+
−pub type GearId = u16;
+
−pub trait GearData {}
+
−
+
−pub trait GearDataProcessor<T: GearData> {
+
−    fn add(&mut self, gear_id: GearId, gear_data: T);
+
−}
+
−
+
−pub trait GearDataAggregator<T: GearData> {
+
−    fn find_processor(&mut self) -> &mut GearDataProcessor<T>;
+
−}