From: ShadowNinja <shadowninja@minetest.net>
Date: Sun, 13 Apr 2014 21:50:46 +0000 (-0400)
Subject: Add checks for nil in minetest.after
X-Git-Url: http://81.2.79.47:8989/gitweb/?a=commitdiff_plain;h=dcafad2f736aa9b7174bdf7313735d89b981e0c6;p=zefram%2Fminetest%2Fminetest_engine.git

Add checks for nil in minetest.after
---

diff --git a/builtin/misc.lua b/builtin/misc.lua
index 1d5e146c..f91f5e09 100644
--- a/builtin/misc.lua
+++ b/builtin/misc.lua
@@ -21,6 +21,8 @@ minetest.register_globalstep(function(dtime)
 end)
 
 function minetest.after(time, func, ...)
+	assert(tonumber(time) and type(func) == "function",
+			"Invalid minetest.after invocation")
 	table.insert(minetest.timers_to_add, {time=time, func=func, args={...}})
 end