ReadonlycurrentReadonlystreamA swipeable feed's stream, which replaces the plain feed's: the feed is
walked by swipes, as the app does — the items that come in front, starting
with the item in front when the stream starts, then one swipeToNext per
pull (sending what each swipe sends, the next page requested on the swipe
the threshold names), to the feed's end. Each item that comes in front
enters its visit; the swipe ends the previous visit. Generic code that
reads stream on a swipeable feed therefore swipes; the raw pages of a
swipeable feed are nextPage by hand. Nothing runs until it is consumed;
stopping, take or a failure makes no swipe beyond the last pulled item.
Readonlyswipe
The members a swipeable feed's handle gets besides a feed's:
current, the item in front (right after the screen opens: its first item;undefinedwhen the first page holds none — the next swipe brings the first that loads), andswipeToNext, the swipe, which returns the item now in front —undefinedat the end of the feed, a normal result — crossing page boundaries itself: the swipe the screen's recorded threshold names requests the next page. A handle is a snapshot: itscurrentstays the item that was in front when it was taken, whileswipeToNextalways moves on from where the process is.