This module crashes the type checking engine

[5uphi]

1. Open Studio

2. Open new Baseplate project

3. Create a ModuleScript inside ServerStorage

4. Copy this code into the ModuleScript

local CloseTask, DestroyTask, Unlock, Save

export type Constructor = {
	new: (name: string, scope: string, key: string?) -> DataStore,
	hidden: (name: string, scope: string, key: string?) -> DataStore,
	find: (name: string, scope: string, key: string?) -> DataStore?,
	Response: {Success: string, Saved: string, Locked: string, State: string, Error: string},
}

LockTask = function(runningTask, proxy)
	local dataStore = getmetatable(proxy)
	if dataStore.TaskManager:FindLast(CloseTask) == nil and dataStore.TaskManager:FindLast(DestroyTask) == nil then StartLockTimer(proxy) end
	if dataStore.__public.SaveOnClose == true then Save(proxy, 3) end
	dataStore.__public.StateChanged:Fire(false, proxy)
end

CloseTask = function(runningTask, proxy)
	local dataStore = getmetatable(proxy)
	if dataStore.__public.SaveOnClose == true then response, responseData = Save(proxy, 3) end
	Unlock(dataStore, 3)
end

DestroyTask = function(runningTask, proxy)
	local dataStore = getmetatable(proxy)
	if dataStore.__public.State == false then
		if dataStore.__public.SaveOnClose == true then response, responseData = Save(proxy, 3) end
		Unlock(dataStore, 3)
	end
	dataStore.__public.StateChanged:Fire(nil, proxy)
end

return Constructor :: Constructor

5. Wait a few seconds

6. Change the 3 on line 26 to 4
   

   

7. Congratulations you have just crashed the type checking engine

8. to test if the type checking engine has crashed create a new script and type game you should notice that auto complete no longer work you must restart studio now to fix it

this problem was previously reported here: This module breaks type checking and crashes studio · Issue #1102 · luau-lang/luau · GitHub
it was fixed for a short time but then stopped working again

you can find the full module here: https://create.roblox.com/store/asset/11671168253
but iv narrowed the problem down to the code shown above

[DroidDestroyer00 (ZodiacSignsDontExist)]

finally. how roblox studio was meant to be used

[swmaniac]

Thank you for the bug report. We’ve identified the issue and are preparing a fix. We’ll reach out if we need any more information.

[5uphi]

I’m not sure if anything has changed with studio but iv now gotten two reports in the last 24hrs that my module is crashing studio

it might be a mac only problem because for me only type checking is crashing or maybe you have only pushed the update to some users and I still don’t have this update

Suphi's DataStore Module

Hi Suphi, I am having this problem where (just out of the blue after updating), where whenever I open my Data Script and your Data Module, my studio crashes. It doesn’t crash with any other datastores. I double checked, no circular dependencies, no unlimited loops without any exits - which shouldn’t matter anyways because I am still in edit, not play test. Any idea whats going on?

Suphies dataStore strange problem

Hello, so I have encountered a problem in my studio, when I open it nothing really happens but when I try to open the dataStore module the entire studio crashes (the dataStore is suphies dataStore). I have no clue why this is happening, anyone got any ideas? When I open the module the text of the module becomes white too before crashing.

[ZakiAndrea (Zaki)]

This problem is still happening after 2 days, when are you going to push a fix?

[PresidentVenom (prez)]

Hi

I am also on mac using the datastore module and I have been experiencing crashes since what I believe to be on a Studio update on 29/06/2024, I am using a M1 Mac 2020 13-inch 16GB RAM, and crash when I try and open a script which is requiring the data store module. I have tried reinstalling roblox and I have the datastore stored in my ServerStorage.

Deleting my ~/Library folders all related to roblox and roblox studio did not fix it either.

UPDATE

I deleted the module script from my ServerStorage and it is no longer crashing upon opening the script(s). While it works now it is less than ideal as I have centred my game around this data store module

[alpharetzy2 (alpharetzyfake2)]

tried to reproduce, but didn’t work. Trying to even pasting the contents into the ModuleScript at ServerStorage just crashes Studio

[CrossBeast]

Any news? Its been difficult to develop these past couple of days

[WheretIB]

Studio crash has been fixed in 633 update.

Autocomplete will still be disabled when a module with an issue that previously would cause a hard crash is encountered.

[5uphi]

Looks like this bug has been fixed autocomplete currently working for me in version 636

Thank you