Mark Punzalan
38 lines
842 B
Kotlin
Vendored
38 lines
842 B
Kotlin
Vendored
// IGNORE_BACKEND_FIR: JVM_IR
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// WITH_RUNTIME
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// FILE: Promise.java
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import org.jetbrains.annotations.NotNull;
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interface Consumer<T> {
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void consume(T t);
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}
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public abstract class Promise<T> {
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@NotNull
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public abstract Promise<T> done(@NotNull Consumer<? super T> done);
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}
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// FILE: 1.kt
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class User {
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fun use(promise: Promise<*>): Promise<*> {
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promise.done { }
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return promise
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}
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}
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fun box(): String {
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var result = ""
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User().use(
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object : Promise<CharSequence>() {
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override fun done(x: Consumer<in CharSequence?>): Promise<CharSequence> {
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result = x.javaClass.genericInterfaces[0].toString()
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return this
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}
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}
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)
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if (result != "Consumer<java.lang.Object>") return "fail: $result"
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return "OK"
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}
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