RefKind

Binder\Binder.ValueChecks.cs (18)

116Debug.Assert(parameter.RefKind.IsWritableReference() && parameter.Type.IsRefLikeOrAllowsRefLikeType()); 1119if (parameterSymbol.RefKind is RefKind.In or RefKind.RefReadOnlyParameter && RequiresAssignableVariable(valueKind)) 1124else if (parameterSymbol.RefKind == RefKind.None && RequiresRefAssignableVariable(valueKind)) 1130Debug.Assert(parameterSymbol.RefKind != RefKind.None || !RequiresRefAssignableVariable(valueKind)); 1134if (parameterSymbol.RefKind == RefKind.None && 1233{ RefKind: RefKind.Out, UseUpdatedEscapeRules: true } => SafeContext.ReturnOnly, 1245{ RefKind: RefKind.None } => SafeContext.CurrentMethod, 1247{ HasUnscopedRefAttribute: true, RefKind: RefKind.Out } => SafeContext.ReturnOnly, 1280Debug.Assert(parameterSymbol.RefKind == RefKind.None || isRefScoped || refSafeToEscape.IsReturnOnly); 2344var refKind = parameter?.RefKind ?? RefKind.None; 2350parameter?.RefKind is RefKind.In or RefKind.RefReadOnlyParameter) 2352refKind = parameter.RefKind; 2362parameter.RefKind.IsWritableReference(); 2422refKind = thisParameter.RefKind; 2992Debug.Assert(underlyingParameter.RefKind != RefKind.Out); // Shouldn't get here for a constructor 3006if (_underlyingParameter.RefKind is not RefKind.None and var underlyingRefKind) 4539if (constructMethod is not { Parameters: [{ RefKind: RefKind.None } parameter] }) 5738((BoundParameter)expression).ParameterSymbol.RefKind is not (RefKind.In or RefKind.RefReadOnlyParameter);

Binder\Binder_Attributes.cs (1)

250if (attributeConstructor.Parameters.Any(static p => p.RefKind is RefKind.In or RefKind.RefReadOnlyParameter))

Binder\Binder_Conversions.cs (3)

1876if (method.Parameters is not [{ RefKind: RefKind.None, Type: var parameterType }] 2868sourceRefKind: delegateParameter.RefKind, 2869destinationRefKind: methodParameter.RefKind,

Binder\Binder_Deconstruct.cs (1)

687if (parameters[i].RefKind != RefKind.Out)

Binder\Binder_Expressions.cs (14)

2092if (IsBadLocalOrParameterCapture(parameter, parameter.Type, parameter.RefKind)) 2096if (parameter.RefKind != RefKind.None) 2116(parameter.RefKind != RefKind.None || parameter.Type.IsRestrictedType()) && 2119if (parameter.RefKind != RefKind.None) 2133else if (primaryCtor is { ThisParameter.RefKind: not RefKind.None } && 2494if (thisSymbol is not null && thisSymbol.ContainingSymbol != ContainingMemberOrLambda && thisSymbol.RefKind != RefKind.None) 3412getCorrespondingParameter(in result, parameters, arg).RefKind == RefKind.RefReadOnlyParameter) 3425if (getCorrespondingParameter(in result, parameters, arg).RefKind == RefKind.In) 3436getCorrespondingParameter(in result, parameters, arg).RefKind == RefKind.RefReadOnlyParameter) 3825refKind = parameter.RefKind; 3844refKind = parameter.RefKind; 10036original.Parameters[0] is { Type.SpecialType: SpecialType.System_Int32, RefKind: RefKind.None }) 10134original.Parameters[0] is { Type.SpecialType: SpecialType.System_Int32, RefKind: RefKind.None } && 10135original.Parameters[1] is { Type.SpecialType: SpecialType.System_Int32, RefKind: RefKind.None };

Binder\Binder_Invocation.cs (2)

1226if (receiverParameter.RefKind == RefKind.Ref) 1242else if (receiverParameter.RefKind == RefKind.In)

Binder\Binder_Operators.cs (1)

2644if (parameterSymbol.RefKind != RefKind.None)

Binder\Binder_Statements.cs (2)

2143var delegateRefKind = delegateParameters[i].RefKind; 2186var delegateRefKind = delegateParameters[i].RefKind;

Binder\ExecutableCodeBinder.cs (1)

112if (parameter.RefKind != RefKind.None)

Binder\Semantics\Conversions\Conversions.cs (2)

419isParamsArray: parameter.IsParamsArray, isParamsCollection: parameter.IsParamsCollection, parameter.RefKind); 423analyzedArguments.RefKinds.Add(parameter.RefKind);

Binder\Semantics\Conversions\ConversionsBase.cs (6)

1517delegateParameterRefKind: delegateParameters[p].RefKind, 1529if (delegateParameters[p].RefKind != RefKind.None) 1571if (delegateParameters[p].RefKind == RefKind.Out) 3401if (sourceParam.RefKind != destinationParam.RefKind) 3406if (!hasConversion(sourceParam.RefKind, destinationSig.Parameters[i].TypeWithAnnotations, sourceSig.Parameters[i].TypeWithAnnotations, ref useSiteInfo))

Binder\Semantics\OverloadResolution\MethodTypeInference.cs (2)

2421if ((sourceParam.Type.IsReferenceType || sourceParam.Type.IsFunctionPointer()) && sourceParam.RefKind == RefKind.None) 2771if ((sourceParam.Type.IsReferenceType || sourceParam.Type.IsFunctionPointer()) && sourceParam.RefKind == RefKind.None)

Binder\Semantics\OverloadResolution\OverloadResolution.cs (8)

2553parameter1RefKind = parameter.RefKind; 2621if (p1.RefKind == RefKind.None && isAcceptableRefMismatch(p2.RefKind, isInterpolatedStringHandlerConversion)) 2632else if (p2.RefKind == RefKind.None && isAcceptableRefMismatch(p1.RefKind, isInterpolatedStringHandlerConversion)) 3697if (param1.RefKind != param2.RefKind) 3861var paramRefKind = parameter.RefKind;

Binder\Semantics\OverloadResolution\OverloadResolutionResult.cs (2)

1122if (parameters[i].RefKind != RefKind.None) 1190RefKind refParameter = parameter.RefKind;

BoundTree\BoundExpressionExtensions.cs (1)

28return ((BoundParameter)node).ParameterSymbol.RefKind;

BoundTree\UnboundLambda.cs (1)

1111refKindsBuilder.Add(p.RefKind);

CodeGen\EmitAddress.cs (1)

482if (parameterSymbol.RefKind == RefKind.None)

CodeGen\EmitExpression.cs (12)

951Debug.Assert(parameters.All(p => p.RefKind == RefKind.None) || !argRefKindsOpt.IsDefault, "there are nontrivial parameters, so we must have argRefKinds"); 977Debug.Assert(argRefKind == parameters[i].RefKind || 978parameters[i].RefKind switch 988Debug.Assert(parameters[i].RefKind != RefKind.RefReadOnlyParameter, 992argRefKind = parameters[i].RefKind switch 1288return ((BoundParameter)receiver).ParameterSymbol.RefKind != RefKind.None; 1424if (parameter.ParameterSymbol.RefKind != RefKind.None) 2217return ((BoundParameter)receiver).ParameterSymbol.RefKind != RefKind.None; 2633if (System.Linq.ImmutableArrayExtensions.All(ctor.Parameters, p => p.RefKind == RefKind.None) && 2757return ((BoundParameter)left).ParameterSymbol.RefKind == RefKind.None; 2800if (left.ParameterSymbol.RefKind != RefKind.None && 3297if (parameter.ParameterSymbol.RefKind != RefKind.None && !refAssign)

CodeGen\EmitStatement.cs (1)

1292if (parameter.ParameterSymbol.RefKind == RefKind.None)

CodeGen\Optimizer.cs (1)

1041if (((BoundParameter)lhs).ParameterSymbol.RefKind != RefKind.None)

DocumentationComments\DocumentationCommentIDVisitor.PartVisitor.cs (1)

248if (symbol.RefKind != RefKind.None)

Emitter\EditAndContinue\CSharpSymbolMatcher.cs (6)

657return parameter.RefKind is RefKind.None == other.RefKind is RefKind.None && 687ValidateFunctionPointerParamOrReturn(param.TypeWithAnnotations, param.RefKind, param.RefCustomModifiers, allowOut: true); 688ValidateFunctionPointerParamOrReturn(otherParam.TypeWithAnnotations, otherParam.RefKind, otherParam.RefCustomModifiers, allowOut: true); 690return param.RefKind == otherParam.RefKind && AreTypesEqual(param.TypeWithAnnotations, otherParam.TypeWithAnnotations);

Emitter\Model\ParameterSymbolAdapter.cs (1)

41return AdaptedParameterSymbol.RefKind != RefKind.None;

Emitter\Model\ParameterTypeInformation.cs (1)

39return _underlyingParameter.RefKind != RefKind.None;

FlowAnalysis\AbstractFlowPass.cs (1)

1442var thisRefKind = thisParameter.RefKind;

FlowAnalysis\DataFlowsOutWalker.cs (1)

233((param.RefKind != RefKind.None && !param.IsImplicitlyDeclared && !RegionContains(param.GetFirstLocation().SourceSpan)) ||

FlowAnalysis\DefiniteAssignment.cs (10)

349NoteWrite(parameter, value: null, read: true, isRef: parameter.RefKind != RefKind.None); 1234((ParameterSymbol)symbol).RefKind == RefKind.Out) 1622if (isRef && param.RefKind == RefKind.Out) 1814if (parameter.RefKind != RefKind.Out) 1826if (thisParameter.RefKind != RefKind.Out) 1849if (current is not MethodSymbol && parameter.RefKind == RefKind.Out) 1879if (parameter.RefKind == RefKind.Out && !(this.CurrentSymbol is MethodSymbol currentMethod && currentMethod.IsAsync)) // out parameters not allowed in async 1887NoteWrite(parameter, value: null, read: true, isRef: parameter.RefKind != RefKind.None); 1945if (!parameter.IsThis && parameter.RefKind != RefKind.Out && parameter.ContainingSymbol is SynthesizedPrimaryConstructor primaryCtor) 1957if (parameter.RefKind != RefKind.None)

FlowAnalysis\NullableWalker.cs (6)

1255var refKind = parameter.RefKind; 2822if (parameter.RefKind != RefKind.Out) 10088case BoundParameter { ParameterSymbol: { RefKind: RefKind.None } parameter } when 10221VisitArgumentConversionAndInboundAssignmentsAndPreConditions(conversionOpt: null, variable.Expression, underlyingConversion, parameter.RefKind, 10235variable.Expression, parameter.RefKind, parameter, parameter.TypeWithAnnotations, GetRValueAnnotations(parameter), 11840parameter.RefKind,

FlowAnalysis\ReadWriteWalker.cs (2)

87if (p.RefKind != RefKind.None) _readOutside.Add(p); 95if ((object)thisParameter != null && thisParameter.RefKind != RefKind.None)

Lowering\DiagnosticsPass_ExpressionTrees.cs (1)

575if (p.RefKind != RefKind.None && p.TryGetFirstLocation() is Location location)

Lowering\DiagnosticsPass_Warnings.cs (1)

244if (method.Parameters[i].RefKind != RefKind.None && (argumentRefKindsOpt.IsDefault || argumentRefKindsOpt[i] == RefKind.None)) return true;

Lowering\Instrumentation\LocalStateTracingInstrumenter.cs (2)

307if (parameter.RefKind == RefKind.Out || parameter.IsDiscard) 448Debug.Assert(parameter.RefKind == RefKind.None);

Lowering\Instrumentation\ModuleCancellationInstrumenter.cs (1)

186member is MethodSymbol { Parameters: [.., { RefKind: RefKind.None, Type: { } lastParamType }] parametersWithCancellationToken } overload &&

Lowering\LocalRewriter\LocalRewriter.cs (1)

1128symbol.Parameters.Any(static p => p.RefKind == RefKind.In))

Lowering\LocalRewriter\LocalRewriter.PatternLocalRewriter.cs (1)

188Debug.Assert(parameter.RefKind == RefKind.Out);

Lowering\LocalRewriter\LocalRewriter_Call.cs (7)

239|| methodThisParameter.RefKind != interceptorThisParameterForCompare.RefKind: 285var thisRefKind = methodThisParameter.RefKind; 881RefKind paramRefKind = parameters[paramIndex].RefKind; 1161var paramRefKind = parameters[i].RefKind; 1323RefKind paramRefKind = parameters[p].RefKind; 1616RefKind paramRefKind = parameters[argIndex].RefKind;

Lowering\LocalRewriter\LocalRewriter_CompoundAssignmentOperator.cs (1)

854((BoundParameter)expression).ParameterSymbol.RefKind != RefKind.None ||

Lowering\LocalRewriter\LocalRewriter_DeconstructionAssignmentOperator.cs (1)

171case BoundParameter { ParameterSymbol: { RefKind: RefKind.None } parameterSymbol }:

Lowering\LocalRewriter\LocalRewriter_IndexerAccess.cs (1)

273possiblyRefCapturedReceiver = _factory.StoreToTemp(possiblyRefCapturedReceiver, out var refCapture, createSpan.Parameters[0].RefKind == RefKind.In ? RefKindExtensions.StrictIn : RefKind.Ref);

Lowering\LocalRewriter\LocalRewriter_NullCoalescingOperator.cs (1)

146if (unwrappedRight is { ConstantValueOpt: not null } or BoundLocal { LocalSymbol.IsRef: false } or BoundParameter { ParameterSymbol.RefKind: RefKind.None } &&

Lowering\LocalRewriter\LocalRewriter_ObjectOrCollectionInitializerExpression.cs (2)

147.All(p => p.RefKind is RefKind.None or RefKind.In or RefKind.RefReadOnlyParameter)); 164if (addMethod.Parameters[0].RefKind == RefKind.Ref)

Lowering\LocalRewriter\LocalRewriter_StringConcat.cs (3)

506readOnlySpanCtorRefParamGeneric.Parameters[0].RefKind != RefKind.Out) 544Debug.Assert(readOnlySpanCtorRefParamChar.Parameters[0].RefKind != RefKind.Out); 551argumentRefKindsOpt: [readOnlySpanCtorRefParamChar.Parameters[0].RefKind == RefKind.Ref ? RefKind.Ref : RefKindExtensions.StrictIn],

Lowering\LocalRewriter\LocalRewriter_UnaryOperator.cs (1)

493return ((BoundParameter)expression).ParameterSymbol.RefKind != RefKind.None;

Lowering\StateMachineRewriter\IteratorAndAsyncCaptureWalker.cs (1)

251Debug.Assert(parameter.IsThis || parameter.RefKind == RefKind.None);

Lowering\SynthesizedMethodBaseSymbol.cs (1)

141p.RefKind,

Symbols\Compilation_WellKnownMembers.cs (2)

1007handle(param.RefKind, param.RefCustomModifiers, param.TypeWithAnnotations); 1172return parameter.RefKind != RefKind.None;

Symbols\FunctionPointers\FunctionPointerMethodSymbol.cs (1)

469originalParam.RefKind,

Symbols\MemberSignatureComparer.cs (2)

796var refKind1 = param1.RefKind; 797var refKind2 = param2.RefKind;

Symbols\Metadata\PE\DynamicTypeDecoder.cs (1)

369var (transformedParamType, paramTransformed) = handle(ref this, param.RefKind, param.RefCustomModifiers, param.TypeWithAnnotations);

Symbols\Metadata\PE\MemberRefMetadataDecoder.cs (1)

254if ((candidateParam.RefKind != RefKind.None) != targetParam.IsByRef)

Symbols\Metadata\PE\PEMethodSymbol.cs (1)

1125switch (parameter.RefKind)

Symbols\NamedTypeSymbol.cs (2)

363if ((thisParam.RefKind == RefKind.Ref && !thisParam.Type.IsValueType) || 364(thisParam.RefKind is RefKind.In or RefKind.RefReadOnlyParameter && thisParam.Type.TypeKind != TypeKind.Struct))

Symbols\ParameterSignature.cs (1)

46var refKind = parameter.RefKind;

Symbols\ParameterSymbol.cs (2)

162((refKind = RefKind) == RefKind.None || 452RefKind IParameterSymbolInternal.RefKind => RefKind;

Symbols\PropertySymbolExtensions.cs (2)

73if (param.RefKind == RefKind.Ref || param.RefKind == RefKind.Out)

Symbols\PublicModel\ParameterSymbol.cs (1)

59RefKind IParameterSymbol.RefKind => _underlying.RefKind;

Symbols\ReducedExtensionMethodSymbol.cs (1)

539internal override bool IsEffectivelyReadOnly => _reducedFrom.Parameters[0].RefKind is RefKind.In or RefKind.RefReadOnlyParameter;

Symbols\Source\CustomModifierUtils.cs (1)

146destinationParameter.RefKind != RefKind.None ? sourceParameter.RefCustomModifiers : ImmutableArray<CustomModifier>.Empty,

Symbols\Source\ExplicitInterfaceHelpers.cs (2)

402if (implementedMemberParameters[i].RefKind != collisionCandidateParameters[i].RefKind)

Symbols\Source\ParameterHelpers.cs (4)

196parameter.RefKind, parameter.ContainingSymbol, thisKeyword, paramsKeyword, firstDefault, diagnostics); 243if (parameter.RefKind == RefKind.In) 254else if (parameter.RefKind == RefKind.RefReadOnlyParameter) 336return IsRefScopedByDefault(parameter.UseUpdatedEscapeRules, parameter.RefKind);

Symbols\Source\SourceMemberContainerSymbol.cs (4)

2154var refKind1 = method1.Parameters[i].RefKind; 2155var refKind2 = method2.Parameters[i].RefKind; 3946if (methodParam.RefKind != RefKind.None) 3969methodParams[0].RefKind == RefKind.None &&

Symbols\Source\SourceMemberContainerSymbol_ImplementationChecks.cs (7)

1301overrideParameter.RefKind, 1310overrideParameter.RefKind, 1395else if (parameters.Any(p => (p.RefKind is RefKind.Ref or RefKind.Out) && p.Type.IsRefLikeOrAllowsRefLikeType())) 1406int nRefParameters = parameters.Count(p => p.RefKind is RefKind.Ref or RefKind.In or RefKind.RefReadOnlyParameter or RefKind.Out); 1411else if (parameters.Any(p => p.RefKind == RefKind.None && p.Type.IsRefLikeOrAllowsRefLikeType())) 1509if (baseParameter.RefKind != overrideParameter.RefKind)

Symbols\Source\SourceMethodSymbol.cs (1)

65if (parameter.RefKind != RefKind.None)

Symbols\Source\SourceMethodSymbolWithAttributes.cs (2)

764if (param.RefKind == RefKind.Out) 1396checkAndReportManagedTypes(param.Type, param.RefKind, param.GetNonNullSyntaxNode(), isParam: true, diagnostics);

Symbols\Source\SourceOrdinaryMethodSymbol.cs (2)

209var parameter0RefKind = this.Parameters[0].RefKind; 819else if (IsPartial && !HasExplicitAccessModifier && Parameters.Any(static p => p.RefKind == RefKind.Out))

Symbols\Source\SourceParameterSymbolBase.cs (2)

97AddSynthesizedAttribute(ref attributes, compilation.SynthesizeDynamicAttribute(type.Type, type.CustomModifiers.Length + this.RefCustomModifiers.Length, this.RefKind)); 116switch (this.RefKind)

Symbols\Source\SourceUserDefinedOperatorSymbolBase.cs (2)

334if (p.RefKind != RefKind.None && p.RefKind != RefKind.In)

Symbols\SymbolExtensions.cs (1)

524refKind = parameter.RefKind;

Symbols\Synthesized\Records\SynthesizedRecordClone.cs (1)

124if (ctor.ParameterCount == 1 && ctor.Parameters[0].RefKind == RefKind.None &&

Symbols\Synthesized\Records\SynthesizedRecordCopyCtor.cs (1)

148method.Parameters[0].RefKind == RefKind.None;

Symbols\Synthesized\Records\SynthesizedRecordEqualityOperator.cs (1)

45if (member is MethodSymbol candidate && candidate.ParameterCount == 1 && candidate.Parameters[0].RefKind == RefKind.None &&

Symbols\Synthesized\SynthesizedParameterSymbol.cs (1)

313oldParam.RefKind,

Symbols\VarianceSafety.cs (1)

242requireOutputSafety: param.RefKind != RefKind.None,

Symbols\Wrapped\WrappedParameterSymbol.cs (1)

46get { return _underlyingParameter.RefKind; }