define(function(){function d(){this._events=this._events||{};this._maxListeners=this._maxListeners||undefined;
}d.EventEmitter=d;d.prototype._events=undefined;d.prototype._maxListeners=undefined;
d.defaultMaxListeners=10;d.prototype.setMaxListeners=function(f){if(!c(f)||f<0||isNaN(f)){throw TypeError("n must be a positive number");
}this._maxListeners=f;return this;};d.prototype.emit=function(l){var m,k,f,g,h,j;
if(!this._events){this._events={};}if(l==="error"){if(!this._events.error||(a(this._events.error)&&!this._events.error.length)){m=arguments[1];
if(m instanceof Error){throw m;}else{throw TypeError('Uncaught, unspecified "error" event.');
}return false;}}k=this._events[l];if(b(k)){return false;}if(e(k)){switch(arguments.length){case 1:k.call(this);
break;case 2:k.call(this,arguments[1]);break;case 3:k.call(this,arguments[1],arguments[2]);
break;default:f=arguments.length;g=new Array(f-1);for(h=1;h<f;h++){g[h-1]=arguments[h];
}k.apply(this,g);}}else{if(a(k)){f=arguments.length;g=new Array(f-1);for(h=1;h<f;
h++){g[h-1]=arguments[h];}j=k.slice();f=j.length;for(h=0;h<f;h++){j[h].apply(this,g);
}}}return true;};d.prototype.addListener=function(g,h){var f;if(!e(h)){throw TypeError("listener must be a function");
}if(!this._events){this._events={};}if(this._events.newListener){this.emit("newListener",g,e(h.listener)?h.listener:h);
}if(!this._events[g]){this._events[g]=h;}else{if(a(this._events[g])){this._events[g].push(h);
}else{this._events[g]=[this._events[g],h];}}if(a(this._events[g])&&!this._events[g].warned){var f;
if(!b(this._maxListeners)){f=this._maxListeners;}else{f=d.defaultMaxListeners;}if(f&&f>0&&this._events[g].length>f){this._events[g].warned=true;
console.error("(node) warning: possible EventEmitter memory leak detected. %d listeners added. Use emitter.setMaxListeners() to increase limit.",this._events[g].length);
if(typeof console.trace==="function"){console.trace();}}}return this;};d.prototype.on=d.prototype.addListener;
d.prototype.once=function(f,i){if(!e(i)){throw TypeError("listener must be a function");
}var j=false;function h(){this.removeListener(f,h);if(!j){j=true;i.apply(this,arguments);
}}h.listener=i;this.on(f,h);return this;};d.prototype.removeListener=function(h,l){var k,f,j,g;
if(!e(l)){throw TypeError("listener must be a function");}if(!this._events||!this._events[h]){return this;
}k=this._events[h];j=k.length;f=-1;if(k===l||(e(k.listener)&&k.listener===l)){delete this._events[h];
if(this._events.removeListener){this.emit("removeListener",h,l);}}else{if(a(k)){for(g=j;
g-->0;){if(k[g]===l||(k[g].listener&&k[g].listener===l)){f=g;break;}}if(f<0){return this;
}if(k.length===1){k.length=0;delete this._events[h];}else{k.splice(f,1);}if(this._events.removeListener){this.emit("removeListener",h,l);
}}}return this;};d.prototype.removeAllListeners=function(h){var f,g;if(!this._events){return this;
}if(!this._events.removeListener){if(arguments.length===0){this._events={};}else{if(this._events[h]){delete this._events[h];
}}return this;}if(arguments.length===0){for(f in this._events){if(f==="removeListener"){continue;
}this.removeAllListeners(f);}this.removeAllListeners("removeListener");this._events={};
return this;}g=this._events[h];if(e(g)){this.removeListener(h,g);}else{while(g.length){this.removeListener(h,g[g.length-1]);
}}delete this._events[h];return this;};d.prototype.listeners=function(g){var f;if(!this._events||!this._events[g]){f=[];
}else{if(e(this._events[g])){f=[this._events[g]];}else{f=this._events[g].slice();
}}return f;};d.listenerCount=function(h,g){var f;if(!h._events||!h._events[g]){f=0;
}else{if(e(h._events[g])){f=1;}else{f=h._events[g].length;}}return f;};function e(f){return typeof f==="function";
}function c(f){return typeof f==="number";}function a(f){return typeof f==="object"&&f!==null;
}function b(f){return f===void 0;}return new d();});