@lifaon/rx-js-light

Version:
Blazing fast Observables
32 lines (31 loc) • 1.01 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.mergeAllObservable = void 0;
function mergeAllObservable(subscribe, maxNumberOfSubscriptions) {
  if (maxNumberOfSubscriptions === void 0) {
    maxNumberOfSubscriptions = Number.POSITIVE_INFINITY;
  }
  maxNumberOfSubscriptions = Math.max(0, maxNumberOfSubscriptions);
  return function (emit) {
    var running = true;
    var childrenUnsubscribeFunctions = [];
    var unsubscribe = subscribe(function (childSubscribe) {
      childrenUnsubscribeFunctions.push(childSubscribe(emit));
      if (childrenUnsubscribeFunctions.length > maxNumberOfSubscriptions) {
        childrenUnsubscribeFunctions.shift()();
      }
    });
    return function () {
      if (running) {
        running = false;
        unsubscribe();
        for (var i = 0, l = childrenUnsubscribeFunctions.length; i < l; i++) {
          childrenUnsubscribeFunctions[i]();
        }
      }
    };
  };
}
exports.mergeAllObservable = mergeAllObservable;