- isolate_->Throw(*factory_->NewTypeError(
- "circular_structure", HandleVector<Object>(NULL, 0)));
+ Handle<Object> error;
+ MaybeHandle<Object> maybe_error = factory_->NewTypeError(
+ "circular_structure", HandleVector<Object>(NULL, 0));
+ if (maybe_error.ToHandle(&error)) isolate_->Throw(*error);