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import runtime.ScalaRunTime._
class Generic[T](a: Array[T]) {
def apply() = a(0)
}
class Spec[@specialized(AnyRef) T](a: Array[T]) {
def apply() = a(0)
}
object Test {
def main(args: Array[String]) {
val len = 50
testSpec(new Array[String](len))
println(arrayApplyCount)
(new Spec(new Array[String](len)))()
println(arrayApplyCount)
testGeneric(new Array[String](len))
println(arrayApplyCount)
(new Generic(new Array[String](len)))()
println(arrayApplyCount)
}
def testGeneric[T](a: Array[T]) = {
var i = 0
var sum = 0
while (i < a.length) {
sum += (if (a(i) != null) 1 else 0)
i += 1
}
sum
}
def testSpec[@specialized(AnyRef) T](a: Array[T]) = {
var i = 0
var sum = 0
while (i < a.length) {
sum += (if (a(i) != null) 1 else 0)
i += 1
}
sum
}
}
|
