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doorbash/kotlin_get_java_generic_class.kt

Last active September 18, 2020 21:32
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kotlin_get_java_generic_class.kt
import kotlin.reflect.jvm.jvmErasure
import kotlin.reflect.typeOf
class Y
class X<T>
@OptIn(ExperimentalStdlibApi::class)
inline fun <reified T> T.getGenericType(): Class<Any>? = typeOf<T>().arguments[0].type?.jvmErasure?.java as Class<Any>?
fun main() {
println(X<Float>().getGenericType())
println(X<Y>().getGenericType())
}
/*
float
float
class Y
class Y
*/
@doorbash
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implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"

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