-- 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_AST_WHEN_VALUE

inherit
   LIBERTY_AST_NON_TERMINAL_NODE

create {LIBERTY_NODE_FACTORY}
   make

feature {LIBERTY_AST_HANDLER}
   is_number: BOOLEAN is
      do
         Result := nodes.first.name.is_equal(once "KW number")
      end

   number: LIBERTY_AST_NUMBER is
      require
         is_number
      do
         Result ::= nodes.first
      end

   is_character: BOOLEAN is
      do
         Result := nodes.first.name.is_equal(once "KW character")
      end

   character: LIBERTY_AST_CHARACTER is
      require
         is_character
      do
         Result ::= nodes.first
      end

   is_string: BOOLEAN is
      do
         Result := nodes.first.name.is_equal(once "KW string")
      end

   string: LIBERTY_AST_STRING is
      require
         is_string
      do
         Result ::= nodes.first
      end

   is_entity_name: BOOLEAN is
      do
         Result := nodes.first.name.is_equal(once "KW entity name")
      end

   entity_name: LIBERTY_AST_ENTITY_NAME is
      require
         is_entity_name
      do
         Result ::= nodes.first
      end

feature {ANY}
   count: INTEGER is 1

   name: STRING is "When_Value"

feature {}
   possible_counts: SET[INTEGER] is
      once
         Result := {AVL_SET[INTEGER] << 1 >> }
      end

end