Netflix/NfWebCrypto
File Complexity*
The distribution of files by complexity: the sum of the McCabe indexes of their units.
File Complexity Overall
  • There are 708 files with units, with 98,014 lines of code.
    • 4 very complex files (McCabe index sum 251+; 9,155 lines of code)
    • 17 complex files (McCabe index sum 126-250; 18,556 lines of code)
    • 41 medium complex files (McCabe index sum 51-125; 13,888 lines of code)
    • 89 slightly complex files (McCabe index sum 26-50; 18,500 lines of code)
    • 557 simple files (McCabe index sum 1-25; 37,915 lines of code)
  • 476 main files have no units (e.g. languages without unit analysis, or files without functions) and are not classified.
system9% | 18% | 14% | 18% | 38%
Legend:
251+
126-250
51-125
26-50
1-25


explore: grouped by folders | grouped by complexity
File Complexity per Extension
251+
126-250
51-125
26-50
1-25
c72% | 12% | 0% | 0% | 14%
js25% | 33% | 24% | 15% | 1%
cpp32% | 16% | 11% | 16% | 23%
cc0% | 18% | 12% | 24% | 44%
py0% | 18% | 50% | 18% | 12%
h0% | 6% | 0% | 4% | 89%
php0% | 0% | 0% | 0% | 100%
File Complexity per Logical Decomposition
primary
251+
126-250
51-125
26-50
1-25
plugin5% | 17% | 12% | 19% | 44%
web27% | 28% | 25% | 16% | 1%
crypto46% | 0% | 16% | 11% | 26%
base0% | 37% | 0% | 11% | 50%
Most Complex Files (Top 50)

The McCabe index of a file grows with its size: per 100 lines tells a large but plain file from a dense one, and most complex unit whether the complexity sits in one unit or is spread over many.

File# lines# unitsMcCabe index
(sum)		per 100
lines		most complex
unit
jasmine.js
in web/jasmine
 1679 235 517 31 27
pnacl_shim.c
in plugin/ppapi/ppapi/native_client/src/untrusted/pnacl_irt_shim
 4114 477 480 12 4
1807 45 376 21 49
testharness.js
in web/resources
 1555 107 351 23 62
keywrapunwrap.js
in web/jsTests
 1370 119 242 18 23
idl_parser.py
in plugin/ppapi/ppapi/generators
 594 88 234 39 20
multithreaded.js
in web/jsTests
 713 140 211 30 5
plugin.cc
in plugin/ppapi/ppapi/native_client/src/trusted/plugin
 1507 77 206 14 12
nacltest.js
in plugin/ppapi/ppapi/native_client/tools/browser_tester/browserdata
 708 85 187 26 9
ppb_rpc_client.cc
in plugin/ppapi/ppapi/native_client/src/shared/ppapi_proxy
 3381 186 186 6 1
ppb_rpc_server.cc
in plugin/ppapi/ppapi/native_client/src/shared/ppapi_proxy
 2847 186 186 7 1
942 35 182 19 21
ppb_instance_proxy.cc
in plugin/ppapi/ppapi/proxy
 1048 82 181 17 6
gles2.c
in plugin/ppapi/ppapi/lib/gl/gles2
 727 156 171 24 2
ppb_opengles2_shared.cc
in plugin/ppapi/ppapi/shared_impl
 866 156 156 18 1
plugin_opengles.cc
in plugin/ppapi/ppapi/native_client/src/shared/ppapi_proxy
 898 156 156 17 1
Variant.h
in base
 650 62 154 24 46
jasmine-html.js
in web/jasmine
 543 52 145 27 10
793 72 136 17 5
idl_c_proto.py
in plugin/ppapi/ppapi/generators
 515 34 132 26 11
ppapi_param_traits.cc
in plugin/ppapi/ppapi/proxy
 454 50 127 28 19
idl_diff.py
in plugin/ppapi/ppapi/generators
 242 16 125 52 16
idl_node.py
in plugin/ppapi/ppapi/generators
 322 37 122 38 18
427 54 112 26 7
keywrapunwrap_stress.js
in web/jsTests/stressTests
 365 86 105 29 3
pnacl_component_crx_gen.py
in plugin/ppapi/ppapi/native_client/src/untrusted/pnacl_support_extension
 386 36 95 25 11
ppb_input_event_thunk.cc
in plugin/ppapi/ppapi/thunk
 408 38 91 22 7
object_serialize.cc
in plugin/ppapi/ppapi/native_client/src/shared/ppapi_proxy
 382 12 89 23 16
websocket_resource.cc
in plugin/ppapi/ppapi/proxy
 359 25 83 23 14
pnacl_coordinator.cc
in plugin/ppapi/ppapi/native_client/src/trusted/plugin
 616 29 83 13 8
377 17 77 20 8
json_manifest.cc
in plugin/ppapi/ppapi/native_client/src/trusted/plugin
 415 14 77 19 13
ppb_graphics_3d_proxy.cc
in plugin/ppapi/ppapi/proxy
 404 48 76 19 8
net_address_private_impl.cc
in plugin/ppapi/ppapi/shared_impl/private
 382 21 76 20 20
258 35 75 29 18
service_runtime.cc
in plugin/ppapi/ppapi/native_client/src/trusted/plugin
 687 27 75 11 9
idl_thunk.py
in plugin/ppapi/ppapi/generators
 306 24 75 25 10
390 39 73 19 5
ppb_url_loader_proxy.cc
in plugin/ppapi/ppapi/proxy
 487 34 73 15 6
browserlauncher.py
in plugin/ppapi/ppapi/native_client/tools/browser_tester/browsertester
 246 28 73 30 13
encryptdecrypt_stress.js
in web/jsTests/stressTests
 258 57 71 28 3
signverify_stress.js
in web/jsTests/stressTests
 257 57 71 28 3
testharnessreport.js
in web/resources
 298 13 70 23 16
ppb_input_event_shared.cc
in plugin/ppapi/ppapi/shared_impl
 293 27 68 23 8
idl_release.py
in plugin/ppapi/ppapi/generators
 223 31 68 30 10
idl_c_header.py
in plugin/ppapi/ppapi/generators
 211 12 67 32 22
importexportjwk.js
in web/jsTests
 513 43 66 13 7
ppp_content_decryptor_private_proxy.cc
in plugin/ppapi/ppapi/proxy
 492 23 66 13 6
tcp_socket_private_impl.cc
in plugin/ppapi/ppapi/shared_impl/private
 256 17 66 26 7
srpcgen.py
in plugin/ppapi/ppapi/native_client/src/tools
 309 13 64 21 19
About This Analysis
  • File complexity is the sum of the McCabe indexes (conditional complexity) of the units (methods, functions...) in a file.
  • Files are classified in five categories based on that sum: 1-25 (simple files), 26-50 (slightly complex files), 51-125 (medium complex files), 126-250 (complex files), 251+ (very complex files). The default bands are five times the unit complexity bands, as a file is a group of units.
  • Only main code files with units are classified. Files without units (languages without unit analysis, or files without functions) have no complexity to measure and are left out rather than counted as simple.
  • A very complex file holds many decisions, which often means it has too many responsibilities: a candidate to split, and a place where changes need more testing.
Learn more...