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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2010, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
/** `Nothing` is - together with [[scala.Null]] - at the bottom of Scala's type hierarchy.
*
* `Nothing` is a subtype of every other type (including [[scala.Null]]); there exist
* ''no instances'' of this type. Although type `Nothing` is uninhabited, it is
* nevertheless useful in several ways. For instance, the Scala library defines a value
* [[scala.collection.immutable.Nil]] of type `List[Nothing]`. Because lists are covariant in Scala,
* this makes [[scala.collection.immutable.Nil]] an instance of `List[T]`, for any element of type `T`.
*
* Another usage for Nothing is the return type for methods which never return normally.
* One example is method error in [[scala.sys]], which always throws an exception.
*/
sealed trait Nothing
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