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