Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

--- kotlin [2023-12-11 16:15:18] – angelegt manfred
+++ kotlin [2025-07-24 19:50:19] (aktuell) – david
@@ Zeile 1: / Zeile 1: @@
+====== Kotlin ======
+===== Kotlin Scripting =====
+  * endung: ''.main.kts'' (siehe [[https://github.com/Kotlin/kotlin-script-examples/blob/master/jvm/main-kts/MainKts.md]])
+  * ausführen:
+    * ''./hello-world.main.kts'' (mit shebang: ''#!/usr/bin/env kotlin'')
+    * ''kotlin hello-world.main.kts''
+    * ''kotlinc -script hello-world.main.kts''
+==== Beispiele ====
+=== JSON Serialization ===
+die annotation ''%%@file:CompilerOptions%%'' unterstützt aktuell noch nicht ''-Xplugin'',
+daher muss man das kotlin script mit ''kotlin -Xplugin'' starten und kann das shebang nicht verwenden
+  > # ./json.main.kts deserialize
+  > kotlin_home="/opt/homebrew/Cellar/kotlin/2.2.0"
+  > kotlin -Xplugin="${kotlin_home}/libexec/lib/kotlin-serialization-compiler-plugin.jar" json.main.kts -- deserialize
+  Data(int=42, bool=true, string=cool, nullable=null)
+  > # ./json.main.kts serialize
+  > kotlin_home="/opt/homebrew/Cellar/kotlin/2.2.0"
+  > kotlin -Xplugin="${kotlin_home}/libexec/lib/kotlin-serialization-compiler-plugin.jar" json.main.kts -- serialize
+  {
+      "int": 42,
+      "bool": true,
+      "string": "cool",
+      "nullable": null
+  }
+<code kotlin json.main.kts>
+#!/usr/bin/env kotlin
+// not yet supported
+// @file:CompilerOptions("-Xplugin=kotlin-serialization-compiler-plugin.jar")
+@file:Repository("https://repo.maven.apache.org/maven2")
+@file:DependsOn(
+    "org.jetbrains.kotlinx:kotlinx-serialization-json:1.9.0"
+)
+import kotlinx.serialization.*
+import kotlinx.serialization.json.*
+val json = Json {
+    ignoreUnknownKeys = true
+    prettyPrint = true
+}
+val command = args
+    .firstOrNull()
+    ?.lowercase()
+    ?.let { Commands.of(it) }
+when (command) {
+    Commands.Deserialize -> deserialize()
+    Commands.Serialize -> serialize()
+    else -> {
+        val name = (this::class.simpleName ?: "*")
+            .lowercase()
+            .replace("_main", "")
+            .replace("_", "-")
+            .let { "${it}.main.kts" }
+        val cmds = Commands.entries
+            .joinToString(separator = "|", prefix = "<", postfix = ">") {
+                it.name.lowercase()
+            }
+        "Usage: $name $cmds"
+    }
+}.also { result ->
+    println(result)
+}
+fun deserialize(): String {
+    val serialized = """
+        {
+            "int": 42,
+            "bool": true,
+            "string": "cool",
+            "nullable": null
+        }
+    """.trimIndent()
+    val deserialized = json.decodeFromString<Data>(serialized)
+    return deserialized.toString()
+}
+fun serialize(): String {
+    val deserialized = Data(
+,
+        true,
+        "cool",
+        null,
+    )
+    val serialized = json.encodeToString(deserialized)
+    return serialized
+}
+enum class Commands {
+    Deserialize,
+    Serialize;
+    companion object {
+        fun of(value: String?) = entries.find { it.name.lowercase() == value?.lowercase() }
+    }
+}
+@Serializable
+data class Data(
+    val int: Int,
+    val bool: Boolean,
+    val string: String,
+    val nullable: String?,
+)
+</code>
+===== Kotlin/JVM =====
+===== Kotlin/Native =====
+==== FreeBSD ====
+Installation:
+  > cd /usr/ports/java/openjdk21 && make clean install clean
+  > git clone git@github.com:JetBrains/kotlin.git ~/kotlin
+  > cd ~/kotlin
+  > vim local.properties
+  kotlin.build.isObsoleteJdkOverrideEnabled=true
+  kotlin.native.enabled=true
+  org.gradle.java.installations.auto-download=false
+  > ./gradlew :kotlin-native:bundle
+Test-Skript:
+  > vim /tmp/hello.kt
+  fun main() {
+      println("Hello Kotlin/Native!")
+  }
+Kompilertest:
+  > ~/kotlin/kotlin-native/dist/bin/kotlinc-native" /tmp/hello.kt -o /tmp/hello
+  > /tmp/hello.kexe