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Bootstrap CEK as default evaluator on both JS and Python sides

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SPEC_MODULES + SPEC_MODULE_ORDER for frames/cek in platform_js.py,
PLATFORM_CEK_JS + CEK_FIXUPS_JS constants, auto-inclusion in
run_js_sx.py, 70+ RENAMES in js.sx. Python: CEK always-include in
bootstrap_py.py, eval_expr/trampoline overridden to cek_run in
platform_py.py with _tree_walk_* preserved for test runners.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
giles
2026-03-14 01:13:11 +00:00
parent f3a9f3ccc0
commit 90febbd91e
7 changed files with 2005 additions and 110 deletions
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38
shared/sx/ref/platform_js.py
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@@ -46,8 +46,14 @@ SPEC_MODULES = {
"router": ("router.sx", "router (client-side route matching)"),
"signals": ("signals.sx", "signals (reactive signal runtime)"),
"page-helpers": ("page-helpers.sx", "page-helpers (pure data transformation helpers)"),
"frames": ("frames.sx", "frames (CEK continuation frames)"),
"cek": ("cek.sx", "cek (explicit CEK machine evaluator)"),
}
# Explicit ordering for spec modules with dependencies.
# Modules listed here are emitted in this order; any not listed use alphabetical.
SPEC_MODULE_ORDER = ["deps", "frames", "page-helpers", "router", "signals", "cek"]
EXTENSION_NAMES = {"continuations"}
CONTINUATIONS_JS = '''
@@ -1476,6 +1482,38 @@ PLATFORM_JS_POST = '''
};'''
PLATFORM_CEK_JS = '''
// =========================================================================
// Platform: CEK module — explicit CEK machine
// =========================================================================
// Standalone aliases for primitives used by cek.sx / frames.sx
var inc = PRIMITIVES["inc"];
var dec = PRIMITIVES["dec"];
var zip_pairs = PRIMITIVES["zip-pairs"];
var continuation_p = PRIMITIVES["continuation?"];
function makeCekContinuation(captured, restKont) {
var c = new Continuation(function(v) { return v !== undefined ? v : NIL; });
c._cek_data = {"captured": captured, "rest-kont": restKont};
return c;
}
function continuationData(c) {
return (c && c._cek_data) ? c._cek_data : {};
}
'''
# Iterative override for cek_run — replaces transpiled recursive version
CEK_FIXUPS_JS = '''
// Override recursive cekRun with iterative loop (avoids stack overflow)
cekRun = function(state) {
while (!cekTerminal_p(state)) { state = cekStep(state); }
return cekValue(state);
};
'''
PLATFORM_DEPS_JS = '''
// =========================================================================
// Platform: deps module — component dependency analysis