--          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.
--
deferred class LOCAL_ARGUMENT
   --
   -- Common root to handle local variables (LOCAL_NAME) or formal
   -- argument names (ARGUMENT_NAME).
   --

inherit NAME; EXPRESSION redefine to_runnable end

feature

   start_position: POSITION
         -- Of the first character of the name.

   is_void: BOOLEAN is false

   is_manifest_string: BOOLEAN is false

   is_current: BOOLEAN is false

   is_result: BOOLEAN is false

   can_be_dropped: BOOLEAN is true

   c_simple: BOOLEAN is true

   is_pre_computable: BOOLEAN is false

   is_static: BOOLEAN is false

   use_current: BOOLEAN is false

   to_string: STRING is
      deferred
      end

   to_runnable(ct: E_TYPE): like Current is
      deferred
      end

   rank: INTEGER is
         -- in the corresponding flat list.
      deferred
      ensure
         Result >= 1
      end

   frozen to_integer_or_error: INTEGER is
      do
	 to_integer_error
      end

   frozen stupid_switch(run_time_set: RUN_TIME_SET): BOOLEAN is
      do
         if smart_eiffel.stupid_switch(result_type,run_time_set) then
            Result := true
         end
      end

   frozen start_lookup_class: BASE_CLASS is
      do
         Result := result_type.start_lookup_class
      end

   frozen afd_check is do end

   frozen safety_check is do end

   frozen static_value: INTEGER is
      do
      end

   frozen to_key: STRING is
      do
         Result := to_string
      end

   frozen collect_c_tmp is
      do
      end

   frozen c_frame_descriptor(format, locals: STRING) is
      do
      end

   frozen compile_target_to_jvm is
      do
         standard_compile_target_to_jvm
      end

   frozen precedence: INTEGER is
      do
         Result := atomic_precedence
      end

   frozen print_as_target is
      do
         pretty_printer.put_string(to_string)
         pretty_printer.put_character('.')
      end

   frozen short is
      local
         i: INTEGER
         c: CHARACTER
      do
         short_print.hook("Ban")
         from
            i := 1
         until
            i > to_string.count
         loop
            c := to_string.item(i)
            if c = '_' then
               short_print.hook_or("Uan","_")
            else
               short_print.a_character(c)
            end
            i := i + 1
         end
         short_print.hook("Aan")
      end

   frozen short_target is
      do
         short
         short_print.a_dot
      end

feature {DECLARATION_LIST}

   c_scoop_struct_in(buf: STRING) is
      local
         t: E_TYPE
      do
         t := result_type.run_type
         t.c_type_for_result_in(buf)
         buf.extend(' ')
         buf.extend('_')
         buf.append(to_string)
         buf.extend(';')
      end

invariant

   not start_position.is_unknown

end -- LOCAL_ARGUMENT