func doMap(_data)
  fvar(s)
  
  s = 'map(self.'+ code(MapFunc) +', ' + Seq + ')'
  if (linked(Result))
    println(res, ' = ', s)
    event(onMap, res)    
  else
    event(onMap, s)
  end
  
end

func Result(_data)
  if (linked(doMap))
    return (res)
  else
    return ('map(self.'+ code(MapFunc) +', ' + Seq + ')')
  end
end