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package scala.issues
import org.junit.runner.RunWith
import org.junit.runners.JUnit4
import org.junit.{AfterClass, BeforeClass, Test}
import org.junit.Assert._
import scala.reflect.runtime._
import scala.tools.reflect.ToolBox
import scala.tools.testing.ClearAfterClass
object RunTest {
class VC(val x: Any) extends AnyVal
class VCI(val x: Int) extends AnyVal { override def toString = "" + x }
}
@RunWith(classOf[JUnit4])
class RunTest extends ClearAfterClass {
val toolBox = cached("toolbox", () => universe.runtimeMirror(getClass.getClassLoader).mkToolBox())
def run[T](code: String): T = {
toolBox.eval(toolBox.parse(code)).asInstanceOf[T]
}
@Test
def classOfValueClassAlias(): Unit = {
val code =
"""import scala.issues.RunTest.VC
|type aVC = VC
|type aInt = Int
|type aInteger = Integer
|classOf[VC] == classOf[aVC] &&
| classOf[aInt] == classOf[Int] &&
| classOf[aInteger] == classOf[Integer] &&
| classOf[aInt] != classOf[aInteger]
""".stripMargin
assertTrue(run[Boolean](code))
}
@Test
def classOfFinalVal(): Unit = {
val code =
"""class C {
| final val a1 = classOf[Int]
| final val b1 = classOf[List[_]]
| final val c1 = classOf[List[String]]
| final val d1 = classOf[Array[Int]]
| final val e1 = classOf[Array[List[_]]]
| final val f1 = classOf[Array[_]]
|
| val a2 = classOf[Int]
| val b2 = classOf[List[_]]
| val c2 = classOf[List[String]]
| val d2 = classOf[Array[Int]]
| val e2 = classOf[Array[List[_]]]
| val f2 = classOf[Array[_]]
|
| val listC = Class.forName("scala.collection.immutable.List")
|
| val compare = List(
| (a1, a2, Integer.TYPE),
| (b1, b2, listC),
| (c1, c2, listC),
| (d1, d2, Array(1).getClass),
| (e1, e2, Array(List()).getClass),
| (f1, f2, new Object().getClass))
|}
|(new C).compare
""".stripMargin
type K = Class[_]
val cs = run[List[(K, K, K)]](code)
for ((x, y, z) <- cs) {
assertEquals(x, y)
assertEquals(x, z)
}
}
@Test
def t9702(): Unit = {
val code =
"""import javax.annotation.Resource
|import scala.issues.RunTest.VC
|class C {
| type aList[K] = List[K]
| type aVC = VC
| type aInt = Int
| type aInteger = Integer
| @Resource(`type` = classOf[List[Int]]) def a = 0
| @Resource(`type` = classOf[List[_]]) def b = 0
| @Resource(`type` = classOf[aList[_]]) def c = 0
| @Resource(`type` = classOf[Int]) def d = 0
| @Resource(`type` = classOf[aInt]) def e = 0
| @Resource(`type` = classOf[Integer]) def f = 0
| @Resource(`type` = classOf[aInteger]) def g = 0
| @Resource(`type` = classOf[VC]) def h = 0
| @Resource(`type` = classOf[aVC]) def i = 0
| @Resource(`type` = classOf[Array[Int]]) def j = 0
| @Resource(`type` = classOf[Array[List[_]]]) def k = 0
|}
|val c = classOf[C]
|def typeArg(meth: String) = c.getDeclaredMethod(meth).getDeclaredAnnotation(classOf[Resource]).`type`
|('a' to 'k').toList.map(_.toString).map(typeArg)
""".stripMargin
val l = Class.forName("scala.collection.immutable.List")
val i = Integer.TYPE
val ig = new Integer(1).getClass
val v = new RunTest.VC(1).getClass
val ai = Array(1).getClass
val al = Array(List()).getClass
// sanity checks
assertEquals(i, classOf[Int])
assertNotEquals(i, ig)
assertEquals(run[List[Class[_]]](code),
List(l, l, l, i, i, ig, ig, v, v, ai, al))
}
@Test
def annotationInfoNotErased(): Unit = {
val code =
"""import javax.annotation.Resource
|import scala.annotation.meta.getter
|class C {
| type Rg = Resource @getter
| @(Resource @getter)(`type` = classOf[Int]) def a = 0
| @Rg(`type` = classOf[Int]) def b = 0
|}
|val c = classOf[C]
|def typeArg(meth: String) = c.getDeclaredMethod(meth).getDeclaredAnnotation(classOf[Resource]).`type`
|List("a", "b") map typeArg
|""".stripMargin
val i = Integer.TYPE
assertEquals(run[List[Class[_]]](code), List(i, i))
}
@Test
def invocationReceivers(): Unit = {
import invocationReceiversTestCode._
assertEquals(run[String](definitions("Object") + runCode), "hi" * 9)
assertEquals(run[String](definitions("String") + runCode), "hi" * 9) // bridge method for clone generated
}
@Test
def classOfUnitConstant(): Unit = {
val code =
"""abstract class A { def f: Class[_] }
|class C extends A { final val f = classOf[Unit] }
|val c = new C
|(c.f, (c: A).f)
""".stripMargin
val u = Void.TYPE
assertEquals(run[(Class[_], Class[_])](code), (u, u))
}
@Test
def t9671(): Unit = {
val code =
"""import scala.issues.RunTest.VCI
|
|def f1(a: Any) = "" + a
|def f2(a: AnyVal) = "" + a
|def f3[T](a: T) = "" + a
|def f4(a: Int) = "" + a
|def f5(a: VCI) = "" + a
|def f6(u: Unit) = "" + u
|
|def n1: AnyRef = null
|def n2: Null = null
|def n3: Any = null
|def n4[T]: T = null.asInstanceOf[T]
|
|def npe(s: => String) = try { s; throw new Error() } catch { case _: NullPointerException => "npe" }
|
| f1(null.asInstanceOf[Int]) +
| f1( n1.asInstanceOf[Int]) +
| f1( n2.asInstanceOf[Int]) +
| f1( n3.asInstanceOf[Int]) +
| f1( n4[Int]) + // "null"
|"-" +
| f1(null.asInstanceOf[VCI]) +
|npe(f1( n1.asInstanceOf[VCI])) + // SI-8097
| f1( n2.asInstanceOf[VCI]) +
|npe(f1( n3.asInstanceOf[VCI])) + // SI-8097
| f1( n4[VCI]) + // "null"
|"-" +
| f1(null.asInstanceOf[Unit]) +
| f1( n1.asInstanceOf[Unit]) +
| f1( n2.asInstanceOf[Unit]) +
| f1( n3.asInstanceOf[Unit]) +
| f1( n4[Unit]) + // "null"
|"-" +
| f2(null.asInstanceOf[Int]) +
| f2( n1.asInstanceOf[Int]) +
| f2( n2.asInstanceOf[Int]) +
| f2( n3.asInstanceOf[Int]) +
| f2( n4[Int]) + // "null"
|"-" +
| f2(null.asInstanceOf[VCI]) +
|npe(f2( n1.asInstanceOf[VCI])) + // SI-8097
| f2( n2.asInstanceOf[VCI]) +
|npe(f2( n3.asInstanceOf[VCI])) + // SI-8097
| f2( n4[VCI]) + // "null"
|"-" +
| f2(null.asInstanceOf[Unit]) +
| f2( n1.asInstanceOf[Unit]) +
| f2( n2.asInstanceOf[Unit]) +
| f2( n3.asInstanceOf[Unit]) +
| f2( n4[Unit]) + // "null"
|"-" +
| f3(null.asInstanceOf[Int]) +
| f3( n1.asInstanceOf[Int]) +
| f3( n2.asInstanceOf[Int]) +
| f3( n3.asInstanceOf[Int]) +
| f3( n4[Int]) + // "null"
|"-" +
| f3(null.asInstanceOf[VCI]) +
|npe(f3( n1.asInstanceOf[VCI])) + // SI-8097
| f3( n2.asInstanceOf[VCI]) +
|npe(f3( n3.asInstanceOf[VCI])) + // SI-8097
| f3( n4[VCI]) + // "null"
|"-" +
| f3(null.asInstanceOf[Unit]) +
| f3( n1.asInstanceOf[Unit]) +
| f3( n2.asInstanceOf[Unit]) +
| f3( n3.asInstanceOf[Unit]) +
| f3( n4[Unit]) + // "null"
|"-" +
| f4(null.asInstanceOf[Int]) +
| f4( n1.asInstanceOf[Int]) +
| f4( n2.asInstanceOf[Int]) +
| f4( n3.asInstanceOf[Int]) +
| f4( n4[Int]) +
|"-" +
| f5(null.asInstanceOf[VCI]) +
|npe(f5( n1.asInstanceOf[VCI])) + // SI-8097
| f5( n2.asInstanceOf[VCI]) +
|npe(f5( n3.asInstanceOf[VCI])) + // SI-8097
|npe(f5( n4[VCI])) + // SI-8097
|"-" +
| f6(null.asInstanceOf[Unit]) +
| f6( n1.asInstanceOf[Unit]) +
| f6( n2.asInstanceOf[Unit]) +
| f6( n3.asInstanceOf[Unit]) +
| f6( n4[Unit]) // "null"
""".stripMargin
assertEquals(run[String](code),
"0000null-0npe0npenull-()()()()null-0000null-0npe0npenull-()()()()null-0000null-0npe0npenull-()()()()null-00000-0npe0npenpe-()()()()null")
}
}
|
