Lua's stack trace includes an indication that 1 or more tail calls happened, but not how many
$ cat tailrec.lua
function f(g,n)
if n == 0 then
error("oh no")
end
return g(g,n-1)
end
f(f,5)
$ lua tailrec.lua
lua: tailrec.lua:3: oh no
stack traceback:
[C]: in function 'error'
tailrec.lua:3: in function 'f'
(...tail calls...)
tailrec.lua:7: in main chunk
[C]: in ?
