ExecutionReservationMaterialization.write_column: def of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/execution_reservation_materialization.bend as ExecutionReservationMaterialization
Lines 91-95 of bendvy-ecs-core@0.1.0.3/execution_reservation_materialization.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/execution_reservation_materialization.bend&start_line=91&end_line=95

import Base
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

def write_column(~S:Data,-P:Type,column:Column.Column<S,P>,+index:U32,+tick:Tick.Tick,incoming:Maybe<&1,P>) -> Column.Column<S,P> & Maybe<&1,P>:
  match column incoming:
    case column None{}:(column,None{})
    case Column.Leaf{values,stamps} Some{incoming}:written_value(~S,P,stamps,index,tick,Array.swap(Maybe<&1,P>,values,index,Some{incoming}))
    case Column.Branch{+half,left,right} Some{incoming}:write_branch(~S,P,write_column(~S,P,left,index,tick),write_column(~S,P,right,U32.sub(index,half),tick),half,incoming,U32.is_lt(index,half))

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.swap
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_lt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/change_tick.bend&name=Tick
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/chunk_column.bend&name=Column
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/execution_reservation_materialization.bend&name=write_branch
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/execution_reservation_materialization.bend&name=written_value