diff options
Diffstat (limited to 'src/library/scala/reflect/ClassTag.scala')
| -rw-r--r-- | src/library/scala/reflect/ClassTag.scala | 25 |
1 files changed, 6 insertions, 19 deletions
diff --git a/src/library/scala/reflect/ClassTag.scala b/src/library/scala/reflect/ClassTag.scala index 9dd96183da..30ceadceeb 100644 --- a/src/library/scala/reflect/ClassTag.scala +++ b/src/library/scala/reflect/ClassTag.scala @@ -2,7 +2,6 @@ package scala package reflect import java.lang.{ Class => jClass } -import scala.runtime.ScalaRunTime.arrayElementClass /** * @@ -84,28 +83,13 @@ trait ClassTag[T] extends ClassManifestDeprecatedApis[T] with Equals with Serial ) Some(x.asInstanceOf[T]) else None - // TODO: deprecate overloads in 2.12.0, remove in 2.13.0 - def unapply(x: Byte) : Option[T] = unapplyImpl(x, classOf[Byte]) - def unapply(x: Short) : Option[T] = unapplyImpl(x, classOf[Short]) - def unapply(x: Char) : Option[T] = unapplyImpl(x, classOf[Char]) - def unapply(x: Int) : Option[T] = unapplyImpl(x, classOf[Int]) - def unapply(x: Long) : Option[T] = unapplyImpl(x, classOf[Long]) - def unapply(x: Float) : Option[T] = unapplyImpl(x, classOf[Float]) - def unapply(x: Double) : Option[T] = unapplyImpl(x, classOf[Double]) - def unapply(x: Boolean) : Option[T] = unapplyImpl(x, classOf[Boolean]) - def unapply(x: Unit) : Option[T] = unapplyImpl(x, classOf[Unit]) - - private[this] def unapplyImpl(x: Any, primitiveCls: java.lang.Class[_]): Option[T] = - if (runtimeClass.isInstance(x) || runtimeClass.isAssignableFrom(primitiveCls)) Some(x.asInstanceOf[T]) - else None - // case class accessories override def canEqual(x: Any) = x.isInstanceOf[ClassTag[_]] override def equals(x: Any) = x.isInstanceOf[ClassTag[_]] && this.runtimeClass == x.asInstanceOf[ClassTag[_]].runtimeClass - override def hashCode = scala.runtime.ScalaRunTime.hash(runtimeClass) + override def hashCode = runtimeClass.## override def toString = { def prettyprint(clazz: jClass[_]): String = - if (clazz.isArray) s"Array[${prettyprint(arrayElementClass(clazz))}]" else + if (clazz.isArray) s"Array[${prettyprint(clazz.getComponentType)}]" else clazz.getName prettyprint(runtimeClass) } @@ -135,6 +119,9 @@ object ClassTag { val Nothing : ClassTag[scala.Nothing] = Manifest.Nothing val Null : ClassTag[scala.Null] = Manifest.Null + @SerialVersionUID(1L) + private class GenericClassTag[T](val runtimeClass: jClass[_]) extends ClassTag[T] + def apply[T](runtimeClass1: jClass[_]): ClassTag[T] = runtimeClass1 match { case java.lang.Byte.TYPE => ClassTag.Byte.asInstanceOf[ClassTag[T]] @@ -149,7 +136,7 @@ object ClassTag { case ObjectTYPE => ClassTag.Object.asInstanceOf[ClassTag[T]] case NothingTYPE => ClassTag.Nothing.asInstanceOf[ClassTag[T]] case NullTYPE => ClassTag.Null.asInstanceOf[ClassTag[T]] - case _ => new ClassTag[T]{ def runtimeClass = runtimeClass1 } + case _ => new GenericClassTag[T](runtimeClass1) } def unapply[T](ctag: ClassTag[T]): Option[Class[_]] = Some(ctag.runtimeClass) |