finit 0.4.0

Finit is a library for defining sets of data, and then performing set operations on them. It is designed to be used for permission systems, but can be used for any kind of data that can be represented as a set.
Documentation 
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use crate::Set;
use crate::operations::{
    Difference, DifferenceAssign, DisjunctiveUnion, DisjunctiveUnionAssign, Intersection,
    IntersectionAssign, Union, UnionAssign,
};

//Set with a single value.
impl Set for bool {
    type Empty = Self;

    fn is_empty(&self) -> bool {
        !self
    }

    fn empty() -> Self::Empty {
        false
    }
}

impl Set for &bool {
    type Empty = bool;

    fn is_empty(&self) -> bool {
        (**self).is_empty()
    }

    fn empty() -> Self::Empty {
        bool::empty()
    }
}

impl Set for &mut bool {
    type Empty = bool;

    fn is_empty(&self) -> bool {
        (**self).is_empty()
    }

    fn empty() -> Self::Empty {
        bool::empty()
    }
}

impl Union<bool> for bool {
    type Output = bool;

    fn union(self, rhs: bool) -> Self::Output {
        self || rhs
    }
}

impl Union<&bool> for bool {
    type Output = bool;

    fn union(self, rhs: &bool) -> Self::Output {
        self.union(*rhs)
    }
}

impl UnionAssign<bool> for bool {
    fn union_assign(&mut self, rhs: bool) {
        *self = self.union(rhs);
    }
}

impl UnionAssign<&bool> for bool {
    fn union_assign(&mut self, rhs: &bool) {
        *self = self.union(*rhs);
    }
}

impl Difference<bool> for bool {
    type Output = bool;

    fn difference(self, rhs: bool) -> Self::Output {
        if rhs { false } else { self }
    }
}

impl Difference<&bool> for bool {
    type Output = bool;

    fn difference(self, rhs: &bool) -> Self::Output {
        self.difference(*rhs)
    }
}

impl DifferenceAssign<bool> for bool {
    fn difference_assign(&mut self, rhs: bool) {
        *self = self.difference(rhs);
    }
}

impl DifferenceAssign<&bool> for bool {
    fn difference_assign(&mut self, rhs: &bool) {
        *self = self.difference(*rhs);
    }
}

impl Intersection<bool> for bool {
    type Output = bool;

    fn intersection(self, rhs: bool) -> Self::Output {
        self && rhs
    }
}

impl Intersection<&bool> for bool {
    type Output = bool;

    fn intersection(self, rhs: &bool) -> Self::Output {
        self.intersection(*rhs)
    }
}

impl IntersectionAssign<bool> for bool {
    fn intersection_assign(&mut self, rhs: bool) {
        *self = self.intersection(rhs);
    }
}

impl IntersectionAssign<&bool> for bool {
    fn intersection_assign(&mut self, rhs: &bool) {
        *self = self.intersection(*rhs);
    }
}

impl DisjunctiveUnion<bool> for bool {
    type Output = bool;

    fn disjunctive_union(self, rhs: bool) -> Self::Output {
        self ^ rhs
    }
}

impl DisjunctiveUnion<&bool> for bool {
    type Output = bool;

    fn disjunctive_union(self, rhs: &bool) -> Self::Output {
        self.disjunctive_union(*rhs)
    }
}

impl DisjunctiveUnionAssign<bool> for bool {
    fn disjunctive_union_assign(&mut self, rhs: bool) {
        *self = self.disjunctive_union(rhs);
    }
}

impl DisjunctiveUnionAssign<&bool> for bool {
    fn disjunctive_union_assign(&mut self, rhs: &bool) {
        *self = self.disjunctive_union(*rhs);
    }
}

crate::set_eq_partial_eq_impl!(bool);

crate::subset_of_intersection_identity_impl!(bool);

#[cfg(test)]
mod tests {
    use rstest::*;

    #[allow(unused_imports)]
    use super::*;

    #[rstest]
    #[case(true, true, true)]
    #[case(false, true, true)]
    #[case(true, false, true)]
    #[case(false, false, false)]
    fn union_tests(#[case] val1: bool, #[case] val2: bool, #[case] result: bool) {
        assert_eq!(val1.union(val2), result);
    }

    #[rstest]
    #[case(true, true, false)]
    #[case(false, true, false)]
    #[case(true, false, true)]
    #[case(false, false, false)]
    fn difference_tests(#[case] val1: bool, #[case] val2: bool, #[case] result: bool) {
        assert_eq!(val1.difference(val2), result);
    }

    #[rstest]
    #[case(true, true, true)]
    #[case(false, true, false)]
    #[case(true, false, false)]
    #[case(false, false, false)]
    fn intersection_tests(#[case] val1: bool, #[case] val2: bool, #[case] result: bool) {
        assert_eq!(val1.intersection(val2), result);
    }

    #[rstest]
    #[case(true, true, false)]
    #[case(false, true, true)]
    #[case(true, false, true)]
    #[case(false, false, false)]
    fn disjunctive_union_tests(#[case] val1: bool, #[case] val2: bool, #[case] result: bool) {
        assert_eq!(val1.disjunctive_union(val2), result);
    }
}