Scala 引用相等

Scala reference equality

提问by Landon Kuhn

How do you test reference equality in Scala?

你如何在 Scala 中测试引用相等性？

val x = new Obj
val y = x
x.referenceEquals(y) // evaluates to true

回答by JAiro

The function you are looking for is eq, which is a member of AnyRef:

您要查找的函数是eq，它是AnyRef的成员：

val x = new Obj
val y = x
x eq y // evaluates to true
x ne y // evaluates to false