       return
 
     unless @topOperation().isComplete()
-      if @mode is 'command' and @topOperation() instanceof operators.Operator
+      if @mode is 'command' and @topOperation() instanceof Operators.Operator
         @activateOperatorPendingMode()
       return
 

        @topOperation().compose(poppedOperation)
        @processOpStack()
      catch e
        (e instanceof operators.OperatorError) and @resetCommandMode() or throw e
    else
      @history.unshift(poppedOperation) if poppedOperation.isRecordable()
      poppedOperation.execute()

        e.abortKeyBinding()
        false
      else
        new Prefixes.Repeat(num)

  # Private: Figure out whether or not we are in a repeat sequence or we just
  # want to move to the beginning of the line. If we are within a repeat
