134return new Conversion( 197return new Conversion(this.Kind, conversionMethod, isExtensionMethod: IsExtensionMethod); 205return new Conversion( 263return new Conversion(kind); 266internal static Conversion UnsetConversion => new Conversion(ConversionKind.UnsetConversionKind); 267internal static Conversion NoConversion => new Conversion(ConversionKind.NoConversion); 268internal static Conversion Identity => new Conversion(ConversionKind.Identity); 269internal static Conversion ImplicitConstant => new Conversion(ConversionKind.ImplicitConstant); 270internal static Conversion ImplicitNumeric => new Conversion(ConversionKind.ImplicitNumeric); 271internal static Conversion ImplicitReference => new Conversion(ConversionKind.ImplicitReference); 272internal static Conversion ImplicitEnumeration => new Conversion(ConversionKind.ImplicitEnumeration); 273internal static Conversion ImplicitThrow => new Conversion(ConversionKind.ImplicitThrow); 274internal static Conversion ObjectCreation => new Conversion(ConversionKind.ObjectCreation); 275internal static Conversion CollectionExpression => new Conversion(ConversionKind.CollectionExpression); 276internal static Conversion AnonymousFunction => new Conversion(ConversionKind.AnonymousFunction); 277internal static Conversion Boxing => new Conversion(ConversionKind.Boxing); 278internal static Conversion NullLiteral => new Conversion(ConversionKind.NullLiteral); 279internal static Conversion DefaultLiteral => new Conversion(ConversionKind.DefaultLiteral); 280internal static Conversion NullToPointer => new Conversion(ConversionKind.ImplicitNullToPointer); 281internal static Conversion PointerToVoid => new Conversion(ConversionKind.ImplicitPointerToVoid); 282internal static Conversion PointerToPointer => new Conversion(ConversionKind.ExplicitPointerToPointer); 283internal static Conversion PointerToInteger => new Conversion(ConversionKind.ExplicitPointerToInteger); 284internal static Conversion IntegerToPointer => new Conversion(ConversionKind.ExplicitIntegerToPointer); 285internal static Conversion Unboxing => new Conversion(ConversionKind.Unboxing); 286internal static Conversion ExplicitReference => new Conversion(ConversionKind.ExplicitReference); 287internal static Conversion IntPtr => new Conversion(ConversionKind.IntPtr); 288internal static Conversion ExplicitEnumeration => new Conversion(ConversionKind.ExplicitEnumeration); 289internal static Conversion ExplicitNumeric => new Conversion(ConversionKind.ExplicitNumeric); 290internal static Conversion ImplicitDynamic => new Conversion(ConversionKind.ImplicitDynamic); 291internal static Conversion ExplicitDynamic => new Conversion(ConversionKind.ExplicitDynamic); 292internal static Conversion InterpolatedString => new Conversion(ConversionKind.InterpolatedString); 293internal static Conversion InterpolatedStringHandler => new Conversion(ConversionKind.InterpolatedStringHandler); 294internal static Conversion Deconstruction => new Conversion(ConversionKind.Deconstruction); 295internal static Conversion PinnedObjectToPointer => new Conversion(ConversionKind.PinnedObjectToPointer); 296internal static Conversion ImplicitPointer => new Conversion(ConversionKind.ImplicitPointer); 297internal static Conversion FunctionType => new Conversion(ConversionKind.FunctionType); 298internal static Conversion InlineArray => new Conversion(ConversionKind.InlineArray); 299internal static Conversion ImplicitSpan => new Conversion(ConversionKind.ImplicitSpan); 300internal static Conversion ExplicitSpan => new Conversion(ConversionKind.ExplicitSpan); 312internal static readonly Conversion ExplicitNullableWithExplicitEnumerationUnderlying = new Conversion(ConversionKind.ExplicitNullable, ExplicitEnumerationUnderlying); 313internal static readonly Conversion ExplicitNullableWithPointerToIntegerUnderlying = new Conversion(ConversionKind.ExplicitNullable, PointerToIntegerUnderlying); 314internal static readonly Conversion ExplicitNullableWithIdentityUnderlying = new Conversion(ConversionKind.ExplicitNullable, IdentityUnderlying); 315internal static readonly Conversion ExplicitNullableWithImplicitNumericUnderlying = new Conversion(ConversionKind.ExplicitNullable, ImplicitNumericUnderlying); 316internal static readonly Conversion ExplicitNullableWithExplicitNumericUnderlying = new Conversion(ConversionKind.ExplicitNullable, ExplicitNumericUnderlying); 317internal static readonly Conversion ExplicitNullableWithImplicitConstantUnderlying = new Conversion(ConversionKind.ExplicitNullable, ImplicitConstantUnderlying); 319internal static readonly Conversion ImplicitNullableWithExplicitEnumerationUnderlying = new Conversion(ConversionKind.ImplicitNullable, ExplicitEnumerationUnderlying); 320internal static readonly Conversion ImplicitNullableWithPointerToIntegerUnderlying = new Conversion(ConversionKind.ImplicitNullable, PointerToIntegerUnderlying); 321internal static readonly Conversion ImplicitNullableWithIdentityUnderlying = new Conversion(ConversionKind.ImplicitNullable, IdentityUnderlying); 322internal static readonly Conversion ImplicitNullableWithImplicitNumericUnderlying = new Conversion(ConversionKind.ImplicitNullable, ImplicitNumericUnderlying); 323internal static readonly Conversion ImplicitNullableWithExplicitNumericUnderlying = new Conversion(ConversionKind.ImplicitNullable, ExplicitNumericUnderlying); 324internal static readonly Conversion ImplicitNullableWithImplicitConstantUnderlying = new Conversion(ConversionKind.ImplicitNullable, ImplicitConstantUnderlying); 340return new Conversion(ConversionKind.StackAllocToPointerType, ImmutableArray.Create(underlyingConversion)); 345return new Conversion(ConversionKind.StackAllocToSpanType, ImmutableArray.Create(underlyingConversion)); 360_ => new Conversion(kind, ImmutableArray.Create(nestedConversion)), 366return new Conversion(ConversionKind.SwitchExpression, innerConversions); 371return new Conversion(ConversionKind.ConditionalExpression, innerConversions);

504return new Conversion(ConversionKind.MethodGroup, method, isExtensionMethod: isExtensionMethod);

785return new Conversion(conversionResult, isImplicit: true); 875return new Conversion(conversionResult, isImplicit: false); 1176return new Conversion(ConversionKind.ImplicitNullable, ImmutableArray.Create(underlyingConversion)); 1312return new Conversion(ConversionKind.ImplicitNullable, ImmutableArray.Create(underlyingTupleConversion)); 1341return new Conversion(ConversionKind.ExplicitNullable, ImmutableArray.Create(underlyingTupleConversion)); 1748return new Conversion(result, isImplicit: true); 2273return new Conversion(ConversionKind.ImplicitNullable, ImmutableArray.Create(tupleConversion)); 2470return new Conversion(ConversionKind.ExplicitNullable, ImmutableArray.Create(tupleConversion));

2111conversion = new Conversion(ConversionKind.AnonymousFunction, lambda.Symbol, false); 2232conversion = new Conversion(ConversionKind.MethodGroup, delegateCreation.MethodOpt, delegateCreation.IsExtensionMethod); 2238conversion = new Conversion(ConversionKind.AnonymousFunction, lambda.Symbol, delegateCreation.IsExtensionMethod); 2244conversion = new Conversion(ConversionKind.AnonymousFunction, lambda.Symbol, delegateCreation.IsExtensionMethod);

1134var result = new BoundConversion(syntax, rewrittenOperand, new Conversion(conversionKind, method, false), @checked, explicitCastInCode: explicitCastInCode, conversionGroup, constantValueOpt: null, rewrittenType); 1740var conversion = new Conversion(conversionKind, method, isExtensionMethod: false); 1785var resultConversion = new Conversion(result, conversion.IsImplicit); 1885return new Conversion(result, isImplicit);

527Conversion conversion = _typeSymbols.Compilation.ClassifyConversion(source, dest);

102var conversion = compilation.ClassifyConversion(symbols.IComponentType, type);

102var conversion = context.Compilation.ClassifyConversion(symbols.ParameterCaptureUnmatchedValuesRuntimeType, property.Type);

89var conversion = context.Compilation.ClassifyConversion(propertyContainingType, assignmentContainingType);

102var conversion = compilation.ClassifyConversion(symbols.IComponentType, type);

96var conversion = context.Compilation.ClassifyConversion(symbols.ParameterCaptureUnmatchedValuesRuntimeType, property.Type);

89var conversion = context.Compilation.ClassifyConversion(propertyContainingType, assignmentContainingType);

624internal void ReportDiagnosticsIfObsolete(BindingDiagnosticBag diagnostics, Conversion conversion, SyntaxNodeOrToken node, bool hasBaseReceiver)

4054if (conversion.Conversion == Conversion.ImplicitThrow)

416var conversion = this.Conversions.ClassifyImplicitConversionFromType(awaiterType, INotifyCompletion, ref useSiteInfo);

26var conversion = Conversions.ClassifyConversionFromExpression(source, destination, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 34Conversion conversion, 44Conversion conversion, 56Conversion conversion, 82static bool filterConversion(Conversion conversion) 98Conversion conversion, 300void reportUseSiteDiagnostics(SyntaxNode syntax, Conversion conversion, BoundExpression source, TypeSymbol destination, BindingDiagnosticBag diagnostics) 314void ensureAllUnderlyingConversionsChecked(SyntaxNode syntax, BoundExpression source, Conversion conversion, bool wasCompilerGenerated, TypeSymbol destination, BindingDiagnosticBag diagnostics) 407void checkConstraintLanguageVersionAndRuntimeSupportForConversion(SyntaxNode syntax, Conversion conversion, BoundExpression source, TypeSymbol destination, BindingDiagnosticBag diagnostics) 742SyntaxNode syntax, BoundUnconvertedObjectCreationExpression node, Conversion conversion, bool isCast, TypeSymbol destination, 764expr is BoundBadExpression ? Conversion.NoConversion : conversion, 810Conversion conversion, 952var elementConversion = elementConversions[i]; 986BoundNode bindSpreadElement(BoundCollectionExpressionSpreadElement element, TypeSymbol elementType, Conversion elementConversion, BindingDiagnosticBag diagnostics) 1047Conversion collectionBuilderReturnTypeConversion; 1542var conversion = conversions.ConvertExtensionMethodThisArg(constructed.Parameters[0].Type, receiverType, ref useSiteInfo, isMethodGroupConversion: false); 1820Conversion elementConversion = Conversions.GetCollectionExpressionSpreadElementConversion(spreadElement, elementType, ref useSiteInfo); 1830Conversion elementConversion = Conversions.ClassifyImplicitConversionFromExpression((BoundExpression)element, elementType, ref useSiteInfo); 1855out Conversion returnTypeConversion) 1912var conversion = Conversions.ClassifyImplicitConversionFromType(elementTypeOriginalDefinition, spanTypeArg, ref candidateUseSiteInfo); 1943Conversion? conversionIfTargetTyped, 1949var conversion = conversionIfTargetTyped.GetValueOrDefault(); 1950ImmutableArray<Conversion> underlyingConversions = conversion.UnderlyingConversions; 1983private BoundExpression ConvertSwitchExpression(BoundUnconvertedSwitchExpression source, TypeSymbol destination, Conversion? conversionIfTargetTyped, BindingDiagnosticBag diagnostics, bool hasErrors = false) 1986Conversion conversion = conversionIfTargetTyped ?? Conversion.Identity; 1988ImmutableArray<Conversion> underlyingConversions = conversion.UnderlyingConversions; 2013Conversion conversion, 2104Conversion toConversion = conversion.UserDefinedToConversion; 2181private BoundExpression CreateFunctionTypeConversion(SyntaxNode syntax, BoundExpression source, Conversion conversion, bool isCast, ConversionGroup? conversionGroup, TypeSymbol destination, BindingDiagnosticBag diagnostics) 2229private BoundExpression CreateAnonymousFunctionConversion(SyntaxNode syntax, BoundExpression source, Conversion conversion, bool isCast, ConversionGroup? conversionGroup, TypeSymbol destination, BindingDiagnosticBag diagnostics) 2256private BoundExpression CreateMethodGroupConversion(SyntaxNode syntax, BoundExpression source, Conversion conversion, bool isCast, ConversionGroup? conversionGroup, TypeSymbol destination, BindingDiagnosticBag diagnostics) 2414private BoundExpression CreateStackAllocConversion(SyntaxNode syntax, BoundExpression source, Conversion conversion, bool isCast, ConversionGroup? conversionGroup, TypeSymbol destination, BindingDiagnosticBag diagnostics) 2438var underlyingConversion = conversion.UnderlyingConversions.Single(); 2442private BoundExpression CreateTupleLiteralConversion(SyntaxNode syntax, BoundTupleLiteral sourceTuple, Conversion conversion, bool isCast, ConversionGroup? conversionGroup, TypeSymbol destination, BindingDiagnosticBag diagnostics) 2449var conversionWithoutNullable = conversion; 2504var elementConversion = underlyingConversions[i]; 2539Conversion.Identity, 2560private BoundMethodGroup FixMethodGroupWithTypeOrValue(BoundMethodGroup group, Conversion conversion, BindingDiagnosticBag diagnostics) 3011Conversion conversion, 3078out Conversion conversion) 3082conversion = Conversion.NoConversion; 3110Conversion conversion,

132new BoundConversion(boundRHS.Syntax, boundRHS, Conversion.Deconstruction, @checked: false, explicitCastInCode: false, conversionGroupOpt: null, 139Conversion conversion; 248out Conversion conversion) 252conversion = Conversion.Deconstruction; 300Conversion nestedConversion;

1229Conversion conversion = this.Conversions.ClassifyConversionFromExpression(argument, typedReferenceType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 1278Conversion conversion = this.Conversions.ClassifyConversionFromExpression(argument, typedReferenceType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 2629Conversion conversion = this.Conversions.ClassifyImplicitConversionFromExpression(boundOperand, intType, ref useSiteInfo); 2735Conversion conversion = this.Conversions.ClassifyImplicitConversionFromExpression(boundOperand, indexType, ref useSiteInfo); 2750Conversion conversion = this.Conversions.ClassifyConversionFromExpression(operand, targetType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo, forCast: true); 2767Conversion conversion, 2908var elementConversion = Conversions.ClassifyConversionFromExpression(argument, targetElementType, isChecked: CheckOverflowAtRuntime, ref discardedUseSiteInfo); 2934var underlyingConversion = Conversions.ClassifyBuiltInConversion(operand.Type, underlyingTargetTypeWithAnnotations.Type, isChecked: CheckOverflowAtRuntime, ref discardedUseSiteInfo); 3493var kind = result.ConversionForArg(arg); 3674var interpolatedStringConversion = memberAnalysisResult.ConversionForArg(interpolatedStringArgNum); 5300var conversion = @this.Conversions.ClassifyConversionFromExpression(expression, collectionType, isChecked: @this.CheckOverflowAtRuntime, ref useSiteInfo); 5392var conversion = this.Conversions.ClassifyConversionFromExpression(unboundLambda, type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 5432Conversion conversion; 5465Conversion conv = Conversions.MethodGroupConversion(argument.Syntax, methodGroup, type, ref useSiteInfo); 7003Conversion conversion = this.Conversions.ClassifyConversionFromExpression(classCreation, interfaceType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo, forCast: true); 9031Conversion.ImplicitNumeric, 9824Conversion failedConversion = this.Conversions.ClassifyConversionFromExpression(index, int32, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 9879Conversion conversion = this.Conversions.ClassifyImplicitConversionFromExpression(expr, targetType, ref useSiteInfo);

1738Conversion conversion = Conversions.ClassifyConversionFromExpression(defaultValue, parameterType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 1800Conversion conversion = Conversions.ClassifyImplicitConversionFromExpression(unconvertedCollection, collectionType, ref useSiteInfo);

69var finalDynamicConversion = this.Compilation.Conversions.ClassifyConversionFromExpression(placeholder, left.Type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 236Conversion rightToLeftConversion = this.Conversions.ClassifyConversionFromExpression(right, leftType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 415Conversion argumentConversion = this.Conversions.ClassifyConversionFromExpression(right, delegateType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 965var conversion = this.Conversions.ClassifyConversionFromExpression(right, left.Type, isChecked: CheckOverflowAtRuntime, ref discardedUseSiteInfo); 1162var conversion = this.Conversions.ClassifyConversionFromType(resultLeft.Type, trueFalseParameterType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 1232var implicitConversion = Conversions.ClassifyImplicitConversionFromExpression(left, booleanType, ref useSiteInfo); 1470var conversion = this.Conversions.ClassifyConversionFromType(argumentType, op.GetParameterType(0), isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 3747Conversion conv = Conversions.ClassifyConversionFromExpression(operand, targetType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 3769Conversion conversion = Conversions.ClassifyBuiltInConversion(operandType, targetType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 4226Conversion.NullLiteral, 4265Conversion conversion = Conversions.ClassifyBuiltInConversion(operandType, targetType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 4508var rightConversion = Conversions.ClassifyImplicitConversionFromExpression(rightOperand, optLeftType0, ref useSiteInfo); 4526var rightConversion = Conversions.ClassifyImplicitConversionFromExpression(rightOperand, optLeftType, ref useSiteInfo); 4563Conversion leftConversionClassification; 4643var underlyingRightConversion = Conversions.ClassifyImplicitConversionFromExpression(rightOperand, underlyingLeftType, ref useSiteInfo); 4657var rightConversion = Conversions.ClassifyImplicitConversionFromExpression(rightOperand, leftType, ref useSiteInfo);

424var convertedExpression = BindExpressionOrTypeForPattern(inputType, innerExpression, ref hasErrors, diagnostics, out var constantValueOpt, out bool wasExpression, out Conversion patternConversion); 453private bool ShouldBlockINumberBaseConversion(Conversion patternConversion, TypeSymbol inputType) 504out Conversion patternExpressionConversion) 517patternExpressionConversion = Conversion.NoConversion; 532out Conversion patternExpressionConversion) 538patternExpressionConversion = Conversion.NoConversion; 549out Conversion patternExpressionConversion) 594out Conversion patternExpressionConversion) 640patternExpressionConversion = Conversion.NoConversion; 647patternExpressionConversion = Conversion.NoConversion; 676patternExpressionConversion = Conversion.NoConversion; 766Conversions, inputType, patternType, ref useSiteInfo, out Conversion conversion, operandConstantValue: null, operandCouldBeNull: true); 807out Conversion conversion, 817conversion = Conversion.Identity; 1631BoundExpression value = BindExpressionForPattern(inputType, node.Expression, ref hasErrors, diagnostics, out var constantValueOpt, out _, out Conversion patternConversion);

1367Conversion elementConversionClassification = this.Conversions.ClassifyConversionFromType(pointerType, declType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 1935internal BoundExpression GenerateConversionForAssignment(TypeSymbol targetType, BoundExpression expression, BindingDiagnosticBag diagnostics, out Conversion conversion, ConversionForAssignmentFlags flags = ConversionForAssignmentFlags.None) 2248Conversion conversion, TypeSymbol sourceType, TypeSymbol targetType, ConstantValue sourceConstantValueOpt = null) 2318Conversion conversion, 2440var conversion = this.Conversions.ClassifyImplicitConversionFromExpression(expr, targetType, ref useSiteInfo); 2540var elementConversion = Conversions.ClassifyImplicitConversionFromExpression(argument, targetElementType, ref discardedUseSiteInfo); 2663return BoundConversion.Synthesized(node, BindToTypeForErrorRecovery(expr), Conversion.NoConversion, false, explicitCastInCode: false, conversionGroupOpt: null, ConstantValue.NotAvailable, boolean, hasErrors: true); 2688var conversion = this.Conversions.ClassifyConversionFromExpression(expr, boolean, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 2729return BoundConversion.Synthesized(node, expr, Conversion.NoConversion, false, explicitCastInCode: false, conversionGroupOpt: null, ConstantValue.NotAvailable, boolean, hasErrors: true); 3151Conversion conversion; 3160conversion = Conversion.NoConversion;

132Conversion conversion = this.Conversions.ClassifyImplicitConversionFromType(type, boolean, ref useSiteInfo);

460Conversion conversion = _conversions.ClassifyBuiltInConversion(inputType, type, isChecked: false, ref useSiteInfo); 1544ConstantValue result = Binder.ExpressionOfTypeMatchesPatternType(_conversions, expressionType, patternType, ref useSiteInfo, out Conversion conversion);

483Conversion elementConversionClassification = this.Conversions.ClassifyConversionFromType(inferredType.Type, iterationVariableType.Type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo, forCast: true); 537Conversion collectionConversionClassification = this.Conversions.ClassifyConversionFromExpression(collectionExpr, builder.CollectionType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 538Conversion currentConversionClassification = this.Conversions.ClassifyConversionFromType(builder.CurrentPropertyGetter.ReturnType, builder.ElementType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 637Conversion collectionConversionClassification, 1569var collectionConversion = this.Conversions.ClassifyConversionFromExpression(collectionExpr, result.Parameters[0].Type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo);

985private void VisitDeconstructionArguments(ArrayBuilder<DeconstructionVariable> variables, SyntaxNode syntax, Conversion conversion, BoundExpression right) 1049var underlyingConversion = BoundNode.GetConversion(placeholderConversion, placeholder);

19public readonly struct Conversion : IEquatable<Conversion>, IConvertibleConversion 83public NestedUncommonData(ImmutableArray<Conversion> nestedConversions) 88internal readonly ImmutableArray<Conversion> _nestedConversionsOpt; 112ImmutableArray<Conversion> elementConversions) : 129internal static Conversion CreateCollectionExpressionConversion( 132ImmutableArray<Conversion> elementConversions) 173internal Conversion(ConversionKind kind, ImmutableArray<Conversion> nestedConversions) 188internal Conversion SetConversionMethod(MethodSymbol conversionMethod) 200internal Conversion SetArrayIndexConversionForDynamic() 260internal static Conversion GetTrivialConversion(ConversionKind kind) 266internal static Conversion UnsetConversion => new Conversion(ConversionKind.UnsetConversionKind); 267internal static Conversion NoConversion => new Conversion(ConversionKind.NoConversion); 268internal static Conversion Identity => new Conversion(ConversionKind.Identity); 269internal static Conversion ImplicitConstant => new Conversion(ConversionKind.ImplicitConstant); 270internal static Conversion ImplicitNumeric => new Conversion(ConversionKind.ImplicitNumeric); 271internal static Conversion ImplicitReference => new Conversion(ConversionKind.ImplicitReference); 272internal static Conversion ImplicitEnumeration => new Conversion(ConversionKind.ImplicitEnumeration); 273internal static Conversion ImplicitThrow => new Conversion(ConversionKind.ImplicitThrow); 274internal static Conversion ObjectCreation => new Conversion(ConversionKind.ObjectCreation); 275internal static Conversion CollectionExpression => new Conversion(ConversionKind.CollectionExpression); 276internal static Conversion AnonymousFunction => new Conversion(ConversionKind.AnonymousFunction); 277internal static Conversion Boxing => new Conversion(ConversionKind.Boxing); 278internal static Conversion NullLiteral => new Conversion(ConversionKind.NullLiteral); 279internal static Conversion DefaultLiteral => new Conversion(ConversionKind.DefaultLiteral); 280internal static Conversion NullToPointer => new Conversion(ConversionKind.ImplicitNullToPointer); 281internal static Conversion PointerToVoid => new Conversion(ConversionKind.ImplicitPointerToVoid); 282internal static Conversion PointerToPointer => new Conversion(ConversionKind.ExplicitPointerToPointer); 283internal static Conversion PointerToInteger => new Conversion(ConversionKind.ExplicitPointerToInteger); 284internal static Conversion IntegerToPointer => new Conversion(ConversionKind.ExplicitIntegerToPointer); 285internal static Conversion Unboxing => new Conversion(ConversionKind.Unboxing); 286internal static Conversion ExplicitReference => new Conversion(ConversionKind.ExplicitReference); 287internal static Conversion IntPtr => new Conversion(ConversionKind.IntPtr); 288internal static Conversion ExplicitEnumeration => new Conversion(ConversionKind.ExplicitEnumeration); 289internal static Conversion ExplicitNumeric => new Conversion(ConversionKind.ExplicitNumeric); 290internal static Conversion ImplicitDynamic => new Conversion(ConversionKind.ImplicitDynamic); 291internal static Conversion ExplicitDynamic => new Conversion(ConversionKind.ExplicitDynamic); 292internal static Conversion InterpolatedString => new Conversion(ConversionKind.InterpolatedString); 293internal static Conversion InterpolatedStringHandler => new Conversion(ConversionKind.InterpolatedStringHandler); 294internal static Conversion Deconstruction => new Conversion(ConversionKind.Deconstruction); 295internal static Conversion PinnedObjectToPointer => new Conversion(ConversionKind.PinnedObjectToPointer); 296internal static Conversion ImplicitPointer => new Conversion(ConversionKind.ImplicitPointer); 297internal static Conversion FunctionType => new Conversion(ConversionKind.FunctionType); 298internal static Conversion InlineArray => new Conversion(ConversionKind.InlineArray); 299internal static Conversion ImplicitSpan => new Conversion(ConversionKind.ImplicitSpan); 300internal static Conversion ExplicitSpan => new Conversion(ConversionKind.ExplicitSpan); 304internal static ImmutableArray<Conversion> IdentityUnderlying => ConversionSingletons.IdentityUnderlying; 305internal static ImmutableArray<Conversion> ImplicitConstantUnderlying => ConversionSingletons.ImplicitConstantUnderlying; 306internal static ImmutableArray<Conversion> ImplicitNumericUnderlying => ConversionSingletons.ImplicitNumericUnderlying; 307internal static ImmutableArray<Conversion> ExplicitNumericUnderlying => ConversionSingletons.ExplicitNumericUnderlying; 308internal static ImmutableArray<Conversion> ExplicitEnumerationUnderlying => ConversionSingletons.ExplicitEnumerationUnderlying; 309internal static ImmutableArray<Conversion> PointerToIntegerUnderlying => ConversionSingletons.PointerToIntegerUnderlying; 312internal static readonly Conversion ExplicitNullableWithExplicitEnumerationUnderlying = new Conversion(ConversionKind.ExplicitNullable, ExplicitEnumerationUnderlying); 313internal static readonly Conversion ExplicitNullableWithPointerToIntegerUnderlying = new Conversion(ConversionKind.ExplicitNullable, PointerToIntegerUnderlying); 314internal static readonly Conversion ExplicitNullableWithIdentityUnderlying = new Conversion(ConversionKind.ExplicitNullable, IdentityUnderlying); 315internal static readonly Conversion ExplicitNullableWithImplicitNumericUnderlying = new Conversion(ConversionKind.ExplicitNullable, ImplicitNumericUnderlying); 316internal static readonly Conversion ExplicitNullableWithExplicitNumericUnderlying = new Conversion(ConversionKind.ExplicitNullable, ExplicitNumericUnderlying); 317internal static readonly Conversion ExplicitNullableWithImplicitConstantUnderlying = new Conversion(ConversionKind.ExplicitNullable, ImplicitConstantUnderlying); 319internal static readonly Conversion ImplicitNullableWithExplicitEnumerationUnderlying = new Conversion(ConversionKind.ImplicitNullable, ExplicitEnumerationUnderlying); 320internal static readonly Conversion ImplicitNullableWithPointerToIntegerUnderlying = new Conversion(ConversionKind.ImplicitNullable, PointerToIntegerUnderlying); 321internal static readonly Conversion ImplicitNullableWithIdentityUnderlying = new Conversion(ConversionKind.ImplicitNullable, IdentityUnderlying); 322internal static readonly Conversion ImplicitNullableWithImplicitNumericUnderlying = new Conversion(ConversionKind.ImplicitNullable, ImplicitNumericUnderlying); 323internal static readonly Conversion ImplicitNullableWithExplicitNumericUnderlying = new Conversion(ConversionKind.ImplicitNullable, ExplicitNumericUnderlying); 324internal static readonly Conversion ImplicitNullableWithImplicitConstantUnderlying = new Conversion(ConversionKind.ImplicitNullable, ImplicitConstantUnderlying); 330internal static ImmutableArray<Conversion> IdentityUnderlying = ImmutableArray.Create(Identity); 331internal static ImmutableArray<Conversion> ImplicitConstantUnderlying = ImmutableArray.Create(ImplicitConstant); 332internal static ImmutableArray<Conversion> ImplicitNumericUnderlying = ImmutableArray.Create(ImplicitNumeric); 333internal static ImmutableArray<Conversion> ExplicitNumericUnderlying = ImmutableArray.Create(ExplicitNumeric); 334internal static ImmutableArray<Conversion> ExplicitEnumerationUnderlying = ImmutableArray.Create(ExplicitEnumeration); 335internal static ImmutableArray<Conversion> PointerToIntegerUnderlying = ImmutableArray.Create(PointerToInteger); 338internal static Conversion MakeStackAllocToPointerType(Conversion underlyingConversion) 343internal static Conversion MakeStackAllocToSpanType(Conversion underlyingConversion) 348internal static Conversion MakeNullableConversion(ConversionKind kind, Conversion nestedConversion) 364internal static Conversion MakeSwitchExpression(ImmutableArray<Conversion> innerConversions) 369internal static Conversion MakeConditionalExpression(ImmutableArray<Conversion> innerConversions) 398internal ImmutableArray<Conversion> UnderlyingConversions 404default(ImmutableArray<Conversion>); 425foreach (var underlying in underlyingConversions) 464foreach (var underlying in underlyingConversions) 575foreach (var conv in nestedConversions) 1079internal Conversion UserDefinedFromConversion 1084return best == null ? Conversion.NoConversion : best.SourceConversion; 1091internal Conversion UserDefinedToConversion 1096return best == null ? Conversion.NoConversion : best.TargetConversion; 1147/// This is a lossy conversion; it is not possible to recover the original <see cref="Conversion"/> 1167/// Determines whether the specified <see cref="Conversion"/> object is equal to the current <see cref="Conversion"/> object. 1169/// <param name="obj">The <see cref="Conversion"/> object to compare with the current <see cref="Conversion"/> object.</param> 1170/// <returns>true if the specified <see cref="Conversion"/> object is equal to the current <see cref="Conversion"/> object; otherwise, false.</returns> 1173return obj is Conversion && this.Equals((Conversion)obj); 1177/// Determines whether the specified <see cref="Conversion"/> object is equal to the current <see cref="Conversion"/> object. 1179/// <param name="other">The <see cref="Conversion"/> object to compare with the current <see cref="Conversion"/> object.</param> 1180/// <returns>true if the specified <see cref="Conversion"/> object is equal to the current <see cref="Conversion"/> object; otherwise, false.</returns> 1181public bool Equals(Conversion other) 1187/// Returns a hash code for the current <see cref="Conversion"/> object. 1189/// <returns>A hash code for the current <see cref="Conversion"/> object.</returns> 1196/// Returns true if the specified <see cref="Conversion"/> objects are equal and false otherwise. 1198/// <param name="left">The first <see cref="Conversion"/> object.</param> 1199/// <param name="right">The second <see cref="Conversion"/> object.</param> 1201public static bool operator ==(Conversion left, Conversion right) 1207/// Returns false if the specified <see cref="Conversion"/> objects are equal and true otherwise. 1209/// <param name="left">The first <see cref="Conversion"/> object.</param> 1210/// <param name="right">The second <see cref="Conversion"/> object.</param> 1212public static bool operator !=(Conversion left, Conversion right) 1222TreeDumperNode Dump(Conversion self)

44public override Conversion GetMethodGroupDelegateConversion(BoundMethodGroup source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 49return Conversion.NoConversion; 55return Conversion.NoConversion; 107var conversion = (resolution.IsEmpty || resolution.HasAnyErrors) ? 108Conversion.NoConversion : 115public override Conversion GetMethodGroupFunctionPointerConversion(BoundMethodGroup source, FunctionPointerTypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 124var conversion = (resolution.IsEmpty || resolution.HasAnyErrors) ? 125Conversion.NoConversion : 131protected override Conversion GetInterpolatedStringConversion(BoundExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 137return Conversion.NoConversion; 142return Conversion.InterpolatedStringHandler; 147return Conversion.NoConversion; 155? Conversion.InterpolatedString : Conversion.NoConversion; 159protected override Conversion GetCollectionExpressionConversion( 170return Conversion.NoConversion; 179return Conversion.NoConversion; 195return Conversion.NoConversion; 201return Conversion.NoConversion; 205var builder = ArrayBuilder<Conversion>.GetInstance(elements.Length); 208Conversion elementConversion = convertElement(element, elementType, ref useSiteInfo); 212return Conversion.NoConversion; 218return Conversion.CreateCollectionExpressionConversion(collectionTypeKind, elementType, constructor, isExpanded, builder.ToImmutableAndFree()); 220Conversion convertElement(BoundNode element, TypeSymbol elementType, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 230internal Conversion GetCollectionExpressionSpreadElementConversion( 238return Conversion.NoConversion; 395public Conversion MethodGroupConversion(SyntaxNode syntax, MethodGroup methodGroup, NamedTypeSymbol delegateType, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 414var conversion = ToConversion(result, methodGroup, delegateType.DelegateInvokeMethod.ParameterCount); 446private static Conversion ToConversion(OverloadResolutionResult<MethodSymbol> result, MethodGroup methodGroup, int parameterCount) 466return Conversion.NoConversion; 475return Conversion.NoConversion; 482return Conversion.NoConversion; 487return Conversion.NoConversion; 507public override Conversion GetStackAllocConversion(BoundStackAllocArrayCreation sourceExpression, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 515var pointerConversion = ClassifyImplicitConversionFromType(sourceAsPointer, destination, ref useSiteInfo); 519return Conversion.MakeStackAllocToPointerType(pointerConversion); 527var spanConversion = ClassifyImplicitConversionFromType(spanType_T, destination, ref useSiteInfo); 531return Conversion.MakeStackAllocToSpanType(spanConversion); 537return Conversion.NoConversion;

67public abstract Conversion GetMethodGroupDelegateConversion(BoundMethodGroup source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo); 69public abstract Conversion GetMethodGroupFunctionPointerConversion(BoundMethodGroup source, FunctionPointerTypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo); 71public abstract Conversion GetStackAllocConversion(BoundStackAllocArrayCreation sourceExpression, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo); 75protected abstract Conversion GetInterpolatedStringConversion(BoundExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo); 78protected abstract Conversion GetCollectionExpressionConversion(BoundUnconvertedCollectionExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo); 98public Conversion ClassifyImplicitConversionFromExpression(BoundExpression sourceExpression, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 109return Conversion.Identity; 112Conversion conversion = ClassifyImplicitBuiltInConversionFromExpression(sourceExpression, sourceType, destination, ref useSiteInfo); 121Conversion fastConversion = FastClassifyConversion(sourceType, destination); 142return Conversion.FunctionType; 169public Conversion ClassifyImplicitConversionFromType(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 177return Conversion.Identity; 181Conversion fastConversion = FastClassifyConversion(source, destination); 184return fastConversion.IsImplicit ? fastConversion : Conversion.NoConversion; 188Conversion conversion = ClassifyImplicitBuiltInConversionSlow(source, destination, ref useSiteInfo); 204public Conversion ClassifyImplicitConversionFromTypeWhenNeitherOrBothFunctionTypes(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 217Conversion.FunctionType : 218Conversion.NoConversion; 222return Conversion.NoConversion; 234public Conversion ClassifyConversionFromExpressionType(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 242return Conversion.ImplicitDynamic; 248private static bool TryGetVoidConversion(TypeSymbol source, TypeSymbol destination, out Conversion conversion) 259conversion = Conversion.Identity; 266conversion = Conversion.NoConversion; 283public Conversion ClassifyConversionFromExpression(BoundExpression sourceExpression, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast = false) 289if (TryGetVoidConversion(sourceExpression.Type, destination, out var conversion)) 299var result = ClassifyImplicitConversionFromExpression(sourceExpression, destination, ref useSiteInfo); 317public Conversion ClassifyConversionFromType(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast = false) 322if (TryGetVoidConversion(source, destination, out var voidConversion)) 333Conversion fastConversion = FastClassifyConversion(source, destination); 340Conversion conversion1 = ClassifyImplicitBuiltInConversionSlow(source, destination, ref useSiteInfo); 347Conversion conversion = GetImplicitUserDefinedConversion(source, destination, ref useSiteInfo); 375private Conversion ClassifyConversionFromExpressionForCast(BoundExpression source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 381Conversion implicitConversion = ClassifyImplicitConversionFromExpression(source, destination, ref useSiteInfo); 387Conversion explicitConversion = ClassifyExplicitOnlyConversionFromExpression(source, destination, isChecked: isChecked, ref useSiteInfo, forCast: true); 429private Conversion ClassifyConversionFromTypeForCast(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 435Conversion fastConversion = FastClassifyConversion(source, destination); 441Conversion implicitBuiltInConversion = ClassifyImplicitBuiltInConversionSlow(source, destination, ref useSiteInfo); 447Conversion explicitBuiltInConversion = ClassifyExplicitBuiltInOnlyConversion(source, destination, isChecked: isChecked, ref useSiteInfo, forCast: true); 474var conversion = GetExplicitUserDefinedConversion(source, destination, isChecked: isChecked, ref useSiteInfo); 488public static Conversion FastClassifyConversion(TypeSymbol source, TypeSymbol target) 493return Conversion.GetTrivialConversion(convKind); 496return Conversion.MakeNullableConversion(convKind, FastClassifyConversion(source.StrippedType(), target.StrippedType())); 499public Conversion ClassifyBuiltInConversion(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 505Conversion fastConversion = FastClassifyConversion(source, destination); 512Conversion conversion = ClassifyImplicitBuiltInConversionSlow(source, destination, ref useSiteInfo); 529public Conversion ClassifyStandardConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 541public Conversion ClassifyStandardConversion(BoundExpression sourceExpression, TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 569Conversion conversion = ClassifyStandardImplicitConversion(sourceExpression, source, destination, ref useSiteInfo); 580return Conversion.NoConversion; 605private Conversion ClassifyStandardImplicitConversion(BoundExpression sourceExpression, TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 642Conversion conversion = ClassifyImplicitBuiltInConversionFromExpression(sourceExpression, source, destination, ref useSiteInfo); 656return Conversion.NoConversion; 658static bool isImplicitCollectionExpressionConversion(Conversion conversion) 695private Conversion ClassifyStandardImplicitConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 697var conversion = classifyConversion(source, destination, ref useSiteInfo); 701Conversion classifyConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 708return Conversion.Identity; 713return Conversion.ImplicitNumeric; 716var nullableConversion = ClassifyImplicitNullableConversion(source, destination, ref useSiteInfo); 725return Conversion.NoConversion; 730return Conversion.ImplicitReference; 735return Conversion.Boxing; 740return Conversion.PointerToVoid; 745return Conversion.ImplicitPointer; 748var tupleConversion = ClassifyImplicitTupleConversion(source, destination, ref useSiteInfo); 756return Conversion.ImplicitSpan; 759return Conversion.NoConversion; 763private Conversion ClassifyImplicitBuiltInConversionSlow(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 770return Conversion.NoConversion; 773Conversion conversion = ClassifyStandardImplicitConversion(source, destination, ref useSiteInfo); 779return Conversion.NoConversion; 782private Conversion GetImplicitUserDefinedConversion(BoundExpression sourceExpression, TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 788private Conversion GetImplicitUserDefinedConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 793private Conversion ClassifyExplicitBuiltInOnlyConversion(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 800return Conversion.NoConversion; 814return Conversion.IntPtr; 819return Conversion.ExplicitEnumeration; 822var nullableConversion = ClassifyExplicitNullableConversion(source, destination, isChecked: isChecked, ref useSiteInfo, forCast); 830return (source.Kind == SymbolKind.DynamicType) ? Conversion.ExplicitDynamic : Conversion.ExplicitReference; 835return Conversion.Unboxing; 838var tupleConversion = ClassifyExplicitTupleConversion(source, destination, isChecked: isChecked, ref useSiteInfo, forCast); 846return Conversion.PointerToPointer; 851return Conversion.PointerToInteger; 856return Conversion.IntegerToPointer; 861return Conversion.ExplicitDynamic; 866return Conversion.ExplicitSpan; 869return Conversion.NoConversion; 872private Conversion GetExplicitUserDefinedConversion(BoundExpression sourceExpression, TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 878private Conversion GetExplicitUserDefinedConversion(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 883private Conversion DeriveStandardExplicitFromOppositeStandardImplicitConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 885var oppositeConversion = ClassifyStandardImplicitConversion(destination, source, ref useSiteInfo); 886Conversion impliedExplicitConversion; 891impliedExplicitConversion = Conversion.Identity; 894impliedExplicitConversion = Conversion.ExplicitNumeric; 897impliedExplicitConversion = Conversion.ExplicitReference; 900impliedExplicitConversion = Conversion.Unboxing; 903impliedExplicitConversion = Conversion.NoConversion; 906impliedExplicitConversion = Conversion.PointerToPointer; 912impliedExplicitConversion = Conversion.NoConversion; 918var underlyingConversion = DeriveStandardExplicitFromOppositeStandardImplicitConversion(strippedSource, strippedDestination, ref useSiteInfo); 923Conversion.MakeNullableConversion(ConversionKind.ExplicitNullable, underlyingConversion) : 924Conversion.NoConversion; 929impliedExplicitConversion = Conversion.NoConversion; 1010private static bool ExplicitConversionMayDifferFromImplicit(Conversion implicitConversion) 1029private Conversion ClassifyImplicitBuiltInConversionFromExpression(BoundExpression sourceExpression, TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1038return Conversion.ImplicitDynamic; 1045return Conversion.NoConversion; 1050return Conversion.ImplicitEnumeration; 1053var constantConversion = ClassifyImplicitConstantExpressionConversion(sourceExpression, destination); 1062var nullLiteralConversion = ClassifyNullLiteralConversion(sourceExpression, destination); 1070return Conversion.DefaultLiteral; 1075var innerConversion = ClassifyImplicitBuiltInConversionFromExpression(innerExpression, innerExpression.Type, destination, ref useSiteInfo); 1083var tupleConversion = ClassifyImplicitTupleLiteralConversion((BoundTupleLiteral)sourceExpression, destination, ref useSiteInfo); 1093return Conversion.AnonymousFunction; 1098Conversion methodGroupConversion = GetMethodGroupDelegateConversion((BoundMethodGroup)sourceExpression, destination, ref useSiteInfo); 1107Conversion interpolatedStringConversion = GetInterpolatedStringConversion(sourceExpression, destination, ref useSiteInfo); 1114var stackAllocConversion = GetStackAllocConversion((BoundStackAllocArrayCreation)sourceExpression, destination, ref useSiteInfo); 1122var addressOfConversion = GetMethodGroupFunctionPointerConversion(((BoundUnconvertedAddressOfOperator)sourceExpression).Operand, funcPtrType, ref useSiteInfo); 1130return Conversion.ImplicitThrow; 1133return Conversion.ObjectCreation; 1136var collectionExpressionConversion = GetImplicitCollectionExpressionConversion((BoundUnconvertedCollectionExpression)sourceExpression, destination, ref useSiteInfo); 1152return Conversion.InlineArray; 1155return Conversion.NoConversion; 1159private Conversion GetImplicitCollectionExpressionConversion(BoundUnconvertedCollectionExpression collectionExpression, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1161var collectionExpressionConversion = GetCollectionExpressionConversion(collectionExpression, destination, ref useSiteInfo); 1173var underlyingConversion = GetCollectionExpressionConversion(collectionExpression, underlyingDestination, ref useSiteInfo); 1180return Conversion.NoConversion; 1184private Conversion GetSwitchExpressionConversion(BoundExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1192return Conversion.NoConversion; 1194var innerConversions = ArrayBuilder<Conversion>.GetInstance(switchExpression.SwitchArms.Length); 1197var nestedConversion = this.ClassifyImplicitConversionFromExpression(arm.Value, destination, ref useSiteInfo); 1201return Conversion.NoConversion; 1207return Conversion.MakeSwitchExpression(innerConversions.ToImmutableAndFree()); 1209return Conversion.NoConversion; 1213private Conversion GetConditionalExpressionConversion(BoundExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1218return Conversion.NoConversion; 1220var trueConversion = this.ClassifyImplicitConversionFromExpression(conditionalOperator.Consequence, destination, ref useSiteInfo); 1222return Conversion.NoConversion; 1224var falseConversion = this.ClassifyImplicitConversionFromExpression(conditionalOperator.Alternative, destination, ref useSiteInfo); 1226return Conversion.NoConversion; 1228return Conversion.MakeConditionalExpression(ImmutableArray.Create(trueConversion, falseConversion)); 1231private static Conversion ClassifyNullLiteralConversion(BoundExpression source, TypeSymbol destination) 1238return Conversion.NoConversion; 1246return Conversion.NullLiteral; 1256return Conversion.ImplicitReference; 1264return Conversion.NullToPointer; 1267return Conversion.NoConversion; 1270private static Conversion ClassifyImplicitConstantExpressionConversion(BoundExpression source, TypeSymbol destination) 1274return Conversion.ImplicitConstant; 1286return Conversion.ImplicitNullableWithImplicitConstantUnderlying; 1290return Conversion.NoConversion; 1293private Conversion ClassifyImplicitTupleLiteralConversion(BoundTupleLiteral source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1297var tupleConversion = GetImplicitTupleLiteralConversion(source, destination, ref useSiteInfo); 1309var underlyingTupleConversion = GetImplicitTupleLiteralConversion(source, underlyingDestination, ref useSiteInfo); 1316return Conversion.NoConversion; 1319private Conversion ClassifyExplicitTupleLiteralConversion(BoundTupleLiteral source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 1323var tupleConversion = GetExplicitTupleLiteralConversion(source, destination, isChecked: isChecked, ref useSiteInfo, forCast); 1337var underlyingTupleConversion = GetExplicitTupleLiteralConversion(source, underlyingDestination, isChecked: isChecked, ref useSiteInfo, forCast); 1346return Conversion.NoConversion; 1401private Conversion ClassifyExplicitOnlyConversionFromExpression(BoundExpression sourceExpression, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 1412Conversion tupleConversion = ClassifyExplicitTupleLiteralConversion((BoundTupleLiteral)sourceExpression, destination, isChecked: isChecked, ref useSiteInfo, forCast); 1423Conversion fastConversion = FastClassifyConversion(sourceType, destination); 1430var conversion = ClassifyExplicitBuiltInOnlyConversion(sourceType, destination, isChecked: isChecked, ref useSiteInfo, forCast); 1719internal Conversion ClassifyImplicitUserDefinedConversionForV6SwitchGoverningType(TypeSymbol sourceType, out TypeSymbol switchGoverningType, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1751internal Conversion GetCallerLineNumberConversion(TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 1764return Conversion.ImplicitEnumeration; 1767var constantConversion = ClassifyImplicitConstantExpressionConversion(intMaxValueLiteral, destination); 1784Conversion conversion = ClassifyStandardImplicitConversion(expectedAttributeType, destination, ref useSiteInfo); 1910public Conversion ConvertExtensionMethodThisArg(TypeSymbol parameterType, TypeSymbol thisType, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool isMethodGroupConversion) 1913var conversion = this.ClassifyImplicitExtensionMethodThisArgConversion(sourceExpressionOpt: null, thisType, parameterType, ref useSiteInfo, isMethodGroupConversion); 1914return IsValidExtensionMethodThisArgConversion(conversion) ? conversion : Conversion.NoConversion; 1920public Conversion ClassifyImplicitExtensionMethodThisArgConversion(BoundExpression sourceExpressionOpt, TypeSymbol sourceType, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool isMethodGroupConversion) 1930return Conversion.Identity; 1935return Conversion.Boxing; 1940return Conversion.ImplicitReference; 1945return Conversion.ImplicitSpan; 1954var tupleConversion = GetTupleLiteralConversion( 1971var tupleConversion = ClassifyTupleConversion( 1980return Conversion.NoConversion; 1992return Conversion.NoConversion; 2001public static bool IsValidExtensionMethodThisArgConversion(Conversion conversion) 2014foreach (var elementConversion in conversion.UnderlyingConversions) 2236private Conversion ClassifyImplicitNullableConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 2249return Conversion.NoConversion; 2257return Conversion.NoConversion; 2262return Conversion.ImplicitNullableWithIdentityUnderlying; 2267return Conversion.ImplicitNullableWithImplicitNumericUnderlying; 2270var tupleConversion = ClassifyImplicitTupleConversion(unwrappedSource, unwrappedDestination, ref useSiteInfo); 2276return Conversion.NoConversion; 2279private delegate Conversion ClassifyConversionFromExpressionDelegate(ConversionsBase conversions, BoundExpression sourceExpression, TypeWithAnnotations destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast); 2280private delegate Conversion ClassifyConversionFromTypeDelegate(ConversionsBase conversions, TypeWithAnnotations source, TypeWithAnnotations destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast); 2282private Conversion GetImplicitTupleLiteralConversion(BoundTupleLiteral source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 2300private Conversion GetExplicitTupleLiteralConversion(BoundTupleLiteral source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 2318private Conversion GetTupleLiteralConversion( 2334return Conversion.NoConversion; 2341var argumentConversions = ArrayBuilder<Conversion>.GetInstance(arguments.Length); 2345var result = classifyConversion(this, argument, targetElementTypes[i], isChecked: isChecked, ref useSiteInfo, forCast: forCast); 2349return Conversion.NoConversion; 2358private Conversion ClassifyImplicitTupleConversion(TypeSymbol source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 2369return Conversion.NoConversion; 2377private Conversion ClassifyExplicitTupleConversion(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 2388return Conversion.NoConversion; 2396private Conversion ClassifyTupleConversion( 2412return Conversion.NoConversion; 2415var nestedConversions = ArrayBuilder<Conversion>.GetInstance(sourceTypes.Length); 2418var conversion = classifyConversion(this, sourceTypes[i], destTypes[i], isChecked: isChecked, ref useSiteInfo, forCast); 2422return Conversion.NoConversion; 2431private Conversion ClassifyExplicitNullableConversion(TypeSymbol source, TypeSymbol destination, bool isChecked, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, bool forCast) 2446return Conversion.NoConversion; 2454return Conversion.ExplicitNullableWithIdentityUnderlying; 2459return Conversion.ExplicitNullableWithImplicitNumericUnderlying; 2464return Conversion.ExplicitNullableWithExplicitNumericUnderlying; 2467var tupleConversion = ClassifyExplicitTupleConversion(unwrappedSource, unwrappedDestination, isChecked: isChecked, ref useSiteInfo, forCast); 2475return Conversion.ExplicitNullableWithExplicitEnumerationUnderlying; 2480return Conversion.ExplicitNullableWithPointerToIntegerUnderlying; 2483return Conversion.NoConversion;

36public override Conversion GetMethodGroupDelegateConversion(BoundMethodGroup source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 42public override Conversion GetMethodGroupFunctionPointerConversion(BoundMethodGroup source, FunctionPointerTypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 48public override Conversion GetStackAllocConversion(BoundStackAllocArrayCreation sourceExpression, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 54protected override Conversion GetInterpolatedStringConversion(BoundExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 60protected override Conversion GetCollectionExpressionConversion(BoundUnconvertedCollectionExpression source, TypeSymbol destination, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo)

26public readonly Conversion SourceConversion; 27public readonly Conversion TargetConversion; 33Conversion sourceConversion, 34Conversion targetConversion, 51Conversion sourceConversion, 52Conversion targetConversion, 70Conversion sourceConversion, 71Conversion targetConversion,

273Conversion fromConversion = EncompassingExplicitConversion(sourceExpression, source, convertsFrom, ref useSiteInfo); 274Conversion toConversion = EncompassingExplicitConversion(convertsTo, target, ref useSiteInfo); 325Conversion liftedFromConversion = EncompassingExplicitConversion(sourceExpression, source, nullableFrom, ref useSiteInfo); 326Conversion liftedToConversion = EncompassingExplicitConversion(nullableTo, target, ref useSiteInfo); 479private Conversion EncompassingExplicitConversion(BoundExpression expr, TypeSymbol a, TypeSymbol b, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 498var result = ClassifyStandardConversion(expr, a, b, ref useSiteInfo); 499return result.IsEnumeration ? Conversion.NoConversion : result; 502private Conversion EncompassingExplicitConversion(TypeSymbol a, TypeSymbol b, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo)

302Conversion fromConversion = EncompassingImplicitConversion(sourceExpression, source, convertsFrom, ref useSiteInfo); 303Conversion toConversion = allowAnyTarget ? Conversion.Identity : 324toConversion = allowAnyTarget ? Conversion.Identity : 350Conversion liftedFromConversion = EncompassingImplicitConversion(sourceExpression, source, nullableFrom, ref useSiteInfo); 351Conversion liftedToConversion = !allowAnyTarget ? 353Conversion.Identity; 594private Conversion EncompassingImplicitConversion(BoundExpression aExpr, TypeSymbol a, TypeSymbol b, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 605var result = ClassifyStandardImplicitConversion(aExpr, a, b, ref useSiteInfo); 606return IsEncompassingImplicitConversionKind(result.Kind) ? result : Conversion.NoConversion; 609private Conversion EncompassingImplicitConversion(TypeSymbol a, TypeSymbol b, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo)

16public readonly Conversion LeftConversion; 17public readonly Conversion RightConversion; 21private BinaryOperatorAnalysisResult(OperatorAnalysisResultKind kind, BinaryOperatorSignature signature, Conversion leftConversion, Conversion rightConversion) 54public static BinaryOperatorAnalysisResult Applicable(BinaryOperatorSignature signature, Conversion leftConversion, Conversion rightConversion) 59public static BinaryOperatorAnalysisResult Inapplicable(BinaryOperatorSignature signature, Conversion leftConversion, Conversion rightConversion)

314Conversion leftConversion = Conversions.FastClassifyConversion(leftType, signature.LeftType); 315Conversion rightConversion = Conversions.FastClassifyConversion(rightType, signature.RightType);

728var convLeft = getOperandConversionForAllowByRefLikeNullCheck(isChecked, left, op.LeftType, ref useSiteInfo); 729var convRight = getOperandConversionForAllowByRefLikeNullCheck(isChecked, right, op.RightType, ref useSiteInfo); 777Conversion getOperandConversionForAllowByRefLikeNullCheck(bool isChecked, BoundExpression operand, TypeSymbol objectType, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo) 779return (operand.Type is TypeParameterSymbol { AllowsRefLikeType: true }) ? Conversion.Boxing : Conversions.ClassifyConversionFromExpression(operand, objectType, isChecked: isChecked, ref useSiteInfo); 800var convLeft = Conversions.ClassifyConversionFromExpression(left, op.LeftType, isChecked: isChecked, ref useSiteInfo); 801var convRight = Conversions.ClassifyConversionFromExpression(right, op.RightType, isChecked: isChecked, ref useSiteInfo);

14public readonly Conversion Conversion; 17private UnaryOperatorAnalysisResult(OperatorAnalysisResultKind kind, UnaryOperatorSignature signature, Conversion conversion) 37public static UnaryOperatorAnalysisResult Applicable(UnaryOperatorSignature signature, Conversion conversion) 42public static UnaryOperatorAnalysisResult Inapplicable(UnaryOperatorSignature signature, Conversion conversion)

114Conversion? conversion = Conversions.FastClassifyConversion(operandType, signature.OperandType);

277var conversion = Conversions.ClassifyConversionFromExpression(operand, op.OperandType, isChecked: isChecked, ref useSiteInfo);

26private readonly ImmutableArray<Conversion> _conversionsOpt; 27public ImmutableArray<Conversion> ConversionsOpt 123ImmutableArray<Conversion> conversionsOpt = default, 154public Conversion ConversionForArg(int arg) 158return Conversion.Identity; 323public static MemberAnalysisResult BadArgumentConversions(ImmutableArray<int> argsToParamsOpt, BitVector badArguments, ImmutableArray<Conversion> conversions, TypeWithAnnotations definitionParamsElementTypeOpt, TypeWithAnnotations paramsElementTypeOpt) 378public static MemberAnalysisResult NormalForm(ImmutableArray<int> argsToParamsOpt, ImmutableArray<Conversion> conversions, bool hasAnyRefOmittedArgument) 383public static MemberAnalysisResult ExpandedForm(ImmutableArray<int> argsToParamsOpt, ImmutableArray<Conversion> conversions, bool hasAnyRefOmittedArgument, TypeWithAnnotations definitionParamsElementType, TypeWithAnnotations paramsElementType) 461static ImmutableArray<Conversion> adjustConversions(ImmutableArray<Conversion> conversions)

2656var c1 = m1.Result.ConversionForArg(i); 2657var c2 = m2.Result.ConversionForArg(i); 2870Conversion conv1, 2873Conversion conv2, 2923private BetterResult BetterConversionFromExpression(BoundExpression node, TypeSymbol t1, Conversion conv1, TypeSymbol t2, Conversion conv2, ref CompoundUseSiteInfo<AssemblySymbol> useSiteInfo, out bool okToDowngradeToNeither) 3032TypeSymbol t1, Conversion conv1, 3033TypeSymbol t2, Conversion conv2, 3066TypeSymbol t1, CollectionExpressionTypeKind kind1, TypeSymbol elementType1, ImmutableArray<Conversion> underlyingElementConversions1, 3067TypeSymbol t2, CollectionExpressionTypeKind kind2, TypeSymbol elementType2, ImmutableArray<Conversion> underlyingElementConversions2, 3118var conversionToE1 = underlyingElementConversions1[i]; 3119var conversionToE2 = underlyingElementConversions2[i]; 3446return BetterConversionTargetCore(null, type1, default(Conversion), type2, default(Conversion), ref useSiteInfo, out okToDowngradeToNeither, betterConversionTargetRecursionLimit - 1); 3452Conversion conv1, 3454Conversion conv2, 3464Conversion conv1, 3466Conversion conv2, 3656private bool IsMethodGroupConversionIncompatibleWithDelegate(BoundMethodGroup node, NamedTypeSymbol delegateType, Conversion conv) 3749currentResult == BetterConversionTargetCore(null, type1, default(Conversion), type2, default(Conversion), ref useSiteInfo, out _, BetterConversionTargetRecursionLimit)); 4530ArrayBuilder<Conversion> conversions = null; 4535Conversion conversion; 4542conversion = Conversion.Identity; 4552conversion = Conversion.NoConversion; 4637conversions = ArrayBuilder<Conversion>.GetInstance(paramCount); 4638conversions.AddMany(Conversion.Identity, argumentPosition); 4649var conversionsArray = conversions != null ? conversions.ToImmutableAndFree() : default(ImmutableArray<Conversion>); 4671private Conversion CheckArgumentForApplicability( 4693return Conversion.NoConversion; 4705return Conversion.ImplicitDynamic; 4716return Conversion.Identity; 4721var conversion = forExtensionMethodThisArg ? 4725Conversion.ImplicitDynamic); 4732return Conversion.NoConversion; 4740return Conversion.Identity; 4744return Conversion.NoConversion;

257Conversion conversion = Conversions.ClassifyConversionFromExpression(caseExpression, SwitchGoverningType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 412Conversion conversion = binder.Conversions.ClassifyImplicitUserDefinedConversionForV6SwitchGoverningType(switchGoverningType, out resultantGoverningType, ref useSiteInfo);

240public static Conversion GetConversion(this BoundExpression boundNode) 249return Conversion.Identity;

443public static Conversion GetConversion(BoundExpression? conversion, BoundValuePlaceholder? placeholder) 448return Conversion.NoConversion; 477return Conversion.Identity;

328public static BoundConversion SynthesizedNonUserDefined(SyntaxNode syntax, BoundExpression operand, Conversion conversion, TypeSymbol type, ConstantValue? constantValueOpt = null) 351Conversion conversion, 377Conversion conversion,

18internal ConversionGroup(Conversion conversion, TypeWithAnnotations explicitType = default) 33internal readonly Conversion Conversion;

933var leftConversion = Conversions.ClassifyConversionFromType(leftType, rightType, isChecked: false, ref useSiteInfo); 939var rightConversion = Conversions.ClassifyConversionFromType(rightType, leftType, isChecked: false, ref useSiteInfo);

2313/// <returns>A <see cref="Conversion"/> that classifies the conversion from the 2315public Conversion ClassifyConversion(ITypeSymbol source, ITypeSymbol destination) 2361return Conversion.NoConversion; 2372return Conversion.NullLiteral; 2375return Conversion.NoConversion; 2378Conversion result = ClassifyConversion(sourceType, destination);

968return new CSharpTypeInfo(declarationTypeSymbol, declarationTypeSymbol, nullabilityInfo, nullabilityInfo, Conversion.Identity); 972return new CSharpTypeInfo(declarationInfo.Type, declarationInfo.Type, declarationInfo.Nullability, declarationInfo.Nullability, Conversion.Identity); 1010public Conversion GetConversion(SyntaxNode expression, CancellationToken cancellationToken = default(CancellationToken)) 1071public Conversion GetSpeculativeConversion(int position, ExpressionSyntax expression, SpeculativeBindingOption bindingOption) 2041return new CSharpTypeInfo(member.Type, member.Type, nullability: default, convertedNullability: default, Conversion.Identity); 2098Conversion conversion; 2147conversion = convertedSwitchConversion.IsValid ? convertedSwitchConversion : Conversion.NoConversion; 2154conversion = Conversion.Identity; 2165conversion = Conversion.MakeConditionalExpression(ImmutableArray<Conversion>.Empty); 2172conversion = Conversion.Identity; 2195conversion = Conversion.Identity; 2203conversion = Conversion.Identity; 2248conversion = Conversion.Identity; 2267conversion = Conversion.Identity; 2365return new CSharpTypeInfo(type, type, default, default, Conversion.Identity); 2818public abstract Conversion ClassifyConversion(ExpressionSyntax expression, ITypeSymbol destination, bool isExplicitInSource = false); 2836public Conversion ClassifyConversion(int position, ExpressionSyntax expression, ITypeSymbol destination, bool isExplicitInSource = false) 2848return Conversion.NoConversion; 2874return Conversion.NoConversion; 2889internal abstract Conversion ClassifyConversionForCast(ExpressionSyntax expression, TypeSymbol destination); 2905internal Conversion ClassifyConversionForCast(int position, ExpressionSyntax expression, TypeSymbol destination) 2926return Conversion.NoConversion;

29private readonly Conversion _conversion; 47public Conversion? Conversion 53: (Conversion?)_conversion; 77internal DeconstructionInfo(Conversion conversion)

55public Conversion ElementConversion { get; } 60public Conversion CurrentConversion { get; } 71Conversion elementConversion, 72Conversion currentConversion)

429public override Conversion ClassifyConversion( 444return Conversion.NoConversion; 478return Conversion.NoConversion; 486internal override Conversion ClassifyConversionForCast( 502return Conversion.NoConversion;

220public override Conversion ClassifyConversion( 228internal override Conversion ClassifyConversionForCast(

520public override Conversion ClassifyConversion(ExpressionSyntax expression, ITypeSymbol destination, bool isExplicitInSource = false) 527return Conversion.NoConversion; 552return Conversion.NoConversion; 558internal override Conversion ClassifyConversionForCast(ExpressionSyntax expression, TypeSymbol destination) 573return Conversion.NoConversion;

15internal static readonly CSharpTypeInfo None = new CSharpTypeInfo(type: null, convertedType: null, nullability: default, convertedNullability: default, Conversion.Identity); 39public readonly Conversion ImplicitConversion; 41internal CSharpTypeInfo(TypeSymbol type, TypeSymbol convertedType, NullabilityInfo nullability, NullabilityInfo convertedNullability, Conversion implicitConversion)

273Conversion.ImplicitReference);

128Conversion.ExplicitReference, 157Conversion.ExplicitReference, 403conversion: Conversion.ExplicitReference, 468conversion: Conversion.ExplicitReference,

102Conversion.ImplicitNumeric), 191Conversion.ImplicitNumeric),

438public static Conversion ClassifyConversion(this Compilation? compilation, ITypeSymbol source, ITypeSymbol destination) 447return Conversion.NoConversion; 764public static Conversion GetConversion(this SemanticModel? semanticModel, SyntaxNode expression, CancellationToken cancellationToken = default(CancellationToken)) 773return Conversion.NoConversion; 778/// Gets the underlying <see cref="Conversion"/> information from this <see cref="IConversionOperation"/>. This 782/// <returns>The underlying <see cref="Conversion"/>.</returns> 784public static Conversion GetConversion(this IConversionOperation conversionExpression) 793return (Conversion)((ConversionOperation)conversionExpression).ConversionConvertible; 804/// Gets the underlying <see cref="Conversion"/> information from this <see cref="ICompoundAssignmentOperation"/>. This 810public static Conversion GetInConversion(this ICompoundAssignmentOperation compoundAssignment) 819return (Conversion)((CompoundAssignmentOperation)compoundAssignment).InConversionConvertible; 830/// Gets the underlying <see cref="Conversion"/> information from this <see cref="ICompoundAssignmentOperation"/>. This 836public static Conversion GetOutConversion(this ICompoundAssignmentOperation compoundAssignment) 845return (Conversion)((CompoundAssignmentOperation)compoundAssignment).OutConversionConvertible; 856/// Gets the underlying element <see cref="Conversion"/> information from this <see cref="ISpreadOperation"/>. 861public static Conversion GetElementConversion(this ISpreadOperation spread) 870return (Conversion)((SpreadOperation)spread).ElementConversionConvertible; 878public static Conversion GetSpeculativeConversion(this SemanticModel? semanticModel, int position, ExpressionSyntax expression, SpeculativeBindingOption bindingOption) 887return Conversion.NoConversion; 1306public static Conversion ClassifyConversion(this SemanticModel? semanticModel, ExpressionSyntax expression, ITypeSymbol destination, bool isExplicitInSource = false) 1317return Conversion.NoConversion; 1326public static Conversion ClassifyConversion(this SemanticModel? semanticModel, int position, ExpressionSyntax expression, ITypeSymbol destination, bool isExplicitInSource = false) 1335return Conversion.NoConversion;

2987BoundConversion { Conversion: Conversion conversion, Operand: BoundConditionalAccess ca } when CanPropagateStateWhenNotNull(conversion) => ca, 3009protected static bool CanPropagateStateWhenNotNull(Conversion conversion)

253/// The delegate is invoked by <see cref="VisitConversion(BoundConversion, BoundExpression, Conversion, TypeWithAnnotations, TypeWithState, bool, bool, bool, AssignmentKind, ParameterSymbol, bool, bool, bool, bool, Optional&lt;LocalState&gt;,bool, Location, ArrayBuilder&lt;VisitResult&gt;)"/>. 2838var conversion = conversionsWithoutNullability.ClassifyImplicitConversionFromType(actualType, targetType, ref discardedUseSiteInfo); 3918Conversion.Identity, // as only a nullable reinference is being done we expect an identity conversion 4809var conversions = ArrayBuilder<Conversion>.GetInstance(n); 4815(BoundExpression expressionNoConversion, Conversion conversion) = RemoveConversion(expression, includeExplicitConversions: false); 4858_ = VisitConversion(conversionOpt: null, conversionOperand: expressionsNoConversions[i], Conversion.Identity, targetTypeWithNullability: inferredType, operandType: expressionTypes[i], 4960Conversion conversion = conversionsWithoutNullability.ClassifyConversionFromExpression(placeholder, bestType, isChecked: returns[i].isChecked, ref discardedUseSiteInfo); 5155leftConversion = Conversion.Identity; 5175leftConversion = Conversion.Identity; 5277Conversion leftConversion, 5280Conversion rightConversion, 5295Conversion leftConversion, 5299Conversion rightConversion, 5333Conversion conversion, 5379var conversion = _conversions.ClassifyBuiltInConversion(derivedType, baseType, isChecked: false, ref discardedUseSiteInfo); 5388private void VisitBinaryOperatorOperandConversionAndPostConditions(BoundExpression expr, BoundExpression operand, Conversion conversion, ParameterSymbol parameter, TypeWithState operandType, bool isLifted) 5420Conversion leftConversion, 5864var conversion = GenerateConversionForConditionalOperator(node.LeftOperand, leftType, rightType, reportMismatch: true, isChecked: node.Checked); 6138(var consequence, var consequenceConversion, consequenceRValue) = visitConditionalOperand(consequenceState, originalConsequence); 6143(var alternative, var alternativeConversion, alternativeRValue) = visitConditionalOperand(alternativeState, originalAlternative); 6218TypeWithState consequenceRValue, TypeWithState alternativeRValue, BoundExpression consequence, Conversion consequenceConversion, bool consequenceEndReachable, 6219BoundExpression alternative, Conversion alternativeConversion, bool alternativeEndReachable, TypeWithAnnotations resultTypeWithAnnotations, bool wasTargetTyped) 6269Conversion consequenceConversion, 6272Conversion alternativeConversion, 6285(BoundExpression, Conversion, TypeWithState) visitConditionalOperand(LocalState state, BoundExpression operand) 6287Conversion conversion; 6318Conversion conversion, 7120(ImmutableArray<BoundExpression> argumentsNoConversions, ImmutableArray<Conversion> conversions) = RemoveArgumentConversions(arguments, refKindsOpt); 7135ImmutableArray<Conversion> conversions, 7237conversions.IsDefault || i >= conversions.Length ? Conversion.Identity : conversions[i], 7325ImmutableArray<Conversion> conversions, 7706Conversion conversion, 8095private (ImmutableArray<BoundExpression> arguments, ImmutableArray<Conversion> conversions) RemoveArgumentConversions( 8100var conversions = default(ImmutableArray<Conversion>); 8104var conversionsBuilder = ArrayBuilder<Conversion>.GetInstance(n); 8110var conversion = Conversion.Identity; 8440private static (BoundExpression expression, Conversion conversion) RemoveConversion(BoundExpression expr, bool includeExplicitConversions) 8459return (expr, Conversion.Identity); 8474return (expr, group?.Conversion ?? Conversion.Identity); 8478private Conversion GenerateConversionForConditionalOperator(BoundExpression sourceExpression, TypeSymbol? sourceType, TypeSymbol destinationType, bool reportMismatch, bool isChecked) 8480var conversion = GenerateConversion(_conversions, sourceExpression, sourceType, destinationType, fromExplicitCast: false, extensionMethodThisArgument: false, isChecked: isChecked); 8489private Conversion GenerateConversion(Conversions conversions, BoundExpression? sourceExpression, TypeSymbol? sourceType, TypeSymbol destinationType, bool fromExplicitCast, bool extensionMethodThisArgument, bool isChecked) 8672(BoundExpression operand, Conversion conversion) = RemoveConversion(node, includeExplicitConversions: true); 8727(BoundExpression operand, Conversion conversion) = RemoveConversion(expr, includeExplicitConversions: false); 8738Conversion conversion, TypeWithState operandType, 8770Func<TypeWithAnnotations, TypeWithState> visitConversionAsContinuation(BoundExpression expr, bool useLegacyWarnings, bool trackMembers, AssignmentKind assignmentKind, BoundExpression operand, Conversion conversion, TypeWithState operandType) 8923Conversion conversion, 8951void trackConvertedValue(FieldSymbol targetField, Conversion conversion, FieldSymbol valueField) 9177Conversion conversion, 9209conversion = Conversion.MakeNullableConversion(ConversionKind.ImplicitNullable, Conversion.Identity); 9729Conversion conversion, 9961var conversion = _conversions.ClassifyStandardConversion(operandType.Type, targetType.Type, ref discardedUseSiteInfo); 10245CheckExtensionMethodThisNullability(receiverOpt, Conversion.Identity, receiverParameter, receiverType); 10557private void VisitDeconstructionArguments(ArrayBuilder<DeconstructionVariable> variables, Conversion conversion, BoundExpression right, TypeWithState? rightResultOpt = null) 10571private void VisitDeconstructMethodArguments(ArrayBuilder<DeconstructionVariable> variables, Conversion conversion, BoundExpression right, TypeWithState? rightResultOpt) 10630var argConversion = RemoveConversion(invocation.Arguments[0], includeExplicitConversions: false).conversion; 10641var underlyingConversion = BoundNode.GetConversion(placeholderConversion, placeholder); 10682var underlyingConversion = BoundNode.GetConversion(placeholderConversion, placeholder); 11351Conversion conversion, 11614Conversion conversion = BoundNode.GetConversion(node.ElementConversion, node.ElementPlaceholder); 12326private void CheckExtensionMethodThisNullability(BoundExpression expr, Conversion conversion, ParameterSymbol parameter, TypeWithState result)

913var conversions = ArrayBuilder<Conversion>.GetInstance(numSwitchArms); 931(BoundExpression expression, Conversion conversion) = RemoveConversion(arm.Value, includeExplicitConversions: false); 988ArrayBuilder<Conversion> conversions, 1033ArrayBuilder<Conversion> conversions,

2937public BoundConversion(SyntaxNode syntax, BoundExpression operand, Conversion conversion, bool isBaseConversion, bool @checked, bool explicitCastInCode, ConstantValue? constantValueOpt, ConversionGroup? conversionGroupOpt, TypeSymbol type, bool hasErrors = false) 2955public Conversion Conversion { get; } 2965public BoundConversion Update(BoundExpression operand, Conversion conversion, bool isBaseConversion, bool @checked, bool explicitCastInCode, ConstantValue? constantValueOpt, ConversionGroup? conversionGroupOpt, TypeSymbol type)

586F.Convert(notifyCompletionTemp.Type, F.Local(awaiterTemp), Conversion.ExplicitReference)),

155var conversion = node.Conversion;

889private BoundExpression MakeConversionLambda(Conversion conversion, TypeSymbol fromType, TypeSymbol toType)

211void visitConversion(Conversion conversion) 225foreach (var underlying in conversion.UnderlyingConversions)

215Conversion conversion = _factory.Compilation.Conversions.ClassifyBuiltInConversion(inputType, output.Type, isChecked: false, ref useSiteInfo); 488_factory.Compilation.Conversions.ClassifyBuiltInConversion(test.Input.Type, typeEvaluation2.Type, isChecked: false, ref useSiteInfo) is Conversion conv &&

49var conversion = BoundNode.GetConversion(operandConversion, operandPlaceholder);

745var conversion = _compilation.Conversions.ClassifyConversionFromExpression(loweredLeft, boolean, isChecked: false, ref useSiteInfo); 2051MakeConversionNode(syntax, call, Conversion.ExplicitReference, type, @checked: false) : 2122rewrittenExpr = MakeConversionNode(syntax, rewrittenExpr, Conversion.Boxing, objectType, @checked: false); 2388: _factory.Convert(_factory.SpecialType(destinationType), numericOperand, Conversion.IntegerToPointer); 2405numericOperand = _factory.Convert(nativeIntType, numericOperand, Conversion.IntegerToPointer, isChecked); 2417numericOperand = _factory.Convert(longType, numericOperand, Conversion.ExplicitNumeric, isChecked); 2418sizeOfExpression = _factory.Convert(longType, sizeOfExpression, Conversion.ExplicitNumeric, isChecked); 2430sizeOfExpression = _factory.Convert(longType, sizeOfExpression, Conversion.ExplicitNumeric, isChecked); 2442sizeOfExpression = _factory.Convert(ulongType, sizeOfExpression, Conversion.ExplicitNumeric, isChecked); 2461: _factory.Convert(convertedMultiplicationResultType, multiplication, Conversion.IntegerToPointer); // NOTE: for some reason, dev10 doesn't check this conversion. 2491Conversion.PointerToInteger);

31private BoundExpression RewriteCollectionExpressionConversion(Conversion conversion, BoundCollectionExpression node) 197Conversion conversion;

828Conversion.Boxing,

264Conversion conversion, 283Conversion.Identity, 299Conversion conversion, 420conversion = Conversion.ExplicitNumeric; 471var outerConversion = Conversion.ImplicitNullableWithIdentityUnderlying; 791Conversion conversion = MakeConversion(rewrittenOperand, rewrittenType, @checked: @checked, _compilation, _diagnostics, acceptFailingConversion); 807private static Conversion MakeConversion( 817Conversion conversion = compilation.Conversions.ClassifyConversionFromType(rewrittenOperand.Type, rewrittenType, isChecked: @checked, ref useSiteInfo); 841Conversion conversion, 951Conversion conversion, 1038Conversion conversion, 1094Conversion conversion, 1121rewrittenOperand = BoundConversion.SynthesizedNonUserDefined(syntax, rewrittenOperand, Conversion.ImplicitEnumeration, rewrittenOperandType); 1146Conversion conversion, 1208Conversion conversion, 1240Conversion conversion, 1280Conversion conversion, 1342Conversion conversion, 1396Conversion conversion, 1403Conversion conv = TryMakeConversion(syntax, conversion, rewrittenOperand.Type, rewrittenType, @checked: @checked); 1484Conversion conversion, 1740var conversion = new Conversion(conversionKind, method, isExtensionMethod: false); 1754private Conversion TryMakeConversion(SyntaxNode syntax, Conversion conversion, TypeSymbol fromType, TypeSymbol toType, bool @checked) 1764Conversion fromConversion = TryMakeConversion(syntax, conversion.UserDefinedFromConversion, fromType, meth.Parameters[0].Type, @checked: @checked); 1767return Conversion.NoConversion; 1770Conversion toConversion = TryMakeConversion(syntax, conversion.UserDefinedToConversion, meth.ReturnType, toType, @checked: @checked); 1773return Conversion.NoConversion; 1785var resultConversion = new Conversion(result, conversion.IsImplicit); 1797return Conversion.NoConversion; 1811return Conversion.NoConversion; 1828return Conversion.NoConversion; 1841return Conversion.NoConversion; 1855private Conversion TryMakeConversion(SyntaxNode syntax, TypeSymbol fromType, TypeSymbol toType, bool @checked) 1858var result = TryMakeConversion(syntax, _compilation.Conversions.ClassifyConversionFromType(fromType, toType, isChecked: @checked, ref useSiteInfo), fromType, toType, @checked: @checked); 1866private Conversion TryMakeUserDefinedConversion(SyntaxNode syntax, MethodSymbol meth, TypeSymbol fromType, TypeSymbol toType, bool @checked, bool isImplicit) 1870Conversion fromConversion = TryMakeConversion(syntax, fromType, meth.Parameters[0].Type, @checked: @checked); 1873return Conversion.NoConversion; 1876Conversion toConversion = TryMakeConversion(syntax, meth.ReturnType, toType, @checked: @checked); 1879return Conversion.NoConversion;

37private BoundExpression? RewriteDeconstruction(BoundTupleExpression left, Conversion conversion, BoundExpression right, bool isUsed) 57Conversion conversion, 213Conversion conversion, 277private ImmutableArray<BoundExpression> GetRightParts(BoundExpression right, Conversion conversion,

468Conversion.PinnedObjectToPointer);

352Conversion receiverConversion = enumeratorType.IsStructType() ? 353Conversion.Boxing : 354Conversion.ImplicitReference; 494private BoundExpression ConvertReceiverForInvocation(CSharpSyntaxNode syntax, BoundExpression receiver, MethodSymbol method, Conversion receiverConversion, TypeSymbol convertedReceiverType) 1211private static BoundExpression GetUnconvertedCollectionExpression(BoundForEachStatement node, out Conversion collectionConversion)

93Conversion.Boxing,

134return _factory.Convert(uintPtrType, _factory.Literal((uint)folded), Conversion.IntegerToPointer); 139BoundExpression convertedCount = _factory.Convert(uintType, countExpression, Conversion.ExplicitNumeric); 140convertedCount = _factory.Convert(uintPtrType, convertedCount, Conversion.IntegerToPointer);

151Conversion c = _localRewriter._compilation.Conversions.ClassifyConversionFromExpression(expression, type, isChecked: false, ref discardedUseSiteInfo);

68var elementConversion = underlyingConversions[i]; 211var conversion = Conversion.MakeNullableConversion(ConversionKind.ImplicitNullable, Conversion.Identity); 472BoundExpression MakeBoundConversion(BoundExpression expr, Conversion conversion, TypeWithAnnotations type, BoundConversion enclosing)

161return MakeConversionNode(newNode.Syntax, newNode, Conversion.ExplicitEnumeration, type, @checked: false);

171Conversion.ImplicitDynamic, 247Conversion.ImplicitDynamic,

569var conversion = Compilation.Conversions.ClassifyConversionFromType(expression.Type, CurrentFunction.ReturnType, isChecked: false, ref useSiteInfo); 657Conversion c = Compilation.Conversions.ClassifyBuiltInConversion(operand.Type, type, isChecked: false, ref discardedUseSiteInfo); 1252? BoundConversion.SynthesizedNonUserDefined(syntax, nullLiteral, Conversion.NullToPointer, type) 1495Conversion c = Compilation.Conversions.ClassifyConversionFromExpression(arg, type, isChecked: false, ref useSiteInfo); 1500c = Conversion.Boxing; 1510public BoundExpression Convert(TypeSymbol type, BoundExpression arg, Conversion conversion, bool isChecked = false) 1794rewrittenExpr = Convert(objectType, rewrittenExpr, Conversion.Boxing);

1078Conversion conversion = boundConversion.Conversion; 1143Conversion conversion = BoundNode.GetConversion(boundAsOperator.OperandConversion, boundAsOperator.OperandPlaceholder); 1274var elementConversion = BoundNode.GetConversion(iteratorItem, element.ElementPlaceholder); 1360Conversion inConversion = BoundNode.GetConversion(boundCompoundAssignmentOperator.LeftConversion, boundCompoundAssignmentOperator.LeftPlaceholder); 1361Conversion outConversion = BoundNode.GetConversion(boundCompoundAssignmentOperator.FinalConversion, boundCompoundAssignmentOperator.FinalPlaceholder); 1593Conversion valueConversion = BoundNode.GetConversion(boundNullCoalescingOperator.LeftConversion, boundNullCoalescingOperator.LeftPlaceholder); 1598valueConversion = Conversion.Identity; 1906inlineArrayConversion: enumeratorInfoOpt.InlineArraySpanType is WellKnownType.Unknown ? null : Conversion.InlineArray,

52var conversion = conversions.ConvertExtensionMethodThisArg(method.Parameters[0].Type, receiverType, ref useSiteInfo, isMethodGroupConversion: false);

932Conversion conversion = binder.Conversions.ClassifyImplicitConversionFromExpression(defaultExpression, parameterType, ref useSiteInfo);

186Conversion conversion = compilation.Conversions.ConvertExtensionMethodThisArg(parameterType: result.ContainingType.ExtensionParameter.Type, receiverType, ref discardedUseSiteInfo, isMethodGroupConversion: false);

362var conversion = conversionOperation.GetConversion();

276var conversion = compilation.ClassifyConversion(type1, type2);

14var conversion = semanticModel.GetConversion(conditional, cancellationToken);

166var conversion = speculationAnalyzer.SpeculativeSemanticModel.GetConversion(speculationAnalyzer.ReplacedExpression, cancellationToken); 289var conversion = compilation.ClassifyConversion(type, convertedType);

108var initializerConversion = semanticModel.GetConversion(initializerValue, cancellationToken); 127var elementConversion = semanticModel.GetForEachStatementInfo(forEachStatement).ElementConversion; 139Conversion conversion,

9public static bool IsIdentityOrImplicitReference(this Conversion conversion) 15public static bool IsImplicitUserDefinedConversion(this Conversion conversion)

232var conversion = conversionOperation.GetConversion(); 296var originalConversion = originalConversionOperation.GetConversion(); 406var originalParentConversion = originalParentConversionOperation.GetConversion(); 683var conversion = semanticModel.GetConversion(castedExpressionNode, cancellationToken); 738var innerOriginalConversion = originalConversionOperation.GetConversion(); 749var outerOriginalConversion = outerOriginalConversionOperation.GetConversion(); 776var originalConversion = originalConversionOperation.GetConversion(); 802var rewrittenBitwiseNotConversion = rewrittenBitwiseNotConversionOperation.GetConversion(); 851var originalConversion = conversionOperation.GetConversion(); 1022Conversion conversion, 1081var conversion = semanticModel.GetConversion(castedExpressionNode, cancellationToken); 1109var parentConversion = semanticModel.GetConversion(castNode, cancellationToken); 1157var conversion = semanticModel.GetConversion(current, cancellationToken); 1268var oldConversion = oldForEachInfo.ElementConversion; 1269var newConversion = newForEachInfo.ElementConversion; 1526private static (ITypeSymbol? rewrittenConvertedType, Conversion rewrittenConversion) GetRewrittenInfo( 1529Conversion originalConversion, ITypeSymbol originalConvertedType, 1545var rewrittenConversion = rewrittenSemanticModel.GetConversion(rewrittenExpression, cancellationToken);

37Conversion> 408var originalConversion = this.OriginalSemanticModel.ClassifyConversion(originalOtherPartOfConditional, originalExpressionType); 409var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newOtherPartOfConditional, newExpressionType); 443var originalConversion = this.OriginalSemanticModel.ClassifyConversion(oldSwitchStatement.Expression, originalCaseType); 444var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newSwitchStatement.Expression, newCaseType); 546var originalConvertedTypeConversion = this.OriginalSemanticModel.ClassifyConversion(previousOriginalNode, originalExpressionTypeInfo.ConvertedType); 547var newExpressionConvertedTypeConversion = this.SpeculativeSemanticModel.ClassifyConversion(previousReplacedNode, newExpressionTypeInfo.ConvertedType); 709var originalConversion = this.OriginalSemanticModel.ClassifyConversion(originalIsOrAsExpression.Left, originalConvertedType, isExplicitInSource: true); 710var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newIsOrAsExpression.Left, newConvertedType, isExplicitInSource: true); 814var originalConversion = originalModel.GetConversion(originalExpression); 815var newConversion = newModel.GetConversion(newExpression); 852private bool ConversionsAreCompatible(Conversion originalConversion, Conversion newConversion) 933protected override Conversion ClassifyConversion(SemanticModel model, ExpressionSyntax expression, ITypeSymbol targetType) 936protected override Conversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType)

308var conversion = semanticModel.GetConversion(expression, cancellationToken);

102var conversion = semanticModel.Compilation.ClassifyConversion(rightType, leftType);

197var conversion = _semanticModel.Compilation.ClassifyConversion(typeInfo.Type, typeInfo.ConvertedType);

142var conversion = compilation.ClassifyConversion(sourceType, targetType);

399var conv = model.GetConversion(expr);

314Assert.Equal(Conversion.UnsetConversion, deconstructionInfo.Conversion); 1130var tupleConversion = model.GetConversion(tuple);

10809var conversion = model.GetConversion(lambdas[0]); 10814Assert.Equal(Conversion.NoConversion, conversion);

364Assert.Equal(Conversion.Identity, model.GetConversion(tupleX)); 369Assert.Equal(Conversion.Identity, model.GetConversion(lastX)); 387Assert.Equal(Conversion.ImplicitNumeric, model.GetConversion(lastY)); 729Assert.Equal(Conversion.Identity, model.GetConversion(tuple));

7500var castConversion = model.GetConversion(value); 7504var tupleConversion = model.GetConversion(tuple); 7533var tupleConversion = model.GetConversion(value); 7575var conversion1 = model.GetConversion(tuple1); 7584var conversion2 = model.GetConversion(tuple2); 7593var conversion3 = model.GetConversion(tuple3); 7641var conversion = model.GetConversion(tuple); 8329Assert.Equal(Conversion.Identity, model.GetConversion(l11)); 8354Assert.Equal(Conversion.Identity, model.GetConversion(node.Parent)); 8496Assert.Equal(Conversion.Identity, model.GetConversion(node)); 8530Assert.Equal(Conversion.Identity, model.GetConversion(node)); 8603Assert.Equal(Conversion.Identity, model.GetConversion(node.Parent)); 8632Assert.Equal(Conversion.Identity, model.GetConversion(node)); 8667Assert.Equal(Conversion.Identity, model.GetConversion(node)); 8696Assert.Equal(Conversion.Identity, model.GetConversion(node)); 8756Assert.Equal(Conversion.Identity, model.GetConversion(l11)); 8781Assert.Equal(Conversion.Identity, model.GetConversion(node.Parent)); 8841Assert.Equal(Conversion.Identity, model.GetConversion(lnull)); 8854Assert.Equal(Conversion.Identity, model.GetConversion(node.Parent)); 8964Assert.Equal(Conversion.Identity, model.GetConversion(node.Parent)); 9077Assert.Equal(Conversion.NoConversion, model.GetConversion(node)); 17217Assert.Equal(Conversion.Identity, model.GetConversion(n1)); 17224Assert.Equal(Conversion.Identity, model.GetConversion(n2)); 17231Assert.Equal(Conversion.Identity, model.GetConversion(n3)); 17238Assert.Equal(Conversion.Identity, model.GetConversion(n4)); 17299Assert.Equal(Conversion.ImplicitReference, model.GetConversion(n4));

64internal static void AssertMatches(ConversionKind[] expected, Conversion conversion)

2831var argConv = model.GetConversion(arg); 2865var conv = op.GetConversion(); 2881var conv = op.GetConversion();

14245var conversion = model.GetConversion(returnValue); 14251var underlyingConversion = conversion.UnderlyingConversions[0]; 14321var conversion = model.GetConversion(returnValue); 14327var underlyingConversion = conversion.UnderlyingConversions[0]; 14394var conversion = model.GetConversion(collection); 14458var castConversion = model.GetConversion(cast); 14463var conversion = model.GetConversion(value); 14582var castConversion = model.GetConversion(cast); 14587var conversion = model.GetConversion(value); 14666var conversion = model.GetConversion(nestedCollection); 14755var conversion = model.GetConversion(nestedCollection); 14761var underlyingConversion = conversion.UnderlyingConversions[0]; 15109var conversion = model.GetConversion(expr); 26754var expectedConversion = new Conversion(ConversionKind.CollectionExpression, nestedConversions: ImmutableArray.Create(Conversion.Identity, Conversion.Identity)); 26809var expectedConversion = new Conversion(ConversionKind.CollectionExpression, nestedConversions: ImmutableArray.Create(Conversion.Identity, Conversion.Identity)); 27043var expectedConversion = new Conversion(ConversionKind.Boxing, nestedConversions: default); 27066var expectedConversion = new Conversion(ConversionKind.ImplicitReference, nestedConversions: default); 28632var conversion1 = model.GetConversion(collections[0]); 28634Assert.Equal(Conversion.NoConversion, conversion1); 28636var conversion2 = model.GetConversion(collections[1]); 28676var conversion1 = model.GetConversion(collections[0]); 28678Assert.Equal(Conversion.NoConversion, conversion1); 28680var conversion2 = model.GetConversion(collections[1]); 28725var conversion1 = model.GetConversion(collections[0]); 28730var conversion2 = model.GetConversion(collections[1]); 28766var conversion1 = model.GetConversion(collections[0]); 28768Assert.Equal(Conversion.NoConversion, conversion1); 28770var conversion2 = model.GetConversion(collections[1]); 28809var conversion1 = model.GetConversion(collections[0]); 28811Assert.Equal(Conversion.NoConversion, conversion1); 28813var conversion2 = model.GetConversion(collections[1]); 28852var conversion = model.GetConversion(collection); 28892var conversion = model.GetConversion(collection); 28924var conversion = model.GetConversion(collection); 28958var conversion1 = model.GetConversion(collections[0]); 28960Assert.Equal(Conversion.NoConversion, conversion1); 28962var conversion2 = model.GetConversion(collections[1]); 28970var conversion3 = model.GetConversion(collections[2]); 28978var conversion4 = model.GetConversion(collections[3]); 28980Assert.Equal(Conversion.NoConversion, conversion4); 29011var conversion1 = model.GetConversion(collections[0]); 29013Assert.Equal(Conversion.NoConversion, conversion1); 29015var conversion2 = model.GetConversion(collections[1]); 29023var conversion3 = model.GetConversion(collections[2]); 29031var conversion4 = model.GetConversion(collections[3]); 29033Assert.Equal(Conversion.NoConversion, conversion4); 29077var conversion1 = model.GetConversion(collections[0]); 29080var conversion2 = model.GetConversion(collections[1]); 29087var conversion3 = model.GetConversion(collections[2]); 29094var conversion4 = model.GetConversion(collections[3]); 29138var conversion1 = model.GetConversion(collections[0]); 29141var conversion2 = model.GetConversion(collections[1]); 29148var conversion3 = model.GetConversion(collections[2]); 29155var conversion4 = model.GetConversion(collections[3]); 29214var conversion1 = model.GetConversion(collection); 29216Assert.Equal(Conversion.NoConversion, conversion1); 29257var conversion1 = model.GetConversion(collections[0]); 29262var conversion2 = model.GetConversion(collections[1]); 29264Assert.Equal(Conversion.NoConversion, conversion2); 29304var conversion = model.GetConversion(collection); 29306Assert.Equal(Conversion.NoConversion, conversion); 32325var collectionConversion = model.GetConversion(collection); 32331var elementConversion = model.GetConversion(element); 32422var elementConversion1 = model.GetConversion(element1); 32428var elementConversion2 = model.GetConversion(element2); 32464var elementConversion1 = model.GetConversion(element1); 32470var elementConversion2 = model.GetConversion(element2); 32510var elementConversion1 = model.GetConversion(element1); 32516var elementConversion2 = model.GetConversion(element2);

1057var conversion = model.ClassifyConversion(decl, model.Compilation.ObjectType, false);

2875var conversion = model.GetConversion(expr);

100var conv = semanticModel.GetConversion(expression, cancellationToken); 133private static bool IsCoClassImplicitConversion(TypeInfo info, Conversion conversion, INamedTypeSymbol? coclassSymbol)

362var conversion = conversionOperation.GetConversion();

276var conversion = compilation.ClassifyConversion(type1, type2);

14var conversion = semanticModel.GetConversion(conditional, cancellationToken);

166var conversion = speculationAnalyzer.SpeculativeSemanticModel.GetConversion(speculationAnalyzer.ReplacedExpression, cancellationToken); 289var conversion = compilation.ClassifyConversion(type, convertedType);

108var initializerConversion = semanticModel.GetConversion(initializerValue, cancellationToken); 127var elementConversion = semanticModel.GetForEachStatementInfo(forEachStatement).ElementConversion; 139Conversion conversion,

102var conversion = semanticModel.Compilation.ClassifyConversion(rightType, leftType);

197var conversion = _semanticModel.Compilation.ClassifyConversion(typeInfo.Type, typeInfo.ConvertedType);

142var conversion = compilation.ClassifyConversion(sourceType, targetType);

49var conversion = semanticModel.Compilation.ClassifyConversion(argType, parameters[0].Type);

48Assert.Equal(Conversion.Identity, compoundAssignment.GetInConversion()); 49Assert.Equal(Conversion.Identity, compoundAssignment.GetOutConversion()); 88var inConversion = new Conversion(ConversionKind.ImplicitUserDefined, inSymbol, false); 89var outConversion = new Conversion(ConversionKind.ImplicitUserDefined, outSymbol, false);

932Assert.Equal(Conversion.Identity, model.GetConversion(literalExpr)); 939Assert.Equal(Conversion.Identity, model.GetConversion(invocExpr));

1224private static Conversion GetCollectionConversion(BoundForEachStatement boundNode) 2147var conv = model.GetConversion(loopSyntax.Type); 3362Assert.Equal(Conversion.Identity, info.CurrentConversion); 3363Assert.Equal(Conversion.Identity, info.ElementConversion);

213var conversion = model.GetConversion(initializer1); 218var classifiedConversion = comp.ClassifyConversion(typeInfo.Type, typeInfo.ConvertedType!); 295var conversion = model.GetConversion(literal); 303var classifiedConversion = model.ClassifyConversion(literal, typeInfo.ConvertedType); 355var conversion = model.ClassifyConversion(conversions[0].Expression, typeInfoOuter.Type!); 406var conversion = model.ClassifyConversion(conversions[0].Expression, typeInfoOuter.Type!); 458var conversion = model.ClassifyConversion(conversions[0].Expression, typeInfoOuter.Type!); 508var conversion = model.ClassifyConversion(conv.Expression, typeInfoOuter.Type!); 605var conversion = model.GetConversion(decl); 609var classifiedConversion = comp.ClassifyConversion(typeInfo.Type!, typeInfo.ConvertedType!); 844var conversion = model.GetConversion(decl); 850var classifiedConversion = comp.ClassifyConversion(typeInfo.Type!, typeInfo.ConvertedType!); 902var conversion = model.GetConversion(initializer); 909var classifiedConversion = comp.ClassifyConversion(typeInfo.Type!, typeInfo.ConvertedType!);

844var conv = model.GetConversion(expr);

56internal static void AssertMatches(ConversionKind[] expected, Conversion conversion)

3818var conversion = model.GetConversion(literal); 3841var conversion = model.GetConversion(literal); 3865var conversion = model.GetConversion(literal);

3254"valuePlaceholder" => Conversion.Identity, 3257Conversion.NoConversion

253Assert.Equal(Conversion.Identity, summary.ImplicitConversion); 570Assert.Equal(Conversion.Identity, summary.ImplicitConversion);

376Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 382Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 390Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 396Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 404Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 410Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 452Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 458Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 466Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 472Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 480Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 486Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 2368Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2374Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2380Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2386Assert.Equal(Conversion.Identity, sizeInfo.ImplicitConversion); 2396Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2402Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2408Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2414Assert.Equal(Conversion.Identity, sizeInfo.ImplicitConversion); 2424Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2430Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2436Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2442Assert.Equal(Conversion.Identity, sizeInfo.ImplicitConversion); 2474Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2480Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2486Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2496Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2502Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2508Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2518Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2524Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2530Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2574Assert.Equal(Conversion.NoConversion, stackallocInfo.ImplicitConversion); 2580Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2586Assert.Equal(Conversion.ImplicitNumeric, element1Info.ImplicitConversion); 2592Assert.Equal(Conversion.ImplicitNumeric, sizeInfo.ImplicitConversion); 2602Assert.Equal(Conversion.NoConversion, stackallocInfo.ImplicitConversion); 2608Assert.Equal(Conversion.ImplicitNumeric, element0Info.ImplicitConversion); 2614Assert.Equal(Conversion.ImplicitNumeric, element1Info.ImplicitConversion); 2620Assert.Equal(Conversion.Identity, sizeInfo.ImplicitConversion); 2658Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2664Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 2670Assert.Equal(Conversion.Identity, element1Info.ImplicitConversion); 2680Assert.Equal(Conversion.Identity, stackallocInfo.ImplicitConversion); 2686Assert.Equal(Conversion.Identity, element0Info.ImplicitConversion); 2692Assert.Equal(Conversion.ImplicitNumeric, element1Info.ImplicitConversion);

336Assert.Equal(Conversion.Identity, model.GetConversion(default2)); 3529Conversion conversion = model.GetConversion(conversionSyntax); 3602Conversion conversion = model.GetConversion(default4);

9708var conversionInTopLevel = speculativeModelInTopLevel.GetConversion(nodeToSpeculate.DescendantTokens().Single(n => n.ValueText == "x").Parent); 9713var conversionOutsideTopLevel = speculativeModelOutsideTopLevel.GetConversion(nodeToSpeculate.DescendantTokens().Single(n => n.ValueText == "x").Parent);

7267var conv = model.GetConversion(syntax); 7270Assert.Equal(Conversion.Identity, conv); 7334var conv = model.GetConversion(syntax); 7337Assert.Equal(Conversion.Identity, conv); 7372var conv = model.GetConversion(syntax); 7375Assert.Equal(Conversion.Identity, conv); 7414var conv = model.GetConversion(syntax); 7417Assert.Equal(Conversion.Identity, conv); 7545var conv = model.GetConversion(syntax); 7548Assert.Equal(Conversion.Identity, conv); 8349var conv = model.GetConversion(node); 8394var conv = model.GetConversion(value); 8884Assert.Equal(Conversion.Identity, summary.ImplicitConversion); 8919Assert.Equal(Conversion.Identity, summary.ImplicitConversion); 9346Assert.Equal(Conversion.Identity, summary.ImplicitConversion); 10237Assert.Equal(Conversion.Identity, summary.ImplicitConversion); 10313Assert.Equal(Conversion.PointerToVoid, summary0.ImplicitConversion); 10320Assert.Equal(Conversion.PointerToVoid, summary1.ImplicitConversion); 10326Assert.Equal(Conversion.PointerToVoid, summary2.ImplicitConversion); 10639Assert.Equal(Conversion.Identity, typeSummary.ImplicitConversion); 10651Assert.Equal(Conversion.Identity, sizeOfSummary.ImplicitConversion); 10701Assert.Equal(Conversion.Identity, typeSummary.ImplicitConversion); 10713Assert.Equal(Conversion.Identity, sizeOfSummary.ImplicitConversion); 10761Assert.Equal(Conversion.Identity, typeSummary.ImplicitConversion); 10773Assert.Equal(Conversion.Identity, sizeOfSummary.ImplicitConversion); 11313Assert.Equal(Conversion.PointerToVoid, stackAllocSummary.ImplicitConversion); 11325Assert.Equal(Conversion.Identity, typeSummary.ImplicitConversion); 11337Assert.Equal(Conversion.ImplicitNumeric, countSummary.ImplicitConversion);

42var conv1 = Conversion.Identity; 49var conv2 = Conversion.NoConversion;

108var conv = model.GetConversion(expr); 142var conv = model.GetConversion(expr); 604var impconv = model.GetConversion(expr1); 605Assert.Equal(Conversion.Identity, impconv); 606Conversion conv = model.ClassifyConversion(expr1, info.ConvertedType); 634var impconv = model.GetConversion(expr1); 638Conversion conv = model.ClassifyConversion(expr1, info.ConvertedType); 648var conversion = info.Type != null && info.ConvertedType != null ? model.Compilation.ClassifyConversion(info.Type, info.ConvertedType) : Conversion.NoConversion; 655ValidateConversion(Conversion.PointerToVoid, ConversionKind.ImplicitPointerToVoid); 656ValidateConversion(Conversion.NullToPointer, ConversionKind.ImplicitNullToPointer); 657ValidateConversion(Conversion.PointerToPointer, ConversionKind.ExplicitPointerToPointer); 658ValidateConversion(Conversion.IntegerToPointer, ConversionKind.ExplicitIntegerToPointer); 659ValidateConversion(Conversion.PointerToInteger, ConversionKind.ExplicitPointerToInteger); 660ValidateConversion(Conversion.IntPtr, ConversionKind.IntPtr); 664private void ValidateConversion(Conversion conv, ConversionKind kind) 847var conv = semanticModel.GetConversion(expr); 850Conversion act1 = semanticModel.ClassifyConversion(expr, info.ConvertedType); 863var act2 = semanticModel.Compilation.ClassifyConversion(info.Type, info.ConvertedType); 876Conversion act1 = semanticModel.ClassifyConversion(expr, expsym); 2456var conv = model.GetConversion(expr); 2485var conv = model.GetConversion(expr); 2734var conv = model.GetConversion(expr); 2735Assert.Equal(Conversion.Identity, conv); 2805var conv = model.GetConversion(expr); 3336var conversion = model.ClassifyConversion(expr, gNullableType); 3402var conversion = model.ClassifyConversion(expr, gNullableType); 3477var argConversion = model.GetConversion(argexpr); 3531var argConversion = model.GetConversion(argexpr); 3610var conv = model.GetConversion(literal); 3635var literalConversion = model.GetConversion(literal); 3643var castConversion = model.GetConversion(cast); 3668var literalConversion = model.GetConversion(literal); 3676var castConversion = model.GetConversion(cast); 3704var literalConversion = model.GetConversion(literal); 3712var cast1Conversion = model.GetConversion(cast1); 3724var cast2Conversion = model.GetConversion(cast2); 4300Assert.Equal(Conversion.Identity, info.ImplicitConversion); 4379var conv = model.GetConversion(syntax); 5538var conversion = model.ClassifyConversion(lambdaSyntax, otherFuncType); 5586var conversion = model.ClassifyConversion(nullSyntax, typeC); 5625var conversion = model.ClassifyConversion(lambdaSyntax, typeFuncB); 5672var conversion = model.ClassifyConversion(lambdaSyntax, typeFuncC); 5733var conversionA = model.ClassifyConversion(methodGroupSyntax, typeFuncA); 5737var conversionB = model.ClassifyConversion(methodGroupSyntax, typeFuncB); 5740var conversionC = model.ClassifyConversion(methodGroupSyntax, typeFuncC); 5991Assert.Equal(Conversion.UnsetConversion, foreachSymbolInfo.CurrentConversion);

2281var conv = speculativeModel.GetConversion(initializer);

14804var conv = model.GetConversion(creation.Type); 14900var conv = model.GetConversion(creation.Type); 15011var conv = model.GetConversion(creation.Type);

182var result = c.ClassifyConversionFromType(types[j], types[i], ref useSiteDiagnostics); 186var result2 = c.ClassifyConversionFromType(types[j], types[i], ref useSiteDiagnostics); // set breakpoint here if this test is failing... 402Conversion conversion = model.ClassifyConversion(sourceExpression1, targetType); 486var conversion = model.GetConversion(memberAccess); 521var conversion = model.GetConversion(memberAccess); 557var conversion = model.GetConversion(memberAccess); 593var conversion = model.GetConversion(memberAccess); 627var conversion = model.GetConversion(memberAccess); 662var conversion = model.GetConversion(memberAccess); 687var conversion = model.GetConversion(memberAccess); 2079var elementConversion = BoundNode.GetConversion(boundForEach.ElementConversion, boundForEach.ElementPlaceholder);

214public Conversion ImplicitConversion = default(Conversion);

887public static Conversion ClassifyConversionFromType(this ConversionsBase conversions, TypeSymbol source, TypeSymbol destination, ref HashSet<DiagnosticInfo> useSiteDiagnostics, bool forCast = false) 890Conversion result = conversions.ClassifyConversionFromType(source, destination, isChecked: false, ref useSiteInfo, forCast); 910public static Conversion ClassifyConversionFromExpression(this Conversions conversions, BoundExpression sourceExpression, TypeSymbol destination, ref HashSet<DiagnosticInfo> useSiteDiagnostics, bool forCast = false) 913Conversion result = conversions.ClassifyConversionFromExpression(sourceExpression, destination, isChecked: false, ref useSiteInfo, forCast);

9public static bool IsIdentityOrImplicitReference(this Conversion conversion) 15public static bool IsImplicitUserDefinedConversion(this Conversion conversion)

232var conversion = conversionOperation.GetConversion(); 296var originalConversion = originalConversionOperation.GetConversion(); 406var originalParentConversion = originalParentConversionOperation.GetConversion(); 683var conversion = semanticModel.GetConversion(castedExpressionNode, cancellationToken); 738var innerOriginalConversion = originalConversionOperation.GetConversion(); 749var outerOriginalConversion = outerOriginalConversionOperation.GetConversion(); 776var originalConversion = originalConversionOperation.GetConversion(); 802var rewrittenBitwiseNotConversion = rewrittenBitwiseNotConversionOperation.GetConversion(); 851var originalConversion = conversionOperation.GetConversion(); 1022Conversion conversion, 1081var conversion = semanticModel.GetConversion(castedExpressionNode, cancellationToken); 1109var parentConversion = semanticModel.GetConversion(castNode, cancellationToken); 1157var conversion = semanticModel.GetConversion(current, cancellationToken); 1268var oldConversion = oldForEachInfo.ElementConversion; 1269var newConversion = newForEachInfo.ElementConversion; 1526private static (ITypeSymbol? rewrittenConvertedType, Conversion rewrittenConversion) GetRewrittenInfo( 1529Conversion originalConversion, ITypeSymbol originalConvertedType, 1545var rewrittenConversion = rewrittenSemanticModel.GetConversion(rewrittenExpression, cancellationToken);

37Conversion> 408var originalConversion = this.OriginalSemanticModel.ClassifyConversion(originalOtherPartOfConditional, originalExpressionType); 409var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newOtherPartOfConditional, newExpressionType); 443var originalConversion = this.OriginalSemanticModel.ClassifyConversion(oldSwitchStatement.Expression, originalCaseType); 444var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newSwitchStatement.Expression, newCaseType); 546var originalConvertedTypeConversion = this.OriginalSemanticModel.ClassifyConversion(previousOriginalNode, originalExpressionTypeInfo.ConvertedType); 547var newExpressionConvertedTypeConversion = this.SpeculativeSemanticModel.ClassifyConversion(previousReplacedNode, newExpressionTypeInfo.ConvertedType); 709var originalConversion = this.OriginalSemanticModel.ClassifyConversion(originalIsOrAsExpression.Left, originalConvertedType, isExplicitInSource: true); 710var newConversion = this.SpeculativeSemanticModel.ClassifyConversion(newIsOrAsExpression.Left, newConvertedType, isExplicitInSource: true); 814var originalConversion = originalModel.GetConversion(originalExpression); 815var newConversion = newModel.GetConversion(newExpression); 852private bool ConversionsAreCompatible(Conversion originalConversion, Conversion newConversion) 933protected override Conversion ClassifyConversion(SemanticModel model, ExpressionSyntax expression, ITypeSymbol targetType) 936protected override Conversion ClassifyConversion(SemanticModel model, ITypeSymbol originalType, ITypeSymbol targetType)

308var conversion = semanticModel.GetConversion(expression, cancellationToken);

852CSharp.Conversion csharpConversion = CSharp.CSharpExtensions.GetConversion(operation); 1181var inConversionInternal = CSharp.CSharpExtensions.GetInConversion(operation); 1182var outConversionInternal = CSharp.CSharpExtensions.GetOutConversion(operation);

728Conversion conversion = _compilation.ClassifyConversion(source, dest);

730var conversion = _compilation.ClassifyConversion(source, dest);

54var conversion = comp.ClassifyConversion(source, dest);

287var conversion = _compilation.ClassifyConversion(source, dest);

59var conversion = comp.ClassifyConversion(source, dest);

287var conversion = _compilation.ClassifyConversion(source, dest);

59var conversion = comp.ClassifyConversion(source, dest);

59var conversion = comp.ClassifyConversion(source, dest);

59var conversion = comp.ClassifyConversion(source, dest);