Journal.append.ok: def of bend-kit-journal@0.3.1.0
Import: import bend-kit-journal@0.3.1.0/journal.bend as Journal
Lines 383-389 of bend-kit-journal@0.3.1.0/journal.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-journal@0.3.1.0/journal.bend&start_line=383&end_line=389

import Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes

def append.ok(ok: Bool, file: File, +max: U32, +end: U32, p: Bytes.Bytes) -> IO(Journal & Result<&1, &1, U32 & String, Unit>):
  match ok:
    case False{}:
      append.refuse(file, max, end, False{}, (5, "journal: an append failed; reopen the journal"))
    case True{}:
      Bytes.Bytes{+len, buf} = p
      append.size(U32.is_gt(len, max), Bool.or(U32.is_gt(end, 4294967283), U32.is_lt((4294967283 - end : U32), len)), file, max, end, Bytes.Bytes{len, buf})

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=Bool.or
  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=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.is_gt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Unit
  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=bend-kit-journal@0.3.1.0/journal.bend&name=Journal
  https://jend.leeeet.dev/definition.txt?path=bend-kit-journal@0.3.1.0/journal.bend&name=append.refuse
  https://jend.leeeet.dev/definition.txt?path=bend-kit-journal@0.3.1.0/journal.bend&name=append.size