def install_leaf

bendvy-ecs-core@0.1.0.3 · execution_reservation_materialization.bend:99

import Base
import bendvy-ecs-core@0.1.0.3/execution_composer_layout.bend as Layout
import bendvy-ecs-core@0.1.0.3/chunk_column.bend as Column
import bendvy-ecs-core@0.1.0.3/change_tick.bend as Tick

99def install_leaf(~S:Data,-P:Type,-V:Data,refresh:P -> P & V,-key:String,-origin:Layout.Layout,+index:U32,tick:Tick.Tick,slot:Layout.ColumnSlot<S,Layout.Viewed<P,V>,key,origin>,bundle:Maybe<&1,P>) -> Layout.ColumnSlot<S,Layout.Viewed<P,V>,key,origin> & Maybe<&1,P>:
100  match slot bundle:
101    case slot None{}:(slot,None{})
102    case Layout.ColumnSlot{column} Some{incoming}:installed_leaf(~S,P,V,key,origin,write_column(~S,Layout.Viewed<P,V>,Column.ensure_generic(S,Layout.Viewed<P,V>,column,U32.add(index,1)),index,tick,Some{Layout.initialized(P,V,refresh(incoming))}))