JetBrains Rider 2022.1 Help

Code Inspections in C#

In UNKNOWN, JetBrains Rider 2022.1 provides two kinds of code inspections: 984 inspections that detect errors such as broken syntax, unresolved symbols, compiler errors, and so on (you cannot configure or disable any of these inspections), and 814 proprietary code inspections, any of which you can disable or change its severity level.
These code inspections help you detect code issues in design time in all open files, and additionally they allow you to find code issues in specific scope.

Configurable UNKNOWN inspections are listed below, grouped by their categories.

Code Notification (2 inspections)

This category groups code inspections with minor severity levels.

Inspection


ID


EditorConfig property

Default severity

Method invocation is skipped


InvocationIsSkipped


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Hint

Part of the code cannot be parsed


NonParsableElement


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Warning

Common Practices and Code Improvements (156 inspections)

This category groups inspections that hunt for medium severity issues that mainly affect code readability.

Inspection


ID


EditorConfig property

Default severity

Access to a static member of a type via a derived type


AccessToStaticMemberViaDerivedType


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Warning

Annotation duplicate in hierarchy


AnnotationRedundancyInHierarchy


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Warning

Auto-property can be made get-only (non-private accessibility)


AutoPropertyCanBeMadeGetOnly.Global


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Suggestion

Auto-property can be made get-only (private accessibility)


AutoPropertyCanBeMadeGetOnly.Local


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Suggestion

Base member has 'params' parameter, but overrider hasn't


BaseMemberHasParams


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Warning

Check for reference equality instead


CheckForReferenceEqualityInstead.1


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Suggestion

Check for reference equality instead


CheckForReferenceEqualityInstead.3


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Suggestion

Check for reference equality instead


CheckForReferenceEqualityInstead.2


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Suggestion

Check for reference equality instead


CheckForReferenceEqualityInstead.4


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Suggestion

Class can be made sealed (non-inheritable) (non-private accessibility)


ClassCanBeSealed.Global


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Disabled

Class can be made sealed (non-inheritable) (private accessibility)


ClassCanBeSealed.Local


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Disabled

Container nullability attribute usage with declaration of non-container type


ContainerAnnotationRedundancy


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Warning

Convert 'if do while' to 'while


ConvertIfDoToWhile


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Suggestion

Convert 'if' to '||'


ConvertIfToOrExpression


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Suggestion

Convert local variable or field to constant (non-private accessibility)


ConvertToConstant.Global


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Hint

Convert local variable or field to constant (private accessibility)


ConvertToConstant.Local


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Hint

Declaration nullability inferred (parameter is inferred to be not null)


AnnotateNotNullParameter


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Disabled

Declaration nullability inferred (parameter is inferred to be nullable)


AnnotateCanBeNullParameter


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Disabled

Declaration nullability inferred (type member is inferred to be not null)


AnnotateNotNullTypeMember


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Disabled

Declaration nullability inferred (type member is inferred to be nullable)


AnnotateCanBeNullTypeMember


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Disabled

Empty control statement body


EmptyEmbeddedStatement


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Warning

Empty statement is redundant


EmptyStatement


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Warning

Field can be made readonly (non-private accessibility)


FieldCanBeMadeReadOnly.Global


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Suggestion

Field can be made readonly (private accessibility)


FieldCanBeMadeReadOnly.Local


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Suggestion

Get-only auto-property is never assigned


UnassignedGetOnlyAutoProperty


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Warning

Invert condition


InvertCondition.1


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Hint

Iteration variable can be declared with a more specific type


MoreSpecificForeachVariableTypeAvailable


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Suggestion

Join local variable declaration and assignment


JoinDeclarationAndInitializer


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Suggestion

Literal's length can be reduced by using verbatim string


UseVerbatimString


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Hint

Local function can be made static


LocalFunctionCanBeMadeStatic


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Disabled

Local variable has too wide declaration scope


TooWideLocalVariableScope


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Suggestion

Make constructor in abstract class protected


PublicConstructorInAbstractClass


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Suggestion

Member can be made private (non-private accessibility)


MemberCanBePrivate.Global


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Suggestion

Member can be made private (private accessibility)


MemberCanBePrivate.Local


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Suggestion

Member can be made protected (non-private accessibility)


MemberCanBeProtected.Global


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Suggestion

Member can be made protected (private accessibility)


MemberCanBeProtected.Local


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Suggestion

Member can be made static (shared) (non-private accessibility)


MemberCanBeMadeStatic.Global


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Hint

Member can be made static (shared) (private accessibility)


MemberCanBeMadeStatic.Local


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Hint

Member or type can be made internal(friend)


MemberCanBeInternal


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Disabled

Method has async overload


MethodHasAsyncOverload


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Suggestion

Method has async overload with cancellation support


MethodHasAsyncOverloadWithCancellation


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Suggestion

Method supports cancellation


MethodSupportsCancellation


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Suggestion

Missing XML comment for private or internal type or member


InternalOrPrivateMemberNotDocumented


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Disabled

Multiple nullable attributes usage


MultipleNullableAttributesUsage


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Warning

Nested string interpolation can be inlined


NestedStringInterpolation


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Suggestion

Nullability attribute usage with declaration of void or value type


AnnotationRedundancyAtValueType


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Warning

Nullability attribute used with declaration that cannot be directly referenced from other code


NotObservableAnnotationRedundancy


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Warning

Parameter can be declared with base type


SuggestBaseTypeForParameter


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Hint

Parameter can be declared with base type


SuggestBaseTypeForParameterInConstructor


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Hint

Parameter type can be IEnumerable<T> (non-private accessibility)


ParameterTypeCanBeEnumerable.Global


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Hint

Parameter type can be IEnumerable<T> (private accessibility)


ParameterTypeCanBeEnumerable.Local


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Hint

Possible mistaken argument


PossibleMistakenArgument


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Warning

Possible mistaken call to GetType()


PossibleMistakenCallToGetType.1


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Warning

Possible mistaken call to GetType()


PossibleMistakenCallToGetType.2


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Warning

Property can be made init-only (non-private accessibility)


PropertyCanBeMadeInitOnly.Global


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Suggestion

Property can be made init-only (private accessibility)


PropertyCanBeMadeInitOnly.Local


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Suggestion

Redundant 'is'


RedundantIsBeforeRelationalPattern


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Suggestion

Remove constructor invocation


RemoveConstructorInvocation


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Disabled

Remove redundant statement


RemoveRedundantOrStatement.False


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Suggestion

Remove redundant statement


RemoveRedundantOrStatement.True


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Suggestion

Remove ToList()


RemoveToList.1


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Suggestion

Remove ToList()


RemoveToList.2


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Suggestion

Replace with FirstOrDefault($args$)


ReplaceWithFirstOrDefault.1


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Suggestion

Replace with FirstOrDefault($args$)


ReplaceWithFirstOrDefault.2


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Suggestion

Replace with FirstOrDefault($args$)


ReplaceWithFirstOrDefault.3


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Suggestion

Replace with FirstOrDefault($args$)


ReplaceWithFirstOrDefault.4


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Suggestion

Replace with LastOrDefault($args$)


ReplaceWithLastOrDefault.1


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Suggestion

Replace with LastOrDefault($args$)


ReplaceWithLastOrDefault.2


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Suggestion

Replace with LastOrDefault($args$)


ReplaceWithLastOrDefault.3


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Suggestion

Replace with LastOrDefault($args$)


ReplaceWithLastOrDefault.4


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Suggestion

Replace with OfType<T>()


ReplaceWithOfType.1


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Suggestion

Replace with OfType<T>()


ReplaceWithOfType.2


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Suggestion

Replace with OfType<T>()


ReplaceWithOfType.3


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Suggestion

Replace with OfType<T>().Any()


ReplaceWithOfType.Any.1


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Suggestion

Replace with OfType<T>().Any() (replace with OfType<T>().Any(..))


ReplaceWithOfType.Any.2


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Suggestion

Replace with OfType<T>().Count()


ReplaceWithOfType.Count.1


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Suggestion

Replace with OfType<T>().Count() (replace with OfType<T>().Count(..))


ReplaceWithOfType.Count.2


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Suggestion

Replace with OfType<T>().First()


ReplaceWithOfType.First.1


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Suggestion

Replace with OfType<T>().First() (replace with OfType<T>().First(..))


ReplaceWithOfType.First.2


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Suggestion

Replace with OfType<T>().FirstOrDefault()


ReplaceWithOfType.FirstOrDefault.1


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Suggestion

Replace with OfType<T>().FirstOrDefault() (replace with OfType<T>().FirstOrDefault(..))


ReplaceWithOfType.FirstOrDefault.2


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Suggestion

Replace with OfType<T>().Last()


ReplaceWithOfType.Last.1


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Suggestion

Replace with OfType<T>().Last() (replace with OfType<T>().Last(..))


ReplaceWithOfType.Last.2


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Suggestion

Replace with OfType<T>().LastOrDefault()


ReplaceWithOfType.LastOrDefault.1


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Suggestion

Replace with OfType<T>().LastOrDefault() (replace with OfType<T>().LastOrDefault(..))


ReplaceWithOfType.LastOrDefault.2


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Suggestion

Replace with OfType<T>().LongCount()


ReplaceWithOfType.LongCount


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Suggestion

Replace with OfType<T>().Single()


ReplaceWithOfType.Single.1


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Suggestion

Replace with OfType<T>().Single() (replace with OfType<T>().Single(..))


ReplaceWithOfType.Single.2


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Suggestion

Replace with OfType<T>().SingleOrDefault()


ReplaceWithOfType.SingleOrDefault.1


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Suggestion

Replace with OfType<T>().SingleOrDefault() (replace with OfType<T>().SingleOrDefault(..))


ReplaceWithOfType.SingleOrDefault.2


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Suggestion

Replace with OfType<T>().Where() (replace with OfType<T>().Where(..))


ReplaceWithOfType.Where


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Suggestion

Replace with simple assignment


ReplaceWithSimpleAssignment.True


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Suggestion

Replace with simple assignment


ReplaceWithSimpleAssignment.False


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Suggestion

Replace with single assignment


ReplaceWithSingleAssignment.False


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Suggestion

Replace with single assignment


ReplaceWithSingleAssignment.True


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Suggestion

Replace with single call to Any(..)


ReplaceWithSingleCallToAny


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Suggestion

Replace with single call to Count(..)


ReplaceWithSingleCallToCount


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Suggestion

Replace with single call to First(..)


ReplaceWithSingleCallToFirst


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Suggestion

Replace with single call to FirstOrDefault(..)


ReplaceWithSingleCallToFirstOrDefault


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Suggestion

Replace with single call to Last(..)


ReplaceWithSingleCallToLast


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Suggestion

Replace with single call to LastOrDefault(..)


ReplaceWithSingleCallToLastOrDefault


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Suggestion

Replace with single call to Single(..)


ReplaceWithSingleCallToSingle


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Suggestion

Replace with single call to SingleOrDefault(..)


ReplaceWithSingleCallToSingleOrDefault


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Suggestion

Replace with SingleOrDefault($args$)


ReplaceWithSingleOrDefault.1


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Suggestion

Replace with SingleOrDefault($args$)


ReplaceWithSingleOrDefault.2


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Suggestion

Replace with SingleOrDefault($args$)


ReplaceWithSingleOrDefault.3


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Suggestion

Replace with SingleOrDefault($args$)


ReplaceWithSingleOrDefault.4


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Suggestion

Return type can be IEnumerable<T> (non-private accessibility)


ReturnTypeCanBeEnumerable.Global


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Hint

Return type can be IEnumerable<T> (private accessibility)


ReturnTypeCanBeEnumerable.Local


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Hint

Simplify conditional ternary expression


SimplifyConditionalTernaryExpression


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Suggestion

Simplify LINQ expression (use 'All')


SimplifyLinqExpressionUseAll


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Suggestion

Simplify LINQ expression (use 'Any')


SimplifyLinqExpressionUseAny


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Suggestion

Simplify negated pattern


DoubleNegationInPattern


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Suggestion

Simplify negated relational pattern


NegationOfRelationalPattern


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Suggestion

Simplify negative equality expression


NegativeEqualityExpression


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Suggestion

Specify string comparison explicitly


SpecifyStringComparison


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Hint

Specify string culture explicitly


SpecifyACultureInStringConversionExplicitly


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Warning

String literal can be inlined


StringLiteralAsInterpolationArgument


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Suggestion

String.Compare is culture-specific (string.Compare(string, int, string, int) is culture-specific)


StringCompareIsCultureSpecific.4


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Warning

String.Compare is culture-specific (string.Compare(string, int, string, int, bool) is culture-specific)


StringCompareIsCultureSpecific.5


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Warning

String.Compare is culture-specific (string.Compare(string, int, string, int, bool) is culture-specific)


StringCompareIsCultureSpecific.6


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Warning

String.Compare is culture-specific (string.Compare(string, string) is culture-specific)


StringCompareIsCultureSpecific.1


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Warning

String.Compare is culture-specific (string.Compare(string, string, bool) is culture-specific)


StringCompareIsCultureSpecific.2


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Warning

String.Compare is culture-specific (string.Compare(string, string, bool) is culture-specific)


StringCompareIsCultureSpecific.3


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Warning

String.CompareTo is culture-specific


StringCompareToIsCultureSpecific


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Warning

String.EndsWith is culture-specific (string.EndsWith(string) is culture-specific)


StringEndsWithIsCultureSpecific


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Disabled

String.IndexOf is culture-specific (string.IndexOf(string) is culture-specific)


StringIndexOfIsCultureSpecific.1


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Warning

String.IndexOf is culture-specific (string.IndexOf(string, int) is culture-specific)


StringIndexOfIsCultureSpecific.2


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Warning

String.IndexOf is culture-specific (string.IndexOf(string, int) is culture-specific)


StringIndexOfIsCultureSpecific.3


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Warning

String.LastIndexOf is culture-specific (string.LastIndexOf(string) is culture-specific)


StringLastIndexOfIsCultureSpecific.1


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Warning

String.LastIndexOf is culture-specific (string.LastIndexOf(string, int) is culture-specific)


StringLastIndexOfIsCultureSpecific.2


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Warning

String.LastIndexOf is culture-specific (string.LastIndexOf(string, int) is culture-specific)


StringLastIndexOfIsCultureSpecific.3


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Warning

String.StartsWith is culture-specific (string.StartsWith(string) is culture-specific)


StringStartsWithIsCultureSpecific


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Disabled

Struct can be made readonly


StructCanBeMadeReadOnly


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Suggestion

Struct member can be made readonly


StructMemberCanBeMadeReadOnly


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Disabled

try-catch and try-finally statements can be merged


TryStatementsCanBeMerged


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Hint

Type parameter could be declared as covariant or contravariant


TypeParameterCanBeVariant


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Suggestion

Use 'ArgumentNullException.ThrowIfNull'


UseThrowIfNullMethod


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Disabled

Use array creation expression


UseArrayCreationExpression.1


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Suggestion

Use array creation expression


UseArrayCreationExpression.2


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Suggestion

Use 'Array.Empty<T>()'


UseArrayEmptyMethod


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Suggestion

Use cancellation token


UseCancellationTokenForIAsyncEnumerable


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Suggestion

Use compiler-supported nullable attributes


UseNullableAttributesSupportedByCompiler


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Suggestion

Use 'EventArgs.Empty'


UseEventArgsEmptyField


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Suggestion

Use indexed property


UseIndexedProperty


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Suggestion

Use 'is' operator


UseIsOperator.1


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Suggestion

Use 'is' operator


UseIsOperator.2


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Suggestion

Use method Any()


UseMethodAny.0


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Suggestion

Use method Any()


UseMethodAny.1


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Suggestion

Use method Any()


UseMethodAny.2


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Suggestion

Use method Any()


UseMethodAny.3


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Suggestion

Use method Any()


UseMethodAny.4


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Suggestion

Use method IsInstanceOfType(..)


UseMethodIsInstanceOfType


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Suggestion

Use 'MinBy' or 'MaxBy' instead of ordering and taking 'First' or 'Last'


SimplifyLinqExpressionUseMinByAndMaxBy


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Suggestion

Use 'String.IsNullOrEmpty'


ReplaceWithStringIsNullOrEmpty


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Suggestion

Use 'Type.EmptyTypes'


UseEmptyTypesField


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Suggestion

Compiler Warnings (141 inspections)

Inspections in this category detect compiler warnings before you compile.

Inspection


ID


EditorConfig property

Default severity

'#warning' directive


CSharpWarnings::CS1030


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Warning

[InterpolatedStringHandlerArgument] has no effect when applied to lambda parameters and will be ignored at the call site.


CSharpWarnings::CS8971


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Warning

A method marked [DoesNotReturn] should not return.


CSharpWarnings::CS8763


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Warning

A possible null value may not be used for a type marked with [NotNull] or [DisallowNull].


CSharpWarnings::CS8607


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Warning

A previous catch clause already catches all exceptions


CSharpWarnings::CS1058


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Warning

Access to a member through 'base' keyword from anonymous method, lambda expression, query expression or iterator results in unverifiable code


CSharpWarnings::CS1911


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Warning

Alignment value 'value' has a magnitude greater than 'magnitude limit' and may result in a large formatted string.


CSharpWarnings::CS8094


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Warning

Ambiguous reference in XML comment


CSharpWarnings::CS1574


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Warning

Argument cannot be used as an output for parameter due to differences in the nullability of reference types.


CSharpWarnings::CS8624


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Warning

Argument cannot be used for corresponding parameter due to differences in the nullability of reference types.


CSharpWarnings::CS8620


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Warning

Assignment in conditional expression


CSharpWarnings::CS0665


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Warning

Assignment made to same variable


CSharpWarnings::CS1717


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Warning

Async function without await expression


CSharpWarnings::CS1998


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Warning

Async method invocation without await expression


CSharpWarnings::CS4014


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Warning

Asynchronous 'Main' method will not be used as an entry point because a synchronous entry point was found.


CSharpWarnings::CS8892


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Warning

Async-iterator has one or more parameters of type 'CancellationToken' but none of them is annotated with the 'EnumeratorCancellation' attribute.


CSharpWarnings::CS8425


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Warning

'attribute modifier' is not a recognized attribute location. All attributes in this block will be ignored


CSharpWarnings::CS0658


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Warning

'attribute modifier' is not a valid attribute location for this declaration. All attributes in this block will be ignored


CSharpWarnings::CS0657


resharper_c_sharp_warnings_cs0657_highlighting

Warning

Badly formed XML in included comments file


CSharpWarnings::CS1592


resharper_c_sharp_warnings_cs1592_highlighting

Warning

Bitwise-or operator used on a sign-extended operand.


CSharpWarnings::CS0675


resharper_c_sharp_warnings_cs0675_highlighting

Warning

Call to a non-readonly member from a 'readonly' member results in an implicit copy of 'this'


CSharpWarnings::CS8656


resharper_c_sharp_warnings_cs8656_highlighting

Warning

Cannot convert null literal to non-nullable reference type.


CSharpWarnings::CS8625


resharper_c_sharp_warnings_cs8625_highlighting

Warning

Cannot resolve reference in XML comment


CSharpWarnings::CS1574,CS1584,CS1581,CS1580


resharper_c_sharp_warnings_cs1574_cs1584_cs1581_cs1580_highlighting

Warning

Class overrides Object.Equals(object o) but not Object.GetHashCode()


CSharpWarnings::CS0659


resharper_c_sharp_warnings_cs0659_highlighting

Warning

Code is unreachable


CSharpWarnings::CS0162


resharper_c_sharp_warnings_cs0162_highlighting

Warning

Comparing with null of nullable value type always produces 'false'


CSharpWarnings::CS0464


resharper_c_sharp_warnings_cs0464_highlighting

Warning

Comparison to integral constant is useless; the constant is outside the range of type 'type'.


CSharpWarnings::CS0652


resharper_c_sharp_warnings_cs0652_highlighting

Warning

Converting null literal or possible null value to non-nullable type.


CSharpWarnings::CS8600


resharper_c_sharp_warnings_cs8600_highlighting

Warning

Declaring new protected member in sealed class is the same as declaring it as private


CSharpWarnings::CS0628


resharper_c_sharp_warnings_cs0628_highlighting

Warning

Default value specified for parameter will have no effect because it applies to a member that is used in contexts that do not allow optional arguments


CSharpWarnings::CS1066


resharper_c_sharp_warnings_cs1066_highlighting

Warning

Dereference of a possibly null reference.


CSharpWarnings::CS8602


resharper_c_sharp_warnings_cs8602_highlighting

Warning

Duplicate param tag in XML comment


CSharpWarnings::CS1571


resharper_c_sharp_warnings_cs1571_highlighting

Warning

Duplicate typeparam tag in XML comment


CSharpWarnings::CS1710


resharper_c_sharp_warnings_cs1710_highlighting

Warning

Empty switch block


CSharpWarnings::CS1522


resharper_c_sharp_warnings_cs1522_highlighting

Warning

Field is never used


UnusedField.Compiler


resharper_unused_field_compiler_highlighting

Warning

Filter expression is a constant, consider removing the filter


CSharpWarnings::CS7095


resharper_c_sharp_warnings_cs7095_highlighting

Warning

Given expression always matches the provided pattern


CSharpWarnings::CS8794


resharper_c_sharp_warnings_cs8794_highlighting

Warning

Given expression is always of the provided type


CSharpWarnings::CS0183


resharper_c_sharp_warnings_cs0183_highlighting

Warning

Given expression is never of the provided type


CSharpWarnings::CS0184


resharper_c_sharp_warnings_cs0184_highlighting

Warning

'goto case' value is not implicitly convertible to required type


CSharpWarnings::CS0469


resharper_c_sharp_warnings_cs0469_highlighting

Warning

Incorrect signature in XML comment


CSharpWarnings::CS1580


resharper_c_sharp_warnings_cs1580_highlighting

Warning

Introducing a 'Finalize' method can interfere with destructor invocation


CSharpWarnings::CS0465


resharper_c_sharp_warnings_cs0465_highlighting

Warning

Invalid XML in XML comment


CSharpWarnings::CS1570


resharper_c_sharp_warnings_cs1570_highlighting

Warning

Invalid XML include element


CSharpWarnings::CS1590


resharper_c_sharp_warnings_cs1590_highlighting

Warning

Keyword 'new' is redundant


CSharpWarnings::CS0109


resharper_c_sharp_warnings_cs0109_highlighting

Warning

Keyword 'new' is required


CSharpWarnings::CS0108,CS0114


resharper_c_sharp_warnings_cs0108_cs0114_highlighting

Warning

Member cannot be used in this attribute.


CSharpWarnings::CS8776


resharper_c_sharp_warnings_cs8776_highlighting

Warning

Member must conditionally have a non-null value when exiting a function.


CSharpWarnings::CS8775


resharper_c_sharp_warnings_cs8775_highlighting

Warning

Member must have a non-null value when exiting.


CSharpWarnings::CS8774


resharper_c_sharp_warnings_cs8774_highlighting

Warning

Member overrides obsolete member


CSharpWarnings::CS0672


resharper_c_sharp_warnings_cs0672_highlighting

Warning

Method lacks '[DoesNotReturn]' annotation in order to match implemented or overridden member.


CSharpWarnings::CS8770


resharper_c_sharp_warnings_cs8770_highlighting

Warning

Missing XML comment for publicly visible type or member


CSharpWarnings::CS1591


resharper_c_sharp_warnings_cs1591_highlighting

Warning

Multiple override candidates at run-time


CSharpWarnings::CS1957


resharper_c_sharp_warnings_cs1957_highlighting

Warning

Namespace should be default namespace of this project


CSharpWarnings::WME006


resharper_c_sharp_warnings_wme006_highlighting

Warning

Non-accessed field


NotAccessedField.Compiler


resharper_not_accessed_field_compiler_highlighting

Warning

Non-accessed local variable


NotAccessedVariable.Compiler


resharper_not_accessed_variable_compiler_highlighting

Warning

Non-nullable member is uninitialized.


CSharpWarnings::CS8618


resharper_c_sharp_warnings_cs8618_highlighting

Warning

Nullability mismatch in constraints for type parameter.


CSharpWarnings::CS8633


resharper_c_sharp_warnings_cs8633_highlighting

Warning

Nullability of reference types in explicit interface specifier doesn't match interface implemented by the type.


CSharpWarnings::CS8643


resharper_c_sharp_warnings_cs8643_highlighting

Warning

Nullability of reference types in interface implemented by the base type doesn't match.


CSharpWarnings::CS8644


resharper_c_sharp_warnings_cs8644_highlighting

Warning

Nullability of reference types in return type doesn't match implemented member.


CSharpWarnings::CS8616


resharper_c_sharp_warnings_cs8616_highlighting

Warning

Nullability of reference types in return type doesn't match implicitly implemented member.


CSharpWarnings::CS8613


resharper_c_sharp_warnings_cs8613_highlighting

Warning

Nullability of reference types in return type doesn't match overridden member.


CSharpWarnings::CS8609


resharper_c_sharp_warnings_cs8609_highlighting

Warning

Nullability of reference types in return type doesn't match partial method declaration.


CSharpWarnings::CS8819


resharper_c_sharp_warnings_cs8819_highlighting

Warning

Nullability of reference types in return type doesn't match the target delegate (possibly because of nullability attributes).


CSharpWarnings::CS8621


resharper_c_sharp_warnings_cs8621_highlighting

Warning

Nullability of reference types in source type doesn't match target type.


CSharpWarnings::CS8619


resharper_c_sharp_warnings_cs8619_highlighting

Warning

Nullability of reference types in type doesn't match implemented member.


CSharpWarnings::CS8615


resharper_c_sharp_warnings_cs8615_highlighting

Warning

Nullability of reference types in type doesn't match implicitly implemented member.


CSharpWarnings::CS8612


resharper_c_sharp_warnings_cs8612_highlighting

Warning

Nullability of reference types in type doesn't match overridden member.


CSharpWarnings::CS8608


resharper_c_sharp_warnings_cs8608_highlighting

Warning

Nullability of reference types in type of a parameter doesn't match the target delegate (possibly because of nullability attributes).


CSharpWarnings::CS8622


resharper_c_sharp_warnings_cs8622_highlighting

Warning

Nullability of reference types in type of parameter doesn't match implemented member.


CSharpWarnings::CS8617


resharper_c_sharp_warnings_cs8617_highlighting

Warning

Nullability of reference types in type of parameter doesn't match implicitly implemented member.


CSharpWarnings::CS8614


resharper_c_sharp_warnings_cs8614_highlighting

Warning

Nullability of reference types in type of parameter doesn't match overridden member.


CSharpWarnings::CS8610


resharper_c_sharp_warnings_cs8610_highlighting

Warning

Nullability of reference types in type of parameter doesn't match partial method declaration.


CSharpWarnings::CS8611


resharper_c_sharp_warnings_cs8611_highlighting

Warning

Nullability of return type doesn't match implemented member (possibly because of nullability attributes).


CSharpWarnings::CS8768


resharper_c_sharp_warnings_cs8768_highlighting

Warning

Nullability of return type doesn't match implicitly implemented member (possibly because of nullability attributes).


CSharpWarnings::CS8766


resharper_c_sharp_warnings_cs8766_highlighting

Warning

Nullability of return type doesn't match overridden member (possibly because of nullability attributes).


CSharpWarnings::CS8764


resharper_c_sharp_warnings_cs8764_highlighting

Warning

Nullability of type argument doesn't match 'class' constraint.


CSharpWarnings::CS8634


resharper_c_sharp_warnings_cs8634_highlighting

Warning

Nullability of type argument doesn't match constraint type.


CSharpWarnings::CS8631


resharper_c_sharp_warnings_cs8631_highlighting

Warning

Nullability of type argument doesn't match 'notnull' constraint.


CSharpWarnings::CS8714


resharper_c_sharp_warnings_cs8714_highlighting

Warning

Nullability of type of parameter doesn't match implemented member (possibly because of nullability attributes).


CSharpWarnings::CS8769


resharper_c_sharp_warnings_cs8769_highlighting

Warning

Nullability of type of parameter doesn't match implicitly implemented member (possibly because of nullability attributes).


CSharpWarnings::CS8767


resharper_c_sharp_warnings_cs8767_highlighting

Warning

Nullability of type of parameter doesn't match overridden member (possibly because of nullability attributes).


CSharpWarnings::CS8765


resharper_c_sharp_warnings_cs8765_highlighting

Warning

Nullable value type may be null.


CSharpWarnings::CS8629


resharper_c_sharp_warnings_cs8629_highlighting

Warning

Object or collection initializer implicitly dereferences possibly null member.


CSharpWarnings::CS8670


resharper_c_sharp_warnings_cs8670_highlighting

Warning

Operator '==' or operator '!=' with 'Object.Equals(object o)' and 'Object.GetHashCode()' not overridden


CSharpWarnings::CS0660,CS0661


resharper_c_sharp_warnings_cs0660_cs0661_highlighting

Warning

Parameter has no matching param tag in the XML comment


CSharpWarnings::CS1573


resharper_c_sharp_warnings_cs1573_highlighting

Warning

Parameter must conditionally have a non-null value when exiting a function.


CSharpWarnings::CS8762


resharper_c_sharp_warnings_cs8762_highlighting

Warning

Parameter must have a non-null value when exiting because parameter mentioned in [NotNullIfNotNull] annotation is non-null.


CSharpWarnings::CS8824


resharper_c_sharp_warnings_cs8824_highlighting

Warning

Parameter must have a non-null value when exiting.


CSharpWarnings::CS8777


resharper_c_sharp_warnings_cs8777_highlighting

Warning

Parameter occurs after interpolated string handler parameter in the parameter list.


CSharpWarnings::CS8947


resharper_c_sharp_warnings_cs8947_highlighting

Warning

Partial method declarations have inconsistent nullability for type parameter.


CSharpWarnings::CS8667


resharper_c_sharp_warnings_cs8667_highlighting

Warning

Possible mistaken empty statement


CSharpWarnings::CS0642


resharper_c_sharp_warnings_cs0642_highlighting

Warning

Possible null reference argument for a parameter.


CSharpWarnings::CS8604


resharper_c_sharp_warnings_cs8604_highlighting

Warning

Possible null reference assignment.


CSharpWarnings::CS8601


resharper_c_sharp_warnings_cs8601_highlighting

Warning

Possible null reference return.


CSharpWarnings::CS8603


resharper_c_sharp_warnings_cs8603_highlighting

Warning

Possible unintended reference comparison


CSharpWarnings::CS0252,CS0253


resharper_c_sharp_warnings_cs0252_cs0253_highlighting

Warning

Record defined 'Equals' but not 'GetHashCode'


CSharpWarnings::CS8851


resharper_c_sharp_warnings_cs8851_highlighting

Warning

Reference to a volatile field will not be treated as volatile


CSharpWarnings::CS0420


resharper_c_sharp_warnings_cs0420_highlighting

Warning

Return value must be non-null because parameter mentioned in [NotNullIfNotNull] annotation is non-null.


CSharpWarnings::CS8825


resharper_c_sharp_warnings_cs8825_highlighting

Warning

Static type in 'is' or 'as' operator.


CSharpWarnings::CS7023


resharper_c_sharp_warnings_cs7023_highlighting

Warning

Syntax error in XML comment


CSharpWarnings::CS1584


resharper_c_sharp_warnings_cs1584_highlighting

Warning

Taking address of marshal-by-reference class field


CSharpWarnings::CS0197


resharper_c_sharp_warnings_cs0197_highlighting

Warning

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.


CSharpWarnings::CS8632


resharper_c_sharp_warnings_cs8632_highlighting

Warning

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context. Auto-generated code requires an explicit '#nullable' directive in source.


CSharpWarnings::CS8669


resharper_c_sharp_warnings_cs8669_highlighting

Warning

The CallerArgumentExpressionAttribute applied to parameter will have no effect because it's self-referential.


CSharpWarnings::CS8965


resharper_c_sharp_warnings_cs8965_highlighting

Warning

The CallerArgumentExpressionAttribute is applied with an invalid parameter name.


CSharpWarnings::CS8963


resharper_c_sharp_warnings_cs8963_highlighting

Warning

The CallerArgumentExpressionAttribute will have no effect because it applies to a member that is used in contexts that do not allow optional arguments


CSharpWarnings::CS8966


resharper_c_sharp_warnings_cs8966_highlighting

Warning

The CallerArgumentExpressionAttribute will have no effect; it is overridden by the CallerFilePathAttribute


CSharpWarnings::CS8961


resharper_c_sharp_warnings_cs8961_highlighting

Warning

The CallerArgumentExpressionAttribute will have no effect; it is overridden by the CallerLineNumberAttribute


CSharpWarnings::CS8960


resharper_c_sharp_warnings_cs8960_highlighting

Warning

The CallerArgumentExpressionAttribute will have no effect; it is overridden by the CallerMemberNameAttribute


CSharpWarnings::CS8962


resharper_c_sharp_warnings_cs8962_highlighting

Warning

The 'EnumeratorCancellation' attribute is only effective on a parameter of type 'CancellationToken' in an async-iterator method returning 'IAsyncEnumerable<>'.


CSharpWarnings::CS8424


resharper_c_sharp_warnings_cs8424_highlighting

Warning

The given expression always matches the provided constant.


CSharpWarnings::CS8417


resharper_c_sharp_warnings_cs8417_highlighting

Warning

The given expression never matches the provided pattern.


CSharpWarnings::CS8416


resharper_c_sharp_warnings_cs8416_highlighting

Warning

The 'l' suffix is easily confused with the digit '1'


CSharpWarnings::CS0078


resharper_c_sharp_warnings_cs0078_highlighting

Warning

The 'Main' method will not be used as an entry point because compilation unit with top-level statements was found.


CSharpWarnings::CS7022


resharper_c_sharp_warnings_cs7022_highlighting

Warning

The result of the expression is always 'true' or 'false' since a value of value type is never equal to 'null'


CSharpWarnings::CS8073


resharper_c_sharp_warnings_cs8073_highlighting

Warning

The switch expression does not handle all possible inputs (it is not exhaustive).


CSharpWarnings::CS8509


resharper_c_sharp_warnings_cs8509_highlighting

Warning

The switch expression does not handle all possible values of its input type (it is not exhaustive). However, a pattern with a 'when' clause might successfully match this value.


CSharpWarnings::CS8846


resharper_c_sharp_warnings_cs8846_highlighting

Warning

The switch expression does not handle some null inputs (it is not exhaustive).


CSharpWarnings::CS8655


resharper_c_sharp_warnings_cs8655_highlighting

Warning

The switch expression does not handle some null inputs (it is not exhaustive). However, a pattern with a 'when' clause might successfully match this value.


CSharpWarnings::CS8847


resharper_c_sharp_warnings_cs8847_highlighting

Warning

The switch expression does not handle some values of its input type (it is not exhaustive) involving an unnamed enum value.


CSharpWarnings::CS8524


resharper_c_sharp_warnings_cs8524_highlighting

Warning

The tuple element name is ignored because a different name or no name is specified by the target type.


CSharpWarnings::CS8123


resharper_c_sharp_warnings_cs8123_highlighting

Warning

The tuple element name is ignored because a different name or no name is specified on the other side of the tuple == or != operator.


CSharpWarnings::CS8383


resharper_c_sharp_warnings_cs8383_highlighting

Warning

Thrown value may be null.


CSharpWarnings::CS8597


resharper_c_sharp_warnings_cs8597_highlighting

Warning

Type is already listed in the interface list with different nullability of reference types.


CSharpWarnings::CS8645


resharper_c_sharp_warnings_cs8645_highlighting

Warning

Type parameter has no matching typeparam tag in the XML comment


CSharpWarnings::CS1712


resharper_c_sharp_warnings_cs1712_highlighting

Warning

Type parameter has the same name as a type parameter from the outer type


CSharpWarnings::CS0693


resharper_c_sharp_warnings_cs0693_highlighting

Warning

Types and aliases should not be named 'record'


CSharpWarnings::CS8860


resharper_c_sharp_warnings_cs8860_highlighting

Warning

Unable to include XML fragment


CSharpWarnings::CS1589


resharper_c_sharp_warnings_cs1589_highlighting

Warning

Unassigned field


UnassignedField.Compiler


resharper_unassigned_field_compiler_highlighting

Warning

Unassigned readonly field


UnassignedReadonlyField.Compiler


resharper_unassigned_readonly_field_compiler_highlighting

Warning

Unboxing a possibly null value.


CSharpWarnings::CS8605


resharper_c_sharp_warnings_cs8605_highlighting

Warning

Unused local variable


UnusedVariable.Compiler


resharper_unused_variable_compiler_highlighting

Warning

Use of obsolete symbol


CSharpWarnings::CS0618


resharper_c_sharp_warnings_cs0618_highlighting

Warning

Use of obsolete symbol (without message)


CSharpWarnings::CS0612


resharper_c_sharp_warnings_cs0612_highlighting

Warning

Using 'is' to test compatibility with 'dynamic' is essentially identical to testing compatibility with 'Object' and will succeed for all non-null values


CSharpWarnings::CS1981


resharper_c_sharp_warnings_cs1981_highlighting

Warning

XML comment has a 'param' tag for 'Parameter', but there is no parameter by that name


CSharpWarnings::CS1572


resharper_c_sharp_warnings_cs1572_highlighting

Warning

XML comment has a 'typeparam' tag for 'TypeParameter', but there is no type parameter by that name


CSharpWarnings::CS1711


resharper_c_sharp_warnings_cs1711_highlighting

Warning

XML comment has cref attribute that refers to a type parameter


CSharpWarnings::CS1723


resharper_c_sharp_warnings_cs1723_highlighting

Warning

XML comment is not placed on a valid language element


CSharpWarnings::CS1587


resharper_c_sharp_warnings_cs1587_highlighting

Warning

Constraints Violations (11 inspections)

This category includes code inspections, mostly with the warning severity level, which detect violations related to symbol attributes, including JetBrains Rider's code annotations, and other similar issues.

Inspection


ID


EditorConfig property

Default severity

Base type is required


RequiredBaseTypesIsNotInherited


resharper_required_base_types_is_not_inherited_highlighting

Warning

BaseTypeRequired attribute supports only classes and interfaces


UnsupportedRequiredBaseType


resharper_unsupported_required_base_type_highlighting

Warning

Compare with '==' types marked by 'CannotApplyEqualityOperatorAttribute'


CannotApplyEqualityOperatorToType


resharper_cannot_apply_equality_operator_to_type_highlighting

Warning

Inconsistent Naming


InconsistentNaming


resharper_inconsistent_naming_highlighting

Warning

Namespace does not correspond to file location


CheckNamespace


resharper_check_namespace_highlighting

Warning

Non-nullable member is not initialized at constructor exit


NotNullMemberIsNotInitialized


resharper_not_null_member_is_not_initialized_highlighting

Warning

Possible 'null' assignment to non-nullable entity


AssignNullToNotNullAttribute


resharper_assign_null_to_not_null_attribute_highlighting

Warning

Possible violation of 'ValueRange'/'NonNegativeValue' attribute


ValueRangeAttributeViolation


resharper_value_range_attribute_violation_highlighting

Warning

Problem in contract annotation definition


ContractAnnotationNotParsed


resharper_contract_annotation_not_parsed_highlighting

Warning

Required base type conflicting another type


RequiredBaseTypesConflict


resharper_required_base_types_conflict_highlighting

Warning

Type specified in '[BaseTypeRequired]' attribute conflicts another type


RequiredBaseTypesDirectConflict


resharper_required_base_types_direct_conflict_highlighting

Warning

Formatting (41 inspections)

Inspections in this category detect code formatting problems.

Inspection


ID


EditorConfig property

Default severity

Incorrect blank lines (blank lines are missing elsewhere)


MissingBlankLines


resharper_missing_blank_lines_highlighting

Disabled

Incorrect blank lines (blank lines are redundant elsewhere)


RedundantBlankLines


resharper_redundant_blank_lines_highlighting

Disabled

Incorrect blank lines (incorrect number of blank lines near braces)


IncorrectBlankLinesNearBraces


resharper_incorrect_blank_lines_near_braces_highlighting

Disabled

Incorrect indent (around child statement)


BadChildStatementIndent


resharper_bad_child_statement_indent_highlighting

Warning

Incorrect indent (around declaration braces)


BadDeclarationBracesIndent


resharper_bad_declaration_braces_indent_highlighting

Disabled

Incorrect indent (around expression braces)


BadExpressionBracesIndent


resharper_bad_expression_braces_indent_highlighting

Disabled

Incorrect indent (around namespace braces)


BadNamespaceBracesIndent


resharper_bad_namespace_braces_indent_highlighting

Disabled

Incorrect indent (around preprocessor directive)


BadPreprocessorIndent


resharper_bad_preprocessor_indent_highlighting

Disabled

Incorrect indent (around statement braces)


BadControlBracesIndent


resharper_bad_control_braces_indent_highlighting

Suggestion

Incorrect indent (around switch statement)


BadSwitchBracesIndent


resharper_bad_switch_braces_indent_highlighting

Disabled

Incorrect indent (incorrect indent size)


WrongIndentSize


resharper_wrong_indent_size_highlighting

Disabled

Incorrect indent (line indent should be restored to the previous level elsewhere)


OutdentIsOffPrevLevel


resharper_outdent_is_off_prev_level_highlighting

Disabled

Incorrect indent (line indent should not be changed relative to the previous line elsewhere)


BadIndent


resharper_bad_indent_highlighting

Disabled

Incorrect indent (line should be indented or outdented elsewhere)


MissingIndent


resharper_missing_indent_highlighting

Disabled

Incorrect indent (tabs/spaces mismatch)


TabsAndSpacesMismatch


resharper_tabs_and_spaces_mismatch_highlighting

Disabled

Incorrect line breaks (around comma in lists)


BadListLineBreaks


resharper_bad_list_line_breaks_highlighting

Disabled

Incorrect line breaks (around declaration braces)


BadDeclarationBracesLineBreaks


resharper_bad_declaration_braces_line_breaks_highlighting

Disabled

Incorrect line breaks (around empty braces)


BadEmptyBracesLineBreaks


resharper_bad_empty_braces_line_breaks_highlighting

Disabled

Incorrect line breaks (around expression braces)


BadExpressionBracesLineBreaks


resharper_bad_expression_braces_line_breaks_highlighting

Disabled

Incorrect line breaks (around LINQ queries)


BadLinqLineBreaks


resharper_bad_linq_line_breaks_highlighting

Disabled

Incorrect line breaks (around parenthesis)


BadParensLineBreaks


resharper_bad_parens_line_breaks_highlighting

Disabled

Incorrect line breaks (around statement braces)


BadControlBracesLineBreaks


resharper_bad_control_braces_line_breaks_highlighting

Disabled

Incorrect line breaks (line break is missing elsewhere)


MissingLinebreak


resharper_missing_linebreak_highlighting

Disabled

Incorrect line breaks (line break is redundant elsewhere)


RedundantLinebreak


resharper_redundant_linebreak_highlighting

Disabled

Incorrect line breaks (multiple statements on one line)


MultipleStatementsOnOneLine


resharper_multiple_statements_on_one_line_highlighting

Disabled

Incorrect line breaks (multiple type members on one line)


MultipleTypeMembersOnOneLine


resharper_multiple_type_members_on_one_line_highlighting

Disabled

Incorrect spacing (around attributes)


BadAttributeBracketsSpaces


resharper_bad_attribute_brackets_spaces_highlighting

Disabled

Incorrect spacing (around braces)


BadBracesSpaces


resharper_bad_braces_spaces_highlighting

Disabled

Incorrect spacing (around colon)


BadColonSpaces


resharper_bad_colon_spaces_highlighting

Disabled

Incorrect spacing (around comma)


BadCommaSpaces


resharper_bad_comma_spaces_highlighting

Disabled

Incorrect spacing (around generic brackets)


BadGenericBracketsSpaces


resharper_bad_generic_brackets_spaces_highlighting

Disabled

Incorrect spacing (around member access symbols)


BadMemberAccessSpaces


resharper_bad_member_access_spaces_highlighting

Disabled

Incorrect spacing (around operator symbols)


BadSymbolSpaces


resharper_bad_symbol_spaces_highlighting

Disabled

Incorrect spacing (around parenthesis)


BadParensSpaces


resharper_bad_parens_spaces_highlighting

Disabled

Incorrect spacing (around semicolon)


BadSemicolonSpaces


resharper_bad_semicolon_spaces_highlighting

Disabled

Incorrect spacing (around square brackets within a statement)


BadSquareBracketsSpaces


resharper_bad_square_brackets_spaces_highlighting

Disabled

Incorrect spacing (between keyword and parenthesis)


BadSpacesAfterKeyword


resharper_bad_spaces_after_keyword_highlighting

Disabled

Incorrect spacing (multiple spaces are prohibited)


MultipleSpaces


resharper_multiple_spaces_highlighting

Disabled

Incorrect spacing (space is missing elsewhere)


MissingSpace


resharper_missing_space_highlighting

Disabled

Incorrect spacing (space is redundant elsewhere)


RedundantSpace


resharper_redundant_space_highlighting

Disabled

Incorrect spacing (tabs are prohibited here)


TabsOutsideIndent


resharper_tabs_outside_indent_highlighting

Disabled

Language Usage Opportunities (76 inspections)

This category includes code inspections, mostly with the suggestion severity level, which notify you when more advanced language constructs can be used. These inspections detect syntax of outdated language versions and suggest using features from more modern language versions. For most of the supported languages, language version can be detected automatically or set manually.

Inspection


ID


EditorConfig property

Default severity

Class cannot be instantiated


ClassCannotBeInstantiated


resharper_class_cannot_be_instantiated_highlighting

Warning

Conditional expression can be rewritten as null-coalescing


ReplaceConditionalExpressionWithNullCoalescing


resharper_replace_conditional_expression_with_null_coalescing_highlighting

Suggestion

Convert 'as' expression type check and the following null check into negated pattern matching


UseNegatedPatternMatching


resharper_use_negated_pattern_matching_highlighting

Hint

Convert 'as' expression type check and the following null check into pattern matching


UsePatternMatching


resharper_use_pattern_matching_highlighting

Suggestion

Convert delegate variable to local function


ConvertToLocalFunction


resharper_convert_to_local_function_highlighting

Suggestion

Convert 'if' statement to 'switch' expression


ConvertIfStatementToSwitchExpression


resharper_convert_if_statement_to_switch_expression_highlighting

Hint

Convert 'if' statement to 'switch' statement


ConvertIfStatementToSwitchStatement


resharper_convert_if_statement_to_switch_statement_highlighting

Hint

Convert lambda expression to method group


ConvertClosureToMethodGroup


resharper_convert_closure_to_method_group_highlighting

Suggestion

Convert negated 'is' expression to 'is' expression with negated pattern


UseNegatedPatternInIsExpression


resharper_use_negated_pattern_in_is_expression_highlighting

Hint

Convert 'Nullable<T>' to 'T?'


ConvertNullableToShortForm


resharper_convert_nullable_to_short_form_highlighting

Suggestion

Convert property to auto-property


ConvertToAutoProperty


resharper_convert_to_auto_property_highlighting

Suggestion

Convert property to auto-property (when possible)


ConvertToAutoPropertyWhenPossible


resharper_convert_to_auto_property_when_possible_highlighting

Hint

Convert property to auto-property with private setter


ConvertToAutoPropertyWithPrivateSetter


resharper_convert_to_auto_property_with_private_setter_highlighting

Hint

Convert record constructor to primary constructor


ConvertToPrimaryConstructor


resharper_convert_to_primary_constructor_highlighting

Suggestion

Convert static method invocation to extension method call


InvokeAsExtensionMethod


resharper_invoke_as_extension_method_highlighting

Suggestion

Convert to 'await using' statement or declaration


UseAwaitUsing


resharper_use_await_using_highlighting

Suggestion

Convert to lambda expression


ConvertToLambdaExpression


resharper_convert_to_lambda_expression_highlighting

Suggestion

Convert to lambda expression (when possible)


ConvertToLambdaExpressionWhenPossible


resharper_convert_to_lambda_expression_when_possible_highlighting

Disabled

Convert to static class


ConvertToStaticClass


resharper_convert_to_static_class_highlighting

Suggestion

Convert to 'using' declaration


ConvertToUsingDeclaration


resharper_convert_to_using_declaration_highlighting

Suggestion

Foreach loop can be converted into LINQ-expression but another 'GetEnumerator' method will be used


ForeachCanBeConvertedToQueryUsingAnotherGetEnumerator


resharper_foreach_can_be_converted_to_query_using_another_get_enumerator_highlighting

Hint

For-loop can be converted into foreach-loop


ForCanBeConvertedToForeach


resharper_for_can_be_converted_to_foreach_highlighting

Suggestion

'if' statement can be re-written as '?:' expression


ConvertIfStatementToConditionalTernaryExpression


resharper_convert_if_statement_to_conditional_ternary_expression_highlighting

Suggestion

'if' statement can be re-written as '??' expression


ConvertIfStatementToNullCoalescingExpression


resharper_convert_if_statement_to_null_coalescing_expression_highlighting

Suggestion

'if' statement can be re-written as '??=' assignment


ConvertIfStatementToNullCoalescingAssignment


resharper_convert_if_statement_to_null_coalescing_assignment_highlighting

Suggestion

'if-return' statement can be re-written as 'return' statement


ConvertIfStatementToReturnStatement


resharper_convert_if_statement_to_return_statement_highlighting

Hint

Inline 'out' variable declaration


InlineOutVariableDeclaration


resharper_inline_out_variable_declaration_highlighting

Suggestion

Inline temporary variable


InlineTemporaryVariable


resharper_inline_temporary_variable_highlighting

Hint

Introduce optional parameters (non-private accessibility)


IntroduceOptionalParameters.Global


resharper_introduce_optional_parameters_global_highlighting

Suggestion

Introduce optional parameters (private accessibility)


IntroduceOptionalParameters.Local


resharper_introduce_optional_parameters_local_highlighting

Suggestion

Invert 'if' statement to reduce nesting


InvertIf


resharper_invert_if_highlighting

Hint

Join null check with assignment


JoinNullCheckWithUsage


resharper_join_null_check_with_usage_highlighting

Suggestion

Join null check with assignment (when possible)


JoinNullCheckWithUsageWhenPossible


resharper_join_null_check_with_usage_when_possible_highlighting

Disabled

Lambda expression/anonymous method can be made 'static'


LambdaExpressionCanBeMadeStatic


resharper_lambda_expression_can_be_made_static_highlighting

Disabled

Lambda expression/anonymous method must be 'static' to avoid allocations


LambdaExpressionMustBeStatic


resharper_lambda_expression_must_be_static_highlighting

Suggestion

Lambda expression/anonymous method should not have captures of the containing context


LambdaShouldNotCaptureContext


resharper_lambda_should_not_capture_context_highlighting

Warning

Loop can be converted into LINQ-expression


LoopCanBeConvertedToQuery


resharper_loop_can_be_converted_to_query_highlighting

Hint

Merge 'and' pattern


MergeAndPattern


resharper_merge_and_pattern_highlighting

Suggestion

Merge conditional ?: expression into conditional access


MergeConditionalExpression


resharper_merge_conditional_expression_highlighting

Suggestion

Merge conditional ?: expression into conditional access (when possible)


MergeConditionalExpressionWhenPossible


resharper_merge_conditional_expression_when_possible_highlighting

Disabled

Merge negated null/pattern checks into complex pattern


MergeIntoNegatedPattern


resharper_merge_into_negated_pattern_highlighting

Hint

Merge nested property patterns


MergeNestedPropertyPatterns


resharper_merge_nested_property_patterns_highlighting

Suggestion

Merge null/pattern checks into complex pattern


MergeIntoPattern


resharper_merge_into_pattern_highlighting

Suggestion

Merge null/pattern/value checks into 'or'/'and' patterns


MergeIntoLogicalPattern


resharper_merge_into_logical_pattern_highlighting

Hint

Merge sequential checks into single conditional access check


MergeSequentialChecks


resharper_merge_sequential_checks_highlighting

Hint

Merge sequential checks into single conditional access check (when possible)


MergeSequentialChecksWhenPossible


resharper_merge_sequential_checks_when_possible_highlighting

Disabled

Move to existing positional deconstruction pattern


MoveToExistingPositionalDeconstructionPattern


resharper_move_to_existing_positional_deconstruction_pattern_highlighting

Hint

Move variable declaration inside loop condition


MoveVariableDeclarationInsideLoopCondition


resharper_move_variable_declaration_inside_loop_condition_highlighting

Suggestion

Part of foreach loop can be converted into LINQ-expression but another 'GetEnumerator' method will be used


ForeachCanBePartlyConvertedToQueryUsingAnotherGetEnumerator


resharper_foreach_can_be_partly_converted_to_query_using_another_get_enumerator_highlighting

Hint

Part of loop's body can be converted into LINQ-expression


LoopCanBePartlyConvertedToQuery


resharper_loop_can_be_partly_converted_to_query_highlighting

Disabled

Pass string interpolation expression


PassStringInterpolation


resharper_pass_string_interpolation_highlighting

Hint

Replace auto-property with computed property


ReplaceAutoPropertyWithComputedProperty


resharper_replace_auto_property_with_computed_property_highlighting

Hint

Replace if statement with null-propagating code


UseNullPropagation


resharper_use_null_propagation_highlighting

Hint

Replace if statement with null-propagating code (when possible)


UseNullPropagationWhenPossible


resharper_use_null_propagation_when_possible_highlighting

Disabled

Replace object pattern not performing any additional checks with 'var' pattern


ReplaceObjectPatternWithVarPattern


resharper_replace_object_pattern_with_var_pattern_highlighting

Suggestion

Replace 'Slice' with range indexer


ReplaceSliceWithRangeIndexer


resharper_replace_slice_with_range_indexer_highlighting

Hint

Replace 'Substring' with range indexer


ReplaceSubstringWithRangeIndexer


resharper_replace_substring_with_range_indexer_highlighting

Hint

Replace 'switch' statement with 'switch' expression


ConvertSwitchStatementToSwitchExpression


resharper_convert_switch_statement_to_switch_expression_highlighting

Hint

Replace ternary expression with 'switch' expression


ConvertConditionalTernaryExpressionToSwitchExpression


resharper_convert_conditional_ternary_expression_to_switch_expression_highlighting

Hint

Use compound assignment


ConvertToCompoundAssignment


resharper_convert_to_compound_assignment_highlighting

Hint

Use compound assignment


ConvertToNullCoalescingCompoundAssignment


resharper_convert_to_null_coalescing_compound_assignment_highlighting

Suggestion

Use deconstruction


UseDeconstruction


resharper_use_deconstruction_highlighting

Hint

Use deconstruction to swap variables


SwapViaDeconstruction


resharper_swap_via_deconstruction_highlighting

Suggestion

Use index from end expression


UseIndexFromEndExpression


resharper_use_index_from_end_expression_highlighting

Suggestion

Use 'nameof' expression to reference name


UseNameofExpression


resharper_use_nameof_expression_highlighting

Suggestion

Use 'nameof' expression to reference name in part of the string literal


UseNameofExpressionForPartOfTheString


resharper_use_nameof_expression_for_part_of_the_string_highlighting

Disabled

Use 'nameof' expression to reference type's name


UseNameOfInsteadOfTypeOf


resharper_use_name_of_instead_of_type_of_highlighting

Suggestion

Use object or collection initializer when possible


UseObjectOrCollectionInitializer


resharper_use_object_or_collection_initializer_highlighting

Suggestion

Use positional deconstruction pattern


UsePositionalDeconstructionPattern


resharper_use_positional_deconstruction_pattern_highlighting

Disabled

Use string interpolation expression


UseStringInterpolation


resharper_use_string_interpolation_highlighting

Suggestion

Use string interpolation expression when possible


UseStringInterpolationWhenPossible


resharper_use_string_interpolation_when_possible_highlighting

Hint

Use type annotation syntax


UseNullableReferenceTypesAnnotationSyntax


resharper_use_nullable_reference_types_annotation_syntax_highlighting

Warning

Use 'with' expression to copy anonymous object


UseWithExpressionToCopyAnonymousObject


resharper_use_with_expression_to_copy_anonymous_object_highlighting

Suggestion

Use 'with' expression to copy record


UseWithExpressionToCopyRecord


resharper_use_with_expression_to_copy_record_highlighting

Suggestion

Use 'with' expression to copy struct


UseWithExpressionToCopyStruct


resharper_use_with_expression_to_copy_struct_highlighting

Suggestion

Use 'with' expression to copy tuple


UseWithExpressionToCopyTuple


resharper_use_with_expression_to_copy_tuple_highlighting

Suggestion

NUnit (30 inspections)

These inspections detect code issues related to NUnit tests.

Inspection


ID


EditorConfig property

Default severity

NUnit. Async test method must return Task or Task<T>


NUnit.AsyncMethodMustBeTask


resharper_n_unit_async_method_must_be_task_highlighting

Warning

NUnit. Cannot resolve symbol in TestCaseSource or ValueSource attribute


NUnit.TestCaseSourceCannotBeResolved


resharper_n_unit_test_case_source_cannot_be_resolved_highlighting

Warning

NUnit. Duplicate values


NUnit.DuplicateValues


resharper_n_unit_duplicate_values_highlighting

Warning

NUnit. Ignored parameter attribute


NUnit.IgnoredParameterAttribute


resharper_n_unit_ignored_parameter_attribute_highlighting

Warning

NUnit. Implicitly unspecified null values


NUnit.ImplicitUnspecifiedNullValues


resharper_n_unit_implicit_unspecified_null_values_highlighting

Warning

NUnit. Incompatible argument type or incorrect argument value


NUnit.IncorrectArgumentType


resharper_n_unit_incorrect_argument_type_highlighting

Warning

NUnit. Incompatible expected result type or incorrect value


NUnit.IncorrectExpectedResultType


resharper_n_unit_incorrect_expected_result_type_highlighting

Warning

NUnit. Incorrect range bounds. 'to' must be greater than or equal to 'from'


NUnit.IncorrectRangeBounds


resharper_n_unit_incorrect_range_bounds_highlighting

Warning

NUnit. Mismatch of the range step sign


NUnit.RangeStepSignMismatch


resharper_n_unit_range_step_sign_mismatch_highlighting

Warning

NUnit. Missing arguments in TestCase attribute


NUnit.MissingArgumentsInTestCaseAttribute


resharper_n_unit_missing_arguments_in_test_case_attribute_highlighting

Warning

NUnit. Missing expected result for non-void test method


NUnit.TestCaseAttributeRequiresExpectedResult


resharper_n_unit_test_case_attribute_requires_expected_result_highlighting

Warning

NUnit. No values provided in the attributes


NUnit.NoValuesProvided


resharper_n_unit_no_values_provided_highlighting

Warning

NUnit. Non-public test method


NUnit.NonPublicMethodWithTestAttribute


resharper_n_unit_non_public_method_with_test_attribute_highlighting

Warning

NUnit. Range 'step' parameter value must be non-zero


NUnit.RangeStepValueMustNotBeZero


resharper_n_unit_range_step_value_must_not_be_zero_highlighting

Warning

NUnit. Redundant argument in TestCase attribute


NUnit.RedundantArgumentInTestCaseAttribute


resharper_n_unit_redundant_argument_in_test_case_attribute_highlighting

Warning

NUnit. Redundant argument instead of ExpectedResult


NUnit.RedundantArgumentInsteadOfExpectedResult


resharper_n_unit_redundant_argument_instead_of_expected_result_highlighting

Warning

NUnit. Redundant expected result for void test method


NUnit.RedundantExpectedResultInTestCaseAttribute


resharper_n_unit_redundant_expected_result_in_test_case_attribute_highlighting

Warning

NUnit. Specified attribute values produce too many tests


NUnit.AttributeProducesTooManyTests


resharper_n_unit_attribute_produces_too_many_tests_highlighting

Disabled

NUnit. Specified values are not compatible with the test parameter type


NUnit.ParameterTypeIsNotCompatibleWithAttribute


resharper_n_unit_parameter_type_is_not_compatible_with_attribute_highlighting

Warning

NUnit. Test case Result property duplicates ExpectedResult


NUnit.TestCaseResultPropertyDuplicatesExpectedResult


resharper_n_unit_test_case_result_property_duplicates_expected_result_highlighting

Warning

NUnit. Test case Result property is obsolete


NUnit.TestCaseResultPropertyIsObsolete


resharper_n_unit_test_case_result_property_is_obsolete_highlighting

Warning

NUnit. Test case source must be field, property, or method


NUnit.TestCaseSourceMustBeFieldPropertyMethod


resharper_n_unit_test_case_source_must_be_field_property_method_highlighting

Warning

NUnit. Test case source must be non-abstract and implement IEnumerable


NUnit.TestCaseSourceShouldImplementIEnumerable


resharper_n_unit_test_case_source_should_implement_i_enumerable_highlighting

Warning

NUnit. Test case source must be static


NUnit.TestCaseSourceMustBeStatic


resharper_n_unit_test_case_source_must_be_static_highlighting

Warning

NUnit. The maximum range value is not reachable with the step value


NUnit.RangeToValueIsNotReachable


resharper_n_unit_range_to_value_is_not_reachable_highlighting

Warning

NUnit. Values for test method parameters are not provided


NUnit.MethodWithParametersAndTestAttribute


resharper_n_unit_method_with_parameters_and_test_attribute_highlighting

Warning

NUnit. Values in range do not fit the type of the test parameter


NUnit.RangeAttributeBoundsAreOutOfRange


resharper_n_unit_range_attribute_bounds_are_out_of_range_highlighting

Warning

NUnit.AutoFixture. Incompatible argument type or incorrect argument value


NUnit.AutoFixture.IncorrectArgumentType


resharper_n_unit_auto_fixture_incorrect_argument_type_highlighting

Warning

NUnit.AutoFixture. Missed Test or TestFixture attribute


NUnit.AutoFixture.MissedTestOrTestFixtureAttribute


resharper_n_unit_auto_fixture_missed_test_or_test_fixture_attribute_highlighting

Warning

NUnit.AutoFixture. Redundant argument in InlineAutoData attribute


NUnit.AutoFixture.RedundantArgumentInInlineAutoDataAttribute


resharper_n_unit_auto_fixture_redundant_argument_in_inline_auto_data_attribute_highlighting

Warning

Potential Code Quality Issues (172 inspections)

This category includes inspections that detect critical issues (code smells), mostly with Error or Warning level. This category also includes inspections that ensure localization assistance.

Inspection


ID


EditorConfig property

Default severity

'?:' expression has identical true and false branches


ConditionalTernaryEqualBranch


resharper_conditional_ternary_equal_branch_highlighting

Warning

[ThreadStatic] doesn't work with instance fields


ThreadStaticAtInstanceField


resharper_thread_static_at_instance_field_highlighting

Warning

A suppressed nullable warning might hide an underlying problem.


NullableWarningSuppressionIsUsed


resharper_nullable_warning_suppression_is_used_highlighting

Disabled

Abstract or virtual (overridable) event is never invoked


EventNeverInvoked.Global


resharper_event_never_invoked_global_highlighting

Suggestion

Access to disposed captured variable


AccessToDisposedClosure


resharper_access_to_disposed_closure_highlighting

Warning

Access to foreach variable in closure


AccessToForEachVariableInClosure


resharper_access_to_for_each_variable_in_closure_highlighting

Warning

Access to modified captured variable


AccessToModifiedClosure


resharper_access_to_modified_closure_highlighting

Warning

According to values of the bit masks, expression result will always be the same.


NonConstantEqualityExpressionHasConstantResult


resharper_non_constant_equality_expression_has_constant_result_highlighting

Warning

Actual shift count equals zero.


ShiftExpressionRealShiftCountIsZero


resharper_shift_expression_real_shift_count_is_zero_highlighting

Warning

Ambiguous symbols in text argument


MultipleResolveCandidatesInText


resharper_multiple_resolve_candidates_in_text_highlighting

Warning

Annotation conflict in hierarchy


AnnotationConflictInHierarchy


resharper_annotation_conflict_in_hierarchy_highlighting

Warning

Assignment in conditional expression


AssignmentInConditionalExpression


resharper_assignment_in_conditional_expression_highlighting

Warning

Async iterator invocation without 'await foreach'


AsyncIteratorInvocationWithoutAwaitForeach


resharper_async_iterator_invocation_without_await_foreach_highlighting

Warning

Auto-property accessor is never used (non-private accessibility)


UnusedAutoPropertyAccessor.Global


resharper_unused_auto_property_accessor_global_highlighting

Warning

Auto-property accessor is never used (private accessibility)


UnusedAutoPropertyAccessor.Local


resharper_unused_auto_property_accessor_local_highlighting

Warning

Avoid using 'async' lambda when delegate type returns 'void'


AsyncVoidLambda


resharper_async_void_lambda_highlighting

Warning

Avoid using 'async' methods with the 'void' return type


AsyncVoidMethod


resharper_async_void_method_highlighting

Disabled

Bitwise operation on enum which is not marked by [Flags] attribute


BitwiseOperatorOnEnumWithoutFlags


resharper_bitwise_operator_on_enum_without_flags_highlighting

Warning

Call to base member with implicit default parameters


BaseMethodCallWithDefaultParameter


resharper_base_method_call_with_default_parameter_highlighting

Warning

Call to 'base.Equals(...)' is reference equality


BaseObjectEqualsIsObjectEquals


resharper_base_object_equals_is_object_equals_highlighting

Warning

Cannot access static symbol in text argument


StaticProblemInText


resharper_static_problem_in_text_highlighting

Warning

Cannot access symbol in text argument


AccessRightsInText


resharper_access_rights_in_text_highlighting

Warning

Cannot resolve property


PropertyNotResolved


resharper_property_not_resolved_highlighting

Error

Cannot resolve resource


ResourceNotResolved


resharper_resource_not_resolved_highlighting

Error

Cannot resolve resource item


ResourceItemNotResolved


resharper_resource_item_not_resolved_highlighting

Error

Cannot resolve symbol in text argument


NotResolvedInText


resharper_not_resolved_in_text_highlighting

Warning

Captured field reference of a marshal-by-reference class may cause a runtime exception


AddressOfMarshalByRefObject


resharper_address_of_marshal_by_ref_object_highlighting

Warning

Captured reference to 'volatile' field will not be treated as 'volatile'


ByRefArgumentIsVolatileField


resharper_by_ref_argument_is_volatile_field_highlighting

Warning

Char is possibly unintentionally used as integer


ConfusingCharAsIntegerInConstructor


resharper_confusing_char_as_integer_in_constructor_highlighting

Warning

Class is never instantiated (non-private accessibility)


ClassNeverInstantiated.Global


resharper_class_never_instantiated_global_highlighting

Suggestion

Class is never instantiated (private accessibility)


ClassNeverInstantiated.Local


resharper_class_never_instantiated_local_highlighting

Suggestion

Collection is never updated (non-private accessibility)


CollectionNeverUpdated.Global


resharper_collection_never_updated_global_highlighting

Warning

Collection is never updated (private accessibility)


CollectionNeverUpdated.Local


resharper_collection_never_updated_local_highlighting

Warning

Collection's content is never queried (non-private accessibility)


CollectionNeverQueried.Global


resharper_collection_never_queried_global_highlighting

Warning

Collection's content is never queried (private accessibility)


CollectionNeverQueried.Local


resharper_collection_never_queried_local_highlighting

Warning

Constant shift expression with non-zero operands results in zero value.


ShiftExpressionResultEqualsZero


resharper_shift_expression_result_equals_zero_highlighting

Warning

Co-variant array conversion


CoVariantArrayConversion


resharper_co_variant_array_conversion_highlighting

Warning

Division by zero in at least one execution path.


IntDivisionByZero


resharper_int_division_by_zero_highlighting

Warning

Do not store SpinLock in readonly field


SpinLockInReadonlyField


resharper_spin_lock_in_readonly_field_highlighting

Warning

Element is localizable


LocalizableElement


resharper_localizable_element_highlighting

Warning

Empty general catch clause


EmptyGeneralCatchClause


resharper_empty_general_catch_clause_highlighting

Warning

Empty 'with' expression is redundant


RedundantWithExpression


resharper_redundant_with_expression_highlighting

Suggestion

'Enumerable.Sum' invocation in explicit unchecked context


EnumerableSumInExplicitUncheckedContext


resharper_enumerable_sum_in_explicit_unchecked_context_highlighting

Warning

Equality comparison of floating point numbers


CompareOfFloatsByEqualityOperator


resharper_compare_of_floats_by_equality_operator_highlighting

Warning

Event is never subscribed to (non-private accessibility)


EventNeverSubscribedTo.Global


resharper_event_never_subscribed_to_global_highlighting

Suggestion

Event is never subscribed to (private accessibility)


EventNeverSubscribedTo.Local


resharper_event_never_subscribed_to_local_highlighting

Suggestion

Event never invoked


EventNeverInvoked


resharper_event_never_invoked_highlighting

Warning

Event unsubscription via anonymous delegate


EventUnsubscriptionViaAnonymousDelegate


resharper_event_unsubscription_via_anonymous_delegate_highlighting

Warning

Exception rethrow possibly intended


PossibleIntendedRethrow


resharper_possible_intended_rethrow_highlighting

Warning

Explicit argument passed to parameter with caller info attribute


ExplicitCallerInfoArgument


resharper_explicit_caller_info_argument_highlighting

Warning

Field hides property with default implementation in interface


FieldHidesInterfacePropertyWithDefaultImplementation


resharper_field_hides_interface_property_with_default_implementation_highlighting

Warning

Formatting is specified, but interpolated string expression is not IFormattable


InterpolatedStringExpressionIsNotIFormattable


resharper_interpolated_string_expression_is_not_i_formattable_highlighting

Warning

Function body is too complex to analyze


FunctionComplexityOverflow


resharper_function_complexity_overflow_highlighting

Disabled

Function is recursive on all execution paths


FunctionRecursiveOnAllPaths


resharper_function_recursive_on_all_paths_highlighting

Warning

Function never returns


FunctionNeverReturns


resharper_function_never_returns_highlighting

Warning

'GC.SuppressFinalize' is invoked for type without destructor


GCSuppressFinalizeForTypeWithoutDestructor


resharper_gc_suppress_finalize_for_type_without_destructor_highlighting

Warning

Heuristically unreachable case due to integer analysis.


UnreachableSwitchCaseDueToIntegerAnalysis


resharper_unreachable_switch_case_due_to_integer_analysis_highlighting

Warning

Heuristically unreachable switch arm due to integer analysis.


UnreachableSwitchArmDueToIntegerAnalysis


resharper_unreachable_switch_arm_due_to_integer_analysis_highlighting

Warning

Inconsistent arguments passed to 'Math.Clamp()' method.


MathClampMinGreaterThanMax


resharper_math_clamp_min_greater_than_max_highlighting

Warning

Inconsistent order of taken locks


InconsistentOrderOfLocks


resharper_inconsistent_order_of_locks_highlighting

Warning

Inconsistent synchronization on field


InconsistentlySynchronizedField


resharper_inconsistently_synchronized_field_highlighting

Warning

Instance of IEnumerator is never disposed


GenericEnumeratorNotDisposed


resharper_generic_enumerator_not_disposed_highlighting

Warning

Interfaces marked as ServiceContract should declare at least one OperationContract


ServiceContractWithoutOperations


resharper_service_contract_without_operations_highlighting

Warning

Invalid XML documentation comment


InvalidXmlDocComment


resharper_invalid_xml_doc_comment_highlighting

Warning

Invocation of polymorphic field-like event


PolymorphicFieldLikeEventInvocation


resharper_polymorphic_field_like_event_invocation_highlighting

Warning

IQueryable is possibly unintentionally used as IEnumerable


PossibleUnintendedQueryableAsEnumerable


resharper_possible_unintended_queryable_as_enumerable_highlighting

Suggestion

Iterator never returns


IteratorNeverReturns


resharper_iterator_never_returns_highlighting

Warning

Local function hides method


LocalFunctionHidesMethod


resharper_local_function_hides_method_highlighting

Warning

Local variable hides member


LocalVariableHidesMember


resharper_local_variable_hides_member_highlighting

Warning

Loop control variable is never changed inside loop


LoopVariableIsNeverChangedInsideLoop


resharper_loop_variable_is_never_changed_inside_loop_highlighting

Warning

Member hides static member from outer class


MemberHidesStaticFromOuterClass


resharper_member_hides_static_from_outer_class_highlighting

Warning

Member initialized value ignored


MemberInitializerValueIgnored


resharper_member_initializer_value_ignored_highlighting

Warning

Method is marked as OperationContract but containing type isn't marked as ServiceContract


OperationContractWithoutServiceContract


resharper_operation_contract_without_service_contract_highlighting

Warning

Method with optional or 'params' parameter is hidden by overload


MethodOverloadWithOptionalParameter


resharper_method_overload_with_optional_parameter_highlighting

Warning

Method with 'params' is invoked while more specific method is available


PossiblyMistakenUseOfParamsMethod


resharper_possibly_mistaken_use_of_params_method_highlighting

Warning

Mismatch of optional parameter value in overridden method


OptionalParameterHierarchyMismatch


resharper_optional_parameter_hierarchy_mismatch_highlighting

Warning

Missing '.ConfigureAwait(false)' for async disposable in library code


UseConfigureAwaitFalseForAsyncDisposable


resharper_use_configure_await_false_for_async_disposable_highlighting

Disabled

Missing '.ConfigureAwait(false)' in library code


UseConfigureAwaitFalse


resharper_use_configure_await_false_highlighting

Suggestion

Multiple sequential 'OrderBy' invocation


MultipleOrderBy


resharper_multiple_order_by_highlighting

Warning

Non-accessed field (non-private accessibility)


NotAccessedField.Global


resharper_not_accessed_field_global_highlighting

Suggestion

Non-accessed field (private accessibility)


NotAccessedField.Local


resharper_not_accessed_field_local_highlighting

Warning

Non-accessed positional property (non-private accessibility)


NotAccessedPositionalProperty.Global


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Warning

Non-accessed positional property (private accessibility)


NotAccessedPositionalProperty.Local


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Warning

Non-public member in implementation class hides default implementation in interface


MemberHidesInterfaceMemberWithDefaultImplementation


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Warning

Non-readonly type member referenced in 'GetHashCode()'


NonReadonlyMemberInGetHashCode


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Warning

Nullable warning suppression operator might be confused with inverted 'is' expression


SuppressNullableWarningExpressionAsInvertedIsExpression


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Warning

'Object.ReferenceEquals' is always false because it is called with value type


ReferenceEqualsWithValueType


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Warning

One way operations must not return values


OneWayOperationContractWithReturnType


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Warning

Operator 'is'/'Type Of ... Is ...' can be used


OperatorIsCanBeUsed


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Warning

Overridden GetHashCode calls base 'Object.GetHashCode()'


BaseObjectGetHashCodeCallInGetHashCode


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Warning

Parameter hides member


ParameterHidesMember


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Warning

Parameter name differs in partial method declaration


PartialMethodParameterNameMismatch


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Warning

Possible ambiguity while accessing member by interface


PossibleInterfaceMemberAmbiguity


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Warning

Possible comparison of value type with 'null'


CompareNonConstrainedGenericWithNull


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Disabled

Possible cyclic constructor call


ConstructorInitializerLoop


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Warning

Possible incorrect implementation of Double-Check Locking pattern. Possible multiple write access to checked field


PossibleMultipleWriteAccessInDoubleCheckLocking


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Warning

Possible incorrect implementation of Double-Check Locking pattern. Read access to checked field


ReadAccessInDoubleCheckLocking


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Warning

Possible infinite inheritance


PossibleInfiniteInheritance


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Warning

Possible loss of fraction


PossibleLossOfFraction


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Warning

Possible multiple enumeration


PossibleMultipleEnumeration


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Warning

Possible overflow in checked context.


IntVariableOverflowInCheckedContext


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Warning

Possible overflow in unchecked context.


IntVariableOverflowInUncheckedContext


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Warning

Possible overflow.


IntVariableOverflow


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Warning

Possible 'System.ArgumentOutOfRangeException'. Index must be a non-negative integer


NegativeIndex


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Warning

Possible 'System.ArgumentOutOfRangeException'. Start index should be less than or equal to end index


IndexingByInvalidRange


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Warning

Possible 'System.InvalidCastException'


PossibleInvalidCastException


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Warning

Possible 'System.InvalidCastException' in foreach loop


PossibleInvalidCastExceptionInForeachLoop


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Warning

Possible 'System.InvalidOperationException'


PossibleInvalidOperationException


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Warning

Possible 'System.NullReferenceException'


PossibleNullReferenceException


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Warning

Possible unassigned object created by 'new' expression


ObjectCreationAsStatement


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Warning

Possible unintended reference comparison


PossibleUnintendedReferenceComparison


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Warning

Possibly impure struct method is called on readonly variable: struct value always copied before invocation


PossiblyImpureMethodCallOnReadonlyVariable


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Warning

Possibly misleading 'DefaultValueAttribute' usage to define optional parameter value


DefaultValueAttributeForOptionalParameter


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Warning

Possibly missing comma before indexer initializer


PossiblyMissingIndexerInitializerComma


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Warning

Possibly unintended linear search in set


PossibleUnintendedLinearSearchInSet


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Warning

Possibly unintended string interpolation instead of format string template.


PossiblyMistakenUseOfInterpolatedStringInsert


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Warning

'ref' or 'out' parameter with [Optional] attribute


OptionalParameterRefOut


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Warning

Return type of a function can be non-nullable


ReturnTypeCanBeNotNullable


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Warning

Return value of [MustUseReturnValue] annotated method is not used


MustUseReturnValue


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Warning

Return value of iterator is not used


IteratorMethodResultIsIgnored


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Warning

Return value of pure method is not used


ReturnValueOfPureMethodIsNotUsed


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Warning

Right operand of dynamic shift operation should be convertible to 'int'


DynamicShiftRightOpIsNotInt


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Warning

Safe cast expression always succeeds


TryCastAlwaysSucceeds


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Suggestion

Shift expression with zero left operand equals zero.


ShiftExpressionZeroLeftOperand


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Warning

Similar anonymous type detected nearby


SimilarAnonymousTypeNearby


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Hint

Similar expressions comparison


EqualExpressionComparison


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Warning

Some values of the enum are not processed inside 'switch' expression and are handled via exception in default arm


SwitchExpressionHandlesSomeKnownEnumValuesWithExceptionInDefault


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Hint

Some values of the enum are not processed inside 'switch' statement


SwitchStatementMissingSomeEnumCasesNoDefault


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Hint

Some values of the enum are not processed inside 'switch' statement and are handled via default section


SwitchStatementHandlesSomeKnownEnumValuesWithDefault


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Hint

Static field or auto-property in generic type


StaticMemberInGenericType


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Warning

Static member initializer refers to static member below or in other part


StaticMemberInitializerReferesToMemberBelow


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Warning

String formatting method problems


FormatStringProblem


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Warning

Structured message template problems


StructuredMessageTemplateProblem


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Warning

Suspicious locking over synchronization primitive


SuspiciousLockOverSynchronizationPrimitive


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Warning

Suspicious parameter name in ArgumentNullException


SuspiciousParameterNameInArgumentNullException


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Warning

Suspicious shift count for this type of left operand.


ShiftExpressionRightOperandNotEqualRealCount


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Warning

Suspicious type conversion or check


SuspiciousTypeConversion.Global


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Warning

Suspicious 'volatile' field usage: compound operation is not atomic. 'Interlocked' class can be used instead


NonAtomicCompoundOperator


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Warning

Symbol from module that might be missing at runtime


SymbolFromNotCopiedLocallyReferenceUsedWarning


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Warning

Tail recursive call can be replaced with loop


TailRecursiveCall


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Hint

The given expression of 'is' operator is always of the provided type


IsExpressionAlwaysTrue


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Warning

The given expression of 'is' operator is never of the provided type


IsExpressionAlwaysFalse


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Warning

The source expression always matches the provided pattern


PatternAlwaysMatches


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Warning

The source expression never matches the provided pattern


PatternNeverMatches


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Warning

Thread static field has initializer


ThreadStaticFieldHasInitializer


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Warning

Try cast and check for null can be replaced with a type check


SafeCastIsUsedAsTypeCheck


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Suggestion

Type check and casts can be merged


MergeCastWithTypeCheck


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Suggestion

Type pattern and casts can be merged


UseSwitchCasePatternVariable


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Suggestion

Unassigned field (non-private accessibility)


UnassignedField.Global


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Suggestion

Unassigned field (private accessibility)


UnassignedField.Local


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Warning

Unassigned readonly field


UnassignedReadonlyField


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Warning

Unknown Razor layout


Razor.LayoutNotResolved


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Error

Unknown Razor section


Razor.SectionNotResolved


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Error

Usage of <inheritdoc /> is invalid.


InheritdocInvalidUsage


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Warning

Use <inheritdoc /> on root level to inherit documentation from base candidate.


InheritdocConsiderUsage


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Disabled

Use collection's count property


UseCollectionCountProperty


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Suggestion

Use format specifier in format strings


UseFormatSpecifierInFormatString


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Suggestion

Use format specifier in interpolated strings


SimplifyStringInterpolation


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Suggestion

Use null check instead of a type check succeeding on any not-null value.


ConvertTypeCheckToNullCheck


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Warning

Use null check pattern instead of a type check succeeding on any not-null value.


ConvertTypeCheckPatternToNullCheck


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Warning

Use nullable annotation instead of an attribute.


UseNullableAnnotationInsteadOfAttribute


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Suggestion

Useless arithmetical operation.


UselessBinaryOperation


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Warning

Using stackalloc inside loop


StackAllocInsideLoop


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Warning

Value assigned to a property of non-variable qualifier expression can be lost


PossibleStructMemberModificationOfNonVariableStruct


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Warning

'value' parameter is not used


ValueParameterNotUsed


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Warning

Variable can be declared as non-nullable


VariableCanBeNotNullable


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Warning

Variable in local function hides variable from outer scope


VariableHidesOuterVariable


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Warning

Virtual member call in constructor


VirtualMemberCallInConstructor


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Warning

'void' method is annotated by [MustUseReturnValue] attribute


VoidMethodWithMustUseReturnValueAttribute


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Warning

'void' method is annotated by [Pure] attribute


PureAttributeOnVoidMethod


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Warning

'with' expression is used instead of object initializer


WithExpressionInsteadOfInitializer


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Suggestion

'with' expression modifies all accessible instance members


WithExpressionModifiesAllMembers


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Warning

Redundancies in Code (88 inspections)

Code inspections in this category look for redundancies and dead code, which affect code readability and style, and could be safely removed. Some code redundancies cannot be fixed automatically, and quick-fixes for them are performed in the interactive mode, requiring the user input. But the majority of the redundancies can be fixed without user interaction, using either fix in scope or code cleanup.

Inspection


ID


EditorConfig property

Default severity

'??' condition is known to be null or not null


ConstantNullCoalescingCondition


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Warning

'??' condition is never null according to nullable reference types' annotations


NullCoalescingConditionIsAlwaysNotNullAccordingToAPIContract


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Warning

[NotNull] or [CanBeNull] attribute is applied to a type that already has the same annotation from nullable reference types.


RedundantNullnessAttributeWithNullableReferenceTypes


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Warning

Anonymous method signature is not necessary


UnusedAnonymousMethodSignature


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Warning

Array creation can be replaced with array initializer


RedundantArrayCreationExpression


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Hint

Assignment is not used


RedundantAssignment


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Warning

Assignment results are fully discarded


AssignmentIsFullyDiscarded


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Warning

Comparison to integral constant is useless.


UselessComparisonToIntegralConstant


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Warning

Conditional access qualifier expression is known to be null or not null


ConstantConditionalAccessQualifier


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Warning

Conditional access qualifier expression is not null according to nullable reference types' annotations


ConditionalAccessQualifierIsNonNullableAccordingToAPIContract


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Warning

Double negation operator


DoubleNegationOperator


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Suggestion

Empty 'for' loop is redundant


EmptyForStatement


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Warning

Explicit delegate creation expression is redundant


RedundantDelegateCreation


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Warning

Expression is always 'null'


ExpressionIsAlwaysNull


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Warning

Expression is always 'true' or always 'false'


ConditionIsAlwaysTrueOrFalse


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Warning

Expression is always 'true' or 'false' according to nullable reference types' annotations


ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract


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Warning

Heuristically unreachable code


HeuristicUnreachableCode


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Warning

Immediate delegate invocation


RedundantImmediateDelegateInvocation


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Suggestion

Math.Abs() argument is always non-negative


MathAbsMethodIsRedundant


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Warning

Math.Sign() method always gives the same result


SuspiciousMathSignMethod


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Warning

Parentheses are redundant if attribute has no arguments


RedundantAttributeParentheses


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Hint

Pattern is always 'true' or always 'false'


PatternIsAlwaysTrueOrFalse


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Warning

Private field can be converted to local variable


PrivateFieldCanBeConvertedToLocalVariable


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Warning

Redundant [AttributeUsage] attribute property assignment


RedundantAttributeUsageProperty


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Suggestion

Redundant 'abstract' modifier


RedundantAbstractModifier


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Warning

Redundant always match subpattern


RedundantAlwaysMatchSubpattern


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Suggestion

Redundant anonymous type property explicit name


RedundantAnonymousTypePropertyName


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Warning

Redundant argument passed to caller argument expression parameter


RedundantCallerArgumentExpressionDefaultValue


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Warning

Redundant argument with default value


RedundantArgumentDefaultValue


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Warning

Redundant arithmetic overflow checking context


RedundantOverflowCheckingContext


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Warning

Redundant 'Attribute' suffix


RedundantAttributeSuffix


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Warning

Redundant 'base.' qualifier


RedundantBaseQualifier


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Warning

Redundant boolean comparison


RedundantBoolCompare


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Warning

Redundant braces in collection initializer


RedundantCollectionInitializerElementBraces


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Hint

Redundant 'case' label


RedundantCaseLabel


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Warning

Redundant 'case' label before default section


RedundantEnumCaseLabelForDefaultSection


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Disabled

Redundant cast


RedundantCast


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Warning

Redundant catch clause


RedundantCatchClause


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Warning

Redundant 'class' keyword in record declaration


RedundantRecordClassKeyword


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Warning

Redundant condition check before assignments


RedundantCheckBeforeAssignment


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Warning

Redundant conditional ternary expression usage


RedundantTernaryExpression


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Warning

Redundant 'ConfigureAwait(true)'


RedundantConfigureAwait


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Suggestion

Redundant control flow jump statement


RedundantJumpStatement


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Warning

Redundant discard designation


RedundantDiscardDesignation


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Suggestion

Redundant 'else' keyword


RedundantIfElseBlock


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Hint

Redundant empty argument list on object creation expression


RedundantEmptyObjectCreationArgumentList


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Hint

Redundant empty finally block


RedundantEmptyFinallyBlock


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Warning

Redundant empty object or collection initializer


RedundantEmptyObjectOrCollectionInitializer


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Warning

Redundant empty switch section


RedundantEmptySwitchSection


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Warning

Redundant explicit array creation in argument of 'params' parameter


RedundantExplicitParamsArrayCreation


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Suggestion

Redundant explicit nullable type creation


RedundantExplicitNullableCreation


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Warning

Redundant explicit positional property declaration


RedundantExplicitPositionalPropertyDeclaration


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Warning

Redundant explicit size specification in array creation


RedundantExplicitArraySize


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Warning

Redundant explicit tuple component name


RedundantExplicitTupleComponentName


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Warning

Redundant explicit type in array creation


RedundantExplicitArrayCreation


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Warning

Redundant fixed pointer declaration


RedundantFixedPointerDeclaration


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Suggestion

Redundant global using directive


RedundantUsingDirective.Global


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Warning

Redundant 'IEnumerable.Cast<T>' or 'IEnumerable.OfType<T>' call


RedundantEnumerableCastCall


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Warning

Redundant lambda expression parameter type specification


RedundantLambdaParameterType


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Warning

Redundant lambda signature parentheses


RedundantLambdaSignatureParentheses


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Hint

Redundant name qualifier


RedundantNameQualifier


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Warning

Redundant 'notnull' constraint on type parameter constrained by non-nullable base type.


RedundantNotNullConstraint


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Warning

Redundant nullable annotation on base type constraint of type parameter constrained by another non-nullable base type.


RedundantNullableAnnotationOnTypeConstraintHasNonNullableBaseType


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Warning

Redundant nullable annotation on base type constraint of type parameter having non-nullable type kind.


RedundantNullableAnnotationOnTypeConstraintHasNonNullableTypeKind


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Warning

Redundant nullable annotation on 'class?' constraint of type parameter constrained by non-nullable base type.


RedundantNullableAnnotationOnReferenceTypeConstraint


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Warning

Redundant nullable attribute.


RedundantNullableFlowAttribute


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Warning

Redundant 'object.ToString()' call


RedundantToStringCall


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Warning

Redundant 'object.ToString()' call for value types


RedundantToStringCallForValueType


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Hint

Redundant operand in logical conditional expression


RedundantLogicalConditionalExpressionOperand


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Warning

Redundant 'orderby' clause 'ascending' keyword


RedundantQueryOrderByAscendingKeyword


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Hint

Redundant property pattern clause


RedundantPropertyPatternClause


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Suggestion

Redundant range bound


RedundantRangeBound


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Suggestion

Redundant 'readonly' modifier


RedundantReadonlyModifier


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Suggestion

Redundant 'record' type declaration body


RedundantRecordBody


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Warning

Redundant semicolon after type or namespace declaration


RedundantDeclarationSemicolon


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Hint

Redundant string interpolation


RedundantStringInterpolation


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Suggestion

Redundant 'string.Format()' call


RedundantStringFormatCall


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Warning

Redundant 'string.ToCharArray()' call


RedundantStringToCharArrayCall


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Warning

Redundant suppress nullable warnings expression.


RedundantSuppressNullableWarningExpression


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Warning

Redundant type arguments of method


RedundantTypeArgumentsOfMethod


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Warning

Redundant type check in a pattern


RedundantTypeCheckInPattern


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Warning

Redundant using directive


RedundantUsingDirective


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Warning

Redundant verbatim prefix


RedundantVerbatimPrefix


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Suggestion

Redundant verbatim string prefix


RedundantVerbatimStringPrefix


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Suggestion

Remove redundant pattern-matching parentheses


RedundantPatternParentheses


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Hint

'true' is redundant as 'for'-statement condition


ForStatementConditionIsTrue


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Warning

Type check for nullable type is equal to underlying type check


RedundantNullableTypeMark


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Warning

Unsafe context declaration is redundant


RedundantUnsafeContext


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Warning

Redundancies in Symbol Declarations (47 inspections)

This category includes code inspections, mostly with the warning severity level, which detect empty and unused symbol declarations.

Inspection


ID


EditorConfig property

Default severity

Class with virtual (overridable) members never inherited (non-private accessibility)


ClassWithVirtualMembersNeverInherited.Global


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Suggestion

Class with virtual (overridable) members never inherited (private accessibility)


ClassWithVirtualMembersNeverInherited.Local


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Suggestion

Component of the tuple is never used


UnusedTupleComponentInReturnValue


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Warning

'DefaultParameterValueAttribute' should be used in conjunction with 'OptionalAttribute'


MeaninglessDefaultParameterValue


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Warning

Empty constructor


EmptyConstructor


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Warning

Empty destructor


EmptyDestructor


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Warning

Empty namespace declaration


EmptyNamespace


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Warning

Entity is only used to capture its name (non-private accessibility)


EntityNameCapturedOnly.Global


resharper_entity_name_captured_only_global_highlighting

Warning

Entity is only used to capture its name (private accessibility)


EntityNameCapturedOnly.Local


resharper_entity_name_captured_only_local_highlighting

Warning

Local function is never used


UnusedLocalFunction


resharper_unused_local_function_highlighting

Warning

Local function is never used


UnusedLocalFunction.Compiler


resharper_unused_local_function_compiler_highlighting

Warning

Local function return value is never used


UnusedLocalFunctionReturnValue


resharper_unused_local_function_return_value_highlighting

Warning

Method return value is never used (non-private accessibility)


UnusedMethodReturnValue.Global


resharper_unused_method_return_value_global_highlighting

Suggestion

Method return value is never used (private accessibility)


UnusedMethodReturnValue.Local


resharper_unused_method_return_value_local_highlighting

Warning

Non-accessed local variable


NotAccessedVariable


resharper_not_accessed_variable_highlighting

Warning

Parameter is only used for precondition check (non-private accessibility)


ParameterOnlyUsedForPreconditionCheck.Global


resharper_parameter_only_used_for_precondition_check_global_highlighting

Suggestion

Parameter is only used for precondition check (private accessibility)


ParameterOnlyUsedForPreconditionCheck.Local


resharper_parameter_only_used_for_precondition_check_local_highlighting

Warning

Parameter output value is always discarded (non-private accessibility)


OutParameterValueIsAlwaysDiscarded.Global


resharper_out_parameter_value_is_always_discarded_global_highlighting

Suggestion

Parameter output value is always discarded (private accessibility)


OutParameterValueIsAlwaysDiscarded.Local


resharper_out_parameter_value_is_always_discarded_local_highlighting

Warning

'params' modifier is always ignored on overrides


RedundantParams


resharper_redundant_params_highlighting

Warning

Redundant base constructor call


RedundantBaseConstructorCall


resharper_redundant_base_constructor_call_highlighting

Warning

Redundant class or interface specification in base types list


RedundantExtendsListEntry


resharper_redundant_extends_list_entry_highlighting

Warning

Redundant member initializer


RedundantDefaultMemberInitializer


resharper_redundant_default_member_initializer_highlighting

Warning

Redundant member override


RedundantOverriddenMember


resharper_redundant_overridden_member_highlighting

Warning

Redundant method overload (non-private accessibility)


RedundantOverload.Global


resharper_redundant_overload_global_highlighting

Suggestion

Redundant method overload (private accessibility)


RedundantOverload.Local


resharper_redundant_overload_local_highlighting

Suggestion

Redundant 'partial' modifier on method declaration


PartialMethodWithSinglePart


resharper_partial_method_with_single_part_highlighting

Warning

Redundant 'partial' modifier on type declaration


PartialTypeWithSinglePart


resharper_partial_type_with_single_part_highlighting

Warning

Sealed member in sealed class


SealedMemberInSealedClass


resharper_sealed_member_in_sealed_class_highlighting

Warning

Type is never used (non-private accessibility)


UnusedType.Global


resharper_unused_type_global_highlighting

Suggestion

Type is never used (private accessibility)


UnusedType.Local


resharper_unused_type_local_highlighting

Warning

Type member is never accessed via base type (non-private accessibility)


UnusedMemberInSuper.Global


resharper_unused_member_in_super_global_highlighting

Suggestion

Type member is never accessed via base type (private accessibility)


UnusedMemberInSuper.Local


resharper_unused_member_in_super_local_highlighting

Warning

Type member is never used (non-private accessibility)


UnusedMember.Global


resharper_unused_member_global_highlighting

Suggestion

Type member is never used (private accessibility)


UnusedMember.Local


resharper_unused_member_local_highlighting

Warning

Type member is only used in overrides (non-private accessibility)


UnusedMemberHierarchy.Global


resharper_unused_member_hierarchy_global_highlighting

Suggestion

Type member is only used in overrides (private accessibility)


UnusedMemberHierarchy.Local


resharper_unused_member_hierarchy_local_highlighting

Warning

Underlying type of enum is 'int'


EnumUnderlyingTypeIsInt


resharper_enum_underlying_type_is_int_highlighting

Warning

Unused label


UnusedLabel


resharper_unused_label_highlighting

Warning

Unused local variable


UnusedVariable


resharper_unused_variable_highlighting

Warning

Unused parameter (non-private accessibility)


UnusedParameter.Global


resharper_unused_parameter_global_highlighting

Suggestion

Unused parameter (private accessibility)


UnusedParameter.Local


resharper_unused_parameter_local_highlighting

Warning

Unused parameter in partial method


UnusedParameterInPartialMethod


resharper_unused_parameter_in_partial_method_highlighting

Warning

Unused positional parameter


UnusedPositionalParameterCompiler


resharper_unused_positional_parameter_compiler_highlighting

Warning

Unused type parameter


UnusedTypeParameter


resharper_unused_type_parameter_highlighting

Warning

Virtual (overridable) member is never overridden (non-private accessibility)


VirtualMemberNeverOverridden.Global


resharper_virtual_member_never_overridden_global_highlighting

Suggestion

Virtual (overridable) member is never overridden (private accessibility)


VirtualMemberNeverOverridden.Local


resharper_virtual_member_never_overridden_local_highlighting

Suggestion

Spelling issues (3 inspections)

These inspections detect typos in various contexts.

Inspection


ID


EditorConfig property

Default severity

Typo in comment


CommentTypo


resharper_comment_typo_highlighting

Suggestion

Typo in identifier


IdentifierTypo


resharper_identifier_typo_highlighting

Suggestion

Typo in string literal


StringLiteralTypo


resharper_string_literal_typo_highlighting

Suggestion

Syntax Style (44 inspections)

Inspections in this category detect violations of code syntax styles. In contrast to most of other code inspections, these inspections can either detect the same code construct as a code issue or not depending on the corresponding code style rule configured on the Editor | Code Style | [Language] | Syntax Style page of JetBrains Rider settings Ctrl+Alt+S. You can also fix issues that these inspection detect using code cleanup.

Inspection


ID


EditorConfig property

Default severity

Add parentheses to avoid non-obvious precedence


ArrangeMissingParentheses


resharper_arrange_missing_parentheses_highlighting

Disabled

Add/remove qualifier for static members


ArrangeStaticMemberQualifier


resharper_arrange_static_member_qualifier_highlighting

Hint

Add/remove 'this.' qualifier


ArrangeThisQualifier


resharper_arrange_this_qualifier_highlighting

Hint

Adjust modifiers declaration order


ArrangeModifiersOrder


resharper_arrange_modifiers_order_highlighting

Suggestion

Join or separate attributes is section


ArrangeAttributes


resharper_arrange_attributes_highlighting

Disabled

Join or separate 'var' in deconstruction declarations


ArrangeVarKeywordsInDeconstructingDeclaration


resharper_arrange_var_keywords_in_deconstructing_declaration_highlighting

Suggestion

Remove redundant parentheses


ArrangeRedundantParentheses


resharper_arrange_redundant_parentheses_highlighting

Hint

Replace built-in type reference with a CLR type name or a keyword


BuiltInTypeReferenceStyle


resharper_built_in_type_reference_style_highlighting

Hint

Replace built-in type reference with a CLR type name or a keyword in static member access expressions


BuiltInTypeReferenceStyleForMemberAccess


resharper_built_in_type_reference_style_for_member_access_highlighting

Hint

Separate control transfer statement with blank line


SeparateControlTransferStatement


resharper_separate_control_transfer_statement_highlighting

Disabled

Unnecessary whitespace at the end of line


UnnecessaryWhitespace


resharper_unnecessary_whitespace_highlighting

Disabled

Usage of tabulation character for indentation is prohibited


TabsAreDisallowed


resharper_tabs_are_disallowed_highlighting

Disabled

Use explicit or implicit modifier definition for type members


ArrangeTypeMemberModifiers


resharper_arrange_type_member_modifiers_highlighting

Hint

Use explicit or implicit modifier definition for types


ArrangeTypeModifiers


resharper_arrange_type_modifiers_highlighting

Hint

Use preferred argument style


ArgumentsStyleOther


resharper_arguments_style_other_highlighting

Disabled

Use preferred argument style for anonymous functions


ArgumentsStyleAnonymousFunction


resharper_arguments_style_anonymous_function_highlighting

Disabled

Use preferred argument style for literal values


ArgumentsStyleLiteral


resharper_arguments_style_literal_highlighting

Disabled

Use preferred argument style for named expressions


ArgumentsStyleNamedExpression


resharper_arguments_style_named_expression_highlighting

Disabled

Use preferred argument style for string literal values


ArgumentsStyleStringLiteral


resharper_arguments_style_string_literal_highlighting

Disabled

Use preferred body style (convert to constructor or destructor with preferred body style)


ArrangeConstructorOrDestructorBody


resharper_arrange_constructor_or_destructor_body_highlighting

Disabled

Use preferred body style (convert to local function with preferred body style)


ArrangeLocalFunctionBody


resharper_arrange_local_function_body_highlighting

Disabled

Use preferred body style (convert to method or operator with preferred body style)


ArrangeMethodOrOperatorBody


resharper_arrange_method_or_operator_body_highlighting

Disabled

Use preferred body style (convert to property, indexer or event with preferred body style)


ArrangeAccessorOwnerBody


resharper_arrange_accessor_owner_body_highlighting

Suggestion

Use preferred braces style (enforce braces in 'do-while' statement)


EnforceDoWhileStatementBraces


resharper_enforce_do_while_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'fixed' statement)


EnforceFixedStatementBraces


resharper_enforce_fixed_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'for' statement)


EnforceForStatementBraces


resharper_enforce_for_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'foreach' statement)


EnforceForeachStatementBraces


resharper_enforce_foreach_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'if' statement)


EnforceIfStatementBraces


resharper_enforce_if_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'lock' statement)


EnforceLockStatementBraces


resharper_enforce_lock_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'using' statement)


EnforceUsingStatementBraces


resharper_enforce_using_statement_braces_highlighting

Disabled

Use preferred braces style (enforce braces in 'while' statement)


EnforceWhileStatementBraces


resharper_enforce_while_statement_braces_highlighting

Disabled

Use preferred braces style (remove redundant braces)


RemoveRedundantBraces


resharper_remove_redundant_braces_highlighting

Disabled

Use preferred namespace body style


ArrangeNamespaceBody


resharper_arrange_namespace_body_highlighting

Hint

Use preferred style for discard declaration


SuggestDiscardDeclarationVarStyle


resharper_suggest_discard_declaration_var_style_highlighting

Hint

Use preferred style for trailing comma before new line in multiline lists


ArrangeTrailingCommaInMultilineLists


resharper_arrange_trailing_comma_in_multiline_lists_highlighting

Hint

Use preferred style for trailing comma when the last element is not followed by a new line


ArrangeTrailingCommaInSinglelineLists


resharper_arrange_trailing_comma_in_singleline_lists_highlighting

Hint

Use preferred style of default value expression when type is evident


ArrangeDefaultValueWhenTypeEvident


resharper_arrange_default_value_when_type_evident_highlighting

Suggestion

Use preferred style of default value expression when type is not evident


ArrangeDefaultValueWhenTypeNotEvident


resharper_arrange_default_value_when_type_not_evident_highlighting

Hint

Use preferred style of 'new' expression when created type is evident


ArrangeObjectCreationWhenTypeEvident


resharper_arrange_object_creation_when_type_evident_highlighting

Suggestion

Use preferred style of 'new' expression when created type is not evident


ArrangeObjectCreationWhenTypeNotEvident


resharper_arrange_object_creation_when_type_not_evident_highlighting

Hint

Use preferred 'var' style (elsewhere)


SuggestVarOrType_Elsewhere


resharper_suggest_var_or_type_elsewhere_highlighting

Hint

Use preferred 'var' style (for built-in types)


SuggestVarOrType_BuiltInTypes


resharper_suggest_var_or_type_built_in_types_highlighting

Hint

Use preferred 'var' style (in deconstruction declarations)


SuggestVarOrType_DeconstructionDeclarations


resharper_suggest_var_or_type_deconstruction_declarations_highlighting

Hint

Use preferred 'var' style (when type is simple)


SuggestVarOrType_SimpleTypes


resharper_suggest_var_or_type_simple_types_highlighting

Hint

Unreal Build System (2 inspections)

Inspections in this category are specific to Unreal Engine projects.

Inspection


ID


EditorConfig property

Default severity

Dependency for plugin is missing in project file


CSharpMissingPluginDependency


resharper_c_sharp_missing_plugin_dependency_highlighting

Warning

Module with this name does not exist


CSharpBuildCSInvalidModuleName


resharper_c_sharp_build_cs_invalid_module_name_highlighting

Warning

Xunit (1 inspection)

These inspections detect code issues related to xUnit.Net tests.

Inspection


ID


EditorConfig property

Default severity

Console output in Xunit tests


Xunit.XunitTestWithConsoleOutput


resharper_xunit_xunit_test_with_console_output_highlighting

Warning

Last modified: 30 March 2022