--          This file is part of SmartEiffel The GNU Eiffel Compiler.
--       Copyright (C) 1994-2002 LORIA - INRIA - U.H.P. Nancy 1 - FRANCE
--          Dominique COLNET and Suzanne COLLIN - SmartEiffel@loria.fr
--                       http://SmartEiffel.loria.fr
-- 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.
--
class CST_ATT_UNIQUE
   --
   -- For "unique" constant attribute.
   --

inherit CST_ATT

creation make

feature

   value(i: INTEGER): INTEGER_CONSTANT is
      do
         Result := values.item(i - 1)
      end

feature {NONE}

   values: FIXED_ARRAY[INTEGER_CONSTANT]

   make(n: like names; t: like result_type) is
      require
         n /= Void
         t.is_integer
      local
         i, j: INTEGER; ic: INTEGER_CONSTANT
      do
         make_e_feature(n)
         result_type := t
         i := names.count
         create values.with_capacity(i)
         from
            j := 1
         until
            i = 0
         loop
            counter.increment
            create ic.make(0, -counter.value, names.item(j).start_position)
            values.add_last(ic)
            j := j + 1
            i := i - 1
         end
      end

   pretty_constant_value_ is
      do
         pretty_printer.put_string(once "unique")
      end

   counter: COUNTER is
      once
         create Result
      end

end -- CST_ATT_UNIQUE