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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2006-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.annotation
/** A marker for annotations that, when applied to a type, should be treated
* as a constraint on the annotated type.
*
* A proper constraint should restrict the type based only on information
* mentioned within the type. A Scala compiler can use this assumption to
* rewrite the contents of the constraint as necessary. To contrast, a type
* annotation whose meaning depends on the context where it is written
* down is not a proper constrained type, and this marker should not be
* applied. A Scala compiler will drop such annotations in cases where it
* would rewrite a type constraint.
*
* @author Lex Spoon
* @version 1.1, 2007-11-5
* @since 2.6
*/
trait TypeConstraint extends Annotation
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