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Replace str-render/instance-check set! chains with registries

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jolt-str-render-one and instance-check were each extended by a chain of
set!-wrapping closures spread across ~10 and ~5 host files, so the real
behavior of either was scattered and load-order-dependent. Give each a
registry the base file owns: converters.ss/records-interop.ss define the
registry plus a register-* helper, and each extending file registers one arm
instead of capturing %prev and set!-ing the global.

str-render arms are type-disjoint; instance-check arms run newest-first (the
old outermost-wins order) and may return 'pass to defer. The string-token ->
symbol normalization the natives-array arm did for every inner arm moves to
the dispatcher head; array tokens stay strings for that arm to decide.

jolt-ogib.14. Runtime-only shims, no re-mint.
This commit is contained in:
Yogthos 2026-06-23 09:05:36 -04:00
parent bc16513afd
commit e434356590
14 changed files with 79 additions and 64 deletions
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3
host/chez/vars.ss
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@ -45,8 +45,7 @@
(set! jolt-pr-str (lambda (x) (if (var-cell? x) (var->str x) (%v-pr-str x))))
(define %v-pr-readable jolt-pr-readable)
(set! jolt-pr-readable (lambda (x) (if (var-cell? x) (var->str x) (%v-pr-readable x))))
(define %v-str-render-one jolt-str-render-one)
(set! jolt-str-render-one (lambda (x) (if (var-cell? x) (var->str x) (%v-str-render-one x))))
(register-str-render! var-cell? var->str)
;; bound? — native (the overlay's (get v :root) is nil on a var-cell record).
(define (jolt-var-bound-one? v) (and (var-cell? v) (not (eq? (var-cell-root v) jolt-unbound))))