411this.Type = type; 417this.Type = type;

879RoslynDebug.Assert(expression.Type is object); 880return expression.Type;

925Debug.Assert(!checkingReceiver || expr.Type.IsValueType || expr.Type.IsTypeParameter()); 952if ((expr.ConstantValueOpt != null) || (expr.Type.GetSpecialTypeSafe() == SpecialType.System_Void)) 1142getItemOrSliceHelper = getItemOrSliceHelper.AsMember(getItemOrSliceHelper.ContainingType.Construct(ImmutableArray.Create(elementAccess.Expression.Type.TryGetInlineArrayElementField().TypeWithAnnotations))); 1213indices[0].Type, 1246Error(diagnostics, ErrorCode.ERR_BadSKunknown, expr.Syntax, expr.Type, MessageID.IDS_SK_TYPE.Localize()); 1885&& receiver?.Type?.IsValueType == true; 2117if (receiver is BoundObjectOrCollectionValuePlaceholder && receiver.Type.IsAnonymousType) 2281if (methodInvocationInfo.MethodInfo.Method?.RequiresInstanceReceiver == true && methodInvocationInfo.Receiver?.Type?.IsRefLikeOrAllowsRefLikeType() == true) 2507if (receiver?.Type?.IsRefLikeOrAllowsRefLikeType() == true) 2620Debug.Assert(receiver.Type is { }); 2625Debug.Assert(receiver is not BoundValuePlaceholderBase && method is not null && receiver.Type?.IsReferenceType == false); 2630receiver = new BoundCapturedReceiverPlaceholder(receiver.Syntax, receiver, _localScopeDepth, receiver.Type).MakeCompilerGenerated(); 2749if (receiver.Type is TypeParameterSymbol typeParameter) 2988if (argument.Type?.IsRefLikeOrAllowsRefLikeType() == true) 3048if (argument.Type?.IsRefLikeOrAllowsRefLikeType() == true) 3186&& argument.Type?.IsRefLikeOrAllowsRefLikeType() == true) 3648Debug.Assert(expr.Type is not null); 3680if (expr.Type?.GetSpecialTypeSafe() == SpecialType.System_Void) 3956Debug.Assert(!checkingReceiver || expr.Type.IsValueType || expr.Type.IsTypeParameter()); 3971if (expr.Type?.GetSpecialTypeSafe() == SpecialType.System_Void) 4339if (expr.Type?.IsRefLikeOrAllowsRefLikeType() != true) 4762RoslynDebug.Assert(false, $"{expr.Kind} expression of {expr.Type} type"); 4987Debug.Assert(!checkingReceiver || expr.Type.IsValueType || expr.Type.IsTypeParameter()); 5008if (expr.Type?.IsRefLikeOrAllowsRefLikeType() != true) 5073Error(diagnostics, inUnsafeRegion ? ErrorCode.WRN_EscapeStackAlloc : ErrorCode.ERR_EscapeStackAlloc, node, expr.Type); 5338Error(diagnostics, ErrorCode.ERR_CollectionExpressionEscape, node, expr.Type); 5528RoslynDebug.Assert(false, $"{expr.Kind} expression of {expr.Type} type"); 5701TypeWithAnnotations.Create(elementAccess.Expression.Type), 5741TypeWithAnnotations.Create(inlineArray.Type),

66return new BoundRangeVariable(node, qv, translation, translation.Type); 74var receiverType = receiver.Type as NamedTypeSymbol; 80if (receiver.Type?.IsErrorType() != true) 96LookupMembersWithFallback(lookupResult, receiver.Type, name, 0, ref useSiteInfo, basesBeingResolved: null, options: options);

214TypeSymbol? expressionType = expression.Type;

841RoslynDebug.Assert(node.Type is object); 842var typedConstantKind = node.Type.GetAttributeParameterTypedConstantKind(_binder.Compilation); 895return new TypedConstant(spread.Expression.Type, TypedConstantKind.Error, value: null); 914var operandType = operand.Type; 1017var type = node.Type;

32var placeholder = new BoundAwaitableValuePlaceholder(expression.Syntax, expression.Type); 87var type = expression.Type; 269Debug.Assert(TypeSymbol.Equals(expression.Type, getAwaiterArgument.Type, TypeCompareKind.ConsiderEverything)); 305TypeSymbol awaiterType = getAwaiter.Type!; 306return GetIsCompletedProperty(awaiterType, node, expression.Type!, diagnostics, out isCompleted) 308&& GetGetResultMethod(getAwaiter, node, expression.Type!, diagnostics, out getResult, out getAwaiterGetResultCall) 333if (expression.Type is not NamedTypeSymbol { Arity: 0 or 1 } exprType) 360placeholder = new BoundAwaitableValuePlaceholder(expression.Syntax, expression.Type); 550if (expression.Type is null) 572RoslynDebug.Assert(expression.Type is object); 573if (expression.Type.IsVoidType()) 589Error(diagnostics, ErrorCode.ERR_BadAwaitArg, node, expression.Type); 602Error(diagnostics, ErrorCode.ERR_BadAwaitArg, node, expression.Type); 686var awaiterType = awaiterExpression.Type;

75else if (source.Type is not null && filterConversion(conversion)) 77var placeholder2 = new BoundValuePlaceholder(source.Syntax, source.Type); 120RoslynDebug.Assert(source.Type is object); 124if (!isCast && source.Type.Equals(destination, TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)) 211TypeSymbol? type = source.Type; 255Debug.Assert(source.Type is null); 281source.Type is { } sourceType && 322switch (source.Type?.IsNullableType()) 327new BoundValuePlaceholder(source.Syntax, source.Type.GetNullableUnderlyingType()), 352else if (source.Type?.IsNullableType() == true) 356new BoundValuePlaceholder(source.Syntax, source.Type.GetNullableUnderlyingType()), 373if (source.Type?.TryGetElementTypesWithAnnotationsIfTupleType(out sourceTypes) == true && 446Debug.Assert(source.Type is { }); 448FieldSymbol? elementField = source.Type.TryGetInlineArrayElementField(); 481CheckInlineArrayTypeIsSupported(syntax, source.Type, elementField.Type, diagnostics); 485Debug.Assert(source.Type is not null); 494if (source.Type is ArrayTypeSymbol) 505if (source.Type.IsSpan()) 509TryFindImplicitOperatorFromSpan(source.Type.OriginalDefinition, destination.OriginalDefinition), 510source.Type.OriginalDefinition, 517if (source.Type.IsSpan() || source.Type.IsReadOnlySpan()) 520if (NeedsSpanCastUp(source.Type, destination)) 525TypeSymbol sourceForCastUp = source.Type.IsSpan() 527: source.Type.OriginalDefinition; 538.Construct([((NamedTypeSymbol)source.Type).TypeArgumentsWithAnnotationsNoUseSiteDiagnostics[0]]) 544if (source.Type.IsStringType()) 722unconvertedSource.Type, 1358Debug.Assert(methodGroup.ReceiverOpt.Type is not null); 1428diagnostics.Add(ErrorCode.ERR_CollectionExpressionMissingAdd, syntax, methodGroup.ReceiverOpt.Type); 1492TypeSymbol? receiverType = methodGroup.ReceiverOpt.Type; 1969Debug.Assert(targetTyped || destination.IsErrorType() || destination.Equals(source.Type, TypeCompareKind.ConsiderEverything)); 1988source.Syntax, source.Type, targetTyped, source.Expression, newSwitchArms, source.ReachabilityDecisionDag, 2074conversion: Conversions.ClassifyStandardConversion(convertedOperand.Type, conversionParameterType, ref useSiteInfo), 2679RoslynDebug.Assert(receiverOpt.Type is object); 2681diagnostics.Add(ErrorCode.ERR_QueryNoProvider, node.Location, receiverOpt.Type, memberSymbol.Name); 2699RoslynDebug.Assert(receiverOpt.Type is object); 2700diagnostics.Add(ErrorCode.ERR_BadAwaitArg, node.Location, receiverOpt.Type); 2835(Conversions.ConvertExtensionMethodThisArg(GetReceiverParameter(method)!.Type, receiverOpt!.Type, ref useSiteInfo, isMethodGroupConversion: true).Exists && useSiteInfo.Diagnostics.IsNullOrEmpty()));

122if ((object?)boundRHS.Type == null || boundRHS.Type.IsErrorType()) 128var type = boundRHS.Type ?? voidType; 143boundRHS.Type, 158Debug.Assert(hasErrors || lhsTuple.Type is object); 159TypeSymbol returnType = hasErrors ? CreateErrorType() : lhsTuple.Type!; 226else if ((object?)boundRHS.Type == null) 321Debug.Assert(single.Type is not null); 323nestedConversion = this.Conversions.ClassifyConversionFromType(tupleOrDeconstructedTypes[i], single.Type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 329GenerateImplicitConversionError(diagnostics, Compilation, single.Syntax, nestedConversion, tupleOrDeconstructedTypes[i], single.Type); 336nestedConversion, isCast: false, conversionGroupOpt: null, single.Type, diagnostics))); 357if ((object?)pending.Type != null) 421Debug.Assert((object?)variables[i].Single!.Type != null); 481TypeSymbol? mergedType = element.Type; 502if ((object?)variable.Single.Type != null) 505mergedType = variable.Single.Type; 569typesWithAnnotationsBuilder.Add(TypeWithAnnotations.Create(value.Type)); 622if (receiver.Type?.IsDynamic() ?? false) 718if (receiver.Type?.IsErrorType() == false) 720Error(diagnostics, ErrorCode.ERR_MissingDeconstruct, rightSyntax, receiver.Type!, numParameters);

205TypeSymbol resultType = expr.Type; 298var commonType = expr.Type; 370case BoundStackAllocArrayCreation { Type: null } boundStackAlloc: 571TypeSymbol exprType = expr.Type; 988subExpressions.SelectAsArray(e => TypeWithAnnotations.Create(e.Type)), 1045if (boundArgument.Type?.SpecialType == SpecialType.System_Void) 1055var elementTypeWithAnnotations = TypeWithAnnotations.Create(boundArgument.Type); 1254if ((object)argument.Type != null && argument.Type.IsRestrictedType()) 1257Error(diagnostics, ErrorCode.ERR_MethodArgCantBeRefAny, node, argument.Type); 1707type: expression.Type, 2615(object)operand.Type != null && 2616!operand.Type.IsNullableType() && 2617!TypeSymbol.Equals(targetType.GetNullableUnderlyingType(), operand.Type, TypeCompareKind.ConsiderEverything2)) 2638if ((object)boundOperand.Type != null && boundOperand.Type.IsNullableType()) 2717if (left?.Type.IsNullableType() == true || right?.Type.IsNullableType() == true) 2745if (boundOperand.Type?.IsNullableType() == true) 2837SymbolDistinguisher distinguisher1 = new SymbolDistinguisher(this.Compilation, operand.Type, targetType); 2886case BoundKind.UnconvertedConditionalOperator when operand.Type is null: 2887case BoundKind.UnconvertedSwitchExpression when operand.Type is null: 2911Debug.Assert((object)operand.Type != null); 2912SymbolDistinguisher distinguisher = new SymbolDistinguisher(this.Compilation, operand.Type, targetType); 2953Debug.Assert((object)operand.Type != null && !operand.Type.IsNullableType()); 2959var underlyingConversion = Conversions.ClassifyBuiltInConversion(operand.Type, underlyingTargetTypeWithAnnotations.Type, isChecked: CheckOverflowAtRuntime, ref discardedUseSiteInfo); 3812Debug.Assert(receiver!.Type is not null); 3814placeholderType = receiver.Type; 4259if ((object)boundExpression.Type == null || !boundExpression.Type.IsErrorType()) 4343Debug.Assert(init.Type.IsErrorType()); 4753if (constantValue == null || constantValue.IsBad || expression.Type.SpecialType != SpecialType.System_Int32) 4776var type = expression.Type.SpecialType; 5333Debug.Assert(expression.Type is { }); 5335var expressionPlaceholder = new BoundCollectionExpressionSpreadExpressionPlaceholder(syntax.Expression, expression.Type); 5348_ = expression.Type.HasInlineArrayAttribute(out int length); 5478else if ((object)argument.Type == null) 5490else if (argument.Type.TypeKind == TypeKind.Delegate) 5492var sourceDelegate = (NamedTypeSymbol)argument.Type; 5496if (ReportDelegateInvokeUseSiteDiagnostic(diagnostics, argument.Type, node: node)) 5777Debug.Assert((object)boundLeft.Type != null); 5786type: boundLeft.Type, 6074type: boundMember.Type, 6488({ Type: null } or BoundLiteral or BoundUnconvertedInterpolatedString or BoundBinaryOperator { IsUnconvertedInterpolatedStringAddition: true }) && 7560var leftType = boundValue.Type; 7568if (TypeSymbol.Equals(boundType.Type, leftType, TypeCompareKind.AllIgnoreOptions)) 7600TypeSymbol.Equals(BindNamespaceOrType(id, BindingDiagnosticBag.Discarded).Type, type, TypeCompareKind.AllIgnoreOptions); 7704TypeSymbol leftType = boundLeft.Type; 7742leftType = boundLeft.Type; 7985Error(diagnostics, ErrorCode.WRN_DotOnDefault, node, boundLeft.Type); 8112var leftType = boundLeft.Type; 8247if ((object)boundLeft.Type == null) 8256Error(diagnostics, ErrorCode.ERR_NoSuchMember, name, boundLeft.Type, plainName); 8258else if (WouldUsingSystemFindExtension(boundLeft.Type, plainName)) 8260Error(diagnostics, ErrorCode.ERR_NoSuchMemberOrExtensionNeedUsing, name, boundLeft.Type, plainName, "System"); 8264Error(diagnostics, ErrorCode.ERR_NoSuchMemberOrExtension, name, boundLeft.Type, plainName); 8564Debug.Assert(left.Type is not null); 8565Debug.Assert(!left.Type.IsDynamic()); 8657Debug.Assert(left.Type is not null); 8693firstResult = makeErrorResult(left.Type, memberName, arity, lookupResult, expression, diagnostics); 8719result = makeErrorResult(left.Type, memberName, arity, lookupResult, expression, diagnostics); 8738result = makeErrorResult(left.Type, memberName, arity, lookupResult, expression, diagnostics); 8766TypeSymbol? receiverType = left.Type; 8919TypeSymbol receiverType = receiver.Type; 9090if (receiverOpt is { Type: TypeParameterSymbol { AllowsRefLikeType: true } } && 9132bool isUsableAsField = eventSymbol.HasAssociatedField && this.IsAccessible(eventSymbol.AssociatedField, ref useSiteInfo, (receiver != null) ? receiver.Type : null); 9372if ((object)expr.Type == null) 9393expr.Type.HasInlineArrayAttribute(out int length) && expr.Type.TryGetPossiblyUnsupportedByLanguageInlineArrayElementField() is FieldSymbol elementField) 9405Debug.Assert(expr.Type.TryGetInlineArrayElementField() is not null); 9425{ Code: (int)ErrorCode.ERR_BadIndexLHS, Arguments: [TypeSymbol type] } && type.Equals(expr.Type, TypeCompareKind.ConsiderEverything)) 9552CheckInlineArrayTypeIsSupported(node, expr.Type, elementField.Type, diagnostics); 9603if (TypeSymbol.Equals(convertedIndex.Type, compilation.GetWellKnownType(WellKnownType.System_Index), TypeCompareKind.AllIgnoreOptions)) 9651Debug.Assert((object)expr.Type != null); 9654var exprType = expr.Type; 9697var arrayType = (ArrayTypeSymbol)expr.Type; 9744var receiverPlaceholder = new BoundImplicitIndexerReceiverPlaceholder(expr.Syntax, isEquivalentToThisReference: expr.IsEquivalentToThisReference, expr.Type) { WasCompilerGenerated = true }; 9908Debug.Assert(expr.Type.IsPointerType()); 9909PointerTypeSymbol pointerType = (PointerTypeSymbol)expr.Type; 9955Debug.Assert((object)expr.Type != null); 9961this.LookupMembersWithFallback(lookupResult, expr.Type, WellKnownMemberNames.Indexer, arity: 0, useSiteInfo: ref useSiteInfo, options: lookupOptions); 10276var argType = argument.Type; 10282Debug.Assert(receiver.Type is not null); 10289var receiverPlaceholder = new BoundImplicitIndexerReceiverPlaceholder(receiver.Syntax, isEquivalentToThisReference: receiver.IsEquivalentToThisReference, receiver.Type) { WasCompilerGenerated = true }; 10298Debug.Assert(indexerOrSliceAccess.Type is not null); 10308indexerOrSliceAccess.Type); 10522Debug.Assert(receiverPlaceholder.Type is not null); 10523if (TryLookupLengthOrCount(syntax, receiverPlaceholder.Type, lookupResult, out var lengthOrCountProperty, diagnostics)) 10882Debug.Assert(node.ReceiverOpt!.Type is not null); // extensions are only considered on member access 10913var substituted = (MethodSymbol?)extensionMember.GetReducedAndFilteredSymbol(typeArguments, receiver.Type, Compilation, checkFullyInferred: true); 10919else if (m.ReduceExtensionMethod(receiver.Type, Compilation) is { } reduced) 11098Debug.Assert(node.ReceiverOpt!.Type is not null); // extensions are only considered on member access 11124var substituted = (MethodSymbol?)extensionMember.GetReducedAndFilteredSymbol(typeArguments, receiver.Type, Compilation, checkFullyInferred: true); 11373var receiverType = receiver.Type; 11382var accessType = access.Type; 11518var receiverType = receiver.Type; 11549var receiverType = receiver.Type;

259((object?)expression.Type == null || !expression.Type.IsVoidType()))

219Debug.Assert(unconvertedInterpolatedString.Type?.SpecialType == SpecialType.System_String); 245Debug.Assert(unconvertedInterpolatedString.Parts.All(static part => part.Type is null or { SpecialType: SpecialType.System_String })); 259if (unconvertedInterpolatedString.Type.IsErrorType() || haveErrors || canLowerToStringConcatenation(parts)) 264return BindUnconvertedInterpolatedExpressionToFactory(unconvertedInterpolatedString, parts, (NamedTypeSymbol)unconvertedInterpolatedString.Type, factoryMethod: "Format", unconvertedInterpolatedString.Type, diagnostics); 272unconvertedInterpolatedString.Type, 304fillin.Value.Type?.SpecialType != SpecialType.System_String || 367unconvertedSource.Type, 397if (value.Type?.TypeKind == TypeKind.Dynamic) 433&& unconvertedInterpolatedString.Parts.All(p => p is not BoundStringInsert { Value.Type.TypeKind: TypeKind.Dynamic }); 436=> parts.All(p => p is BoundLiteral or BoundStringInsert { Value.Type.SpecialType: SpecialType.System_String, Alignment: null, Format: null }); 536expression.Type, 597unconvertedInterpolatedString.Type, 684if (value.Type is not null) 860if (insert.Value.Type is null) 887Debug.Assert(part is BoundLiteral { Type: { SpecialType: SpecialType.System_String }, ConstantValueOpt.IsString: true }); 955argumentsBuilder.Add(boundLiteral.Update(ConstantValue.Create(literalText), boundLiteral.Type));

285else if ((object)argument.Type == null && !argument.HasAnyErrors) 296else if (argument.Type.IsVoidType()) 350if ((object)boundExpression.Type != null && boundExpression.Type.IsDynamic()) 378else if (boundExpression.Type?.Kind == SymbolKind.FunctionPointerType) 565Debug.Assert(receiver.Type is not null); 566Error(diagnostics, ErrorCode.ERR_CannotDynamicInvokeOnExpression, receiver.Syntax, receiver.Type); 617Debug.Assert((object?)arg.Type != null); 620Error(diagnostics, ErrorCode.ERR_BadDynamicMethodArg, arg.Syntax, arg.Type); 855Debug.Assert(methodGroup.ReceiverOpt != null && (object)methodGroup.ReceiverOpt.Type != null); 857Error(diagnostics, ErrorCode.ERR_BadArgTypeDynamicExtension, syntax, methodGroup.ReceiverOpt.Type, methodGroup.Name); 1084if (!call.HasAnyErrors && call.ReceiverOpt != null && (object)call.ReceiverOpt.Type != null && !call.Method.GetIsNewExtensionMember()) 1089if (call.ReceiverOpt.Type.IsRestrictedType() && !call.Method.ContainingType.IsInterface && !TypeSymbol.Equals(call.Method.ContainingType, call.ReceiverOpt.Type, TypeCompareKind.ConsiderEverything2)) 1091SymbolDistinguisher distinguisher = new SymbolDistinguisher(compilation, call.ReceiverOpt.Type, call.Method.ContainingType); 1107(object)dynInvoke.Expression.Type != null && 1108dynInvoke.Expression.Type.IsRestrictedType()) 1112Error(diagnostics, ErrorCode.ERR_BadDynamicMethodArg, dynInvoke.Expression.Syntax, dynInvoke.Expression.Type); 1197case BoundUnconvertedSwitchExpression { Type: { } naturalType } switchExpr: 1416if (receiver is BoundValuePlaceholderBase || receiver?.Type is null or { IsReferenceType: true }) 1918receiver.Type.IsValueType && 1981!(d.Arguments is [ParameterSymbol shadowedParameter] && shadowedParameter.Type.Equals(typeOrValue.Data.ValueExpression.Type, TypeCompareKind.AllIgnoreOptions))) // If the type and the name match, we would resolve to the same type rather than a value at the end. 2036var type = expr.Type as NamedTypeSymbol; 2090var methodContainer = (object)receiver != null && (object)receiver.Type != null 2091? receiver.Type 2331var methodContainer = expr.Type ?? this.ContainingType; 2525RoslynDebug.Assert(boundExpression.Type is FunctionPointerTypeSymbol); 2527var funcPtr = (FunctionPointerTypeSymbol)boundExpression.Type;

65Debug.Assert(left.Type is { }); 68var placeholder = new BoundValuePlaceholder(right.Syntax, left.HasDynamicType() ? left.Type : right.Type).MakeCompilerGenerated(); 69var finalDynamicConversion = this.Compilation.Conversions.ClassifyConversionFromExpression(placeholder, left.Type, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 71var conversion = (BoundConversion)CreateConversion(node, placeholder, finalDynamicConversion, isCast: true, conversionGroupOpt: null, left.Type, diagnostics); 80left.Type, 81right.Type, 89left.Type, 262var leftType = left.Type; 333var leftType = left.Type; 375var leftType = left.Type; 425var leftType = left.Type; 753TypeSymbol type = operand.Type; 781Debug.Assert((object)left.Type != null && left.Type.IsDynamic() || (object)right.Type != null && right.Type.IsDynamic()); 805Error(diagnostics, ErrorCode.ERR_InvalidDynamicCondition, node.Left, left.Type, kind == BinaryOperatorKind.LogicalAnd ? "false" : "true"); 811Debug.Assert(left.Type is not TypeParameterSymbol); 927TypeSymbol leftType = left.Type; 928TypeSymbol rightType = right.Type; 963Debug.Assert(right.Type.SpecialType == SpecialType.System_String); 964var stringConstant = FoldBinaryOperator(node, BinaryOperatorKind.StringConcatenation, left, right, right.Type, diagnostics); 965return new BoundBinaryOperator(node, BinaryOperatorKind.StringConcatenation, BoundBinaryOperator.UncommonData.UnconvertedInterpolatedStringAddition(stringConstant), LookupResultKind.Empty, left, right, right.Type); 1165TypeSymbol leftType = left.Type; 1166TypeSymbol rightType = right.Type; 1276(object)left.Type != null && left.Type.TypeKind == TypeKind.Delegate) 1280var conversion = this.Conversions.ClassifyConversionFromExpression(right, left.Type, isChecked: CheckOverflowAtRuntime, ref discardedUseSiteInfo); 1282GenerateImplicitConversionError(diagnostics, right.Syntax, conversion, right, left.Type); 1304case (BoundKind.DefaultLiteral, _) when right.Type is TypeParameterSymbol: 1305Debug.Assert(!right.Type.IsReferenceType); 1306Error(diagnostics, ErrorCode.ERR_AmbigBinaryOpsOnUnconstrainedDefault, node, operatorToken.Text, right.Type); 1308case (_, BoundKind.DefaultLiteral) when left.Type is TypeParameterSymbol: 1309Debug.Assert(!left.Type.IsReferenceType); 1310Error(diagnostics, ErrorCode.ERR_AmbigBinaryOpsOnUnconstrainedDefault, node, operatorToken.Text, left.Type); 1329case LookupResultKind.OverloadResolutionFailure when operatorToken.Kind() is SyntaxKind.PlusToken && isReadOnlySpanOfByte(left.Type) && isReadOnlySpanOfByte(right.Type): 1396if ((object)left.Type != null && left.Type.SpecialType == SpecialType.System_Boolean && 1397(object)right.Type != null && right.Type.SpecialType == SpecialType.System_Boolean) 1399var constantValue = FoldBinaryOperator(node, kind | BinaryOperatorKind.Bool, left, right, left.Type, diagnostics); 1403resultKind: LookupResultKind.Viable, left, right, type: left.Type, hasErrors: constantValue != null && constantValue.IsBad); 1491var operandPlaceholder = new BoundValuePlaceholder(resultLeft.Syntax, resultLeft.Type).MakeCompilerGenerated(); 1494var conversion = this.Conversions.ClassifyConversionFromType(resultLeft.Type, trueFalseParameterType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 1551var type = left.Type; 1568if (left.Type is not null) 1570var operandPlaceholder = new BoundValuePlaceholder(left.Syntax, left.Type).MakeCompilerGenerated(); 1608var operandPlaceholder = new BoundValuePlaceholder(left.Syntax, left.Type).MakeCompilerGenerated(); 1611implicitConversion = this.Conversions.ClassifyConversionFromType(operandPlaceholder.Type, parameterType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 2034if (left.Type is null && right.Type is null) 2271(object)operand.Type != null && 2272(operand.Type.SpecialType == SpecialType.System_UInt64 || isNuint(operand.Type))) 2324operand.Type is null) // GetUserDefinedOperators performs this check too, let's optimize early 2546return left.Type; 2549return right.Type; 2613BinaryOperatorKind newKind = kind.Operator().WithType(newLeftOperand.Type!.SpecialType); 3166var operandType = operand.Type; 3316var operandType = operand.Type; 3362Debug.Assert(operand.Type is not null); 3368operand.Type, 3404var operandType = operand.Type; 3550Debug.Assert(operand.Type is not null); 3935var operandType = operand.Type as PointerTypeSymbol; 3990TypeSymbol operandType = operand.Type; 4069if (receiver.Type.IsReferenceType) 4195if (isOperandNullOrNew || operand.Type?.IsErrorType() == true) 4223type: operand.Type!); 4272var underlyingType = operand.Type.GetEnumUnderlyingType()!; 4631if ((object)operand.Type == null && !operand.IsLiteralNull()) 4690if ((object)operand.Type == null) 4701var convertedExpression = BindExpressionForPattern(operand.Type, node.Right, ref hasErrors, isPatternDiagnostics, out var constantValueOpt, out var wasExpression, out _); 4708node.Right, convertedExpression, constantValueOpt ?? ConstantValue.Bad, operand.Type, convertedExpression.Type ?? operand.Type, hasErrors) 4728if (operandHasErrors || IsOperatorErrors(node, operand.Type, typeExpression, diagnostics)) 4749operand.Type.IsVoidType()) 4779var operandType = operand.Type; 5179if ((object)operand.Type == null) 5241Debug.Assert(operand.Type is null); 5242operandPlaceholder = new BoundValuePlaceholder(operand.Syntax, operand.Type).MakeCompilerGenerated(); 5256var operandType = operand.Type; 5289operandPlaceholder = new BoundValuePlaceholder(operand.Syntax, operand.Type).MakeCompilerGenerated(); 5468TypeSymbol optLeftType = leftOperand.Type; // "A" 5469TypeSymbol optRightType = rightOperand.Type; // "B" 5644TypeSymbol leftType = leftOperand.Type; 5662if (underlyingRightConversion.Exists && rightOperand.Type?.IsDynamic() != true) 5803TypeSymbol trueType = trueExpr.Type; 5804TypeSymbol falseType = falseExpr.Type;

25TypeSymbol? expressionType = expression.Type; 38Debug.Assert(expression.Type is { }); 39BoundPattern pattern = BindPattern(node.Pattern, expression.Type, permitDesignations: true, hasErrors, diagnostics, underIsPattern: true); 67Debug.Assert(expression.Type is object); 68diagnostics.Add(ErrorCode.ERR_IsPatternImpossible, node.Location, expression.Type); 85Debug.Assert(expression.Type is object); 86diagnostics.Add(ErrorCode.WRN_IsPatternAlways, node.Location, expression.Type); 260Debug.Assert(indexerAccess.Type is not null); 261sliceType = indexerAccess.Type; 334Debug.Assert(indexerAccess!.Type is not null); 335elementType = indexerAccess.Type; 439var convertedType = convertedExpression.Type ?? inputType; 527Debug.Assert(expression is { Kind: BoundKind.TypeExpression, Type: { } }); 528hasErrors |= CheckValidPatternType(patternExpression, inputType, expression.Type, diagnostics: diagnostics); 590if (convertedExpression.Type is null && constantValueOpt != ConstantValue.Null) 631RoslynDebug.Assert(expression.Type is { }); 632ConstantValue match = ExpressionOfTypeMatchesPatternType(Conversions, inputType, expression.Type, ref useSiteInfo, out _, operandConstantValue: null); 664if (expression.Type?.SpecialType == SpecialType.System_String && inputType.IsSpanOrReadOnlySpanChar()) 719(conversion.ConversionKind == ConversionKind.NoConversion && convertedExpression.Type?.IsErrorType() == true)) 1645var type = value.Type ?? inputType;

300Debug.Assert(state.fromExpression.Type is { }); 303ImmutableArray.Create(state.fromExpression), state.fromExpression.Type); 749else if (!yExpression.HasAnyErrors && yExpression.Type!.IsVoidType()) 751Error(d, ErrorCode.ERR_QueryRangeVariableAssignedBadValue, errorLocation, yExpression.Type!); 752Debug.Assert(yExpression.Type is { }); 753yExpression = new BoundBadExpression(yExpression.Syntax, LookupResultKind.Empty, ImmutableArray<Symbol?>.Empty, ImmutableArray.Create(yExpression), yExpression.Type); 814field2Value = new BoundBadExpression(field2Value.Syntax, LookupResultKind.Empty, ImmutableArray<Symbol?>.Empty, ImmutableArray.Create(field2Value), field2Value.Type, true); 834return e.Type ?? CreateErrorType(); 939Debug.Assert(receiver.Type is object || ultimateReceiver.Type is null); 940if ((object?)ultimateReceiver.Type == null) 974if (ultimateReceiver.Type.TypeKind == TypeKind.TypeParameter) 977Error(diagnostics, ErrorCode.ERR_BadSKunknown, ultimateReceiver.Syntax, ultimateReceiver.Type, MessageID.IDS_SK_TYVAR.Localize()); 985else if (receiver.Type!.IsVoidType())

45if (instanceArgument.Type.IsDynamic()) 52else if (ImplementsStandardQueryInterface(instanceArgument.Type, name, ref useSiteInfo)) 57new object[] { instanceArgument.Type, name }, 60else if (fromClause != null && fromClause.Type == null && HasCastToQueryProvider(instanceArgument.Type, ref useSiteInfo)) 65new object[] { instanceArgument.Type, name, fromClause.Identifier.ValueText }, 73new object[] { instanceArgument.Type, name }, 238TypeSymbol receiverType = receiver?.Type;

407var type = boundExpr.Type; 759Debug.Assert(expr.Type is object); 760Debug.Assert(expr.Type.IsRefLikeType || hasAwait); // pattern dispose lookup is only valid on ref structs or asynchronous usings 1022TypeSymbol initializerType = initializerOpt?.Type; 1232TypeSymbol initializerType = initializerOpt.Type; 1248elementType = ((BoundAddressOfOperator)initializerOpt).Operand.Type; 1322if (initializer.Type.IsVoidType()) 1342additionalDiagnostics.Add(ErrorCode.WRN_PatternBadSignature, initializer.Syntax.Location, initializer.Type, "fixed", patternMethodSymbol); 1459var inferredType = op2.Type; 1485if (op1.Type is { } lhsType && !lhsType.IsErrorType()) 1533type = op1.Type; 1554Debug.Assert(op1.Type is { }); 1587Debug.Assert(leftEscape.Equals(rightEscape) || op1.Type.IsRefLikeOrAllowsRefLikeType()); 1622if (!hasErrors && op1.Type.IsRefLikeOrAllowsRefLikeType()) 1853Debug.Assert((object)receiver.Type != null); 1854return receiver.Type; 1980this.Conversions.ClassifyConversionFromType(expression.Type, targetType, isChecked: CheckOverflowAtRuntime, ref useSiteInfo); 2012expression.Type, 2472var sourceType = operand.Type; 3078hasErrors |= arg.HasErrors || ((object)arg.Type != null && arg.Type.IsErrorType()); 3153if ((object)arg?.Type != null && arg.Type.IsVoidType()) 3217&& TypeSymbol.Equals(argument.Type, this.GetCurrentReturnType(out unusedRefKind), TypeCompareKind.ConsiderEverything2)) 3220Error(diagnostics, ErrorCode.ERR_BadAsyncReturnExpression, argument.Syntax, returnType, argument.Type); 3554else if (expression.Type?.SpecialType == SpecialType.System_Void)

1507receiver = new BoundBadExpression(receiver.Syntax, LookupResultKind.Ambiguous, ImmutableArray<Symbol>.Empty, ImmutableArray.Create(receiver), receiver.Type, hasErrors: true).MakeCompilerGenerated(); 1516Error(diagnostics, ErrorCode.ERR_NoSuchMemberOrExtension, right, receiver.Type, plainName); 1517receiver = new BoundBadExpression(receiver.Syntax, LookupResultKind.Empty, ImmutableArray<Symbol>.Empty, childBoundNodes: [receiver], receiver.Type, hasErrors: true).MakeCompilerGenerated();

85TypeSymbol leftType = left.Type; 86TypeSymbol rightType = right.Type; 111return new TupleBinaryOperatorInfo.Single(binary.Left.Type, binary.Right.Type, binary.OperatorKind, binary.Method, binary.ConstrainedToType, 183Debug.Assert((object)left.Type != null && left.Type.IsDynamic() || (object)right.Type != null && right.Type.IsDynamic()); 205left = GiveTupleTypeToDefaultLiteralIfNeeded(left, right.Type); 206right = GiveTupleTypeToDefaultLiteralIfNeeded(right, left.Type); 217Debug.Assert((object)left.Type != null || left.Kind == BoundKind.TupleLiteral); 218Debug.Assert((object)right.Type != null || right.Kind == BoundKind.TupleLiteral); 247bool leftNullable = left.Type?.IsNullableType() == true; 248bool rightNullable = right.Type?.IsNullableType() == true; 356TypeSymbol type = expr.Type; 383TypeSymbol tupleType = expr.Type.StrippedType();

20var receiverType = receiver.Type;

407Debug.Assert(variableAccess.Type!.Equals(input.Type, TypeCompareKind.AllIgnoreOptions) || variableAccess.Type.IsErrorType()); 500Debug.Assert(constant.Value.Type is not null || constant.HasErrors); 501output = input = constant.Value.Type is { } type ? MakeConvertToType(input, constant.Syntax, type, isExplicitTest: false, tests) : input; 710var type = rel.Value.Type ?? input.Type;

556(builder.ElementType.IsPointerOrFunctionPointer() && collectionExpr.Type.IsArray()) || 557(builder.ElementType.IsNullableType() && builder.ElementType.GetMemberTypeArgumentsNoUseSiteDiagnostics().Single().IsErrorType() && collectionExpr.Type.IsArray())); 593(collectionConversionClassification.Kind == ConversionKind.ExplicitReference && collectionExpr.Type.SpecialType == SpecialType.System_String)); 661Debug.Assert(collectionType.Equals(collectionExpr.Type, TypeCompareKind.AllIgnoreOptions)); // Should not create an Identity conversion that changes type. 700else if (collectionExpr.Type.SpecialType == SpecialType.System_String && builder.CollectionType.SpecialType == SpecialType.System_Collections_IEnumerable) 718TypeSymbol collectionExprType = collectionExpr.Type; 795TypeSymbol collectionExprType = collectionExpr.Type; 834if (!isAsync && collectionExpr.Type?.HasInlineArrayAttribute(out _) == true && collectionExpr.Type.TryGetPossiblyUnsupportedByLanguageInlineArrayElementField() is FieldSymbol elementField) 865diagnostics.Add(ErrorCode.ERR_InlineArrayForEachNotSupported, collectionExpr.Syntax.GetLocation(), collectionExpr.Type); 888builder.CollectionType = collectionExpr.Type; 905CheckInlineArrayTypeIsSupported(collectionExpr.Syntax, collectionExpr.Type, elementField.Type, diagnostics); 913diagnostics.Add(ErrorCode.ERR_InlineArrayForEachNotSupported, collectionExpr.Syntax.GetLocation(), collectionExpr.Type); 926(originalCollectionExpr.Type?.IsNullableType() == true && originalCollectionExpr.Type.StrippedType().Equals(collectionExpr.Type, TypeCompareKind.AllIgnoreOptions))); 937TypeSymbol collectionExprType = collectionExpr.Type; 977var unwrappedCollectionExprType = unwrappedCollectionExpr.Type; 1056builder.CollectionType = collectionExpr.Type; 1369getEnumeratorInfo = FindForEachPatternMethod(syntax, collectionSyntax, collectionExpr.Type, methodName, lookupResult, warningsOnly: true, diagnostics, isAsync); 1618diagnostics.Add(ErrorCode.WRN_PatternIsAmbiguous, collectionSyntax.Location, collectionExpr.Type, MessageID.IDS_Collection.Localize(),

40TypeSymbol? exprType = expr.Type;

281return placeholder.Type?.SpecialType == SpecialType.System_Int32; 562if (node.ExpressionOpt is { Type: { } } expr) 572if (node.Expression is { Type: { } } expr)

138if (expr1.Type is { } type1) 153if (expr2.Type is { } type2)

480if (method.RequiresInstanceReceiver && methodGroup.Receiver?.Type?.IsRestrictedType() == true) 511Debug.Assert((object)sourceExpression.Type == null);

104var sourceType = sourceExpression.Type; 289if (TryGetVoidConversion(sourceExpression.Type, destination, out var conversion)) 609Debug.Assert(sourceExpression == null || (object)sourceExpression.Type == (object)source); 1033Debug.Assert(sourceExpression == null || (object)sourceExpression.Type == (object)source); 1075var innerConversion = ClassifyImplicitBuiltInConversionFromExpression(innerExpression, innerExpression.Type, destination, ref useSiteInfo); 1353if (constantValue == null || (object)source.Type == null) 1363var specialSource = source.Type.GetSpecialTypeSafe(); 1419var sourceType = sourceExpression.Type; 1462source.Type is object && 1463IsNumericType(source.Type) && 1923Debug.Assert(sourceExpressionOpt == null || (object)sourceExpressionOpt.Type == sourceType); 1960conversions.ClassifyImplicitExtensionMethodThisArgConversion(s, s.Type, d.Type, ref u, isMethodGroupConversion: false), 3043if (expressionToCheck.Type is TypeSymbol typeToCheck && IsRefLikeOrAllowsRefLikeTypeImplementingVarianceCompatibleInterface(typeToCheck, targetInterfaceType, ref useSiteInfo))

288var leftType = left.Type; 294var rightType = right.Type; 326Debug.Assert((object?)left.Type != null); 328Debug.Assert((object?)right.Type != null); 348if (left.Type.SpecialType != right.Type.SpecialType) 354if (left.Type.SpecialType == SpecialType.System_Int32 || 355left.Type.SpecialType == SpecialType.System_Boolean || 356left.Type.SpecialType == SpecialType.System_String)

78TypeSymbol leftOperatorSourceOpt = left.Type?.StrippedType(); 79TypeSymbol rightOperatorSourceOpt = right.Type?.StrippedType(); 373var leftType = left.Type; 375var rightType = right.Type; 517bool isExactSubtraction = TypeSymbol.Equals(right.Type?.StrippedType(), underlying, TypeCompareKind.ConsiderEverything2); 621var leftType = left.Type; 627var rightType = right.Type; 696var leftType = left.Type as PointerTypeSymbol; 697var rightType = right.Type as PointerTypeSymbol; 712if ((object)leftType != null || (object)rightType != null || left.Type is FunctionPointerTypeSymbol || right.Type is FunctionPointerTypeSymbol) 734if ((left.Type is TypeParameterSymbol { AllowsRefLikeType: true } && right.IsLiteralNull()) || 735(right.Type is TypeParameterSymbol { AllowsRefLikeType: true } && left.IsLiteralNull())) 754this.Compilation.BuiltInOperators.GetSimpleBuiltInOperators(kind, operators, skipNativeIntegerOperators: !left.Type.IsNativeIntegerOrNullableThereof() && !right.Type.IsNativeIntegerOrNullableThereof()); 769this.Compilation.BuiltInOperators.GetUtf8ConcatenationBuiltInOperator(left.Type, operators); 780BuiltInOperators.IsValidObjectEquality(conversions, left.Type, left.IsLiteralNull(), leftIsDefault: false, right.Type, right.IsLiteralNull(), rightIsDefault: false, ref useSiteInfo) && 781((object)left.Type == null || (!left.Type.IsDelegateType() && left.Type.SpecialType != SpecialType.System_String && left.Type.SpecialType != SpecialType.System_Delegate)) && 782((object)right.Type == null || (!right.Type.IsDelegateType() && right.Type.SpecialType != SpecialType.System_String && right.Type.SpecialType != SpecialType.System_Delegate)); 792return (operand.Type is TypeParameterSymbol { AllowsRefLikeType: true }) ? Conversion.Boxing : Conversions.ClassifyConversionFromExpression(operand, objectType, isChecked: isChecked, ref useSiteInfo); 1448if (left.Type?.IsNullableType() == true || right.Type?.IsNullableType() == true) // Wouldn't be applicable to the receiver type otherwise 1590if (left.Type is not null && parameterMatchesReceiver(in candidate, 0) && isOperandApplicableToReceiver(in candidate, left, ref useSiteInfo)) 1595if (!kind.IsShift() && right.Type is not null && parameterMatchesReceiver(in candidate, 1) && isOperandApplicableToReceiver(in candidate, right, ref useSiteInfo)) 1614Debug.Assert(operand.Type is not null); 1617if (candidate.Kind.IsLifted() && operand.Type.IsNullableType()) 1620!Conversions.ConvertExtensionMethodThisArg(MakeNullable(candidate.Method.ContainingType.ExtensionParameter.Type), operand.Type, ref useSiteInfo, isMethodGroupConversion: false).Exists) 1625else if (!Conversions.ConvertExtensionMethodThisArg(candidate.Method.ContainingType.ExtensionParameter.Type, operand.Type, ref useSiteInfo, isMethodGroupConversion: false).Exists)

99var operandType = operand.Type;

83Debug.Assert(operand.Type is not null); 89if (operand.Type.IsNullableType()) // Wouldn't be applicable to the receiver type otherwise 220Debug.Assert(operand.Type is not null); 225Debug.Assert(operand.Type.IsNullableType()); 228!Conversions.ConvertExtensionMethodThisArg(MakeNullable(candidate.Method.ContainingType.ExtensionParameter.Type), operand.Type, ref useSiteInfo, isMethodGroupConversion: false).Exists) 233else if (!Conversions.ConvertExtensionMethodThisArg(candidate.Method.ContainingType.ExtensionParameter.Type, operand.Type, ref useSiteInfo, isMethodGroupConversion: false).Exists) 514this.Compilation.BuiltInOperators.GetSimpleBuiltInOperators(kind, operators, skipNativeIntegerOperators: !operand.Type.IsNativeIntegerOrNullableThereof()); 553var enumType = operand.Type; 584var pointerType = operand.Type as PointerTypeSymbol; 615if ((object)operand.Type == null) 643TypeSymbol type0 = operand.Type.StrippedType();

101if ((object?)argument.Type != null && argument.Type.IsDynamic() && (!hasRefKinds || RefKinds[i] == Microsoft.CodeAnalysis.RefKind.None))

379sb.AppendFormat("Argument types ({0})\n", string.Join(", ", from a in _arguments select a.Type)); 877if (argument.Kind == BoundKind.TupleLiteral && (object)argument.Type == null) 3306TypeSymbol source = argument.Type;

3263if ((object)node.Type != null && Conversions.HasIdentityConversion(node.Type, t)) 4724var argType = argument.Type; 4738Conversions.ClassifyImplicitExtensionMethodThisArgConversion(argument, argument.Type, parameterType, ref useSiteInfo, isMethodGroupConversion: isMethodGroupConversion) : 4739((!dynamicConvertsToAnything || !argument.Type.IsDynamic()) ?

522diagnostics.Add(ErrorCode.ERR_CollectionExpressionMissingAdd, location, receiver.Type); 662diagnostics.Add(ErrorCode.ERR_QueryNoProvider, location, receiverOpt.Type, symbol.Name); 670diagnostics.Add(ErrorCode.ERR_BadAwaitArg, location, receiverOpt.Type); 779new object[] { instanceArgument.Type, inferenceFailed.Member.Name }, 1132diagnostics.Add(ErrorCode.ERR_CollectionExpressionMissingAdd, location, receiver.Type); 1371=> argument is BoundLiteral { Type.SpecialType: SpecialType.System_String } && 1410diagnostics.Add(ErrorCode.ERR_QueryMultipleProviders, location, receiver.Type, name);

48protected TypeSymbol SwitchGoverningType => SwitchGoverningExpression.Type; 380var switchGoverningType = switchGoverningExpression.Type; 442Debug.Assert((object)switchGoverningExpression.Type == null || switchGoverningExpression.Type.IsVoidType());

156var type = @case.Value.Type; 193Debug.Assert(inputExpression.Type is not null); 204Debug.Assert(inputExpression.Type is not null); 205return inputExpression.Type; 211if (switchGoverningExpression.Type == (object?)null || switchGoverningExpression.Type.IsVoidType())

120if (expressionOpt.Type is not null) 122CheckRestrictedTypeInAsyncMethod(originalBinder.ContainingMemberOrLambda, expressionOpt.Type, diagnostics, expressionOpt.Syntax); 189TypeSymbol? type = fromExpression ? expressionOpt!.Type : declarationTypeOpt; 294(fromExpression ? expressionOpt!.Type : declarationTypeOpt)!.ContainingModule != originalBinder.Compilation.SourceModule)

14NarrowedType.Equals(Value.Type, TypeCompareKind.AllIgnoreOptions));

57return arrayAccess.Expression.Type; 61return arrayAccess.Expression.Type;

193var f = ValueSetFactory.ForType(input.Type);

88return this.Type is null; 145=> Type?.GetITypeSymbol(TopLevelNullability.FlowState.ToAnnotation());

126return node.Type is { }; 131var type = node.Type; 146if (expr.Type is { } type) 264TypeSymbol? receiverType = expressionOpt.Type;

16Debug.Assert(InvokedExpression.Type is FunctionPointerTypeSymbol); 17return (FunctionPointerTypeSymbol)InvokedExpression.Type;

18Debug.Assert(Argument.Type is 33if (Argument.Type.Name == "Range") 62Debug.Assert(((NamedTypeSymbol)Type).TypeArgumentsWithAnnotationsNoUseSiteDiagnostics[0].Equals(Expression.Type?.TryGetInlineArrayElementField()?.TypeWithAnnotations ?? default, TypeCompareKind.ConsiderEverything)); 70Debug.Assert(Type.Equals(Expression.Type?.TryGetInlineArrayElementField()?.Type, TypeCompareKind.ConsiderEverything));

111return expression?.Type?.IsErrorType() == true;

15var leftType = LeftOperand.Type; 22return nullableUnderlying.Equals(RightOperand.Type);

14NarrowedType.Equals(Value.Type, TypeCompareKind.AllIgnoreOptions));

644public static BoundDagTemp ForOriginalInput(BoundExpression expr) => new BoundDagTemp(expr.Syntax, expr.Type!, source: null);

21RoslynDebug.Assert(this.Type is { }, $"Unexpected null type in {this.GetType().Name}"); 22return this.Type; 155=> (Type is null) ? FormattableStringFactory.Create("stackalloc {0}[{1}]", ElementType, Count.WasCompilerGenerated ? null : Count.Syntax.ToString()) : base.Display; 161=> (Type is null) ? MessageID.IDS_FeatureSwitchExpression.Localize() : base.Display;

386expression.Type?.SetUnknownNullabilityForReferenceTypes();

54if (addressKind == AddressKind.ReadOnly && !expression.Type.IsValueType && peVerifyCompatEnabled) 68var type = expression.Type; 229if (receiver?.Type.IsValueType == true)

41Debug.Assert(!expression.Type.IsReferenceType); 42Debug.Assert(!expression.Type.IsValueType || expression.Type.IsNullableType()); 65Debug.Assert(expression.Type.IsValueType || IsAnyReadOnly(addressKind), "'this' is readonly in classes"); 67if (expression.Type.IsValueType) 102Debug.Assert(operand.Type.IsPointerType()); 134var type = expression.Type; 331var value = this.AllocateTemp(expression.Type, expression.Syntax); 372if (!receiver.Type.IsReferenceType) 389TreatLongsAsNative(index.Type.PrimitiveTypeCode); 403if (((ArrayTypeSymbol)arrayAccess.Expression.Type).IsSZArray) 411_builder.EmitArrayElementAddress(_module.Translate((ArrayTypeSymbol)arrayAccess.Expression.Type), 504var receiverType = receiver.Type; 524EmitBox(receiver.Type, receiver.Syntax);

225TypeSymbol type = init.Type.EnumUnderlyingTypeOrSelf();

73Debug.Assert((operand.Type.IsArray()) && 139var fromType = conversion.Operand.Type; 214var fromType = conversion.Operand.Type; 230if (!conversion.Operand.Type.IsVerifierReference()) 232EmitBox(conversion.Operand.Type, conversion.Operand.Syntax); 262if (!conversion.Operand.Type.IsVerifierReference()) 264EmitBox(conversion.Operand.Type, conversion.Operand.Syntax); 290var fromType = conversion.Operand.Type; 337EmitSymbolToken(receiver.Type, receiver.Syntax); 343if (!receiver.Type.IsVerifierReference()) 345EmitBox(receiver.Type, receiver.Syntax);

52if ((object)expression.Type == null || 53(expression.Type.SpecialType != SpecialType.System_Decimal && 54!expression.Type.IsNullableType())) 56EmitConstantExpression(expression.Type, constantValue, used, expression.Syntax); 374EmitDefaultValue(node.Type, used, node.Syntax); 409var receiverType = receiver.Type; 522Debug.Assert(receiver.Type.IsNullableType()); 680EmitSymbolToken(expression.Operand.Type, expression.Operand.Syntax); 730Debug.Assert(refKind is RefKind.In || argument.Type.IsDynamic() || argument is BoundFieldAccess { FieldSymbol.RefKind: not RefKind.None }, "passing args byref should not clone them into temps"); 803EmitLoadIndirect(expression.Type, expression.Syntax); 812var meth = expression.MethodOpt ?? receiver.Type.DelegateInvokeMethod(); 1025if (((ArrayTypeSymbol)arrayAccess.Expression.Type).IsSZArray) 1112_builder.EmitArrayElementLoad(_module.Translate((ArrayTypeSymbol)arrayAccess.Expression.Type), arrayAccess.Expression.Syntax); 1143if (!field.IsVolatile && !field.IsStatic && fieldAccess.ReceiverOpt.Type.IsVerifierValue() && field.RefKind == RefKind.None) 1182if (fieldType.IsValueType && (object)fieldType == (object)receiver.Type) 1238if (receiver == null || !receiver.Type.IsValueType) 1249EmitSymbolToken(receiver.Type, receiver.Syntax); 1278if (!receiver.Type.IsVerifierValue()) 1330var type = expr.Type; 1521if (receiver.Type.IsTypeParameter()) 1526Debug.Assert(receiver.Type.IsVerifierReference(), "this is not a reference"); 1656Debug.Assert(TypeSymbol.Equals(method.ContainingType, receiver.Type, TypeCompareKind.ConsiderEverything2)); 1691EmitSymbolToken(receiver.Type, receiver.Syntax); 1858var receiverType = receiver.Type; 1944var receiverType = receiver.Type; 2004Debug.Assert(receiver.Type.IsVerifierReference()); 2015Debug.Assert(receiver.Type.IsVerifierReference()); 2035EmitSymbolToken(receiver.Type, receiver.Syntax); 2050var receiverType = receiver.Type; 2113var receiverType = receiver.Type; 2630var rightType = right.Type; 2686if (left.Kind == BoundKind.ArrayAccess && left.Type.TypeKind == TypeKind.TypeParameter && !left.Type.IsValueType) 2710EmitSymbolToken(target.Type, target.Syntax); 3089assignmentOperator.Left.Type, 3136var arrayType = (ArrayTypeSymbol)array.Type; 3150EmitIndirectStore(expression.Type, expression.Syntax); 3155EmitIndirectStore(expression.Type, expression.Syntax); 3161EmitIndirectStore(expression.Type, expression.Syntax); 3173EmitIndirectStore(expression.Type, expression.Syntax); 3178EmitIndirectStore(expression.Type, expression.Syntax); 3424Debug.Assert((object)operand.Type != null); 3425if (!operand.Type.IsVerifierReference()) 3428EmitBox(operand.Type, operand.Syntax); 3451var operandType = operand.Type; 3945if (!(expr.Type.IsInterfaceType() || expr.Type.IsDelegateType())) 3947return expr.Type; 3992return expr.Type; 4063temp = AllocateTemp(ptrInvocation.InvokedExpression.Type, ptrInvocation.Syntax);

305Debug.Assert(binOp.Left.Type.SpecialType == SpecialType.System_Boolean); 306Debug.Assert(binOp.Right.Type.SpecialType == SpecialType.System_Boolean); 314Debug.Assert(binOp.Left.Type.SpecialType == SpecialType.System_Boolean); 315Debug.Assert(binOp.Right.Type.SpecialType == SpecialType.System_Boolean); 331Debug.Assert(binOp.Left.Type.SpecialType == SpecialType.System_Boolean); 332Debug.Assert(binOp.Right.Type.SpecialType == SpecialType.System_Boolean); 337Debug.Assert(binOp.Left.Type.SpecialType == SpecialType.System_Boolean); 338Debug.Assert(binOp.Right.Type.SpecialType == SpecialType.System_Boolean); 343Debug.Assert(binOp.Left.Type.SpecialType == SpecialType.System_Boolean); 344Debug.Assert(binOp.Right.Type.SpecialType == SpecialType.System_Boolean); 375if (comparand is BoundConversion { Type.SpecialType: SpecialType.System_Object, ConversionKind: ConversionKind.Boxing, Operand.Type: TypeParameterSymbol { AllowsRefLikeType: true } } && 458var comparandType = comparand.Type; 472var comparandType = comparand.Type; 496Debug.Assert(condition.Type.SpecialType == SpecialType.System_Boolean); 531Debug.Assert(condition.Type.SpecialType == SpecialType.System_Boolean); 654enumType = expression.Left.Type; 659Debug.Assert(TypeSymbol.Equals(expression.Left.Type, expression.Right.Type, TypeCompareKind.ConsiderEverything2)); 664enumType = expression.Right.Type; 786return IsUnsigned(Binder.GetEnumPromotedType(op.Left.Type.GetEnumUnderlyingType().SpecialType)); 789return IsUnsigned(Binder.GetEnumPromotedType(op.Right.Type.GetEnumUnderlyingType().SpecialType));

178var exprType = thrown.Type; 252var nonConstType = nonConstOp.Type; 530var receiverType = receiver.Type; 589Debug.Assert((object)operand.Type != null); 590if (!operand.Type.IsVerifierReference()) 593EmitBox(operand.Type, operand.Syntax); 610var conditionType = condition.Type; 925_module.Translate(expressionOpt.Type, boundReturnStatement.Syntax, _diagnostics.DiagnosticBag); 1150if (!exceptionSourceOpt.Type.IsVerifierReference()) 1152Debug.Assert(exceptionSourceOpt.Type.IsTypeParameter()); // only expecting type parameters 1154EmitSymbolToken(exceptionSourceOpt.Type, exceptionSourceOpt.Syntax); 1181Debug.Assert(!left.ReceiverOpt.Type.IsTypeParameter()); 1192var temp = AllocateTemp(exceptionSource.Type, exceptionSource.Syntax); 1259Debug.Assert((object)dispatch.Expression.Type != null); 1260Debug.Assert(dispatch.Expression.Type.IsValidV6SwitchGoverningType() || dispatch.Expression.Type.IsSpanOrReadOnlySpanChar()); 1263Debug.Assert(!dispatch.Expression.Type.IsNullableType()); 1282Debug.Assert((object)expression.Type != null && 1283(expression.Type.IsValidV6SwitchGoverningType() || expression.Type.IsSpanOrReadOnlySpanChar())); 1328temp = AllocateTemp(expression.Type, expression.Syntax); 1335expression.Type.SpecialType == SpecialType.System_String || expression.Type.IsSpanOrReadOnlySpanChar()); 1338if (expression.Type.SpecialType == SpecialType.System_String || expression.Type.IsSpanOrReadOnlySpanChar()) 1342this.EmitStringSwitchJumpTable(switchCaseLabels, fallThroughLabel, key, expression.Syntax, expression.Type); 1346this.EmitLengthBasedStringSwitchJumpTable(lengthBasedSwitchStringJumpTableOpt, fallThroughLabel, key, expression.Syntax, expression.Type); 1351_builder.EmitIntegerSwitchJumpTable(switchCaseLabels, fallThroughLabel, key, expression.Type.EnumUnderlyingTypeOrSelf().PrimitiveTypeCode, expression.Syntax);

609node.Type); 950right.Type.IsVerifierValue() && 973node.Left.Type.Equals(node.Right.Type, TypeCompareKind.AllIgnoreOptions) || 1029left.Type.Equals(((PointerTypeSymbol)right.Type).PointedAtType, TypeCompareKind.AllIgnoreOptions); 1046Debug.Assert(lhs.Type.IsValueType, "'this' is assignable only in structs"); 1204var receiverType = receiver.Type; 1239var receiverType = receiver.Type; 1357if (receiver.Type.IsTypeParameter()) 1366if (receiver.Type.IsValueType && ( 1667PushEvalStack(new BoundDefaultExpression(node.Syntax, node.Operand.Type), ExprContext.Value);

2251Debug.Assert(result is { Type: not null } || runtimeAwaitCall is { Type: not null }); 2252var returnType = result?.Type ?? runtimeAwaitCall!.Type;

2065type = boundExpr.Type; 2184convertedType = highestBoundExpr.Type; 2190convertedType = highestBoundExpr.Type; 2279static (TypeSymbol, NullabilityInfo) getTypeAndNullability(BoundExpression expr) => (expr.Type, expr.TopLevelNullability); 3391else if (expr.Type.IsDelegateType()) 3700var thisParam = GetThisParameter(boundNode.Type, containingType, containingMember, out resultKind); 3829symbols = OneOrMany.Create<Symbol>(new SynthesizedIntrinsicOperatorSymbol(unaryOperator.Operand.Type.StrippedType(), 3852TypeSymbol opType = increment.Operand.Type.StrippedType(); 3879((binaryOperator.Left.IsLiteralNull() && binaryOperator.Right.Type.IsNullableType()) || 3880(binaryOperator.Right.IsLiteralNull() && binaryOperator.Left.Type.IsNullableType())) && 3894binaryOperator.Left.Type, 3895binaryOperator.Right.Type, 4105TypeSymbol type = boundNode.Type; 4629if (node.SearchExtensions && receiver.Type is { } receiverType) 4771receiverType = call.ReceiverOpt.Type; 4775receiverType = call.Arguments[0].Type; 4805MethodSymbol reduced = method.ReduceExtensionMethod(receiver.Type, Compilation); 4820MethodSymbol reduced = method.ReduceExtensionMethod(receiverOpt.Type, Compilation);

1183return (bound as BoundTupleExpression)?.Type as NamedTypeSymbol;

360TypeSymbol system_Int32 = currentHashValue.Type!; 385NamedTypeSymbol constructedEqualityComparer = equalityComparerType.Construct(valueToHash.Type);

1379Translate(optArgList.Arguments[i].Type, syntaxNodeOpt, diagnostics));

643else if ((object)node.Type == null || node.Type.SpecialType != SpecialType.System_Boolean) 1676&& node.Type.SpecialType == SpecialType.System_Boolean) 2246(object)receiverOpt.Type != null && 2247!receiverOpt.Type.IsPrimitiveRecursiveStruct()); 2664&& conv.Operand.Type!.IsNonNullableValueType());

101if (!node.Expression.Type.IsValidV6SwitchGoverningType())

1077MayRequireTrackingReceiverType(receiver.Type); 1094MayRequireTrackingReceiverType(receiverOpt.Type) && 1095!receiverOpt.Type.IsPrimitiveRecursiveStruct(); 1333if (_emptyStructTypeCache.IsEmptyStructType(node.Type)) return true; 1546if (elementAccess.Expression.Type.HasInlineArrayAttribute(out int length) && 1550int slot = MakeMemberSlot(elementAccess.Expression, elementAccess.Expression.Type.TryGetInlineArrayElementField()); 2539if (refKind != RefKind.None && ((object)method == null || method.IsExtern) && arg.Type is TypeSymbol type)

436expr.Type?.Equals(result.RValueType.Type, TypeCompareKind.AllIgnoreOptions) == true ? result.RValueType.Type : expr.Type); 572Debug.Assert(AreCloseEnough(placeholder.Type, result.RValueType.Type)); 2116receiver.Type is object; 2127TypeSymbol? nodeType = node.Type; 2163var operandType = operand.Type; 2181TypeSymbol.Equals(conv.Type, conv.Operand.Type, TypeCompareKind.IgnoreNullableModifiersForReferenceTypes): 3727Debug.Assert(AreCloseEnough(resultType.Type, node.Type)); 4627SetAnalyzedNullability(node.ImplicitReceiverOpt, new VisitResult(node.ImplicitReceiverOpt.Type, NullableAnnotation.NotAnnotated, NullableFlowState.NotNull)); 4685SetResultType(node, TypeWithState.Create(node.Type, NullableFlowState.NotNull)); 4690var resultType = TypeWithState.Create(node.Type, NullableFlowState.NotNull); 4737Debug.Assert(node.Type is object); 4738if (IsEmptyStructType(node.Type)) 4743return GetOrCreatePlaceholderSlot(node, TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated)); 5061Debug.Assert(!node.Expression.Type!.IsValueType); 5075TypeSymbol.Equals(node.Indices[0].Type, compilation.GetWellKnownType(WellKnownType.System_Range), TypeCompareKind.ConsiderEverything2)) 5394if (expr.Type is null) 5404TypeWithAnnotations.Create(expr.Type), 5418Debug.Assert(binary.Type!.SpecialType == SpecialType.System_Boolean); 5681var receiverType = conditional.Receiver.Type!; 5710if (slot > 0 && PossiblyNullableType(operand.Type)) 5780LearnFromNullTest(slot, expressionWithoutConversion.Type, ref state, markDependentSlotsNotNull: false); 5894node.Type?.ContainsErrorType() == true || 5895TypeSymbol.Equals(targetType.Type.GetNullableUnderlyingType(), node.Type, TypeCompareKind.AllIgnoreOptions)); 5901targetType = TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated); 6191if (slot > 0 && receiver.Type?.IsNullableType() == true) 6192slot = GetNullableOfTValueSlot(receiver.Type, slot, out _); 6236TypeSymbol? refResultType = node.Type?.SetUnknownNullabilityForReferenceTypes(); 6302resultType ??= node.Type?.SetUnknownNullabilityForReferenceTypes(); 7499TrackAnalyzedNullabilityThroughConversionGroup(TypeWithState.Create(argument.Type, result.RValueType.State), argument as BoundConversion, argumentNoConversion); 7617completion(TypeWithAnnotations.Create(argument.Type)); 8761if (value.Type is null || value.Type.IsDynamic() || value.ConstantValueOpt != null) 8771value.Type.HasInlineArrayAttribute(out _) == true && 8772value.Type.TryGetInlineArrayElementField() is not null) 8912if (TypeAllowsConditionalState(targetType.Type) && TypeAllowsConditionalState(operand.Type)) 9060var tupleOpt = (NamedTypeSymbol?)node.Type; 10260case BoundExpression arg when arg.Type is { TypeKind: TypeKind.Delegate }: 10374Debug.Assert(arg.Type is not null); 10375TypeSymbol argType = arg.Type; 10393Debug.Assert(arg.Type is not null); 10394TypeSymbol argType = arg.Type; 10574var rvalueResult = TypeWithState.Create(node.Type, NullableFlowState.NotNull); 10575var lvalueResult = TypeWithAnnotations.Create(node.Type, NullableAnnotation.NotAnnotated); 11073if (expr.Type is NamedTypeSymbol { IsTupleType: true } tupleType) 11404SetResultType(node.Expression, TypeWithState.Create(node.Expression.Type, ResultType.State)); 11771if (collectionExpression.Type!.SpecialType == SpecialType.System_Collections_IEnumerable) 11774targetTypeWithAnnotations = TypeWithAnnotations.Create(collectionExpression.Type); 11776else if (ForEachLoopBinder.IsIEnumerableT(collectionExpression.Type.OriginalDefinition, isAsync, compilation)) 12033var type = TypeWithAnnotations.Create(node.Type); 12550SetResultType(node, TypeWithState.Create(node.Type, node.Type?.CanContainNull() != false && node.ConstantValueOpt?.IsNull == true ? NullableFlowState.MaybeDefault : NullableFlowState.NotNull)); 12727SetResultType(expression, TypeWithState.Create(expression.Type, default)); 12761Debug.Assert(receiverOpt.Type is null || AreCloseEnough(receiverOpt.Type, resultTypeSymbol)); 12849SetResultType(node, TypeWithState.Create(node.Type, NullableFlowState.NotNull)); 12882Debug.Assert(node.Type is null || node.Type.IsErrorType() || node.Type.IsRefLikeType); 12898SetResultType(node, TypeWithState.Create(node.Type, NullableFlowState.NotNull)); 12902Debug.Assert(node.Type is not null); 12903var type = VisitArrayInitialization(node.Type, initialization, node.HasErrors);

29LearnFromAnyNullPatterns(slot, expression.Type, pattern); 279var originalInputType = node.Expression.Type; 885var originalInputType = node.Expression.Type; 955?? node.Type?.SetUnknownNullabilityForReferenceTypes();

221if (receiver.Type.IsStructType() && receiverSyntax.Span.OverlapsWith(RegionSpan))

469if (!TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 499if (receiver != this.Receiver || localScopeDepth != this.LocalScopeDepth || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 531public new TypeSymbol Type => base.Type!; 568public new TypeSymbol Type => base.Type!; 597public new TypeSymbol? Type => base.Type; 632public new TypeSymbol Type => base.Type!; 669public new TypeSymbol Type => base.Type!; 705public new TypeSymbol Type => base.Type!; 742public new TypeSymbol Type => base.Type!; 778public new TypeSymbol Type => base.Type!; 813public new TypeSymbol Type => base.Type!; 848public new TypeSymbol Type => base.Type!; 883public new TypeSymbol Type => base.Type!; 921if (refKind != this.RefKind || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 949if (expression != this.Expression || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 982if (resultKind != this.ResultKind || symbols != this.Symbols || childBoundNodes != this.ChildBoundNodes || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 1065public new TypeSymbol Type => base.Type!; 1103public new TypeSymbol Type => base.Type!; 1143public new TypeSymbol? Type => base.Type; 1180public new TypeSymbol Type => base.Type!; 1225public new TypeSymbol Type => base.Type!; 1265public new TypeSymbol Type => base.Type!; 1296public new TypeSymbol? Type => base.Type; 1339public new TypeSymbol Type => base.Type!; 1369public new TypeSymbol Type => base.Type!; 1404public new TypeSymbol Type => base.Type!; 1441public new TypeSymbol Type => base.Type!; 1475public new TypeSymbol Type => base.Type!; 1506public new TypeSymbol Type => base.Type!; 1537public new TypeSymbol Type => base.Type!; 1569public new TypeSymbol Type => base.Type!; 1601public new TypeSymbol Type => base.Type!; 1635public new TypeSymbol Type => base.Type!; 1691public new TypeSymbol Type => base.Type!; 1786public new TypeSymbol Type => base.Type!; 1826public new TypeSymbol Type => base.Type!; 1861public new TypeSymbol Type => base.Type!; 1899public new TypeSymbol Type => base.Type!; 1943if (leftOperand != this.LeftOperand || rightOperand != this.RightOperand || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 1970public new TypeSymbol? Type => base.Type; 2012public new TypeSymbol Type => base.Type!; 2050public new TypeSymbol Type => base.Type!; 2080public new TypeSymbol? Type => base.Type; 2110public new TypeSymbol Type => base.Type!; 2184public new TypeSymbol Type => base.Type!; 2224public new TypeSymbol Type => base.Type!; 2315public new TypeSymbol Type => base.Type!; 2357public new TypeSymbol Type => base.Type!; 2400public new TypeSymbol Type => base.Type!; 2437public new TypeSymbol Type => base.Type!; 2472public new TypeSymbol Type => base.Type!; 2510public new TypeSymbol Type => base.Type!; 2545public new TypeSymbol Type => base.Type!; 2580public new TypeSymbol Type => base.Type!; 2615public new TypeSymbol Type => base.Type!; 2650public new TypeSymbol Type => base.Type!; 2689public new TypeSymbol Type => base.Type!; 2731public new TypeSymbol Type => base.Type!; 2774public new TypeSymbol Type => base.Type!; 2805public new TypeSymbol? Type => base.Type; 2828public new TypeSymbol Type => base.Type!; 2862public new TypeSymbol Type => base.Type!; 2898public new TypeSymbol Type => base.Type!; 2932public new TypeSymbol Type => base.Type!; 2969public new TypeSymbol Type => base.Type!; 3007public new TypeSymbol Type => base.Type!; 3044public new TypeSymbol Type => base.Type!; 3073public new TypeSymbol? Type => base.Type; 3109public new TypeSymbol Type => base.Type!; 4317if (constantValueOpt != this.ConstantValueOpt || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 4349public new TypeSymbol Type => base.Type!; 4385public new TypeSymbol Type => base.Type!; 4420public new TypeSymbol Type => base.Type!; 4455public new TypeSymbol Type => base.Type!; 4484public new TypeSymbol? Type => base.Type; 4529public new TypeSymbol Type => base.Type!; 4576public new TypeSymbol Type => base.Type!; 4609public new TypeSymbol Type => base.Type!; 4650public new TypeSymbol Type => base.Type!; 4795if (!Symbols.SymbolEqualityComparer.ConsiderEverything.Equals(label, this.Label) || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 4956if (expression != this.Expression || switchArms != this.SwitchArms || reachabilityDecisionDag != this.ReachabilityDecisionDag || !Symbols.SymbolEqualityComparer.ConsiderEverything.Equals(defaultLabel, this.DefaultLabel) || reportedNotExhaustive != this.ReportedNotExhaustive || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 4981public new TypeSymbol Type => base.Type!; 5728public new TypeSymbol? Type => base.Type; 5751if (expression != this.Expression || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 5777public new TypeSymbol Type => base.Type!; 5813public new TypeSymbol Type => base.Type!; 5850public new TypeSymbol Type => base.Type!; 5905public new TypeSymbol Type => base.Type!; 5939public new TypeSymbol Type => base.Type!; 5976public new TypeSymbol Type => base.Type!; 6019public new TypeSymbol Type => base.Type!; 6051public new TypeSymbol Type => base.Type!; 6168public new TypeSymbol Type => base.Type!; 6215public new TypeSymbol Type => base.Type!; 6257public new TypeSymbol Type => base.Type!; 6298public new TypeSymbol? Type => base.Type; 6338public new TypeSymbol Type => base.Type!; 6416public new TypeSymbol? Type => base.Type; 6453public new TypeSymbol Type => base.Type!; 6496if (!TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 6574public new TypeSymbol? Type => base.Type; 6611if (sourceTuple != this.SourceTuple || wasTargetTyped != this.WasTargetTyped || arguments != this.Arguments || argumentNamesOpt != this.ArgumentNamesOpt || inferredNamesOpt != this.InferredNamesOpt || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 6710public new TypeSymbol Type => base.Type!; 6765public new TypeSymbol Type => base.Type!; 6818public new TypeSymbol Type => base.Type!; 6885public new TypeSymbol Type => base.Type!; 6924public new TypeSymbol Type => base.Type!; 6960public new TypeSymbol Type => base.Type!; 6993public new TypeSymbol Type => base.Type!; 7035public new TypeSymbol Type => base.Type!; 7098public new TypeSymbol Type => base.Type!; 7132public new TypeSymbol Type => base.Type!; 7163public new TypeSymbol? Type => base.Type; 7218if (!TypeSymbol.Equals(elementType, this.ElementType, TypeCompareKind.ConsiderEverything) || count != this.Count || initializerOpt != this.InitializerOpt || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 7240public new TypeSymbol Type => base.Type!; 7274public new TypeSymbol Type => base.Type!; 7319public new TypeSymbol Type => base.Type!; 7353public new TypeSymbol Type => base.Type!; 7390public new TypeSymbol Type => base.Type!; 7434public new TypeSymbol Type => base.Type!; 7488public new TypeSymbol Type => base.Type!; 7531public new TypeSymbol Type => base.Type!; 7570public new TypeSymbol Type => base.Type!; 7612public new TypeSymbol? Type => base.Type; 7656public new TypeSymbol? Type => base.Type; 7694public new TypeSymbol Type => base.Type!; 7757public new TypeSymbol Type => base.Type!; 7808if (parts != this.Parts || constantValueOpt != this.ConstantValueOpt || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 7836if (!interpolationData.Equals(this.InterpolationData) || parts != this.Parts || constantValueOpt != this.ConstantValueOpt || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 7864if (!TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 7894public new TypeSymbol Type => base.Type!; 7926public new TypeSymbol? Type => base.Type; 7979if (expression != this.Expression || pattern != this.Pattern || isNegated != this.IsNegated || reachabilityDecisionDag != this.ReachabilityDecisionDag || !Symbols.SymbolEqualityComparer.ConsiderEverything.Equals(whenTrueLabel, this.WhenTrueLabel) || !Symbols.SymbolEqualityComparer.ConsiderEverything.Equals(whenFalseLabel, this.WhenFalseLabel) || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 8579public new TypeSymbol? Type => base.Type; 8616if (expression != this.Expression || !TypeSymbol.Equals(type, this.Type, TypeCompareKind.ConsiderEverything)) 8638public new TypeSymbol? Type => base.Type; 8711public new TypeSymbol? Type => base.Type; 8809public new TypeSymbol? Type => base.Type; 8842public new TypeSymbol Type => base.Type!; 10866TypeSymbol? type = this.VisitType(node.Type); 10872TypeSymbol? type = this.VisitType(node.Type); 10933TypeSymbol? type = this.VisitType(node.Type); 10939TypeSymbol? type = this.VisitType(node.Type); 10946TypeSymbol? type = this.VisitType(node.Type); 11141TypeSymbol? type = this.VisitType(node.Type); 11559TypeSymbol? type = this.VisitType(node.Type); 11633TypeSymbol? type = this.VisitType(node.Type); 11662TypeSymbol? type = this.VisitType(node.Type); 11810TypeSymbol? type = this.VisitType(node.Type); 11947TypeSymbol? type = this.VisitType(node.Type); 11970TypeSymbol? type = this.VisitType(node.Type); 12081TypeSymbol? type = this.VisitType(node.Type); 12192TypeSymbol? type = this.VisitType(node.Type); 12198TypeSymbol? type = this.VisitType(node.Type); 12203TypeSymbol? type = this.VisitType(node.Type); 12226TypeSymbol? type = this.VisitType(node.Type); 12351TypeSymbol? type = this.VisitType(node.Type); 12465updatedNode = node.Update(receiver, node.LocalScopeDepth, node.Type); 12631updatedNode = node.Update(expression, node.Type); 12649updatedNode = node.Update(node.ResultKind, node.Symbols, childBoundNodes, node.Type); 13021updatedNode = node.Update(leftOperand, rightOperand, node.Type); 13822updatedNode = node.Update(expression, switchArms, reachabilityDecisionDag, node.DefaultLabel, node.ReportedNotExhaustive, node.Type); 13917updatedNode = node.Update(expression, node.Type); 14279updatedNode = node.Update(sourceTuple, node.WasTargetTyped, arguments, node.ArgumentNamesOpt, node.InferredNamesOpt, node.Type); 14562updatedNode = node.Update(elementType, count, initializerOpt, node.Type); 14800updatedNode = node.Update(parts, node.ConstantValueOpt, node.Type); 14817updatedNode = node.Update(node.InterpolationData, parts, node.ConstantValueOpt, node.Type); 14879updatedNode = node.Update(expression, pattern, node.IsNegated, reachabilityDecisionDag, node.WhenTrueLabel, node.WhenFalseLabel, node.Type); 15019updatedNode = node.Update(expression, node.Type); 15161new TreeDumperNode("type", node.Type, null), 15170new TreeDumperNode("type", node.Type, null), 15259new TreeDumperNode("type", node.Type, null), 15267new TreeDumperNode("type", node.Type, null), 15277new TreeDumperNode("type", node.Type, null), 15549new TreeDumperNode("type", node.Type, null), 16112new TreeDumperNode("type", node.Type, null), 16214new TreeDumperNode("type", node.Type, null), 16250new TreeDumperNode("type", node.Type, null), 16436new TreeDumperNode("type", node.Type, null), 16653new TreeDumperNode("type", node.Type, null), 16687new TreeDumperNode("type", node.Type, null), 16853new TreeDumperNode("type", node.Type, null), 17020new TreeDumperNode("type", node.Type, null), 17030new TreeDumperNode("type", node.Type, null), 17037new TreeDumperNode("type", node.Type, null), 17069new TreeDumperNode("type", node.Type, null), 17223new TreeDumperNode("type", node.Type, null),

734rewrittenSource.Type, 1082this.returnValue = returnValue = new SynthesizedLocal(containingMethod, TypeWithAnnotations.Create(valueOpt.Type), SynthesizedLocalKind.AsyncMethodReturnValue, _syntaxOpt);

379var awaiterTemp = F.SynthesizedLocal(getAwaiter.Type, syntax: node.Syntax, kind: SynthesizedLocalKind.Awaiter);

237F.Call(parameterProxy, WellKnownMember.System_Threading_CancellationToken__Equals, F.Default(parameterProxy.Type)),

110var nodeType = node.Expression.Type;

585Debug.Assert(TypeSymbol.Equals(result.Type, frameType, TypeCompareKind.ConsiderEverything2)); 700BoundExpression assignment = new BoundAssignmentOperator(syntax, left, right, left.Type); 793var assignToProxy = new BoundAssignmentOperator(syntax, left, value, value.Type); 1254rewrittenExceptionSource.Type);

118if (!node.Type.Equals(result.Type, TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)) 298if (!TypeSymbol.Equals(index.Type, _int32Type, TypeCompareKind.ConsiderEverything2)) 300index = ConvertIndex(index, arg.Type, _int32Type); 316if (!TypeSymbol.Equals(index.Type, _int32Type, TypeCompareKind.ConsiderEverything2)) 318index = ConvertIndex(index, arg.Type, _int32Type); 367if (node.Operand.IsLiteralNull() && (object)node.Operand.Type == null) 493if ((object)left.Type == null && left.IsLiteralNull()) 495left = _bound.Default(right.Type); 497if ((object)right.Type == null && right.IsLiteralNull()) 499right = _bound.Default(left.Type); 510var promotedType = PromotedType(enumOperand.Type.StrippedType().GetEnumUnderlyingType()); 563return Convert(loweredOperand, operand.Type, promotedType, isChecked, false); 700var operandType = node.Operand.Type; 709? Convert(Visit(node.Operand), node.Operand.Type, method.Parameters[0].Type, node.Checked, false) 725if (node.Operand.Type.IsNullableType()) 727return Convert(Visit(node.Operand), node.Operand.Type, node.Type, node.Checked, node.ExplicitCastInCode); 734var e1 = Convert(Visit(node.Operand), node.Operand.Type, intermediate, node.Checked, false); 740return Convert(Visit(node.Operand), node.Operand.Type, node.Type, node.Checked, node.ExplicitCastInCode); 760receiver = requiresInstanceReceiver ? nullObject : receiver.Type.IsReferenceType ? receiver : _bound.Convert(_objectType, receiver); 798var d = node.Argument.Type as NamedTypeSymbol; 819if ((object)operand.Type == null && operand.ConstantValueOpt != null && operand.ConstantValueOpt.IsNull) 880TypeSymbol lambdaParamType = node.LeftPlaceholder.Type; 881return _bound.StaticCall(WellKnownMember.System_Linq_Expressions_Expression__Coalesce_Lambda, left, right, MakeConversionLambda(leftConversion, lambdaParamType, node.LeftConversion.Type)); 1117if (node.ReceiverOpt?.Type.IsTypeParameter() == true && 1118!node.ReceiverOpt.Type.IsReferenceType) 1188var promotedType = PromotedType(arg.Type.StrippedType().GetEnumUnderlyingType()); 1190loweredArg = Convert(loweredArg, arg.Type, promotedType, isChecked, false); 1207_bound.Typeof(node.Type, _bound.WellKnownType(WellKnownType.System_Type)));

66if (e != null && (object)e.Type != null && e.Type.IsPointerOrFunctionPointer()) NoteUnsafe(e); 93!node.Indices[0].Type!.SpecialType.CanOptimizeBehavior()) 402expr.Type is TypeSymbol type &&

228Debug.Assert(TypeSymbol.Equals(expr1.Type, expr2.Type, TypeCompareKind.ConsiderEverything2)); 330if (node.Left.Type.SpecialType == SpecialType.System_Object && !IsExplicitCast(node.Left) && !(node.Left.ConstantValueOpt != null && node.Left.ConstantValueOpt.IsNull) && ConvertedHasEqual(node.OperatorKind, node.Right, out t)) 335else if (node.Right.Type.SpecialType == SpecialType.System_Object && !IsExplicitCast(node.Right) && !(node.Right.ConstantValueOpt != null && node.Right.ConstantValueOpt.IsNull) && ConvertedHasEqual(node.OperatorKind, node.Left, out t)) 356NamedTypeSymbol nt = conv.Operand.Type as NamedTypeSymbol; 447if (!conversion.Operand.Type.SpecialType.IsIntegralType() || !conversion.Type.SpecialType.IsIntegralType()) 452if (!Binder.CheckConstantBounds(conversion.Operand.Type.SpecialType, constantValue, out _)) 454Error(ErrorCode.WRN_VacuousIntegralComp, tree, conversion.Operand.Type); 612TypeSymbol from = conv.Operand.Type; 770Error(ErrorCode.WRN_NubExprIsConstBool, node, always, node.Left.Type.GetNullableUnderlyingType(), node.Left.Type); 774Error(ErrorCode.WRN_NubExprIsConstBool, node, always, node.Right.Type.GetNullableUnderlyingType(), node.Right.Type); 818Error(node.OperatorKind.IsUserDefined() ? ErrorCode.WRN_NubExprIsConstBool2 : ErrorCode.WRN_NubExprIsConstBool, node, always, node.Left.Type.GetNullableUnderlyingType(), GetTypeForLiftedComparisonWarning(node.Right)); 822Error(node.OperatorKind.IsUserDefined() ? ErrorCode.WRN_NubExprIsConstBool2 : ErrorCode.WRN_NubExprIsConstBool, node, always, node.Right.Type.GetNullableUnderlyingType(), GetTypeForLiftedComparisonWarning(node.Left)); 858if ((object)node.Type == null || !node.Type.IsNullableType()) 874return type ?? node.Type;

123Debug.Assert(receiverOpt.Type!.Equals(method.Parameters[0].Type, TypeCompareKind.IgnoreNullableModifiersForReferenceTypes));

35if ((object)expr.Type == null) 40if (expr.Type.IsDynamic()) 45if (!expr.Type.IsNullableType()) 80if ((object)expr.Type == null && expr.ConstantValueOpt == ConstantValue.Null) 85if ((object)expr.Type == null || !expr.Type.IsNullableType()) 132if (expr.Type.IsNullableType() && expr.Type.GetNullableUnderlyingType().SpecialType != SpecialType.System_Boolean)

52(object)expression.Type != null && 53!expression.Type.IsVoidType())

483rewrittenFilter = AddConditionSequencePoint(new BoundSequencePointExpression(filterClause, rewrittenFilter, rewrittenFilter.Type), filterClause, factory); 495return new BoundSequencePointExpression(original.Syntax, base.InstrumentSwitchExpressionArmExpression(original, rewrittenExpression, factory), rewrittenExpression.Type);

173Debug.Assert(condition.Type is not null); 182var local = factory.SynthesizedLocal(condition.Type, synthesizedVariableSyntax, kind: SynthesizedLocalKind.ConditionalBranchDiscriminator); 187new BoundSequencePointExpression(syntax: null!, expression: factory.Local(local), type: condition.Type) : 195condition.Type);

573Debug.Assert(invocation.Type is not null); 583if (invocation.Type.SpecialType != SpecialType.System_Void)

130if (arguments is [.., { Type: { } lastArgumentType } lastArgument] &&

308_methodValue = F.SynthesizedLocal(result.Type);

259TypeSymbol? type = node.Type; 280Debug.Assert(visited == null || visited.HasErrors || ReferenceEquals(visited.Type, node.Type) || 281visited.Type is { } && visited.Type.Equals(node.Type, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes) || 302type: visited.Type); 512Debug.Assert(value.Type is { } && (value.Type.Equals(placeholder.Type, TypeCompareKind.AllIgnoreOptions) || value.HasErrors)); 577Debug.Assert(node.Type is { }); 578return BadExpression(node.Syntax, node.Type, ImmutableArray.Create(node)); 831var indexType = VisitType(node.Indices[0].Type); 843Debug.Assert(node.Expression.Type is { TypeKind: TypeKind.Array }); 844var elementType = ((ArrayTypeSymbol)node.Expression.Type).ElementTypeWithAnnotations; 1065Debug.Assert(eventAccess.ReceiverOpt.Type is { }); 1066return !eventAccess.ReceiverOpt.Type.IsValueType || CanBePassedByReference(eventAccess.ReceiverOpt); 1076Debug.Assert(fieldAccess.ReceiverOpt.Type is { }); 1077return !fieldAccess.ReceiverOpt.Type.IsValueType || CanBePassedByReference(fieldAccess.ReceiverOpt); 1153Debug.Assert(Conversions.IsValidExtensionMethodThisArgConversion(this._compilation.Conversions.ClassifyConversionFromType(receiver.Type, extensionParameter.Type, isChecked: false, ref discardedUseSiteInfo)));

173receiver.Type?.IsReferenceType == false && 746if (input.Type.IsValidV6SwitchGoverningType() || input.Type.IsSpanOrReadOnlySpanChar()) 752bool isStringInput = input.Type.SpecialType == SpecialType.System_String; 753bool isSpanInput = input.Type.IsSpanChar(); 754bool isReadOnlySpanInput = input.Type.IsReadOnlySpanChar(); 783else if (input.Type.IsNativeIntegerType) 788switch (input.Type.SpecialType) 803throw ExceptionUtilities.UnexpectedValue(input.Type); 813var lessThanOrEqualOperator = input.Type.SpecialType switch 818_ => throw ExceptionUtilities.UnexpectedValue(input.Type.SpecialType) 821var cases = node.Cases.Sort(new CasesComparer(input.Type));

202TypeSymbol inputType = input.Type; 215Conversion conversion = _factory.Compilation.Conversions.ClassifyBuiltInConversion(inputType, output.Type, isChecked: false, ref useSiteInfo); 223inputType.GetNullableUnderlyingType().Equals(output.Type, TypeCompareKind.AllIgnoreOptions) && 344Debug.Assert(input.Type is { }); 348return MakeNullCheck(d.Syntax, input, input.Type.IsNullableType() ? BinaryOperatorKind.NullableNullNotEqual : BinaryOperatorKind.NotEqual); 355return MakeNullCheck(d.Syntax, input, input.Type.IsNullableType() ? BinaryOperatorKind.NullableNullEqual : BinaryOperatorKind.Equal); 358Debug.Assert(!input.Type.IsNullableType()); 362Debug.Assert(!input.Type.IsNullableType()); 363Debug.Assert(input.Type.IsValueType); 373Debug.Assert(!rewrittenExpr.Type.IsSpanOrReadOnlySpanChar()); 375if (rewrittenExpr.Type.IsPointerOrFunctionPointer()) 393if (value.IsString && input.Type.IsSpanOrReadOnlySpanChar()) 398TypeSymbol comparisonType = input.Type.EnumUnderlyingTypeOrSelf(); 407if (input.Type.SpecialType == SpecialType.System_Double && double.IsNaN(value.DoubleValue) || 408input.Type.SpecialType == SpecialType.System_Single && float.IsNaN(value.SingleValue)) 414BoundExpression literal = _localRewriter.MakeLiteral(syntax, value, input.Type); 415TypeSymbol comparisonType = input.Type.EnumUnderlyingTypeOrSelf(); 437var isReadOnlySpan = input.Type.IsReadOnlySpanChar(); 479Debug.Assert(output.Type is { }); 481testExpression = _factory.ObjectNotEqual(output, _factory.Null(output.Type)); 515Debug.Assert(loweredInput.Type is { }); 556if (loweredInput.Type.IsTupleType && 557!loweredInput.Type.OriginalDefinition.Equals(_factory.Compilation.GetWellKnownType(WellKnownType.System_ValueTuple_TRest)) && 631var temp = new BoundDagTemp(expr.Syntax, expr.Type, fieldFetchEvaluation);

51ConstantValue constantValue = Binder.GetAsOperatorConstantResult(rewrittenOperand.Type, rewrittenType, conversion.Kind, rewrittenOperand.ConstantValueOpt); 88Debug.Assert(result.Type!.Equals(rewrittenType, TypeCompareKind.ConsiderEverything));

395TypeSymbol? exprType = rewrittenRight.Type;

340Debug.Assert(loweredLeft.Type is { }); 341Debug.Assert(loweredRight.Type is { }); 343return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredRight, loweredRight.Type); 346return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredLeft, loweredLeft.Type); 354Debug.Assert(loweredLeft.Type is { }); 355Debug.Assert(loweredRight.Type is { }); 357return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredRight, loweredRight.Type); 360return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredLeft, loweredLeft.Type); 368Debug.Assert(loweredLeft.Type is { }); 369Debug.Assert(loweredRight.Type is { }); 371return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredRight, loweredRight.Type); 374return MakeUnaryOperator(UnaryOperatorKind.BoolLogicalNegation, syntax, method: null, constrainedToTypeOpt: null, loweredLeft, loweredLeft.Type); 576Debug.Assert(loweredLeft.Type is { }); 577whenNullOpt = RewriteLiftedBinaryOperator(syntax, operatorKind, _factory.Default(loweredLeft.Type), loweredRight, type, method, constrainedToTypeOpt); 587type: result.Type! 770conversion = _compilation.Conversions.ClassifyConversionFromType(loweredLeft.Type, parameterType, isChecked: operatorKind.IsChecked(), ref useSiteInfo); 908Debug.Assert(expression.Type is { }); 912if (expression.Type.IsNullableType()) 918UnsafeGetNullableMethod(syntax, expression.Type, SpecialMember.System_Nullable_T_GetValueOrDefault)); 931Debug.Assert(expression.Type is { }); 935if (expression.Type.IsNullableType()) 945Debug.Assert(expression.Type is { }); 950UnsafeGetNullableMethod(syntax, expression.Type, SpecialMember.System_Nullable_T_get_HasValue)); 1633Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Consequence.Type, TypeCompareKind.ConsiderEverything2)); 1634Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Alternative.Type, TypeCompareKind.ConsiderEverything2)); 1707Debug.Assert(alwaysNull.Type is { }); 1708BoundExpression nullBool = new BoundDefaultExpression(syntax, alwaysNull.Type); 1720rewrittenType: alwaysNull.Type, 1747rewrittenType: alwaysNull.Type, 1749Debug.Assert(conditionalExpression.Type is { }); 1755type: conditionalExpression.Type); 1809rewrittenType: newNullBool.Type!, 1816type: conditionalExpression.Type!); 1896rewrittenType: alternative.Type!, 1904type: conditionalExpression.Type!); 2002return conditionalAccess.Update(conditionalAccess.Receiver, conditionalAccess.HasValueMethodOpt, whenNotNull, whenNull, conditionalAccess.Id, conditionalAccess.ForceCopyOfNullableValueType, whenNotNull.Type!); 2058Debug.Assert(loweredLeft.Type is { SpecialType: SpecialType.System_Decimal }); 2059Debug.Assert(loweredRight.Type is { SpecialType: SpecialType.System_Decimal }); 2092TypeSymbol? exprType = rewrittenExpr.Type; 2155Debug.Assert(loweredRight.Type is { }); 2156TypeSymbol rightType = loweredRight.Type; 2222Debug.Assert(loweredLeft.Type is { }); 2223TypeSymbol leftType = loweredLeft.Type; 2227Debug.Assert(loweredRight.Type is { }); 2228TypeSymbol rightType = loweredRight.Type; 2278Debug.Assert(loweredLeft.Type is { TypeKind: TypeKind.Pointer }); 2279loweredRight = MakeSizeOfMultiplication(loweredRight, (PointerTypeSymbol)loweredLeft.Type, kind.IsChecked()); 2283Debug.Assert(loweredRight.Type is { TypeKind: TypeKind.Pointer }); 2284loweredLeft = MakeSizeOfMultiplication(loweredLeft, (PointerTypeSymbol)loweredRight.Type, kind.IsChecked()); 2323Debug.Assert(sizeOfExpression.Type is { SpecialType: SpecialType.System_Int32 }); 2333Debug.Assert(numericOperand.Type is { }); 2334var numericSpecialType = numericOperand.Type.SpecialType; 2470Debug.Assert(loweredLeft.Type is { TypeKind: TypeKind.Pointer }); 2471Debug.Assert(loweredRight.Type is { TypeKind: TypeKind.Pointer }); 2474PointerTypeSymbol pointerType = (PointerTypeSymbol)loweredLeft.Type;

103if (module != null && receiver != null && receiver.Type is { }) 105var assembly = receiver.Type.ContainingAssembly; 122if (module != null && receiver is { Type: { } }) 124var assembly = receiver.Type.ContainingAssembly; 216var symbolForCompare = needToReduce ? ReducedExtensionMethodSymbol.Create(interceptor, receiverOpt!.Type, _compilation, out _) : interceptor; 290Debug.Assert(receiverOpt?.Type is not null); 296Debug.Assert(receiverOpt.Type.Equals(interceptor.Parameters[0].Type, TypeCompareKind.AllIgnoreOptions) 297|| (!receiverOpt.Type.IsReferenceType && interceptor.Parameters[0].Type.IsReferenceType)); 525Debug.Assert(rewrittenBoundCall.Type is not null); 534type: rewrittenBoundCall.Type); 686Debug.Assert(rewrittenReceiver.Type is { }); 706refKind = rewrittenReceiver.Type.IsValueType || rewrittenReceiver.Type.Kind == SymbolKind.TypeParameter ? RefKind.Ref : RefKind.None; 710if (rewrittenReceiver.Type.IsReferenceType) 951Debug.Assert(rewrittenReceiver.Type is { }); 957if (rewrittenReceiver.Type.IsReferenceType || 1195optimized = CreateArrayEmptyCallIfAvailable(possibleParamsArray.Syntax, ((ArrayTypeSymbol)possibleParamsArray.Type!).ElementType); 1637Debug.Assert(value.Type is { }); 1666value.Type);

160Debug.Assert(singleSpread.Expression.Type is not null); 162if (!ShouldUseIEnumerableBulkAddMethod(singleSpread.Expression.Type, toListOfElementType.Parameters[0].Type, singleSpread.EnumeratorInfoOpt?.GetEnumeratorInfo.Method)) 208Elements: [BoundCollectionExpressionSpreadElement { Expression: { Type: NamedTypeSymbol spreadType } expr }], 377Debug.Assert(list.Type is { }); 378Debug.Assert(list.Type.OriginalDefinition.Equals(_compilation.GetWellKnownType(WellKnownType.System_Collections_Generic_List_T), TypeCompareKind.AllIgnoreOptions)); 380var listToArray = ((MethodSymbol)_factory.WellKnownMember(WellKnownMember.System_Collections_Generic_List_T__ToArray)).AsMember((NamedTypeSymbol)list.Type); 734var spreadTypeOriginalDefinition = spreadExpression.Type!.OriginalDefinition; 740return _factory.Call(rewrittenSpreadExpression, listToArrayMethod.AsMember((NamedTypeSymbol)spreadExpression.Type!)); 750&& ShouldUseIEnumerableBulkAddMethod(spreadExpression.Type!, linqToArrayMethod.Parameters[0].Type, spreadElement.EnumeratorInfoOpt?.GetEnumeratorInfo.Method)) 757&& TryGetSpanConversion(spreadExpression.Type, writableOnly: false, out var asSpanMethod)) 759var spanType = CallAsSpanMethod(spreadExpression, asSpanMethod).Type!.OriginalDefinition; 764return _factory.Call(rewrittenSpreadExpression, toArrayMethod.AsMember((NamedTypeSymbol)rewrittenSpreadExpression.Type!)); 859Debug.Assert(arrayTemp.Type is ArrayTypeSymbol); 863var elementType = ((ArrayTypeSymbol)arrayTemp.Type).ElementType; 973var type = expression.Type; 1040if (spreadOperandAsSpan.Type!.OriginalDefinition.Equals(this._compilation.GetWellKnownType(wellKnownSpanType)) 1079var spreadLength = _factory.Call(spreadOperandAsSpan, getLengthMethod.AsMember((NamedTypeSymbol)spreadOperandAsSpan.Type!)); 1080var targetSlice = _factory.Call(spanTemp, spanSliceMethod.AsMember((NamedTypeSymbol)spanTemp.Type!), indexTemp, spreadLength); 1081sideEffects.Add(_factory.Call(spreadOperandAsSpan, copyToMethod.AsMember((NamedTypeSymbol)spreadOperandAsSpan.Type!), targetSlice)); 1195Debug.Assert(spanTemp.Type is NamedTypeSymbol); 1199var elementType = ((NamedTypeSymbol)spanTemp.Type).TypeArgumentsWithAnnotationsNoUseSiteDiagnostics[0].Type; 1248Debug.Assert(rewrittenSpreadOperand.Type is not null); 1253if (!ShouldUseIEnumerableBulkAddMethod(rewrittenSpreadOperand.Type, addRangeMethod.Parameters[0].Type, spreadElement.EnumeratorInfoOpt?.GetEnumeratorInfo.Method)) 1388_factory.Binary(BinaryOperatorKind.Addition, sum.Type!, sum, value); 1423if (convertedExpression.Operand.Type is ArrayTypeSymbol arrayType)

24Debug.Assert(TypeSymbol.Equals(node.Right.Type, node.Operator.RightType, TypeCompareKind.ConsiderEverything2)); 39Debug.Assert(node.LeftConversion is null || (node.Left.Type!.IsReferenceType && node.Operator.Method.GetIsNewExtensionMember())); 53TypeSymbol? leftType = node.Left.Type; // type of the target 153Debug.Assert(rewrittenAssignment.Type is { }); 156var condition = _factory.Conditional(isEvent, invokeEventAccessor.ToExpression(), rewrittenAssignment, rewrittenAssignment.Type); 158rewrittenAssignment = new BoundSequence(node.Syntax, eventTemps.ToImmutableAndFree(), sequence.ToImmutableAndFree(), condition, condition.Type!); 165Debug.Assert(rewrittenAssignment.Type is { }); 173rewrittenAssignment.Type); 216Debug.Assert(node.Left.Type is { }); 228Debug.Assert(TypeSymbol.Equals(transformedLHS.Type, node.Left.Type, TypeCompareKind.AllIgnoreOptions)); 235Debug.Assert(assignment.Type is { }); 236return new BoundSequence(syntax, [binaryResult.LocalSymbol], [assignmentToTemp], assignment, assignment.Type); 292Debug.Assert(rewrittenReceiver.Type is { }); 312var variableRepresentsLocation = rewrittenReceiver.Type.IsValueType || rewrittenReceiver.Type.Kind == SymbolKind.TypeParameter; 315isKnownToReferToTempIfReferenceType = !variableRepresentsLocation || rewrittenReceiver.Type.IsValueType || 544indexerAccess.Argument.Type, 551throw ExceptionUtilities.UnexpectedValue(indexerAccess.Argument.Type); 572if (isDynamicAssignment || !IsInvariantArray(arrayAccess.Expression.Type)) 600Debug.Assert(receiver is { Type: { } }); 605else if (!receiver.Type.IsReferenceType) 610Debug.Assert(receiver.Type.IsReferenceType); 614Debug.Assert(rewrittenReceiver.Type is { }); 615if (rewrittenReceiver.Type.IsTypeParameter()) 753Debug.Assert(implicitIndexerAccess.Argument.Type!.Equals(_compilation.GetWellKnownType(WellKnownType.System_Index)) 754|| implicitIndexerAccess.Argument.Type!.Equals(_compilation.GetWellKnownType(WellKnownType.System_Range))); 783if (isDynamicAssignment || !IsInvariantArray(arrayAccess.Expression.Type)) 964var type = expression.Type; 980var type = expression.Type; 1036Debug.Assert(expression.Type is { }); 1037if (expression.Type.IsNullableType())

41Debug.Assert(node.AccessExpression.Type is { }); 44Debug.Assert(loweredReceiver.Type is { }); 45var receiverType = loweredReceiver.Type; 55var lowerToConditional = node.AccessExpression.Type.IsDynamic(); 120Debug.Assert(loweredAccessExpression.Type is { }); 126TypeSymbol accessExpressionType = loweredAccessExpression.Type; 149Debug.Assert(loweredReceiver.Type is { }); 154UnsafeGetNullableMethod(node.Syntax, loweredReceiver.Type, SpecialMember.System_Nullable_T_get_HasValue) : 205Debug.Assert(newtarget is { Type: { } }); 207if (newtarget.Type.IsNullableType())

82Debug.Assert(result.Type!.Equals(toType, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)); 94Debug.Assert(node.Type is not null); 95Debug.Assert(_compilation.IsReadOnlySpanType(node.Type)); 96var byteType = ((NamedTypeSymbol)node.Type).TypeArgumentsWithAnnotationsNoUseSiteDiagnostics.Single().Type; 111result = BadExpression(node.Syntax, node.Type, ImmutableArray<BoundExpression>.Empty); 115result = new BoundObjectCreationExpression(node.Syntax, ctor.AsMember((NamedTypeSymbol)node.Type), utf8Bytes, _factory.Literal(0), _factory.Literal(length)); 224Debug.Assert(rewrittenNode.Type is { }); 225var type = rewrittenNode.Type; 271Debug.Assert(result.Type is { } rt && rt.Equals(rewrittenType, TypeCompareKind.AllIgnoreOptions)); 289type: result.Type); 312@checked = @checked && NeedsCheckedConversionInExpressionTree(rewrittenOperand.Type, rewrittenType, explicitCastInCode); 318Debug.Assert(rewrittenOperand.Type is { }); 331if (_inExpressionLambda || !rewrittenOperand.Type.Equals(rewrittenType, TypeCompareKind.ConsiderEverything)) 426Debug.Assert(rewrittenOperand.Type is { }); 432if (rewrittenType.SpecialType == SpecialType.System_Decimal || rewrittenOperand.Type.SpecialType == SpecialType.System_Decimal) 434return RewriteDecimalConversion(syntax, rewrittenOperand, rewrittenOperand.Type, rewrittenType, @checked, conversion.Kind.IsImplicitConversion(), constantValueOpt); 441Debug.Assert(rewrittenOperand.Type is { }); 444Debug.Assert(rewrittenOperand.Type.Equals(rewrittenType, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)); 487Debug.Assert(rewrittenOperand.Type is { }); 497Debug.Assert(rewrittenOperand.Type.IsEnumType()); 498var underlyingTypeFrom = rewrittenOperand.Type.GetEnumUnderlyingType()!; 502else if (rewrittenOperand.Type.SpecialType == SpecialType.System_Decimal) 510var rewrittenNode = RewriteDecimalConversion(syntax, rewrittenOperand, rewrittenOperand.Type, underlyingTypeTo, @checked, isImplicit: false, constantValueOpt: constantValueOpt); 555(symbolOpt.IsAbstract || symbolOpt.IsVirtual) ? mg.ReceiverOpt?.Type : null, 594Debug.Assert(rewrittenOperand.Type is not null); 609createSpan = createSpan.Construct(rewrittenOperand.Type, spanType.TypeArgumentsWithAnnotationsNoUseSiteDiagnostics.Single().Type); 610_ = rewrittenOperand.Type.HasInlineArrayAttribute(out int length); 618var sourceType = rewrittenOperand.Type; 815Debug.Assert(rewrittenOperand.Type is { }); 817Conversion conversion = compilation.Conversions.ClassifyConversionFromType(rewrittenOperand.Type, rewrittenType, isChecked: @checked, ref useSiteInfo); 823rewrittenOperand.Type.SpecialType != SpecialType.System_Decimal && 824rewrittenOperand.Type.SpecialType != SpecialType.System_DateTime) 830rewrittenOperand.Type, 876if (!TypeSymbol.Equals(rewrittenOperand.Type, conversion.BestUserDefinedConversionAnalysis.FromType, TypeCompareKind.ConsiderEverything2)) 886if (!TypeSymbol.Equals(rewrittenOperand.Type, conversion.Method.GetParameterType(0), TypeCompareKind.ConsiderEverything2)) 899Debug.Assert(rewrittenOperand.Type is { }); 900if (rewrittenOperand.Type.IsNullableType() && 901conversion.Method.GetParameterType(0).Equals(rewrittenOperand.Type.GetNullableUnderlyingType(), TypeCompareKind.AllIgnoreOptions) && 905userDefinedConversionRewrittenType = ((NamedTypeSymbol)rewrittenOperand.Type.OriginalDefinition).Construct(userDefinedConversionRewrittenType); 915if (!TypeSymbol.Equals(userDefined.Type, conversion.BestUserDefinedConversionAnalysis.ToType, TypeCompareKind.ConsiderEverything2)) 924if (!TypeSymbol.Equals(userDefined.Type, rewrittenType, TypeCompareKind.ConsiderEverything2)) 956Debug.Assert(rewrittenOperand.Type is { }); 960var tupleTypeSymbol = (NamedTypeSymbol)rewrittenOperand.Type; 997Debug.Assert(expression.Type is { }); 998if (!expression.Type.IsNullableType()) 1010when convertedArgument.Type!.Equals(expression.Type.StrippedType(), TypeCompareKind.AllIgnoreOptions): 1015when underlying.Length == 1 && underlying[0].Kind == ConversionKind.ImplicitTuple && !convertedArgument.Type!.IsNullableType(): 1050TypeSymbol? rewrittenOperandType = rewrittenOperand.Type; 1100Debug.Assert(rewrittenOperand.Type is { }); 1101TypeSymbol rewrittenOperandType = rewrittenOperand.Type; 1314Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Consequence.Type, TypeCompareKind.ConsiderEverything2)); 1315Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Alternative.Type, TypeCompareKind.ConsiderEverything2)); 1347Debug.Assert(rewrittenOperand.Type is { }); 1348if (rewrittenOperand.Type.IsNullableType()) 1351if (parameterType.Equals(rewrittenOperand.Type.GetNullableUnderlyingType(), TypeCompareKind.AllIgnoreOptions) && 1365if ((rewrittenOperand.Type.IsArray()) && _compilation.IsReadOnlySpanType(rewrittenType)) 1377Debug.Assert(TypeSymbol.Equals(result.Type, rewrittenType, TypeCompareKind.ConsiderEverything2)); 1400Debug.Assert(rewrittenOperand.Type is { }); 1403Conversion conv = TryMakeConversion(syntax, conversion, rewrittenOperand.Type, rewrittenType, @checked: @checked); 1415Debug.Assert(rewrittenOperand.Type.IsNullableType()); 1492Debug.Assert(rewrittenOperand.Type is { }); 1495TypeSymbol source = rewrittenOperand.Type; 1718Debug.Assert(operand.Type is { }); 1719return RewriteDecimalConversionCore(syntax, operand, operand.Type, toType, isImplicit, constantValueOpt);

42Debug.Assert(left.Type is { }); 43BoundExpression? result = RewriteDeconstruction(lhsTargets, conversion, left.Type, right, isUsed); 247Debug.Assert(leftTarget is { Type: { } }); 264var tupleType = NamedTypeSymbol.CreateTuple(locationOpt: null, elementTypesWithAnnotations: builder!.SelectAsArray(e => TypeWithAnnotations.Create(e.Type)), 318Debug.Assert(right.Type is { }); 319if (right.Type.IsTupleType) 337Debug.Assert(expression.Type is { }); 338Debug.Assert(expression.Type.IsTupleType); 339var tupleType = expression.Type; 462Debug.Assert(variable.Type is { }); 464effects, temps, isDynamicAssignment: variable.Type.IsDynamic());

188return new BoundSequence(syntax, tempSymbols, sideEffects.ToImmutableAndFree(), marshalCall, marshalCall.Type!);

209else if (fixedCollectionInitializer.Expression.Type is { SpecialType: SpecialType.System_String }) 213else if (fixedCollectionInitializer.Expression.Type is { TypeKind: TypeKind.Array }) 241Debug.Assert(initializerExpr.Type is { TypeKind: TypeKind.Pointer }); 247TypeSymbol initializerType = ((PointerTypeSymbol)initializerExpr.Type).PointedAtType; 308Debug.Assert(initializerExpr.Type is { }); 310var initializerType = initializerExpr.Type; 445TypeSymbol? initializerType = initializerExpr.Type; 514TypeSymbol? initializerType = initializerExpr.Type;

43TypeSymbol? nodeExpressionType = collectionExpression.Type; 501Debug.Assert(receiver.Type is { }); 502if (!receiver.Type.IsReferenceType && method.ContainingType.IsInterface) 600NamedTypeSymbol? collectionType = (NamedTypeSymbol?)collectionExpression.Type; 739Debug.Assert(rewrittenExpression.Type is not null); 868Debug.Assert(collectionExpression.Type is { TypeKind: TypeKind.Array }); 896Debug.Assert(collectionExpression.Type is { TypeKind: TypeKind.Array }); 900ArrayTypeSymbol arrayType = (ArrayTypeSymbol)collectionExpression.Type; 1017Debug.Assert(collectionExpression.Type is { TypeKind: TypeKind.Array }); 1045Debug.Assert(collectionExpression.Type is { TypeKind: TypeKind.Array }); 1049ArrayTypeSymbol arrayType = (ArrayTypeSymbol)collectionExpression.Type;

24operand = new BoundDefaultExpression(operand.Syntax, operand.Type!.GetNullableUnderlyingType()); 72Debug.Assert(TypeSymbol.Equals(targetNullableType.GetNullableUnderlyingType(), underlyingValue.Type, TypeCompareKind.AllIgnoreOptions));

121Debug.Assert(oldNode.Type is not null); 122Debug.Assert(oldNode.Type.Equals(type, TypeCompareKind.ConsiderEverything)); 218Debug.Assert(call.Type is not null); 233call.Type); 242Debug.Assert(node.Expression.Type is object); 243Debug.Assert(node.Argument.Type is object); 258_ = node.Expression.Type.HasInlineArrayAttribute(out int length); 260if (node.Argument.Type.SpecialType == SpecialType.System_Int32) 268if (TypeSymbol.Equals(node.Argument.Type, _compilation.GetWellKnownType(WellKnownType.System_Index), TypeCompareKind.AllIgnoreOptions)) 280Debug.Assert(TypeSymbol.Equals(node.Argument.Type, _compilation.GetWellKnownType(WellKnownType.System_Range), TypeCompareKind.AllIgnoreOptions)); 362Debug.Assert(node.Expression.Type is object); 374return createSpan.Construct(node.Expression.Type, node.Expression.Type.TryGetInlineArrayElementField()!.Type); 379Debug.Assert(node.Expression.Type is object); 380Debug.Assert(index.Type?.SpecialType == SpecialType.System_Int32); 382var intType = (NamedTypeSymbol)index.Type; 401elementRef = elementRef.Construct(node.Expression.Type, node.Expression.Type.TryGetInlineArrayElementField()!.Type); 420elementRef = elementRef.Construct(node.Expression.Type, node.Expression.Type.TryGetInlineArrayElementField()!.Type); 475node.Argument.Type, 484node.Argument.Type, 522node.Argument.Type, 538Debug.Assert(receiver.Type is { }); 544receiver.Type.IsReferenceType ? RefKind.None : RefKind.Ref); 602Debug.Assert(integerArgument.Type!.SpecialType == SpecialType.System_Int32); 699Debug.Assert(loweredExpr.Type!.SpecialType == SpecialType.System_Int32); 710Debug.Assert(loweredExpr.Type!.SpecialType == SpecialType.System_Int32); 717loweredExpr.Type, 750unloweredExpr.Type, 758Debug.Assert(hatExpression.Operand is { Type: { SpecialType: SpecialType.System_Int32 } }); 762else if (unloweredExpr is BoundConversion { Operand: { Type: { SpecialType: SpecialType.System_Int32 } } operand }) 771arguments[0] is { Type.SpecialType: SpecialType.System_Int32, ConstantValueOpt.Value: int _ and >= 0 } index && 772arguments[1] is { Type.SpecialType: SpecialType.System_Boolean, ConstantValueOpt.Value: bool fromEnd }) 815node.Argument.Type, 841Debug.Assert(receiver.Type is { }); 847receiver.Type.IsReferenceType ? RefKind.None : RefKind.Ref);

48var operandType = rewrittenOperand.Type;

119Debug.Assert(node.Type is { SpecialType: SpecialType.System_Boolean }); 120LocalSymbol resultTemp = _factory.SynthesizedLocal(node.Type, node.Syntax, kind: SynthesizedLocalKind.LoweringTemp); 175if (test.Type?.IsErrorType() != false) 178Debug.Assert(test.Type.SpecialType == SpecialType.System_Boolean);

20return MakeLiteral(node.Syntax, node.ConstantValueOpt, node.Type, oldNodeOpt: node);

30TypeSymbol? argumentType = rewrittenArgument.Type;

16Debug.Assert(node.Type is { }); 20Debug.Assert(node.LeftOperand.Type is { }); 24Debug.Assert(transformedLHS.Type is { }); 41Debug.Assert(TypeSymbol.Equals(transformedLHS.Type, node.LeftOperand.Type, TypeCompareKind.AllIgnoreOptions)); 49Debug.Assert(assignment.Type is { }); 50assignment = new BoundSequence(syntax, [rightResult.LocalSymbol], [assignmentToTemp], assignment, assignment.Type); 58var leftPlaceholder = new BoundValuePlaceholder(lhsRead.Syntax, lhsRead.Type); 59BoundExpression conditionalExpression = MakeNullCoalescingOperator(syntax, lhsRead, assignment, leftPlaceholder: leftPlaceholder, leftConversion: leftPlaceholder, BoundNullCoalescingOperatorResultKind.LeftType, node.LeftOperand.Type); 60Debug.Assert(conditionalExpression.Type is { }); 69conditionalExpression.Type); 76Debug.Assert(node.LeftOperand.Type.IsNullableType()); 85leftOperand.Type, 93leftOperand.Type, 125Debug.Assert(transformedLHS.Type.GetNullableUnderlyingType().Equals(tmp.Type.StrippedType(), TypeCompareKind.AllIgnoreOptions)); 128Debug.Assert(TypeSymbol.Equals(transformedLHS.Type, node.LeftOperand.Type, TypeCompareKind.AllIgnoreOptions)); 133MakeConversionNode(tmp, transformedLHS.Type, @checked: false, markAsChecked: true),

35Debug.Assert(rewrittenRight.Type is { }); 36Debug.Assert(rewrittenRight.Type.Equals(rewrittenResultType, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)); 42Debug.Assert(rewrittenLeft.Type is { }); 59var isUnconstrainedTypeParameter = rewrittenLeft.Type is { IsReferenceType: false, IsValueType: false }; 90Debug.Assert(rewrittenLeft.Type is { }); 91if (rewrittenLeft.Type.IsReferenceType && 110if (whenNullOpt.Type.IsNullableType()) 115if (whenNullOpt.IsDefaultValue() && whenNullOpt.Type.SpecialType != SpecialType.System_Decimal) 133if (rewrittenLeft.Type.IsNullableType() && 134rewrittenRight.Type.Equals(rewrittenLeft.Type.GetNullableUnderlyingType(), TypeCompareKind.AllIgnoreOptions)) 140TryGetNullableMethod(rewrittenLeft.Syntax, rewrittenLeft.Type, SpecialMember.System_Nullable_T_GetValueOrDefault, out MethodSymbol? getValueOrDefault, isOptional: true)) 147TryGetNullableMethod(rewrittenLeft.Syntax, rewrittenLeft.Type, SpecialMember.System_Nullable_T_GetValueOrDefaultDefaultValue, out MethodSymbol? getValueOrDefaultDefaultValue, isOptional: true)) 167Debug.Assert(convertedLeft.HasErrors || convertedLeft.Type!.Equals(rewrittenResultType, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)); 180Debug.Assert(conditionalExpression.Type!.Equals(rewrittenResultType, TypeCompareKind.IgnoreDynamicAndTupleNames | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes)); 238Debug.Assert(rewrittenLeft.Type is { }); 242TypeSymbol rewrittenLeftType = rewrittenLeft.Type; 250var conversionTakesNullableType = leftPlaceholder?.Type?.IsNullableType() == true;

81Debug.Assert(TypeSymbol.Equals(rewrittenObjectCreation.Type, ((NamedTypeSymbol)node.Type).ComImportCoClass, TypeCompareKind.ConsiderEverything2)); 99rewrittenObjectCreation = new BoundDefaultExpression(rewrittenObjectCreation.Syntax, rewrittenObjectCreation.Type!); 114Debug.Assert(TypeSymbol.Equals(rewrittenObjectCreation.Type, ((NamedTypeSymbol)node.Type).ComImportCoClass, TypeCompareKind.ConsiderEverything2)); 135Debug.Assert(receiver.Type!.Equals(type, TypeCompareKind.ConsiderEverything)); 320return MakeExpressionWithInitializer(node.Syntax, rewrittenNewT, node.InitializerExpressionOpt, rewrittenNewT.Type!);

400Debug.Assert(assignment.Type.IsDynamic() || TypeSymbol.Equals(rewrittenAccess.Type, assignment.Type, TypeCompareKind.AllIgnoreOptions)); 454Debug.Assert(TypeSymbol.Equals(rangeArgument.Type, _compilation.GetWellKnownType(WellKnownType.System_Range), TypeCompareKind.ConsiderEverything)); 472Debug.Assert(TypeSymbol.Equals(rewrittenAccess.Type, assignment.Type, TypeCompareKind.AllIgnoreOptions)); 505Debug.Assert(TypeSymbol.Equals(rewrittenAccess.Type, assignment.Type, TypeCompareKind.AllIgnoreOptions)); 517if (TypeSymbol.Equals(implicitIndexer.Argument.Type, _compilation.GetWellKnownType(WellKnownType.System_Index), TypeCompareKind.ConsiderEverything)) 539Debug.Assert(TypeSymbol.Equals(rewrittenAccess.Type, assignment.Type, TypeCompareKind.AllIgnoreOptions)); 700Debug.Assert(_compilation.Conversions.ClassifyConversionFromType(rewrittenReceiver.Type, memberSymbol.ContainingType, isChecked: false, ref discardedUseSiteInfo).IsImplicit || 701(memberSymbol.GetIsNewExtensionMember() && !memberSymbol.IsStatic && ConversionsBase.IsValidExtensionMethodThisArgConversion(_compilation.Conversions.ClassifyConversionFromType(rewrittenReceiver.Type, memberSymbol.ContainingType.ExtensionParameter!.Type, isChecked: false, ref discardedUseSiteInfo))) || 702_compilation.Conversions.HasImplicitConversionToOrImplementsVarianceCompatibleInterface(rewrittenReceiver.Type, memberSymbol.ContainingType, ref discardedUseSiteInfo, out _));

46Debug.Assert(rewrittenExpression.Type is { }); 47Debug.Assert(rewrittenIndex.Type is { }); 48switch (rewrittenIndex.Type.SpecialType) 63throw ExceptionUtilities.UnexpectedValue(rewrittenIndex.Type.SpecialType); 78rewrittenExpression.Type,

37if (rewrittenReceiverOpt is { Type: { TypeKind: TypeKind.Array } } && !isLeftOfAssignment) 39var asArrayType = (ArrayTypeSymbol)rewrittenReceiverOpt.Type;

56Debug.Assert(operand.Type is { }); 60operand = new BoundDefaultExpression(operand.Syntax, operand.Type.GetNullableUnderlyingType()); 65Debug.Assert(operand.Type is { }); 67if (operand.Type.IsNullableType()) 80Debug.Assert(left?.Type?.IsNullableType() == true || right?.Type?.IsNullableType() == true); 131Debug.Assert(tempOperand.Type is { }); 133if (tempOperand.Type.IsNullableType())

28var type = stackAllocNode.Type;

75Debug.Assert(visitedArguments.All(arg => arg.Type!.SpecialType is SpecialType.System_String or SpecialType.System_Char or SpecialType.System_Object)); 107var argumentType = arg.Type; 153bool needsImplicitConversionFromStringToSpan = visitedArguments.Any(arg => arg.Type is { SpecialType: SpecialType.System_String }); 222not (BoundCall or BoundConversion { ConversionKind: ConversionKind.Boxing, Type.SpecialType: SpecialType.System_Object, Operand.Type.SpecialType: SpecialType.System_Char }) 286if (argument is BoundConversion { ConversionKind: ConversionKind.Boxing, Type.SpecialType: SpecialType.System_Object, Operand: { Type.SpecialType: SpecialType.System_Char } operand }) 307else if (argument is BoundNullCoalescingOperator { LeftOperand: { Type.SpecialType: SpecialType.System_String } left, RightOperand: BoundLiteral { ConstantValueOpt: { IsString: true, RopeValue.IsEmpty: true } } }) 397if (call is { Arguments: [], ReceiverOpt.Type: NamedTypeSymbol { SpecialType: SpecialType.System_Char } charType, Method: { Name: "ToString" } method } 474Debug.Assert(arg.Type is not null); 476if (arg.Type.SpecialType == SpecialType.System_Char) 505Debug.Assert(arg.HasAnyErrors || arg.Type.SpecialType == SpecialType.System_String); 605Debug.Assert(expr.Type is not null); 608if (expr.Type.IsStringType()) 620if (expr.Type.IsValueType && !expr.Type.IsTypeParameter()) 622var type = (NamedTypeSymbol)expr.Type; 643expr.Type.SpecialType.CanOptimizeBehavior() && 659bool callWithoutCopy = expr.Type.IsReferenceType || 661(structToStringMethod == null && !expr.Type.IsTypeParameter()) || 665if (expr.Type.IsValueType) 669expr = new BoundPassByCopy(syntax, expr, expr.Type); 701new BoundConditionalReceiver(syntax, currentConditionalAccessID, expr.Type),

107if (actualCall.Type!.IsDynamic()) 145Debug.Assert(node.Type is { SpecialType: SpecialType.System_String }); // if target-converted, we should not get here. 149return LowerPartsToString(data, node.Parts, node.Syntax, node.Type); 183_factory.Binary(BinaryOperatorKind.StringConcatenation, node.Type, result, part); 194Debug.Assert(result.Type is not null); 195Debug.Assert(result.Type.SpecialType == SpecialType.System_String || result.Type.IsErrorType()); 196var placeholder = new BoundValuePlaceholder(result.Syntax, result.Type); 197result = new BoundNullCoalescingOperator(result.Syntax, result, _factory.StringLiteral(""), leftPlaceholder: placeholder, leftConversion: placeholder, BoundNullCoalescingOperatorResultKind.LeftType, @checked: false, result.Type) { WasCompilerGenerated = true };

54Debug.Assert(expr.Type == (object?)o.Type || expr.Type is { } && expr.Type.Equals(o.Type, TypeCompareKind.AllIgnoreOptions)); 90expr.Type is { } exprType && exprType.IsNullableType() && exprType.StrippedType().Equals(o.Type, TypeCompareKind.AllIgnoreOptions): 107Debug.Assert(expr.Type is { }); 108var destElementTypes = expr.Type.TupleElementTypesWithAnnotations; 110Debug.Assert(boundConversion.Operand.Type is { }); 111var srcElementFields = boundConversion.Operand.Type.TupleElements; 127ImmutableArray<bool>.Empty, expr.Type, expr.HasErrors); 163ImmutableArray<bool>.Empty, tuple.Type, tuple.HasErrors); 206return new BoundLiteral(expr.Syntax, ConstantValue.Null, expr.Type); 356isNullable = !(expr is BoundTupleExpression) && expr.Type is { } && expr.Type.IsNullableType(); 368Debug.Assert(expr.Type is { }); 371value = new BoundDefaultExpression(expr.Syntax, expr.Type.StrippedType()); 398Debug.Assert(expr.Type is { }); 404when expr.Type.IsNullableType() && o.Type is { } && o.Type.IsNullableType() && !underlying[0].IsUserDefined: 438expr.Type is { } exprType && exprType.IsNullableType() && o.Type is { } && o.Type.IsNullableType() && nested[0] is { IsTupleConversion: true } tupleConversion: 440Debug.Assert(expr.Type is { }); 443Debug.Assert(operand.Type is { }); 444var types = expr.Type.GetNullableUnderlyingType().TupleElementTypesWithAnnotations; 445int tupleCardinality = operand.Type.TupleElementTypesWithAnnotations.Length; 461type: expr.Type, 524Debug.Assert(tuple.Type is { IsTupleType: true }); 530return MakeTupleFieldAccessAndReportUseSiteDiagnostics(tuple, tuple.Syntax, tuple.Type.TupleElements[i]);

39Debug.Assert(node.Type is { }); 40return MakeTupleCreationExpression(node.Syntax, (NamedTypeSymbol)node.Type, rewrittenArguments);

133var underlyingType = loweredOperand.Type.GetEnumUnderlyingType(); 277Debug.Assert(result.Type is { }); 286type: result.Type 329Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Consequence.Type, TypeCompareKind.ConsiderEverything2)); 330Debug.Assert(TypeSymbol.Equals(conditional.Type, conditional.Alternative.Type, TypeCompareKind.ConsiderEverything2)); 408Debug.Assert(node.OperandConversion is null || (node.Operand.Type!.IsReferenceType && node.MethodOpt.GetIsNewExtensionMember())); 421TypeSymbol? operandType = node.Operand.Type; //type of the variable being incremented 458TypeSymbol? operandType = left.Type; //type of the variable being incremented 467Debug.Assert(TypeSymbol.Equals(operandType, transformedLHS.Type, TypeCompareKind.AllIgnoreOptions)); 586TypeSymbol? operandType = transformedLHS.Type; //type of the variable being incremented 660Debug.Assert(boundTemp.Type is not null); 686type: boundTemp.Type); 699Debug.Assert(boundTemp.Type is not null); 702Debug.Assert(tempValue.Type is { }); 711tempValue.Type); 725type: boundTemp.Type); 931Debug.Assert(binaryOperand.Type is { TypeKind: TypeKind.Pointer }); 932Debug.Assert(boundOne.Type is { SpecialType: SpecialType.System_Int32 }); 933return MakeBinaryOperator(node.Syntax, binaryOperatorKind, binaryOperand, boundOne, binaryOperand.Type, method: null, constrainedToTypeOpt: null); 985Debug.Assert(operand.Type is { SpecialType: SpecialType.System_Decimal }); 992Debug.Assert(operand.Type is { } && operand.Type.IsNullableType() && operand.Type.GetNullableUnderlyingType().SpecialType == SpecialType.System_Decimal); 996MethodSymbol getValueOrDefault = UnsafeGetNullableMethod(syntax, operand.Type, SpecialMember.System_Nullable_T_GetValueOrDefault); 997MethodSymbol ctor = UnsafeGetNullableMethod(syntax, operand.Type, SpecialMember.System_Nullable_T__ctor); 1008BoundExpression alternative = new BoundDefaultExpression(syntax, operand.Type); 1011return RewriteConditionalOperator(syntax, condition, consequence, alternative, ConstantValue.NotAvailable, operand.Type, isRef: false);

149Debug.Assert(rewrittenExpression.Type is { }); 150TypeSymbol expressionType = rewrittenExpression.Type;

545Debug.Assert(loweredReceiver.Type is { }); 546if (!loweredReceiver.Type.IsValueType) 830var argType = boundArgument.Type; 909result[j++] = receiver.Type ?? systemObjectType; 915result[j++] = arguments[i].Type ?? systemObjectType; 921result[j++] = right.Type ?? systemObjectType;

45: base(SpillSequenceBuilderKind, syntax, value?.Type) 174new TreeDumperNode("type", this.Type, null) 337if (refKind != RefKind.None || expression.Type?.IsRefLikeOrAllowsRefLikeType() == true) 380if (refKind != RefKind.None || expression.Type.IsReferenceType) 497if (expression.Type.IsVoidType() || sideEffectsOnly) 1045Debug.Assert(refKind == RefKind.None || !receiver.Type.IsReferenceType); 1054var receiverType = receiver.Type; 1085if (!receiver.Type.IsReferenceType && LocalRewriter.CanBePassedByReference(receiver)) 1087result = receiver.Type.IsReadOnly ? RefKind.In : RefKind.Ref; 1158Debug.Assert(condition.Type.SpecialType == SpecialType.System_Boolean); 1161var tmp = _F.SynthesizedLocal(condition.Type, kind: SynthesizedLocalKind.Spill, syntax: _F.Syntax); 1208type: node.Type)); 1265_F.ObjectEqual(_F.Local(tmp), _F.Null(left.Type)), 1297if (receiver.Type.IsReferenceType || receiver.Type.IsValueType || receiverRefKind == RefKind.None) 1317var clone = _F.SynthesizedLocal(receiver.Type, _F.Syntax, refKind: RefKind.None, kind: SynthesizedLocalKind.Spill); 1321var isNotClass = _F.IsNotNullReference(_F.Default(receiver.Type)); 1489return UpdateExpression(builder, node.Update(operand, node.Type)); 1533return UpdateExpression(builder, node.Update(expression, node.Type));

42var field = this.HoistedField.AsMember((NamedTypeSymbol)frame.Type); 60var field = this.HoistedField.AsMember((NamedTypeSymbol)frame.Type);

152Debug.Assert(thisProxyReplacement.Type is not null); 153this.cachedThis = F.SynthesizedLocal(thisProxyReplacement.Type, syntax: F.Syntax, kind: SynthesizedLocalKind.FrameCache);

98Debug.Assert(TypeSymbol.Equals(type, replacement.Type, TypeCompareKind.ConsiderEverything2)); 285Debug.Assert(_reportedError || isFieldAccessOfStruct || expr.Type!.IsTypeParameter()); 295Debug.Assert(expr.Type is not null); 296var hoistedSymbol = createHoistedSymbol(expr.Type, arg, assignedLocal);

267Debug.Assert(receiverOpt is null || receiverOpt.Type is { } && 268receiverOpt.Type.GetMembers(propertySym.Name).OfType<PropertySymbol>().Single() == propertySym); 279Debug.Assert(!(receiverOpt is { Type: ArrayTypeSymbol { IsSZArray: true } } && 439Debug.Assert(left.Type is { } && right.Type is { } && 440(left.Type.Equals(right.Type, TypeCompareKind.AllIgnoreOptions) || 442right.Type.IsErrorType() || left.Type.IsErrorType())); 444var assignment = new BoundAssignmentOperator(syntax, left, right, isRef, left.Type, hasErrors) { WasCompilerGenerated = wasCompilerGenerated }; 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); 663Debug.Assert(left.Type?.SpecialType == CodeAnalysis.SpecialType.System_Boolean); 664Debug.Assert(right.Type?.SpecialType == CodeAnalysis.SpecialType.System_Boolean); 670Debug.Assert(left.Type?.SpecialType == CodeAnalysis.SpecialType.System_Boolean); 671Debug.Assert(right.Type?.SpecialType == CodeAnalysis.SpecialType.System_Boolean); 785switch (input.Type) 794throw ExceptionUtilities.UnexpectedValue(input.Type); 919Debug.Assert(valueTypeReceiver.Type is { }); 920Debug.Assert(TypeSymbol.Equals(valueTypeReceiver.Type, referenceTypeReceiver.Type, TypeCompareKind.ConsiderEverything2)); 921return new BoundComplexConditionalReceiver(Syntax, valueTypeReceiver, referenceTypeReceiver, valueTypeReceiver.Type) { WasCompilerGenerated = true }; 926Debug.Assert(left.Type!.Equals(right.Type, TypeCompareKind.IgnoreCustomModifiersAndArraySizesAndLowerBounds | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes) || left.Type.IsErrorType()); 927Debug.Assert(left.Type.IsReferenceType); 929return new BoundNullCoalescingOperator(Syntax, left, right, leftPlaceholder: null, leftConversion: null, BoundNullCoalescingOperatorResultKind.LeftType, @checked: false, left.Type) { WasCompilerGenerated = true }; 1037Debug.Assert(result.Type is { }); 1038var resultType = type ?? result.Type; 1044Debug.Assert(result.Type is { }); 1048: new BoundSequence(Syntax, locals, sideEffects, result, result.Type) { WasCompilerGenerated = true }; 1053Debug.Assert(result.Type is { }); 1054return new BoundSpillSequence(Syntax, locals, sideEffects, result, result.Type) { WasCompilerGenerated = true }; 1083Debug.Assert(ex.Type is { SpecialType: CodeAnalysis.SpecialType.System_Int32 }); 1178Debug.Assert(array.Type is { TypeKind: TypeKind.Array }); 1184Debug.Assert(array.Type is { TypeKind: TypeKind.Array }); 1185int rank = ((ArrayTypeSymbol)array.Type).Rank; 1197Debug.Assert(array.Type is { TypeKind: TypeKind.Array }); 1198return new BoundArrayAccess(Syntax, array, indices, ((ArrayTypeSymbol)array.Type).ElementType); 1484if (TypeSymbol.Equals(type, arg.Type, TypeCompareKind.ConsiderEverything2)) 1498arg.Type is TypeParameterSymbol { AllowsRefLikeType: true } && type.IsObjectType()) 1514if (conversion.Method is { } && !TypeSymbol.Equals(conversion.Method.Parameters[0].Type, arg.Type, TypeCompareKind.ConsiderEverything2)) 1524Debug.Assert(arg.Type is { }); 1526arg.Type.IsNullableType() && 1527arg.Type.GetNullableUnderlyingType().Equals(type, TypeCompareKind.AllIgnoreOptions)) 1531return this.Call(arg, this.SpecialMethod(CodeAnalysis.SpecialMember.System_Nullable_T_get_Value).AsMember((NamedTypeSymbol)arg.Type)); 1620return new BoundCatchBlock(Syntax, ImmutableArray<LocalSymbol>.Empty, source, source.Type, exceptionFilterPrologueOpt: null, exceptionFilterOpt: null, body: block, isSynthesizedAsyncCatchAll: false); 1640Debug.Assert(expression is { Type: { SpecialType: CodeAnalysis.SpecialType.System_Boolean } }); 1641return new BoundUnaryOperator(expression.Syntax, UnaryOperatorKind.BoolLogicalNegation, expression, null, null, constrainedToTypeOpt: null, LookupResultKind.Viable, expression.Type); 1661Debug.Assert(argument.Type is { }); 1694var type = argument.Type; 1764TypeSymbol exprType = rewrittenExpr.Type; 1818LocalRewriter.UnsafeGetNullableMethod(syntax, expression.Type, CodeAnalysis.SpecialMember.System_Nullable_T_get_HasValue, Compilation, Diagnostics)); 1882return conditionalAccess.Update(conditionalAccess.Receiver, conditionalAccess.HasValueMethodOpt, whenNotNull, whenNull, conditionalAccess.Id, conditionalAccess.ForceCopyOfNullableValueType, whenNotNull.Type);

1082if (boundOperand.Kind == BoundKind.ConvertedTupleLiteral && TypeSymbol.Equals(boundOperand.Type, boundConversion.Type, TypeCompareKind.ConsiderEverything2)) 1103!TypeSymbol.Equals(nestedConversion.Type, nestedOperand.Type, TypeCompareKind.ConsiderEverything2)) 1596boundNullCoalescingOperator.Type.Equals(boundNullCoalescingOperator.LeftOperand.Type?.StrippedType(), TypeCompareKind.IgnoreCustomModifiersAndArraySizesAndLowerBounds | TypeCompareKind.IgnoreNullableModifiersForReferenceTypes))

348argumentKind = argument.Type?.IsSZArray() == true ? ArgumentKind.ParamArray : ArgumentKind.ParamCollection;

165if (!(expression.Type is null) && expression.Type.IsStringType())

982conversion.IsIdentity && parameterType.SpecialType == SpecialType.System_Object && defaultExpression.Type.IsDynamic()) 996(object)defaultExpression.Type != null && 997defaultExpression.Type.SpecialType == SpecialType.System_String || 1007else if (((conversion.IsNullable && !defaultExpression.Type.IsNullableType()) || 1008(conversion.IsObjectCreation && convertedExpression.Type.IsNullableType())) && 1025(defaultExpression.IsImplicitObjectCreation() ? convertedExpression.Type.StrippedType() : defaultExpression.Type), parameterSyntax.Identifier.ValueText);

564return TypeWithAnnotations.Create(initializerOpt?.Type);

554if ((object)initializerOpt.Type != null && !initializerOpt.Type.IsErrorType()) 556type = TypeWithAnnotations.Create(initializerOpt.Type);

208Debug.Assert(value.Type is not null); 209if (value.Type.IsValueType) 216else if (!value.Type.IsRestrictedType())

395public override TypeWithAnnotations ReturnTypeWithAnnotations => TypeWithAnnotations.Create(_getAwaiterGetResultCall.Type);

1220Assert.Equal(SpecialType.System_Collections_IEnumerable, boundNode.Expression.Type.SpecialType); 1221Assert.Equal(SymbolKind.ArrayType, ((BoundConversion)boundNode.Expression).Operand.Type.Kind); 1258Assert.Equal(SpecialType.System_String, boundNode.Expression.Type.SpecialType); 1259Assert.Equal(SpecialType.System_String, ((BoundConversion)boundNode.Expression).Operand.Type.SpecialType); 1302Assert.Equal("Enumerable", boundNode.Expression.Type.ToTestDisplayString()); 1303Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1346Assert.Equal("Enumerable", boundNode.Expression.Type.ToTestDisplayString()); 1347Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1379Assert.Equal("System.Collections.IEnumerable", boundNode.Expression.Type.ToTestDisplayString()); 1380Assert.Equal("System.Collections.IEnumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1419Assert.Equal("System.Collections.Generic.IEnumerable<System.Int32>", boundNode.Expression.Type.ToTestDisplayString()); 1420Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1461Assert.Equal(SpecialType.System_Collections_IEnumerable, boundNode.Expression.Type.SpecialType); 1462Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1500Assert.Equal(SpecialType.System_Collections_IEnumerable, boundNode.Expression.Type.SpecialType); 1501Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1681Assert.Equal(SpecialType.System_Collections_IEnumerable, boundNode.Expression.Type.SpecialType); 1682Assert.Equal(TypeKind.Dynamic, ((BoundConversion)boundNode.Expression).Operand.Type.TypeKind); 1714Assert.Equal(SpecialType.System_Collections_IEnumerable, boundNode.Expression.Type.SpecialType); 1715Assert.Equal(SymbolKind.DynamicType, ((BoundConversion)boundNode.Expression).Operand.Type.Kind); 1755Assert.Equal("Enumerable<T>", boundNode.Expression.Type.ToTestDisplayString()); 1756Assert.Equal("Enumerable<T>", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1839Assert.Equal("Enumerable<T>", boundNode.Expression.Type.ToTestDisplayString()); 1840Assert.Equal("Enumerable<T>", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 1886Assert.Equal("Enumerable", boundNode.Expression.Type.ToTestDisplayString()); 1887Assert.Equal("Enumerable", ((BoundConversion)boundNode.Expression).Operand.Type.ToTestDisplayString()); 3238Assert.Equal("C", info.GetEnumeratorInfo.Arguments.Single().Type.ToTestDisplayString()); 3248Assert.Equal("C", boundNode.Expression.Type.ToDisplayString());