Method worker

bin/yarn-standalone.js:103016–103058

(spinner, workQueue, installed, waitQueue)

  }

  worker(spinner, workQueue, installed, waitQueue) {
    var _this5 = this;

    return (0, (_asyncToGenerator2 || _load_asyncToGenerator()).default)(function* () {
      while (workQueue.size > 0) {
        // find a installable package
        const pkg = _this5.findInstallablePackage(workQueue, installed);

        // can't find a package to install, register into waitQueue
        if (pkg == null) {
          spinner.clear();
          yield new Promise(function (resolve) {
            return waitQueue.add(resolve);
          });
          continue;
        }

        // found a package to install
        workQueue.delete(pkg);
        if (_this5.packageCanBeInstalled(pkg)) {
          yield _this5.runCommand(spinner, pkg);
        }
        installed.add(pkg);
        for (var _iterator8 = waitQueue, _isArray8 = Array.isArray(_iterator8), _i8 = 0, _iterator8 = _isArray8 ? _iterator8 : _iterator8[Symbol.iterator]();;) {
          var _ref13;

          if (_isArray8) {
            if (_i8 >= _iterator8.length) break;
            _ref13 = _iterator8[_i8++];
          } else {
            _i8 = _iterator8.next();
            if (_i8.done) break;
            _ref13 = _i8.value;
          }

          const workerResolve = _ref13;

          workerResolve();
        }
        waitQueue.clear();
      }
    })();
  }

  init(seedPatterns) {
    var _this6 = this;