gcc/ada/sprint.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                               S P R I N T                                --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 1992-2021, 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.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT; see file COPYING3.  If not, go to --
  19 -- http://www.gnu.org/licenses for a complete copy of the license.          --
  20 --                                                                          --
  21 -- GNAT was originally developed  by the GNAT team at  New York University. --
  22 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  23 --                                                                          --
  24 ------------------------------------------------------------------------------
  25
  26 with Aspects;        use Aspects;
  27 with Atree;          use Atree;
  28 with Casing;         use Casing;
  29 with Csets;          use Csets;
  30 with Debug;          use Debug;
  31 with Einfo;          use Einfo;
  32 with Einfo.Entities; use Einfo.Entities;
  33 with Einfo.Utils;    use Einfo.Utils;
  34 with Lib;            use Lib;
  35 with Namet;          use Namet;
  36 with Nlists;         use Nlists;
  37 with Opt;            use Opt;
  38 with Output;         use Output;
  39 with Rtsfind;        use Rtsfind;
  40 with Sem_Eval;       use Sem_Eval;
  41 with Sem_Util;       use Sem_Util;
  42 with Sinfo;          use Sinfo;
  43 with Sinfo.Nodes;    use Sinfo.Nodes;
  44 with Sinfo.Utils;    use Sinfo.Utils;
  45 with Sinput;         use Sinput;
  46 with Sinput.D;       use Sinput.D;
  47 with Snames;         use Snames;
  48 with Stand;          use Stand;
  49 with Stringt;        use Stringt;
  50 with Uintp;          use Uintp;
  51 with Uname;          use Uname;
  52 with Urealp;         use Urealp;
  53
  54 package body Sprint is
  55    Current_Source_File : Source_File_Index;
  56    --  Index of source file whose generated code is being dumped
  57
  58    Dump_Node : Node_Id := Empty;
  59    --  This is set to the current node, used for printing line numbers. In
  60    --  Debug_Generated_Code mode, Dump_Node is set to the current node
  61    --  requiring Sloc fixup, until Set_Debug_Sloc is called to set the proper
  62    --  value. The call clears it back to Empty.
  63
  64    First_Debug_Sloc : Source_Ptr;
  65    --  Sloc of first byte of the current output file if we are generating a
  66    --  source debug file.
  67
  68    Debug_Sloc : Source_Ptr;
  69    --  Sloc of first byte of line currently being written if we are
  70    --  generating a source debug file.
  71
  72    Dump_Original_Only : Boolean;
  73    --  Set True if the -gnatdo (dump original tree) flag is set
  74
  75    Dump_Generated_Only : Boolean;
  76    --  Set True if the -gnatdG (dump generated tree) debug flag is set
  77    --  or for Print_Generated_Code (-gnatG) or Dump_Generated_Code (-gnatD).
  78
  79    Dump_Freeze_Null : Boolean;
  80    --  Set True if empty freeze nodes and non-source null statements output.
  81    --  Note that freeze nodes containing freeze actions are always output,
  82    --  as are freeze nodes for itypes, which in general have the effect of
  83    --  causing elaboration of the itype.
  84
  85    Freeze_Indent : Int := 0;
  86    --  Keep track of freeze indent level (controls output of blank lines before
  87    --  procedures within expression freeze actions). Relevant only if we are
  88    --  not in Dump_Source_Text mode, since in Dump_Source_Text mode we don't
  89    --  output these blank lines in any case.
  90
  91    Indent : Int := 0;
  92    --  Number of columns for current line output indentation
  93
  94    Indent_Annull_Flag : Boolean := False;
  95    --  Set True if subsequent Write_Indent call to be ignored, gets reset
  96    --  by this call, so it is only active to suppress a single indent call.
  97
  98    Last_Line_Printed : Physical_Line_Number;
  99    --  This keeps track of the physical line number of the last source line
 100    --  that has been output. The value is only valid in Dump_Source_Text mode.
 101
 102    -------------------------------
 103    -- Operator Precedence Table --
 104    -------------------------------
 105
 106    --  This table is used to decide whether a subexpression needs to be
 107    --  parenthesized. The rule is that if an operand of an operator (which
 108    --  for this purpose includes AND THEN and OR ELSE) is itself an operator
 109    --  with a lower precedence than the operator (or equal precedence if
 110    --  appearing as the right operand), then parentheses are required.
 111
 112    Op_Prec : constant array (N_Subexpr) of Short_Short_Integer :=
 113                (N_Op_And          => 1,
 114                 N_Op_Or           => 1,
 115                 N_Op_Xor          => 1,
 116                 N_And_Then        => 1,
 117                 N_Or_Else         => 1,
 118
 119                 N_In              => 2,
 120                 N_Not_In          => 2,
 121                 N_Op_Eq           => 2,
 122                 N_Op_Ge           => 2,
 123                 N_Op_Gt           => 2,
 124                 N_Op_Le           => 2,
 125                 N_Op_Lt           => 2,
 126                 N_Op_Ne           => 2,
 127
 128                 N_Op_Add          => 3,
 129                 N_Op_Concat       => 3,
 130                 N_Op_Subtract     => 3,
 131                 N_Op_Plus         => 3,
 132                 N_Op_Minus        => 3,
 133
 134                 N_Op_Divide       => 4,
 135                 N_Op_Mod          => 4,
 136                 N_Op_Rem          => 4,
 137                 N_Op_Multiply     => 4,
 138
 139                 N_Op_Expon        => 5,
 140                 N_Op_Abs          => 5,
 141                 N_Op_Not          => 5,
 142
 143                 others            => 6);
 144
 145    procedure Sprint_Left_Opnd (N : Node_Id);
 146    --  Print left operand of operator, parenthesizing if necessary
 147
 148    procedure Sprint_Right_Opnd (N : Node_Id);
 149    --  Print right operand of operator, parenthesizing if necessary
 150
 151    -----------------------
 152    -- Local Subprograms --
 153    -----------------------
 154
 155    procedure Col_Check (N : Nat);
 156    --  Check that at least N characters remain on current line, and if not,
 157    --  then start an extra line with two characters extra indentation for
 158    --  continuing text on the next line.
 159
 160    procedure Extra_Blank_Line;
 161    --  In some situations we write extra blank lines to separate the generated
 162    --  code to make it more readable. However, these extra blank lines are not
 163    --  generated in Dump_Source_Text mode, since there the source text lines
 164    --  output with preceding blank lines are quite sufficient as separators.
 165    --  This procedure writes a blank line if Dump_Source_Text is False.
 166
 167    procedure Indent_Annull;
 168    --  Causes following call to Write_Indent to be ignored. This is used when
 169    --  a higher level node wants to stop a lower level node from starting a
 170    --  new line, when it would otherwise be inclined to do so (e.g. the case
 171    --  of an accept statement called from an accept alternative with a guard)
 172
 173    procedure Indent_Begin;
 174    --  Increase indentation level
 175
 176    procedure Indent_End;
 177    --  Decrease indentation level
 178
 179    procedure Print_Debug_Line (S : String);
 180    --  Used to print output lines in Debug_Generated_Code mode (this is used
 181    --  as the argument for a call to Set_Special_Output in package Output).
 182
 183    procedure Set_Debug_Sloc;
 184    --  If Dump_Node is non-empty, this routine sets the appropriate value
 185    --  in its Sloc field, from the current location in the debug source file
 186    --  that is currently being written.
 187
 188    procedure Sprint_And_List (List : List_Id);
 189    --  Print the given list with items separated by vertical "and"
 190
 191    procedure Sprint_Aspect_Specifications
 192      (Node      : Node_Id;
 193       Semicolon : Boolean);
 194    --  Node is a declaration node that has aspect specifications (Has_Aspects
 195    --  flag set True). It outputs the aspect specifications. For the case
 196    --  of Semicolon = True, it is called after outputting the terminating
 197    --  semicolon for the related node. The effect is to remove the semicolon
 198    --  and print the aspect specifications followed by a terminating semicolon.
 199    --  For the case of Semicolon False, no semicolon is removed or output, and
 200    --  all the aspects are printed on a single line.
 201
 202    procedure Sprint_Bar_List (List : List_Id);
 203    --  Print the given list with items separated by vertical bars
 204
 205    procedure Sprint_End_Label
 206      (Node    : Node_Id;
 207       Default : Node_Id);
 208    --  Print the end label for a Handled_Sequence_Of_Statements in a body.
 209    --  If there is no end label, use the defining identifier of the enclosing
 210    --  construct. If the end label is present, treat it as a reference to the
 211    --  defining entity of the construct: this guarantees that it carries the
 212    --  proper sloc information for debugging purposes.
 213
 214    procedure Sprint_Node_Actual (Node : Node_Id);
 215    --  This routine prints its node argument. It is a lower level routine than
 216    --  Sprint_Node, in that it does not bother about rewritten trees.
 217
 218    procedure Sprint_Node_Sloc (Node : Node_Id);
 219    --  Like Sprint_Node, but in addition, in Debug_Generated_Code mode,
 220    --  sets the Sloc of the current debug node to be a copy of the Sloc
 221    --  of the sprinted node Node. Note that this is done after printing
 222    --  Node, so that the Sloc is the proper updated value for the debug file.
 223
 224    procedure Update_Itype (Node : Node_Id);
 225    --  Update the Sloc of an itype that is not attached to the tree, when
 226    --  debugging expanded code. This routine is called from nodes whose
 227    --  type can be an Itype, such as defining_identifiers that may be of
 228    --  an anonymous access type, or ranges in slices.
 229
 230    procedure Write_Char_Sloc (C : Character);
 231    --  Like Write_Char, except that if C is non-blank, Set_Debug_Sloc is
 232    --  called to ensure that the current node has a proper Sloc set.
 233
 234    procedure Write_Condition_And_Reason (Node : Node_Id);
 235    --  Write Condition and Reason codes of Raise_xxx_Error node
 236
 237    procedure Write_Corresponding_Source (S : String);
 238    --  If S is a string with a single keyword (possibly followed by a space),
 239    --  and if the next non-comment non-blank source line matches this keyword,
 240    --  then output all source lines up to this matching line.
 241
 242    procedure Write_Discr_Specs (N : Node_Id);
 243    --  Output discriminant specification for node, which is any of the type
 244    --  declarations that can have discriminants.
 245
 246    procedure Write_Ekind (E : Entity_Id);
 247    --  Write the String corresponding to the Ekind without "E_"
 248
 249    procedure Write_Id (N : Node_Id);
 250    --  N is a node with a Chars field. This procedure writes the name that
 251    --  will be used in the generated code associated with the name. For a
 252    --  node with no associated entity, this is simply the Chars field. For
 253    --  the case where there is an entity associated with the node, we print
 254    --  the name associated with the entity (since it may have been encoded).
 255    --  One other special case is that an entity has an active external name
 256    --  (i.e. an external name present with no address clause), then this
 257    --  external name is output. This procedure also deals with outputting
 258    --  declarations of referenced itypes, if not output earlier.
 259
 260    function Write_Identifiers (Node : Node_Id) return Boolean;
 261    --  Handle node where the grammar has a list of defining identifiers, but
 262    --  the tree has a separate declaration for each identifier. Handles the
 263    --  printing of the defining identifier, and returns True if the type and
 264    --  initialization information is to be printed, False if it is to be
 265    --  skipped (the latter case happens when printing defining identifiers
 266    --  other than the first in the original tree output case).
 267
 268    procedure Write_Implicit_Def (E : Entity_Id);
 269    pragma Warnings (Off, Write_Implicit_Def);
 270    --  Write the definition of the implicit type E according to its Ekind
 271    --  For now a debugging procedure, but might be used in the future.
 272
 273    procedure Write_Indent;
 274    --  Start a new line and write indentation spacing
 275
 276    function Write_Indent_Identifiers (Node : Node_Id) return Boolean;
 277    --  Like Write_Identifiers except that each new printed declaration
 278    --  is at the start of a new line.
 279
 280    function Write_Indent_Identifiers_Sloc (Node : Node_Id) return Boolean;
 281    --  Like Write_Indent_Identifiers except that in Debug_Generated_Code
 282    --  mode, the Sloc of the current debug node is set to point to the
 283    --  first output identifier.
 284
 285    procedure Write_Indent_Str (S : String);
 286    --  Start a new line and write indent spacing followed by given string
 287
 288    procedure Write_Indent_Str_Sloc (S : String);
 289    --  Like Write_Indent_Str, but in addition, in Debug_Generated_Code mode,
 290    --  the Sloc of the current node is set to the first non-blank character
 291    --  in the string S.
 292
 293    procedure Write_Itype (Typ : Entity_Id);
 294    --  If Typ is an Itype that has not been written yet, write it. If Typ is
 295    --  any other kind of entity or tree node, the call is ignored.
 296
 297    procedure Write_Name_With_Col_Check (N : Name_Id);
 298    --  Write name (using Write_Name) with initial column check, and possible
 299    --  initial Write_Indent (to get new line) if current line is too full.
 300
 301    procedure Write_Name_With_Col_Check_Sloc (N : Name_Id);
 302    --  Like Write_Name_With_Col_Check but in addition, in Debug_Generated_Code
 303    --  mode, sets Sloc of current debug node to first character of name.
 304
 305    procedure Write_Operator (N : Node_Id; S : String);
 306    --  Like Write_Str_Sloc, used for operators, encloses the string in
 307    --  characters {} if the Do_Overflow flag is set on the node N.
 308
 309    procedure Write_Param_Specs (N : Node_Id);
 310    --  Output parameter specifications for node N (which is a subprogram, or
 311    --  entry or entry family or access-subprogram-definition, all of which
 312    --  have a Parameter_Specificatioons field).
 313
 314    procedure Write_Rewrite_Str (S : String);
 315    --  Writes out a string (typically containing <<< or >>>}) for a node
 316    --  created by rewriting the tree. Suppressed if we are outputting the
 317    --  generated code only, since in this case we don't specially mark nodes
 318    --  created by rewriting).
 319
 320    procedure Write_Source_Line (L : Physical_Line_Number);
 321    --  If writing of interspersed source lines is enabled, then write the given
 322    --  line from the source file, preceded by Eol, then an extra blank line if
 323    --  the line has at least one blank, is not a comment and is not line one,
 324    --  then "--" and the line number followed by period followed by text of the
 325    --  source line (without terminating Eol). If interspersed source line
 326    --  output not enabled, then the call has no effect.
 327
 328    procedure Write_Source_Lines (L : Physical_Line_Number);
 329    --  If writing of interspersed source lines is enabled, then writes source
 330    --  lines Last_Line_Printed + 1 .. L, and updates Last_Line_Printed. If
 331    --  interspersed source line output not enabled, then call has no effect.
 332
 333    procedure Write_Str_Sloc (S : String);
 334    --  Like Write_Str, but sets debug Sloc of current debug node to first
 335    --  non-blank character if a current debug node is active.
 336
 337    procedure Write_Str_With_Col_Check (S : String);
 338    --  Write string (using Write_Str) with initial column check, and possible
 339    --  initial Write_Indent (to get new line) if current line is too full.
 340
 341    procedure Write_Str_With_Col_Check_Sloc (S : String);
 342    --  Like Write_Str_With_Col_Check, but sets debug Sloc of current debug
 343    --  node to first non-blank character if a current debug node is active.
 344
 345    procedure Write_Subprogram_Name (N : Node_Id);
 346    --  N is the Name field of a function call or procedure statement call.
 347    --  The effect of the call is to output the name, preceded by a $ if the
 348    --  call is identified as an implicit call to a run time routine.
 349
 350    procedure Write_Uint_With_Col_Check (U : Uint; Format : UI_Format);
 351    --  Write Uint (using UI_Write) with initial column check, and possible
 352    --  initial Write_Indent (to get new line) if current line is too full.
 353    --  The format parameter determines the output format (see UI_Write).
 354
 355    procedure Write_Uint_With_Col_Check_Sloc (U : Uint; Format : UI_Format);
 356    --  Write Uint (using UI_Write) with initial column check, and possible
 357    --  initial Write_Indent (to get new line) if current line is too full.
 358    --  The format parameter determines the output format (see UI_Write).
 359    --  In addition, in Debug_Generated_Code mode, sets the current node
 360    --  Sloc to the first character of the output value.
 361
 362    procedure Write_Ureal_With_Col_Check_Sloc (U : Ureal);
 363    --  Write Ureal (using same output format as UR_Write) with column checks
 364    --  and a possible initial Write_Indent (to get new line) if current line
 365    --  is too full. In addition, in Debug_Generated_Code mode, sets the
 366    --  current node Sloc to the first character of the output value.
 367
 368    ---------------
 369    -- Col_Check --
 370    ---------------
 371
 372    procedure Col_Check (N : Nat) is
 373    begin
 374       if N + Column > Sprint_Line_Limit then
 375          Write_Indent_Str ("  ");
 376       end if;
 377    end Col_Check;
 378
 379    ----------------------
 380    -- Extra_Blank_Line --
 381    ----------------------
 382
 383    procedure Extra_Blank_Line is
 384    begin
 385       if not Dump_Source_Text then
 386          Write_Indent;
 387       end if;
 388    end Extra_Blank_Line;
 389
 390    -------------------
 391    -- Indent_Annull --
 392    -------------------
 393
 394    procedure Indent_Annull is
 395    begin
 396       Indent_Annull_Flag := True;
 397    end Indent_Annull;
 398
 399    ------------------
 400    -- Indent_Begin --
 401    ------------------
 402
 403    procedure Indent_Begin is
 404    begin
 405       Indent := Indent + 3;
 406    end Indent_Begin;
 407
 408    ----------------
 409    -- Indent_End --
 410    ----------------
 411
 412    procedure Indent_End is
 413    begin
 414       Indent := Indent - 3;
 415    end Indent_End;
 416
 417    --------
 418    -- pg --
 419    --------
 420
 421    procedure pg (Arg : Union_Id) is
 422    begin
 423       Dump_Generated_Only := True;
 424       Dump_Original_Only  := False;
 425       Dump_Freeze_Null    := True;
 426       Current_Source_File := No_Source_File;
 427       Push_Output;
 428       Set_Standard_Output;
 429
 430       if Arg in List_Range then
 431          Sprint_Node_List (List_Id (Arg), New_Lines => True);
 432
 433       elsif Arg in Node_Range then
 434          Sprint_Node (Node_Id (Arg));
 435
 436       else
 437          null;
 438       end if;
 439
 440       Write_Eol;
 441       Pop_Output;
 442    end pg;
 443
 444    --------
 445    -- po --
 446    --------
 447
 448    procedure po (Arg : Union_Id) is
 449    begin
 450       Dump_Generated_Only := False;
 451       Dump_Original_Only  := True;
 452       Dump_Freeze_Null    := False;
 453       Current_Source_File := No_Source_File;
 454       Push_Output;
 455       Set_Standard_Output;
 456
 457       if Arg in List_Range then
 458          Sprint_Node_List (List_Id (Arg), New_Lines => True);
 459
 460       elsif Arg in Node_Range then
 461          Sprint_Node (Node_Id (Arg));
 462
 463       else
 464          null;
 465       end if;
 466
 467       Write_Eol;
 468       Pop_Output;
 469    end po;
 470
 471    ----------------------
 472    -- Print_Debug_Line --
 473    ----------------------
 474
 475    procedure Print_Debug_Line (S : String) is
 476    begin
 477       Write_Debug_Line (S, Debug_Sloc);
 478    end Print_Debug_Line;
 479
 480    --------
 481    -- ps --
 482    --------
 483
 484    procedure ps (Arg : Union_Id) is
 485    begin
 486       Dump_Generated_Only := False;
 487       Dump_Original_Only  := False;
 488       Dump_Freeze_Null    := False;
 489       Current_Source_File := No_Source_File;
 490       Push_Output;
 491       Set_Standard_Output;
 492
 493       if Arg in List_Range then
 494          Sprint_Node_List (List_Id (Arg), New_Lines => True);
 495
 496       elsif Arg in Node_Range then
 497          Sprint_Node (Node_Id (Arg));
 498
 499       else
 500          null;
 501       end if;
 502
 503       Write_Eol;
 504       Pop_Output;
 505    end ps;
 506
 507    --------------------
 508    -- Set_Debug_Sloc --
 509    --------------------
 510
 511    procedure Set_Debug_Sloc is
 512    begin
 513       if Debug_Generated_Code and then Present (Dump_Node) then
 514          declare
 515             Loc : constant Source_Ptr := Sloc (Dump_Node);
 516
 517          begin
 518             --  Do not change the location of nodes defined in package Standard
 519             --  and nodes of pragmas scanned by Targparm.
 520
 521             if Loc <= Standard_Location then
 522                null;
 523
 524             --  Update the location of a node which is part of the current .dg
 525             --  output. This situation occurs in comma separated parameter
 526             --  declarations since each parameter references the same parameter
 527             --  type node (ie. obj1, obj2 : <param-type>).
 528
 529             --  Note: This case is needed here since we cannot use the routine
 530             --  In_Extended_Main_Code_Unit with nodes whose location is a .dg
 531             --  file.
 532
 533             elsif Loc >= First_Debug_Sloc then
 534                Set_Sloc (Dump_Node, Debug_Sloc + Source_Ptr (Column - 1));
 535
 536             --  Do not change the location of nodes which are not part of the
 537             --  generated code
 538
 539             elsif not In_Extended_Main_Code_Unit (Loc) then
 540                null;
 541
 542             else
 543                Set_Sloc (Dump_Node, Debug_Sloc + Source_Ptr (Column - 1));
 544             end if;
 545          end;
 546
 547          --  We do not know the actual end location in the generated code and
 548          --  it could be much closer than in the source code, so play safe.
 549
 550          if Nkind (Dump_Node) in N_Case_Statement | N_If_Statement then
 551             Set_End_Location (Dump_Node, Debug_Sloc + Source_Ptr (Column - 1));
 552          end if;
 553
 554          Dump_Node := Empty;
 555       end if;
 556    end Set_Debug_Sloc;
 557
 558    -----------------
 559    -- Source_Dump --
 560    -----------------
 561
 562    procedure Source_Dump is
 563
 564       procedure Underline;
 565       --  Put underline under string we just printed
 566
 567       ---------------
 568       -- Underline --
 569       ---------------
 570
 571       procedure Underline is
 572          Col : constant Int := Column;
 573
 574       begin
 575          Write_Eol;
 576
 577          while Col > Column loop
 578             Write_Char ('-');
 579          end loop;
 580
 581          Write_Eol;
 582       end Underline;
 583
 584    --  Start of processing for Source_Dump
 585
 586    begin
 587       Dump_Generated_Only := Debug_Flag_G or
 588                              Print_Generated_Code or
 589                              Debug_Generated_Code;
 590       Dump_Original_Only  := Debug_Flag_O;
 591       Dump_Freeze_Null    := Debug_Flag_S or Debug_Flag_G;
 592
 593       --  Note that we turn off the tree dump flags immediately, before
 594       --  starting the dump. This avoids generating two copies of the dump
 595       --  if an abort occurs after printing the dump, and more importantly,
 596       --  avoids an infinite loop if an abort occurs during the dump.
 597
 598       if Debug_Flag_Z then
 599          Current_Source_File := No_Source_File;
 600          Debug_Flag_Z := False;
 601          Write_Eol;
 602          Write_Eol;
 603          Write_Str ("Source recreated from tree of Standard (spec)");
 604          Underline;
 605          Sprint_Node (Standard_Package_Node);
 606          Write_Eol;
 607          Write_Eol;
 608       end if;
 609
 610       if Debug_Flag_S or Dump_Generated_Only or Dump_Original_Only then
 611          Debug_Flag_G := False;
 612          Debug_Flag_O := False;
 613          Debug_Flag_S := False;
 614          First_Debug_Sloc := No_Location;
 615
 616          --  Dump requested units
 617
 618          for U in Main_Unit .. Last_Unit loop
 619             Current_Source_File := Source_Index (U);
 620
 621             --  Dump all units if -gnatdf set, otherwise dump only the source
 622             --  files that are in the extended main source. Note that, if we
 623             --  are generating debug files, generating that of the main unit
 624             --  has an effect on the outcome of In_Extended_Main_Source_Unit
 625             --  because slocs are rewritten, so we also test for equality of
 626             --  Cunit_Entity to work around this effect.
 627
 628             if Debug_Flag_F
 629               or else In_Extended_Main_Source_Unit (Cunit_Entity (U))
 630               or else Cunit_Entity (U) = Cunit_Entity (Main_Unit)
 631             then
 632                --  If we are generating debug files, setup to write them
 633
 634                if Debug_Generated_Code then
 635                   Set_Special_Output (Print_Debug_Line'Access);
 636                   Create_Debug_Source (Source_Index (U), Debug_Sloc);
 637                   First_Debug_Sloc := Debug_Sloc;
 638                   Write_Source_Line (1);
 639                   Last_Line_Printed := 1;
 640
 641                   --  If this unit has the same entity as the main unit, for
 642                   --  example is the spec of a stand-alone instantiation of
 643                   --  a package and the main unit is the body, its debug file
 644                   --  will also be the same. Therefore, we need to print again
 645                   --  the main unit to have both units in the debug file.
 646
 647                   if U /= Main_Unit
 648                     and then Cunit_Entity (U) = Cunit_Entity (Main_Unit)
 649                   then
 650                      Sprint_Node (Cunit (Main_Unit));
 651                      Write_Eol;
 652                   end if;
 653
 654                   Sprint_Node (Cunit (U));
 655                   Write_Source_Lines (Last_Source_Line (Current_Source_File));
 656                   Write_Eol;
 657                   Close_Debug_Source;
 658                   Cancel_Special_Output;
 659
 660                --  Normal output to standard output file
 661
 662                else
 663                   Write_Str ("Source recreated from tree for ");
 664                   Write_Unit_Name (Unit_Name (U));
 665                   Underline;
 666                   Write_Source_Line (1);
 667                   Last_Line_Printed := 1;
 668                   Sprint_Node (Cunit (U));
 669                   Write_Source_Lines (Last_Source_Line (Current_Source_File));
 670                   Write_Eol;
 671                   Write_Eol;
 672                end if;
 673             end if;
 674          end loop;
 675       end if;
 676    end Source_Dump;
 677
 678    ---------------------
 679    -- Sprint_And_List --
 680    ---------------------
 681
 682    procedure Sprint_And_List (List : List_Id) is
 683       Node : Node_Id;
 684    begin
 685       if Is_Non_Empty_List (List) then
 686          Node := First (List);
 687          loop
 688             Sprint_Node (Node);
 689             Next (Node);
 690             exit when Node = Empty;
 691             Write_Str (" and ");
 692          end loop;
 693       end if;
 694    end Sprint_And_List;
 695
 696    ----------------------------------
 697    -- Sprint_Aspect_Specifications --
 698    ----------------------------------
 699
 700    procedure Sprint_Aspect_Specifications
 701      (Node      : Node_Id;
 702       Semicolon : Boolean)
 703    is
 704       AS : constant List_Id := Aspect_Specifications (Node);
 705       A  : Node_Id;
 706
 707    begin
 708       if Semicolon then
 709          Write_Erase_Char (';');
 710          Indent := Indent + 2;
 711          Write_Indent;
 712          Write_Str ("with ");
 713          Indent := Indent + 5;
 714
 715       else
 716          Write_Str (" with ");
 717       end if;
 718
 719       A := First (AS);
 720       loop
 721          Sprint_Node (Identifier (A));
 722
 723          if Class_Present (A) then
 724             Write_Str ("'Class");
 725          end if;
 726
 727          if Present (Expression (A)) then
 728             Write_Str (" => ");
 729             Sprint_Node (Expression (A));
 730          end if;
 731
 732          Next (A);
 733
 734          exit when No (A);
 735          Write_Char (',');
 736
 737          if Semicolon then
 738             Write_Indent;
 739          end if;
 740       end loop;
 741
 742       if Semicolon then
 743          Indent := Indent - 7;
 744          Write_Char (';');
 745       end if;
 746    end Sprint_Aspect_Specifications;
 747
 748    ---------------------
 749    -- Sprint_Bar_List --
 750    ---------------------
 751
 752    procedure Sprint_Bar_List (List : List_Id) is
 753       Node : Node_Id;
 754    begin
 755       if Is_Non_Empty_List (List) then
 756          Node := First (List);
 757          loop
 758             Sprint_Node (Node);
 759             Next (Node);
 760             exit when Node = Empty;
 761             Write_Str (" | ");
 762          end loop;
 763       end if;
 764    end Sprint_Bar_List;
 765
 766    ----------------------
 767    -- Sprint_End_Label --
 768    ----------------------
 769
 770    procedure Sprint_End_Label
 771      (Node    : Node_Id;
 772       Default : Node_Id)
 773    is
 774    begin
 775       if Present (Node)
 776         and then Present (End_Label (Node))
 777         and then Is_Entity_Name (End_Label (Node))
 778       then
 779          Set_Entity (End_Label (Node), Default);
 780
 781          --  For a function whose name is an operator, use the qualified name
 782          --  created for the defining entity.
 783
 784          if Nkind (End_Label (Node)) = N_Operator_Symbol then
 785             Set_Chars (End_Label (Node), Chars (Default));
 786          end if;
 787
 788          Sprint_Node (End_Label (Node));
 789       else
 790          Sprint_Node (Default);
 791       end if;
 792    end Sprint_End_Label;
 793
 794    -----------------------
 795    -- Sprint_Comma_List --
 796    -----------------------
 797
 798    procedure Sprint_Comma_List (List : List_Id) is
 799       Node : Node_Id;
 800
 801    begin
 802       if Is_Non_Empty_List (List) then
 803          Node := First (List);
 804          loop
 805             Sprint_Node (Node);
 806             Next (Node);
 807             exit when Node = Empty;
 808
 809             if not Is_Rewrite_Insertion (Node)
 810               or else not Dump_Original_Only
 811             then
 812                Write_Str (", ");
 813             end if;
 814          end loop;
 815       end if;
 816    end Sprint_Comma_List;
 817
 818    --------------------------
 819    -- Sprint_Indented_List --
 820    --------------------------
 821
 822    procedure Sprint_Indented_List (List : List_Id) is
 823    begin
 824       Indent_Begin;
 825       Sprint_Node_List (List);
 826       Indent_End;
 827    end Sprint_Indented_List;
 828
 829    ---------------------
 830    -- Sprint_Left_Opnd --
 831    ---------------------
 832
 833    procedure Sprint_Left_Opnd (N : Node_Id) is
 834       Opnd : constant Node_Id := Left_Opnd (N);
 835
 836    begin
 837       if Paren_Count (Opnd) /= 0
 838         or else Op_Prec (Nkind (Opnd)) >= Op_Prec (Nkind (N))
 839       then
 840          Sprint_Node (Opnd);
 841
 842       else
 843          Write_Char ('(');
 844          Sprint_Node (Opnd);
 845          Write_Char (')');
 846       end if;
 847    end Sprint_Left_Opnd;
 848
 849    -----------------
 850    -- Sprint_Node --
 851    -----------------
 852
 853    procedure Sprint_Node (Node : Node_Id) is
 854    begin
 855       if Is_Rewrite_Insertion (Node) then
 856          if not Dump_Original_Only then
 857
 858             --  For special cases of nodes that always output <<< >>>
 859             --  do not duplicate the output at this point.
 860
 861             if Nkind (Node) = N_Freeze_Entity
 862               or else Nkind (Node) = N_Freeze_Generic_Entity
 863               or else Nkind (Node) = N_Implicit_Label_Declaration
 864             then
 865                Sprint_Node_Actual (Node);
 866
 867             --  Normal case where <<< >>> may be required
 868
 869             else
 870                Write_Rewrite_Str ("<<<");
 871                Sprint_Node_Actual (Node);
 872                Write_Rewrite_Str (">>>");
 873             end if;
 874          end if;
 875
 876       elsif Is_Rewrite_Substitution (Node) then
 877
 878          --  Case of dump generated only
 879
 880          if Dump_Generated_Only then
 881             Sprint_Node_Actual (Node);
 882
 883          --  Case of dump original only
 884
 885          elsif Dump_Original_Only then
 886             Sprint_Node_Actual (Original_Node (Node));
 887
 888          --  Case of both being dumped
 889
 890          else
 891             Sprint_Node_Actual (Original_Node (Node));
 892             Write_Rewrite_Str ("<<<");
 893             Sprint_Node_Actual (Node);
 894             Write_Rewrite_Str (">>>");
 895          end if;
 896
 897       else
 898          Sprint_Node_Actual (Node);
 899       end if;
 900    end Sprint_Node;
 901
 902    ------------------------
 903    -- Sprint_Node_Actual --
 904    ------------------------
 905
 906    procedure Sprint_Node_Actual (Node : Node_Id) is
 907       Save_Dump_Node : constant Node_Id := Dump_Node;
 908
 909    begin
 910       if Node = Empty then
 911          return;
 912       end if;
 913
 914       for J in 1 .. Paren_Count (Node) loop
 915          Write_Str_With_Col_Check ("(");
 916       end loop;
 917
 918       --  Setup current dump node
 919
 920       Dump_Node := Node;
 921
 922       if Nkind (Node) in N_Subexpr
 923         and then Do_Range_Check (Node)
 924       then
 925          Write_Str_With_Col_Check ("{");
 926       end if;
 927
 928       --  Select print circuit based on node kind
 929
 930       case Nkind (Node) is
 931          when N_Abort_Statement =>
 932             Write_Indent_Str_Sloc ("abort ");
 933             Sprint_Comma_List (Names (Node));
 934             Write_Char (';');
 935
 936          when N_Abortable_Part =>
 937             Set_Debug_Sloc;
 938             Write_Str_Sloc ("abort ");
 939             Sprint_Indented_List (Statements (Node));
 940
 941          when N_Abstract_Subprogram_Declaration =>
 942             Write_Indent;
 943             Sprint_Node (Specification (Node));
 944             Write_Str_With_Col_Check (" is ");
 945             Write_Str_Sloc ("abstract;");
 946
 947          when N_Accept_Alternative =>
 948             Sprint_Node_List (Pragmas_Before (Node));
 949
 950             if Present (Condition (Node)) then
 951                Write_Indent_Str ("when ");
 952                Sprint_Node (Condition (Node));
 953                Write_Str (" => ");
 954                Indent_Annull;
 955             end if;
 956
 957             Sprint_Node_Sloc (Accept_Statement (Node));
 958             Sprint_Node_List (Statements (Node));
 959
 960          when N_Accept_Statement =>
 961             Write_Indent_Str_Sloc ("accept ");
 962             Write_Id (Entry_Direct_Name (Node));
 963
 964             if Present (Entry_Index (Node)) then
 965                Write_Str_With_Col_Check (" (");
 966                Sprint_Node (Entry_Index (Node));
 967                Write_Char (')');
 968             end if;
 969
 970             Write_Param_Specs (Node);
 971
 972             if Present (Handled_Statement_Sequence (Node)) then
 973                Write_Str_With_Col_Check (" do");
 974                Sprint_Node (Handled_Statement_Sequence (Node));
 975                Write_Indent_Str ("end ");
 976                Write_Id (Entry_Direct_Name (Node));
 977             end if;
 978
 979             Write_Char (';');
 980
 981          when N_Access_Definition =>
 982
 983             --  Ada 2005 (AI-254)
 984
 985             if Present (Access_To_Subprogram_Definition (Node)) then
 986                Sprint_Node (Access_To_Subprogram_Definition (Node));
 987             else
 988                --  Ada 2005 (AI-231)
 989
 990                if Null_Exclusion_Present (Node) then
 991                   Write_Str ("not null ");
 992                end if;
 993
 994                Write_Str_With_Col_Check_Sloc ("access ");
 995
 996                if All_Present (Node) then
 997                   Write_Str ("all ");
 998                elsif Constant_Present (Node) then
 999                   Write_Str ("constant ");
1000                end if;
1001
1002                Sprint_Node (Subtype_Mark (Node));
1003             end if;
1004
1005          when N_Access_Function_Definition =>
1006
1007             --  Ada 2005 (AI-231)
1008
1009             if Null_Exclusion_Present (Node) then
1010                Write_Str ("not null ");
1011             end if;
1012
1013             Write_Str_With_Col_Check_Sloc ("access ");
1014
1015             if Protected_Present (Node) then
1016                Write_Str_With_Col_Check ("protected ");
1017             end if;
1018
1019             Write_Str_With_Col_Check ("function");
1020             Write_Param_Specs (Node);
1021             Write_Str_With_Col_Check (" return ");
1022             Sprint_Node (Result_Definition (Node));
1023
1024          when N_Access_Procedure_Definition =>
1025
1026             --  Ada 2005 (AI-231)
1027
1028             if Null_Exclusion_Present (Node) then
1029                Write_Str ("not null ");
1030             end if;
1031
1032             Write_Str_With_Col_Check_Sloc ("access ");
1033
1034             if Protected_Present (Node) then
1035                Write_Str_With_Col_Check ("protected ");
1036             end if;
1037
1038             Write_Str_With_Col_Check ("procedure");
1039             Write_Param_Specs (Node);
1040
1041          when N_Access_To_Object_Definition =>
1042             Write_Str_With_Col_Check_Sloc ("access ");
1043
1044             if All_Present (Node) then
1045                Write_Str_With_Col_Check ("all ");
1046             elsif Constant_Present (Node) then
1047                Write_Str_With_Col_Check ("constant ");
1048             end if;
1049
1050             --  Ada 2005 (AI-231)
1051
1052             if Null_Exclusion_Present (Node) then
1053                Write_Str ("not null ");
1054             end if;
1055
1056             Sprint_Node (Subtype_Indication (Node));
1057
1058          when N_Aggregate =>
1059             if Null_Record_Present (Node) then
1060                Write_Str_With_Col_Check_Sloc ("(null record)");
1061
1062             else
1063                Write_Str_With_Col_Check_Sloc ("(");
1064
1065                if Present (Expressions (Node)) then
1066                   Sprint_Comma_List (Expressions (Node));
1067
1068                   if not Is_Empty_List (Component_Associations (Node)) then
1069                      Write_Str (", ");
1070                   end if;
1071                end if;
1072
1073                if not Is_Empty_List (Component_Associations (Node)) then
1074                   Indent_Begin;
1075
1076                   declare
1077                      Nd : Node_Id;
1078
1079                   begin
1080                      Nd := First (Component_Associations (Node));
1081
1082                      loop
1083                         Write_Indent;
1084                         Sprint_Node (Nd);
1085                         Next (Nd);
1086                         exit when No (Nd);
1087
1088                         if not Is_Rewrite_Insertion (Nd)
1089                           or else not Dump_Original_Only
1090                         then
1091                            Write_Str (", ");
1092                         end if;
1093                      end loop;
1094                   end;
1095
1096                   Indent_End;
1097                end if;
1098
1099                Write_Char (')');
1100             end if;
1101
1102          when N_Allocator =>
1103             Write_Str_With_Col_Check_Sloc ("new ");
1104
1105             --  Ada 2005 (AI-231)
1106
1107             if Null_Exclusion_Present (Node) then
1108                Write_Str ("not null ");
1109             end if;
1110
1111             Sprint_Node (Expression (Node));
1112
1113             if Present (Storage_Pool (Node)) then
1114                Write_Str_With_Col_Check ("[storage_pool = ");
1115                Sprint_Node (Storage_Pool (Node));
1116                Write_Char (']');
1117             end if;
1118
1119          when N_And_Then =>
1120             Sprint_Left_Opnd (Node);
1121             Write_Str_Sloc (" and then ");
1122             Sprint_Right_Opnd (Node);
1123
1124          --  Note: the following code for N_Aspect_Specification is not
1125          --  normally used, since we deal with aspects as part of a
1126          --  declaration, but it is here in case we deliberately try
1127          --  to print an N_Aspect_Speficiation node (e.g. from GDB).
1128
1129          when N_Aspect_Specification =>
1130             Sprint_Node (Identifier (Node));
1131             Write_Str (" => ");
1132             Sprint_Node (Expression (Node));
1133
1134          when N_Assignment_Statement =>
1135             Write_Indent;
1136             Sprint_Node (Name (Node));
1137             Write_Str_Sloc (" := ");
1138             Sprint_Node (Expression (Node));
1139             Write_Char (';');
1140
1141          when N_Asynchronous_Select =>
1142             Write_Indent_Str_Sloc ("select");
1143             Indent_Begin;
1144             Sprint_Node (Triggering_Alternative (Node));
1145             Indent_End;
1146
1147             --  Note: let the printing of Abortable_Part handle outputting
1148             --  the ABORT keyword, so that the Sloc can be set correctly.
1149
1150             Write_Indent_Str ("then ");
1151             Sprint_Node (Abortable_Part (Node));
1152             Write_Indent_Str ("end select;");
1153
1154          when N_At_Clause =>
1155             Write_Indent_Str_Sloc ("for ");
1156             Write_Id (Identifier (Node));
1157             Write_Str_With_Col_Check (" use at ");
1158             Sprint_Node (Expression (Node));
1159             Write_Char (';');
1160
1161          when N_Attribute_Definition_Clause =>
1162             Write_Indent_Str_Sloc ("for ");
1163             Sprint_Node (Name (Node));
1164             Write_Char (''');
1165             Write_Name_With_Col_Check (Chars (Node));
1166             Write_Str_With_Col_Check (" use ");
1167             Sprint_Node (Expression (Node));
1168             Write_Char (';');
1169
1170          when N_Attribute_Reference =>
1171             if Is_Procedure_Attribute_Name (Attribute_Name (Node)) then
1172                Write_Indent;
1173             end if;
1174
1175             Sprint_Node (Prefix (Node));
1176             Write_Char_Sloc (''');
1177             Write_Name_With_Col_Check (Attribute_Name (Node));
1178             Sprint_Paren_Comma_List (Expressions (Node));
1179
1180             if Is_Procedure_Attribute_Name (Attribute_Name (Node)) then
1181                Write_Char (';');
1182             end if;
1183
1184          when N_Block_Statement =>
1185             Write_Indent;
1186
1187             if Present (Identifier (Node))
1188               and then (not Has_Created_Identifier (Node)
1189                          or else not Dump_Original_Only)
1190             then
1191                Write_Rewrite_Str ("<<<");
1192                Write_Id (Identifier (Node));
1193                Write_Str (" : ");
1194                Write_Rewrite_Str (">>>");
1195             end if;
1196
1197             if Present (Declarations (Node)) then
1198                Write_Str_With_Col_Check_Sloc ("declare");
1199                Sprint_Indented_List (Declarations (Node));
1200                Write_Indent;
1201             end if;
1202
1203             Write_Str_With_Col_Check_Sloc ("begin");
1204             Sprint_Node (Handled_Statement_Sequence (Node));
1205             Write_Indent_Str ("end");
1206
1207             if Present (Identifier (Node))
1208               and then (not Has_Created_Identifier (Node)
1209                           or else not Dump_Original_Only)
1210             then
1211                Write_Rewrite_Str ("<<<");
1212                Write_Char (' ');
1213                Write_Id (Identifier (Node));
1214                Write_Rewrite_Str (">>>");
1215             end if;
1216
1217             Write_Char (';');
1218
1219          when N_Call_Marker =>
1220             null;
1221
1222             --  Enable the following code for debugging purposes only
1223
1224             --  Write_Indent_Str ("#");
1225             --  Write_Id (Target (Node));
1226             --  Write_Char ('#');
1227
1228          when N_Case_Expression =>
1229             declare
1230                Has_Parens : constant Boolean := Paren_Count (Node) > 0;
1231                Alt        : Node_Id;
1232
1233             begin
1234                --  The syntax for case_expression does not include parentheses,
1235                --  but sometimes parentheses are required, so unconditionally
1236                --  generate them here unless already present.
1237
1238                if not Has_Parens then
1239                   Write_Char ('(');
1240                end if;
1241
1242                Write_Str_With_Col_Check_Sloc ("case ");
1243                Sprint_Node (Expression (Node));
1244                Write_Str_With_Col_Check (" is");
1245
1246                Alt := First (Alternatives (Node));
1247                loop
1248                   Sprint_Node (Alt);
1249                   Next (Alt);
1250                   exit when No (Alt);
1251                   Write_Char (',');
1252                end loop;
1253
1254                if not Has_Parens then
1255                   Write_Char (')');
1256                end if;
1257             end;
1258
1259          when N_Case_Expression_Alternative =>
1260             Write_Str_With_Col_Check (" when ");
1261             Sprint_Bar_List (Discrete_Choices (Node));
1262             Write_Str (" => ");
1263             Sprint_Node (Expression (Node));
1264
1265          when N_Case_Statement =>
1266             Write_Indent_Str_Sloc ("case ");
1267             Sprint_Node (Expression (Node));
1268             Write_Str (" is");
1269             Sprint_Indented_List (Alternatives (Node));
1270             Write_Indent_Str ("end case;");
1271
1272          when N_Case_Statement_Alternative =>
1273             Write_Indent_Str_Sloc ("when ");
1274             Sprint_Bar_List (Discrete_Choices (Node));
1275             Write_Str (" => ");
1276             Sprint_Indented_List (Statements (Node));
1277
1278          when N_Character_Literal =>
1279             if Column > Sprint_Line_Limit - 2 then
1280                Write_Indent_Str ("  ");
1281             end if;
1282
1283             Write_Char_Sloc (''');
1284             Write_Char_Code (UI_To_CC (Char_Literal_Value (Node)));
1285             Write_Char (''');
1286
1287          when N_Code_Statement =>
1288             Write_Indent;
1289             Set_Debug_Sloc;
1290             Sprint_Node (Expression (Node));
1291             Write_Char (';');
1292
1293          when N_Compilation_Unit =>
1294             Sprint_Node_List (Context_Items (Node));
1295             Sprint_Opt_Node_List (Declarations (Aux_Decls_Node (Node)));
1296
1297             if Private_Present (Node) then
1298                Write_Indent_Str ("private ");
1299                Indent_Annull;
1300             end if;
1301
1302             Sprint_Node_Sloc (Unit (Node));
1303
1304             if Present (Actions (Aux_Decls_Node (Node)))
1305                  or else
1306                Present (Pragmas_After (Aux_Decls_Node (Node)))
1307             then
1308                Write_Indent;
1309             end if;
1310
1311             Sprint_Opt_Node_List (Actions (Aux_Decls_Node (Node)));
1312             Sprint_Opt_Node_List (Pragmas_After (Aux_Decls_Node (Node)));
1313
1314          when N_Compilation_Unit_Aux =>
1315             null; -- nothing to do, never used, see above
1316
1317          when N_Component_Association =>
1318             Set_Debug_Sloc;
1319             Sprint_Bar_List (Choices (Node));
1320             Write_Str (" => ");
1321
1322             --  Ada 2005 (AI-287): Print the box if present
1323
1324             if Box_Present (Node) then
1325                Write_Str_With_Col_Check ("<>");
1326             else
1327                Sprint_Node (Expression (Node));
1328             end if;
1329
1330          when N_Iterated_Component_Association =>
1331             Set_Debug_Sloc;
1332             Write_Str (" for ");
1333             Write_Id (Defining_Identifier (Node));
1334             Write_Str (" in ");
1335             Sprint_Bar_List (Discrete_Choices (Node));
1336             Write_Str (" => ");
1337             Sprint_Node (Expression (Node));
1338
1339          when N_Iterated_Element_Association =>
1340             Set_Debug_Sloc;
1341             if Present (Iterator_Specification (Node)) then
1342                Sprint_Node (Iterator_Specification (Node));
1343             else
1344                Sprint_Node (Loop_Parameter_Specification (Node));
1345             end if;
1346
1347             if Present (Key_Expression (Node)) then
1348                Write_Str (" use ");
1349                Sprint_Node (Key_Expression (Node));
1350             end if;
1351
1352             Write_Str (" => ");
1353             Sprint_Node (Expression (Node));
1354
1355          when N_Component_Clause =>
1356             Write_Indent;
1357             Sprint_Node (Component_Name (Node));
1358             Write_Str_Sloc (" at ");
1359             Sprint_Node (Position (Node));
1360             Write_Char (' ');
1361             Write_Str_With_Col_Check ("range ");
1362             Sprint_Node (First_Bit (Node));
1363             Write_Str (" .. ");
1364             Sprint_Node (Last_Bit (Node));
1365             Write_Char (';');
1366
1367          when N_Component_Definition =>
1368             Set_Debug_Sloc;
1369
1370             --  Ada 2005 (AI-230): Access definition components
1371
1372             if Present (Access_Definition (Node)) then
1373                Sprint_Node (Access_Definition (Node));
1374
1375             elsif Present (Subtype_Indication (Node)) then
1376                if Aliased_Present (Node) then
1377                   Write_Str_With_Col_Check ("aliased ");
1378                end if;
1379
1380                --  Ada 2005 (AI-231)
1381
1382                if Null_Exclusion_Present (Node) then
1383                   Write_Str (" not null ");
1384                end if;
1385
1386                Sprint_Node (Subtype_Indication (Node));
1387
1388             else
1389                Write_Str (" ??? ");
1390             end if;
1391
1392          when N_Component_Declaration =>
1393             if Write_Indent_Identifiers_Sloc (Node) then
1394                Write_Str (" : ");
1395                Sprint_Node (Component_Definition (Node));
1396
1397                if Present (Expression (Node)) then
1398                   Write_Str (" := ");
1399                   Sprint_Node (Expression (Node));
1400                end if;
1401
1402                Write_Char (';');
1403             end if;
1404
1405          when N_Component_List =>
1406             if Null_Present (Node) then
1407                Indent_Begin;
1408                Write_Indent_Str_Sloc ("null");
1409                Write_Char (';');
1410                Indent_End;
1411
1412             else
1413                Set_Debug_Sloc;
1414                Sprint_Indented_List (Component_Items (Node));
1415                Sprint_Node (Variant_Part (Node));
1416             end if;
1417
1418          when N_Compound_Statement =>
1419             Write_Indent_Str ("do");
1420             Indent_Begin;
1421             Sprint_Node_List (Actions (Node));
1422             Indent_End;
1423             Write_Indent_Str ("end;");
1424
1425          when N_Conditional_Entry_Call =>
1426             Write_Indent_Str_Sloc ("select");
1427             Indent_Begin;
1428             Sprint_Node (Entry_Call_Alternative (Node));
1429             Indent_End;
1430             Write_Indent_Str ("else");
1431             Sprint_Indented_List (Else_Statements (Node));
1432             Write_Indent_Str ("end select;");
1433
1434          when N_Constrained_Array_Definition =>
1435             Write_Str_With_Col_Check_Sloc ("array ");
1436             Sprint_Paren_Comma_List (Discrete_Subtype_Definitions (Node));
1437             Write_Str (" of ");
1438
1439             Sprint_Node (Component_Definition (Node));
1440
1441          --  A contract node should not appear in the tree. It is a semantic
1442          --  node attached to entry and [generic] subprogram entities. But we
1443          --  still provide meaningful output, in case called from the debugger.
1444
1445          when N_Contract =>
1446             declare
1447                P : Node_Id;
1448
1449             begin
1450                Indent_Begin;
1451                Write_Str ("N_Contract node");
1452                Write_Eol;
1453
1454                Write_Indent_Str ("Pre_Post_Conditions");
1455                Indent_Begin;
1456
1457                P := Pre_Post_Conditions (Node);
1458                while Present (P) loop
1459                   Sprint_Node (P);
1460                   P := Next_Pragma (P);
1461                end loop;
1462
1463                Write_Eol;
1464                Indent_End;
1465
1466                Write_Indent_Str ("Contract_Test_Cases");
1467                Indent_Begin;
1468
1469                P := Contract_Test_Cases (Node);
1470                while Present (P) loop
1471                   Sprint_Node (P);
1472                   P := Next_Pragma (P);
1473                end loop;
1474
1475                Write_Eol;
1476                Indent_End;
1477
1478                Write_Indent_Str ("Classifications");
1479                Indent_Begin;
1480
1481                P := Classifications (Node);
1482                while Present (P) loop
1483                   Sprint_Node (P);
1484                   P := Next_Pragma (P);
1485                end loop;
1486
1487                Write_Eol;
1488                Indent_End;
1489                Indent_End;
1490             end;
1491
1492          when N_Decimal_Fixed_Point_Definition =>
1493             Write_Str_With_Col_Check_Sloc ("delta ");
1494             Sprint_Node (Delta_Expression (Node));
1495             Write_Str_With_Col_Check (" digits ");
1496             Sprint_Node (Digits_Expression (Node));
1497             Sprint_Opt_Node (Real_Range_Specification (Node));
1498
1499          when N_Defining_Character_Literal =>
1500             Write_Name_With_Col_Check_Sloc (Chars (Node));
1501
1502          when N_Defining_Identifier =>
1503             Set_Debug_Sloc;
1504             Write_Id (Node);
1505
1506          when N_Defining_Operator_Symbol =>
1507             Write_Name_With_Col_Check_Sloc (Chars (Node));
1508
1509          when N_Defining_Program_Unit_Name =>
1510             Set_Debug_Sloc;
1511             Sprint_Node (Name (Node));
1512             Write_Char ('.');
1513             Write_Id (Defining_Identifier (Node));
1514
1515          when N_Delay_Alternative =>
1516             Sprint_Node_List (Pragmas_Before (Node));
1517
1518             if Present (Condition (Node)) then
1519                Write_Indent;
1520                Write_Str_With_Col_Check ("when ");
1521                Sprint_Node (Condition (Node));
1522                Write_Str (" => ");
1523                Indent_Annull;
1524             end if;
1525
1526             Sprint_Node_Sloc (Delay_Statement (Node));
1527             Sprint_Node_List (Statements (Node));
1528
1529          when N_Delay_Relative_Statement =>
1530             Write_Indent_Str_Sloc ("delay ");
1531             Sprint_Node (Expression (Node));
1532             Write_Char (';');
1533
1534          when N_Delay_Until_Statement =>
1535             Write_Indent_Str_Sloc ("delay until ");
1536             Sprint_Node (Expression (Node));
1537             Write_Char (';');
1538
1539          when N_Delta_Constraint =>
1540             Write_Str_With_Col_Check_Sloc ("delta ");
1541             Sprint_Node (Delta_Expression (Node));
1542             Sprint_Opt_Node (Range_Constraint (Node));
1543
1544          when N_Derived_Type_Definition =>
1545             if Abstract_Present (Node) then
1546                Write_Str_With_Col_Check ("abstract ");
1547             end if;
1548
1549             Write_Str_With_Col_Check ("new ");
1550
1551             --  Ada 2005 (AI-231)
1552
1553             if Null_Exclusion_Present (Node) then
1554                Write_Str_With_Col_Check ("not null ");
1555             end if;
1556
1557             Sprint_Node (Subtype_Indication (Node));
1558
1559             if Present (Interface_List (Node)) then
1560                Write_Str_With_Col_Check (" and ");
1561                Sprint_And_List (Interface_List (Node));
1562                Write_Str_With_Col_Check (" with ");
1563             end if;
1564
1565             if Present (Record_Extension_Part (Node)) then
1566                if No (Interface_List (Node)) then
1567                   Write_Str_With_Col_Check (" with ");
1568                end if;
1569
1570                Sprint_Node (Record_Extension_Part (Node));
1571             end if;
1572
1573          when N_Designator =>
1574             Sprint_Node (Name (Node));
1575             Write_Char_Sloc ('.');
1576             Write_Id (Identifier (Node));
1577
1578          when N_Digits_Constraint =>
1579             Write_Str_With_Col_Check_Sloc ("digits ");
1580             Sprint_Node (Digits_Expression (Node));
1581             Sprint_Opt_Node (Range_Constraint (Node));
1582
1583          when N_Discriminant_Association =>
1584             Set_Debug_Sloc;
1585
1586             if Present (Selector_Names (Node)) then
1587                Sprint_Bar_List (Selector_Names (Node));
1588                Write_Str (" => ");
1589             end if;
1590
1591             Set_Debug_Sloc;
1592             Sprint_Node (Expression (Node));
1593
1594          when N_Discriminant_Specification =>
1595             Set_Debug_Sloc;
1596
1597             if Write_Identifiers (Node) then
1598                Write_Str (" : ");
1599
1600                if Null_Exclusion_Present (Node) then
1601                   Write_Str ("not null ");
1602                end if;
1603
1604                Sprint_Node (Discriminant_Type (Node));
1605
1606                if Present (Expression (Node)) then
1607                   Write_Str (" := ");
1608                   Sprint_Node (Expression (Node));
1609                end if;
1610             else
1611                Write_Str (", ");
1612             end if;
1613
1614          when N_Elsif_Part =>
1615             Write_Indent_Str_Sloc ("elsif ");
1616             Sprint_Node (Condition (Node));
1617             Write_Str_With_Col_Check (" then");
1618             Sprint_Indented_List (Then_Statements (Node));
1619
1620          when N_Empty =>
1621             null;
1622
1623          when N_Entry_Body =>
1624             Write_Indent_Str_Sloc ("entry ");
1625             Write_Id (Defining_Identifier (Node));
1626             Sprint_Node (Entry_Body_Formal_Part (Node));
1627             Write_Str_With_Col_Check (" is");
1628             Sprint_Indented_List (Declarations (Node));
1629             Write_Indent_Str ("begin");
1630             Sprint_Node (Handled_Statement_Sequence (Node));
1631             Write_Indent_Str ("end ");
1632             Write_Id (Defining_Identifier (Node));
1633             Write_Char (';');
1634
1635          when N_Entry_Body_Formal_Part =>
1636             if Present (Entry_Index_Specification (Node)) then
1637                Write_Str_With_Col_Check_Sloc (" (");
1638                Sprint_Node (Entry_Index_Specification (Node));
1639                Write_Char (')');
1640             end if;
1641
1642             Write_Param_Specs (Node);
1643             Write_Str_With_Col_Check_Sloc (" when ");
1644             Sprint_Node (Condition (Node));
1645
1646          when N_Entry_Call_Alternative =>
1647             Sprint_Node_List (Pragmas_Before (Node));
1648             Sprint_Node_Sloc (Entry_Call_Statement (Node));
1649             Sprint_Node_List (Statements (Node));
1650
1651          when N_Entry_Call_Statement =>
1652             Write_Indent;
1653             Sprint_Node_Sloc (Name (Node));
1654             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
1655             Write_Char (';');
1656
1657          when N_Entry_Declaration =>
1658             Write_Indent_Str_Sloc ("entry ");
1659             Write_Id (Defining_Identifier (Node));
1660
1661             if Present (Discrete_Subtype_Definition (Node)) then
1662                Write_Str_With_Col_Check (" (");
1663                Sprint_Node (Discrete_Subtype_Definition (Node));
1664                Write_Char (')');
1665             end if;
1666
1667             Write_Param_Specs (Node);
1668             Write_Char (';');
1669
1670          when N_Entry_Index_Specification =>
1671             Write_Str_With_Col_Check_Sloc ("for ");
1672             Write_Id (Defining_Identifier (Node));
1673             Write_Str_With_Col_Check (" in ");
1674             Sprint_Node (Discrete_Subtype_Definition (Node));
1675
1676          when N_Enumeration_Representation_Clause =>
1677             Write_Indent_Str_Sloc ("for ");
1678             Write_Id (Identifier (Node));
1679             Write_Str_With_Col_Check (" use ");
1680             Sprint_Node (Array_Aggregate (Node));
1681             Write_Char (';');
1682
1683          when N_Enumeration_Type_Definition =>
1684             Set_Debug_Sloc;
1685
1686             --  Skip attempt to print Literals field if it's not there and
1687             --  we are in package Standard (case of Character, which is
1688             --  handled specially (without an explicit literals list).
1689
1690             if Sloc (Node) > Standard_Location
1691               or else Present (Literals (Node))
1692             then
1693                Sprint_Paren_Comma_List (Literals (Node));
1694             end if;
1695
1696          when N_Error =>
1697             Write_Str_With_Col_Check_Sloc ("<error>");
1698
1699          when N_Exception_Declaration =>
1700             if Write_Indent_Identifiers (Node) then
1701                Write_Str_With_Col_Check (" : ");
1702
1703                if Is_Statically_Allocated (Defining_Identifier (Node)) then
1704                   Write_Str_With_Col_Check ("static ");
1705                end if;
1706
1707                Write_Str_Sloc ("exception");
1708
1709                if Present (Expression (Node)) then
1710                   Write_Str (" := ");
1711                   Sprint_Node (Expression (Node));
1712                end if;
1713
1714                Write_Char (';');
1715             end if;
1716
1717          when N_Exception_Handler =>
1718             Write_Indent_Str_Sloc ("when ");
1719
1720             if Present (Choice_Parameter (Node)) then
1721                Sprint_Node (Choice_Parameter (Node));
1722                Write_Str (" : ");
1723             end if;
1724
1725             Sprint_Bar_List (Exception_Choices (Node));
1726             Write_Str (" => ");
1727             Sprint_Indented_List (Statements (Node));
1728
1729          when N_Exception_Renaming_Declaration =>
1730             Write_Indent;
1731             Set_Debug_Sloc;
1732             Sprint_Node (Defining_Identifier (Node));
1733             Write_Str_With_Col_Check (" : exception renames ");
1734             Sprint_Node (Name (Node));
1735             Write_Char (';');
1736
1737          when N_Exit_Statement =>
1738             Write_Indent_Str_Sloc ("exit");
1739             Sprint_Opt_Node (Name (Node));
1740
1741             if Present (Condition (Node)) then
1742                Write_Str_With_Col_Check (" when ");
1743                Sprint_Node (Condition (Node));
1744             end if;
1745
1746             Write_Char (';');
1747
1748          when N_Expanded_Name =>
1749             Sprint_Node (Prefix (Node));
1750             Write_Char_Sloc ('.');
1751             Sprint_Node (Selector_Name (Node));
1752
1753          when N_Explicit_Dereference =>
1754             Sprint_Node (Prefix (Node));
1755             Write_Char_Sloc ('.');
1756             Write_Str_Sloc ("all");
1757
1758          when N_Expression_With_Actions =>
1759             Indent_Begin;
1760             Write_Indent_Str_Sloc ("do ");
1761             Indent_Begin;
1762             Sprint_Node_List (Actions (Node));
1763             Indent_End;
1764             Write_Indent;
1765             Write_Str_With_Col_Check_Sloc ("in ");
1766             Sprint_Node (Expression (Node));
1767             Write_Str_With_Col_Check (" end");
1768             Indent_End;
1769             Write_Indent;
1770
1771          when N_Expression_Function =>
1772             Write_Indent;
1773             Sprint_Node_Sloc (Specification (Node));
1774             Write_Str (" is");
1775             Indent_Begin;
1776             Write_Indent;
1777             Sprint_Node (Expression (Node));
1778             Write_Char (';');
1779             Indent_End;
1780
1781          when N_Extended_Return_Statement =>
1782             Write_Indent_Str_Sloc ("return ");
1783             Sprint_Node_List (Return_Object_Declarations (Node));
1784
1785             if Present (Handled_Statement_Sequence (Node)) then
1786                Write_Str_With_Col_Check (" do");
1787                Sprint_Node (Handled_Statement_Sequence (Node));
1788                Write_Indent_Str ("end return;");
1789             else
1790                Write_Indent_Str (";");
1791             end if;
1792
1793          when N_Delta_Aggregate =>
1794             Write_Str_With_Col_Check_Sloc ("(");
1795             Sprint_Node (Expression (Node));
1796             Write_Str_With_Col_Check (" with delta ");
1797             Sprint_Comma_List (Component_Associations (Node));
1798             Write_Char (')');
1799
1800          when N_Extension_Aggregate =>
1801             Write_Str_With_Col_Check_Sloc ("(");
1802             Sprint_Node (Ancestor_Part (Node));
1803             Write_Str_With_Col_Check (" with ");
1804
1805             if Null_Record_Present (Node) then
1806                Write_Str_With_Col_Check ("null record");
1807             else
1808                if Present (Expressions (Node)) then
1809                   Sprint_Comma_List (Expressions (Node));
1810
1811                   if Present (Component_Associations (Node)) then
1812                      Write_Str (", ");
1813                   end if;
1814                end if;
1815
1816                if Present (Component_Associations (Node)) then
1817                   Sprint_Comma_List (Component_Associations (Node));
1818                end if;
1819             end if;
1820
1821             Write_Char (')');
1822
1823          when N_Floating_Point_Definition =>
1824             Write_Str_With_Col_Check_Sloc ("digits ");
1825             Sprint_Node (Digits_Expression (Node));
1826             Sprint_Opt_Node (Real_Range_Specification (Node));
1827
1828          when N_Formal_Decimal_Fixed_Point_Definition =>
1829             Write_Str_With_Col_Check_Sloc ("delta <> digits <>");
1830
1831          when N_Formal_Derived_Type_Definition =>
1832             Write_Str_With_Col_Check_Sloc ("new ");
1833             Sprint_Node (Subtype_Mark (Node));
1834
1835             if Present (Interface_List (Node)) then
1836                Write_Str_With_Col_Check (" and ");
1837                Sprint_And_List (Interface_List (Node));
1838             end if;
1839
1840             if Private_Present (Node) then
1841                Write_Str_With_Col_Check (" with private");
1842             end if;
1843
1844          when N_Formal_Abstract_Subprogram_Declaration =>
1845             Write_Indent_Str_Sloc ("with ");
1846             Sprint_Node (Specification (Node));
1847
1848             Write_Str_With_Col_Check (" is abstract");
1849
1850             if Box_Present (Node) then
1851                Write_Str_With_Col_Check (" <>");
1852             elsif Present (Default_Name (Node)) then
1853                Write_Str_With_Col_Check (" ");
1854                Sprint_Node (Default_Name (Node));
1855             end if;
1856
1857             Write_Char (';');
1858
1859          when N_Formal_Concrete_Subprogram_Declaration =>
1860             Write_Indent_Str_Sloc ("with ");
1861             Sprint_Node (Specification (Node));
1862
1863             if Box_Present (Node) then
1864                Write_Str_With_Col_Check (" is <>");
1865             elsif Present (Default_Name (Node)) then
1866                Write_Str_With_Col_Check (" is ");
1867                Sprint_Node (Default_Name (Node));
1868             end if;
1869
1870             Write_Char (';');
1871
1872          when N_Formal_Discrete_Type_Definition =>
1873             Write_Str_With_Col_Check_Sloc ("<>");
1874
1875          when N_Formal_Floating_Point_Definition =>
1876             Write_Str_With_Col_Check_Sloc ("digits <>");
1877
1878          when N_Formal_Modular_Type_Definition =>
1879             Write_Str_With_Col_Check_Sloc ("mod <>");
1880
1881          when N_Formal_Object_Declaration =>
1882             Set_Debug_Sloc;
1883
1884             if Write_Indent_Identifiers (Node) then
1885                Write_Str (" : ");
1886
1887                if In_Present (Node) then
1888                   Write_Str_With_Col_Check ("in ");
1889                end if;
1890
1891                if Out_Present (Node) then
1892                   Write_Str_With_Col_Check ("out ");
1893                end if;
1894
1895                if Present (Subtype_Mark (Node)) then
1896
1897                   --  Ada 2005 (AI-423): Formal object with null exclusion
1898
1899                   if Null_Exclusion_Present (Node) then
1900                      Write_Str ("not null ");
1901                   end if;
1902
1903                   Sprint_Node (Subtype_Mark (Node));
1904
1905                --  Ada 2005 (AI-423): Formal object with access definition
1906
1907                else
1908                   pragma Assert (Present (Access_Definition (Node)));
1909
1910                   Sprint_Node (Access_Definition (Node));
1911                end if;
1912
1913                if Present (Default_Expression (Node)) then
1914                   Write_Str (" := ");
1915                   Sprint_Node (Default_Expression (Node));
1916                end if;
1917
1918                Write_Char (';');
1919             end if;
1920
1921          when N_Formal_Ordinary_Fixed_Point_Definition =>
1922             Write_Str_With_Col_Check_Sloc ("delta <>");
1923
1924          when N_Formal_Package_Declaration =>
1925             Write_Indent_Str_Sloc ("with package ");
1926             Write_Id (Defining_Identifier (Node));
1927             Write_Str_With_Col_Check (" is new ");
1928             Sprint_Node (Name (Node));
1929             Write_Str_With_Col_Check (" (<>);");
1930
1931          when N_Formal_Private_Type_Definition =>
1932             if Abstract_Present (Node) then
1933                Write_Str_With_Col_Check ("abstract ");
1934             end if;
1935
1936             if Tagged_Present (Node) then
1937                Write_Str_With_Col_Check ("tagged ");
1938             end if;
1939
1940             if Limited_Present (Node) then
1941                Write_Str_With_Col_Check ("limited ");
1942             end if;
1943
1944             Write_Str_With_Col_Check_Sloc ("private");
1945
1946          when N_Formal_Incomplete_Type_Definition =>
1947             if Tagged_Present (Node) then
1948                Write_Str_With_Col_Check ("is tagged ");
1949             end if;
1950
1951          when N_Formal_Signed_Integer_Type_Definition =>
1952             Write_Str_With_Col_Check_Sloc ("range <>");
1953
1954          when N_Formal_Type_Declaration =>
1955             Write_Indent_Str_Sloc ("type ");
1956             Write_Id (Defining_Identifier (Node));
1957
1958             if Present (Discriminant_Specifications (Node)) then
1959                Write_Discr_Specs (Node);
1960             elsif Unknown_Discriminants_Present (Node) then
1961                Write_Str_With_Col_Check ("(<>)");
1962             end if;
1963
1964             if Nkind (Formal_Type_Definition (Node)) /=
1965                 N_Formal_Incomplete_Type_Definition
1966             then
1967                Write_Str_With_Col_Check (" is ");
1968             end if;
1969
1970             Sprint_Node (Formal_Type_Definition (Node));
1971             Write_Char (';');
1972
1973          when N_Free_Statement =>
1974             Write_Indent_Str_Sloc ("free ");
1975             Sprint_Node (Expression (Node));
1976             Write_Char (';');
1977
1978          when N_Freeze_Entity =>
1979             if Dump_Original_Only then
1980                null;
1981
1982             --  A freeze node is output if it has some effect (i.e. non-empty
1983             --  actions, or freeze node for an itype, which causes elaboration
1984             --  of the itype), and is also always output if Dump_Freeze_Null
1985             --  is set True.
1986
1987             elsif Present (Actions (Node))
1988               or else Is_Itype (Entity (Node))
1989               or else Dump_Freeze_Null
1990             then
1991                Write_Indent;
1992                Write_Rewrite_Str ("<<<");
1993                Write_Str_With_Col_Check_Sloc ("freeze ");
1994                Write_Id (Entity (Node));
1995                Write_Str (" [");
1996
1997                if No (Actions (Node)) then
1998                   Write_Char (']');
1999
2000                else
2001                   --  Output freeze actions. We increment Freeze_Indent during
2002                   --  this output to avoid generating extra blank lines before
2003                   --  any procedures included in the freeze actions.
2004
2005                   Freeze_Indent := Freeze_Indent + 1;
2006                   Sprint_Indented_List (Actions (Node));
2007                   Freeze_Indent := Freeze_Indent - 1;
2008                   Write_Indent_Str ("]");
2009                end if;
2010
2011                Write_Rewrite_Str (">>>");
2012             end if;
2013
2014          when N_Freeze_Generic_Entity =>
2015             if Dump_Original_Only then
2016                null;
2017
2018             else
2019                Write_Indent;
2020                Write_Str_With_Col_Check_Sloc ("freeze_generic ");
2021                Write_Id (Entity (Node));
2022             end if;
2023
2024          when N_Full_Type_Declaration =>
2025             Write_Indent_Str_Sloc ("type ");
2026             Sprint_Node (Defining_Identifier (Node));
2027             Write_Discr_Specs (Node);
2028             Write_Str_With_Col_Check (" is ");
2029             Sprint_Node (Type_Definition (Node));
2030             Write_Char (';');
2031
2032          when N_Function_Call =>
2033             Set_Debug_Sloc;
2034             Write_Subprogram_Name (Name (Node));
2035             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
2036
2037          when N_Function_Instantiation =>
2038             Write_Indent_Str_Sloc ("function ");
2039             Sprint_Node (Defining_Unit_Name (Node));
2040             Write_Str_With_Col_Check (" is new ");
2041             Sprint_Node (Name (Node));
2042             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2043             Write_Char (';');
2044
2045          when N_Function_Specification =>
2046             Write_Str_With_Col_Check_Sloc ("function ");
2047             Sprint_Node (Defining_Unit_Name (Node));
2048             Write_Param_Specs (Node);
2049             Write_Str_With_Col_Check (" return ");
2050
2051             --  Ada 2005 (AI-231)
2052
2053             if Nkind (Result_Definition (Node)) /= N_Access_Definition
2054               and then Null_Exclusion_Present (Node)
2055             then
2056                Write_Str (" not null ");
2057             end if;
2058
2059             Sprint_Node (Result_Definition (Node));
2060
2061          when N_Generic_Association =>
2062             Set_Debug_Sloc;
2063
2064             if Present (Selector_Name (Node)) then
2065                Sprint_Node (Selector_Name (Node));
2066                Write_Str (" => ");
2067             end if;
2068
2069             Sprint_Node (Explicit_Generic_Actual_Parameter (Node));
2070
2071          when N_Generic_Function_Renaming_Declaration =>
2072             Write_Indent_Str_Sloc ("generic function ");
2073             Sprint_Node (Defining_Unit_Name (Node));
2074             Write_Str_With_Col_Check (" renames ");
2075             Sprint_Node (Name (Node));
2076             Write_Char (';');
2077
2078          when N_Generic_Package_Declaration =>
2079             Extra_Blank_Line;
2080             Write_Indent_Str_Sloc ("generic ");
2081             Sprint_Indented_List (Generic_Formal_Declarations (Node));
2082             Write_Indent;
2083             Sprint_Node (Specification (Node));
2084             Write_Char (';');
2085
2086          when N_Generic_Package_Renaming_Declaration =>
2087             Write_Indent_Str_Sloc ("generic package ");
2088             Sprint_Node (Defining_Unit_Name (Node));
2089             Write_Str_With_Col_Check (" renames ");
2090             Sprint_Node (Name (Node));
2091             Write_Char (';');
2092
2093          when N_Generic_Procedure_Renaming_Declaration =>
2094             Write_Indent_Str_Sloc ("generic procedure ");
2095             Sprint_Node (Defining_Unit_Name (Node));
2096             Write_Str_With_Col_Check (" renames ");
2097             Sprint_Node (Name (Node));
2098             Write_Char (';');
2099
2100          when N_Generic_Subprogram_Declaration =>
2101             Extra_Blank_Line;
2102             Write_Indent_Str_Sloc ("generic ");
2103             Sprint_Indented_List (Generic_Formal_Declarations (Node));
2104             Write_Indent;
2105             Sprint_Node (Specification (Node));
2106             Write_Char (';');
2107
2108          when N_Goto_Statement =>
2109             Write_Indent_Str_Sloc ("goto ");
2110             Sprint_Node (Name (Node));
2111             Write_Char (';');
2112
2113             if Nkind (Next (Node)) = N_Label then
2114                Write_Indent;
2115             end if;
2116
2117          when N_Goto_When_Statement =>
2118             Write_Indent_Str_Sloc ("goto ");
2119             Sprint_Node (Name (Node));
2120             Write_Str (" when ");
2121             Sprint_Node (Condition (Node));
2122             Write_Char (';');
2123
2124          when N_Handled_Sequence_Of_Statements =>
2125             Set_Debug_Sloc;
2126             Sprint_Indented_List (Statements (Node));
2127
2128             if Present (Exception_Handlers (Node)) then
2129                Write_Indent_Str ("exception");
2130                Indent_Begin;
2131                Sprint_Node_List (Exception_Handlers (Node));
2132                Indent_End;
2133             end if;
2134
2135             if Present (At_End_Proc (Node)) then
2136                Write_Indent_Str ("at end");
2137                Indent_Begin;
2138                Write_Indent;
2139                Sprint_Node (At_End_Proc (Node));
2140                Write_Char (';');
2141                Indent_End;
2142             end if;
2143
2144          when N_Identifier =>
2145             Set_Debug_Sloc;
2146             Write_Id (Node);
2147
2148          when N_If_Expression =>
2149             declare
2150                Has_Parens : constant Boolean := Paren_Count (Node) > 0;
2151                Condition  : constant Node_Id := First (Expressions (Node));
2152                Then_Expr  : constant Node_Id := Next (Condition);
2153
2154             begin
2155                --  The syntax for if_expression does not include parentheses,
2156                --  but sometimes parentheses are required, so unconditionally
2157                --  generate them here unless already present.
2158
2159                if not Has_Parens then
2160                   Write_Char ('(');
2161                end if;
2162
2163                Write_Str_With_Col_Check_Sloc ("if ");
2164                Sprint_Node (Condition);
2165                Write_Str_With_Col_Check (" then ");
2166
2167                --  Defense against junk here
2168
2169                if Present (Then_Expr) then
2170                   Sprint_Node (Then_Expr);
2171
2172                   if Present (Next (Then_Expr)) then
2173                      Write_Str_With_Col_Check (" else ");
2174                      Sprint_Node (Next (Then_Expr));
2175                   end if;
2176                end if;
2177
2178                if not Has_Parens then
2179                   Write_Char (')');
2180                end if;
2181             end;
2182
2183          when N_If_Statement =>
2184             Write_Indent_Str_Sloc ("if ");
2185             Sprint_Node (Condition (Node));
2186             Write_Str_With_Col_Check (" then");
2187             Sprint_Indented_List (Then_Statements (Node));
2188             Sprint_Opt_Node_List (Elsif_Parts (Node));
2189
2190             if Present (Else_Statements (Node)) then
2191                Write_Indent_Str ("else");
2192                Sprint_Indented_List (Else_Statements (Node));
2193             end if;
2194
2195             Write_Indent_Str ("end if;");
2196
2197          when N_Implicit_Label_Declaration =>
2198             if not Dump_Original_Only then
2199                Write_Indent;
2200                Write_Rewrite_Str ("<<<");
2201                Set_Debug_Sloc;
2202                Write_Id (Defining_Identifier (Node));
2203                Write_Str (" : ");
2204                Write_Str_With_Col_Check ("label");
2205                Write_Rewrite_Str (">>>");
2206             end if;
2207
2208          when N_In =>
2209             Sprint_Left_Opnd (Node);
2210             Write_Str_Sloc (" in ");
2211
2212             if Present (Right_Opnd (Node)) then
2213                Sprint_Right_Opnd (Node);
2214             else
2215                Sprint_Bar_List (Alternatives (Node));
2216             end if;
2217
2218          when N_Incomplete_Type_Declaration =>
2219             Write_Indent_Str_Sloc ("type ");
2220             Write_Id (Defining_Identifier (Node));
2221
2222             if Present (Discriminant_Specifications (Node)) then
2223                Write_Discr_Specs (Node);
2224             elsif Unknown_Discriminants_Present (Node) then
2225                Write_Str_With_Col_Check ("(<>)");
2226             end if;
2227
2228             Write_Char (';');
2229
2230          when N_Index_Or_Discriminant_Constraint =>
2231             Set_Debug_Sloc;
2232             Sprint_Paren_Comma_List (Constraints (Node));
2233
2234          when N_Indexed_Component =>
2235             Sprint_Node_Sloc (Prefix (Node));
2236             Sprint_Opt_Paren_Comma_List (Expressions (Node));
2237
2238          when N_Integer_Literal =>
2239             if Print_In_Hex (Node) then
2240                Write_Uint_With_Col_Check_Sloc (Intval (Node), Hex);
2241             else
2242                Write_Uint_With_Col_Check_Sloc (Intval (Node), Auto);
2243             end if;
2244
2245          when N_Iteration_Scheme =>
2246             if Present (Condition (Node)) then
2247                Write_Str_With_Col_Check_Sloc ("while ");
2248                Sprint_Node (Condition (Node));
2249             else
2250                Write_Str_With_Col_Check_Sloc ("for ");
2251
2252                if Present (Iterator_Specification (Node)) then
2253                   Sprint_Node (Iterator_Specification (Node));
2254                else
2255                   Sprint_Node (Loop_Parameter_Specification (Node));
2256                end if;
2257             end if;
2258
2259             Write_Char (' ');
2260
2261          when N_Iterator_Specification =>
2262             Set_Debug_Sloc;
2263             Write_Id (Defining_Identifier (Node));
2264
2265             if Present (Subtype_Indication (Node)) then
2266                Write_Str_With_Col_Check (" : ");
2267                Sprint_Node (Subtype_Indication (Node));
2268             end if;
2269
2270             if Of_Present (Node) then
2271                Write_Str_With_Col_Check (" of ");
2272             else
2273                Write_Str_With_Col_Check (" in ");
2274             end if;
2275
2276             if Reverse_Present (Node) then
2277                Write_Str_With_Col_Check ("reverse ");
2278             end if;
2279
2280             Sprint_Node (Name (Node));
2281
2282          when N_Itype_Reference =>
2283             Write_Indent_Str_Sloc ("reference ");
2284             Write_Id (Itype (Node));
2285
2286          when N_Label =>
2287             Write_Indent_Str_Sloc ("<<");
2288             Write_Id (Identifier (Node));
2289             Write_Str (">>");
2290
2291          when N_Loop_Parameter_Specification =>
2292             Set_Debug_Sloc;
2293             Write_Id (Defining_Identifier (Node));
2294             Write_Str_With_Col_Check (" in ");
2295
2296             if Reverse_Present (Node) then
2297                Write_Str_With_Col_Check ("reverse ");
2298             end if;
2299
2300             Sprint_Node (Discrete_Subtype_Definition (Node));
2301
2302          when N_Loop_Statement =>
2303             Write_Indent;
2304
2305             if Present (Identifier (Node))
2306               and then (not Has_Created_Identifier (Node)
2307                           or else not Dump_Original_Only)
2308             then
2309                Write_Rewrite_Str ("<<<");
2310                Write_Id (Identifier (Node));
2311                Write_Str (" : ");
2312                Write_Rewrite_Str (">>>");
2313                Sprint_Node (Iteration_Scheme (Node));
2314                Write_Str_With_Col_Check_Sloc ("loop");
2315                Sprint_Indented_List (Statements (Node));
2316                Write_Indent_Str ("end loop ");
2317                Write_Rewrite_Str ("<<<");
2318                Write_Id (Identifier (Node));
2319                Write_Rewrite_Str (">>>");
2320                Write_Char (';');
2321
2322             else
2323                Sprint_Node (Iteration_Scheme (Node));
2324                Write_Str_With_Col_Check_Sloc ("loop");
2325                Sprint_Indented_List (Statements (Node));
2326                Write_Indent_Str ("end loop;");
2327             end if;
2328
2329          when N_Mod_Clause =>
2330             Sprint_Node_List (Pragmas_Before (Node));
2331             Write_Str_With_Col_Check_Sloc ("at mod ");
2332             Sprint_Node (Expression (Node));
2333
2334          when N_Modular_Type_Definition =>
2335             Write_Str_With_Col_Check_Sloc ("mod ");
2336             Sprint_Node (Expression (Node));
2337
2338          when N_Not_In =>
2339             Sprint_Left_Opnd (Node);
2340             Write_Str_Sloc (" not in ");
2341
2342             if Present (Right_Opnd (Node)) then
2343                Sprint_Right_Opnd (Node);
2344             else
2345                Sprint_Bar_List (Alternatives (Node));
2346             end if;
2347
2348          when N_Null =>
2349             Write_Str_With_Col_Check_Sloc ("null");
2350
2351          when N_Null_Statement =>
2352             if Comes_From_Source (Node)
2353               or else Dump_Freeze_Null
2354               or else not Is_List_Member (Node)
2355               or else (No (Prev (Node)) and then No (Next (Node)))
2356             then
2357                Write_Indent_Str_Sloc ("null;");
2358             end if;
2359
2360          when N_Number_Declaration =>
2361             Set_Debug_Sloc;
2362
2363             if Write_Indent_Identifiers (Node) then
2364                Write_Str_With_Col_Check (" : constant ");
2365                Write_Str (" := ");
2366                Sprint_Node (Expression (Node));
2367                Write_Char (';');
2368             end if;
2369
2370          when N_Object_Declaration =>
2371             Set_Debug_Sloc;
2372
2373             if Write_Indent_Identifiers (Node) then
2374                declare
2375                   Def_Id : constant Entity_Id := Defining_Identifier (Node);
2376
2377                begin
2378                   Write_Str_With_Col_Check (" : ");
2379
2380                   if Is_Statically_Allocated (Def_Id) then
2381                      Write_Str_With_Col_Check ("static ");
2382                   end if;
2383
2384                   if Aliased_Present (Node) then
2385                      Write_Str_With_Col_Check ("aliased ");
2386                   end if;
2387
2388                   if Constant_Present (Node) then
2389                      Write_Str_With_Col_Check ("constant ");
2390                   end if;
2391
2392                   --  Ada 2005 (AI-231)
2393
2394                   if Null_Exclusion_Present (Node) then
2395                      Write_Str_With_Col_Check ("not null ");
2396                   end if;
2397
2398                   --  Print type. We used to print the Object_Definition from
2399                   --  the node, but it is much more useful to print the Etype
2400                   --  of the defining identifier for the case where the nominal
2401                   --  type is an unconstrained array type. For example, this
2402                   --  will be a clear reference to the Itype with the bounds
2403                   --  in the case of a type like String. The object after
2404                   --  all is constrained, even if its nominal subtype is
2405                   --  unconstrained.
2406
2407                   declare
2408                      Odef : constant Node_Id := Object_Definition (Node);
2409
2410                   begin
2411                      if Nkind (Odef) = N_Identifier
2412                        and then Present (Etype (Odef))
2413                        and then Is_Array_Type (Etype (Odef))
2414                        and then not Is_Constrained (Etype (Odef))
2415                        and then Present (Etype (Def_Id))
2416                      then
2417                         Sprint_Node (Etype (Def_Id));
2418
2419                      --  In other cases, the nominal type is fine to print
2420
2421                      else
2422                         Sprint_Node (Odef);
2423                      end if;
2424                   end;
2425
2426                   if Present (Expression (Node))
2427                     and then Expression (Node) /= Error
2428                     and then not No_Initialization (Node)
2429                   then
2430                      Write_Str (" := ");
2431                      Sprint_Node (Expression (Node));
2432                   end if;
2433
2434                   Write_Char (';');
2435
2436                   --  Handle implicit importation and implicit exportation of
2437                   --  object declarations:
2438                   --    $pragma import (Convention_Id, Def_Id, "...");
2439                   --    $pragma export (Convention_Id, Def_Id, "...");
2440
2441                   if Is_Internal (Def_Id)
2442                     and then Present (Interface_Name (Def_Id))
2443                   then
2444                      Write_Indent_Str_Sloc ("$pragma ");
2445
2446                      if Is_Imported (Def_Id) then
2447                         Write_Str ("import (");
2448
2449                      else pragma Assert (Is_Exported (Def_Id));
2450                         Write_Str ("export (");
2451                      end if;
2452
2453                      declare
2454                         Prefix : constant String  := "Convention_";
2455                         S      : constant String  := Convention (Def_Id)'Img;
2456
2457                      begin
2458                         Name_Len := S'Last - Prefix'Last;
2459                         Name_Buffer (1 .. Name_Len) :=
2460                           S (Prefix'Last + 1 .. S'Last);
2461                         Set_Casing (All_Lower_Case);
2462                         Write_Str (Name_Buffer (1 .. Name_Len));
2463                      end;
2464
2465                      Write_Str (", ");
2466                      Write_Id  (Def_Id);
2467                      Write_Str (", ");
2468                      Write_String_Table_Entry
2469                        (Strval (Interface_Name (Def_Id)));
2470                      Write_Str (");");
2471                   end if;
2472                end;
2473             end if;
2474
2475          when N_Object_Renaming_Declaration =>
2476             Write_Indent;
2477             Set_Debug_Sloc;
2478             Sprint_Node (Defining_Identifier (Node));
2479
2480             --  Ada 2005 (AI-230): Access renamings
2481
2482             if Present (Access_Definition (Node)) then
2483                Write_Str (" : ");
2484                Sprint_Node (Access_Definition (Node));
2485
2486             elsif Present (Subtype_Mark (Node)) then
2487                Write_Str (" : ");
2488
2489                --  Ada 2005 (AI-423): Object renaming with a null exclusion
2490
2491                if Null_Exclusion_Present (Node) then
2492                   Write_Str ("not null ");
2493                end if;
2494
2495                Sprint_Node (Subtype_Mark (Node));
2496
2497             --  AI12-0275: Object_Renaming_Declaration without explicit subtype
2498
2499             elsif Ada_Version >= Ada_2022 then
2500                null;
2501
2502             else
2503                Write_Str (" :  ??? ");
2504             end if;
2505
2506             Write_Str_With_Col_Check (" renames ");
2507             Sprint_Node (Name (Node));
2508             Write_Char (';');
2509
2510          when N_Op_Abs =>
2511             Write_Operator (Node, "abs ");
2512             Sprint_Right_Opnd (Node);
2513
2514          when N_Op_Add =>
2515             Sprint_Left_Opnd (Node);
2516             Write_Operator (Node, " + ");
2517             Sprint_Right_Opnd (Node);
2518
2519          when N_Op_And =>
2520             Sprint_Left_Opnd (Node);
2521             Write_Operator (Node, " and ");
2522             Sprint_Right_Opnd (Node);
2523
2524          when N_Op_Concat =>
2525             Sprint_Left_Opnd (Node);
2526             Write_Operator (Node, " & ");
2527             Sprint_Right_Opnd (Node);
2528
2529          when N_Op_Divide =>
2530             Sprint_Left_Opnd (Node);
2531             Write_Char (' ');
2532             if Rounded_Result (Node) then
2533                Write_Char ('@');
2534             end if;
2535             Write_Operator (Node, "/ ");
2536             Sprint_Right_Opnd (Node);
2537
2538          when N_Op_Eq =>
2539             Sprint_Left_Opnd (Node);
2540             Write_Operator (Node, " = ");
2541             Sprint_Right_Opnd (Node);
2542
2543          when N_Op_Expon =>
2544             Sprint_Left_Opnd (Node);
2545             Write_Operator (Node, " ** ");
2546             Sprint_Right_Opnd (Node);
2547
2548          when N_Op_Ge =>
2549             Sprint_Left_Opnd (Node);
2550             Write_Operator (Node, " >= ");
2551             Sprint_Right_Opnd (Node);
2552
2553          when N_Op_Gt =>
2554             Sprint_Left_Opnd (Node);
2555             Write_Operator (Node, " > ");
2556             Sprint_Right_Opnd (Node);
2557
2558          when N_Op_Le =>
2559             Sprint_Left_Opnd (Node);
2560             Write_Operator (Node, " <= ");
2561             Sprint_Right_Opnd (Node);
2562
2563          when N_Op_Lt =>
2564             Sprint_Left_Opnd (Node);
2565             Write_Operator (Node, " < ");
2566             Sprint_Right_Opnd (Node);
2567
2568          when N_Op_Minus =>
2569             Write_Operator (Node, "-");
2570             Sprint_Right_Opnd (Node);
2571
2572          when N_Op_Mod =>
2573             Sprint_Left_Opnd (Node);
2574             Write_Operator (Node, " mod ");
2575             Sprint_Right_Opnd (Node);
2576
2577          when N_Op_Multiply =>
2578             Sprint_Left_Opnd (Node);
2579             Write_Char (' ');
2580             if Rounded_Result (Node) then
2581                Write_Char ('@');
2582             end if;
2583             Write_Operator (Node, "* ");
2584             Sprint_Right_Opnd (Node);
2585
2586          when N_Op_Ne =>
2587             Sprint_Left_Opnd (Node);
2588             Write_Operator (Node, " /= ");
2589             Sprint_Right_Opnd (Node);
2590
2591          when N_Op_Not =>
2592             Write_Operator (Node, "not ");
2593             Sprint_Right_Opnd (Node);
2594
2595          when N_Op_Or =>
2596             Sprint_Left_Opnd (Node);
2597             Write_Operator (Node, " or ");
2598             Sprint_Right_Opnd (Node);
2599
2600          when N_Op_Plus =>
2601             Write_Operator (Node, "+");
2602             Sprint_Right_Opnd (Node);
2603
2604          when N_Op_Rem =>
2605             Sprint_Left_Opnd (Node);
2606             Write_Operator (Node, " rem ");
2607             Sprint_Right_Opnd (Node);
2608
2609          when N_Op_Shift =>
2610             Set_Debug_Sloc;
2611             Write_Id (Node);
2612             Write_Char ('!');
2613             Write_Str_With_Col_Check ("(");
2614             Sprint_Node (Left_Opnd (Node));
2615             Write_Str (", ");
2616             Sprint_Node (Right_Opnd (Node));
2617             Write_Char (')');
2618
2619          when N_Op_Subtract =>
2620             Sprint_Left_Opnd (Node);
2621             Write_Operator (Node, " - ");
2622             Sprint_Right_Opnd (Node);
2623
2624          when N_Op_Xor =>
2625             Sprint_Left_Opnd (Node);
2626             Write_Operator (Node, " xor ");
2627             Sprint_Right_Opnd (Node);
2628
2629          when N_Operator_Symbol =>
2630             Write_Name_With_Col_Check_Sloc (Chars (Node));
2631
2632          when N_Ordinary_Fixed_Point_Definition =>
2633             Write_Str_With_Col_Check_Sloc ("delta ");
2634             Sprint_Node (Delta_Expression (Node));
2635             Sprint_Opt_Node (Real_Range_Specification (Node));
2636
2637          when N_Or_Else =>
2638             Sprint_Left_Opnd (Node);
2639             Write_Str_Sloc (" or else ");
2640             Sprint_Right_Opnd (Node);
2641
2642          when N_Others_Choice =>
2643             if All_Others (Node) then
2644                Write_Str_With_Col_Check ("all ");
2645             end if;
2646
2647             Write_Str_With_Col_Check_Sloc ("others");
2648
2649          when N_Package_Body =>
2650             Extra_Blank_Line;
2651             Write_Indent_Str_Sloc ("package body ");
2652             Sprint_Node (Defining_Unit_Name (Node));
2653             Write_Str (" is");
2654             Sprint_Indented_List (Declarations (Node));
2655
2656             if Present (Handled_Statement_Sequence (Node)) then
2657                Write_Indent_Str ("begin");
2658                Sprint_Node (Handled_Statement_Sequence (Node));
2659             end if;
2660
2661             Write_Indent_Str ("end ");
2662             Sprint_End_Label
2663               (Handled_Statement_Sequence (Node), Defining_Unit_Name (Node));
2664             Write_Char (';');
2665
2666          when N_Package_Body_Stub =>
2667             Write_Indent_Str_Sloc ("package body ");
2668             Sprint_Node (Defining_Identifier (Node));
2669             Write_Str_With_Col_Check (" is separate;");
2670
2671          when N_Package_Declaration =>
2672             Extra_Blank_Line;
2673             Write_Indent;
2674             Sprint_Node_Sloc (Specification (Node));
2675             Write_Char (';');
2676
2677             --  If this is an instantiation, get the aspects from the original
2678             --  instantiation node.
2679
2680             if Is_Generic_Instance (Defining_Entity (Node))
2681               and then Has_Aspects
2682                          (Package_Instantiation (Defining_Entity (Node)))
2683             then
2684                Sprint_Aspect_Specifications
2685                  (Package_Instantiation (Defining_Entity (Node)),
2686                    Semicolon => True);
2687             end if;
2688
2689          when N_Package_Instantiation =>
2690             Extra_Blank_Line;
2691             Write_Indent_Str_Sloc ("package ");
2692             Sprint_Node (Defining_Unit_Name (Node));
2693             Write_Str (" is new ");
2694             Sprint_Node (Name (Node));
2695             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2696             Write_Char (';');
2697
2698          when N_Package_Renaming_Declaration =>
2699             Write_Indent_Str_Sloc ("package ");
2700             Sprint_Node (Defining_Unit_Name (Node));
2701             Write_Str_With_Col_Check (" renames ");
2702             Sprint_Node (Name (Node));
2703             Write_Char (';');
2704
2705          when N_Package_Specification =>
2706             Write_Str_With_Col_Check_Sloc ("package ");
2707             Sprint_Node (Defining_Unit_Name (Node));
2708
2709             if Nkind (Parent (Node)) = N_Generic_Package_Declaration
2710               and then Has_Aspects (Parent (Node))
2711             then
2712                Sprint_Aspect_Specifications
2713                  (Parent (Node), Semicolon => False);
2714
2715             --  An instantiation is rewritten as a package declaration, but
2716             --  the aspects belong to the instantiation node.
2717
2718             elsif Nkind (Parent (Node)) = N_Package_Declaration then
2719                declare
2720                   Pack : constant Entity_Id := Defining_Entity (Node);
2721
2722                begin
2723                   if not Is_Generic_Instance (Pack) then
2724                      if Has_Aspects (Parent (Node)) then
2725                         Sprint_Aspect_Specifications
2726                           (Parent (Node), Semicolon => False);
2727                      end if;
2728                   end if;
2729                end;
2730             end if;
2731
2732             Write_Str (" is");
2733             Sprint_Indented_List (Visible_Declarations (Node));
2734
2735             if Present (Private_Declarations (Node)) then
2736                Write_Indent_Str ("private");
2737                Sprint_Indented_List (Private_Declarations (Node));
2738             end if;
2739
2740             Write_Indent_Str ("end ");
2741             Sprint_Node (Defining_Unit_Name (Node));
2742
2743          when N_Parameter_Association =>
2744             Sprint_Node_Sloc (Selector_Name (Node));
2745             Write_Str (" => ");
2746             Sprint_Node (Explicit_Actual_Parameter (Node));
2747
2748          when N_Parameter_Specification =>
2749             Set_Debug_Sloc;
2750
2751             if Write_Identifiers (Node) then
2752                Write_Str (" : ");
2753
2754                if In_Present (Node) then
2755                   Write_Str_With_Col_Check ("in ");
2756                end if;
2757
2758                if Out_Present (Node) then
2759                   Write_Str_With_Col_Check ("out ");
2760                end if;
2761
2762                --  Ada 2005 (AI-231): Parameter specification may carry null
2763                --  exclusion. Do not print it now if this is an access formal,
2764                --  it is emitted when the access definition is displayed.
2765
2766                if Null_Exclusion_Present (Node)
2767                  and then Nkind (Parameter_Type (Node)) /= N_Access_Definition
2768                then
2769                   Write_Str ("not null ");
2770                end if;
2771
2772                if Aliased_Present (Node) then
2773                   Write_Str ("aliased ");
2774                end if;
2775
2776                Sprint_Node (Parameter_Type (Node));
2777
2778                if Present (Expression (Node)) then
2779                   Write_Str (" := ");
2780                   Sprint_Node (Expression (Node));
2781                end if;
2782             else
2783                Write_Str (", ");
2784             end if;
2785
2786          when N_Pop_Constraint_Error_Label =>
2787             Write_Indent_Str ("%pop_constraint_error_label");
2788
2789          when N_Pop_Program_Error_Label =>
2790             Write_Indent_Str ("%pop_program_error_label");
2791
2792          when N_Pop_Storage_Error_Label =>
2793             Write_Indent_Str ("%pop_storage_error_label");
2794
2795          when N_Private_Extension_Declaration =>
2796             Write_Indent_Str_Sloc ("type ");
2797             Write_Id (Defining_Identifier (Node));
2798
2799             if Present (Discriminant_Specifications (Node)) then
2800                Write_Discr_Specs (Node);
2801             elsif Unknown_Discriminants_Present (Node) then
2802                Write_Str_With_Col_Check ("(<>)");
2803             end if;
2804
2805             Write_Str_With_Col_Check (" is new ");
2806             Sprint_Node (Subtype_Indication (Node));
2807
2808             if Present (Interface_List (Node)) then
2809                Write_Str_With_Col_Check (" and ");
2810                Sprint_And_List (Interface_List (Node));
2811             end if;
2812
2813             Write_Str_With_Col_Check (" with private;");
2814
2815          when N_Private_Type_Declaration =>
2816             Write_Indent_Str_Sloc ("type ");
2817             Write_Id (Defining_Identifier (Node));
2818
2819             if Present (Discriminant_Specifications (Node)) then
2820                Write_Discr_Specs (Node);
2821             elsif Unknown_Discriminants_Present (Node) then
2822                Write_Str_With_Col_Check ("(<>)");
2823             end if;
2824
2825             Write_Str (" is ");
2826
2827             if Tagged_Present (Node) then
2828                Write_Str_With_Col_Check ("tagged ");
2829             end if;
2830
2831             if Limited_Present (Node) then
2832                Write_Str_With_Col_Check ("limited ");
2833             end if;
2834
2835             Write_Str_With_Col_Check ("private;");
2836
2837          when N_Push_Constraint_Error_Label =>
2838             Write_Indent_Str ("%push_constraint_error_label (");
2839
2840             if Present (Exception_Label (Node)) then
2841                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2842             end if;
2843
2844             Write_Str (")");
2845
2846          when N_Push_Program_Error_Label =>
2847             Write_Indent_Str ("%push_program_error_label (");
2848
2849             if Present (Exception_Label (Node)) then
2850                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2851             end if;
2852
2853             Write_Str (")");
2854
2855          when N_Push_Storage_Error_Label =>
2856             Write_Indent_Str ("%push_storage_error_label (");
2857
2858             if Present (Exception_Label (Node)) then
2859                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2860             end if;
2861
2862             Write_Str (")");
2863
2864          when N_Pragma =>
2865             Write_Indent_Str_Sloc ("pragma ");
2866             Write_Name_With_Col_Check (Pragma_Name_Unmapped (Node));
2867
2868             if Present (Pragma_Argument_Associations (Node)) then
2869                Sprint_Opt_Paren_Comma_List
2870                  (Pragma_Argument_Associations (Node));
2871             end if;
2872
2873             Write_Char (';');
2874
2875          when N_Pragma_Argument_Association =>
2876             Set_Debug_Sloc;
2877
2878             if Chars (Node) /= No_Name then
2879                Write_Name_With_Col_Check (Chars (Node));
2880                Write_Str (" => ");
2881             end if;
2882
2883             Sprint_Node (Expression (Node));
2884
2885          when N_Procedure_Call_Statement =>
2886             Write_Indent;
2887             Set_Debug_Sloc;
2888             Write_Subprogram_Name (Name (Node));
2889             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
2890             Write_Char (';');
2891
2892          when N_Procedure_Instantiation =>
2893             Write_Indent_Str_Sloc ("procedure ");
2894             Sprint_Node (Defining_Unit_Name (Node));
2895             Write_Str_With_Col_Check (" is new ");
2896             Sprint_Node (Name (Node));
2897             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2898             Write_Char (';');
2899
2900          when N_Procedure_Specification =>
2901             Write_Str_With_Col_Check_Sloc ("procedure ");
2902             Sprint_Node (Defining_Unit_Name (Node));
2903             Write_Param_Specs (Node);
2904
2905          when N_Protected_Body =>
2906             Write_Indent_Str_Sloc ("protected body ");
2907             Write_Id (Defining_Identifier (Node));
2908             Write_Str (" is");
2909             Sprint_Indented_List (Declarations (Node));
2910             Write_Indent_Str ("end ");
2911             Write_Id (Defining_Identifier (Node));
2912             Write_Char (';');
2913
2914          when N_Protected_Body_Stub =>
2915             Write_Indent_Str_Sloc ("protected body ");
2916             Write_Id (Defining_Identifier (Node));
2917             Write_Str_With_Col_Check (" is separate;");
2918
2919          when N_Protected_Definition =>
2920             Set_Debug_Sloc;
2921             Sprint_Indented_List (Visible_Declarations (Node));
2922
2923             if Present (Private_Declarations (Node)) then
2924                Write_Indent_Str ("private");
2925                Sprint_Indented_List (Private_Declarations (Node));
2926             end if;
2927
2928             Write_Indent_Str ("end ");
2929
2930          when N_Protected_Type_Declaration =>
2931             Write_Indent_Str_Sloc ("protected type ");
2932             Sprint_Node (Defining_Identifier (Node));
2933             Write_Discr_Specs (Node);
2934
2935             if Present (Interface_List (Node)) then
2936                Write_Str (" is new ");
2937                Sprint_And_List (Interface_List (Node));
2938                Write_Str (" with ");
2939             else
2940                Write_Str (" is");
2941             end if;
2942
2943             Sprint_Node (Protected_Definition (Node));
2944             Write_Id (Defining_Identifier (Node));
2945             Write_Char (';');
2946
2947          when N_Qualified_Expression =>
2948             Sprint_Node (Subtype_Mark (Node));
2949             Write_Char_Sloc (''');
2950
2951             --  Print expression, make sure we have at least one level of
2952             --  parentheses around the expression. For cases of qualified
2953             --  expressions in the source, this is always the case, but
2954             --  for generated qualifications, there may be no explicit
2955             --  parentheses present.
2956
2957             if Paren_Count (Expression (Node)) /= 0 then
2958                Sprint_Node (Expression (Node));
2959
2960             else
2961                Write_Char ('(');
2962                Sprint_Node (Expression (Node));
2963
2964                --  Odd case, for the qualified expressions used in machine
2965                --  code the argument may be a procedure call, resulting in
2966                --  a junk semicolon before the right parent, get rid of it.
2967
2968                Write_Erase_Char (';');
2969
2970                --  Now we can add the terminating right paren
2971
2972                Write_Char (')');
2973             end if;
2974
2975          when N_Quantified_Expression =>
2976             Write_Str (" for");
2977
2978             if All_Present (Node) then
2979                Write_Str (" all ");
2980             else
2981                Write_Str (" some ");
2982             end if;
2983
2984             if Present (Iterator_Specification (Node)) then
2985                Sprint_Node (Iterator_Specification (Node));
2986             else
2987                Sprint_Node (Loop_Parameter_Specification (Node));
2988             end if;
2989
2990             Write_Str (" => ");
2991             Sprint_Node (Condition (Node));
2992
2993          when N_Raise_Expression =>
2994             declare
2995                Has_Parens : constant Boolean := Paren_Count (Node) > 0;
2996
2997             begin
2998                --  The syntax for raise_expression does not include parentheses
2999                --  but sometimes parentheses are required, so unconditionally
3000                --  generate them here unless already present.
3001
3002                if not Has_Parens then
3003                   Write_Char ('(');
3004                end if;
3005
3006                Write_Str_With_Col_Check_Sloc ("raise ");
3007                Sprint_Node (Name (Node));
3008
3009                if Present (Expression (Node)) then
3010                   Write_Str_With_Col_Check (" with ");
3011                   Sprint_Node (Expression (Node));
3012                end if;
3013
3014                if not Has_Parens then
3015                   Write_Char (')');
3016                end if;
3017             end;
3018
3019          when N_Raise_Constraint_Error =>
3020
3021             --  This node can be used either as a subexpression or as a
3022             --  statement form. The following test is a reasonably reliable
3023             --  way to distinguish the two cases.
3024
3025             if Is_List_Member (Node)
3026               and then Nkind (Parent (Node)) not in N_Subexpr
3027             then
3028                Write_Indent;
3029             end if;
3030
3031             Write_Str_With_Col_Check_Sloc ("[constraint_error");
3032             Write_Condition_And_Reason (Node);
3033
3034          when N_Raise_Program_Error =>
3035
3036             --  This node can be used either as a subexpression or as a
3037             --  statement form. The following test is a reasonably reliable
3038             --  way to distinguish the two cases.
3039
3040             if Is_List_Member (Node)
3041               and then Nkind (Parent (Node)) not in N_Subexpr
3042             then
3043                Write_Indent;
3044             end if;
3045
3046             Write_Str_With_Col_Check_Sloc ("[program_error");
3047             Write_Condition_And_Reason (Node);
3048
3049          when N_Raise_Storage_Error =>
3050
3051             --  This node can be used either as a subexpression or as a
3052             --  statement form. The following test is a reasonably reliable
3053             --  way to distinguish the two cases.
3054
3055             if Is_List_Member (Node)
3056               and then Nkind (Parent (Node)) not in N_Subexpr
3057             then
3058                Write_Indent;
3059             end if;
3060
3061             Write_Str_With_Col_Check_Sloc ("[storage_error");
3062             Write_Condition_And_Reason (Node);
3063
3064          when N_Raise_Statement =>
3065             Write_Indent_Str_Sloc ("raise ");
3066             Sprint_Node (Name (Node));
3067
3068             if Present (Expression (Node)) then
3069                Write_Str_With_Col_Check_Sloc (" with ");
3070                Sprint_Node (Expression (Node));
3071             end if;
3072
3073             Write_Char (';');
3074
3075          when N_Raise_When_Statement =>
3076             Write_Indent_Str_Sloc ("raise ");
3077             Sprint_Node (Name (Node));
3078             Write_Str (" when ");
3079             Sprint_Node (Condition (Node));
3080
3081             if Present (Expression (Node)) then
3082                Write_Str_With_Col_Check_Sloc (" with ");
3083                Sprint_Node (Expression (Node));
3084             end if;
3085
3086             Write_Char (';');
3087
3088          when N_Range =>
3089             Sprint_Node (Low_Bound (Node));
3090             Write_Str_Sloc (" .. ");
3091             if Present (Etype (Node))
3092               and then Is_Fixed_Lower_Bound_Index_Subtype (Etype (Node))
3093             then
3094                Write_Str ("<>");
3095             else
3096                Sprint_Node (High_Bound (Node));
3097             end if;
3098             Update_Itype (Node);
3099
3100          when N_Range_Constraint =>
3101             Write_Str_With_Col_Check_Sloc ("range ");
3102             Sprint_Node (Range_Expression (Node));
3103
3104          when N_Real_Literal =>
3105             Write_Ureal_With_Col_Check_Sloc (Realval (Node));
3106
3107          when N_Real_Range_Specification =>
3108             Write_Str_With_Col_Check_Sloc ("range ");
3109             Sprint_Node (Low_Bound (Node));
3110             Write_Str (" .. ");
3111             Sprint_Node (High_Bound (Node));
3112
3113          when N_Record_Definition =>
3114             if Abstract_Present (Node) then
3115                Write_Str_With_Col_Check ("abstract ");
3116             end if;
3117
3118             if Tagged_Present (Node) then
3119                Write_Str_With_Col_Check ("tagged ");
3120             end if;
3121
3122             if Limited_Present (Node) then
3123                Write_Str_With_Col_Check ("limited ");
3124             end if;
3125
3126             if Null_Present (Node) then
3127                Write_Str_With_Col_Check_Sloc ("null record");
3128
3129             else
3130                Write_Str_With_Col_Check_Sloc ("record");
3131                Sprint_Node (Component_List (Node));
3132                Write_Indent_Str ("end record");
3133             end if;
3134
3135          when N_Record_Representation_Clause =>
3136             Write_Indent_Str_Sloc ("for ");
3137             Sprint_Node (Identifier (Node));
3138             Write_Str_With_Col_Check (" use record ");
3139
3140             if Present (Mod_Clause (Node)) then
3141                Sprint_Node (Mod_Clause (Node));
3142             end if;
3143
3144             Sprint_Indented_List (Component_Clauses (Node));
3145             Write_Indent_Str ("end record;");
3146
3147          when N_Reference =>
3148             Sprint_Node (Prefix (Node));
3149             Write_Str_With_Col_Check_Sloc ("'reference");
3150
3151          when N_Requeue_Statement =>
3152             Write_Indent_Str_Sloc ("requeue ");
3153             Sprint_Node (Name (Node));
3154
3155             if Abort_Present (Node) then
3156                Write_Str_With_Col_Check (" with abort");
3157             end if;
3158
3159             Write_Char (';');
3160
3161          when N_Return_When_Statement =>
3162             Write_Indent_Str_Sloc ("return ");
3163             Sprint_Node (Expression (Node));
3164             Write_Str (" when ");
3165             Sprint_Node (Condition (Node));
3166             Write_Char (';');
3167
3168          when N_SCIL_Dispatch_Table_Tag_Init =>
3169             Write_Indent_Str ("[N_SCIL_Dispatch_Table_Tag_Init]");
3170
3171          when N_SCIL_Dispatching_Call =>
3172             Write_Indent_Str ("[N_SCIL_Dispatching_Node]");
3173
3174          when N_SCIL_Membership_Test =>
3175             Write_Indent_Str ("[N_SCIL_Membership_Test]");
3176
3177          when N_Simple_Return_Statement =>
3178             if Present (Expression (Node)) then
3179                Write_Indent_Str_Sloc ("return ");
3180                Sprint_Node (Expression (Node));
3181                Write_Char (';');
3182             else
3183                Write_Indent_Str_Sloc ("return;");
3184             end if;
3185
3186          when N_Selective_Accept =>
3187             Write_Indent_Str_Sloc ("select");
3188
3189             declare
3190                Alt_Node : Node_Id;
3191             begin
3192                Alt_Node := First (Select_Alternatives (Node));
3193                loop
3194                   Indent_Begin;
3195                   Sprint_Node (Alt_Node);
3196                   Indent_End;
3197                   Next (Alt_Node);
3198                   exit when No (Alt_Node);
3199                   Write_Indent_Str ("or");
3200                end loop;
3201             end;
3202
3203             if Present (Else_Statements (Node)) then
3204                Write_Indent_Str ("else");
3205                Sprint_Indented_List (Else_Statements (Node));
3206             end if;
3207
3208             Write_Indent_Str ("end select;");
3209
3210          when N_Signed_Integer_Type_Definition =>
3211             Write_Str_With_Col_Check_Sloc ("range ");
3212             Sprint_Node (Low_Bound (Node));
3213             Write_Str (" .. ");
3214             Sprint_Node (High_Bound (Node));
3215
3216          when N_Single_Protected_Declaration =>
3217             Write_Indent_Str_Sloc ("protected ");
3218             Write_Id (Defining_Identifier (Node));
3219             Write_Str (" is");
3220             Sprint_Node (Protected_Definition (Node));
3221             Write_Id (Defining_Identifier (Node));
3222             Write_Char (';');
3223
3224          when N_Single_Task_Declaration =>
3225             Write_Indent_Str_Sloc ("task ");
3226             Sprint_Node (Defining_Identifier (Node));
3227
3228             if Present (Task_Definition (Node)) then
3229                Write_Str (" is");
3230                Sprint_Node (Task_Definition (Node));
3231             end if;
3232
3233             Write_Char (';');
3234
3235          when N_Selected_Component =>
3236             Sprint_Node (Prefix (Node));
3237             Write_Char_Sloc ('.');
3238             Sprint_Node (Selector_Name (Node));
3239
3240          when N_Slice =>
3241             Set_Debug_Sloc;
3242             Sprint_Node (Prefix (Node));
3243             Write_Str_With_Col_Check (" (");
3244             Sprint_Node (Discrete_Range (Node));
3245             Write_Char (')');
3246
3247          when N_String_Literal =>
3248             if String_Length (Strval (Node)) + Column > Sprint_Line_Limit then
3249                Write_Indent_Str ("  ");
3250             end if;
3251
3252             Set_Debug_Sloc;
3253             Write_String_Table_Entry (Strval (Node));
3254
3255          when N_Subprogram_Body =>
3256
3257             --  Output extra blank line unless we are in freeze actions
3258
3259             if Freeze_Indent = 0 then
3260                Extra_Blank_Line;
3261             end if;
3262
3263             Write_Indent;
3264
3265             if Present (Corresponding_Spec (Node)) then
3266                Sprint_Node_Sloc (Parent (Corresponding_Spec (Node)));
3267             else
3268                Sprint_Node_Sloc (Specification (Node));
3269             end if;
3270
3271             Write_Str (" is");
3272
3273             Sprint_Indented_List (Declarations (Node));
3274             Write_Indent_Str ("begin");
3275             Sprint_Node (Handled_Statement_Sequence (Node));
3276
3277             Write_Indent_Str ("end ");
3278
3279             Sprint_End_Label
3280               (Handled_Statement_Sequence (Node),
3281                  Defining_Unit_Name (Specification (Node)));
3282             Write_Char (';');
3283
3284             if Is_List_Member (Node)
3285               and then Present (Next (Node))
3286               and then Nkind (Next (Node)) /= N_Subprogram_Body
3287             then
3288                Write_Indent;
3289             end if;
3290
3291          when N_Subprogram_Body_Stub =>
3292             Write_Indent;
3293             Sprint_Node_Sloc (Specification (Node));
3294             Write_Str_With_Col_Check (" is separate;");
3295
3296          when N_Subprogram_Declaration =>
3297             Write_Indent;
3298             Sprint_Node_Sloc (Specification (Node));
3299
3300             if Nkind (Specification (Node)) = N_Procedure_Specification
3301               and then Null_Present (Specification (Node))
3302             then
3303                Write_Str_With_Col_Check (" is null");
3304             end if;
3305
3306             Write_Char (';');
3307
3308          when N_Subprogram_Renaming_Declaration =>
3309             Write_Indent;
3310             Sprint_Node (Specification (Node));
3311             Write_Str_With_Col_Check_Sloc (" renames ");
3312             Sprint_Node (Name (Node));
3313             Write_Char (';');
3314
3315          when N_Subtype_Declaration =>
3316             Write_Indent_Str_Sloc ("subtype ");
3317             Sprint_Node (Defining_Identifier (Node));
3318             Write_Str (" is ");
3319
3320             --  Ada 2005 (AI-231)
3321
3322             if Null_Exclusion_Present (Node) then
3323                Write_Str ("not null ");
3324             end if;
3325
3326             Sprint_Node (Subtype_Indication (Node));
3327             Write_Char (';');
3328
3329          when N_Subtype_Indication =>
3330             Sprint_Node_Sloc (Subtype_Mark (Node));
3331             Write_Char (' ');
3332             Sprint_Node (Constraint (Node));
3333
3334          when N_Subunit =>
3335             Write_Indent_Str_Sloc ("separate (");
3336             Sprint_Node (Name (Node));
3337             Write_Char (')');
3338             Extra_Blank_Line;
3339             Sprint_Node (Proper_Body (Node));
3340
3341          when N_Target_Name =>
3342             Write_Char ('@');
3343
3344          when N_Task_Body =>
3345             Write_Indent_Str_Sloc ("task body ");
3346             Write_Id (Defining_Identifier (Node));
3347             Write_Str (" is");
3348             Sprint_Indented_List (Declarations (Node));
3349             Write_Indent_Str ("begin");
3350             Sprint_Node (Handled_Statement_Sequence (Node));
3351             Write_Indent_Str ("end ");
3352             Sprint_End_Label
3353               (Handled_Statement_Sequence (Node), Defining_Identifier (Node));
3354             Write_Char (';');
3355
3356          when N_Task_Body_Stub =>
3357             Write_Indent_Str_Sloc ("task body ");
3358             Write_Id (Defining_Identifier (Node));
3359             Write_Str_With_Col_Check (" is separate;");
3360
3361          when N_Task_Definition =>
3362             Set_Debug_Sloc;
3363             Sprint_Indented_List (Visible_Declarations (Node));
3364
3365             if Present (Private_Declarations (Node)) then
3366                Write_Indent_Str ("private");
3367                Sprint_Indented_List (Private_Declarations (Node));
3368             end if;
3369
3370             Write_Indent_Str ("end ");
3371             Sprint_End_Label (Node, Defining_Identifier (Parent (Node)));
3372
3373          when N_Task_Type_Declaration =>
3374             Write_Indent_Str_Sloc ("task type ");
3375             Sprint_Node (Defining_Identifier (Node));
3376             Write_Discr_Specs (Node);
3377
3378             if Present (Interface_List (Node)) then
3379                Write_Str (" is new ");
3380                Sprint_And_List (Interface_List (Node));
3381             end if;
3382
3383             if Present (Task_Definition (Node)) then
3384                if No (Interface_List (Node)) then
3385                   Write_Str (" is");
3386                else
3387                   Write_Str (" with ");
3388                end if;
3389
3390                Sprint_Node (Task_Definition (Node));
3391             end if;
3392
3393             Write_Char (';');
3394
3395          when N_Terminate_Alternative =>
3396             Sprint_Node_List (Pragmas_Before (Node));
3397             Write_Indent;
3398
3399             if Present (Condition (Node)) then
3400                Write_Str_With_Col_Check ("when ");
3401                Sprint_Node (Condition (Node));
3402                Write_Str (" => ");
3403             end if;
3404
3405             Write_Str_With_Col_Check_Sloc ("terminate;");
3406             Sprint_Node_List (Pragmas_After (Node));
3407
3408          when N_Timed_Entry_Call =>
3409             Write_Indent_Str_Sloc ("select");
3410             Indent_Begin;
3411             Sprint_Node (Entry_Call_Alternative (Node));
3412             Indent_End;
3413             Write_Indent_Str ("or");
3414             Indent_Begin;
3415             Sprint_Node (Delay_Alternative (Node));
3416             Indent_End;
3417             Write_Indent_Str ("end select;");
3418
3419          when N_Triggering_Alternative =>
3420             Sprint_Node_List (Pragmas_Before (Node));
3421             Sprint_Node_Sloc (Triggering_Statement (Node));
3422             Sprint_Node_List (Statements (Node));
3423
3424          when N_Type_Conversion =>
3425             Set_Debug_Sloc;
3426             Sprint_Node (Subtype_Mark (Node));
3427             Col_Check (4);
3428
3429             if Conversion_OK (Node) then
3430                Write_Char ('?');
3431             end if;
3432
3433             if Float_Truncate (Node) then
3434                Write_Char ('^');
3435             end if;
3436
3437             if Rounded_Result (Node) then
3438                Write_Char ('@');
3439             end if;
3440
3441             Write_Char ('(');
3442             Sprint_Node (Expression (Node));
3443             Write_Char (')');
3444
3445          when N_Unchecked_Expression =>
3446             Col_Check (10);
3447             Write_Str ("`(");
3448             Sprint_Node_Sloc (Expression (Node));
3449             Write_Char (')');
3450
3451          when N_Unchecked_Type_Conversion =>
3452             Sprint_Node (Subtype_Mark (Node));
3453             Write_Char ('!');
3454             Write_Str_With_Col_Check ("(");
3455             Sprint_Node_Sloc (Expression (Node));
3456             Write_Char (')');
3457
3458          when N_Unconstrained_Array_Definition =>
3459             Write_Str_With_Col_Check_Sloc ("array (");
3460
3461             declare
3462                Node1 : Node_Id;
3463             begin
3464                Node1 := First (Subtype_Marks (Node));
3465                loop
3466                   Sprint_Node (Node1);
3467                   Write_Str_With_Col_Check (" range <>");
3468                   Next (Node1);
3469                   exit when Node1 = Empty;
3470                   Write_Str (", ");
3471                end loop;
3472             end;
3473
3474             Write_Str (") of ");
3475             Sprint_Node (Component_Definition (Node));
3476
3477          when N_Unused_At_Start | N_Unused_At_End =>
3478             Write_Indent_Str ("***** Error, unused node encountered *****");
3479             Write_Eol;
3480
3481          when N_Use_Package_Clause =>
3482             Write_Indent_Str_Sloc ("use ");
3483             Sprint_Node_Sloc (Name (Node));
3484             Write_Char (';');
3485
3486          when N_Use_Type_Clause =>
3487             Write_Indent_Str_Sloc ("use type ");
3488             Sprint_Node_Sloc (Subtype_Mark (Node));
3489             Write_Char (';');
3490
3491          when N_Validate_Unchecked_Conversion =>
3492             Write_Indent_Str_Sloc ("validate unchecked_conversion (");
3493             Sprint_Node (Source_Type (Node));
3494             Write_Str (", ");
3495             Sprint_Node (Target_Type (Node));
3496             Write_Str (");");
3497
3498          when N_Variable_Reference_Marker =>
3499             null;
3500
3501             --  Enable the following code for debugging purposes only
3502
3503             --  if Is_Read (Node) and then Is_Write (Node) then
3504             --     Write_Indent_Str ("rw#");
3505
3506             --  elsif Is_Read (Node) then
3507             --     Write_Indent_Str ("r#");
3508
3509             --  else
3510             --     pragma Assert (Is_Write (Node));
3511             --     Write_Indent_Str ("w#");
3512             --  end if;
3513
3514             --  Write_Id (Target (Node));
3515             --  Write_Char ('#');
3516
3517          when N_Variant =>
3518             Write_Indent_Str_Sloc ("when ");
3519             Sprint_Bar_List (Discrete_Choices (Node));
3520             Write_Str (" => ");
3521             Sprint_Node (Component_List (Node));
3522
3523          when N_Variant_Part =>
3524             Indent_Begin;
3525             Write_Indent_Str_Sloc ("case ");
3526             Sprint_Node (Name (Node));
3527             Write_Str (" is ");
3528             Sprint_Indented_List (Variants (Node));
3529             Write_Indent_Str ("end case");
3530             Indent_End;
3531
3532          when N_With_Clause =>
3533
3534             --  Special test, if we are dumping the original tree only,
3535             --  then we want to eliminate the bogus with clauses that
3536             --  correspond to the non-existent children of Text_IO.
3537
3538             if Dump_Original_Only
3539               and then Is_Text_IO_Special_Unit (Name (Node))
3540             then
3541                null;
3542
3543             --  Normal case, output the with clause
3544
3545             else
3546                if First_Name (Node) or else not Dump_Original_Only then
3547
3548                   --  Ada 2005 (AI-50217): Print limited with_clauses
3549
3550                   if Private_Present (Node) and Limited_Present (Node) then
3551                      Write_Indent_Str ("limited private with ");
3552
3553                   elsif Private_Present (Node) then
3554                      Write_Indent_Str ("private with ");
3555
3556                   elsif Limited_Present (Node) then
3557                      Write_Indent_Str ("limited with ");
3558
3559                   else
3560                      Write_Indent_Str ("with ");
3561                   end if;
3562
3563                else
3564                   Write_Str (", ");
3565                end if;
3566
3567                Sprint_Node_Sloc (Name (Node));
3568
3569                if Last_Name (Node) or else not Dump_Original_Only then
3570                   Write_Char (';');
3571                end if;
3572             end if;
3573       end case;
3574
3575       --  Print aspects, except for special case of package declaration,
3576       --  where the aspects are printed inside the package specification.
3577
3578       if Has_Aspects (Node)
3579         and then Nkind (Node) not in
3580                    N_Generic_Package_Declaration | N_Package_Declaration
3581         and then not Is_Empty_List (Aspect_Specifications (Node))
3582       then
3583          Sprint_Aspect_Specifications (Node, Semicolon => True);
3584       end if;
3585
3586       if Nkind (Node) in N_Subexpr and then Do_Range_Check (Node) then
3587          Write_Str ("}");
3588       end if;
3589
3590       for J in 1 .. Paren_Count (Node) loop
3591          Write_Char (')');
3592       end loop;
3593
3594       Dump_Node := Save_Dump_Node;
3595    end Sprint_Node_Actual;
3596
3597    ----------------------
3598    -- Sprint_Node_List --
3599    ----------------------
3600
3601    procedure Sprint_Node_List (List : List_Id; New_Lines : Boolean := False) is
3602       Node : Node_Id;
3603
3604    begin
3605       if Is_Non_Empty_List (List) then
3606          Node := First (List);
3607
3608          loop
3609             Sprint_Node (Node);
3610             Next (Node);
3611             exit when Node = Empty;
3612          end loop;
3613       end if;
3614
3615       if New_Lines and then Column /= 1 then
3616          Write_Eol;
3617       end if;
3618    end Sprint_Node_List;
3619
3620    ----------------------
3621    -- Sprint_Node_Sloc --
3622    ----------------------
3623
3624    procedure Sprint_Node_Sloc (Node : Node_Id) is
3625    begin
3626       Sprint_Node (Node);
3627
3628       if Debug_Generated_Code and then Present (Dump_Node) then
3629          Set_Sloc (Dump_Node, Sloc (Node));
3630          Dump_Node := Empty;
3631       end if;
3632    end Sprint_Node_Sloc;
3633
3634    ---------------------
3635    -- Sprint_Opt_Node --
3636    ---------------------
3637
3638    procedure Sprint_Opt_Node (Node : Node_Id) is
3639    begin
3640       if Present (Node) then
3641          Write_Char (' ');
3642          Sprint_Node (Node);
3643       end if;
3644    end Sprint_Opt_Node;
3645
3646    --------------------------
3647    -- Sprint_Opt_Node_List --
3648    --------------------------
3649
3650    procedure Sprint_Opt_Node_List (List : List_Id) is
3651    begin
3652       if Present (List) then
3653          Sprint_Node_List (List);
3654       end if;
3655    end Sprint_Opt_Node_List;
3656
3657    ---------------------------------
3658    -- Sprint_Opt_Paren_Comma_List --
3659    ---------------------------------
3660
3661    procedure Sprint_Opt_Paren_Comma_List (List : List_Id) is
3662    begin
3663       if Is_Non_Empty_List (List) then
3664          Write_Char (' ');
3665          Sprint_Paren_Comma_List (List);
3666       end if;
3667    end Sprint_Opt_Paren_Comma_List;
3668
3669    -----------------------------
3670    -- Sprint_Paren_Comma_List --
3671    -----------------------------
3672
3673    procedure Sprint_Paren_Comma_List (List : List_Id) is
3674       N           : Node_Id;
3675       Node_Exists : Boolean := False;
3676
3677    begin
3678
3679       if Is_Non_Empty_List (List) then
3680
3681          if Dump_Original_Only then
3682             N := First (List);
3683             while Present (N) loop
3684                if not Is_Rewrite_Insertion (N) then
3685                   Node_Exists := True;
3686                   exit;
3687                end if;
3688
3689                Next (N);
3690             end loop;
3691
3692             if not Node_Exists then
3693                return;
3694             end if;
3695          end if;
3696
3697          Write_Str_With_Col_Check ("(");
3698          Sprint_Comma_List (List);
3699          Write_Char (')');
3700       end if;
3701    end Sprint_Paren_Comma_List;
3702
3703    ----------------------
3704    -- Sprint_Right_Opnd --
3705    ----------------------
3706
3707    procedure Sprint_Right_Opnd (N : Node_Id) is
3708       Opnd : constant Node_Id := Right_Opnd (N);
3709
3710    begin
3711       if Paren_Count (Opnd) /= 0
3712         or else Op_Prec (Nkind (Opnd)) > Op_Prec (Nkind (N))
3713       then
3714          Sprint_Node (Opnd);
3715
3716       else
3717          Write_Char ('(');
3718          Sprint_Node (Opnd);
3719          Write_Char (')');
3720       end if;
3721    end Sprint_Right_Opnd;
3722
3723    ------------------
3724    -- Update_Itype --
3725    ------------------
3726
3727    procedure Update_Itype (Node : Node_Id) is
3728    begin
3729       if Present (Etype (Node))
3730         and then Is_Itype (Etype (Node))
3731         and then Debug_Generated_Code
3732       then
3733          Set_Sloc (Etype (Node), Sloc (Node));
3734       end if;
3735    end Update_Itype;
3736
3737    ---------------------
3738    -- Write_Char_Sloc --
3739    ---------------------
3740
3741    procedure Write_Char_Sloc (C : Character) is
3742    begin
3743       if Debug_Generated_Code and then C /= ' ' then
3744          Set_Debug_Sloc;
3745       end if;
3746
3747       Write_Char (C);
3748    end Write_Char_Sloc;
3749
3750    --------------------------------
3751    -- Write_Condition_And_Reason --
3752    --------------------------------
3753
3754    procedure Write_Condition_And_Reason (Node : Node_Id) is
3755       Cond  : constant Node_Id := Condition (Node);
3756       Image : constant String  := RT_Exception_Code'Image
3757                                     (RT_Exception_Code'Val
3758                                        (UI_To_Int (Reason (Node))));
3759
3760    begin
3761       if Present (Cond) then
3762
3763          --  If condition is a single entity, or NOT with a single entity,
3764          --  output all on one line, since it will likely fit just fine.
3765
3766          if Is_Entity_Name (Cond)
3767            or else (Nkind (Cond) = N_Op_Not
3768                      and then Is_Entity_Name (Right_Opnd (Cond)))
3769          then
3770             Write_Str_With_Col_Check (" when ");
3771             Sprint_Node (Cond);
3772             Write_Char (' ');
3773
3774             --  Otherwise for more complex condition, multiple lines
3775
3776          else
3777             Write_Str_With_Col_Check (" when");
3778             Indent := Indent + 2;
3779             Write_Indent;
3780             Sprint_Node (Cond);
3781             Write_Indent;
3782             Indent := Indent - 2;
3783          end if;
3784
3785       --  If no condition, just need a space (all on one line)
3786
3787       else
3788          Write_Char (' ');
3789       end if;
3790
3791       --  Write the reason
3792
3793       Write_Char ('"');
3794
3795       for J in 4 .. Image'Last loop
3796          if Image (J) = '_' then
3797             Write_Char (' ');
3798          else
3799             Write_Char (Fold_Lower (Image (J)));
3800          end if;
3801       end loop;
3802
3803       Write_Str ("""]");
3804    end Write_Condition_And_Reason;
3805
3806    --------------------------------
3807    -- Write_Corresponding_Source --
3808    --------------------------------
3809
3810    procedure Write_Corresponding_Source (S : String) is
3811       Loc : Source_Ptr;
3812       Src : Source_Buffer_Ptr;
3813
3814    begin
3815       --  Ignore if there is no current source file, or we're not in dump
3816       --  source text mode, or if in freeze actions.
3817
3818       if Current_Source_File > No_Source_File
3819         and then Dump_Source_Text
3820         and then Freeze_Indent = 0
3821       then
3822
3823          --  Ignore null string
3824
3825          if S = "" then
3826             return;
3827          end if;
3828
3829          --  Ignore space or semicolon at end of given string
3830
3831          if S (S'Last) = ' ' or else S (S'Last) = ';' then
3832             Write_Corresponding_Source (S (S'First .. S'Last - 1));
3833             return;
3834          end if;
3835
3836          --  Loop to look at next lines not yet printed in source file
3837
3838          for L in
3839            Last_Line_Printed + 1 .. Last_Source_Line (Current_Source_File)
3840          loop
3841             Src := Source_Text (Current_Source_File);
3842             Loc := Line_Start (L, Current_Source_File);
3843
3844             --  If comment, keep looking
3845
3846             if Src (Loc .. Loc + 1) = "--" then
3847                null;
3848
3849             --  Search to first non-blank
3850
3851             else
3852                while Src (Loc) not in Line_Terminator loop
3853
3854                   --  Non-blank found
3855
3856                   if Src (Loc) /= ' ' and then Src (Loc) /= ASCII.HT then
3857
3858                      --  Loop through characters in string to see if we match
3859
3860                      for J in S'Range loop
3861
3862                         --  If mismatch, then not the case we are looking for
3863
3864                         if Src (Loc) /= S (J) then
3865                            return;
3866                         end if;
3867
3868                         Loc := Loc + 1;
3869                      end loop;
3870
3871                      --  If we fall through, string matched, if white space or
3872                      --  semicolon after the matched string, this is the case
3873                      --  we are looking for.
3874
3875                      if Src (Loc) in Line_Terminator
3876                        or else Src (Loc) = ' '
3877                        or else Src (Loc) = ASCII.HT
3878                        or else Src (Loc) = ';'
3879                      then
3880                         --  So output source lines up to and including this one
3881
3882                         Write_Source_Lines (L);
3883                         return;
3884                      end if;
3885                   end if;
3886
3887                   Loc := Loc + 1;
3888                end loop;
3889             end if;
3890
3891          --  Line was all blanks, or a comment line, keep looking
3892
3893          end loop;
3894       end if;
3895    end Write_Corresponding_Source;
3896
3897    -----------------------
3898    -- Write_Discr_Specs --
3899    -----------------------
3900
3901    procedure Write_Discr_Specs (N : Node_Id) is
3902       Specs : List_Id;
3903       Spec  : Node_Id;
3904
3905    begin
3906       Specs := Discriminant_Specifications (N);
3907
3908       if Present (Specs) then
3909          Write_Str_With_Col_Check (" (");
3910          Spec := First (Specs);
3911
3912          loop
3913             Sprint_Node (Spec);
3914             Next (Spec);
3915             exit when Spec = Empty;
3916
3917             --  Add semicolon, unless we are printing original tree and the
3918             --  next specification is part of a list (but not the first
3919             --  element of that list)
3920
3921             if not Dump_Original_Only or else not Prev_Ids (Spec) then
3922                Write_Str ("; ");
3923             end if;
3924          end loop;
3925
3926          Write_Char (')');
3927       end if;
3928    end Write_Discr_Specs;
3929
3930    -----------------
3931    -- Write_Ekind --
3932    -----------------
3933
3934    procedure Write_Ekind (E : Entity_Id) is
3935       S : constant String := Entity_Kind'Image (Ekind (E));
3936
3937    begin
3938       Name_Len := S'Length;
3939       Name_Buffer (1 .. Name_Len) := S;
3940       Set_Casing (Mixed_Case);
3941       Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3942    end Write_Ekind;
3943
3944    --------------
3945    -- Write_Id --
3946    --------------
3947
3948    procedure Write_Id (N : Node_Id) is
3949    begin
3950       --  Deal with outputting Itype
3951
3952       --  Note: if we are printing the full tree with -gnatds, then we may
3953       --  end up picking up the Associated_Node link from a generic template
3954       --  here which overlaps the Entity field, but as documented, Write_Itype
3955       --  is defended against junk calls.
3956
3957       if Nkind (N) in N_Entity then
3958          Write_Itype (N);
3959       elsif Nkind (N) in N_Has_Entity then
3960          Write_Itype (Entity (N));
3961       end if;
3962
3963       --  Case of a defining identifier
3964
3965       if Nkind (N) = N_Defining_Identifier then
3966
3967          --  If defining identifier has an interface name (and no
3968          --  address clause), then we output the interface name.
3969
3970          if (Is_Imported (N) or else Is_Exported (N))
3971            and then Present (Interface_Name (N))
3972            and then No (Address_Clause (N))
3973          then
3974             String_To_Name_Buffer (Strval (Interface_Name (N)));
3975             Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3976
3977          --  If no interface name (or inactive because there was
3978          --  an address clause), then just output the Chars name.
3979
3980          else
3981             Write_Name_With_Col_Check (Chars (N));
3982          end if;
3983
3984       --  Case of selector of an expanded name where the expanded name
3985       --  has an associated entity, output this entity. Check that the
3986       --  entity or associated node is of the right kind, see above.
3987
3988       elsif Nkind (Parent (N)) = N_Expanded_Name
3989         and then Selector_Name (Parent (N)) = N
3990         and then Present (Entity_Or_Associated_Node (Parent (N)))
3991         and then Nkind (Entity (Parent (N))) in N_Entity
3992       then
3993          Write_Id (Entity (Parent (N)));
3994
3995       --  For any other node with an associated entity, output it
3996
3997       elsif Nkind (N) in N_Has_Entity
3998         and then Present (Entity_Or_Associated_Node (N))
3999         and then Nkind (Entity_Or_Associated_Node (N)) in N_Entity
4000       then
4001          Write_Id (Entity (N));
4002
4003       --  All other cases, we just print the Chars field
4004
4005       else
4006          Write_Name_With_Col_Check (Chars (N));
4007       end if;
4008    end Write_Id;
4009
4010    -----------------------
4011    -- Write_Identifiers --
4012    -----------------------
4013
4014    function Write_Identifiers (Node : Node_Id) return Boolean is
4015    begin
4016       Sprint_Node (Defining_Identifier (Node));
4017       Update_Itype (Defining_Identifier (Node));
4018
4019       --  The remainder of the declaration must be printed unless we are
4020       --  printing the original tree and this is not the last identifier
4021
4022       return
4023          not Dump_Original_Only or else not More_Ids (Node);
4024
4025    end Write_Identifiers;
4026
4027    ------------------------
4028    -- Write_Implicit_Def --
4029    ------------------------
4030
4031    procedure Write_Implicit_Def (E : Entity_Id) is
4032       Ind : Node_Id;
4033
4034    begin
4035       case Ekind (E) is
4036          when E_Array_Subtype =>
4037             Write_Str_With_Col_Check ("subtype ");
4038             Write_Id (E);
4039             Write_Str_With_Col_Check (" is ");
4040             Write_Id (Base_Type (E));
4041             Write_Str_With_Col_Check (" (");
4042
4043             Ind := First_Index (E);
4044             while Present (Ind) loop
4045                Sprint_Node (Ind);
4046                Next_Index (Ind);
4047
4048                if Present (Ind) then
4049                   Write_Str (", ");
4050                end if;
4051             end loop;
4052
4053             Write_Str (");");
4054
4055          when E_Enumeration_Subtype
4056             | E_Signed_Integer_Subtype
4057          =>
4058             Write_Str_With_Col_Check ("subtype ");
4059             Write_Id (E);
4060             Write_Str (" is ");
4061             Write_Id (Etype (E));
4062             Write_Str_With_Col_Check (" range ");
4063             Sprint_Node (Scalar_Range (E));
4064             Write_Str (";");
4065
4066          when others =>
4067             Write_Str_With_Col_Check ("type ");
4068             Write_Id (E);
4069             Write_Str_With_Col_Check (" is <");
4070             Write_Ekind (E);
4071             Write_Str (">;");
4072       end case;
4073    end Write_Implicit_Def;
4074
4075    ------------------
4076    -- Write_Indent --
4077    ------------------
4078
4079    procedure Write_Indent is
4080       Loc : constant Source_Ptr := Sloc (Dump_Node);
4081
4082    begin
4083       if Indent_Annull_Flag then
4084          Indent_Annull_Flag := False;
4085       else
4086          --  Deal with Dump_Source_Text output. Note that we ignore implicit
4087          --  label declarations, since they typically have the sloc of the
4088          --  corresponding label, which really messes up the -gnatL output.
4089
4090          if Dump_Source_Text
4091            and then Loc > No_Location
4092            and then Nkind (Dump_Node) /= N_Implicit_Label_Declaration
4093          then
4094             if Get_Source_File_Index (Loc) = Current_Source_File then
4095                Write_Source_Lines
4096                  (Get_Physical_Line_Number (Sloc (Dump_Node)));
4097             end if;
4098          end if;
4099
4100          Write_Eol;
4101
4102          for J in 1 .. Indent loop
4103             Write_Char (' ');
4104          end loop;
4105       end if;
4106    end Write_Indent;
4107
4108    ------------------------------
4109    -- Write_Indent_Identifiers --
4110    ------------------------------
4111
4112    function Write_Indent_Identifiers (Node : Node_Id) return Boolean is
4113    begin
4114       --  We need to start a new line for every node, except in the case
4115       --  where we are printing the original tree and this is not the first
4116       --  defining identifier in the list.
4117
4118       if not Dump_Original_Only or else not Prev_Ids (Node) then
4119          Write_Indent;
4120
4121       --  If printing original tree and this is not the first defining
4122       --  identifier in the list, then the previous call to this procedure
4123       --  printed only the name, and we add a comma to separate the names.
4124
4125       else
4126          Write_Str (", ");
4127       end if;
4128
4129       Sprint_Node (Defining_Identifier (Node));
4130
4131       --  The remainder of the declaration must be printed unless we are
4132       --  printing the original tree and this is not the last identifier
4133
4134       return
4135          not Dump_Original_Only or else not More_Ids (Node);
4136    end Write_Indent_Identifiers;
4137
4138    -----------------------------------
4139    -- Write_Indent_Identifiers_Sloc --
4140    -----------------------------------
4141
4142    function Write_Indent_Identifiers_Sloc (Node : Node_Id) return Boolean is
4143    begin
4144       --  We need to start a new line for every node, except in the case
4145       --  where we are printing the original tree and this is not the first
4146       --  defining identifier in the list.
4147
4148       if not Dump_Original_Only or else not Prev_Ids (Node) then
4149          Write_Indent;
4150
4151       --  If printing original tree and this is not the first defining
4152       --  identifier in the list, then the previous call to this procedure
4153       --  printed only the name, and we add a comma to separate the names.
4154
4155       else
4156          Write_Str (", ");
4157       end if;
4158
4159       Set_Debug_Sloc;
4160       Sprint_Node (Defining_Identifier (Node));
4161
4162       --  The remainder of the declaration must be printed unless we are
4163       --  printing the original tree and this is not the last identifier
4164
4165       return not Dump_Original_Only or else not More_Ids (Node);
4166    end Write_Indent_Identifiers_Sloc;
4167
4168    ----------------------
4169    -- Write_Indent_Str --
4170    ----------------------
4171
4172    procedure Write_Indent_Str (S : String) is
4173    begin
4174       Write_Corresponding_Source (S);
4175       Write_Indent;
4176       Write_Str (S);
4177    end Write_Indent_Str;
4178
4179    ---------------------------
4180    -- Write_Indent_Str_Sloc --
4181    ---------------------------
4182
4183    procedure Write_Indent_Str_Sloc (S : String) is
4184    begin
4185       Write_Corresponding_Source (S);
4186       Write_Indent;
4187       Write_Str_Sloc (S);
4188    end Write_Indent_Str_Sloc;
4189
4190    -----------------
4191    -- Write_Itype --
4192    -----------------
4193
4194    procedure Write_Itype (Typ : Entity_Id) is
4195
4196       procedure Write_Header (T : Boolean := True);
4197       --  Write type if T is True, subtype if T is false
4198
4199       ------------------
4200       -- Write_Header --
4201       ------------------
4202
4203       procedure Write_Header (T : Boolean := True) is
4204       begin
4205          if T then
4206             Write_Str ("[type ");
4207          else
4208             Write_Str ("[subtype ");
4209          end if;
4210
4211          Write_Name_With_Col_Check (Chars (Typ));
4212          Write_Str (" is ");
4213       end Write_Header;
4214
4215    --  Start of processing for Write_Itype
4216
4217    begin
4218       if Nkind (Typ) in N_Entity
4219         and then Is_Itype (Typ)
4220         and then not Itype_Printed (Typ)
4221       then
4222          --  Itype to be printed
4223
4224          declare
4225             B : constant Node_Id := Etype (Typ);
4226             P : constant Node_Id := Parent (Typ);
4227             S : constant Saved_Output_Buffer := Save_Output_Buffer;
4228             --  Save current output buffer
4229
4230             Old_Sloc : Source_Ptr;
4231             --  Save sloc of related node, so it is not modified when
4232             --  printing with -gnatD.
4233
4234             X : Node_Id;
4235
4236          begin
4237             --  Write indentation at start of line
4238
4239             for J in 1 .. Indent loop
4240                Write_Char (' ');
4241             end loop;
4242
4243             --  If we have a constructed declaration for the itype, print it
4244
4245             if Present (P)
4246               and then Nkind (P) in N_Declaration
4247               and then Defining_Entity (P) = Typ
4248             then
4249                --  We must set Itype_Printed true before the recursive call to
4250                --  print the node, otherwise we get an infinite recursion.
4251
4252                Set_Itype_Printed (Typ, True);
4253
4254                --  Write the declaration enclosed in [], avoiding new line
4255                --  at start of declaration, and semicolon at end.
4256
4257                --  Note: The itype may be imported from another unit, in which
4258                --  case we do not want to modify the Sloc of the declaration.
4259                --  Otherwise the itype may appear to be in the current unit,
4260                --  and the back-end will reject a reference out of scope.
4261
4262                Write_Char ('[');
4263                Indent_Annull_Flag := True;
4264                Old_Sloc := Sloc (P);
4265                Sprint_Node (P);
4266                Set_Sloc (P, Old_Sloc);
4267                Write_Erase_Char (';');
4268
4269             --  If no constructed declaration, then we have to concoct the
4270             --  source corresponding to the type entity that we have at hand.
4271
4272             else
4273                case Ekind (Typ) is
4274
4275                   --  Access types and subtypes
4276
4277                   when Access_Kind =>
4278                      Write_Header (Ekind (Typ) = E_Access_Type);
4279
4280                      if Can_Never_Be_Null (Typ) then
4281                         Write_Str ("not null ");
4282                      end if;
4283
4284                      Write_Str ("access ");
4285
4286                      if Is_Access_Constant (Typ) then
4287                         Write_Str ("constant ");
4288                      end if;
4289
4290                      Write_Id (Directly_Designated_Type (Typ));
4291
4292                   --  Array types
4293
4294                   when E_Array_Type =>
4295                      Write_Header;
4296                      Write_Str ("array (");
4297
4298                      X := First_Index (Typ);
4299                      loop
4300                         Sprint_Node (X);
4301
4302                         if not Is_Constrained (Typ) then
4303                            Write_Str (" range <>");
4304                         end if;
4305
4306                         Next_Index (X);
4307                         exit when No (X);
4308                         Write_Str (", ");
4309                      end loop;
4310
4311                      Write_Str (") of ");
4312                      X := Component_Type (Typ);
4313
4314                      --  Preserve sloc of component type, which is defined
4315                      --  elsewhere than the itype (see comment above).
4316
4317                      Old_Sloc := Sloc (X);
4318                      Sprint_Node (X);
4319                      Set_Sloc (X, Old_Sloc);
4320
4321                      --  Array subtypes
4322
4323                      --  Preserve Sloc of index subtypes, as above
4324
4325                   when E_Array_Subtype =>
4326                      Write_Header (False);
4327                      Write_Id (Etype (Typ));
4328                      Write_Str (" (");
4329
4330                      X := First_Index (Typ);
4331                      loop
4332                         Old_Sloc := Sloc (X);
4333                         Sprint_Node (X);
4334                         Set_Sloc (X, Old_Sloc);
4335                         Next_Index (X);
4336                         exit when No (X);
4337                         Write_Str (", ");
4338                      end loop;
4339
4340                      Write_Char (')');
4341
4342                   --  Signed integer types, and modular integer subtypes,
4343                   --  and also enumeration subtypes.
4344
4345                   when E_Enumeration_Subtype
4346                      | E_Modular_Integer_Subtype
4347                      | E_Signed_Integer_Subtype
4348                      | E_Signed_Integer_Type
4349                   =>
4350                      Write_Header (Ekind (Typ) = E_Signed_Integer_Type);
4351
4352                      if Ekind (Typ) = E_Signed_Integer_Type then
4353                         Write_Str ("new ");
4354                      end if;
4355
4356                      Write_Id (B);
4357
4358                      --  Print bounds if different from base type
4359
4360                      declare
4361                         L  : constant Node_Id := Type_Low_Bound (Typ);
4362                         H  : constant Node_Id := Type_High_Bound (Typ);
4363                         BL : Node_Id;
4364                         BH : Node_Id;
4365
4366                      begin
4367                         --  B can either be a scalar type, in which case the
4368                         --  declaration of Typ may constrain it with different
4369                         --  bounds, or a private type, in which case we know
4370                         --  that the declaration of Typ cannot have a scalar
4371                         --  constraint.
4372
4373                         if Is_Scalar_Type (B) then
4374                            BL := Type_Low_Bound (B);
4375                            BH := Type_High_Bound (B);
4376                         else
4377                            BL := Empty;
4378                            BH := Empty;
4379                         end if;
4380
4381                         if No (BL)
4382                           or else (True
4383                             and then Nkind (L) = N_Integer_Literal
4384                             and then Nkind (H) = N_Integer_Literal
4385                             and then Nkind (BL) = N_Integer_Literal
4386                             and then Nkind (BH) = N_Integer_Literal
4387                             and then UI_Eq (Intval (L), Intval (BL))
4388                             and then UI_Eq (Intval (H), Intval (BH)))
4389                         then
4390                            null;
4391
4392                         else
4393                            Write_Str (" range ");
4394                            Sprint_Node (L);
4395                            Write_Str (" .. ");
4396                            Sprint_Node (H);
4397                         end if;
4398                      end;
4399
4400                   --  Modular integer types
4401
4402                   when E_Modular_Integer_Type =>
4403                      Write_Header;
4404                      Write_Str ("mod ");
4405                      Write_Uint_With_Col_Check (Modulus (Typ), Auto);
4406
4407                   --  Floating-point types and subtypes
4408
4409                   when E_Floating_Point_Subtype
4410                      | E_Floating_Point_Type
4411                   =>
4412                      Write_Header (Ekind (Typ) = E_Floating_Point_Type);
4413
4414                      if Ekind (Typ) = E_Floating_Point_Type then
4415                         Write_Str ("new ");
4416                      end if;
4417
4418                      Write_Id (B);
4419
4420                      if Digits_Value (Typ) /= Digits_Value (B) then
4421                         Write_Str (" digits ");
4422                         Write_Uint_With_Col_Check
4423                           (Digits_Value (Typ), Decimal);
4424                      end if;
4425
4426                      --  Print bounds if not different from base type
4427
4428                      declare
4429                         L  : constant Node_Id := Type_Low_Bound (Typ);
4430                         H  : constant Node_Id := Type_High_Bound (Typ);
4431                         BL : constant Node_Id := Type_Low_Bound (B);
4432                         BH : constant Node_Id := Type_High_Bound (B);
4433
4434                      begin
4435                         if True
4436                           and then Nkind (L) = N_Real_Literal
4437                           and then Nkind (H) = N_Real_Literal
4438                           and then Nkind (BL) = N_Real_Literal
4439                           and then Nkind (BH) = N_Real_Literal
4440                           and then UR_Eq (Realval (L), Realval (BL))
4441                           and then UR_Eq (Realval (H), Realval (BH))
4442                         then
4443                            null;
4444
4445                         else
4446                            Write_Str (" range ");
4447                            Sprint_Node (L);
4448                            Write_Str (" .. ");
4449                            Sprint_Node (H);
4450                         end if;
4451                      end;
4452
4453                   --  Ordinary fixed-point types and subtypes
4454
4455                   when E_Ordinary_Fixed_Point_Subtype
4456                      | E_Ordinary_Fixed_Point_Type
4457                   =>
4458                      Write_Header (Ekind (Typ) = E_Ordinary_Fixed_Point_Type);
4459
4460                      Write_Str ("delta ");
4461                      Write_Ureal_With_Col_Check_Sloc (Delta_Value (Typ));
4462                      Write_Str (" range ");
4463                      Sprint_Node (Type_Low_Bound (Typ));
4464                      Write_Str (" .. ");
4465                      Sprint_Node (Type_High_Bound (Typ));
4466
4467                   --  Decimal fixed-point types and subtypes
4468
4469                   when E_Decimal_Fixed_Point_Subtype
4470                      | E_Decimal_Fixed_Point_Type
4471                   =>
4472                      Write_Header (Ekind (Typ) = E_Decimal_Fixed_Point_Type);
4473
4474                      Write_Str ("delta ");
4475                      Write_Ureal_With_Col_Check_Sloc (Delta_Value (Typ));
4476                      Write_Str (" digits ");
4477                      Write_Uint_With_Col_Check (Digits_Value (Typ), Decimal);
4478
4479                   --  Record subtypes
4480
4481                   when E_Record_Subtype
4482                      | E_Record_Subtype_With_Private
4483                   =>
4484                      Write_Header (False);
4485                      Write_Str ("record");
4486                      Indent_Begin;
4487
4488                      declare
4489                         C : Entity_Id;
4490                      begin
4491                         C := First_Entity (Typ);
4492                         while Present (C) loop
4493                            Write_Indent;
4494                            Write_Id (C);
4495                            Write_Str (" : ");
4496                            Write_Id (Etype (C));
4497                            Next_Entity (C);
4498                         end loop;
4499                      end;
4500
4501                      Indent_End;
4502                      Write_Indent_Str (" end record");
4503
4504                   --  Class-Wide types
4505
4506                   when E_Class_Wide_Subtype
4507                      | E_Class_Wide_Type
4508                   =>
4509                      Write_Header (Ekind (Typ) = E_Class_Wide_Type);
4510                      Write_Name_With_Col_Check (Chars (Etype (Typ)));
4511                      Write_Str ("'Class");
4512
4513                   --  Subprogram types
4514
4515                   when E_Subprogram_Type =>
4516                      Write_Header;
4517
4518                      if Etype (Typ) = Standard_Void_Type then
4519                         Write_Str ("procedure");
4520                      else
4521                         Write_Str ("function");
4522                      end if;
4523
4524                      if Present (First_Entity (Typ)) then
4525                         Write_Str (" (");
4526
4527                         declare
4528                            Param : Entity_Id;
4529
4530                         begin
4531                            Param := First_Entity (Typ);
4532                            loop
4533                               Write_Id (Param);
4534                               Write_Str (" : ");
4535
4536                               if Ekind (Param) = E_In_Out_Parameter then
4537                                  Write_Str ("in out ");
4538                               elsif Ekind (Param) = E_Out_Parameter then
4539                                  Write_Str ("out ");
4540                               end if;
4541
4542                               Write_Id (Etype (Param));
4543                               Next_Entity (Param);
4544                               exit when No (Param);
4545                               Write_Str (", ");
4546                            end loop;
4547
4548                            if Present (Extra_Formals (Typ)) then
4549                               Param := Extra_Formals (Typ);
4550
4551                               while Present (Param) loop
4552                                  Write_Str (", ");
4553                                  Write_Id (Param);
4554                                  Write_Str (" : ");
4555                                  Write_Id (Etype (Param));
4556
4557                                  Param := Extra_Formal (Param);
4558                               end loop;
4559                            end if;
4560
4561                            Write_Char (')');
4562                         end;
4563
4564                      elsif Present (Extra_Formals (Typ)) then
4565                         declare
4566                            Param : Entity_Id;
4567
4568                         begin
4569                            Write_Str (" (");
4570
4571                            Param := Extra_Formals (Typ);
4572
4573                            while Present (Param) loop
4574                               Write_Id (Param);
4575                               Write_Str (" : ");
4576                               Write_Id (Etype (Param));
4577
4578                               if Present (Extra_Formal (Param)) then
4579                                  Write_Str (", ");
4580                               end if;
4581
4582                               Param := Extra_Formal (Param);
4583                            end loop;
4584
4585                            Write_Char (')');
4586                         end;
4587                      end if;
4588
4589                      if Etype (Typ) /= Standard_Void_Type then
4590                         Write_Str (" return ");
4591                         Write_Id (Etype (Typ));
4592                      end if;
4593
4594                   when E_String_Literal_Subtype =>
4595                      declare
4596                         L   : constant Uint :=
4597                                 Expr_Value (String_Literal_Low_Bound (Typ));
4598                         Len : constant Uint :=
4599                                 String_Literal_Length (Typ);
4600                      begin
4601                         Write_Header (False);
4602                         Write_Str ("String (");
4603                         Write_Int (UI_To_Int (L));
4604                         Write_Str (" .. ");
4605                         Write_Int (UI_To_Int (L + Len) - 1);
4606                         Write_Str (");");
4607                      end;
4608
4609                   --  For all other Itypes, print a triple ? (fill in later
4610                   --  if needed).
4611
4612                   when others =>
4613                      Write_Header (True);
4614                      Write_Str ("???");
4615                end case;
4616             end if;
4617
4618             --  Add terminating bracket and restore output buffer
4619
4620             Write_Char (']');
4621             Write_Eol;
4622             Restore_Output_Buffer (S);
4623          end;
4624
4625          Set_Itype_Printed (Typ);
4626       end if;
4627    end Write_Itype;
4628
4629    -------------------------------
4630    -- Write_Name_With_Col_Check --
4631    -------------------------------
4632
4633    procedure Write_Name_With_Col_Check (N : Name_Id) is
4634       J : Natural;
4635       K : Natural;
4636       L : Natural;
4637
4638    begin
4639       --  Avoid crashing on invalid Name_Ids
4640
4641       if not Is_Valid_Name (N) then
4642          Write_Str ("<invalid name ");
4643          Write_Int (Int (N));
4644          Write_Str (">");
4645          return;
4646       end if;
4647
4648       Get_Name_String (N);
4649
4650       --  Deal with -gnatdI which replaces any sequence Cnnnb where C is an
4651       --  upper case letter, nnn is one or more digits and b is a lower case
4652       --  letter by C...b, so that listings do not depend on serial numbers.
4653
4654       if Debug_Flag_II then
4655          J := 1;
4656          while J < Name_Len - 1 loop
4657             if Name_Buffer (J) in 'A' .. 'Z'
4658               and then Name_Buffer (J + 1) in '0' .. '9'
4659             then
4660                K := J + 1;
4661                while K < Name_Len loop
4662                   exit when Name_Buffer (K) not in '0' .. '9';
4663                   K := K + 1;
4664                end loop;
4665
4666                if Name_Buffer (K) in 'a' .. 'z' then
4667                   L := Name_Len - K + 1;
4668
4669                   Name_Buffer (J + 4 .. J + L + 3) :=
4670                     Name_Buffer (K .. Name_Len);
4671                   Name_Buffer (J + 1 .. J + 3) := "...";
4672                   Name_Len := J + L + 3;
4673                   J := J + 5;
4674
4675                else
4676                   J := K;
4677                end if;
4678
4679             else
4680                J := J + 1;
4681             end if;
4682          end loop;
4683       end if;
4684
4685       --  Fall through for normal case
4686
4687       Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
4688    end Write_Name_With_Col_Check;
4689
4690    ------------------------------------
4691    -- Write_Name_With_Col_Check_Sloc --
4692    ------------------------------------
4693
4694    procedure Write_Name_With_Col_Check_Sloc (N : Name_Id) is
4695    begin
4696       --  Avoid crashing on invalid Name_Ids
4697
4698       if not Is_Valid_Name (N) then
4699          Write_Str ("<invalid name ");
4700          Write_Int (Int (N));
4701          Write_Str (">");
4702          return;
4703       end if;
4704
4705       Get_Name_String (N);
4706       Write_Str_With_Col_Check_Sloc (Name_Buffer (1 .. Name_Len));
4707    end Write_Name_With_Col_Check_Sloc;
4708
4709    --------------------
4710    -- Write_Operator --
4711    --------------------
4712
4713    procedure Write_Operator (N : Node_Id; S : String) is
4714       F : Natural := S'First;
4715       T : Natural := S'Last;
4716
4717    begin
4718       --  If no overflow check, just write string out, and we are done
4719
4720       if not Do_Overflow_Check (N) then
4721          Write_Str_Sloc (S);
4722
4723       --  If overflow check, we want to surround the operator with curly
4724       --  brackets, but not include spaces within the brackets.
4725
4726       else
4727          if S (F) = ' ' then
4728             Write_Char (' ');
4729             F := F + 1;
4730          end if;
4731
4732          if S (T) = ' ' then
4733             T := T - 1;
4734          end if;
4735
4736          Write_Char ('{');
4737          Write_Str_Sloc (S (F .. T));
4738          Write_Char ('}');
4739
4740          if S (S'Last) = ' ' then
4741             Write_Char (' ');
4742          end if;
4743       end if;
4744    end Write_Operator;
4745
4746    -----------------------
4747    -- Write_Param_Specs --
4748    -----------------------
4749
4750    procedure Write_Param_Specs (N : Node_Id) is
4751       Specs         : constant List_Id := Parameter_Specifications (N);
4752       Specs_Present : constant Boolean := Is_Non_Empty_List (Specs);
4753
4754       Ent    : Entity_Id;
4755       Extras : Node_Id;
4756       Spec   : Node_Id;
4757       Formal : Node_Id;
4758
4759       Output : Boolean := False;
4760       --  Set true if we output at least one parameter
4761
4762    begin
4763       --  Write out explicit specs from Parameter_Speficiations list
4764
4765       if Specs_Present then
4766          Write_Str_With_Col_Check (" (");
4767          Output := True;
4768
4769          Spec := First (Specs);
4770          loop
4771             Sprint_Node (Spec);
4772             Formal := Defining_Identifier (Spec);
4773             Next (Spec);
4774             exit when Spec = Empty;
4775
4776             --  Add semicolon, unless we are printing original tree and the
4777             --  next specification is part of a list (but not the first element
4778             --  of that list).
4779
4780             if not Dump_Original_Only or else not Prev_Ids (Spec) then
4781                Write_Str ("; ");
4782             end if;
4783          end loop;
4784       end if;
4785
4786       --  See if we have extra formals
4787
4788       if Nkind (N) in N_Function_Specification | N_Procedure_Specification then
4789          Ent := Defining_Entity (N);
4790
4791          --  Loop to write extra formals (if any)
4792
4793          if Present (Ent) and then Is_Subprogram (Ent) then
4794             Extras := Extra_Formals (Ent);
4795
4796             if Present (Extras) then
4797                if not Specs_Present then
4798                   Write_Str_With_Col_Check (" (");
4799                   Output := True;
4800                end if;
4801
4802                Formal := Extras;
4803                while Present (Formal) loop
4804                   if Specs_Present or else Formal /= Extras then
4805                      Write_Str ("; ");
4806                   end if;
4807
4808                   Write_Name_With_Col_Check (Chars (Formal));
4809                   Write_Str (" : ");
4810                   Write_Name_With_Col_Check (Chars (Etype (Formal)));
4811                   Formal := Extra_Formal (Formal);
4812                end loop;
4813             end if;
4814          end if;
4815       end if;
4816
4817       if Output then
4818          Write_Char (')');
4819       end if;
4820    end Write_Param_Specs;
4821
4822    -----------------------
4823    -- Write_Rewrite_Str --
4824    -----------------------
4825
4826    procedure Write_Rewrite_Str (S : String) is
4827    begin
4828       if not Dump_Generated_Only then
4829          if S'Length = 3 and then S = ">>>" then
4830             Write_Str (">>>");
4831          else
4832             Write_Str_With_Col_Check (S);
4833          end if;
4834       end if;
4835    end Write_Rewrite_Str;
4836
4837    -----------------------
4838    -- Write_Source_Line --
4839    -----------------------
4840
4841    procedure Write_Source_Line (L : Physical_Line_Number) is
4842       Loc : Source_Ptr;
4843       Src : Source_Buffer_Ptr;
4844       Scn : Source_Ptr;
4845
4846    begin
4847       if Dump_Source_Text then
4848          Src := Source_Text (Current_Source_File);
4849          Loc := Line_Start (L, Current_Source_File);
4850          Write_Eol;
4851
4852          --  See if line is a comment line, if not, and if not line one,
4853          --  precede with blank line.
4854
4855          Scn := Loc;
4856          while Src (Scn) = ' ' or else Src (Scn) = ASCII.HT loop
4857             Scn := Scn + 1;
4858          end loop;
4859
4860          if (Src (Scn) in Line_Terminator
4861               or else Src (Scn .. Scn + 1) /= "--")
4862            and then L /= 1
4863          then
4864             Write_Eol;
4865          end if;
4866
4867          --  Now write the source text of the line
4868
4869          Write_Str ("-- ");
4870          Write_Int (Int (L));
4871          Write_Str (": ");
4872
4873          --  We need to check for EOF here, in case the last line of the source
4874          --  file does not have a Line_Terminator.
4875
4876          while Src (Loc) not in Line_Terminator | EOF loop
4877             Write_Char (Src (Loc));
4878             Loc := Loc + 1;
4879          end loop;
4880       end if;
4881    end Write_Source_Line;
4882
4883    ------------------------
4884    -- Write_Source_Lines --
4885    ------------------------
4886
4887    procedure Write_Source_Lines (L : Physical_Line_Number) is
4888    begin
4889       while Last_Line_Printed < L loop
4890          Last_Line_Printed := Last_Line_Printed + 1;
4891          Write_Source_Line (Last_Line_Printed);
4892       end loop;
4893    end Write_Source_Lines;
4894
4895    --------------------
4896    -- Write_Str_Sloc --
4897    --------------------
4898
4899    procedure Write_Str_Sloc (S : String) is
4900    begin
4901       for J in S'Range loop
4902          Write_Char_Sloc (S (J));
4903       end loop;
4904    end Write_Str_Sloc;
4905
4906    ------------------------------
4907    -- Write_Str_With_Col_Check --
4908    ------------------------------
4909
4910    procedure Write_Str_With_Col_Check (S : String) is
4911    begin
4912       if Int (S'Last) + Column > Sprint_Line_Limit then
4913          Write_Indent_Str ("  ");
4914
4915          if S (S'First) = ' ' then
4916             Write_Str (S (S'First + 1 .. S'Last));
4917          else
4918             Write_Str (S);
4919          end if;
4920
4921       else
4922          Write_Str (S);
4923       end if;
4924    end Write_Str_With_Col_Check;
4925
4926    -----------------------------------
4927    -- Write_Str_With_Col_Check_Sloc --
4928    -----------------------------------
4929
4930    procedure Write_Str_With_Col_Check_Sloc (S : String) is
4931    begin
4932       if Int (S'Last) + Column > Sprint_Line_Limit then
4933          Write_Indent_Str ("  ");
4934
4935          if S (S'First) = ' ' then
4936             Write_Str_Sloc (S (S'First + 1 .. S'Last));
4937          else
4938             Write_Str_Sloc (S);
4939          end if;
4940
4941       else
4942          Write_Str_Sloc (S);
4943       end if;
4944    end Write_Str_With_Col_Check_Sloc;
4945
4946    ---------------------------
4947    -- Write_Subprogram_Name --
4948    ---------------------------
4949
4950    procedure Write_Subprogram_Name (N : Node_Id) is
4951    begin
4952       if not Comes_From_Source (N)
4953         and then Is_Entity_Name (N)
4954       then
4955          declare
4956             Ent : constant Entity_Id := Entity (N);
4957          begin
4958             if not In_Extended_Main_Source_Unit (Ent)
4959               and then In_Predefined_Unit (Ent)
4960             then
4961                --  Run-time routine name, output name with a preceding dollar
4962                --  making sure that we do not get a line split between them.
4963
4964                Col_Check (Length_Of_Name (Chars (Ent)) + 1);
4965                Write_Char ('$');
4966                Write_Name (Chars (Ent));
4967                return;
4968             end if;
4969          end;
4970       end if;
4971
4972       --  Normal case, not a run-time routine name
4973
4974       Sprint_Node (N);
4975    end Write_Subprogram_Name;
4976
4977    -------------------------------
4978    -- Write_Uint_With_Col_Check --
4979    -------------------------------
4980
4981    procedure Write_Uint_With_Col_Check (U : Uint; Format : UI_Format) is
4982    begin
4983       Col_Check (UI_Decimal_Digits_Hi (U));
4984       UI_Write (U, Format);
4985    end Write_Uint_With_Col_Check;
4986
4987    ------------------------------------
4988    -- Write_Uint_With_Col_Check_Sloc --
4989    ------------------------------------
4990
4991    procedure Write_Uint_With_Col_Check_Sloc (U : Uint; Format : UI_Format) is
4992    begin
4993       Col_Check (UI_Decimal_Digits_Hi (U));
4994       Set_Debug_Sloc;
4995       UI_Write (U, Format);
4996    end Write_Uint_With_Col_Check_Sloc;
4997
4998    -------------------------------------
4999    -- Write_Ureal_With_Col_Check_Sloc --
5000    -------------------------------------
5001
5002    procedure Write_Ureal_With_Col_Check_Sloc (U : Ureal) is
5003       D : constant Uint := Denominator (U);
5004       N : constant Uint := Numerator (U);
5005    begin
5006       Col_Check (UI_Decimal_Digits_Hi (D) + UI_Decimal_Digits_Hi (N) + 4);
5007       Set_Debug_Sloc;
5008       UR_Write (U, Brackets => True);
5009    end Write_Ureal_With_Col_Check_Sloc;
5010
5011 end Sprint;