/* */ (function(process) { 'use strict'; if (process.env.NODE_ENV !== "production") { (function() { 'use strict'; var enableSchedulerDebugging = false; var enableProfiling = false; function push(heap, node) { var index = heap.length; heap.push(node); siftUp(heap, node, index); } function peek(heap) { return heap.length === 0 ? null : heap[0]; } function pop(heap) { if (heap.length === 0) { return null; } var first = heap[0]; var last = heap.pop(); if (last !== first) { heap[0] = last; siftDown(heap, last, 0); } return first; } function siftUp(heap, node, i) { var index = i; while (index > 0) { var parentIndex = index - 1 >>> 1; var parent = heap[parentIndex]; if (compare(parent, node) > 0) { heap[parentIndex] = node; heap[index] = parent; index = parentIndex; } else { return; } } } function siftDown(heap, node, i) { var index = i; var length = heap.length; var halfLength = length >>> 1; while (index < halfLength) { var leftIndex = (index + 1) * 2 - 1; var left = heap[leftIndex]; var rightIndex = leftIndex + 1; var right = heap[rightIndex]; if (compare(left, node) < 0) { if (rightIndex < length && compare(right, left) < 0) { heap[index] = right; heap[rightIndex] = node; index = rightIndex; } else { heap[index] = left; heap[leftIndex] = node; index = leftIndex; } } else if (rightIndex < length && compare(right, node) < 0) { heap[index] = right; heap[rightIndex] = node; index = rightIndex; } else { return; } } } function compare(a, b) { var diff = a.sortIndex - b.sortIndex; return diff !== 0 ? diff : a.id - b.id; } var ImmediatePriority = 1; var UserBlockingPriority = 2; var NormalPriority = 3; var LowPriority = 4; var IdlePriority = 5; function markTaskErrored(task, ms) {} var maxSigned31BitInt = 1073741823; var IMMEDIATE_PRIORITY_TIMEOUT = -1; var USER_BLOCKING_PRIORITY_TIMEOUT = 250; var NORMAL_PRIORITY_TIMEOUT = 5000; var LOW_PRIORITY_TIMEOUT = 10000; var IDLE_PRIORITY_TIMEOUT = maxSigned31BitInt; var taskQueue = []; var timerQueue = []; var taskIdCounter = 1; var currentTask = null; var currentPriorityLevel = NormalPriority; var isPerformingWork = false; var isHostCallbackScheduled = false; var isHostTimeoutScheduled = false; var currentMockTime = 0; var scheduledCallback = null; var scheduledTimeout = null; var timeoutTime = -1; var yieldedValues = null; var expectedNumberOfYields = -1; var didStop = false; var isFlushing = false; var needsPaint = false; var shouldYieldForPaint = false; var disableYieldValue = false; function setDisableYieldValue(newValue) { disableYieldValue = newValue; } function advanceTimers(currentTime) { var timer = peek(timerQueue); while (timer !== null) { if (timer.callback === null) { pop(timerQueue); } else if (timer.startTime <= currentTime) { pop(timerQueue); timer.sortIndex = timer.expirationTime; push(taskQueue, timer); } else { return; } timer = peek(timerQueue); } } function handleTimeout(currentTime) { isHostTimeoutScheduled = false; advanceTimers(currentTime); if (!isHostCallbackScheduled) { if (peek(taskQueue) !== null) { isHostCallbackScheduled = true; requestHostCallback(flushWork); } else { var firstTimer = peek(timerQueue); if (firstTimer !== null) { requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime); } } } } function flushWork(hasTimeRemaining, initialTime) { isHostCallbackScheduled = false; if (isHostTimeoutScheduled) { isHostTimeoutScheduled = false; cancelHostTimeout(); } isPerformingWork = true; var previousPriorityLevel = currentPriorityLevel; try { if (enableProfiling) { try { return workLoop(hasTimeRemaining, initialTime); } catch (error) { if (currentTask !== null) { var currentTime = getCurrentTime(); markTaskErrored(currentTask, currentTime); currentTask.isQueued = false; } throw error; } } else { return workLoop(hasTimeRemaining, initialTime); } } finally { currentTask = null; currentPriorityLevel = previousPriorityLevel; isPerformingWork = false; } } function workLoop(hasTimeRemaining, initialTime) { var currentTime = initialTime; advanceTimers(currentTime); currentTask = peek(taskQueue); while (currentTask !== null && !(enableSchedulerDebugging)) { if (currentTask.expirationTime > currentTime && (!hasTimeRemaining || shouldYieldToHost())) { break; } var callback = currentTask.callback; if (typeof callback === 'function') { currentTask.callback = null; currentPriorityLevel = currentTask.priorityLevel; var didUserCallbackTimeout = currentTask.expirationTime <= currentTime; var continuationCallback = callback(didUserCallbackTimeout); currentTime = getCurrentTime(); if (typeof continuationCallback === 'function') { currentTask.callback = continuationCallback; } else { if (currentTask === peek(taskQueue)) { pop(taskQueue); } } advanceTimers(currentTime); } else { pop(taskQueue); } currentTask = peek(taskQueue); } if (currentTask !== null) { return true; } else { var firstTimer = peek(timerQueue); if (firstTimer !== null) { requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime); } return false; } } function unstable_runWithPriority(priorityLevel, eventHandler) { switch (priorityLevel) { case ImmediatePriority: case UserBlockingPriority: case NormalPriority: case LowPriority: case IdlePriority: break; default: priorityLevel = NormalPriority; } var previousPriorityLevel = currentPriorityLevel; currentPriorityLevel = priorityLevel; try { return eventHandler(); } finally { currentPriorityLevel = previousPriorityLevel; } } function unstable_next(eventHandler) { var priorityLevel; switch (currentPriorityLevel) { case ImmediatePriority: case UserBlockingPriority: case NormalPriority: priorityLevel = NormalPriority; break; default: priorityLevel = currentPriorityLevel; break; } var previousPriorityLevel = currentPriorityLevel; currentPriorityLevel = priorityLevel; try { return eventHandler(); } finally { currentPriorityLevel = previousPriorityLevel; } } function unstable_wrapCallback(callback) { var parentPriorityLevel = currentPriorityLevel; return function() { var previousPriorityLevel = currentPriorityLevel; currentPriorityLevel = parentPriorityLevel; try { return callback.apply(this, arguments); } finally { currentPriorityLevel = previousPriorityLevel; } }; } function unstable_scheduleCallback(priorityLevel, callback, options) { var currentTime = getCurrentTime(); var startTime; if (typeof options === 'object' && options !== null) { var delay = options.delay; if (typeof delay === 'number' && delay > 0) { startTime = currentTime + delay; } else { startTime = currentTime; } } else { startTime = currentTime; } var timeout; switch (priorityLevel) { case ImmediatePriority: timeout = IMMEDIATE_PRIORITY_TIMEOUT; break; case UserBlockingPriority: timeout = USER_BLOCKING_PRIORITY_TIMEOUT; break; case IdlePriority: timeout = IDLE_PRIORITY_TIMEOUT; break; case LowPriority: timeout = LOW_PRIORITY_TIMEOUT; break; case NormalPriority: default: timeout = NORMAL_PRIORITY_TIMEOUT; break; } var expirationTime = startTime + timeout; var newTask = { id: taskIdCounter++, callback: callback, priorityLevel: priorityLevel, startTime: startTime, expirationTime: expirationTime, sortIndex: -1 }; if (startTime > currentTime) { newTask.sortIndex = startTime; push(timerQueue, newTask); if (peek(taskQueue) === null && newTask === peek(timerQueue)) { if (isHostTimeoutScheduled) { cancelHostTimeout(); } else { isHostTimeoutScheduled = true; } requestHostTimeout(handleTimeout, startTime - currentTime); } } else { newTask.sortIndex = expirationTime; push(taskQueue, newTask); if (!isHostCallbackScheduled && !isPerformingWork) { isHostCallbackScheduled = true; requestHostCallback(flushWork); } } return newTask; } function unstable_pauseExecution() {} function unstable_continueExecution() { if (!isHostCallbackScheduled && !isPerformingWork) { isHostCallbackScheduled = true; requestHostCallback(flushWork); } } function unstable_getFirstCallbackNode() { return peek(taskQueue); } function unstable_cancelCallback(task) { task.callback = null; } function unstable_getCurrentPriorityLevel() { return currentPriorityLevel; } function requestHostCallback(callback) { scheduledCallback = callback; } function requestHostTimeout(callback, ms) { scheduledTimeout = callback; timeoutTime = currentMockTime + ms; } function cancelHostTimeout() { scheduledTimeout = null; timeoutTime = -1; } function shouldYieldToHost() { if (expectedNumberOfYields === 0 && yieldedValues === null || expectedNumberOfYields !== -1 && yieldedValues !== null && yieldedValues.length >= expectedNumberOfYields || shouldYieldForPaint && needsPaint) { didStop = true; return true; } return false; } function getCurrentTime() { return currentMockTime; } function forceFrameRate() {} function reset() { if (isFlushing) { throw new Error('Cannot reset while already flushing work.'); } currentMockTime = 0; scheduledCallback = null; scheduledTimeout = null; timeoutTime = -1; yieldedValues = null; expectedNumberOfYields = -1; didStop = false; isFlushing = false; needsPaint = false; } function unstable_flushNumberOfYields(count) { if (isFlushing) { throw new Error('Already flushing work.'); } if (scheduledCallback !== null) { var cb = scheduledCallback; expectedNumberOfYields = count; isFlushing = true; try { var hasMoreWork = true; do { hasMoreWork = cb(true, currentMockTime); } while (hasMoreWork && !didStop); if (!hasMoreWork) { scheduledCallback = null; } } finally { expectedNumberOfYields = -1; didStop = false; isFlushing = false; } } } function unstable_flushUntilNextPaint() { if (isFlushing) { throw new Error('Already flushing work.'); } if (scheduledCallback !== null) { var cb = scheduledCallback; shouldYieldForPaint = true; needsPaint = false; isFlushing = true; try { var hasMoreWork = true; do { hasMoreWork = cb(true, currentMockTime); } while (hasMoreWork && !didStop); if (!hasMoreWork) { scheduledCallback = null; } } finally { shouldYieldForPaint = false; didStop = false; isFlushing = false; } } } function unstable_flushExpired() { if (isFlushing) { throw new Error('Already flushing work.'); } if (scheduledCallback !== null) { isFlushing = true; try { var hasMoreWork = scheduledCallback(false, currentMockTime); if (!hasMoreWork) { scheduledCallback = null; } } finally { isFlushing = false; } } } function unstable_flushAllWithoutAsserting() { if (isFlushing) { throw new Error('Already flushing work.'); } if (scheduledCallback !== null) { var cb = scheduledCallback; isFlushing = true; try { var hasMoreWork = true; do { hasMoreWork = cb(true, currentMockTime); } while (hasMoreWork); if (!hasMoreWork) { scheduledCallback = null; } return true; } finally { isFlushing = false; } } else { return false; } } function unstable_clearYields() { if (yieldedValues === null) { return []; } var values = yieldedValues; yieldedValues = null; return values; } function unstable_flushAll() { if (yieldedValues !== null) { throw new Error('Log is not empty. Assert on the log of yielded values before ' + 'flushing additional work.'); } unstable_flushAllWithoutAsserting(); if (yieldedValues !== null) { throw new Error('While flushing work, something yielded a value. Use an ' + 'assertion helper to assert on the log of yielded values, e.g. ' + 'expect(Scheduler).toFlushAndYield([...])'); } } function unstable_yieldValue(value) { if (console.log.name === 'disabledLog' || disableYieldValue) { return; } if (yieldedValues === null) { yieldedValues = [value]; } else { yieldedValues.push(value); } } function unstable_advanceTime(ms) { if (console.log.name === 'disabledLog' || disableYieldValue) { return; } currentMockTime += ms; if (scheduledTimeout !== null && timeoutTime <= currentMockTime) { scheduledTimeout(currentMockTime); timeoutTime = -1; scheduledTimeout = null; } } function requestPaint() { needsPaint = true; } var unstable_Profiling = null; exports.reset = reset; exports.unstable_IdlePriority = IdlePriority; exports.unstable_ImmediatePriority = ImmediatePriority; exports.unstable_LowPriority = LowPriority; exports.unstable_NormalPriority = NormalPriority; exports.unstable_Profiling = unstable_Profiling; exports.unstable_UserBlockingPriority = UserBlockingPriority; exports.unstable_advanceTime = unstable_advanceTime; exports.unstable_cancelCallback = unstable_cancelCallback; exports.unstable_clearYields = unstable_clearYields; exports.unstable_continueExecution = unstable_continueExecution; exports.unstable_flushAll = unstable_flushAll; exports.unstable_flushAllWithoutAsserting = unstable_flushAllWithoutAsserting; exports.unstable_flushExpired = unstable_flushExpired; exports.unstable_flushNumberOfYields = unstable_flushNumberOfYields; exports.unstable_flushUntilNextPaint = unstable_flushUntilNextPaint; exports.unstable_forceFrameRate = forceFrameRate; exports.unstable_getCurrentPriorityLevel = unstable_getCurrentPriorityLevel; exports.unstable_getFirstCallbackNode = unstable_getFirstCallbackNode; exports.unstable_next = unstable_next; exports.unstable_now = getCurrentTime; exports.unstable_pauseExecution = unstable_pauseExecution; exports.unstable_requestPaint = requestPaint; exports.unstable_runWithPriority = unstable_runWithPriority; exports.unstable_scheduleCallback = unstable_scheduleCallback; exports.unstable_setDisableYieldValue = setDisableYieldValue; exports.unstable_shouldYield = shouldYieldToHost; exports.unstable_wrapCallback = unstable_wrapCallback; exports.unstable_yieldValue = unstable_yieldValue; })(); } })(require('process'));