Android Extensions: Support defaultCacheImplementation in Gradle

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/internal/AndroidExtensionsExtension.kt

@@ -19,6 +19,12 @@ package org.jetbrains.kotlin.gradle.internal
 import groovy.lang.Closure
 import org.gradle.util.Configurable
 
+enum class CacheImplementation(val optionName: String) {
+    HASH_MAP("hashMap"),
+    SPARSE_ARRAY("sparseArray"),
+    NONE("none")
+}
+
 open class AndroidExtensionsExtension : Configurable<AndroidExtensionsExtension> {
     private lateinit var onEvaluatedHandler: (AndroidExtensionsExtension) -> Unit
 
@@ -28,6 +34,8 @@ open class AndroidExtensionsExtension : Configurable<AndroidExtensionsExtension>
 
     open var isExperimental: Boolean = false
 
+    open var defaultCacheImplementation: CacheImplementation = CacheImplementation.HASH_MAP
+
     override fun configure(closure: Closure<*>): AndroidExtensionsExtension {
         // ConfigureUtil is not used here to prevent infinite recursion
         closure.resolveStrategy = Closure.DELEGATE_FIRST

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/internal/AndroidSubplugin.kt

@@ -98,7 +98,8 @@ class AndroidSubplugin : KotlinGradleSubplugin<KotlinCompile> {
         val androidExtensionsExtension = project.extensions.getByType(AndroidExtensionsExtension::class.java)
 
         if (androidExtensionsExtension.isExperimental) {
-            return applyExperimental(androidExtension, project, variantData, androidProjectHandler)
+            return applyExperimental(androidExtension, androidExtensionsExtension,
+                    project, variantData, androidProjectHandler)
         }
 
         val sourceSets = androidExtension.sourceSets
@@ -131,6 +132,7 @@ class AndroidSubplugin : KotlinGradleSubplugin<KotlinCompile> {
 
     private fun applyExperimental(
             androidExtension: BaseExtension,
+            androidExtensionsExtension: AndroidExtensionsExtension,
             project: Project,
             variantData: Any?,
             androidProjectHandler: Any?
@@ -141,6 +143,7 @@ class AndroidSubplugin : KotlinGradleSubplugin<KotlinCompile> {
         val pluginOptions = arrayListOf<SubpluginOption>()
 
         pluginOptions += SubpluginOption("experimental", "true")
+        pluginOptions += SubpluginOption("defaultCacheImplementation", androidExtensionsExtension.defaultCacheImplementation.optionName)
 
         val mainSourceSet = androidExtension.sourceSets.getByName("main")
         pluginOptions += SubpluginOption("package", getApplicationPackage(project, mainSourceSet))