Fix WASM browser: broken links (&rest bytecode) + broken reactive counter (ListRef mutation)

Two bugs fixed:

1. Links: bytecode compiler doesn't handle &rest params — treats them as
   positional, so (first rest) gets a raw string instead of a list.
   Replaced &rest with explicit optional params in all bytecode-compiled
   web SX files (dom-query, dom-add-listener, browser-push-state, etc.).
   The VM already pads missing args with Nil.

2. Reactive counter: signal-remove-sub! used (filter ...) which returns
   immutable List, but signal-add-sub! uses (append!) which only mutates
   ListRef. Subscribers silently vanished after first effect re-run.
   Fixed by adding remove! primitive that mutates ListRef in-place.

Also:
- Added evalVM API to WASM kernel (compile + run through bytecode VM)
- Added scope tracing (scope-push!/pop!/peek/context instrumentation)
- Added Playwright reactive mode for debugging island signal/DOM state
- Replaced cek-call with direct calls in core-signals.sx effect/computed
- Recompiled all 23 bytecode modules

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-03-27 14:08:49 +00:00
parent 553bbf123e
commit 8d3ab040ef
18 changed files with 42899 additions and 3236 deletions

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@@ -1,21 +1,110 @@
(define assert-signal-value :effects () (fn ((sig :as any) expected) (let ((actual (deref sig))) (assert= actual expected (str "Expected signal value " expected ", got " actual)))))
(define
assert-signal-value
:effects ()
(fn
((sig :as any) expected)
(let
((actual (deref sig)))
(assert=
actual
expected
(str "Expected signal value " expected ", got " actual)))))
(define assert-signal-has-subscribers :effects () (fn ((sig :as any)) (assert (> (len (signal-subscribers sig)) 0) "Expected signal to have subscribers")))
(define
assert-signal-has-subscribers
:effects ()
(fn
((sig :as any))
(assert
(> (len (signal-subscribers sig)) 0)
"Expected signal to have subscribers")))
(define assert-signal-no-subscribers :effects () (fn ((sig :as any)) (assert (= (len (signal-subscribers sig)) 0) "Expected signal to have no subscribers")))
(define
assert-signal-no-subscribers
:effects ()
(fn
((sig :as any))
(assert
(= (len (signal-subscribers sig)) 0)
"Expected signal to have no subscribers")))
(define assert-signal-subscriber-count :effects () (fn ((sig :as any) (n :as number)) (let ((actual (len (signal-subscribers sig)))) (assert= actual n (str "Expected " n " subscribers, got " actual)))))
(define
assert-signal-subscriber-count
:effects ()
(fn
((sig :as any) (n :as number))
(let
((actual (len (signal-subscribers sig))))
(assert= actual n (str "Expected " n " subscribers, got " actual)))))
(define simulate-signal-set! :effects (mutation) (fn ((sig :as any) value) (reset! sig value)))
(define
simulate-signal-set!
:effects (mutation)
(fn ((sig :as any) value) (reset! sig value)))
(define simulate-signal-swap! :effects (mutation) (fn ((sig :as any) (f :as lambda) &rest args) (apply swap! (cons sig (cons f args)))))
(define
simulate-signal-swap!
:effects (mutation)
(fn ((sig :as any) (f :as lambda)) (swap! sig f)))
(define assert-computed-dep-count :effects () (fn ((sig :as any) (n :as number)) (let ((actual (len (signal-deps sig)))) (assert= actual n (str "Expected " n " deps, got " actual)))))
(define
assert-computed-dep-count
:effects ()
(fn
((sig :as any) (n :as number))
(let
((actual (len (signal-deps sig))))
(assert= actual n (str "Expected " n " deps, got " actual)))))
(define assert-computed-depends-on :effects () (fn ((computed-sig :as any) (dep-sig :as any)) (assert (contains? (signal-deps computed-sig) dep-sig) "Expected computed to depend on the given signal")))
(define
assert-computed-depends-on
:effects ()
(fn
((computed-sig :as any) (dep-sig :as any))
(assert
(contains? (signal-deps computed-sig) dep-sig)
"Expected computed to depend on the given signal")))
(define count-effect-runs :effects (mutation) (fn ((thunk :as lambda)) (let ((count (signal 0))) (effect (fn () (deref count))) (let ((run-count 0) (tracker (effect (fn () (set! run-count (+ run-count 1)) (cek-call thunk nil))))) run-count))))
(define
count-effect-runs
:effects (mutation)
(fn
((thunk :as lambda))
(let
((count (signal 0)))
(effect (fn () (deref count)))
(let
((run-count 0)
(tracker
(effect
(fn () (set! run-count (+ run-count 1)) (cek-call thunk nil)))))
run-count))))
(define make-test-signal :effects (mutation) (fn (initial-value) (let ((sig (signal initial-value)) (history (list))) (effect (fn () (append! history (deref sig)))) {:signal sig :history history})))
(define
make-test-signal
:effects (mutation)
(fn
(initial-value)
(let
((sig (signal initial-value)) (history (list)))
(effect (fn () (append! history (deref sig))))
{:signal sig :history history})))
(define assert-batch-coalesces :effects (mutation) (fn ((thunk :as lambda) (expected-notify-count :as number)) (let ((notify-count 0) (sig (signal 0))) (effect (fn () (deref sig) (set! notify-count (+ notify-count 1)))) (set! notify-count 0) (batch thunk) (assert= notify-count expected-notify-count (str "Expected " expected-notify-count " notifications, got " notify-count)))))
(define
assert-batch-coalesces
:effects (mutation)
(fn
((thunk :as lambda) (expected-notify-count :as number))
(let
((notify-count 0) (sig (signal 0)))
(effect (fn () (deref sig) (set! notify-count (+ notify-count 1))))
(set! notify-count 0)
(batch thunk)
(assert=
notify-count
expected-notify-count
(str
"Expected "
expected-notify-count
" notifications, got "
notify-count)))))

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@@ -1,227 +1,221 @@
;; ==========================================================================
;; browser.sx — Browser API library functions
;;
;; Location, history, storage, cookies, timers, fetch — all expressed
;; using the host FFI primitives. Library functions, not primitives.
;; ==========================================================================
(define
browser-location-href
(fn () (host-get (host-get (dom-window) "location") "href")))
(define
browser-location-pathname
(fn () (host-get (host-get (dom-window) "location") "pathname")))
;; --------------------------------------------------------------------------
;; Location & navigation
;; --------------------------------------------------------------------------
(define
browser-location-origin
(fn () (host-get (host-get (dom-window) "location") "origin")))
(define browser-location-href
(fn ()
(host-get (host-get (dom-window) "location") "href")))
(define
browser-same-origin?
(fn (url) (starts-with? url (browser-location-origin))))
(define browser-location-pathname
(fn ()
(host-get (host-get (dom-window) "location") "pathname")))
(define browser-location-origin
(fn ()
(host-get (host-get (dom-window) "location") "origin")))
(define browser-same-origin?
(fn (url)
(starts-with? url (browser-location-origin))))
;; Extract pathname from a URL string using the URL API
(define url-pathname
(fn (url)
(define
url-pathname
(fn
(url)
(host-get (host-new "URL" url (browser-location-origin)) "pathname")))
(define browser-push-state
(fn (url-or-state &rest rest)
(if (empty? rest)
;; Single arg: just URL
(host-call (host-get (dom-window) "history") "pushState" nil "" url-or-state)
;; Three args: state, title, url
(host-call (host-get (dom-window) "history") "pushState" url-or-state (first rest) (nth rest 1)))))
(define
browser-push-state
(fn
(url-or-state title url)
(if
(nil? title)
(host-call
(host-get (dom-window) "history")
"pushState"
nil
""
url-or-state)
(host-call
(host-get (dom-window) "history")
"pushState"
url-or-state
title
url))))
(define browser-replace-state
(fn (url-or-state &rest rest)
(if (empty? rest)
(host-call (host-get (dom-window) "history") "replaceState" nil "" url-or-state)
(host-call (host-get (dom-window) "history") "replaceState" url-or-state (first rest) (nth rest 1)))))
(define
browser-replace-state
(fn
(url-or-state title url)
(if
(nil? title)
(host-call
(host-get (dom-window) "history")
"replaceState"
nil
""
url-or-state)
(host-call
(host-get (dom-window) "history")
"replaceState"
url-or-state
title
url))))
(define browser-reload
(fn ()
(host-call (host-get (dom-window) "location") "reload")))
(define
browser-reload
(fn () (host-call (host-get (dom-window) "location") "reload")))
(define browser-navigate
(fn (url)
(host-set! (host-get (dom-window) "location") "href" url)))
(define
browser-navigate
(fn (url) (host-set! (host-get (dom-window) "location") "href" url)))
;; --------------------------------------------------------------------------
;; Storage
;; --------------------------------------------------------------------------
(define local-storage-get
(fn (key)
(define
local-storage-get
(fn
(key)
(host-call (host-get (dom-window) "localStorage") "getItem" key)))
(define local-storage-set
(fn (key val)
(define
local-storage-set
(fn
(key val)
(host-call (host-get (dom-window) "localStorage") "setItem" key val)))
(define local-storage-remove
(fn (key)
(define
local-storage-remove
(fn
(key)
(host-call (host-get (dom-window) "localStorage") "removeItem" key)))
;; --------------------------------------------------------------------------
;; Timers
;; --------------------------------------------------------------------------
(define set-timeout
(fn (fn-val ms)
(define
set-timeout
(fn
(fn-val ms)
(host-call (dom-window) "setTimeout" (host-callback fn-val) ms)))
(define set-interval
(fn (fn-val ms)
(define
set-interval
(fn
(fn-val ms)
(host-call (dom-window) "setInterval" (host-callback fn-val) ms)))
(define clear-timeout
(fn (id)
(host-call (dom-window) "clearTimeout" id)))
(define clear-timeout (fn (id) (host-call (dom-window) "clearTimeout" id)))
(define clear-interval
(fn (id)
(host-call (dom-window) "clearInterval" id)))
(define
clear-interval
(fn (id) (host-call (dom-window) "clearInterval" id)))
(define request-animation-frame
(fn (fn-val)
(define
request-animation-frame
(fn
(fn-val)
(host-call (dom-window) "requestAnimationFrame" (host-callback fn-val))))
(define
fetch-request
(fn (url opts) (host-call (dom-window) "fetch" url opts)))
;; --------------------------------------------------------------------------
;; Fetch
;; --------------------------------------------------------------------------
(define new-abort-controller (fn () (host-new "AbortController")))
(define fetch-request
(fn (url opts)
(host-call (dom-window) "fetch" url opts)))
(define controller-signal (fn (controller) (host-get controller "signal")))
(define new-abort-controller
(fn ()
(host-new "AbortController")))
(define controller-abort (fn (controller) (host-call controller "abort")))
(define controller-signal
(fn (controller)
(host-get controller "signal")))
(define controller-abort
(fn (controller)
(host-call controller "abort")))
;; --------------------------------------------------------------------------
;; Promises
;; --------------------------------------------------------------------------
(define promise-then
(fn (p on-resolve on-reject)
(let ((cb-resolve (host-callback on-resolve))
(cb-reject (if on-reject (host-callback on-reject) nil)))
(if cb-reject
(define
promise-then
(fn
(p on-resolve on-reject)
(let
((cb-resolve (host-callback on-resolve))
(cb-reject (if on-reject (host-callback on-reject) nil)))
(if
cb-reject
(host-call (host-call p "then" cb-resolve) "catch" cb-reject)
(host-call p "then" cb-resolve)))))
(define promise-resolve
(fn (val)
(host-call (host-global "Promise") "resolve" val)))
(define
promise-resolve
(fn (val) (host-call (host-global "Promise") "resolve" val)))
(define promise-delayed
(fn (ms val)
(host-new "Promise" (host-callback
(fn (resolve)
(set-timeout (fn () (host-call resolve "call" nil val)) ms))))))
(define
promise-delayed
(fn
(ms val)
(host-new
"Promise"
(host-callback
(fn
(resolve)
(set-timeout (fn () (host-call resolve "call" nil val)) ms))))))
(define browser-confirm (fn (msg) (host-call (dom-window) "confirm" msg)))
;; --------------------------------------------------------------------------
;; Dialogs & media
;; --------------------------------------------------------------------------
(define
browser-prompt
(fn (msg default) (host-call (dom-window) "prompt" msg default)))
(define browser-confirm
(fn (msg) (host-call (dom-window) "confirm" msg)))
(define browser-prompt
(fn (msg default)
(host-call (dom-window) "prompt" msg default)))
(define browser-media-matches?
(fn (query)
(define
browser-media-matches?
(fn
(query)
(host-get (host-call (dom-window) "matchMedia" query) "matches")))
(define json-parse (fn (s) (host-call (host-global "JSON") "parse" s)))
;; --------------------------------------------------------------------------
;; JSON
;; --------------------------------------------------------------------------
(define
log-info
(fn (msg) (host-call (host-global "console") "log" (str "[sx] " msg))))
(define json-parse
(fn (s)
(host-call (host-global "JSON") "parse" s)))
(define
log-warn
(fn (msg) (host-call (host-global "console") "warn" (str "[sx] " msg))))
(define
console-log
(fn (msg) (host-call (host-global "console") "log" (str "[sx] " msg))))
;; --------------------------------------------------------------------------
;; Console
;; --------------------------------------------------------------------------
(define now-ms (fn () (host-call (host-global "Date") "now")))
(define log-info
(fn (msg)
(host-call (host-global "console") "log" (str "[sx] " msg))))
(define log-warn
(fn (msg)
(host-call (host-global "console") "warn" (str "[sx] " msg))))
(define console-log
(fn (&rest args)
(host-call (host-global "console") "log"
(join " " (cons "[sx]" (map str args))))))
(define now-ms
(fn ()
(host-call (host-global "Date") "now")))
;; --------------------------------------------------------------------------
;; Scheduling
;; --------------------------------------------------------------------------
(define schedule-idle
(fn (f)
(let ((cb (host-callback (fn (_deadline) (f)))))
(if (host-get (dom-window) "requestIdleCallback")
(define
schedule-idle
(fn
(f)
(let
((cb (host-callback (fn (_deadline) (f)))))
(if
(host-get (dom-window) "requestIdleCallback")
(host-call (dom-window) "requestIdleCallback" cb)
(set-timeout cb 0)))))
(define
set-cookie
(fn
(name value days)
(let
((d (or days 365))
(expires
(host-call
(host-new
"Date"
(+ (host-call (host-global "Date") "now") (* d 86400000)))
"toUTCString")))
(host-set!
(dom-document)
"cookie"
(str
name
"="
(host-call nil "encodeURIComponent" value)
";expires="
expires
";path=/;SameSite=Lax")))))
;; --------------------------------------------------------------------------
;; Cookies
;; --------------------------------------------------------------------------
(define set-cookie
(fn (name value days)
(let ((d (or days 365))
(expires (host-call
(host-new "Date"
(+ (host-call (host-global "Date") "now")
(* d 864e5)))
"toUTCString")))
(host-set! (dom-document) "cookie"
(str name "="
(host-call nil "encodeURIComponent" value)
";expires=" expires ";path=/;SameSite=Lax")))))
(define get-cookie
(fn (name)
(let ((cookies (host-get (dom-document) "cookie"))
(match (host-call cookies "match"
(host-new "RegExp"
(str "(?:^|;\\s*)" name "=([^;]*)")))))
(if match
(host-call nil "decodeURIComponent" (host-get match 1))
nil))))
(define
get-cookie
(fn
(name)
(let
((cookies (host-get (dom-document) "cookie"))
(match
(host-call
cookies
"match"
(host-new "RegExp" (str "(?:^|;\\s*)" name "=([^;]*)")))))
(if match (host-call nil "decodeURIComponent" (host-get match 1)) nil))))

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@@ -9,13 +9,11 @@
(define
dom-create-element
(fn
(tag &rest ns-arg)
(let
((ns (if (and ns-arg (not (empty? ns-arg))) (first ns-arg) nil)))
(if
ns
(host-call (dom-document) "createElementNS" ns tag)
(host-call (dom-document) "createElement" tag)))))
(tag ns)
(if
ns
(host-call (dom-document) "createElementNS" ns tag)
(host-call (dom-document) "createElement" tag))))
(define
create-text-node
@@ -128,11 +126,11 @@
(define
dom-query
(fn
(root-or-sel &rest rest)
(root-or-sel sel)
(if
(empty? rest)
(nil? sel)
(host-call (dom-document) "querySelector" root-or-sel)
(host-call root-or-sel "querySelector" (first rest)))))
(host-call root-or-sel "querySelector" sel))))
(define
dom-query-all
@@ -342,12 +340,12 @@
(define
dom-add-listener
(fn
(el event-name handler &rest opts)
(el event-name handler opts)
(let
((cb (host-callback handler)))
(if
(and opts (not (empty? opts)))
(host-call el "addEventListener" event-name cb (first opts))
opts
(host-call el "addEventListener" event-name cb opts)
(host-call el "addEventListener" event-name cb))
(fn () (host-call el "removeEventListener" event-name cb)))))