Compose.co.close: def of yaml-for-bend@0.1.1.0
Import: import yaml-for-bend@0.1.1.0/compose.bend as Compose
Lines 417-429 of yaml-for-bend@0.1.1.0/compose.bend: https://jend.leeeet.dev/read.txt?path=yaml-for-bend@0.1.1.0/compose.bend&start_line=417&end_line=429

import Base
import yaml-for-bend@0.1.1.0/token.bend as T
import yaml-for-bend@0.1.1.0/value.bend as V

# The collection on top ends.
def co.close(co: Co) -> Result<&2, &2, T.Error, Co>:
  match co:
    case Co{stack, anchors, +count, root, docs, opened, depth, copied}:
      match stack:
        case Nil{}:
          Fail{content("found the end of a collection that never started", T.Mark{0n, 0n, 0n})}
        case Con{top, rest}:
          match top:
            case OSeq{anchor, tag, items, start, +at}:
              node.done(Done{collection(tag, V.Seq{List.reverse(&2, V.Yaml, items)})}, Co{rest, anchors, count, root, docs, opened, Nat.sub(depth, 1n), copied}, anchor, False{}, 1n+Nat.sub(count, start), 1n, at)
            case OMap{anchor, tag, items, start, +at}:
              node.done(map.tagged(map.value(List.reverse(&2, Item, items)), tag), Co{rest, anchors, count, root, docs, opened, Nat.sub(depth, 1n), copied}, anchor, False{}, 1n+Nat.sub(count, start), 1n, at)

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=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.reverse
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=Co
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=Item
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=Open
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=collection
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=content
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=map.tagged
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=map.value
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/compose.bend&name=node.done
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/token.bend&name=Error
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/token.bend&name=Mark
  https://jend.leeeet.dev/definition.txt?path=yaml-for-bend@0.1.1.0/value.bend&name=Yaml