778var annotations = usesFieldKeyword ? field!.FlowAnalysisAnnotations : symbol.GetFlowAnalysisAnnotations(); 779if ((annotations & FlowAnalysisAnnotations.AllowNull) != 0) 797var badState = symbolType.Type.IsPossiblyNullableReferenceTypeTypeParameter() && (annotations & FlowAnalysisAnnotations.NotNull) == 0 1036var symbolAnnotations = property is SourcePropertySymbolBase { UsesFieldKeyword: true, BackingField: { } field } 1045var overriddenAnnotations = overriddenProperty.GetFlowAnalysisAnnotations(); 1293var annotations = parameter.FlowAnalysisAnnotations; 1294var hasNotNull = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 1355FlowAnalysisAnnotations annotations = parameter.FlowAnalysisAnnotations; 1358bool hasNotNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenTrue; 1359bool hasMaybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenFalse; 1366bool hasNotNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenFalse; 1367bool hasMaybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenTrue; 1410((method.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) == FlowAnalysisAnnotations.DoesNotReturn) && 2357/// This should often be checked together with <seealso cref="IsDisallowedNullAssignment(TypeWithState, FlowAnalysisAnnotations)"/> 2470FlowAnalysisAnnotations overriddenAnnotations, 2472FlowAnalysisAnnotations overridingAnnotations, 2498bool overridingHasNotNull = (overridingAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 2499bool overriddenHasNotNull = (overriddenAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull; 2506bool overridingHasMaybeNull = (overridingAnnotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull; 2507bool overriddenHasMaybeNull = (overriddenAnnotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull; 2532var destAnnotationsWhen = ToInwardAnnotations(makeUnconditionalAnnotation(overriddenAnnotations, sense)); 2542static bool isBadAssignment(TypeWithState valueState, TypeWithAnnotations destinationType, FlowAnalysisAnnotations destinationAnnotations) 2560static FlowAnalysisAnnotations makeUnconditionalAnnotation(FlowAnalysisAnnotations annotations, bool sense) 2564var unconditionalAnnotationWhenTrue = makeUnconditionalAnnotationCore(annotations, FlowAnalysisAnnotations.NotNullWhenTrue, FlowAnalysisAnnotations.NotNull); 2565return makeUnconditionalAnnotationCore(unconditionalAnnotationWhenTrue, FlowAnalysisAnnotations.MaybeNullWhenTrue, FlowAnalysisAnnotations.MaybeNull); 2568var unconditionalAnnotationWhenFalse = makeUnconditionalAnnotationCore(annotations, FlowAnalysisAnnotations.NotNullWhenFalse, FlowAnalysisAnnotations.NotNull); 2569return makeUnconditionalAnnotationCore(unconditionalAnnotationWhenFalse, FlowAnalysisAnnotations.MaybeNullWhenFalse, FlowAnalysisAnnotations.MaybeNull); 2573static FlowAnalysisAnnotations makeUnconditionalAnnotationCore(FlowAnalysisAnnotations annotations, FlowAnalysisAnnotations conditionalAnnotation, FlowAnalysisAnnotations replacementAnnotation) 3003var parameterAnnotations = GetParameterAnnotations(parameter); 3020internal static TypeWithState GetParameterState(TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations) 3022if ((parameterAnnotations & FlowAnalysisAnnotations.AllowNull) != 0) 3027if ((parameterAnnotations & FlowAnalysisAnnotations.DisallowNull) != 0) 3050TryGetReturnType(out TypeWithAnnotations returnType, out FlowAnalysisAnnotations returnAnnotations)) 3131private bool TryGetReturnType(out TypeWithAnnotations type, out FlowAnalysisAnnotations annotations) 3137annotations = FlowAnalysisAnnotations.None; 3148annotations = FlowAnalysisAnnotations.None; 3162annotations = FlowAnalysisAnnotations.None; 3167annotations = FlowAnalysisAnnotations.None; 3958var annotations = createMethod.GetFlowAnalysisAnnotations(); 5336var parameterAnnotations = GetParameterAnnotations(parameter); 6385FlowAnalysisAnnotations annotations; 6846private FlowAnalysisAnnotations GetRValueAnnotations(Symbol? symbol) 6852return FlowAnalysisAnnotations.None; 6855var annotations = symbol.GetFlowAnalysisAnnotations(); 6856return annotations & (FlowAnalysisAnnotations.MaybeNull | FlowAnalysisAnnotations.NotNull); 6859private FlowAnalysisAnnotations GetParameterAnnotations(ParameterSymbol parameter) 6864return FlowAnalysisAnnotations.None; 6866var annotations = parameter.FlowAnalysisAnnotations; 6873bool hasNotNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenTrue; 6874bool hasNotNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNullWhenFalse; 6877annotations &= ~FlowAnalysisAnnotations.NotNull; 6881bool hasMaybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenTrue; 6882bool hasMaybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNullWhenFalse; 6885annotations &= ~FlowAnalysisAnnotations.MaybeNull; 6896private static TypeWithAnnotations ApplyLValueAnnotations(TypeWithAnnotations declaredType, FlowAnalysisAnnotations flowAnalysisAnnotations) 6898if ((flowAnalysisAnnotations & FlowAnalysisAnnotations.DisallowNull) == FlowAnalysisAnnotations.DisallowNull) 6902else if ((flowAnalysisAnnotations & FlowAnalysisAnnotations.AllowNull) == FlowAnalysisAnnotations.AllowNull) 6913private static TypeWithState ApplyUnconditionalAnnotations(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 6915if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 6920if ((annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull) 6928private static TypeWithAnnotations ApplyUnconditionalAnnotations(TypeWithAnnotations declaredType, FlowAnalysisAnnotations annotations) 6930if ((annotations & FlowAnalysisAnnotations.MaybeNull) == FlowAnalysisAnnotations.MaybeNull) 6935if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 7132(ParameterSymbol? parameter, TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations, bool isExpandedParamsArgument) = 7208(ParameterSymbol? parameter, TypeWithAnnotations parameterType, FlowAnalysisAnnotations parameterAnnotations, _) = 7239if (!IsAnalyzingAttribute && method is object && (method.FlowAnalysisAnnotations & FlowAnalysisAnnotations.DoesNotReturn) == FlowAnalysisAnnotations.DoesNotReturn) 7507ImmutableArray<FlowAnalysisAnnotations> parameterAnnotationsOpt, 7539private ImmutableArray<FlowAnalysisAnnotations> GetParametersAnnotations(ImmutableArray<BoundExpression> arguments, ImmutableArray<ParameterSymbol> parametersOpt, ImmutableArray<int> argsToParamsOpt, bool expanded) 7541ImmutableArray<FlowAnalysisAnnotations> parameterAnnotationsOpt = default; 7567private VisitResult VisitArgumentEvaluate(BoundExpression argument, RefKind refKind, FlowAnalysisAnnotations annotations) 7579private VisitResult VisitArgumentEvaluateEpilogue(BoundExpression argument, RefKind refKind, FlowAnalysisAnnotations annotations) 7590switch (annotations & (FlowAnalysisAnnotations.DoesNotReturnIfTrue | FlowAnalysisAnnotations.DoesNotReturnIfFalse)) 7592case FlowAnalysisAnnotations.DoesNotReturnIfTrue: 7599case FlowAnalysisAnnotations.DoesNotReturnIfFalse: 7637FlowAnalysisAnnotations parameterAnnotations, 7719private bool CheckDisallowedNullAssignment(TypeWithState state, FlowAnalysisAnnotations annotations, SyntaxNode node, BoundExpression? boundValueOpt = null) 7737private static bool IsDisallowedNullAssignment(TypeWithState valueState, FlowAnalysisAnnotations targetAnnotations) 7739return ((targetAnnotations & FlowAnalysisAnnotations.DisallowNull) != 0) && 7774FlowAnalysisAnnotations parameterAnnotations, 7809var leftAnnotations = GetLValueAnnotations(argument); 7828var leftAnnotations = GetLValueAnnotations(argument); 7867FlowAnalysisAnnotations notNullBasedOnParameters(FlowAnalysisAnnotations parameterAnnotations, ArrayBuilder<ParameterSymbol>? notNullParametersOpt, ParameterSymbol parameter) 7878return FlowAnalysisAnnotations.NotNull; 7886void trackNullableStateForAssignment(BoundExpression parameterValue, TypeWithAnnotations lValueType, int targetSlot, TypeWithState parameterWithState, bool isSuppressed, FlowAnalysisAnnotations parameterAnnotations) 7911static bool hasConditionalPostCondition(FlowAnalysisAnnotations annotations) 7913return (((annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0) ^ ((annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0)) || 7914(((annotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0) ^ ((annotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0)); 7917static TypeWithState applyPostConditionsUnconditionally(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 7919if ((annotations & FlowAnalysisAnnotations.MaybeNull) != 0) 7925if ((annotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 7934static TypeWithState applyPostConditionsWhenTrue(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 7936bool notNullWhenTrue = (annotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0; 7937bool maybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 7938bool maybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 7953static TypeWithState applyPostConditionsWhenFalse(TypeWithState typeWithState, FlowAnalysisAnnotations annotations) 7955bool notNullWhenFalse = (annotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0; 7956bool maybeNullWhenTrue = (annotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 7957bool maybeNullWhenFalse = (annotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 7976private void LearnFromPostConditions(BoundExpression argument, FlowAnalysisAnnotations parameterAnnotations) 7979bool notNullWhenTrue = (parameterAnnotations & FlowAnalysisAnnotations.NotNullWhenTrue) != 0; 7980bool notNullWhenFalse = (parameterAnnotations & FlowAnalysisAnnotations.NotNullWhenFalse) != 0; 7983bool maybeNullWhenTrue = (parameterAnnotations & FlowAnalysisAnnotations.MaybeNullWhenTrue) != 0; 7984bool maybeNullWhenFalse = (parameterAnnotations & FlowAnalysisAnnotations.MaybeNullWhenFalse) != 0; 8069private (ParameterSymbol? Parameter, TypeWithAnnotations Type, FlowAnalysisAnnotations Annotations, bool isExpandedParamsArgument) GetCorrespondingParameter( 8097return (parameter, paramsIterationType, FlowAnalysisAnnotations.None, isExpandedParamsArgument: true); 9677var parameterAnnotations = GetParameterAnnotations(parameter); 10254FlowAnalysisAnnotations leftAnnotations; 10313var annotations = IsAnalyzingAttribute ? FlowAnalysisAnnotations.None : property.GetFlowAnalysisAnnotations(); 10344private FlowAnalysisAnnotations GetLValueAnnotations(BoundExpression expr) 10352return FlowAnalysisAnnotations.None; 10355var annotations = expr switch 10361=> ToInwardAnnotations(GetParameterAnnotations(parameter) & ~FlowAnalysisAnnotations.NotNull), // NotNull is enforced upon method exit 10362_ => FlowAnalysisAnnotations.None 10365return annotations & (FlowAnalysisAnnotations.DisallowNull | FlowAnalysisAnnotations.AllowNull); 10368private static FlowAnalysisAnnotations GetFieldAnnotations(FieldSymbol field) 10375private FlowAnalysisAnnotations GetObjectInitializerMemberLValueAnnotations(Symbol memberSymbol) 10381return FlowAnalysisAnnotations.None; 10384var annotations = memberSymbol switch { PropertySymbol prop => prop.GetFlowAnalysisAnnotations(), FieldSymbol field => GetFieldAnnotations(field), _ => FlowAnalysisAnnotations.None }; 10386return annotations & (FlowAnalysisAnnotations.DisallowNull | FlowAnalysisAnnotations.AllowNull); 10389private static FlowAnalysisAnnotations ToInwardAnnotations(FlowAnalysisAnnotations outwardAnnotations) 10391var annotations = FlowAnalysisAnnotations.None; 10392if ((outwardAnnotations & FlowAnalysisAnnotations.MaybeNull) != 0) 10395annotations |= FlowAnalysisAnnotations.AllowNull; 10397if ((outwardAnnotations & FlowAnalysisAnnotations.NotNull) == FlowAnalysisAnnotations.NotNull) 10400annotations |= FlowAnalysisAnnotations.DisallowNull; 10588var leftAnnotations = GetLValueAnnotations(variable.Expression); 10903var leftArgumentAnnotations = GetLValueAnnotations(node.Left); 11132var memberAnnotations = GetRValueAnnotations(member);

150public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

192public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => BaseMethod.ReturnTypeFlowAnalysisAnnotations; 196public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

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

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

173public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 177public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

70public abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

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

88internal 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); 778internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 782FlowAnalysisAnnotations value; 792private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(PEModule module, ParameterHandle handle) 794FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 795if (module.HasAttribute(handle, AttributeDescription.AllowNullAttribute)) annotations |= FlowAnalysisAnnotations.AllowNull; 796if (module.HasAttribute(handle, AttributeDescription.DisallowNullAttribute)) annotations |= FlowAnalysisAnnotations.DisallowNull; 800annotations |= FlowAnalysisAnnotations.MaybeNull; 804annotations |= (when ? FlowAnalysisAnnotations.MaybeNullWhenTrue : FlowAnalysisAnnotations.MaybeNullWhenFalse); 809annotations |= FlowAnalysisAnnotations.NotNull; 813annotations |= (when ? FlowAnalysisAnnotations.NotNullWhenTrue : FlowAnalysisAnnotations.NotNullWhenFalse); 818annotations |= (condition ? FlowAnalysisAnnotations.DoesNotReturnIfTrue : FlowAnalysisAnnotations.DoesNotReturnIfFalse);

249public abstract FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations { get; } 256public abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

407internal abstract FlowAnalysisAnnotations FlowAnalysisAnnotations { get; }

497public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => _reducedFrom.ReturnTypeFlowAnalysisAnnotations; 501public override FlowAnalysisAnnotations FlowAnalysisAnnotations => _reducedFrom.FlowAnalysisAnnotations;

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

91internal override FlowAnalysisAnnotations FlowAnalysisAnnotations { get { throw ExceptionUtilities.Unreachable(); } }

243public override FlowAnalysisAnnotations FlowAnalysisAnnotations 246private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(FieldWellKnownAttributeData attributeData) 248var annotations = FlowAnalysisAnnotations.None; 251if (attributeData.HasAllowNullAttribute) annotations |= FlowAnalysisAnnotations.AllowNull; 252if (attributeData.HasDisallowNullAttribute) annotations |= FlowAnalysisAnnotations.DisallowNull; 253if (attributeData.HasMaybeNullAttribute) annotations |= FlowAnalysisAnnotations.MaybeNull; 254if (attributeData.HasNotNullAttribute) annotations |= FlowAnalysisAnnotations.NotNull;

148internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 150get { return FlowAnalysisAnnotations.None; }

143internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 151private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(ParameterWellKnownAttributeData attributeData) 155return FlowAnalysisAnnotations.None; 157FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 158if (attributeData.HasAllowNullAttribute) annotations |= FlowAnalysisAnnotations.AllowNull; 159if (attributeData.HasDisallowNullAttribute) annotations |= FlowAnalysisAnnotations.DisallowNull; 163annotations |= FlowAnalysisAnnotations.MaybeNull; 169annotations |= (when ? FlowAnalysisAnnotations.MaybeNullWhenTrue : FlowAnalysisAnnotations.MaybeNullWhenFalse); 175annotations |= FlowAnalysisAnnotations.NotNull; 181annotations |= (when ? FlowAnalysisAnnotations.NotNullWhenTrue : FlowAnalysisAnnotations.NotNullWhenFalse); 187annotations |= (condition ? FlowAnalysisAnnotations.DoesNotReturnIfTrue : FlowAnalysisAnnotations.DoesNotReturnIfFalse);

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

109public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => 673public override FlowAnalysisAnnotations FlowAnalysisAnnotations 681private static FlowAnalysisAnnotations DecodeFlowAnalysisAttributes(MethodWellKnownAttributeData attributeData) 682=> attributeData?.HasDoesNotReturnAttribute == true ? FlowAnalysisAnnotations.DoesNotReturn : FlowAnalysisAnnotations.None; 1618private static FlowAnalysisAnnotations DecodeReturnTypeAnnotationAttributes(ReturnTypeWellKnownAttributeData attributeData) 1620FlowAnalysisAnnotations annotations = FlowAnalysisAnnotations.None; 1625annotations |= FlowAnalysisAnnotations.MaybeNull; 1629annotations |= FlowAnalysisAnnotations.NotNull;

354public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations 360return FlowAnalysisAnnotations.None; 363var result = FlowAnalysisAnnotations.None; 366result |= FlowAnalysisAnnotations.MaybeNull; 370result |= FlowAnalysisAnnotations.NotNull; 800var annotations = ReturnTypeFlowAnalysisAnnotations; 801if ((annotations & FlowAnalysisAnnotations.MaybeNull) != 0) 805if ((annotations & FlowAnalysisAnnotations.NotNull) != 0)

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

73internal sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations 75get { 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

33internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 37var result = FlowAnalysisAnnotations.None; 42result |= FlowAnalysisAnnotations.DisallowNull; 46result |= FlowAnalysisAnnotations.AllowNull; 86var annotations = FlowAnalysisAnnotations; 87if ((annotations & FlowAnalysisAnnotations.DisallowNull) != 0) 91if ((annotations & FlowAnalysisAnnotations.AllowNull) != 0)

133if (FlowAnalysisAnnotations != FlowAnalysisAnnotations.None)

167public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

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

89public override FlowAnalysisAnnotations FlowAnalysisAnnotations 90=> FlowAnalysisAnnotations.None;

120public sealed override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 214public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations 216get { return FlowAnalysisAnnotations.None; }

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

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

149public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

232public override FlowAnalysisAnnotations ReturnTypeFlowAnalysisAnnotations => FlowAnalysisAnnotations.None; 236public override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

84public sealed override FlowAnalysisAnnotations FlowAnalysisAnnotations => FlowAnalysisAnnotations.None;

120internal override FlowAnalysisAnnotations FlowAnalysisAnnotations 122get { return FlowAnalysisAnnotations.None; } 416internal 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;

144internal override FlowAnalysisAnnotations FlowAnalysisAnnotations