"in" keyword not recognized by API updater

We use the `in` keyword a lot in our codebase, but as soon as the auto-updater sees it, it stops and says so in an error.

 

Please provide the code in question, and the error that you are receiving.

 

This is the truncated error:

Code (CSharp):

1. APIUpdater encountered some issues and was not able to finish.
2.  
3.     [Script Updater] Assets\Scripts\Systems\Server\EffectControllerServerSystem.cs(49,71): error CS1525: Invalid expression term 'in'
4.     [Script Updater] Assets\Scripts\Systems\Client\PlayerPhysicsSystem.cs(48,76): error CS1525: Invalid expression term 'in'
5.     [Script Updater] Assets\Scripts\Data\EffectParamData.cs(35,36): error CS1041: Identifier expected; 'in' is a keyword
6.     [Script Updater] Assets\Scripts\Effects\EffectEnergy.cs(67,61): error CS1041: Identifier expected; 'in' is a keyword
7.     [Script Updater] Assets\Scripts\Systems\Client\PlayerInputSystem.cs(52,78): error CS1041: Identifier expected; 'in' is a keyword
8.     [Script Updater] Assets\Scripts\Utility\EffectUtility.cs(39,145): error CS1031: Type expected
9.  

Example call for EffectControllerServerSystem.cs:

var shouldRemove = ShouldRemoveEntry(globalTime, in entry, effectData, in combat);

Definition for that code:

protected static bool ShouldRemoveEntry(float globalTime, in LastingEffectEntry entry, EffectData effectData, in Combat.Component combat)

The last error in this log (Type expected in EffectUtility.cs) is also caused by using `in Vector3 position`.

 

Unity 2019.1.6f1

Scripting backend Mono .Net 4.x

 

I think it did the job, I just assumed it couldn't based on the errors.

Thanks