pyos
27c51f5f88
This is what Java 15+ does, and it permits accessing captured type parameters via reflection. The alternative is to emit generic signatures on the lambda methods, but that was disabled and I have no clue why. ^KT-52417 Fixed
29 lines
652 B
Kotlin
Vendored
29 lines
652 B
Kotlin
Vendored
// TARGET_BACKEND: JVM
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// WITH_RUNTIME
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// WITH_STDLIB
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// FILE: 1.kt
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package test
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abstract class TypeToken<U>
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// Although V is not reified, if the object happens to be regenerated, V will be replaced with its value in signatures
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inline fun <V> typeTokenOf(crossinline forceRegeneration: () -> Unit = {}) =
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object : TypeToken<V>() {
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fun unused() = forceRegeneration()
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}
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// FILE: 2.kt
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import test.*
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fun interface I {
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fun foo(): String
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}
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fun <T> foo() =
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I {
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typeTokenOf<T>()::class.java.genericSuperclass.toString()
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}.foo()
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fun box(): String =
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foo<String>().let { if (it == "test.TypeToken<T>") "OK" else it }
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