101       STACK_FRAME_TYPE_LIST(INITIALIZE_SINGLETON) frame_(nullptr),  in StackFrameIteratorBase()
128   StackFrame::Type type = frame_->GetCallerState(&state);  in Advance()
131   StackHandlerIterator it(frame_, handler_);  in Advance()
136   frame_ = SingletonFor(type, &state);  in Advance()
150   StackFrame::Type type = frame_->ComputeType(this, &frame_->state_);  in Reframe()
151   frame_ = SingletonFor(type, &frame_->state_);  in Reframe()
160   frame_ = SingletonFor(type, &state);  in Reset()
173   frame_ = SingletonFor(StackFrame::STACK_SWITCH, &state);  in Reset()
368     frame_ = nullptr;  in SafeStackFrameIterator()
455   frame_ = SingletonFor(type, &state);  in SafeStackFrameIterator()
456   if (advance_frame && frame_) Advance();  in SafeStackFrameIterator()
471   StackFrame* last_frame = frame_;  in AdvanceOneFrame()
476     frame_ = nullptr;  in AdvanceOneFrame()
482   StackFrame::Type type = frame_->GetCallerState(&state);  in AdvanceOneFrame()
483   frame_ = SingletonFor(type, &state);  in AdvanceOneFrame()
484   if (!frame_) return;  in AdvanceOneFrame()
487   if (frame_->sp() <= last_sp || frame_->fp() <= last_fp) {  in AdvanceOneFrame()
488     frame_ = nullptr;  in AdvanceOneFrame()
527            external_callback_scope_->scope_address() < frame_->fp()) {  in Advance()
536     if (frame_->is_java_script()) break;  in Advance()
538     if (frame_->is_wasm() || frame_->is_wasm_to_js() ||  in Advance()
539         frame_->is_js_to_wasm()) {  in Advance()
543     if (frame_->is_exit() || frame_->is_builtin_exit()) {  in Advance()
550         frame_->state_.pc_address =  in Advance()