Method parse

lib/valueflow.cpp:6843–6908

struct ContainerConditionHandler : ConditionHandler {
    std::vector<Condition> parse(const Token* tok, const Settings& settings) const override
    {
        std::vector<Condition> conds;
        parseCompareEachInt(tok, [&](const Token* vartok, ValueFlow::Value true_value, ValueFlow::Value false_value) {
            vartok = settings.library.getContainerFromYield(vartok, Library::Container::Yield::SIZE);
            if (!vartok)
                return;
            true_value.valueType = ValueFlow::Value::ValueType::CONTAINER_SIZE;
            false_value.valueType = ValueFlow::Value::ValueType::CONTAINER_SIZE;
            Condition cond;
            cond.true_values.push_back(std::move(true_value));
            cond.false_values.push_back(std::move(false_value));
            cond.vartok = vartok;
            conds.push_back(std::move(cond));
        });
        if (!conds.empty())
            return conds;

        const Token* vartok = nullptr;

        // Empty check
        if (tok->str() == "(") {
            vartok = settings.library.getContainerFromYield(tok, Library::Container::Yield::EMPTY);
            // TODO: Handle .size()
            if (!vartok)
                return {};
            const Token *parent = tok->astParent();
            while (parent) {
                if (Token::Match(parent, "%comp%"))
                    return {};
                parent = parent->astParent();
            }
            ValueFlow::Value value(tok, 0LL);
            value.valueType = ValueFlow::Value::ValueType::CONTAINER_SIZE;
            Condition cond;
            cond.true_values.emplace_back(value);
            cond.false_values.emplace_back(std::move(value));
            cond.vartok = vartok;
            cond.inverted = true;
            return {std::move(cond)};
        }
        // String compare
        if (Token::Match(tok, "==|!=")) {
            const Token *strtok = nullptr;
            if (Token::Match(tok->astOperand1(), "%str%")) {
                strtok = tok->astOperand1();
                vartok = tok->astOperand2();
            } else if (Token::Match(tok->astOperand2(), "%str%")) {
                strtok = tok->astOperand2();
                vartok = tok->astOperand1();
            }
            if (!strtok)
                return {};
            if (!astIsContainer(vartok))
                return {};
            ValueFlow::Value value(tok, Token::getStrLength(strtok));
            value.valueType = ValueFlow::Value::ValueType::CONTAINER_SIZE;
            Condition cond;