use crate::generic::{Field, Generic, Sum};

impl<A, B> Generic for (A, B) {
    type Representation = Sum<Field<A>, Field<B>>;

    fn generalize(self) -> Self::Representation {
        let (l, r) = self;
        Sum {
            left: Field { value: l },
            right: Field { value: r }
        }
    }

    fn specialize(rep: Self::Representation) -> Self {
        let Sum {
            left: Field { value: a },
            right: Field { value: b },
        } = rep;
        (a, b)
    }
}