World.handles_join: def of bendvy-ecs-core@0.1.0.4
Import: import bendvy-ecs-core@0.1.0.4/world.bend as World
Lines 385-387 of bendvy-ecs-core@0.1.0.4/world.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&start_line=385&end_line=387

import Base
import bendvy-ecs-core@0.1.0.4/clock_state.bend as Clock
import bendvy-ecs-core@0.1.0.4/deferred_command.bend as Deferred
import entity_key.bend as K
import entity_allocator.bend as A

def handles_join(~S:Data,~C:Type,~R:Type,~E:Data,+namespace:U32,store:C,resource:R,events:List<&2,E>,pending:List<Deferred.Command<World<S,C,R,E>>>,registrations:List<&2,RegistrationMeta>,nextSystemId:U32,clock:Clock.State,observed:A.Allocator & List<&2,K.Key>) -> World<S,C,R,E> & List<&2,Handle<S>>:
  match observed:
    case (allocator,keys):(World{namespace,allocator,store,resource,events,pending,registrations,nextSystemId,clock},key_handles(~S,namespace,keys))

Uses (12):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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@0.1.0.4/clock_state.bend&name=State
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/deferred_command.bend&name=Command
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/entity_allocator.bend&name=Allocator
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/entity_key.bend&name=Key
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=Handle
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=RegistrationMeta
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=World
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=key_handles