Kotlin 委托(delegate)与 `by` 但创建委托(delegate) *inside* 委托(delegate)

Question

我想使用 Kotlin 委托(delegate)，但我不想在委托(delegate)人之外创建委托(delegate)。委托(delegate)的所有示例都如下所示:

interface Worker {
    fun doWork()
}

class Supervisor(workerDelegate: Worker) : Worker by workerDelegate {
}

class Delegate : Worker {
    override fun doWork() {
        // actual work
    }
}

fun main() {
    val delegate = Delegate()
    val supervisor = Supervisor(delegate)
    supervisor.doWork() // delegates to delegate
}

但我想创建 Delegate里面 Supervisor .像这样的东西:

class Supervisor : Worker by workerDelegate {
    init {
        val workerDelegate = Delegate()
    }
}

这样的事情可能吗？

Answer 1

我想你想要的是这样的:

class Supervisor : Worker by Delegate(){
    
}