@tamagui/react-native-web-lite/dist/esm/InteractionManager/TaskQueue.js

React Native for Web

import { invariant } from "@tamagui/react-native-web-internals";
class TaskQueue {
  _queueStack;
  _onMoreTasks;
  constructor({ onMoreTasks }) {
    this._onMoreTasks = onMoreTasks, this._queueStack = [{ tasks: [], popable: !0 }];
  }
  enqueue(task) {
    this._getCurrentQueue().push(task);
  }
  enqueueTasks(tasks) {
    tasks.forEach((task) => this.enqueue(task));
  }
  cancelTasks(tasksToCancel) {
    this._queueStack = this._queueStack.map((queue) => ({
      ...queue,
      tasks: queue.tasks.filter((task) => !tasksToCancel.includes(task))
    })).filter((queue, idx) => queue.tasks.length > 0 || idx === 0);
  }
  hasTasksToProcess() {
    return this._getCurrentQueue().length > 0;
  }
  /**
   * Executes the next task in the queue.
   */
  processNext() {
    const queue = this._getCurrentQueue();
    if (queue.length) {
      const task = queue.shift();
      try {
        typeof task == "object" && "gen" in task ? this._genPromise(task) : typeof task == "object" && "run" in task ? task.run() : (invariant(
          typeof task == "function",
          `Expected Function, SimpleTask, or PromiseTask, but got:
` + JSON.stringify(task, null, 2)
        ), task());
      } catch (e) {
        throw e instanceof Error && (e.message = "TaskQueue: Error with task " + (task?.name || "") + ": " + e.message), e;
      }
    }
  }
  _getCurrentQueue() {
    const stackIdx = this._queueStack.length - 1, queue = this._queueStack[stackIdx];
    return queue.popable && queue.tasks.length === 0 && stackIdx > 0 ? (this._queueStack.pop(), this._getCurrentQueue()) : queue.tasks;
  }
  _genPromise(task) {
    const stackIdx = this._queueStack.push({ tasks: [], popable: !1 }) - 1, stackItem = this._queueStack[stackIdx];
    task.gen().then(() => {
      stackItem.popable = !0, this.hasTasksToProcess() && this._onMoreTasks();
    }).catch((ex) => {
      setTimeout(() => {
        throw ex instanceof Error && (ex.message = `TaskQueue: Error resolving Promise in task ${task.name}: ${ex.message}`), ex;
      }, 0);
    });
  }
}
var TaskQueue_default = TaskQueue;
export {
  TaskQueue_default as default
};
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