enum_to_primitive.rs

use num::ToPrimitive;

macro_rules! enum_to_primitive {
    ($name:ident) => {
        impl ToPrimitive for $name {
            fn to_i64(&self) -> Option<i64> {
                return Some(*self as i64);
            }

            fn to_u64(&self) -> Option<u64> {
                return Some(*self as u64);
            }
        }
    }
}