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- {"ast":null,"code":"import { Observable } from './Observable';\nimport { Subscription, EMPTY_SUBSCRIPTION } from './Subscription';\nimport { ObjectUnsubscribedError } from './util/ObjectUnsubscribedError';\nimport { arrRemove } from './util/arrRemove';\nimport { errorContext } from './util/errorContext';\nexport class Subject extends Observable {\n constructor() {\n super();\n this.closed = false;\n this.currentObservers = null;\n this.observers = [];\n this.isStopped = false;\n this.hasError = false;\n this.thrownError = null;\n }\n lift(operator) {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n }\n _throwIfClosed() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n }\n next(value) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n if (!this.currentObservers) {\n this.currentObservers = Array.from(this.observers);\n }\n for (const observer of this.currentObservers) {\n observer.next(value);\n }\n }\n });\n }\n error(err) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n const {\n observers\n } = this;\n while (observers.length) {\n observers.shift().error(err);\n }\n }\n });\n }\n complete() {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n const {\n observers\n } = this;\n while (observers.length) {\n observers.shift().complete();\n }\n }\n });\n }\n unsubscribe() {\n this.isStopped = this.closed = true;\n this.observers = this.currentObservers = null;\n }\n get observed() {\n var _a;\n return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0;\n }\n _trySubscribe(subscriber) {\n this._throwIfClosed();\n return super._trySubscribe(subscriber);\n }\n _subscribe(subscriber) {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n }\n _innerSubscribe(subscriber) {\n const {\n hasError,\n isStopped,\n observers\n } = this;\n if (hasError || isStopped) {\n return EMPTY_SUBSCRIPTION;\n }\n this.currentObservers = null;\n observers.push(subscriber);\n return new Subscription(() => {\n this.currentObservers = null;\n arrRemove(observers, subscriber);\n });\n }\n _checkFinalizedStatuses(subscriber) {\n const {\n hasError,\n thrownError,\n isStopped\n } = this;\n if (hasError) {\n subscriber.error(thrownError);\n } else if (isStopped) {\n subscriber.complete();\n }\n }\n asObservable() {\n const observable = new Observable();\n observable.source = this;\n return observable;\n }\n}\nSubject.create = (destination, source) => {\n return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n constructor(destination, source) {\n super();\n this.destination = destination;\n this.source = source;\n }\n next(value) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);\n }\n error(err) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);\n }\n complete() {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);\n }\n _subscribe(subscriber) {\n var _a, _b;\n return (_b = (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber)) !== null && _b !== void 0 ? _b : EMPTY_SUBSCRIPTION;\n 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'./util/errorContext';\nexport class Subject extends Observable {\n constructor() {\n super();\n this.closed = false;\n this.currentObservers = null;\n this.observers = [];\n this.isStopped = false;\n this.hasError = false;\n this.thrownError = null;\n }\n lift(operator) {\n const subject = new AnonymousSubject(this, this);\n subject.operator = operator;\n return subject;\n }\n _throwIfClosed() {\n if (this.closed) {\n throw new ObjectUnsubscribedError();\n }\n }\n next(value) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n if (!this.currentObservers) {\n this.currentObservers = Array.from(this.observers);\n }\n for (const observer of this.currentObservers) {\n observer.next(value);\n }\n }\n });\n }\n error(err) {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.hasError = this.isStopped = true;\n this.thrownError = err;\n const { observers } = this;\n while (observers.length) {\n observers.shift().error(err);\n }\n }\n });\n }\n complete() {\n errorContext(() => {\n this._throwIfClosed();\n if (!this.isStopped) {\n this.isStopped = true;\n const { observers } = this;\n while (observers.length) {\n observers.shift().complete();\n }\n }\n });\n }\n unsubscribe() {\n this.isStopped = this.closed = true;\n this.observers = this.currentObservers = null;\n }\n get observed() {\n var _a;\n return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0;\n }\n _trySubscribe(subscriber) {\n this._throwIfClosed();\n return super._trySubscribe(subscriber);\n }\n _subscribe(subscriber) {\n this._throwIfClosed();\n this._checkFinalizedStatuses(subscriber);\n return this._innerSubscribe(subscriber);\n }\n _innerSubscribe(subscriber) {\n const { hasError, isStopped, observers } = this;\n if (hasError || isStopped) {\n return EMPTY_SUBSCRIPTION;\n }\n this.currentObservers = null;\n observers.push(subscriber);\n return new Subscription(() => {\n this.currentObservers = null;\n arrRemove(observers, subscriber);\n });\n }\n _checkFinalizedStatuses(subscriber) {\n const { hasError, thrownError, isStopped } = this;\n if (hasError) {\n subscriber.error(thrownError);\n }\n else if (isStopped) {\n subscriber.complete();\n }\n }\n asObservable() {\n const observable = new Observable();\n observable.source = this;\n return observable;\n }\n}\nSubject.create = (destination, source) => {\n return new AnonymousSubject(destination, source);\n};\nexport class AnonymousSubject extends Subject {\n constructor(destination, source) {\n super();\n this.destination = destination;\n this.source = source;\n }\n next(value) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.next) === null || _b === void 0 ? void 0 : _b.call(_a, value);\n }\n error(err) {\n var _a, _b;\n (_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.error) === null || _b === void 0 ? void 0 : _b.call(_a, err);\n }\n complete() {\n var _a, _b;\n (_b = (_a = this.destination) 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