Merge pull request #3245 from pantosha/fix-3240

Update SA1413 to support with initializer

Author: sharwell

StyleCop.Analyzers/StyleCop.Analyzers.Test.CSharp9/MaintainabilityRules/SA1413CSharp9UnitTests.cs

@@ -3,9 +3,66 @@
 
 namespace StyleCop.Analyzers.Test.CSharp9.MaintainabilityRules
 {
+    using System.Threading;
+    using System.Threading.Tasks;
+    using Microsoft.CodeAnalysis.CSharp;
+    using Microsoft.CodeAnalysis.Testing;
     using StyleCop.Analyzers.Test.CSharp8.MaintainabilityRules;
+    using Xunit;
+    using static StyleCop.Analyzers.Test.Verifiers.StyleCopCodeFixVerifier<
+        StyleCop.Analyzers.MaintainabilityRules.SA1413UseTrailingCommasInMultiLineInitializers,
+        StyleCop.Analyzers.MaintainabilityRules.SA1413CodeFixProvider>;
 
     public class SA1413CSharp9UnitTests : SA1413CSharp8UnitTests
     {
+        [Fact]
+        [WorkItem(3240, "https://github.com/DotNetAnalyzers/StyleCopAnalyzers/issues/3240")]
+        public async Task VerifyWithInitializerAsync()
+        {
+            var testCode = @"namespace TestNamespace
+{
+    public record R
+    {
+        public int A { get; set; }
+
+        public int B { get; set; }
+
+        void M()
+        {
+            _ = this with { A = 1, B = 2 };
+            _ = this with { A = 1, B = 2, };
+            _ = this with
+            {
+                A = 1,
+                [|B = 2|]
+            };
+        }
+    }
+}
+";
+            var fixedCode = @"namespace TestNamespace
+{
+    public record R
+    {
+        public int A { get; set; }
+
+        public int B { get; set; }
+
+        void M()
+        {
+            _ = this with { A = 1, B = 2 };
+            _ = this with { A = 1, B = 2, };
+            _ = this with
+            {
+                A = 1,
+                B = 2,
+            };
+        }
+    }
+}
+";
+
+            await VerifyCSharpFixAsync(LanguageVersion.CSharp9, testCode, DiagnosticResult.EmptyDiagnosticResults, fixedCode, CancellationToken.None).ConfigureAwait(false);
+        }
     }
 }

StyleCop.Analyzers/StyleCop.Analyzers/MaintainabilityRules/SA1413UseTrailingCommasInMultiLineInitializers.cs

@@ -63,7 +63,7 @@ internal class SA1413UseTrailingCommasInMultiLineInitializers : DiagnosticAnalyz
         private static readonly Action<SyntaxNodeAnalysisContext> HandleSwitchExpressionAction = HandleSwitchExpression;
 
         private static readonly ImmutableArray<SyntaxKind> ObjectInitializerKinds =
-            ImmutableArray.Create(SyntaxKind.ObjectInitializerExpression, SyntaxKind.ArrayInitializerExpression, SyntaxKind.CollectionInitializerExpression);
+            ImmutableArray.Create(SyntaxKind.ObjectInitializerExpression, SyntaxKind.ArrayInitializerExpression, SyntaxKind.CollectionInitializerExpression, SyntaxKindEx.WithInitializerExpression);
 
         /// <inheritdoc/>
         public override ImmutableArray<DiagnosticDescriptor> SupportedDiagnostics { get; } =