Lrw.cr.lrw.bdec: def of bend-osdev-crypto@0.1.0.0
Import: import bend-osdev-crypto@0.1.0.0/lrw.bend as Lrw
Lines 38-43 of bend-osdev-crypto@0.1.0.0/lrw.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-crypto@0.1.0.0/lrw.bend&start_line=38&end_line=43

import Base

def cr.lrw.bdec(~K: Data, ~Blk: Data, ~dec: K -> Blk -> Blk, ~bxor: Blk -> Blk -> Blk, +k: K, t: Maybe<&2, Blk>, c: Blk) -> Blk:
  match t:
    case None{}:
      dec(k, c)
    case Some{+x}:
      bxor(dec(k, bxor(c, x)), x)

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