Method findClosingBracket

lib/token.cpp:876–933

}

const Token * Token::findClosingBracket() const
{
    if (mStr != "<")
        return nullptr;

    if (!mPrevious)
        return nullptr;

    if (!(mPrevious->isName() || Token::simpleMatch(mPrevious, "]") ||
          Token::Match(mPrevious->previous(), "operator %op% <") ||
          Token::Match(mPrevious->tokAt(-2), "operator [([] [)]] <")))
        return nullptr;

    const Token *closing = nullptr;
    const bool templateParameter(strAt(-1) == "template");
    std::set<std::string> templateParameters;

    bool isDecl = true;
    for (const Token *prev = previous(); prev; prev = prev->previous()) {
        if (prev->str() == "=")
            isDecl = false;
        if (Token::simpleMatch(prev, "template <"))
            isDecl = true;
        if (Token::Match(prev, "[;{}]"))
            break;
    }

    unsigned int depth = 0;
    for (closing = this; closing != nullptr; closing = closing->next()) {
        if (Token::Match(closing, "{|[|(")) {
            closing = closing->link();
            if (!closing)
                return nullptr; // #6803
        } else if (Token::Match(closing, "}|]|)|;"))
            return nullptr;
        // we can make some guesses for template parameters
        else if (closing->str() == "<" && closing->previous() &&
                 (closing->previous()->isName() || Token::simpleMatch(closing->previous(), "]") || isOperator(closing->previous())) &&
                 (templateParameter ? templateParameters.find(closing->strAt(-1)) == templateParameters.end() : true))
            ++depth;
        else if (closing->str() == ">") {
            if (--depth == 0)
                return closing;
        } else if (closing->str() == ">>" || closing->str() == ">>=") {
            if (!isDecl && depth == 1)
                continue;
            if (depth <= 2)
                return closing;
            depth -= 2;
        }
        // save named template parameter
        else if (templateParameter && depth == 1 && Token::Match(closing, "[,=]") &&
                 closing->previous()->isName() && !Token::Match(closing->previous(), "class|typename|.") && !Token::Match(closing->tokAt(-2), "=|::"))
            templateParameters.insert(closing->strAt(-1));
    }

    return closing;
}