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

core/fpdfapi/fpdf_parser/cpdf_object.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_FPDF_PARSER_CPDF_OBJECT_H_
-#define CORE_FPDFAPI_FPDF_PARSER_CPDF_OBJECT_H_
-
-#include <memory>
-#include <set>
-
-#include "core/fxcrt/fx_string.h"
-#include "core/fxcrt/fx_system.h"
-
-class CPDF_Array;
-class CPDF_Boolean;
-class CPDF_Dictionary;
-class CPDF_Name;
-class CPDF_Null;
-class CPDF_Number;
-class CPDF_Reference;
-class CPDF_Stream;
-class CPDF_String;
-
-class CPDF_Object {
- public:
-  static const uint32_t kInvalidObjNum = static_cast<uint32_t>(-1);
-  enum Type {
-    BOOLEAN = 1,
-    NUMBER,
-    STRING,
-    NAME,
-    ARRAY,
-    DICTIONARY,
-    STREAM,
-    NULLOBJ,
-    REFERENCE
-  };
-
-  virtual Type GetType() const = 0;
-  uint32_t GetObjNum() const { return m_ObjNum; }
-  uint32_t GetGenNum() const { return m_GenNum; }
-
-  // Create a deep copy of the object.
-  virtual CPDF_Object* Clone() const = 0;
-  // Create a deep copy of the object except any reference object be
-  // copied to the object it points to directly.
-  virtual CPDF_Object* CloneDirectObject() const;
-  virtual CPDF_Object* GetDirect() const;
-
-  void Release();
-
-  virtual CFX_ByteString GetString() const;
-  virtual CFX_WideString GetUnicodeText() const;
-  virtual FX_FLOAT GetNumber() const;
-  virtual int GetInteger() const;
-  virtual CPDF_Dictionary* GetDict() const;
-
-  virtual void SetString(const CFX_ByteString& str);
-
-  virtual bool IsArray() const;
-  virtual bool IsBoolean() const;
-  virtual bool IsDictionary() const;
-  virtual bool IsName() const;
-  virtual bool IsNumber() const;
-  virtual bool IsReference() const;
-  virtual bool IsStream() const;
-  virtual bool IsString() const;
-
-  virtual CPDF_Array* AsArray();
-  virtual const CPDF_Array* AsArray() const;
-  virtual CPDF_Boolean* AsBoolean();
-  virtual const CPDF_Boolean* AsBoolean() const;
-  virtual CPDF_Dictionary* AsDictionary();
-  virtual const CPDF_Dictionary* AsDictionary() const;
-  virtual CPDF_Name* AsName();
-  virtual const CPDF_Name* AsName() const;
-  virtual CPDF_Number* AsNumber();
-  virtual const CPDF_Number* AsNumber() const;
-  virtual CPDF_Reference* AsReference();
-  virtual const CPDF_Reference* AsReference() const;
-  virtual CPDF_Stream* AsStream();
-  virtual const CPDF_Stream* AsStream() const;
-  virtual CPDF_String* AsString();
-  virtual const CPDF_String* AsString() const;
-
- protected:
-  friend class CPDF_Array;
-  friend class CPDF_Dictionary;
-  friend class CPDF_Document;
-  friend class CPDF_IndirectObjectHolder;
-  friend class CPDF_Parser;
-  friend class CPDF_Reference;
-  friend class CPDF_Stream;
-  friend struct std::default_delete<CPDF_Object>;
-
-  CPDF_Object() : m_ObjNum(0), m_GenNum(0) {}
-  virtual ~CPDF_Object();
-
-  CPDF_Object* CloneObjectNonCyclic(bool bDirect) const;
-
-  // Create a deep copy of the object with the option to either
-  // copy a reference object or directly copy the object it refers to
-  // when |bDirect| is true.
-  // Also check cyclic reference against |pVisited|, no copy if it is found.
-  // Complex objects should implement their own CloneNonCyclic()
-  // function to properly check for possible loop.
-  virtual CPDF_Object* CloneNonCyclic(
-      bool bDirect,
-      std::set<const CPDF_Object*>* pVisited) const;
-
-  uint32_t m_ObjNum;
-  uint32_t m_GenNum;
-
- private:
-  CPDF_Object(const CPDF_Object& src) {}
-};
-
-inline CPDF_Boolean* ToBoolean(CPDF_Object* obj) {
-  return obj ? obj->AsBoolean() : nullptr;
-}
-
-inline const CPDF_Boolean* ToBoolean(const CPDF_Object* obj) {
-  return obj ? obj->AsBoolean() : nullptr;
-}
-
-inline CPDF_Number* ToNumber(CPDF_Object* obj) {
-  return obj ? obj->AsNumber() : nullptr;
-}
-
-inline const CPDF_Number* ToNumber(const CPDF_Object* obj) {
-  return obj ? obj->AsNumber() : nullptr;
-}
-
-inline CPDF_String* ToString(CPDF_Object* obj) {
-  return obj ? obj->AsString() : nullptr;
-}
-
-inline const CPDF_String* ToString(const CPDF_Object* obj) {
-  return obj ? obj->AsString() : nullptr;
-}
-
-inline CPDF_Name* ToName(CPDF_Object* obj) {
-  return obj ? obj->AsName() : nullptr;
-}
-
-inline const CPDF_Name* ToName(const CPDF_Object* obj) {
-  return obj ? obj->AsName() : nullptr;
-}
-
-inline CPDF_Array* ToArray(CPDF_Object* obj) {
-  return obj ? obj->AsArray() : nullptr;
-}
-
-inline const CPDF_Array* ToArray(const CPDF_Object* obj) {
-  return obj ? obj->AsArray() : nullptr;
-}
-
-inline CPDF_Dictionary* ToDictionary(CPDF_Object* obj) {
-  return obj ? obj->AsDictionary() : nullptr;
-}
-
-inline const CPDF_Dictionary* ToDictionary(const CPDF_Object* obj) {
-  return obj ? obj->AsDictionary() : nullptr;
-}
-inline CPDF_Reference* ToReference(CPDF_Object* obj) {
-  return obj ? obj->AsReference() : nullptr;
-}
-
-inline const CPDF_Reference* ToReference(const CPDF_Object* obj) {
-  return obj ? obj->AsReference() : nullptr;
-}
-
-inline CPDF_Stream* ToStream(CPDF_Object* obj) {
-  return obj ? obj->AsStream() : nullptr;
-}
-
-inline const CPDF_Stream* ToStream(const CPDF_Object* obj) {
-  return obj ? obj->AsStream() : nullptr;
-}
-
-#endif  // CORE_FPDFAPI_FPDF_PARSER_CPDF_OBJECT_H_