guide/example/example-serializer-10.kt

// This file was automatically generated from serializers.md by Knit tool. Do not edit.
package example.exampleSerializer10

import kotlinx.serialization.*
import kotlinx.serialization.json.*
import kotlinx.serialization.encoding.*
import kotlinx.serialization.descriptors.*

import kotlinx.serialization.builtins.IntArraySerializer

class ColorIntArraySerializer : KSerializer<Color> {
    private val delegateSerializer = IntArraySerializer()
    override val descriptor = SerialDescriptor("Color", delegateSerializer.descriptor)

    override fun serialize(encoder: Encoder, value: Color) {
        val data = intArrayOf(
            (value.rgb shr 16) and 0xFF,
            (value.rgb shr 8) and 0xFF,
            value.rgb and 0xFF
        )
        encoder.encodeSerializableValue(delegateSerializer, data)
    }

    override fun deserialize(decoder: Decoder): Color {
        val array = decoder.decodeSerializableValue(delegateSerializer)
        return Color((array[0] shl 16) or (array[1] shl 8) or array[2])
    }
}

@Serializable(with = ColorIntArraySerializer::class)
class Color(val rgb: Int)

fun main() {
    val green = Color(0x00ff00)
    println(Json.encodeToString(green))
}