JetBrains / kotlin
File Change Frequency

File change frequency (churn) shows the distribution of file updates (days with at least one commit).

Overview
File Change Frequency Overall
  • There are 51,393 files with 2,116,269 lines of code.
    • 133 files changed more than 100 times (105,730 lines of code)
    • 347 files changed 51-100 times (159,211 lines of code)
    • 1,293 files changed 21-50 times (258,025 lines of code)
    • 12,151 files changed 6-20 times (693,754 lines of code)
    • 37,469 files changed 1-5 times (899,549 lines of code)
4% | 7% | 12% | 32% | 42%
Legend:
101+
51-100
21-50
6-20
1-5

explore: grouped by folders | grouped by update frequency | data
Contributors Count Frequency Overall
  • There are 51,393 files with 2,116,269 lines of code.
    • 122 files changed by more than 25 contributors (90,842 lines of code)
    • 1,643 files changed by 11-25 contributors (331,895 lines of code)
    • 6,434 files changed by 6-10 contributors (418,150 lines of code)
    • 21,781 files changed by 2-5 contributors (867,333 lines of code)
    • 21,413 files changed by 1 contributor (408,049 lines of code)
4% | 15% | 19% | 40% | 19%
Legend:
26+
11-25
6-10
2-5
1

explore: grouped by folders | grouped by contributors count | data
File Change Frequency per File Extension
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
File Change Frequency per Extension
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
kt5% | 7% | 12% | 33% | 41%
java3% | 6% | 13% | 34% | 42%
xml41% | 0% | 1% | 5% | 51%
kts10% | 10% | 16% | 26% | 36%
toml97% | 0% | 0% | 0% | 2%
mm0% | 21% | 15% | 38% | 24%
cpp0% | 2% | 9% | 39% | 49%
proto0% | 22% | 18% | 7% | 51%
h0% | 3% | <1% | 7% | 88%
py0% | 0% | 55% | 27% | 17%
hpp0% | 0% | 6% | 48% | 45%
pro0% | 0% | 58% | 10% | 30%
flex0% | 0% | 0% | 50% | 49%
css0% | 0% | 0% | 69% | 30%
swift0% | 0% | 0% | 2% | 97%
js0% | 0% | 0% | 2% | 97%
groovy0% | 0% | 0% | 80% | 19%
policy0% | 0% | 0% | 100% | 0%
c0% | 0% | 0% | 0% | 100%
ts0% | 0% | 0% | 0% | 100%
cc0% | 0% | 0% | 0% | 100%
mjs0% | 0% | 0% | 0% | 100%
g40% | 0% | 0% | 0% | 100%
inc0% | 0% | 0% | 0% | 100%
m0% | 0% | 0% | 0% | 100%
pp0% | 0% | 0% | 0% | 100%
html0% | 0% | 0% | 0% | 100%
yaml0% | 0% | 0% | 0% | 100%
File Change Frequency per Logical Decomposition
primary
primary (file change frequency)
The number of recorded file updates
101+
51-100
21-50
6-20
1-5
compiler6% | 8% | 13% | 31% | 40%
plugins6% | 3% | 8% | 29% | 51%
gradle96% | 0% | 0% | 0% | 3%
libraries2% | 7% | 13% | 41% | 35%
core8% | 12% | 18% | 30% | 29%
kotlin-native1% | 6% | 11% | 27% | 52%
ROOT93% | 0% | 0% | 5% | <1%
jps4% | 7% | 6% | 20% | 59%
prepare29% | 0% | 35% | 12% | 22%
generators1% | 5% | 9% | 56% | 27%
analysis0% | 10% | 10% | 35% | 43%
native0% | 1% | 9% | 38% | 51%
build-common0% | 7% | 47% | 25% | 19%
wasm0% | 11% | 42% | 10% | 35%
repo0% | 6% | 1% | 36% | 55%
js0% | <1% | 4% | 40% | 54%
benchmarks0% | 0% | 38% | 0% | 61%
annotations0% | 0% | 0% | 8% | 91%
test-instrumenter0% | 0% | 0% | 16% | 83%
idea0% | 0% | 0% | 2% | 97%
scripts0% | 0% | 0% | 0% | 100%
Most Frequently Changed Files (Top 50)

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
1094 - 2017-04-26 2026-01-08 912 134 ilya.gorbunov@jetbrains.com sergey.shanshin@jetbrains.com
DefaultErrorMessages.java
in compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering
 1137 5 2015-01-10 2025-11-04 574 65 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
LanguageVersionSettings.kt
in compiler/util/src/org/jetbrains/kotlin/config
 585 5 2016-09-26 2026-01-14 554 63 alexander.udalov@jetbrains.com artem.kobzar@jetbrains.com
Errors.java
in compiler/frontend/src/org/jetbrains/kotlin/diagnostics
 1152 5 2015-01-10 2025-11-04 550 68 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
FirErrors.kt
in compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics
 1005 - 2021-01-26 2026-01-14 477 60 ilya.kirillov@jetbrains.com alejandro.serrano.mena@jetb...
FirDiagnosticsList.kt
in compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics
 2096 - 2021-01-26 2026-01-14 475 60 ilya.kirillov@jetbrains.com alejandro.serrano.mena@jetb...
5885 - 2021-02-02 2026-01-14 406 82 sebastian.sellmair@jetbrain... cristian.garcia-marin@jetbr...
Fir2IrVisitor.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 1588 43 2019-03-26 2025-12-08 370 42 dmitry.petrov@jetbrains.com milosz.piekutowski@jetbrain...
Fir2IrDeclarationStorage.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 1171 39 2019-04-05 2025-10-28 366 45 mikhail.glukhikh@jetbrains.com mikhail.glukhikh@jetbrains.com
FirDeclarationsResolveTransformer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve
 1313 29 2019-09-05 2025-12-11 358 35 mikhail.glukhikh@jetbrains.com braulioa@google.com
FirExpressionsResolveTransformer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve
 1775 55 2019-10-16 2025-12-15 337 34 denis.zharkov@jetbrains.com mikhail.glukhikh@jetbrains.com
FirErrorsDefaultMessages.kt
in compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics
 3656 2 2021-10-05 2026-01-14 335 45 ilya.chernikov@jetbrains.com alejandro.serrano.mena@jetb...
ResolveUtils.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve
 670 4 2019-02-11 2025-11-28 307 32 mikhail.glukhikh@jetbrains.com grigorii.solnyshkin@jetbrai...
CallAndReferenceGenerator.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators
 1315 14 2020-03-28 2025-12-08 283 37 jsjeon@google.com milosz.piekutowski@jetbrain...
FirDataFlowAnalyzer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa
 1440 96 2019-08-22 2025-12-17 275 29 dmitriy.novozhilov@jetbrain... mikhail.glukhikh@jetbrains.com
ComposableFunctionBodyTransformer.kt
in plugins/compose/compiler-hosted/src/main/java/androidx/compose/compiler/plugins/kotlin/lower
 4077 74 2020-08-25 2025-11-20 251 31 lpf@google.com dmitriy.novozhilov@jetbrain...
IrUtils.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util
 1338 9 2018-05-23 2025-12-19 249 55 dmitry.petrov@jetbrains.com milosz.piekutowski@jetbrain...
FirCallCompletionResultsWriterTransformer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers
 1164 31 2019-07-20 2025-11-28 243 30 mikhail.glukhikh@jetbrains.com kirill.rakhman@jetbrains.com
JsLoweringPhases.kt
in compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js
 237 1 2018-12-03 2026-01-15 234 36 roman.artemev@jetbrains.com artem.kobzar@jetbrains.com
coneDiagnosticToFirDiagnostic.kt
in compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics
 958 2 2021-01-26 2026-01-02 231 30 ilya.kirillov@jetbrains.com mikhail.glukhikh@jetbrains.com
BasicExpressionTypingVisitor.java
in compiler/frontend/src/org/jetbrains/kotlin/types/expressions
 1520 72 2014-12-30 2024-06-17 226 36 alexey.tsvetkov@jetbrains.com alejandro.serrano.mena@jetb...
build.gradle.kts
in libraries/tools/kotlin-gradle-plugin
 537 1 2018-10-29 2026-01-15 219 50 alexey.tsvetkov@jetbrains.com artem.kobzar@jetbrains.com
KotlinToJVMBytecodeCompiler.kt
in compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler
 398 4 2016-01-13 2025-12-17 218 41 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
Fir2IrConverter.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 574 6 2019-04-05 2025-11-11 218 34 mikhail.glukhikh@jetbrains.com dmitriy.novozhilov@jetbrain...
FirHelpers.kt
in compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers
 873 9 2020-03-27 2026-01-08 215 37 lunyak.kolya@mail.ru nikolay.lunyak@jetbrains.com
JsIrBackendContext.kt
in compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js
 140 - 2018-03-14 2025-10-14 211 35 zalim.bashorov@jetbrains.com wojciech.litewka@jetbrains.com
KotlinBuilder.kt
in jps/jps-plugin/src/org/jetbrains/kotlin/jps/build
 629 8 2014-09-09 2025-10-17 209 32 mutcianko.m@gmail.com aleksei.cherepanov@jetbrain...
K2JVMCompiler.kt
in compiler/cli/src/org/jetbrains/kotlin/cli/jvm
 264 7 2015-06-18 2026-01-08 202 39 stanislav.erokhin@jetbrains... wojciech.kalicinski@jetbrai...
klib.kt
in compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js
 595 8 2019-03-21 2026-01-12 202 40 anton.bannykh@jetbrains.com aleksandr.shefer@jetbrains.com
JvmBackendContext.kt
in compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm
 142 1 2016-09-14 2025-07-11 201 36 dmitry.petrov@jetbrains.com ivan.kylchik@jetbrains.com
GenerationState.kt
in compiler/backend/src/org/jetbrains/kotlin/codegen/state
 103 - 2015-06-23 2025-12-03 199 34 mikhael.bogdanov@jetbrains.com dmitriy.novozhilov@jetbrain...
DescriptorResolver.java
in compiler/frontend/src/org/jetbrains/kotlin/resolve
 1257 40 2015-01-11 2025-08-04 195 37 alexander.udalov@jetbrains.com alexey.belkov@jetbrains.com
IrToBitcode.kt
in kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm
 2178 60 2020-10-27 2025-12-11 192 33 stanislav.erokhin@jetbrains... aleksei.glushko@jetbrains.com
ControlFlowGraphBuilder.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/dfa/cfg
 1263 84 2019-08-22 2025-12-05 190 26 dmitriy.novozhilov@jetbrain... mikhail.glukhikh@jetbrains.com
ImplementationConfigurator.kt
in compiler/fir/tree/tree-generator/src/org/jetbrains/kotlin/fir/tree/generator
 691 2 2019-07-31 2025-11-03 186 32 mikhail.glukhikh@jetbrains.com ivan.kochurkin@jetbrains.com
FirElementSerializer.kt
in compiler/fir/fir-serialization/src/org/jetbrains/kotlin/fir/serialization
 1322 10 2020-04-13 2025-11-28 181 32 mikhail.glukhikh@jetbrains.com kirill.rakhman@jetbrains.com
KotlinBuiltIns.java
in core/descriptors/src/org/jetbrains/kotlin/builtins
 805 170 2015-01-10 2024-10-23 180 38 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
LocalDeclarationsLowering.kt
in compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower
 616 23 2017-05-31 2025-12-19 179 42 mikhael.bogdanov@jetbrains.com ivan.kylchik@jetbrains.com
PsiRawFirBuilder.kt
in compiler/fir/raw-fir/psi2fir/src/org/jetbrains/kotlin/fir/builder
 3350 56 2023-05-25 2025-11-26 177 28 ilya.chernikov@jetbrains.com kirill.rakhman@jetbrains.com
KonanConfig.kt
in kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan
 557 3 2020-10-15 2026-01-08 176 34 sergey.bogolepov@jetbrains.com alexander.udalov@jetbrains.com
build.gradle.kts
in prepare/compiler
 381 - 2017-08-02 2025-11-14 166 45 ilya.chernikov@jetbrains.com dmitriy.novozhilov@jetbrain...
IrUtils.kt
in compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/ir
 172 - 2017-05-31 2025-11-17 164 40 mikhael.bogdanov@jetbrains.com igor.chevdar@jetbrains.com
PropertiesProvider.kt
in libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin
 529 - 2022-07-28 2026-01-15 162 29 nataliya.valtman@jetbrains.com artem.kobzar@jetbrains.com
DescriptorRendererImpl.kt
in core/descriptors/src/org/jetbrains/kotlin/renderer
 991 19 2015-06-05 2025-07-21 162 37 valentin@jetbrains.com dmitry.gridin@jetbrains.com
VersionChecker.kt
in plugins/compose/compiler-hosted/src/main/java/androidx/compose/compiler/plugins/kotlin
 110 - 2020-08-25 2025-11-20 159 20 lpf@google.com dmitriy.novozhilov@jetbrain...
DefaultErrorMessagesJvm.java
in compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/diagnostics
 195 2 2015-01-10 2025-01-21 158 28 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
StackValue.java
in compiler/backend/src/org/jetbrains/kotlin/codegen
 421 29 2015-01-08 2025-07-29 153 27 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
FirCallCompleter.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference
 482 7 2019-07-20 2025-12-11 151 18 mikhail.glukhikh@jetbrains.com mikhail.glukhikh@jetbrains.com
CompileServiceImpl.kt
in compiler/daemon/src/org/jetbrains/kotlin/daemon
 1078 21 2015-11-25 2026-01-08 150 34 ilya.chernikov@jetbrains.com wojciech.kalicinski@jetbrai...
AbstractComposeLowering.kt
in plugins/compose/compiler-hosted/src/main/java/androidx/compose/compiler/plugins/kotlin/lower
 1450 45 2020-08-25 2025-12-16 149 27 lpf@google.com ashikov@google.com
Files With Most Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
1094 - 2017-04-26 2026-01-08 912 134 ilya.gorbunov@jetbrains.com sergey.shanshin@jetbrains.com
5885 - 2021-02-02 2026-01-14 406 82 sebastian.sellmair@jetbrain... cristian.garcia-marin@jetbr...
Errors.java
in compiler/frontend/src/org/jetbrains/kotlin/diagnostics
 1152 5 2015-01-10 2025-11-04 550 68 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
DefaultErrorMessages.java
in compiler/frontend/src/org/jetbrains/kotlin/diagnostics/rendering
 1137 5 2015-01-10 2025-11-04 574 65 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
LanguageVersionSettings.kt
in compiler/util/src/org/jetbrains/kotlin/config
 585 5 2016-09-26 2026-01-14 554 63 alexander.udalov@jetbrains.com artem.kobzar@jetbrains.com
FirErrors.kt
in compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics
 1005 - 2021-01-26 2026-01-14 477 60 ilya.kirillov@jetbrains.com alejandro.serrano.mena@jetb...
FirDiagnosticsList.kt
in compiler/fir/checkers/checkers-component-generator/src/org/jetbrains/kotlin/fir/checkers/generator/diagnostics
 2096 - 2021-01-26 2026-01-14 475 60 ilya.kirillov@jetbrains.com alejandro.serrano.mena@jetb...
IrUtils.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util
 1338 9 2018-05-23 2025-12-19 249 55 dmitry.petrov@jetbrains.com milosz.piekutowski@jetbrain...
build.gradle.kts
in libraries/tools/kotlin-gradle-plugin
 537 1 2018-10-29 2026-01-15 219 50 alexey.tsvetkov@jetbrains.com artem.kobzar@jetbrains.com
Fir2IrDeclarationStorage.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 1171 39 2019-04-05 2025-10-28 366 45 mikhail.glukhikh@jetbrains.com mikhail.glukhikh@jetbrains.com
FirErrorsDefaultMessages.kt
in compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics
 3656 2 2021-10-05 2026-01-14 335 45 ilya.chernikov@jetbrains.com alejandro.serrano.mena@jetb...
build.gradle.kts
in prepare/compiler
 381 - 2017-08-02 2025-11-14 166 45 ilya.chernikov@jetbrains.com dmitriy.novozhilov@jetbrain...
Fir2IrVisitor.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 1588 43 2019-03-26 2025-12-08 370 42 dmitry.petrov@jetbrains.com milosz.piekutowski@jetbrain...
LocalDeclarationsLowering.kt
in compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower
 616 23 2017-05-31 2025-12-19 179 42 mikhael.bogdanov@jetbrains.com ivan.kylchik@jetbrains.com
KotlinToJVMBytecodeCompiler.kt
in compiler/cli/src/org/jetbrains/kotlin/cli/jvm/compiler
 398 4 2016-01-13 2025-12-17 218 41 alexander.udalov@jetbrains.com ivan.kochurkin@jetbrains.com
klib.kt
in compiler/ir/serialization.js/src/org/jetbrains/kotlin/ir/backend/js
 595 8 2019-03-21 2026-01-12 202 40 anton.bannykh@jetbrains.com aleksandr.shefer@jetbrains.com
IrUtils.kt
in compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/ir
 172 - 2017-05-31 2025-11-17 164 40 mikhael.bogdanov@jetbrains.com igor.chevdar@jetbrains.com
ConstantExpressionEvaluator.kt
in compiler/frontend/src/org/jetbrains/kotlin/resolve/constants/evaluate
 1101 25 2015-01-10 2025-12-08 135 40 alexander.udalov@jetbrains.com florian.freitag.external@je...
K2JVMCompiler.kt
in compiler/cli/src/org/jetbrains/kotlin/cli/jvm
 264 7 2015-06-18 2026-01-08 202 39 stanislav.erokhin@jetbrains... wojciech.kalicinski@jetbrai...
build.gradle.kts
in compiler/tests-common
 90 - 2017-10-16 2025-11-14 124 39 alexander.udalov@jetbrains.com dmitriy.novozhilov@jetbrain...
KotlinBuiltIns.java
in core/descriptors/src/org/jetbrains/kotlin/builtins
 805 170 2015-01-10 2024-10-23 180 38 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
DeepCopyIrTreeWithSymbols.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util
 44 - 2017-04-21 2025-01-22 145 38 dmitry.petrov@jetbrains.com wojciech.litewka@jetbrains.com
build.gradle.kts
in generators
 159 - 2017-08-02 2025-12-10 127 38 ilya.chernikov@jetbrains.com dmitriy.novozhilov@jetbrain...
CallAndReferenceGenerator.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/generators
 1315 14 2020-03-28 2025-12-08 283 37 jsjeon@google.com milosz.piekutowski@jetbrain...
FirHelpers.kt
in compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/checkers
 873 9 2020-03-27 2026-01-08 215 37 lunyak.kolya@mail.ru nikolay.lunyak@jetbrains.com
DescriptorResolver.java
in compiler/frontend/src/org/jetbrains/kotlin/resolve
 1257 40 2015-01-11 2025-08-04 195 37 alexander.udalov@jetbrains.com alexey.belkov@jetbrains.com
DescriptorRendererImpl.kt
in core/descriptors/src/org/jetbrains/kotlin/renderer
 991 19 2015-06-05 2025-07-21 162 37 valentin@jetbrains.com dmitry.gridin@jetbrains.com
DeclarationsChecker.kt
in compiler/frontend/src/org/jetbrains/kotlin/resolve
 999 9 2015-11-20 2025-11-10 121 37 alexander.udalov@jetbrains.com dmitry.gridin@jetbrains.com
JsLoweringPhases.kt
in compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js
 237 1 2018-12-03 2026-01-15 234 36 roman.artemev@jetbrains.com artem.kobzar@jetbrains.com
BasicExpressionTypingVisitor.java
in compiler/frontend/src/org/jetbrains/kotlin/types/expressions
 1520 72 2014-12-30 2024-06-17 226 36 alexey.tsvetkov@jetbrains.com alejandro.serrano.mena@jetb...
JvmBackendContext.kt
in compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm
 142 1 2016-09-14 2025-07-11 201 36 dmitry.petrov@jetbrains.com ivan.kylchik@jetbrains.com
LazyClassDescriptor.java
in compiler/frontend/src/org/jetbrains/kotlin/resolve/lazy/descriptors
 757 61 2015-01-11 2023-03-23 130 36 alexander.udalov@jetbrains.com pavel.mikhailovskii@jetbrai...
FirDeclarationsResolveTransformer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve
 1313 29 2019-09-05 2025-12-11 358 35 mikhail.glukhikh@jetbrains.com braulioa@google.com
JsIrBackendContext.kt
in compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js
 140 - 2018-03-14 2025-10-14 211 35 zalim.bashorov@jetbrains.com wojciech.litewka@jetbrains.com
DefaultArgumentStubGenerator.kt
in compiler/ir/backend.common/src/org/jetbrains/kotlin/backend/common/lower
 390 8 2017-05-31 2025-12-19 131 35 mikhael.bogdanov@jetbrains.com milosz.piekutowski@jetbrain...
IrDeclarationOrigin.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/declarations
 131 3 2016-09-14 2025-11-08 77 35 dmitry.petrov@jetbrains.com pavel.kunyavskiy@jetbrains.com
FirExpressionsResolveTransformer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve
 1775 55 2019-10-16 2025-12-15 337 34 denis.zharkov@jetbrains.com mikhail.glukhikh@jetbrains.com
Fir2IrConverter.kt
in compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend
 574 6 2019-04-05 2025-11-11 218 34 mikhail.glukhikh@jetbrains.com dmitriy.novozhilov@jetbrain...
GenerationState.kt
in compiler/backend/src/org/jetbrains/kotlin/codegen/state
 103 - 2015-06-23 2025-12-03 199 34 mikhael.bogdanov@jetbrains.com dmitriy.novozhilov@jetbrain...
KonanConfig.kt
in kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan
 557 3 2020-10-15 2026-01-08 176 34 sergey.bogolepov@jetbrains.com alexander.udalov@jetbrains.com
CompileServiceImpl.kt
in compiler/daemon/src/org/jetbrains/kotlin/daemon
 1078 21 2015-11-25 2026-01-08 150 34 ilya.chernikov@jetbrains.com wojciech.kalicinski@jetbrai...
FirNonSuppressibleErrorNames.kt
in compiler/fir/checkers/gen/org/jetbrains/kotlin/fir/analysis/diagnostics
 904 - 2023-07-31 2026-01-14 144 34 alexander.udalov@jetbrains.com alejandro.serrano.mena@jetb...
SymbolTable.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/util
 404 33 2017-05-23 2024-09-03 136 34 dmitry.petrov@jetbrains.com dramaix@google.com
169 - 2023-07-17 2026-01-13 108 34 yahor.berdnikau@jetbrains.com yahor.berdnikau@jetbrains.com
IrToBitcode.kt
in kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm
 2178 60 2020-10-27 2025-12-11 192 33 stanislav.erokhin@jetbrains... aleksei.glushko@jetbrains.com
JvmSymbols.kt
in compiler/ir/backend.jvm/src/org/jetbrains/kotlin/backend/jvm
 936 2 2019-03-22 2025-12-08 131 33 alexander.udalov@jetbrains.com milosz.piekutowski@jetbrain...
IrTypeSystemContext.kt
in compiler/ir/ir.tree/src/org/jetbrains/kotlin/ir/types
 460 11 2019-03-07 2025-12-19 113 33 roman.artemev@jetbrains.com milosz.piekutowski@jetbrain...
KotlinCompileMojoBase.java
in libraries/tools/kotlin-maven-plugin/src/main/java/org/jetbrains/kotlin/maven
 377 16 2012-04-05 2026-01-12 94 33 james.strachan@gmail.com yahor.berdnikau@jetbrains.com
StandardClassIds.kt
in core/compiler.common/src/org/jetbrains/kotlin/name
 266 4 2021-03-03 2025-12-16 72 33 igor.yakovlev@jetbrains.com grigorii.solnyshkin@jetbrai...
ResolveUtils.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve
 670 4 2019-02-11 2025-11-28 307 32 mikhail.glukhikh@jetbrains.com grigorii.solnyshkin@jetbrai...
Files With Least Contributors (Top 50)
Based on the number of unique email addresses found in commits.

See data for all files...

File# lines# unitscreatedlast modified# changes
(days)		# contributorsfirst
contributor		latest
contributor
source0.kt
in analysis/analysis-api-standalone/testData/sessionBuilder/symLinks/src/src2
 1 -
elf.c
in kotlin-native/runtime/src/libbacktrace/c
 3726 - 2021-07-20 2021-07-20 1 1 pavel.kunyavskiy@jetbrains.com pavel.kunyavskiy@jetbrains.com
SingletonInitBenchmark.kt
in kotlin-native/performance/startup/src/main/kotlin/org/jetbrains/startup
 1522 2 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
annotations.xml
in annotations/org/jetbrains/org/objectweb/asm/util
 1496 - 2014-04-23 2014-04-23 1 1 natalia.ukhorskaya@jetbrain... natalia.ukhorskaya@jetbrain...
JsAstMapperVisitor.kt
in js/js.parser/src/org/jetbrains/kotlin/js/parser/antlr
 1204 148 2025-10-08 2026-01-14 15 1 andrii.rublov@jetbrains.com andrii.rublov@jetbrains.com
CastsOptimization.kt
in kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/optimizations
 1171 31 2024-10-11 2025-12-09 8 1 igor.chevdar@jetbrains.com igor.chevdar@jetbrains.com
macho.c
in kotlin-native/runtime/src/libbacktrace/c
 1051 1 2021-07-20 2021-09-14 3 1 pavel.kunyavskiy@jetbrains.com pavel.kunyavskiy@jetbrains.com
annotations.xml
in annotations/org/jetbrains/org/objectweb/asm/commons
 1037 - 2014-04-23 2014-04-23 1 1 natalia.ukhorskaya@jetbrain... natalia.ukhorskaya@jetbrain...
CoreProgressManager.java
in compiler/cli/src/com/intellij/openapi/progress/impl
 860 65 2025-09-16 2025-10-04 2 1 denis.zharkov@jetbrains.com denis.zharkov@jetbrains.com
SpanTest.cpp
in kotlin-native/runtime/src/main/cpp/std_support
 859 2 2022-04-27 2022-04-27 1 1 alexander.shabalin@jetbrain... alexander.shabalin@jetbrain...
convertToModel.kt
in libraries/tools/dukat/src/main/kotlin/org/jetbrains/kotlin/tools/dukat/wasm
 815 2 2023-03-04 2023-05-05 4 1 svyatoslav.kuzmich@jetbrain... svyatoslav.kuzmich@jetbrain...
KtVisitorVoidWithParameter.java
in compiler/psi/psi-api/src/org/jetbrains/kotlin/psi
 791 197 2025-05-28 2025-05-28 1 1 yan.zhulanow@jetbrains.com yan.zhulanow@jetbrains.com
KtPsiFactory.kt
in compiler/psi/psi-api/src/org/jetbrains/kotlin/psi
 757 104 2025-05-28 2025-05-28 1 1 yan.zhulanow@jetbrains.com yan.zhulanow@jetbrains.com
KlibAbiDumpFileMerger.kt
in libraries/tools/abi-validation/abi-tools/src/main/kotlin/org/jetbrains/kotlin/abi/tools/impl/klib
 743 24 2025-09-05 2025-09-05 1 1 sergey.shanshin@jetbrains.com sergey.shanshin@jetbrains.com
cbigint.cpp
in kotlin-native/runtime/src/main/cpp/dtoa
 743 1 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
SourceLazyAnnotationsResolveTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir
 728 140 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ScriptLazyDeclarationResolveForTypeAnnotationsTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir
 656 120 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ScriptLazyTypeAnnotationsTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir
 656 120 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ParcelSerializers.kt
in plugins/parcelize/parcelize-compiler/parcelize.k1/src/org/jetbrains/kotlin/parcelize/serializers
 646 45 2022-05-17 2022-05-17 1 1 dmitriy.novozhilov@jetbrain... dmitriy.novozhilov@jetbrain...
SwitchBenchmark.kt
in kotlin-native/performance/ring/src/main/kotlin/org/jetbrains/ring
 611 14 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
kt14360.kt
in compiler/testData/codegen/bytecodeText/coercionToUnitOptimization
 606 - 2016-10-14 2016-10-14 1 1 dmitry.petrov@jetbrains.com dmitry.petrov@jetbrains.com
annotations.xml
in annotations/org/jetbrains/org/objectweb/asm/tree/analysis
 599 - 2014-04-23 2014-04-23 1 1 natalia.ukhorskaya@jetbrain... natalia.ukhorskaya@jetbrain...
KotlinCompilerClient.kt
in compiler/daemon/daemon-client/src/main/kotlin
 599 10 2023-11-30 2024-10-23 11 1 alexander.likhachev@jetbrai... alexander.likhachev@jetbrai...
select.kt
in plugins/kotlin-dataframe/kotlin-dataframe.k2/src/org/jetbrains/kotlinx/dataframe/plugin/impl/api
 597 5 2025-05-11 2025-10-21 5 1 nikita.klimenko@jetbrains.com nikita.klimenko@jetbrains.com
annotations.xml
in annotations/org/jetbrains/org/objectweb/asm/tree
 593 - 2014-04-23 2014-04-23 1 1 natalia.ukhorskaya@jetbrain... natalia.ukhorskaya@jetbrain...
annotations.xml
in annotations/org/jetbrains/org/objectweb/asm
 554 - 2014-04-23 2014-04-23 1 1 natalia.ukhorskaya@jetbrain... natalia.ukhorskaya@jetbrain...
AbstractKlibLoaderTest.kt
in compiler/util-klib/testFixtures/org/jetbrains/kotlin/library
 547 14 2025-10-20 2025-12-02 2 1 dmitriy.dolovov@jetbrains.com dmitriy.dolovov@jetbrains.com
FirWhenExhaustivenessComputer.kt
in compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers
 544 30 2025-09-05 2025-12-03 3 1 dmitriy.novozhilov@jetbrain... dmitriy.novozhilov@jetbrain...
converter.kt
in kotlin-native/tools/kdumputil/src/kdump/hprof
 544 18 2024-07-01 2024-07-01 1 1 micapolos@google.com micapolos@google.com
K1AbstractExpectActualCompatibilityChecker.kt
in compiler/resolution/src/org/jetbrains/kotlin/resolve/multiplatform
 539 2 2023-10-04 2023-10-04 1 1 nikita.bobko@jetbrains.com nikita.bobko@jetbrains.com
proto
descriptor.proto
in core/metadata/src/google/protobuf
 532 - 2018-03-01 2018-03-01 1 1 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
JavaScriptParser.g4
in js/js.parser/src/main/antlr
 522 - 2025-10-22 2026-01-07 5 1 andrii.rublov@jetbrains.com andrii.rublov@jetbrains.com
SwitchBenchmark.swift
in kotlin-native/performance/KotlinVsSwift/ring/src
 522 15 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
DeltaBlueBenchmark.kt
in kotlin-native/performance/ring/src/main/kotlin/org/jetbrains/ring
 505 38 2022-06-08 2022-06-08 1 1 troels@google.com troels@google.com
zdf-win.kt
in kotlin-native/performance/ring/src/main/kotlin/org/jetbrains/ring
 503 - 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
zdf_win.swift
in kotlin-native/performance/KotlinVsSwift/ring/src
 502 - 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
decompiledTextBuilder.kt
in analysis/decompiled/decompiler-to-psi/src/org/jetbrains/kotlin/analysis/decompiler/psi/text
 493 31 2025-07-16 2025-11-10 7 1 dmitry.gridin@jetbrains.com dmitry.gridin@jetbrains.com
CodeFragmentContextModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
GlobalSourceModuleStateModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
GlobalModuleStateModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ModuleStateModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
GlobalSourceOutOfBlockModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ModuleOutOfBlockModificationLLFirSessionInvalidationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/sessions
 493 69 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
InheritanceBenchmark.kt
in kotlin-native/performance/ring/src/main/kotlin/org/jetbrains/ring
 487 1 2020-10-27 2021-02-26 2 1 stanislav.erokhin@jetbrains... stanislav.erokhin@jetbrains...
ScriptDanglingFileInBlockModificationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/file/structure
 486 95 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
ScriptInBlockModificationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/file/structure
 486 95 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
interpret.kt
in plugins/kotlin-dataframe/kotlin-dataframe.k2/src/org/jetbrains/kotlinx/dataframe/plugin
 485 7 2025-05-11 2025-10-21 8 1 nikita.klimenko@jetbrains.com nikita.klimenko@jetbrains.com
KotlinJavaPsiFacade.java
in compiler/frontend.common.jvm/src/org/jetbrains/kotlin/resolve/jvm
 480 38 2025-03-26 2025-03-26 1 1 alexander.udalov@jetbrains.com alexander.udalov@jetbrains.com
SourceInBlockModificationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/file/structure
 471 92 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com
OutOfContentRootDanglingFileInBlockModificationTestGenerated.java
in analysis/low-level-api-fir/tests-gen/org/jetbrains/kotlin/analysis/low/level/api/fir/file/structure
 471 92 2025-04-23 2025-04-23 1 1 kirill.rakhman@jetbrains.com kirill.rakhman@jetbrains.com