test.lua

local function foo()
  return foo()
end

local bar; bar = function()
  return bar()
end

main <D:\Desktop\test.lua:0,0> (5 instructions at 0000000000898070)
0+ params, 3 slots, 1 upvalue, 2 locals, 0 constants, 2 functions
	1	[5]	CLOSURE  	0 0	; 00000000008982B0
	2	[7]	LOADNIL  	1 0
	3	[9]	CLOSURE  	2 1	; 0000000000898510
	4	[9]	MOVE     	1 2
	5	[9]	RETURN   	0 1

function <D:\Desktop\test.lua:3,5> (4 instructions at 00000000008982B0)
0 params, 2 slots, 1 upvalue, 0 locals, 0 constants, 0 functions
	1	[4]	GETUPVAL 	0 0	; foo
	2	[4]	TAILCALL 	0 1 0
	3	[4]	RETURN   	0 0
	4	[5]	RETURN   	0 1

function <D:\Desktop\test.lua:7,9> (4 instructions at 0000000000898510)
0 params, 2 slots, 1 upvalue, 0 locals, 0 constants, 0 functions
	1	[8]	GETUPVAL 	0 0	; bar
	2	[8]	TAILCALL 	0 1 0
	3	[8]	RETURN   	0 0
	4	[9]	RETURN   	0 1