83 lines
3 KiB
JavaScript
83 lines
3 KiB
JavaScript
/** PURE_IMPORTS_START tslib,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
|
|
import * as tslib_1 from "tslib";
|
|
import { OuterSubscriber } from '../OuterSubscriber';
|
|
import { subscribeToResult } from '../util/subscribeToResult';
|
|
export function withLatestFrom() {
|
|
var args = [];
|
|
for (var _i = 0; _i < arguments.length; _i++) {
|
|
args[_i] = arguments[_i];
|
|
}
|
|
return function (source) {
|
|
var project;
|
|
if (typeof args[args.length - 1] === 'function') {
|
|
project = args.pop();
|
|
}
|
|
var observables = args;
|
|
return source.lift(new WithLatestFromOperator(observables, project));
|
|
};
|
|
}
|
|
var WithLatestFromOperator = /*@__PURE__*/ (function () {
|
|
function WithLatestFromOperator(observables, project) {
|
|
this.observables = observables;
|
|
this.project = project;
|
|
}
|
|
WithLatestFromOperator.prototype.call = function (subscriber, source) {
|
|
return source.subscribe(new WithLatestFromSubscriber(subscriber, this.observables, this.project));
|
|
};
|
|
return WithLatestFromOperator;
|
|
}());
|
|
var WithLatestFromSubscriber = /*@__PURE__*/ (function (_super) {
|
|
tslib_1.__extends(WithLatestFromSubscriber, _super);
|
|
function WithLatestFromSubscriber(destination, observables, project) {
|
|
var _this = _super.call(this, destination) || this;
|
|
_this.observables = observables;
|
|
_this.project = project;
|
|
_this.toRespond = [];
|
|
var len = observables.length;
|
|
_this.values = new Array(len);
|
|
for (var i = 0; i < len; i++) {
|
|
_this.toRespond.push(i);
|
|
}
|
|
for (var i = 0; i < len; i++) {
|
|
var observable = observables[i];
|
|
_this.add(subscribeToResult(_this, observable, observable, i));
|
|
}
|
|
return _this;
|
|
}
|
|
WithLatestFromSubscriber.prototype.notifyNext = function (outerValue, innerValue, outerIndex, innerIndex, innerSub) {
|
|
this.values[outerIndex] = innerValue;
|
|
var toRespond = this.toRespond;
|
|
if (toRespond.length > 0) {
|
|
var found = toRespond.indexOf(outerIndex);
|
|
if (found !== -1) {
|
|
toRespond.splice(found, 1);
|
|
}
|
|
}
|
|
};
|
|
WithLatestFromSubscriber.prototype.notifyComplete = function () {
|
|
};
|
|
WithLatestFromSubscriber.prototype._next = function (value) {
|
|
if (this.toRespond.length === 0) {
|
|
var args = [value].concat(this.values);
|
|
if (this.project) {
|
|
this._tryProject(args);
|
|
}
|
|
else {
|
|
this.destination.next(args);
|
|
}
|
|
}
|
|
};
|
|
WithLatestFromSubscriber.prototype._tryProject = function (args) {
|
|
var result;
|
|
try {
|
|
result = this.project.apply(this, args);
|
|
}
|
|
catch (err) {
|
|
this.destination.error(err);
|
|
return;
|
|
}
|
|
this.destination.next(result);
|
|
};
|
|
return WithLatestFromSubscriber;
|
|
}(OuterSubscriber));
|
|
//# sourceMappingURL=withLatestFrom.js.map
|