--          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://www.loria.fr/SmallEiffel
-- 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 EXPORT_ITEM
--   
-- To store one item of the option "inherit ... export ... end".
--

inherit GLOBALS;

creation {ANY}
   make_all, make
   
feature {ANY}
   
   clients: CLIENT_LIST;
   
   list: FEATURE_NAME_LIST;
   
feature {ANY}
   
   make_all(c: like clients) is
      require
	 c /= Void;
      do
	 clients := c;
	 list := Void;
      end;
   
   make(c: like clients; l: ARRAY[FEATURE_NAME]) is
      require
	 c /= Void;
	 l /= Void;
	 not l.empty;
      do
	 clients := c;
	 !!list.make(l);
      ensure
	 clients = c;
      end;
   
   for_all: BOOLEAN is
	 -- True when "all" primitives affected;
      do
	 Result := list = Void;
      end;
   
   affect(fn: FEATURE_NAME): BOOLEAN is
      do
	 if for_all then
	    Result := true;
	 else
	    Result := list.has(fn);
	 end; 
      end;
      
   pretty_print is
      local
	 i: INTEGER;
      do
	 clients.pretty_print;
	 if for_all then
	    fmt.keyword("all");
	 else
	    list.pretty_print;
	 end;
      end;
   
invariant
   
   clients /= Void;
   
end -- EXPORT_ITEM