SstStreamIo.read.block.header.size: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend as SstStreamIo
Lines 164-178 of mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&start_line=164&end_line=178

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

def read.block.header.size(
  file: File,
  +size: Nat,
  +used: Nat,
  parser: SstFile.StreamState,
  header: Bytes.Bytes,
  tail: Maybe<&2, U32>
) -> StreamReadState:
  match tail:
    case None{}:
      ReadClose{file, Fail{(corruption_error_code(), "invalid SST block size")}}
    case Some{+tail_len}:
      read.block.header.bound(file, size, used, parser, header, tail_len,
        Nat.is_le(Nat.add(Nat.add(used, 8n), U32.to_nat(tail_len)),
        Nat.sub(size, 40n)))

Uses (15):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.is_le
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  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=Base/base.bend&name=U32.to_nat
  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/SstFile.bend&name=StreamState
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&name=StreamReadState
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&name=corruption_error_code
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&name=read.block.header.bound