Notification.js
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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var empty_1 = require("./observable/empty");
var of_1 = require("./observable/of");
var throwError_1 = require("./observable/throwError");
var NotificationKind;
(function (NotificationKind) {
NotificationKind["NEXT"] = "N";
NotificationKind["ERROR"] = "E";
NotificationKind["COMPLETE"] = "C";
})(NotificationKind = exports.NotificationKind || (exports.NotificationKind = {}));
var Notification = (function () {
function Notification(kind, value, error) {
this.kind = kind;
this.value = value;
this.error = error;
this.hasValue = kind === 'N';
}
Notification.prototype.observe = function (observer) {
switch (this.kind) {
case 'N':
return observer.next && observer.next(this.value);
case 'E':
return observer.error && observer.error(this.error);
case 'C':
return observer.complete && observer.complete();
}
};
Notification.prototype.do = function (next, error, complete) {
var kind = this.kind;
switch (kind) {
case 'N':
return next && next(this.value);
case 'E':
return error && error(this.error);
case 'C':
return complete && complete();
}
};
Notification.prototype.accept = function (nextOrObserver, error, complete) {
if (nextOrObserver && typeof nextOrObserver.next === 'function') {
return this.observe(nextOrObserver);
}
else {
return this.do(nextOrObserver, error, complete);
}
};
Notification.prototype.toObservable = function () {
var kind = this.kind;
switch (kind) {
case 'N':
return of_1.of(this.value);
case 'E':
return throwError_1.throwError(this.error);
case 'C':
return empty_1.empty();
}
throw new Error('unexpected notification kind value');
};
Notification.createNext = function (value) {
if (typeof value !== 'undefined') {
return new Notification('N', value);
}
return Notification.undefinedValueNotification;
};
Notification.createError = function (err) {
return new Notification('E', undefined, err);
};
Notification.createComplete = function () {
return Notification.completeNotification;
};
Notification.completeNotification = new Notification('C');
Notification.undefinedValueNotification = new Notification('N', undefined);
return Notification;
}());
exports.Notification = Notification;
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