803var annotations = usesFieldKeyword ? field!.FlowAnalysisAnnotations : symbol.GetFlowAnalysisAnnotations(); 804if ((annotations & FlowAnalysisAnnotations.AllowNull) != 0) 822var badState = symbolType.Type.IsPossiblyNullableReferenceTypeTypeParameter() && (annotations & FlowAnalysisAnnotations.NotNull) == 0 1061var symbolAnnotations = property is SourcePropertySymbolBase { UsesFieldKeyword: true, BackingField: { } field } 1070var overriddenAnnotations = overriddenProperty.GetFlowAnalysisAnnotations(); 1318var annotations = parameter.FlowAnalysisAnnotations; 1319var hasNotNull = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 1380FlowAnalysisAnnotations annotations = parameter.FlowAnalysisAnnotations; 1383bool hasNotNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenTrue; 1384bool hasMaybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenFalse; 1391bool hasNotNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenFalse; 1392bool hasMaybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenTrue; 1435((method.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) == FlowAnalysisAnnotations.DoesNotReturn) && 2383/// This should often be checked together with <seealso cref="IsDisallowedNullAssignment(TypeWithState, FlowAnalysisAnnotations)"/> 2496FlowAnalysisAnnotations overriddenAnnotations, 2498FlowAnalysisAnnotations overridingAnnotations, 2524bool overridingHasNotNull = (overridingAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 2525bool overriddenHasNotNull = (overriddenAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 2532bool overridingHasMaybeNull = (overridingAnnotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull; 2533bool overriddenHasMaybeNull = (overriddenAnnotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull; 2558var destAnnotationsWhen = ToInwardAnnotations(makeUnconditionalAnnotation(overriddenAnnotations, sense)); 2568static bool isBadAssignment(TypeWithState valueState, TypeWithAnnotations destinationType, FlowAnalysisAnnotations destinationAnnotations) 2586static FlowAnalysisAnnotations makeUnconditionalAnnotation(FlowAnalysisAnnotations annotations, bool sense) 2590var unconditionalAnnotationWhenTrue = makeUnconditionalAnnotationCore(annotations, FlowAnalysisAnnotations.NotNullWhenTrue, FlowAnalysisAnnotations.NotNull); 2591return makeUnconditionalAnnotationCore(unconditionalAnnotationWhenTrue, FlowAnalysisAnnotations.MaybeNullWhenTrue, FlowAnalysisAnnotations.MaybeNull); 2594var unconditionalAnnotationWhenFalse = makeUnconditionalAnnotationCore(annotations, FlowAnalysisAnnotations.NotNullWhenFalse, FlowAnalysisAnnotations.NotNull); 2595return makeUnconditionalAnnotationCore(unconditionalAnnotationWhenFalse, FlowAnalysisAnnotations.MaybeNullWhenFalse, FlowAnalysisAnnotations.MaybeNull); 2599static FlowAnalysisAnnotations makeUnconditionalAnnotationCore(FlowAnalysisAnnotations annotations, FlowAnalysisAnnotations conditionalAnnotation, FlowAnalysisAnnotations replacementAnnotation) 3029var parameterAnnotations = GetParameterAnnotations(parameter); 3046internal static TypeWithState GetParameterState(TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations) 3048if ((parameterAnnotations & FlowAnalysisAnnotations.AllowNull) != 0) 3053if ((parameterAnnotations & FlowAnalysisAnnotations.DisallowNull) != 0) 3076TryGetReturnType(out TypeWithAnnotations returnType, out FlowAnalysisAnnotations returnAnnotations)) 3157private bool TryGetReturnType(out TypeWithAnnotations type, out FlowAnalysisAnnotations annotations) 3163annotations = FlowAnalysisAnnotations.None; 3174annotations = FlowAnalysisAnnotations.None; 3188annotations = FlowAnalysisAnnotations.None; 3193annotations = FlowAnalysisAnnotations.None; 4031var annotations = createMethod.GetFlowAnalysisAnnotations(); 5506out FlowAnalysisAnnotations parameterAnnotations) 5531FlowAnalysisAnnotations parameterAnnotations; 6563FlowAnalysisAnnotations annotations; 7058private FlowAnalysisAnnotations GetRValueAnnotations(Symbol? symbol) 7064return FlowAnalysisAnnotations.None; 7067var annotations = symbol.GetFlowAnalysisAnnotations(); 7068return annotations & (FlowAnalysisAnnotations.MaybeNull | FlowAnalysisAnnotations.NotNull); 7071private FlowAnalysisAnnotations GetParameterAnnotations(ParameterSymbol parameter) 7076return FlowAnalysisAnnotations.None; 7078var annotations = parameter.FlowAnalysisAnnotations; 7085bool hasNotNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenTrue; 7086bool hasNotNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenFalse; 7089annotations &= ~FlowAnalysisAnnotations.NotNull; 7093bool hasMaybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenTrue; 7094bool hasMaybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenFalse; 7097annotations &= ~FlowAnalysisAnnotations.MaybeNull; 7108private static TypeWithAnnotations ApplyLValueAnnotations(TypeWithAnnotations declaredType, FlowAnalysisAnnotations flowAnalysisAnnotations) 7110if ((flowAnalysisAnnotations & FlowAnalysisAnnotations.DisallowNull) == FlowAnalysisAnnotations.DisallowNull) 7114else if ((flowAnalysisAnnotations & FlowAnalysisAnnotations.AllowNull) == FlowAnalysisAnnotations.AllowNull) 7125private static TypeWithState ApplyUnconditionalAnnotations(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 7127if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 7132if ((annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull) 7140private static TypeWithAnnotations ApplyUnconditionalAnnotations(TypeWithAnnotations declaredType, FlowAnalysisAnnotations annotations) 7142if ((annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull) 7147if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 7358(ParameterSymbol? parameter, TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations, bool isExpandedParamsArgument) = 7434(ParameterSymbol? parameter, TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations, _) = 7465if (!IsAnalyzingAttribute && method is not null && (method.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) == FlowAnalysisAnnotations.DoesNotReturn) 7733ImmutableArray<FlowAnalysisAnnotations> parameterAnnotationsOpt, 7765private ImmutableArray<FlowAnalysisAnnotations> GetParametersAnnotations(ImmutableArray<BoundExpression> arguments, ImmutableArray<ParameterSymbol> parametersOpt, ImmutableArray<int> argsToParamsOpt, bool expanded) 7767ImmutableArray<FlowAnalysisAnnotations> parameterAnnotationsOpt = default; 7793private VisitResult VisitArgumentEvaluate(BoundExpression argument, RefKind refKind, FlowAnalysisAnnotations annotations) 7805private VisitResult VisitArgumentEvaluateEpilogue(BoundExpression argument, RefKind refKind, FlowAnalysisAnnotations annotations) 7816switch (annotations & (FlowAnalysisAnnotations.DoesNotReturnIfTrue | FlowAnalysisAnnotations.DoesNotReturnIfFalse)) 7818case FlowAnalysisAnnotations.DoesNotReturnIfTrue: 7825case FlowAnalysisAnnotations.DoesNotReturnIfFalse: 7863FlowAnalysisAnnotations parameterAnnotations, 7945private bool CheckDisallowedNullAssignment(TypeWithState state, FlowAnalysisAnnotations annotations, SyntaxNode node, BoundExpression? boundValueOpt = null) 7963private static bool IsDisallowedNullAssignment(TypeWithState valueState, FlowAnalysisAnnotations targetAnnotations) 7965return ((targetAnnotations & FlowAnalysisAnnotations.DisallowNull) != 0) && 8000FlowAnalysisAnnotations parameterAnnotations, 8035var leftAnnotations = GetLValueAnnotations(argument); 8054var leftAnnotations = GetLValueAnnotations(argument); 8093FlowAnalysisAnnotations notNullBasedOnParameters(FlowAnalysisAnnotations parameterAnnotations, ArrayBuilder<ParameterSymbol>? notNullParametersOpt, ParameterSymbol parameter) 8104return FlowAnalysisAnnotations.NotNull; 8112void trackNullableStateForAssignment(BoundExpression parameterValue, TypeWithAnnotations lValueType, int targetSlot, TypeWithState parameterWithState, bool isSuppressed, FlowAnalysisAnnotations parameterAnnotations) 8137static bool hasConditionalPostCondition(FlowAnalysisAnnotations annotations) 8139return (((annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0) ^ ((annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0)) || 8140(((annotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0) ^ ((annotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0)); 8143static TypeWithState applyPostConditionsUnconditionally(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 8145if ((annotations & FlowAnalysisAnnotations.MaybeNull) != 0) 8151if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 8160static TypeWithState applyPostConditionsWhenTrue(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 8162bool notNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0; 8163bool maybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 8164bool maybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 8179static TypeWithState applyPostConditionsWhenFalse(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 8181bool notNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0; 8182bool maybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 8183bool maybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 8202private void LearnFromPostConditions(BoundExpression argument, FlowAnalysisAnnotations parameterAnnotations) 8205bool notNullWhenTrue = (parameterAnnotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0; 8206bool notNullWhenFalse = (parameterAnnotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0; 8209bool maybeNullWhenTrue = (parameterAnnotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 8210bool maybeNullWhenFalse = (parameterAnnotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 8295private (ParameterSymbol? Parameter, TypeWithAnnotations Type, FlowAnalysisAnnotations Annotations, bool isExpandedParamsArgument) GetCorrespondingParameter( 8323return (parameter, paramsIterationType, FlowAnalysisAnnotations.None, isExpandedParamsArgument: true); 9989var parameterAnnotations = GetParameterAnnotations(parameter); 10566FlowAnalysisAnnotations leftAnnotations; 10625var annotations = IsAnalyzingAttribute ? FlowAnalysisAnnotations.None : property.GetFlowAnalysisAnnotations(); 10656private FlowAnalysisAnnotations GetLValueAnnotations(BoundExpression expr) 10664return FlowAnalysisAnnotations.None; 10667var annotations = expr switch 10673=> ToInwardAnnotations(GetParameterAnnotations(parameter) & ~FlowAnalysisAnnotations.NotNull), // NotNull is enforced upon method exit 10674_ => FlowAnalysisAnnotations.None 10677return annotations & (FlowAnalysisAnnotations.DisallowNull | FlowAnalysisAnnotations.AllowNull); 10680private static FlowAnalysisAnnotations GetFieldAnnotations(FieldSymbol field) 10687private FlowAnalysisAnnotations GetObjectInitializerMemberLValueAnnotations(Symbol memberSymbol) 10693return FlowAnalysisAnnotations.None; 10696var annotations = memberSymbol switch { PropertySymbol prop => prop.GetFlowAnalysisAnnotations(), FieldSymbol field => GetFieldAnnotations(field), _ => FlowAnalysisAnnotations.None }; 10698return annotations & (FlowAnalysisAnnotations.DisallowNull | FlowAnalysisAnnotations.AllowNull); 10701private static FlowAnalysisAnnotations ToInwardAnnotations(FlowAnalysisAnnotations outwardAnnotations) 10703var annotations = FlowAnalysisAnnotations.None; 10704if ((outwardAnnotations & FlowAnalysisAnnotations.MaybeNull) != 0) 10707annotations |= FlowAnalysisAnnotations.AllowNull; 10709if ((outwardAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 10712annotations |= FlowAnalysisAnnotations.DisallowNull; 10900var leftAnnotations = GetLValueAnnotations(variable.Expression); 11331var leftArgumentAnnotations = GetLValueAnnotations(node.Left); 11468FlowAnalysisAnnotations memberAnnotations = GetRValueAnnotations(updatedProperty); 11584var memberAnnotations = GetRValueAnnotations(member);

150public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

195public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => BaseMethod.ReturnTypeFlowAnalysisAnnotations; 199public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

44public override FlowAnalysisAnnotations FlowAnalysisAnnotations 45=> FlowAnalysisAnnotations.None;

104public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

175public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 179public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

70public abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

845public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 847public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

91internal override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

53public bool SetFlowAnalysisAnnotations(FlowAnalysisAnnotations value) 55Debug.Assert((value & ~(FlowAnalysisAnnotations.DisallowNull | FlowAnalysisAnnotations.AllowNull | FlowAnalysisAnnotations.MaybeNull | FlowAnalysisAnnotations.NotNull)) == 0); 58if ((value & FlowAnalysisAnnotations.DisallowNull) != 0) bitsToSet |= PackedFlags.HasDisallowNullAttribute; 59if ((value & FlowAnalysisAnnotations.AllowNull) != 0) bitsToSet |= PackedFlags.HasAllowNullAttribute; 60if ((value & FlowAnalysisAnnotations.MaybeNull) != 0) bitsToSet |= PackedFlags.HasMaybeNullAttribute; 61if ((value & FlowAnalysisAnnotations.NotNull) != 0) bitsToSet |= PackedFlags.HasNotNullAttribute; 66public bool TryGetFlowAnalysisAnnotations(out FlowAnalysisAnnotations value) 69value = FlowAnalysisAnnotations.None; 70if ((theBits & PackedFlags.HasDisallowNullAttribute) != 0) value |= FlowAnalysisAnnotations.DisallowNull; 71if ((theBits & PackedFlags.HasAllowNullAttribute) != 0) value |= FlowAnalysisAnnotations.AllowNull; 72if ((theBits & PackedFlags.HasMaybeNullAttribute) != 0) value |= FlowAnalysisAnnotations.MaybeNull; 73if ((theBits & PackedFlags.HasNotNullAttribute) != 0) value |= FlowAnalysisAnnotations.NotNull; 401public override FlowAnalysisAnnotations FlowAnalysisAnnotations 405FlowAnalysisAnnotations value; 415private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(PEModule module, FieldDefinitionHandle handle) 417FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 418if (module.HasAttribute(handle, AttributeDescription.AllowNullAttribute)) annotations |= FlowAnalysisAnnotations.AllowNull; 419if (module.HasAttribute(handle, AttributeDescription.DisallowNullAttribute)) annotations |= FlowAnalysisAnnotations.DisallowNull; 420if (module.HasAttribute(handle, AttributeDescription.MaybeNullAttribute)) annotations |= FlowAnalysisAnnotations.MaybeNull; 421if (module.HasAttribute(handle, AttributeDescription.NotNullAttribute)) annotations |= FlowAnalysisAnnotations.NotNull;

666public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => Signature.ReturnParam.FlowAnalysisAnnotations; 670public override FlowAnalysisAnnotations FlowAnalysisAnnotations 681return _packedFlags.DoesNotReturn ? FlowAnalysisAnnotations.DoesNotReturn : FlowAnalysisAnnotations.None;

99Debug.Assert(EnumUtilities.ContainsAllValues<FlowAnalysisAnnotations>(FlowAnalysisAnnotationsMask)); 136public bool SetFlowAnalysisAnnotations(FlowAnalysisAnnotations value) 142public bool TryGetFlowAnalysisAnnotations(out FlowAnalysisAnnotations value) 145value = (FlowAnalysisAnnotations)((theBits >> FlowAnalysisAnnotationsOffset) & FlowAnalysisAnnotationsMask); 780internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 784FlowAnalysisAnnotations value; 794private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(PEModule module, ParameterHandle handle) 796FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 797if (module.HasAttribute(handle, AttributeDescription.AllowNullAttribute)) annotations |= FlowAnalysisAnnotations.AllowNull; 798if (module.HasAttribute(handle, AttributeDescription.DisallowNullAttribute)) annotations |= FlowAnalysisAnnotations.DisallowNull; 802annotations |= FlowAnalysisAnnotations.MaybeNull; 806annotations |= (when ? FlowAnalysisAnnotations.MaybeNullWhenTrue : FlowAnalysisAnnotations.MaybeNullWhenFalse); 811annotations |= FlowAnalysisAnnotations.NotNull; 815annotations |= (when ? FlowAnalysisAnnotations.NotNullWhenTrue : FlowAnalysisAnnotations.NotNullWhenFalse); 820annotations |= (condition ? FlowAnalysisAnnotations.DoesNotReturnIfTrue : FlowAnalysisAnnotations.DoesNotReturnIfFalse);

251public abstract FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations { get; } 258public abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

414internal abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

499public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => _reducedFrom.ReturnTypeFlowAnalysisAnnotations; 503public override FlowAnalysisAnnotations FlowAnalysisAnnotations => _reducedFrom.FlowAnalysisAnnotations;

79public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 83public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

95internal override FlowAnalysisAnnotations FlowAnalysisAnnotations { get { throw ExceptionUtilities.Unreachable(); } }

245public override FlowAnalysisAnnotations FlowAnalysisAnnotations 248private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(FieldWellKnownAttributeData attributeData) 250var annotations = FlowAnalysisAnnotations.None; 253if (attributeData.HasAllowNullAttribute) annotations |= FlowAnalysisAnnotations.AllowNull; 254if (attributeData.HasDisallowNullAttribute) annotations |= FlowAnalysisAnnotations.DisallowNull; 255if (attributeData.HasMaybeNullAttribute) annotations |= FlowAnalysisAnnotations.MaybeNull; 256if (attributeData.HasNotNullAttribute) annotations |= FlowAnalysisAnnotations.NotNull;

152internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 154get { return FlowAnalysisAnnotations.None; }

148internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 156private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(ParameterWellKnownAttributeData attributeData) 160return FlowAnalysisAnnotations.None; 162FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 163if (attributeData.HasAllowNullAttribute) annotations |= FlowAnalysisAnnotations.AllowNull; 164if (attributeData.HasDisallowNullAttribute) annotations |= FlowAnalysisAnnotations.DisallowNull; 168annotations |= FlowAnalysisAnnotations.MaybeNull; 174annotations |= (when ? FlowAnalysisAnnotations.MaybeNullWhenTrue : FlowAnalysisAnnotations.MaybeNullWhenFalse); 180annotations |= FlowAnalysisAnnotations.NotNull; 186annotations |= (when ? FlowAnalysisAnnotations.NotNullWhenTrue : FlowAnalysisAnnotations.NotNullWhenFalse); 192annotations |= (condition ? FlowAnalysisAnnotations.DoesNotReturnIfTrue : FlowAnalysisAnnotations.DoesNotReturnIfFalse);

1255if ((baseMethod.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) == FlowAnalysisAnnotations.DoesNotReturn && 1256(overrideMethod.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) != FlowAnalysisAnnotations.DoesNotReturn)

108public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => 683public override FlowAnalysisAnnotations FlowAnalysisAnnotations 691private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(MethodWellKnownAttributeData attributeData) 692=> attributeData?.HasDoesNotReturnAttribute == true ? FlowAnalysisAnnotations.DoesNotReturn : FlowAnalysisAnnotations.None; 1626private static FlowAnalysisAnnotations DecodeReturnTypeAnnotationAttributes(ReturnTypeWellKnownAttributeData attributeData) 1628FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 1633annotations |= FlowAnalysisAnnotations.MaybeNull; 1637annotations |= FlowAnalysisAnnotations.NotNull;

355public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations 361return FlowAnalysisAnnotations.None; 364var result = FlowAnalysisAnnotations.None; 367result |= FlowAnalysisAnnotations.MaybeNull; 371result |= FlowAnalysisAnnotations.NotNull; 805var annotations = ReturnTypeFlowAnalysisAnnotations; 806if ((annotations & FlowAnalysisAnnotations.MaybeNull) != 0) 810if ((annotations & FlowAnalysisAnnotations.NotNull) != 0)

132internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 134get { return FlowAnalysisAnnotations.None; }

78internal sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations 80get { return FlowAnalysisAnnotations.None; }

437internal static FlowAnalysisAnnotations GetFlowAnalysisAnnotations(this PropertySymbol property) 439var annotations = property.GetOwnOrInheritedGetMethod()?.ReturnTypeFlowAnalysisAnnotations ?? FlowAnalysisAnnotations.None; 451annotations |= FlowAnalysisAnnotations.AllowNull; 455annotations |= FlowAnalysisAnnotations.DisallowNull; 462internal static FlowAnalysisAnnotations GetFlowAnalysisAnnotations(this Symbol? symbol) 470_ => FlowAnalysisAnnotations.None

34internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 38var result = FlowAnalysisAnnotations.None; 43result |= FlowAnalysisAnnotations.DisallowNull; 47result |= FlowAnalysisAnnotations.AllowNull; 91var annotations = FlowAnalysisAnnotations; 92if ((annotations & FlowAnalysisAnnotations.DisallowNull) != 0) 96if ((annotations & FlowAnalysisAnnotations.AllowNull) != 0)

134if (FlowAnalysisAnnotations != FlowAnalysisAnnotations.None)

167public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

145public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 149public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

91public override FlowAnalysisAnnotations FlowAnalysisAnnotations 92=> FlowAnalysisAnnotations.None;

120public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 216public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations 218get { return FlowAnalysisAnnotations.None; }

106public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

159public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

149public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

233public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 237public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

86public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

118internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 120get { return FlowAnalysisAnnotations.None; } 419internal override FlowAnalysisAnnotations FlowAnalysisAnnotations

197public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

163public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 167public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

143public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 147public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

40public static TypeWithState Create(TypeWithAnnotations typeWithAnnotations, FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None) 48if ((annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull) 52else if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull)

47public override FlowAnalysisAnnotations FlowAnalysisAnnotations

322public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => UnderlyingMethod.ReturnTypeFlowAnalysisAnnotations; 326public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => UnderlyingMethod.FlowAnalysisAnnotations;

149internal override FlowAnalysisAnnotations FlowAnalysisAnnotations

4214Assert.Equal(FlowAnalysisAnnotations.MaybeNull | FlowAnalysisAnnotations.NotNull, lambdas[0].ReturnTypeFlowAnalysisAnnotations); 4789Assert.Equal(FlowAnalysisAnnotations.DoesNotReturn, lambdas[0].FlowAnalysisAnnotations); 4790Assert.Equal(FlowAnalysisAnnotations.DoesNotReturn, lambdas[1].FlowAnalysisAnnotations); 4984Assert.Equal(FlowAnalysisAnnotations.AllowNull | FlowAnalysisAnnotations.MaybeNullWhenFalse, lambdas[0].Parameters[0].FlowAnalysisAnnotations); 5029Assert.Equal(FlowAnalysisAnnotations.NotNullWhenTrue, lambda.Parameters[0].FlowAnalysisAnnotations);

22using static Microsoft.CodeAnalysis.CSharp.Symbols.FlowAnalysisAnnotations; 30205Assert.Equal(FlowAnalysisAnnotations.MaybeNull, getter.ReturnTypeFlowAnalysisAnnotations); 30226Assert.Equal(FlowAnalysisAnnotations.None, setter.ReturnTypeFlowAnalysisAnnotations); 30308Assert.Equal(FlowAnalysisAnnotations.MaybeNull | FlowAnalysisAnnotations.NotNull, getter.ReturnTypeFlowAnalysisAnnotations); 38064private static void VerifyAnnotations(CSharpCompilation compilation, string memberName, params FlowAnalysisAnnotations[] expected) 38072private void VerifyAnnotationsAndMetadata(CSharpCompilation compilation, string memberName, params FlowAnalysisAnnotations[] expected) 40986Assert.Equal(FlowAnalysisAnnotations.AllowNull, setter.Parameters.Last().FlowAnalysisAnnotations); 40996Assert.Equal(FlowAnalysisAnnotations.None, setter.ReturnTypeFlowAnalysisAnnotations); 41047Assert.Equal(FlowAnalysisAnnotations.AllowNull | FlowAnalysisAnnotations.DisallowNull, setter.Parameters.Last().FlowAnalysisAnnotations); 44674Assert.Equal(FlowAnalysisAnnotations.DisallowNull, setter.Parameters.Last().FlowAnalysisAnnotations); 48002Assert.Equal(FlowAnalysisAnnotations.NotNull, getter.ReturnTypeFlowAnalysisAnnotations);

63Assert.Equal(FlowAnalysisAnnotations.None, symbol.ReturnTypeFlowAnalysisAnnotations); 64Assert.Equal(FlowAnalysisAnnotations.None, symbol.FlowAnalysisAnnotations); 110Assert.Equal(FlowAnalysisAnnotations.None, symbol.FlowAnalysisAnnotations);