demeine/lib/queue/Queue.js

DDDD - Distributed Domain Driven Design

"use strict";
Object.defineProperty(exports, "__esModule", {
    value: true
});
Object.defineProperty(exports, "Queue", {
    enumerable: true,
    get: function() {
        return Queue;
    }
});
var _events = /*#__PURE__*/ _interopRequireDefault(require("events"));
var _pQueue = /*#__PURE__*/ _interopRequireDefault(require("p-queue"));
function _assertThisInitialized(self) {
    if (self === void 0) {
        throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
    }
    return self;
}
function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
        throw new TypeError("Cannot call a class as a function");
    }
}
function _getPrototypeOf(o) {
    _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
        return o.__proto__ || Object.getPrototypeOf(o);
    };
    return _getPrototypeOf(o);
}
function _inherits(subClass, superClass) {
    if (typeof superClass !== "function" && superClass !== null) {
        throw new TypeError("Super expression must either be null or a function");
    }
    subClass.prototype = Object.create(superClass && superClass.prototype, {
        constructor: {
            value: subClass,
            writable: true,
            configurable: true
        }
    });
    if (superClass) _setPrototypeOf(subClass, superClass);
}
function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {
        default: obj
    };
}
function _possibleConstructorReturn(self, call) {
    if (call && (_typeof(call) === "object" || typeof call === "function")) {
        return call;
    }
    return _assertThisInitialized(self);
}
function _setPrototypeOf(o, p) {
    _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
        o.__proto__ = p;
        return o;
    };
    return _setPrototypeOf(o, p);
}
var _typeof = function(obj) {
    "@swc/helpers - typeof";
    return obj && typeof Symbol !== "undefined" && obj.constructor === Symbol ? "symbol" : typeof obj;
};
function _isNativeReflectConstruct() {
    if (typeof Reflect === "undefined" || !Reflect.construct) return false;
    if (Reflect.construct.sham) return false;
    if (typeof Proxy === "function") return true;
    try {
        Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function() {}));
        return true;
    } catch (e) {
        return false;
    }
}
function _createSuper(Derived) {
    var hasNativeReflectConstruct = _isNativeReflectConstruct();
    return function _createSuperInternal() {
        var Super = _getPrototypeOf(Derived), result;
        if (hasNativeReflectConstruct) {
            var NewTarget = _getPrototypeOf(this).constructor;
            result = Reflect.construct(Super, arguments, NewTarget);
        } else {
            result = Super.apply(this, arguments);
        }
        return _possibleConstructorReturn(this, result);
    };
}
var Queue = /*#__PURE__*/ function(EventEmitter) {
    "use strict";
    _inherits(Queue, EventEmitter);
    var _super = _createSuper(Queue);
    function Queue(options) {
        _classCallCheck(this, Queue);
        var _this;
        _this = _super.call(this);
        _this._queue = new _pQueue.default({
            concurrency: (options === null || options === void 0 ? void 0 : options.concurrency) || 1
        });
        return _this;
    }
    var _proto = Queue.prototype;
    _proto.queueCommand = function queueCommand(fn) {
        return this._queue.add(fn);
    };
    _proto.isProcessing = function isProcessing() {
        return this._queue.size > 0;
    };
    _proto.empty = function empty() {
        return this._queue.onIdle();
    };
    return Queue;
}(_events.default);