From 8a77ea1007acfbeb40f9c01b5ee7b39c698ffa8a Mon Sep 17 00:00:00 2001
From: Alex Szpakowski <slime73@gmail.com>
Date: Sat, 16 Sep 2017 20:01:48 -0300
Subject: [PATCH] Improve the error message when a type other than a table is
 given as the 3rd arg to newCanvas.

--HG--
branch : minor
---
 src/modules/graphics/wrap_Graphics.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/modules/graphics/wrap_Graphics.cpp b/src/modules/graphics/wrap_Graphics.cpp
index c5af63025..8da39ea79 100644
--- a/src/modules/graphics/wrap_Graphics.cpp
+++ b/src/modules/graphics/wrap_Graphics.cpp
@@ -1144,6 +1144,8 @@ int w_newCanvas(lua_State *L)
 
 	if (!lua_isnoneornil(L, startidx))
 	{
+		luaL_checktype(L, startidx, LUA_TTABLE);
+
 		settings.pixeldensity = (float) luax_numberflag(L, startidx, "pixeldensity", settings.pixeldensity);
 		settings.msaa = luax_intflag(L, startidx, "msaa", settings.msaa);