toList method

Future<List<T>> toList ()

Collects all elements of this stream in a List.

Creates a List<T> and adds all elements of the stream to the list in the order they arrive. When the stream ends, the returned future is completed with that list.

If the stream contains an error, the returned future is completed with that error, and processing stops.

Implementation 

Future<List<T>> toList() {
  List<T> result = <T>[];
  _Future<List<T>> future = new _Future<List<T>>();
  this.listen(
      (T data) {
        result.add(data);
      },
      onError: future._completeError,
      onDone: () {
        future._complete(result);
      },
      cancelOnError: true);
  return future;
}