StackTracePlus

StackTracePlus provides enhanced stack traces for [Lua 5.1, Lua 5.2, Lua 5.3][1], [LuaJIT][2] and [OpenResty][4].

StackTracePlus can be used as a replacement for debug.traceback. It gives detailed information about locals, tries to guess function names when they’re not available, etc, so, instead of

lua5.1.exe: D:\trunk_git\sources\stacktraceplus\test\test.lua:10: attempt to concatenate a nil value
stack traceback:
	D:\trunk_git\sources\stacktraceplus\test\test.lua:10: in function <D:\trunk_git\sources\stacktraceplus\test\test.lua:7>
	(tail call): ?
	D:\trunk_git\sources\stacktraceplus\test\test.lua:15: in main chunk
	[C]: ?

you’ll get

lua5.1.exe: D:\trunk_git\sources\stacktraceplus\test\test.lua:10: attempt to concatenate a nil value
Stack Traceback
===============
(2)  C function 'function: 00A8F418'
(3) Lua function 'g' at file 'D:\trunk_git\sources\stacktraceplus\test\test.lua:10' (best guess)
	Local variables:
	 fun = table module
	 str = string: "hey"
	 tb = table: 027DCBE0  {dummy:1, blah:true, foo:bar}
	 (*temporary) = nil
	 (*temporary) = string: "text"
	 (*temporary) = string: "attempt to concatenate a nil value"
(4) tail call
(5) main chunk of file 'D:\trunk_git\sources\stacktraceplus\test\test.lua' at line 15
(6)  C function 'function: 002CA480'