109 lines
4.1 KiB
JavaScript
109 lines
4.1 KiB
JavaScript
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"use strict";
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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var __spreadArray = (this && this.__spreadArray) || function (to, from) {
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for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
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to[j] = from[i];
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return to;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.share = void 0;
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var innerFrom_1 = require("../observable/innerFrom");
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var Subject_1 = require("../Subject");
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var Subscriber_1 = require("../Subscriber");
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var lift_1 = require("../util/lift");
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function share(options) {
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if (options === void 0) { options = {}; }
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var _a = options.connector, connector = _a === void 0 ? function () { return new Subject_1.Subject(); } : _a, _b = options.resetOnError, resetOnError = _b === void 0 ? true : _b, _c = options.resetOnComplete, resetOnComplete = _c === void 0 ? true : _c, _d = options.resetOnRefCountZero, resetOnRefCountZero = _d === void 0 ? true : _d;
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return function (wrapperSource) {
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var connection;
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var resetConnection;
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var subject;
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var refCount = 0;
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var hasCompleted = false;
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var hasErrored = false;
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var cancelReset = function () {
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resetConnection === null || resetConnection === void 0 ? void 0 : resetConnection.unsubscribe();
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resetConnection = undefined;
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};
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var reset = function () {
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cancelReset();
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connection = subject = undefined;
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hasCompleted = hasErrored = false;
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};
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var resetAndUnsubscribe = function () {
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var conn = connection;
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reset();
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conn === null || conn === void 0 ? void 0 : conn.unsubscribe();
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};
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return lift_1.operate(function (source, subscriber) {
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refCount++;
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if (!hasErrored && !hasCompleted) {
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cancelReset();
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}
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var dest = (subject = subject !== null && subject !== void 0 ? subject : connector());
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subscriber.add(function () {
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refCount--;
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if (refCount === 0 && !hasErrored && !hasCompleted) {
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resetConnection = handleReset(resetAndUnsubscribe, resetOnRefCountZero);
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}
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});
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dest.subscribe(subscriber);
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if (!connection &&
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refCount > 0) {
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connection = new Subscriber_1.SafeSubscriber({
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next: function (value) { return dest.next(value); },
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error: function (err) {
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hasErrored = true;
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cancelReset();
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resetConnection = handleReset(reset, resetOnError, err);
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dest.error(err);
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},
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complete: function () {
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hasCompleted = true;
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cancelReset();
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resetConnection = handleReset(reset, resetOnComplete);
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dest.complete();
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},
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});
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innerFrom_1.innerFrom(source).subscribe(connection);
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}
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})(wrapperSource);
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};
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}
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exports.share = share;
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function handleReset(reset, on) {
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var args = [];
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for (var _i = 2; _i < arguments.length; _i++) {
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args[_i - 2] = arguments[_i];
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}
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if (on === true) {
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reset();
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return;
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}
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if (on === false) {
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return;
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}
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var onSubscriber = new Subscriber_1.SafeSubscriber({
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next: function () {
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onSubscriber.unsubscribe();
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reset();
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},
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});
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return on.apply(void 0, __spreadArray([], __read(args))).subscribe(onSubscriber);
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}
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//# sourceMappingURL=share.js.map
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