From cd92bf4385047e7957019767af0caafd2b885221 Mon Sep 17 00:00:00 2001
From: Manu Mtz-Almeida <manu.valladolid@gmail.com>
Date: Sun, 31 May 2015 04:34:21 +0200
Subject: [PATCH] Adds panic when using too many handlers

---
 routergroup.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/routergroup.go b/routergroup.go
index 8afd29e..74dc82f 100644
--- a/routergroup.go
+++ b/routergroup.go
@@ -148,6 +148,9 @@ func (group *RouterGroup) createStaticHandler(relativePath string, fs http.FileS
 
 func (group *RouterGroup) combineHandlers(handlers HandlersChain) HandlersChain {
 	finalSize := len(group.Handlers) + len(handlers)
+	if finalSize >= AbortIndex {
+		panic("too many handlers")
+	}
 	mergedHandlers := make(HandlersChain, finalSize)
 	copy(mergedHandlers, group.Handlers)
 	copy(mergedHandlers[len(group.Handlers):], handlers)