2371Error(diagnostics, ErrorCode.WRN_OptionalParamValueMismatch, lambdaParameter.GetFirstLocation(), p + 1, lambdaParamDefault, delegateParamDefault ?? ((object)MessageID.IDS_Missing.Localize())); 2378Error(diagnostics, ErrorCode.WRN_ParamsArrayInLambdaOnly, lambdaParameter.GetFirstLocation(), p + 1);

4853diagnostics.Add(ErrorCode.ERR_ObjectCallingBaseConstructor, constructor.GetFirstLocation(), containingType); 4864diagnostics.Add(ErrorCode.ERR_StructWithBaseConstructorCall, constructor.GetFirstLocation(), containingType); 4899errorLocation = constructor.GetFirstLocation();

25=> symbol.TryGetFirstLocation() ?? symbol.ContainingSymbol.GetFirstLocation();

773CheckFeatureAvailability(expression, MessageID.IDS_FeatureExpressionVariablesInQueriesAndInitializers, diagnostics, locals[0].GetFirstLocation());

225method.GetFirstLocation()); 584diagnostics.Add(ErrorCode.ERR_LocalFunctionMissingBody, localSymbol.GetFirstLocation(), localSymbol); 590diagnostics.Add(ErrorCode.ERR_ExternHasBody, localSymbol.GetFirstLocation(), localSymbol); 630blockDiagnostics.Add(ErrorCode.ERR_ReturnExpected, localSymbol.GetFirstLocation(), localSymbol);

1891Location la = snd.GetFirstLocation(); 1892Location lb = fst.GetFirstLocation();

603if (InSpan(sym.GetFirstLocation(), this.syntaxTree, memberSpan)) 612if (InSpan(implementation.GetFirstLocation(), this.syntaxTree, memberSpan))

114diagnostics.Add(ErrorCode.ERR_BadIteratorArgType, parameter.GetFirstLocation()); 118diagnostics.Add(ErrorCode.ERR_UnsafeIteratorArgType, parameter.GetFirstLocation()); 122Location errorLocation = (iterator as SynthesizedSimpleProgramEntryPointSymbol)?.ReturnTypeSyntax.GetLocation() ?? iterator.GetFirstLocation();

456if (candidate.GetFirstLocation() == node.Identifier.GetLocation())

513if (declaredInThisScope && newLocation.SourceSpan.Start >= local.GetFirstLocation().SourceSpan.Start)

118var oldLocation = parameter.GetFirstLocation();

262string entryPointFileName = PathUtilities.GetFileName(entryPoint.GetFirstLocation().SourceTree!.FilePath);

1953diagnostics.Add(ErrorCode.ERR_MainClassNotClass, mainTypeOrNamespace.GetFirstLocation(), mainTypeOrNamespace); 2002noMainFoundDiagnostics.Add(ErrorCode.WRN_InvalidMainSig, candidate.GetFirstLocation(), candidate); 2010noMainFoundDiagnostics.Add(ErrorCode.WRN_MainCantBeGeneric, candidate.GetFirstLocation(), candidate); 2112diagnostics.Add(ErrorCode.ERR_NoMainInClass, mainType.GetFirstLocation(), mainType); 3635var location = symbol.GetFirstLocation();

1806var loc = partial.GetFirstLocation(); 1930if (alias.Alias.GetFirstLocation().SourceSpan == declarationSyntax.Alias.Name.Span) 1963if (alias.Alias.GetFirstLocation().SourceSpan == declarationSyntax.Identifier.Span)

121Location warningLocation = i == 0 ? attributeLocation : module.GetFirstLocation(); 260this.AddDiagnostic(ErrorCode.WRN_CLS_BadAttributeType, symbol.GetFirstLocation(), symbol); 335this.AddDiagnostic(ErrorCode.WRN_CLS_NoVarArgs, symbol.GetFirstLocation()); 414this.AddDiagnostic(ErrorCode.WRN_CLS_VolatileField, symbol.GetFirstLocation(), symbol); 460this.AddDiagnostic(ErrorCode.WRN_CLS_MeaninglessOnPrivateType, symbol.GetFirstLocation(), symbol); 504this.AddDiagnostic(ErrorCode.WRN_CLS_BadInterfaceMember, symbol.GetFirstLocation(), symbol); 508this.AddDiagnostic(ErrorCode.WRN_CLS_NoAbstractMembers, symbol.GetFirstLocation(), symbol); 525this.AddDiagnostic(ErrorCode.WRN_CLS_BadInterface, symbol.GetFirstLocation(), symbol, interfaceType); 536this.AddDiagnostic(ErrorCode.WRN_CLS_BadBase, symbol.GetFirstLocation(), symbol, baseType); 549this.AddDiagnostic(ErrorCode.WRN_CLS_IllegalTrueInFalse, symbol.GetFirstLocation(), symbol, containingType); 566this.AddDiagnostic(ErrorCode.WRN_CLS_BadTypeVar, typeParameter.GetFirstLocation(), constraintType.Type); 580this.AddDiagnostic(ErrorCode.WRN_CLS_BadArgType, parameter.GetFirstLocation(), parameter.Type); 762this.AddDiagnostic(code, symbol.GetFirstLocation(), symbol); 795this.AddDiagnostic(code, symbol.GetFirstLocation(), symbol); 896this.AddDiagnostic(ErrorCode.WRN_CLS_BadIdentifierCase, symbol.GetFirstLocation(), symbol); 915this.AddDiagnostic(code, symbol.GetFirstLocation(), symbol); 921this.AddDiagnostic(ErrorCode.WRN_CLS_BadIdentifierCase, symbol.GetFirstLocation(), symbol); 956this.AddDiagnostic(ErrorCode.WRN_CLS_BadIdentifier, symbol.GetFirstLocation(), name);

379Location location = parameter.GetFirstLocation(); 394Location location = typeParameter.GetFirstLocation();

1595diagnosticsForThisMethod.Add(ErrorCode.ERR_TooManyLocals, method.GetFirstLocation());

576diagnostics.Add(ErrorCode.ERR_TypeReserved, userDefinedAttribute.GetFirstLocation(), description.FullName);

504location = method.GetFirstLocation();

343var targetStart = node.Label.GetFirstLocation().SourceSpan.Start;

95if (IsInside && !RegionContains(node.RangeVariableSymbol.GetFirstLocation().SourceSpan))

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

103diagnostics.Add(ErrorCode.ERR_ReturnExpected, method.GetFirstLocation(), method);

66method.GetFirstLocation());

581_diagnostics.Add(ErrorCode.ERR_ExpressionTreeCantContainRefStruct, p.GetFirstLocation(), p.Type.Name); 586_diagnostics.Add(ErrorCode.ERR_LambdaWithAttributesToExpressionTree, p.GetFirstLocation());

239target.CheckAllConstraints(DeclaringCompilation, conversions, GetFirstLocation(), diagnostics); 361diagnostics.Add(ErrorCode.ERR_BadExternAlias, GetFirstLocation(), Name);

99Location location = anonymous.GetFirstLocation();

101Location location = typeParameter.GetFirstLocation(); 118diagnostics.Add(ErrorCode.ERR_ClassIsCombinedWithRefStruct, typeParameter.GetFirstLocation());

188var memberLocation = implementingMember.GetFirstLocation(); 358var memberLocation = implementingMember.GetFirstLocation(); 370diagnostics.Add(ErrorCode.ERR_RuntimeDoesNotSupportStaticAbstractMembersInInterfaces, implementingMember.GetFirstLocation()); 411diagnostics.Add(ErrorCode.ERR_ExplicitImplCollisionOnRefOut, explicitInterfaceType.GetFirstLocation(), explicitInterfaceType, implementedMember); 416diagnostics.Add(ErrorCode.WRN_ExplicitImplCollision, implementingMember.GetFirstLocation(), implementingMember); 428diagnostics.Add(ErrorCode.WRN_ExplicitImplCollision, implementingMember.GetFirstLocation(), implementingMember);

63diagnostics.ReportUseSite(this.DeclaringCompilation.GetSpecialType(SpecialType.System_Object), GetFirstLocation());

239_ => GetFirstLocation()

77_declarationDiagnostics.Add(ErrorCode.ERR_BadExtensionAgg, GetFirstLocation());

1402diagnostics.Add(ErrorCode.ERR_OutAttrOnRefParam, this.GetFirstLocation()); 1409diagnostics.Add(ErrorCode.ERR_InAttrOnOutParam, this.GetFirstLocation()); 1416diagnostics.Add(ErrorCode.ERR_OutAttrOnInParam, this.GetFirstLocation()); 1423diagnostics.Add(ErrorCode.ERR_OutAttrOnRefReadonlyParam, this.GetFirstLocation());

287diagnostics.Add(ErrorCode.ERR_PartialMemberInconsistentTupleNames, implementation.GetFirstLocation(), this, implementation); 292diagnostics.Add(ErrorCode.WRN_PartialMemberSignatureDifference, implementation.GetFirstLocation(), 299diagnostics.Add(ErrorCode.ERR_PartialMemberUnsafeDifference, implementation.GetFirstLocation()); 304diagnostics.Add(ErrorCode.ERR_PartialMemberParamsDifference, implementation.GetFirstLocation()); 310diagnostics.Add(ErrorCode.ERR_PartialMemberAccessibilityDifference, implementation.GetFirstLocation()); 322diagnostics.Add(ErrorCode.ERR_ScopedMismatchInParameterOfPartial, implementation.GetFirstLocation(), new FormattedSymbol(implementation.Parameters[i], SymbolDisplayFormat.ShortFormat));

60var location = this.GetFirstLocation(); 98parameter.Type.CheckAllConstraints(compilation, conversions, parameter.GetFirstLocation(), diagnostics);

139diagnostics.Add(ErrorCode.ERR_EventNeedsBothAccessors, this.GetFirstLocation(), this); 144diagnostics.Add(ErrorCode.ERR_ExplicitEventFieldImpl, this.GetFirstLocation()); 151Binder.CheckFeatureAvailability(syntax, MessageID.IDS_DefaultInterfaceImplementation, diagnostics, this.GetFirstLocation()); 155diagnostics.Add(ErrorCode.ERR_RuntimeDoesNotSupportDefaultInterfaceImplementation, this.GetFirstLocation());

104diagnostics.Add(ErrorCode.ERR_BadVisDelegateReturn, delegateType.GetFirstLocation(), delegateType, invoke.ReturnType); 110diagnostics.Add(ErrorCode.ERR_FileTypeDisallowedInSignature, delegateType.GetFirstLocation(), invoke.ReturnType, delegateType); 119diagnostics.Add(ErrorCode.ERR_BadVisDelegateParam, delegateType.GetFirstLocation(), delegateType, parameterSymbol.Type); 123diagnostics.Add(ErrorCode.ERR_FileTypeDisallowedInSignature, delegateType.GetFirstLocation(), parameterSymbol.Type, delegateType); 127diagnostics.Add(delegateType.GetFirstLocation(), useSiteInfo);

220diagnostics.Add(ErrorCode.ERR_EnumeratorOverflow, this.GetFirstLocation(), this);

202return this.GetFirstLocation();

583Location location = this.GetFirstLocation(); 822var location = this.GetFirstLocation(); 856diagnostics.Add(ErrorCode.ERR_ExplicitPropertyAddingAccessor, thisAccessor.GetFirstLocation(), thisAccessor, explicitlyImplementedEvent); 868diagnostics.Add(ErrorCode.ERR_PartialMemberTypeDifference, implementation.GetFirstLocation()); 872diagnostics.Add(ErrorCode.ERR_PartialMemberInconsistentTupleNames, implementation.GetFirstLocation(), this, implementation); 876diagnostics.Add(ErrorCode.WRN_PartialMemberSignatureDifference, implementation.GetFirstLocation(), 883diagnostics.Add(ErrorCode.ERR_PartialMemberStaticDifference, implementation.GetFirstLocation()); 888diagnostics.Add(ErrorCode.ERR_PartialMemberUnsafeDifference, implementation.GetFirstLocation()); 894diagnostics.Add(ErrorCode.ERR_PartialMemberAccessibilityDifference, implementation.GetFirstLocation()); 902diagnostics.Add(ErrorCode.ERR_PartialMemberExtendedModDifference, implementation.GetFirstLocation());

72diagnostics.Add(ErrorCode.ERR_InterfaceEventInitializer, this.GetFirstLocation(), this); 76diagnostics.Add(ErrorCode.ERR_AbstractEventInitializer, this.GetFirstLocation(), this); 80diagnostics.Add(ErrorCode.ERR_ExternEventInitializer, this.GetFirstLocation(), this); 84diagnostics.Add(ErrorCode.ERR_PartialEventInitializer, this.GetFirstLocation(), this); 98diagnostics.Add(ErrorCode.ERR_FieldlikeEventsInRoStruct, this.GetFirstLocation()); 107diagnostics.Add(ErrorCode.ERR_RuntimeDoesNotSupportStaticAbstractMembersInInterfaces, this.GetFirstLocation()); 114diagnostics.Add(ErrorCode.ERR_RuntimeDoesNotSupportDefaultInterfaceImplementation, this.GetFirstLocation()); 119diagnostics.Add(ErrorCode.ERR_EventNeedsBothAccessors, this.GetFirstLocation(), this);

220=> ImmutableArray.Create(GetFirstLocation()); 223=> GetFirstLocation(); 333diagnostics.Add(ErrorCode.ERR_CircConstValue, GetFirstLocation(), this);

415=> ImmutableArray.Create(GetFirstLocation());

248diagnostics.Add(ErrorCode.ERR_PartialModifierConflict, GetFirstLocation(), this); 265diagnostics.Add(AccessCheck.GetProtectedMemberInSealedTypeError(ContainingType), GetFirstLocation(), this); 358diagnostics.Add(ErrorCode.ERR_AbstractSealedStatic, GetFirstLocation(), this); 364diagnostics.Add(ErrorCode.ERR_SealedStaticClass, GetFirstLocation(), this); 416modifierErrors = ModifierUtils.CheckAccessibility(mods, this, isExplicitInterfaceImplementation: false, diagnostics, this.GetFirstLocation()); 437diagnostics.Add(ErrorCode.ERR_FileTypeNoExplicitAccessibility, GetFirstLocation(), this); 1342diagnostics.Add(ErrorCode.ERR_PartialTypeKindConflict, t.GetFirstLocation(), t); 1346diagnostics.Add(ErrorCode.ERR_DuplicateNameInClass, t.GetFirstLocation(), this, t.Name); 1385diagnostics.Add(ErrorCode.ERR_MemberNameSameAsType, member.GetFirstLocation(), this.Name); 1814var location = GetFirstLocation(); 1938diagnostics.Add(ErrorCode.ERR_CloneDisallowedInRecord, member.GetFirstLocation()); 2047diagnostics.Add(ErrorCode.ERR_DuplicateNameInClass, symbol.GetFirstLocation(), this, symbol.Name); 2077diagnostics.Add(ErrorCode.ERR_DuplicateConversionInClass, conversion.GetFirstLocation(), this); 2163diagnostics.Add(ErrorCode.ERR_OverloadRefKind, method1.GetFirstLocation(), this, methodKind.Localize(), refKind1.ToParameterDisplayString(), refKind2.ToParameterDisplayString()); 2175diagnostics.Add(ErrorCode.ERR_MemberAlreadyExists, method1.GetFirstLocation(), methodName, this); 2217diagnostics.Add(ErrorCode.ERR_DuplicateNameInClass, indexer.GetFirstLocation(), this, indexerName); 2248diagnostics.Add(ErrorCode.ERR_InconsistentIndexerNames, indexer.GetFirstLocation()); 2261diagnostics.Add(ErrorCode.ERR_DuplicateNameInClass, indexer.GetFirstLocation(), this, indexerName); 2270diagnostics.Add(ErrorCode.ERR_MemberAlreadyExists, indexer.GetFirstLocation(), SyntaxFacts.GetText(SyntaxKind.ThisKeyword), this); 2304diagnostics.Add(ErrorCode.ERR_DuplicateNameInClass, dup.GetFirstLocation(), this, tp.Name); 2413diagnostics.Add(ErrorCode.ERR_StructLayoutCyclePrimaryConstructorParameter, parameterSymbol.GetFirstLocation(), parameterSymbol, type); 2421diagnostics.Add(ErrorCode.ERR_StructLayoutCycle, symbol.GetFirstLocation(), symbol, type); 2452diagnostics.Add(ErrorCode.ERR_ProtectedInStatic, member.GetFirstLocation(), member); 2525diagnostics.Add(ErrorCode.ERR_OperatorNeedsMatch, op1.GetFirstLocation(), op1, 2531diagnostics.Add(ErrorCode.ERR_CheckedOperatorNeedsMatch, op1.GetFirstLocation(), op1); 2612diagnostics.Add(ErrorCode.WRN_EqualsWithoutGetHashCode, this.GetFirstLocation(), this); 2618diagnostics.Add(ErrorCode.WRN_EqualityOpWithoutEquals, this.GetFirstLocation(), this); 2624diagnostics.Add(ErrorCode.WRN_EqualityOpWithoutGetHashCode, this.GetFirstLocation(), this); 2636_ = Binder.GetWellKnownTypeMember(DeclaringCompilation, WellKnownMember.System_Runtime_CompilerServices_RequiredMemberAttribute__ctor, diagnostics, GetFirstLocation()); 2641_ = Binder.GetWellKnownTypeMember(DeclaringCompilation, WellKnownMember.System_Runtime_CompilerServices_CompilerFeatureRequiredAttribute__ctor, diagnostics, GetFirstLocation()); 2646_ = Binder.GetWellKnownTypeMember(DeclaringCompilation, WellKnownMember.System_Diagnostics_CodeAnalysis_SetsRequiredMembersAttribute__ctor, diagnostics, GetFirstLocation()); 2660diagnostics.Add(ErrorCode.ERR_RequiredMembersBaseTypeInvalid, method.GetFirstLocation(), BaseTypeNoUseSiteDiagnostics); 2674diagnostics.Add(ErrorCode.ERR_ScriptsAndSubmissionsCannotHaveRequiredMembers, member.GetFirstLocation()); 2720diagnostics.Add(ErrorCode.ERR_StructLayoutCycle, f.GetFirstLocation(), f, type); 2784diagnostics.Add(ErrorCode.WRN_SequentialOnPartialClass, GetFirstLocation(), this); 2797diagnostics.Add(ErrorCode.WRN_SequentialOnPartialClass, GetFirstLocation(), this); 3732diagnostics.Add(ErrorCode.ERR_PartialMethodMustHaveLatent, method.GetFirstLocation(), method); 3736diagnostics.Add(ErrorCode.ERR_PartialMethodWithAccessibilityModsMustHaveImplementation, method.GetFirstLocation(), method); 3745property.GetFirstLocation(), 3755constructor.GetFirstLocation(), 3765ev.GetFirstLocation(), 3810diagnostics.Add(ErrorCode.ERR_PartialMethodOnlyOneActual, currentMethod.GetFirstLocation()); 3816diagnostics.Add(ErrorCode.ERR_PartialMethodOnlyOneLatent, currentMethod.GetFirstLocation()); 3829diagnostics.Add(ErrorCode.ERR_PartialPropertyDuplicateImplementation, currentProperty.GetFirstLocation()); 3834diagnostics.Add(ErrorCode.ERR_PartialPropertyDuplicateDefinition, currentProperty.GetFirstLocation()); 3840diagnostics.Add(ErrorCode.ERR_PartialPropertyDuplicateInitializer, currentProperty.GetFirstLocation()); 3863diagnostics.Add(errorCode, propertyToBlame.GetFirstLocation(), foundAccessor); 3879diagnostics.Add(ErrorCode.ERR_PartialMemberDuplicateImplementation, currentConstructor.GetFirstLocation(), currentConstructor); 3885diagnostics.Add(ErrorCode.ERR_PartialMemberDuplicateDefinition, currentConstructor.GetFirstLocation(), currentConstructor); 3899diagnostics.Add(ErrorCode.ERR_PartialMemberDuplicateImplementation, currentEvent.GetFirstLocation(), currentEvent); 3905diagnostics.Add(ErrorCode.ERR_PartialMemberDuplicateDefinition, currentEvent.GetFirstLocation(), currentEvent); 4127return locationFrom.GetFirstLocation(); 4136return locationFrom.GetFirstLocation(); 4266diagnostics.Add(ErrorCode.ERR_InterfacesCantContainConstructors, member.GetFirstLocation()); 4273diagnostics.Add(ErrorCode.ERR_OnlyClassesCanContainDestructors, member.GetFirstLocation()); 4313var location = m.GetFirstLocation(); 4349MessageID.IDS_FeatureStructFieldInitializers.CheckFeatureAvailability(diagnostics, symbol.DeclaringCompilation, symbol.GetFirstLocation()); 4355diagnostics.Add(ErrorCode.ERR_StructHasInitializersAndNoDeclaredConstructor, GetFirstLocation()); 4469diagnostics.Add(ErrorCode.WRN_RecordEqualsWithoutGetHashCode, thisEquals.GetFirstLocation(), declaration.Name); 4522diagnostics.Add(ErrorCode.ERR_NonPublicAPIInRecord, deconstruct.GetFirstLocation(), deconstruct); 4527diagnostics.Add(ErrorCode.ERR_SignatureMismatchInRecord, deconstruct.GetFirstLocation(), deconstruct, targetMethod.ReturnType); 4532diagnostics.Add(ErrorCode.ERR_StaticAPIInRecord, deconstruct.GetFirstLocation(), deconstruct); 4567diagnostics.Add(ErrorCode.ERR_RecordAmbigCtor, copyCtor.GetFirstLocation()); 4576diagnostics.Add(ErrorCode.ERR_CopyConstructorWrongAccessibility, constructor.GetFirstLocation(), constructor); 4621diagnostics.Add(ErrorCode.ERR_NonPrivateAPIInRecord, printMembersMethod.GetFirstLocation(), printMembersMethod); 4626diagnostics.Add(ErrorCode.ERR_NonProtectedAPIInRecord, printMembersMethod.GetFirstLocation(), printMembersMethod); 4633diagnostics.Add(ErrorCode.ERR_SignatureMismatchInRecord, printMembersMethod.GetFirstLocation(), printMembersMethod, targetMethod.ReturnType); 4669var languageVersion = ((CSharpParseOptions)this.GetFirstLocation().SourceTree!.Options).LanguageVersion; 4673this.GetFirstLocation(), 4696toStringMethod.GetFirstLocation()); 4780param.GetFirstLocation(), 4809diagnostics.Add(ErrorCode.ERR_HiddenPositionalMember, param.GetFirstLocation(), symbol); 4849diagnostics.Add(ErrorCode.ERR_SealedAPIInRecord, getHashCode.GetFirstLocation(), getHashCode); 4883diagnostics.Add(ErrorCode.ERR_NonPrivateAPIInRecord, equalityContract.GetFirstLocation(), equalityContract); 4888diagnostics.Add(ErrorCode.ERR_NonProtectedAPIInRecord, equalityContract.GetFirstLocation(), equalityContract); 4895diagnostics.Add(ErrorCode.ERR_SignatureMismatchInRecord, equalityContract.GetFirstLocation(), equalityContract, targetProperty.Type); 4905diagnostics.Add(ErrorCode.ERR_EqualityContractRequiresGetter, equalityContract.GetFirstLocation(), equalityContract); 4949diagnostics.Add(ErrorCode.ERR_NonPublicAPIInRecord, thisEquals.GetFirstLocation(), thisEquals); 4954diagnostics.Add(ErrorCode.ERR_SignatureMismatchInRecord, thisEquals.GetFirstLocation(), thisEquals, targetMethod.ReturnType); 4969diagnostics.Add(ErrorCode.ERR_NotOverridableAPIInRecord, symbol.GetFirstLocation(), symbol); 4973diagnostics.Add(ErrorCode.ERR_StaticAPIInRecord, symbol.GetFirstLocation(), symbol);

105diagnostics.Add(ErrorCode.ERR_UnimplementedAbstractMethod, this.GetFirstLocation(), this, abstractMember); 168Diagnostic diag = new CSDiagnostic(new CSDiagnosticInfo(ErrorCode.ERR_DuplicateExplicitImpl, interfaceMember), this.GetFirstLocation()); 229var info = new CSDiagnosticInfo(ErrorCode.ERR_MixingWinRTEventWithRegular, args, ImmutableArray<Symbol>.Empty, ImmutableArray.Create<Location>(this.GetFirstLocation())); 230diagnostics.Add(info, implementingEvent.GetFirstLocation()); 329? implementingMember.GetFirstLocation() 330: this.GetFirstLocation(); 347return GetImplementsLocation(implementedInterface) ?? this.GetFirstLocation(); 565diagnostics.Add(ErrorCode.ERR_CantOverrideSealed, method.GetFirstLocation(), method, overridden); 757var overridingMemberLocation = overridingMember.GetFirstLocation(); 860diagnostics.Add(ErrorCode.WRN_MultipleRuntimeOverrideMatches, ambiguousMethod.GetFirstLocation(), ambiguousMethod, overridingMember); 869var overridingMemberLocation = overridingMember.GetFirstLocation(); 1038if (Binder.ReportUseSite(overriddenMember, diagnostics, overridingMember.GetFirstLocation())) 1046var overridingMemberLocation = overridingProperty.GetFirstLocation(); 1099overridingProperty.GetMethod.GetFirstLocation(), 1109overridingProperty.SetMethod.GetFirstLocation(), 1253diagnostics.Add(ErrorCode.WRN_DoesNotReturnMismatch, overrideMethod.GetFirstLocation(), new FormattedSymbol(overrideMethod, SymbolDisplayFormat.MinimallyQualifiedFormat)); 1570var hidingMemberLocation = hidingMember.GetFirstLocation(); 1690diagnostics.Add(ErrorCode.ERR_HidingAbstractMethod, associatedPropertyOrEvent.GetFirstLocation(), associatedPropertyOrEvent, hiddenMember); 1784diagnostics.Add(ErrorCode.ERR_UnifyingInterfaceInstantiations, this.GetFirstLocation(), this, interface1, interface2);

107return TypeSyntax?.Location ?? this.GetFirstLocation();

365diagnostics.Add(code, GetFirstLocation(), this, returnType.Type); 377diagnostics.Add(code, GetFirstLocation(), this, parameter.Type); 381diagnostics.Add(GetFirstLocation(), useSiteInfo); 393diagnostics.Add(ErrorCode.ERR_FileTypeDisallowedInSignature, GetFirstLocation(), returnType.Type, ContainingType); 400diagnostics.Add(ErrorCode.ERR_FileTypeDisallowedInSignature, GetFirstLocation(), param.Type, ContainingType);

1484diagnostics.Add(ErrorCode.ERR_ComImportWithUserCtor, this.GetFirstLocation()); 1493diagnostics.Add(ErrorCode.ERR_ComImportWithImpl, this.GetFirstLocation(), this, ContainingType); 1510diagnostics.Add(errorCode, this.GetFirstLocation(), this); 1519AsyncMethodChecks(verifyReturnType: true, this.GetFirstLocation(), diagnostics);

526diagnostics.Add(ErrorCode.ERR_PartialWrongConstraints, GetFirstLocation(), this, typeParameters[i]); 1607diagnostics.Add(ErrorCode.ERR_ComImportWithBase, this.GetFirstLocation(), this.Name); 1844diagnostics.Add(ErrorCode.WRN_ObsoleteMembersShouldNotBeRequired, member.GetFirstLocation(), member); 1851Binder.GetWellKnownTypeMember(DeclaringCompilation, WellKnownMember.System_Reflection_DefaultMemberAttribute__ctor, diagnostics, indexerSymbol.TryGetFirstLocation() ?? GetFirstLocation()); 1858diagnostics.Add(ErrorCode.ERR_InvalidInlineArrayLayout, GetFirstLocation()); 1867diagnostics.Add(ErrorCode.ERR_InlineArrayUnsupportedElementFieldModifier, elementField.TryGetFirstLocation() ?? GetFirstLocation()); 1881diagnostics.Add(ErrorCode.WRN_InlineArrayIndexerNotUsed, indexer.TryGetFirstLocation() ?? GetFirstLocation()); 1889diagnostics.Add(ErrorCode.WRN_InlineArraySliceNotUsed, slice.TryGetFirstLocation() ?? GetFirstLocation()); 1912diagnostics.Add(ErrorCode.WRN_InlineArrayConversionOperatorNotUsed, conversion.TryGetFirstLocation() ?? GetFirstLocation()); 1921diagnostics.Add(ErrorCode.WRN_InlineArrayNotSupportedByLanguage, elementField.TryGetFirstLocation() ?? GetFirstLocation()); 1925diagnostics.Add(ErrorCode.WRN_InlineArrayNotSupportedByLanguage, GetFirstLocation()); 1931diagnostics.Add(ErrorCode.ERR_InvalidInlineArrayFields, GetFirstLocation()); 1936diagnostics.Add(ErrorCode.ERR_RuntimeDoesNotSupportInlineArrayTypes, GetFirstLocation()); 1963diagnostics.Add(ErrorCode.ERR_EmbeddedAttributeMustFollowPattern, GetFirstLocation());

341var info = diagnostics.Add(ErrorCode.ERR_PartialMultipleBases, GetFirstLocation(), this); 421diagnostics.Add(GetFirstLocation(), useSiteInfo); 679diagnostics.Add(ErrorCode.ERR_CycleInInterfaceInheritance, GetFirstLocation(), this, t))); 703diagnostics.Add(GetFirstLocation(), useSiteInfo); 757diagnostics.Add(ErrorCode.ERR_CircularBase, GetFirstLocation(), declaredBase, this)); 777diagnostics.Add(useSiteInfo.Diagnostics.IsNullOrEmpty() ? Location.None : (FindBaseRefSyntax(declaredBase) ?? GetFirstLocation()), useSiteInfo);

77Binder.ReportUseSite(defaultUnderlyingType, diagnostics, this.GetFirstLocation());

301diagnostics.Add(ErrorCode.ERR_DuplicateAlias, pair.Value.Alias.GetFirstLocation(), pair.Key); 370diagnostics.Add(ErrorCode.ERR_DuplicateAlias, externAlias.Alias.GetFirstLocation(), externAlias.Alias.Name);

233this.ReturnType.CheckAllConstraints(compilation, conversions, this.GetFirstLocation(), diagnostics); 237parameter.Type.CheckAllConstraints(compilation, conversions, parameter.GetFirstLocation(), diagnostics);

482diagnostics.Add(ErrorCode.ERR_PartialMethodReturnTypeDifference, implementation.GetFirstLocation()); 487diagnostics.Add(ErrorCode.ERR_PartialMemberInconsistentTupleNames, implementation.GetFirstLocation(), definition, implementation); 492diagnostics.Add(ErrorCode.ERR_PartialMemberRefReturnDifference, implementation.GetFirstLocation()); 497diagnostics.Add(ErrorCode.ERR_PartialMemberStaticDifference, implementation.GetFirstLocation()); 502diagnostics.Add(ErrorCode.ERR_PartialMemberReadOnlyDifference, implementation.GetFirstLocation()); 507diagnostics.Add(ErrorCode.ERR_PartialMethodExtensionDifference, implementation.GetFirstLocation()); 512diagnostics.Add(ErrorCode.ERR_PartialMemberUnsafeDifference, implementation.GetFirstLocation()); 517diagnostics.Add(ErrorCode.ERR_PartialMemberParamsDifference, implementation.GetFirstLocation()); 523diagnostics.Add(ErrorCode.ERR_PartialMemberAccessibilityDifference, implementation.GetFirstLocation()); 531diagnostics.Add(ErrorCode.ERR_PartialMemberExtendedModDifference, implementation.GetFirstLocation()); 542diagnostics.Add(ErrorCode.ERR_ScopedMismatchInParameterOfPartial, implementingMethod.GetFirstLocation(), new FormattedSymbol(implementingParameter, SymbolDisplayFormat.ShortFormat)); 559diagnostics.Add(ErrorCode.WRN_NullabilityMismatchInReturnTypeOnPartial, implementingMethod.GetFirstLocation()); 563diagnostics.Add(ErrorCode.WRN_NullabilityMismatchInParameterTypeOnPartial, implementingMethod.GetFirstLocation(), new FormattedSymbol(implementingParameter, SymbolDisplayFormat.ShortFormat)); 573diagnostics.Add(ErrorCode.WRN_PartialMethodTypeDifference, implementation.GetFirstLocation(), 611diagnostics.Add(ErrorCode.ERR_PartialMethodInconsistentConstraints, implementation.GetFirstLocation(), implementation, typeParameter2.Name); 615diagnostics.Add(ErrorCode.WRN_NullabilityMismatchInConstraintsOnPartialImplementation, implementation.GetFirstLocation(), implementation, typeParameter2.Name); 675diagnostics.Add(report, typeParameter.GetFirstLocation(), this, typeParameter,

856diagnostics.Add(ErrorCode.ERR_PartialMemberAccessibilityDifference, implementationAccessor.GetFirstLocation()); 861diagnostics.Add(ErrorCode.ERR_PartialMemberReadOnlyDifference, implementationAccessor.GetFirstLocation()); 867diagnostics.Add(ErrorCode.ERR_PartialPropertyInitMismatch, implementationAccessor.GetFirstLocation(), implementationAccessor, accessorName);

695diagnostics.Add(ErrorCode.ERR_PartialMemberTypeDifference, implementation.GetFirstLocation()); 700diagnostics.Add(ErrorCode.ERR_PartialMemberInconsistentTupleNames, implementation.GetFirstLocation(), this, implementation); 706diagnostics.Add(ErrorCode.ERR_PartialMemberRefReturnDifference, implementation.GetFirstLocation()); 712diagnostics.Add(ErrorCode.WRN_PartialMemberSignatureDifference, implementation.GetFirstLocation(), 719diagnostics.Add(ErrorCode.ERR_PartialPropertyRequiredDifference, implementation.GetFirstLocation()); 724diagnostics.Add(ErrorCode.ERR_PartialMemberStaticDifference, implementation.GetFirstLocation()); 729diagnostics.Add(ErrorCode.ERR_PartialMemberReadOnlyDifference, implementation.GetFirstLocation()); 734diagnostics.Add(ErrorCode.ERR_PartialMemberUnsafeDifference, implementation.GetFirstLocation()); 739diagnostics.Add(ErrorCode.ERR_PartialMemberParamsDifference, implementation.GetFirstLocation()); 745diagnostics.Add(ErrorCode.ERR_PartialMemberAccessibilityDifference, implementation.GetFirstLocation()); 753diagnostics.Add(ErrorCode.ERR_PartialMemberExtendedModDifference, implementation.GetFirstLocation()); 765diagnostics.Add(ErrorCode.ERR_ScopedMismatchInParameterOfPartial, implementation.GetFirstLocation(), new FormattedSymbol(implementation.Parameters[i], SymbolDisplayFormat.ShortFormat));

353diagnostics.Add(ErrorCode.WRN_AccessorDoesNotUseBackingField, accessorToBlame.GetFirstLocation(), accessorName, property); 921diagnostics.Add(ErrorCode.ERR_RefPropertyCannotHaveSetAccessor, _setMethod.GetFirstLocation()); 958diagnostics.Add(ErrorCode.ERR_AutoPropertyMustHaveGetAccessor, _setMethod!.GetFirstLocation()); 1125diagnostics.Add(ErrorCode.ERR_InvalidPropertyAccessMod, accessor.GetFirstLocation(), accessor, this); 1147diagnostics.Add(ErrorCode.ERR_PrivateAbstractAccessor, accessor.GetFirstLocation(), accessor); 1170diagnostics.Add(ErrorCode.ERR_ExplicitPropertyAddingAccessor, thisAccessor.GetFirstLocation(), thisAccessor, explicitlyImplementedProperty); 1175diagnostics.Add(ErrorCode.ERR_ExplicitPropertyMismatchInitOnly, thisAccessor.GetFirstLocation(), thisAccessor, otherAccessor); 1762parameter.Type.CheckAllConstraints(DeclaringCompilation, conversions, parameter.GetFirstLocation(), diagnostics);

59diagnostics.Add(ErrorCode.ERR_InterfacesCantContainConversionOrEqualityOperators, this.GetFirstLocation()); 79diagnostics.Add(ErrorCode.ERR_ExplicitImplementationOfOperatorsMustBeStatic, this.GetFirstLocation(), this); 85diagnostics.Add(ErrorCode.ERR_OperatorsMustBeStatic, this.GetFirstLocation(), this); 336diagnostics.Add(ErrorCode.ERR_IllegalRefParam, this.GetFirstLocation()); 456diagnostics.Add(ErrorCode.ERR_ConversionWithInterface, this.GetFirstLocation(), this); 470diagnostics.Add(IsAbstract || IsVirtual ? ErrorCode.ERR_AbstractConversionNotInvolvingContainedType : ErrorCode.ERR_ConversionNotInvolvingContainedType, this.GetFirstLocation()); 481diagnostics.Add(ErrorCode.ERR_IdentityConversion, this.GetFirstLocation()); 549diagnostics.Add(ErrorCode.ERR_BadDynamicConversion, this.GetFirstLocation(), this); 577diagnostics.Add(ErrorCode.ERR_ConversionWithBase, this.GetFirstLocation(), this); 582diagnostics.Add(ErrorCode.ERR_ConversionWithDerived, this.GetFirstLocation(), this); 585diagnostics.Add(this.GetFirstLocation(), useSiteInfo); 594diagnostics.Add(ErrorCode.ERR_OperatorCantReturnVoid, this.GetFirstLocation()); 606diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractUnaryOperatorSignature : ErrorCode.ERR_BadUnaryOperatorSignature, this.GetFirstLocation()); 620diagnostics.Add(ErrorCode.ERR_OpTFRetType, this.GetFirstLocation()); 626diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractUnaryOperatorSignature : ErrorCode.ERR_BadUnaryOperatorSignature, this.GetFirstLocation()); 676diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractIncDecSignature : ErrorCode.ERR_BadIncDecSignature, this.GetFirstLocation()); 685diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractIncDecRetType : ErrorCode.ERR_BadIncDecRetType, this.GetFirstLocation()); 688diagnostics.Add(this.GetFirstLocation(), useSiteInfo); 725diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractShiftOperatorSignature : ErrorCode.ERR_BadShiftOperatorSignature, this.GetFirstLocation()); 729var location = this.GetFirstLocation(); 744diagnostics.Add((IsAbstract || IsVirtual) ? ErrorCode.ERR_BadAbstractBinaryOperatorSignature : ErrorCode.ERR_BadBinaryOperatorSignature, this.GetFirstLocation()); 755diagnostics.Add(ErrorCode.ERR_BadAbstractEqualityOperatorSignature, this.GetFirstLocation(), this.ContainingType);

48diagnostics.Add(ErrorCode.ERR_TypeVariableSameAsParent, result.GetFirstLocation(), result.Name);

293symbol.CheckUnsafeModifier(modifiers, symbol.GetFirstLocation(), diagnostics);

47diagnostics.Add(ErrorCode.ERR_DoesNotOverrideBaseMethod, GetFirstLocation(), this, ContainingType.BaseTypeNoUseSiteDiagnostics);

44containingType.GetFirstLocation(), 62=> ContainingType.GetFirstLocation(); 70ContainingType.GetFirstLocation(), 127diagnostics.Add(ErrorCode.ERR_DoesNotOverrideBaseEqualityContract, overriding.GetFirstLocation(), overriding, overriding.ContainingType.BaseTypeNoUseSiteDiagnostics);

39: base(MethodKind.UserDefinedOperator, explicitInterfaceType: null, name, containingType, containingType.GetFirstLocation(), (CSharpSyntaxNode)containingType.SyntaxReferences[0].GetSyntax(), 48protected sealed override Location ReturnTypeLocation => GetFirstLocation();

54diagnostics.Add(ErrorCode.ERR_DoesNotOverrideMethodFromObject, overriding.GetFirstLocation(), overriding);

24: base(containingType, name, containingType.GetFirstLocation(), (CSharpSyntaxNode)containingType.SyntaxReferences[0].GetSyntax(), 45protected sealed override Location ReturnTypeLocation => GetFirstLocation();

112diagnostics.Add(ErrorCode.ERR_DoesNotOverrideBaseMethod, GetFirstLocation(), this, ContainingType.BaseTypeNoUseSiteDiagnostics); 290diagnostics.Add(ErrorCode.ERR_DoesNotOverrideBaseMethod, overriding.GetFirstLocation(), overriding, baseType);

42backingParameter.GetFirstLocation(),

211_locations.IsEmpty ? null : GetFirstLocation(),

856diagnostics.Add(ErrorCode.ERR_DuplicateExplicitImpl, implementingType.GetFirstLocation(), interfaceMember); 1780implementingEvent.GetFirstLocation(), new FormattedSymbol(implementedEvent, SymbolDisplayFormat.MinimallyQualifiedFormat)); 1811implementingMethod.GetFirstLocation(), new FormattedSymbol(implementedMethod.ConstructedFrom, SymbolDisplayFormat.MinimallyQualifiedFormat)); 1832implementingMethod.GetFirstLocation(), 2134return member.GetFirstLocation(); 2140return snt?.GetImplementsLocation(@interface) ?? implementingType.GetFirstLocation();

92diagnostics.Add(ErrorCode.ERR_VarianceInterfaceNesting, member.GetFirstLocation()); 228locationProvider: e => e.GetFirstLocation(), 268locationProvider: t => t.GetFirstLocation(), 466var location = locationProvider(locationArg) ?? unsafeTypeParameter.GetFirstLocation();