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Chez inc 3l: transient collection RT shims

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transient/persistent!/conj!/assoc!/dissoc!/disj!/pop! as copy-on-write over the
persistent collections (host/chez/transients.ss) — each op rebuilds the persistent
coll (no in-place perf) but the semantics match, so into/frequencies/group-by work.
Adds persistent disj over pset-disj. get/count/contains? are redefined to see
through a transient (frequencies and group-by both do (get tm k) on a transient
map); vector? on a transient vector is false, which group-by relies on.

Prelude parity 1326 -> 1382/2497, 0 new divergences. emit-test exercises the direct
transient ops via run-prelude and the overlay users (frequencies/group-by/into)
end-to-end through the bin/jolt-chez -e binary.
This commit is contained in:
Yogthos 2026-06-17 21:58:35 -04:00
parent bb8b2d201c
commit 1826c8b3e9
5 changed files with 137 additions and 15 deletions
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5
host/chez/rt.ss
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@ -149,3 +149,8 @@
;; double/gensym — host-coupled seed natives def-var!'d into clojure.core. Loaded
;; LAST because `str` reuses jolt-pr-str (defined just above).
(load "host/chez/converters.ss")
;; transients (jolt-kl2l): copy-on-write transient collections + persistent disj;
;; extends get/count/contains? to see through a transient. After collections.ss
;; (the persistent ops it delegates to).
(load "host/chez/transients.ss")