222CSharpParseOptions options = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview);

222CSharpParseOptions options = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview);

38internal static readonly CSharpParseOptions ParseOptions = new CSharpParseOptions(LanguageVersion.Preview).WithFeatures(new[] { new KeyValuePair<string, string>("InterceptorsNamespaces", "Microsoft.AspNetCore.Http.Generated") });

38internal static readonly CSharpParseOptions ParseOptions = new CSharpParseOptions(LanguageVersion.Preview).WithFeatures(new[] { new KeyValuePair<string, string>("InterceptorsNamespaces", "Microsoft.AspNetCore.Http.Generated") });

221parseOptions = parseOptions.WithLanguageVersion(LanguageVersion.CSharp8); 223else if (LanguageVersionFacts.TryParse(dependencyContextOptions.LanguageVersion, out var languageVersion))

125Assert.Equal(LanguageVersion.CSharp8, parseOptions.LanguageVersion); 154Assert.Equal(LanguageVersion.CSharp7_1, compilationOptions.LanguageVersion);

27private static readonly CSharpParseOptions ParseOptions = new CSharpParseOptions(LanguageVersion.Preview)

440Assert.Equal(CSharp.LanguageVersion.CSharp13, CSharp.LanguageVersionFacts.CurrentVersion);

36LanguageVersion = LanguageVersion.CSharp11, 62LanguageVersion = LanguageVersion.CSharp11, 85LanguageVersion = LanguageVersion.CSharp11, 108LanguageVersion = LanguageVersion.CSharp11,

28LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp9, 66LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp9, 108LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp9, 139LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp9,

58/// <see cref="LanguageVersion.CSharp8"/>. 60public LanguageVersion LanguageVersion { get; set; } = LanguageVersion.CSharp8;

58/// <see cref="LanguageVersion.CSharp8"/>. 60public LanguageVersion LanguageVersion { get; set; } = LanguageVersion.CSharp8;

1515var requiredVersion = MessageID.IDS_FeatureFieldKeyword.RequiredVersion(); 4579LanguageVersion requiredVersion = MessageID.IDS_FeatureNestedStackalloc.RequiredVersion(); 10984if (Compilation.LanguageVersion < LanguageVersion.CSharp13)

630var requiredVersion = MessageID.IDS_FeatureRecursivePatterns.RequiredVersion(); 773LanguageVersion requiredVersion = MessageID.IDS_FeatureGenericPatternMatching.RequiredVersion();

619internal static CSDiagnosticInfo? GetNullableUnconstrainedTypeParameterDiagnosticIfNecessary(LanguageVersion languageVersion, in TypeWithAnnotations type) 625var requiredVersion = MessageID.IDS_FeatureDefaultTypeParameterConstraint.RequiredVersion();

1315(binder.Compilation.LanguageVersion > LanguageVersion.CSharp12 || member.ContainingModule == binder.Compilation.SourceModule))) 3039if (Compilation.LanguageVersion < LanguageVersion.CSharp13)

88LanguageVersion languageVersion = LanguageVersion.Default;

285var defaultVersion = LanguageVersion.Default.MapSpecifiedToEffectiveVersion(); 286var latestVersion = LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(); 287foreach (var v in (LanguageVersion[])Enum.GetValues(typeof(LanguageVersion)))

227internal bool IsPeVerifyCompatEnabled => LanguageVersion < LanguageVersion.CSharp7_2 || Feature("peverify-compat") != null; 318public LanguageVersion LanguageVersion 534private static LanguageVersion CommonLanguageVersion(ImmutableArray<SyntaxTree> syntaxTrees) 536LanguageVersion? result = null; 539var version = ((CSharpParseOptions)tree.Options).LanguageVersion; 550return result ?? LanguageVersion.Default.MapSpecifiedToEffectiveVersion();

31public LanguageVersion LanguageVersion { get; private set; } 38public LanguageVersion SpecifiedLanguageVersion { get; private set; } 51LanguageVersion languageVersion = LanguageVersion.Default, 64LanguageVersion languageVersion, 99public CSharpParseOptions WithLanguageVersion(LanguageVersion version) 106var effectiveLanguageVersion = version.MapSpecifiedToEffectiveVersion(); 274LanguageVersion availableVersion = LanguageVersion; 275LanguageVersion requiredVersion = feature.RequiredVersion();

11private readonly LanguageVersion _languageVersion; 14internal LazyUseSiteDiagnosticsInfoForNullableType(LanguageVersion languageVersion, TypeWithAnnotations possiblyNullableTypeSymbol)

463private static CSDiagnosticInfo GetDisabledFeatureDiagnosticInfo(MessageID feature, LanguageVersion availableVersion) 471LanguageVersion requiredVersion = feature.RequiredVersion(); 472return requiredVersion == LanguageVersion.Preview.MapSpecifiedToEffectiveVersion() 477internal static LanguageVersion RequiredVersion(this MessageID feature) 497return LanguageVersion.Preview; 509return LanguageVersion.CSharp13; 520return LanguageVersion.CSharp12; 538return LanguageVersion.CSharp11; 559return LanguageVersion.CSharp10; 587return LanguageVersion.CSharp9; 612return LanguageVersion.CSharp8; 628return LanguageVersion.CSharp7_3; 639return LanguageVersion.CSharp7_2; 646return LanguageVersion.CSharp7_1; 660return LanguageVersion.CSharp7; 675return LanguageVersion.CSharp6; 679return LanguageVersion.CSharp5; 686return LanguageVersion.CSharp4; 699return LanguageVersion.CSharp3; 715return LanguageVersion.CSharp2; 719return LanguageVersion.CSharp1;

2462var requiredVersion = MessageID.IDS_FeatureDefaultTypeParameterConstraint.RequiredVersion();

274internal static bool IsValid(this LanguageVersion value) 278case LanguageVersion.CSharp1: 279case LanguageVersion.CSharp2: 280case LanguageVersion.CSharp3: 281case LanguageVersion.CSharp4: 282case LanguageVersion.CSharp5: 283case LanguageVersion.CSharp6: 284case LanguageVersion.CSharp7: 285case LanguageVersion.CSharp7_1: 286case LanguageVersion.CSharp7_2: 287case LanguageVersion.CSharp7_3: 288case LanguageVersion.CSharp8: 289case LanguageVersion.CSharp9: 290case LanguageVersion.CSharp10: 291case LanguageVersion.CSharp11: 292case LanguageVersion.CSharp12: 293case LanguageVersion.CSharp13: 294case LanguageVersion.Preview: 301internal static ErrorCode GetErrorCode(this LanguageVersion version) 305case LanguageVersion.CSharp1: 307case LanguageVersion.CSharp2: 309case LanguageVersion.CSharp3: 311case LanguageVersion.CSharp4: 313case LanguageVersion.CSharp5: 315case LanguageVersion.CSharp6: 317case LanguageVersion.CSharp7: 319case LanguageVersion.CSharp7_1: 321case LanguageVersion.CSharp7_2: 323case LanguageVersion.CSharp7_3: 325case LanguageVersion.CSharp8: 327case LanguageVersion.CSharp9: 329case LanguageVersion.CSharp10: 331case LanguageVersion.CSharp11: 333case LanguageVersion.CSharp12: 335case LanguageVersion.CSharp13: 345internal LanguageVersion Version { get; } 347internal CSharpRequiredLanguageVersion(LanguageVersion version) 368internal const LanguageVersion CSharpNext = LanguageVersion.Preview; 374public static string ToDisplayString(this LanguageVersion version) 378case LanguageVersion.CSharp1: 380case LanguageVersion.CSharp2: 382case LanguageVersion.CSharp3: 384case LanguageVersion.CSharp4: 386case LanguageVersion.CSharp5: 388case LanguageVersion.CSharp6: 390case LanguageVersion.CSharp7: 392case LanguageVersion.CSharp7_1: 394case LanguageVersion.CSharp7_2: 396case LanguageVersion.CSharp7_3: 398case LanguageVersion.CSharp8: 400case LanguageVersion.CSharp9: 402case LanguageVersion.CSharp10: 404case LanguageVersion.CSharp11: 406case LanguageVersion.CSharp12: 408case LanguageVersion.CSharp13: 410case LanguageVersion.Default: 412case LanguageVersion.Latest: 414case LanguageVersion.LatestMajor: 416case LanguageVersion.Preview: 424/// Try parse a <see cref="LanguageVersion"/> from a string input, returning default if input was null. 426public static bool TryParse(string? version, out LanguageVersion result) 430result = LanguageVersion.Default; 437result = LanguageVersion.Default; 441result = LanguageVersion.Latest; 445result = LanguageVersion.LatestMajor; 449result = LanguageVersion.Preview; 455result = LanguageVersion.CSharp1; 461result = LanguageVersion.CSharp2; 466result = LanguageVersion.CSharp3; 471result = LanguageVersion.CSharp4; 476result = LanguageVersion.CSharp5; 481result = LanguageVersion.CSharp6; 486result = LanguageVersion.CSharp7; 490result = LanguageVersion.CSharp7_1; 494result = LanguageVersion.CSharp7_2; 498result = LanguageVersion.CSharp7_3; 503result = LanguageVersion.CSharp8; 508result = LanguageVersion.CSharp9; 513result = LanguageVersion.CSharp10; 518result = LanguageVersion.CSharp11; 523result = LanguageVersion.CSharp12; 528result = LanguageVersion.CSharp13; 532result = LanguageVersion.Default; 540public static LanguageVersion MapSpecifiedToEffectiveVersion(this LanguageVersion version) 544case LanguageVersion.Latest: 545case LanguageVersion.Default: 546case LanguageVersion.LatestMajor: 547return LanguageVersion.CSharp13; 553internal static LanguageVersion CurrentVersion => LanguageVersion.CSharp13; 556internal static bool DisallowInferredTupleElementNames(this LanguageVersion self) 561internal static bool AllowNonTrailingNamedArguments(this LanguageVersion self) 566internal static bool AllowAttributesOnBackingFields(this LanguageVersion self) 571internal static bool AllowImprovedOverloadCandidates(this LanguageVersion self)

336var specified = this.Options.SpecifiedLanguageVersion; 337var effective = specified.MapSpecifiedToEffectiveVersion(); 347if (this.Options.LanguageVersion != LanguageVersion.Preview && 349LanguageVersionFacts.TryParse(errorText.Substring(versionMarker.Length), out var languageVersion))

155LanguageVersion availableVersion = ((CSharpParseOptions)errorLocation.SourceTree.Options).LanguageVersion; 156LanguageVersion requiredVersion; 196internal static void ReportUnsupportedModifiersForLanguageVersion(DeclarationModifiers modifiers, DeclarationModifiers unsupportedModifiers, Location errorLocation, BindingDiagnosticBag diagnostics, LanguageVersion availableVersion, LanguageVersion requiredVersion) 219LanguageVersion availableVersion = ((CSharpParseOptions)location.SourceTree.Options).LanguageVersion; 220LanguageVersion requiredVersion = MessageID.IDS_FeatureStaticAbstractMembersInInterfaces.RequiredVersion(); 233LanguageVersion availableVersion = ((CSharpParseOptions)location.SourceTree.Options).LanguageVersion; 234LanguageVersion requiredVersion = MessageID.IDS_FeaturePartialEventsAndConstructors.RequiredVersion();

5050var languageVersion = ((CSharpParseOptions)this.GetFirstLocation().SourceTree!.Options).LanguageVersion; 5051var requiredVersion = MessageID.IDS_FeatureSealedToStringInRecord.RequiredVersion();

462LanguageVersion availableVersion = ((CSharpParseOptions)location.SourceTree.Options).LanguageVersion; 463LanguageVersion requiredVersion = MessageID.IDS_FeaturePartialProperties.RequiredVersion();

239LanguageVersion availableVersion = ((CSharpParseOptions)location.SourceTree.Options).LanguageVersion; 240LanguageVersion requiredVersion = MessageID.IDS_FeatureStaticAbstractMembersInInterfaces.RequiredVersion();

696if (parseOptions.LanguageVersion == LanguageVersion.CSharp1)

273var languageVersion = this.DeclaringCompilation.LanguageVersion;

1033LanguageVersion requiredVersion = MessageID.IDS_FeatureImplicitImplementationOfNonPublicMembers.RequiredVersion(); 1034LanguageVersion? availableVersion = implementingType.DeclaringCompilation?.LanguageVersion; 1657LanguageVersion requiredVersion = feature.RequiredVersion(); 1658LanguageVersion? availableVersion = implementingType.DeclaringCompilation?.LanguageVersion; 1758LanguageVersion requiredVersion = MessageID.IDS_FeatureStaticAbstractMembersInInterfaces.RequiredVersion(); 1759LanguageVersion? availableVersion = implementingType.DeclaringCompilation?.LanguageVersion;

48LanguageVersion version) 56if (version < LanguageVersion.CSharp10)

38if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp9 ||

36var analyzer = new Analyzer(supportsOrPatterns: semanticModel.SyntaxTree.Options.LanguageVersion() >= LanguageVersion.CSharp9);

34if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp8)

26if (node.GetLanguageVersion() < LanguageVersion.CSharp6)

67if (csOptions.LanguageVersion < LanguageVersion.CSharp7)

51if (ifStatement.SyntaxTree.Options.LanguageVersion() < LanguageVersion.CSharp6)

32if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp9)

14public static bool IsStaticLocalFunctionSupported(LanguageVersion languageVersion) 15=> languageVersion >= LanguageVersion.CSharp8;

37if (compilation.LanguageVersion() < LanguageVersion.CSharp8)

33if (compilation.LanguageVersion() < LanguageVersion.CSharp7_2)

38if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp9)

36if (compilation.LanguageVersion < LanguageVersion.CSharp8)

30=> tree.Options.LanguageVersion() >= LanguageVersion.CSharp7;

44if (compilationContext.Compilation.LanguageVersion() < LanguageVersion.CSharp10)

39=> compilation.LanguageVersion() >= LanguageVersion.CSharp6; 42=> compilation.LanguageVersion() >= LanguageVersion.CSharp6;

44=> compilation.LanguageVersion() >= LanguageVersion.CSharp3;

23options.LanguageVersion() >= LanguageVersion.CSharp8;

41if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp8)

142var languageVersion = body.SyntaxTree.Options.LanguageVersion(); 196var languageVersion = declaration.GetLanguageVersion(); 197if (languageVersion < LanguageVersion.CSharp7) 218if (languageVersion < LanguageVersion.CSharp6)

56var languageVersion = declaration.SyntaxTree.Options.LanguageVersion(); 58languageVersion < LanguageVersion.CSharp7) 68SemanticModel semanticModel, ExpressionBodyPreference preference, LambdaExpressionSyntax declaration, LanguageVersion languageVersion, CancellationToken cancellationToken) 111LanguageVersion languageVersion,

78var languageVersion = semanticModel.Compilation.LanguageVersion();

43if (syntaxTree.Options.LanguageVersion() < LanguageVersion.CSharp9)

63if (compilation.LanguageVersion < LanguageVersion.CSharp8)

56if (compilation.LanguageVersion() < LanguageVersion.CSharp8)

38if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp7)

22=> compilation.LanguageVersion() >= LanguageVersion.CSharp7; 25=> compilation.LanguageVersion() >= LanguageVersion.CSharp8;

35if (compilation.LanguageVersion() < LanguageVersion.CSharp9)

61if (compilation.LanguageVersion() < LanguageVersion.CSharp7) 128if (options.LanguageVersion() < LanguageVersion.CSharp10)

41if (context.Compilation.LanguageVersion() >= LanguageVersion.CSharp11)

34=> compilation.LanguageVersion() >= LanguageVersion.CSharp6;

36return compilation.LanguageVersion() >= LanguageVersion.CSharp3;

60if (syntaxTree.Options.LanguageVersion() < LanguageVersion.CSharp9)

45if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp8) 66asExpression, out var conditionalAccessExpression, out var binaryExpression, out var isPatternExpression, out var requiredLanguageVersion))

61if (syntaxTree.Options.LanguageVersion() < LanguageVersion.CSharp7)

51if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp7)

42if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp9)

19out LanguageVersion requiredLanguageVersion) 24requiredLanguageVersion = LanguageVersion.CSharp8; 46requiredLanguageVersion = LanguageVersion.CSharp10; 78requiredLanguageVersion = (LanguageVersion)Math.Max((int)requiredLanguageVersion, (int)LanguageVersion.CSharp9);

70if (context.Compilation.LanguageVersion() < LanguageVersion.CSharp8)

25=> compilation.LanguageVersion() >= LanguageVersion.CSharp7;

53if (compilation.LanguageVersion() < LanguageVersion.CSharp7)

22LanguageVersion languageVersion, 116LanguageVersion languageVersion, 125languageVersion >= LanguageVersion.CSharp7 || 126(languageVersion >= LanguageVersion.CSharp6 && IsSupportedInCSharp6(declarationKind)); 181private static bool TryGetExpression(StatementSyntax firstStatement, LanguageVersion languageVersion, [NotNullWhen(true)] out ExpressionSyntax? expression, out SyntaxToken semicolonToken) 204if (languageVersion >= LanguageVersion.CSharp7 && throwStatement.Expression != null)

9public static LanguageVersion LanguageVersion(this Compilation compilation)

25if (parseOptions.LanguageVersion < LanguageVersion.CSharp7_1 ||

9public static bool IsCSharp14OrAbove(this LanguageVersion languageVersion) 10=> languageVersion >= LanguageVersion.Preview; 12public static bool IsCSharp13OrAbove(this LanguageVersion languageVersion) 13=> languageVersion >= LanguageVersion.CSharp13; 15public static bool IsCSharp12OrAbove(this LanguageVersion languageVersion) 16=> languageVersion >= LanguageVersion.CSharp12; 18public static bool IsCSharp11OrAbove(this LanguageVersion languageVersion) 19=> languageVersion >= LanguageVersion.CSharp11; 21public static bool HasConstantInterpolatedStrings(this LanguageVersion languageVersion) 22=> languageVersion >= LanguageVersion.CSharp10; 24public static bool SupportsCollectionExpressions(this LanguageVersion languageVersion) 27public static bool SupportsPrimaryConstructors(this LanguageVersion languageVersion) 30public static bool SupportsExtensions(this LanguageVersion languageVersion) 36internal const LanguageVersion CSharpNext = LanguageVersion.Preview;

9public static LanguageVersion LanguageVersion(this ParseOptions options)

514var languageVersion = semanticModel.SyntaxTree.Options.LanguageVersion(); 517return languageVersion >= LanguageVersion.CSharp11 && semanticModel.Compilation.SupportsRuntimeCapability(RuntimeCapability.NumericIntPtr);

23public static LanguageVersion GetLanguageVersion(this SyntaxNode node)

47=> options.LanguageVersion() >= LanguageVersion.CSharp6; 50=> options.LanguageVersion() >= LanguageVersion.CSharp7; 53=> options.LanguageVersion() >= LanguageVersion.CSharp7; 56=> options.LanguageVersion() >= LanguageVersion.CSharp9; 59=> options.LanguageVersion() >= LanguageVersion.CSharp10; 62=> options.LanguageVersion() >= LanguageVersion.CSharp9; 65=> options.LanguageVersion() >= LanguageVersion.CSharp10; 68=> options.LanguageVersion() >= LanguageVersion.CSharp7; 75=> options.LanguageVersion() >= LanguageVersion.CSharp10; 1413=> options.LanguageVersion() >= LanguageVersion.CSharp9;

19if (parseOptions.LanguageVersion < LanguageVersion.CSharp7_1)

1585if (originalSemanticModel.Compilation.LanguageVersion() < LanguageVersion.CSharp9 &&

838=> originalExpression.GetLanguageVersion() >= LanguageVersion.CSharp9;

318if (!conversion.Exists && expression is LambdaExpressionSyntax && semanticModel.Compilation.LanguageVersion() >= LanguageVersion.CSharp10)

38=> options.LanguageVersion() >= LanguageVersion.CSharp7_3;

40if (root.GetLanguageVersion() < LanguageVersion.CSharp11)

100parent.SyntaxTree.Options.LanguageVersion() >= LanguageVersion.CSharp9)

67private static LanguageVersion RequiredVersion(ImmutableArray<Diagnostic> diagnostics) 69LanguageVersion max = 0; 73LanguageVersionFacts.TryParse(requiredVersion, out var required)) 79max = LanguageVersion.Preview; 91Contract.ThrowIfFalse(LanguageVersionFacts.TryParse(newVersion, out var parsedNewVersion)); 105Contract.ThrowIfFalse(LanguageVersionFacts.TryParse(newVersion, out var parsedNewVersion)); 108var mappedVersion = parsedNewVersion.MapSpecifiedToEffectiveVersion();

26=> options.LanguageVersion() >= LanguageVersion.CSharp9;

89if (languageVersion >= LanguageVersion.CSharp8)

86LanguageVersion languageVersion, 161LanguageVersion languageVersion, 172if (languageVersion >= LanguageVersion.CSharp9)

12public readonly LanguageVersion LanguageVersion; 14public CSharpCodeGenerationContextInfo(CodeGenerationContext context, CSharpCodeGenerationOptions options, CSharpCodeGenerationService service, LanguageVersion languageVersion)

110info.LanguageVersion >= LanguageVersion.CSharp10)

177BasePropertyDeclarationSyntax baseProperty, LanguageVersion languageVersion, ExpressionBodyPreference preference, CancellationToken cancellationToken, 252SyntaxKind declarationKind, AccessorDeclarationSyntax accessor, LanguageVersion languageVersion, ExpressionBodyPreference preference, CancellationToken cancellationToken,

42if (semanticModel.Compilation.LanguageVersion().MapSpecifiedToEffectiveVersion() >= LanguageVersion.CSharp8) 64var isLanguageVersionGreaterOrEqualToCSharp8 = (semanticModel.Compilation as CSharpCompilation)?.LanguageVersion >= LanguageVersion.CSharp8;

196=> ((CSharpParseOptions)options).LanguageVersion >= LanguageVersion.CSharp7;

203LanguageVersion = LanguageVersion.CSharp9, 229LanguageVersion = LanguageVersion.CSharp12, 566LanguageVersion = LanguageVersion.CSharp10, 596LanguageVersion = LanguageVersion.CSharp12, 623LanguageVersion = LanguageVersion.CSharp12, 645LanguageVersion = LanguageVersion.CSharp12, 657LanguageVersion = LanguageVersion.CSharp12, 689LanguageVersion = LanguageVersion.CSharp12, 713LanguageVersion = LanguageVersion.CSharp12, 740LanguageVersion = LanguageVersion.CSharp12, 789LanguageVersion = LanguageVersion.CSharp12, 837LanguageVersion = LanguageVersion.CSharp12, 885LanguageVersion = LanguageVersion.CSharp12, 911LanguageVersion = LanguageVersion.CSharp12,

2810""", parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9)); 2920""", parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9)); 2936""", parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp12)); 2962""", parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9)); 2978""", parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp12));

46LanguageVersion = LanguageVersion.CSharp9, 67LanguageVersion = LanguageVersion.CSharp9, 84LanguageVersion = LanguageVersion.CSharp10, 106LanguageVersion = LanguageVersion.CSharp10, 133LanguageVersion = LanguageVersion.CSharp10, 160LanguageVersion = LanguageVersion.CSharp10, 189LanguageVersion = LanguageVersion.CSharp10, 216LanguageVersion = LanguageVersion.CSharp10, 245LanguageVersion = LanguageVersion.CSharp10, 272LanguageVersion = LanguageVersion.CSharp10, 306LanguageVersion = LanguageVersion.CSharp10, 339LanguageVersion = LanguageVersion.CSharp10, 364LanguageVersion = LanguageVersion.CSharp10, 388LanguageVersion = LanguageVersion.CSharp10, 413LanguageVersion = LanguageVersion.CSharp10, 437LanguageVersion = LanguageVersion.CSharp10, 465LanguageVersion = LanguageVersion.CSharp10, 495LanguageVersion = LanguageVersion.CSharp10, 523LanguageVersion = LanguageVersion.CSharp10, 552LanguageVersion = LanguageVersion.CSharp10, 582LanguageVersion = LanguageVersion.CSharp10,

32LanguageVersion = LanguageVersion.CSharp9, 51LanguageVersion = LanguageVersion.CSharp10, 72LanguageVersion = LanguageVersion.CSharp10, 93LanguageVersion = LanguageVersion.CSharp10, 116LanguageVersion = LanguageVersion.CSharp10, 138LanguageVersion = LanguageVersion.CSharp10, 159LanguageVersion = LanguageVersion.CSharp10, 180LanguageVersion = LanguageVersion.CSharp10, 212LanguageVersion = LanguageVersion.CSharp10, 236LanguageVersion = LanguageVersion.CSharp10, 264LanguageVersion = LanguageVersion.CSharp10, 294LanguageVersion = LanguageVersion.CSharp10, 323LanguageVersion = LanguageVersion.CSharp10, 351LanguageVersion = LanguageVersion.CSharp10, 381LanguageVersion = LanguageVersion.CSharp10, 411LanguageVersion = LanguageVersion.CSharp10, 452LanguageVersion = LanguageVersion.CSharp10, 486LanguageVersion = LanguageVersion.CSharp10, 520LanguageVersion = LanguageVersion.CSharp10, 568LanguageVersion = LanguageVersion.CSharp10, 616LanguageVersion = LanguageVersion.CSharp10, 666LanguageVersion = LanguageVersion.CSharp10, 720LanguageVersion = LanguageVersion.CSharp12, 775LanguageVersion = LanguageVersion.CSharp12, 830LanguageVersion = LanguageVersion.CSharp12, 850LanguageVersion = LanguageVersion.CSharp10, 871LanguageVersion = LanguageVersion.CSharp10, 899LanguageVersion = LanguageVersion.CSharp10, 920LanguageVersion = LanguageVersion.CSharp10, 948LanguageVersion = LanguageVersion.CSharp10, 969LanguageVersion = LanguageVersion.CSharp10, 999LanguageVersion = LanguageVersion.CSharp10, 1031LanguageVersion = LanguageVersion.CSharp10, 1060LanguageVersion = LanguageVersion.CSharp10, 1090LanguageVersion = LanguageVersion.CSharp10, 1162LanguageVersion = LanguageVersion.CSharp11, 1232LanguageVersion = LanguageVersion.CSharp11, 1304LanguageVersion = LanguageVersion.CSharp11, 1390LanguageVersion = LanguageVersion.CSharp11, 1462LanguageVersion = LanguageVersion.CSharp11, 1534LanguageVersion = LanguageVersion.CSharp11, 1555LanguageVersion = LanguageVersion.CSharp10, 1576LanguageVersion = LanguageVersion.CSharp10,

27private static readonly LanguageVersion CSharp9 = LanguageVersion.CSharp9; 2163LanguageVersion = LanguageVersion.CSharp9, 2207LanguageVersion = LanguageVersion.CSharp9, 2530LanguageVersion = LanguageVersion.CSharp9, 2587LanguageVersion = LanguageVersion.CSharp9,

154LanguageVersion = LanguageVersion.CSharp10,

21private static readonly LanguageVersion CSharp14 = LanguageVersion.Preview; 254LanguageVersion = LanguageVersion.CSharp13, 296LanguageVersion = LanguageVersion.CSharp13, 386LanguageVersion = LanguageVersion.CSharp13, 440LanguageVersion = LanguageVersion.CSharp13, 519LanguageVersion = LanguageVersion.CSharp10,

224LanguageVersion = LanguageVersion.CSharp10

3664parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 3694parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 3724parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 3754parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6));

66LanguageVersion = LanguageVersion.CSharp10, 93LanguageVersion = LanguageVersion.CSharp10, 958LanguageVersion = LanguageVersion.CSharp12,

8820parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 8852parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 8884parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6)); 8916parseOptions: TestOptions.Regular.WithLanguageVersion(CodeAnalysis.CSharp.LanguageVersion.CSharp6));

1836""", parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7));

87LanguageVersion = LanguageVersion.CSharp12, 125LanguageVersion = LanguageVersion.CSharp12, 164LanguageVersion = LanguageVersion.CSharp12, 214LanguageVersion = LanguageVersion.CSharp9, 4058LanguageVersion = LanguageVersion.CSharp7_2, 4097LanguageVersion = LanguageVersion.CSharp8, 8308LanguageVersion = LanguageVersion.CSharp7_1, 10396LanguageVersion = LanguageVersion.CSharp9, 10522LanguageVersion = LanguageVersion.CSharp12, 10555LanguageVersion = LanguageVersion.CSharp12, 10588LanguageVersion = LanguageVersion.CSharp12, 10621LanguageVersion = LanguageVersion.CSharp12, 10658LanguageVersion = LanguageVersion.CSharp12, 10689LanguageVersion = LanguageVersion.CSharp9, 10753LanguageVersion = LanguageVersion.CSharp9, 10790LanguageVersion = LanguageVersion.CSharp9, 10827LanguageVersion = LanguageVersion.CSharp9, 11001LanguageVersion = LanguageVersion.CSharp5, 11048LanguageVersion = LanguageVersion.CSharp12, 11083LanguageVersion = LanguageVersion.CSharp12, 11119LanguageVersion = LanguageVersion.CSharp12, 11155LanguageVersion = LanguageVersion.CSharp12, 11188LanguageVersion = LanguageVersion.CSharp12, 11221LanguageVersion = LanguageVersion.Preview, 11255LanguageVersion = LanguageVersion.Preview, 11289LanguageVersion = LanguageVersion.CSharp12, 11329LanguageVersion = LanguageVersion.CSharp12, 11363LanguageVersion = LanguageVersion.Preview, 11399LanguageVersion = LanguageVersion.Preview, 11434LanguageVersion = LanguageVersion.CSharp12, 11468LanguageVersion = LanguageVersion.CSharp12, 11503LanguageVersion = LanguageVersion.CSharp12, 11538LanguageVersion = LanguageVersion.CSharp12, 11571LanguageVersion = LanguageVersion.CSharp12, 11604LanguageVersion = LanguageVersion.CSharp12, 11639LanguageVersion = LanguageVersion.CSharp12, 11674LanguageVersion = LanguageVersion.CSharp12, 11749LanguageVersion = LanguageVersion.CSharp12, 11823LanguageVersion = LanguageVersion.CSharp12, 11897LanguageVersion = LanguageVersion.CSharp7_3, 11936LanguageVersion = LanguageVersion.CSharp7_2, 11976LanguageVersion = LanguageVersion.CSharp12, 12125LanguageVersion = LanguageVersion.CSharp12, 12321LanguageVersion = LanguageVersion.CSharp9, 12366LanguageVersion = LanguageVersion.CSharp10,

231""", new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6)));

174""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5)));

26LanguageVersion = LanguageVersion.CSharp9 55LanguageVersion = LanguageVersion.CSharp8 84LanguageVersion = LanguageVersion.CSharp9,

30private static readonly ParseOptions CSharp72ParseOptions = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp7_2); 31private static readonly ParseOptions CSharp8ParseOptions = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8);

138LanguageVersion = LanguageVersion.CSharp11, 162LanguageVersion = LanguageVersion.CSharp11, 186LanguageVersion = LanguageVersion.CSharp11, 206LanguageVersion = LanguageVersion.CSharp11, 239LanguageVersion = LanguageVersion.CSharp11, 261LanguageVersion = LanguageVersion.CSharp11, 288LanguageVersion = LanguageVersion.CSharp11, 307LanguageVersion = LanguageVersion.CSharp11, 334LanguageVersion = LanguageVersion.CSharp11, 353LanguageVersion = LanguageVersion.CSharp11, 379LanguageVersion = LanguageVersion.CSharp11, 412LanguageVersion = LanguageVersion.CSharp11, 434LanguageVersion = LanguageVersion.CSharp11, 454LanguageVersion = LanguageVersion.CSharp10, 475LanguageVersion = LanguageVersion.CSharp11, 495LanguageVersion = LanguageVersion.CSharp11, 521LanguageVersion = LanguageVersion.CSharp11, 547LanguageVersion = LanguageVersion.CSharp11, 571LanguageVersion = LanguageVersion.CSharp11, 595LanguageVersion = LanguageVersion.CSharp11, 621LanguageVersion = LanguageVersion.CSharp11, 645LanguageVersion = LanguageVersion.CSharp11,

21CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp7_3); 71await TestMissingInRegularAndScriptAsync(text, new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)));

457LanguageVersion = LanguageVersion.CSharp7, 998LanguageVersion = LanguageVersion.CSharp10, 1407LanguageVersion = LanguageVersion.CSharp12, 1441LanguageVersion = LanguageVersion.CSharp12, 1475LanguageVersion = LanguageVersion.CSharp12, 1533LanguageVersion = LanguageVersion.CSharp12, 1591LanguageVersion = LanguageVersion.CSharp12, 1649LanguageVersion = LanguageVersion.CSharp12, 1707LanguageVersion = LanguageVersion.CSharp12, 1727LanguageVersion = LanguageVersion.CSharp12, 1747LanguageVersion = LanguageVersion.CSharp12, 1767LanguageVersion = LanguageVersion.CSharp12, 1790LanguageVersion = LanguageVersion.CSharp12, 1813LanguageVersion = LanguageVersion.CSharp12, 1838LanguageVersion = LanguageVersion.CSharp12, 1879LanguageVersion = LanguageVersion.CSharp12, 1906LanguageVersion = LanguageVersion.CSharp12, 1924LanguageVersion = LanguageVersion.CSharp12, 1965LanguageVersion = LanguageVersion.CSharp12, 2006LanguageVersion = LanguageVersion.CSharp12, 2037LanguageVersion = LanguageVersion.CSharp12, 2057LanguageVersion = LanguageVersion.CSharp12, 2077LanguageVersion = LanguageVersion.CSharp12, 2104LanguageVersion = LanguageVersion.CSharp12, 2148LanguageVersion = LanguageVersion.CSharp12, 2175LanguageVersion = LanguageVersion.CSharp12, 2215LanguageVersion = LanguageVersion.CSharp12, 2263LanguageVersion = LanguageVersion.CSharp12, 2313LanguageVersion = LanguageVersion.CSharp12, 2363LanguageVersion = LanguageVersion.CSharp12, 2423LanguageVersion = LanguageVersion.CSharp12, 2459LanguageVersion = LanguageVersion.CSharp12, 2489LanguageVersion = LanguageVersion.CSharp12, 2519LanguageVersion = LanguageVersion.CSharp12, 2553LanguageVersion = LanguageVersion.CSharp12,

23private static Task TestMissingAsync(string testCode, LanguageVersion version = LanguageVersion.CSharp12) 26private static async Task TestAsync(string testCode, string fixedCode, LanguageVersion version = LanguageVersion.CSharp12) 46""", LanguageVersion.CSharp7_1); 65LanguageVersion.CSharp7_2); 450LanguageVersion.CSharp12);

56LanguageVersion = LanguageVersion.CSharp10 88LanguageVersion = LanguageVersion.CSharp10 122LanguageVersion = LanguageVersion.CSharp10 162LanguageVersion = LanguageVersion.CSharp10 198LanguageVersion = LanguageVersion.CSharp10 226LanguageVersion = LanguageVersion.CSharp10 260LanguageVersion = LanguageVersion.CSharp10 302LanguageVersion = LanguageVersion.CSharp10 341LanguageVersion = LanguageVersion.CSharp10, 350LanguageVersion = LanguageVersion.CSharp10, 379LanguageVersion = LanguageVersion.CSharp10

58LanguageVersion = LanguageVersion.CSharp10, 948LanguageVersion = LanguageVersion.CSharp10,

96initialMarkup, expectedMarkup, options: options, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10));

266LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 345LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 803LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 849LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,

534LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 552LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 578LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 605LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 632LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 770LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 793LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 832LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 875LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8, 922LanguageVersion = Microsoft.CodeAnalysis.CSharp.LanguageVersion.CSharp8,

24private static readonly TestParameters s_nullableFeature = new TestParameters(parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8));

104LanguageVersion = LanguageVersion.CSharp8 138LanguageVersion = LanguageVersion.CSharp8, 172LanguageVersion = LanguageVersion.CSharp9, 211LanguageVersion = LanguageVersion.CSharp9,

5768LanguageVersion = LanguageVersion.CSharp7_1, 5793LanguageVersion = LanguageVersion.CSharp7_1, 5818LanguageVersion = LanguageVersion.CSharp7_1, 5858LanguageVersion = LanguageVersion.CSharp7_1, 5909LanguageVersion = LanguageVersion.CSharp7_1, 5934LanguageVersion = LanguageVersion.CSharp7_1, 5959LanguageVersion = LanguageVersion.CSharp7_1, 5999LanguageVersion = LanguageVersion.CSharp7_1, 6039LanguageVersion = LanguageVersion.CSharp7_1, 6060LanguageVersion = LanguageVersion.CSharp7_1, 6081LanguageVersion = LanguageVersion.CSharp7_1, 6102LanguageVersion = LanguageVersion.CSharp7_1, 6134LanguageVersion = LanguageVersion.CSharp7_1, 6157LanguageVersion = LanguageVersion.CSharp10, 6180LanguageVersion = LanguageVersion.CSharp10, 8229LanguageVersion = LanguageVersion.CSharp9, 8301LanguageVersion = LanguageVersion.CSharp8 8328LanguageVersion = LanguageVersion.CSharp9, 8349LanguageVersion = LanguageVersion.CSharp8 8376LanguageVersion = LanguageVersion.CSharp9, 8397LanguageVersion = LanguageVersion.CSharp8, 8424LanguageVersion = LanguageVersion.CSharp9, 8496LanguageVersion = LanguageVersion.CSharp8 8523LanguageVersion = LanguageVersion.CSharp9, 8544LanguageVersion = LanguageVersion.CSharp8 8571LanguageVersion = LanguageVersion.CSharp9, 8592LanguageVersion = LanguageVersion.CSharp8 8619LanguageVersion = LanguageVersion.CSharp9, 8797LanguageVersion = LanguageVersion.CSharp9, 9622LanguageVersion = LanguageVersion.CSharp9 9643LanguageVersion = LanguageVersion.CSharp9 9673LanguageVersion = LanguageVersion.CSharp9 9694LanguageVersion = LanguageVersion.CSharp9 9715LanguageVersion = LanguageVersion.CSharp9 9800LanguageVersion = LanguageVersion.CSharp9 9823LanguageVersion = LanguageVersion.CSharp9 9846LanguageVersion = LanguageVersion.CSharp9 9875LanguageVersion = LanguageVersion.CSharp9 9905LanguageVersion = LanguageVersion.CSharp9 9923LanguageVersion = LanguageVersion.CSharp9, 9946LanguageVersion = LanguageVersion.CSharp9, 9982LanguageVersion = LanguageVersion.CSharp9, 10010LanguageVersion = LanguageVersion.CSharp9, 10033LanguageVersion = LanguageVersion.CSharp9, 10055LanguageVersion = LanguageVersion.CSharp9, 10890LanguageVersion = LanguageVersion.CSharp9, 10929LanguageVersion = LanguageVersion.CSharp9, 11629LanguageVersion = LanguageVersion.CSharp10, 12067public async Task DoNotRemoveMethodGroupToSpecificDelegateType(LanguageVersion version) 12123LanguageVersion = LanguageVersion.CSharp10, 12159LanguageVersion = LanguageVersion.CSharp10, 12183LanguageVersion = LanguageVersion.CSharp10, 12205LanguageVersion = LanguageVersion.CSharp10, 12226LanguageVersion = LanguageVersion.CSharp10, 12247LanguageVersion = LanguageVersion.CSharp10, 12270LanguageVersion = LanguageVersion.CSharp10, 12292LanguageVersion = LanguageVersion.CSharp10, 12308LanguageVersion = LanguageVersion.CSharp10, 12330LanguageVersion = LanguageVersion.CSharp10, 12354LanguageVersion = LanguageVersion.CSharp10, 12373LanguageVersion = LanguageVersion.CSharp10, 12392LanguageVersion = LanguageVersion.CSharp10, 12416LanguageVersion = LanguageVersion.CSharp10, 12439LanguageVersion = LanguageVersion.CSharp10, 12470LanguageVersion = LanguageVersion.CSharp10, 12520LanguageVersion = LanguageVersion.CSharp10, 12561LanguageVersion = LanguageVersion.CSharp10, 12588LanguageVersion = LanguageVersion.CSharp10, 12635LanguageVersion = LanguageVersion.CSharp10, 12680LanguageVersion = LanguageVersion.CSharp10, 12699LanguageVersion = LanguageVersion.CSharp10, 12730LanguageVersion = LanguageVersion.CSharp10, 12761LanguageVersion = LanguageVersion.CSharp10, 12792LanguageVersion = LanguageVersion.CSharp10, 12823LanguageVersion = LanguageVersion.CSharp10, 12854LanguageVersion = LanguageVersion.CSharp10, 12885LanguageVersion = LanguageVersion.CSharp10, 12904LanguageVersion = LanguageVersion.CSharp10, 12930LanguageVersion = LanguageVersion.CSharp10, 12966LanguageVersion = LanguageVersion.CSharp10, 13001LanguageVersion = LanguageVersion.CSharp10, 13020LanguageVersion = LanguageVersion.CSharp10, 13075LanguageVersion = LanguageVersion.CSharp10, 13578LanguageVersion = LanguageVersion.CSharp12, 13596LanguageVersion = LanguageVersion.CSharp12, 13621LanguageVersion = LanguageVersion.CSharp12, 13648LanguageVersion = LanguageVersion.CSharp12, 13681LanguageVersion = LanguageVersion.CSharp12, 13704LanguageVersion = LanguageVersion.CSharp12, 13734LanguageVersion = LanguageVersion.CSharp12, 13778LanguageVersion = LanguageVersion.CSharp12, 13815LanguageVersion = LanguageVersion.CSharp12, 13893LanguageVersion = LanguageVersion.CSharp12, 13933LanguageVersion = LanguageVersion.CSharp12, 13954LanguageVersion = LanguageVersion.CSharp12, 13975LanguageVersion = LanguageVersion.CSharp12, 13994LanguageVersion = LanguageVersion.CSharp12, 14013LanguageVersion = LanguageVersion.CSharp12, 14032LanguageVersion = LanguageVersion.CSharp12, 14053LanguageVersion = LanguageVersion.CSharp12, 14074LanguageVersion = LanguageVersion.CSharp12, 14095LanguageVersion = LanguageVersion.CSharp12, 14118LanguageVersion = LanguageVersion.CSharp12, 14150LanguageVersion = LanguageVersion.CSharp12, 14182LanguageVersion = LanguageVersion.CSharp12,

54LanguageVersion = LanguageVersion.CSharp9, 76LanguageVersion = LanguageVersion.CSharp8, 109LanguageVersion = LanguageVersion.CSharp9, 136LanguageVersion = LanguageVersion.CSharp9, 169LanguageVersion = LanguageVersion.CSharp9, 202LanguageVersion = LanguageVersion.CSharp9, 235LanguageVersion = LanguageVersion.CSharp9, 256LanguageVersion = LanguageVersion.CSharp9, 289LanguageVersion = LanguageVersion.CSharp9, 328LanguageVersion = LanguageVersion.CSharp9, 352LanguageVersion = LanguageVersion.CSharp9, 377LanguageVersion = LanguageVersion.CSharp9, 430LanguageVersion = LanguageVersion.CSharp9, 461LanguageVersion = LanguageVersion.CSharp9, 493LanguageVersion = LanguageVersion.CSharp9, 528LanguageVersion = LanguageVersion.CSharp9, 563LanguageVersion = LanguageVersion.CSharp9, 601LanguageVersion = LanguageVersion.CSharp9,

480LanguageVersion = LanguageVersion.CSharp10, 633LanguageVersion = LanguageVersion.CSharp10, 1030LanguageVersion = LanguageVersion.CSharp5, 1111LanguageVersion = LanguageVersion.CSharp5, 2105LanguageVersion = LanguageVersion.CSharp10,

28LanguageVersion version = LanguageVersion.CSharp12, 45LanguageVersion version = LanguageVersion.CSharp12, 66""", LanguageVersion.CSharp10); 123LanguageVersion = LanguageVersion.CSharp12,

919LanguageVersion = LanguageVersion.CSharp9, 942LanguageVersion = LanguageVersion.CSharp9, 967LanguageVersion = LanguageVersion.CSharp9, 998LanguageVersion = LanguageVersion.CSharp9, 1026LanguageVersion = LanguageVersion.CSharp9, 1053LanguageVersion = LanguageVersion.CSharp9, 1078LanguageVersion = LanguageVersion.CSharp9,

446LanguageVersion = LanguageVersion.CSharp9, 474LanguageVersion = LanguageVersion.CSharp9, 493LanguageVersion = LanguageVersion.CSharp9, 520LanguageVersion = LanguageVersion.CSharp9, 1176LanguageVersion = LanguageVersion.CSharp9, 3124LanguageVersion = LanguageVersion.CSharp9, 3270LanguageVersion = LanguageVersion.CSharp13, 3368LanguageVersion = LanguageVersion.CSharp13, 3402LanguageVersion = LanguageVersion.CSharp13, 3425LanguageVersion = LanguageVersion.CSharp13, 3449LanguageVersion = LanguageVersion.CSharp13, 3480LanguageVersion = LanguageVersion.CSharp13, 3529LanguageVersion = LanguageVersion.CSharp13, 3558LanguageVersion = LanguageVersion.CSharp13,

54LanguageVersion = LanguageVersion.Preview, 74LanguageVersion = LanguageVersion.Preview,

956LanguageVersion = LanguageVersion.CSharp6, 2723""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 2757""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp9)); 2762[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 2838LanguageVersion = LanguageVersion.CSharp9, 2997""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 3003[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 3066LanguageVersion = LanguageVersion.CSharp9, 3109""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 3115[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 3203LanguageVersion = LanguageVersion.CSharp9, 3246""", optionName: optionName, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 3283""", optionName: optionName, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp9)); 3369LanguageVersion = LanguageVersion.CSharp9, 5461""", optionName, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 7764""", PreferDiscard, new CSharpParseOptions(LanguageVersion.CSharp9)); 8224""", parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8240""", parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8264""", optionName: nameof(PreferDiscard), parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8288""", optionName: nameof(PreferDiscard), parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8308""", optionName: nameof(PreferDiscard), parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8459""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8465[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 8546LanguageVersion = LanguageVersion.CSharp9, 8873""", options: PreferUnusedLocal, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7_3)); 8911""", options: PreferUnusedLocal, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 8933parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 8956parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 9113""", new TestParameters(options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8))); 9119[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 9151""", new TestParameters(options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8))); 9177""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 9212LanguageVersion = LanguageVersion.CSharp9, 9223[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 9251[CombinatorialValues(LanguageVersion.CSharp8, LanguageVersion.CSharp9)] LanguageVersion languageVersion) 9295""", options: PreferDiscard, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp8)); 9334LanguageVersion = LanguageVersion.CSharp9, 9707LanguageVersion = LanguageVersion.CSharp9, 9745LanguageVersion = LanguageVersion.CSharp9, 9786LanguageVersion = LanguageVersion.CSharp9, 9827LanguageVersion = LanguageVersion.CSharp9, 9868LanguageVersion = LanguageVersion.CSharp9, 9909LanguageVersion = LanguageVersion.CSharp9, 9950LanguageVersion = LanguageVersion.CSharp11, 9992LanguageVersion = LanguageVersion.CSharp11, 10034LanguageVersion = LanguageVersion.CSharp11, 10057LanguageVersion = LanguageVersion.CSharp12, 10184LanguageVersion = LanguageVersion.CSharp12,

83parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6));

24private static readonly ImmutableArray<LanguageVersion> s_csharp7_1above = 25[LanguageVersion.CSharp7_1, LanguageVersion.Latest]; 27private static readonly ImmutableArray<LanguageVersion> s_csharp7below = 29LanguageVersion.CSharp7, 30LanguageVersion.CSharp6, 31LanguageVersion.CSharp5, 32LanguageVersion.CSharp4, 33LanguageVersion.CSharp3, 34LanguageVersion.CSharp2, 35LanguageVersion.CSharp1, 38private async Task TestWithLanguageVersionsAsync(string initialMarkup, string expectedMarkup, ImmutableArray<LanguageVersion> versions) 40foreach (var version in versions) 47private async Task TestMissingWithLanguageVersionsAsync(string initialMarkup, ImmutableArray<LanguageVersion> versions) 49foreach (var version in versions) 808""", [LanguageVersion.CSharp7_1, LanguageVersion.CSharp10, LanguageVersion.CSharp11, LanguageVersion.Latest]); 863""", [LanguageVersion.CSharp7_1, LanguageVersion.CSharp10, LanguageVersion.CSharp11, LanguageVersion.Latest]); 953""", [LanguageVersion.CSharp7_1]); 979""", [LanguageVersion.Latest]);

27LanguageVersion = LanguageVersion.CSharp10 38LanguageVersion = LanguageVersion.CSharp10 49LanguageVersion = LanguageVersion.CSharp10 66LanguageVersion = LanguageVersion.CSharp10 83LanguageVersion = LanguageVersion.CSharp10 100LanguageVersion = LanguageVersion.CSharp10 115LanguageVersion = LanguageVersion.CSharp10 136LanguageVersion = LanguageVersion.CSharp10 161LanguageVersion = LanguageVersion.CSharp10 182LanguageVersion = LanguageVersion.CSharp10

33LanguageVersion expected, 77LanguageVersion.CSharp8, 78new CSharpParseOptions(LanguageVersion.CSharp7_2)); 91LanguageVersion.CSharp8, 92new CSharpParseOptions(LanguageVersion.CSharp7)); 108LanguageVersion.CSharp7, 109new CSharpParseOptions(LanguageVersion.CSharp6)); 125LanguageVersion.CSharp6, 126new CSharpParseOptions(LanguageVersion.CSharp5)); 142LanguageVersion.CSharp5, 143new CSharpParseOptions(LanguageVersion.CSharp4)); 153#error version:[|{{LanguageVersion.Latest.MapSpecifiedToEffectiveVersion().ToDisplayString()}}|] 156LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(), 157new CSharpParseOptions(LanguageVersion.CSharp7)); 190LanguageVersion.CSharp7_1, 191new CSharpParseOptions(LanguageVersion.CSharp7)); 201#error version:[|{{LanguageVersion.Latest.MapSpecifiedToEffectiveVersion().ToDisplayString()}}|] 204LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(), 205new CSharpParseOptions(LanguageVersion.CSharp7_1)); 218LanguageVersion.CSharp7_1, 219new CSharpParseOptions(LanguageVersion.CSharp7)); 235LanguageVersion.CSharp7_2, 236new CSharpParseOptions(LanguageVersion.CSharp7_1)); 254LanguageVersion.CSharp7_1, 255new CSharpParseOptions(LanguageVersion.CSharp7)); 266#error version:[|{{LanguageVersion.Latest.MapSpecifiedToEffectiveVersion().ToDisplayString()}}|] 269LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(), 270new CSharpParseOptions(LanguageVersion.CSharp7_2)); 285LanguageVersion.CSharp7_3, 286new CSharpParseOptions(LanguageVersion.CSharp7_2)); 298LanguageVersion.CSharp7_3, 299new CSharpParseOptions(LanguageVersion.CSharp7_2)); 311LanguageVersion.CSharp7_3, 312new CSharpParseOptions(LanguageVersion.CSharp7_2)); 324LanguageVersion.CSharp7_3, 325new CSharpParseOptions(LanguageVersion.CSharp7_2)); 337#error version:[|{{LanguageVersion.Latest.MapSpecifiedToEffectiveVersion().ToDisplayString()}}|] 340LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(), 341new CSharpParseOptions(LanguageVersion.CSharp7_3)); 351#error version:[|{{LanguageVersion.CSharp8.ToDisplayString()}}|] 354LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(), 355new CSharpParseOptions(LanguageVersion.CSharp7_3)); 371expected: LanguageVersion.CSharp8, 372new CSharpParseOptions(LanguageVersion.CSharp7_3)); 401LanguageVersion.CSharp7, 428LanguageVersion.CSharp8, 459LanguageVersion.CSharp8, 485LanguageVersion.CSharp9, 610var defaultVersion = LanguageVersion.Default.MapSpecifiedToEffectiveVersion().ToDisplayString(); 664var defaultEffectiveVersion = LanguageVersion.Default.MapSpecifiedToEffectiveVersion().ToDisplayString(); 702LanguageVersion.CSharp9, 703new CSharpParseOptions(LanguageVersion.CSharp8)); 715LanguageVersion.CSharp7_3, 716new CSharpParseOptions(LanguageVersion.CSharp7)); 748LanguageVersion.CSharp7_3, 749new CSharpParseOptions(LanguageVersion.CSharp7)); 777LanguageVersion.CSharp7_3, 778new CSharpParseOptions(LanguageVersion.CSharp7)); 811LanguageVersion.CSharp7_3, 812new CSharpParseOptions(LanguageVersion.CSharp7)); 848expected: LanguageVersion.CSharp8, 849new CSharpParseOptions(LanguageVersion.CSharp7_3)); 877new CSharpParseOptions(LanguageVersion.CSharp7_3)); 890LanguageVersion.CSharp8, 891new CSharpParseOptions(LanguageVersion.CSharp7_3)); 904LanguageVersion.CSharp8, 905new CSharpParseOptions(LanguageVersion.CSharp7_3)); 918LanguageVersion.CSharp8, 919new CSharpParseOptions(LanguageVersion.CSharp7_3)); 931LanguageVersion.CSharp8, 932new CSharpParseOptions(LanguageVersion.CSharp7_3)); 964LanguageVersion.CSharp8, 965new CSharpParseOptions(LanguageVersion.CSharp7_3)); 993LanguageVersion.CSharp8, 994new CSharpParseOptions(LanguageVersion.CSharp7_3)); 1027LanguageVersion.CSharp8, 1028new CSharpParseOptions(LanguageVersion.CSharp7_3)); 1064expected: LanguageVersion.CSharp9, 1065new CSharpParseOptions(LanguageVersion.CSharp8)); 1090expected: LanguageVersion.CSharp10, 1091new CSharpParseOptions(LanguageVersion.CSharp9)); 1101LanguageVersion.CSharp12, 1102new CSharpParseOptions(LanguageVersion.CSharp11)); 1112LanguageVersion.CSharp12, 1113new CSharpParseOptions(LanguageVersion.CSharp11)); 1123LanguageVersion.CSharp12, 1124new CSharpParseOptions(LanguageVersion.CSharp11)); 1134LanguageVersion.CSharp12, 1135new CSharpParseOptions(LanguageVersion.CSharp11)); 1145LanguageVersion.CSharp12, 1146new CSharpParseOptions(LanguageVersion.CSharp11)); 1156LanguageVersion.CSharp12, 1157new CSharpParseOptions(LanguageVersion.CSharp11)); 1169LanguageVersion.CSharp9, 1170new CSharpParseOptions(LanguageVersion.CSharp8)); 1179LanguageVersion.CSharp10, 1180new CSharpParseOptions(LanguageVersion.CSharp9)); 1198expected: LanguageVersion.CSharp10, 1199new CSharpParseOptions(LanguageVersion.CSharp9)); 1214expected: LanguageVersion.CSharp9, 1215new CSharpParseOptions(LanguageVersion.CSharp8)); 1232expected: LanguageVersion.CSharp11, 1233new CSharpParseOptions(LanguageVersion.CSharp8)); 1246expected: LanguageVersion.CSharp11, 1247new CSharpParseOptions(LanguageVersion.CSharp10)); 1260expected: LanguageVersion.CSharp11, 1261new CSharpParseOptions(LanguageVersion.CSharp10)); 1274expected: LanguageVersion.CSharp11, 1275new CSharpParseOptions(LanguageVersion.CSharp10)); 1291expected: LanguageVersion.CSharp12, 1292new CSharpParseOptions(LanguageVersion.CSharp11));

24private readonly ParseOptions CSharp12 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12); 448CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5)); 468""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5))); 514""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp5)));

17private static readonly ParseOptions CSharp13 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp13);

181LanguageVersion = LanguageVersion.CSharp9, 251LanguageVersion = LanguageVersion.CSharp9, 448LanguageVersion = LanguageVersion.CSharp9,

34LanguageVersion = LanguageVersion.CSharp11, 55LanguageVersion = LanguageVersion.CSharp12, 76LanguageVersion = LanguageVersion.CSharp12, 97LanguageVersion = LanguageVersion.CSharp12, 122LanguageVersion = LanguageVersion.CSharp12, 147LanguageVersion = LanguageVersion.CSharp12, 168LanguageVersion = LanguageVersion.CSharp12, 189LanguageVersion = LanguageVersion.CSharp12, 204LanguageVersion = LanguageVersion.CSharp12, 229LanguageVersion = LanguageVersion.CSharp12, 250LanguageVersion = LanguageVersion.CSharp12, 277LanguageVersion = LanguageVersion.CSharp12, 298LanguageVersion = LanguageVersion.CSharp12, 319LanguageVersion = LanguageVersion.CSharp12, 340LanguageVersion = LanguageVersion.CSharp12, 355LanguageVersion = LanguageVersion.CSharp12, 370LanguageVersion = LanguageVersion.CSharp12, 385LanguageVersion = LanguageVersion.CSharp12, 406LanguageVersion = LanguageVersion.CSharp12, 421LanguageVersion = LanguageVersion.CSharp12, 446LanguageVersion = LanguageVersion.CSharp12, 473LanguageVersion = LanguageVersion.CSharp12, 488LanguageVersion = LanguageVersion.CSharp12, 509LanguageVersion = LanguageVersion.CSharp12, 528LanguageVersion = LanguageVersion.CSharp12, 547LanguageVersion = LanguageVersion.CSharp12, 566LanguageVersion = LanguageVersion.CSharp12, 585LanguageVersion = LanguageVersion.CSharp12, 605LanguageVersion = LanguageVersion.CSharp12, 627LanguageVersion = LanguageVersion.CSharp12, 648LanguageVersion = LanguageVersion.CSharp12, 675LanguageVersion = LanguageVersion.CSharp12, 693LanguageVersion = LanguageVersion.CSharp12, 711LanguageVersion = LanguageVersion.CSharp12, 729LanguageVersion = LanguageVersion.CSharp12, 749LanguageVersion = LanguageVersion.CSharp12, 776LanguageVersion = LanguageVersion.CSharp12, 803LanguageVersion = LanguageVersion.CSharp12, 830LanguageVersion = LanguageVersion.CSharp12, 848LanguageVersion = LanguageVersion.CSharp12, 875LanguageVersion = LanguageVersion.CSharp12, 902LanguageVersion = LanguageVersion.CSharp12, 929LanguageVersion = LanguageVersion.CSharp12, 947LanguageVersion = LanguageVersion.CSharp12, 965LanguageVersion = LanguageVersion.CSharp12, 992LanguageVersion = LanguageVersion.CSharp12, 1019LanguageVersion = LanguageVersion.CSharp12, 1037LanguageVersion = LanguageVersion.CSharp12, 1074LanguageVersion = LanguageVersion.CSharp12, 1106LanguageVersion = LanguageVersion.CSharp12, 1123LanguageVersion = LanguageVersion.CSharp12, 1145LanguageVersion = LanguageVersion.CSharp12, 1176LanguageVersion = LanguageVersion.CSharp12, 1196LanguageVersion = LanguageVersion.CSharp12, 1216LanguageVersion = LanguageVersion.CSharp12, 1236LanguageVersion = LanguageVersion.CSharp12, 1263LanguageVersion = LanguageVersion.CSharp12, 1290LanguageVersion = LanguageVersion.CSharp12, 1327LanguageVersion = LanguageVersion.CSharp12, 1354LanguageVersion = LanguageVersion.CSharp12, 1377LanguageVersion = LanguageVersion.CSharp12, 1398LanguageVersion = LanguageVersion.CSharp12, 1421LanguageVersion = LanguageVersion.CSharp12, 1446LanguageVersion = LanguageVersion.CSharp12, 1473LanguageVersion = LanguageVersion.CSharp12, 1496LanguageVersion = LanguageVersion.CSharp12, 1521LanguageVersion = LanguageVersion.CSharp12, 1548LanguageVersion = LanguageVersion.CSharp12, 1577LanguageVersion = LanguageVersion.CSharp12, 1598LanguageVersion = LanguageVersion.CSharp12, 1621LanguageVersion = LanguageVersion.CSharp12, 1646LanguageVersion = LanguageVersion.CSharp12, 1673LanguageVersion = LanguageVersion.CSharp12, 1701LanguageVersion = LanguageVersion.CSharp12, 1728LanguageVersion = LanguageVersion.CSharp12, 1756LanguageVersion = LanguageVersion.CSharp12, 1783LanguageVersion = LanguageVersion.CSharp12, 1808LanguageVersion = LanguageVersion.CSharp12, 1838LanguageVersion = LanguageVersion.CSharp12, 1859LanguageVersion = LanguageVersion.CSharp12, 1882LanguageVersion = LanguageVersion.CSharp12, 1907LanguageVersion = LanguageVersion.CSharp12, 1934LanguageVersion = LanguageVersion.CSharp12, 1962LanguageVersion = LanguageVersion.CSharp12, 1989LanguageVersion = LanguageVersion.CSharp12, 2017LanguageVersion = LanguageVersion.CSharp12, 2044LanguageVersion = LanguageVersion.CSharp12, 2069LanguageVersion = LanguageVersion.CSharp12, 2099LanguageVersion = LanguageVersion.CSharp12, 2150LanguageVersion = LanguageVersion.CSharp12, 2187LanguageVersion = LanguageVersion.CSharp12, 2228LanguageVersion = LanguageVersion.CSharp12, 2259LanguageVersion = LanguageVersion.CSharp12, 2279LanguageVersion = LanguageVersion.CSharp12, 2300LanguageVersion = LanguageVersion.CSharp12, 2323LanguageVersion = LanguageVersion.CSharp12, 2344LanguageVersion = LanguageVersion.CSharp12, 2365LanguageVersion = LanguageVersion.CSharp12, 2388LanguageVersion = LanguageVersion.CSharp12, 2411LanguageVersion = LanguageVersion.CSharp12, 2432LanguageVersion = LanguageVersion.CSharp12, 2453LanguageVersion = LanguageVersion.CSharp12, 2475LanguageVersion = LanguageVersion.CSharp12, 2507LanguageVersion = LanguageVersion.CSharp12, 2541LanguageVersion = LanguageVersion.CSharp12, 2574LanguageVersion = LanguageVersion.CSharp12, 2609LanguageVersion = LanguageVersion.CSharp12, 2631LanguageVersion = LanguageVersion.CSharp12, 2654LanguageVersion = LanguageVersion.CSharp12, 2679LanguageVersion = LanguageVersion.CSharp12, 2712LanguageVersion = LanguageVersion.CSharp12, 2745LanguageVersion = LanguageVersion.CSharp12, 2785LanguageVersion = LanguageVersion.CSharp12, 2830LanguageVersion = LanguageVersion.CSharp12, 2845LanguageVersion = LanguageVersion.CSharp12, 2874LanguageVersion = LanguageVersion.CSharp12, 2905LanguageVersion = LanguageVersion.CSharp12, 2950LanguageVersion = LanguageVersion.CSharp12, 2973LanguageVersion = LanguageVersion.CSharp12, 3003LanguageVersion = LanguageVersion.CSharp12, 3033LanguageVersion = LanguageVersion.CSharp12, 3063LanguageVersion = LanguageVersion.CSharp12, 3084LanguageVersion = LanguageVersion.CSharp12, 3114LanguageVersion = LanguageVersion.CSharp12, 3135LanguageVersion = LanguageVersion.CSharp12, 3171LanguageVersion = LanguageVersion.CSharp12, 3211LanguageVersion = LanguageVersion.CSharp12, 3247LanguageVersion = LanguageVersion.CSharp12, 3285LanguageVersion = LanguageVersion.CSharp12, 3329LanguageVersion = LanguageVersion.CSharp12, 3367LanguageVersion = LanguageVersion.CSharp12, 3409LanguageVersion = LanguageVersion.CSharp12, 3451LanguageVersion = LanguageVersion.CSharp12, 3489LanguageVersion = LanguageVersion.CSharp12, 3527LanguageVersion = LanguageVersion.CSharp12, 3569LanguageVersion = LanguageVersion.CSharp12, 3611LanguageVersion = LanguageVersion.CSharp12, 3649LanguageVersion = LanguageVersion.CSharp12, 3687LanguageVersion = LanguageVersion.CSharp12, 3725LanguageVersion = LanguageVersion.CSharp12, 3749LanguageVersion = LanguageVersion.CSharp12, 3772LanguageVersion = LanguageVersion.CSharp12, 3793LanguageVersion = LanguageVersion.CSharp12, 3818LanguageVersion = LanguageVersion.CSharp12, 3841LanguageVersion = LanguageVersion.CSharp12, 3866LanguageVersion = LanguageVersion.CSharp12, 3889LanguageVersion = LanguageVersion.CSharp12, 3913LanguageVersion = LanguageVersion.CSharp12, 3937LanguageVersion = LanguageVersion.CSharp12, 3962LanguageVersion = LanguageVersion.CSharp12, 3987LanguageVersion = LanguageVersion.CSharp12, 4014LanguageVersion = LanguageVersion.CSharp12, 4041LanguageVersion = LanguageVersion.CSharp12, 4068LanguageVersion = LanguageVersion.CSharp12, 4112LanguageVersion = LanguageVersion.CSharp12, 4154LanguageVersion = LanguageVersion.CSharp12, 4198LanguageVersion = LanguageVersion.CSharp12, 4235LanguageVersion = LanguageVersion.CSharp12, 4272LanguageVersion = LanguageVersion.CSharp12, 4294LanguageVersion = LanguageVersion.CSharp12, 4331LanguageVersion = LanguageVersion.CSharp12, 4354LanguageVersion = LanguageVersion.CSharp12, 4377LanguageVersion = LanguageVersion.CSharp12, 4408LanguageVersion = LanguageVersion.CSharp12, 4434LanguageVersion = LanguageVersion.CSharp12, 4456LanguageVersion = LanguageVersion.CSharp12, 4496LanguageVersion = LanguageVersion.CSharp12, 4534LanguageVersion = LanguageVersion.CSharp12, 4571LanguageVersion = LanguageVersion.CSharp12, 4594LanguageVersion = LanguageVersion.CSharp12, 4640LanguageVersion = LanguageVersion.CSharp12, 4674LanguageVersion = LanguageVersion.CSharp12, 4730LanguageVersion = LanguageVersion.CSharp12, 4802LanguageVersion = LanguageVersion.CSharp12, 4841LanguageVersion = LanguageVersion.CSharp12, 4865LanguageVersion = LanguageVersion.CSharp12, 4923LanguageVersion = LanguageVersion.CSharp12, 4947LanguageVersion = LanguageVersion.CSharp12, 4990LanguageVersion = LanguageVersion.CSharp12, 5014LanguageVersion = LanguageVersion.CSharp12, 5057LanguageVersion = LanguageVersion.CSharp12, 5081LanguageVersion = LanguageVersion.CSharp12, 5139LanguageVersion = LanguageVersion.CSharp12, 5193LanguageVersion = LanguageVersion.CSharp12, 5216LanguageVersion = LanguageVersion.CSharp12, 5239LanguageVersion = LanguageVersion.CSharp12, 5262LanguageVersion = LanguageVersion.CSharp12, 5285LanguageVersion = LanguageVersion.CSharp12, 5308LanguageVersion = LanguageVersion.CSharp12, 5331LanguageVersion = LanguageVersion.CSharp12, 5354LanguageVersion = LanguageVersion.CSharp12, 5381LanguageVersion = LanguageVersion.CSharp12, 5408LanguageVersion = LanguageVersion.CSharp12, 5432LanguageVersion = LanguageVersion.CSharp12, 5455LanguageVersion = LanguageVersion.CSharp12, 5496LanguageVersion = LanguageVersion.CSharp12, 5519LanguageVersion = LanguageVersion.CSharp12, 5542LanguageVersion = LanguageVersion.CSharp12, 5565LanguageVersion = LanguageVersion.CSharp12, 5587LanguageVersion = LanguageVersion.CSharp12, 5611LanguageVersion = LanguageVersion.CSharp12, 5634LanguageVersion = LanguageVersion.CSharp12, 5675LanguageVersion = LanguageVersion.CSharp12, 5698LanguageVersion = LanguageVersion.CSharp12, 5721LanguageVersion = LanguageVersion.CSharp12, 5758LanguageVersion = LanguageVersion.CSharp12, 5799LanguageVersion = LanguageVersion.CSharp12, 5841LanguageVersion = LanguageVersion.CSharp13, 5883LanguageVersion = LanguageVersion.CSharp12,

84LanguageVersion = LanguageVersion.CSharp11, 107LanguageVersion = LanguageVersion.CSharp12, 141LanguageVersion = LanguageVersion.CSharp12, 175LanguageVersion = LanguageVersion.CSharp12, 199LanguageVersion = LanguageVersion.CSharp12, 237LanguageVersion = LanguageVersion.CSharp12, 275LanguageVersion = LanguageVersion.CSharp12, 313LanguageVersion = LanguageVersion.CSharp12, 351LanguageVersion = LanguageVersion.CSharp12, 377LanguageVersion = LanguageVersion.CSharp12, 401LanguageVersion = LanguageVersion.CSharp12, 442LanguageVersion = LanguageVersion.CSharp12, 485LanguageVersion = LanguageVersion.CSharp12, 515LanguageVersion = LanguageVersion.CSharp12, 545LanguageVersion = LanguageVersion.CSharp12, 592LanguageVersion = LanguageVersion.CSharp12, 639LanguageVersion = LanguageVersion.CSharp12, 686LanguageVersion = LanguageVersion.CSharp12, 726LanguageVersion = LanguageVersion.CSharp12, 768LanguageVersion = LanguageVersion.CSharp12, 810LanguageVersion = LanguageVersion.CSharp12, 856LanguageVersion = LanguageVersion.CSharp12, 894LanguageVersion = LanguageVersion.CSharp12, 932LanguageVersion = LanguageVersion.CSharp12, 970LanguageVersion = LanguageVersion.CSharp12, 995LanguageVersion = LanguageVersion.CSharp12, 1034LanguageVersion = LanguageVersion.CSharp12, 1072LanguageVersion = LanguageVersion.CSharp12, 1110LanguageVersion = LanguageVersion.CSharp12, 1148LanguageVersion = LanguageVersion.CSharp12, 1186LanguageVersion = LanguageVersion.CSharp12, 1212LanguageVersion = LanguageVersion.CSharp12, 1238LanguageVersion = LanguageVersion.CSharp12, 1278LanguageVersion = LanguageVersion.CSharp12, 1317LanguageVersion = LanguageVersion.CSharp12, 1360LanguageVersion = LanguageVersion.CSharp12, 1383LanguageVersion = LanguageVersion.CSharp12, 1405LanguageVersion = LanguageVersion.CSharp12, 1442LanguageVersion = LanguageVersion.CSharp12, 1482LanguageVersion = LanguageVersion.CSharp12, 1521LanguageVersion = LanguageVersion.CSharp12, 1559LanguageVersion = LanguageVersion.CSharp12, 1584LanguageVersion = LanguageVersion.CSharp12, 1625LanguageVersion = LanguageVersion.CSharp12,

77LanguageVersion = LanguageVersion.CSharp11, 99LanguageVersion = LanguageVersion.CSharp12, 121LanguageVersion = LanguageVersion.CSharp12, 149LanguageVersion = LanguageVersion.CSharp12, 170LanguageVersion = LanguageVersion.CSharp12, 192LanguageVersion = LanguageVersion.CSharp12, 214LanguageVersion = LanguageVersion.CSharp12, 236LanguageVersion = LanguageVersion.CSharp12, 258LanguageVersion = LanguageVersion.CSharp12, 280LanguageVersion = LanguageVersion.CSharp12, 296LanguageVersion = LanguageVersion.CSharp12, 318LanguageVersion = LanguageVersion.CSharp12, 340LanguageVersion = LanguageVersion.CSharp12, 362LanguageVersion = LanguageVersion.CSharp12, 378LanguageVersion = LanguageVersion.CSharp12, 394LanguageVersion = LanguageVersion.CSharp12, 416LanguageVersion = LanguageVersion.CSharp12, 438LanguageVersion = LanguageVersion.CSharp12, 460LanguageVersion = LanguageVersion.CSharp12, 476LanguageVersion = LanguageVersion.CSharp12, 508LanguageVersion = LanguageVersion.CSharp12, 530LanguageVersion = LanguageVersion.CSharp12, 552LanguageVersion = LanguageVersion.CSharp12, 574LanguageVersion = LanguageVersion.CSharp12, 596LanguageVersion = LanguageVersion.CSharp12, 614LanguageVersion = LanguageVersion.CSharp12, 632LanguageVersion = LanguageVersion.CSharp12, 658LanguageVersion = LanguageVersion.CSharp12, 684LanguageVersion = LanguageVersion.CSharp12, 710LanguageVersion = LanguageVersion.CSharp12, 736LanguageVersion = LanguageVersion.CSharp12, 762LanguageVersion = LanguageVersion.CSharp12, 788LanguageVersion = LanguageVersion.CSharp12, 807LanguageVersion = LanguageVersion.CSharp12, 829LanguageVersion = LanguageVersion.CSharp12, 853LanguageVersion = LanguageVersion.CSharp12, 884LanguageVersion = LanguageVersion.CSharp12, 906LanguageVersion = LanguageVersion.CSharp12, 940LanguageVersion = LanguageVersion.CSharp12, 962LanguageVersion = LanguageVersion.CSharp12, 996LanguageVersion = LanguageVersion.CSharp12, 1012LanguageVersion = LanguageVersion.CSharp12, 1040LanguageVersion = LanguageVersion.CSharp12, 1078LanguageVersion = LanguageVersion.CSharp12, 1115LanguageVersion = LanguageVersion.CSharp12, 1156LanguageVersion = LanguageVersion.CSharp12, 1181LanguageVersion = LanguageVersion.CSharp12, 1206LanguageVersion = LanguageVersion.CSharp12, 1240LanguageVersion = LanguageVersion.CSharp12, 1266LanguageVersion = LanguageVersion.CSharp12, 1284LanguageVersion = LanguageVersion.CSharp12, 1324LanguageVersion = LanguageVersion.CSharp12,

50LanguageVersion = LanguageVersion.CSharp12, 81LanguageVersion = LanguageVersion.CSharp12, 112LanguageVersion = LanguageVersion.CSharp12, 141LanguageVersion = LanguageVersion.CSharp12, 160LanguageVersion = LanguageVersion.CSharp12, 197LanguageVersion = LanguageVersion.CSharp12, 218LanguageVersion = LanguageVersion.CSharp12, 253LanguageVersion = LanguageVersion.CSharp12, 286LanguageVersion = LanguageVersion.CSharp12, 319LanguageVersion = LanguageVersion.CSharp12, 352LanguageVersion = LanguageVersion.CSharp12, 385LanguageVersion = LanguageVersion.CSharp12, 416LanguageVersion = LanguageVersion.CSharp12, 437LanguageVersion = LanguageVersion.CSharp12, 470LanguageVersion = LanguageVersion.CSharp12, 495LanguageVersion = LanguageVersion.CSharp12, 552LanguageVersion = LanguageVersion.CSharp12, 620LanguageVersion = LanguageVersion.CSharp12, 688LanguageVersion = LanguageVersion.CSharp12, 720LanguageVersion = LanguageVersion.CSharp12, 741LanguageVersion = LanguageVersion.CSharp12, 775LanguageVersion = LanguageVersion.CSharp12, 797LanguageVersion = LanguageVersion.CSharp12, 831LanguageVersion = LanguageVersion.CSharp12, 864LanguageVersion = LanguageVersion.CSharp12, 899LanguageVersion = LanguageVersion.CSharp12, 950LanguageVersion = LanguageVersion.CSharp12, 988LanguageVersion = LanguageVersion.CSharp12, 1040LanguageVersion = LanguageVersion.CSharp12, 1093LanguageVersion = LanguageVersion.CSharp12, 1148LanguageVersion = LanguageVersion.CSharp12, 1186LanguageVersion = LanguageVersion.CSharp12, 1243LanguageVersion = LanguageVersion.CSharp12, 1267LanguageVersion = LanguageVersion.CSharp12, 1287LanguageVersion = LanguageVersion.CSharp12, 1314LanguageVersion = LanguageVersion.CSharp12, 1351LanguageVersion = LanguageVersion.CSharp12, 1381LanguageVersion = LanguageVersion.CSharp12, 1411LanguageVersion = LanguageVersion.CSharp12, 1441LanguageVersion = LanguageVersion.CSharp12, 1471LanguageVersion = LanguageVersion.CSharp12, 1507LanguageVersion = LanguageVersion.CSharp12, 1547LanguageVersion = LanguageVersion.CSharp12, 1585LanguageVersion = LanguageVersion.CSharp12, 1608LanguageVersion = LanguageVersion.CSharp12, 1631LanguageVersion = LanguageVersion.CSharp12, 1668LanguageVersion = LanguageVersion.CSharp12, 1693LanguageVersion = LanguageVersion.CSharp12, 1715LanguageVersion = LanguageVersion.CSharp12,

39LanguageVersion = LanguageVersion.CSharp11, 73LanguageVersion = LanguageVersion.CSharp12, 107LanguageVersion = LanguageVersion.CSharp12, 141LanguageVersion = LanguageVersion.CSharp12, 164LanguageVersion = LanguageVersion.CSharp12, 198LanguageVersion = LanguageVersion.CSharp12, 232LanguageVersion = LanguageVersion.CSharp12, 254LanguageVersion = LanguageVersion.CSharp12, 290LanguageVersion = LanguageVersion.CSharp12, 326LanguageVersion = LanguageVersion.CSharp12, 362LanguageVersion = LanguageVersion.CSharp12, 398LanguageVersion = LanguageVersion.CSharp12, 434LanguageVersion = LanguageVersion.CSharp12, 470LanguageVersion = LanguageVersion.CSharp12, 506LanguageVersion = LanguageVersion.CSharp12, 542LanguageVersion = LanguageVersion.CSharp12, 578LanguageVersion = LanguageVersion.CSharp12, 614LanguageVersion = LanguageVersion.CSharp12, 650LanguageVersion = LanguageVersion.CSharp12, 686LanguageVersion = LanguageVersion.CSharp12, 709LanguageVersion = LanguageVersion.CSharp12, 732LanguageVersion = LanguageVersion.CSharp12, 755LanguageVersion = LanguageVersion.CSharp12, 795LanguageVersion = LanguageVersion.CSharp12, 831LanguageVersion = LanguageVersion.CSharp12, 854LanguageVersion = LanguageVersion.CSharp12, 898LanguageVersion = LanguageVersion.CSharp12, 934LanguageVersion = LanguageVersion.CSharp12, 957LanguageVersion = LanguageVersion.CSharp12, 993LanguageVersion = LanguageVersion.CSharp12, 1029LanguageVersion = LanguageVersion.CSharp12, 1071LanguageVersion = LanguageVersion.CSharp12, 1118LanguageVersion = LanguageVersion.CSharp12, 1160LanguageVersion = LanguageVersion.CSharp12, 1207LanguageVersion = LanguageVersion.CSharp12, 1233LanguageVersion = LanguageVersion.CSharp12, 1259LanguageVersion = LanguageVersion.CSharp12, 1285LanguageVersion = LanguageVersion.CSharp12, 1310LanguageVersion = LanguageVersion.CSharp12, 1335LanguageVersion = LanguageVersion.CSharp12, 1371LanguageVersion = LanguageVersion.CSharp12, 1407LanguageVersion = LanguageVersion.CSharp12, 1443LanguageVersion = LanguageVersion.CSharp12, 1481LanguageVersion = LanguageVersion.CSharp12, 1519LanguageVersion = LanguageVersion.CSharp12, 1543LanguageVersion = LanguageVersion.CSharp12, 1570LanguageVersion = LanguageVersion.CSharp12, 1608LanguageVersion = LanguageVersion.CSharp12, 1646LanguageVersion = LanguageVersion.CSharp12, 1684LanguageVersion = LanguageVersion.CSharp12, 1728LanguageVersion = LanguageVersion.CSharp12, 1772LanguageVersion = LanguageVersion.CSharp12, 1810LanguageVersion = LanguageVersion.CSharp12, 1848LanguageVersion = LanguageVersion.CSharp12, 1894LanguageVersion = LanguageVersion.CSharp12, 1939LanguageVersion = LanguageVersion.CSharp12, 1973LanguageVersion = LanguageVersion.CSharp12, 1995LanguageVersion = LanguageVersion.CSharp12, 2031LanguageVersion = LanguageVersion.CSharp12, 2079LanguageVersion = LanguageVersion.CSharp12, 2114LanguageVersion = LanguageVersion.CSharp12, 2149LanguageVersion = LanguageVersion.CSharp12, 2183LanguageVersion = LanguageVersion.CSharp12, 2206LanguageVersion = LanguageVersion.CSharp12, 2242LanguageVersion = LanguageVersion.CSharp12, 2265LanguageVersion = LanguageVersion.CSharp12, 2301LanguageVersion = LanguageVersion.CSharp12, 2324LanguageVersion = LanguageVersion.CSharp12, 2360LanguageVersion = LanguageVersion.CSharp12, 2398LanguageVersion = LanguageVersion.CSharp12, 2432LanguageVersion = LanguageVersion.CSharp12, 2466LanguageVersion = LanguageVersion.CSharp12, 2501LanguageVersion = LanguageVersion.CSharp12, 2536LanguageVersion = LanguageVersion.CSharp12, 2573LanguageVersion = LanguageVersion.CSharp12, 2610LanguageVersion = LanguageVersion.CSharp12, 2650LanguageVersion = LanguageVersion.CSharp12, 2674LanguageVersion = LanguageVersion.CSharp12, 2698LanguageVersion = LanguageVersion.CSharp12, 2726LanguageVersion = LanguageVersion.CSharp12, 2777LanguageVersion = LanguageVersion.CSharp12, 2810LanguageVersion = LanguageVersion.CSharp12, 2832LanguageVersion = LanguageVersion.CSharp12, 2872LanguageVersion = LanguageVersion.CSharp12, 2908LanguageVersion = LanguageVersion.CSharp12, 2935LanguageVersion = LanguageVersion.CSharp12, 2978LanguageVersion = LanguageVersion.CSharp12, 3012LanguageVersion = LanguageVersion.CSharp12, 3046LanguageVersion = LanguageVersion.CSharp12, 3080LanguageVersion = LanguageVersion.CSharp12, 3114LanguageVersion = LanguageVersion.CSharp12, 3150LanguageVersion = LanguageVersion.CSharp12,

55LanguageVersion = LanguageVersion.CSharp12, 93LanguageVersion = LanguageVersion.CSharp12, 116LanguageVersion = LanguageVersion.CSharp12, 136LanguageVersion = LanguageVersion.CSharp12,

37LanguageVersion = LanguageVersion.CSharp11, 58LanguageVersion = LanguageVersion.CSharp11, 79LanguageVersion = LanguageVersion.CSharp12, 100LanguageVersion = LanguageVersion.CSharp12, 132LanguageVersion = LanguageVersion.CSharp12, 164LanguageVersion = LanguageVersion.CSharp12, 196LanguageVersion = LanguageVersion.CSharp12, 228LanguageVersion = LanguageVersion.CSharp12, 249LanguageVersion = LanguageVersion.CSharp12, 270LanguageVersion = LanguageVersion.CSharp12, 291LanguageVersion = LanguageVersion.CSharp12, 312LanguageVersion = LanguageVersion.CSharp12, 346LanguageVersion = LanguageVersion.CSharp12, 367LanguageVersion = LanguageVersion.CSharp12, 388LanguageVersion = LanguageVersion.CSharp12, 409LanguageVersion = LanguageVersion.CSharp12, 430LanguageVersion = LanguageVersion.CSharp12, 466LanguageVersion = LanguageVersion.CSharp12, 502LanguageVersion = LanguageVersion.CSharp12, 534LanguageVersion = LanguageVersion.CSharp12, 566LanguageVersion = LanguageVersion.CSharp12, 588LanguageVersion = LanguageVersion.CSharp12, 620LanguageVersion = LanguageVersion.CSharp12, 641LanguageVersion = LanguageVersion.CSharp12, 673LanguageVersion = LanguageVersion.CSharp12, 694LanguageVersion = LanguageVersion.CSharp12, 716LanguageVersion = LanguageVersion.CSharp12, 740LanguageVersion = LanguageVersion.CSharp12, 762LanguageVersion = LanguageVersion.CSharp12, 784LanguageVersion = LanguageVersion.CSharp12, 808LanguageVersion = LanguageVersion.CSharp12, 832LanguageVersion = LanguageVersion.CSharp12, 854LanguageVersion = LanguageVersion.CSharp12, 876LanguageVersion = LanguageVersion.CSharp12, 899LanguageVersion = LanguageVersion.CSharp12, 932LanguageVersion = LanguageVersion.CSharp12, 967LanguageVersion = LanguageVersion.CSharp12, 1001LanguageVersion = LanguageVersion.CSharp12, 1037LanguageVersion = LanguageVersion.CSharp12, 1060LanguageVersion = LanguageVersion.CSharp12, 1084LanguageVersion = LanguageVersion.CSharp12, 1110LanguageVersion = LanguageVersion.CSharp12, 1150LanguageVersion = LanguageVersion.CSharp12, 1190LanguageVersion = LanguageVersion.CSharp12, 1228LanguageVersion = LanguageVersion.CSharp12, 1268LanguageVersion = LanguageVersion.CSharp12, 1304LanguageVersion = LanguageVersion.CSharp12, 1342LanguageVersion = LanguageVersion.CSharp12, 1380LanguageVersion = LanguageVersion.CSharp12, 1420LanguageVersion = LanguageVersion.CSharp12, 1456LanguageVersion = LanguageVersion.CSharp12, 1494LanguageVersion = LanguageVersion.CSharp12, 1532LanguageVersion = LanguageVersion.CSharp12, 1574LanguageVersion = LanguageVersion.CSharp12, 1594LanguageVersion = LanguageVersion.CSharp12, 1630LanguageVersion = LanguageVersion.CSharp12,

27LanguageVersion languageVersion = LanguageVersion.CSharp11) 41private static async Task TestMissingInRegularAndScriptAsync(string testCode, LanguageVersion? languageVersion = null) 344""", LanguageVersion.CSharp5); 604""", LanguageVersion.CSharp2); 1683""", OutputKind.ConsoleApplication, LanguageVersion.CSharp12); 1715""", languageVersion: LanguageVersion.CSharp12); 1749LanguageVersion = LanguageVersion.CSharp12, 1786LanguageVersion = LanguageVersion.CSharp12, 1827LanguageVersion = LanguageVersion.CSharp12, 1864LanguageVersion = LanguageVersion.CSharp13,

31LanguageVersion = LanguageVersion.CSharp12, 375LanguageVersion = LanguageVersion.CSharp12, 798LanguageVersion = LanguageVersion.CSharp12, 823LanguageVersion = LanguageVersion.CSharp12, 1941LanguageVersion = LanguageVersion.CSharp12, 4385LanguageVersion = LanguageVersion.CSharp12, 5346LanguageVersion = LanguageVersion.CSharp12, 5386LanguageVersion = LanguageVersion.CSharp12, 5423LanguageVersion = LanguageVersion.CSharp12, 5457LanguageVersion = LanguageVersion.CSharp12, 5491LanguageVersion = LanguageVersion.CSharp12, 5525LanguageVersion = LanguageVersion.CSharp12, 5569LanguageVersion = LanguageVersion.CSharp12, 5603LanguageVersion = LanguageVersion.CSharp12, 5637LanguageVersion = LanguageVersion.CSharp12, 5681LanguageVersion = LanguageVersion.CSharp12, 5705LanguageVersion = LanguageVersion.CSharp12, 5743LanguageVersion = LanguageVersion.CSharp12, 5777LanguageVersion = LanguageVersion.CSharp12, 5811LanguageVersion = LanguageVersion.CSharp12, 5865LanguageVersion = LanguageVersion.CSharp12, 5887LanguageVersion = LanguageVersion.CSharp13, 5908LanguageVersion = LanguageVersion.CSharp13, 5940LanguageVersion = LanguageVersion.CSharp13, 5963LanguageVersion = LanguageVersion.CSharp12, 5984LanguageVersion = LanguageVersion.CSharp12,

266LanguageVersion = LanguageVersion.CSharp8 286LanguageVersion = LanguageVersion.CSharp7_3 307LanguageVersion = LanguageVersion.CSharp8 959LanguageVersion = LanguageVersion.CSharp9, 1605LanguageVersion = LanguageVersion.Preview,

31private static async Task TestMissingAsync(string testCode, LanguageVersion languageVersion = LanguageVersion.CSharp8) 71""", LanguageVersion.CSharp7_3); 297""", LanguageVersion.CSharp7_3); 957""", LanguageVersion.CSharp12); 977""", LanguageVersion.CSharp12); 1000""", LanguageVersion.CSharp12); 1041LanguageVersion = LanguageVersion.Preview,

28LanguageVersion languageVersion = LanguageVersion.CSharp8, 44LanguageVersion languageVersion = LanguageVersion.CSharp8, 199""", LanguageVersion.CSharp6); 591""", LanguageVersion.Latest); 989""", LanguageVersion.CSharp8, PreferImplicitTypeAlways); 1021""", LanguageVersion.CSharp9, options: PreferImplicitTypeAlways); 1181""", LanguageVersion.CSharp8, PreferImplicitTypeAlways); 1213""", LanguageVersion.CSharp9, options: PreferImplicitTypeAlways); 1905""", LanguageVersion.CSharp9); 1951""", LanguageVersion.CSharp9, equivalenceKey: nameof(AnalyzersResources.Simplify_check)); 2143LanguageVersion = LanguageVersion.CSharp9, 2188""", LanguageVersion.CSharp9); 2224""", LanguageVersion.CSharp13); 2302""", LanguageVersion.CSharp9);

22private static readonly ParseOptions CSharp8 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8); 23private static readonly ParseOptions CSharp9 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9); 163""", parameters: new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6))); 977[InlineData(LanguageVersion.CSharp8, "(string)null")] 978[InlineData(LanguageVersion.CSharp9, "null")] 979public async Task TestConversion2_Throw1(LanguageVersion languageVersion, string expectedFalseExpression) 1043[InlineData(LanguageVersion.CSharp8, "(string)null")] 1044[InlineData(LanguageVersion.CSharp9, "null")] 1045public async Task TestConversion3(LanguageVersion languageVersion, string expectedFalseExpression) 1078[InlineData(LanguageVersion.CSharp8, "(string)null")] 1079[InlineData(LanguageVersion.CSharp9, "null")] 1080public async Task TestConversion3_Throw1(LanguageVersion languageVersion, string expectedFalseExpression) 1113[InlineData(LanguageVersion.CSharp8, "(string)null")] 1114[InlineData(LanguageVersion.CSharp9, "null")] 1115public async Task TestConversion3_Throw2(LanguageVersion languageVersion, string expectedTrue)

539LanguageVersion = LanguageVersion.CSharp7_1 877LanguageVersion = LanguageVersion.CSharp9 912LanguageVersion = LanguageVersion.CSharp9

37LanguageVersion = LanguageVersion.CSharp7 62LanguageVersion = LanguageVersion.CSharp7_1 89LanguageVersion = LanguageVersion.CSharp7_1 116LanguageVersion = LanguageVersion.CSharp7_1 136LanguageVersion = LanguageVersion.CSharp7_1 167LanguageVersion = LanguageVersion.CSharp7_1 189LanguageVersion = LanguageVersion.CSharp7_1 216LanguageVersion = LanguageVersion.CSharp7_1 236LanguageVersion = LanguageVersion.CSharp7_1 256LanguageVersion = LanguageVersion.CSharp7_1 287LanguageVersion = LanguageVersion.CSharp7_1 310LanguageVersion = LanguageVersion.CSharp7_1 337LanguageVersion = LanguageVersion.CSharp7_1, 366LanguageVersion = LanguageVersion.CSharp7_1, 397LanguageVersion = LanguageVersion.CSharp7_1 424LanguageVersion = LanguageVersion.CSharp7_1 453LanguageVersion = LanguageVersion.CSharp7_1 479LanguageVersion = LanguageVersion.CSharp7_1 505LanguageVersion = LanguageVersion.CSharp7_1 538LanguageVersion = LanguageVersion.CSharp7_1 561LanguageVersion = LanguageVersion.CSharp7_1 584LanguageVersion = LanguageVersion.CSharp7_1 617LanguageVersion = LanguageVersion.CSharp7_1 640LanguageVersion = LanguageVersion.CSharp7_1 663LanguageVersion = LanguageVersion.CSharp7_1 696LanguageVersion = LanguageVersion.CSharp7_1 729LanguageVersion = LanguageVersion.CSharp7_1 749LanguageVersion = LanguageVersion.CSharp7_1 769LanguageVersion = LanguageVersion.CSharp7_1 796LanguageVersion = LanguageVersion.CSharp7_1

56LanguageVersion = LanguageVersion.CSharp13, 94LanguageVersion = LanguageVersion.CSharp13, 117LanguageVersion = LanguageVersion.CSharp13, 140LanguageVersion = LanguageVersion.CSharp13, 163LanguageVersion = LanguageVersion.CSharp13, 201LanguageVersion = LanguageVersion.CSharp13, 239LanguageVersion = LanguageVersion.CSharp13, 277LanguageVersion = LanguageVersion.CSharp13, 315LanguageVersion = LanguageVersion.CSharp13, 353LanguageVersion = LanguageVersion.CSharp13, 391LanguageVersion = LanguageVersion.CSharp13, 429LanguageVersion = LanguageVersion.CSharp13, 473LanguageVersion = LanguageVersion.CSharp13, 517LanguageVersion = LanguageVersion.CSharp13, 561LanguageVersion = LanguageVersion.CSharp13, 605LanguageVersion = LanguageVersion.CSharp13,

299LanguageVersion = LanguageVersion.CSharp11

29LanguageVersion version = LanguageVersion.CSharp8) 33ReferenceAssemblies = version == LanguageVersion.CSharp9 ? ReferenceAssemblies.Net.Net50 : ReferenceAssemblies.Default, 51LanguageVersion version = LanguageVersion.CSharp8) 55ReferenceAssemblies = version == LanguageVersion.CSharp9 ? ReferenceAssemblies.Net.Net50 : ReferenceAssemblies.Default, 71LanguageVersion version = LanguageVersion.CSharp8) 75ReferenceAssemblies = version == LanguageVersion.CSharp9 ? ReferenceAssemblies.Net.Net50 : ReferenceAssemblies.Default, 269await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp9); 308LanguageVersion = LanguageVersion.CSharp9, 505await TestWithUseBlockBodyIncludingPropertiesAndIndexers(code, fixedCode, LanguageVersion.CSharp9); 888LanguageVersion = LanguageVersion.CSharp9, 921await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6); 955await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6);

24private static async Task TestWithUseExpressionBody(string code, string fixedCode, LanguageVersion version = LanguageVersion.CSharp8) 273await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6); 302await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6);

912LanguageVersion = LanguageVersion.CSharp9, 941LanguageVersion = LanguageVersion.CSharp9,

25private static async Task TestWithUseExpressionBody(string code, string fixedCode, LanguageVersion version = LanguageVersion.CSharp8) 862await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp5); 875await TestWithUseExpressionBody(code, code, LanguageVersion.CSharp6); 895await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6); 909await TestWithUseExpressionBody(code, code, LanguageVersion.CSharp6); 941await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6);

30LanguageVersion version = LanguageVersion.CSharp8) 529await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6); 564await TestWithUseExpressionBody(code, fixedCode, LanguageVersion.CSharp6);

22private static readonly LanguageVersion CSharp14 = LanguageVersionExtensions.CSharpNext; 330LanguageVersion = LanguageVersion.CSharp13,

35LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp8, 57LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 78LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 99LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 120LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 135LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 162LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 177LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 192LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 213LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 240LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 262LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 297LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 324LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 345LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 366LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 387LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 408LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 429LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 444LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 465LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 486LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 501LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 517LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 536LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 559LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 582LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 607LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 642LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 665LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 688LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 717LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 732LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 756LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 781LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 806LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 831LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 848LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 865LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 890LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 915LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 932LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 949LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 974LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9,

3367""", new(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9), options: ImplicitTypeEverywhere()));

41LanguageVersion = LanguageVersion.CSharp7, 533LanguageVersion = LanguageVersion.CSharp8, 570LanguageVersion = LanguageVersion.CSharp8,

41LanguageVersion = LanguageVersion.CSharp7, 100LanguageVersion = LanguageVersion.CSharp8, 137LanguageVersion = LanguageVersion.CSharp8, 400LanguageVersion = LanguageVersion.CSharp7,

30CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Latest); 87""", count: 0, parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6))); 103""", count: 0, parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp7)));

49""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp7_3))); 64""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp7_3))); 88""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp7_3))); 114""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp7_3))); 129""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp7_3))); 144""", parameters: new TestParameters().WithParseOptions(new CSharpParseOptions(LanguageVersion.CSharp8)));

95new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 115new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9))); 175""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8)); 205""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 235""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8)); 265""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 283""", parameters: new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6)));

26private static readonly ParseOptions CSharp7 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp7); 27private static readonly ParseOptions CSharp8 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8); 28private static readonly ParseOptions CSharp9 = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9); 99new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 119new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9))); 287""", parameters: new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6)));

20private static async Task VerifyAsync(string source, string fixedSource, LanguageVersion languageVersion) 31=> await VerifyAsync(source, fixedSource, LanguageVersion.CSharp9); 34=> await VerifyAsync(source, fixedSource, LanguageVersion.CSharp8);

29private static readonly ParseOptions CSharp72ParseOptions = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp7_2); 53""", parameters: new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6))); 4165parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10)); 4181new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)));

30LanguageVersion languageVersion = LanguageVersion.CSharp9) 50LanguageVersion languageVersion = LanguageVersion.CSharp9) 307""", LanguageVersion.CSharp5); 325""", LanguageVersion.CSharp5);

25LanguageVersion? languageVersion = null) 77LanguageVersion = LanguageVersion.CSharp12, 184LanguageVersion = LanguageVersion.CSharp12, 249LanguageVersion = LanguageVersion.CSharp12, 313LanguageVersion = LanguageVersion.CSharp12, 358LanguageVersion = LanguageVersion.CSharp12, 405LanguageVersion = LanguageVersion.CSharp12, 452LanguageVersion = LanguageVersion.CSharp12, 498LanguageVersion = LanguageVersion.CSharp12, 547LanguageVersion = LanguageVersion.CSharp12, 598LanguageVersion = LanguageVersion.CSharp12, 618""", LanguageVersion.CSharp2); 679LanguageVersion = LanguageVersion.CSharp12, 735LanguageVersion = LanguageVersion.CSharp12, 792LanguageVersion = LanguageVersion.CSharp12, 837LanguageVersion = LanguageVersion.CSharp12, 889LanguageVersion = LanguageVersion.CSharp12, 990LanguageVersion = LanguageVersion.CSharp12, 1043LanguageVersion = LanguageVersion.CSharp12, 1155LanguageVersion = LanguageVersion.CSharp12, 1220LanguageVersion = LanguageVersion.CSharp12, 1257LanguageVersion = LanguageVersion.CSharp12, 1339LanguageVersion = LanguageVersion.CSharp12, 1412LanguageVersion = LanguageVersion.CSharp12, 1455LanguageVersion = LanguageVersion.CSharp12, 1502LanguageVersion = LanguageVersion.CSharp12, 1545LanguageVersion = LanguageVersion.CSharp12, 1592LanguageVersion = LanguageVersion.CSharp12,

69LanguageVersion = LanguageVersion.CSharp7, 90LanguageVersion = LanguageVersion.CSharp7, 109LanguageVersion = LanguageVersion.CSharp7, 133LanguageVersion = LanguageVersion.CSharp7, 154LanguageVersion = LanguageVersion.CSharp8, 175LanguageVersion = LanguageVersion.CSharp9, 196LanguageVersion = LanguageVersion.CSharp8, 217LanguageVersion = LanguageVersion.CSharp9, 241LanguageVersion = LanguageVersion.CSharp9, 264LanguageVersion = LanguageVersion.CSharp8, 299LanguageVersion = LanguageVersion.CSharp9, 336LanguageVersion = LanguageVersion.CSharp10, 359LanguageVersion = LanguageVersion.CSharp8, 382LanguageVersion = LanguageVersion.CSharp8, 419LanguageVersion = LanguageVersion.CSharp10, 450LanguageVersion = LanguageVersion.CSharp9, 481LanguageVersion = LanguageVersion.CSharp9, 516LanguageVersion = LanguageVersion.CSharp9, 547LanguageVersion = LanguageVersion.CSharp9, 598LanguageVersion = LanguageVersion.CSharp9, 619LanguageVersion = LanguageVersion.CSharp9, 640LanguageVersion = LanguageVersion.CSharp9, 664LanguageVersion = LanguageVersion.CSharp9, 699LanguageVersion = LanguageVersion.CSharp9, 736LanguageVersion = LanguageVersion.CSharp10, 771LanguageVersion = LanguageVersion.CSharp9, 808LanguageVersion = LanguageVersion.CSharp10, 833LanguageVersion = LanguageVersion.CSharp9, 870LanguageVersion = LanguageVersion.CSharp10, 983LanguageVersion = LanguageVersion.CSharp9, 1036LanguageVersion = LanguageVersion.CSharp9, 1133LanguageVersion = LanguageVersion.CSharp9, 1154LanguageVersion = LanguageVersion.CSharp9, 1227LanguageVersion = LanguageVersion.CSharp9,

42[InlineData("x == null", "o is not string x", LanguageVersion.CSharp9)] 43public async Task InlineTypeCheck1(string input, string output, LanguageVersion version = LanguageVersion.CSharp8) 59private async Task TestStatement(string input, string output, LanguageVersion version = LanguageVersion.CSharp8) 98""", new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6))); 1166""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1205""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1471""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1502""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1557""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1589""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1652""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8))); 1694""", parameters: new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8)));

72""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp8)); 129""", parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9));

77""", new TestParameters(parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6)));

49LanguageVersion = LanguageVersion.CSharp9, 80LanguageVersion = LanguageVersion.CSharp9, 111LanguageVersion = LanguageVersion.CSharp9, 142LanguageVersion = LanguageVersion.CSharp9, 173LanguageVersion = LanguageVersion.CSharp9, 204LanguageVersion = LanguageVersion.CSharp9, 247LanguageVersion = LanguageVersion.CSharp9, 284LanguageVersion = LanguageVersion.CSharp9, 304LanguageVersion = LanguageVersion.CSharp8, 335LanguageVersion = LanguageVersion.CSharp9, 366LanguageVersion = LanguageVersion.CSharp9, 401LanguageVersion = LanguageVersion.CSharp9, 421LanguageVersion = LanguageVersion.CSharp9, 444LanguageVersion = LanguageVersion.CSharp9, 467LanguageVersion = LanguageVersion.CSharp9, 506LanguageVersion = LanguageVersion.CSharp9,

40LanguageVersion = LanguageVersion.CSharp12, 57LanguageVersion = LanguageVersion.CSharp11, 74LanguageVersion = LanguageVersion.CSharp12, 96LanguageVersion = LanguageVersion.CSharp12, 117LanguageVersion = LanguageVersion.CSharp12, 146LanguageVersion = LanguageVersion.CSharp12, 183LanguageVersion = LanguageVersion.CSharp12, 220LanguageVersion = LanguageVersion.CSharp12, 259LanguageVersion = LanguageVersion.CSharp12, 298LanguageVersion = LanguageVersion.CSharp12, 339LanguageVersion = LanguageVersion.CSharp12, 355LanguageVersion = LanguageVersion.CSharp12, 373LanguageVersion = LanguageVersion.CSharp12, 397LanguageVersion = LanguageVersion.CSharp12, 421LanguageVersion = LanguageVersion.CSharp12, 445LanguageVersion = LanguageVersion.CSharp12, 469LanguageVersion = LanguageVersion.CSharp12, 490LanguageVersion = LanguageVersion.CSharp12, 511LanguageVersion = LanguageVersion.CSharp12, 529LanguageVersion = LanguageVersion.CSharp12, 550LanguageVersion = LanguageVersion.CSharp12, 574LanguageVersion = LanguageVersion.CSharp12, 603LanguageVersion = LanguageVersion.CSharp12, 630LanguageVersion = LanguageVersion.CSharp12, 658LanguageVersion = LanguageVersion.CSharp12, 686LanguageVersion = LanguageVersion.CSharp12, 715LanguageVersion = LanguageVersion.CSharp12, 738LanguageVersion = LanguageVersion.CSharp12, 793LanguageVersion = LanguageVersion.CSharp12, 832LanguageVersion = LanguageVersion.CSharp12, 871LanguageVersion = LanguageVersion.CSharp12, 910LanguageVersion = LanguageVersion.CSharp12, 951LanguageVersion = LanguageVersion.CSharp12, 994LanguageVersion = LanguageVersion.CSharp12, 1037LanguageVersion = LanguageVersion.CSharp12, 1059LanguageVersion = LanguageVersion.CSharp12, 1081LanguageVersion = LanguageVersion.CSharp12, 1111LanguageVersion = LanguageVersion.CSharp12, 1147LanguageVersion = LanguageVersion.CSharp12, 1187LanguageVersion = LanguageVersion.CSharp12, 1217LanguageVersion = LanguageVersion.CSharp12, 1265LanguageVersion = LanguageVersion.CSharp12, 1309LanguageVersion = LanguageVersion.CSharp12, 1349LanguageVersion = LanguageVersion.CSharp12, 1398LanguageVersion = LanguageVersion.CSharp12, 1445LanguageVersion = LanguageVersion.CSharp12, 1487LanguageVersion = LanguageVersion.CSharp12, 1529LanguageVersion = LanguageVersion.CSharp12, 1577LanguageVersion = LanguageVersion.CSharp12, 1625LanguageVersion = LanguageVersion.CSharp12, 1672LanguageVersion = LanguageVersion.CSharp12, 1721LanguageVersion = LanguageVersion.CSharp12, 1754LanguageVersion = LanguageVersion.CSharp12, 1786LanguageVersion = LanguageVersion.CSharp12, 1827LanguageVersion = LanguageVersion.CSharp12, 1886LanguageVersion = LanguageVersion.CSharp12, 1914LanguageVersion = LanguageVersion.CSharp12, 1942LanguageVersion = LanguageVersion.CSharp12, 1976LanguageVersion = LanguageVersion.CSharp12, 2012LanguageVersion = LanguageVersion.CSharp12, 2049LanguageVersion = LanguageVersion.CSharp12, 2088LanguageVersion = LanguageVersion.CSharp12, 2120LanguageVersion = LanguageVersion.CSharp12, 2155LanguageVersion = LanguageVersion.CSharp12, 2183LanguageVersion = LanguageVersion.CSharp12, 2217LanguageVersion = LanguageVersion.CSharp12, 2247LanguageVersion = LanguageVersion.CSharp12, 2283LanguageVersion = LanguageVersion.CSharp12, 2311LanguageVersion = LanguageVersion.CSharp12, 2345LanguageVersion = LanguageVersion.CSharp12, 2375LanguageVersion = LanguageVersion.CSharp12, 2411LanguageVersion = LanguageVersion.CSharp12, 2440LanguageVersion = LanguageVersion.CSharp12, 2473LanguageVersion = LanguageVersion.CSharp12, 2502LanguageVersion = LanguageVersion.CSharp12, 2535LanguageVersion = LanguageVersion.CSharp12, 2565LanguageVersion = LanguageVersion.CSharp12, 2586LanguageVersion = LanguageVersion.CSharp12, 2612LanguageVersion = LanguageVersion.CSharp12, 2638LanguageVersion = LanguageVersion.CSharp12, 2660LanguageVersion = LanguageVersion.CSharp12, 2682LanguageVersion = LanguageVersion.CSharp12, 2706LanguageVersion = LanguageVersion.CSharp12, 2730LanguageVersion = LanguageVersion.CSharp12, 2754LanguageVersion = LanguageVersion.CSharp12, 2778LanguageVersion = LanguageVersion.CSharp12, 2804LanguageVersion = LanguageVersion.CSharp12, 2830LanguageVersion = LanguageVersion.CSharp12, 2863LanguageVersion = LanguageVersion.CSharp12, 2904LanguageVersion = LanguageVersion.CSharp12, 2936LanguageVersion = LanguageVersion.CSharp12, 2968LanguageVersion = LanguageVersion.CSharp12, 2996LanguageVersion = LanguageVersion.CSharp12, 3024LanguageVersion = LanguageVersion.CSharp12, 3052LanguageVersion = LanguageVersion.CSharp12, 3129LanguageVersion = LanguageVersion.CSharp12, 3167LanguageVersion = LanguageVersion.CSharp12, 3212LanguageVersion = LanguageVersion.CSharp12, 3250LanguageVersion = LanguageVersion.CSharp12, 3292LanguageVersion = LanguageVersion.CSharp12, 3321LanguageVersion = LanguageVersion.CSharp12, 3343LanguageVersion = LanguageVersion.CSharp12, 3370LanguageVersion = LanguageVersion.CSharp12, 3391LanguageVersion = LanguageVersion.CSharp12, 3420LanguageVersion = LanguageVersion.CSharp12, 3442LanguageVersion = LanguageVersion.CSharp12, 3468LanguageVersion = LanguageVersion.CSharp12, 3497LanguageVersion = LanguageVersion.CSharp12, 3526LanguageVersion = LanguageVersion.CSharp12, 3555LanguageVersion = LanguageVersion.CSharp12, 3584LanguageVersion = LanguageVersion.CSharp12, 3606LanguageVersion = LanguageVersion.CSharp12, 3628LanguageVersion = LanguageVersion.CSharp12, 3645LanguageVersion = LanguageVersion.CSharp12, 3692LanguageVersion = LanguageVersion.CSharp12, 3728LanguageVersion = LanguageVersion.CSharp12, 3765LanguageVersion = LanguageVersion.CSharp12, 3791LanguageVersion = LanguageVersion.CSharp12, 3813LanguageVersion = LanguageVersion.CSharp12, 3839LanguageVersion = LanguageVersion.CSharp12, 3869LanguageVersion = LanguageVersion.CSharp12, 3912LanguageVersion = LanguageVersion.CSharp12, 3955LanguageVersion = LanguageVersion.CSharp12, 3998LanguageVersion = LanguageVersion.CSharp12, 4027LanguageVersion = LanguageVersion.CSharp12, 4070LanguageVersion = LanguageVersion.CSharp12, 4099LanguageVersion = LanguageVersion.CSharp12, 4125LanguageVersion = LanguageVersion.CSharp12, 4158LanguageVersion = LanguageVersion.CSharp12, 4187LanguageVersion = LanguageVersion.CSharp12, 4219LanguageVersion = LanguageVersion.CSharp12, 4248LanguageVersion = LanguageVersion.CSharp12, 4279LanguageVersion = LanguageVersion.CSharp12, 4307LanguageVersion = LanguageVersion.CSharp12, 4340LanguageVersion = LanguageVersion.CSharp12, 4370LanguageVersion = LanguageVersion.CSharp12, 4404LanguageVersion = LanguageVersion.CSharp12, 4435LanguageVersion = LanguageVersion.CSharp12, 4467LanguageVersion = LanguageVersion.CSharp12, 4502LanguageVersion = LanguageVersion.CSharp12,

142LanguageVersion = LanguageVersion.CSharp7_2 1944LanguageVersion = LanguageVersion.CSharp9, 1979LanguageVersion = LanguageVersion.CSharp9, 2005LanguageVersion = LanguageVersion.CSharp9, 2044LanguageVersion = LanguageVersion.CSharp9, 2079LanguageVersion = LanguageVersion.CSharp9, 2116LanguageVersion = LanguageVersion.CSharp9,

64LanguageVersion = LanguageVersion.CSharp13, 87LanguageVersion = LanguageVersion.CSharp12, 110LanguageVersion = LanguageVersion.CSharp12, 133LanguageVersion = LanguageVersion.CSharp12, 171LanguageVersion = LanguageVersion.CSharp13, 209LanguageVersion = LanguageVersion.CSharp13, 232LanguageVersion = LanguageVersion.CSharp13, 255LanguageVersion = LanguageVersion.CSharp13, 280LanguageVersion = LanguageVersion.CSharp13, 303LanguageVersion = LanguageVersion.CSharp13, 343LanguageVersion = LanguageVersion.CSharp13, 381LanguageVersion = LanguageVersion.CSharp13, 422LanguageVersion = LanguageVersion.CSharp13, 460LanguageVersion = LanguageVersion.CSharp13, 486LanguageVersion = LanguageVersion.CSharp13, 531LanguageVersion = LanguageVersion.CSharp13, 584LanguageVersion = LanguageVersion.CSharp13, 604LanguageVersion = LanguageVersion.CSharp13, 631LanguageVersion = LanguageVersion.CSharp13, 656LanguageVersion = LanguageVersion.CSharp13, 679LanguageVersion = LanguageVersion.CSharp13, 702LanguageVersion = LanguageVersion.CSharp13, 725LanguageVersion = LanguageVersion.CSharp13, 753LanguageVersion = LanguageVersion.CSharp13, 781LanguageVersion = LanguageVersion.CSharp13, 804LanguageVersion = LanguageVersion.CSharp13, 827LanguageVersion = LanguageVersion.CSharp13, 873LanguageVersion = LanguageVersion.CSharp13, 921LanguageVersion = LanguageVersion.CSharp13, 959LanguageVersion = LanguageVersion.CSharp13, 997LanguageVersion = LanguageVersion.CSharp13, 1035LanguageVersion = LanguageVersion.CSharp13, 1073LanguageVersion = LanguageVersion.CSharp13, 1121LanguageVersion = LanguageVersion.CSharp13, 1169LanguageVersion = LanguageVersion.CSharp13, 1217LanguageVersion = LanguageVersion.CSharp13, 1265LanguageVersion = LanguageVersion.CSharp13, 1321LanguageVersion = LanguageVersion.CSharp13, 1377LanguageVersion = LanguageVersion.CSharp13, 1417LanguageVersion = LanguageVersion.CSharp13, 1438LanguageVersion = LanguageVersion.CSharp13, 1478LanguageVersion = LanguageVersion.CSharp13, 1524LanguageVersion = LanguageVersion.CSharp13, 1568LanguageVersion = LanguageVersion.CSharp13, 1612LanguageVersion = LanguageVersion.CSharp13,

148""", new TestParameters(CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6))); 615""", TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9)); 651""", TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9)); 688""", TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp9));

42LanguageVersion = LanguageVersion.CSharp6, 444LanguageVersion = LanguageVersion.CSharp9,

90LanguageVersion = LanguageVersion.CSharp13,

45LanguageVersion = LanguageVersion.CSharp12 64LanguageVersion = LanguageVersion.CSharp10 84LanguageVersion = LanguageVersion.CSharp12 104LanguageVersion = LanguageVersion.CSharp12 131LanguageVersion = LanguageVersion.CSharp12 151LanguageVersion = LanguageVersion.CSharp12 175LanguageVersion = LanguageVersion.CSharp12 197LanguageVersion = LanguageVersion.CSharp12 217LanguageVersion = LanguageVersion.CSharp12 248LanguageVersion = LanguageVersion.CSharp12 281LanguageVersion = LanguageVersion.CSharp12 312LanguageVersion = LanguageVersion.CSharp12 343LanguageVersion = LanguageVersion.CSharp12 374LanguageVersion = LanguageVersion.CSharp12 405LanguageVersion = LanguageVersion.CSharp12 435LanguageVersion = LanguageVersion.CSharp12 466LanguageVersion = LanguageVersion.CSharp12 497LanguageVersion = LanguageVersion.CSharp12 532LanguageVersion = LanguageVersion.CSharp12 563LanguageVersion = LanguageVersion.CSharp12 594LanguageVersion = LanguageVersion.CSharp12 615LanguageVersion = LanguageVersion.CSharp12 636LanguageVersion = LanguageVersion.CSharp12 657LanguageVersion = LanguageVersion.CSharp12 691LanguageVersion = LanguageVersion.CSharp12 772LanguageVersion = LanguageVersion.CSharp12 800LanguageVersion = LanguageVersion.CSharp12 833LanguageVersion = LanguageVersion.CSharp12 888LanguageVersion = LanguageVersion.CSharp12 919LanguageVersion = LanguageVersion.CSharp12 950LanguageVersion = LanguageVersion.CSharp12 981LanguageVersion = LanguageVersion.CSharp12 1012LanguageVersion = LanguageVersion.CSharp12 1043LanguageVersion = LanguageVersion.CSharp12 1074LanguageVersion = LanguageVersion.CSharp12 1094LanguageVersion = LanguageVersion.CSharp12 1125LanguageVersion = LanguageVersion.CSharp12 1156LanguageVersion = LanguageVersion.CSharp12 1187LanguageVersion = LanguageVersion.CSharp12 1218LanguageVersion = LanguageVersion.CSharp12 1249LanguageVersion = LanguageVersion.CSharp12 1290LanguageVersion = LanguageVersion.CSharp12 1345LanguageVersion = LanguageVersion.CSharp12 1434LanguageVersion = LanguageVersion.CSharp12 1465LanguageVersion = LanguageVersion.CSharp12 1496LanguageVersion = LanguageVersion.CSharp12 1527LanguageVersion = LanguageVersion.CSharp12 1562LanguageVersion = LanguageVersion.CSharp12 1597LanguageVersion = LanguageVersion.CSharp12

1572[InlineData("iso-1", LanguageVersion.CSharp1)] 1573[InlineData("iso-2", LanguageVersion.CSharp2)] 1574[InlineData("1", LanguageVersion.CSharp1)] 1575[InlineData("1.0", LanguageVersion.CSharp1)] 1576[InlineData("2", LanguageVersion.CSharp2)] 1577[InlineData("2.0", LanguageVersion.CSharp2)] 1578[InlineData("3", LanguageVersion.CSharp3)] 1579[InlineData("3.0", LanguageVersion.CSharp3)] 1580[InlineData("4", LanguageVersion.CSharp4)] 1581[InlineData("4.0", LanguageVersion.CSharp4)] 1582[InlineData("5", LanguageVersion.CSharp5)] 1583[InlineData("5.0", LanguageVersion.CSharp5)] 1584[InlineData("6", LanguageVersion.CSharp6)] 1585[InlineData("6.0", LanguageVersion.CSharp6)] 1586[InlineData("7", LanguageVersion.CSharp7)] 1587[InlineData("7.0", LanguageVersion.CSharp7)] 1588[InlineData("7.1", LanguageVersion.CSharp7_1)] 1589[InlineData("7.2", LanguageVersion.CSharp7_2)] 1590[InlineData("7.3", LanguageVersion.CSharp7_3)] 1591[InlineData("8", LanguageVersion.CSharp8)] 1592[InlineData("8.0", LanguageVersion.CSharp8)] 1593[InlineData("9", LanguageVersion.CSharp9)] 1594[InlineData("9.0", LanguageVersion.CSharp9)] 1595[InlineData("preview", LanguageVersion.Preview)] 1596public void LangVersion_CanParseCorrectVersions(string value, LanguageVersion expectedVersion) 1610[InlineData("6", "7", LanguageVersion.CSharp7)] 1611[InlineData("7", "6", LanguageVersion.CSharp6)] 1612[InlineData("7", "1", LanguageVersion.CSharp1)] 1613[InlineData("6", "iso-1", LanguageVersion.CSharp1)] 1614[InlineData("6", "iso-2", LanguageVersion.CSharp2)] 1615[InlineData("6", "default", LanguageVersion.Default)] 1616[InlineData("7", "default", LanguageVersion.Default)] 1617[InlineData("iso-2", "6", LanguageVersion.CSharp6)] 1618public void LangVersion_LatterVersionOverridesFormerOne(string formerValue, string latterValue, LanguageVersion expectedVersion) 1628LanguageVersion defaultEffectiveVersion = LanguageVersion.Default.MapSpecifiedToEffectiveVersion(); 1629Assert.NotEqual(LanguageVersion.Default, defaultEffectiveVersion); 1634Assert.Equal(LanguageVersion.Default, parsedArgs.ParseOptions.SpecifiedLanguageVersion); 1641LanguageVersion latestEffectiveVersion = LanguageVersion.Latest.MapSpecifiedToEffectiveVersion(); 1642Assert.NotEqual(LanguageVersion.Latest, latestEffectiveVersion); 1647Assert.Equal(LanguageVersion.Latest, parsedArgs.ParseOptions.SpecifiedLanguageVersion); 1656Assert.Equal(LanguageVersion.Default, parsedArgs.ParseOptions.SpecifiedLanguageVersion); 1723Enum.GetValues(typeof(LanguageVersion)).Cast<LanguageVersion>().Select(v => v.ToDisplayString())); 1730var versions = Enum.GetValues(typeof(LanguageVersion)) 1731.Cast<LanguageVersion>() 1733LanguageVersion.Default, 1734LanguageVersion.Latest, 1735LanguageVersion.LatestMajor, 1736LanguageVersion.Preview 1767InlineData(LanguageVersion.CSharp1, LanguageVersion.CSharp1), 1768InlineData(LanguageVersion.CSharp2, LanguageVersion.CSharp2), 1769InlineData(LanguageVersion.CSharp3, LanguageVersion.CSharp3), 1770InlineData(LanguageVersion.CSharp4, LanguageVersion.CSharp4), 1771InlineData(LanguageVersion.CSharp5, LanguageVersion.CSharp5), 1772InlineData(LanguageVersion.CSharp6, LanguageVersion.CSharp6), 1773InlineData(LanguageVersion.CSharp7, LanguageVersion.CSharp7), 1774InlineData(LanguageVersion.CSharp7_1, LanguageVersion.CSharp7_1), 1775InlineData(LanguageVersion.CSharp7_2, LanguageVersion.CSharp7_2), 1776InlineData(LanguageVersion.CSharp7_3, LanguageVersion.CSharp7_3), 1777InlineData(LanguageVersion.CSharp8, LanguageVersion.CSharp8), 1778InlineData(LanguageVersion.CSharp9, LanguageVersion.CSharp9), 1779InlineData(LanguageVersion.CSharp10, LanguageVersion.CSharp10), 1780InlineData(LanguageVersion.CSharp11, LanguageVersion.CSharp11), 1781InlineData(LanguageVersion.CSharp12, LanguageVersion.CSharp12), 1782InlineData(LanguageVersion.CSharp13, LanguageVersion.CSharp13), 1783InlineData(LanguageVersion.CSharp13, LanguageVersion.LatestMajor), 1784InlineData(LanguageVersion.CSharp13, LanguageVersion.Latest), 1785InlineData(LanguageVersion.CSharp13, LanguageVersion.Default), 1786InlineData(LanguageVersion.Preview, LanguageVersion.Preview), 1788public void LanguageVersion_MapSpecifiedToEffectiveVersion(LanguageVersion expectedMappedVersion, LanguageVersion input) 1798InlineData("iso-1", true, LanguageVersion.CSharp1), 1799InlineData("ISO-1", true, LanguageVersion.CSharp1), 1800InlineData("iso-2", true, LanguageVersion.CSharp2), 1801InlineData("1", true, LanguageVersion.CSharp1), 1802InlineData("1.0", true, LanguageVersion.CSharp1), 1803InlineData("2", true, LanguageVersion.CSharp2), 1804InlineData("2.0", true, LanguageVersion.CSharp2), 1805InlineData("3", true, LanguageVersion.CSharp3), 1806InlineData("3.0", true, LanguageVersion.CSharp3), 1807InlineData("4", true, LanguageVersion.CSharp4), 1808InlineData("4.0", true, LanguageVersion.CSharp4), 1809InlineData("5", true, LanguageVersion.CSharp5), 1810InlineData("5.0", true, LanguageVersion.CSharp5), 1811InlineData("05", false, LanguageVersion.Default), 1812InlineData("6", true, LanguageVersion.CSharp6), 1813InlineData("6.0", true, LanguageVersion.CSharp6), 1814InlineData("7", true, LanguageVersion.CSharp7), 1815InlineData("7.0", true, LanguageVersion.CSharp7), 1816InlineData("07", false, LanguageVersion.Default), 1817InlineData("7.1", true, LanguageVersion.CSharp7_1), 1818InlineData("7.2", true, LanguageVersion.CSharp7_2), 1819InlineData("7.3", true, LanguageVersion.CSharp7_3), 1820InlineData("8", true, LanguageVersion.CSharp8), 1821InlineData("8.0", true, LanguageVersion.CSharp8), 1822InlineData("9", true, LanguageVersion.CSharp9), 1823InlineData("9.0", true, LanguageVersion.CSharp9), 1824InlineData("10", true, LanguageVersion.CSharp10), 1825InlineData("10.0", true, LanguageVersion.CSharp10), 1826InlineData("11", true, LanguageVersion.CSharp11), 1827InlineData("11.0", true, LanguageVersion.CSharp11), 1828InlineData("12", true, LanguageVersion.CSharp12), 1829InlineData("12.0", true, LanguageVersion.CSharp12), 1830InlineData("13", true, LanguageVersion.CSharp13), 1831InlineData("13.0", true, LanguageVersion.CSharp13), 1832InlineData("08", false, LanguageVersion.Default), 1833InlineData("07.1", false, LanguageVersion.Default), 1834InlineData("default", true, LanguageVersion.Default), 1835InlineData("latest", true, LanguageVersion.Latest), 1836InlineData("latestmajor", true, LanguageVersion.LatestMajor), 1837InlineData("preview", true, LanguageVersion.Preview), 1838InlineData("latestpreview", false, LanguageVersion.Default), 1839InlineData(null, true, LanguageVersion.Default), 1840InlineData("bad", false, LanguageVersion.Default)] 1841public void LanguageVersion_TryParseDisplayString(string input, bool success, LanguageVersion expected) 1843Assert.Equal(success, LanguageVersionFacts.TryParse(input, out var version)); 1855Assert.True(LanguageVersionFacts.TryParse("ISO-1", out var version)); 1856Assert.Equal(LanguageVersion.CSharp1, version); 1869var expected = Enum.GetValues(typeof(LanguageVersion)).Cast<LanguageVersion>() 12482VerifyQuotedValid("langversion", "2", LanguageVersion.CSharp2, x => x.ParseOptions.LanguageVersion); 14851public void SourceGeneratorsRunRegardlessOfLanguageVersion(LanguageVersion version)

141if (!ConvertNamespaceAnalysis.CanOfferUseFileScoped(s_fileScopedNamespacePreferenceOption, (CompilationUnitSyntax)parsedDocument.Root, namespaceDecl, forAnalyzer: true, LanguageVersion.CSharp10))

24new(languageVersion: LanguageVersion.Latest, kind: SourceCodeKind.Script);

182parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7));

3255[new CSharpParseOptions(LanguageVersion.CSharp8)],

111LanguageVersion = LanguageVersion.CSharp6, 148LanguageVersion = LanguageVersion.CSharp7, 186LanguageVersion = LanguageVersion.CSharp6, 230LanguageVersion = LanguageVersion.CSharp6, 326LanguageVersion = LanguageVersion.CSharp6, 364LanguageVersion = LanguageVersion.CSharp6, 402LanguageVersion = LanguageVersion.CSharp6, 445LanguageVersion = LanguageVersion.CSharp6, 487LanguageVersion = LanguageVersion.CSharp6, 547LanguageVersion = LanguageVersion.CSharp6, 615LanguageVersion = LanguageVersion.CSharp6, 877LanguageVersion = LanguageVersion.CSharp6, 949LanguageVersion = LanguageVersion.CSharp6, 993LanguageVersion = LanguageVersion.CSharp6, 1048LanguageVersion = LanguageVersion.CSharp6, 1101LanguageVersion = LanguageVersion.CSharp6, 1146LanguageVersion = LanguageVersion.CSharp6, 1189LanguageVersion = LanguageVersion.CSharp6, 1233LanguageVersion = LanguageVersion.CSharp6, 1285LanguageVersion = LanguageVersion.CSharp6, 1491LanguageVersion = LanguageVersion.CSharp6, 1529LanguageVersion = LanguageVersion.CSharp6, 1567LanguageVersion = LanguageVersion.CSharp6, 1611LanguageVersion = LanguageVersion.CSharp6, 1655LanguageVersion = LanguageVersion.CSharp6, 1707LanguageVersion = LanguageVersion.CSharp6, 1761LanguageVersion = LanguageVersion.CSharp6, 1813LanguageVersion = LanguageVersion.CSharp6, 1857LanguageVersion = LanguageVersion.CSharp6, 1901LanguageVersion = LanguageVersion.CSharp6, 1953LanguageVersion = LanguageVersion.CSharp6, 1997LanguageVersion = LanguageVersion.CSharp6, 2040LanguageVersion = LanguageVersion.CSharp6, 2085LanguageVersion = LanguageVersion.CSharp6, 2128LanguageVersion = LanguageVersion.CSharp6, 2163LanguageVersion = LanguageVersion.CSharp6, 2336LanguageVersion = LanguageVersion.CSharp6, 2380LanguageVersion = LanguageVersion.CSharp6, 2428LanguageVersion = LanguageVersion.CSharp6, 2483LanguageVersion = LanguageVersion.CSharp6, 2540LanguageVersion = LanguageVersion.CSharp6, 2613LanguageVersion = LanguageVersion.CSharp6, 2658LanguageVersion = LanguageVersion.CSharp6, 2771LanguageVersion = LanguageVersion.CSharp8, 2820LanguageVersion = LanguageVersion.CSharp8, 2865LanguageVersion = LanguageVersion.CSharp6, 2911LanguageVersion = LanguageVersion.CSharp7, 2957LanguageVersion = LanguageVersion.CSharp8, 3003LanguageVersion = LanguageVersion.CSharp9, 3050LanguageVersion = LanguageVersion.CSharp8, 3100LanguageVersion = LanguageVersion.CSharp8, 3140LanguageVersion = LanguageVersion.CSharp6, 3150LanguageVersion = LanguageVersion.CSharp6, 3303LanguageVersion = LanguageVersion.CSharp6, 3368LanguageVersion = LanguageVersion.CSharp6, 3436LanguageVersion = LanguageVersion.CSharp6, 3515LanguageVersion = LanguageVersion.CSharp6, 3586LanguageVersion = LanguageVersion.CSharp6, 3661LanguageVersion = LanguageVersion.CSharp6, 3739LanguageVersion = LanguageVersion.CSharp6, 3817LanguageVersion = LanguageVersion.CSharp6, 4032LanguageVersion = LanguageVersion.Default, 4089LanguageVersion = LanguageVersion.Default, 4394LanguageVersion = LanguageVersion.Default, 4409LanguageVersion = LanguageVersion.CSharp12,

5592parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10),

51LanguageVersion = LanguageVersion.CSharp11, 72LanguageVersion = LanguageVersion.CSharp11, 142LanguageVersion = LanguageVersion.CSharp6, 295[InlineData(LanguageVersion.CSharp11)] 296[InlineData(LanguageVersion.CSharp8)] 297public async Task TestNotOnPartialMethodDefinition1(LanguageVersion languageVersion) 335LanguageVersion = LanguageVersion.CSharp9, 341[InlineData(LanguageVersion.CSharp11)] 342[InlineData(LanguageVersion.CSharp8)] 343public async Task TestNotOnPartialMethodDefinition2(LanguageVersion languageVersion) 381LanguageVersion = LanguageVersion.CSharp9, 425LanguageVersion = LanguageVersion.CSharp9, 496LanguageVersion = LanguageVersion.CSharp9, 987LanguageVersion = LanguageVersion.CSharp6, 1758LanguageVersion = LanguageVersion.CSharp11, 1808LanguageVersion = LanguageVersion.CSharp11, 1922LanguageVersion = LanguageVersion.CSharp11, 3064[InlineData(LanguageVersion.CSharp10)] 3065[InlineData(LanguageVersion.CSharp11)] 3066public async Task TestNotInRecord(LanguageVersion version) 3086LanguageVersion = LanguageVersion.CSharp12, 3099LanguageVersion = LanguageVersion.CSharp12, 3806LanguageVersion = LanguageVersion.Latest,

55LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9, 80LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp9,

685LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10 3387LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10, 3407LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10, 3430LanguageVersion = CodeAnalysis.CSharp.LanguageVersion.CSharp10,

34[StringSyntax(PredefinedEmbeddedLanguageNames.CSharpTest)] string source, LanguageVersion languageVersion)

37[StringSyntax(PredefinedEmbeddedLanguageNames.CSharpTest)] string code, LanguageVersion languageVersion = LanguageVersion.Default) 44[StringSyntax(PredefinedEmbeddedLanguageNames.CSharpTest)] string code, LanguageVersion languageVersion = LanguageVersion.Default, string? inlineDescription = null, bool dotAwait = false, bool dotAwaitf = false) 86""", LanguageVersion.CSharp9); 99""", LanguageVersion.CSharp9); 105await VerifyKeywordAsync("$$", LanguageVersion.CSharp9); 118""", LanguageVersion.CSharp9); 131""", LanguageVersion.CSharp9); 137await VerifyKeywordAsync("var z = $$", LanguageVersion.CSharp9); 150""", LanguageVersion.CSharp9); 156await VerifyAbsenceAsync("using $$", LanguageVersion.CSharp9); 177""", LanguageVersion.CSharp9); 183await VerifyAbsenceAsync("foreach $$", LanguageVersion.CSharp9); 197""", LanguageVersion.CSharp9); 207""", LanguageVersion.CSharp9); 221""", LanguageVersion.CSharp9); 231""", LanguageVersion.CSharp9); 245""", LanguageVersion.CSharp9); 255""", LanguageVersion.CSharp9); 268""", LanguageVersion.CSharp9); 274await VerifyAbsenceAsync("lock (this) { $$ }", LanguageVersion.CSharp9); 288""", LanguageVersion.CSharp9); 298""", LanguageVersion.CSharp9); 311""", LanguageVersion.CSharp9); 317await VerifyKeywordAsync("lock($$", LanguageVersion.CSharp9);

610[InlineData(LanguageVersion.CSharp7)] 611[InlineData(LanguageVersion.CSharp8)] 612[InlineData(LanguageVersion.Latest)] 615public async Task Parameter10(LanguageVersion languageVersion) 630if (languageVersion.MapSpecifiedToEffectiveVersion() >= LanguageVersion.CSharp8) 640[InlineData(LanguageVersion.CSharp7)] 641[InlineData(LanguageVersion.CSharp8)] 642[InlineData(LanguageVersion.Latest)] 645public async Task Parameter11(LanguageVersion languageVersion) 661if (languageVersion.MapSpecifiedToEffectiveVersion() >= LanguageVersion.CSharp8) 671[InlineData(LanguageVersion.CSharp7)] 672[InlineData(LanguageVersion.CSharp8)] 673[InlineData(LanguageVersion.Latest)] 676public async Task Parameter12(LanguageVersion languageVersion) 692if (languageVersion.MapSpecifiedToEffectiveVersion() >= LanguageVersion.CSharp8) 2596[InlineData(LanguageVersion.CSharp7)] 2597[InlineData(LanguageVersion.CSharp8)] 2598[InlineData(LanguageVersion.Latest)] 2601public async Task TestUseLocalAsLocalFunctionParameter(LanguageVersion languageVersion) 2616if (languageVersion.MapSpecifiedToEffectiveVersion() >= LanguageVersion.CSharp8) 2627[InlineData(LanguageVersion.CSharp7)] 2628[InlineData(LanguageVersion.CSharp8)] 2629[InlineData(LanguageVersion.Latest)] 2632public async Task TestCompletionDoesNotUseLocalAsLocalFunctionVariable(LanguageVersion languageVersion)

4038var options = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Latest);

13293await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13372await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13389await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13406await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13423await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13435await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 13446await VerifyItemExistsAsync(MakeMarkup(source, languageVersion: LanguageVersion.CSharp10), "parameter"); 15126LanguageVersion languageVersion = LanguageVersion.Preview)

502parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10), 542parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9), 583parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10), 894parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp10),

58parseOptions: new CSharpParseOptions(LanguageVersion.CSharp10)); 81parseOptions: new CSharpParseOptions(LanguageVersion.CSharp10)); 103parseOptions: new CSharpParseOptions(LanguageVersion.CSharp9));

2712AssertFormatWithView(expected, code, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 2737AssertFormatWithView(expected, code, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 2762AssertFormatWithView(expected, code, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 2782AssertFormatAfterTypeChar(code, expected, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 2802AssertFormatAfterTypeChar(code, expected, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 2822AssertFormatAfterTypeChar(code, expected, parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12));

3331options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 3351options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 3372options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12)); 3393options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp12));

1386parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp6),

1518Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 1537Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 1556Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 1575Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 1594Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 1613Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 3362Options.Regular.WithLanguageVersion(LanguageVersion.CSharp8), 3402Options.Regular.WithLanguageVersion(LanguageVersion.CSharp8), 8917Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 8932Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9053Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9068Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9083Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9098Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9117Options.Regular.WithLanguageVersion(LanguageVersion.Preview), 9489Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9503Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 9518Options.Regular.WithLanguageVersion(LanguageVersion.CSharp9), 10076await TestWithOptionsAsync(Options.Regular.WithLanguageVersion(LanguageVersion.CSharp11), source, 10091await TestWithOptionsAsync(Options.Regular.WithLanguageVersion(LanguageVersion.CSharp11), source, 10110await TestWithOptionsAsync(Options.Regular.WithLanguageVersion(LanguageVersion.CSharp11), source, 10865CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview), 10893CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview), 10922CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview), 10951CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview), 10979CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview), 11002CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview),

26protected static readonly CSharpParseOptions CSharp9ParseOptions = CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9);

40var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe.WithMainTypeName("Program"), parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 65var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 93var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe.WithMainTypeName("Program"), parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 118var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 159var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 202var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 233var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 270var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 306var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 337var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 381var sourceCompilation = CreateEmptyCompilation(source, new[] { corCompilation.ToMetadataReference(), taskCompilation.ToMetadataReference() }, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 421var sourceCompilation = CreateEmptyCompilation(source, new[] { corCompilation.ToMetadataReference(), taskCompilation.ToMetadataReference() }, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 449var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 467var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 489var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 508var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 526var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 544var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 566var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 584var c = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 601var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 623var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 645var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 667var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 690var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 712var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 789var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 809var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 831var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 858var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 883var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 903var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 923var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 945var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 967var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 987var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 1007var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 1029var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 1052var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 1074CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)).VerifyDiagnostics( 1142var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)).VerifyDiagnostics(); 1164var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)).VerifyDiagnostics( 1220var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)).VerifyDiagnostics( 1273var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseDebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)).VerifyDiagnostics( 1310var compilation = CreateCompilationWithMscorlib461(source, options: TestOptions.ReleaseDebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)).VerifyDiagnostics( 1411var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 1465var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 1520var sourceCompilation = CreateCompilationWithMscorlib40(source, options: TestOptions.DebugExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1));

8073[InlineData("in", LanguageVersion.CSharp9)] 8074[InlineData("ref readonly", LanguageVersion.Preview)] 8075public void TestGetAsyncEnumeratorPatternViaInExtensionOnNonAssignableVariable(string modifier, LanguageVersion languageVersion) 8105[InlineData("in", LanguageVersion.CSharp9)] 8106[InlineData("ref readonly", LanguageVersion.Preview)] 8107public void TestGetAsyncEnumeratorPatternViaInExtensionOnAssignableVariable(string modifier, LanguageVersion languageVersion)

1636parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 1685sourceSymbolValidator: validator, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 3343parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 5371var comp = CreateCompilationWithMscorlib461(source, parseOptions: TestOptions.Script.WithLanguageVersion(LanguageVersion.CSharp6), options: TestOptions.DebugExe, references: s_valueTupleRefs); 8777parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8782parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8802parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8807parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8828parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8833parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8863parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8868parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8889parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8894parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8932parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8939parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 8987parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 8993parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1));

2244public void MethodCallWithParams3(LanguageVersion languageVersion) 2261if (languageVersion == LanguageVersion.CSharp13) 3492CreateCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6)).VerifyDiagnostics(

4003var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6));

2304var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6)); 2339var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6)); 2381var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6)); 2402var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6)); 2431var comp = CreateCompilation(text, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp6));

50parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 123parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 214", options: TestOptions.ReleaseDll, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3)); 313parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 369parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 410parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 429parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 493parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 528parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 568parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 670parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 726parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3), 869", options: TestOptions.UnsafeReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3)); 1050", options: TestOptions.UnsafeReleaseExe, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3)); 1699parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_3),

3945var verifier = CompileAndVerify(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 3971var compilation = CreateCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1)); 4029var verifier = CompileAndVerify(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 4050var verifier = CompileAndVerify(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 4077var comp7 = CreateCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7)); 4084var verifier7_1 = CompileAndVerify(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 4105var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7), 25688var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25733var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25759var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25804var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25830var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25869var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1), 25902var comp = CreateEmptyCompilation(source, parseOptions: TestOptions.Regular.WithLanguageVersion(LanguageVersion.CSharp7_1),

57parseOptions: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.Preview));

817}", options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 834}", options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9));

11332", options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 11351", options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9));

5048var source0 = MarkedSource(sourceText, options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 5049var source1 = MarkedSource(sourceText, options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9)); 5050var source2 = MarkedSource(sourceText, options: CSharpParseOptions.Default.WithLanguageVersion(LanguageVersion.CSharp9));

353languageVersion: LanguageVersion.CSharp8, 357yield return parseOptions.WithLanguageVersion(LanguageVersion.CSharp9); 358yield return parseOptions.WithLanguageVersion(LanguageVersion.Latest); 359yield return parseOptions.WithLanguageVersion(LanguageVersion.Preview);

911parseOptions: TestOptions.Script.WithLanguageVersion(LanguageVersion.Preview), 1299parseOptions: new CSharpParseOptions(kind: sourceCodeKind, languageVersion: LanguageVersion.CSharp7_2))); 1309parseOptions: new CSharpParseOptions(kind: sourceCodeKind, languageVersion: LanguageVersion.CSharp7_2)); 1351parseOptions: new CSharpParseOptions(kind: sourceCodeKind, languageVersion: LanguageVersion.CSharp7_2))); 1365parseOptions: new CSharpParseOptions(kind: sourceCodeKind, languageVersion: LanguageVersion.Preview))); 1394CreateCompilationWithMscorlib461(source: source, parseOptions: new CSharpParseOptions(kind: sourceCodeKind, languageVersion: LanguageVersion.CSharp7_2)).VerifyDiagnostics(

82[CombinatorialValues(LanguageVersion.CSharp10, LanguageVersion.CSharp11)] LanguageVersion languageVersion, 164[CombinatorialValues(LanguageVersion.CSharp10, LanguageVersion.CSharp11)] LanguageVersion languageVersionA, 165[CombinatorialValues(LanguageVersion.CSharp10, LanguageVersion.CSharp11)] LanguageVersion languageVersionB, 173bool useUpdatedEscapeRulesA = languageVersionA == LanguageVersion.CSharp11; 182Assert.Equal(languageVersionB == LanguageVersion.CSharp11, comp.SourceModule.UseUpdatedEscapeRules);

13701CreateCompilation(code, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7_3)).VerifyDiagnostics( 13718CreateEmptyCompilation(code, references: WinRtRefs, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7_3)).VerifyDiagnostics( 13744CreateCompilation(code, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7_3)).VerifyDiagnostics( 13770CreateEmptyCompilation(code, references: WinRtRefs, parseOptions: new CSharpParseOptions(LanguageVersion.CSharp7_3)).VerifyDiagnostics(

534var compilation = CreateEmptyCompilation(string.Empty, parseOptions: new CSharpParseOptions().WithLanguageVersion((LanguageVersion)10000)); 606var parseOptions = new CSharpParseOptions(LanguageVersion.Latest);

658[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 687if (languageVersion == LanguageVersion.CSharp13) 828[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 847if (languageVersion == LanguageVersion.CSharp13) 929Assert.Equal(languageVersion > LanguageVersion.CSharp13, ((SourcePropertySymbol)actualProperties[0]).UsesFieldKeyword); 930Assert.Equal(languageVersion > LanguageVersion.CSharp13, ((SourcePropertySymbol)actualProperties[1]).UsesFieldKeyword); 938[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion, bool useInit) 956if (languageVersion == LanguageVersion.CSharp13) 1030Assert.Equal(languageVersion > LanguageVersion.CSharp13, ((SourcePropertySymbol)actualProperties[0]).UsesFieldKeyword); 1031Assert.Equal(languageVersion > LanguageVersion.CSharp13, ((SourcePropertySymbol)actualProperties[1]).UsesFieldKeyword); 1040[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 1070if (languageVersion == LanguageVersion.CSharp13) 1137[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 1167if (languageVersion == LanguageVersion.CSharp13) 1456[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion, 8319[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion, 8352if (languageVersion == LanguageVersion.CSharp13) 8471[CombinatorialValues(LanguageVersion.CSharp12, LanguageVersion.CSharp13)] LanguageVersion languageVersion, 8498case (LanguageVersion.CSharp12, false): 8519case (LanguageVersion.CSharp12, true): 8534case (LanguageVersion.CSharp13, false): 8543case (LanguageVersion.CSharp13, true): 8561[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion, 8583if (languageVersion == LanguageVersion.CSharp13) 8636[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion, 8658if (languageVersion == LanguageVersion.CSharp13) 10163[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 10189if (languageVersion == LanguageVersion.CSharp13) 10267[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion) 10292if (languageVersion == LanguageVersion.CSharp13) 10334if (languageVersion == LanguageVersion.CSharp13) 10349if (languageVersion == LanguageVersion.CSharp13) 10364[CombinatorialValues(LanguageVersion.CSharp13, LanguageVersionFacts.CSharpNext)] LanguageVersion languageVersion)