Updates the pre-bundled HS tokenizer/parser/compiler/runtime/integration
sx + sxbc pairs plus module-manifest.json in shared/static/wasm/sx/,
matching the current HS source after recent patches (call command,
event destructuring, halt/append, break/continue, CSS block syntax, etc.).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
guard and cek-try both create CEK frames that don't survive async
perform/resume. Instead, run-action returns nil on success and an
error string on failure. The for-each loop checks the return value
and sets fail-msg. No exceptions cross async boundaries.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
When an error occurs during resumed VM execution (after perform/hs-wait),
resume_vm now checks the VM's handler_stack. If a handler exists (from a
compiled guard form's OP_PUSH_HANDLER), it unwinds frames and jumps to
the catch block — exactly like OP_RAISE. This enables try/catch across
async perform/resume boundaries.
The guard form compiles to OP_PUSH_HANDLER which lives on the vm struct
and survives across setTimeout-based async resume. Previously, errors
during resume escaped to the JS console as unhandled exceptions.
Also restored guard in the test runner (was cek-try which doesn't survive
async) and restored error-throwing assertions in run-action.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Shows pending_cek, reuse_stack count, and frames count in the error.
Also transfers reuse_stack from _active_vm at VmSuspended catch sites.
Finding: the Not callable: nil happens during cek_resume (pending_cek=false,
kont=12 frames). The CEK continuation tries to call a letrec function that
is nil because letrec bindings are in VM local SLOTS, not in the CEK env.
The VM→CEK boundary crossing during suspension loses the local slot values.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Root cause: sx_browser.ml registered all HTML tags (a, b, i, p, s, u, g, etc.)
as custom special forms. The evaluator's step_eval_list checked custom special
forms BEFORE checking local env bindings. So (let ((a (fn () 42))) (a))
matched the HTML tag <a> instead of calling the local function a.
Fix: skip custom special forms AND render-check when the symbol is bound in
the local env. Added (not (env-has? env name)) guard to both checks in
step-eval-list (spec/evaluator.sx and transpiled sx_ref.ml).
This was the root cause of "[sx] resume: Not callable: nil" — after hs-wait
resumed, calling letrec-bound functions like wait-boot (which is not an HTML
tag) worked, but any function whose name collided with an HTML tag failed.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Parse `is X ignoring case` → (eq-ignore-case left right)
- Parse `is not X ignoring case` → (not (eq-ignore-case left right))
- Compiler: eq-ignore-case → hs-eq-ignore-case
- Runtime: hs-eq-ignore-case using downcase/str
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Don't insert 'then' inside for-in loop bodies or after 'repeat N times'
(fixes repeat from 1/30 → 5/30)
- Allow HS sources ending with " when they don't contain embedded HTML
(fixes set from 6/25 → 10/25, enables 18 previously-skipped tests)
- Fix assert= argument order: (actual expected), not (expected actual)
(error messages now correctly report Expected/Got)
395 → 402/831 (+7)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Added sublist helper (portable list extraction, avoids 3-arg slice
which fails in browser WASM kernel)
- Replaced reduce + 0 lwid with manual sum loop (reduce has browser
compat issues with dict-set! error in call stack)
- Imperative DOM update via effect for clean paragraph re-rendering
on signal changes (clear container, create new spans)
- String slice in hyphenate-word kept (works on strings)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Root cause: sx_insert_near placed break-lines-greedy, pretext-position-line,
pretext-layout-lines OUTSIDE the define-library begin block. The bytecode
compiler only compiles forms inside begin as STORE_GLOBAL — forms outside
are invisible to the browser VM.
Fix: moved all function definitions inside (begin ...) of (define-library).
Bytecode now includes all 17 functions (11K compiled, was 9K).
Browser load-sxbc: simplified VmSuspended handling — just catch and
continue, since STORE_GLOBAL ops already ran before the import OP_PERFORM.
sync_vm_to_env copies them to global_env.
Island now calls break-lines and pretext-layout-lines from bytecode-compiled
library — runs on VM, not CEK interpreter.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- text-layout.sx added to WASM bytecode pipeline (9K compiled)
- Fix multi-list map calls (map-indexed + nth instead of map fn list1 list2)
- pretext-layout-lines and pretext-position-line moved to library exports
- Browser load-sxbc: handle VmSuspended for import, copy library exports
to global_env after module load (define-library export fix)
- compile-modules.js: text-layout in SOURCE_MAP, FILES, and entry deps
- Island uses library functions (break-lines, pretext-layout-lines)
instead of inlining — runs on bytecode VM when exports resolve
Known issue: define-library exports don't propagate to browser global env
yet. The load-sxbc import suspension handler resumes correctly but
bind_import_set doesn't fire. Needs deeper investigation into how the
WASM kernel's define-library registers exports vs how other libraries
(adapter-html, tw) make their exports available.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Parser/compiler/runtime for focus command. Tokenizer: focus, blur,
precedes, follows, ignoring, case keywords. Test spec: per-test
failure output for diagnosis.
374/831 (45%)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Streaming chunked transfer with shell-first suspense and resolve scripts.
Hyperscript parser/compiler/runtime expanded for conformance. WASM static
assets added to OCaml host. Playwright streaming and page-level test suites.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
compile-let now handles dict destructuring patterns:
(let {:key1 var1 :key2 var2} source body). This unblocked core-signals.sx
(deref uses dict destructuring) which was the sole bytecode skip.
Rewrote stripLibraryWrapper from line-based to paren-aware extraction.
The old regex missed (define-library on its own line (no trailing space),
silently passing the full wrapper to the compiler.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Reset to last known-good state (908f4f80) where links, stepper, and
islands all work, then recovered all hyperscript implementation,
conformance tests, behavioral tests, Playwright specs, site sandbox,
IO-aware server loading, and upstream test suite from f271c88a.
Excludes runtime changes (VM resolve hook, VmSuspended browser handler,
sx_ref.ml guard recovery) that need careful re-integration.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
All .sxbc recompiled with fixed sx_vm.ml. 32/32 WASM tests, 4/4
bytecode regression tests. hs-repeat-times correctly does 6 io-sleep
suspensions in bytecode mode.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
