If you need instances, that sounds more like sealed classes than enums

# getting-started

[Shawn]

If you need instances, that sounds more like sealed classes than enums

[nestserau]

I don’t need instances per se, but that’s how enum entries are represented in Kotlin anyhow.

[Shawn]

I’m kinda just asking for my own benefit at this point, but I’m curious what the use case is for an interface that mandates classes themselves provide a method but not the class instances

[Shawn]

assuming I’m interpreting the problem correctly - that you want, for example, your own DayOfWeek enum to have a fromInt() method on it

[Shawn]

like do you plan on operating on collections of these types? List<HasFromInt> or something similar?

[karelpeeters]

It's pretty easy to write function like this btw, just have a parameter in the enum constructor and then in the companion object fun fromInt(int: Int) = MyEnum.values.first { it.day == int }

[karelpeeters]

But that's not generic of course.

[nestserau]

@Shawn This is correct.