1// Copyright 2016 PDFium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7#include "core/fpdfapi/parser/cpdf_null.h" 8#include "core/fxcrt/fx_stream.h" 9#include "third_party/base/ptr_util.h" 10 11CPDF_Null::CPDF_Null() {} 12 13CPDF_Object::Type CPDF_Null::GetType() const { 14 return NULLOBJ; 15} 16 17std::unique_ptr<CPDF_Object> CPDF_Null::Clone() const { 18 return pdfium::MakeUnique<CPDF_Null>(); 19} 20 21bool CPDF_Null::WriteTo(IFX_ArchiveStream* archive) const { 22 return archive->WriteString(" null"); 23} 24 25bool CPDF_Null::IsNull() const { 26 return true; 27} 28