feat(graalvm): synthetic modules

feat(graalvm-js): add new `graalvm-js` module for graaljs integration
feat(graalvm-js): initial structure and api for elide's import router
feat(graalvm-ts): move js realm patcher to `graalvm-js` module
feat(graalvm): initialize javascript when plugin is added
chore: reintroduce graalvm/graaljs modules and pins

Signed-off-by: Sam Gammon <sam@elide.dev>

.gitmodules

@@ -31,4 +31,12 @@
 	path = third_party/madler/zlib
 	url = git@github.com:madler/zlib.git
 	ignore = dirty
-
+	shallow = true
+[submodule "graalvm"]
+	path = third_party/oracle/graalvm/graal
+	url = git@github.com:oracle/graal.git
+	shallow = true
+[submodule "graaljs"]
+	path = third_party/oracle/graalvm/graaljs
+	url = git@github.com:elide-dev/graaljs.git
+	shallow = true

packages/cli/build.gradle.kts

@@ -1963,3 +1963,15 @@ listOf(
     }
   }
 }
+
+val (jsGroup, jsName) = libs.graalvm.js.language.get().let {
+  it.group to it.name
+}
+configurations.all {
+  resolutionStrategy.dependencySubstitution {
+    substitute(module("${jsGroup}:${jsName}")).apply {
+      using(project(":packages:graalvm-js"))
+      because("Uses Elide's patched version of GraalJs")
+    }
+  }
+}

packages/graalvm-js/api/graalvm-js.api

@@ -0,0 +1,5 @@
+public class elide/runtime/lang/javascript/JSRealmPatcher {
+	public fun <init> ()V
+	public static fun setModuleLoader (Lcom/oracle/truffle/js/runtime/JSRealm;Lcom/oracle/truffle/js/runtime/objects/JSModuleLoader;)V
+}
+

packages/graalvm-js/build.gradle.kts

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2024 Elide Technologies, Inc.
+ *
+ * Licensed under the MIT license (the "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   https://opensource.org/license/mit/
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
+ * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under the License.
+ */
+
+import elide.internal.conventions.kotlin.KotlinTarget
+import elide.internal.conventions.publishing.publish
+
+plugins {
+  alias(libs.plugins.micronaut.graalvm)
+
+  kotlin("jvm")
+  kotlin("kapt")
+  kotlin("plugin.allopen")
+
+  alias(libs.plugins.elide.conventions)
+}
+
+elide {
+  publishing {
+    id = "graalvm-js"
+    name = "Elide JS integration package for GraalVM"
+    description = "Integration package with GraalVM, Elide, and JS."
+
+    publish("jvm") {
+      from(components["kotlin"])
+    }
+  }
+
+  kotlin {
+    target = KotlinTarget.JVM
+    explicitApi = true
+  }
+}
+
+val gvmJarsRoot = rootProject.layout.projectDirectory.dir("third_party/oracle")
+
+val patchedLibs = files(
+  gvmJarsRoot.file("graaljs.jar"),
+)
+
+val patchedDependencies: Configuration by configurations.creating {
+  isCanBeResolved = true
+}
+
+dependencies {
+  api(projects.packages.engine)
+  api(patchedLibs)
+  patchedDependencies(patchedLibs)
+}
+
+configurations.all {
+  libs.graalvm.js.language.get().let {
+    exclude(group = it.group, module = it.name)
+  }
+}

packages/graalvm-ts/src/main/java/elide/runtime/lang/typescript/JSRealmPatcher.java → packages/graalvm-js/src/main/java/elide/runtime/lang/javascript/JSRealmPatcher.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024 Elide Technologies, Inc.
+ * Copyright (c) 2024-2025 Elide Technologies, Inc.
  *
  * Licensed under the MIT license (the "License"); you may not use this file except in compliance
  * with the License. You may obtain a copy of the License at
@@ -10,18 +10,19 @@
  * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  * License for the specific language governing permissions and limitations under the License.
  */
-package elide.runtime.lang.typescript;
+package elide.runtime.lang.javascript;
 
 import com.oracle.truffle.js.runtime.JSRealm;
+import com.oracle.truffle.js.runtime.objects.JSModuleLoader;
 import java.lang.reflect.Field;
 
-class JSRealmPatcher {
-  public static void setTSModuleLoader(JSRealm jsRealm, TypeScriptModuleLoader newModuleLoader) {
+public class JSRealmPatcher {
+  public static void setModuleLoader(JSRealm jsRealm, JSModuleLoader newModuleLoader) {
     try {
       Field moduleLoaderField = JSRealm.class.getDeclaredField("moduleLoader");
       moduleLoaderField.setAccessible(true);
       Object moduleLoader = moduleLoaderField.get(jsRealm);
-      if (!(moduleLoader instanceof TypeScriptModuleLoader)) {
+      if (moduleLoader != newModuleLoader) {
         moduleLoaderField.set(jsRealm, newModuleLoader);
       }
     } catch (NoSuchFieldException | IllegalAccessException e) {

packages/graalvm-js/src/main/kotlin/elide/runtime/lang/javascript/ElideJsModuleRouter.kt

@@ -0,0 +1,27 @@
+package elide.runtime.lang.javascript
+
+import com.oracle.truffle.js.runtime.JSEngine
+import com.oracle.truffle.js.runtime.JSModuleLoaderFactory
+import com.oracle.truffle.js.runtime.JSRealm
+import com.oracle.truffle.js.runtime.objects.JSModuleLoader
+import java.util.*
+import kotlinx.atomicfu.atomic
+
+/**
+ * ## Elide JavaScript Module Router
+ */
+public object ElideJsModuleRouter : JSModuleLoaderFactory {
+  private val initialized = atomic(false)
+
+  @JvmStatic public fun install() {
+    if (!initialized.getAndSet(true)) {
+      JSEngine.setModuleLoaderFactory(this)
+    }
+  }
+
+  override fun createLoader(realm: JSRealm, defaultFactory: JSModuleLoaderFactory): Optional<JSModuleLoader> =
+    defaultFactory.createLoader(
+      realm,
+      defaultFactory
+    )
+}

packages/graalvm-js/src/main/kotlin/elide/runtime/lang/javascript/JavaScriptLang.kt

@@ -0,0 +1,18 @@
+package elide.runtime.lang.javascript
+
+import kotlinx.atomicfu.atomic
+
+/**
+ * ## JavaScript Language Utilities
+ *
+ * Static utilities for internal engine use.
+ */
+public object JavaScriptLang {
+  private val initialized = atomic(false)
+
+  public fun initialize() {
+    if (initialized.compareAndSet(expect = false, update = true)) {
+      ElideJsModuleRouter.install()
+    }
+  }
+}

packages/graalvm-ts/build.gradle.kts

@@ -49,9 +49,13 @@ elide {
 dependencies {
   kapt(libs.graalvm.truffle.processor)
   api(projects.packages.engine)
+  api(projects.packages.graalvmJs)
+  api(libs.graalvm.truffle.api)
   implementation(libs.commons.io)
   implementation(libs.kotlinx.coroutines.core)
   implementation(libs.graalvm.js.language)
+  implementation(libs.graalvm.shadowed.icu4j)
+  implementation(libs.graalvm.regex)
 
   // Testing
   testImplementation(projects.packages.test)
@@ -71,3 +75,16 @@ tasks {
     systemProperty("elide.test", "true")
   }
 }
+
+val (jsGroup, jsName) = libs.graalvm.js.language.get()
+  .let {
+    it.group to it.name
+  }
+configurations.all {
+  resolutionStrategy.dependencySubstitution {
+    substitute(module("$jsGroup:$jsName")).apply {
+      using(project(":packages:graalvm-js"))
+      because("Uses Elide's patched version of GraalJs")
+    }
+  }
+}

packages/graalvm-ts/src/main/java/elide/runtime/lang/typescript/TypeScriptLanguage.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2024 Elide Technologies, Inc.
+ * Copyright (c) 2024-2025 Elide Technologies, Inc.
  *
  * Licensed under the MIT license (the "License"); you may not use this file except in compliance
  * with the License. You may obtain a copy of the License at
@@ -23,6 +23,7 @@
 import com.oracle.truffle.js.lang.JavaScriptLanguage;
 import com.oracle.truffle.js.runtime.JSEngine;
 import com.oracle.truffle.js.runtime.JSRealm;
+import elide.runtime.lang.javascript.JSRealmPatcher;
 import java.util.List;
 import java.util.concurrent.atomic.AtomicBoolean;
 import org.graalvm.polyglot.SandboxPolicy;
@@ -84,7 +85,7 @@ protected JSRealm createContext(Env currentEnv) {
     }
     var ctx = JSEngine.createJSContext(js, jsEnv);
     var realm = ctx.createRealm(jsEnv);
-    JSRealmPatcher.setTSModuleLoader(realm, new TypeScriptModuleLoader(realm, tsCompiler));
+    JSRealmPatcher.setModuleLoader(realm, new TypeScriptModuleLoader(realm, tsCompiler));
     return realm;
   }
 
@@ -118,7 +119,7 @@ protected TSRootNode(TruffleLanguage<?> language, RootNode delegate) {
     @TruffleBoundary
     private void setModuleLoader() {
       JSRealm realm = JSRealm.get(delegate);
-      JSRealmPatcher.setTSModuleLoader(realm, new TypeScriptModuleLoader(realm, tsCompiler));
+      JSRealmPatcher.setModuleLoader(realm, new TypeScriptModuleLoader(realm, tsCompiler));
     }
 
     @Override

packages/graalvm/build.gradle.kts

@@ -669,3 +669,15 @@ if (enableBenchmarks) afterEvaluate {
     }.toString())
   }
 }
+
+val (jsGroup, jsName) = libs.graalvm.js.language.get().let {
+  it.group to it.name
+}
+configurations.all {
+  resolutionStrategy.dependencySubstitution {
+    substitute(module("${jsGroup}:${jsName}")).apply {
+      using(project(":packages:graalvm-js"))
+      because("Uses Elide's patched version of GraalJs")
+    }
+  }
+}

packages/graalvm/src/main/kotlin/elide/runtime/plugins/js/JavaScript.kt

@@ -12,6 +12,7 @@
  */
 package elide.runtime.plugins.js
 
+import com.oracle.truffle.js.runtime.JSContextOptions
 import org.graalvm.polyglot.Engine
 import org.graalvm.polyglot.Source
 import java.util.concurrent.atomic.AtomicBoolean
@@ -27,6 +28,7 @@ import elide.runtime.core.extensions.disableOptions
 import elide.runtime.core.extensions.enableOptions
 import elide.runtime.core.extensions.setOptions
 import elide.runtime.core.plugin
+import elide.runtime.lang.javascript.JavaScriptLang
 import elide.runtime.plugins.AbstractLanguagePlugin
 import elide.runtime.plugins.AbstractLanguagePlugin.LanguagePluginManifest
 import elide.runtime.plugins.env.Environment
@@ -156,6 +158,7 @@ import elide.runtime.plugins.js.JavaScriptVersion.*
       "js.unhandled-rejections" to UNHANDLED_REJECTIONS,
       // Experimental:
       "js.charset" to config.charset.name(),
+      "js.module-loader-factory" to JSContextOptions.ModuleLoaderFactoryMode.HANDLER.toString(),
     )
 
     setOptions(
@@ -207,6 +210,7 @@ import elide.runtime.plugins.js.JavaScriptVersion.*
     override val key: Key<JavaScript> = Key(JS_PLUGIN_ID)
 
     override fun install(scope: InstallationScope, configuration: JavaScriptConfig.() -> Unit): JavaScript {
+      JavaScriptLang.initialize()
       configureLanguageSupport(scope)
 
       // resolve the env plugin (if present, otherwise ignore silently)

settings.gradle.kts

@@ -217,6 +217,7 @@ include(
   ":packages:graalvm",
   ":packages:graalvm-java",
   ":packages:graalvm-jvm",
+  ":packages:graalvm-js",
   ":packages:graalvm-kt",
   ":packages:graalvm-llvm",
   ":packages:graalvm-py",