Kotlin的单例线程安全吗? [英] Are Kotlin's singletons thread safe?

问题描述

Kotlin单例(更具体地讲，对象声明)是否在构造上是线程安全的?如果没有，那么在Kotlin中编写线程安全单例的最佳实践是什么?

Are Kotlin singletons (more specifically, object declarations) thread-safe by construction? If not, what is the best practice to write thread safe singletons in Kotlin?

我想是的，但是我在文档中找不到任何明确的声明.

I would guess they are, but I haven't been able to find any explicit statement about it in the docs.

推荐答案

科特林的对象"在构造上是线程安全的.您可以在任何反编译/转储工具中看到，声明的对象只是具有静态实例初始化和语言语法糖的最终类，从而简化了实例访问

Kotlin "object" is thread-safe by construction. As you can see in any decompile/dumping tool, declared object is just final class with static instance initialization + language syntax sugar to simplify instance access

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