116 lines
3.2 KiB
JavaScript
116 lines
3.2 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.flatMapError = undefined;
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exports.recoverWith = recoverWith;
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exports.throwError = throwError;
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var _Stream = require('../Stream');
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var _Stream2 = _interopRequireDefault(_Stream);
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var _SafeSink = require('../sink/SafeSink');
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var _SafeSink2 = _interopRequireDefault(_SafeSink);
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var _dispose = require('../disposable/dispose');
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var dispose = _interopRequireWildcard(_dispose);
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var _tryEvent = require('../source/tryEvent');
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var tryEvent = _interopRequireWildcard(_tryEvent);
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var _PropagateTask = require('../scheduler/PropagateTask');
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var _PropagateTask2 = _interopRequireDefault(_PropagateTask);
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { newObj[key] = obj[key]; } } } newObj.default = obj; return newObj; } }
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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/**
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* If stream encounters an error, recover and continue with items from stream
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* returned by f.
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* @param {function(error:*):Stream} f function which returns a new stream
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* @param {Stream} stream
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* @returns {Stream} new stream which will recover from an error by calling f
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*/
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function recoverWith(f, stream) {
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return new _Stream2.default(new RecoverWith(f, stream.source));
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} /** @license MIT License (c) copyright 2010-2016 original author or authors */
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/** @author Brian Cavalier */
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/** @author John Hann */
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var flatMapError = exports.flatMapError = recoverWith;
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/**
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* Create a stream containing only an error
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* @param {*} e error value, preferably an Error or Error subtype
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* @returns {Stream} new stream containing only an error
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*/
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function throwError(e) {
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return new _Stream2.default(new ErrorSource(e));
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}
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function ErrorSource(e) {
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this.value = e;
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}
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ErrorSource.prototype.run = function (sink, scheduler) {
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return scheduler.asap(new _PropagateTask2.default(runError, this.value, sink));
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};
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function runError(t, e, sink) {
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sink.error(t, e);
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}
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function RecoverWith(f, source) {
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this.f = f;
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this.source = source;
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}
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RecoverWith.prototype.run = function (sink, scheduler) {
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return new RecoverWithSink(this.f, this.source, sink, scheduler);
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};
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function RecoverWithSink(f, source, sink, scheduler) {
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this.f = f;
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this.sink = new _SafeSink2.default(sink);
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this.scheduler = scheduler;
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this.disposable = source.run(this, scheduler);
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}
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RecoverWithSink.prototype.event = function (t, x) {
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tryEvent.tryEvent(t, x, this.sink);
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};
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RecoverWithSink.prototype.end = function (t, x) {
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tryEvent.tryEnd(t, x, this.sink);
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};
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RecoverWithSink.prototype.error = function (t, e) {
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var nextSink = this.sink.disable();
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dispose.tryDispose(t, this.disposable, this.sink);
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this._startNext(t, e, nextSink);
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};
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RecoverWithSink.prototype._startNext = function (t, x, sink) {
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try {
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this.disposable = this._continue(this.f, x, sink);
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} catch (e) {
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sink.error(t, e);
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}
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};
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RecoverWithSink.prototype._continue = function (f, x, sink) {
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var stream = f(x);
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return stream.source.run(sink, this.scheduler);
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};
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RecoverWithSink.prototype.dispose = function () {
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return this.disposable.dispose();
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}; |