Unions

Unions can be declared through the use of the union keyword.

An example usage of unions in Scar is as follows:

pub union SomeUnion
    Token(i32)
    MultiPayload(i32, i32, f64)
    StringPair(ref(u8), ref(u8))
end

pub def main()
    var u = SomeUnion.Token(123)
    var v = SomeUnion.StringPair("a", "b")

    match v
        Token (x) => (
            @print("{d}", {x})
        )
        MultiPayload (_, _, _) => (
            @puts("it was a multipayload")
        )
        StringPair (str, str2) => (
            @print("{s} {s}", {str, str2})
        )
    end
end