Method simplifyUsing

lib/tokenize.cpp:2924–3497

}

bool Tokenizer::simplifyUsing()
{
    if (!isCPP())
        return false;

    // simplify using N::x; to using x = N::x;
    for (Token* tok = list.front(); tok; tok = tok->next()) {
        if (!Token::Match(tok, "using ::| %name% ::"))
            continue;
        const Token* ns = tok->tokAt(tok->strAt(1) == "::" ? 2 : 1);
        if (ns->isKeyword())
            continue;
        Token* end = tok->tokAt(3);
        while (end && !Token::Match(end, "[;,]")) {
            if (end->str() == "<") // skip template args
                end = end->findClosingBracket();
            else
                end = end->next();
        }
        if (!end)
            continue;
        if (!end->tokAt(-1)->isNameOnly() || end->tokAt(-2)->isLiteral()) // e.g. operator=, operator""sv
            continue;
        tok->insertToken(end->strAt(-1))->insertToken("=")->isSimplifiedTypedef(true);
        if (end->str() == ",") { // comma-separated list
            end->str(";");
            end->insertToken("using");
        }
        tok = end;
    }

    const unsigned int maxReplacementTokens = 1000; // limit the number of tokens we replace

    bool substitute = false;
    ScopeInfo3 scopeInfo;
    ScopeInfo3 *currentScope = &scopeInfo;
    struct Using {
        Using(Token *start, Token *end) : startTok(start), endTok(end) {}
        Token *startTok;
        Token *endTok;
    };
    std::list<Using> usingList;

    ProgressReporter progressReporter(mErrorLogger, mSettings.reportProgress, list.getSourceFilePath(), "Tokenize (using)");

    for (Token *tok = list.front(); tok; tok = tok->next()) {
        progressReporter.report(tok->progressValue());

        if (Settings::terminated())
            return substitute;

        if (Token::Match(tok, "enum class|struct")) {
            Token *bodyStart = tok;
            while (Token::Match(bodyStart, "%name%|:|::|<")) {
                if (bodyStart->str() == "<")
                    bodyStart = bodyStart->findClosingBracket();
                bodyStart = bodyStart ? bodyStart->next() : nullptr;
            }