- apply review changes

Author: mj-wtg

src/WTG.Analyzers.Test/TestData/VisibilityAnalyzer/Partial/Diagnostics.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <diagnostics severity="Hidden">
 	<languageVersion>9.0</languageVersion>
-	<suppressId justtification="To ignore when only one method in one class have the code fix removing 'private' applied.">CS8799</suppressId>
+	<suppressId>CS8799</suppressId>
 	<diagnostic id="WTG1001" message="Our convention is to omit the 'private' modifier where it is already the default.">
 		<location>Test0.cs: (9,3-10)</location>
 	</diagnostic>

src/WTG.Analyzers.Test/TestData/VisibilityAnalyzer/Partial/Result.cs

@@ -14,7 +14,7 @@ partial class Foo
 	{
 		private partial int Bar() { return default; }
 		public partial void FooBar() { }
-		private partial int FooBarBaz(out int value) { value = default; return default; }
+		private partial int FooBarBaz(out int value) => throw null;
 
 		partial void Qux() { }
 		private partial void Quux(out int value) { value = default; }

src/WTG.Analyzers.Test/TestData/VisibilityAnalyzer/Partial/Source.cs

@@ -14,7 +14,7 @@ partial class Foo
 	{
 		private partial int Bar() { return default; }
 		public partial void FooBar() { }
-		private partial int FooBarBaz(out int value) { value = default; return default; }
+		private partial int FooBarBaz(out int value) => throw null;
 
 		private partial void Qux() { }
 		private partial void Quux(out int value) { value = default; }

src/WTG.Analyzers/Analyzers/Visibility/VisibilityAnalyzer.cs

@@ -50,7 +50,7 @@ static void Analyze(SyntaxNodeAnalysisContext context, FileDetailCache cache)
 
 					case SyntaxKind.ProtectedKeyword:
 					case SyntaxKind.PublicKeyword:
-					case SyntaxKind.PartialKeyword when (DoesMethodHaveReturnValueOrOutKeyword(currentNode)):
+					case SyntaxKind.PartialKeyword when (PartialMethodRequiresAccessibilityModifier(currentNode)):
 						return;
 					case SyntaxKind.InternalKeyword:
 						if (IsTopLevel(currentNode))
@@ -67,21 +67,24 @@ static void Analyze(SyntaxNodeAnalysisContext context, FileDetailCache cache)
 			}
 		}
 
-		static bool DoesMethodHaveReturnValueOrOutKeyword(SyntaxNode node)
+		static bool PartialMethodRequiresAccessibilityModifier(SyntaxNode node)
 		{
 			if (!node.IsKind(SyntaxKind.MethodDeclaration))
 			{
 				return false;
 			}
 
 			var methodNode = (MethodDeclarationSyntax)node;
-			if (methodNode.ReturnType is PredefinedTypeSyntax predefinedTypeSyntax
-				&& !predefinedTypeSyntax.Keyword.IsKind(SyntaxKind.VoidKeyword))
+			if (methodNode.ReturnType.IsKind(SyntaxKind.PredefinedType))
 			{
-				return true;
+				var returnType = (PredefinedTypeSyntax)methodNode.ReturnType;
+				if (!returnType.Keyword.IsKind(SyntaxKind.VoidKeyword))
+				{
+					return true;
+				}
 			}
 
-			if (methodNode.ParameterList?.Parameters.Any(c => c.Modifiers.Any(SyntaxKind.OutKeyword)) == true)
+			if (methodNode.ParameterList?.Parameters.Any(static p => p.Modifiers.Any(SyntaxKind.OutKeyword)) == true)
 			{
 				return true;
 			}