def set_prev

bend-collections@1.0.0.0 · src/containers/intrusive_links.bend:61

import Base

61def set_prev(s: Links, n: U32, m: Maybe<&2, U32>) -> Links:
62  Links{nexts, prevs, heads} = s
63  Links{nexts, Array.set(U32, prevs, n, encode(m)), heads}