Scala syntax for Java 8 StampedLock

StampedLockSyntax.scala

object StampedLockSyntax {  
  def syncRead[T](lock: StampedLock)(block: => T): T = {
    val stamp = lock.readLock()
    try {
      block
    } finally {
      lock.unlockRead(stamp)
    }
  }

  def syncOptRead[T](lock: StampedLock)(block: => T): T = {
    val stamp = lock.tryOptimisticRead()
    block match {
      case res: T if lock.validate(stamp) => res
      case _ => syncRead(lock)(block)
    }
  }

  def syncWrite[T](lock: StampedLock)(block: => T): T = {
    val stamp = lock.writeLock()
    try {
      block
    } finally {
      lock.unlockWrite(stamp)
    }
  }
}