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// Test cases: the only place we can cut and paste without crying
// ourself to sleep.
object Test {
def f1(a: Any) = a match {
case x: Array[Int] => x(0)
case x: Array[Double] => 2
case x: Array[Float] => x.sum.toInt
case x: Array[String] => x.size
case x: Array[AnyRef] => 5
case x: Array[_] => 6
case _ => 7
}
def f2(a: Array[_]) = a match {
case x: Array[Int] => x(0)
case x: Array[Double] => 2
case x: Array[Float] => x.sum.toInt
case x: Array[String] => x.size
case x: Array[AnyRef] => 5
case x: Array[_] => 6
case _ => 7
}
def f3[T](a: Array[T]) = a match {
case x: Array[Int] => x(0)
case x: Array[Double] => 2
case x: Array[Float] => x.sum.toInt
case x: Array[String] => x.size
case x: Array[AnyRef] => 5
case x: Array[_] => 6
case _ => 7
}
def main(args: Array[String]): Unit = {
println(f1(Array(1, 2, 3)))
println(f1(Array(1.0, -2.0, 3.0, 1.0)))
println(f1(Array(1.0f, 2.0f, 3.0f, -3.0f)))
println(f1((1 to 4).toArray map (_.toString)))
println(f1(new Array[Any](10))) // should match as Array[AnyRef]
println(f1(Array(1L)))
println(f1(null))
println(f2(Array(1, 2, 3)))
println(f2(Array(1.0, -2.0, 3.0, 1.0)))
println(f2(Array(1.0f, 2.0f, 3.0f, -3.0f)))
println(f2((1 to 4).toArray map (_.toString)))
println(f2(new Array[Any](10))) // should match as Array[AnyRef]
println(f2(Array(1L)))
println(f2(null))
println(f3(Array(1, 2, 3)))
println(f3(Array(1.0, -2.0, 3.0, 1.0)))
println(f3(Array(1.0f, 2.0f, 3.0f, -3.0f)))
println(f3((1 to 4).toArray map (_.toString)))
println(f3(new Array[Any](10))) // should match as Array[AnyRef]
println(f3(Array(1L)))
println(f3(null))
}
}
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