| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT COMPILER COMPONENTS -- |
| -- -- |
| -- D E B U G _ A -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- $Revision: 1.11 $ -- |
| -- -- |
| -- Copyright (C) 1992-1998 Free Software Foundation, Inc. -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 2, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- |
| -- for more details. You should have received a copy of the GNU General -- |
| -- Public License distributed with GNAT; see file COPYING. If not, write -- |
| -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- |
| -- MA 02111-1307, USA. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| with Atree; use Atree; |
| with Debug; use Debug; |
| with Sinfo; use Sinfo; |
| with Sinput; use Sinput; |
| with Output; use Output; |
| |
| package body Debug_A is |
| |
| Debug_A_Depth : Natural := 0; |
| -- Output for the debug A flag is preceded by a sequence of vertical bar |
| -- characters corresponding to the recursion depth of the actions being |
| -- recorded (analysis, expansion, resolution and evaluation of nodes) |
| -- This variable records the depth. |
| |
| Max_Node_Ids : constant := 200; |
| -- Maximum number of Node_Id values that get stacked |
| |
| Node_Ids : array (1 .. Max_Node_Ids) of Node_Id; |
| -- A stack used to keep track of Node_Id values for setting the value of |
| -- Current_Error_Node correctly. Note that if we have more than 200 |
| -- recursion levels, we just don't reset the right value on exit, which |
| -- is not crucial, since this is only for debugging! |
| |
| ----------------------- |
| -- Local Subprograms -- |
| ----------------------- |
| |
| procedure Debug_Output_Astring; |
| -- Outputs Debug_A_Depth number of vertical bars, used to preface messages |
| |
| ------------------- |
| -- Debug_A_Entry -- |
| ------------------- |
| |
| procedure Debug_A_Entry (S : String; N : Node_Id) is |
| begin |
| if Debug_Flag_A then |
| Debug_Output_Astring; |
| Write_Str (S); |
| Write_Str ("Node_Id = "); |
| Write_Int (Int (N)); |
| Write_Str (" "); |
| Write_Location (Sloc (N)); |
| Write_Str (" "); |
| Write_Str (Node_Kind'Image (Nkind (N))); |
| Write_Eol; |
| end if; |
| |
| Debug_A_Depth := Debug_A_Depth + 1; |
| Current_Error_Node := N; |
| |
| if Debug_A_Depth <= Max_Node_Ids then |
| Node_Ids (Debug_A_Depth) := N; |
| end if; |
| end Debug_A_Entry; |
| |
| ------------------ |
| -- Debug_A_Exit -- |
| ------------------ |
| |
| procedure Debug_A_Exit (S : String; N : Node_Id; Comment : String) is |
| begin |
| Debug_A_Depth := Debug_A_Depth - 1; |
| |
| if Debug_A_Depth in 1 .. Max_Node_Ids then |
| Current_Error_Node := Node_Ids (Debug_A_Depth); |
| end if; |
| |
| if Debug_Flag_A then |
| Debug_Output_Astring; |
| Write_Str (S); |
| Write_Str ("Node_Id = "); |
| Write_Int (Int (N)); |
| Write_Str (Comment); |
| Write_Eol; |
| end if; |
| end Debug_A_Exit; |
| |
| -------------------------- |
| -- Debug_Output_Astring -- |
| -------------------------- |
| |
| procedure Debug_Output_Astring is |
| Vbars : String := "|||||||||||||||||||||||||"; |
| -- Should be constant, removed because of GNAT 1.78 bug ??? |
| |
| begin |
| if Debug_A_Depth > Vbars'Length then |
| for I in Vbars'Length .. Debug_A_Depth loop |
| Write_Char ('|'); |
| end loop; |
| |
| Write_Str (Vbars); |
| |
| else |
| Write_Str (Vbars (1 .. Debug_A_Depth)); |
| end if; |
| end Debug_Output_Astring; |
| |
| end Debug_A; |
