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case class Foo(private val x: Int, y: Option[Int], z: Boolean)
object Test extends App {
def foo(x: Foo) = x match {
case Foo(x, Some(y), z) => y
case Foo(x, y, z) => 0
}
val x = Foo(1, Some(2), false)
println(foo(x))
def bar(x: Foo) = x match {
case Foo(x, Some(y), z) => y
case Foo(x, None, z) => 0
}
println(bar(x))
}
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