Fix analyzer RCS0012 (#1472)

Author: josefpihrt

ChangeLog.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fix analyzer [RCS1108](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS1108) ([PR](https://github.com/dotnet/roslynator/pull/1469))
 - Fix analyzer [RCS1201](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS1201) ([PR](https://github.com/dotnet/roslynator/pull/1470))
+- Fix analyzer [RCS0012](https://josefpihrt.github.io/docs/roslynator/analyzers/RCS0012) ([PR](https://github.com/dotnet/roslynator/pull/1472))
 
 ## [4.12.3] - 2024-05-10
 

src/Formatting.Analyzers/CSharp/BlankLineBetweenDeclarationsAnalyzer.cs

@@ -204,14 +204,16 @@ private static void AnalyzeEnumDeclaration(SyntaxNodeAnalysisContext context)
             if ((isSingleLine ?? (isSingleLine = tree.IsSingleLineSpan(member.Span, cancellationToken)).Value)
                 && (isPreviousSingleLine ?? tree.IsSingleLineSpan(members[i - 1].Span, cancellationToken)))
             {
-                if (!block.ContainsDocumentationComment
-                    && block.Kind == TriviaBlockKind.BlankLine)
+                if (!block.ContainsDocumentationComment)
                 {
-                    ReportDiagnostic(context, DiagnosticRules.RemoveBlankLineBetweenSingleLineDeclarationsOfSameKind, block);
-                }
-                else
-                {
-                    ReportDiagnostic(context, DiagnosticRules.AddBlankLineBetweenSingleLineDeclarations, block);
+                    if (block.Kind == TriviaBlockKind.BlankLine)
+                    {
+                        ReportDiagnostic(context, DiagnosticRules.RemoveBlankLineBetweenSingleLineDeclarationsOfSameKind, block);
+                    }
+                    else
+                    {
+                        ReportDiagnostic(context, DiagnosticRules.AddBlankLineBetweenSingleLineDeclarations, block);
+                    }
                 }
             }
             else if (block.Kind != TriviaBlockKind.BlankLine)

src/Tests/Formatting.Analyzers.Tests/RCS0012AddBlankLineBetweenSingleLineDeclarationsTests.cs

@@ -135,6 +135,25 @@ enum E
     /// </summary>
     B = 1
 }
+");
+    }
+
+    [Fact, Trait(Traits.Analyzer, DiagnosticIdentifiers.AddBlankLineBetweenSingleLineDeclarations)]
+    public async Task TestNoDiagnostic_EnumMemberDeclarations_DocumentationComment()
+    {
+        await VerifyNoDiagnosticAsync(@"
+public enum C
+{
+    /// <summary>
+    /// a
+    /// </summary>
+    A = 0,
+
+    /// <summary>
+    /// b
+    /// </summary>
+    B = 1
+}
 ");
     }
 }