ByteWal.decode.checksum.prefix: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/ByteWal.bend as ByteWal
Lines 880-889 of mylsm-lsm-store@0.6.0.1/src/ByteWal.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&start_line=880&end_line=889

import Base
import mylsm-lsm-store@0.6.0.1/src/Wal.bend as Wal
import mylsm-lsm-store@0.6.0.1/src/hub_sha/sha256.bend as SHA
import bend-kit-bytes@0.3.2.0/bytes.bend as Bytes

# Parses the retained digest after hashing its exact frame prefix.
def decode.checksum.prefix(
  pair: Bytes.Bytes & Bytes.Bytes,
  batch: Batch,
  digest_offset: U32
) -> Result<&1, &1, Wal.Error, Batch>:
  match pair:
    case (frame, prefix):
      decode.checksum.claimed(bytes.slice(frame, digest_offset, 32), batch,
        SHA.sha256_packed_bytes(prefix))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  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=bend-kit-bytes@0.3.3.0/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=Batch
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=bytes.slice
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=decode.checksum.claimed
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/Wal.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/hub_sha/sha256.bend&name=sha256_packed_bytes