JetBrains / kotlin Source Code Overview

Analysis scope, overview of main, test, generated, deployment, build, and other code.

Source Code Analysis Scope

Files includes and excluded from analyses

txt

properties

mjs

plist

pro

proto

podspec

storyboard

gitattributes

patch

flex

editorconfig

cmd

policy

clang-format

50 extensions are included in analyses: kt, txt, java, kts, h, xml, gradle, swift, md, js, json, cpp, properties, ts, hpp, mjs, m, c, sh, plist, mm, gitignore, pro, proto, bat, podspec, groovy, storyboard, gitattributes, html, in, patch, re, css, yaml, flex, py, toml, g4, editorconfig, cmd, pp, policy, cc, dockerfile, adoc, ll, clang-format, scala, inc
13 criteria are used to exclude files from analysis:

exclude files with path like ".*/dependencies/.*" (Dependencies) (107 files).
exclude files with path like ".*/[.][a-zA-Z0-9_]+.*" (Hidden files and folders) (140 files).
exclude files with path like ".*/extern(al)?/.*" (Dependencies) (48 files).
exclude files with path like ".*/target/.*" (Compiled files) (33 files).
exclude files with path like ".*\.d\.ts" (Typescript definition files) (95 files).
exclude files with path like ".*/bin/.*" (Binaries for distribution) (6 files).
exclude files with path like ".*/(3rd|[Tt]hird)[-_]?[Pp]arty/.*" (Dependencies) (115 files).
exclude files with path like ".*/gradle/wrapper/.*" (Gradle) (6 files).
exclude files with path like ".*/proguard[-]rules[.]pro" (ProGuard) (6 files).
exclude files with path like ".*/cache/.*" (Caches) (4 files).
exclude files with path like ".*/mvnw\.cmd" (Maven) (2 files).
exclude files with path like ".*/testdata/.*" (Test data) (3 files).
exclude files with path like ".*/docs/.*" (Documentation) (54 files).

The source code folder contains 117,625 files:

110,491 files are included in analyses.
7,134 files are excluded from analyses:

Explore all files....

Overview of Analyzed Files

Basic stats on analyzed files

Intro

For analysis purposes we separate files in scope into several categories: main, test, generated, deployment and build, and other.

The main category contains all manually created source code files that are being used in the production.
Files in the main category are used as input for other analyses: logical decomposition, concerns, duplication, file size, unit size, and conditional complexity.
Test source code files are used only for testing of the product. These files are normally not deployed to production.
Build and deployment source code files are used to configure or support build and deployment process.
Generated source code files are automatically generated files that have not been manually changed after generation.
While a source code folder may contain a number of files, we are primarily interested in the source code files that are being written and maintained by developers.
Files containing binaries, documentation, or third-party libraries, for instance, are excluded from analysis. The exception are third-party libraries that have been changed by developers.

Main Code

All manually created or maintained source code that defines logic of the product that is run in a production environment.

proto

flex

mjs

pro

policy

Explore: circles | sunburst

The following criteria are used to filter files:

files with paths like ".*".

51394 files match defined criteria (2,116,270 LOC, 100.0% vs. main code):

45,706 *.kt files (1,732,904 LOC)
3,094 *.java files (255,200 LOC)
1,383 *.kts files (29,306 LOC)
189 *.cpp files (27,452 LOC)
138 *.xml files (14,238 LOC)
19 *.c files (14,091 LOC)
138 *.hpp files (10,102 LOC)
222 *.h files (8,536 LOC)
68 *.swift files (4,866 LOC)
256 *.js files (4,668 LOC)
20 *.mm files (3,816 LOC)
15 *.proto files (2,667 LOC)
44 *.ts files (1,828 LOC)
3 *.py files (1,187 LOC)
4 *.flex files (1,117 LOC)
1 *.cc files (1,099 LOC)
60 *.mjs files (948 LOC)
2 *.g4 files (761 LOC)
11 *.pro files (583 LOC)
3 *.css files (225 LOC)
2 *.toml files (174 LOC)
5 *.groovy files (146 LOC)
1 *.inc files (123 LOC)
5 *.m files (104 LOC)
1 *.policy files (66 LOC)
1 *.pp files (30 LOC)
2 *.html files (28 LOC)
1 *.yaml files (5 LOC)

" *.kt" is biggest, containing 81.88% of LOC.
" *.yaml" is smallest, containing 0% of LOC.

Test Code

Used only for testing of the product. Normally not deployed in a production environment.

podspec

proto

Explore: circles | sunburst

The following criteria are used to filter files:

files with paths like ".*/[Tt]ests/.*".
files with paths like ".*/[Tt]est/.*".
files with paths like ".*[-]tests/.*".
files with paths like ".*[.][Tt]est[.].*".
files with paths like ".*[.]test[.].*".
files with paths like ".*/test_.*".
files with paths like ".*/test[.].*".
files with paths like ".*_test[.].*".
files with paths like ".*[-]test[-].*".
files with paths like ".*[-]tests[-].*".
files with paths like ".*/mock[a-zA-Z0-9_\- ]+/.*".
files with paths like ".*[.][Tt]ests/.*".
files with paths like ".*[.][Tt]est/.*".
files with paths like ".*/src/androidTest/.*".
files with paths like ".*UnitTests[.][a-zA-Z0-9_]+".
files with paths like ".*_tests[.].*".
files with paths like ".*/testing[.].*".

21334 files match defined criteria (729,811 LOC, 34.5% vs. main code):

18,970 *.kt files (636,992 LOC)
330 *.java files (37,200 LOC)
841 *.kts files (16,224 LOC)
234 *.swift files (16,165 LOC)
267 *.h files (9,837 LOC)
361 *.gradle files (4,785 LOC)
52 *.m files (3,932 LOC)
173 *.xml files (2,815 LOC)
15 *.cpp files (496 LOC)
20 *.js files (468 LOC)
23 *.c files (347 LOC)
16 *.podspec files (216 LOC)
1 *.mm files (125 LOC)
6 *.html files (62 LOC)
5 *.groovy files (48 LOC)
2 *.proto files (30 LOC)
1 *.sh files (26 LOC)
6 *.in files (12 LOC)
1 *.ll files (9 LOC)
6 *.re files (8 LOC)
2 *.css files (6 LOC)
1 *.scala files (5 LOC)
1 *.toml files (3 LOC)

" *.kt" is biggest, containing 87.28% of LOC.
" *.toml" is smallest, containing 0% of LOC.

Generated Code

Automatically generated files, not manually changed after generation.

Explore: circles | sunburst

The following criteria are used to filter files:

files with any line of content like "//[ ]*Generated by .*".
files with paths like ".*[.](py|java|h|cc|cpp|m|rb|php)" AND any line of content like ".*Generated by the protocol buffer compiler[.][ ]+DO NOT EDIT[!].*".
files with paths like ".*_generated[.][a-z]+".
files with any line of content like "// This file was generated .*".
files with paths like ".*/package[-]lock[.]json".
files with paths like ".*/generated/.*".
files with paths like ".*/src/gen/.*".

1691 files match defined criteria (373,126 LOC, 17.6% vs. main code):

773 *.java files (276,596 LOC)
911 *.kt files (76,205 LOC)
6 *.json files (20,121 LOC)
1 *.h files (204 LOC)

" *.java" is biggest, containing 74.13% of LOC.
" *.h" is smallest, containing 0.05% of LOC.

Build and Deployment Code

Source code used to configure or support build and deployment process.

Explore: circles | sunburst

The following criteria are used to filter files:

files with paths like ".*[.]sh".
files with paths like ".*[.]git[a-z]+".
files with paths like ".*/[.]gitattributes".
files with paths like ".*/package[-]lock[.]json".
files with paths like ".*/package[.]json".
files with paths like ".*/[.]gitignore".
files with paths like ".*[.]gradle".
files with paths like ".*/build[.]xml".
files with paths like ".*/AndroidManifest[.]xml".
files with paths like ".*[.]bat".
files with paths like ".*/pom[.]xml".
files with paths like ".*[.]podspec".
files with paths like ".*([.]|/)webpack([.]|/).*".
files with paths like ".*[.]dockerfile".

161 files match defined criteria (11,399 LOC, 0.5% vs. main code):

94 *.xml files (6,493 LOC)
24 *.gradle files (2,837 LOC)
10 *.kt files (1,066 LOC)
22 *.sh files (591 LOC)
10 *.bat files (368 LOC)
1 *.dockerfile files (44 LOC)

" *.xml" is biggest, containing 56.96% of LOC.
" *.dockerfile" is smallest, containing 0.39% of LOC.

Other Code

txt

properties

plist

patch

storyboard

Explore: circles | sunburst

The following criteria are used to filter files:

files with paths like ".*[.]md".
files with paths like ".*[.]txt".
files with paths like ".*/README[.][a-z0-9]+".
files with paths like ".*[.]properties".
files with paths like ".*[.]json".
files with paths like ".*[.]editorconfig".
files with paths like ".*/[Ss]amples/.*".
files with paths like ".*[.]plist".
files with paths like ".*[.]storyboard".
files with paths like ".*/[Ee]xamples/.*".
files with paths like ".*/[.]gitignore".
files with paths like ".*/[Dd]emos?/.*".
files with paths like ".*[.]patch".
files with paths like ".*/[Dd]ocumentation/.*".
files with paths like ".*/LICENSE[.][a-z0-9]+".
files with paths like ".*/COPYRIGHT[.][a-z0-9]+".
files with paths like ".*[.]adoc".

35918 files match defined criteria (2,484,198 LOC, 117.4% vs. main code):

34,930 *.txt files (2,402,002 LOC)
259 *.json files (51,632 LOC)
220 *.md files (12,391 LOC)
189 *.kt files (11,534 LOC)
192 *.properties files (3,325 LOC)
65 *.kts files (1,070 LOC)
1 *.adoc files (636 LOC)
25 *.plist files (547 LOC)
6 *.patch files (454 LOC)
17 *.java files (208 LOC)
9 *.storyboard files (196 LOC)
1 *.gradle files (77 LOC)
1 *.bat files (68 LOC)
1 *.xml files (42 LOC)
1 *.sh files (15 LOC)
1 *.in files (1 LOC)

" *.txt" is biggest, containing 96.69% of LOC.
" *.in" is smallest, containing 0% of LOC.

Analyzers

Info about analyzers used for source code examinations.

*.kt files are analyzed with KotlinAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis (based on imports and package statements)

*.java files are analyzed with JavaAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis (based on package names)

*.kts files are analyzed with KotlinAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis (based on imports and package statements)

*.cpp files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.xml files are analyzed with XmlAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.c files are analyzed with CStyleAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

No dependency analysis

*.hpp files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.h files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.swift files are analyzed with SwiftAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

No dependency analysis

*.js files are analyzed with JavaScriptAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

No dependency analysis

*.mm files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.proto files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.ts files are analyzed with TypeScriptAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

No dependency analysis

*.py files are analyzed with PythonAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis

*.flex files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.cc files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.mjs files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.g4 files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.pro files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.css files are analyzed with CssAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.toml files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.groovy files are analyzed with GroovyAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis

*.inc files are analyzed with PhpAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Basic heuristic dependency analysis

*.m files are analyzed with CppAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.policy files are analyzed with DefaultLanguageAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Basic code cleaning (empty lines removed for LOC calculations and duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.pp files are analyzed with PuppetAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

*.html files are analyzed with HtmlAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

Unit size analysis

Conditional complexity analysis

Advanced heuristic dependency analysis

*.yaml files are analyzed with YamlAnalyzer:

All basic standard analyses supported (source code overview, duplication, file size, concerns, findings, metrics, controls)

Advanced code cleaning (empty lines and comments removed for LOC calculations, additional cleaning for duplication calculations)

No unit size analysis

No conditional complexity analysis

No dependency analysis

2026-01-18 17:27