Phase 1 Step 1 of the architecture roadmap. The old cssx.sx
(cssx-resolve, cssx-process-token, cssx-template, old tw function)
is superseded by the ~tw component system in tw.sx.
- Delete shared/sx/templates/cssx.sx
- Remove cssx.sx from all load lists (sx_server.ml, run_tests.ml,
mcp_tree.ml, compile-modules.js, bundle.sh, sx-build-all.sh)
- Replace (tw "tokens") inline style calls with (~tw :tokens "tokens")
in layouts.sx and not-found.sx
- Remove _css-hash / init-css-tracking / SX-Css header plumbing
(dead code — ~tw/flush + flush-collected-styles handle CSS now)
- Remove sx-css-classes param and meta tag from shell template
- Update stale data-cssx references to data-sx-css in tests
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
signal-add-sub! used (append! subscribers f) which returns a new list
for immutable List but discards the result — after signal-remove-sub!
replaces the subscribers list via dict-set!, re-adding subscribers
silently fails. Counter island only worked once (0→1 then stuck).
Fix: use (dict-set! s "subscribers" (append ...)) to explicitly update
the dict field, matching signal-remove-sub!'s pattern.
Build pipeline fixes:
- sx-build-all.sh now bundles spec→dist and recompiles .sxbc bytecode
- compile-modules.js syncs .sx source files alongside .sxbc to wasm/sx/
- Per-file cache busting: wasm, platform JS, and sxbc each get own hash
- bundle.sh adds cssx.sx to dist
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
JIT compiler:
- Fix jit_compile_lambda: resolve `compile` via symbol lookup in env
instead of embedding VmClosure in AST (CEK dispatches differently)
- Register eval-defcomp/eval-defisland/eval-defmacro runtime helpers
in browser kernel for bytecoded defcomp forms
- Disable broken .sxbc.json path (missing arity in nested code blocks),
use .sxbc text format only
- Mark JIT-failed closures as sentinel to stop retrying
CSSX in browser:
- Add cssx.sx symlink + cssx.sxbc to browser web stack
- Add flush-cssx! to orchestration.sx post-swap for SPA nav
- Add cssx.sx to compile-modules.js and mcp_tree.ml bytecode lists
SPA navigation:
- Fix double-fetch: check e.defaultPrevented in click delegation
(bind-event already handled the click)
- Fix layout destruction: change nav links from outerHTML to innerHTML
swap (outerHTML destroyed #main-panel when response lacked it)
- Guard JS popstate handler when SX engine is booted
- Rename sx-platform.js → sx-platform-2.js to bust immutable cache
Playwright tests:
- Add trackErrors() helper to all test specs
- Add SPA DOM comparison test (SPA nav vs fresh load)
- Add single-fetch + no-duplicate-elements test
- Improve MCP tool output: show failure details and error messages
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Rewrite compile-modules.js to use the native OCaml sx_server binary
instead of the js_of_ocaml kernel in Node.js. Compiles 23 modules in
23s (was 3+ minutes). Uses batch epoch protocol with latin1 encoding
to preserve byte positions for multi-byte UTF-8 content.
- Add compile-blob server command: parse source natively, compile via
SX compile-module, return bytecode dict
- Fix orchestration.sxbc.json and boot.sxbc.json — never compiled
successfully with the old JS kernel, now work with native compiler
- Auto-copy compiled bytecode to shared/static/wasm/sx/ for serving
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Bytecode modules are now serialized as s-expressions (.sxbc) in addition
to JSON (.sxbc.json). The .sxbc format is the canonical representation —
content-addressable, parseable by the SX parser, and suitable for CID
referencing. Annotation layers (source maps, variable names, tests, docs)
can reference the bytecode CID without polluting the bytecode itself.
Format: (sxbc version hash (code :arity N :bytecode (...) :constants (...)))
The browser loader tries .sxbc first (via load-sxbc kernel primitive),
falls back to .sxbc.json. Caddy needs .sxbc MIME type to serve the new
format (currently 404s, JSON fallback works).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- sx_browser.ml: add api_load_module (execute pre-compiled bytecode on VM,
copy defines back to env) and api_compile_module (compile SX source to
bytecode via compile-module function)
- compile-modules.js: Node.js build tool that loads the js_of_ocaml kernel,
compiles all 23 .sx platform files to bytecode, writes .sxbc.json files
- Serialization format: type-tagged JSON constants (s/n/b/nil/sym/kw/list/code)
with nested code objects for lambda closures
All 23 files compile successfully (430K total bytecode JSON).
Next: wire up sx-platform.js to load bytecode instead of source.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
