Method finalize

gi/wrapperutils.h:480–498

* GIWrapperBase::finalize: * * This should always be included in the Base::klass vtable. The destructors * of Prototype and Instance will be called in the finalize hook. It is not * necessary to include a finalize_impl() function in Prototype or Instance. * Any needed finalization should be done in ~Prototype() and ~Instance(). */

     * Any needed finalization should be done in ~Prototype() and ~Instance().
     */
    static void finalize(JS::GCContext* gcx, JSObject* obj) {
        Base* priv = Base::for_js_nocheck(obj);
        if (!priv)
            return;  // construction didn't finish

        // Call only GIWrapperBase's original method here, not any overrides;
        // e.g., we don't want to deal with a read barrier in ObjectInstance.
        static_cast<GIWrapperBase*>(priv)->debug_lifecycle(obj, "Finalize");

        if (priv->is_prototype()) {
            GType gtype = priv->to_prototype()->gtype();
            remove_prototype_associated_memory(gtype, obj);
            priv->to_prototype()->finalize_impl(gcx, obj);
        } else {
            priv->to_instance()->finalize_impl(gcx, obj);
        }

        Base::unset_private(obj);
    }

    /**
     * GIWrapperBase::trace: