44         current_(nullptr),  in MergingIterator()
56     current_ = CurrentForward();  in MergingIterator()
74       current_ = CurrentForward();  in AddIterator()
84   bool Valid() const override { return current_ != nullptr && status_.ok(); }  in Valid()
96     current_ = CurrentForward();  in SeekToFirst()
108     current_ = CurrentReverse();  in SeekToLast()
131       current_ = CurrentForward();  in Seek()
155       current_ = CurrentReverse();  in SeekForPrev()
174     assert(current_ == CurrentForward());  in Next()
177     current_->Next();  in Next()
178     if (current_->Valid()) {  in Next()
182       assert(current_->status().ok());  in Next()
183       minHeap_.replace_top(current_);  in Next()
186       considerStatus(current_->status());  in Next()
189     current_ = CurrentForward();  in Next()
216     assert(current_ == CurrentReverse());  in Prev()
218     current_->Prev();  in Prev()
219     if (current_->Valid()) {  in Prev()
223       assert(current_->status().ok());  in Prev()
224       maxHeap_->replace_top(current_);  in Prev()
227       considerStatus(current_->status());  in Prev()
230     current_ = CurrentReverse();  in Prev()
235     return current_->key();  in key()
240     return current_->value();  in value()
249     return current_->MayBeOutOfLowerBound();  in MayBeOutOfLowerBound()
254     return current_->MayBeOutOfUpperBound();  in MayBeOutOfUpperBound()
267            current_->IsKeyPinned();  in IsKeyPinned()
273            current_->IsValuePinned();  in IsValuePinned()
290   IteratorWrapper* current_;  member in ROCKSDB_NAMESPACE::MergingIterator
357     if (&child != current_) {  in SwitchToForward()
374     if (&child != current_) {  in SwitchToBackward()
390     current_ = CurrentReverse();  in SwitchToBackward()
392   assert(current_ == CurrentReverse());  in SwitchToBackward()