def apply_snapshot

bendvy-ecs-core@0.1.0.4 · machine.bend:95

import Base

95# Captured initial value is authoritative; current pending is deleted at the
96# machine's turn, matching Runtime.ts:1534 even when an earlier hook overwrote it.
97def apply_snapshot(~S: Data,~M: Data,~V: Data,~same: V -> V -> Bool,slot: Slot<S,M,V>,captured: Snapshot<V>) -> Applied<S,M,V>:
98  match slot captured:
99    case slot Unscheduled{}: Applied{slot,None{}}
100    case Missing{} Scheduled{_,_}: Applied{Missing{},None{}}
101    case Present{current,_,previous,changed} Scheduled{value,skipSame}:
102      apply_present(~S,~M,~V,~same,current,value,previous,changed,skipSame)