diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSExceptionBase.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSExceptionBase.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2009 Apple 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 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 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 "JSExceptionBase.h"
+
+#include "JSDOMCoreException.h"
+#include "JSEventException.h"
+#include "JSRangeException.h"
+#include "JSXMLHttpRequestException.h"
+#if ENABLE(DATABASE)
+#include "SQLException.h"
+#include "JSSQLException.h"
+#endif
+#if ENABLE(SVG)
+#include "JSSVGException.h"
+#endif
+#if ENABLE(XPATH)
+#include "JSXPathException.h"
+#endif
+
+namespace WebCore {
+
+ExceptionBase* toExceptionBase(JSC::JSValue value)
+{
+    if (DOMCoreException* domException = toDOMCoreException(value))
+        return reinterpret_cast<ExceptionBase*>(domException);
+    if (RangeException* rangeException = toRangeException(value))
+        return reinterpret_cast<ExceptionBase*>(rangeException);
+    if (EventException* eventException = toEventException(value))
+        return reinterpret_cast<ExceptionBase*>(eventException);
+    if (XMLHttpRequestException* xmlHttpException = toXMLHttpRequestException(value))
+        return reinterpret_cast<ExceptionBase*>(xmlHttpException);
+#if ENABLE(SVG)
+    if (SVGException* svgException = toSVGException(value))
+        return reinterpret_cast<ExceptionBase*>(svgException);
+#endif
+#if ENABLE(XPATH)
+    if (XPathException* pathException = toXPathException(value))
+        return reinterpret_cast<ExceptionBase*>(pathException);
+#endif
+#if ENABLE(DATABASE)
+    if (SQLException* pathException = toSQLException(value))
+        return reinterpret_cast<ExceptionBase*>(pathException);
+#endif
+
+    return 0;
+}
+
+} // namespace WebCore