C++ (Cpp) Preprocessor::getMacroInfo示例

static best_guess tok_type(clang::Preprocessor &pp, const char *macro_name,
                           const clang::Token &t, StringSet *seen) {
    using namespace clang;
    tok::TokenKind k = t.getKind();

    if(k == tok::identifier) {
        IdentifierInfo *ii = t.getIdentifierInfo();
        if(ii && !seen->count(ii->getNameStart()))
            return macro_type(pp, ii->getNameStart(),
                              pp.getMacroInfo(ii), seen);

        return tok_ok;
    }

    if (k == tok::l_paren || k == tok::r_paren || k == tok::amp || k == tok::plus ||
        k == tok::star || k == tok::minus || k == tok::tilde || k == tok::slash ||
        k == tok::percent || k == tok::lessless || k == tok::greatergreater ||
        k == tok::caret || k == tok::pipe || k == tok::exclaim ||
        k == tok::kw_int || k == tok::kw_float || k == tok::kw_double ||
        k == tok::kw_long || k == tok::kw_signed || k == tok::kw_unsigned)

        return tok_ok;

    return tok_invalid;
}