Kotlin Lazyを読む - Continuity is The Father of Success

IOSchedのコードを読んでいたら、ちょっと気になるExtensionを見つけました。 github.com /** * Implementation of lazy that is not thread safe. Useful when you know what thread you will be * executing on and are not worried about synchronization. */ fun <T> lazyFast(operation: () -> T): Lazy<T> = lazy(LazyThreadSafetyMode.NONE) { operation() } iosched/Extensions.kt at master · google/iosched · GitHub lazy ってThread Safeだったの？？？ Lazy