1------------------------------------------------------------------------------
2--                                                                          --
3--                         GNAT COMPILER COMPONENTS                         --
4--                                                                          --
5--                               S P R I N T                                --
6--                                                                          --
7--                                 B o d y                                  --
8--                                                                          --
9--          Copyright (C) 1992-2015, 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
26with Aspects;  use Aspects;
27with Atree;    use Atree;
28with Casing;   use Casing;
29with Csets;    use Csets;
30with Debug;    use Debug;
31with Einfo;    use Einfo;
32with Fname;    use Fname;
33with Lib;      use Lib;
34with Namet;    use Namet;
35with Nlists;   use Nlists;
36with Opt;      use Opt;
37with Output;   use Output;
38with Rtsfind;  use Rtsfind;
39with Sem_Eval; use Sem_Eval;
40with Sem_Util; use Sem_Util;
41with Sinfo;    use Sinfo;
42with Sinput;   use Sinput;
43with Sinput.D; use Sinput.D;
44with Snames;   use Snames;
45with Stand;    use Stand;
46with Stringt;  use Stringt;
47with Uintp;    use Uintp;
48with Uname;    use Uname;
49with Urealp;   use Urealp;
50
51package 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)) then
2389                     Write_Str (" := ");
2390                     Sprint_Node (Expression (Node));
2391                  end if;
2392
2393                  Write_Char (';');
2394
2395                  --  Handle implicit importation and implicit exportation of
2396                  --  object declarations:
2397                  --    $pragma import (Convention_Id, Def_Id, "...");
2398                  --    $pragma export (Convention_Id, Def_Id, "...");
2399
2400                  if Is_Internal (Def_Id)
2401                    and then Present (Interface_Name (Def_Id))
2402                  then
2403                     Write_Indent_Str_Sloc ("$pragma ");
2404
2405                     if Is_Imported (Def_Id) then
2406                        Write_Str ("import (");
2407
2408                     else pragma Assert (Is_Exported (Def_Id));
2409                        Write_Str ("export (");
2410                     end if;
2411
2412                     declare
2413                        Prefix : constant String  := "Convention_";
2414                        S      : constant String  := Convention (Def_Id)'Img;
2415
2416                     begin
2417                        Name_Len := S'Last - Prefix'Last;
2418                        Name_Buffer (1 .. Name_Len) :=
2419                          S (Prefix'Last + 1 .. S'Last);
2420                        Set_Casing (All_Lower_Case);
2421                        Write_Str (Name_Buffer (1 .. Name_Len));
2422                     end;
2423
2424                     Write_Str (", ");
2425                     Write_Id  (Def_Id);
2426                     Write_Str (", ");
2427                     Write_String_Table_Entry
2428                       (Strval (Interface_Name (Def_Id)));
2429                     Write_Str (");");
2430                  end if;
2431               end;
2432            end if;
2433
2434         when N_Object_Renaming_Declaration =>
2435            Write_Indent;
2436            Set_Debug_Sloc;
2437            Sprint_Node (Defining_Identifier (Node));
2438            Write_Str (" : ");
2439
2440            --  Ada 2005 (AI-230): Access renamings
2441
2442            if Present (Access_Definition (Node)) then
2443               Sprint_Node (Access_Definition (Node));
2444
2445            elsif Present (Subtype_Mark (Node)) then
2446
2447               --  Ada 2005 (AI-423): Object renaming with a null exclusion
2448
2449               if Null_Exclusion_Present (Node) then
2450                  Write_Str ("not null ");
2451               end if;
2452
2453               Sprint_Node (Subtype_Mark (Node));
2454
2455            else
2456               Write_Str (" ??? ");
2457            end if;
2458
2459            Write_Str_With_Col_Check (" renames ");
2460            Sprint_Node (Name (Node));
2461            Write_Char (';');
2462
2463         when N_Op_Abs =>
2464            Write_Operator (Node, "abs ");
2465            Sprint_Right_Opnd (Node);
2466
2467         when N_Op_Add =>
2468            Sprint_Left_Opnd (Node);
2469            Write_Operator (Node, " + ");
2470            Sprint_Right_Opnd (Node);
2471
2472         when N_Op_And =>
2473            Sprint_Left_Opnd (Node);
2474            Write_Operator (Node, " and ");
2475            Sprint_Right_Opnd (Node);
2476
2477         when N_Op_Concat =>
2478            Sprint_Left_Opnd (Node);
2479            Write_Operator (Node, " & ");
2480            Sprint_Right_Opnd (Node);
2481
2482         when N_Op_Divide =>
2483            Sprint_Left_Opnd (Node);
2484            Write_Char (' ');
2485            Process_TFAI_RR_Flags (Node);
2486            Write_Operator (Node, "/ ");
2487            Sprint_Right_Opnd (Node);
2488
2489         when N_Op_Eq =>
2490            Sprint_Left_Opnd (Node);
2491            Write_Operator (Node, " = ");
2492            Sprint_Right_Opnd (Node);
2493
2494         when N_Op_Expon =>
2495            Sprint_Left_Opnd (Node);
2496            Write_Operator (Node, " ** ");
2497            Sprint_Right_Opnd (Node);
2498
2499         when N_Op_Ge =>
2500            Sprint_Left_Opnd (Node);
2501            Write_Operator (Node, " >= ");
2502            Sprint_Right_Opnd (Node);
2503
2504         when N_Op_Gt =>
2505            Sprint_Left_Opnd (Node);
2506            Write_Operator (Node, " > ");
2507            Sprint_Right_Opnd (Node);
2508
2509         when N_Op_Le =>
2510            Sprint_Left_Opnd (Node);
2511            Write_Operator (Node, " <= ");
2512            Sprint_Right_Opnd (Node);
2513
2514         when N_Op_Lt =>
2515            Sprint_Left_Opnd (Node);
2516            Write_Operator (Node, " < ");
2517            Sprint_Right_Opnd (Node);
2518
2519         when N_Op_Minus =>
2520            Write_Operator (Node, "-");
2521            Sprint_Right_Opnd (Node);
2522
2523         when N_Op_Mod =>
2524            Sprint_Left_Opnd (Node);
2525
2526            if Treat_Fixed_As_Integer (Node) then
2527               Write_Str (" #");
2528            end if;
2529
2530            Write_Operator (Node, " mod ");
2531            Sprint_Right_Opnd (Node);
2532
2533         when N_Op_Multiply =>
2534            Sprint_Left_Opnd (Node);
2535            Write_Char (' ');
2536            Process_TFAI_RR_Flags (Node);
2537            Write_Operator (Node, "* ");
2538            Sprint_Right_Opnd (Node);
2539
2540         when N_Op_Ne =>
2541            Sprint_Left_Opnd (Node);
2542            Write_Operator (Node, " /= ");
2543            Sprint_Right_Opnd (Node);
2544
2545         when N_Op_Not =>
2546            Write_Operator (Node, "not ");
2547            Sprint_Right_Opnd (Node);
2548
2549         when N_Op_Or =>
2550            Sprint_Left_Opnd (Node);
2551            Write_Operator (Node, " or ");
2552            Sprint_Right_Opnd (Node);
2553
2554         when N_Op_Plus =>
2555            Write_Operator (Node, "+");
2556            Sprint_Right_Opnd (Node);
2557
2558         when N_Op_Rem =>
2559            Sprint_Left_Opnd (Node);
2560
2561            if Treat_Fixed_As_Integer (Node) then
2562               Write_Str (" #");
2563            end if;
2564
2565            Write_Operator (Node, " rem ");
2566            Sprint_Right_Opnd (Node);
2567
2568         when N_Op_Shift =>
2569            Set_Debug_Sloc;
2570            Write_Id (Node);
2571            Write_Char ('!');
2572            Write_Str_With_Col_Check ("(");
2573            Sprint_Node (Left_Opnd (Node));
2574            Write_Str (", ");
2575            Sprint_Node (Right_Opnd (Node));
2576            Write_Char (')');
2577
2578         when N_Op_Subtract =>
2579            Sprint_Left_Opnd (Node);
2580            Write_Operator (Node, " - ");
2581            Sprint_Right_Opnd (Node);
2582
2583         when N_Op_Xor =>
2584            Sprint_Left_Opnd (Node);
2585            Write_Operator (Node, " xor ");
2586            Sprint_Right_Opnd (Node);
2587
2588         when N_Operator_Symbol =>
2589            Write_Name_With_Col_Check_Sloc (Chars (Node));
2590
2591         when N_Ordinary_Fixed_Point_Definition =>
2592            Write_Str_With_Col_Check_Sloc ("delta ");
2593            Sprint_Node (Delta_Expression (Node));
2594            Sprint_Opt_Node (Real_Range_Specification (Node));
2595
2596         when N_Or_Else =>
2597            Sprint_Left_Opnd (Node);
2598            Write_Str_Sloc (" or else ");
2599            Sprint_Right_Opnd (Node);
2600
2601         when N_Others_Choice =>
2602            if All_Others (Node) then
2603               Write_Str_With_Col_Check ("all ");
2604            end if;
2605
2606            Write_Str_With_Col_Check_Sloc ("others");
2607
2608         when N_Package_Body =>
2609            Extra_Blank_Line;
2610            Write_Indent_Str_Sloc ("package body ");
2611            Sprint_Node (Defining_Unit_Name (Node));
2612            Write_Str (" is");
2613            Sprint_Indented_List (Declarations (Node));
2614
2615            if Present (Handled_Statement_Sequence (Node)) then
2616               Write_Indent_Str ("begin");
2617               Sprint_Node (Handled_Statement_Sequence (Node));
2618            end if;
2619
2620            Write_Indent_Str ("end ");
2621            Sprint_End_Label
2622              (Handled_Statement_Sequence (Node), Defining_Unit_Name (Node));
2623            Write_Char (';');
2624
2625         when N_Package_Body_Stub =>
2626            Write_Indent_Str_Sloc ("package body ");
2627            Sprint_Node (Defining_Identifier (Node));
2628            Write_Str_With_Col_Check (" is separate;");
2629
2630         when N_Package_Declaration =>
2631            Extra_Blank_Line;
2632            Write_Indent;
2633            Sprint_Node_Sloc (Specification (Node));
2634            Write_Char (';');
2635
2636            --  If this is an instantiation, get the aspects from the original
2637            --  instantiation node.
2638
2639            if Is_Generic_Instance (Defining_Entity (Node))
2640              and then Has_Aspects
2641                         (Package_Instantiation (Defining_Entity (Node)))
2642            then
2643               Sprint_Aspect_Specifications
2644                 (Package_Instantiation (Defining_Entity (Node)),
2645                   Semicolon => True);
2646            end if;
2647
2648         when N_Package_Instantiation =>
2649            Extra_Blank_Line;
2650            Write_Indent_Str_Sloc ("package ");
2651            Sprint_Node (Defining_Unit_Name (Node));
2652            Write_Str (" is new ");
2653            Sprint_Node (Name (Node));
2654            Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2655            Write_Char (';');
2656
2657         when N_Package_Renaming_Declaration =>
2658            Write_Indent_Str_Sloc ("package ");
2659            Sprint_Node (Defining_Unit_Name (Node));
2660            Write_Str_With_Col_Check (" renames ");
2661            Sprint_Node (Name (Node));
2662            Write_Char (';');
2663
2664         when N_Package_Specification =>
2665            Write_Str_With_Col_Check_Sloc ("package ");
2666            Sprint_Node (Defining_Unit_Name (Node));
2667
2668            if Nkind (Parent (Node)) = N_Generic_Package_Declaration
2669              and then Has_Aspects (Parent (Node))
2670            then
2671               Sprint_Aspect_Specifications
2672                 (Parent (Node), Semicolon => False);
2673
2674            --  An instantiation is rewritten as a package declaration, but
2675            --  the aspects belong to the instantiation node.
2676
2677            elsif Nkind (Parent (Node)) = N_Package_Declaration then
2678               declare
2679                  Pack : constant Entity_Id := Defining_Entity (Node);
2680
2681               begin
2682                  if not Is_Generic_Instance (Pack) then
2683                     if Has_Aspects (Parent (Node)) then
2684                        Sprint_Aspect_Specifications
2685                          (Parent (Node), Semicolon => False);
2686                     end if;
2687                  end if;
2688               end;
2689            end if;
2690
2691            Write_Str (" is");
2692            Sprint_Indented_List (Visible_Declarations (Node));
2693
2694            if Present (Private_Declarations (Node)) then
2695               Write_Indent_Str ("private");
2696               Sprint_Indented_List (Private_Declarations (Node));
2697            end if;
2698
2699            Write_Indent_Str ("end ");
2700            Sprint_Node (Defining_Unit_Name (Node));
2701
2702         when N_Parameter_Association =>
2703            Sprint_Node_Sloc (Selector_Name (Node));
2704            Write_Str (" => ");
2705            Sprint_Node (Explicit_Actual_Parameter (Node));
2706
2707         when N_Parameter_Specification =>
2708            Set_Debug_Sloc;
2709
2710            if Write_Identifiers (Node) then
2711               Write_Str (" : ");
2712
2713               if In_Present (Node) then
2714                  Write_Str_With_Col_Check ("in ");
2715               end if;
2716
2717               if Out_Present (Node) then
2718                  Write_Str_With_Col_Check ("out ");
2719               end if;
2720
2721               --  Ada 2005 (AI-231): Parameter specification may carry null
2722               --  exclusion. Do not print it now if this is an access formal,
2723               --  it is emitted when the access definition is displayed.
2724
2725               if Null_Exclusion_Present (Node)
2726                 and then Nkind (Parameter_Type (Node)) /= N_Access_Definition
2727               then
2728                  Write_Str ("not null ");
2729               end if;
2730
2731               if Aliased_Present (Node) then
2732                  Write_Str ("aliased ");
2733               end if;
2734
2735               Sprint_Node (Parameter_Type (Node));
2736
2737               if Present (Expression (Node)) then
2738                  Write_Str (" := ");
2739                  Sprint_Node (Expression (Node));
2740               end if;
2741            else
2742               Write_Str (", ");
2743            end if;
2744
2745         when N_Pop_Constraint_Error_Label =>
2746            Write_Indent_Str ("%pop_constraint_error_label");
2747
2748         when N_Pop_Program_Error_Label =>
2749            Write_Indent_Str ("%pop_program_error_label");
2750
2751         when N_Pop_Storage_Error_Label =>
2752            Write_Indent_Str ("%pop_storage_error_label");
2753
2754         when N_Private_Extension_Declaration =>
2755            Write_Indent_Str_Sloc ("type ");
2756            Write_Id (Defining_Identifier (Node));
2757
2758            if Present (Discriminant_Specifications (Node)) then
2759               Write_Discr_Specs (Node);
2760            elsif Unknown_Discriminants_Present (Node) then
2761               Write_Str_With_Col_Check ("(<>)");
2762            end if;
2763
2764            Write_Str_With_Col_Check (" is new ");
2765            Sprint_Node (Subtype_Indication (Node));
2766
2767            if Present (Interface_List (Node)) then
2768               Write_Str_With_Col_Check (" and ");
2769               Sprint_And_List (Interface_List (Node));
2770            end if;
2771
2772            Write_Str_With_Col_Check (" with private;");
2773
2774         when N_Private_Type_Declaration =>
2775            Write_Indent_Str_Sloc ("type ");
2776            Write_Id (Defining_Identifier (Node));
2777
2778            if Present (Discriminant_Specifications (Node)) then
2779               Write_Discr_Specs (Node);
2780            elsif Unknown_Discriminants_Present (Node) then
2781               Write_Str_With_Col_Check ("(<>)");
2782            end if;
2783
2784            Write_Str (" is ");
2785
2786            if Tagged_Present (Node) then
2787               Write_Str_With_Col_Check ("tagged ");
2788            end if;
2789
2790            if Limited_Present (Node) then
2791               Write_Str_With_Col_Check ("limited ");
2792            end if;
2793
2794            Write_Str_With_Col_Check ("private;");
2795
2796         when N_Push_Constraint_Error_Label =>
2797            Write_Indent_Str ("%push_constraint_error_label (");
2798
2799            if Present (Exception_Label (Node)) then
2800               Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2801            end if;
2802
2803            Write_Str (")");
2804
2805         when N_Push_Program_Error_Label =>
2806            Write_Indent_Str ("%push_program_error_label (");
2807
2808            if Present (Exception_Label (Node)) then
2809               Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2810            end if;
2811
2812            Write_Str (")");
2813
2814         when N_Push_Storage_Error_Label =>
2815            Write_Indent_Str ("%push_storage_error_label (");
2816
2817            if Present (Exception_Label (Node)) then
2818               Write_Name_With_Col_Check (Chars (Exception_Label (Node)));
2819            end if;
2820
2821            Write_Str (")");
2822
2823         when N_Pragma =>
2824            Write_Indent_Str_Sloc ("pragma ");
2825            Write_Name_With_Col_Check (Pragma_Name (Node));
2826
2827            if Present (Pragma_Argument_Associations (Node)) then
2828               Sprint_Opt_Paren_Comma_List
2829                 (Pragma_Argument_Associations (Node));
2830            end if;
2831
2832            Write_Char (';');
2833
2834         when N_Pragma_Argument_Association =>
2835            Set_Debug_Sloc;
2836
2837            if Chars (Node) /= No_Name then
2838               Write_Name_With_Col_Check (Chars (Node));
2839               Write_Str (" => ");
2840            end if;
2841
2842            Sprint_Node (Expression (Node));
2843
2844         when N_Procedure_Call_Statement =>
2845            Write_Indent;
2846            Set_Debug_Sloc;
2847            Write_Subprogram_Name (Name (Node));
2848            Sprint_Opt_Paren_Comma_List (Parameter_Associations (Node));
2849            Write_Char (';');
2850
2851         when N_Procedure_Instantiation =>
2852            Write_Indent_Str_Sloc ("procedure ");
2853            Sprint_Node (Defining_Unit_Name (Node));
2854            Write_Str_With_Col_Check (" is new ");
2855            Sprint_Node (Name (Node));
2856            Sprint_Opt_Paren_Comma_List (Generic_Associations (Node));
2857            Write_Char (';');
2858
2859         when N_Procedure_Specification =>
2860            Write_Str_With_Col_Check_Sloc ("procedure ");
2861            Sprint_Node (Defining_Unit_Name (Node));
2862            Write_Param_Specs (Node);
2863
2864         when N_Protected_Body =>
2865            Write_Indent_Str_Sloc ("protected body ");
2866            Write_Id (Defining_Identifier (Node));
2867            Write_Str (" is");
2868            Sprint_Indented_List (Declarations (Node));
2869            Write_Indent_Str ("end ");
2870            Write_Id (Defining_Identifier (Node));
2871            Write_Char (';');
2872
2873         when N_Protected_Body_Stub =>
2874            Write_Indent_Str_Sloc ("protected body ");
2875            Write_Id (Defining_Identifier (Node));
2876            Write_Str_With_Col_Check (" is separate;");
2877
2878         when N_Protected_Definition =>
2879            Set_Debug_Sloc;
2880            Sprint_Indented_List (Visible_Declarations (Node));
2881
2882            if Present (Private_Declarations (Node)) then
2883               Write_Indent_Str ("private");
2884               Sprint_Indented_List (Private_Declarations (Node));
2885            end if;
2886
2887            Write_Indent_Str ("end ");
2888
2889         when N_Protected_Type_Declaration =>
2890            Write_Indent_Str_Sloc ("protected type ");
2891            Sprint_Node (Defining_Identifier (Node));
2892            Write_Discr_Specs (Node);
2893
2894            if Present (Interface_List (Node)) then
2895               Write_Str (" is new ");
2896               Sprint_And_List (Interface_List (Node));
2897               Write_Str (" with ");
2898            else
2899               Write_Str (" is");
2900            end if;
2901
2902            Sprint_Node (Protected_Definition (Node));
2903            Write_Id (Defining_Identifier (Node));
2904            Write_Char (';');
2905
2906         when N_Qualified_Expression =>
2907            Sprint_Node (Subtype_Mark (Node));
2908            Write_Char_Sloc (''');
2909
2910            --  Print expression, make sure we have at least one level of
2911            --  parentheses around the expression. For cases of qualified
2912            --  expressions in the source, this is always the case, but
2913            --  for generated qualifications, there may be no explicit
2914            --  parentheses present.
2915
2916            if Paren_Count (Expression (Node)) /= 0 then
2917               Sprint_Node (Expression (Node));
2918
2919            else
2920               Write_Char ('(');
2921               Sprint_Node (Expression (Node));
2922
2923               --  Odd case, for the qualified expressions used in machine
2924               --  code the argument may be a procedure call, resulting in
2925               --  a junk semicolon before the right parent, get rid of it.
2926
2927               Write_Erase_Char (';');
2928
2929               --  Now we can add the terminating right paren
2930
2931               Write_Char (')');
2932            end if;
2933
2934         when N_Quantified_Expression =>
2935            Write_Str (" for");
2936
2937            if All_Present (Node) then
2938               Write_Str (" all ");
2939            else
2940               Write_Str (" some ");
2941            end if;
2942
2943            if Present (Iterator_Specification (Node)) then
2944               Sprint_Node (Iterator_Specification (Node));
2945            else
2946               Sprint_Node (Loop_Parameter_Specification (Node));
2947            end if;
2948
2949            Write_Str (" => ");
2950            Sprint_Node (Condition (Node));
2951
2952         when N_Raise_Expression =>
2953            declare
2954               Has_Parens : constant Boolean := Paren_Count (Node) > 0;
2955
2956            begin
2957               --  The syntax for raise_expression does not include parentheses
2958               --  but sometimes parentheses are required, so unconditionally
2959               --  generate them here unless already present.
2960
2961               if not Has_Parens then
2962                  Write_Char ('(');
2963               end if;
2964
2965               Write_Str_With_Col_Check_Sloc ("raise ");
2966               Sprint_Node (Name (Node));
2967
2968               if Present (Expression (Node)) then
2969                  Write_Str_With_Col_Check (" with ");
2970                  Sprint_Node (Expression (Node));
2971               end if;
2972
2973               if not Has_Parens then
2974                  Write_Char (')');
2975               end if;
2976            end;
2977
2978         when N_Raise_Constraint_Error =>
2979
2980            --  This node can be used either as a subexpression or as a
2981            --  statement form. The following test is a reasonably reliable
2982            --  way to distinguish the two cases.
2983
2984            if Is_List_Member (Node)
2985              and then Nkind (Parent (Node)) not in N_Subexpr
2986            then
2987               Write_Indent;
2988            end if;
2989
2990            Write_Str_With_Col_Check_Sloc ("[constraint_error");
2991            Write_Condition_And_Reason (Node);
2992
2993         when N_Raise_Program_Error =>
2994
2995            --  This node can be used either as a subexpression or as a
2996            --  statement form. The following test is a reasonably reliable
2997            --  way to distinguish the two cases.
2998
2999            if Is_List_Member (Node)
3000              and then Nkind (Parent (Node)) not in N_Subexpr
3001            then
3002               Write_Indent;
3003            end if;
3004
3005            Write_Str_With_Col_Check_Sloc ("[program_error");
3006            Write_Condition_And_Reason (Node);
3007
3008         when N_Raise_Storage_Error =>
3009
3010            --  This node can be used either as a subexpression or as a
3011            --  statement form. The following test is a reasonably reliable
3012            --  way to distinguish the two cases.
3013
3014            if Is_List_Member (Node)
3015              and then Nkind (Parent (Node)) not in N_Subexpr
3016            then
3017               Write_Indent;
3018            end if;
3019
3020            Write_Str_With_Col_Check_Sloc ("[storage_error");
3021            Write_Condition_And_Reason (Node);
3022
3023         when N_Raise_Statement =>
3024            Write_Indent_Str_Sloc ("raise ");
3025            Sprint_Node (Name (Node));
3026
3027            if Present (Expression (Node)) then
3028               Write_Str_With_Col_Check_Sloc (" with ");
3029               Sprint_Node (Expression (Node));
3030            end if;
3031
3032            Write_Char (';');
3033
3034         when N_Range =>
3035            Sprint_Node (Low_Bound (Node));
3036            Write_Str_Sloc (" .. ");
3037            Sprint_Node (High_Bound (Node));
3038            Update_Itype (Node);
3039
3040         when N_Range_Constraint =>
3041            Write_Str_With_Col_Check_Sloc ("range ");
3042            Sprint_Node (Range_Expression (Node));
3043
3044         when N_Real_Literal =>
3045            Write_Ureal_With_Col_Check_Sloc (Realval (Node));
3046
3047         when N_Real_Range_Specification =>
3048            Write_Str_With_Col_Check_Sloc ("range ");
3049            Sprint_Node (Low_Bound (Node));
3050            Write_Str (" .. ");
3051            Sprint_Node (High_Bound (Node));
3052
3053         when N_Record_Definition =>
3054            if Abstract_Present (Node) then
3055               Write_Str_With_Col_Check ("abstract ");
3056            end if;
3057
3058            if Tagged_Present (Node) then
3059               Write_Str_With_Col_Check ("tagged ");
3060            end if;
3061
3062            if Limited_Present (Node) then
3063               Write_Str_With_Col_Check ("limited ");
3064            end if;
3065
3066            if Null_Present (Node) then
3067               Write_Str_With_Col_Check_Sloc ("null record");
3068
3069            else
3070               Write_Str_With_Col_Check_Sloc ("record");
3071               Sprint_Node (Component_List (Node));
3072               Write_Indent_Str ("end record");
3073            end if;
3074
3075         when N_Record_Representation_Clause =>
3076            Write_Indent_Str_Sloc ("for ");
3077            Sprint_Node (Identifier (Node));
3078            Write_Str_With_Col_Check (" use record ");
3079
3080            if Present (Mod_Clause (Node)) then
3081               Sprint_Node (Mod_Clause (Node));
3082            end if;
3083
3084            Sprint_Indented_List (Component_Clauses (Node));
3085            Write_Indent_Str ("end record;");
3086
3087         when N_Reference =>
3088            Sprint_Node (Prefix (Node));
3089            Write_Str_With_Col_Check_Sloc ("'reference");
3090
3091         when N_Requeue_Statement =>
3092            Write_Indent_Str_Sloc ("requeue ");
3093            Sprint_Node (Name (Node));
3094
3095            if Abort_Present (Node) then
3096               Write_Str_With_Col_Check (" with abort");
3097            end if;
3098
3099            Write_Char (';');
3100
3101         --  Don't we want to print more detail???
3102
3103         --  Doc of this extended syntax belongs in sinfo.ads and/or
3104         --  sprint.ads ???
3105
3106         when N_SCIL_Dispatch_Table_Tag_Init =>
3107            Write_Indent_Str ("[N_SCIL_Dispatch_Table_Tag_Init]");
3108
3109         when N_SCIL_Dispatching_Call =>
3110            Write_Indent_Str ("[N_SCIL_Dispatching_Node]");
3111
3112         when N_SCIL_Membership_Test =>
3113            Write_Indent_Str ("[N_SCIL_Membership_Test]");
3114
3115         when N_Simple_Return_Statement =>
3116            if Present (Expression (Node)) then
3117               Write_Indent_Str_Sloc ("return ");
3118               Sprint_Node (Expression (Node));
3119               Write_Char (';');
3120            else
3121               Write_Indent_Str_Sloc ("return;");
3122            end if;
3123
3124         when N_Selective_Accept =>
3125            Write_Indent_Str_Sloc ("select");
3126
3127            declare
3128               Alt_Node : Node_Id;
3129            begin
3130               Alt_Node := First (Select_Alternatives (Node));
3131               loop
3132                  Indent_Begin;
3133                  Sprint_Node (Alt_Node);
3134                  Indent_End;
3135                  Next (Alt_Node);
3136                  exit when No (Alt_Node);
3137                  Write_Indent_Str ("or");
3138               end loop;
3139            end;
3140
3141            if Present (Else_Statements (Node)) then
3142               Write_Indent_Str ("else");
3143               Sprint_Indented_List (Else_Statements (Node));
3144            end if;
3145
3146            Write_Indent_Str ("end select;");
3147
3148         when N_Signed_Integer_Type_Definition =>
3149            Write_Str_With_Col_Check_Sloc ("range ");
3150            Sprint_Node (Low_Bound (Node));
3151            Write_Str (" .. ");
3152            Sprint_Node (High_Bound (Node));
3153
3154         when N_Single_Protected_Declaration =>
3155            Write_Indent_Str_Sloc ("protected ");
3156            Write_Id (Defining_Identifier (Node));
3157            Write_Str (" is");
3158            Sprint_Node (Protected_Definition (Node));
3159            Write_Id (Defining_Identifier (Node));
3160            Write_Char (';');
3161
3162         when N_Single_Task_Declaration =>
3163            Write_Indent_Str_Sloc ("task ");
3164            Sprint_Node (Defining_Identifier (Node));
3165
3166            if Present (Task_Definition (Node)) then
3167               Write_Str (" is");
3168               Sprint_Node (Task_Definition (Node));
3169            end if;
3170
3171            Write_Char (';');
3172
3173         when N_Selected_Component =>
3174            Sprint_Node (Prefix (Node));
3175            Write_Char_Sloc ('.');
3176            Sprint_Node (Selector_Name (Node));
3177
3178         when N_Slice =>
3179            Set_Debug_Sloc;
3180            Sprint_Node (Prefix (Node));
3181            Write_Str_With_Col_Check (" (");
3182            Sprint_Node (Discrete_Range (Node));
3183            Write_Char (')');
3184
3185         when N_String_Literal =>
3186            if String_Length (Strval (Node)) + Column > Sprint_Line_Limit then
3187               Write_Indent_Str ("  ");
3188            end if;
3189
3190            Set_Debug_Sloc;
3191            Write_String_Table_Entry (Strval (Node));
3192
3193         when N_Subprogram_Body =>
3194
3195            --  Output extra blank line unless we are in freeze actions
3196
3197            if Freeze_Indent = 0 then
3198               Extra_Blank_Line;
3199            end if;
3200
3201            Write_Indent;
3202
3203            if Present (Corresponding_Spec (Node)) then
3204               Sprint_Node_Sloc (Parent (Corresponding_Spec (Node)));
3205            else
3206               Sprint_Node_Sloc (Specification (Node));
3207            end if;
3208
3209            Write_Str (" is");
3210
3211            Sprint_Indented_List (Declarations (Node));
3212            Write_Indent_Str ("begin");
3213            Sprint_Node (Handled_Statement_Sequence (Node));
3214
3215            Write_Indent_Str ("end ");
3216
3217            Sprint_End_Label
3218              (Handled_Statement_Sequence (Node),
3219                 Defining_Unit_Name (Specification (Node)));
3220            Write_Char (';');
3221
3222            if Is_List_Member (Node)
3223              and then Present (Next (Node))
3224              and then Nkind (Next (Node)) /= N_Subprogram_Body
3225            then
3226               Write_Indent;
3227            end if;
3228
3229         when N_Subprogram_Body_Stub =>
3230            Write_Indent;
3231            Sprint_Node_Sloc (Specification (Node));
3232            Write_Str_With_Col_Check (" is separate;");
3233
3234         when N_Subprogram_Declaration =>
3235            Write_Indent;
3236            Sprint_Node_Sloc (Specification (Node));
3237
3238            if Nkind (Specification (Node)) = N_Procedure_Specification
3239              and then Null_Present (Specification (Node))
3240            then
3241               Write_Str_With_Col_Check (" is null");
3242            end if;
3243
3244            Write_Char (';');
3245
3246         when N_Subprogram_Renaming_Declaration =>
3247            Write_Indent;
3248            Sprint_Node (Specification (Node));
3249            Write_Str_With_Col_Check_Sloc (" renames ");
3250            Sprint_Node (Name (Node));
3251            Write_Char (';');
3252
3253         when N_Subtype_Declaration =>
3254            Write_Indent_Str_Sloc ("subtype ");
3255            Sprint_Node (Defining_Identifier (Node));
3256            Write_Str (" is ");
3257
3258            --  Ada 2005 (AI-231)
3259
3260            if Null_Exclusion_Present (Node) then
3261               Write_Str ("not null ");
3262            end if;
3263
3264            Sprint_Node (Subtype_Indication (Node));
3265            Write_Char (';');
3266
3267         when N_Subtype_Indication =>
3268            Sprint_Node_Sloc (Subtype_Mark (Node));
3269            Write_Char (' ');
3270            Sprint_Node (Constraint (Node));
3271
3272         when N_Subunit =>
3273            Write_Indent_Str_Sloc ("separate (");
3274            Sprint_Node (Name (Node));
3275            Write_Char (')');
3276            Extra_Blank_Line;
3277            Sprint_Node (Proper_Body (Node));
3278
3279         when N_Task_Body =>
3280            Write_Indent_Str_Sloc ("task body ");
3281            Write_Id (Defining_Identifier (Node));
3282            Write_Str (" is");
3283            Sprint_Indented_List (Declarations (Node));
3284            Write_Indent_Str ("begin");
3285            Sprint_Node (Handled_Statement_Sequence (Node));
3286            Write_Indent_Str ("end ");
3287            Sprint_End_Label
3288              (Handled_Statement_Sequence (Node), Defining_Identifier (Node));
3289            Write_Char (';');
3290
3291         when N_Task_Body_Stub =>
3292            Write_Indent_Str_Sloc ("task body ");
3293            Write_Id (Defining_Identifier (Node));
3294            Write_Str_With_Col_Check (" is separate;");
3295
3296         when N_Task_Definition =>
3297            Set_Debug_Sloc;
3298            Sprint_Indented_List (Visible_Declarations (Node));
3299
3300            if Present (Private_Declarations (Node)) then
3301               Write_Indent_Str ("private");
3302               Sprint_Indented_List (Private_Declarations (Node));
3303            end if;
3304
3305            Write_Indent_Str ("end ");
3306            Sprint_End_Label (Node, Defining_Identifier (Parent (Node)));
3307
3308         when N_Task_Type_Declaration =>
3309            Write_Indent_Str_Sloc ("task type ");
3310            Sprint_Node (Defining_Identifier (Node));
3311            Write_Discr_Specs (Node);
3312
3313            if Present (Interface_List (Node)) then
3314               Write_Str (" is new ");
3315               Sprint_And_List (Interface_List (Node));
3316            end if;
3317
3318            if Present (Task_Definition (Node)) then
3319               if No (Interface_List (Node)) then
3320                  Write_Str (" is");
3321               else
3322                  Write_Str (" with ");
3323               end if;
3324
3325               Sprint_Node (Task_Definition (Node));
3326            end if;
3327
3328            Write_Char (';');
3329
3330         when N_Terminate_Alternative =>
3331            Sprint_Node_List (Pragmas_Before (Node));
3332            Write_Indent;
3333
3334            if Present (Condition (Node)) then
3335               Write_Str_With_Col_Check ("when ");
3336               Sprint_Node (Condition (Node));
3337               Write_Str (" => ");
3338            end if;
3339
3340            Write_Str_With_Col_Check_Sloc ("terminate;");
3341            Sprint_Node_List (Pragmas_After (Node));
3342
3343         when N_Timed_Entry_Call =>
3344            Write_Indent_Str_Sloc ("select");
3345            Indent_Begin;
3346            Sprint_Node (Entry_Call_Alternative (Node));
3347            Indent_End;
3348            Write_Indent_Str ("or");
3349            Indent_Begin;
3350            Sprint_Node (Delay_Alternative (Node));
3351            Indent_End;
3352            Write_Indent_Str ("end select;");
3353
3354         when N_Triggering_Alternative =>
3355            Sprint_Node_List (Pragmas_Before (Node));
3356            Sprint_Node_Sloc (Triggering_Statement (Node));
3357            Sprint_Node_List (Statements (Node));
3358
3359         when N_Type_Conversion =>
3360            Set_Debug_Sloc;
3361            Sprint_Node (Subtype_Mark (Node));
3362            Col_Check (4);
3363
3364            if Conversion_OK (Node) then
3365               Write_Char ('?');
3366            end if;
3367
3368            if Float_Truncate (Node) then
3369               Write_Char ('^');
3370            end if;
3371
3372            if Rounded_Result (Node) then
3373               Write_Char ('@');
3374            end if;
3375
3376            Write_Char ('(');
3377            Sprint_Node (Expression (Node));
3378            Write_Char (')');
3379
3380         when N_Unchecked_Expression =>
3381            Col_Check (10);
3382            Write_Str ("`(");
3383            Sprint_Node_Sloc (Expression (Node));
3384            Write_Char (')');
3385
3386         when N_Unchecked_Type_Conversion =>
3387            Sprint_Node (Subtype_Mark (Node));
3388            Write_Char ('!');
3389            Write_Str_With_Col_Check ("(");
3390            Sprint_Node_Sloc (Expression (Node));
3391            Write_Char (')');
3392
3393         when N_Unconstrained_Array_Definition =>
3394            Write_Str_With_Col_Check_Sloc ("array (");
3395
3396            declare
3397               Node1 : Node_Id;
3398            begin
3399               Node1 := First (Subtype_Marks (Node));
3400               loop
3401                  Sprint_Node (Node1);
3402                  Write_Str_With_Col_Check (" range <>");
3403                  Next (Node1);
3404                  exit when Node1 = Empty;
3405                  Write_Str (", ");
3406               end loop;
3407            end;
3408
3409            Write_Str (") of ");
3410            Sprint_Node (Component_Definition (Node));
3411
3412         when N_Unused_At_Start | N_Unused_At_End =>
3413            Write_Indent_Str ("***** Error, unused node encountered *****");
3414            Write_Eol;
3415
3416         when N_Use_Package_Clause =>
3417            Write_Indent_Str_Sloc ("use ");
3418            Sprint_Comma_List (Names (Node));
3419            Write_Char (';');
3420
3421         when N_Use_Type_Clause =>
3422            Write_Indent_Str_Sloc ("use type ");
3423            Sprint_Comma_List (Subtype_Marks (Node));
3424            Write_Char (';');
3425
3426         when N_Validate_Unchecked_Conversion =>
3427            Write_Indent_Str_Sloc ("validate unchecked_conversion (");
3428            Sprint_Node (Source_Type (Node));
3429            Write_Str (", ");
3430            Sprint_Node (Target_Type (Node));
3431            Write_Str (");");
3432
3433         when N_Variant =>
3434            Write_Indent_Str_Sloc ("when ");
3435            Sprint_Bar_List (Discrete_Choices (Node));
3436            Write_Str (" => ");
3437            Sprint_Node (Component_List (Node));
3438
3439         when N_Variant_Part =>
3440            Indent_Begin;
3441            Write_Indent_Str_Sloc ("case ");
3442            Sprint_Node (Name (Node));
3443            Write_Str (" is ");
3444            Sprint_Indented_List (Variants (Node));
3445            Write_Indent_Str ("end case");
3446            Indent_End;
3447
3448         when N_With_Clause =>
3449
3450            --  Special test, if we are dumping the original tree only,
3451            --  then we want to eliminate the bogus with clauses that
3452            --  correspond to the non-existent children of Text_IO.
3453
3454            if Dump_Original_Only
3455              and then Is_Text_IO_Special_Unit (Name (Node))
3456            then
3457               null;
3458
3459            --  Normal case, output the with clause
3460
3461            else
3462               if First_Name (Node) or else not Dump_Original_Only then
3463
3464                  --  Ada 2005 (AI-50217): Print limited with_clauses
3465
3466                  if Private_Present (Node) and Limited_Present (Node) then
3467                     Write_Indent_Str ("limited private with ");
3468
3469                  elsif Private_Present (Node) then
3470                     Write_Indent_Str ("private with ");
3471
3472                  elsif Limited_Present (Node) then
3473                     Write_Indent_Str ("limited with ");
3474
3475                  else
3476                     Write_Indent_Str ("with ");
3477                  end if;
3478
3479               else
3480                  Write_Str (", ");
3481               end if;
3482
3483               Sprint_Node_Sloc (Name (Node));
3484
3485               if Last_Name (Node) or else not Dump_Original_Only then
3486                  Write_Char (';');
3487               end if;
3488            end if;
3489      end case;
3490
3491      --  Print aspects, except for special case of package declaration,
3492      --  where the aspects are printed inside the package specification.
3493
3494      if Has_Aspects (Node)
3495         and then not Nkind_In (Node, N_Package_Declaration,
3496                                      N_Generic_Package_Declaration)
3497      then
3498         Sprint_Aspect_Specifications (Node, Semicolon => True);
3499      end if;
3500
3501      if Nkind (Node) in N_Subexpr
3502        and then Do_Range_Check (Node)
3503      then
3504         Write_Str ("}");
3505      end if;
3506
3507      for J in 1 .. Paren_Count (Node) loop
3508         Write_Char (')');
3509      end loop;
3510
3511      Dump_Node := Save_Dump_Node;
3512   end Sprint_Node_Actual;
3513
3514   ----------------------
3515   -- Sprint_Node_List --
3516   ----------------------
3517
3518   procedure Sprint_Node_List (List : List_Id; New_Lines : Boolean := False) is
3519      Node : Node_Id;
3520
3521   begin
3522      if Is_Non_Empty_List (List) then
3523         Node := First (List);
3524
3525         loop
3526            Sprint_Node (Node);
3527            Next (Node);
3528            exit when Node = Empty;
3529         end loop;
3530      end if;
3531
3532      if New_Lines and then Column /= 1 then
3533         Write_Eol;
3534      end if;
3535   end Sprint_Node_List;
3536
3537   ----------------------
3538   -- Sprint_Node_Sloc --
3539   ----------------------
3540
3541   procedure Sprint_Node_Sloc (Node : Node_Id) is
3542   begin
3543      Sprint_Node (Node);
3544
3545      if Debug_Generated_Code and then Present (Dump_Node) then
3546         Set_Sloc (Dump_Node, Sloc (Node));
3547         Dump_Node := Empty;
3548      end if;
3549   end Sprint_Node_Sloc;
3550
3551   ---------------------
3552   -- Sprint_Opt_Node --
3553   ---------------------
3554
3555   procedure Sprint_Opt_Node (Node : Node_Id) is
3556   begin
3557      if Present (Node) then
3558         Write_Char (' ');
3559         Sprint_Node (Node);
3560      end if;
3561   end Sprint_Opt_Node;
3562
3563   --------------------------
3564   -- Sprint_Opt_Node_List --
3565   --------------------------
3566
3567   procedure Sprint_Opt_Node_List (List : List_Id) is
3568   begin
3569      if Present (List) then
3570         Sprint_Node_List (List);
3571      end if;
3572   end Sprint_Opt_Node_List;
3573
3574   ---------------------------------
3575   -- Sprint_Opt_Paren_Comma_List --
3576   ---------------------------------
3577
3578   procedure Sprint_Opt_Paren_Comma_List (List : List_Id) is
3579   begin
3580      if Is_Non_Empty_List (List) then
3581         Write_Char (' ');
3582         Sprint_Paren_Comma_List (List);
3583      end if;
3584   end Sprint_Opt_Paren_Comma_List;
3585
3586   -----------------------------
3587   -- Sprint_Paren_Comma_List --
3588   -----------------------------
3589
3590   procedure Sprint_Paren_Comma_List (List : List_Id) is
3591      N           : Node_Id;
3592      Node_Exists : Boolean := False;
3593
3594   begin
3595
3596      if Is_Non_Empty_List (List) then
3597
3598         if Dump_Original_Only then
3599            N := First (List);
3600            while Present (N) loop
3601               if not Is_Rewrite_Insertion (N) then
3602                  Node_Exists := True;
3603                  exit;
3604               end if;
3605
3606               Next (N);
3607            end loop;
3608
3609            if not Node_Exists then
3610               return;
3611            end if;
3612         end if;
3613
3614         Write_Str_With_Col_Check ("(");
3615         Sprint_Comma_List (List);
3616         Write_Char (')');
3617      end if;
3618   end Sprint_Paren_Comma_List;
3619
3620   ----------------------
3621   -- Sprint_Right_Opnd --
3622   ----------------------
3623
3624   procedure Sprint_Right_Opnd (N : Node_Id) is
3625      Opnd : constant Node_Id := Right_Opnd (N);
3626
3627   begin
3628      if Paren_Count (Opnd) /= 0
3629        or else Op_Prec (Nkind (Opnd)) > Op_Prec (Nkind (N))
3630      then
3631         Sprint_Node (Opnd);
3632
3633      else
3634         Write_Char ('(');
3635         Sprint_Node (Opnd);
3636         Write_Char (')');
3637      end if;
3638   end Sprint_Right_Opnd;
3639
3640   ------------------
3641   -- Update_Itype --
3642   ------------------
3643
3644   procedure Update_Itype (Node : Node_Id) is
3645   begin
3646      if Present (Etype (Node))
3647        and then Is_Itype (Etype (Node))
3648        and then Debug_Generated_Code
3649      then
3650         Set_Sloc (Etype (Node), Sloc (Node));
3651      end if;
3652   end Update_Itype;
3653
3654   ---------------------
3655   -- Write_Char_Sloc --
3656   ---------------------
3657
3658   procedure Write_Char_Sloc (C : Character) is
3659   begin
3660      if Debug_Generated_Code and then C /= ' ' then
3661         Set_Debug_Sloc;
3662      end if;
3663
3664      Write_Char (C);
3665   end Write_Char_Sloc;
3666
3667   --------------------------------
3668   -- Write_Condition_And_Reason --
3669   --------------------------------
3670
3671   procedure Write_Condition_And_Reason (Node : Node_Id) is
3672      Cond  : constant Node_Id := Condition (Node);
3673      Image : constant String  := RT_Exception_Code'Image
3674                                    (RT_Exception_Code'Val
3675                                       (UI_To_Int (Reason (Node))));
3676
3677   begin
3678      if Present (Cond) then
3679
3680         --  If condition is a single entity, or NOT with a single entity,
3681         --  output all on one line, since it will likely fit just fine.
3682
3683         if Is_Entity_Name (Cond)
3684           or else (Nkind (Cond) = N_Op_Not
3685                     and then Is_Entity_Name (Right_Opnd (Cond)))
3686         then
3687            Write_Str_With_Col_Check (" when ");
3688            Sprint_Node (Cond);
3689            Write_Char (' ');
3690
3691            --  Otherwise for more complex condition, multiple lines
3692
3693         else
3694            Write_Str_With_Col_Check (" when");
3695            Indent := Indent + 2;
3696            Write_Indent;
3697            Sprint_Node (Cond);
3698            Write_Indent;
3699            Indent := Indent - 2;
3700         end if;
3701
3702      --  If no condition, just need a space (all on one line)
3703
3704      else
3705         Write_Char (' ');
3706      end if;
3707
3708      --  Write the reason
3709
3710      Write_Char ('"');
3711
3712      for J in 4 .. Image'Last loop
3713         if Image (J) = '_' then
3714            Write_Char (' ');
3715         else
3716            Write_Char (Fold_Lower (Image (J)));
3717         end if;
3718      end loop;
3719
3720      Write_Str ("""]");
3721   end Write_Condition_And_Reason;
3722
3723   --------------------------------
3724   -- Write_Corresponding_Source --
3725   --------------------------------
3726
3727   procedure Write_Corresponding_Source (S : String) is
3728      Loc : Source_Ptr;
3729      Src : Source_Buffer_Ptr;
3730
3731   begin
3732      --  Ignore if not in dump source text mode, or if in freeze actions
3733
3734      if Dump_Source_Text and then Freeze_Indent = 0 then
3735
3736         --  Ignore null string
3737
3738         if S = "" then
3739            return;
3740         end if;
3741
3742         --  Ignore space or semicolon at end of given string
3743
3744         if S (S'Last) = ' ' or else S (S'Last) = ';' then
3745            Write_Corresponding_Source (S (S'First .. S'Last - 1));
3746            return;
3747         end if;
3748
3749         --  Loop to look at next lines not yet printed in source file
3750
3751         for L in
3752           Last_Line_Printed + 1 .. Last_Source_Line (Current_Source_File)
3753         loop
3754            Src := Source_Text (Current_Source_File);
3755            Loc := Line_Start (L, Current_Source_File);
3756
3757            --  If comment, keep looking
3758
3759            if Src (Loc .. Loc + 1) = "--" then
3760               null;
3761
3762            --  Search to first non-blank
3763
3764            else
3765               while Src (Loc) not in Line_Terminator loop
3766
3767                  --  Non-blank found
3768
3769                  if Src (Loc) /= ' ' and then Src (Loc) /= ASCII.HT then
3770
3771                     --  Loop through characters in string to see if we match
3772
3773                     for J in S'Range loop
3774
3775                        --  If mismatch, then not the case we are looking for
3776
3777                        if Src (Loc) /= S (J) then
3778                           return;
3779                        end if;
3780
3781                        Loc := Loc + 1;
3782                     end loop;
3783
3784                     --  If we fall through, string matched, if white space or
3785                     --  semicolon after the matched string, this is the case
3786                     --  we are looking for.
3787
3788                     if Src (Loc) in Line_Terminator
3789                       or else Src (Loc) = ' '
3790                       or else Src (Loc) = ASCII.HT
3791                       or else Src (Loc) = ';'
3792                     then
3793                        --  So output source lines up to and including this one
3794
3795                        Write_Source_Lines (L);
3796                        return;
3797                     end if;
3798                  end if;
3799
3800                  Loc := Loc + 1;
3801               end loop;
3802            end if;
3803
3804         --  Line was all blanks, or a comment line, keep looking
3805
3806         end loop;
3807      end if;
3808   end Write_Corresponding_Source;
3809
3810   -----------------------
3811   -- Write_Discr_Specs --
3812   -----------------------
3813
3814   procedure Write_Discr_Specs (N : Node_Id) is
3815      Specs : List_Id;
3816      Spec  : Node_Id;
3817
3818   begin
3819      Specs := Discriminant_Specifications (N);
3820
3821      if Present (Specs) then
3822         Write_Str_With_Col_Check (" (");
3823         Spec := First (Specs);
3824
3825         loop
3826            Sprint_Node (Spec);
3827            Next (Spec);
3828            exit when Spec = Empty;
3829
3830            --  Add semicolon, unless we are printing original tree and the
3831            --  next specification is part of a list (but not the first
3832            --  element of that list)
3833
3834            if not Dump_Original_Only or else not Prev_Ids (Spec) then
3835               Write_Str ("; ");
3836            end if;
3837         end loop;
3838
3839         Write_Char (')');
3840      end if;
3841   end Write_Discr_Specs;
3842
3843   -----------------
3844   -- Write_Ekind --
3845   -----------------
3846
3847   procedure Write_Ekind (E : Entity_Id) is
3848      S : constant String := Entity_Kind'Image (Ekind (E));
3849
3850   begin
3851      Name_Len := S'Length;
3852      Name_Buffer (1 .. Name_Len) := S;
3853      Set_Casing (Mixed_Case);
3854      Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3855   end Write_Ekind;
3856
3857   --------------
3858   -- Write_Id --
3859   --------------
3860
3861   procedure Write_Id (N : Node_Id) is
3862   begin
3863      --  Deal with outputting Itype
3864
3865      --  Note: if we are printing the full tree with -gnatds, then we may
3866      --  end up picking up the Associated_Node link from a generic template
3867      --  here which overlaps the Entity field, but as documented, Write_Itype
3868      --  is defended against junk calls.
3869
3870      if Nkind (N) in N_Entity then
3871         Write_Itype (N);
3872      elsif Nkind (N) in N_Has_Entity then
3873         Write_Itype (Entity (N));
3874      end if;
3875
3876      --  Case of a defining identifier
3877
3878      if Nkind (N) = N_Defining_Identifier then
3879
3880         --  If defining identifier has an interface name (and no
3881         --  address clause), then we output the interface name.
3882
3883         if (Is_Imported (N) or else Is_Exported (N))
3884           and then Present (Interface_Name (N))
3885           and then No (Address_Clause (N))
3886         then
3887            String_To_Name_Buffer (Strval (Interface_Name (N)));
3888            Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
3889
3890         --  If no interface name (or inactive because there was
3891         --  an address clause), then just output the Chars name.
3892
3893         else
3894            Write_Name_With_Col_Check (Chars (N));
3895         end if;
3896
3897      --  Case of selector of an expanded name where the expanded name
3898      --  has an associated entity, output this entity. Check that the
3899      --  entity or associated node is of the right kind, see above.
3900
3901      elsif Nkind (Parent (N)) = N_Expanded_Name
3902        and then Selector_Name (Parent (N)) = N
3903        and then Present (Entity_Or_Associated_Node (Parent (N)))
3904        and then Nkind (Entity (Parent (N))) in N_Entity
3905      then
3906         Write_Id (Entity (Parent (N)));
3907
3908      --  For any other node with an associated entity, output it
3909
3910      elsif Nkind (N) in N_Has_Entity
3911        and then Present (Entity_Or_Associated_Node (N))
3912        and then Nkind (Entity_Or_Associated_Node (N)) in N_Entity
3913      then
3914         Write_Id (Entity (N));
3915
3916      --  All other cases, we just print the Chars field
3917
3918      else
3919         Write_Name_With_Col_Check (Chars (N));
3920      end if;
3921   end Write_Id;
3922
3923   -----------------------
3924   -- Write_Identifiers --
3925   -----------------------
3926
3927   function Write_Identifiers (Node : Node_Id) return Boolean is
3928   begin
3929      Sprint_Node (Defining_Identifier (Node));
3930      Update_Itype (Defining_Identifier (Node));
3931
3932      --  The remainder of the declaration must be printed unless we are
3933      --  printing the original tree and this is not the last identifier
3934
3935      return
3936         not Dump_Original_Only or else not More_Ids (Node);
3937
3938   end Write_Identifiers;
3939
3940   ------------------------
3941   -- Write_Implicit_Def --
3942   ------------------------
3943
3944   procedure Write_Implicit_Def (E : Entity_Id) is
3945      Ind : Node_Id;
3946
3947   begin
3948      case Ekind (E) is
3949         when E_Array_Subtype =>
3950            Write_Str_With_Col_Check ("subtype ");
3951            Write_Id (E);
3952            Write_Str_With_Col_Check (" is ");
3953            Write_Id (Base_Type (E));
3954            Write_Str_With_Col_Check (" (");
3955
3956            Ind := First_Index (E);
3957            while Present (Ind) loop
3958               Sprint_Node (Ind);
3959               Next_Index (Ind);
3960
3961               if Present (Ind) then
3962                  Write_Str (", ");
3963               end if;
3964            end loop;
3965
3966            Write_Str (");");
3967
3968         when E_Signed_Integer_Subtype | E_Enumeration_Subtype =>
3969            Write_Str_With_Col_Check ("subtype ");
3970            Write_Id (E);
3971            Write_Str (" is ");
3972            Write_Id (Etype (E));
3973            Write_Str_With_Col_Check (" range ");
3974            Sprint_Node (Scalar_Range (E));
3975            Write_Str (";");
3976
3977         when others =>
3978            Write_Str_With_Col_Check ("type ");
3979            Write_Id (E);
3980            Write_Str_With_Col_Check (" is <");
3981            Write_Ekind (E);
3982            Write_Str (">;");
3983      end case;
3984
3985   end Write_Implicit_Def;
3986
3987   ------------------
3988   -- Write_Indent --
3989   ------------------
3990
3991   procedure Write_Indent is
3992      Loc : constant Source_Ptr := Sloc (Dump_Node);
3993
3994   begin
3995      if Indent_Annull_Flag then
3996         Indent_Annull_Flag := False;
3997      else
3998         --  Deal with Dump_Source_Text output. Note that we ignore implicit
3999         --  label declarations, since they typically have the sloc of the
4000         --  corresponding label, which really messes up the -gnatL output.
4001
4002         if Dump_Source_Text
4003           and then Loc > No_Location
4004           and then Nkind (Dump_Node) /= N_Implicit_Label_Declaration
4005         then
4006            if Get_Source_File_Index (Loc) = Current_Source_File then
4007               Write_Source_Lines
4008                 (Get_Physical_Line_Number (Sloc (Dump_Node)));
4009            end if;
4010         end if;
4011
4012         Write_Eol;
4013
4014         for J in 1 .. Indent loop
4015            Write_Char (' ');
4016         end loop;
4017      end if;
4018   end Write_Indent;
4019
4020   ------------------------------
4021   -- Write_Indent_Identifiers --
4022   ------------------------------
4023
4024   function Write_Indent_Identifiers (Node : Node_Id) return Boolean is
4025   begin
4026      --  We need to start a new line for every node, except in the case
4027      --  where we are printing the original tree and this is not the first
4028      --  defining identifier in the list.
4029
4030      if not Dump_Original_Only or else not Prev_Ids (Node) then
4031         Write_Indent;
4032
4033      --  If printing original tree and this is not the first defining
4034      --  identifier in the list, then the previous call to this procedure
4035      --  printed only the name, and we add a comma to separate the names.
4036
4037      else
4038         Write_Str (", ");
4039      end if;
4040
4041      Sprint_Node (Defining_Identifier (Node));
4042
4043      --  The remainder of the declaration must be printed unless we are
4044      --  printing the original tree and this is not the last identifier
4045
4046      return
4047         not Dump_Original_Only or else not More_Ids (Node);
4048   end Write_Indent_Identifiers;
4049
4050   -----------------------------------
4051   -- Write_Indent_Identifiers_Sloc --
4052   -----------------------------------
4053
4054   function Write_Indent_Identifiers_Sloc (Node : Node_Id) return Boolean is
4055   begin
4056      --  We need to start a new line for every node, except in the case
4057      --  where we are printing the original tree and this is not the first
4058      --  defining identifier in the list.
4059
4060      if not Dump_Original_Only or else not Prev_Ids (Node) then
4061         Write_Indent;
4062
4063      --  If printing original tree and this is not the first defining
4064      --  identifier in the list, then the previous call to this procedure
4065      --  printed only the name, and we add a comma to separate the names.
4066
4067      else
4068         Write_Str (", ");
4069      end if;
4070
4071      Set_Debug_Sloc;
4072      Sprint_Node (Defining_Identifier (Node));
4073
4074      --  The remainder of the declaration must be printed unless we are
4075      --  printing the original tree and this is not the last identifier
4076
4077      return not Dump_Original_Only or else not More_Ids (Node);
4078   end Write_Indent_Identifiers_Sloc;
4079
4080   ----------------------
4081   -- Write_Indent_Str --
4082   ----------------------
4083
4084   procedure Write_Indent_Str (S : String) is
4085   begin
4086      Write_Corresponding_Source (S);
4087      Write_Indent;
4088      Write_Str (S);
4089   end Write_Indent_Str;
4090
4091   ---------------------------
4092   -- Write_Indent_Str_Sloc --
4093   ---------------------------
4094
4095   procedure Write_Indent_Str_Sloc (S : String) is
4096   begin
4097      Write_Corresponding_Source (S);
4098      Write_Indent;
4099      Write_Str_Sloc (S);
4100   end Write_Indent_Str_Sloc;
4101
4102   -----------------
4103   -- Write_Itype --
4104   -----------------
4105
4106   procedure Write_Itype (Typ : Entity_Id) is
4107
4108      procedure Write_Header (T : Boolean := True);
4109      --  Write type if T is True, subtype if T is false
4110
4111      ------------------
4112      -- Write_Header --
4113      ------------------
4114
4115      procedure Write_Header (T : Boolean := True) is
4116      begin
4117         if T then
4118            Write_Str ("[type ");
4119         else
4120            Write_Str ("[subtype ");
4121         end if;
4122
4123         Write_Name_With_Col_Check (Chars (Typ));
4124         Write_Str (" is ");
4125      end Write_Header;
4126
4127   --  Start of processing for Write_Itype
4128
4129   begin
4130      if Nkind (Typ) in N_Entity
4131        and then Is_Itype (Typ)
4132        and then not Itype_Printed (Typ)
4133      then
4134         --  Itype to be printed
4135
4136         declare
4137            B : constant Node_Id := Etype (Typ);
4138            X : Node_Id;
4139            P : constant Node_Id := Parent (Typ);
4140
4141            S : constant Saved_Output_Buffer := Save_Output_Buffer;
4142            --  Save current output buffer
4143
4144            Old_Sloc : Source_Ptr;
4145            --  Save sloc of related node, so it is not modified when
4146            --  printing with -gnatD.
4147
4148         begin
4149            --  Write indentation at start of line
4150
4151            for J in 1 .. Indent loop
4152               Write_Char (' ');
4153            end loop;
4154
4155            --  If we have a constructed declaration for the itype, print it
4156
4157            if Present (P)
4158              and then Nkind (P) in N_Declaration
4159              and then Defining_Entity (P) = Typ
4160            then
4161               --  We must set Itype_Printed true before the recursive call to
4162               --  print the node, otherwise we get an infinite recursion.
4163
4164               Set_Itype_Printed (Typ, True);
4165
4166               --  Write the declaration enclosed in [], avoiding new line
4167               --  at start of declaration, and semicolon at end.
4168
4169               --  Note: The itype may be imported from another unit, in which
4170               --  case we do not want to modify the Sloc of the declaration.
4171               --  Otherwise the itype may appear to be in the current unit,
4172               --  and the back-end will reject a reference out of scope.
4173
4174               Write_Char ('[');
4175               Indent_Annull_Flag := True;
4176               Old_Sloc := Sloc (P);
4177               Sprint_Node (P);
4178               Set_Sloc (P, Old_Sloc);
4179               Write_Erase_Char (';');
4180
4181            --  If no constructed declaration, then we have to concoct the
4182            --  source corresponding to the type entity that we have at hand.
4183
4184            else
4185               case Ekind (Typ) is
4186
4187                  --  Access types and subtypes
4188
4189                  when Access_Kind =>
4190                     Write_Header (Ekind (Typ) = E_Access_Type);
4191
4192                     if Can_Never_Be_Null (Typ) then
4193                        Write_Str ("not null ");
4194                     end if;
4195
4196                     Write_Str ("access ");
4197
4198                     if Is_Access_Constant (Typ) then
4199                        Write_Str ("constant ");
4200                     end if;
4201
4202                     Write_Id (Directly_Designated_Type (Typ));
4203
4204                  --  Array types
4205
4206                  when E_Array_Type =>
4207                     Write_Header;
4208                     Write_Str ("array (");
4209
4210                     X := First_Index (Typ);
4211                     loop
4212                        Sprint_Node (X);
4213
4214                        if not Is_Constrained (Typ) then
4215                           Write_Str (" range <>");
4216                        end if;
4217
4218                        Next_Index (X);
4219                        exit when No (X);
4220                        Write_Str (", ");
4221                     end loop;
4222
4223                     Write_Str (") of ");
4224                     X := Component_Type (Typ);
4225
4226                     --  Preserve sloc of component type, which is defined
4227                     --  elsewhere than the itype (see comment above).
4228
4229                     Old_Sloc := Sloc (X);
4230                     Sprint_Node (X);
4231                     Set_Sloc (X, Old_Sloc);
4232
4233                     --  Array subtypes
4234
4235                     --  Preserve Sloc of index subtypes, as above
4236
4237                  when E_Array_Subtype =>
4238                     Write_Header (False);
4239                     Write_Id (Etype (Typ));
4240                     Write_Str (" (");
4241
4242                     X := First_Index (Typ);
4243                     loop
4244                        Old_Sloc := Sloc (X);
4245                        Sprint_Node (X);
4246                        Set_Sloc (X, Old_Sloc);
4247                        Next_Index (X);
4248                        exit when No (X);
4249                        Write_Str (", ");
4250                     end loop;
4251
4252                     Write_Char (')');
4253
4254                  --  Signed integer types, and modular integer subtypes,
4255                  --  and also enumeration subtypes.
4256
4257                  when E_Signed_Integer_Type     |
4258                       E_Signed_Integer_Subtype  |
4259                       E_Modular_Integer_Subtype |
4260                       E_Enumeration_Subtype     =>
4261
4262                     Write_Header (Ekind (Typ) = E_Signed_Integer_Type);
4263
4264                     if Ekind (Typ) = E_Signed_Integer_Type then
4265                        Write_Str ("new ");
4266                     end if;
4267
4268                     Write_Id (B);
4269
4270                     --  Print bounds if different from base type
4271
4272                     declare
4273                        L  : constant Node_Id := Type_Low_Bound (Typ);
4274                        H  : constant Node_Id := Type_High_Bound (Typ);
4275                        LE : Node_Id;
4276                        HE : Node_Id;
4277
4278                     begin
4279                        --  B can either be a scalar type, in which case the
4280                        --  declaration of Typ may constrain it with different
4281                        --  bounds, or a private type, in which case we know
4282                        --  that the declaration of Typ cannot have a scalar
4283                        --  constraint.
4284
4285                        if Is_Scalar_Type (B) then
4286                           LE := Type_Low_Bound (B);
4287                           HE := Type_High_Bound (B);
4288                        else
4289                           LE := Empty;
4290                           HE := Empty;
4291                        end if;
4292
4293                        if No (LE)
4294                          or else (True
4295                            and then Nkind (L) = N_Integer_Literal
4296                            and then Nkind (H) = N_Integer_Literal
4297                            and then Nkind (LE) = N_Integer_Literal
4298                            and then Nkind (HE) = N_Integer_Literal
4299                            and then UI_Eq (Intval (L), Intval (LE))
4300                            and then UI_Eq (Intval (H), Intval (HE)))
4301                        then
4302                           null;
4303
4304                        else
4305                           Write_Str (" range ");
4306                           Sprint_Node (Type_Low_Bound (Typ));
4307                           Write_Str (" .. ");
4308                           Sprint_Node (Type_High_Bound (Typ));
4309                        end if;
4310                     end;
4311
4312                  --  Modular integer types
4313
4314                  when E_Modular_Integer_Type =>
4315                     Write_Header;
4316                     Write_Str ("mod ");
4317                     Write_Uint_With_Col_Check (Modulus (Typ), Auto);
4318
4319                  --  Floating point types and subtypes
4320
4321                  when E_Floating_Point_Type    |
4322                       E_Floating_Point_Subtype =>
4323
4324                     Write_Header (Ekind (Typ) = E_Floating_Point_Type);
4325
4326                     if Ekind (Typ) = E_Floating_Point_Type then
4327                        Write_Str ("new ");
4328                     end if;
4329
4330                     Write_Id (Etype (Typ));
4331
4332                     if Digits_Value (Typ) /= Digits_Value (Etype (Typ)) then
4333                        Write_Str (" digits ");
4334                        Write_Uint_With_Col_Check
4335                          (Digits_Value (Typ), Decimal);
4336                     end if;
4337
4338                     --  Print bounds if not different from base type
4339
4340                     declare
4341                        L  : constant Node_Id := Type_Low_Bound (Typ);
4342                        H  : constant Node_Id := Type_High_Bound (Typ);
4343                        LE : constant Node_Id := Type_Low_Bound (B);
4344                        HE : constant Node_Id := Type_High_Bound (B);
4345
4346                     begin
4347                        if Nkind (L) = N_Real_Literal
4348                          and then Nkind (H) = N_Real_Literal
4349                          and then Nkind (LE) = N_Real_Literal
4350                          and then Nkind (HE) = N_Real_Literal
4351                          and then UR_Eq (Realval (L), Realval (LE))
4352                          and then UR_Eq (Realval (H), Realval (HE))
4353                        then
4354                           null;
4355
4356                        else
4357                           Write_Str (" range ");
4358                           Sprint_Node (Type_Low_Bound (Typ));
4359                           Write_Str (" .. ");
4360                           Sprint_Node (Type_High_Bound (Typ));
4361                        end if;
4362                     end;
4363
4364                  --  Record subtypes
4365
4366                  when E_Record_Subtype | E_Record_Subtype_With_Private =>
4367                     Write_Header (False);
4368                     Write_Str ("record");
4369                     Indent_Begin;
4370
4371                     declare
4372                        C : Entity_Id;
4373                     begin
4374                        C := First_Entity (Typ);
4375                        while Present (C) loop
4376                           Write_Indent;
4377                           Write_Id (C);
4378                           Write_Str (" : ");
4379                           Write_Id (Etype (C));
4380                           Next_Entity (C);
4381                        end loop;
4382                     end;
4383
4384                     Indent_End;
4385                     Write_Indent_Str (" end record");
4386
4387                  --  Class-Wide types
4388
4389                  when E_Class_Wide_Type    |
4390                       E_Class_Wide_Subtype =>
4391                     Write_Header (Ekind (Typ) = E_Class_Wide_Type);
4392                     Write_Name_With_Col_Check (Chars (Etype (Typ)));
4393                     Write_Str ("'Class");
4394
4395                  --  Subprogram types
4396
4397                  when E_Subprogram_Type =>
4398                     Write_Header;
4399
4400                     if Etype (Typ) = Standard_Void_Type then
4401                        Write_Str ("procedure");
4402                     else
4403                        Write_Str ("function");
4404                     end if;
4405
4406                     if Present (First_Entity (Typ)) then
4407                        Write_Str (" (");
4408
4409                        declare
4410                           Param : Entity_Id;
4411
4412                        begin
4413                           Param := First_Entity (Typ);
4414                           loop
4415                              Write_Id (Param);
4416                              Write_Str (" : ");
4417
4418                              if Ekind (Param) = E_In_Out_Parameter then
4419                                 Write_Str ("in out ");
4420                              elsif Ekind (Param) = E_Out_Parameter then
4421                                 Write_Str ("out ");
4422                              end if;
4423
4424                              Write_Id (Etype (Param));
4425                              Next_Entity (Param);
4426                              exit when No (Param);
4427                              Write_Str (", ");
4428                           end loop;
4429
4430                           Write_Char (')');
4431                        end;
4432                     end if;
4433
4434                     if Etype (Typ) /= Standard_Void_Type then
4435                        Write_Str (" return ");
4436                        Write_Id (Etype (Typ));
4437                     end if;
4438
4439                  when E_String_Literal_Subtype =>
4440                     declare
4441                        LB  : constant Uint :=
4442                                Expr_Value (String_Literal_Low_Bound (Typ));
4443                        Len : constant Uint :=
4444                                String_Literal_Length (Typ);
4445                     begin
4446                        Write_Header (False);
4447                        Write_Str ("String (");
4448                        Write_Int (UI_To_Int (LB));
4449                        Write_Str (" .. ");
4450                        Write_Int (UI_To_Int (LB + Len) - 1);
4451                        Write_Str (");");
4452                     end;
4453
4454                  --  For all other Itypes, print ??? (fill in later)
4455
4456                  when others =>
4457                     Write_Header (True);
4458                     Write_Str ("???");
4459
4460               end case;
4461            end if;
4462
4463            --  Add terminating bracket and restore output buffer
4464
4465            Write_Char (']');
4466            Write_Eol;
4467            Restore_Output_Buffer (S);
4468         end;
4469
4470         Set_Itype_Printed (Typ);
4471      end if;
4472   end Write_Itype;
4473
4474   -------------------------------
4475   -- Write_Name_With_Col_Check --
4476   -------------------------------
4477
4478   procedure Write_Name_With_Col_Check (N : Name_Id) is
4479      J : Natural;
4480      K : Natural;
4481      L : Natural;
4482
4483   begin
4484      Get_Name_String (N);
4485
4486      --  Deal with -gnatdI which replaces any sequence Cnnnb where C is an
4487      --  upper case letter, nnn is one or more digits and b is a lower case
4488      --  letter by C...b, so that listings do not depend on serial numbers.
4489
4490      if Debug_Flag_II then
4491         J := 1;
4492         while J < Name_Len - 1 loop
4493            if Name_Buffer (J) in 'A' .. 'Z'
4494              and then Name_Buffer (J + 1) in '0' .. '9'
4495            then
4496               K := J + 1;
4497               while K < Name_Len loop
4498                  exit when Name_Buffer (K) not in '0' .. '9';
4499                  K := K + 1;
4500               end loop;
4501
4502               if Name_Buffer (K) in 'a' .. 'z' then
4503                  L := Name_Len - K + 1;
4504
4505                  Name_Buffer (J + 4 .. J + L + 3) :=
4506                    Name_Buffer (K .. Name_Len);
4507                  Name_Buffer (J + 1 .. J + 3) := "...";
4508                  Name_Len := J + L + 3;
4509                  J := J + 5;
4510
4511               else
4512                  J := K;
4513               end if;
4514
4515            else
4516               J := J + 1;
4517            end if;
4518         end loop;
4519      end if;
4520
4521      --  Fall through for normal case
4522
4523      Write_Str_With_Col_Check (Name_Buffer (1 .. Name_Len));
4524   end Write_Name_With_Col_Check;
4525
4526   ------------------------------------
4527   -- Write_Name_With_Col_Check_Sloc --
4528   ------------------------------------
4529
4530   procedure Write_Name_With_Col_Check_Sloc (N : Name_Id) is
4531   begin
4532      Get_Name_String (N);
4533      Write_Str_With_Col_Check_Sloc (Name_Buffer (1 .. Name_Len));
4534   end Write_Name_With_Col_Check_Sloc;
4535
4536   --------------------
4537   -- Write_Operator --
4538   --------------------
4539
4540   procedure Write_Operator (N : Node_Id; S : String) is
4541      F : Natural := S'First;
4542      T : Natural := S'Last;
4543
4544   begin
4545      --  If no overflow check, just write string out, and we are done
4546
4547      if not Do_Overflow_Check (N) then
4548         Write_Str_Sloc (S);
4549
4550      --  If overflow check, we want to surround the operator with curly
4551      --  brackets, but not include spaces within the brackets.
4552
4553      else
4554         if S (F) = ' ' then
4555            Write_Char (' ');
4556            F := F + 1;
4557         end if;
4558
4559         if S (T) = ' ' then
4560            T := T - 1;
4561         end if;
4562
4563         Write_Char ('{');
4564         Write_Str_Sloc (S (F .. T));
4565         Write_Char ('}');
4566
4567         if S (S'Last) = ' ' then
4568            Write_Char (' ');
4569         end if;
4570      end if;
4571   end Write_Operator;
4572
4573   -----------------------
4574   -- Write_Param_Specs --
4575   -----------------------
4576
4577   procedure Write_Param_Specs (N : Node_Id) is
4578      Specs         : constant List_Id := Parameter_Specifications (N);
4579      Specs_Present : constant Boolean := Is_Non_Empty_List (Specs);
4580
4581      Ent    : Entity_Id;
4582      Extras : Node_Id;
4583      Spec   : Node_Id;
4584      Formal : Node_Id;
4585
4586      Output : Boolean := False;
4587      --  Set true if we output at least one parameter
4588
4589   begin
4590      --  Write out explicit specs from Parameter_Speficiations list
4591
4592      if Specs_Present then
4593         Write_Str_With_Col_Check (" (");
4594         Output := True;
4595
4596         Spec := First (Specs);
4597         loop
4598            Sprint_Node (Spec);
4599            Formal := Defining_Identifier (Spec);
4600            Next (Spec);
4601            exit when Spec = Empty;
4602
4603            --  Add semicolon, unless we are printing original tree and the
4604            --  next specification is part of a list (but not the first element
4605            --  of that list).
4606
4607            if not Dump_Original_Only or else not Prev_Ids (Spec) then
4608               Write_Str ("; ");
4609            end if;
4610         end loop;
4611      end if;
4612
4613      --  See if we have extra formals
4614
4615      if Nkind_In (N, N_Function_Specification,
4616                      N_Procedure_Specification)
4617      then
4618         Ent := Defining_Entity (N);
4619
4620         --  Loop to write extra formals (if any)
4621
4622         if Present (Ent) and then Is_Subprogram (Ent) then
4623            Extras := Extra_Formals (Ent);
4624
4625            if Present (Extras) then
4626               if not Specs_Present then
4627                  Write_Str_With_Col_Check (" (");
4628                  Output := True;
4629               end if;
4630
4631               Formal := Extras;
4632               while Present (Formal) loop
4633                  if Specs_Present or else Formal /= Extras then
4634                     Write_Str ("; ");
4635                  end if;
4636
4637                  Write_Name_With_Col_Check (Chars (Formal));
4638                  Write_Str (" : ");
4639                  Write_Name_With_Col_Check (Chars (Etype (Formal)));
4640                  Formal := Extra_Formal (Formal);
4641               end loop;
4642            end if;
4643         end if;
4644      end if;
4645
4646      if Output then
4647         Write_Char (')');
4648      end if;
4649   end Write_Param_Specs;
4650
4651   -----------------------
4652   -- Write_Rewrite_Str --
4653   -----------------------
4654
4655   procedure Write_Rewrite_Str (S : String) is
4656   begin
4657      if not Dump_Generated_Only then
4658         if S'Length = 3 and then S = ">>>" then
4659            Write_Str (">>>");
4660         else
4661            Write_Str_With_Col_Check (S);
4662         end if;
4663      end if;
4664   end Write_Rewrite_Str;
4665
4666   -----------------------
4667   -- Write_Source_Line --
4668   -----------------------
4669
4670   procedure Write_Source_Line (L : Physical_Line_Number) is
4671      Loc : Source_Ptr;
4672      Src : Source_Buffer_Ptr;
4673      Scn : Source_Ptr;
4674
4675   begin
4676      if Dump_Source_Text then
4677         Src := Source_Text (Current_Source_File);
4678         Loc := Line_Start (L, Current_Source_File);
4679         Write_Eol;
4680
4681         --  See if line is a comment line, if not, and if not line one,
4682         --  precede with blank line.
4683
4684         Scn := Loc;
4685         while Src (Scn) = ' ' or else Src (Scn) = ASCII.HT loop
4686            Scn := Scn + 1;
4687         end loop;
4688
4689         if (Src (Scn) in Line_Terminator
4690              or else Src (Scn .. Scn + 1) /= "--")
4691           and then L /= 1
4692         then
4693            Write_Eol;
4694         end if;
4695
4696         --  Now write the source text of the line
4697
4698         Write_Str ("-- ");
4699         Write_Int (Int (L));
4700         Write_Str (": ");
4701
4702         while Src (Loc) not in Line_Terminator loop
4703            Write_Char (Src (Loc));
4704            Loc := Loc + 1;
4705         end loop;
4706      end if;
4707   end Write_Source_Line;
4708
4709   ------------------------
4710   -- Write_Source_Lines --
4711   ------------------------
4712
4713   procedure Write_Source_Lines (L : Physical_Line_Number) is
4714   begin
4715      while Last_Line_Printed < L loop
4716         Last_Line_Printed := Last_Line_Printed + 1;
4717         Write_Source_Line (Last_Line_Printed);
4718      end loop;
4719   end Write_Source_Lines;
4720
4721   --------------------
4722   -- Write_Str_Sloc --
4723   --------------------
4724
4725   procedure Write_Str_Sloc (S : String) is
4726   begin
4727      for J in S'Range loop
4728         Write_Char_Sloc (S (J));
4729      end loop;
4730   end Write_Str_Sloc;
4731
4732   ------------------------------
4733   -- Write_Str_With_Col_Check --
4734   ------------------------------
4735
4736   procedure Write_Str_With_Col_Check (S : String) is
4737   begin
4738      if Int (S'Last) + Column > Sprint_Line_Limit then
4739         Write_Indent_Str ("  ");
4740
4741         if S (S'First) = ' ' then
4742            Write_Str (S (S'First + 1 .. S'Last));
4743         else
4744            Write_Str (S);
4745         end if;
4746
4747      else
4748         Write_Str (S);
4749      end if;
4750   end Write_Str_With_Col_Check;
4751
4752   -----------------------------------
4753   -- Write_Str_With_Col_Check_Sloc --
4754   -----------------------------------
4755
4756   procedure Write_Str_With_Col_Check_Sloc (S : String) is
4757   begin
4758      if Int (S'Last) + Column > Sprint_Line_Limit then
4759         Write_Indent_Str ("  ");
4760
4761         if S (S'First) = ' ' then
4762            Write_Str_Sloc (S (S'First + 1 .. S'Last));
4763         else
4764            Write_Str_Sloc (S);
4765         end if;
4766
4767      else
4768         Write_Str_Sloc (S);
4769      end if;
4770   end Write_Str_With_Col_Check_Sloc;
4771
4772   ---------------------------
4773   -- Write_Subprogram_Name --
4774   ---------------------------
4775
4776   procedure Write_Subprogram_Name (N : Node_Id) is
4777   begin
4778      if not Comes_From_Source (N)
4779        and then Is_Entity_Name (N)
4780      then
4781         declare
4782            Ent : constant Entity_Id := Entity (N);
4783         begin
4784            if not In_Extended_Main_Source_Unit (Ent)
4785              and then
4786                Is_Predefined_File_Name
4787                  (Unit_File_Name (Get_Source_Unit (Ent)))
4788            then
4789               --  Run-time routine name, output name with a preceding dollar
4790               --  making sure that we do not get a line split between them.
4791
4792               Col_Check (Length_Of_Name (Chars (Ent)) + 1);
4793               Write_Char ('$');
4794               Write_Name (Chars (Ent));
4795               return;
4796            end if;
4797         end;
4798      end if;
4799
4800      --  Normal case, not a run-time routine name
4801
4802      Sprint_Node (N);
4803   end Write_Subprogram_Name;
4804
4805   -------------------------------
4806   -- Write_Uint_With_Col_Check --
4807   -------------------------------
4808
4809   procedure Write_Uint_With_Col_Check (U : Uint; Format : UI_Format) is
4810   begin
4811      Col_Check (UI_Decimal_Digits_Hi (U));
4812      UI_Write (U, Format);
4813   end Write_Uint_With_Col_Check;
4814
4815   ------------------------------------
4816   -- Write_Uint_With_Col_Check_Sloc --
4817   ------------------------------------
4818
4819   procedure Write_Uint_With_Col_Check_Sloc (U : Uint; Format : UI_Format) is
4820   begin
4821      Col_Check (UI_Decimal_Digits_Hi (U));
4822      Set_Debug_Sloc;
4823      UI_Write (U, Format);
4824   end Write_Uint_With_Col_Check_Sloc;
4825
4826   -------------------------------------
4827   -- Write_Ureal_With_Col_Check_Sloc --
4828   -------------------------------------
4829
4830   procedure Write_Ureal_With_Col_Check_Sloc (U : Ureal) is
4831      D : constant Uint := Denominator (U);
4832      N : constant Uint := Numerator (U);
4833   begin
4834      Col_Check (UI_Decimal_Digits_Hi (D) + UI_Decimal_Digits_Hi (N) + 4);
4835      Set_Debug_Sloc;
4836      UR_Write (U, Brackets => True);
4837   end Write_Ureal_With_Col_Check_Sloc;
4838
4839end Sprint;
4840