Root Explorer PHP

Editing: v8-weak-callback-info.h

// 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_WEAK_CALLBACK_INFO_H_
#define INCLUDE_V8_WEAK_CALLBACK_INFO_H_

#include "v8config.h"  // NOLINT(build/include_directory)

namespace v8 {

class Isolate;

namespace api_internal {
V8_EXPORT void InternalFieldOutOfBounds(int index);
}  // namespace api_internal

static const int kInternalFieldsInWeakCallback = 2;
static const int kEmbedderFieldsInWeakCallback = 2;

template <typename T>
class WeakCallbackInfo {
 public:
  using Callback = void (*)(const WeakCallbackInfo<T>& data);

WeakCallbackInfo(Isolate* isolate, T* parameter,
                   void* embedder_fields[kEmbedderFieldsInWeakCallback],
                   Callback* callback)
      : isolate_(isolate), parameter_(parameter), callback_(callback) {
    for (int i = 0; i < kEmbedderFieldsInWeakCallback; ++i) {
      embedder_fields_[i] = embedder_fields[i];
    }
  }

V8_INLINE Isolate* GetIsolate() const { return isolate_; }
  V8_INLINE T* GetParameter() const { return parameter_; }
  V8_INLINE void* GetInternalField(int index) const;

// When first called, the embedder MUST Reset() the Global which triggered the
  // callback. The Global itself is unusable for anything else. No v8 other api
  // calls may be called in the first callback. Should additional work be
  // required, the embedder must set a second pass callback, which will be
  // called after all the initial callbacks are processed.
  // Calling SetSecondPassCallback on the second pass will immediately crash.
  void SetSecondPassCallback(Callback callback) const { *callback_ = callback; }

private:
  Isolate* isolate_;
  T* parameter_;
  Callback* callback_;
  void* embedder_fields_[kEmbedderFieldsInWeakCallback];
};

/**
 * Weakness type for weak handles.
 */
enum class WeakCallbackType {
  /**
   * Passes a user-defined void* parameter back to the callback.
   */
  kParameter,
  /**
   * Passes the first two internal fields of the object back to the callback.
   */
  kInternalFields,
};

template <class T>
void* WeakCallbackInfo<T>::GetInternalField(int index) const {
#ifdef V8_ENABLE_CHECKS
  if (index < 0 || index >= kEmbedderFieldsInWeakCallback) {
    api_internal::InternalFieldOutOfBounds(index);
  }
#endif
  return embedder_fields_[index];
}

}  // namespace v8

#endif  // INCLUDE_V8_WEAK_CALLBACK_INFO_H_

[ CANCEL ]

Name	Type	Actions
.. (Parent Directory)
📄 common.gypi	FILE	[EDIT]
📄 config.gypi	FILE	[EDIT]
📁 cppgc/	DIR
📄 js_native_api.h	FILE	[EDIT]
📄 js_native_api_types.h	FILE	[EDIT]
📁 libplatform/	DIR
📄 node.h	FILE	[EDIT]
📄 node_api.h	FILE	[EDIT]
📄 node_api_types.h	FILE	[EDIT]
📄 node_buffer.h	FILE	[EDIT]
📄 node_object_wrap.h	FILE	[EDIT]
📄 node_version.h	FILE	[EDIT]
📁 uv/	DIR
📄 uv.h	FILE	[EDIT]
📄 v8-array-buffer.h	FILE	[EDIT]
📄 v8-callbacks.h	FILE	[EDIT]
📄 v8-container.h	FILE	[EDIT]
📄 v8-context.h	FILE	[EDIT]
📄 v8-cppgc.h	FILE	[EDIT]
📄 v8-data.h	FILE	[EDIT]
📄 v8-date.h	FILE	[EDIT]
📄 v8-debug.h	FILE	[EDIT]
📄 v8-embedder-heap.h	FILE	[EDIT]
📄 v8-embedder-state-scope.h	FILE	[EDIT]
📄 v8-exception.h	FILE	[EDIT]
📄 v8-extension.h	FILE	[EDIT]
📄 v8-external.h	FILE	[EDIT]
📄 v8-forward.h	FILE	[EDIT]
📄 v8-function-callback.h	FILE	[EDIT]
📄 v8-function.h	FILE	[EDIT]
📄 v8-initialization.h	FILE	[EDIT]
📄 v8-internal.h	FILE	[EDIT]
📄 v8-isolate.h	FILE	[EDIT]
📄 v8-json.h	FILE	[EDIT]
📄 v8-local-handle.h	FILE	[EDIT]
📄 v8-locker.h	FILE	[EDIT]
📄 v8-maybe.h	FILE	[EDIT]
📄 v8-memory-span.h	FILE	[EDIT]
📄 v8-message.h	FILE	[EDIT]
📄 v8-microtask-queue.h	FILE	[EDIT]
📄 v8-microtask.h	FILE	[EDIT]
📄 v8-object.h	FILE	[EDIT]
📄 v8-persistent-handle.h	FILE	[EDIT]
📄 v8-platform.h	FILE	[EDIT]
📄 v8-primitive-object.h	FILE	[EDIT]
📄 v8-primitive.h	FILE	[EDIT]
📄 v8-profiler.h	FILE	[EDIT]
📄 v8-promise.h	FILE	[EDIT]
📄 v8-proxy.h	FILE	[EDIT]
📄 v8-regexp.h	FILE	[EDIT]
📄 v8-script.h	FILE	[EDIT]
📄 v8-snapshot.h	FILE	[EDIT]
📄 v8-statistics.h	FILE	[EDIT]
📄 v8-template.h	FILE	[EDIT]
📄 v8-traced-handle.h	FILE	[EDIT]
📄 v8-typed-array.h	FILE	[EDIT]
📄 v8-unwinder.h	FILE	[EDIT]
📄 v8-value-serializer.h	FILE	[EDIT]
📄 v8-value.h	FILE	[EDIT]
📄 v8-version.h	FILE	[EDIT]
📄 v8-wasm.h	FILE	[EDIT]
📄 v8-weak-callback-info.h	FILE	[EDIT]
📄 v8.h	FILE	[EDIT]
📄 v8config.h	FILE	[EDIT]

[ Root System Explorer ]

Editing: v8-weak-callback-info.h