Function getBasicType

include/sonic/dom/genericnode.h:1034–1036

  }

  sonic_force_inline TypeFlag getBasicType() const noexcept {
    return static_cast<TypeFlag>(t.t & kBasicTypeMask);
  }
  sonic_force_inline void setLength(size_t len) noexcept {
    sv.len = (len << kInfoBits) | static_cast<uint64_t>(t.t);
  }