debugtraceback

The debug.traceback() function returns a string with a traceback of the Lua call stack. It starts with a message describing the traceback and then lists all active function calls in the stack.

Here is an example usage of the debug.traceback() function:

function foo()
   bar()
end

function bar()
   print(debug.traceback())
end

foo()

In this example, the foo() function calls the bar() function, which then prints the traceback using debug.traceback(). The traceback shows the call stack, indicating that the call to bar() originated from the call to foo()