Function uses_ref_count

system/include/emscripten/val.h:578–580

Whether this value is a uses incref/decref (true) or is a special reserved value (false).

  // Whether this value is a uses incref/decref (true) or is a special reserved
  // value (false).
  bool uses_ref_count() const {
    return handle > reinterpret_cast<EM_VAL>(internal::_EMVAL_LAST_RESERVED_HANDLE);
  }

  template<typename WrapperType>
  friend val internal::wrapped_extend(const std::string& , const val& );