asUtf8Sink method Null safety

ByteConversionSink asUtf8Sink (
  1. bool allowMalformed

Returns this as a sink that accepts UTF-8 input.

If used, this method must be the first and only call to this. It invalidates this. All further operations must be performed on the result.


ByteConversionSink asUtf8Sink(bool allowMalformed) {
  return _Utf8ConversionSink(this, allowMalformed);