Commit Graph

70 Commits

Author SHA1 Message Date
4082561438 Rebuild WASM artifacts after 10d bytecode expansion
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 14:38:28 +00:00
a74c983615 Step 10d: fix scope form compilation for non-keyword args
compile-expr args instead of keyword-name — handles (context "name"),
(context var), and (context :name) uniformly. Fixes freeze.sx .sxbc
compilation (was failing with "keyword-name: expected keyword").

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 13:28:17 +00:00
fb262aa49b Step 10c: batch coalescing + global subscriber registry
Provide subscribers stored in global *provide-subscribers* dict (keyed
by name) instead of on provide frames. Fixes subscriber loss when
frames are reconstructed, and enables cross-cek_run notification.

Batch integration: batch-begin!/batch-end! primitives manage
*provide-batch-depth*. fire-provide-subscribers defers to queue when
depth > 0, batch-end! flushes deduped. signals.sx batch calls both.

context now prefers scope-peek over frame value — scope stack is the
source of truth since provide! always updates it (even in nested
cek_run where provide frames aren't on the kont).

2754/2768 OCaml (14 pre-existing). 32/32 WASM.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 11:39:38 +00:00
44b520a9e9 Step 10c: fix bind subscriber re-evaluation — track names not frames
Root cause: context called inside lambdas (e.g. swap!) went through
nested cek_run with empty kont, so provide frames weren't found and
never tracked to *bind-tracking*.

Three changes in evaluator.sx:
- step-sf-context: track context names (not frames) to *bind-tracking*
  — names work across cek_run boundaries via scope-peek fallback
- bind continue: resolve tracked names to frames via kont-find-provide
  on rest-k before registering subscribers
- subscriber: use empty kont instead of kont-extract-provides — old
  approach created provide frames whose continue handlers called
  scope-pop!, corrupting the scope stack

2752/2768 OCaml tests pass (all 7 bind subscriber tests fixed).
32/32 WASM native tests pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-05 11:05:17 +00:00
5ac1ca9756 Fix server import suspension, dist sync, JIT errors
- cek_run patched to handle import suspensions via _import_hook.
  define-library (import ...) now resolves cleanly on the server.
  IO suspension errors: 190 → 0. JIT failures: ~50 → 0.
- _import_hook wired in sx_server.ml to load .sx files on demand.
- compile-modules.js syncs source .sx files to dist/sx/ before
  compiling — eliminates stale bytecode from out-of-date copies.
- WASM binary rebuilt with all fixes.
- 2658/2658 tests pass (8 new — previously failing import tests).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 22:52:41 +00:00
2f3e727a6f Transparent lazy module loading — code loads like data
When the VM or CEK hits an undefined symbol, it checks a symbol→library
index (built from manifest exports at boot), loads the library that
exports it, and returns the value. Execution continues as if the module
was always loaded. No import statements, no load-library! calls, no
Suspense boundaries — just call the function.

This is the same mechanism as IO suspension for data fetching. The
programmer doesn't distinguish between calling a local function and
calling one that needs its module fetched first. The runtime treats
code as just another resource.

Implementation:
- _symbol_resolve_hook in sx_types.ml — called by env_get_id (CEK path)
  and vm_global_get (VM path) when a symbol isn't found
- Symbol→library index built from manifest exports in sx-platform.js
- __resolve-symbol native calls __sxLoadLibrary, module loads, symbol
  appears in globals, execution resumes
- compile-modules.js extracts export lists into module-manifest.json
- Playground page demonstrates: (freeze-scope) triggers freeze.sxbc
  download transparently on first use

2650/2650 tests pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 22:23:45 +00:00
9b060ef8c5 Bytecode compiler: desugar let-match, fix SPA navigation
The bytecode compiler now handles let-match (both variants):
- Variant 1: (let-match name expr {:k v} body...) — named binding + destructure
- Variant 2: (let-match {:k v} expr body...) — pattern-only destructure

Desugars to sequential let + get calls — no new opcodes needed.

This was the last blocker for SPA navigation. The bytecoded orchestration
and router modules used let-match which compiled to CALL_PRIM "let-match"
(undefined at runtime). Now desugared at compile time.

Also synced dist/sx/ sources with web/ and recompiled all 26 .sxbc modules.

2650/2650 tests pass.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 21:31:17 +00:00
2727577702 VM import suspension for browser lazy loading
Bytecode compiler now emits OP_PERFORM for (import ...) and compiles
(define-library ...) bodies. The VM stores the import request in
globals["__io_request"] and stops the run loop — no exceptions needed.
vm-execute-module returns a suspension dict, vm-resume-module continues.

Browser: sx_browser.ml detects suspension dicts from execute_module and
returns JS {suspended, op, request, resume} objects. The sx-platform.js
while loop handles cascading suspensions via handleImportSuspension.

13 modules load via .sxbc bytecode in 226ms (manifest-driven), both
islands hydrate, all handlers wired. 2650/2650 tests pass including
6 new vm-import-suspension tests.

Also: consolidated sx-platform-2.js → sx-platform.js, fixed
vm-execute-module missing code-from-value call, fixed bootstrap.py
protocol registry transpiler issues.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 17:11:12 +00:00
e46cdf3d4d Wire transpiled VM as active execute_module — 2644 tests pass
The transpiled VM (sx_vm_ref.ml, from lib/vm.sx) is now the ACTIVE
bytecode execution engine. sx_server.ml and sx_browser.ml call
Sx_vm_ref.execute_module instead of Sx_vm.execute_module.

Results:
- OCaml tests: 2644 passed, 0 failed
- WASM tests: 32 passed, 0 failed
- Browser: zero errors, zero warnings, islands hydrate
- Server: pages render, JIT compiles, all routes work

The VM logic now lives in ONE place: lib/vm.sx (SX).
OCaml gets it via transpilation (bootstrap_vm.py).
JS/browser gets it via bytecode compilation (compile-modules.js).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 13:34:11 +00:00
cd61c049e3 vm.sx feature parity: JIT dispatch, active VM tracking, CEK fallback
Add missing features to lib/vm.sx that sx_vm.ml has:
- *active-vm* mutable global for HO primitive callback VM reuse
- *jit-compile-fn* platform-settable JIT compilation hook
- try-jit-call: check lambda-compiled, attempt JIT, fallback to CEK
- vm-call: VmClosure→push-frame, Lambda→try-jit, Component→CEK
- vm-call-closure: save/restore *active-vm* around execution
- vm-push-frame: refactored to use accessor functions
- cek-call-or-suspend: preamble-provided CEK interop

Transpiled output (sx_vm_ref.ml) now has 12 functions (was 9):
  *active-vm*, *jit-compile-fn*, try-jit-call, vm-call,
  vm-resolve-ho-form, vm-call-external, env-walk, env-walk-set!,
  vm-run, vm-step, vm-call-closure, vm-execute-module

48 preamble functions (native OCaml type access).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 13:00:07 +00:00
fc2b5e502f Step 5p6 lazy loading + Step 6b VM transpilation prep
Lazy module loading (Step 5 piece 6 completion):
- Add define-library wrappers + import declarations to 13 source .sx files
- compile-modules.js generates module-manifest.json with dependency graph
- compile-modules.js strips define-library/import before bytecode compilation
  (VM doesn't handle these as special forms)
- sx-platform.js replaces hardcoded 24-file loadWebStack() with manifest-driven
  recursive loader — only downloads modules the page needs
- Result: 12 modules loaded (was 24), zero errors, zero warnings
- Fallback to full load if manifest missing

VM transpilation prep (Step 6b):
- Refactor lib/vm.sx: 20 accessor functions replace raw dict access
- Factor out collect-n-from-stack, collect-n-pairs, pad-n-nils helpers
- bootstrap_vm.py: transpiles 9 VM logic functions to OCaml
- sx_vm_ref.ml: proof that vm.sx transpiles (preamble has stubs)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 12:18:41 +00:00
7b4c918773 Recompile all 26 .sxbc with define-library wrappers + fix eval/JIT
All 26 browser modules recompiled with define-library/import forms.
Compilation works without vm-compile-adapter (JIT pre-compilation
hangs with library wrappers in some JIT paths — skipped for now,
CEK compilation is ~34s total).

Key fixes:
- eval command: import-aware loop that handles define-library/import
  locally without touching the Python bridge pipe (avoids deadlock)
- compile-modules.js: skip vm-compile-adapter, bump timeout

2621/2621 OCaml tests passing.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-04 00:08:00 +00:00
ede05c26f5 IO registry: defio declares platform suspension points
Core SX has zero IO — platforms extend __io-registry via (defio name
:category :data/:code/:effect ...). The server web platform declares 44
operations in web/io.sx. batchable_helpers now derived from registry
(:batchable true) instead of hardcoded list. Startup validation warns if
bound IO ops lack registry entries. Browser gets empty registry, ready
for step 5 (IO suspension).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 23:21:48 +00:00
869f49bc01 Merge sx-tools: test coverage + bug fixes + Playwright fixes
- 7 new test files (~268 tests): stdlib, adapter-html, adapter-dom,
  boot-helpers, page-helpers, layout, tw-layout
- Fix component-pure? transitive scan, render-target crash on unknown
  components, &rest param binding (String vs Symbol), swap! extra args
- Fix 5 Playwright marshes tests: timing + test logic
- 2522/2522 OCaml tests, 173/173 Playwright tests

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

# Conflicts:
#	shared/static/wasm/sx/orchestration.sxbc
#	shared/static/wasm/sx_browser.bc.js
#	shared/static/wasm/sx_browser.bc.wasm.js
#	sx/sx/not-found.sx
#	tests/playwright/isomorphic.spec.js
2026-04-02 18:59:45 +00:00
6d5c410d68 Uncommitted sx-tools changes: WASM bundles, Playwright specs, engine fixes
WASM browser bundles rebuilt with latest kernel. Playwright test specs
updated (helpers, navigation, handler-responses, hypermedia-handlers,
isomorphic, SPA navigation). Engine/boot/orchestration SX files updated.
Handler examples and not-found page refreshed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 18:58:38 +00:00
a64b693a09 Remove old CSSX system — ~tw is the sole CSS engine
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>
2026-04-02 16:18:07 +00:00
670295bf01 Fix CSS styles lost during SPA navigation
The text/sx AJAX response path (handle-sx-response) never called
hoist-head-elements, so <style> elements stayed in #sx-content instead
of moving to <head>. Additionally, CSS rules collected during client-side
island hydration were never flushed to the DOM.

- Add hoist-head-elements call to handle-sx-response (matching
  handle-html-response which already had it)
- Add flush-collected-styles helper that drains collected CSS rules
  into a <style data-sx-css> element in <head>
- Call flush after island hydration in post-swap, boot-init, and
  run-post-render-hooks to catch reactive re-renders
- Unify on data-sx-css attribute (existing convention) in ~tw/flush
  and shell template, removing the ad-hoc data-cssx attribute

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 16:08:22 +00:00
1098dd3794 Revert render-dom-lake to original, simplify stepper lake
Reverted render-dom-lake SSR reuse — it broke OOB swaps (claimed
old lake elements during morph, stale content in copyright). The
framework's morphing handles lake updates correctly already.

Stepper: lake passes nil on client (prevents raw SX flash), effect
always calls rebuild-preview (no initial-render flag needed). Server
renders the expression for SSR; client rebuilds via render-to-dom
after boot when ~tw is available.

Removed initial-render dict flag — unnecessary complexity.

Copyright route not updating is a pre-existing issue: render-dom-island
renders the header island inline during OOB content rendering (sets
island-hydrated mark), but the copyright lake content doesn't reflect
the new path. Separate investigation needed.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:59:39 +00:00
c578dedbcc Revert render-dom-lake child re-rendering — broke stepper preview
The change to re-render children when non-empty caused the stepper's
lake to show raw SX again (the ~tw expressions in steps-to-preview
were rendered as text). Reverted to the simpler approach: reuse the
existing SSR element and preserve its content entirely.

The copyright route not updating during SPA nav is a pre-existing
issue (path is an island parameter, not a reactive signal).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:41:31 +00:00
bea8779aea render-dom-lake: mark reused lakes to prevent SPA nav conflicts
After reusing an SSR lake element, set data-sx-lake-claimed attribute.
Subsequent dom-query uses :not([data-sx-lake-claimed]) to skip already-
reused elements, preventing SPA navigation from picking up stale lakes
from previous pages.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:30:50 +00:00
547d271571 Fix stepper: lake SSR preservation + stack rebuild after stepping
Three fixes:

1. Framework: render-dom-lake preserves SSR elements during hydration.
   When client-side render-to-dom encounters a lake with an existing
   DOM element (from SSR), it reuses that element instead of creating
   a new one. This prevents the SSR HTML from being replaced with
   unresolvable raw SX expressions (~tw calls).

2. Stepper: skip rebuild-preview on initial hydration. Uses a non-
   reactive dict flag (not a signal) to avoid triggering the effect
   twice. On first run, just initializes the DOM stack from the
   existing SSR content by computing open-element depth from step
   types and walking lastElementChild.

3. Stepper: rebuild-preview computes correct DOM stack after re-render.
   Same depth computation + DOM walk approach. This fixes the bug where
   do-step after do-back would append elements to the wrong parent
   (e.g. "sx" span outside h1).

Also: increased code view font-size from 0.5rem to 0.85rem.

Playwright tests:
- lake never shows raw SX during hydration (mutation observer)
- back 6 + forward 6 keeps all 4 spans inside h1

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 15:18:16 +00:00
58a122a73a Fix stepper: mutable-list for append! in split-tag and steps-to-preview
The stepper's split-tag and steps-to-preview used (list) with append!,
but in the WASM kernel (list) creates immutable List values — append!
returns a new list without mutating, so children accumulate nowhere.

Changed all accumulator initializations to (mutable-list):
- split-tag: cch, cat, spreads
- steps-to-preview: bc-loop inner children, initial call
- result and tokens lists in the parsing setup

Also includes WASM rebuild with append! primitive and &rest fixes.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 13:33:15 +00:00
d40a9c6796 sx-tools: WASM kernel updates, TW/CSSX rework, content refresh, new debugging tools
Build tooling: updated OCaml bootstrapper, compile-modules, bundle.sh, sx-build-all.
WASM browser: rebuilt sx_browser.bc.js/wasm, sx-platform-2.js, .sxbc bytecode files.
CSSX/Tailwind: reworked cssx.sx templates and tw-layout, added tw-type support.
Content: refreshed essays, plans, geography, reactive islands, docs, demos, handlers.
New tools: bisect_sxbc.sh, test-spa.js, render-trace.sx, morph playwright spec.
Tests: added test-match.sx, test-examples.sx, updated test-tw.sx and web tests.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 11:31:57 +00:00
7651260fc7 Fix CSS styles lost during SPA navigation
The text/sx AJAX response path (handle-sx-response) never called
hoist-head-elements, so <style> elements stayed in #sx-content instead
of moving to <head>. Additionally, CSS rules collected during client-side
island hydration were never flushed to the DOM.

- Add hoist-head-elements call to handle-sx-response (matching
  handle-html-response which already had it)
- Add flush-collected-styles helper that drains collected CSS rules
  into a <style data-sx-css> element in <head>
- Call flush after island hydration in post-swap, boot-init, and
  run-post-render-hooks to catch reactive re-renders
- Unify on data-sx-css attribute (existing convention) in ~tw/flush
  and shell template, removing the ad-hoc data-cssx attribute

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-02 09:37:58 +00:00
683e334546 Fix keyboard shortcuts + trigger filter + sx-on event mapping
1. parse-trigger-spec: strip [condition] from event names, store as
   "filter" modifier
2. bind-event: native SX filter for key=='X' patterns (extracts key
   char and checks event.key + not-input guard)
3. bind-event from: modifier: resolve "body"/"document"/"window" to
   direct DOM references instead of dom-query
4. sx-platform-2.js: global keyboard dispatch — WASM host-callbacks
   on document/body don't fire, so keyboard triggers with from:body
   are handled from JS, calling execute-request via K.eval
5. bind-inline-handlers: map afterSwap/beforeRequest to sx: prefix,
   eval JS bodies via Function constructor

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 23:19:25 +00:00
235d73d837 Engine: trigger filter support, sx-on event mapping, JS inline handlers
1. parse-trigger-spec: strip [condition] from event names, store as
   "filter" modifier (e.g. keyup[key=='s'] → event="keyup", filter=...)
2. bind-event: evaluate filter conditions via JS Function constructor
   when filter modifier is present
3. bind-inline-handlers: map afterSwap/beforeRequest etc. to sx:*
   event names (matching what the engine dispatches)
4. bind-inline-handlers: detect JS syntax in body (contains ".") and
   eval via Function instead of SX parse — enables this.reset() etc.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 22:56:24 +00:00
13eb701518 Fix 3 handler examples: put-patch names, value-select keys, active-search primitive
1. Rename ex-pp-* handlers to ex-putpatch-* to match URL slugs
   (putpatch-edit-all, putpatch, putpatch-cancel)
2. Fix value-select-data: keyword keys (:Languages) → string keys
   ("Languages") so request-arg string lookup matches
3. Fix dom-value → element-value in orchestration.sx bind-event
   changed modifier (dom-value was never defined, element-value is)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 22:14:48 +00:00
f5f58ea47e Fix polling interval leak on SPA navigation
The poll trigger in bind-triggers called set-interval but discarded the
interval ID, so polls continued firing after the element was removed from
the DOM. Now the callback checks el.isConnected each tick and self-clears
when the element is gone (HTMX-style cleanup).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 16:44:57 +00:00
d1b49db057 Fix tag name case in default trigger detection, refactor engine tests
Tag names from dom-tag-name are lowercase (not uppercase) in the WASM
kernel — fix FORM/INPUT/SELECT/TEXTAREA comparisons in get-default-trigger.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 15:22:22 +00:00
46f77c3b1e Adapter fixes, orchestration updates, example content + SPA tests
From other session: adapter-html/sx/dom fixes, orchestration
improvements, examples-content refactoring, SPA navigation test
updates, WASM copies synced.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 13:35:49 +00:00
584445a843 SPA navigation, page component refactors, WASM rebuild
Refactor page components (docs, examples, specs, reference, layouts)
and adapters (adapter-sx, boot-helpers, orchestration) across sx/ and
web/ directories. Add Playwright SPA navigation tests. Rebuild WASM
kernel with updated bytecode. Add OCaml primitives for request handling.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-01 11:00:51 +00:00
b62dfb25e5 Highlight returns SX tree, rendered to HTML/DOM by pipeline
highlight.sx now returns a list of (span :class "..." "text") elements
instead of a string. The rendering pipeline handles the rest:
- Server render-to-html: produces <span class="...">text</span>
- Client render-to-dom: produces DOM span elements
- Aser: serializes spans as SX for client rendering

Key fixes:
- hl-span uses (make-keyword "class") not :class (keywords evaluate
  to strings in list context)
- render-sx-tokens returns flat list of spans (no wrapper)
- hl-escape is identity (no escaping needed for tree values)
- highlight.sx added to browser bundle + platform loader
- ~docs/code renders src directly as child of pre

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 23:12:36 +00:00
a7efcaf679 Fix hydration: effect was a no-op primitive, bytecode compiler emitted CALL_PRIM
Root cause: sx_primitives.ml registered "effect" as a native no-op (for SSR).
The bytecode compiler's (primitive? "effect") returned true, so it emitted
OP_CALL_PRIM instead of OP_GLOBAL_GET + OP_CALL. The VM's CALL_PRIM handler
found the native Nil-returning stub and never called the real effect function
from core-signals.sx.

Fix: Remove effect and register-in-scope from the primitives table. The server
overrides them via env_bind in sx_server.ml (after compilation), which doesn't
affect primitive? checks.

Also: VM CALL_PRIM now falls back to cek_call for non-NativeFn values (safety
net for any other functions that get misclassified).

15/15 source mode, 15/15 bytecode mode.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 16:56:31 +00:00
521782d579 Fix WASM reactive signals: unify context/scope, fix flush-subscribers
Three root causes for reactive attribute updates not propagating in WASM:

1. `context` CEK special form only searched kont provide frames, missing
   `scope-push!` entries in the native scope_stacks hashtable. Unified by
   adding scope_stacks fallback to step_sf_context.

2. `flush-subscribers` used bare `(sub)` call which failed to invoke
   complex closures in for-each HO callbacks. Changed to `(cek-call sub nil)`.

3. Test eagerly evaluated `(deref s)` before render-to-dom saw it.
   Fixed tests to use quoted expressions matching real browser boot.

WASM native: 10/10, WASM shell: 26/26.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 15:12:25 +00:00
e2b29fb9f3 Fix effect SSR: rebind after file load instead of guarding spec
Revert (when (client?) ...) guard in signals.sx — it broke JS tests
since client? is false in Node.js too.

Instead, rebind effect and register-in-scope as no-ops in sx_server.ml
AFTER all .sx files load. The SX definition from signals.sx is replaced
only in the OCaml SSR context. JS tests and WASM browser keep the real
effect implementation.

Remove redundant browser primitive stubs from sx_primitives.ml — only
resource SSR stub needed (effect override moved to server setup).

JS tests: 1582/1585 (3 VM closure interop remain)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 10:55:04 +00:00
128dbe1b25 Live demo islands with highlighted source: SSR-safe effect, native component-source
- signals.sx: guard effect body with (when (client?) ...) so effects
  are no-op during SSR — only 2 stubs needed (effect, register-in-scope)
- sx_primitives.ml: add resource SSR stub (returns signal {loading: true}),
  remove 27 unnecessary browser primitive stubs
- sx_server.ml: native component-source that looks up Component/Island
  from env and pretty-prints the definition (replaces broken Python helper)
- reactive-islands/index.sx: Examples section with all 15 live demos
  inline + highlighted source via component-source
- reactive-islands/demo.sx: replace 14 hardcoded highlight strings with
  (component-source "~name") calls for always-current source

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 10:45:22 +00:00
9cf67e7354 Fix morph-children: treat empty-string element IDs as nil
dom-id returns "" for elements without an id attribute, and "" is
truthy in SX. This caused morph-children to build spurious entries
in old-by-id keyed by "", then match unrelated children via the
empty key — advancing oi past id-keyed children like #main-content
and skipping them in cleanup.

Three changes in morph-children (engine.sx):
- old-by-id reduce: normalize empty dom-id to nil so id-less
  elements are excluded from the lookup dict
- match-id binding: normalize empty dom-id to nil so new children
  without ids don't spuriously match old children
- Case 2 skip condition: use (not (empty? ...)) instead of bare
  (dom-id old-child) to avoid treating "" as a real id

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 09:29:39 +00:00
f828fb023b Fix 73 JS test failures: match transpiler, sxEq, deref frame, signals, stepper lib
Evaluator fixes (from broken match refactor in 8bba02f):
- Deref frame: use CEK state `value`, not `(get frame "value")`
- Deref frame: restore `(context "sx-reactive" nil)` (was undefined `get-tracking-context`)
- Scope-acc frame: restore missing `(get frame "value")` arg to make-scope-acc-frame
- Add missing `thread-insert-arg` helper for thread-first non-HO branch

Transpiler (hosts/javascript/transpiler.sx):
- Add `match` special form handler (IIFE with chained if/return, `_` wildcard)
- Replace `=`/`!=` infix `==` with `sxEq()` function call for proper symbol equality

JS platform (hosts/javascript/platform.py):
- Add `sxEq` for structural symbol/keyword comparison
- Add `componentFile`, `sort`, `defStore`/`useStore`/`clearStores` primitives
- Add `length`/`map`/`for-each`/`reduce` as VM-compatible HOF primitives
- Fix `SYM` → `makeSymbol` references

New files:
- sx/sx/stepper-lib.sx: extracted split-tag, build-code-tokens, steps-to-preview

JS tests: 0 → 1582/1585 passing (3 remaining are VM closure interop)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-31 08:33:27 +00:00
9ce8659f74 Fix signal-add-sub! losing subscribers after remove, fix build pipeline
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>
2026-03-31 07:36:36 +00:00
5abc947ac7 Fix morph-children: empty-id keying, consumed-set cleanup, island attr sync
Three bugs in the DOM morph algorithm (web/engine.sx):

1. Empty-id keying: dom-id returns "" (not nil) for elements without an
   id attribute, and "" is truthy in SX. Every id-less element was stored
   under key "" in old-by-id, causing all new children to match the same
   old element via the keyed branch — collapsing all children into one.
   Fix: guard with (and id (not (empty? id))) in map building and matching.

2. Cleanup bug: the oi-cursor cleanup (range oi len) removed keyed elements
   that were matched and moved from positions >= oi, and failed to remove
   unmatched elements at positions < oi. Fix: track consumed indices in a
   dict and remove all unconsumed elements regardless of position.

3. Island attr sync: morph-node delegated to morph-island-children without
   first syncing the island element's own attributes (e.g. data-sx-state).
   Fix: call sync-attrs before morph-island-children.

Also: pass explicit `true` to all dom-clone calls (deep clone parameter).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 23:58:23 +00:00
d81a518732 Fix JIT compiler, CSSX browser support, double-fetch, SPA layout
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>
2026-03-30 20:48:43 +00:00
80931e4972 Fix JIT closure isolation, SX wire format, server diagnostics
Root cause: _env_bind_hook mirrored ALL env_bind calls (including
lambda parameter bindings) to the shared VM globals table. Factory
functions like make-page-fn that return closures capturing different
values for the same param names (default-name, prefix, suffix) would
have the last call's values overwrite all previous closures' captured
state in globals. OP_GLOBAL_GET reads globals first, so all closures
returned the last factory call's values.

Fix: only sync root-env bindings (parent=None) to VM globals. Lambda
parameter bindings stay in their local env, found via vm_closure_env
fallback in OP_GLOBAL_GET.

Also in this commit:
- OP_CLOSURE propagates parent vm_closure_env to child closures
- Remove JIT globals injection (closure vars found via env chain)
- sx_server.ml: SX-Request header → returns text/sx (aser only)
- sx_server.ml: diagnostic endpoint GET /sx/_debug/{env,eval,route}
- sx_server.ml: page helper stubs for deep page rendering
- sx_server.ml: skip client-libs/ dir (browser-only definitions)
- adapter-html.sx: unknown components → HTML comment (not error)
- sx-platform.js: .sxbc fallback loader for bytecode modules
- Delete sx_http.ml (standalone HTTP server, unused)
- Delete stale .sxbc.json files (arity=0 bug, replaced by .sxbc)
- 7 new closure isolation tests in test-closure-isolation.sx
- mcp_tree.ml: emit arity + upvalue-count in .sxbc.json output

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 17:28:47 +00:00
408eca1cb0 Set arity in native compiler and bytecode modules
Sx_compiler.compile/compile_module now emit arity (local slot count) in
the bytecode dict. MCP sx_build_bytecode serializes arity into .sxbc.json.
sx-platform.js passes arity through to K.loadModule(). Without this, the
VM allocated only 16 local slots per module frame.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 14:31:55 +00:00
b274e428eb WASM kernel fixes: parse, env sync, iterative CEK, click delegation
Browser kernel:
- Add `parse` native fn (matches server: unwrap single, list for multiple)
- Restore env==global_env guard on _env_bind_hook (let bindings must not
  leak to _vm_globals — caused JIT CSSX "Not callable: nil" errors)
- Add _env_bind_hook call in env_set_id so set! mutations sync to VM globals
- Fire _vm_global_set_hook from OP_DEFINE so VM defines sync back to CEK env

CEK evaluator:
- Replace recursive cek_run with iterative while loop using sx_truthy
  (previous attempt used strict Bool true matching, broke in wasm_of_ocaml)
- Remove dead cek_run_iterative function

Web modules:
- Remove find-matching-route and parse-route-pattern stubs from
  boot-helpers.sx that shadowed real implementations from router.sx
- Sync boot-helpers.sx to dist/static dirs for bytecode compilation

Platform (sx-platform.js):
- Set data-sx-ready attribute after boot completes (was only in boot-init
  which sx-platform.js doesn't call — it steps through boot manually)
- Add document-level click delegation for a[sx-get] links as workaround
  for bytecoded bind-event not attaching per-element listeners (VM closure
  issue under investigation — bind-event runs but dom-add-listener calls
  don't result in addEventListener)

Tests:
- New test_kernel.js: 24 tests covering env sync, parse, route matching,
  host FFI/preventDefault, deep recursion
- New navigation test: "sx-get link fetches SX not HTML and preserves layout"
  (currently catches layout breakage after SPA swap — known issue)

Known remaining issues:
- JIT CSSX failures: closure-captured variables resolve to nil in VM bytecode
- SPA content swap via execute-request breaks page layout
- Bytecoded bind-event doesn't attach per-element addEventListener (root
  cause unknown — when listen-target guard appears to block despite element
  being valid)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 13:33:13 +00:00
e14947cedc Add sx:ready hydration signal, eliminate test sleeps
boot-init now sets data-sx-ready on <html> and dispatches an sx:ready
CustomEvent after all islands are hydrated. Playwright tests use this
instead of networkidle + hard-coded sleeps (50+ seconds eliminated).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 12:47:52 +00:00
951b3a6586 Native bytecode compilation in MCP: 108s → 1.9s (57x faster)
Replace Node.js compile-modules.js with direct Sx_compiler.compile_module
calls in mcp_tree.ml. No subprocess, no JIT warm-up, no Node.js.
23 files compile in 1.9 seconds.

Also includes rebuilt WASM kernel (iterative cek_run) and all 23
bytecode modules recompiled with native compiler.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 10:45:38 +00:00
1985c648eb Native bytecode compiler: 8x faster, compile-blob command
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>
2026-03-30 09:49:28 +00:00
20b3dfb8a0 Fix island state loss on SX navigation + cache busting
Island markers rendered during SX navigation responses had no
data-sx-state attribute, so hydration found empty kwargs and path
was nil in the copyright display. Now adapter-dom.sx serializes
keyword args into data-sx-state on island markers, matching what
adapter-html.sx does for SSR.

Also fix post-swap to use parent element for outerHTML swaps in
SX responses (was using detached old target). Add SX source file
hashes to wasm_hash for proper browser cache busting — changing
any .sx file now busts the cache. Remove stale .sxbc bytecode
cache files.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 17:36:27 +00:00
90918fb2b1 VM global_env sync + isomorphic nav store primitives
Reverse hook syncs VM GLOBAL_SET mutations back to global_env so CEK reads
see JIT-written values. Isomorphic nav: store primitives, event-bridge,
client? predicate. Browser JS and bytecode rebuilt.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-28 15:20:12 +00:00
e0070041d6 Add .sxbc s-expression bytecode format
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>
2026-03-27 14:16:22 +00:00