Move core/fpdfapi/fpdf_parser to core/fpdfapi/parser

core/fpdfapi/fpdf_parser/cpdf_indirect_object_holder.cpp

-// 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
-
-#include "core/fpdfapi/fpdf_parser/cpdf_indirect_object_holder.h"
-
-#include "core/fpdfapi/fpdf_parser/cpdf_object.h"
-#include "core/fpdfapi/fpdf_parser/cpdf_parser.h"
-
-CPDF_IndirectObjectHolder::CPDF_IndirectObjectHolder() : m_LastObjNum(0) {}
-
-CPDF_IndirectObjectHolder::~CPDF_IndirectObjectHolder() {}
-
-CPDF_Object* CPDF_IndirectObjectHolder::GetIndirectObject(
-    uint32_t objnum) const {
-  auto it = m_IndirectObjs.find(objnum);
-  return it != m_IndirectObjs.end() ? it->second.get() : nullptr;
-}
-
-CPDF_Object* CPDF_IndirectObjectHolder::GetOrParseIndirectObject(
-    uint32_t objnum) {
-  if (objnum == 0)
-    return nullptr;
-
-  CPDF_Object* pObj = GetIndirectObject(objnum);
-  if (pObj)
-    return pObj->GetObjNum() != CPDF_Object::kInvalidObjNum ? pObj : nullptr;
-
-  pObj = ParseIndirectObject(objnum);
-  if (!pObj)
-    return nullptr;
-
-  pObj->m_ObjNum = objnum;
-  m_LastObjNum = std::max(m_LastObjNum, objnum);
-  m_IndirectObjs[objnum].reset(pObj);
-  return pObj;
-}
-
-CPDF_Object* CPDF_IndirectObjectHolder::ParseIndirectObject(uint32_t objnum) {
-  return nullptr;
-}
-
-uint32_t CPDF_IndirectObjectHolder::AddIndirectObject(CPDF_Object* pObj) {
-  if (pObj->m_ObjNum)
-    return pObj->m_ObjNum;
-
-  m_LastObjNum++;
-  m_IndirectObjs[m_LastObjNum].release();  // TODO(tsepez): stop this leak.
-  m_IndirectObjs[m_LastObjNum].reset(pObj);
-  pObj->m_ObjNum = m_LastObjNum;
-  return m_LastObjNum;
-}
-
-bool CPDF_IndirectObjectHolder::ReplaceIndirectObjectIfHigherGeneration(
-    uint32_t objnum,
-    CPDF_Object* pObj) {
-  if (!objnum || !pObj)
-    return false;
-
-  CPDF_Object* pOldObj = GetIndirectObject(objnum);
-  if (pOldObj && pObj->GetGenNum() <= pOldObj->GetGenNum()) {
-    delete pObj;
-    return false;
-  }
-  pObj->m_ObjNum = objnum;
-  m_IndirectObjs[objnum].reset(pObj);
-  m_LastObjNum = std::max(m_LastObjNum, objnum);
-  return true;
-}
-
-void CPDF_IndirectObjectHolder::ReleaseIndirectObject(uint32_t objnum) {
-  CPDF_Object* pObj = GetIndirectObject(objnum);
-  if (!pObj || pObj->GetObjNum() == CPDF_Object::kInvalidObjNum)
-    return;
-
-  m_IndirectObjs.erase(objnum);
-}