Phase 2: Remove dead tree-walk code from eval.sx
eval.sx: 1272 → 846 lines (-33%). sx-browser.js: 392KB → 377KB.
Deleted (superseded by CEK step handlers in cek.sx):
- eval-list: tree-walk dispatch table
- eval-call: tree-walk function dispatch
- sf-if, sf-when, sf-cond (3 variants), sf-case (2 variants)
- sf-and, sf-or, sf-let, sf-begin, sf-quote, sf-quasiquote
- sf-thread-first, sf-set!, sf-define
- ho-map, ho-filter, ho-reduce, ho-some, ho-every, ho-for-each,
ho-map-indexed, call-fn
Kept (still called by CEK as delegates):
- sf-lambda, sf-defcomp, sf-defisland, sf-defmacro, sf-defstyle,
sf-deftype, sf-defeffect, sf-letrec, sf-named-let
- sf-scope, sf-provide, sf-dynamic-wind
- expand-macro, qq-expand, cond-scheme?
- call-lambda, call-component, parse-keyword-args
- Strict mode, type helpers
eval-expr is now a stub overridden by CEK fixup.
All tests unchanged: JS 747/747, Full 864/870, Python 679/679.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
giles
b4df216fae