// Copyright (c) 1994 James Clark

// See the file COPYING for copying permission.

#ifndef LpdEntityRef_INCLUDED

#define LpdEntityRef_INCLUDED 1

#include "Entity.h"

#include "Boolean.h"

#include "Ptr.h"

// Information about a reference to an entity that

// used a definition in an LPD.

#ifdef SP_NAMESPACE

namespace SP_NAMESPACE {

#endif

struct LpdEntityRef {

  ConstPtr<Entity> entity;

  PackedBoolean lookedAtDefault;

  PackedBoolean foundInPass1Dtd;

  static inline const LpdEntityRef &key(const LpdEntityRef &r) { return r; }

  static inline unsigned long hash(const LpdEntityRef &r) {

    return Hash::hash(r.entity->name());

  }

};

inline

Boolean operator==(const LpdEntityRef &r1, const LpdEntityRef &r2)

{

  return (r1.entity == r2.entity

	  && r1.foundInPass1Dtd == r2.foundInPass1Dtd

	  && r1.lookedAtDefault == r2.lookedAtDefault);

}

inline

Boolean operator!=(const LpdEntityRef &r1, const LpdEntityRef &r2)

{

  return !(r1 == r2);

}

#ifdef SP_NAMESPACE

}

#endif

#endif /* not LpdEntityRef_INCLUDED */