Helper methods used in thread-safe lazy vals.
Used to indicate the state of a lazy val that is currently being evaluated with no other thread awaiting its result.
Used to indicate the state of a lazy val that is currently being evaluated with no other thread awaiting its result.
Used to indicate the state of a lazy val that has been evaluated tonull.
Used to indicate the state of a lazy val that has been evaluated tonull.
Used to indicate the state of a lazy val that is being evaluated and of which other threads await the result.
Used to indicate the state of a lazy val that is being evaluated and of which other threads await the result.