anchor.diff:  
   	_Else ->
   	    throw(#invalidOperation{what=Op, why="Invalid operation"})
  -
       end.
   
   getStruct(Key) ->
  
positive.code: -module(server).
  
  -include("thrift.hrl").
  -include("thrift_logger.hrl").
  -include("transport/tSocket.hrl").
  -include("protocol/tBinaryProtocol.hrl").
  
  
negative.code:     start(9090).
  
  start(Port) ->
      thrift:start(),
  
      Handler   = ?MODULE,
      Processor = calculator_thrift,
  