117 lines
No EOL
4 KiB
JavaScript
117 lines
No EOL
4 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var canReportError_1 = require("./util/canReportError");
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var toSubscriber_1 = require("./util/toSubscriber");
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var observable_1 = require("./symbol/observable");
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var pipe_1 = require("./util/pipe");
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var config_1 = require("./config");
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var Observable = (function () {
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function Observable(subscribe) {
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this._isScalar = false;
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if (subscribe) {
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this._subscribe = subscribe;
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}
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}
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Observable.prototype.lift = function (operator) {
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var observable = new Observable();
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observable.source = this;
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observable.operator = operator;
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return observable;
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};
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Observable.prototype.subscribe = function (observerOrNext, error, complete) {
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var operator = this.operator;
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var sink = toSubscriber_1.toSubscriber(observerOrNext, error, complete);
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if (operator) {
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sink.add(operator.call(sink, this.source));
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}
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else {
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sink.add(this.source || (config_1.config.useDeprecatedSynchronousErrorHandling && !sink.syncErrorThrowable) ?
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this._subscribe(sink) :
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this._trySubscribe(sink));
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}
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if (config_1.config.useDeprecatedSynchronousErrorHandling) {
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if (sink.syncErrorThrowable) {
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sink.syncErrorThrowable = false;
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if (sink.syncErrorThrown) {
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throw sink.syncErrorValue;
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}
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}
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}
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return sink;
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};
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Observable.prototype._trySubscribe = function (sink) {
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try {
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return this._subscribe(sink);
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}
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catch (err) {
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if (config_1.config.useDeprecatedSynchronousErrorHandling) {
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sink.syncErrorThrown = true;
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sink.syncErrorValue = err;
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}
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if (canReportError_1.canReportError(sink)) {
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sink.error(err);
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}
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else {
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console.warn(err);
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}
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}
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};
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Observable.prototype.forEach = function (next, promiseCtor) {
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var _this = this;
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promiseCtor = getPromiseCtor(promiseCtor);
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return new promiseCtor(function (resolve, reject) {
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var subscription;
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subscription = _this.subscribe(function (value) {
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try {
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next(value);
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}
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catch (err) {
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reject(err);
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if (subscription) {
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subscription.unsubscribe();
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}
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}
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}, reject, resolve);
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});
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};
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Observable.prototype._subscribe = function (subscriber) {
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var source = this.source;
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return source && source.subscribe(subscriber);
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};
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Observable.prototype[observable_1.observable] = function () {
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return this;
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};
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Observable.prototype.pipe = function () {
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var operations = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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operations[_i] = arguments[_i];
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}
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if (operations.length === 0) {
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return this;
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}
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return pipe_1.pipeFromArray(operations)(this);
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};
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Observable.prototype.toPromise = function (promiseCtor) {
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var _this = this;
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promiseCtor = getPromiseCtor(promiseCtor);
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return new promiseCtor(function (resolve, reject) {
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var value;
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_this.subscribe(function (x) { return value = x; }, function (err) { return reject(err); }, function () { return resolve(value); });
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});
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};
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Observable.create = function (subscribe) {
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return new Observable(subscribe);
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};
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return Observable;
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}());
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exports.Observable = Observable;
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function getPromiseCtor(promiseCtor) {
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if (!promiseCtor) {
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promiseCtor = config_1.config.Promise || Promise;
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}
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if (!promiseCtor) {
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throw new Error('no Promise impl found');
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}
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return promiseCtor;
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}
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//# sourceMappingURL=Observable.js.map
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