Method shift

packages/insomnia/bin/yarn-standalone.js:35542–35593

(key)

  }

  shift(key) {
    if (this.running[key]) {
      delete this.running[key];
      this.runningCount--;

      if (this.stuckTimer) {
        clearTimeout(this.stuckTimer);
        this.stuckTimer = null;
      }

      if (this.warnedStuck) {
        this.warnedStuck = false;
        debug(`${JSON.stringify(this.alias)} blocking queue finally resolved. Nothing to worry about.`);
      }
    }

    const queue = this.queue[key];
    if (!queue) {
      return;
    }

    var _queue$shift = queue.shift();

    const resolve = _queue$shift.resolve,
          reject = _queue$shift.reject,
          factory = _queue$shift.factory;

    if (!queue.length) {
      delete this.queue[key];
    }

    const next = () => {
      this.shift(key);
      this.shiftConcurrencyQueue();
    };

    const run = () => {
      this.running[key] = true;
      this.runningCount++;

      factory().then(function (val) {
        resolve(val);
        next();
        return null;
      }).catch(function (err) {
        reject(err);
        next();
      });
    };

    this.maybePushConcurrencyQueue(run);
  }

  maybePushConcurrencyQueue(run) {
    if (this.runningCount < this.maxConcurrency) {