26   IteratorWrapperBase() : iter_(nullptr), valid_(false) {}  in IteratorWrapperBase()
28       : iter_(nullptr) {  in IteratorWrapperBase()
32   InternalIteratorBase<TValue>* iter() const { return iter_; }  in iter()
37     InternalIteratorBase<TValue>* old_iter = iter_;  in Set()
39     iter_ = _iter;  in Set()
40     if (iter_ == nullptr) {  in Set()
49     if (iter_) {  in DeleteIter()
51         delete iter_;  in DeleteIter()  local
53         iter_->~InternalIteratorBase<TValue>();  in DeleteIter()
66     return iter_->value();  in value()
70     assert(iter_);  in status()
71     return iter_->status();  in status()
74     assert(iter_);  in Next()
75     valid_ = iter_->NextAndGetResult(&result_);  in Next()
76     assert(!valid_ || iter_->status().ok());  in Next()
79     assert(iter_);  in Prev()
80     iter_->Prev();  in Prev()
84     assert(iter_);  in Seek()
85     iter_->Seek(k);  in Seek()
89     assert(iter_);  in SeekForPrev()
90     iter_->SeekForPrev(k);  in SeekForPrev()
94     assert(iter_);  in SeekToFirst()
95     iter_->SeekToFirst();  in SeekToFirst()
99     assert(iter_);  in SeekToLast()
100     iter_->SeekToLast();  in SeekToLast()
106     return iter_->MayBeOutOfLowerBound();  in MayBeOutOfLowerBound()
115     assert(iter_);  in SetPinnedItersMgr()
116     iter_->SetPinnedItersMgr(pinned_iters_mgr);  in SetPinnedItersMgr()
120     return iter_->IsKeyPinned();  in IsKeyPinned()
124     return iter_->IsValuePinned();  in IsValuePinned()
129     valid_ = iter_->Valid();  in Update()
131       assert(iter_->status().ok());  in Update()
132       result_.key = iter_->key();  in Update()
137   InternalIteratorBase<TValue>* iter_;  variable