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2024-12-13 1bb61da9f048f9f86b412479e3f4d18adb1876f2

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// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
#ifndef CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_
#define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_
 
#include <map>
 
#include "core/fxcrt/include/fx_system.h"
 
class CPDF_Object;
class CPDF_Parser;
 
class CPDF_IndirectObjectHolder {
 public:
  using iterator = std::map<uint32_t, CPDF_Object*>::iterator;
  using const_iterator = std::map<uint32_t, CPDF_Object*>::const_iterator;
 
  explicit CPDF_IndirectObjectHolder(CPDF_Parser* pParser);
  ~CPDF_IndirectObjectHolder();
 
  CPDF_Object* GetIndirectObject(uint32_t objnum);
  uint32_t AddIndirectObject(CPDF_Object* pObj);
  void ReleaseIndirectObject(uint32_t objnum);
 
  // Takes ownership of |pObj|.
  bool InsertIndirectObject(uint32_t objnum, CPDF_Object* pObj);
 
  uint32_t GetLastObjNum() const { return m_LastObjNum; }
  iterator begin() { return m_IndirectObjs.begin(); }
  const_iterator begin() const { return m_IndirectObjs.begin(); }
  iterator end() { return m_IndirectObjs.end(); }
  const_iterator end() const { return m_IndirectObjs.end(); }
 
 protected:
  CPDF_Parser* m_pParser;
  uint32_t m_LastObjNum;
  std::map<uint32_t, CPDF_Object*> m_IndirectObjs;
};
 
#endif  // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_INDIRECT_OBJECT_HOLDER_H_