testing.h

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// 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_CPPGC_TESTING_H_
#define INCLUDE_CPPGC_TESTING_H_
 
#include "cppgc/common.h"
#include "cppgc/macros.h"
#include "v8config.h"  // NOLINT(build/include_directory)
 
namespace cppgc {
 
class HeapHandle;
 
namespace testing {
 
class V8_EXPORT V8_NODISCARD OverrideEmbedderStackStateScope final {
  CPPGC_STACK_ALLOCATED();
 
 public:
  explicit OverrideEmbedderStackStateScope(HeapHandle& heap_handle,
                                           EmbedderStackState state);
  ~OverrideEmbedderStackStateScope();
 
  OverrideEmbedderStackStateScope(const OverrideEmbedderStackStateScope&) =
      delete;
  OverrideEmbedderStackStateScope& operator=(
      const OverrideEmbedderStackStateScope&) = delete;
 
 private:
  HeapHandle& heap_handle_;
};
 
class V8_EXPORT StandaloneTestingHeap final {
 public:
  explicit StandaloneTestingHeap(HeapHandle&);
 
  void StartGarbageCollection();
 
  bool PerformMarkingStep(EmbedderStackState stack_state);
 
  void FinalizeGarbageCollection(EmbedderStackState stack_state);
 
  void ToggleMainThreadMarking(bool should_mark);
 
  void ForceCompactionForNextGarbageCollection();
 
 private:
  HeapHandle& heap_handle_;
};
 
V8_EXPORT bool IsHeapObjectOld(void*);
 
}  // namespace testing
}  // namespace cppgc
 
#endif  // INCLUDE_CPPGC_TESTING_H_