events: move slow path to separate function too

This keeps in line with how things are done for the fast path and *might* even provide a *slight* performance increase. PR-URL: #785 Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: Evan Lucas <[email protected]>

Author: mscdex

lib/events.js

@@ -101,8 +101,19 @@ function emitThree(handler, isFn, self, arg1, arg2, arg3){
 }
 }
 
+functionemitMany(handler,isFn,self,args){
+if(isFn)
+handler.apply(self,args);
+else{
+varlen=handler.length;
+varlisteners=arrayClone(handler,len);
+for(vari=0;i<len;++i)
+listeners[i].apply(self,args);
+}
+}
+
 EventEmitter.prototype.emit=functionemit(type){
-varer,handler,len,args,i,listeners,events,domain;
+varer,handler,len,args,i,events,domain;
 varneedDomainExit=false;
 
 events=this._events;
@@ -160,14 +171,7 @@ EventEmitter.prototype.emit = function emit(type){
 args=newArray(len-1);
 for(i=1;i<len;i++)
 args[i-1]=arguments[i];
-if(isFn)
-handler.apply(this,args);
-else{
-len=handler.length;
-listeners=arrayClone(handler,len);
-for(i=0;i<len;++i)
-listeners[i].apply(this,args);
-}
+emitMany(handler,isFn,this,args);
 }
 
 if(needDomainExit)