ClosableStringSink.fromStringSink constructor Null safety

ClosableStringSink.fromStringSink(
  1. StringSink sink,
  2. void onClose(
      )
    )

    Creates a new instance combining a StringSink sink and a callback onClose which is invoked when the returned instance is closed.

    Implementation

    factory ClosableStringSink.fromStringSink(StringSink sink, void onClose()) =
    _ClosableStringSink;