Abduqodiri Qurbonzoda
46 lines
1.1 KiB
Kotlin
46 lines
1.1 KiB
Kotlin
/*
|
|
* Copyright 2010-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
|
|
* that can be found in the LICENSE file.
|
|
*/
|
|
|
|
@file:OptIn(kotlin.experimental.ExperimentalNativeApi::class)
|
|
|
|
package runtime.memory.weak0
|
|
|
|
import kotlin.test.*
|
|
import kotlin.native.ref.*
|
|
|
|
data class Data(val s: String)
|
|
|
|
fun localWeak(): WeakReference<Data> {
|
|
val x = Data("Hello")
|
|
val weak = WeakReference(x)
|
|
println(weak.get())
|
|
return weak
|
|
}
|
|
|
|
fun multiWeak(): Array<WeakReference<Data>> {
|
|
val x = Data("Hello")
|
|
val weaks = Array(100, { WeakReference(x) } )
|
|
weaks.forEach {
|
|
it -> if (it.get()?.s != "Hello") throw Error("bad reference")
|
|
}
|
|
return weaks
|
|
}
|
|
|
|
@OptIn(kotlin.native.runtime.NativeRuntimeApi::class)
|
|
@Test fun runTest() {
|
|
val weak = localWeak()
|
|
kotlin.native.runtime.GC.collect()
|
|
val value = weak.get()
|
|
println(value?.toString())
|
|
|
|
val weaks = multiWeak()
|
|
|
|
kotlin.native.runtime.GC.collect()
|
|
|
|
weaks.forEach {
|
|
it -> if (it.get()?.s != null) throw Error("not null")
|
|
}
|
|
println("OK")
|
|
} |