MigrateRunIo.migration.destination.checked: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/transfer/MigrateRunIo.bend as MigrateRunIo
Lines 173-190 of mylsm-lsm-store@0.6.0.1/src/transfer/MigrateRunIo.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateRunIo.bend&start_line=173&end_line=190

import Base
import mylsm-lsm-store@0.6.0.1/src/transfer/FormatInspect.bend as FormatInspect
import mylsm-lsm-store@0.6.0.1/src/transfer/Migrate.bend as Migrate
import mylsm-lsm-store@0.6.0.1/src/transfer/MigrateIo.bend as MigrateIo

def migration.destination.checked(
  source: String,
  destination: String,
  bundle: String,
  inspection: FormatInspect.Inspection,
  result: Result<&1, &1, U32 & String, Bool>
) -> IO(Result<&1, &1, Error, Unit>):
  match result:
    case Fail{(code, message)}:
      IO.pure(Result<&1, &1, Error, Unit>, Fail{Host{code, message}})
    case Done{True{}}:
      IO.pure(Result<&1, &1, Error, Unit>,
        Fail{Rejected{Migrate.DestinationExists{}}})
    case Done{False{}}:
      do IO<Result<&1, &1, Error, Unit>>:
        snapshot : Result<&1, &1, MigrateIo.Error, MigrateIo.SourceSnapshot> <-
          MigrateIo.read_legacy_source(source)
        migration.snapshot(inspection, destination, bundle, snapshot)

Uses (17):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=IO.pure
  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=Unit
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/FormatInspect.bend&name=Inspection
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/Migrate.bend&name=Rejection
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateIo.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateIo.bend&name=SourceSnapshot
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateIo.bend&name=read_legacy_source
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateRunIo.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/transfer/MigrateRunIo.bend&name=migration.snapshot