core/fpdfapi/parser/cpdf_null.h

// 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_PARSER_CPDF_NULL_H_
#define CORE_FPDFAPI_PARSER_CPDF_NULL_H_

#include <memory>

#include "core/fpdfapi/parser/cpdf_object.h"

class CPDF_Null final : public CPDF_Object {
 public:
  template <typename T, typename... Args>
  friend RetainPtr<T> pdfium::MakeRetain(Args&&... args);

  // CPDF_Object.
  Type GetType() const override;
  RetainPtr<CPDF_Object> Clone() const override;
  bool WriteTo(IFX_ArchiveStream* archive,
               const CPDF_Encryptor* encryptor) const override;
  bool IsNull() const override;

 private:
  CPDF_Null();
};

#endif  // CORE_FPDFAPI_PARSER_CPDF_NULL_H_