minetest.get_content_id: error if the node does not exist (#9458)

If a mod creator makes a typing mistake, this function now causes an error instead of returning the id of "ignore".

diff --git a/src/script/lua_api/l_item.cpp b/src/script/lua_api/l_item.cpp
index a76e5527a17f45ca8b36e48266b82df2a4deb082..0c174feca3fe5e25b49ecc4fca68059b70b743d4 100644 (file)
--- a/src/script/lua_api/l_item.cpp
+++ b/src/script/lua_api/l_item.cpp
@@ -612,9 +612,11 @@ int ModApiItemMod::l_get_content_id(lua_State *L)
        std::string name = luaL_checkstring(L, 1);
 
        const NodeDefManager *ndef = getGameDef(L)->getNodeDefManager();
-       content_t c = ndef->getId(name);
+       content_t content_id;
+       if (!ndef->getId(name, content_id))
+               throw LuaError("Unknown node: " + name);
 
-       lua_pushinteger(L, c);
+       lua_pushinteger(L, content_id);
        return 1; /* number of results */
 }