From f594c91ca3fa847bfb9b8d66199ed4fa629c60ec Mon Sep 17 00:00:00 2001
From: HybridDog <ovvv@web.de>
Date: Mon, 4 Nov 2019 12:16:08 +0100
Subject: [PATCH] Add a warning about string nodenames abm values, they should
 not occur

---
 init.lua | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/init.lua b/init.lua
index ab2869e..3db6584 100644
--- a/init.lua
+++ b/init.lua
@@ -1122,6 +1122,11 @@ local function get_grow(name)
 	local is = {}
 	for i = 1,#minetest.registered_abms do
 		local ad = minetest.registered_abms[i]
+		if type(ad.nodenames) ~= "table" then
+			minetest.log("warning", "ABM nodenames is not a table: " ..
+				dump(ad))
+			return
+		end
 		if ad.chance > 1
 		and table.indexof(ad.nodenames, name) ~= -1 then
 			is[#is+1] = ad.action