Error handling no function

print("hello world")

local function main()
  print("hello world")
end
local ok, err = pcall(main)
if not ok then
  --# handle error
  print("error: "..err) --# print out the error
end

Lupus590, on 17 June 2017 - 02:51 PM said:

You have something like this:

print("hello world")

What KingofGamesYami is suggesting is something like this:

local function main()
  print("hello world")
end
local ok, err = pcall(main)
if not ok then
  --# handle error
  print("error: "..err) --# print out the error
end

literally_any_code
--# is the same as
(function() literally_any_code end)()

Exerro, on 18 June 2017 - 01:49 PM said:

`pcall` and `xpcall` are the only native ways of catching errors. They both accept functions as arguments. If you want to catch an error, you need the code to be inside a function to pass it to either. All Lua code can be placed inside a function and called without any differences:

literally_any_code
--# is the same as
(function() literally_any_code end)()

with the slight exception of stack-related stuff being a little different, but inside CC, that's almost never a problem.

If your code isn't working when put in a function, something else is going wrong, and you should address that issue. We can't help with an ambiguous error message and no source code, however. (i.e. give the source code and you'll get help!)

My best shot without source is that there's a chance you called your main function something that essentially overrides another function, so instead of calling that other function, it's calling itself, resulting in a stack overflow.

Bomb Bloke, on 18 June 2017 - 10:48 AM said:

We cannot suggest alterations to that which we cannot see.