Method setOption

include/ast/component/type.h:245–247

    return *std::get_if<OptionTy>(&Type);
  }
  void setOption(OptionTy &&Ty) noexcept {
    Type.emplace<OptionTy>(std::move(Ty));
  }

  const ResultTy &getResult() const noexcept {
    return *std::get_if<ResultTy>(&Type);