CDB: Use maxStringLength parameter from settings.

Change-Id: I0969bbbc39863e0981b5af81feced10d0fbbecac
Reviewed-by: hjk <hjk121@nokiamail.com>

src/libs/qtcreatorcdbext/stringutils.cpp

@@ -209,26 +209,30 @@ inline char toHexDigit(unsigned v)
 }
 
 // Strings from raw data.
-std::wstring quotedWStringFromCharData(const unsigned char *data, size_t size)
+std::wstring quotedWStringFromCharData(const unsigned char *data, size_t size, bool truncated)
 {
     std::wstring rc;
-    rc.reserve(size + 2);
+    rc.reserve(size + (truncated ? 5 : 2));
     rc.push_back(L'"');
     const unsigned char *end = data + size;
     for ( ; data < end; data++)
         rc.push_back(wchar_t(*data));
+    if (truncated)
+        rc.append(L"...");
     rc.push_back(L'"');
     return rc;
 }
 
-std::wstring quotedWStringFromWCharData(const unsigned char *dataIn, size_t sizeIn)
+std::wstring quotedWStringFromWCharData(const unsigned char *dataIn, size_t sizeIn, bool truncated)
 {
     std::wstring rc;
     const wchar_t *data = reinterpret_cast<const wchar_t *>(dataIn);
     const size_t size = sizeIn / sizeof(wchar_t);
-    rc.reserve(size + 2);
+    rc.reserve(size + (truncated ? 5 : 2));
     rc.push_back(L'"');
     rc.append(data, data + size);
+    if (truncated)
+        rc.append(L"...");
     rc.push_back(L'"');
     return rc;
 }

src/libs/qtcreatorcdbext/stringutils.h

@@ -176,8 +176,8 @@ std::string wStringToString(const std::wstring &w);
 std::wstring stringToWString(const std::string &w);
 
 // Strings from raw data.
-std::wstring quotedWStringFromCharData(const unsigned char *data, size_t size);
+std::wstring quotedWStringFromCharData(const unsigned char *data, size_t size, bool truncated = false);
-std::wstring quotedWStringFromWCharData(const unsigned char *data, size_t size);
+std::wstring quotedWStringFromWCharData(const unsigned char *data, size_t size, bool truncated = false);
 
 // Helper for dumping memory
 std::string dumpMemory(const unsigned char *data, size_t size, bool wantQuotes = true);

src/libs/qtcreatorcdbext/symbolgroupvalue.cpp

@@ -1590,7 +1590,7 @@ static inline bool dumpQString(const SymbolGroupValue &v, std::wostream &str,
     if (!typeArrayV)
         return false;
     if (!readQt5StringData(typeArrayV, qtInfo.version, true, position,
-                           std::min(length, unsigned(10240)),
+                           std::min(length, ExtensionContext::instance().parameters().maxStringLength),
                            &fullSize, &size, &memory))
         return false;
     if (size) {
@@ -2302,9 +2302,12 @@ static bool dumpStd_W_String(const SymbolGroupValue &v, int type, std::wostream
     // and MSVC2008 none
     const SymbolGroupValue bx = SymbolGroupValue::findMember(v, "_Bx");
     const int reserved = bx.parent()["_Myres"].intValue();
-    const int size = bx.parent()["_Mysize"].intValue();
+    int size = bx.parent()["_Mysize"].intValue();
     if (!bx || reserved < 0 || size < 0)
         return false;
+    const bool truncated = unsigned(size) > ExtensionContext::instance().parameters().maxStringLength;
+    if (truncated)
+        size = ExtensionContext::instance().parameters().maxStringLength;
     // 'Buf' array for small strings, else pointer 'Ptr'.
     const int bufSize = type == KT_StdString ? 16 : 8; // see basic_string.
     const unsigned long memSize = type == KT_StdString ? size : 2 * size;
@@ -2315,8 +2318,8 @@ static bool dumpStd_W_String(const SymbolGroupValue &v, int type, std::wostream
     if (!memory)
         return false;
     str << (type == KT_StdString ?
-        quotedWStringFromCharData(memory, memSize) :
+        quotedWStringFromCharData(memory, memSize, truncated) :
-        quotedWStringFromWCharData(memory, memSize));
+        quotedWStringFromWCharData(memory, memSize, truncated));
     if (memoryHandle)
         *memoryHandle = new MemoryHandle(memory, memSize);
     else