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package scala.concurrent.impl
/**
* JavaScript specific implementation of AbstractPromise
*
* This basically implements a "CAS" in Scala for JavaScript. Its
* implementation is trivial because there is no multi-threading.
*
* @author Tobias Schlatter
*/
abstract class AbstractPromise {
private var state: AnyRef = _
protected final
def updateState(oldState: AnyRef, newState: AnyRef): Boolean = {
if (state eq oldState) {
state = newState
true
} else false
}
protected final def getState: AnyRef = state
}
object AbstractPromise {
protected def updater = ???
}
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