org.jetbrains.kotlin.analysis.api.fir.utils.ThreadLocalDelegate.kt Maven / Gradle / Ivy
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Annotation Processor for Kotlin
/*
* Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
* Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
*/
package org.jetbrains.kotlin.analysis.api.fir.utils
import java.util.concurrent.ConcurrentHashMap
import kotlin.reflect.KProperty
internal class ThreadLocalValue(private val init: () -> V) {
private val map = ConcurrentHashMap()
@Suppress("NOTHING_TO_INLINE")
inline operator fun getValue(thisRef: Any?, property: KProperty<*>): V =
map.computeIfAbsent(Thread.currentThread().id) {
init()
}
}
internal fun threadLocal(init: () -> V): ThreadLocalValue =
ThreadLocalValue(init)