--          This file is part of SmallEiffel The GNU Eiffel Compiler.
--          Copyright (C) 1994-98 LORIA - UHP - CRIN - INRIA - FRANCE
--            Dominique COLNET and Suzanne COLLIN - colnet@loria.fr
--                       http://SmallEiffel.loria.fr
-- SmallEiffel 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. SmallEiffel 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  SmallEiffel;  see the file COPYING.  If not,
-- write to the  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-- Boston, MA 02111-1307, USA.
--
class ADDRESS_OF_POOL
   --
   -- Unique global object in charge of $ operator calls.
   --

inherit GLOBALS;

feature {NONE}

   registered: FIXED_ARRAY[RUN_FEATURE] is
      once
         !!Result.with_capacity(64);
      end;

   caller_memory: FIXED_ARRAY[ADDRESS_OF] is
      once
         !!Result.with_capacity(64);
      end;

feature {ADDRESS_OF}

   register_for(address_of: ADDRESS_OF) is
      require
         address_of /= Void
      local
         rf: RUN_FEATURE;
      do
         rf := address_of.run_feature;
         if not registered.fast_has(rf) then
            registered.add_last(rf);
            caller_memory.add_last(address_of);
         end;
      ensure
         registered.fast_has(address_of.run_feature)
      end;

feature {SMALL_EIFFEL}

   falling_down is
      local
         i: INTEGER;
      do
         from
            i := registered.upper;
         until
            i < 0
         loop
            switch_collection.update_with(registered.item(i));
            i := i - 1;
         end;
      end;

   c_define is
      local
         i: INTEGER;
      do
         i := registered.upper;
         if i >= 0 then
            from
            until
               i < 0
            loop
               registered.item(i).address_of_c_define(caller_memory.item(i));
               i := i - 1;
            end;
         end;
      end;

end -- ADDRESS_OF_POOL