records as shape-recs carrying a type tag (jolt-t34 R3)

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Records (defrecord/deftype) become shape-recs whose descriptor also carries
:type, under JOLT_SHAPE (flag off keeps the :jolt/deftype table form). A record
is a Janet tuple [descriptor field0 ...] in declared field order, so the
positional ->Name ctor maps args straight to slots.

- record-tag unifies the type accessor over both reps; instance?/satisfies?/
  protocol dispatch and the . interop path go through it.
- virtual :jolt/deftype key on record shape-recs (via shape-get) keeps every
  existing (get obj :jolt/deftype) dispatch site working.
- emit-kw-lookup's non-proven fallback routes any tuple to core-get (shape
  aware), not gated on compile-time JOLT_SHAPE — core is baked without the flag
  but still receives user shape-recs.
- assoc keeps the type (same-shape in place, new key grows a slot Clojure-style);
  dissoc of a declared field demotes to a plain map; pr prints #ns.Type{...}.
- JOLT_SHAPE added to the image-cache key (it shapes core's own compiled paths).

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Yogthos 2026-06-13 19:23:04 -04:00

parent e61a175f91

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