old_contents: """
  Provides helper functionality specificially for Qt5 QML code generators
  """
  
  
  class Filters(object):
      """provides a set of filters to be used with the template engine"""
      classPrefix = ''
  
      @staticmethod
      def className(symbol):
          classPrefix = Filters.classPrefix
          return '{0}{1}'.format(classPrefix, symbol.name)
  
      @staticmethod
      def defaultValue(symbol):
          t = symbol.type
          if t.is_primitive:
              if t.name == 'int':
                  return '0'
              if t.name == 'bool':
                  return 'false'
              if t.name == 'string':
                  return ''
          elif t.is_enum:
              name = t.reference.name
              value = next(iter(t.reference.members))
              return '{0}.{1}'.format(name, value)
          return 'XXX'
  
      @staticmethod
      def propertyType(symbol):
          return symbol
          classPrefix = Filters.classPrefix
          module_name = symbol.module.module_name
          if symbol.type.is_enum:
              return '{0}{1}Module.{2} {3}'.format(classPrefix, module_name, symbol.type, symbol)
          if symbol.type.is_void or symbol.type.is_primitive:
              if symbol.type.name == 'string':
                  return 'string {0}'.format(symbol)
              if symbol.type.name == 'var':
                  return 'var {0}'.format(symbol)
              if symbol.type.name == 'real':
                  return 'real {0}'.format(symbol)
              return '{0} {1}'.format(symbol.type, symbol)
          elif symbol.type.is_list:
              return 'ListModel {1}'.format(symbol.type.nested, symbol)
          elif symbol.type.is_model:
              return '{0}Model {1}'.format(symbol.type.nested, symbol)
          else:
              return '{0}{1} {2}'.format(classPrefix, symbol.type, symbol)
  
  
new_contents: """
  Provides helper functionality specificially for Qt5 QML code generators
  """
  
  
  class Filters(object):
      """provides a set of filters to be used with the template engine"""
      classPrefix = ''
  
      @staticmethod
      def className(symbol):
          classPrefix = Filters.classPrefix
          return '{0}{1}'.format(classPrefix, symbol.name)
  
      @staticmethod
      def defaultValue(symbol):
          t = symbol.type
          if t.is_primitive:
              if t.name == 'int':
                  return '0'
              if t.name == 'bool':
                  return 'false'
              if t.name == 'string':
                  return "''"
          elif t.is_enum:
              name = t.reference.name
              value = next(iter(t.reference.members))
              return '{0}.{1}'.format(name, value)
          return 'XXX'
  
      @staticmethod
      def propertyType(symbol):
          return symbol
          classPrefix = Filters.classPrefix
          module_name = symbol.module.module_name
          if symbol.type.is_enum:
              return '{0}{1}Module.{2} {3}'.format(classPrefix, module_name, symbol.type, symbol)
          if symbol.type.is_void or symbol.type.is_primitive:
              if symbol.type.name == 'string':
                  return 'string {0}'.format(symbol)
              if symbol.type.name == 'var':
                  return 'var {0}'.format(symbol)
              if symbol.type.name == 'real':
                  return 'real {0}'.format(symbol)
              return '{0} {1}'.format(symbol.type, symbol)
          elif symbol.type.is_list:
              return 'ListModel {1}'.format(symbol.type.nested, symbol)
          elif symbol.type.is_model:
              return '{0}Model {1}'.format(symbol.type.nested, symbol)
          else:
              return '{0}{1} {2}'.format(classPrefix, symbol.type, symbol)
  
  
subject: Return proper empty string as default value