CFX_MapByteStringToPtr considered harmful.

core/src/fxge/ge/fx_ge_text.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 "../../../include/fxge/fx_ge.h"
 #include "../../../include/fxge/fx_freetype.h"
 #include "../../../include/fxcodec/fx_codec.h"
 #include "text_int.h"
@@ skipping 1214 matching lines @@
       delete cache;
       m_ExtFaceMap.erase(curr_it);
     }
   }
 }
 
 CFX_FaceCache::CFX_FaceCache(FXFT_Face face) {
   m_Face = face;
 }
 CFX_FaceCache::~CFX_FaceCache() {
-  FX_POSITION pos = m_SizeMap.GetStartPosition();
-  CFX_ByteString Key;
-  CFX_SizeGlyphCache* pSizeCache = NULL;
-  while (pos) {
-    m_SizeMap.GetNextAssoc(pos, Key, (void*&)pSizeCache);
-    delete pSizeCache;
+  for (const auto& pair : m_SizeMap) {
+    delete pair.second;
   }
-  m_SizeMap.RemoveAll();
-  pos = m_PathMap.GetStartPosition();
+  m_SizeMap.clear();
+  FX_POSITION pos = m_PathMap.GetStartPosition();
   void* key1;
   CFX_PathData* pPath;
   while (pos) {
     m_PathMap.GetNextAssoc(pos, key1, (void*&)pPath);
     delete pPath;
   }
   m_PathMap.RemoveAll();
 }
 #if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_
 void CFX_FaceCache::InitPlatform() {}
 #endif
 CFX_GlyphBitmap* CFX_FaceCache::LookUpGlyphBitmap(
     CFX_Font* pFont,
     const CFX_AffineMatrix* pMatrix,
     CFX_ByteStringC& FaceGlyphsKey,
     FX_DWORD glyph_index,
     FX_BOOL bFontStyle,
     int dest_width,
     int anti_alias) {
-  CFX_SizeGlyphCache* pSizeCache = NULL;
-  if (!m_SizeMap.Lookup(FaceGlyphsKey, (void*&)pSizeCache)) {
+  CFX_SizeGlyphCache* pSizeCache;
+  auto it = m_SizeMap.find(FaceGlyphsKey);
+  if (it == m_SizeMap.end()) {
     pSizeCache = new CFX_SizeGlyphCache;
-    m_SizeMap.SetAt(FaceGlyphsKey, pSizeCache);
+    m_SizeMap[FaceGlyphsKey] = pSizeCache;
+  } else {
+    pSizeCache = it->second;
   }
   CFX_GlyphBitmap* pGlyphBitmap = NULL;
   if (pSizeCache->m_GlyphMap.Lookup((void*)(uintptr_t)glyph_index,
                                     (void*&)pGlyphBitmap)) {
     return pGlyphBitmap;
   }
   pGlyphBitmap = RenderGlyph(pFont, glyph_index, bFontStyle, pMatrix,
                              dest_width, anti_alias);
   if (pGlyphBitmap == NULL) {
     return NULL;
@@ skipping 593 matching lines @@
 void _CFX_UniqueKeyGen::Generate(int count, ...) {
   va_list argList;
   va_start(argList, count);
   for (int i = 0; i < count; i++) {
     int p = va_arg(argList, int);
     ((FX_DWORD*)m_Key)[i] = p;
   }
   va_end(argList);
   m_KeyLen = count * sizeof(FX_DWORD);
 }