azure wolf
only just seen this thread, no idea if i even read the rules right tbh
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
setmetatable({}, {
__index = function()
return you_cant_call_me
end
}).__index()("Hello world")
opaque heath
}).this_doesnt_exist(“Hello world”)
is cooler
opaque heath
Goal: Print "Hello world"
Rules:
[+] Your solution must be below EDIT FROM HER...
can’t call any functions though 👀
azure wolf
Someone tell me why this isn't a valid answer:
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
local yccm = you_cant_call_me()
yccm("Hello World")
local yccm = you_cant_call_me() is not a call expression, you_cant_call_me is ONLY called on the final line. there is no other call expression, just evaluations.
worthy shale
Someone tell me why this isn't a valid answer:
```
function you_cant_call_me()
...
You're still calling functions
opaque heath
“you_cant_call_me is ONLY called on the final line” he says
worthy shale
“you_cant_call_me is ONLY called on the final line” he says
...is that you saying his solution is correct?
opaque heath
...is that you saying his solution is correct?
it’s me saying it’s him saying he’s calling a function, where the main rule is that you cannot call a function
azure wolf
@worthy shale @opaque heath how is the function being called.. it is being evaluated, not called. The rules are that no function should be called, and it isnt. If i did:
local yccm = you_cant_call_me
yccm()("Hello World")```
That would be calling you_cant_call_me AND the returned function, which would be invalid.
The rules were written badly, and like I said, you_cant_call_me is not called until the final line.
Wait i think i dun goof
Yall i aint even gonna argue, I was wrong
Not even gonna delete out of embarassment just fuckin shoot me
worthy shale
<@203768064779485184> <@249283911161610241> how is the function being called.. i...
So just to verify you are aware you called functions twice in both those examples?
azure wolf
So just to verify you are aware you called functions twice in both those example...
Yes. my dumbass thought for some reason local yccm = you_cant_call_me() just evaluated and not called for whatever reason
worthy shale
We all have those moments
azure wolf
We all have those moments
nah. i was confident dude. i feel actually ashamed
echo epoch
I know what the answer is
function you_cant_call_me()
return print
end
print("Hello World")
The rules say: "Only allowed call expression is for the print function returned from you_cant_call_me"
The global print function is the same as the print function returned from you_cant_call_me. Same object/identity/memory address.
echo epoch
```lua
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
for...
Isn't for a type of "call expression" since it causes a call to happen? Maybe "call expression" is considered to mean like something that a variable can be assigned to since it expresses a value
opaque heath
```lua
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
for...
oh wow, that's insane
opaque heath
Isn't `for` a type of "call expression" since it causes a call to happen? Maybe ...
in what world is for a call expression
echo epoch
if it causes a call to happen, then its expressing a call (along with the looping behavior of for)
marble harness
Goal: Print "Hello world"
Rules:
[+] Your solution must be below EDIT FROM HERE
[+] Only allowed call expression is for the print function returned from you_cant_call_me
[+] Any other call expression is forbidden. (such as (), {}, [[]], '', "")
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
The guy who gave me this doesn't answer anymore so no one knows the solution.
If you want you can try, I would be interested in the solution
elder smelt
so you literally cant call any functions other than the print inside you_cant_call_me?
marble harness
Yeah lol
elder smelt
wtf lol
winter jungle
aye how do you get the return of you_cant_call_me without calling
marble harness
I don't know if this even has a solution
winter jungle
second rule is a bit awkward it says returned print function from you_cant_call_me but you cant get its return
so i guess we can just access to the print inside of it
wait also we cant use any other function what the fuck
it only accepts call expressions for the print function
that does not have a solution i bet
minor hare
the rules feel badly phrased?
or just badly put together
I can't make sense of it at least
so you're only allowed to call the return of you_cant_call_me which you obviously can't call
and I assume by print that we have to call the function print with hello world
probably uses some weird lua thing to get the return of a function without calling it via convential means
marble harness
I don't have any fucking clue guys
elder smelt
I don't know how you'd do that without calling a debug library function but that breaks the calling rule
minor hare
and that's assuming we're in gmod
elder smelt
no
elder smelt
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
return "Hello world"
/thread
winter jungle
patent tiger
upvalue shit?
patent tiger
oh wtf
patent tiger
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
_G["you_cant_call_me"]()("Hello World")
so not this because it calls
winter jungle
yes
patent tiger
wtf
winter jungle
you can only call the print function that you_cant_call_me has returned
but how do you even get its return
patent tiger
but you can't get the return
winter jungle
yes
winter jungle
you can only call the print function that you_cant_call_me has returned
not any function besides that
patent tiger
damn
winged rune
So there's no solution?
marble harness
I won't archive the thread but I will try to get the solution.
Maybe
winged rune
Does print("Hello world") count?
Technically it's the same function as the method returns
winged rune
If the original code was something like
function you_cant_call_me()
return function(...) print(...) end
end
-- EDIT FROM HERE
Then it would not work
But for now I see it as the only solution
worn jackal
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
for s in you_cant_call_me do
s("Hello world")
break
end
yall dum
@marble harness
marble harness
holy fucking shit
red vortex
__index = cant_call_this
table[1]("hello world")
minor hare
wait yes
minor hare
no it isnt?
red vortex
elder smelt
how are you going to set a metatable if you cant call anything
red vortex
fuck right
red vortex
gdi
elder smelt
gachi already posted solution anyway
red vortex
hrm
minor hare
setmetatable would be a call
minor hare
gachi already posted solution anyway
wait what
elder smelt
minor hare
i knew the solution would be finding some lua thing that would call a callback
ust
just
didnt think of iterators
scenic pollen
hello @marble harness
scenic pollen
no noobmaster told me
coarse lagoon
ayo
marble harness
I was actually inviting to https://discord.gg/7wu7ZsW
red vortex
yoink
marble harness
```lua
function you_cant_call_me()
return print
end
-- EDIT FROM HERE
for...
Someone actually found the way
coarse lagoon
these are old asf
marble harness
Lol
coarse lagoon
we have like 17 challenges
marble harness
If you lua discord you will find the original thread where I got these challenges
scenic pollen
^
marble harness
Is it moonscript related server?
coarse lagoon
nah nah
marble harness
But the amount of people doubt it already
marble harness
11k member for obfuscator???
scenic pollen
luraph better
coarse lagoon
we just friends with the owner
marble harness
Well you were in the screenshots
coarse lagoon
yeah he started doing challenges and then we started making our own
I hope I'm not breaking any promotion rules
cuz not really my intention lmao
it's just the origin
marble harness
No, your luck my bot doesn't work in threads, but I allow this invite
Anyway, thanks for the link
coarse lagoon
aight, you guys can attempt the latest one, it has only been solved by one person
and there is no public solution
scenic pollen
maybe more people will be interested in that actual lua server
minor hare
aight, you guys can attempt the latest one, it has only been solved by one perso...
which one
show it
marble harness
This and lua discord would be interested
coarse lagoon
Challenge #17
Goal: Make 2 == not_two() evaluate to true. (Changing how assert works doesn't matter)
Rules:
[+] The function call not_two() cannot return 2! (obv)
[+] You cannot change or set any metatables.
[+] You cannot use load, loadstring, loadfile, etc.
[+] You cannot edit bytecode or use debug hooks.
-- ^ SOLUTION ABOVE! ^ --
assert(2 == not_two())
Difficulty: (Hard)
brought to you by notnoobmaster
I had no idea these challenges were shared around in other discords lmao
scenic pollen
same lol
marble harness
You can see how it started spreading in https://discord.gg/7wu7ZsW
elder smelt
debug hooks as in debug.set/gethook yeah?
coarse lagoon
yep
marble harness
__eq won't be invoked anyway
coarse lagoon
it's quite tricky indeed
patent tiger
function is_two()
return 2
end
function not_two()
return is_two()
end
-- ^ SOLUTION ABOVE! ^ --
assert(2 == not_two())
marble harness
Some of them have not well explained or controversial rules
coarse lagoon
we try our best ¯_(ツ)_/¯
marble harness
Like with assert(table[3] == 2)
minor hare
just run it in a interpreter that makes the eq pass B)
coarse lagoon
If there's so much interest in these challenges I might finish making that challenge bot that auto checks your solutions
marble harness
❗New Lua challenge!
scenic pollen
Some of them have not well explained or controversial rules
probably my challenges
I'm super specific with rules because I try to make it so only 1 solution is possible
marble harness
**Challenge #17**
**Goal:** Make `2 == not_two()` evaluate to true. (Changing h...
I had an idea not_two to be a coroutine.wrap closure
Where it yields 2 
But that's technically returning 2
minor hare
```lua
function is_two()
return 2
end
function not_two()
return is_two()
end...
nice solution
lmao
warped basin
🙄
minor hare
but
marble harness
can you do return #({1, 1})
warped basin
pretty sure that would also end up returning 2
sleek shard
can we just change 2 to something via debug
marble harness
yeah I guess
sleek shard
im on mobile sorry
coarse lagoon
can we just change 2 to something via debug
actually no
sleek shard
i see
warped basin
shit
local a = {
["2"] = 1,
["print"] = print,
["tostring"] = tostring,
}
setfenv(1, a)
print(2)
didn't work though D:
sleek shard
smh
i expect some hacky stuff inside not_two that forces the assertion to be true
idk
warped basin
function not_two()
return 1
end
local a = {
[2] = 1,
["print"] = print,
["tostring"] = tostring,
["test"] = "racist word here",
}
setfenv(1, a)
print(2)
print(test)
very sad
second print outputs "racist word here"
sleek shard
would it even be possible to replace not_two with 2 inside not_two
or
-- inside not_two
local a = 1
return a, hacky_stuff_that_increments_a_before_assertion
i really dunno lmao
marble harness
https://hastebin.com/uyuyuyusaw.lua
Solution from Lua discord.
Didn't pass the challenge
marble harness
It does
wintry otter
function not_two()
debug.setlocal(2, 2, "a")
return "a"
end
-- ^ SOLUTION ABOVE! ^ --
assert(2 == not_two())
``` this makes them the same but evaluates to false why would it not pass then
sleek shard
author said to not edit the 2 in the assertion
warped basin
```lua
function not_two()
debug.setlocal(2, 2, "a")
return "a"
end
-- ...
it said no debug hacking
that's why I was trying to do setfenv
cuz it's little cheat he didn't specify 😳
sleek shard
no debug hooks actually
marble harness
warped basin
actually no
.
wintry otter
doesnt work either way
sleek shard
what is 2 - 1e-323
warped basin
1e-323 is basically zero
marble harness
sleek shard
oh
scenic pollen
@coarse lagoon u wanna give them a hint or nah
warped basin
I think the best way to qualify it is like if in the bytecode it returns 2
marble harness
warped basin
and if you think about it bytecode is probably some shit like
SUB num, very small num
which evaluates to 2 in lua
and then it returns
so it technically returns 2
coarse lagoon
<@254658795878219778> u wanna give them a hint or nah
hell naw
marble harness
Too early
warped basin
if that nameless guy is right then it counts
scenic pollen
yeah someone who knows how bytecode works lmao
warped basin
If it's because of the == operator
coarse lagoon
well true that
sleek shard
would it even be possible to replace not_two with 2 inside not_two
is this possible lol
warped basin
it didn't return 2
coarse lagoon
but they can all learn it
marble harness
Guys I think you should post these challenges (you made) in lua mailing list.
Or if you give permission, I can
warped basin
If the Nameless guy is right it should count
scenic pollen
Guys I think you should post these challenges (you made) in lua mailing list.
Or...
what's the mailing list for again
coarse lagoon
boomers
scenic pollen
heard of it but never used it
coarse lagoon
looooooooooool
scenic pollen
I thought it was for like bug reports n stuff
minor hare
its for everything pretty much
sleek shard
yeah
scenic pollen
too smart for discord
marble harness
what's the mailing list for again
It's the official Lua Mailing List. It's the main place for lua. Around 2k members. Bugs, questions, talk, library announcements.
Roberto (lua author) runs it since 1997
marble harness
Lua
coarse lagoon
plain lua
warped basin
gay
marble harness
And I already saw challenges there
warped basin
5.3?
coarse lagoon
@scenic pollen they're for sure gonna instantly know the answer to your pcall challenge lmao
scenic pollen
you can do it on 5.3
warped basin
alright swag
scenic pollen
@coarse lagoon what pcall challenge
coarse lagoon
the bug one
scenic pollen
u mean the Lua bug
coarse lagoon
yeah
marble harness
I was thinking about pcall for this challenge
scenic pollen
who uses 4.0
marble harness
Almost everything doesn't work in 4.0 lmao
scenic pollen
do people still use below 5.1
marble harness
Even 5.0 is shit
scenic pollen
5.1 and 5.3 are the main ones i see used
marble harness
Real talk
marble harness
I would say there is not only the syntax reason
warped basin
even 5.3 would be dope for gmod
_ENV bitwise operators and other miscellaneous drip
😋
marble harness
LuaJIT 2.0.4
sleek shard
luajit
scenic pollen
bitwise ops semi not meh
marble harness
What's good then
warped basin
maybe serverside
warped basin
Luau is pretty cool
scenic pollen
types
warped basin
I've read that
marble harness
We have continue too!
scenic pollen
wait fr?
marble harness
Yes
sleek shard
it was buggy at some point
marble harness
Check this page
sleek shard
but fixed
warped basin
I just don't like it cuz they're really confident 🙄
scenic pollen
does it pass the variable scoping bug test
marble harness
It didn't before
warped basin
https://luau-lang.org/sandbox like this whole thing is so lame
scenic pollen
repeat
do continue end
local a = 1
until a
yeah also C style operators but those are lame and no one uses them
cuz they don't work with any obfuscators or minifiers
🙄
sleek shard
except gmod xd
warped basin
no I mean no one writing shit for gmod uses them
sleek shard
they're shitty agreed
warped basin
cuz they don't work with any obfuscators or minifiers
.
scenic pollen
cuz they don't work with any obfuscators or minifiers
luraph supports them
warped basin
yeah but luraph is supposed to be shit
marble harness
```
repeat
do continue end
local a = 1
until a
```
Iirc that doesn't work.
How does it work in C then?
C has do while
marble harness
Ah well it doesn't allow to use locals from the loop
minor hare
I know PSU has deobfuscators but they aren't public so it's good enough for me
ok
im deobfuscating.
scenic pollen
Ah well it doesn't allow to use locals from the loop
oh Lua does
warped basin
yawning_mouth
warped basin
The point of obfuscators are to stop retards.
scenic pollen
I know PSU has deobfuscators but they aren't public so it's good enough for me
u know their source code got leaked lmao
marble harness
Luau code?
warped basin
They ping me so often I ignore them.
scenic pollen
check psu discord
marble harness
Isn't luau slow af?
warped basin
@everyone The PSU development team has recently been alerted to the fact that not only was there a obfuscator source leak but there was also a gitlabs breach on 6/20 which allowed unauthorized users to obtain copies of the old source for the obfuscator and a very primitive version of the rebirth source. It is unknown at the moment whether the current gitlabs is still breached or these people still have access but out of precautions the rewrite for psu will be moved to a private repository only accessible to two people. We are still looking into this issue. I find it very unfortunate this happened but however I am nonetheless surprised. Development will continue as normal in light of this.
marble harness
Proof?
scenic pollen
not as fast a luajit tho
scenic pollen
fun fact I made original psu
warped basin
🙄 🙄
scenic pollen
then I left
marble harness
it's faster than 5.4 by a lot
Proof?
warped basin
but the devs seem pretty smart
scenic pollen
@marble harness on phone rn
scenic pollen
but the devs seem pretty smart
meh
marble harness
Would be interested
marble harness
Never tried roblox actually
scenic pollen
but it's vm is basically what 5.4 does plus more
and they do some things luajit does
but just not jit itself
warped basin
roblox would be so cool
coarse lagoon
they put a lot of R&D into that
warped basin
if the game wasn't so bad
marble harness
So they basically patched it to 5.4 level but it's still 5.1 ABI?
warped basin
Like luau looks dope
but nobody wants to play roblox
or even say they develop for it
scenic pollen
So they basically patched it to 5.4 level but it's still 5.1 ABI?
yeah plus extensions
warped basin
🙄
coarse lagoon
you could use teal if you want types
warped basin
https://luau-lang.org/ @marble harness
marble harness
I'm familiar what are the features
coarse lagoon
it's like ts
warped basin
u asked for proof of perf
warped basin
They have like 3000 words on the performance section
marble harness
scenic pollen
minor hare
I know PSU has deobfuscators but they aren't public so it's good enough for me
isnt it literally just
identical
to lua bytecode
iirc it is
warped basin
That would be pretty retarded.
if that's true then it is not good enough for me
nvm
Luau is safe to embed. Broadly speaking, this means that even in the face of untrusted (and in Roblox case, actively malicious) code, the language and the standard library don’t allow any unsafe access to the underlying system, and don’t have any bugs that allow escaping out of the sandbox (e.g. to gain native code execution through ROP gadgets et al).
0 bugs 🥳
warped basin
They solved bugs.
vital vault
bugs are no more 🦀
minor hare
people stopped implementing bugs!!!!
sleek shard
too badd
warped basin
Of course a rust emoji
minor hare
cant wait to sbox escape into rce
warped basin
It was just a matter of time before the transgender invasion.
marble harness
What is weird in their decision is to remove __gc
sleek shard
luau?
warped basin
__gc exploitable
marble harness
Yeah as they said
sleek shard
idk how is it exploitable
warped basin
aside from a limited version of debug getinfo
wintry otter
wtf
warped basin
yeah roblox moment
sleek shard
remove the entire language, exploitable
warped basin
@coarse lagoon okay give a hint 🥱
scenic pollen
if that's true then it is not good enough for me
it is
minor hare
it is
yea lmao
that one guy
i dont recall his name
he made a public script dumper
coarse lagoon
<@!254658795878219778> okay give a hint 🥱
we usually release the solution after 24h
scenic pollen
me under and alt
minor hare
was that u lmao
coarse lagoon
okay, imagine how hard it is to come up with a challenge. Now imagine how much harder it would be to think of an hint that doesn't give the solution away
sleek shard
true
scenic pollen
yes
coarse lagoon
I do not want to invest time into dealing with the challenge after I make it
coarse lagoon
read the lua source from top to bottom
wintry otter
a single letter of the solution
warped basin
lets go
wintry otter
that's a hint technically
scenic pollen
was that u lmao
yes
warped basin
yeah hand it over
sleek shard
big brain
scenic pollen
but I took it down because the owner raged in my dms
scenic pollen
yes
minor hare
lmao
scenic pollen
LD
minor hare
dude
wintry otter
luraph support soon...
minor hare
yea
coarse lagoon
luraph support soon...
mfw this man made luraph
wintry otter
warped basin
says the luraph developers 🚎
coarse lagoon
im not a developer for luraph
wintry otter
just obfuscate with 3 different obfuscators then convert it to luajit bytecode and load it
ez
jagged verge
> @everyone The PSU development team has recently been alerted to the fact that ...
hmu
coarse lagoon
luraph only winning cuz there is no other obfuscators lmao
sleek shard
just write a luajit bytecode loader in lua
coarse lagoon
ib2 is just a lua vm written in lua
minor hare
LD
i was so fuckn confused on how u acted
i remember
u said some shit
about not wanting to just
coarse lagoon
which uses a bit of a different bytecode structure
minor hare
dump to files / deobfuscate bytecode directly
scenic pollen
I dumped to a luac file which u could decompile @minor hare
minor hare
you would just release like a table of instructions
scenic pollen
I didn't decompile because unluac can use like
minor hare
i remember u didnt at first
scenic pollen
60gb of memory
marble harness
Anyway, would be cool to see how mailing list (lua-l) will solve them
coarse lagoon
I didn't decompile because unluac can use like
wait till I finish my decompiler
warped basin
do the obfuscators actually like always use the same bytecode ?
minor hare
no
scenic pollen
not luraph ✅
warped basin
very lame
minor hare
i made a ternary vm for it
scenic pollen
ib2 is so insecure
jagged verge
do not put trolls in bytecode,,,
coarse lagoon
there are only 2 obfuscators, ib2 with hella forks and luraph
scenic pollen
defcon the creator said not to fork it
warped basin
do not backdoor a server with LSAC
scenic pollen
and to let it die
marble harness
What is luarph
warped basin
there are only 2 obfuscators, ib2 with hella forks and luraph
didn't that guy just say luraph was based on ib2 🙄
coarse lagoon
no
sleek shard
but most do
they're ancient i guess
scenic pollen
What is luarph
obfuscator
minor hare
ah yeah ib2 is surprisingly bad
marble harness
No results in GitHub
minor hare
it remained pretty on top for a bit
coarse lagoon
its fione with precompiled bytecode
scenic pollen
No results in GitHub
because it isn't open source
minor hare
luraph had public deobfuscator 😔
coarse lagoon
ages ago
scenic pollen
yeah v11 was garbo
warped basin
hmm
minor hare
is it really that long ago?
scenic pollen
not made by me
coarse lagoon
i can tell you there is no chance anyone (except me cuz im too large brained) is deobfuscating luraph
warped basin
can I have a link to the luraph discord
coarse lagoon
wasnt that shit in 2019
scenic pollen
can I have a link to the luraph discord
/luraph
marble harness
minor hare
was 2020 of last year
i just remember it got taken down so fast
coarse lagoon
you don't need /invite
minor hare
iirc it was so big too
warped basin
marble harness
Discord advises their new domain
scenic pollen
i just remember it got taken down so fast
yeah because memcorrupt (luraph owner) dmcad all of them
coarse lagoon
if I could buy luraph stock I would
warped basin
luraph troller
jagged verge
i can tell you there is no chance anyone (except me cuz im too large brained) is...
nice ego retard
marble harness
tfw lua obfuscator has more members than lua discord
scenic pollen
probably 2016 @minor hare
minor hare
i can tell you there is no chance anyone (except me cuz im too large brained) is...
you sure.
coarse lagoon
lmao
warped basin
this does look pretty good
You could do some extra trolling with the LPH_CRASH shit
coarse lagoon
idk why yall even want to obfuscate
warped basin
i dont
jagged verge
e-dick measuring contest
warped basin
I don't have anything to obfuscate
minor hare
idk why yall even want to obfuscate
dude all the obfuscators are so boring
no unique vms
jagged verge
PLEASE you CANT take my star wars rp exploit menu
jagged verge
PLEEASEEE
wintry otter
I don't have anything to obfuscate
yes u do
warped basin
yeah like what 🙄 🙄
coarse lagoon
dude all the obfuscators are so boring
try luraph
jagged verge
my nuts in your face @warped basin
warped basin
no!
warped basin
tf is a ternary vm
minor hare
base 3
warped basin
I googled it and didn't find anything after u said that
wintry otter
try luraph
can we use debug library feature if some of the debug functions are removed
or does that option use all of them
minor hare
I googled it and didn't find anything after u said that
look at
jagged verge
just reimplement the rest
coarse lagoon
can we use debug library feature if some of the debug functions are removed
no idea
coarse lagoon
@scenic pollen is the expert all things luraph
wintry otter
can we use debug library feature if some of the debug functions are removed
@scenic pollen
minor hare
also balanced ternary floats are cool stuffz
warped basin
oh luraph isn't free
warped basin
god damn who is paying $60 a month for an obfuscator
they have lots of options though
elder smelt
just use a binary module x
warped basin
idk I think it would be hard to do good protection with binary module
I mean you could obviously do some trolls but it would be a lot of work to make it really good.
elder smelt
go try and crack xeon ill wait
warped basin
loading bytecode isn't really much protection
wintry otter
did xeon update or something
warped basin
yeah he uses a rust module for it now
wintry otter
nice
warped basin
okay
marble harness
@coarse lagoon can you use setlocal in the challenge?
elder smelt
what sid64
warped basin
76561198124454705
coarse lagoon
<@254658795878219778> can you use setlocal in the challenge?
sure
not against the rules
warped basin
I don't care about project winter 🙄
sleek shard
hmmm
scenic pollen
mfw you can sethook on return but you can't access the values
debug
scenic pollen
god damn who is paying $60 a month for an obfuscator
probably not u
thats for people who want to "resell" luraph as part of their product
patent tiger
not_two technically returns 2 there
durr
marble harness
So will you post it on lua-l or I can have permission to do so?
warped basin
😈
elder smelt
free bkeypads lets go
sid64
coarse lagoon
So will you post it on lua-l or I can have permission to do so?
even if you do, who's gonna check their solutions
or give feedback
coarse lagoon
and idk how I want to be credited yet
warped basin
xeon-drm-dll.lua
jagged verge
wait why do you need my sid64 again
marble harness
At least I can try /shrug
warped basin
local function JohnLua()
local quotes = {"In the beginning was the Statement, and the Statement was with Lua, and the Statement was Lua.","Greater love has no one than Lua, that the compiler lay down his life for our code.","Do not think that I will debug with the Stack Trace; For had ye believed the Compiler Errors, ye would have believed Me, for he wrote of Lua; But if ye believe not his Stack Traces, how shall ye believe My code?","Even though my types remain weak, I fear no error, for Lua is with me.","Lua is the chain that ties our health and bodies together.","Rip scripts, you must not. Let the Lua flow straight from your fingers.","Variables are changed by your example, not by your opinion.","The meaning of Lua is to give Lua a meaning.","Doubt has killed more scripts than errors will.","The hottest places in Hell are for those who never declare local variables.","Crashes and overflows may break my bones; But pcalls will never harm me.","Wise men code because they have something to make; Fools because they want to make something.","Lua is the joy of the good, the wonder of the wise, the amazement of the Gods.","You dump functions. You dump memory regions and crash reports that look like hell. You dump unused variables and collected garbage and tables. But people?","Whoever believes in the Trace is not condemned, but whoever does not believe stands condemned already because they have not believed in the name of John Lua's one and only Function.","It is written: \"Lua shall not live on interpreter alone, but on every instruction that comes from the mouth of Mike Pall.\"","Because of Mike Pall's great love we are not consumed, for his Traces never fail. They are new every loop; great is your Just-In-Time compilation.","I give them eternal life, and they shall never perish; no one will collect them out of my heap. My Allocator, who has given them to me, is greater than all; no one can Mar```
k-and-Sweep them out of my Garbage-Collectors hand. I and the Collector are one."}
return "\"" .. quotes[math.random(1, #quotes)] .. "\" - John Lua\n"
end
isn't it server-bound instead of user-bound
jagged verge
loicense check
warped basin
loicense
scenic pollen
@marble harness idk about noobmaster or federals challenges but you can use mine 👍
noobmaster probably ok with it
jagged verge
i don't think i got any spare alts with gmod
elder smelt
wait why do you need my sid64 again
to assign u the script
jagged verge
gmfd
warped basin
if system.IsOSX() then
print()
for i = 1, 10 do
MsgC(Color(255,0,0), "XEON DRM is not compatible with your operating system. You are unable to use Billy's scripts on this computer.\n")
end
print()
hook.Run("XEON.Error", "XEON DRM is not compatible with your operating system. You are unable to use Billy's scripts on this computer.")
return
end
@elder smelt good job
we hate the mac users
patent tiger
lemme get a copy bill-dog
jagged verge
stfu skid u couldn't crack a 3 dig padlock
patent tiger
D:*
marble harness
<@301695263251103744> idk about noobmaster or federals challenges but you can us...
where are all your challenges?
scenic pollen
where are all your challenges?
in that moonsec server
marble harness
ah
scenic pollen
all of the challenges are there
wintry otter
unless its stated that debug is banned
no that was a luraph question not about the challenge
coarse lagoon
idk, I just don't want some middle manning
wintry otter
setupvalue, setlocal, and the two upvalueid functions are gone in gmod
coarse lagoon
I'm fine if you post the challenges with the solution
but posting the without seems kinda eeeh
and then people only get one chance to solve
plus how would they know to reach out to us
scenic pollen
@wintry otter oh
uhhh I don't think we use those
should be fine
yeah should be ok
coarse lagoon
plus how would they know to reach out to us
@marble harness I'm not holding back allowing you to post them out of malice, I just don't think it's a good idea to rush this.
warped basin
u guys have continue support, yes?
elder smelt
no
coarse lagoon
<@!301695263251103744> I'm not holding back allowing you to post them out of mal...
eventually I would definitely want all the challenges there
scenic pollen
make it use jit functions <:tr:837413764495704074>
maybe
warped basin
eww rust was just on my computer
elder smelt
:( boilerplate
marble harness
I could always just add a Gmod target version
we don't have setlocal, and other debug functions btw
warped basin
yogpod said that
wintry otter
setupvalue, setlocal, and the two upvalueid functions are gone in gmod
i said that here
scenic pollen
we don't have setlocal, and other debug functions btw
we don't use any of the removed ones so it's good
elder smelt
@warped basin cracked it yet x
warped basin
I've had a rust file open for like 20 minutes so far
starting to become transgender
coarse lagoon
@marble harness okay, you can post all challenges with solutions that are mine if you add a link to my GitHub
But it must be a challenge solution combo
Cuz I don't want people in 5 years finding them and not knowing the solution
uncut kayak
i didnt know roblox lua is typed
marble harness
you said you will eventually post them
uncut kayak
o
warped basin
it's also not checked at runtime like typescript
coarse lagoon
you said you will eventually post them
Challenge 17 solution is gonna be up tomorrow
scenic pollen
it's just for like ide improvements
uncut kayak
still pretty cool but
roblox
warped basin
yeah roblox is the issue
marble harness
let's fucking go
scenic pollen
luau is the coolest thing roblox has done
warped basin
fax
coarse lagoon
Many people hate the typed aspect doe
scenic pollen
no
coarse lagoon
Yes
marble harness
Does challenge 17 work in any 5.*?
coarse lagoon
Hopefully
scenic pollen
yes ^^
marble harness
was it tested?
coarse lagoon
No
marble harness
alright, I was ready to see bugs related to 5.1
scenic pollen
it's not a bug
coarse lagoon
Yep
coarse lagoon
@scenic pollen would you also want your github associated?
scenic pollen
sure
marble harness
lol
warped basin
yeah I am.
coarse lagoon
PERHAPS
marble harness
uuh
i found the way
but it's not really 2 == not_two() makes true
buuuut
assertion passes :DDD
scenic pollen
whats the solution
warped basin
^
marble harness
let me test on replit
warped basin
yeah I need a second to prepare to cope
marble harness
debug.setmetatable(nil, {__call = error})
-- ^ SOLUTION ABOVE! ^ --
assert(2 == not_two())
it doesn't pass in theory..
it just
warped basin
i think it said no metatables
marble harness
doesn't output anything
scenic pollen
violates a rule
warped basin
[+] You cannot change or set any metatables.
marble harness
fuck lol
warped basin
yea
warped basin
no it's cheating 🙄
marble harness
what's more interesting it doesn't error
scenic pollen
yeah weird thing about error
i forget if this is just 5.1
but if u pass nothing to it
marble harness
ah yeah
scenic pollen
it doesn't output to stderr
marble harness
i remember something
marble harness
as Artemking stated. == in 5.1 strongly returns true only when type1 == type2 and tvalue1 == tvalue2
scenic pollen
so make them equal
marble harness
that means not_two() expression must evaluate to TValue with type LUA_TNUMBER and must pass a==b in C
but that's against the rules
scenic pollen
so change the other side
marble harness
2 is a constant not local
scenic pollen
change it
coarse lagoon
please give me feedback on the format
warped basin
swag
marble harness
damn that's tough. There is nothing that writes into p->k So it's impossible to write new constant into the list.
The bytecode has this constant optimized, it's put directly into opcode (-3 refers to constants)
EQ 1 -3 1
coarse lagoon
skill
warped basin
metatable shit would still require call
Idk how you’re solving that one as easy that’s way more impossible then the two spar has said earlier
coarse lagoon
I'll just spoil this one, you just do for _ in func, arg1, arg2 do end
you guys already solved a variant of the same challenge
i just removed the you cant call me function
cuz kinda pointless
marble harness
I'm waiting for the solution for 2 == not_two.
I did enough research with my possibilities
marble harness
whatever since you will post it in 24 hours
but I am interested to enlarge my knowledge
unless it's again something I didn't missed it right in front let'sgoo
Ok the level of difficulty of this challenge is legit high
warped basin
If you don't spoil it to anyone else I can tell you
Can u send me it too 😳
scenic pollen
Can u send me it too 😳
it will be posted in that discord we sent
scenic pollen
ok
marble harness
**Challenge #17**
**Goal:** Make `2 == not_two()` evaluate to true. (Changing h...
@worn jackal what are your thoughts?
worn jackal
did someone try epsilon?
worn jackal
function not_2()
return 2 - 1e-301
end
assert(2 == not_2())
???
this is the "incorrect" solution?
worn jackal
works though :T
marble harness
not_two must not return 2
worn jackal
fair
what counts as returning 2
is 2ULL returning 2?
their metatables aren't equal yet 2 == 2ULL
can you consider 2 to be equal to 2ULL then
marble harness
marble harness
their metatables aren't equal yet 2 == 2ULL
This is pure Lua 5.0-5.4 solution
marble harness
You name it
worn jackal
registry is cheating
jagged verge
Checking
scenic pollen
ik i was just wondering
jagged verge
rq
scenic pollen
i don't
worn jackal
not much
scenic pollen
i barely ever use luajit at all
marble harness
0572?
jagged verge
i wouldn't say i have lots o knowledge w luajit
marble harness
What about puc lua?
marble harness
@jagged verge @worn jackal @warped basin ready?
@everyone
_ = {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255,256}
-- This table just adds junk constants
function not_two()
debug.setlocal(2,2, nil) -- This works because bitrk cannot hold a value larger than 256 so lua loads the constant via LOADK and then gets the constant from the stack.
end
-- ^ SOLUTION ABOVE! ^ --
assert(2 == not_two())
bruuuh
uncut kayak
imdeadbru
worn jackal
is every challenge going to be related to lua internals?
jagged verge
albeit it feels weird to have challs in gmod server that are literally impossible in gLua
coarse lagoon
albeit it feels weird to have challs in gmod server that are literally impossibl...
they aren't made for glua doe
yall just somehow found them
marble harness
That's why I was asking if you guys know lua more than luajit
I might solve this if I read lua bytecode more than luajit
FOr example this hack won't be possible in luajit
maybe if the number gets bigger than 32k
but it's not affected by the number of constants
while lua stored constants in separate place while it could just use 2 literally
luajit does this
sleek shard
luajit ftw
coarse lagoon
luajit does this
even for strings?
marble harness
even for strings?
Strings are stored in KGC array
sleek shard
what does KGC mean curious
marble harness
KGC are:
protos, string, table template (luajit saves a copy of trivially contructible table and duplicates it when bytecode for table is called), FFI LL and ULL numbers
k means constant
GC means Garbage Collectible
worn jackal
arent they stored in the DES ht?
sleek shard
nice
marble harness
that proto/function uses
but yeah if constant string is compared with something luajit calls different bytecode and you can't just spam with more constants
@coarse lagoon
you will likely just get error like too much constants, didn't test
coarse lagoon
I have never used luajit ¯_(ツ)_/¯
wintry otter
you will likely just get error like too much constants, didn't test
do --- int
local t = { "local x\n" }
for i=2,65537 do t[i] = "x='"..i.."'\n" end
assert(CompileString(table.concat(t)) ~= nil)
t[65538] = "x='65538'"
assert(CompileString(table.concat(t)) == nil)
end
CompileString:65538: main function has more than 65536 constants
marble harness
yeah
jagged verge
trolling
coarse lagoon
so few?
marble harness
per function
coarse lagoon
Bx is 18 bits wide
marble harness
did they use both ABC?
coarse lagoon
bx is like bc combined
worn jackal
how about a glua challenge
marble harness
where did it get 2 more
coarse lagoon
b and c are 9 bits
coarse lagoon
in luajit it's 8, 8, 8, 8
prob also faster to read