-- This file is part of SmartEiffel The GNU Eiffel Compiler Tools and Libraries
--
-- SmartEiffel is  free software;  you can redistribute it and/or  modify it
-- under  the terms of the  GNU General Public License, as published by  the
-- Free Software Foundation; either version 2, or (at your option) any later
-- version.
-- SmartEiffel is distributed in the hope that it will be useful but WITHOUT 
-- 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 along with SmartEiffel;  see the file COPYING.  If not,  write to
-- the Free Software Foundation,  Inc., 59 Temple Place - Suite 330,  Boston, 
-- MA 02111-1307, USA.
--
-- Copyright(C) 1994-2002: INRIA - LORIA (INRIA Lorraine) - ESIAL U.H.P.
--			   - University of Nancy 1 - FRANCE
-- Copyright(C) 2003:      INRIA - LORIA (INRIA Lorraine) - I.U.T. Charlemagne
--			   - University of Nancy 2 - FRANCE
--
--		 Dominique COLNET, Suzanne COLLIN, Olivier ZENDRA,
--			   Philippe RIBET, Cyril ADRIAN
--
-- http://SmartEiffel.loria.fr - SmartEiffel@loria.fr
--
class EXCEPTIONS_HANDLER
   --
   -- Unique global object in charge of EXCEPTION handling.
   --
inherit
   GLOBALS
   VISITABLE

creation make

feature {EXCEPTIONS_HANDLER_VISITOR}

   accept(visitor: EXCEPTIONS_HANDLER_VISITOR) is
      do
         visitor.visit_exceptions_handler(Current)
      end

feature

   used: BOOLEAN
         -- Indicate wheter the live code uses EXCEPTIONS or not.

feature {E_INSPECT,MANIFEST_STRING_INSPECTOR}

   bad_inspect_value(p: POSITION) is
	 -- When some Eiffel "inspect" instruction without the optional
	 -- "else" part does not match the input.
      require
         ace.no_check
      do
         if used then
            cpp.put_string(
               once "internal_exception_handler(Incorrect_inspect_value);%N")
         else
            cpp.put_string(once "error1(%"Invalid inspect (nothing selected).%",")
            cpp.put_position(p)
            cpp.put_string(fz_14)
         end
      end

feature {RUN_FEATURE}

   set_used is
      do
         used := True
      end

feature {C_PRETTY_PRINTER}

   customize_c_runtime is
      do
         if used then
            cpp.sys_runtime_h_and_c(once "exceptions")
         end
      end

   initialize_runtime is
      do
         if used then
            cpp.put_string(once "setup_signal_handler();%N")
         end
      end

   se_evobt is
      require
         ace.boost
      do
         if used then
            cpp.put_string(once "internal_exception_handler(Void_call_target)")
         else
            cpp.put_string(once "se_print_run_time_stack(),exit(1)")
         end
      end

feature {NONE}

   make is
      do
      end

end -- EXCEPTIONS_HANDLER
