Module lookup 

Calendar lookup DSL.

Resolves a code string to a calendar: a business-centre code, or a comma-separated list joined into the union of their holidays. Examples: "GBLO", "GBLO,EUTA". A settlement calendar is not part of the expression: it is an argument of the SettlementLag.

Structs

CalendarSpec

A calendar stated as data, for ingestion: the code it binds, the holidays it closes, and the weekdays that are not business days.

Enums

CalendarIngestError

Why a calendar could not be ingested.

CalendarParseError

Error resolving a calendar-lookup string.

Statics

ANY_INGESTED 🔒

Whether any calendar has been ingested — the guard that keeps the binding table off the resolution path of a process that never ingests.

INGEST_GENERATION 🔒

Bumped, under the composite cache’s lock, by every ingest and clear: a composite built across a bump is not cached.

Functions

bindings 🔒

bound 🔒

The calendar ingested under the canonical code, if any — what a shipped centre’s or market’s own calendar() answers before its table, so every path that reaches a shipped calendar honours an override.

canonical_code 🔒

The canonical code a lookup token resolves under: an alias of a shipped centre or market reads as that centre’s code, anything else upper-cased.

center

Resolves a center code to a calendar, panicking on a wiring error.

composite_cache 🔒

The process-wide composite-expression cache. Calendars are immutable, so an entry is invalidated only when a calendar is ingested under a code the expression names; the expression universe is the closed set of template calendar strings, so the map stays small.

ingest_calendar

Binds spec.code to a calendar built from spec, process-wide.

ingest_calendars

Ingests every spec in order; a later spec for the same code wins.

ingested 🔒

ingested_calendars

The codes ingested this process, sorted — what a run records to say which calendars it overrode or added.

is_well_formed_code 🔒

Whether a token is a well-formed calendar code: non-empty after trimming and made only of ASCII letters, digits and dots. This one rule decides what lookup accepts as a member and what ingest_calendar accepts as a code, so a stray character is refused the same way wherever it appears.

join 🔒

Resolves a comma-separated list to a single calendar (joining by union of holidays when there is more than one member).

lookup

Resolves a lookup string to a calendar.

reserved_codes 🔒

The reserved codes lookup resolves ahead of the registry, for a rejection to name alongside the registered centres. The one place the spellings are written: resolve_reserved and the ingestion guard both read them from here, so what is advertised is what resolves.

resolve_one 🔒

Resolves a single token to a calendar: a bare FpML code (or alias) yields the jurisdiction settlement calendar; a qualified BASE.SUFFIX code (or a market alias such as nyse) yields the market calendar. A calendar ingested under the code — or under the canonical code an alias spells — answers first.

resolve_reserved 🔒

The two rule-based calendars, reachable by a reserved code so that the whole substrate is namable in one expression language.

Type Aliases

Bindings 🔒

The calendar bindings ingested this process: canonical code → calendar.

CompositeCache 🔒

The composite-expression cache’s storage: expression string → compiled calendar.