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1// Copyright 2022 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_CPPGC_HEAP_HANDLE_H_6#define INCLUDE_CPPGC_HEAP_HANDLE_H_7 8#include "v8config.h"  // NOLINT(build/include_directory)9 10namespace cppgc {11 12namespace internal {13class HeapBase;14class WriteBarrierTypeForCagedHeapPolicy;15class WriteBarrierTypeForNonCagedHeapPolicy;16}  // namespace internal17 18/**19 * Opaque handle used for additional heap APIs.20 */21class HeapHandle {22 public:23  // Deleted copy ctor to avoid treating the type by value.24  HeapHandle(const HeapHandle&) = delete;25  HeapHandle& operator=(const HeapHandle&) = delete;26 27 private:28  HeapHandle() = default;29 30  V8_INLINE bool is_incremental_marking_in_progress() const {31    return is_incremental_marking_in_progress_;32  }33 34  V8_INLINE bool is_young_generation_enabled() const {35    return is_young_generation_enabled_;36  }37 38  bool is_incremental_marking_in_progress_ = false;39  bool is_young_generation_enabled_ = false;40 41  friend class internal::HeapBase;42  friend class internal::WriteBarrierTypeForCagedHeapPolicy;43  friend class internal::WriteBarrierTypeForNonCagedHeapPolicy;44};45 46}  // namespace cppgc47 48#endif  // INCLUDE_CPPGC_HEAP_HANDLE_H_49