Interface WaitQueue

future-java/src/main/java/io/trane/future/WaitQueue.java:3–10

package io.trane.future;

interface WaitQueue<T> {

  WaitQueue<T> add(Continuation<T, ?> c);

  void flush(Future<T> result);

  void forward(Promise<T> target);
}

final class WaitQueueHeadTail<T> implements WaitQueue<T> {