Blake3.last_go: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/blake3.bend as Blake3
Lines 124-129 of bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/blake3.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/blake3.bend&start_line=124&end_line=129

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

# The last chunk: n full blocks before its last block of len bytes (1..64, or
# 0 for the empty message). Returns the pending output of the last block.
def last_go(n: Nat, +counter: U32, +index: U32, +flags: U32, +len: Nat, cv: T.CV, pair: Array<U32> & T.Block) -> Array<U32> & T.Out:
  match n pair:
    case 0n Tuple{a,b}: (a,T.Out{cv,mask_block(b,len),counter,U32.from_nat(len),U32.or(flags,2)})
    case 1n+p Tuple{a,b}: last_go(p,counter,U32.add(index,16),0,len,C.compress(cv,b,counter,64,flags),read_block(a,U32.add(index,16)))

Uses (14):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.from_nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.or
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/blake3.bend&name=mask_block
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/blake3.bend&name=read_block
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/compress.bend&name=compress
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/types.bend&name=Block
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/types.bend&name=CV
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/crypto/blake/blake3/types.bend&name=Out