35 lines
1 KiB
JavaScript
35 lines
1 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var Observable_1 = require("../Observable");
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var from_1 = require("./from");
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var empty_1 = require("./empty");
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function using(resourceFactory, observableFactory) {
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return new Observable_1.Observable(function (subscriber) {
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var resource;
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try {
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resource = resourceFactory();
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}
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catch (err) {
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subscriber.error(err);
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return undefined;
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}
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var result;
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try {
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result = observableFactory(resource);
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}
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catch (err) {
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subscriber.error(err);
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return undefined;
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}
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var source = result ? from_1.from(result) : empty_1.EMPTY;
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var subscription = source.subscribe(subscriber);
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return function () {
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subscription.unsubscribe();
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if (resource) {
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resource.unsubscribe();
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}
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};
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});
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}
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exports.using = using;
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//# sourceMappingURL=using.js.map
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