apache / parquet-cppConditional 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 1,287 units with 13,532 lines of code in units (52.6% of code).

0 very complex units (0 lines of code)
7 complex units (527 lines of code)
45 medium complex units (2,352 lines of code)
95 simple units (2,684 lines of code)
1,140 very simple units (7,969 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
def CheckLanguage() in build-support/cpplint.py	87	44	7
def Update() in build-support/cpplint.py	88	40	5
int32_t DecimalSize() in src/parquet/arrow/schema.cc	66	39	1
def CheckBraces() in build-support/cpplint.py	67	34	4
def CheckSpacing() in build-support/cpplint.py	51	33	5
Status FieldToNode() in src/parquet/arrow/schema.cc	135	28	4
SortOrder::type GetSortOrder() in src/parquet/types.cc	33	26	2
def CheckTrailingSemicolon() in build-support/cpplint.py	36	23	4
std::string LogicalTypeToString() in src/parquet/types.cc	50	23	1
explicit EvpCipher() in src/parquet/util/crypto.cc	63	22	3
ParquetType::type get_physical_type() in src/parquet/arrow/arrow-reader-writer-test.cc	46	22	1
def CheckForNonStandardConstructs() in build-support/cpplint.py	95	21	5
def CheckSpacingForFunctionCall() in build-support/cpplint.py	39	21	4
def CheckComment() in build-support/cpplint.py	32	21	5
def CheckBracesSpacing() in build-support/cpplint.py	30	21	4
def CheckStyle() in build-support/cpplint.py	67	20	6
Status PrimitiveImpl::WrapIntoListArray() in src/parquet/arrow/reader.cc	103	20	1
std::shared_ptr SerializedPageReader::NextPage() in src/parquet/column_reader.cc	90	19	0
LogicalType::type get_logical_type() in src/parquet/arrow/arrow-reader-writer-test.cc	52	19	1
def CheckForFunctionLengths() in build-support/cpplint.py	40	18	5
def IsRValueAllowed() in build-support/cpplint.py	32	17	3
def CheckForNonConstReference() in build-support/cpplint.py	61	17	5
def ParseArguments() in build-support/cpplint.py	53	17	1
void ParquetFilePrinter::DebugPrint() in src/parquet/printer.cc	100	17	5
void Hash_x64_128() in src/parquet/murmur3.cc	80	17	4
def GetTemplateArgs() in build-support/cpplint.py	43	15	2
def ProcessConfigOverrides() in build-support/cpplint.py	51	15	1
bool TypedColumnReader::ReadNewPage() in src/parquet/column_reader.cc	67	15	0
bool TypedRecordReader::ReadNewPage() in src/parquet/arrow/record_reader.cc	67	15	0
inline int64_t TypedColumnWriter::WriteMiniBatchSpaced() in src/parquet/column_writer.cc	54	14	7
std::shared_ptr Comparator::Make() in src/parquet/util/comparison.cc	38	14	1
Status PrimitiveImpl::NextBatch() in src/parquet/arrow/reader.cc	79	14	2
def resolve_jira() in dev/merge_parquet_pr.py	45	13	3
def FindEndOfExpressionInLine() in build-support/cpplint.py	43	13	3
def IsRValueType() in build-support/cpplint.py	85	13	5
def _ClassifyInclude() in build-support/cpplint.py	21	13	3
def CheckCStyleCast() in build-support/cpplint.py	35	13	6
def CheckRedundantVirtual() in build-support/cpplint.py	31	13	4
void ParquetFilePrinter::JSONPrint() in src/parquet/printer.cc	85	13	3
Status ArrowColumnWriter::WriteTimestampsCoerce() in src/parquet/arrow/writer.cc	58	13	4
int main() in tools/parquet_reader.cc	50	12	2
def CheckGlobalStatic() in build-support/cpplint.py	18	12	4
void TypedRowGroupStatistics::UpdateSpaced() in src/parquet/statistics.cc	42	12	5
inline int64_t TypedColumnWriter::WriteMiniBatch() in src/parquet/column_writer.cc	42	12	4
int64_t ReadRecords() in src/parquet/arrow/record_reader.cc	43	12	1
def InTemplateArgumentList() in build-support/cpplint.py	24	11	4
def CheckCasts() in build-support/cpplint.py	59	11	4
def CheckForIncludeWhatYouUse() in build-support/cpplint.py	39	11	5
def ProcessFile() in build-support/cpplint.py	40	11	3
std::shared_ptr ColumnWriter::Make() in src/parquet/column_writer.cc	39	11	3