Analyzers

• CA1515: Consider making public types internal
• CA1064: Exceptions should be public

Analyzer source

Version: SDK 9.0.100-preview.1

Describe the bug

Setting the visibility of an Exception class to public causes a CA1515 warning, whereas setting it to internal causes a CA1064 warning.

Steps To Reproduce

ConsoleApp1.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net9.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <AnalysisMode>AllEnabledByDefault</AnalysisMode>
  </PropertyGroup>
</Project>

Program.cs

throw new ExampleException("Test");

public sealed class ExampleException : Exception // or internal
{
  public ExampleException(string message) : base(message) { }
  public ExampleException(string message, Exception innerException) : base(message, innerException) { }
}

Expected behavior

One of the visibility modifiers (public or internal) should compile without either compiler warning.

Actual behavior

Both options result in a compiler warning.