text: #ifndef NODE_NODEBUILDER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
  #define NODE_NODEBUILDER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
  
  #if defined(_MSC_VER) ||                                            \
      (defined(__GNUC__) && (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || \
       (__GNUC__ >= 4))  // GCC supports "pragma once" correctly since 3.4
  #pragma once
  #endif
  
  #include <vector>
  
  #include "yaml-cpp/anchor.h"
  #include "yaml-cpp/emitterstyle.h"
  #include "yaml-cpp/eventhandler.h"
  #include "yaml-cpp/node/ptr.h"
  
  namespace YAML {
  namespace detail {
  class node;
  }  // namespace detail
  struct Mark;
  }  // namespace YAML
  
  namespace YAML {
  class Node;
  
  class NodeBuilder : public EventHandler {
   public:
    NodeBuilder();
    NodeBuilder(const NodeBuilder&) = delete;
    NodeBuilder(NodeBuilder&&) = delete;
    NodeBuilder& operator=(const NodeBuilder&) = delete;
    NodeBuilder& operator=(NodeBuilder&&) = delete;
    ~NodeBuilder() override;
  
    Node Root();
  
    void OnDocumentStart(const Mark& mark) override;
    void OnDocumentEnd() override;
  
    void OnNull(const Mark& mark, anchor_t anchor) override;
    void OnAlias(const Mark& mark, anchor_t anchor) override;
    void OnScalar(const Mark& mark, const std::string& tag, anchor_t anchor,
                  const std::string& value) override;
  
    void OnSequenceStart(const Mark& mark, const std::string& tag,
                         anchor_t anchor, EmitterStyle::value style) override;
    void OnSequenceEnd() override;
  
    void OnMapStart(const Mark& mark, const std::string& tag, anchor_t anchor,
                    EmitterStyle::value style) override;
    void OnMapEnd() override;
  
   private:
    detail::node& Push(const Mark& mark, anchor_t anchor);
    void Push(detail::node& node);
    void Pop();
    void RegisterAnchor(anchor_t anchor, detail::node& node);
  
   private:
    detail::shared_memory_holder m_pMemory;
    detail::node* m_pRoot;
  
    using Nodes = std::vector<detail::node*>;
    Nodes m_stack;
    Nodes m_anchors;
  
    using PushedKey = std::pair<detail::node*, bool>;
    std::vector<PushedKey> m_keys;
    std::size_t m_mapDepth;
  };
  }  // namespace YAML
  
  #endif  // NODE_NODEBUILDER_H_62B23520_7C8E_11DE_8A39_0800200C9A66
  