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 | #ifndef NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
#define NODE_NODEEVENTS_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 <map>
#include <vector>
#include "yaml-cpp/anchor.h"
#include "yaml-cpp/node/ptr.h"
namespace YAML {
namespace detail {
class node;
}  // namespace detail
}  // namespace YAML
namespace YAML {
class EventHandler;
class Node;
class NodeEvents {
 public:
  explicit NodeEvents(const Node& node);
  void Emit(EventHandler& handler);
 private:
  class AliasManager {
   public:
    AliasManager() : m_curAnchor(0) {}
    void RegisterReference(const detail::node& node);
    anchor_t LookupAnchor(const detail::node& node) const;
   private:
    anchor_t _CreateNewAnchor() { return ++m_curAnchor; }
   private:
    typedef std::map<const detail::node_ref*, anchor_t> AnchorByIdentity;
    AnchorByIdentity m_anchorByIdentity;
    anchor_t m_curAnchor;
  };
  void Setup(const detail::node& node);
  void Emit(const detail::node& node, EventHandler& handler,
            AliasManager& am) const;
  bool IsAliased(const detail::node& node) const;
 private:
  detail::shared_memory_holder m_pMemory;
  detail::node* m_root;
  typedef std::map<const detail::node_ref*, int> RefCount;
  RefCount m_refCount;
};
}
#endif  // NODE_NODEEVENTS_H_62B23520_7C8E_11DE_8A39_0800200C9A66
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