Method add_property

gi/object.cpp:250–263

A hook on adding a property to an object. This is called during a set * property operation after all the resolve hooks on the prototype chain have * failed to resolve. We use this to mark an object as needing toggle refs when * custom state is set on it, because we need to keep the JS GObject wrapper * alive in order not to lose custom "expando" properties. */

 * alive in order not to lose custom "expando" properties.
 */
bool ObjectBase::add_property(JSContext* cx, JS::HandleObject obj,
                              JS::HandleId id, JS::HandleValue value) {
    auto* priv = ObjectBase::for_js(cx, obj);

    // priv is null during init: property is not being added from JS
    if (!priv) {
        debug_jsprop_static("Add property hook", id, obj);
        return true;
    }
    if (priv->is_prototype())
        return true;

    return priv->to_instance()->add_property_impl(cx, obj, id, value);
}

bool ObjectInstance::add_property_impl(JSContext* cx, JS::HandleObject obj,
                                       JS::HandleId id, JS::HandleValue) {