wirthi

-import javax.{script => js}
+import org.graalvm.{polyglot => graalvm}

wirthi

-  private def makeJavascriptEngine(): js.ScriptEngine = {
+  private def makeJavascriptEngine(): graalvm.Context = {

wirthi

-    val newEngine = new js.ScriptEngineManager(null).getEngineByName("nashorn")
+    val newEngine = graalvm.Context.newBuilder("js").allowAllAccess(true).build

wirthi

-    newEngine.eval(script)
+    val scriptSource = graalvm.Source.newBuilder("js", script, "setup").buildLiteral
+    newEngine.eval(scriptSource)

wirthi

-    val htmlOrError = engine.invokeFunction(
-      "renderReactServerSide", reactStoreJsonString, cdnOrigin.getOrElse("")).asInstanceOf[String]
+    val htmlOrError = engine.getBindings("js").getMember("renderReactServerSide")
+      .execute(reactStoreJsonString, cdnOrigin.getOrElse("")).asString

wirthi

-      dieIf(!result.isArray, "Not an array")
-      dieIf(!result.hasSlot(0), "No slot 0")
-      dieIf(!result.hasSlot(1), "No slot 1")
-      dieIf(result.hasSlot(2), "Has slot 2")
+      dieIf(!result.hasArrayElements, "Not an array")
+      dieIf(result.getArraySize != 2, "Array of size != 2")
 
-      val elem0 = result.getSlot(0)
-      dieIf(!elem0.isInstanceOf[String], ...)
-      val safeHtml = elem0.asInstanceOf[String]

wirthi

 s/d-cli
...
[talkyard-server] $ test
...
[info] ScalaTest
[info] Run completed in 1 minute, 41 seconds.
[info] Total number of tests run: 396
[info] Suites: completed 37, aborted 0
[info] Tests: succeeded 396, failed 0, canceled 0, ignored 0, pending 12
[info] All tests passed.