def install

bendvy-ecs-core@0.1.0.4 · ordinary_app_relation.bend:154

import Base
import bendvy-ecs-core@0.1.0.4/ordinary_app_composer.bend as Build
import bendvy-ecs-core@0.1.0.4/ordinary_app_observation_data.bend as DTO
import bendvy-ecs-core@0.1.0.4/ordinary_app_registration_fields.bend as Fields
import bendvy-ecs-core@0.1.0.4/relation_failure_reader.bend as Ord

154# Install the default relation observer without changing graph edges or owners.
155# Typical order: install, relate_app with a successful outcome, barrier_app, then
156# inverse_app or snapshot_app. See docs/parity/relations.md for accepted scenarios.
157def install(~S:Data,~C:Type,~R:Type,~E:Data,~declaration:Ord.Declaration<S>,~Owners:Type,~Rows:Data,~prior:World(~S,~C,~R,~E) -> World(~S,~C,~R,~E) & DTO.Observation<Rows>,~fold:Owners -> Owners & List<&2,Fields.Fields<S>>,app:Build.Registered<S,World(~S,~C,~R,~E),Owners,Rows,prior,fold>) -> Application(~S,~C,~R,~E,~declaration,~Owners,~Rows,~prior,~fold):
158  presented_install(~S,~C,~R,~E,~declaration,~builtin_row(~S),~Owners,~Rows,~prior,~fold,app)