ByteWal.decode.header.count: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/ByteWal.bend as ByteWal
Lines 835-846 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=835&end_line=846

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

# Validates the declared count and full frame length.
def decode.header.count(
  pair: Bytes.Bytes & Maybe<&2, U32>,
  +frame_length: U32,
  +total: U32
) -> Result<&1, &1, Wal.Error, FrameHeader>:
  match pair:
    case (_, None{}):
      Fail{Wal.Malformed{}}
    case (frame, Some{+count}):
      decode.header.validated(frame, frame_length, count, total,
        frame.bounds.valid(frame_length, count, total))

Uses (10):
  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=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=FrameHeader
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=decode.header.validated
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteWal.bend&name=frame.bounds.valid
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/Wal.bend&name=Error