1// Copyright 2021 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef INCLUDE_V8_EXTERNAL_H_ 6#define INCLUDE_V8_EXTERNAL_H_ 7 8#include "v8-value.h" // NOLINT(build/include_directory) 9#include "v8config.h" // NOLINT(build/include_directory) 10 11namespace v8 { 12 13class Isolate; 14 15/** 16 * A JavaScript value that wraps a C++ void*. This type of value is mainly used 17 * to associate C++ data structures with JavaScript objects. 18 */ 19class V8_EXPORT External : public Value { 20 public: 21 static Local<External> New(Isolate* isolate, void* value); 22 V8_INLINE static External* Cast(Value* value) { 23#ifdef V8_ENABLE_CHECKS 24 CheckCast(value); 25#endif 26 return static_cast<External*>(value); 27 } 28 29 void* Value() const; 30 31 private: 32 static void CheckCast(v8::Value* obj); 33}; 34 35} // namespace v8 36 37#endif // INCLUDE_V8_EXTERNAL_H_ 38