Make code compile with clang_use_chrome_plugin (part II)

core/fxcrt/fx_basic_wstring.cpp

 // 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 <stddef.h>
 
 #include <algorithm>
 #include <cctype>
@@ skipping 53 matching lines @@
               "Strings must not require more space than pointers");
 
 CFX_WideString::CFX_WideString(const FX_WCHAR* pStr, FX_STRSIZE nLen) {
   if (nLen < 0)
     nLen = pStr ? FXSYS_wcslen(pStr) : 0;
 
   if (nLen)
     m_pData.Reset(StringData::Create(pStr, nLen));
 }
 
+CFX_WideString::CFX_WideString() {}
+
+CFX_WideString::CFX_WideString(const CFX_WideString& other)
+    : m_pData(other.m_pData) {}
+
+CFX_WideString::CFX_WideString(CFX_WideString&& other) {
+  m_pData.Swap(other.m_pData);
+}
+
 CFX_WideString::CFX_WideString(FX_WCHAR ch) {
   m_pData.Reset(StringData::Create(1));
   m_pData->m_String[0] = ch;
 }
 
+CFX_WideString::CFX_WideString(const FX_WCHAR* ptr)
+    : CFX_WideString(ptr, ptr ? FXSYS_wcslen(ptr) : 0) {}
+
 CFX_WideString::CFX_WideString(const CFX_WideStringC& stringSrc) {
   if (!stringSrc.IsEmpty()) {
     m_pData.Reset(StringData::Create(stringSrc.c_str(), stringSrc.GetLength()));
   }
 }
 
 CFX_WideString::CFX_WideString(const CFX_WideStringC& str1,
                                const CFX_WideStringC& str2) {
   int nNewLen = str1.GetLength() + str2.GetLength();
   if (nNewLen == 0)
@@ skipping 83 matching lines @@
     return other.IsEmpty();
 
   if (other.IsEmpty())
     return false;
 
   return other.m_pData->m_nDataLength == m_pData->m_nDataLength &&
          wmemcmp(other.m_pData->m_String, m_pData->m_String,
                  m_pData->m_nDataLength) == 0;
 }
 
+bool CFX_WideString::operator!=(const wchar_t* ptr) const {
+  return !(*this == ptr);
+}
+
+bool CFX_WideString::operator!=(const CFX_WideStringC& str) const {
+  return !(*this == str);
+}
+
+bool CFX_WideString::operator!=(const CFX_WideString& other) const {
+  return !(*this == other);
+}
+
+bool CFX_WideString::operator<(const CFX_WideString& str) const {
+  int result =
+      wmemcmp(c_str(), str.c_str(), std::min(GetLength(), str.GetLength()));
+  return result < 0 || (result == 0 && GetLength() < str.GetLength());
+}
+
+FX_WCHAR CFX_WideString::GetAt(FX_STRSIZE nIndex) const {
+  return m_pData ? m_pData->m_String[nIndex] : 0;
+}
+
+FX_WCHAR CFX_WideString::operator[](FX_STRSIZE nIndex) const {
+  return m_pData ? m_pData->m_String[nIndex] : 0;
+}
+
 void CFX_WideString::AssignCopy(const FX_WCHAR* pSrcData, FX_STRSIZE nSrcLen) {
   AllocBeforeWrite(nSrcLen);
   m_pData->CopyContents(pSrcData, nSrcLen);
   m_pData->m_nDataLength = nSrcLen;
 }
 
 void CFX_WideString::ReallocBeforeWrite(FX_STRSIZE nNewLength) {
   if (m_pData && m_pData->CanOperateInPlace(nNewLength))
     return;
 
@@ skipping 660 matching lines @@
 }
 
 FX_STRSIZE CFX_WideString::WStringLength(const unsigned short* str) {
   FX_STRSIZE len = 0;
   if (str)
     while (str[len])
       len++;
   return len;
 }
 
+const FX_WCHAR* CFX_WideString::c_str() const {
+  return m_pData ? m_pData->m_String : L"";
+}
+
+CFX_WideStringC CFX_WideString::AsStringC() const {
+  return CFX_WideStringC(c_str(), GetLength());
+}
+
+void CFX_WideString::clear() {
+  m_pData.Reset();
+}
+
+FX_STRSIZE CFX_WideString::GetLength() const {
+  return m_pData ? m_pData->m_nDataLength : 0;
+}
+
+bool CFX_WideString::IsEmpty() const {
+  return !GetLength();
+}
+
 void CFX_WideString::TrimRight(const CFX_WideStringC& pTargets) {
   if (IsEmpty() || pTargets.IsEmpty())
     return;
 
   FX_STRSIZE pos = GetLength();
   while (pos && pTargets.Find(m_pData->m_String[pos - 1]) != -1)
     pos--;
 
   if (pos < m_pData->m_nDataLength) {
     ReallocBeforeWrite(m_pData->m_nDataLength);
@@ skipping 116 matching lines @@
       FXSYS_MultiByteToWideChar(codepage, 0, bstr.c_str(), src_len, nullptr, 0);
   CFX_WideString wstr;
   if (dest_len) {
     FX_WCHAR* dest_buf = wstr.GetBuffer(dest_len);
     FXSYS_MultiByteToWideChar(codepage, 0, bstr.c_str(), src_len, dest_buf,
                               dest_len);
     wstr.ReleaseBuffer(dest_len);
   }
   return wstr;
 }