Move xfa_basic_imp to cxfa_widetextread.

This Cl splits out the CXFA_WideTextRead class into it's own file. The helper
methods have been moved into xfa_utils.cpp and their pre-declarations into
xfa_utils.h.

Review-Url: https://codereview.chromium.org/2165993002

1 files changed, 0 insertions, 588 deletions

diff --git a/xfa/fxfa/parser/xfa_basic_imp.cpp b/xfa/fxfa/parser/xfa_basic_imp.cpp
deleted file mode 100644
index 46328607dc..0000000000
--- a/xfa/fxfa/parser/xfa_basic_imp.cpp
+++ /dev/null
@@ -1,588 +0,0 @@
-// Copyright 2014 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 "xfa/fxfa/parser/xfa_basic_imp.h"
-
-#include "core/fxcrt/include/fx_ext.h"
-#include "xfa/fgas/crt/fgas_codepage.h"
-#include "xfa/fgas/crt/fgas_system.h"
-#include "xfa/fxfa/parser/xfa_basic_data.h"
-#include "xfa/fxfa/parser/xfa_doclayout.h"
-#include "xfa/fxfa/parser/xfa_document.h"
-#include "xfa/fxfa/parser/xfa_localemgr.h"
-#include "xfa/fxfa/parser/xfa_object.h"
-#include "xfa/fxfa/parser/xfa_utils.h"
-
-const XFA_PACKETINFO* XFA_GetPacketByName(const CFX_WideStringC& wsName) {
-  if (wsName.IsEmpty())
-    return nullptr;
-
-  uint32_t uHash = FX_HashCode_GetW(wsName, false);
-  int32_t iStart = 0;
-  int32_t iEnd = g_iXFAPacketCount - 1;
-  do {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const XFA_PACKETINFO* pInfo = g_XFAPacketData + iMid;
-    if (uHash == pInfo->uHash) {
-      return pInfo;
-    } else if (uHash < pInfo->uHash) {
-      iEnd = iMid - 1;
-    } else {
-      iStart = iMid + 1;
-    }
-  } while (iStart <= iEnd);
-  return nullptr;
-}
-
-const XFA_PACKETINFO* XFA_GetPacketByID(uint32_t dwPacket) {
-  int32_t iStart = 0, iEnd = g_iXFAPacketCount - 1;
-  do {
-    int32_t iMid = (iStart + iEnd) / 2;
-    uint32_t dwFind = (g_XFAPacketData + iMid)->eName;
-    if (dwPacket == dwFind) {
-      return g_XFAPacketData + iMid;
-    } else if (dwPacket < dwFind) {
-      iEnd = iMid - 1;
-    } else {
-      iStart = iMid + 1;
-    }
-  } while (iStart <= iEnd);
-  return nullptr;
-}
-
-const XFA_PACKETINFO* XFA_GetPacketByIndex(XFA_PACKET ePacket) {
-  return g_XFAPacketData + ePacket;
-}
-
-const XFA_ATTRIBUTEENUMINFO* XFA_GetAttributeEnumByName(
-    const CFX_WideStringC& wsName) {
-  if (wsName.IsEmpty())
-    return nullptr;
-
-  uint32_t uHash = FX_HashCode_GetW(wsName, false);
-  int32_t iStart = 0;
-  int32_t iEnd = g_iXFAEnumCount - 1;
-  do {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const XFA_ATTRIBUTEENUMINFO* pInfo = g_XFAEnumData + iMid;
-    if (uHash == pInfo->uHash) {
-      return pInfo;
-    } else if (uHash < pInfo->uHash) {
-      iEnd = iMid - 1;
-    } else {
-      iStart = iMid + 1;
-    }
-  } while (iStart <= iEnd);
-  return nullptr;
-}
-const XFA_ATTRIBUTEENUMINFO* XFA_GetAttributeEnumByID(XFA_ATTRIBUTEENUM eName) {
-  return g_XFAEnumData + eName;
-}
-
-const XFA_ATTRIBUTEINFO* XFA_GetAttributeByName(const CFX_WideStringC& wsName) {
-  if (wsName.IsEmpty())
-    return nullptr;
-
-  uint32_t uHash = FX_HashCode_GetW(wsName, false);
-  int32_t iStart = 0;
-  int32_t iEnd = g_iXFAAttributeCount - 1;
-  do {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const XFA_ATTRIBUTEINFO* pInfo = g_XFAAttributeData + iMid;
-    if (uHash == pInfo->uHash) {
-      return pInfo;
-    } else if (uHash < pInfo->uHash) {
-      iEnd = iMid - 1;
-    } else {
-      iStart = iMid + 1;
-    }
-  } while (iStart <= iEnd);
-  return nullptr;
-}
-const XFA_ATTRIBUTEINFO* XFA_GetAttributeByID(XFA_ATTRIBUTE eName) {
-  return (eName < g_iXFAAttributeCount) ? (g_XFAAttributeData + eName)
-                                        : nullptr;
-}
-FX_BOOL XFA_GetAttributeDefaultValue(void*& pValue,
-                                     XFA_Element eElement,
-                                     XFA_ATTRIBUTE eAttribute,
-                                     XFA_ATTRIBUTETYPE eType,
-                                     uint32_t dwPacket) {
-  const XFA_ATTRIBUTEINFO* pInfo = XFA_GetAttributeByID(eAttribute);
-  if (!pInfo) {
-    return FALSE;
-  }
-  if (dwPacket && (dwPacket & pInfo->dwPackets) == 0) {
-    return FALSE;
-  }
-  if (pInfo->eType == eType) {
-    pValue = pInfo->pDefValue;
-    return TRUE;
-  } else if (pInfo->eType == XFA_ATTRIBUTETYPE_NOTSURE) {
-    const XFA_NOTSUREATTRIBUTE* pAttr =
-        XFA_GetNotsureAttribute(eElement, eAttribute, eType);
-    if (pAttr) {
-      pValue = pAttr->pValue;
-      return TRUE;
-    }
-  }
-  return FALSE;
-}
-XFA_ATTRIBUTEENUM XFA_GetAttributeDefaultValue_Enum(XFA_Element eElement,
-                                                    XFA_ATTRIBUTE eAttribute,
-                                                    uint32_t dwPacket) {
-  void* pValue;
-  if (XFA_GetAttributeDefaultValue(pValue, eElement, eAttribute,
-                                   XFA_ATTRIBUTETYPE_Enum, dwPacket)) {
-    return (XFA_ATTRIBUTEENUM)(uintptr_t)pValue;
-  }
-  return XFA_ATTRIBUTEENUM_Unknown;
-}
-CFX_WideStringC XFA_GetAttributeDefaultValue_Cdata(XFA_Element eElement,
-                                                   XFA_ATTRIBUTE eAttribute,
-                                                   uint32_t dwPacket) {
-  void* pValue;
-  if (XFA_GetAttributeDefaultValue(pValue, eElement, eAttribute,
-                                   XFA_ATTRIBUTETYPE_Cdata, dwPacket)) {
-    return (const FX_WCHAR*)pValue;
-  }
-  return nullptr;
-}
-FX_BOOL XFA_GetAttributeDefaultValue_Boolean(XFA_Element eElement,
-                                             XFA_ATTRIBUTE eAttribute,
-                                             uint32_t dwPacket) {
-  void* pValue;
-  if (XFA_GetAttributeDefaultValue(pValue, eElement, eAttribute,
-                                   XFA_ATTRIBUTETYPE_Boolean, dwPacket)) {
-    return (FX_BOOL)(uintptr_t)pValue;
-  }
-  return FALSE;
-}
-
-CXFA_Measurement XFA_GetAttributeDefaultValue_Measure(XFA_Element eElement,
-                                                      XFA_ATTRIBUTE eAttribute,
-                                                      uint32_t dwPacket) {
-  void* pValue;
-  if (XFA_GetAttributeDefaultValue(pValue, eElement, eAttribute,
-                                   XFA_ATTRIBUTETYPE_Measure, dwPacket)) {
-    return *(CXFA_Measurement*)pValue;
-  }
-  return CXFA_Measurement();
-}
-
-XFA_Element XFA_GetElementTypeForName(const CFX_WideStringC& wsName) {
-  if (wsName.IsEmpty())
-    return XFA_Element::Unknown;
-
-  uint32_t uHash = FX_HashCode_GetW(wsName, false);
-  const XFA_ELEMENTINFO* pEnd = g_XFAElementData + g_iXFAElementCount;
-  auto pInfo = std::lower_bound(g_XFAElementData, pEnd, uHash,
-                                [](const XFA_ELEMENTINFO& info, uint32_t hash) {
-                                  return info.uHash < hash;
-                                });
-  if (pInfo < pEnd && pInfo->uHash == uHash)
-    return pInfo->eName;
-  return XFA_Element::Unknown;
-}
-
-const XFA_ELEMENTINFO* XFA_GetElementByID(XFA_Element eName) {
-  return eName == XFA_Element::Unknown
-             ? nullptr
-             : g_XFAElementData + static_cast<int32_t>(eName);
-}
-
-const uint8_t* XFA_GetElementAttributes(XFA_Element eElement, int32_t& iCount) {
-  if (eElement == XFA_Element::Unknown)
-    return nullptr;
-
-  const XFA_ELEMENTHIERARCHY* pElement =
-      g_XFAElementAttributeIndex + static_cast<int32_t>(eElement);
-  iCount = pElement->wCount;
-  return g_XFAElementAttributeData + pElement->wStart;
-}
-
-const XFA_ATTRIBUTEINFO* XFA_GetAttributeOfElement(XFA_Element eElement,
-                                                   XFA_ATTRIBUTE eAttribute,
-                                                   uint32_t dwPacket) {
-  int32_t iCount = 0;
-  const uint8_t* pAttr = XFA_GetElementAttributes(eElement, iCount);
-  if (!pAttr || iCount < 1)
-    return nullptr;
-
-  if (!std::binary_search(pAttr, pAttr + iCount, eAttribute))
-    return nullptr;
-
-  const XFA_ATTRIBUTEINFO* pInfo = XFA_GetAttributeByID(eAttribute);
-  ASSERT(pInfo);
-  if (dwPacket == XFA_XDPPACKET_UNKNOWN)
-    return pInfo;
-  return (dwPacket & pInfo->dwPackets) ? pInfo : nullptr;
-}
-
-const XFA_PROPERTY* XFA_GetElementProperties(XFA_Element eElement,
-                                             int32_t& iCount) {
-  if (eElement == XFA_Element::Unknown)
-    return nullptr;
-
-  const XFA_ELEMENTHIERARCHY* pElement =
-      g_XFAElementPropertyIndex + static_cast<int32_t>(eElement);
-  iCount = pElement->wCount;
-  return g_XFAElementPropertyData + pElement->wStart;
-}
-
-const XFA_PROPERTY* XFA_GetPropertyOfElement(XFA_Element eElement,
-                                             XFA_Element eProperty,
-                                             uint32_t dwPacket) {
-  int32_t iCount = 0;
-  const XFA_PROPERTY* pProperties = XFA_GetElementProperties(eElement, iCount);
-  if (!pProperties || iCount < 1)
-    return nullptr;
-
-  auto it = std::find_if(pProperties, pProperties + iCount,
-                         [eProperty](const XFA_PROPERTY& prop) {
-                           return prop.eName == eProperty;
-                         });
-  if (it == pProperties + iCount)
-    return nullptr;
-
-  const XFA_ELEMENTINFO* pInfo = XFA_GetElementByID(eProperty);
-  ASSERT(pInfo);
-  if (dwPacket != XFA_XDPPACKET_UNKNOWN && !(dwPacket & pInfo->dwPackets))
-    return nullptr;
-  return it;
-}
-
-const XFA_NOTSUREATTRIBUTE* XFA_GetNotsureAttribute(XFA_Element eElement,
-                                                    XFA_ATTRIBUTE eAttribute,
-                                                    XFA_ATTRIBUTETYPE eType) {
-  int32_t iStart = 0, iEnd = g_iXFANotsureCount - 1;
-  do {
-    int32_t iMid = (iStart + iEnd) / 2;
-    const XFA_NOTSUREATTRIBUTE* pAttr = g_XFANotsureAttributes + iMid;
-    if (eElement == pAttr->eElement) {
-      if (pAttr->eAttribute == eAttribute) {
-        if (eType == XFA_ATTRIBUTETYPE_NOTSURE || eType == pAttr->eType) {
-          return pAttr;
-        }
-        return nullptr;
-      } else {
-        int32_t iBefore = iMid - 1;
-        if (iBefore >= 0) {
-          pAttr = g_XFANotsureAttributes + iBefore;
-          while (eElement == pAttr->eElement) {
-            if (pAttr->eAttribute == eAttribute) {
-              if (eType == XFA_ATTRIBUTETYPE_NOTSURE || eType == pAttr->eType) {
-                return pAttr;
-              }
-              return nullptr;
-            }
-            iBefore--;
-            if (iBefore < 0) {
-              break;
-            }
-            pAttr = g_XFANotsureAttributes + iBefore;
-          }
-        }
-        int32_t iAfter = iMid + 1;
-        if (iAfter <= g_iXFANotsureCount - 1) {
-          pAttr = g_XFANotsureAttributes + iAfter;
-          while (eElement == pAttr->eElement) {
-            if (pAttr->eAttribute == eAttribute) {
-              if (eType == XFA_ATTRIBUTETYPE_NOTSURE || eType == pAttr->eType) {
-                return pAttr;
-              }
-              return nullptr;
-            }
-            iAfter++;
-            if (iAfter > g_iXFANotsureCount - 1) {
-              break;
-            }
-            pAttr = g_XFANotsureAttributes + iAfter;
-          }
-        }
-        return nullptr;
-      }
-    } else if (eElement < pAttr->eElement) {
-      iEnd = iMid - 1;
-    } else {
-      iStart = iMid + 1;
-    }
-  } while (iStart <= iEnd);
-  return nullptr;
-}
-
-const XFA_METHODINFO* XFA_GetMethodByName(XFA_Element eElement,
-                                          const CFX_WideStringC& wsMethodName) {
-  if (wsMethodName.IsEmpty())
-    return nullptr;
-
-  int32_t iElementIndex = static_cast<int32_t>(eElement);
-  while (iElementIndex != -1) {
-    const XFA_SCRIPTHIERARCHY* scriptIndex = g_XFAScriptIndex + iElementIndex;
-    int32_t icount = scriptIndex->wMethodCount;
-    if (icount == 0) {
-      iElementIndex = scriptIndex->wParentIndex;
-      continue;
-    }
-    uint32_t uHash = FX_HashCode_GetW(wsMethodName, false);
-    int32_t iStart = scriptIndex->wMethodStart;
-    int32_t iEnd = iStart + icount - 1;
-    do {
-      int32_t iMid = (iStart + iEnd) / 2;
-      const XFA_METHODINFO* pInfo = g_SomMethodData + iMid;
-      if (uHash == pInfo->uHash) {
-        return pInfo;
-      } else if (uHash < pInfo->uHash) {
-        iEnd = iMid - 1;
-      } else {
-        iStart = iMid + 1;
-      }
-    } while (iStart <= iEnd);
-    iElementIndex = scriptIndex->wParentIndex;
-  }
-  return nullptr;
-}
-const XFA_SCRIPTATTRIBUTEINFO* XFA_GetScriptAttributeByName(
-    XFA_Element eElement,
-    const CFX_WideStringC& wsAttributeName) {
-  if (wsAttributeName.IsEmpty())
-    return nullptr;
-
-  int32_t iElementIndex = static_cast<int32_t>(eElement);
-  while (iElementIndex != -1) {
-    const XFA_SCRIPTHIERARCHY* scriptIndex = g_XFAScriptIndex + iElementIndex;
-    int32_t icount = scriptIndex->wAttributeCount;
-    if (icount == 0) {
-      iElementIndex = scriptIndex->wParentIndex;
-      continue;
-    }
-    uint32_t uHash = FX_HashCode_GetW(wsAttributeName, false);
-    int32_t iStart = scriptIndex->wAttributeStart, iEnd = iStart + icount - 1;
-    do {
-      int32_t iMid = (iStart + iEnd) / 2;
-      const XFA_SCRIPTATTRIBUTEINFO* pInfo = g_SomAttributeData + iMid;
-      if (uHash == pInfo->uHash) {
-        return pInfo;
-      } else if (uHash < pInfo->uHash) {
-        iEnd = iMid - 1;
-      } else {
-        iStart = iMid + 1;
-      }
-    } while (iStart <= iEnd);
-    iElementIndex = scriptIndex->wParentIndex;
-  }
-  return nullptr;
-}
-void CXFA_Measurement::Set(const CFX_WideStringC& wsMeasure) {
-  if (wsMeasure.IsEmpty()) {
-    m_fValue = 0;
-    m_eUnit = XFA_UNIT_Unknown;
-    return;
-  }
-  int32_t iUsedLen = 0;
-  int32_t iOffset = (wsMeasure.GetAt(0) == L'=') ? 1 : 0;
-  FX_FLOAT fValue = FX_wcstof(wsMeasure.c_str() + iOffset,
-                              wsMeasure.GetLength() - iOffset, &iUsedLen);
-  XFA_UNIT eUnit = GetUnit(wsMeasure.Mid(iOffset + iUsedLen));
-  Set(fValue, eUnit);
-}
-FX_BOOL CXFA_Measurement::ToString(CFX_WideString& wsMeasure) const {
-  switch (GetUnit()) {
-    case XFA_UNIT_Mm:
-      wsMeasure.Format(L"%.8gmm", GetValue());
-      return TRUE;
-    case XFA_UNIT_Pt:
-      wsMeasure.Format(L"%.8gpt", GetValue());
-      return TRUE;
-    case XFA_UNIT_In:
-      wsMeasure.Format(L"%.8gin", GetValue());
-      return TRUE;
-    case XFA_UNIT_Cm:
-      wsMeasure.Format(L"%.8gcm", GetValue());
-      return TRUE;
-    case XFA_UNIT_Mp:
-      wsMeasure.Format(L"%.8gmp", GetValue());
-      return TRUE;
-    case XFA_UNIT_Pc:
-      wsMeasure.Format(L"%.8gpc", GetValue());
-      return TRUE;
-    case XFA_UNIT_Em:
-      wsMeasure.Format(L"%.8gem", GetValue());
-      return TRUE;
-    case XFA_UNIT_Percent:
-      wsMeasure.Format(L"%.8g%%", GetValue());
-      return TRUE;
-    default:
-      wsMeasure.Format(L"%.8g", GetValue());
-      return FALSE;
-  }
-}
-FX_BOOL CXFA_Measurement::ToUnit(XFA_UNIT eUnit, FX_FLOAT& fValue) const {
-  fValue = GetValue();
-  XFA_UNIT eFrom = GetUnit();
-  if (eFrom == eUnit) {
-    return TRUE;
-  }
-  switch (eFrom) {
-    case XFA_UNIT_Pt:
-      break;
-    case XFA_UNIT_Mm:
-      fValue *= 72 / 2.54f / 10;
-      break;
-    case XFA_UNIT_In:
-      fValue *= 72;
-      break;
-    case XFA_UNIT_Cm:
-      fValue *= 72 / 2.54f;
-      break;
-    case XFA_UNIT_Mp:
-      fValue *= 0.001f;
-      break;
-    case XFA_UNIT_Pc:
-      fValue *= 12.0f;
-      break;
-    default:
-      fValue = 0;
-      return FALSE;
-  }
-  switch (eUnit) {
-    case XFA_UNIT_Pt:
-      return TRUE;
-    case XFA_UNIT_Mm:
-      fValue /= 72 / 2.54f / 10;
-      return TRUE;
-    case XFA_UNIT_In:
-      fValue /= 72;
-      return TRUE;
-    case XFA_UNIT_Cm:
-      fValue /= 72 / 2.54f;
-      return TRUE;
-    case XFA_UNIT_Mp:
-      fValue /= 0.001f;
-      return TRUE;
-    case XFA_UNIT_Pc:
-      fValue /= 12.0f;
-      return TRUE;
-    default:
-      fValue = 0;
-      return FALSE;
-  }
-}
-XFA_UNIT CXFA_Measurement::GetUnit(const CFX_WideStringC& wsUnit) {
-  if (wsUnit == FX_WSTRC(L"mm")) {
-    return XFA_UNIT_Mm;
-  } else if (wsUnit == FX_WSTRC(L"pt")) {
-    return XFA_UNIT_Pt;
-  } else if (wsUnit == FX_WSTRC(L"in")) {
-    return XFA_UNIT_In;
-  } else if (wsUnit == FX_WSTRC(L"cm")) {
-    return XFA_UNIT_Cm;
-  } else if (wsUnit == FX_WSTRC(L"pc")) {
-    return XFA_UNIT_Pc;
-  } else if (wsUnit == FX_WSTRC(L"mp")) {
-    return XFA_UNIT_Mp;
-  } else if (wsUnit == FX_WSTRC(L"em")) {
-    return XFA_UNIT_Em;
-  } else if (wsUnit == FX_WSTRC(L"%")) {
-    return XFA_UNIT_Percent;
-  } else {
-    return XFA_UNIT_Unknown;
-  }
-}
-IFX_Stream* XFA_CreateWideTextRead(const CFX_WideString& wsBuffer) {
-  return new CXFA_WideTextRead(wsBuffer);
-}
-CXFA_WideTextRead::CXFA_WideTextRead(const CFX_WideString& wsBuffer)
-    : m_wsBuffer(wsBuffer), m_iPosition(0), m_iRefCount(1) {}
-void CXFA_WideTextRead::Release() {
-  if (--m_iRefCount < 1) {
-    delete this;
-  }
-}
-IFX_Stream* CXFA_WideTextRead::Retain() {
-  m_iRefCount++;
-  return this;
-}
-uint32_t CXFA_WideTextRead::GetAccessModes() const {
-  return FX_STREAMACCESS_Read | FX_STREAMACCESS_Text;
-}
-int32_t CXFA_WideTextRead::GetLength() const {
-  return m_wsBuffer.GetLength() * sizeof(FX_WCHAR);
-}
-int32_t CXFA_WideTextRead::Seek(FX_STREAMSEEK eSeek, int32_t iOffset) {
-  switch (eSeek) {
-    case FX_STREAMSEEK_Begin:
-      m_iPosition = iOffset;
-      break;
-    case FX_STREAMSEEK_Current:
-      m_iPosition += iOffset;
-      break;
-    case FX_STREAMSEEK_End:
-      m_iPosition = m_wsBuffer.GetLength() + iOffset;
-      break;
-  }
-  if (m_iPosition < 0) {
-    m_iPosition = 0;
-  }
-  if (m_iPosition > m_wsBuffer.GetLength()) {
-    m_iPosition = m_wsBuffer.GetLength();
-  }
-  return GetPosition();
-}
-int32_t CXFA_WideTextRead::GetPosition() {
-  return m_iPosition * sizeof(FX_WCHAR);
-}
-FX_BOOL CXFA_WideTextRead::IsEOF() const {
-  return m_iPosition >= m_wsBuffer.GetLength();
-}
-int32_t CXFA_WideTextRead::ReadData(uint8_t* pBuffer, int32_t iBufferSize) {
-  return 0;
-}
-int32_t CXFA_WideTextRead::ReadString(FX_WCHAR* pStr,
-                                      int32_t iMaxLength,
-                                      FX_BOOL& bEOS) {
-  iMaxLength = std::min(iMaxLength, m_wsBuffer.GetLength() - m_iPosition);
-  if (iMaxLength == 0)
-    return 0;
-
-  FXSYS_wcsncpy(pStr, m_wsBuffer.c_str() + m_iPosition, iMaxLength);
-  m_iPosition += iMaxLength;
-  bEOS = IsEOF();
-  return iMaxLength;
-}
-int32_t CXFA_WideTextRead::WriteData(const uint8_t* pBuffer,
-                                     int32_t iBufferSize) {
-  return 0;
-}
-int32_t CXFA_WideTextRead::WriteString(const FX_WCHAR* pStr, int32_t iLength) {
-  return 0;
-}
-FX_BOOL CXFA_WideTextRead::SetLength(int32_t iLength) {
-  return FALSE;
-}
-int32_t CXFA_WideTextRead::GetBOM(uint8_t bom[4]) const {
-  return 0;
-}
-uint16_t CXFA_WideTextRead::GetCodePage() const {
-  return (sizeof(FX_WCHAR) == 2) ? FX_CODEPAGE_UTF16LE : FX_CODEPAGE_UTF32LE;
-}
-uint16_t CXFA_WideTextRead::SetCodePage(uint16_t wCodePage) {
-  return GetCodePage();
-}
-
-IFX_Stream* CXFA_WideTextRead::CreateSharedStream(uint32_t dwAccess,
-                                                  int32_t iOffset,
-                                                  int32_t iLength) {
-  return nullptr;
-}
-
-void CXFA_WideTextRead::Lock() {}
-
-void CXFA_WideTextRead::Unlock() {}
-
-CFX_WideString CXFA_WideTextRead::GetSrcText() const {
-  return m_wsBuffer;
-}