How to initialize a custom class with parameters

Hi there,

I wondered if it was possible to instantiate a custom GDNative class with arguments in GDNative code.
This could be useful in several situations e.g. :
1. class with const members which require a parametrized constructor with initialization list
2. inline-style instanciation like `some_function(some_class::_new(/* some arguments */));`

As far as I understand GDNative library, it seems a custom class `some_class` is intanciated by `NativeScript::new_()` itself called from the `some_class::_new()` function itself inserted by the `GODOT_CLASS()` macro.

However in this processus no argument is passed.

Anyone could tell me a bit more about how to use the C++ constructors and/or the `_init()` method to pass arguments upon instanciation ?

Best
Flarkk