Convert DecompilerSettings to a record class

ICSharpCode.Decompiler/CSharp/CSharpDecompiler.cs

@@ -1742,7 +1742,7 @@ namespace ICSharpCode.Decompiler.CSharp
 
 				AddAnnotationsToDeclaration(method, entityDecl, function);
 
-				var localSettings = settings.Clone();
+				var localSettings = settings.DeepClone();
 				if (IsWindowsFormsInitializeComponentMethod(method))
 				{
 					localSettings.UseImplicitMethodGroupConversion = false;

ICSharpCode.Decompiler/DecompilerSettings.cs

@@ -27,7 +27,7 @@ namespace ICSharpCode.Decompiler
 	/// <summary>
 	/// Settings for the decompiler.
 	/// </summary>
-	public class DecompilerSettings : INotifyPropertyChanged
+	public record class DecompilerSettings : INotifyPropertyChanged
 	{
 		/// <summary>
 		/// Equivalent to <c>new DecompilerSettings(LanguageVersion.Latest)</c>
@@ -2238,9 +2238,11 @@ namespace ICSharpCode.Decompiler
 			}
 		}
 
-		public DecompilerSettings Clone()
+		protected virtual DecompilerSettings ShallowClone() => this with { };
+
+		public DecompilerSettings DeepClone()
 		{
-			DecompilerSettings settings = (DecompilerSettings)MemberwiseClone();
+			DecompilerSettings settings = ShallowClone();
 			if (csharpFormattingOptions != null)
 				settings.csharpFormattingOptions = csharpFormattingOptions.Clone();
 			settings.PropertyChanged = null;

ILSpy/DecompilationOptions.cs

@@ -90,7 +90,7 @@ namespace ICSharpCode.ILSpy
 			if (!Enum.TryParse(version?.Version, out Decompiler.CSharp.LanguageVersion languageVersion))
 				languageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 
-			var newSettings = this.DecompilerSettings = settings.Clone();
+			var newSettings = this.DecompilerSettings = settings.DeepClone();
 
 			newSettings.SetLanguageVersion(languageVersion);
 			newSettings.ExpandMemberDefinitions = displaySettings.ExpandMemberDefinitions;

ILSpy/ExtensionMethods.cs

@@ -78,7 +78,7 @@ namespace ICSharpCode.ILSpy
 
 		public static ICompilation? GetTypeSystemWithCurrentOptionsOrNull(this MetadataFile file, SettingsService settingsService, LanguageVersion languageVersion)
 		{
-			var decompilerSettings = settingsService.DecompilerSettings.Clone();
+			var decompilerSettings = settingsService.DecompilerSettings.DeepClone();
 			if (!Enum.TryParse(languageVersion?.Version, out Decompiler.CSharp.LanguageVersion csharpLanguageVersion))
 				csharpLanguageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 			decompilerSettings.SetLanguageVersion(csharpLanguageVersion);

ILSpy/Languages/CSharpLanguage.cs

@@ -578,7 +578,7 @@ namespace ICSharpCode.ILSpy
 			CSharpAmbience ambience = new CSharpAmbience();
 			// Do not forget to update CSharpAmbienceTests.ILSpyMainTreeViewTypeFlags, if this ever changes.
 			ambience.ConversionFlags = ConversionFlags.ShowTypeParameterList | ConversionFlags.PlaceReturnTypeAfterParameterList;
-			var decompilerSettings = SettingsService.DecompilerSettings.Clone();
+			var decompilerSettings = SettingsService.DecompilerSettings.DeepClone();
 			if (!Enum.TryParse(AssemblyTreeModel.CurrentLanguageVersion?.Version, out Decompiler.CSharp.LanguageVersion languageVersion))
 				languageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 			decompilerSettings.SetLanguageVersion(languageVersion);
@@ -789,7 +789,7 @@ namespace ICSharpCode.ILSpy
 		public override bool ShowMember(IEntity member)
 		{
 			MetadataFile assembly = member.ParentModule.MetadataFile;
-			var decompilerSettings = SettingsService.DecompilerSettings.Clone();
+			var decompilerSettings = SettingsService.DecompilerSettings.DeepClone();
 			if (!Enum.TryParse(AssemblyTreeModel.CurrentLanguageVersion?.Version, out Decompiler.CSharp.LanguageVersion languageVersion))
 				languageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 			decompilerSettings.SetLanguageVersion(languageVersion);
@@ -802,7 +802,7 @@ namespace ICSharpCode.ILSpy
 			var output = new StringWriter();
 			var decoratedWriter = new TextWriterTokenWriter(output);
 			var writer = new CSharpHighlightingTokenWriter(TokenWriter.InsertRequiredSpaces(decoratedWriter), locatable: decoratedWriter);
-			var settings = SettingsService.DecompilerSettings.Clone();
+			var settings = SettingsService.DecompilerSettings.DeepClone();
 			if (!Enum.TryParse(AssemblyTreeModel.CurrentLanguageVersion?.Version, out Decompiler.CSharp.LanguageVersion languageVersion))
 				languageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 			settings.SetLanguageVersion(languageVersion);

ILSpy/Options/DecompilerSettings.cs

@@ -27,7 +27,7 @@ using System.Xml.Linq;
 
 namespace ICSharpCode.ILSpy.Options
 {
-	public class DecompilerSettings : Decompiler.DecompilerSettings, ISettingsSection
+	public record class DecompilerSettings : Decompiler.DecompilerSettings, ISettingsSection
 	{
 		static readonly PropertyInfo[] properties = typeof(Decompiler.DecompilerSettings).GetProperties()
 				.Where(p => p.GetCustomAttribute<BrowsableAttribute>()?.Browsable != false)
@@ -57,14 +57,9 @@ namespace ICSharpCode.ILSpy.Options
 			}
 		}
 
-		public new DecompilerSettings Clone()
+		public new DecompilerSettings DeepClone()
 		{
-			var section = SaveToXml();
-
-			var newSettings = new DecompilerSettings();
-			newSettings.LoadFromXml(section);
-
-			return newSettings;
+			return (DecompilerSettings)base.DeepClone();
 		}
 	}
 }

ILSpy/Search/SearchPane.xaml.cs

@@ -474,11 +474,11 @@ namespace ICSharpCode.ILSpy.Search
 				request.RegEx = regex;
 				request.SearchResultFactory = new SearchResultFactory(language);
 				request.TreeNodeFactory = this.treeNodeFactory;
-				var decompilerSettings = settingsService.DecompilerSettings.Clone();
+				var decompilerSettings = settingsService.DecompilerSettings.DeepClone();
 				if (!Enum.TryParse(this.languageVersion?.Version, out Decompiler.CSharp.LanguageVersion languageVersion))
 					languageVersion = Decompiler.CSharp.LanguageVersion.Latest;
 				decompilerSettings.SetLanguageVersion(languageVersion);
-				request.DecompilerSettings = settingsService.DecompilerSettings.Clone();
+				request.DecompilerSettings = settingsService.DecompilerSettings.DeepClone();
 
 				return request;
 			}