ChunkColumn.edit_leaf: def of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/chunk_column.bend as ChunkColumn
Lines 165-168 of bendvy-ecs-core@0.1.0.3/chunk_column.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/chunk_column.bend&start_line=165&end_line=168

import Base
import bendvy-ecs-core@0.1.0.3/lifecycle.bend as L
import bendvy-ecs-core@0.1.0.3/change_tick.bend as Tick

def edit_leaf(-S:Data,-C:Type,-V:Data,transform:C -> C & V,values:Array<Maybe<&1,C>>,stamps:Array<L.Stamp>,+index:U32,tick:Tick.Tick,write:Bool,valid:Bool) -> Column<S,C> & Maybe<&2,V>:
  match valid:
    case False{}: (Leaf{values,stamps},None{})
    case True{}: edit_taken(S,C,V,transform,stamps,index,tick,write,Array.swap(Maybe<&1,C>,values,index,None{}))

Uses (11):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.swap
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  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=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/chunk_column.bend&name=edit_taken
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/lifecycle.bend&name=Stamp