Kotlin Scripting Knowledge

kotlin-scripting-knowledge.md

Links

Proposal Discussion

How does the IntelliJ Scripting Console index IntelliJ JARs automatically?

The dependencyResolver of StandardIdeScriptDefinition checks whether the "RootType" is IdeConsoleRootType, in that case it adds the IDEs + Kotlin's JARs (detected via URLClassLoader, mainly) to the classpath.

See here: https://github.com/JetBrains/kotlin/blob/c248dd29c21699ab22ff6fd7a77f1395c9b58632/idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/ScriptDefinitionsManager.kt#L319

JAR detection from the classloader:

https://github.com/JetBrains/kotlin/blob/c248dd29c21699ab22ff6fd7a77f1395c9b58632/libraries/scripting/jvm/src/kotlin/script/experimental/jvm/util/jvmClasspathUtil.kt#L118

Important Classes

• ScriptDefinitionsProvider
• KotlinScriptDefinition
• (ScriptDefinitionContributor outdated??), provide list of KotlinScriptDefinition, is an extension point

interface ScriptDefinitionContributor {
    val id: String

    fun getDefinitions(): List<KotlinScriptDefinition>
    fun isReady() = true

    companion object {
        val EP_NAME: ExtensionPointName<ScriptDefinitionContributor> =
            ExtensionPointName.create<ScriptDefinitionContributor>("org.jetbrains.kotlin.scriptDefinitionContributor")

        inline fun <reified T> find(project: Project) =
            Extensions.getArea(project).getExtensionPoint(ScriptDefinitionContributor.EP_NAME).extensions.filterIsInstance<T>().firstOrNull()
    }

}

Source