Add length

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.9-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

length/.gitignore

@@ -0,0 +1 @@
+/build

length/MODULE.md

@@ -0,0 +1,3 @@
+# Module distance
+
+Store and convert between units of distance. For example, `1"` --> `2.54 cm`.

length/build.gradle.kts

@@ -0,0 +1,109 @@
+import org.jetbrains.dokka.gradle.DokkaTaskPartial
+import org.jetbrains.kotlin.gradle.targets.js.dsl.ExperimentalWasmDsl
+import java.net.URL
+
+plugins {
+    alias(libs.plugins.kotlin.multiplatform)
+    alias(libs.plugins.android.library)
+
+    alias(libs.plugins.detekt)
+
+    alias(libs.plugins.dokka)
+    id("com.boswelja.publish")
+}
+
+android {
+    namespace = "com.boswelja.length"
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+
+    lint {
+        sarifReport = true
+        htmlReport = false
+    }
+}
+
+repositories {
+    google()
+    mavenCentral()
+}
+
+kotlin {
+    jvmToolchain(21)
+
+    // Android
+    androidTarget {
+        publishLibraryVariants("release")
+    }
+
+    // JVM
+    jvm()
+
+    // Apple
+    iosArm64()
+    iosX64()
+    macosX64()
+    macosArm64()
+    tvosX64()
+    tvosArm64()
+    watchosArm32()
+    watchosArm64()
+
+    // Windows
+    mingwX64()
+
+    // Linux
+    linuxArm64()
+    linuxX64()
+
+    // WASM
+    @OptIn(ExperimentalWasmDsl::class)
+    wasmJs {
+        browser()
+    }
+
+    sourceSets {
+        commonMain {
+            dependencies {
+                implementation(kotlin("stdlib"))
+                implementation(libs.ionspin.bignum)
+            }
+        }
+        commonTest {
+            dependencies {
+                implementation(kotlin("test"))
+            }
+        }
+    }
+}
+
+detekt {
+    buildUponDefaultConfig = true
+    config.setFrom("$rootDir/config/detekt.yml")
+    basePath = rootDir.absolutePath
+}
+
+publish {
+    description = "A Length class that allows you to convert between any unit of length"
+    repositoryUrl = "https://github.com/boswelja/kotlin-datatypes"
+    license = "MIT"
+}
+
+tasks.withType<DokkaTaskPartial>().configureEach {
+    dokkaSourceSets.configureEach {
+        includes.from("MODULE.md")
+        sourceLink {
+            localDirectory.set(projectDir.resolve("src"))
+            remoteUrl.set(URL("${publish.repositoryUrl.get()}/tree/main/${project.name}/src"))
+            remoteLineSuffix.set("#L")
+        }
+    }
+}

length/src/commonMain/kotlin/com/boswelja/length/Length.kt

@@ -0,0 +1,6 @@
+package com.boswelja.length
+
+import kotlin.jvm.JvmInline
+
+@JvmInline
+value class Length(val meter: Double)

length/src/commonMain/kotlin/com/boswelja/length/LengthUnit.kt

@@ -0,0 +1,20 @@
+package com.boswelja.length
+
+interface LengthUnit {
+
+    fun fromMeters(meters: Double): Double
+
+    fun toMeters(unit: Double): Double
+}
+
+enum class MetricLengthUnit : LengthUnit {
+    METER;
+
+    override fun fromMeters(meters: Double): Double {
+        TODO("Not yet implemented")
+    }
+
+    override fun toMeters(unit: Double): Double {
+        TODO("Not yet implemented")
+    }
+}

settings.gradle.kts

@@ -24,6 +24,7 @@ rootProject.name = "kotlin-datatypes"
 include(
     ":bitrate",
     ":capacity",
+    ":length",
     ":percentage",
     ":temperature"
 )