def next_checked
bend-collections@1.0.0.0 · src/containers/dlist_iterator.bend:140
import bend-collections@1.0.0.0/src/containers/dlist_iterator.bend as DlistIterator
import Base
import bend-collections@1.0.0.0/src/containers/doubly_linked_list.bend as D
import bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend as R
140def next_checked(~T: Data, it: Iterator<T>, empty: Bool) -> Iterator<T> & Result<&2, &2, Error, T>:
141 IT{D.DL{tag, depth, cap, R.DL{owner, fresh, free, count, head, tail, rd, rc, vals, prevs, nexts}, gens}, +n, last, f, i} = it
142 forward_finish(~T, tag, depth, cap, gens, owner, fresh, free, count, head, tail, rd, rc, prevs, n, last, f, i, forward_arrays(~T, vals, nexts, n, empty))