Bug Roslyn Analyzer/Generator Scope Works Unexpectedly

I tried to use source generator example in this unity documentation. This works correctly but I getting CS0436 error in console. Its normal or is there something wrong?

Code (CSharp):

1. Assets\Example.cs(7,16): warning CS0436: The type 'ExampleSourceGenerated' in 'UnitySourceGenerator\UnitySourceGenerator.ExampleSourceGenerator\exampleSourceGenerator.cs' conflicts with the imported type 'ExampleSourceGenerated' in 'Unity.EditorCoroutines.Editor, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null'. Using the type defined in 'UnitySourceGenerator\UnitySourceGenerator.ExampleSourceGenerator\exampleSourceGenerator.cs'.

 

Sounds like the class you are generating uses the same class name as the script that generates it (which presumably is defined in Example.cs).

 

No they are not same name.
I decompiled Unity assemblies, for instance a UnityEngine.UI and I saw that source generator generates seperate code for every different assembly. Then I guess the meaning of the CS0436 warning is you are calling current Assembly's A.B.C() method but there are same declerated method in another assembly.

 

Documentation says "Unity applies analyzers to all assemblies in your project’s Assets folder". But its generate code for assemblies in the Library folder too. According to the documentation this should not be the case.
For instance UnityEngine.UI contains analyzers.

 

Thanks, yes there is some ways to fix that. But I wondered that. It is the some kind of bug or documentations is misleading?

 

Making the generated attribute class internal fixed it for me. Thanks.

Code (CSharp):

1.  
2.  
3.      public string Source => @"
4. using System;
5.  
6. namespace MyGenerators
7. {
8.    [AttributeUsage(AttributeTargets.Class, Inherited = true, AllowMultiple = false)]
9.    internal class SomeGeneratedAttribute : Attribute
10.    {
11.    
12.    }
13. }";