--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/JavaScriptCore/API/JSStringRefCF.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2006, 2007 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#include "config.h"
+#include "JSStringRefCF.h"
+
+#include "APICast.h"
+#include "InitializeThreading.h"
+#include "JSStringRef.h"
+#include "OpaqueJSString.h"
+#include <runtime/UString.h>
+#include <runtime/JSValue.h>
+#include <wtf/OwnArrayPtr.h>
+
+JSStringRef JSStringCreateWithCFString(CFStringRef string)
+{
+    JSC::initializeThreading();
+
+    // We cannot use CFIndex here since CFStringGetLength can return values larger than
+    // it can hold.  (<rdar://problem/6806478>)
+    size_t length = CFStringGetLength(string);
+    if (length) {
+        OwnArrayPtr<UniChar> buffer(new UniChar[length]);
+        CFStringGetCharacters(string, CFRangeMake(0, length), buffer.get());
+        COMPILE_ASSERT(sizeof(UniChar) == sizeof(UChar), unichar_and_uchar_must_be_same_size);
+        return OpaqueJSString::create(reinterpret_cast<UChar*>(buffer.get()), length).releaseRef();
+    } else {
+        return OpaqueJSString::create(0, 0).releaseRef();
+    }
+}
+
+CFStringRef JSStringCopyCFString(CFAllocatorRef alloc, JSStringRef string)
+{
+    return CFStringCreateWithCharacters(alloc, reinterpret_cast<const UniChar*>(string->characters()), string->length());
+}