@lifaon/rx-js-light

Version:
Blazing fast Observables
43 lines (42 loc) • 1.18 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.notificationsToLastValueObservable = void 0;
var async_unsubscribe_1 = require("../../../../../../../../misc/helpers/async-unsubscribe.cjs");
function notificationsToLastValueObservable(subscribe, onError) {
  return function (emit) {
    var running = true;
    var clear = function () {
      if (running) {
        running = false;
        (0, async_unsubscribe_1.asyncUnsubscribe)(function () {
          return unsubscribe;
        });
      }
    };
    var lastValue;
    var unsubscribe = subscribe(function (notification) {
      switch (notification.name) {
        case 'next':
          lastValue = notification.value;
          break;
        case 'complete':
          emit(lastValue);
          clear();
          break;
        case 'error':
          if (onError !== void 0) {
            onError(notification.value, function (value) {
              if (running) {
                emit(value);
              }
            });
          }
          break;
      }
    });
    return clear;
  };
}
exports.notificationsToLastValueObservable = notificationsToLastValueObservable;