Error stack tracebacks?

[tisba]

Hi there!

(little disclaimer first: I'm not terribly familiar with go)

I'm struggling a bit on how to get proper tracebacks for errors using go-lua.

Giving this hello.lua file, containing:

print("Hello World")

function foo()
  print("Hello, I'm foo!")
  bar()
end

foo()

…run with lua hello.lua gives me:

Hello World
Hello, I'm foo!
lua: hello.lua:5: attempt to call global 'bar' (a nil value)
stack traceback:
	hello.lua:5: in function 'foo'
	hello.lua:8: in main chunk
	[C]: in ?

If I run this with the example provided in the README, I get:

go run lua-test.go
Hello World
Hello, I'm foo!
2017/08/03 11:38:42 runtime error: hello.lua:6: attempt to call a nil value

How can I get a comparable traceback with go-lua? Something that can be presented to a user. Are there more examples somewhere?