Scala example source code file (RichClass.scala)

This example Scala source code file (RichClass.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

boolean, boolean, class, jclass, jclass, list, list, manifest, richclass, string, string

The Scala RichClass.scala source code

/* NSC -- new Scala compiler
 * Copyright 2005-2011 LAMP/EPFL
 * @author  Paul Phillips
 */

package scala.tools.nsc
package interpreter

class RichClass[T](val clazz: Class[T]) {
  def toManifest: Manifest[T] = Manifest.classType(clazz)
  def toTypeString: String = TypeStrings.fromClazz(clazz)
  
  // Sadly isAnonymousClass does not return true for scala anonymous
  // classes because our naming scheme is not doing well against the
  // jvm's many assumptions.
  def isScalaAnonymous = clazz.isAnonymousClass || (clazz.getName contains "$anon$")
  
  /** It's not easy... to be... me... */
  def supermans: List[Manifest[_]] = supers map (_.toManifest)
  def superNames: List[String]     = supers map (_.getName)
  def interfaces: List[JClass]     = supers filter (_.isInterface)

  def hasAncestorName(f: String => Boolean) = superNames exists f
  def hasAncestor(f: JClass => Boolean) = supers exists f
  def hasAncestorInPackage(pkg: String) = hasAncestorName(_ startsWith (pkg + "."))

  def supers: List[JClass] = {
    def loop(x: JClass): List[JClass] = x.getSuperclass match {
      case null   => List(x)
      case sc     => x :: (x.getInterfaces.toList flatMap loop) ++ loop(sc)
    }
    loop(clazz).distinct
  }
}