Implement property for explicit jvmTarget for script definition...

Apply the property to the default JSR-223 script taking the value from
java.specification.version property, so effectively implementing
jvmTarget detection from current VM.
Also drop enforcing of target 1.8, using common default.
#KT-49329 fixed
#KT-40497 fixed

libraries/scripting/jsr223-test/build.gradle.kts

@@ -10,12 +10,21 @@ val embeddableTestRuntime by configurations.creating {
     }
 }
 
+val testJsr223Runtime by configurations.creating {
+    extendsFrom(configurations["testRuntimeClasspath"])
+}
+
+val testCompilationClasspath by configurations.creating
+
 dependencies {
     testApi(commonDep("junit"))
     testCompileOnly(project(":kotlin-scripting-jvm-host-unshaded"))
     testCompileOnly(project(":compiler:cli"))
     testCompileOnly(project(":core:util.runtime"))
-    
+
+    testApi(projectTests(":compiler:test-infrastructure-utils"))
+    testApi(projectTests(":kotlin-scripting-compiler")) { isTransitive = false }
+
     testRuntimeOnly(project(":kotlin-scripting-jsr223-unshaded"))
     testRuntimeOnly(project(":kotlin-compiler"))
     testRuntimeOnly(project(":kotlin-reflect"))
@@ -24,6 +33,8 @@ dependencies {
     embeddableTestRuntime(project(":kotlin-scripting-jsr223"))
     embeddableTestRuntime(project(":kotlin-scripting-compiler-embeddable"))
     embeddableTestRuntime(testSourceSet.output)
+
+    testCompilationClasspath(kotlinStdlib())
 }
 
 sourceSets {
@@ -35,7 +46,16 @@ tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
     kotlinOptions.freeCompilerArgs += "-Xallow-kotlin-package"
 }
 
-projectTest(parallel = true)
+projectTest(parallel = true) {
+    dependsOn(":dist")
+    workingDir = rootDir
+    val testRuntimeProvider = project.provider { testJsr223Runtime.asPath }
+    val testCompilationClasspathProvider = project.provider { testCompilationClasspath.asPath }
+    doFirst {
+        systemProperty("testJsr223RuntimeClasspath", testRuntimeProvider.get())
+        systemProperty("testCompilationClasspath", testCompilationClasspathProvider.get())
+    }
+}
 
 projectTest(taskName = "embeddableTest", parallel = true) {
     workingDir = rootDir

libraries/scripting/jsr223-test/test/kotlin/script/experimental/jsr223/test/KotlinJsr223ScriptEngineIT.kt

@@ -6,11 +6,18 @@
 package kotlin.script.experimental.jsr223.test
 
 import org.jetbrains.kotlin.cli.common.environment.setIdeaIoUseFallback
+import org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
 import org.jetbrains.kotlin.config.KotlinCompilerVersion
+import org.jetbrains.kotlin.scripting.compiler.plugin.runAndCheckResults
+import org.jetbrains.kotlin.test.util.KtTestUtil
+import org.jetbrains.kotlin.utils.PathUtil
 import org.junit.Assert
 import org.junit.Ignore
 import org.junit.Test
+import java.io.File
 import java.lang.management.ManagementFactory
+import java.nio.file.Files.createTempDirectory
+import java.nio.file.Files.createTempFile
 import javax.script.*
 import kotlin.script.experimental.jvmhost.jsr223.KotlinJsr223ScriptEngineImpl
 
@@ -376,6 +383,55 @@ obj
             else System.setProperty(KOTLIN_JSR223_RESOLVE_FROM_CLASSLOADER_PROPERTY, prevProp)
         }
     }
+
+    @Test
+    fun testInliningInJdk171() {
+        val jdk17 = try {
+            KtTestUtil.getJdk17Home()
+        } catch (_: NoClassDefFoundError) {
+            println("IGNORED: Test infrastructure doesn't work yet with embeddable compiler")
+            return
+        }
+        val javaExe = if (System.getProperty("os.name").contains("windows", ignoreCase = true)) "java.exe" else "java"
+        val runtime = File(jdk17, "bin" + File.separator + javaExe)
+
+        val tempDir = createTempDirectory(KotlinJsr223ScriptEngineIT::class.simpleName!!)
+        try {
+            val outJar = createTempFile(tempDir, "inlining17", ".jar").toFile()
+            val compileCp = System.getProperty("testCompilationClasspath")!!.split(File.pathSeparator).map(::File)
+            Assert.assertTrue(
+                "Expecting \"testCompilationClasspath\" property to contain stdlib jar:\n$compileCp",
+                compileCp.any { it.name.startsWith("kotlin-stdlib") }
+            )
+            val paths = PathUtil.kotlinPathsForDistDirectory
+            runAndCheckResults(
+                listOf(
+                    runtime.absolutePath,
+                    "-cp", paths.compilerClasspath.joinToString(File.pathSeparator),
+                    K2JVMCompiler::class.java.name,
+                    "-no-stdlib",
+                    "-cp", compileCp.joinToString(File.pathSeparator) { it.path },
+                    "-d", outJar.absolutePath,
+                    "-jvm-target", "17",
+                    "libraries/scripting/jsr223-test/testData/testJsr223Inlining.kt"
+                ),
+                additionalEnvVars = listOf("JAVA_HOME" to jdk17.absolutePath)
+            )
+
+            val runtimeCp = System.getProperty("testJsr223RuntimeClasspath")!!.split(File.pathSeparator).map(::File) + outJar
+            Assert.assertTrue(
+                "Expecting \"testJsr223RuntimeClasspath\" property to contain JSR223 jar:\n$runtimeCp",
+                runtimeCp.any { it.name.startsWith("kotlin-scripting-jsr223") }
+            )
+
+            runAndCheckResults(
+                listOf(runtime.absolutePath, "-cp", runtimeCp.joinToString(File.pathSeparator) { it.path }, "TestJsr223InliningKt"),
+                listOf("OK")
+            )
+        } finally {
+            tempDir.toFile().deleteRecursively()
+        }
+    }
 }
 
 fun assertThrows(exceptionClass: Class<*>, body: () -> Unit) {

libraries/scripting/jsr223-test/testData/testJsr223Inlining.kt

@@ -0,0 +1,9 @@
+
+import javax.script.*
+
+inline fun<T> foo(body: () -> T): T = body()
+
+fun main() {
+    val scriptEngine = ScriptEngineManager().getEngineByExtension("kts")!!
+    scriptEngine.eval("println(foo { \"OK\" })")
+}

libraries/scripting/jsr223/src/kotlin/script/experimental/jsr223/KotlinJsr223DefaultScript.kt

@@ -14,6 +14,8 @@ import kotlin.script.experimental.api.ScriptCompilationConfiguration
 import kotlin.script.experimental.api.ScriptEvaluationConfiguration
 import kotlin.script.experimental.api.refineConfiguration
 import kotlin.script.experimental.api.refineConfigurationBeforeEvaluate
+import kotlin.script.experimental.jvm.jvm
+import kotlin.script.experimental.jvm.jvmTarget
 import kotlin.script.experimental.jvmhost.jsr223.configureProvidedPropertiesFromJsr223Context
 import kotlin.script.experimental.jvmhost.jsr223.importAllBindings
 import kotlin.script.experimental.jvmhost.jsr223.jsr223
@@ -66,6 +68,11 @@ object KotlinJsr223DefaultScriptCompilationConfiguration : ScriptCompilationConf
         jsr223 {
             importAllBindings(true)
         }
+        jvm {
+            System.getProperty("java.specification.version")?.let {
+                jvmTarget(it)
+            }
+        }
     }
 )
 

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

@@ -101,6 +101,8 @@ val JvmScriptCompilationConfigurationKeys.jdkHome
             getSourceProperties = { get(ScriptCompilationConfiguration.hostConfiguration) }
         )
 
+val JvmScriptCompilationConfigurationKeys.jvmTarget by PropertiesCollection.key<String>()
+
 @Suppress("unused")
 val ScriptCompilationConfigurationKeys.jvm
     get() = JvmScriptCompilationConfigurationBuilder()

plugins/scripting/scripting-compiler/src/org/jetbrains/kotlin/scripting/compiler/plugin/impl/compilationContext.kt

@@ -48,11 +48,8 @@ import kotlin.script.experimental.api.ScriptCompilationConfiguration
 import kotlin.script.experimental.api.compilerOptions
 import kotlin.script.experimental.api.dependencies
 import kotlin.script.experimental.host.ScriptingHostConfiguration
-import kotlin.script.experimental.jvm.JvmDependency
-import kotlin.script.experimental.jvm.jdkHome
-import kotlin.script.experimental.jvm.jvm
+import kotlin.script.experimental.jvm.*
 import kotlin.script.experimental.jvm.util.KotlinJars
-import kotlin.script.experimental.jvm.withUpdatedClasspath
 
 const val SCRIPT_BASE_COMPILER_ARGUMENTS_PROPERTY = "kotlin.script.base.compiler.arguments"
 
@@ -233,8 +230,17 @@ private fun createInitialCompilerConfiguration(
 
         setupJvmSpecificArguments(baseArguments)
 
-        // Default value differs from the argument's default (see #KT-29405 and #KT-29319)
-        put(JVMConfigurationKeys.JVM_TARGET, JvmTarget.JVM_1_8)
+        val definedTarget = scriptCompilationConfiguration[ScriptCompilationConfiguration.jvm.jvmTarget]
+        if (definedTarget != null) {
+            val target = JvmTarget.values().find { it.description == definedTarget }
+            if (target == null) {
+                messageCollector.report(
+                    CompilerMessageSeverity.STRONG_WARNING, "Unknown JVM target \"$definedTarget\", using default"
+                )
+            } else {
+                put(JVMConfigurationKeys.JVM_TARGET, target)
+            }
+        }
 
         val jdkHomeFromConfigurations = scriptCompilationConfiguration[ScriptCompilationConfiguration.jvm.jdkHome]
             // TODO: check if this is redundant and/or incorrect since the default is now taken from the host configuration anyway (the one linked to the compilation config)