def relation_entries

bendvy-ecs-core@0.1.0.4 · ordinary_app_resource_field_declaration.bend:139

import Base
import bendvy-ecs-core@0.1.0.4/schema_fragments.bend as Fragments
import bendvy-ecs-core@0.1.0.4/relation_failure_reader.bend as RelationDecl
import bendvy-ecs-core@0.1.0.4/relation_types.bend as RelationTypes

139# Schema-assembly projection: consume a relation declaration and emit entries
140# for its forward name followed by its inverse name. Entries describe schema
141# metadata; they do not create an edge, register a system or grant write access.
142def relation_entries(~S:Data,relation:RelationDecl.Declaration<S>) -> List<&2,Fragments.Entry<S>>:
143  match relation:
144    case RelationDecl.Declaration{RelationTypes.Descriptor{_,+name,+inverseName,_}}:[Fragments.Entry{Fragments.Relation{},name,name},Fragments.Entry{Fragments.Relation{},inverseName,inverseName}]