From: Steinar H. Gunderson <sgunderson@bigfoot.com>
Date: Wed, 7 Oct 2015 23:41:34 +0000 (+0200)
Subject: Work around a crash caused by GC.
X-Git-Tag: 1.0.0~271
X-Git-Url: https://git.sesse.net/?p=nageru;a=commitdiff_plain;h=5eb38312bd754f8542889f12786ee81a297c13f1

Work around a crash caused by GC.
---

diff --git a/theme.cpp b/theme.cpp
index 09797a6..acfb27c 100644
--- a/theme.cpp
+++ b/theme.cpp
@@ -103,6 +103,11 @@ int EffectChain_add_effect(lua_State* L)
 	}
 
 	lua_settop(L, 2);  // Return the effect itself.
+
+	// Make sure Lua doesn't garbage-collect it away.
+	lua_pushvalue(L, -1);
+	luaL_ref(L, LUA_REGISTRYINDEX);  // TODO: leak?
+
 	return 1;
 }