roslyn: Unexpected message level diagnostics in error list
Version Used: Version 16.8.0 Preview 1.0 [30313.6.master]
Steps to Reproduce:
- Open a solution
- Enable the “Messages” tab on the error list
Expected Behavior:
A relatively clean error list, even with Messages
enabled (at least, for people that care about code style).
Actual Behavior: A bunch of message level diagnostics in the Error List for things that I wouldn’t expect to see there. For example:
Severity Code Description Project File Line Suppression State
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Data\AreaStatsByWeek.cs 60
Message IDE0046 'if' statement can be simplified C:\Code\YouHaveIssues\YouHaveIssues\AzureAuthenticationService.cs 57
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\AzureAuthenticationService.cs 85
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Data\AreaStatsByWeek.cs 61
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Data\AreaStatsByWeek.cs 96
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Data\AreaStatsByWeek.cs 97
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\KustoContext.cs 67
Message IDE0005_gen Using directive is unnecessary. C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\.NETCoreApp,Version=v3.1.AssemblyAttributes.cs 2
Message RemoveUnnecessaryImportsFixable C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\.NETCoreApp,Version=v3.1.AssemblyAttributes.cs 2
Message IDE0005_gen Using directive is unnecessary. C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\YouHaveIssues.AssemblyInfo.cs 11
Message RemoveUnnecessaryImportsFixable C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\YouHaveIssues.AssemblyInfo.cs 11
Message IDE0005_gen Using directive is unnecessary. C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\YouHaveIssues.RazorAssemblyInfo.cs 11
Message RemoveUnnecessaryImportsFixable C:\Code\YouHaveIssues\YouHaveIssues\obj\Debug\netcoreapp3.1\YouHaveIssues.RazorAssemblyInfo.cs 11
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Program.cs 33
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\RepositoryConfig.cs 11
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 28
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 31
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 39
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 40
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 42
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 43
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 46
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 57
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 59
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 60
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 61
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 69
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 73
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 75
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 78
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 79
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 81
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 83
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 84
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 86
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 88
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 89
Message IDE0058 Expression value is never used C:\Code\YouHaveIssues\YouHaveIssues\Startup.cs 90
About this issue
- Original URL
- State: closed
- Created 4 years ago
- Comments: 15 (14 by maintainers)
Thanks @ryanbrandenburg @Pilchie - I confirmed this only happens when Razor LSP Preview experience enabled in Tools\Options\Environment\Preview Features.
I investigated it and this seems to be an issue specific to LSP - tagging @dibarbet @allisonchou, more specifically the fact that LSP does not have concept of hidden diagnostics and treats them equivalent to info/message diagnostics: https://github.com/dotnet/roslyn/blob/f14fd53433507d9d5664cb1d0836ec8fcb5606b9/src/Features/LanguageServer/Protocol/Extensions/ProtocolConversions.cs#L197-L200