53 struct Token {  struct
54   explicit Token(Kind T = Unknown, StringRef S = "") : K(T), Value(S) {}  in Token()  function
92   Token lex() {  in lex()
95       return Token(Eof);  in lex()
99       return Token(Eof);  in lex()
109         return Token(EqualEqual, "==");  in lex()
111       return Token(Equal, "=");  in lex()
114       return Token(Comma, ",");  in lex()
118       return Token(Identifier, S);  in lex()
137       return Token(K, Word);  in lex()
354   Token Tok;
355   std::vector<Token> Stack;