255 references to NullableAnnotation
Microsoft.CodeAnalysis.CSharp (255)
Binder\Binder.ValueChecks.cs (1)
3106=> TypeWithAnnotations.Create(_type, NullableAnnotation.NotAnnotated);
Binder\Binder_Constraints.cs (1)
555if (typeWithAnnotations.NullableAnnotation == NullableAnnotation.Annotated && performOnlyCycleSafeValidation &&
Binder\Binder_Expressions.cs (1)
1703expression = new BoundDiscardExpression(node, NullableAnnotation.Annotated, isInferred: true, type: null);
Binder\Binder_Patterns.cs (2)
332declType: TypeWithAnnotations.Create(narrowedType, NullableAnnotation.NotAnnotated), 942return TypeWithAnnotations.Create(inputType.StrippedType(), NullableAnnotation.NotAnnotated);
Binder\Semantics\BestTypeInferrer.cs (3)
16public static NullableAnnotation GetNullableAnnotation(ArrayBuilder<TypeWithAnnotations> types) 22var result = NullableAnnotation.NotAnnotated;
Binder\Semantics\OverloadResolution\MethodTypeInference.cs (4)
159private readonly NullableAnnotation[] _nullableAnnotationLowerBounds; 351_nullableAnnotationLowerBounds = new NullableAnnotation[methodTypeParameters.Length]; 3458var oldAnnotation = oldBound.NullableAnnotation; 3459var newAnnotation = oldAnnotation.MergeNullableAnnotation(candidate.NullableAnnotation, variance);
BoundTree\BoundDiscardExpression.cs (1)
25return this.Update(NullableAnnotation.Oblivious, this.IsInferred, binder.CreateErrorType("var"));
BoundTree\BoundExpressionWithNullability.cs (1)
11public BoundExpressionWithNullability(SyntaxNode syntax, BoundExpression expression, NullableAnnotation nullableAnnotation, TypeSymbol? type)
Compilation\CSharpCompilation.cs (7)
2392internal ArrayTypeSymbol CreateArrayTypeSymbol(TypeSymbol elementType, int rank = 1, NullableAnnotation elementNullableAnnotation = NullableAnnotation.Oblivious) 2410internal PointerTypeSymbol CreatePointerTypeSymbol(TypeSymbol elementType, NullableAnnotation elementNullableAnnotation = NullableAnnotation.Oblivious) 4195var annotation = (elementNullableAnnotations.IsDefault ? typeSymbol.NullableAnnotation : elementNullableAnnotations[i]).ToInternalAnnotation(); 4263var nullableAnnotation = memberNullableAnnotations.IsDefault ? NullableAnnotation.Oblivious : memberNullableAnnotations[i].ToInternalAnnotation();
FlowAnalysis\NullableWalker.cs (37)
126public VisitResult(TypeSymbol? type, NullableAnnotation annotation, NullableFlowState state) 187private readonly (SynthesizedBackingFieldSymbol field, NullableAnnotation assumedAnnotation)? _getterNullResilienceData; 457(SynthesizedBackingFieldSymbol field, NullableAnnotation assumedAnnotation)? getterNullResilienceData, 1735(SourcePropertyAccessorSymbol getter, SynthesizedBackingFieldSymbol field, NullableAnnotation assumedNullableAnnotation)? getterNullResilienceData = null) 1818(SynthesizedBackingFieldSymbol field, NullableAnnotation assumedAnnotation)? getterNullResilienceData, 2370case NullableAnnotation.Oblivious: 2371case NullableAnnotation.Annotated: 2863NullableAnnotation nullableAnnotation; 4379var result = new VisitResult(objectInitializer.Type, NullableAnnotation.NotAnnotated, NullableFlowState.NotNull); 4568SetAnalyzedNullability(node.ImplicitReceiverOpt, new VisitResult(node.ImplicitReceiverOpt.Type, NullableAnnotation.NotAnnotated, NullableFlowState.NotNull)); 4684return GetOrCreatePlaceholderSlot(node, TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated)); 5780targetType = TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated); 6112var lValueAnnotation = consequenceLValue.NullableAnnotation.EnsureCompatible(alternativeLValue.NullableAnnotation); 8257private static NullableAnnotation GetNullableAnnotation(BoundExpression expr) 8264return expr.ConstantValueOpt == ConstantValue.NotAvailable || !expr.ConstantValueOpt.IsNull || expr.IsSuppressed ? NullableAnnotation.NotAnnotated : NullableAnnotation.Annotated; 8272return NullableAnnotation.NotAnnotated; 8275return NullableAnnotation.Oblivious; 8357return new BoundExpressionWithNullability(argument.Syntax, argument, NullableAnnotation.Oblivious, type: null); 9561dependsOnTypeParameter(typeParameter1, (TypeParameterSymbol)targetType.Type, NullableAnnotation.NotAnnotated, out var annotation)) 9563return (annotation == NullableAnnotation.Annotated) ? NullableFlowState.MaybeDefault : NullableFlowState.MaybeNull; 9594bool dependsOn = dependsOnTypeParameter(typeParameter1, typeParameter2, NullableAnnotation.NotAnnotated, out var annotation); 9598return (annotation == NullableAnnotation.Annotated) ? NullableFlowState.MaybeDefault : NullableFlowState.MaybeNull; 9631static bool dependsOnTypeParameter(TypeParameterSymbol typeParameter1, TypeParameterSymbol typeParameter2, NullableAnnotation typeParameter1Annotation, out NullableAnnotation annotation) 9639var combinedAnnotation = NullableAnnotation.Annotated; 9643dependsOnTypeParameter(constraintTypeParameter, typeParameter2, constraintType.NullableAnnotation, out var constraintAnnotation)) 10130var argTypeWithAnnotations = TypeWithAnnotations.Create(argType, NullableAnnotation.NotAnnotated); 10329var lvalueResult = TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated); 10609placeholderArgs.Add(new BoundExpressionWithNullability(variables[i].Expression.Syntax, variables[i].Expression, NullableAnnotation.Oblivious, conversion.DeconstructionInfo.OutputPlaceholders[i].Type)); 11479TypeWithAnnotations.Create(enumeratorInfoOpt.ElementType, NullableAnnotation.NotAnnotated).ToTypeWithState(); 12166var result = TypeWithAnnotations.Create(node.Type, NullableAnnotation.Oblivious); 12272var result = TypeWithAnnotations.Create(node.Type, NullableAnnotation.Oblivious); 12443var result = TypeWithAnnotations.Create(node.Type, node.IsInferred ? NullableAnnotation.Annotated : node.NullableAnnotation);
FlowAnalysis\NullableWalker_Patterns.cs (2)
476outputSlot = makeDagTempSlot(TypeWithAnnotations.Create(e.Type, NullableAnnotation.NotAnnotated), output); 839var type = TypeWithAnnotations.Create(t, NullableAnnotation.Annotated);
Generated\BoundNodes.xml.Generated.cs (10)
1526public BoundRefValueOperator(SyntaxNode syntax, NullableAnnotation nullableAnnotation, BoundExpression operand, TypeSymbol type, bool hasErrors = false) 1538public NullableAnnotation NullableAnnotation { get; } 1544public BoundRefValueOperator Update(NullableAnnotation nullableAnnotation, BoundExpression operand, TypeSymbol type) 8547public BoundDiscardExpression(SyntaxNode syntax, NullableAnnotation nullableAnnotation, bool isInferred, TypeSymbol? type, bool hasErrors) 8554public BoundDiscardExpression(SyntaxNode syntax, NullableAnnotation nullableAnnotation, bool isInferred, TypeSymbol? type) 8562public NullableAnnotation NullableAnnotation { get; } 8568public BoundDiscardExpression Update(NullableAnnotation nullableAnnotation, bool isInferred, TypeSymbol? type) 8780public BoundExpressionWithNullability(SyntaxNode syntax, BoundExpression expression, NullableAnnotation nullableAnnotation, TypeSymbol? type, bool hasErrors = false) 8792public NullableAnnotation NullableAnnotation { get; } 8797public BoundExpressionWithNullability Update(BoundExpression expression, NullableAnnotation nullableAnnotation, TypeSymbol? type)
Symbols\AliasSymbol.cs (1)
409annotatedNamespaceOrType.TypeWithAnnotations.NullableAnnotation == NullableAnnotation.Annotated &&
Symbols\AnonymousTypes\SynthesizedSymbols\AnonymousType.ToStringMethodSymbol.cs (1)
49get { return TypeWithAnnotations.Create(this.Manager.System_String, NullableAnnotation.NotAnnotated); }
Symbols\ConstraintsHelper.cs (8)
1241case NullableAnnotation.Annotated: 1243case NullableAnnotation.Oblivious: 1280case NullableAnnotation.Oblivious: 1281case NullableAnnotation.Annotated: 1639case NullableAnnotation.Annotated: 1641case NullableAnnotation.NotAnnotated: 1643case NullableAnnotation.Oblivious: 1661case NullableAnnotation.Annotated:
Symbols\Metadata\PE\SymbolFactory.cs (1)
170return TypeWithAnnotations.Create(type, NullableAnnotation.Oblivious, CSharpCustomModifier.Convert(customModifiers));
Symbols\NullableAnnotation.cs (6)
13/// The order of values here is used in the computation of <see cref="NullableAnnotationExtensions.Meet(NullableAnnotation, NullableAnnotation)"/>, 14/// <see cref="NullableAnnotationExtensions.Join(NullableAnnotation, NullableAnnotation)"/>, and 15/// <see cref="NullableAnnotationExtensions.EnsureCompatible(NullableAnnotation, NullableAnnotation)"/>. If the order here is changed
Symbols\NullableAnnotationExtensions.cs (44)
16public static bool IsAnnotated(this NullableAnnotation annotation) => annotation == NullableAnnotation.Annotated; 18public static bool IsNotAnnotated(this NullableAnnotation annotation) => annotation == NullableAnnotation.NotAnnotated; 20public static bool IsOblivious(this NullableAnnotation annotation) => annotation == NullableAnnotation.Oblivious; 26public static NullableAnnotation Join(this NullableAnnotation a, NullableAnnotation b) 28Debug.Assert(a != NullableAnnotation.Ignored); 29Debug.Assert(b != NullableAnnotation.Ignored); 37public static NullableAnnotation Meet(this NullableAnnotation a, NullableAnnotation b) 39Debug.Assert(a != NullableAnnotation.Ignored); 40Debug.Assert(b != NullableAnnotation.Ignored); 48public static NullableAnnotation EnsureCompatible(this NullableAnnotation a, NullableAnnotation b) 50Debug.Assert(a != NullableAnnotation.Ignored); 51Debug.Assert(b != NullableAnnotation.Ignored); 54(NullableAnnotation.Oblivious, _) => b, 55(_, NullableAnnotation.Oblivious) => a, 63public static NullableAnnotation MergeNullableAnnotation(this NullableAnnotation a, NullableAnnotation b, VarianceKind variance) 65Debug.Assert(a != NullableAnnotation.Ignored); 66Debug.Assert(b != NullableAnnotation.Ignored); 77/// The attribute (metadata) representation of <see cref="NullableAnnotation.NotAnnotated"/>. 82/// The attribute (metadata) representation of <see cref="NullableAnnotation.Annotated"/>. 87/// The attribute (metadata) representation of <see cref="NullableAnnotation.Oblivious"/>. 98CSharp.NullableAnnotation internalAnnotation = annotation.ToInternalAnnotation(); 102internal static NullabilityInfo ToNullabilityInfo(this NullableAnnotation annotation, TypeSymbol type) 126internal static CodeAnalysis.NullableAnnotation ToPublicAnnotation(TypeSymbol? type, NullableAnnotation annotation) 128Debug.Assert(annotation != NullableAnnotation.Ignored); 131NullableAnnotation.Annotated => CodeAnalysis.NullableAnnotation.Annotated, 132NullableAnnotation.NotAnnotated => CodeAnalysis.NullableAnnotation.NotAnnotated, 137NullableAnnotation.Oblivious when type?.IsValueType == true => CodeAnalysis.NullableAnnotation.NotAnnotated, 138NullableAnnotation.Oblivious => CodeAnalysis.NullableAnnotation.None, 140NullableAnnotation.Ignored => CodeAnalysis.NullableAnnotation.None, 148internal static CSharp.NullableAnnotation ToInternalAnnotation(this CodeAnalysis.NullableAnnotation annotation) => 151CodeAnalysis.NullableAnnotation.None => CSharp.NullableAnnotation.Oblivious, 152CodeAnalysis.NullableAnnotation.NotAnnotated => CSharp.NullableAnnotation.NotAnnotated, 153CodeAnalysis.NullableAnnotation.Annotated => CSharp.NullableAnnotation.Annotated,
Symbols\PublicModel\Symbol.cs (3)
25builder.Add(TypeWithAnnotations.Create(type, (typeArg?.NullableAnnotation.ToInternalAnnotation() ?? NullableAnnotation.NotAnnotated))); 48var annotation = typeArgumentNullableAnnotations.IsDefault ? NullableAnnotation.Oblivious : typeArgumentNullableAnnotations[i].ToInternalAnnotation();
Symbols\Source\IndexedTypeParameterSymbol.cs (1)
113builder.Add(TypeWithAnnotations.Create(GetTypeParameter(i), NullableAnnotation.Ignored));
Symbols\Source\ThisParameterSymbol.cs (1)
146=> TypeWithAnnotations.Create(_containingType, NullableAnnotation.NotAnnotated);
Symbols\Synthesized\Records\SynthesizedRecordBaseEquals.cs (1)
32TypeWithAnnotations.Create(ContainingType.BaseTypeNoUseSiteDiagnostics, NullableAnnotation.Annotated),
Symbols\Synthesized\Records\SynthesizedRecordEqualityContractProperty.cs (1)
82return (TypeWithAnnotations.Create(Binder.GetWellKnownType(DeclaringCompilation, WellKnownType.System_Type, diagnostics, Location), NullableAnnotation.NotAnnotated),
Symbols\Synthesized\Records\SynthesizedRecordEqualityOperatorBase.cs (3)
69var annotation = ContainingType.IsRecordStruct ? NullableAnnotation.Oblivious : NullableAnnotation.Annotated;
Symbols\Synthesized\Records\SynthesizedRecordEquals.cs (3)
36var annotation = ContainingType.IsRecordStruct ? NullableAnnotation.Oblivious : NullableAnnotation.Annotated;
Symbols\Synthesized\Records\SynthesizedRecordObjEquals.cs (3)
31var annotation = ContainingType.IsRecordStruct ? NullableAnnotation.Oblivious : NullableAnnotation.Annotated;
Symbols\Synthesized\Records\SynthesizedRecordPrintMembers.cs (3)
93var annotation = ContainingType.IsRecordStruct ? NullableAnnotation.Oblivious : NullableAnnotation.NotAnnotated;
Symbols\Synthesized\Records\SynthesizedRecordToString.cs (3)
42var annotation = ContainingType.IsRecordStruct ? NullableAnnotation.Oblivious : NullableAnnotation.NotAnnotated;
Symbols\Synthesized\SynthesizedBackingFieldSymbol.cs (21)
83private int _inferredNullableAnnotation = (int)NullableAnnotation.Ignored; 139if (propertyType.NullableAnnotation != NullableAnnotation.NotAnnotated 149internal NullableAnnotation GetInferredNullableAnnotation() 151if (_inferredNullableAnnotation == (int)NullableAnnotation.Ignored) 153var inferredAnnotation = ComputeInferredNullableAnnotation(); 154Debug.Assert(inferredAnnotation is not NullableAnnotation.Ignored); 155Interlocked.CompareExchange(ref _inferredNullableAnnotation, (int)inferredAnnotation, (int)NullableAnnotation.Ignored); 157Debug.Assert((NullableAnnotation)_inferredNullableAnnotation is NullableAnnotation.NotAnnotated or NullableAnnotation.Annotated); 158return (NullableAnnotation)_inferredNullableAnnotation; 161private NullableAnnotation ComputeInferredNullableAnnotation() 170return NullableAnnotation.Annotated; 176return NullableAnnotation.NotAnnotated; 181var annotatedDiagnostics = nullableAnalyzeAndFilterDiagnostics(assumedNullableAnnotation: NullableAnnotation.Annotated); 186return NullableAnnotation.Annotated; 189var notAnnotatedDiagnostics = nullableAnalyzeAndFilterDiagnostics(assumedNullableAnnotation: NullableAnnotation.NotAnnotated); 195return NullableAnnotation.NotAnnotated; 209return NullableAnnotation.NotAnnotated; 214return NullableAnnotation.Annotated; 216DiagnosticBag nullableAnalyzeAndFilterDiagnostics(NullableAnnotation assumedNullableAnnotation)
Symbols\TypeMap.cs (1)
32return typeParameters.SelectAsArray(static (tp) => TypeWithAnnotations.Create(tp, NullableAnnotation.Ignored));
Symbols\TypeSymbol.cs (1)
2514internal CodeAnalysis.NullableAnnotation DefaultNullableAnnotation => NullableAnnotationExtensions.ToPublicAnnotation(this, NullableAnnotation.Oblivious);
Symbols\TypeWithAnnotations.cs (73)
51public readonly NullableAnnotation DefaultNullableAnnotation; 53private TypeWithAnnotations(TypeSymbol defaultType, NullableAnnotation defaultAnnotation, Extensions extensions) 55Debug.Assert(defaultType?.IsNullableType() != true || defaultAnnotation == NullableAnnotation.Annotated); 82return Create(typeSymbol, nullableAnnotation: isAnnotated ? NullableAnnotation.Annotated : isNullableEnabled ? NullableAnnotation.NotAnnotated : NullableAnnotation.Oblivious); 85internal static TypeWithAnnotations Create(TypeSymbol typeSymbol, NullableAnnotation nullableAnnotation = NullableAnnotation.Oblivious, ImmutableArray<CustomModifier> customModifiers = default) 92Debug.Assert(nullableAnnotation != NullableAnnotation.Ignored || typeSymbol.IsTypeParameter()); 95case NullableAnnotation.Oblivious: 96case NullableAnnotation.NotAnnotated: 100nullableAnnotation = NullableAnnotation.Annotated; 115return Create(Type, NullableAnnotation.Annotated, CustomModifiers); 125return Create(Type, NullableAnnotation.NotAnnotated, CustomModifiers); 129internal NullableAnnotation GetValueNullableAnnotation() 138return NullableAnnotation.Annotated; 143return NullableAnnotation.Annotated; 155case NullableAnnotation.Oblivious: 156case NullableAnnotation.Annotated: 159case NullableAnnotation.NotAnnotated: 168private static TypeWithAnnotations CreateNonLazyType(TypeSymbol typeSymbol, NullableAnnotation nullableAnnotation, ImmutableArray<CustomModifier> customModifiers) 175return new TypeWithAnnotations(defaultType: underlying.DefaultType, defaultAnnotation: NullableAnnotation.Annotated, new LazyNullableTypeParameter(compilation, underlying)); 180return new TypeWithAnnotations(defaultType: substitutedTypeSymbol, defaultAnnotation: NullableAnnotation.Ignored, new LazySubstitutedType(customModifiers, typeParameter)); 204return CreateNonLazyType(typeSymbol, NullableAnnotation.Annotated, this.CustomModifiers); 244NullableAnnotation nullableAnnotation = this.NullableAnnotation.MergeNullableAnnotation(other.NullableAnnotation, variance); 255public NullableAnnotation NullableAnnotation => _extensions?.GetResolvedAnnotation(DefaultNullableAnnotation) ?? default; 364var thisAnnotation = NullableAnnotation; 365var otherAnnotation = other.NullableAnnotation; 442Debug.Assert(NullableAnnotation != NullableAnnotation.Ignored); 452Debug.Assert(NullableAnnotation != NullableAnnotation.Ignored); 473else if (Is((TypeParameterSymbol)typeSymbol) && newTypeWithModifiers.NullableAnnotation != NullableAnnotation.Ignored) 483NullableAnnotation newAnnotation; 484Debug.Assert(newTypeWithModifiers.Type is not IndexedTypeParameterSymbol || newTypeWithModifiers.NullableAnnotation == NullableAnnotation.Ignored); 488newAnnotation = NullableAnnotation.Annotated; 490else if (newTypeWithModifiers.NullableAnnotation == NullableAnnotation.Ignored) 494else if (NullableAnnotation != NullableAnnotation.Oblivious) 496Debug.Assert(NullableAnnotation == NullableAnnotation.NotAnnotated); 497if (newTypeWithModifiers.NullableAnnotation == NullableAnnotation.Oblivious) 505newAnnotation = NullableAnnotation.NotAnnotated; 518Debug.Assert(newTypeWithModifiers.NullableAnnotation is NullableAnnotation.NotAnnotated); 519newAnnotation = NullableAnnotation.NotAnnotated; 522else if (newTypeWithModifiers.NullableAnnotation != NullableAnnotation.Oblivious) 596typeWithAnnotationsPredicate: (t, a, b) => t.NullableAnnotation != NullableAnnotation.Oblivious && !t.Type.IsErrorType() && !t.Type.IsValueType, 633var annotation = typeWithAnnotations.NullableAnnotation; 709if (result.NullableAnnotation != NullableAnnotation.Oblivious && 712result = CreateNonLazyType(newTypeSymbol, NullableAnnotation.Oblivious, result.CustomModifiers); 732return CreateNonLazyType(typeSymbol, NullableAnnotation.NotAnnotated, CustomModifiers); 740if (NullableAnnotation != NullableAnnotation.Oblivious) 745return CreateNonLazyType(newTypeSymbol, NullableAnnotation.Oblivious, CustomModifiers); 813static NullableFlowState getFlowState(TypeSymbol type, NullableAnnotation annotation) 821return annotation switch { NullableAnnotation.Annotated => NullableFlowState.MaybeDefault, NullableAnnotation.NotAnnotated => NullableFlowState.MaybeNull, _ => NullableFlowState.NotNull }; 825return annotation switch { NullableAnnotation.Annotated => NullableFlowState.MaybeDefault, _ => NullableFlowState.NotNull }; 831return annotation switch { NullableAnnotation.Annotated => NullableFlowState.MaybeNull, _ => NullableFlowState.NotNull }; 853internal abstract NullableAnnotation GetResolvedAnnotation(NullableAnnotation defaultAnnotation); 894internal override NullableAnnotation GetResolvedAnnotation(NullableAnnotation defaultAnnotation) => defaultAnnotation; 921return CreateNonLazyType(type.DefaultType, NullableAnnotation.Annotated, _customModifiers); 927return CreateNonLazyType(defaultType, defaultType.IsNullableType() ? type.NullableAnnotation : NullableAnnotation.NotAnnotated, _customModifiers); 978internal override NullableAnnotation GetResolvedAnnotation(NullableAnnotation defaultAnnotation) 980Debug.Assert(defaultAnnotation == NullableAnnotation.Ignored); 987return (NullableAnnotation)_resolved; 989NullableAnnotation getResolvedAnnotationCore() 994return NullableAnnotation.NotAnnotated; 1000return NullableAnnotation.Oblivious; 1008internal override bool IsResolved => _resolved != (int)NullableAnnotation.Ignored; 1024return CreateNonLazyType(type.DefaultType, NullableAnnotation.Annotated, _customModifiers); 1030return CreateNonLazyType(defaultType, defaultType.IsNullableType() ? type.NullableAnnotation : NullableAnnotation.NotAnnotated, _customModifiers); 1051_ = GetResolvedAnnotation(NullableAnnotation.Ignored); 1109internal override NullableAnnotation GetResolvedAnnotation(NullableAnnotation defaultAnnotation) => defaultAnnotation;
Symbols\TypeWithState.cs (6)
89var type = TypeWithAnnotations.Create(Type, NullableAnnotation.NotAnnotated); 92NullableAnnotation annotation = asAnnotatedType ? 93(Type?.IsValueType == true ? NullableAnnotation.NotAnnotated : NullableAnnotation.Annotated) : 94(State.IsNotNull() || Type?.CanContainNull() == false ? NullableAnnotation.NotAnnotated : NullableAnnotation.Annotated);