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Chez Phase 2 (inc O): host String methods (jolt-nfca)

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Port the java.lang.String/CharSequence method surface to the Chez RT so
(.toUpperCase s), (.substring s a b), (.indexOf s x), the regex methods
(.matches/.replaceAll/.replaceFirst/.split), etc. run on a string target.

natives-str.ss holds jolt-string-method, ported from the seed's surface in
eval_resolve.janet: ASCII case mapping (byte-oriented like the seed), -1 on
indexOf miss, flonum numeric returns to match jolt's number model, Scheme
chars for charAt, and the regex methods over the irregex compiled via
jolt-re-pattern. record-method-dispatch gains a string? arm that falls
through to it (unsupported methods still throw).

Corpus prelude floor 2002 -> 2026 (+24), 0 new divergences. _str 27/27 vs
build/jolt; full jpm test + conformance x3 green.

The (. x m) dot-form (the . special form, distinct from .method sugar) and
the clojure.string namespace (needs prelude plumbing + Pattern) stay deferred.
This commit is contained in:
Yogthos 2026-06-18 20:36:39 -04:00
parent b7158e0690
commit 3ab53ba938
6 changed files with 209 additions and 2 deletions
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6
host/chez/rt.ss
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@ -265,3 +265,9 @@
;; frame is seen by every var read. Loaded LAST: needs the fully-extended var-read
;; paths + jolt-hash-map/pmap-fold/pmap-assoc (collections.ss).
(load "host/chez/dyn-binding.ss")
;; java.lang.String method interop (jolt-nfca, Phase 2): jolt-string-method, the
;; portable String/CharSequence surface record-method-dispatch falls through to on
;; a string target. After regex.ss (jolt-re-pattern/regex-t-irx) + records.ss
;; (which references jolt-string-method).
(load "host/chez/natives-str.ss")