description

# Stream<T>.fromIterable constructor Null safety

Stream<T>.fromIterable(

1. Iterable<T> elements

)

Creates a single-subscription stream that gets its data from `elements`.

The iterable is iterated when the stream receives a listener, and stops iterating if the listener cancels the subscription, or if the Iterator.moveNext method returns `false` or throws. Iteration is suspended while the stream subscription is paused.

If calling Iterator.moveNext on `elements.iterator` throws, the stream emits that error and then it closes. If reading Iterator.current on `elements.iterator` throws, the stream emits that error, but keeps iterating.

## Implementation

    factory Stream.fromIterable(Iterable<T> elements) {
      return new _GeneratedStreamImpl<T>(
          () => new _IterablePendingEvents<T>(elements));
    }