rxjs
Version:
Reactive Extensions for modern JavaScript
186 lines • 6.8 kB
JavaScript
;
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
to[j] = from[i];
return to;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.EMPTY_OBSERVER = exports.SafeSubscriber = exports.Subscriber = void 0;
var isFunction_1 = require("./util/isFunction");
var Subscription_1 = require("./Subscription");
var config_1 = require("./config");
var reportUnhandledError_1 = require("./util/reportUnhandledError");
var noop_1 = require("./util/noop");
var NotificationFactories_1 = require("./NotificationFactories");
var timeoutProvider_1 = require("./scheduler/timeoutProvider");
var errorContext_1 = require("./util/errorContext");
var Subscriber = (function (_super) {
__extends(Subscriber, _super);
function Subscriber(destination) {
var _this = _super.call(this) || this;
_this.isStopped = false;
if (destination) {
_this.destination = destination;
if (Subscription_1.isSubscription(destination)) {
destination.add(_this);
}
}
else {
_this.destination = exports.EMPTY_OBSERVER;
}
return _this;
}
Subscriber.create = function (next, error, complete) {
return new SafeSubscriber(next, error, complete);
};
Subscriber.prototype.next = function (value) {
if (this.isStopped) {
handleStoppedNotification(NotificationFactories_1.nextNotification(value), this);
}
else {
this._next(value);
}
};
Subscriber.prototype.error = function (err) {
if (this.isStopped) {
handleStoppedNotification(NotificationFactories_1.errorNotification(err), this);
}
else {
this.isStopped = true;
this._error(err);
}
};
Subscriber.prototype.complete = function () {
if (this.isStopped) {
handleStoppedNotification(NotificationFactories_1.COMPLETE_NOTIFICATION, this);
}
else {
this.isStopped = true;
this._complete();
}
};
Subscriber.prototype.unsubscribe = function () {
if (!this.closed) {
this.isStopped = true;
_super.prototype.unsubscribe.call(this);
this.destination = null;
}
};
Subscriber.prototype._next = function (value) {
this.destination.next(value);
};
Subscriber.prototype._error = function (err) {
try {
this.destination.error(err);
}
finally {
this.unsubscribe();
}
};
Subscriber.prototype._complete = function () {
try {
this.destination.complete();
}
finally {
this.unsubscribe();
}
};
return Subscriber;
}(Subscription_1.Subscription));
exports.Subscriber = Subscriber;
var SafeSubscriber = (function (_super) {
__extends(SafeSubscriber, _super);
function SafeSubscriber(observerOrNext, error, complete) {
var _this = _super.call(this) || this;
var next;
if (isFunction_1.isFunction(observerOrNext)) {
next = observerOrNext;
}
else if (observerOrNext) {
(next = observerOrNext.next, error = observerOrNext.error, complete = observerOrNext.complete);
var context_1;
if (_this && config_1.config.useDeprecatedNextContext) {
context_1 = Object.create(observerOrNext);
context_1.unsubscribe = function () { return _this.unsubscribe(); };
}
else {
context_1 = observerOrNext;
}
next = next === null || next === void 0 ? void 0 : next.bind(context_1);
error = error === null || error === void 0 ? void 0 : error.bind(context_1);
complete = complete === null || complete === void 0 ? void 0 : complete.bind(context_1);
}
_this.destination = {
next: next ? wrapForErrorHandling(next, _this) : noop_1.noop,
error: wrapForErrorHandling(error !== null && error !== void 0 ? error : defaultErrorHandler, _this),
complete: complete ? wrapForErrorHandling(complete, _this) : noop_1.noop,
};
return _this;
}
return SafeSubscriber;
}(Subscriber));
exports.SafeSubscriber = SafeSubscriber;
function wrapForErrorHandling(handler, instance) {
return function () {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
try {
handler.apply(void 0, __spreadArray([], __read(args)));
}
catch (err) {
if (config_1.config.useDeprecatedSynchronousErrorHandling) {
errorContext_1.captureError(err);
}
else {
reportUnhandledError_1.reportUnhandledError(err);
}
}
};
}
function defaultErrorHandler(err) {
throw err;
}
function handleStoppedNotification(notification, subscriber) {
var onStoppedNotification = config_1.config.onStoppedNotification;
onStoppedNotification && timeoutProvider_1.timeoutProvider.setTimeout(function () { return onStoppedNotification(notification, subscriber); });
}
exports.EMPTY_OBSERVER = {
closed: true,
next: noop_1.noop,
error: defaultErrorHandler,
complete: noop_1.noop,
};
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