apache / arrow-go - 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 9,116 units with 95,898 lines of code in units (52.2% of code).

23 very complex units (5,226 lines of code)
46 complex units (5,949 lines of code)
206 medium complex units (10,881 lines of code)
593 simple units (16,514 lines of code)
8,248 very simple units (57,328 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
func writeDenseArrow() in parquet/pqarrow/encode_arrow.go	340	105	6
func typeFromJSON() in arrow/internal/arrjson/arrjson.go	255	83	2
func main() in parquet/cmd/parquet_reader/main.go	335	78	0
func() in arrow/csv/transformer.go	250	75	1
func getGoArithmeticOpFloating[InT, OutT constraints.Float]() in arrow/compute/internal/kernels/base_arithmetic.go	259	74	1
func TransposeInts() in internal/utils/transpose_ints_def.go	157	73	3
func() in arrow/flight/flightsql/server.go	272	67	1
int unpack32_avx2() in parquet/internal/utils/_lib/bit_packing_avx2.c	106	67	4
int unpack32_neon() in parquet/internal/utils/_lib/bit_packing_neon.c	106	67	4
func typeToNode() in parquet/schema/reflection.go	194	65	4
func RegisterScalarArithmetic() in arrow/compute/arithmetic.go	374	64	1
func RandomNullable() in parquet/internal/testutils/random_arrow.go	291	64	3
func() in arrow/cdata/cdata_exports.go	148	61	1
func appendToBldr() in arrow/scalar/append.go	160	60	2
func MakeScalarParam() in arrow/scalar/parse.go	170	60	2
func() in arrow/ipc/writer.go	264	56	1
func GetScalar() in arrow/scalar/scalar.go	166	56	2
func arrayToJSON() in arrow/internal/arrjson/arrjson.go	393	56	2
func concat() in arrow/array/concat.go	228	56	2
func typeToJSON() in arrow/internal/arrjson/arrjson.go	120	55	1
func arrayFromJSON() in arrow/internal/arrjson/arrjson.go	357	53	3
func NewBuilder() in arrow/array/builder.go	125	52	2
func() in arrow/avro/reader_types.go	156	51	1
func getGoArithmeticOpIntegral[InT, OutT arrow.UintType \| arrow.IntType]() in arrow/compute/internal/kernels/base_arithmetic.go	211	50	1
func arrayOf() in arrow/internal/arrdata/arrdata.go	235	50	3
func arrayApproxEqual() in arrow/array/compare.go	151	50	3
func() in arrow/ipc/metadata.go	227	49	1
func() in arrow/cdata/cdata.go	150	49	1
func Equal() in arrow/array/compare.go	148	49	2
func literalToDatum() in arrow/compute/exprs/exec.go	182	48	3
func TypeEqual() in arrow/compare.go	109	47	3
func importSchema() in arrow/cdata/cdata.go	168	47	1
func concreteTypeFromFB() in arrow/ipc/metadata.go	150	46	3
func buildArray() in arrow/internal/arrdata/arrdata.go	155	46	2
func setFieldValue() in arrow/flight/flightsql/driver/utils.go	134	45	2
func NewDictionaryBuilderWithDict() in arrow/array/dictionary.go	106	45	3
func() in arrow/internal/flight_integration/scenario.go	159	44	1
func() in arrow/internal/flight_integration/scenario.go	162	43	1
func ToSubstraitType() in arrow/compute/exprs/types.go	148	39	3
func mapFieldBuilders() in arrow/avro/reader_types.go	184	39	3
func ParseScalar() in arrow/scalar/parse.go	118	37	2
func applyOriginalStorageMetadata() in parquet/pqarrow/schema.go	107	37	2
func executeScalarBatch() in arrow/compute/exprs/exec.go	137	36	4
func unpack32Default() in parquet/internal/utils/bit_packing_default.go	79	35	3
func infoFromTags() in parquet/schema/reflection.go	98	34	1
func FromSubstraitType() in arrow/compute/exprs/types.go	96	33	2
func NewFieldRefFromDotPath() in arrow/compute/exprs/builders.go	125	33	2
func primitiveFilterImpl() in arrow/compute/internal/kernels/vector_selection.go	106	32	5
func binaryFilterImpl[OffsetT int32 \| int64]() in arrow/compute/internal/kernels/vector_selection.go	135	32	6
func() in arrow/csv/reader.go	130	31	1