Higher-order forms now step element-by-element through the CEK machine
using dedicated frames instead of delegating to tree-walk ho-map etc.
Each callback invocation goes through continue-with-call, so deref-as-shift
works inside map/filter/reduce callbacks in reactive island contexts.
- cek.sx: rewrite step-ho-* to use CEK frames, add frame handlers in
step-continue for map, filter, reduce, for-each, some, every
- frames.sx: add SomeFrame, EveryFrame, MapIndexedFrame
- test-cek-reactive.sx: add 10 tests for CEK-native HO forms
89 tests pass (20 signal + 43 CEK + 26 CEK reactive).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
All signal operations (computed, effect, batch, etc.) now dispatch
function calls through cek-call, which routes SX lambdas via cek-run
and native callables via apply. This replaces the invoke shim.
Key changes:
- cek.sx: add cek-call (defined before reactive-shift-deref), replace
invoke in subscriber disposal and ReactiveResetFrame handler
- signals.sx: replace all 11 invoke calls with cek-call
- js.sx: fix octal escape in js-quote-string (char-from-code 0)
- platform_js.py: fix JS append to match Python (list concat semantics),
add Continuation type guard in PLATFORM_CEK_JS, add scheduleIdle
safety check, module ordering (cek before signals)
- platform_py.py: fix ident-char regex (remove [ ] from valid chars),
module ordering (cek before signals)
- run_js_sx.py: emit PLATFORM_CEK_JS before transpiled spec files
- page-functions.sx: add cek and provide page functions for SX URLs
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
frames.sx: ReactiveResetFrame + DerefFrame constructors,
kont-capture-to-reactive-reset, has-reactive-reset-frame?.
cek.sx: deref as CEK special form, step-sf-deref pushes DerefFrame,
reactive-shift-deref captures continuation as signal subscriber,
ReactiveResetFrame in step-continue calls update-fn on re-render.
adapter-dom.sx: cek-reactive-text/cek-reactive-attr using cek-run
with ReactiveResetFrame for implicit DOM bindings.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
