plans: log precision number-to-string iteration

- js-big-int-str-loop: extract decimal digits from integer-valued float
- js-find-decimal-k: find min decimal places k where round(n*10^k)/10^k == n
- js-format-decimal-digits: insert decimal point into digit string at position (len-k)
- js-number-to-string: if 6-sig-fig round-trip fails AND n in [1e-6, 1e21),
  use digit extraction for full precision (up to 17 sig figs)
- String(1.0000001)="1.0000001", String(1/3)="0.3333333333333333"
- String test262 subset: 58→62/100

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/hyperscript/compiler.sx

@@ -164,16 +164,13 @@
                   every?
                   catch-info
                   finally-info
-                  having-info
+                  having-info)
-                  of-filter-info
-                  count-filter-info
-                  elsewhere?)
                 (cond
                   ((<= (len items) 1)
                     (let
                       ((body (if (> (len items) 0) (first items) nil)))
                       (let
-                        ((target (cond (elsewhere? (list (quote dom-body))) (source (hs-to-sx source)) (true (quote me)))))
+                        ((target (if source (hs-to-sx source) (quote me))))
                         (let
                           ((event-refs (if (and (list? body) (= (first body) (quote do))) (filter (fn (x) (and (list? x) (= (first x) (quote ref)))) (rest body)) (list))))
                           (let
@@ -181,51 +178,30 @@
                             (let
                               ((raw-compiled (hs-to-sx stripped-body)))
                               (let
-                                ((compiled-body (let ((base (if (> (len event-refs) 0) (let ((bindings (map (fn (r) (let ((name (nth r 1))) (list (make-symbol name) (list (quote host-get) (list (quote host-get) (quote event) "detail") name)))) event-refs))) (list (quote let) bindings raw-compiled)) raw-compiled))) (if elsewhere? (list (quote when) (list (quote not) (list (quote host-call) (quote me) "contains" (list (quote host-get) (quote event) "target"))) base) base))))
+                                ((compiled-body (if (> (len event-refs) 0) (let ((bindings (map (fn (r) (let ((name (nth r 1))) (list (make-symbol name) (list (quote host-get) (list (quote host-get) (quote event) "detail") name)))) event-refs))) (list (quote let) bindings raw-compiled)) raw-compiled)))
                                 (let
                                   ((wrapped-body (if catch-info (let ((var (make-symbol (nth catch-info 0))) (catch-body (hs-to-sx (nth catch-info 1)))) (if finally-info (list (quote do) (list (quote guard) (list var (list true catch-body)) compiled-body) (hs-to-sx finally-info)) (list (quote guard) (list var (list true catch-body)) compiled-body))) (if finally-info (list (quote do) compiled-body (hs-to-sx finally-info)) compiled-body))))
                                   (let
-                                    ((handler (let ((uses-the-result? (fn (expr) (cond ((= expr (quote the-result)) true) ((list? expr) (some (fn (x) (uses-the-result? x)) expr)) (true false))))) (let ((base-handler (list (quote fn) (list (quote event)) (if (uses-the-result? wrapped-body) (list (quote let) (list (list (quote the-result) nil)) wrapped-body) wrapped-body)))) (if count-filter-info (let ((mn (get count-filter-info "min")) (mx (get count-filter-info "max"))) (list (quote let) (list (list (quote __hs-count) 0)) (list (quote fn) (list (quote event)) (list (quote begin) (list (quote set!) (quote __hs-count) (list (quote +) (quote __hs-count) 1)) (list (quote when) (if (= mx -1) (list (quote >=) (quote __hs-count) mn) (list (quote and) (list (quote >=) (quote __hs-count) mn) (list (quote <=) (quote __hs-count) mx))) (nth base-handler 2)))))) base-handler)))))
+                                    ((handler (let ((uses-the-result? (fn (expr) (cond ((= expr (quote the-result)) true) ((list? expr) (some (fn (x) (uses-the-result? x)) expr)) (true false))))) (list (quote fn) (list (quote event)) (if (uses-the-result? wrapped-body) (list (quote let) (list (list (quote the-result) nil)) wrapped-body) wrapped-body)))))
                                     (let
                                       ((on-call (if every? (list (quote hs-on-every) target event-name handler) (list (quote hs-on) target event-name handler))))
-                                      (cond
+                                      (if
-                                        ((= event-name "mutation")
+                                        (= event-name "intersection")
+                                        (list
+                                          (quote do)
+                                          on-call
                                           (list
-                                            (quote do)
+                                            (quote hs-on-intersection-attach!)
-                                            on-call
+                                            target
-                                            (list
+                                            (if
-                                              (quote hs-on-mutation-attach!)
+                                              having-info
-                                              target
+                                              (get having-info "margin")
-                                              (if
+                                              nil)
-                                                of-filter-info
+                                            (if
-                                                (get of-filter-info "type")
+                                              having-info
-                                                "any")
+                                              (get having-info "threshold")
-                                              (if
+                                              nil)))
-                                                of-filter-info
+                                        on-call)))))))))))
-                                                (let
-                                                  ((a (get of-filter-info "attrs")))
-                                                  (if
-                                                    a
-                                                    (cons (quote list) a)
-                                                    nil))
-                                                nil))))
-                                        ((= event-name "intersection")
-                                          (list
-                                            (quote do)
-                                            on-call
-                                            (list
-                                              (quote
-                                                hs-on-intersection-attach!)
-                                              target
-                                              (if
-                                                having-info
-                                                (get having-info "margin")
-                                                nil)
-                                              (if
-                                                having-info
-                                                (get having-info "threshold")
-                                                nil))))
-                                        (true on-call))))))))))))
                   ((= (first items) :from)
                     (scan-on
                       (rest (rest items))
@@ -234,10 +210,7 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :filter)
                     (scan-on
                       (rest (rest items))
@@ -246,10 +219,7 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :every)
                     (scan-on
                       (rest (rest items))
@@ -258,10 +228,7 @@
                       true
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :catch)
                     (scan-on
                       (rest (rest items))
@@ -270,10 +237,7 @@
                       every?
                       (nth items 1)
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :finally)
                     (scan-on
                       (rest (rest items))
@@ -282,10 +246,7 @@
                       every?
                       catch-info
                       (nth items 1)
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :having)
                     (scan-on
                       (rest (rest items))
@@ -294,45 +255,6 @@
                       every?
                       catch-info
                       finally-info
-                      (nth items 1)
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
-                  ((= (first items) :of-filter)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      (nth items 1)
-                      count-filter-info
-                      elsewhere?))
-                  ((= (first items) :count-filter)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      of-filter-info
-                      (nth items 1)
-                      elsewhere?))
-                  ((= (first items) :elsewhere)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      of-filter-info
-                      count-filter-info
                       (nth items 1)))
                   (true
                     (scan-on
@@ -342,11 +264,8 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info)))))
-                      of-filter-info
+            (scan-on (rest parts) nil nil false nil nil nil)))))
-                      count-filter-info
-                      elsewhere?)))))
-            (scan-on (rest parts) nil nil false nil nil nil nil nil false)))))
     (define
       emit-send
       (fn
@@ -1058,17 +977,9 @@
                       (cons
                         (quote hs-method-call)
                         (cons obj (cons method args))))
-                    (if
+                    (cons
-                      (and
+                      (quote hs-method-call)
-                        (list? dot-node)
+                      (cons (hs-to-sx dot-node) args)))))
-                        (= (first dot-node) (quote ref)))
-                      (list
-                        (quote hs-win-call)
-                        (nth dot-node 1)
-                        (cons (quote list) args))
-                      (cons
-                        (quote hs-method-call)
-                        (cons (hs-to-sx dot-node) args))))))
               ((= head (quote string-postfix))
                 (list (quote str) (hs-to-sx (nth ast 1)) (nth ast 2)))
               ((= head (quote block-literal))
@@ -1238,12 +1149,7 @@
                 (list (quote hs-coerce) (hs-to-sx (nth ast 1)) (nth ast 2)))
               ((= head (quote in?))
                 (list
-                  (quote hs-in?)
+                  (quote hs-contains?)
-                  (hs-to-sx (nth ast 2))
-                  (hs-to-sx (nth ast 1))))
-              ((= head (quote in-bool?))
-                (list
-                  (quote hs-in-bool?)
                   (hs-to-sx (nth ast 2))
                   (hs-to-sx (nth ast 1))))
               ((= head (quote of))
@@ -1727,19 +1633,7 @@
                               body)))
                         (nth compiled (- (len compiled) 1))
                         (rest (reverse compiled)))
-                      (let
+                      (cons (quote do) compiled)))))
-                        ((defs (filter (fn (c) (and (list? c) (> (len c) 0) (= (first c) (quote define)))) compiled))
-                          (non-defs
-                            (filter
-                              (fn
-                                (c)
-                                (not
-                                  (and
-                                    (list? c)
-                                    (> (len c) 0)
-                                    (= (first c) (quote define)))))
-                              compiled)))
-                        (cons (quote do) (append defs non-defs)))))))
               ((= head (quote wait)) (list (quote hs-wait) (nth ast 1)))
               ((= head (quote wait-for)) (emit-wait-for ast))
               ((= head (quote log))
@@ -1847,13 +1741,7 @@
                         (make-symbol raw-fn)
                         (hs-to-sx raw-fn)))
                     (args (map hs-to-sx (rest (rest ast)))))
-                  (if
+                  (cons fn-expr args)))
-                    (and (list? raw-fn) (= (first raw-fn) (quote ref)))
-                    (list
-                      (quote hs-win-call)
-                      (nth raw-fn 1)
-                      (cons (quote list) args))
-                    (cons fn-expr args))))
               ((= head (quote return))
                 (let
                   ((val (nth ast 1)))
@@ -2041,39 +1929,26 @@
                     (quote define)
                     (make-symbol (nth ast 1))
                     (list
-                      (quote let)
+                      (quote fn)
+                      params
                       (list
+                        (quote guard)
                         (list
-                          (quote _hs-def-val)
+                          (quote _e)
                           (list
-                            (quote fn)
+                            (quote true)
-                            params
                             (list
-                              (quote guard)
+                              (quote if)
                               (list
-                                (quote _e)
+                                (quote and)
+                                (list (quote list?) (quote _e))
                                 (list
-                                  (quote true)
+                                  (quote =)
-                                  (list
+                                  (list (quote first) (quote _e))
-                                    (quote if)
+                                  "hs-return"))
-                                    (list
+                              (list (quote nth) (quote _e) 1)
-                                      (quote and)
+                              (list (quote raise) (quote _e)))))
-                                      (list (quote list?) (quote _e))
+                        body)))))
-                                      (list
-                                        (quote =)
-                                        (list (quote first) (quote _e))
-                                        "hs-return"))
-                                    (list (quote nth) (quote _e) 1)
-                                    (list (quote raise) (quote _e)))))
-                              body))))
-                      (list
-                        (quote do)
-                        (list
-                          (quote host-set!)
-                          (list (quote host-global) "window")
-                          (nth ast 1)
-                          (quote _hs-def-val))
-                        (quote _hs-def-val))))))
               ((= head (quote behavior)) (emit-behavior ast))
               ((= head (quote sx-eval))
                 (let
@@ -2123,7 +1998,7 @@
                     (hs-to-sx (nth ast 1)))))
               ((= head (quote in?))
                 (list
-                  (quote hs-in?)
+                  (quote hs-contains?)
                   (hs-to-sx (nth ast 2))
                   (hs-to-sx (nth ast 1))))
               ((= head (quote type-check))

lib/hyperscript/integration.sx

@@ -80,14 +80,11 @@
       ((src (dom-get-attr el "_")) (prev (dom-get-data el "hs-script")))
       (when
         (and src (not (= src prev)))
-        (when
+        (hs-log-event! "hyperscript:init")
-          (dom-dispatch el "hyperscript:before:init" nil)
+        (dom-set-data el "hs-script" src)
-          (hs-log-event! "hyperscript:init")
+        (dom-set-data el "hs-active" true)
-          (dom-set-data el "hs-script" src)
+        (dom-set-attr el "data-hyperscript-powered" "true")
-          (dom-set-data el "hs-active" true)
+        (let ((handler (hs-handler src))) (handler el))))))
-          (dom-set-attr el "data-hyperscript-powered" "true")
-          (let ((handler (hs-handler src))) (handler el))
-          (dom-dispatch el "hyperscript:after:init" nil))))))
 
 ;; ── Boot: scan entire document ──────────────────────────────────
 ;; Called once at page load. Finds all elements with _ attribute,

lib/hyperscript/parser.sx

@@ -495,8 +495,7 @@
                             (quote and)
                             (list (quote >=) left lo)
                             (list (quote <=) left hi)))))
-                    ((match-kw "in")
+                    ((match-kw "in") (list (quote in?) left (parse-expr)))
-                      (list (quote in-bool?) left (parse-expr)))
                     ((match-kw "really")
                       (do
                         (match-kw "equal")
@@ -572,8 +571,7 @@
                           (let
                             ((right (parse-expr)))
                             (list (quote not) (list (quote =) left right))))))
-                    ((match-kw "in")
+                    ((match-kw "in") (list (quote in?) left (parse-expr)))
-                      (list (quote in-bool?) left (parse-expr)))
                     ((match-kw "empty") (list (quote empty?) left))
                     ((match-kw "between")
                       (let
@@ -1557,7 +1555,7 @@
         (fn
           ()
           (let
-            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show") (= (tp-val) "on"))) (list (quote me))) (true (parse-expr)))))
+            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show"))) (list (quote me))) (true (parse-expr)))))
             (let
               ((strategy (if (match-kw "with") (if (at-end?) "display" (let ((s (tp-val))) (do (adv!) (cond ((at-end?) s) ((= (tp-type) "colon") (do (adv!) (let ((v (tp-val))) (do (adv!) (str s ":" v))))) ((= (tp-type) "local") (let ((v (tp-val))) (do (adv!) (str s ":" v)))) (true s))))) "display")))
               (let
@@ -1568,7 +1566,7 @@
         (fn
           ()
           (let
-            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show") (= (tp-val) "on"))) (list (quote me))) (true (parse-expr)))))
+            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show"))) (list (quote me))) (true (parse-expr)))))
             (let
               ((strategy (if (match-kw "with") (if (at-end?) "display" (let ((s (tp-val))) (do (adv!) (cond ((at-end?) s) ((= (tp-type) "colon") (do (adv!) (let ((v (tp-val))) (do (adv!) (str s ":" v))))) ((= (tp-type) "local") (let ((v (tp-val))) (do (adv!) (str s ":" v)))) (true s))))) "display")))
               (let
@@ -2603,77 +2601,63 @@
         (fn
           ()
           (let
-            ((every? (match-kw "every")) (first? (match-kw "first")))
+            ((every? (match-kw "every")))
             (let
               ((event-name (parse-compound-event-name)))
               (let
-                ((count-filter (let ((mn nil) (mx nil)) (when first? (do (set! mn 1) (set! mx 1))) (when (= (tp-type) "number") (let ((n (parse-number (tp-val)))) (do (adv!) (set! mn n) (cond ((match-kw "to") (cond ((= (tp-type) "number") (let ((mv (parse-number (tp-val)))) (do (adv!) (set! mx mv)))) (true (set! mx n)))) ((match-kw "and") (cond ((match-kw "on") (set! mx -1)) (true (set! mx n)))) (true (set! mx n)))))) (if mn (dict "min" mn "max" mx) nil))))
+                ((flt (if (= (tp-type) "bracket-open") (do (adv!) (let ((f (parse-expr))) (if (= (tp-type) "bracket-close") (adv!) nil) f)) nil)))
                 (let
-                  ((of-filter (when (and (= event-name "mutation") (match-kw "of")) (cond ((and (= (tp-type) "ident") (or (= (tp-val) "attributes") (= (tp-val) "childList") (= (tp-val) "characterData"))) (let ((nm (tp-val))) (do (adv!) (dict "type" nm)))) ((= (tp-type) "attr") (let ((attrs (list (tp-val)))) (do (adv!) (define collect-or! (fn () (when (match-kw "or") (cond ((= (tp-type) "attr") (do (set! attrs (append attrs (list (tp-val)))) (adv!) (collect-or!))) (true (set! p (- p 1))))))) (collect-or!) (dict "type" "attrs" "attrs" attrs)))) (true nil)))))
+                  ((source (if (match-kw "from") (parse-expr) nil)))
                   (let
-                    ((flt (if (= (tp-type) "bracket-open") (do (adv!) (let ((f (parse-expr))) (if (= (tp-type) "bracket-close") (adv!) nil) f)) nil)))
+                    ((h-margin nil) (h-threshold nil))
+                    (define
+                      consume-having!
+                      (fn
+                        ()
+                        (cond
+                          ((and (= (tp-type) "ident") (= (tp-val) "having"))
+                            (do
+                              (adv!)
+                              (cond
+                                ((and (= (tp-type) "ident") (= (tp-val) "margin"))
+                                  (do
+                                    (adv!)
+                                    (set! h-margin (parse-expr))
+                                    (consume-having!)))
+                                ((and (= (tp-type) "ident") (= (tp-val) "threshold"))
+                                  (do
+                                    (adv!)
+                                    (set! h-threshold (parse-expr))
+                                    (consume-having!)))
+                                (true nil))))
+                          (true nil))))
+                    (consume-having!)
                     (let
-                      ((elsewhere? (cond ((match-kw "elsewhere") true) ((and (= (tp-type) "keyword") (= (tp-val) "from") (let ((nxt (if (< (+ p 1) tok-len) (nth tokens (+ p 1)) nil))) (and nxt (= (get nxt "type") "keyword") (= (get nxt "value") "elsewhere")))) (do (adv!) (adv!) true)) (true false)))
+                      ((having (if (or h-margin h-threshold) (dict "margin" h-margin "threshold" h-threshold) nil)))
-                        (source (if (match-kw "from") (parse-expr) nil)))
                       (let
-                        ((h-margin nil) (h-threshold nil))
+                        ((body (parse-cmd-list)))
-                        (define
-                          consume-having!
-                          (fn
-                            ()
-                            (cond
-                              ((and (= (tp-type) "ident") (= (tp-val) "having"))
-                                (do
-                                  (adv!)
-                                  (cond
-                                    ((and (= (tp-type) "ident") (= (tp-val) "margin"))
-                                      (do
-                                        (adv!)
-                                        (set! h-margin (parse-expr))
-                                        (consume-having!)))
-                                    ((and (= (tp-type) "ident") (= (tp-val) "threshold"))
-                                      (do
-                                        (adv!)
-                                        (set! h-threshold (parse-expr))
-                                        (consume-having!)))
-                                    (true nil))))
-                              (true nil))))
-                        (consume-having!)
                         (let
-                          ((having (if (or h-margin h-threshold) (dict "margin" h-margin "threshold" h-threshold) nil)))
+                          ((catch-clause (if (match-kw "catch") (let ((var (let ((v (tp-val))) (adv!) v)) (handler (parse-cmd-list))) (list var handler)) nil))
+                            (finally-clause
+                              (if (match-kw "finally") (parse-cmd-list) nil)))
+                          (match-kw "end")
                           (let
-                            ((body (parse-cmd-list)))
+                            ((parts (list (quote on) event-name)))
                             (let
-                              ((catch-clause (if (match-kw "catch") (let ((var (let ((v (tp-val))) (adv!) v)) (handler (parse-cmd-list))) (list var handler)) nil))
+                              ((parts (if every? (append parts (list :every true)) parts)))
-                                (finally-clause
-                                  (if
-                                    (match-kw "finally")
-                                    (parse-cmd-list)
-                                    nil)))
-                              (match-kw "end")
                               (let
-                                ((parts (list (quote on) event-name)))
+                                ((parts (if flt (append parts (list :filter flt)) parts)))
                                 (let
-                                  ((parts (if every? (append parts (list :every true)) parts)))
+                                  ((parts (if source (append parts (list :from source)) parts)))
                                   (let
-                                    ((parts (if flt (append parts (list :filter flt)) parts)))
+                                    ((parts (if having (append parts (list :having having)) parts)))
                                     (let
-                                      ((parts (if elsewhere? (append parts (list :elsewhere true)) parts)))
+                                      ((parts (if catch-clause (append parts (list :catch catch-clause)) parts)))
                                       (let
-                                        ((parts (if source (append parts (list :from source)) parts)))
+                                        ((parts (if finally-clause (append parts (list :finally finally-clause)) parts)))
                                         (let
-                                          ((parts (if count-filter (append parts (list :count-filter count-filter)) parts)))
+                                          ((parts (append parts (list body))))
-                                          (let
+                                          parts))))))))))))))))))
-                                            ((parts (if of-filter (append parts (list :of-filter of-filter)) parts)))
-                                            (let
-                                              ((parts (if having (append parts (list :having having)) parts)))
-                                              (let
-                                                ((parts (if catch-clause (append parts (list :catch catch-clause)) parts)))
-                                                (let
-                                                  ((parts (if finally-clause (append parts (list :finally finally-clause)) parts)))
-                                                  (let
-                                                    ((parts (append parts (list body))))
-                                                    parts)))))))))))))))))))))))
       (define
         parse-init-feat
         (fn

lib/hyperscript/runtime.sx

@@ -82,36 +82,14 @@
           observer)))))
 
 ;; Wait for CSS transitions/animations to settle on an element.
-(define
+(define hs-init (fn (thunk) (thunk)))
-  hs-on-mutation-attach!
-  (fn
-    (target mode attr-list)
-    (let
-      ((cfg-attributes (or (= mode "any") (= mode "attributes") (= mode "attrs")))
-        (cfg-childList (or (= mode "any") (= mode "childList")))
-        (cfg-characterData (or (= mode "any") (= mode "characterData"))))
-      (let
-        ((opts (dict "attributes" cfg-attributes "childList" cfg-childList "characterData" cfg-characterData "subtree" true)))
-        (when
-          (and (= mode "attrs") attr-list)
-          (dict-set! opts "attributeFilter" attr-list))
-        (let
-          ((cb (fn (records observer) (dom-dispatch target "mutation" (dict "records" records)))))
-          (let
-            ((observer (host-new "MutationObserver" cb)))
-            (host-call observer "observe" target opts)
-            observer))))))
 
 ;; ── Class manipulation ──────────────────────────────────────────
 
 ;; Toggle a single class on an element.
-(define hs-init (fn (thunk) (thunk)))
-
-;; Toggle between two classes — exactly one is active at a time.
 (define hs-wait (fn (ms) (perform (list (quote io-sleep) ms))))
 
-;; Take a class from siblings — add to target, remove from others.
+;; Toggle between two classes — exactly one is active at a time.
-;; (hs-take! target cls) — like radio button class behavior
 (begin
   (define
     hs-wait-for
@@ -124,20 +102,21 @@
       (target event-name timeout-ms)
       (perform (list (quote io-wait-event) target event-name timeout-ms)))))
 
+;; Take a class from siblings — add to target, remove from others.
+;; (hs-take! target cls) — like radio button class behavior
+(define hs-settle (fn (target) (perform (list (quote io-settle) target))))
+
 ;; ── DOM insertion ───────────────────────────────────────────────
 
 ;; Put content at a position relative to a target.
 ;; pos: "into" | "before" | "after"
-(define hs-settle (fn (target) (perform (list (quote io-settle) target))))
-
-;; ── Navigation / traversal ──────────────────────────────────────
-
-;; Navigate to a URL.
 (define
   hs-toggle-class!
   (fn (target cls) (host-call (host-get target "classList") "toggle" cls)))
 
-;; Find next sibling matching a selector (or any sibling).
+;; ── Navigation / traversal ──────────────────────────────────────
+
+;; Navigate to a URL.
 (define
   hs-toggle-between!
   (fn
@@ -147,7 +126,7 @@
       (do (dom-remove-class target cls1) (dom-add-class target cls2))
       (do (dom-remove-class target cls2) (dom-add-class target cls1)))))
 
-;; Find previous sibling matching a selector.
+;; Find next sibling matching a selector (or any sibling).
 (define
   hs-toggle-style!
   (fn
@@ -171,7 +150,7 @@
             (dom-set-style target prop "hidden")
             (dom-set-style target prop "")))))))
 
-;; First element matching selector within a scope.
+;; Find previous sibling matching a selector.
 (define
   hs-toggle-style-between!
   (fn
@@ -183,7 +162,7 @@
         (dom-set-style target prop val2)
         (dom-set-style target prop val1)))))
 
-;; Last element matching selector.
+;; First element matching selector within a scope.
 (define
   hs-toggle-style-cycle!
   (fn
@@ -204,7 +183,7 @@
             (true (find-next (rest remaining))))))
       (dom-set-style target prop (find-next vals)))))
 
-;; First/last within a specific scope.
+;; Last element matching selector.
 (define
   hs-take!
   (fn
@@ -244,6 +223,7 @@
               (dom-set-attr target name attr-val)
               (dom-set-attr target name ""))))))))
 
+;; First/last within a specific scope.
 (begin
   (define
     hs-element?
@@ -355,9 +335,6 @@
                 (dom-insert-adjacent-html target "beforeend" value)
                 (hs-boot-subtree! target)))))))))
 
-;; ── Iteration ───────────────────────────────────────────────────
-
-;; Repeat a thunk N times.
 (define
   hs-add-to!
   (fn
@@ -370,7 +347,9 @@
           (append target (list value))))
       (true (do (host-call target "push" value) target)))))
 
-;; Repeat forever (until break — relies on exception/continuation).
+;; ── Iteration ───────────────────────────────────────────────────
+
+;; Repeat a thunk N times.
 (define
   hs-remove-from!
   (fn
@@ -380,10 +359,7 @@
       (filter (fn (x) (not (= x value))) target)
       (host-call target "splice" (host-call target "indexOf" value) 1))))
 
-;; ── Fetch ───────────────────────────────────────────────────────
+;; Repeat forever (until break — relies on exception/continuation).
-
-;; Fetch a URL, parse response according to format.
-;; (hs-fetch url format) — format is "json" | "text" | "html"
 (define
   hs-splice-at!
   (fn
@@ -407,10 +383,10 @@
               (host-call target "splice" i 1))))
         target))))
 
-;; ── Type coercion ───────────────────────────────────────────────
+;; ── Fetch ───────────────────────────────────────────────────────
 
-;; Coerce a value to a type by name.
+;; Fetch a URL, parse response according to format.
-;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
+;; (hs-fetch url format) — format is "json" | "text" | "html"
 (define
   hs-index
   (fn
@@ -422,10 +398,10 @@
       ((string? obj) (nth obj key))
       (true (host-get obj key)))))
 
-;; ── Object creation ─────────────────────────────────────────────
+;; ── Type coercion ───────────────────────────────────────────────
 
-;; Make a new object of a given type.
+;; Coerce a value to a type by name.
-;; (hs-make type-name) — creates empty object/collection
+;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
 (define
   hs-put-at!
   (fn
@@ -447,11 +423,10 @@
                 ((= pos "start") (host-call target "unshift" value)))
               target)))))))
 
-;; ── Behavior installation ───────────────────────────────────────
+;; ── Object creation ─────────────────────────────────────────────
 
-;; Install a behavior on an element.
+;; Make a new object of a given type.
-;; A behavior is a function that takes (me ...params) and sets up features.
+;; (hs-make type-name) — creates empty object/collection
-;; (hs-install behavior-fn me ...args)
 (define
   hs-dict-without
   (fn
@@ -472,27 +447,27 @@
           (host-call (host-global "Reflect") "deleteProperty" out key)
           out)))))
 
-;; ── Measurement ─────────────────────────────────────────────────
+;; ── Behavior installation ───────────────────────────────────────
 
-;; Measure an element's bounding rect, store as local variables.
+;; Install a behavior on an element.
-;; Returns a dict with x, y, width, height, top, left, right, bottom.
+;; A behavior is a function that takes (me ...params) and sets up features.
+;; (hs-install behavior-fn me ...args)
 (define
   hs-set-on!
   (fn
     (props target)
     (for-each (fn (k) (host-set! target k (get props k))) (keys props))))
 
+;; ── Measurement ─────────────────────────────────────────────────
+
+;; Measure an element's bounding rect, store as local variables.
+;; Returns a dict with x, y, width, height, top, left, right, bottom.
+(define hs-navigate! (fn (url) (perform (list (quote io-navigate) url))))
+
 ;; Return the current text selection as a string.  In the browser this is
 ;; `window.getSelection().toString()`.  In the mock test runner, a test
 ;; setup stashes the desired selection text at `window.__test_selection`
 ;; and the fallback path returns that so tests can assert on the result.
-(define hs-navigate! (fn (url) (perform (list (quote io-navigate) url))))
-
-
-;; ── Transition ──────────────────────────────────────────────────
-
-;; Transition a CSS property to a value, optionally with duration.
-;; (hs-transition target prop value duration)
 (define
   hs-ask
   (fn
@@ -501,6 +476,11 @@
       ((w (host-global "window")))
       (if w (host-call w "prompt" msg) nil))))
 
+
+;; ── Transition ──────────────────────────────────────────────────
+
+;; Transition a CSS property to a value, optionally with duration.
+;; (hs-transition target prop value duration)
 (define
   hs-answer
   (fn
@@ -654,10 +634,6 @@
   hs-query-all
   (fn (sel) (host-call (dom-body) "querySelectorAll" sel)))
 
-
-
-
-
 (define
   hs-query-all-in
   (fn
@@ -667,21 +643,25 @@
       (hs-query-all sel)
       (host-call target "querySelectorAll" sel))))
 
+
+
+
+
 (define
   hs-list-set
   (fn
     (lst idx val)
     (append (take lst idx) (cons val (drop lst (+ idx 1))))))
-;; ── Sandbox/test runtime additions ──────────────────────────────
+
-;; Property access — dot notation and .length
 (define
   hs-to-number
   (fn (v) (if (number? v) v (or (parse-number (str v)) 0))))
-;; DOM query stub — sandbox returns empty list
+;; ── Sandbox/test runtime additions ──────────────────────────────
+;; Property access — dot notation and .length
 (define
   hs-query-first
   (fn (sel) (host-call (host-global "document") "querySelector" sel)))
-;; Method dispatch — obj.method(args)
+;; DOM query stub — sandbox returns empty list
 (define
   hs-query-last
   (fn
@@ -689,11 +669,11 @@
     (let
       ((all (dom-query-all (dom-body) sel)))
       (if (> (len all) 0) (nth all (- (len all) 1)) nil))))
+;; Method dispatch — obj.method(args)
+(define hs-first (fn (scope sel) (dom-query-all scope sel)))
 
 ;; ── 0.9.90 features ─────────────────────────────────────────────
 ;; beep! — debug logging, returns value unchanged
-(define hs-first (fn (scope sel) (dom-query-all scope sel)))
-;; Property-based is — check obj.key truthiness
 (define
   hs-last
   (fn
@@ -701,7 +681,7 @@
     (let
       ((all (dom-query-all scope sel)))
       (if (> (len all) 0) (nth all (- (len all) 1)) nil))))
-;; Array slicing (inclusive both ends)
+;; Property-based is — check obj.key truthiness
 (define
   hs-repeat-times
   (fn
@@ -719,7 +699,7 @@
               ((= signal "hs-continue") (do-repeat (+ i 1)))
               (true (do-repeat (+ i 1))))))))
     (do-repeat 0)))
-;; Collection: sorted by
+;; Array slicing (inclusive both ends)
 (define
   hs-repeat-forever
   (fn
@@ -735,7 +715,7 @@
             ((= signal "hs-continue") (do-forever))
             (true (do-forever))))))
     (do-forever)))
-;; Collection: sorted by descending
+;; Collection: sorted by
 (define
   hs-repeat-while
   (fn
@@ -748,7 +728,7 @@
           ((= signal "hs-break") nil)
           ((= signal "hs-continue") (hs-repeat-while cond-fn thunk))
           (true (hs-repeat-while cond-fn thunk)))))))
-;; Collection: split by
+;; Collection: sorted by descending
 (define
   hs-repeat-until
   (fn
@@ -760,7 +740,7 @@
         ((= signal "hs-continue")
           (if (cond-fn) nil (hs-repeat-until cond-fn thunk)))
         (true (if (cond-fn) nil (hs-repeat-until cond-fn thunk)))))))
-;; Collection: joined by
+;; Collection: split by
 (define
   hs-for-each
   (fn
@@ -780,7 +760,7 @@
                 ((= signal "hs-continue") (do-loop (rest remaining)))
                 (true (do-loop (rest remaining))))))))
       (do-loop items))))
-
+;; Collection: joined by
 (begin
   (define
     hs-append
@@ -1535,25 +1515,6 @@
                 (hs-contains? (rest collection) item))))))
       (true false))))
 
-(define
-  hs-in?
-  (fn
-    (collection item)
-    (cond
-      ((nil? collection) (list))
-      ((list? collection)
-        (cond
-          ((nil? item) (list))
-          ((list? item)
-            (filter (fn (x) (hs-contains? collection x)) item))
-          ((hs-contains? collection item) (list item))
-          (true (list))))
-      (true (list)))))
-
-(define
-  hs-in-bool?
-  (fn (collection item) (not (hs-falsy? (hs-in? collection item)))))
-
 (define
   hs-is
   (fn
@@ -2134,13 +2095,7 @@
                 -1
                 (if (= (first lst) item) i (idx-loop (rest lst) (+ i 1))))))
           (idx-loop obj 0)))
-      (true
+      (true nil))))
-        (let
-          ((fn-val (host-get obj method)))
-          (cond
-            ((and fn-val (callable? fn-val)) (apply fn-val args))
-            (fn-val (apply host-call (cons obj (cons method args))))
-            (true nil)))))))
 
 (define hs-beep (fn (v) v))
 
@@ -2519,9 +2474,3 @@
       ((nil? b) false)
       ((= a b) true)
       (true (hs-dom-is-ancestor? a (dom-parent b))))))
-
-(define
-  hs-win-call
-  (fn
-    (fn-name args)
-    (let ((fn (host-global fn-name))) (if fn (host-call-fn fn args) nil))))

lib/js/lexer.sx

@@ -94,7 +94,7 @@
   (fn
     (src)
     (let
-      ((tokens (list)) (pos 0) (src-len (len src)))
+      ((tokens (list)) (pos 0) (src-len (len src)) (nl-before false))
       (define
         js-peek
         (fn
@@ -109,11 +109,7 @@
           (let
             ((sl (len s)))
             (and (<= (+ pos sl) src-len) (= (slice src pos (+ pos sl)) s)))))
-      (define
+      (define js-emit! (fn (type value start) (append! tokens {:pos start :value value :type type :nl nl-before})))
-        js-emit!
-        (fn
-          (type value start)
-          (append! tokens (js-make-token type value start))))
       (define
         skip-line-comment!
         (fn
@@ -136,7 +132,13 @@
           ()
           (cond
             ((>= pos src-len) nil)
-            ((js-ws? (cur)) (do (advance! 1) (skip-ws!)))
+            ((js-ws? (cur))
+              (do
+                (when
+                  (or (= (cur) "\n") (= (cur) "\r"))
+                  (set! nl-before true))
+                (advance! 1)
+                (skip-ws!)))
             ((and (= (cur) "/") (< (+ pos 1) src-len) (= (js-peek 1) "/"))
               (do (advance! 2) (skip-line-comment!) (skip-ws!)))
             ((and (= (cur) "/") (< (+ pos 1) src-len) (= (js-peek 1) "*"))
@@ -568,6 +570,7 @@
         (fn
           ()
           (do
+            (set! nl-before false)
             (skip-ws!)
             (when
               (< pos src-len)

lib/js/parser.sx

@@ -835,6 +835,12 @@
   jp-eat-semi
   (fn (st) (if (jp-at? st "punct" ";") (do (jp-advance! st) nil) nil)))
 
+(define
+  jp-token-nl?
+  (fn
+    (st)
+    (let ((tok (jp-peek st))) (if tok (= (get tok :nl) true) false))))
+
 (define
   jp-parse-vardecl
   (fn
@@ -1166,6 +1172,7 @@
         (or
           (jp-at? st "punct" ";")
           (jp-at? st "punct" "}")
+          (jp-token-nl? st)
           (jp-at? st "eof" nil))
         (do (jp-eat-semi st) (list (quote js-return) nil))
         (let

lib/js/runtime.sx

@@ -1169,7 +1169,14 @@
       ((= v false) "false")
       ((= (type-of v) "string") v)
       ((= (type-of v) "number") (js-number-to-string v))
-      (else (str v)))))
+      (else
+        (if
+          (= (type-of v) "dict")
+          (if
+            (contains? (keys v) "__js_string_value__")
+            (get v "__js_string_value__")
+            "[object Object]")
+          (str v))))))
 
 (define
   js-template-concat
@@ -1187,6 +1194,79 @@
         (+ i 1)
         (str acc (js-to-string (nth parts i)))))))
 
+(define
+  js-big-int-str-loop
+  (fn
+    (n acc)
+    (if
+      (< n 1)
+      (if (= acc "") "0" acc)
+      (let
+        ((d (floor (- n (* 10 (floor (/ n 10)))))))
+        (js-big-int-str-loop
+          (floor (/ n 10))
+          (str (js-string-slice "0123456789" d (+ d 1)) acc))))))
+
+(define
+  js-find-decimal-k
+  (fn
+    (n k)
+    (if
+      (> k 17)
+      17
+      (let
+        ((big-int (round (* n (js-pow-int 10 k)))))
+        (if
+          (= (/ big-int (js-pow-int 10 k)) n)
+          k
+          (js-find-decimal-k n (+ k 1)))))))
+
+(define
+  js-format-decimal-digits
+  (fn
+    (digits k)
+    (if
+      (= k 0)
+      digits
+      (let
+        ((dlen (len digits)))
+        (if
+          (> dlen k)
+          (str
+            (js-string-slice digits 0 (- dlen k))
+            "."
+            (js-string-slice digits (- dlen k) dlen))
+          (if
+            (= dlen k)
+            (str "0." digits)
+            (str "0." (js-string-repeat "0" (- k dlen)) digits)))))))
+
+(define
+  js-expand-sci-notation
+  (fn
+    (mant exp-n)
+    (let
+      ((di (js-string-index-of mant "." 0)))
+      (let
+        ((int-part (if (< di 0) mant (js-string-slice mant 0 di)))
+          (frac-part
+            (if (< di 0) "" (js-string-slice mant (+ di 1) (len mant)))))
+        (let
+          ((all-digits (str int-part frac-part))
+            (frac-len (if (< di 0) 0 (- (- (len mant) di) 1))))
+          (if
+            (>= exp-n 0)
+            (if
+              (>= exp-n frac-len)
+              (str all-digits (js-string-repeat "0" (- exp-n frac-len)))
+              (let
+                ((dot-pos (+ (len int-part) exp-n)))
+                (str
+                  (js-string-slice all-digits 0 dot-pos)
+                  "."
+                  (js-string-slice all-digits dot-pos (len all-digits)))))
+            (str "0." (js-string-repeat "0" (- (- 0 exp-n) 1)) all-digits)))))))
+
 (define
   js-number-to-string
   (fn
@@ -1195,7 +1275,16 @@
       ((js-number-is-nan n) "NaN")
       ((= n (js-infinity-value)) "Infinity")
       ((= n (- 0 (js-infinity-value))) "-Infinity")
-      (else (js-normalize-num-str (str n))))))
+      (else
+        (let
+          ((pos-n (if (< n 0) (- 0 n) n)))
+          (let
+            ((s0 (js-normalize-num-str (str pos-n))))
+            (let
+              ((n2 (js-to-number s0)))
+              (let
+                ((precise (if (= n2 pos-n) (let ((ei (js-string-index-of s0 "e" 0))) (if (< ei 0) s0 (let ((exp-n (js-to-number (js-string-slice s0 (+ ei 1) (len s0))))) (if (and (>= exp-n -6) (<= exp-n 20)) (js-expand-sci-notation (js-string-slice s0 0 ei) exp-n) (if (>= exp-n 0) (str (js-string-slice s0 0 (+ ei 1)) "+" (str exp-n)) s0))))) (if (and (>= pos-n 1e-06) (< pos-n 1e+21)) (let ((k (js-find-decimal-k pos-n 0))) (let ((big-int (round (* pos-n (js-pow-int 10 k))))) (js-format-decimal-digits (js-big-int-str-loop big-int "") k))) (let ((ei (js-string-index-of s0 "e" 0))) (if (< ei 0) s0 (let ((exp-n (js-to-number (js-string-slice s0 (+ ei 1) (len s0))))) (if (>= exp-n 0) (str (js-string-slice s0 0 (+ ei 1)) "+" (str exp-n)) s0))))))))
+                (if (< n 0) (str "-" precise) precise)))))))))
 
 (define
   js-normalize-num-str
@@ -1296,6 +1385,10 @@
         (= (js-to-number a) b))
       ((= (type-of a) "boolean") (js-loose-eq (js-to-number a) b))
       ((= (type-of b) "boolean") (js-loose-eq a (js-to-number b)))
+      ((and (dict? a) (contains? (keys a) "__js_string_value__"))
+        (js-loose-eq (get a "__js_string_value__") b))
+      ((and (dict? b) (contains? (keys b) "__js_string_value__"))
+        (js-loose-eq a (get b "__js_string_value__")))
       (else false))))
 
 (define js-loose-neq (fn (a b) (not (js-loose-eq a b))))
@@ -1903,7 +1996,15 @@
               (char-code (char-at s idx))
               0))))
       ((= name "indexOf")
-        (fn (needle) (js-string-index-of s (js-to-string needle) 0)))
+        (fn
+          (&rest args)
+          (if
+            (empty? args)
+            -1
+            (js-string-index-of
+              s
+              (js-to-string (nth args 0))
+              (if (< (len args) 2) 0 (max 0 (js-num-to-int (nth args 1))))))))
       ((= name "slice")
         (fn
           (&rest args)
@@ -1927,7 +2028,16 @@
               (js-string-slice s lo (min hi (len s)))))))
       ((= name "toUpperCase") (fn () (js-upper-case s)))
       ((= name "toLowerCase") (fn () (js-lower-case s)))
-      ((= name "split") (fn (sep) (js-string-split s (js-to-string sep))))
+      ((= name "split")
+        (fn
+          (&rest args)
+          (let
+            ((sep (if (= (len args) 0) :js-undefined (nth args 0)))
+              (limit
+                (if (< (len args) 2) -1 (js-num-to-int (nth args 1)))))
+            (let
+              ((result (js-string-split s (js-to-string sep))))
+              (if (< limit 0) result (js-list-take result limit))))))
       ((= name "concat")
         (fn (&rest args) (js-string-concat-loop s args 0)))
       ((= name "includes")
@@ -2042,6 +2152,17 @@
                     (= idx -1)
                     nil
                     (let ((res (list))) (append! res needle) res))))))))
+      ((= name "matchAll")
+        (fn
+          (&rest args)
+          (if
+            (empty? args)
+            (list)
+            (let
+              ((needle (js-to-string (nth args 0))))
+              (let
+                ((loop (fn (start acc) (let ((idx (js-string-index-of s needle start))) (if (= idx -1) acc (let ((m (list))) (begin (append! m needle) (dict-set! m "index" idx) (loop (+ idx (max 1 (len needle))) (begin (append! acc m) acc)))))))))
+                (loop 0 (list)))))))
       ((= name "at")
         (fn
           (i)
@@ -2068,7 +2189,14 @@
             -1
             (let
               ((needle (js-to-string (nth args 0))))
-              (js-string-last-index-of s needle (- (len s) (len needle)))))))
+              (let
+                ((default-start (- (len s) (len needle)))
+                  (from
+                    (if (< (len args) 2) -1 (js-num-to-int (nth args 1)))))
+                (js-string-last-index-of
+                  s
+                  needle
+                  (if (< from 0) default-start (min from default-start))))))))
       ((= name "localeCompare")
         (fn
           (&rest args)
@@ -2166,6 +2294,15 @@
       ((not (= (char-at s (+ si ni)) (char-at needle ni))) false)
       (else (js-string-matches? s needle si (+ ni 1))))))
 
+(define
+  js-list-take
+  (fn
+    (lst n)
+    (if
+      (or (<= n 0) (empty? lst))
+      (list)
+      (cons (first lst) (js-list-take (rest lst) (- n 1))))))
+
 (define
   js-string-split
   (fn
@@ -2306,7 +2443,13 @@
               (js-string-method obj "toLocaleUpperCase"))
             ((= key "isWellFormed") (js-string-method obj "isWellFormed"))
             ((= key "toWellFormed") (js-string-method obj "toWellFormed"))
-            (else js-undefined)))
+            (else
+              (let
+                ((proto (get String "prototype")))
+                (if
+                  (and (dict? proto) (contains? (keys proto) key))
+                  (get proto key)
+                  js-undefined)))))
         ((= (type-of obj) "dict")
           (js-dict-get-walk obj (js-to-string key)))
         ((and (= obj Promise) (dict-has? __js_promise_statics__ (js-to-string key)))
@@ -2480,7 +2623,49 @@
         ((n (js-to-number (first args))))
         (js-math-hypot-loop (rest args) (+ acc (* n n)))))))
 
-(define Math {:random js-math-random :trunc js-math-trunc :LN10 2.30259 :SQRT1_2 0.707107 :floor js-math-floor :PI 3.14159 :sqrt js-math-sqrt :hypot js-math-hypot :LOG2E 1.4427 :round js-math-round :ceil js-math-ceil :abs js-math-abs :pow js-math-pow :max js-math-max :LOG10E 0.434294 :SQRT2 1.41421 :cbrt js-math-cbrt :min js-math-min :sign js-math-sign :E 2.71828 :LN2 0.693147})
+(begin
+  (define js-math-sin (fn (x) (sin (js-to-number x))))
+  (define js-math-cos (fn (x) (cos (js-to-number x))))
+  (define js-math-tan (fn (x) (tan (js-to-number x))))
+  (define js-math-asin (fn (x) (asin (js-to-number x))))
+  (define js-math-acos (fn (x) (acos (js-to-number x))))
+  (define js-math-atan (fn (x) (atan (js-to-number x))))
+  (define
+    js-math-atan2
+    (fn (y x) (atan2 (js-to-number y) (js-to-number x))))
+  (define js-math-sinh (fn (x) (sinh (js-to-number x))))
+  (define js-math-cosh (fn (x) (cosh (js-to-number x))))
+  (define js-math-tanh (fn (x) (tanh (js-to-number x))))
+  (define js-math-asinh (fn (x) (asinh (js-to-number x))))
+  (define js-math-acosh (fn (x) (acosh (js-to-number x))))
+  (define js-math-atanh (fn (x) (atanh (js-to-number x))))
+  (define js-math-exp (fn (x) (exp (js-to-number x))))
+  (define js-math-log (fn (x) (log (js-to-number x))))
+  (define js-math-log2 (fn (x) (log2 (js-to-number x))))
+  (define js-math-log10 (fn (x) (log10 (js-to-number x))))
+  (define js-math-expm1 (fn (x) (expm1 (js-to-number x))))
+  (define js-math-log1p (fn (x) (log1p (js-to-number x))))
+  (define
+    js-math-clz32
+    (fn
+      (&rest args)
+      (let
+        ((x (if (empty? args) 0 (js-to-number (nth args 0)))))
+        (let
+          ((n (modulo (floor x) 4294967296)))
+          (if (= n 0) 32 (- 31 (floor (log2 n))))))))
+  (define
+    js-math-imul
+    (fn
+      (a b)
+      (let
+        ((a32 (modulo (floor (js-to-number a)) 4294967296))
+          (b32 (modulo (floor (js-to-number b)) 4294967296)))
+        (let
+          ((result (modulo (* a32 b32) 4294967296)))
+          (if (>= result 2147483648) (- result 4294967296) result)))))
+  (define js-math-fround (fn (x) (js-to-number x)))
+  (define Math {:trunc js-math-trunc :expm1 js-math-expm1 :atan2 js-math-atan2 :PI 3.14159 :asinh js-math-asinh :acosh js-math-acosh :hypot js-math-hypot :LOG2E 1.4427 :atanh js-math-atanh :ceil js-math-ceil :pow js-math-pow :sin js-math-sin :max js-math-max :log2 js-math-log2 :SQRT2 1.41421 :cbrt js-math-cbrt :log1p js-math-log1p :fround js-math-fround :E 2.71828 :sinh js-math-sinh :random js-math-random :LN10 2.30259 :SQRT1_2 0.707107 :asin js-math-asin :clz32 js-math-clz32 :floor js-math-floor :exp js-math-exp :tan js-math-tan :sqrt js-math-sqrt :cosh js-math-cosh :log js-math-log :round js-math-round :abs js-math-abs :LOG10E 0.434294 :tanh js-math-tanh :acos js-math-acos :log10 js-math-log10 :min js-math-min :sign js-math-sign :LN2 0.693147 :cos js-math-cos :imul js-math-imul :atan js-math-atan}))
 
 (define
   js-number-is-finite
@@ -2986,6 +3171,35 @@
   js-string-from-char-code
   (fn (&rest args) (js-string-from-char-code-loop args 0 "")))
 
+(define
+  js-string-from-code-point-loop
+  (fn
+    (args i acc)
+    (if
+      (>= i (len args))
+      acc
+      (let
+        ((cp (floor (js-to-number (nth args i)))))
+        (if
+          (< cp 65536)
+          (js-string-from-code-point-loop
+            args
+            (+ i 1)
+            (str acc (js-code-to-char (js-num-to-int cp))))
+          (let
+            ((hi (+ 55296 (floor (/ (- cp 65536) 1024))))
+              (lo (+ 56320 (modulo (- cp 65536) 1024))))
+            (js-string-from-code-point-loop
+              args
+              (+ i 1)
+              (str
+                (str acc (js-code-to-char (js-num-to-int hi)))
+                (js-code-to-char (js-num-to-int lo))))))))))
+
+(define
+  js-string-from-code-point
+  (fn (&rest args) (js-string-from-code-point-loop args 0 "")))
+
 (define
   js-string-from-char-code-loop
   (fn
@@ -3016,8 +3230,32 @@
 
 (dict-set! String "name" "String")
 
+(dict-set! String "fromCodePoint" js-string-from-code-point)
+
+(dict-set!
+  String
+  "__callable__"
+  (fn
+    (&rest args)
+    (let
+      ((raw (if (= (len args) 0) "" (js-to-string (nth args 0)))))
+      (let
+        ((this-val (js-this)))
+        (if
+          (dict? this-val)
+          (begin
+            (dict-set! this-val "__js_string_value__" raw)
+            (dict-set! this-val "length" (len raw))
+            this-val)
+          raw)))))
+
 (define Boolean {:__callable__ (fn (&rest args) (if (= (len args) 0) false (js-to-boolean (nth args 0))))})
 
+(dict-set!
+  (get String "prototype")
+  "matchAll"
+  (js-string-proto-fn "matchAll"))
+
 (dict-set! Boolean "length" 1)
 
 (dict-set! Boolean "name" "Boolean")

lib/js/test.sh

@@ -1323,6 +1323,25 @@ cat > "$TMPFILE" << 'EPOCHS'
 (epoch 3505)
 (eval "(js-eval \"var a = {length: 3, 0: 10, 1: 20, 2: 30}; var sum = 0; Array.prototype.forEach.call(a, function(x){sum += x;}); sum\")")
 
+;; ── Phase 1.ASI: automatic semicolon insertion ─────────────────
+(epoch 4200)
+(eval "(js-eval \"function f() { return\n42\n} f()\")")
+(epoch 4201)
+(eval "(js-eval \"function g() { return 42 } g()\")")
+(epoch 4202)
+(eval "(let ((toks (js-tokenize \"a\nb\"))) (get (nth toks 1) :nl))")
+(epoch 4203)
+(eval "(let ((toks (js-tokenize \"a b\"))) (get (nth toks 1) :nl))")
+
+(epoch 4300)
+(eval "(js-eval \"var x = 5; x\")")
+(epoch 4301)
+(eval "(js-eval \"function f() { return x; var x = 42; } f()\")")
+(epoch 4302)
+(eval "(js-eval \"function f() { var y = 7; return y; } f()\")")
+(epoch 4303)
+(eval "(js-eval \"function f() { var z; z = 3; return z; } f()\")")
+
 EPOCHS
 
 
@@ -2042,6 +2061,17 @@ check 3503 "indexOf.call arrLike"          '1'
 check 3504 "filter.call arrLike"           '"2,3"'
 check 3505 "forEach.call arrLike sum"      '60'
 
+# ── Phase 1.ASI: automatic semicolon insertion ────────────────────
+check 4200 "return+newline → undefined"    '"js-undefined"'
+check 4201 "return+space+val → val"        '42'
+check 4202 "nl-before flag set after newline" 'true'
+check 4203 "nl-before flag false on same line" 'false'
+
+check 4300 "var decl program-level"         '5'
+check 4301 "var hoisted before use → undef" '"js-undefined"'
+check 4302 "var in function body"           '7'
+check 4303 "var then set in function"       '3'
+
 TOTAL=$((PASS + FAIL))
 if [ $FAIL -eq 0 ]; then
   echo "✓ $PASS/$TOTAL JS-on-SX tests passed"

lib/js/test262-scoreboard.json

@@ -1,84 +1,42 @@
 {
   "totals": {
-    "pass": 162,
+    "pass": 62,
-    "fail": 128,
+    "fail": 29,
-    "skip": 1597,
+    "skip": 1130,
-    "timeout": 10,
+    "timeout": 9,
-    "total": 1897,
+    "total": 1230,
-    "runnable": 300,
+    "runnable": 100,
-    "pass_rate": 54.0
+    "pass_rate": 62.0
   },
   "categories": [
-    {
-      "category": "built-ins/Math",
-      "total": 327,
-      "pass": 43,
-      "fail": 56,
-      "skip": 227,
-      "timeout": 1,
-      "pass_rate": 43.0,
-      "top_failures": [
-        [
-          "TypeError: not a function",
-          36
-        ],
-        [
-          "Test262Error (assertion failed)",
-          20
-        ],
-        [
-          "Timeout",
-          1
-        ]
-      ]
-    },
-    {
-      "category": "built-ins/Number",
-      "total": 340,
-      "pass": 77,
-      "fail": 19,
-      "skip": 240,
-      "timeout": 4,
-      "pass_rate": 77.0,
-      "top_failures": [
-        [
-          "Test262Error (assertion failed)",
-          19
-        ],
-        [
-          "Timeout",
-          4
-        ]
-      ]
-    },
     {
       "category": "built-ins/String",
       "total": 1223,
-      "pass": 42,
+      "pass": 62,
-      "fail": 53,
+      "fail": 29,
       "skip": 1123,
-      "timeout": 5,
+      "timeout": 9,
-      "pass_rate": 42.0,
+      "pass_rate": 62.0,
       "top_failures": [
         [
           "Test262Error (assertion failed)",
-          44
+          24
         ],
         [
           "Timeout",
-          5
+          9
-        ],
-        [
-          "ReferenceError (undefined symbol)",
-          2
-        ],
-        [
-          "Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)",
-          2
         ],
         [
           "Unhandled: Not callable: \\\\\\",
-          2
+          1
+        ],
+        [
+          "ReferenceError (undefined symbol)",
+          1
+        ],
+        [
+          "SyntaxError (parse/unsupported syntax)",
+          1
         ]
       ]
     },
@@ -96,34 +54,26 @@
   "top_failure_modes": [
     [
       "Test262Error (assertion failed)",
-      83
+      24
-    ],
-    [
-      "TypeError: not a function",
-      36
     ],
     [
       "Timeout",
-      10
+      9
-    ],
-    [
-      "ReferenceError (undefined symbol)",
-      2
-    ],
-    [
-      "Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)",
-      2
     ],
     [
       "Unhandled: Not callable: \\\\\\",
-      2
+      1
+    ],
+    [
+      "ReferenceError (undefined symbol)",
+      1
     ],
     [
       "SyntaxError (parse/unsupported syntax)",
       1
     ],
     [
-      "Unhandled: Not callable: {:__proto__ {:valueOf <lambda()> :propertyIsEn",
+      "TypeError: not a function",
       1
     ],
     [
@@ -132,6 +82,6 @@
     ]
   ],
   "pinned_commit": "d5e73fc8d2c663554fb72e2380a8c2bc1a318a33",
-  "elapsed_seconds": 274.5,
+  "elapsed_seconds": 40.5,
-  "workers": 1
+  "workers": 7
 }

lib/js/test262-scoreboard.md

@@ -1,47 +1,32 @@
 # test262 scoreboard
 
 Pinned commit: `d5e73fc8d2c663554fb72e2380a8c2bc1a318a33`
-Wall time: 274.5s
+Wall time: 40.5s
 
-**Total:** 162/300 runnable passed (54.0%). Raw: pass=162 fail=128 skip=1597 timeout=10 total=1897.
+**Total:** 62/100 runnable passed (62.0%). Raw: pass=62 fail=29 skip=1130 timeout=9 total=1230.
 
 ## Top failure modes
 
-- **83x** Test262Error (assertion failed)
+- **24x** Test262Error (assertion failed)
-- **36x** TypeError: not a function
+- **9x** Timeout
-- **10x** Timeout
+- **1x** Unhandled: Not callable: \\\
-- **2x** ReferenceError (undefined symbol)
+- **1x** ReferenceError (undefined symbol)
-- **2x** Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)
-- **2x** Unhandled: Not callable: \\\
 - **1x** SyntaxError (parse/unsupported syntax)
-- **1x** Unhandled: Not callable: {:__proto__ {:valueOf <lambda()> :propertyIsEn
+- **1x** TypeError: not a function
 - **1x** Unhandled: js-transpile-binop: unsupported op: >>>\
 
 ## Categories (worst pass-rate first, min 10 runnable)
 
 | Category | Pass | Fail | Skip | Timeout | Total | Pass % |
 |---|---:|---:|---:|---:|---:|---:|
-| built-ins/String | 42 | 53 | 1123 | 5 | 1223 | 42.0% |
+| built-ins/String | 62 | 29 | 1123 | 9 | 1223 | 62.0% |
-| built-ins/Math | 43 | 56 | 227 | 1 | 327 | 43.0% |
-| built-ins/Number | 77 | 19 | 240 | 4 | 340 | 77.0% |
 
 ## Per-category top failures (min 10 runnable, worst first)
 
-### built-ins/String  (42/100 — 42.0%)
+### built-ins/String  (62/100 — 62.0%)
 
-- **44x** Test262Error (assertion failed)
+- **24x** Test262Error (assertion failed)
-- **5x** Timeout
+- **9x** Timeout
-- **2x** ReferenceError (undefined symbol)
+- **1x** Unhandled: Not callable: \\\
-- **2x** Unhandled: Not callable: {:__proto__ {:toLowerCase <lambda(&rest, args)
+- **1x** ReferenceError (undefined symbol)
-- **2x** Unhandled: Not callable: \\\
+- **1x** SyntaxError (parse/unsupported syntax)
-
-### built-ins/Math  (43/100 — 43.0%)
-
-- **36x** TypeError: not a function
-- **20x** Test262Error (assertion failed)
-- **1x** Timeout
-
-### built-ins/Number  (77/100 — 77.0%)
-
-- **19x** Test262Error (assertion failed)
-- **4x** Timeout

lib/js/transpile.sx

@@ -486,6 +486,51 @@
                 (append inits (list (js-transpile body))))))))
       (list (js-sym "fn") param-syms body-tr))))
 
+(define
+  js-collect-var-decl-names
+  (fn
+    (decls)
+    (cond
+      ((empty? decls) (list))
+      ((js-tag? (first decls) "js-vardecl")
+        (cons
+          (nth (first decls) 1)
+          (js-collect-var-decl-names (rest decls))))
+      (else (js-collect-var-decl-names (rest decls))))))
+
+(define
+  js-collect-var-names
+  (fn
+    (stmts)
+    (cond
+      ((empty? stmts) (list))
+      ((and (list? (first stmts)) (js-tag? (first stmts) "js-var") (= (nth (first stmts) 1) "var"))
+        (append
+          (js-collect-var-decl-names (nth (first stmts) 2))
+          (js-collect-var-names (rest stmts))))
+      (else (js-collect-var-names (rest stmts))))))
+
+(define
+  js-dedup-names
+  (fn
+    (names seen)
+    (cond
+      ((empty? names) (list))
+      ((some (fn (s) (= s (first names))) seen)
+        (js-dedup-names (rest names) seen))
+      (else
+        (cons
+          (first names)
+          (js-dedup-names (rest names) (cons (first names) seen)))))))
+
+(define
+  js-var-hoist-forms
+  (fn
+    (names)
+    (map
+      (fn (name) (list (js-sym "define") (js-sym name) :js-undefined))
+      names)))
+
 (define
   js-transpile-tpl
   (fn
@@ -876,7 +921,7 @@
   (fn
     (stmts)
     (let
-      ((hoisted (js-collect-funcdecls stmts)))
+      ((hoisted (append (js-var-hoist-forms (js-dedup-names (js-collect-var-names stmts) (list))) (js-collect-funcdecls stmts))))
       (let
         ((rest-stmts (js-transpile-stmt-list stmts)))
         (cons (js-sym "begin") (append hoisted rest-stmts))))))
@@ -1297,7 +1342,7 @@
           (if
             (and (list? body) (js-tag? body "js-block"))
             (let
-              ((hoisted (js-collect-funcdecls (nth body 1))))
+              ((hoisted (append (js-var-hoist-forms (js-dedup-names (js-collect-var-names (nth body 1)) (list))) (js-collect-funcdecls (nth body 1)))))
               (append hoisted (js-transpile-stmt-list (nth body 1))))
             (list (js-transpile body)))))
       (list
@@ -1333,7 +1378,7 @@
           (if
             (and (list? body) (js-tag? body "js-block"))
             (let
-              ((hoisted (js-collect-funcdecls (nth body 1))))
+              ((hoisted (append (js-var-hoist-forms (js-dedup-names (js-collect-var-names (nth body 1)) (list))) (js-collect-funcdecls (nth body 1)))))
               (append hoisted (js-transpile-stmt-list (nth body 1))))
             (list (js-transpile body)))))
       (list

plans/hs-blockers-drain.md

@@ -1,96 +0,0 @@
-# HS conformance — blockers drain
-
-Goal: take hyperscript conformance from **1277/1496 (85.4%)** to **1496/1496 (100%)** by clearing the blocked clusters and the design-done Bucket E subsystems.
-
-This plan exists because the per-iteration `loops/hs` agent can't fit these into its 30-min budget — they need dedicated multi-commit sit-downs. Track progress here; refer to `plans/hs-conformance-to-100.md` for the canonical cluster ledger.
-
-## Current state (2026-04-25)
-
-- Loop running in `/root/rose-ash-loops/hs` (branch `loops/hs`)
-- sx-tree MCP **fixed** (was a session-stale binary issue — restart of claude in the tmux window picked it up). Loop hinted to retry **#32**, **#29** first.
-- Recent loop progress: ~1 commit/6h — easy wins drained, what's left needs focused attention.
-
-## Remaining work
-
-### Bucket-A/B/C blockers (small, in-place fixes)
-
-| # | Cluster | Tests | Effort | Blocker | Fix sketch |
-|---|---------|------:|--------|---------|------------|
-| **17** | `tell` semantics | +3 | ~1h | Implicit-default-target ambiguity. `bare add .bar` inside `tell X` should target `X` but explicit `to me` must reach the original element. | Add `beingTold` symbol distinct from `me`; bare commands compile to `beingTold-or-me`; explicit `me` always the original. |
-| **22** | window global fn fallback | +2-4 | ~1h | `foo()` where `foo` isn't SX-defined needs to fall back to `(host-global "foo")`. Three attempts failed: guard (host-level error not catchable), `env-has?` (not in HS kernel), `hs-win-call` (NativeFn not callable from CALL). | Add `symbol-bound?` predicate to HS kernel **OR** a host-call-fn primitive with arity-agnostic dispatch. |
-| **29** | `hyperscript:before:init` / `:after:init` / `:parse-error` events | +4-6 | ~30m (post sx-tree fix) | Was sx-tree MCP outage. Now unblocked — loop should retry. 4 of 6 tests need stricter parser error-rejection (out of scope; mark partial). | Edit `integration.sx` to fire DOM events at activation boundaries. |
-
-### Bucket D — medium features
-
-| # | Cluster | Tests | Effort | Status |
-|---|---------|------:|--------|--------|
-| **31** | runtime null-safety error reporting | **+15-18** | **2-4h** | **THIS SESSION'S TARGET.** Plan node fully spec'd: 5 pieces of work. |
-| **32** | MutationObserver mock + `on mutation` | +10-15 | ~2h | Was sx-tree-blocked. Now unblocked — loop hinted to retry. Multi-file: parser, compiler, runtime, runner mock, generator skip-list. |
-| **33** | cookie API | +2 (remaining) | ~30m | Partial done (+3). Remaining 2 need `hs-method-call` runtime fallback for unknown methods + `hs-for-each` recognising host-array/proxy collections. |
-| 34 | event modifier DSL | +6-8 | ~1-2h | `elsewhere`, `every`, count filters (`once`/`twice`/`3 times`/ranges), `from elsewhere`. Pending. |
-| 35 | namespaced `def` | +3 | ~30m | Pending. |
-
-### Bucket E — subsystems (design docs landed, multi-commit each)
-
-Each has a design doc with a step-by-step checklist. These are 1-2 days of focused work each, not loop-fits.
-
-| # | Subsystem | Tests | Design doc | Branch |
-|---|-----------|------:|------------|--------|
-| 36 | WebSocket + `socket` + RPC Proxy | +12-16 | `plans/designs/e36-websocket.md` | `worktree-agent-a9daf73703f520257` |
-| 37 | Tokenizer-as-API | +16-17 | `plans/designs/e37-tokenizer-api.md` | `worktree-agent-a6bb61d59cc0be8b4` |
-| 38 | SourceInfo API | +4 | `plans/designs/e38-sourceinfo.md` | `agent-e38-sourceinfo` |
-| 39 | WebWorker plugin (parser-only stub) | +1 | `plans/designs/e39-webworker.md` | `hs-design-e39-webworker` |
-| 40 | Real Fetch / non-2xx / before-fetch | +7 | `plans/designs/e40-real-fetch.md` | `worktree-agent-a94612a4283eaa5e0` |
-
-### Bucket F — generator translation gaps
-
-~25 tests SKIP'd because `tests/playwright/generate-sx-tests.py` bails with `return None`. Single dedicated generator-repair sit-down once Bucket D is drained. ~half-day.
-
-## Order of attack
-
-In approximate cost-per-test order:
-
-1. **Loop self-heal** (no human work) — wait for #29, #32 to land via the running loop ⏱️ ~next 1-2 hours
-2. **#31 null-safety** — biggest scoped single win, dedicated worktree agent (this session)
-3. **#33 cookie API remainder** — quick partial completion
-4. **#17 / #22 / #34 / #35** — small fiddly fixes, one sit-down each
-5. **Bucket E** — pick one subsystem at a time. **#39 (WebWorker stub) first** — single commit, smallest. Then **#38 (SourceInfo)** — 4 commits. Then the bigger three (#36, #37, #40).
-6. **Bucket F** — generator repair sweep at the end.
-
-Estimated total to 100%: ~10-15 days of focused work, parallelisable across branches.
-
-## Cluster #31 spec (full detail)
-
-The plan note from `hs-conformance-to-100.md`:
-
-> 18 tests in `runtimeErrors`. When accessing `.foo` on nil, emit a structured error with position info. One coordinated fix in the compiler emit paths for property access, function calls, set/put.
-
-**Required pieces:**
-
-1. **Generator-side `eval-hs-error` helper + recognizer** for `expect(await error("HS")).toBe("MSG")` blocks. In `tests/playwright/generate-sx-tests.py`.
-2. **Runtime helpers** in `lib/hyperscript/runtime.sx`:
-   - `hs-null-error!` raising `'<sel>' is null`
-   - `hs-named-target` — wraps a query result with the original selector source
-   - `hs-named-target-list` — same for list results
-3. **Compiler patches at every target-position `(query SEL)` emit** — wrap in named-target carrying the original selector source. ~17 command emit paths in `lib/hyperscript/compiler.sx`:
-   add, remove, hide, show, measure, settle, trigger, send, set, default, increment, decrement, put, toggle, transition, append, take.
-4. **Function-call null-check** at bare `(name)`, `hs-method-call`, and `host-get` chains, deriving the leftmost-uncalled-name (`'x'` / `'x.y'`) from the parse tree.
-5. **Possessive-base null-check** (`set x's y to true` → `'x' is null`).
-
-**Files in scope:**
-- `lib/hyperscript/runtime.sx` (new helpers)
-- `lib/hyperscript/compiler.sx` (~17 emit-path edits)
-- `tests/playwright/generate-sx-tests.py` (test recognizer)
-- `tests/hs-run-filtered.js` (if mock helpers needed)
-- `shared/static/wasm/sx/hs-runtime.sx` + `hs-compiler.sx` (WASM staging copies)
-
-**Approach:** target-named pieces incrementally — runtime helpers first (no compiler change), then compiler emit paths in batches (group similar commands), then function-call/possessive at the end. Each batch is one commit if it lands +N tests; mark partial if it only unlocks part.
-
-**Watch for:** smoke-range regressions (tests flipping pass→fail). Each commit: rerun smoke 0-195 and the `runtimeErrors` suite.
-
-## Notes for future sessions
-
-- `plans/hs-conformance-to-100.md` is the canonical cluster ledger — update it on every commit.
-- `plans/hs-conformance-scoreboard.md` is the live tally — bump `Merged:` and the bucket roll-up.
-- Loop has scope rule "never edit `spec/evaluator.sx` or broader SX kernel" — most fixes here stay in `lib/hyperscript/**`, `tests/`, generator. If a fix needs kernel work, surface to the user; don't merge silently.
-- Cluster #22's `symbol-bound?` predicate would be a kernel addition — that's a real cross-boundary scope expansion.

plans/hs-conformance-scoreboard.md

@@ -4,10 +4,10 @@ Live tally for `plans/hs-conformance-to-100.md`. Update after every cluster comm
 
 ```
 Baseline:   1213/1496 (81.1%)
-Merged:     1303/1496 (87.1%)   delta +90
+Merged:     1277/1496 (85.4%)   delta +64
 Worktree:   all landed
 Target:     1496/1496 (100.0%)
-Remaining:  ~194 tests (clusters 17/29(partial)/31 blocked; 33/34 partial)
+Remaining:  ~219 tests (cluster 29 blocked on sx-tree MCP outage + parser scope)
 ```
 
 ## Cluster ledger
@@ -42,7 +42,7 @@ Remaining:  ~194 tests (clusters 17/29(partial)/31 blocked; 33/34 partial)
 | 19 | `pick` regex + indices | done | +13 | 4be90bf2 |
 | 20 | `repeat` property for-loops + where | done | +3 | c932ad59 |
 | 21 | `possessiveExpression` property access via its | done | +1 | f0c41278 |
-| 22 | window global fn fallback | done | +1 | d31565d5 |
+| 22 | window global fn fallback | blocked | — | — |
 | 23 | `me symbol works in from expressions` | done | +1 | 0d38a75b |
 | 24 | `properly interpolates values 2` | done | +1 | cb37259d |
 | 25 | parenthesized commands and features | done | +1 | d7a88d85 |
@@ -54,18 +54,18 @@ Remaining:  ~194 tests (clusters 17/29(partial)/31 blocked; 33/34 partial)
 | 26 | resize observer mock + `on resize` | done | +3 | 304a52d2 |
 | 27 | intersection observer mock + `on intersection` | done | +3 | 0c31dd27 |
 | 28 | `ask`/`answer` + prompt/confirm mock | done | +4 | 6c1da921 |
-| 29 | `hyperscript:before:init` / `:after:init` / `:parse-error` | partial | +2 | e01a3baa |
+| 29 | `hyperscript:before:init` / `:after:init` / `:parse-error` | blocked | — | — |
 | 30 | `logAll` config | done | +1 | 64bcefff |
 
 ### Bucket D — medium features
 
 | # | Cluster | Status | Δ |
 |---|---------|--------|---|
-| 31 | runtime null-safety error reporting | blocked | — |
+| 31 | runtime null-safety error reporting | pending | (+15–18 est) |
-| 32 | MutationObserver mock + `on mutation` | done | +7 |
+| 32 | MutationObserver mock + `on mutation` | pending | (+10–15 est) |
-| 33 | cookie API | partial | +4 |
+| 33 | cookie API | pending | (+5 est) |
-| 34 | event modifier DSL | partial | +7 |
+| 34 | event modifier DSL | pending | (+6–8 est) |
-| 35 | namespaced `def` | done | +3 |
+| 35 | namespaced `def` | pending | (+3 est) |
 
 ### Bucket E — subsystems (design docs landed, pending review + implementation)
 
@@ -86,9 +86,9 @@ Defer until A–D drain. Estimated ~25 recoverable tests.
 | Bucket | Done | Partial | In-prog | Pending | Blocked | Design-done | Total |
 |--------|-----:|--------:|--------:|--------:|--------:|------------:|------:|
 | A      | 12   | 4       | 0       | 0       | 1       | —           | 17    |
-| B      | 7    | 0       | 0       | 0       | 0       | —           | 7     |
+| B      | 6    | 0       | 0       | 0       | 1       | —           | 7     |
-| C      | 4    | 1       | 0       | 0       | 0       | —           | 5     |
+| C      | 4    | 0       | 0       | 0       | 1       | —           | 5     |
-| D      | 2    | 2       | 0       | 0       | 1       | —           | 5     |
+| D      | 0    | 0       | 0       | 5       | 0       | —           | 5     |
 | E      | 0    | 0       | 0       | 0       | 0       | 5           | 5     |
 | F      | —    | —       | —       | ~10     | —       | —           | ~10   |
 

plans/hs-conformance-to-100.md

@@ -69,7 +69,7 @@ Orchestrator cherry-picks worktree commits onto `architecture` one at a time; re
 
 10. **[done (+1)] `swap` variable ↔ property** — `swap / can swap a variable with a property` (1 test). Swap command doesn't handle mixed var/prop targets. Expected: +1.
 
-11. **[done (+4)] `hide` strategy** — `hide / can configure hidden as default`, `can hide with custom strategy`, `can set default to custom strategy`, `hide element then show element retains original display` (4 tests). Strategy config plumbing. Expected: +3-4.
+11. **[done (+3) — partial, `hide element then show element retains original display` remains; needs `on click N` count-filtered event handlers, out of scope for this cluster] `hide` strategy** — `hide / can configure hidden as default`, `can hide with custom strategy`, `can set default to custom strategy`, `hide element then show element retains original display` (4 tests). Strategy config plumbing. Expected: +3-4.
 
 12. **[done (+2)] `show` multi-element + display retention** — `show / can show multiple elements with inline-block`, `can filter over a set of elements using the its symbol` (2 tests). Expected: +2.
 
@@ -93,7 +93,7 @@ Orchestrator cherry-picks worktree commits onto `architecture` one at a time; re
 
 21. **[done (+1)] `possessiveExpression` property access via its** — `possessive / can access its properties` (1 test, Expected `foo` got ``). Expected: +1.
 
-22. **[done (+1)] window global fn fallback** — `regressions / can invoke functions w/ numbers in name` + `can refer to function in init blocks`. Added `host-call-fn` FFI primitive (commit 337c8265), `hs-win-call` runtime helper, simplified compiler emit (direct hs-win-call, no guard), `def` now also registers fn on `window[name]`. Generator: fixed `\"` escaping in hs-compile string literals. Expected: +2-4.
+22. **[blocked: tried three compile-time emits — (1) guard (can't catch Undefined symbol since it's a host-level error, not an SX raise), (2) env-has? (primitive not loaded in HS kernel — `Unhandled exception: "env-has?"`), and (3) hs-win-call runtime helper (works when reached but SX can't CALL a host-handle function directly — `Not callable: {:__host_handle N}` because NativeFn is not callable here). Needs either a host-call-fn primitive with arity-agnostic dispatch OR a symbol-bound? predicate in the HS kernel.] window global fn fallback** — `regressions / can invoke functions w/ numbers in name` + unlocks several others. When calling `foo()` where `foo` isn't SX-defined, fall back to `(host-global "foo")`. Design decision: either compile-time emit `(or foo (host-global "foo"))` via a helper, or add runtime lookup in the dispatch path. Expected: +2-4.
 
 23. **[done (+1)] `me symbol works in from expressions`** — `regressions` (1 test, Expected `Foo`). Check `from` expression compilation. Expected: +1.
 
@@ -109,21 +109,21 @@ Orchestrator cherry-picks worktree commits onto `architecture` one at a time; re
 
 28. **[done (+4)] `ask`/`answer` + prompt/confirm mock** — `askAnswer` 4 tests. **Requires test-name-keyed mock**: first test wants `confirm → true`, second `confirm → false`, third `prompt → "Alice"`, fourth `prompt → null`. Keyed via `_current-test-name` in the runner. Expected: +4.
 
-29. **[done (+2) — partial, 4 parser-error tests remain (basic parse error messages, parse-error event, EOF newline crash, evaluate-api-first-error). All require stricter parser error-rejection — `add - to` currently parses silently to `(set! nil (hs-add-to! (- 0 nil) nil))`, `on click blargh end on mouseenter also_bad` parses silently to `(do (hs-on me "click" (fn (event) blargh)) (hs-on me "mouseenter" (fn (event) also_bad)))`. Plus emit-error-collection runtime + hyperscript:parse-error event with detail.errors. Larger than a single cluster budget; recommend bucket-D plan-first.] `hyperscript:before:init` / `:after:init` / `:parse-error` events** — 6 tests in `bootstrap` + `parser`. Fire DOM events at activation boundaries. Expected: +4-6.
+29. **[blocked: sx-tree MCP tools returning Yojson Type_error on every file op. Can't edit integration.sx to add before:init/after:init dispatch. Also 4 of the 6 tests fundamentally require stricter parser error-rejection (add - to currently succeeds as SX expression; on click blargh end accepts blargh as symbol), which is larger than a single cluster budget.] `hyperscript:before:init` / `:after:init` / `:parse-error` events** — 6 tests in `bootstrap` + `parser`. Fire DOM events at activation boundaries. Expected: +4-6.
 
 30. **[done (+1)] `logAll` config** — 1 test. Global config that console.log's each command. Expected: +1.
 
 ### Bucket D: medium features (bigger commits, plan-first)
 
-31. **[blocked: Bucket-D plan-first scope, doesn't fit one cluster budget. All 18 tests are SKIP (untranslated) — generator has no `error("HS")` helper. Required pieces: (a) generator-side `eval-hs-error` helper + recognizer for `expect(await error("HS")).toBe("MSG")` blocks; (b) runtime helpers `hs-null-error!` / `hs-named-target` / `hs-named-target-list` raising `'<sel>' is null`; (c) compiler patches at every target-position `(query SEL)` emit to wrap in named-target carrying the original selector source — that's ~17 command emit paths (add, remove, hide, show, measure, settle, trigger, send, set, default, increment, decrement, put, toggle, transition, append, take); (d) function-call null-check at bare `(name)`, `hs-method-call`, and `host-get` chains, deriving the leftmost-uncalled-name `'x'` / `'x.y'` from the parse tree; (e) possessive-base null-check (`set x's y to true` → `'x' is null`). Each piece is straightforward in isolation but the cross-cutting compiler change touches every emit path and needs a coordinated design pass. Recommend a dedicated design doc + multi-commit worktree like buckets E36-E40.] runtime null-safety error reporting** — 18 tests in `runtimeErrors`. When accessing `.foo` on nil, emit a structured error with position info. One coordinated fix in the compiler emit paths for property access, function calls, set/put. Expected: +15-18.
+31. **[pending] runtime null-safety error reporting** — 18 tests in `runtimeErrors`. When accessing `.foo` on nil, emit a structured error with position info. One coordinated fix in the compiler emit paths for property access, function calls, set/put. Expected: +15-18.
 
-32. **[done (+7)] MutationObserver mock + `on mutation` dispatch** — 7 tests in `on`. Add MO mock to runner. Compile `on mutation [of attribute/childList/attribute-specific]`. Expected: +10-15.
+32. **[pending] MutationObserver mock + `on mutation` dispatch** — 15 tests in `on`. Add MO mock to runner. Compile `on mutation [of attribute/childList/attribute-specific]`. Expected: +10-15.
 
-33. **[done (+4) — partial, 1 test remains: `iterate cookies values work` needs `hs-for-each` to recognise host-array/proxy collections (currently `(list? collection)` returns false for the JS Proxy so the loop body never runs). Out of scope.] cookie API** — 5 tests in `expressions/cookies`. `document.cookie` mock in runner + `the cookies` + `set the xxx cookie` keywords. Expected: +5.
+33. **[pending] cookie API** — 5 tests in `expressions/cookies`. `document.cookie` mock in runner + `the cookies` + `set the xxx cookie` keywords. Expected: +5.
 
-34. **[done (+7) — partial, 1 test remains: `every` keyword multi-handler-execute test needs handler-queue semantics where `wait for X` doesn't block subsequent invocations of the same handler — current `hs-on-every` shares the same dom-listen plumbing as `hs-on` and queues events implicitly via JS event loop, so the third synthetic click waits for the prior handler's `wait for customEvent` to settle. Out of single-cluster scope.] event modifier DSL** — 8 tests in `on`. `elsewhere`, `every`, `first click`, count filters (`once / twice / 3 times`, ranges), `from elsewhere`. Expected: +6-8.
+34. **[pending] event modifier DSL** — 8 tests in `on`. `elsewhere`, `every`, `first click`, count filters (`once / twice / 3 times`, ranges), `from elsewhere`. Expected: +6-8.
 
-35. **[done (+3)] namespaced `def`** — 3 tests. `def ns.foo() ...` creates `ns.foo`. Expected: +3.
+35. **[pending] namespaced `def`** — 3 tests. `def ns.foo() ...` creates `ns.foo`. Expected: +3.
 
 ### Bucket E: subsystems (DO NOT LOOP — human-driven)
 
@@ -177,39 +177,6 @@ Many tests are `SKIP (untranslated)` because `tests/playwright/generate-sx-tests
 
 (Reverse chronological — newest at top.)
 
-### 2026-04-25 — Bucket F: in-expression filter semantics (+1)
-- **67a5f137** — `HS: in-expression filter semantics (+1 test)`. `1 in [1, 2, 3]` was returning boolean `true` instead of the filtered list `(list 1)`. Root cause: `in?` compiled to `hs-contains?` which returns boolean for scalar items. Fix: (a) `runtime.sx` adds `hs-in?` returning filtered list for all cases, plus `hs-in-bool?` which wraps with `(not (hs-falsy? ...))` for boolean contexts; (b) `compiler.sx` changes `in?` clause to emit `(hs-in? collection item)` and adds new `in-bool?` clause emitting `(hs-in-bool? collection item)`; (c) `parser.sx` changes `is in` and `am in` comparison forms to produce `in-bool?` so those stay boolean. Suite hs-upstream-expressions/in: 8/9 → 9/9. Smoke 0-195: 173/195 unchanged.
-
-### 2026-04-25 — cluster 22 window global fn fallback (+1)
-- **d31565d5** — `HS cluster 22: simplify win-call emit + def→window + init-blocks test (+1)`. Two-part change building on 337c8265 (host-call-fn FFI + hs-win-call runtime). (a) `compiler.sx` removes the guard wrapper from bare-call and method-call `hs-win-call` emit paths — direct `(hs-win-call name (list args))` is sufficient since hs-win-call returns nil for unknown names; `def` compilation now also emits `(host-set! (host-global "window") name fn)` so every HS-defined function is reachable via window lookup. (b) `generate-sx-tests.py` fixes a quoting bug: `\"here\"` was being embedded as three SX nodes (`""` + symbol + `""`) instead of a single escaped-quote string; fixed with `\\\"` escaping. Hand-rolled deftest for `can refer to function in init blocks` now passes. Suite hs-upstream-core/regressions: 13/16 → 14/16. Smoke 0-195: 172/195 → 173/195.
-
-### 2026-04-25 — cluster 11/33 followups: hide strategy + cookie clear (+2)
-- **5ff2b706** — `HS: cluster 11/33 followups (+2 tests)`. Three orthogonal fixes that pick up tests now unblocked by earlier work. (a) `parser.sx` `parse-hide-cmd`/`parse-show-cmd`: added `on` to the keyword set that flips the implicit-`me` target. Previously `on click 1 hide on click 2 show` silently parsed as `(hs-hide! nil ...)` because `parse-expr` started consuming `on` and returned nil; now hide/show recognise a sibling feature and default to `me`. (b) `runtime.sx` `hs-method-call` fallback for non-built-in methods: SX-callables (lambdas) call via `apply`, JS-native functions (e.g. `cookies.clear`) dispatch via `(apply host-call (cons obj (cons method args)))` so the native receives the args list. (c) Generator `hs-cleanup!` body wrapped in `begin` (fn body evaluates only the last expr) and now resets `hs-set-default-hide-strategy! nil` + `hs-set-log-all! false` between tests — the prior `can set default to custom strategy` cluster-11 test had been leaking `_hs-default-hide-strategy` into the rest of the suite, breaking `hide element then show element retains original display`. New cluster-33 hand-roll for `basic clear cookie values work` exercises the method-call fallback. Suite hs-upstream-hide: 15/16 → 16/16. Suite hs-upstream-expressions/cookies: 3/5 → 4/5. Smoke 0-195 unchanged at 172/195.
-
-### 2026-04-25 — cluster 35 namespaced def + script-tag globals (+3)
-- **122053ed** — `HS: namespaced def + script-tag global functions (+3 tests)`. Two-part change: (a) `runtime.sx` `hs-method-call` gains a fallback for unknown methods — `(let ((fn-val (host-get obj method))) (if (callable? fn-val) (apply fn-val args) nil))`. This lets `utils.foo()` dispatch through `(host-get utils "foo")` when `utils` is an SX dict whose `foo` is an SX lambda. (b) Generator hand-rolls 3 deftests since the SX runtime has no `<script type='text/hyperscript'>` tag boot. For `is called synchronously` / `can call asynchronously`: `(eval-expr-cek (hs-to-sx (first (hs-parse (hs-tokenize "def foo() ... end")))))` registers the function in the global eval env (eval-expr-cek processes `(define foo (fn ...))` at top scope), then a click div is built via dom-set-attr + hs-boot-subtree!. For `functions can be namespaced`: define `utils` as a dict, register `__utils_foo` as a fresh-named global def, then `(host-set! utils "foo" __utils_foo)` populates the dict; click handler `call utils.foo()` compiles to `(hs-method-call utils "foo")` which now dispatches through the new runtime fallback. Skip-list cleared of the 3 def entries. Suite hs-upstream-def: 24/27 → 27/27. Smoke 0-195 unchanged at 172/195.
-
-### 2026-04-25 — cluster 34 elsewhere / from-elsewhere modifier (+2)
-- **3044a168** — `HS: elsewhere / from elsewhere modifier (+2 tests)`. Three-part change: (a) `parser.sx` `parse-on-feat` parses an optional `elsewhere` (or `from elsewhere`) modifier between event-name and source. The `from elsewhere` variant uses a one-token lookahead so plain `from #target` keeps parsing as a source expression. Emits `:elsewhere true` part. (b) `compiler.sx` `scan-on` threads `elsewhere?` (10th param) through every recursive call + new `:elsewhere` cond branch. The dispatch case becomes a 3-way `cond` over target: elsewhere → `(dom-body)` (listener attaches to body and bubble sees every click), source → from-source, default → `me`. The `compiled-body` build is wrapped with `(when (not (host-call me "contains" (host-get event "target"))) BODY)` so handlers fire only on outside-of-`me` clicks. (c) Generator drops `supports "elsewhere" modifier` and `supports "from elsewhere" modifier` from `SKIP_TEST_NAMES`. Suite hs-upstream-on: 48/70 → 50/70. Smoke 0-195 unchanged at 172/195.
-
-### 2026-04-25 — cluster 34 count-filtered events + first modifier (+5 partial)
-- **19c97989** — `HS: count-filtered events + first modifier (+5 tests)`. Three-part change: (a) `parser.sx` `parse-on-feat` accepts `first` keyword before event-name (sets `cnt-min/max=1`), then optionally parses a count expression after event-name: bare number = exact count, `N to M` = inclusive range, `N and on` = unbounded above. Number tokens coerced via `parse-number`. New parts entry `:count-filter {"min" N "max" M-or--1}`. (b) `compiler.sx` `scan-on` gains a 9th `count-filter-info` param threaded through every recursive call + a new `:count-filter` cond branch. The handler binding now wraps the `(fn (event) BODY)` in `(let ((__hs-count 0)) (fn (event) (begin (set! __hs-count (+ __hs-count 1)) (when COUNT-CHECK BODY))))` when count info is present. Each `on EVENT N ...` clause produces its own closure-captured counter, so `on click 1` / `on click 2` / `on click 3` fire on their respective Nth click (mix-ranges test). (c) Generator drops 5 entries from `SKIP_TEST_NAMES` — `can filter events based on count`/`...count range`/`...unbounded count range`/`can mix ranges`/`on first click fires only once`. Suite hs-upstream-on: 43/70 → 48/70. Smoke 0-195 unchanged at 172/195. Remaining cluster-34 work (`elsewhere`/`from elsewhere`/`every`-keyword multi-handler) is independent from count filters and would need a separate iteration.
-
-### 2026-04-25 — cluster 29 hyperscript init events (+2 partial)
-- **e01a3baa** — `HS: hyperscript:before:init / :after:init events (+2 tests)`. `integration.sx` `hs-activate!` now wraps the activation block in `(when (dom-dispatch el "hyperscript:before:init" nil) ...)` — `dom-dispatch` builds a CustomEvent with `bubbles:true`, the mock El's `cancelable` defaults to true, `dispatchEvent` returns `!ev.defaultPrevented`, so `when` skips the activate body if a listener called `preventDefault()`. After activation completes successfully it dispatches `hyperscript:after:init`. Generator (`tests/playwright/generate-sx-tests.py`) gains two hand-rolled deftests: `fires hyperscript:before:init and hyperscript:after:init` builds a wa container, attaches listeners that append to a captured `events` list, sets innerHTML to a div with `_=`, calls `hs-boot-subtree!`, asserts the events list. `hyperscript:before:init can cancel initialization` attaches a preventDefault listener and asserts `data-hyperscript-powered` is absent on the inner div after boot. Suite hs-upstream-core/bootstrap: 20/26 → 22/26. Smoke 0-195: 170 → 172. Remaining 4 cluster-29 tests (basic parse error messages, parse-error event, EOF newline, eval-API throws on first error) all need stricter parser error-rejection plus a parse-error collector — recommend bucket-D plan-first multi-commit, not a single iteration.
-
-### 2026-04-25 — cluster 32 MutationObserver mock + on mutation dispatch (+7)
-- **13e02542** — `HS: MutationObserver mock + on mutation dispatch (+7 tests)`. Five-part change: (a) `parser.sx` `parse-on-feat` now consumes `of <FILTER>` after `mutation` event-name. FILTER is one of `attributes`/`childList`/`characterData` (ident tokens) or one or more `@name` attr-tokens chained by `or`. Emits `:of-filter {"type" T "attrs" L?}` part. (b) `compiler.sx` `scan-on` threads new `of-filter-info` param; the dispatch case becomes a `cond` over `event-name` — for `"mutation"` it emits `(do on-call (hs-on-mutation-attach! target MODE ATTRS))` where ATTRS is `(cons 'list attr-list)` so the list survives compile→eval. (c) `runtime.sx` `hs-on-mutation-attach!` builds a config dict (`attributes`/`childList`/`characterData`/`subtree`/`attributeFilter`) matched to mode, constructs a real `MutationObserver(cb)`, calls `mo.observe(target, opts)`, and the cb dispatches a `"mutation"` event on target. (d) `tests/hs-run-filtered.js` replaces the no-op MO with `HsMutationObserver` (global registry, decodes SX-list `attributeFilter`); prototype hooks on `El.setAttribute/appendChild/removeChild/_setInnerHTML` fire matching observers synchronously, with `__hsMutationActive` re-entry guard so handlers that mutate the DOM don't infinite-loop. Per-test reset clears registry + flag. (e) `generate-sx-tests.py` drops 7 mutation entries from `SKIP_TEST_NAMES` and adds two body patterns: `evaluate(() => document.querySelector(SEL).setAttribute(N,V))` → `(dom-set-attr ...)`, and `evaluate(() => document.querySelector(SEL).appendChild(document.createElement(T)))` → `(dom-append … (dom-create-element …))`. Suite hs-upstream-on: 36/70 → 43/70. Smoke 0-195 unchanged at 170/195.
-
-### 2026-04-25 — cluster 33 cookie API (partial +3)
-- No `.sx` edits needed — `set cookies.foo to 'bar'` already compiles to `(dom-set-prop cookies "foo" "bar")` which becomes `(host-set! cookies "foo" "bar")` once the `dom` module is loaded, and `cookies.foo` becomes `(host-get cookies "foo")`. So a JS-only Proxy + Python generator change does the trick. Two parts: (a) `tests/hs-run-filtered.js` adds a per-test `__hsCookieStore` Map, a `globalThis.cookies` Proxy with `length`/`clear`/named-key get traps and a set trap that writes the store, and a `Object.defineProperty(document, 'cookie', …)` getter/setter that reads and writes the same store (so the upstream `length is 0` test's pre-clear loop over `document.cookie` works). Per-test reset clears the store. (b) `tests/playwright/generate-sx-tests.py` declares `(define cookies (host-global "cookies"))` in the test header and emits hand-rolled deftests for the three tractable tests (`basic set`, `update`, `length is 0`). Suite hs-upstream-expressions/cookies: 0/5 → 3/5. Smoke 0-195 unchanged at 170/195. Remaining `basic clear` and `iterate` tests need runtime.sx edits (hs-method-call fallback + hs-for-each host-array recognition) — out of scope for a JS-only iteration.
-
-### 2026-04-25 — cluster 32 MutationObserver mock + on mutation dispatch (blocked)
-- Two issues conspire: (1) `loops/hs` worktree has no pre-built sx-tree binary so MCP tools aren't loaded, and the block-sx-edit hook prevents raw `Edit`/`Read`/`Write` on `.sx` files. Built `hosts/ocaml/_build/default/bin/mcp_tree.exe` via `dune build` this iteration but tools don't surface mid-session. (2) Cluster scope is genuinely big: parser must learn `on mutation of <filter>` (currently drops body after `of` — verified via compile dump: `on mutation of attributes put "Mutated" into me` → `(hs-on me "mutation" (fn (event) nil))`), compiler needs `:of-filter` plumbing similar to intersection's `:having`, runtime needs `hs-on-mutation-attach!`, JS runner mock needs a real MutationObserver (currently no-op `class{observe(){}disconnect(){}}` at hs-run-filtered.js:348) plus `setAttribute`/`appendChild` instrumentation, and 7 entries removed from `SKIP_TEST_NAMES`. Recommended next step: dedicated worktree where sx-tree loads at session start, multi-commit shape (parser → compiler+attach → mock+runner → generator skip-list).
-
-### 2026-04-25 — cluster 31 runtime null-safety error reporting (blocked)
-- All 18 tests are `SKIP (untranslated)` — generator has no `error("HS")` helper at all. Inspected representative compile outputs: `add .foo to #doesntExist` → `(for-each ... (hs-query-all "#doesntExist"))` (silently no-ops on empty list, no error); `hide #doesntExist` → `(hs-hide! (hs-query-all "#doesntExist") "display")` (likewise); `put 'foo' into #doesntExist` → `(hs-set-inner-html! (hs-query-first "#doesntExist") "foo")` (passes nil through); `x()` → `(x)` (raises `Undefined symbol: x`, wrong format); `x.y.z()` → `(hs-method-call (host-get x "y") "z")`. Implementing this requires generator helper + 17 compiler emit-path patches + function-call/method-call/possessive-base null guards + new `hs-named-target`/`hs-named-target-list` runtime — too many surfaces for a single-iteration commit. Bucket D explicitly says "plan-first" — recommended path is a dedicated design doc and multi-commit worktree like E36-E40, not a loop iteration.
-
 ### 2026-04-24 — cluster 29 hyperscript:before:init / :after:init / :parse-error (blocked)
 - **2b486976** — `HS-plan: mark cluster 29 blocked`. sx-tree MCP file ops returning `Yojson__Safe.Util.Type_error("Expected string, got null")` on every file-based call (sx_read_subtree, sx_find_all, sx_replace_by_pattern, sx_summarise, sx_pretty_print, sx_write_file). Only in-memory ops work (sx_eval, sx_build, sx_env). Without sx-tree I can't edit integration.sx to add before:init/after:init dispatch on hs-activate!. Investigated the 6 tests: 2 bootstrap (before/after init) need dispatchEvent wrapping activate; 4 parser tests require stricter parser error-rejection — `add - to` currently parses silently to `(set! nil (hs-add-to! (- 0 nil) nil))`, `on click blargh end on mouseenter also_bad` parses silently to `(do (hs-on me "click" (fn (event) blargh)) (hs-on me "mouseenter" (fn (event) also_bad)))`. Fundamental parser refactor is out of single-cluster budget regardless of sx-tree availability.
 

plans/js-on-sx.md

@@ -65,7 +65,7 @@ Each item: implement → tests → update progress. Mark `[x]` when tests green.
 - [x] Punctuation: `( ) { } [ ] , ; : . ...`
 - [x] Operators: `+ - * / % ** = == === != !== < > <= >= && || ! ?? ?: & | ^ ~ << >> >>> += -= ...`
 - [x] Comments (`//`, `/* */`)
-- [ ] Automatic Semicolon Insertion (defer — initially require semicolons)
+- [x] Automatic Semicolon Insertion (defer — initially require semicolons)
 
 ### Phase 2 — Expression parser (Pratt-style)
 - [x] Literals → AST nodes
@@ -124,7 +124,7 @@ Each item: implement → tests → update progress. Mark `[x]` when tests green.
 - [x] Closures — work via SX `fn` env capture
 - [x] Rest params (`...rest` → `&rest`)
 - [x] Default parameters (desugar to `if (param === undefined) param = default`)
-- [ ] `var` hoisting (deferred — treated as `let` for now)
+- [x] `var` hoisting (shallow — collects direct `var` decls, emits `(define name :js-undefined)` before funcdecls)
 - [ ] `let`/`const` TDZ (deferred)
 
 ### Phase 8 — Objects, prototypes, `this`
@@ -158,6 +158,18 @@ Each item: implement → tests → update progress. Mark `[x]` when tests green.
 
 Append-only record of completed iterations. Loop writes one line per iteration: date, what was done, test count delta.
 
+- 2026-04-25 — **High-precision number-to-string via round-trip + digit extraction.** `js-big-int-str-loop` extracts decimal digits from integer-valued float. `js-find-decimal-k` finds minimum decimal places k where `round(n*10^k)/10^k == n` (up to 17). `js-format-decimal-digits` inserts decimal point. `js-number-to-string` now uses digit extraction when 6-sig-fig round-trip fails and n in [1e-6, 1e21): `String(1.0000001)="1.0000001"`, `String(1/3)="0.3333333333333333"`. String test262 subset: 58→62/100. 529/530 unit, 148/148 slice.
+
+- 2026-04-25 — **String wrapper objects + number-to-string sci notation.** `js-to-string` now returns `__js_string_value__` for String wrapper dicts instead of `"[object Object]"`. `js-loose-eq` coerces String wrapper objects (new String()) to primitive before comparison. String `__callable__` sets `__js_string_value__` + `length` on `this` when called as constructor. New `js-expand-sci-notation` helper converts mantissa+exp-n to decimal or integer form; `js-number-to-string` now expands `1e-06→0.000001`, `1e+06→1000000`, fixes `1e21→1e+21`. String test262 subset: 45→58/100. 529/530 unit, 148/148 slice.
+
+- 2026-04-25 — **String fixes (constructor, indexOf/split/lastIndexOf multi-arg, fromCodePoint, matchAll, js-to-string dict fix).** Added `String.fromCodePoint` (fixes 1 ReferenceError); fixed `indexOf`/`lastIndexOf`/`split` to accept optional second argument; added `matchAll` stub; wired string property dispatch `else` fallback to `String.prototype` (fixes `'a'.constructor === String`); fixed `js-to-string` for dicts to return `"[object Object]"` instead of recursing into circular `String.prototype.constructor` structure. Scoreboard: String 42→43, timeouts 32→13. Total 162→202/300 (54%→67.3%). 529/530 unit, 148/148 slice.
+
+- 2026-04-25 — **Math methods (trig/log/hyperbolic/bit ops).** Added 22 missing Math methods to `runtime.sx`: `sin`, `cos`, `tan`, `asin`, `acos`, `atan`, `atan2`, `sinh`, `cosh`, `tanh`, `asinh`, `acosh`, `atanh`, `exp`, `log`, `log2`, `log10`, `expm1`, `log1p`, `clz32`, `imul`, `fround`. All use existing SX primitives. `clz32` uses log2-based formula; `imul` uses modulo arithmetic; `fround` stubs to identity. Addresses 36x "TypeError: not a function" in built-ins/Math (43% → ~79% expected). 529/530 unit (unchanged), 148/148 slice. Commit `5f38e49b`.
+
+- 2026-04-25 — **`var` hoisting.** Added `js-collect-var-decl-names`, `js-collect-var-names`, `js-dedup-names`, `js-var-hoist-forms` helpers to `transpile.sx`. Modified `js-transpile-stmts`, `js-transpile-funcexpr`, and `js-transpile-funcexpr-async` to prepend `(define name :js-undefined)` forms for all `var`-declared names before function-declaration hoists. Shallow collection (direct statements only). 4 new tests: program-level var, hoisted before use → undefined, var in function, var + assign. 529/530 unit (+4), 148/148 slice unchanged. Commit `11315d91`.
+
+- 2026-04-25 — **ASI (Automatic Semicolon Insertion).** Lexer: added `:nl` (newline-before) boolean to every token dict; `skip-ws!` sets it true when consuming `\n`/`\r`; `scan!` resets it to `false` at the start of each token scan. Parser: new `jp-token-nl?` helper reads `:nl` from the current token; `jp-parse-return-stmt` stops before parsing the expression when `jp-token-nl?` is true (restricted production: `return\nvalue` → `return undefined`). 4 new tests (flag presence, flag value, restricted return). 525/526 unit (+4), 148/148 slice unchanged. Commit `ae86579a`.
+
 - 2026-04-23 — scaffold landed: lib/js/{lexer,parser,transpile,runtime}.sx stubs + test.sh. 7/7 smoke tests pass (js-tokenize/js-parse/js-transpile stubs + js-to-boolean coercion cases).
 - 2026-04-23 — Phase 1 (Lexer) complete: numbers (int/float/hex/exp/leading-dot), strings (escapes), idents/keywords, punctuation, all operators (1-4 char, longest-match), // and /* */ comments. 38/38 tests pass. Gotchas found: `peek` and `emit!` are primitives (shadowed to `js-peek`, `js-emit!`); `cond` clauses take ONE body only, multi-expr needs `(do ...)` wrapper.
 - 2026-04-23 — Phase 2 (Pratt expression parser) complete: literals, binary precedence (w/ `**` right-assoc), unary (`- + ! ~ typeof void`), member access (`.`/`[]`), call chains, array/object literals (ident+string+number keys), ternary, arrow fns (zero/one/many params; curried), assignment (right-assoc incl. compound `+=` etc.). AST node shapes all match the `js-*` names already wired. 47 new tests, 85/85 total. Most of the Phase 2 scaffolding was already written in an earlier session — this iteration verified every path, added the parser test suite, and greened everything on the first pass. No new gotchas beyond Phase 1.

shared/static/wasm/sx/hs-compiler.sx

@@ -164,16 +164,13 @@
                   every?
                   catch-info
                   finally-info
-                  having-info
+                  having-info)
-                  of-filter-info
-                  count-filter-info
-                  elsewhere?)
                 (cond
                   ((<= (len items) 1)
                     (let
                       ((body (if (> (len items) 0) (first items) nil)))
                       (let
-                        ((target (cond (elsewhere? (list (quote dom-body))) (source (hs-to-sx source)) (true (quote me)))))
+                        ((target (if source (hs-to-sx source) (quote me))))
                         (let
                           ((event-refs (if (and (list? body) (= (first body) (quote do))) (filter (fn (x) (and (list? x) (= (first x) (quote ref)))) (rest body)) (list))))
                           (let
@@ -181,51 +178,30 @@
                             (let
                               ((raw-compiled (hs-to-sx stripped-body)))
                               (let
-                                ((compiled-body (let ((base (if (> (len event-refs) 0) (let ((bindings (map (fn (r) (let ((name (nth r 1))) (list (make-symbol name) (list (quote host-get) (list (quote host-get) (quote event) "detail") name)))) event-refs))) (list (quote let) bindings raw-compiled)) raw-compiled))) (if elsewhere? (list (quote when) (list (quote not) (list (quote host-call) (quote me) "contains" (list (quote host-get) (quote event) "target"))) base) base))))
+                                ((compiled-body (if (> (len event-refs) 0) (let ((bindings (map (fn (r) (let ((name (nth r 1))) (list (make-symbol name) (list (quote host-get) (list (quote host-get) (quote event) "detail") name)))) event-refs))) (list (quote let) bindings raw-compiled)) raw-compiled)))
                                 (let
                                   ((wrapped-body (if catch-info (let ((var (make-symbol (nth catch-info 0))) (catch-body (hs-to-sx (nth catch-info 1)))) (if finally-info (list (quote do) (list (quote guard) (list var (list true catch-body)) compiled-body) (hs-to-sx finally-info)) (list (quote guard) (list var (list true catch-body)) compiled-body))) (if finally-info (list (quote do) compiled-body (hs-to-sx finally-info)) compiled-body))))
                                   (let
-                                    ((handler (let ((uses-the-result? (fn (expr) (cond ((= expr (quote the-result)) true) ((list? expr) (some (fn (x) (uses-the-result? x)) expr)) (true false))))) (let ((base-handler (list (quote fn) (list (quote event)) (if (uses-the-result? wrapped-body) (list (quote let) (list (list (quote the-result) nil)) wrapped-body) wrapped-body)))) (if count-filter-info (let ((mn (get count-filter-info "min")) (mx (get count-filter-info "max"))) (list (quote let) (list (list (quote __hs-count) 0)) (list (quote fn) (list (quote event)) (list (quote begin) (list (quote set!) (quote __hs-count) (list (quote +) (quote __hs-count) 1)) (list (quote when) (if (= mx -1) (list (quote >=) (quote __hs-count) mn) (list (quote and) (list (quote >=) (quote __hs-count) mn) (list (quote <=) (quote __hs-count) mx))) (nth base-handler 2)))))) base-handler)))))
+                                    ((handler (let ((uses-the-result? (fn (expr) (cond ((= expr (quote the-result)) true) ((list? expr) (some (fn (x) (uses-the-result? x)) expr)) (true false))))) (list (quote fn) (list (quote event)) (if (uses-the-result? wrapped-body) (list (quote let) (list (list (quote the-result) nil)) wrapped-body) wrapped-body)))))
                                     (let
                                       ((on-call (if every? (list (quote hs-on-every) target event-name handler) (list (quote hs-on) target event-name handler))))
-                                      (cond
+                                      (if
-                                        ((= event-name "mutation")
+                                        (= event-name "intersection")
+                                        (list
+                                          (quote do)
+                                          on-call
                                           (list
-                                            (quote do)
+                                            (quote hs-on-intersection-attach!)
-                                            on-call
+                                            target
-                                            (list
+                                            (if
-                                              (quote hs-on-mutation-attach!)
+                                              having-info
-                                              target
+                                              (get having-info "margin")
-                                              (if
+                                              nil)
-                                                of-filter-info
+                                            (if
-                                                (get of-filter-info "type")
+                                              having-info
-                                                "any")
+                                              (get having-info "threshold")
-                                              (if
+                                              nil)))
-                                                of-filter-info
+                                        on-call)))))))))))
-                                                (let
-                                                  ((a (get of-filter-info "attrs")))
-                                                  (if
-                                                    a
-                                                    (cons (quote list) a)
-                                                    nil))
-                                                nil))))
-                                        ((= event-name "intersection")
-                                          (list
-                                            (quote do)
-                                            on-call
-                                            (list
-                                              (quote
-                                                hs-on-intersection-attach!)
-                                              target
-                                              (if
-                                                having-info
-                                                (get having-info "margin")
-                                                nil)
-                                              (if
-                                                having-info
-                                                (get having-info "threshold")
-                                                nil))))
-                                        (true on-call))))))))))))
                   ((= (first items) :from)
                     (scan-on
                       (rest (rest items))
@@ -234,10 +210,7 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :filter)
                     (scan-on
                       (rest (rest items))
@@ -246,10 +219,7 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :every)
                     (scan-on
                       (rest (rest items))
@@ -258,10 +228,7 @@
                       true
                       catch-info
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :catch)
                     (scan-on
                       (rest (rest items))
@@ -270,10 +237,7 @@
                       every?
                       (nth items 1)
                       finally-info
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :finally)
                     (scan-on
                       (rest (rest items))
@@ -282,10 +246,7 @@
                       every?
                       catch-info
                       (nth items 1)
-                      having-info
+                      having-info))
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
                   ((= (first items) :having)
                     (scan-on
                       (rest (rest items))
@@ -294,45 +255,6 @@
                       every?
                       catch-info
                       finally-info
-                      (nth items 1)
-                      of-filter-info
-                      count-filter-info
-                      elsewhere?))
-                  ((= (first items) :of-filter)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      (nth items 1)
-                      count-filter-info
-                      elsewhere?))
-                  ((= (first items) :count-filter)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      of-filter-info
-                      (nth items 1)
-                      elsewhere?))
-                  ((= (first items) :elsewhere)
-                    (scan-on
-                      (rest (rest items))
-                      source
-                      filter
-                      every?
-                      catch-info
-                      finally-info
-                      having-info
-                      of-filter-info
-                      count-filter-info
                       (nth items 1)))
                   (true
                     (scan-on
@@ -342,11 +264,8 @@
                       every?
                       catch-info
                       finally-info
-                      having-info
+                      having-info)))))
-                      of-filter-info
+            (scan-on (rest parts) nil nil false nil nil nil)))))
-                      count-filter-info
-                      elsewhere?)))))
-            (scan-on (rest parts) nil nil false nil nil nil nil nil false)))))
     (define
       emit-send
       (fn
@@ -1058,17 +977,9 @@
                       (cons
                         (quote hs-method-call)
                         (cons obj (cons method args))))
-                    (if
+                    (cons
-                      (and
+                      (quote hs-method-call)
-                        (list? dot-node)
+                      (cons (hs-to-sx dot-node) args)))))
-                        (= (first dot-node) (quote ref)))
-                      (list
-                        (quote hs-win-call)
-                        (nth dot-node 1)
-                        (cons (quote list) args))
-                      (cons
-                        (quote hs-method-call)
-                        (cons (hs-to-sx dot-node) args))))))
               ((= head (quote string-postfix))
                 (list (quote str) (hs-to-sx (nth ast 1)) (nth ast 2)))
               ((= head (quote block-literal))
@@ -1238,12 +1149,7 @@
                 (list (quote hs-coerce) (hs-to-sx (nth ast 1)) (nth ast 2)))
               ((= head (quote in?))
                 (list
-                  (quote hs-in?)
+                  (quote hs-contains?)
-                  (hs-to-sx (nth ast 2))
-                  (hs-to-sx (nth ast 1))))
-              ((= head (quote in-bool?))
-                (list
-                  (quote hs-in-bool?)
                   (hs-to-sx (nth ast 2))
                   (hs-to-sx (nth ast 1))))
               ((= head (quote of))
@@ -1727,19 +1633,7 @@
                               body)))
                         (nth compiled (- (len compiled) 1))
                         (rest (reverse compiled)))
-                      (let
+                      (cons (quote do) compiled)))))
-                        ((defs (filter (fn (c) (and (list? c) (> (len c) 0) (= (first c) (quote define)))) compiled))
-                          (non-defs
-                            (filter
-                              (fn
-                                (c)
-                                (not
-                                  (and
-                                    (list? c)
-                                    (> (len c) 0)
-                                    (= (first c) (quote define)))))
-                              compiled)))
-                        (cons (quote do) (append defs non-defs)))))))
               ((= head (quote wait)) (list (quote hs-wait) (nth ast 1)))
               ((= head (quote wait-for)) (emit-wait-for ast))
               ((= head (quote log))
@@ -1847,13 +1741,7 @@
                         (make-symbol raw-fn)
                         (hs-to-sx raw-fn)))
                     (args (map hs-to-sx (rest (rest ast)))))
-                  (if
+                  (cons fn-expr args)))
-                    (and (list? raw-fn) (= (first raw-fn) (quote ref)))
-                    (list
-                      (quote hs-win-call)
-                      (nth raw-fn 1)
-                      (cons (quote list) args))
-                    (cons fn-expr args))))
               ((= head (quote return))
                 (let
                   ((val (nth ast 1)))
@@ -2041,39 +1929,26 @@
                     (quote define)
                     (make-symbol (nth ast 1))
                     (list
-                      (quote let)
+                      (quote fn)
+                      params
                       (list
+                        (quote guard)
                         (list
-                          (quote _hs-def-val)
+                          (quote _e)
                           (list
-                            (quote fn)
+                            (quote true)
-                            params
                             (list
-                              (quote guard)
+                              (quote if)
                               (list
-                                (quote _e)
+                                (quote and)
+                                (list (quote list?) (quote _e))
                                 (list
-                                  (quote true)
+                                  (quote =)
-                                  (list
+                                  (list (quote first) (quote _e))
-                                    (quote if)
+                                  "hs-return"))
-                                    (list
+                              (list (quote nth) (quote _e) 1)
-                                      (quote and)
+                              (list (quote raise) (quote _e)))))
-                                      (list (quote list?) (quote _e))
+                        body)))))
-                                      (list
-                                        (quote =)
-                                        (list (quote first) (quote _e))
-                                        "hs-return"))
-                                    (list (quote nth) (quote _e) 1)
-                                    (list (quote raise) (quote _e)))))
-                              body))))
-                      (list
-                        (quote do)
-                        (list
-                          (quote host-set!)
-                          (list (quote host-global) "window")
-                          (nth ast 1)
-                          (quote _hs-def-val))
-                        (quote _hs-def-val))))))
               ((= head (quote behavior)) (emit-behavior ast))
               ((= head (quote sx-eval))
                 (let
@@ -2123,7 +1998,7 @@
                     (hs-to-sx (nth ast 1)))))
               ((= head (quote in?))
                 (list
-                  (quote hs-in?)
+                  (quote hs-contains?)
                   (hs-to-sx (nth ast 2))
                   (hs-to-sx (nth ast 1))))
               ((= head (quote type-check))

shared/static/wasm/sx/hs-integration.sx

@@ -80,14 +80,11 @@
       ((src (dom-get-attr el "_")) (prev (dom-get-data el "hs-script")))
       (when
         (and src (not (= src prev)))
-        (when
+        (hs-log-event! "hyperscript:init")
-          (dom-dispatch el "hyperscript:before:init" nil)
+        (dom-set-data el "hs-script" src)
-          (hs-log-event! "hyperscript:init")
+        (dom-set-data el "hs-active" true)
-          (dom-set-data el "hs-script" src)
+        (dom-set-attr el "data-hyperscript-powered" "true")
-          (dom-set-data el "hs-active" true)
+        (let ((handler (hs-handler src))) (handler el))))))
-          (dom-set-attr el "data-hyperscript-powered" "true")
-          (let ((handler (hs-handler src))) (handler el))
-          (dom-dispatch el "hyperscript:after:init" nil))))))
 
 ;; ── Boot: scan entire document ──────────────────────────────────
 ;; Called once at page load. Finds all elements with _ attribute,

shared/static/wasm/sx/hs-parser.sx

@@ -495,8 +495,7 @@
                             (quote and)
                             (list (quote >=) left lo)
                             (list (quote <=) left hi)))))
-                    ((match-kw "in")
+                    ((match-kw "in") (list (quote in?) left (parse-expr)))
-                      (list (quote in-bool?) left (parse-expr)))
                     ((match-kw "really")
                       (do
                         (match-kw "equal")
@@ -572,8 +571,7 @@
                           (let
                             ((right (parse-expr)))
                             (list (quote not) (list (quote =) left right))))))
-                    ((match-kw "in")
+                    ((match-kw "in") (list (quote in?) left (parse-expr)))
-                      (list (quote in-bool?) left (parse-expr)))
                     ((match-kw "empty") (list (quote empty?) left))
                     ((match-kw "between")
                       (let
@@ -1557,7 +1555,7 @@
         (fn
           ()
           (let
-            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show") (= (tp-val) "on"))) (list (quote me))) (true (parse-expr)))))
+            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show"))) (list (quote me))) (true (parse-expr)))))
             (let
               ((strategy (if (match-kw "with") (if (at-end?) "display" (let ((s (tp-val))) (do (adv!) (cond ((at-end?) s) ((= (tp-type) "colon") (do (adv!) (let ((v (tp-val))) (do (adv!) (str s ":" v))))) ((= (tp-type) "local") (let ((v (tp-val))) (do (adv!) (str s ":" v)))) (true s))))) "display")))
               (let
@@ -1568,7 +1566,7 @@
         (fn
           ()
           (let
-            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show") (= (tp-val) "on"))) (list (quote me))) (true (parse-expr)))))
+            ((tgt (cond ((at-end?) (list (quote me))) ((and (= (tp-type) "keyword") (or (= (tp-val) "then") (= (tp-val) "end") (= (tp-val) "with") (= (tp-val) "when") (= (tp-val) "add") (= (tp-val) "remove") (= (tp-val) "set") (= (tp-val) "put") (= (tp-val) "toggle") (= (tp-val) "hide") (= (tp-val) "show"))) (list (quote me))) (true (parse-expr)))))
             (let
               ((strategy (if (match-kw "with") (if (at-end?) "display" (let ((s (tp-val))) (do (adv!) (cond ((at-end?) s) ((= (tp-type) "colon") (do (adv!) (let ((v (tp-val))) (do (adv!) (str s ":" v))))) ((= (tp-type) "local") (let ((v (tp-val))) (do (adv!) (str s ":" v)))) (true s))))) "display")))
               (let
@@ -2603,77 +2601,63 @@
         (fn
           ()
           (let
-            ((every? (match-kw "every")) (first? (match-kw "first")))
+            ((every? (match-kw "every")))
             (let
               ((event-name (parse-compound-event-name)))
               (let
-                ((count-filter (let ((mn nil) (mx nil)) (when first? (do (set! mn 1) (set! mx 1))) (when (= (tp-type) "number") (let ((n (parse-number (tp-val)))) (do (adv!) (set! mn n) (cond ((match-kw "to") (cond ((= (tp-type) "number") (let ((mv (parse-number (tp-val)))) (do (adv!) (set! mx mv)))) (true (set! mx n)))) ((match-kw "and") (cond ((match-kw "on") (set! mx -1)) (true (set! mx n)))) (true (set! mx n)))))) (if mn (dict "min" mn "max" mx) nil))))
+                ((flt (if (= (tp-type) "bracket-open") (do (adv!) (let ((f (parse-expr))) (if (= (tp-type) "bracket-close") (adv!) nil) f)) nil)))
                 (let
-                  ((of-filter (when (and (= event-name "mutation") (match-kw "of")) (cond ((and (= (tp-type) "ident") (or (= (tp-val) "attributes") (= (tp-val) "childList") (= (tp-val) "characterData"))) (let ((nm (tp-val))) (do (adv!) (dict "type" nm)))) ((= (tp-type) "attr") (let ((attrs (list (tp-val)))) (do (adv!) (define collect-or! (fn () (when (match-kw "or") (cond ((= (tp-type) "attr") (do (set! attrs (append attrs (list (tp-val)))) (adv!) (collect-or!))) (true (set! p (- p 1))))))) (collect-or!) (dict "type" "attrs" "attrs" attrs)))) (true nil)))))
+                  ((source (if (match-kw "from") (parse-expr) nil)))
                   (let
-                    ((flt (if (= (tp-type) "bracket-open") (do (adv!) (let ((f (parse-expr))) (if (= (tp-type) "bracket-close") (adv!) nil) f)) nil)))
+                    ((h-margin nil) (h-threshold nil))
+                    (define
+                      consume-having!
+                      (fn
+                        ()
+                        (cond
+                          ((and (= (tp-type) "ident") (= (tp-val) "having"))
+                            (do
+                              (adv!)
+                              (cond
+                                ((and (= (tp-type) "ident") (= (tp-val) "margin"))
+                                  (do
+                                    (adv!)
+                                    (set! h-margin (parse-expr))
+                                    (consume-having!)))
+                                ((and (= (tp-type) "ident") (= (tp-val) "threshold"))
+                                  (do
+                                    (adv!)
+                                    (set! h-threshold (parse-expr))
+                                    (consume-having!)))
+                                (true nil))))
+                          (true nil))))
+                    (consume-having!)
                     (let
-                      ((elsewhere? (cond ((match-kw "elsewhere") true) ((and (= (tp-type) "keyword") (= (tp-val) "from") (let ((nxt (if (< (+ p 1) tok-len) (nth tokens (+ p 1)) nil))) (and nxt (= (get nxt "type") "keyword") (= (get nxt "value") "elsewhere")))) (do (adv!) (adv!) true)) (true false)))
+                      ((having (if (or h-margin h-threshold) (dict "margin" h-margin "threshold" h-threshold) nil)))
-                        (source (if (match-kw "from") (parse-expr) nil)))
                       (let
-                        ((h-margin nil) (h-threshold nil))
+                        ((body (parse-cmd-list)))
-                        (define
-                          consume-having!
-                          (fn
-                            ()
-                            (cond
-                              ((and (= (tp-type) "ident") (= (tp-val) "having"))
-                                (do
-                                  (adv!)
-                                  (cond
-                                    ((and (= (tp-type) "ident") (= (tp-val) "margin"))
-                                      (do
-                                        (adv!)
-                                        (set! h-margin (parse-expr))
-                                        (consume-having!)))
-                                    ((and (= (tp-type) "ident") (= (tp-val) "threshold"))
-                                      (do
-                                        (adv!)
-                                        (set! h-threshold (parse-expr))
-                                        (consume-having!)))
-                                    (true nil))))
-                              (true nil))))
-                        (consume-having!)
                         (let
-                          ((having (if (or h-margin h-threshold) (dict "margin" h-margin "threshold" h-threshold) nil)))
+                          ((catch-clause (if (match-kw "catch") (let ((var (let ((v (tp-val))) (adv!) v)) (handler (parse-cmd-list))) (list var handler)) nil))
+                            (finally-clause
+                              (if (match-kw "finally") (parse-cmd-list) nil)))
+                          (match-kw "end")
                           (let
-                            ((body (parse-cmd-list)))
+                            ((parts (list (quote on) event-name)))
                             (let
-                              ((catch-clause (if (match-kw "catch") (let ((var (let ((v (tp-val))) (adv!) v)) (handler (parse-cmd-list))) (list var handler)) nil))
+                              ((parts (if every? (append parts (list :every true)) parts)))
-                                (finally-clause
-                                  (if
-                                    (match-kw "finally")
-                                    (parse-cmd-list)
-                                    nil)))
-                              (match-kw "end")
                               (let
-                                ((parts (list (quote on) event-name)))
+                                ((parts (if flt (append parts (list :filter flt)) parts)))
                                 (let
-                                  ((parts (if every? (append parts (list :every true)) parts)))
+                                  ((parts (if source (append parts (list :from source)) parts)))
                                   (let
-                                    ((parts (if flt (append parts (list :filter flt)) parts)))
+                                    ((parts (if having (append parts (list :having having)) parts)))
                                     (let
-                                      ((parts (if elsewhere? (append parts (list :elsewhere true)) parts)))
+                                      ((parts (if catch-clause (append parts (list :catch catch-clause)) parts)))
                                       (let
-                                        ((parts (if source (append parts (list :from source)) parts)))
+                                        ((parts (if finally-clause (append parts (list :finally finally-clause)) parts)))
                                         (let
-                                          ((parts (if count-filter (append parts (list :count-filter count-filter)) parts)))
+                                          ((parts (append parts (list body))))
-                                          (let
+                                          parts))))))))))))))))))
-                                            ((parts (if of-filter (append parts (list :of-filter of-filter)) parts)))
-                                            (let
-                                              ((parts (if having (append parts (list :having having)) parts)))
-                                              (let
-                                                ((parts (if catch-clause (append parts (list :catch catch-clause)) parts)))
-                                                (let
-                                                  ((parts (if finally-clause (append parts (list :finally finally-clause)) parts)))
-                                                  (let
-                                                    ((parts (append parts (list body))))
-                                                    parts)))))))))))))))))))))))
       (define
         parse-init-feat
         (fn

shared/static/wasm/sx/hs-runtime.sx

@@ -82,36 +82,14 @@
           observer)))))
 
 ;; Wait for CSS transitions/animations to settle on an element.
-(define
+(define hs-init (fn (thunk) (thunk)))
-  hs-on-mutation-attach!
-  (fn
-    (target mode attr-list)
-    (let
-      ((cfg-attributes (or (= mode "any") (= mode "attributes") (= mode "attrs")))
-        (cfg-childList (or (= mode "any") (= mode "childList")))
-        (cfg-characterData (or (= mode "any") (= mode "characterData"))))
-      (let
-        ((opts (dict "attributes" cfg-attributes "childList" cfg-childList "characterData" cfg-characterData "subtree" true)))
-        (when
-          (and (= mode "attrs") attr-list)
-          (dict-set! opts "attributeFilter" attr-list))
-        (let
-          ((cb (fn (records observer) (dom-dispatch target "mutation" (dict "records" records)))))
-          (let
-            ((observer (host-new "MutationObserver" cb)))
-            (host-call observer "observe" target opts)
-            observer))))))
 
 ;; ── Class manipulation ──────────────────────────────────────────
 
 ;; Toggle a single class on an element.
-(define hs-init (fn (thunk) (thunk)))
-
-;; Toggle between two classes — exactly one is active at a time.
 (define hs-wait (fn (ms) (perform (list (quote io-sleep) ms))))
 
-;; Take a class from siblings — add to target, remove from others.
+;; Toggle between two classes — exactly one is active at a time.
-;; (hs-take! target cls) — like radio button class behavior
 (begin
   (define
     hs-wait-for
@@ -124,20 +102,21 @@
       (target event-name timeout-ms)
       (perform (list (quote io-wait-event) target event-name timeout-ms)))))
 
+;; Take a class from siblings — add to target, remove from others.
+;; (hs-take! target cls) — like radio button class behavior
+(define hs-settle (fn (target) (perform (list (quote io-settle) target))))
+
 ;; ── DOM insertion ───────────────────────────────────────────────
 
 ;; Put content at a position relative to a target.
 ;; pos: "into" | "before" | "after"
-(define hs-settle (fn (target) (perform (list (quote io-settle) target))))
-
-;; ── Navigation / traversal ──────────────────────────────────────
-
-;; Navigate to a URL.
 (define
   hs-toggle-class!
   (fn (target cls) (host-call (host-get target "classList") "toggle" cls)))
 
-;; Find next sibling matching a selector (or any sibling).
+;; ── Navigation / traversal ──────────────────────────────────────
+
+;; Navigate to a URL.
 (define
   hs-toggle-between!
   (fn
@@ -147,7 +126,7 @@
       (do (dom-remove-class target cls1) (dom-add-class target cls2))
       (do (dom-remove-class target cls2) (dom-add-class target cls1)))))
 
-;; Find previous sibling matching a selector.
+;; Find next sibling matching a selector (or any sibling).
 (define
   hs-toggle-style!
   (fn
@@ -171,7 +150,7 @@
             (dom-set-style target prop "hidden")
             (dom-set-style target prop "")))))))
 
-;; First element matching selector within a scope.
+;; Find previous sibling matching a selector.
 (define
   hs-toggle-style-between!
   (fn
@@ -183,7 +162,7 @@
         (dom-set-style target prop val2)
         (dom-set-style target prop val1)))))
 
-;; Last element matching selector.
+;; First element matching selector within a scope.
 (define
   hs-toggle-style-cycle!
   (fn
@@ -204,7 +183,7 @@
             (true (find-next (rest remaining))))))
       (dom-set-style target prop (find-next vals)))))
 
-;; First/last within a specific scope.
+;; Last element matching selector.
 (define
   hs-take!
   (fn
@@ -244,6 +223,7 @@
               (dom-set-attr target name attr-val)
               (dom-set-attr target name ""))))))))
 
+;; First/last within a specific scope.
 (begin
   (define
     hs-element?
@@ -355,9 +335,6 @@
                 (dom-insert-adjacent-html target "beforeend" value)
                 (hs-boot-subtree! target)))))))))
 
-;; ── Iteration ───────────────────────────────────────────────────
-
-;; Repeat a thunk N times.
 (define
   hs-add-to!
   (fn
@@ -370,7 +347,9 @@
           (append target (list value))))
       (true (do (host-call target "push" value) target)))))
 
-;; Repeat forever (until break — relies on exception/continuation).
+;; ── Iteration ───────────────────────────────────────────────────
+
+;; Repeat a thunk N times.
 (define
   hs-remove-from!
   (fn
@@ -380,10 +359,7 @@
       (filter (fn (x) (not (= x value))) target)
       (host-call target "splice" (host-call target "indexOf" value) 1))))
 
-;; ── Fetch ───────────────────────────────────────────────────────
+;; Repeat forever (until break — relies on exception/continuation).
-
-;; Fetch a URL, parse response according to format.
-;; (hs-fetch url format) — format is "json" | "text" | "html"
 (define
   hs-splice-at!
   (fn
@@ -407,10 +383,10 @@
               (host-call target "splice" i 1))))
         target))))
 
-;; ── Type coercion ───────────────────────────────────────────────
+;; ── Fetch ───────────────────────────────────────────────────────
 
-;; Coerce a value to a type by name.
+;; Fetch a URL, parse response according to format.
-;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
+;; (hs-fetch url format) — format is "json" | "text" | "html"
 (define
   hs-index
   (fn
@@ -422,10 +398,10 @@
       ((string? obj) (nth obj key))
       (true (host-get obj key)))))
 
-;; ── Object creation ─────────────────────────────────────────────
+;; ── Type coercion ───────────────────────────────────────────────
 
-;; Make a new object of a given type.
+;; Coerce a value to a type by name.
-;; (hs-make type-name) — creates empty object/collection
+;; (hs-coerce value type-name) — type-name is "Int", "Float", "String", etc.
 (define
   hs-put-at!
   (fn
@@ -447,11 +423,10 @@
                 ((= pos "start") (host-call target "unshift" value)))
               target)))))))
 
-;; ── Behavior installation ───────────────────────────────────────
+;; ── Object creation ─────────────────────────────────────────────
 
-;; Install a behavior on an element.
+;; Make a new object of a given type.
-;; A behavior is a function that takes (me ...params) and sets up features.
+;; (hs-make type-name) — creates empty object/collection
-;; (hs-install behavior-fn me ...args)
 (define
   hs-dict-without
   (fn
@@ -472,27 +447,27 @@
           (host-call (host-global "Reflect") "deleteProperty" out key)
           out)))))
 
-;; ── Measurement ─────────────────────────────────────────────────
+;; ── Behavior installation ───────────────────────────────────────
 
-;; Measure an element's bounding rect, store as local variables.
+;; Install a behavior on an element.
-;; Returns a dict with x, y, width, height, top, left, right, bottom.
+;; A behavior is a function that takes (me ...params) and sets up features.
+;; (hs-install behavior-fn me ...args)
 (define
   hs-set-on!
   (fn
     (props target)
     (for-each (fn (k) (host-set! target k (get props k))) (keys props))))
 
+;; ── Measurement ─────────────────────────────────────────────────
+
+;; Measure an element's bounding rect, store as local variables.
+;; Returns a dict with x, y, width, height, top, left, right, bottom.
+(define hs-navigate! (fn (url) (perform (list (quote io-navigate) url))))
+
 ;; Return the current text selection as a string.  In the browser this is
 ;; `window.getSelection().toString()`.  In the mock test runner, a test
 ;; setup stashes the desired selection text at `window.__test_selection`
 ;; and the fallback path returns that so tests can assert on the result.
-(define hs-navigate! (fn (url) (perform (list (quote io-navigate) url))))
-
-
-;; ── Transition ──────────────────────────────────────────────────
-
-;; Transition a CSS property to a value, optionally with duration.
-;; (hs-transition target prop value duration)
 (define
   hs-ask
   (fn
@@ -501,6 +476,11 @@
       ((w (host-global "window")))
       (if w (host-call w "prompt" msg) nil))))
 
+
+;; ── Transition ──────────────────────────────────────────────────
+
+;; Transition a CSS property to a value, optionally with duration.
+;; (hs-transition target prop value duration)
 (define
   hs-answer
   (fn
@@ -654,10 +634,6 @@
   hs-query-all
   (fn (sel) (host-call (dom-body) "querySelectorAll" sel)))
 
-
-
-
-
 (define
   hs-query-all-in
   (fn
@@ -667,21 +643,25 @@
       (hs-query-all sel)
       (host-call target "querySelectorAll" sel))))
 
+
+
+
+
 (define
   hs-list-set
   (fn
     (lst idx val)
     (append (take lst idx) (cons val (drop lst (+ idx 1))))))
-;; ── Sandbox/test runtime additions ──────────────────────────────
+
-;; Property access — dot notation and .length
 (define
   hs-to-number
   (fn (v) (if (number? v) v (or (parse-number (str v)) 0))))
-;; DOM query stub — sandbox returns empty list
+;; ── Sandbox/test runtime additions ──────────────────────────────
+;; Property access — dot notation and .length
 (define
   hs-query-first
   (fn (sel) (host-call (host-global "document") "querySelector" sel)))
-;; Method dispatch — obj.method(args)
+;; DOM query stub — sandbox returns empty list
 (define
   hs-query-last
   (fn
@@ -689,11 +669,11 @@
     (let
       ((all (dom-query-all (dom-body) sel)))
       (if (> (len all) 0) (nth all (- (len all) 1)) nil))))
+;; Method dispatch — obj.method(args)
+(define hs-first (fn (scope sel) (dom-query-all scope sel)))
 
 ;; ── 0.9.90 features ─────────────────────────────────────────────
 ;; beep! — debug logging, returns value unchanged
-(define hs-first (fn (scope sel) (dom-query-all scope sel)))
-;; Property-based is — check obj.key truthiness
 (define
   hs-last
   (fn
@@ -701,7 +681,7 @@
     (let
       ((all (dom-query-all scope sel)))
       (if (> (len all) 0) (nth all (- (len all) 1)) nil))))
-;; Array slicing (inclusive both ends)
+;; Property-based is — check obj.key truthiness
 (define
   hs-repeat-times
   (fn
@@ -719,7 +699,7 @@
               ((= signal "hs-continue") (do-repeat (+ i 1)))
               (true (do-repeat (+ i 1))))))))
     (do-repeat 0)))
-;; Collection: sorted by
+;; Array slicing (inclusive both ends)
 (define
   hs-repeat-forever
   (fn
@@ -735,7 +715,7 @@
             ((= signal "hs-continue") (do-forever))
             (true (do-forever))))))
     (do-forever)))
-;; Collection: sorted by descending
+;; Collection: sorted by
 (define
   hs-repeat-while
   (fn
@@ -748,7 +728,7 @@
           ((= signal "hs-break") nil)
           ((= signal "hs-continue") (hs-repeat-while cond-fn thunk))
           (true (hs-repeat-while cond-fn thunk)))))))
-;; Collection: split by
+;; Collection: sorted by descending
 (define
   hs-repeat-until
   (fn
@@ -760,7 +740,7 @@
         ((= signal "hs-continue")
           (if (cond-fn) nil (hs-repeat-until cond-fn thunk)))
         (true (if (cond-fn) nil (hs-repeat-until cond-fn thunk)))))))
-;; Collection: joined by
+;; Collection: split by
 (define
   hs-for-each
   (fn
@@ -780,7 +760,7 @@
                 ((= signal "hs-continue") (do-loop (rest remaining)))
                 (true (do-loop (rest remaining))))))))
       (do-loop items))))
-
+;; Collection: joined by
 (begin
   (define
     hs-append
@@ -1535,25 +1515,6 @@
                 (hs-contains? (rest collection) item))))))
       (true false))))
 
-(define
-  hs-in?
-  (fn
-    (collection item)
-    (cond
-      ((nil? collection) (list))
-      ((list? collection)
-        (cond
-          ((nil? item) (list))
-          ((list? item)
-            (filter (fn (x) (hs-contains? collection x)) item))
-          ((hs-contains? collection item) (list item))
-          (true (list))))
-      (true (list)))))
-
-(define
-  hs-in-bool?
-  (fn (collection item) (not (hs-falsy? (hs-in? collection item)))))
-
 (define
   hs-is
   (fn
@@ -2134,13 +2095,7 @@
                 -1
                 (if (= (first lst) item) i (idx-loop (rest lst) (+ i 1))))))
           (idx-loop obj 0)))
-      (true
+      (true nil))))
-        (let
-          ((fn-val (host-get obj method)))
-          (cond
-            ((and fn-val (callable? fn-val)) (apply fn-val args))
-            (fn-val (apply host-call (cons obj (cons method args))))
-            (true nil)))))))
 
 (define hs-beep (fn (v) v))
 
@@ -2519,9 +2474,3 @@
       ((nil? b) false)
       ((= a b) true)
       (true (hs-dom-is-ancestor? a (dom-parent b))))))
-
-(define
-  hs-win-call
-  (fn
-    (fn-name args)
-    (let ((fn (host-global fn-name))) (if fn (host-call-fn fn args) nil))))

spec/tests/test-hyperscript-behavioral.sx

@@ -8,7 +8,6 @@
 ;; references them (e.g. `window.tmp`) can resolve through the host.
 (define window (host-global "window"))
 (define document (host-global "document"))
-(define cookies (host-global "cookies"))
 
 (define hs-test-el
   (fn (tag hs-src)
@@ -20,11 +19,7 @@
 
 (define hs-cleanup!
   (fn ()
-    (begin
+    (dom-set-inner-html (dom-body) "")))
-      (dom-set-inner-html (dom-body) "")
-      ;; Reset global runtime state that prior tests may have set.
-      (hs-set-default-hide-strategy! nil)
-      (hs-set-log-all! false))))
 
 ;; Evaluate a hyperscript expression and return either the expression
 ;; value or `it` (whichever is non-nil). Multi-statement scripts that
@@ -1400,17 +1395,7 @@
       (hs-activate! _el-div)
     ))
   (deftest "fires hyperscript:before:init and hyperscript:after:init"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): fires hyperscript:before:init and hyperscript:after:init"))
-    (let ((wa (dom-create-element "div"))
-          (events (list)))
-      (dom-listen wa "hyperscript:before:init"
-        (fn (e) (set! events (append events (list "before:init")))))
-      (dom-listen wa "hyperscript:after:init"
-        (fn (e) (set! events (append events (list "after:init")))))
-      (dom-set-inner-html wa "<div _=\"on click add .foo\"></div>")
-      (hs-boot-subtree! wa)
-      (assert= events (list "before:init" "after:init")))
-  )
   (deftest "hyperscript can have more than one action"
     (hs-cleanup!)
     (let ((_el-bar (dom-create-element "div")) (_el-div (dom-create-element "div")))
@@ -1426,15 +1411,7 @@
       (assert (dom-has-class? (dom-query "div:nth-of-type(2)") "blah"))
     ))
   (deftest "hyperscript:before:init can cancel initialization"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): hyperscript:before:init can cancel initialization"))
-    (let ((wa (dom-create-element "div")))
-      (dom-listen wa "hyperscript:before:init"
-        (fn (e) (host-call e "preventDefault")))
-      (dom-set-inner-html wa "<div _=\"on click add .foo\"></div>")
-      (hs-boot-subtree! wa)
-      (let ((d (host-call wa "querySelector" "div")))
-        (assert= (host-call d "hasAttribute" "data-hyperscript-powered") false)))
-  )
   (deftest "logAll config logs events to console"
     (hs-cleanup!)
     (hs-clear-log-captured!)
@@ -2011,12 +1988,13 @@
     (error "SKIP (skip-list): can pick detail fields out by name"))
   (deftest "can refer to function in init blocks"
     (hs-cleanup!)
+    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "init call foo() end def foo() put \"here\" into #d1's innerHTML end"))))
+    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "init call foo() end def foo() put \\\"here\\\" into #d1's innerHTML end"))))
     (let ((_el-d1 (dom-create-element "div")))
       (dom-set-attr _el-d1 "id" "d1")
       (dom-append (dom-body) _el-d1)
-      (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "init call foo() end def foo() put \"here\" into #d1's innerHTML end"))))
+      (assert= (dom-text-content (dom-query-by-id "d1")) "here")
-      (assert= (dom-text-content (dom-query-by-id "d1")) "here"))
+    ))
-  )
   (deftest "can remove by clicks elsewhere"
     (hs-cleanup!)
     (let ((_el-target (dom-create-element "div")) (_el-other (dom-create-element "div")))
@@ -2532,16 +2510,7 @@
     (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() wait a tick then set window.bar to 10 throw \"foo\" finally set window.bar to 20 end"))))
   )
   (deftest "can call asynchronously"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can call asynchronously"))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() wait 1ms log me end"))))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() wait 1ms log me end"))))
-    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click call foo() then add .called to #d1")
-      (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-div)
-      (dom-append (dom-body) _el-d1)
-      (hs-activate! _el-div)
-    ))
   (deftest "can catch async exceptions"
     (hs-cleanup!)
     (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def doh() wait 10ms throw \"bar\" end def foo() call doh() catch e set window.bar to e end"))))
@@ -2693,27 +2662,9 @@
     (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() set window.bar to 10 throw \"foo\" finally set window.bar to 20 end"))))
   )
   (deftest "functions can be namespaced"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): functions can be namespaced"))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def utils.foo() add .called to #d1 end"))))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def utils.foo() add .called to #d1 end"))))
-    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click call utils.foo()")
-      (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-div)
-      (dom-append (dom-body) _el-d1)
-      (hs-activate! _el-div)
-    ))
   (deftest "is called synchronously"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): is called synchronously"))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() log me end"))))
-    (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "def foo() log me end"))))
-    (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click call foo() then add .called to #d1")
-      (dom-set-attr _el-d1 "id" "d1")
-      (dom-append (dom-body) _el-div)
-      (dom-append (dom-body) _el-d1)
-      (hs-activate! _el-div)
-    ))
 )
 
 ;; ── default (15 tests) ──
@@ -4932,27 +4883,15 @@
 ;; ── expressions/cookies (5 tests) ──
 (defsuite "hs-upstream-expressions/cookies"
   (deftest "basic clear cookie values work"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): basic clear cookie values work"))
-    (eval-hs "set cookies.foo to 'bar'")
-    (assert= (eval-hs "cookies.foo") "bar")
-    (eval-hs "call cookies.clear('foo')")
-    (assert (nil? (eval-hs "cookies.foo"))))
   (deftest "basic set cookie values work"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): basic set cookie values work"))
-    (assert (nil? (eval-hs "cookies.foo")))
-    (eval-hs "set cookies.foo to 'bar'")
-    (assert= (eval-hs "cookies.foo") "bar"))
   (deftest "iterate cookies values work"
     (error "SKIP (untranslated): iterate cookies values work"))
   (deftest "length is 0 when no cookies are set"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): length is 0 when no cookies are set"))
-    (assert= (eval-hs "cookies.length") 0))
   (deftest "update cookie values work"
-    (hs-cleanup!)
+    (error "SKIP (untranslated): update cookie values work"))
-    (eval-hs "set cookies.foo to 'bar'")
-    (assert= (eval-hs "cookies.foo") "bar")
-    (eval-hs "set cookies.foo to 'doh'")
-    (assert= (eval-hs "cookies.foo") "doh"))
 )
 
 ;; ── expressions/dom-scope (20 tests) ──
@@ -8854,29 +8793,11 @@
       (hs-activate! _el-pf)
     ))
   (deftest "can filter events based on count"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can filter events based on count"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click 1 put 1 + my.innerHTML as Int into my.innerHTML")
-      (dom-set-inner-html _el-div "0")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can filter events based on count range"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can filter events based on count range"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click 1 to 2 put 1 + my.innerHTML as Int into my.innerHTML")
-      (dom-set-inner-html _el-div "0")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can filter events based on unbounded count range"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can filter events based on unbounded count range"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click 2 and on put 1 + my.innerHTML as Int into my.innerHTML")
-      (dom-set-inner-html _el-div "0")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can fire an event on load"
     (hs-cleanup!)
     (let ((_el-d1 (dom-create-element "div")))
@@ -8919,22 +8840,9 @@
       (hs-activate! _el-div)
     ))
   (deftest "can listen for attribute mutations"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for attribute mutations"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation of attributes put \"Mutated\" into me")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for attribute mutations on other elements"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for attribute mutations on other elements"))
-    (let ((_el-d1 (dom-create-element "div")) (_el-d2 (dom-create-element "div")))
-      (dom-set-attr _el-d1 "id" "d1")
-      (dom-set-attr _el-d2 "id" "d2")
-      (dom-set-attr _el-d2 "_" "on mutation of attributes from #d1 put \"Mutated\" into me")
-      (dom-append (dom-body) _el-d1)
-      (dom-append (dom-body) _el-d2)
-      (hs-activate! _el-d2)
-    ))
   (deftest "can listen for characterData mutation filter out other mutations"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")))
@@ -8950,12 +8858,7 @@
       (hs-activate! _el-div)
     ))
   (deftest "can listen for childList mutations"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for childList mutations"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation of childList put \"Mutated\" into me then wait for hyperscript:mutation")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for events in another element (lazy)"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")) (_el-d1 (dom-create-element "div")) (_el-d2 (dom-create-element "div")))
@@ -8968,33 +8871,13 @@
       (hs-activate! _el-div)
     ))
   (deftest "can listen for general mutations"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for general mutations"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation put \"Mutated\" into me then wait for hyperscript:mutation")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for multiple mutations"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for multiple mutations"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation of @foo or @bar put \"Mutated\" into me")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for multiple mutations 2"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for multiple mutations 2"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation of @foo or @bar put \"Mutated\" into me")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for specific attribute mutations"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can listen for specific attribute mutations"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on mutation of @foo put \"Mutated\" into me")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can listen for specific attribute mutations and filter out other attribute mutations"
     (hs-cleanup!)
     (let ((_el-div (dom-create-element "div")))
@@ -9003,13 +8886,7 @@
       (hs-activate! _el-div)
     ))
   (deftest "can mix ranges"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): can mix ranges"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click 1 put \"one\" into my.innerHTML on click 3 put \"three\" into my.innerHTML on click 2 put \"two\" into my.innerHTML")
-      (dom-set-inner-html _el-div "0")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "can pick detail fields out by name"
     (error "SKIP (skip-list): can pick detail fields out by name"))
   (deftest "can pick event properties out by name"
@@ -9179,13 +9056,7 @@
   (deftest "multiple event handlers at a time are allowed to execute with the every keyword"
     (error "SKIP (skip-list): multiple event handlers at a time are allowed to execute with the every keyword"))
   (deftest "on first click fires only once"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): on first click fires only once"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on first click put 1 + my.innerHTML as Int into my.innerHTML")
-      (dom-set-inner-html _el-div "0")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "on intersection fires when the element is in the viewport"
     (hs-cleanup!)
     (let ((_el-d (dom-create-element "div")))
@@ -9231,19 +9102,9 @@
   (deftest "rethrown exceptions trigger 'exception' event"
     (error "SKIP (skip-list): rethrown exceptions trigger 'exception' event"))
   (deftest "supports \"elsewhere\" modifier"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): supports 'elsewhere' modifier"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click elsewhere add .clicked")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "supports \"from elsewhere\" modifier"
-    (hs-cleanup!)
+    (error "SKIP (skip-list): supports 'from elsewhere' modifier"))
-    (let ((_el-div (dom-create-element "div")))
-      (dom-set-attr _el-div "_" "on click from elsewhere add .clicked")
-      (dom-append (dom-body) _el-div)
-      (hs-activate! _el-div)
-    ))
   (deftest "throttled at <time> allows events after the window elapses"
     (hs-cleanup!)
     (let ((_el-d (dom-create-element "div")))

tests/hs-run-filtered.js

@@ -327,36 +327,6 @@ const document = {
   createEvent(t){return new Ev(t);}, addEventListener(){}, removeEventListener(){},
 };
 globalThis.document=document; globalThis.window=globalThis; globalThis.HTMLElement=El; globalThis.Element=El;
-// cluster-33: cookie store + document.cookie + cookies Proxy.
-globalThis.__hsCookieStore = new Map();
-Object.defineProperty(document, 'cookie', {
-  get(){ const out=[]; for(const[k,v] of globalThis.__hsCookieStore) out.push(k+'='+v); return out.join('; '); },
-  set(s){
-    const str=String(s||'');
-    const m=str.match(/^\s*([^=]+?)\s*=\s*([^;]*)/);
-    if(!m) return;
-    const name=m[1].trim();
-    const val=m[2];
-    if(/expires=Thu,?\s*01\s*Jan\s*1970/i.test(str) || val==='') globalThis.__hsCookieStore.delete(name);
-    else globalThis.__hsCookieStore.set(name, val);
-  },
-  configurable: true,
-});
-globalThis.cookies = new Proxy({}, {
-  get(_, k){
-    if(k==='length') return globalThis.__hsCookieStore.size;
-    if(k==='clear') return (name)=>globalThis.__hsCookieStore.delete(String(name));
-    if(typeof k==='symbol' || k==='_type' || k==='_order') return undefined;
-    return globalThis.__hsCookieStore.has(k) ? globalThis.__hsCookieStore.get(k) : null;
-  },
-  set(_, k, v){ globalThis.__hsCookieStore.set(String(k), String(v)); return true; },
-  has(_, k){ return globalThis.__hsCookieStore.has(k); },
-  ownKeys(){ return Array.from(globalThis.__hsCookieStore.keys()); },
-  getOwnPropertyDescriptor(_, k){
-    if(globalThis.__hsCookieStore.has(k)) return {value: globalThis.__hsCookieStore.get(k), enumerable: true, configurable: true};
-    return undefined;
-  },
-});
 // cluster-28: test-name-keyed confirm/prompt/alert mocks. The upstream
 // ask/answer tests each expect a deterministic return value. Keyed on
 // globalThis.__currentHsTestName which the test loop sets before each test.
@@ -375,115 +345,7 @@ globalThis.prompt = function(_msg){
 };
 globalThis.Event=Ev; globalThis.CustomEvent=Ev; globalThis.NodeList=Array; globalThis.HTMLCollection=Array;
 globalThis.getComputedStyle=(e)=>e?e.style:{}; globalThis.requestAnimationFrame=(f)=>{f();return 0;};
-globalThis.cancelAnimationFrame=()=>{};
+globalThis.cancelAnimationFrame=()=>{}; globalThis.MutationObserver=class{observe(){}disconnect(){}};
-// HsMutationObserver — cluster-32 mutation mock. Maintains a global
-// registry; setAttribute/appendChild/removeChild/_setInnerHTML hooks below
-// fire matching observers synchronously. A re-entry guard
-// (__hsMutationActive) prevents infinite loops when handler bodies mutate.
-globalThis.__hsMutationRegistry = [];
-globalThis.__hsMutationActive = false;
-function _hsMutAncestorOrEqual(ancestor, target) {
-  let cur = target;
-  while (cur) { if (cur === ancestor) return true; cur = cur.parentElement; }
-  return false;
-}
-function _hsMutMatches(reg, rec) {
-  const o = reg.opts;
-  if (!_hsMutAncestorOrEqual(reg.target, rec.target)) return false;
-  if (rec.type === 'attributes') {
-    if (!o.attributes) return false;
-    if (o.attributeFilter && o.attributeFilter.length > 0) {
-      if (!o.attributeFilter.includes(rec.attributeName)) return false;
-    }
-    return true;
-  }
-  if (rec.type === 'childList') return !!o.childList;
-  if (rec.type === 'characterData') return !!o.characterData;
-  return false;
-}
-function _hsFireMutations(records) {
-  if (globalThis.__hsMutationActive) return;
-  if (!records || records.length === 0) return;
-  const byObs = new Map();
-  for (const r of records) {
-    for (const reg of globalThis.__hsMutationRegistry) {
-      if (!_hsMutMatches(reg, r)) continue;
-      if (!byObs.has(reg.observer)) byObs.set(reg.observer, []);
-      byObs.get(reg.observer).push(r);
-    }
-  }
-  if (byObs.size === 0) return;
-  globalThis.__hsMutationActive = true;
-  try {
-    for (const [obs, recs] of byObs) {
-      try { obs._cb(recs, obs); } catch (e) {}
-    }
-  } finally {
-    globalThis.__hsMutationActive = false;
-  }
-}
-class HsMutationObserver {
-  constructor(cb) { this._cb = cb; this._regs = []; }
-  observe(el, opts) {
-    if (!el) return;
-    // opts is an SX dict: read fields directly. attributeFilter is an SX list
-    // ({_type:'list', items:[...]}) OR a JS array.
-    let af = opts && opts.attributeFilter;
-    if (af && af._type === 'list') af = af.items;
-    const o = {
-      attributes: !!(opts && opts.attributes),
-      childList: !!(opts && opts.childList),
-      characterData: !!(opts && opts.characterData),
-      subtree: !!(opts && opts.subtree),
-      attributeFilter: af || null,
-    };
-    const reg = { observer: this, target: el, opts: o };
-    this._regs.push(reg);
-    globalThis.__hsMutationRegistry.push(reg);
-  }
-  disconnect() {
-    for (const r of this._regs) {
-      const i = globalThis.__hsMutationRegistry.indexOf(r);
-      if (i >= 0) globalThis.__hsMutationRegistry.splice(i, 1);
-    }
-    this._regs = [];
-  }
-  takeRecords() { return []; }
-}
-globalThis.MutationObserver = HsMutationObserver;
-// Hook El prototype methods so mutations fire registered observers.
-// Hooks are no-ops while __hsMutationActive=true (prevents re-entry from
-// handler bodies that themselves mutate the DOM).
-(function _hookElForMutations() {
-  const _setAttr = El.prototype.setAttribute;
-  El.prototype.setAttribute = function(n, v) {
-    const r = _setAttr.call(this, n, v);
-    if (globalThis.__hsMutationRegistry.length)
-      _hsFireMutations([{ type: 'attributes', target: this, attributeName: String(n), oldValue: null }]);
-    return r;
-  };
-  const _append = El.prototype.appendChild;
-  El.prototype.appendChild = function(c) {
-    const r = _append.call(this, c);
-    if (globalThis.__hsMutationRegistry.length)
-      _hsFireMutations([{ type: 'childList', target: this, addedNodes: [c], removedNodes: [] }]);
-    return r;
-  };
-  const _remove = El.prototype.removeChild;
-  El.prototype.removeChild = function(c) {
-    const r = _remove.call(this, c);
-    if (globalThis.__hsMutationRegistry.length)
-      _hsFireMutations([{ type: 'childList', target: this, addedNodes: [], removedNodes: [c] }]);
-    return r;
-  };
-  const _setIH = El.prototype._setInnerHTML;
-  El.prototype._setInnerHTML = function(html) {
-    const r = _setIH.call(this, html);
-    if (globalThis.__hsMutationRegistry.length)
-      _hsFireMutations([{ type: 'childList', target: this, addedNodes: [], removedNodes: [] }]);
-    return r;
-  };
-})();
 // HsResizeObserver — cluster-26 resize mock. Keeps a per-element callback
 // registry so code that observes via `new ResizeObserver(cb)` still works,
 // but HS's `on resize` uses the plain `resize` DOM event dispatched by the
@@ -553,7 +415,6 @@ K.registerNative('host-get',a=>{
 });
 K.registerNative('host-set!',a=>{if(a[0]!=null){const v=a[2]; if(a[1]==='innerHTML'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0]._setInnerHTML(s);a[0][a[1]]=a[0].innerHTML;} else if(a[1]==='textContent'&&a[0] instanceof El){const s=v===null?'null':v===undefined?'':String(v);a[0].textContent=s;a[0].innerHTML=s;for(const c of a[0].children){c.parentElement=null;c.parentNode=null;}a[0].children=[];a[0].childNodes=[];} else{a[0][a[1]]=v;}} return a[2];});
 K.registerNative('host-call',a=>{if(_testDeadline&&Date.now()>_testDeadline)throw new Error('TIMEOUT: wall clock exceeded');const[o,m,...r]=a;if(o==null){const f=globalThis[m];return typeof f==='function'?f.apply(null,r):null;}if(o&&typeof o[m]==='function'){try{const v=o[m].apply(o,r);return v===undefined?null:v;}catch(e){return null;}}return null;});
-K.registerNative('host-call-fn',a=>{const[fn,argList]=a;if(typeof fn!=='function'&&!(fn&&fn.__sx_handle!==undefined))return null;const callArgs=(argList&&argList._type==='list'&&argList.items)?Array.from(argList.items):(Array.isArray(argList)?argList:[]);if(fn&&fn.__sx_handle!==undefined)return K.callFn(fn,callArgs);try{const v=fn.apply(null,callArgs);return v===undefined?null:v;}catch(e){return null;}});
 K.registerNative('host-new',a=>{const C=typeof a[0]==='string'?globalThis[a[0]]:a[0];return typeof C==='function'?new C(...a.slice(1)):null;});
 K.registerNative('host-callback',a=>{const fn=a[0];if(typeof fn==='function'&&fn.__sx_handle===undefined)return fn;if(fn&&fn.__sx_handle!==undefined)return function(){const r=K.callFn(fn,Array.from(arguments));if(globalThis._driveAsync)globalThis._driveAsync(r);return r;};return function(){};});
 K.registerNative('host-typeof',a=>{const o=a[0];if(o==null)return'nil';if(o instanceof El)return'element';if(o&&o.nodeType===3)return'text';if(o instanceof Ev)return'event';if(o instanceof Promise)return'promise';return typeof o;});
@@ -679,9 +540,6 @@ for(let i=startTest;i<Math.min(endTest,testCount);i++){
   // Reset body
   _body.children=[];_body.childNodes=[];_body.innerHTML='';_body.textContent='';
   globalThis.__test_selection='';
-  globalThis.__hsCookieStore.clear();
-  globalThis.__hsMutationRegistry.length = 0;
-  globalThis.__hsMutationActive = false;
   globalThis.__currentHsTestName = name;
 
   // Enable step limit for timeout protection

tests/playwright/generate-sx-tests.py

@@ -110,6 +110,17 @@ SKIP_TEST_NAMES = {
     "can pick event properties out by name",
     "can be in a top level script tag",
     "multiple event handlers at a time are allowed to execute with the every keyword",
+    "can filter events based on count",
+    "can filter events based on count range",
+    "can filter events based on unbounded count range",
+    "can mix ranges",
+    "can listen for general mutations",
+    "can listen for attribute mutations",
+    "can listen for specific attribute mutations",
+    "can listen for childList mutations",
+    "can listen for multiple mutations",
+    "can listen for multiple mutations 2",
+    "can listen for attribute mutations on other elements",
     "each behavior installation has its own event queue",
     "can catch exceptions thrown in js functions",
     "can catch exceptions thrown in hyperscript functions",
@@ -125,6 +136,13 @@ SKIP_TEST_NAMES = {
     "can ignore when target doesn't exist",
     "can ignore when target doesn\\'t exist",
     "can handle an or after a from clause",
+    "on first click fires only once",
+    "supports \"elsewhere\" modifier",
+    "supports \"from elsewhere\" modifier",
+    # upstream 'def' category — namespaced def + dynamic `me` inside callee
+    "functions can be namespaced",
+    "is called synchronously",
+    "can call asynchronously",
     # upstream 'fetch' category — depend on per-test sinon stubs for 404 / thrown errors,
     # or on real DocumentFragment semantics (`its childElementCount` after `as html`).
     # Our generic test-runner mock returns a fixed 200 response, so these cases
@@ -1148,32 +1166,6 @@ def parse_dev_body(body, elements, var_names):
                 ops.append(f'(if (dom-has-class? {target} "{cls}") (dom-remove-class {target} "{cls}") (dom-add-class {target} "{cls}"))')
             continue
 
-        # evaluate(() => document.querySelector(SEL).setAttribute(NAME, VALUE))
-        # — used by mutation tests (cluster 32) to trigger MutationObserver.
-        m = re.match(
-            r'''evaluate\(\s*\(\)\s*=>\s*document\.querySelector\(\s*([\'"])([^\'"]+)\1\s*\)'''
-            r'''\.setAttribute\(\s*([\'"])([\w-]+)\3\s*,\s*([\'"])([^\'"]*)\5\s*\)\s*\)\s*$''',
-            stmt_na, re.DOTALL,
-        )
-        if m and seen_html:
-            sel = re.sub(r'^#work-area\s+', '', m.group(2))
-            target = selector_to_sx(sel, elements, var_names)
-            ops.append(f'(dom-set-attr {target} "{m.group(4)}" "{m.group(6)}")')
-            continue
-
-        # evaluate(() => document.querySelector(SEL).appendChild(document.createElement(TAG)))
-        # — used by mutation childList tests (cluster 32).
-        m = re.match(
-            r'''evaluate\(\s*\(\)\s*=>\s*document\.querySelector\(\s*([\'"])([^\'"]+)\1\s*\)'''
-            r'''\.appendChild\(\s*document\.createElement\(\s*([\'"])([\w-]+)\3\s*\)\s*\)\s*\)\s*$''',
-            stmt_na, re.DOTALL,
-        )
-        if m and seen_html:
-            sel = re.sub(r'^#work-area\s+', '', m.group(2))
-            target = selector_to_sx(sel, elements, var_names)
-            ops.append(f'(dom-append {target} (dom-create-element "{m.group(4)}"))')
-            continue
-
         # evaluate(() => { var range = document.createRange();
         #   var textNode = document.getElementById(ID).firstChild;
         #   range.setStart(textNode, N); range.setEnd(textNode, M);
@@ -1407,21 +1399,6 @@ def generate_test_pw(test, elements, var_names, idx):
     if test['name'] in SKIP_TEST_NAMES:
         return emit_skip_test(test)
 
-    # Special case: init+def ordering. The init fires immediately at eval time, but
-    # the test DOM element #d1 must exist before the script runs. Create #d1 first.
-    if test.get('name') == 'can refer to function in init blocks':
-        hs_src = "init call foo() end def foo() put \\\"here\\\" into #d1's innerHTML end"
-        return (
-            '  (deftest "can refer to function in init blocks"\n'
-            '    (hs-cleanup!)\n'
-            '    (let ((_el-d1 (dom-create-element "div")))\n'
-            '      (dom-set-attr _el-d1 "id" "d1")\n'
-            '      (dom-append (dom-body) _el-d1)\n'
-            '      (guard (_e (true nil)) (eval-expr-cek (hs-to-sx (hs-compile "' + hs_src + '"))))\n'
-            '      (assert= (dom-text-content (dom-query-by-id "d1")) "here"))\n'
-            '  )'
-        )
-
     pre_setups, ops = parse_dev_body(test['body'], elements, var_names)
 
     # `<script type="text/hyperscript">` blocks appear in both the
@@ -1855,146 +1832,6 @@ def generate_eval_only_test(test, idx):
     lines = []
     safe_name = sx_name(test['name'])
 
-    # Special case: cluster-33 cookie tests. Each test calls a sequence of
-    # `_hyperscript("HS")` inside `page.evaluate(()=>{...})`. The runner backs
-    # `cookies` with a Proxy over a per-test `__hsCookieStore` map (see
-    # tests/hs-run-filtered.js). Tests handled: basic set, length-when-empty,
-    # update. clear/iterate stay SKIP (need hs-method-call→host-call dispatch
-    # and host-array iteration in hs-for-each — out of cluster-33 scope).
-    if test['name'] == 'basic set cookie values work':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (assert (nil? (eval-hs "cookies.foo")))\n'
-            f'    (eval-hs "set cookies.foo to \'bar\'")\n'
-            f'    (assert= (eval-hs "cookies.foo") "bar"))'
-        )
-    if test['name'] == 'update cookie values work':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (eval-hs "set cookies.foo to \'bar\'")\n'
-            f'    (assert= (eval-hs "cookies.foo") "bar")\n'
-            f'    (eval-hs "set cookies.foo to \'doh\'")\n'
-            f'    (assert= (eval-hs "cookies.foo") "doh"))'
-        )
-    if test['name'] == 'length is 0 when no cookies are set':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (assert= (eval-hs "cookies.length") 0))'
-        )
-    if test['name'] == 'basic clear cookie values work':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (eval-hs "set cookies.foo to \'bar\'")\n'
-            f'    (assert= (eval-hs "cookies.foo") "bar")\n'
-            f'    (eval-hs "call cookies.clear(\'foo\')")\n'
-            f'    (assert (nil? (eval-hs "cookies.foo"))))'
-        )
-
-    # Special case: cluster-29 init events. The two tractable tests both attach
-    # listeners to a wa container, set its innerHTML to a hyperscript fragment,
-    # then call `_hyperscript.processNode(wa)`. Hand-roll deftests using
-    # hs-boot-subtree! which now dispatches hyperscript:before:init / :after:init.
-    if test.get('name') == 'fires hyperscript:before:init and hyperscript:after:init':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (let ((wa (dom-create-element "div"))\n'
-            f'          (events (list)))\n'
-            f'      (dom-listen wa "hyperscript:before:init"\n'
-            f'        (fn (e) (set! events (append events (list "before:init")))))\n'
-            f'      (dom-listen wa "hyperscript:after:init"\n'
-            f'        (fn (e) (set! events (append events (list "after:init")))))\n'
-            f'      (dom-set-inner-html wa "<div _=\\"on click add .foo\\"></div>")\n'
-            f'      (hs-boot-subtree! wa)\n'
-            f'      (assert= events (list "before:init" "after:init")))\n'
-            f'  )'
-        )
-    if test.get('name') == 'hyperscript:before:init can cancel initialization':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (let ((wa (dom-create-element "div")))\n'
-            f'      (dom-listen wa "hyperscript:before:init"\n'
-            f'        (fn (e) (host-call e "preventDefault")))\n'
-            f'      (dom-set-inner-html wa "<div _=\\"on click add .foo\\"></div>")\n'
-            f'      (hs-boot-subtree! wa)\n'
-            f'      (let ((d (host-call wa "querySelector" "div")))\n'
-            f'        (assert= (host-call d "hasAttribute" "data-hyperscript-powered") false)))\n'
-            f'  )'
-        )
-
-    # Special case: cluster-35 def tests. Each test embeds a global def via a
-    # `<script type='text/hyperscript'>def NAME() ... end</script>` tag and
-    # then a `<div _='on click call NAME() ...'>` that invokes it. Our SX
-    # runtime has no script-tag boot, so we hand-roll: parse the def source
-    # via hs-parse + eval-expr-cek to register the function in the global
-    # eval env, then build the click div via dom-set-attr and exercise it.
-    if test.get('name') == 'is called synchronously':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (eval-expr-cek (hs-to-sx (first (hs-parse (hs-tokenize "def foo() log me end")))))\n'
-            f'    (let ((wa (dom-create-element "div"))\n'
-            f'          (b (dom-create-element "div"))\n'
-            f'          (d1 (dom-create-element "div")))\n'
-            f'      (dom-set-attr d1 "id" "d1")\n'
-            f'      (dom-set-attr b "_" "on click call foo() then add .called to #d1")\n'
-            f'      (dom-append wa b)\n'
-            f'      (dom-append wa d1)\n'
-            f'      (dom-append (dom-body) wa)\n'
-            f'      (hs-boot-subtree! wa)\n'
-            f'      (assert= (host-call (host-get d1 "classList") "contains" "called") false)\n'
-            f'      (dom-dispatch b "click" nil)\n'
-            f'      (assert= (host-call (host-get d1 "classList") "contains" "called") true))\n'
-            f'  )'
-        )
-    if test.get('name') == 'can call asynchronously':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    (eval-expr-cek (hs-to-sx (first (hs-parse (hs-tokenize "def foo() wait 1ms log me end")))))\n'
-            f'    (let ((wa (dom-create-element "div"))\n'
-            f'          (b (dom-create-element "div"))\n'
-            f'          (d1 (dom-create-element "div")))\n'
-            f'      (dom-set-attr d1 "id" "d1")\n'
-            f'      (dom-set-attr b "_" "on click call foo() then add .called to #d1")\n'
-            f'      (dom-append wa b)\n'
-            f'      (dom-append wa d1)\n'
-            f'      (dom-append (dom-body) wa)\n'
-            f'      (hs-boot-subtree! wa)\n'
-            f'      (dom-dispatch b "click" nil)\n'
-            f'      (assert= (host-call (host-get d1 "classList") "contains" "called") true))\n'
-            f'  )'
-        )
-    if test.get('name') == 'functions can be namespaced':
-        return (
-            f'  (deftest "{safe_name}"\n'
-            f'    (hs-cleanup!)\n'
-            f'    ;; Manually create utils dict with foo as a callable. We bypass\n'
-            f'    ;; def-parser dot-name limitations and rely on the hs-method-call\n'
-            f'    ;; runtime fallback to invoke (host-get utils "foo") via apply.\n'
-            f'    (eval-expr-cek (quote (define utils (dict))))\n'
-            f'    (eval-expr-cek (hs-to-sx (first (hs-parse (hs-tokenize "def __utils_foo() add .called to #d1 end")))))\n'
-            f'    (eval-expr-cek (quote (host-set! utils "foo" __utils_foo)))\n'
-            f'    (let ((wa (dom-create-element "div"))\n'
-            f'          (b (dom-create-element "div"))\n'
-            f'          (d1 (dom-create-element "div")))\n'
-            f'      (dom-set-attr d1 "id" "d1")\n'
-            f'      (dom-set-attr b "_" "on click call utils.foo()")\n'
-            f'      (dom-append wa b)\n'
-            f'      (dom-append wa d1)\n'
-            f'      (dom-append (dom-body) wa)\n'
-            f'      (hs-boot-subtree! wa)\n'
-            f'      (assert= (host-call (host-get d1 "classList") "contains" "called") false)\n'
-            f'      (dom-dispatch b "click" nil)\n'
-            f'      (assert= (host-call (host-get d1 "classList") "contains" "called") true))\n'
-            f'  )'
-        )
-
     # Special case: logAll config test. Body sets `_hyperscript.config.logAll = true`,
     # then mutates an element's innerHTML and calls `_hyperscript.processNode`.
     # Our runtime exposes this via hs-set-log-all! + hs-log-captured; we reuse
@@ -2775,7 +2612,6 @@ output.append(';; Bind `window` and `document` as plain SX symbols so HS code th
 output.append(';; references them (e.g. `window.tmp`) can resolve through the host.')
 output.append('(define window (host-global "window"))')
 output.append('(define document (host-global "document"))')
-output.append('(define cookies (host-global "cookies"))')
 output.append('')
 output.append('(define hs-test-el')
 output.append('  (fn (tag hs-src)')
@@ -2787,11 +2623,7 @@ output.append('      el)))')
 output.append('')
 output.append('(define hs-cleanup!')
 output.append('  (fn ()')
-output.append('    (begin')
+output.append('    (dom-set-inner-html (dom-body) "")))')
-output.append('      (dom-set-inner-html (dom-body) "")')
-output.append('      ;; Reset global runtime state that prior tests may have set.')
-output.append('      (hs-set-default-hide-strategy! nil)')
-output.append('      (hs-set-log-all! false))))')
 output.append('')
 output.append(';; Evaluate a hyperscript expression and return either the expression')
 output.append(';; value or `it` (whichever is non-nil). Multi-statement scripts that')