1 files changed, 699 insertions, 0 deletions
diff --git a/node_modules/scheduler/umd/scheduler-unstable_mock.development.js b/node_modules/scheduler/umd/scheduler-unstable_mock.development.js
new file mode 100644
index 0000000..7883dac
--- /dev/null
+++ b/node_modules/scheduler/umd/scheduler-unstable_mock.development.js
@@ -0,0 +1,699 @@
+/**
+ * @license React
+ * scheduler-unstable_mock.development.js
+ *
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+  typeof define === 'function' && define.amd ? define(['exports'], factory) :
+  (global = global || self, factory(global.SchedulerMock = {}));
+}(this, (function (exports) { '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) {
+        // The parent is larger. Swap positions.
+        heap[parentIndex] = node;
+        heap[index] = parent;
+        index = parentIndex;
+      } else {
+        // The parent is smaller. Exit.
+        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 the left or right node is smaller, swap with the smaller of those.
+
+      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 {
+        // Neither child is smaller. Exit.
+        return;
+      }
+    }
+  }
+
+  function compare(a, b) {
+    // Compare sort index first, then task id.
+    var diff = a.sortIndex - b.sortIndex;
+    return diff !== 0 ? diff : a.id - b.id;
+  }
+
+  // TODO: Use symbols?
+  var ImmediatePriority = 1;
+  var UserBlockingPriority = 2;
+  var NormalPriority = 3;
+  var LowPriority = 4;
+  var IdlePriority = 5;
+
+  function markTaskErrored(task, ms) {
+  }
+
+  /* eslint-disable no-var */
+  // Math.pow(2, 30) - 1
+  // 0b111111111111111111111111111111
+
+  var maxSigned31BitInt = 1073741823; // Times out immediately
+
+  var IMMEDIATE_PRIORITY_TIMEOUT = -1; // Eventually times out
+
+  var USER_BLOCKING_PRIORITY_TIMEOUT = 250;
+  var NORMAL_PRIORITY_TIMEOUT = 5000;
+  var LOW_PRIORITY_TIMEOUT = 10000; // Never times out
+
+  var IDLE_PRIORITY_TIMEOUT = maxSigned31BitInt; // Tasks are stored on a min heap
+
+  var taskQueue = [];
+  var timerQueue = []; // Incrementing id counter. Used to maintain insertion order.
+
+  var taskIdCounter = 1; // Pausing the scheduler is useful for debugging.
+  var currentTask = null;
+  var currentPriorityLevel = NormalPriority; // This is set while performing work, to prevent re-entrance.
+
+  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) {
+    // Check for tasks that are no longer delayed and add them to the queue.
+    var timer = peek(timerQueue);
+
+    while (timer !== null) {
+      if (timer.callback === null) {
+        // Timer was cancelled.
+        pop(timerQueue);
+      } else if (timer.startTime <= currentTime) {
+        // Timer fired. Transfer to the task queue.
+        pop(timerQueue);
+        timer.sortIndex = timer.expirationTime;
+        push(taskQueue, timer);
+      } else {
+        // Remaining timers are pending.
+        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) {
+      // We scheduled a timeout but it's no longer needed. Cancel it.
+      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 {
+        // No catch in prod code path.
+        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())) {
+        // This currentTask hasn't expired, and we've reached the deadline.
+        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);
+    } // Return whether there's additional work
+
+
+    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:
+        // Shift down to normal priority
+        priorityLevel = NormalPriority;
+        break;
+
+      default:
+        // Anything lower than normal priority should remain at the current level.
+        priorityLevel = currentPriorityLevel;
+        break;
+    }
+
+    var previousPriorityLevel = currentPriorityLevel;
+    currentPriorityLevel = priorityLevel;
+
+    try {
+      return eventHandler();
+    } finally {
+      currentPriorityLevel = previousPriorityLevel;
+    }
+  }
+
+  function unstable_wrapCallback(callback) {
+    var parentPriorityLevel = currentPriorityLevel;
+    return function () {
+      // This is a fork of runWithPriority, inlined for performance.
+      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) {
+      // This is a delayed task.
+      newTask.sortIndex = startTime;
+      push(timerQueue, newTask);
+
+      if (peek(taskQueue) === null && newTask === peek(timerQueue)) {
+        // All tasks are delayed, and this is the task with the earliest delay.
+        if (isHostTimeoutScheduled) {
+          // Cancel an existing timeout.
+          cancelHostTimeout();
+        } else {
+          isHostTimeoutScheduled = true;
+        } // Schedule a timeout.
+
+
+        requestHostTimeout(handleTimeout, startTime - currentTime);
+      }
+    } else {
+      newTask.sortIndex = expirationTime;
+      push(taskQueue, newTask);
+      // wait until the next time we yield.
+
+
+      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) {
+    // remove from the queue because you can't remove arbitrary nodes from an
+    // array based heap, only the first one.)
+
+
+    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) {
+      // We yielded at least as many values as expected. Stop flushing.
+      didStop = true;
+      return true;
+    }
+
+    return false;
+  }
+
+  function getCurrentTime() {
+    return currentMockTime;
+  }
+
+  function forceFrameRate() {// No-op
+  }
+
+  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;
+  } // Should only be used via an assertion helper that inspects the yielded values.
+
+
+  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() {
+    // Returns false if no work was flushed.
+    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) {
+    // eslint-disable-next-line react-internal/no-production-logging
+    if (console.log.name === 'disabledLog' || disableYieldValue) {
+      // If console.log has been patched, we assume we're in render
+      // replaying and we ignore any values yielding in the second pass.
+      return;
+    }
+
+    if (yieldedValues === null) {
+      yieldedValues = [value];
+    } else {
+      yieldedValues.push(value);
+    }
+  }
+
+  function unstable_advanceTime(ms) {
+    // eslint-disable-next-line react-internal/no-production-logging
+    if (console.log.name === 'disabledLog' || disableYieldValue) {
+      // If console.log has been patched, we assume we're in render
+      // replaying and we ignore any time advancing in the second pass.
+      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;
+
+})));