addAll method
Adds all entries
to the _data
buffer.
Implementation
void addAll(Iterable<T> entries) {
var entriesList =
entries is List<T> ? entries : entries.toList(growable: false);
_data.addAll(entriesList);
if (outputReadyFunction(this, entriesList)) {
markReady();
}
_checkDataLimit();
_notifyWaitingData(entries);
}