FirstOrDefault

386 references to FirstOrDefault

Aspire.Hosting.Integration.Analyzers (2)

AspireExportAnalyzer.cs (2)

160var location = attributeSyntax?.GetLocation() ?? method.Locations.FirstOrDefault() ?? Location.None; 254var location = method.Locations.FirstOrDefault() ?? Location.None;

ConfigurationSchemaGenerator (2)

ConfigSchemaEmitter.cs (1)

384propertySymbol = typeSymbol.GetMembers(property.Name).FirstOrDefault() as IPropertySymbol;

RuntimeSource\Configuration.Binder\ConfigurationBindingGenerator.Parser.cs (1)

675string configKeyName = attributeData?.ConstructorArguments.FirstOrDefault().Value as string ?? propertyName;

GenerateDocumentationAndConfigFiles (17)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

93return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

38var firstArg = invocation.Arguments.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

103Hash.Combine(x.Locations.FirstOrDefault(), currentHash)); 107=> Hash.Combine(x.Locations.FirstOrDefault(), currentHash); 117return Hash.Combine(x.Locations.FirstOrDefault(), currentHash); 297=> Hash.Combine(x.Locations.FirstOrDefault(), currentHash);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ISolutionExtensions.cs (1)

161var documentId = solution.GetDocumentIdsWithFilePath(location.GetLineSpan().Path).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ITypeInferenceServiceExtensions.cs (1)

110return types.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\SyntaxGeneratorExtensions_CreateEqualsMethod.cs (1)

91.Single(m => containingType.Equals(m.Parameters.FirstOrDefault()?.Type));

ILLink.RoslynAnalyzer (3)

TrimAnalysis\SingleValueExtensions.cs (1)

18var underlyingType = (type as INamedTypeSymbol)?.TypeArguments.FirstOrDefault();

TrimAnalysis\TrimDataFlowAnalysis.cs (2)

94if (block.Block.Operations.FirstOrDefault() is not IOperation op) 116if (block.Block.Operations.FirstOrDefault() is IOperation firstBlockOp)

Microsoft.Analyzers.Local (7)

ApiLifecycle\ApiLifecycleAnalyzer.cs (7)

74context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.NewSymbolsMustBeMarkedExperimental, symbol.Locations.FirstOrDefault(), symbol)); 111context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.ExperimentalSymbolsCantBeMarkedObsolete, symbol.Locations.FirstOrDefault(), symbol)); 118context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.PublishedSymbolsCantBeMarkedExperimental, symbol.Locations.FirstOrDefault(), symbol)); 125context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.PublishedSymbolsCantChange, symbol.Locations.FirstOrDefault(), symbol)); 133context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.PublishedSymbolsCantChange, symbol.Locations.FirstOrDefault(), symbol)); 154context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.NewSymbolsMustBeMarkedExperimental, type.Locations.FirstOrDefault(), type)); 158context.ReportDiagnostic(Diagnostic.Create(DiagDescriptors.ExperimentalSymbolsCantBeMarkedObsolete, type.Locations.FirstOrDefault(), type));

Microsoft.AspNetCore.App.Analyzers (7)

Kestrel\ListenOnIPv6AnyAnalyzer.cs (2)

47var addressArgument = kestrelOptionsListenInvocation?.Arguments.FirstOrDefault(); 79var localVariableDeclaration = localReferenceOperation.Local.DeclaringSyntaxReferences.FirstOrDefault();

RouteEmbeddedLanguage\RoutePatternHighlighter.cs (1)

115.Where(i => semanticModel.GetSymbolInfo(i) is var symbolInfo && SymbolEqualityComparer.Default.Equals(symbolInfo.Symbol ?? symbolInfo.CandidateSymbols.FirstOrDefault(), matchingParameter));

RouteHandlers\DetectMismatchedParameterOptionality.cs (1)

35var location = parameter.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax().GetLocation();

src\aspnetcore\src\Shared\Roslyn\CodeAnalysisExtensions.cs (1)

187var firstArg = invocation.Arguments.FirstOrDefault();

src\aspnetcore\src\Shared\RoslynUtils\SymbolExtensions.cs (2)

223=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault(); 320var underlyingType = namedType.TypeArguments.FirstOrDefault();

Microsoft.AspNetCore.Components.Analyzers (7)

AuthenticationStateProviderAnalyzer.cs (1)

80namedType.Locations.FirstOrDefault(),

ComponentParameterAnalyzer.cs (1)

76var propertyLocation = property.Locations.FirstOrDefault();

InternalUsageAnalyzer.cs (2)

168symbolForDiagnostic.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax().GetLocation() ?? Location.None, 178symbolForDiagnostic.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax().GetLocation() ?? Location.None,

JSInvokableAnalyzer.cs (1)

49var methodLocation = method.Locations.FirstOrDefault();

PersistentStateAnalyzer.cs (1)

73var propertyLocation = propertySymbol.Locations.FirstOrDefault();

SupplyParameterFromFormAnalyzer.cs (1)

73var propertyLocation = propertySymbol.Locations.FirstOrDefault();

Microsoft.AspNetCore.Components.SdkAnalyzers (3)

ComponentParameterAnalyzer.cs (1)

70var propertyLocation = property.Locations.FirstOrDefault();

InternalUsageAnalyzer.cs (2)

Microsoft.AspNetCore.Http.RequestDelegateGenerator (3)

src\aspnetcore\src\Shared\RoslynUtils\SymbolExtensions.cs (2)

223=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault(); 320var underlyingType = namedType.TypeArguments.FirstOrDefault();

StaticRouteHandlerModel\EndpointParameter.cs (1)

159var constructorArgument = keyedServicesAttribute.ConstructorArguments.FirstOrDefault();

Microsoft.AspNetCore.Mvc.Analyzers (1)

src\aspnetcore\src\Shared\Roslyn\CodeAnalysisExtensions.cs (1)

187var firstArg = invocation.Arguments.FirstOrDefault();

Microsoft.AspNetCore.Mvc.Api.Analyzers (1)

src\aspnetcore\src\Shared\Roslyn\CodeAnalysisExtensions.cs (1)

187var firstArg = invocation.Arguments.FirstOrDefault();

Microsoft.AspNetCore.OpenApi.SourceGenerators (3)

XmlComments\XmlComment.InheritDoc.cs (3)

292return methodSymbol.ExplicitOrImplicitInterfaceImplementations().FirstOrDefault(); 305return typeSymbol.Interfaces.FirstOrDefault(); 314return memberSymbol.ExplicitOrImplicitInterfaceImplementations().FirstOrDefault();

Microsoft.Build (1)

src\msbuild\artifacts\.packages\microsoft.codeanalysis.collections\5.0.0-1.25277.114\contentFiles\cs\net9.0\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

Microsoft.CodeAnalysis (1)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

Microsoft.CodeAnalysis.Analyzers (22)

MetaAnalyzers\DiagnosticDescriptorCreationAnalyzer.cs (1)

327if (compilationEndContextType.GetMembers(DiagnosticWellKnownNames.ReportDiagnosticName).FirstOrDefault() is IMethodSymbol compilationEndReportDiagnosticMethod)

MetaAnalyzers\ReportDiagnosticAnalyzer.cs (3)

154if (this.DiagnosticAnalyzer.GetMembers(DiagnosticWellKnownNames.SupportedDiagnosticsName).FirstOrDefault() is IPropertySymbol supportedDiagnosticBaseProperty) 162SyntaxReference? syntaxRef = supportedDiagnosticsProperty.GetMethod.DeclaringSyntaxReferences.FirstOrDefault(); 223SyntaxReference? syntaxRef = local.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\CodeMetrics\MetricsHelper.cs (1)

212var parameterSyntaxRef = parameter.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

93return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

38var firstArg = invocation.Arguments.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ISolutionExtensions.cs (1)

161var documentId = solution.GetDocumentIdsWithFilePath(location.GetLineSpan().Path).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ITypeInferenceServiceExtensions.cs (1)

110return types.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\SyntaxGeneratorExtensions_CreateEqualsMethod.cs (1)

91.Single(m => containingType.Equals(m.Parameters.FirstOrDefault()?.Type));

Microsoft.CodeAnalysis.AnalyzerUtilities (15)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\CodeMetrics\MetricsHelper.cs (1)

212var parameterSyntaxRef = parameter.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

93return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

38var firstArg = invocation.Arguments.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

Microsoft.CodeAnalysis.CodeStyle (16)

src\9547feb31df4cc5d\AbstractRemoveUnusedParametersAndValuesDiagnosticAnalyzer.SymbolStartAnalyzer.cs (1)

263var methodSyntax = method.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken);

src\roslyn\src\Analyzers\Core\Analyzers\Helpers\HashCodeAnalyzer\HashCodeAnalyzer.cs (1)

35if (objectType?.GetMembers(nameof(GetHashCode)).FirstOrDefault() is not IMethodSymbol objectGetHashCodeMethod)

src\roslyn\src\Analyzers\Core\Analyzers\NamingStyle\NamingStyleDiagnosticAnalyzerBase.cs (2)

58var sourceTree = symbolContext.Symbol.Locations.FirstOrDefault()?.SourceTree; 86if (symbol?.Locations.FirstOrDefault()?.SourceTree is not { } sourceTree)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

Microsoft.CodeAnalysis.CodeStyle.Fixes (7)

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateConstructor\GenerateConstructorHelpers.cs (1)

280return membersArray.FirstOrDefault(m => m.Name.Equals(memberName, StringComparison.Ordinal)) ?? membersArray.FirstOrDefault();

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateDefaultConstructors\AbstractGenerateDefaultConstructorCodeFixProvider.cs (1)

24var diagnostic = context.Diagnostics.FirstOrDefault();

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateVariable\AbstractGenerateVariableService.State.cs (2)

361AfterThisLocation ??= previousAssignedSymbol?.Locations.FirstOrDefault(); 362BeforeThisLocation ??= nextAssignedSymbol?.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ISolutionExtensions.cs (1)

161var documentId = solution.GetDocumentIdsWithFilePath(location.GetLineSpan().Path).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ITypeInferenceServiceExtensions.cs (1)

110return types.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\SyntaxGeneratorExtensions_CreateEqualsMethod.cs (1)

91.Single(m => containingType.Equals(m.Parameters.FirstOrDefault()?.Type));

Microsoft.CodeAnalysis.CSharp (20)

Binder\Binder_Conversions.cs (1)

1716constructor = candidateConstructors.FirstOrDefault();

Binder\Binder_Statements.cs (1)

3422LocalSymbol local = locals.FirstOrDefault();

BoundTree\BoundExpressionExtensions.cs (1)

206var ctor = expr.Type.GetMembers(WellKnownMemberNames.InstanceConstructorName).FirstOrDefault();

Compilation\CSharpCompilation.cs (2)

4908bool value = SyntaxTrees.FirstOrDefault()?.Options?.HasFeature(CodeAnalysis.Feature.NullablePublicOnly) == true; 5015CSharpSyntaxTree? firstTree = (CSharpSyntaxTree?)SyntaxTrees.FirstOrDefault();

Compilation\CSharpSemanticModel.cs (2)

3292LocalSymbol local = foreachBinder.GetDeclaredLocalsForScope(forEachStatement).FirstOrDefault(); 3331LocalSymbol local = catchBinder.GetDeclaredLocalsForScope(catchClause).FirstOrDefault();

FlowAnalysis\DataFlowsOutWalker.cs (1)

161var local = ((BoundCatchBlock)node).Locals.FirstOrDefault();

FlowAnalysis\NullableWalker.cs (1)

9479tupleType.GetMembers(NamedTypeSymbol.ValueTupleRestFieldName).FirstOrDefault() is FieldSymbol restField)

FlowAnalysis\VariablesDeclaredWalker.cs (1)

231var local = catchBlock.Locals.FirstOrDefault();

Symbols\Source\SourceEventSymbol.cs (1)

901EventSymbol? explicitlyImplementedEvent = ExplicitInterfaceImplementations.FirstOrDefault();

Symbols\Source\SourceMemberContainerSymbol.cs (1)

2228Symbol? lastSym = typesByName?.TryGetValue(name, out var types) == true ? types.FirstOrDefault() : null;

Symbols\Source\SourceModuleSymbol.cs (1)

639var options = (CSharpParseOptions?)compilation.SyntaxTrees.FirstOrDefault()?.Options;

Symbols\Source\SourceNamedTypeSymbol.cs (1)

1978if (Indexers.FirstOrDefault() is PropertySymbol indexerSymbol)

Symbols\Source\SourcePropertyAccessorSymbol.cs (2)

652PropertySymbol? explicitlyImplementedPropertyOpt = IsExplicitInterfaceImplementation ? _property.ExplicitInterfaceImplementations.FirstOrDefault() : null; 729PropertySymbol? explicitlyImplementedPropertyOpt = _property.ExplicitInterfaceImplementations.FirstOrDefault();

Symbols\Source\SourcePropertySymbolBase.cs (1)

1017PropertySymbol? explicitlyImplementedProperty = ExplicitInterfaceImplementations.FirstOrDefault();

Symbols\Source\SourceSimpleParameterSymbol.cs (1)

27: this(owner, parameterType, ordinal, refKind, name, locations.FirstOrDefault())

Symbols\SymbolExtensions.cs (2)

351SyntaxReference? reference = symbol.DeclaringSyntaxReferences.FirstOrDefault(); 358reference = containingSymbol.DeclaringSyntaxReferences.FirstOrDefault();

Microsoft.CodeAnalysis.CSharp.CodeStyle (7)

src\roslyn\src\Analyzers\CSharp\Analyzers\InlineDeclaration\CSharpInlineDeclarationDiagnosticAnalyzer.cs (1)

138var localReference = outLocalSymbol.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Analyzers\CSharp\Analyzers\MakeLocalFunctionStatic\MakeLocalFunctionStaticHelper.cs (1)

32var node = calledLocationFunction.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax();

src\roslyn\src\Analyzers\CSharp\Analyzers\NamingStyle\CSharpNamingStyleDiagnosticAnalyzer.cs (1)

31&& symbol.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() is ParameterSyntax

src\roslyn\src\Analyzers\CSharp\Analyzers\UseLabeledJumpStatements\CSharpUseLabeledJumpStatementsHelpers.cs (1)

125labeledStatement = label?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken) as LabeledStatementSyntax;

src\roslyn\src\Analyzers\CSharp\Analyzers\UsePatternMatching\CSharpAsAndNullCheckDiagnosticAnalyzer.cs (1)

332declarator = localSymbol?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() as VariableDeclaratorSyntax;

src\roslyn\src\Analyzers\CSharp\Analyzers\UseSystemThreadingLock\CSharpUseSystemThreadingLockDiagnosticAnalyzer.cs (1)

66if (lockType.GetTypeMembers("Scope").FirstOrDefault() is not { TypeKind: TypeKind.Struct, IsRefLikeType: true, DeclaredAccessibility: Accessibility.Public })

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\CSharp\Extensions\ITypeSymbolExtensions.cs (1)

53c => c.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() is TypeDeclarationSyntax);

Microsoft.CodeAnalysis.CSharp.CodeStyle.Fixes (16)

src\roslyn\src\Analyzers\CSharp\CodeFixes\ConvertToAsync\CSharpConvertToAsyncMethodCodeFixProvider.cs (1)

76var methodReference = methodSymbol.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Analyzers\CSharp\CodeFixes\ConvertToRecord\ConvertToRecordHelpers.cs (6)

315=> member.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() == 316param.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax()); 539else if (TryGetAssignmentFromParameterWithExplicitCast(bodyOps.FirstOrDefault(), parameter, out otherC)) 967if (bodyOps.FirstOrDefault() is not IConditionalOperation 1102equatableType.GetMembers(nameof(Equals)).FirstOrDefault() is IMethodSymbol equatableEquals && 1109var objectEquals = objectType?.GetMembers(nameof(Equals)).FirstOrDefault() as IMethodSymbol;

src\roslyn\src\Analyzers\CSharp\CodeFixes\GenerateConstructor\CSharpGenerateConstructorService.cs (1)

134typeToGenerateIn = symbolInfo.CandidateSymbols.FirstOrDefault()?.ContainingSymbol as INamedTypeSymbol;

src\roslyn\src\Analyzers\CSharp\CodeFixes\Nullable\CSharpDeclareAsNullableCodeFixProvider.cs (1)

303if (parameterSymbol?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken) is ParameterSyntax parameterSyntax &&

src\roslyn\src\Analyzers\CSharp\CodeFixes\ReplaceDefaultLiteral\CSharpReplaceDefaultLiteralCodeFixProvider.cs (1)

88type.GetMembers("None").FirstOrDefault() is IFieldSymbol field && IsZero(field.ConstantValue))

src\roslyn\src\Analyzers\CSharp\CodeFixes\UseUtf8StringLiteral\UseUtf8StringLiteralCodeFixProvider.cs (1)

119.Where(a => a.Initializer?.ElementValues.FirstOrDefault()?.Syntax.SpanStart == diagnostic.Location.SourceSpan.Start)

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\ContextQuery\SyntaxTreeExtensions.cs (2)

1021if (conditionOrType.GetBestOrAllSymbols().FirstOrDefault() is { Kind: SymbolKind.NamedType }) 3052var symbol = leftHandBinding.GetBestOrAllSymbols().FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\TypeSyntaxExtensions.cs (1)

45var firstSymbol = symbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\LanguageServices\CSharpTypeInferenceService.TypeInferrer.cs (2)

1696var type = types.FirstOrDefault().InferredType.GetDelegateType(this.Compilation); 1906return InferTypes(identifierName).FirstOrDefault().InferredType;

Microsoft.CodeAnalysis.CSharp.Features (27)

ChangeSignature\CSharpChangeSignatureService.cs (1)

182return (symbolInfo.Symbol ?? symbolInfo.CandidateSymbols.FirstOrDefault(), parameterIndex);

CodeRefactorings\ExtractClass\CSharpExtractClassCodeRefactoringProvider.cs (1)

42return relaventNodes.FirstOrDefault();

Completion\KeywordRecommenders\RefKeywordRecommender.cs (1)

117return methodSymbol.Parameters.FirstOrDefault();

ExtractMethod\CSharpMethodExtractor.PostProcessor.cs (1)

84if (statements.FirstOrDefault() == null)

GenerateConstructors\CSharpGenerateConstructorsCodeRefactoringProvider.cs (1)

72return property.ContainingType.GetMembers(accessedMemberName).FirstOrDefault() as IFieldSymbol;

GoToDefinition\CSharpGoToDefinitionSymbolService.cs (2)

58return symbol.Locations.FirstOrDefault()?.SourceSpan.Start ?? 0; 72return target.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax()?.SpanStart;

ImplementInterface\CSharpImplementExplicitlyCodeRefactoringProvider.cs (1)

55var implReferences = references.FirstOrDefault();

QuickInfo\OnTheFlyDocsUtilities.cs (1)

23var typeSyntaxReference = typeSymbol.DeclaringSyntaxReferences.FirstOrDefault();

SignatureHelp\ElementAccessExpressionSignatureHelpProvider.cs (1)

210expressionType = errorType.CandidateSymbols.FirstOrDefault().GetSymbolType()

src\roslyn\src\Analyzers\CSharp\Analyzers\InlineDeclaration\CSharpInlineDeclarationDiagnosticAnalyzer.cs (1)

138var localReference = outLocalSymbol.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Analyzers\CSharp\Analyzers\MakeLocalFunctionStatic\MakeLocalFunctionStaticHelper.cs (1)

32var node = calledLocationFunction.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax();

src\roslyn\src\Analyzers\CSharp\Analyzers\NamingStyle\CSharpNamingStyleDiagnosticAnalyzer.cs (1)

31&& symbol.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() is ParameterSyntax

src\roslyn\src\Analyzers\CSharp\Analyzers\UseLabeledJumpStatements\CSharpUseLabeledJumpStatementsHelpers.cs (1)

125labeledStatement = label?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken) as LabeledStatementSyntax;

src\roslyn\src\Analyzers\CSharp\Analyzers\UsePatternMatching\CSharpAsAndNullCheckDiagnosticAnalyzer.cs (1)

332declarator = localSymbol?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() as VariableDeclaratorSyntax;

src\roslyn\src\Analyzers\CSharp\Analyzers\UseSystemThreadingLock\CSharpUseSystemThreadingLockDiagnosticAnalyzer.cs (1)

66if (lockType.GetTypeMembers("Scope").FirstOrDefault() is not { TypeKind: TypeKind.Struct, IsRefLikeType: true, DeclaredAccessibility: Accessibility.Public })

src\roslyn\src\Analyzers\CSharp\CodeFixes\ConvertToAsync\CSharpConvertToAsyncMethodCodeFixProvider.cs (1)

76var methodReference = methodSymbol.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Analyzers\CSharp\CodeFixes\ConvertToRecord\ConvertToRecordHelpers.cs (6)

src\roslyn\src\Analyzers\CSharp\CodeFixes\GenerateConstructor\CSharpGenerateConstructorService.cs (1)

134typeToGenerateIn = symbolInfo.CandidateSymbols.FirstOrDefault()?.ContainingSymbol as INamedTypeSymbol;

src\roslyn\src\Analyzers\CSharp\CodeFixes\Nullable\CSharpDeclareAsNullableCodeFixProvider.cs (1)

303if (parameterSymbol?.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken) is ParameterSyntax parameterSyntax &&

src\roslyn\src\Analyzers\CSharp\CodeFixes\ReplaceDefaultLiteral\CSharpReplaceDefaultLiteralCodeFixProvider.cs (1)

88type.GetMembers("None").FirstOrDefault() is IFieldSymbol field && IsZero(field.ConstantValue))

src\roslyn\src\Analyzers\CSharp\CodeFixes\UseUtf8StringLiteral\UseUtf8StringLiteralCodeFixProvider.cs (1)

119.Where(a => a.Initializer?.ElementValues.FirstOrDefault()?.Syntax.SpanStart == diagnostic.Location.SourceSpan.Start)

Microsoft.CodeAnalysis.CSharp.NetAnalyzers (2)

Microsoft.CodeQuality.Analyzers\QualityGuidelines\CSharpAvoidDuplicateElementInitializationFixer.cs (1)

32var diagnostic = context.Diagnostics.FirstOrDefault();

Microsoft.NetCore.Analyzers\Performance\CSharpPreferDictionaryTryMethodsOverContainsKeyGuardFixer.cs (1)

29var diagnostic = context.Diagnostics.FirstOrDefault();

Microsoft.CodeAnalysis.CSharp.Workspaces (11)

Recommendations\CSharpRecommendationServiceRunner.cs (2)

319var declaringSyntax = label.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken); 710if (leftHandBinding.GetBestOrAllSymbols().FirstOrDefault() is INamedTypeSymbol or INamespaceSymbol or IAliasSymbol)

Simplification\Simplifiers\ExpressionSimplifier.cs (1)

144var syntaxRef = aliasReplacement.DeclaringSyntaxReferences.FirstOrDefault();

Simplification\Simplifiers\NameSimplifier.cs (2)

120var syntaxRef = aliasReplacement.DeclaringSyntaxReferences.FirstOrDefault(); 448var argumentDecl = argument.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\CSharp\Extensions\ITypeSymbolExtensions.cs (1)

53c => c.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() is TypeDeclarationSyntax);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\ContextQuery\SyntaxTreeExtensions.cs (2)

1021if (conditionOrType.GetBestOrAllSymbols().FirstOrDefault() is { Kind: SymbolKind.NamedType }) 3052var symbol = leftHandBinding.GetBestOrAllSymbols().FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\TypeSyntaxExtensions.cs (1)

45var firstSymbol = symbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\LanguageServices\CSharpTypeInferenceService.TypeInferrer.cs (2)

1696var type = types.FirstOrDefault().InferredType.GetDelegateType(this.Compilation); 1906return InferTypes(identifierName).FirstOrDefault().InferredType;

Microsoft.CodeAnalysis.Extensions.Package (5)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

Microsoft.CodeAnalysis.Features (22)

ChangeSignature\AbstractChangeSignatureService.cs (2)

155var declarationLocation = symbol.Locations.FirstOrDefault(); 166var reference = symbol.DeclaringSyntaxReferences.FirstOrDefault();

ChangeSignature\DelegateInvokeMethodReferenceFinder.cs (1)

48var beginInvoke = symbol.ContainingType.GetMembers(WellKnownMemberNames.DelegateBeginInvokeName).FirstOrDefault();

Completion\Providers\AbstractMemberInsertingCompletionProvider.cs (1)

133var member = symbols.FirstOrDefault();

EditAndContinue\AbstractEditAndContinueAnalyzer.cs (3)

4829var beginInvokeMethod = delegateType.GetMembers(methodName).FirstOrDefault(); 5802return type.StaticConstructors.FirstOrDefault(); 6441symbol.Locations.FirstOrDefault()?.SourceSpan ?? symbol.ContainingSymbol.Locations.First().SourceSpan;

FullyQualify\AbstractFullyQualifyService.cs (1)

203var member = container.GetMembers(name).FirstOrDefault();

GenerateType\AbstractGenerateTypeService.Editor.cs (1)

603var symbol = membersArray.FirstOrDefault(m => m.Name.Equals(expectedFieldName, StringComparison.Ordinal)) ?? membersArray.FirstOrDefault();

GoToDefinition\AbstractGoToDefinitionSymbolService.cs (1)

35?? semanticInfo.ReferencedSymbols.FirstOrDefault()

MetadataAsSource\MetadataAsSourceFileService.cs (1)

203var documentId = workspace.CurrentSolution.GetDocumentIdsWithFilePath(filePath).FirstOrDefault();

MoveStaticMembers\MoveStaticMembersWithDialogCodeAction.cs (1)

60.Select(symbol => symbol.Locations.FirstOrDefault())

QuickInfo\CommonSemanticQuickInfoProvider.cs (1)

127&& !ErrorVisitor.ContainsError(symbols.FirstOrDefault());

src\9547feb31df4cc5d\AbstractRemoveUnusedParametersAndValuesDiagnosticAnalyzer.SymbolStartAnalyzer.cs (1)

263var methodSyntax = method.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax(cancellationToken);

src\roslyn\src\Analyzers\Core\Analyzers\Helpers\HashCodeAnalyzer\HashCodeAnalyzer.cs (1)

35if (objectType?.GetMembers(nameof(GetHashCode)).FirstOrDefault() is not IMethodSymbol objectGetHashCodeMethod)

src\roslyn\src\Analyzers\Core\Analyzers\NamingStyle\NamingStyleDiagnosticAnalyzerBase.cs (2)

58var sourceTree = symbolContext.Symbol.Locations.FirstOrDefault()?.SourceTree; 86if (symbol?.Locations.FirstOrDefault()?.SourceTree is not { } sourceTree)

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateConstructor\GenerateConstructorHelpers.cs (1)

280return membersArray.FirstOrDefault(m => m.Name.Equals(memberName, StringComparison.Ordinal)) ?? membersArray.FirstOrDefault();

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateDefaultConstructors\AbstractGenerateDefaultConstructorCodeFixProvider.cs (1)

24var diagnostic = context.Diagnostics.FirstOrDefault();

src\roslyn\src\Analyzers\Core\CodeFixes\GenerateVariable\AbstractGenerateVariableService.State.cs (2)

361AfterThisLocation ??= previousAssignedSymbol?.Locations.FirstOrDefault(); 362BeforeThisLocation ??= nextAssignedSymbol?.Locations.FirstOrDefault();

StackTraceExplorer\StackTraceExplorerService.cs (1)

88var documentId = solution.GetDocumentIdsWithFilePath(fileName).FirstOrDefault();

Microsoft.CodeAnalysis.NetAnalyzers (64)

Microsoft.CodeQuality.Analyzers\ApiDesignGuidelines\EquatableAnalyzer.cs (1)

91if (constructedEquatable.GetMembers("Equals").FirstOrDefault() is not IMethodSymbol equatableEqualsMethod ||

Microsoft.CodeQuality.Analyzers\ApiDesignGuidelines\ImplementIDisposableCorrectly.cs (2)

141if (disposableType.GetMembers(DisposeMethodName).FirstOrDefault() is not IMethodSymbol disposeInterfaceMethod) 152if (garbageCollectorType.GetMembers(SuppressFinalizeMethodName).FirstOrDefault() is not IMethodSymbol suppressFinalizeMethod)

Microsoft.CodeQuality.Analyzers\ApiDesignGuidelines\OperatorOverloadsHaveNamedAlternates.cs (1)

126ExpectedAlternateMethodGroup? expectedGroup = GetExpectedAlternateMethodGroup(operatorName, methodSymbol.ReturnType, methodSymbol.Parameters.FirstOrDefault()?.Type);

Microsoft.CodeQuality.Analyzers\ApiDesignGuidelines\OperatorOverloadsHaveNamedAlternates.Fixer.cs (1)

131ITypeSymbol? parameterType = operatorOverloadSymbol.Parameters.FirstOrDefault()?.Type;

Microsoft.CodeQuality.Analyzers\QualityGuidelines\AvoidMultipleEnumerations\AvoidMultipleEnumerationsHelpers.cs (2)

421var method = nonGenericIEnumerable.GetMembers(WellKnownMemberNames.GetEnumeratorMethodName).FirstOrDefault(); 430var method = genericIEnumerable.GetMembers(WellKnownMemberNames.GetEnumeratorMethodName).FirstOrDefault();

Microsoft.CodeQuality.Analyzers\QualityGuidelines\DoNotInitializeUnnecessarily.cs (2)

47IFieldSymbol? field = init.InitializedFields.FirstOrDefault(); 71IPropertySymbol? prop = init.InitializedProperties.FirstOrDefault();

Microsoft.CodeQuality.Analyzers\QualityGuidelines\DoNotPassDisposablesIntoUnawaitedTasks.cs (1)

100.Declarators.FirstOrDefault();

Microsoft.NetCore.Analyzers\ImmutableCollections\DoNotCallToImmutableCollectionOnAnImmutableCollectionValue.Fixer.cs (1)

33var diagnostic = context.Diagnostics.FirstOrDefault();

Microsoft.NetCore.Analyzers\InteropServices\PInvokeDiagnosticAnalyzer.cs (1)

120Location? defaultLocation = dllAttribute == null ? methodSymbol.Locations.FirstOrDefault() : GetAttributeLocation(dllAttribute);

Microsoft.NetCore.Analyzers\Performance\PreferConvertToHexStringOverBitConverter.Fixer.cs (1)

42var diagnostic = context.Diagnostics.FirstOrDefault();

Microsoft.NetCore.Analyzers\Performance\UseCountProperly.cs (1)

702if (type.GetMembers(propertyName).FirstOrDefault() is IPropertySymbol property)

Microsoft.NetCore.Analyzers\Runtime\AvoidConstArrays.cs (1)

83argumentOperation = invocationOperation.Arguments.FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\AvoidZeroLengthArrayAllocations.cs (1)

59if (typeSymbol.GetMembers(ArrayEmptyMethodName).FirstOrDefault() is IMethodSymbol methodSymbol && methodSymbol.DeclaredAccessibility == Accessibility.Public &&

Microsoft.NetCore.Analyzers\Runtime\BufferBlockCopyLengthAnalyzer.cs (1)

133SyntaxReference? declaringSyntaxReference = localArgumentDeclaration.DeclaringSyntaxReferences.FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\NormalizeStringsToUppercase.cs (1)

82((invocation.Arguments.FirstOrDefault()?.Value as IMemberReferenceOperation)?.Member.Equals(invariantCulture) ?? false)))

Microsoft.NetCore.Analyzers\Runtime\PreferConstCharOverConstUnitString.Fixer.cs (1)

48SyntaxReference? declaringSyntaxReference = localArgumentDeclaration.DeclaringSyntaxReferences.FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\ProvideStreamMemoryBasedAsyncOverrides.cs (8)

73IMethodSymbol? readAsyncArrayOverride = GetOverridingMethodSymbols(type, symbols.ReadAsyncArrayMethod).FirstOrDefault(); 74IMethodSymbol? readAsyncMemoryOverride = GetOverridingMethodSymbols(type, symbols.ReadAsyncMemoryMethod).FirstOrDefault(); 75IMethodSymbol? writeAsyncArrayOverride = GetOverridingMethodSymbols(type, symbols.WriteAsyncArrayMethod).FirstOrDefault(); 76IMethodSymbol? writeAsyncMemoryOverride = GetOverridingMethodSymbols(type, symbols.WriteAsyncMemoryMethod).FirstOrDefault(); 135var readAsyncArrayMethod = GetOverloads(streamType, ReadAsyncName, byteArrayType, int32Type, int32Type, cancellationTokenType).FirstOrDefault(); 136var readAsyncMemoryMethod = GetOverloads(streamType, ReadAsyncName, memoryOfByteType, cancellationTokenType).FirstOrDefault(); 137var writeAsyncArrayMethod = GetOverloads(streamType, WriteAsyncName, byteArrayType, int32Type, int32Type, cancellationTokenType).FirstOrDefault(); 138var writeAsyncMemoryMethod = GetOverloads(streamType, WriteAsyncName, readOnlyMemoryOfByteType, cancellationTokenType).FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\UseCancellationTokenThrowIfCancellationRequested.Fixer.cs (1)

128var firstWhenTrueStatement = conditional.WhenTrue is IBlockOperation block ? block.Operations.FirstOrDefault() : conditional.WhenTrue;

Microsoft.NetCore.Analyzers\Runtime\UseEnvironmentMembers.cs (9)

76var environmentProcessIdSymbol = environmentType.GetMembers("ProcessId").FirstOrDefault(); 77var environmentProcessPathSymbol = environmentType.GetMembers("ProcessPath").FirstOrDefault(); 78var environmentCurrentManagedThreadIdSymbol = environmentType.GetMembers("CurrentManagedThreadId").FirstOrDefault(); 79var processGetCurrentProcessSymbol = processType.GetMembers("GetCurrentProcess").FirstOrDefault(); 80var processIdSymbol = processType.GetMembers("Id").FirstOrDefault(); 81var processMainModuleSymbol = processType.GetMembers("MainModule").FirstOrDefault(); 82var processModuleFileNameSymbol = processModuleType.GetMembers("FileName").FirstOrDefault(); 83var threadCurrentThreadSymbol = threadType.GetMembers("CurrentThread").FirstOrDefault(); 84var threadManagedThreadId = threadType.GetMembers("ManagedThreadId").FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\UseExceptionThrowHelpers.cs (16)

Microsoft.NetCore.Analyzers\Runtime\UseRegexMembers.cs (2)

65var groupSuccessSymbol = groupType.GetMembers("Success").FirstOrDefault(); 66var matchCollectionCountSymbol = matchCollectionType.GetMembers("Count").FirstOrDefault();

Microsoft.NetCore.Analyzers\Runtime\UseStringEqualsOverStringCompare.cs (1)

208if (invocation!.Arguments.FirstOrDefault()?.Value is ILiteralOperation { ConstantValue.Value: 0 })

Microsoft.NetCore.Analyzers\Security\UseDefaultDllImportSearchPathsAttribute.cs (1)

129validatedDefaultDllImportSearchPathsAttribute.ConstructorArguments.FirstOrDefault().Value is int dllImportSearchPath)

Microsoft.NetCore.Analyzers\Tasks\DoNotConfigureAwaitWithSuppressThrowing.cs (1)

50configureAwaitOptionsType.GetMembers("SuppressThrowing").FirstOrDefault() is not IFieldSymbol suppressThrowing ||

Microsoft.NetCore.Analyzers\Tasks\DoNotCreateTaskCompletionSourceWithWrongArguments.Fixer.cs (1)

75taskCreationOptionsType.GetMembers(field.Field.Name).FirstOrDefault() is IFieldSymbol taskCreationOptionsField)

Microsoft.NetCore.Analyzers\Usage\ProvideHttpClientHandlerMaxResponseHeaderLengthValueCorrectly.cs (2)

48.FirstOrDefault(); 53.FirstOrDefault();

src\sdk\src\Microsoft.CodeAnalysis.NetAnalyzers\src\Utilities\Compiler\CodeMetrics\MetricsHelper.cs (1)

214var parameterSyntaxRef = parameter.DeclaringSyntaxReferences.FirstOrDefault();

src\sdk\src\Microsoft.CodeAnalysis.NetAnalyzers\src\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

156return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\sdk\src\Microsoft.CodeAnalysis.NetAnalyzers\src\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

39var firstArg = invocation.Arguments.FirstOrDefault();

Microsoft.CodeAnalysis.Razor.Compiler (4)

CSharp\CompilationTagHelperFeature.cs (1)

34_referenceFeature = Engine.GetFeatures<IMetadataReferenceFeature>().FirstOrDefault();

CSharp\DefaultUtf8WriteLiteralFeature.cs (1)

181var parseOptions = compilation.SyntaxTrees.FirstOrDefault()?.Options as CSharpParseOptions

Language\TagHelpers\Producers\ComponentTagHelperProducer.cs (1)

145attribute.ConstructorArguments.FirstOrDefault() is { Value: string value })

SourceGenerators\StaticCompilationTagHelperFeature.cs (1)

46_discoveryService = Engine.GetFeatures<ITagHelperDiscoveryService>().FirstOrDefault();

Microsoft.CodeAnalysis.ResxSourceGenerator (15)

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\CodeMetrics\MetricsHelper.cs (1)

212var parameterSyntaxRef = parameter.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

93return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

38var firstArg = invocation.Arguments.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

Microsoft.CodeAnalysis.VisualBasic (3)

CommandLine\VisualBasicCommandLineArguments.vb (1)

113Dim defaultCorLibrary = ResolveMetadataReference(Me.DefaultCoreLibraryReference.Value, metadataResolver, diagnostics, messageProvider).FirstOrDefault()

Symbols\AliasSymbol.vb (2)

245Equals(Me.Locations.FirstOrDefault(), other.Locations.FirstOrDefault()) AndAlso

Microsoft.CodeAnalysis.Workspaces (23)

CodeFixes\FixAllOccurrences\FixAllState.cs (1)

69var diagnosticSpan = diagnosticsToFix.First().Value.FirstOrDefault()?.Location.SourceSpan;

FindSymbols\FindReferences\DependentProjectsFinder.cs (1)

299var typeNameConstant = attr.ConstructorArguments.FirstOrDefault();

FindSymbols\FindReferences\Finders\AbstractMemberScopedReferenceFinder.cs (1)

37var location = symbol.Locations.FirstOrDefault();

Rename\RenameUtilities.cs (1)

354semanticInfo.ReferencedSymbols.FirstOrDefault() is INamedTypeSymbol referencedType)

Shared\Extensions\ISymbolExtensions.cs (3)

484return methodSymbol.ExplicitOrImplicitInterfaceImplementations().FirstOrDefault(); 497return typeSymbol.Interfaces.FirstOrDefault(); 506return memberSymbol.ExplicitOrImplicitInterfaceImplementations().FirstOrDefault();

Shared\Extensions\TokenSemanticInfo.cs (1)

51=> GetSymbols(includeType).FirstOrDefault();

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ISolutionExtensions.cs (1)

161var documentId = solution.GetDocumentIdsWithFilePath(location.GetLineSpan().Path).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ITypeInferenceServiceExtensions.cs (1)

110return types.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\SyntaxGeneratorExtensions_CreateEqualsMethod.cs (1)

91.Single(m => containingType.Equals(m.Parameters.FirstOrDefault()?.Type));

Microsoft.Diagnostics.DataContractReader.DataGenerator (1)

Parser.cs (1)

83SyntaxReference? syntaxRef = classSymbol.DeclaringSyntaxReferences.FirstOrDefault();

Microsoft.Extensions.Configuration.Binder.SourceGeneration (1)

ConfigurationBindingGenerator.Parser.cs (1)

752string configKeyName = attributeData?.ConstructorArguments.FirstOrDefault().Value as string ?? propertyName;

Microsoft.Extensions.Validation.ValidationsGenerator (2)

src\aspnetcore\src\Shared\RoslynUtils\SymbolExtensions.cs (2)

223=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault(); 320var underlyingType = namedType.TypeArguments.FirstOrDefault();

Microsoft.Interop.ComInterfaceGenerator (5)

Analyzers\ComInterfaceGeneratorDiagnosticsAnalyzer.cs (1)

255DiagnosticInfo.Create(GeneratorDiagnostics.CannotAnalyzeInterfacePattern, sym.Locations.FirstOrDefault() ?? Location.None, sym.Name));

ComMethodInfo.cs (4)

187methods.Add(DiagnosticOr<(ComMethodInfo, IMethodSymbol)>.From(DiagnosticInfo.Create(GeneratorDiagnostics.MethodNotDeclaredInAttributedInterface, method.Locations.FirstOrDefault(), method.ToDisplayString()))); 204methods.Add(DiagnosticOr<(ComMethodInfo, IMethodSymbol)>.From(DiagnosticInfo.Create(GeneratorDiagnostics.CannotAnalyzeMethodPattern, method.Locations.FirstOrDefault(), method.ToDisplayString()))); 276DiagnosticInfo.Create(GeneratorDiagnostics.MethodNotDeclaredInAttributedInterface, property.Locations.FirstOrDefault(), property.ToDisplayString()))); 296DiagnosticInfo.Create(GeneratorDiagnostics.CannotAnalyzeMethodPattern, property.Locations.FirstOrDefault(), property.ToDisplayString())));

Microsoft.Interop.SourceGeneration (1)

TypePositionInfo.cs (1)

94IsExplicitThis = ((ParameterSyntax?)paramSymbol.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax())?.Modifiers.Any(SyntaxKind.ThisKeyword) ?? false

Roslyn.Diagnostics.Analyzers (30)

AbstractDoNotCopyValue.cs (1)

1566var nullableUnderlyingType = ((INamedTypeSymbol)type).TypeArguments.FirstOrDefault();

ExportedPartsShouldHaveImportingConstructor.cs (1)

141?? nonImportingConstructors.FirstOrDefault();

ExportedPartsShouldHaveImportingConstructorCodeFixProvider.cs (2)

89importingConstructorAttributeSymbol = exportAttributeSymbol.ContainingNamespace?.GetTypeMembers(nameof(ImportingConstructorAttribute)).FirstOrDefault(); 197importingConstructorAttributeSymbol = exportAttributeSymbol.ContainingNamespace.GetTypeMembers(nameof(ImportingConstructorAttribute)).FirstOrDefault();

ImmutableArrayBoxingAnalyzer.cs (1)

78var instance = invocation.Instance ?? invocation.Arguments.FirstOrDefault()?.Value;

IRemoteJsonServiceParameterAnalyzer.cs (1)

82parameter.Locations.FirstOrDefault(),

PooledArrayBuilderAsRefAnalyzer.cs (1)

64var instance = invocation.Instance ?? invocation.Arguments.FirstOrDefault()?.Value;

SpecializedEnumerableCreationAnalyzer.cs (1)

83if (linqEnumerableSymbol.GetMembers(EmptyMethodName).FirstOrDefault() is not IMethodSymbol genericEmptyEnumerableSymbol ||

src\roslyn\src\Dependencies\Collections\OneOrMany.cs (1)

141=> HasOneItem ? _one : _many.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\CodeMetrics\MetricsHelper.cs (1)

212var parameterSyntaxRef = parameter.DeclaringSyntaxReferences.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IMethodSymbolExtensions.cs (1)

93return constructedInterface?.GetMembers(interfaceMethodName).FirstOrDefault() is IMethodSymbol interfaceMethod &&

src\roslyn\src\RoslynAnalyzers\Utilities\Compiler\Extensions\IOperationExtensions.cs (1)

38var firstArg = invocation.Arguments.FirstOrDefault();

src\roslyn\src\RoslynAnalyzers\Utilities\Refactoring\CodeRefactoringContextExtensions.cs (1)

35return potentialNodes.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\CollectionExpressionUtilities.cs (1)

76elementType = foundType?.TypeArguments.FirstOrDefault() ?? compilation.ObjectType;

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Extensions\SymbolInfoExtensions.cs (1)

23=> info.Symbol ?? info.CandidateSymbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\Simplification\SymbolAnnotation.cs (1)

21=> GetSymbols(annotation, compilation).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AliasSymbolKey.cs (1)

22visitor.WriteString(symbol.DeclaringSyntaxReferences.FirstOrDefault()?.SyntaxTree.FilePath ?? "");

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.AnonymousTypeSymbolKey.cs (1)

25var propertyLocations = properties.SelectAsArray(p => p.Locations.FirstOrDefault());

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.SymbolKeyReader.cs (1)

705var location = module.Locations.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Core\SymbolKey\SymbolKey.TupleTypeSymbolKey.cs (1)

30locations.Add(element.Locations.FirstOrDefault() ?? Location.None);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\Extensions\Symbols\SymbolEquivalenceComparer.GetHashCodeVisitor.cs (4)

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ISolutionExtensions.cs (1)

161var documentId = solution.GetDocumentIdsWithFilePath(location.GetLineSpan().Path).FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\ITypeInferenceServiceExtensions.cs (1)

110return types.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\Core\Extensions\SyntaxGeneratorExtensions_CreateEqualsMethod.cs (1)

91.Single(m => containingType.Equals(m.Parameters.FirstOrDefault()?.Type));

SymbolDeclaredEventMustBeGeneratedForSourceSymbols.cs (1)

86ISymbol symbolDeclaredEvent = compilationType.GetMembers(SymbolDeclaredEventName).FirstOrDefault();

TemporaryArrayAsRefAnalyzer.cs (1)

62var instance = invocation.Instance ?? invocation.Arguments.FirstOrDefault()?.Value;

TestExportsShouldNotBeDiscoverableCodeFixProvider.cs (1)

89partNotDiscoverableAttributeSymbol = exportAttributeSymbol.ContainingNamespace.GetTypeMembers(nameof(PartNotDiscoverableAttribute)).FirstOrDefault();

Roslyn.Diagnostics.CSharp.Analyzers (6)

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Compiler\CSharp\Extensions\ITypeSymbolExtensions.cs (1)

53c => c.DeclaringSyntaxReferences.FirstOrDefault()?.GetSyntax() is TypeDeclarationSyntax);

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\ContextQuery\SyntaxTreeExtensions.cs (2)

1021if (conditionOrType.GetBestOrAllSymbols().FirstOrDefault() is { Kind: SymbolKind.NamedType }) 3052var symbol = leftHandBinding.GetBestOrAllSymbols().FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\Extensions\TypeSyntaxExtensions.cs (1)

45var firstSymbol = symbols.FirstOrDefault();

src\roslyn\src\Workspaces\SharedUtilitiesAndExtensions\Workspace\CSharp\LanguageServices\CSharpTypeInferenceService.TypeInferrer.cs (2)

1696var type = types.FirstOrDefault().InferredType.GetDelegateType(this.Compilation); 1906return InferTypes(identifierName).FirstOrDefault().InferredType;

System.Private.CoreLib.Generators (1)

NativeRuntimeEventSourceGenerator.cs (1)

38string inclusionText = inclusionFiles.FirstOrDefault()?.GetText(spc.CancellationToken)?.ToString();

System.Text.Json.SourceGeneration (2)

JsonSourceGenerator.Parser.cs (2)

3049var nestedTypeDef = constructedContainingType.GetTypeMembers(originalDef.Name, originalDef.Arity).FirstOrDefault(); 3070var nestedType = constructedContainingType.GetTypeMembers(originalDef.Name, 0).FirstOrDefault();