25   if (block_iter_points_to_real_block_ && block_iter_.Valid()) {  in SeekImpl()
54     if (!index_iter_->Valid()) {  in SeekImpl()
99     assert(!Valid() || icomp_.Compare(*target, key()) <= 0);  in SeekImpl()
130   if (!index_iter_->Valid()) {  in SeekForPrev()
147     if (!index_iter_->Valid()) {  in SeekForPrev()
159   assert(!block_iter_.Valid() ||  in SeekForPrev()
168   if (!index_iter_->Valid()) {  in SeekToLast()
190   bool is_valid = Valid();  in NextAndGetResult()
203     if (!index_iter_->Valid()) {  in Prev()
253   assert(index_iter_->Valid());  in MaterializeCurrentBlock()
260   if (!block_iter_.Valid() ||  in MaterializeCurrentBlock()
278   if (!block_iter_.Valid()) {  in FindKeyForward()
312       if (index_iter_->Valid()) {  in FindBlockForward()
318     if (!index_iter_->Valid()) {  in FindBlockForward()
334   } while (!block_iter_.Valid());  in FindBlockForward()
338   while (!block_iter_.Valid()) {  in FindKeyBackward()
346     if (index_iter_->Valid()) {  in FindKeyBackward()
359   if (read_options_.iterate_upper_bound != nullptr && Valid()) {  in CheckOutOfBound()