212this.compilation = compilation;

96if (compilation.LanguageVersion >= MessageID.IDS_FeatureRecursivePatterns.RequiredVersion())

496if (compilation.IsFeatureEnabled(MessageID.IDS_FeatureAutoDefaultStructs)) 521if (!compilation.IsFeatureEnabled(MessageID.IDS_FeatureAutoDefaultStructs)) 1294if (compilation.IsFeatureEnabled(MessageID.IDS_FeatureAutoDefaultStructs)) 1346else if (compilation.IsFeatureEnabled(MessageID.IDS_FeatureAutoDefaultStructs)) 1597Binder.InferConstantIndexFromSystemIndex(compilation, elementAccess.Argument, length, out _) is 0)) 2653if (!type.IsFromCompilation(this.compilation)) 2821node.Type.OriginalDefinition.Equals(compilation.GetWellKnownType(WellKnownType.System_Span_T), TypeCompareKind.AllIgnoreOptions))

304SetResult(expression, resultType: type, lvalueType: type.ToTypeWithAnnotations(compilation), updateAnalyzedNullability: updateAnalyzedNullability); 309SetAnalyzedNullability(expression, resultType: type, lvalueType: type.ToTypeWithAnnotations(compilation)); 317VisitResult visitResult = _visitResult.WithLValueType(ResultType.ToTypeWithAnnotations(compilation)); 339private void SetInvalidResult() => SetResult(expression: null, _invalidType, _invalidType.ToTypeWithAnnotations(compilation), updateAnalyzedNullability: false); 510compilation.TestOnlyCompilationData is NullableAnalysisData { MaxRecursionDepth: var depth } && 910|| compilation.IsFeatureEnabled(MessageID.IDS_FeatureAutoDefaultStructs))) 1904if (compilation.TestOnlyCompilationData is NullableAnalysisData { Data: { } state }) 2105var conversionsWithoutNullability = this.compilation.Conversions; 2439if (isMaybeDefaultValue(valueType) && !allowUnconstrainedTypeParameterAnnotations(compilation)) 3080_returnTypesOpt.Add((node, result.ToTypeWithAnnotations(compilation))); 3159if (method.IsAsyncEffectivelyReturningGenericTask(compilation)) 3549var resultType = ResultType.ToTypeWithAnnotations(compilation); 3671type = valueType.ToAnnotatedTypeWithAnnotations(compilation); 4017var collectionKind = ConversionsBase.GetCollectionExpressionTypeKind(this.compilation, collectionType, out var targetElementType); 4632var lvalueType = resultType.ToTypeWithAnnotations(compilation); 4710arg.ToTypeWithAnnotations(compilation)); 4824placeholderBuilder.Add(CreatePlaceholderIfNecessary(expressionNoConversion, expressionType.ToTypeWithAnnotations(compilation))); 4853inferredType = TypeWithState.Create(inferredType.Type, elementState).ToTypeWithAnnotations(compilation); 5016TypeSymbol.Equals(node.Indices[0].Type, compilation.GetWellKnownType(WellKnownType.System_Range), TypeCompareKind.ConsiderEverything2)) 5285SetResult(binary, inferredResult, inferredResult.ToTypeWithAnnotations(compilation)); 5403[new BoundExpressionWithNullability(leftOperand.Syntax, leftOperand, leftUnderlyingType.ToTypeWithAnnotations(compilation).NullableAnnotation, leftUnderlyingType.Type), 5404new BoundExpressionWithNullability(rightOperand.Syntax, rightOperand, rightUnderlyingType.ToTypeWithAnnotations(compilation).NullableAnnotation, rightUnderlyingType.Type)], 6237BoundExpression consequencePlaceholder = CreatePlaceholderIfNecessary(consequence, consequenceRValue.ToTypeWithAnnotations(compilation)); 6238BoundExpression alternativePlaceholder = CreatePlaceholderIfNecessary(alternative, alternativeRValue.ToTypeWithAnnotations(compilation)); 6737var isStaticEqualsMethod = method.Equals(compilation.GetSpecialTypeMember(SpecialMember.System_Object__EqualsObjectObject)) 6738|| method.Equals(compilation.GetSpecialTypeMember(SpecialMember.System_Object__ReferenceEquals)); 6740isWellKnownEqualityMethodOrImplementation(compilation, method, receiverType.Type, WellKnownMember.System_Collections_Generic_IEqualityComparer_T__Equals)) 6748.Equals(compilation.GetSpecialTypeMember(SpecialMember.System_Object__Equals)); 6751isWellKnownEqualityMethodOrImplementation(compilation, method, receiverType.Type, WellKnownMember.System_IEquatable_T__Equals))) 6892return method.Equals(compilation.GetWellKnownTypeMember(WellKnownMember.System_Threading_Interlocked__CompareExchange), SymbolEqualityComparer.ConsiderEverything.CompareKind) 6893|| method.OriginalDefinition.Equals(compilation.GetWellKnownTypeMember(WellKnownMember.System_Threading_Interlocked__CompareExchange_T), SymbolEqualityComparer.ConsiderEverything.CompareKind); 6976else if (method.OriginalDefinition == compilation.GetSpecialTypeMember(SpecialMember.System_Nullable_T_get_Value)) 7994var varType = worstCaseParameterWithState.ToAnnotatedTypeWithAnnotations(compilation); 8000SetAnalyzedNullability(discard, new VisitResult(parameterWithState, parameterWithState.ToTypeWithAnnotations(compilation)), isLvalue: true); 8436var argumentType = visitResult.RValueType.ToTypeWithAnnotations(compilation); 8471new ConstraintsHelper.CheckConstraintsArgs(compilation, _conversions, includeNullability: true, NoLocation.Singleton, diagnostics: null, template: CompoundUseSiteInfo<AssemblySymbol>.Discarded), 8500var constraintsArgs = new ConstraintsHelper.CheckConstraintsArgs(compilation, _conversions, includeNullability: false, location: NoLocation.Singleton, diagnostics: null, template: CompoundUseSiteInfo<AssemblySymbol>.Discarded); 8912ImmutableArray<TypeWithAnnotations> elementTypesWithAnnotations = elementTypes.SelectAsArray(a => a.ToTypeWithAnnotations(compilation)); 8934tupleOpt.CheckConstraints(new ConstraintsHelper.CheckConstraintsArgs(compilation, _conversions, includeNullability: true, node.Syntax.Location, diagnostics: null), 9130compilation, 9186compilation, 9201compilation, 9992var visitResult = new VisitResult(resultType, resultType.ToTypeWithAnnotations(compilation)); 10043return compilation.GetSpecialType(SpecialType.System_Nullable_T).Construct(ImmutableArray.Create(underlying)); 10322arguments.Add(CreatePlaceholderIfNecessary(receiverOpt, receiverType.ToTypeWithAnnotations(compilation))); 10497var lvalueType = rightState.ToTypeWithAnnotations(compilation); 10705placeholderArgs.Add(CreatePlaceholderIfNecessary(right, rightResult.ToTypeWithAnnotations(compilation))); 10803_variables.SetType(local.LocalSymbol, operandType.ToAnnotatedTypeWithAnnotations(compilation)); 10925expr = CreatePlaceholderIfNecessary(expr, rightResult.ToTypeWithAnnotations(compilation)); 11086var operandTypeWithAnnotations = operandType.ToTypeWithAnnotations(compilation); 11506if (getMethod == compilation.GetSpecialTypeMember(SpecialMember.System_Nullable_T_get_Value)) 11510if (getMethod == compilation.GetSpecialTypeMember(SpecialMember.System_Nullable_T_get_HasValue)) 11524var getValue = (MethodSymbol)compilation.GetSpecialTypeMember(SpecialMember.System_Nullable_T_get_Value); 11620targetTypeWithAnnotations = resultTypeWithState.ToTypeWithAnnotations(compilation); 11630else if (ForEachLoopBinder.IsIEnumerableT(collectionExpression.Type.OriginalDefinition, isAsync, compilation)) 11635targetTypeWithAnnotations = TypeWithAnnotations.Create(ForEachLoopBinder.GetIEnumerableOfT(resultType, isAsync, compilation, ref discardedUseSiteInfo, out bool foundMultiple, needSupportForRefStructInterfaces: out _)); 11670SetAnalyzedNullability(collectionExpression, new VisitResult(convertedResult, convertedResult.ToTypeWithAnnotations(compilation))); 11702NamedTypeSymbol spanType = compilation.GetWellKnownType(wellKnownSpan); 11770TypeWithAnnotations sourceType = sourceState.ToTypeWithAnnotations(compilation); 11815destinationType = sourceState.ToAnnotatedTypeWithAnnotations(compilation); 12017[new BoundExpressionWithNullability(operand.Syntax, operand, operandType.ToTypeWithAnnotations(compilation).NullableAnnotation, operandType.Type)], 12650new VisitResult(result, result.ToTypeWithAnnotations(compilation)), 12801TypeWithAnnotations elementType = InMethodBinder.GetIteratorElementTypeFromReturnType(compilation, RefKind.None,

387var expressionTypeWithAnnotations = expressionTypeWithState.ToTypeWithAnnotations(compilation); 684var inferredType = value.ToTypeWithAnnotations(compilation, asAnnotatedType: boundLocal.DeclarationKind == BoundLocalDeclarationKind.WithInferredType); 942placeholderBuilder.Add(CreatePlaceholderIfNecessary(expression, armType.ToTypeWithAnnotations(compilation)));