Fourth pure-fn batch (jolt-1j0 phase 2), 6 leaf fns. distinct? now uses
value-semantics (the prior Janet impl keyed a table by identity, so equal
collections compared distinct); nthnext uses the canonical loop form, which
fixes (nthnext nil nil) => nil and the nil-count cases the prior pre-check threw
on. replace preserves nil values via get-with-default.
conformance 218/218 x3, clojure-test-suite 3927 -> 3928 (canonical nthnext),
core-bench A/B flat. Per-batch gate caught a transient -1 from the first
nthnext rewrite; fixed before commit.
Second pure-fn batch (jolt-1j0 phase 2). All leaf fns; canonical Clojure defs.
split-with now returns seqs for the parts (drop-while is a seq), matching
Clojure rather than the prior all-vector result — value-equal either way.
conformance 218/218 x3, clojure-test-suite 3927, core-bench 2333ms (~baseline).
First pure-fn migration batch. Both are leaf fns (no internal Janet callers);
the Clojure defs (not . some / not . every?) match the prior Janet behavior.
Removed the core-* defns and their core-bindings entries.
conformance 218/218 x3, clojure-test-suite 3927, core-bench 2340ms vs 2336ms
baseline (noise).
Three pure function combinators into the collection tier, as compositions of
mapv/every?/some/apply. Three more core-* primitives + table entries gone.
Battery 3916 -> 3920 (the canonical defs are more correct than the prior Janet
ones — some-fn returns the matching value, every-pred is properly boolean).
Conformance 218/218 all modes.
New collection tier (core/20-coll.clj): six pure, eager fns expressed as
compositions of frozen primitives (reduce/assoc/get/conj/filter/vec). Six more
core-* primitives + table entries gone from the Janet kernel.
Two semantics to preserve, caught by the suite:
- max-key/min-key use the canonical multi-arity form (strict </> on the first
pair, <=/>= in the fold) to reproduce the JVM IEEE-754 NaN behavior; a single
reduce got the NaN cases wrong.
- frequencies/group-by base on (hash-map), not the {} literal: a struct map
doesn't canonicalize collection keys across representations ({:a 1} literal vs
(hash-map :a 1)), a PHM does — same reason the Janet impl used make-phm.
Conformance 218/218 all modes; battery holds 3916.
