[ABANDONED] Add exception handling options to V8StringResource<T>::prepare.

Source/bindings/v8/V8Binding.h

Index: Source/bindings/v8/V8Binding.h
diff --git a/Source/bindings/v8/V8Binding.h b/Source/bindings/v8/V8Binding.h
index f1d0cc5daf56164ae948d12b3d1da60ea4361c59..8b53470e50cfddfd698e9d459fbf7749931f3c21 100644
--- a/Source/bindings/v8/V8Binding.h
+++ b/Source/bindings/v8/V8Binding.h
@@ -537,7 +537,11 @@ template<>
 struct NativeValueTraits<String> {
     static inline String nativeValue(const v8::Handle<v8::Value>& value, v8::Isolate* isolate)

[yhirano, 2014/04/24 06:52:51]

Because this function is used in another v8::TryCatch, we don't have to detect
the exception here.

     {
-        TOSTRING_DEFAULT(V8StringResource<>, stringValue, value, String());
+        V8StringResource<> stringValue(value);
+        // Because V8StringResourceToString<DoNotCatch>::call doesn't use the
+        // instance object, we can pass null pointer.
+        if (UNLIKELY(!stringValue.init<V8StringResourceDoNotCatchException>(0)))
+            return String();
         return stringValue;
     }
 };