(function(){var k=function(){};k.prototype={isCancellation:!0,message:"The task has been cancelled."};typeof __jscex__async__taskIdSeed==="undefined"&&(__jscex__async__taskIdSeed=0);var l=function(b){return typeof b.start==="function"&&typeof b.addEventListener==="function"&&typeof b.removeEventListener==="function"&&typeof b.complete==="function"},j=function(b){if(!b.modules.async){var d=function(){};d.prototype={register:function(a){this.isCancellationRequested&&a();if(!this._handlers)this._handlers=
[];this._handlers.push(a)},unregister:function(a){this._handlers&&(a=this._handlers.indexOf(a),a>=0&&this._handlers.splice(a,1))},cancel:function(){if(!this.isCancellationRequested){this.isCancellationRequested=!0;var a=this._handlers;delete this._handlers;for(var f=0;f<a.length;f++)try{a[f]()}catch(c){b.logger.warn("[WARNING] Cancellation handler threw an error: "+c)}}},throwIfCancellationRequested:function(){if(this.isCancellationRequested)throw new k;}};var e=function(a){this.id=++__jscex__async__taskIdSeed;
this._delegate=a;this._listeners={};this.status="ready"};e.prototype={start:function(){if(this.status!="ready")throw Error('Task can only be started in "ready" status.');this.status="running";this._delegate(this)},complete:function(a,f){if(this.status!="running")throw Error('The "complete" method can only be called in "running" status.');var c=this._listeners;delete this._listeners;if(a=="success")this.result=f,this.status="succeeded",this._notify("success",c.success);else if(a=="failure")this.error=
f,this.status=f.isCancellation?"canceled":"faulted",this._notify("failure",c.failure);else throw Error("Unsupported type: "+a);this._notify("complete",c.complete);this.error&&!c.failure&&!c.complete&&b.logger.warn("[WARNING] An unhandled error occurred: "+this.error)},_notify:function(a,f){if(f)for(var c=0;c<f.length;c++)try{f[c](this)}catch(i){b.logger.warn("[WARNING] The task's "+a+" listener threw an error: "+i)}},addEventListener:function(a,b){this._listeners&&(this._listeners[a]||(this._listeners[a]=
[]),this._listeners[a].push(b))},removeEventListener:function(a,b){if(this._listeners){var c=this._listeners[a];if(c){var i=c.indexOf(b);i>=0&&c.splice(i,1)}}}};e.create=function(a){return new e(a)};e.isTask=l;var h=function(){};h.prototype={Start:function(a,b){return e.create(function(c){b.next(a,function(a,b){if(a=="normal"||a=="return")c.complete("success",b);else if(a=="throw")c.complete("failure",b);else throw Error("Unsupported type: "+a);})})},Bind:function(a,b){return{next:function(c,e){var d=
function(a){if(a.error)e("throw",a.error);else{var d;try{d=b.call(c,a.result)}catch(h){e("throw",h);return}d.next(c,e)}};a.status=="ready"?(a.addEventListener("complete",d),a.start()):a.status=="running"?a.addEventListener("complete",d):d(a)}}}};for(var g in b.BuilderBase.prototype)h.prototype[g]=b.BuilderBase.prototype[g];if(!b.Async)b.Async={};g=b.Async;g.CancellationToken=d;g.CanceledError=k;g.Task=e;g.AsyncBuilder=h;if(!b.builders)b.builders={};b.binders.async="$await";b.builders.async=new h;
b.modules.async=!0}},m=typeof define==="function"&&!define.amd,n=typeof require==="function"&&typeof define==="function"&&define.amd;if(typeof require==="function"&&typeof module!=="undefined"&&module.exports)module.exports.init=function(b){if(!b.modules.builderbase){if(typeof __dirname==="string")try{require.paths.unshift(__dirname)}catch(d){try{module.paths.unshift(__dirname)}catch(e){}}require("jscex-builderbase").init(b)}j(b)};else if(m)define("jscex-async",["jscex-builderbase"],function(b,d,
e){e.exports.init=function(d){d.modules.builderbase||b("jscex-builderbase").init(d);j(d)}});else if(n)define("jscex-async",["jscex-builderbase"],function(b){return{init:function(d){d.modules.builderbase||b.init(d);j(d)}}});else{if(typeof Jscex==="undefined")throw Error('Missing the root object, please load "jscex" module first.');if(!Jscex.modules.builderbase)throw Error('Missing essential components, please initialize "builderbase" module first.');j(Jscex)}})();