Say your app supports flag --describe that would make it to do whatever it was doing before, but also to describe the computation, it might be possible to have --detailed flag that makes description detailed. It doesn't make sense to specify --detailed without --describe, but naive implementation would result in a less clear error message
struct Describe {
describe: (),
detailed: bool,
}Currently you can make a better error message with guard and Describe containing two bools...
Say your app supports flag
--describethat would make it to do whatever it was doing before, but also to describe the computation, it might be possible to have--detailedflag that makes description detailed. It doesn't make sense to specify--detailedwithout--describe, but naive implementation would result in a less clear error messageCurrently you can make a better error message with
guardandDescribecontaining two bools...