| GrammarSymbol(const Span& span_, const std::u32string& name_) |
| void | AddMember(std::unique_ptr<Symbol>&& member) override |
| std::unique_ptr<sngxml::dom::Element> | CreateElement() override |
| bool | IsGrammarSymbol() const override |
| std::u32string | KindStr() override |
| std::vector<RuleSymbol*> | rules |