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// final case class NonZeroLong(value: Long) extends AnyVal {
// def get: Long = value
// def isEmpty: Boolean = get == 0l
// }
class NonZeroLong(val value: Long) extends AnyVal {
def get: Long = value
def isEmpty: Boolean = get == 0l
}
object NonZeroLong {
def unapply(value: Long): NonZeroLong = new NonZeroLong(value)
}
object Foo {
def unapply(x: Int): NonZeroLong = new NonZeroLong(1L << x)
// public long unapply(int);
// 0: lconst_1
// 1: iload_1
// 2: lshl
// 3: lreturn
}
object Test {
def f(x: Int): Int = x match {
case Foo(1024l) => 1
case _ => 2
}
def main(args: Array[String]): Unit = {
println(f(10))
println(f(11))
}
}
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