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fix: transducers/reduce short-circuit over infinite seqs via reduced

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transduce-reduce and core-reduce both called realize-for-iteration, fully
realizing the coll before the reduce loop — so an infinite lazy seq hung before
the reduced short-circuit could fire. (into [] (take 5) (range)) etc. never
terminated.

Add reduce-with-reduced, which steps a lazy seq one cell at a time
(realize-ls/ls cell protocol), checking reduced? after each element so a take/
take-while transducer (or any reducing fn returning reduced) terminates over an
infinite seq. Route transduce-reduce and both core-reduce arities through it;
2-arg reduce now seeds from the first element and reduces the rest lazily.

spec: transducers/short-circuit + reduce/honors-reduced (13 cases).
clojure-test-suite timeouts 7->6, pass 1683->1688. jpm test green.

Fixes jolt-kxb.
This commit is contained in:
Yogthos 2026-06-05 09:18:35 -04:00
parent ae2899ba61
commit 2885650ef6
3 changed files with 69 additions and 25 deletions
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.beads/issues.jsonl
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@ -5,7 +5,7 @@
{"_type":"issue","id":"jolt-x8s","title":"CRITICAL: collections not callable as IFn (vector/map/set)","status":"closed","priority":1,"issue_type":"bug","owner":"yogthos@gmail.com","created_at":"2026-06-04T17:46:14Z","created_by":"Yogthos","updated_at":"2026-06-04T17:50:54Z","closed_at":"2026-06-04T17:50:54Z","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-alz","title":"CRITICAL: self-referential lazy-seq/lazy-cat yields only literal prefix","status":"closed","priority":1,"issue_type":"bug","owner":"yogthos@gmail.com","created_at":"2026-06-04T17:46:13Z","created_by":"Yogthos","updated_at":"2026-06-04T18:09:15Z","closed_at":"2026-06-04T18:09:15Z","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-wec","title":"CRITICAL: multi-collection map returns unrealized thunk","status":"closed","priority":1,"issue_type":"bug","owner":"yogthos@gmail.com","created_at":"2026-06-04T17:46:12Z","created_by":"Yogthos","updated_at":"2026-06-04T18:06:02Z","closed_at":"2026-06-04T18:06:02Z","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-kxb","title":"clojure-test-suite: transducers don't short-circuit over infinite seqs (hangs)","description":"(into [] (take 5) (range)) and similar transducer-over-infinite forms hang jolt's eager evaluator (no reduced/early-termination). 7 suite files time out. Make transducing honor reduced.","status":"open","priority":2,"issue_type":"bug","owner":"yogthos@gmail.com","created_at":"2026-06-05T13:05:18Z","created_by":"Yogthos","updated_at":"2026-06-05T13:05:18Z","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-kxb","title":"clojure-test-suite: transducers don't short-circuit over infinite seqs (hangs)","description":"(into [] (take 5) (range)) and similar transducer-over-infinite forms hang jolt's eager evaluator (no reduced/early-termination). 7 suite files time out. Make transducing honor reduced.","status":"in_progress","priority":2,"issue_type":"bug","assignee":"Yogthos","owner":"yogthos@gmail.com","created_at":"2026-06-05T13:05:18Z","created_by":"Yogthos","updated_at":"2026-06-05T13:09:59Z","started_at":"2026-06-05T13:09:59Z","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-js6","title":"Port clojure-test-suite as integration battery","description":"Build a minimal clojure.test + portability shim so Jolt can load the external ~/src/clojure-test-suite (240 per-fn .cljc files in clojure.test format). Add a baseline-guarded integration runner following the jank-conformance pattern (skip if absent).","status":"closed","priority":2,"issue_type":"task","assignee":"Yogthos","owner":"yogthos@gmail.com","created_at":"2026-06-05T12:22:01Z","created_by":"Yogthos","updated_at":"2026-06-05T13:05:04Z","started_at":"2026-06-05T12:22:14Z","closed_at":"2026-06-05T13:05:04Z","close_reason":"Ported clojure-test-suite as baseline-guarded integration battery; surfaced+fixed 2 evaluator macro bugs","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-i3g","title":"Clear final 2 SCI bootstrap forms (Var/IVar collision + clojure.repl/template)","description":"namespaces.cljc forms 126/127 fail: (126) lang_stubs IVar collides with real vars.cljc IVar so unbind dispatch misses on sci.lang.Var; (127) clojure.repl + clojure.template namespaces missing. Fix: trim bootstrap stubs to let real modules own canonical protocols/types; port clojure.repl + clojure.template.","status":"closed","priority":2,"issue_type":"task","owner":"yogthos@gmail.com","created_at":"2026-06-05T03:21:40Z","created_by":"Yogthos","updated_at":"2026-06-05T03:35:43Z","closed_at":"2026-06-05T03:35:43Z","close_reason":"Done — SCI bootstrap now loads 422/422 with 0 failures. Fixed deftype protocol-method registration, with-meta on functions, select-keys over vectors, require :as+:refer, defmethod-on-fn; added clojure.set/join and host-module stubs. test-load-sci asserts 0 failures.","dependency_count":0,"dependent_count":0,"comment_count":0}
{"_type":"issue","id":"jolt-ns4","title":"Persistent collections + build-time mutable/immutable toggle","description":"Add JOLT_MUTABLE build flag (config.janet). Fix list-mutation bug (conj mutated original). Round 2: structural-sharing persistent vector (32-way trie) hooked into all core ops. Round 3: persistent lists / HAMT maps.","notes":"R1 (build flag + list mutation fix) and R2 (structural-sharing persistent vectors + mutable toggle) done \u0026 pushed (1eb2843). Immutable: conformance 206/206, features 71/71, jank 119. R3 (persistent linked lists) pending user decision: lists are immutable Janet arrays — O(1) sharing cons, O(n) conj.","status":"closed","priority":2,"issue_type":"feature","owner":"yogthos@gmail.com","created_at":"2026-06-04T22:15:39Z","created_by":"Yogthos","updated_at":"2026-06-04T23:20:46Z","closed_at":"2026-06-04T23:20:46Z","close_reason":"Done across 3 rounds (pushed a0c9696): build-time mutable/immutable toggle, structural-sharing persistent vectors (32-way trie), and persistent O(1)-prepend linked lists. Plus bit-clear/get-method and a batch of missing core fns. conformance 206/206, features 78/78, jank 120.","dependency_count":0,"dependent_count":0,"comment_count":0}