Factorio Forums

I am writing a mod (Bottleneck), which puts indicator lights on assembling machines and furnaces. The mod keeps track of these with a table "overlays" that maps machine to its indicator light. So far so good. The problem comes, if I place this table in global (i.e., replace "overlays" with "global.overlays"). Then I get this error on load time:

Error while running deserialisation: [string "do local _={overlays={},freeze={}};local tabl..."]:1: too many local variables (limit is 200) in main function near '='

I only get this error, when I have more than 200 a bunch of assembling machines in the table. What is the correct way to do this?

Can you provide the actual code that causing the problem? The error cuts it off.

DedlySpyder wrote:Can you provide the actual code that causing the problem? The error cuts it off.

The error occurs in the deserialisation, and thus not directly in code that I have written. The code for the mod can be found here: https://raw.githubusercontent.com/troel ... ontrol.lua.

Zinal posted a fix. It appears that serialisation doesn't work properly, if the table contains entities as indices or values.

https://github.com/troelsbjerre/Bottleneck/issues/1

trold wrote:Zinal posted a fix. It appears that serialisation doesn't work properly, if the table contains entities as indices or values.

https://github.com/troelsbjerre/Bottleneck/issues/1

Yes it does, you're just hitting a built in limit of Lua. See my reply on the github conversation.

Rseding91 wrote:Yes it does, you're just hitting a built in limit of Lua. See my reply on the github conversation.

Could I get you to check out the "naiveglobal" branch of troelsbjerre/Bottleneck, and have a look at why that give an error after saving and loading? As far as I can see, I only have two values directly in the global table.

trold wrote:

Rseding91 wrote:Yes it does, you're just hitting a built in limit of Lua. See my reply on the github conversation.

Could I get you to check out the "naiveglobal" branch of troelsbjerre/Bottleneck, and have a look at why that give an error after saving and loading? As far as I can see, I only have two values directly in the global table.

Can you upload a save file that has this issue in it?

Can you upload a save file that has this issue in it?

Sent in a PM.

So what was the conclusion of that thread ? Any solution to avoid the serialisation problem on long lists ?
Is avoiding table indexed with entities is the final solution ?
No limitations on tables indexed by numbers of strings ?

binbinhfr wrote:So what was the conclusion of that thread ? Any solution to avoid the serialisation problem on long lists ?
Is avoiding table indexed with entities is the final solution ?
No limitations on tables indexed by numbers of strings ?

It's a limitation of the lua library - not something we can change.

Rseding91 wrote:It's a limitation of the lua library - not something we can change.

Ok, thx Rseding, I just wanted a clarification on what should be avoided.
If you have in minds other coding situations that could lead to such errors, please share