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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.
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Yogthos 2026-06-17 21:58:35 -04:00
parent bb8b2d201c
commit 1826c8b3e9
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test/chez/README.md
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@ -104,21 +104,25 @@ corpus case with all of core present, bucketing the result —
JOLT_CHEZ_PRELUDE_CORPUS=1 janet test/chez/run-corpus-prelude.janet
JOLT_CORPUS_LIMIT=200 … (every-Nth stride, fast)
Parity baseline: inc 3j **1220/2497**; inc 3k (converters, jolt-t6cr) **1326/2497**,
0 NEW divergences (13 allowlisted: dynamic vars `*ns*`/`*clojure-version*`/
`*unchecked-math*`, var/`*ns*` rendering, class names, eval-order, with-open — all
deferred Phase-2 / dynamic-var gaps). inc 3k added `host/chez/converters.ss`:
`str`/`subs`/`vec`/`keyword`/`symbol`/`compare`/`int`/`double`/`gensym` (seed natives,
matching `core_print.janet`/`core_io.janet` semantics — `str` reuses the printer,
`compare` is the 3-way port, the symbol no-ns sentinel is `#f` to match emit's
quoted-symbol lowering so `(= 'x (symbol "x"))` holds).
Parity baseline: inc 3j **1220/2497**; 3k (converters, jolt-t6cr) **1326**;
3l (transients, jolt-kl2l) **1382/2497**, 0 NEW divergences (13 allowlisted:
dynamic vars `*ns*`/`*clojure-version*`/`*unchecked-math*`, var/`*ns*` rendering,
class names, eval-order, with-open — all deferred Phase-2 / dynamic-var gaps).
- inc 3k `host/chez/converters.ss`: `str`/`subs`/`vec`/`keyword`/`symbol`/`compare`/
`int`/`double`/`gensym` (seed natives — `str` reuses the printer, `compare` is the
3-way port, the symbol no-ns sentinel is `#f` to match emit's quoted-symbol
lowering so `(= 'x (symbol "x"))` holds).
- inc 3l `host/chez/transients.ss`: `transient`/`persistent!`/`conj!`/`assoc!`/
`dissoc!`/`disj!`/`pop!` as copy-on-write over the persistent collections (correct
semantics, no in-place perf), plus persistent `disj`. `get`/`count`/`contains?`
are redefined to see THROUGH a transient (frequencies/group-by do `(get tm k)` on a
transient map); `vector?` on a transient vector is false, which group-by relies on.
The remaining buckets are the punch-list the next increments chase: ~360 emit-fail
(genuine host interop — qualified Java/Janet refs, runtime `defmacro`/`eval`, out of
the analyzer's subset) and ~800 runtime crashes, dominated by core fns calling
host-coupled seed natives with no Chez shim yet (transients — inc 3l jolt-kl2l),
plus smaller buckets (`##Inf`/`##NaN` literals → unbound `inf`/`nan`, seq-prim
transducer arities — inc 3m jolt-q3w8; multimethod dispatch — Phase 2 jolt-9ls5).
the analyzer's subset) and ~740 runtime crashes, including `##Inf`/`##NaN` literals →
unbound `inf`/`nan` and seq-prim transducer arities (inc 3m jolt-q3w8), multimethod
dispatch (Phase 2 jolt-9ls5), and more host-coupled natives without a shim.
Two host shims landed with the prelude. `host/chez/atoms.ss`: atom/deref/swap!/
reset! (+ compare-and-set!/swap-vals!/reset-vals!) — host-coupled mutable cells the