gistfile1.txt

It is about resultObject

object = [cls alloc];
invocation.target = object; // its selector is -init

[invocation invoke];
[invocation getReturnValue:&resultObject];
info.This()->SetInternalField(0, makeWrapper([[L8Runtime currentRuntime] V8Context], resultObject));


v8::Handle<v8::External> makeWrapper(v8::Handle<v8::Context> context, id wrappedObject)
{
// the bridging retain here >
  void *voidObject = (void *)CFBridgingRetain(wrappedObject);

	v8::Handle<v8::External> ext = v8::External::New(voidObject);
	v8::Persistent<v8::External> persist(context->GetIsolate(),ext);
	persist.MakeWeak((__bridge void *)wrappedObject, ObjCWeakReferenceCallback);

	return ext;
}


// the weak callback is not called (it should be when the object is removed by the V8 GC)
void ObjCWeakReferenceCallback(v8::Isolate *isolate, v8::Persistent<v8::External> *persistent, void *parameter)
{
  v8::Local<v8::External> ext = v8::Local<v8::External>::New(isolate, *persistent);

#if 1 // Debug
	id wrappedObject = 	CFBridgingRelease(ext->Value());
	NSLog(@"Weakreferencecallback for object %@",wrappedObject);
#else
	CFRelease(ext->Value());
#endif
}