source: node_modules/scheduler/cjs/scheduler.production.js@ ba17441

Last change on this file since ba17441 was a762898, checked in by istevanoska <ilinastevanoska@…>, 5 months ago

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1/**
2 * @license React
3 * scheduler.production.js
4 *
5 * Copyright (c) Meta Platforms, Inc. and affiliates.
6 *
7 * This source code is licensed under the MIT license found in the
8 * LICENSE file in the root directory of this source tree.
9 */
10
11"use strict";
12function push(heap, node) {
13 var index = heap.length;
14 heap.push(node);
15 a: for (; 0 < index; ) {
16 var parentIndex = (index - 1) >>> 1,
17 parent = heap[parentIndex];
18 if (0 < compare(parent, node))
19 (heap[parentIndex] = node), (heap[index] = parent), (index = parentIndex);
20 else break a;
21 }
22}
23function peek(heap) {
24 return 0 === heap.length ? null : heap[0];
25}
26function pop(heap) {
27 if (0 === heap.length) return null;
28 var first = heap[0],
29 last = heap.pop();
30 if (last !== first) {
31 heap[0] = last;
32 a: for (
33 var index = 0, length = heap.length, halfLength = length >>> 1;
34 index < halfLength;
35
36 ) {
37 var leftIndex = 2 * (index + 1) - 1,
38 left = heap[leftIndex],
39 rightIndex = leftIndex + 1,
40 right = heap[rightIndex];
41 if (0 > compare(left, last))
42 rightIndex < length && 0 > compare(right, left)
43 ? ((heap[index] = right),
44 (heap[rightIndex] = last),
45 (index = rightIndex))
46 : ((heap[index] = left),
47 (heap[leftIndex] = last),
48 (index = leftIndex));
49 else if (rightIndex < length && 0 > compare(right, last))
50 (heap[index] = right), (heap[rightIndex] = last), (index = rightIndex);
51 else break a;
52 }
53 }
54 return first;
55}
56function compare(a, b) {
57 var diff = a.sortIndex - b.sortIndex;
58 return 0 !== diff ? diff : a.id - b.id;
59}
60exports.unstable_now = void 0;
61if ("object" === typeof performance && "function" === typeof performance.now) {
62 var localPerformance = performance;
63 exports.unstable_now = function () {
64 return localPerformance.now();
65 };
66} else {
67 var localDate = Date,
68 initialTime = localDate.now();
69 exports.unstable_now = function () {
70 return localDate.now() - initialTime;
71 };
72}
73var taskQueue = [],
74 timerQueue = [],
75 taskIdCounter = 1,
76 currentTask = null,
77 currentPriorityLevel = 3,
78 isPerformingWork = !1,
79 isHostCallbackScheduled = !1,
80 isHostTimeoutScheduled = !1,
81 needsPaint = !1,
82 localSetTimeout = "function" === typeof setTimeout ? setTimeout : null,
83 localClearTimeout = "function" === typeof clearTimeout ? clearTimeout : null,
84 localSetImmediate = "undefined" !== typeof setImmediate ? setImmediate : null;
85function advanceTimers(currentTime) {
86 for (var timer = peek(timerQueue); null !== timer; ) {
87 if (null === timer.callback) pop(timerQueue);
88 else if (timer.startTime <= currentTime)
89 pop(timerQueue),
90 (timer.sortIndex = timer.expirationTime),
91 push(taskQueue, timer);
92 else break;
93 timer = peek(timerQueue);
94 }
95}
96function handleTimeout(currentTime) {
97 isHostTimeoutScheduled = !1;
98 advanceTimers(currentTime);
99 if (!isHostCallbackScheduled)
100 if (null !== peek(taskQueue))
101 (isHostCallbackScheduled = !0),
102 isMessageLoopRunning ||
103 ((isMessageLoopRunning = !0), schedulePerformWorkUntilDeadline());
104 else {
105 var firstTimer = peek(timerQueue);
106 null !== firstTimer &&
107 requestHostTimeout(handleTimeout, firstTimer.startTime - currentTime);
108 }
109}
110var isMessageLoopRunning = !1,
111 taskTimeoutID = -1,
112 frameInterval = 5,
113 startTime = -1;
114function shouldYieldToHost() {
115 return needsPaint
116 ? !0
117 : exports.unstable_now() - startTime < frameInterval
118 ? !1
119 : !0;
120}
121function performWorkUntilDeadline() {
122 needsPaint = !1;
123 if (isMessageLoopRunning) {
124 var currentTime = exports.unstable_now();
125 startTime = currentTime;
126 var hasMoreWork = !0;
127 try {
128 a: {
129 isHostCallbackScheduled = !1;
130 isHostTimeoutScheduled &&
131 ((isHostTimeoutScheduled = !1),
132 localClearTimeout(taskTimeoutID),
133 (taskTimeoutID = -1));
134 isPerformingWork = !0;
135 var previousPriorityLevel = currentPriorityLevel;
136 try {
137 b: {
138 advanceTimers(currentTime);
139 for (
140 currentTask = peek(taskQueue);
141 null !== currentTask &&
142 !(
143 currentTask.expirationTime > currentTime && shouldYieldToHost()
144 );
145
146 ) {
147 var callback = currentTask.callback;
148 if ("function" === typeof callback) {
149 currentTask.callback = null;
150 currentPriorityLevel = currentTask.priorityLevel;
151 var continuationCallback = callback(
152 currentTask.expirationTime <= currentTime
153 );
154 currentTime = exports.unstable_now();
155 if ("function" === typeof continuationCallback) {
156 currentTask.callback = continuationCallback;
157 advanceTimers(currentTime);
158 hasMoreWork = !0;
159 break b;
160 }
161 currentTask === peek(taskQueue) && pop(taskQueue);
162 advanceTimers(currentTime);
163 } else pop(taskQueue);
164 currentTask = peek(taskQueue);
165 }
166 if (null !== currentTask) hasMoreWork = !0;
167 else {
168 var firstTimer = peek(timerQueue);
169 null !== firstTimer &&
170 requestHostTimeout(
171 handleTimeout,
172 firstTimer.startTime - currentTime
173 );
174 hasMoreWork = !1;
175 }
176 }
177 break a;
178 } finally {
179 (currentTask = null),
180 (currentPriorityLevel = previousPriorityLevel),
181 (isPerformingWork = !1);
182 }
183 hasMoreWork = void 0;
184 }
185 } finally {
186 hasMoreWork
187 ? schedulePerformWorkUntilDeadline()
188 : (isMessageLoopRunning = !1);
189 }
190 }
191}
192var schedulePerformWorkUntilDeadline;
193if ("function" === typeof localSetImmediate)
194 schedulePerformWorkUntilDeadline = function () {
195 localSetImmediate(performWorkUntilDeadline);
196 };
197else if ("undefined" !== typeof MessageChannel) {
198 var channel = new MessageChannel(),
199 port = channel.port2;
200 channel.port1.onmessage = performWorkUntilDeadline;
201 schedulePerformWorkUntilDeadline = function () {
202 port.postMessage(null);
203 };
204} else
205 schedulePerformWorkUntilDeadline = function () {
206 localSetTimeout(performWorkUntilDeadline, 0);
207 };
208function requestHostTimeout(callback, ms) {
209 taskTimeoutID = localSetTimeout(function () {
210 callback(exports.unstable_now());
211 }, ms);
212}
213exports.unstable_IdlePriority = 5;
214exports.unstable_ImmediatePriority = 1;
215exports.unstable_LowPriority = 4;
216exports.unstable_NormalPriority = 3;
217exports.unstable_Profiling = null;
218exports.unstable_UserBlockingPriority = 2;
219exports.unstable_cancelCallback = function (task) {
220 task.callback = null;
221};
222exports.unstable_forceFrameRate = function (fps) {
223 0 > fps || 125 < fps
224 ? console.error(
225 "forceFrameRate takes a positive int between 0 and 125, forcing frame rates higher than 125 fps is not supported"
226 )
227 : (frameInterval = 0 < fps ? Math.floor(1e3 / fps) : 5);
228};
229exports.unstable_getCurrentPriorityLevel = function () {
230 return currentPriorityLevel;
231};
232exports.unstable_next = function (eventHandler) {
233 switch (currentPriorityLevel) {
234 case 1:
235 case 2:
236 case 3:
237 var priorityLevel = 3;
238 break;
239 default:
240 priorityLevel = currentPriorityLevel;
241 }
242 var previousPriorityLevel = currentPriorityLevel;
243 currentPriorityLevel = priorityLevel;
244 try {
245 return eventHandler();
246 } finally {
247 currentPriorityLevel = previousPriorityLevel;
248 }
249};
250exports.unstable_requestPaint = function () {
251 needsPaint = !0;
252};
253exports.unstable_runWithPriority = function (priorityLevel, eventHandler) {
254 switch (priorityLevel) {
255 case 1:
256 case 2:
257 case 3:
258 case 4:
259 case 5:
260 break;
261 default:
262 priorityLevel = 3;
263 }
264 var previousPriorityLevel = currentPriorityLevel;
265 currentPriorityLevel = priorityLevel;
266 try {
267 return eventHandler();
268 } finally {
269 currentPriorityLevel = previousPriorityLevel;
270 }
271};
272exports.unstable_scheduleCallback = function (
273 priorityLevel,
274 callback,
275 options
276) {
277 var currentTime = exports.unstable_now();
278 "object" === typeof options && null !== options
279 ? ((options = options.delay),
280 (options =
281 "number" === typeof options && 0 < options
282 ? currentTime + options
283 : currentTime))
284 : (options = currentTime);
285 switch (priorityLevel) {
286 case 1:
287 var timeout = -1;
288 break;
289 case 2:
290 timeout = 250;
291 break;
292 case 5:
293 timeout = 1073741823;
294 break;
295 case 4:
296 timeout = 1e4;
297 break;
298 default:
299 timeout = 5e3;
300 }
301 timeout = options + timeout;
302 priorityLevel = {
303 id: taskIdCounter++,
304 callback: callback,
305 priorityLevel: priorityLevel,
306 startTime: options,
307 expirationTime: timeout,
308 sortIndex: -1
309 };
310 options > currentTime
311 ? ((priorityLevel.sortIndex = options),
312 push(timerQueue, priorityLevel),
313 null === peek(taskQueue) &&
314 priorityLevel === peek(timerQueue) &&
315 (isHostTimeoutScheduled
316 ? (localClearTimeout(taskTimeoutID), (taskTimeoutID = -1))
317 : (isHostTimeoutScheduled = !0),
318 requestHostTimeout(handleTimeout, options - currentTime)))
319 : ((priorityLevel.sortIndex = timeout),
320 push(taskQueue, priorityLevel),
321 isHostCallbackScheduled ||
322 isPerformingWork ||
323 ((isHostCallbackScheduled = !0),
324 isMessageLoopRunning ||
325 ((isMessageLoopRunning = !0), schedulePerformWorkUntilDeadline())));
326 return priorityLevel;
327};
328exports.unstable_shouldYield = shouldYieldToHost;
329exports.unstable_wrapCallback = function (callback) {
330 var parentPriorityLevel = currentPriorityLevel;
331 return function () {
332 var previousPriorityLevel = currentPriorityLevel;
333 currentPriorityLevel = parentPriorityLevel;
334 try {
335 return callback.apply(this, arguments);
336 } finally {
337 currentPriorityLevel = previousPriorityLevel;
338 }
339 };
340};
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