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Migrate multiplatform example build script to Kotlin #334

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Nov 13, 2025
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Migrate multiplatform example build script to Kotlin #334

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50 changes: 31 additions & 19 deletions examples/kotlin-multiplatform/build.gradle → ...les/kotlin-multiplatform/build.gradle.kts
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Original file line number Diff line number Diff line change
@@ -1,24 +1,28 @@
import kotlinx.benchmark.gradle.JsBenchmarksExecutor
@file:OptIn(ExperimentalWasmDsl::class)

import kotlinx.benchmark.gradle.*
import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl


plugins {
id 'org.jetbrains.kotlin.multiplatform'
id 'org.jetbrains.kotlin.plugin.allopen' version "2.0.20"
id 'org.jetbrains.kotlinx.benchmark'
kotlin("multiplatform")
kotlin("plugin.allopen") version "2.0.20"
id("org.jetbrains.kotlinx.benchmark")
}

// how to apply plugin to a specific source set?
allOpen {
annotation("org.openjdk.jmh.annotations.State")
}

kotlin {
jvm {
compilations.create('benchmark') { associateWith(compilations.main) }
compilations.create("benchmark") { associateWith(this@jvm.compilations.getByName("main")) }
}
js {
nodejs()
compilations.create("defaultExecutor") { associateWith(compilations.main) }
compilations.create("builtInExecutor") { associateWith(compilations.main) }
val mainCompilation = compilations.getByName("main")
compilations.create("defaultExecutor") { associateWith(mainCompilation) }
compilations.create("builtInExecutor") { associateWith(mainCompilation) }
}
wasmJs { nodejs() }

Expand All @@ -33,17 +37,22 @@ kotlin {
sourceSets {
commonMain {
dependencies {
implementation project(":kotlinx-benchmark-runtime")
implementation(project(":kotlinx-benchmark-runtime"))
}
}

jvmMain {}

wasmJsMain {}

jsMain {
jsDefaultExecutor.dependsOn(it)
jsBuiltInExecutor.dependsOn(it)
val jsMain by getting

getByName("jsDefaultExecutor") {
dependsOn(jsMain)
}

getByName("jsBuiltInExecutor") {
dependsOn(jsMain)
}

nativeMain {}
Expand All @@ -53,15 +62,15 @@ kotlin {
// Configure benchmark
benchmark {
configurations {
main { // --> jvmBenchmark, jsBenchmark, <native target>Benchmark, benchmark
named("main") { // --> jvmBenchmark, jsBenchmark, <native target>Benchmark, benchmark
iterations = 5 // number of iterations
iterationTime = 300
iterationTimeUnit = "ms"
advanced("jvmForks", 3)
advanced("jsUseBridge", true)
}

params {
create("params") {
iterations = 5 // number of iterations
iterationTime = 300
iterationTimeUnit = "ms"
Expand All @@ -70,7 +79,7 @@ benchmark {
param("unused", 6, 9)
}

fast { // --> jvmFastBenchmark, jsFastBenchmark, <native target>FastBenchmark, fastBenchmark
create("fast") { // --> jvmFastBenchmark, jsFastBenchmark, <native target>FastBenchmark, fastBenchmark
include("Common")
exclude("long")
iterations = 5
Expand All @@ -79,7 +88,7 @@ benchmark {
advanced("nativeGCAfterIteration", true)
}

csv {
create("csv") {
include("Common")
exclude("long")
iterations = 1
Expand All @@ -88,7 +97,7 @@ benchmark {
reportFormat = "csv" // csv report format
}

fork {
create("fork") {
include("CommonBenchmark")
iterations = 5
iterationTime = 300
Expand All @@ -100,18 +109,21 @@ benchmark {

// Setup configurations
targets {
// This one matches target name, e.g. 'jvm', 'js',
// This one matches the target name, e.g. 'jvm', 'js',
// and registers its 'main' compilation, so 'jvm' registers 'jvmMain'
register("jvm") {
this as JvmBenchmarkTarget
jmhVersion = "1.37"
}
// This one matches source set name, e.g. 'jvmMain', 'jvmTest', etc
// This one matches the source set name, e.g. 'jvmMain', 'jvmTest', etc
// and register the corresponding compilation (here the 'benchmark' compilation declared in the 'jvm' target)
register("jvmBenchmark") {
this as JvmBenchmarkTarget
jmhVersion = "1.37"
}
register("jsDefaultExecutor")
register("jsBuiltInExecutor") {
this as JsBenchmarkTarget
jsBenchmarksExecutor = JsBenchmarksExecutor.BuiltIn
}
register("wasmJs")
Expand Down