JetBrains / resharper-fsharp Conditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 1,297 units with 16,331 lines of code in units (22.7% of code).

1 very complex units (265 lines of code)
3 complex units (125 lines of code)
45 medium complex units (2,166 lines of code)
112 simple units (2,855 lines of code)
1,136 very simple units (10,920 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public class FcsFileCapturedInfo() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Resolve/FcsFileCapturedInfo.cs	265	86	1
public static string GetMfvHighlightingAttributeId() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Features/Daemon/FSharpSymbolHighlightingUtil.cs	35	30	1
public ProvidedTypeCreator() in ReSharper.FSharp/src/FSharp.TypeProviders.Host/FSharp.TypeProviders.Host/src/ModelCreators/ProvidedTypeCreator.cs	47	27	1
private object ReadIlInstruction() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Metadata/FSharpMetadataReader.cs	43	27	0
fun handleEnterAddIndent() in rider-fsharp/src/main/java/com/jetbrains/rider/plugins/fsharp/editorActions/FSharpEnterHandlerDelegate.kt	55	25	2
public static IDeclaredElement GetDeclaredElement() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsSymbolMappingUtil.cs	48	24	3
private static MemberPresenceFlag InvestigateMembers() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/Parts/FSharpClassLikePart.cs	63	24	2
public static IType MapType() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsTypeMappingUtil.cs	62	22	5
public static IList CalculateParameterArguments() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/FSharpArgumentsOwnerUtil.cs	64	22	2
private object ReadOperation() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Metadata/FSharpMetadataReader.cs	75	21	0
public override IType Type() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Tree/LiteralExpr.cs	40	20	0
private void FixPartialSelectionMemberIndentingRule() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/CodeFormatter/FSharpCodeFormatterInfoProvider.cs	70	19	2
private static() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/DeclaredElement/FSharpPropertyBase.cs	39	18	2
public class FSharpClassOrProvidedTypeAbbreviation() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/FSharpClassOrProvidedTypeAbbreviation.cs	33	18	1
private static IDeclaredElement GetFSharpSourceTypeMember() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsSymbolMappingUtil.cs	48	17	2
public static IList GetGeneratedMembers() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/GeneratedMembersUtil.cs	56	17	1
private static TypeParameterConstraintFlags GetTypeConstraintFlags() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/Parts/FSharpTypeParametersOwnerPart.cs	39	17	2
public static ITypeElement GetTypeElement() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsSymbolMappingUtil.cs	47	16	2
private object ReadExpression() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Metadata/FSharpMetadataReader.cs	91	15	0
public static bool IsAccessible() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/FSharpAccessRights.cs	37	15	2
protected ModulePartBase() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/Parts/ModulePartBase.cs	62	15	4
public static string GetEntityHighlightingAttributeId() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Features/Daemon/FSharpSymbolHighlightingUtil.cs	26	14	1
public class FSharpMethodParameter() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/DeclaredElement/FSharpMethodParameter.cs	65	14	2
internal class FSharpTypeParameterOfMethod() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/DeclaredElement/FSharpTypeParameterOfMethod.cs	100	14	3
internal class FSharpCompiledExtensionMemberInfo() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/Compiled/FSharpCompiledExtensionMemberInfo.cs	56	14	2
public override IEnumerable GetRelatedDeclaredElements() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Searching/FSharpSearcherFactory.cs	37	14	1
override fun allowPaste() in rider-fsharp/src/main/java/com/jetbrains/rider/plugins/fsharp/projectView/FSharpMoveProviderExtension.kt	54	13	3
public ProvidedConstructorCreator() in ReSharper.FSharp/src/FSharp.TypeProviders.Host/FSharp.TypeProviders.Host/src/ModelCreators/ProvidedConstructorCreator.cs	27	13	1
public ProvidedMethodCreator() in ReSharper.FSharp/src/FSharp.TypeProviders.Host/FSharp.TypeProviders.Host/src/ModelCreators/ProvidedMethodCreator.cs	29	13	1
private static void AddUsagesRanges() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Features/Daemon/ContextHighlighters/FSharpUsagesContextHighlighter.cs	37	13	5
public static string RemoveBackticks() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FSharpNamesUtil.cs	32	13	1
public static IDeclaredElement GetDeclaredElement() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsSymbolMappingUtil.cs	36	13	2
public FSharpCompiledModule() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Cache2/Compiled/FSharpCompiledModule.cs	53	13	5
public sealed class FSharpSearchFilter() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Searching/FSharpSearchFilter.cs	45	13	1
fun handleEnterAddBiggerIndentFromBelow() in rider-fsharp/src/main/java/com/jetbrains/rider/plugins/fsharp/editorActions/FSharpEnterHandlerDelegate.kt	25	12	2
fun handleBackspaceInTripleQuotedString() in rider-fsharp/src/main/java/com/jetbrains/rider/plugins/fsharp/editorActions/FSharpBackspaceHandlerDelegate.kt	39	12	2
public bool Equals() in ReSharper.FSharp/src/FSharp/FSharp.TypeProviders.Protocol/src/Utils/ProvidedTypesComparer.cs	28	12	2
public class HighlightIdentifiersStageProcess() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Features/Daemon/Stages/HighlightIdentifiersStage.cs	47	12	2
private void DescribeEmptyOnlyFormatting() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/CodeFormatter/FSharpCodeFormatterInfoProvider.cs	95	12	3
private FSharpMetadataType ReadType() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Metadata/FSharpMetadataReader.cs	44	12	0
protected override IDeclaredElement CreateDeclaredElement() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/Tree/TopPatternDeclarationBase.cs	26	12	1
fun doHandleBackspacePressed() in rider-fsharp/src/main/java/com/jetbrains/rider/plugins/fsharp/editorActions/FSharpBackspaceHandlerDelegate.kt	37	11	3
public static void UsingReadLockInsideFcs() in ReSharper.FSharp/src/FSharp/FSharp.ProjectModelBase/src/FSharpAsyncUtil.cs	74	11	2
public abstract class FSharpDaemonStageBase() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Features/Daemon/Stages/FSharpDaemonStageBase.cs	22	11	2
public static IType MapType() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsTypeMappingUtil.cs	45	11	2
public static IList GetParameters() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Util/FcsSymbolMappingUtil.cs	22	11	2
private static bool IsNestedRefOrAppExpr() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/CodeFormatter/FSharpCodeFormatterInfoProvider.cs	12	11	1
private void LocateToken() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Parsing/FSharpPreprocessedLexer.cs	77	11	0
internal abstract class FSharpPropertyBase() in ReSharper.FSharp/src/FSharp/FSharp.Psi/src/Impl/DeclaredElement/FSharpPropertyBase.cs	47	11	1
public ProvidedFieldCreator() in ReSharper.FSharp/src/FSharp.TypeProviders.Host/FSharp.TypeProviders.Host/src/ModelCreators/ProvidedFieldCreator.cs	27	10	1