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lib/guest/reflective/quoting.sx — quasiquote walker with adapter cfg.
Three forms:
- refl-quasi-walk-with CFG FORM ENV (top-level)
- refl-quasi-walk-list-with CFG FORMS ENV (list walker, splice-aware)
- refl-quasi-list-concat XS YS (pure-SX helper)
Adapter cfg keys:
- :unquote-name — string keyword ("$unquote" or "unquote")
- :unquote-splicing-name — string keyword
- :eval — fn (form env) → value
The shared algorithm is identical in Kernel and Scheme; the only
divergences are the keyword names (`$unquote` vs `unquote`) and
which host evaluator runs at unquote points (`kernel-eval` vs
`scheme-eval`). Both surface through the cfg.
Migrations:
- lib/kernel/runtime.sx: knl-quasi-walk reduces to a 3-line wrapper
that builds knl-quasi-cfg and delegates. Removed knl-quasi-walk-
list + knl-list-concat (~40 LoC) — now provided by the kit.
- lib/scheme/eval.sx: scm-quasi-walk reduces to a 3-line wrapper
around scm-quasi-cfg. Removed scm-quasi-walk-list + scm-list-
concat. scm-collect-exports (module impl) was a hidden consumer
of scm-list-concat — rewired to refl-quasi-list-concat.
lib/scheme/test.sh — loads lib/guest/reflective/quoting.sx before
lib/scheme/parser.sx so the kit is available when eval.sx loads.
Both consumers' tests green:
- Kernel: 322 tests across 7 suites
- Scheme: 296 tests across 9 suites
**Second reflective-kit extraction landed.** The kit-extraction
playbook from env.sx and class-chain.sx — adapter-cfg pattern from
lib/guest/match.sx, same algorithm bridges different keyword names —
works again on a third structurally different problem (quasiquote
walking). The cumulative extraction story: env.sx → class-chain.sx
→ quoting.sx, three independent kits, all using the same pattern.
`evaluator.sx` (the other deferred candidate the Scheme port
unlocked) is NOT extracted — the genuinely shared content is too
thin (one helper for closure-capturing interaction-environment).
The eval-protocol is more about API surface than algorithm.
Documented as a non-extraction.