121     protected $_depth         = -1;  variable in Hoa\\Compiler\\Llk\\Parser
259                 $rule->setDepth($this->_depth);
263                     --$this->_depth;
304                             if ($trace->getDepth() <= $this->_depth) {
312                         $skip += $trace->getDepth() > $this->_depth;
358                 ++$this->_depth;
365                 $this->_depth
384                 ++$this->_depth;
391                 $this->_depth
406                     ++$this->_depth;
413                     $this->_depth
483         $this->_depth  = $last->getDepth();