len method Null safety

int len()

Implementation

int len() {
  final constructor =
      _dll_handle.lookupFunction<_Context_getLength_c, _Context_getLength_dart>(_context_namespace + 'getLength');
  final exception = _getException();
  var res = constructor(this._impl, exception);

  tdvCheckException(exception, _dll_handle);
  return res;
}