84   Lexer(StringRef S) : Buf(S) {}  in Lexer()
87     Buf = Buf.trim();  in lex()
88     if (Buf.empty())  in lex()
91     switch (Buf[0]) {  in lex()
95       size_t End = Buf.find('\n');  in lex()
96       Buf = (End == Buf.npos) ? "" : Buf.drop_front(End);  in lex()
100       Buf = Buf.drop_front();  in lex()
101       if (Buf.consume_front("="))  in lex()
105       Buf = Buf.drop_front();  in lex()
109       std::tie(S, Buf) = Buf.substr(1).split('"');  in lex()
113       size_t End = Buf.find_first_of("=,;\r\n \t\v");  in lex()
114       StringRef Word = Buf.substr(0, End);  in lex()
129       Buf = (End == Buf.npos) ? "" : Buf.drop_front(End);  in lex()
136   StringRef Buf;  member in llvm::object::Lexer