--          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 TYPE_ANCHORED
   --
   -- Root of anchored declaration type marks: TYPE_LIKE_CURRENT,
   -- TYPE_LIKE_FEATURE and TYPE_LIKE_ARGUMENT.
   --

inherit
   E_TYPE
      redefine is_anchored, is_boolean, is_character, is_integer, is_real,
         is_double, is_string, is_bit, is_pointer
      end

feature

   start_position: POSITION
         -- Of first letter of `like'.

   is_anchored: BOOLEAN is true

feature

   frozen pretty_print is
      do
         pretty_printer.put_string(written_mark)
      end

   frozen id: INTEGER is
      do
         Result := run_class.id
      end

   frozen base_class_name: CLASS_NAME is
      do
         Result := run_type.base_class_name
      end

   frozen actual_reference(destination: E_TYPE): E_TYPE is
      do
         Result := run_type.actual_reference(destination)
      end

   frozen actual_separate(destination: E_TYPE): E_TYPE is
      do
         Result := run_type.actual_separate(destination)
      end

   frozen smallest_ancestor(other: E_TYPE): E_TYPE is
      do
         Result := run_type.smallest_ancestor(other)
      end

   frozen run_time_mark: STRING is
      do
         if run_type /= Void then
            Result := run_type.run_time_mark
         end
      end

   frozen is_expanded: BOOLEAN is
      do
         Result := run_type.is_expanded
      end

   frozen is_separate: BOOLEAN is
      do
         Result := run_type.is_separate
      end

   is_basic_eiffel_expanded: BOOLEAN is
      do
         Result := run_type.is_basic_eiffel_expanded
      end

   frozen is_reference: BOOLEAN is
      do
         Result := run_type.is_reference
      end

   frozen is_user_expanded: BOOLEAN is
      do
         Result := run_type.is_user_expanded
      end

   frozen is_dummy_expanded: BOOLEAN is
      do
         Result := run_type.is_dummy_expanded
      end

   frozen is_generic: BOOLEAN is
      do
         Result := run_type.is_generic
      end

   frozen generic_list: ARRAY[E_TYPE] is
      do
         if is_generic then
            Result := run_type.generic_list
         else
            fatal_error_generic_list
         end
      end

   frozen local_from_separate: E_TYPE is
      do
	 Result := run_type.local_from_separate
      end

   frozen c_header_pass1 is
      do
         run_type.c_header_pass1
      end

   frozen c_header_pass2 is
      do
         run_type.c_header_pass2
      end

   frozen c_header_pass3 is
      do
         run_type.c_header_pass3
      end

   frozen c_header_pass4 is
      do
         run_type.c_header_pass4
      end

   frozen c_type_for_argument_in(str: STRING) is
      do
         run_type.c_type_for_argument_in(str)
      end

   frozen c_type_for_target_in(str: STRING) is
      do
         run_type.c_type_for_target_in(str)
      end

   frozen c_type_for_result_in(str: STRING) is
      do
         run_type.c_type_for_result_in(str)
      end

   frozen need_c_struct: BOOLEAN is
      do
         Result := run_type.need_c_struct
      end

   frozen c_initialize is
      do
         run_type.c_initialize
      end

   frozen c_initialize_in(str: STRING) is
      do
         run_type.c_initialize_in(str)
      end

   frozen jvm_method_flags: INTEGER is
      do
         Result := run_type.jvm_method_flags
      end

   frozen jvm_descriptor_in(str: STRING) is
      do
         run_type.jvm_descriptor_in(str)
      end

   frozen jvm_target_descriptor_in(str: STRING) is
      do
         run_type.jvm_target_descriptor_in(str)
      end

   frozen jvm_return_code is
      do
         run_type.jvm_return_code
      end

   frozen jvm_push_local(offset: INTEGER) is
      do
         run_type.jvm_push_local(offset)
      end

   frozen jvm_check_class_invariant is
      do
         run_type.jvm_check_class_invariant
      end

   frozen jvm_push_default: INTEGER is
      do
         Result := run_type.jvm_push_default
      end

   frozen jvm_write_local_creation(offset: INTEGER) is
      do
         run_type.jvm_write_local_creation(offset)
      end

   frozen jvm_write_local(offset: INTEGER) is
      do
         run_type.jvm_write_local(offset)
      end

   frozen jvm_xnewarray is
      do
         run_type.jvm_xnewarray
      end

   frozen jvm_xastore is
      do
         run_type.jvm_xastore
      end

   frozen jvm_xaload is
      do
         run_type.jvm_xaload
      end

   frozen jvm_if_x_eq: INTEGER is
      do
         Result := run_type.jvm_if_x_eq
      end

   frozen jvm_if_x_ne: INTEGER is
      do
         Result := run_type.jvm_if_x_ne
      end

   frozen jvm_to_reference is
      do
         run_type.jvm_to_reference
      end

   frozen jvm_expanded_from_reference(other: E_TYPE): INTEGER is
      do
         check
            false
         end
      end

   frozen jvm_convert_to(destination: E_TYPE): INTEGER is
      do
         Result := run_type.jvm_convert_to(destination.run_type)
      end

   frozen jvm_standard_is_equal is
      do
         run_type.jvm_standard_is_equal
      end

   frozen c_sizeof: INTEGER is
      do
         Result := run_type.c_sizeof
      end

   frozen is_boolean: BOOLEAN is
      do
         Result := run_type.is_boolean
      end

   frozen is_character: BOOLEAN is
      do
         Result := run_type.is_character
      end

   frozen is_integer: BOOLEAN is
      do
         Result := run_type.is_integer
      end

   frozen is_real: BOOLEAN is
      do
         Result := run_type.is_real
      end

   frozen is_double: BOOLEAN is
      do
         Result := run_type.is_double
      end

   frozen is_string: BOOLEAN is
      do
         Result := run_type.is_string
      end

   frozen is_array: BOOLEAN is
      do
         Result := run_type.is_array
      end

   frozen is_bit: BOOLEAN is
      do
         Result := run_type.is_bit
      end

   frozen is_any: BOOLEAN is
      do
         Result := run_type.is_any
      end

   frozen is_none: BOOLEAN is
      do
         Result := run_type.is_none
      end

   frozen is_pointer: BOOLEAN is
      do
         Result := run_type.is_pointer
      end

feature {RUN_CLASS,E_TYPE}

   frozen need_gc_mark_function: BOOLEAN is
      do
         Result := run_type.need_gc_mark_function
      end

   frozen just_before_gc_mark_in(str: STRING) is
      do
         run_type.just_before_gc_mark_in(str)
      end

   frozen gc_info_in(str: STRING) is
      do
         run_type.gc_info_in(str)
      end

   frozen gc_define1 is
      do
         run_type.gc_define1
      end

   frozen gc_define2 is
      do
         run_type.gc_define2
      end

feature {NONE}

   written_mark_buffer: STRING is
      once
	 !!Result.make(128)
      end

   anchor_cycle_start is
      local
         i: INTEGER
      do
         if visited.upper < 0 then
            visited.add_last(start_position)
         elseif visited.fast_has(start_position) then
            from
               i := 0
            until
               i > visited.upper
            loop
               error_handler.add_position(visited.item(i))
               i := i + 1
            end
            fatal_error(fz_cad)
         else
            visited.add_last(start_position)
         end
      ensure
         not visited.is_empty
      end

   anchor_cycle_end is
      do
         if start_position = visited.first then
            visited.clear
         end
      end

   visited: FIXED_ARRAY[POSITION] is
         -- Cycle detection.
      once
         !!Result.with_capacity(4)
      end

end -- TYPE_ANCHORED

