ARCore在语义上是否等同于ARKit的“ guard let planeAnchor”？

Question

我想知道ARCore / Kotlin中是否有类似的语义结构，例如guard let / ARKit中的以下Swift语句？

let anchor: ARAnchor?

guard let planeAnchor = anchor as? ARPlaneAnchor else { 
    print("condition not met")
    return 
}

Answer 1

我认为我已经找到 Elvis运算符和安全类型转换运算符的ARCore planeAnchor的必需语义：

public class CenterPosePlaneAnchor { ... }

val anchor: Anchor?
val info = "condition not met"

val planeAnchor = anchor as? CenterPosePlaneAnchor ?: return println(info)