add hw2
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nik
364
node_modules/scheduler/cjs/scheduler.development.js
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vendored
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364
node_modules/scheduler/cjs/scheduler.development.js
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/**
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* @license React
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* scheduler.development.js
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*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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"use strict";
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"production" !== process.env.NODE_ENV &&
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(function () {
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function performWorkUntilDeadline() {
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needsPaint = !1;
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if (isMessageLoopRunning) {
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var currentTime = exports.unstable_now();
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startTime = currentTime;
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var hasMoreWork = !0;
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try {
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a: {
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isHostCallbackScheduled = !1;
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isHostTimeoutScheduled &&
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((isHostTimeoutScheduled = !1),
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localClearTimeout(taskTimeoutID),
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(taskTimeoutID = -1));
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isPerformingWork = !0;
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var previousPriorityLevel = currentPriorityLevel;
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try {
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b: {
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advanceTimers(currentTime);
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for (
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currentTask = peek(taskQueue);
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null !== currentTask &&
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!(
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currentTask.expirationTime > currentTime &&
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shouldYieldToHost()
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);
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) {
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var callback = currentTask.callback;
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if ("function" === typeof callback) {
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currentTask.callback = null;
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currentPriorityLevel = currentTask.priorityLevel;
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var continuationCallback = callback(
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currentTask.expirationTime <= currentTime
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);
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currentTime = exports.unstable_now();
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if ("function" === typeof continuationCallback) {
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currentTask.callback = continuationCallback;
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advanceTimers(currentTime);
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hasMoreWork = !0;
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break b;
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}
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currentTask === peek(taskQueue) && pop(taskQueue);
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advanceTimers(currentTime);
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} else pop(taskQueue);
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currentTask = peek(taskQueue);
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}
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if (null !== currentTask) hasMoreWork = !0;
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else {
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var firstTimer = peek(timerQueue);
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null !== firstTimer &&
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requestHostTimeout(
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handleTimeout,
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firstTimer.startTime - currentTime
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);
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hasMoreWork = !1;
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}
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}
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break a;
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} finally {
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(currentTask = null),
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(currentPriorityLevel = previousPriorityLevel),
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(isPerformingWork = !1);
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}
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hasMoreWork = void 0;
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}
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} finally {
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hasMoreWork
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? schedulePerformWorkUntilDeadline()
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: (isMessageLoopRunning = !1);
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}
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}
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}
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function push(heap, node) {
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var index = heap.length;
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heap.push(node);
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a: for (; 0 < index; ) {
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var parentIndex = (index - 1) >>> 1,
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parent = heap[parentIndex];
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if (0 < compare(parent, node))
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(heap[parentIndex] = node),
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(heap[index] = parent),
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(index = parentIndex);
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else break a;
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}
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}
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function peek(heap) {
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return 0 === heap.length ? null : heap[0];
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}
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function pop(heap) {
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if (0 === heap.length) return null;
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var first = heap[0],
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last = heap.pop();
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if (last !== first) {
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heap[0] = last;
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a: for (
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var index = 0, length = heap.length, halfLength = length >>> 1;
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index < halfLength;
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) {
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var leftIndex = 2 * (index + 1) - 1,
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left = heap[leftIndex],
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rightIndex = leftIndex + 1,
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right = heap[rightIndex];
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if (0 > compare(left, last))
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rightIndex < length && 0 > compare(right, left)
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? ((heap[index] = right),
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(heap[rightIndex] = last),
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(index = rightIndex))
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: ((heap[index] = left),
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(heap[leftIndex] = last),
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(index = leftIndex));
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else if (rightIndex < length && 0 > compare(right, last))
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(heap[index] = right),
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(heap[rightIndex] = last),
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(index = rightIndex);
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else break a;
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}
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}
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return first;
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}
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function compare(a, b) {
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var diff = a.sortIndex - b.sortIndex;
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return 0 !== diff ? diff : a.id - b.id;
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}
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function advanceTimers(currentTime) {
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for (var timer = peek(timerQueue); null !== timer; ) {
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if (null === timer.callback) pop(timerQueue);
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else if (timer.startTime <= currentTime)
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pop(timerQueue),
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(timer.sortIndex = timer.expirationTime),
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push(taskQueue, timer);
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else break;
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timer = peek(timerQueue);
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}
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}
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function handleTimeout(currentTime) {
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isHostTimeoutScheduled = !1;
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advanceTimers(currentTime);
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if (!isHostCallbackScheduled)
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if (null !== peek(taskQueue))
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(isHostCallbackScheduled = !0),
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isMessageLoopRunning ||
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((isMessageLoopRunning = !0), schedulePerformWorkUntilDeadline());
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else {
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var firstTimer = peek(timerQueue);
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null !== firstTimer &&
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requestHostTimeout(
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handleTimeout,
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firstTimer.startTime - currentTime
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);
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}
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}
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function shouldYieldToHost() {
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return needsPaint
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? !0
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: exports.unstable_now() - startTime < frameInterval
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? !1
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: !0;
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}
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function requestHostTimeout(callback, ms) {
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taskTimeoutID = localSetTimeout(function () {
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callback(exports.unstable_now());
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}, ms);
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}
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStart &&
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__REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStart(Error());
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exports.unstable_now = void 0;
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if (
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"object" === typeof performance &&
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"function" === typeof performance.now
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) {
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var localPerformance = performance;
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exports.unstable_now = function () {
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return localPerformance.now();
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};
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} else {
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var localDate = Date,
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initialTime = localDate.now();
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exports.unstable_now = function () {
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return localDate.now() - initialTime;
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};
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}
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var taskQueue = [],
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timerQueue = [],
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taskIdCounter = 1,
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currentTask = null,
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currentPriorityLevel = 3,
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isPerformingWork = !1,
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isHostCallbackScheduled = !1,
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isHostTimeoutScheduled = !1,
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needsPaint = !1,
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localSetTimeout = "function" === typeof setTimeout ? setTimeout : null,
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localClearTimeout =
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"function" === typeof clearTimeout ? clearTimeout : null,
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localSetImmediate =
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"undefined" !== typeof setImmediate ? setImmediate : null,
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isMessageLoopRunning = !1,
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taskTimeoutID = -1,
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frameInterval = 5,
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startTime = -1;
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if ("function" === typeof localSetImmediate)
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var schedulePerformWorkUntilDeadline = function () {
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localSetImmediate(performWorkUntilDeadline);
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};
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else if ("undefined" !== typeof MessageChannel) {
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var channel = new MessageChannel(),
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port = channel.port2;
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channel.port1.onmessage = performWorkUntilDeadline;
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schedulePerformWorkUntilDeadline = function () {
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port.postMessage(null);
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};
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} else
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schedulePerformWorkUntilDeadline = function () {
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localSetTimeout(performWorkUntilDeadline, 0);
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};
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exports.unstable_IdlePriority = 5;
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exports.unstable_ImmediatePriority = 1;
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exports.unstable_LowPriority = 4;
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exports.unstable_NormalPriority = 3;
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exports.unstable_Profiling = null;
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exports.unstable_UserBlockingPriority = 2;
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exports.unstable_cancelCallback = function (task) {
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task.callback = null;
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};
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exports.unstable_forceFrameRate = function (fps) {
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0 > fps || 125 < fps
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? console.error(
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"forceFrameRate takes a positive int between 0 and 125, forcing frame rates higher than 125 fps is not supported"
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)
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: (frameInterval = 0 < fps ? Math.floor(1e3 / fps) : 5);
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};
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exports.unstable_getCurrentPriorityLevel = function () {
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return currentPriorityLevel;
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};
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exports.unstable_next = function (eventHandler) {
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switch (currentPriorityLevel) {
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case 1:
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case 2:
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case 3:
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var priorityLevel = 3;
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break;
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default:
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priorityLevel = currentPriorityLevel;
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}
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var previousPriorityLevel = currentPriorityLevel;
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currentPriorityLevel = priorityLevel;
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try {
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return eventHandler();
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} finally {
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currentPriorityLevel = previousPriorityLevel;
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}
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};
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exports.unstable_requestPaint = function () {
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needsPaint = !0;
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};
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exports.unstable_runWithPriority = function (priorityLevel, eventHandler) {
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switch (priorityLevel) {
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case 1:
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case 2:
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case 3:
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case 4:
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case 5:
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break;
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default:
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priorityLevel = 3;
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}
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var previousPriorityLevel = currentPriorityLevel;
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currentPriorityLevel = priorityLevel;
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try {
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return eventHandler();
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} finally {
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currentPriorityLevel = previousPriorityLevel;
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}
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};
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exports.unstable_scheduleCallback = function (
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priorityLevel,
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callback,
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options
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) {
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var currentTime = exports.unstable_now();
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"object" === typeof options && null !== options
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? ((options = options.delay),
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(options =
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"number" === typeof options && 0 < options
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? currentTime + options
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: currentTime))
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: (options = currentTime);
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switch (priorityLevel) {
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case 1:
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var timeout = -1;
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break;
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case 2:
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timeout = 250;
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break;
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case 5:
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timeout = 1073741823;
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break;
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case 4:
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timeout = 1e4;
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break;
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default:
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timeout = 5e3;
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}
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timeout = options + timeout;
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priorityLevel = {
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id: taskIdCounter++,
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callback: callback,
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priorityLevel: priorityLevel,
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startTime: options,
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expirationTime: timeout,
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sortIndex: -1
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};
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options > currentTime
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? ((priorityLevel.sortIndex = options),
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push(timerQueue, priorityLevel),
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null === peek(taskQueue) &&
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priorityLevel === peek(timerQueue) &&
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(isHostTimeoutScheduled
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? (localClearTimeout(taskTimeoutID), (taskTimeoutID = -1))
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: (isHostTimeoutScheduled = !0),
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requestHostTimeout(handleTimeout, options - currentTime)))
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: ((priorityLevel.sortIndex = timeout),
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push(taskQueue, priorityLevel),
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isHostCallbackScheduled ||
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isPerformingWork ||
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((isHostCallbackScheduled = !0),
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isMessageLoopRunning ||
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((isMessageLoopRunning = !0),
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schedulePerformWorkUntilDeadline())));
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return priorityLevel;
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};
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exports.unstable_shouldYield = shouldYieldToHost;
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exports.unstable_wrapCallback = function (callback) {
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var parentPriorityLevel = currentPriorityLevel;
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return function () {
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var previousPriorityLevel = currentPriorityLevel;
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currentPriorityLevel = parentPriorityLevel;
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try {
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return callback.apply(this, arguments);
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} finally {
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currentPriorityLevel = previousPriorityLevel;
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}
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};
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};
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"undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
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"function" ===
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typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&
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__REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop(Error());
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})();
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