1 files changed, 31 insertions, 0 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/runtime/UString.cpp b/src/3rdparty/webkit/JavaScriptCore/runtime/UString.cpp
index 118751e35..f64219c07 100644
--- a/src/3rdparty/webkit/JavaScriptCore/runtime/UString.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/UString.cpp
@@ -942,6 +942,37 @@ UString UString::from(int i)
     return UString(p, static_cast<int>(end - p));
 }
 
+#if PLATFORM(WIN_OS) && PLATFORM(X86_64) && COMPILER(MSVC)
+UString UString::from(int64_t i)
+{
+    UChar buf[1 + sizeof(i) * 3];
+    UChar* end = buf + sizeof(buf) / sizeof(UChar);
+    UChar* p = end;
+
+    if (i == 0)
+        *--p = '0';
+    else if (i == LLONG_MIN) {
+        char minBuf[1 + sizeof(i) * 3];
+        snprintf(minBuf, sizeof(minBuf) - 1, "%I64d", LLONG_MIN);
+        return UString(minBuf);
+    } else {
+        bool negative = false;
+        if (i < 0) {
+            negative = true;
+            i = -i;
+        }
+        while (i) {
+            *--p = static_cast<unsigned short>((i % 10) + '0');
+            i /= 10;
+        }
+        if (negative)
+            *--p = '-';
+    }
+
+    return UString(p, static_cast<int>(end - p));
+}
+#endif
+
 UString UString::from(unsigned int u)
 {
     UChar buf[sizeof(u) * 3];