{

enum class TaskKind: uint16_t

{

Worker,

DelayedWorker,

Foreground,

DelayedForeground,

NonNestableForeground,

NonNestableDelayedForeground,

Count

};

struct Options final

{

bool EnableDebugging = false;

bool EnableRemoteDebugging = false;

bool EnableDynamicModuleImports = false;

int DebugPort = 0;

};

struct Statistics final

{

using TaskCounts = std::array<size_t, static_cast<size_t>(TaskKind::Count)>;

void BumpPostedTaskCount(TaskKind kind)

{

++PostedTaskCounts[static_cast<size_t>(kind)];

}

void BumpInvokedTaskCount(TaskKind kind)

{

++InvokedTaskCounts[static_cast<size_t>(kind)];

}

size_t ScriptCount = 0;

size_t ScriptCacheSize = 0;

size_t ModuleCount = 0;

TaskCounts PostedTaskCounts = {};

TaskCounts InvokedTaskCounts = {};

};

static V8Isolate* Create(const StdString& name, const v8::ResourceConstraints* pConstraints, const Options& options);

static size_t GetInstanceCount();

virtual size_t GetMaxHeapSize() = 0;

virtual void SetMaxHeapSize(size_t value) = 0;

virtual double GetHeapSizeSampleInterval() = 0;

virtual void SetHeapSizeSampleInterval(double value) = 0;

virtual size_t GetMaxStackUsage() = 0;

virtual void SetMaxStackUsage(size_t value) = 0;

virtual void AwaitDebuggerAndPause() = 0;

virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code) = 0;

virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, std::vector<uint8_t>& cacheBytes) = 0;

virtual V8ScriptHolder* Compile(const V8DocumentInfo& documentInfo, StdString&& code, V8CacheType cacheType, const std::vector<uint8_t>& cacheBytes, bool& cacheAccepted) = 0;

virtual void GetHeapStatistics(v8::HeapStatistics& heapStatistics) = 0;

virtual Statistics GetStatistics() = 0;

virtual void CollectGarbage(bool exhaustive) = 0;

typedef void CpuProfileCallbackT(const v8::CpuProfile& profile, void* pvArg);

virtual bool BeginCpuProfile(const StdString& name, v8::CpuProfilingMode mode, bool recordSamples) = 0;

virtual bool EndCpuProfile(const StdString& name, CpuProfileCallbackT* pCallback, void* pvArg) = 0;

virtual void CollectCpuProfileSample() = 0;

virtual uint32_t GetCpuProfileSampleInterval() = 0;

virtual void SetCpuProfileSampleInterval(uint32_t value) = 0;

virtual ~V8Isolate() {}