@andreasnicolaou/reactive-event-source
Version:
A lightweight reactive wrapper around EventSource using RxJS, providing automatic reconnection and buffering.
1,244 lines (1,190 loc) • 86.7 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.reactiveEventSource = {}));
})(this, (function (exports) { 'use strict';
/******************************************************************************
Copyright (c) Microsoft Corporation.
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
***************************************************************************** */
/* global Reflect, Promise, SuppressedError, Symbol, Iterator */
var extendStatics = function(d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
function __extends(d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
}
function __awaiter(thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
}
function __generator(thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
}
function __values(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
}
function __read(o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
}
function __spreadArray(to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
}
function __await(v) {
return this instanceof __await ? (this.v = v, this) : new __await(v);
}
function __asyncGenerator(thisArg, _arguments, generator) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var g = generator.apply(thisArg, _arguments || []), i, q = [];
return i = Object.create((typeof AsyncIterator === "function" ? AsyncIterator : Object).prototype), verb("next"), verb("throw"), verb("return", awaitReturn), i[Symbol.asyncIterator] = function () { return this; }, i;
function awaitReturn(f) { return function (v) { return Promise.resolve(v).then(f, reject); }; }
function verb(n, f) { if (g[n]) { i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; if (f) i[n] = f(i[n]); } }
function resume(n, v) { try { step(g[n](v)); } catch (e) { settle(q[0][3], e); } }
function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
function fulfill(value) { resume("next", value); }
function reject(value) { resume("throw", value); }
function settle(f, v) { if (f(v), q.shift(), q.length) resume(q[0][0], q[0][1]); }
}
function __asyncValues(o) {
if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined.");
var m = o[Symbol.asyncIterator], i;
return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); }
}
typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) {
var e = new Error(message);
return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e;
};
function isFunction(value) {
return typeof value === 'function';
}
function createErrorClass(createImpl) {
var _super = function (instance) {
Error.call(instance);
instance.stack = new Error().stack;
};
var ctorFunc = createImpl(_super);
ctorFunc.prototype = Object.create(Error.prototype);
ctorFunc.prototype.constructor = ctorFunc;
return ctorFunc;
}
var UnsubscriptionError = createErrorClass(function (_super) {
return function UnsubscriptionErrorImpl(errors) {
_super(this);
this.message = errors
? errors.length + " errors occurred during unsubscription:\n" + errors.map(function (err, i) { return i + 1 + ") " + err.toString(); }).join('\n ')
: '';
this.name = 'UnsubscriptionError';
this.errors = errors;
};
});
function arrRemove(arr, item) {
if (arr) {
var index = arr.indexOf(item);
0 <= index && arr.splice(index, 1);
}
}
var Subscription = (function () {
function Subscription(initialTeardown) {
this.initialTeardown = initialTeardown;
this.closed = false;
this._parentage = null;
this._finalizers = null;
}
Subscription.prototype.unsubscribe = function () {
var e_1, _a, e_2, _b;
var errors;
if (!this.closed) {
this.closed = true;
var _parentage = this._parentage;
if (_parentage) {
this._parentage = null;
if (Array.isArray(_parentage)) {
try {
for (var _parentage_1 = __values(_parentage), _parentage_1_1 = _parentage_1.next(); !_parentage_1_1.done; _parentage_1_1 = _parentage_1.next()) {
var parent_1 = _parentage_1_1.value;
parent_1.remove(this);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_parentage_1_1 && !_parentage_1_1.done && (_a = _parentage_1.return)) _a.call(_parentage_1);
}
finally { if (e_1) throw e_1.error; }
}
}
else {
_parentage.remove(this);
}
}
var initialFinalizer = this.initialTeardown;
if (isFunction(initialFinalizer)) {
try {
initialFinalizer();
}
catch (e) {
errors = e instanceof UnsubscriptionError ? e.errors : [e];
}
}
var _finalizers = this._finalizers;
if (_finalizers) {
this._finalizers = null;
try {
for (var _finalizers_1 = __values(_finalizers), _finalizers_1_1 = _finalizers_1.next(); !_finalizers_1_1.done; _finalizers_1_1 = _finalizers_1.next()) {
var finalizer = _finalizers_1_1.value;
try {
execFinalizer(finalizer);
}
catch (err) {
errors = errors !== null && errors !== void 0 ? errors : [];
if (err instanceof UnsubscriptionError) {
errors = __spreadArray(__spreadArray([], __read(errors)), __read(err.errors));
}
else {
errors.push(err);
}
}
}
}
catch (e_2_1) { e_2 = { error: e_2_1 }; }
finally {
try {
if (_finalizers_1_1 && !_finalizers_1_1.done && (_b = _finalizers_1.return)) _b.call(_finalizers_1);
}
finally { if (e_2) throw e_2.error; }
}
}
if (errors) {
throw new UnsubscriptionError(errors);
}
}
};
Subscription.prototype.add = function (teardown) {
var _a;
if (teardown && teardown !== this) {
if (this.closed) {
execFinalizer(teardown);
}
else {
if (teardown instanceof Subscription) {
if (teardown.closed || teardown._hasParent(this)) {
return;
}
teardown._addParent(this);
}
(this._finalizers = (_a = this._finalizers) !== null && _a !== void 0 ? _a : []).push(teardown);
}
}
};
Subscription.prototype._hasParent = function (parent) {
var _parentage = this._parentage;
return _parentage === parent || (Array.isArray(_parentage) && _parentage.includes(parent));
};
Subscription.prototype._addParent = function (parent) {
var _parentage = this._parentage;
this._parentage = Array.isArray(_parentage) ? (_parentage.push(parent), _parentage) : _parentage ? [_parentage, parent] : parent;
};
Subscription.prototype._removeParent = function (parent) {
var _parentage = this._parentage;
if (_parentage === parent) {
this._parentage = null;
}
else if (Array.isArray(_parentage)) {
arrRemove(_parentage, parent);
}
};
Subscription.prototype.remove = function (teardown) {
var _finalizers = this._finalizers;
_finalizers && arrRemove(_finalizers, teardown);
if (teardown instanceof Subscription) {
teardown._removeParent(this);
}
};
Subscription.EMPTY = (function () {
var empty = new Subscription();
empty.closed = true;
return empty;
})();
return Subscription;
}());
var EMPTY_SUBSCRIPTION = Subscription.EMPTY;
function isSubscription(value) {
return (value instanceof Subscription ||
(value && 'closed' in value && isFunction(value.remove) && isFunction(value.add) && isFunction(value.unsubscribe)));
}
function execFinalizer(finalizer) {
if (isFunction(finalizer)) {
finalizer();
}
else {
finalizer.unsubscribe();
}
}
var config = {
Promise: undefined};
var timeoutProvider = {
setTimeout: function (handler, timeout) {
var args = [];
for (var _i = 2; _i < arguments.length; _i++) {
args[_i - 2] = arguments[_i];
}
return setTimeout.apply(void 0, __spreadArray([handler, timeout], __read(args)));
},
clearTimeout: function (handle) {
return (clearTimeout)(handle);
},
delegate: undefined,
};
function reportUnhandledError(err) {
timeoutProvider.setTimeout(function () {
{
throw err;
}
});
}
function noop() { }
function errorContext(cb) {
{
cb();
}
}
var Subscriber = (function (_super) {
__extends(Subscriber, _super);
function Subscriber(destination) {
var _this = _super.call(this) || this;
_this.isStopped = false;
if (destination) {
_this.destination = destination;
if (isSubscription(destination)) {
destination.add(_this);
}
}
else {
_this.destination = EMPTY_OBSERVER;
}
return _this;
}
Subscriber.create = function (next, error, complete) {
return new SafeSubscriber(next, error, complete);
};
Subscriber.prototype.next = function (value) {
if (this.isStopped) ;
else {
this._next(value);
}
};
Subscriber.prototype.error = function (err) {
if (this.isStopped) ;
else {
this.isStopped = true;
this._error(err);
}
};
Subscriber.prototype.complete = function () {
if (this.isStopped) ;
else {
this.isStopped = true;
this._complete();
}
};
Subscriber.prototype.unsubscribe = function () {
if (!this.closed) {
this.isStopped = true;
_super.prototype.unsubscribe.call(this);
this.destination = null;
}
};
Subscriber.prototype._next = function (value) {
this.destination.next(value);
};
Subscriber.prototype._error = function (err) {
try {
this.destination.error(err);
}
finally {
this.unsubscribe();
}
};
Subscriber.prototype._complete = function () {
try {
this.destination.complete();
}
finally {
this.unsubscribe();
}
};
return Subscriber;
}(Subscription));
var ConsumerObserver = (function () {
function ConsumerObserver(partialObserver) {
this.partialObserver = partialObserver;
}
ConsumerObserver.prototype.next = function (value) {
var partialObserver = this.partialObserver;
if (partialObserver.next) {
try {
partialObserver.next(value);
}
catch (error) {
handleUnhandledError(error);
}
}
};
ConsumerObserver.prototype.error = function (err) {
var partialObserver = this.partialObserver;
if (partialObserver.error) {
try {
partialObserver.error(err);
}
catch (error) {
handleUnhandledError(error);
}
}
else {
handleUnhandledError(err);
}
};
ConsumerObserver.prototype.complete = function () {
var partialObserver = this.partialObserver;
if (partialObserver.complete) {
try {
partialObserver.complete();
}
catch (error) {
handleUnhandledError(error);
}
}
};
return ConsumerObserver;
}());
var SafeSubscriber = (function (_super) {
__extends(SafeSubscriber, _super);
function SafeSubscriber(observerOrNext, error, complete) {
var _this = _super.call(this) || this;
var partialObserver;
if (isFunction(observerOrNext) || !observerOrNext) {
partialObserver = {
next: (observerOrNext !== null && observerOrNext !== void 0 ? observerOrNext : undefined),
error: error !== null && error !== void 0 ? error : undefined,
complete: complete !== null && complete !== void 0 ? complete : undefined,
};
}
else {
{
partialObserver = observerOrNext;
}
}
_this.destination = new ConsumerObserver(partialObserver);
return _this;
}
return SafeSubscriber;
}(Subscriber));
function handleUnhandledError(error) {
{
reportUnhandledError(error);
}
}
function defaultErrorHandler(err) {
throw err;
}
var EMPTY_OBSERVER = {
closed: true,
next: noop,
error: defaultErrorHandler,
complete: noop,
};
var observable = (function () { return (typeof Symbol === 'function' && Symbol.observable) || '@@observable'; })();
function identity(x) {
return x;
}
function pipeFromArray(fns) {
if (fns.length === 0) {
return identity;
}
if (fns.length === 1) {
return fns[0];
}
return function piped(input) {
return fns.reduce(function (prev, fn) { return fn(prev); }, input);
};
}
var Observable = (function () {
function Observable(subscribe) {
if (subscribe) {
this._subscribe = subscribe;
}
}
Observable.prototype.lift = function (operator) {
var observable = new Observable();
observable.source = this;
observable.operator = operator;
return observable;
};
Observable.prototype.subscribe = function (observerOrNext, error, complete) {
var _this = this;
var subscriber = isSubscriber(observerOrNext) ? observerOrNext : new SafeSubscriber(observerOrNext, error, complete);
errorContext(function () {
var _a = _this, operator = _a.operator, source = _a.source;
subscriber.add(operator
?
operator.call(subscriber, source)
: source
?
_this._subscribe(subscriber)
:
_this._trySubscribe(subscriber));
});
return subscriber;
};
Observable.prototype._trySubscribe = function (sink) {
try {
return this._subscribe(sink);
}
catch (err) {
sink.error(err);
}
};
Observable.prototype.forEach = function (next, promiseCtor) {
var _this = this;
promiseCtor = getPromiseCtor(promiseCtor);
return new promiseCtor(function (resolve, reject) {
var subscriber = new SafeSubscriber({
next: function (value) {
try {
next(value);
}
catch (err) {
reject(err);
subscriber.unsubscribe();
}
},
error: reject,
complete: resolve,
});
_this.subscribe(subscriber);
});
};
Observable.prototype._subscribe = function (subscriber) {
var _a;
return (_a = this.source) === null || _a === void 0 ? void 0 : _a.subscribe(subscriber);
};
Observable.prototype[observable] = function () {
return this;
};
Observable.prototype.pipe = function () {
var operations = [];
for (var _i = 0; _i < arguments.length; _i++) {
operations[_i] = arguments[_i];
}
return pipeFromArray(operations)(this);
};
Observable.prototype.toPromise = function (promiseCtor) {
var _this = this;
promiseCtor = getPromiseCtor(promiseCtor);
return new promiseCtor(function (resolve, reject) {
var value;
_this.subscribe(function (x) { return (value = x); }, function (err) { return reject(err); }, function () { return resolve(value); });
});
};
Observable.create = function (subscribe) {
return new Observable(subscribe);
};
return Observable;
}());
function getPromiseCtor(promiseCtor) {
var _a;
return (_a = promiseCtor !== null && promiseCtor !== void 0 ? promiseCtor : config.Promise) !== null && _a !== void 0 ? _a : Promise;
}
function isObserver(value) {
return value && isFunction(value.next) && isFunction(value.error) && isFunction(value.complete);
}
function isSubscriber(value) {
return (value && value instanceof Subscriber) || (isObserver(value) && isSubscription(value));
}
function hasLift(source) {
return isFunction(source === null || source === void 0 ? void 0 : source.lift);
}
function operate(init) {
return function (source) {
if (hasLift(source)) {
return source.lift(function (liftedSource) {
try {
return init(liftedSource, this);
}
catch (err) {
this.error(err);
}
});
}
throw new TypeError('Unable to lift unknown Observable type');
};
}
function createOperatorSubscriber(destination, onNext, onComplete, onError, onFinalize) {
return new OperatorSubscriber(destination, onNext, onComplete, onError, onFinalize);
}
var OperatorSubscriber = (function (_super) {
__extends(OperatorSubscriber, _super);
function OperatorSubscriber(destination, onNext, onComplete, onError, onFinalize, shouldUnsubscribe) {
var _this = _super.call(this, destination) || this;
_this.onFinalize = onFinalize;
_this.shouldUnsubscribe = shouldUnsubscribe;
_this._next = onNext
? function (value) {
try {
onNext(value);
}
catch (err) {
destination.error(err);
}
}
: _super.prototype._next;
_this._error = onError
? function (err) {
try {
onError(err);
}
catch (err) {
destination.error(err);
}
finally {
this.unsubscribe();
}
}
: _super.prototype._error;
_this._complete = onComplete
? function () {
try {
onComplete();
}
catch (err) {
destination.error(err);
}
finally {
this.unsubscribe();
}
}
: _super.prototype._complete;
return _this;
}
OperatorSubscriber.prototype.unsubscribe = function () {
var _a;
if (!this.shouldUnsubscribe || this.shouldUnsubscribe()) {
var closed_1 = this.closed;
_super.prototype.unsubscribe.call(this);
!closed_1 && ((_a = this.onFinalize) === null || _a === void 0 ? void 0 : _a.call(this));
}
};
return OperatorSubscriber;
}(Subscriber));
var ObjectUnsubscribedError = createErrorClass(function (_super) {
return function ObjectUnsubscribedErrorImpl() {
_super(this);
this.name = 'ObjectUnsubscribedError';
this.message = 'object unsubscribed';
};
});
var Subject = (function (_super) {
__extends(Subject, _super);
function Subject() {
var _this = _super.call(this) || this;
_this.closed = false;
_this.currentObservers = null;
_this.observers = [];
_this.isStopped = false;
_this.hasError = false;
_this.thrownError = null;
return _this;
}
Subject.prototype.lift = function (operator) {
var subject = new AnonymousSubject(this, this);
subject.operator = operator;
return subject;
};
Subject.prototype._throwIfClosed = function () {
if (this.closed) {
throw new ObjectUnsubscribedError();
}
};
Subject.prototype.next = function (value) {
var _this = this;
errorContext(function () {
var e_1, _a;
_this._throwIfClosed();
if (!_this.isStopped) {
if (!_this.currentObservers) {
_this.currentObservers = Array.from(_this.observers);
}
try {
for (var _b = __values(_this.currentObservers), _c = _b.next(); !_c.done; _c = _b.next()) {
var observer = _c.value;
observer.next(value);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
}
});
};
Subject.prototype.error = function (err) {
var _this = this;
errorContext(function () {
_this._throwIfClosed();
if (!_this.isStopped) {
_this.hasError = _this.isStopped = true;
_this.thrownError = err;
var observers = _this.observers;
while (observers.length) {
observers.shift().error(err);
}
}
});
};
Subject.prototype.complete = function () {
var _this = this;
errorContext(function () {
_this._throwIfClosed();
if (!_this.isStopped) {
_this.isStopped = true;
var observers = _this.observers;
while (observers.length) {
observers.shift().complete();
}
}
});
};
Subject.prototype.unsubscribe = function () {
this.isStopped = this.closed = true;
this.observers = this.currentObservers = null;
};
Object.defineProperty(Subject.prototype, "observed", {
get: function () {
var _a;
return ((_a = this.observers) === null || _a === void 0 ? void 0 : _a.length) > 0;
},
enumerable: false,
configurable: true
});
Subject.prototype._trySubscribe = function (subscriber) {
this._throwIfClosed();
return _super.prototype._trySubscribe.call(this, subscriber);
};
Subject.prototype._subscribe = function (subscriber) {
this._throwIfClosed();
this._checkFinalizedStatuses(subscriber);
return this._innerSubscribe(subscriber);
};
Subject.prototype._innerSubscribe = function (subscriber) {
var _this = this;
var _a = this, hasError = _a.hasError, isStopped = _a.isStopped, observers = _a.observers;
if (hasError || isStopped) {
return EMPTY_SUBSCRIPTION;
}
this.currentObservers = null;
observers.push(subscriber);
return new Subscription(function () {
_this.currentObservers = null;
arrRemove(observers, subscriber);
});
};
Subject.prototype._checkFinalizedStatuses = function (subscriber) {
var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, isStopped = _a.isStopped;
if (hasError) {
subscriber.error(thrownError);
}
else if (isStopped) {
subscriber.complete();
}
};
Subject.prototype.asObservable = function () {
var observable = new Observable();
observable.source = this;
return observable;
};
Subject.create = function (destination, source) {
return new AnonymousSubject(destination, source);
};
return Subject;
}(Observable));
var AnonymousSubject = (function (_super) {
__extends(AnonymousSubject, _super);
function AnonymousSubject(destination, source) {
var _this = _super.call(this) || this;
_this.destination = destination;
_this.source = source;
return _this;
}
AnonymousSubject.prototype.next = function (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);
};
AnonymousSubject.prototype.error = function (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);
};
AnonymousSubject.prototype.complete = function () {
var _a, _b;
(_b = (_a = this.destination) === null || _a === void 0 ? void 0 : _a.complete) === null || _b === void 0 ? void 0 : _b.call(_a);
};
AnonymousSubject.prototype._subscribe = function (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;
};
return AnonymousSubject;
}(Subject));
var BehaviorSubject = (function (_super) {
__extends(BehaviorSubject, _super);
function BehaviorSubject(_value) {
var _this = _super.call(this) || this;
_this._value = _value;
return _this;
}
Object.defineProperty(BehaviorSubject.prototype, "value", {
get: function () {
return this.getValue();
},
enumerable: false,
configurable: true
});
BehaviorSubject.prototype._subscribe = function (subscriber) {
var subscription = _super.prototype._subscribe.call(this, subscriber);
!subscription.closed && subscriber.next(this._value);
return subscription;
};
BehaviorSubject.prototype.getValue = function () {
var _a = this, hasError = _a.hasError, thrownError = _a.thrownError, _value = _a._value;
if (hasError) {
throw thrownError;
}
this._throwIfClosed();
return _value;
};
BehaviorSubject.prototype.next = function (value) {
_super.prototype.next.call(this, (this._value = value));
};
return BehaviorSubject;
}(Subject));
var dateTimestampProvider = {
now: function () {
return (dateTimestampProvider.delegate || Date).now();
},
delegate: undefined,
};
var ReplaySubject = (function (_super) {
__extends(ReplaySubject, _super);
function ReplaySubject(_bufferSize, _windowTime, _timestampProvider) {
if (_bufferSize === void 0) { _bufferSize = Infinity; }
if (_windowTime === void 0) { _windowTime = Infinity; }
if (_timestampProvider === void 0) { _timestampProvider = dateTimestampProvider; }
var _this = _super.call(this) || this;
_this._bufferSize = _bufferSize;
_this._windowTime = _windowTime;
_this._timestampProvider = _timestampProvider;
_this._buffer = [];
_this._infiniteTimeWindow = true;
_this._infiniteTimeWindow = _windowTime === Infinity;
_this._bufferSize = Math.max(1, _bufferSize);
_this._windowTime = Math.max(1, _windowTime);
return _this;
}
ReplaySubject.prototype.next = function (value) {
var _a = this, isStopped = _a.isStopped, _buffer = _a._buffer, _infiniteTimeWindow = _a._infiniteTimeWindow, _timestampProvider = _a._timestampProvider, _windowTime = _a._windowTime;
if (!isStopped) {
_buffer.push(value);
!_infiniteTimeWindow && _buffer.push(_timestampProvider.now() + _windowTime);
}
this._trimBuffer();
_super.prototype.next.call(this, value);
};
ReplaySubject.prototype._subscribe = function (subscriber) {
this._throwIfClosed();
this._trimBuffer();
var subscription = this._innerSubscribe(subscriber);
var _a = this, _infiniteTimeWindow = _a._infiniteTimeWindow, _buffer = _a._buffer;
var copy = _buffer.slice();
for (var i = 0; i < copy.length && !subscriber.closed; i += _infiniteTimeWindow ? 1 : 2) {
subscriber.next(copy[i]);
}
this._checkFinalizedStatuses(subscriber);
return subscription;
};
ReplaySubject.prototype._trimBuffer = function () {
var _a = this, _bufferSize = _a._bufferSize, _timestampProvider = _a._timestampProvider, _buffer = _a._buffer, _infiniteTimeWindow = _a._infiniteTimeWindow;
var adjustedBufferSize = (_infiniteTimeWindow ? 1 : 2) * _bufferSize;
_bufferSize < Infinity && adjustedBufferSize < _buffer.length && _buffer.splice(0, _buffer.length - adjustedBufferSize);
if (!_infiniteTimeWindow) {
var now = _timestampProvider.now();
var last = 0;
for (var i = 1; i < _buffer.length && _buffer[i] <= now; i += 2) {
last = i;
}
last && _buffer.splice(0, last + 1);
}
};
return ReplaySubject;
}(Subject));
var Action = (function (_super) {
__extends(Action, _super);
function Action(scheduler, work) {
return _super.call(this) || this;
}
Action.prototype.schedule = function (state, delay) {
return this;
};
return Action;
}(Subscription));
var intervalProvider = {
setInterval: function (handler, timeout) {
var args = [];
for (var _i = 2; _i < arguments.length; _i++) {
args[_i - 2] = arguments[_i];
}
return setInterval.apply(void 0, __spreadArray([handler, timeout], __read(args)));
},
clearInterval: function (handle) {
return (clearInterval)(handle);
},
delegate: undefined,
};
var AsyncAction = (function (_super) {
__extends(AsyncAction, _super);
function AsyncAction(scheduler, work) {
var _this = _super.call(this, scheduler, work) || this;
_this.scheduler = scheduler;
_this.work = work;
_this.pending = false;
return _this;
}
AsyncAction.prototype.schedule = function (state, delay) {
var _a;
if (delay === void 0) { delay = 0; }
if (this.closed) {
return this;
}
this.state = state;
var id = this.id;
var scheduler = this.scheduler;
if (id != null) {
this.id = this.recycleAsyncId(scheduler, id, delay);
}
this.pending = true;
this.delay = delay;
this.id = (_a = this.id) !== null && _a !== void 0 ? _a : this.requestAsyncId(scheduler, this.id, delay);
return this;
};
AsyncAction.prototype.requestAsyncId = function (scheduler, _id, delay) {
if (delay === void 0) { delay = 0; }
return intervalProvider.setInterval(scheduler.flush.bind(scheduler, this), delay);
};
AsyncAction.prototype.recycleAsyncId = function (_scheduler, id, delay) {
if (delay === void 0) { delay = 0; }
if (delay != null && this.delay === delay && this.pending === false) {
return id;
}
if (id != null) {
intervalProvider.clearInterval(id);
}
return undefined;
};
AsyncAction.prototype.execute = function (state, delay) {
if (this.closed) {
return new Error('executing a cancelled action');
}
this.pending = false;
var error = this._execute(state, delay);
if (error) {
return error;
}
else if (this.pending === false && this.id != null) {
this.id = this.recycleAsyncId(this.scheduler, this.id, null);
}
};
AsyncAction.prototype._execute = function (state, _delay) {
var errored = false;
var errorValue;
try {
this.work(state);
}
catch (e) {
errored = true;
errorValue = e ? e : new Error('Scheduled action threw falsy error');
}
if (errored) {
this.unsubscribe();
return errorValue;
}
};
AsyncAction.prototype.unsubscribe = function () {
if (!this.closed) {
var _a = this, id = _a.id, scheduler = _a.scheduler;
var actions = scheduler.actions;
this.work = this.state = this.scheduler = null;
this.pending = false;
arrRemove(actions, this);
if (id != null) {
this.id = this.recycleAsyncId(scheduler, id, null);
}
this.delay = null;
_super.prototype.unsubscribe.call(this);
}
};
return AsyncAction;
}(Action));
var Scheduler = (function () {
function Scheduler(schedulerActionCtor, now) {
if (now === void 0) { now = Scheduler.now; }
this.schedulerActionCtor = schedulerActionCtor;
this.now = now;
}
Scheduler.prototype.schedule = function (work, delay, state) {
if (delay === void 0) { delay = 0; }
return new this.schedulerActionCtor(this, work).schedule(state, delay);
};
Scheduler.now = dateTimestampProvider.now;
return Scheduler;
}());
var AsyncScheduler = (function (_super) {
__extends(AsyncScheduler, _super);
function AsyncScheduler(SchedulerAction, now) {
if (now === void 0) { now = Scheduler.now; }
var _this = _super.call(this, SchedulerAction, now) || this;
_this.actions = [];
_this._active = false;
return _this;
}
AsyncScheduler.prototype.flush = function (action) {
var actions = this.actions;
if (this._active) {
actions.push(action);
return;
}
var error;
this._active = true;
do {
if ((error = action.execute(action.state, action.delay))) {
break;
}
} while ((action = actions.shift()));
this._active = false;
if (error) {
while ((action = actions.shift())) {
action.unsubscribe();
}
throw error;
}
};
return AsyncScheduler;
}(Scheduler));
var asyncScheduler = new AsyncScheduler(AsyncAction);
var async = asyncScheduler;
var EMPTY = new Observable(function (subscriber) { return subscriber.complete(); });
function isScheduler(value) {
return value && isFunction(value.schedule);
}
function last(arr) {
return arr[arr.length - 1];
}
function popScheduler(args) {
return isScheduler(last(args)) ? args.pop() : undefined;
}
function popNumber(args, defaultValue) {
return typeof last(args) === 'number' ? args.pop() : defaultValue;
}
var isArrayLike = (function (x) { return x && typeof x.length === 'number' && typeof x !== 'function'; });
function isPromise(value) {
return isFunction(value === null || value === void 0 ? void 0 : value.then);
}
function isInteropObservable(input) {
return isFunction(input[observable]);
}
function isAsyncIterable(obj) {
return Symbol.asyncIterator && isFunction(obj === null || obj === void 0 ? void 0 : obj[Symbol.asyncIterator]);
}
function createInvalidObservableTypeError(input) {
return new TypeError("You provided " + (input !== null && typeof input === 'object' ? 'an invalid object' : "'" + input + "'") + " where a stream was expected. You can provide an Observable, Promise, ReadableStream, Array, AsyncIterable, or Iterable.");
}
function getSymbolIterator() {
if (typeof Symbol !== 'function' || !Symbol.iterator) {
return '@@iterator';
}
return Symbol.iterator;
}
var iterator = getSymbolIterator();
function isIterable(input) {
return isFunction(input === null || input === void 0 ? void 0 : input[iterator]);
}
function readableStreamLikeToAsyncGenerator(readableStream) {
return __asyncGenerator(this, arguments, function readableStreamLikeToAsyncGenerator_1() {
var reader, _a, value, done;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
reader = readableStream.getReader();
_b.label = 1;
case 1:
_b.trys.push([1, , 9, 10]);
_b.label = 2;
case 2:
return [4, __await(reader.read())];
case 3:
_a = _b.sent(), value = _a.value, done = _a.done;
if (!done) return [3, 5];
return [4, __await(void 0)];
case 4: return [2, _b.sent()];
case 5: return [4, __await(value)];
case 6: return [4, _b.sent()];
case 7:
_b.sent();
return [3, 2];
case 8: return [3, 10];
case 9:
reader.releaseLock();
return [7];
case 10: return [2];
}
});
});
}
function isReadableStreamLike(obj) {
return isFunction(obj === null || obj === void 0 ? void 0 : obj.getReader);
}
function innerFrom(input) {
if (input instanceof Observable) {
return input;
}
if (input != null) {
if (isInteropObservable(input)) {
return fromInteropObservable(input);
}
if (isArrayLike(input)) {
return fromArrayLike(input);
}
if (isPromise(input)) {
return fromPromise(input);
}
if (isAsyncIterable(input)) {
return fromAsyncIterable(input);
}
if (isIterable(input)) {
return fromIterable(input);
}
if (isReadableStreamLike(input)) {
return fromReadableStreamLike(input);
}
}
throw createInvalidObservableTypeError(input);
}
function fromInteropObservable(obj) {
return new Observable(function (subscriber) {
var obs = obj[observable]();
if (isFunction(obs.subscribe)) {
return obs.subscribe(subscriber);
}
throw new TypeError('Provided object does not correctly implement Symbol.observable');
});
}
function fromArrayLike(array) {
return new Observable(function (subscriber) {
for (var i = 0; i < array.length && !subscriber.closed; i++) {
subscriber.next(array[i]);
}
subscriber.complete();
});
}
function fromPromise(promise) {
return new Observable(function (subscriber) {
promise
.then(function (value) {
if (!subscriber.closed) {
subscriber.next(value);
subscriber.complete();
}
}, function (err) { return subscriber.error(err); })
.then(null, reportUnhandledError);
});
}
function fromIterable(iterable) {
return new Observable(function (subscriber) {
var e_1, _a;
try {
for (var iterable_1 = __values(iterable), iterable_1_1 = iterable_1.next(); !iterable_1_1.done; iterable_1_1 = iterable_1.next()) {
var value = iterable_1_1.value;
subscriber.next(value);
if (subscri