DlistStorage.peek_front: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend as DlistStorage
Lines 444-446 of bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend&start_line=444&end_line=446

import Base

def peek_front(~T: Data, s: DList<T>) -> DList<T> & Maybe<&2, T>:
  DL{+tag, +fresh, +free, count, +head, +tail, +depth, +cap, vals, prevs, nexts} = s
  peek_end(~T, tag, fresh, free, count, head, tail, depth, cap, vals, prevs, nexts, head, U32.is_eq(head, nil()))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend&name=DList
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend&name=nil
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend&name=peek_end