BufferProof.words: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/sha/packed/buffer_proof.bend as BufferProof
Lines 28-32 of bend-collections-laws-crypto@1.0.0.0/proofs/crypto/sha/packed/buffer_proof.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/proofs/crypto/sha/packed/buffer_proof.bend&start_line=28&end_line=32

import Base

# Proof-only observation; never called by the buffer hashing API.
def words(a: Array<U32>) -> List<&2,U32>:
  match a:
    case ALeaf{x}: [x]
    case ANode{l,r}: List.append(&2,U32,words(l),words(r))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32