Introducing transient properties in scripting API

libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptEvaluation.kt

@@ -8,7 +8,10 @@
 package kotlin.script.experimental.jvm
 
 import kotlin.reflect.KClass
-import kotlin.script.experimental.api.*
+import kotlin.script.experimental.api.EvaluationResult
+import kotlin.script.experimental.api.ScriptEvaluationConfiguration
+import kotlin.script.experimental.api.ScriptEvaluationConfigurationKeys
+import kotlin.script.experimental.api.hostConfiguration
 import kotlin.script.experimental.host.ScriptingHostConfiguration
 import kotlin.script.experimental.util.PropertiesCollection
 
@@ -22,10 +25,13 @@ open class JvmScriptEvaluationConfigurationBuilder : PropertiesCollection.Builde
 /**
  * The base classloader to use for script classes loading
  */
-val JvmScriptEvaluationConfigurationKeys.baseClassLoader by PropertiesCollection.key<ClassLoader?> {
-    get(ScriptEvaluationConfiguration.hostConfiguration)?.get(ScriptingHostConfiguration.jvm.baseClassLoader)
-        ?: Thread.currentThread().contextClassLoader
-}
+val JvmScriptEvaluationConfigurationKeys.baseClassLoader by PropertiesCollection.key<ClassLoader?>(
+    {
+        get(ScriptEvaluationConfiguration.hostConfiguration)?.get(ScriptingHostConfiguration.jvm.baseClassLoader)
+            ?: Thread.currentThread().contextClassLoader
+    },
+    isTransient = true
+)
 
 /**
  * Load script dependencies before evaluation, true by default
@@ -38,8 +44,10 @@ val JvmScriptEvaluationConfigurationKeys.loadDependencies by PropertiesCollectio
  */
 val JvmScriptEvaluationConfigurationKeys.mainArguments by PropertiesCollection.key<Array<out String>>()
 
-internal val JvmScriptEvaluationConfigurationKeys.actualClassLoader by PropertiesCollection.key<ClassLoader?>()
+internal val JvmScriptEvaluationConfigurationKeys.actualClassLoader by PropertiesCollection.key<ClassLoader?>(isTransient = true)
 
-internal val JvmScriptEvaluationConfigurationKeys.scriptsInstancesSharingMap by PropertiesCollection.key<MutableMap<KClass<*>, EvaluationResult>>()
+internal val JvmScriptEvaluationConfigurationKeys.scriptsInstancesSharingMap by PropertiesCollection.key<MutableMap<KClass<*>, EvaluationResult>>(
+    isTransient = true
+)
 
 val ScriptEvaluationConfigurationKeys.jvm get() = JvmScriptEvaluationConfigurationBuilder()

libraries/scripting/jvm/src/kotlin/script/experimental/jvm/jvmScriptingHostConfiguration.kt

@@ -9,7 +9,8 @@ import java.io.File
 import java.io.Serializable
 import java.net.URLClassLoader
 import kotlin.reflect.KClass
-import kotlin.script.experimental.api.*
+import kotlin.script.experimental.api.KotlinType
+import kotlin.script.experimental.api.ScriptDependency
 import kotlin.script.experimental.host.*
 import kotlin.script.experimental.jvm.impl.toClassPathOrEmpty
 import kotlin.script.experimental.util.PropertiesCollection
@@ -26,11 +27,14 @@ val JvmScriptingHostConfigurationKeys.javaHome by PropertiesCollection.key<File>
 
 val JvmScriptingHostConfigurationKeys.jdkHome by PropertiesCollection.key<File>()
 
-val JvmScriptingHostConfigurationKeys.baseClassLoader by PropertiesCollection.key<ClassLoader> {
-    get(ScriptingHostConfiguration.configurationDependencies)?.let {
-        URLClassLoader(it.toClassPathOrEmpty().map { f -> f.toURI().toURL() }.toTypedArray())
-    }
-}
+val JvmScriptingHostConfigurationKeys.baseClassLoader by PropertiesCollection.key<ClassLoader>(
+    {
+        get(ScriptingHostConfiguration.configurationDependencies)?.let {
+            URLClassLoader(it.toClassPathOrEmpty().map { f -> f.toURI().toURL() }.toTypedArray())
+        }
+    },
+    isTransient = true
+)
 
 @Suppress("unused")
 val ScriptingHostConfigurationKeys.jvm