polymorphic_enum 0.1.5

Automatically wrap enum variant data in a struct. Implement a given trait for the enum that delegates to the structs. Also implement From and To to convert between the enum and the structs.
Documentation 
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use polymorphic_enum::polymorphic_enum;

polymorphic_enum!(
    trait Move {
        fn execute(&self);
        fn valid_for_state(&self, state: u8) -> bool;
    }

    #[derive(Debug, Clone)]
    enum Moves {
        Attack { enemy_id: u32 },
        Defend,
    }
);

impl Move for Attack {
    fn execute(&self) {
        println!("Attack!");
    }

    fn valid_for_state(&self, state: u8) -> bool {
        state == 0
    }
}

impl Move for Defend {
    fn execute(&self) {
        println!("Defend!");
    }

    fn valid_for_state(&self, state: u8) -> bool {
        state == 1
    }
}

#[test]
fn test_macro() {
    // Create a list of Moves
    let moves: Vec<Moves> = vec![Attack { enemy_id: 1 }.into(), Defend.into()];

    for m in moves {
        m.execute(); // Prints "Attack!" and "Defend!"
    }
}