Updated SA1015 analyzer to handle generic attributes (c# 11 preview)

#3487
DotNetAnalyzers · May 2, 2022 · 0d459d4 · 0d459d4
1 parent 4fba7cd
commit 0d459d4
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diff --git a/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp11/SpacingRules/SA1015CSharp11UnitTests.cs b/StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp11/SpacingRules/SA1015CSharp11UnitTests.cs
@@ -5,9 +5,36 @@
 
 namespace StyleCop.Analyzers.Test.CSharp11.SpacingRules
 {
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp10.SpacingRules;
+    using Xunit;
+
+    using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
+        StyleCop.Analyzers.SpacingRules.SA1015ClosingGenericBracketsMustBeSpacedCorrectly,
+        StyleCop.Analyzers.SpacingRules.TokenSpacingCodeFixProvider>;
 
     public class SA1015CSharp11UnitTests : SA1015CSharp10UnitTests
     {
+        [Fact]
+        [WorkItem(3487, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3487")]
+        public async Task TestGenericAttributeAsync()
+        {
+            var testCode = $@"
+using System;
+
+public class MyAttribute<T> : Attribute
+{{
+}}
+
+public class MyClass
+{{
+    [MyAttribute<int>]
+    public double MyDouble {{ get; set; }}
+}}";
+
+            await VerifyCSharpDiagnosticAsync(testCode, DiagnosticResult.EmptyDiagnosticResults, CancellationToken.None).ConfigureAwait(false);
+        }
     }
 }
diff --git a/...zers/StyleCop.Analyzers/SpacingRules/SA1015ClosingGenericBracketsMustBeSpacedCorrectly.cs b/...zers/StyleCop.Analyzers/SpacingRules/SA1015ClosingGenericBracketsMustBeSpacedCorrectly.cs
@@ -141,6 +141,9 @@ private static void HandleGreaterThanToken(SyntaxTreeAnalysisContext context, Sy
                 // values[x as T<int>]
                 //                  ^^
                 case SyntaxKind.CloseBracketToken when nextToken.Parent.IsKind(SyntaxKind.BracketedArgumentList):
+                // [MyAttribute<T>]
+                //               ^^
+                case SyntaxKind.CloseBracketToken when nextToken.Parent.IsKind(SyntaxKind.AttributeList):
                     allowTrailingNoSpace = true;
                     allowTrailingSpace = false;
                     break;