lib/guest/reflective/env.sx — added refl-env-find-frame-with (returns
the scope where NAME is bound, or nil). Needed by consumers like
Smalltalk that mutate variables at the source frame rather than
shadowing at the current one. Also added refl-env-find-frame for
the canonical shape.
lib/smalltalk/eval.sx — new st-frame-cfg adapter for the kit.
st-lookup-local now delegates parent-walk to refl-env-find-frame-with
while preserving its Smalltalk-flavoured {:found :value :frame}
return shape (which is used to mutate at the binding's source
frame, not the current one).
lib/smalltalk/test.sh + compare.sh — load lib/guest/reflective/env.sx
before lib/smalltalk/eval.sx.
Three genuinely different wire shapes now share the parent-walk:
- Kernel: {:refl-tag :env :bindings :parent} mutable bindings
- Tcl: {:level :locals :parent} functional update
- Smalltalk: {:self :method-class :locals :parent mutable bindings,
:return-k :active-cell} rich metadata
All three consumers' full test suites unchanged: Smalltalk 847/847,
Kernel 322/322, Tcl 427/427. The cfg adapter pattern (modelled after
lib/guest/match.sx) cleanly handles all three.
Phase 1 of the lib-guest-reflective extraction plan.
lib/guest/reflective/env.sx — canonical wire shape
{:refl-tag :env :bindings DICT :parent ENV-OR-NIL} with mutable
defaults (dict-set!), plus *-with adapter-cfg variants for consumers
with their own shape (modelled after lib/guest/match.sx). 13 forms,
~5 KB.
lib/kernel/eval.sx — env block collapses from ~30 lines to 6 thin
wrappers (kernel-env? = refl-env?, etc.). No semantic change; envs
now carry :refl-tag :env instead of :knl-tag :env. All 322 Kernel
tests pass unchanged across 7 suites (parse 62, eval 36, vau 38,
standard 127, encap 19, hygiene 26, metacircular 14).
Next: Phase 2 — Tcl adapter cfg in lib/tcl/runtime.sx using
refl-env-lookup-with against the existing :level/:locals/:parent
frame shape.
