23         current_(0) {  in VectorIterator()
34     return !indices_.empty() && current_ < indices_.size();  in Valid()
37   virtual void SeekToFirst() override { current_ = 0; }  in SeekToFirst()
38   virtual void SeekToLast() override { current_ = indices_.size() - 1; }  in SeekToLast()
41     current_ = std::lower_bound(indices_.begin(), indices_.end(), target,  in Seek()
47     current_ = std::lower_bound(indices_.begin(), indices_.end(), target,  in SeekForPrev()
57   virtual void Next() override { current_++; }  in Next()
58   virtual void Prev() override { current_--; }  in Prev()
61     return Slice(keys_[indices_[current_]]);  in key()
64     return Slice(values_[indices_[current_]]);  in value()
98   size_t current_;  variable