dotnet/roslyn

Red squiggly line in VS when diagnostic is suppressed

Ouverte

#57 041 ouverte le 8 oct. 2021

 (4 commentaires) (2 réactions) (0 personne assignée)C# (4 257 forks)batch import
Area-AnalyzersBughelp wanted

Métriques du dépôt

Stars
 (20 414 étoiles)
Métriques de merge PR
 (Merge moyen 6j 17h) (256 PRs mergées en 30 j)

Description

Version Used:

Microsoft Visual Studio Enterprise 2019 Version 16.11.3 Microsoft.CodeAnalysis Version 3.11.0

Steps to Reproduce:

This solution reproduces the issue: https://github.com/dotnet/roslyn/files/7303368/DUTester.zip It's using TreatWarningsAsErrors, meaning the reported CS8509 would fail the build.

  1. At line 14 in Program.cs there is a switch expression which reports a CS8509 warning. The warning is suppressed by another analyzer because it's a discriminated union, where the other analyzer checked that all cases are handled.

Expected Behavior: No squiggly lines on the switch expression

Actual Behavior: Squiggly lines on the switch expression. The build still succeeds, so it appears to be a visualization issue in VS.

Guide contributeur