Method checkVariable

lib/symboldatabase.cpp:5173–5265

}

const Token *Scope::checkVariable(const Token *tok, AccessControl varaccess)
{
    // Is it a throw..?
    if (tok->isKeyword() && Token::Match(tok, "throw %any% (") &&
        Token::simpleMatch(tok->linkAt(2), ") ;")) {
        return tok->linkAt(2);
    }

    if (tok->isKeyword() && Token::Match(tok, "throw %any% :: %any% (") &&
        Token::simpleMatch(tok->linkAt(4), ") ;")) {
        return tok->linkAt(4);
    }

    // friend?
    if (tok->isKeyword() && Token::Match(tok, "friend %type%") && tok->next()->varId() == 0) {
        const Token *next = Token::findmatch(tok->tokAt(2), ";|{");
        if (next && next->str() == "{")
            next = next->link();
        return next;
    }

    // skip const|volatile|static|mutable|extern
    while (tok && tok->isKeyword() && Token::Match(tok, "const|constexpr|volatile|static|mutable|extern")) {
        tok = tok->next();
    }

    // the start of the type tokens does not include the above modifiers
    const Token *typestart = tok;

    // C++17 structured bindings
    if (tok && tok->isCpp() && (symdb.mSettings.standards.cpp >= Standards::CPP17) && Token::Match(tok, "auto &|&&| [")) {
        const Token *typeend = Token::findsimplematch(typestart, "[")->previous();
        for (tok = typeend->tokAt(2); Token::Match(tok, "%name%|,"); tok = tok->next()) {
            if (tok->varId())
                addVariable(tok, typestart, typeend, varaccess, nullptr, this);
        }
        return typeend->linkAt(1);
    }

    while (tok && tok->isKeyword() && Token::Match(tok, "class|struct|union|enum")) {
        tok = tok->next();
    }

    // This is the start of a statement
    const Token *vartok = nullptr;
    const Token *typetok = nullptr;

    if (tok && isVariableDeclaration(tok, vartok, typetok)) {
        const Token* const orig = tok;
        // If the vartok was set in the if-blocks above, create a entry for this variable..
        tok = vartok->next();
        while (Token::Match(tok, "[|{"))
            tok = tok->link()->next();

        if (vartok->varId() == 0) {
            if (!vartok->isBoolean())
                symdb.debugMessage(vartok, "varid0", "Scope::checkVariable found variable \'" + vartok->str() + "\' with varid 0.");
            return tok;