Lock.held.pick: def of cswap-bend-cli@0.1.0.0
Import: import cswap-bend-cli@0.1.0.0/lock.bend as Lock
Lines 46-53 of cswap-bend-cli@0.1.0.0/lock.bend: https://jend.leeeet.dev/read.txt?path=cswap-bend-cli@0.1.0.0/lock.bend&start_line=46&end_line=53

import Base
import cswap-bend-cli@0.1.0.0/fs.bend as Fs

def held.pick(f: File, r: Fs.Res(Bool)) -> IO(Fs.Res(Maybe<&1, File>)):
  match r:
    case Fail{e}:
      IO.bind(Unit, Fs.Res(Maybe<&1, File>), File.close(f), u => IO.pure(Fs.Res(Maybe<&1, File>), Fail{e}))
    case Done{True{}}:
      IO.pure(Fs.Res(Maybe<&1, File>), Done{Some{f}})
    case Done{False{}}:
      IO.bind(Unit, Fs.Res(Maybe<&1, File>), File.close(f), u => IO.pure(Fs.Res(Maybe<&1, File>), Done{None{}}))

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=File.close
  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=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  https://jend.leeeet.dev/definition.txt?path=cswap-bend-cli@0.1.0.0/fs.bend&name=Res