JetBrains / clazy 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 693 units with 12,384 lines of code in units (62.6% of code).

2 very complex units (384 lines of code)
10 complex units (827 lines of code)
92 medium complex units (3,967 lines of code)
127 simple units (2,862 lines of code)
462 very simple units (4,344 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
void Qt6DeprecatedAPIFixes::VisitStmt() in src/checks/manuallevel/qt6-deprecated-api-fixes.cpp	253	92	1
static std::string normalizeTypeInternal() in src/NormalizedSignatureUtils.h	131	68	4
void RuleOfThree::VisitDecl() in src/checks/level2/rule-of-three.cpp	107	46	1
std::vector OldStyleConnect::fixits() in src/checks/level2/old-style-connect.cpp	157	38	2
void DetachingMember::VisitStmt() in src/checks/manuallevel/detaching-member.cpp	85	37	1
int OldStyleConnect::classifyConnect() in src/checks/level2/old-style-connect.cpp	75	37	2
void QStringAllocations::VisitCtor() in src/checks/level2/qstring-allocations.cpp	110	36	1
void MacroExpands() in src/AccessSpecifierManager.cpp	39	32	4
void FunctionArgsByValue::processFunction() in src/checks/level2/function-args-by-value.cpp	80	31	1
void QVariantTemplateInstantiation::VisitStmt() in src/checks/manuallevel/qvariant-template-instantiation.cpp	57	29	1
void DetachingTemporary::VisitStmt() in src/checks/level1/detaching-temporary.cpp	76	26	1
bool clazy::classifyQualType() in src/TypeUtils.cpp	41	26	5
void TemporaryIterator::VisitStmt() in src/checks/level0/temporary-iterator.cpp	75	25	1
void Qt6QHashSignature::VisitStmt() in src/checks/manuallevel/qt6-qhash-signature.cpp	74	25	1
std::string Qt6QLatin1StringCharToU::buildReplacement() in src/checks/manuallevel/qt6-qlatin1stringchar-to-u.cpp	60	24	5
void AssertWithSideEffects::VisitStmt() in src/checks/manuallevel/assert-with-side-effects.cpp	51	24	1
void ReturningDataFromTemporary::handleMemberCall() in src/checks/level1/returning-data-from-temporary.cpp	53	23	2
void Connect3ArgLambda::VisitStmt() in src/checks/level1/connect-3arg-lambda.cpp	74	23	1
void QPropertyTypeMismatch::VisitMacroExpands() in src/checks/manuallevel/qproperty-type-mismatch.cpp	85	23	3
void UseStaticQRegularExpression::VisitStmt() in src/checks/level0/use-static-qregularexpression.cpp	60	22	1
void QGetEnv::VisitStmt() in src/checks/level0/qgetenv.cpp	66	22	1
static bool isQStringLiteralCandidate() in src/checks/level2/qstring-allocations.cpp	50	22	5
void SanitizeInlineKeyword::VisitDecl() in src/checks/manuallevel/sanitize-inline-keyword.cpp	60	21	1
bool StrictIterators::handleImplicitCast() in src/checks/level0/strict-iterators.cpp	72	20	1
void run() in src/checks/level0/qcolor-from-literal.cpp	58	20	1
void WritingToTemporary::VisitStmt() in src/checks/level0/writing-to-temporary.cpp	50	20	1
void NonPodGlobalStatic::VisitStmt() in src/checks/level1/non-pod-global-static.cpp	47	20	1
void QBytearrayConversionToCStyle::VisitStmt() in src/checks/manuallevel/qbytearray-conversion-to-c-style.cpp	80	20	1
bool clazy::canTakeAddressOf() in src/ContextUtils.cpp	56	19	3
void QPropertyWithoutNotify::VisitMacroExpands() in src/checks/level1/qproperty-without-notify.cpp	52	19	3
void Foreach::VisitStmt() in src/checks/level1/foreach.cpp	63	19	1
void run() in src/checks/manuallevel/unused-result-check.cpp	23	19	1
void FunctionArgsByRef::processFunction() in src/checks/level2/function-args-by-ref.cpp	46	19	1
def load_json() in dev-scripts/generate.py	48	19	1
QtAccessSpecifierType AccessSpecifierManager::qtAccessSpecifierType() in src/AccessSpecifierManager.cpp	52	18	1
void WrongQGlobalStatic::VisitStmt() in src/checks/level0/wrong-qglobalstatic.cpp	51	18	1
void FullyQualifiedMocTypes::VisitDecl() in src/checks/level0/fully-qualified-moc-types.cpp	47	18	1
bool UnneededCast::handleNamedCast() in src/checks/manuallevel/unneeded-cast.cpp	36	18	1
void RuleOfTwoSoft::VisitStmt() in src/checks/level1/rule-of-two-soft.cpp	28	17	1
void OverriddenSignal::VisitDecl() in src/checks/level1/overridden-signal.cpp	41	17	1
void QDeleteAll::VisitStmt() in src/checks/level1/qdeleteall.cpp	44	17	1
void QRequiredResultCandidates::VisitDecl() in src/checks/manuallevel/qrequiredresult-candidates.cpp	37	17	1
void QStringAllocations::VisitOperatorCall() in src/checks/level2/qstring-allocations.cpp	48	17	1
void QStringAllocations::VisitFromLatin1OrUtf8() in src/checks/level2/qstring-allocations.cpp	49	17	1
void QStringArg::VisitStmt() in src/checks/level0/qstring-arg.cpp	51	16	1
void QHashNamespace::VisitDecl() in src/checks/level1/qhash-namespace.cpp	32	16	1
bool Qt6QLatin1StringCharToU::isInterestingCtorCall() in src/checks/manuallevel/qt6-qlatin1stringchar-to-u.cpp	51	16	3
void Qt6DeprecatedAPIFixes::fixForDeprecatedOperator() in src/checks/manuallevel/qt6-deprecated-api-fixes.cpp	81	16	2
void BaseClassEvent::VisitDecl() in src/checks/level2/base-class-event.cpp	40	16	1
void OldStyleConnect::VisitStmt() in src/checks/level2/old-style-connect.cpp	32	16	1