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class A {
def test1(): Unit = {
implicitly[this.type <:< this.type]
implicitly[this.type <:< A]
}
}
object test {
def tag1[T](x: T): String & T = ???
def tag2[T](x: T): T & String = ???
val x1: Int & String = tag1(0)
val x2: Int & String = tag2(0)
val x3: String & Int = tag1(0)
val x4: String & Int = tag2(0)
}
object test2 {
class A
class B
val x: A | B = ???
val y: B | A = x
val a: A & B = ???
val b: B & A = a
}
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