IntrusiveList.write_prev: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend as IntrusiveList
Lines 52-55 of bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/internal/intrusive_list.bend&start_line=52&end_line=55

import Base

def write_prev(~S: Type, ~N: Data, ~set_prev: S -> N -> Maybe<&2, N> -> S, s: S, +at: Maybe<&2, N>, +node: Maybe<&2, N>) -> S:
  match at:
    case None{}: s
    case Some{a}: set_prev(s, a, node)

Uses (1):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe