17public interface IArrayTypeSymbol : ITypeSymbol

16public interface IDynamicTypeSymbol : ITypeSymbol

14public interface IFunctionPointerTypeSymbol : ITypeSymbol

20public interface INamedTypeSymbol : ITypeSymbol

18public interface IPointerTypeSymbol : ITypeSymbol

16public interface ITypeParameterSymbol : ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

12internal abstract class TypeSymbol : NamespaceOrTypeSymbol, ISymbol, ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

23Implements ITypeSymbol, ITypeSymbolInternal

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

21: CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol

111public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes) => IsType(type, wellKnownTypes, out var _); 113public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes, [NotNullWhen(true)] out WellKnownTypeData.WellKnownType? match) 128public bool Implements(ITypeSymbol type, WellKnownTypeData.WellKnownType[] interfaceWellKnownTypes) 141public static bool Implements(ITypeSymbol? type, ITypeSymbol interfaceType)

381var typeSymbol = _compilation.GetBestTypeByMetadataName(type.FullName) as ITypeSymbol;

74ITypeSymbol typeSymbol = typeParseInfo.TypeSymbol;

26private readonly Dictionary<ITypeSymbol, TypeSpec> _createdTypeSpecs = new(SymbolEqualityComparer.Default); 64private bool IsValidRootConfigType([NotNullWhen(true)] ITypeSymbol? type) 110ITypeSymbol typeSymbol = typeParseInfo.TypeSymbol; 145private void EnqueueTargetTypeForRootInvocation(ITypeSymbol? typeSymbol, MethodsToGen overload, BinderInvocation invocation) 159private TypeRef EnqueueTransitiveType(TypeParseInfo containingTypeParseInfo, ITypeSymbol memberTypeSymbol, DiagnosticDescriptor diagDescriptor, string? memberName = null) 175ITypeSymbol type = typeParseInfo.TypeSymbol; 178if (IsNullable(type, out ITypeSymbol? underlyingType)) 219private static bool IsNullable(ITypeSymbol type, [NotNullWhen(true)] out ITypeSymbol? underlyingType) 233private bool IsParsableFromString(ITypeSymbol type, out StringParsableTypeKind typeKind) 367if (IsCandidateDictionary(type, out ITypeSymbol? keyType, out ITypeSymbol? elementType)) 381private TypeSpec CreateDictionarySpec(TypeParseInfo typeParseInfo, ITypeSymbol keyTypeSymbol, ITypeSymbol elementTypeSymbol) 447if (!TryGetElementType(type, out ITypeSymbol? elementType)) 525private bool IsAssignableTo(ITypeSymbol source, ITypeSymbol dest) 531private bool IsUnsupportedType(ITypeSymbol type, int recursionDepth = 0) 566if (IsCandidateDictionary(collectionType, out ITypeSymbol? keyType, out ITypeSymbol? elementType)) 753private bool TryGetElementType(INamedTypeSymbol type, [NotNullWhen(true)] out ITypeSymbol? elementType) 767private bool IsCandidateDictionary(INamedTypeSymbol type, [NotNullWhen(true)] out ITypeSymbol? keyType, [NotNullWhen(true)] out ITypeSymbol? elementType) 790private bool IsCollection(ITypeSymbol type) => 832private static bool ContainsGenericParameters(ITypeSymbol type) 839foreach (ITypeSymbol typeArg in genericType.TypeArguments) 854private static bool HasAddMethod(INamedTypeSymbol type, ITypeSymbol element) 870private static bool HasAddMethod(INamedTypeSymbol type, ITypeSymbol key, ITypeSymbol element) 887private static bool IsEnum(ITypeSymbol type) => type is INamedTypeSymbol { EnumUnderlyingType: INamedTypeSymbol { } }; 937foreach (var typeSymbol in _createdTypeSpecs.Keys)

87ITypeSymbol? type = ResolveType(instanceArg.Value)?.WithNullableAnnotation(NullableAnnotation.None); 103static ITypeSymbol? ResolveType(IOperation conversionOperation) => 146ITypeSymbol? type; 196ITypeSymbol? type; 246ITypeSymbol effectiveType = IsNullable(type, out ITypeSymbol? underlyingType) ? underlyingType : type;

17public ITypeSymbol TypeSymbol { get; private init; } 27public static TypeParseInfo Create(ITypeSymbol typeSymbol, MethodsToGen overload, BinderInvocation invocation, ContainingTypeDiagnosticInfo? containingTypeDiagInfo = null) => 37public TypeParseInfo ToTransitiveTypeParseInfo(ITypeSymbol memberType, DiagnosticDescriptor? diagDescriptor = null, string? memberName = null) 92public static string ToIdentifierCompatibleSubstring(this ITypeSymbol type) 112if (namedType.GetAllTypeArgumentsInScope() is List<ITypeSymbol> typeArgsInScope) 114foreach (ITypeSymbol genericArg in typeArgsInScope) 123public static (string DisplayString, string FullName) GetTypeNames(this ITypeSymbol type) 131public static string GetFullName(this ITypeSymbol type) => GetTypeNames(type).FullName;

28ITypeSymbol? typeSymbol = targetMethod.TypeArguments[0].WithNullableAnnotation(NullableAnnotation.None); 42private void ParseBindInvocation_OptionsBuilderExt(BinderInvocation invocation, ITypeSymbol? type) 70private void ParseBindConfigurationInvocation(BinderInvocation invocation, ITypeSymbol? type)

41ITypeSymbol? secondParamType = @params[1].Type; 42ITypeSymbol? thirdParamType = @params[2].Type; 72ITypeSymbol? typeSymbol = targetMethod.TypeArguments[0].WithNullableAnnotation(NullableAnnotation.None);

11protected CollectionSpec(ITypeSymbol type) : base(type) { } 19protected CollectionWithCtorInitSpec(ITypeSymbol type) : base(type) { } 30public ArraySpec(ITypeSymbol type) : base(type) { } 35public EnumerableSpec(ITypeSymbol type) : base(type) { }

10public SimpleTypeSpec(ITypeSymbol type) : base(type) { } 15public ConfigurationSectionSpec(ITypeSymbol type) : base(type) { } 20public ParsableFromStringSpec(ITypeSymbol type) : base(type) { }

13public TypeSpec(ITypeSymbol type) 43protected ComplexTypeSpec(ITypeSymbol type) : base(type) { } 48public NullableSpec(ITypeSymbol type, TypeRef underlyingTypeRef) : base(type) => 54public UnsupportedTypeSpec(ITypeSymbol type) : base(type) { }

13public static List<ITypeSymbol>? GetAllTypeArgumentsInScope(this INamedTypeSymbol type) 20List<ITypeSymbol>? args = null; 38public static string GetFullyQualifiedName(this ITypeSymbol type) => type.ToDisplayString(SymbolDisplayFormat.FullyQualifiedFormat);

16public TypeRef(ITypeSymbol type)

89public static bool IsImplementationOfInterfaceMethod(this IMethodSymbol method, ITypeSymbol? typeArgument, [NotNullWhen(returnValue: true)] INamedTypeSymbol? interfaceType, string interfaceMethodName)

29public static ITypeSymbol? GetReceiverType(this IInvocationOperation invocation, Compilation compilation, bool beforeConversion, CancellationToken cancellationToken) 55private static ITypeSymbol? GetReceiverType(SyntaxNode receiverSyntax, Compilation compilation, CancellationToken cancellationToken) 391public static ITypeSymbol? GetPatternType(this IPatternOperation pattern) 467public static ITypeSymbol? GetThrownExceptionType(this IThrowOperation operation)

110var type1 = parameter1.Type.OriginalDefinition; 111var type2 = parameter2.Type.OriginalDefinition; 216public static ITypeSymbol? GetMemberOrLocalOrParameterType(this ISymbol symbol) 292public static bool HasDerivedTypeAttribute(this ITypeSymbol symbol, [NotNullWhen(returnValue: true)] INamedTypeSymbol? attribute) 377ITypeSymbol type => type.IsReadOnly,

18public static bool IsPrimitiveType(this ITypeSymbol type) 39public static bool Inherits([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? possibleBase) 64public static bool DerivesFrom([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol, [NotNullWhen(returnValue: true)] ITypeSymbol? candidateBaseType, bool baseTypesOnly = false, bool checkTypeParameterConstraints = true) 73var allInterfaces = symbol.AllInterfaces.OfType<ITypeSymbol>(); 89foreach (var constraintType in typeParameterSymbol.ConstraintTypes) 115public static bool IsDisposable(this ITypeSymbol type, 138static bool IsInterfaceOrImplementsInterface(ITypeSymbol type, INamedTypeSymbol? interfaceType) 248public static bool HasValueCopySemantics(this ITypeSymbol typeSymbol) 251public static bool CanHoldNullValue([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 256public static bool IsNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 259public static bool IsReferenceTypeOrNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 262public static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 265public static ITypeSymbol? GetUnderlyingValueTupleTypeOrThis(this ITypeSymbol? typeSymbol)

14/// <see cref="IComparer{T}"/> for <see cref="ITypeSymbol"/>s sorted by display strings. 17internal sealed class SymbolByDisplayStringComparer : IComparer<ITypeSymbol> 50public int Compare([AllowNull] ITypeSymbol x, [AllowNull] ITypeSymbol y)

203internal bool IsTaskOfType([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol, bool> typeArgumentPredicate)

137public static string GenerateNameFromType(this SemanticModel semanticModel, ITypeSymbol type, ISyntaxFacts syntaxFacts, bool capitalize) 168private static bool ShouldPluralize(this SemanticModel semanticModel, ITypeSymbol type) 183ImmutableArray<ITypeSymbol> typeArguments, 218public static ITypeSymbol GetType(

362SymbolCategory.Type => symbol is ITypeSymbol type && type.TypeKind == (TypeKind)_kind,

12ITypeSymbol? elementType) 18public readonly ITypeSymbol? ElementType = elementType;

118private static bool IsFloatingPoint([NotNullWhen(returnValue: true)] ITypeSymbol? type)

40using var propertyTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

32foreach (var typeSymbol in elementTypeResolution.OfType<ITypeSymbol>())

28using var parameterTypes = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 45var returnTypeSymbol = (ITypeSymbol?)returnType.GetAnySymbol();

44visitor.WriteSymbolKeyArray(ImmutableArray<ITypeSymbol>.Empty); 72using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

56using var parameterTypes = reader.ReadSymbolKeyArray<IFunctionPointerTypeSymbol, ITypeSymbol>( 76if (returnType.GetAnySymbol() is not ITypeSymbol returnTypeSymbol)

44foreach (var receiverType in receiverTypeResolution.OfType<ITypeSymbol>()) 70using var typeArguments = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 223_ = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 246var returnType = (ITypeSymbol?)reader.ReadSymbolKey(contextualSymbol: method.ReturnType, out _).GetAnySymbol();

48using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>( 95ITypeSymbol[] typeArgumentsArray, 146ITypeSymbol[] typeArguments, 200private static INamedTypeSymbol Construct(INamedTypeSymbol type, bool isUnboundGenericType, ITypeSymbol[] typeArguments)

34foreach (var typeSymbol in pointedAtTypeResolution.OfType<ITypeSymbol>())

71_ = reader.ReadSymbolKeyArray<IPropertySymbol, ITypeSymbol>(

383Func<TOwningSymbol, int, ITypeSymbol?> getContextualType, 387using var originalParameterTypes = this.ReadSymbolKeyArray<TOwningSymbol, ITypeSymbol>(owningSymbol, getContextualType, out _);

96using var elementTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

102protected abstract TConversion ClassifyConversion(SemanticModel model, TExpressionSyntax expression, ITypeSymbol targetType); 103protected abstract TConversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType); 105protected abstract bool ConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType); 106protected abstract bool IsReferenceConversion(Compilation model, ITypeSymbol sourceType, ITypeSymbol targetType); 112SemanticModel model, TForEachStatementSyntax forEach, out IMethodSymbol getEnumeratorMethod, out ITypeSymbol elementType, out ImmutableArray<ILocalSymbol> localVariables); 305private bool ImplicitConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType) 740var previousOriginalType = this.OriginalSemanticModel.GetTypeInfo(previousOriginalNode).Type; 741var previousReplacedType = this.SpeculativeSemanticModel.GetTypeInfo(previousReplacedNode).Type; 780GetForEachSymbols(this.OriginalSemanticModel, forEachStatement, out var originalGetEnumerator, out var originalElementType, out var originalLocalVariables); 781GetForEachSymbols(this.SpeculativeSemanticModel, newForEachStatement, out var newGetEnumerator, out var newElementType, out var newLocalVariables); 826var expressionType = this.SpeculativeSemanticModel.GetTypeInfo(newForEachStatementExpression, CancellationToken).ConvertedType; 849var originalThrowExpressionType = this.OriginalSemanticModel.GetTypeInfo(originalThrowExpression).Type; 851var newThrowExpressionType = this.SpeculativeSemanticModel.GetTypeInfo(newThrowExpression).Type; 961var originalTargetType = this.OriginalSemanticModel.GetTypeInfo(originalLeft).Type; 964var newTargetType = this.SpeculativeSemanticModel.GetTypeInfo(newLeft).Type; 997var newReceiverType = newReceiver != null 1036var receiverType = semanticModel.GetTypeInfo(receiver).Type; 1196ITypeSymbol originalTargetType, 1198ITypeSymbol newTargetType, 1213var originalConvertedTypeSymbol = this.OriginalSemanticModel.GetTypeInfo(originalExpression).ConvertedType; 1219var newConvertedTypeSymbol = this.SpeculativeSemanticModel.GetTypeInfo(newExpression).ConvertedType;

39public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this INamedTypeSymbol? symbol) 669public static INamedTypeSymbol TryConstruct(this INamedTypeSymbol type, ITypeSymbol[] typeArguments)

226=> symbol is ITypeSymbol { TypeKind: TypeKind.Error }; 229=> symbol is ITypeSymbol { TypeKind: TypeKind.Module }; 232=> symbol is ITypeSymbol { TypeKind: TypeKind.Interface }; 238=> symbol is ITypeSymbol { IsTupleType: true }; 308=> symbol is ITypeSymbol { TypeKind: TypeKind.Delegate }; 339public static ITypeSymbol? GetMemberType(this ISymbol? symbol) 452public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 460public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 462var results = ArrayBuilder<ITypeSymbol>.GetInstance(); 476=> (symbol as ITypeSymbol)?.IsAttribute() == true; 490public static ITypeSymbol ConvertToType( 495if (symbol is ITypeSymbol type) 564public static Accessibility ComputeResultantAccessibility(this ISymbol? symbol, ITypeSymbol finalDestination) 623public static ITypeSymbol? GetSymbolType(this ISymbol? symbol) 630IAliasSymbol aliasSymbol => aliasSymbol.Target as ITypeSymbol, 631_ => symbol as ITypeSymbol, 642ITypeSymbol? typeSymbol = null; 646typeSymbol = symbol as ITypeSymbol; 675var returnType = getAwaiter.ReturnType; 709var returnType = getEnumerator.ReturnType; 749var returnType = getAsyncEnumerator.ReturnType;

21ITypeSymbol? throughType = null) 43ITypeSymbol? throughType = null) 55ITypeSymbol? throughType = null) 68ITypeSymbol? throughType, 87ITypeSymbol? throughType, 191foreach (var typeArg in type.TypeArguments) 251ITypeSymbol? throughType, 336ITypeSymbol? throughType, 376var originalThroughType = throughType?.OriginalDefinition;

11ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank); 12ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType); 13ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments);

17private static INamedTypeSymbol? GetNamedTypeSymbol(ITypeSymbol type)

15private sealed class AnonymousTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 17public override ITypeSymbol DefaultVisit(ISymbol node) 20public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 23public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 25var elementType = symbol.ElementType.Accept(this); 34public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

61foreach (var child in symbol.GetAllTypeArguments()) 90foreach (var constraint in symbol.ConstraintTypes)

13public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 16public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 19public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

26public static bool IsIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 29public static bool IsSignedIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 32public static bool CanAddNullCheck([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 43public static ImmutableArray<INamedTypeSymbol> GetAllInterfacesIncludingThis(this ITypeSymbol type) 51public static bool IsAbstractClass([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 54public static bool IsSystemVoid([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 57public static bool IsNullable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 60public static bool IsNonNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 64[NotNullWhen(true)] this ITypeSymbol? symbol, 65[NotNullWhen(true)] out ITypeSymbol? underlyingType) 77public static bool IsModuleType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 80public static bool IsInterfaceType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 83public static bool IsDelegateType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 86public static bool IsFunctionPointerType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 89public static bool IsStructType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 96this ITypeSymbol type, 110public static IEnumerable<ITypeSymbol> GetBaseTypesAndThis(this ITypeSymbol? type) 112var current = type; 120public static IEnumerable<INamedTypeSymbol> GetBaseTypes(this ITypeSymbol? type) 130public static IEnumerable<ITypeSymbol> GetContainingTypesAndThis(this ITypeSymbol? type) 132var current = type; 140public static IEnumerable<INamedTypeSymbol> GetContainingTypes(this ITypeSymbol type) 153this ITypeSymbol type, ITypeSymbol baseType, bool includeInterfaces) 166this ITypeSymbol type, ITypeSymbol baseType) 174this ITypeSymbol type, ITypeSymbol baseType) 176var originalBaseType = baseType.OriginalDefinition; 184IEnumerable<ITypeSymbol> baseTypes = (baseType.TypeKind == TypeKind.Interface) ? type.AllInterfaces : type.GetBaseTypes(); 191this ITypeSymbol type, ITypeSymbol baseType) 193var originalBaseType = baseType.OriginalDefinition; 213this ITypeSymbol type, ITypeSymbol interfaceType) 215var originalInterfaceType = interfaceType.OriginalDefinition; 220this ITypeSymbol type, ITypeSymbol interfaceType) 225public static bool IsAttribute(this ITypeSymbol symbol) 243public static bool IsFormattableStringOrIFormattable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 252this ITypeSymbol typeSymbol, bool allowDelegateAndEnumConstraints = false) 280public static bool IsNumericType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 306public static Accessibility DetermineMinimalAccessibility(this ITypeSymbol typeSymbol) 309public static bool ContainsAnonymousType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 325foreach (var typeArg in type.GetAllTypeArguments()) 334public static string CreateParameterName(this ITypeSymbol type, bool capitalize = false) 355private static string GetParameterName(ITypeSymbol? type) 368public static bool IsSpecialType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 399public static bool CanSupportCollectionInitializer(this ITypeSymbol typeSymbol, ISymbol within) 410public static INamedTypeSymbol? GetDelegateType(this ITypeSymbol? typeSymbol, Compilation compilation) 417var typeArgument = ((INamedTypeSymbol)typeSymbol).TypeArguments[0]; 430public static IEnumerable<T> GetAccessibleMembersInBaseTypes<T>(this ITypeSymbol containingType, ISymbol within) where T : class, ISymbol 439public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, ISymbol within) where T : class, ISymbol 449public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, string memberName, ISymbol within) where T : class, ISymbol 459public static bool? AreMoreSpecificThan(this IList<ITypeSymbol> t1, IList<ITypeSymbol> t2) 494public static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, ISymbol within) where T : class, ISymbol 504private static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, string memberName, ISymbol within) where T : class, ISymbol 514private static bool? IsMoreSpecificThan(this ITypeSymbol t1, ITypeSymbol t2) 592public static bool IsOrDerivesFromExceptionType([NotNullWhen(returnValue: true)] this ITypeSymbol? type, Compilation compilation) 599foreach (var baseType in type.GetBaseTypesAndThis()) 610foreach (var constraint in ((ITypeParameterSymbol)type).ConstraintTypes) 625public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type) 628public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type, [NotNullWhen(true)] out INamedTypeSymbol? enumType) 640public static bool? IsMutableValueType(this ITypeSymbol type) 642if (type.IsNullable(out var underlyingType)) 721static bool IsWellKnownImmutableValueType(ITypeSymbol type) 754public static bool IsDisposable([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? iDisposableType) 759public static ITypeSymbol WithNullableAnnotationFrom(this ITypeSymbol type, ITypeSymbol symbolForNullableAnnotation) 763public static ITypeSymbol? RemoveNullableIfPresent(this ITypeSymbol? symbol) 765if (symbol.IsNullable(out var underlyingType)) 773public static bool IsSpanOrReadOnlySpan([NotNullWhen(true)] this ITypeSymbol? type) 776public static bool IsSpan([NotNullWhen(true)] this ITypeSymbol? type) 792public static bool IsInlineArray([NotNullWhen(true)] this ITypeSymbol? type) 797public static ITypeSymbol? RemoveUnavailableTypeParameters( 798this ITypeSymbol? type, 806private static ITypeSymbol? RemoveUnavailableTypeParameters( 807this ITypeSymbol? type, 815public static ITypeSymbol? RemoveAnonymousTypes( 816this ITypeSymbol? type, 823public static ITypeSymbol? RemoveUnnamedErrorTypes( 824this ITypeSymbol? type, 831this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 837this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 843this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result, bool onlyMethodTypeParameters) 852public static IList<ITypeParameterSymbol> GetReferencedTypeParameters(this ITypeSymbol? type) 860public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 861this ITypeSymbol? type, 864where TType1 : ITypeSymbol 865where TType2 : ITypeSymbol 871public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 872this ITypeSymbol? type, 875where TType1 : ITypeSymbol 876where TType2 : ITypeSymbol

54foreach (var arg in symbol.TypeArguments)

16private sealed class SubstituteTypesVisitor<TType1, TType2> : SymbolVisitor<ITypeSymbol> 17where TType1 : ITypeSymbol 18where TType2 : ITypeSymbol 32public override ITypeSymbol DefaultVisit(ISymbol node) 35private ITypeSymbol VisitType(ITypeSymbol symbol) 45public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 48public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol) 51public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 58public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 60var mapped = VisitType(symbol); 79var updatedContainingType = symbol.ContainingType?.Accept(this); 96public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 98var mapped = VisitType(symbol); 104var elementType = symbol.ElementType.Accept(this); 113public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 115var mapped = VisitType(symbol); 121var pointedAtType = symbol.PointedAtType.Accept(this);

18private sealed class UnavailableTypeParameterRemover(Compilation compilation, ISet<string> availableTypeParameterNames) : SymbolVisitor<ITypeSymbol> 20public override ITypeSymbol DefaultVisit(ISymbol node) 23public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 26public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 28var elementType = symbol.ElementType.Accept(this); 37public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 43public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

17private sealed class UnnamedErrorTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 19public override ITypeSymbol DefaultVisit(ISymbol node) 22public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 25public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 27var elementType = symbol.ElementType.Accept(this); 36public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 58public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 60var elementType = symbol.PointedAtType.Accept(this); 69public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

27private IEqualityComparer<ITypeSymbol> SignatureTypeEquivalenceComparer => _symbolEquivalenceComparer.SignatureTypeEquivalenceComparer;

198=> symbol.IsKind(SymbolKind.NamedType, out ITypeSymbol? typeSymbol) && typeSymbol.SpecialType == SpecialType.System_Object;

95private bool NullableAnnotationsEquivalent(ITypeSymbol x, ITypeSymbol y) 492private bool TypeArgumentsAreEquivalent(ImmutableArray<ITypeSymbol> xTypeArguments, ImmutableArray<ITypeSymbol> yTypeArguments, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies)

50return Hash.Combine(GetNullableAnnotationsHashCode((ITypeSymbol)x), Hash.Combine(typeof(IDynamicTypeSymbol), currentHash)); 56private int GetNullableAnnotationsHashCode(ITypeSymbol type)

13internal sealed class SignatureTypeSymbolEquivalenceComparer(SymbolEquivalenceComparer symbolEquivalenceComparer) : IEqualityComparer<ITypeSymbol?> 15public bool Equals(ITypeSymbol? x, ITypeSymbol? y) 18public bool Equals(ITypeSymbol? x, ITypeSymbol? y, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies) 21public int GetHashCode(ITypeSymbol? x)

112public TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, CodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode 139public abstract TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, TCodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode;

83public static bool IsSpecialType([NotNullWhen(true)] ITypeSymbol? type, SpecialType specialType) 133public static bool TypesMatch(ITypeSymbol? type, object value)

30DeclarationModifiers modifiers, ITypeSymbol type, 47ITypeSymbol type, 79ITypeSymbol type, RefKind refKind, ImmutableArray<IPropertySymbol> explicitInterfaceImplementations, string name, 106ITypeSymbol type, string name, 152ITypeSymbol? returnType, 174ITypeSymbol? returnType, 195ITypeSymbol returnType, 220ITypeSymbol toType, 248ITypeSymbol toType, 264public static IParameterSymbol CreateParameterSymbol(ITypeSymbol type, string name) 267public static IParameterSymbol CreateParameterSymbol(RefKind refKind, ITypeSymbol type, string name) 277ImmutableArray<AttributeData> attributes, RefKind refKind, bool isParams, ITypeSymbol type, string name, bool isOptional = false, bool hasDefaultValue = false, object? defaultValue = null) 290ITypeSymbol? type = null, 331ImmutableArray<ITypeSymbol> constraintTypes, 347public static IPointerTypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 353public static IArrayTypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank = 1, NullableAnnotation nullableAnnotation = NullableAnnotation.None) 463ITypeSymbol returnType, 520ITypeSymbol? returnType = null,

118TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, CodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode;

10/// Annotation placed on <see cref="ITypeSymbol"/>s that the <see cref="SyntaxGenerator"/> converts to a node. This

41public abstract ITypeSymbol ReturnType { get; } 42public abstract ImmutableArray<ITypeSymbol> TypeArguments { get; } 50public abstract ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter); 51public abstract IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType); 61public virtual ITypeSymbol ReceiverType => this.ContainingType; 112public IMethodSymbol Construct(params ITypeSymbol[] typeArguments) 115public IMethodSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<CodeAnalysis.NullableAnnotation> typeArgumentNullableAnnotations)

53public INamedTypeSymbol Construct(params ITypeSymbol[] typeArguments) 64public INamedTypeSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<NullableAnnotation> typeArgumentNullableAnnotations) 84public abstract ImmutableArray<ITypeSymbol> TypeArguments { get; }

10internal sealed class CodeGenerationArrayTypeSymbol(ITypeSymbol elementType, int rank, NullableAnnotation nullableAnnotation) : CodeGenerationTypeSymbol(null, null, default, Accessibility.NotApplicable, default, string.Empty, SpecialType.None, nullableAnnotation), IArrayTypeSymbol 12public ITypeSymbol ElementType { get; } = elementType;

14private readonly ImmutableArray<ITypeSymbol> _typeArguments; 18ImmutableArray<ITypeSymbol> typeArguments) 47public override ITypeSymbol ReturnType 56public override ImmutableArray<ITypeSymbol> TypeArguments => _typeArguments; 84public override ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter) 87public override IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType)

16private readonly ImmutableArray<ITypeSymbol> _typeArguments; 20ImmutableArray<ITypeSymbol> typeArguments, 31public override ImmutableArray<ITypeSymbol> TypeArguments => _typeArguments;

15ITypeSymbol toType,

16ITypeSymbol type, 23public ITypeSymbol Type { get; } = type;

17ITypeSymbol type, 22public ITypeSymbol Type { get; } = type;

16public override ITypeSymbol ReturnType { get; } 27ITypeSymbol returnType, 95public override ImmutableArray<ITypeSymbol> TypeArguments 96=> this.TypeParameters.As<ITypeSymbol>(); 109public override ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter) 112public override IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType)

122public override ImmutableArray<ITypeSymbol> TypeArguments 126return this.TypeParameters.As<ITypeSymbol>();

15ITypeSymbol returnType,

17ITypeSymbol type, 27public ITypeSymbol Type { get; } = type;

9internal sealed class CodeGenerationPointerTypeSymbol(ITypeSymbol pointedAtType) : CodeGenerationTypeSymbol(null, null, default, Accessibility.NotApplicable, default, string.Empty, SpecialType.None, NullableAnnotation.None), IPointerTypeSymbol 11public ITypeSymbol PointedAtType { get; } = pointedAtType;

17ITypeSymbol type, 26public ITypeSymbol Type { get; } = type;

17ImmutableArray<ITypeSymbol> constraintTypes, 27public ImmutableArray<ITypeSymbol> ConstraintTypes { get; internal set; } = constraintTypes;

51public static ImmutableArray<ITypeSymbol> TupleElementTypes => default; 55public new ITypeSymbol OriginalDefinition => this; 75bool ITypeSymbol.IsRefLikeType => false; 77bool ITypeSymbol.IsUnmanagedType => throw new System.NotImplementedException(); 79bool ITypeSymbol.IsReadOnly => Modifiers.IsReadOnly; 85public ITypeSymbol WithNullableAnnotation(NullableAnnotation nullableAnnotation)

15public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 18public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 21public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

97public ImmutableArray<ITypeSymbol> InferredTypes { get; } = document.GetRequiredLanguageService<ITypeInferenceService>().InferTypes(semanticModel, position, cancellationToken);

54var mapping = new Dictionary<ITypeSymbol, ITypeSymbol>(SymbolEqualityComparer.Default); 108var mapping = new Dictionary<ITypeSymbol, ITypeSymbol>(SymbolEqualityComparer.Default);

15public static ImmutableArray<ITypeSymbol> InferTypes(this ITypeInferenceService service, SemanticModel semanticModel, SyntaxNode expression, CancellationToken cancellationToken) 18public static ImmutableArray<ITypeSymbol> InferTypes(this ITypeInferenceService service, SemanticModel semanticModel, int position, CancellationToken cancellationToken) 47private static INamedTypeSymbol? GetFirstDelegateType(SemanticModel semanticModel, ImmutableArray<ITypeSymbol> types) 53public static ITypeSymbol? InferType( 65public static ITypeSymbol? InferType( 83public static ITypeSymbol? InferType( 95public static ITypeSymbol? InferType(

22public bool IsTaskLike([NotNullWhen(true)] ITypeSymbol? returnType)

70ITypeSymbol type) 80private static ITypeSymbol GetType(Compilation compilation, ISymbol symbol) 122var throughMemberType = throughMember.GetMemberType(); 351var parameterType = parameter.Type;

231var memberType = member.GetSymbolType(); 360public static string? GetLocalName(this ITypeSymbol containingType, string? fallback = "v") 382private static bool ImplementsIEquatable(ITypeSymbol memberType, INamedTypeSymbol iequatableType) 395private static bool ShouldUseEqualityOperator(ITypeSymbol typeSymbol) 399if (typeSymbol.IsNullable(out var underlyingType))

455var type = variableExpression.Type;

105protected static IMethodSymbol? FindDisposeMethod(Compilation compilation, ITypeSymbol? type, bool isAsync) 130var currentType = type; 146var currentType = type;

47CommonConversion ClassifyConversion(SemanticModel semanticModel, SyntaxNode expression, ITypeSymbol destination);

86/// Produces an appropriate TypeSyntax for the given <see cref="ITypeSymbol"/>. The <paramref name="typeContext"/> 100public abstract SyntaxNode Type(ITypeSymbol typeSymbol, bool typeContext); 130public abstract SyntaxNode DefaultExpression(ITypeSymbol type); 135public SyntaxNode CastExpression(ITypeSymbol type, SyntaxNode expression) 138public SyntaxNode TypeExpression(ITypeSymbol typeSymbol) 141public abstract SyntaxNode TypeExpression(ITypeSymbol typeSymbol, RefKind refKind); 155public SyntaxNode ConvertExpression(ITypeSymbol type, SyntaxNode expression)

36protected abstract bool IsUnusableType(ITypeSymbol arg); 81protected static IEnumerable<TypeInferenceInfo> CreateResult(ITypeSymbol type) 84protected static IEnumerable<ITypeSymbol> ExpandParamsParameter(IParameterSymbol parameterSymbol) 86var result = new List<ITypeSymbol> 108var elementType = parameters.ElementAtOrDefault(0);

15private static ImmutableArray<ITypeSymbol> InferTypeBasedOnNameIfEmpty( 16SemanticModel semanticModel, ImmutableArray<ITypeSymbol> result, string? nameOpt) 41private static ImmutableArray<ITypeSymbol> InferTypeBasedOnName( 79public ImmutableArray<ITypeSymbol> InferTypes( 90public ImmutableArray<ITypeSymbol> InferTypes(

27ImmutableArray<ITypeSymbol> InferTypes(SemanticModel semanticModel, SyntaxNode expression, string? nameOpt, CancellationToken cancellationToken); 28ImmutableArray<ITypeSymbol> InferTypes(SemanticModel semanticModel, int position, string? nameOpt, CancellationToken cancellationToken); 34internal readonly record struct TypeInferenceInfo(ITypeSymbol InferredType, bool IsParams) 36public TypeInferenceInfo(ITypeSymbol type) : this(type, IsParams: false)

89ITypeSymbol? typeSymbol = symbol is ITypeSymbol ? symbol as ITypeSymbol : null;

17public static IEnumerable<ISymbol> GetDynamicallyAccessedMembers(this ITypeSymbol typeDefinition, DynamicallyAccessedMemberTypes memberTypes, bool declaredOnly = false) 82foreach (var nested in typeDefinition.ApplyIncludeInherited(t => t.GetNestedTypesOnType(filter: null, bindingFlags: BindingFlags.NonPublic), withInherited)) 95foreach (var nested in typeDefinition.ApplyIncludeInherited(t => t.GetNestedTypesOnType(filter: null, bindingFlags: BindingFlags.Public), withInherited)) 133foreach (var i in typeDefinition.GetAllInterfaceImplementations(declaredOnly)) 137public static IEnumerable<IMethodSymbol> GetConstructorsOnType(this ITypeSymbol type, Func<IMethodSymbol, bool>? filter, BindingFlags? bindingFlags = null) 164public static IEnumerable<IMethodSymbol> GetMethodsOnTypeHierarchy(this ITypeSymbol thisType, Func<IMethodSymbol, bool>? filter, BindingFlags? bindingFlags = null) 166ITypeSymbol? type = thisType; 209public static IEnumerable<IFieldSymbol> GetFieldsOnTypeHierarchy(this ITypeSymbol thisType, Func<IFieldSymbol, bool>? filter, BindingFlags? bindingFlags = BindingFlags.Default) 211ITypeSymbol? type = thisType; 250public static IEnumerable<ITypeSymbol> GetNestedTypesOnType(this ITypeSymbol type, Func<ITypeSymbol, bool>? filter, BindingFlags? bindingFlags = BindingFlags.Default) 252foreach (var nestedType in type.GetTypeMembers().OfType<ITypeSymbol>()) 273public static IEnumerable<IPropertySymbol> GetPropertiesOnTypeHierarchy(this ITypeSymbol thisType, Func<IPropertySymbol, bool>? filter, BindingFlags? bindingFlags = BindingFlags.Default) 275ITypeSymbol? type = thisType; 328public static IEnumerable<IEventSymbol> GetEventsOnTypeHierarchy(this ITypeSymbol thisType, Func<IEventSymbol, bool>? filter, BindingFlags? bindingFlags = BindingFlags.Default) 330ITypeSymbol? type = thisType; 386public static IEnumerable<ITypeSymbol> GetAllInterfaceImplementations(this ITypeSymbol thisType, bool declaredOnly) 388ITypeSymbol? type = thisType; 395ITypeSymbol? interfaceType = i; 399foreach (var innerInterface in interfaceType.GetAllInterfaceImplementations(declaredOnly: true)) 415public static void GetAllOnType(this ITypeSymbol type, bool declaredOnly, List<ISymbol> members) => GetAllOnType(type, declaredOnly, members, new HashSet<ITypeSymbol>(SymbolEqualityComparer.Default)); 418private static void GetAllOnType(ITypeSymbol type, bool declaredOnly, List<ISymbol> members, HashSet<ITypeSymbol> types) 423foreach (var nestedType in type.GetTypeMembers().OfType<ITypeSymbol>()) 441foreach (var iface in type.GetAllInterfaceImplementations(declaredOnly: true)) 470private static IEnumerable<T> ApplyIncludeInherited<T>(this ITypeSymbol thisType, Func<ITypeSymbol, IEnumerable<T>> selector, bool includeBases) 472ITypeSymbol? type = thisType;

192var typeSymbol = namedTypeSymbol as ITypeSymbol; 198if (symbol is not ITypeSymbol typeSymbol)

19public static bool IsTypeInterestingForDataflow(this ITypeSymbol type, bool isByRef) 39ITypeSymbol? baseType = type; 62public static bool IsTypeOf(this ITypeSymbol symbol, string @namespace, string name) 67public static bool IsTypeOf(this ITypeSymbol symbol, WellKnownType wellKnownType) 72public static WellKnownType? TryGetWellKnownType(this ITypeSymbol symbol)

63if (member is ITypeSymbol) 78if (member.ContainingType is ITypeSymbol containingType && containingType.TryGetAttribute(attributeName, out requiresAttribute))

24private FieldValue(ISymbol fieldSymbol, ITypeSymbol fieldType, DynamicallyAccessedMemberTypes annotations)

218public static DynamicallyAccessedMemberTypes GetTypeAnnotation(ITypeSymbol type) 222ITypeSymbol? baseType = type.BaseType;

68ImmutableArray<ITypeSymbol> typeArguments, 74var typeArgument = typeArguments[i]; 127foreach (var typeArgument in type.TypeArguments) 147foreach (var typeArgument in method.TypeArguments)

19foreach (ITypeSymbol constraintType in TypeParameterSymbol.ConstraintTypes)

82foreach (var arg in symbol.TypeArguments) 140ITypeSymbol? staticType = (valueNode as IValueWithStaticType)?.StaticType?.Type; 141ITypeSymbol? staticTypeDef = staticType?.OriginalDefinition; 147foreach (var constraintType in genericParam.ConstraintTypes) 199ITypeSymbol typeMapGroup = calledMethod.Method.TypeArguments[0]; 249foreach (var nestedType in type.Type.GetNestedTypesOnType(t => t.Name == name, bindingFlags))

58private static bool IsTypeOf(ITypeSymbol type, string fullTypeName)

34internal void GetReflectionAccessDiagnostics(Location location, ITypeSymbol typeSymbol, DynamicallyAccessedMemberTypes requiredMemberTypes, bool declaredOnly = false) 65internal void GetReflectionAccessDiagnosticsForEventsOnTypeHierarchy(Location location, ITypeSymbol typeSymbol, string name, BindingFlags? bindingFlags) 71internal void GetReflectionAccessDiagnosticsForFieldsOnTypeHierarchy(Location location, ITypeSymbol typeSymbol, string name, BindingFlags? bindingFlags) 77internal void GetReflectionAccessDiagnosticsForPropertiesOnTypeHierarchy(Location location, ITypeSymbol typeSymbol, string name, BindingFlags? bindingFlags) 83internal void GetReflectionAccessDiagnosticsForConstructorsOnType(Location location, ITypeSymbol typeSymbol, BindingFlags? bindingFlags, int? parameterCount) 89internal void GetReflectionAccessDiagnosticsForPublicParameterlessConstructor(Location location, ITypeSymbol typeSymbol) 223internal bool TryResolveTypeNameAndMark(string typeName, in DiagnosticContext diagnosticContext, bool needsAssemblyName, [NotNullWhen(true)] out ITypeSymbol? type)

51if (_reflectionAccessAnalyzer.TryResolveTypeNameAndMark(typeName, diagnosticContext, needsAssemblyName, out ITypeSymbol? foundType))

14public static SingleValue? FromTypeSymbol(ITypeSymbol type) 18var underlyingType = (type as INamedTypeSymbol)?.TypeArguments.FirstOrDefault();

29out ITypeSymbol? type, 66ITypeSymbol? ResolveTypeName(IAssemblySymbol assembly, TypeName typeName) 76if (ResolveTypeName(assembly, typeName.GetElementType()) is not ITypeSymbol type) 97private ITypeSymbol? GetSimpleType(IAssemblySymbol assembly, TypeName typeName) 107if (GetSimpleTypeFromModule(typeName, module) is ITypeSymbol type) 114private static ITypeSymbol? GetSimpleTypeFromModule(TypeName typeName, IAssemblySymbol module) 120private ITypeSymbol? GetGenericType(IAssemblySymbol assembly, TypeName typeName) 126ITypeSymbol[] instantiation = new ITypeSymbol[typeArguments.Length]; 129if (ResolveTypeName(assembly, typeArguments[i]) is not ITypeSymbol type)

12public TypeProxy(ITypeSymbol type) => Type = type; 29public readonly ITypeSymbol Type;

49ITypeSymbol coupledType) 349private static void AddCoupledNamedTypesCore(ImmutableHashSet<INamedTypeSymbol>.Builder builder, ITypeSymbol typeOpt, 363foreach (var type in usedType.TypeArguments)

89public static bool IsImplementationOfInterfaceMethod(this IMethodSymbol method, ITypeSymbol? typeArgument, [NotNullWhen(returnValue: true)] INamedTypeSymbol? interfaceType, string interfaceMethodName)

29public static ITypeSymbol? GetReceiverType(this IInvocationOperation invocation, Compilation compilation, bool beforeConversion, CancellationToken cancellationToken) 55private static ITypeSymbol? GetReceiverType(SyntaxNode receiverSyntax, Compilation compilation, CancellationToken cancellationToken) 391public static ITypeSymbol? GetPatternType(this IPatternOperation pattern) 467public static ITypeSymbol? GetThrownExceptionType(this IThrowOperation operation)

110var type1 = parameter1.Type.OriginalDefinition; 111var type2 = parameter2.Type.OriginalDefinition; 216public static ITypeSymbol? GetMemberOrLocalOrParameterType(this ISymbol symbol) 292public static bool HasDerivedTypeAttribute(this ITypeSymbol symbol, [NotNullWhen(returnValue: true)] INamedTypeSymbol? attribute) 377ITypeSymbol type => type.IsReadOnly,

18public static bool IsPrimitiveType(this ITypeSymbol type) 39public static bool Inherits([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? possibleBase) 64public static bool DerivesFrom([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol, [NotNullWhen(returnValue: true)] ITypeSymbol? candidateBaseType, bool baseTypesOnly = false, bool checkTypeParameterConstraints = true) 73var allInterfaces = symbol.AllInterfaces.OfType<ITypeSymbol>(); 89foreach (var constraintType in typeParameterSymbol.ConstraintTypes) 115public static bool IsDisposable(this ITypeSymbol type, 138static bool IsInterfaceOrImplementsInterface(ITypeSymbol type, INamedTypeSymbol? interfaceType) 248public static bool HasValueCopySemantics(this ITypeSymbol typeSymbol) 251public static bool CanHoldNullValue([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 256public static bool IsNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 259public static bool IsReferenceTypeOrNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 262public static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 265public static ITypeSymbol? GetUnderlyingValueTupleTypeOrThis(this ITypeSymbol? typeSymbol)

14/// <see cref="IComparer{T}"/> for <see cref="ITypeSymbol"/>s sorted by display strings. 17internal sealed class SymbolByDisplayStringComparer : IComparer<ITypeSymbol> 50public int Compare([AllowNull] ITypeSymbol x, [AllowNull] ITypeSymbol y)

203internal bool IsTaskOfType([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol, bool> typeArgumentPredicate)

137public static string GenerateNameFromType(this SemanticModel semanticModel, ITypeSymbol type, ISyntaxFacts syntaxFacts, bool capitalize) 168private static bool ShouldPluralize(this SemanticModel semanticModel, ITypeSymbol type) 183ImmutableArray<ITypeSymbol> typeArguments, 218public static ITypeSymbol GetType(

362SymbolCategory.Type => symbol is ITypeSymbol type && type.TypeKind == (TypeKind)_kind,

12ITypeSymbol? elementType) 18public readonly ITypeSymbol? ElementType = elementType;

118private static bool IsFloatingPoint([NotNullWhen(returnValue: true)] ITypeSymbol? type)

40using var propertyTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

32foreach (var typeSymbol in elementTypeResolution.OfType<ITypeSymbol>())

28using var parameterTypes = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 45var returnTypeSymbol = (ITypeSymbol?)returnType.GetAnySymbol();

44visitor.WriteSymbolKeyArray(ImmutableArray<ITypeSymbol>.Empty); 72using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

56using var parameterTypes = reader.ReadSymbolKeyArray<IFunctionPointerTypeSymbol, ITypeSymbol>( 76if (returnType.GetAnySymbol() is not ITypeSymbol returnTypeSymbol)

44foreach (var receiverType in receiverTypeResolution.OfType<ITypeSymbol>()) 70using var typeArguments = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 223_ = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 246var returnType = (ITypeSymbol?)reader.ReadSymbolKey(contextualSymbol: method.ReturnType, out _).GetAnySymbol();

48using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>( 95ITypeSymbol[] typeArgumentsArray, 146ITypeSymbol[] typeArguments, 200private static INamedTypeSymbol Construct(INamedTypeSymbol type, bool isUnboundGenericType, ITypeSymbol[] typeArguments)

34foreach (var typeSymbol in pointedAtTypeResolution.OfType<ITypeSymbol>())

71_ = reader.ReadSymbolKeyArray<IPropertySymbol, ITypeSymbol>(

383Func<TOwningSymbol, int, ITypeSymbol?> getContextualType, 387using var originalParameterTypes = this.ReadSymbolKeyArray<TOwningSymbol, ITypeSymbol>(owningSymbol, getContextualType, out _);

96using var elementTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

102protected abstract TConversion ClassifyConversion(SemanticModel model, TExpressionSyntax expression, ITypeSymbol targetType); 103protected abstract TConversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType); 105protected abstract bool ConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType); 106protected abstract bool IsReferenceConversion(Compilation model, ITypeSymbol sourceType, ITypeSymbol targetType); 112SemanticModel model, TForEachStatementSyntax forEach, out IMethodSymbol getEnumeratorMethod, out ITypeSymbol elementType, out ImmutableArray<ILocalSymbol> localVariables); 305private bool ImplicitConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType) 740var previousOriginalType = this.OriginalSemanticModel.GetTypeInfo(previousOriginalNode).Type; 741var previousReplacedType = this.SpeculativeSemanticModel.GetTypeInfo(previousReplacedNode).Type; 780GetForEachSymbols(this.OriginalSemanticModel, forEachStatement, out var originalGetEnumerator, out var originalElementType, out var originalLocalVariables); 781GetForEachSymbols(this.SpeculativeSemanticModel, newForEachStatement, out var newGetEnumerator, out var newElementType, out var newLocalVariables); 826var expressionType = this.SpeculativeSemanticModel.GetTypeInfo(newForEachStatementExpression, CancellationToken).ConvertedType; 849var originalThrowExpressionType = this.OriginalSemanticModel.GetTypeInfo(originalThrowExpression).Type; 851var newThrowExpressionType = this.SpeculativeSemanticModel.GetTypeInfo(newThrowExpression).Type; 961var originalTargetType = this.OriginalSemanticModel.GetTypeInfo(originalLeft).Type; 964var newTargetType = this.SpeculativeSemanticModel.GetTypeInfo(newLeft).Type; 997var newReceiverType = newReceiver != null 1036var receiverType = semanticModel.GetTypeInfo(receiver).Type; 1196ITypeSymbol originalTargetType, 1198ITypeSymbol newTargetType, 1213var originalConvertedTypeSymbol = this.OriginalSemanticModel.GetTypeInfo(originalExpression).ConvertedType; 1219var newConvertedTypeSymbol = this.SpeculativeSemanticModel.GetTypeInfo(newExpression).ConvertedType;

39public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this INamedTypeSymbol? symbol) 669public static INamedTypeSymbol TryConstruct(this INamedTypeSymbol type, ITypeSymbol[] typeArguments)

226=> symbol is ITypeSymbol { TypeKind: TypeKind.Error }; 229=> symbol is ITypeSymbol { TypeKind: TypeKind.Module }; 232=> symbol is ITypeSymbol { TypeKind: TypeKind.Interface }; 238=> symbol is ITypeSymbol { IsTupleType: true }; 308=> symbol is ITypeSymbol { TypeKind: TypeKind.Delegate }; 339public static ITypeSymbol? GetMemberType(this ISymbol? symbol) 452public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 460public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 462var results = ArrayBuilder<ITypeSymbol>.GetInstance(); 476=> (symbol as ITypeSymbol)?.IsAttribute() == true; 490public static ITypeSymbol ConvertToType( 495if (symbol is ITypeSymbol type) 564public static Accessibility ComputeResultantAccessibility(this ISymbol? symbol, ITypeSymbol finalDestination) 623public static ITypeSymbol? GetSymbolType(this ISymbol? symbol) 630IAliasSymbol aliasSymbol => aliasSymbol.Target as ITypeSymbol, 631_ => symbol as ITypeSymbol, 642ITypeSymbol? typeSymbol = null; 646typeSymbol = symbol as ITypeSymbol; 675var returnType = getAwaiter.ReturnType; 709var returnType = getEnumerator.ReturnType; 749var returnType = getAsyncEnumerator.ReturnType;

21ITypeSymbol? throughType = null) 43ITypeSymbol? throughType = null) 55ITypeSymbol? throughType = null) 68ITypeSymbol? throughType, 87ITypeSymbol? throughType, 191foreach (var typeArg in type.TypeArguments) 251ITypeSymbol? throughType, 336ITypeSymbol? throughType, 376var originalThroughType = throughType?.OriginalDefinition;

11ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank); 12ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType); 13ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments);

17private static INamedTypeSymbol? GetNamedTypeSymbol(ITypeSymbol type)

15private sealed class AnonymousTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 17public override ITypeSymbol DefaultVisit(ISymbol node) 20public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 23public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 25var elementType = symbol.ElementType.Accept(this); 34public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

61foreach (var child in symbol.GetAllTypeArguments()) 90foreach (var constraint in symbol.ConstraintTypes)

13public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 16public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 19public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

26public static bool IsIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 29public static bool IsSignedIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 32public static bool CanAddNullCheck([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 43public static ImmutableArray<INamedTypeSymbol> GetAllInterfacesIncludingThis(this ITypeSymbol type) 51public static bool IsAbstractClass([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 54public static bool IsSystemVoid([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 57public static bool IsNullable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 60public static bool IsNonNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 64[NotNullWhen(true)] this ITypeSymbol? symbol, 65[NotNullWhen(true)] out ITypeSymbol? underlyingType) 77public static bool IsModuleType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 80public static bool IsInterfaceType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 83public static bool IsDelegateType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 86public static bool IsFunctionPointerType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 89public static bool IsStructType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 96this ITypeSymbol type, 110public static IEnumerable<ITypeSymbol> GetBaseTypesAndThis(this ITypeSymbol? type) 112var current = type; 120public static IEnumerable<INamedTypeSymbol> GetBaseTypes(this ITypeSymbol? type) 130public static IEnumerable<ITypeSymbol> GetContainingTypesAndThis(this ITypeSymbol? type) 132var current = type; 140public static IEnumerable<INamedTypeSymbol> GetContainingTypes(this ITypeSymbol type) 153this ITypeSymbol type, ITypeSymbol baseType, bool includeInterfaces) 166this ITypeSymbol type, ITypeSymbol baseType) 174this ITypeSymbol type, ITypeSymbol baseType) 176var originalBaseType = baseType.OriginalDefinition; 184IEnumerable<ITypeSymbol> baseTypes = (baseType.TypeKind == TypeKind.Interface) ? type.AllInterfaces : type.GetBaseTypes(); 191this ITypeSymbol type, ITypeSymbol baseType) 193var originalBaseType = baseType.OriginalDefinition; 213this ITypeSymbol type, ITypeSymbol interfaceType) 215var originalInterfaceType = interfaceType.OriginalDefinition; 220this ITypeSymbol type, ITypeSymbol interfaceType) 225public static bool IsAttribute(this ITypeSymbol symbol) 243public static bool IsFormattableStringOrIFormattable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 252this ITypeSymbol typeSymbol, bool allowDelegateAndEnumConstraints = false) 280public static bool IsNumericType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 306public static Accessibility DetermineMinimalAccessibility(this ITypeSymbol typeSymbol) 309public static bool ContainsAnonymousType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 325foreach (var typeArg in type.GetAllTypeArguments()) 334public static string CreateParameterName(this ITypeSymbol type, bool capitalize = false) 355private static string GetParameterName(ITypeSymbol? type) 368public static bool IsSpecialType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 399public static bool CanSupportCollectionInitializer(this ITypeSymbol typeSymbol, ISymbol within) 410public static INamedTypeSymbol? GetDelegateType(this ITypeSymbol? typeSymbol, Compilation compilation) 417var typeArgument = ((INamedTypeSymbol)typeSymbol).TypeArguments[0]; 430public static IEnumerable<T> GetAccessibleMembersInBaseTypes<T>(this ITypeSymbol containingType, ISymbol within) where T : class, ISymbol 439public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, ISymbol within) where T : class, ISymbol 449public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, string memberName, ISymbol within) where T : class, ISymbol 459public static bool? AreMoreSpecificThan(this IList<ITypeSymbol> t1, IList<ITypeSymbol> t2) 494public static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, ISymbol within) where T : class, ISymbol 504private static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, string memberName, ISymbol within) where T : class, ISymbol 514private static bool? IsMoreSpecificThan(this ITypeSymbol t1, ITypeSymbol t2) 592public static bool IsOrDerivesFromExceptionType([NotNullWhen(returnValue: true)] this ITypeSymbol? type, Compilation compilation) 599foreach (var baseType in type.GetBaseTypesAndThis()) 610foreach (var constraint in ((ITypeParameterSymbol)type).ConstraintTypes) 625public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type) 628public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type, [NotNullWhen(true)] out INamedTypeSymbol? enumType) 640public static bool? IsMutableValueType(this ITypeSymbol type) 642if (type.IsNullable(out var underlyingType)) 721static bool IsWellKnownImmutableValueType(ITypeSymbol type) 754public static bool IsDisposable([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? iDisposableType) 759public static ITypeSymbol WithNullableAnnotationFrom(this ITypeSymbol type, ITypeSymbol symbolForNullableAnnotation) 763public static ITypeSymbol? RemoveNullableIfPresent(this ITypeSymbol? symbol) 765if (symbol.IsNullable(out var underlyingType)) 773public static bool IsSpanOrReadOnlySpan([NotNullWhen(true)] this ITypeSymbol? type) 776public static bool IsSpan([NotNullWhen(true)] this ITypeSymbol? type) 792public static bool IsInlineArray([NotNullWhen(true)] this ITypeSymbol? type) 797public static ITypeSymbol? RemoveUnavailableTypeParameters( 798this ITypeSymbol? type, 806private static ITypeSymbol? RemoveUnavailableTypeParameters( 807this ITypeSymbol? type, 815public static ITypeSymbol? RemoveAnonymousTypes( 816this ITypeSymbol? type, 823public static ITypeSymbol? RemoveUnnamedErrorTypes( 824this ITypeSymbol? type, 831this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 837this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 843this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result, bool onlyMethodTypeParameters) 852public static IList<ITypeParameterSymbol> GetReferencedTypeParameters(this ITypeSymbol? type) 860public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 861this ITypeSymbol? type, 864where TType1 : ITypeSymbol 865where TType2 : ITypeSymbol 871public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 872this ITypeSymbol? type, 875where TType1 : ITypeSymbol 876where TType2 : ITypeSymbol

54foreach (var arg in symbol.TypeArguments)

16private sealed class SubstituteTypesVisitor<TType1, TType2> : SymbolVisitor<ITypeSymbol> 17where TType1 : ITypeSymbol 18where TType2 : ITypeSymbol 32public override ITypeSymbol DefaultVisit(ISymbol node) 35private ITypeSymbol VisitType(ITypeSymbol symbol) 45public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 48public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol) 51public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 58public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 60var mapped = VisitType(symbol); 79var updatedContainingType = symbol.ContainingType?.Accept(this); 96public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 98var mapped = VisitType(symbol); 104var elementType = symbol.ElementType.Accept(this); 113public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 115var mapped = VisitType(symbol); 121var pointedAtType = symbol.PointedAtType.Accept(this);

18private sealed class UnavailableTypeParameterRemover(Compilation compilation, ISet<string> availableTypeParameterNames) : SymbolVisitor<ITypeSymbol> 20public override ITypeSymbol DefaultVisit(ISymbol node) 23public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 26public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 28var elementType = symbol.ElementType.Accept(this); 37public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 43public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

17private sealed class UnnamedErrorTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 19public override ITypeSymbol DefaultVisit(ISymbol node) 22public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 25public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 27var elementType = symbol.ElementType.Accept(this); 36public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 58public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 60var elementType = symbol.PointedAtType.Accept(this); 69public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

27private IEqualityComparer<ITypeSymbol> SignatureTypeEquivalenceComparer => _symbolEquivalenceComparer.SignatureTypeEquivalenceComparer;

198=> symbol.IsKind(SymbolKind.NamedType, out ITypeSymbol? typeSymbol) && typeSymbol.SpecialType == SpecialType.System_Object;

95private bool NullableAnnotationsEquivalent(ITypeSymbol x, ITypeSymbol y) 492private bool TypeArgumentsAreEquivalent(ImmutableArray<ITypeSymbol> xTypeArguments, ImmutableArray<ITypeSymbol> yTypeArguments, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies)

50return Hash.Combine(GetNullableAnnotationsHashCode((ITypeSymbol)x), Hash.Combine(typeof(IDynamicTypeSymbol), currentHash)); 56private int GetNullableAnnotationsHashCode(ITypeSymbol type)

13internal sealed class SignatureTypeSymbolEquivalenceComparer(SymbolEquivalenceComparer symbolEquivalenceComparer) : IEqualityComparer<ITypeSymbol?> 15public bool Equals(ITypeSymbol? x, ITypeSymbol? y) 18public bool Equals(ITypeSymbol? x, ITypeSymbol? y, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies) 21public int GetHashCode(ITypeSymbol? x)

49ITypeSymbol coupledType) 349private static void AddCoupledNamedTypesCore(ImmutableHashSet<INamedTypeSymbol>.Builder builder, ITypeSymbol typeOpt, 363foreach (var type in usedType.TypeArguments)

89public static bool IsImplementationOfInterfaceMethod(this IMethodSymbol method, ITypeSymbol? typeArgument, [NotNullWhen(returnValue: true)] INamedTypeSymbol? interfaceType, string interfaceMethodName)

29public static ITypeSymbol? GetReceiverType(this IInvocationOperation invocation, Compilation compilation, bool beforeConversion, CancellationToken cancellationToken) 55private static ITypeSymbol? GetReceiverType(SyntaxNode receiverSyntax, Compilation compilation, CancellationToken cancellationToken) 391public static ITypeSymbol? GetPatternType(this IPatternOperation pattern) 467public static ITypeSymbol? GetThrownExceptionType(this IThrowOperation operation)

110var type1 = parameter1.Type.OriginalDefinition; 111var type2 = parameter2.Type.OriginalDefinition; 216public static ITypeSymbol? GetMemberOrLocalOrParameterType(this ISymbol symbol) 292public static bool HasDerivedTypeAttribute(this ITypeSymbol symbol, [NotNullWhen(returnValue: true)] INamedTypeSymbol? attribute) 377ITypeSymbol type => type.IsReadOnly,

18public static bool IsPrimitiveType(this ITypeSymbol type) 39public static bool Inherits([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? possibleBase) 64public static bool DerivesFrom([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol, [NotNullWhen(returnValue: true)] ITypeSymbol? candidateBaseType, bool baseTypesOnly = false, bool checkTypeParameterConstraints = true) 73var allInterfaces = symbol.AllInterfaces.OfType<ITypeSymbol>(); 89foreach (var constraintType in typeParameterSymbol.ConstraintTypes) 115public static bool IsDisposable(this ITypeSymbol type, 138static bool IsInterfaceOrImplementsInterface(ITypeSymbol type, INamedTypeSymbol? interfaceType) 248public static bool HasValueCopySemantics(this ITypeSymbol typeSymbol) 251public static bool CanHoldNullValue([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 256public static bool IsNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 259public static bool IsReferenceTypeOrNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 262public static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 265public static ITypeSymbol? GetUnderlyingValueTupleTypeOrThis(this ITypeSymbol? typeSymbol)

14/// <see cref="IComparer{T}"/> for <see cref="ITypeSymbol"/>s sorted by display strings. 17internal sealed class SymbolByDisplayStringComparer : IComparer<ITypeSymbol> 50public int Compare([AllowNull] ITypeSymbol x, [AllowNull] ITypeSymbol y)

203internal bool IsTaskOfType([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol, bool> typeArgumentPredicate)

137public static string GenerateNameFromType(this SemanticModel semanticModel, ITypeSymbol type, ISyntaxFacts syntaxFacts, bool capitalize) 168private static bool ShouldPluralize(this SemanticModel semanticModel, ITypeSymbol type) 183ImmutableArray<ITypeSymbol> typeArguments, 218public static ITypeSymbol GetType(

362SymbolCategory.Type => symbol is ITypeSymbol type && type.TypeKind == (TypeKind)_kind,

12ITypeSymbol? elementType) 18public readonly ITypeSymbol? ElementType = elementType;

118private static bool IsFloatingPoint([NotNullWhen(returnValue: true)] ITypeSymbol? type)

40using var propertyTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

32foreach (var typeSymbol in elementTypeResolution.OfType<ITypeSymbol>())

28using var parameterTypes = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 45var returnTypeSymbol = (ITypeSymbol?)returnType.GetAnySymbol();

44visitor.WriteSymbolKeyArray(ImmutableArray<ITypeSymbol>.Empty); 72using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

56using var parameterTypes = reader.ReadSymbolKeyArray<IFunctionPointerTypeSymbol, ITypeSymbol>( 76if (returnType.GetAnySymbol() is not ITypeSymbol returnTypeSymbol)

44foreach (var receiverType in receiverTypeResolution.OfType<ITypeSymbol>()) 70using var typeArguments = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 223_ = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 246var returnType = (ITypeSymbol?)reader.ReadSymbolKey(contextualSymbol: method.ReturnType, out _).GetAnySymbol();

48using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>( 95ITypeSymbol[] typeArgumentsArray, 146ITypeSymbol[] typeArguments, 200private static INamedTypeSymbol Construct(INamedTypeSymbol type, bool isUnboundGenericType, ITypeSymbol[] typeArguments)

34foreach (var typeSymbol in pointedAtTypeResolution.OfType<ITypeSymbol>())

71_ = reader.ReadSymbolKeyArray<IPropertySymbol, ITypeSymbol>(

383Func<TOwningSymbol, int, ITypeSymbol?> getContextualType, 387using var originalParameterTypes = this.ReadSymbolKeyArray<TOwningSymbol, ITypeSymbol>(owningSymbol, getContextualType, out _);

96using var elementTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

102protected abstract TConversion ClassifyConversion(SemanticModel model, TExpressionSyntax expression, ITypeSymbol targetType); 103protected abstract TConversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType); 105protected abstract bool ConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType); 106protected abstract bool IsReferenceConversion(Compilation model, ITypeSymbol sourceType, ITypeSymbol targetType); 112SemanticModel model, TForEachStatementSyntax forEach, out IMethodSymbol getEnumeratorMethod, out ITypeSymbol elementType, out ImmutableArray<ILocalSymbol> localVariables); 305private bool ImplicitConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType) 740var previousOriginalType = this.OriginalSemanticModel.GetTypeInfo(previousOriginalNode).Type; 741var previousReplacedType = this.SpeculativeSemanticModel.GetTypeInfo(previousReplacedNode).Type; 780GetForEachSymbols(this.OriginalSemanticModel, forEachStatement, out var originalGetEnumerator, out var originalElementType, out var originalLocalVariables); 781GetForEachSymbols(this.SpeculativeSemanticModel, newForEachStatement, out var newGetEnumerator, out var newElementType, out var newLocalVariables); 826var expressionType = this.SpeculativeSemanticModel.GetTypeInfo(newForEachStatementExpression, CancellationToken).ConvertedType; 849var originalThrowExpressionType = this.OriginalSemanticModel.GetTypeInfo(originalThrowExpression).Type; 851var newThrowExpressionType = this.SpeculativeSemanticModel.GetTypeInfo(newThrowExpression).Type; 961var originalTargetType = this.OriginalSemanticModel.GetTypeInfo(originalLeft).Type; 964var newTargetType = this.SpeculativeSemanticModel.GetTypeInfo(newLeft).Type; 997var newReceiverType = newReceiver != null 1036var receiverType = semanticModel.GetTypeInfo(receiver).Type; 1196ITypeSymbol originalTargetType, 1198ITypeSymbol newTargetType, 1213var originalConvertedTypeSymbol = this.OriginalSemanticModel.GetTypeInfo(originalExpression).ConvertedType; 1219var newConvertedTypeSymbol = this.SpeculativeSemanticModel.GetTypeInfo(newExpression).ConvertedType;

39public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this INamedTypeSymbol? symbol) 669public static INamedTypeSymbol TryConstruct(this INamedTypeSymbol type, ITypeSymbol[] typeArguments)

226=> symbol is ITypeSymbol { TypeKind: TypeKind.Error }; 229=> symbol is ITypeSymbol { TypeKind: TypeKind.Module }; 232=> symbol is ITypeSymbol { TypeKind: TypeKind.Interface }; 238=> symbol is ITypeSymbol { IsTupleType: true }; 308=> symbol is ITypeSymbol { TypeKind: TypeKind.Delegate }; 339public static ITypeSymbol? GetMemberType(this ISymbol? symbol) 452public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 460public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 462var results = ArrayBuilder<ITypeSymbol>.GetInstance(); 476=> (symbol as ITypeSymbol)?.IsAttribute() == true; 490public static ITypeSymbol ConvertToType( 495if (symbol is ITypeSymbol type) 564public static Accessibility ComputeResultantAccessibility(this ISymbol? symbol, ITypeSymbol finalDestination) 623public static ITypeSymbol? GetSymbolType(this ISymbol? symbol) 630IAliasSymbol aliasSymbol => aliasSymbol.Target as ITypeSymbol, 631_ => symbol as ITypeSymbol, 642ITypeSymbol? typeSymbol = null; 646typeSymbol = symbol as ITypeSymbol; 675var returnType = getAwaiter.ReturnType; 709var returnType = getEnumerator.ReturnType; 749var returnType = getAsyncEnumerator.ReturnType;

21ITypeSymbol? throughType = null) 43ITypeSymbol? throughType = null) 55ITypeSymbol? throughType = null) 68ITypeSymbol? throughType, 87ITypeSymbol? throughType, 191foreach (var typeArg in type.TypeArguments) 251ITypeSymbol? throughType, 336ITypeSymbol? throughType, 376var originalThroughType = throughType?.OriginalDefinition;

11ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank); 12ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType); 13ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments);

17private static INamedTypeSymbol? GetNamedTypeSymbol(ITypeSymbol type)

15private sealed class AnonymousTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 17public override ITypeSymbol DefaultVisit(ISymbol node) 20public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 23public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 25var elementType = symbol.ElementType.Accept(this); 34public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

61foreach (var child in symbol.GetAllTypeArguments()) 90foreach (var constraint in symbol.ConstraintTypes)

13public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 16public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 19public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

26public static bool IsIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 29public static bool IsSignedIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 32public static bool CanAddNullCheck([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 43public static ImmutableArray<INamedTypeSymbol> GetAllInterfacesIncludingThis(this ITypeSymbol type) 51public static bool IsAbstractClass([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 54public static bool IsSystemVoid([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 57public static bool IsNullable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 60public static bool IsNonNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 64[NotNullWhen(true)] this ITypeSymbol? symbol, 65[NotNullWhen(true)] out ITypeSymbol? underlyingType) 77public static bool IsModuleType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 80public static bool IsInterfaceType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 83public static bool IsDelegateType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 86public static bool IsFunctionPointerType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 89public static bool IsStructType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 96this ITypeSymbol type, 110public static IEnumerable<ITypeSymbol> GetBaseTypesAndThis(this ITypeSymbol? type) 112var current = type; 120public static IEnumerable<INamedTypeSymbol> GetBaseTypes(this ITypeSymbol? type) 130public static IEnumerable<ITypeSymbol> GetContainingTypesAndThis(this ITypeSymbol? type) 132var current = type; 140public static IEnumerable<INamedTypeSymbol> GetContainingTypes(this ITypeSymbol type) 153this ITypeSymbol type, ITypeSymbol baseType, bool includeInterfaces) 166this ITypeSymbol type, ITypeSymbol baseType) 174this ITypeSymbol type, ITypeSymbol baseType) 176var originalBaseType = baseType.OriginalDefinition; 184IEnumerable<ITypeSymbol> baseTypes = (baseType.TypeKind == TypeKind.Interface) ? type.AllInterfaces : type.GetBaseTypes(); 191this ITypeSymbol type, ITypeSymbol baseType) 193var originalBaseType = baseType.OriginalDefinition; 213this ITypeSymbol type, ITypeSymbol interfaceType) 215var originalInterfaceType = interfaceType.OriginalDefinition; 220this ITypeSymbol type, ITypeSymbol interfaceType) 225public static bool IsAttribute(this ITypeSymbol symbol) 243public static bool IsFormattableStringOrIFormattable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 252this ITypeSymbol typeSymbol, bool allowDelegateAndEnumConstraints = false) 280public static bool IsNumericType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 306public static Accessibility DetermineMinimalAccessibility(this ITypeSymbol typeSymbol) 309public static bool ContainsAnonymousType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 325foreach (var typeArg in type.GetAllTypeArguments()) 334public static string CreateParameterName(this ITypeSymbol type, bool capitalize = false) 355private static string GetParameterName(ITypeSymbol? type) 368public static bool IsSpecialType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 399public static bool CanSupportCollectionInitializer(this ITypeSymbol typeSymbol, ISymbol within) 410public static INamedTypeSymbol? GetDelegateType(this ITypeSymbol? typeSymbol, Compilation compilation) 417var typeArgument = ((INamedTypeSymbol)typeSymbol).TypeArguments[0]; 430public static IEnumerable<T> GetAccessibleMembersInBaseTypes<T>(this ITypeSymbol containingType, ISymbol within) where T : class, ISymbol 439public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, ISymbol within) where T : class, ISymbol 449public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, string memberName, ISymbol within) where T : class, ISymbol 459public static bool? AreMoreSpecificThan(this IList<ITypeSymbol> t1, IList<ITypeSymbol> t2) 494public static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, ISymbol within) where T : class, ISymbol 504private static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, string memberName, ISymbol within) where T : class, ISymbol 514private static bool? IsMoreSpecificThan(this ITypeSymbol t1, ITypeSymbol t2) 592public static bool IsOrDerivesFromExceptionType([NotNullWhen(returnValue: true)] this ITypeSymbol? type, Compilation compilation) 599foreach (var baseType in type.GetBaseTypesAndThis()) 610foreach (var constraint in ((ITypeParameterSymbol)type).ConstraintTypes) 625public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type) 628public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type, [NotNullWhen(true)] out INamedTypeSymbol? enumType) 640public static bool? IsMutableValueType(this ITypeSymbol type) 642if (type.IsNullable(out var underlyingType)) 721static bool IsWellKnownImmutableValueType(ITypeSymbol type) 754public static bool IsDisposable([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? iDisposableType) 759public static ITypeSymbol WithNullableAnnotationFrom(this ITypeSymbol type, ITypeSymbol symbolForNullableAnnotation) 763public static ITypeSymbol? RemoveNullableIfPresent(this ITypeSymbol? symbol) 765if (symbol.IsNullable(out var underlyingType)) 773public static bool IsSpanOrReadOnlySpan([NotNullWhen(true)] this ITypeSymbol? type) 776public static bool IsSpan([NotNullWhen(true)] this ITypeSymbol? type) 792public static bool IsInlineArray([NotNullWhen(true)] this ITypeSymbol? type) 797public static ITypeSymbol? RemoveUnavailableTypeParameters( 798this ITypeSymbol? type, 806private static ITypeSymbol? RemoveUnavailableTypeParameters( 807this ITypeSymbol? type, 815public static ITypeSymbol? RemoveAnonymousTypes( 816this ITypeSymbol? type, 823public static ITypeSymbol? RemoveUnnamedErrorTypes( 824this ITypeSymbol? type, 831this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 837this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 843this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result, bool onlyMethodTypeParameters) 852public static IList<ITypeParameterSymbol> GetReferencedTypeParameters(this ITypeSymbol? type) 860public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 861this ITypeSymbol? type, 864where TType1 : ITypeSymbol 865where TType2 : ITypeSymbol 871public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 872this ITypeSymbol? type, 875where TType1 : ITypeSymbol 876where TType2 : ITypeSymbol

54foreach (var arg in symbol.TypeArguments)

16private sealed class SubstituteTypesVisitor<TType1, TType2> : SymbolVisitor<ITypeSymbol> 17where TType1 : ITypeSymbol 18where TType2 : ITypeSymbol 32public override ITypeSymbol DefaultVisit(ISymbol node) 35private ITypeSymbol VisitType(ITypeSymbol symbol) 45public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 48public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol) 51public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 58public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 60var mapped = VisitType(symbol); 79var updatedContainingType = symbol.ContainingType?.Accept(this); 96public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 98var mapped = VisitType(symbol); 104var elementType = symbol.ElementType.Accept(this); 113public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 115var mapped = VisitType(symbol); 121var pointedAtType = symbol.PointedAtType.Accept(this);

18private sealed class UnavailableTypeParameterRemover(Compilation compilation, ISet<string> availableTypeParameterNames) : SymbolVisitor<ITypeSymbol> 20public override ITypeSymbol DefaultVisit(ISymbol node) 23public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 26public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 28var elementType = symbol.ElementType.Accept(this); 37public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 43public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

17private sealed class UnnamedErrorTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 19public override ITypeSymbol DefaultVisit(ISymbol node) 22public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 25public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 27var elementType = symbol.ElementType.Accept(this); 36public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 58public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 60var elementType = symbol.PointedAtType.Accept(this); 69public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

27private IEqualityComparer<ITypeSymbol> SignatureTypeEquivalenceComparer => _symbolEquivalenceComparer.SignatureTypeEquivalenceComparer;

198=> symbol.IsKind(SymbolKind.NamedType, out ITypeSymbol? typeSymbol) && typeSymbol.SpecialType == SpecialType.System_Object;

95private bool NullableAnnotationsEquivalent(ITypeSymbol x, ITypeSymbol y) 492private bool TypeArgumentsAreEquivalent(ImmutableArray<ITypeSymbol> xTypeArguments, ImmutableArray<ITypeSymbol> yTypeArguments, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies)

50return Hash.Combine(GetNullableAnnotationsHashCode((ITypeSymbol)x), Hash.Combine(typeof(IDynamicTypeSymbol), currentHash)); 56private int GetNullableAnnotationsHashCode(ITypeSymbol type)

13internal sealed class SignatureTypeSymbolEquivalenceComparer(SymbolEquivalenceComparer symbolEquivalenceComparer) : IEqualityComparer<ITypeSymbol?> 15public bool Equals(ITypeSymbol? x, ITypeSymbol? y) 18public bool Equals(ITypeSymbol? x, ITypeSymbol? y, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies) 21public int GetHashCode(ITypeSymbol? x)

130var returnType = operation.Type?.OriginalDefinition;

49var knownTypes = new HashSet<ITypeSymbol>(SymbolEqualityComparer.Default); 116var returnType = method.ReturnType.OriginalDefinition; 154private static bool MethodParametersContainKnownTypes(IMethodSymbol method, HashSet<ITypeSymbol> typeSymbols)

107var keyType = type.TypeArguments[0]; 122var valueType = keyType;

19public readonly Dictionary<ITypeSymbol, List<Action<OperationAnalysisContext, IThrowOperation>>> ExceptionTypes = new(SymbolEqualityComparer.Default); 20public readonly Dictionary<ITypeSymbol, List<MethodHandlers>> Interfaces = new(SymbolEqualityComparer.Default);

366var t = invocationOp.Arguments[0].Value.Type!; 404var type = e.SemanticModel?.GetTypeInfo(e.Syntax).Type!; 427private static List<ITypeSymbol> MakeArgumentList(FixDetails details, IInvocationOperation invocationOp) 429var args = new List<ITypeSymbol>

34var type = op.Target.Type; 61var type = op.Value.Type;

36ITypeSymbol? type;

59var disqualifyingMemberAttributes = new HashSet<ITypeSymbol>(SymbolEqualityComparer.Default); 69var disqualifyingTypeAttributes = new HashSet<ITypeSymbol>(SymbolEqualityComparer.Default); 79var disqualifyingBaseClasses = new List<ITypeSymbol>(); 93var type = (ITypeSymbol)symbolActionContext.Symbol; 109foreach (var c in disqualifyingBaseClasses)

16public static bool IsAncestorOf(this ITypeSymbol potentialAncestor, ITypeSymbol potentialDescendant) 18ITypeSymbol? t = potentialDescendant;

19public readonly Dictionary<ITypeSymbol, List<Action<OperationAnalysisContext, IThrowOperation>>> ExceptionTypes = new(SymbolEqualityComparer.Default); 20public readonly Dictionary<ITypeSymbol, List<MethodHandlers>> Interfaces = new(SymbolEqualityComparer.Default);

164internal static ITypeSymbol? GetFieldOrPropertyType(this ISymbol symbol)

36var returnType = methodReference.Method.ReturnType; 59var returnType = resolvedOperation.Type; 76private static void AddDiagnosticWarning(OperationAnalysisContext context, Location location, ITypeSymbol returnType)

34foreach (var currentClass in controllerSymbol.GetTypeHierarchy()) 64foreach (var currentClass in actionSymbol.ContainingType.GetTypeHierarchy()) 136INamedTypeSymbol commonAttribute, ITypeSymbol attributeInterface, bool mustBeInheritable)

368if (attributeTypeSymbol.ContainingSymbol is ITypeSymbol typeSymbol &&

69ITypeSymbol typeSymbol => typeSymbol.GetMembers().OfType<IPropertySymbol>().ToImmutableArray().As<ISymbol>(),

34var returnType = UnwrapPossibleAsyncReturnType(methodSymbol.ReturnType); 67var type = returnedValue.Type; 89private static ITypeSymbol UnwrapPossibleAsyncReturnType(ITypeSymbol returnType)

208var parmeterType = targetMethod.Parameters[DelegateParameterOrdinal].Type;

15public static bool HasAttribute(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 18public static bool HasAttribute(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 21public static IEnumerable<AttributeData> GetAttributes(this ISymbol symbol, ITypeSymbol attribute) 32public static IEnumerable<AttributeData> GetAttributes(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 54public static IEnumerable<AttributeData> GetAttributes(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 59foreach (var type in GetTypeHierarchy(typeSymbol)) 73public static bool HasAttribute(this IPropertySymbol propertySymbol, ITypeSymbol attribute, bool inherit) 97public static bool IsAssignableFrom(this ITypeSymbol source, ITypeSymbol target) 120foreach (var type in target.GetTypeHierarchy()) 131public static bool HasAttribute(this ISymbol symbol, ITypeSymbol attribute) 144public static IEnumerable<ITypeSymbol> GetTypeHierarchy(this ITypeSymbol? typeSymbol)

20private static readonly BoundedCacheWithFactory<ITypeSymbol, (BindabilityMethod?, IMethodSymbol?)> BindabilityCache = new(); 21private static readonly BoundedCacheWithFactory<ITypeSymbol, (Parsability, ParsabilityMethod?)> ParsabilityCache = new(); 23private static bool IsTypeAlwaysParsable(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(true)] out ParsabilityMethod? parsabilityMethod) 50internal static Parsability GetParsability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 55internal static Parsability GetParsability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(false)] out ParsabilityMethod? parsabilityMethod) 115internal static bool IsParsableViaIParsable(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 124private static bool IsBindableViaIBindableFromHttpContext(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 134private static bool IsBindAsync(IMethodSymbol methodSymbol, ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 145private static bool IsBindAsyncWithParameter(IMethodSymbol methodSymbol, ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 156private static bool IsReturningValueTaskOfTOrNullableT(INamedTypeSymbol returnType, ITypeSymbol containingType, WellKnownTypes wellKnownTypes) 162internal static Bindability GetBindability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, out BindabilityMethod? bindabilityMethod, out IMethodSymbol? bindMethodSymbol) 180foreach (var candidate in searchCandidates)

19public static ITypeSymbol UnwrapTypeSymbol(this ITypeSymbol typeSymbol, bool unwrapArray = false, bool unwrapNullable = false) 42public static IEnumerable<ITypeSymbol> GetThisAndBaseTypes(this ITypeSymbol? type) 44var current = type; 70public static bool HasAttribute(this ITypeSymbol typeSymbol, INamedTypeSymbol attributeSymbol) 72var current = typeSymbol; 174public static bool Implements(this ITypeSymbol type, ITypeSymbol interfaceType) 186public static bool InheritsFrom(this ITypeSymbol type, ITypeSymbol baseType) 188foreach (var t in type.GetThisAndBaseTypes()) 204public static ITypeSymbol GetParameterType(this ISymbol symbol) 244private static string InnerGetDefaultValueString(object? defaultValue, ITypeSymbol parameterType) 247if (IsEnumType(parameterType, out var enumType)) 253if (IsNullableEnumType(parameterType, out var underlyingEnumType)) 308private static bool IsEnumType(ITypeSymbol typeSymbol, out ITypeSymbol enumType) 314private static bool IsNullableEnumType(ITypeSymbol typeSymbol, [NotNullWhen(true)] out ITypeSymbol? underlyingEnumType) 320var underlyingType = namedType.TypeArguments.FirstOrDefault();

116public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes) => IsType(type, wellKnownTypes, out var _); 118public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes, [NotNullWhen(true)] out WellKnownTypeData.WellKnownType? match) 133public bool Implements(ITypeSymbol type, WellKnownTypeData.WellKnownType[] interfaceWellKnownTypes) 146public static bool Implements(ITypeSymbol? type, ITypeSymbol interfaceType)

67var symbolType = symbol switch

64var symbolType = symbol.Symbol switch

8internal readonly struct ThisAndExtensionMethod(ITypeSymbol thisType, string extensionMethod) 10public ITypeSymbol ThisType { get; } = thisType;

20private static readonly BoundedCacheWithFactory<ITypeSymbol, (BindabilityMethod?, IMethodSymbol?)> BindabilityCache = new(); 21private static readonly BoundedCacheWithFactory<ITypeSymbol, (Parsability, ParsabilityMethod?)> ParsabilityCache = new(); 23private static bool IsTypeAlwaysParsable(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(true)] out ParsabilityMethod? parsabilityMethod) 50internal static Parsability GetParsability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 55internal static Parsability GetParsability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(false)] out ParsabilityMethod? parsabilityMethod) 115internal static bool IsParsableViaIParsable(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 124private static bool IsBindableViaIBindableFromHttpContext(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 134private static bool IsBindAsync(IMethodSymbol methodSymbol, ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 145private static bool IsBindAsyncWithParameter(IMethodSymbol methodSymbol, ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes) 156private static bool IsReturningValueTaskOfTOrNullableT(INamedTypeSymbol returnType, ITypeSymbol containingType, WellKnownTypes wellKnownTypes) 162internal static Bindability GetBindability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, out BindabilityMethod? bindabilityMethod, out IMethodSymbol? bindMethodSymbol) 180foreach (var candidate in searchCandidates)

19public static ITypeSymbol UnwrapTypeSymbol(this ITypeSymbol typeSymbol, bool unwrapArray = false, bool unwrapNullable = false) 42public static IEnumerable<ITypeSymbol> GetThisAndBaseTypes(this ITypeSymbol? type) 44var current = type; 70public static bool HasAttribute(this ITypeSymbol typeSymbol, INamedTypeSymbol attributeSymbol) 72var current = typeSymbol; 174public static bool Implements(this ITypeSymbol type, ITypeSymbol interfaceType) 186public static bool InheritsFrom(this ITypeSymbol type, ITypeSymbol baseType) 188foreach (var t in type.GetThisAndBaseTypes()) 204public static ITypeSymbol GetParameterType(this ISymbol symbol) 244private static string InnerGetDefaultValueString(object? defaultValue, ITypeSymbol parameterType) 247if (IsEnumType(parameterType, out var enumType)) 253if (IsNullableEnumType(parameterType, out var underlyingEnumType)) 308private static bool IsEnumType(ITypeSymbol typeSymbol, out ITypeSymbol enumType) 314private static bool IsNullableEnumType(ITypeSymbol typeSymbol, [NotNullWhen(true)] out ITypeSymbol? underlyingEnumType) 320var underlyingType = namedType.TypeArguments.FirstOrDefault();

116public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes) => IsType(type, wellKnownTypes, out var _); 118public bool IsType(ITypeSymbol type, WellKnownTypeData.WellKnownType[] wellKnownTypes, [NotNullWhen(true)] out WellKnownTypeData.WellKnownType? match) 133public bool Implements(ITypeSymbol type, WellKnownTypeData.WellKnownType[] interfaceWellKnownTypes) 146public static bool Implements(ITypeSymbol? type, ITypeSymbol interfaceType)

32var typeSymbol = parameterSymbol.Type;

25public static bool IsSerializableJsonResponse(this EndpointResponse endpointResponse, [NotNullWhen(true)] out ITypeSymbol? responseTypeSymbol)

16if (endpoint.Response?.IsSerializableJsonResponse(out var responseType) == true)

340var receiverType = endpointParameter.BindableMethodSymbol?.ReceiverType is { TypeKind: TypeKind.Interface } targetType 343var bindMethodReceiverType = receiverType?.UnwrapTypeSymbol(unwrapNullable: true); 346var unwrappedType = endpointParameter.UnwrapParameterType();

54private EndpointParameter(Endpoint endpoint, ITypeSymbol typeSymbol, string parameterName, WellKnownTypes wellKnownTypes) 60IsArray = TryGetArrayElementType(typeSymbol, out var elementType); 267private static bool ImplementsIEndpointMetadataProvider(ITypeSymbol type, WellKnownTypes wellKnownTypes) 270private static bool ImplementsIEndpointParameterMetadataProvider(ITypeSymbol type, WellKnownTypes wellKnownTypes) 273public ITypeSymbol Type { get; } 274public ITypeSymbol ElementType { get; } 304private static bool HasBindAsync(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(true)] out BindabilityMethod? bindMethod, [NotNullWhen(true)] out IMethodSymbol? bindMethodSymbol) 306var parameterType = typeSymbol.UnwrapTypeSymbol(unwrapArray: true, unwrapNullable: true); 310private static bool TryGetArrayElementType(ITypeSymbol type, [NotNullWhen(true)] out ITypeSymbol elementType) 324private bool TryGetParsability(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes, [NotNullWhen(true)] out Func<string, string, string>? preferredTryParseInvocation) 326var parameterType = typeSymbol.UnwrapTypeSymbol(unwrapArray: true, unwrapNullable: true); 381private static bool TryGetSpecialTypeAssigningCode(ITypeSymbol type, WellKnownTypes wellKnownTypes, [NotNullWhen(true)] out string? callingCode)

16public ITypeSymbol? ResponseType { get; set; } 17public ITypeSymbol WrappedResponseType { get; set; } 41private static bool ImplementsIEndpointMetadataProvider(ITypeSymbol? responseType, WellKnownTypes wellKnownTypes) 44private ITypeSymbol? UnwrapResponseType(IMethodSymbol method, out bool isAwaitable, out bool awaitableIsVoid) 48var returnType = method.ReturnType;

10public static ITypeSymbol UnwrapParameterType(this EndpointParameter parameter) 12var handlerParameterType = parameter.Type; 13var bindAsyncReturnType = parameter.GetBindAsyncReturnType(); 54public static ITypeSymbol? GetBindAsyncReturnType(this EndpointParameter parameter) 57public static bool IsNullableOfT(this ITypeSymbol? typeSymbol)

12public ParameterLookupKey(string name, ITypeSymbol type) 19public ITypeSymbol Type { get; }

39var type = p.UnwrapParameterType();

15public static bool HasAttribute(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 18public static bool HasAttribute(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 21public static IEnumerable<AttributeData> GetAttributes(this ISymbol symbol, ITypeSymbol attribute) 32public static IEnumerable<AttributeData> GetAttributes(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 54public static IEnumerable<AttributeData> GetAttributes(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 59foreach (var type in GetTypeHierarchy(typeSymbol)) 73public static bool HasAttribute(this IPropertySymbol propertySymbol, ITypeSymbol attribute, bool inherit) 97public static bool IsAssignableFrom(this ITypeSymbol source, ITypeSymbol target) 120foreach (var type in target.GetTypeHierarchy()) 131public static bool HasAttribute(this ISymbol symbol, ITypeSymbol attribute) 144public static IEnumerable<ITypeSymbol> GetTypeHierarchy(this ITypeSymbol? typeSymbol)

105var type = parameter.Type; 130private static bool IsComplexType(ITypeSymbol type)

14public ActualApiResponseMetadata(IReturnOperation returnExpression, ITypeSymbol returnType) 21public ActualApiResponseMetadata(IReturnOperation returnExpression, int statusCode, ITypeSymbol? returnType) 34public ITypeSymbol? ReturnType { get; }

79var statementReturnType = returnedValue.Type; 116ITypeSymbol? returnType = null; 155private static (int? statusCode, ITypeSymbol? returnType) InspectInitializers( 160ITypeSymbol? typeSymbol = null; 191private static (int? statusCode, ITypeSymbol? returnType) InspectMethodArguments(ImmutableArray<IArgumentOperation> arguments) 194ITypeSymbol? typeSymbol = null;

56var errorResponseType = SymbolApiResponseMetadataProvider.GetErrorResponseType(context.SymbolCache, context.Method); 70var returnType = item.typeSymbol; 169private static ICollection<(int statusCode, ITypeSymbol? typeSymbol)> CalculateStatusCodesToApply(in CodeActionContext context, IList<DeclaredApiResponseMetadata> declaredResponseMetadata) 176return Array.Empty<(int, ITypeSymbol?)>(); 179var statusCodes = new Dictionary<int, (int, ITypeSymbol?)>(); 214private static AttributeSyntax CreateProducesResponseTypeAttribute(in CodeActionContext context, int statusCode, ITypeSymbol typeSymbol, out bool addUsingDirective)

144ITypeSymbol modelStateDictionary, 191public ITypeSymbol ModelStateDictionary { get; }

15public static bool HasAttribute(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 18public static bool HasAttribute(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 21public static IEnumerable<AttributeData> GetAttributes(this ISymbol symbol, ITypeSymbol attribute) 32public static IEnumerable<AttributeData> GetAttributes(this IMethodSymbol methodSymbol, ITypeSymbol attribute, bool inherit) 54public static IEnumerable<AttributeData> GetAttributes(this ITypeSymbol typeSymbol, ITypeSymbol attribute, bool inherit) 59foreach (var type in GetTypeHierarchy(typeSymbol)) 73public static bool HasAttribute(this IPropertySymbol propertySymbol, ITypeSymbol attribute, bool inherit) 97public static bool IsAssignableFrom(this ITypeSymbol source, ITypeSymbol target) 120foreach (var type in target.GetTypeHierarchy()) 131public static bool HasAttribute(this ISymbol symbol, ITypeSymbol attribute) 144public static IEnumerable<ITypeSymbol> GetTypeHierarchy(this ITypeSymbol? typeSymbol)

184internal static bool IsTypeMatch(ITypeSymbol type, ITypeSymbol conventionType, SymbolApiConventionTypeMatchBehavior typeMatchBehavior)

43public static ITypeSymbol GetErrorResponseType( 52ITypeSymbol errorType = symbolCache.ProblemDetails; 56errorTypeAttribute.ConstructorArguments[0].Value is ITypeSymbol typeSymbol) 67IReadOnlyList<ITypeSymbol> conventionTypes) 99!(attribute.ConstructorArguments[0].Value is ITypeSymbol conventionType)) 119IReadOnlyList<ITypeSymbol> conventionTypes) 121foreach (var conventionType in conventionTypes) 161internal static IReadOnlyList<ITypeSymbol> GetConventionTypes(in ApiControllerSymbolCache symbolCache, IMethodSymbol method) 169var conventionTypes = new List<ITypeSymbol>(); 175!(attribute.ConstructorArguments[0].Value is ITypeSymbol conventionType))

72public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 74var results = ImmutableArray.CreateBuilder<ITypeSymbol>(); 87public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 183public static IEnumerable<INamedTypeSymbol> GetBaseTypes(this ITypeSymbol? type)

240var providerSymbols = new Dictionary<string, (ITypeSymbol, MemberAccessExpressionSyntax)>(); 246ITypeSymbol symbol; 252symbol = (ITypeSymbol)argModel.GetSymbolInfo(argType).Symbol;

228var hubSymbols = new Dictionary<string, (ITypeSymbol, MemberAccessExpressionSyntax)>(); 237if (ModelExtensions.GetSymbolInfo(argumentModel, proxyType).Symbol is not ITypeSymbol { IsAbstract: true } symbol)

1007internal abstract bool IsAttributeType(ITypeSymbol type); 1020public ITypeSymbol DynamicType { get { return CommonDynamicType; } } 1021protected abstract ITypeSymbol CommonDynamicType { get; } 1026internal ITypeSymbol? ScriptGlobalsType => CommonScriptGlobalsType; 1027protected abstract ITypeSymbol? CommonScriptGlobalsType { get; } 1085public IArrayTypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank = 1, NullableAnnotation elementNullableAnnotation = NullableAnnotation.None) 1095public IArrayTypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 1100protected abstract IArrayTypeSymbol CommonCreateArrayTypeSymbol(ITypeSymbol elementType, int rank, NullableAnnotation elementNullableAnnotation); 1107public IPointerTypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 1112protected abstract IPointerTypeSymbol CommonCreatePointerTypeSymbol(ITypeSymbol elementType); 1128ITypeSymbol returnType, 1130ImmutableArray<ITypeSymbol> parameterTypes, 1139ITypeSymbol returnType, 1141ImmutableArray<ITypeSymbol> parameterTypes, 1297ImmutableArray<ITypeSymbol> elementTypes, 1338ImmutableArray<ITypeSymbol> elementTypes, 1402ImmutableArray<ITypeSymbol> elementTypes, 1454ImmutableArray<ITypeSymbol> memberTypes, 1523ImmutableArray<ITypeSymbol> memberTypes, 1532ImmutableArray<ITypeSymbol> memberTypes, 1548public IMethodSymbol CreateBuiltinOperator(string name, ITypeSymbol returnType, ITypeSymbol leftType, ITypeSymbol rightType) 1564protected abstract IMethodSymbol CommonCreateBuiltinOperator(string name, ITypeSymbol returnType, ITypeSymbol leftType, ITypeSymbol rightType); 1575public IMethodSymbol CreateBuiltinOperator(string name, ITypeSymbol returnType, ITypeSymbol operandType) 1588protected abstract IMethodSymbol CommonCreateBuiltinOperator(string name, ITypeSymbol returnType, ITypeSymbol operandType); 1598public abstract CommonConversion ClassifyCommonConversion(ITypeSymbol source, ITypeSymbol destination); 1606public bool HasImplicitConversion(ITypeSymbol? fromType, ITypeSymbol? toType) 1629ITypeSymbol? throughType = null) 1758ITypeSymbol? throughType); 1760internal abstract IConvertibleConversion ClassifyConvertibleConversion(IOperation source, ITypeSymbol destination, out ConstantValue? constantValue); 3759internal string GetMessage(ITypeSymbol source, ITypeSymbol destination)

9public static ConstantValue SynthesizeNumeric(ITypeSymbol type, int value)

20public ITypeSymbol? Type { get; } 31public ITypeSymbol? ConvertedType { get; } 40internal TypeInfo(ITypeSymbol? type, ITypeSymbol? convertedType, NullabilityInfo nullability, NullabilityInfo convertedNullability)

273protected abstract void ReportInvalidNamedArgument(DiagnosticBag diagnostics, SyntaxNode attributeSyntax, int namedArgumentIndex, ITypeSymbol attributeClass, string parameterName); 275public void ReportInvalidNamedArgument(BindingDiagnosticBag diagnostics, SyntaxNode attributeSyntax, int namedArgumentIndex, ITypeSymbol attributeClass, string parameterName)

407var typeSymbol = result.Value.Type; 696private ITypeSymbol ParseArrayType(ITypeSymbol typeSymbol) 764var boundReturnType = BindParameterOrReturnType(methodSymbol, returnType.Value); 801var parameterType = BindParameterOrReturnType(symbol.ContainingSymbol, parameterInfo.Type); 806private ITypeSymbol BindParameterOrReturnType(ISymbol bindingContext, TypeInfo type) 868public readonly ITypeSymbol Type; 876private TypeInfo(ITypeSymbol type, int startIndex) 882public static TypeInfo Create(ITypeSymbol type)

887private static ITypeSymbol? ParseTypeSymbol(string id, ref int index, Compilation compilation, ISymbol? typeParameterContext) 899return (ITypeSymbol)results[0]; 941results.AddRange(contexts.OfType<ITypeSymbol>()); 967var typeSymbol = (ITypeSymbol)results[i]; 1045List<ITypeSymbol>? typeArguments = null; 1051typeArguments = new List<ITypeSymbol>(); 1144private static bool ParseTypeArguments(string id, ref int index, Compilation compilation, ISymbol? typeParameterContext, List<ITypeSymbol> typeArguments) 1150var type = ParseTypeSymbol(id, ref index, compilation, typeParameterContext); 1320ITypeSymbol? returnType = ParseTypeSymbol(id, ref index, compilation, methodSymbol); 1464var parameterType = parameterInfo.Type; 1500internal readonly ITypeSymbol Type; 1503public ParameterInfo(ITypeSymbol type, bool isRefOrOut) 1557var type = ParseTypeSymbol(id, ref index, compilation, typeParameterContext);

718ITypeSymbol? ConstrainedToType { get; } 781ITypeSymbol? ConstrainedToType { get; } 911ITypeSymbol? ConstrainedToType { get; } 1081ITypeSymbol? ConstrainedToType { get; } 1140ITypeSymbol? ConstrainedToType { get; } 1401ITypeSymbol TypeOperand { get; } 1533ITypeSymbol? ConstrainedToType { get; } 1838ITypeSymbol? NaturalType { get; } 1900ImmutableArray<ITypeSymbol> TypeArguments { get; } 1904ITypeSymbol? ContainingType { get; } 2076ITypeSymbol TypeOperand { get; } 2100ITypeSymbol TypeOperand { get; } 2203ITypeSymbol? ConstrainedToType { get; } 2612ITypeSymbol ExceptionType { get; } 2889ITypeSymbol InputType { get; } 2893ITypeSymbol NarrowedType { get; } 2941ITypeSymbol? MatchedType { get; } 3221ITypeSymbol MatchedType { get; } 3565ITypeSymbol MatchedType { get; } 3989ITypeSymbol? ElementType { get; } 4050public override ITypeSymbol? Type => null; 4105public override ITypeSymbol? Type => null; 4175public override ITypeSymbol? Type => null; 4281public override ITypeSymbol? Type => null; 4373public override ITypeSymbol? Type => null; 4485public override ITypeSymbol? Type => null; 4509public override ITypeSymbol? Type => null; 4562public override ITypeSymbol? Type => null; 4582public override ITypeSymbol? Type => null; 4596public override ITypeSymbol? Type => null; 4648public override ITypeSymbol? Type => null; 4712public override ITypeSymbol? Type => null; 4791public override ITypeSymbol? Type => null; 4859public override ITypeSymbol? Type => null; 4910public override ITypeSymbol? Type => null; 4974public override ITypeSymbol? Type => null; 4988public override ITypeSymbol? Type => null; 5002public override ITypeSymbol? Type => null; 5068public override ITypeSymbol? Type => null; 5076internal LiteralOperation(SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5086public override ITypeSymbol? Type { get; } 5094internal ConversionOperation(IOperation operand, IConvertibleConversion conversion, bool isTryCast, bool isChecked, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5146public override ITypeSymbol? Type { get; } 5154internal InvocationOperation(IMethodSymbol targetMethod, ITypeSymbol? constrainedToType, IOperation? instance, bool isVirtual, ImmutableArray<IArgumentOperation> arguments, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5165public ITypeSymbol? ConstrainedToType { get; } 5219public override ITypeSymbol? Type { get; } 5227internal ArrayElementReferenceOperation(IOperation arrayReference, ImmutableArray<IOperation> indices, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5286public override ITypeSymbol? Type { get; } 5294internal LocalReferenceOperation(ILocalSymbol local, bool isDeclaration, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5308public override ITypeSymbol? Type { get; } 5316internal ParameterReferenceOperation(IParameterSymbol parameter, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5327public override ITypeSymbol? Type { get; } 5341public abstract ITypeSymbol? ConstrainedToType { get; } 5345internal FieldReferenceOperation(IFieldSymbol field, bool isDeclaration, IOperation? instance, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5392public override ITypeSymbol? Type { get; } 5400internal MethodReferenceOperation(IMethodSymbol method, ITypeSymbol? constrainedToType, bool isVirtual, IOperation? instance, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5409public override ITypeSymbol? ConstrainedToType { get; } 5448public override ITypeSymbol? Type { get; } 5456internal PropertyReferenceOperation(IPropertySymbol property, ITypeSymbol? constrainedToType, ImmutableArray<IArgumentOperation> arguments, IOperation? instance, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5465public override ITypeSymbol? ConstrainedToType { get; } 5517public override ITypeSymbol? Type { get; } 5525internal EventReferenceOperation(IEventSymbol @event, ITypeSymbol? constrainedToType, IOperation? instance, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 5533public override ITypeSymbol? ConstrainedToType { get; } 5571public override ITypeSymbol? Type { get; } 5579internal UnaryOperation(UnaryOperatorKind operatorKind, IOperation operand, bool isLifted, bool isChecked, IMethodSymbol? operatorMethod, ITypeSymbol? constrainedToType, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5596public ITypeSymbol? ConstrainedToType { get; } 5634public override ITypeSymbol? Type { get; } 5642internal BinaryOperation(BinaryOperatorKind operatorKind, IOperation leftOperand, IOperation rightOperand, bool isLifted, bool isChecked, bool isCompareText, IMethodSymbol? operatorMethod, ITypeSymbol? constrainedToType, IMethodSymbol? unaryOperatorMethod, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5664public ITypeSymbol? ConstrainedToType { get; } 5712public override ITypeSymbol? Type { get; } 5720internal ConditionalOperation(IOperation condition, IOperation whenTrue, IOperation? whenFalse, bool isRef, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5789public override ITypeSymbol? Type { get; } 5797internal CoalesceOperation(IOperation value, IOperation whenNull, IConvertibleConversion valueConversion, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5856public override ITypeSymbol? Type { get; } 5909public override ITypeSymbol? Type => null; 5917internal ObjectCreationOperation(IMethodSymbol? constructor, IObjectOrCollectionInitializerOperation? initializer, ImmutableArray<IArgumentOperation> arguments, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 5979public override ITypeSymbol? Type { get; } 5987internal TypeParameterObjectCreationOperation(IObjectOrCollectionInitializerOperation? initializer, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6031public override ITypeSymbol? Type { get; } 6039internal ArrayCreationOperation(ImmutableArray<IOperation> dimensionSizes, IArrayInitializerOperation? initializer, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6098public override ITypeSymbol? Type { get; } 6106internal InstanceReferenceOperation(InstanceReferenceKind referenceKind, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6117public override ITypeSymbol? Type { get; } 6125internal IsTypeOperation(IOperation valueOperand, ITypeSymbol typeOperand, bool isNegated, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6134public ITypeSymbol TypeOperand { get; } 6173public override ITypeSymbol? Type { get; } 6181internal AwaitOperation(IOperation operation, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6225public override ITypeSymbol? Type { get; } 6244internal SimpleAssignmentOperation(bool isRef, IOperation target, IOperation value, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 6298public override ITypeSymbol? Type { get; } 6306internal CompoundAssignmentOperation(IConvertibleConversion inConversion, IConvertibleConversion outConversion, BinaryOperatorKind operatorKind, bool isLifted, bool isChecked, IMethodSymbol? operatorMethod, ITypeSymbol? constrainedToType, IOperation target, IOperation value, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6326public ITypeSymbol? ConstrainedToType { get; } 6373public override ITypeSymbol? Type { get; } 6381internal ParenthesizedOperation(IOperation operand, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 6426public override ITypeSymbol? Type { get; } 6434internal EventAssignmentOperation(IOperation eventReference, IOperation handlerValue, bool adds, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6491public override ITypeSymbol? Type { get; } 6499internal ConditionalAccessOperation(IOperation operation, IOperation whenNotNull, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6554public override ITypeSymbol? Type { get; } 6562internal ConditionalAccessInstanceOperation(SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6571public override ITypeSymbol? Type { get; } 6579internal InterpolatedStringOperation(ImmutableArray<IInterpolatedStringContentOperation> parts, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 6628public override ITypeSymbol? Type { get; } 6636internal AnonymousObjectCreationOperation(ImmutableArray<IOperation> initializers, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6684public override ITypeSymbol? Type { get; } 6692internal ObjectOrCollectionInitializerOperation(ImmutableArray<IOperation> initializers, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6740public override ITypeSymbol? Type { get; } 6748internal MemberInitializerOperation(IOperation initializedMember, IObjectOrCollectionInitializerOperation initializer, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6803public override ITypeSymbol? Type { get; } 6811internal NameOfOperation(IOperation argument, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 6856public override ITypeSymbol? Type { get; } 6864internal TupleOperation(ImmutableArray<IOperation> elements, ITypeSymbol? naturalType, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6872public ITypeSymbol? NaturalType { get; } 6914public override ITypeSymbol? Type { get; } 6922internal DynamicMemberReferenceOperation(IOperation? instance, string memberName, ImmutableArray<ITypeSymbol> typeArguments, ITypeSymbol? containingType, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 6933public ImmutableArray<ITypeSymbol> TypeArguments { get; } 6934public ITypeSymbol? ContainingType { get; } 6972public override ITypeSymbol? Type { get; } 6980internal TranslatedQueryOperation(IOperation operation, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7024public override ITypeSymbol? Type { get; } 7032internal DelegateCreationOperation(IOperation target, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7076public override ITypeSymbol? Type { get; } 7084internal DefaultValueOperation(SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 7094public override ITypeSymbol? Type { get; } 7102internal TypeOfOperation(ITypeSymbol typeOperand, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7108public ITypeSymbol TypeOperand { get; } 7113public override ITypeSymbol? Type { get; } 7121internal SizeOfOperation(ITypeSymbol typeOperand, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 7128public ITypeSymbol TypeOperand { get; } 7133public override ITypeSymbol? Type { get; } 7141internal AddressOfOperation(IOperation reference, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7185public override ITypeSymbol? Type { get; } 7193internal IsPatternOperation(IOperation value, IPatternOperation pattern, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7248public override ITypeSymbol? Type { get; } 7256internal IncrementOrDecrementOperation(bool isPostfix, bool isLifted, bool isChecked, IOperation target, IMethodSymbol? operatorMethod, ITypeSymbol? constrainedToType, OperationKind kind, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7273public ITypeSymbol? ConstrainedToType { get; } 7311public override ITypeSymbol? Type { get; } 7319internal ThrowOperation(IOperation? exception, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7363public override ITypeSymbol? Type { get; } 7371internal DeconstructionAssignmentOperation(IOperation target, IOperation value, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7422public override ITypeSymbol? Type { get; } 7430internal DeclarationExpressionOperation(IOperation expression, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7474public override ITypeSymbol? Type { get; } 7482internal OmittedArgumentOperation(SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 7491public override ITypeSymbol? Type { get; } 7553public override ITypeSymbol? Type => null; 7600public override ITypeSymbol? Type => null; 7651public override ITypeSymbol? Type => null; 7702public override ITypeSymbol? Type => null; 7757public override ITypeSymbol? Type => null; 7825public override ITypeSymbol? Type => null; 7906public override ITypeSymbol? Type => null; 7967public override ITypeSymbol? Type => null; 7975internal CatchClauseOperation(IOperation? exceptionDeclarationOrExpression, ITypeSymbol exceptionType, ImmutableArray<ILocalSymbol> locals, IOperation? filter, IBlockOperation handler, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 7985public ITypeSymbol ExceptionType { get; } 8044public override ITypeSymbol? Type => null; 8118public override ITypeSymbol? Type => null; 8142public override ITypeSymbol? Type => null; 8205public override ITypeSymbol? Type => null; 8267public override ITypeSymbol? Type => null; 8320public override ITypeSymbol? Type => null; 8371public override ITypeSymbol? Type => null; 8427public override ITypeSymbol? Type => null; 8500public override ITypeSymbol? Type => null; 8508protected BasePatternOperation(ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 8514public ITypeSymbol InputType { get; } 8515public ITypeSymbol NarrowedType { get; } 8519internal ConstantPatternOperation(IOperation value, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 8562public override ITypeSymbol? Type => null; 8570internal DeclarationPatternOperation(ITypeSymbol? matchedType, bool matchesNull, ISymbol? declaredSymbol, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 8577public ITypeSymbol? MatchedType { get; } 8584public override ITypeSymbol? Type => null; 8592internal TupleBinaryOperation(BinaryOperatorKind operatorKind, IOperation leftOperand, IOperation rightOperand, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 8649public override ITypeSymbol? Type { get; } 8716public override ITypeSymbol? Type => null; 8787public override ITypeSymbol? Type => null; 8795internal DiscardOperation(IDiscardSymbol discardSymbol, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 8806public override ITypeSymbol? Type { get; } 8859public override ITypeSymbol? Type => null; 8867internal FlowCaptureReferenceOperation(CaptureId id, bool isInitialization, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 8881public override ITypeSymbol? Type { get; } 8889internal IsNullOperation(IOperation operand, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) 8934public override ITypeSymbol? Type { get; } 8942internal CaughtExceptionOperation(SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 8951public override ITypeSymbol? Type { get; } 8959internal StaticLocalInitializationSemaphoreOperation(ILocalSymbol local, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 8970public override ITypeSymbol? Type { get; } 8978internal CoalesceAssignmentOperation(IOperation target, IOperation value, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9029public override ITypeSymbol? Type { get; } 9037internal RangeOperation(IOperation? leftOperand, IOperation? rightOperand, bool isLifted, IMethodSymbol? method, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9096public override ITypeSymbol? Type { get; } 9153public override ITypeSymbol? Type => null; 9219public override ITypeSymbol? Type => null; 9227internal RecursivePatternOperation(ITypeSymbol matchedType, ISymbol? deconstructSymbol, ImmutableArray<IPatternOperation> deconstructionSubpatterns, ImmutableArray<IPropertySubpatternOperation> propertySubpatterns, ISymbol? declaredSymbol, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 9236public ITypeSymbol MatchedType { get; } 9295public override ITypeSymbol? Type => null; 9303internal DiscardPatternOperation(ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 9309public override ITypeSymbol? Type => null; 9317internal SwitchExpressionOperation(IOperation value, ImmutableArray<ISwitchExpressionArmOperation> arms, bool isExhaustive, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9378public override ITypeSymbol? Type { get; } 9453public override ITypeSymbol? Type => null; 9515public override ITypeSymbol? Type => null; 9523internal AggregateQueryOperation(IOperation group, IOperation aggregation, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9578public override ITypeSymbol? Type { get; } 9642public override ITypeSymbol? Type => null; 9650internal NoPiaObjectCreationOperation(IObjectOrCollectionInitializerOperation? initializer, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9694public override ITypeSymbol? Type { get; } 9702internal PlaceholderOperation(PlaceholderKind placeholderKind, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 9713public override ITypeSymbol? Type { get; } 9775public override ITypeSymbol? Type => null; 9830public override ITypeSymbol? Type => null; 9838internal NegatedPatternOperation(IPatternOperation pattern, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 9881public override ITypeSymbol? Type => null; 9889internal BinaryPatternOperation(BinaryOperatorKind operatorKind, IPatternOperation leftPattern, IPatternOperation rightPattern, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 9945public override ITypeSymbol? Type => null; 9953internal TypePatternOperation(ITypeSymbol matchedType, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 9958public ITypeSymbol MatchedType { get; } 9963public override ITypeSymbol? Type => null; 9971internal RelationalPatternOperation(BinaryOperatorKind operatorKind, IOperation value, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 10016public override ITypeSymbol? Type => null; 10024internal WithOperation(IOperation operand, IMethodSymbol? cloneMethod, IObjectOrCollectionInitializerOperation initializer, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10081public override ITypeSymbol? Type { get; } 10089internal InterpolatedStringHandlerCreationOperation(IOperation handlerCreation, bool handlerCreationHasSuccessParameter, bool handlerAppendCallsReturnBool, IOperation content, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10148public override ITypeSymbol? Type { get; } 10210public override ITypeSymbol? Type => null; 10262public override ITypeSymbol? Type => null; 10282public override ITypeSymbol? Type => null; 10290internal FunctionPointerInvocationOperation(IOperation target, ImmutableArray<IArgumentOperation> arguments, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10349public override ITypeSymbol? Type { get; } 10357internal ListPatternOperation(ISymbol? lengthSymbol, ISymbol? indexerSymbol, ImmutableArray<IPatternOperation> patterns, ISymbol? declaredSymbol, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 10410public override ITypeSymbol? Type => null; 10418internal SlicePatternOperation(ISymbol? sliceSymbol, IPatternOperation? pattern, ITypeSymbol inputType, ITypeSymbol narrowedType, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 10463public override ITypeSymbol? Type => null; 10471internal ImplicitIndexerReferenceOperation(IOperation instance, IOperation argument, ISymbol lengthSymbol, ISymbol indexerSymbol, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10530public override ITypeSymbol? Type { get; } 10538internal Utf8StringOperation(string value, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10549public override ITypeSymbol? Type { get; } 10600public override ITypeSymbol? Type => null; 10608internal InlineArrayAccessOperation(IOperation instance, IOperation argument, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10663public override ITypeSymbol? Type { get; } 10671internal CollectionExpressionOperation(IMethodSymbol? constructMethod, ImmutableArray<IOperation> elements, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) 10721public override ITypeSymbol? Type { get; } 10729internal SpreadOperation(IOperation operand, ITypeSymbol? elementType, IConvertibleConversion elementConversion, SemanticModel? semanticModel, SyntaxNode syntax, bool isImplicit) 10737public ITypeSymbol? ElementType { get; } 10777public override ITypeSymbol? Type => null;

32internal CommonConversion(bool exists, bool isIdentity, bool isNumeric, bool isReference, bool isImplicit, bool isNullable, IMethodSymbol? methodSymbol, ITypeSymbol? constrainedToType) 86public ITypeSymbol? ConstrainedToType { get; }

2456private IOperation CreateConversion(IOperation operand, ITypeSymbol type) 2988ITypeSymbol? valueTypeOpt = operationValue.Type; 3288private static IOperation MakeInvalidOperation(ITypeSymbol? type, IOperation child) 3295private static IOperation MakeInvalidOperation(SyntaxNode syntax, ITypeSymbol? type, IOperation child1, IOperation child2) 3300private static IOperation MakeInvalidOperation(SyntaxNode syntax, ITypeSymbol? type, ImmutableArray<IOperation> children) 3312private static IsNullOperation MakeIsNullOperation(IOperation operand, ITypeSymbol booleanType) 3330ITypeSymbol? valueType = value.Type; 3531ITypeSymbol? testExpressionType = testExpression.Type; 3785private void AddExceptionStore(ITypeSymbol exceptionType, IOperation? exceptionDeclarationOrExpression) 3961ITypeSymbol iDisposable = isAsynchronous 4112private void AddDisposingFinally(IOperation resource, bool requiresRuntimeConversion, ITypeSymbol iDisposable, IMethodSymbol? disposeMethod, ImmutableArray<IArgumentOperation> disposeArguments, bool isAsynchronous) 4204bool isNotNullableValueType([NotNullWhen(true)] ITypeSymbol? type) 4210private IOperation ConvertToIDisposable(IOperation operand, ITypeSymbol iDisposable, bool isTryCast = false) 4273ITypeSymbol objectType = _compilation.GetSpecialType(SpecialType.System_Object); 4537var iDisposable = isAsynchronous 4559IOperation applyConversion(IConvertibleConversion? conversionOpt, IOperation operand, ITypeSymbol? targetType) 4742ITypeSymbol booleanType = _compilation.GetSpecialType(SpecialType.System_Boolean); 4755ITypeSymbol? stepEnumUnderlyingTypeOrSelf = ITypeSymbolHelpers.GetEnumUnderlyingTypeOrSelf(operation.StepValue.Type); 4926ITypeSymbol? stepValueEnumUnderlyingTypeOrSelf = ITypeSymbolHelpers.GetEnumUnderlyingTypeOrSelf(stepValue.Type); 5662private IOperation MakeNullable(IOperation operand, ITypeSymbol type) 5832ITypeSymbol booleanType = _compilation.GetSpecialType(SpecialType.System_Boolean);

19public readonly ITypeSymbol? ExceptionType; 31public RegionBuilder(ControlFlowRegionKind kind, ITypeSymbol? exceptionType = null, ImmutableArray<ILocalSymbol> locals = default, bool isStackSpillRegion = false)

31public ITypeSymbol? ExceptionType { get; } 68ITypeSymbol? exceptionType,

40ITypeSymbol? Type { get; }

15public readonly ITypeSymbol ElementType; 44ITypeSymbol elementType,

75public abstract ITypeSymbol? Type { get; }

18public NoneOperation(ImmutableArray<IOperation> children, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) : 64public override ITypeSymbol? Type { get; } 82public ITypeSymbol? ConstrainedToType => Conversion.ConstrainedToType; 87public InvalidOperation(ImmutableArray<IOperation> children, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isImplicit) : 135public override ITypeSymbol? Type { get; } 169public override ITypeSymbol? Type => null; 205public override ITypeSymbol? ConstrainedToType => null; 235protected HasDynamicArgumentsExpression(ImmutableArray<IOperation> arguments, ImmutableArray<string?> argumentNames, ImmutableArray<RefKind> argumentRefKinds, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) : 247public override ITypeSymbol? Type { get; } 252public DynamicObjectCreationOperation(IObjectOrCollectionInitializerOperation? initializer, ImmutableArray<IOperation> arguments, ImmutableArray<string?> argumentNames, ImmutableArray<RefKind> argumentRefKinds, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) : 334public DynamicInvocationOperation(IOperation operation, ImmutableArray<IOperation> arguments, ImmutableArray<string?> argumentNames, ImmutableArray<RefKind> argumentRefKinds, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) : 416public DynamicIndexerAccessOperation(IOperation operation, ImmutableArray<IOperation> arguments, ImmutableArray<string?> argumentNames, ImmutableArray<RefKind> argumentRefKinds, SemanticModel? semanticModel, SyntaxNode syntax, ITypeSymbol? type, bool isImplicit) : 641public FlowCaptureReferenceOperation(int id, SyntaxNode syntax, ITypeSymbol? type, ConstantValue? constantValue, bool isInitialization = false) : 658public IsNullOperation(SyntaxNode syntax, IOperation operand, ITypeSymbol type, ConstantValue? constantValue) : 667public CaughtExceptionOperation(SyntaxNode syntax, ITypeSymbol type) : 675public StaticLocalInitializationSemaphoreOperation(ILocalSymbol local, SyntaxNode syntax, ITypeSymbol type) :

133protected void AddNonNullConstantValue(ITypeSymbol type, object constantValue, bool preferNumericValueOrExpandedFlagsForEnum = false) 181private static bool IsFlagsEnum(ITypeSymbol typeSymbol)

52var type1 = GetSymbolType(normalSymbol); 53var type2 = GetSymbolType(typeOnlySymbol); 97protected static ITypeSymbol? GetSymbolType(ISymbol symbol) 126return aliasSymbol.Target as ITypeSymbol; 129return symbol as ITypeSymbol;

29/// For example, the <see cref="ITypeSymbol"/> associated with a class name.

50ITypeSymbol ElementType { get; }

18ITypeSymbol Type { get; }

22ITypeSymbol Type { get; }

77ITypeSymbol Type { get; }

19ITypeSymbol Type { get; }

100ITypeSymbol ReturnType { get; } 112ImmutableArray<ITypeSymbol> TypeArguments { get; } 170ITypeSymbol? ReceiverType { get; } 191ITypeSymbol? GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter); 197IMethodSymbol? ReduceExtensionMethod(ITypeSymbol receiverType); 253IMethodSymbol Construct(params ITypeSymbol[] typeArguments); 258IMethodSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<NullableAnnotation> typeArgumentNullableAnnotations);

81ImmutableArray<ITypeSymbol> TypeArguments { get; } 131INamedTypeSymbol Construct(params ITypeSymbol[] typeArguments); 136INamedTypeSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<NullableAnnotation> typeArgumentNullableAnnotations);

63ITypeSymbol Type { get; }

23ITypeSymbol PointedAtType { get; }

63ITypeSymbol Type { get; }

33var typeArgs = new ITypeSymbol[reducedFrom.TypeParameters.Length]; 38var arg = method.TypeArguments[i]; 54var inferredType = method.GetTypeInferredDuringReduction(reducedFrom.TypeParameters[i]); 123internal static bool IsWellKnownTypeLock(this ITypeSymbol type) 143internal static LockTypeInfo? TryFindLockTypeInfo(this ITypeSymbol lockType) 151ITypeSymbol? scopeType = enterScopeMethod.ReturnType; 172private static IMethodSymbol? TryFindPublicVoidParameterlessMethod(ITypeSymbol type, string name)

85ImmutableArray<ITypeSymbol> ConstraintTypes { get; }

95new ITypeSymbol OriginalDefinition { get; } 202ITypeSymbol WithNullableAnnotation(NullableAnnotation nullableAnnotation); 209internal static bool IsNullableType([NotNullWhen(returnValue: true)] ITypeSymbol? typeOpt) 214internal static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] ITypeSymbol? type) 219internal static ITypeSymbol GetNullableUnderlyingType(ITypeSymbol type) 225internal static bool IsBooleanType([NotNullWhen(returnValue: true)] ITypeSymbol? type) 230internal static bool IsObjectType([NotNullWhen(returnValue: true)] ITypeSymbol? type) 235internal static bool IsSignedIntegralType([NotNullWhen(returnValue: true)] ITypeSymbol? type) 240internal static bool IsUnsignedIntegralType([NotNullWhen(returnValue: true)] ITypeSymbol? type) 245internal static bool IsNumericType([NotNullWhen(returnValue: true)] ITypeSymbol? type) 250internal static ITypeSymbol? GetEnumUnderlyingType(ITypeSymbol? type) 256internal static ITypeSymbol? GetEnumUnderlyingTypeOrSelf(ITypeSymbol? type) 261internal static bool IsDynamicType([NotNullWhen(returnValue: true)] ITypeSymbol? type)

39/// Returns an <see cref="ITypeSymbol"/> instance associated with this symbol. 42ITypeSymbol GetITypeSymbol();

31/// ignoring the <see cref="ITypeSymbol"/> to which it is attached. It should only be used when converting

48/// Returns the <see cref="ITypeSymbol"/> of the constant, 51public ITypeSymbol? Type

25Debug.Assert(value == null || value is string || value.GetType().GetTypeInfo().IsEnum || (value.GetType().GetTypeInfo().IsPrimitive && !(value is System.IntPtr) && !(value is System.UIntPtr)) || value is ITypeSymbol);

289private static bool IsSymbolType(ITypeSymbol typeSymbol, INamedTypeSymbol? symbolType)

259private static void AddUsedNamedTypeCore(ITypeSymbol? type, PooledHashSet<INamedTypeSymbol> builder, ref bool hasAccessToTypeFromWorkspaceAssemblies) 275foreach (var typeArgument in usedType.TypeArguments)

135ITypeSymbol? type = semanticModel.GetTypeInfo(typeNode, symbolContext.CancellationToken).Type; 138foreach (ITypeSymbol innerType in type.GetBaseTypesAndThis()) 165private static void ReportDiagnostic(ITypeSymbol type, TTypeSyntax typeSyntax, SymbolAnalysisContext context)

234protected abstract bool IsSyntaxKind(ITypeSymbol type); 285private static bool IsContextType(ITypeSymbol type, params INamedTypeSymbol[] allowedContextTypes) 336ITypeSymbol? type = semanticModel.GetTypeInfo(arguments.First(), context.CancellationToken).ConvertedType; 382ITypeSymbol? typeArgument = null;

213ITypeSymbol? type = semanticModel.GetTypeInfo(argument, symbolContext.CancellationToken).ConvertedType;

252bool VerifyType(Action<Diagnostic> reportDiagnostic, ITypeSymbol? type, SyntaxNode syntaxNode) 310bool VerifyTypeArguments(Action<Diagnostic> reportDiagnostic, ITypeSymbol? type, SyntaxNode syntaxNode, out ITypeSymbol? originalDefinition) 316foreach (var typeArgument in namedTypeSymbol.TypeArguments) 381if (symbol is ITypeSymbol typeSymbol) 397if (symbol is ITypeSymbol typeSymbol)

49ITypeSymbol coupledType) 349private static void AddCoupledNamedTypesCore(ImmutableHashSet<INamedTypeSymbol>.Builder builder, ITypeSymbol typeOpt, 363foreach (var type in usedType.TypeArguments)

89public static bool IsImplementationOfInterfaceMethod(this IMethodSymbol method, ITypeSymbol? typeArgument, [NotNullWhen(returnValue: true)] INamedTypeSymbol? interfaceType, string interfaceMethodName)

29public static ITypeSymbol? GetReceiverType(this IInvocationOperation invocation, Compilation compilation, bool beforeConversion, CancellationToken cancellationToken) 55private static ITypeSymbol? GetReceiverType(SyntaxNode receiverSyntax, Compilation compilation, CancellationToken cancellationToken) 391public static ITypeSymbol? GetPatternType(this IPatternOperation pattern) 467public static ITypeSymbol? GetThrownExceptionType(this IThrowOperation operation)

110var type1 = parameter1.Type.OriginalDefinition; 111var type2 = parameter2.Type.OriginalDefinition; 216public static ITypeSymbol? GetMemberOrLocalOrParameterType(this ISymbol symbol) 292public static bool HasDerivedTypeAttribute(this ITypeSymbol symbol, [NotNullWhen(returnValue: true)] INamedTypeSymbol? attribute) 377ITypeSymbol type => type.IsReadOnly,

18public static bool IsPrimitiveType(this ITypeSymbol type) 39public static bool Inherits([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? possibleBase) 64public static bool DerivesFrom([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol, [NotNullWhen(returnValue: true)] ITypeSymbol? candidateBaseType, bool baseTypesOnly = false, bool checkTypeParameterConstraints = true) 73var allInterfaces = symbol.AllInterfaces.OfType<ITypeSymbol>(); 89foreach (var constraintType in typeParameterSymbol.ConstraintTypes) 115public static bool IsDisposable(this ITypeSymbol type, 138static bool IsInterfaceOrImplementsInterface(ITypeSymbol type, INamedTypeSymbol? interfaceType) 248public static bool HasValueCopySemantics(this ITypeSymbol typeSymbol) 251public static bool CanHoldNullValue([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 256public static bool IsNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 259public static bool IsReferenceTypeOrNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 262public static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 265public static ITypeSymbol? GetUnderlyingValueTupleTypeOrThis(this ITypeSymbol? typeSymbol)

14/// <see cref="IComparer{T}"/> for <see cref="ITypeSymbol"/>s sorted by display strings. 17internal sealed class SymbolByDisplayStringComparer : IComparer<ITypeSymbol> 50public int Compare([AllowNull] ITypeSymbol x, [AllowNull] ITypeSymbol y)

203internal bool IsTaskOfType([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol, bool> typeArgumentPredicate)

137public static string GenerateNameFromType(this SemanticModel semanticModel, ITypeSymbol type, ISyntaxFacts syntaxFacts, bool capitalize) 168private static bool ShouldPluralize(this SemanticModel semanticModel, ITypeSymbol type) 183ImmutableArray<ITypeSymbol> typeArguments, 218public static ITypeSymbol GetType(

362SymbolCategory.Type => symbol is ITypeSymbol type && type.TypeKind == (TypeKind)_kind,

12ITypeSymbol? elementType) 18public readonly ITypeSymbol? ElementType = elementType;

118private static bool IsFloatingPoint([NotNullWhen(returnValue: true)] ITypeSymbol? type)

40using var propertyTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

32foreach (var typeSymbol in elementTypeResolution.OfType<ITypeSymbol>())

28using var parameterTypes = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 45var returnTypeSymbol = (ITypeSymbol?)returnType.GetAnySymbol();

44visitor.WriteSymbolKeyArray(ImmutableArray<ITypeSymbol>.Empty); 72using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

56using var parameterTypes = reader.ReadSymbolKeyArray<IFunctionPointerTypeSymbol, ITypeSymbol>( 76if (returnType.GetAnySymbol() is not ITypeSymbol returnTypeSymbol)

44foreach (var receiverType in receiverTypeResolution.OfType<ITypeSymbol>()) 70using var typeArguments = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 223_ = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 246var returnType = (ITypeSymbol?)reader.ReadSymbolKey(contextualSymbol: method.ReturnType, out _).GetAnySymbol();

48using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>( 95ITypeSymbol[] typeArgumentsArray, 146ITypeSymbol[] typeArguments, 200private static INamedTypeSymbol Construct(INamedTypeSymbol type, bool isUnboundGenericType, ITypeSymbol[] typeArguments)

34foreach (var typeSymbol in pointedAtTypeResolution.OfType<ITypeSymbol>())

71_ = reader.ReadSymbolKeyArray<IPropertySymbol, ITypeSymbol>(

383Func<TOwningSymbol, int, ITypeSymbol?> getContextualType, 387using var originalParameterTypes = this.ReadSymbolKeyArray<TOwningSymbol, ITypeSymbol>(owningSymbol, getContextualType, out _);

96using var elementTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

102protected abstract TConversion ClassifyConversion(SemanticModel model, TExpressionSyntax expression, ITypeSymbol targetType); 103protected abstract TConversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType); 105protected abstract bool ConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType); 106protected abstract bool IsReferenceConversion(Compilation model, ITypeSymbol sourceType, ITypeSymbol targetType); 112SemanticModel model, TForEachStatementSyntax forEach, out IMethodSymbol getEnumeratorMethod, out ITypeSymbol elementType, out ImmutableArray<ILocalSymbol> localVariables); 305private bool ImplicitConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType) 740var previousOriginalType = this.OriginalSemanticModel.GetTypeInfo(previousOriginalNode).Type; 741var previousReplacedType = this.SpeculativeSemanticModel.GetTypeInfo(previousReplacedNode).Type; 780GetForEachSymbols(this.OriginalSemanticModel, forEachStatement, out var originalGetEnumerator, out var originalElementType, out var originalLocalVariables); 781GetForEachSymbols(this.SpeculativeSemanticModel, newForEachStatement, out var newGetEnumerator, out var newElementType, out var newLocalVariables); 826var expressionType = this.SpeculativeSemanticModel.GetTypeInfo(newForEachStatementExpression, CancellationToken).ConvertedType; 849var originalThrowExpressionType = this.OriginalSemanticModel.GetTypeInfo(originalThrowExpression).Type; 851var newThrowExpressionType = this.SpeculativeSemanticModel.GetTypeInfo(newThrowExpression).Type; 961var originalTargetType = this.OriginalSemanticModel.GetTypeInfo(originalLeft).Type; 964var newTargetType = this.SpeculativeSemanticModel.GetTypeInfo(newLeft).Type; 997var newReceiverType = newReceiver != null 1036var receiverType = semanticModel.GetTypeInfo(receiver).Type; 1196ITypeSymbol originalTargetType, 1198ITypeSymbol newTargetType, 1213var originalConvertedTypeSymbol = this.OriginalSemanticModel.GetTypeInfo(originalExpression).ConvertedType; 1219var newConvertedTypeSymbol = this.SpeculativeSemanticModel.GetTypeInfo(newExpression).ConvertedType;

39public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this INamedTypeSymbol? symbol) 669public static INamedTypeSymbol TryConstruct(this INamedTypeSymbol type, ITypeSymbol[] typeArguments)

226=> symbol is ITypeSymbol { TypeKind: TypeKind.Error }; 229=> symbol is ITypeSymbol { TypeKind: TypeKind.Module }; 232=> symbol is ITypeSymbol { TypeKind: TypeKind.Interface }; 238=> symbol is ITypeSymbol { IsTupleType: true }; 308=> symbol is ITypeSymbol { TypeKind: TypeKind.Delegate }; 339public static ITypeSymbol? GetMemberType(this ISymbol? symbol) 452public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 460public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 462var results = ArrayBuilder<ITypeSymbol>.GetInstance(); 476=> (symbol as ITypeSymbol)?.IsAttribute() == true; 490public static ITypeSymbol ConvertToType( 495if (symbol is ITypeSymbol type) 564public static Accessibility ComputeResultantAccessibility(this ISymbol? symbol, ITypeSymbol finalDestination) 623public static ITypeSymbol? GetSymbolType(this ISymbol? symbol) 630IAliasSymbol aliasSymbol => aliasSymbol.Target as ITypeSymbol, 631_ => symbol as ITypeSymbol, 642ITypeSymbol? typeSymbol = null; 646typeSymbol = symbol as ITypeSymbol; 675var returnType = getAwaiter.ReturnType; 709var returnType = getEnumerator.ReturnType; 749var returnType = getAsyncEnumerator.ReturnType;

21ITypeSymbol? throughType = null) 43ITypeSymbol? throughType = null) 55ITypeSymbol? throughType = null) 68ITypeSymbol? throughType, 87ITypeSymbol? throughType, 191foreach (var typeArg in type.TypeArguments) 251ITypeSymbol? throughType, 336ITypeSymbol? throughType, 376var originalThroughType = throughType?.OriginalDefinition;

11ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank); 12ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType); 13ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments);

17private static INamedTypeSymbol? GetNamedTypeSymbol(ITypeSymbol type)

15private sealed class AnonymousTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 17public override ITypeSymbol DefaultVisit(ISymbol node) 20public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 23public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 25var elementType = symbol.ElementType.Accept(this); 34public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

61foreach (var child in symbol.GetAllTypeArguments()) 90foreach (var constraint in symbol.ConstraintTypes)

13public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 16public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 19public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

26public static bool IsIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 29public static bool IsSignedIntegralType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 32public static bool CanAddNullCheck([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 43public static ImmutableArray<INamedTypeSymbol> GetAllInterfacesIncludingThis(this ITypeSymbol type) 51public static bool IsAbstractClass([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 54public static bool IsSystemVoid([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 57public static bool IsNullable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 60public static bool IsNonNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 64[NotNullWhen(true)] this ITypeSymbol? symbol, 65[NotNullWhen(true)] out ITypeSymbol? underlyingType) 77public static bool IsModuleType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 80public static bool IsInterfaceType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 83public static bool IsDelegateType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 86public static bool IsFunctionPointerType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 89public static bool IsStructType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 96this ITypeSymbol type, 110public static IEnumerable<ITypeSymbol> GetBaseTypesAndThis(this ITypeSymbol? type) 112var current = type; 120public static IEnumerable<INamedTypeSymbol> GetBaseTypes(this ITypeSymbol? type) 130public static IEnumerable<ITypeSymbol> GetContainingTypesAndThis(this ITypeSymbol? type) 132var current = type; 140public static IEnumerable<INamedTypeSymbol> GetContainingTypes(this ITypeSymbol type) 153this ITypeSymbol type, ITypeSymbol baseType, bool includeInterfaces) 166this ITypeSymbol type, ITypeSymbol baseType) 174this ITypeSymbol type, ITypeSymbol baseType) 176var originalBaseType = baseType.OriginalDefinition; 184IEnumerable<ITypeSymbol> baseTypes = (baseType.TypeKind == TypeKind.Interface) ? type.AllInterfaces : type.GetBaseTypes(); 191this ITypeSymbol type, ITypeSymbol baseType) 193var originalBaseType = baseType.OriginalDefinition; 213this ITypeSymbol type, ITypeSymbol interfaceType) 215var originalInterfaceType = interfaceType.OriginalDefinition; 220this ITypeSymbol type, ITypeSymbol interfaceType) 225public static bool IsAttribute(this ITypeSymbol symbol) 243public static bool IsFormattableStringOrIFormattable([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 252this ITypeSymbol typeSymbol, bool allowDelegateAndEnumConstraints = false) 280public static bool IsNumericType([NotNullWhen(returnValue: true)] this ITypeSymbol? type) 306public static Accessibility DetermineMinimalAccessibility(this ITypeSymbol typeSymbol) 309public static bool ContainsAnonymousType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 325foreach (var typeArg in type.GetAllTypeArguments()) 334public static string CreateParameterName(this ITypeSymbol type, bool capitalize = false) 355private static string GetParameterName(ITypeSymbol? type) 368public static bool IsSpecialType([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol) 399public static bool CanSupportCollectionInitializer(this ITypeSymbol typeSymbol, ISymbol within) 410public static INamedTypeSymbol? GetDelegateType(this ITypeSymbol? typeSymbol, Compilation compilation) 417var typeArgument = ((INamedTypeSymbol)typeSymbol).TypeArguments[0]; 430public static IEnumerable<T> GetAccessibleMembersInBaseTypes<T>(this ITypeSymbol containingType, ISymbol within) where T : class, ISymbol 439public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, ISymbol within) where T : class, ISymbol 449public static ImmutableArray<T> GetAccessibleMembersInThisAndBaseTypes<T>(this ITypeSymbol? containingType, string memberName, ISymbol within) where T : class, ISymbol 459public static bool? AreMoreSpecificThan(this IList<ITypeSymbol> t1, IList<ITypeSymbol> t2) 494public static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, ISymbol within) where T : class, ISymbol 504private static IEnumerable<T> SelectAccessibleMembers<T>(this IEnumerable<ITypeSymbol>? types, string memberName, ISymbol within) where T : class, ISymbol 514private static bool? IsMoreSpecificThan(this ITypeSymbol t1, ITypeSymbol t2) 592public static bool IsOrDerivesFromExceptionType([NotNullWhen(returnValue: true)] this ITypeSymbol? type, Compilation compilation) 599foreach (var baseType in type.GetBaseTypesAndThis()) 610foreach (var constraint in ((ITypeParameterSymbol)type).ConstraintTypes) 625public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type) 628public static bool IsEnumType([NotNullWhen(true)] this ITypeSymbol? type, [NotNullWhen(true)] out INamedTypeSymbol? enumType) 640public static bool? IsMutableValueType(this ITypeSymbol type) 642if (type.IsNullable(out var underlyingType)) 721static bool IsWellKnownImmutableValueType(ITypeSymbol type) 754public static bool IsDisposable([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? iDisposableType) 759public static ITypeSymbol WithNullableAnnotationFrom(this ITypeSymbol type, ITypeSymbol symbolForNullableAnnotation) 763public static ITypeSymbol? RemoveNullableIfPresent(this ITypeSymbol? symbol) 765if (symbol.IsNullable(out var underlyingType)) 773public static bool IsSpanOrReadOnlySpan([NotNullWhen(true)] this ITypeSymbol? type) 776public static bool IsSpan([NotNullWhen(true)] this ITypeSymbol? type) 792public static bool IsInlineArray([NotNullWhen(true)] this ITypeSymbol? type) 797public static ITypeSymbol? RemoveUnavailableTypeParameters( 798this ITypeSymbol? type, 806private static ITypeSymbol? RemoveUnavailableTypeParameters( 807this ITypeSymbol? type, 815public static ITypeSymbol? RemoveAnonymousTypes( 816this ITypeSymbol? type, 823public static ITypeSymbol? RemoveUnnamedErrorTypes( 824this ITypeSymbol? type, 831this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 837this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result) 843this ITypeSymbol? type, ArrayBuilder<ITypeParameterSymbol> result, bool onlyMethodTypeParameters) 852public static IList<ITypeParameterSymbol> GetReferencedTypeParameters(this ITypeSymbol? type) 860public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 861this ITypeSymbol? type, 864where TType1 : ITypeSymbol 865where TType2 : ITypeSymbol 871public static ITypeSymbol? SubstituteTypes<TType1, TType2>( 872this ITypeSymbol? type, 875where TType1 : ITypeSymbol 876where TType2 : ITypeSymbol

54foreach (var arg in symbol.TypeArguments)

16private sealed class SubstituteTypesVisitor<TType1, TType2> : SymbolVisitor<ITypeSymbol> 17where TType1 : ITypeSymbol 18where TType2 : ITypeSymbol 32public override ITypeSymbol DefaultVisit(ISymbol node) 35private ITypeSymbol VisitType(ITypeSymbol symbol) 45public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 48public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol) 51public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 58public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 60var mapped = VisitType(symbol); 79var updatedContainingType = symbol.ContainingType?.Accept(this); 96public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 98var mapped = VisitType(symbol); 104var elementType = symbol.ElementType.Accept(this); 113public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 115var mapped = VisitType(symbol); 121var pointedAtType = symbol.PointedAtType.Accept(this);

18private sealed class UnavailableTypeParameterRemover(Compilation compilation, ISet<string> availableTypeParameterNames) : SymbolVisitor<ITypeSymbol> 20public override ITypeSymbol DefaultVisit(ISymbol node) 23public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 26public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 28var elementType = symbol.ElementType.Accept(this); 37public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 43public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 54public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 56var elementType = symbol.PointedAtType.Accept(this); 65public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

17private sealed class UnnamedErrorTypeRemover(Compilation compilation) : SymbolVisitor<ITypeSymbol> 19public override ITypeSymbol DefaultVisit(ISymbol node) 22public override ITypeSymbol VisitDynamicType(IDynamicTypeSymbol symbol) 25public override ITypeSymbol VisitArrayType(IArrayTypeSymbol symbol) 27var elementType = symbol.ElementType.Accept(this); 36public override ITypeSymbol VisitFunctionPointerType(IFunctionPointerTypeSymbol symbol) 42public override ITypeSymbol VisitNamedType(INamedTypeSymbol symbol) 58public override ITypeSymbol VisitPointerType(IPointerTypeSymbol symbol) 60var elementType = symbol.PointedAtType.Accept(this); 69public override ITypeSymbol VisitTypeParameter(ITypeParameterSymbol symbol)

27private IEqualityComparer<ITypeSymbol> SignatureTypeEquivalenceComparer => _symbolEquivalenceComparer.SignatureTypeEquivalenceComparer;

198=> symbol.IsKind(SymbolKind.NamedType, out ITypeSymbol? typeSymbol) && typeSymbol.SpecialType == SpecialType.System_Object;

95private bool NullableAnnotationsEquivalent(ITypeSymbol x, ITypeSymbol y) 492private bool TypeArgumentsAreEquivalent(ImmutableArray<ITypeSymbol> xTypeArguments, ImmutableArray<ITypeSymbol> yTypeArguments, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies)

50return Hash.Combine(GetNullableAnnotationsHashCode((ITypeSymbol)x), Hash.Combine(typeof(IDynamicTypeSymbol), currentHash)); 56private int GetNullableAnnotationsHashCode(ITypeSymbol type)

13internal sealed class SignatureTypeSymbolEquivalenceComparer(SymbolEquivalenceComparer symbolEquivalenceComparer) : IEqualityComparer<ITypeSymbol?> 15public bool Equals(ITypeSymbol? x, ITypeSymbol? y) 18public bool Equals(ITypeSymbol? x, ITypeSymbol? y, Dictionary<INamedTypeSymbol, INamedTypeSymbol>? equivalentTypesWithDifferingAssemblies) 21public int GetHashCode(ITypeSymbol? x)

112public TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, CodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode 139public abstract TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, TCodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode;

83public static bool IsSpecialType([NotNullWhen(true)] ITypeSymbol? type, SpecialType specialType) 133public static bool TypesMatch(ITypeSymbol? type, object value)

30DeclarationModifiers modifiers, ITypeSymbol type, 47ITypeSymbol type, 79ITypeSymbol type, RefKind refKind, ImmutableArray<IPropertySymbol> explicitInterfaceImplementations, string name, 106ITypeSymbol type, string name, 152ITypeSymbol? returnType, 174ITypeSymbol? returnType, 195ITypeSymbol returnType, 220ITypeSymbol toType, 248ITypeSymbol toType, 264public static IParameterSymbol CreateParameterSymbol(ITypeSymbol type, string name) 267public static IParameterSymbol CreateParameterSymbol(RefKind refKind, ITypeSymbol type, string name) 277ImmutableArray<AttributeData> attributes, RefKind refKind, bool isParams, ITypeSymbol type, string name, bool isOptional = false, bool hasDefaultValue = false, object? defaultValue = null) 290ITypeSymbol? type = null, 331ImmutableArray<ITypeSymbol> constraintTypes, 347public static IPointerTypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 353public static IArrayTypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank = 1, NullableAnnotation nullableAnnotation = NullableAnnotation.None) 463ITypeSymbol returnType, 520ITypeSymbol? returnType = null,

118TDeclarationNode UpdateDeclarationType<TDeclarationNode>(TDeclarationNode declaration, ITypeSymbol newType, CodeGenerationContextInfo info, CancellationToken cancellationToken) where TDeclarationNode : SyntaxNode;

10/// Annotation placed on <see cref="ITypeSymbol"/>s that the <see cref="SyntaxGenerator"/> converts to a node. This

41public abstract ITypeSymbol ReturnType { get; } 42public abstract ImmutableArray<ITypeSymbol> TypeArguments { get; } 50public abstract ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter); 51public abstract IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType); 61public virtual ITypeSymbol ReceiverType => this.ContainingType; 112public IMethodSymbol Construct(params ITypeSymbol[] typeArguments) 115public IMethodSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<CodeAnalysis.NullableAnnotation> typeArgumentNullableAnnotations)

53public INamedTypeSymbol Construct(params ITypeSymbol[] typeArguments) 64public INamedTypeSymbol Construct(ImmutableArray<ITypeSymbol> typeArguments, ImmutableArray<NullableAnnotation> typeArgumentNullableAnnotations) 84public abstract ImmutableArray<ITypeSymbol> TypeArguments { get; }

10internal sealed class CodeGenerationArrayTypeSymbol(ITypeSymbol elementType, int rank, NullableAnnotation nullableAnnotation) : CodeGenerationTypeSymbol(null, null, default, Accessibility.NotApplicable, default, string.Empty, SpecialType.None, nullableAnnotation), IArrayTypeSymbol 12public ITypeSymbol ElementType { get; } = elementType;

14private readonly ImmutableArray<ITypeSymbol> _typeArguments; 18ImmutableArray<ITypeSymbol> typeArguments) 47public override ITypeSymbol ReturnType 56public override ImmutableArray<ITypeSymbol> TypeArguments => _typeArguments; 84public override ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter) 87public override IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType)

16private readonly ImmutableArray<ITypeSymbol> _typeArguments; 20ImmutableArray<ITypeSymbol> typeArguments, 31public override ImmutableArray<ITypeSymbol> TypeArguments => _typeArguments;

15ITypeSymbol toType,

16ITypeSymbol type, 23public ITypeSymbol Type { get; } = type;

17ITypeSymbol type, 22public ITypeSymbol Type { get; } = type;

16public override ITypeSymbol ReturnType { get; } 27ITypeSymbol returnType, 95public override ImmutableArray<ITypeSymbol> TypeArguments 96=> this.TypeParameters.As<ITypeSymbol>(); 109public override ITypeSymbol GetTypeInferredDuringReduction(ITypeParameterSymbol reducedFromTypeParameter) 112public override IMethodSymbol ReduceExtensionMethod(ITypeSymbol receiverType)

122public override ImmutableArray<ITypeSymbol> TypeArguments 126return this.TypeParameters.As<ITypeSymbol>();

15ITypeSymbol returnType,

17ITypeSymbol type, 27public ITypeSymbol Type { get; } = type;

9internal sealed class CodeGenerationPointerTypeSymbol(ITypeSymbol pointedAtType) : CodeGenerationTypeSymbol(null, null, default, Accessibility.NotApplicable, default, string.Empty, SpecialType.None, NullableAnnotation.None), IPointerTypeSymbol 11public ITypeSymbol PointedAtType { get; } = pointedAtType;

17ITypeSymbol type, 26public ITypeSymbol Type { get; } = type;

17ImmutableArray<ITypeSymbol> constraintTypes, 27public ImmutableArray<ITypeSymbol> ConstraintTypes { get; internal set; } = constraintTypes;

51public static ImmutableArray<ITypeSymbol> TupleElementTypes => default; 55public new ITypeSymbol OriginalDefinition => this; 75bool ITypeSymbol.IsRefLikeType => false; 77bool ITypeSymbol.IsUnmanagedType => throw new System.NotImplementedException(); 79bool ITypeSymbol.IsReadOnly => Modifiers.IsReadOnly; 85public ITypeSymbol WithNullableAnnotation(NullableAnnotation nullableAnnotation)

15public ITypeSymbol CreateArrayTypeSymbol(ITypeSymbol elementType, int rank) 18public ITypeSymbol CreatePointerTypeSymbol(ITypeSymbol pointedAtType) 21public ITypeSymbol Construct(INamedTypeSymbol namedType, ITypeSymbol[] typeArguments)

97public ImmutableArray<ITypeSymbol> InferredTypes { get; } = document.GetRequiredLanguageService<ITypeInferenceService>().InferTypes(semanticModel, position, cancellationToken);

54var mapping = new Dictionary<ITypeSymbol, ITypeSymbol>(SymbolEqualityComparer.Default); 108var mapping = new Dictionary<ITypeSymbol, ITypeSymbol>(SymbolEqualityComparer.Default);

15public static ImmutableArray<ITypeSymbol> InferTypes(this ITypeInferenceService service, SemanticModel semanticModel, SyntaxNode expression, CancellationToken cancellationToken) 18public static ImmutableArray<ITypeSymbol> InferTypes(this ITypeInferenceService service, SemanticModel semanticModel, int position, CancellationToken cancellationToken) 47private static INamedTypeSymbol? GetFirstDelegateType(SemanticModel semanticModel, ImmutableArray<ITypeSymbol> types) 53public static ITypeSymbol? InferType( 65public static ITypeSymbol? InferType( 83public static ITypeSymbol? InferType( 95public static ITypeSymbol? InferType(

22public bool IsTaskLike([NotNullWhen(true)] ITypeSymbol? returnType)

70ITypeSymbol type) 80private static ITypeSymbol GetType(Compilation compilation, ISymbol symbol) 122var throughMemberType = throughMember.GetMemberType(); 351var parameterType = parameter.Type;

231var memberType = member.GetSymbolType(); 360public static string? GetLocalName(this ITypeSymbol containingType, string? fallback = "v") 382private static bool ImplementsIEquatable(ITypeSymbol memberType, INamedTypeSymbol iequatableType) 395private static bool ShouldUseEqualityOperator(ITypeSymbol typeSymbol) 399if (typeSymbol.IsNullable(out var underlyingType))

455var type = variableExpression.Type;

105protected static IMethodSymbol? FindDisposeMethod(Compilation compilation, ITypeSymbol? type, bool isAsync) 130var currentType = type; 146var currentType = type;

47CommonConversion ClassifyConversion(SemanticModel semanticModel, SyntaxNode expression, ITypeSymbol destination);

86/// Produces an appropriate TypeSyntax for the given <see cref="ITypeSymbol"/>. The <paramref name="typeContext"/> 100public abstract SyntaxNode Type(ITypeSymbol typeSymbol, bool typeContext); 130public abstract SyntaxNode DefaultExpression(ITypeSymbol type); 135public SyntaxNode CastExpression(ITypeSymbol type, SyntaxNode expression) 138public SyntaxNode TypeExpression(ITypeSymbol typeSymbol) 141public abstract SyntaxNode TypeExpression(ITypeSymbol typeSymbol, RefKind refKind); 155public SyntaxNode ConvertExpression(ITypeSymbol type, SyntaxNode expression)

36protected abstract bool IsUnusableType(ITypeSymbol arg); 81protected static IEnumerable<TypeInferenceInfo> CreateResult(ITypeSymbol type) 84protected static IEnumerable<ITypeSymbol> ExpandParamsParameter(IParameterSymbol parameterSymbol) 86var result = new List<ITypeSymbol> 108var elementType = parameters.ElementAtOrDefault(0);

15private static ImmutableArray<ITypeSymbol> InferTypeBasedOnNameIfEmpty( 16SemanticModel semanticModel, ImmutableArray<ITypeSymbol> result, string? nameOpt) 41private static ImmutableArray<ITypeSymbol> InferTypeBasedOnName( 79public ImmutableArray<ITypeSymbol> InferTypes( 90public ImmutableArray<ITypeSymbol> InferTypes(

27ImmutableArray<ITypeSymbol> InferTypes(SemanticModel semanticModel, SyntaxNode expression, string? nameOpt, CancellationToken cancellationToken); 28ImmutableArray<ITypeSymbol> InferTypes(SemanticModel semanticModel, int position, string? nameOpt, CancellationToken cancellationToken); 34internal readonly record struct TypeInferenceInfo(ITypeSymbol InferredType, bool IsParams) 36public TypeInferenceInfo(ITypeSymbol type) : this(type, IsParams: false)

28GetCSharpExpectedDiagnostic(19, 29, violatingTypeName: typeof(ITypeSymbol).FullName), 84GetBasicExpectedDiagnostic(19, 35, violatingTypeName: typeof(ITypeSymbol).FullName),

49ITypeSymbol coupledType) 349private static void AddCoupledNamedTypesCore(ImmutableHashSet<INamedTypeSymbol>.Builder builder, ITypeSymbol typeOpt, 363foreach (var type in usedType.TypeArguments)

89public static bool IsImplementationOfInterfaceMethod(this IMethodSymbol method, ITypeSymbol? typeArgument, [NotNullWhen(returnValue: true)] INamedTypeSymbol? interfaceType, string interfaceMethodName)

29public static ITypeSymbol? GetReceiverType(this IInvocationOperation invocation, Compilation compilation, bool beforeConversion, CancellationToken cancellationToken) 55private static ITypeSymbol? GetReceiverType(SyntaxNode receiverSyntax, Compilation compilation, CancellationToken cancellationToken) 391public static ITypeSymbol? GetPatternType(this IPatternOperation pattern) 467public static ITypeSymbol? GetThrownExceptionType(this IThrowOperation operation)

110var type1 = parameter1.Type.OriginalDefinition; 111var type2 = parameter2.Type.OriginalDefinition; 216public static ITypeSymbol? GetMemberOrLocalOrParameterType(this ISymbol symbol) 292public static bool HasDerivedTypeAttribute(this ITypeSymbol symbol, [NotNullWhen(returnValue: true)] INamedTypeSymbol? attribute) 377ITypeSymbol type => type.IsReadOnly,

18public static bool IsPrimitiveType(this ITypeSymbol type) 39public static bool Inherits([NotNullWhen(returnValue: true)] this ITypeSymbol? type, [NotNullWhen(returnValue: true)] ITypeSymbol? possibleBase) 64public static bool DerivesFrom([NotNullWhen(returnValue: true)] this ITypeSymbol? symbol, [NotNullWhen(returnValue: true)] ITypeSymbol? candidateBaseType, bool baseTypesOnly = false, bool checkTypeParameterConstraints = true) 73var allInterfaces = symbol.AllInterfaces.OfType<ITypeSymbol>(); 89foreach (var constraintType in typeParameterSymbol.ConstraintTypes) 115public static bool IsDisposable(this ITypeSymbol type, 138static bool IsInterfaceOrImplementsInterface(ITypeSymbol type, INamedTypeSymbol? interfaceType) 248public static bool HasValueCopySemantics(this ITypeSymbol typeSymbol) 251public static bool CanHoldNullValue([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 256public static bool IsNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 259public static bool IsReferenceTypeOrNullableValueType([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 262public static bool IsNullableOfBoolean([NotNullWhen(returnValue: true)] this ITypeSymbol? typeSymbol) 265public static ITypeSymbol? GetUnderlyingValueTupleTypeOrThis(this ITypeSymbol? typeSymbol)

14/// <see cref="IComparer{T}"/> for <see cref="ITypeSymbol"/>s sorted by display strings. 17internal sealed class SymbolByDisplayStringComparer : IComparer<ITypeSymbol> 50public int Compare([AllowNull] ITypeSymbol x, [AllowNull] ITypeSymbol y)

203internal bool IsTaskOfType([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol, bool> typeArgumentPredicate)

33internal static ITypeSymbol? GetEnclosingRegionExceptionType(this BasicBlock basicBlock)

96protected override CopyAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) => CopyAbstractValue.NotApplicable; 626private static bool FlowConversionOperandValue(ConversionInference inference, ITypeSymbol? targetType)

95Func<ITypeSymbol, bool> isDisposableTypeNotRequiringToBeDisposed,

60protected override DisposeAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) => DisposeAbstractValue.NotDisposable; 89var instanceType = creation.Type; 152protected override void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, DisposeAbstractValue value)

44Func<ITypeSymbol, bool> isDisposableTypeNotRequiringToBeDisposed) 80Func<ITypeSymbol, bool> isDisposableTypeNotRequiringToBeDisposed) 112internal Func<ITypeSymbol, bool> IsDisposableTypeNotRequiringToBeDisposed { get; }

112public static Func<ITypeSymbol?, bool> GetIsDisposableDelegate(Compilation compilation) 169public bool IsDisposableTypeNotRequiringToBeDisposed(ITypeSymbol typeSymbol) => 219public bool IsDisposable([NotNullWhen(returnValue: true)] ITypeSymbol? type)

58protected sealed override GlobalFlowStateAnalysisValueSet GetAbstractDefaultValue(ITypeSymbol? type)

54protected override ParameterValidationAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) => ValueDomain.Bottom; 111protected override void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, ParameterValidationAbstractValue value)

22private readonly Func<ITypeSymbol?, bool> _isDisposable; 27Func<ITypeSymbol?, bool> isDisposable)

94internal static bool ShouldBeTracked([NotNullWhen(returnValue: true)] ITypeSymbol? typeSymbol, Func<ITypeSymbol?, bool> isDisposable) 98internal static bool ShouldBeTracked(AnalysisEntity analysisEntity, PointsToAnalysisKind pointsToAnalysisKind, Func<ITypeSymbol?, bool> isDisposable)

18public PointsToAnalysisDomain(DefaultPointsToValueGenerator defaultPointsToValueGenerator, Func<ITypeSymbol?, bool> isDisposable) 28Func<ITypeSymbol?, bool> isDisposable)

171protected override PointsToAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) => !PointsToAnalysis.ShouldBeTracked(type, IsDisposable) ? PointsToAbstractValue.NoLocation : PointsToAbstractValue.NullLocation; 439ITypeSymbol targetType, 445Func<ITypeSymbol?, bool> isDisposable, 505ITypeSymbol targetType, 740protected override void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, PointsToAbstractValue value) 1052private NullAbstractValue GetNullStateBasedOnInstanceOrReferenceValue(IOperation? referenceOrInstance, ITypeSymbol? operationType, NullAbstractValue defaultValue) 1253public override PointsToAbstractValue ComputeValueForCompoundAssignment(ICompoundAssignmentOperation operation, PointsToAbstractValue targetValue, PointsToAbstractValue assignedValue, ITypeSymbol? targetType, ITypeSymbol? assignedValueType)

20private readonly Func<ITypeSymbol?, bool> _isDisposable; 22internal PointsToAnalysisData(Func<ITypeSymbol?, bool> isDisposable) 27internal PointsToAnalysisData(IDictionary<AnalysisEntity, PointsToAbstractValue> fromData, Func<ITypeSymbol?, bool> isDisposable) 41Func<ITypeSymbol?, bool> isDisposable) 122internal static void AssertValidPointsToAnalysisData(IDictionary<AnalysisEntity, PointsToAbstractValue> map, Func<ITypeSymbol?, bool> isDisposable) 139Func<ITypeSymbol?, bool> isDisposable)

92protected override PropertySetAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) => ValueDomain.Bottom; 135protected override void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, PropertySetAbstractValue value) 533ITypeSymbol? argumentTypeSymbol = value is IConversionOperation conversionOperation ? conversionOperation.Operand.Type : value.Type;

67protected override TaintedDataAbstractValue GetAbstractDefaultValue(ITypeSymbol? type)

17/// Mapping of <see cref="ITypeSymbol"/> to <see cref="ITaintedDataInfo"/> (tainted data source/sanitizer/sink info). 46ImmutableDictionary<ITypeSymbol, TInfo>.Builder concreteInfosBuilder = ImmutableDictionary.CreateBuilder<ITypeSymbol, TInfo>(); 47ImmutableDictionary<ITypeSymbol, TInfo>.Builder interfaceInfosBuilder = ImmutableDictionary.CreateBuilder<ITypeSymbol, TInfo>(); 86private ImmutableDictionary<ITypeSymbol, TInfo> ConcreteInfos { get; } 91private ImmutableDictionary<ITypeSymbol, TInfo> InterfaceInfos { get; }

43internal static ValueContentAbstractValue Create(object literal, ITypeSymbol type) 120internal static bool IsSupportedType(ITypeSymbol type, [NotNullWhen(returnValue: true)] out ITypeSymbol? valueTypeSymbol) 256ITypeSymbol? leftType, 257ITypeSymbol? rightType, 258ITypeSymbol? resultType) 289private static bool TryMerge(object? value1, object? value2, BinaryOperatorKind binaryOperatorKind, ITypeSymbol? type1, ITypeSymbol? type2, ITypeSymbol? resultType, [NotNullWhen(returnValue: true)] out object? result)

67protected override ValueContentAbstractValue GetAbstractDefaultValue(ITypeSymbol? type) 194if (ValueContentAbstractValue.IsSupportedType(operation.Type, out var valueTypeSymbol)) 235ITypeSymbol? targetType, 236ITypeSymbol? assignedValueType)

22/// 1. An allocation or an object creation operation (<see cref="CreateAllocationLocation(IOperation, ITypeSymbol, PointsToAnalysisContext)"/>). 26/// See <see cref="CreateFlowCaptureLocation(InterproceduralCaptureId, ITypeSymbol, ImmutableStack{IOperation})"/> 35private AbstractLocation(IOperation? creation, ImmutableStack<IOperation>? creationCallStack, AnalysisEntity? analysisEntity, ISymbol? symbol, InterproceduralCaptureId? captureId, ITypeSymbol? locationType, bool isSpecialSingleton) 48private static AbstractLocation Create(IOperation? creation, ImmutableStack<IOperation>? creationCallStack, AnalysisEntity? analysisEntity, ISymbol? symbol, InterproceduralCaptureId? captureId, ITypeSymbol? locationType) 56public static AbstractLocation CreateAllocationLocation(IOperation creation, ITypeSymbol locationType, PointsToAnalysisContext analysisContext) 58internal static AbstractLocation CreateAllocationLocation(IOperation creation, ITypeSymbol locationType, ImmutableStack<IOperation>? callStack) 66public static AbstractLocation CreateFlowCaptureLocation(InterproceduralCaptureId captureId, ITypeSymbol locationType, ImmutableStack<IOperation>? creationCallStack) 89public ITypeSymbol? LocationType { get; }

44ITypeSymbol type, 69private AnalysisEntity(ISymbol? symbol, ImmutableArray<AbstractIndex> indices, PointsToAbstractValue location, ITypeSymbol type, AnalysisEntity? parent, AnalysisEntity? entityForInstanceLocation) 82private AnalysisEntity(InterproceduralCaptureId captureId, ITypeSymbol capturedType, PointsToAbstractValue location) 95ITypeSymbol type, PointsToAbstractValue instanceLocation, AnalysisEntity? parent, AnalysisEntity? entityForInstanceLocation) 111ITypeSymbol type, 202public ITypeSymbol Type { get; }

210protected override void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, TAbstractAnalysisValue value) 315protected virtual TAbstractAnalysisValue GetDefaultValueForParameterOnExit(ITypeSymbol parameterType) => ValueDomain.UnknownOrMayBeValue;

136ITypeSymbol? type = operation.Type; 317var type = symbol.GetMemberOrLocalOrParameterType(); 347var underlyingValueTupleType = tupleType.GetUnderlyingValueTupleTypeOrThis()!; 397public bool TryCreateForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, [NotNullWhen(returnValue: true)] out AnalysisEntity? analysisEntity) 413private AnalysisEntity GetOrCreateForFlowCapture(CaptureId captureId, ITypeSymbol? type, IOperation flowCaptureOrReference, bool isLValueFlowCapture) 440ITypeSymbol type, IOperation? instance, [NotNullWhen(returnValue: true)] out AnalysisEntity? analysisEntity) 554private AnalysisEntity Create(ISymbol? symbol, ImmutableArray<AbstractIndex> indices, ITypeSymbol type, PointsToAbstractValue? instanceLocation, AnalysisEntity? parent, AnalysisEntity? entityForInstanceLocation)

30ITypeSymbol? targetType, 31ITypeSymbol? sourceType,

131protected abstract TAbstractAnalysisValue GetAbstractDefaultValue(ITypeSymbol? type); 727var thrownExceptionType = branch.BranchValue?.Type ?? CurrentBasicBlock.GetEnclosingRegionExceptionType(); 1242var targetType = operation.Pattern.GetPatternType(); 1248ITypeSymbol? targetType, 1349static bool IsInterfaceOrTypeParameter(ITypeSymbol? type) => type?.TypeKind is TypeKind.Interface or TypeKind.TypeParameter; 1856var leftType = operation.LeftOperand.Type; 1858var rightType = operation.RightOperand.Type; 1946protected abstract void SetAbstractValueForArrayElementInitializer(IArrayCreationOperation arrayCreation, ImmutableArray<AbstractIndex> indices, ITypeSymbol elementType, IOperation initializer, TAbstractAnalysisValue value); 2855ITypeSymbol? targetType, 2856ITypeSymbol? assignedValueType) 2901var elementType = ((IArrayTypeSymbol)arrayCreation.Type!).ElementType; 3759private void MergeAnalysisDataFromUnhandledThrowOperations(ITypeSymbol? caughtExceptionType) 4222private protected bool IsDisposable([NotNullWhen(returnValue: true)] ITypeSymbol? type)

137public static string GenerateNameFromType(this SemanticModel semanticModel, ITypeSymbol type, ISyntaxFacts syntaxFacts, bool capitalize) 168private static bool ShouldPluralize(this SemanticModel semanticModel, ITypeSymbol type) 183ImmutableArray<ITypeSymbol> typeArguments, 218public static ITypeSymbol GetType(

362SymbolCategory.Type => symbol is ITypeSymbol type && type.TypeKind == (TypeKind)_kind,

12ITypeSymbol? elementType) 18public readonly ITypeSymbol? ElementType = elementType;

118private static bool IsFloatingPoint([NotNullWhen(returnValue: true)] ITypeSymbol? type)

40using var propertyTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

32foreach (var typeSymbol in elementTypeResolution.OfType<ITypeSymbol>())

28using var parameterTypes = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 45var returnTypeSymbol = (ITypeSymbol?)returnType.GetAnySymbol();

44visitor.WriteSymbolKeyArray(ImmutableArray<ITypeSymbol>.Empty); 72using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

56using var parameterTypes = reader.ReadSymbolKeyArray<IFunctionPointerTypeSymbol, ITypeSymbol>( 76if (returnType.GetAnySymbol() is not ITypeSymbol returnTypeSymbol)

44foreach (var receiverType in receiverTypeResolution.OfType<ITypeSymbol>()) 70using var typeArguments = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 223_ = reader.ReadSymbolKeyArray<IMethodSymbol, ITypeSymbol>( 246var returnType = (ITypeSymbol?)reader.ReadSymbolKey(contextualSymbol: method.ReturnType, out _).GetAnySymbol();

48using var typeArguments = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>( 95ITypeSymbol[] typeArgumentsArray, 146ITypeSymbol[] typeArguments, 200private static INamedTypeSymbol Construct(INamedTypeSymbol type, bool isUnboundGenericType, ITypeSymbol[] typeArguments)

34foreach (var typeSymbol in pointedAtTypeResolution.OfType<ITypeSymbol>())

71_ = reader.ReadSymbolKeyArray<IPropertySymbol, ITypeSymbol>(

383Func<TOwningSymbol, int, ITypeSymbol?> getContextualType, 387using var originalParameterTypes = this.ReadSymbolKeyArray<TOwningSymbol, ITypeSymbol>(owningSymbol, getContextualType, out _);

96using var elementTypes = reader.ReadSymbolKeyArray<INamedTypeSymbol, ITypeSymbol>(

102protected abstract TConversion ClassifyConversion(SemanticModel model, TExpressionSyntax expression, ITypeSymbol targetType); 103protected abstract TConversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType); 105protected abstract bool ConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType); 106protected abstract bool IsReferenceConversion(Compilation model, ITypeSymbol sourceType, ITypeSymbol targetType); 112SemanticModel model, TForEachStatementSyntax forEach, out IMethodSymbol getEnumeratorMethod, out ITypeSymbol elementType, out ImmutableArray<ILocalSymbol> localVariables); 305private bool ImplicitConversionsAreCompatible(TExpressionSyntax originalExpression, ITypeSymbol originalTargetType, TExpressionSyntax newExpression, ITypeSymbol newTargetType) 740var previousOriginalType = this.OriginalSemanticModel.GetTypeInfo(previousOriginalNode).Type; 741var previousReplacedType = this.SpeculativeSemanticModel.GetTypeInfo(previousReplacedNode).Type; 780GetForEachSymbols(this.OriginalSemanticModel, forEachStatement, out var originalGetEnumerator, out var originalElementType, out var originalLocalVariables); 781GetForEachSymbols(this.SpeculativeSemanticModel, newForEachStatement, out var newGetEnumerator, out var newElementType, out var newLocalVariables); 826var expressionType = this.SpeculativeSemanticModel.GetTypeInfo(newForEachStatementExpression, CancellationToken).ConvertedType; 849var originalThrowExpressionType = this.OriginalSemanticModel.GetTypeInfo(originalThrowExpression).Type; 851var newThrowExpressionType = this.SpeculativeSemanticModel.GetTypeInfo(newThrowExpression).Type; 961var originalTargetType = this.OriginalSemanticModel.GetTypeInfo(originalLeft).Type; 964var newTargetType = this.SpeculativeSemanticModel.GetTypeInfo(newLeft).Type; 997var newReceiverType = newReceiver != null 1036var receiverType = semanticModel.GetTypeInfo(receiver).Type; 1196ITypeSymbol originalTargetType, 1198ITypeSymbol newTargetType, 1213var originalConvertedTypeSymbol = this.OriginalSemanticModel.GetTypeInfo(originalExpression).ConvertedType; 1219var newConvertedTypeSymbol = this.SpeculativeSemanticModel.GetTypeInfo(newExpression).ConvertedType;

39public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this INamedTypeSymbol? symbol) 669public static INamedTypeSymbol TryConstruct(this INamedTypeSymbol type, ITypeSymbol[] typeArguments)

226=> symbol is ITypeSymbol { TypeKind: TypeKind.Error }; 229=> symbol is ITypeSymbol { TypeKind: TypeKind.Module }; 232=> symbol is ITypeSymbol { TypeKind: TypeKind.Interface }; 238=> symbol is ITypeSymbol { IsTupleType: true }; 308=> symbol is ITypeSymbol { TypeKind: TypeKind.Delegate }; 339public static ITypeSymbol? GetMemberType(this ISymbol? symbol) 452public static ImmutableArray<ITypeSymbol> GetTypeArguments(this ISymbol? symbol) 460public static ImmutableArray<ITypeSymbol> GetAllTypeArguments(this ISymbol symbol) 462var results = ArrayBuilder<ITypeSymbol>.GetInstance(); 476=> (symbol as ITypeSymbol)?.IsAttribute() == true; 490public static ITypeSymbol ConvertToType( 495if (symbol is ITypeSymbol type) 564public static Accessibility ComputeResultantAccessibility(this ISymbol? symbol, ITypeSymbol finalDestination) 623public static ITypeSymbol? GetSymbolType(this ISymbol? symbol) 630IAliasSymbol aliasSymbol => aliasSymbol.Target as ITypeSymbol, 631_ => symbol as ITypeSymbol, 642ITypeSymbol? typeSymbol = null; 646typeSymbol = symbol as ITypeSymbol; 675var returnType = getAwaiter.ReturnType; 709var returnType = getEnumerator.ReturnType; 749var returnType = getAsyncEnumerator.ReturnType;