1 files changed, 20 insertions, 0 deletions
diff --git a/WebCore/bindings/v8/V8NPUtils.h b/WebCore/bindings/v8/V8NPUtils.h
index c978d2b..78414b4 100644
--- a/WebCore/bindings/v8/V8NPUtils.h
+++ b/WebCore/bindings/v8/V8NPUtils.h
@@ -38,6 +38,8 @@
 
 #include <v8.h>
 
+namespace WebCore {
+
 // Convert a V8 Value of any type (string, bool, object, etc) to a NPVariant.
 void convertV8ObjectToNPVariant(v8::Local<v8::Value>, NPObject*, NPVariant*);
 
@@ -48,4 +50,22 @@ v8::Handle<v8::Value> convertNPVariantToV8Object(const NPVariant*, NPObject*);
 // Helper function to create an NPN String Identifier from a v8 string.
 NPIdentifier getStringIdentifier(v8::Handle<v8::String>);
 
+// The ExceptionHandler will be notified of any exceptions thrown while
+// operating on a NPObject.
+typedef void (*ExceptionHandler)(void* data, const NPUTF8* message);
+void pushExceptionHandler(ExceptionHandler, void* data);
+void popExceptionHandler();
+
+// Upon destruction, an ExceptionCatcher will pass a caught exception to the
+// current ExceptionHandler.
+class ExceptionCatcher {
+public:
+    ExceptionCatcher();
+    ~ExceptionCatcher();
+private:
+    v8::TryCatch m_tryCatch;
+};
+
+} // namespace WebCore
+
 #endif // V8NPUtils_h