I'm trying to call a method on a script class from C++, but I keep getting a null pointer exception, I've been stuck on this for about a week now… I'm using an almost exact copy of the example in the documentation. What is weird is that it calls the function successfully, but then crashes immediately after…

Here is a minimal reproducible example (C++ 11): https://pastebin.com/EraySHgz

In your code you're attempting to call the script function twice. The first time you're doing it correctly. The second time you prepare the context, but don't set the object before calling Execute, which is the reason for the null pointer exception.

Oh ok… I was misunderstanding the way it works, I thought that the object got stored inside the context as some kind of userdata…