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package scala.reactive



import scala.reflect.ClassTag



/** A prototype for instantiating an isolate that
 *  takes specific parameters.
 * 
 *  @tparam I         type of the isolate
 */
final class Proto[+I <: Isolate[_]] private[reactive] (val clazz: Class[_], val params: Seq[Any]) {

  /** Instantiates and returns the isolate.
   */
  def create(): I = util.Reflect.instantiate(clazz, params).asInstanceOf[I]

}


object Proto {

  /** Creates prototype for instantiating an isolate that takes no parameters.
   * 
   *  @tparam I         type of the isolate, must be a concrete type, or its class tag must be in scope
   *  @return           a new prototype of an isolate of type `T`
   */
  def apply[I <: Isolate[_]: ClassTag] = new Proto[I](implicitly[ClassTag[I]].erasure.asInstanceOf[Class[I]], Seq())

  /** Creates prototype for instantiating an isolate that takes specific parameters.
   * 
   *  @tparam I         type of the isolate, must be a concrete type, or its class tag must be in scope
   *  @param clazz      class that describes the isolate
   *  @param params     parameters for instantiating the prototype
   *  @return           a new prototype of an isolate of type `T` with the specified parameters
   */
  def apply[I <: Isolate[_]](clazz: Class[I], params: Any*) = new Proto[I](clazz, params)

}