def both.live

mylsm-lsm-store@0.6.0.1 · src/scan/ScanMerge.bend:22

import Base

22# Applies ordering and tombstone precedence when both sources have a head.
23def both.live(live: Bool, order: Cmp) -> Decision:
24  match live:
25    case True{}:
26      match order:
27        case LT{}: EmitDelta{}
28        case EQ{}: EmitBoth{}
29        case GT{}: EmitBase{}
30    case False{}:
31      match order:
32        case LT{}: SkipDelta{}
33        case EQ{}: SkipBoth{}
34        case GT{}: EmitBase{}