Yogthos cbb0f2ab4a Chez Phase 1 (increment 3o): transducer arities ... The 1-arg map/filter/remove/take/drop/take-while/drop-while/mapcat now return a transducer (fn [rf] rf'), and into gets a 3-arg (into to xform from). This was the 'cdr () is not a pair' / 'incorrect number of arguments' crash bucket: the emitter lowers (map f) and 3-arg into at an arity the native-op gate rejects, so they fall to the value-position path and hit the bare jolt-map/jolt-into procedure at the wrong arity. The fix is RT-side — case-lambda those procedures plus jolt-into. td-* factories ported from the seed (core_coll.janet); a reduced step stops the fold via reduce-seq's existing short-circuit (inc 3n). transduce/comp/completing are overlay and compose over these unchanged. Parity 1467 -> 1493/2497, 0 new divergences. emit-test 278/278.		2026-06-17 23:51:06 -04:00
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chez	Chez Phase 1 (increment 3o): transducer arities	2026-06-17 23:51:06 -04:00