-- This file is part of Liberty Eiffel.
--
-- Liberty Eiffel 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, version 3 of the License.
--
-- Liberty Eiffel 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 Liberty Eiffel.  If not, see <http://www.gnu.org/licenses/>.
--
class LIBERTY_UNKNOWN_TYPE
   --
   -- An unknown type, i.e. we know nothing about it except its name (happens when the corresponding source
   -- cannot be found).
   --
   -- Should be used only for some unresolved export clients.
   --

inherit
   LIBERTY_TYPE
      undefine is_equal
      end

insert
   SINGLETON
      redefine out_in_tagged_out_memory
      end

creation {LIBERTY_TYPE_RESOLVER}
   make

feature {ANY}
   known_type: LIBERTY_KNOWN_TYPE is
      do
         check Result = Void end
      end

   is_known: BOOLEAN is False

   full_name: FIXED_STRING

   hash_code: INTEGER is 19741215

   out_in_tagged_out_memory is
      do
         tagged_out_memory.append(once "{unknown type ")
         tagged_out_memory.append(full_name)
         tagged_out_memory.extend('}')
      end

   specialized_in (a_type: LIBERTY_ACTUAL_TYPE): like Current is
      do
         Result := Current
      end

feature {LIBERTY_KNOWN_TYPE}
   full_name_in (buffer: STRING) is
      do
         buffer.append(full_name)
      end

feature {}
   make (a_full_name: like full_name) is
      require
         a_full_name /= Void
      do
         full_name := a_full_name
      ensure
         full_name = a_full_name
      end

invariant
   full_name /= Void
   not is_reachable

end -- class LIBERTY_UNKNOWN_TYPE