Iterable<T> followedBy (Iterable<T> other) inherited
Iterable<E> followedBy(Iterable<E> other) { var self = this; // TODO(lrn): Remove when we can promote `this`. if (self is EfficientLengthIterable<E>) { return FollowedByIterable<E>.firstEfficient(self, other); } return FollowedByIterable<E>(this, other); }