Hey guys, is it possible to use kotlinx serialization on Android without providing proguard rules in...

# serialization

[FunkyMuse]

Hey guys, is it possible to use kotlinx serialization on Android without providing proguard rules in release mode?
Something that moshi has with codegen

[ephemient]

as long as you avoid functions that look up the serializer at runtime (e.g. inline fun <reified T> encodeToString(value: T)) and stick to encodeToString(MyClass.serializer(), value) it should already work without ProGuard rules

[ephemient]

if everything is referenced statically in code, ProGuard can't remove them and it doesn't matter if they're renamed

[ephemient]

ideally the reified helpers wouldn't rely on reflection, but that requires further compiler work. https://github.com/Kotlin/kotlinx.serialization/issues/1348

[FunkyMuse]

@Serializable
data class MetaModel(
    @SerialName("current_page")
    val currentPage: Int?,
    @SerialName("last_page")
    val lastPage: Int?,
    @SerialName("per_page")
    val perPage: String?,
    @SerialName("total")
    val total: Int?
)

I do it like this all the time, all my classes are annotated with serial names and serializable, but still it fails without proguard rule, is there a way to somehow circumvent adding proguard rules for this way?

[ephemient]

what fails, exactly?

[FunkyMuse]

Unable to create converter for class, works perfectly without proguard tho

[ephemient]

how are you creating the converter?

[ephemient]

if you're writing MetaModel.serializer() it should work. if you're relying on anything doing reflection to obtain the serializer, you will need proguard rules.

[FunkyMuse]

I'm using retrofit and using Jake's converter, basically I'm not adding anything anywhere, should i be?

Sorry for the noob questions, I'm still exploring how this library works

[ephemient]

that relies on serializersModule.serializer(type) to get the serializer, so it's effectively reflecting at runtime

[ephemient]

there's not much to it though, you could easily copy and fork it to have static references to your own types, or come up with your own way to register serializers that doesn't use reflection

SerializerConverterFactory_kt.cpp