[Gradle] Implement KotlinTargetSideEffect.extensionPoint

KT-61634

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/kotlinTargetPresets.kt

@@ -9,6 +9,7 @@ import org.gradle.api.Project
 import org.jetbrains.kotlin.gradle.DeprecatedTargetPresetApi
 import org.jetbrains.kotlin.gradle.plugin.*
 import org.jetbrains.kotlin.gradle.targets.android.internal.InternalKotlinTargetPreset
+import org.jetbrains.kotlin.gradle.targets.runKotlinTargetSideEffects
 
 @DeprecatedTargetPresetApi
 abstract class KotlinOnlyTargetPreset<R : KotlinOnlyTarget<T>, T : KotlinCompilation<*>>(
@@ -42,7 +43,7 @@ abstract class KotlinOnlyTargetPreset<R : KotlinOnlyTarget<T>, T : KotlinCompila
         }
 
         createKotlinTargetConfigurator().configureTarget(result)
-
+        result.runKotlinTargetSideEffects()
         return result
     }
 

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/targets/KotlinTargetSideEffect.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.gradle.targets
+
+import org.jetbrains.kotlin.gradle.plugin.KotlinGradlePluginExtensionPoint
+import org.jetbrains.kotlin.gradle.plugin.KotlinTarget
+
+/**
+ * Will be invoked once a new [KotlinTarget] was created.
+ * See [registerKotlinPluginExtensions] to register an effect.
+ *
+ * ### Example
+ * ```kotlin
+ * internal val KotlinNativeTargetLoggingSideEffect = KotlinTargetSideEffect<KotlinNativeTarget> {
+ *     project.logger.debug(konanTarget.name)
+ * }
+ * ```
+ *
+ * Will print the name of a konanTarget once a new KotlinNativeTarget was created
+ */
+internal fun interface KotlinTargetSideEffect {
+    operator fun invoke(target: KotlinTarget)
+
+    companion object {
+        val extensionPoint = KotlinGradlePluginExtensionPoint<KotlinTargetSideEffect>()
+    }
+}
+
+/**
+ * see [KotlinTargetSideEffect]
+ */
+internal inline fun <reified T : KotlinTarget> KotlinTargetSideEffect(crossinline effect: (T) -> Unit) = KotlinTargetSideEffect { target ->
+    if (target is T) effect(target)
+}
+
+
+internal fun KotlinTarget.runKotlinTargetSideEffects() {
+    KotlinTargetSideEffect.extensionPoint[project].forEach { effect ->
+        effect(this)
+    }
+}