use hsmc::statechart; #[derive(Debug, Clone)] pub enum Ev { _U } pub struct Ctx; statechart! { M { context: Ctx; events: Ev; default(Parent); state Parent { default(A); default(B); state A { entry: e; } state B { entry: e; } } } } impl MActions for MActionContext<'_> { fn e(&mut self) {} } fn main() {}