Class TailrecPromise

future-java/src/main/java/io/trane/future/Tailrec.java:127–139

}

final class TailrecPromise<T> extends Promise<T> implements Runnable {
  private final Supplier<Future<T>> sup;

  protected TailrecPromise(final Supplier<Future<T>> sup) {
    super();
    this.sup = sup;
  }

  @Override
  public final void run() {
    become(sup.get());
  }
}