_test.zr

// This:
/*enum Animals {
    Dog,
    Cat,
    Fox,
}*/

// Same as:
let Animals = .{
    Dog: null "__base_enum;__enum_variant=\"7d500443-ffa5-4383-bb65-4f5ed5f154c3\"",
    Cat: null "__base_enum;__enum_variant=\"b3cb1678-5c59-4218-8ace-bb02c24ea989\"",
    Fox: null "__base_enum;__enum_variant=\"fd41c2c6-4966-42fb-a7c4-ddb7e3bd6e60\"",
};

// This would work by the call handler function checking if Animals.Dog contains the "__base_enum" tag
// This would mean you can't do it with derived values like dog("John")
let dog = Animals.Dog("John");

// Dog internally looks like:
// Value: "John"
// Tags: { __enum_variant:"7d500443-ffa5-4383-bb65-4f5ed5f154c3" }

// This:
if dog == Animals.Dog {

}

// Same as:
if dog.__tags.__enum_variant == Animals.Dog.__tags.__enum_variant {

}

// The above would work by checking if it has an __enum_variant tag available