Mp3Dec.bits.pref: def of emerging-ezaudio@0.4.0.0
Import: import emerging-ezaudio@0.4.0.0/src/mp3_dec.bend as Mp3Dec
Lines 63-68 of emerging-ezaudio@0.4.0.0/src/mp3_dec.bend: https://jend.leeeet.dev/read.txt?path=emerging-ezaudio@0.4.0.0/src/mp3_dec.bend&start_line=63&end_line=68

import Base

def bits.pref(hop: Nat, +w: U32, rest: List<&2, U32>) -> List<&2, U32>:
  match hop:
    case 0n:
      rest
    case 1n++p:
      ((w >> p : U32) .&. 1 : U32) <> bits.pref(p, w, rest)

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shrn