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Name	Size	Permission	Date
cppgc	[ DIR ]	drwxr-xr-x	2026-09-04 11:57
libplatform	[ DIR ]	drwxr-xr-x	2026-09-04 11:57
uv	[ DIR ]	drwxr-xr-x	2026-09-04 11:57
common.gypi	28.72 KB	-rw-r--r--	2026-08-10 10:34
config.gypi	20.71 KB	-rw-r--r--	2026-08-10 10:35
js_native_api.h	32.38 KB	-rw-r--r--	2026-08-10 10:35
js_native_api_types.h	8.14 KB	-rw-r--r--	2026-08-10 10:35
node.h	71.06 KB	-rw-r--r--	2026-08-10 10:35
node_api.h	10.13 KB	-rw-r--r--	2026-08-10 10:35
node_api_types.h	1.88 KB	-rw-r--r--	2026-08-10 10:35
node_buffer.h	3.6 KB	-rw-r--r--	2026-08-10 10:35
node_object_wrap.h	4.2 KB	-rw-r--r--	2026-08-10 10:35
node_version.h	4.14 KB	-rw-r--r--	2026-08-10 10:35
uv.h	71.33 KB	-rw-r--r--	2026-08-10 10:35
v8-array-buffer.h	22.63 KB	-rw-r--r--	2026-08-10 10:35
v8-callbacks.h	19.32 KB	-rw-r--r--	2026-08-10 10:35
v8-container.h	5.82 KB	-rw-r--r--	2026-08-10 10:35
v8-context.h	21.81 KB	-rw-r--r--	2026-08-10 10:35
v8-cppgc.h	5.83 KB	-rw-r--r--	2026-08-10 10:35
v8-data.h	1.88 KB	-rw-r--r--	2026-08-10 10:35
v8-date.h	1.41 KB	-rw-r--r--	2026-08-10 10:35
v8-debug.h	6.6 KB	-rw-r--r--	2026-08-10 10:35
v8-embedder-heap.h	1.62 KB	-rw-r--r--	2026-08-10 10:35
v8-embedder-state-scope.h	1.46 KB	-rw-r--r--	2026-08-10 10:35
v8-exception.h	9.6 KB	-rw-r--r--	2026-08-10 10:35
v8-extension.h	1.7 KB	-rw-r--r--	2026-08-10 10:35
v8-external.h	2.31 KB	-rw-r--r--	2026-08-10 10:35
v8-forward.h	1.65 KB	-rw-r--r--	2026-08-10 10:35
v8-function-callback.h	22.39 KB	-rw-r--r--	2026-08-10 10:35
v8-function.h	4.75 KB	-rw-r--r--	2026-08-10 10:35
v8-handle-base.h	4.81 KB	-rw-r--r--	2026-08-10 10:35
v8-initialization.h	12.38 KB	-rw-r--r--	2026-08-10 10:35
v8-internal.h	73.55 KB	-rw-r--r--	2026-08-10 10:35
v8-isolate.h	68.41 KB	-rw-r--r--	2026-08-10 10:35
v8-json.h	1.66 KB	-rw-r--r--	2026-08-10 10:35
v8-local-handle.h	27.8 KB	-rw-r--r--	2026-08-10 10:35
v8-locker.h	3.86 KB	-rw-r--r--	2026-08-10 10:35
v8-maybe.h	5.26 KB	-rw-r--r--	2026-08-10 10:35
v8-memory-span.h	8.66 KB	-rw-r--r--	2026-08-10 10:35
v8-message.h	6.43 KB	-rw-r--r--	2026-08-10 10:35
v8-microtask-queue.h	4.79 KB	-rw-r--r--	2026-08-10 10:35
v8-microtask.h	861 B	-rw-r--r--	2026-08-10 10:35
v8-object.h	43.08 KB	-rw-r--r--	2026-08-10 10:35
v8-persistent-handle.h	17.07 KB	-rw-r--r--	2026-08-10 10:35
v8-platform.h	55.4 KB	-rw-r--r--	2026-08-10 10:35
v8-primitive-object.h	2.53 KB	-rw-r--r--	2026-08-10 10:35
v8-primitive.h	35.3 KB	-rw-r--r--	2026-08-10 10:35
v8-profiler.h	46 KB	-rw-r--r--	2026-08-10 10:35
v8-promise.h	5.72 KB	-rw-r--r--	2026-08-10 10:35
v8-proxy.h	1.22 KB	-rw-r--r--	2026-08-10 10:35
v8-regexp.h	3.1 KB	-rw-r--r--	2026-08-10 10:35
v8-sandbox.h	7.23 KB	-rw-r--r--	2026-08-10 10:35
v8-script.h	33.74 KB	-rw-r--r--	2026-08-10 10:35
v8-snapshot.h	11.6 KB	-rw-r--r--	2026-08-10 10:35
v8-source-location.h	2.31 KB	-rw-r--r--	2026-08-10 10:35
v8-statistics.h	7.73 KB	-rw-r--r--	2026-08-10 10:35
v8-template.h	39.18 KB	-rw-r--r--	2026-08-10 10:35
v8-traced-handle.h	12.01 KB	-rw-r--r--	2026-08-10 10:35
v8-typed-array.h	11.16 KB	-rw-r--r--	2026-08-10 10:35
v8-unwinder.h	5.09 KB	-rw-r--r--	2026-08-10 10:35
v8-value-serializer.h	10.56 KB	-rw-r--r--	2026-08-10 10:35
v8-value.h	17.22 KB	-rw-r--r--	2026-08-10 10:35
v8-version.h	773 B	-rw-r--r--	2026-08-10 10:35
v8-wasm.h	10.38 KB	-rw-r--r--	2026-08-10 10:35
v8-weak-callback-info.h	2.72 KB	-rw-r--r--	2026-08-10 10:35
v8.h	3.69 KB	-rw-r--r--	2026-08-10 10:35
v8config.h	36.41 KB	-rw-r--r--	2026-08-10 10:35

Rename

// 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 tag for external pointers. Objects with different C++ types should use
 * different values of ExternalPointerTypeTag when using v8::External. The
 * allowed range is 0..V8_EXTERNAL_POINTER_TAG_COUNT - 1. If this is not
 * sufficient, V8_EXTERNAL_POINTER_TAG_COUNT can be increased.
 */
using ExternalPointerTypeTag = uint16_t;

constexpr ExternalPointerTypeTag kExternalPointerTypeTagDefault = 0;

/**
 * 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:
  V8_DEPRECATED("Use the version with the type tag.")
  static Local<External> New(Isolate* isolate, void* value) {
    return New(isolate, value, kExternalPointerTypeTagDefault);
  }
  /**
   * Creates a new External object.
   *
   * \param isolate The isolate for the external object.
   * \param value The C++ pointer value.
   * \param tag The type tag of the external pointer. If type tags are not used
   * in the embedder, the default value `kExternalPointerTypeTagDefault` can be
   * used.
   * \return The new External object.
   */
  static Local<External> New(Isolate* isolate, void* value,
                             ExternalPointerTypeTag tag);
  V8_INLINE static External* Cast(Data* value) {
#ifdef V8_ENABLE_CHECKS
    CheckCast(value);
#endif
    return static_cast<External*>(value);
  }

V8_DEPRECATED("Use the version with the type tag.")
  void* Value() const { return Value(kExternalPointerTypeTagDefault); }

/**
   * Returns the value of the external pointer.
   *
   * \param tag The type tag of the external pointer. If type tags are not used
   * in the embedder, the default value `kExternalPointerTypeTagDefault` can be
   * used.
   * \return The value of the external pointer.
   */
  void* Value(ExternalPointerTypeTag tag) const;

private:
  static void CheckCast(v8::Data* obj);
};

}  // namespace v8

#endif  // INCLUDE_V8_EXTERNAL_H_