162 lines
6.0 KiB
JavaScript
162 lines
6.0 KiB
JavaScript
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import { __extends, __values } from "tslib";
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import { Observable } from './Observable';
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import { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';
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import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';
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import { arrRemove } from './util/arrRemove';
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import { errorContext } from './util/errorContext';
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var Subject = (function (_super) {
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__extends(Subject, _super);
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function Subject() {
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var _this = _super.call(this) || this;
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_this.closed = false;
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_this.currentObservers = null;
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_this.observers = [];
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_this.isStopped = false;
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_this.hasError = false;
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_this.thrownError = null;
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return _this;
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}
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Subject.prototype.lift = function (operator) {
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var subject = new AnonymousSubject(this, this);
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subject.operator = operator;
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return subject;
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};
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Subject.prototype._throwIfClosed = function () {
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if (this.closed) {
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throw new ObjectUnsubscribedError();
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}
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};
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Subject.prototype.next = function (value) {
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var _this = this;
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errorContext(function () {
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var e_1, _a;
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_this._throwIfClosed();
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if (!_this.isStopped) {
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if (!_this.currentObservers) {
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_this.currentObservers = Array.from(_this.observers);
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}
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try {
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for (var _b = __values(_this.currentObservers), _c = _b.next(); !_c.done; _c = _b.next()) {
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var observer = _c.value;
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observer.next(value);
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}
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}
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catch (e_1_1) { e_1 = { error: e_1_1 }; }
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finally {
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try {
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if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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}
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finally { if (e_1) throw e_1.error; }
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}
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}
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});
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};
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Subject.prototype.error = function (err) {
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var _this = this;
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errorContext(function () {
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_this._throwIfClosed();
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if (!_this.isStopped) {
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_this.hasError = _this.isStopped = true;
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_this.thrownError = err;
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var observers = _this.observers;
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while (observers.length) {
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observers.shift().error(err);
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}
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}
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});
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};
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Subject.prototype.complete = function () {
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var _this = this;
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errorContext(function () {
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_this._throwIfClosed();
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if (!_this.isStopped) {
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_this.isStopped = true;
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var observers = _this.observers;
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while (observers.length) {
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observers.shift().complete();
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}
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}
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});
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};
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Subject.prototype.unsubscribe = function () {
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this.isStopped = this.closed = true;
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this.observers = this.currentObservers = null;
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};
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Object.defineProperty(Subject.prototype, "observed", {
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get: function () {
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var _a;
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return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0;
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},
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enumerable: false,
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configurable: true
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});
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Subject.prototype._trySubscribe = function (subscriber) {
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this._throwIfClosed();
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return _super.prototype._trySubscribe.call(this, subscriber);
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};
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Subject.prototype._subscribe = function (subscriber) {
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this._throwIfClosed();
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this._checkFinalizedStatuses(subscriber);
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return this._innerSubscribe(subscriber);
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};
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Subject.prototype._innerSubscribe = function (subscriber) {
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var _this = this;
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var _a = this, hasError = _a.hasError, isStopped = _a.isStopped, observers = _a.observers;
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if (hasError || isStopped) {
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return EMPTY_SUBSCRIPTION;
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}
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this.currentObservers = null;
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observers.push(subscriber);
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return new Subscription(function () {
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_this.currentObservers = null;
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arrRemove(observers, subscriber);
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});
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};
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Subject.prototype._checkFinalizedStatuses = function (subscriber) {
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var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, isStopped = _a.isStopped;
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if (hasError) {
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subscriber.error(thrownError);
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}
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else if (isStopped) {
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subscriber.complete();
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}
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};
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Subject.prototype.asObservable = function () {
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var observable = new Observable();
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observable.source = this;
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return observable;
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};
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Subject.create = function (destination, source) {
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return new AnonymousSubject(destination, source);
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};
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return Subject;
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}(Observable));
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export { Subject };
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var AnonymousSubject = (function (_super) {
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__extends(AnonymousSubject, _super);
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function AnonymousSubject(destination, source) {
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var _this = _super.call(this) || this;
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_this.destination = destination;
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_this.source = source;
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return _this;
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}
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AnonymousSubject.prototype.next = function (value) {
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var _a, _b;
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(_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);
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};
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AnonymousSubject.prototype.error = function (err) {
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var _a, _b;
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(_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);
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};
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AnonymousSubject.prototype.complete = function () {
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var _a, _b;
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(_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);
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};
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AnonymousSubject.prototype._subscribe = function (subscriber) {
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var _a, _b;
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return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION;
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};
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return AnonymousSubject;
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}(Subject));
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export { AnonymousSubject };
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//# sourceMappingURL=Subject.js.map
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