public:

DebugStackTraceIterator(Isolate* isolate, int index);

~DebugStackTraceIterator() override;

bool Done() const override;

void Advance() override;

int GetContextId() const override;

v8::Local<v8::Value> GetReceiver() const override;

v8::Local<v8::Value> GetReturnValue() const override;

v8::Local<v8::String> GetFunctionName() const override;

v8::Local<v8::debug::Script> GetScript() const override;

debug::Location GetSourceLocation() const override;

v8::Local<v8::Function> GetFunction() const override;

std::unique_ptr<v8::debug::ScopeIterator> GetScopeIterator() const override;

bool Restart() override;

v8::MaybeLocal<v8::Value> Evaluate(v8::Local<v8::String> source,

bool throw_on_side_effect) override;

private:

Isolate* isolate_;

StackTraceFrameIterator iterator_;

std::unique_ptr<FrameInspector> frame_inspector_;

int inlined_frame_index_;

bool is_top_frame_;