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open Sexplib0.Sexp_conv
(* The single stable result schema (parent spec §2). *)
type ('s, 'r) t = {
date : Date.t;
rite : string;
temporal : ('s, 'r) Temporal.t;
(** embedded, not flattened: it is already a coherent unit with its own
invariants, and re-listing season/week/weekday here would create two
places for them to disagree *)
observed : 'r Celebration.t;
commemorations : ('r Celebration.t * Precedence.privilege) list;
transferred_in : 'r Celebration.t option;
(** arrived here from an impeded day *)
transferred_out : ('r Celebration.t * Date.t) list;
(** celebrations that left this day, and where each one went. A list,
not an option: RG 97-98 has coinciding I-class feasts transfer
"in order" -- plural -- so a day can lose more than one. Asymmetric
with [transferred_in] deliberately: a day receives at most one
arrival, because RG 96 sends each departure to the next day that
is not I or II class, and the first to arrive occupies it. *)
omitted : ('r Celebration.t * string) list;
(** with the reason, never silent -- Task 12's no-celebration-lost
invariant reads this *)
citations : Citation.t list; (** always empty until Plan 4 *)
formulary : Mass_formulary.t option;
(** which Mass the day says, and how that was decided; [None] only for
a rite with no lectionary -- see {!Mass_formulary} *)
}
[@@deriving sexp]
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