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import scala.reflect.runtime.universe._
import scala.tools.reflect.Eval
object Test extends dotty.runtime.LegacyApp {
reify {
/** Nested methods can use and even update everything
* visible in their scope (including local variables or
* arguments of enclosing methods).
*/
def sort(a: Array[Int]): Unit = {
def swap(i: Int, j: Int): Unit = {
val t = a(i); a(i) = a(j); a(j) = t
}
def sort1(l: Int, r: Int): Unit = {
val pivot = a((l + r) / 2)
var i = l
var j = r
while (i <= j) {
while (a(i) < pivot) i += 1
while (a(j) > pivot) j -= 1
if (i <= j) {
swap(i, j)
i += 1
j -= 1
}
}
if (l < j) sort1(l, j)
if (j < r) sort1(i, r)
}
if (a.length > 0)
sort1(0, a.length - 1)
}
def println(ar: Array[Int]): Unit = {
def print1 = {
def iter(i: Int): String =
ar(i) + (if (i < ar.length-1) "," + iter(i+1) else "")
if (ar.length == 0) "" else iter(0)
}
Console.println("[" + print1 + "]")
}
val ar = Array(6, 2, 8, 5, 1)
println(ar)
sort(ar)
println(ar)
}.eval
}
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