sidecast

Dynamic cast between trait objects.

Example

trait Card: SideCast {}

impl_sidecast!(dyn Card);

trait MinionCard: Card {}
trait SpellCard: Card {}

struct MyMinionCard {}

impl Card for MyMinionCard {}
impl MinionCard for MyMinionCard {}

impl_sidecast!(MyMinionCard => (dyn Display, dyn MinionCard, dyn Serialize));

struct MyGenericCard<T: Card> {}

impl_sidecast!([T: Card] MyGenericCard[T] => (dyn Display, dyn MinionCard, dyn Serialize));