// Copyright 2022 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_CPPGC_HEAP_HANDLE_H_

#define INCLUDE_CPPGC_HEAP_HANDLE_H_

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

namespace cppgc {

namespace internal {

class HeapBase;

class WriteBarrierTypeForCagedHeapPolicy;

class WriteBarrierTypeForNonCagedHeapPolicy;

}  // namespace internal

/**

 * Opaque handle used for additional heap APIs.

 */

class HeapHandle {

 public:

  // Deleted copy ctor to avoid treating the type by value.

  HeapHandle(const HeapHandle&) = delete;

  HeapHandle& operator=(const HeapHandle&) = delete;

 private:

  HeapHandle() = default;

  V8_INLINE bool is_incremental_marking_in_progress() const {

    return is_incremental_marking_in_progress_;

  }

  V8_INLINE bool is_young_generation_enabled() const {

    return is_young_generation_enabled_;

  }

  bool is_incremental_marking_in_progress_ = false;

  bool is_young_generation_enabled_ = false;

  friend class internal::HeapBase;

  friend class internal::WriteBarrierTypeForCagedHeapPolicy;

  friend class internal::WriteBarrierTypeForNonCagedHeapPolicy;

};

}  // namespace cppgc

#endif  // INCLUDE_CPPGC_HEAP_HANDLE_H_