def map_last

bend-collections@1.0.0.0 · src/containers/internal/intrusive_list.bend:545

import Base
import bend-collections@1.0.0.0/src/containers/types/intrusive_doubly_linked_list.bend as E

545def map_last(~S: Type, ~N: Data, ~V: Data, ~T: Type, ~C: Data, ~prev: S -> N -> S & Maybe<&2, N>, ~value: S -> N -> S & V, ~fn: S -> C -> V -> S & Maybe<&1, T>, +fuel: Nat, +c: C, r: S & Result<&2, &1, E.Error, Maybe<&2, N>>) -> S & Result<&2, &1, E.Error, List<&1, T>>:
546  match r:
547    case Tuple{s, Fail{e}}: (s, Fail{e})
548    case Tuple{s, Done{end}}:
549      map_loop(~S, ~N, ~V, ~T, ~C, ~prev, ~value, ~fn, fuel, c, (s, (end, Nil{})))