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(** 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;
(** The LOW MASS admitted set (RG 111(b)/(c)/(d) -- {!Precedence.rules.admit}'s
own wider caps). Not named [low_mass_commemorations]: this field
predates the sung/low distinction and every existing reader
([emit], the differential/oracle layers, {!Record}) already reads
it under this name, so renaming it would be a needless breaking
change for a doc clarification alone. The SUNG-Mass equivalent
(RG 111(a): at most one commemoration, and it must be privileged)
is {!Precedence.sung_mass_commemorations}, a pure derivation over
this same list -- see its own citation for why it is a function,
not a second stored field. *)
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;
(** The day's reading references, resolved by the rite's own
{!Rite.readings}. Empty for a rite whose lectionary is not built;
for EF, exactly one [First] and one [Gospel] on every day of every
year 1583..9999 -- asserted, not assumed, by {!Validate}'s own
["citations"] / ["citations-unresolved"] checks. (This said "always
empty until Plan 4" until Task 10; the lectionary landed before
Plan 4 did, and the comment outlived its truth.) *)
formulary : Mass_formulary.t option;
(** Which Mass this day says, and how that was decided -- see
{!Mass_formulary}. [None] only for a rite with no lectionary; for
EF it is [Some] on every day of every year 1583..9999, asserted by
{!Validate}. *)
creed : bool;
(** Whether the Creed is said at this day's Mass -- {!Rite.t.creed},
EF: RG 475-476. A decision, not an [option]: [false] for a rite
that has not implemented the rule, same as [creed] itself. *)
gloria : bool;
(** Whether the Gloria in excelsis is said at this day's Mass --
{!Rite.t.gloria}, EF: RG 431-432. Same seam as [creed] in every
respect. *)
preface : Preface.t option;
(** Which preface is said at this day's Mass -- {!Rite.t.preface},
EF: RG 482-499. Same seam as [creed]/[gloria], but [option], not
a bare {!Preface.t}: see {!Rite.t.preface}'s own citation for why
-- [None] both for a rite that has not implemented the rule and
for a real day this engine resolves that has no Mass at all
(Good Friday). *)
}
[@@deriving sexp]
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