 	 * @return {Function} `(value) -> undefined` A resolve or reject function.
 	###
 	genSettler = (self, state) -> (value) ->
-		if isLongStackTrace and state == $rejected
-			self[$settlerStack] = genTraceInfo()
-
 		settlePromise self, state, value
 
 	###*

	###
	constructor: (executor) ->
		if isLongStackTrace
			@[$handlerStack] = genTraceInfo()

		return if executor == $noop


		return

	scheduleUnhandledRejection = genScheduler 100, (p) ->
		Yaku.onUnhandledRejection p._value, p
		return

	callHanler = (handler, value) ->
