close method

@override void close()

Closes the sink.

Calling this method more than once is allowed, but does nothing.

Neither add nor addError must be called after this method.

Implementation

@override
void close() {
  if (_closed) {
    if (_throwOnClosed) {
      throw StateError('Cannot perform operation after closing');
    }
    return;
  }
  _closed = true;
  _exceptionStrategy.dispatch(_sinks, (sink) => sink.close());
}