apache / xerces-c - 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 3,477 units with 58,305 lines of code in units (32.8% of code).

23 very complex units (6,707 lines of code)
70 complex units (9,281 lines of code)
199 medium complex units (11,783 lines of code)
275 simple units (8,182 lines of code)
2,910 very simple units (22,352 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
bool IGXMLScanner::scanStartTagNS() in src/xercesc/internal/IGXMLScanner.cpp	549	141	1
bool SGXMLScanner::scanStartTag() in src/xercesc/internal/SGXMLScanner.cpp	554	112	1
bool XPathScanner::scanExpression() in src/xercesc/validators/schema/identity/XercesXPath.cpp	420	107	4
void DOMLSSerializerImpl::processNode() in src/xercesc/dom/impl/DOMLSSerializerImpl.cpp	483	106	2
void TraverseSchema::traverseAttributeDecl() in src/xercesc/validators/schema/TraverseSchema.cpp	291	104	3
bool XSValue::validateStrings() in src/xercesc/framework/psvi/XSValue.cpp	275	82	5
void DFAContentModel::buildDFA() in src/xercesc/validators/common/DFAContentModel.cpp	392	76	1
bool IGXMLScanner::scanStartTag() in src/xercesc/internal/IGXMLScanner.cpp	394	67	1
bool WFXMLScanner::scanStartTagNS() in src/xercesc/internal/WFXMLScanner.cpp	316	62	1
void XercesXPath::parseExpression() in src/xercesc/validators/schema/identity/XercesXPath.cpp	243	61	2
void AbstractNumericFacetValidator::inspectFacetBase() in src/xercesc/validators/datatype/AbstractNumericFacetValidator.cpp	280	61	1
void TraverseSchema::traverseSimpleContentDecl() in src/xercesc/validators/schema/TraverseSchema.cpp	257	59	5
void IGXMLScanner::resolveSchemaGrammar() in src/xercesc/internal/IGXMLScanner2.cpp	205	58	3
bool DGXMLScanner::scanStartTagNS() in src/xercesc/internal/DGXMLScanner.cpp	305	58	1
void XMLUri::initialize() in src/xercesc/util/XMLUri.cpp	211	56	2
void XMLScanner::scanXMLDecl() in src/xercesc/internal/XMLScanner.cpp	170	55	1
void SchemaValidator::checkParticleDerivationOk() in src/xercesc/validators/schema/SchemaValidator.cpp	185	54	7
int RegularExpression::match() in src/xercesc/util/regx/RegularExpression.cpp	194	54	3
void SGXMLScanner::resolveSchemaGrammar() in src/xercesc/internal/SGXMLScanner.cpp	186	54	3
bool DGXMLScanner::scanStartTag() in src/xercesc/internal/DGXMLScanner.cpp	297	53	1
void DOMLSParserImpl::setParameter() in src/xercesc/parsers/DOMLSParserImpl.cpp	180	52	2
bool IGXMLScanner::scanAttValue() in src/xercesc/internal/IGXMLScanner2.cpp	160	52	3
bool DGXMLScanner::scanAttValue() in src/xercesc/internal/DGXMLScanner.cpp	160	52	3
void XMLReader::doInitDecode() in src/xercesc/internal/XMLReader.cpp	252	50	0
void TraverseSchema::processChildren() in src/xercesc/validators/schema/TraverseSchema.cpp	154	49	1
void TraverseSchema::processComplexContent() in src/xercesc/validators/schema/TraverseSchema.cpp	232	49	7
void AbstractDOMParser::startElement() in src/xercesc/parsers/AbstractDOMParser.cpp	175	48	7
void IGXMLScanner::scanEndTag() in src/xercesc/internal/IGXMLScanner.cpp	211	47	1
void SchemaValidator::validateElement() in src/xercesc/validators/schema/SchemaValidator.cpp	179	46	1
bool SchemaValidator::checkContent() in src/xercesc/validators/schema/SchemaValidator.cpp	170	45	4
void XMLUri::initializePath() in src/xercesc/util/XMLUri.cpp	243	45	1
bool SimpleContentModel::validateContentSpecial() in src/xercesc/validators/common/SimpleContentModel.cpp	153	44	7
void TraverseSchema::processAttributeDeclRef() in src/xercesc/validators/schema/TraverseSchema.cpp	168	44	6
void TraverseSchema::processAttributes() in src/xercesc/validators/schema/TraverseSchema.cpp	154	44	4
void IGXMLScanner::scanCDSection() in src/xercesc/internal/IGXMLScanner2.cpp	143	42	0
bool DOMLSParserImpl::canSetParameter() in src/xercesc/parsers/DOMLSParserImpl.cpp	48	41	2
static void formatNode() in src/xercesc/validators/common/ContentSpecNode.cpp	115	40	3
void IGXMLScanner::scanCharData() in src/xercesc/internal/IGXMLScanner2.cpp	162	40	1
int TraverseSchema::traverseComplexTypeDecl() in src/xercesc/validators/schema/TraverseSchema.cpp	137	38	3
void XMLURL::parse() in src/xercesc/util/XMLURL.cpp	184	38	1
bool XMLURL::parse() in src/xercesc/util/XMLURL.cpp	162	38	2
bool WFXMLScanner::scanStartTag() in src/xercesc/internal/WFXMLScanner.cpp	214	38	1
bool XSAXMLScanner::scanStartTag() in src/xercesc/internal/XSAXMLScanner.cpp	203	37	1
void IGXMLScanner::scanDocTypeDecl() in src/xercesc/internal/IGXMLScanner.cpp	206	37	0
void AbstractStringValidator::inspectFacetBase() in src/xercesc/validators/datatype/AbstractStringValidator.cpp	149	36	1
void IGXMLScanner::sendCharData() in src/xercesc/internal/IGXMLScanner2.cpp	134	36	1
void DGXMLScanner::scanDocTypeDecl() in src/xercesc/internal/DGXMLScanner.cpp	202	36	0
void SGXMLScanner::scanCDSection() in src/xercesc/internal/SGXMLScanner.cpp	129	36	0
bool SGXMLScanner::normalizeAttValue() in src/xercesc/internal/SGXMLScanner.cpp	100	35	4
void SGXMLScanner::scanCharData() in src/xercesc/internal/SGXMLScanner.cpp	148	35	1