolean);
2582       pragma Inline (Set_Flag123);
2583
2584       procedure Set_Flag124 (N : Node_Id; Val : Boolean);
2585       pragma Inline (Set_Flag124);
2586
2587       procedure Set_Flag125 (N : Node_Id; Val : Boolean);
2588       pragma Inline (Set_Flag125);
2589
2590       procedure Set_Flag126 (N : Node_Id; Val : Boolean);
2591       pragma Inline (Set_Flag126);
2592
2593       procedure Set_Flag127 (N : Node_Id; Val : Boolean);
2594       pragma Inline (Set_Flag127);
2595
2596       procedure Set_Flag128 (N : Node_Id; Val : Boolean);
2597       pragma Inline (Set_Flag128);
2598
2599       procedure Set_Flag129 (N : Node_Id; Val : Boolean);
2600       pragma Inline (Set_Flag129);
2601
2602       procedure Set_Flag130 (N : Node_Id; Val : Boolean);
2603       pragma Inline (Set_Flag130);
2604
2605       procedure Set_Flag131 (N : Node_Id; Val : Boolean);
2606       pragma Inline (Set_Flag131);
2607
2608       procedure Set_Flag132 (N : Node_Id; Val : Boolean);
2609       pragma Inline (Set_Flag132);
2610
2611       procedure Set_Flag133 (N : Node_Id; Val : Boolean);
2612       pragma Inline (Set_Flag133);
2613
2614       procedure Set_Flag134 (N : Node_Id; Val : Boolean);
2615       pragma Inline (Set_Flag134);
2616
2617       procedure Set_Flag135 (N : Node_Id; Val : Boolean);
2618       pragma Inline (Set_Flag135);
2619
2620       procedure Set_Flag136 (N : Node_Id; Val : Boolean);
2621       pragma Inline (Set_Flag136);
2622
2623       procedure Set_Flag137 (N : Node_Id; Val : Boolean);
2624       pragma Inline (Set_Flag137);
2625
2626       procedure Set_Flag138 (N : Node_Id; Val : Boolean);
2627       pragma Inline (Set_Flag138);
2628
2629       procedure Set_Flag139 (N : Node_Id; Val : Boolean);
2630       pragma Inline (Set_Flag139);
2631
2632       procedure Set_Flag140 (N : Node_Id; Val : Boolean);
2633       pragma Inline (Set_Flag140);
2634
2635       procedure Set_Flag141 (N : Node_Id; Val : Boolean);
2636       pragma Inline (Set_Flag141);
2637
2638       procedure Set_Flag142 (N : Node_Id; Val : Boolean);
2639       pragma Inline (Set_Flag142);
2640
2641       procedure Set_Flag143 (N : Node_Id; Val : Boolean);
2642       pragma Inline (Set_Flag143);
2643
2644       procedure Set_Flag144 (N : Node_Id; Val : Boolean);
2645       pragma Inline (Set_Flag144);
2646
2647       procedure Set_Flag145 (N : Node_Id; Val : Boolean);
2648       pragma Inline (Set_Flag145);
2649
2650       procedure Set_Flag146 (N : Node_Id; Val : Boolean);
2651       pragma Inline (Set_Flag146);
2652
2653       procedure Set_Flag147 (N : Node_Id; Val : Boolean);
2654       pragma Inline (Set_Flag147);
2655
2656       procedure Set_Flag148 (N : Node_Id; Val : Boolean);
2657       pragma Inline (Set_Flag148);
2658
2659       procedure Set_Flag149 (N : Node_Id; Val : Boolean);
2660       pragma Inline (Set_Flag149);
2661
2662       procedure Set_Flag150 (N : Node_Id; Val : Boolean);
2663       pragma Inline (Set_Flag150);
2664
2665       procedure Set_Flag151 (N : Node_Id; Val : Boolean);
2666       pragma Inline (Set_Flag151);
2667
2668       procedure Set_Flag152 (N : Node_Id; Val : Boolean);
2669       pragma Inline (Set_Flag152);
2670
2671       procedure Set_Flag153 (N : Node_Id; Val : Boolean);
2672       pragma Inline (Set_Flag153);
2673
2674       procedure Set_Flag154 (N : Node_Id; Val : Boolean);
2675       pragma Inline (Set_Flag154);
2676
2677       procedure Set_Flag155 (N : Node_Id; Val : Boolean);
2678       pragma Inline (Set_Flag155);
2679
2680       procedure Set_Flag156 (N : Node_Id; Val : Boolean);
2681       pragma Inline (Set_Flag156);
2682
2683       procedure Set_Flag157 (N : Node_Id; Val : Boolean);
2684       pragma Inline (Set_Flag157);
2685
2686       procedure Set_Flag158 (N : Node_Id; Val : Boolean);
2687       pragma Inline (Set_Flag158);
2688
2689       procedure Set_Flag159 (N : Node_Id; Val : Boolean);
2690       pragma Inline (Set_Flag159);
2691
2692       procedure Set_Flag160 (N : Node_Id; Val : Boolean);
2693       pragma Inline (Set_Flag160);
2694
2695       procedure Set_Flag161 (N : Node_Id; Val : Boolean);
2696       pragma Inline (Set_Flag161);
2697
2698       procedure Set_Flag162 (N : Node_Id; Val : Boolean);
2699       pragma Inline (Set_Flag162);
2700
2701       procedure Set_Flag163 (N : Node_Id; Val : Boolean);
2702       pragma Inline (Set_Flag163);
2703
2704       procedure Set_Flag164 (N : Node_Id; Val : Boolean);
2705       pragma Inline (Set_Flag164);
2706
2707       procedure Set_Flag165 (N : Node_Id; Val : Boolean);
2708       pragma Inline (Set_Flag165);
2709
2710       procedure Set_Flag166 (N : Node_Id; Val : Boolean);
2711       pragma Inline (Set_Flag166);
2712
2713       procedure Set_Flag167 (N : Node_Id; Val : Boolean);
2714       pragma Inline (Set_Flag167);
2715
2716       procedure Set_Flag168 (N : Node_Id; Val : Boolean);
2717       pragma Inline (Set_Flag168);
2718
2719       procedure Set_Flag169 (N : Node_Id; Val : Boolean);
2720       pragma Inline (Set_Flag169);
2721
2722       procedure Set_Flag170 (N : Node_Id; Val : Boolean);
2723       pragma Inline (Set_Flag170);
2724
2725       procedure Set_Flag171 (N : Node_Id; Val : Boolean);
2726       pragma Inline (Set_Flag171);
2727
2728       procedure Set_Flag172 (N : Node_Id; Val : Boolean);
2729       pragma Inline (Set_Flag172);
2730
2731       procedure Set_Flag173 (N : Node_Id; Val : Boolean);
2732       pragma Inline (Set_Flag173);
2733
2734       procedure Set_Flag174 (N : Node_Id; Val : Boolean);
2735       pragma Inline (Set_Flag174);
2736
2737       procedure Set_Flag175 (N : Node_Id; Val : Boolean);
2738       pragma Inline (Set_Flag175);
2739
2740       procedure Set_Flag176 (N : Node_Id; Val : Boolean);
2741       pragma Inline (Set_Flag176);
2742
2743       procedure Set_Flag177 (N : Node_Id; Val : Boolean);
2744       pragma Inline (Set_Flag177);
2745
2746       procedure Set_Flag178 (N : Node_Id; Val : Boolean);
2747       pragma Inline (Set_Flag178);
2748
2749       procedure Set_Flag179 (N : Node_Id; Val : Boolean);
2750       pragma Inline (Set_Flag179);
2751
2752       procedure Set_Flag180 (N : Node_Id; Val : Boolean);
2753       pragma Inline (Set_Flag180);
2754
2755       procedure Set_Flag181 (N : Node_Id; Val : Boolean);
2756       pragma Inline (Set_Flag181);
2757
2758       procedure Set_Flag182 (N : Node_Id; Val : Boolean);
2759       pragma Inline (Set_Flag182);
2760
2761       procedure Set_Flag183 (N : Node_Id; Val : Boolean);
2762       pragma Inline (Set_Flag183);
2763
2764       procedure Set_Flag184 (N : Node_Id; Val : Boolean);
2765       pragma Inline (Set_Flag184);
2766
2767       procedure Set_Flag185 (N : Node_Id; Val : Boolean);
2768       pragma Inline (Set_Flag185);
2769
2770       procedure Set_Flag186 (N : Node_Id; Val : Boolean);
2771       pragma Inline (Set_Flag186);
2772
2773       procedure Set_Flag187 (N : Node_Id; Val : Boolean);
2774       pragma Inline (Set_Flag187);
2775
2776       procedure Set_Flag188 (N : Node_Id; Val : Boolean);
2777       pragma Inline (Set_Flag188);
2778
2779       procedure Set_Flag189 (N : Node_Id; Val : Boolean);
2780       pragma Inline (Set_Flag189);
2781
2782       procedure Set_Flag190 (N : Node_Id; Val : Boolean);
2783       pragma Inline (Set_Flag190);
2784
2785       procedure Set_Flag191 (N : Node_Id; Val : Boolean);
2786       pragma Inline (Set_Flag191);
2787
2788       procedure Set_Flag192 (N : Node_Id; Val : Boolean);
2789       pragma Inline (Set_Flag192);
2790
2791       procedure Set_Flag193 (N : Node_Id; Val : Boolean);
2792       pragma Inline (Set_Flag193);
2793
2794       procedure Set_Flag194 (N : Node_Id; Val : Boolean);
2795       pragma Inline (Set_Flag194);
2796
2797       procedure Set_Flag195 (N : Node_Id; Val : Boolean);
2798       pragma Inline (Set_Flag195);
2799
2800       procedure Set_Flag196 (N : Node_Id; Val : Boolean);
2801       pragma Inline (Set_Flag196);
2802
2803       procedure Set_Flag197 (N : Node_Id; Val : Boolean);
2804       pragma Inline (Set_Flag197);
2805
2806       procedure Set_Flag198 (N : Node_Id; Val : Boolean);
2807       pragma Inline (Set_Flag198);
2808
2809       procedure Set_Flag199 (N : Node_Id; Val : Boolean);
2810       pragma Inline (Set_Flag199);
2811
2812       procedure Set_Flag200 (N : Node_Id; Val : Boolean);
2813       pragma Inline (Set_Flag200);
2814
2815       procedure Set_Flag201 (N : Node_Id; Val : Boolean);
2816       pragma Inline (Set_Flag201);
2817
2818       procedure Set_Flag202 (N : Node_Id; Val : Boolean);
2819       pragma Inline (Set_Flag202);
2820
2821       procedure Set_Flag203 (N : Node_Id; Val : Boolean);
2822       pragma Inline (Set_Flag203);
2823
2824       procedure Set_Flag204 (N : Node_Id; Val : Boolean);
2825       pragma Inline (Set_Flag204);
2826
2827       procedure Set_Flag205 (N : Node_Id; Val : Boolean);
2828       pragma Inline (Set_Flag205);
2829
2830       procedure Set_Flag206 (N : Node_Id; Val : Boolean);
2831       pragma Inline (Set_Flag206);
2832
2833       procedure Set_Flag207 (N : Node_Id; Val : Boolean);
2834       pragma Inline (Set_Flag207);
2835
2836       procedure Set_Flag208 (N : Node_Id; Val : Boolean);
2837       pragma Inline (Set_Flag208);
2838
2839       procedure Set_Flag209 (N : Node_Id; Val : Boolean);
2840       pragma Inline (Set_Flag209);
2841
2842       procedure Set_Flag210 (N : Node_Id; Val : Boolean);
2843       pragma Inline (Set_Flag210);
2844
2845       procedure Set_Flag211 (N : Node_Id; Val : Boolean);
2846       pragma Inline (Set_Flag211);
2847
2848       procedure Set_Flag212 (N : Node_Id; Val : Boolean);
2849       pragma Inline (Set_Flag212);
2850
2851       procedure Set_Flag213 (N : Node_Id; Val : Boolean);
2852       pragma Inline (Set_Flag213);
2853
2854       procedure Set_Flag214 (N : Node_Id; Val : Boolean);
2855       pragma Inline (Set_Flag214);
2856
2857       procedure Set_Flag215 (N : Node_Id; Val : Boolean);
2858       pragma Inline (Set_Flag215);
2859
2860       procedure Set_Flag216 (N : Node_Id; Val : Boolean);
2861       pragma Inline (Set_Flag216);
2862
2863       procedure Set_Flag217 (N : Node_Id; Val : Boolean);
2864       pragma Inline (Set_Flag217);
2865
2866       procedure Set_Flag218 (N : Node_Id; Val : Boolean);
2867       pragma Inline (Set_Flag218);
2868
2869       procedure Set_Flag219 (N : Node_Id; Val : Boolean);
2870       pragma Inline (Set_Flag219);
2871
2872       procedure Set_Flag220 (N : Node_Id; Val : Boolean);
2873       pragma Inline (Set_Flag220);
2874
2875       procedure Set_Flag221 (N : Node_Id; Val : Boolean);
2876       pragma Inline (Set_Flag221);
2877
2878       procedure Set_Flag222 (N : Node_Id; Val : Boolean);
2879       pragma Inline (Set_Flag222);
2880
2881       procedure Set_Flag223 (N : Node_Id; Val : Boolean);
2882       pragma Inline (Set_Flag223);
2883
2884       procedure Set_Flag224 (N : Node_Id; Val : Boolean);
2885       pragma Inline (Set_Flag224);
2886
2887       procedure Set_Flag225 (N : Node_Id; Val : Boolean);
2888       pragma Inline (Set_Flag225);
2889
2890       procedure Set_Flag226 (N : Node_Id; Val : Boolean);
2891       pragma Inline (Set_Flag226);
2892
2893       procedure Set_Flag227 (N : Node_Id; Val : Boolean);
2894       pragma Inline (Set_Flag227);
2895
2896       procedure Set_Flag228 (N : Node_Id; Val : Boolean);
2897       pragma Inline (Set_Flag228);
2898
2899       procedure Set_Flag229 (N : Node_Id; Val : Boolean);
2900       pragma Inline (Set_Flag229);
2901
2902       procedure Set_Flag230 (N : Node_Id; Val : Boolean);
2903       pragma Inline (Set_Flag230);
2904
2905       procedure Set_Flag231 (N : Node_Id; Val : Boolean);
2906       pragma Inline (Set_Flag231);
2907
2908       procedure Set_Flag232 (N : Node_Id; Val : Boolean);
2909       pragma Inline (Set_Flag232);
2910
2911       procedure Set_Flag233 (N : Node_Id; Val : Boolean);
2912       pragma Inline (Set_Flag233);
2913
2914       procedure Set_Flag234 (N : Node_Id; Val : Boolean);
2915       pragma Inline (Set_Flag234);
2916
2917       procedure Set_Flag235 (N : Node_Id; Val : Boolean);
2918       pragma Inline (Set_Flag235);
2919
2920       procedure Set_Flag236 (N : Node_Id; Val : Boolean);
2921       pragma Inline (Set_Flag236);
2922
2923       procedure Set_Flag237 (N : Node_Id; Val : Boolean);
2924       pragma Inline (Set_Flag237);
2925
2926       procedure Set_Flag238 (N : Node_Id; Val : Boolean);
2927       pragma Inline (Set_Flag238);
2928
2929       procedure Set_Flag239 (N : Node_Id; Val : Boolean);
2930       pragma Inline (Set_Flag239);
2931
2932       procedure Set_Flag240 (N : Node_Id; Val : Boolean);
2933       pragma Inline (Set_Flag240);
2934
2935       procedure Set_Flag241 (N : Node_Id; Val : Boolean);
2936       pragma Inline (Set_Flag241);
2937
2938       procedure Set_Flag242 (N : Node_Id; Val : Boolean);
2939       pragma Inline (Set_Flag242);
2940
2941       procedure Set_Flag243 (N : Node_Id; Val : Boolean);
2942       pragma Inline (Set_Flag243);
2943
2944       procedure Set_Flag244 (N : Node_Id; Val : Boolean);
2945       pragma Inline (Set_Flag244);
2946
2947       procedure Set_Flag245 (N : Node_Id; Val : Boolean);
2948       pragma Inline (Set_Flag245);
2949
2950       procedure Set_Flag246 (N : Node_Id; Val : Boolean);
2951       pragma Inline (Set_Flag246);
2952
2953       procedure Set_Flag247 (N : Node_Id; Val : Boolean);
2954       pragma Inline (Set_Flag247);
2955
2956       --  The following versions of Set_Noden also set the parent
2957       --  pointer of the referenced node if it is non_Empty
2958
2959       procedure Set_Node1_With_Parent (N : Node_Id; Val : Node_Id);
2960       pragma Inline (Set_Node1_With_Parent);
2961
2962       procedure Set_Node2_With_Parent (N : Node_Id; Val : Node_Id);
2963       pragma Inline (Set_Node2_With_Parent);
2964
2965       procedure Set_Node3_With_Parent (N : Node_Id; Val : Node_Id);
2966       pragma Inline (Set_Node3_With_Parent);
2967
2968       procedure Set_Node4_With_Parent (N : Node_Id; Val : Node_Id);
2969       pragma Inline (Set_Node4_With_Parent);
2970
2971       procedure Set_Node5_With_Parent (N : Node_Id; Val : Node_Id);
2972       pragma Inline (Set_Node5_With_Parent);
2973
2974       --  The following versions of Set_Listn also set the parent pointer of
2975       --  the referenced node if it is non_Empty. The procedures for List6
2976       --  to List12 can only be applied to nodes which have an extension.
2977
2978       procedure Set_List1_With_Parent (N : Node_Id; Val : List_Id);
2979       pragma Inline (Set_List1_With_Parent);
2980
2981       procedure Set_List2_With_Parent (N : Node_Id; Val : List_Id);
2982       pragma Inline (Set_List2_With_Parent);
2983
2984       procedure Set_List3_With_Parent (N : Node_Id; Val : List_Id);
2985       pragma Inline (Set_List3_With_Parent);
2986
2987       procedure Set_List4_With_Parent (N : Node_Id; Val : List_Id);
2988       pragma Inline (Set_List4_With_Parent);
2989
2990       procedure Set_List5_With_Parent (N : Node_Id; Val : List_Id);
2991       pragma Inline (Set_List5_With_Parent);
2992
2993    end Unchecked_Access;
2994
2995    -----------------------------
2996    -- Private Part Subpackage --
2997    -----------------------------
2998
2999    --  The following package contains the definition of the data structure
3000    --  used by the implementation of the Atree package. Logically it really
3001    --  corresponds to the private part, hence the name. The reason that it
3002    --  is defined as a sub-package is to allow special access from clients
3003    --  that need to see the internals of the data structures.
3004
3005    package Atree_Private_Part is
3006
3007       -------------------------
3008       -- Tree Representation --
3009       -------------------------
3010
3011       --  The nodes of the tree are stored in a table (i.e. an array). In the
3012       --  case of extended nodes five consecutive components in the array are
3013       --  used. There are thus two formats for array components. One is used
3014       --  for non-extended nodes, and for the first component of extended
3015       --  nodes. The other is used for the extension parts (second, third,
3016       --  fourth and fifth components) of an extended node. A variant record
3017       --  structure is used to distinguish the two formats.
3018
3019       type Node_Record (Is_Extension : Boolean := False) is record
3020
3021          --  Logically, the only field in the common part is the above
3022          --  Is_Extension discriminant (a single bit). However, Gigi cannot
3023          --  yet handle such a structure, so we fill out the common part of
3024          --  the record with fields that are used in different ways for
3025          --  normal nodes and node extensions.
3026
3027          Pflag1, Pflag2 : Boolean;
3028          --  The Paren_Count field is represented using two boolean flags,
3029          --  where Pflag1 is worth 1, and Pflag2 is worth 2. This is done
3030          --  because we need to be easily able to reuse this field for
3031          --  extra flags in the extended node case.
3032
3033          In_List : Boolean;
3034          --  Flag used to indicate if node is a member of a list.
3035          --  This field is considered private to the Atree package.
3036
3037          Unused_1 : Boolean;
3038          --  Currently unused flag
3039
3040          Rewrite_Ins : Boolean;
3041          --  Flag set by Mark_Rewrite_Insertion procedure.
3042          --  This field is considered private to the Atree package.
3043
3044          Analyzed : Boolean;
3045          --  Flag to indicate the node has been analyzed (and expanded)
3046
3047          Comes_From_Source : Boolean;
3048          --  Flag to indicate that node comes from the source program (i.e.
3049          --  was built by the parser or scanner, not the analyzer or expander).
3050
3051          Error_Posted : Boolean;
3052          --  Flag to indicate that an error message has been posted on the
3053          --  node (to avoid duplicate flags on the same node)
3054
3055          Flag4  : Boolean;
3056          Flag5  : Boolean;
3057          Flag6  : Boolean;
3058          Flag7  : Boolean;
3059          Flag8  : Boolean;
3060          Flag9  : Boolean;
3061          Flag10 : Boolean;
3062          Flag11 : Boolean;
3063          Flag12 : Boolean;
3064          Flag13 : Boolean;
3065          Flag14 : Boolean;
3066          Flag15 : Boolean;
3067          Flag16 : Boolean;
3068          Flag17 : Boolean;
3069          Flag18 : Boolean;
3070          --  The eighteen flags for a normal node
3071
3072          --  The above fields are used as follows in components 2-4 of
3073          --  an extended node entry. These fields are not currently
3074          --  used in component 5 (where we still have lots of room!)
3075
3076          --    In_List            used as  Flag19, Flag40, Flag129
3077          --    Unused_1           used as  Flag20, Flag41, Flag130
3078          --    Rewrite_Ins        used as  Flag21, Flag42, Flag131
3079          --    Analyzed           used as  Flag22, Flag43, Flag132
3080          --    Comes_From_Source  used as  Flag23, Flag44, Flag133
3081          --    Error_Posted       used as  Flag24, Flag45, Flag134
3082          --    Flag4              used as  Flag25, Flag46, Flag135
3083          --    Flag5              used as  Flag26, Flag47, Flag136
3084          --    Flag6              used as  Flag27, Flag48, Flag137
3085          --    Flag7              used as  Flag28, Flag49, Flag138
3086          --    Flag8              used as  Flag29, Flag50, Flag139
3087          --    Flag9              used as  Flag30, Flag51, Flag140
3088          --    Flag10             used as  Flag31, Flag52, Flag141
3089          --    Flag11             used as  Flag32, Flag53, Flag142
3090          --    Flag12             used as  Flag33, Flag54, Flag143
3091          --    Flag13             used as  Flag34, Flag55, Flag144
3092          --    Flag14             used as  Flag35, Flag56, Flag145
3093          --    Flag15             used as  Flag36, Flag57, Flag146
3094          --    Flag16             used as  Flag37, Flag58, Flag147
3095          --    Flag17             used as  Flag38, Flag59, Flag148
3096          --    Flag18             used as  Flag39, Flag60, Flag149
3097          --    Pflag1             used as  Flag61, Flag62, Flag150
3098          --    Pflag2             used as  Flag63, Flag64, Flag151
3099
3100          Nkind : Node_Kind;
3101          --  For a non-extended node, or the initial section of an extended
3102          --  node, this field holds the Node_Kind value. For an extended node,
3103          --  The Nkind field is used as follows:
3104          --
3105          --     Second entry: holds the Ekind field of the entity
3106          --     Third entry:  holds 8 additional flags (Flag65-Flag72)
3107          --     Fourth entry: not currently used
3108
3109          --  Now finally (on an 32-bit boundary!) comes the variant part
3110
3111          case Is_Extension is
3112
3113             --  Non-extended node, or first component of extended node
3114
3115             when False =>
3116
3117                Sloc : Source_Ptr;
3118                --  Source location for this node
3119
3120                Link : Union_Id;
3121                --  This field is used either as the Parent pointer (if In_List
3122                --  is False), or to point to the list header (if In_List is
3123                --  True). This field is considered private and can be modified
3124                --  only by Atree or by Nlists.
3125
3126                Field1 : Union_Id;
3127                Field2 : Union_Id;
3128                Field3 : Union_Id;
3129                Field4 : Union_Id;
3130                Field5 : Union_Id;
3131                --  Five general use fields, which can contain Node_Id, List_Id,
3132                --  Elist_Id, String_Id, or Name_Id values depending on the
3133                --  values in Nkind and (for extended nodes), in Ekind. See
3134                --  packages Sinfo and Einfo for details of their use.
3135
3136             --  Extension (second component) of extended node
3137
3138             when True =>
3139
3140                Field6  : Union_Id;
3141                Field7  : Union_Id;
3142                Field8  : Union_Id;
3143                Field9  : Union_Id;
3144                Field10 : Union_Id;
3145                Field11 : Union_Id;
3146                Field12 : Union_Id;
3147                --  Seven additional general fields available only for entities
3148                --  See package Einfo for details of their use (which depends
3149                --  on the value in the Ekind field).
3150
3151             --  In the third component, the extension format as described
3152             --  above is used to hold additional general fields and flags
3153             --  as follows:
3154
3155             --    Field6-11      Holds Field13-Field18
3156             --    Field12        Holds Flag73-Flag96 and Convention
3157
3158             --  In the fourth component, the extension format as described
3159             --  above is used to hold additional general fields and flags
3160             --  as follows:
3161
3162             --    Field6-10      Holds Field19-Field23
3163             --    Field11        Holds Flag152-Flag183
3164             --    Field12        Holds Flag97-Flag128
3165
3166             --  In the fifth component, the extension format as described
3167             --  above is used to hold additional general fields and flags
3168             --  as follows:
3169
3170             --    Field6-10      Holds Field24-Field28
3171             --    Field11        Holds Flag184-Flag215
3172             --    Field12        Holds Flag216-Flag247
3173
3174          end case;
3175       end record;
3176
3177       pragma Pack (Node_Record);
3178       for Node_Record'Size use 8*32;
3179       for Node_Record'Alignment use 4;
3180
3181       function E_To_N is new Unchecked_Conversion (Entity_Kind, Node_Kind);
3182       function N_To_E is new Unchecked_Conversion (Node_Kind, Entity_Kind);
3183
3184       --  Default value used to initialize default nodes. Note that some of the
3185       --  fields get overwritten, and in particular, Nkind always gets reset.
3186
3187       Default_Node : Node_Record := (
3188          Is_Extension      => False,
3189          Pflag1            => False,
3190          Pflag2            => False,
3191          In_List           => False,
3192          Unused_1          => False,
3193          Rewrite_Ins       => False,
3194          Analyzed          => False,
3195          Comes_From_Source => False,
3196          --  modified by Set_Comes_From_Source_Default
3197          Error_Posted      => False,
3198          Flag4             => False,
3199
3200          Flag5             => False,
3201          Flag6             => False,
3202          Flag7             => False,
3203          Flag8             => False,
3204          Flag9             => False,
3205          Flag10            => False,
3206          Flag11            => False,
3207          Flag12            => False,
3208
3209          Flag13            => False,
3210          Flag14            => False,
3211          Flag15            => False,
3212          Flag16            => False,
3213          Flag17            => False,
3214          Flag18            => False,
3215
3216          Nkind             => N_Unused_At_Start,
3217
3218          Sloc              => No_Location,
3219          Link              => Empty_List_Or_Node,
3220          Field1            => Empty_List_Or_Node,
3221          Field2            => Empty_List_Or_Node,
3222          Field3            => Empty_List_Or_Node,
3223          Field4            => Empty_List_Or_Node,
3224          Field5            => Empty_List_Or_Node);
3225
3226       --  Default value used to initialize node extensions (i.e. the second
3227       --  and third and fourth components of an extended node). Note we are
3228       --  cheating a bit here when it comes to Node12, which really holds
3229       --  flags an (for the third component), the convention. But it works
3230       --  because Empty, False, Convention_Ada, all happen to be all zero bits.
3231
3232       Default_Node_Extension : constant Node_Record := (
3233          Is_Extension      => True,
3234          Pflag1            => False,
3235          Pflag2            => False,
3236          In_List           => False,
3237          Unused_1          => False,
3238          Rewrite_Ins       => False,
3239          Analyzed          => False,
3240          Comes_From_Source => False,
3241          Error_Posted      => False,
3242          Flag4             => False,
3243
3244          Flag5             => False,
3245          Flag6             => False,
3246          Flag7             => False,
3247          Flag8             => False,
3248          Flag9             => False,
3249          Flag10            => False,
3250          Flag11            => False,
3251          Flag12            => False,
3252
3253          Flag13            => False,
3254          Flag14            => False,
3255          Flag15            => False,
3256          Flag16            => False,
3257          Flag17            => False,
3258          Flag18            => False,
3259
3260          Nkind             => E_To_N (E_Void),
3261
3262          Field6            => Empty_List_Or_Node,
3263          Field7            => Empty_List_Or_Node,
3264          Field8            => Empty_List_Or_Node,
3265          Field9            => Empty_List_Or_Node,
3266          Field10           => Empty_List_Or_Node,
3267          Field11           => Empty_List_Or_Node,
3268          Field12           => Empty_List_Or_Node);
3269
3270       --  The following defines the extendable array used for the nodes table
3271       --  Nodes with extensions use five consecutive entries in the array
3272
3273       package Nodes is new Table.Table (
3274         Table_Component_Type => Node_Record,
3275         Table_Index_Type     => Node_Id'Base,
3276         Table_Low_Bound      => First_Node_Id,
3277         Table_Initial        => Alloc.Nodes_Initial,
3278         Table_Increment      => Alloc.Nodes_Increment,
3279         Table_Name           => "Nodes");
3280
3281    end Atree_Private_Part;
3282
3283 end Atree;