text: #include "yson2json_adapter.h"
  
  namespace NYT {
      TYson2JsonCallbacksAdapter::TYson2JsonCallbacksAdapter(NYT::TYsonConsumerBase* impl, bool throwException)
          : NJson::TJsonCallbacks(throwException)
          , Impl_(impl)
      {
      }
  
      bool TYson2JsonCallbacksAdapter::OnNull() {
          WrapIfListItem();
          Impl_->OnEntity();
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnBoolean(bool val) {
          WrapIfListItem();
          Impl_->OnBooleanScalar(val);
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnInteger(long long val) {
          WrapIfListItem();
          Impl_->OnInt64Scalar(val);
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnUInteger(unsigned long long val) {
          WrapIfListItem();
          Impl_->OnUint64Scalar(val);
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnString(const TStringBuf& val) {
          WrapIfListItem();
          Impl_->OnStringScalar(val);
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnDouble(double val) {
          WrapIfListItem();
          Impl_->OnDoubleScalar(val);
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnOpenArray() {
          WrapIfListItem();
          State_.ContextStack.push(true);
          Impl_->OnBeginList();
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnCloseArray() {
          State_.ContextStack.pop();
          Impl_->OnEndList();
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnOpenMap() {
          WrapIfListItem();
          State_.ContextStack.push(false);
          Impl_->OnBeginMap();
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnCloseMap() {
          State_.ContextStack.pop();
          Impl_->OnEndMap();
          return true;
      }
  
      bool TYson2JsonCallbacksAdapter::OnMapKey(const TStringBuf& val) {
          Impl_->OnKeyedItem(val);
          return true;
      }
  
      void TYson2JsonCallbacksAdapter::WrapIfListItem() {
          if (!State_.ContextStack.empty() && State_.ContextStack.top()) {
              Impl_->OnListItem();
          }
      }
  }
  