def state_changed

bendvy-ecs-core@0.1.0.4 · ordinary_condition_composition.bend:53

import Base
import bendvy-ecs-core@0.1.0.4/world.bend as W
import bendvy-ecs-core@0.1.0.4/ordinary_machine_initialization.bend as Init
import bendvy-ecs-core@0.1.0.4/ordinary_machine_condition.bend as Changed
import bendvy-ecs-core@0.1.0.4/system.bend as Sys

53# Registration is the existing Changed.define; no second instance is allocated.
54def state_changed(~S:Data,~K:Data,~V:Data,~R:Type,~take:R -> R & Init.State<S,K,V>,~put:R -> Init.State<S,K,V> -> R,~C:Type,~E:Data,instance:Changed.Instance<S,K,V,C,R,E,take,put>) -> Condition<W.World<S,C,R,E>,Changed.Instance<S,K,V,C,R,E,take,put>,changed_run(~S,~K,~V,~R,~take,~put,~C,~E)>:
55  match instance:
56    case Changed.Instance{Sys.Registry{+ns,+id,+name,+access,cursor},revision}:Condition{Changed.Instance{Sys.Registry{ns,id,name,access,cursor},revision},Description{name,access,[StateChanged{ns,id,name,access}]}}