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refactor: registry pattern for jolt-hash + jolt-class (jolt-lmot)

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Replace the set!-capture-and-rebind chains extending jolt-hash (3 sites: inst-time/
host-table/records) and jolt-class (3 sites: bigdec/natives-queue/host-table) with a
register-hash-arm! / register-class-arm! registry (the pattern already used by
register-str-render!). The base dispatcher walks its arms — disjoint types, so order
is immaterial — then falls to the base cases. The entry is stable, so the per-site
(def-var! "clojure.core" "class" …) re-points are gone.

Behaviour-preserving (runtime .ss, no re-mint): jinst hash, bigdec/queue/record
class, record hash, and a sorted-map hashing as its plain map all verified; make test
green, 0 new corpus divergences. First two of six dispatchers; get/=/pr-str follow.
This commit is contained in:
Yogthos 2026-06-23 23:01:30 -04:00
parent bcd752717e
commit d168d1195b
7 changed files with 34 additions and 19 deletions
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4
host/chez/natives-queue.ss
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@ -49,9 +49,7 @@
(register-str-render! jolt-queue? (lambda (x) (jolt-str-render-one (jolt-seq-or-empty x))))
;; class / type / instance? recognize a queue.
(define %q-class jolt-class)
(set! jolt-class (lambda (x) (if (jolt-queue? x) "clojure.lang.PersistentQueue" (%q-class x))))
(def-var! "clojure.core" "class" jolt-class)
(register-class-arm! jolt-queue? (lambda (x) "clojure.lang.PersistentQueue"))
(register-instance-check-arm!
(lambda (type-sym val)
(if (jolt-queue? val)