Method get_diff_obj

utility/diff_result.cpp:263–314

}

Ref<ObjectDiffResult> ObjectDiffResult::get_diff_obj(Object *a, Object *b, bool exclude_non_storage, const Dictionary &p_structured_changes) {
	Ref<ObjectDiffResult> diff;
	diff.instantiate();
	List<PropertyInfo> p_list_a;
	List<PropertyInfo> p_list_b;
	diff->set_old_object(a);
	diff->set_new_object(b);
	a->get_property_list(&p_list_a, false);
	b->get_property_list(&p_list_b, false);
	if (a->get_script_instance()) {
		a->get_script_instance()->get_property_list(&p_list_a);
		a->notification(Node::NOTIFICATION_READY);
		a->get_script_instance()->notification(Node::NOTIFICATION_READY);
	}
	if (b->get_script_instance()) {
		b->get_script_instance()->get_property_list(&p_list_b);
		b->notification(Node::NOTIFICATION_READY);
		b->get_script_instance()->notification(Node::NOTIFICATION_READY);
	}
	// diff is key: [old_value, new_value]
	HashSet<String> prop_names;
	// TODO: handle PROPERTY_USAGE_NO_EDITOR, PROPERTY_USAGE_INTERNAL, etc.
	for (auto &prop : p_list_a) {
		if (exclude_non_storage && !(prop.usage & PROPERTY_USAGE_STORAGE)) {
			continue;
		}
		prop_names.insert(prop.name);
	}
	for (auto &prop : p_list_b) {
		if (exclude_non_storage && !(prop.usage & PROPERTY_USAGE_STORAGE)) {
			continue;
		}
		prop_names.insert(prop.name);
	}
	for (auto &prop : prop_names) {
		bool a_valid = false;
		bool b_valid = false;
		auto prop_a = a->get(prop, &a_valid);
		auto prop_b = b->get(prop, &b_valid);
		if (!a_valid && !b_valid) {
			continue;
		}
		if (!a_valid) {
			diff->set_property_diff(memnew(PropertyDiffResult(prop, "deleted", Variant(), prop_b, a, b)));
		} else if (!b_valid) {
			diff->set_property_diff(memnew(PropertyDiffResult(prop, "added", prop_a, Variant(), a, b)));
		} else if (!DiffResult::deep_equals(prop_a, prop_b)) {
			diff->set_property_diff(memnew(PropertyDiffResult(prop, "changed", prop_a, prop_b, a, b)));
		}
	}
	return diff;
}

void NodeDiffResult::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_path", "path"), &NodeDiffResult::set_path);