VisibleCursor.ready.delta: def of mylsm-lsm-store@0.6.0.1
Import: import mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend as VisibleCursor
Lines 348-371 of mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend: https://jend.leeeet.dev/read.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&start_line=348&end_line=371

import Base
import mylsm-lsm-store@0.6.0.1/src/ByteMemTable.bend as ByteMemTable
import mylsm-lsm-store@0.6.0.1/src/scan/RangeCursor.bend as RangeCursor
import mylsm-lsm-store@0.6.0.1/src/scan/SstCursor.bend as SstCursor

def ready.delta(
  base: Maybe<&1, SstCursor.Cursor>,
  pending: Maybe<&1, ByteMemTable.Entry>,
  bounds: RangeCursor.Bounds,
  head: DeltaHead
) -> Step:
  match base:
    case Some{base_cursor}:
      match pending:
        case Some{base_entry}:
          match head:
            case DeltaDone{}:
              Item{base_entry, Active{Some{base_cursor}, None{}, Nil{}, bounds, None{}}}
            case DeltaReady{entry, tail}:
              resolve(Some{base_cursor}, base_entry, entry, tail, bounds)
        case None{}: End{}
    case None{}:
      match pending:
        case None{}:
          match head:
            case DeltaDone{}: End{}
            case DeltaReady{entry, tail}:
              delta.output(entry, None{}, None{}, tail, bounds)
        case Some{_}: End{}

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/ByteMemTable.bend&name=Entry
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/RangeCursor.bend&name=Bounds
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/SstCursor.bend&name=Cursor
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&name=Cursor
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&name=DeltaHead
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&name=Step
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&name=delta.output
  https://jend.leeeet.dev/definition.txt?path=mylsm-lsm-store@0.6.0.1/src/scan/VisibleCursor.bend&name=resolve