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_Component_Clause =>
1332             Write_Indent;
1333             Sprint_Node (Component_Name (Node));
1334             Write_Str_Sloc (" at ");
1335             Sprint_Node (Position (Node));
1336             Write_Char (' ');
1337             Write_Str_With_Col_Check ("range ");
1338             Sprint_Node (First_Bit (Node));
1339             Write_Str (" .. ");
1340             Sprint_Node (Last_Bit (Node));
1341             Write_Char (';');
1342
1343          when N_Component_Definition =>
1344             Set_Debug_Sloc;
1345
1346             --  Ada 2005 (AI-230): Access definition components
1347
1348             if Present (Access_Definition (Node)) then
1349                Sprint_Node (Access_Definition (Node));
1350
1351             elsif Present (Subtype_Indication (Node)) then
1352                if Aliased_Present (Node) then
1353                   Write_Str_With_Col_Check ("aliased ");
1354                end if;
1355
1356                --  Ada 2005 (AI-231)
1357
1358                if Null_Exclusion_Present (Node) then
1359                   Write_Str (" not null ");
1360                end if;
1361
1362                Sprint_Node (Subtype_Indication (Node));
1363
1364             else
1365                Write_Str (" ??? ");
1366             end if;
1367
1368          when N_Component_Declaration =>
1369             if Write_Indent_Identifiers_Sloc (Node) then
1370                Write_Str (" : ");
1371                Sprint_Node (Component_Definition (Node));
1372
1373                if Present (Expression (Node)) then
1374                   Write_Str (" := ");
1375                   Sprint_Node (Expression (Node));
1376                end if;
1377
1378                Write_Char (';');
1379             end if;
1380
1381          when N_Component_List =>
1382             if Null_Present (Node) then
1383                Indent_Begin;
1384                Write_Indent_Str_Sloc ("null");
1385                Write_Char (';');
1386                Indent_End;
1387
1388             else
1389                Set_Debug_Sloc;
1390                Sprint_Indented_List (Component_Items (Node));
1391                Sprint_Node (Variant_Part (Node));
1392             end if;
1393
1394          when N_Compound_Statement =>
1395             Write_Indent_Str ("do");
1396             Indent_Begin;
1397             Sprint_Node_List (Actions (Node));
1398             Indent_End;
1399             Write_Indent_Str ("end;");
1400
1401          when N_Conditional_Entry_Call =>
1402             Write_Indent_Str_Sloc ("select");
1403             Indent_Begin;
1404             Sprint_Node (Entry_Call_Alternative (Node));
1405             Indent_End;
1406             Write_Indent_Str ("else");
1407             Sprint_Indented_List (Else_Statements (Node));
1408             Write_Indent_Str ("end select;");
1409
1410          when N_Constrained_Array_Definition =>
1411             Write_Str_With_Col_Check_Sloc ("array ");
1412             Sprint_Paren_Comma_List (Discrete_Subtype_Definitions (Node));
1413             Write_Str (" of ");
1414
1415             Sprint_Node (Component_Definition (Node));
1416
1417          --  A contract node should not appear in the tree. It is a semantic
1418          --  node attached to entry and [generic] subprogram entities. But we
1419          --  still provide meaningful output, in case called from the debugger.
1420
1421          when N_Contract =>
1422             declare
1423                P : Node_Id;
1424
1425             begin
1426                Indent_Begin;
1427                Write_Str ("N_Contract node");
1428                Write_Eol;
1429
1430                Write_Indent_Str ("Pre_Post_Conditions");
1431                Indent_Begin;
1432
1433                P := Pre_Post_Conditions (Node);
1434                while Present (P) loop
1435                   Sprint_Node (P);
1436                   P := Next_Pragma (P);
1437                end loop;
1438
1439                Write_Eol;
1440                Indent_End;
1441
1442                Write_Indent_Str ("Contract_Test_Cases");
1443                Indent_Begin;
1444
1445                P := Contract_Test_Cases (Node);
1446                while Present (P) loop
1447                   Sprint_Node (P);
1448                   P := Next_Pragma (P);
1449                end loop;
1450
1451                Write_Eol;
1452                Indent_End;
1453
1454                Write_Indent_Str ("Classifications");
1455                Indent_Begin;
1456
1457                P := Classifications (Node);
1458                while Present (P) loop
1459                   Sprint_Node (P);
1460                   P := Next_Pragma (P);
1461                end loop;
1462
1463                Write_Eol;
1464                Indent_End;
1465                Indent_End;
1466             end;
1467
1468          when N_Decimal_Fixed_Point_Definition =>
1469             Write_Str_With_Col_Check_Sloc (" delta ");
1470             Sprint_Node (Delta_Expression (Node));
1471             Write_Str_With_Col_Check ("digits ");
1472             Sprint_Node (Digits_Expression (Node));
1473             Sprint_Opt_Node (Real_Range_Specification (Node));
1474
1475          when N_Defining_Character_Literal =>
1476             Write_Name_With_Col_Check_Sloc (Chars (Node));
1477
1478          when N_Defining_Identifier =>
1479             Set_Debug_Sloc;
1480             Write_Id (Node);
1481
1482          when N_Defining_Operator_Symbol =>
1483             Write_Name_With_Col_Check_Sloc (Chars (Node));
1484
1485          when N_Defining_Program_Unit_Name =>
1486             Set_Debug_Sloc;
1487             Sprint_Node (Name (Node));
1488             Write_Char ('.');
1489             Write_Id (Defining_Identifier (Node));
1490
1491          when N_Delay_Alternative =>
1492             Sprint_Node_List (Pragmas_Before (Node));
1493
1494             if Present (Condition (Node)) then
1495                Write_Indent;
1496                Write_Str_With_Col_Check ("when ");
1497                Sprint_Node (Condition (Node));
1498                Write_Str (" => ");
1499                Indent_Annull;
1500             end if;
1501
1502             Sprint_Node_Sloc (Delay_Statement (Node));
1503             Sprint_Node_List (Statements (Node));
1504
1505          when N_Delay_Relative_Statement =>
1506             Write_Indent_Str_Sloc ("delay ");
1507             Sprint_Node (Expression (Node));
1508             Write_Char (';');
1509
1510          when N_Delay_Until_Statement =>
1511             Write_Indent_Str_Sloc ("delay until ");
1512             Sprint_Node (Expression (Node));
1513             Write_Char (';');
1514
1515          when N_Delta_Constraint =>
1516             Write_Str_With_Col_Check_Sloc ("delta ");
1517             Sprint_Node (Delta_Expression (Node));
1518             Sprint_Opt_Node (Range_Constraint (Node));
1519
1520          when N_Derived_Type_Definition =>
1521             if Abstract_Present (Node) then
1522                Write_Str_With_Col_Check ("abstract ");
1523             end if;
1524
1525             Write_Str_With_Col_Check ("new ");
1526
1527             --  Ada 2005 (AI-231)
1528
1529             if Null_Exclusion_Present (Node) then
1530                Write_Str_With_Col_Check ("not null ");
1531             end if;
1532
1533             Sprint_Node (Subtype_Indication (Node));
1534
1535             if Present (Interface_List (Node)) then
1536                Write_Str_With_Col_Check (" and ");
1537                Sprint_And_List (Interface_List (Node));
1538                Write_Str_With_Col_Check (" with ");
1539             end if;
1540
1541             if Present (Record_Extension_Part (Node)) then
1542                if No (Interface_List (Node)) then
1543                   Write_Str_With_Col_Check (" with ");
1544                end if;
1545
1546                Sprint_Node (Record_Extension_Part (Node));
1547             end if;
1548
1549          when N_Designator =>
1550             Sprint_Node (Name (Node));
1551             Write_Char_Sloc ('.');
1552             Write_Id (Identifier (Node));
1553
1554          when N_Digits_Constraint =>
1555             Write_Str_With_Col_Check_Sloc ("digits ");
1556             Sprint_Node (Digits_Expression (Node));
1557             Sprint_Opt_Node (Range_Constraint (Node));
1558
1559          when N_Discriminant_Association =>
1560             Set_Debug_Sloc;
1561
1562             if Present (Selector_Names (Node)) then
1563                Sprint_Bar_List (Selector_Names (Node));
1564                Write_Str (" => ");
1565             end if;
1566
1567             Set_Debug_Sloc;
1568             Sprint_Node (Expression (Node));
1569
1570          when N_Discriminant_Specification =>
1571             Set_Debug_Sloc;
1572
1573             if Write_Identifiers (Node) then
1574                Write_Str (" : ");
1575
1576                if Null_Exclusion_Present (Node) then
1577                   Write_Str ("not null ");
1578                end if;
1579
1580                Sprint_Node (Discriminant_Type (Node));
1581
1582                if Present (Expression (Node)) then
1583                   Write_Str (" := ");
1584                   Sprint_Node (Expression (Node));
1585                end if;
1586             else
1587                Write_Str (", ");
1588             end if;
1589
1590          when N_Elsif_Part =>
1591             Write_Indent_Str_Sloc ("elsif ");
1592             Sprint_Node (Condition (Node));
1593             Write_Str_With_Col_Check (" then");
1594             Sprint_Indented_List (Then_Statements (Node));
1595
1596          when N_Empty =>
1597             null;
1598
1599          when N_Entry_Body =>
1600             Write_Indent_Str_Sloc ("entry ");
1601             Write_Id (Defining_Identifier (Node));
1602             Sprint_Node (Entry_Body_Formal_Part (Node));
1603             Write_Str_With_Col_Check (" is");
1604             Sprint_Indented_List (Declarations (Node));
1605             Write_Indent_Str ("begin");
1606             Sprint_Node (Handled_Statement_Sequence (Node));
1607             Write_Indent_Str ("end ");
1608             Write_Id (Defining_Identifier (Node));
1609             Write_Char (';');
1610
1611          when N_Entry_Body_Formal_Part =>
1612             if Present (Entry_Index_Specification (Node)) then
1613                Write_Str_With_Col_Check_Sloc (" (");
1614                Sprint_Node (Entry_Index_Specification (Node));
1615                Write_Char (')');
1616             end if;
1617
1618             Write_Param_Specs (Node);
1619             Write_Str_With_Col_Check_Sloc (" when ");
1620             Sprint_Node (Condition (Node));
1621
1622          when N_Entry_Call_Alternative =>
1623             Sprint_Node_List (Pragmas_Before (Node));
1624             Sprint_Node_Sloc (Entry_Call_Statement (Node));
1625             Sprint_Node_List (Statements (Node));
1626
1627          when N_Entry_Call_Statement =>
1628             Write_Indent;
1629             Sprint_Node_Sloc (Name (Node));
1630             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
1631             Write_Char (';');
1632
1633          when N_Entry_Declaration =>
1634             Write_Indent_Str_Sloc ("entry ");
1635             Write_Id (Defining_Identifier (Node));
1636
1637             if Present (Discrete_Subtype_Definition (Node)) then
1638                Write_Str_With_Col_Check (" (");
1639                Sprint_Node (Discrete_Subtype_Definition (Node));
1640                Write_Char (')');
1641             end if;
1642
1643             Write_Param_Specs (Node);
1644             Write_Char (';');
1645
1646          when N_Entry_Index_Specification =>
1647             Write_Str_With_Col_Check_Sloc ("for ");
1648             Write_Id (Defining_Identifier (Node));
1649             Write_Str_With_Col_Check (" in ");
1650             Sprint_Node (Discrete_Subtype_Definition (Node));
1651
1652          when N_Enumeration_Representation_Clause =>
1653             Write_Indent_Str_Sloc ("for ");
1654             Write_Id (Identifier (Node));
1655             Write_Str_With_Col_Check (" use ");
1656             Sprint_Node (Array_Aggregate (Node));
1657             Write_Char (';');
1658
1659          when N_Enumeration_Type_Definition =>
1660             Set_Debug_Sloc;
1661
1662             --  Skip attempt to print Literals field if it's not there and
1663             --  we are in package Standard (case of Character, which is
1664             --  handled specially (without an explicit literals list).
1665
1666             if Sloc (Node) > Standard_Location
1667               or else Present (Literals (Node))
1668             then
1669                Sprint_Paren_Comma_List (Literals (Node));
1670             end if;
1671
1672          when N_Error =>
1673             Write_Str_With_Col_Check_Sloc ("<error>");
1674
1675          when N_Exception_Declaration =>
1676             if Write_Indent_Identifiers (Node) then
1677                Write_Str_With_Col_Check (" : ");
1678
1679                if Is_Statically_Allocated (Defining_Identifier (Node)) then
1680                   Write_Str_With_Col_Check ("static ");
1681                end if;
1682
1683                Write_Str_Sloc ("exception");
1684
1685                if Present (Expression (Node)) then
1686                   Write_Str (" := ");
1687                   Sprint_Node (Expression (Node));
1688                end if;
1689
1690                Write_Char (';');
1691             end if;
1692
1693          when N_Exception_Handler =>
1694             Write_Indent_Str_Sloc ("when ");
1695
1696             if Present (Choice_Parameter (Node)) then
1697                Sprint_Node (Choice_Parameter (Node));
1698                Write_Str (" : ");
1699             end if;
1700
1701             Sprint_Bar_List (Exception_Choices (Node));
1702             Write_Str (" => ");
1703             Sprint_Indented_List (Statements (Node));
1704
1705          when N_Exception_Renaming_Declaration =>
1706             Write_Indent;
1707             Set_Debug_Sloc;
1708             Sprint_Node (Defining_Identifier (Node));
1709             Write_Str_With_Col_Check (" : exception renames ");
1710             Sprint_Node (Name (Node));
1711             Write_Char (';');
1712
1713          when N_Exit_Statement =>
1714             Write_Indent_Str_Sloc ("exit");
1715             Sprint_Opt_Node (Name (Node));
1716
1717             if Present (Condition (Node)) then
1718                Write_Str_With_Col_Check (" when ");
1719                Sprint_Node (Condition (Node));
1720             end if;
1721
1722             Write_Char (';');
1723
1724          when N_Expanded_Name =>
1725             Sprint_Node (Prefix (Node));
1726             Write_Char_Sloc ('.');
1727             Sprint_Node (Selector_Name (Node));
1728
1729          when N_Explicit_Dereference =>
1730             Sprint_Node (Prefix (Node));
1731             Write_Char_Sloc ('.');
1732             Write_Str_Sloc ("all");
1733
1734          when N_Expression_With_Actions =>
1735             Indent_Begin;
1736             Write_Indent_Str_Sloc ("do ");
1737             Indent_Begin;
1738             Sprint_Node_List (Actions (Node));
1739             Indent_End;
1740             Write_Indent;
1741             Write_Str_With_Col_Check_Sloc ("in ");
1742             Sprint_Node (Expression (Node));
1743             Write_Str_With_Col_Check (" end");
1744             Indent_End;
1745             Write_Indent;
1746
1747          when N_Expression_Function =>
1748             Write_Indent;
1749             Sprint_Node_Sloc (Specification (Node));
1750             Write_Str (" is");
1751             Indent_Begin;
1752             Write_Indent;
1753             Sprint_Node (Expression (Node));
1754             Write_Char (';');
1755             Indent_End;
1756
1757          when N_Extended_Return_Statement =>
1758             Write_Indent_Str_Sloc ("return ");
1759             Sprint_Node_List (Return_Object_Declarations (Node));
1760
1761             if Present (Handled_Statement_Sequence (Node)) then
1762                Write_Str_With_Col_Check (" do");
1763                Sprint_Node (Handled_Statement_Sequence (Node));
1764                Write_Indent_Str ("end return;");
1765             else
1766                Write_Indent_Str (";");
1767             end if;
1768
1769          when N_Extension_Aggregate =>
1770             Write_Str_With_Col_Check_Sloc ("(");
1771             Sprint_Node (Ancestor_Part (Node));
1772             Write_Str_With_Col_Check (" with ");
1773
1774             if Null_Record_Present (Node) then
1775                Write_Str_With_Col_Check ("null record");
1776             else
1777                if Present (Expressions (Node)) then
1778                   Sprint_Comma_List (Expressions (Node));
1779
1780                   if Present (Component_Associations (Node)) then
1781                      Write_Str (", ");
1782                   end if;
1783                end if;
1784
1785                if Present (Component_Associations (Node)) then
1786                   Sprint_Comma_List (Component_Associations (Node));
1787                end if;
1788             end if;
1789
1790             Write_Char (')');
1791
1792          when N_Floating_Point_Definition =>
1793             Write_Str_With_Col_Check_Sloc ("digits ");
1794             Sprint_Node (Digits_Expression (Node));
1795             Sprint_Opt_Node (Real_Range_Specification (Node));
1796
1797          when N_Formal_Decimal_Fixed_Point_Definition =>
1798             Write_Str_With_Col_Check_Sloc ("delta <> digits <>");
1799
1800          when N_Formal_Derived_Type_Definition =>
1801             Write_Str_With_Col_Check_Sloc ("new ");
1802             Sprint_Node (Subtype_Mark (Node));
1803
1804             if Present (Interface_List (Node)) then
1805                Write_Str_With_Col_Check (" and ");
1806                Sprint_And_List (Interface_List (Node));
1807             end if;
1808
1809             if Private_Present (Node) then
1810                Write_Str_With_Col_Check (" with private");
1811             end if;
1812
1813          when N_Formal_Abstract_Subprogram_Declaration =>
1814             Write_Indent_Str_Sloc ("with ");
1815             Sprint_Node (Specification (Node));
1816
1817             Write_Str_With_Col_Check (" is abstract");
1818
1819             if Box_Present (Node) then
1820                Write_Str_With_Col_Check (" <>");
1821             elsif Present (Default_Name (Node)) then
1822                Write_Str_With_Col_Check (" ");
1823                Sprint_Node (Default_Name (Node));
1824             end if;
1825
1826             Write_Char (';');
1827
1828          when N_Formal_Concrete_Subprogram_Declaration =>
1829             Write_Indent_Str_Sloc ("with ");
1830             Sprint_Node (Specification (Node));
1831
1832             if Box_Present (Node) then
1833                Write_Str_With_Col_Check (" is <>");
1834             elsif Present (Default_Name (Node)) then
1835                Write_Str_With_Col_Check (" is ");
1836                Sprint_Node (Default_Name (Node));
1837             end if;
1838
1839             Write_Char (';');
1840
1841          when N_Formal_Discrete_Type_Definition =>
1842             Write_Str_With_Col_Check_Sloc ("<>");
1843
1844          when N_Formal_Floating_Point_Definition =>
1845             Write_Str_With_Col_Check_Sloc ("digits <>");
1846
1847          when N_Formal_Modular_Type_Definition =>
1848             Write_Str_With_Col_Check_Sloc ("mod <>");
1849
1850          when N_Formal_Object_Declaration =>
1851             Set_Debug_Sloc;
1852
1853             if Write_Indent_Identifiers (Node) then
1854                Write_Str (" : ");
1855
1856                if In_Present (Node) then
1857                   Write_Str_With_Col_Check ("in ");
1858                end if;
1859
1860                if Out_Present (Node) then
1861                   Write_Str_With_Col_Check ("out ");
1862                end if;
1863
1864                if Present (Subtype_Mark (Node)) then
1865
1866                   --  Ada 2005 (AI-423): Formal object with null exclusion
1867
1868                   if Null_Exclusion_Present (Node) then
1869                      Write_Str ("not null ");
1870                   end if;
1871
1872                   Sprint_Node (Subtype_Mark (Node));
1873
1874                --  Ada 2005 (AI-423): Formal object with access definition
1875
1876                else
1877                   pragma Assert (Present (Access_Definition (Node)));
1878
1879                   Sprint_Node (Access_Definition (Node));
1880                end if;
1881
1882                if Present (Default_Expression (Node)) then
1883                   Write_Str (" := ");
1884                   Sprint_Node (Default_Expression (Node));
1885                end if;
1886
1887                Write_Char (';');
1888             end if;
1889
1890          when N_Formal_Ordinary_Fixed_Point_Definition =>
1891             Write_Str_With_Col_Check_Sloc ("delta <>");
1892
1893          when N_Formal_Package_Declaration =>
1894             Write_Indent_Str_Sloc ("with package ");
1895             Write_Id (Defining_Identifier (Node));
1896             Write_Str_With_Col_Check (" is new ");
1897             Sprint_Node (Name (Node));
1898             Write_Str_With_Col_Check (" (<>);");
1899
1900          when N_Formal_Private_Type_Definition =>
1901             if Abstract_Present (Node) then
1902                Write_Str_With_Col_Check ("abstract ");
1903             end if;
1904
1905             if Tagged_Present (Node) then
1906                Write_Str_With_Col_Check ("tagged ");
1907             end if;
1908
1909             if Limited_Present (Node) then
1910                Write_Str_With_Col_Check ("limited ");
1911             end if;
1912
1913             Write_Str_With_Col_Check_Sloc ("private");
1914
1915          when N_Formal_Incomplete_Type_Definition =>
1916             if Tagged_Present (Node) then
1917                Write_Str_With_Col_Check ("is tagged ");
1918             end if;
1919
1920          when N_Formal_Signed_Integer_Type_Definition =>
1921             Write_Str_With_Col_Check_Sloc ("range <>");
1922
1923          when N_Formal_Type_Declaration =>
1924             Write_Indent_Str_Sloc ("type ");
1925             Write_Id (Defining_Identifier (Node));
1926
1927             if Present (Discriminant_Specifications (Node)) then
1928                Write_Discr_Specs (Node);
1929             elsif Unknown_Discriminants_Present (Node) then
1930                Write_Str_With_Col_Check ("(<>)");
1931             end if;
1932
1933             if Nkind (Formal_Type_Definition (Node)) /=
1934                 N_Formal_Incomplete_Type_Definition
1935             then
1936                Write_Str_With_Col_Check (" is ");
1937             end if;
1938
1939             Sprint_Node (Formal_Type_Definition (Node));
1940             Write_Char (';');
1941
1942          when N_Free_Statement =>
1943             Write_Indent_Str_Sloc ("free ");
1944             Sprint_Node (Expression (Node));
1945             Write_Char (';');
1946
1947          when N_Freeze_Entity =>
1948             if Dump_Original_Only then
1949                null;
1950
1951             --  A freeze node is output if it has some effect (i.e. non-empty
1952             --  actions, or freeze node for an itype, which causes elaboration
1953             --  of the itype), and is also always output if Dump_Freeze_Null
1954             --  is set True.
1955
1956             elsif Present (Actions (Node))
1957               or else Is_Itype (Entity (Node))
1958               or else Dump_Freeze_Null
1959             then
1960                Write_Indent;
1961                Write_Rewrite_Str ("<<<");
1962                Write_Str_With_Col_Check_Sloc ("freeze ");
1963                Write_Id (Entity (Node));
1964                Write_Str (" [");
1965
1966                if No (Actions (Node)) then
1967                   Write_Char (']');
1968
1969                else
1970                   --  Output freeze actions. We increment Freeze_Indent during
1971                   --  this output to avoid generating extra blank lines before
1972                   --  any procedures included in the freeze actions.
1973
1974                   Freeze_Indent := Freeze_Indent + 1;
1975                   Sprint_Indented_List (Actions (Node));
1976                   Freeze_Indent := Freeze_Indent - 1;
1977                   Write_Indent_Str ("]");
1978                end if;
1979
1980                Write_Rewrite_Str (">>>");
1981             end if;
1982
1983          when N_Freeze_Generic_Entity =>
1984             if Dump_Original_Only then
1985                null;
1986
1987             else
1988                Write_Indent;
1989                Write_Str_With_Col_Check_Sloc ("freeze_generic ");
1990                Write_Id (Entity (Node));
1991             end if;
1992
1993          when N_Full_Type_Declaration =>
1994             Write_Indent_Str_Sloc ("type ");
1995             Sprint_Node (Defining_Identifier (Node));
1996             Write_Discr_Specs (Node);
1997             Write_Str_With_Col_Check (" is ");
1998             Sprint_Node (Type_Definition (Node));
1999             Write_Char (';');
2000
2001          when N_Function_Call =>
2002             Set_Debug_Sloc;
2003             Write_Subprogram_Name (Name (Node));
2004             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
2005
2006          when N_Function_Instantiation =>
2007             Write_Indent_Str_Sloc ("function ");
2008             Sprint_Node (Defining_Unit_Name (Node));
2009             Write_Str_With_Col_Check (" is new ");
2010             Sprint_Node (Name (Node));
2011             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2012             Write_Char (';');
2013
2014          when N_Function_Specification =>
2015             Write_Str_With_Col_Check_Sloc ("function ");
2016             Sprint_Node (Defining_Unit_Name (Node));
2017             Write_Param_Specs (Node);
2018             Write_Str_With_Col_Check (" return ");
2019
2020             --  Ada 2005 (AI-231)
2021
2022             if Nkind (Result_Definition (Node)) /= N_Access_Definition
2023               and then Null_Exclusion_Present (Node)
2024             then
2025                Write_Str (" not null ");
2026             end if;
2027
2028             Sprint_Node (Result_Definition (Node));
2029
2030          when N_Generic_Association =>
2031             Set_Debug_Sloc;
2032
2033             if Present (Selector_Name (Node)) then
2034                Sprint_Node (Selector_Name (Node));
2035                Write_Str (" => ");
2036             end if;
2037
2038             Sprint_Node (Explicit_Generic_Actual_Parameter (Node));
2039
2040          when N_Generic_Function_Renaming_Declaration =>
2041             Write_Indent_Str_Sloc ("generic function ");
2042             Sprint_Node (Defining_Unit_Name (Node));
2043             Write_Str_With_Col_Check (" renames ");
2044             Sprint_Node (Name (Node));
2045             Write_Char (';');
2046
2047          when N_Generic_Package_Declaration =>
2048             Extra_Blank_Line;
2049             Write_Indent_Str_Sloc ("generic ");
2050             Sprint_Indented_List (Generic_Formal_Declarations (Node));
2051             Write_Indent;
2052             Sprint_Node (Specification (Node));
2053             Write_Char (';');
2054
2055          when N_Generic_Package_Renaming_Declaration =>
2056             Write_Indent_Str_Sloc ("generic package ");
2057             Sprint_Node (Defining_Unit_Name (Node));
2058             Write_Str_With_Col_Check (" renames ");
2059             Sprint_Node (Name (Node));
2060             Write_Char (';');
2061
2062          when N_Generic_Procedure_Renaming_Declaration =>
2063             Write_Indent_Str_Sloc ("generic procedure ");
2064             Sprint_Node (Defining_Unit_Name (Node));
2065             Write_Str_With_Col_Check (" renames ");
2066             Sprint_Node (Name (Node));
2067             Write_Char (';');
2068
2069          when N_Generic_Subprogram_Declaration =>
2070             Extra_Blank_Line;
2071             Write_Indent_Str_Sloc ("generic ");
2072             Sprint_Indented_List (Generic_Formal_Declarations (Node));
2073             Write_Indent;
2074             Sprint_Node (Specification (Node));
2075             Write_Char (';');
2076
2077          when N_Goto_Statement =>
2078             Write_Indent_Str_Sloc ("goto ");
2079             Sprint_Node (Name (Node));
2080             Write_Char (';');
2081
2082             if Nkind (Next (Node)) = N_Label then
2083                Write_Indent;
2084             end if;
2085
2086          when N_Handled_Sequence_Of_Statements =>
2087             Set_Debug_Sloc;
2088             Sprint_Indented_List (Statements (Node));
2089
2090             if Present (Exception_Handlers (Node)) then
2091                Write_Indent_Str ("exception");
2092                Indent_Begin;
2093                Sprint_Node_List (Exception_Handlers (Node));
2094                Indent_End;
2095             end if;
2096
2097             if Present (At_End_Proc (Node)) then
2098                Write_Indent_Str ("at end");
2099                Indent_Begin;
2100                Write_Indent;
2101                Sprint_Node (At_End_Proc (Node));
2102                Write_Char (';');
2103                Indent_End;
2104             end if;
2105
2106          when N_Identifier =>
2107             Set_Debug_Sloc;
2108             Write_Id (Node);
2109
2110          when N_If_Expression =>
2111             declare
2112                Has_Parens : constant Boolean := Paren_Count (Node) > 0;
2113                Condition  : constant Node_Id := First (Expressions (Node));
2114                Then_Expr  : constant Node_Id := Next (Condition);
2115
2116             begin
2117                --  The syntax for if_expression does not include parentheses,
2118                --  but sometimes parentheses are required, so unconditionally
2119                --  generate them here unless already present.
2120
2121                if not Has_Parens then
2122                   Write_Char ('(');
2123                end if;
2124
2125                Write_Str_With_Col_Check_Sloc ("if ");
2126                Sprint_Node (Condition);
2127                Write_Str_With_Col_Check (" then ");
2128
2129                --  Defense against junk here
2130
2131                if Present (Then_Expr) then
2132                   Sprint_Node (Then_Expr);
2133
2134                   if Present (Next (Then_Expr)) then
2135                      Write_Str_With_Col_Check (" else ");
2136                      Sprint_Node (Next (Then_Expr));
2137                   end if;
2138                end if;
2139
2140                if not Has_Parens then
2141                   Write_Char (')');
2142                end if;
2143             end;
2144
2145          when N_If_Statement =>
2146             Write_Indent_Str_Sloc ("if ");
2147             Sprint_Node (Condition (Node));
2148             Write_Str_With_Col_Check (" then");
2149             Sprint_Indented_List (Then_Statements (Node));
2150             Sprint_Opt_Node_List (Elsif_Parts (Node));
2151
2152             if Present (Else_Statements (Node)) then
2153                Write_Indent_Str ("else");
2154                Sprint_Indented_List (Else_Statements (Node));
2155             end if;
2156
2157             Write_Indent_Str ("end if;");
2158
2159          when N_Implicit_Label_Declaration =>
2160             if not Dump_Original_Only then
2161                Write_Indent;
2162                Write_Rewrite_Str ("<<<");
2163                Set_Debug_Sloc;
2164                Write_Id (Defining_Identifier (Node));
2165                Write_Str (" : ");
2166                Write_Str_With_Col_Check ("label");
2167                Write_Rewrite_Str (">>>");
2168             end if;
2169
2170          when N_In =>
2171             Sprint_Left_Opnd (Node);
2172             Write_Str_Sloc (" in ");
2173
2174             if Present (Right_Opnd (Node)) then
2175                Sprint_Right_Opnd (Node);
2176             else
2177                Sprint_Bar_List (Alternatives (Node));
2178             end if;
2179
2180          when N_Incomplete_Type_Declaration =>
2181             Write_Indent_Str_Sloc ("type ");
2182             Write_Id (Defining_Identifier (Node));
2183
2184             if Present (Discriminant_Specifications (Node)) then
2185                Write_Discr_Specs (Node);
2186             elsif Unknown_Discriminants_Present (Node) then
2187                Write_Str_With_Col_Check ("(<>)");
2188             end if;
2189
2190             Write_Char (';');
2191
2192          when N_Index_Or_Discriminant_Constraint =>
2193             Set_Debug_Sloc;
2194             Sprint_Paren_Comma_List (Constraints (Node));
2195
2196          when N_Indexed_Component =>
2197             Sprint_Node_Sloc (Prefix (Node));
2198             Sprint_Opt_Paren_Comma_List (Expressions (Node));
2199
2200          when N_Integer_Literal =>
2201             if Print_In_Hex (Node) then
2202                Write_Uint_With_Col_Check_Sloc (Intval (Node), Hex);
2203             else
2204                Write_Uint_With_Col_Check_Sloc (Intval (Node), Auto);
2205             end if;
2206
2207          when N_Iteration_Scheme =>
2208             if Present (Condition (Node)) then
2209                Write_Str_With_Col_Check_Sloc ("while ");
2210                Sprint_Node (Condition (Node));
2211             else
2212                Write_Str_With_Col_Check_Sloc ("for ");
2213
2214                if Present (Iterator_Specification (Node)) then
2215                   Sprint_Node (Iterator_Specification (Node));
2216                else
2217                   Sprint_Node (Loop_Parameter_Specification (Node));
2218                end if;
2219             end if;
2220
2221             Write_Char (' ');
2222
2223          when N_Iterator_Specification =>
2224             Set_Debug_Sloc;
2225             Write_Id (Defining_Identifier (Node));
2226
2227             if Present (Subtype_Indication (Node)) then
2228                Write_Str_With_Col_Check (" : ");
2229                Sprint_Node (Subtype_Indication (Node));
2230             end if;
2231
2232             if Of_Present (Node) then
2233                Write_Str_With_Col_Check (" of ");
2234             else
2235                Write_Str_With_Col_Check (" in ");
2236             end if;
2237
2238             if Reverse_Present (Node) then
2239                Write_Str_With_Col_Check ("reverse ");
2240             end if;
2241
2242             Sprint_Node (Name (Node));
2243
2244          when N_Itype_Reference =>
2245             Write_Indent_Str_Sloc ("reference ");
2246             Write_Id (Itype (Node));
2247
2248          when N_Label =>
2249             Write_Indent_Str_Sloc ("<<");
2250             Write_Id (Identifier (Node));
2251             Write_Str (">>");
2252
2253          when N_Loop_Parameter_Specification =>
2254             Set_Debug_Sloc;
2255             Write_Id (Defining_Identifier (Node));
2256             Write_Str_With_Col_Check (" in ");
2257
2258             if Reverse_Present (Node) then
2259                Write_Str_With_Col_Check ("reverse ");
2260             end if;
2261
2262             Sprint_Node (Discrete_Subtype_Definition (Node));
2263
2264          when N_Loop_Statement =>
2265             Write_Indent;
2266
2267             if Present (Identifier (Node))
2268               and then (not Has_Created_Identifier (Node)
2269                           or else not Dump_Original_Only)
2270             then
2271                Write_Rewrite_Str ("<<<");
2272                Write_Id (Identifier (Node));
2273                Write_Str (" : ");
2274                Write_Rewrite_Str (">>>");
2275                Sprint_Node (Iteration_Scheme (Node));
2276                Write_Str_With_Col_Check_Sloc ("loop");
2277                Sprint_Indented_List (Statements (Node));
2278                Write_Indent_Str ("end loop ");
2279                Write_Rewrite_Str ("<<<");
2280                Write_Id (Identifier (Node));
2281                Write_Rewrite_Str (">>>");
2282                Write_Char (';');
2283
2284             else
2285                Sprint_Node (Iteration_Scheme (Node));
2286                Write_Str_With_Col_Check_Sloc ("loop");
2287                Sprint_Indented_List (Statements (Node));
2288                Write_Indent_Str ("end loop;");
2289             end if;
2290
2291          when N_Mod_Clause =>
2292             Sprint_Node_List (Pragmas_Before (Node));
2293             Write_Str_With_Col_Check_Sloc ("at mod ");
2294             Sprint_Node (Expression (Node));
2295
2296          when N_Modular_Type_Definition =>
2297             Write_Str_With_Col_Check_Sloc ("mod ");
2298             Sprint_Node (Expression (Node));
2299
2300          when N_Not_In =>
2301             Sprint_Left_Opnd (Node);
2302             Write_Str_Sloc (" not in ");
2303
2304             if Present (Right_Opnd (Node)) then
2305                Sprint_Right_Opnd (Node);
2306             else
2307                Sprint_Bar_List (Alternatives (Node));
2308             end if;
2309
2310          when N_Null =>
2311             Write_Str_With_Col_Check_Sloc ("null");
2312
2313          when N_Null_Statement =>
2314             if Comes_From_Source (Node)
2315               or else Dump_Freeze_Null
2316               or else not Is_List_Member (Node)
2317               or else (No (Prev (Node)) and then No (Next (Node)))
2318             then
2319                Write_Indent_Str_Sloc ("null;");
2320             end if;
2321
2322          when N_Number_Declaration =>
2323             Set_Debug_Sloc;
2324
2325             if Write_Indent_Identifiers (Node) then
2326                Write_Str_With_Col_Check (" : constant ");
2327                Write_Str (" := ");
2328                Sprint_Node (Expression (Node));
2329                Write_Char (';');
2330             end if;
2331
2332          when N_Object_Declaration =>
2333             Set_Debug_Sloc;
2334
2335             if Write_Indent_Identifiers (Node) then
2336                declare
2337                   Def_Id : constant Entity_Id := Defining_Identifier (Node);
2338
2339                begin
2340                   Write_Str_With_Col_Check (" : ");
2341
2342                   if Is_Statically_Allocated (Def_Id) then
2343                      Write_Str_With_Col_Check ("static ");
2344                   end if;
2345
2346                   if Aliased_Present (Node) then
2347                      Write_Str_With_Col_Check ("aliased ");
2348                   end if;
2349
2350                   if Constant_Present (Node) then
2351                      Write_Str_With_Col_Check ("constant ");
2352                   end if;
2353
2354                   --  Ada 2005 (AI-231)
2355
2356                   if Null_Exclusion_Present (Node) then
2357                      Write_Str_With_Col_Check ("not null ");
2358                   end if;
2359
2360                   --  Print type. We used to print the Object_Definition from
2361                   --  the node, but it is much more useful to print the Etype
2362                   --  of the defining identifier for the case where the nominal
2363                   --  type is an unconstrained array type. For example, this
2364                   --  will be a clear reference to the Itype with the bounds
2365                   --  in the case of a type like String. The object after
2366                   --  all is constrained, even if its nominal subtype is
2367                   --  unconstrained.
2368
2369                   declare
2370                      Odef : constant Node_Id := Object_Definition (Node);
2371
2372                   begin
2373                      if Nkind (Odef) = N_Identifier
2374                        and then Present (Etype (Odef))
2375                        and then Is_Array_Type (Etype (Odef))
2376                        and then not Is_Constrained (Etype (Odef))
2377                        and then Present (Etype (Def_Id))
2378                      then
2379                         Sprint_Node (Etype (Def_Id));
2380
2381                      --  In other cases, the nominal type is fine to print
2382
2383                      else
2384                         Sprint_Node (Odef);
2385                      end if;
2386                   end;
2387
2388                   if Present (Expression (Node))
2389                     and then Expression (Node) /= Error
2390                   then
2391                      Write_Str (" := ");
2392                      Sprint_Node (Expression (Node));
2393                   end if;
2394
2395                   Write_Char (';');
2396
2397                   --  Handle implicit importation and implicit exportation of
2398                   --  object declarations:
2399                   --    $pragma import (Convention_Id, Def_Id, "...");
2400                   --    $pragma export (Convention_Id, Def_Id, "...");
2401
2402                   if Is_Internal (Def_Id)
2403                     and then Present (Interface_Name (Def_Id))
2404                   then
2405                      Write_Indent_Str_Sloc ("$pragma ");
2406
2407                      if Is_Imported (Def_Id) then
2408                         Write_Str ("import (");
2409
2410                      else pragma Assert (Is_Exported (Def_Id));
2411                         Write_Str ("export (");
2412                      end if;
2413
2414                      declare
2415                         Prefix : constant String  := "Convention_";
2416                         S      : constant String  := Convention (Def_Id)'Img;
2417
2418                      begin
2419                         Name_Len := S'Last - Prefix'Last;
2420                         Name_Buffer (1 .. Name_Len) :=
2421                           S (Prefix'Last + 1 .. S'Last);
2422                         Set_Casing (All_Lower_Case);
2423                         Write_Str (Name_Buffer (1 .. Name_Len));
2424                      end;
2425
2426                      Write_Str (", ");
2427                      Write_Id  (Def_Id);
2428                      Write_Str (", ");
2429                      Write_String_Table_Entry
2430                        (Strval (Interface_Name (Def_Id)));
2431                      Write_Str (");");
2432                   end if;
2433                end;
2434             end if;
2435
2436          when N_Object_Renaming_Declaration =>
2437             Write_Indent;
2438             Set_Debug_Sloc;
2439             Sprint_Node (Defining_Identifier (Node));
2440             Write_Str (" : ");
2441
2442             --  Ada 2005 (AI-230): Access renamings
2443
2444             if Present (Access_Definition (Node)) then
2445                Sprint_Node (Access_Definition (Node));
2446
2447             elsif Present (Subtype_Mark (Node)) then
2448
2449                --  Ada 2005 (AI-423): Object renaming with a null exclusion
2450
2451                if Null_Exclusion_Present (Node) then
2452                   Write_Str ("not null ");
2453                end if;
2454
2455                Sprint_Node (Subtype_Mark (Node));
2456
2457             else
2458                Write_Str (" ??? ");
2459             end if;
2460
2461             Write_Str_With_Col_Check (" renames ");
2462             Sprint_Node (Name (Node));
2463             Write_Char (';');
2464
2465          when N_Op_Abs =>
2466             Write_Operator (Node, "abs ");
2467             Sprint_Right_Opnd (Node);
2468
2469          when N_Op_Add =>
2470             Sprint_Left_Opnd (Node);
2471             Write_Operator (Node, " + ");
2472             Sprint_Right_Opnd (Node);
2473
2474          when N_Op_And =>
2475             Sprint_Left_Opnd (Node);
2476             Write_Operator (Node, " and ");
2477             Sprint_Right_Opnd (Node);
2478
2479          when N_Op_Concat =>
2480             Sprint_Left_Opnd (Node);
2481             Write_Operator (Node, " & ");
2482             Sprint_Right_Opnd (Node);
2483
2484          when N_Op_Divide =>
2485             Sprint_Left_Opnd (Node);
2486             Write_Char (' ');
2487             Process_TFAI_RR_Flags (Node);
2488             Write_Operator (Node, "/ ");
2489             Sprint_Right_Opnd (Node);
2490
2491          when N_Op_Eq =>
2492             Sprint_Left_Opnd (Node);
2493             Write_Operator (Node, " = ");
2494             Sprint_Right_Opnd (Node);
2495
2496          when N_Op_Expon =>
2497             Sprint_Left_Opnd (Node);
2498             Write_Operator (Node, " ** ");
2499             Sprint_Right_Opnd (Node);
2500
2501          when N_Op_Ge =>
2502             Sprint_Left_Opnd (Node);
2503             Write_Operator (Node, " >= ");
2504             Sprint_Right_Opnd (Node);
2505
2506          when N_Op_Gt =>
2507             Sprint_Left_Opnd (Node);
2508             Write_Operator (Node, " > ");
2509             Sprint_Right_Opnd (Node);
2510
2511          when N_Op_Le =>
2512             Sprint_Left_Opnd (Node);
2513             Write_Operator (Node, " <= ");
2514             Sprint_Right_Opnd (Node);
2515
2516          when N_Op_Lt =>
2517             Sprint_Left_Opnd (Node);
2518             Write_Operator (Node, " < ");
2519             Sprint_Right_Opnd (Node);
2520
2521          when N_Op_Minus =>
2522             Write_Operator (Node, "-");
2523             Sprint_Right_Opnd (Node);
2524
2525          when N_Op_Mod =>
2526             Sprint_Left_Opnd (Node);
2527
2528             if Treat_Fixed_As_Integer (Node) then
2529                Write_Str (" #");
2530             end if;
2531
2532             Write_Operator (Node, " mod ");
2533             Sprint_Right_Opnd (Node);
2534
2535          when N_Op_Multiply =>
2536             Sprint_Left_Opnd (Node);
2537             Write_Char (' ');
2538             Process_TFAI_RR_Flags (Node);
2539             Write_Operator (Node, "* ");
2540             Sprint_Right_Opnd (Node);
2541
2542          when N_Op_Ne =>
2543             Sprint_Left_Opnd (Node);
2544             Write_Operator (Node, " /= ");
2545             Sprint_Right_Opnd (Node);
2546
2547          when N_Op_Not =>
2548             Write_Operator (Node, "not ");
2549             Sprint_Right_Opnd (Node);
2550
2551          when N_Op_Or =>
2552             Sprint_Left_Opnd (Node);
2553             Write_Operator (Node, " or ");
2554             Sprint_Right_Opnd (Node);
2555
2556          when N_Op_Plus =>
2557             Write_Operator (Node, "+");
2558             Sprint_Right_Opnd (Node);
2559
2560          when N_Op_Rem =>
2561             Sprint_Left_Opnd (Node);
2562
2563             if Treat_Fixed_As_Integer (Node) then
2564                Write_Str (" #");
2565             end if;
2566
2567             Write_Operator (Node, " rem ");
2568             Sprint_Right_Opnd (Node);
2569
2570          when N_Op_Shift =>
2571             Set_Debug_Sloc;
2572             Write_Id (Node);
2573             Write_Char ('!');
2574             Write_Str_With_Col_Check ("(");
2575             Sprint_Node (Left_Opnd (Node));
2576             Write_Str (", ");
2577             Sprint_Node (Right_Opnd (Node));
2578             Write_Char (')');
2579
2580          when N_Op_Subtract =>
2581             Sprint_Left_Opnd (Node);
2582             Write_Operator (Node, " - ");
2583             Sprint_Right_Opnd (Node);
2584
2585          when N_Op_Xor =>
2586             Sprint_Left_Opnd (Node);
2587             Write_Operator (Node, " xor ");
2588             Sprint_Right_Opnd (Node);
2589
2590          when N_Operator_Symbol =>
2591             Write_Name_With_Col_Check_Sloc (Chars (Node));
2592
2593          when N_Ordinary_Fixed_Point_Definition =>
2594             Write_Str_With_Col_Check_Sloc ("delta ");
2595             Sprint_Node (Delta_Expression (Node));
2596             Sprint_Opt_Node (Real_Range_Specification (Node));
2597
2598          when N_Or_Else =>
2599             Sprint_Left_Opnd (Node);
2600             Write_Str_Sloc (" or else ");
2601             Sprint_Right_Opnd (Node);
2602
2603          when N_Others_Choice =>
2604             if All_Others (Node) then
2605                Write_Str_With_Col_Check ("all ");
2606             end if;
2607
2608             Write_Str_With_Col_Check_Sloc ("others");
2609
2610          when N_Package_Body =>
2611             Extra_Blank_Line;
2612             Write_Indent_Str_Sloc ("package body ");
2613             Sprint_Node (Defining_Unit_Name (Node));
2614             Write_Str (" is");
2615             Sprint_Indented_List (Declarations (Node));
2616
2617             if Present (Handled_Statement_Sequence (Node)) then
2618                Write_Indent_Str ("begin");
2619                Sprint_Node (Handled_Statement_Sequence (Node));
2620             end if;
2621
2622             Write_Indent_Str ("end ");
2623             Sprint_End_Label
2624               (Handled_Statement_Sequence (Node), Defining_Unit_Name (Node));
2625             Write_Char (';');
2626
2627          when N_Package_Body_Stub =>
2628             Write_Indent_Str_Sloc ("package body ");
2629             Sprint_Node (Defining_Identifier (Node));
2630             Write_Str_With_Col_Check (" is separate;");
2631
2632          when N_Package_Declaration =>
2633             Extra_Blank_Line;
2634             Write_Indent;
2635             Sprint_Node_Sloc (Specification (Node));
2636             Write_Char (';');
2637
2638             --  If this is an instantiation, get the aspects from the original
2639             --  instantiation node.
2640
2641             if Is_Generic_Instance (Defining_Entity (Node))
2642               and then Has_Aspects
2643                          (Package_Instantiation (Defining_Entity (Node)))
2644             then
2645                Sprint_Aspect_Specifications
2646                  (Package_Instantiation (Defining_Entity (Node)),
2647                    Semicolon => True);
2648             end if;
2649
2650          when N_Package_Instantiation =>
2651             Extra_Blank_Line;
2652             Write_Indent_Str_Sloc ("package ");
2653             Sprint_Node (Defining_Unit_Name (Node));
2654             Write_Str (" is new ");
2655             Sprint_Node (Name (Node));
2656             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2657             Write_Char (';');
2658
2659          when N_Package_Renaming_Declaration =>
2660             Write_Indent_Str_Sloc ("package ");
2661             Sprint_Node (Defining_Unit_Name (Node));
2662             Write_Str_With_Col_Check (" renames ");
2663             Sprint_Node (Name (Node));
2664             Write_Char (';');
2665
2666          when N_Package_Specification =>
2667             Write_Str_With_Col_Check_Sloc ("package ");
2668             Sprint_Node (Defining_Unit_Name (Node));
2669
2670             if Nkind (Parent (Node)) = N_Generic_Package_Declaration
2671               and then Has_Aspects (Parent (Node))
2672             then
2673                Sprint_Aspect_Specifications
2674                  (Parent (Node), Semicolon => False);
2675
2676             --  An instantiation is rewritten as a package declaration, but
2677             --  the aspects belong to the instantiation node.
2678
2679             elsif Nkind (Parent (Node)) = N_Package_Declaration then
2680                declare
2681                   Pack : constant Entity_Id := Defining_Entity (Node);
2682
2683                begin
2684                   if not Is_Generic_Instance (Pack) then
2685                      if Has_Aspects (Parent (Node)) then
2686                         Sprint_Aspect_Specifications
2687                           (Parent (Node), Semicolon => False);
2688                      end if;
2689                   end if;
2690                end;
2691             end if;
2692
2693             Write_Str (" is");
2694             Sprint_Indented_List (Visible_Declarations (Node));
2695
2696             if Present (Private_Declarations (Node)) then
2697                Write_Indent_Str ("private");
2698                Sprint_Indented_List (Private_Declarations (Node));
2699             end if;
2700
2701             Write_Indent_Str ("end ");
2702             Sprint_Node (Defining_Unit_Name (Node));
2703
2704          when N_Parameter_Association =>
2705             Sprint_Node_Sloc (Selector_Name (Node));
2706             Write_Str (" => ");
2707             Sprint_Node (Explicit_Actual_Parameter (Node));
2708
2709          when N_Parameter_Specification =>
2710             Set_Debug_Sloc;
2711
2712             if Write_Identifiers (Node) then
2713                Write_Str (" : ");
2714
2715                if In_Present (Node) then
2716                   Write_Str_With_Col_Check ("in ");
2717                end if;
2718
2719                if Out_Present (Node) then
2720                   Write_Str_With_Col_Check ("out ");
2721                end if;
2722
2723                --  Ada 2005 (AI-231): Parameter specification may carry null
2724                --  exclusion. Do not print it now if this is an access formal,
2725                --  it is emitted when the access definition is displayed.
2726
2727                if Null_Exclusion_Present (Node)
2728                  and then Nkind (Parameter_Type (Node)) /= N_Access_Definition
2729                then
2730                   Write_Str ("not null ");
2731                end if;
2732
2733                if Aliased_Present (Node) then
2734                   Write_Str ("aliased ");
2735                end if;
2736
2737                Sprint_Node (Parameter_Type (Node));
2738
2739                if Present (Expression (Node)) then
2740                   Write_Str (" := ");
2741                   Sprint_Node (Expression (Node));
2742                end if;
2743             else
2744                Write_Str (", ");
2745             end if;
2746
2747          when N_Pop_Constraint_Error_Label =>
2748             Write_Indent_Str ("%pop_constraint_error_label");
2749
2750          when N_Pop_Program_Error_Label =>
2751             Write_Indent_Str ("%pop_program_error_label");
2752
2753          when N_Pop_Storage_Error_Label =>
2754             Write_Indent_Str ("%pop_storage_error_label");
2755
2756          when N_Private_Extension_Declaration =>
2757             Write_Indent_Str_Sloc ("type ");
2758             Write_Id (Defining_Identifier (Node));
2759
2760             if Present (Discriminant_Specifications (Node)) then
2761                Write_Discr_Specs (Node);
2762             elsif Unknown_Discriminants_Present (Node) then
2763                Write_Str_With_Col_Check ("(<>)");
2764             end if;
2765
2766             Write_Str_With_Col_Check (" is new ");
2767             Sprint_Node (Subtype_Indication (Node));
2768
2769             if Present (Interface_List (Node)) then
2770                Write_Str_With_Col_Check (" and ");
2771                Sprint_And_List (Interface_List (Node));
2772             end if;
2773
2774             Write_Str_With_Col_Check (" with private;");
2775
2776          when N_Private_Type_Declaration =>
2777             Write_Indent_Str_Sloc ("type ");
2778             Write_Id (Defining_Identifier (Node));
2779
2780             if Present (Discriminant_Specifications (Node)) then
2781                Write_Discr_Specs (Node);
2782             elsif Unknown_Discriminants_Present (Node) then
2783                Write_Str_With_Col_Check ("(<>)");
2784             end if;
2785
2786             Write_Str (" is ");
2787
2788             if Tagged_Present (Node) then
2789                Write_Str_With_Col_Check ("tagged ");
2790             end if;
2791
2792             if Limited_Present (Node) then
2793                Write_Str_With_Col_Check ("limited ");
2794             end if;
2795
2796             Write_Str_With_Col_Check ("private;");
2797
2798          when N_Push_Constraint_Error_Label =>
2799             Write_Indent_Str ("%push_constraint_error_label (");
2800
2801             if Present (Exception_Label (Node)) then
2802                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2803             end if;
2804
2805             Write_Str (")");
2806
2807          when N_Push_Program_Error_Label =>
2808             Write_Indent_Str ("%push_program_error_label (");
2809
2810             if Present (Exception_Label (Node)) then
2811                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2812             end if;
2813
2814             Write_Str (")");
2815
2816          when N_Push_Storage_Error_Label =>
2817             Write_Indent_Str ("%push_storage_error_label (");
2818
2819             if Present (Exception_Label (Node)) then
2820                Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2821             end if;
2822
2823             Write_Str (")");
2824
2825          when N_Pragma =>
2826             Write_Indent_Str_Sloc ("pragma ");
2827             Write_Name_With_Col_Check (Pragma_Name (Node));
2828
2829             if Present (Pragma_Argument_Associations (Node)) then
2830                Sprint_Opt_Paren_Comma_List
2831                  (Pragma_Argument_Associations (Node));
2832             end if;
2833
2834             Write_Char (';');
2835
2836          when N_Pragma_Argument_Association =>
2837             Set_Debug_Sloc;
2838
2839             if Chars (Node) /= No_Name then
2840                Write_Name_With_Col_Check (Chars (Node));
2841                Write_Str (" => ");
2842             end if;
2843
2844             Sprint_Node (Expression (Node));
2845
2846          when N_Procedure_Call_Statement =>
2847             Write_Indent;
2848             Set_Debug_Sloc;
2849             Write_Subprogram_Name (Name (Node));
2850             Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
2851             Write_Char (';');
2852
2853          when N_Procedure_Instantiation =>
2854             Write_Indent_Str_Sloc ("procedure ");
2855             Sprint_Node (Defining_Unit_Name (Node));
2856             Write_Str_With_Col_Check (" is new ");
2857             Sprint_Node (Name (Node));
2858             Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2859             Write_Char (';');
2860
2861          when N_Procedure_Specification =>
2862             Write_Str_With_Col_Check_Sloc ("procedure ");
2863             Sprint_Node (Defining_Unit_Name (Node));
2864             Write_Param_Specs (Node);
2865
2866          when N_Protected_Body =>
2867             Write_Indent_Str_Sloc ("protected body ");
2868             Write_Id (Defining_Identifier (Node));
2869             Write_Str (" is");
2870             Sprint_Indented_List (Declarations (Node));
2871             Write_Indent_Str ("end ");
2872             Write_Id (Defining_Identifier (Node));
2873             Write_Char (';');
2874
2875          when N_Protected_Body_Stub =>
2876             Write_Indent_Str_Sloc ("protected body ");
2877             Write_Id (Defining_Identifier (Node));
2878             Write_Str_With_Col_Check (" is separate;");
2879
2880          when N_Protected_Definition =>
2881             Set_Debug_Sloc;
2882             Sprint_Indented_List (Visible_Declarations (Node));
2883
2884             if Present (Private_Declarations (Node)) then
2885                Write_Indent_Str ("private");
2886                Sprint_Indented_List (Private_Declarations (Node));
2887             end if;
2888
2889             Write_Indent_Str ("end ");
2890
2891          when N_Protected_Type_Declaration =>
2892             Write_Indent_Str_Sloc ("protected type ");
2893             Sprint_Node (Defining_Identifier (Node));
2894             Write_Discr_Specs (Node);
2895
2896             if Present (Interface_List (Node)) then
2897                Write_Str (" is new ");
2898                Sprint_And_List (Interface_List (Node));
2899                Write_Str (" with ");
2900             else
2901                Write_Str (" is");
2902             end if;
2903
2904             Sprint_Node (Protected_Definition (Node));
2905             Write_Id (Defining_Identifier (Node));
2906             Write_Char (';');
2907
2908          when N_Qualified_Expression =>
2909             Sprint_Node (Subtype_Mark (Node));
2910             Write_Char_Sloc (''');
2911
2912             --  Print expression, make sure we have at least one level of
2913             --  parentheses around the expression. For cases of qualified
2914             --  expressions in the source, this is always the case, but
2915             --  for generated qualifications, there may be no explicit
2916             --  parentheses present.
2917
2918             if Paren_Count (Expression (Node)) /= 0 then
2919                Sprint_Node (Expression (Node));
2920
2921             else
2922                Write_Char ('(');
2923                Sprint_Node (Expression (Node));
2924
2925                --  Odd case, for the qualified expressions used in machine
2926                --  code the argument may be a procedure call, resulting in
2927                --  a junk semicolon before the right parent, get rid of it.
2928
2929                Write_Erase_Char (';');
2930
2931                --  Now we can add the terminating right paren
2932
2933                Write_Char (')');
2934             end if;
2935
2936          when N_Quantified_Expression =>
2937             Write_Str (" for");
2938
2939             if All_Present (Node) then
2940                Write_Str (" all ");
2941             else
2942                Write_Str (" some ");
2943             end if;
2944
2945             if Present (Iterator_Specification (Node)) then
2946                Sprint_Node (Iterator_Specification (Node));
2947             else
2948                Sprint_Node (Loop_Parameter_Specification (Node));
2949             end if;
2950
2951             Write_Str (" => ");
2952             Sprint_Node (Condition (Node));
2953
2954          when N_Raise_Expression =>
2955             declare
2956                Has_Parens : constant Boolean := Paren_Count (Node) > 0;
2957
2958             begin
2959                --  The syntax for raise_expression does not include parentheses
2960                --  but sometimes parentheses are required, so unconditionally
2961                --  generate them here unless already present.
2962
2963                if not Has_Parens then
2964                   Write_Char ('(');
2965                end if;
2966
2967                Write_Str_With_Col_Check_Sloc ("raise ");
2968                Sprint_Node (Name (Node));
2969
2970                if Present (Expression (Node)) then
2971                   Write_Str_With_Col_Check (" with ");
2972                   Sprint_Node (Expression (Node));
2973                end if;
2974
2975                if not Has_Parens then
2976                   Write_Char (')');
2977                end if;
2978             end;
2979
2980          when N_Raise_Constraint_Error =>
2981
2982             --  This node can be used either as a subexpression or as a
2983             --  statement form. The following test is a reasonably reliable
2984             --  way to distinguish the two cases.
2985
2986             if Is_List_Member (Node)
2987               and then Nkind (Parent (Node)) not in N_Subexpr
2988             then
2989                Write_Indent;
2990             end if;
2991
2992             Write_Str_With_Col_Check_Sloc ("[constraint_error");
2993             Write_Condition_And_Reason (Node);
2994
2995          when N_Raise_Program_Error =>
2996
2997             --  This node can be used either as a subexpression or as a
2998             --  statement form. The following test is a reasonably reliable
2999             --  way to distinguish the two cases.
3000
3001             if Is_List_Member (Node)
3002               and then Nkind (Parent (Node)) not in N_Subexpr
3003             then
3004                Write_Indent;
3005             end if;
3006
3007             Write_Str_With_Col_Check_Sloc ("[program_error");
3008             Write_Condition_And_Reason (Node);
3009
3010          when N_Raise_Storage_Error =>
3011
3012             --  This node can be used either as a subexpression or as a
3013             --  statement form. The following test is a reasonably reliable
3014             --  way to distinguish the two cases.
3015
3016             if Is_List_Member (Node)
3017               and then Nkind (Parent (Node)) not in N_Subexpr
3018             then
3019                Write_Indent;
3020             end if;
3021
3022             Write_Str_With_Col_Check_Sloc ("[storage_error");
3023             Write_Condition_And_Reason (Node);
3024
3025          when N_Raise_Statement =>
3026             Write_Indent_Str_Sloc ("raise ");
3027             Sprint_Node (Name (Node));
3028
3029             if Present (Expression (Node)) then
3030                Write_Str_With_Col_Check_Sloc (" with ");
3031                Sprint_Node (Expression (Node));
3032             end if;
3033
3034             Write_Char (';');
3035
3036          when N_Range =>
3037             Sprint_Node (Low_Bound (Node));
3038             Write_Str_Sloc (" .. ");
3039             Sprint_Node (High_Bound (Node));
3040             Update_Itype (Node);
3041
3042          when N_Range_Constraint =>
3043             Write_Str_With_Col_Check_Sloc ("range ");
3044             Sprint_Node (Range_Expression (Node));
3045
3046          when N_Real_Literal =>
3047             Write_Ureal_With_Col_Check_Sloc (Realval (Node));
3048
3049          when N_Real_Range_Specification =>
3050             Write_Str_With_Col_Check_Sloc ("range ");
3051             Sprint_Node (Low_Bound (Node));
3052             Write_Str (" .. ");
3053             Sprint_Node (High_Bound (Node));
3054
3055          when N_Record_Definition =>
3056             if Abstract_Present (Node) then
3057                Write_Str_With_Col_Check ("abstract ");
3058             end if;
3059
3060             if Tagged_Present (Node) then
3061                Write_Str_With_Col_Check ("tagged ");
3062             end if;
3063
3064             if Limited_Present (Node) then
3065                Write_Str_With_Col_Check ("limited ");
3066             end if;
3067
3068             if Null_Present (Node) then
3069                Write_Str_With_Col_Check_Sloc ("null record");
3070
3071             else
3072                Write_Str_With_Col_Check_Sloc ("record");
3073                Sprint_Node (Component_List (Node));
3074                Write_Indent_Str ("end record");
3075             end if;
3076
3077          when N_Record_Representation_Clause =>
3078             Write_Indent_Str_Sloc ("for ");
3079             Sprint_Node (Identifier (Node));
3080             Write_Str_With_Col_Check (" use record ");
3081
3082             if Present (Mod_Clause (Node)) then
3083                Sprint_Node (Mod_Clause (Node));
3084             end if;
3085
3086             Sprint_Indented_List (Component_Clauses (Node));
3087             Write_Indent_Str ("end record;");
3088
3089          when N_Reference =>
3090             Sprint_Node (Prefix (Node));
3091             Write_Str_With_Col_Check_Sloc ("'reference");
3092
3093          when N_Requeue_Statement =>
3094             Write_Indent_Str_Sloc ("requeue ");
3095             Sprint_Node (Name (Node));
3096
3097             if Abort_Present (Node) then
3098                Write_Str_With_Col_Check (" with abort");
3099             end if;
3100
3101             Write_Char (';');
3102
3103          --  Don't we want to print more detail???
3104
3105          --  Doc of this extended syntax belongs in sinfo.ads and/or
3106          --  sprint.ads ???
3107
3108          when N_SCIL_Dispatch_Table_Tag_Init =>
3109             Write_Indent_Str ("[N_SCIL_Dispatch_Table_Tag_Init]");
3110
3111          when N_SCIL_Dispatching_Call =>
3112             Write_Indent_Str ("[N_SCIL_Dispatching_Node]");
3113
3114          when N_SCIL_Membership_Test =>
3115             Write_Indent_Str ("[N_SCIL_Membership_Test]");
3116
3117          when N_Simple_Return_Statement =>
3118             if Present (Expression (Node)) then
3119                Write_Indent_Str_Sloc ("return ");
3120                Sprint_Node (Expression (Node));
3121                Write_Char (';');
3122             else
3123                Write_Indent_Str_Sloc ("return;");
3124             end if;
3125
3126          when N_Selective_Accept =>
3127             Write_Indent_Str_Sloc ("select");
3128
3129             declare
3130                Alt_Node : Node_Id;
3131             begin
3132                Alt_Node := First (Select_Alternatives (Node));
3133                loop
3134                   Indent_Begin;
3135                   Sprint_Node (Alt_Node);
3136                   Indent_End;
3137                   Next (Alt_Node);
3138                   exit when No (Alt_Node);
3139                   Write_Indent_Str ("or");
3140                end loop;
3141             end;
3142
3143             if Present (Else_Statements (Node)) then
3144                Write_Indent_Str ("else");
3145                Sprint_Indented_List (Else_Statements (Node));
3146             end if;
3147
3148             Write_Indent_Str ("end select;");
3149
3150          when N_Signed_Integer_Type_Definition =>
3151             Write_Str_With_Col_Check_Sloc ("range ");
3152             Sprint_Node (Low_Bound (Node));
3153             Write_Str (" .. ");
3154             Sprint_Node (High_Bound (Node));
3155
3156          when N_Single_Protected_Declaration =>
3157             Write_Indent_Str_Sloc ("protected ");
3158             Write_Id (Defining_Identifier (Node));
3159             Write_Str (" is");
3160             Sprint_Node (Protected_Definition (Node));
3161             Write_Id (Defining_Identifier (Node));
3162             Write_Char (';');
3163
3164          when N_Single_Task_Declaration =>
3165             Write_Indent_Str_Sloc ("task ");
3166             Sprint_Node (Defining_Identifier (Node));
3167
3168             if Present (Task_Definition (Node)) then
3169                Write_Str (" is");
3170                Sprint_Node (Task_Definition (Node));
3171             end if;
3172
3173             Write_Char (';');
3174
3175          when N_Selected_Component =>
3176             Sprint_Node (Prefix (Node));
3177             Write_Char_Sloc ('.');
3178             Sprint_Node (Selector_Name (Node));
3179
3180          when N_Slice =>
3181             Set_Debug_Sloc;
3182             Sprint_Node (Prefix (Node));
3183             Write_Str_With_Col_Check (" (");
3184             Sprint_Node (Discrete_Range (Node));
3185             Write_Char (')');
3186
3187          when N_String_Literal =>
3188             if String_Length (Strval (Node)) + Column > Sprint_Line_Limit then
3189                Write_Indent_Str ("  ");
3190             end if;
3191
3192             Set_Debug_Sloc;
3193             Write_String_Table_Entry (Strval (Node));
3194
3195          when N_Subprogram_Body =>
3196
3197             --  Output extra blank line unless we are in freeze actions
3198
3199             if Freeze_Indent = 0 then
3200                Extra_Blank_Line;
3201             end if;
3202
3203             Write_Indent;
3204
3205             if Present (Corresponding_Spec (Node)) then
3206                Sprint_Node_Sloc (Parent (Corresponding_Spec (Node)));
3207             else
3208                Sprint_Node_Sloc (Specification (Node));
3209             end if;
3210
3211             Write_Str (" is");
3212
3213             Sprint_Indented_List (Declarations (Node));
3214             Write_Indent_Str ("begin");
3215             Sprint_Node (Handled_Statement_Sequence (Node));
3216
3217             Write_Indent_Str ("end ");
3218
3219             Sprint_End_Label
3220               (Handled_Statement_Sequence (Node),
3221                  Defining_Unit_Name (Specification (Node)));
3222             Write_Char (';');
3223
3224             if Is_List_Member (Node)
3225               and then Present (Next (Node))
3226               and then Nkind (Next (Node)) /= N_Subprogram_Body
3227             then
3228                Write_Indent;
3229             end if;
3230
3231          when N_Subprogram_Body_Stub =>
3232             Write_Indent;
3233             Sprint_Node_Sloc (Specification (Node));
3234             Write_Str_With_Col_Check (" is separate;");
3235
3236          when N_Subprogram_Declaration =>
3237             Write_Indent;
3238             Sprint_Node_Sloc (Specification (Node));
3239
3240             if Nkind (Specification (Node)) = N_Procedure_Specification
3241               and then Null_Present (Specification (Node))
3242             then
3243                Write_Str_With_Col_Check (" is null");
3244             end if;
3245
3246             Write_Char (';');
3247
3248          when N_Subprogram_Renaming_Declaration =>
3249             Write_Indent;
3250             Sprint_Node (Specification (Node));
3251             Write_Str_With_Col_Check_Sloc (" renames ");
3252             Sprint_Node (Name (Node));
3253             Write_Char (';');
3254
3255          when N_Subtype_Declaration =>
3256             Write_Indent_Str_Sloc ("subtype ");
3257             Sprint_Node (Defining_Identifier (Node));
3258             Write_Str (" is ");
3259
3260             --  Ada 2005 (AI-231)
3261
3262             if Null_Exclusion_Present (Node) then
3263                Write_Str ("not null ");
3264             end if;
3265
3266             Sprint_Node (Subtype_Indication (Node));
3267             Write_Char (';');
3268
3269          when N_Subtype_Indication =>
3270             Sprint_Node_Sloc (Subtype_Mark (Node));
3271             Write_Char (' ');
3272             Sprint_Node (Constraint (Node));
3273
3274          when N_Subunit =>
3275             Write_Indent_Str_Sloc ("separate (");
3276             Sprint_Node (Name (Node));
3277             Write_Char (')');
3278             Extra_Blank_Line;
3279             Sprint_Node (Proper_Body (Node));
3280
3281          when N_Task_Body =>
3282             Write_Indent_Str_Sloc ("task body ");
3283             Write_Id (Defining_Identifier (Node));
3284             Write_Str (" is");
3285             Sprint_Indented_List (Declarations (Node));
3286             Write_Indent_Str ("begin");
3287             Sprint_Node (Handled_Statement_Sequence (Node));
3288             Write_Indent_Str ("end ");
3289             Sprint_End_Label
3290               (Handled_Statement_Sequence (Node), Defining_Identifier (Node));
3291             Write_Char (';');
3292
3293          when N_Task_Body_Stub =>
3294             Write_Indent_Str_Sloc ("task body ");
3295             Write_Id (Defining_Identifier (Node));
3296             Write_Str_With_Col_Check (" is separate;");
3297
3298          when N_Task_Definition =>
3299             Set_Debug_Sloc;
3300             Sprint_Indented_List (Visible_Declarations (Node));
3301
3302             if Present (Private_Declarations (Node)) then
3303                Write_Indent_Str ("private");
3304                Sprint_Indented_List (Private_Declarations (Node));
3305             end if;
3306
3307             Write_Indent_Str ("end ");
3308             Sprint_End_Label (Node, Defining_Identifier (Parent (Node)));
3309
3310          when N_Task_Type_Declaration =>
3311             Write_Indent_Str_Sloc ("task type ");
3312             Sprint_Node (Defining_Identifier (Node));
3313             Write_Discr_Specs (Node);
3314
3315             if Present (Interface_List (Node)) then
3316                Write_Str (" is new ");
3317                Sprint_And_List (Interface_List (Node));
3318             end if;
3319
3320             if Present (Task_Definition (Node)) then
3321                if No (Interface_List (Node)) then
3322                   Write_Str (" is");
3323                else
3324                   Write_Str (" with ");
3325                end if;
3326
3327                Sprint_Node (Task_Definition (Node));
3328             end if;
3329
3330             Write_Char (';');
3331
3332          when N_Terminate_Alternative =>
3333             Sprint_Node_List (Pragmas_Before (Node));
3334             Write_Indent;
3335
3336             if Present (Condition (Node)) then
3337                Write_Str_With_Col_Check ("when ");
3338                Sprint_Node (Condition (Node));
3339                Write_Str (" => ");
3340             end if;
3341
3342             Write_Str_With_Col_Check_Sloc ("terminate;");
3343             Sprint_Node_List (Pragmas_After (Node));
3344
3345          when N_Timed_Entry_Call =>
3346             Write_Indent_Str_Sloc ("select");
3347             Indent_Begin;
3348             Sprint_Node (Entry_Call_Alternative (Node));
3349             Indent_End;
3350             Write_Indent_Str ("or");
3351             Indent_Begin;
3352             Sprint_Node (Delay_Alternative (Node));
3353             Indent_End;
3354             Write_Indent_Str ("end select;");
3355
3356          when N_Triggering_Alternative =>
3357             Sprint_Node_List (Pragmas_Before (Node));
3358             Sprint_Node_Sloc (Triggering_Statement (Node));
3359             Sprint_Node_List (Statements (Node));
3360
3361          when N_Type_Conversion =>
3362             Set_Debug_Sloc;
3363             Sprint_Node (Subtype_Mark (Node));
3364             Col_Check (4);
3365
3366             if Conversion_OK (Node) then
3367                Write_Char ('?');
3368             end if;
3369
3370             if Float_Truncate (Node) then
3371                Write_Char ('^');
3372             end if;
3373
3374             if Rounded_Result (Node) then
3375                Write_Char ('@');
3376             end if;
3377
3378             Write_Char ('(');
3379             Sprint_Node (Expression (Node));
3380             Write_Char (')');
3381
3382          when N_Unchecked_Expression =>
3383             Col_Check (10);
3384             Write_Str ("`(");
3385             Sprint_Node_Sloc (Expression (Node));
3386             Write_Char (')');
3387
3388          when N_Unchecked_Type_Conversion =>
3389             Sprint_Node (Subtype_Mark (Node));
3390             Write_Char ('!');
3391             Write_Str_With_Col_Check ("(");
3392             Sprint_Node_Sloc (Expression (Node));
3393             Write_Char (')');
3394
3395          when N_Unconstrained_Array_Definition =>
3396             Write_Str_With_Col_Check_Sloc ("array (");
3397
3398             declare
3399                Node1 : Node_Id;
3400             begin
3401                Node1 := First (Subtype_Marks (Node));
3402                loop
3403                   Sprint_Node (Node1);
3404                   Write_Str_With_Col_Check (" range <>");
3405                   Next (Node1);
3406                   exit when Node1 = Empty;
3407                   Write_Str (", ");
3408                end loop;
3409             end;
3410
3411             Write_Str (") of ");
3412             Sprint_Node (Component_Definition (Node));
3413
3414          when N_Unused_At_Start | N_Unused_At_End =>
3415             Write_Indent_Str ("***** Error, unused node encountered *****");
3416             Write_Eol;
3417
3418          when N_Use_Package_Clause =>
3419             Write_Indent_Str_Sloc ("use ");
3420             Sprint_Comma_List (Names (Node));
3421             Write_Char (';');
3422
3423          when N_Use_Type_Clause =>
3424             Write_Indent_Str_Sloc ("use type ");
3425             Sprint_Comma_List (Subtype_Marks (Node));
3426             Write_Char (';');
3427
3428          when N_Validate_Unchecked_Conversion =>
3429             Write_Indent_Str_Sloc ("validate unchecked_conversion (");
3430             Sprint_Node (Source_Type (Node));
3431             Write_Str (", ");
3432             Sprint_Node (Target_Type (Node));
3433             Write_Str (");");
3434
3435          when N_Variant =>
3436             Write_Indent_Str_Sloc ("when ");
3437             Sprint_Bar_List (Discrete_Choices (Node));
3438             Write_Str (" => ");
3439             Sprint_Node (Component_List (Node));
3440
3441          when N_Variant_Part =>
3442             Indent_Begin;
3443             Write_Indent_Str_Sloc ("case ");
3444             Sprint_Node (Name (Node));
3445             Write_Str (" is ");
3446             Sprint_Indented_List (Variants (Node));
3447             Write_Indent_Str ("end case");
3448             Indent_End;
3449
3450          when N_With_Clause =>
3451
3452             --  Special test, if we are dumping the original tree only,
3453             --  then we want to eliminate the bogus with clauses that
3454             --  correspond to the non-existent children of Text_IO.
3455
3456             if Dump_Original_Only
3457               and then Is_Text_IO_Special_Unit (Name (Node))
3458             then
3459                null;
3460
3461             --  Normal case, output the with clause
3462
3463             else
3464                if First_Name (Node) or else not Dump_Original_Only then
3465
3466                   --  Ada 2005 (AI-50217): Print limited with_clauses
3467
3468                   if Private_Present (Node) and Limited_Present (Node) then
3469                      Write_Indent_Str ("limited private with ");
3470
3471                   elsif Private_Present (Node) then
3472                      Write_Indent_Str ("private with ");
3473
3474                   elsif Limited_Present (Node) then
3475                      Write_Indent_Str ("limited with ");
3476
3477                   else
3478                      Write_Indent_Str ("with ");
3479                   end if;
3480
3481                else
3482                   Write_Str (", ");
3483                end if;
3484
3485                Sprint_Node_Sloc (Name (Node));
3486
3487                if Last_Name (Node) or else not Dump_Original_Only then
3488                   Write_Char (';');
3489                end if;
3490             end if;
3491       end case;
3492
3493       --  Print aspects, except for special case of package declaration,
3494       --  where the aspects are printed inside the package specification.
3495
3496       if Has_Aspects (Node)
3497          and then not Nkind_In (Node, N_Package_Declaration,
3498                                       N_Generic_Package_Declaration)
3499       then
3500          Sprint_Aspect_Specifications (Node, Semicolon => True);
3501       end if;
3502
3503       if Nkind (Node) in N_Subexpr
3504         and then Do_Range_Check (Node)
3505       then
3506          Write_Str ("}");
3507       end if;
3508
3509       for J in 1 .. Paren_Count (Node) loop
3510          Write_Char (')');
3511       end loop;
3512
3513       Dump_Node := Save_Dump_Node;
3514    end Sprint_Node_Actual;
3515
3516    ----------------------
3517    -- Sprint_Node_List --
3518    ----------------------
3519
3520    procedure Sprint_Node_List (List : List_Id; New_Lines : Boolean := False) is
3521       Node : Node_Id;
3522
3523    begin
3524       if Is_Non_Empty_List (List) then
3525          Node := First (List);
3526
3527          loop
3528             Sprint_Node (Node);
3529             Next (Node);
3530             exit when Node = Empty;
3531          end loop;
3532       end if;
3533
3534       if New_Lines and then Column /= 1 then
3535          Write_Eol;
3536       end if;
3537    end Sprint_Node_List;
3538
3539    ----------------------
3540    -- Sprint_Node_Sloc --
3541    ----------------------
3542
3543    procedure Sprint_Node_Sloc (Node : Node_Id) is
3544    begin
3545       Sprint_Node (Node);
3546
3547       if Debug_Generated_Code and then Present (Dump_Node) then
3548          Set_Sloc (Dump_Node, Sloc (Node));
3549          Dump_Node := Empty;
3550       end if;
3551    end Sprint_Node_Sloc;
3552
3553    ---------------------
3554    -- Sprint_Opt_Node --
3555    ---------------------
3556
3557    procedure Sprint_Opt_Node (Node : Node_Id) is
3558    begin
3559       if Present (Node) then
3560          Write_Char (' ');
3561          Sprint_Node (Node);
3562       end if;
3563    end Sprint_Opt_Node;
3564
3565    --------------------------
3566    -- Sprint_Opt_Node_List --
3567    --------------------------
3568
3569    procedure Sprint_Opt_Node_List (List : List_Id) is
3570    begin
3571       if Present (List) then
3572          Sprint_Node_List (List);
3573       end if;
3574    end Sprint_Opt_Node_List;
3575
3576    ---------------------------------
3577    -- Sprint_Opt_Paren_Comma_List --
3578    ---------------------------------
3579
3580    procedure Sprint_Opt_Paren_Comma_List (List : List_Id) is
3581    begin
3582       if Is_Non_Empty_List (List) then
3583          Write_Char (' ');
3584          Sprint_Paren_Comma_List (List);
3585       end if;
3586    end Sprint_Opt_Paren_Comma_List;
3587
3588    -----------------------------
3589    -- Sprint_Paren_Comma_List --
3590    -----------------------------
3591
3592    procedure Sprint_Paren_Comma_List (List : List_Id) is
3593       N           : Node_Id;
3594       Node_Exists : Boolean := False;
3595
3596    begin
3597
3598       if Is_Non_Empty_List (List) then
3599
3600          if Dump_Original_Only then
3601             N := First (List);
3602             while Present (N) loop
3603                if not Is_Rewrite_Insertion (N) then
3604                   Node_Exists := True;
3605                   exit;
3606                end if;
3607
3608                Next (N);
3609             end loop;
3610
3611             if not Node_Exists then
3612                return;
3613             end if;
3614          end if;
3615
3616          Write_Str_With_Col_Check ("(");
3617          Sprint_Comma_List (List);
3618          Write_Char (')');
3619       end if;
3620    end Sprint_Paren_Comma_List;
3621
3622    ----------------------
3623    -- Sprint_Right_Opnd --
3624    ----------------------
3625
3626    procedure Sprint_Right_Opnd (N : Node_Id) is
3627       Opnd : constant Node_Id := Right_Opnd (N);
3628
3629    begin
3630       if Paren_Count (Opnd) /= 0
3631         or else Op_Prec (Nkind (Opnd)) > Op_Prec (Nkind (N))
3632       then
3633          Sprint_Node (Opnd);
3634
3635       else
3636          Write_Char ('(');
3637          Sprint_Node (Opnd);
3638          Write_Char (')');
3639       end if;
3640    end Sprint_Right_Opnd;
3641
3642    ------------------
3643    -- Update_Itype --
3644    ------------------
3645
3646    procedure Update_Itype (Node : Node_Id) is
3647    begin
3648       if Present (Etype (Node))
3649         and then Is_Itype (Etype (Node))
3650         and then Debug_Generated_Code
3651       then
3652          Set_Sloc (Etype (Node), Sloc (Node));
3653       end if;
3654    end Update_Itype;
3655
3656    ---------------------
3657    -- Write_Char_Sloc --
3658    ---------------------
3659
3660    procedure Write_Char_Sloc (C : Character) is
3661    begin
3662       if Debug_Generated_Code and then C /= ' ' then
3663          Set_Debug_Sloc;
3664       end if;
3665
3666       Write_Char (C);
3667    end Write_Char_Sloc;
3668
3669    --------------------------------
3670    -- Write_Condition_And_Reason --
3671    --------------------------------
3672
3673    procedure Write_Condition_And_Reason (Node : Node_Id) is
3674       Cond  : constant Node_Id := Condition (Node);
3675       Image : constant String  := RT_Exception_Code'Image
3676                                     (RT_Exception_Code'Val
3677                                        (UI_To_Int (Reason (Node))));
3678
3679    begin
3680       if Present (Cond) then
3681
3682          --  If condition is a single entity, or NOT with a single entity,
3683          --  output all on one line, since it will likely fit just fine.
3684
3685          if Is_Entity_Name (Cond)
3686            or else (Nkind (Cond) = N_Op_Not
3687                      and then Is_Entity_Name (Right_Opnd (Cond)))
3688          then
3689             Write_Str_With_Col_Check (" when ");
3690             Sprint_Node (Cond);
3691             Write_Char (' ');
3692
3693             --  Otherwise for more complex condition, multiple lines
3694
3695          else
3696             Write_Str_With_Col_Check (" when");
3697             Indent := Indent + 2;
3698             Write_Indent;
3699             Sprint_Node (Cond);
3700             Write_Indent;
3701             Indent := Indent - 2;
3702          end if;
3703
3704       --  If no condition, just need a space (all on one line)
3705
3706       else
3707          Write_Char (' ');
3708       end if;
3709
3710       --  Write the reason
3711
3712       Write_Char ('"');
3713
3714       for J in 4 .. Image'Last loop
3715          if Image (J) = '_' then
3716             Write_Char (' ');
3717          else
3718             Write_Char (Fold_Lower (Image (J)));
3719          end if;
3720       end loop;
3721
3722       Write_Str ("""]");
3723    end Write_Condition_And_Reason;
3724
3725    --------------------------------
3726    -- Write_Corresponding_Source --
3727    --------------------------------
3728
3729    procedure Write_Corresponding_Source (S : String) is
3730       Loc : Source_Ptr;
3731       Src : Source_Buffer_Ptr;
3732
3733    begin
3734       --  Ignore if not in dump source text mode, or if in freeze actions
3735
3736       if Dump_Source_Text and then Freeze_Indent = 0 then
3737
3738          --  Ignore null string
3739
3740          if S = "" then
3741             return;
3742          end if;
3743
3744          --  Ignore space or semicolon at end of given string
3745
3746          if S (S'Last) = ' ' or else S (S'Last) = ';' then
3747             Write_Corresponding_Source (S (S'First .. S'Last - 1));
3748             return;
3749          end if;
3750
3751          --  Loop to look at next lines not yet printed in source file
3752
3753          for L in
3754            Last_Line_Printed + 1 .. Last_Source_Line (Current_Source_File)
3755          loop
3756             Src := Source_Text (Current_Source_File);
3757             Loc := Line_Start (L, Current_Source_File);
3758
3759             --  If comment, keep looking
3760
3761             if Src (Loc .. Loc + 1) = "--" then
3762                null;
3763
3764             --  Search to first non-blank
3765
3766             else
3767                while Src (Loc) not in Line_Terminator loop
3768
3769                   --  Non-blank found
3770
3771                   if Src (Loc) /= ' ' and then Src (Loc) /= ASCII.HT then
3772
3773                      --  Loop through characters in string to see if we match
3774
3775                      for J in S'Range loop
3776
3777                         --  If mismatch, then not the case we are looking for
3778
3779                         if Src (Loc) /= S (J) then
3780                            return;
3781                         end if;
3782
3783                         Loc := Loc + 1;
3784                      end loop;
3785
3786                      --  If we fall through, string matched, if white space or
3787                      --  semicolon after the matched string, this is the case
3788                      --  we are looking for.
3789
3790                      if Src (Loc) in Line_Terminator
3791                        or else Src (Loc) = ' '
3792                        or else Src (Loc) = ASCII.HT
3793                        or else Src (Loc) = ';'
3794                      then
3795                         --  So output source lines up to and including this one
3796
3797                         Write_Source_Lines (L);
3798                         return;
3799                      end if;
3800                   end if;
3801
3802                   Loc := Loc + 1;
3803                end loop;
3804             end if;
3805
3806          --  Line was all blanks, or a comment line, keep looking
3807
3808          end loop;
3809       end if;
3810    end Write_Corresponding_Source;
3811
3812    -----------------------
3813    -- Write_Discr_Specs --
3814    -----------------------
3815
3816    procedure Write_Discr_Specs (N : Node_Id) is
3817       Specs : List_Id;
3818       Spec  : Node_Id;
3819
3820    begin
3821       Specs := Discriminant_Specifications (N);
3822
3823       if Present (Specs) then
3824          Write_Str_With_Col_Check (" (");
3825          Spec := First (Specs);
3826
3827          loop
3828             Sprint_Node (Spec);
3829             Next (Spec);
3830             exit when Spec = Empty;
3831
3832             --  Add semicolon, unless we are printing original tree and the
3833             --  next specification is part of a list (but not the first
3834             --  element of that list)
3835
3836             if not Dump_Original_Only or else not Prev_Ids (Spec) then
3837                Write_Str ("; ");
3838             end if;
3839          end loop;
3840
3841          Write_Char (')');
3842       end if;
3843    end Write_Discr_Specs;
3844
3845    -----------------
3846    -- Write_Ekind --
3847    -----------------
3848
3849    procedure Write_Ekind (E : Entity_Id) is
3850       S : constant String := Entity_Kind'Image (Ekind (E));
3851
3852    begin
3853       Name_Len := S'Length;
3854       Name_Buffer (1 .. Name_Len) := S;
3855       Set_Casing (Mixed_Case);
3856       Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3857    end Write_Ekind;
3858
3859    --------------
3860    -- Write_Id --
3861    --------------
3862
3863    procedure Write_Id (N : Node_Id) is
3864    begin
3865       --  Deal with outputting Itype
3866
3867       --  Note: if we are printing the full tree with -gnatds, then we may
3868       --  end up picking up the Associated_Node link from a generic template
3869       --  here which overlaps the Entity field, but as documented, Write_Itype
3870       --  is defended against junk calls.
3871
3872       if Nkind (N) in N_Entity then
3873          Write_Itype (N);
3874       elsif Nkind (N) in N_Has_Entity then
3875          Write_Itype (Entity (N));
3876       end if;
3877
3878       --  Case of a defining identifier
3879
3880       if Nkind (N) = N_Defining_Identifier then
3881
3882          --  If defining identifier has an interface name (and no
3883          --  address clause), then we output the interface name.
3884
3885          if (Is_Imported (N) or else Is_Exported (N))
3886            and then Present (Interface_Name (N))
3887            and then No (Address_Clause (N))
3888          then
3889             String_To_Name_Buffer (Strval (Interface_Name (N)));
3890             Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3891
3892          --  If no interface name (or inactive because there was
3893          --  an address clause), then just output the Chars name.
3894
3895          else
3896             Write_Name_With_Col_Check (Chars (N));
3897          end if;
3898
3899       --  Case of selector of an expanded name where the expanded name
3900       --  has an associated entity, output this entity. Check that the
3901       --  entity or associated node is of the right kind, see above.
3902
3903       elsif Nkind (Parent (N)) = N_Expanded_Name
3904         and then Selector_Name (Parent (N)) = N
3905         and then Present (Entity_Or_Associated_Node (Parent (N)))
3906         and then Nkind (Entity (Parent (N))) in N_Entity
3907       then
3908          Write_Id (Entity (Parent (N)));
3909
3910       --  For any other node with an associated entity, output it
3911
3912       elsif Nkind (N) in N_Has_Entity
3913         and then Present (Entity_Or_Associated_Node (N))
3914         and then Nkind (Entity_Or_Associated_Node (N)) in N_Entity
3915       then
3916          Write_Id (Entity (N));
3917
3918       --  All other cases, we just print the Chars field
3919
3920       else
3921          Write_Name_With_Col_Check (Chars (N));
3922       end if;
3923    end Write_Id;
3924
3925    -----------------------
3926    -- Write_Identifiers --
3927    -----------------------
3928
3929    function Write_Identifiers (Node : Node_Id) return Boolean is
3930    begin
3931       Sprint_Node (Defining_Identifier (Node));
3932       Update_Itype (Defining_Identifier (Node));
3933
3934       --  The remainder of the declaration must be printed unless we are
3935       --  printing the original tree and this is not the last identifier
3936
3937       return
3938          not Dump_Original_Only or else not More_Ids (Node);
3939
3940    end Write_Identifiers;
3941
3942    ------------------------
3943    -- Write_Implicit_Def --
3944    ------------------------
3945
3946    procedure Write_Implicit_Def (E : Entity_Id) is
3947       Ind : Node_Id;
3948
3949    begin
3950       case Ekind (E) is
3951          when E_Array_Subtype =>
3952             Write_Str_With_Col_Check ("subtype ");
3953             Write_Id (E);
3954             Write_Str_With_Col_Check (" is ");
3955             Write_Id (Base_Type (E));
3956             Write_Str_With_Col_Check (" (");
3957
3958             Ind := First_Index (E);
3959             while Present (Ind) loop
3960                Sprint_Node (Ind);
3961                Next_Index (Ind);
3962
3963                if Present (Ind) then
3964                   Write_Str (", ");
3965                end if;
3966             end loop;
3967
3968             Write_Str (");");
3969
3970          when E_Signed_Integer_Subtype | E_Enumeration_Subtype =>
3971             Write_Str_With_Col_Check ("subtype ");
3972             Write_Id (E);
3973             Write_Str (" is ");
3974             Write_Id (Etype (E));
3975             Write_Str_With_Col_Check (" range ");
3976             Sprint_Node (Scalar_Range (E));
3977             Write_Str (";");
3978
3979          when others =>
3980             Write_Str_With_Col_Check ("type ");
3981             Write_Id (E);
3982             Write_Str_With_Col_Check (" is <");
3983             Write_Ekind (E);
3984             Write_Str (">;");
3985       end case;
3986
3987    end Write_Implicit_Def;
3988
3989    ------------------
3990    -- Write_Indent --
3991    ------------------
3992
3993    procedure Write_Indent is
3994       Loc : constant Source_Ptr := Sloc (Dump_Node);
3995
3996    begin
3997       if Indent_Annull_Flag then
3998          Indent_Annull_Flag := False;
3999       else
4000          --  Deal with Dump_Source_Text output. Note that we ignore implicit
4001          --  label declarations, since they typically have the sloc of the
4002          --  corresponding label, which really messes up the -gnatL output.
4003
4004          if Dump_Source_Text
4005            and then Loc > No_Location
4006            and then Nkind (Dump_Node) /= N_Implicit_Label_Declaration
4007          then
4008             if Get_Source_File_Index (Loc) = Current_Source_File then
4009                Write_Source_Lines
4010                  (Get_Physical_Line_Number (Sloc (Dump_Node)));
4011             end if;
4012          end if;
4013
4014          Write_Eol;
4015
4016          for J in 1 .. Indent loop
4017             Write_Char (' ');
4018          end loop;
4019       end if;
4020    end Write_Indent;
4021
4022    ------------------------------
4023    -- Write_Indent_Identifiers --
4024    ------------------------------
4025
4026    function Write_Indent_Identifiers (Node : Node_Id) return Boolean is
4027    begin
4028       --  We need to start a new line for every node, except in the case
4029       --  where we are printing the original tree and this is not the first
4030       --  defining identifier in the list.
4031
4032       if not Dump_Original_Only or else not Prev_Ids (Node) then
4033          Write_Indent;
4034
4035       --  If printing original tree and this is not the first defining
4036       --  identifier in the list, then the previous call to this procedure
4037       --  printed only the name, and we add a comma to separate the names.
4038
4039       else
4040          Write_Str (", ");
4041       end if;
4042
4043       Sprint_Node (Defining_Identifier (Node));
4044
4045       --  The remainder of the declaration must be printed unless we are
4046       --  printing the original tree and this is not the last identifier
4047
4048       return
4049          not Dump_Original_Only or else not More_Ids (Node);
4050    end Write_Indent_Identifiers;
4051
4052    -----------------------------------
4053    -- Write_Indent_Identifiers_Sloc --
4054    -----------------------------------
4055
4056    function Write_Indent_Identifiers_Sloc (Node : Node_Id) return Boolean is
4057    begin
4058       --  We need to start a new line for every node, except in the case
4059       --  where we are printing the original tree and this is not the first
4060       --  defining identifier in the list.
4061
4062       if not Dump_Original_Only or else not Prev_Ids (Node) then
4063          Write_Indent;
4064
4065       --  If printing original tree and this is not the first defining
4066       --  identifier in the list, then the previous call to this procedure
4067       --  printed only the name, and we add a comma to separate the names.
4068
4069       else
4070          Write_Str (", ");
4071       end if;
4072
4073       Set_Debug_Sloc;
4074       Sprint_Node (Defining_Identifier (Node));
4075
4076       --  The remainder of the declaration must be printed unless we are
4077       --  printing the original tree and this is not the last identifier
4078
4079       return not Dump_Original_Only or else not More_Ids (Node);
4080    end Write_Indent_Identifiers_Sloc;
4081
4082    ----------------------
4083    -- Write_Indent_Str --
4084    ----------------------
4085
4086    procedure Write_Indent_Str (S : String) is
4087    begin
4088       Write_Corresponding_Source (S);
4089       Write_Indent;
4090       Write_Str (S);
4091    end Write_Indent_Str;
4092
4093    ---------------------------
4094    -- Write_Indent_Str_Sloc --
4095    ---------------------------
4096
4097    procedure Write_Indent_Str_Sloc (S : String) is
4098    begin
4099       Write_Corresponding_Source (S);
4100       Write_Indent;
4101       Write_Str_Sloc (S);
4102    end Write_Indent_Str_Sloc;
4103
4104    -----------------
4105    -- Write_Itype --
4106    -----------------
4107
4108    procedure Write_Itype (Typ : Entity_Id) is
4109
4110       procedure Write_Header (T : Boolean := True);
4111       --  Write type if T is True, subtype if T is false
4112
4113       ------------------
4114       -- Write_Header --
4115       ------------------
4116
4117       procedure Write_Header (T : Boolean := True) is
4118       begin
4119          if T then
4120             Write_Str ("[type ");
4121          else
4122             Write_Str ("[subtype ");
4123          end if;
4124
4125          Write_Name_With_Col_Check (Chars (Typ));
4126          Write_Str (" is ");
4127       end Write_Header;
4128
4129    --  Start of processing for Write_Itype
4130
4131    begin
4132       if Nkind (Typ) in N_Entity
4133         and then Is_Itype (Typ)
4134         and then not Itype_Printed (Typ)
4135       then
4136          --  Itype to be printed
4137
4138          declare
4139             B : constant Node_Id := Etype (Typ);
4140             X : Node_Id;
4141             P : constant Node_Id := Parent (Typ);
4142
4143             S : constant Saved_Output_Buffer := Save_Output_Buffer;
4144             --  Save current output buffer
4145
4146             Old_Sloc : Source_Ptr;
4147             --  Save sloc of related node, so it is not modified when
4148             --  printing with -gnatD.
4149
4150          begin
4151             --  Write indentation at start of line
4152
4153             for J in 1 .. Indent loop
4154                Write_Char (' ');
4155             end loop;
4156
4157             --  If we have a constructed declaration for the itype, print it
4158
4159             if Present (P)
4160               and then Nkind (P) in N_Declaration
4161               and then Defining_Entity (P) = Typ
4162             then
4163                --  We must set Itype_Printed true before the recursive call to
4164                --  print the node, otherwise we get an infinite recursion.
4165
4166                Set_Itype_Printed (Typ, True);
4167
4168                --  Write the declaration enclosed in [], avoiding new line
4169                --  at start of declaration, and semicolon at end.
4170
4171                --  Note: The itype may be imported from another unit, in which
4172                --  case we do not want to modify the Sloc of the declaration.
4173                --  Otherwise the itype may appear to be in the current unit,
4174                --  and the back-end will reject a reference out of scope.
4175
4176                Write_Char ('[');
4177                Indent_Annull_Flag := True;
4178                Old_Sloc := Sloc (P);
4179                Sprint_Node (P);
4180                Set_Sloc (P, Old_Sloc);
4181                Write_Erase_Char (';');
4182
4183             --  If no constructed declaration, then we have to concoct the
4184             --  source corresponding to the type entity that we have at hand.
4185
4186             else
4187                case Ekind (Typ) is
4188
4189                   --  Access types and subtypes
4190
4191                   when Access_Kind =>
4192                      Write_Header (Ekind (Typ) = E_Access_Type);
4193
4194                      if Can_Never_Be_Null (Typ) then
4195                         Write_Str ("not null ");
4196                      end if;
4197
4198                      Write_Str ("access ");
4199
4200                      if Is_Access_Constant (Typ) then
4201                         Write_Str ("constant ");
4202                      end if;
4203
4204                      Write_Id (Directly_Designated_Type (Typ));
4205
4206                   --  Array types
4207
4208                   when E_Array_Type =>
4209                      Write_Header;
4210                      Write_Str ("array (");
4211
4212                      X := First_Index (Typ);
4213                      loop
4214                         Sprint_Node (X);
4215
4216                         if not Is_Constrained (Typ) then
4217                            Write_Str (" range <>");
4218                         end if;
4219
4220                         Next_Index (X);
4221                         exit when No (X);
4222                         Write_Str (", ");
4223                      end loop;
4224
4225                      Write_Str (") of ");
4226                      X := Component_Type (Typ);
4227
4228                      --  Preserve sloc of component type, which is defined
4229                      --  elsewhere than the itype (see comment above).
4230
4231                      Old_Sloc := Sloc (X);
4232                      Sprint_Node (X);
4233                      Set_Sloc (X, Old_Sloc);
4234
4235                      --  Array subtypes
4236
4237                      --  Preserve Sloc of index subtypes, as above
4238
4239                   when E_Array_Subtype =>
4240                      Write_Header (False);
4241                      Write_Id (Etype (Typ));
4242                      Write_Str (" (");
4243
4244                      X := First_Index (Typ);
4245                      loop
4246                         Old_Sloc := Sloc (X);
4247                         Sprint_Node (X);
4248                         Set_Sloc (X, Old_Sloc);
4249                         Next_Index (X);
4250                         exit when No (X);
4251                         Write_Str (", ");
4252                      end loop;
4253
4254                      Write_Char (')');
4255
4256                   --  Signed integer types, and modular integer subtypes,
4257                   --  and also enumeration subtypes.
4258
4259                   when E_Signed_Integer_Type     |
4260                        E_Signed_Integer_Subtype  |
4261                        E_Modular_Integer_Subtype |
4262                        E_Enumeration_Subtype     =>
4263
4264                      Write_Header (Ekind (Typ) = E_Signed_Integer_Type);
4265
4266                      if Ekind (Typ) = E_Signed_Integer_Type then
4267                         Write_Str ("new ");
4268                      end if;
4269
4270                      Write_Id (B);
4271
4272                      --  Print bounds if different from base type
4273
4274                      declare
4275                         L  : constant Node_Id := Type_Low_Bound (Typ);
4276                         H  : constant Node_Id := Type_High_Bound (Typ);
4277                         LE : Node_Id;
4278                         HE : Node_Id;
4279
4280                      begin
4281                         --  B can either be a scalar type, in which case the
4282                         --  declaration of Typ may constrain it with different
4283                         --  bounds, or a private type, in which case we know
4284                         --  that the declaration of Typ cannot have a scalar
4285                         --  constraint.
4286
4287                         if Is_Scalar_Type (B) then
4288                            LE := Type_Low_Bound (B);
4289                            HE := Type_High_Bound (B);
4290                         else
4291                            LE := Empty;
4292                            HE := Empty;
4293                         end if;
4294
4295                         if No (LE)
4296                           or else (True
4297                             and then Nkind (L) = N_Integer_Literal
4298                             and then Nkind (H) = N_Integer_Literal
4299                             and then Nkind (LE) = N_Integer_Literal
4300                             and then Nkind (HE) = N_Integer_Literal
4301                             and then UI_Eq (Intval (L), Intval (LE))
4302                             and then UI_Eq (Intval (H), Intval (HE)))
4303                         then
4304                            null;
4305
4306                         else
4307                            Write_Str (" range ");
4308                            Sprint_Node (Type_Low_Bound (Typ));
4309                            Write_Str (" .. ");
4310                            Sprint_Node (Type_High_Bound (Typ));
4311                         end if;
4312                      end;
4313
4314                   --  Modular integer types
4315
4316                   when E_Modular_Integer_Type =>
4317                      Write_Header;
4318                      Write_Str ("mod ");
4319                      Write_Uint_With_Col_Check (Modulus (Typ), Auto);
4320
4321                   --  Floating point types and subtypes
4322
4323                   when E_Floating_Point_Type    |
4324                        E_Floating_Point_Subtype =>
4325
4326                      Write_Header (Ekind (Typ) = E_Floating_Point_Type);
4327
4328                      if Ekind (Typ) = E_Floating_Point_Type then
4329                         Write_Str ("new ");
4330                      end if;
4331
4332                      Write_Id (Etype (Typ));
4333
4334                      if Digits_Value (Typ) /= Digits_Value (Etype (Typ)) then
4335                         Write_Str (" digits ");
4336                         Write_Uint_With_Col_Check
4337                           (Digits_Value (Typ), Decimal);
4338                      end if;
4339
4340                      --  Print bounds if not different from base type
4341
4342                      declare
4343                         L  : constant Node_Id := Type_Low_Bound (Typ);
4344                         H  : constant Node_Id := Type_High_Bound (Typ);
4345                         LE : constant Node_Id := Type_Low_Bound (B);
4346                         HE : constant Node_Id := Type_High_Bound (B);
4347
4348                      begin
4349                         if Nkind (L) = N_Real_Literal
4350                           and then Nkind (H) = N_Real_Literal
4351                           and then Nkind (LE) = N_Real_Literal
4352                           and then Nkind (HE) = N_Real_Literal
4353                           and then UR_Eq (Realval (L), Realval (LE))
4354                           and then UR_Eq (Realval (H), Realval (HE))
4355                         then
4356                            null;
4357
4358                         else
4359                            Write_Str (" range ");
4360                            Sprint_Node (Type_Low_Bound (Typ));
4361                            Write_Str (" .. ");
4362                            Sprint_Node (Type_High_Bound (Typ));
4363                         end if;
4364                      end;
4365
4366                   --  Record subtypes
4367
4368                   when E_Record_Subtype | E_Record_Subtype_With_Private =>
4369                      Write_Header (False);
4370                      Write_Str ("record");
4371                      Indent_Begin;
4372
4373                      declare
4374                         C : Entity_Id;
4375                      begin
4376                         C := First_Entity (Typ);
4377                         while Present (C) loop
4378                            Write_Indent;
4379                            Write_Id (C);
4380                            Write_Str (" : ");
4381                            Write_Id (Etype (C));
4382                            Next_Entity (C);
4383                         end loop;
4384                      end;
4385
4386                      Indent_End;
4387                      Write_Indent_Str (" end record");
4388
4389                   --  Class-Wide types
4390
4391                   when E_Class_Wide_Type    |
4392                        E_Class_Wide_Subtype =>
4393                      Write_Header (Ekind (Typ) = E_Class_Wide_Type);
4394                      Write_Name_With_Col_Check (Chars (Etype (Typ)));
4395                      Write_Str ("'Class");
4396
4397                   --  Subprogram types
4398
4399                   when E_Subprogram_Type =>
4400                      Write_Header;
4401
4402                      if Etype (Typ) = Standard_Void_Type then
4403                         Write_Str ("procedure");
4404                      else
4405                         Write_Str ("function");
4406                      end if;
4407
4408                      if Present (First_Entity (Typ)) then
4409                         Write_Str (" (");
4410
4411                         declare
4412                            Param : Entity_Id;
4413
4414                         begin
4415                            Param := First_Entity (Typ);
4416                            loop
4417                               Write_Id (Param);
4418                               Write_Str (" : ");
4419
4420                               if Ekind (Param) = E_In_Out_Parameter then
4421                                  Write_Str ("in out ");
4422                               elsif Ekind (Param) = E_Out_Parameter then
4423                                  Write_Str ("out ");
4424                               end if;
4425
4426                               Write_Id (Etype (Param));
4427                               Next_Entity (Param);
4428                               exit when No (Param);
4429                               Write_Str (", ");
4430                            end loop;
4431
4432                            Write_Char (')');
4433                         end;
4434                      end if;
4435
4436                      if Etype (Typ) /= Standard_Void_Type then
4437                         Write_Str (" return ");
4438                         Write_Id (Etype (Typ));
4439                      end if;
4440
4441                   when E_String_Literal_Subtype =>
4442                      declare
4443                         LB  : constant Uint :=
4444                                 Expr_Value (String_Literal_Low_Bound (Typ));
4445                         Len : constant Uint :=
4446                                 String_Literal_Length (Typ);
4447                      begin
4448                         Write_Header (False);
4449                         Write_Str ("String (");
4450                         Write_Int (UI_To_Int (LB));
4451                         Write_Str (" .. ");
4452                         Write_Int (UI_To_Int (LB + Len) - 1);
4453                         Write_Str (");");
4454                      end;
4455
4456                   --  For all other Itypes, print ??? (fill in later)
4457
4458                   when others =>
4459                      Write_Header (True);
4460                      Write_Str ("???");
4461
4462                end case;
4463             end if;
4464
4465             --  Add terminating bracket and restore output buffer
4466
4467             Write_Char (']');
4468             Write_Eol;
4469             Restore_Output_Buffer (S);
4470          end;
4471
4472          Set_Itype_Printed (Typ);
4473       end if;
4474    end Write_Itype;
4475
4476    -------------------------------
4477    -- Write_Name_With_Col_Check --
4478    -------------------------------
4479
4480    procedure Write_Name_With_Col_Check (N : Name_Id) is
4481       J : Natural;
4482       K : Natural;
4483       L : Natural;
4484
4485    begin
4486       Get_Name_String (N);
4487
4488       --  Deal with -gnatdI which replaces any sequence Cnnnb where C is an
4489       --  upper case letter, nnn is one or more digits and b is a lower case
4490       --  letter by C...b, so that listings do not depend on serial numbers.
4491
4492       if Debug_Flag_II then
4493          J := 1;
4494          while J < Name_Len - 1 loop
4495             if Name_Buffer (J) in 'A' .. 'Z'
4496               and then Name_Buffer (J + 1) in '0' .. '9'
4497             then
4498                K := J + 1;
4499                while K < Name_Len loop
4500                   exit when Name_Buffer (K) not in '0' .. '9';
4501                   K := K + 1;
4502                end loop;
4503
4504                if Name_Buffer (K) in 'a' .. 'z' then
4505                   L := Name_Len - K + 1;
4506
4507                   Name_Buffer (J + 4 .. J + L + 3) :=
4508                     Name_Buffer (K .. Name_Len);
4509                   Name_Buffer (J + 1 .. J + 3) := "...";
4510                   Name_Len := J + L + 3;
4511                   J := J + 5;
4512
4513                else
4514                   J := K;
4515                end if;
4516
4517             else
4518                J := J + 1;
4519             end if;
4520          end loop;
4521       end if;
4522
4523       --  Fall through for normal case
4524
4525       Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
4526    end Write_Name_With_Col_Check;
4527
4528    ------------------------------------
4529    -- Write_Name_With_Col_Check_Sloc --
4530    ------------------------------------
4531
4532    procedure Write_Name_With_Col_Check_Sloc (N : Name_Id) is
4533    begin
4534       Get_Name_String (N);
4535       Write_Str_With_Col_Check_Sloc (Name_Buffer (1 .. Name_Len));
4536    end Write_Name_With_Col_Check_Sloc;
4537
4538    --------------------
4539    -- Write_Operator --
4540    --------------------
4541
4542    procedure Write_Operator (N : Node_Id; S : String) is
4543       F : Natural := S'First;
4544       T : Natural := S'Last;
4545
4546    begin
4547       --  If no overflow check, just write string out, and we are done
4548
4549       if not Do_Overflow_Check (N) then
4550          Write_Str_Sloc (S);
4551
4552       --  If overflow check, we want to surround the operator with curly
4553       --  brackets, but not include spaces within the brackets.
4554
4555       else
4556          if S (F) = ' ' then
4557             Write_Char (' ');
4558             F := F + 1;
4559          end if;
4560
4561          if S (T) = ' ' then
4562             T := T - 1;
4563          end if;
4564
4565          Write_Char ('{');
4566          Write_Str_Sloc (S (F .. T));
4567          Write_Char ('}');
4568
4569          if S (S'Last) = ' ' then
4570             Write_Char (' ');
4571          end if;
4572       end if;
4573    end Write_Operator;
4574
4575    -----------------------
4576    -- Write_Param_Specs --
4577    -----------------------
4578
4579    procedure Write_Param_Specs (N : Node_Id) is
4580       Specs         : constant List_Id := Parameter_Specifications (N);
4581       Specs_Present : constant Boolean := Is_Non_Empty_List (Specs);
4582
4583       Ent    : Entity_Id;
4584       Extras : Node_Id;
4585       Spec   : Node_Id;
4586       Formal : Node_Id;
4587
4588       Output : Boolean := False;
4589       --  Set true if we output at least one parameter
4590
4591    begin
4592       --  Write out explicit specs from Parameter_Speficiations list
4593
4594       if Specs_Present then
4595          Write_Str_With_Col_Check (" (");
4596          Output := True;
4597
4598          Spec := First (Specs);
4599          loop
4600             Sprint_Node (Spec);
4601             Formal := Defining_Identifier (Spec);
4602             Next (Spec);
4603             exit when Spec = Empty;
4604
4605             --  Add semicolon, unless we are printing original tree and the
4606             --  next specification is part of a list (but not the first element
4607             --  of that list).
4608
4609             if not Dump_Original_Only or else not Prev_Ids (Spec) then
4610                Write_Str ("; ");
4611             end if;
4612          end loop;
4613       end if;
4614
4615       --  See if we have extra formals
4616
4617       if Nkind_In (N, N_Function_Specification,
4618                       N_Procedure_Specification)
4619       then
4620          Ent := Defining_Entity (N);
4621
4622          --  Loop to write extra formals (if any)
4623
4624          if Present (Ent) and then Is_Subprogram (Ent) then
4625             Extras := Extra_Formals (Ent);
4626
4627             if Present (Extras) then
4628                if not Specs_Present then
4629                   Write_Str_With_Col_Check (" (");
4630                   Output := True;
4631                end if;
4632
4633                Formal := Extras;
4634                while Present (Formal) loop
4635                   if Specs_Present or else Formal /= Extras then
4636                      Write_Str ("; ");
4637                   end if;
4638
4639                   Write_Name_With_Col_Check (Chars (Formal));
4640                   Write_Str (" : ");
4641                   Write_Name_With_Col_Check (Chars (Etype (Formal)));
4642                   Formal := Extra_Formal (Formal);
4643                end loop;
4644             end if;
4645          end if;
4646       end if;
4647
4648       if Output then
4649          Write_Char (')');
4650       end if;
4651    end Write_Param_Specs;
4652
4653    -----------------------
4654    -- Write_Rewrite_Str --
4655    -----------------------
4656
4657    procedure Write_Rewrite_Str (S : String) is
4658    begin
4659       if not Dump_Generated_Only then
4660          if S'Length = 3 and then S = ">>>" then
4661             Write_Str (">>>");
4662          else
4663             Write_Str_With_Col_Check (S);
4664          end if;
4665       end if;
4666    end Write_Rewrite_Str;
4667
4668    -----------------------
4669    -- Write_Source_Line --
4670    -----------------------
4671
4672    procedure Write_Source_Line (L : Physical_Line_Number) is
4673       Loc : Source_Ptr;
4674       Src : Source_Buffer_Ptr;
4675       Scn : Source_Ptr;
4676
4677    begin
4678       if Dump_Source_Text then
4679          Src := Source_Text (Current_Source_File);
4680          Loc := Line_Start (L, Current_Source_File);
4681          Write_Eol;
4682
4683          --  See if line is a comment line, if not, and if not line one,
4684          --  precede with blank line.
4685
4686          Scn := Loc;
4687          while Src (Scn) = ' ' or else Src (Scn) = ASCII.HT loop
4688             Scn := Scn + 1;
4689          end loop;
4690
4691          if (Src (Scn) in Line_Terminator
4692               or else Src (Scn .. Scn + 1) /= "--")
4693            and then L /= 1
4694          then
4695             Write_Eol;
4696          end if;
4697
4698          --  Now write the source text of the line
4699
4700          Write_Str ("-- ");
4701          Write_Int (Int (L));
4702          Write_Str (": ");
4703
4704          while Src (Loc) not in Line_Terminator loop
4705             Write_Char (Src (Loc));
4706             Loc := Loc + 1;
4707          end loop;
4708       end if;
4709    end Write_Source_Line;
4710
4711    ------------------------
4712    -- Write_Source_Lines --
4713    ------------------------
4714
4715    procedure Write_Source_Lines (L : Physical_Line_Number) is
4716    begin
4717       while Last_Line_Printed < L loop
4718          Last_Line_Printed := Last_Line_Printed + 1;
4719          Write_Source_Line (Last_Line_Printed);
4720       end loop;
4721    end Write_Source_Lines;
4722
4723    --------------------
4724    -- Write_Str_Sloc --
4725    --------------------
4726
4727    procedure Write_Str_Sloc (S : String) is
4728    begin
4729       for J in S'Range loop
4730          Write_Char_Sloc (S (J));
4731       end loop;
4732    end Write_Str_Sloc;
4733
4734    ------------------------------
4735    -- Write_Str_With_Col_Check --
4736    ------------------------------
4737
4738    procedure Write_Str_With_Col_Check (S : String) is
4739    begin
4740       if Int (S'Last) + Column > Sprint_Line_Limit then
4741          Write_Indent_Str ("  ");
4742
4743          if S (S'First) = ' ' then
4744             Write_Str (S (S'First + 1 .. S'Last));
4745          else
4746             Write_Str (S);
4747          end if;
4748
4749       else
4750          Write_Str (S);
4751       end if;
4752    end Write_Str_With_Col_Check;
4753
4754    -----------------------------------
4755    -- Write_Str_With_Col_Check_Sloc --
4756    -----------------------------------
4757
4758    procedure Write_Str_With_Col_Check_Sloc (S : String) is
4759    begin
4760       if Int (S'Last) + Column > Sprint_Line_Limit then
4761          Write_Indent_Str ("  ");
4762
4763          if S (S'First) = ' ' then
4764             Write_Str_Sloc (S (S'First + 1 .. S'Last));
4765          else
4766             Write_Str_Sloc (S);
4767          end if;
4768
4769       else
4770          Write_Str_Sloc (S);
4771       end if;
4772    end Write_Str_With_Col_Check_Sloc;
4773
4774    ---------------------------
4775    -- Write_Subprogram_Name --
4776    ---------------------------
4777
4778    procedure Write_Subprogram_Name (N : Node_Id) is
4779    begin
4780       if not Comes_From_Source (N)
4781         and then Is_Entity_Name (N)
4782       then
4783          declare
4784             Ent : constant Entity_Id := Entity (N);
4785          begin
4786             if not In_Extended_Main_Source_Unit (Ent)
4787               and then
4788                 Is_Predefined_File_Name
4789                   (Unit_File_Name (Get_Source_Unit (Ent)))
4790             then
4791                --  Run-time routine name, output name with a preceding dollar
4792                --  making sure that we do not get a line split between them.
4793
4794                Col_Check (Length_Of_Name (Chars (Ent)) + 1);
4795                Write_Char ('$');
4796                Write_Name (Chars (Ent));
4797                return;
4798             end if;
4799          end;
4800       end if;
4801
4802       --  Normal case, not a run-time routine name
4803
4804       Sprint_Node (N);
4805    end Write_Subprogram_Name;
4806
4807    -------------------------------
4808    -- Write_Uint_With_Col_Check --
4809    -------------------------------
4810
4811    procedure Write_Uint_With_Col_Check (U : Uint; Format : UI_Format) is
4812    begin
4813       Col_Check (UI_Decimal_Digits_Hi (U));
4814       UI_Write (U, Format);
4815    end Write_Uint_With_Col_Check;
4816
4817    ------------------------------------
4818    -- Write_Uint_With_Col_Check_Sloc --
4819    ------------------------------------
4820
4821    procedure Write_Uint_With_Col_Check_Sloc (U : Uint; Format : UI_Format) is
4822    begin
4823       Col_Check (UI_Decimal_Digits_Hi (U));
4824       Set_Debug_Sloc;
4825       UI_Write (U, Format);
4826    end Write_Uint_With_Col_Check_Sloc;
4827
4828    -------------------------------------
4829    -- Write_Ureal_With_Col_Check_Sloc --
4830    -------------------------------------
4831
4832    procedure Write_Ureal_With_Col_Check_Sloc (U : Ureal) is
4833       D : constant Uint := Denominator (U);
4834       N : constant Uint := Numerator (U);
4835    begin
4836       Col_Check (UI_Decimal_Digits_Hi (D) + UI_Decimal_Digits_Hi (N) + 4);
4837       Set_Debug_Sloc;
4838       UR_Write (U, Brackets => True);
4839    end Write_Ureal_With_Col_Check_Sloc;
4840
4841 end Sprint;