Can't parse simple toml with List

[chabapok]

I have the next code:

import com.akuleshov7.ktoml.Toml
import kotlinx.serialization.Serializable
import kotlinx.serialization.encodeToString
import kotlinx.serialization.serializer

@Serializable
data class Foo(val x: List<Bar>)

@Serializable
data class Bar(val v: Int)

fun main(){
    val foo = Foo(arrayListOf( Bar(42)))
    val s = Toml().encodeToString(foo)
    println(s)


    val fooDeserialized = Toml().decodeFromString<Foo>(serializer(), s)

}

So when i run this, it produce next toml:

[[x]]
    v = 42

And then, decoding throws error:

Exception in thread "main" com.akuleshov7.ktoml.exceptions.InternalDecodingException: Incorrect decoding state in the beginStructure() with [[x]] ([[x]])[x] It's an internal error - you can do nothing with it, please report it to https://github.com/akuleshov7/ktoml/
	at com.akuleshov7.ktoml.decoders.TomlMainDecoder.iterateOverStructure(TomlMainDecoder.kt:246)
	at com.akuleshov7.ktoml.decoders.TomlMainDecoder.beginStructure(TomlMainDecoder.kt:212)
	at kotlinx.serialization.internal.AbstractCollectionSerializer.merge(CollectionSerializers.kt:29)
	at kotlinx.serialization.internal.AbstractCollectionSerializer.deserialize(CollectionSerializers.kt:43)
	at kotlinx.serialization.encoding.Decoder$DefaultImpls.decodeSerializableValue(Decoding.kt:257)
	at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:16)
	at com.akuleshov7.ktoml.decoders.TomlAbstractDecoder.decodeSerializableValue(TomlAbstractDecoder.kt:96)
	at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:43)
	at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableElement(AbstractDecoder.kt:70)
	at Foo$$serializer.deserialize(tomlProb.kt:6)
	at Foo$$serializer.deserialize(tomlProb.kt:6)
	at kotlinx.serialization.encoding.Decoder$DefaultImpls.decodeSerializableValue(Decoding.kt:257)
	at kotlinx.serialization.encoding.AbstractDecoder.decodeSerializableValue(AbstractDecoder.kt:16)
	at com.akuleshov7.ktoml.decoders.TomlAbstractDecoder.decodeSerializableValue(TomlAbstractDecoder.kt:96)
	at com.akuleshov7.ktoml.decoders.TomlMainDecoder$Companion.decode(TomlMainDecoder.kt:276)
	at com.akuleshov7.ktoml.Toml.decodeFromString(Toml.kt:47)
	at TomlProbKt.main(tomlProb.kt:18)
	at TomlProbKt.main(tomlProb.kt)

[Andrey Kuleshov]

Hello! Thank you for your report.
Thing that you are trying to decode looks to be not a simple array, it is an array of tables. Which is not supported.

Please note that primitive arrays/lists are actually supported:

val str = “””
[table]
   a = [1, 2, 3]
“””

[Andrey Kuleshov]

#88