I broke my output.

[warspyking]

I spammed it like a boss. Now all programs/console/ everything are spammed a tostring'd table.

How To Fix:

Exit app
Double click home button
Hold down on Touch Lua
Remove it
Reopen app

--NOTE: You will have to perform the above instructions EACH time you run one of the codes on this thread.



I'm fully aware that it's my own fault for making such h4xxy code, but it's still an issue.

[warspyking]


function GC(self)
  print(self)
  sleep(500) --No matter what you set this as, it WILL eventually catch up O_O
  return GC(self)
end

setmetatable({},{__gc = GC})


[warspyking]

Note: This will also lag your app extremely in programs, editing programs, and out of programs.

Good luck running anything with removing TL from your memory of recent apps first.

[warspyking]

You can even just print nothing and it can break your output for all programs:

function GC(self)
  print("")
  return GC(self)
end
setmetatable({},{__gc=GC})

[leon26leon26]

Do you expect everybody to try it? xD

[warspyking]

Nov 19, 2015 12:41:01 GMT leon26leon26 said:

Do you expect everybody to try it? xD

Well it's easily reversible. Simply get out of the app, double click the home button, and remove Touch Lua from memory.

[warspyking]

Here's another one, that switches you to the graphics screen and doesn't let you out:


function GC(self)
  print(self)
  return GC(self)
end

draw.setscreen(1)
setmetatable({},{__gc = GC})


[warspyking]

My bet, is if I had the audio library, I could spam audio and make a racket.

[warspyking]

Here's one with sys.alert:


function GC(self)
  print(self)
  sys.alert("tink")
  sys.alert("tock")
  sys.alert("dtfm0")
  sys.alert("neg")
  sys.alert("drop")
  return GC(self)
end

setmetatable({},{__gc = GC})



You can leave the program. But that won't end your ear's suffering

[warspyking]

Here's a version that (assuming you don't have the turtle library) will spam you saying you do need it, easy to use different libraries instead:


function GC(self)
  sleep(math.random(5,10)*1000)pcall(function()turtle.penwidth()end)
  return GC(self)
end

setmetatable({},{__gc = GC})


[warspyking]

A covert piece of code that you'd never guess stopped ALL your programs from running:

function GC(self)
  sleep(math.huge)
  return GC(self)
end

setmetatable({},{__gc = GC})

[warspyking]

This piece of code will exit the app seemingly-randomly after the code ends. Even if they end the program:


function GC(self, n)
  n = n or 1
  if n == 10000000 then
     os.exit()
  end
  return GC(self, n+1)
end

setmetatable({},{__gc = GC})


[warspyking]

Heck, you could even use this little trick to run your own code after your program ends!


function GC(self)
  local x = io.read()
  pcall(load(x))
  return GC(self)
end

local t = setmetatable({},{__gc = GC})

local input
print("Say break to end the program")
repeat
  input = io.read() == "break"
until input
t = nil



In the end, the lesson is, don't tail call inside a __gc metamethod, as once it's garbage collected, code will continue running EVEN AFTER your program ends.


The issue would be that once it ends, it ends, this should NOT happen.

[Admin]

Nov 19, 2015 18:44:02 GMT warspyking said:

Heck, you could even use this little trick to run your own code after your program ends!


function GC(self)
  local x = io.read()
  pcall(load(x))
  return GC(self)
end

local t = setmetatable({},{__gc = GC})

local input
print("Say break to end the program")
repeat
  input = io.read() == "break"
until input
t = nil



In the end, the lesson is, don't tail call inside a __gc metamethod, as once it's garbage collected, code will continue running EVEN AFTER your program ends.


The issue would be that once it ends, it ends, this should NOT happen.

I checked it, Lua program failes to end preventing any other program to run. No matter how I try to end the program gracefully, it just fails!
I guess it is Lua issue...

What I can do is make lua error that will stop lua in certain functions, like print and sleep. This will terminate active programm.

[warspyking]

Apr 5, 2016 11:54:52 GMT Admin said:

Nov 19, 2015 18:44:02 GMT warspyking said:

Heck, you could even use this little trick to run your own code after your program ends!


function GC(self)
  local x = io.read()
  pcall(load(x))
  return GC(self)
end

local t = setmetatable({},{__gc = GC})

local input
print("Say break to end the program")
repeat
  input = io.read() == "break"
until input
t = nil



In the end, the lesson is, don't tail call inside a __gc metamethod, as once it's garbage collected, code will continue running EVEN AFTER your program ends.


The issue would be that once it ends, it ends, this should NOT happen.

I checked it, Lua program failes to end preventing any other program to run. No matter how I try to end the program gracefully, it just fails!
I guess it is Lua issue...

What I can do is make lua error that will stop lua in certain functions, like print and sleep. This will terminate active programm.

So you *can't* fix this problem? Good thing __gc is rarely used anyway xD