[WIP Prototype] ES6 https://html.spec.whatwg.org/#fetch-a-single-module-script implementation

third_party/WebKit/Source/bindings/core/v8/ModuleController.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef ModuleController_h
+#define ModuleController_h
+
+#include "bindings/core/v8/ScriptModule.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+#include "wtf/text/WTFString.h"
+#include <memory>
+
+namespace blink {
+
+// ModuleController is responsible for setting up V8 state for various
+// ScriptModule operations.
+// ModuleController is analogus to ScriptController.
+class CORE_EXPORT ModuleController final
+    : public GarbageCollectedFinalized<ModuleController> {
+ public:
+  static ModuleController* create(RefPtr<ScriptState> scriptState) {
+    return new ModuleController(std::move(scriptState));
+  }
+  ~ModuleController();
+  DEFINE_INLINE_TRACE() {}
+
+  // TODO(kouhei): script should be a ScriptSourceCode.
+  ScriptModule compileModule(const String& script, const String& urlStr);
+  bool instantiateModule(ScriptModule);
+  Vector<String> moduleRequestsFromScriptModule(ScriptModule);
+  // TODO(kouhei): move this to V8ScriptRunner.
+  void executeModule(ScriptModule);
+
+ private:
+  explicit ModuleController(RefPtr<ScriptState>);
+
+  RefPtr<ScriptState> m_scriptState;
+};
+
+}  // namespace blink
+
+#endif  // ModuleController_h