Blake3.message_chunks: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend as Blake3
Lines 210-215 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend&start_line=210&end_line=215

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/types.bend as T

# A message of `length` bytes has max(1, ceil(length/1024)) chunks: n =
# (length - 1) div 1024 full ones, then the last of length - 1024n bytes.
def message_chunks(a: Array<U32>, +length: Nat) -> List<&2,T.Out>:
  +n = Nat.div(Nat.sub(length,1n),1024n)
  +last = Nat.sub(length,Nat.mul(n,1024n))
  chunks(n,0,0,last,chunk_at(n,0,0,last,a))

Uses (10):
  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=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mul
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend&name=chunk_at
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/blake/blake3.bend&name=chunks
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/types.bend&name=Out