22   StringRef Current = Code;  in emit()  local
24   while (!Current.empty()) {  in emit()
25     size_t Pos = Current.find_first_of("$\n\\");  in emit()
27       OS << Current;  in emit()
28       Current = "";  in emit()
32     OS << Current.substr(0, Pos);  in emit()
33     Current = Current.substr(Pos);  in emit()
35     if (Current.startswith("\n")) {  in emit()
37       Current = Current.drop_front(1);  in emit()
41     if (Current.startswith("\\$") || Current.startswith("\\\\")) {  in emit()
42       OS << Current[1];  in emit()
43       Current = Current.drop_front(2);  in emit()
47     if (Current.startswith("\\")) {  in emit()
48       Current = Current.drop_front(1);  in emit()
52     if (Current.startswith("${")) {  in emit()
53       StringRef StartVar = Current;  in emit()
54       Current = Current.drop_front(2);  in emit()
56       std::tie(Var, Current) = Current.split("}");  in emit()
82     Current = Current.drop_front(1);  in emit()