original_string: protected function _resetTracker($tracker)
      {
          if (!($tracker instanceof Iterator)) {
              throw $this->_createInvalidArgumentException($this->__('Can only reset an Iterator tracker'), null, null, $tracker);
          }
  
          $tracker->rewind();
      }
code: protected function _resetTracker($tracker)
      {
          if (!($tracker instanceof Iterator)) {
              throw $this->_createInvalidArgumentException($this->__('Can only reset an Iterator tracker'), null, null, $tracker);
          }
  
          $tracker->rewind();
      }
code_tokens: protected function _resetTracker ( $ tracker ) { if ( ! ( $ tracker instanceof Iterator ) ) { throw $ this -> _createInvalidArgumentException ( $ this -> __ ( 'Can only reset an Iterator tracker' ) , null , null , $ tracker ) ; } $ tracker -> rewind ( ) ; }
docstring: Reset the iterator back to the start.
  
  @param Iterator $tracker The iterator used to track the loop.
  
  @throws InvalidArgumentException If problem resetting tracker.
docstring_tokens: Reset the iterator back to the start .