ByteBlockReader.seek.block.index.read: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend as ByteBlockReader
Lines 593-607 of mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&start_line=593&end_line=607

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

def seek.block.index.read(
  file: File,
  state: State,
  index_offset: Nat,
  indices: U32 & U32
) -> IO(Result<&1, &1, U32 & String, Reader>):
  match indices:
    case (address_index, read_index):
      do IO<Result<&1, &1, U32 & String, Reader>>:
        pair : File & Result<&1, &1, U32 & String, Bytes.Bytes> <-
          Fs.read_at(file, U32.from_nat(Nat.add(index_offset,
            Nat.add(8n, Nat.mul(U32.to_nat(address_index), 16n)))), 8)
        exact : File & Result<&1, &1, U32 & String, SstStreamIo.ExactResult> =
          read_at.exact.pair(8, pair)
        seek.block.read(state, read_index, SstStreamIo.read.exact.state(exact))

Uses (21):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=IO.bind
  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.mul
  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=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  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.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/Fs.bend&name=read_at
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&name=ExactResult
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/SstStreamIo.bend&name=read.exact.state
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=Reader
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=read_at.exact.pair
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=seek.block.read