Create bare-bones ScriptModule class

third_party/WebKit/Source/bindings/core/v8/ScriptModule.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 ScriptModule_h
+#define ScriptModule_h
+
+#include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/SharedPersistent.h"
+#include "core/CoreExport.h"
+#include "wtf/Allocator.h"
+#include "wtf/text/WTFString.h"
+#include <v8.h>
+
+namespace blink {
+
+class CORE_EXPORT ScriptModule final {
+  DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
+
+ public:
+  static ScriptModule compile(v8::Isolate*,
+                              const String& source,
+                              const String& fileName);
+
+  ScriptModule(const ScriptModule& module) : m_module(module.m_module) {}
+  ~ScriptModule();
+
+  bool instantiate(ScriptState*);
+  void evaluate(ScriptState*);
+
+  bool isNull() const { return m_module->isEmpty(); }
+
+ private:
+  ScriptModule(v8::Isolate*, v8::Local<v8::Module>);
+
+  RefPtr<SharedPersistent<v8::Module>> m_module;
+};
+
+}  // namespace blink
+
+#endif  // ScriptModule_h