hi all does hoplite support polymorphic types sum type reall kotlinlang #hoplite

sealed interface Lamp {
    object StandardLamp: Lamp
    data class SpecialLamp(val brightness: Int): Lamp
}

data class Config(
    val lamp: Lamp = Lamp.StandardLamp
)

i can do that with kotlinx.serialization.hocon (though must be a sealed class rather) .. it needs a type hint in the HOCON

oops, missed it the first time round: https://github.com/sksamuel/hoplite#sealed-classes

sam

12/06/2021, 7:33 PM

Yep, sealed classes and interfaces

🙌 1

You might run into some edge cases if the fields align

Peter

12/06/2021, 7:34 PM

based on field types?

sam

12/06/2021, 7:34 PM

sealed interface Foo {
    data class Bar1(val a: String): Foo
    data class Bar2(val a: String): Foo
}

Peter

12/06/2021, 7:34 PM

👍

good to know

sam

12/06/2021, 7:34 PM

Like that, super edge case-y but the system wouldn't know which to pick in that case

Peter

12/06/2021, 7:35 PM

are you opposed to a type hint in the serialized format?

sam

12/06/2021, 7:35 PM

Not opposed, if there's a use case for it

👍 1

Peter

12/06/2021, 8:36 PM

doesn’t look like it supports

object

s unfortunately 😞

ie 0 fields

sam

12/06/2021, 8:45 PM

how would it do that, the absense of any values ?

Peter

12/06/2021, 8:47 PM

maybe?

{
  lamp = { }
}

i haven’t looked at how it works internally

sam

12/06/2021, 8:47 PM

That might work for json stuff yeah

sounds like it would be fairly easy to do

Peter

12/06/2021, 8:48 PM

😅

sam

12/07/2021, 12:04 PM

1.4.16 is syncing to Maven now.

https://github.com/sksamuel/hoplite#objects-in-sealed-classes

Peter

12/07/2021, 2:40 PM

awesome, thank you!! 🙌

sam

12/07/2021, 2:43 PM

Let me know if you have an issues

Peter

12/07/2021, 3:48 PM

works great - thanks again! 🙏

👍🏻 1

Jim

12/18/2021, 6:33 PM

Oh this is nice, I had to use a wrapper config class with the object as the default value

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