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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 be3// found in the LICENSE file.4 5#ifndef INCLUDE_V8_EXTENSION_H_6#define INCLUDE_V8_EXTENSION_H_7 8#include <memory>9 10#include "v8-local-handle.h"  // NOLINT(build/include_directory)11#include "v8-primitive.h"     // NOLINT(build/include_directory)12#include "v8config.h"         // NOLINT(build/include_directory)13 14namespace v8 {15 16class FunctionTemplate;17 18// --- Extensions ---19 20/**21 * Ignore22 */23class V8_EXPORT Extension {24 public:25  // Note that the strings passed into this constructor must live as long26  // as the Extension itself.27  Extension(const char* name, const char* source = nullptr, int dep_count = 0,28            const char** deps = nullptr, int source_length = -1);29  virtual ~Extension() { delete source_; }30  virtual Local<FunctionTemplate> GetNativeFunctionTemplate(31      Isolate* isolate, Local<String> name) {32    return Local<FunctionTemplate>();33  }34 35  const char* name() const { return name_; }36  size_t source_length() const { return source_length_; }37  const String::ExternalOneByteStringResource* source() const {38    return source_;39  }40  int dependency_count() const { return dep_count_; }41  const char** dependencies() const { return deps_; }42  void set_auto_enable(bool value) { auto_enable_ = value; }43  bool auto_enable() { return auto_enable_; }44 45  // Disallow copying and assigning.46  Extension(const Extension&) = delete;47  void operator=(const Extension&) = delete;48 49 private:50  const char* name_;51  size_t source_length_;  // expected to initialize before source_52  String::ExternalOneByteStringResource* source_;53  int dep_count_;54  const char** deps_;55  bool auto_enable_;56};57 58void V8_EXPORT RegisterExtension(std::unique_ptr<Extension>);59 60}  // namespace v861 62#endif  // INCLUDE_V8_EXTENSION_H_63