Need help with Roslyn

[sschmid]

Need help with Roslyn

I'm stuck on a roslyn issue and need help.

Setup:

I want to get the ContextAttribute from a component using Roslyn, e.g.

• Context("Test1")
• Context("Test2")

using Entitas;
using Entitas.Plugins.Attributes;

namespace My.Namespace
{
    [Context("Test1"), Context("Test2")]
    public sealed class MyComponent : IComponent
    {
        public string Value;
    }
}

Problem:

The ContextAttribute is not recognized.

I created a branch with a failing unit test to reproduce and help debugging:

• branch: roslyn-attributes
• test: AttributesTests.TestFixtures()

More info

• The unit test fails and the attribute is Entitas.Context instead of Entitas.Plugins.Attributes.ContextAttribute("Test1")
• The AttributeClass is ExtendendErrorTypeSymbol instead of NonErrorTypedSymbol
• Even System attributes like System.Obsolete is not recognized
• I could fix System attributes by manually adding MetadataReference, but could not fix the Entitas attributes

project = project.AddMetadataReference(MetadataReference.CreateFromFile(typeof(object).GetTypeInfo().Assembly.Location))
    .AddMetadataReference(MetadataReference.CreateFromFile(Path.Combine(ProjectPath, "bin", "Release", "Entitas.dll")))
    .AddMetadataReference(MetadataReference.CreateFromFile(Path.Combine(ProjectPath, "bin", "Release", "Entitas.Plugins.Attributes.dll")));

• When compiling the code generator and running it on the test fixtures project, everything works as expected. Only the unit tests are failing?!
• For sanity reasons, I added a test pointing to the Match-One project where I modified the AssetComponent similar to the test component, and the test passes.

using System;
using Entitas;
using Entitas.Plugins.Attributes;

[Game, Context("Test"), Obsolete("My Reason")]
public sealed class AssetComponent : IComponent
{
    public string Value;
}

Summary:

• Code Generator itself works
• Only unit test fails (?!?)
• Tests work on Match One (old style csproj)
• Tests fail on Test Fixtures (sdk style csproj) and symbols are not resolved correctly

Do I need to manually add more project or assembly references?
Am I loading the project wrong?
Do I somehow run the unit test in a different way as the code generator?

Any help is appreciated!

[sschmid]

I extracted the affected code to a minimal standalone setup that can be tested easily:

https://github.com/sschmid/RoslynUnitTestIssue

[xtqqksszml]

Hi, sschmid. I'm stuck on a roslyn issue too.
I was run all tests with Entitas-1.14.2, and I got several errors in Entitas.CodeGeneration.Tests. you can see the picture.
Is this the same problem as yours? Were you fixed it?

[sschmid]

@xtqqksszml yes, that's exactly the issue. Those fail for me too.

I recreated the issue in the minimal project setup mentioned above:
https://github.com/sschmid/RoslynUnitTestIssue

Still not sure how to fix it... any help is appreciated

[sschmid]

Solved by adding NuGet.Frameworks package to the test project

sschmid/RoslynUnitTestIssue#1 (comment)

dotnet/roslyn#52954

[xtqqksszml]

@sschmid Thank you. I just tried it again, and It was solved.