Feature.visibility: def of bendvy-ecs-core@0.1.0.3
Import: import bendvy-ecs-core@0.1.0.3/feature.bend as Feature
Lines 49-55 of bendvy-ecs-core@0.1.0.3/feature.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.3/feature.bend&start_line=49&end_line=55

import Base
import bendvy-ecs-core@0.1.0.3/schema_fragments.bend as SF

# Collect own and referenced dependency entries recursively for visibility
# description. This does not select/build dependencies or validate composition.
def visibility(~S:Data,tree:Tree<S>) -> List<&2,SF.Entry<S>>:
  match tree:
    case Empty{}: []
    case Feature{_,own,dependencies}: List.append(&2,SF.Entry<S>,own,visibility(~S,dependencies))
    case Sequence{left,right}: List.append(&2,SF.Entry<S>,visibility(~S,left),visibility(~S,right))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.append
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/feature.bend&name=Tree
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.3/schema_fragments.bend&name=Entry