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rand-nth follows the reference shape; refresh doc counts and the corpus floor

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rand-nth vec'd its argument, so (rand-nth nil) hit index-out-of-bounds
through the empty vector where the reference's (nth coll (rand-int (count
coll))) returns nil (and a set throws) — the last genuinely-fixable row in
the suite baseline; rand-nth is fully clean now. Corpus/README counts
updated to the current ~3570 rows, the run-corpus regression floor raised
from 2730 to 3390 to match current parity, and the stale traceability line
dropped.
This commit is contained in:
Yogthos 2026-07-02 14:32:53 -04:00
parent ab10e68218
commit a67dbdb93d
7 changed files with 3578 additions and 3578 deletions
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4
host/chez/run-corpus.ss
View file

@ -11,7 +11,7 @@
;; reset between cases so there is no leakage — same isolation a fresh process gives.
;;
;; chez --script host/chez/run-corpus.ss
;; JOLT_CHEZ_ZJ_FLOOR=N override the regression floor (default 2730)
;; JOLT_CHEZ_ZJ_FLOOR=N override the regression floor (default 3390)
;; JOLT_CORPUS_LIMIT=N every-Nth stride (fast iteration; floor drops to 0)
;; JOLT_DUMP_CRASH_LABELS=1 list crash + allowlisted labels
(import (chezscheme))
@ -196,7 +196,7 @@
;; Regression floor: fail on any NEW divergence or if pass drops below the floor.
(define base-floor (let ((s (getenv "JOLT_CHEZ_ZJ_FLOOR")))
(if s (string->number s) 2730)))
(if s (string->number s) 3390)))
(define floor (if limit 0 base-floor))
(when (or (> (length diverged) 0) (< pass floor))
(printf "REGRESSION: pass ~a < floor ~a or ~a new divergence(s)\n"

2
host/chez/seed/prelude.ss
View file

@ -361,7 +361,7 @@
(guard (e (#t #f))
(def-var! "clojure.core" "char-name-string" (letrec ((char-name-string (lambda (c) (let fnrec4381 ((c c)) (jolt-get (var-deref "clojure.core" "char-name-strings") c))))) char-name-string)))
(guard (e (#t #f))
(def-var! "clojure.core" "rand-nth" (letrec ((rand-nth (lambda (coll) (let fnrec4382 ((coll coll)) (let* ((v (jolt-invoke (var-deref "clojure.core" "vec") coll))) (jolt-nth v (jolt-invoke (var-deref "clojure.core" "rand-int") (jolt-count v)))))))) rand-nth)))
(def-var! "clojure.core" "rand-nth" (letrec ((rand-nth (lambda (coll) (let fnrec4382 ((coll coll)) (jolt-nth coll (jolt-invoke (var-deref "clojure.core" "rand-int") (jolt-count coll))))))) rand-nth)))
(guard (e (#t #f))
(def-var! "clojure.core" "random-sample" (letrec ((random-sample (case-lambda ((prob) (let fnrec4383 ((prob prob)) (jolt-invoke jolt-filter (lambda (_) (let fnrec4384 ((_ _)) (jolt-n< (jolt-invoke (var-deref "clojure.core" "rand")) prob)))))) ((prob coll) (let fnrec4385 ((prob prob) (coll coll)) (jolt-filter (lambda (_) (let fnrec4386 ((_ _)) (jolt-n< (jolt-invoke (var-deref "clojure.core" "rand")) prob))) coll)))))) random-sample)))
(guard (e (#t #f))