Hi!
Just an interesting observation:
multiple assignment in Lua is more costly than
equivalent single assignments:
$ luac -l -p -
local a,b,c,d
a, b = c, d
main <stdin:0,0> (5 instructions at 0x1acc780)
0+ params, 5 slots, 1 upvalue, 4 locals, 0 constants, 0 functions
1 [1] LOADNIL 0 3
2 [2] MOVE 4 2
3 [2] MOVE 1 3
4 [2] MOVE 0 4
5 [2] RETURN 0 1
$ luac -l -p -
local a,b,c,d
a = c
b = d
main <stdin:0,0> (4 instructions at 0x231e780)
0+ params, 4 slots, 1 upvalue, 4 locals, 0 constants, 0 functions
1 [1] LOADNIL 0 3
2 [2] MOVE 0 2
3 [3] MOVE 1 3
4 [3] RETURN 0 1
