def changed

bendvy-ecs-core@0.1.0.4 · ordinary_query_declaration.bend:173

import Base
import bendvy-ecs-core@0.1.0.4/column.bend as Col
import bendvy-ecs-core@0.1.0.4/component.bend as Cmp
import bendvy-ecs-core@0.1.0.4/ordinary_declaration.bend as Identity
import bendvy-ecs-core@0.1.0.4/compose.bend as Q

173# Filter by this component changing since the executing system cursor.
174# Grants no payload access; cursor advancement follows system success/skip/failure
175# rules, not creation or inspection of this declaration.
176def changed(~S:Data,~P:Type,~Store:Type,~R:Type,~E:Data,~Rest:Type,~V:Data,~Token:Data,~identity:Identity.Declaration<S,P>,~view:P -> P & V,~take:Store -> Rest & Col.Column<S,P>,~put:Rest -> Col.Column<S,P> -> Store) -> Declaration<S,Q.Frame<S,Store,R,E>,Unit>:
177  Declaration{Unit{},Q.lifecycle_match(~S,~Store,~R,~E,~Rest,~P,~V,~Token,~take,~put,~view,~Cmp.Family{Identity.key(~S,~P,identity)},~Q.Changed{}),[Clause{Identity.key(~S,~P,identity),Changed{}}]}