Update Files

v8/include/v8-external.h

@@ -0,0 +1,37 @@
+// Copyright 2021 the V8 project 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 INCLUDE_V8_EXTERNAL_H_
+#define INCLUDE_V8_EXTERNAL_H_
+
+#include "v8-value.h"  // NOLINT(build/include_directory)
+#include "v8config.h"  // NOLINT(build/include_directory)
+
+namespace v8 {
+
+class Isolate;
+
+/**
+ * A JavaScript value that wraps a C++ void*. This type of value is mainly used
+ * to associate C++ data structures with JavaScript objects.
+ */
+class V8_EXPORT External : public Value {
+ public:
+  static Local<External> New(Isolate* isolate, void* value);
+  V8_INLINE static External* Cast(Value* value) {
+#ifdef V8_ENABLE_CHECKS
+    CheckCast(value);
+#endif
+    return static_cast<External*>(value);
+  }
+
+  void* Value() const;
+
+ private:
+  static void CheckCast(v8::Value* obj);
+};
+
+}  // namespace v8
+
+#endif  // INCLUDE_V8_EXTERNAL_H_