Question Source Generator - access AssetDatabase in ISourceGenerator

Hello. Title is self-explanatory. Is there a way to access AssetDatabase and other UnityEditor apis in Roslyn source generator to traverse entities and generate code based on results?

Particular usecases I want to achieve:

• generate convinient monobehaviour wrappers for gameobjects automatically based on hierarchy
  
• analyze if MySuperPuperCreateEntity(string prefabPath) function accepts really existing prefab

 

I do this in my Datasacks package, iterating assets (in this case ScriptableObjects called Datasacks) and producing static classes according to what it finds, and then generating a live index of them all.

It's in this file:

https://github.com/kurtdekker/datas...cks/Assets/Datasack/Core/DatasackInspector.cs

Look for the

GenerateCode()

method.

 

The question was about c# source code generators - https://docs.microsoft.com/en-us/dotnet/csharp/roslyn-sdk/source-generators-overview

 

Correction. Your question was actually:

I answered above with an example that uses both the AssetDatabase and UnityEditor.

If you have questions about a Microsoft/Roslyn product, you may wish to visit a board that supports that product.

 

But title contains ISourceGenerator. Anyway, edited original message to indicate that I am interested in Roslyn source generators, which are part of 2021 lts release.

 

You can't. The generator runs in a separate process from Unity during compilation. Your best bet would be to hook up to CompilationPipeline.compilationStarted event, gather the data needed by the generator, save it in a file and read from that file while the generator is working.