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import scala.tools.nsc.reporters._
import scala.tools.nsc.Settings
import reflect.runtime.Mirror.ToolBox
object Test extends App {
var q = 0
var clo: Int => Int = null
def foo[T](ys: List[T]): Int => Int = {
val z = 1
var y = 0
val fun = reflect.Code.lift{(x: Int) => {
y += 1
q += 1
println("q = " + q)
println("y = " + y)
x + ys.length * z + q + y
}}
if (clo == null) {
val reporter = new ConsoleReporter(new Settings)
val toolbox = new ToolBox(reporter)
val ttree = toolbox.typeCheck(fun.tree)
val dyn = toolbox.runExpr(ttree)
clo = dyn.asInstanceOf[Int => Int]
}
clo
}
println("first invocation = " + foo(List(1, 2, 3))(10))
println("second invocation = " + foo(List(1, 2, 3, 4))(10))
}
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