def relations

bendvy-ecs-core@0.1.0.4 · check_relation_projection.bend:47

import Base
import inspector_query_projection.bend as Select
import check.bend as K
import relation_commands.bend as A
import relation_query.bend as RQ

47# Closed relation requirement list supports both directions, required/optional,
48# presence/absence filters and every declared projection key/order unchanged.
49def relations(~S:Data,~C:Type,~R:Type,~E:Data,~spec:RQ.Spec<S>) -> Select.DeclaredSelection<K.Frame<S,A.Store<S,C>,R,A.Notice<S,E>>,S,List<&2,RQ.Cell<S>>>:
50  Select.DeclaredSelection{matches(~S,~C,~R,~E,~spec),project(~S,~C,~R,~E,~spec)}