diff options
Diffstat (limited to 'node_modules/rxjs/dist/esm/internal/Subject.js')
| -rw-r--r-- | node_modules/rxjs/dist/esm/internal/Subject.js | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/node_modules/rxjs/dist/esm/internal/Subject.js b/node_modules/rxjs/dist/esm/internal/Subject.js new file mode 100644 index 0000000..4295f07 --- /dev/null +++ b/node_modules/rxjs/dist/esm/internal/Subject.js @@ -0,0 +1,134 @@ +import { Observable } from './Observable'; +import { Subscription, EMPTY_SUBSCRIPTION } from './Subscription'; +import { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError'; +import { arrRemove } from './util/arrRemove'; +import { errorContext } from './util/errorContext'; +export class Subject extends Observable { + constructor() { + super(); + this.closed = false; + this.currentObservers = null; + this.observers = []; + this.isStopped = false; + this.hasError = false; + this.thrownError = null; + } + lift(operator) { + const subject = new AnonymousSubject(this, this); + subject.operator = operator; + return subject; + } + _throwIfClosed() { + if (this.closed) { + throw new ObjectUnsubscribedError(); + } + } + next(value) { + errorContext(() => { + this._throwIfClosed(); + if (!this.isStopped) { + if (!this.currentObservers) { + this.currentObservers = Array.from(this.observers); + } + for (const observer of this.currentObservers) { + observer.next(value); + } + } + }); + } + error(err) { + errorContext(() => { + this._throwIfClosed(); + if (!this.isStopped) { + this.hasError = this.isStopped = true; + this.thrownError = err; + const { observers } = this; + while (observers.length) { + observers.shift().error(err); + } + } + }); + } + complete() { + errorContext(() => { + this._throwIfClosed(); + if (!this.isStopped) { + this.isStopped = true; + const { observers } = this; + while (observers.length) { + observers.shift().complete(); + } + } + }); + } + unsubscribe() { + this.isStopped = this.closed = true; + this.observers = this.currentObservers = null; + } + get observed() { + var _a; + return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0; + } + _trySubscribe(subscriber) { + this._throwIfClosed(); + return super._trySubscribe(subscriber); + } + _subscribe(subscriber) { + this._throwIfClosed(); + this._checkFinalizedStatuses(subscriber); + return this._innerSubscribe(subscriber); + } + _innerSubscribe(subscriber) { + const { hasError, isStopped, observers } = this; + if (hasError || isStopped) { + return EMPTY_SUBSCRIPTION; + } + this.currentObservers = null; + observers.push(subscriber); + return new Subscription(() => { + this.currentObservers = null; + arrRemove(observers, subscriber); + }); + } + _checkFinalizedStatuses(subscriber) { + const { hasError, thrownError, isStopped } = this; + if (hasError) { + subscriber.error(thrownError); + } + else if (isStopped) { + subscriber.complete(); + } + } + asObservable() { + const observable = new Observable(); + observable.source = this; + return observable; + } +} +Subject.create = (destination, source) => { + return new AnonymousSubject(destination, source); +}; +export class AnonymousSubject extends Subject { + constructor(destination, source) { + super(); + this.destination = destination; + this.source = source; + } + next(value) { + var _a, _b; + (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value); + } + error(err) { + var _a, _b; + (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err); + } + complete() { + var _a, _b; + (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a); + } + _subscribe(subscriber) { + var _a, _b; + return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION; + } +} +//# sourceMappingURL=Subject.js.map
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