OrdinaryEventDeclaration.register_writer: def of bendvy-ecs-core@0.1.0.4
Import: import bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend as OrdinaryEventDeclaration
Lines 61-67 of bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend: https://jend.leeeet.dev/read.txt?path=bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend&start_line=61&end_line=67

import Base
import bendvy-ecs-core@0.1.0.4/world.bend as W
import bendvy-ecs-core@0.1.0.4/system.bend as Sys

# Register a publishing system using declaration-derived access metadata.
# A Read declaration returns RegistrationFailed with world retained; successful
# registration returns the world and registry. No event is sent by registration.
def register_writer(~S:Data,~C:Type,~R:Type,~E:Data,~A:Type,~Error:Data,~O:Type,~runner:W.World<S,C,R,E> -> A -> Sys.Outcome<W.World<S,C,R,E>,Error,O>,world:W.World<S,C,R,E>,+declaration:Declaration<S,E>,name:String) -> Sys.RegistrationResult<S,C,R,E,A,Error,O,runner>:
  match declaration:
    case Declaration{_,Read{}}:Sys.RegistrationFailed{world}
    case Declaration{+domain,Write{}}:Sys.register(~S,~C,~R,~E,~A,~Error,~O,~runner,world,name,[access(~S,~E,Declaration{domain,Write{}})])

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend&name=Declaration
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend&name=Mode
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/ordinary_event_declaration.bend&name=access
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=Outcome
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=RegistrationResult
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/system.bend&name=register
  https://jend.leeeet.dev/definition.txt?path=bendvy-ecs-core@0.1.0.4/world.bend&name=World