def projected

bendvy-ecs-core@0.1.0.4 · owned_event_family_reader_query.bend:51

import Base
import bendvy-ecs-core@0.1.0.4/change_tick.bend as Tick
import bendvy-ecs-core@0.1.0.4/deferred_command.bend as Deferred
import bendvy-ecs-core@0.1.0.4/trace_facts.bend as TraceFacts
import bendvy-ecs-core@0.1.0.4/world.bend as W
import bendvy-ecs-core@0.1.0.4/transaction.bend as T
import bendvy-ecs-core@0.1.0.4/compose.bend as Q
import bendvy-ecs-core@0.1.0.4/ordinary_query_declaration.bend as Decl
import bendvy-ecs-core@0.1.0.4/owned_event_log.bend as Log
import bendvy-ecs-core@0.1.0.4/owner_product.bend as Product
import bendvy-ecs-core@0.1.0.4/capabilities.bend as Cap

51def projected(~S:Data,~C:Type,~R:Type,~P:Type,~Rest:Type,~E:Data,~path:Product.Lens<R,Log.Log<P>,Rest>,~Request:Type,~Projection:Data,~Args:Type,~Observation:Type,~U:Data,~Out:Data,~Ops:Type -> Type,~at:P -> Request -> P & Projection,~project:@-H:Type -> @-read:Cap.Request<H,Request,Projection> -> H -> Args -> H & Projected<Args,Observation,U>,~query:Decl.Declaration<S,Q.Frame<S,C,R,E>,Ops(Q.Frame<S,C,R,E>)>,~body:@-H:Type -> @-caps:Ops(H) -> Observation -> Args -> H -> H & (Observation & (Args & (T.Outcome<U> & Out))),cursor:Maybe<&2,Tick.Tick>,undo:List<(W.World<S,C,R,E> -> W.World<S,C,R,E>)>,commands:List<Deferred.Command<W.World<S,C,R,E>>>,events:List<&2,E>,trace:TraceFacts.State,next:Args -> T.Tx<W.World<S,C,R,E>,E> -> Args & (List<Observation> & (T.Tx<W.World<S,C,R,E>,E> & (T.Outcome<Error<U>> & List<&2,Out>))),observed:W.World<S,C,R,E> & Log.ReadResult<Args,Projected<Args,Observation,U>>) -> Args & (List<Observation> & (T.Tx<W.World<S,C,R,E>,E> & (T.Outcome<Error<U>> & List<&2,Out>))):
52  match observed:
53    case (world,Log.Missing{args}):(args,([],(T.Tx{world,undo,commands,events,trace},(T.Failure{MissingPayload{}},[]))))
54    case (world,Log.Found{ProjectionFailed{args,error}}):(args,([],(T.Tx{world,undo,commands,events,trace},(T.Failure{ProjectError{error}},[]))))
55    case (world,Log.Found{BendvyReady{args,observation}}):handles(~S,~C,~R,~P,~Rest,~E,~path,~Request,~Projection,~Args,~Observation,~U,~Out,~Ops,~at,~project,~query,~body,cursor,undo,commands,events,trace,observation,args,next,W.handles(~S,~C,~R,~E,world))