我在Kotlin中有以下数据类：

data class Test(
    val one: Int?,
    val two: Int?,
    val three: Three?,
){
    
    data class Three(
        val four: Int?,
        val five: Five?,
    ){
        
        data class Five(
            val six: Int?,
            val seven: Int?,
        )
    }
}

和一个变量来存储这个类的示例：

val cache: Test = Test()

我有另一个函数，它返回“Test”的示例，只设置了一些属性。

fun onValueUpdated(newValue: Test){
    // i need to update the value of "cache" here if
    // any of the properties in "newValue" is not null.
    // Eg: if newValue = Test( two = 2 )
    // i need to update "cache" as cache?.two = 2 without affecting other values in cache.
}

有没有基于反射的方法，根据“newValue”更新“cache”中的值，而不是手动更新每个值？.

fun updateCache(newValue: Test, cache: Test){
    //......
    // copy all non-null values from "newValue" to cache (including nested ones)
    // 
}