1 \documentclass{article}
3 % should give a luatexbase error, not lua type error
4 % 2015/10/01 gives attempt to concatenate local 'name' (a nil value)
13 \ifx\directlua\undefined
16 luatexbase.create_callback(nil, "simple", function () end)
17 % a syntax error in the above will cause this not to be reached