ByteBlockReader.read_at.exact.length: 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 166-175 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=166&end_line=175

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

def read_at.exact.length(
  needed: U32,
  copies: Bytes.Bytes & Bytes.Bytes
) -> Result<&1, &1, U32 & String, SstStreamIo.ExactResult>:
  match copies:
    case (measured, retained):
      match measured:
        case Bytes.Bytes{len, _}:
          read_at.exact.complete(retained,
            QueuePolicy.nat.clone.pair(U32.to_nat(len)), needed)

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=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.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/SstStreamIo.bend&name=ExactResult
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/coordinator/QueuePolicy.bend&name=nat.clone.pair
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/ByteBlockReader.bend&name=read_at.exact.complete