------------------------------------------------------------------------------
--                                                                          --
--                         GNAT COMPILER COMPONENTS                         --
--                                                                          --
--                                D E B U G                                 --
--                                                                          --
--                                 S p e c                                  --
--                                                                          --
--          Copyright (C) 1992-2019, 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 3,  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.                                     --
--                                                                          --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception,   --
-- version 3.1, as published by the Free Software Foundation.               --
--                                                                          --
-- You should have received a copy of the GNU General Public License and    --
-- a copy of the GCC Runtime Library Exception along with this program;     --
-- see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see    --
-- <http://www.gnu.org/licenses/>.                                          --
--                                                                          --
-- GNAT was originally developed  by the GNAT team at  New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc.      --
--                                                                          --
------------------------------------------------------------------------------

--  This package contains global flags used to control the inclusion
--  of debugging code in various phases of the compiler. Some of these
--  flags are also used by the binder and gnatmake.

package Debug is
   pragma Preelaborate;

   -------------------------
   -- Dynamic Debug Flags --
   -------------------------

   --  Flags that can be used to activate various specialized debugging output
   --  information. The flags are preset to False, which corresponds to the
   --  given output being suppressed. The individual flags can be turned on
   --  using the undocumented switch dxxx where xxx is a string of letters for
   --  flags to be turned on. Documentation on the current usage of these flags
   --  is contained in the body of Debug rather than the spec, so that we don't
   --  have to recompile the world when a new debug flag is added.

   Debug_Flag_A : Boolean := False;
   Debug_Flag_B : Boolean := False;
   Debug_Flag_C : Boolean := False;
   Debug_Flag_D : Boolean := False;
   Debug_Flag_E : Boolean := False;
   Debug_Flag_F : Boolean := False;
   Debug_Flag_G : Boolean := False;
   Debug_Flag_H : Boolean := False;
   Debug_Flag_I : Boolean := False;
   Debug_Flag_J : Boolean := False;
   Debug_Flag_K : Boolean := False;
   Debug_Flag_L : Boolean := False;
   Debug_Flag_M : Boolean := False;
   Debug_Flag_N : Boolean := False;
   Debug_Flag_O : Boolean := False;
   Debug_Flag_P : Boolean := False;
   Debug_Flag_Q : Boolean := False;
   Debug_Flag_R : Boolean := False;
   Debug_Flag_S : Boolean := False;
   Debug_Flag_T : Boolean := False;
   Debug_Flag_U : Boolean := False;
   Debug_Flag_V : Boolean := False;
   Debug_Flag_W : Boolean := False;
   Debug_Flag_X : Boolean := False;
   Debug_Flag_Y : Boolean := False;
   Debug_Flag_Z : Boolean := False;

   Debug_Flag_AA : Boolean := False;
   Debug_Flag_BB : Boolean := False;
   Debug_Flag_CC : Boolean := False;
   Debug_Flag_DD : Boolean := False;
   Debug_Flag_EE : Boolean := False;
   Debug_Flag_FF : Boolean := False;
   Debug_Flag_GG : Boolean := False;
   Debug_Flag_HH : Boolean := False;
   Debug_Flag_II : Boolean := False;
   Debug_Flag_JJ : Boolean := False;
   Debug_Flag_KK : Boolean := False;
   Debug_Flag_LL : Boolean := False;
   Debug_Flag_MM : Boolean := False;
   Debug_Flag_NN : Boolean := False;
   Debug_Flag_OO : Boolean := False;
   Debug_Flag_PP : Boolean := False;
   Debug_Flag_QQ : Boolean := False;
   Debug_Flag_RR : Boolean := False;
   Debug_Flag_SS : Boolean := False;
   Debug_Flag_TT : Boolean := False;
   Debug_Flag_UU : Boolean := False;
   Debug_Flag_VV : Boolean := False;
   Debug_Flag_WW : Boolean := False;
   Debug_Flag_XX : Boolean := False;
   Debug_Flag_YY : Boolean := False;
   Debug_Flag_ZZ : Boolean := False;

   Debug_Flag_1 : Boolean := False;
   Debug_Flag_2 : Boolean := False;
   Debug_Flag_3 : Boolean := False;
   Debug_Flag_4 : Boolean := False;
   Debug_Flag_5 : Boolean := False;
   Debug_Flag_6 : Boolean := False;
   Debug_Flag_7 : Boolean := False;
   Debug_Flag_8 : Boolean := False;
   Debug_Flag_9 : Boolean := False;

   Debug_Flag_Dot_A : Boolean := False;
   Debug_Flag_Dot_B : Boolean := False;
   Debug_Flag_Dot_C : Boolean := False;
   Debug_Flag_Dot_D : Boolean := False;
   Debug_Flag_Dot_E : Boolean := False;
   Debug_Flag_Dot_F : Boolean := False;
   Debug_Flag_Dot_G : Boolean := False;
   Debug_Flag_Dot_H : Boolean := False;
   Debug_Flag_Dot_I : Boolean := False;
   Debug_Flag_Dot_J : Boolean := False;
   Debug_Flag_Dot_K : Boolean := False;
   Debug_Flag_Dot_L : Boolean := False;
   Debug_Flag_Dot_M : Boolean := False;
   Debug_Flag_Dot_N : Boolean := False;
   Debug_Flag_Dot_O : Boolean := False;
   Debug_Flag_Dot_P : Boolean := False;
   Debug_Flag_Dot_Q : Boolean := False;
   Debug_Flag_Dot_R : Boolean := False;
   Debug_Flag_Dot_S : Boolean := False;
   Debug_Flag_Dot_T : Boolean := False;
   Debug_Flag_Dot_U : Boolean := False;
   Debug_Flag_Dot_V : Boolean := False;
   Debug_Flag_Dot_W : Boolean := False;
   Debug_Flag_Dot_X : Boolean := False;
   Debug_Flag_Dot_Y : Boolean := False;
   Debug_Flag_Dot_Z : Boolean := False;

   Debug_Flag_Dot_AA : Boolean := False;
   Debug_Flag_Dot_BB : Boolean := False;
   Debug_Flag_Dot_CC : Boolean := False;
   Debug_Flag_Dot_DD : Boolean := False;
   Debug_Flag_Dot_EE : Boolean := False;
   Debug_Flag_Dot_FF : Boolean := False;
   Debug_Flag_Dot_GG : Boolean := False;
   Debug_Flag_Dot_HH : Boolean := False;
   Debug_Flag_Dot_II : Boolean := False;
   Debug_Flag_Dot_JJ : Boolean := False;
   Debug_Flag_Dot_KK : Boolean := False;
   Debug_Flag_Dot_LL : Boolean := False;
   Debug_Flag_Dot_MM : Boolean := False;
   Debug_Flag_Dot_NN : Boolean := False;
   Debug_Flag_Dot_OO : Boolean := False;
   Debug_Flag_Dot_PP : Boolean := False;
   Debug_Flag_Dot_QQ : Boolean := False;
   Debug_Flag_Dot_RR : Boolean := False;
   Debug_Flag_Dot_SS : Boolean := False;
   Debug_Flag_Dot_TT : Boolean := False;
   Debug_Flag_Dot_UU : Boolean := False;
   Debug_Flag_Dot_VV : Boolean := False;
   Debug_Flag_Dot_WW : Boolean := False;
   Debug_Flag_Dot_XX : Boolean := False;
   Debug_Flag_Dot_YY : Boolean := False;
   Debug_Flag_Dot_ZZ : Boolean := False;

   Debug_Flag_Dot_1 : Boolean := False;
   Debug_Flag_Dot_2 : Boolean := False;
   Debug_Flag_Dot_3 : Boolean := False;
   Debug_Flag_Dot_4 : Boolean := False;
   Debug_Flag_Dot_5 : Boolean := False;
   Debug_Flag_Dot_6 : Boolean := False;
   Debug_Flag_Dot_7 : Boolean := False;
   Debug_Flag_Dot_8 : Boolean := False;
   Debug_Flag_Dot_9 : Boolean := False;

   Debug_Flag_Underscore_A : Boolean := False;
   Debug_Flag_Underscore_B : Boolean := False;
   Debug_Flag_Underscore_C : Boolean := False;
   Debug_Flag_Underscore_D : Boolean := False;
   Debug_Flag_Underscore_E : Boolean := False;
   Debug_Flag_Underscore_F : Boolean := False;
   Debug_Flag_Underscore_G : Boolean := False;
   Debug_Flag_Underscore_H : Boolean := False;
   Debug_Flag_Underscore_I : Boolean := False;
   Debug_Flag_Underscore_J : Boolean := False;
   Debug_Flag_Underscore_K : Boolean := False;
   Debug_Flag_Underscore_L : Boolean := False;
   Debug_Flag_Underscore_M : Boolean := False;
   Debug_Flag_Underscore_N : Boolean := False;
   Debug_Flag_Underscore_O : Boolean := False;
   Debug_Flag_Underscore_P : Boolean := False;
   Debug_Flag_Underscore_Q : Boolean := False;
   Debug_Flag_Underscore_R : Boolean := False;
   Debug_Flag_Underscore_S : Boolean := False;
   Debug_Flag_Underscore_T : Boolean := False;
   Debug_Flag_Underscore_U : Boolean := False;
   Debug_Flag_Underscore_V : Boolean := False;
   Debug_Flag_Underscore_W : Boolean := False;
   Debug_Flag_Underscore_X : Boolean := False;
   Debug_Flag_Underscore_Y : Boolean := False;
   Debug_Flag_Underscore_Z : Boolean := False;

   Debug_Flag_Underscore_AA : Boolean := False;
   Debug_Flag_Underscore_BB : Boolean := False;
   Debug_Flag_Underscore_CC : Boolean := False;
   Debug_Flag_Underscore_DD : Boolean := False;
   Debug_Flag_Underscore_EE : Boolean := False;
   Debug_Flag_Underscore_FF : Boolean := False;
   Debug_Flag_Underscore_GG : Boolean := False;
   Debug_Flag_Underscore_HH : Boolean := False;
   Debug_Flag_Underscore_II : Boolean := False;
   Debug_Flag_Underscore_JJ : Boolean := False;
   Debug_Flag_Underscore_KK : Boolean := False;
   Debug_Flag_Underscore_LL : Boolean := False;
   Debug_Flag_Underscore_MM : Boolean := False;
   Debug_Flag_Underscore_NN : Boolean := False;
   Debug_Flag_Underscore_OO : Boolean := False;
   Debug_Flag_Underscore_PP : Boolean := False;
   Debug_Flag_Underscore_QQ : Boolean := False;
   Debug_Flag_Underscore_RR : Boolean := False;
   Debug_Flag_Underscore_SS : Boolean := False;
   Debug_Flag_Underscore_TT : Boolean := False;
   Debug_Flag_Underscore_UU : Boolean := False;
   Debug_Flag_Underscore_VV : Boolean := False;
   Debug_Flag_Underscore_WW : Boolean := False;
   Debug_Flag_Underscore_XX : Boolean := False;
   Debug_Flag_Underscore_YY : Boolean := False;
   Debug_Flag_Underscore_ZZ : Boolean := False;

   Debug_Flag_Underscore_1 : Boolean := False;
   Debug_Flag_Underscore_2 : Boolean := False;
   Debug_Flag_Underscore_3 : Boolean := False;
   Debug_Flag_Underscore_4 : Boolean := False;
   Debug_Flag_Underscore_5 : Boolean := False;
   Debug_Flag_Underscore_6 : Boolean := False;
   Debug_Flag_Underscore_7 : Boolean := False;
   Debug_Flag_Underscore_8 : Boolean := False;
   Debug_Flag_Underscore_9 : Boolean := False;

   procedure Set_Debug_Flag (C : Character; Val : Boolean := True);
   --  Where C is 0-9, A-Z, or a-z, sets the corresponding debug flag to
   --  the given value. In the checks off version of debug, the call to
   --  Set_Debug_Flag is always a null operation.

   procedure Set_Dotted_Debug_Flag (C : Character; Val : Boolean := True);
   --  Where C is 0-9, A-Z, or a-z, sets the corresponding dotted debug
   --  flag (e.g. call with C = 'a' for the .a flag).

   procedure Set_Underscored_Debug_Flag (C : Character; Val : Boolean := True);
   --  Where C is 0-9, A-Z, or a-z, sets the corresponding underscored debug
   --  flag (e.g. call with C = 'a' for the _a flag).

end Debug;
