Hi, is there any library or a way to use Kotlinx Serialization with a serializer that converts the M...

# compose-desktop

[Ayfri]

Hi, is there any library or a way to use Kotlinx Serialization with a serializer that converts the MutableStates to their values (same with lists/maps) ?

[Dominaezzz]

Probably. Can you provide an example class you want to serialize?

[Ayfri]

interface Template {
    @Composable
    fun Content()
}
 
abstract class VanillaCraft : Template

class ItemTemplate : VanillaTemplate() {
	val id = mutableStateOf("")
	val tag = mutableStateOf("")

    override fun Content() { /* ... */ }
}

[Dominaezzz]

Yes you can annonate ItemTemplate with @Serializable and annotate id and tag with a small custom serializer to do the wrap/unwrap for you.

[Ayfri]

But I have a small problem, I have this :

@Serializable
abstract class CookingRecipeSingle(
   type: RecipeType,
) : RecipeTemplate() {
   @SerialName("cookingtime")
   val cookingTime = mutableStateOf(0)
   val experience = mutableStateOf(0.0)
   val group = mutableStateOf("")
   val ingredient = mutableStateOf(ItemTemplate())
   val result = mutableStateOf("")
   
   init {
      this.type.value = type
   }

    override fun Content() { /* ... */ }
}

This class is used by multiple other classes
RecipeType is an enum
Exemple :

@Serializable
class BlastingRecipeSingleTemplate : CookingRecipeSingle(RecipeType.BLASTING) {
	init {
		cookingTime.value = 100
	}
}

but the @Serializable annotation doesn't work as it gives me this error

This class is not serializable automatically because it has primary constructor parameters that are not properties

So how can I do ?

[Dominaezzz]

Do you really need it as a ctor parameter?

[Dominaezzz]

You could make it an abstract property no?

[Ayfri]

Ah yes you're right, it should work then