Steven Schäfer
fc013c6b9f
Fixes KT-19853. The CREATOR field is a static field on a Parcelable class which is not visible from Kotlin since the necessary metadata would have to be in a Companion object which may not exist. This commit adds a [parcelableCreator] function to kotlinx.parcelize, which is optimized to a direct field access whenever possible.
46 lines
1.1 KiB
Kotlin
Vendored
46 lines
1.1 KiB
Kotlin
Vendored
// WITH_RUNTIME
|
|
// IGNORE_BACKEND: JVM
|
|
|
|
@file:JvmName("TestKt")
|
|
package test
|
|
|
|
import kotlinx.parcelize.*
|
|
import android.os.Parcel
|
|
import android.os.Parcelable
|
|
|
|
abstract class UserParceler : Parceler<User> {
|
|
override fun User.write(parcel: Parcel, flags: Int) {
|
|
parcel.writeString(name)
|
|
}
|
|
|
|
override fun newArray(size: Int): Array<User> {
|
|
return Array(size + 1) { User(null) }
|
|
}
|
|
}
|
|
|
|
@Parcelize
|
|
class User(val name: String?) : Parcelable {
|
|
companion object : UserParceler() {
|
|
override fun create(parcel: Parcel) = User(parcel.readString())
|
|
}
|
|
}
|
|
|
|
fun box() = parcelTest { parcel ->
|
|
val user = User("John")
|
|
val user2 = User("Joe")
|
|
val array = arrayOf(user, user2)
|
|
parcel.writeTypedArray(array, 0)
|
|
|
|
val bytes = parcel.marshall()
|
|
parcel.unmarshall(bytes, 0, bytes.size)
|
|
parcel.setDataPosition(0)
|
|
|
|
val creator = parcelableCreator<User>()
|
|
val result = parcel.createTypedArray(creator)
|
|
|
|
assert(result.size == 3)
|
|
assert(result[0].name == user.name)
|
|
assert(result[1].name == user2.name)
|
|
assert(result[2].name == null)
|
|
}
|